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* [edk2-platform][PATCH v1 0/2] Update ASIX USB Networking drivers
@ 2020-05-07  3:37 Samer El-Haj-Mahmoud
  2020-05-07  3:37 ` [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver Samer El-Haj-Mahmoud
  2020-05-07  3:37 ` [edk2-platform][PATCH v1 2/2] Drivers/OptionRomPkg: UsbNetworking: ASIX Ax88772c driver v2.8.0 Samer El-Haj-Mahmoud
  0 siblings, 2 replies; 6+ messages in thread
From: Samer El-Haj-Mahmoud @ 2020-05-07  3:37 UTC (permalink / raw)
  To: devel; +Cc: Ray Ni, Leif Lindholm, Ard Biesheuvel

This series adds two new ASIX USB networking drivers, Ax88179 and Ax88772c.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>

Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>

Samer El-Haj-Mahmoud (2):
  OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
  Drivers/OptionRomPkg: UsbNetworking: ASIX Ax88772c driver v2.8.0

 .../Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf |   66 +
 .../Usb/UsbNetworking/Ax88772c/Ax88772c.inf   |   65 +
 .../Bus/Usb/UsbNetworking/Ax88179/Ax88179.h   | 1127 ++++++++++++
 .../Bus/Usb/UsbNetworking/Ax88772c/Ax88772.h  | 1097 +++++++++++
 .../Bus/Usb/UsbNetworking/Ax88179/Ax88179.c   | 1026 +++++++++++
 .../Usb/UsbNetworking/Ax88179/ComponentName.c |  290 +++
 .../Usb/UsbNetworking/Ax88179/DriverBinding.c |  620 +++++++
 .../Usb/UsbNetworking/Ax88179/SimpleNetwork.c | 1585 ++++++++++++++++
 .../Bus/Usb/UsbNetworking/Ax88772c/Ax88772.c  | 1296 +++++++++++++
 .../UsbNetworking/Ax88772c/ComponentName.c    |  246 +++
 .../UsbNetworking/Ax88772c/DriverBinding.c    |  637 +++++++
 .../UsbNetworking/Ax88772c/SimpleNetwork.c    | 1612 +++++++++++++++++
 12 files changed, 9667 insertions(+)
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772c.inf
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.h
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/ComponentName.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/DriverBinding.c
 create mode 100644 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/SimpleNetwork.c

-- 
2.17.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
  2020-05-07  3:37 [edk2-platform][PATCH v1 0/2] Update ASIX USB Networking drivers Samer El-Haj-Mahmoud
@ 2020-05-07  3:37 ` Samer El-Haj-Mahmoud
  2020-05-07  5:22   ` Ni, Ray
  2020-05-07  3:37 ` [edk2-platform][PATCH v1 2/2] Drivers/OptionRomPkg: UsbNetworking: ASIX Ax88772c driver v2.8.0 Samer El-Haj-Mahmoud
  1 sibling, 1 reply; 6+ messages in thread
From: Samer El-Haj-Mahmoud @ 2020-05-07  3:37 UTC (permalink / raw)
  To: devel; +Cc: Ray Ni, Leif Lindholm, Ard Biesheuvel

This is the initial revision of ASIX USB networking UEFI driver
version 2.9.0 for Ax88179 and Ax88178a
https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=131;71;112

Source code contributed by ASIX.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>

Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>
---
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf     |   66 +
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h       | 1127 ++++++++++++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c       | 1026 +++++++++++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c |  290 ++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c |  620 ++++++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c | 1585 ++++++++++++++++++++
 6 files changed, 4714 insertions(+)

diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
new file mode 100644
index 000000000000..a1883e9da1fd
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
@@ -0,0 +1,66 @@
+## @file
+# Component description file for ASIX AX88772 USB/Ethernet driver.
+#
+# This module provides support for the ASIX AX88772 USB/Ethernet adapter.
+# Copyright (c) 2011, Intel Corporation
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010018
+  BASE_NAME                      = Ax88179
+  FILE_GUID                      = 27E5D3B6-7839-47C2-8618-5D2190729BC7
+  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
+  VERSION_STRING                 = 1.0
+
+  ENTRY_POINT                    = EntryPoint
+
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources.common]
+  Ax88179.h
+  Ax88179.c
+  ComponentName.c
+  DriverBinding.c
+  SimpleNetwork.c
+
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  UefiLib
+  UefiBootServicesTableLib
+  BaseMemoryLib
+  DebugLib
+  UefiRuntimeLib
+  UefiDriverEntryPoint
+
+[Protocols]
+  gEfiDevicePathProtocolGuid           ## BY_START
+  gEfiSimpleNetworkProtocolGuid        ## BY_START
+  gEfiUsbIoProtocolGuid                ## TO_START
+
+#[Guids]
+  #gEfiEventExitBootServicesGuid        ## PRODUCES ## Event
+  #gEfiEventVirtualAddressChangeGuid    ## PRODUCES ## Event
+  #gEfiNicIp4ConfigVariableGuid
+
+[Depex]
+  gEfiBdsArchProtocolGuid AND
+  gEfiCpuArchProtocolGuid AND
+  gEfiMetronomeArchProtocolGuid AND
+  gEfiMonotonicCounterArchProtocolGuid AND
+  gEfiRealTimeClockArchProtocolGuid AND
+  gEfiResetArchProtocolGuid AND
+  gEfiRuntimeArchProtocolGuid AND
+  gEfiSecurityArchProtocolGuid AND
+  gEfiTimerArchProtocolGuid AND
+  gEfiVariableWriteArchProtocolGuid AND
+  gEfiVariableArchProtocolGuid AND
+  gEfiWatchdogTimerArchProtocolGuid
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
new file mode 100644
index 000000000000..82c9a3668d86
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
@@ -0,0 +1,1127 @@
+/** @file
+  Definitions for ASIX AX88179 Ethernet adapter.
+
+  Copyright (c) 2011, Intel Corporation
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _AX88179_H_
+#define _AX88179_H_
+
+#include <Uefi.h>
+
+#include <Guid/EventGroup.h>
+
+#include <IndustryStandard/Pci.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeLib.h>
+
+#include <Protocol/DevicePath.h>
+#include <Protocol/LoadedImage.h>
+#include <Protocol/NetworkInterfaceIdentifier.h>
+#include <Protocol/SimpleNetwork.h>
+#include <Protocol/UsbIo.h>
+
+
+#define PASS_SCT      0
+#define FORCE_100Mbps 0
+#define REPORTLINK    1
+
+
+//------------------------------------------------------------------------------
+//  Macros
+//------------------------------------------------------------------------------
+
+//#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler specifics. */
+#define DBG_ENTER()             DEBUG (( 0xffffffff, "Entering " __FUNCTION__ "\n" )) ///<  Display routine entry
+#define DBG_EXIT()              DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ "\n" ))  ///<  Display routine exit
+#define DBG_EXIT_DEC(Status)    DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: %d\n", Status ))      ///<  Display routine exit with decimal value
+#define DBG_EXIT_HEX(Status)    DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: 0x%08x\n", Status ))  ///<  Display routine exit with hex value
+#define DBG_EXIT_STATUS(Status) DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: %r\n", Status ))      ///<  Display routine exit with status value
+#define DBG_EXIT_TF(Status)     DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", returning %s\n", (FALSE == Status) ? L"FALSE" : L"TRUE" ))  ///<  Display routine with TRUE/FALSE value
+//#else   //  _MSC_VER
+//#define DBG_ENTER()               ///<  Display routine entry
+//#define DBG_EXIT()                ///<  Display routine exit
+//#define DBG_EXIT_DEC(Status)      ///<  Display routine exit with decimal value
+//#define DBG_EXIT_HEX(Status)      ///<  Display routine exit with hex value
+//#define DBG_EXIT_STATUS(Status)   ///<  Display routine exit with status value
+//#define DBG_EXIT_TF(Status)       ///<  Display routine with TRUE/FALSE value
+//#endif  //  _MSC_VER
+
+#define USB_IS_IN_ENDPOINT(EndPointAddr)      (((EndPointAddr) & BIT7) != 0)  ///<  Return TRUE/FALSE for IN direction
+#define USB_IS_OUT_ENDPOINT(EndPointAddr)     (((EndPointAddr) & BIT7) == 0)  ///<  Return TRUE/FALSE for OUT direction
+#define USB_IS_BULK_ENDPOINT(Attribute)       (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_BULK)      ///<  Return TRUE/FALSE for BULK type
+#define USB_IS_INTERRUPT_ENDPOINT(Attribute)  (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) ///<  Return TRUE/FALSE for INTERRUPT type
+
+//------------------------------------------------------------------------------
+//  Constants
+//------------------------------------------------------------------------------
+
+#define DEBUG_RX_BROADCAST  0x40000000  ///<  Display RX broadcast messages
+#define DEBUG_RX_MULTICAST  0x20000000  ///<  Display RX multicast messages
+#define DEBUG_RX_UNICAST    0x10000000  ///<  Display RX unicast messages
+#define DEBUG_MAC_ADDRESS   0x08000000  ///<  Display the MAC address
+#define DEBUG_LINK          0x04000000  ///<  Display the link status
+#define DEBUG_TX            0x02000000  ///<  Display the TX messages
+#define DEBUG_PHY           0x01000000  ///<  Display the PHY register values
+#define DEBUG_SROM          0x00800000  ///<  Display the SROM contents
+#define DEBUG_TIMER         0x00400000  ///<  Display the timer routine entry/exit
+#define DEBUG_TPL           0x00200000  ///<  Display the timer routine entry/exit
+
+
+#define ETHERNET_HEADER_SIZE  sizeof ( ETHERNET_HEADER )  ///<  Size in bytes of the Ethernet header
+#define MIN_ETHERNET_PKT_SIZE 60    ///<  Minimum packet size including Ethernet header
+#define MAX_ETHERNET_PKT_SIZE 1500
+
+#define USB_NETWORK_CLASS   0x09    ///<  USB Network class code
+#define USB_BUS_TIMEOUT     1000    ///<  USB timeout in milliseconds
+
+//#define TIMER_MSEC          20            ///<  Polling interval for the NIC
+//#define TPL_AX88179         TPL_CALLBACK    ///<  TPL for routine synchronization
+
+
+#define AX88179_BULKIN_SIZE_INK     2
+#define AX88179_MAX_BULKIN_SIZE    1024 * AX88179_BULKIN_SIZE_INK
+#define AX88179_MAX_PKT_SIZE  2048
+
+#define HC_DEBUG  0
+#define ADD_MACPATHNOD  1
+#define BULKIN_TIMEOUT  3 //5000
+#define TX_RETRY 0
+#define AUTONEG_DELAY 1000000
+/**
+  Verify new TPL value
+
+  This macro which is enabled when debug is enabled verifies that
+  the new TPL value is >= the current TPL value.
+**/
+#ifdef VERIFY_TPL
+#undef VERIFY_TPL
+#endif  //  VERIFY_TPL
+
+#if !defined(MDEPKG_NDEBUG)
+
+#define VERIFY_TPL(tpl)                           \
+{                                                 \
+  EFI_TPL PreviousTpl;                            \
+                                                  \
+  PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \
+  gBS->RestoreTPL ( PreviousTpl );                \
+  if ( PreviousTpl > tpl ) {                      \
+    DEBUG (( DEBUG_ERROR, "Current TPL: %d, New TPL: %d\r\n", PreviousTpl, tpl ));  \
+    ASSERT ( PreviousTpl <= tpl );                \
+  }                                               \
+}
+
+#else   //  MDEPKG_NDEBUG
+
+#define VERIFY_TPL(tpl)
+
+#endif  //  MDEPKG_NDEBUG
+
+//------------------------------------------------------------------------------
+//  Hardware Definition
+//------------------------------------------------------------------------------
+
+#define DEV_SIGNATURE     SIGNATURE_32 ('A','X','8','8')  ///<  Signature of data structures in memory
+
+#define VENDOR_ID         0x0B95  ///<  Vendor ID for Asix
+#define PRODUCT_ID        0x1790  ///<  Product ID for the AX88179 USB 10/100 Ethernet controller
+#define PRODUCT_ID_178A   0x178A
+
+#define RESET_MSEC        1000    ///<  Reset duration
+#define PHY_RESET_MSEC     100    ///<  PHY reset duration
+
+//
+//  RX Control register
+//
+
+
+
+/*Freddy*/
+#define RXC_RH1M          0x0100  ///<  Rx header 1
+#define RXC_RH2M          0x0200  ///<  Rx header 2
+#define RXC_RH3M          0x0400  ///<  Rx header 3
+/*Freddy*/
+
+//
+//  Medium Status register
+//
+
+
+
+//
+//  Software PHY Select register
+//
+
+#define SPHY_PSEL         0x01    ///<  Select internal PHY
+#define SPHY_ASEL         0x02    ///<  1=Auto select, 0=Manual select
+
+//
+//  Software Reset register
+//
+
+#define SRR_RR            0x01    ///<  Clear receive frame length error
+#define SRR_RT            0x02    ///<  Clear transmit frame length error
+#define SRR_PRTE          0x04    ///<  External PHY reset pin tri-state enable
+#define SRR_PRL           0x08    ///<  External PHY reset pin level
+#define SRR_BZ            0x10    ///<  Force Bulk to return zero length packet
+#define SRR_IPRL          0x20    ///<  Internal PHY reset control
+#define SRR_IPPD          0x40    ///<  Internal PHY power down
+
+//
+//  PHY ID values
+//
+
+#define PHY_ID_INTERNAL   0x0003  ///<  Internal PHY
+
+//
+//  USB Commands
+//
+
+#define CMD_PHY_ACCESS_SOFTWARE   0x06  ///<  Software in control of PHY
+#define CMD_PHY_REG_READ          0x07  ///<  Read PHY register, Value: PHY, Index: Register, Data: Register value
+#define CMD_PHY_REG_WRITE         0x08  ///<  Write PHY register, Value: PHY, Index: Register, Data: New 16-bit value
+#define CMD_PHY_ACCESS_HARDWARE   0x0a  ///<  Hardware in control of PHY
+#define CMD_SROM_READ             0x0b  ///<  Read SROM register: Value: Address, Data: Value
+#define CMD_RX_CONTROL_WRITE      0x10  ///<  Set the RX control register, Value: New value
+#define CMD_GAPS_WRITE            0x12  ///<  Write the gaps register, Value: New value
+#define CMD_MAC_ADDRESS_READ      0x11  ///<  Read the MAC address, Data: 6 byte MAC address
+#define CMD_MAC_ADDRESS_WRITE     0x14  ///<  Set the MAC address, Data: New 6 byte MAC address
+
+#define CMD_MEDIUM_STATUS_READ    0x1a  ///<  Read medium status register, Data: Register value
+#define CMD_MEDIUM_STATUS_WRITE   0x1b  ///<  Write medium status register, Value: New value
+#define CMD_RESET                 0x20  ///<  Reset register, Value: New value
+#define CMD_PHY_SELECT            0x22  ///<  PHY select register, Value: New value
+
+/*Freddy*/
+#define CMD_RXQTC                 0x2a  ///<  RX Queue Cascade Threshold Control Register
+/*Freddy*/
+
+//------------------------------
+//  USB Endpoints
+//------------------------------
+
+#define CONTROL_ENDPOINT                0       ///<  Control endpoint
+#define INTERRUPT_ENDPOINT              1       ///<  Interrupt endpoint
+#define BULK_IN_ENDPOINT                2       ///<  Receive endpoint
+#define BULK_OUT_ENDPOINT               3       ///<  Transmit endpoint
+
+//------------------------------
+//  PHY Registers
+//------------------------------
+
+
+
+
+
+#define PHY_ANER                        6       ///<  Autonegotiation expansion register
+
+
+
+//  BSMR - Register 1
+
+
+
+//  ANAR and ANLPAR Registers 4, 5
+
+#define RXHDR_DROP 0x8000
+//#define RXHDR_MIIERR 0x4000
+#define RXHDR_CRCERR 0x2000
+
+
+//------------------------------------------------------------------------------
+//  Data Types
+//------------------------------------------------------------------------------
+
+/**
+  Ethernet header layout
+
+  IEEE 802.3-2002 Part 3 specification, section 3.1.1.
+**/
+#pragma pack(1)
+typedef struct {
+  UINT8 dest_addr[PXE_HWADDR_LEN_ETHER];  ///<  Destination LAN address
+  UINT8 src_addr[PXE_HWADDR_LEN_ETHER];   ///<  Source LAN address
+  UINT16 type;                            ///<  Protocol or length
+} ETHERNET_HEADER;
+#pragma pack()
+
+/**
+  Receive and Transmit packet structure
+**/
+
+
+
+
+#pragma pack(1)
+typedef struct _TX_PACKET {
+//  struct _TX_PACKET * pNext;       ///<  Next receive packet
+  UINT32  TxHdr1;
+  UINT32  TxHdr2;
+  UINT8 Data[ AX88179_MAX_PKT_SIZE ]; ///<  Received packet data
+} TX_PACKET;
+#pragma pack()
+
+#pragma pack(1)
+typedef struct _RX_PACKET {
+  struct _RX_PACKET * pNext;
+  UINT16  Length;
+  UINT16  EEEE;
+  UINT8 Data[ AX88179_MAX_PKT_SIZE ];
+} RX_PACKET;
+#pragma pack()
+
+
+
+
+/**
+  AX88179 control structure
+
+  The driver uses this structure to manage the Asix AX88179 10/100
+  Ethernet controller.
+**/
+typedef struct {
+  UINTN Signature;          ///<  Structure identification
+
+  //
+  //  USB data
+  //
+  EFI_HANDLE Controller;        ///<  Controller handle
+  EFI_USB_IO_PROTOCOL * pUsbIo; ///<  USB driver interface
+
+  //
+  //  Simple network protocol data
+  //
+  EFI_SIMPLE_NETWORK_PROTOCOL SimpleNetwork;  ///<  Driver's network stack interface
+  EFI_SIMPLE_NETWORK_MODE SimpleNetworkData;  ///<  Data for simple network
+
+  //
+  // Ethernet controller data
+  //
+  BOOLEAN bInitialized;     ///<  Controller initialized
+  UINT16 PhyId;             ///<  PHY ID
+
+  //
+  //  Link state
+  //
+  BOOLEAN b100Mbps;         ///<  Current link speed, FALSE = 10 Mbps
+  BOOLEAN b1000Mbps;        ///<  Current link speed, FALSE = 100/10 bps
+  BOOLEAN bComplete;        ///<  Current state of auto-negotiation
+  BOOLEAN bFullDuplex;      ///<  Current duplex
+  BOOLEAN bLinkUp;          ///<  Current link state
+  BOOLEAN bLinkIdle;        ///<  TRUE = No received traffic
+  EFI_EVENT Timer;          ///<  Timer to monitor link state and receive packets
+  UINTN PollCount;          ///<  Number of times the autonegotiation status was polled
+  UINTN SkipRXCnt;
+
+  UINT8     *pBulkInbuf;
+  UINT16    PktCnt;
+  UINT8    * pCurPktHdrOff;
+  UINT8     *pCurPktOff;
+
+  TX_PACKET * pTxTest;
+
+  INT8 MulticastHash[8];
+  EFI_MAC_ADDRESS MAC;
+
+  UINT16 CurMediumStatus;
+  UINT16 CurRxControl;
+  VOID * pTxBuffer;
+
+  EFI_DEVICE_PATH_PROTOCOL                  *MyDevPath;
+  BOOLEAN   Grub_f;
+  BOOLEAN   bFirstRst;
+  BOOLEAN   bSetZeroLen;
+  UINT8 rxburst;
+  UINTN usbMaxPktSize;
+
+} NIC_DEVICE;
+
+#define DEV_FROM_SIMPLE_NETWORK(a)  CR (a, NIC_DEVICE, SimpleNetwork, DEV_SIGNATURE)  ///< Locate NIC_DEVICE from Simple Network Protocol
+
+//------------------------------------------------------------------------------
+// Simple Network Protocol
+//------------------------------------------------------------------------------
+
+/**
+  Reset the network adapter.
+
+  Resets a network adapter and reinitializes it with the parameters that
+  were provided in the previous call to Initialize ().  The transmit and
+  receive queues are cleared.  Receive filters, the station address, the
+  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
+  this call.
+
+  This routine calls ::Ax88179Reset to perform the adapter specific
+  reset operation.  This routine also starts the link negotiation
+  by calling ::Ax88179NegotiateLinkStart.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bExtendedVerification  Indicates that the driver may perform a more
+                                exhaustive verification operation of the device
+                                during reset.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Reset (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bExtendedVerification
+  );
+
+/**
+  Initialize the simple network protocol.
+
+  This routine calls ::Ax88179MacAddressGet to obtain the
+  MAC address.
+
+  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
+
+  @retval EFI_SUCCESS     Setup was successful
+
+**/
+EFI_STATUS
+SN_Setup (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  This routine starts the network interface.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_ALREADY_STARTED   The network interface was already started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Start (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  );
+
+/**
+  Set the MAC address.
+
+  This function modifies or resets the current station address of a
+  network interface.  If Reset is TRUE, then the current station address
+  is set ot the network interface's permanent address.  If Reset if FALSE
+  then the current station address is changed to the address specified by
+  pNew.
+
+  This routine calls ::Ax88179MacAddressSet to update the MAC address
+  in the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Flag used to reset the station address to the
+                                network interface's permanent address.
+  @param [in] pNew              New station address to be used for the network
+                                interface.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_StationAddress (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN EFI_MAC_ADDRESS * pNew
+  );
+
+/**
+  This function resets or collects the statistics on a network interface.
+  If the size of the statistics table specified by StatisticsSize is not
+  big enough for all of the statistics that are collected by the network
+  interface, then a partial buffer of statistics is returned in
+  StatisticsTable.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
+  @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
+                                the size, in bytes, of the resulting table of statistics.
+  @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
+                                conains the statistics.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Statistics (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN OUT UINTN * pStatisticsSize,
+  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
+  );
+
+/**
+  This function stops a network interface.  This call is only valid
+  if the network interface is in the started state.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Stop (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  );
+
+/**
+  This function releases the memory buffers assigned in the Initialize() call.
+  Pending transmits and receives are lost, and interrupts are cleared and disabled.
+  After this call, only Initialize() and Stop() calls may be used.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Shutdown (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  );
+
+/**
+  Send a packet over the network.
+
+  This function places the packet specified by Header and Buffer on
+  the transmit queue.  This function performs a non-blocking transmit
+  operation.  When the transmit is complete, the buffer is returned
+  via the GetStatus() call.
+
+  This routine calls ::Ax88179Rx to empty the network adapter of
+  receive packets.  The routine then passes the transmit packet
+  to the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
+                                the Transmit() function.  If HeaderSize is non-zero, then
+                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
+                                and DestAddr and Protocol parameters must not be NULL.
+  @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
+                                data) to be transmitted through the network interface.
+  @param [in] pBuffer           A pointer to the packet (media header followed by data) to
+                                to be transmitted.  This parameter can not be NULL.  If
+                                HeaderSize is zero, then the media header is Buffer must
+                                already be filled in by the caller.  If HeaderSize is nonzero,
+                                then the media header will be filled in by the Transmit()
+                                function.
+  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.  If HeaderSize is nonzero and
+                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
+                                is used for the source HW MAC address.
+  @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.
+  @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
+                                this parameter is ignored.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
+  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Transmit (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINTN HeaderSize,
+  IN UINTN BufferSize,
+  IN VOID * pBuffer,
+  IN EFI_MAC_ADDRESS * pSrcAddr,
+  IN EFI_MAC_ADDRESS * pDestAddr,
+  IN UINT16 * pProtocol
+  );
+
+//------------------------------------------------------------------------------
+// Support Routines
+//------------------------------------------------------------------------------
+
+/**
+  Get the MAC address
+
+  This routine calls ::Ax88179UsbCommand to request the MAC
+  address from the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88179MacAddressGet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  );
+
+
+/**
+  Clear the multicast hash table
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88179MulticastClear (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  Enable a multicast address in the multicast hash table
+
+  This routine calls ::Ax88179Crc to compute the hash bit for
+  this MAC address.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
+
+**/
+VOID
+Ax88179MulticastSet (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 * pMacAddress
+  );
+
+/**
+  Start the link negotiation
+
+  This routine calls ::Ax88179PhyWrite to start the PHY's link
+  negotiation.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The link negotiation was started.
+  @retval other                Failed to start the link negotiation.
+
+**/
+EFI_STATUS
+Ax88179NegotiateLinkStart (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  Complete the negotiation of the PHY link
+
+  This routine calls ::Ax88179PhyRead to determine if the
+  link negotiation is complete.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in, out] pPollCount  Address of number of times this routine was polled
+  @param [out] pbComplete      Address of boolean to receive complate status.
+  @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
+  @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
+  @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88179NegotiateLinkComplete (
+  IN NIC_DEVICE * pNicDevice,
+  IN OUT UINTN * pPollCount,
+  OUT BOOLEAN * pbComplete,
+  OUT BOOLEAN * pbLinkUp,
+  OUT BOOLEAN * pbHiSpeed,
+  OUT BOOLEAN * pbGigaSpeed,
+  OUT BOOLEAN * pbFullDuplex
+  );
+
+/**
+  Read a register from the PHY
+
+  This routine calls ::Ax88179UsbCommand to read a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data is available.
+  @retval other                The PHY data is not valid.
+
+**/
+
+
+/**
+  Reset the AX88179
+
+  This routine uses ::Ax88179UsbCommand to reset the network
+  adapter.  This routine also uses ::Ax88179PhyWrite to reset
+  the PHY.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88179Reset (
+  IN NIC_DEVICE * pNicDevice
+  );
+#if 0
+/**
+  Receive a frame from the network.
+
+  This routine polls the USB receive interface for a packet.  If a packet
+  is available, this routine adds the receive packet to the list of
+  pending receive packets.
+
+  This routine calls ::Ax88179NegotiateLinkComplete to verify
+  that the link is up.  This routine also calls ::SN_Reset to
+  reset the network adapter when necessary.  Finally this
+  routine attempts to receive one or more packets from the
+  network adapter.
+
+  @param [in] pNicDevice  Pointer to the NIC_DEVICE structure
+  @param [in] bUpdateLink TRUE = Update link status
+
+**/
+VOID
+Ax88179Rx (
+  IN NIC_DEVICE * pNicDevice,
+  IN BOOLEAN bUpdateLink
+  );
+#endif
+/**
+  Enable or disable the receiver
+
+  This routine calls ::Ax88179UsbCommand to update the
+  receiver state.  This routine also calls ::Ax88179MacAddressSet
+  to establish the MAC address for the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RxFilter         Simple network RX filter mask value
+
+  @retval EFI_SUCCESS          The MAC address was set.
+  @retval other                The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88179RxControl (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 RxFilter
+  );
+
+  EFI_STATUS
+Ax88179ReloadSrom  (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  Read an SROM location
+
+  This routine calls ::Ax88179UsbCommand to read data from the
+  SROM.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] Address          SROM address
+  @param [out] pData           Buffer to receive the data
+
+  @retval EFI_SUCCESS          The read was successful
+  @retval other                The read failed
+
+**/
+EFI_STATUS
+Ax88179SromRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  OUT UINT16 * pData
+  );
+
+
+EFI_STATUS
+Ax88179EnableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+
+EFI_STATUS
+Ax88179DisableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+EFI_STATUS
+Ax88179SromWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  OUT UINT16 * pData
+  );
+
+/**
+  Send a command to the USB device.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pRequest         Pointer to the request structure
+  @param [in, out] pBuffer     Data buffer address
+
+  @retval EFI_SUCCESS          The USB transfer was successful
+  @retval other                The USB transfer failed
+
+**/
+
+EFI_STATUS
+Ax88179UsbCommand (
+  IN NIC_DEVICE * pNicDevice,
+  IN USB_DEVICE_REQUEST * pRequest,
+  IN OUT VOID * pBuffer
+  );
+
+//------------------------------------------------------------------------------
+// EFI Component Name Protocol Support
+//------------------------------------------------------------------------------
+extern EFI_DRIVER_BINDING_PROTOCOL   gDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;  ///<  Component name protocol declaration
+extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2; ///<  Component name 2 protocol declaration
+
+/**
+  Retrieves a Unicode string that is the user readable name of the driver.
+
+  This function retrieves the user readable name of a driver in the form of a
+  Unicode string. If the driver specified by This has a user readable name in
+  the language specified by Language, then a pointer to the driver name is
+  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+  by This does not support the language specified by Language,
+  then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language. This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified
+                                in RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppDriverName     A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                driver specified by This in the language
+                                specified by Language.
+
+  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
+                                This and the language specified by Language was
+                                returned in DriverName.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER DriverName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+GetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppDriverName
+  );
+
+
+/**
+  Retrieves a Unicode string that is the user readable name of the controller
+  that is being managed by a driver.
+
+  This function retrieves the user readable name of the controller specified by
+  ControllerHandle and ChildHandle in the form of a Unicode string. If the
+  driver specified by This has a user readable name in the language specified by
+  Language, then a pointer to the controller name is returned in ControllerName,
+  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
+  managing the controller specified by ControllerHandle and ChildHandle,
+  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
+  support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] ControllerHandle  The handle of a controller that the driver
+                                specified by This is managing.  This handle
+                                specifies the controller whose name is to be
+                                returned.
+  @param [in] ChildHandle       The handle of the child controller to retrieve
+                                the name of.  This is an optional parameter that
+                                may be NULL.  It will be NULL for device
+                                drivers.  It will also be NULL for a bus drivers
+                                that wish to retrieve the name of the bus
+                                controller.  It will not be NULL for a bus
+                                driver that wishes to retrieve the name of a
+                                child controller.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language.  This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified in
+                                RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppControllerName A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                controller specified by ControllerHandle and
+                                ChildHandle in the language specified by
+                                Language from the point of view of the driver
+                                specified by This.
+
+  @retval EFI_SUCCESS           The Unicode string for the user readable name in
+                                the language specified by Language for the
+                                driver specified by This was returned in
+                                DriverName.
+  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+                                EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
+                                managing the controller specified by
+                                ControllerHandle and ChildHandle.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+GetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  EFI_HANDLE ControllerHandle,
+  IN OPTIONAL EFI_HANDLE ChildHandle,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppControllerName
+  );
+
+EFI_STATUS
+Ax88179SetMedium (
+  IN NIC_DEVICE * pNicDevice
+  );
+//-----------------------------------------------------------------------------
+
+
+
+
+
+#define ACCESS_MAC  0x01
+#define ACCESS_PHY  0x02
+
+#define PLSR                0x02
+  #define PLSR_USB_FS  0x01
+  #define PLSR_USB_HS  0x02
+  #define PLSR_USB_SS  0x04
+
+#define NODE_ID               0x10
+
+#define RXCTL                 0x0b
+  #define RXCTL_PRO         0x0001  ///<  Receive all packets
+  #define RXCTL_AMALL       0x0002  ///<  Receive all multicast packets
+  #define RXCTL_SEP         0x0004  ///<  Save error packets
+  #define RXCTL_AB          0x0008  ///<  Receive broadcast packets
+  #define RXCTL_AM          0x0010  ///<  Use multicast destination address hash table
+  #define RXCTL_AP          0x0020  ///<  Accept physical address from Multicast Filter
+  #define RXCTL_ARP         0x0040  ///<  Accept runt packet
+  #define RXCTL_SO          0x0080  ///<  Start operation
+  #define RXCTL_DROPCRCERR  0x0100  ///<  RX header 1 formate selection
+  #define RXCTL_IPE         0x0200  ///<  RX header 2 formate selection
+  #define RXCTL_TXPADCRC    0x0400  ///<  RX header 3 formate selection
+  #define RXCTL_LPBK        0x1000  ///<  MAC loop back for diagnostic
+
+#define MULCATFLTARRY       0x16  ///<  Write the multicast hash table, Data: New 8 byte value
+
+#define MEDIUMSTSMOD          0x22
+  #define MEDIUMSTSMOD_GM   0x0001  ///<  Gigabit Mode
+  #define MEDIUMSTSMOD_FD   0x0002  ///<  Full duplex
+  #define MEDIUMSTSMOD_ONE  0x0004  ///<  Must be one
+  #define MEDIUMSTSMOD_ENCK 0x0008  ///<  Add in 04h
+  #define MEDIUMSTSMOD_RFC  0x0010  ///<  RX flow control enable
+  #define MEDIUMSTSMOD_TFC  0x0020  ///<  TX flow control enable
+  #define MEDIUMSTSMOD_JFE  0x0040  ///<  Pause frame enable
+  #define MEDIUMSTSMOD_PF   0x0080  ///<  Pause frame enable
+  #define MEDIUMSTSMOD_RE   0x0100  ///<  Receive enable
+  #define MEDIUMSTSMOD_PS   0x0200  ///<  Port speed 1=100, 0=10 Mbps
+  #define MEDIUMSTSMOD_SBP  0x0800  ///<  Stop back pressure
+  #define MEDIUMSTSMOD_SM   0x1000  ///<  Super MAC support
+
+#define MONITORSTAUS          0x24
+  #define  MONITORSTAUS_PMETYPE   0x40
+  #define  MONITORSTAUS_PMEPOL    0x20
+
+#define PHYPWRRSTCTL          0x26
+  #define PHYPWRRSTCTL_IPRL     0x20
+  #define PHYPWRRSTCTL_OSCDSSEL 0x80
+  #define PHYPWRRSTCTL_BZTYPE       0x4
+  #define PHYPWRRSTCTL_BZ      0x10
+
+#define SISSR                 0x28
+  #define SISSR_PSEL        0x01
+  #define SISSR_ASEL        0x02
+
+#define RXBINQCTRL            0x2e
+  #define RXBINQCTRL_TIMEN  0x01
+  #define RXBINQCTRL_IFGEN  0x02
+  #define RXBINQCTRL_SIZEN  0x04
+
+#define RXBINQTIMERL          0x2f
+#define RXBINQTIMERH          0x30
+#define RXBINQSIZE            0x31
+#define RXBINQIFG             0x32
+
+#define CLKSELECT             0x33
+  #define CLKSELECT_ACS       0x02
+  #define CLKSELECT_BCS       0x01
+
+#define PAUSE_WATERLVL_HIGH   0x54
+#define PAUSE_WATERLVL_LOW    0x55
+
+#define RXFREEBUF             0x57
+  #define MAX_RXBUF_PAGE    0x067F
+
+#define PHY_BMCR                        0       ///<  Control register
+  #define BMCR_RESET                      0x8000  ///<  1 = Reset the PHY, bit clears after reset
+  #define BMCR_LOOPBACK                   0x4000  ///<  1 = Loopback enabled
+  #define BMCR_AUTONEGOTIATION_ENABLE     0x1000  ///<  1 = Enable autonegotiation
+  #define BMCR_POWER_DOWN                 0x0800  ///<  1 = Power down
+  #define BMCR_ISOLATE                    0x0400  ///<  0 = Isolate PHY
+  #define BMCR_RESTART_AUTONEGOTIATION    0x0200  ///<  1 = Restart autonegotiation
+  #define BMCR_FULL_DUPLEX                0x0100  ///<  Full duplex operation
+  #define BMCR_COLLISION_TEST             0x0080  ///<  1 = Collision test enabled
+  #define BMCR_1000MBPS                   0x40  ///<  Forced mode in 1000Mbps
+  #define BMCR_100MBPS                    0x2000    ///<  Forced mode in 10Mbps
+
+#define PHY_BMSR                        1       ///<  Status register
+  #define BMSR_100BASET4                  0x8000  ///<  1 = 100BASE-T4 mode
+  #define BMSR_100BASETX_FDX              0x4000  ///<  1 = 100BASE-TX full duplex
+  #define BMSR_100BASETX_HDX              0x2000  ///<  1 = 100BASE-TX half duplex
+  #define BMSR_10BASET_FDX                0x1000  ///<  1 = 10BASE-T full duplex
+  #define BMSR_10BASET_HDX                0x0800  ///<  1 = 10BASE-T half duplex
+  #define BMSR_MF                         0x0040  ///<  1 = PHY accepts frames with preamble suppressed
+  #define BMSR_AUTONEG_CMPLT              0x0020  ///<  1 = Autonegotiation complete
+  #define BMSR_RF                         0x0010  ///<  1 = Remote fault
+  #define BMSR_AUTONEG                    0x0008  ///<  1 = Able to perform autonegotiation
+  #define BMSR_LINKST                     0x0004  ///<  1 = Link up
+  #define BMSR_JABBER_DETECT              0x0002  ///<  1 = jabber condition detected
+  #define BMSR_EXTENDED_CAPABILITY        0x0001  ///<  1 = Extended register capable
+
+#define PHY_ANAR                        4       ///<  Autonegotiation advertisement register
+  #define AN_NP                           0x8000  ///<  1 = Next page available
+  #define AN_RF                           0x2000  ///<  1 = Remote fault indicated by link partner
+  #define AN_FCS                          0x0400  ///<  1 = Flow control ability
+  #define AN_T4                           0x0200  ///<  1 = 100BASE-T4 support
+  #define AN_TX_FDX                       0x0100  ///<  1 = 100BASE-TX Full duplex
+  #define AN_TX_HDX                       0x0080  ///<  1 = 100BASE-TX support
+  #define AN_10_FDX                       0x0040  ///<  1 = 10BASE-T Full duplex
+  #define AN_10_HDX                       0x0020  ///<  1 = 10BASE-T support
+  #define AN_CSMA_CD                      0x0001  ///<  1 = IEEE 802.3 CSMA/CD support
+
+#define PHY_ANLPAR                      5       ///<  Autonegotiation link parter ability register
+
+#define PHY_PHYSR                       0x11
+  #define PHYSR_SPEED_MASK                0xC000
+  #define PHYSR_1000                      0x8000
+  #define PHYSR_100                       0x4000
+  #define PHYSR_FULLDUP                   0x2000
+  #define PHYSR_LINK                      0x400
+
+EFI_STATUS
+Ax88179PhyRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN OUT UINT16 * pPhyData
+  );
+
+EFI_STATUS
+Ax88179PhyWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN UINT16 PhyData
+  );
+
+EFI_STATUS
+Ax88179MacRead (
+  IN  UINT8 Offset,
+  IN  UINT8 Length,
+  IN  NIC_DEVICE * pNicDevice,
+  IN  OUT  VOID * pData
+  );
+
+EFI_STATUS
+Ax88179SetIInInterval (
+  IN  NIC_DEVICE * pNicDevice,
+  IN  UINT8 Offset
+  );
+
+EFI_STATUS
+Ax88179MacWrite (
+  IN  UINT8 Offset,
+  IN  UINT8 Length,
+  IN  NIC_DEVICE * pNicDevice,
+  IN  OUT  VOID * pData
+  );
+
+EFI_STATUS
+Ax88179MacAddressGet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  );
+
+EFI_STATUS
+Ax88179MacAddressSet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  );
+
+BOOLEAN
+Ax88179GetLinkStatus (
+  IN NIC_DEVICE * pNicDevice
+);
+
+EFI_STATUS
+Ax88179BulkIn(
+  IN NIC_DEVICE * pNicDevice
+);
+
+
+#endif  //  _AX88179_H_
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
new file mode 100644
index 000000000000..7b2db9b74285
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
@@ -0,0 +1,1026 @@
+ /** @file
+  Implement the interface to the AX88179 Ethernet controller.
+
+  This module implements the interface to the ASIX AX88179
+  USB to Ethernet MAC with integrated 10/100 PHY.  Note that this implementation
+  only supports the integrated PHY since no other test cases were available.
+
+  Copyright (c) 2011, Intel Corporation
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88179.h"
+
+
+/**
+  Compute the CRC
+
+  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
+
+  @returns The CRC-32 value associated with this MAC address
+
+**/
+UINT32
+Ax88179Crc (
+  IN UINT8 * pMacAddress
+  )
+{
+  UINT32 BitNumber;
+  INT32 Carry;
+  INT32 Crc;
+  UINT32 Data;
+  UINT8 * pEnd;
+
+  //
+  //  Walk the MAC address
+  //
+  Crc = -1;
+  pEnd = &pMacAddress[ PXE_HWADDR_LEN_ETHER ];
+  while ( pEnd > pMacAddress ) {
+    Data = *pMacAddress++;
+
+
+    //
+    //  CRC32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
+    //
+    //          1 0000 0100 1100 0001 0001 1101 1011 0111
+    //
+    for ( BitNumber = 0; 8 > BitNumber; BitNumber++ ) {
+      Carry = (( Crc >> 31 ) & 1 ) ^ ( Data & 1 );
+      Crc <<= 1;
+      if ( 0 != Carry ) {
+        Crc ^= 0x04c11db7;
+      }
+      Data >>= 1;
+    }
+  }
+
+  //
+  //  Return the CRC value
+  //
+  return (UINT32) Crc;
+}
+
+/**
+  Get the MAC address
+
+  This routine calls ::Ax88179UsbCommand to request the MAC
+  address from the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88179MacAddressGet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  )
+{
+  EFI_STATUS Status;
+
+  Status  = Ax88179MacRead (NODE_ID,
+                            PXE_HWADDR_LEN_ETHER,
+                            pNicDevice,
+                            pMacAddress);
+
+  return Status;
+}
+
+/**
+  Set the MAC address
+
+  This routine calls ::Ax88179UsbCommand to set the MAC address
+  in the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the new MAC address.
+
+  @retval EFI_SUCCESS          The MAC address was set.
+  @retval other                The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88179MacAddressSet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  )
+{
+  EFI_STATUS Status;
+
+  Status  = Ax88179MacWrite (NODE_ID,
+                             PXE_HWADDR_LEN_ETHER,
+                             pNicDevice,
+                             pMacAddress);
+
+  return Status;
+}
+
+/**
+  Clear the multicast hash table
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88179MulticastClear (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  int i = 0;
+  //
+  // Clear the multicast hash table
+  //
+
+  for ( i = 0 ; i < 8 ; i++ )
+      pNicDevice->MulticastHash[i] = 0;
+}
+/**
+  Enable a multicast address in the multicast hash table
+
+  This routine calls ::Ax88179Crc to compute the hash bit for
+  this MAC address.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
+
+**/
+VOID
+Ax88179MulticastSet (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 * pMacAddress
+  )
+{
+  UINT32 Crc;
+  //
+  // Compute the CRC on the destination address
+  //
+  Crc = Ax88179Crc (pMacAddress) >> 26;
+  //
+  //  Set the bit corresponding to the destination address
+  //
+  pNicDevice->MulticastHash [ Crc >> 3 ] |= ( 1<< (Crc& 7));
+}
+
+/**
+  Start the link negotiation
+
+  This routine calls ::Ax88179PhyWrite to start the PHY's link
+  negotiation.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The link negotiation was started.
+  @retval other                Failed to start the link negotiation.
+
+**/
+EFI_STATUS
+Ax88179NegotiateLinkStart (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  UINT16 Control = 0;
+  EFI_STATUS Status;
+
+#if FORCE_100Mbps
+  Ax88179PhyRead ( pNicDevice,
+                   0x09,
+                   &Control );
+  Control &= 0xFCFF;
+  Ax88179PhyWrite ( pNicDevice, 0x09, Control );
+#endif
+
+  //
+  // Set the link speed and duplex
+  //
+  Control = BMCR_AUTONEGOTIATION_ENABLE
+          | BMCR_RESTART_AUTONEGOTIATION;
+  if ( pNicDevice->b1000Mbps ) {
+    Control |= BMCR_1000MBPS;
+  } else if ( pNicDevice->b100Mbps ) {
+    Control |= BMCR_100MBPS;
+  }
+
+  if ( pNicDevice->bFullDuplex ) {
+    Control |= BMCR_FULL_DUPLEX;
+  }
+  Status = Ax88179PhyWrite ( pNicDevice, PHY_BMCR, Control );
+  if (!EFI_ERROR(Status))
+    gBS->Stall(3000000);
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+/**
+  Complete the negotiation of the PHY link
+
+  This routine calls ::Ax88179PhyRead to determine if the
+  link negotiation is complete.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in, out] pPollCount  Address of number of times this routine was polled
+  @param [out] pbComplete      Address of boolean to receive complate status.
+  @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
+  @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
+  @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88179NegotiateLinkComplete (
+  IN NIC_DEVICE * pNicDevice,
+  IN OUT UINTN * pPollCount,
+  OUT BOOLEAN * pbComplete,
+  OUT BOOLEAN * pbLinkUp,
+  OUT BOOLEAN * pbHiSpeed,
+  OUT BOOLEAN * pbGigaSpeed,
+  OUT BOOLEAN * pbFullDuplex
+  )
+{
+  UINT16 PhyData;
+  EFI_STATUS  Status;
+
+  //
+  //  Determine if the link is up.
+  //
+  *pbComplete = FALSE;
+
+  //
+  //  Get the link status
+  //
+  Status = Ax88179PhyRead ( pNicDevice,
+                            PHY_PHYSR,
+                            &PhyData );
+
+  if ( !EFI_ERROR ( Status )) {
+    *pbLinkUp =  (BOOLEAN)( 0 != ( PhyData & PHYSR_LINK ));
+    if (*pbLinkUp) {
+      //
+      //  Determine if the autonegotiation is complete.
+      //
+      Status = Ax88179PhyRead ( pNicDevice,
+                            PHY_BMSR,
+                            &PhyData );
+      if ( !EFI_ERROR (Status)) {
+          *pbComplete =  (BOOLEAN)( 0 != ( PhyData & BMSR_AUTONEG_CMPLT ));
+
+          if ( 0 != *pbComplete ) {
+            //
+            //  Get the partners capabilities.
+            //
+            Status = Ax88179PhyRead ( pNicDevice,
+                                      PHY_PHYSR,
+                                      &PhyData );
+            if ( !EFI_ERROR ( Status )) {
+              //
+              //  Autonegotiation is complete
+              //  Determine the link speed.
+              //
+              *pbGigaSpeed = (BOOLEAN) (( PhyData & PHYSR_SPEED_MASK ) == PHYSR_1000 );
+              *pbHiSpeed = (BOOLEAN)(( PhyData & PHYSR_SPEED_MASK ) == PHYSR_100 );
+
+              //
+              //  Determine the link duplex.
+              //
+              *pbFullDuplex = (BOOLEAN)( (PhyData & PHYSR_FULLDUP) == PHYSR_FULLDUP);
+          }
+        }
+      }
+    }
+  }
+
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+
+/**
+  Read a register from the PHY
+
+  This routine calls ::Ax88179UsbCommand to read a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data is available.
+  @retval other                The PHY data is not valid.
+
+**/
+EFI_STATUS
+Ax88179PhyRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN OUT UINT16 * pPhyData
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Read the PHY register address.
+  //
+  SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+                       | USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = ACCESS_PHY;
+  SetupMsg.Value = pNicDevice->PhyId;
+  SetupMsg.Index = RegisterAddress;
+  SetupMsg.Length = sizeof ( *pPhyData );
+  Status = Ax88179UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               pPhyData );
+
+  //
+  //  Return the operation status.
+  //
+  return Status;
+}
+
+
+/**
+  Write to a PHY register
+
+  This routine calls ::Ax88179UsbCommand to write a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in] PhyData          Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data was written.
+  @retval other                Failed to wwrite the PHY register.
+
+**/
+EFI_STATUS
+Ax88179PhyWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN UINT16 PhyData
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Write the PHY register
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = ACCESS_PHY;
+  SetupMsg.Value = pNicDevice->PhyId;
+  SetupMsg.Index = RegisterAddress;
+  SetupMsg.Length = sizeof ( PhyData );
+  Status = Ax88179UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               &PhyData );
+  //
+  //  Return the operation status.
+  //
+  return Status;
+}
+
+
+/**
+  Reset the AX88179
+
+  This routine uses ::Ax88179UsbCommand to reset the network
+  adapter.  This routine also uses ::Ax88179PhyWrite to reset
+  the PHY.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88179Reset (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  EFI_STATUS Status;
+  UINT16  val;
+  UINT8 val8;
+
+  Status = Ax88179SetIInInterval(pNicDevice, 0xff);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val8 = 0;
+  Status  = Ax88179MacRead (PLSR,
+                            sizeof(val8),
+                            pNicDevice,
+                            &val8);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  if (val8 & PLSR_USB_SS)
+    pNicDevice->usbMaxPktSize = 1024;
+  else
+    pNicDevice->usbMaxPktSize = 512;
+
+  val = 0;
+  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
+                             sizeof (val),
+                             pNicDevice,
+                             &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  gBS->Stall ( 10000 );
+
+  val =  PHYPWRRSTCTL_IPRL;
+  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
+                             sizeof (val),
+                             pNicDevice,
+                             &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  gBS->Stall ( 200000 );
+
+  val = CLKSELECT_BCS | CLKSELECT_ACS;
+  Status = Ax88179MacWrite ( CLKSELECT,
+                             1,
+                             pNicDevice,
+                             &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  gBS->Stall ( 100000 );
+
+  val = 0x52;
+  Status = Ax88179MacWrite ( PAUSE_WATERLVL_HIGH,
+                             1,
+                             pNicDevice,
+                             &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val = 0x34;
+  Status = Ax88179MacWrite ( PAUSE_WATERLVL_LOW,
+                             1,
+                             pNicDevice,
+                             &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val = RXBINQCTRL_TIMEN | RXBINQCTRL_IFGEN | RXBINQCTRL_SIZEN;
+
+  Status =  Ax88179MacWrite ( RXBINQCTRL,
+                              0x01,
+                              pNicDevice,
+                              &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val = 0;
+  Status =  Ax88179MacWrite ( RXBINQTIMERL,
+                              0x01,
+                              pNicDevice,
+                              &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val = 0;
+  Status =  Ax88179MacWrite ( RXBINQTIMERH,
+                              0x01,
+                              pNicDevice,
+                              &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val = 12; //AX88179_BULKIN_SIZE_INK - 1;
+  Status =  Ax88179MacWrite ( RXBINQSIZE,
+                              0x01,
+                              pNicDevice,
+                              &val);
+
+  if (EFI_ERROR(Status)) goto err;
+
+  val = 0x0F;
+  Status =  Ax88179MacWrite ( RXBINQIFG,
+                              0x01,
+                              pNicDevice,
+                              &val);
+
+err:
+  return Status;
+}
+
+EFI_STATUS
+Ax88179RxControl (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 RxFilter
+  )
+{
+  UINT16 MediumStatus;
+  UINT16 RxControl = 0;
+  EFI_STATUS Status = EFI_SUCCESS;
+  //
+  // Enable the receiver if something is to be received
+  //
+  if ( 0 != RxFilter ) {
+    //
+    //  Enable the receiver
+    //
+    Status  = Ax88179MacRead (MEDIUMSTSMOD,
+                              sizeof ( MediumStatus ),
+                              pNicDevice,
+                              &MediumStatus);
+
+    if ( !EFI_ERROR ( Status ) && pNicDevice->CurMediumStatus != MediumStatus) {
+        MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
+        if ( pNicDevice->bFullDuplex ) {
+          MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD;
+        } else {
+          MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD);
+        }
+        if ( pNicDevice->b1000Mbps ) {
+          MediumStatus |= MEDIUMSTSMOD_GM;
+          MediumStatus |= MEDIUMSTSMOD_ENCK;
+          MediumStatus &= ~MEDIUMSTSMOD_PS;
+        } else {
+          MediumStatus &= ~MEDIUMSTSMOD_GM;
+          MediumStatus &= ~MEDIUMSTSMOD_ENCK;
+          if ( pNicDevice->b100Mbps ) {
+            MediumStatus |= MEDIUMSTSMOD_PS;
+          }  else {
+            MediumStatus &= ~MEDIUMSTSMOD_PS;
+          }
+        }
+        Status  = Ax88179MacWrite (MEDIUMSTSMOD,
+                                   sizeof ( MediumStatus ),
+                                   pNicDevice,
+                                   &MediumStatus);
+        if ( !EFI_ERROR ( Status ))
+          pNicDevice->CurMediumStatus = MediumStatus;
+    }
+  }
+
+  RxControl = RXCTL_SO | RXCTL_IPE;
+
+  //
+  //  Enable multicast if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
+    RxControl |= RXCTL_AM;
+    //
+    //  Update the multicast hash table
+    //
+    Status  = Ax88179MacWrite (MULCATFLTARRY,
+                               8,
+                               pNicDevice,
+                               &pNicDevice->MulticastHash );
+  }
+
+  //
+  //  Enable all multicast if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST )) {
+    RxControl |= RXCTL_AMALL;
+  }
+  //
+  //  Enable broadcast if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST )) {
+    RxControl |= RXCTL_AB;
+  }
+
+  //
+  //  Enable promiscuous mode if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS )) {
+    RxControl |= RXCTL_PRO;
+  }
+
+  //
+  //  Update the receiver control
+  //
+  if (pNicDevice->CurRxControl != RxControl) {
+    Status  = Ax88179MacWrite (RXCTL,
+                               0x02,
+                               pNicDevice,
+                               &RxControl);
+    if ( !EFI_ERROR ( Status ))
+      pNicDevice->CurRxControl = RxControl;
+  }
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+EFI_STATUS
+Ax88179ReloadSrom  (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_UNSUPPORTED;
+  return Status;
+
+}
+
+/**
+  Read an SROM location
+
+  This routine calls ::Ax88179UsbCommand to read data from the
+  SROM.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] Address          SROM address
+  @param [out] pData           Buffer to receive the data
+
+  @retval EFI_SUCCESS          The read was successful
+  @retval other                The read failed
+
+**/
+EFI_STATUS
+Ax88179SromRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  OUT UINT16 * pData
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_UNSUPPORTED;
+  return Status;
+}
+
+EFI_STATUS
+Ax88179EnableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_UNSUPPORTED;
+  return Status;
+}
+
+
+EFI_STATUS
+Ax88179DisableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_UNSUPPORTED;
+  return Status;
+}
+
+/**
+  Write an SROM location
+
+  This routine calls ::Ax88179UsbCommand to write data from the
+  SROM.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] Address          SROM address
+  @param [out] pData           Buffer of data to write
+
+  @retval EFI_SUCCESS          The write was successful
+  @retval other                The write failed
+
+**/
+EFI_STATUS
+Ax88179SromWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  IN UINT16 * pData
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_UNSUPPORTED;
+  return Status;
+}
+
+
+
+/**
+  Send a command to the USB device.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pRequest         Pointer to the request structure
+  @param [in, out] pBuffer     Data buffer address
+
+  @retval EFI_SUCCESS          The USB transfer was successful
+  @retval other                The USB transfer failed
+
+**/
+
+EFI_STATUS
+Ax88179UsbCommand (
+  IN NIC_DEVICE * pNicDevice,
+  IN USB_DEVICE_REQUEST * pRequest,
+  IN OUT VOID * pBuffer
+  )
+{
+
+  EFI_USB_DATA_DIRECTION Direction;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  EFI_STATUS Status = EFI_TIMEOUT;
+  UINT32 CmdStatus = EFI_USB_NOERROR;
+  int i;
+  //
+  // Determine the transfer direction
+  //
+  Direction = EfiUsbNoData;
+  if ( 0 != pRequest->Length ) {
+    Direction = ( 0 != ( pRequest->RequestType & USB_ENDPOINT_DIR_IN ))
+                        ? EfiUsbDataIn : EfiUsbDataOut;
+  }
+
+  //
+  // Issue the command
+  //
+  pUsbIo = pNicDevice->pUsbIo;
+
+  for ( i = 0 ; i < 3 && EFI_TIMEOUT == Status; i++) {
+    Status = pUsbIo->UsbControlTransfer ( pUsbIo,
+                                        pRequest,
+                                        Direction,
+                                        USB_BUS_TIMEOUT,
+                                        pBuffer,
+                                        pRequest->Length,
+                                        &CmdStatus );
+  }
+  //
+  // Determine the operation status
+  //
+  if (EFI_ERROR(Status) || EFI_ERROR(CmdStatus))
+    Status = EFI_DEVICE_ERROR;
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+EFI_STATUS
+Ax88179MacRead (
+  IN  UINT8 Offset,
+  IN  UINT8 Length,
+  IN  NIC_DEVICE * pNicDevice,
+  IN  OUT  VOID * pData
+  )
+{
+
+  EFI_STATUS Status;
+  USB_DEVICE_REQUEST SetupMsg;
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE
+                       | USB_ENDPOINT_DIR_IN;
+
+  SetupMsg.Request = ACCESS_MAC;
+  SetupMsg.Value  = Offset;
+  SetupMsg.Index  = Length;
+  SetupMsg.Length = SetupMsg.Index;
+
+  Status = Ax88179UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               pData );
+
+  return Status;
+
+}
+
+EFI_STATUS
+Ax88179MacWrite (
+  IN  UINT8 Offset,
+  IN  UINT8 Length,
+  IN  NIC_DEVICE * pNicDevice,
+  IN  OUT  VOID * pData
+  )
+{
+
+  EFI_STATUS Status;
+  USB_DEVICE_REQUEST SetupMsg;
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+
+  SetupMsg.Request = ACCESS_MAC;
+  SetupMsg.Value  = Offset;
+  SetupMsg.Index  = Length;
+  SetupMsg.Length = SetupMsg.Index;
+
+  Status = Ax88179UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               pData );
+
+  return Status;
+
+}
+
+EFI_STATUS
+Ax88179SetIInInterval (
+  IN  NIC_DEVICE * pNicDevice,
+  IN  UINT8 Interval
+  )
+{
+
+  EFI_STATUS Status;
+  USB_DEVICE_REQUEST SetupMsg;
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+
+  SetupMsg.Request = 0x91;
+  SetupMsg.Value  = Interval;
+  SetupMsg.Index  = 0;
+  SetupMsg.Length = 0;
+
+  Status = Ax88179UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  return Status;
+
+}
+
+EFI_STATUS
+Ax88179SetMedium (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  UINT16 MediumStatus;
+  EFI_STATUS Status;
+
+  MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
+  if ( pNicDevice->bFullDuplex ) {
+    MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD;
+  } else {
+    MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD);
+  }
+  if ( pNicDevice->b1000Mbps ) {
+    MediumStatus |= MEDIUMSTSMOD_GM;
+    MediumStatus &= ~MEDIUMSTSMOD_PS;
+  } else {
+    MediumStatus &= ~MEDIUMSTSMOD_GM;
+    if ( pNicDevice->b100Mbps ) {
+      MediumStatus |= MEDIUMSTSMOD_PS;
+    } else {
+      MediumStatus &= ~MEDIUMSTSMOD_PS;
+    }
+  }
+  Status  = Ax88179MacWrite (MEDIUMSTSMOD,
+                             sizeof ( MediumStatus ),
+                             pNicDevice,
+                             &MediumStatus);
+  if ( !EFI_ERROR ( Status ))
+  pNicDevice->CurMediumStatus = MediumStatus;
+
+  return Status;
+}
+
+
+BOOLEAN
+Ax88179GetLinkStatus (
+  IN NIC_DEVICE * pNicDevice
+)
+{
+  UINT32 CmdStatus;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  UINT64    IntData = 0;
+  UINTN     IntDataLeng = 8;
+  EFI_STATUS Status;
+
+  //
+  // Issue the command
+  //
+  pUsbIo = pNicDevice->pUsbIo;
+  Status = pUsbIo->UsbSyncInterruptTransfer( pUsbIo,
+                                        USB_ENDPOINT_DIR_IN | INTERRUPT_ENDPOINT,
+                                        &IntData,
+                                        &IntDataLeng,
+                                        USB_BUS_TIMEOUT,
+                                        &CmdStatus );
+
+  if ( EFI_ERROR(Status) || EFI_ERROR(CmdStatus) || 0 == IntDataLeng)
+    return FALSE;
+
+  return (IntData & 0x10000)? TRUE : FALSE;
+
+}
+
+EFI_STATUS
+Ax88179BulkIn(
+  IN NIC_DEVICE * pNicDevice
+)
+{
+  int i;
+  UINT16  val;
+  UINTN LengthInBytes = 0;
+  UINTN TMP_LENG = AX88179_MAX_BULKIN_SIZE;
+  UINTN CURBufSize = AX88179_MAX_BULKIN_SIZE;
+  UINTN PREBufSize = 0;
+  EFI_STATUS Status = EFI_NOT_READY;
+  EFI_USB_IO_PROTOCOL *pUsbIo;
+  UINT32 TransferStatus;
+
+  pNicDevice->SkipRXCnt = 0;
+
+  pUsbIo = pNicDevice->pUsbIo;
+  for ( i = 0 ; i < (AX88179_MAX_BULKIN_SIZE / 512) && pUsbIo != NULL; i++) {
+    VOID* tmpAddr = 0;
+
+    if (pNicDevice->bSetZeroLen) {
+      val =  PHYPWRRSTCTL_IPRL | PHYPWRRSTCTL_BZ;
+      Status = Ax88179MacWrite ( PHYPWRRSTCTL,
+                                 sizeof (val),
+                                 pNicDevice,
+                                 &val);
+      if (EFI_ERROR(Status)) {
+        LengthInBytes = 0;
+        Status = EFI_NOT_READY;
+        goto no_pkt;
+      }
+      pNicDevice->bSetZeroLen = FALSE;
+    }
+    tmpAddr = (VOID*) &pNicDevice->pBulkInbuf[LengthInBytes];
+
+    Status =  EFI_NOT_READY;
+    Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
+                          USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
+                          tmpAddr,
+                          &TMP_LENG,
+                          BULKIN_TIMEOUT,
+                          &TransferStatus );
+
+    if (( !EFI_ERROR ( Status )) && ( !EFI_ERROR ( TransferStatus )) && TMP_LENG != 0) {
+      LengthInBytes += TMP_LENG;
+      if ((TMP_LENG % pNicDevice->usbMaxPktSize) != 0) {
+        goto done;
+      }
+      CURBufSize = CURBufSize - TMP_LENG;
+      TMP_LENG = CURBufSize;
+      pNicDevice->bSetZeroLen = TRUE;
+    } else if (( !EFI_ERROR ( Status )) &&
+               ( !EFI_ERROR ( TransferStatus )) &&
+               ( TMP_LENG == 0) &&
+               LengthInBytes) {
+      if (PREBufSize == CURBufSize) {
+        goto done;
+      }
+      TMP_LENG = CURBufSize;
+      PREBufSize = CURBufSize;
+      pNicDevice->bSetZeroLen = TRUE;
+    } else if (( !EFI_ERROR ( Status )) &&
+               ( !EFI_ERROR ( TransferStatus )) &&
+               ( TMP_LENG == 0)) {
+      pNicDevice->bSetZeroLen = TRUE;
+      LengthInBytes = 0;
+      Status = EFI_NOT_READY;
+      goto done;
+    } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT == TransferStatus) {
+      pNicDevice->bSetZeroLen = TRUE;
+      LengthInBytes = 0;
+      Status = EFI_NOT_READY;
+      goto done;
+    } else {
+      pNicDevice->bSetZeroLen = TRUE;
+      LengthInBytes = 0;
+      Status = EFI_NOT_READY;
+      goto done;
+    }
+  }
+
+done:
+  if (LengthInBytes != 0) {
+    UINT16 tmplen = 0;
+    UINT16 tmpPktCnt = 0;
+
+    tmpPktCnt = *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes - 4));
+    tmplen =  *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2));
+
+    if (((UINTN)(((tmpPktCnt * 4 + 4 + 7) & 0xfff8) + tmplen)) == LengthInBytes) {
+      pNicDevice->PktCnt = tmpPktCnt;
+      pNicDevice->pCurPktHdrOff = pNicDevice->pBulkInbuf + tmplen;
+      pNicDevice->pCurPktOff = pNicDevice->pBulkInbuf;
+      *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes - 4)) = 0;
+      *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2)) = 0;
+      Status = EFI_SUCCESS;
+    } else {
+      Status = EFI_NOT_READY;
+    }
+  } else {
+    Status = EFI_NOT_READY;
+  }
+no_pkt:
+   return Status;
+}
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c
new file mode 100644
index 000000000000..bb7ea146be02
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c
@@ -0,0 +1,290 @@
+/** @file
+  UEFI Component Name(2) protocol implementation.
+
+  Copyright (c) 2011, Intel Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88179.h"
+
+/**
+  EFI Component Name Protocol declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gComponentName = {
+  GetDriverName,
+  GetControllerName,
+  "eng"
+};
+
+/**
+  EFI Component Name 2 Protocol declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
+  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) GetDriverName,
+  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) GetControllerName,
+  "en"
+};
+
+
+/**
+  Driver name table declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
+mDriverNameTable[] = {
+  {"eng;en", L"ASIX AX88179 Ethernet Driver 2.9.0"},
+  {NULL,  NULL}
+};
+
+/**
+  Controller name table declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
+mControllerNameTable[] = {
+  {"eng;en", L"AX88179 USB3.0 Gigabit Ethernet Controller"},
+  {NULL,  NULL}
+};
+
+/**
+  Retrieves a Unicode string that is the user readable name of the driver.
+
+  This function retrieves the user readable name of a driver in the form of a
+  Unicode string. If the driver specified by This has a user readable name in
+  the language specified by Language, then a pointer to the driver name is
+  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+  by This does not support the language specified by Language,
+  then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language. This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified
+                                in RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppDriverName     A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                driver specified by This in the language
+                                specified by Language.
+
+  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
+                                This and the language specified by Language was
+                                returned in DriverName.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER DriverName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+GetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppDriverName
+  )
+{
+  EFI_STATUS Status;
+
+
+  Status = LookupUnicodeString2 (
+             pLanguage,
+             pThis->SupportedLanguages,
+             mDriverNameTable,
+             ppDriverName,
+             (BOOLEAN)(pThis == &gComponentName)
+             );
+
+  return Status;
+}
+
+/**
+  Retrieves a Unicode string that is the user readable name of the controller
+  that is being managed by a driver.
+
+  This function retrieves the user readable name of the controller specified by
+  ControllerHandle and ChildHandle in the form of a Unicode string. If the
+  driver specified by This has a user readable name in the language specified by
+  Language, then a pointer to the controller name is returned in ControllerName,
+  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
+  managing the controller specified by ControllerHandle and ChildHandle,
+  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
+  support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] ControllerHandle  The handle of a controller that the driver
+                                specified by This is managing.  This handle
+                                specifies the controller whose name is to be
+                                returned.
+  @param [in] ChildHandle       The handle of the child controller to retrieve
+                                the name of.  This is an optional parameter that
+                                may be NULL.  It will be NULL for device
+                                drivers.  It will also be NULL for a bus drivers
+                                that wish to retrieve the name of the bus
+                                controller.  It will not be NULL for a bus
+                                driver that wishes to retrieve the name of a
+                                child controller.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language.  This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified in
+                                RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppControllerName A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                controller specified by ControllerHandle and
+                                ChildHandle in the language specified by
+                                Language from the point of view of the driver
+                                specified by This.
+
+  @retval EFI_SUCCESS           The Unicode string for the user readable name in
+                                the language specified by Language for the
+                                driver specified by This was returned in
+                                DriverName.
+  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+                                EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
+                                managing the controller specified by
+                                ControllerHandle and ChildHandle.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+
+
+
+#if PASS_SCT
+EFI_STATUS
+EFIAPI
+GetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  EFI_HANDLE ControllerHandle,
+  IN OPTIONAL EFI_HANDLE ChildHandle,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppControllerName
+  )
+{
+
+  EFI_STATUS                  Status;
+  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
+
+  //
+  // This is a device driver, so ChildHandle must be NULL.
+  //
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Check Controller's handle
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &UsbIoProtocol,
+                  gDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (!EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+           ControllerHandle,
+           &gEfiUsbIoProtocolGuid,
+           gDriverBinding.DriverBindingHandle,
+           ControllerHandle
+           );
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Status != EFI_ALREADY_STARTED) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Status =  LookupUnicodeString2 (
+           pLanguage,
+            pThis->SupportedLanguages,
+           mControllerNameTable,
+           ppControllerName,
+           (BOOLEAN)(pThis == &gComponentName)
+           );
+
+  return  Status;
+}
+#else
+
+EFI_STATUS
+EFIAPI
+GetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  EFI_HANDLE ControllerHandle,
+  IN OPTIONAL EFI_HANDLE ChildHandle,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppControllerName
+  )
+{
+  EFI_STATUS Status;
+  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
+  EFI_USB_DEVICE_DESCRIPTOR Device;
+
+  //
+  //  Connect to the USB stack
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &UsbIoProtocol,
+                  gDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+
+
+  if (!EFI_ERROR ( Status )) {
+      Status = UsbIoProtocol->UsbGetDeviceDescriptor ( UsbIoProtocol, &Device );
+      if (EFI_ERROR(Status)) {
+        Status = EFI_UNSUPPORTED;
+      } else {
+          //
+          //  Validate the adapter
+          //
+          if (( VENDOR_ID == Device.IdVendor )
+            && ( PRODUCT_ID == Device.IdProduct )) {
+            *ppControllerName = L"AX88179 USB3.0 Gigabit Ethernet Controller";
+            Status = EFI_SUCCESS;
+          } else if (( VENDOR_ID == Device.IdVendor )
+            && ( PRODUCT_ID_178A == Device.IdProduct )) {
+            *ppControllerName = L"AX88178A USB2.0 Gigabit Ethernet Controller";
+            Status = EFI_SUCCESS;
+          } else {
+            Status = EFI_UNSUPPORTED;
+          }
+
+      }
+
+      gBS->CloseProtocol (
+               ControllerHandle,
+               &gEfiUsbIoProtocolGuid,
+               gDriverBinding.DriverBindingHandle,
+               ControllerHandle
+               );
+  }
+  //
+  // Return the operation status
+  //
+  if (Status != EFI_SUCCESS) {
+    *ppControllerName = L"AX88179_178A Gigabit Ethernet Controller";
+        Status = EFI_SUCCESS;
+  }
+  return Status;
+}
+
+#endif
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
new file mode 100644
index 000000000000..826a539e3f34
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
@@ -0,0 +1,620 @@
+/** @file
+  Implement the driver binding protocol for Asix AX88179 Ethernet driver.
+
+  Copyright (c) 2011, Intel Corporation
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88179.h"
+
+/**
+  Verify the controller type
+
+  @param [in] pThis                Protocol instance pointer.
+  @param [in] Controller           Handle of device to test.
+  @param [in] pRemainingDevicePath Not used.
+
+  @retval EFI_SUCCESS          This driver supports this device.
+  @retval other                This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+DriverSupported (
+  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
+  IN EFI_HANDLE Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
+  )
+{
+  EFI_USB_DEVICE_DESCRIPTOR Device;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  EFI_STATUS Status;
+
+  //
+  //  Connect to the USB stack
+  //
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &pUsbIo,
+                  pThis->DriverBindingHandle,
+                  Controller,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (!EFI_ERROR ( Status )) {
+
+    //
+    //  Get the interface descriptor to check the USB class and find a transport
+    //  protocol handler.
+    //
+    Status = pUsbIo->UsbGetDeviceDescriptor ( pUsbIo, &Device );
+    if (EFI_ERROR(Status)) {
+      Status = EFI_UNSUPPORTED;
+    } else {
+      //
+      //  Validate the adapter
+      //
+      if (( VENDOR_ID == Device.IdVendor ) &&
+          ( PRODUCT_ID == Device.IdProduct )) {
+        Status = EFI_SUCCESS;
+      } else if (( VENDOR_ID == Device.IdVendor ) &&
+                 ( PRODUCT_ID_178A == Device.IdProduct )) {
+        Status = EFI_SUCCESS;
+      } else {
+        Status = EFI_UNSUPPORTED;
+      }
+    }
+    gBS->CloseProtocol (
+           Controller,
+           &gEfiUsbIoProtocolGuid,
+           pThis->DriverBindingHandle,
+           Controller
+           );
+  }
+
+  //
+  //  Return the device supported status
+  //
+
+  return Status;
+}
+
+
+/**
+  Start this driver on Controller by opening UsbIo and DevicePath protocols.
+  Initialize PXE structures, create a copy of the Controller Device Path with the
+  NIC's MAC address appended to it, install the NetworkInterfaceIdentifier protocol
+  on the newly created Device Path.
+
+  @param [in] pThis                Protocol instance pointer.
+  @param [in] Controller           Handle of device to work with.
+  @param [in] pRemainingDevicePath Not used, always produce all possible children.
+
+  @retval EFI_SUCCESS          This driver is added to Controller.
+  @retval other                This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+DriverStart (
+  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
+  IN EFI_HANDLE Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
+  )
+{
+  EFI_STATUS Status;
+  NIC_DEVICE *pNicDevice;
+  UINTN LengthInBytes;
+  EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath = NULL;
+  MAC_ADDR_DEVICE_PATH MacDeviceNode;
+
+  //
+  //  Allocate the device structure
+  //
+  LengthInBytes = sizeof ( *pNicDevice );
+  Status = gBS->AllocatePool (
+                  EfiRuntimeServicesData,
+                  LengthInBytes,
+                  (VOID **) &pNicDevice
+                  );
+
+  if (EFI_ERROR (Status)) {
+    goto ERR;
+  }
+
+  //
+  //  Set the structure signature
+  //
+  ZeroMem ( pNicDevice, LengthInBytes );
+  pNicDevice->Signature = DEV_SIGNATURE;
+
+  Status = gBS->OpenProtocol (
+                    Controller,
+                    &gEfiUsbIoProtocolGuid,
+                    (VOID **) &pNicDevice->pUsbIo,
+                    pThis->DriverBindingHandle,
+                    Controller,
+                    EFI_OPEN_PROTOCOL_BY_DRIVER
+                    );
+
+  if (EFI_ERROR (Status)) {
+    goto ERR;
+  }
+
+  //
+  //  Initialize the simple network protocol
+  //
+  Status = SN_Setup ( pNicDevice );
+
+  if (EFI_ERROR(Status)){
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+  //
+  // Set Device Path
+  //
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **) &ParentDevicePath,
+                  pThis->DriverBindingHandle,
+                  Controller,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR(Status)) {
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+
+  ZeroMem (&MacDeviceNode, sizeof (MAC_ADDR_DEVICE_PATH));
+  MacDeviceNode.Header.Type = MESSAGING_DEVICE_PATH;
+  MacDeviceNode.Header.SubType = MSG_MAC_ADDR_DP;
+
+  SetDevicePathNodeLength (&MacDeviceNode.Header, sizeof (MAC_ADDR_DEVICE_PATH));
+
+  CopyMem (&MacDeviceNode.MacAddress,
+           &pNicDevice->SimpleNetworkData.CurrentAddress,
+           PXE_HWADDR_LEN_ETHER);
+
+  MacDeviceNode.IfType = pNicDevice->SimpleNetworkData.IfType;
+
+  pNicDevice->MyDevPath = AppendDevicePathNode (
+                                          ParentDevicePath,
+                                          (EFI_DEVICE_PATH_PROTOCOL *) &MacDeviceNode
+                                          );
+  pNicDevice->Controller = NULL;
+
+  //
+  //  Install both the simple network and device path protocols.
+  //
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                          &pNicDevice->Controller,
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+
+  if (EFI_ERROR(Status)){
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiDevicePathProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller);
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+
+  //
+  // Open For Child Device
+  //
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &pNicDevice->pUsbIo,
+                  pThis->DriverBindingHandle,
+                  pNicDevice->Controller,
+                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                  );
+
+  if (EFI_ERROR(Status)){
+    gBS->UninstallMultipleProtocolInterfaces (
+                          &pNicDevice->Controller,
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiDevicePathProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller);
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+
+  return Status;
+
+
+ERR:
+
+  if ( NULL != pNicDevice->pBulkInbuf)
+    gBS->FreePool (pNicDevice->pBulkInbuf);
+  if ( NULL != pNicDevice->pTxTest)
+    gBS->FreePool (pNicDevice->pTxTest);
+  if ( NULL != pNicDevice->MyDevPath)
+    gBS->FreePool (pNicDevice->MyDevPath);
+  if (NULL != pNicDevice)
+    gBS->FreePool ( pNicDevice );
+  return Status;
+
+}
+
+/**
+  Stop this driver on Controller by removing NetworkInterfaceIdentifier protocol and
+  closing the DevicePath and PciIo protocols on Controller.
+
+  @param [in] pThis                Protocol instance pointer.
+  @param [in] Controller           Handle of device to stop driver on.
+  @param [in] NumberOfChildren     How many children need to be stopped.
+  @param [in] pChildHandleBuffer   Not used.
+
+  @retval EFI_SUCCESS          This driver is removed Controller.
+  @retval EFI_DEVICE_ERROR     The device could not be stopped due to a device error.
+  @retval other                This driver was not removed from this device.
+
+**/
+EFI_STATUS
+EFIAPI
+DriverStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL * pThis,
+  IN  EFI_HANDLE Controller,
+  IN  UINTN NumberOfChildren,
+  IN  EFI_HANDLE * ChildHandleBuffer
+  )
+{
+  BOOLEAN AllChildrenStopped;
+  EFI_SIMPLE_NETWORK_PROTOCOL *SimpleNetwork;
+  EFI_STATUS Status = EFI_SUCCESS;
+  NIC_DEVICE *pNicDevice;
+  UINTN Index;
+
+  //
+  // Complete all outstanding transactions to Controller.
+  // Don't allow any new transaction to Controller to be started.
+  //
+  if (NumberOfChildren == 0) {
+    Status = gBS->OpenProtocol (
+                      Controller,
+                      &gEfiSimpleNetworkProtocolGuid,
+                      (VOID **) &SimpleNetwork,
+                      pThis->DriverBindingHandle,
+                      Controller,
+                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                      );
+
+    if (EFI_ERROR(Status)) {
+      //
+      // This is a 2nd type handle(multi-lun root), it needs to close devicepath
+      // and usbio protocol.
+      //
+      gBS->CloseProtocol (
+                Controller,
+                &gEfiDevicePathProtocolGuid,
+                pThis->DriverBindingHandle,
+                Controller
+                );
+      gBS->CloseProtocol (
+                Controller,
+                &gEfiUsbIoProtocolGuid,
+                pThis->DriverBindingHandle,
+                Controller
+                );
+      return EFI_SUCCESS;
+    }
+
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
+
+    Status = gBS->UninstallMultipleProtocolInterfaces (
+                          Controller,
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+    //
+    // Close the bus driver
+    //
+    Status = gBS->CloseProtocol (
+                        Controller,
+                        &gEfiDevicePathProtocolGuid,
+                        pThis->DriverBindingHandle,
+                        Controller
+                        );
+
+    Status = gBS->CloseProtocol (
+                        Controller,
+                        &gEfiUsbIoProtocolGuid,
+                        pThis->DriverBindingHandle,
+                        Controller
+                        );
+    return EFI_SUCCESS;
+  }
+
+  AllChildrenStopped = TRUE;
+
+  for (Index = 0; Index < NumberOfChildren; Index++) {
+    Status = gBS->OpenProtocol (
+                      ChildHandleBuffer[Index],
+                      &gEfiSimpleNetworkProtocolGuid,
+                      (VOID **) &SimpleNetwork,
+                      pThis->DriverBindingHandle,
+                      Controller,
+                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                      );
+
+    if (EFI_ERROR (Status)) {
+      AllChildrenStopped = FALSE;
+      continue;
+    }
+
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
+
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              ChildHandleBuffer[Index]
+              );
+
+    Status = gBS->UninstallMultipleProtocolInterfaces (
+                          ChildHandleBuffer[Index],
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+
+    if (EFI_ERROR (Status)) {
+      Status = gBS->OpenProtocol (
+                        Controller,
+                        &gEfiUsbIoProtocolGuid,
+                        (VOID **) &pNicDevice->pUsbIo,
+                        pThis->DriverBindingHandle,
+                        ChildHandleBuffer[Index],
+                        EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                        );
+    } else {
+      if ( NULL != pNicDevice->pBulkInbuf)
+        gBS->FreePool (pNicDevice->pBulkInbuf);
+      if ( NULL != pNicDevice->pTxTest)
+        gBS->FreePool (pNicDevice->pTxTest);
+      if ( NULL != pNicDevice->MyDevPath)
+        gBS->FreePool (pNicDevice->MyDevPath);
+      if ( NULL != pNicDevice)
+        gBS->FreePool (pNicDevice);
+    }
+  }
+
+  if (!AllChildrenStopped) {
+    return EFI_DEVICE_ERROR;
+  }
+
+  return EFI_SUCCESS;
+}
+
+
+/**
+  Driver binding protocol declaration
+**/
+EFI_DRIVER_BINDING_PROTOCOL  gDriverBinding = {
+  DriverSupported,
+  DriverStart,
+  DriverStop,
+  0xa,
+  NULL,
+  NULL
+};
+
+
+/**
+  Ax88179 driver unload routine.
+
+  @param [in] ImageHandle       Handle for the image.
+
+  @retval EFI_SUCCESS           Image may be unloaded
+
+**/
+EFI_STATUS
+EFIAPI
+DriverUnload (
+  IN EFI_HANDLE ImageHandle
+  )
+{
+  UINTN BufferSize;
+  UINTN Index;
+  UINTN Max;
+  EFI_HANDLE * pHandle;
+  EFI_STATUS Status;
+
+  //
+  //  Determine which devices are using this driver
+  //
+  BufferSize = 0;
+  pHandle = NULL;
+  Status = gBS->LocateHandle (
+                  ByProtocol,
+                  &gEfiCallerIdGuid,
+                  NULL,
+                  &BufferSize,
+                  NULL );
+  if ( EFI_BUFFER_TOO_SMALL == Status ) {
+    for ( ; ; ) {
+      //
+      //  One or more block IO devices are present
+      //
+      Status = gBS->AllocatePool (
+                      EfiRuntimeServicesData,
+                      BufferSize,
+                      (VOID **) &pHandle
+                      );
+      if ( EFI_ERROR ( Status )) {
+        break;
+      }
+
+      //
+      //  Locate the block IO devices
+      //
+      Status = gBS->LocateHandle (
+                      ByProtocol,
+                      &gEfiCallerIdGuid,
+                      NULL,
+                      &BufferSize,
+                      pHandle );
+      if ( EFI_ERROR ( Status )) {
+        //
+        //  Error getting handles
+        //
+
+        break;
+      }
+
+      //
+      //  Remove any use of the driver
+      //
+      Max = BufferSize / sizeof ( pHandle[ 0 ]);
+      for ( Index = 0; Max > Index; Index++ ) {
+        Status = DriverStop ( &gDriverBinding,
+                              pHandle[ Index ],
+                              0,
+                              NULL );
+        if ( EFI_ERROR ( Status )) {
+          break;
+        }
+      }
+      break;
+    }
+  } else {
+    if ( EFI_NOT_FOUND == Status ) {
+      //
+      //  No devices were found
+      //
+      Status = EFI_SUCCESS;
+    }
+  }
+
+  //
+  //  Free the handle array
+  //
+  if ( NULL != pHandle ) {
+    gBS->FreePool ( pHandle );
+  }
+
+  //
+  //  Remove the protocols installed by the EntryPoint routine.
+  //
+  if ( !EFI_ERROR ( Status )) {
+    gBS->UninstallMultipleProtocolInterfaces (
+            ImageHandle,
+            &gEfiDriverBindingProtocolGuid,
+            &gDriverBinding,
+            &gEfiComponentNameProtocolGuid,
+            &gComponentName,
+            &gEfiComponentName2ProtocolGuid,
+            &gComponentName2,
+            NULL
+            );
+  }
+
+  //
+  //  Return the unload status
+  //
+
+  return Status;
+}
+
+
+/**
+Ax88179 driver entry point.
+
+@param [in] ImageHandle       Handle for the image.
+@param [in] pSystemTable      Address of the system table.
+
+@retval EFI_SUCCESS           Image successfully loaded.
+
+**/
+EFI_STATUS
+EFIAPI
+EntryPoint (
+  IN EFI_HANDLE ImageHandle,
+  IN EFI_SYSTEM_TABLE * pSystemTable
+  )
+{
+  EFI_LOADED_IMAGE_PROTOCOL * pLoadedImage;
+  EFI_STATUS    Status;
+
+
+  //
+  //  Enable unload support
+  //
+  Status = gBS->HandleProtocol (
+                  gImageHandle,
+                  &gEfiLoadedImageProtocolGuid,
+                  (VOID **)&pLoadedImage
+                  );
+  if (!EFI_ERROR (Status)) {
+    pLoadedImage->Unload = DriverUnload;
+  }
+
+  //
+  //  Add the driver to the list of drivers
+  //
+  Status = EfiLibInstallDriverBindingComponentName2 (
+             ImageHandle,
+             pSystemTable,
+             &gDriverBinding,
+             ImageHandle,
+             &gComponentName,
+             &gComponentName2
+             );
+
+  return Status;
+}
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
new file mode 100644
index 000000000000..25986451dcbc
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
@@ -0,0 +1,1585 @@
+/** @file
+  Provides the Simple Network functions.
+
+  Copyright (c) 2011, Intel Corporation
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88179.h"
+
+/**
+  This function updates the filtering on the receiver.
+
+  This support routine calls ::Ax88179MacAddressSet to update
+  the MAC address.  This routine then rebuilds the multicast
+  hash by calling ::Ax88179MulticastClear and ::Ax88179MulticastSet.
+  Finally this routine enables the receiver by calling
+  ::Ax88179RxControl.
+  @param [in] pSimpleNetwork    Simple network mode pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+ReceiveFilterUpdate (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_STATUS Status;
+  UINT32 Index;
+
+  //
+  // Set the MAC address
+  //
+  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+  pMode = pSimpleNetwork->Mode;
+  //
+  // Clear the multicast hash table
+  //
+  Ax88179MulticastClear ( pNicDevice );
+
+  //
+  // Load the multicast hash table
+  //
+  if ( 0 != ( pMode->ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
+    for ( Index = 0; Index < pMode->MCastFilterCount; Index++ ) {
+      //
+      // Enable the next multicast address
+      //
+      Ax88179MulticastSet ( pNicDevice,
+                            &pMode->MCastFilter[ Index ].Addr[0]);
+    }
+  }
+
+  //
+  // Enable the receiver
+  //
+  Status = Ax88179RxControl ( pNicDevice, pMode->ReceiveFilterSetting );
+
+  return Status;
+}
+
+
+/**
+  This function updates the SNP driver status.
+
+  This function gets the current interrupt and recycled transmit
+  buffer status from the network interface.  The interrupt status
+  and the media status are returned as a bit mask in InterruptStatus.
+  If InterruptStatus is NULL, the interrupt status will not be read.
+  Upon successful return of the media status, the MediaPresent field
+  of EFI_SIMPLE_NETWORK_MODE will be updated to reflect any change
+  of media status.  If TxBuf is not NULL, a recycled transmit buffer
+  address will be retrived.  If a recycled transmit buffer address
+  is returned in TxBuf, then the buffer has been successfully
+  transmitted, and the status for that buffer is cleared.
+
+  This function calls ::Ax88179Rx to update the media status and
+  queue any receive packets.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] pInterruptStatus  A pointer to the bit mask of the current active interrupts.
+                                If this is NULL, the interrupt status will not be read from
+                                the device.  If this is not NULL, the interrupt status will
+                                be read from teh device.  When the interrupt status is read,
+                                it will also be cleared.  Clearing the transmit interrupt
+                                does not empty the recycled transmit buffer array.
+  @param [out] ppTxBuf          Recycled transmit buffer address.  The network interface will
+                                not transmit if its internal recycled transmit buffer array is
+                                full.  Reading the transmit buffer does not clear the transmit
+                                interrupt.  If this is NULL, then the transmit buffer status
+                                will not be read.  If there are not transmit buffers to recycle
+                                and TxBuf is not NULL, *TxBuf will be set to NULL.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+
+EFI_STATUS
+EFIAPI
+SN_GetStatus (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  OUT UINT32 * pInterruptStatus,
+  OUT VOID ** ppTxBuf
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_STATUS Status = EFI_SUCCESS;
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Return the transmit buffer
+    //
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+    if (( NULL != ppTxBuf ) && ( NULL != pNicDevice->pTxBuffer )) {
+      *ppTxBuf = pNicDevice->pTxBuffer;
+      pNicDevice->pTxBuffer = NULL;
+    }
+
+    pMode = pSimpleNetwork->Mode;
+    if (EfiSimpleNetworkInitialized == pMode->State) {
+      if (NULL == ppTxBuf && NULL == pInterruptStatus) {
+        Status = EFI_INVALID_PARAMETER;
+        goto EXIT;
+      }
+#if REPORTLINK
+#else
+      if (!pNicDevice->bLinkUp || !pNicDevice->bComplete) {
+#endif
+        Status = Ax88179NegotiateLinkComplete ( pNicDevice,
+                                                &pNicDevice->PollCount,
+                                                &pNicDevice->bComplete,
+                                                &pNicDevice->bLinkUp,
+                                                &pNicDevice->b100Mbps,
+                                                &pNicDevice->b1000Mbps,
+                                                &pNicDevice->bFullDuplex );
+
+        if (EFI_ERROR(Status))
+          goto EXIT;
+#if REPORTLINK
+        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
+          pMode->MediaPresent = TRUE;
+          Status = Ax88179SetMedium (pNicDevice);
+        } else {
+          pMode->MediaPresent = FALSE;
+        }
+#else
+        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
+          pMode->MediaPresent = TRUE;
+          pMode->MediaPresentSupported = FALSE;
+          Status = Ax88179SetMedium (pNicDevice);
+
+        }
+      }
+#endif
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR; ;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  if ( NULL != pInterruptStatus ) {
+    *pInterruptStatus = 0;
+  }
+
+EXIT:
+  gBS->RestoreTPL(TplPrevious) ;
+
+  return Status;
+}
+
+/**
+  This function performs read and write operations on the NVRAM device
+  attached to a network interface.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] ReadWrite         TRUE for read operations, FALSE for write operations.
+  @param [in] Offset            Byte offset in the NVRAM device at which to start the
+                                read or write operation.  This must be a multiple of
+                                NvRamAccessSize and less than NvRamSize.
+  @param [in] BufferSize        The number of bytes to read or write from the NVRAM device.
+                                This must also be a multiple of NvramAccessSize.
+  @param [in, out] pBuffer      A pointer to the data buffer.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_NvData (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN ReadWrite,
+  IN UINTN Offset,
+  IN UINTN BufferSize,
+  IN OUT VOID * pBuffer
+  )
+{
+  EFI_STATUS Status = EFI_INVALID_PARAMETER;
+  EFI_TPL TplPrevious;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  if (( NULL == pSimpleNetwork ) || ( NULL == pSimpleNetwork->Mode )) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+  pMode = pSimpleNetwork->Mode;
+
+#if PASS_SCT
+  if (EfiSimpleNetworkInitialized != pMode->State) {
+    Status = EFI_NOT_STARTED;
+    goto  EXIT;
+  }
+#endif
+
+  if ( 0 != Offset ) {
+    if ((0 != (Offset % pMode->NvRamAccessSize) ) || (Offset >= pMode->NvRamSize)) {
+      Status = EFI_INVALID_PARAMETER;
+      goto  EXIT;
+    }
+  }
+  //
+  //Offset must be a multiple of NvRamAccessSize and less than NvRamSize.
+  //
+  if (0 != (BufferSize % pMode->NvRamAccessSize)) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  if (BufferSize + Offset > pMode->NvRamSize) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  if (NULL == pBuffer) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  //
+  //ReadWrite: TRUE FOR READ FALSE FOR WRITE
+  //
+  if (ReadWrite){
+    UINTN i;
+
+    for (i = 0; i < BufferSize / 2 ; i++) {
+      Status = Ax88179SromRead ( pNicDevice,
+                                 (UINT32)(Offset/2 + i),
+                                 (((UINT16*)pBuffer) + i));
+    }
+  } else {
+    UINTN i;
+
+    Status = Ax88179EnableSromWrite(pNicDevice);
+    if (EFI_ERROR(Status)) goto EXIT;
+
+    for (i = 0; i < BufferSize / 2 ; i++){
+      Status = Ax88179SromWrite ( pNicDevice,
+                                  (UINT32)(Offset/2 + i),
+                                  (((UINT16*)pBuffer) + i));
+    }
+    Status = Ax88179DisableSromWrite(pNicDevice);
+
+    if (BufferSize == 272)
+      Status = Ax88179ReloadSrom(pNicDevice);
+  }
+
+  //
+  // Return the operation status
+  //
+EXIT:
+  gBS->RestoreTPL (TplPrevious);
+  return Status;
+}
+
+/**
+  Resets the network adapter and allocates the transmit and receive buffers
+  required by the network interface; optionally, also requests allocation of
+  additional transmit and receive buffers.  This routine must be called before
+  any other routine in the Simple Network protocol is called.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] ExtraRxBufferSize Size in bytes to add to the receive buffer allocation
+  @param [in] ExtraTxBufferSize Size in bytes to add to the transmit buffer allocation
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_OUT_OF_RESOURCES  There was not enough memory for the transmit and receive buffers
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Initialize (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINTN ExtraRxBufferSize,
+  IN UINTN ExtraTxBufferSize
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+  UINT32  TmpState;
+  EFI_TPL TplPrevious;
+  NIC_DEVICE * pNicDevice;
+  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Determine if the interface is already started
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkStarted == pMode->State ) {
+      if (( 0 == ExtraRxBufferSize ) && ( 0 == ExtraTxBufferSize )) {
+        //
+        // Start the adapter
+        //
+        TmpState = pMode->State;
+        pMode->State = EfiSimpleNetworkInitialized;
+        Status = SN_Reset ( pSimpleNetwork, FALSE );
+        if ( EFI_ERROR ( Status )) {
+          //
+          // Update the network state
+          //
+          pMode->State = TmpState;
+        } else {
+          pMode->MediaPresentSupported = TRUE;
+          pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+          pMode->MediaPresent = Ax88179GetLinkStatus (pNicDevice);
+        }
+      } else {
+        Status = EFI_UNSUPPORTED;
+      }
+    } else {
+      Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL (TplPrevious);
+
+  return Status;
+}
+
+
+/**
+  This function converts a multicast IP address to a multicast HW MAC address
+  for all packet transactions.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bIPv6             Set to TRUE if the multicast IP address is IPv6 [RFC2460].
+                                Set to FALSE if the multicast IP address is IPv4 [RFC 791].
+  @param [in] pIP               The multicast IP address that is to be converted to a
+                                multicast HW MAC address.
+  @param [in] pMAC              The multicast HW MAC address that is to be generated from IP.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_MCastIPtoMAC (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bIPv6,
+  IN EFI_IP_ADDRESS * pIP,
+  IN EFI_MAC_ADDRESS * pMAC
+  )
+{
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // The interface must be running
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      if (pIP == NULL || pMAC == NULL) {
+        Status = EFI_INVALID_PARAMETER;
+        goto EXIT;
+      }
+      if (bIPv6){
+        Status = EFI_UNSUPPORTED;
+        goto EXIT;
+      } else {
+        //
+        // check if the ip given is a mcast IP
+        //
+        if ((pIP->v4.Addr[0] & 0xF0) != 0xE0) {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        } else {
+          pMAC->Addr[0] = 0x01;
+          pMAC->Addr[1] = 0x00;
+          pMAC->Addr[2] = 0x5e;
+          pMAC->Addr[3] = (UINT8) (pIP->v4.Addr[1] & 0x7f);
+          pMAC->Addr[4] = (UINT8) pIP->v4.Addr[2];
+          pMAC->Addr[5] = (UINT8) pIP->v4.Addr[3];
+          Status = EFI_SUCCESS;
+        }
+      }
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR; ;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+EXIT:
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+/**
+  Attempt to receive a packet from the network adapter.
+
+  This function retrieves one packet from the receive queue of the network
+  interface.  If there are no packets on the receive queue, then EFI_NOT_READY
+  will be returned.  If there is a packet on the receive queue, and the size
+  of the packet is smaller than BufferSize, then the contents of the packet
+  will be placed in Buffer, and BufferSize will be udpated with the actual
+  size of the packet.  In addition, if SrcAddr, DestAddr, and Protocol are
+  not NULL, then these values will be extracted from the media header and
+  returned.  If BufferSize is smaller than the received packet, then the
+  size of the receive packet will be placed in BufferSize and
+  EFI_BUFFER_TOO_SMALL will be returned.
+
+  This routine calls ::Ax88179Rx to update the media status and
+  empty the network adapter of receive packets.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [out] pHeaderSize      The size, in bytes, of the media header to be filled in by
+                                the Transmit() function.  If HeaderSize is non-zero, then
+                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
+                                and DestAddr and Protocol parameters must not be NULL.
+  @param [out] pBufferSize      The size, in bytes, of the entire packet (media header and
+                                data) to be transmitted through the network interface.
+  @param [out] pBuffer          A pointer to the packet (media header followed by data) to
+                                to be transmitted.  This parameter can not be NULL.  If
+                                HeaderSize is zero, then the media header is Buffer must
+                                already be filled in by the caller.  If HeaderSize is nonzero,
+                                then the media header will be filled in by the Transmit()
+                                function.
+  @param [out] pSrcAddr         The source HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.  If HeaderSize is nonzero and
+                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
+                                is used for the source HW MAC address.
+  @param [out] pDestAddr        The destination HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.
+  @param [out] pProtocol        The type of header to build.  If HeaderSize is zero, then
+                                this parameter is ignored.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_NOT_READY         No packets have been received on the network interface.
+  @retval EFI_BUFFER_TOO_SMALL  The packet is larger than BufferSize bytes.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Receive (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  OUT UINTN                      * pHeaderSize,
+  OUT UINTN                      * pBufferSize,
+  OUT VOID                       * pBuffer,
+  OUT EFI_MAC_ADDRESS            * pSrcAddr,
+  OUT EFI_MAC_ADDRESS            * pDestAddr,
+  OUT UINT16                     * pProtocol
+  )
+{
+  ETHERNET_HEADER * pHeader;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_STATUS Status;
+  UINT16 Type = 0;
+  UINT16  CurrentPktLen;
+  BOOLEAN bValid = TRUE;
+  EFI_TPL TplPrevious;
+  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // The interface must be running
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      if ((pBufferSize == NULL) || (pBuffer == NULL)) {
+        Status = EFI_INVALID_PARAMETER;
+        gBS->RestoreTPL (TplPrevious);
+        return Status;
+      }
+      //
+      // Update the link status
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
+        if ((NULL != pHeaderSize) && (7720 == *pHeaderSize)) {
+          pNicDevice->Grub_f = TRUE;
+        }
+
+        if ((pNicDevice->Grub_f) && (7720 != *pHeaderSize)) {
+          gBS->RestoreTPL (TplPrevious);
+          return EFI_NOT_READY;
+        }
+        //
+        //  Attempt to do bulk in
+        //
+        if (0 == pNicDevice->PktCnt) {
+          Status = Ax88179BulkIn(pNicDevice);
+          if (EFI_ERROR(Status))
+            goto  no_pkt;
+        }
+        CurrentPktLen = *((UINT16*) (pNicDevice->pCurPktHdrOff + 2));
+        if (CurrentPktLen & (RXHDR_DROP | RXHDR_CRCERR))
+          bValid = FALSE;
+        CurrentPktLen &=  0x1fff;
+        CurrentPktLen -= 2; /*EEEE*/
+
+        if (bValid && ( 60 <= CurrentPktLen ) &&
+        ((CurrentPktLen - 14) <= MAX_ETHERNET_PKT_SIZE) &&
+            (*((UINT16*)pNicDevice->pCurPktOff)) == 0xEEEE) {
+          if (*pBufferSize < (UINTN)CurrentPktLen) {
+            gBS->RestoreTPL (TplPrevious);
+            return EFI_BUFFER_TOO_SMALL;
+          }
+          *pBufferSize = CurrentPktLen;
+          CopyMem ( pBuffer, pNicDevice->pCurPktOff + 2, CurrentPktLen );
+
+          pHeader = (ETHERNET_HEADER *) pNicDevice->pCurPktOff + 2;
+
+          if ( NULL != pHeaderSize  && (7720 != *pHeaderSize)) {
+            *pHeaderSize = sizeof ( *pHeader );
+          }
+
+          if ( NULL != pDestAddr ) {
+            CopyMem ( pDestAddr, &pHeader->dest_addr, PXE_HWADDR_LEN_ETHER );
+          }
+          if ( NULL != pSrcAddr ) {
+            CopyMem ( pSrcAddr, &pHeader->src_addr, PXE_HWADDR_LEN_ETHER );
+          }
+          if ( NULL != pProtocol ) {
+            Type = pHeader->type;
+            Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
+            *pProtocol = Type;
+          }
+          pNicDevice->PktCnt--;
+          pNicDevice->pCurPktHdrOff += 4;
+          pNicDevice->pCurPktOff += (CurrentPktLen + 2 + 7) & 0xfff8;
+          Status = EFI_SUCCESS;
+        } else {
+          pNicDevice->PktCnt = 0;
+          Status = EFI_NOT_READY;
+        }
+      } else {
+        Status = EFI_NOT_READY;
+      }
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  //
+  // Return the operation status
+  //
+no_pkt:
+  gBS->RestoreTPL (TplPrevious);
+  return Status;
+}
+
+
+/**
+  This function is used to enable and disable the hardware and software receive
+  filters for the underlying network device.
+
+  The receive filter change is broken down into three steps:
+
+    1.  The filter mask bits that are set (ON) in the Enable parameter
+        are added to the current receive filter settings.
+
+    2.  The filter mask bits that are set (ON) in the Disable parameter
+        are subtracted from the updated receive filter settins.
+
+    3.  If the resulting filter settigns is not supported by the hardware
+        a more liberal setting is selected.
+
+  If the same bits are set in the Enable and Disable parameters, then the bits
+  in the Disable parameter takes precedence.
+
+  If the ResetMCastFilter parameter is TRUE, then the multicast address list
+  filter is disabled (irregardless of what other multicast bits are set in
+  the enable and Disable parameters).  The SNP->Mode->MCastFilterCount field
+  is set to zero.  The SNP->Mode->MCastFilter contents are undefined.
+
+  After enableing or disabling receive filter settings, software should
+  verify the new settings by checking the SNP->Mode->ReceeiveFilterSettings,
+  SNP->Mode->MCastFilterCount and SNP->Mode->MCastFilter fields.
+
+  Note: Some network drivers and/or devices will automatically promote
+  receive filter settings if the requested setting can not be honored.
+  For example, if a request for four multicast addresses is made and
+  the underlying hardware only supports two multicast addresses the
+  driver might set the promiscuous or promiscuous multicast receive filters
+  instead.  The receiving software is responsible for discarding any extra
+  packets that get through the hardware receive filters.
+
+  If ResetMCastFilter is TRUE, then the multicast receive filter list
+  on the network interface will be reset to the default multicast receive
+  filter list.  If ResetMCastFilter is FALSE, and this network interface
+  allows the multicast receive filter list to be modified, then the
+  MCastFilterCnt and MCastFilter are used to update the current multicast
+  receive filter list.  The modified receive filter list settings can be
+  found in the MCastFilter field of EFI_SIMPLE_NETWORK_MODE.
+
+  This routine calls ::ReceiveFilterUpdate to update the receive
+  state in the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] Enable            A bit mask of receive filters to enable on the network interface.
+  @param [in] Disable           A bit mask of receive filters to disable on the network interface.
+                                For backward compatibility with EFI 1.1 platforms, the
+                                EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit must be set
+                                when the ResetMCastFilter parameter is TRUE.
+  @param [in] bResetMCastFilter Set to TRUE to reset the contents of the multicast receive
+                                filters on the network interface to their default values.
+  @param [in] MCastFilterCnt    Number of multicast HW MAC address in the new MCastFilter list.
+                                This value must be less than or equal to the MaxMCastFilterCnt
+                                field of EFI_SIMPLE_NETWORK_MODE.  This field is optional if
+                                ResetMCastFilter is TRUE.
+  @param [in] pMCastFilter      A pointer to a list of new multicast receive filter HW MAC
+                                addresses.  This list will replace any existing multicast
+                                HW MAC address list.  This field is optional if ResetMCastFilter
+                                is TRUE.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_ReceiveFilters (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINT32 Enable,
+  IN UINT32 Disable,
+/*
+#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
+#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
+#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
+#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
+#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
+*/
+  IN BOOLEAN bResetMCastFilter,
+  IN UINTN MCastFilterCnt,
+  IN EFI_MAC_ADDRESS * pMCastFilter
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status = EFI_SUCCESS;
+  EFI_TPL TplPrevious;
+  NIC_DEVICE * pNicDevice;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+  pMode = pSimpleNetwork->Mode;
+
+  if (pSimpleNetwork == NULL) {
+    gBS->RestoreTPL(TplPrevious);
+    return EFI_INVALID_PARAMETER;
+  }
+
+  switch (pMode->State) {
+  case EfiSimpleNetworkInitialized:
+    break;
+  case EfiSimpleNetworkStopped:
+    Status = EFI_NOT_STARTED;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+
+  default:
+    Status = EFI_DEVICE_ERROR;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  //
+  // check if we are asked to enable or disable something that the UNDI
+  // does not even support!
+  //
+  if (((Enable &~pMode->ReceiveFilterMask) != 0) ||
+      ((Disable &~pMode->ReceiveFilterMask) != 0)) {
+    Status = EFI_INVALID_PARAMETER;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  if (bResetMCastFilter) {
+    Disable |= (EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST & pMode->ReceiveFilterMask);
+    MCastFilterCnt = 0;
+    pMode->MCastFilterCount = 0;
+    if ( (0 == (pMode->ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST)) &&
+   Enable == 0 && Disable == 2) {
+      gBS->RestoreTPL(TplPrevious);
+      return EFI_SUCCESS;
+    }
+  } else {
+    if (MCastFilterCnt != 0) {
+      UINTN i;
+
+      EFI_MAC_ADDRESS * pMulticastAddress;
+      pMulticastAddress =  pMCastFilter;
+
+      if ((MCastFilterCnt > pMode->MaxMCastFilterCount) ||
+          (pMCastFilter == NULL)) {
+        Status = EFI_INVALID_PARAMETER;
+        gBS->RestoreTPL(TplPrevious);
+        return Status;
+      }
+
+      for ( i = 0 ; i < MCastFilterCnt ; i++ ) {
+          UINT8  tmp;
+
+          tmp = pMulticastAddress->Addr[0];
+          if ( (tmp & 0x01) != 0x01 ) {
+            gBS->RestoreTPL(TplPrevious);
+            return EFI_INVALID_PARAMETER;
+          }
+          pMulticastAddress++;
+      }
+
+      pMode->MCastFilterCount = (UINT32)MCastFilterCnt;
+      CopyMem (&pMode->MCastFilter[0],
+               pMCastFilter,
+               MCastFilterCnt * sizeof ( EFI_MAC_ADDRESS/**pMCastFilter*/ ));
+    }
+  }
+
+  if (Enable == 0 && Disable == 0 && !bResetMCastFilter && MCastFilterCnt == 0) {
+    Status = EFI_SUCCESS;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0 && MCastFilterCnt == 0) {
+    Status = EFI_INVALID_PARAMETER;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  pMode->ReceiveFilterSetting |= Enable;
+  pMode->ReceiveFilterSetting &= ~Disable;
+
+  Status = ReceiveFilterUpdate (pSimpleNetwork);
+
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+/**
+  Reset the network adapter.
+
+  Resets a network adapter and reinitializes it with the parameters that
+  were provided in the previous call to Initialize ().  The transmit and
+  receive queues are cleared.  Receive filters, the station address, the
+  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
+  this call.
+
+  This routine calls ::Ax88179Reset to perform the adapter specific
+  reset operation.  This routine also starts the link negotiation
+  by calling ::Ax88179NegotiateLinkStart.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bExtendedVerification  Indicates that the driver may perform a more
+                                exhaustive verification operation of the device
+                                during reset.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Reset (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bExtendedVerification
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  //  Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      //  Update the device state
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+      //
+      //  Reset the device
+      //
+      if (!pNicDevice->bFirstRst) {
+        Status = EFI_SUCCESS;
+      } else {
+        Status = Ax88179Reset ( pNicDevice );
+        if ( !EFI_ERROR ( Status )) {
+          Status = ReceiveFilterUpdate ( pSimpleNetwork );
+          if ( !EFI_ERROR ( Status ) && !pNicDevice->bLinkUp && pNicDevice->bFirstRst) {
+            Status = Ax88179NegotiateLinkStart ( pNicDevice );
+            pNicDevice->bFirstRst = FALSE;
+          }
+        }
+      }
+    } else {
+      Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+/**
+  Initialize the simple network protocol.
+
+  This routine calls ::Ax88179MacAddressGet to obtain the
+  MAC address.
+
+  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
+
+  @retval EFI_SUCCESS     Setup was successful
+
+**/
+EFI_STATUS
+SN_Setup (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork;
+  EFI_STATUS Status;
+
+  //
+  // Initialize the simple network protocol
+  //
+  pSimpleNetwork = &pNicDevice->SimpleNetwork;
+  pSimpleNetwork->Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
+  pSimpleNetwork->Start = (EFI_SIMPLE_NETWORK_START)SN_Start;
+  pSimpleNetwork->Stop = (EFI_SIMPLE_NETWORK_STOP)SN_Stop;
+  pSimpleNetwork->Initialize = (EFI_SIMPLE_NETWORK_INITIALIZE)SN_Initialize;
+  pSimpleNetwork->Reset = (EFI_SIMPLE_NETWORK_RESET)SN_Reset;
+  pSimpleNetwork->Shutdown = (EFI_SIMPLE_NETWORK_SHUTDOWN)SN_Shutdown;
+  pSimpleNetwork->ReceiveFilters = (EFI_SIMPLE_NETWORK_RECEIVE_FILTERS)SN_ReceiveFilters;
+  pSimpleNetwork->StationAddress = (EFI_SIMPLE_NETWORK_STATION_ADDRESS)SN_StationAddress;
+  pSimpleNetwork->Statistics = (EFI_SIMPLE_NETWORK_STATISTICS)SN_Statistics;
+  pSimpleNetwork->MCastIpToMac = (EFI_SIMPLE_NETWORK_MCAST_IP_TO_MAC)SN_MCastIPtoMAC;
+  pSimpleNetwork->NvData = (EFI_SIMPLE_NETWORK_NVDATA)SN_NvData;
+  pSimpleNetwork->GetStatus = (EFI_SIMPLE_NETWORK_GET_STATUS)SN_GetStatus;
+  pSimpleNetwork->Transmit = (EFI_SIMPLE_NETWORK_TRANSMIT)SN_Transmit;
+  pSimpleNetwork->Receive = (EFI_SIMPLE_NETWORK_RECEIVE)SN_Receive;
+  pSimpleNetwork->WaitForPacket = NULL;
+  pMode = &pNicDevice->SimpleNetworkData;
+  pSimpleNetwork->Mode = pMode;
+  pMode->State = EfiSimpleNetworkStopped;
+  pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
+  pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
+  pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
+  pMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
+                           | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
+                           | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
+                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
+                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
+  pMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
+                              | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
+  pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
+  pMode->MCastFilterCount = 0;
+  pMode->NvRamSize = 512;
+  pMode->NvRamAccessSize = 2;
+  SetMem ( &pMode->BroadcastAddress,
+           PXE_HWADDR_LEN_ETHER,
+           0xff );
+  pMode->IfType = EfiNetworkInterfaceUndi;
+  pMode->MacAddressChangeable = TRUE;
+  pMode->MultipleTxSupported = FALSE;
+  pMode->MediaPresentSupported = TRUE;
+  pMode->MediaPresent = FALSE;
+  //
+  //  Read the MAC address
+  //
+  pNicDevice->PhyId = PHY_ID_INTERNAL;
+  pNicDevice->b100Mbps = FALSE;
+  pNicDevice->b1000Mbps = TRUE;
+  pNicDevice->bFullDuplex = TRUE;
+  pNicDevice->bComplete = FALSE;
+  pNicDevice->bLinkUp = FALSE;
+  pNicDevice->Grub_f = FALSE;
+  pNicDevice->bFirstRst = TRUE;
+  pNicDevice->PktCnt = 0;
+  pNicDevice->SkipRXCnt = 0;
+  pNicDevice->usbMaxPktSize = 512;
+  pNicDevice->bSetZeroLen = TRUE;
+
+  Status = Ax88179MacAddressGet ( pNicDevice,
+                                  &pMode->PermanentAddress.Addr[0]);
+  if ( !EFI_ERROR ( Status )) {
+    //
+    //  Use the hardware address as the current address
+    //
+    CopyMem ( &pMode->CurrentAddress,
+              &pMode->PermanentAddress,
+              PXE_HWADDR_LEN_ETHER );
+
+    CopyMem ( &pNicDevice->MAC,
+              &pMode->PermanentAddress,
+              PXE_HWADDR_LEN_ETHER );
+
+  } else {
+    return Status;
+  }
+
+  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
+                               AX88179_MAX_BULKIN_SIZE,
+                               (VOID **) &pNicDevice->pBulkInbuf );
+
+  if (EFI_ERROR (Status)) {
+  return Status;
+  }
+
+  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
+                               sizeof ( TX_PACKET ),
+                               (VOID **) &pNicDevice->pTxTest );
+  if (EFI_ERROR (Status)) {
+  gBS->FreePool (pNicDevice->pBulkInbuf);
+  }
+
+  //
+  //  Return the setup status
+  //
+  return Status;
+}
+
+
+/**
+  This routine starts the network interface.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_ALREADY_STARTED   The network interface was already started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Start (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  NIC_DEVICE * pNicDevice;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+
+
+  //
+  // Verify the parameters
+  //
+  Status = EFI_INVALID_PARAMETER;
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkStopped == pMode->State ) {
+      //
+      // Initialize the mode structure
+      // NVRAM access is not supported
+      //
+      ZeroMem ( pMode, sizeof ( *pMode ));
+
+      pMode->State = EfiSimpleNetworkStarted;
+      pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
+      pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
+      pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
+      pMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
+                               | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
+                               | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
+                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
+                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
+      pMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;
+      pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
+      pMode->MCastFilterCount = 0;
+      pMode->NvRamSize = 512;
+      pMode->NvRamAccessSize = 2;
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+      Status = Ax88179MacAddressGet ( pNicDevice, &pMode->PermanentAddress.Addr[0]);
+      CopyMem ( &pMode->CurrentAddress,
+                &pMode->PermanentAddress,
+                sizeof ( pMode->CurrentAddress ));
+      SetMem(&pMode->BroadcastAddress, PXE_HWADDR_LEN_ETHER, 0xff);
+      pMode->IfType = EfiNetworkInterfaceUndi;
+      pMode->MacAddressChangeable = TRUE;
+      pMode->MultipleTxSupported = FALSE;
+      pMode->MediaPresentSupported = TRUE;
+      pMode->MediaPresent = FALSE;
+
+    } else {
+      Status = EFI_ALREADY_STARTED;
+    }
+  }
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+
+/**
+  Set the MAC address.
+
+  This function modifies or resets the current station address of a
+  network interface.  If Reset is TRUE, then the current station address
+  is set ot the network interface's permanent address.  If Reset if FALSE
+  then the current station address is changed to the address specified by
+  pNew.
+
+  This routine calls ::Ax88179MacAddressSet to update the MAC address
+  in the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Flag used to reset the station address to the
+                                network interface's permanent address.
+  @param [in] pNew              New station address to be used for the network
+                                interface.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_StationAddress (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN EFI_MAC_ADDRESS * pNew
+  )
+{
+  NIC_DEVICE * pNicDevice;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+
+  EFI_TPL TplPrevious;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) &&
+      ( NULL != pSimpleNetwork->Mode ) &&
+      (( !bReset ) || ( bReset && ( NULL != pNew )))) {
+    //
+    // Verify that the adapter is already started
+    //
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      // Determine the adapter MAC address
+      //
+      if ( bReset ) {
+        //
+        // Use the permanent address
+        //
+        CopyMem ( &pMode->CurrentAddress,
+                  &pMode->PermanentAddress,
+                  sizeof ( pMode->CurrentAddress ));
+      } else {
+        //
+        // Use the specified address
+        //
+        CopyMem ( &pMode->CurrentAddress,
+                  pNew,
+                  sizeof ( pMode->CurrentAddress ));
+      }
+
+      //
+      // Update the address on the adapter
+      //
+      Status = Ax88179MacAddressSet ( pNicDevice, &pMode->CurrentAddress.Addr[0]);
+    }  else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+          Status = EFI_DEVICE_ERROR; ;
+      } else {
+          Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+
+/**
+  This function resets or collects the statistics on a network interface.
+  If the size of the statistics table specified by StatisticsSize is not
+  big enough for all of the statistics that are collected by the network
+  interface, then a partial buffer of statistics is returned in
+  StatisticsTable.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
+  @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
+                                the size, in bytes, of the resulting table of statistics.
+  @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
+                                conains the statistics.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+  typedef struct {
+  UINT64 RxTotalFrames;
+  UINT64 RxGoodFrames;
+  UINT64 RxUndersizeFrames;
+  UINT64 RxOversizeFrames;
+  UINT64 RxDroppedFrames;
+  UINT64 RxUnicastFrames;
+  UINT64 RxBroadcastFrames;
+  UINT64 RxMulticastFrames;
+  UINT64 RxCrcErrorFrames;
+  UINT64 RxTotalBytes;
+  UINT64 TxTotalFrames;
+  UINT64 TxGoodFrames;
+  UINT64 TxUndersizeFrames;
+  UINT64 TxOversizeFrames;
+  UINT64 TxDroppedFrames;
+  UINT64 TxUnicastFrames;
+  UINT64 TxBroadcastFrames;
+  UINT64 TxMulticastFrames;
+  UINT64 TxCrcErrorFrames;
+  UINT64 TxTotalBytes;
+  UINT64 Collisions;
+  UINT64 UnsupportedProtocol;
+  } EFI_NETWORK_STATISTICS;
+**/
+EFI_STATUS
+EFIAPI
+SN_Statistics (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN OUT UINTN * pStatisticsSize,
+  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
+  )
+{
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  pMode = pSimpleNetwork->Mode;
+
+  if ( EfiSimpleNetworkInitialized == pMode->State ) {
+    if (NULL != pStatisticsSize && 0 == *pStatisticsSize) {
+      Status = EFI_BUFFER_TOO_SMALL;
+      goto EXIT;
+    }
+
+    if(bReset) {
+      Status = EFI_SUCCESS;
+    } else {
+      Status = EFI_SUCCESS;
+    }
+  } else {
+    if (EfiSimpleNetworkStarted == pMode->State) {
+      Status = EFI_DEVICE_ERROR; ;
+    } else {
+      Status = EFI_NOT_STARTED ;
+    }
+  }
+
+  Status = EFI_UNSUPPORTED;
+EXIT:
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+
+/**
+  This function stops a network interface.  This call is only valid
+  if the network interface is in the started state.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Stop (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Determine if the interface is started
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkStarted == pMode->State ) {
+        pMode->State = EfiSimpleNetworkStopped;
+        Status = EFI_SUCCESS;
+    } else {
+        Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+/**
+  This function releases the memory buffers assigned in the Initialize() call.
+  Pending transmits and receives are lost, and interrupts are cleared and disabled.
+  After this call, only Initialize() and Stop() calls may be used.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Shutdown (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+  NIC_DEVICE * pNicDevice;
+  EFI_TPL TplPrevious;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Determine if the interface is already started
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      // Stop the adapter
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+      Status = Ax88179MacAddressGet ( pNicDevice, &pMode->PermanentAddress.Addr[0]);
+      if ( !EFI_ERROR ( Status )) {
+        //
+        // Update the network state
+        //
+        pMode->State = EfiSimpleNetworkStarted;
+      } else if ( EFI_DEVICE_ERROR == Status ) {
+        pMode->State = EfiSimpleNetworkStopped;
+      }
+    } else {
+      Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious );
+  return Status;
+}
+
+
+/**
+  Send a packet over the network.
+
+  This function places the packet specified by Header and Buffer on
+  the transmit queue.  This function performs a non-blocking transmit
+  operation.  When the transmit is complete, the buffer is returned
+  via the GetStatus() call.
+
+  This routine calls ::Ax88179Rx to empty the network adapter of
+  receive packets.  The routine then passes the transmit packet
+  to the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
+                                the Transmit() function.  If HeaderSize is non-zero, then
+                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
+                                and DestAddr and Protocol parameters must not be NULL.
+  @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
+                                data) to be transmitted through the network interface.
+  @param [in] pBuffer           A pointer to the packet (media header followed by data) to
+                                to be transmitted.  This parameter can not be NULL.  If
+                                HeaderSize is zero, then the media header is Buffer must
+                                already be filled in by the caller.  If HeaderSize is nonzero,
+                                then the media header will be filled in by the Transmit()
+                                function.
+  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.  If HeaderSize is nonzero and
+                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
+                                is used for the source HW MAC address.
+  @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.
+  @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
+                                this parameter is ignored.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
+  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Transmit (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINTN HeaderSize,
+  IN UINTN BufferSize,
+  IN VOID * pBuffer,
+  IN EFI_MAC_ADDRESS * pSrcAddr,
+  IN EFI_MAC_ADDRESS * pDestAddr,
+  IN UINT16 * pProtocol
+  )
+{
+  ETHERNET_HEADER * pHeader;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  EFI_STATUS Status;
+  UINTN TransferLength;
+  UINT32 TransferStatus;
+  UINT16 Type = 0;
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // The interface must be running
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      // Update the link status
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
+        if (0 != HeaderSize && pMode->MediaHeaderSize != HeaderSize)  {
+            Status = EFI_INVALID_PARAMETER;
+            goto EXIT;
+        }
+        if (BufferSize <  pMode->MediaHeaderSize) {
+            Status = EFI_INVALID_PARAMETER;
+            goto EXIT;
+        }
+        if (NULL == pBuffer) {
+            Status = EFI_INVALID_PARAMETER;
+            goto EXIT;
+        }
+        if (0 != HeaderSize && NULL == pDestAddr) {
+            Status = EFI_INVALID_PARAMETER;
+            goto EXIT;
+        }
+        if (0 != HeaderSize && NULL == pProtocol) {
+            Status = EFI_INVALID_PARAMETER;
+            goto EXIT;
+        }
+        //
+        //  Copy the packet into the USB buffer
+        //
+        // pBuffer starting with 14 bytes 0
+        CopyMem ( &pNicDevice->pTxTest->Data[0], pBuffer, BufferSize);
+        pNicDevice->pTxTest->TxHdr1 = (UINT32) BufferSize;
+        pNicDevice->pTxTest->TxHdr2 = 0;
+        //
+        //  Transmit the packet
+        //
+        pHeader = (ETHERNET_HEADER *) &pNicDevice->pTxTest->Data[0];
+        if ( 0 != HeaderSize ) {
+          if ( NULL != pDestAddr ) {
+            CopyMem ( &pHeader->dest_addr, pDestAddr, PXE_HWADDR_LEN_ETHER );
+          }
+          if ( NULL != pSrcAddr ) {
+            CopyMem ( &pHeader->src_addr, pSrcAddr, PXE_HWADDR_LEN_ETHER );
+          } else {
+            CopyMem ( &pHeader->src_addr, &pMode->CurrentAddress.Addr[0], PXE_HWADDR_LEN_ETHER );
+          }
+          if ( NULL != pProtocol ) {
+            Type = *pProtocol;
+          } else {
+              Type = (UINT16) BufferSize;
+          }
+          Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
+          pHeader->type = Type;
+        }
+
+        if ( pNicDevice->pTxTest->TxHdr1 < MIN_ETHERNET_PKT_SIZE ) {
+          pNicDevice->pTxTest->TxHdr1 = MIN_ETHERNET_PKT_SIZE;
+          ZeroMem ( &pNicDevice->pTxTest->Data[BufferSize],
+                    MIN_ETHERNET_PKT_SIZE - BufferSize );
+        }
+
+        TransferLength = sizeof ( pNicDevice->pTxTest->TxHdr1 )
+                       + sizeof ( pNicDevice->pTxTest->TxHdr2 )
+                       + pNicDevice->pTxTest->TxHdr1;
+        //
+        //  Work around USB bus driver bug where a timeout set by receive
+        //  succeeds but the timeout expires immediately after, causing the
+        //  transmit operation to timeout.
+        //
+        pUsbIo = pNicDevice->pUsbIo;
+        Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
+                                           BULK_OUT_ENDPOINT,
+                                           &pNicDevice->pTxTest->TxHdr1,
+                                           &TransferLength,
+                                           0xfffffffe,
+                                           &TransferStatus );
+
+        if (!EFI_ERROR(Status) && !EFI_ERROR(Status)) {
+              pNicDevice->pTxBuffer = pBuffer;
+              Status = EFI_SUCCESS;
+        } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT == TransferStatus) {
+              Status = EFI_NOT_READY;
+        } else {
+              Status = EFI_DEVICE_ERROR;
+        }
+      } else {
+        //
+        // No packets available.
+        //
+        Status = EFI_NOT_READY;
+      }
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+          Status = EFI_DEVICE_ERROR; ;
+      } else {
+          Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+EXIT:
+  gBS->RestoreTPL (TplPrevious);
+  return Status;
+}
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [edk2-platform][PATCH v1 2/2] Drivers/OptionRomPkg: UsbNetworking: ASIX Ax88772c driver v2.8.0
  2020-05-07  3:37 [edk2-platform][PATCH v1 0/2] Update ASIX USB Networking drivers Samer El-Haj-Mahmoud
  2020-05-07  3:37 ` [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver Samer El-Haj-Mahmoud
@ 2020-05-07  3:37 ` Samer El-Haj-Mahmoud
  1 sibling, 0 replies; 6+ messages in thread
From: Samer El-Haj-Mahmoud @ 2020-05-07  3:37 UTC (permalink / raw)
  To: devel; +Cc: Ray Ni, Leif Lindholm, Ard Biesheuvel

This is the initial revision of ASIX USB networking UEFI driver
version 2.8.0 for Ax88772c / Ax88772b / Ax88772a
https://www.asix.com.tw/download.php?sub=driverdetail&PItemID=136

Source code contributed by ASIX.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>

Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>
---
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772c.inf    |   65 +
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.h       | 1097 +++++++++++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.c       | 1296 ++++++++++++++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/ComponentName.c |  246 +++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/DriverBinding.c |  637 ++++++++
 Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/SimpleNetwork.c | 1612 ++++++++++++++++++++
 6 files changed, 4953 insertions(+)

diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772c.inf b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772c.inf
new file mode 100644
index 000000000000..1d37a5dae34b
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772c.inf
@@ -0,0 +1,65 @@
+## @file
+# Component description file for ASIX AX88772 USB/Ethernet driver.
+#
+# This module provides support for the ASIX AX88772 USB/Ethernet adapter.
+# Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010018
+  BASE_NAME                      = Ax88772c
+  FILE_GUID                      = B15239D6-6A01-4808-A0F7-B7F20F073555
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+
+  ENTRY_POINT                    = EntryPoint
+
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources.common]
+  Ax88772.h
+  Ax88772.c
+  ComponentName.c
+  DriverBinding.c
+  SimpleNetwork.c
+
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  UefiLib
+  UefiBootServicesTableLib
+  BaseMemoryLib
+  DebugLib
+  UefiDriverEntryPoint
+
+[Protocols]
+  gEfiDevicePathProtocolGuid           ## BY_START
+  gEfiSimpleNetworkProtocolGuid        ## BY_START
+  gEfiUsbIoProtocolGuid                ## TO_START
+
+#[Guids]
+#  gEfiEventExitBootServicesGuid        ## PRODUCES ## Event
+#  gEfiEventVirtualAddressChangeGuid    ## PRODUCES ## Event
+#  gEfiNicIp4ConfigVariableGuid
+
+[Depex]
+  gEfiBdsArchProtocolGuid AND
+  gEfiCpuArchProtocolGuid AND
+  gEfiMetronomeArchProtocolGuid AND
+  gEfiMonotonicCounterArchProtocolGuid AND
+  gEfiRealTimeClockArchProtocolGuid AND
+  gEfiResetArchProtocolGuid AND
+  gEfiRuntimeArchProtocolGuid AND
+  gEfiSecurityArchProtocolGuid AND
+  gEfiTimerArchProtocolGuid AND
+  gEfiVariableWriteArchProtocolGuid AND
+  gEfiVariableArchProtocolGuid AND
+  gEfiWatchdogTimerArchProtocolGuid
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.h b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.h
new file mode 100644
index 000000000000..18317fd5c4f7
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.h
@@ -0,0 +1,1097 @@
+/** @file
+  Definitions for ASIX AX88772 Ethernet adapter.
+
+  Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _AX88772_H_
+#define _AX88772_H_
+
+#include <Uefi.h>
+
+#include <Guid/EventGroup.h>
+
+#include <IndustryStandard/Pci.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeLib.h>
+
+#include <Protocol/DevicePath.h>
+#include <Protocol/LoadedImage.h>
+#include <Protocol/NetworkInterfaceIdentifier.h>
+#include <Protocol/SimpleNetwork.h>
+#include <Protocol/UsbIo.h>
+
+#define MAX_QUEUE_SIZE 50
+#define MAX_BULKIN_SIZE 16384
+#define HW_HDR_LENGTH 8
+#define PASS_SCT      0
+#define REPORTLINK    1
+
+#define ARM  0
+
+#if ARM
+#define MAX_LINKIDLE_THRESHOLD  100
+#else
+#define MAX_LINKIDLE_THRESHOLD  30
+#endif
+
+#define AMI    1
+#define ASIX_MCAST_FILTER_CNT 8
+#define RXTHOU 0
+
+#if 0
+//------------------------------------------------------------------------------
+//  Macros
+//------------------------------------------------------------------------------
+
+#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler specifics. */
+#define DBG_ENTER()             DEBUG (( 0xffffffff, "Entering " __FUNCTION__ "\n" )) ///<  Display routine entry
+#define DBG_EXIT()              DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ "\n" ))  ///<  Display routine exit
+#define DBG_EXIT_DEC(Status)    DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: %d\n", Status ))      ///<  Display routine exit with decimal value
+#define DBG_EXIT_HEX(Status)    DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: 0x%08x\n", Status ))  ///<  Display routine exit with hex value
+#define DBG_EXIT_STATUS(Status) DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: %r\n", Status ))      ///<  Display routine exit with status value
+#define DBG_EXIT_TF(Status)     DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", returning %s\n", (FALSE == Status) ? L"FALSE" : L"TRUE" ))  ///<  Display routine with TRUE/FALSE value
+#else   //  _MSC_VER
+#define DBG_ENTER()               ///<  Display routine entry
+#define DBG_EXIT()                ///<  Display routine exit
+#define DBG_EXIT_DEC(Status)      ///<  Display routine exit with decimal value
+#define DBG_EXIT_HEX(Status)      ///<  Display routine exit with hex value
+#define DBG_EXIT_STATUS(Status)   ///<  Display routine exit with status value
+#define DBG_EXIT_TF(Status)       ///<  Display routine with TRUE/FALSE value
+#endif  //  _MSC_VER
+
+#endif
+
+#define USB_IS_IN_ENDPOINT(EndPointAddr)      (((EndPointAddr) & BIT7) != 0)  ///<  Return TRUE/FALSE for IN direction
+#define USB_IS_OUT_ENDPOINT(EndPointAddr)     (((EndPointAddr) & BIT7) == 0)  ///<  Return TRUE/FALSE for OUT direction
+#define USB_IS_BULK_ENDPOINT(Attribute)       (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_BULK)      ///<  Return TRUE/FALSE for BULK type
+#define USB_IS_INTERRUPT_ENDPOINT(Attribute)  (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) ///<  Return TRUE/FALSE for INTERRUPT type
+
+
+#define PRINT(_L_STR) (gST->ConOut->OutputString(gST->ConOut,(_L_STR)))
+//------------------------------------------------------------------------------
+//  Constants
+//------------------------------------------------------------------------------
+
+#define DEBUG_RX_BROADCAST  0x40000000  ///<  Display RX broadcast messages
+#define DEBUG_RX_MULTICAST  0x20000000  ///<  Display RX multicast messages
+#define DEBUG_RX_UNICAST    0x10000000  ///<  Display RX unicast messages
+#define DEBUG_MAC_ADDRESS   0x08000000  ///<  Display the MAC address
+#define DEBUG_LINK          0x04000000  ///<  Display the link status
+#define DEBUG_TX            0x02000000  ///<  Display the TX messages
+#define DEBUG_PHY           0x01000000  ///<  Display the PHY register values
+#define DEBUG_SROM          0x00800000  ///<  Display the SROM contents
+#define DEBUG_TIMER         0x00400000  ///<  Display the timer routine entry/exit
+#define DEBUG_TPL           0x00200000  ///<  Display the timer routine entry/exit
+
+#if RXTHOU
+#define AX88772_MAX_BULKIN_SIZE    1024 * 17 //32
+#else
+#define AX88772_MAX_BULKIN_SIZE    1024 * 3
+#endif
+
+#define AX88772_MAX_PKT_SIZE  2048  ///< Maximum packet size
+
+#define ETHERNET_HEADER_SIZE  sizeof ( ETHERNET_HEADER )  ///<  Size in bytes of the Ethernet header
+#define MIN_ETHERNET_PKT_SIZE 60    ///<  Minimum packet size including Ethernet header
+#define MAX_ETHERNET_PKT_SIZE 1500  ///<  Ethernet spec 3.1.1: Minimum packet size
+
+#define USB_NETWORK_CLASS   0x09    ///<  USB Network class code
+#define USB_BUS_TIMEOUT     1000    ///<  USB timeout in milliseconds
+
+#define TIMER_MSEC          20              ///<  Polling interval for the NIC
+//#define TPL_AX88772         TPL_CALLBACK    ///<  TPL for routine synchronization
+
+#define HC_DEBUG  0
+
+#if RXTHOU
+#define BULKIN_TIMEOUT  3 //10 //100 //1000
+#else
+#define BULKIN_TIMEOUT  3000
+#endif
+
+#define AUTONEG_DELAY   2000000
+#define AUTONEG_POLL_CNT    5
+
+/**
+  Verify new TPL value
+
+  This macro which is enabled when debug is enabled verifies that
+  the new TPL value is >= the current TPL value.
+**/
+#ifdef VERIFY_TPL
+#undef VERIFY_TPL
+#endif  //  VERIFY_TPL
+
+#if !defined(MDEPKG_NDEBUG)
+
+#define VERIFY_TPL(tpl)                           \
+{                                                 \
+  EFI_TPL PreviousTpl;                            \
+                                                  \
+  PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \
+  gBS->RestoreTPL ( PreviousTpl );                \
+  if ( PreviousTpl > tpl ) {                      \
+    DEBUG (( DEBUG_ERROR, "Current TPL: %d, New TPL: %d\r\n", PreviousTpl, tpl ));  \
+    ASSERT ( PreviousTpl <= tpl );                \
+  }                                               \
+}
+
+#else   //  MDEPKG_NDEBUG
+
+#define VERIFY_TPL(tpl)
+
+#endif  //  MDEPKG_NDEBUG
+
+//------------------------------------------------------------------------------
+//  Hardware Definition
+//------------------------------------------------------------------------------
+
+#define FreeQueueSize     10
+
+#define DEV_SIGNATURE     SIGNATURE_32 ('A','X','8','8')  ///<  Signature of data structures in memory
+
+#define VENDOR_ID         0x0B95  ///<  Vendor ID for Asix
+#define VENDOR_AX88772B_LENOVO_ID  0x17EF
+
+
+/* Freddy */
+#define PRODUCT_ID        0x7720  ///<  Product ID for the AX88772 USB 10/100 Ethernet controller
+#define PRODUCT_AX88772A_ID   0x772A
+#define PRODUCT_AX88772B_ID   0x772b
+#define PRODUCT_AX88772B_ASUS_ID 0x7e2b
+#define PRODUCT_AX88772B_LENOVO_ID 0x7203
+/* Freddy */
+
+
+#define RESET_MSEC        1000    ///<  Reset duration
+#define PHY_RESET_MSEC     500    ///<  PHY reset duration
+
+//
+//  RX Control register
+//
+
+#define RXC_PRO           0x0001  ///<  Receive all packets
+#define RXC_AMALL         0x0002  ///<  Receive all multicast packets
+#define RXC_SEP           0x0004  ///<  Save error packets
+#define RXC_AB            0x0008  ///<  Receive broadcast packets
+#define RXC_AM            0x0010  ///<  Use multicast destination address hash table
+#define RXC_AP            0x0020  ///<  Accept physical address from Multicast Filter
+#define RXC_SO            0x0080  ///<  Start operation
+#define RXC_MFB           0x0300  ///<  Maximum frame burst
+#define RXC_MFB_2048      0       ///<  Maximum frame size:  2048 bytes
+#define RXC_MFB_4096      0x0100  ///<  Maximum frame size:  4096 bytes
+#define RXC_MFB_8192      0x0200  ///<  Maximum frame size:  8192 bytes
+#define RXC_MFB_16384     0x0300  ///<  Maximum frame size: 16384 bytes
+
+/*Freddy*/
+#define RXC_RH1M          0x0100  ///<  Rx header 1
+#define RXC_RH2M          0x0200  ///<  Rx header 2
+#define RXC_RH3M          0x0400  ///<  Rx header 3
+/*Freddy*/
+
+//
+//  Medium Status register
+//
+
+#define MS_FD             0x0002  ///<  Full duplex
+#define MS_ONE            0x0004  ///<  Must be one
+#define MS_RFC            0x0010  ///<  RX flow control enable
+#define MS_TFC            0x0020  ///<  TX flow control enable
+#define MS_PF             0x0080  ///<  Pause frame enable
+#define MS_RE             0x0100  ///<  Receive enable
+#define MS_PS             0x0200  ///<  Port speed 1=100, 0=10 Mbps
+#define MS_SBP            0x0800  ///<  Stop back pressure
+#define MS_SM             0x1000  ///<  Super MAC support
+
+//
+//  Software PHY Select register
+//
+
+#define SPHY_PSEL         (1 << 0)    ///<  Select internal PHY
+#define SPHY_SSMII        (1 << 2)
+#define SPHY_SSEN         (1 << 4)
+#define SPHY_ASEL         0x02    ///<  1=Auto select, 0=Manual select
+
+//
+//  Software Reset register
+//
+
+#define SRR_RR            0x01    ///<  Clear receive frame length error
+#define SRR_RT            0x02    ///<  Clear transmit frame length error
+#define SRR_BZTYPE        0x04    ///<  External PHY reset pin tri-state enable
+#define SRR_PRL           0x08    ///<  External PHY reset pin level
+#define SRR_BZ            0x10    ///<  Force Bulk to return zero length packet
+#define SRR_IPRL          0x20    ///<  Internal PHY reset control
+#define SRR_IPPD          0x40    ///<  Internal PHY power down
+
+//
+//  PHY ID values
+//
+
+#define PHY_ID_INTERNAL   0x0010  ///<  Internal PHY
+
+//
+//  USB Commands
+//
+
+#define CMD_PHY_ACCESS_SOFTWARE   0x06  ///<  Software in control of PHY
+#define CMD_PHY_REG_READ          0x07  ///<  Read PHY register, Value: PHY, Index: Register, Data: Register value
+#define CMD_PHY_REG_WRITE         0x08  ///<  Write PHY register, Value: PHY, Index: Register, Data: New 16-bit value
+#define CMD_PHY_ACCESS_HARDWARE   0x0a  ///<  Hardware in control of PHY
+#define CMD_SROM_READ             0x0b  ///<  Read SROM register: Value: Address, Data: Value
+#define CMD_SROM_WRITE            0x0c  ///<  Read SROM register: Value: Address, Data: Value
+#define CMD_SROM_WRITE_EN         0x0d
+#define CMD_SROM_WRITE_DIS        0x0e
+#define CMD_RX_CONTROL_WRITE      0x10  ///<  Set the RX control register, Value: New value
+#define CMD_GAPS_WRITE            0x12  ///<  Write the gaps register, Value: New value
+#define CMD_MAC_ADDRESS_READ      0x13  ///<  Read the MAC address, Data: 6 byte MAC address
+#define CMD_MAC_ADDRESS_WRITE     0x14  ///<  Set the MAC address, Data: New 6 byte MAC address
+#define CMD_MULTICAST_HASH_READ   0x15  ///<  Read the multicast hash table
+#define CMD_MULTICAST_HASH_WRITE  0x16  ///<  Write the multicast hash table, Data: New 8 byte value
+#define CMD_MEDIUM_STATUS_READ    0x1a  ///<  Read medium status register, Data: Register value
+#define CMD_MEDIUM_STATUS_WRITE   0x1b  ///<  Write medium status register, Value: New value
+#define CMD_WRITE_GPIOS           0x1f
+#define CMD_RESET                 0x20  ///<  Reset register, Value: New value
+#define CMD_PHY_SELECT            0x22  ///<  PHY select register, Value: New value
+
+/*Freddy*/
+#define CMD_RXQTC                 0x2a  ///<  RX Queue Cascade Threshold Control Register
+/*Freddy*/
+
+//------------------------------
+//  USB Endpoints
+//------------------------------
+
+#define CONTROL_ENDPOINT                0       ///<  Control endpoint
+#define INTERRUPT_ENDPOINT              1       ///<  Interrupt endpoint
+#define BULK_IN_ENDPOINT                2       ///<  Receive endpoint
+#define BULK_OUT_ENDPOINT               3       ///<  Transmit endpoint
+
+//------------------------------
+//  PHY Registers
+//------------------------------
+
+#define PHY_BMCR                        0       ///<  Control register
+#define PHY_BMSR                        1       ///<  Status register
+#define PHY_ANAR                        4       ///<  Autonegotiation advertisement register
+#define PHY_ANLPAR                      5       ///<  Autonegotiation link parter ability register
+#define PHY_ANER                        6       ///<  Autonegotiation expansion register
+
+//  BMCR - Register 0
+
+#define BMCR_RESET                      0x8000  ///<  1 = Reset the PHY, bit clears after reset
+#define BMCR_LOOPBACK                   0x4000  ///<  1 = Loopback enabled
+#define BMCR_100MBPS                    0x2000  ///<  100 Mbits/Sec
+#define BMCR_10MBPS                     0       ///<  10 Mbits/Sec
+#define BMCR_AUTONEGOTIATION_ENABLE     0x1000  ///<  1 = Enable autonegotiation
+#define BMCR_POWER_DOWN                 0x0800  ///<  1 = Power down
+#define BMCR_ISOLATE                    0x0400  ///<  0 = Isolate PHY
+#define BMCR_RESTART_AUTONEGOTIATION    0x0200  ///<  1 = Restart autonegotiation
+#define BMCR_FULL_DUPLEX                0x0100  ///<  Full duplex operation
+#define BMCR_HALF_DUPLEX                0       ///<  Half duplex operation
+#define BMCR_COLLISION_TEST             0x0080  ///<  1 = Collision test enabled
+
+//  BSMR - Register 1
+
+#define BMSR_100BASET4                  0x8000  ///<  1 = 100BASE-T4 mode
+#define BMSR_100BASETX_FDX              0x4000  ///<  1 = 100BASE-TX full duplex
+#define BMSR_100BASETX_HDX              0x2000  ///<  1 = 100BASE-TX half duplex
+#define BMSR_10BASET_FDX                0x1000  ///<  1 = 10BASE-T full duplex
+#define BMSR_10BASET_HDX                0x0800  ///<  1 = 10BASE-T half duplex
+#define BMSR_MF                         0x0040  ///<  1 = PHY accepts frames with preamble suppressed
+#define BMSR_AUTONEG_CMPLT              0x0020  ///<  1 = Autonegotiation complete
+#define BMSR_RF                         0x0010  ///<  1 = Remote fault
+#define BMSR_AUTONEG                    0x0008  ///<  1 = Able to perform autonegotiation
+#define BMSR_LINKST                     0x0004  ///<  1 = Link up
+#define BMSR_JABBER_DETECT              0x0002  ///<  1 = jabber condition detected
+#define BMSR_EXTENDED_CAPABILITY        0x0001  ///<  1 = Extended register capable
+
+//  ANAR and ANLPAR Registers 4, 5
+
+#define AN_NP                           0x8000  ///<  1 = Next page available
+#define AN_ACK                          0x4000  ///<  1 = Link partner acknowledged
+#define AN_RF                           0x2000  ///<  1 = Remote fault indicated by link partner
+#define AN_FCS                          0x0400  ///<  1 = Flow control ability
+#define AN_T4                           0x0200  ///<  1 = 100BASE-T4 support
+#define AN_TX_FDX                       0x0100  ///<  1 = 100BASE-TX Full duplex
+#define AN_TX_HDX                       0x0080  ///<  1 = 100BASE-TX support
+#define AN_10_FDX                       0x0040  ///<  1 = 10BASE-T Full duplex
+#define AN_10_HDX                       0x0020  ///<  1 = 10BASE-T support
+#define AN_CSMA_CD                      0x0001  ///<  1 = IEEE 802.3 CSMA/CD support
+
+
+
+//------------------------------------------------------------------------------
+//  Data Types
+//------------------------------------------------------------------------------
+
+/**
+  Ethernet header layout
+
+  IEEE 802.3-2002 Part 3 specification, section 3.1.1.
+**/
+#pragma pack(1)
+typedef struct {
+  UINT8 dest_addr[PXE_HWADDR_LEN_ETHER];  ///<  Destination LAN address
+  UINT8 src_addr[PXE_HWADDR_LEN_ETHER];   ///<  Source LAN address
+  UINT16 type;                            ///<  Protocol or length
+} ETHERNET_HEADER;
+#pragma pack()
+
+/**
+  Receive and Transmit packet structure
+**/
+#pragma pack(1)
+typedef struct _RX_TX_PACKET {
+  struct _RX_TX_PACKET * pNext;       ///<  Next receive packet
+  UINT16 Length;                      ///<  Packet length
+  UINT16 LengthBar;                   ///<  Complement of the length
+  UINT8 Data[ AX88772_MAX_PKT_SIZE ]; ///<  Received packet data
+} RX_TX_PACKET;
+#pragma pack()
+
+/**
+  AX88772 control structure
+
+  The driver uses this structure to manage the Asix AX88772 10/100
+  Ethernet controller.
+**/
+typedef struct {
+  UINTN Signature;          ///<  Structure identification
+
+  //
+  //  USB data
+  //
+  EFI_HANDLE Controller;        ///<  Controller handle
+  EFI_USB_IO_PROTOCOL * pUsbIo;  ///<  USB driver interface
+
+  //
+  //  Simple network protocol data
+  //
+  EFI_SIMPLE_NETWORK_PROTOCOL SimpleNetwork;  ///<  Driver's network stack interface
+  EFI_SIMPLE_NETWORK_MODE SimpleNetworkData;  ///<  Data for simple network
+
+  //
+  // Ethernet controller data
+  //
+  BOOLEAN bInitialized;     ///<  Controller initialized
+  UINT16 PhyId;             ///<  PHY ID
+
+  //
+  //  Link state
+  //
+  BOOLEAN b100Mbps;         ///<  Current link speed, FALSE = 10 Mbps
+  BOOLEAN bComplete;        ///<  Current state of auto-negotiation
+  BOOLEAN bFullDuplex;      ///<  Current duplex
+  BOOLEAN bLinkUp;          ///<  Current link state
+  UINTN PollCount;          ///<  Number of times the autonegotiation status was polled
+  UINT16 CurRxControl;
+  VOID * pTxBuffer;
+  //
+  //  Receive buffer list
+  //
+  UINT8     *pBulkInbuf;
+  UINT8    * pCurPktHdrOff;
+  UINT8     *pCurPktOff;
+  UINT16    PktCnt;
+
+  RX_TX_PACKET * pTxTest;
+
+  UINT8 MulticastHash[8];
+  EFI_MAC_ADDRESS MAC;
+
+  EFI_DEVICE_PATH_PROTOCOL                  *MyDevPath;
+  BOOLEAN   Grub_f;
+  BOOLEAN   bFirstRst;
+  BOOLEAN   Flag772A;
+#if RXTHOU
+  UINT8 rxburst;
+#endif
+
+} NIC_DEVICE;
+
+
+//
+// Global Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL   gDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2;
+
+#define DEV_FROM_SIMPLE_NETWORK(a)  CR (a, NIC_DEVICE, SimpleNetwork, DEV_SIGNATURE)  ///< Locate NIC_DEVICE from Simple Network Protocol
+
+//------------------------------------------------------------------------------
+// Simple Network Protocol
+//------------------------------------------------------------------------------
+
+/**
+  Reset the network adapter.
+
+  Resets a network adapter and reinitializes it with the parameters that
+  were provided in the previous call to Initialize ().  The transmit and
+  receive queues are cleared.  Receive filters, the station address, the
+  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
+  this call.
+
+  This routine calls ::Ax88772Reset to perform the adapter specific
+  reset operation.  This routine also starts the link negotiation
+  by calling ::Ax88772NegotiateLinkStart.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bExtendedVerification  Indicates that the driver may perform a more
+                                exhaustive verification operation of the device
+                                during reset.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Reset (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bExtendedVerification
+  );
+
+/**
+  Initialize the simple network protocol.
+
+  This routine calls ::Ax88772MacAddressGet to obtain the
+  MAC address.
+
+  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
+
+  @retval EFI_SUCCESS     Setup was successful
+
+**/
+EFI_STATUS
+SN_Setup (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  This routine starts the network interface.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_ALREADY_STARTED   The network interface was already started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Start (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  );
+
+/**
+  Set the MAC address.
+
+  This function modifies or resets the current station address of a
+  network interface.  If Reset is TRUE, then the current station address
+  is set ot the network interface's permanent address.  If Reset if FALSE
+  then the current station address is changed to the address specified by
+  pNew.
+
+  This routine calls ::Ax88772MacAddressSet to update the MAC address
+  in the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Flag used to reset the station address to the
+                                network interface's permanent address.
+  @param [in] pNew              New station address to be used for the network
+                                interface.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_StationAddress (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN EFI_MAC_ADDRESS * pNew
+  );
+
+/**
+  This function resets or collects the statistics on a network interface.
+  If the size of the statistics table specified by StatisticsSize is not
+  big enough for all of the statistics that are collected by the network
+  interface, then a partial buffer of statistics is returned in
+  StatisticsTable.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
+  @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
+                                the size, in bytes, of the resulting table of statistics.
+  @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
+                                conains the statistics.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Statistics (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN OUT UINTN * pStatisticsSize,
+  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
+  );
+
+/**
+  This function stops a network interface.  This call is only valid
+  if the network interface is in the started state.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Stop (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  );
+
+/**
+  This function releases the memory buffers assigned in the Initialize() call.
+  Pending transmits and receives are lost, and interrupts are cleared and disabled.
+  After this call, only Initialize() and Stop() calls may be used.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Shutdown (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  );
+
+/**
+  Send a packet over the network.
+
+  This function places the packet specified by Header and Buffer on
+  the transmit queue.  This function performs a non-blocking transmit
+  operation.  When the transmit is complete, the buffer is returned
+  via the GetStatus() call.
+
+  This routine calls ::Ax88772Rx to empty the network adapter of
+  receive packets.  The routine then passes the transmit packet
+  to the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
+                                the Transmit() function.  If HeaderSize is non-zero, then
+                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
+                                and DestAddr and Protocol parameters must not be NULL.
+  @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
+                                data) to be transmitted through the network interface.
+  @param [in] pBuffer           A pointer to the packet (media header followed by data) to
+                                to be transmitted.  This parameter can not be NULL.  If
+                                HeaderSize is zero, then the media header is Buffer must
+                                already be filled in by the caller.  If HeaderSize is nonzero,
+                                then the media header will be filled in by the Transmit()
+                                function.
+  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.  If HeaderSize is nonzero and
+                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
+                                is used for the source HW MAC address.
+  @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.
+  @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
+                                this parameter is ignored.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
+  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Transmit (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINTN HeaderSize,
+  IN UINTN BufferSize,
+  IN VOID * pBuffer,
+  IN EFI_MAC_ADDRESS * pSrcAddr,
+  IN EFI_MAC_ADDRESS * pDestAddr,
+  IN UINT16 * pProtocol
+  );
+
+//------------------------------------------------------------------------------
+// Support Routines
+//------------------------------------------------------------------------------
+
+/**
+  Get the MAC address
+
+  This routine calls ::Ax88772UsbCommand to request the MAC
+  address from the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772MacAddressGet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  );
+
+/**
+  Set the MAC address
+
+  This routine calls ::Ax88772UsbCommand to set the MAC address
+  in the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the new MAC address.
+
+  @retval EFI_SUCCESS          The MAC address was set.
+  @retval other                The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88772MacAddressSet (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 * pMacAddress
+  );
+
+/**
+  Clear the multicast hash table
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88772MulticastClear (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  Enable a multicast address in the multicast hash table
+
+  This routine calls ::Ax88772Crc to compute the hash bit for
+  this MAC address.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
+
+**/
+VOID
+Ax88772MulticastSet (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 * pMacAddress
+  );
+
+/**
+  Start the link negotiation
+
+  This routine calls ::Ax88772PhyWrite to start the PHY's link
+  negotiation.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The link negotiation was started.
+  @retval other                Failed to start the link negotiation.
+
+**/
+EFI_STATUS
+Ax88772NegotiateLinkStart (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  Complete the negotiation of the PHY link
+
+  This routine calls ::Ax88772PhyRead to determine if the
+  link negotiation is complete.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in, out] pPollCount  Address of number of times this routine was polled
+  @param [out] pbComplete      Address of boolean to receive complate status.
+  @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
+  @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
+  @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772NegotiateLinkComplete (
+  IN NIC_DEVICE * pNicDevice,
+  IN OUT UINTN * pPollCount,
+  OUT BOOLEAN * pbComplete,
+  OUT BOOLEAN * pbLinkUp,
+  OUT BOOLEAN * pbHiSpeed,
+  OUT BOOLEAN * pbFullDuplex
+  );
+
+/**
+  Read a register from the PHY
+
+  This routine calls ::Ax88772UsbCommand to read a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data is available.
+  @retval other                The PHY data is not valid.
+
+**/
+EFI_STATUS
+Ax88772PhyRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN OUT UINT16 * pPhyData
+  );
+
+/**
+  Write to a PHY register
+
+  This routine calls ::Ax88772UsbCommand to write a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in] PhyData          Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data was written.
+  @retval other                Failed to wwrite the PHY register.
+
+**/
+EFI_STATUS
+Ax88772PhyWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN UINT16 PhyData
+  );
+
+/**
+  Reset the AX88772
+
+  This routine uses ::Ax88772UsbCommand to reset the network
+  adapter.  This routine also uses ::Ax88772PhyWrite to reset
+  the PHY.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772Reset (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+VOID
+Ax88772ChkLink (
+  IN NIC_DEVICE * pNicDevice,
+  IN BOOLEAN bUpdateLink
+  );
+
+/**
+  Receive a frame from the network.
+
+  This routine polls the USB receive interface for a packet.  If a packet
+  is available, this routine adds the receive packet to the list of
+  pending receive packets.
+
+  This routine calls ::Ax88772NegotiateLinkComplete to verify
+  that the link is up.  This routine also calls ::SN_Reset to
+  reset the network adapter when necessary.  Finally this
+  routine attempts to receive one or more packets from the
+  network adapter.
+
+  @param [in] pNicDevice  Pointer to the NIC_DEVICE structure
+  @param [in] bUpdateLink TRUE = Update link status
+
+**/
+VOID
+Ax88772Rx (
+  IN NIC_DEVICE * pNicDevice,
+  IN BOOLEAN bUpdateLink
+  );
+
+/**
+  Enable or disable the receiver
+
+  This routine calls ::Ax88772UsbCommand to update the
+  receiver state.  This routine also calls ::Ax88772MacAddressSet
+  to establish the MAC address for the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RxFilter         Simple network RX filter mask value
+
+  @retval EFI_SUCCESS          The MAC address was set.
+  @retval other                The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88772RxControl (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 RxFilter
+  );
+
+EFI_STATUS
+Ax88772ReloadSrom  (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+/**
+  Read an SROM location
+
+  This routine calls ::Ax88772UsbCommand to read data from the
+  SROM.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] Address          SROM address
+  @param [out] pData           Buffer to receive the data
+
+  @retval EFI_SUCCESS          The read was successful
+  @retval other                The read failed
+
+**/
+EFI_STATUS
+Ax88772SromRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  OUT UINT16 * pData
+  );
+
+
+EFI_STATUS
+Ax88772EnableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+
+EFI_STATUS
+Ax88772DisableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  );
+
+EFI_STATUS
+Ax88772SromWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  OUT UINT16 * pData
+  );
+#if 0
+/**
+  This routine is called at a regular interval to poll for
+  receive packets.
+
+  This routine polls the link state and gets any receive packets
+  by calling ::Ax88772Rx.
+
+  @param [in] Event            Timer event
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88772Timer (
+  IN EFI_EVENT Event,
+  IN NIC_DEVICE * pNicDevice
+  );
+#endif
+/**
+  Send a command to the USB device.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pRequest         Pointer to the request structure
+  @param [in, out] pBuffer     Data buffer address
+
+  @retval EFI_SUCCESS          The USB transfer was successful
+  @retval other                The USB transfer failed
+
+**/
+EFI_STATUS
+Ax88772UsbCommand (
+  IN NIC_DEVICE * pNicDevice,
+  IN USB_DEVICE_REQUEST * pRequest,
+  IN OUT VOID * pBuffer
+  );
+
+BOOLEAN
+Ax88772GetLinkStatus (
+  IN NIC_DEVICE * pNicDevice
+) ;
+
+//------------------------------------------------------------------------------
+// EFI Component Name Protocol Support
+//------------------------------------------------------------------------------
+
+extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;  ///<  Component name protocol declaration
+extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2; ///<  Component name 2 protocol declaration
+
+/**
+  Retrieves a Unicode string that is the user readable name of the driver.
+
+  This function retrieves the user readable name of a driver in the form of a
+  Unicode string. If the driver specified by This has a user readable name in
+  the language specified by Language, then a pointer to the driver name is
+  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+  by This does not support the language specified by Language,
+  then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language. This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified
+                                in RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppDriverName     A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                driver specified by This in the language
+                                specified by Language.
+
+  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
+                                This and the language specified by Language was
+                                returned in DriverName.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER DriverName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+GetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppDriverName
+  );
+
+
+/**
+  Retrieves a Unicode string that is the user readable name of the controller
+  that is being managed by a driver.
+
+  This function retrieves the user readable name of the controller specified by
+  ControllerHandle and ChildHandle in the form of a Unicode string. If the
+  driver specified by This has a user readable name in the language specified by
+  Language, then a pointer to the controller name is returned in ControllerName,
+  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
+  managing the controller specified by ControllerHandle and ChildHandle,
+  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
+  support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] ControllerHandle  The handle of a controller that the driver
+                                specified by This is managing.  This handle
+                                specifies the controller whose name is to be
+                                returned.
+  @param [in] ChildHandle       The handle of the child controller to retrieve
+                                the name of.  This is an optional parameter that
+                                may be NULL.  It will be NULL for device
+                                drivers.  It will also be NULL for a bus drivers
+                                that wish to retrieve the name of the bus
+                                controller.  It will not be NULL for a bus
+                                driver that wishes to retrieve the name of a
+                                child controller.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language.  This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified in
+                                RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppControllerName A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                controller specified by ControllerHandle and
+                                ChildHandle in the language specified by
+                                Language from the point of view of the driver
+                                specified by This.
+
+  @retval EFI_SUCCESS           The Unicode string for the user readable name in
+                                the language specified by Language for the
+                                driver specified by This was returned in
+                                DriverName.
+  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+                                EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
+                                managing the controller specified by
+                                ControllerHandle and ChildHandle.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+GetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  EFI_HANDLE ControllerHandle,
+  IN OPTIONAL EFI_HANDLE ChildHandle,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppControllerName
+  );
+
+
+EFI_STATUS
+Ax88772BulkIn(
+  IN NIC_DEVICE * pNicDevice
+);
+
+//------------------------------------------------------------------------------
+
+#endif  //  _AX88772_H_
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.c
new file mode 100644
index 000000000000..a905dc548197
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/Ax88772.c
@@ -0,0 +1,1296 @@
+/** @file
+  Implement the interface to the AX88772 Ethernet controller.
+
+  This module implements the interface to the ASIX AX88772
+  USB to Ethernet MAC with integrated 10/100 PHY.  Note that this implementation
+  only supports the integrated PHY since no other test cases were available.
+
+  Copyright (c) 2011, Intel Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88772.h"
+
+
+/**
+  Compute the CRC
+
+  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
+
+  @returns The CRC-32 value associated with this MAC address
+
+**/
+UINT32
+Ax88772Crc (
+  IN UINT8 * pMacAddress
+  )
+{
+  UINT32 BitNumber;
+  INT32 Carry;
+  INT32 Crc;
+  UINT32 Data;
+  UINT8 * pEnd;
+
+  //
+  //  Walk the MAC address
+  //
+  Crc = -1;
+  pEnd = &pMacAddress[ PXE_HWADDR_LEN_ETHER ];
+  while ( pEnd > pMacAddress ) {
+    Data = *pMacAddress++;
+
+
+    //
+    //  CRC32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
+    //
+    //          1 0000 0100 1100 0001 0001 1101 1011 0111
+    //
+    for ( BitNumber = 0; 8 > BitNumber; BitNumber++ ) {
+      Carry = (( Crc >> 31 ) & 1 ) ^ ( Data & 1 );
+      Crc <<= 1;
+      if ( 0 != Carry ) {
+        Crc ^= 0x04c11db7;
+      }
+      Data >>= 1;
+    }
+  }
+
+  //
+  //  Return the CRC value
+  //
+
+  return (UINT32) Crc;
+}
+
+
+/**
+  Get the MAC address
+
+  This routine calls ::Ax88772UsbCommand to request the MAC
+  address from the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772MacAddressGet (
+  IN NIC_DEVICE * pNicDevice,
+  OUT UINT8 * pMacAddress
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Set the register address.
+  //
+  SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+                       | USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_MAC_ADDRESS_READ;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = PXE_HWADDR_LEN_ETHER;
+
+  //
+  //  Read the PHY register
+  //
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               pMacAddress );
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+
+/**
+  Set the MAC address
+
+  This routine calls ::Ax88772UsbCommand to set the MAC address
+  in the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the new MAC address.
+
+  @retval EFI_SUCCESS          The MAC address was set.
+  @retval other                The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88772MacAddressSet (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 * pMacAddress
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Set the register address.
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_MAC_ADDRESS_WRITE;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = PXE_HWADDR_LEN_ETHER;
+
+  //
+  //  Read the PHY register
+  //
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               pMacAddress );
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+/**
+  Clear the multicast hash table
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88772MulticastClear (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  int i = 0;
+  //
+  // Clear the multicast hash table
+  //
+  for ( i = 0 ; i < 8 ; i ++ )
+     pNicDevice->MulticastHash[i] = 0;
+}
+
+
+/**
+  Enable a multicast address in the multicast hash table
+
+  This routine calls ::Ax88772Crc to compute the hash bit for
+  this MAC address.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
+
+**/
+VOID
+Ax88772MulticastSet (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 * pMacAddress
+  )
+{
+  UINT32 Crc;
+
+  //
+  //  Compute the CRC on the destination address
+  //
+  Crc = Ax88772Crc ( pMacAddress ) >> 26;
+
+  //
+  //  Set the bit corresponding to the destination address
+  //
+  pNicDevice->MulticastHash [ Crc >> 3 ] |= ( 1<< (Crc& 7));
+
+}
+
+/**
+  Start the link negotiation
+
+  This routine calls ::Ax88772PhyWrite to start the PHY's link
+  negotiation.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The link negotiation was started.
+  @retval other                Failed to start the link negotiation.
+
+**/
+EFI_STATUS
+Ax88772NegotiateLinkStart (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  UINT16 Control;
+  EFI_STATUS Status;
+
+  //
+  // Set the supported capabilities.
+  //
+  Status = Ax88772PhyWrite ( pNicDevice,
+                             PHY_ANAR,
+                             AN_CSMA_CD
+                             | AN_TX_FDX | AN_TX_HDX
+                             | AN_10_FDX | AN_10_HDX | AN_FCS );
+  if ( !EFI_ERROR ( Status )) {
+    //
+    // Set the link speed and duplex
+    //
+    Control = BMCR_AUTONEGOTIATION_ENABLE
+            | BMCR_RESTART_AUTONEGOTIATION;
+    if ( pNicDevice->b100Mbps ) {
+      Control |= BMCR_100MBPS;
+    }
+    if ( pNicDevice->bFullDuplex ) {
+      Control |= BMCR_FULL_DUPLEX;
+    }
+    Status = Ax88772PhyWrite ( pNicDevice, PHY_BMCR, Control );
+
+    if (!EFI_ERROR(Status))
+        gBS->Stall(3000000);
+  }
+  return Status;
+}
+
+
+
+/**
+  Complete the negotiation of the PHY link
+
+  This routine calls ::Ax88772PhyRead to determine if the
+  link negotiation is complete.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in, out] pPollCount  Address of number of times this routine was polled
+  @param [out] pbComplete      Address of boolean to receive complate status.
+  @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
+  @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
+  @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772NegotiateLinkComplete (
+  IN NIC_DEVICE * pNicDevice,
+  IN OUT UINTN * pPollCount,
+  OUT BOOLEAN * pbComplete,
+  OUT BOOLEAN * pbLinkUp,
+  OUT BOOLEAN * pbHiSpeed,
+  OUT BOOLEAN * pbFullDuplex
+  )
+{
+  UINT16 Mask;
+  UINT16 PhyData;
+  EFI_STATUS  Status;
+
+  //
+  //  Determine if the link is up.
+  //
+  *pbComplete = FALSE;
+
+  //
+  //  Get the link status
+  //
+  Status = Ax88772PhyRead ( pNicDevice,
+                            PHY_BMSR,
+                            &PhyData );
+
+  if ( !EFI_ERROR ( Status )) {
+    *pbLinkUp = (BOOLEAN)( 0 != ( PhyData & BMSR_LINKST ));
+    if ( 0 == *pbLinkUp ) {
+    } else {
+      *pbComplete = (BOOLEAN)( 0 != ( PhyData & 0x20 ));
+      if ( 0 == *pbComplete ) {
+      } else {
+        Status = Ax88772PhyRead ( pNicDevice,
+                                  PHY_ANLPAR,
+                                  &PhyData );
+        if ( !EFI_ERROR ( Status )) {
+          //
+          //  Autonegotiation is complete
+          //  Determine the link speed.
+          //
+          *pbHiSpeed = (BOOLEAN)( 0 != ( PhyData & ( AN_TX_FDX | AN_TX_HDX )));
+
+          //
+          //  Determine the link duplex.
+          //
+          Mask = ( *pbHiSpeed ) ? AN_TX_FDX : AN_10_FDX;
+          *pbFullDuplex = (BOOLEAN)( 0 != ( PhyData & Mask ));
+        }
+      }
+    }
+  } else {
+  }
+  return Status;
+}
+
+
+/**
+  Read a register from the PHY
+
+  This routine calls ::Ax88772UsbCommand to read a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data is available.
+  @retval other                The PHY data is not valid.
+
+**/
+EFI_STATUS
+Ax88772PhyRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN OUT UINT16 * pPhyData
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Request access to the PHY
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_PHY_ACCESS_SOFTWARE;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+  if ( !EFI_ERROR ( Status )) {
+    //
+    //  Read the PHY register address.
+    //
+    SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+                         | USB_REQ_TYPE_VENDOR
+                         | USB_TARGET_DEVICE;
+    SetupMsg.Request = CMD_PHY_REG_READ;
+    SetupMsg.Value = pNicDevice->PhyId;
+    SetupMsg.Index = RegisterAddress;
+    SetupMsg.Length = sizeof ( *pPhyData );
+    Status = Ax88772UsbCommand ( pNicDevice,
+                                 &SetupMsg,
+                                 pPhyData );
+    if ( !EFI_ERROR ( Status )) {
+
+      //
+      //  Release the PHY to the hardware
+      //
+      SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                           | USB_TARGET_DEVICE;
+      SetupMsg.Request = CMD_PHY_ACCESS_HARDWARE;
+      SetupMsg.Value = 0;
+      SetupMsg.Index = 0;
+      SetupMsg.Length = 0;
+      Status = Ax88772UsbCommand ( pNicDevice,
+                                   &SetupMsg,
+                                   NULL );
+    }
+  }
+
+  //
+  //  Return the operation status.
+  //
+  return Status;
+}
+
+
+/**
+  Write to a PHY register
+
+  This routine calls ::Ax88772UsbCommand to write a PHY register.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RegisterAddress  Number of the register to read.
+  @param [in] PhyData          Address of a buffer to receive the PHY register value
+
+  @retval EFI_SUCCESS          The PHY data was written.
+  @retval other                Failed to wwrite the PHY register.
+
+**/
+EFI_STATUS
+Ax88772PhyWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT8 RegisterAddress,
+  IN UINT16 PhyData
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Request access to the PHY
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_PHY_ACCESS_SOFTWARE;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+  if ( !EFI_ERROR ( Status )) {
+    //
+    //  Write the PHY register
+    //
+    SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                         | USB_TARGET_DEVICE;
+    SetupMsg.Request = CMD_PHY_REG_WRITE;
+    SetupMsg.Value = pNicDevice->PhyId;
+    SetupMsg.Index = RegisterAddress;
+    SetupMsg.Length = sizeof ( PhyData );
+    Status = Ax88772UsbCommand ( pNicDevice,
+                                 &SetupMsg,
+                                 &PhyData );
+    if ( !EFI_ERROR ( Status )) {
+
+      //
+      //  Release the PHY to the hardware
+      //
+      SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                           | USB_TARGET_DEVICE;
+      SetupMsg.Request = CMD_PHY_ACCESS_HARDWARE;
+      SetupMsg.Value = 0;
+      SetupMsg.Index = 0;
+      SetupMsg.Length = 0;
+      Status = Ax88772UsbCommand ( pNicDevice,
+                                   &SetupMsg,
+                                   NULL );
+    }
+  }
+
+  //
+  //  Return the operation status.
+  //
+  return Status;
+}
+
+
+/**
+  Reset the AX88772
+
+  This routine uses ::Ax88772UsbCommand to reset the network
+  adapter.  This routine also uses ::Ax88772PhyWrite to reset
+  the PHY.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+
+  @retval EFI_SUCCESS          The MAC address is available.
+  @retval other                The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772Reset (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+  EFI_USB_IO_PROTOCOL *pUsbIo;
+
+  pUsbIo = pNicDevice->pUsbIo;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                           | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_PHY_ACCESS_HARDWARE;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                          | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_PHY_SELECT;
+  SetupMsg.Value = SPHY_PSEL;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_RESET;
+  SetupMsg.Value = SRR_IPRL ;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_RESET;
+  SetupMsg.Value = SRR_IPPD | SRR_IPRL ;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  gBS->Stall ( 200000 );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_RESET;
+  SetupMsg.Value =  SRR_IPRL  ;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  gBS->Stall ( 200000 );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_RESET;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_PHY_SELECT;
+  SetupMsg.Value = SPHY_PSEL;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_RESET;
+  SetupMsg.Value =  SRR_IPRL | SRR_BZ | SRR_BZTYPE;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_RX_CONTROL_WRITE;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_ERROR(Status)) goto err;
+
+  if (!pNicDevice->Flag772A) {
+    SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                         | USB_TARGET_DEVICE;
+    SetupMsg.Request = CMD_RXQTC;
+#if RXTHOU
+    /*size cannot exceed 3K*/
+    //SetupMsg.Value = 0x0;
+    //SetupMsg.Index = 0x8001;
+    /*size cannot exceed 16K*/
+    SetupMsg.Value = 0x8300;
+    SetupMsg.Index = 0x8500;
+    /*size cannot exceed 32K*/
+    //SetupMsg.Value = 0x8784;
+    //SetupMsg.Index = 0x8A00;
+    SetupMsg.Length = 0;
+#else
+    SetupMsg.Value = 0x8000;
+    SetupMsg.Index = 0x8001;
+#endif
+    Status = Ax88772UsbCommand ( pNicDevice,
+                                 &SetupMsg,
+                                 NULL );
+  }
+err:
+  return Status;
+}
+
+/**
+  Enable or disable the receiver
+
+  This routine calls ::Ax88772UsbCommand to update the
+  receiver state.  This routine also calls ::Ax88772MacAddressSet
+  to establish the MAC address for the network adapter.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] RxFilter         Simple network RX filter mask value
+
+  @retval EFI_SUCCESS          The MAC address was set.
+  @retval other                The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88772RxControl (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 RxFilter
+  )
+{
+  UINT16 MediumStatus;
+  UINT16 RxControl;
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status = EFI_SUCCESS;
+
+  //
+  // Enable the receiver if something is to be received
+  //
+  if ( 0 != RxFilter ) {
+    //
+    //  Enable the receiver
+    //
+    SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+                         | USB_REQ_TYPE_VENDOR
+                         | USB_TARGET_DEVICE;
+    SetupMsg.Request = CMD_MEDIUM_STATUS_READ;
+    SetupMsg.Value = 0;
+    SetupMsg.Index = 0;
+    SetupMsg.Length = sizeof ( MediumStatus );
+    Status = Ax88772UsbCommand ( pNicDevice,
+                                 &SetupMsg,
+                                 &MediumStatus );
+    if ( !EFI_ERROR ( Status )) {
+      if ( 0 == ( MediumStatus & MS_RE )) {
+        MediumStatus |= MS_RE | MS_ONE;
+
+        if ( pNicDevice->bFullDuplex )
+          MediumStatus |= MS_TFC | MS_RFC | MS_FD;
+        else
+          MediumStatus &= ~(MS_TFC | MS_RFC | MS_FD);
+
+        if ( pNicDevice->b100Mbps )
+          MediumStatus |= MS_PS;
+        else
+          MediumStatus &= ~MS_PS;
+
+        SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                             | USB_TARGET_DEVICE;
+        SetupMsg.Request = CMD_MEDIUM_STATUS_WRITE;
+        SetupMsg.Value = MediumStatus;
+        SetupMsg.Index = 0;
+        SetupMsg.Length = 0;
+        Status = Ax88772UsbCommand ( pNicDevice,
+                                     &SetupMsg,
+                                     NULL );
+
+        if (EFI_ERROR(Status))
+              goto EXIT;
+      }
+    } else {
+        goto EXIT;
+    }
+  }
+  RxControl = RXC_SO;
+  if (!pNicDevice->Flag772A)
+    RxControl |= RXC_RH1M;
+
+  //
+  //  Enable multicast if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
+      RxControl |= RXC_AM;
+      //
+      //  Update the multicast hash table
+      //
+      SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                           | USB_TARGET_DEVICE;
+      SetupMsg.Request = CMD_MULTICAST_HASH_WRITE;
+      SetupMsg.Value = 0;
+      SetupMsg.Index = 0;
+      SetupMsg.Length = sizeof ( pNicDevice ->MulticastHash );
+      Status = Ax88772UsbCommand ( pNicDevice,
+                                   &SetupMsg,
+                                   &pNicDevice->MulticastHash );
+
+      if (EFI_ERROR(Status))
+              goto EXIT;
+  }
+
+  //
+  //  Enable all multicast if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST )) {
+      RxControl |= RXC_AMALL;
+  }
+
+  //
+  //  Enable broadcast if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST )) {
+      RxControl |= RXC_AB;
+  }
+
+  //
+  //  Enable promiscuous mode if requested
+  //
+  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS )) {
+      RxControl |= RXC_PRO;
+  }
+
+  //
+  //  Update the receiver control
+  //
+  if (pNicDevice->CurRxControl != RxControl) {
+    SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                         | USB_TARGET_DEVICE;
+    SetupMsg.Request = CMD_RX_CONTROL_WRITE;
+#if RXTHOU
+    if (pNicDevice->Flag772A)
+      RxControl |= 0x0300;
+#endif
+    if (pNicDevice->Flag772A)
+      RxControl &= ~(RXC_MFB);
+    SetupMsg.Value = RxControl;
+    SetupMsg.Index = 0;
+    SetupMsg.Length = 0;
+    Status = Ax88772UsbCommand ( pNicDevice,
+                                 &SetupMsg,
+                                 NULL );
+    if ( !EFI_ERROR ( Status ))
+      pNicDevice->CurRxControl = RxControl;
+  }
+
+  //
+  // Return the operation status
+  //
+EXIT:
+  return Status;
+}
+
+
+
+EFI_STATUS
+Ax88772ReloadSrom  (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Read a value from the SROM
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+
+  SetupMsg.Request = CMD_WRITE_GPIOS;
+  SetupMsg.Value = 0x80;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0 ;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_SUCCESS == Status)
+          gBS->Stall(500000);
+
+  return Status;
+
+}
+
+
+/**
+  Read an SROM location
+
+  This routine calls ::Ax88772UsbCommand to read data from the
+  SROM.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] Address          SROM address
+  @param [out] pData           Buffer to receive the data
+
+  @retval EFI_SUCCESS          The read was successful
+  @retval other                The read failed
+
+**/
+EFI_STATUS
+Ax88772SromRead (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  OUT UINT16 * pData
+  )
+{
+
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Read a value from the SROM
+  //
+  SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+                       | USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+  SetupMsg.Request = CMD_SROM_READ;
+  SetupMsg.Value = (UINT16) Address;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = sizeof ( *pData );
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               pData );
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+EFI_STATUS
+Ax88772EnableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Read a value from the SROM
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+
+  SetupMsg.Request = CMD_SROM_WRITE_EN;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0 ;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  if (EFI_SUCCESS == Status)
+          gBS->Stall(500000);
+
+  return Status;
+
+}
+
+
+EFI_STATUS
+Ax88772DisableSromWrite  (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  //
+  //  Read a value from the SROM
+  //
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+
+  SetupMsg.Request = CMD_SROM_WRITE_DIS;
+  SetupMsg.Value = 0;
+  SetupMsg.Index = 0;
+  SetupMsg.Length = 0;
+  Status = Ax88772UsbCommand ( pNicDevice,
+                      &SetupMsg,
+                      NULL );
+
+  if (EFI_SUCCESS == Status)
+          gBS->Stall(500000);
+
+  return Status;
+
+}
+
+/**
+  Write an SROM location
+
+  This routine calls ::Ax88772UsbCommand to write data from the
+  SROM.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] Address          SROM address
+  @param [out] pData           Buffer of data to write
+
+  @retval EFI_SUCCESS          The write was successful
+  @retval other                The write failed
+
+**/
+EFI_STATUS
+Ax88772SromWrite (
+  IN NIC_DEVICE * pNicDevice,
+  IN UINT32 Address,
+  IN UINT16 * pData
+  )
+{
+
+  USB_DEVICE_REQUEST SetupMsg;
+  EFI_STATUS Status;
+
+  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                       | USB_TARGET_DEVICE;
+
+  SetupMsg.Request = CMD_SROM_WRITE;
+  SetupMsg.Value = (UINT16) Address;
+  SetupMsg.Index = (UINT16) (*pData);
+  SetupMsg.Length = 0;
+
+  Status = Ax88772UsbCommand ( pNicDevice,
+                               &SetupMsg,
+                               NULL );
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+/**
+  Send a command to the USB device.
+
+  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
+  @param [in] pRequest         Pointer to the request structure
+  @param [in, out] pBuffer     Data buffer address
+
+  @retval EFI_SUCCESS          The USB transfer was successful
+  @retval other                The USB transfer failed
+
+**/
+EFI_STATUS
+Ax88772UsbCommand (
+  IN NIC_DEVICE * pNicDevice,
+  IN USB_DEVICE_REQUEST * pRequest,
+  IN OUT VOID * pBuffer
+  )
+{
+  UINT32 CmdStatus;
+  EFI_USB_DATA_DIRECTION Direction;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  EFI_STATUS Status;
+
+  //
+  // Determine the transfer direction
+  //
+  Direction = EfiUsbNoData;
+  if ( 0 != pRequest->Length ) {
+    Direction = ( 0 != ( pRequest->RequestType & USB_ENDPOINT_DIR_IN ))
+              ? EfiUsbDataIn : EfiUsbDataOut;
+  }
+
+  //
+  // Issue the command
+  //
+  pUsbIo = pNicDevice->pUsbIo;
+  Status = pUsbIo->UsbControlTransfer ( pUsbIo,
+                                        pRequest,
+                                        Direction,
+                                        USB_BUS_TIMEOUT,
+                                        pBuffer,
+                                        pRequest->Length,
+                                        &CmdStatus );
+
+  //
+  // Determine the operation status
+  //
+  if ( !EFI_ERROR ( Status )) {
+    Status = CmdStatus;
+  } else {
+    //
+    // Only use status values associated with the Simple Network protocol
+    //
+    if ( EFI_TIMEOUT == Status ) {
+      Status = EFI_DEVICE_ERROR;
+    }
+  }
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+BOOLEAN
+Ax88772GetLinkStatus (
+  IN NIC_DEVICE * pNicDevice
+)
+{
+  UINT32 CmdStatus;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  UINT64    IntData = 0;
+  UINTN     IntDataLeng = 8;
+  EFI_STATUS Status;
+
+  //
+  // Issue the command
+  //
+  pUsbIo = pNicDevice->pUsbIo;
+  Status = pUsbIo->UsbSyncInterruptTransfer( pUsbIo,
+                                        USB_ENDPOINT_DIR_IN | INTERRUPT_ENDPOINT,
+                                        &IntData,
+                                        &IntDataLeng,
+                                        USB_BUS_TIMEOUT,
+                                        &CmdStatus );
+
+  if ( EFI_ERROR(Status) || EFI_ERROR(CmdStatus) || 0 == IntDataLeng) {
+      return FALSE;
+  }
+  return (IntData & 0x800000)? FALSE : TRUE;
+
+}
+
+#if RXTHOU
+EFI_STATUS
+Ax88772BulkIn(
+  IN NIC_DEVICE * pNicDevice
+)
+{
+  int i;
+  UINTN LengthInBytes = 0;
+  UINTN TMP_LENG = AX88772_MAX_BULKIN_SIZE;
+  UINTN ORI_TMP_LENG = 0;
+  EFI_STATUS Status = EFI_DEVICE_ERROR;
+  EFI_USB_IO_PROTOCOL *pUsbIo;
+  UINT32 TransferStatus = 0;
+  UINT16 tmpPktCnt = 0;
+  UINT16 * tmpHdr = (UINT16 *)pNicDevice->pBulkInbuf;
+  USB_DEVICE_REQUEST SetupMsg;
+
+  pUsbIo = pNicDevice->pUsbIo;
+  for ( i = 0 ; i < (AX88772_MAX_BULKIN_SIZE / 512) && pUsbIo != NULL; i++) {
+    VOID* tmpAddr = 0;
+
+    tmpPktCnt = 0;
+    tmpAddr = (VOID*) &pNicDevice->pBulkInbuf[LengthInBytes];
+    ORI_TMP_LENG = TMP_LENG;
+    Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
+                          USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
+                          tmpAddr,
+                          &TMP_LENG,
+                          BULKIN_TIMEOUT,
+                          &TransferStatus );
+
+    if (ORI_TMP_LENG == TMP_LENG) {
+      Status = EFI_NOT_READY;
+      goto no_pkt;
+    }
+
+    if (( !EFI_ERROR ( Status )) &&
+        ( !EFI_ERROR ( TransferStatus )) &&
+        TMP_LENG != 0) {
+      LengthInBytes += TMP_LENG;
+      if ((TMP_LENG % 512) != 0) {
+        goto done;
+      }
+    } else if (( !EFI_ERROR ( Status )) &&
+               ( !EFI_ERROR ( TransferStatus )) &&
+               (TMP_LENG == 0)) {
+      Status = EFI_NOT_READY;
+      goto done;
+    } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT == TransferStatus) {
+      SetupMsg.RequestType = USB_REQ_TYPE_STANDARD | 0x02;
+      SetupMsg.Request = 0x01;
+      SetupMsg.Value =  0;
+      SetupMsg.Index = 0x82;
+      SetupMsg.Length = 0;
+      Status = Ax88772UsbCommand ( pNicDevice,
+                                   &SetupMsg,
+                                   NULL );
+      Status = EFI_NOT_READY;
+      goto done;
+    } else {
+      Status = EFI_DEVICE_ERROR;
+      goto done;
+    }
+  }
+done:
+  if (LengthInBytes != 0) {
+    UINT16 tmpLen;
+    UINT16 tmpLenBar;
+    UINT16 tmpTotalLen = 0;
+    UINTN TotalLen = LengthInBytes;
+
+    do {
+      tmpLen = (*tmpHdr) & 0x7FF;
+      tmpLenBar = *(tmpHdr + 1);
+      tmpTotalLen = ((tmpLen + 4 + 1) & 0xfffe);
+
+      if ((tmpLen & 0x7FF) + (tmpLenBar & 0x7FF) == 0x7FF) {
+        tmpPktCnt++;
+      } else {
+        if ( tmpPktCnt != 0) {
+          break;
+        }
+        Status = EFI_NOT_READY;
+        goto no_pkt;
+      }
+      tmpHdr += (tmpTotalLen / 2);
+      TotalLen -= tmpTotalLen;
+    } while (TotalLen > 0);
+
+  if (LengthInBytes >= 1000 && tmpPktCnt != 0) {
+    if ((pNicDevice->rxburst) == 1) {
+      SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                           | USB_TARGET_DEVICE;
+      SetupMsg.Request = CMD_RESET;
+      SetupMsg.Value =  SRR_IPRL;
+      SetupMsg.Index = 0;
+      SetupMsg.Length = 0;
+      Ax88772UsbCommand ( pNicDevice,
+                          &SetupMsg,
+                          NULL );
+    }
+
+    if (pNicDevice->rxburst < 2)
+    pNicDevice->rxburst++;
+
+  } else {
+    if (pNicDevice->rxburst >= 2) {
+      SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+                           | USB_TARGET_DEVICE;
+      SetupMsg.Request = CMD_RESET;
+      SetupMsg.Value =  SRR_IPRL| SRR_BZ | SRR_BZTYPE;
+      SetupMsg.Index = 0;
+      SetupMsg.Length = 0;
+      Ax88772UsbCommand ( pNicDevice,
+                          &SetupMsg,
+                          NULL );
+      }
+      pNicDevice->rxburst = 0;
+    }
+  }
+
+  if (tmpPktCnt != 0) {
+    pNicDevice->PktCnt = tmpPktCnt;
+    pNicDevice->pCurPktHdrOff = pNicDevice->pBulkInbuf;
+    pNicDevice->pCurPktOff = pNicDevice->pBulkInbuf + 4;
+    Status = EFI_SUCCESS;
+  }
+
+no_pkt:
+  return Status;
+}
+#else
+EFI_STATUS
+Ax88772BulkIn(
+  IN NIC_DEVICE * pNicDevice
+)
+{
+  int i;
+  UINTN LengthInBytes = 0;
+  UINTN TMP_LENG = AX88772_MAX_BULKIN_SIZE;
+  UINTN ORI_TMP_LENG = 0;
+  UINTN CURBufSize = AX88772_MAX_BULKIN_SIZE;
+  EFI_STATUS Status = EFI_DEVICE_ERROR;
+  EFI_USB_IO_PROTOCOL *pUsbIo;
+  UINT32 TransferStatus = 0;
+  UINT16 tmpPktCnt = 0;
+  UINT16 * tmpHdr = (UINT16 *)pNicDevice->pBulkInbuf;
+
+  pUsbIo = pNicDevice->pUsbIo;
+  for ( i = 0 ; i < (AX88772_MAX_BULKIN_SIZE / 512) && pUsbIo != NULL; i++) {
+    VOID* tmpAddr = 0;
+
+    tmpPktCnt = 0;
+    tmpAddr = (VOID*) &pNicDevice->pBulkInbuf[LengthInBytes];
+    ORI_TMP_LENG = TMP_LENG;
+    Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
+                          USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
+                          tmpAddr,
+                          &TMP_LENG,
+                          BULKIN_TIMEOUT,
+                          &TransferStatus );
+
+    if (ORI_TMP_LENG == TMP_LENG) {
+      Status = EFI_NOT_READY;
+      goto no_pkt;
+    }
+
+    if (( !EFI_ERROR ( Status )) &&
+        ( !EFI_ERROR ( TransferStatus )) &&
+        TMP_LENG != 0) {
+      UINT16 tmpLen;
+      UINT16 tmpLenBar;
+      UINT16 tmpTotalLen = 0;
+
+      LengthInBytes += TMP_LENG;
+      CURBufSize = CURBufSize - TMP_LENG;
+      TMP_LENG = CURBufSize;
+      do {
+        tmpLen = *tmpHdr;
+        tmpLenBar = *(tmpHdr + 1);
+        tmpTotalLen += ((tmpLen + 4 + 1) & 0xfffe);
+
+        if (((tmpLen ^ tmpLenBar) == 0xffff))  {
+          if (tmpTotalLen == LengthInBytes) {
+            tmpPktCnt++;
+            Status = EFI_SUCCESS;
+            goto done;
+          } else if (tmpTotalLen > LengthInBytes) {
+            break;
+          }
+        } else if (((tmpLen ^ tmpLenBar) != 0xffff)) {
+          if ( tmpPktCnt != 0) {
+            Status = EFI_SUCCESS;
+            goto done;
+          }
+          Status = EFI_NOT_READY;
+          goto no_pkt;
+        }
+        tmpHdr += (tmpTotalLen / 2);
+        tmpPktCnt++;
+      }while (tmpTotalLen < LengthInBytes);
+    } else if (( !EFI_ERROR ( Status )) &&
+               ( !EFI_ERROR ( TransferStatus )) &&
+               (TMP_LENG == 0)) {
+      if ( tmpPktCnt != 0) {
+        Status = EFI_SUCCESS;
+        goto done;
+      }
+      Status = EFI_NOT_READY;
+      goto no_pkt;
+    } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT == TransferStatus) {
+      if ( tmpPktCnt != 0) {
+        Status = EFI_SUCCESS;
+        goto done;
+      }
+      Status = EFI_NOT_READY;
+      goto no_pkt;
+    } else {
+      if ( tmpPktCnt != 0) {
+        Status = EFI_SUCCESS;
+        goto done;
+      }
+      Status = EFI_DEVICE_ERROR;
+      goto no_pkt;
+    }
+  }
+done:
+  pNicDevice->PktCnt = tmpPktCnt;
+  pNicDevice->pCurPktHdrOff = pNicDevice->pBulkInbuf;
+  pNicDevice->pCurPktOff = pNicDevice->pBulkInbuf + 4;
+no_pkt:
+  return Status;
+}
+#endif
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/ComponentName.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/ComponentName.c
new file mode 100644
index 000000000000..8e2ba86f945e
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/ComponentName.c
@@ -0,0 +1,246 @@
+/** @file
+  UEFI Component Name(2) protocol implementation.
+
+  Copyright (c) 2011, Intel Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88772.h"
+
+/**
+  EFI Component Name Protocol declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gComponentName = {
+  GetDriverName,
+  GetControllerName,
+  "eng"
+};
+
+/**
+  EFI Component Name 2 Protocol declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
+  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) GetDriverName,
+  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) GetControllerName,
+  "en"
+};
+
+
+/**
+  Driver name table declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
+mDriverNameTable[] = {
+  {"eng;en", L"ASIX AX88772B Ethernet Driver 2.8.0"},
+  {NULL,  NULL}
+};
+
+
+/**
+  Controller name table declaration
+**/
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
+mControllerNameTable[] = {
+  {"eng;en", L"ASIX AX88772B USB Fast Ethernet Controller"},
+  {NULL,  NULL}
+};
+
+/**
+  Retrieves a Unicode string that is the user readable name of the driver.
+
+  This function retrieves the user readable name of a driver in the form of a
+  Unicode string. If the driver specified by This has a user readable name in
+  the language specified by Language, then a pointer to the driver name is
+  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+  by This does not support the language specified by Language,
+  then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language. This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified
+                                in RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppDriverName     A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                driver specified by This in the language
+                                specified by Language.
+
+  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
+                                This and the language specified by Language was
+                                returned in DriverName.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER DriverName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+GetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppDriverName
+  )
+{
+  EFI_STATUS Status;
+
+  Status = LookupUnicodeString2 (
+             pLanguage,
+             pThis->SupportedLanguages,
+             mDriverNameTable,
+             ppDriverName,
+             (BOOLEAN)(pThis == &gComponentName)
+             );
+
+  return Status;
+}
+
+/**
+  Retrieves a Unicode string that is the user readable name of the controller
+  that is being managed by a driver.
+
+  This function retrieves the user readable name of the controller specified by
+  ControllerHandle and ChildHandle in the form of a Unicode string. If the
+  driver specified by This has a user readable name in the language specified by
+  Language, then a pointer to the controller name is returned in ControllerName,
+  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
+  managing the controller specified by ControllerHandle and ChildHandle,
+  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
+  support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+                                EFI_COMPONENT_NAME_PROTOCOL instance.
+  @param [in] ControllerHandle  The handle of a controller that the driver
+                                specified by This is managing.  This handle
+                                specifies the controller whose name is to be
+                                returned.
+  @param [in] ChildHandle       The handle of the child controller to retrieve
+                                the name of.  This is an optional parameter that
+                                may be NULL.  It will be NULL for device
+                                drivers.  It will also be NULL for a bus drivers
+                                that wish to retrieve the name of the bus
+                                controller.  It will not be NULL for a bus
+                                driver that wishes to retrieve the name of a
+                                child controller.
+  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
+                                array indicating the language.  This is the
+                                language of the driver name that the caller is
+                                requesting, and it must match one of the
+                                languages specified in SupportedLanguages. The
+                                number of languages supported by a driver is up
+                                to the driver writer. Language is specified in
+                                RFC 3066 or ISO 639-2 language code format.
+  @param [out] ppControllerName A pointer to the Unicode string to return.
+                                This Unicode string is the name of the
+                                controller specified by ControllerHandle and
+                                ChildHandle in the language specified by
+                                Language from the point of view of the driver
+                                specified by This.
+
+  @retval EFI_SUCCESS           The Unicode string for the user readable name in
+                                the language specified by Language for the
+                                driver specified by This was returned in
+                                DriverName.
+  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+                                EFI_HANDLE.
+  @retval EFI_INVALID_PARAMETER Language is NULL.
+  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
+                                managing the controller specified by
+                                ControllerHandle and ChildHandle.
+  @retval EFI_UNSUPPORTED       The driver specified by This does not support
+                                the language specified by Language.
+
+**/
+
+
+#if PASS_SCT
+EFI_STATUS
+EFIAPI
+GetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  EFI_HANDLE ControllerHandle,
+  IN OPTIONAL EFI_HANDLE ChildHandle,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppControllerName
+  )
+{
+
+  EFI_STATUS                  Status;
+  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
+
+  //
+  // This is a device driver, so ChildHandle must be NULL.
+  //
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+  //
+  // Check Controller's handle
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &UsbIoProtocol,
+                  gDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (!EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+           ControllerHandle,
+           &gEfiUsbIoProtocolGuid,
+           gDriverBinding.DriverBindingHandle,
+           ControllerHandle
+           );
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Status != EFI_ALREADY_STARTED) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Status =  LookupUnicodeString2 (
+                    pLanguage,
+            pThis->SupportedLanguages,
+           mControllerNameTable,
+           ppControllerName,
+           (BOOLEAN)(pThis == &gComponentName)
+           );
+
+  return  Status;
+}
+#else
+EFI_STATUS
+EFIAPI
+GetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
+  IN  EFI_HANDLE ControllerHandle,
+  IN OPTIONAL EFI_HANDLE ChildHandle,
+  IN  CHAR8 * pLanguage,
+  OUT CHAR16 ** ppControllerName
+  )
+{
+  EFI_STATUS Status;
+
+  //
+  // Set the controller name
+  //
+  *ppControllerName = L"ASIX AX88772B USB Fast Ethernet Controller";
+  Status = EFI_SUCCESS;
+
+  //
+  // Return the operation status
+  //
+
+  return Status;
+}
+
+#endif
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/DriverBinding.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/DriverBinding.c
new file mode 100644
index 000000000000..5edb7cbb2630
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/DriverBinding.c
@@ -0,0 +1,637 @@
+/** @file
+  Implement the driver binding protocol for Asix AX88772 Ethernet driver.
+
+  Copyright (c) 2011-2013, Intel Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88772.h"
+#include <Library/MemoryAllocationLib.h>
+/**
+  Verify the controller type
+
+  @param [in] pThis                Protocol instance pointer.
+  @param [in] Controller           Handle of device to test.
+  @param [in] pRemainingDevicePath Not used.
+
+  @retval EFI_SUCCESS          This driver supports this device.
+  @retval other                This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+DriverSupported (
+  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
+  IN EFI_HANDLE Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
+  )
+{
+  EFI_USB_DEVICE_DESCRIPTOR Device;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  EFI_STATUS Status;
+
+  //
+  //  Connect to the USB stack
+  //
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &pUsbIo,
+                  pThis->DriverBindingHandle,
+                  Controller,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (!EFI_ERROR ( Status )) {
+    //
+    //  Get the interface descriptor to check the USB class and find a transport
+    //  protocol handler.
+    //
+    Status = pUsbIo->UsbGetDeviceDescriptor ( pUsbIo, &Device );
+    if (EFI_ERROR ( Status )) {
+      Status = EFI_UNSUPPORTED;
+    } else {
+      //
+      //  Validate the adapter
+      //
+      if ( VENDOR_ID == Device.IdVendor ) {
+        if (PRODUCT_AX88772B_ID != Device.IdProduct) {
+        } else if (PRODUCT_AX88772B_ASUS_ID == Device.IdProduct) {
+        } else if (PRODUCT_AX88772A_ID == Device.IdProduct) {
+        } else if (PRODUCT_ID == Device.IdProduct) {
+        } else {
+          Status = EFI_UNSUPPORTED;
+        }
+      } else if ( VENDOR_AX88772B_LENOVO_ID == Device.IdVendor ) {
+        if (PRODUCT_AX88772B_LENOVO_ID != Device.IdProduct) {
+          Status = EFI_UNSUPPORTED;
+        }
+      } else {
+        Status = EFI_UNSUPPORTED;
+      }
+    }
+
+    //
+    //  Done with the USB stack
+    //
+    gBS->CloseProtocol (
+           Controller,
+           &gEfiUsbIoProtocolGuid,
+           pThis->DriverBindingHandle,
+           Controller
+           );
+  }
+
+  //
+  //  Return the device supported status
+  //
+  return Status;
+}
+
+
+/**
+  Start this driver on Controller by opening UsbIo and DevicePath protocols.
+  Initialize PXE structures, create a copy of the Controller Device Path with the
+  NIC's MAC address appended to it, install the NetworkInterfaceIdentifier protocol
+  on the newly created Device Path.
+
+  @param [in] pThis                Protocol instance pointer.
+  @param [in] Controller           Handle of device to work with.
+  @param [in] pRemainingDevicePath Not used, always produce all possible children.
+
+  @retval EFI_SUCCESS          This driver is added to Controller.
+  @retval other                This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+DriverStart (
+  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
+  IN EFI_HANDLE Controller,
+  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
+  )
+{
+  EFI_STATUS Status;
+  NIC_DEVICE *pNicDevice;
+  UINTN LengthInBytes;
+  EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath = NULL;
+  MAC_ADDR_DEVICE_PATH MacDeviceNode;
+  EFI_USB_DEVICE_DESCRIPTOR Device;
+
+  //
+  //  Allocate the device structure
+  //
+  LengthInBytes = sizeof ( *pNicDevice );
+  Status = gBS->AllocatePool (
+                  EfiRuntimeServicesData,
+                  LengthInBytes,
+                  (VOID **) &pNicDevice
+                  );
+
+  if (EFI_ERROR (Status)) {
+    goto ERR;
+  }
+
+  //
+  //  Set the structure signature
+  //
+  ZeroMem ( pNicDevice, LengthInBytes );
+  pNicDevice->Signature = DEV_SIGNATURE;
+
+  Status = gBS->OpenProtocol (
+                    Controller,
+                    &gEfiUsbIoProtocolGuid,
+                    (VOID **) &pNicDevice->pUsbIo,
+                    pThis->DriverBindingHandle,
+                    Controller,
+                    EFI_OPEN_PROTOCOL_BY_DRIVER
+                    );
+
+  if (EFI_ERROR (Status)) {
+    goto ERR;
+  }
+
+  pNicDevice->Flag772A = FALSE;
+  pNicDevice->pUsbIo->UsbGetDeviceDescriptor ( pNicDevice->pUsbIo, &Device );
+  if ((PRODUCT_AX88772A_ID == Device.IdProduct) ||
+      (PRODUCT_ID == Device.IdProduct))
+    pNicDevice->Flag772A = TRUE;
+  //
+  //  Initialize the simple network protocol
+  //
+  Status = SN_Setup ( pNicDevice );
+
+  if (EFI_ERROR(Status)){
+    gBS->CloseProtocol (
+             Controller,
+             &gEfiUsbIoProtocolGuid,
+             pThis->DriverBindingHandle,
+             Controller
+             );
+    goto ERR;
+  }
+
+  //
+  // Set Device Path
+  //
+
+  Status = gBS->OpenProtocol (
+                    Controller,
+                    &gEfiDevicePathProtocolGuid,
+                    (VOID **) &ParentDevicePath,
+                    pThis->DriverBindingHandle,
+                    Controller,
+                    EFI_OPEN_PROTOCOL_BY_DRIVER
+                    );
+  if (EFI_ERROR(Status)) {
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+
+  ZeroMem (&MacDeviceNode, sizeof (MAC_ADDR_DEVICE_PATH));
+  MacDeviceNode.Header.Type = MESSAGING_DEVICE_PATH;
+  MacDeviceNode.Header.SubType = MSG_MAC_ADDR_DP;
+
+  SetDevicePathNodeLength (&MacDeviceNode.Header, sizeof (MAC_ADDR_DEVICE_PATH));
+
+  CopyMem (&MacDeviceNode.MacAddress,
+           &pNicDevice->SimpleNetworkData.CurrentAddress,
+           PXE_HWADDR_LEN_ETHER);
+
+  MacDeviceNode.IfType = pNicDevice->SimpleNetworkData.IfType;
+
+  pNicDevice->MyDevPath = AppendDevicePathNode (
+                                          ParentDevicePath,
+                                          (EFI_DEVICE_PATH_PROTOCOL *) &MacDeviceNode
+                                          );
+
+  pNicDevice->Controller = NULL;
+
+  //
+  //  Install both the simple network and device path protocols.
+  //
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                          &pNicDevice->Controller,
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+
+  if (EFI_ERROR(Status)){
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiDevicePathProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller);
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+
+  //
+  // Open For Child Device
+  //
+  Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &pNicDevice->pUsbIo,
+                  pThis->DriverBindingHandle,
+                  pNicDevice->Controller,
+                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                  );
+
+  if (EFI_ERROR(Status)){
+    gBS->UninstallMultipleProtocolInterfaces (
+                          &pNicDevice->Controller,
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiDevicePathProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller);
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              Controller
+              );
+    goto ERR;
+  }
+
+  return Status;
+ERR:
+  if ( NULL != pNicDevice->pBulkInbuf)
+    gBS->FreePool (pNicDevice->pBulkInbuf);
+  if ( NULL != pNicDevice->pTxTest)
+    gBS->FreePool (pNicDevice->pTxTest);
+  if ( NULL != pNicDevice->MyDevPath)
+    gBS->FreePool (pNicDevice->MyDevPath);
+  if (NULL != pNicDevice)
+    gBS->FreePool ( pNicDevice );
+  return Status;
+}
+
+/**
+  Stop this driver on Controller by removing NetworkInterfaceIdentifier protocol and
+  closing the DevicePath and PciIo protocols on Controller.
+
+  @param [in] pThis                Protocol instance pointer.
+  @param [in] Controller           Handle of device to stop driver on.
+  @param [in] NumberOfChildren     How many children need to be stopped.
+  @param [in] pChildHandleBuffer   Not used.
+
+  @retval EFI_SUCCESS          This driver is removed Controller.
+  @retval EFI_DEVICE_ERROR     The device could not be stopped due to a device error.
+  @retval other                This driver was not removed from this device.
+
+**/
+EFI_STATUS
+EFIAPI
+DriverStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL * pThis,
+  IN  EFI_HANDLE Controller,
+  IN  UINTN NumberOfChildren,
+  IN  EFI_HANDLE * ChildHandleBuffer
+  )
+{
+  BOOLEAN AllChildrenStopped;
+  UINTN Index;
+  EFI_SIMPLE_NETWORK_PROTOCOL *SimpleNetwork;
+  EFI_STATUS Status = EFI_SUCCESS;
+  NIC_DEVICE *pNicDevice;
+
+  //
+  // Complete all outstanding transactions to Controller.
+  // Don't allow any new transaction to Controller to be started.
+  //
+  if (NumberOfChildren == 0) {
+    Status = gBS->OpenProtocol (
+                      Controller,
+                      &gEfiSimpleNetworkProtocolGuid,
+                      (VOID **) &SimpleNetwork,
+                      pThis->DriverBindingHandle,
+                      Controller,
+                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                      );
+
+    if (EFI_ERROR(Status)) {
+      //
+      // This is a 2nd type handle(multi-lun root), it needs to close devicepath
+      // and usbio protocol.
+      //
+      gBS->CloseProtocol (
+                Controller,
+                &gEfiDevicePathProtocolGuid,
+                pThis->DriverBindingHandle,
+                Controller
+                );
+      gBS->CloseProtocol (
+                Controller,
+                &gEfiUsbIoProtocolGuid,
+                pThis->DriverBindingHandle,
+                Controller
+                );
+      return EFI_SUCCESS;
+    }
+
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
+
+    Status = gBS->UninstallMultipleProtocolInterfaces (
+                          Controller,
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+    //
+    // Close the bus driver
+    //
+    Status = gBS->CloseProtocol (
+                       Controller,
+                       &gEfiDevicePathProtocolGuid,
+                       pThis->DriverBindingHandle,
+                       Controller
+                       );
+
+    if (EFI_ERROR(Status)){ }
+
+    Status = gBS->CloseProtocol (
+                       Controller,
+                       &gEfiUsbIoProtocolGuid,
+                       pThis->DriverBindingHandle,
+                       Controller
+                       );
+
+    if (EFI_ERROR(Status)){ }
+
+    return EFI_SUCCESS;
+  }
+
+  AllChildrenStopped = TRUE;
+
+  for (Index = 0; Index < NumberOfChildren; Index++) {
+    Status = gBS->OpenProtocol (
+                      ChildHandleBuffer[Index],
+                      &gEfiSimpleNetworkProtocolGuid,
+                      (VOID **) &SimpleNetwork,
+                      pThis->DriverBindingHandle,
+                      Controller,
+                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                      );
+
+    if (EFI_ERROR (Status)) {
+      AllChildrenStopped = FALSE;
+      continue;
+    }
+
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
+
+    gBS->CloseProtocol (
+              Controller,
+              &gEfiUsbIoProtocolGuid,
+              pThis->DriverBindingHandle,
+              ChildHandleBuffer[Index]
+              );
+
+    Status = gBS->UninstallMultipleProtocolInterfaces (
+                          ChildHandleBuffer[Index],
+                          &gEfiCallerIdGuid,
+                          pNicDevice,
+                          &gEfiSimpleNetworkProtocolGuid,
+                          &pNicDevice->SimpleNetwork,
+                          &gEfiDevicePathProtocolGuid,
+                          pNicDevice->MyDevPath,
+                          NULL
+                          );
+
+    if (EFI_ERROR (Status)) {
+      Status = gBS->OpenProtocol (
+                  Controller,
+                  &gEfiUsbIoProtocolGuid,
+                  (VOID **) &pNicDevice->pUsbIo,
+                  pThis->DriverBindingHandle,
+                  ChildHandleBuffer[Index],
+                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                  );
+    } else {
+      if ( NULL != pNicDevice->pBulkInbuf)
+        gBS->FreePool (pNicDevice->pBulkInbuf);
+      if ( NULL != pNicDevice->pTxTest)
+        gBS->FreePool (pNicDevice->pTxTest);
+      if ( NULL != pNicDevice->MyDevPath)
+        gBS->FreePool (pNicDevice->MyDevPath);
+      if ( NULL != pNicDevice)
+        gBS->FreePool (pNicDevice);
+    }
+  }
+
+  if (!AllChildrenStopped) {
+    return EFI_DEVICE_ERROR;
+  }
+
+  return EFI_SUCCESS;
+}
+
+
+/**
+  Driver binding protocol declaration
+**/
+EFI_DRIVER_BINDING_PROTOCOL  gDriverBinding = {
+  DriverSupported,
+  DriverStart,
+  DriverStop,
+  0xa,
+  NULL,
+  NULL
+};
+
+
+/**
+  Ax88772 driver unload routine.
+
+  @param [in] ImageHandle       Handle for the image.
+
+  @retval EFI_SUCCESS           Image may be unloaded
+
+**/
+EFI_STATUS
+EFIAPI
+DriverUnload (
+  IN EFI_HANDLE ImageHandle
+  )
+{
+  UINTN BufferSize;
+  UINTN Index;
+  UINTN Max;
+  EFI_HANDLE * pHandle;
+  EFI_STATUS Status;
+
+
+  //
+  //  Determine which devices are using this driver
+  //
+  BufferSize = 0;
+  pHandle = NULL;
+  Status = gBS->LocateHandle (
+                  ByProtocol,
+                  &gEfiCallerIdGuid,
+                  NULL,
+                  &BufferSize,
+                  NULL );
+  if ( EFI_BUFFER_TOO_SMALL == Status ) {
+    for ( ; ; ) {
+      //
+      //  One or more block IO devices are present
+      //
+      Status = gBS->AllocatePool (
+                      EfiRuntimeServicesData,
+                      BufferSize,
+                      (VOID **) &pHandle
+                      );
+      if ( EFI_ERROR ( Status )) {
+
+        break;
+      }
+
+      //
+      //  Locate the block IO devices
+      //
+      Status = gBS->LocateHandle (
+                      ByProtocol,
+                      &gEfiCallerIdGuid,
+                      NULL,
+                      &BufferSize,
+                      pHandle );
+      if ( EFI_ERROR ( Status )) {
+        //
+        //  Error getting handles
+        //
+        break;
+      }
+
+      //
+      //  Remove any use of the driver
+      //
+      Max = BufferSize / sizeof ( pHandle[ 0 ]);
+      for ( Index = 0; Max > Index; Index++ ) {
+        Status = DriverStop ( &gDriverBinding,
+                              pHandle[ Index ],
+                              0,
+                              NULL );
+        if ( EFI_ERROR ( Status )) {
+          break;
+        }
+      }
+      break;
+    }
+  } else {
+    if ( EFI_NOT_FOUND == Status ) {
+      //
+      //  No devices were found
+      //
+      Status = EFI_SUCCESS;
+    }
+  }
+
+  //
+  //  Free the handle array
+  //
+  if ( NULL != pHandle ) {
+    gBS->FreePool ( pHandle );
+  }
+
+  //
+  //  Remove the protocols installed by the EntryPoint routine.
+  //
+  if ( !EFI_ERROR ( Status )) {
+    gBS->UninstallMultipleProtocolInterfaces (
+            ImageHandle,
+            &gEfiDriverBindingProtocolGuid,
+            &gDriverBinding,
+            &gEfiComponentNameProtocolGuid,
+            &gComponentName,
+            &gEfiComponentName2ProtocolGuid,
+            &gComponentName2,
+            NULL
+            );
+  }
+
+  //
+  //  Return the unload status
+  //
+  return Status;
+}
+
+
+/**
+Ax88772 driver entry point.
+
+@param [in] ImageHandle       Handle for the image.
+@param [in] pSystemTable      Address of the system table.
+
+@retval EFI_SUCCESS           Image successfully loaded.
+
+**/
+EFI_STATUS
+EFIAPI
+EntryPoint (
+  IN EFI_HANDLE ImageHandle,
+  IN EFI_SYSTEM_TABLE * pSystemTable
+  )
+{
+  EFI_LOADED_IMAGE_PROTOCOL * pLoadedImage;
+  EFI_STATUS    Status;
+
+  //
+  //  Enable unload support
+  //
+  Status = gBS->HandleProtocol (
+                  gImageHandle,
+                  &gEfiLoadedImageProtocolGuid,
+                  (VOID **)&pLoadedImage
+                  );
+  if (!EFI_ERROR (Status)) {
+    pLoadedImage->Unload = DriverUnload;
+  }
+
+  //
+  //  Add the driver to the list of drivers
+  //
+  Status = EfiLibInstallDriverBindingComponentName2 (
+             ImageHandle,
+             pSystemTable,
+             &gDriverBinding,
+             ImageHandle,
+             &gComponentName,
+             &gComponentName2
+             );
+  if ( !EFI_ERROR ( Status )) { }
+  return Status;
+}
diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/SimpleNetwork.c b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/SimpleNetwork.c
new file mode 100644
index 000000000000..b4627092a676
--- /dev/null
+++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772c/SimpleNetwork.c
@@ -0,0 +1,1612 @@
+/** @file
+  Provides the Simple Network functions.
+
+  Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ax88772.h"
+#include <Library/MemoryAllocationLib.h>
+/**
+  This function updates the filtering on the receiver.
+
+  This support routine calls ::Ax88772MacAddressSet to update
+  the MAC address.  This routine then rebuilds the multicast
+  hash by calling ::Ax88772MulticastClear and ::Ax88772MulticastSet.
+  Finally this routine enables the receiver by calling
+  ::Ax88772RxControl.
+
+  @param [in] pSimpleNetwork    Simple network mode pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+ReceiveFilterUpdate (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_STATUS Status;
+  UINT32 Index;
+
+  //
+  // Set the MAC address
+  //
+  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+  pMode = pSimpleNetwork->Mode;
+
+    //
+    // Clear the multicast hash table
+    //
+    Ax88772MulticastClear ( pNicDevice );
+
+    //
+    // Load the multicast hash table
+    //
+    if ( 0 != ( pMode->ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
+      for ( Index = 0; Index < pMode->MCastFilterCount; Index++ ) {
+        //
+        // Enable the next multicast address
+        //
+        Ax88772MulticastSet ( pNicDevice,
+                              &pMode->MCastFilter[ Index ].Addr[0]);
+      }
+    }
+
+    Status = Ax88772RxControl ( pNicDevice, pMode->ReceiveFilterSetting );
+
+  //
+  // Return the operation status
+  //
+  return Status;
+}
+
+
+/**
+  This function updates the SNP driver status.
+
+  This function gets the current interrupt and recycled transmit
+  buffer status from the network interface.  The interrupt status
+  and the media status are returned as a bit mask in InterruptStatus.
+  If InterruptStatus is NULL, the interrupt status will not be read.
+  Upon successful return of the media status, the MediaPresent field
+  of EFI_SIMPLE_NETWORK_MODE will be updated to reflect any change
+  of media status.  If TxBuf is not NULL, a recycled transmit buffer
+  address will be retrived.  If a recycled transmit buffer address
+  is returned in TxBuf, then the buffer has been successfully
+  transmitted, and the status for that buffer is cleared.
+
+  This function calls ::Ax88772Rx to update the media status and
+  queue any receive packets.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] pInterruptStatus  A pointer to the bit mask of the current active interrupts.
+                                If this is NULL, the interrupt status will not be read from
+                                the device.  If this is not NULL, the interrupt status will
+                                be read from teh device.  When the interrupt status is read,
+                                it will also be cleared.  Clearing the transmit interrupt
+                                does not empty the recycled transmit buffer array.
+  @param [out] ppTxBuf          Recycled transmit buffer address.  The network interface will
+                                not transmit if its internal recycled transmit buffer array is
+                                full.  Reading the transmit buffer does not clear the transmit
+                                interrupt.  If this is NULL, then the transmit buffer status
+                                will not be read.  If there are not transmit buffers to recycle
+                                and TxBuf is not NULL, *TxBuf will be set to NULL.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+
+EFI_STATUS
+EFIAPI
+SN_GetStatus (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  OUT UINT32 * pInterruptStatus,
+  OUT VOID ** ppTxBuf
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice = NULL;
+  EFI_STATUS Status = EFI_SUCCESS;
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Return the transmit buffer
+    //
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+    if (( NULL != ppTxBuf ) &&
+        ( NULL != pNicDevice->pTxBuffer )) {
+      *ppTxBuf = pNicDevice->pTxBuffer;
+      pNicDevice->pTxBuffer = NULL;
+    }
+
+    pMode = pSimpleNetwork->Mode;
+    if (EfiSimpleNetworkInitialized == pMode->State) {
+      if (NULL == ppTxBuf && NULL == pInterruptStatus) {
+        Status = EFI_INVALID_PARAMETER;
+        goto EXIT;
+      }
+
+#if REPORTLINK
+#else
+      if (!pNicDevice->bLinkUp || !pNicDevice->bComplete) {
+#endif
+        Status = Ax88772NegotiateLinkComplete ( pNicDevice,
+                                                &pNicDevice->PollCount,
+                                                &pNicDevice->bComplete,
+                                                &pNicDevice->bLinkUp,
+                                                &pNicDevice->b100Mbps,
+                                                &pNicDevice->bFullDuplex );
+        if (EFI_ERROR(Status))
+          goto EXIT;
+#if REPORTLINK
+        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
+          pMode->MediaPresent = TRUE;
+          Status = ReceiveFilterUpdate ( pSimpleNetwork );
+        } else {
+          pMode->MediaPresent = FALSE;
+        }
+#else
+        if (pNicDevice->bLinkUp && pNicDevice->bComplete)  {
+          pMode->MediaPresent = TRUE;
+          pMode->MediaPresentSupported = FALSE;
+          Status = ReceiveFilterUpdate ( pSimpleNetwork );
+        }
+      }
+#endif
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  if ( NULL != pInterruptStatus ) {
+    *pInterruptStatus = 0;
+  }
+EXIT:
+  gBS->RestoreTPL(TplPrevious) ;
+
+  return Status;
+}
+
+/**
+  This function performs read and write operations on the NVRAM device
+  attached to a network interface.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] ReadWrite         TRUE for read operations, FALSE for write operations.
+  @param [in] Offset            Byte offset in the NVRAM device at which to start the
+                                read or write operation.  This must be a multiple of
+                                NvRamAccessSize and less than NvRamSize.
+  @param [in] BufferSize        The number of bytes to read or write from the NVRAM device.
+                                This must also be a multiple of NvramAccessSize.
+  @param [in, out] pBuffer      A pointer to the data buffer.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_NvData (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN ReadWrite,
+  IN UINTN Offset,
+  IN UINTN BufferSize,
+  IN OUT VOID * pBuffer
+  )
+{
+  EFI_STATUS Status = EFI_INVALID_PARAMETER;
+  EFI_TPL TplPrevious;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  if (( NULL == pSimpleNetwork ) || ( NULL == pSimpleNetwork->Mode )) {
+        Status = EFI_INVALID_PARAMETER;
+        goto  EXIT;
+  }
+
+  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+  pMode = pSimpleNetwork->Mode;
+
+#if PASS_SCT
+  if (EfiSimpleNetworkInitialized != pMode->State) {
+    Status = EFI_NOT_STARTED;
+    goto  EXIT;
+  }
+#endif
+
+  if ( 0 != Offset ) {
+    if ((0 != (Offset % pMode->NvRamAccessSize) ) ||
+        (Offset >= pMode->NvRamSize)) {
+      Status = EFI_INVALID_PARAMETER;
+      goto  EXIT;
+    }
+  }
+  //
+  // Offset must be a multiple of NvRamAccessSize and less than NvRamSize.
+  //
+  if (0 != (BufferSize % pMode->NvRamAccessSize)) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  if (BufferSize + Offset > pMode->NvRamSize) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  if (NULL == pBuffer) {
+    Status = EFI_INVALID_PARAMETER;
+    goto  EXIT;
+  }
+
+  //
+  // ReadWrite: TRUE FOR READ FALSE FOR WRITE
+  //
+  if (ReadWrite){
+    UINTN i;
+
+    for (i = 0; i < BufferSize / 2; i++) {
+      Status = Ax88772SromRead ( pNicDevice,
+                                 (UINT32)(Offset/2 + i),
+                                 (((UINT16*)pBuffer) + i));
+    }
+  } else {
+    UINTN i;
+
+    Status = Ax88772EnableSromWrite(pNicDevice);
+    if (EFI_ERROR(Status))
+      goto EXIT;
+
+    for (i = 0; i < BufferSize / 2; i++){
+      Status = Ax88772SromWrite ( pNicDevice,
+                                  (UINT32)(Offset/2 + i),
+                                  (((UINT16*)pBuffer) + i));
+      }
+
+      Status = Ax88772DisableSromWrite(pNicDevice);
+
+      if (BufferSize == 272)
+        Status = Ax88772ReloadSrom(pNicDevice);
+  }
+
+  //
+  // Return the operation status
+  //
+EXIT:
+  gBS->RestoreTPL (TplPrevious);
+  return Status;
+}
+
+
+
+/**
+  Resets the network adapter and allocates the transmit and receive buffers
+  required by the network interface; optionally, also requests allocation of
+  additional transmit and receive buffers.  This routine must be called before
+  any other routine in the Simple Network protocol is called.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] ExtraRxBufferSize Size in bytes to add to the receive buffer allocation
+  @param [in] ExtraTxBufferSize Size in bytes to add to the transmit buffer allocation
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_OUT_OF_RESOURCES  There was not enough memory for the transmit and receive buffers
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Initialize (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINTN ExtraRxBufferSize,
+  IN UINTN ExtraTxBufferSize
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+  UINT32  TmpState;
+   EFI_TPL TplPrevious;
+   NIC_DEVICE * pNicDevice;
+
+   TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Determine if the interface is already started
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkStarted == pMode->State ) {
+      if (( 0 == ExtraRxBufferSize ) && ( 0 == ExtraTxBufferSize )) {
+        //
+        // Start the adapter
+        //
+        TmpState = pMode->State;
+        pMode->State = EfiSimpleNetworkInitialized;
+        Status = SN_Reset ( pSimpleNetwork, FALSE );
+        if ( EFI_ERROR ( Status )) {
+          //
+          // Update the network state
+          //
+          pMode->State = TmpState ; // EfiSimpleNetworkInitialized;
+        } else {
+          pMode->MediaPresentSupported = TRUE;
+          pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+          pMode->MediaPresent = Ax88772GetLinkStatus (pNicDevice);
+        }
+      } else {
+        Status = EFI_UNSUPPORTED;
+      }
+    } else {
+      Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL (TplPrevious);
+  return Status;
+}
+
+
+/**
+  This function converts a multicast IP address to a multicast HW MAC address
+  for all packet transactions.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bIPv6             Set to TRUE if the multicast IP address is IPv6 [RFC2460].
+                                Set to FALSE if the multicast IP address is IPv4 [RFC 791].
+  @param [in] pIP               The multicast IP address that is to be converted to a
+                                multicast HW MAC address.
+  @param [in] pMAC              The multicast HW MAC address that is to be generated from IP.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_MCastIPtoMAC (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bIPv6,
+  IN EFI_IP_ADDRESS * pIP,
+  IN EFI_MAC_ADDRESS * pMAC
+  )
+{
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // The interface must be running
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      if (pIP == NULL || pMAC == NULL) {
+        Status = EFI_INVALID_PARAMETER;
+        goto EXIT;
+      }
+
+      if (bIPv6) {
+        Status = EFI_UNSUPPORTED;
+        goto EXIT;
+      } else {
+        //
+        // check if the ip given is a mcast IP
+        //
+        if ((pIP->v4.Addr[0] & 0xF0) != 0xE0) {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        } else {
+          pMAC->Addr[0] = 0x01;
+          pMAC->Addr[1] = 0x00;
+          pMAC->Addr[2] = 0x5e;
+          pMAC->Addr[3] = (UINT8) (pIP->v4.Addr[1] & 0x7f);
+          pMAC->Addr[4] = (UINT8) pIP->v4.Addr[2];
+          pMAC->Addr[5] = (UINT8) pIP->v4.Addr[3];
+          Status = EFI_SUCCESS;
+        }
+      }
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+EXIT:
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+SN_Receive (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  OUT UINTN                      * pHeaderSize,
+  OUT UINTN                      * pBufferSize,
+  OUT VOID                       * pBuffer,
+  OUT EFI_MAC_ADDRESS            * pSrcAddr,
+  OUT EFI_MAC_ADDRESS            * pDestAddr,
+  OUT UINT16                     * pProtocol
+  )
+{
+  ETHERNET_HEADER * pHeader;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice = NULL;
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+  UINT16 Type;
+  UINT16 CurrentPktLen;
+
+
+  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // The interface must be running
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+
+      if ((pBufferSize == NULL) || (pBuffer == NULL)) {
+        Status = EFI_INVALID_PARAMETER;
+        gBS->RestoreTPL (TplPrevious);
+        return Status;
+      }
+
+      //
+      // Update the link status
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
+        if ((NULL != pHeaderSize) && (7720 == *pHeaderSize)) {
+          pNicDevice->Grub_f = TRUE;
+        }
+
+        if ((pNicDevice->Grub_f) && (7720 != *pHeaderSize)) {
+          gBS->RestoreTPL (TplPrevious);
+          return EFI_NOT_READY;
+        }
+
+        //
+        //  Attempt to receive a packet
+        //
+        if (0 == pNicDevice->PktCnt) {
+          Status = Ax88772BulkIn(pNicDevice);
+          if (EFI_ERROR(Status)) {
+            goto  no_pkt;
+          }
+        }
+
+        CurrentPktLen = *((UINT16*) (pNicDevice->pCurPktHdrOff));
+        CurrentPktLen &=  0x7ff;
+
+        if (( 60 <= CurrentPktLen ) &&
+            ( CurrentPktLen - 14 <= MAX_ETHERNET_PKT_SIZE)) {
+            if (*pBufferSize < (UINTN)CurrentPktLen) {
+              gBS->RestoreTPL (TplPrevious);
+              return EFI_BUFFER_TOO_SMALL;
+            }
+
+            *pBufferSize = CurrentPktLen;
+            CopyMem ( pBuffer, pNicDevice->pCurPktOff, CurrentPktLen );
+            pHeader = (ETHERNET_HEADER *) pNicDevice->pCurPktOff;
+
+            if ( NULL != pHeaderSize  && (7720 != *pHeaderSize)) {
+              *pHeaderSize = sizeof ( *pHeader );
+            }
+            if ( NULL != pDestAddr ) {
+              CopyMem ( pDestAddr, &pHeader->dest_addr, PXE_HWADDR_LEN_ETHER );
+            }
+            if ( NULL != pSrcAddr ) {
+              CopyMem ( pSrcAddr, &pHeader->src_addr, PXE_HWADDR_LEN_ETHER );
+            }
+            if ( NULL != pProtocol ) {
+              Type = pHeader->type;
+              Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
+              *pProtocol = Type;
+            }
+            pNicDevice->PktCnt--;
+            pNicDevice->pCurPktHdrOff += (CurrentPktLen + 4 + 1) & 0xfffe;
+            pNicDevice->pCurPktOff = pNicDevice->pCurPktHdrOff + 4;
+            Status = EFI_SUCCESS;
+        } else {
+          pNicDevice->PktCnt = 0;
+          Status = EFI_DEVICE_ERROR;
+        }
+      } else {
+        //
+        //  Link no up
+        //
+        Status = EFI_NOT_READY;
+      }
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR;
+      } else {
+        Status = EFI_NOT_STARTED;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Return the operation status
+  //
+no_pkt:
+  gBS->RestoreTPL (TplPrevious);
+  return Status;
+}
+
+/**
+  This function is used to enable and disable the hardware and software receive
+  filters for the underlying network device.
+
+  The receive filter change is broken down into three steps:
+
+    1.  The filter mask bits that are set (ON) in the Enable parameter
+        are added to the current receive filter settings.
+
+    2.  The filter mask bits that are set (ON) in the Disable parameter
+        are subtracted from the updated receive filter settins.
+
+    3.  If the resulting filter settigns is not supported by the hardware
+        a more liberal setting is selected.
+
+  If the same bits are set in the Enable and Disable parameters, then the bits
+  in the Disable parameter takes precedence.
+
+  If the ResetMCastFilter parameter is TRUE, then the multicast address list
+  filter is disabled (irregardless of what other multicast bits are set in
+  the enable and Disable parameters).  The SNP->Mode->MCastFilterCount field
+  is set to zero.  The SNP->Mode->MCastFilter contents are undefined.
+
+  After enableing or disabling receive filter settings, software should
+  verify the new settings by checking the SNP->Mode->ReceeiveFilterSettings,
+  SNP->Mode->MCastFilterCount and SNP->Mode->MCastFilter fields.
+
+  Note: Some network drivers and/or devices will automatically promote
+  receive filter settings if the requested setting can not be honored.
+  For example, if a request for four multicast addresses is made and
+  the underlying hardware only supports two multicast addresses the
+  driver might set the promiscuous or promiscuous multicast receive filters
+  instead.  The receiving software is responsible for discarding any extra
+  packets that get through the hardware receive filters.
+
+  If ResetMCastFilter is TRUE, then the multicast receive filter list
+  on the network interface will be reset to the default multicast receive
+  filter list.  If ResetMCastFilter is FALSE, and this network interface
+  allows the multicast receive filter list to be modified, then the
+  MCastFilterCnt and MCastFilter are used to update the current multicast
+  receive filter list.  The modified receive filter list settings can be
+  found in the MCastFilter field of EFI_SIMPLE_NETWORK_MODE.
+
+  This routine calls ::ReceiveFilterUpdate to update the receive
+  state in the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] Enable            A bit mask of receive filters to enable on the network interface.
+  @param [in] Disable           A bit mask of receive filters to disable on the network interface.
+                                For backward compatibility with EFI 1.1 platforms, the
+                                EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit must be set
+                                when the ResetMCastFilter parameter is TRUE.
+  @param [in] bResetMCastFilter Set to TRUE to reset the contents of the multicast receive
+                                filters on the network interface to their default values.
+  @param [in] MCastFilterCnt    Number of multicast HW MAC address in the new MCastFilter list.
+                                This value must be less than or equal to the MaxMCastFilterCnt
+                                field of EFI_SIMPLE_NETWORK_MODE.  This field is optional if
+                                ResetMCastFilter is TRUE.
+  @param [in] pMCastFilter      A pointer to a list of new multicast receive filter HW MAC
+                                addresses.  This list will replace any existing multicast
+                                HW MAC address list.  This field is optional if ResetMCastFilter
+                                is TRUE.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_ReceiveFilters (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINT32 Enable,
+  IN UINT32 Disable,
+/*
+#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
+#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
+#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
+#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
+#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
+*/
+  IN BOOLEAN bResetMCastFilter,
+  IN UINTN MCastFilterCnt,
+  IN EFI_MAC_ADDRESS * pMCastFilter
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+
+  EFI_STATUS Status = EFI_SUCCESS;
+  EFI_TPL TplPrevious;
+
+
+  NIC_DEVICE * pNicDevice;
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+   pMode = pSimpleNetwork->Mode;
+
+
+  if (pSimpleNetwork == NULL) {
+    gBS->RestoreTPL(TplPrevious);
+    return EFI_INVALID_PARAMETER;
+  }
+
+
+  switch (pMode->State) {
+  case EfiSimpleNetworkInitialized:
+    break;
+
+  case EfiSimpleNetworkStopped:
+    Status = EFI_NOT_STARTED;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+
+  default:
+    Status = EFI_DEVICE_ERROR;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  //
+  // check if we are asked to enable or disable something that the UNDI
+  // does not even support!
+  //
+  if (((Enable &~pMode->ReceiveFilterMask) != 0) ||
+      ((Disable &~pMode->ReceiveFilterMask) != 0)) {
+    Status = EFI_INVALID_PARAMETER;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  if (bResetMCastFilter) {
+    if ( (0 == (pMode->ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST)) &&
+          Enable == 0 &&
+          Disable == 2) {
+      gBS->RestoreTPL(TplPrevious);
+      return EFI_SUCCESS;
+    }
+    pMode->MCastFilterCount = 0;
+    SetMem ( &pMode->MCastFilter[0],
+             sizeof(EFI_MAC_ADDRESS) * MAX_MCAST_FILTER_CNT,
+             0);
+  } else {
+    if (MCastFilterCnt != 0) {
+      UINTN i;
+      EFI_MAC_ADDRESS * pMulticastAddress;
+      pMulticastAddress =  pMCastFilter;
+
+      if ((MCastFilterCnt > pMode->MaxMCastFilterCount) ||
+          (pMCastFilter == NULL)) {
+        Status = EFI_INVALID_PARAMETER;
+        gBS->RestoreTPL(TplPrevious);
+        return Status;
+      }
+
+      for ( i = 0 ; i < MCastFilterCnt ; i++ ) {
+          UINT8  tmp;
+          tmp = pMulticastAddress->Addr[0];
+          if ( (tmp & 0x01) != 0x01 ) {
+            gBS->RestoreTPL(TplPrevious);
+            return EFI_INVALID_PARAMETER;
+          }
+          pMulticastAddress++;
+      }
+
+      pMode->MCastFilterCount = (UINT32)MCastFilterCnt;
+      CopyMem (&pMode->MCastFilter[0],
+               pMCastFilter,
+               MCastFilterCnt * sizeof ( EFI_MAC_ADDRESS ));
+    }
+  }
+
+  if (Enable == 0 && Disable == 0 && !bResetMCastFilter && MCastFilterCnt == 0) {
+    Status = EFI_SUCCESS;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0 && MCastFilterCnt == 0) {
+    Status = EFI_INVALID_PARAMETER;
+    gBS->RestoreTPL(TplPrevious);
+    return Status;
+  }
+
+  pMode->ReceiveFilterSetting |= Enable;
+  pMode->ReceiveFilterSetting &= ~Disable;
+
+  Status = ReceiveFilterUpdate (pSimpleNetwork);
+
+  if (EFI_DEVICE_ERROR == Status || EFI_INVALID_PARAMETER == Status)
+    Status = EFI_SUCCESS;
+
+
+  gBS->RestoreTPL(TplPrevious);
+
+  return Status;
+}
+
+/**
+  Reset the network adapter.
+
+  Resets a network adapter and reinitializes it with the parameters that
+  were provided in the previous call to Initialize ().  The transmit and
+  receive queues are cleared.  Receive filters, the station address, the
+  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
+  this call.
+
+  This routine calls ::Ax88772Reset to perform the adapter specific
+  reset operation.  This routine also starts the link negotiation
+  by calling ::Ax88772NegotiateLinkStart.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bExtendedVerification  Indicates that the driver may perform a more
+                                exhaustive verification operation of the device
+                                during reset.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Reset (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bExtendedVerification
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_STATUS Status;
+
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  //  Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      //  Update the device state
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+      //
+      //  Reset the device
+      //
+      if (!pNicDevice->bFirstRst) {
+        Status = EFI_SUCCESS;
+      } else {
+        Status = Ax88772Reset ( pNicDevice );
+        if ( !EFI_ERROR ( Status )) {
+          Status = ReceiveFilterUpdate ( pSimpleNetwork );
+          if ( !EFI_ERROR ( Status ) && !pNicDevice->bLinkUp && pNicDevice->bFirstRst) {
+            Status = Ax88772NegotiateLinkStart ( pNicDevice );
+            pNicDevice->bFirstRst = FALSE;
+          }
+        }
+      }
+    } else {
+      Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+
+  return Status;
+}
+
+/**
+  Initialize the simple network protocol.
+
+  This routine calls ::Ax88772MacAddressGet to obtain the
+  MAC address.
+
+  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
+
+  @retval EFI_SUCCESS     Setup was successful
+
+**/
+EFI_STATUS
+SN_Setup (
+  IN NIC_DEVICE * pNicDevice
+  )
+{
+
+
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork;
+  EFI_STATUS Status;
+
+  //
+  // Initialize the simple network protocol
+  //
+  pSimpleNetwork = &pNicDevice->SimpleNetwork;
+  pSimpleNetwork->Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
+  pSimpleNetwork->Start = (EFI_SIMPLE_NETWORK_START)SN_Start;
+  pSimpleNetwork->Stop = (EFI_SIMPLE_NETWORK_STOP)SN_Stop;
+  pSimpleNetwork->Initialize = (EFI_SIMPLE_NETWORK_INITIALIZE)SN_Initialize;
+  pSimpleNetwork->Reset = (EFI_SIMPLE_NETWORK_RESET)SN_Reset;
+  pSimpleNetwork->Shutdown = (EFI_SIMPLE_NETWORK_SHUTDOWN)SN_Shutdown;
+  pSimpleNetwork->ReceiveFilters = (EFI_SIMPLE_NETWORK_RECEIVE_FILTERS)SN_ReceiveFilters;
+  pSimpleNetwork->StationAddress = (EFI_SIMPLE_NETWORK_STATION_ADDRESS)SN_StationAddress;
+  pSimpleNetwork->Statistics = (EFI_SIMPLE_NETWORK_STATISTICS)SN_Statistics;
+  pSimpleNetwork->MCastIpToMac = (EFI_SIMPLE_NETWORK_MCAST_IP_TO_MAC)SN_MCastIPtoMAC;
+  pSimpleNetwork->NvData = (EFI_SIMPLE_NETWORK_NVDATA)SN_NvData;
+  pSimpleNetwork->GetStatus = (EFI_SIMPLE_NETWORK_GET_STATUS)SN_GetStatus;
+  pSimpleNetwork->Transmit = (EFI_SIMPLE_NETWORK_TRANSMIT)SN_Transmit;
+  pSimpleNetwork->Receive = (EFI_SIMPLE_NETWORK_RECEIVE)SN_Receive;
+  pSimpleNetwork->WaitForPacket = NULL;
+  pMode = &pNicDevice->SimpleNetworkData;
+  pSimpleNetwork->Mode = pMode;
+  pMode->State = EfiSimpleNetworkStopped;
+  pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
+  pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
+  pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
+  pMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
+                           | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
+                           | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
+                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
+                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
+  pMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
+                              | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
+  pMode->MaxMCastFilterCount = ASIX_MCAST_FILTER_CNT;
+  pMode->MCastFilterCount = 0;
+  pMode->NvRamSize = 512;
+  pMode->NvRamAccessSize = 2;
+  SetMem ( &pMode->BroadcastAddress,
+           PXE_HWADDR_LEN_ETHER,
+           0xff );
+
+  SetMem ( &pMode->MCastFilter[0],
+           sizeof(EFI_MAC_ADDRESS) * MAX_MCAST_FILTER_CNT,
+           0);
+
+  pMode->IfType = EfiNetworkInterfaceUndi;
+  pMode->MacAddressChangeable = TRUE;
+  pMode->MultipleTxSupported = FALSE;
+  pMode->MediaPresentSupported = TRUE;
+  pMode->MediaPresent = FALSE;
+
+  //
+  //  Read the MAC address
+  //
+  pNicDevice->PhyId = PHY_ID_INTERNAL;
+  pNicDevice->b100Mbps = TRUE;
+  pNicDevice->bFullDuplex = TRUE;
+  pNicDevice->bComplete = FALSE;
+  pNicDevice->bLinkUp = FALSE;
+  pNicDevice->Grub_f = FALSE;
+  pNicDevice->bFirstRst = TRUE;
+  pNicDevice->PktCnt = 0;
+
+  Status = Ax88772MacAddressGet (
+                pNicDevice,
+                &pMode->PermanentAddress.Addr[0]);
+
+  if ( !EFI_ERROR ( Status )) {
+
+    //
+    //  Use the hardware address as the current address
+    //
+
+    CopyMem ( &pMode->CurrentAddress,
+              &pMode->PermanentAddress,
+              PXE_HWADDR_LEN_ETHER );
+
+    CopyMem ( &pNicDevice->MAC,
+              &pMode->PermanentAddress,
+              PXE_HWADDR_LEN_ETHER );
+
+
+    if (EFI_ERROR(Status)) {
+        return Status;
+    }
+  } else {
+    return Status;
+  }
+
+  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
+                                   AX88772_MAX_BULKIN_SIZE,
+                                   (VOID **) &pNicDevice->pBulkInbuf );
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
+                                   sizeof ( RX_TX_PACKET ),
+                                   (VOID **) &pNicDevice->pTxTest );
+
+  if (EFI_ERROR (Status)) {
+    gBS->FreePool (pNicDevice->pBulkInbuf);
+    return Status;
+  }
+
+  //
+  //  Return the setup status
+  //
+  return Status;
+}
+
+
+/**
+  This routine starts the network interface.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_ALREADY_STARTED   The network interface was already started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Start (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  NIC_DEVICE * pNicDevice;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+
+  EFI_TPL TplPrevious;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  Status = EFI_INVALID_PARAMETER;
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkStopped == pMode->State ) {
+      //
+      // Initialize the mode structure
+      // NVRAM access is not supported
+      //
+      ZeroMem ( pMode, sizeof ( *pMode ));
+
+      pMode->State = EfiSimpleNetworkStarted;
+      pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
+      pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
+      pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
+      pMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
+                               | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
+                               | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
+                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
+                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
+      pMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;
+      pMode->MaxMCastFilterCount = ASIX_MCAST_FILTER_CNT;
+      pMode->MCastFilterCount = 0;
+
+      SetMem ( &pMode->MCastFilter[0],
+               sizeof(EFI_MAC_ADDRESS) * MAX_MCAST_FILTER_CNT,
+               0);
+
+      pMode->NvRamSize = 512;
+      pMode->NvRamAccessSize = 2;
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+      Status = Ax88772MacAddressGet ( pNicDevice, &pMode->PermanentAddress.Addr[0]);
+      CopyMem ( &pMode->CurrentAddress,
+                &pMode->PermanentAddress,
+                sizeof ( pMode->CurrentAddress ));
+      SetMem(&pMode->BroadcastAddress, PXE_HWADDR_LEN_ETHER, 0xff);
+      pMode->IfType = EfiNetworkInterfaceUndi;
+      pMode->MacAddressChangeable = TRUE;
+      pMode->MultipleTxSupported = FALSE;
+
+      pMode->MediaPresentSupported = TRUE;
+      pMode->MediaPresent = FALSE;
+
+    } else {
+      Status = EFI_ALREADY_STARTED;
+    }
+  }
+
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+
+/**
+  Set the MAC address.
+
+  This function modifies or resets the current station address of a
+  network interface.  If Reset is TRUE, then the current station address
+  is set ot the network interface's permanent address.  If Reset if FALSE
+  then the current station address is changed to the address specified by
+  pNew.
+
+  This routine calls ::Ax88772MacAddressSet to update the MAC address
+  in the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Flag used to reset the station address to the
+                                network interface's permanent address.
+  @param [in] pNew              New station address to be used for the network
+                                interface.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_StationAddress (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN EFI_MAC_ADDRESS * pNew
+  )
+{
+  NIC_DEVICE * pNicDevice;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+
+  EFI_TPL TplPrevious;
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) &&
+      ( NULL != pSimpleNetwork->Mode ) &&
+      (( !bReset ) || ( bReset && ( NULL != pNew )))) {
+    //
+    // Verify that the adapter is already started
+    //
+    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      // Determine the adapter MAC address
+      //
+      if ( bReset ) {
+        //
+        // Use the permanent address
+        //
+        CopyMem ( &pMode->CurrentAddress,
+                  &pMode->PermanentAddress,
+                  sizeof ( pMode->CurrentAddress ));
+      } else {
+        //
+        // Use the specified address
+        //
+        CopyMem ( &pMode->CurrentAddress,
+                  pNew,
+                  sizeof ( pMode->CurrentAddress ));
+      }
+
+      //
+      // Update the address on the adapter
+      //
+      Status = Ax88772MacAddressSet ( pNicDevice, &pMode->CurrentAddress.Addr[0]);
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR; ;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+
+  return Status;
+}
+
+
+/**
+  This function resets or collects the statistics on a network interface.
+  If the size of the statistics table specified by StatisticsSize is not
+  big enough for all of the statistics that are collected by the network
+  interface, then a partial buffer of statistics is returned in
+  StatisticsTable.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
+  @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
+                                the size, in bytes, of the resulting table of statistics.
+  @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
+                                conains the statistics.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+  typedef struct {
+  UINT64 RxTotalFrames;
+  UINT64 RxGoodFrames;
+  UINT64 RxUndersizeFrames;
+  UINT64 RxOversizeFrames;
+  UINT64 RxDroppedFrames;
+  UINT64 RxUnicastFrames;
+  UINT64 RxBroadcastFrames;
+  UINT64 RxMulticastFrames;
+  UINT64 RxCrcErrorFrames;
+  UINT64 RxTotalBytes;
+  UINT64 TxTotalFrames;
+  UINT64 TxGoodFrames;
+  UINT64 TxUndersizeFrames;
+  UINT64 TxOversizeFrames;
+  UINT64 TxDroppedFrames;
+  UINT64 TxUnicastFrames;
+  UINT64 TxBroadcastFrames;
+  UINT64 TxMulticastFrames;
+  UINT64 TxCrcErrorFrames;
+  UINT64 TxTotalBytes;
+  UINT64 Collisions;
+  UINT64 UnsupportedProtocol;
+  } EFI_NETWORK_STATISTICS;
+**/
+EFI_STATUS
+EFIAPI
+SN_Statistics (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN BOOLEAN bReset,
+  IN OUT UINTN * pStatisticsSize,
+  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
+  )
+{
+  EFI_STATUS Status;
+  EFI_TPL TplPrevious;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+
+
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  pMode = pSimpleNetwork->Mode;
+
+  if ( EfiSimpleNetworkInitialized == pMode->State ) {
+    if (NULL != pStatisticsSize && 0 == *pStatisticsSize) {
+      Status = EFI_BUFFER_TOO_SMALL;
+      goto EXIT;
+    }
+    if(bReset) {
+      Status = EFI_SUCCESS;
+    } else {
+      Status = EFI_SUCCESS;
+    }
+  } else {
+    if (EfiSimpleNetworkStarted == pMode->State) {
+      Status = EFI_DEVICE_ERROR; ;
+    } else {
+      Status = EFI_NOT_STARTED ;
+    }
+  }
+  //
+  // This is not currently supported
+  //
+
+EXIT:
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+
+/**
+  This function stops a network interface.  This call is only valid
+  if the network interface is in the started state.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Stop (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  EFI_STATUS Status;
+
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Determine if the interface is started
+    //
+    pMode = pSimpleNetwork->Mode;
+
+    if ( EfiSimpleNetworkStarted == pMode->State ) {
+        pMode->State = EfiSimpleNetworkStopped;
+        Status = EFI_SUCCESS;
+    } else {
+        Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious);
+  return Status;
+}
+
+
+/**
+  This function releases the memory buffers assigned in the Initialize() call.
+  Pending transmits and receives are lost, and interrupts are cleared and disabled.
+  After this call, only Initialize() and Stop() calls may be used.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Shutdown (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
+  )
+{
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  UINT32 RxFilter;
+  EFI_STATUS Status;
+
+  EFI_TPL TplPrevious;
+
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  //
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // Determine if the interface is already started
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      // Stop the adapter
+      //
+      RxFilter = pMode->ReceiveFilterSetting;
+      pMode->ReceiveFilterSetting = 0;
+      Status = SN_Reset ( pSimpleNetwork, FALSE );
+      pMode->ReceiveFilterSetting = RxFilter;
+      if ( !EFI_ERROR ( Status )) {
+        //
+        // Update the network state
+        //
+        pMode->State = EfiSimpleNetworkStarted;
+      } else if ( EFI_DEVICE_ERROR == Status ) {
+        pMode->State = EfiSimpleNetworkStopped;
+      }
+
+    } else {
+      Status = EFI_NOT_STARTED;
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Return the operation status
+  //
+  gBS->RestoreTPL(TplPrevious );
+  return Status;
+}
+
+
+/**
+  Send a packet over the network.
+
+  This function places the packet specified by Header and Buffer on
+  the transmit queue.  This function performs a non-blocking transmit
+  operation.  When the transmit is complete, the buffer is returned
+  via the GetStatus() call.
+
+  This routine calls ::Ax88772Rx to empty the network adapter of
+  receive packets.  The routine then passes the transmit packet
+  to the network adapter.
+
+  @param [in] pSimpleNetwork    Protocol instance pointer
+  @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
+                                the Transmit() function.  If HeaderSize is non-zero, then
+                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
+                                and DestAddr and Protocol parameters must not be NULL.
+  @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
+                                data) to be transmitted through the network interface.
+  @param [in] pBuffer           A pointer to the packet (media header followed by data) to
+                                to be transmitted.  This parameter can not be NULL.  If
+                                HeaderSize is zero, then the media header is Buffer must
+                                already be filled in by the caller.  If HeaderSize is nonzero,
+                                then the media header will be filled in by the Transmit()
+                                function.
+  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.  If HeaderSize is nonzero and
+                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
+                                is used for the source HW MAC address.
+  @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
+                                this parameter is ignored.
+  @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
+                                this parameter is ignored.
+
+  @retval EFI_SUCCESS           This operation was successful.
+  @retval EFI_NOT_STARTED       The network interface was not started.
+  @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
+  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
+  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
+                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
+
+**/
+EFI_STATUS
+EFIAPI
+SN_Transmit (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
+  IN UINTN HeaderSize,
+  IN UINTN BufferSize,
+  IN VOID * pBuffer,
+  IN EFI_MAC_ADDRESS * pSrcAddr,
+  IN EFI_MAC_ADDRESS * pDestAddr,
+  IN UINT16 * pProtocol
+  )
+{
+  ETHERNET_HEADER * pHeader;
+  EFI_SIMPLE_NETWORK_MODE * pMode;
+  NIC_DEVICE * pNicDevice;
+  EFI_USB_IO_PROTOCOL * pUsbIo;
+  EFI_STATUS Status;
+  UINTN TransferLength;
+  UINT32 TransferStatus;
+  UINT16 Type;
+  EFI_TPL TplPrevious;
+  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
+
+  // Verify the parameters
+  //
+  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
+    //
+    // The interface must be running
+    //
+    pMode = pSimpleNetwork->Mode;
+    if ( EfiSimpleNetworkInitialized == pMode->State ) {
+      //
+      // Update the link status
+      //
+      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
+
+      //
+      //  Release the synchronization with Ax88772Timer
+      //
+      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
+        //
+        //  Copy the packet into the USB buffer
+        //
+
+        if (0 != HeaderSize && pMode->MediaHeaderSize != HeaderSize)  {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        }
+        if (BufferSize <  pMode->MediaHeaderSize) {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        }
+        if (NULL == pBuffer) {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        }
+        if (0 != HeaderSize && NULL == pDestAddr) {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        }
+        if (0 != HeaderSize && NULL == pProtocol) {
+          Status = EFI_INVALID_PARAMETER;
+          goto EXIT;
+        }
+
+        CopyMem ( &pNicDevice->pTxTest->Data[0], pBuffer, BufferSize );
+        pNicDevice->pTxTest->Length = (UINT16) BufferSize;
+
+        //
+        //  Transmit the packet
+        //
+        pHeader = (ETHERNET_HEADER *) &pNicDevice->pTxTest->Data[0];
+        if ( 0 != HeaderSize ) {
+          if ( NULL != pDestAddr ) {
+            CopyMem ( &pHeader->dest_addr, pDestAddr, PXE_HWADDR_LEN_ETHER );
+          }
+          if ( NULL != pSrcAddr ) {
+            CopyMem ( &pHeader->src_addr, pSrcAddr, PXE_HWADDR_LEN_ETHER );
+          }
+          else {
+            CopyMem ( &pHeader->src_addr, &pMode->CurrentAddress.Addr[0], PXE_HWADDR_LEN_ETHER );
+          }
+          if ( NULL != pProtocol ) {
+            Type = *pProtocol;
+          } else {
+            Type = pNicDevice->pTxTest->Length;
+          }
+          Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
+          pHeader->type = Type;
+        }
+
+
+        if ( pNicDevice->pTxTest->Length < MIN_ETHERNET_PKT_SIZE ) {
+          pNicDevice->pTxTest->Length = MIN_ETHERNET_PKT_SIZE;
+          ZeroMem ( &pNicDevice->pTxTest->Data[ BufferSize],
+                    pNicDevice->pTxTest->Length - BufferSize );
+        }
+
+        pNicDevice->pTxTest->LengthBar = ~(pNicDevice->pTxTest->Length);
+        TransferLength = sizeof ( pNicDevice->pTxTest->Length )
+                       + sizeof ( pNicDevice->pTxTest->LengthBar )
+                       + pNicDevice->pTxTest->Length;
+
+        if (TransferLength % 512 == 0 || TransferLength % 1024 == 0)
+          TransferLength +=4;
+#if RXTHOU
+        if (pNicDevice->rxburst == 1)
+          pNicDevice->rxburst--;
+#endif
+        //
+        //  Work around USB bus driver bug where a timeout set by receive
+        //  succeeds but the timeout expires immediately after, causing the
+        //  transmit operation to timeout.
+        //
+        pUsbIo = pNicDevice->pUsbIo;
+        Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
+                                           BULK_OUT_ENDPOINT,
+                                           &pNicDevice->pTxTest->Length,
+                                           &TransferLength,
+                                           0xfffffffe,
+                                           &TransferStatus );
+        if ( EFI_SUCCESS == Status) {
+          Status = TransferStatus;
+        }
+        if ( EFI_SUCCESS == Status && EFI_SUCCESS == TransferStatus) {
+          pNicDevice->pTxBuffer = pBuffer;
+        } else {
+          if ( EFI_DEVICE_ERROR == Status ) {
+                SN_Reset ( pSimpleNetwork, FALSE );
+          }
+          Status = EFI_NOT_READY;
+        }
+      } else {
+        //
+        // No packets available.
+        //
+
+        Status = EFI_NOT_READY;
+      }
+    } else {
+      if (EfiSimpleNetworkStarted == pMode->State) {
+        Status = EFI_DEVICE_ERROR; ;
+      } else {
+        Status = EFI_NOT_STARTED ;
+      }
+    }
+  } else {
+    Status = EFI_INVALID_PARAMETER;
+  }
+
+EXIT:
+  gBS->RestoreTPL (TplPrevious);
+
+  return Status;
+}
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
  2020-05-07  3:37 ` [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver Samer El-Haj-Mahmoud
@ 2020-05-07  5:22   ` Ni, Ray
  2020-05-07 16:20     ` Samer El-Haj-Mahmoud
  0 siblings, 1 reply; 6+ messages in thread
From: Ni, Ray @ 2020-05-07  5:22 UTC (permalink / raw)
  To: Samer El-Haj-Mahmoud, devel@edk2.groups.io
  Cc: Leif Lindholm, Ard Biesheuvel, Kinney, Michael D

Samer,
Can you please create a vendor directory Asix and a standalone package inside Asix to hold the Ax88179 driver?
OptionRomPkg is legacy package that shouldn't be used to hold all UEFI drivers.

Thanks,
Ray

> -----Original Message-----
> From: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
> Sent: Thursday, May 7, 2020 11:37 AM
> To: devel@edk2.groups.io
> Cc: Ni, Ray <ray.ni@intel.com>; Leif Lindholm <leif@nuviainc.com>; Ard Biesheuvel <ard.biesheuvel@arm.com>
> Subject: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
> 
> This is the initial revision of ASIX USB networking UEFI driver
> version 2.9.0 for Ax88179 and Ax88178a
> https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=131;71;112
> 
> Source code contributed by ASIX.
> 
> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Leif Lindholm <leif@nuviainc.com>
> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
> 
> Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>
> ---
>  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf     |   66 +
>  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h       | 1127 ++++++++++++++
>  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c       | 1026 +++++++++++++
>  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c |  290 ++++
>  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c |  620 ++++++++
>  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c | 1585 ++++++++++++++++++++
>  6 files changed, 4714 insertions(+)
> 
> diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> new file mode 100644
> index 000000000000..a1883e9da1fd
> --- /dev/null
> +++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> @@ -0,0 +1,66 @@
> +## @file
> +# Component description file for ASIX AX88772 USB/Ethernet driver.
> +#
> +# This module provides support for the ASIX AX88772 USB/Ethernet adapter.
> +# Copyright (c) 2011, Intel Corporation
> +#
> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +##
> +
> +[Defines]
> +  INF_VERSION                    = 0x00010018
> +  BASE_NAME                      = Ax88179
> +  FILE_GUID                      = 27E5D3B6-7839-47C2-8618-5D2190729BC7
> +  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
> +  VERSION_STRING                 = 1.0
> +
> +  ENTRY_POINT                    = EntryPoint
> +
> +#
> +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> +#
> +
> +[Sources.common]
> +  Ax88179.h
> +  Ax88179.c
> +  ComponentName.c
> +  DriverBinding.c
> +  SimpleNetwork.c
> +
> +
> +[Packages]
> +  MdePkg/MdePkg.dec
> +  MdeModulePkg/MdeModulePkg.dec
> +
> +[LibraryClasses]
> +  UefiLib
> +  UefiBootServicesTableLib
> +  BaseMemoryLib
> +  DebugLib
> +  UefiRuntimeLib
> +  UefiDriverEntryPoint
> +
> +[Protocols]
> +  gEfiDevicePathProtocolGuid           ## BY_START
> +  gEfiSimpleNetworkProtocolGuid        ## BY_START
> +  gEfiUsbIoProtocolGuid                ## TO_START
> +
> +#[Guids]
> +  #gEfiEventExitBootServicesGuid        ## PRODUCES ## Event
> +  #gEfiEventVirtualAddressChangeGuid    ## PRODUCES ## Event
> +  #gEfiNicIp4ConfigVariableGuid
> +
> +[Depex]
> +  gEfiBdsArchProtocolGuid AND
> +  gEfiCpuArchProtocolGuid AND
> +  gEfiMetronomeArchProtocolGuid AND
> +  gEfiMonotonicCounterArchProtocolGuid AND
> +  gEfiRealTimeClockArchProtocolGuid AND
> +  gEfiResetArchProtocolGuid AND
> +  gEfiRuntimeArchProtocolGuid AND
> +  gEfiSecurityArchProtocolGuid AND
> +  gEfiTimerArchProtocolGuid AND
> +  gEfiVariableWriteArchProtocolGuid AND
> +  gEfiVariableArchProtocolGuid AND
> +  gEfiWatchdogTimerArchProtocolGuid
> diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> new file mode 100644
> index 000000000000..82c9a3668d86
> --- /dev/null
> +++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> @@ -0,0 +1,1127 @@
> +/** @file
> +  Definitions for ASIX AX88179 Ethernet adapter.
> +
> +  Copyright (c) 2011, Intel Corporation
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#ifndef _AX88179_H_
> +#define _AX88179_H_
> +
> +#include <Uefi.h>
> +
> +#include <Guid/EventGroup.h>
> +
> +#include <IndustryStandard/Pci.h>
> +
> +#include <Library/BaseMemoryLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/DevicePathLib.h>
> +#include <Library/UefiBootServicesTableLib.h>
> +#include <Library/UefiDriverEntryPoint.h>
> +#include <Library/UefiLib.h>
> +#include <Library/UefiRuntimeLib.h>
> +
> +#include <Protocol/DevicePath.h>
> +#include <Protocol/LoadedImage.h>
> +#include <Protocol/NetworkInterfaceIdentifier.h>
> +#include <Protocol/SimpleNetwork.h>
> +#include <Protocol/UsbIo.h>
> +
> +
> +#define PASS_SCT      0
> +#define FORCE_100Mbps 0
> +#define REPORTLINK    1
> +
> +
> +//------------------------------------------------------------------------------
> +//  Macros
> +//------------------------------------------------------------------------------
> +
> +//#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler specifics. */
> +#define DBG_ENTER()             DEBUG (( 0xffffffff, "Entering " __FUNCTION__ "\n" )) ///<  Display routine entry
> +#define DBG_EXIT()              DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ "\n" ))  ///<  Display routine exit
> +#define DBG_EXIT_DEC(Status)    DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: %d\n", Status ))      ///<  Display
> routine exit with decimal value
> +#define DBG_EXIT_HEX(Status)    DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: 0x%08x\n", Status ))  ///<  Display
> routine exit with hex value
> +#define DBG_EXIT_STATUS(Status) DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", Status: %r\n", Status ))      ///<  Display
> routine exit with status value
> +#define DBG_EXIT_TF(Status)     DEBUG (( 0xffffffff, "Exiting " __FUNCTION__ ", returning %s\n", (FALSE == Status) ?
> L"FALSE" : L"TRUE" ))  ///<  Display routine with TRUE/FALSE value
> +//#else   //  _MSC_VER
> +//#define DBG_ENTER()               ///<  Display routine entry
> +//#define DBG_EXIT()                ///<  Display routine exit
> +//#define DBG_EXIT_DEC(Status)      ///<  Display routine exit with decimal value
> +//#define DBG_EXIT_HEX(Status)      ///<  Display routine exit with hex value
> +//#define DBG_EXIT_STATUS(Status)   ///<  Display routine exit with status value
> +//#define DBG_EXIT_TF(Status)       ///<  Display routine with TRUE/FALSE value
> +//#endif  //  _MSC_VER
> +
> +#define USB_IS_IN_ENDPOINT(EndPointAddr)      (((EndPointAddr) & BIT7) != 0)  ///<  Return TRUE/FALSE for IN direction
> +#define USB_IS_OUT_ENDPOINT(EndPointAddr)     (((EndPointAddr) & BIT7) == 0)  ///<  Return TRUE/FALSE for OUT
> direction
> +#define USB_IS_BULK_ENDPOINT(Attribute)       (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_BULK)      ///<  Return
> TRUE/FALSE for BULK type
> +#define USB_IS_INTERRUPT_ENDPOINT(Attribute)  (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) ///<
> Return TRUE/FALSE for INTERRUPT type
> +
> +//------------------------------------------------------------------------------
> +//  Constants
> +//------------------------------------------------------------------------------
> +
> +#define DEBUG_RX_BROADCAST  0x40000000  ///<  Display RX broadcast messages
> +#define DEBUG_RX_MULTICAST  0x20000000  ///<  Display RX multicast messages
> +#define DEBUG_RX_UNICAST    0x10000000  ///<  Display RX unicast messages
> +#define DEBUG_MAC_ADDRESS   0x08000000  ///<  Display the MAC address
> +#define DEBUG_LINK          0x04000000  ///<  Display the link status
> +#define DEBUG_TX            0x02000000  ///<  Display the TX messages
> +#define DEBUG_PHY           0x01000000  ///<  Display the PHY register values
> +#define DEBUG_SROM          0x00800000  ///<  Display the SROM contents
> +#define DEBUG_TIMER         0x00400000  ///<  Display the timer routine entry/exit
> +#define DEBUG_TPL           0x00200000  ///<  Display the timer routine entry/exit
> +
> +
> +#define ETHERNET_HEADER_SIZE  sizeof ( ETHERNET_HEADER )  ///<  Size in bytes of the Ethernet header
> +#define MIN_ETHERNET_PKT_SIZE 60    ///<  Minimum packet size including Ethernet header
> +#define MAX_ETHERNET_PKT_SIZE 1500
> +
> +#define USB_NETWORK_CLASS   0x09    ///<  USB Network class code
> +#define USB_BUS_TIMEOUT     1000    ///<  USB timeout in milliseconds
> +
> +//#define TIMER_MSEC          20            ///<  Polling interval for the NIC
> +//#define TPL_AX88179         TPL_CALLBACK    ///<  TPL for routine synchronization
> +
> +
> +#define AX88179_BULKIN_SIZE_INK     2
> +#define AX88179_MAX_BULKIN_SIZE    1024 * AX88179_BULKIN_SIZE_INK
> +#define AX88179_MAX_PKT_SIZE  2048
> +
> +#define HC_DEBUG  0
> +#define ADD_MACPATHNOD  1
> +#define BULKIN_TIMEOUT  3 //5000
> +#define TX_RETRY 0
> +#define AUTONEG_DELAY 1000000
> +/**
> +  Verify new TPL value
> +
> +  This macro which is enabled when debug is enabled verifies that
> +  the new TPL value is >= the current TPL value.
> +**/
> +#ifdef VERIFY_TPL
> +#undef VERIFY_TPL
> +#endif  //  VERIFY_TPL
> +
> +#if !defined(MDEPKG_NDEBUG)
> +
> +#define VERIFY_TPL(tpl)                           \
> +{                                                 \
> +  EFI_TPL PreviousTpl;                            \
> +                                                  \
> +  PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \
> +  gBS->RestoreTPL ( PreviousTpl );                \
> +  if ( PreviousTpl > tpl ) {                      \
> +    DEBUG (( DEBUG_ERROR, "Current TPL: %d, New TPL: %d\r\n", PreviousTpl, tpl ));  \
> +    ASSERT ( PreviousTpl <= tpl );                \
> +  }                                               \
> +}
> +
> +#else   //  MDEPKG_NDEBUG
> +
> +#define VERIFY_TPL(tpl)
> +
> +#endif  //  MDEPKG_NDEBUG
> +
> +//------------------------------------------------------------------------------
> +//  Hardware Definition
> +//------------------------------------------------------------------------------
> +
> +#define DEV_SIGNATURE     SIGNATURE_32 ('A','X','8','8')  ///<  Signature of data structures in memory
> +
> +#define VENDOR_ID         0x0B95  ///<  Vendor ID for Asix
> +#define PRODUCT_ID        0x1790  ///<  Product ID for the AX88179 USB 10/100 Ethernet controller
> +#define PRODUCT_ID_178A   0x178A
> +
> +#define RESET_MSEC        1000    ///<  Reset duration
> +#define PHY_RESET_MSEC     100    ///<  PHY reset duration
> +
> +//
> +//  RX Control register
> +//
> +
> +
> +
> +/*Freddy*/
> +#define RXC_RH1M          0x0100  ///<  Rx header 1
> +#define RXC_RH2M          0x0200  ///<  Rx header 2
> +#define RXC_RH3M          0x0400  ///<  Rx header 3
> +/*Freddy*/
> +
> +//
> +//  Medium Status register
> +//
> +
> +
> +
> +//
> +//  Software PHY Select register
> +//
> +
> +#define SPHY_PSEL         0x01    ///<  Select internal PHY
> +#define SPHY_ASEL         0x02    ///<  1=Auto select, 0=Manual select
> +
> +//
> +//  Software Reset register
> +//
> +
> +#define SRR_RR            0x01    ///<  Clear receive frame length error
> +#define SRR_RT            0x02    ///<  Clear transmit frame length error
> +#define SRR_PRTE          0x04    ///<  External PHY reset pin tri-state enable
> +#define SRR_PRL           0x08    ///<  External PHY reset pin level
> +#define SRR_BZ            0x10    ///<  Force Bulk to return zero length packet
> +#define SRR_IPRL          0x20    ///<  Internal PHY reset control
> +#define SRR_IPPD          0x40    ///<  Internal PHY power down
> +
> +//
> +//  PHY ID values
> +//
> +
> +#define PHY_ID_INTERNAL   0x0003  ///<  Internal PHY
> +
> +//
> +//  USB Commands
> +//
> +
> +#define CMD_PHY_ACCESS_SOFTWARE   0x06  ///<  Software in control of PHY
> +#define CMD_PHY_REG_READ          0x07  ///<  Read PHY register, Value: PHY, Index: Register, Data: Register value
> +#define CMD_PHY_REG_WRITE         0x08  ///<  Write PHY register, Value: PHY, Index: Register, Data: New 16-bit value
> +#define CMD_PHY_ACCESS_HARDWARE   0x0a  ///<  Hardware in control of PHY
> +#define CMD_SROM_READ             0x0b  ///<  Read SROM register: Value: Address, Data: Value
> +#define CMD_RX_CONTROL_WRITE      0x10  ///<  Set the RX control register, Value: New value
> +#define CMD_GAPS_WRITE            0x12  ///<  Write the gaps register, Value: New value
> +#define CMD_MAC_ADDRESS_READ      0x11  ///<  Read the MAC address, Data: 6 byte MAC address
> +#define CMD_MAC_ADDRESS_WRITE     0x14  ///<  Set the MAC address, Data: New 6 byte MAC address
> +
> +#define CMD_MEDIUM_STATUS_READ    0x1a  ///<  Read medium status register, Data: Register value
> +#define CMD_MEDIUM_STATUS_WRITE   0x1b  ///<  Write medium status register, Value: New value
> +#define CMD_RESET                 0x20  ///<  Reset register, Value: New value
> +#define CMD_PHY_SELECT            0x22  ///<  PHY select register, Value: New value
> +
> +/*Freddy*/
> +#define CMD_RXQTC                 0x2a  ///<  RX Queue Cascade Threshold Control Register
> +/*Freddy*/
> +
> +//------------------------------
> +//  USB Endpoints
> +//------------------------------
> +
> +#define CONTROL_ENDPOINT                0       ///<  Control endpoint
> +#define INTERRUPT_ENDPOINT              1       ///<  Interrupt endpoint
> +#define BULK_IN_ENDPOINT                2       ///<  Receive endpoint
> +#define BULK_OUT_ENDPOINT               3       ///<  Transmit endpoint
> +
> +//------------------------------
> +//  PHY Registers
> +//------------------------------
> +
> +
> +
> +
> +
> +#define PHY_ANER                        6       ///<  Autonegotiation expansion register
> +
> +
> +
> +//  BSMR - Register 1
> +
> +
> +
> +//  ANAR and ANLPAR Registers 4, 5
> +
> +#define RXHDR_DROP 0x8000
> +//#define RXHDR_MIIERR 0x4000
> +#define RXHDR_CRCERR 0x2000
> +
> +
> +//------------------------------------------------------------------------------
> +//  Data Types
> +//------------------------------------------------------------------------------
> +
> +/**
> +  Ethernet header layout
> +
> +  IEEE 802.3-2002 Part 3 specification, section 3.1.1.
> +**/
> +#pragma pack(1)
> +typedef struct {
> +  UINT8 dest_addr[PXE_HWADDR_LEN_ETHER];  ///<  Destination LAN address
> +  UINT8 src_addr[PXE_HWADDR_LEN_ETHER];   ///<  Source LAN address
> +  UINT16 type;                            ///<  Protocol or length
> +} ETHERNET_HEADER;
> +#pragma pack()
> +
> +/**
> +  Receive and Transmit packet structure
> +**/
> +
> +
> +
> +
> +#pragma pack(1)
> +typedef struct _TX_PACKET {
> +//  struct _TX_PACKET * pNext;       ///<  Next receive packet
> +  UINT32  TxHdr1;
> +  UINT32  TxHdr2;
> +  UINT8 Data[ AX88179_MAX_PKT_SIZE ]; ///<  Received packet data
> +} TX_PACKET;
> +#pragma pack()
> +
> +#pragma pack(1)
> +typedef struct _RX_PACKET {
> +  struct _RX_PACKET * pNext;
> +  UINT16  Length;
> +  UINT16  EEEE;
> +  UINT8 Data[ AX88179_MAX_PKT_SIZE ];
> +} RX_PACKET;
> +#pragma pack()
> +
> +
> +
> +
> +/**
> +  AX88179 control structure
> +
> +  The driver uses this structure to manage the Asix AX88179 10/100
> +  Ethernet controller.
> +**/
> +typedef struct {
> +  UINTN Signature;          ///<  Structure identification
> +
> +  //
> +  //  USB data
> +  //
> +  EFI_HANDLE Controller;        ///<  Controller handle
> +  EFI_USB_IO_PROTOCOL * pUsbIo; ///<  USB driver interface
> +
> +  //
> +  //  Simple network protocol data
> +  //
> +  EFI_SIMPLE_NETWORK_PROTOCOL SimpleNetwork;  ///<  Driver's network stack interface
> +  EFI_SIMPLE_NETWORK_MODE SimpleNetworkData;  ///<  Data for simple network
> +
> +  //
> +  // Ethernet controller data
> +  //
> +  BOOLEAN bInitialized;     ///<  Controller initialized
> +  UINT16 PhyId;             ///<  PHY ID
> +
> +  //
> +  //  Link state
> +  //
> +  BOOLEAN b100Mbps;         ///<  Current link speed, FALSE = 10 Mbps
> +  BOOLEAN b1000Mbps;        ///<  Current link speed, FALSE = 100/10 bps
> +  BOOLEAN bComplete;        ///<  Current state of auto-negotiation
> +  BOOLEAN bFullDuplex;      ///<  Current duplex
> +  BOOLEAN bLinkUp;          ///<  Current link state
> +  BOOLEAN bLinkIdle;        ///<  TRUE = No received traffic
> +  EFI_EVENT Timer;          ///<  Timer to monitor link state and receive packets
> +  UINTN PollCount;          ///<  Number of times the autonegotiation status was polled
> +  UINTN SkipRXCnt;
> +
> +  UINT8     *pBulkInbuf;
> +  UINT16    PktCnt;
> +  UINT8    * pCurPktHdrOff;
> +  UINT8     *pCurPktOff;
> +
> +  TX_PACKET * pTxTest;
> +
> +  INT8 MulticastHash[8];
> +  EFI_MAC_ADDRESS MAC;
> +
> +  UINT16 CurMediumStatus;
> +  UINT16 CurRxControl;
> +  VOID * pTxBuffer;
> +
> +  EFI_DEVICE_PATH_PROTOCOL                  *MyDevPath;
> +  BOOLEAN   Grub_f;
> +  BOOLEAN   bFirstRst;
> +  BOOLEAN   bSetZeroLen;
> +  UINT8 rxburst;
> +  UINTN usbMaxPktSize;
> +
> +} NIC_DEVICE;
> +
> +#define DEV_FROM_SIMPLE_NETWORK(a)  CR (a, NIC_DEVICE, SimpleNetwork, DEV_SIGNATURE)  ///< Locate NIC_DEVICE
> from Simple Network Protocol
> +
> +//------------------------------------------------------------------------------
> +// Simple Network Protocol
> +//------------------------------------------------------------------------------
> +
> +/**
> +  Reset the network adapter.
> +
> +  Resets a network adapter and reinitializes it with the parameters that
> +  were provided in the previous call to Initialize ().  The transmit and
> +  receive queues are cleared.  Receive filters, the station address, the
> +  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
> +  this call.
> +
> +  This routine calls ::Ax88179Reset to perform the adapter specific
> +  reset operation.  This routine also starts the link negotiation
> +  by calling ::Ax88179NegotiateLinkStart.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bExtendedVerification  Indicates that the driver may perform a more
> +                                exhaustive verification operation of the device
> +                                during reset.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Reset (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bExtendedVerification
> +  );
> +
> +/**
> +  Initialize the simple network protocol.
> +
> +  This routine calls ::Ax88179MacAddressGet to obtain the
> +  MAC address.
> +
> +  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
> +
> +  @retval EFI_SUCCESS     Setup was successful
> +
> +**/
> +EFI_STATUS
> +SN_Setup (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +
> +/**
> +  This routine starts the network interface.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_ALREADY_STARTED   The network interface was already started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Start (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  );
> +
> +/**
> +  Set the MAC address.
> +
> +  This function modifies or resets the current station address of a
> +  network interface.  If Reset is TRUE, then the current station address
> +  is set ot the network interface's permanent address.  If Reset if FALSE
> +  then the current station address is changed to the address specified by
> +  pNew.
> +
> +  This routine calls ::Ax88179MacAddressSet to update the MAC address
> +  in the network adapter.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bReset            Flag used to reset the station address to the
> +                                network interface's permanent address.
> +  @param [in] pNew              New station address to be used for the network
> +                                interface.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_StationAddress (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bReset,
> +  IN EFI_MAC_ADDRESS * pNew
> +  );
> +
> +/**
> +  This function resets or collects the statistics on a network interface.
> +  If the size of the statistics table specified by StatisticsSize is not
> +  big enough for all of the statistics that are collected by the network
> +  interface, then a partial buffer of statistics is returned in
> +  StatisticsTable.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
> +  @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
> +                                the size, in bytes, of the resulting table of statistics.
> +  @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
> +                                conains the statistics.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Statistics (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bReset,
> +  IN OUT UINTN * pStatisticsSize,
> +  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
> +  );
> +
> +/**
> +  This function stops a network interface.  This call is only valid
> +  if the network interface is in the started state.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Stop (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  );
> +
> +/**
> +  This function releases the memory buffers assigned in the Initialize() call.
> +  Pending transmits and receives are lost, and interrupts are cleared and disabled.
> +  After this call, only Initialize() and Stop() calls may be used.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Shutdown (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  );
> +
> +/**
> +  Send a packet over the network.
> +
> +  This function places the packet specified by Header and Buffer on
> +  the transmit queue.  This function performs a non-blocking transmit
> +  operation.  When the transmit is complete, the buffer is returned
> +  via the GetStatus() call.
> +
> +  This routine calls ::Ax88179Rx to empty the network adapter of
> +  receive packets.  The routine then passes the transmit packet
> +  to the network adapter.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
> +                                the Transmit() function.  If HeaderSize is non-zero, then
> +                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
> +                                and DestAddr and Protocol parameters must not be NULL.
> +  @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
> +                                data) to be transmitted through the network interface.
> +  @param [in] pBuffer           A pointer to the packet (media header followed by data) to
> +                                to be transmitted.  This parameter can not be NULL.  If
> +                                HeaderSize is zero, then the media header is Buffer must
> +                                already be filled in by the caller.  If HeaderSize is nonzero,
> +                                then the media header will be filled in by the Transmit()
> +                                function.
> +  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
> +                                this parameter is ignored.  If HeaderSize is nonzero and
> +                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
> +                                is used for the source HW MAC address.
> +  @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
> +                                this parameter is ignored.
> +  @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
> +                                this parameter is ignored.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
> +  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Transmit (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN UINTN HeaderSize,
> +  IN UINTN BufferSize,
> +  IN VOID * pBuffer,
> +  IN EFI_MAC_ADDRESS * pSrcAddr,
> +  IN EFI_MAC_ADDRESS * pDestAddr,
> +  IN UINT16 * pProtocol
> +  );
> +
> +//------------------------------------------------------------------------------
> +// Support Routines
> +//------------------------------------------------------------------------------
> +
> +/**
> +  Get the MAC address
> +
> +  This routine calls ::Ax88179UsbCommand to request the MAC
> +  address from the network adapter.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
> +
> +  @retval EFI_SUCCESS          The MAC address is available.
> +  @retval other                The MAC address is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179MacAddressGet (
> +  IN NIC_DEVICE * pNicDevice,
> +  OUT UINT8 * pMacAddress
> +  );
> +
> +
> +/**
> +  Clear the multicast hash table
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +
> +**/
> +VOID
> +Ax88179MulticastClear (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +
> +/**
> +  Enable a multicast address in the multicast hash table
> +
> +  This routine calls ::Ax88179Crc to compute the hash bit for
> +  this MAC address.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
> +
> +**/
> +VOID
> +Ax88179MulticastSet (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT8 * pMacAddress
> +  );
> +
> +/**
> +  Start the link negotiation
> +
> +  This routine calls ::Ax88179PhyWrite to start the PHY's link
> +  negotiation.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +
> +  @retval EFI_SUCCESS          The link negotiation was started.
> +  @retval other                Failed to start the link negotiation.
> +
> +**/
> +EFI_STATUS
> +Ax88179NegotiateLinkStart (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +
> +/**
> +  Complete the negotiation of the PHY link
> +
> +  This routine calls ::Ax88179PhyRead to determine if the
> +  link negotiation is complete.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in, out] pPollCount  Address of number of times this routine was polled
> +  @param [out] pbComplete      Address of boolean to receive complate status.
> +  @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
> +  @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
> +  @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
> +
> +  @retval EFI_SUCCESS          The MAC address is available.
> +  @retval other                The MAC address is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179NegotiateLinkComplete (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN OUT UINTN * pPollCount,
> +  OUT BOOLEAN * pbComplete,
> +  OUT BOOLEAN * pbLinkUp,
> +  OUT BOOLEAN * pbHiSpeed,
> +  OUT BOOLEAN * pbGigaSpeed,
> +  OUT BOOLEAN * pbFullDuplex
> +  );
> +
> +/**
> +  Read a register from the PHY
> +
> +  This routine calls ::Ax88179UsbCommand to read a PHY register.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] RegisterAddress  Number of the register to read.
> +  @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
> +
> +  @retval EFI_SUCCESS          The PHY data is available.
> +  @retval other                The PHY data is not valid.
> +
> +**/
> +
> +
> +/**
> +  Reset the AX88179
> +
> +  This routine uses ::Ax88179UsbCommand to reset the network
> +  adapter.  This routine also uses ::Ax88179PhyWrite to reset
> +  the PHY.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +
> +  @retval EFI_SUCCESS          The MAC address is available.
> +  @retval other                The MAC address is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179Reset (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +#if 0
> +/**
> +  Receive a frame from the network.
> +
> +  This routine polls the USB receive interface for a packet.  If a packet
> +  is available, this routine adds the receive packet to the list of
> +  pending receive packets.
> +
> +  This routine calls ::Ax88179NegotiateLinkComplete to verify
> +  that the link is up.  This routine also calls ::SN_Reset to
> +  reset the network adapter when necessary.  Finally this
> +  routine attempts to receive one or more packets from the
> +  network adapter.
> +
> +  @param [in] pNicDevice  Pointer to the NIC_DEVICE structure
> +  @param [in] bUpdateLink TRUE = Update link status
> +
> +**/
> +VOID
> +Ax88179Rx (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN BOOLEAN bUpdateLink
> +  );
> +#endif
> +/**
> +  Enable or disable the receiver
> +
> +  This routine calls ::Ax88179UsbCommand to update the
> +  receiver state.  This routine also calls ::Ax88179MacAddressSet
> +  to establish the MAC address for the network adapter.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] RxFilter         Simple network RX filter mask value
> +
> +  @retval EFI_SUCCESS          The MAC address was set.
> +  @retval other                The MAC address was not set.
> +
> +**/
> +EFI_STATUS
> +Ax88179RxControl (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT32 RxFilter
> +  );
> +
> +  EFI_STATUS
> +Ax88179ReloadSrom  (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +
> +/**
> +  Read an SROM location
> +
> +  This routine calls ::Ax88179UsbCommand to read data from the
> +  SROM.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] Address          SROM address
> +  @param [out] pData           Buffer to receive the data
> +
> +  @retval EFI_SUCCESS          The read was successful
> +  @retval other                The read failed
> +
> +**/
> +EFI_STATUS
> +Ax88179SromRead (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT32 Address,
> +  OUT UINT16 * pData
> +  );
> +
> +
> +EFI_STATUS
> +Ax88179EnableSromWrite  (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +
> +
> +EFI_STATUS
> +Ax88179DisableSromWrite  (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +
> +EFI_STATUS
> +Ax88179SromWrite (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT32 Address,
> +  OUT UINT16 * pData
> +  );
> +
> +/**
> +  Send a command to the USB device.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] pRequest         Pointer to the request structure
> +  @param [in, out] pBuffer     Data buffer address
> +
> +  @retval EFI_SUCCESS          The USB transfer was successful
> +  @retval other                The USB transfer failed
> +
> +**/
> +
> +EFI_STATUS
> +Ax88179UsbCommand (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN USB_DEVICE_REQUEST * pRequest,
> +  IN OUT VOID * pBuffer
> +  );
> +
> +//------------------------------------------------------------------------------
> +// EFI Component Name Protocol Support
> +//------------------------------------------------------------------------------
> +extern EFI_DRIVER_BINDING_PROTOCOL   gDriverBinding;
> +extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;  ///<  Component name protocol declaration
> +extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2; ///<  Component name 2 protocol declaration
> +
> +/**
> +  Retrieves a Unicode string that is the user readable name of the driver.
> +
> +  This function retrieves the user readable name of a driver in the form of a
> +  Unicode string. If the driver specified by This has a user readable name in
> +  the language specified by Language, then a pointer to the driver name is
> +  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
> +  by This does not support the language specified by Language,
> +  then EFI_UNSUPPORTED is returned.
> +
> +  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
> +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> +                                array indicating the language. This is the
> +                                language of the driver name that the caller is
> +                                requesting, and it must match one of the
> +                                languages specified in SupportedLanguages. The
> +                                number of languages supported by a driver is up
> +                                to the driver writer. Language is specified
> +                                in RFC 3066 or ISO 639-2 language code format.
> +  @param [out] ppDriverName     A pointer to the Unicode string to return.
> +                                This Unicode string is the name of the
> +                                driver specified by This in the language
> +                                specified by Language.
> +
> +  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
> +                                This and the language specified by Language was
> +                                returned in DriverName.
> +  @retval EFI_INVALID_PARAMETER Language is NULL.
> +  @retval EFI_INVALID_PARAMETER DriverName is NULL.
> +  @retval EFI_UNSUPPORTED       The driver specified by This does not support
> +                                the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +GetDriverName (
> +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> +  IN  CHAR8 * pLanguage,
> +  OUT CHAR16 ** ppDriverName
> +  );
> +
> +
> +/**
> +  Retrieves a Unicode string that is the user readable name of the controller
> +  that is being managed by a driver.
> +
> +  This function retrieves the user readable name of the controller specified by
> +  ControllerHandle and ChildHandle in the form of a Unicode string. If the
> +  driver specified by This has a user readable name in the language specified by
> +  Language, then a pointer to the controller name is returned in ControllerName,
> +  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
> +  managing the controller specified by ControllerHandle and ChildHandle,
> +  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
> +  support the language specified by Language, then EFI_UNSUPPORTED is returned.
> +
> +  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
> +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> +  @param [in] ControllerHandle  The handle of a controller that the driver
> +                                specified by This is managing.  This handle
> +                                specifies the controller whose name is to be
> +                                returned.
> +  @param [in] ChildHandle       The handle of the child controller to retrieve
> +                                the name of.  This is an optional parameter that
> +                                may be NULL.  It will be NULL for device
> +                                drivers.  It will also be NULL for a bus drivers
> +                                that wish to retrieve the name of the bus
> +                                controller.  It will not be NULL for a bus
> +                                driver that wishes to retrieve the name of a
> +                                child controller.
> +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> +                                array indicating the language.  This is the
> +                                language of the driver name that the caller is
> +                                requesting, and it must match one of the
> +                                languages specified in SupportedLanguages. The
> +                                number of languages supported by a driver is up
> +                                to the driver writer. Language is specified in
> +                                RFC 3066 or ISO 639-2 language code format.
> +  @param [out] ppControllerName A pointer to the Unicode string to return.
> +                                This Unicode string is the name of the
> +                                controller specified by ControllerHandle and
> +                                ChildHandle in the language specified by
> +                                Language from the point of view of the driver
> +                                specified by This.
> +
> +  @retval EFI_SUCCESS           The Unicode string for the user readable name in
> +                                the language specified by Language for the
> +                                driver specified by This was returned in
> +                                DriverName.
> +  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
> +  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
> +                                EFI_HANDLE.
> +  @retval EFI_INVALID_PARAMETER Language is NULL.
> +  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> +  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
> +                                managing the controller specified by
> +                                ControllerHandle and ChildHandle.
> +  @retval EFI_UNSUPPORTED       The driver specified by This does not support
> +                                the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +GetControllerName (
> +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> +  IN  EFI_HANDLE ControllerHandle,
> +  IN OPTIONAL EFI_HANDLE ChildHandle,
> +  IN  CHAR8 * pLanguage,
> +  OUT CHAR16 ** ppControllerName
> +  );
> +
> +EFI_STATUS
> +Ax88179SetMedium (
> +  IN NIC_DEVICE * pNicDevice
> +  );
> +//-----------------------------------------------------------------------------
> +
> +
> +
> +
> +
> +#define ACCESS_MAC  0x01
> +#define ACCESS_PHY  0x02
> +
> +#define PLSR                0x02
> +  #define PLSR_USB_FS  0x01
> +  #define PLSR_USB_HS  0x02
> +  #define PLSR_USB_SS  0x04
> +
> +#define NODE_ID               0x10
> +
> +#define RXCTL                 0x0b
> +  #define RXCTL_PRO         0x0001  ///<  Receive all packets
> +  #define RXCTL_AMALL       0x0002  ///<  Receive all multicast packets
> +  #define RXCTL_SEP         0x0004  ///<  Save error packets
> +  #define RXCTL_AB          0x0008  ///<  Receive broadcast packets
> +  #define RXCTL_AM          0x0010  ///<  Use multicast destination address hash table
> +  #define RXCTL_AP          0x0020  ///<  Accept physical address from Multicast Filter
> +  #define RXCTL_ARP         0x0040  ///<  Accept runt packet
> +  #define RXCTL_SO          0x0080  ///<  Start operation
> +  #define RXCTL_DROPCRCERR  0x0100  ///<  RX header 1 formate selection
> +  #define RXCTL_IPE         0x0200  ///<  RX header 2 formate selection
> +  #define RXCTL_TXPADCRC    0x0400  ///<  RX header 3 formate selection
> +  #define RXCTL_LPBK        0x1000  ///<  MAC loop back for diagnostic
> +
> +#define MULCATFLTARRY       0x16  ///<  Write the multicast hash table, Data: New 8 byte value
> +
> +#define MEDIUMSTSMOD          0x22
> +  #define MEDIUMSTSMOD_GM   0x0001  ///<  Gigabit Mode
> +  #define MEDIUMSTSMOD_FD   0x0002  ///<  Full duplex
> +  #define MEDIUMSTSMOD_ONE  0x0004  ///<  Must be one
> +  #define MEDIUMSTSMOD_ENCK 0x0008  ///<  Add in 04h
> +  #define MEDIUMSTSMOD_RFC  0x0010  ///<  RX flow control enable
> +  #define MEDIUMSTSMOD_TFC  0x0020  ///<  TX flow control enable
> +  #define MEDIUMSTSMOD_JFE  0x0040  ///<  Pause frame enable
> +  #define MEDIUMSTSMOD_PF   0x0080  ///<  Pause frame enable
> +  #define MEDIUMSTSMOD_RE   0x0100  ///<  Receive enable
> +  #define MEDIUMSTSMOD_PS   0x0200  ///<  Port speed 1=100, 0=10 Mbps
> +  #define MEDIUMSTSMOD_SBP  0x0800  ///<  Stop back pressure
> +  #define MEDIUMSTSMOD_SM   0x1000  ///<  Super MAC support
> +
> +#define MONITORSTAUS          0x24
> +  #define  MONITORSTAUS_PMETYPE   0x40
> +  #define  MONITORSTAUS_PMEPOL    0x20
> +
> +#define PHYPWRRSTCTL          0x26
> +  #define PHYPWRRSTCTL_IPRL     0x20
> +  #define PHYPWRRSTCTL_OSCDSSEL 0x80
> +  #define PHYPWRRSTCTL_BZTYPE       0x4
> +  #define PHYPWRRSTCTL_BZ      0x10
> +
> +#define SISSR                 0x28
> +  #define SISSR_PSEL        0x01
> +  #define SISSR_ASEL        0x02
> +
> +#define RXBINQCTRL            0x2e
> +  #define RXBINQCTRL_TIMEN  0x01
> +  #define RXBINQCTRL_IFGEN  0x02
> +  #define RXBINQCTRL_SIZEN  0x04
> +
> +#define RXBINQTIMERL          0x2f
> +#define RXBINQTIMERH          0x30
> +#define RXBINQSIZE            0x31
> +#define RXBINQIFG             0x32
> +
> +#define CLKSELECT             0x33
> +  #define CLKSELECT_ACS       0x02
> +  #define CLKSELECT_BCS       0x01
> +
> +#define PAUSE_WATERLVL_HIGH   0x54
> +#define PAUSE_WATERLVL_LOW    0x55
> +
> +#define RXFREEBUF             0x57
> +  #define MAX_RXBUF_PAGE    0x067F
> +
> +#define PHY_BMCR                        0       ///<  Control register
> +  #define BMCR_RESET                      0x8000  ///<  1 = Reset the PHY, bit clears after reset
> +  #define BMCR_LOOPBACK                   0x4000  ///<  1 = Loopback enabled
> +  #define BMCR_AUTONEGOTIATION_ENABLE     0x1000  ///<  1 = Enable autonegotiation
> +  #define BMCR_POWER_DOWN                 0x0800  ///<  1 = Power down
> +  #define BMCR_ISOLATE                    0x0400  ///<  0 = Isolate PHY
> +  #define BMCR_RESTART_AUTONEGOTIATION    0x0200  ///<  1 = Restart autonegotiation
> +  #define BMCR_FULL_DUPLEX                0x0100  ///<  Full duplex operation
> +  #define BMCR_COLLISION_TEST             0x0080  ///<  1 = Collision test enabled
> +  #define BMCR_1000MBPS                   0x40  ///<  Forced mode in 1000Mbps
> +  #define BMCR_100MBPS                    0x2000    ///<  Forced mode in 10Mbps
> +
> +#define PHY_BMSR                        1       ///<  Status register
> +  #define BMSR_100BASET4                  0x8000  ///<  1 = 100BASE-T4 mode
> +  #define BMSR_100BASETX_FDX              0x4000  ///<  1 = 100BASE-TX full duplex
> +  #define BMSR_100BASETX_HDX              0x2000  ///<  1 = 100BASE-TX half duplex
> +  #define BMSR_10BASET_FDX                0x1000  ///<  1 = 10BASE-T full duplex
> +  #define BMSR_10BASET_HDX                0x0800  ///<  1 = 10BASE-T half duplex
> +  #define BMSR_MF                         0x0040  ///<  1 = PHY accepts frames with preamble suppressed
> +  #define BMSR_AUTONEG_CMPLT              0x0020  ///<  1 = Autonegotiation complete
> +  #define BMSR_RF                         0x0010  ///<  1 = Remote fault
> +  #define BMSR_AUTONEG                    0x0008  ///<  1 = Able to perform autonegotiation
> +  #define BMSR_LINKST                     0x0004  ///<  1 = Link up
> +  #define BMSR_JABBER_DETECT              0x0002  ///<  1 = jabber condition detected
> +  #define BMSR_EXTENDED_CAPABILITY        0x0001  ///<  1 = Extended register capable
> +
> +#define PHY_ANAR                        4       ///<  Autonegotiation advertisement register
> +  #define AN_NP                           0x8000  ///<  1 = Next page available
> +  #define AN_RF                           0x2000  ///<  1 = Remote fault indicated by link partner
> +  #define AN_FCS                          0x0400  ///<  1 = Flow control ability
> +  #define AN_T4                           0x0200  ///<  1 = 100BASE-T4 support
> +  #define AN_TX_FDX                       0x0100  ///<  1 = 100BASE-TX Full duplex
> +  #define AN_TX_HDX                       0x0080  ///<  1 = 100BASE-TX support
> +  #define AN_10_FDX                       0x0040  ///<  1 = 10BASE-T Full duplex
> +  #define AN_10_HDX                       0x0020  ///<  1 = 10BASE-T support
> +  #define AN_CSMA_CD                      0x0001  ///<  1 = IEEE 802.3 CSMA/CD support
> +
> +#define PHY_ANLPAR                      5       ///<  Autonegotiation link parter ability register
> +
> +#define PHY_PHYSR                       0x11
> +  #define PHYSR_SPEED_MASK                0xC000
> +  #define PHYSR_1000                      0x8000
> +  #define PHYSR_100                       0x4000
> +  #define PHYSR_FULLDUP                   0x2000
> +  #define PHYSR_LINK                      0x400
> +
> +EFI_STATUS
> +Ax88179PhyRead (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT8 RegisterAddress,
> +  IN OUT UINT16 * pPhyData
> +  );
> +
> +EFI_STATUS
> +Ax88179PhyWrite (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT8 RegisterAddress,
> +  IN UINT16 PhyData
> +  );
> +
> +EFI_STATUS
> +Ax88179MacRead (
> +  IN  UINT8 Offset,
> +  IN  UINT8 Length,
> +  IN  NIC_DEVICE * pNicDevice,
> +  IN  OUT  VOID * pData
> +  );
> +
> +EFI_STATUS
> +Ax88179SetIInInterval (
> +  IN  NIC_DEVICE * pNicDevice,
> +  IN  UINT8 Offset
> +  );
> +
> +EFI_STATUS
> +Ax88179MacWrite (
> +  IN  UINT8 Offset,
> +  IN  UINT8 Length,
> +  IN  NIC_DEVICE * pNicDevice,
> +  IN  OUT  VOID * pData
> +  );
> +
> +EFI_STATUS
> +Ax88179MacAddressGet (
> +  IN NIC_DEVICE * pNicDevice,
> +  OUT UINT8 * pMacAddress
> +  );
> +
> +EFI_STATUS
> +Ax88179MacAddressSet (
> +  IN NIC_DEVICE * pNicDevice,
> +  OUT UINT8 * pMacAddress
> +  );
> +
> +BOOLEAN
> +Ax88179GetLinkStatus (
> +  IN NIC_DEVICE * pNicDevice
> +);
> +
> +EFI_STATUS
> +Ax88179BulkIn(
> +  IN NIC_DEVICE * pNicDevice
> +);
> +
> +
> +#endif  //  _AX88179_H_
> diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> new file mode 100644
> index 000000000000..7b2db9b74285
> --- /dev/null
> +++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> @@ -0,0 +1,1026 @@
> + /** @file
> +  Implement the interface to the AX88179 Ethernet controller.
> +
> +  This module implements the interface to the ASIX AX88179
> +  USB to Ethernet MAC with integrated 10/100 PHY.  Note that this implementation
> +  only supports the integrated PHY since no other test cases were available.
> +
> +  Copyright (c) 2011, Intel Corporation
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include "Ax88179.h"
> +
> +
> +/**
> +  Compute the CRC
> +
> +  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
> +
> +  @returns The CRC-32 value associated with this MAC address
> +
> +**/
> +UINT32
> +Ax88179Crc (
> +  IN UINT8 * pMacAddress
> +  )
> +{
> +  UINT32 BitNumber;
> +  INT32 Carry;
> +  INT32 Crc;
> +  UINT32 Data;
> +  UINT8 * pEnd;
> +
> +  //
> +  //  Walk the MAC address
> +  //
> +  Crc = -1;
> +  pEnd = &pMacAddress[ PXE_HWADDR_LEN_ETHER ];
> +  while ( pEnd > pMacAddress ) {
> +    Data = *pMacAddress++;
> +
> +
> +    //
> +    //  CRC32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
> +    //
> +    //          1 0000 0100 1100 0001 0001 1101 1011 0111
> +    //
> +    for ( BitNumber = 0; 8 > BitNumber; BitNumber++ ) {
> +      Carry = (( Crc >> 31 ) & 1 ) ^ ( Data & 1 );
> +      Crc <<= 1;
> +      if ( 0 != Carry ) {
> +        Crc ^= 0x04c11db7;
> +      }
> +      Data >>= 1;
> +    }
> +  }
> +
> +  //
> +  //  Return the CRC value
> +  //
> +  return (UINT32) Crc;
> +}
> +
> +/**
> +  Get the MAC address
> +
> +  This routine calls ::Ax88179UsbCommand to request the MAC
> +  address from the network adapter.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
> +
> +  @retval EFI_SUCCESS          The MAC address is available.
> +  @retval other                The MAC address is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179MacAddressGet (
> +  IN NIC_DEVICE * pNicDevice,
> +  OUT UINT8 * pMacAddress
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status  = Ax88179MacRead (NODE_ID,
> +                            PXE_HWADDR_LEN_ETHER,
> +                            pNicDevice,
> +                            pMacAddress);
> +
> +  return Status;
> +}
> +
> +/**
> +  Set the MAC address
> +
> +  This routine calls ::Ax88179UsbCommand to set the MAC address
> +  in the network adapter.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] pMacAddress      Address of a six byte buffer to containing the new MAC address.
> +
> +  @retval EFI_SUCCESS          The MAC address was set.
> +  @retval other                The MAC address was not set.
> +
> +**/
> +EFI_STATUS
> +Ax88179MacAddressSet (
> +  IN NIC_DEVICE * pNicDevice,
> +  OUT UINT8 * pMacAddress
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status  = Ax88179MacWrite (NODE_ID,
> +                             PXE_HWADDR_LEN_ETHER,
> +                             pNicDevice,
> +                             pMacAddress);
> +
> +  return Status;
> +}
> +
> +/**
> +  Clear the multicast hash table
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +
> +**/
> +VOID
> +Ax88179MulticastClear (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  int i = 0;
> +  //
> +  // Clear the multicast hash table
> +  //
> +
> +  for ( i = 0 ; i < 8 ; i++ )
> +      pNicDevice->MulticastHash[i] = 0;
> +}
> +/**
> +  Enable a multicast address in the multicast hash table
> +
> +  This routine calls ::Ax88179Crc to compute the hash bit for
> +  this MAC address.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
> +
> +**/
> +VOID
> +Ax88179MulticastSet (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT8 * pMacAddress
> +  )
> +{
> +  UINT32 Crc;
> +  //
> +  // Compute the CRC on the destination address
> +  //
> +  Crc = Ax88179Crc (pMacAddress) >> 26;
> +  //
> +  //  Set the bit corresponding to the destination address
> +  //
> +  pNicDevice->MulticastHash [ Crc >> 3 ] |= ( 1<< (Crc& 7));
> +}
> +
> +/**
> +  Start the link negotiation
> +
> +  This routine calls ::Ax88179PhyWrite to start the PHY's link
> +  negotiation.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +
> +  @retval EFI_SUCCESS          The link negotiation was started.
> +  @retval other                Failed to start the link negotiation.
> +
> +**/
> +EFI_STATUS
> +Ax88179NegotiateLinkStart (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  UINT16 Control = 0;
> +  EFI_STATUS Status;
> +
> +#if FORCE_100Mbps
> +  Ax88179PhyRead ( pNicDevice,
> +                   0x09,
> +                   &Control );
> +  Control &= 0xFCFF;
> +  Ax88179PhyWrite ( pNicDevice, 0x09, Control );
> +#endif
> +
> +  //
> +  // Set the link speed and duplex
> +  //
> +  Control = BMCR_AUTONEGOTIATION_ENABLE
> +          | BMCR_RESTART_AUTONEGOTIATION;
> +  if ( pNicDevice->b1000Mbps ) {
> +    Control |= BMCR_1000MBPS;
> +  } else if ( pNicDevice->b100Mbps ) {
> +    Control |= BMCR_100MBPS;
> +  }
> +
> +  if ( pNicDevice->bFullDuplex ) {
> +    Control |= BMCR_FULL_DUPLEX;
> +  }
> +  Status = Ax88179PhyWrite ( pNicDevice, PHY_BMCR, Control );
> +  if (!EFI_ERROR(Status))
> +    gBS->Stall(3000000);
> +  //
> +  // Return the operation status
> +  //
> +  return Status;
> +}
> +
> +/**
> +  Complete the negotiation of the PHY link
> +
> +  This routine calls ::Ax88179PhyRead to determine if the
> +  link negotiation is complete.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in, out] pPollCount  Address of number of times this routine was polled
> +  @param [out] pbComplete      Address of boolean to receive complate status.
> +  @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
> +  @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
> +  @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
> +
> +  @retval EFI_SUCCESS          The MAC address is available.
> +  @retval other                The MAC address is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179NegotiateLinkComplete (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN OUT UINTN * pPollCount,
> +  OUT BOOLEAN * pbComplete,
> +  OUT BOOLEAN * pbLinkUp,
> +  OUT BOOLEAN * pbHiSpeed,
> +  OUT BOOLEAN * pbGigaSpeed,
> +  OUT BOOLEAN * pbFullDuplex
> +  )
> +{
> +  UINT16 PhyData;
> +  EFI_STATUS  Status;
> +
> +  //
> +  //  Determine if the link is up.
> +  //
> +  *pbComplete = FALSE;
> +
> +  //
> +  //  Get the link status
> +  //
> +  Status = Ax88179PhyRead ( pNicDevice,
> +                            PHY_PHYSR,
> +                            &PhyData );
> +
> +  if ( !EFI_ERROR ( Status )) {
> +    *pbLinkUp =  (BOOLEAN)( 0 != ( PhyData & PHYSR_LINK ));
> +    if (*pbLinkUp) {
> +      //
> +      //  Determine if the autonegotiation is complete.
> +      //
> +      Status = Ax88179PhyRead ( pNicDevice,
> +                            PHY_BMSR,
> +                            &PhyData );
> +      if ( !EFI_ERROR (Status)) {
> +          *pbComplete =  (BOOLEAN)( 0 != ( PhyData & BMSR_AUTONEG_CMPLT ));
> +
> +          if ( 0 != *pbComplete ) {
> +            //
> +            //  Get the partners capabilities.
> +            //
> +            Status = Ax88179PhyRead ( pNicDevice,
> +                                      PHY_PHYSR,
> +                                      &PhyData );
> +            if ( !EFI_ERROR ( Status )) {
> +              //
> +              //  Autonegotiation is complete
> +              //  Determine the link speed.
> +              //
> +              *pbGigaSpeed = (BOOLEAN) (( PhyData & PHYSR_SPEED_MASK ) == PHYSR_1000 );
> +              *pbHiSpeed = (BOOLEAN)(( PhyData & PHYSR_SPEED_MASK ) == PHYSR_100 );
> +
> +              //
> +              //  Determine the link duplex.
> +              //
> +              *pbFullDuplex = (BOOLEAN)( (PhyData & PHYSR_FULLDUP) == PHYSR_FULLDUP);
> +          }
> +        }
> +      }
> +    }
> +  }
> +
> +
> +  //
> +  // Return the operation status
> +  //
> +  return Status;
> +}
> +
> +
> +/**
> +  Read a register from the PHY
> +
> +  This routine calls ::Ax88179UsbCommand to read a PHY register.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] RegisterAddress  Number of the register to read.
> +  @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
> +
> +  @retval EFI_SUCCESS          The PHY data is available.
> +  @retval other                The PHY data is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179PhyRead (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT8 RegisterAddress,
> +  IN OUT UINT16 * pPhyData
> +  )
> +{
> +  USB_DEVICE_REQUEST SetupMsg;
> +  EFI_STATUS Status;
> +
> +  //
> +  //  Read the PHY register address.
> +  //
> +  SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
> +                       | USB_REQ_TYPE_VENDOR
> +                       | USB_TARGET_DEVICE;
> +  SetupMsg.Request = ACCESS_PHY;
> +  SetupMsg.Value = pNicDevice->PhyId;
> +  SetupMsg.Index = RegisterAddress;
> +  SetupMsg.Length = sizeof ( *pPhyData );
> +  Status = Ax88179UsbCommand ( pNicDevice,
> +                               &SetupMsg,
> +                               pPhyData );
> +
> +  //
> +  //  Return the operation status.
> +  //
> +  return Status;
> +}
> +
> +
> +/**
> +  Write to a PHY register
> +
> +  This routine calls ::Ax88179UsbCommand to write a PHY register.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] RegisterAddress  Number of the register to read.
> +  @param [in] PhyData          Address of a buffer to receive the PHY register value
> +
> +  @retval EFI_SUCCESS          The PHY data was written.
> +  @retval other                Failed to wwrite the PHY register.
> +
> +**/
> +EFI_STATUS
> +Ax88179PhyWrite (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT8 RegisterAddress,
> +  IN UINT16 PhyData
> +  )
> +{
> +  USB_DEVICE_REQUEST SetupMsg;
> +  EFI_STATUS Status;
> +
> +  //
> +  //  Write the PHY register
> +  //
> +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> +                       | USB_TARGET_DEVICE;
> +  SetupMsg.Request = ACCESS_PHY;
> +  SetupMsg.Value = pNicDevice->PhyId;
> +  SetupMsg.Index = RegisterAddress;
> +  SetupMsg.Length = sizeof ( PhyData );
> +  Status = Ax88179UsbCommand ( pNicDevice,
> +                               &SetupMsg,
> +                               &PhyData );
> +  //
> +  //  Return the operation status.
> +  //
> +  return Status;
> +}
> +
> +
> +/**
> +  Reset the AX88179
> +
> +  This routine uses ::Ax88179UsbCommand to reset the network
> +  adapter.  This routine also uses ::Ax88179PhyWrite to reset
> +  the PHY.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +
> +  @retval EFI_SUCCESS          The MAC address is available.
> +  @retval other                The MAC address is not valid.
> +
> +**/
> +EFI_STATUS
> +Ax88179Reset (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  EFI_STATUS Status;
> +  UINT16  val;
> +  UINT8 val8;
> +
> +  Status = Ax88179SetIInInterval(pNicDevice, 0xff);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val8 = 0;
> +  Status  = Ax88179MacRead (PLSR,
> +                            sizeof(val8),
> +                            pNicDevice,
> +                            &val8);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  if (val8 & PLSR_USB_SS)
> +    pNicDevice->usbMaxPktSize = 1024;
> +  else
> +    pNicDevice->usbMaxPktSize = 512;
> +
> +  val = 0;
> +  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> +                             sizeof (val),
> +                             pNicDevice,
> +                             &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  gBS->Stall ( 10000 );
> +
> +  val =  PHYPWRRSTCTL_IPRL;
> +  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> +                             sizeof (val),
> +                             pNicDevice,
> +                             &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  gBS->Stall ( 200000 );
> +
> +  val = CLKSELECT_BCS | CLKSELECT_ACS;
> +  Status = Ax88179MacWrite ( CLKSELECT,
> +                             1,
> +                             pNicDevice,
> +                             &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  gBS->Stall ( 100000 );
> +
> +  val = 0x52;
> +  Status = Ax88179MacWrite ( PAUSE_WATERLVL_HIGH,
> +                             1,
> +                             pNicDevice,
> +                             &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val = 0x34;
> +  Status = Ax88179MacWrite ( PAUSE_WATERLVL_LOW,
> +                             1,
> +                             pNicDevice,
> +                             &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val = RXBINQCTRL_TIMEN | RXBINQCTRL_IFGEN | RXBINQCTRL_SIZEN;
> +
> +  Status =  Ax88179MacWrite ( RXBINQCTRL,
> +                              0x01,
> +                              pNicDevice,
> +                              &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val = 0;
> +  Status =  Ax88179MacWrite ( RXBINQTIMERL,
> +                              0x01,
> +                              pNicDevice,
> +                              &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val = 0;
> +  Status =  Ax88179MacWrite ( RXBINQTIMERH,
> +                              0x01,
> +                              pNicDevice,
> +                              &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val = 12; //AX88179_BULKIN_SIZE_INK - 1;
> +  Status =  Ax88179MacWrite ( RXBINQSIZE,
> +                              0x01,
> +                              pNicDevice,
> +                              &val);
> +
> +  if (EFI_ERROR(Status)) goto err;
> +
> +  val = 0x0F;
> +  Status =  Ax88179MacWrite ( RXBINQIFG,
> +                              0x01,
> +                              pNicDevice,
> +                              &val);
> +
> +err:
> +  return Status;
> +}
> +
> +EFI_STATUS
> +Ax88179RxControl (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT32 RxFilter
> +  )
> +{
> +  UINT16 MediumStatus;
> +  UINT16 RxControl = 0;
> +  EFI_STATUS Status = EFI_SUCCESS;
> +  //
> +  // Enable the receiver if something is to be received
> +  //
> +  if ( 0 != RxFilter ) {
> +    //
> +    //  Enable the receiver
> +    //
> +    Status  = Ax88179MacRead (MEDIUMSTSMOD,
> +                              sizeof ( MediumStatus ),
> +                              pNicDevice,
> +                              &MediumStatus);
> +
> +    if ( !EFI_ERROR ( Status ) && pNicDevice->CurMediumStatus != MediumStatus) {
> +        MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
> +        if ( pNicDevice->bFullDuplex ) {
> +          MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD;
> +        } else {
> +          MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD);
> +        }
> +        if ( pNicDevice->b1000Mbps ) {
> +          MediumStatus |= MEDIUMSTSMOD_GM;
> +          MediumStatus |= MEDIUMSTSMOD_ENCK;
> +          MediumStatus &= ~MEDIUMSTSMOD_PS;
> +        } else {
> +          MediumStatus &= ~MEDIUMSTSMOD_GM;
> +          MediumStatus &= ~MEDIUMSTSMOD_ENCK;
> +          if ( pNicDevice->b100Mbps ) {
> +            MediumStatus |= MEDIUMSTSMOD_PS;
> +          }  else {
> +            MediumStatus &= ~MEDIUMSTSMOD_PS;
> +          }
> +        }
> +        Status  = Ax88179MacWrite (MEDIUMSTSMOD,
> +                                   sizeof ( MediumStatus ),
> +                                   pNicDevice,
> +                                   &MediumStatus);
> +        if ( !EFI_ERROR ( Status ))
> +          pNicDevice->CurMediumStatus = MediumStatus;
> +    }
> +  }
> +
> +  RxControl = RXCTL_SO | RXCTL_IPE;
> +
> +  //
> +  //  Enable multicast if requested
> +  //
> +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
> +    RxControl |= RXCTL_AM;
> +    //
> +    //  Update the multicast hash table
> +    //
> +    Status  = Ax88179MacWrite (MULCATFLTARRY,
> +                               8,
> +                               pNicDevice,
> +                               &pNicDevice->MulticastHash );
> +  }
> +
> +  //
> +  //  Enable all multicast if requested
> +  //
> +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST )) {
> +    RxControl |= RXCTL_AMALL;
> +  }
> +  //
> +  //  Enable broadcast if requested
> +  //
> +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST )) {
> +    RxControl |= RXCTL_AB;
> +  }
> +
> +  //
> +  //  Enable promiscuous mode if requested
> +  //
> +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS )) {
> +    RxControl |= RXCTL_PRO;
> +  }
> +
> +  //
> +  //  Update the receiver control
> +  //
> +  if (pNicDevice->CurRxControl != RxControl) {
> +    Status  = Ax88179MacWrite (RXCTL,
> +                               0x02,
> +                               pNicDevice,
> +                               &RxControl);
> +    if ( !EFI_ERROR ( Status ))
> +      pNicDevice->CurRxControl = RxControl;
> +  }
> +
> +  //
> +  // Return the operation status
> +  //
> +  return Status;
> +}
> +
> +EFI_STATUS
> +Ax88179ReloadSrom  (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status = EFI_UNSUPPORTED;
> +  return Status;
> +
> +}
> +
> +/**
> +  Read an SROM location
> +
> +  This routine calls ::Ax88179UsbCommand to read data from the
> +  SROM.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] Address          SROM address
> +  @param [out] pData           Buffer to receive the data
> +
> +  @retval EFI_SUCCESS          The read was successful
> +  @retval other                The read failed
> +
> +**/
> +EFI_STATUS
> +Ax88179SromRead (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT32 Address,
> +  OUT UINT16 * pData
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status = EFI_UNSUPPORTED;
> +  return Status;
> +}
> +
> +EFI_STATUS
> +Ax88179EnableSromWrite  (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status = EFI_UNSUPPORTED;
> +  return Status;
> +}
> +
> +
> +EFI_STATUS
> +Ax88179DisableSromWrite  (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status = EFI_UNSUPPORTED;
> +  return Status;
> +}
> +
> +/**
> +  Write an SROM location
> +
> +  This routine calls ::Ax88179UsbCommand to write data from the
> +  SROM.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] Address          SROM address
> +  @param [out] pData           Buffer of data to write
> +
> +  @retval EFI_SUCCESS          The write was successful
> +  @retval other                The write failed
> +
> +**/
> +EFI_STATUS
> +Ax88179SromWrite (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN UINT32 Address,
> +  IN UINT16 * pData
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +  Status = EFI_UNSUPPORTED;
> +  return Status;
> +}
> +
> +
> +
> +/**
> +  Send a command to the USB device.
> +
> +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> +  @param [in] pRequest         Pointer to the request structure
> +  @param [in, out] pBuffer     Data buffer address
> +
> +  @retval EFI_SUCCESS          The USB transfer was successful
> +  @retval other                The USB transfer failed
> +
> +**/
> +
> +EFI_STATUS
> +Ax88179UsbCommand (
> +  IN NIC_DEVICE * pNicDevice,
> +  IN USB_DEVICE_REQUEST * pRequest,
> +  IN OUT VOID * pBuffer
> +  )
> +{
> +
> +  EFI_USB_DATA_DIRECTION Direction;
> +  EFI_USB_IO_PROTOCOL * pUsbIo;
> +  EFI_STATUS Status = EFI_TIMEOUT;
> +  UINT32 CmdStatus = EFI_USB_NOERROR;
> +  int i;
> +  //
> +  // Determine the transfer direction
> +  //
> +  Direction = EfiUsbNoData;
> +  if ( 0 != pRequest->Length ) {
> +    Direction = ( 0 != ( pRequest->RequestType & USB_ENDPOINT_DIR_IN ))
> +                        ? EfiUsbDataIn : EfiUsbDataOut;
> +  }
> +
> +  //
> +  // Issue the command
> +  //
> +  pUsbIo = pNicDevice->pUsbIo;
> +
> +  for ( i = 0 ; i < 3 && EFI_TIMEOUT == Status; i++) {
> +    Status = pUsbIo->UsbControlTransfer ( pUsbIo,
> +                                        pRequest,
> +                                        Direction,
> +                                        USB_BUS_TIMEOUT,
> +                                        pBuffer,
> +                                        pRequest->Length,
> +                                        &CmdStatus );
> +  }
> +  //
> +  // Determine the operation status
> +  //
> +  if (EFI_ERROR(Status) || EFI_ERROR(CmdStatus))
> +    Status = EFI_DEVICE_ERROR;
> +  //
> +  // Return the operation status
> +  //
> +  return Status;
> +}
> +
> +EFI_STATUS
> +Ax88179MacRead (
> +  IN  UINT8 Offset,
> +  IN  UINT8 Length,
> +  IN  NIC_DEVICE * pNicDevice,
> +  IN  OUT  VOID * pData
> +  )
> +{
> +
> +  EFI_STATUS Status;
> +  USB_DEVICE_REQUEST SetupMsg;
> +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> +                       | USB_TARGET_DEVICE
> +                       | USB_ENDPOINT_DIR_IN;
> +
> +  SetupMsg.Request = ACCESS_MAC;
> +  SetupMsg.Value  = Offset;
> +  SetupMsg.Index  = Length;
> +  SetupMsg.Length = SetupMsg.Index;
> +
> +  Status = Ax88179UsbCommand ( pNicDevice,
> +                               &SetupMsg,
> +                               pData );
> +
> +  return Status;
> +
> +}
> +
> +EFI_STATUS
> +Ax88179MacWrite (
> +  IN  UINT8 Offset,
> +  IN  UINT8 Length,
> +  IN  NIC_DEVICE * pNicDevice,
> +  IN  OUT  VOID * pData
> +  )
> +{
> +
> +  EFI_STATUS Status;
> +  USB_DEVICE_REQUEST SetupMsg;
> +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> +                       | USB_TARGET_DEVICE;
> +
> +  SetupMsg.Request = ACCESS_MAC;
> +  SetupMsg.Value  = Offset;
> +  SetupMsg.Index  = Length;
> +  SetupMsg.Length = SetupMsg.Index;
> +
> +  Status = Ax88179UsbCommand ( pNicDevice,
> +                               &SetupMsg,
> +                               pData );
> +
> +  return Status;
> +
> +}
> +
> +EFI_STATUS
> +Ax88179SetIInInterval (
> +  IN  NIC_DEVICE * pNicDevice,
> +  IN  UINT8 Interval
> +  )
> +{
> +
> +  EFI_STATUS Status;
> +  USB_DEVICE_REQUEST SetupMsg;
> +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> +                       | USB_TARGET_DEVICE;
> +
> +  SetupMsg.Request = 0x91;
> +  SetupMsg.Value  = Interval;
> +  SetupMsg.Index  = 0;
> +  SetupMsg.Length = 0;
> +
> +  Status = Ax88179UsbCommand ( pNicDevice,
> +                               &SetupMsg,
> +                               NULL );
> +
> +  return Status;
> +
> +}
> +
> +EFI_STATUS
> +Ax88179SetMedium (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  UINT16 MediumStatus;
> +  EFI_STATUS Status;
> +
> +  MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
> +  if ( pNicDevice->bFullDuplex ) {
> +    MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD;
> +  } else {
> +    MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC | MEDIUMSTSMOD_FD);
> +  }
> +  if ( pNicDevice->b1000Mbps ) {
> +    MediumStatus |= MEDIUMSTSMOD_GM;
> +    MediumStatus &= ~MEDIUMSTSMOD_PS;
> +  } else {
> +    MediumStatus &= ~MEDIUMSTSMOD_GM;
> +    if ( pNicDevice->b100Mbps ) {
> +      MediumStatus |= MEDIUMSTSMOD_PS;
> +    } else {
> +      MediumStatus &= ~MEDIUMSTSMOD_PS;
> +    }
> +  }
> +  Status  = Ax88179MacWrite (MEDIUMSTSMOD,
> +                             sizeof ( MediumStatus ),
> +                             pNicDevice,
> +                             &MediumStatus);
> +  if ( !EFI_ERROR ( Status ))
> +  pNicDevice->CurMediumStatus = MediumStatus;
> +
> +  return Status;
> +}
> +
> +
> +BOOLEAN
> +Ax88179GetLinkStatus (
> +  IN NIC_DEVICE * pNicDevice
> +)
> +{
> +  UINT32 CmdStatus;
> +  EFI_USB_IO_PROTOCOL * pUsbIo;
> +  UINT64    IntData = 0;
> +  UINTN     IntDataLeng = 8;
> +  EFI_STATUS Status;
> +
> +  //
> +  // Issue the command
> +  //
> +  pUsbIo = pNicDevice->pUsbIo;
> +  Status = pUsbIo->UsbSyncInterruptTransfer( pUsbIo,
> +                                        USB_ENDPOINT_DIR_IN | INTERRUPT_ENDPOINT,
> +                                        &IntData,
> +                                        &IntDataLeng,
> +                                        USB_BUS_TIMEOUT,
> +                                        &CmdStatus );
> +
> +  if ( EFI_ERROR(Status) || EFI_ERROR(CmdStatus) || 0 == IntDataLeng)
> +    return FALSE;
> +
> +  return (IntData & 0x10000)? TRUE : FALSE;
> +
> +}
> +
> +EFI_STATUS
> +Ax88179BulkIn(
> +  IN NIC_DEVICE * pNicDevice
> +)
> +{
> +  int i;
> +  UINT16  val;
> +  UINTN LengthInBytes = 0;
> +  UINTN TMP_LENG = AX88179_MAX_BULKIN_SIZE;
> +  UINTN CURBufSize = AX88179_MAX_BULKIN_SIZE;
> +  UINTN PREBufSize = 0;
> +  EFI_STATUS Status = EFI_NOT_READY;
> +  EFI_USB_IO_PROTOCOL *pUsbIo;
> +  UINT32 TransferStatus;
> +
> +  pNicDevice->SkipRXCnt = 0;
> +
> +  pUsbIo = pNicDevice->pUsbIo;
> +  for ( i = 0 ; i < (AX88179_MAX_BULKIN_SIZE / 512) && pUsbIo != NULL; i++) {
> +    VOID* tmpAddr = 0;
> +
> +    if (pNicDevice->bSetZeroLen) {
> +      val =  PHYPWRRSTCTL_IPRL | PHYPWRRSTCTL_BZ;
> +      Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> +                                 sizeof (val),
> +                                 pNicDevice,
> +                                 &val);
> +      if (EFI_ERROR(Status)) {
> +        LengthInBytes = 0;
> +        Status = EFI_NOT_READY;
> +        goto no_pkt;
> +      }
> +      pNicDevice->bSetZeroLen = FALSE;
> +    }
> +    tmpAddr = (VOID*) &pNicDevice->pBulkInbuf[LengthInBytes];
> +
> +    Status =  EFI_NOT_READY;
> +    Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
> +                          USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
> +                          tmpAddr,
> +                          &TMP_LENG,
> +                          BULKIN_TIMEOUT,
> +                          &TransferStatus );
> +
> +    if (( !EFI_ERROR ( Status )) && ( !EFI_ERROR ( TransferStatus )) && TMP_LENG != 0) {
> +      LengthInBytes += TMP_LENG;
> +      if ((TMP_LENG % pNicDevice->usbMaxPktSize) != 0) {
> +        goto done;
> +      }
> +      CURBufSize = CURBufSize - TMP_LENG;
> +      TMP_LENG = CURBufSize;
> +      pNicDevice->bSetZeroLen = TRUE;
> +    } else if (( !EFI_ERROR ( Status )) &&
> +               ( !EFI_ERROR ( TransferStatus )) &&
> +               ( TMP_LENG == 0) &&
> +               LengthInBytes) {
> +      if (PREBufSize == CURBufSize) {
> +        goto done;
> +      }
> +      TMP_LENG = CURBufSize;
> +      PREBufSize = CURBufSize;
> +      pNicDevice->bSetZeroLen = TRUE;
> +    } else if (( !EFI_ERROR ( Status )) &&
> +               ( !EFI_ERROR ( TransferStatus )) &&
> +               ( TMP_LENG == 0)) {
> +      pNicDevice->bSetZeroLen = TRUE;
> +      LengthInBytes = 0;
> +      Status = EFI_NOT_READY;
> +      goto done;
> +    } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT == TransferStatus) {
> +      pNicDevice->bSetZeroLen = TRUE;
> +      LengthInBytes = 0;
> +      Status = EFI_NOT_READY;
> +      goto done;
> +    } else {
> +      pNicDevice->bSetZeroLen = TRUE;
> +      LengthInBytes = 0;
> +      Status = EFI_NOT_READY;
> +      goto done;
> +    }
> +  }
> +
> +done:
> +  if (LengthInBytes != 0) {
> +    UINT16 tmplen = 0;
> +    UINT16 tmpPktCnt = 0;
> +
> +    tmpPktCnt = *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes - 4));
> +    tmplen =  *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2));
> +
> +    if (((UINTN)(((tmpPktCnt * 4 + 4 + 7) & 0xfff8) + tmplen)) == LengthInBytes) {
> +      pNicDevice->PktCnt = tmpPktCnt;
> +      pNicDevice->pCurPktHdrOff = pNicDevice->pBulkInbuf + tmplen;
> +      pNicDevice->pCurPktOff = pNicDevice->pBulkInbuf;
> +      *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes - 4)) = 0;
> +      *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2)) = 0;
> +      Status = EFI_SUCCESS;
> +    } else {
> +      Status = EFI_NOT_READY;
> +    }
> +  } else {
> +    Status = EFI_NOT_READY;
> +  }
> +no_pkt:
> +   return Status;
> +}
> diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c
> new file mode 100644
> index 000000000000..bb7ea146be02
> --- /dev/null
> +++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentName.c
> @@ -0,0 +1,290 @@
> +/** @file
> +  UEFI Component Name(2) protocol implementation.
> +
> +  Copyright (c) 2011, Intel Corporation. All rights reserved.
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include "Ax88179.h"
> +
> +/**
> +  EFI Component Name Protocol declaration
> +**/
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gComponentName = {
> +  GetDriverName,
> +  GetControllerName,
> +  "eng"
> +};
> +
> +/**
> +  EFI Component Name 2 Protocol declaration
> +**/
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
> +  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) GetDriverName,
> +  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) GetControllerName,
> +  "en"
> +};
> +
> +
> +/**
> +  Driver name table declaration
> +**/
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> +mDriverNameTable[] = {
> +  {"eng;en", L"ASIX AX88179 Ethernet Driver 2.9.0"},
> +  {NULL,  NULL}
> +};
> +
> +/**
> +  Controller name table declaration
> +**/
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> +mControllerNameTable[] = {
> +  {"eng;en", L"AX88179 USB3.0 Gigabit Ethernet Controller"},
> +  {NULL,  NULL}
> +};
> +
> +/**
> +  Retrieves a Unicode string that is the user readable name of the driver.
> +
> +  This function retrieves the user readable name of a driver in the form of a
> +  Unicode string. If the driver specified by This has a user readable name in
> +  the language specified by Language, then a pointer to the driver name is
> +  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
> +  by This does not support the language specified by Language,
> +  then EFI_UNSUPPORTED is returned.
> +
> +  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
> +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> +                                array indicating the language. This is the
> +                                language of the driver name that the caller is
> +                                requesting, and it must match one of the
> +                                languages specified in SupportedLanguages. The
> +                                number of languages supported by a driver is up
> +                                to the driver writer. Language is specified
> +                                in RFC 3066 or ISO 639-2 language code format.
> +  @param [out] ppDriverName     A pointer to the Unicode string to return.
> +                                This Unicode string is the name of the
> +                                driver specified by This in the language
> +                                specified by Language.
> +
> +  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
> +                                This and the language specified by Language was
> +                                returned in DriverName.
> +  @retval EFI_INVALID_PARAMETER Language is NULL.
> +  @retval EFI_INVALID_PARAMETER DriverName is NULL.
> +  @retval EFI_UNSUPPORTED       The driver specified by This does not support
> +                                the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +GetDriverName (
> +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> +  IN  CHAR8 * pLanguage,
> +  OUT CHAR16 ** ppDriverName
> +  )
> +{
> +  EFI_STATUS Status;
> +
> +
> +  Status = LookupUnicodeString2 (
> +             pLanguage,
> +             pThis->SupportedLanguages,
> +             mDriverNameTable,
> +             ppDriverName,
> +             (BOOLEAN)(pThis == &gComponentName)
> +             );
> +
> +  return Status;
> +}
> +
> +/**
> +  Retrieves a Unicode string that is the user readable name of the controller
> +  that is being managed by a driver.
> +
> +  This function retrieves the user readable name of the controller specified by
> +  ControllerHandle and ChildHandle in the form of a Unicode string. If the
> +  driver specified by This has a user readable name in the language specified by
> +  Language, then a pointer to the controller name is returned in ControllerName,
> +  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
> +  managing the controller specified by ControllerHandle and ChildHandle,
> +  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
> +  support the language specified by Language, then EFI_UNSUPPORTED is returned.
> +
> +  @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
> +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> +  @param [in] ControllerHandle  The handle of a controller that the driver
> +                                specified by This is managing.  This handle
> +                                specifies the controller whose name is to be
> +                                returned.
> +  @param [in] ChildHandle       The handle of the child controller to retrieve
> +                                the name of.  This is an optional parameter that
> +                                may be NULL.  It will be NULL for device
> +                                drivers.  It will also be NULL for a bus drivers
> +                                that wish to retrieve the name of the bus
> +                                controller.  It will not be NULL for a bus
> +                                driver that wishes to retrieve the name of a
> +                                child controller.
> +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> +                                array indicating the language.  This is the
> +                                language of the driver name that the caller is
> +                                requesting, and it must match one of the
> +                                languages specified in SupportedLanguages. The
> +                                number of languages supported by a driver is up
> +                                to the driver writer. Language is specified in
> +                                RFC 3066 or ISO 639-2 language code format.
> +  @param [out] ppControllerName A pointer to the Unicode string to return.
> +                                This Unicode string is the name of the
> +                                controller specified by ControllerHandle and
> +                                ChildHandle in the language specified by
> +                                Language from the point of view of the driver
> +                                specified by This.
> +
> +  @retval EFI_SUCCESS           The Unicode string for the user readable name in
> +                                the language specified by Language for the
> +                                driver specified by This was returned in
> +                                DriverName.
> +  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
> +  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
> +                                EFI_HANDLE.
> +  @retval EFI_INVALID_PARAMETER Language is NULL.
> +  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> +  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
> +                                managing the controller specified by
> +                                ControllerHandle and ChildHandle.
> +  @retval EFI_UNSUPPORTED       The driver specified by This does not support
> +                                the language specified by Language.
> +
> +**/
> +
> +
> +
> +#if PASS_SCT
> +EFI_STATUS
> +EFIAPI
> +GetControllerName (
> +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> +  IN  EFI_HANDLE ControllerHandle,
> +  IN OPTIONAL EFI_HANDLE ChildHandle,
> +  IN  CHAR8 * pLanguage,
> +  OUT CHAR16 ** ppControllerName
> +  )
> +{
> +
> +  EFI_STATUS                  Status;
> +  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
> +
> +  //
> +  // This is a device driver, so ChildHandle must be NULL.
> +  //
> +  if (ChildHandle != NULL) {
> +    return EFI_UNSUPPORTED;
> +  }
> +
> +  //
> +  // Check Controller's handle
> +  //
> +  Status = gBS->OpenProtocol (
> +                  ControllerHandle,
> +                  &gEfiUsbIoProtocolGuid,
> +                  (VOID **) &UsbIoProtocol,
> +                  gDriverBinding.DriverBindingHandle,
> +                  ControllerHandle,
> +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> +                  );
> +  if (!EFI_ERROR (Status)) {
> +    gBS->CloseProtocol (
> +           ControllerHandle,
> +           &gEfiUsbIoProtocolGuid,
> +           gDriverBinding.DriverBindingHandle,
> +           ControllerHandle
> +           );
> +    return EFI_UNSUPPORTED;
> +  }
> +
> +  if (Status != EFI_ALREADY_STARTED) {
> +    return EFI_UNSUPPORTED;
> +  }
> +
> +  Status =  LookupUnicodeString2 (
> +           pLanguage,
> +            pThis->SupportedLanguages,
> +           mControllerNameTable,
> +           ppControllerName,
> +           (BOOLEAN)(pThis == &gComponentName)
> +           );
> +
> +  return  Status;
> +}
> +#else
> +
> +EFI_STATUS
> +EFIAPI
> +GetControllerName (
> +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> +  IN  EFI_HANDLE ControllerHandle,
> +  IN OPTIONAL EFI_HANDLE ChildHandle,
> +  IN  CHAR8 * pLanguage,
> +  OUT CHAR16 ** ppControllerName
> +  )
> +{
> +  EFI_STATUS Status;
> +  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
> +  EFI_USB_DEVICE_DESCRIPTOR Device;
> +
> +  //
> +  //  Connect to the USB stack
> +  //
> +  Status = gBS->OpenProtocol (
> +                  ControllerHandle,
> +                  &gEfiUsbIoProtocolGuid,
> +                  (VOID **) &UsbIoProtocol,
> +                  gDriverBinding.DriverBindingHandle,
> +                  ControllerHandle,
> +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> +                  );
> +
> +
> +  if (!EFI_ERROR ( Status )) {
> +      Status = UsbIoProtocol->UsbGetDeviceDescriptor ( UsbIoProtocol, &Device );
> +      if (EFI_ERROR(Status)) {
> +        Status = EFI_UNSUPPORTED;
> +      } else {
> +          //
> +          //  Validate the adapter
> +          //
> +          if (( VENDOR_ID == Device.IdVendor )
> +            && ( PRODUCT_ID == Device.IdProduct )) {
> +            *ppControllerName = L"AX88179 USB3.0 Gigabit Ethernet Controller";
> +            Status = EFI_SUCCESS;
> +          } else if (( VENDOR_ID == Device.IdVendor )
> +            && ( PRODUCT_ID_178A == Device.IdProduct )) {
> +            *ppControllerName = L"AX88178A USB2.0 Gigabit Ethernet Controller";
> +            Status = EFI_SUCCESS;
> +          } else {
> +            Status = EFI_UNSUPPORTED;
> +          }
> +
> +      }
> +
> +      gBS->CloseProtocol (
> +               ControllerHandle,
> +               &gEfiUsbIoProtocolGuid,
> +               gDriverBinding.DriverBindingHandle,
> +               ControllerHandle
> +               );
> +  }
> +  //
> +  // Return the operation status
> +  //
> +  if (Status != EFI_SUCCESS) {
> +    *ppControllerName = L"AX88179_178A Gigabit Ethernet Controller";
> +        Status = EFI_SUCCESS;
> +  }
> +  return Status;
> +}
> +
> +#endif
> diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> new file mode 100644
> index 000000000000..826a539e3f34
> --- /dev/null
> +++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> @@ -0,0 +1,620 @@
> +/** @file
> +  Implement the driver binding protocol for Asix AX88179 Ethernet driver.
> +
> +  Copyright (c) 2011, Intel Corporation
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include "Ax88179.h"
> +
> +/**
> +  Verify the controller type
> +
> +  @param [in] pThis                Protocol instance pointer.
> +  @param [in] Controller           Handle of device to test.
> +  @param [in] pRemainingDevicePath Not used.
> +
> +  @retval EFI_SUCCESS          This driver supports this device.
> +  @retval other                This driver does not support this device.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +DriverSupported (
> +  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
> +  IN EFI_HANDLE Controller,
> +  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
> +  )
> +{
> +  EFI_USB_DEVICE_DESCRIPTOR Device;
> +  EFI_USB_IO_PROTOCOL * pUsbIo;
> +  EFI_STATUS Status;
> +
> +  //
> +  //  Connect to the USB stack
> +  //
> +  Status = gBS->OpenProtocol (
> +                  Controller,
> +                  &gEfiUsbIoProtocolGuid,
> +                  (VOID **) &pUsbIo,
> +                  pThis->DriverBindingHandle,
> +                  Controller,
> +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> +                  );
> +  if (!EFI_ERROR ( Status )) {
> +
> +    //
> +    //  Get the interface descriptor to check the USB class and find a transport
> +    //  protocol handler.
> +    //
> +    Status = pUsbIo->UsbGetDeviceDescriptor ( pUsbIo, &Device );
> +    if (EFI_ERROR(Status)) {
> +      Status = EFI_UNSUPPORTED;
> +    } else {
> +      //
> +      //  Validate the adapter
> +      //
> +      if (( VENDOR_ID == Device.IdVendor ) &&
> +          ( PRODUCT_ID == Device.IdProduct )) {
> +        Status = EFI_SUCCESS;
> +      } else if (( VENDOR_ID == Device.IdVendor ) &&
> +                 ( PRODUCT_ID_178A == Device.IdProduct )) {
> +        Status = EFI_SUCCESS;
> +      } else {
> +        Status = EFI_UNSUPPORTED;
> +      }
> +    }
> +    gBS->CloseProtocol (
> +           Controller,
> +           &gEfiUsbIoProtocolGuid,
> +           pThis->DriverBindingHandle,
> +           Controller
> +           );
> +  }
> +
> +  //
> +  //  Return the device supported status
> +  //
> +
> +  return Status;
> +}
> +
> +
> +/**
> +  Start this driver on Controller by opening UsbIo and DevicePath protocols.
> +  Initialize PXE structures, create a copy of the Controller Device Path with the
> +  NIC's MAC address appended to it, install the NetworkInterfaceIdentifier protocol
> +  on the newly created Device Path.
> +
> +  @param [in] pThis                Protocol instance pointer.
> +  @param [in] Controller           Handle of device to work with.
> +  @param [in] pRemainingDevicePath Not used, always produce all possible children.
> +
> +  @retval EFI_SUCCESS          This driver is added to Controller.
> +  @retval other                This driver does not support this device.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +DriverStart (
> +  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
> +  IN EFI_HANDLE Controller,
> +  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
> +  )
> +{
> +  EFI_STATUS Status;
> +  NIC_DEVICE *pNicDevice;
> +  UINTN LengthInBytes;
> +  EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath = NULL;
> +  MAC_ADDR_DEVICE_PATH MacDeviceNode;
> +
> +  //
> +  //  Allocate the device structure
> +  //
> +  LengthInBytes = sizeof ( *pNicDevice );
> +  Status = gBS->AllocatePool (
> +                  EfiRuntimeServicesData,
> +                  LengthInBytes,
> +                  (VOID **) &pNicDevice
> +                  );
> +
> +  if (EFI_ERROR (Status)) {
> +    goto ERR;
> +  }
> +
> +  //
> +  //  Set the structure signature
> +  //
> +  ZeroMem ( pNicDevice, LengthInBytes );
> +  pNicDevice->Signature = DEV_SIGNATURE;
> +
> +  Status = gBS->OpenProtocol (
> +                    Controller,
> +                    &gEfiUsbIoProtocolGuid,
> +                    (VOID **) &pNicDevice->pUsbIo,
> +                    pThis->DriverBindingHandle,
> +                    Controller,
> +                    EFI_OPEN_PROTOCOL_BY_DRIVER
> +                    );
> +
> +  if (EFI_ERROR (Status)) {
> +    goto ERR;
> +  }
> +
> +  //
> +  //  Initialize the simple network protocol
> +  //
> +  Status = SN_Setup ( pNicDevice );
> +
> +  if (EFI_ERROR(Status)){
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiUsbIoProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              Controller
> +              );
> +    goto ERR;
> +  }
> +  //
> +  // Set Device Path
> +  //
> +  Status = gBS->OpenProtocol (
> +                  Controller,
> +                  &gEfiDevicePathProtocolGuid,
> +                  (VOID **) &ParentDevicePath,
> +                  pThis->DriverBindingHandle,
> +                  Controller,
> +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> +                  );
> +  if (EFI_ERROR(Status)) {
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiUsbIoProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              Controller
> +              );
> +    goto ERR;
> +  }
> +
> +  ZeroMem (&MacDeviceNode, sizeof (MAC_ADDR_DEVICE_PATH));
> +  MacDeviceNode.Header.Type = MESSAGING_DEVICE_PATH;
> +  MacDeviceNode.Header.SubType = MSG_MAC_ADDR_DP;
> +
> +  SetDevicePathNodeLength (&MacDeviceNode.Header, sizeof (MAC_ADDR_DEVICE_PATH));
> +
> +  CopyMem (&MacDeviceNode.MacAddress,
> +           &pNicDevice->SimpleNetworkData.CurrentAddress,
> +           PXE_HWADDR_LEN_ETHER);
> +
> +  MacDeviceNode.IfType = pNicDevice->SimpleNetworkData.IfType;
> +
> +  pNicDevice->MyDevPath = AppendDevicePathNode (
> +                                          ParentDevicePath,
> +                                          (EFI_DEVICE_PATH_PROTOCOL *) &MacDeviceNode
> +                                          );
> +  pNicDevice->Controller = NULL;
> +
> +  //
> +  //  Install both the simple network and device path protocols.
> +  //
> +  Status = gBS->InstallMultipleProtocolInterfaces (
> +                          &pNicDevice->Controller,
> +                          &gEfiCallerIdGuid,
> +                          pNicDevice,
> +                          &gEfiSimpleNetworkProtocolGuid,
> +                          &pNicDevice->SimpleNetwork,
> +                          &gEfiDevicePathProtocolGuid,
> +                          pNicDevice->MyDevPath,
> +                          NULL
> +                          );
> +
> +  if (EFI_ERROR(Status)){
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiDevicePathProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              Controller);
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiUsbIoProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              Controller
> +              );
> +    goto ERR;
> +  }
> +
> +  //
> +  // Open For Child Device
> +  //
> +  Status = gBS->OpenProtocol (
> +                  Controller,
> +                  &gEfiUsbIoProtocolGuid,
> +                  (VOID **) &pNicDevice->pUsbIo,
> +                  pThis->DriverBindingHandle,
> +                  pNicDevice->Controller,
> +                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> +                  );
> +
> +  if (EFI_ERROR(Status)){
> +    gBS->UninstallMultipleProtocolInterfaces (
> +                          &pNicDevice->Controller,
> +                          &gEfiCallerIdGuid,
> +                          pNicDevice,
> +                          &gEfiSimpleNetworkProtocolGuid,
> +                          &pNicDevice->SimpleNetwork,
> +                          &gEfiDevicePathProtocolGuid,
> +                          pNicDevice->MyDevPath,
> +                          NULL
> +                          );
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiDevicePathProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              Controller);
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiUsbIoProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              Controller
> +              );
> +    goto ERR;
> +  }
> +
> +  return Status;
> +
> +
> +ERR:
> +
> +  if ( NULL != pNicDevice->pBulkInbuf)
> +    gBS->FreePool (pNicDevice->pBulkInbuf);
> +  if ( NULL != pNicDevice->pTxTest)
> +    gBS->FreePool (pNicDevice->pTxTest);
> +  if ( NULL != pNicDevice->MyDevPath)
> +    gBS->FreePool (pNicDevice->MyDevPath);
> +  if (NULL != pNicDevice)
> +    gBS->FreePool ( pNicDevice );
> +  return Status;
> +
> +}
> +
> +/**
> +  Stop this driver on Controller by removing NetworkInterfaceIdentifier protocol and
> +  closing the DevicePath and PciIo protocols on Controller.
> +
> +  @param [in] pThis                Protocol instance pointer.
> +  @param [in] Controller           Handle of device to stop driver on.
> +  @param [in] NumberOfChildren     How many children need to be stopped.
> +  @param [in] pChildHandleBuffer   Not used.
> +
> +  @retval EFI_SUCCESS          This driver is removed Controller.
> +  @retval EFI_DEVICE_ERROR     The device could not be stopped due to a device error.
> +  @retval other                This driver was not removed from this device.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +DriverStop (
> +  IN  EFI_DRIVER_BINDING_PROTOCOL * pThis,
> +  IN  EFI_HANDLE Controller,
> +  IN  UINTN NumberOfChildren,
> +  IN  EFI_HANDLE * ChildHandleBuffer
> +  )
> +{
> +  BOOLEAN AllChildrenStopped;
> +  EFI_SIMPLE_NETWORK_PROTOCOL *SimpleNetwork;
> +  EFI_STATUS Status = EFI_SUCCESS;
> +  NIC_DEVICE *pNicDevice;
> +  UINTN Index;
> +
> +  //
> +  // Complete all outstanding transactions to Controller.
> +  // Don't allow any new transaction to Controller to be started.
> +  //
> +  if (NumberOfChildren == 0) {
> +    Status = gBS->OpenProtocol (
> +                      Controller,
> +                      &gEfiSimpleNetworkProtocolGuid,
> +                      (VOID **) &SimpleNetwork,
> +                      pThis->DriverBindingHandle,
> +                      Controller,
> +                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
> +                      );
> +
> +    if (EFI_ERROR(Status)) {
> +      //
> +      // This is a 2nd type handle(multi-lun root), it needs to close devicepath
> +      // and usbio protocol.
> +      //
> +      gBS->CloseProtocol (
> +                Controller,
> +                &gEfiDevicePathProtocolGuid,
> +                pThis->DriverBindingHandle,
> +                Controller
> +                );
> +      gBS->CloseProtocol (
> +                Controller,
> +                &gEfiUsbIoProtocolGuid,
> +                pThis->DriverBindingHandle,
> +                Controller
> +                );
> +      return EFI_SUCCESS;
> +    }
> +
> +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
> +
> +    Status = gBS->UninstallMultipleProtocolInterfaces (
> +                          Controller,
> +                          &gEfiCallerIdGuid,
> +                          pNicDevice,
> +                          &gEfiSimpleNetworkProtocolGuid,
> +                          &pNicDevice->SimpleNetwork,
> +                          &gEfiDevicePathProtocolGuid,
> +                          pNicDevice->MyDevPath,
> +                          NULL
> +                          );
> +
> +    if (EFI_ERROR (Status)) {
> +      return Status;
> +    }
> +    //
> +    // Close the bus driver
> +    //
> +    Status = gBS->CloseProtocol (
> +                        Controller,
> +                        &gEfiDevicePathProtocolGuid,
> +                        pThis->DriverBindingHandle,
> +                        Controller
> +                        );
> +
> +    Status = gBS->CloseProtocol (
> +                        Controller,
> +                        &gEfiUsbIoProtocolGuid,
> +                        pThis->DriverBindingHandle,
> +                        Controller
> +                        );
> +    return EFI_SUCCESS;
> +  }
> +
> +  AllChildrenStopped = TRUE;
> +
> +  for (Index = 0; Index < NumberOfChildren; Index++) {
> +    Status = gBS->OpenProtocol (
> +                      ChildHandleBuffer[Index],
> +                      &gEfiSimpleNetworkProtocolGuid,
> +                      (VOID **) &SimpleNetwork,
> +                      pThis->DriverBindingHandle,
> +                      Controller,
> +                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
> +                      );
> +
> +    if (EFI_ERROR (Status)) {
> +      AllChildrenStopped = FALSE;
> +      continue;
> +    }
> +
> +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
> +
> +    gBS->CloseProtocol (
> +              Controller,
> +              &gEfiUsbIoProtocolGuid,
> +              pThis->DriverBindingHandle,
> +              ChildHandleBuffer[Index]
> +              );
> +
> +    Status = gBS->UninstallMultipleProtocolInterfaces (
> +                          ChildHandleBuffer[Index],
> +                          &gEfiCallerIdGuid,
> +                          pNicDevice,
> +                          &gEfiSimpleNetworkProtocolGuid,
> +                          &pNicDevice->SimpleNetwork,
> +                          &gEfiDevicePathProtocolGuid,
> +                          pNicDevice->MyDevPath,
> +                          NULL
> +                          );
> +
> +    if (EFI_ERROR (Status)) {
> +      Status = gBS->OpenProtocol (
> +                        Controller,
> +                        &gEfiUsbIoProtocolGuid,
> +                        (VOID **) &pNicDevice->pUsbIo,
> +                        pThis->DriverBindingHandle,
> +                        ChildHandleBuffer[Index],
> +                        EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> +                        );
> +    } else {
> +      if ( NULL != pNicDevice->pBulkInbuf)
> +        gBS->FreePool (pNicDevice->pBulkInbuf);
> +      if ( NULL != pNicDevice->pTxTest)
> +        gBS->FreePool (pNicDevice->pTxTest);
> +      if ( NULL != pNicDevice->MyDevPath)
> +        gBS->FreePool (pNicDevice->MyDevPath);
> +      if ( NULL != pNicDevice)
> +        gBS->FreePool (pNicDevice);
> +    }
> +  }
> +
> +  if (!AllChildrenStopped) {
> +    return EFI_DEVICE_ERROR;
> +  }
> +
> +  return EFI_SUCCESS;
> +}
> +
> +
> +/**
> +  Driver binding protocol declaration
> +**/
> +EFI_DRIVER_BINDING_PROTOCOL  gDriverBinding = {
> +  DriverSupported,
> +  DriverStart,
> +  DriverStop,
> +  0xa,
> +  NULL,
> +  NULL
> +};
> +
> +
> +/**
> +  Ax88179 driver unload routine.
> +
> +  @param [in] ImageHandle       Handle for the image.
> +
> +  @retval EFI_SUCCESS           Image may be unloaded
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +DriverUnload (
> +  IN EFI_HANDLE ImageHandle
> +  )
> +{
> +  UINTN BufferSize;
> +  UINTN Index;
> +  UINTN Max;
> +  EFI_HANDLE * pHandle;
> +  EFI_STATUS Status;
> +
> +  //
> +  //  Determine which devices are using this driver
> +  //
> +  BufferSize = 0;
> +  pHandle = NULL;
> +  Status = gBS->LocateHandle (
> +                  ByProtocol,
> +                  &gEfiCallerIdGuid,
> +                  NULL,
> +                  &BufferSize,
> +                  NULL );
> +  if ( EFI_BUFFER_TOO_SMALL == Status ) {
> +    for ( ; ; ) {
> +      //
> +      //  One or more block IO devices are present
> +      //
> +      Status = gBS->AllocatePool (
> +                      EfiRuntimeServicesData,
> +                      BufferSize,
> +                      (VOID **) &pHandle
> +                      );
> +      if ( EFI_ERROR ( Status )) {
> +        break;
> +      }
> +
> +      //
> +      //  Locate the block IO devices
> +      //
> +      Status = gBS->LocateHandle (
> +                      ByProtocol,
> +                      &gEfiCallerIdGuid,
> +                      NULL,
> +                      &BufferSize,
> +                      pHandle );
> +      if ( EFI_ERROR ( Status )) {
> +        //
> +        //  Error getting handles
> +        //
> +
> +        break;
> +      }
> +
> +      //
> +      //  Remove any use of the driver
> +      //
> +      Max = BufferSize / sizeof ( pHandle[ 0 ]);
> +      for ( Index = 0; Max > Index; Index++ ) {
> +        Status = DriverStop ( &gDriverBinding,
> +                              pHandle[ Index ],
> +                              0,
> +                              NULL );
> +        if ( EFI_ERROR ( Status )) {
> +          break;
> +        }
> +      }
> +      break;
> +    }
> +  } else {
> +    if ( EFI_NOT_FOUND == Status ) {
> +      //
> +      //  No devices were found
> +      //
> +      Status = EFI_SUCCESS;
> +    }
> +  }
> +
> +  //
> +  //  Free the handle array
> +  //
> +  if ( NULL != pHandle ) {
> +    gBS->FreePool ( pHandle );
> +  }
> +
> +  //
> +  //  Remove the protocols installed by the EntryPoint routine.
> +  //
> +  if ( !EFI_ERROR ( Status )) {
> +    gBS->UninstallMultipleProtocolInterfaces (
> +            ImageHandle,
> +            &gEfiDriverBindingProtocolGuid,
> +            &gDriverBinding,
> +            &gEfiComponentNameProtocolGuid,
> +            &gComponentName,
> +            &gEfiComponentName2ProtocolGuid,
> +            &gComponentName2,
> +            NULL
> +            );
> +  }
> +
> +  //
> +  //  Return the unload status
> +  //
> +
> +  return Status;
> +}
> +
> +
> +/**
> +Ax88179 driver entry point.
> +
> +@param [in] ImageHandle       Handle for the image.
> +@param [in] pSystemTable      Address of the system table.
> +
> +@retval EFI_SUCCESS           Image successfully loaded.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +EntryPoint (
> +  IN EFI_HANDLE ImageHandle,
> +  IN EFI_SYSTEM_TABLE * pSystemTable
> +  )
> +{
> +  EFI_LOADED_IMAGE_PROTOCOL * pLoadedImage;
> +  EFI_STATUS    Status;
> +
> +
> +  //
> +  //  Enable unload support
> +  //
> +  Status = gBS->HandleProtocol (
> +                  gImageHandle,
> +                  &gEfiLoadedImageProtocolGuid,
> +                  (VOID **)&pLoadedImage
> +                  );
> +  if (!EFI_ERROR (Status)) {
> +    pLoadedImage->Unload = DriverUnload;
> +  }
> +
> +  //
> +  //  Add the driver to the list of drivers
> +  //
> +  Status = EfiLibInstallDriverBindingComponentName2 (
> +             ImageHandle,
> +             pSystemTable,
> +             &gDriverBinding,
> +             ImageHandle,
> +             &gComponentName,
> +             &gComponentName2
> +             );
> +
> +  return Status;
> +}
> diff --git a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
> new file mode 100644
> index 000000000000..25986451dcbc
> --- /dev/null
> +++ b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
> @@ -0,0 +1,1585 @@
> +/** @file
> +  Provides the Simple Network functions.
> +
> +  Copyright (c) 2011, Intel Corporation
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include "Ax88179.h"
> +
> +/**
> +  This function updates the filtering on the receiver.
> +
> +  This support routine calls ::Ax88179MacAddressSet to update
> +  the MAC address.  This routine then rebuilds the multicast
> +  hash by calling ::Ax88179MulticastClear and ::Ax88179MulticastSet.
> +  Finally this routine enables the receiver by calling
> +  ::Ax88179RxControl.
> +  @param [in] pSimpleNetwork    Simple network mode pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +ReceiveFilterUpdate (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  NIC_DEVICE * pNicDevice;
> +  EFI_STATUS Status;
> +  UINT32 Index;
> +
> +  //
> +  // Set the MAC address
> +  //
> +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +  pMode = pSimpleNetwork->Mode;
> +  //
> +  // Clear the multicast hash table
> +  //
> +  Ax88179MulticastClear ( pNicDevice );
> +
> +  //
> +  // Load the multicast hash table
> +  //
> +  if ( 0 != ( pMode->ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
> +    for ( Index = 0; Index < pMode->MCastFilterCount; Index++ ) {
> +      //
> +      // Enable the next multicast address
> +      //
> +      Ax88179MulticastSet ( pNicDevice,
> +                            &pMode->MCastFilter[ Index ].Addr[0]);
> +    }
> +  }
> +
> +  //
> +  // Enable the receiver
> +  //
> +  Status = Ax88179RxControl ( pNicDevice, pMode->ReceiveFilterSetting );
> +
> +  return Status;
> +}
> +
> +
> +/**
> +  This function updates the SNP driver status.
> +
> +  This function gets the current interrupt and recycled transmit
> +  buffer status from the network interface.  The interrupt status
> +  and the media status are returned as a bit mask in InterruptStatus.
> +  If InterruptStatus is NULL, the interrupt status will not be read.
> +  Upon successful return of the media status, the MediaPresent field
> +  of EFI_SIMPLE_NETWORK_MODE will be updated to reflect any change
> +  of media status.  If TxBuf is not NULL, a recycled transmit buffer
> +  address will be retrived.  If a recycled transmit buffer address
> +  is returned in TxBuf, then the buffer has been successfully
> +  transmitted, and the status for that buffer is cleared.
> +
> +  This function calls ::Ax88179Rx to update the media status and
> +  queue any receive packets.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] pInterruptStatus  A pointer to the bit mask of the current active interrupts.
> +                                If this is NULL, the interrupt status will not be read from
> +                                the device.  If this is not NULL, the interrupt status will
> +                                be read from teh device.  When the interrupt status is read,
> +                                it will also be cleared.  Clearing the transmit interrupt
> +                                does not empty the recycled transmit buffer array.
> +  @param [out] ppTxBuf          Recycled transmit buffer address.  The network interface will
> +                                not transmit if its internal recycled transmit buffer array is
> +                                full.  Reading the transmit buffer does not clear the transmit
> +                                interrupt.  If this is NULL, then the transmit buffer status
> +                                will not be read.  If there are not transmit buffers to recycle
> +                                and TxBuf is not NULL, *TxBuf will be set to NULL.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +
> +**/
> +
> +EFI_STATUS
> +EFIAPI
> +SN_GetStatus (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  OUT UINT32 * pInterruptStatus,
> +  OUT VOID ** ppTxBuf
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  NIC_DEVICE * pNicDevice;
> +  EFI_STATUS Status = EFI_SUCCESS;
> +  EFI_TPL TplPrevious;
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // Return the transmit buffer
> +    //
> +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +
> +    if (( NULL != ppTxBuf ) && ( NULL != pNicDevice->pTxBuffer )) {
> +      *ppTxBuf = pNicDevice->pTxBuffer;
> +      pNicDevice->pTxBuffer = NULL;
> +    }
> +
> +    pMode = pSimpleNetwork->Mode;
> +    if (EfiSimpleNetworkInitialized == pMode->State) {
> +      if (NULL == ppTxBuf && NULL == pInterruptStatus) {
> +        Status = EFI_INVALID_PARAMETER;
> +        goto EXIT;
> +      }
> +#if REPORTLINK
> +#else
> +      if (!pNicDevice->bLinkUp || !pNicDevice->bComplete) {
> +#endif
> +        Status = Ax88179NegotiateLinkComplete ( pNicDevice,
> +                                                &pNicDevice->PollCount,
> +                                                &pNicDevice->bComplete,
> +                                                &pNicDevice->bLinkUp,
> +                                                &pNicDevice->b100Mbps,
> +                                                &pNicDevice->b1000Mbps,
> +                                                &pNicDevice->bFullDuplex );
> +
> +        if (EFI_ERROR(Status))
> +          goto EXIT;
> +#if REPORTLINK
> +        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
> +          pMode->MediaPresent = TRUE;
> +          Status = Ax88179SetMedium (pNicDevice);
> +        } else {
> +          pMode->MediaPresent = FALSE;
> +        }
> +#else
> +        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
> +          pMode->MediaPresent = TRUE;
> +          pMode->MediaPresentSupported = FALSE;
> +          Status = Ax88179SetMedium (pNicDevice);
> +
> +        }
> +      }
> +#endif
> +    } else {
> +      if (EfiSimpleNetworkStarted == pMode->State) {
> +        Status = EFI_DEVICE_ERROR; ;
> +      } else {
> +        Status = EFI_NOT_STARTED ;
> +      }
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +  if ( NULL != pInterruptStatus ) {
> +    *pInterruptStatus = 0;
> +  }
> +
> +EXIT:
> +  gBS->RestoreTPL(TplPrevious) ;
> +
> +  return Status;
> +}
> +
> +/**
> +  This function performs read and write operations on the NVRAM device
> +  attached to a network interface.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] ReadWrite         TRUE for read operations, FALSE for write operations.
> +  @param [in] Offset            Byte offset in the NVRAM device at which to start the
> +                                read or write operation.  This must be a multiple of
> +                                NvRamAccessSize and less than NvRamSize.
> +  @param [in] BufferSize        The number of bytes to read or write from the NVRAM device.
> +                                This must also be a multiple of NvramAccessSize.
> +  @param [in, out] pBuffer      A pointer to the data buffer.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_NvData (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN ReadWrite,
> +  IN UINTN Offset,
> +  IN UINTN BufferSize,
> +  IN OUT VOID * pBuffer
> +  )
> +{
> +  EFI_STATUS Status = EFI_INVALID_PARAMETER;
> +  EFI_TPL TplPrevious;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  NIC_DEVICE * pNicDevice;
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +  if (( NULL == pSimpleNetwork ) || ( NULL == pSimpleNetwork->Mode )) {
> +    Status = EFI_INVALID_PARAMETER;
> +    goto  EXIT;
> +  }
> +
> +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +  pMode = pSimpleNetwork->Mode;
> +
> +#if PASS_SCT
> +  if (EfiSimpleNetworkInitialized != pMode->State) {
> +    Status = EFI_NOT_STARTED;
> +    goto  EXIT;
> +  }
> +#endif
> +
> +  if ( 0 != Offset ) {
> +    if ((0 != (Offset % pMode->NvRamAccessSize) ) || (Offset >= pMode->NvRamSize)) {
> +      Status = EFI_INVALID_PARAMETER;
> +      goto  EXIT;
> +    }
> +  }
> +  //
> +  //Offset must be a multiple of NvRamAccessSize and less than NvRamSize.
> +  //
> +  if (0 != (BufferSize % pMode->NvRamAccessSize)) {
> +    Status = EFI_INVALID_PARAMETER;
> +    goto  EXIT;
> +  }
> +
> +  if (BufferSize + Offset > pMode->NvRamSize) {
> +    Status = EFI_INVALID_PARAMETER;
> +    goto  EXIT;
> +  }
> +
> +  if (NULL == pBuffer) {
> +    Status = EFI_INVALID_PARAMETER;
> +    goto  EXIT;
> +  }
> +
> +  //
> +  //ReadWrite: TRUE FOR READ FALSE FOR WRITE
> +  //
> +  if (ReadWrite){
> +    UINTN i;
> +
> +    for (i = 0; i < BufferSize / 2 ; i++) {
> +      Status = Ax88179SromRead ( pNicDevice,
> +                                 (UINT32)(Offset/2 + i),
> +                                 (((UINT16*)pBuffer) + i));
> +    }
> +  } else {
> +    UINTN i;
> +
> +    Status = Ax88179EnableSromWrite(pNicDevice);
> +    if (EFI_ERROR(Status)) goto EXIT;
> +
> +    for (i = 0; i < BufferSize / 2 ; i++){
> +      Status = Ax88179SromWrite ( pNicDevice,
> +                                  (UINT32)(Offset/2 + i),
> +                                  (((UINT16*)pBuffer) + i));
> +    }
> +    Status = Ax88179DisableSromWrite(pNicDevice);
> +
> +    if (BufferSize == 272)
> +      Status = Ax88179ReloadSrom(pNicDevice);
> +  }
> +
> +  //
> +  // Return the operation status
> +  //
> +EXIT:
> +  gBS->RestoreTPL (TplPrevious);
> +  return Status;
> +}
> +
> +/**
> +  Resets the network adapter and allocates the transmit and receive buffers
> +  required by the network interface; optionally, also requests allocation of
> +  additional transmit and receive buffers.  This routine must be called before
> +  any other routine in the Simple Network protocol is called.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] ExtraRxBufferSize Size in bytes to add to the receive buffer allocation
> +  @param [in] ExtraTxBufferSize Size in bytes to add to the transmit buffer allocation
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_OUT_OF_RESOURCES  There was not enough memory for the transmit and receive buffers
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Initialize (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN UINTN ExtraRxBufferSize,
> +  IN UINTN ExtraTxBufferSize
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_STATUS Status;
> +  UINT32  TmpState;
> +  EFI_TPL TplPrevious;
> +  NIC_DEVICE * pNicDevice;
> +  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
> +
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // Determine if the interface is already started
> +    //
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkStarted == pMode->State ) {
> +      if (( 0 == ExtraRxBufferSize ) && ( 0 == ExtraTxBufferSize )) {
> +        //
> +        // Start the adapter
> +        //
> +        TmpState = pMode->State;
> +        pMode->State = EfiSimpleNetworkInitialized;
> +        Status = SN_Reset ( pSimpleNetwork, FALSE );
> +        if ( EFI_ERROR ( Status )) {
> +          //
> +          // Update the network state
> +          //
> +          pMode->State = TmpState;
> +        } else {
> +          pMode->MediaPresentSupported = TRUE;
> +          pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +          pMode->MediaPresent = Ax88179GetLinkStatus (pNicDevice);
> +        }
> +      } else {
> +        Status = EFI_UNSUPPORTED;
> +      }
> +    } else {
> +      Status = EFI_NOT_STARTED;
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +  //
> +  // Return the operation status
> +  //
> +  gBS->RestoreTPL (TplPrevious);
> +
> +  return Status;
> +}
> +
> +
> +/**
> +  This function converts a multicast IP address to a multicast HW MAC address
> +  for all packet transactions.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bIPv6             Set to TRUE if the multicast IP address is IPv6 [RFC2460].
> +                                Set to FALSE if the multicast IP address is IPv4 [RFC 791].
> +  @param [in] pIP               The multicast IP address that is to be converted to a
> +                                multicast HW MAC address.
> +  @param [in] pMAC              The multicast HW MAC address that is to be generated from IP.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_MCastIPtoMAC (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bIPv6,
> +  IN EFI_IP_ADDRESS * pIP,
> +  IN EFI_MAC_ADDRESS * pMAC
> +  )
> +{
> +  EFI_STATUS Status;
> +  EFI_TPL TplPrevious;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // The interface must be running
> +    //
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +      if (pIP == NULL || pMAC == NULL) {
> +        Status = EFI_INVALID_PARAMETER;
> +        goto EXIT;
> +      }
> +      if (bIPv6){
> +        Status = EFI_UNSUPPORTED;
> +        goto EXIT;
> +      } else {
> +        //
> +        // check if the ip given is a mcast IP
> +        //
> +        if ((pIP->v4.Addr[0] & 0xF0) != 0xE0) {
> +          Status = EFI_INVALID_PARAMETER;
> +          goto EXIT;
> +        } else {
> +          pMAC->Addr[0] = 0x01;
> +          pMAC->Addr[1] = 0x00;
> +          pMAC->Addr[2] = 0x5e;
> +          pMAC->Addr[3] = (UINT8) (pIP->v4.Addr[1] & 0x7f);
> +          pMAC->Addr[4] = (UINT8) pIP->v4.Addr[2];
> +          pMAC->Addr[5] = (UINT8) pIP->v4.Addr[3];
> +          Status = EFI_SUCCESS;
> +        }
> +      }
> +    } else {
> +      if (EfiSimpleNetworkStarted == pMode->State) {
> +        Status = EFI_DEVICE_ERROR; ;
> +      } else {
> +        Status = EFI_NOT_STARTED ;
> +      }
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +
> +EXIT:
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +/**
> +  Attempt to receive a packet from the network adapter.
> +
> +  This function retrieves one packet from the receive queue of the network
> +  interface.  If there are no packets on the receive queue, then EFI_NOT_READY
> +  will be returned.  If there is a packet on the receive queue, and the size
> +  of the packet is smaller than BufferSize, then the contents of the packet
> +  will be placed in Buffer, and BufferSize will be udpated with the actual
> +  size of the packet.  In addition, if SrcAddr, DestAddr, and Protocol are
> +  not NULL, then these values will be extracted from the media header and
> +  returned.  If BufferSize is smaller than the received packet, then the
> +  size of the receive packet will be placed in BufferSize and
> +  EFI_BUFFER_TOO_SMALL will be returned.
> +
> +  This routine calls ::Ax88179Rx to update the media status and
> +  empty the network adapter of receive packets.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [out] pHeaderSize      The size, in bytes, of the media header to be filled in by
> +                                the Transmit() function.  If HeaderSize is non-zero, then
> +                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
> +                                and DestAddr and Protocol parameters must not be NULL.
> +  @param [out] pBufferSize      The size, in bytes, of the entire packet (media header and
> +                                data) to be transmitted through the network interface.
> +  @param [out] pBuffer          A pointer to the packet (media header followed by data) to
> +                                to be transmitted.  This parameter can not be NULL.  If
> +                                HeaderSize is zero, then the media header is Buffer must
> +                                already be filled in by the caller.  If HeaderSize is nonzero,
> +                                then the media header will be filled in by the Transmit()
> +                                function.
> +  @param [out] pSrcAddr         The source HW MAC address.  If HeaderSize is zero, then
> +                                this parameter is ignored.  If HeaderSize is nonzero and
> +                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
> +                                is used for the source HW MAC address.
> +  @param [out] pDestAddr        The destination HW MAC address.  If HeaderSize is zero, then
> +                                this parameter is ignored.
> +  @param [out] pProtocol        The type of header to build.  If HeaderSize is zero, then
> +                                this parameter is ignored.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_NOT_READY         No packets have been received on the network interface.
> +  @retval EFI_BUFFER_TOO_SMALL  The packet is larger than BufferSize bytes.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Receive (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  OUT UINTN                      * pHeaderSize,
> +  OUT UINTN                      * pBufferSize,
> +  OUT VOID                       * pBuffer,
> +  OUT EFI_MAC_ADDRESS            * pSrcAddr,
> +  OUT EFI_MAC_ADDRESS            * pDestAddr,
> +  OUT UINT16                     * pProtocol
> +  )
> +{
> +  ETHERNET_HEADER * pHeader;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  NIC_DEVICE * pNicDevice;
> +  EFI_STATUS Status;
> +  UINT16 Type = 0;
> +  UINT16  CurrentPktLen;
> +  BOOLEAN bValid = TRUE;
> +  EFI_TPL TplPrevious;
> +  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // The interface must be running
> +    //
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +      if ((pBufferSize == NULL) || (pBuffer == NULL)) {
> +        Status = EFI_INVALID_PARAMETER;
> +        gBS->RestoreTPL (TplPrevious);
> +        return Status;
> +      }
> +      //
> +      // Update the link status
> +      //
> +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
> +        if ((NULL != pHeaderSize) && (7720 == *pHeaderSize)) {
> +          pNicDevice->Grub_f = TRUE;
> +        }
> +
> +        if ((pNicDevice->Grub_f) && (7720 != *pHeaderSize)) {
> +          gBS->RestoreTPL (TplPrevious);
> +          return EFI_NOT_READY;
> +        }
> +        //
> +        //  Attempt to do bulk in
> +        //
> +        if (0 == pNicDevice->PktCnt) {
> +          Status = Ax88179BulkIn(pNicDevice);
> +          if (EFI_ERROR(Status))
> +            goto  no_pkt;
> +        }
> +        CurrentPktLen = *((UINT16*) (pNicDevice->pCurPktHdrOff + 2));
> +        if (CurrentPktLen & (RXHDR_DROP | RXHDR_CRCERR))
> +          bValid = FALSE;
> +        CurrentPktLen &=  0x1fff;
> +        CurrentPktLen -= 2; /*EEEE*/
> +
> +        if (bValid && ( 60 <= CurrentPktLen ) &&
> +        ((CurrentPktLen - 14) <= MAX_ETHERNET_PKT_SIZE) &&
> +            (*((UINT16*)pNicDevice->pCurPktOff)) == 0xEEEE) {
> +          if (*pBufferSize < (UINTN)CurrentPktLen) {
> +            gBS->RestoreTPL (TplPrevious);
> +            return EFI_BUFFER_TOO_SMALL;
> +          }
> +          *pBufferSize = CurrentPktLen;
> +          CopyMem ( pBuffer, pNicDevice->pCurPktOff + 2, CurrentPktLen );
> +
> +          pHeader = (ETHERNET_HEADER *) pNicDevice->pCurPktOff + 2;
> +
> +          if ( NULL != pHeaderSize  && (7720 != *pHeaderSize)) {
> +            *pHeaderSize = sizeof ( *pHeader );
> +          }
> +
> +          if ( NULL != pDestAddr ) {
> +            CopyMem ( pDestAddr, &pHeader->dest_addr, PXE_HWADDR_LEN_ETHER );
> +          }
> +          if ( NULL != pSrcAddr ) {
> +            CopyMem ( pSrcAddr, &pHeader->src_addr, PXE_HWADDR_LEN_ETHER );
> +          }
> +          if ( NULL != pProtocol ) {
> +            Type = pHeader->type;
> +            Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
> +            *pProtocol = Type;
> +          }
> +          pNicDevice->PktCnt--;
> +          pNicDevice->pCurPktHdrOff += 4;
> +          pNicDevice->pCurPktOff += (CurrentPktLen + 2 + 7) & 0xfff8;
> +          Status = EFI_SUCCESS;
> +        } else {
> +          pNicDevice->PktCnt = 0;
> +          Status = EFI_NOT_READY;
> +        }
> +      } else {
> +        Status = EFI_NOT_READY;
> +      }
> +    } else {
> +      if (EfiSimpleNetworkStarted == pMode->State) {
> +        Status = EFI_DEVICE_ERROR;
> +      } else {
> +        Status = EFI_NOT_STARTED ;
> +      }
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +  //
> +  // Return the operation status
> +  //
> +no_pkt:
> +  gBS->RestoreTPL (TplPrevious);
> +  return Status;
> +}
> +
> +
> +/**
> +  This function is used to enable and disable the hardware and software receive
> +  filters for the underlying network device.
> +
> +  The receive filter change is broken down into three steps:
> +
> +    1.  The filter mask bits that are set (ON) in the Enable parameter
> +        are added to the current receive filter settings.
> +
> +    2.  The filter mask bits that are set (ON) in the Disable parameter
> +        are subtracted from the updated receive filter settins.
> +
> +    3.  If the resulting filter settigns is not supported by the hardware
> +        a more liberal setting is selected.
> +
> +  If the same bits are set in the Enable and Disable parameters, then the bits
> +  in the Disable parameter takes precedence.
> +
> +  If the ResetMCastFilter parameter is TRUE, then the multicast address list
> +  filter is disabled (irregardless of what other multicast bits are set in
> +  the enable and Disable parameters).  The SNP->Mode->MCastFilterCount field
> +  is set to zero.  The SNP->Mode->MCastFilter contents are undefined.
> +
> +  After enableing or disabling receive filter settings, software should
> +  verify the new settings by checking the SNP->Mode->ReceeiveFilterSettings,
> +  SNP->Mode->MCastFilterCount and SNP->Mode->MCastFilter fields.
> +
> +  Note: Some network drivers and/or devices will automatically promote
> +  receive filter settings if the requested setting can not be honored.
> +  For example, if a request for four multicast addresses is made and
> +  the underlying hardware only supports two multicast addresses the
> +  driver might set the promiscuous or promiscuous multicast receive filters
> +  instead.  The receiving software is responsible for discarding any extra
> +  packets that get through the hardware receive filters.
> +
> +  If ResetMCastFilter is TRUE, then the multicast receive filter list
> +  on the network interface will be reset to the default multicast receive
> +  filter list.  If ResetMCastFilter is FALSE, and this network interface
> +  allows the multicast receive filter list to be modified, then the
> +  MCastFilterCnt and MCastFilter are used to update the current multicast
> +  receive filter list.  The modified receive filter list settings can be
> +  found in the MCastFilter field of EFI_SIMPLE_NETWORK_MODE.
> +
> +  This routine calls ::ReceiveFilterUpdate to update the receive
> +  state in the network adapter.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] Enable            A bit mask of receive filters to enable on the network interface.
> +  @param [in] Disable           A bit mask of receive filters to disable on the network interface.
> +                                For backward compatibility with EFI 1.1 platforms, the
> +                                EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit must be set
> +                                when the ResetMCastFilter parameter is TRUE.
> +  @param [in] bResetMCastFilter Set to TRUE to reset the contents of the multicast receive
> +                                filters on the network interface to their default values.
> +  @param [in] MCastFilterCnt    Number of multicast HW MAC address in the new MCastFilter list.
> +                                This value must be less than or equal to the MaxMCastFilterCnt
> +                                field of EFI_SIMPLE_NETWORK_MODE.  This field is optional if
> +                                ResetMCastFilter is TRUE.
> +  @param [in] pMCastFilter      A pointer to a list of new multicast receive filter HW MAC
> +                                addresses.  This list will replace any existing multicast
> +                                HW MAC address list.  This field is optional if ResetMCastFilter
> +                                is TRUE.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_ReceiveFilters (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN UINT32 Enable,
> +  IN UINT32 Disable,
> +/*
> +#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
> +#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
> +#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
> +#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
> +#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
> +*/
> +  IN BOOLEAN bResetMCastFilter,
> +  IN UINTN MCastFilterCnt,
> +  IN EFI_MAC_ADDRESS * pMCastFilter
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_STATUS Status = EFI_SUCCESS;
> +  EFI_TPL TplPrevious;
> +  NIC_DEVICE * pNicDevice;
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +  pMode = pSimpleNetwork->Mode;
> +
> +  if (pSimpleNetwork == NULL) {
> +    gBS->RestoreTPL(TplPrevious);
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  switch (pMode->State) {
> +  case EfiSimpleNetworkInitialized:
> +    break;
> +  case EfiSimpleNetworkStopped:
> +    Status = EFI_NOT_STARTED;
> +    gBS->RestoreTPL(TplPrevious);
> +    return Status;
> +
> +  default:
> +    Status = EFI_DEVICE_ERROR;
> +    gBS->RestoreTPL(TplPrevious);
> +    return Status;
> +  }
> +
> +  //
> +  // check if we are asked to enable or disable something that the UNDI
> +  // does not even support!
> +  //
> +  if (((Enable &~pMode->ReceiveFilterMask) != 0) ||
> +      ((Disable &~pMode->ReceiveFilterMask) != 0)) {
> +    Status = EFI_INVALID_PARAMETER;
> +    gBS->RestoreTPL(TplPrevious);
> +    return Status;
> +  }
> +
> +  if (bResetMCastFilter) {
> +    Disable |= (EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST & pMode->ReceiveFilterMask);
> +    MCastFilterCnt = 0;
> +    pMode->MCastFilterCount = 0;
> +    if ( (0 == (pMode->ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST)) &&
> +   Enable == 0 && Disable == 2) {
> +      gBS->RestoreTPL(TplPrevious);
> +      return EFI_SUCCESS;
> +    }
> +  } else {
> +    if (MCastFilterCnt != 0) {
> +      UINTN i;
> +
> +      EFI_MAC_ADDRESS * pMulticastAddress;
> +      pMulticastAddress =  pMCastFilter;
> +
> +      if ((MCastFilterCnt > pMode->MaxMCastFilterCount) ||
> +          (pMCastFilter == NULL)) {
> +        Status = EFI_INVALID_PARAMETER;
> +        gBS->RestoreTPL(TplPrevious);
> +        return Status;
> +      }
> +
> +      for ( i = 0 ; i < MCastFilterCnt ; i++ ) {
> +          UINT8  tmp;
> +
> +          tmp = pMulticastAddress->Addr[0];
> +          if ( (tmp & 0x01) != 0x01 ) {
> +            gBS->RestoreTPL(TplPrevious);
> +            return EFI_INVALID_PARAMETER;
> +          }
> +          pMulticastAddress++;
> +      }
> +
> +      pMode->MCastFilterCount = (UINT32)MCastFilterCnt;
> +      CopyMem (&pMode->MCastFilter[0],
> +               pMCastFilter,
> +               MCastFilterCnt * sizeof ( EFI_MAC_ADDRESS/**pMCastFilter*/ ));
> +    }
> +  }
> +
> +  if (Enable == 0 && Disable == 0 && !bResetMCastFilter && MCastFilterCnt == 0) {
> +    Status = EFI_SUCCESS;
> +    gBS->RestoreTPL(TplPrevious);
> +    return Status;
> +  }
> +
> +  if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0 && MCastFilterCnt == 0) {
> +    Status = EFI_INVALID_PARAMETER;
> +    gBS->RestoreTPL(TplPrevious);
> +    return Status;
> +  }
> +
> +  pMode->ReceiveFilterSetting |= Enable;
> +  pMode->ReceiveFilterSetting &= ~Disable;
> +
> +  Status = ReceiveFilterUpdate (pSimpleNetwork);
> +
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +/**
> +  Reset the network adapter.
> +
> +  Resets a network adapter and reinitializes it with the parameters that
> +  were provided in the previous call to Initialize ().  The transmit and
> +  receive queues are cleared.  Receive filters, the station address, the
> +  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
> +  this call.
> +
> +  This routine calls ::Ax88179Reset to perform the adapter specific
> +  reset operation.  This routine also starts the link negotiation
> +  by calling ::Ax88179NegotiateLinkStart.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bExtendedVerification  Indicates that the driver may perform a more
> +                                exhaustive verification operation of the device
> +                                during reset.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Reset (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bExtendedVerification
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  NIC_DEVICE * pNicDevice;
> +  EFI_STATUS Status;
> +  EFI_TPL TplPrevious;
> +
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +  //
> +  //  Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +      //
> +      //  Update the device state
> +      //
> +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +
> +      //
> +      //  Reset the device
> +      //
> +      if (!pNicDevice->bFirstRst) {
> +        Status = EFI_SUCCESS;
> +      } else {
> +        Status = Ax88179Reset ( pNicDevice );
> +        if ( !EFI_ERROR ( Status )) {
> +          Status = ReceiveFilterUpdate ( pSimpleNetwork );
> +          if ( !EFI_ERROR ( Status ) && !pNicDevice->bLinkUp && pNicDevice->bFirstRst) {
> +            Status = Ax88179NegotiateLinkStart ( pNicDevice );
> +            pNicDevice->bFirstRst = FALSE;
> +          }
> +        }
> +      }
> +    } else {
> +      Status = EFI_NOT_STARTED;
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +  //
> +  // Return the operation status
> +  //
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +/**
> +  Initialize the simple network protocol.
> +
> +  This routine calls ::Ax88179MacAddressGet to obtain the
> +  MAC address.
> +
> +  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
> +
> +  @retval EFI_SUCCESS     Setup was successful
> +
> +**/
> +EFI_STATUS
> +SN_Setup (
> +  IN NIC_DEVICE * pNicDevice
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork;
> +  EFI_STATUS Status;
> +
> +  //
> +  // Initialize the simple network protocol
> +  //
> +  pSimpleNetwork = &pNicDevice->SimpleNetwork;
> +  pSimpleNetwork->Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
> +  pSimpleNetwork->Start = (EFI_SIMPLE_NETWORK_START)SN_Start;
> +  pSimpleNetwork->Stop = (EFI_SIMPLE_NETWORK_STOP)SN_Stop;
> +  pSimpleNetwork->Initialize = (EFI_SIMPLE_NETWORK_INITIALIZE)SN_Initialize;
> +  pSimpleNetwork->Reset = (EFI_SIMPLE_NETWORK_RESET)SN_Reset;
> +  pSimpleNetwork->Shutdown = (EFI_SIMPLE_NETWORK_SHUTDOWN)SN_Shutdown;
> +  pSimpleNetwork->ReceiveFilters = (EFI_SIMPLE_NETWORK_RECEIVE_FILTERS)SN_ReceiveFilters;
> +  pSimpleNetwork->StationAddress = (EFI_SIMPLE_NETWORK_STATION_ADDRESS)SN_StationAddress;
> +  pSimpleNetwork->Statistics = (EFI_SIMPLE_NETWORK_STATISTICS)SN_Statistics;
> +  pSimpleNetwork->MCastIpToMac = (EFI_SIMPLE_NETWORK_MCAST_IP_TO_MAC)SN_MCastIPtoMAC;
> +  pSimpleNetwork->NvData = (EFI_SIMPLE_NETWORK_NVDATA)SN_NvData;
> +  pSimpleNetwork->GetStatus = (EFI_SIMPLE_NETWORK_GET_STATUS)SN_GetStatus;
> +  pSimpleNetwork->Transmit = (EFI_SIMPLE_NETWORK_TRANSMIT)SN_Transmit;
> +  pSimpleNetwork->Receive = (EFI_SIMPLE_NETWORK_RECEIVE)SN_Receive;
> +  pSimpleNetwork->WaitForPacket = NULL;
> +  pMode = &pNicDevice->SimpleNetworkData;
> +  pSimpleNetwork->Mode = pMode;
> +  pMode->State = EfiSimpleNetworkStopped;
> +  pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
> +  pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
> +  pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
> +  pMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> +                           | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> +                           | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> +                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
> +                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
> +  pMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> +                              | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
> +  pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> +  pMode->MCastFilterCount = 0;
> +  pMode->NvRamSize = 512;
> +  pMode->NvRamAccessSize = 2;
> +  SetMem ( &pMode->BroadcastAddress,
> +           PXE_HWADDR_LEN_ETHER,
> +           0xff );
> +  pMode->IfType = EfiNetworkInterfaceUndi;
> +  pMode->MacAddressChangeable = TRUE;
> +  pMode->MultipleTxSupported = FALSE;
> +  pMode->MediaPresentSupported = TRUE;
> +  pMode->MediaPresent = FALSE;
> +  //
> +  //  Read the MAC address
> +  //
> +  pNicDevice->PhyId = PHY_ID_INTERNAL;
> +  pNicDevice->b100Mbps = FALSE;
> +  pNicDevice->b1000Mbps = TRUE;
> +  pNicDevice->bFullDuplex = TRUE;
> +  pNicDevice->bComplete = FALSE;
> +  pNicDevice->bLinkUp = FALSE;
> +  pNicDevice->Grub_f = FALSE;
> +  pNicDevice->bFirstRst = TRUE;
> +  pNicDevice->PktCnt = 0;
> +  pNicDevice->SkipRXCnt = 0;
> +  pNicDevice->usbMaxPktSize = 512;
> +  pNicDevice->bSetZeroLen = TRUE;
> +
> +  Status = Ax88179MacAddressGet ( pNicDevice,
> +                                  &pMode->PermanentAddress.Addr[0]);
> +  if ( !EFI_ERROR ( Status )) {
> +    //
> +    //  Use the hardware address as the current address
> +    //
> +    CopyMem ( &pMode->CurrentAddress,
> +              &pMode->PermanentAddress,
> +              PXE_HWADDR_LEN_ETHER );
> +
> +    CopyMem ( &pNicDevice->MAC,
> +              &pMode->PermanentAddress,
> +              PXE_HWADDR_LEN_ETHER );
> +
> +  } else {
> +    return Status;
> +  }
> +
> +  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
> +                               AX88179_MAX_BULKIN_SIZE,
> +                               (VOID **) &pNicDevice->pBulkInbuf );
> +
> +  if (EFI_ERROR (Status)) {
> +  return Status;
> +  }
> +
> +  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
> +                               sizeof ( TX_PACKET ),
> +                               (VOID **) &pNicDevice->pTxTest );
> +  if (EFI_ERROR (Status)) {
> +  gBS->FreePool (pNicDevice->pBulkInbuf);
> +  }
> +
> +  //
> +  //  Return the setup status
> +  //
> +  return Status;
> +}
> +
> +
> +/**
> +  This routine starts the network interface.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_ALREADY_STARTED   The network interface was already started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Start (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  )
> +{
> +  NIC_DEVICE * pNicDevice;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_STATUS Status;
> +  EFI_TPL TplPrevious;
> +
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +
> +
> +  //
> +  // Verify the parameters
> +  //
> +  Status = EFI_INVALID_PARAMETER;
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkStopped == pMode->State ) {
> +      //
> +      // Initialize the mode structure
> +      // NVRAM access is not supported
> +      //
> +      ZeroMem ( pMode, sizeof ( *pMode ));
> +
> +      pMode->State = EfiSimpleNetworkStarted;
> +      pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
> +      pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
> +      pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
> +      pMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> +                               | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> +                               | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> +                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
> +                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
> +      pMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;
> +      pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> +      pMode->MCastFilterCount = 0;
> +      pMode->NvRamSize = 512;
> +      pMode->NvRamAccessSize = 2;
> +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +      Status = Ax88179MacAddressGet ( pNicDevice, &pMode->PermanentAddress.Addr[0]);
> +      CopyMem ( &pMode->CurrentAddress,
> +                &pMode->PermanentAddress,
> +                sizeof ( pMode->CurrentAddress ));
> +      SetMem(&pMode->BroadcastAddress, PXE_HWADDR_LEN_ETHER, 0xff);
> +      pMode->IfType = EfiNetworkInterfaceUndi;
> +      pMode->MacAddressChangeable = TRUE;
> +      pMode->MultipleTxSupported = FALSE;
> +      pMode->MediaPresentSupported = TRUE;
> +      pMode->MediaPresent = FALSE;
> +
> +    } else {
> +      Status = EFI_ALREADY_STARTED;
> +    }
> +  }
> +  //
> +  // Return the operation status
> +  //
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +
> +/**
> +  Set the MAC address.
> +
> +  This function modifies or resets the current station address of a
> +  network interface.  If Reset is TRUE, then the current station address
> +  is set ot the network interface's permanent address.  If Reset if FALSE
> +  then the current station address is changed to the address specified by
> +  pNew.
> +
> +  This routine calls ::Ax88179MacAddressSet to update the MAC address
> +  in the network adapter.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bReset            Flag used to reset the station address to the
> +                                network interface's permanent address.
> +  @param [in] pNew              New station address to be used for the network
> +                                interface.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_StationAddress (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bReset,
> +  IN EFI_MAC_ADDRESS * pNew
> +  )
> +{
> +  NIC_DEVICE * pNicDevice;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_STATUS Status;
> +
> +  EFI_TPL TplPrevious;
> +
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) &&
> +      ( NULL != pSimpleNetwork->Mode ) &&
> +      (( !bReset ) || ( bReset && ( NULL != pNew )))) {
> +    //
> +    // Verify that the adapter is already started
> +    //
> +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +      //
> +      // Determine the adapter MAC address
> +      //
> +      if ( bReset ) {
> +        //
> +        // Use the permanent address
> +        //
> +        CopyMem ( &pMode->CurrentAddress,
> +                  &pMode->PermanentAddress,
> +                  sizeof ( pMode->CurrentAddress ));
> +      } else {
> +        //
> +        // Use the specified address
> +        //
> +        CopyMem ( &pMode->CurrentAddress,
> +                  pNew,
> +                  sizeof ( pMode->CurrentAddress ));
> +      }
> +
> +      //
> +      // Update the address on the adapter
> +      //
> +      Status = Ax88179MacAddressSet ( pNicDevice, &pMode->CurrentAddress.Addr[0]);
> +    }  else {
> +      if (EfiSimpleNetworkStarted == pMode->State) {
> +          Status = EFI_DEVICE_ERROR; ;
> +      } else {
> +          Status = EFI_NOT_STARTED ;
> +      }
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +
> +  //
> +  // Return the operation status
> +  //
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +
> +/**
> +  This function resets or collects the statistics on a network interface.
> +  If the size of the statistics table specified by StatisticsSize is not
> +  big enough for all of the statistics that are collected by the network
> +  interface, then a partial buffer of statistics is returned in
> +  StatisticsTable.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
> +  @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
> +                                the size, in bytes, of the resulting table of statistics.
> +  @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
> +                                conains the statistics.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +  typedef struct {
> +  UINT64 RxTotalFrames;
> +  UINT64 RxGoodFrames;
> +  UINT64 RxUndersizeFrames;
> +  UINT64 RxOversizeFrames;
> +  UINT64 RxDroppedFrames;
> +  UINT64 RxUnicastFrames;
> +  UINT64 RxBroadcastFrames;
> +  UINT64 RxMulticastFrames;
> +  UINT64 RxCrcErrorFrames;
> +  UINT64 RxTotalBytes;
> +  UINT64 TxTotalFrames;
> +  UINT64 TxGoodFrames;
> +  UINT64 TxUndersizeFrames;
> +  UINT64 TxOversizeFrames;
> +  UINT64 TxDroppedFrames;
> +  UINT64 TxUnicastFrames;
> +  UINT64 TxBroadcastFrames;
> +  UINT64 TxMulticastFrames;
> +  UINT64 TxCrcErrorFrames;
> +  UINT64 TxTotalBytes;
> +  UINT64 Collisions;
> +  UINT64 UnsupportedProtocol;
> +  } EFI_NETWORK_STATISTICS;
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Statistics (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN BOOLEAN bReset,
> +  IN OUT UINTN * pStatisticsSize,
> +  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
> +  )
> +{
> +  EFI_STATUS Status;
> +  EFI_TPL TplPrevious;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +
> +
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +  pMode = pSimpleNetwork->Mode;
> +
> +  if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +    if (NULL != pStatisticsSize && 0 == *pStatisticsSize) {
> +      Status = EFI_BUFFER_TOO_SMALL;
> +      goto EXIT;
> +    }
> +
> +    if(bReset) {
> +      Status = EFI_SUCCESS;
> +    } else {
> +      Status = EFI_SUCCESS;
> +    }
> +  } else {
> +    if (EfiSimpleNetworkStarted == pMode->State) {
> +      Status = EFI_DEVICE_ERROR; ;
> +    } else {
> +      Status = EFI_NOT_STARTED ;
> +    }
> +  }
> +
> +  Status = EFI_UNSUPPORTED;
> +EXIT:
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +
> +/**
> +  This function stops a network interface.  This call is only valid
> +  if the network interface is in the started state.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Stop (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_STATUS Status;
> +  EFI_TPL TplPrevious;
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // Determine if the interface is started
> +    //
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkStarted == pMode->State ) {
> +        pMode->State = EfiSimpleNetworkStopped;
> +        Status = EFI_SUCCESS;
> +    } else {
> +        Status = EFI_NOT_STARTED;
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +  //
> +  // Return the operation status
> +  //
> +  gBS->RestoreTPL(TplPrevious);
> +  return Status;
> +}
> +
> +/**
> +  This function releases the memory buffers assigned in the Initialize() call.
> +  Pending transmits and receives are lost, and interrupts are cleared and disabled.
> +  After this call, only Initialize() and Stop() calls may be used.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Shutdown (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> +  )
> +{
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  EFI_STATUS Status;
> +  NIC_DEVICE * pNicDevice;
> +  EFI_TPL TplPrevious;
> +
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // Determine if the interface is already started
> +    //
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +      //
> +      // Stop the adapter
> +      //
> +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +
> +      Status = Ax88179MacAddressGet ( pNicDevice, &pMode->PermanentAddress.Addr[0]);
> +      if ( !EFI_ERROR ( Status )) {
> +        //
> +        // Update the network state
> +        //
> +        pMode->State = EfiSimpleNetworkStarted;
> +      } else if ( EFI_DEVICE_ERROR == Status ) {
> +        pMode->State = EfiSimpleNetworkStopped;
> +      }
> +    } else {
> +      Status = EFI_NOT_STARTED;
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +  //
> +  // Return the operation status
> +  //
> +  gBS->RestoreTPL(TplPrevious );
> +  return Status;
> +}
> +
> +
> +/**
> +  Send a packet over the network.
> +
> +  This function places the packet specified by Header and Buffer on
> +  the transmit queue.  This function performs a non-blocking transmit
> +  operation.  When the transmit is complete, the buffer is returned
> +  via the GetStatus() call.
> +
> +  This routine calls ::Ax88179Rx to empty the network adapter of
> +  receive packets.  The routine then passes the transmit packet
> +  to the network adapter.
> +
> +  @param [in] pSimpleNetwork    Protocol instance pointer
> +  @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
> +                                the Transmit() function.  If HeaderSize is non-zero, then
> +                                it must be equal to SimpleNetwork->Mode->MediaHeaderSize
> +                                and DestAddr and Protocol parameters must not be NULL.
> +  @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
> +                                data) to be transmitted through the network interface.
> +  @param [in] pBuffer           A pointer to the packet (media header followed by data) to
> +                                to be transmitted.  This parameter can not be NULL.  If
> +                                HeaderSize is zero, then the media header is Buffer must
> +                                already be filled in by the caller.  If HeaderSize is nonzero,
> +                                then the media header will be filled in by the Transmit()
> +                                function.
> +  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
> +                                this parameter is ignored.  If HeaderSize is nonzero and
> +                                SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
> +                                is used for the source HW MAC address.
> +  @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
> +                                this parameter is ignored.
> +  @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
> +                                this parameter is ignored.
> +
> +  @retval EFI_SUCCESS           This operation was successful.
> +  @retval EFI_NOT_STARTED       The network interface was not started.
> +  @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
> +  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
> +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
> +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> +  @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SN_Transmit (
> +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> +  IN UINTN HeaderSize,
> +  IN UINTN BufferSize,
> +  IN VOID * pBuffer,
> +  IN EFI_MAC_ADDRESS * pSrcAddr,
> +  IN EFI_MAC_ADDRESS * pDestAddr,
> +  IN UINT16 * pProtocol
> +  )
> +{
> +  ETHERNET_HEADER * pHeader;
> +  EFI_SIMPLE_NETWORK_MODE * pMode;
> +  NIC_DEVICE * pNicDevice;
> +  EFI_USB_IO_PROTOCOL * pUsbIo;
> +  EFI_STATUS Status;
> +  UINTN TransferLength;
> +  UINT32 TransferStatus;
> +  UINT16 Type = 0;
> +  EFI_TPL TplPrevious;
> +
> +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> +  //
> +  // Verify the parameters
> +  //
> +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> +    //
> +    // The interface must be running
> +    //
> +    pMode = pSimpleNetwork->Mode;
> +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> +      //
> +      // Update the link status
> +      //
> +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> +
> +      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
> +        if (0 != HeaderSize && pMode->MediaHeaderSize != HeaderSize)  {
> +            Status = EFI_INVALID_PARAMETER;
> +            goto EXIT;
> +        }
> +        if (BufferSize <  pMode->MediaHeaderSize) {
> +            Status = EFI_INVALID_PARAMETER;
> +            goto EXIT;
> +        }
> +        if (NULL == pBuffer) {
> +            Status = EFI_INVALID_PARAMETER;
> +            goto EXIT;
> +        }
> +        if (0 != HeaderSize && NULL == pDestAddr) {
> +            Status = EFI_INVALID_PARAMETER;
> +            goto EXIT;
> +        }
> +        if (0 != HeaderSize && NULL == pProtocol) {
> +            Status = EFI_INVALID_PARAMETER;
> +            goto EXIT;
> +        }
> +        //
> +        //  Copy the packet into the USB buffer
> +        //
> +        // pBuffer starting with 14 bytes 0
> +        CopyMem ( &pNicDevice->pTxTest->Data[0], pBuffer, BufferSize);
> +        pNicDevice->pTxTest->TxHdr1 = (UINT32) BufferSize;
> +        pNicDevice->pTxTest->TxHdr2 = 0;
> +        //
> +        //  Transmit the packet
> +        //
> +        pHeader = (ETHERNET_HEADER *) &pNicDevice->pTxTest->Data[0];
> +        if ( 0 != HeaderSize ) {
> +          if ( NULL != pDestAddr ) {
> +            CopyMem ( &pHeader->dest_addr, pDestAddr, PXE_HWADDR_LEN_ETHER );
> +          }
> +          if ( NULL != pSrcAddr ) {
> +            CopyMem ( &pHeader->src_addr, pSrcAddr, PXE_HWADDR_LEN_ETHER );
> +          } else {
> +            CopyMem ( &pHeader->src_addr, &pMode->CurrentAddress.Addr[0], PXE_HWADDR_LEN_ETHER );
> +          }
> +          if ( NULL != pProtocol ) {
> +            Type = *pProtocol;
> +          } else {
> +              Type = (UINT16) BufferSize;
> +          }
> +          Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
> +          pHeader->type = Type;
> +        }
> +
> +        if ( pNicDevice->pTxTest->TxHdr1 < MIN_ETHERNET_PKT_SIZE ) {
> +          pNicDevice->pTxTest->TxHdr1 = MIN_ETHERNET_PKT_SIZE;
> +          ZeroMem ( &pNicDevice->pTxTest->Data[BufferSize],
> +                    MIN_ETHERNET_PKT_SIZE - BufferSize );
> +        }
> +
> +        TransferLength = sizeof ( pNicDevice->pTxTest->TxHdr1 )
> +                       + sizeof ( pNicDevice->pTxTest->TxHdr2 )
> +                       + pNicDevice->pTxTest->TxHdr1;
> +        //
> +        //  Work around USB bus driver bug where a timeout set by receive
> +        //  succeeds but the timeout expires immediately after, causing the
> +        //  transmit operation to timeout.
> +        //
> +        pUsbIo = pNicDevice->pUsbIo;
> +        Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
> +                                           BULK_OUT_ENDPOINT,
> +                                           &pNicDevice->pTxTest->TxHdr1,
> +                                           &TransferLength,
> +                                           0xfffffffe,
> +                                           &TransferStatus );
> +
> +        if (!EFI_ERROR(Status) && !EFI_ERROR(Status)) {
> +              pNicDevice->pTxBuffer = pBuffer;
> +              Status = EFI_SUCCESS;
> +        } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT == TransferStatus) {
> +              Status = EFI_NOT_READY;
> +        } else {
> +              Status = EFI_DEVICE_ERROR;
> +        }
> +      } else {
> +        //
> +        // No packets available.
> +        //
> +        Status = EFI_NOT_READY;
> +      }
> +    } else {
> +      if (EfiSimpleNetworkStarted == pMode->State) {
> +          Status = EFI_DEVICE_ERROR; ;
> +      } else {
> +          Status = EFI_NOT_STARTED ;
> +      }
> +    }
> +  } else {
> +    Status = EFI_INVALID_PARAMETER;
> +  }
> +EXIT:
> +  gBS->RestoreTPL (TplPrevious);
> +  return Status;
> +}
> --
> 2.17.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
  2020-05-07  5:22   ` Ni, Ray
@ 2020-05-07 16:20     ` Samer El-Haj-Mahmoud
  2020-05-08  0:53       ` [edk2-devel] " Ni, Ray
  0 siblings, 1 reply; 6+ messages in thread
From: Samer El-Haj-Mahmoud @ 2020-05-07 16:20 UTC (permalink / raw)
  To: Ni, Ray, devel@edk2.groups.io
  Cc: Leif Lindholm, Ard Biesheuvel, Kinney, Michael D,
	Samer El-Haj-Mahmoud

Thanks Ray

So you are suggesting we put the ASIX drivers under something like this?

edk2-platforms/Drivers/Asix/

If this is the case, then I think we should move the existing ASIX drivers (Ax88772 and Ax88772b) form edk2-platforms/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking to the new folder. It does not make sense to keep the old and new versions of the drivers in separate locations.

Also, I plan on submitting the Realtek USB NIC driver. I assume, following this pattern, that we will want to put it under edk2-platforms/Drivers/Realtek/ , correct?

Thanks,
--Samer


> -----Original Message-----
> From: Ni, Ray <ray.ni@intel.com>
> Sent: Thursday, May 7, 2020 1:23 AM
> To: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>;
> devel@edk2.groups.io
> Cc: Leif Lindholm <leif@nuviainc.com>; Ard Biesheuvel
> <Ard.Biesheuvel@arm.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>
> Subject: RE: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking:
> ASIX Ax88179 driver
>
> Samer,
> Can you please create a vendor directory Asix and a standalone package
> inside Asix to hold the Ax88179 driver?
> OptionRomPkg is legacy package that shouldn't be used to hold all UEFI
> drivers.
>
> Thanks,
> Ray
>
> > -----Original Message-----
> > From: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
> > Sent: Thursday, May 7, 2020 11:37 AM
> > To: devel@edk2.groups.io
> > Cc: Ni, Ray <ray.ni@intel.com>; Leif Lindholm <leif@nuviainc.com>; Ard
> Biesheuvel <ard.biesheuvel@arm.com>
> > Subject: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking:
> ASIX Ax88179 driver
> >
> > This is the initial revision of ASIX USB networking UEFI driver
> > version 2.9.0 for Ax88179 and Ax88178a
> >
> https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=131;71;1
> 12
> >
> > Source code contributed by ASIX.
> >
> > Cc: Ray Ni <ray.ni@intel.com>
> > Cc: Leif Lindholm <leif@nuviainc.com>
> > Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
> >
> > Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-
> mahmoud@arm.com>
> > ---
> >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> |   66 +
> >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> | 1127 ++++++++++++++
> >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c       |
> 1026 +++++++++++++
> >
> Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNam
> e.c |  290 ++++
> >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> |  620 ++++++++
> >
> Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
> | 1585 ++++++++++++++++++++
> >  6 files changed, 4714 insertions(+)
> >
> > diff --git
> a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > new file mode 100644
> > index 000000000000..a1883e9da1fd
> > --- /dev/null
> > +++
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > @@ -0,0 +1,66 @@
> > +## @file
> > +# Component description file for ASIX AX88772 USB/Ethernet driver.
> > +#
> > +# This module provides support for the ASIX AX88772 USB/Ethernet
> adapter.
> > +# Copyright (c) 2011, Intel Corporation
> > +#
> > +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +#
> > +##
> > +
> > +[Defines]
> > +  INF_VERSION                    = 0x00010018
> > +  BASE_NAME                      = Ax88179
> > +  FILE_GUID                      = 27E5D3B6-7839-47C2-8618-5D2190729BC7
> > +  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
> > +  VERSION_STRING                 = 1.0
> > +
> > +  ENTRY_POINT                    = EntryPoint
> > +
> > +#
> > +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> > +#
> > +
> > +[Sources.common]
> > +  Ax88179.h
> > +  Ax88179.c
> > +  ComponentName.c
> > +  DriverBinding.c
> > +  SimpleNetwork.c
> > +
> > +
> > +[Packages]
> > +  MdePkg/MdePkg.dec
> > +  MdeModulePkg/MdeModulePkg.dec
> > +
> > +[LibraryClasses]
> > +  UefiLib
> > +  UefiBootServicesTableLib
> > +  BaseMemoryLib
> > +  DebugLib
> > +  UefiRuntimeLib
> > +  UefiDriverEntryPoint
> > +
> > +[Protocols]
> > +  gEfiDevicePathProtocolGuid           ## BY_START
> > +  gEfiSimpleNetworkProtocolGuid        ## BY_START
> > +  gEfiUsbIoProtocolGuid                ## TO_START
> > +
> > +#[Guids]
> > +  #gEfiEventExitBootServicesGuid        ## PRODUCES ## Event
> > +  #gEfiEventVirtualAddressChangeGuid    ## PRODUCES ## Event
> > +  #gEfiNicIp4ConfigVariableGuid
> > +
> > +[Depex]
> > +  gEfiBdsArchProtocolGuid AND
> > +  gEfiCpuArchProtocolGuid AND
> > +  gEfiMetronomeArchProtocolGuid AND
> > +  gEfiMonotonicCounterArchProtocolGuid AND
> > +  gEfiRealTimeClockArchProtocolGuid AND
> > +  gEfiResetArchProtocolGuid AND
> > +  gEfiRuntimeArchProtocolGuid AND
> > +  gEfiSecurityArchProtocolGuid AND
> > +  gEfiTimerArchProtocolGuid AND
> > +  gEfiVariableWriteArchProtocolGuid AND
> > +  gEfiVariableArchProtocolGuid AND
> > +  gEfiWatchdogTimerArchProtocolGuid
> > diff --git
> a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > new file mode 100644
> > index 000000000000..82c9a3668d86
> > --- /dev/null
> > +++
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > @@ -0,0 +1,1127 @@
> > +/** @file
> > +  Definitions for ASIX AX88179 Ethernet adapter.
> > +
> > +  Copyright (c) 2011, Intel Corporation
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +**/
> > +
> > +#ifndef _AX88179_H_
> > +#define _AX88179_H_
> > +
> > +#include <Uefi.h>
> > +
> > +#include <Guid/EventGroup.h>
> > +
> > +#include <IndustryStandard/Pci.h>
> > +
> > +#include <Library/BaseMemoryLib.h>
> > +#include <Library/DebugLib.h>
> > +#include <Library/DevicePathLib.h>
> > +#include <Library/UefiBootServicesTableLib.h>
> > +#include <Library/UefiDriverEntryPoint.h>
> > +#include <Library/UefiLib.h>
> > +#include <Library/UefiRuntimeLib.h>
> > +
> > +#include <Protocol/DevicePath.h>
> > +#include <Protocol/LoadedImage.h>
> > +#include <Protocol/NetworkInterfaceIdentifier.h>
> > +#include <Protocol/SimpleNetwork.h>
> > +#include <Protocol/UsbIo.h>
> > +
> > +
> > +#define PASS_SCT      0
> > +#define FORCE_100Mbps 0
> > +#define REPORTLINK    1
> > +
> > +
> > +//------------------------------------------------------------------------------
> > +//  Macros
> > +//------------------------------------------------------------------------------
> > +
> > +//#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler
> specifics. */
> > +#define DBG_ENTER()             DEBUG (( 0xffffffff, "Entering "
> __FUNCTION__ "\n" )) ///<  Display routine entry
> > +#define DBG_EXIT()              DEBUG (( 0xffffffff, "Exiting " __FUNCTION__
> "\n" ))  ///<  Display routine exit
> > +#define DBG_EXIT_DEC(Status)    DEBUG (( 0xffffffff, "Exiting "
> __FUNCTION__ ", Status: %d\n", Status ))      ///<  Display
> > routine exit with decimal value
> > +#define DBG_EXIT_HEX(Status)    DEBUG (( 0xffffffff, "Exiting "
> __FUNCTION__ ", Status: 0x%08x\n", Status ))  ///<  Display
> > routine exit with hex value
> > +#define DBG_EXIT_STATUS(Status) DEBUG (( 0xffffffff, "Exiting "
> __FUNCTION__ ", Status: %r\n", Status ))      ///<  Display
> > routine exit with status value
> > +#define DBG_EXIT_TF(Status)     DEBUG (( 0xffffffff, "Exiting "
> __FUNCTION__ ", returning %s\n", (FALSE == Status) ?
> > L"FALSE" : L"TRUE" ))  ///<  Display routine with TRUE/FALSE value
> > +//#else   //  _MSC_VER
> > +//#define DBG_ENTER()               ///<  Display routine entry
> > +//#define DBG_EXIT()                ///<  Display routine exit
> > +//#define DBG_EXIT_DEC(Status)      ///<  Display routine exit with decimal
> value
> > +//#define DBG_EXIT_HEX(Status)      ///<  Display routine exit with hex
> value
> > +//#define DBG_EXIT_STATUS(Status)   ///<  Display routine exit with status
> value
> > +//#define DBG_EXIT_TF(Status)       ///<  Display routine with TRUE/FALSE
> value
> > +//#endif  //  _MSC_VER
> > +
> > +#define USB_IS_IN_ENDPOINT(EndPointAddr)      (((EndPointAddr) & BIT7)
> != 0)  ///<  Return TRUE/FALSE for IN direction
> > +#define USB_IS_OUT_ENDPOINT(EndPointAddr)     (((EndPointAddr) &
> BIT7) == 0)  ///<  Return TRUE/FALSE for OUT
> > direction
> > +#define USB_IS_BULK_ENDPOINT(Attribute)       (((Attribute) & (BIT0 |
> BIT1)) == USB_ENDPOINT_BULK)      ///<  Return
> > TRUE/FALSE for BULK type
> > +#define USB_IS_INTERRUPT_ENDPOINT(Attribute)  (((Attribute) & (BIT0 |
> BIT1)) == USB_ENDPOINT_INTERRUPT) ///<
> > Return TRUE/FALSE for INTERRUPT type
> > +
> > +//------------------------------------------------------------------------------
> > +//  Constants
> > +//------------------------------------------------------------------------------
> > +
> > +#define DEBUG_RX_BROADCAST  0x40000000  ///<  Display RX broadcast
> messages
> > +#define DEBUG_RX_MULTICAST  0x20000000  ///<  Display RX multicast
> messages
> > +#define DEBUG_RX_UNICAST    0x10000000  ///<  Display RX unicast
> messages
> > +#define DEBUG_MAC_ADDRESS   0x08000000  ///<  Display the MAC
> address
> > +#define DEBUG_LINK          0x04000000  ///<  Display the link status
> > +#define DEBUG_TX            0x02000000  ///<  Display the TX messages
> > +#define DEBUG_PHY           0x01000000  ///<  Display the PHY register
> values
> > +#define DEBUG_SROM          0x00800000  ///<  Display the SROM contents
> > +#define DEBUG_TIMER         0x00400000  ///<  Display the timer routine
> entry/exit
> > +#define DEBUG_TPL           0x00200000  ///<  Display the timer routine
> entry/exit
> > +
> > +
> > +#define ETHERNET_HEADER_SIZE  sizeof ( ETHERNET_HEADER )  ///<  Size
> in bytes of the Ethernet header
> > +#define MIN_ETHERNET_PKT_SIZE 60    ///<  Minimum packet size
> including Ethernet header
> > +#define MAX_ETHERNET_PKT_SIZE 1500
> > +
> > +#define USB_NETWORK_CLASS   0x09    ///<  USB Network class code
> > +#define USB_BUS_TIMEOUT     1000    ///<  USB timeout in milliseconds
> > +
> > +//#define TIMER_MSEC          20            ///<  Polling interval for the NIC
> > +//#define TPL_AX88179         TPL_CALLBACK    ///<  TPL for routine
> synchronization
> > +
> > +
> > +#define AX88179_BULKIN_SIZE_INK     2
> > +#define AX88179_MAX_BULKIN_SIZE    1024 *
> AX88179_BULKIN_SIZE_INK
> > +#define AX88179_MAX_PKT_SIZE  2048
> > +
> > +#define HC_DEBUG  0
> > +#define ADD_MACPATHNOD  1
> > +#define BULKIN_TIMEOUT  3 //5000
> > +#define TX_RETRY 0
> > +#define AUTONEG_DELAY 1000000
> > +/**
> > +  Verify new TPL value
> > +
> > +  This macro which is enabled when debug is enabled verifies that
> > +  the new TPL value is >= the current TPL value.
> > +**/
> > +#ifdef VERIFY_TPL
> > +#undef VERIFY_TPL
> > +#endif  //  VERIFY_TPL
> > +
> > +#if !defined(MDEPKG_NDEBUG)
> > +
> > +#define VERIFY_TPL(tpl)                           \
> > +{                                                 \
> > +  EFI_TPL PreviousTpl;                            \
> > +                                                  \
> > +  PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \
> > +  gBS->RestoreTPL ( PreviousTpl );                \
> > +  if ( PreviousTpl > tpl ) {                      \
> > +    DEBUG (( DEBUG_ERROR, "Current TPL: %d, New TPL: %d\r\n",
> PreviousTpl, tpl ));  \
> > +    ASSERT ( PreviousTpl <= tpl );                \
> > +  }                                               \
> > +}
> > +
> > +#else   //  MDEPKG_NDEBUG
> > +
> > +#define VERIFY_TPL(tpl)
> > +
> > +#endif  //  MDEPKG_NDEBUG
> > +
> > +//------------------------------------------------------------------------------
> > +//  Hardware Definition
> > +//------------------------------------------------------------------------------
> > +
> > +#define DEV_SIGNATURE     SIGNATURE_32 ('A','X','8','8')  ///<  Signature
> of data structures in memory
> > +
> > +#define VENDOR_ID         0x0B95  ///<  Vendor ID for Asix
> > +#define PRODUCT_ID        0x1790  ///<  Product ID for the AX88179 USB
> 10/100 Ethernet controller
> > +#define PRODUCT_ID_178A   0x178A
> > +
> > +#define RESET_MSEC        1000    ///<  Reset duration
> > +#define PHY_RESET_MSEC     100    ///<  PHY reset duration
> > +
> > +//
> > +//  RX Control register
> > +//
> > +
> > +
> > +
> > +/*Freddy*/
> > +#define RXC_RH1M          0x0100  ///<  Rx header 1
> > +#define RXC_RH2M          0x0200  ///<  Rx header 2
> > +#define RXC_RH3M          0x0400  ///<  Rx header 3
> > +/*Freddy*/
> > +
> > +//
> > +//  Medium Status register
> > +//
> > +
> > +
> > +
> > +//
> > +//  Software PHY Select register
> > +//
> > +
> > +#define SPHY_PSEL         0x01    ///<  Select internal PHY
> > +#define SPHY_ASEL         0x02    ///<  1=Auto select, 0=Manual select
> > +
> > +//
> > +//  Software Reset register
> > +//
> > +
> > +#define SRR_RR            0x01    ///<  Clear receive frame length error
> > +#define SRR_RT            0x02    ///<  Clear transmit frame length error
> > +#define SRR_PRTE          0x04    ///<  External PHY reset pin tri-state enable
> > +#define SRR_PRL           0x08    ///<  External PHY reset pin level
> > +#define SRR_BZ            0x10    ///<  Force Bulk to return zero length packet
> > +#define SRR_IPRL          0x20    ///<  Internal PHY reset control
> > +#define SRR_IPPD          0x40    ///<  Internal PHY power down
> > +
> > +//
> > +//  PHY ID values
> > +//
> > +
> > +#define PHY_ID_INTERNAL   0x0003  ///<  Internal PHY
> > +
> > +//
> > +//  USB Commands
> > +//
> > +
> > +#define CMD_PHY_ACCESS_SOFTWARE   0x06  ///<  Software in control
> of PHY
> > +#define CMD_PHY_REG_READ          0x07  ///<  Read PHY register, Value:
> PHY, Index: Register, Data: Register value
> > +#define CMD_PHY_REG_WRITE         0x08  ///<  Write PHY register, Value:
> PHY, Index: Register, Data: New 16-bit value
> > +#define CMD_PHY_ACCESS_HARDWARE   0x0a  ///<  Hardware in control
> of PHY
> > +#define CMD_SROM_READ             0x0b  ///<  Read SROM register: Value:
> Address, Data: Value
> > +#define CMD_RX_CONTROL_WRITE      0x10  ///<  Set the RX control
> register, Value: New value
> > +#define CMD_GAPS_WRITE            0x12  ///<  Write the gaps register,
> Value: New value
> > +#define CMD_MAC_ADDRESS_READ      0x11  ///<  Read the MAC address,
> Data: 6 byte MAC address
> > +#define CMD_MAC_ADDRESS_WRITE     0x14  ///<  Set the MAC address,
> Data: New 6 byte MAC address
> > +
> > +#define CMD_MEDIUM_STATUS_READ    0x1a  ///<  Read medium status
> register, Data: Register value
> > +#define CMD_MEDIUM_STATUS_WRITE   0x1b  ///<  Write medium status
> register, Value: New value
> > +#define CMD_RESET                 0x20  ///<  Reset register, Value: New value
> > +#define CMD_PHY_SELECT            0x22  ///<  PHY select register, Value:
> New value
> > +
> > +/*Freddy*/
> > +#define CMD_RXQTC                 0x2a  ///<  RX Queue Cascade Threshold
> Control Register
> > +/*Freddy*/
> > +
> > +//------------------------------
> > +//  USB Endpoints
> > +//------------------------------
> > +
> > +#define CONTROL_ENDPOINT                0       ///<  Control endpoint
> > +#define INTERRUPT_ENDPOINT              1       ///<  Interrupt endpoint
> > +#define BULK_IN_ENDPOINT                2       ///<  Receive endpoint
> > +#define BULK_OUT_ENDPOINT               3       ///<  Transmit endpoint
> > +
> > +//------------------------------
> > +//  PHY Registers
> > +//------------------------------
> > +
> > +
> > +
> > +
> > +
> > +#define PHY_ANER                        6       ///<  Autonegotiation expansion
> register
> > +
> > +
> > +
> > +//  BSMR - Register 1
> > +
> > +
> > +
> > +//  ANAR and ANLPAR Registers 4, 5
> > +
> > +#define RXHDR_DROP 0x8000
> > +//#define RXHDR_MIIERR 0x4000
> > +#define RXHDR_CRCERR 0x2000
> > +
> > +
> > +//------------------------------------------------------------------------------
> > +//  Data Types
> > +//------------------------------------------------------------------------------
> > +
> > +/**
> > +  Ethernet header layout
> > +
> > +  IEEE 802.3-2002 Part 3 specification, section 3.1.1.
> > +**/
> > +#pragma pack(1)
> > +typedef struct {
> > +  UINT8 dest_addr[PXE_HWADDR_LEN_ETHER];  ///<  Destination LAN
> address
> > +  UINT8 src_addr[PXE_HWADDR_LEN_ETHER];   ///<  Source LAN address
> > +  UINT16 type;                            ///<  Protocol or length
> > +} ETHERNET_HEADER;
> > +#pragma pack()
> > +
> > +/**
> > +  Receive and Transmit packet structure
> > +**/
> > +
> > +
> > +
> > +
> > +#pragma pack(1)
> > +typedef struct _TX_PACKET {
> > +//  struct _TX_PACKET * pNext;       ///<  Next receive packet
> > +  UINT32  TxHdr1;
> > +  UINT32  TxHdr2;
> > +  UINT8 Data[ AX88179_MAX_PKT_SIZE ]; ///<  Received packet data
> > +} TX_PACKET;
> > +#pragma pack()
> > +
> > +#pragma pack(1)
> > +typedef struct _RX_PACKET {
> > +  struct _RX_PACKET * pNext;
> > +  UINT16  Length;
> > +  UINT16  EEEE;
> > +  UINT8 Data[ AX88179_MAX_PKT_SIZE ];
> > +} RX_PACKET;
> > +#pragma pack()
> > +
> > +
> > +
> > +
> > +/**
> > +  AX88179 control structure
> > +
> > +  The driver uses this structure to manage the Asix AX88179 10/100
> > +  Ethernet controller.
> > +**/
> > +typedef struct {
> > +  UINTN Signature;          ///<  Structure identification
> > +
> > +  //
> > +  //  USB data
> > +  //
> > +  EFI_HANDLE Controller;        ///<  Controller handle
> > +  EFI_USB_IO_PROTOCOL * pUsbIo; ///<  USB driver interface
> > +
> > +  //
> > +  //  Simple network protocol data
> > +  //
> > +  EFI_SIMPLE_NETWORK_PROTOCOL SimpleNetwork;  ///<  Driver's
> network stack interface
> > +  EFI_SIMPLE_NETWORK_MODE SimpleNetworkData;  ///<  Data for
> simple network
> > +
> > +  //
> > +  // Ethernet controller data
> > +  //
> > +  BOOLEAN bInitialized;     ///<  Controller initialized
> > +  UINT16 PhyId;             ///<  PHY ID
> > +
> > +  //
> > +  //  Link state
> > +  //
> > +  BOOLEAN b100Mbps;         ///<  Current link speed, FALSE = 10 Mbps
> > +  BOOLEAN b1000Mbps;        ///<  Current link speed, FALSE = 100/10 bps
> > +  BOOLEAN bComplete;        ///<  Current state of auto-negotiation
> > +  BOOLEAN bFullDuplex;      ///<  Current duplex
> > +  BOOLEAN bLinkUp;          ///<  Current link state
> > +  BOOLEAN bLinkIdle;        ///<  TRUE = No received traffic
> > +  EFI_EVENT Timer;          ///<  Timer to monitor link state and receive
> packets
> > +  UINTN PollCount;          ///<  Number of times the autonegotiation status
> was polled
> > +  UINTN SkipRXCnt;
> > +
> > +  UINT8     *pBulkInbuf;
> > +  UINT16    PktCnt;
> > +  UINT8    * pCurPktHdrOff;
> > +  UINT8     *pCurPktOff;
> > +
> > +  TX_PACKET * pTxTest;
> > +
> > +  INT8 MulticastHash[8];
> > +  EFI_MAC_ADDRESS MAC;
> > +
> > +  UINT16 CurMediumStatus;
> > +  UINT16 CurRxControl;
> > +  VOID * pTxBuffer;
> > +
> > +  EFI_DEVICE_PATH_PROTOCOL                  *MyDevPath;
> > +  BOOLEAN   Grub_f;
> > +  BOOLEAN   bFirstRst;
> > +  BOOLEAN   bSetZeroLen;
> > +  UINT8 rxburst;
> > +  UINTN usbMaxPktSize;
> > +
> > +} NIC_DEVICE;
> > +
> > +#define DEV_FROM_SIMPLE_NETWORK(a)  CR (a, NIC_DEVICE,
> SimpleNetwork, DEV_SIGNATURE)  ///< Locate NIC_DEVICE
> > from Simple Network Protocol
> > +
> > +//------------------------------------------------------------------------------
> > +// Simple Network Protocol
> > +//------------------------------------------------------------------------------
> > +
> > +/**
> > +  Reset the network adapter.
> > +
> > +  Resets a network adapter and reinitializes it with the parameters that
> > +  were provided in the previous call to Initialize ().  The transmit and
> > +  receive queues are cleared.  Receive filters, the station address, the
> > +  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
> > +  this call.
> > +
> > +  This routine calls ::Ax88179Reset to perform the adapter specific
> > +  reset operation.  This routine also starts the link negotiation
> > +  by calling ::Ax88179NegotiateLinkStart.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bExtendedVerification  Indicates that the driver may
> perform a more
> > +                                exhaustive verification operation of the device
> > +                                during reset.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Reset (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bExtendedVerification
> > +  );
> > +
> > +/**
> > +  Initialize the simple network protocol.
> > +
> > +  This routine calls ::Ax88179MacAddressGet to obtain the
> > +  MAC address.
> > +
> > +  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
> > +
> > +  @retval EFI_SUCCESS     Setup was successful
> > +
> > +**/
> > +EFI_STATUS
> > +SN_Setup (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +
> > +/**
> > +  This routine starts the network interface.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_ALREADY_STARTED   The network interface was already
> started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Start (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  );
> > +
> > +/**
> > +  Set the MAC address.
> > +
> > +  This function modifies or resets the current station address of a
> > +  network interface.  If Reset is TRUE, then the current station address
> > +  is set ot the network interface's permanent address.  If Reset if FALSE
> > +  then the current station address is changed to the address specified by
> > +  pNew.
> > +
> > +  This routine calls ::Ax88179MacAddressSet to update the MAC address
> > +  in the network adapter.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bReset            Flag used to reset the station address to the
> > +                                network interface's permanent address.
> > +  @param [in] pNew              New station address to be used for the
> network
> > +                                interface.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_StationAddress (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bReset,
> > +  IN EFI_MAC_ADDRESS * pNew
> > +  );
> > +
> > +/**
> > +  This function resets or collects the statistics on a network interface.
> > +  If the size of the statistics table specified by StatisticsSize is not
> > +  big enough for all of the statistics that are collected by the network
> > +  interface, then a partial buffer of statistics is returned in
> > +  StatisticsTable.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bReset            Set to TRUE to reset the statistics for the
> network interface.
> > +  @param [in, out] pStatisticsSize  On input the size, in bytes, of
> StatisticsTable.  On output
> > +                                the size, in bytes, of the resulting table of statistics.
> > +  @param [out] pStatisticsTable A pointer to the
> EFI_NETWORK_STATISTICS structure that
> > +                                conains the statistics.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the
> buffer is too small.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Statistics (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bReset,
> > +  IN OUT UINTN * pStatisticsSize,
> > +  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
> > +  );
> > +
> > +/**
> > +  This function stops a network interface.  This call is only valid
> > +  if the network interface is in the started state.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Stop (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  );
> > +
> > +/**
> > +  This function releases the memory buffers assigned in the Initialize() call.
> > +  Pending transmits and receives are lost, and interrupts are cleared and
> disabled.
> > +  After this call, only Initialize() and Stop() calls may be used.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Shutdown (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  );
> > +
> > +/**
> > +  Send a packet over the network.
> > +
> > +  This function places the packet specified by Header and Buffer on
> > +  the transmit queue.  This function performs a non-blocking transmit
> > +  operation.  When the transmit is complete, the buffer is returned
> > +  via the GetStatus() call.
> > +
> > +  This routine calls ::Ax88179Rx to empty the network adapter of
> > +  receive packets.  The routine then passes the transmit packet
> > +  to the network adapter.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] HeaderSize        The size, in bytes, of the media header to be
> filled in by
> > +                                the Transmit() function.  If HeaderSize is non-zero, then
> > +                                it must be equal to SimpleNetwork->Mode-
> >MediaHeaderSize
> > +                                and DestAddr and Protocol parameters must not be
> NULL.
> > +  @param [in] BufferSize        The size, in bytes, of the entire packet (media
> header and
> > +                                data) to be transmitted through the network interface.
> > +  @param [in] pBuffer           A pointer to the packet (media header
> followed by data) to
> > +                                to be transmitted.  This parameter can not be NULL.  If
> > +                                HeaderSize is zero, then the media header is Buffer must
> > +                                already be filled in by the caller.  If HeaderSize is
> nonzero,
> > +                                then the media header will be filled in by the Transmit()
> > +                                function.
> > +  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize
> is zero, then
> > +                                this parameter is ignored.  If HeaderSize is nonzero and
> > +                                SrcAddr is NULL, then SimpleNetwork->Mode-
> >CurrentAddress
> > +                                is used for the source HW MAC address.
> > +  @param [in] pDestAddr         The destination HW MAC address.  If
> HeaderSize is zero, then
> > +                                this parameter is ignored.
> > +  @param [in] pProtocol         The type of header to build.  If HeaderSize is
> zero, then
> > +                                this parameter is ignored.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_NOT_READY         The network interface is too busy to
> accept this transmit request.
> > +  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too
> small.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Transmit (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN UINTN HeaderSize,
> > +  IN UINTN BufferSize,
> > +  IN VOID * pBuffer,
> > +  IN EFI_MAC_ADDRESS * pSrcAddr,
> > +  IN EFI_MAC_ADDRESS * pDestAddr,
> > +  IN UINT16 * pProtocol
> > +  );
> > +
> > +//------------------------------------------------------------------------------
> > +// Support Routines
> > +//------------------------------------------------------------------------------
> > +
> > +/**
> > +  Get the MAC address
> > +
> > +  This routine calls ::Ax88179UsbCommand to request the MAC
> > +  address from the network adapter.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [out] pMacAddress      Address of a six byte buffer to receive the
> MAC address.
> > +
> > +  @retval EFI_SUCCESS          The MAC address is available.
> > +  @retval other                The MAC address is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179MacAddressGet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  OUT UINT8 * pMacAddress
> > +  );
> > +
> > +
> > +/**
> > +  Clear the multicast hash table
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +
> > +**/
> > +VOID
> > +Ax88179MulticastClear (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +
> > +/**
> > +  Enable a multicast address in the multicast hash table
> > +
> > +  This routine calls ::Ax88179Crc to compute the hash bit for
> > +  this MAC address.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> the MAC address.
> > +
> > +**/
> > +VOID
> > +Ax88179MulticastSet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT8 * pMacAddress
> > +  );
> > +
> > +/**
> > +  Start the link negotiation
> > +
> > +  This routine calls ::Ax88179PhyWrite to start the PHY's link
> > +  negotiation.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +
> > +  @retval EFI_SUCCESS          The link negotiation was started.
> > +  @retval other                Failed to start the link negotiation.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179NegotiateLinkStart (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +
> > +/**
> > +  Complete the negotiation of the PHY link
> > +
> > +  This routine calls ::Ax88179PhyRead to determine if the
> > +  link negotiation is complete.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in, out] pPollCount  Address of number of times this routine
> was polled
> > +  @param [out] pbComplete      Address of boolean to receive complate
> status.
> > +  @param [out] pbLinkUp        Address of boolean to receive link status,
> TRUE=up.
> > +  @param [out] pbHiSpeed       Address of boolean to receive link speed,
> TRUE=100Mbps.
> > +  @param [out] pbFullDuplex    Address of boolean to receive link duplex,
> TRUE=full.
> > +
> > +  @retval EFI_SUCCESS          The MAC address is available.
> > +  @retval other                The MAC address is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179NegotiateLinkComplete (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN OUT UINTN * pPollCount,
> > +  OUT BOOLEAN * pbComplete,
> > +  OUT BOOLEAN * pbLinkUp,
> > +  OUT BOOLEAN * pbHiSpeed,
> > +  OUT BOOLEAN * pbGigaSpeed,
> > +  OUT BOOLEAN * pbFullDuplex
> > +  );
> > +
> > +/**
> > +  Read a register from the PHY
> > +
> > +  This routine calls ::Ax88179UsbCommand to read a PHY register.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] RegisterAddress  Number of the register to read.
> > +  @param [in, out] pPhyData    Address of a buffer to receive the PHY
> register value
> > +
> > +  @retval EFI_SUCCESS          The PHY data is available.
> > +  @retval other                The PHY data is not valid.
> > +
> > +**/
> > +
> > +
> > +/**
> > +  Reset the AX88179
> > +
> > +  This routine uses ::Ax88179UsbCommand to reset the network
> > +  adapter.  This routine also uses ::Ax88179PhyWrite to reset
> > +  the PHY.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +
> > +  @retval EFI_SUCCESS          The MAC address is available.
> > +  @retval other                The MAC address is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179Reset (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +#if 0
> > +/**
> > +  Receive a frame from the network.
> > +
> > +  This routine polls the USB receive interface for a packet.  If a packet
> > +  is available, this routine adds the receive packet to the list of
> > +  pending receive packets.
> > +
> > +  This routine calls ::Ax88179NegotiateLinkComplete to verify
> > +  that the link is up.  This routine also calls ::SN_Reset to
> > +  reset the network adapter when necessary.  Finally this
> > +  routine attempts to receive one or more packets from the
> > +  network adapter.
> > +
> > +  @param [in] pNicDevice  Pointer to the NIC_DEVICE structure
> > +  @param [in] bUpdateLink TRUE = Update link status
> > +
> > +**/
> > +VOID
> > +Ax88179Rx (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN BOOLEAN bUpdateLink
> > +  );
> > +#endif
> > +/**
> > +  Enable or disable the receiver
> > +
> > +  This routine calls ::Ax88179UsbCommand to update the
> > +  receiver state.  This routine also calls ::Ax88179MacAddressSet
> > +  to establish the MAC address for the network adapter.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] RxFilter         Simple network RX filter mask value
> > +
> > +  @retval EFI_SUCCESS          The MAC address was set.
> > +  @retval other                The MAC address was not set.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179RxControl (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT32 RxFilter
> > +  );
> > +
> > +  EFI_STATUS
> > +Ax88179ReloadSrom  (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +
> > +/**
> > +  Read an SROM location
> > +
> > +  This routine calls ::Ax88179UsbCommand to read data from the
> > +  SROM.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] Address          SROM address
> > +  @param [out] pData           Buffer to receive the data
> > +
> > +  @retval EFI_SUCCESS          The read was successful
> > +  @retval other                The read failed
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179SromRead (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT32 Address,
> > +  OUT UINT16 * pData
> > +  );
> > +
> > +
> > +EFI_STATUS
> > +Ax88179EnableSromWrite  (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +
> > +
> > +EFI_STATUS
> > +Ax88179DisableSromWrite  (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179SromWrite (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT32 Address,
> > +  OUT UINT16 * pData
> > +  );
> > +
> > +/**
> > +  Send a command to the USB device.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] pRequest         Pointer to the request structure
> > +  @param [in, out] pBuffer     Data buffer address
> > +
> > +  @retval EFI_SUCCESS          The USB transfer was successful
> > +  @retval other                The USB transfer failed
> > +
> > +**/
> > +
> > +EFI_STATUS
> > +Ax88179UsbCommand (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN USB_DEVICE_REQUEST * pRequest,
> > +  IN OUT VOID * pBuffer
> > +  );
> > +
> > +//------------------------------------------------------------------------------
> > +// EFI Component Name Protocol Support
> > +//------------------------------------------------------------------------------
> > +extern EFI_DRIVER_BINDING_PROTOCOL   gDriverBinding;
> > +extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;  ///<
> Component name protocol declaration
> > +extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2; ///<
> Component name 2 protocol declaration
> > +
> > +/**
> > +  Retrieves a Unicode string that is the user readable name of the driver.
> > +
> > +  This function retrieves the user readable name of a driver in the form of
> a
> > +  Unicode string. If the driver specified by This has a user readable name in
> > +  the language specified by Language, then a pointer to the driver name is
> > +  returned in DriverName, and EFI_SUCCESS is returned. If the driver
> specified
> > +  by This does not support the language specified by Language,
> > +  then EFI_UNSUPPORTED is returned.
> > +
> > +  @param [in] pThis             A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > +                                array indicating the language. This is the
> > +                                language of the driver name that the caller is
> > +                                requesting, and it must match one of the
> > +                                languages specified in SupportedLanguages. The
> > +                                number of languages supported by a driver is up
> > +                                to the driver writer. Language is specified
> > +                                in RFC 3066 or ISO 639-2 language code format.
> > +  @param [out] ppDriverName     A pointer to the Unicode string to return.
> > +                                This Unicode string is the name of the
> > +                                driver specified by This in the language
> > +                                specified by Language.
> > +
> > +  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
> > +                                This and the language specified by Language was
> > +                                returned in DriverName.
> > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > +  @retval EFI_INVALID_PARAMETER DriverName is NULL.
> > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> support
> > +                                the language specified by Language.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +GetDriverName (
> > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > +  IN  CHAR8 * pLanguage,
> > +  OUT CHAR16 ** ppDriverName
> > +  );
> > +
> > +
> > +/**
> > +  Retrieves a Unicode string that is the user readable name of the
> controller
> > +  that is being managed by a driver.
> > +
> > +  This function retrieves the user readable name of the controller specified
> by
> > +  ControllerHandle and ChildHandle in the form of a Unicode string. If the
> > +  driver specified by This has a user readable name in the language
> specified by
> > +  Language, then a pointer to the controller name is returned in
> ControllerName,
> > +  and EFI_SUCCESS is returned.  If the driver specified by This is not
> currently
> > +  managing the controller specified by ControllerHandle and ChildHandle,
> > +  then EFI_UNSUPPORTED is returned.  If the driver specified by This does
> not
> > +  support the language specified by Language, then EFI_UNSUPPORTED is
> returned.
> > +
> > +  @param [in] pThis             A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > +  @param [in] ControllerHandle  The handle of a controller that the driver
> > +                                specified by This is managing.  This handle
> > +                                specifies the controller whose name is to be
> > +                                returned.
> > +  @param [in] ChildHandle       The handle of the child controller to
> retrieve
> > +                                the name of.  This is an optional parameter that
> > +                                may be NULL.  It will be NULL for device
> > +                                drivers.  It will also be NULL for a bus drivers
> > +                                that wish to retrieve the name of the bus
> > +                                controller.  It will not be NULL for a bus
> > +                                driver that wishes to retrieve the name of a
> > +                                child controller.
> > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > +                                array indicating the language.  This is the
> > +                                language of the driver name that the caller is
> > +                                requesting, and it must match one of the
> > +                                languages specified in SupportedLanguages. The
> > +                                number of languages supported by a driver is up
> > +                                to the driver writer. Language is specified in
> > +                                RFC 3066 or ISO 639-2 language code format.
> > +  @param [out] ppControllerName A pointer to the Unicode string to
> return.
> > +                                This Unicode string is the name of the
> > +                                controller specified by ControllerHandle and
> > +                                ChildHandle in the language specified by
> > +                                Language from the point of view of the driver
> > +                                specified by This.
> > +
> > +  @retval EFI_SUCCESS           The Unicode string for the user readable
> name in
> > +                                the language specified by Language for the
> > +                                driver specified by This was returned in
> > +                                DriverName.
> > +  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
> EFI_HANDLE.
> > +  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not
> a valid
> > +                                EFI_HANDLE.
> > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > +  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> > +  @retval EFI_UNSUPPORTED       The driver specified by This is not
> currently
> > +                                managing the controller specified by
> > +                                ControllerHandle and ChildHandle.
> > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> support
> > +                                the language specified by Language.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +GetControllerName (
> > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > +  IN  EFI_HANDLE ControllerHandle,
> > +  IN OPTIONAL EFI_HANDLE ChildHandle,
> > +  IN  CHAR8 * pLanguage,
> > +  OUT CHAR16 ** ppControllerName
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179SetMedium (
> > +  IN NIC_DEVICE * pNicDevice
> > +  );
> > +//-----------------------------------------------------------------------------
> > +
> > +
> > +
> > +
> > +
> > +#define ACCESS_MAC  0x01
> > +#define ACCESS_PHY  0x02
> > +
> > +#define PLSR                0x02
> > +  #define PLSR_USB_FS  0x01
> > +  #define PLSR_USB_HS  0x02
> > +  #define PLSR_USB_SS  0x04
> > +
> > +#define NODE_ID               0x10
> > +
> > +#define RXCTL                 0x0b
> > +  #define RXCTL_PRO         0x0001  ///<  Receive all packets
> > +  #define RXCTL_AMALL       0x0002  ///<  Receive all multicast packets
> > +  #define RXCTL_SEP         0x0004  ///<  Save error packets
> > +  #define RXCTL_AB          0x0008  ///<  Receive broadcast packets
> > +  #define RXCTL_AM          0x0010  ///<  Use multicast destination address
> hash table
> > +  #define RXCTL_AP          0x0020  ///<  Accept physical address from
> Multicast Filter
> > +  #define RXCTL_ARP         0x0040  ///<  Accept runt packet
> > +  #define RXCTL_SO          0x0080  ///<  Start operation
> > +  #define RXCTL_DROPCRCERR  0x0100  ///<  RX header 1 formate
> selection
> > +  #define RXCTL_IPE         0x0200  ///<  RX header 2 formate selection
> > +  #define RXCTL_TXPADCRC    0x0400  ///<  RX header 3 formate selection
> > +  #define RXCTL_LPBK        0x1000  ///<  MAC loop back for diagnostic
> > +
> > +#define MULCATFLTARRY       0x16  ///<  Write the multicast hash table,
> Data: New 8 byte value
> > +
> > +#define MEDIUMSTSMOD          0x22
> > +  #define MEDIUMSTSMOD_GM   0x0001  ///<  Gigabit Mode
> > +  #define MEDIUMSTSMOD_FD   0x0002  ///<  Full duplex
> > +  #define MEDIUMSTSMOD_ONE  0x0004  ///<  Must be one
> > +  #define MEDIUMSTSMOD_ENCK 0x0008  ///<  Add in 04h
> > +  #define MEDIUMSTSMOD_RFC  0x0010  ///<  RX flow control enable
> > +  #define MEDIUMSTSMOD_TFC  0x0020  ///<  TX flow control enable
> > +  #define MEDIUMSTSMOD_JFE  0x0040  ///<  Pause frame enable
> > +  #define MEDIUMSTSMOD_PF   0x0080  ///<  Pause frame enable
> > +  #define MEDIUMSTSMOD_RE   0x0100  ///<  Receive enable
> > +  #define MEDIUMSTSMOD_PS   0x0200  ///<  Port speed 1=100, 0=10
> Mbps
> > +  #define MEDIUMSTSMOD_SBP  0x0800  ///<  Stop back pressure
> > +  #define MEDIUMSTSMOD_SM   0x1000  ///<  Super MAC support
> > +
> > +#define MONITORSTAUS          0x24
> > +  #define  MONITORSTAUS_PMETYPE   0x40
> > +  #define  MONITORSTAUS_PMEPOL    0x20
> > +
> > +#define PHYPWRRSTCTL          0x26
> > +  #define PHYPWRRSTCTL_IPRL     0x20
> > +  #define PHYPWRRSTCTL_OSCDSSEL 0x80
> > +  #define PHYPWRRSTCTL_BZTYPE       0x4
> > +  #define PHYPWRRSTCTL_BZ      0x10
> > +
> > +#define SISSR                 0x28
> > +  #define SISSR_PSEL        0x01
> > +  #define SISSR_ASEL        0x02
> > +
> > +#define RXBINQCTRL            0x2e
> > +  #define RXBINQCTRL_TIMEN  0x01
> > +  #define RXBINQCTRL_IFGEN  0x02
> > +  #define RXBINQCTRL_SIZEN  0x04
> > +
> > +#define RXBINQTIMERL          0x2f
> > +#define RXBINQTIMERH          0x30
> > +#define RXBINQSIZE            0x31
> > +#define RXBINQIFG             0x32
> > +
> > +#define CLKSELECT             0x33
> > +  #define CLKSELECT_ACS       0x02
> > +  #define CLKSELECT_BCS       0x01
> > +
> > +#define PAUSE_WATERLVL_HIGH   0x54
> > +#define PAUSE_WATERLVL_LOW    0x55
> > +
> > +#define RXFREEBUF             0x57
> > +  #define MAX_RXBUF_PAGE    0x067F
> > +
> > +#define PHY_BMCR                        0       ///<  Control register
> > +  #define BMCR_RESET                      0x8000  ///<  1 = Reset the PHY, bit
> clears after reset
> > +  #define BMCR_LOOPBACK                   0x4000  ///<  1 = Loopback enabled
> > +  #define BMCR_AUTONEGOTIATION_ENABLE     0x1000  ///<  1 = Enable
> autonegotiation
> > +  #define BMCR_POWER_DOWN                 0x0800  ///<  1 = Power down
> > +  #define BMCR_ISOLATE                    0x0400  ///<  0 = Isolate PHY
> > +  #define BMCR_RESTART_AUTONEGOTIATION    0x0200  ///<  1 = Restart
> autonegotiation
> > +  #define BMCR_FULL_DUPLEX                0x0100  ///<  Full duplex operation
> > +  #define BMCR_COLLISION_TEST             0x0080  ///<  1 = Collision test
> enabled
> > +  #define BMCR_1000MBPS                   0x40  ///<  Forced mode in
> 1000Mbps
> > +  #define BMCR_100MBPS                    0x2000    ///<  Forced mode in
> 10Mbps
> > +
> > +#define PHY_BMSR                        1       ///<  Status register
> > +  #define BMSR_100BASET4                  0x8000  ///<  1 = 100BASE-T4 mode
> > +  #define BMSR_100BASETX_FDX              0x4000  ///<  1 = 100BASE-TX full
> duplex
> > +  #define BMSR_100BASETX_HDX              0x2000  ///<  1 = 100BASE-TX
> half duplex
> > +  #define BMSR_10BASET_FDX                0x1000  ///<  1 = 10BASE-T full
> duplex
> > +  #define BMSR_10BASET_HDX                0x0800  ///<  1 = 10BASE-T half
> duplex
> > +  #define BMSR_MF                         0x0040  ///<  1 = PHY accepts frames
> with preamble suppressed
> > +  #define BMSR_AUTONEG_CMPLT              0x0020  ///<  1 =
> Autonegotiation complete
> > +  #define BMSR_RF                         0x0010  ///<  1 = Remote fault
> > +  #define BMSR_AUTONEG                    0x0008  ///<  1 = Able to perform
> autonegotiation
> > +  #define BMSR_LINKST                     0x0004  ///<  1 = Link up
> > +  #define BMSR_JABBER_DETECT              0x0002  ///<  1 = jabber condition
> detected
> > +  #define BMSR_EXTENDED_CAPABILITY        0x0001  ///<  1 = Extended
> register capable
> > +
> > +#define PHY_ANAR                        4       ///<  Autonegotiation advertisement
> register
> > +  #define AN_NP                           0x8000  ///<  1 = Next page available
> > +  #define AN_RF                           0x2000  ///<  1 = Remote fault indicated by
> link partner
> > +  #define AN_FCS                          0x0400  ///<  1 = Flow control ability
> > +  #define AN_T4                           0x0200  ///<  1 = 100BASE-T4 support
> > +  #define AN_TX_FDX                       0x0100  ///<  1 = 100BASE-TX Full duplex
> > +  #define AN_TX_HDX                       0x0080  ///<  1 = 100BASE-TX support
> > +  #define AN_10_FDX                       0x0040  ///<  1 = 10BASE-T Full duplex
> > +  #define AN_10_HDX                       0x0020  ///<  1 = 10BASE-T support
> > +  #define AN_CSMA_CD                      0x0001  ///<  1 = IEEE 802.3 CSMA/CD
> support
> > +
> > +#define PHY_ANLPAR                      5       ///<  Autonegotiation link parter
> ability register
> > +
> > +#define PHY_PHYSR                       0x11
> > +  #define PHYSR_SPEED_MASK                0xC000
> > +  #define PHYSR_1000                      0x8000
> > +  #define PHYSR_100                       0x4000
> > +  #define PHYSR_FULLDUP                   0x2000
> > +  #define PHYSR_LINK                      0x400
> > +
> > +EFI_STATUS
> > +Ax88179PhyRead (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT8 RegisterAddress,
> > +  IN OUT UINT16 * pPhyData
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179PhyWrite (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT8 RegisterAddress,
> > +  IN UINT16 PhyData
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179MacRead (
> > +  IN  UINT8 Offset,
> > +  IN  UINT8 Length,
> > +  IN  NIC_DEVICE * pNicDevice,
> > +  IN  OUT  VOID * pData
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179SetIInInterval (
> > +  IN  NIC_DEVICE * pNicDevice,
> > +  IN  UINT8 Offset
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179MacWrite (
> > +  IN  UINT8 Offset,
> > +  IN  UINT8 Length,
> > +  IN  NIC_DEVICE * pNicDevice,
> > +  IN  OUT  VOID * pData
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179MacAddressGet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  OUT UINT8 * pMacAddress
> > +  );
> > +
> > +EFI_STATUS
> > +Ax88179MacAddressSet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  OUT UINT8 * pMacAddress
> > +  );
> > +
> > +BOOLEAN
> > +Ax88179GetLinkStatus (
> > +  IN NIC_DEVICE * pNicDevice
> > +);
> > +
> > +EFI_STATUS
> > +Ax88179BulkIn(
> > +  IN NIC_DEVICE * pNicDevice
> > +);
> > +
> > +
> > +#endif  //  _AX88179_H_
> > diff --git
> a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> > new file mode 100644
> > index 000000000000..7b2db9b74285
> > --- /dev/null
> > +++
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> > @@ -0,0 +1,1026 @@
> > + /** @file
> > +  Implement the interface to the AX88179 Ethernet controller.
> > +
> > +  This module implements the interface to the ASIX AX88179
> > +  USB to Ethernet MAC with integrated 10/100 PHY.  Note that this
> implementation
> > +  only supports the integrated PHY since no other test cases were
> available.
> > +
> > +  Copyright (c) 2011, Intel Corporation
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +**/
> > +
> > +#include "Ax88179.h"
> > +
> > +
> > +/**
> > +  Compute the CRC
> > +
> > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> the MAC address.
> > +
> > +  @returns The CRC-32 value associated with this MAC address
> > +
> > +**/
> > +UINT32
> > +Ax88179Crc (
> > +  IN UINT8 * pMacAddress
> > +  )
> > +{
> > +  UINT32 BitNumber;
> > +  INT32 Carry;
> > +  INT32 Crc;
> > +  UINT32 Data;
> > +  UINT8 * pEnd;
> > +
> > +  //
> > +  //  Walk the MAC address
> > +  //
> > +  Crc = -1;
> > +  pEnd = &pMacAddress[ PXE_HWADDR_LEN_ETHER ];
> > +  while ( pEnd > pMacAddress ) {
> > +    Data = *pMacAddress++;
> > +
> > +
> > +    //
> > +    //  CRC32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 +
> x4 + x2 + x + 1
> > +    //
> > +    //          1 0000 0100 1100 0001 0001 1101 1011 0111
> > +    //
> > +    for ( BitNumber = 0; 8 > BitNumber; BitNumber++ ) {
> > +      Carry = (( Crc >> 31 ) & 1 ) ^ ( Data & 1 );
> > +      Crc <<= 1;
> > +      if ( 0 != Carry ) {
> > +        Crc ^= 0x04c11db7;
> > +      }
> > +      Data >>= 1;
> > +    }
> > +  }
> > +
> > +  //
> > +  //  Return the CRC value
> > +  //
> > +  return (UINT32) Crc;
> > +}
> > +
> > +/**
> > +  Get the MAC address
> > +
> > +  This routine calls ::Ax88179UsbCommand to request the MAC
> > +  address from the network adapter.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [out] pMacAddress      Address of a six byte buffer to receive the
> MAC address.
> > +
> > +  @retval EFI_SUCCESS          The MAC address is available.
> > +  @retval other                The MAC address is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179MacAddressGet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  OUT UINT8 * pMacAddress
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status  = Ax88179MacRead (NODE_ID,
> > +                            PXE_HWADDR_LEN_ETHER,
> > +                            pNicDevice,
> > +                            pMacAddress);
> > +
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Set the MAC address
> > +
> > +  This routine calls ::Ax88179UsbCommand to set the MAC address
> > +  in the network adapter.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> the new MAC address.
> > +
> > +  @retval EFI_SUCCESS          The MAC address was set.
> > +  @retval other                The MAC address was not set.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179MacAddressSet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  OUT UINT8 * pMacAddress
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status  = Ax88179MacWrite (NODE_ID,
> > +                             PXE_HWADDR_LEN_ETHER,
> > +                             pNicDevice,
> > +                             pMacAddress);
> > +
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Clear the multicast hash table
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +
> > +**/
> > +VOID
> > +Ax88179MulticastClear (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  int i = 0;
> > +  //
> > +  // Clear the multicast hash table
> > +  //
> > +
> > +  for ( i = 0 ; i < 8 ; i++ )
> > +      pNicDevice->MulticastHash[i] = 0;
> > +}
> > +/**
> > +  Enable a multicast address in the multicast hash table
> > +
> > +  This routine calls ::Ax88179Crc to compute the hash bit for
> > +  this MAC address.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> the MAC address.
> > +
> > +**/
> > +VOID
> > +Ax88179MulticastSet (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT8 * pMacAddress
> > +  )
> > +{
> > +  UINT32 Crc;
> > +  //
> > +  // Compute the CRC on the destination address
> > +  //
> > +  Crc = Ax88179Crc (pMacAddress) >> 26;
> > +  //
> > +  //  Set the bit corresponding to the destination address
> > +  //
> > +  pNicDevice->MulticastHash [ Crc >> 3 ] |= ( 1<< (Crc& 7));
> > +}
> > +
> > +/**
> > +  Start the link negotiation
> > +
> > +  This routine calls ::Ax88179PhyWrite to start the PHY's link
> > +  negotiation.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +
> > +  @retval EFI_SUCCESS          The link negotiation was started.
> > +  @retval other                Failed to start the link negotiation.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179NegotiateLinkStart (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  UINT16 Control = 0;
> > +  EFI_STATUS Status;
> > +
> > +#if FORCE_100Mbps
> > +  Ax88179PhyRead ( pNicDevice,
> > +                   0x09,
> > +                   &Control );
> > +  Control &= 0xFCFF;
> > +  Ax88179PhyWrite ( pNicDevice, 0x09, Control );
> > +#endif
> > +
> > +  //
> > +  // Set the link speed and duplex
> > +  //
> > +  Control = BMCR_AUTONEGOTIATION_ENABLE
> > +          | BMCR_RESTART_AUTONEGOTIATION;
> > +  if ( pNicDevice->b1000Mbps ) {
> > +    Control |= BMCR_1000MBPS;
> > +  } else if ( pNicDevice->b100Mbps ) {
> > +    Control |= BMCR_100MBPS;
> > +  }
> > +
> > +  if ( pNicDevice->bFullDuplex ) {
> > +    Control |= BMCR_FULL_DUPLEX;
> > +  }
> > +  Status = Ax88179PhyWrite ( pNicDevice, PHY_BMCR, Control );
> > +  if (!EFI_ERROR(Status))
> > +    gBS->Stall(3000000);
> > +  //
> > +  // Return the operation status
> > +  //
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Complete the negotiation of the PHY link
> > +
> > +  This routine calls ::Ax88179PhyRead to determine if the
> > +  link negotiation is complete.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in, out] pPollCount  Address of number of times this routine
> was polled
> > +  @param [out] pbComplete      Address of boolean to receive complate
> status.
> > +  @param [out] pbLinkUp        Address of boolean to receive link status,
> TRUE=up.
> > +  @param [out] pbHiSpeed       Address of boolean to receive link speed,
> TRUE=100Mbps.
> > +  @param [out] pbFullDuplex    Address of boolean to receive link duplex,
> TRUE=full.
> > +
> > +  @retval EFI_SUCCESS          The MAC address is available.
> > +  @retval other                The MAC address is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179NegotiateLinkComplete (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN OUT UINTN * pPollCount,
> > +  OUT BOOLEAN * pbComplete,
> > +  OUT BOOLEAN * pbLinkUp,
> > +  OUT BOOLEAN * pbHiSpeed,
> > +  OUT BOOLEAN * pbGigaSpeed,
> > +  OUT BOOLEAN * pbFullDuplex
> > +  )
> > +{
> > +  UINT16 PhyData;
> > +  EFI_STATUS  Status;
> > +
> > +  //
> > +  //  Determine if the link is up.
> > +  //
> > +  *pbComplete = FALSE;
> > +
> > +  //
> > +  //  Get the link status
> > +  //
> > +  Status = Ax88179PhyRead ( pNicDevice,
> > +                            PHY_PHYSR,
> > +                            &PhyData );
> > +
> > +  if ( !EFI_ERROR ( Status )) {
> > +    *pbLinkUp =  (BOOLEAN)( 0 != ( PhyData & PHYSR_LINK ));
> > +    if (*pbLinkUp) {
> > +      //
> > +      //  Determine if the autonegotiation is complete.
> > +      //
> > +      Status = Ax88179PhyRead ( pNicDevice,
> > +                            PHY_BMSR,
> > +                            &PhyData );
> > +      if ( !EFI_ERROR (Status)) {
> > +          *pbComplete =  (BOOLEAN)( 0 != ( PhyData &
> BMSR_AUTONEG_CMPLT ));
> > +
> > +          if ( 0 != *pbComplete ) {
> > +            //
> > +            //  Get the partners capabilities.
> > +            //
> > +            Status = Ax88179PhyRead ( pNicDevice,
> > +                                      PHY_PHYSR,
> > +                                      &PhyData );
> > +            if ( !EFI_ERROR ( Status )) {
> > +              //
> > +              //  Autonegotiation is complete
> > +              //  Determine the link speed.
> > +              //
> > +              *pbGigaSpeed = (BOOLEAN) (( PhyData & PHYSR_SPEED_MASK )
> == PHYSR_1000 );
> > +              *pbHiSpeed = (BOOLEAN)(( PhyData & PHYSR_SPEED_MASK ) ==
> PHYSR_100 );
> > +
> > +              //
> > +              //  Determine the link duplex.
> > +              //
> > +              *pbFullDuplex = (BOOLEAN)( (PhyData & PHYSR_FULLDUP) ==
> PHYSR_FULLDUP);
> > +          }
> > +        }
> > +      }
> > +    }
> > +  }
> > +
> > +
> > +  //
> > +  // Return the operation status
> > +  //
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  Read a register from the PHY
> > +
> > +  This routine calls ::Ax88179UsbCommand to read a PHY register.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] RegisterAddress  Number of the register to read.
> > +  @param [in, out] pPhyData    Address of a buffer to receive the PHY
> register value
> > +
> > +  @retval EFI_SUCCESS          The PHY data is available.
> > +  @retval other                The PHY data is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179PhyRead (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT8 RegisterAddress,
> > +  IN OUT UINT16 * pPhyData
> > +  )
> > +{
> > +  USB_DEVICE_REQUEST SetupMsg;
> > +  EFI_STATUS Status;
> > +
> > +  //
> > +  //  Read the PHY register address.
> > +  //
> > +  SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
> > +                       | USB_REQ_TYPE_VENDOR
> > +                       | USB_TARGET_DEVICE;
> > +  SetupMsg.Request = ACCESS_PHY;
> > +  SetupMsg.Value = pNicDevice->PhyId;
> > +  SetupMsg.Index = RegisterAddress;
> > +  SetupMsg.Length = sizeof ( *pPhyData );
> > +  Status = Ax88179UsbCommand ( pNicDevice,
> > +                               &SetupMsg,
> > +                               pPhyData );
> > +
> > +  //
> > +  //  Return the operation status.
> > +  //
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  Write to a PHY register
> > +
> > +  This routine calls ::Ax88179UsbCommand to write a PHY register.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] RegisterAddress  Number of the register to read.
> > +  @param [in] PhyData          Address of a buffer to receive the PHY
> register value
> > +
> > +  @retval EFI_SUCCESS          The PHY data was written.
> > +  @retval other                Failed to wwrite the PHY register.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179PhyWrite (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT8 RegisterAddress,
> > +  IN UINT16 PhyData
> > +  )
> > +{
> > +  USB_DEVICE_REQUEST SetupMsg;
> > +  EFI_STATUS Status;
> > +
> > +  //
> > +  //  Write the PHY register
> > +  //
> > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > +                       | USB_TARGET_DEVICE;
> > +  SetupMsg.Request = ACCESS_PHY;
> > +  SetupMsg.Value = pNicDevice->PhyId;
> > +  SetupMsg.Index = RegisterAddress;
> > +  SetupMsg.Length = sizeof ( PhyData );
> > +  Status = Ax88179UsbCommand ( pNicDevice,
> > +                               &SetupMsg,
> > +                               &PhyData );
> > +  //
> > +  //  Return the operation status.
> > +  //
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  Reset the AX88179
> > +
> > +  This routine uses ::Ax88179UsbCommand to reset the network
> > +  adapter.  This routine also uses ::Ax88179PhyWrite to reset
> > +  the PHY.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +
> > +  @retval EFI_SUCCESS          The MAC address is available.
> > +  @retval other                The MAC address is not valid.
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179Reset (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +  UINT16  val;
> > +  UINT8 val8;
> > +
> > +  Status = Ax88179SetIInInterval(pNicDevice, 0xff);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val8 = 0;
> > +  Status  = Ax88179MacRead (PLSR,
> > +                            sizeof(val8),
> > +                            pNicDevice,
> > +                            &val8);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  if (val8 & PLSR_USB_SS)
> > +    pNicDevice->usbMaxPktSize = 1024;
> > +  else
> > +    pNicDevice->usbMaxPktSize = 512;
> > +
> > +  val = 0;
> > +  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> > +                             sizeof (val),
> > +                             pNicDevice,
> > +                             &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  gBS->Stall ( 10000 );
> > +
> > +  val =  PHYPWRRSTCTL_IPRL;
> > +  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> > +                             sizeof (val),
> > +                             pNicDevice,
> > +                             &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  gBS->Stall ( 200000 );
> > +
> > +  val = CLKSELECT_BCS | CLKSELECT_ACS;
> > +  Status = Ax88179MacWrite ( CLKSELECT,
> > +                             1,
> > +                             pNicDevice,
> > +                             &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  gBS->Stall ( 100000 );
> > +
> > +  val = 0x52;
> > +  Status = Ax88179MacWrite ( PAUSE_WATERLVL_HIGH,
> > +                             1,
> > +                             pNicDevice,
> > +                             &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val = 0x34;
> > +  Status = Ax88179MacWrite ( PAUSE_WATERLVL_LOW,
> > +                             1,
> > +                             pNicDevice,
> > +                             &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val = RXBINQCTRL_TIMEN | RXBINQCTRL_IFGEN | RXBINQCTRL_SIZEN;
> > +
> > +  Status =  Ax88179MacWrite ( RXBINQCTRL,
> > +                              0x01,
> > +                              pNicDevice,
> > +                              &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val = 0;
> > +  Status =  Ax88179MacWrite ( RXBINQTIMERL,
> > +                              0x01,
> > +                              pNicDevice,
> > +                              &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val = 0;
> > +  Status =  Ax88179MacWrite ( RXBINQTIMERH,
> > +                              0x01,
> > +                              pNicDevice,
> > +                              &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val = 12; //AX88179_BULKIN_SIZE_INK - 1;
> > +  Status =  Ax88179MacWrite ( RXBINQSIZE,
> > +                              0x01,
> > +                              pNicDevice,
> > +                              &val);
> > +
> > +  if (EFI_ERROR(Status)) goto err;
> > +
> > +  val = 0x0F;
> > +  Status =  Ax88179MacWrite ( RXBINQIFG,
> > +                              0x01,
> > +                              pNicDevice,
> > +                              &val);
> > +
> > +err:
> > +  return Status;
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179RxControl (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT32 RxFilter
> > +  )
> > +{
> > +  UINT16 MediumStatus;
> > +  UINT16 RxControl = 0;
> > +  EFI_STATUS Status = EFI_SUCCESS;
> > +  //
> > +  // Enable the receiver if something is to be received
> > +  //
> > +  if ( 0 != RxFilter ) {
> > +    //
> > +    //  Enable the receiver
> > +    //
> > +    Status  = Ax88179MacRead (MEDIUMSTSMOD,
> > +                              sizeof ( MediumStatus ),
> > +                              pNicDevice,
> > +                              &MediumStatus);
> > +
> > +    if ( !EFI_ERROR ( Status ) && pNicDevice->CurMediumStatus !=
> MediumStatus) {
> > +        MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
> > +        if ( pNicDevice->bFullDuplex ) {
> > +          MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC |
> MEDIUMSTSMOD_FD;
> > +        } else {
> > +          MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC
> | MEDIUMSTSMOD_FD);
> > +        }
> > +        if ( pNicDevice->b1000Mbps ) {
> > +          MediumStatus |= MEDIUMSTSMOD_GM;
> > +          MediumStatus |= MEDIUMSTSMOD_ENCK;
> > +          MediumStatus &= ~MEDIUMSTSMOD_PS;
> > +        } else {
> > +          MediumStatus &= ~MEDIUMSTSMOD_GM;
> > +          MediumStatus &= ~MEDIUMSTSMOD_ENCK;
> > +          if ( pNicDevice->b100Mbps ) {
> > +            MediumStatus |= MEDIUMSTSMOD_PS;
> > +          }  else {
> > +            MediumStatus &= ~MEDIUMSTSMOD_PS;
> > +          }
> > +        }
> > +        Status  = Ax88179MacWrite (MEDIUMSTSMOD,
> > +                                   sizeof ( MediumStatus ),
> > +                                   pNicDevice,
> > +                                   &MediumStatus);
> > +        if ( !EFI_ERROR ( Status ))
> > +          pNicDevice->CurMediumStatus = MediumStatus;
> > +    }
> > +  }
> > +
> > +  RxControl = RXCTL_SO | RXCTL_IPE;
> > +
> > +  //
> > +  //  Enable multicast if requested
> > +  //
> > +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
> > +    RxControl |= RXCTL_AM;
> > +    //
> > +    //  Update the multicast hash table
> > +    //
> > +    Status  = Ax88179MacWrite (MULCATFLTARRY,
> > +                               8,
> > +                               pNicDevice,
> > +                               &pNicDevice->MulticastHash );
> > +  }
> > +
> > +  //
> > +  //  Enable all multicast if requested
> > +  //
> > +  if ( 0 != ( RxFilter &
> EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST )) {
> > +    RxControl |= RXCTL_AMALL;
> > +  }
> > +  //
> > +  //  Enable broadcast if requested
> > +  //
> > +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST )) {
> > +    RxControl |= RXCTL_AB;
> > +  }
> > +
> > +  //
> > +  //  Enable promiscuous mode if requested
> > +  //
> > +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS )) {
> > +    RxControl |= RXCTL_PRO;
> > +  }
> > +
> > +  //
> > +  //  Update the receiver control
> > +  //
> > +  if (pNicDevice->CurRxControl != RxControl) {
> > +    Status  = Ax88179MacWrite (RXCTL,
> > +                               0x02,
> > +                               pNicDevice,
> > +                               &RxControl);
> > +    if ( !EFI_ERROR ( Status ))
> > +      pNicDevice->CurRxControl = RxControl;
> > +  }
> > +
> > +  //
> > +  // Return the operation status
> > +  //
> > +  return Status;
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179ReloadSrom  (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status = EFI_UNSUPPORTED;
> > +  return Status;
> > +
> > +}
> > +
> > +/**
> > +  Read an SROM location
> > +
> > +  This routine calls ::Ax88179UsbCommand to read data from the
> > +  SROM.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] Address          SROM address
> > +  @param [out] pData           Buffer to receive the data
> > +
> > +  @retval EFI_SUCCESS          The read was successful
> > +  @retval other                The read failed
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179SromRead (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT32 Address,
> > +  OUT UINT16 * pData
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status = EFI_UNSUPPORTED;
> > +  return Status;
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179EnableSromWrite  (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status = EFI_UNSUPPORTED;
> > +  return Status;
> > +}
> > +
> > +
> > +EFI_STATUS
> > +Ax88179DisableSromWrite  (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status = EFI_UNSUPPORTED;
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Write an SROM location
> > +
> > +  This routine calls ::Ax88179UsbCommand to write data from the
> > +  SROM.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] Address          SROM address
> > +  @param [out] pData           Buffer of data to write
> > +
> > +  @retval EFI_SUCCESS          The write was successful
> > +  @retval other                The write failed
> > +
> > +**/
> > +EFI_STATUS
> > +Ax88179SromWrite (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN UINT32 Address,
> > +  IN UINT16 * pData
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +  Status = EFI_UNSUPPORTED;
> > +  return Status;
> > +}
> > +
> > +
> > +
> > +/**
> > +  Send a command to the USB device.
> > +
> > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > +  @param [in] pRequest         Pointer to the request structure
> > +  @param [in, out] pBuffer     Data buffer address
> > +
> > +  @retval EFI_SUCCESS          The USB transfer was successful
> > +  @retval other                The USB transfer failed
> > +
> > +**/
> > +
> > +EFI_STATUS
> > +Ax88179UsbCommand (
> > +  IN NIC_DEVICE * pNicDevice,
> > +  IN USB_DEVICE_REQUEST * pRequest,
> > +  IN OUT VOID * pBuffer
> > +  )
> > +{
> > +
> > +  EFI_USB_DATA_DIRECTION Direction;
> > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > +  EFI_STATUS Status = EFI_TIMEOUT;
> > +  UINT32 CmdStatus = EFI_USB_NOERROR;
> > +  int i;
> > +  //
> > +  // Determine the transfer direction
> > +  //
> > +  Direction = EfiUsbNoData;
> > +  if ( 0 != pRequest->Length ) {
> > +    Direction = ( 0 != ( pRequest->RequestType & USB_ENDPOINT_DIR_IN ))
> > +                        ? EfiUsbDataIn : EfiUsbDataOut;
> > +  }
> > +
> > +  //
> > +  // Issue the command
> > +  //
> > +  pUsbIo = pNicDevice->pUsbIo;
> > +
> > +  for ( i = 0 ; i < 3 && EFI_TIMEOUT == Status; i++) {
> > +    Status = pUsbIo->UsbControlTransfer ( pUsbIo,
> > +                                        pRequest,
> > +                                        Direction,
> > +                                        USB_BUS_TIMEOUT,
> > +                                        pBuffer,
> > +                                        pRequest->Length,
> > +                                        &CmdStatus );
> > +  }
> > +  //
> > +  // Determine the operation status
> > +  //
> > +  if (EFI_ERROR(Status) || EFI_ERROR(CmdStatus))
> > +    Status = EFI_DEVICE_ERROR;
> > +  //
> > +  // Return the operation status
> > +  //
> > +  return Status;
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179MacRead (
> > +  IN  UINT8 Offset,
> > +  IN  UINT8 Length,
> > +  IN  NIC_DEVICE * pNicDevice,
> > +  IN  OUT  VOID * pData
> > +  )
> > +{
> > +
> > +  EFI_STATUS Status;
> > +  USB_DEVICE_REQUEST SetupMsg;
> > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > +                       | USB_TARGET_DEVICE
> > +                       | USB_ENDPOINT_DIR_IN;
> > +
> > +  SetupMsg.Request = ACCESS_MAC;
> > +  SetupMsg.Value  = Offset;
> > +  SetupMsg.Index  = Length;
> > +  SetupMsg.Length = SetupMsg.Index;
> > +
> > +  Status = Ax88179UsbCommand ( pNicDevice,
> > +                               &SetupMsg,
> > +                               pData );
> > +
> > +  return Status;
> > +
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179MacWrite (
> > +  IN  UINT8 Offset,
> > +  IN  UINT8 Length,
> > +  IN  NIC_DEVICE * pNicDevice,
> > +  IN  OUT  VOID * pData
> > +  )
> > +{
> > +
> > +  EFI_STATUS Status;
> > +  USB_DEVICE_REQUEST SetupMsg;
> > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > +                       | USB_TARGET_DEVICE;
> > +
> > +  SetupMsg.Request = ACCESS_MAC;
> > +  SetupMsg.Value  = Offset;
> > +  SetupMsg.Index  = Length;
> > +  SetupMsg.Length = SetupMsg.Index;
> > +
> > +  Status = Ax88179UsbCommand ( pNicDevice,
> > +                               &SetupMsg,
> > +                               pData );
> > +
> > +  return Status;
> > +
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179SetIInInterval (
> > +  IN  NIC_DEVICE * pNicDevice,
> > +  IN  UINT8 Interval
> > +  )
> > +{
> > +
> > +  EFI_STATUS Status;
> > +  USB_DEVICE_REQUEST SetupMsg;
> > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > +                       | USB_TARGET_DEVICE;
> > +
> > +  SetupMsg.Request = 0x91;
> > +  SetupMsg.Value  = Interval;
> > +  SetupMsg.Index  = 0;
> > +  SetupMsg.Length = 0;
> > +
> > +  Status = Ax88179UsbCommand ( pNicDevice,
> > +                               &SetupMsg,
> > +                               NULL );
> > +
> > +  return Status;
> > +
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179SetMedium (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  UINT16 MediumStatus;
> > +  EFI_STATUS Status;
> > +
> > +  MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
> > +  if ( pNicDevice->bFullDuplex ) {
> > +    MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC |
> MEDIUMSTSMOD_FD;
> > +  } else {
> > +    MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC |
> MEDIUMSTSMOD_FD);
> > +  }
> > +  if ( pNicDevice->b1000Mbps ) {
> > +    MediumStatus |= MEDIUMSTSMOD_GM;
> > +    MediumStatus &= ~MEDIUMSTSMOD_PS;
> > +  } else {
> > +    MediumStatus &= ~MEDIUMSTSMOD_GM;
> > +    if ( pNicDevice->b100Mbps ) {
> > +      MediumStatus |= MEDIUMSTSMOD_PS;
> > +    } else {
> > +      MediumStatus &= ~MEDIUMSTSMOD_PS;
> > +    }
> > +  }
> > +  Status  = Ax88179MacWrite (MEDIUMSTSMOD,
> > +                             sizeof ( MediumStatus ),
> > +                             pNicDevice,
> > +                             &MediumStatus);
> > +  if ( !EFI_ERROR ( Status ))
> > +  pNicDevice->CurMediumStatus = MediumStatus;
> > +
> > +  return Status;
> > +}
> > +
> > +
> > +BOOLEAN
> > +Ax88179GetLinkStatus (
> > +  IN NIC_DEVICE * pNicDevice
> > +)
> > +{
> > +  UINT32 CmdStatus;
> > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > +  UINT64    IntData = 0;
> > +  UINTN     IntDataLeng = 8;
> > +  EFI_STATUS Status;
> > +
> > +  //
> > +  // Issue the command
> > +  //
> > +  pUsbIo = pNicDevice->pUsbIo;
> > +  Status = pUsbIo->UsbSyncInterruptTransfer( pUsbIo,
> > +                                        USB_ENDPOINT_DIR_IN | INTERRUPT_ENDPOINT,
> > +                                        &IntData,
> > +                                        &IntDataLeng,
> > +                                        USB_BUS_TIMEOUT,
> > +                                        &CmdStatus );
> > +
> > +  if ( EFI_ERROR(Status) || EFI_ERROR(CmdStatus) || 0 == IntDataLeng)
> > +    return FALSE;
> > +
> > +  return (IntData & 0x10000)? TRUE : FALSE;
> > +
> > +}
> > +
> > +EFI_STATUS
> > +Ax88179BulkIn(
> > +  IN NIC_DEVICE * pNicDevice
> > +)
> > +{
> > +  int i;
> > +  UINT16  val;
> > +  UINTN LengthInBytes = 0;
> > +  UINTN TMP_LENG = AX88179_MAX_BULKIN_SIZE;
> > +  UINTN CURBufSize = AX88179_MAX_BULKIN_SIZE;
> > +  UINTN PREBufSize = 0;
> > +  EFI_STATUS Status = EFI_NOT_READY;
> > +  EFI_USB_IO_PROTOCOL *pUsbIo;
> > +  UINT32 TransferStatus;
> > +
> > +  pNicDevice->SkipRXCnt = 0;
> > +
> > +  pUsbIo = pNicDevice->pUsbIo;
> > +  for ( i = 0 ; i < (AX88179_MAX_BULKIN_SIZE / 512) && pUsbIo != NULL;
> i++) {
> > +    VOID* tmpAddr = 0;
> > +
> > +    if (pNicDevice->bSetZeroLen) {
> > +      val =  PHYPWRRSTCTL_IPRL | PHYPWRRSTCTL_BZ;
> > +      Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> > +                                 sizeof (val),
> > +                                 pNicDevice,
> > +                                 &val);
> > +      if (EFI_ERROR(Status)) {
> > +        LengthInBytes = 0;
> > +        Status = EFI_NOT_READY;
> > +        goto no_pkt;
> > +      }
> > +      pNicDevice->bSetZeroLen = FALSE;
> > +    }
> > +    tmpAddr = (VOID*) &pNicDevice->pBulkInbuf[LengthInBytes];
> > +
> > +    Status =  EFI_NOT_READY;
> > +    Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
> > +                          USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
> > +                          tmpAddr,
> > +                          &TMP_LENG,
> > +                          BULKIN_TIMEOUT,
> > +                          &TransferStatus );
> > +
> > +    if (( !EFI_ERROR ( Status )) && ( !EFI_ERROR ( TransferStatus )) &&
> TMP_LENG != 0) {
> > +      LengthInBytes += TMP_LENG;
> > +      if ((TMP_LENG % pNicDevice->usbMaxPktSize) != 0) {
> > +        goto done;
> > +      }
> > +      CURBufSize = CURBufSize - TMP_LENG;
> > +      TMP_LENG = CURBufSize;
> > +      pNicDevice->bSetZeroLen = TRUE;
> > +    } else if (( !EFI_ERROR ( Status )) &&
> > +               ( !EFI_ERROR ( TransferStatus )) &&
> > +               ( TMP_LENG == 0) &&
> > +               LengthInBytes) {
> > +      if (PREBufSize == CURBufSize) {
> > +        goto done;
> > +      }
> > +      TMP_LENG = CURBufSize;
> > +      PREBufSize = CURBufSize;
> > +      pNicDevice->bSetZeroLen = TRUE;
> > +    } else if (( !EFI_ERROR ( Status )) &&
> > +               ( !EFI_ERROR ( TransferStatus )) &&
> > +               ( TMP_LENG == 0)) {
> > +      pNicDevice->bSetZeroLen = TRUE;
> > +      LengthInBytes = 0;
> > +      Status = EFI_NOT_READY;
> > +      goto done;
> > +    } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT ==
> TransferStatus) {
> > +      pNicDevice->bSetZeroLen = TRUE;
> > +      LengthInBytes = 0;
> > +      Status = EFI_NOT_READY;
> > +      goto done;
> > +    } else {
> > +      pNicDevice->bSetZeroLen = TRUE;
> > +      LengthInBytes = 0;
> > +      Status = EFI_NOT_READY;
> > +      goto done;
> > +    }
> > +  }
> > +
> > +done:
> > +  if (LengthInBytes != 0) {
> > +    UINT16 tmplen = 0;
> > +    UINT16 tmpPktCnt = 0;
> > +
> > +    tmpPktCnt = *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes -
> 4));
> > +    tmplen =  *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2));
> > +
> > +    if (((UINTN)(((tmpPktCnt * 4 + 4 + 7) & 0xfff8) + tmplen)) ==
> LengthInBytes) {
> > +      pNicDevice->PktCnt = tmpPktCnt;
> > +      pNicDevice->pCurPktHdrOff = pNicDevice->pBulkInbuf + tmplen;
> > +      pNicDevice->pCurPktOff = pNicDevice->pBulkInbuf;
> > +      *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes - 4)) = 0;
> > +      *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2)) = 0;
> > +      Status = EFI_SUCCESS;
> > +    } else {
> > +      Status = EFI_NOT_READY;
> > +    }
> > +  } else {
> > +    Status = EFI_NOT_READY;
> > +  }
> > +no_pkt:
> > +   return Status;
> > +}
> > diff --git
> a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNa
> me.c
> >
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNa
> me.c
> > new file mode 100644
> > index 000000000000..bb7ea146be02
> > --- /dev/null
> > +++
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNa
> me.c
> > @@ -0,0 +1,290 @@
> > +/** @file
> > +  UEFI Component Name(2) protocol implementation.
> > +
> > +  Copyright (c) 2011, Intel Corporation. All rights reserved.
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +**/
> > +
> > +#include "Ax88179.h"
> > +
> > +/**
> > +  EFI Component Name Protocol declaration
> > +**/
> > +GLOBAL_REMOVE_IF_UNREFERENCED
> EFI_COMPONENT_NAME_PROTOCOL  gComponentName = {
> > +  GetDriverName,
> > +  GetControllerName,
> > +  "eng"
> > +};
> > +
> > +/**
> > +  EFI Component Name 2 Protocol declaration
> > +**/
> > +GLOBAL_REMOVE_IF_UNREFERENCED
> EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
> > +  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) GetDriverName,
> > +  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)
> GetControllerName,
> > +  "en"
> > +};
> > +
> > +
> > +/**
> > +  Driver name table declaration
> > +**/
> > +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> > +mDriverNameTable[] = {
> > +  {"eng;en", L"ASIX AX88179 Ethernet Driver 2.9.0"},
> > +  {NULL,  NULL}
> > +};
> > +
> > +/**
> > +  Controller name table declaration
> > +**/
> > +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> > +mControllerNameTable[] = {
> > +  {"eng;en", L"AX88179 USB3.0 Gigabit Ethernet Controller"},
> > +  {NULL,  NULL}
> > +};
> > +
> > +/**
> > +  Retrieves a Unicode string that is the user readable name of the driver.
> > +
> > +  This function retrieves the user readable name of a driver in the form of
> a
> > +  Unicode string. If the driver specified by This has a user readable name in
> > +  the language specified by Language, then a pointer to the driver name is
> > +  returned in DriverName, and EFI_SUCCESS is returned. If the driver
> specified
> > +  by This does not support the language specified by Language,
> > +  then EFI_UNSUPPORTED is returned.
> > +
> > +  @param [in] pThis             A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > +                                array indicating the language. This is the
> > +                                language of the driver name that the caller is
> > +                                requesting, and it must match one of the
> > +                                languages specified in SupportedLanguages. The
> > +                                number of languages supported by a driver is up
> > +                                to the driver writer. Language is specified
> > +                                in RFC 3066 or ISO 639-2 language code format.
> > +  @param [out] ppDriverName     A pointer to the Unicode string to return.
> > +                                This Unicode string is the name of the
> > +                                driver specified by This in the language
> > +                                specified by Language.
> > +
> > +  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
> > +                                This and the language specified by Language was
> > +                                returned in DriverName.
> > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > +  @retval EFI_INVALID_PARAMETER DriverName is NULL.
> > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> support
> > +                                the language specified by Language.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +GetDriverName (
> > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > +  IN  CHAR8 * pLanguage,
> > +  OUT CHAR16 ** ppDriverName
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +
> > +
> > +  Status = LookupUnicodeString2 (
> > +             pLanguage,
> > +             pThis->SupportedLanguages,
> > +             mDriverNameTable,
> > +             ppDriverName,
> > +             (BOOLEAN)(pThis == &gComponentName)
> > +             );
> > +
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Retrieves a Unicode string that is the user readable name of the
> controller
> > +  that is being managed by a driver.
> > +
> > +  This function retrieves the user readable name of the controller specified
> by
> > +  ControllerHandle and ChildHandle in the form of a Unicode string. If the
> > +  driver specified by This has a user readable name in the language
> specified by
> > +  Language, then a pointer to the controller name is returned in
> ControllerName,
> > +  and EFI_SUCCESS is returned.  If the driver specified by This is not
> currently
> > +  managing the controller specified by ControllerHandle and ChildHandle,
> > +  then EFI_UNSUPPORTED is returned.  If the driver specified by This does
> not
> > +  support the language specified by Language, then EFI_UNSUPPORTED is
> returned.
> > +
> > +  @param [in] pThis             A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > +  @param [in] ControllerHandle  The handle of a controller that the driver
> > +                                specified by This is managing.  This handle
> > +                                specifies the controller whose name is to be
> > +                                returned.
> > +  @param [in] ChildHandle       The handle of the child controller to
> retrieve
> > +                                the name of.  This is an optional parameter that
> > +                                may be NULL.  It will be NULL for device
> > +                                drivers.  It will also be NULL for a bus drivers
> > +                                that wish to retrieve the name of the bus
> > +                                controller.  It will not be NULL for a bus
> > +                                driver that wishes to retrieve the name of a
> > +                                child controller.
> > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > +                                array indicating the language.  This is the
> > +                                language of the driver name that the caller is
> > +                                requesting, and it must match one of the
> > +                                languages specified in SupportedLanguages. The
> > +                                number of languages supported by a driver is up
> > +                                to the driver writer. Language is specified in
> > +                                RFC 3066 or ISO 639-2 language code format.
> > +  @param [out] ppControllerName A pointer to the Unicode string to
> return.
> > +                                This Unicode string is the name of the
> > +                                controller specified by ControllerHandle and
> > +                                ChildHandle in the language specified by
> > +                                Language from the point of view of the driver
> > +                                specified by This.
> > +
> > +  @retval EFI_SUCCESS           The Unicode string for the user readable
> name in
> > +                                the language specified by Language for the
> > +                                driver specified by This was returned in
> > +                                DriverName.
> > +  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
> EFI_HANDLE.
> > +  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not
> a valid
> > +                                EFI_HANDLE.
> > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > +  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> > +  @retval EFI_UNSUPPORTED       The driver specified by This is not
> currently
> > +                                managing the controller specified by
> > +                                ControllerHandle and ChildHandle.
> > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> support
> > +                                the language specified by Language.
> > +
> > +**/
> > +
> > +
> > +
> > +#if PASS_SCT
> > +EFI_STATUS
> > +EFIAPI
> > +GetControllerName (
> > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > +  IN  EFI_HANDLE ControllerHandle,
> > +  IN OPTIONAL EFI_HANDLE ChildHandle,
> > +  IN  CHAR8 * pLanguage,
> > +  OUT CHAR16 ** ppControllerName
> > +  )
> > +{
> > +
> > +  EFI_STATUS                  Status;
> > +  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
> > +
> > +  //
> > +  // This is a device driver, so ChildHandle must be NULL.
> > +  //
> > +  if (ChildHandle != NULL) {
> > +    return EFI_UNSUPPORTED;
> > +  }
> > +
> > +  //
> > +  // Check Controller's handle
> > +  //
> > +  Status = gBS->OpenProtocol (
> > +                  ControllerHandle,
> > +                  &gEfiUsbIoProtocolGuid,
> > +                  (VOID **) &UsbIoProtocol,
> > +                  gDriverBinding.DriverBindingHandle,
> > +                  ControllerHandle,
> > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > +                  );
> > +  if (!EFI_ERROR (Status)) {
> > +    gBS->CloseProtocol (
> > +           ControllerHandle,
> > +           &gEfiUsbIoProtocolGuid,
> > +           gDriverBinding.DriverBindingHandle,
> > +           ControllerHandle
> > +           );
> > +    return EFI_UNSUPPORTED;
> > +  }
> > +
> > +  if (Status != EFI_ALREADY_STARTED) {
> > +    return EFI_UNSUPPORTED;
> > +  }
> > +
> > +  Status =  LookupUnicodeString2 (
> > +           pLanguage,
> > +            pThis->SupportedLanguages,
> > +           mControllerNameTable,
> > +           ppControllerName,
> > +           (BOOLEAN)(pThis == &gComponentName)
> > +           );
> > +
> > +  return  Status;
> > +}
> > +#else
> > +
> > +EFI_STATUS
> > +EFIAPI
> > +GetControllerName (
> > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > +  IN  EFI_HANDLE ControllerHandle,
> > +  IN OPTIONAL EFI_HANDLE ChildHandle,
> > +  IN  CHAR8 * pLanguage,
> > +  OUT CHAR16 ** ppControllerName
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
> > +  EFI_USB_DEVICE_DESCRIPTOR Device;
> > +
> > +  //
> > +  //  Connect to the USB stack
> > +  //
> > +  Status = gBS->OpenProtocol (
> > +                  ControllerHandle,
> > +                  &gEfiUsbIoProtocolGuid,
> > +                  (VOID **) &UsbIoProtocol,
> > +                  gDriverBinding.DriverBindingHandle,
> > +                  ControllerHandle,
> > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > +                  );
> > +
> > +
> > +  if (!EFI_ERROR ( Status )) {
> > +      Status = UsbIoProtocol->UsbGetDeviceDescriptor ( UsbIoProtocol,
> &Device );
> > +      if (EFI_ERROR(Status)) {
> > +        Status = EFI_UNSUPPORTED;
> > +      } else {
> > +          //
> > +          //  Validate the adapter
> > +          //
> > +          if (( VENDOR_ID == Device.IdVendor )
> > +            && ( PRODUCT_ID == Device.IdProduct )) {
> > +            *ppControllerName = L"AX88179 USB3.0 Gigabit Ethernet
> Controller";
> > +            Status = EFI_SUCCESS;
> > +          } else if (( VENDOR_ID == Device.IdVendor )
> > +            && ( PRODUCT_ID_178A == Device.IdProduct )) {
> > +            *ppControllerName = L"AX88178A USB2.0 Gigabit Ethernet
> Controller";
> > +            Status = EFI_SUCCESS;
> > +          } else {
> > +            Status = EFI_UNSUPPORTED;
> > +          }
> > +
> > +      }
> > +
> > +      gBS->CloseProtocol (
> > +               ControllerHandle,
> > +               &gEfiUsbIoProtocolGuid,
> > +               gDriverBinding.DriverBindingHandle,
> > +               ControllerHandle
> > +               );
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +  if (Status != EFI_SUCCESS) {
> > +    *ppControllerName = L"AX88179_178A Gigabit Ethernet Controller";
> > +        Status = EFI_SUCCESS;
> > +  }
> > +  return Status;
> > +}
> > +
> > +#endif
> > diff --git
> a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> >
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> > new file mode 100644
> > index 000000000000..826a539e3f34
> > --- /dev/null
> > +++
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> > @@ -0,0 +1,620 @@
> > +/** @file
> > +  Implement the driver binding protocol for Asix AX88179 Ethernet driver.
> > +
> > +  Copyright (c) 2011, Intel Corporation
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +**/
> > +
> > +#include "Ax88179.h"
> > +
> > +/**
> > +  Verify the controller type
> > +
> > +  @param [in] pThis                Protocol instance pointer.
> > +  @param [in] Controller           Handle of device to test.
> > +  @param [in] pRemainingDevicePath Not used.
> > +
> > +  @retval EFI_SUCCESS          This driver supports this device.
> > +  @retval other                This driver does not support this device.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +DriverSupported (
> > +  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
> > +  IN EFI_HANDLE Controller,
> > +  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
> > +  )
> > +{
> > +  EFI_USB_DEVICE_DESCRIPTOR Device;
> > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > +  EFI_STATUS Status;
> > +
> > +  //
> > +  //  Connect to the USB stack
> > +  //
> > +  Status = gBS->OpenProtocol (
> > +                  Controller,
> > +                  &gEfiUsbIoProtocolGuid,
> > +                  (VOID **) &pUsbIo,
> > +                  pThis->DriverBindingHandle,
> > +                  Controller,
> > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > +                  );
> > +  if (!EFI_ERROR ( Status )) {
> > +
> > +    //
> > +    //  Get the interface descriptor to check the USB class and find a
> transport
> > +    //  protocol handler.
> > +    //
> > +    Status = pUsbIo->UsbGetDeviceDescriptor ( pUsbIo, &Device );
> > +    if (EFI_ERROR(Status)) {
> > +      Status = EFI_UNSUPPORTED;
> > +    } else {
> > +      //
> > +      //  Validate the adapter
> > +      //
> > +      if (( VENDOR_ID == Device.IdVendor ) &&
> > +          ( PRODUCT_ID == Device.IdProduct )) {
> > +        Status = EFI_SUCCESS;
> > +      } else if (( VENDOR_ID == Device.IdVendor ) &&
> > +                 ( PRODUCT_ID_178A == Device.IdProduct )) {
> > +        Status = EFI_SUCCESS;
> > +      } else {
> > +        Status = EFI_UNSUPPORTED;
> > +      }
> > +    }
> > +    gBS->CloseProtocol (
> > +           Controller,
> > +           &gEfiUsbIoProtocolGuid,
> > +           pThis->DriverBindingHandle,
> > +           Controller
> > +           );
> > +  }
> > +
> > +  //
> > +  //  Return the device supported status
> > +  //
> > +
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  Start this driver on Controller by opening UsbIo and DevicePath
> protocols.
> > +  Initialize PXE structures, create a copy of the Controller Device Path with
> the
> > +  NIC's MAC address appended to it, install the NetworkInterfaceIdentifier
> protocol
> > +  on the newly created Device Path.
> > +
> > +  @param [in] pThis                Protocol instance pointer.
> > +  @param [in] Controller           Handle of device to work with.
> > +  @param [in] pRemainingDevicePath Not used, always produce all
> possible children.
> > +
> > +  @retval EFI_SUCCESS          This driver is added to Controller.
> > +  @retval other                This driver does not support this device.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +DriverStart (
> > +  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
> > +  IN EFI_HANDLE Controller,
> > +  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +  NIC_DEVICE *pNicDevice;
> > +  UINTN LengthInBytes;
> > +  EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath = NULL;
> > +  MAC_ADDR_DEVICE_PATH MacDeviceNode;
> > +
> > +  //
> > +  //  Allocate the device structure
> > +  //
> > +  LengthInBytes = sizeof ( *pNicDevice );
> > +  Status = gBS->AllocatePool (
> > +                  EfiRuntimeServicesData,
> > +                  LengthInBytes,
> > +                  (VOID **) &pNicDevice
> > +                  );
> > +
> > +  if (EFI_ERROR (Status)) {
> > +    goto ERR;
> > +  }
> > +
> > +  //
> > +  //  Set the structure signature
> > +  //
> > +  ZeroMem ( pNicDevice, LengthInBytes );
> > +  pNicDevice->Signature = DEV_SIGNATURE;
> > +
> > +  Status = gBS->OpenProtocol (
> > +                    Controller,
> > +                    &gEfiUsbIoProtocolGuid,
> > +                    (VOID **) &pNicDevice->pUsbIo,
> > +                    pThis->DriverBindingHandle,
> > +                    Controller,
> > +                    EFI_OPEN_PROTOCOL_BY_DRIVER
> > +                    );
> > +
> > +  if (EFI_ERROR (Status)) {
> > +    goto ERR;
> > +  }
> > +
> > +  //
> > +  //  Initialize the simple network protocol
> > +  //
> > +  Status = SN_Setup ( pNicDevice );
> > +
> > +  if (EFI_ERROR(Status)){
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiUsbIoProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              Controller
> > +              );
> > +    goto ERR;
> > +  }
> > +  //
> > +  // Set Device Path
> > +  //
> > +  Status = gBS->OpenProtocol (
> > +                  Controller,
> > +                  &gEfiDevicePathProtocolGuid,
> > +                  (VOID **) &ParentDevicePath,
> > +                  pThis->DriverBindingHandle,
> > +                  Controller,
> > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > +                  );
> > +  if (EFI_ERROR(Status)) {
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiUsbIoProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              Controller
> > +              );
> > +    goto ERR;
> > +  }
> > +
> > +  ZeroMem (&MacDeviceNode, sizeof (MAC_ADDR_DEVICE_PATH));
> > +  MacDeviceNode.Header.Type = MESSAGING_DEVICE_PATH;
> > +  MacDeviceNode.Header.SubType = MSG_MAC_ADDR_DP;
> > +
> > +  SetDevicePathNodeLength (&MacDeviceNode.Header, sizeof
> (MAC_ADDR_DEVICE_PATH));
> > +
> > +  CopyMem (&MacDeviceNode.MacAddress,
> > +           &pNicDevice->SimpleNetworkData.CurrentAddress,
> > +           PXE_HWADDR_LEN_ETHER);
> > +
> > +  MacDeviceNode.IfType = pNicDevice->SimpleNetworkData.IfType;
> > +
> > +  pNicDevice->MyDevPath = AppendDevicePathNode (
> > +                                          ParentDevicePath,
> > +                                          (EFI_DEVICE_PATH_PROTOCOL *)
> &MacDeviceNode
> > +                                          );
> > +  pNicDevice->Controller = NULL;
> > +
> > +  //
> > +  //  Install both the simple network and device path protocols.
> > +  //
> > +  Status = gBS->InstallMultipleProtocolInterfaces (
> > +                          &pNicDevice->Controller,
> > +                          &gEfiCallerIdGuid,
> > +                          pNicDevice,
> > +                          &gEfiSimpleNetworkProtocolGuid,
> > +                          &pNicDevice->SimpleNetwork,
> > +                          &gEfiDevicePathProtocolGuid,
> > +                          pNicDevice->MyDevPath,
> > +                          NULL
> > +                          );
> > +
> > +  if (EFI_ERROR(Status)){
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiDevicePathProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              Controller);
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiUsbIoProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              Controller
> > +              );
> > +    goto ERR;
> > +  }
> > +
> > +  //
> > +  // Open For Child Device
> > +  //
> > +  Status = gBS->OpenProtocol (
> > +                  Controller,
> > +                  &gEfiUsbIoProtocolGuid,
> > +                  (VOID **) &pNicDevice->pUsbIo,
> > +                  pThis->DriverBindingHandle,
> > +                  pNicDevice->Controller,
> > +                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> > +                  );
> > +
> > +  if (EFI_ERROR(Status)){
> > +    gBS->UninstallMultipleProtocolInterfaces (
> > +                          &pNicDevice->Controller,
> > +                          &gEfiCallerIdGuid,
> > +                          pNicDevice,
> > +                          &gEfiSimpleNetworkProtocolGuid,
> > +                          &pNicDevice->SimpleNetwork,
> > +                          &gEfiDevicePathProtocolGuid,
> > +                          pNicDevice->MyDevPath,
> > +                          NULL
> > +                          );
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiDevicePathProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              Controller);
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiUsbIoProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              Controller
> > +              );
> > +    goto ERR;
> > +  }
> > +
> > +  return Status;
> > +
> > +
> > +ERR:
> > +
> > +  if ( NULL != pNicDevice->pBulkInbuf)
> > +    gBS->FreePool (pNicDevice->pBulkInbuf);
> > +  if ( NULL != pNicDevice->pTxTest)
> > +    gBS->FreePool (pNicDevice->pTxTest);
> > +  if ( NULL != pNicDevice->MyDevPath)
> > +    gBS->FreePool (pNicDevice->MyDevPath);
> > +  if (NULL != pNicDevice)
> > +    gBS->FreePool ( pNicDevice );
> > +  return Status;
> > +
> > +}
> > +
> > +/**
> > +  Stop this driver on Controller by removing NetworkInterfaceIdentifier
> protocol and
> > +  closing the DevicePath and PciIo protocols on Controller.
> > +
> > +  @param [in] pThis                Protocol instance pointer.
> > +  @param [in] Controller           Handle of device to stop driver on.
> > +  @param [in] NumberOfChildren     How many children need to be
> stopped.
> > +  @param [in] pChildHandleBuffer   Not used.
> > +
> > +  @retval EFI_SUCCESS          This driver is removed Controller.
> > +  @retval EFI_DEVICE_ERROR     The device could not be stopped due to a
> device error.
> > +  @retval other                This driver was not removed from this device.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +DriverStop (
> > +  IN  EFI_DRIVER_BINDING_PROTOCOL * pThis,
> > +  IN  EFI_HANDLE Controller,
> > +  IN  UINTN NumberOfChildren,
> > +  IN  EFI_HANDLE * ChildHandleBuffer
> > +  )
> > +{
> > +  BOOLEAN AllChildrenStopped;
> > +  EFI_SIMPLE_NETWORK_PROTOCOL *SimpleNetwork;
> > +  EFI_STATUS Status = EFI_SUCCESS;
> > +  NIC_DEVICE *pNicDevice;
> > +  UINTN Index;
> > +
> > +  //
> > +  // Complete all outstanding transactions to Controller.
> > +  // Don't allow any new transaction to Controller to be started.
> > +  //
> > +  if (NumberOfChildren == 0) {
> > +    Status = gBS->OpenProtocol (
> > +                      Controller,
> > +                      &gEfiSimpleNetworkProtocolGuid,
> > +                      (VOID **) &SimpleNetwork,
> > +                      pThis->DriverBindingHandle,
> > +                      Controller,
> > +                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
> > +                      );
> > +
> > +    if (EFI_ERROR(Status)) {
> > +      //
> > +      // This is a 2nd type handle(multi-lun root), it needs to close
> devicepath
> > +      // and usbio protocol.
> > +      //
> > +      gBS->CloseProtocol (
> > +                Controller,
> > +                &gEfiDevicePathProtocolGuid,
> > +                pThis->DriverBindingHandle,
> > +                Controller
> > +                );
> > +      gBS->CloseProtocol (
> > +                Controller,
> > +                &gEfiUsbIoProtocolGuid,
> > +                pThis->DriverBindingHandle,
> > +                Controller
> > +                );
> > +      return EFI_SUCCESS;
> > +    }
> > +
> > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
> > +
> > +    Status = gBS->UninstallMultipleProtocolInterfaces (
> > +                          Controller,
> > +                          &gEfiCallerIdGuid,
> > +                          pNicDevice,
> > +                          &gEfiSimpleNetworkProtocolGuid,
> > +                          &pNicDevice->SimpleNetwork,
> > +                          &gEfiDevicePathProtocolGuid,
> > +                          pNicDevice->MyDevPath,
> > +                          NULL
> > +                          );
> > +
> > +    if (EFI_ERROR (Status)) {
> > +      return Status;
> > +    }
> > +    //
> > +    // Close the bus driver
> > +    //
> > +    Status = gBS->CloseProtocol (
> > +                        Controller,
> > +                        &gEfiDevicePathProtocolGuid,
> > +                        pThis->DriverBindingHandle,
> > +                        Controller
> > +                        );
> > +
> > +    Status = gBS->CloseProtocol (
> > +                        Controller,
> > +                        &gEfiUsbIoProtocolGuid,
> > +                        pThis->DriverBindingHandle,
> > +                        Controller
> > +                        );
> > +    return EFI_SUCCESS;
> > +  }
> > +
> > +  AllChildrenStopped = TRUE;
> > +
> > +  for (Index = 0; Index < NumberOfChildren; Index++) {
> > +    Status = gBS->OpenProtocol (
> > +                      ChildHandleBuffer[Index],
> > +                      &gEfiSimpleNetworkProtocolGuid,
> > +                      (VOID **) &SimpleNetwork,
> > +                      pThis->DriverBindingHandle,
> > +                      Controller,
> > +                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
> > +                      );
> > +
> > +    if (EFI_ERROR (Status)) {
> > +      AllChildrenStopped = FALSE;
> > +      continue;
> > +    }
> > +
> > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
> > +
> > +    gBS->CloseProtocol (
> > +              Controller,
> > +              &gEfiUsbIoProtocolGuid,
> > +              pThis->DriverBindingHandle,
> > +              ChildHandleBuffer[Index]
> > +              );
> > +
> > +    Status = gBS->UninstallMultipleProtocolInterfaces (
> > +                          ChildHandleBuffer[Index],
> > +                          &gEfiCallerIdGuid,
> > +                          pNicDevice,
> > +                          &gEfiSimpleNetworkProtocolGuid,
> > +                          &pNicDevice->SimpleNetwork,
> > +                          &gEfiDevicePathProtocolGuid,
> > +                          pNicDevice->MyDevPath,
> > +                          NULL
> > +                          );
> > +
> > +    if (EFI_ERROR (Status)) {
> > +      Status = gBS->OpenProtocol (
> > +                        Controller,
> > +                        &gEfiUsbIoProtocolGuid,
> > +                        (VOID **) &pNicDevice->pUsbIo,
> > +                        pThis->DriverBindingHandle,
> > +                        ChildHandleBuffer[Index],
> > +                        EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> > +                        );
> > +    } else {
> > +      if ( NULL != pNicDevice->pBulkInbuf)
> > +        gBS->FreePool (pNicDevice->pBulkInbuf);
> > +      if ( NULL != pNicDevice->pTxTest)
> > +        gBS->FreePool (pNicDevice->pTxTest);
> > +      if ( NULL != pNicDevice->MyDevPath)
> > +        gBS->FreePool (pNicDevice->MyDevPath);
> > +      if ( NULL != pNicDevice)
> > +        gBS->FreePool (pNicDevice);
> > +    }
> > +  }
> > +
> > +  if (!AllChildrenStopped) {
> > +    return EFI_DEVICE_ERROR;
> > +  }
> > +
> > +  return EFI_SUCCESS;
> > +}
> > +
> > +
> > +/**
> > +  Driver binding protocol declaration
> > +**/
> > +EFI_DRIVER_BINDING_PROTOCOL  gDriverBinding = {
> > +  DriverSupported,
> > +  DriverStart,
> > +  DriverStop,
> > +  0xa,
> > +  NULL,
> > +  NULL
> > +};
> > +
> > +
> > +/**
> > +  Ax88179 driver unload routine.
> > +
> > +  @param [in] ImageHandle       Handle for the image.
> > +
> > +  @retval EFI_SUCCESS           Image may be unloaded
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +DriverUnload (
> > +  IN EFI_HANDLE ImageHandle
> > +  )
> > +{
> > +  UINTN BufferSize;
> > +  UINTN Index;
> > +  UINTN Max;
> > +  EFI_HANDLE * pHandle;
> > +  EFI_STATUS Status;
> > +
> > +  //
> > +  //  Determine which devices are using this driver
> > +  //
> > +  BufferSize = 0;
> > +  pHandle = NULL;
> > +  Status = gBS->LocateHandle (
> > +                  ByProtocol,
> > +                  &gEfiCallerIdGuid,
> > +                  NULL,
> > +                  &BufferSize,
> > +                  NULL );
> > +  if ( EFI_BUFFER_TOO_SMALL == Status ) {
> > +    for ( ; ; ) {
> > +      //
> > +      //  One or more block IO devices are present
> > +      //
> > +      Status = gBS->AllocatePool (
> > +                      EfiRuntimeServicesData,
> > +                      BufferSize,
> > +                      (VOID **) &pHandle
> > +                      );
> > +      if ( EFI_ERROR ( Status )) {
> > +        break;
> > +      }
> > +
> > +      //
> > +      //  Locate the block IO devices
> > +      //
> > +      Status = gBS->LocateHandle (
> > +                      ByProtocol,
> > +                      &gEfiCallerIdGuid,
> > +                      NULL,
> > +                      &BufferSize,
> > +                      pHandle );
> > +      if ( EFI_ERROR ( Status )) {
> > +        //
> > +        //  Error getting handles
> > +        //
> > +
> > +        break;
> > +      }
> > +
> > +      //
> > +      //  Remove any use of the driver
> > +      //
> > +      Max = BufferSize / sizeof ( pHandle[ 0 ]);
> > +      for ( Index = 0; Max > Index; Index++ ) {
> > +        Status = DriverStop ( &gDriverBinding,
> > +                              pHandle[ Index ],
> > +                              0,
> > +                              NULL );
> > +        if ( EFI_ERROR ( Status )) {
> > +          break;
> > +        }
> > +      }
> > +      break;
> > +    }
> > +  } else {
> > +    if ( EFI_NOT_FOUND == Status ) {
> > +      //
> > +      //  No devices were found
> > +      //
> > +      Status = EFI_SUCCESS;
> > +    }
> > +  }
> > +
> > +  //
> > +  //  Free the handle array
> > +  //
> > +  if ( NULL != pHandle ) {
> > +    gBS->FreePool ( pHandle );
> > +  }
> > +
> > +  //
> > +  //  Remove the protocols installed by the EntryPoint routine.
> > +  //
> > +  if ( !EFI_ERROR ( Status )) {
> > +    gBS->UninstallMultipleProtocolInterfaces (
> > +            ImageHandle,
> > +            &gEfiDriverBindingProtocolGuid,
> > +            &gDriverBinding,
> > +            &gEfiComponentNameProtocolGuid,
> > +            &gComponentName,
> > +            &gEfiComponentName2ProtocolGuid,
> > +            &gComponentName2,
> > +            NULL
> > +            );
> > +  }
> > +
> > +  //
> > +  //  Return the unload status
> > +  //
> > +
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +Ax88179 driver entry point.
> > +
> > +@param [in] ImageHandle       Handle for the image.
> > +@param [in] pSystemTable      Address of the system table.
> > +
> > +@retval EFI_SUCCESS           Image successfully loaded.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +EntryPoint (
> > +  IN EFI_HANDLE ImageHandle,
> > +  IN EFI_SYSTEM_TABLE * pSystemTable
> > +  )
> > +{
> > +  EFI_LOADED_IMAGE_PROTOCOL * pLoadedImage;
> > +  EFI_STATUS    Status;
> > +
> > +
> > +  //
> > +  //  Enable unload support
> > +  //
> > +  Status = gBS->HandleProtocol (
> > +                  gImageHandle,
> > +                  &gEfiLoadedImageProtocolGuid,
> > +                  (VOID **)&pLoadedImage
> > +                  );
> > +  if (!EFI_ERROR (Status)) {
> > +    pLoadedImage->Unload = DriverUnload;
> > +  }
> > +
> > +  //
> > +  //  Add the driver to the list of drivers
> > +  //
> > +  Status = EfiLibInstallDriverBindingComponentName2 (
> > +             ImageHandle,
> > +             pSystemTable,
> > +             &gDriverBinding,
> > +             ImageHandle,
> > +             &gComponentName,
> > +             &gComponentName2
> > +             );
> > +
> > +  return Status;
> > +}
> > diff --git
> a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork
> .c
> >
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork
> .c
> > new file mode 100644
> > index 000000000000..25986451dcbc
> > --- /dev/null
> > +++
> b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork
> .c
> > @@ -0,0 +1,1585 @@
> > +/** @file
> > +  Provides the Simple Network functions.
> > +
> > +  Copyright (c) 2011, Intel Corporation
> > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > +
> > +**/
> > +
> > +#include "Ax88179.h"
> > +
> > +/**
> > +  This function updates the filtering on the receiver.
> > +
> > +  This support routine calls ::Ax88179MacAddressSet to update
> > +  the MAC address.  This routine then rebuilds the multicast
> > +  hash by calling ::Ax88179MulticastClear and ::Ax88179MulticastSet.
> > +  Finally this routine enables the receiver by calling
> > +  ::Ax88179RxControl.
> > +  @param [in] pSimpleNetwork    Simple network mode pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +ReceiveFilterUpdate (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_STATUS Status;
> > +  UINT32 Index;
> > +
> > +  //
> > +  // Set the MAC address
> > +  //
> > +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +  pMode = pSimpleNetwork->Mode;
> > +  //
> > +  // Clear the multicast hash table
> > +  //
> > +  Ax88179MulticastClear ( pNicDevice );
> > +
> > +  //
> > +  // Load the multicast hash table
> > +  //
> > +  if ( 0 != ( pMode->ReceiveFilterSetting &
> EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
> > +    for ( Index = 0; Index < pMode->MCastFilterCount; Index++ ) {
> > +      //
> > +      // Enable the next multicast address
> > +      //
> > +      Ax88179MulticastSet ( pNicDevice,
> > +                            &pMode->MCastFilter[ Index ].Addr[0]);
> > +    }
> > +  }
> > +
> > +  //
> > +  // Enable the receiver
> > +  //
> > +  Status = Ax88179RxControl ( pNicDevice, pMode->ReceiveFilterSetting );
> > +
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  This function updates the SNP driver status.
> > +
> > +  This function gets the current interrupt and recycled transmit
> > +  buffer status from the network interface.  The interrupt status
> > +  and the media status are returned as a bit mask in InterruptStatus.
> > +  If InterruptStatus is NULL, the interrupt status will not be read.
> > +  Upon successful return of the media status, the MediaPresent field
> > +  of EFI_SIMPLE_NETWORK_MODE will be updated to reflect any change
> > +  of media status.  If TxBuf is not NULL, a recycled transmit buffer
> > +  address will be retrived.  If a recycled transmit buffer address
> > +  is returned in TxBuf, then the buffer has been successfully
> > +  transmitted, and the status for that buffer is cleared.
> > +
> > +  This function calls ::Ax88179Rx to update the media status and
> > +  queue any receive packets.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] pInterruptStatus  A pointer to the bit mask of the current
> active interrupts.
> > +                                If this is NULL, the interrupt status will not be read from
> > +                                the device.  If this is not NULL, the interrupt status will
> > +                                be read from teh device.  When the interrupt status is
> read,
> > +                                it will also be cleared.  Clearing the transmit interrupt
> > +                                does not empty the recycled transmit buffer array.
> > +  @param [out] ppTxBuf          Recycled transmit buffer address.  The
> network interface will
> > +                                not transmit if its internal recycled transmit buffer array
> is
> > +                                full.  Reading the transmit buffer does not clear the
> transmit
> > +                                interrupt.  If this is NULL, then the transmit buffer status
> > +                                will not be read.  If there are not transmit buffers to
> recycle
> > +                                and TxBuf is not NULL, *TxBuf will be set to NULL.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +
> > +**/
> > +
> > +EFI_STATUS
> > +EFIAPI
> > +SN_GetStatus (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  OUT UINT32 * pInterruptStatus,
> > +  OUT VOID ** ppTxBuf
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_STATUS Status = EFI_SUCCESS;
> > +  EFI_TPL TplPrevious;
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // Return the transmit buffer
> > +    //
> > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +
> > +    if (( NULL != ppTxBuf ) && ( NULL != pNicDevice->pTxBuffer )) {
> > +      *ppTxBuf = pNicDevice->pTxBuffer;
> > +      pNicDevice->pTxBuffer = NULL;
> > +    }
> > +
> > +    pMode = pSimpleNetwork->Mode;
> > +    if (EfiSimpleNetworkInitialized == pMode->State) {
> > +      if (NULL == ppTxBuf && NULL == pInterruptStatus) {
> > +        Status = EFI_INVALID_PARAMETER;
> > +        goto EXIT;
> > +      }
> > +#if REPORTLINK
> > +#else
> > +      if (!pNicDevice->bLinkUp || !pNicDevice->bComplete) {
> > +#endif
> > +        Status = Ax88179NegotiateLinkComplete ( pNicDevice,
> > +                                                &pNicDevice->PollCount,
> > +                                                &pNicDevice->bComplete,
> > +                                                &pNicDevice->bLinkUp,
> > +                                                &pNicDevice->b100Mbps,
> > +                                                &pNicDevice->b1000Mbps,
> > +                                                &pNicDevice->bFullDuplex );
> > +
> > +        if (EFI_ERROR(Status))
> > +          goto EXIT;
> > +#if REPORTLINK
> > +        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > +          pMode->MediaPresent = TRUE;
> > +          Status = Ax88179SetMedium (pNicDevice);
> > +        } else {
> > +          pMode->MediaPresent = FALSE;
> > +        }
> > +#else
> > +        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > +          pMode->MediaPresent = TRUE;
> > +          pMode->MediaPresentSupported = FALSE;
> > +          Status = Ax88179SetMedium (pNicDevice);
> > +
> > +        }
> > +      }
> > +#endif
> > +    } else {
> > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > +        Status = EFI_DEVICE_ERROR; ;
> > +      } else {
> > +        Status = EFI_NOT_STARTED ;
> > +      }
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +  if ( NULL != pInterruptStatus ) {
> > +    *pInterruptStatus = 0;
> > +  }
> > +
> > +EXIT:
> > +  gBS->RestoreTPL(TplPrevious) ;
> > +
> > +  return Status;
> > +}
> > +
> > +/**
> > +  This function performs read and write operations on the NVRAM device
> > +  attached to a network interface.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] ReadWrite         TRUE for read operations, FALSE for write
> operations.
> > +  @param [in] Offset            Byte offset in the NVRAM device at which to
> start the
> > +                                read or write operation.  This must be a multiple of
> > +                                NvRamAccessSize and less than NvRamSize.
> > +  @param [in] BufferSize        The number of bytes to read or write from
> the NVRAM device.
> > +                                This must also be a multiple of NvramAccessSize.
> > +  @param [in, out] pBuffer      A pointer to the data buffer.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_NvData (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN ReadWrite,
> > +  IN UINTN Offset,
> > +  IN UINTN BufferSize,
> > +  IN OUT VOID * pBuffer
> > +  )
> > +{
> > +  EFI_STATUS Status = EFI_INVALID_PARAMETER;
> > +  EFI_TPL TplPrevious;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  NIC_DEVICE * pNicDevice;
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +  if (( NULL == pSimpleNetwork ) || ( NULL == pSimpleNetwork->Mode )) {
> > +    Status = EFI_INVALID_PARAMETER;
> > +    goto  EXIT;
> > +  }
> > +
> > +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +  pMode = pSimpleNetwork->Mode;
> > +
> > +#if PASS_SCT
> > +  if (EfiSimpleNetworkInitialized != pMode->State) {
> > +    Status = EFI_NOT_STARTED;
> > +    goto  EXIT;
> > +  }
> > +#endif
> > +
> > +  if ( 0 != Offset ) {
> > +    if ((0 != (Offset % pMode->NvRamAccessSize) ) || (Offset >= pMode-
> >NvRamSize)) {
> > +      Status = EFI_INVALID_PARAMETER;
> > +      goto  EXIT;
> > +    }
> > +  }
> > +  //
> > +  //Offset must be a multiple of NvRamAccessSize and less than
> NvRamSize.
> > +  //
> > +  if (0 != (BufferSize % pMode->NvRamAccessSize)) {
> > +    Status = EFI_INVALID_PARAMETER;
> > +    goto  EXIT;
> > +  }
> > +
> > +  if (BufferSize + Offset > pMode->NvRamSize) {
> > +    Status = EFI_INVALID_PARAMETER;
> > +    goto  EXIT;
> > +  }
> > +
> > +  if (NULL == pBuffer) {
> > +    Status = EFI_INVALID_PARAMETER;
> > +    goto  EXIT;
> > +  }
> > +
> > +  //
> > +  //ReadWrite: TRUE FOR READ FALSE FOR WRITE
> > +  //
> > +  if (ReadWrite){
> > +    UINTN i;
> > +
> > +    for (i = 0; i < BufferSize / 2 ; i++) {
> > +      Status = Ax88179SromRead ( pNicDevice,
> > +                                 (UINT32)(Offset/2 + i),
> > +                                 (((UINT16*)pBuffer) + i));
> > +    }
> > +  } else {
> > +    UINTN i;
> > +
> > +    Status = Ax88179EnableSromWrite(pNicDevice);
> > +    if (EFI_ERROR(Status)) goto EXIT;
> > +
> > +    for (i = 0; i < BufferSize / 2 ; i++){
> > +      Status = Ax88179SromWrite ( pNicDevice,
> > +                                  (UINT32)(Offset/2 + i),
> > +                                  (((UINT16*)pBuffer) + i));
> > +    }
> > +    Status = Ax88179DisableSromWrite(pNicDevice);
> > +
> > +    if (BufferSize == 272)
> > +      Status = Ax88179ReloadSrom(pNicDevice);
> > +  }
> > +
> > +  //
> > +  // Return the operation status
> > +  //
> > +EXIT:
> > +  gBS->RestoreTPL (TplPrevious);
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Resets the network adapter and allocates the transmit and receive
> buffers
> > +  required by the network interface; optionally, also requests allocation of
> > +  additional transmit and receive buffers.  This routine must be called
> before
> > +  any other routine in the Simple Network protocol is called.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] ExtraRxBufferSize Size in bytes to add to the receive buffer
> allocation
> > +  @param [in] ExtraTxBufferSize Size in bytes to add to the transmit buffer
> allocation
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_OUT_OF_RESOURCES  There was not enough memory for
> the transmit and receive buffers
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Initialize (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN UINTN ExtraRxBufferSize,
> > +  IN UINTN ExtraTxBufferSize
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_STATUS Status;
> > +  UINT32  TmpState;
> > +  EFI_TPL TplPrevious;
> > +  NIC_DEVICE * pNicDevice;
> > +  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
> > +
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // Determine if the interface is already started
> > +    //
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkStarted == pMode->State ) {
> > +      if (( 0 == ExtraRxBufferSize ) && ( 0 == ExtraTxBufferSize )) {
> > +        //
> > +        // Start the adapter
> > +        //
> > +        TmpState = pMode->State;
> > +        pMode->State = EfiSimpleNetworkInitialized;
> > +        Status = SN_Reset ( pSimpleNetwork, FALSE );
> > +        if ( EFI_ERROR ( Status )) {
> > +          //
> > +          // Update the network state
> > +          //
> > +          pMode->State = TmpState;
> > +        } else {
> > +          pMode->MediaPresentSupported = TRUE;
> > +          pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +          pMode->MediaPresent = Ax88179GetLinkStatus (pNicDevice);
> > +        }
> > +      } else {
> > +        Status = EFI_UNSUPPORTED;
> > +      }
> > +    } else {
> > +      Status = EFI_NOT_STARTED;
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +  gBS->RestoreTPL (TplPrevious);
> > +
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  This function converts a multicast IP address to a multicast HW MAC
> address
> > +  for all packet transactions.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bIPv6             Set to TRUE if the multicast IP address is IPv6
> [RFC2460].
> > +                                Set to FALSE if the multicast IP address is IPv4 [RFC 791].
> > +  @param [in] pIP               The multicast IP address that is to be converted
> to a
> > +                                multicast HW MAC address.
> > +  @param [in] pMAC              The multicast HW MAC address that is to be
> generated from IP.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_MCastIPtoMAC (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bIPv6,
> > +  IN EFI_IP_ADDRESS * pIP,
> > +  IN EFI_MAC_ADDRESS * pMAC
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +  EFI_TPL TplPrevious;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // The interface must be running
> > +    //
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +      if (pIP == NULL || pMAC == NULL) {
> > +        Status = EFI_INVALID_PARAMETER;
> > +        goto EXIT;
> > +      }
> > +      if (bIPv6){
> > +        Status = EFI_UNSUPPORTED;
> > +        goto EXIT;
> > +      } else {
> > +        //
> > +        // check if the ip given is a mcast IP
> > +        //
> > +        if ((pIP->v4.Addr[0] & 0xF0) != 0xE0) {
> > +          Status = EFI_INVALID_PARAMETER;
> > +          goto EXIT;
> > +        } else {
> > +          pMAC->Addr[0] = 0x01;
> > +          pMAC->Addr[1] = 0x00;
> > +          pMAC->Addr[2] = 0x5e;
> > +          pMAC->Addr[3] = (UINT8) (pIP->v4.Addr[1] & 0x7f);
> > +          pMAC->Addr[4] = (UINT8) pIP->v4.Addr[2];
> > +          pMAC->Addr[5] = (UINT8) pIP->v4.Addr[3];
> > +          Status = EFI_SUCCESS;
> > +        }
> > +      }
> > +    } else {
> > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > +        Status = EFI_DEVICE_ERROR; ;
> > +      } else {
> > +        Status = EFI_NOT_STARTED ;
> > +      }
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +
> > +EXIT:
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Attempt to receive a packet from the network adapter.
> > +
> > +  This function retrieves one packet from the receive queue of the
> network
> > +  interface.  If there are no packets on the receive queue, then
> EFI_NOT_READY
> > +  will be returned.  If there is a packet on the receive queue, and the size
> > +  of the packet is smaller than BufferSize, then the contents of the packet
> > +  will be placed in Buffer, and BufferSize will be udpated with the actual
> > +  size of the packet.  In addition, if SrcAddr, DestAddr, and Protocol are
> > +  not NULL, then these values will be extracted from the media header and
> > +  returned.  If BufferSize is smaller than the received packet, then the
> > +  size of the receive packet will be placed in BufferSize and
> > +  EFI_BUFFER_TOO_SMALL will be returned.
> > +
> > +  This routine calls ::Ax88179Rx to update the media status and
> > +  empty the network adapter of receive packets.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [out] pHeaderSize      The size, in bytes, of the media header to
> be filled in by
> > +                                the Transmit() function.  If HeaderSize is non-zero, then
> > +                                it must be equal to SimpleNetwork->Mode-
> >MediaHeaderSize
> > +                                and DestAddr and Protocol parameters must not be
> NULL.
> > +  @param [out] pBufferSize      The size, in bytes, of the entire packet
> (media header and
> > +                                data) to be transmitted through the network interface.
> > +  @param [out] pBuffer          A pointer to the packet (media header
> followed by data) to
> > +                                to be transmitted.  This parameter can not be NULL.  If
> > +                                HeaderSize is zero, then the media header is Buffer must
> > +                                already be filled in by the caller.  If HeaderSize is
> nonzero,
> > +                                then the media header will be filled in by the Transmit()
> > +                                function.
> > +  @param [out] pSrcAddr         The source HW MAC address.  If HeaderSize
> is zero, then
> > +                                this parameter is ignored.  If HeaderSize is nonzero and
> > +                                SrcAddr is NULL, then SimpleNetwork->Mode-
> >CurrentAddress
> > +                                is used for the source HW MAC address.
> > +  @param [out] pDestAddr        The destination HW MAC address.  If
> HeaderSize is zero, then
> > +                                this parameter is ignored.
> > +  @param [out] pProtocol        The type of header to build.  If HeaderSize is
> zero, then
> > +                                this parameter is ignored.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_NOT_READY         No packets have been received on the
> network interface.
> > +  @retval EFI_BUFFER_TOO_SMALL  The packet is larger than BufferSize
> bytes.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Receive (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  OUT UINTN                      * pHeaderSize,
> > +  OUT UINTN                      * pBufferSize,
> > +  OUT VOID                       * pBuffer,
> > +  OUT EFI_MAC_ADDRESS            * pSrcAddr,
> > +  OUT EFI_MAC_ADDRESS            * pDestAddr,
> > +  OUT UINT16                     * pProtocol
> > +  )
> > +{
> > +  ETHERNET_HEADER * pHeader;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_STATUS Status;
> > +  UINT16 Type = 0;
> > +  UINT16  CurrentPktLen;
> > +  BOOLEAN bValid = TRUE;
> > +  EFI_TPL TplPrevious;
> > +  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // The interface must be running
> > +    //
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +      if ((pBufferSize == NULL) || (pBuffer == NULL)) {
> > +        Status = EFI_INVALID_PARAMETER;
> > +        gBS->RestoreTPL (TplPrevious);
> > +        return Status;
> > +      }
> > +      //
> > +      // Update the link status
> > +      //
> > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > +        if ((NULL != pHeaderSize) && (7720 == *pHeaderSize)) {
> > +          pNicDevice->Grub_f = TRUE;
> > +        }
> > +
> > +        if ((pNicDevice->Grub_f) && (7720 != *pHeaderSize)) {
> > +          gBS->RestoreTPL (TplPrevious);
> > +          return EFI_NOT_READY;
> > +        }
> > +        //
> > +        //  Attempt to do bulk in
> > +        //
> > +        if (0 == pNicDevice->PktCnt) {
> > +          Status = Ax88179BulkIn(pNicDevice);
> > +          if (EFI_ERROR(Status))
> > +            goto  no_pkt;
> > +        }
> > +        CurrentPktLen = *((UINT16*) (pNicDevice->pCurPktHdrOff + 2));
> > +        if (CurrentPktLen & (RXHDR_DROP | RXHDR_CRCERR))
> > +          bValid = FALSE;
> > +        CurrentPktLen &=  0x1fff;
> > +        CurrentPktLen -= 2; /*EEEE*/
> > +
> > +        if (bValid && ( 60 <= CurrentPktLen ) &&
> > +        ((CurrentPktLen - 14) <= MAX_ETHERNET_PKT_SIZE) &&
> > +            (*((UINT16*)pNicDevice->pCurPktOff)) == 0xEEEE) {
> > +          if (*pBufferSize < (UINTN)CurrentPktLen) {
> > +            gBS->RestoreTPL (TplPrevious);
> > +            return EFI_BUFFER_TOO_SMALL;
> > +          }
> > +          *pBufferSize = CurrentPktLen;
> > +          CopyMem ( pBuffer, pNicDevice->pCurPktOff + 2, CurrentPktLen );
> > +
> > +          pHeader = (ETHERNET_HEADER *) pNicDevice->pCurPktOff + 2;
> > +
> > +          if ( NULL != pHeaderSize  && (7720 != *pHeaderSize)) {
> > +            *pHeaderSize = sizeof ( *pHeader );
> > +          }
> > +
> > +          if ( NULL != pDestAddr ) {
> > +            CopyMem ( pDestAddr, &pHeader->dest_addr,
> PXE_HWADDR_LEN_ETHER );
> > +          }
> > +          if ( NULL != pSrcAddr ) {
> > +            CopyMem ( pSrcAddr, &pHeader->src_addr,
> PXE_HWADDR_LEN_ETHER );
> > +          }
> > +          if ( NULL != pProtocol ) {
> > +            Type = pHeader->type;
> > +            Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
> > +            *pProtocol = Type;
> > +          }
> > +          pNicDevice->PktCnt--;
> > +          pNicDevice->pCurPktHdrOff += 4;
> > +          pNicDevice->pCurPktOff += (CurrentPktLen + 2 + 7) & 0xfff8;
> > +          Status = EFI_SUCCESS;
> > +        } else {
> > +          pNicDevice->PktCnt = 0;
> > +          Status = EFI_NOT_READY;
> > +        }
> > +      } else {
> > +        Status = EFI_NOT_READY;
> > +      }
> > +    } else {
> > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > +        Status = EFI_DEVICE_ERROR;
> > +      } else {
> > +        Status = EFI_NOT_STARTED ;
> > +      }
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +no_pkt:
> > +  gBS->RestoreTPL (TplPrevious);
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  This function is used to enable and disable the hardware and software
> receive
> > +  filters for the underlying network device.
> > +
> > +  The receive filter change is broken down into three steps:
> > +
> > +    1.  The filter mask bits that are set (ON) in the Enable parameter
> > +        are added to the current receive filter settings.
> > +
> > +    2.  The filter mask bits that are set (ON) in the Disable parameter
> > +        are subtracted from the updated receive filter settins.
> > +
> > +    3.  If the resulting filter settigns is not supported by the hardware
> > +        a more liberal setting is selected.
> > +
> > +  If the same bits are set in the Enable and Disable parameters, then the
> bits
> > +  in the Disable parameter takes precedence.
> > +
> > +  If the ResetMCastFilter parameter is TRUE, then the multicast address
> list
> > +  filter is disabled (irregardless of what other multicast bits are set in
> > +  the enable and Disable parameters).  The SNP->Mode->MCastFilterCount
> field
> > +  is set to zero.  The SNP->Mode->MCastFilter contents are undefined.
> > +
> > +  After enableing or disabling receive filter settings, software should
> > +  verify the new settings by checking the SNP->Mode-
> >ReceeiveFilterSettings,
> > +  SNP->Mode->MCastFilterCount and SNP->Mode->MCastFilter fields.
> > +
> > +  Note: Some network drivers and/or devices will automatically promote
> > +  receive filter settings if the requested setting can not be honored.
> > +  For example, if a request for four multicast addresses is made and
> > +  the underlying hardware only supports two multicast addresses the
> > +  driver might set the promiscuous or promiscuous multicast receive filters
> > +  instead.  The receiving software is responsible for discarding any extra
> > +  packets that get through the hardware receive filters.
> > +
> > +  If ResetMCastFilter is TRUE, then the multicast receive filter list
> > +  on the network interface will be reset to the default multicast receive
> > +  filter list.  If ResetMCastFilter is FALSE, and this network interface
> > +  allows the multicast receive filter list to be modified, then the
> > +  MCastFilterCnt and MCastFilter are used to update the current multicast
> > +  receive filter list.  The modified receive filter list settings can be
> > +  found in the MCastFilter field of EFI_SIMPLE_NETWORK_MODE.
> > +
> > +  This routine calls ::ReceiveFilterUpdate to update the receive
> > +  state in the network adapter.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] Enable            A bit mask of receive filters to enable on the
> network interface.
> > +  @param [in] Disable           A bit mask of receive filters to disable on the
> network interface.
> > +                                For backward compatibility with EFI 1.1 platforms, the
> > +                                EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit must
> be set
> > +                                when the ResetMCastFilter parameter is TRUE.
> > +  @param [in] bResetMCastFilter Set to TRUE to reset the contents of the
> multicast receive
> > +                                filters on the network interface to their default values.
> > +  @param [in] MCastFilterCnt    Number of multicast HW MAC address in
> the new MCastFilter list.
> > +                                This value must be less than or equal to the
> MaxMCastFilterCnt
> > +                                field of EFI_SIMPLE_NETWORK_MODE.  This field is
> optional if
> > +                                ResetMCastFilter is TRUE.
> > +  @param [in] pMCastFilter      A pointer to a list of new multicast receive
> filter HW MAC
> > +                                addresses.  This list will replace any existing multicast
> > +                                HW MAC address list.  This field is optional if
> ResetMCastFilter
> > +                                is TRUE.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_ReceiveFilters (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN UINT32 Enable,
> > +  IN UINT32 Disable,
> > +/*
> > +#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
> > +#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
> > +#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
> > +#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
> > +#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST
> 0x10
> > +*/
> > +  IN BOOLEAN bResetMCastFilter,
> > +  IN UINTN MCastFilterCnt,
> > +  IN EFI_MAC_ADDRESS * pMCastFilter
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_STATUS Status = EFI_SUCCESS;
> > +  EFI_TPL TplPrevious;
> > +  NIC_DEVICE * pNicDevice;
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +  pMode = pSimpleNetwork->Mode;
> > +
> > +  if (pSimpleNetwork == NULL) {
> > +    gBS->RestoreTPL(TplPrevious);
> > +    return EFI_INVALID_PARAMETER;
> > +  }
> > +
> > +  switch (pMode->State) {
> > +  case EfiSimpleNetworkInitialized:
> > +    break;
> > +  case EfiSimpleNetworkStopped:
> > +    Status = EFI_NOT_STARTED;
> > +    gBS->RestoreTPL(TplPrevious);
> > +    return Status;
> > +
> > +  default:
> > +    Status = EFI_DEVICE_ERROR;
> > +    gBS->RestoreTPL(TplPrevious);
> > +    return Status;
> > +  }
> > +
> > +  //
> > +  // check if we are asked to enable or disable something that the UNDI
> > +  // does not even support!
> > +  //
> > +  if (((Enable &~pMode->ReceiveFilterMask) != 0) ||
> > +      ((Disable &~pMode->ReceiveFilterMask) != 0)) {
> > +    Status = EFI_INVALID_PARAMETER;
> > +    gBS->RestoreTPL(TplPrevious);
> > +    return Status;
> > +  }
> > +
> > +  if (bResetMCastFilter) {
> > +    Disable |= (EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST & pMode-
> >ReceiveFilterMask);
> > +    MCastFilterCnt = 0;
> > +    pMode->MCastFilterCount = 0;
> > +    if ( (0 == (pMode->ReceiveFilterSetting &
> EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST)) &&
> > +   Enable == 0 && Disable == 2) {
> > +      gBS->RestoreTPL(TplPrevious);
> > +      return EFI_SUCCESS;
> > +    }
> > +  } else {
> > +    if (MCastFilterCnt != 0) {
> > +      UINTN i;
> > +
> > +      EFI_MAC_ADDRESS * pMulticastAddress;
> > +      pMulticastAddress =  pMCastFilter;
> > +
> > +      if ((MCastFilterCnt > pMode->MaxMCastFilterCount) ||
> > +          (pMCastFilter == NULL)) {
> > +        Status = EFI_INVALID_PARAMETER;
> > +        gBS->RestoreTPL(TplPrevious);
> > +        return Status;
> > +      }
> > +
> > +      for ( i = 0 ; i < MCastFilterCnt ; i++ ) {
> > +          UINT8  tmp;
> > +
> > +          tmp = pMulticastAddress->Addr[0];
> > +          if ( (tmp & 0x01) != 0x01 ) {
> > +            gBS->RestoreTPL(TplPrevious);
> > +            return EFI_INVALID_PARAMETER;
> > +          }
> > +          pMulticastAddress++;
> > +      }
> > +
> > +      pMode->MCastFilterCount = (UINT32)MCastFilterCnt;
> > +      CopyMem (&pMode->MCastFilter[0],
> > +               pMCastFilter,
> > +               MCastFilterCnt * sizeof ( EFI_MAC_ADDRESS/**pMCastFilter*/ ));
> > +    }
> > +  }
> > +
> > +  if (Enable == 0 && Disable == 0 && !bResetMCastFilter &&
> MCastFilterCnt == 0) {
> > +    Status = EFI_SUCCESS;
> > +    gBS->RestoreTPL(TplPrevious);
> > +    return Status;
> > +  }
> > +
> > +  if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0 &&
> MCastFilterCnt == 0) {
> > +    Status = EFI_INVALID_PARAMETER;
> > +    gBS->RestoreTPL(TplPrevious);
> > +    return Status;
> > +  }
> > +
> > +  pMode->ReceiveFilterSetting |= Enable;
> > +  pMode->ReceiveFilterSetting &= ~Disable;
> > +
> > +  Status = ReceiveFilterUpdate (pSimpleNetwork);
> > +
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Reset the network adapter.
> > +
> > +  Resets a network adapter and reinitializes it with the parameters that
> > +  were provided in the previous call to Initialize ().  The transmit and
> > +  receive queues are cleared.  Receive filters, the station address, the
> > +  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
> > +  this call.
> > +
> > +  This routine calls ::Ax88179Reset to perform the adapter specific
> > +  reset operation.  This routine also starts the link negotiation
> > +  by calling ::Ax88179NegotiateLinkStart.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bExtendedVerification  Indicates that the driver may
> perform a more
> > +                                exhaustive verification operation of the device
> > +                                during reset.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Reset (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bExtendedVerification
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_STATUS Status;
> > +  EFI_TPL TplPrevious;
> > +
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +  //
> > +  //  Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +      //
> > +      //  Update the device state
> > +      //
> > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +
> > +      //
> > +      //  Reset the device
> > +      //
> > +      if (!pNicDevice->bFirstRst) {
> > +        Status = EFI_SUCCESS;
> > +      } else {
> > +        Status = Ax88179Reset ( pNicDevice );
> > +        if ( !EFI_ERROR ( Status )) {
> > +          Status = ReceiveFilterUpdate ( pSimpleNetwork );
> > +          if ( !EFI_ERROR ( Status ) && !pNicDevice->bLinkUp && pNicDevice-
> >bFirstRst) {
> > +            Status = Ax88179NegotiateLinkStart ( pNicDevice );
> > +            pNicDevice->bFirstRst = FALSE;
> > +          }
> > +        }
> > +      }
> > +    } else {
> > +      Status = EFI_NOT_STARTED;
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +/**
> > +  Initialize the simple network protocol.
> > +
> > +  This routine calls ::Ax88179MacAddressGet to obtain the
> > +  MAC address.
> > +
> > +  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
> > +
> > +  @retval EFI_SUCCESS     Setup was successful
> > +
> > +**/
> > +EFI_STATUS
> > +SN_Setup (
> > +  IN NIC_DEVICE * pNicDevice
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork;
> > +  EFI_STATUS Status;
> > +
> > +  //
> > +  // Initialize the simple network protocol
> > +  //
> > +  pSimpleNetwork = &pNicDevice->SimpleNetwork;
> > +  pSimpleNetwork->Revision =
> EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
> > +  pSimpleNetwork->Start = (EFI_SIMPLE_NETWORK_START)SN_Start;
> > +  pSimpleNetwork->Stop = (EFI_SIMPLE_NETWORK_STOP)SN_Stop;
> > +  pSimpleNetwork->Initialize =
> (EFI_SIMPLE_NETWORK_INITIALIZE)SN_Initialize;
> > +  pSimpleNetwork->Reset = (EFI_SIMPLE_NETWORK_RESET)SN_Reset;
> > +  pSimpleNetwork->Shutdown =
> (EFI_SIMPLE_NETWORK_SHUTDOWN)SN_Shutdown;
> > +  pSimpleNetwork->ReceiveFilters =
> (EFI_SIMPLE_NETWORK_RECEIVE_FILTERS)SN_ReceiveFilters;
> > +  pSimpleNetwork->StationAddress =
> (EFI_SIMPLE_NETWORK_STATION_ADDRESS)SN_StationAddress;
> > +  pSimpleNetwork->Statistics =
> (EFI_SIMPLE_NETWORK_STATISTICS)SN_Statistics;
> > +  pSimpleNetwork->MCastIpToMac =
> (EFI_SIMPLE_NETWORK_MCAST_IP_TO_MAC)SN_MCastIPtoMAC;
> > +  pSimpleNetwork->NvData =
> (EFI_SIMPLE_NETWORK_NVDATA)SN_NvData;
> > +  pSimpleNetwork->GetStatus =
> (EFI_SIMPLE_NETWORK_GET_STATUS)SN_GetStatus;
> > +  pSimpleNetwork->Transmit =
> (EFI_SIMPLE_NETWORK_TRANSMIT)SN_Transmit;
> > +  pSimpleNetwork->Receive =
> (EFI_SIMPLE_NETWORK_RECEIVE)SN_Receive;
> > +  pSimpleNetwork->WaitForPacket = NULL;
> > +  pMode = &pNicDevice->SimpleNetworkData;
> > +  pSimpleNetwork->Mode = pMode;
> > +  pMode->State = EfiSimpleNetworkStopped;
> > +  pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
> > +  pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
> > +  pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
> > +  pMode->ReceiveFilterMask =
> EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> > +                           | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> > +                           | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> > +                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
> > +                           |
> EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
> > +  pMode->ReceiveFilterSetting =
> EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> > +                              | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
> > +  pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> > +  pMode->MCastFilterCount = 0;
> > +  pMode->NvRamSize = 512;
> > +  pMode->NvRamAccessSize = 2;
> > +  SetMem ( &pMode->BroadcastAddress,
> > +           PXE_HWADDR_LEN_ETHER,
> > +           0xff );
> > +  pMode->IfType = EfiNetworkInterfaceUndi;
> > +  pMode->MacAddressChangeable = TRUE;
> > +  pMode->MultipleTxSupported = FALSE;
> > +  pMode->MediaPresentSupported = TRUE;
> > +  pMode->MediaPresent = FALSE;
> > +  //
> > +  //  Read the MAC address
> > +  //
> > +  pNicDevice->PhyId = PHY_ID_INTERNAL;
> > +  pNicDevice->b100Mbps = FALSE;
> > +  pNicDevice->b1000Mbps = TRUE;
> > +  pNicDevice->bFullDuplex = TRUE;
> > +  pNicDevice->bComplete = FALSE;
> > +  pNicDevice->bLinkUp = FALSE;
> > +  pNicDevice->Grub_f = FALSE;
> > +  pNicDevice->bFirstRst = TRUE;
> > +  pNicDevice->PktCnt = 0;
> > +  pNicDevice->SkipRXCnt = 0;
> > +  pNicDevice->usbMaxPktSize = 512;
> > +  pNicDevice->bSetZeroLen = TRUE;
> > +
> > +  Status = Ax88179MacAddressGet ( pNicDevice,
> > +                                  &pMode->PermanentAddress.Addr[0]);
> > +  if ( !EFI_ERROR ( Status )) {
> > +    //
> > +    //  Use the hardware address as the current address
> > +    //
> > +    CopyMem ( &pMode->CurrentAddress,
> > +              &pMode->PermanentAddress,
> > +              PXE_HWADDR_LEN_ETHER );
> > +
> > +    CopyMem ( &pNicDevice->MAC,
> > +              &pMode->PermanentAddress,
> > +              PXE_HWADDR_LEN_ETHER );
> > +
> > +  } else {
> > +    return Status;
> > +  }
> > +
> > +  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
> > +                               AX88179_MAX_BULKIN_SIZE,
> > +                               (VOID **) &pNicDevice->pBulkInbuf );
> > +
> > +  if (EFI_ERROR (Status)) {
> > +  return Status;
> > +  }
> > +
> > +  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
> > +                               sizeof ( TX_PACKET ),
> > +                               (VOID **) &pNicDevice->pTxTest );
> > +  if (EFI_ERROR (Status)) {
> > +  gBS->FreePool (pNicDevice->pBulkInbuf);
> > +  }
> > +
> > +  //
> > +  //  Return the setup status
> > +  //
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  This routine starts the network interface.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_ALREADY_STARTED   The network interface was already
> started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Start (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  )
> > +{
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_STATUS Status;
> > +  EFI_TPL TplPrevious;
> > +
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +
> > +
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  Status = EFI_INVALID_PARAMETER;
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkStopped == pMode->State ) {
> > +      //
> > +      // Initialize the mode structure
> > +      // NVRAM access is not supported
> > +      //
> > +      ZeroMem ( pMode, sizeof ( *pMode ));
> > +
> > +      pMode->State = EfiSimpleNetworkStarted;
> > +      pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
> > +      pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
> > +      pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
> > +      pMode->ReceiveFilterMask =
> EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> > +                               | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> > +                               | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> > +                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
> > +                               |
> EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
> > +      pMode->ReceiveFilterSetting =
> EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;
> > +      pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> > +      pMode->MCastFilterCount = 0;
> > +      pMode->NvRamSize = 512;
> > +      pMode->NvRamAccessSize = 2;
> > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +      Status = Ax88179MacAddressGet ( pNicDevice, &pMode-
> >PermanentAddress.Addr[0]);
> > +      CopyMem ( &pMode->CurrentAddress,
> > +                &pMode->PermanentAddress,
> > +                sizeof ( pMode->CurrentAddress ));
> > +      SetMem(&pMode->BroadcastAddress, PXE_HWADDR_LEN_ETHER,
> 0xff);
> > +      pMode->IfType = EfiNetworkInterfaceUndi;
> > +      pMode->MacAddressChangeable = TRUE;
> > +      pMode->MultipleTxSupported = FALSE;
> > +      pMode->MediaPresentSupported = TRUE;
> > +      pMode->MediaPresent = FALSE;
> > +
> > +    } else {
> > +      Status = EFI_ALREADY_STARTED;
> > +    }
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  Set the MAC address.
> > +
> > +  This function modifies or resets the current station address of a
> > +  network interface.  If Reset is TRUE, then the current station address
> > +  is set ot the network interface's permanent address.  If Reset if FALSE
> > +  then the current station address is changed to the address specified by
> > +  pNew.
> > +
> > +  This routine calls ::Ax88179MacAddressSet to update the MAC address
> > +  in the network adapter.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bReset            Flag used to reset the station address to the
> > +                                network interface's permanent address.
> > +  @param [in] pNew              New station address to be used for the
> network
> > +                                interface.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_StationAddress (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bReset,
> > +  IN EFI_MAC_ADDRESS * pNew
> > +  )
> > +{
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_STATUS Status;
> > +
> > +  EFI_TPL TplPrevious;
> > +
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) &&
> > +      ( NULL != pSimpleNetwork->Mode ) &&
> > +      (( !bReset ) || ( bReset && ( NULL != pNew )))) {
> > +    //
> > +    // Verify that the adapter is already started
> > +    //
> > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +      //
> > +      // Determine the adapter MAC address
> > +      //
> > +      if ( bReset ) {
> > +        //
> > +        // Use the permanent address
> > +        //
> > +        CopyMem ( &pMode->CurrentAddress,
> > +                  &pMode->PermanentAddress,
> > +                  sizeof ( pMode->CurrentAddress ));
> > +      } else {
> > +        //
> > +        // Use the specified address
> > +        //
> > +        CopyMem ( &pMode->CurrentAddress,
> > +                  pNew,
> > +                  sizeof ( pMode->CurrentAddress ));
> > +      }
> > +
> > +      //
> > +      // Update the address on the adapter
> > +      //
> > +      Status = Ax88179MacAddressSet ( pNicDevice, &pMode-
> >CurrentAddress.Addr[0]);
> > +    }  else {
> > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > +          Status = EFI_DEVICE_ERROR; ;
> > +      } else {
> > +          Status = EFI_NOT_STARTED ;
> > +      }
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +
> > +  //
> > +  // Return the operation status
> > +  //
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  This function resets or collects the statistics on a network interface.
> > +  If the size of the statistics table specified by StatisticsSize is not
> > +  big enough for all of the statistics that are collected by the network
> > +  interface, then a partial buffer of statistics is returned in
> > +  StatisticsTable.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] bReset            Set to TRUE to reset the statistics for the
> network interface.
> > +  @param [in, out] pStatisticsSize  On input the size, in bytes, of
> StatisticsTable.  On output
> > +                                the size, in bytes, of the resulting table of statistics.
> > +  @param [out] pStatisticsTable A pointer to the
> EFI_NETWORK_STATISTICS structure that
> > +                                conains the statistics.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the
> buffer is too small.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +  typedef struct {
> > +  UINT64 RxTotalFrames;
> > +  UINT64 RxGoodFrames;
> > +  UINT64 RxUndersizeFrames;
> > +  UINT64 RxOversizeFrames;
> > +  UINT64 RxDroppedFrames;
> > +  UINT64 RxUnicastFrames;
> > +  UINT64 RxBroadcastFrames;
> > +  UINT64 RxMulticastFrames;
> > +  UINT64 RxCrcErrorFrames;
> > +  UINT64 RxTotalBytes;
> > +  UINT64 TxTotalFrames;
> > +  UINT64 TxGoodFrames;
> > +  UINT64 TxUndersizeFrames;
> > +  UINT64 TxOversizeFrames;
> > +  UINT64 TxDroppedFrames;
> > +  UINT64 TxUnicastFrames;
> > +  UINT64 TxBroadcastFrames;
> > +  UINT64 TxMulticastFrames;
> > +  UINT64 TxCrcErrorFrames;
> > +  UINT64 TxTotalBytes;
> > +  UINT64 Collisions;
> > +  UINT64 UnsupportedProtocol;
> > +  } EFI_NETWORK_STATISTICS;
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Statistics (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN BOOLEAN bReset,
> > +  IN OUT UINTN * pStatisticsSize,
> > +  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
> > +  )
> > +{
> > +  EFI_STATUS Status;
> > +  EFI_TPL TplPrevious;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +
> > +
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +  pMode = pSimpleNetwork->Mode;
> > +
> > +  if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +    if (NULL != pStatisticsSize && 0 == *pStatisticsSize) {
> > +      Status = EFI_BUFFER_TOO_SMALL;
> > +      goto EXIT;
> > +    }
> > +
> > +    if(bReset) {
> > +      Status = EFI_SUCCESS;
> > +    } else {
> > +      Status = EFI_SUCCESS;
> > +    }
> > +  } else {
> > +    if (EfiSimpleNetworkStarted == pMode->State) {
> > +      Status = EFI_DEVICE_ERROR; ;
> > +    } else {
> > +      Status = EFI_NOT_STARTED ;
> > +    }
> > +  }
> > +
> > +  Status = EFI_UNSUPPORTED;
> > +EXIT:
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  This function stops a network interface.  This call is only valid
> > +  if the network interface is in the started state.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Stop (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_STATUS Status;
> > +  EFI_TPL TplPrevious;
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // Determine if the interface is started
> > +    //
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkStarted == pMode->State ) {
> > +        pMode->State = EfiSimpleNetworkStopped;
> > +        Status = EFI_SUCCESS;
> > +    } else {
> > +        Status = EFI_NOT_STARTED;
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +  gBS->RestoreTPL(TplPrevious);
> > +  return Status;
> > +}
> > +
> > +/**
> > +  This function releases the memory buffers assigned in the Initialize() call.
> > +  Pending transmits and receives are lost, and interrupts are cleared and
> disabled.
> > +  After this call, only Initialize() and Stop() calls may be used.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> supported.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Shutdown (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > +  )
> > +{
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  EFI_STATUS Status;
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_TPL TplPrevious;
> > +
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // Determine if the interface is already started
> > +    //
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +      //
> > +      // Stop the adapter
> > +      //
> > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +
> > +      Status = Ax88179MacAddressGet ( pNicDevice, &pMode-
> >PermanentAddress.Addr[0]);
> > +      if ( !EFI_ERROR ( Status )) {
> > +        //
> > +        // Update the network state
> > +        //
> > +        pMode->State = EfiSimpleNetworkStarted;
> > +      } else if ( EFI_DEVICE_ERROR == Status ) {
> > +        pMode->State = EfiSimpleNetworkStopped;
> > +      }
> > +    } else {
> > +      Status = EFI_NOT_STARTED;
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +  //
> > +  // Return the operation status
> > +  //
> > +  gBS->RestoreTPL(TplPrevious );
> > +  return Status;
> > +}
> > +
> > +
> > +/**
> > +  Send a packet over the network.
> > +
> > +  This function places the packet specified by Header and Buffer on
> > +  the transmit queue.  This function performs a non-blocking transmit
> > +  operation.  When the transmit is complete, the buffer is returned
> > +  via the GetStatus() call.
> > +
> > +  This routine calls ::Ax88179Rx to empty the network adapter of
> > +  receive packets.  The routine then passes the transmit packet
> > +  to the network adapter.
> > +
> > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > +  @param [in] HeaderSize        The size, in bytes, of the media header to be
> filled in by
> > +                                the Transmit() function.  If HeaderSize is non-zero, then
> > +                                it must be equal to SimpleNetwork->Mode-
> >MediaHeaderSize
> > +                                and DestAddr and Protocol parameters must not be
> NULL.
> > +  @param [in] BufferSize        The size, in bytes, of the entire packet (media
> header and
> > +                                data) to be transmitted through the network interface.
> > +  @param [in] pBuffer           A pointer to the packet (media header
> followed by data) to
> > +                                to be transmitted.  This parameter can not be NULL.  If
> > +                                HeaderSize is zero, then the media header is Buffer must
> > +                                already be filled in by the caller.  If HeaderSize is
> nonzero,
> > +                                then the media header will be filled in by the Transmit()
> > +                                function.
> > +  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize
> is zero, then
> > +                                this parameter is ignored.  If HeaderSize is nonzero and
> > +                                SrcAddr is NULL, then SimpleNetwork->Mode-
> >CurrentAddress
> > +                                is used for the source HW MAC address.
> > +  @param [in] pDestAddr         The destination HW MAC address.  If
> HeaderSize is zero, then
> > +                                this parameter is ignored.
> > +  @param [in] pProtocol         The type of header to build.  If HeaderSize is
> zero, then
> > +                                this parameter is ignored.
> > +
> > +  @retval EFI_SUCCESS           This operation was successful.
> > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > +  @retval EFI_NOT_READY         The network interface is too busy to
> accept this transmit request.
> > +  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too
> small.
> > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> NULL or did not point to a valid
> > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> network interface.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +SN_Transmit (
> > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > +  IN UINTN HeaderSize,
> > +  IN UINTN BufferSize,
> > +  IN VOID * pBuffer,
> > +  IN EFI_MAC_ADDRESS * pSrcAddr,
> > +  IN EFI_MAC_ADDRESS * pDestAddr,
> > +  IN UINT16 * pProtocol
> > +  )
> > +{
> > +  ETHERNET_HEADER * pHeader;
> > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > +  NIC_DEVICE * pNicDevice;
> > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > +  EFI_STATUS Status;
> > +  UINTN TransferLength;
> > +  UINT32 TransferStatus;
> > +  UINT16 Type = 0;
> > +  EFI_TPL TplPrevious;
> > +
> > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > +  //
> > +  // Verify the parameters
> > +  //
> > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > +    //
> > +    // The interface must be running
> > +    //
> > +    pMode = pSimpleNetwork->Mode;
> > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > +      //
> > +      // Update the link status
> > +      //
> > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > +
> > +      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > +        if (0 != HeaderSize && pMode->MediaHeaderSize != HeaderSize)  {
> > +            Status = EFI_INVALID_PARAMETER;
> > +            goto EXIT;
> > +        }
> > +        if (BufferSize <  pMode->MediaHeaderSize) {
> > +            Status = EFI_INVALID_PARAMETER;
> > +            goto EXIT;
> > +        }
> > +        if (NULL == pBuffer) {
> > +            Status = EFI_INVALID_PARAMETER;
> > +            goto EXIT;
> > +        }
> > +        if (0 != HeaderSize && NULL == pDestAddr) {
> > +            Status = EFI_INVALID_PARAMETER;
> > +            goto EXIT;
> > +        }
> > +        if (0 != HeaderSize && NULL == pProtocol) {
> > +            Status = EFI_INVALID_PARAMETER;
> > +            goto EXIT;
> > +        }
> > +        //
> > +        //  Copy the packet into the USB buffer
> > +        //
> > +        // pBuffer starting with 14 bytes 0
> > +        CopyMem ( &pNicDevice->pTxTest->Data[0], pBuffer, BufferSize);
> > +        pNicDevice->pTxTest->TxHdr1 = (UINT32) BufferSize;
> > +        pNicDevice->pTxTest->TxHdr2 = 0;
> > +        //
> > +        //  Transmit the packet
> > +        //
> > +        pHeader = (ETHERNET_HEADER *) &pNicDevice->pTxTest->Data[0];
> > +        if ( 0 != HeaderSize ) {
> > +          if ( NULL != pDestAddr ) {
> > +            CopyMem ( &pHeader->dest_addr, pDestAddr,
> PXE_HWADDR_LEN_ETHER );
> > +          }
> > +          if ( NULL != pSrcAddr ) {
> > +            CopyMem ( &pHeader->src_addr, pSrcAddr,
> PXE_HWADDR_LEN_ETHER );
> > +          } else {
> > +            CopyMem ( &pHeader->src_addr, &pMode-
> >CurrentAddress.Addr[0], PXE_HWADDR_LEN_ETHER );
> > +          }
> > +          if ( NULL != pProtocol ) {
> > +            Type = *pProtocol;
> > +          } else {
> > +              Type = (UINT16) BufferSize;
> > +          }
> > +          Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
> > +          pHeader->type = Type;
> > +        }
> > +
> > +        if ( pNicDevice->pTxTest->TxHdr1 < MIN_ETHERNET_PKT_SIZE ) {
> > +          pNicDevice->pTxTest->TxHdr1 = MIN_ETHERNET_PKT_SIZE;
> > +          ZeroMem ( &pNicDevice->pTxTest->Data[BufferSize],
> > +                    MIN_ETHERNET_PKT_SIZE - BufferSize );
> > +        }
> > +
> > +        TransferLength = sizeof ( pNicDevice->pTxTest->TxHdr1 )
> > +                       + sizeof ( pNicDevice->pTxTest->TxHdr2 )
> > +                       + pNicDevice->pTxTest->TxHdr1;
> > +        //
> > +        //  Work around USB bus driver bug where a timeout set by receive
> > +        //  succeeds but the timeout expires immediately after, causing the
> > +        //  transmit operation to timeout.
> > +        //
> > +        pUsbIo = pNicDevice->pUsbIo;
> > +        Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
> > +                                           BULK_OUT_ENDPOINT,
> > +                                           &pNicDevice->pTxTest->TxHdr1,
> > +                                           &TransferLength,
> > +                                           0xfffffffe,
> > +                                           &TransferStatus );
> > +
> > +        if (!EFI_ERROR(Status) && !EFI_ERROR(Status)) {
> > +              pNicDevice->pTxBuffer = pBuffer;
> > +              Status = EFI_SUCCESS;
> > +        } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT ==
> TransferStatus) {
> > +              Status = EFI_NOT_READY;
> > +        } else {
> > +              Status = EFI_DEVICE_ERROR;
> > +        }
> > +      } else {
> > +        //
> > +        // No packets available.
> > +        //
> > +        Status = EFI_NOT_READY;
> > +      }
> > +    } else {
> > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > +          Status = EFI_DEVICE_ERROR; ;
> > +      } else {
> > +          Status = EFI_NOT_STARTED ;
> > +      }
> > +    }
> > +  } else {
> > +    Status = EFI_INVALID_PARAMETER;
> > +  }
> > +EXIT:
> > +  gBS->RestoreTPL (TplPrevious);
> > +  return Status;
> > +}
> > --
> > 2.17.1

IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [edk2-devel] [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
  2020-05-07 16:20     ` Samer El-Haj-Mahmoud
@ 2020-05-08  0:53       ` Ni, Ray
  0 siblings, 0 replies; 6+ messages in thread
From: Ni, Ray @ 2020-05-08  0:53 UTC (permalink / raw)
  To: devel@edk2.groups.io, samer.el-haj-mahmoud@arm.com
  Cc: Leif Lindholm, Ard Biesheuvel, Kinney, Michael D

Yes. The drivers are put to vendor specific folders such as Asix, Realtek.

Inside each vendor directory, packages are created to hold the UEFI drivers.
I don't have preference between a single package to hold all drivers, multiple packages to hold individual
drivers.


> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Samer El-Haj-Mahmoud
> Sent: Friday, May 8, 2020 12:20 AM
> To: Ni, Ray <ray.ni@intel.com>; devel@edk2.groups.io
> Cc: Leif Lindholm <leif@nuviainc.com>; Ard Biesheuvel <Ard.Biesheuvel@arm.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>; Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
> Subject: Re: [edk2-devel] [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver
> 
> Thanks Ray
> 
> So you are suggesting we put the ASIX drivers under something like this?
> 
> edk2-platforms/Drivers/Asix/
> 
> If this is the case, then I think we should move the existing ASIX drivers (Ax88772 and Ax88772b) form edk2-
> platforms/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking to the new folder. It does not make sense to keep the old and
> new versions of the drivers in separate locations.
> 
> Also, I plan on submitting the Realtek USB NIC driver. I assume, following this pattern, that we will want to put it under
> edk2-platforms/Drivers/Realtek/ , correct?
> 
> Thanks,
> --Samer
> 
> 
> > -----Original Message-----
> > From: Ni, Ray <ray.ni@intel.com>
> > Sent: Thursday, May 7, 2020 1:23 AM
> > To: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>;
> > devel@edk2.groups.io
> > Cc: Leif Lindholm <leif@nuviainc.com>; Ard Biesheuvel
> > <Ard.Biesheuvel@arm.com>; Kinney, Michael D
> > <michael.d.kinney@intel.com>
> > Subject: RE: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking:
> > ASIX Ax88179 driver
> >
> > Samer,
> > Can you please create a vendor directory Asix and a standalone package
> > inside Asix to hold the Ax88179 driver?
> > OptionRomPkg is legacy package that shouldn't be used to hold all UEFI
> > drivers.
> >
> > Thanks,
> > Ray
> >
> > > -----Original Message-----
> > > From: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
> > > Sent: Thursday, May 7, 2020 11:37 AM
> > > To: devel@edk2.groups.io
> > > Cc: Ni, Ray <ray.ni@intel.com>; Leif Lindholm <leif@nuviainc.com>; Ard
> > Biesheuvel <ard.biesheuvel@arm.com>
> > > Subject: [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking:
> > ASIX Ax88179 driver
> > >
> > > This is the initial revision of ASIX USB networking UEFI driver
> > > version 2.9.0 for Ax88179 and Ax88178a
> > >
> > https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=131;71;1
> > 12
> > >
> > > Source code contributed by ASIX.
> > >
> > > Cc: Ray Ni <ray.ni@intel.com>
> > > Cc: Leif Lindholm <leif@nuviainc.com>
> > > Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
> > >
> > > Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-
> > mahmoud@arm.com>
> > > ---
> > >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > |   66 +
> > >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > | 1127 ++++++++++++++
> > >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c       |
> > 1026 +++++++++++++
> > >
> > Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNam
> > e.c |  290 ++++
> > >  Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> > |  620 ++++++++
> > >
> > Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork.c
> > | 1585 ++++++++++++++++++++
> > >  6 files changed, 4714 insertions(+)
> > >
> > > diff --git
> > a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > > new file mode 100644
> > > index 000000000000..a1883e9da1fd
> > > --- /dev/null
> > > +++
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.inf
> > > @@ -0,0 +1,66 @@
> > > +## @file
> > > +# Component description file for ASIX AX88772 USB/Ethernet driver.
> > > +#
> > > +# This module provides support for the ASIX AX88772 USB/Ethernet
> > adapter.
> > > +# Copyright (c) 2011, Intel Corporation
> > > +#
> > > +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +#
> > > +##
> > > +
> > > +[Defines]
> > > +  INF_VERSION                    = 0x00010018
> > > +  BASE_NAME                      = Ax88179
> > > +  FILE_GUID                      = 27E5D3B6-7839-47C2-8618-5D2190729BC7
> > > +  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
> > > +  VERSION_STRING                 = 1.0
> > > +
> > > +  ENTRY_POINT                    = EntryPoint
> > > +
> > > +#
> > > +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> > > +#
> > > +
> > > +[Sources.common]
> > > +  Ax88179.h
> > > +  Ax88179.c
> > > +  ComponentName.c
> > > +  DriverBinding.c
> > > +  SimpleNetwork.c
> > > +
> > > +
> > > +[Packages]
> > > +  MdePkg/MdePkg.dec
> > > +  MdeModulePkg/MdeModulePkg.dec
> > > +
> > > +[LibraryClasses]
> > > +  UefiLib
> > > +  UefiBootServicesTableLib
> > > +  BaseMemoryLib
> > > +  DebugLib
> > > +  UefiRuntimeLib
> > > +  UefiDriverEntryPoint
> > > +
> > > +[Protocols]
> > > +  gEfiDevicePathProtocolGuid           ## BY_START
> > > +  gEfiSimpleNetworkProtocolGuid        ## BY_START
> > > +  gEfiUsbIoProtocolGuid                ## TO_START
> > > +
> > > +#[Guids]
> > > +  #gEfiEventExitBootServicesGuid        ## PRODUCES ## Event
> > > +  #gEfiEventVirtualAddressChangeGuid    ## PRODUCES ## Event
> > > +  #gEfiNicIp4ConfigVariableGuid
> > > +
> > > +[Depex]
> > > +  gEfiBdsArchProtocolGuid AND
> > > +  gEfiCpuArchProtocolGuid AND
> > > +  gEfiMetronomeArchProtocolGuid AND
> > > +  gEfiMonotonicCounterArchProtocolGuid AND
> > > +  gEfiRealTimeClockArchProtocolGuid AND
> > > +  gEfiResetArchProtocolGuid AND
> > > +  gEfiRuntimeArchProtocolGuid AND
> > > +  gEfiSecurityArchProtocolGuid AND
> > > +  gEfiTimerArchProtocolGuid AND
> > > +  gEfiVariableWriteArchProtocolGuid AND
> > > +  gEfiVariableArchProtocolGuid AND
> > > +  gEfiWatchdogTimerArchProtocolGuid
> > > diff --git
> > a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > > new file mode 100644
> > > index 000000000000..82c9a3668d86
> > > --- /dev/null
> > > +++
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.h
> > > @@ -0,0 +1,1127 @@
> > > +/** @file
> > > +  Definitions for ASIX AX88179 Ethernet adapter.
> > > +
> > > +  Copyright (c) 2011, Intel Corporation
> > > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +
> > > +**/
> > > +
> > > +#ifndef _AX88179_H_
> > > +#define _AX88179_H_
> > > +
> > > +#include <Uefi.h>
> > > +
> > > +#include <Guid/EventGroup.h>
> > > +
> > > +#include <IndustryStandard/Pci.h>
> > > +
> > > +#include <Library/BaseMemoryLib.h>
> > > +#include <Library/DebugLib.h>
> > > +#include <Library/DevicePathLib.h>
> > > +#include <Library/UefiBootServicesTableLib.h>
> > > +#include <Library/UefiDriverEntryPoint.h>
> > > +#include <Library/UefiLib.h>
> > > +#include <Library/UefiRuntimeLib.h>
> > > +
> > > +#include <Protocol/DevicePath.h>
> > > +#include <Protocol/LoadedImage.h>
> > > +#include <Protocol/NetworkInterfaceIdentifier.h>
> > > +#include <Protocol/SimpleNetwork.h>
> > > +#include <Protocol/UsbIo.h>
> > > +
> > > +
> > > +#define PASS_SCT      0
> > > +#define FORCE_100Mbps 0
> > > +#define REPORTLINK    1
> > > +
> > > +
> > > +//------------------------------------------------------------------------------
> > > +//  Macros
> > > +//------------------------------------------------------------------------------
> > > +
> > > +//#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler
> > specifics. */
> > > +#define DBG_ENTER()             DEBUG (( 0xffffffff, "Entering "
> > __FUNCTION__ "\n" )) ///<  Display routine entry
> > > +#define DBG_EXIT()              DEBUG (( 0xffffffff, "Exiting " __FUNCTION__
> > "\n" ))  ///<  Display routine exit
> > > +#define DBG_EXIT_DEC(Status)    DEBUG (( 0xffffffff, "Exiting "
> > __FUNCTION__ ", Status: %d\n", Status ))      ///<  Display
> > > routine exit with decimal value
> > > +#define DBG_EXIT_HEX(Status)    DEBUG (( 0xffffffff, "Exiting "
> > __FUNCTION__ ", Status: 0x%08x\n", Status ))  ///<  Display
> > > routine exit with hex value
> > > +#define DBG_EXIT_STATUS(Status) DEBUG (( 0xffffffff, "Exiting "
> > __FUNCTION__ ", Status: %r\n", Status ))      ///<  Display
> > > routine exit with status value
> > > +#define DBG_EXIT_TF(Status)     DEBUG (( 0xffffffff, "Exiting "
> > __FUNCTION__ ", returning %s\n", (FALSE == Status) ?
> > > L"FALSE" : L"TRUE" ))  ///<  Display routine with TRUE/FALSE value
> > > +//#else   //  _MSC_VER
> > > +//#define DBG_ENTER()               ///<  Display routine entry
> > > +//#define DBG_EXIT()                ///<  Display routine exit
> > > +//#define DBG_EXIT_DEC(Status)      ///<  Display routine exit with decimal
> > value
> > > +//#define DBG_EXIT_HEX(Status)      ///<  Display routine exit with hex
> > value
> > > +//#define DBG_EXIT_STATUS(Status)   ///<  Display routine exit with status
> > value
> > > +//#define DBG_EXIT_TF(Status)       ///<  Display routine with TRUE/FALSE
> > value
> > > +//#endif  //  _MSC_VER
> > > +
> > > +#define USB_IS_IN_ENDPOINT(EndPointAddr)      (((EndPointAddr) & BIT7)
> > != 0)  ///<  Return TRUE/FALSE for IN direction
> > > +#define USB_IS_OUT_ENDPOINT(EndPointAddr)     (((EndPointAddr) &
> > BIT7) == 0)  ///<  Return TRUE/FALSE for OUT
> > > direction
> > > +#define USB_IS_BULK_ENDPOINT(Attribute)       (((Attribute) & (BIT0 |
> > BIT1)) == USB_ENDPOINT_BULK)      ///<  Return
> > > TRUE/FALSE for BULK type
> > > +#define USB_IS_INTERRUPT_ENDPOINT(Attribute)  (((Attribute) & (BIT0 |
> > BIT1)) == USB_ENDPOINT_INTERRUPT) ///<
> > > Return TRUE/FALSE for INTERRUPT type
> > > +
> > > +//------------------------------------------------------------------------------
> > > +//  Constants
> > > +//------------------------------------------------------------------------------
> > > +
> > > +#define DEBUG_RX_BROADCAST  0x40000000  ///<  Display RX broadcast
> > messages
> > > +#define DEBUG_RX_MULTICAST  0x20000000  ///<  Display RX multicast
> > messages
> > > +#define DEBUG_RX_UNICAST    0x10000000  ///<  Display RX unicast
> > messages
> > > +#define DEBUG_MAC_ADDRESS   0x08000000  ///<  Display the MAC
> > address
> > > +#define DEBUG_LINK          0x04000000  ///<  Display the link status
> > > +#define DEBUG_TX            0x02000000  ///<  Display the TX messages
> > > +#define DEBUG_PHY           0x01000000  ///<  Display the PHY register
> > values
> > > +#define DEBUG_SROM          0x00800000  ///<  Display the SROM contents
> > > +#define DEBUG_TIMER         0x00400000  ///<  Display the timer routine
> > entry/exit
> > > +#define DEBUG_TPL           0x00200000  ///<  Display the timer routine
> > entry/exit
> > > +
> > > +
> > > +#define ETHERNET_HEADER_SIZE  sizeof ( ETHERNET_HEADER )  ///<  Size
> > in bytes of the Ethernet header
> > > +#define MIN_ETHERNET_PKT_SIZE 60    ///<  Minimum packet size
> > including Ethernet header
> > > +#define MAX_ETHERNET_PKT_SIZE 1500
> > > +
> > > +#define USB_NETWORK_CLASS   0x09    ///<  USB Network class code
> > > +#define USB_BUS_TIMEOUT     1000    ///<  USB timeout in milliseconds
> > > +
> > > +//#define TIMER_MSEC          20            ///<  Polling interval for the NIC
> > > +//#define TPL_AX88179         TPL_CALLBACK    ///<  TPL for routine
> > synchronization
> > > +
> > > +
> > > +#define AX88179_BULKIN_SIZE_INK     2
> > > +#define AX88179_MAX_BULKIN_SIZE    1024 *
> > AX88179_BULKIN_SIZE_INK
> > > +#define AX88179_MAX_PKT_SIZE  2048
> > > +
> > > +#define HC_DEBUG  0
> > > +#define ADD_MACPATHNOD  1
> > > +#define BULKIN_TIMEOUT  3 //5000
> > > +#define TX_RETRY 0
> > > +#define AUTONEG_DELAY 1000000
> > > +/**
> > > +  Verify new TPL value
> > > +
> > > +  This macro which is enabled when debug is enabled verifies that
> > > +  the new TPL value is >= the current TPL value.
> > > +**/
> > > +#ifdef VERIFY_TPL
> > > +#undef VERIFY_TPL
> > > +#endif  //  VERIFY_TPL
> > > +
> > > +#if !defined(MDEPKG_NDEBUG)
> > > +
> > > +#define VERIFY_TPL(tpl)                           \
> > > +{                                                 \
> > > +  EFI_TPL PreviousTpl;                            \
> > > +                                                  \
> > > +  PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \
> > > +  gBS->RestoreTPL ( PreviousTpl );                \
> > > +  if ( PreviousTpl > tpl ) {                      \
> > > +    DEBUG (( DEBUG_ERROR, "Current TPL: %d, New TPL: %d\r\n",
> > PreviousTpl, tpl ));  \
> > > +    ASSERT ( PreviousTpl <= tpl );                \
> > > +  }                                               \
> > > +}
> > > +
> > > +#else   //  MDEPKG_NDEBUG
> > > +
> > > +#define VERIFY_TPL(tpl)
> > > +
> > > +#endif  //  MDEPKG_NDEBUG
> > > +
> > > +//------------------------------------------------------------------------------
> > > +//  Hardware Definition
> > > +//------------------------------------------------------------------------------
> > > +
> > > +#define DEV_SIGNATURE     SIGNATURE_32 ('A','X','8','8')  ///<  Signature
> > of data structures in memory
> > > +
> > > +#define VENDOR_ID         0x0B95  ///<  Vendor ID for Asix
> > > +#define PRODUCT_ID        0x1790  ///<  Product ID for the AX88179 USB
> > 10/100 Ethernet controller
> > > +#define PRODUCT_ID_178A   0x178A
> > > +
> > > +#define RESET_MSEC        1000    ///<  Reset duration
> > > +#define PHY_RESET_MSEC     100    ///<  PHY reset duration
> > > +
> > > +//
> > > +//  RX Control register
> > > +//
> > > +
> > > +
> > > +
> > > +/*Freddy*/
> > > +#define RXC_RH1M          0x0100  ///<  Rx header 1
> > > +#define RXC_RH2M          0x0200  ///<  Rx header 2
> > > +#define RXC_RH3M          0x0400  ///<  Rx header 3
> > > +/*Freddy*/
> > > +
> > > +//
> > > +//  Medium Status register
> > > +//
> > > +
> > > +
> > > +
> > > +//
> > > +//  Software PHY Select register
> > > +//
> > > +
> > > +#define SPHY_PSEL         0x01    ///<  Select internal PHY
> > > +#define SPHY_ASEL         0x02    ///<  1=Auto select, 0=Manual select
> > > +
> > > +//
> > > +//  Software Reset register
> > > +//
> > > +
> > > +#define SRR_RR            0x01    ///<  Clear receive frame length error
> > > +#define SRR_RT            0x02    ///<  Clear transmit frame length error
> > > +#define SRR_PRTE          0x04    ///<  External PHY reset pin tri-state enable
> > > +#define SRR_PRL           0x08    ///<  External PHY reset pin level
> > > +#define SRR_BZ            0x10    ///<  Force Bulk to return zero length packet
> > > +#define SRR_IPRL          0x20    ///<  Internal PHY reset control
> > > +#define SRR_IPPD          0x40    ///<  Internal PHY power down
> > > +
> > > +//
> > > +//  PHY ID values
> > > +//
> > > +
> > > +#define PHY_ID_INTERNAL   0x0003  ///<  Internal PHY
> > > +
> > > +//
> > > +//  USB Commands
> > > +//
> > > +
> > > +#define CMD_PHY_ACCESS_SOFTWARE   0x06  ///<  Software in control
> > of PHY
> > > +#define CMD_PHY_REG_READ          0x07  ///<  Read PHY register, Value:
> > PHY, Index: Register, Data: Register value
> > > +#define CMD_PHY_REG_WRITE         0x08  ///<  Write PHY register, Value:
> > PHY, Index: Register, Data: New 16-bit value
> > > +#define CMD_PHY_ACCESS_HARDWARE   0x0a  ///<  Hardware in control
> > of PHY
> > > +#define CMD_SROM_READ             0x0b  ///<  Read SROM register: Value:
> > Address, Data: Value
> > > +#define CMD_RX_CONTROL_WRITE      0x10  ///<  Set the RX control
> > register, Value: New value
> > > +#define CMD_GAPS_WRITE            0x12  ///<  Write the gaps register,
> > Value: New value
> > > +#define CMD_MAC_ADDRESS_READ      0x11  ///<  Read the MAC address,
> > Data: 6 byte MAC address
> > > +#define CMD_MAC_ADDRESS_WRITE     0x14  ///<  Set the MAC address,
> > Data: New 6 byte MAC address
> > > +
> > > +#define CMD_MEDIUM_STATUS_READ    0x1a  ///<  Read medium status
> > register, Data: Register value
> > > +#define CMD_MEDIUM_STATUS_WRITE   0x1b  ///<  Write medium status
> > register, Value: New value
> > > +#define CMD_RESET                 0x20  ///<  Reset register, Value: New value
> > > +#define CMD_PHY_SELECT            0x22  ///<  PHY select register, Value:
> > New value
> > > +
> > > +/*Freddy*/
> > > +#define CMD_RXQTC                 0x2a  ///<  RX Queue Cascade Threshold
> > Control Register
> > > +/*Freddy*/
> > > +
> > > +//------------------------------
> > > +//  USB Endpoints
> > > +//------------------------------
> > > +
> > > +#define CONTROL_ENDPOINT                0       ///<  Control endpoint
> > > +#define INTERRUPT_ENDPOINT              1       ///<  Interrupt endpoint
> > > +#define BULK_IN_ENDPOINT                2       ///<  Receive endpoint
> > > +#define BULK_OUT_ENDPOINT               3       ///<  Transmit endpoint
> > > +
> > > +//------------------------------
> > > +//  PHY Registers
> > > +//------------------------------
> > > +
> > > +
> > > +
> > > +
> > > +
> > > +#define PHY_ANER                        6       ///<  Autonegotiation expansion
> > register
> > > +
> > > +
> > > +
> > > +//  BSMR - Register 1
> > > +
> > > +
> > > +
> > > +//  ANAR and ANLPAR Registers 4, 5
> > > +
> > > +#define RXHDR_DROP 0x8000
> > > +//#define RXHDR_MIIERR 0x4000
> > > +#define RXHDR_CRCERR 0x2000
> > > +
> > > +
> > > +//------------------------------------------------------------------------------
> > > +//  Data Types
> > > +//------------------------------------------------------------------------------
> > > +
> > > +/**
> > > +  Ethernet header layout
> > > +
> > > +  IEEE 802.3-2002 Part 3 specification, section 3.1.1.
> > > +**/
> > > +#pragma pack(1)
> > > +typedef struct {
> > > +  UINT8 dest_addr[PXE_HWADDR_LEN_ETHER];  ///<  Destination LAN
> > address
> > > +  UINT8 src_addr[PXE_HWADDR_LEN_ETHER];   ///<  Source LAN address
> > > +  UINT16 type;                            ///<  Protocol or length
> > > +} ETHERNET_HEADER;
> > > +#pragma pack()
> > > +
> > > +/**
> > > +  Receive and Transmit packet structure
> > > +**/
> > > +
> > > +
> > > +
> > > +
> > > +#pragma pack(1)
> > > +typedef struct _TX_PACKET {
> > > +//  struct _TX_PACKET * pNext;       ///<  Next receive packet
> > > +  UINT32  TxHdr1;
> > > +  UINT32  TxHdr2;
> > > +  UINT8 Data[ AX88179_MAX_PKT_SIZE ]; ///<  Received packet data
> > > +} TX_PACKET;
> > > +#pragma pack()
> > > +
> > > +#pragma pack(1)
> > > +typedef struct _RX_PACKET {
> > > +  struct _RX_PACKET * pNext;
> > > +  UINT16  Length;
> > > +  UINT16  EEEE;
> > > +  UINT8 Data[ AX88179_MAX_PKT_SIZE ];
> > > +} RX_PACKET;
> > > +#pragma pack()
> > > +
> > > +
> > > +
> > > +
> > > +/**
> > > +  AX88179 control structure
> > > +
> > > +  The driver uses this structure to manage the Asix AX88179 10/100
> > > +  Ethernet controller.
> > > +**/
> > > +typedef struct {
> > > +  UINTN Signature;          ///<  Structure identification
> > > +
> > > +  //
> > > +  //  USB data
> > > +  //
> > > +  EFI_HANDLE Controller;        ///<  Controller handle
> > > +  EFI_USB_IO_PROTOCOL * pUsbIo; ///<  USB driver interface
> > > +
> > > +  //
> > > +  //  Simple network protocol data
> > > +  //
> > > +  EFI_SIMPLE_NETWORK_PROTOCOL SimpleNetwork;  ///<  Driver's
> > network stack interface
> > > +  EFI_SIMPLE_NETWORK_MODE SimpleNetworkData;  ///<  Data for
> > simple network
> > > +
> > > +  //
> > > +  // Ethernet controller data
> > > +  //
> > > +  BOOLEAN bInitialized;     ///<  Controller initialized
> > > +  UINT16 PhyId;             ///<  PHY ID
> > > +
> > > +  //
> > > +  //  Link state
> > > +  //
> > > +  BOOLEAN b100Mbps;         ///<  Current link speed, FALSE = 10 Mbps
> > > +  BOOLEAN b1000Mbps;        ///<  Current link speed, FALSE = 100/10 bps
> > > +  BOOLEAN bComplete;        ///<  Current state of auto-negotiation
> > > +  BOOLEAN bFullDuplex;      ///<  Current duplex
> > > +  BOOLEAN bLinkUp;          ///<  Current link state
> > > +  BOOLEAN bLinkIdle;        ///<  TRUE = No received traffic
> > > +  EFI_EVENT Timer;          ///<  Timer to monitor link state and receive
> > packets
> > > +  UINTN PollCount;          ///<  Number of times the autonegotiation status
> > was polled
> > > +  UINTN SkipRXCnt;
> > > +
> > > +  UINT8     *pBulkInbuf;
> > > +  UINT16    PktCnt;
> > > +  UINT8    * pCurPktHdrOff;
> > > +  UINT8     *pCurPktOff;
> > > +
> > > +  TX_PACKET * pTxTest;
> > > +
> > > +  INT8 MulticastHash[8];
> > > +  EFI_MAC_ADDRESS MAC;
> > > +
> > > +  UINT16 CurMediumStatus;
> > > +  UINT16 CurRxControl;
> > > +  VOID * pTxBuffer;
> > > +
> > > +  EFI_DEVICE_PATH_PROTOCOL                  *MyDevPath;
> > > +  BOOLEAN   Grub_f;
> > > +  BOOLEAN   bFirstRst;
> > > +  BOOLEAN   bSetZeroLen;
> > > +  UINT8 rxburst;
> > > +  UINTN usbMaxPktSize;
> > > +
> > > +} NIC_DEVICE;
> > > +
> > > +#define DEV_FROM_SIMPLE_NETWORK(a)  CR (a, NIC_DEVICE,
> > SimpleNetwork, DEV_SIGNATURE)  ///< Locate NIC_DEVICE
> > > from Simple Network Protocol
> > > +
> > > +//------------------------------------------------------------------------------
> > > +// Simple Network Protocol
> > > +//------------------------------------------------------------------------------
> > > +
> > > +/**
> > > +  Reset the network adapter.
> > > +
> > > +  Resets a network adapter and reinitializes it with the parameters that
> > > +  were provided in the previous call to Initialize ().  The transmit and
> > > +  receive queues are cleared.  Receive filters, the station address, the
> > > +  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
> > > +  this call.
> > > +
> > > +  This routine calls ::Ax88179Reset to perform the adapter specific
> > > +  reset operation.  This routine also starts the link negotiation
> > > +  by calling ::Ax88179NegotiateLinkStart.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bExtendedVerification  Indicates that the driver may
> > perform a more
> > > +                                exhaustive verification operation of the device
> > > +                                during reset.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Reset (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bExtendedVerification
> > > +  );
> > > +
> > > +/**
> > > +  Initialize the simple network protocol.
> > > +
> > > +  This routine calls ::Ax88179MacAddressGet to obtain the
> > > +  MAC address.
> > > +
> > > +  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
> > > +
> > > +  @retval EFI_SUCCESS     Setup was successful
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +SN_Setup (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +
> > > +/**
> > > +  This routine starts the network interface.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_ALREADY_STARTED   The network interface was already
> > started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Start (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  );
> > > +
> > > +/**
> > > +  Set the MAC address.
> > > +
> > > +  This function modifies or resets the current station address of a
> > > +  network interface.  If Reset is TRUE, then the current station address
> > > +  is set ot the network interface's permanent address.  If Reset if FALSE
> > > +  then the current station address is changed to the address specified by
> > > +  pNew.
> > > +
> > > +  This routine calls ::Ax88179MacAddressSet to update the MAC address
> > > +  in the network adapter.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bReset            Flag used to reset the station address to the
> > > +                                network interface's permanent address.
> > > +  @param [in] pNew              New station address to be used for the
> > network
> > > +                                interface.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_StationAddress (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bReset,
> > > +  IN EFI_MAC_ADDRESS * pNew
> > > +  );
> > > +
> > > +/**
> > > +  This function resets or collects the statistics on a network interface.
> > > +  If the size of the statistics table specified by StatisticsSize is not
> > > +  big enough for all of the statistics that are collected by the network
> > > +  interface, then a partial buffer of statistics is returned in
> > > +  StatisticsTable.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bReset            Set to TRUE to reset the statistics for the
> > network interface.
> > > +  @param [in, out] pStatisticsSize  On input the size, in bytes, of
> > StatisticsTable.  On output
> > > +                                the size, in bytes, of the resulting table of statistics.
> > > +  @param [out] pStatisticsTable A pointer to the
> > EFI_NETWORK_STATISTICS structure that
> > > +                                conains the statistics.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the
> > buffer is too small.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Statistics (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bReset,
> > > +  IN OUT UINTN * pStatisticsSize,
> > > +  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
> > > +  );
> > > +
> > > +/**
> > > +  This function stops a network interface.  This call is only valid
> > > +  if the network interface is in the started state.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Stop (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  );
> > > +
> > > +/**
> > > +  This function releases the memory buffers assigned in the Initialize() call.
> > > +  Pending transmits and receives are lost, and interrupts are cleared and
> > disabled.
> > > +  After this call, only Initialize() and Stop() calls may be used.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Shutdown (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  );
> > > +
> > > +/**
> > > +  Send a packet over the network.
> > > +
> > > +  This function places the packet specified by Header and Buffer on
> > > +  the transmit queue.  This function performs a non-blocking transmit
> > > +  operation.  When the transmit is complete, the buffer is returned
> > > +  via the GetStatus() call.
> > > +
> > > +  This routine calls ::Ax88179Rx to empty the network adapter of
> > > +  receive packets.  The routine then passes the transmit packet
> > > +  to the network adapter.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] HeaderSize        The size, in bytes, of the media header to be
> > filled in by
> > > +                                the Transmit() function.  If HeaderSize is non-zero, then
> > > +                                it must be equal to SimpleNetwork->Mode-
> > >MediaHeaderSize
> > > +                                and DestAddr and Protocol parameters must not be
> > NULL.
> > > +  @param [in] BufferSize        The size, in bytes, of the entire packet (media
> > header and
> > > +                                data) to be transmitted through the network interface.
> > > +  @param [in] pBuffer           A pointer to the packet (media header
> > followed by data) to
> > > +                                to be transmitted.  This parameter can not be NULL.  If
> > > +                                HeaderSize is zero, then the media header is Buffer must
> > > +                                already be filled in by the caller.  If HeaderSize is
> > nonzero,
> > > +                                then the media header will be filled in by the Transmit()
> > > +                                function.
> > > +  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize
> > is zero, then
> > > +                                this parameter is ignored.  If HeaderSize is nonzero and
> > > +                                SrcAddr is NULL, then SimpleNetwork->Mode-
> > >CurrentAddress
> > > +                                is used for the source HW MAC address.
> > > +  @param [in] pDestAddr         The destination HW MAC address.  If
> > HeaderSize is zero, then
> > > +                                this parameter is ignored.
> > > +  @param [in] pProtocol         The type of header to build.  If HeaderSize is
> > zero, then
> > > +                                this parameter is ignored.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_NOT_READY         The network interface is too busy to
> > accept this transmit request.
> > > +  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too
> > small.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Transmit (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN UINTN HeaderSize,
> > > +  IN UINTN BufferSize,
> > > +  IN VOID * pBuffer,
> > > +  IN EFI_MAC_ADDRESS * pSrcAddr,
> > > +  IN EFI_MAC_ADDRESS * pDestAddr,
> > > +  IN UINT16 * pProtocol
> > > +  );
> > > +
> > > +//------------------------------------------------------------------------------
> > > +// Support Routines
> > > +//------------------------------------------------------------------------------
> > > +
> > > +/**
> > > +  Get the MAC address
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to request the MAC
> > > +  address from the network adapter.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [out] pMacAddress      Address of a six byte buffer to receive the
> > MAC address.
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address is available.
> > > +  @retval other                The MAC address is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179MacAddressGet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  OUT UINT8 * pMacAddress
> > > +  );
> > > +
> > > +
> > > +/**
> > > +  Clear the multicast hash table
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +
> > > +**/
> > > +VOID
> > > +Ax88179MulticastClear (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +
> > > +/**
> > > +  Enable a multicast address in the multicast hash table
> > > +
> > > +  This routine calls ::Ax88179Crc to compute the hash bit for
> > > +  this MAC address.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> > the MAC address.
> > > +
> > > +**/
> > > +VOID
> > > +Ax88179MulticastSet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT8 * pMacAddress
> > > +  );
> > > +
> > > +/**
> > > +  Start the link negotiation
> > > +
> > > +  This routine calls ::Ax88179PhyWrite to start the PHY's link
> > > +  negotiation.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +
> > > +  @retval EFI_SUCCESS          The link negotiation was started.
> > > +  @retval other                Failed to start the link negotiation.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179NegotiateLinkStart (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +
> > > +/**
> > > +  Complete the negotiation of the PHY link
> > > +
> > > +  This routine calls ::Ax88179PhyRead to determine if the
> > > +  link negotiation is complete.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in, out] pPollCount  Address of number of times this routine
> > was polled
> > > +  @param [out] pbComplete      Address of boolean to receive complate
> > status.
> > > +  @param [out] pbLinkUp        Address of boolean to receive link status,
> > TRUE=up.
> > > +  @param [out] pbHiSpeed       Address of boolean to receive link speed,
> > TRUE=100Mbps.
> > > +  @param [out] pbFullDuplex    Address of boolean to receive link duplex,
> > TRUE=full.
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address is available.
> > > +  @retval other                The MAC address is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179NegotiateLinkComplete (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN OUT UINTN * pPollCount,
> > > +  OUT BOOLEAN * pbComplete,
> > > +  OUT BOOLEAN * pbLinkUp,
> > > +  OUT BOOLEAN * pbHiSpeed,
> > > +  OUT BOOLEAN * pbGigaSpeed,
> > > +  OUT BOOLEAN * pbFullDuplex
> > > +  );
> > > +
> > > +/**
> > > +  Read a register from the PHY
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to read a PHY register.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] RegisterAddress  Number of the register to read.
> > > +  @param [in, out] pPhyData    Address of a buffer to receive the PHY
> > register value
> > > +
> > > +  @retval EFI_SUCCESS          The PHY data is available.
> > > +  @retval other                The PHY data is not valid.
> > > +
> > > +**/
> > > +
> > > +
> > > +/**
> > > +  Reset the AX88179
> > > +
> > > +  This routine uses ::Ax88179UsbCommand to reset the network
> > > +  adapter.  This routine also uses ::Ax88179PhyWrite to reset
> > > +  the PHY.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address is available.
> > > +  @retval other                The MAC address is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179Reset (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +#if 0
> > > +/**
> > > +  Receive a frame from the network.
> > > +
> > > +  This routine polls the USB receive interface for a packet.  If a packet
> > > +  is available, this routine adds the receive packet to the list of
> > > +  pending receive packets.
> > > +
> > > +  This routine calls ::Ax88179NegotiateLinkComplete to verify
> > > +  that the link is up.  This routine also calls ::SN_Reset to
> > > +  reset the network adapter when necessary.  Finally this
> > > +  routine attempts to receive one or more packets from the
> > > +  network adapter.
> > > +
> > > +  @param [in] pNicDevice  Pointer to the NIC_DEVICE structure
> > > +  @param [in] bUpdateLink TRUE = Update link status
> > > +
> > > +**/
> > > +VOID
> > > +Ax88179Rx (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN BOOLEAN bUpdateLink
> > > +  );
> > > +#endif
> > > +/**
> > > +  Enable or disable the receiver
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to update the
> > > +  receiver state.  This routine also calls ::Ax88179MacAddressSet
> > > +  to establish the MAC address for the network adapter.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] RxFilter         Simple network RX filter mask value
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address was set.
> > > +  @retval other                The MAC address was not set.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179RxControl (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT32 RxFilter
> > > +  );
> > > +
> > > +  EFI_STATUS
> > > +Ax88179ReloadSrom  (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +
> > > +/**
> > > +  Read an SROM location
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to read data from the
> > > +  SROM.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] Address          SROM address
> > > +  @param [out] pData           Buffer to receive the data
> > > +
> > > +  @retval EFI_SUCCESS          The read was successful
> > > +  @retval other                The read failed
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179SromRead (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT32 Address,
> > > +  OUT UINT16 * pData
> > > +  );
> > > +
> > > +
> > > +EFI_STATUS
> > > +Ax88179EnableSromWrite  (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +
> > > +
> > > +EFI_STATUS
> > > +Ax88179DisableSromWrite  (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179SromWrite (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT32 Address,
> > > +  OUT UINT16 * pData
> > > +  );
> > > +
> > > +/**
> > > +  Send a command to the USB device.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] pRequest         Pointer to the request structure
> > > +  @param [in, out] pBuffer     Data buffer address
> > > +
> > > +  @retval EFI_SUCCESS          The USB transfer was successful
> > > +  @retval other                The USB transfer failed
> > > +
> > > +**/
> > > +
> > > +EFI_STATUS
> > > +Ax88179UsbCommand (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN USB_DEVICE_REQUEST * pRequest,
> > > +  IN OUT VOID * pBuffer
> > > +  );
> > > +
> > > +//------------------------------------------------------------------------------
> > > +// EFI Component Name Protocol Support
> > > +//------------------------------------------------------------------------------
> > > +extern EFI_DRIVER_BINDING_PROTOCOL   gDriverBinding;
> > > +extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;  ///<
> > Component name protocol declaration
> > > +extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2; ///<
> > Component name 2 protocol declaration
> > > +
> > > +/**
> > > +  Retrieves a Unicode string that is the user readable name of the driver.
> > > +
> > > +  This function retrieves the user readable name of a driver in the form of
> > a
> > > +  Unicode string. If the driver specified by This has a user readable name in
> > > +  the language specified by Language, then a pointer to the driver name is
> > > +  returned in DriverName, and EFI_SUCCESS is returned. If the driver
> > specified
> > > +  by This does not support the language specified by Language,
> > > +  then EFI_UNSUPPORTED is returned.
> > > +
> > > +  @param [in] pThis             A pointer to the
> > EFI_COMPONENT_NAME2_PROTOCOL or
> > > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > > +                                array indicating the language. This is the
> > > +                                language of the driver name that the caller is
> > > +                                requesting, and it must match one of the
> > > +                                languages specified in SupportedLanguages. The
> > > +                                number of languages supported by a driver is up
> > > +                                to the driver writer. Language is specified
> > > +                                in RFC 3066 or ISO 639-2 language code format.
> > > +  @param [out] ppDriverName     A pointer to the Unicode string to return.
> > > +                                This Unicode string is the name of the
> > > +                                driver specified by This in the language
> > > +                                specified by Language.
> > > +
> > > +  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
> > > +                                This and the language specified by Language was
> > > +                                returned in DriverName.
> > > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > > +  @retval EFI_INVALID_PARAMETER DriverName is NULL.
> > > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> > support
> > > +                                the language specified by Language.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +GetDriverName (
> > > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > > +  IN  CHAR8 * pLanguage,
> > > +  OUT CHAR16 ** ppDriverName
> > > +  );
> > > +
> > > +
> > > +/**
> > > +  Retrieves a Unicode string that is the user readable name of the
> > controller
> > > +  that is being managed by a driver.
> > > +
> > > +  This function retrieves the user readable name of the controller specified
> > by
> > > +  ControllerHandle and ChildHandle in the form of a Unicode string. If the
> > > +  driver specified by This has a user readable name in the language
> > specified by
> > > +  Language, then a pointer to the controller name is returned in
> > ControllerName,
> > > +  and EFI_SUCCESS is returned.  If the driver specified by This is not
> > currently
> > > +  managing the controller specified by ControllerHandle and ChildHandle,
> > > +  then EFI_UNSUPPORTED is returned.  If the driver specified by This does
> > not
> > > +  support the language specified by Language, then EFI_UNSUPPORTED is
> > returned.
> > > +
> > > +  @param [in] pThis             A pointer to the
> > EFI_COMPONENT_NAME2_PROTOCOL or
> > > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > > +  @param [in] ControllerHandle  The handle of a controller that the driver
> > > +                                specified by This is managing.  This handle
> > > +                                specifies the controller whose name is to be
> > > +                                returned.
> > > +  @param [in] ChildHandle       The handle of the child controller to
> > retrieve
> > > +                                the name of.  This is an optional parameter that
> > > +                                may be NULL.  It will be NULL for device
> > > +                                drivers.  It will also be NULL for a bus drivers
> > > +                                that wish to retrieve the name of the bus
> > > +                                controller.  It will not be NULL for a bus
> > > +                                driver that wishes to retrieve the name of a
> > > +                                child controller.
> > > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > > +                                array indicating the language.  This is the
> > > +                                language of the driver name that the caller is
> > > +                                requesting, and it must match one of the
> > > +                                languages specified in SupportedLanguages. The
> > > +                                number of languages supported by a driver is up
> > > +                                to the driver writer. Language is specified in
> > > +                                RFC 3066 or ISO 639-2 language code format.
> > > +  @param [out] ppControllerName A pointer to the Unicode string to
> > return.
> > > +                                This Unicode string is the name of the
> > > +                                controller specified by ControllerHandle and
> > > +                                ChildHandle in the language specified by
> > > +                                Language from the point of view of the driver
> > > +                                specified by This.
> > > +
> > > +  @retval EFI_SUCCESS           The Unicode string for the user readable
> > name in
> > > +                                the language specified by Language for the
> > > +                                driver specified by This was returned in
> > > +                                DriverName.
> > > +  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
> > EFI_HANDLE.
> > > +  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not
> > a valid
> > > +                                EFI_HANDLE.
> > > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > > +  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> > > +  @retval EFI_UNSUPPORTED       The driver specified by This is not
> > currently
> > > +                                managing the controller specified by
> > > +                                ControllerHandle and ChildHandle.
> > > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> > support
> > > +                                the language specified by Language.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +GetControllerName (
> > > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > > +  IN  EFI_HANDLE ControllerHandle,
> > > +  IN OPTIONAL EFI_HANDLE ChildHandle,
> > > +  IN  CHAR8 * pLanguage,
> > > +  OUT CHAR16 ** ppControllerName
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179SetMedium (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  );
> > > +//-----------------------------------------------------------------------------
> > > +
> > > +
> > > +
> > > +
> > > +
> > > +#define ACCESS_MAC  0x01
> > > +#define ACCESS_PHY  0x02
> > > +
> > > +#define PLSR                0x02
> > > +  #define PLSR_USB_FS  0x01
> > > +  #define PLSR_USB_HS  0x02
> > > +  #define PLSR_USB_SS  0x04
> > > +
> > > +#define NODE_ID               0x10
> > > +
> > > +#define RXCTL                 0x0b
> > > +  #define RXCTL_PRO         0x0001  ///<  Receive all packets
> > > +  #define RXCTL_AMALL       0x0002  ///<  Receive all multicast packets
> > > +  #define RXCTL_SEP         0x0004  ///<  Save error packets
> > > +  #define RXCTL_AB          0x0008  ///<  Receive broadcast packets
> > > +  #define RXCTL_AM          0x0010  ///<  Use multicast destination address
> > hash table
> > > +  #define RXCTL_AP          0x0020  ///<  Accept physical address from
> > Multicast Filter
> > > +  #define RXCTL_ARP         0x0040  ///<  Accept runt packet
> > > +  #define RXCTL_SO          0x0080  ///<  Start operation
> > > +  #define RXCTL_DROPCRCERR  0x0100  ///<  RX header 1 formate
> > selection
> > > +  #define RXCTL_IPE         0x0200  ///<  RX header 2 formate selection
> > > +  #define RXCTL_TXPADCRC    0x0400  ///<  RX header 3 formate selection
> > > +  #define RXCTL_LPBK        0x1000  ///<  MAC loop back for diagnostic
> > > +
> > > +#define MULCATFLTARRY       0x16  ///<  Write the multicast hash table,
> > Data: New 8 byte value
> > > +
> > > +#define MEDIUMSTSMOD          0x22
> > > +  #define MEDIUMSTSMOD_GM   0x0001  ///<  Gigabit Mode
> > > +  #define MEDIUMSTSMOD_FD   0x0002  ///<  Full duplex
> > > +  #define MEDIUMSTSMOD_ONE  0x0004  ///<  Must be one
> > > +  #define MEDIUMSTSMOD_ENCK 0x0008  ///<  Add in 04h
> > > +  #define MEDIUMSTSMOD_RFC  0x0010  ///<  RX flow control enable
> > > +  #define MEDIUMSTSMOD_TFC  0x0020  ///<  TX flow control enable
> > > +  #define MEDIUMSTSMOD_JFE  0x0040  ///<  Pause frame enable
> > > +  #define MEDIUMSTSMOD_PF   0x0080  ///<  Pause frame enable
> > > +  #define MEDIUMSTSMOD_RE   0x0100  ///<  Receive enable
> > > +  #define MEDIUMSTSMOD_PS   0x0200  ///<  Port speed 1=100, 0=10
> > Mbps
> > > +  #define MEDIUMSTSMOD_SBP  0x0800  ///<  Stop back pressure
> > > +  #define MEDIUMSTSMOD_SM   0x1000  ///<  Super MAC support
> > > +
> > > +#define MONITORSTAUS          0x24
> > > +  #define  MONITORSTAUS_PMETYPE   0x40
> > > +  #define  MONITORSTAUS_PMEPOL    0x20
> > > +
> > > +#define PHYPWRRSTCTL          0x26
> > > +  #define PHYPWRRSTCTL_IPRL     0x20
> > > +  #define PHYPWRRSTCTL_OSCDSSEL 0x80
> > > +  #define PHYPWRRSTCTL_BZTYPE       0x4
> > > +  #define PHYPWRRSTCTL_BZ      0x10
> > > +
> > > +#define SISSR                 0x28
> > > +  #define SISSR_PSEL        0x01
> > > +  #define SISSR_ASEL        0x02
> > > +
> > > +#define RXBINQCTRL            0x2e
> > > +  #define RXBINQCTRL_TIMEN  0x01
> > > +  #define RXBINQCTRL_IFGEN  0x02
> > > +  #define RXBINQCTRL_SIZEN  0x04
> > > +
> > > +#define RXBINQTIMERL          0x2f
> > > +#define RXBINQTIMERH          0x30
> > > +#define RXBINQSIZE            0x31
> > > +#define RXBINQIFG             0x32
> > > +
> > > +#define CLKSELECT             0x33
> > > +  #define CLKSELECT_ACS       0x02
> > > +  #define CLKSELECT_BCS       0x01
> > > +
> > > +#define PAUSE_WATERLVL_HIGH   0x54
> > > +#define PAUSE_WATERLVL_LOW    0x55
> > > +
> > > +#define RXFREEBUF             0x57
> > > +  #define MAX_RXBUF_PAGE    0x067F
> > > +
> > > +#define PHY_BMCR                        0       ///<  Control register
> > > +  #define BMCR_RESET                      0x8000  ///<  1 = Reset the PHY, bit
> > clears after reset
> > > +  #define BMCR_LOOPBACK                   0x4000  ///<  1 = Loopback enabled
> > > +  #define BMCR_AUTONEGOTIATION_ENABLE     0x1000  ///<  1 = Enable
> > autonegotiation
> > > +  #define BMCR_POWER_DOWN                 0x0800  ///<  1 = Power down
> > > +  #define BMCR_ISOLATE                    0x0400  ///<  0 = Isolate PHY
> > > +  #define BMCR_RESTART_AUTONEGOTIATION    0x0200  ///<  1 = Restart
> > autonegotiation
> > > +  #define BMCR_FULL_DUPLEX                0x0100  ///<  Full duplex operation
> > > +  #define BMCR_COLLISION_TEST             0x0080  ///<  1 = Collision test
> > enabled
> > > +  #define BMCR_1000MBPS                   0x40  ///<  Forced mode in
> > 1000Mbps
> > > +  #define BMCR_100MBPS                    0x2000    ///<  Forced mode in
> > 10Mbps
> > > +
> > > +#define PHY_BMSR                        1       ///<  Status register
> > > +  #define BMSR_100BASET4                  0x8000  ///<  1 = 100BASE-T4 mode
> > > +  #define BMSR_100BASETX_FDX              0x4000  ///<  1 = 100BASE-TX full
> > duplex
> > > +  #define BMSR_100BASETX_HDX              0x2000  ///<  1 = 100BASE-TX
> > half duplex
> > > +  #define BMSR_10BASET_FDX                0x1000  ///<  1 = 10BASE-T full
> > duplex
> > > +  #define BMSR_10BASET_HDX                0x0800  ///<  1 = 10BASE-T half
> > duplex
> > > +  #define BMSR_MF                         0x0040  ///<  1 = PHY accepts frames
> > with preamble suppressed
> > > +  #define BMSR_AUTONEG_CMPLT              0x0020  ///<  1 =
> > Autonegotiation complete
> > > +  #define BMSR_RF                         0x0010  ///<  1 = Remote fault
> > > +  #define BMSR_AUTONEG                    0x0008  ///<  1 = Able to perform
> > autonegotiation
> > > +  #define BMSR_LINKST                     0x0004  ///<  1 = Link up
> > > +  #define BMSR_JABBER_DETECT              0x0002  ///<  1 = jabber condition
> > detected
> > > +  #define BMSR_EXTENDED_CAPABILITY        0x0001  ///<  1 = Extended
> > register capable
> > > +
> > > +#define PHY_ANAR                        4       ///<  Autonegotiation advertisement
> > register
> > > +  #define AN_NP                           0x8000  ///<  1 = Next page available
> > > +  #define AN_RF                           0x2000  ///<  1 = Remote fault indicated by
> > link partner
> > > +  #define AN_FCS                          0x0400  ///<  1 = Flow control ability
> > > +  #define AN_T4                           0x0200  ///<  1 = 100BASE-T4 support
> > > +  #define AN_TX_FDX                       0x0100  ///<  1 = 100BASE-TX Full duplex
> > > +  #define AN_TX_HDX                       0x0080  ///<  1 = 100BASE-TX support
> > > +  #define AN_10_FDX                       0x0040  ///<  1 = 10BASE-T Full duplex
> > > +  #define AN_10_HDX                       0x0020  ///<  1 = 10BASE-T support
> > > +  #define AN_CSMA_CD                      0x0001  ///<  1 = IEEE 802.3 CSMA/CD
> > support
> > > +
> > > +#define PHY_ANLPAR                      5       ///<  Autonegotiation link parter
> > ability register
> > > +
> > > +#define PHY_PHYSR                       0x11
> > > +  #define PHYSR_SPEED_MASK                0xC000
> > > +  #define PHYSR_1000                      0x8000
> > > +  #define PHYSR_100                       0x4000
> > > +  #define PHYSR_FULLDUP                   0x2000
> > > +  #define PHYSR_LINK                      0x400
> > > +
> > > +EFI_STATUS
> > > +Ax88179PhyRead (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT8 RegisterAddress,
> > > +  IN OUT UINT16 * pPhyData
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179PhyWrite (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT8 RegisterAddress,
> > > +  IN UINT16 PhyData
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179MacRead (
> > > +  IN  UINT8 Offset,
> > > +  IN  UINT8 Length,
> > > +  IN  NIC_DEVICE * pNicDevice,
> > > +  IN  OUT  VOID * pData
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179SetIInInterval (
> > > +  IN  NIC_DEVICE * pNicDevice,
> > > +  IN  UINT8 Offset
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179MacWrite (
> > > +  IN  UINT8 Offset,
> > > +  IN  UINT8 Length,
> > > +  IN  NIC_DEVICE * pNicDevice,
> > > +  IN  OUT  VOID * pData
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179MacAddressGet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  OUT UINT8 * pMacAddress
> > > +  );
> > > +
> > > +EFI_STATUS
> > > +Ax88179MacAddressSet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  OUT UINT8 * pMacAddress
> > > +  );
> > > +
> > > +BOOLEAN
> > > +Ax88179GetLinkStatus (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +);
> > > +
> > > +EFI_STATUS
> > > +Ax88179BulkIn(
> > > +  IN NIC_DEVICE * pNicDevice
> > > +);
> > > +
> > > +
> > > +#endif  //  _AX88179_H_
> > > diff --git
> > a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> > > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> > > new file mode 100644
> > > index 000000000000..7b2db9b74285
> > > --- /dev/null
> > > +++
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/Ax88179.c
> > > @@ -0,0 +1,1026 @@
> > > + /** @file
> > > +  Implement the interface to the AX88179 Ethernet controller.
> > > +
> > > +  This module implements the interface to the ASIX AX88179
> > > +  USB to Ethernet MAC with integrated 10/100 PHY.  Note that this
> > implementation
> > > +  only supports the integrated PHY since no other test cases were
> > available.
> > > +
> > > +  Copyright (c) 2011, Intel Corporation
> > > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +
> > > +**/
> > > +
> > > +#include "Ax88179.h"
> > > +
> > > +
> > > +/**
> > > +  Compute the CRC
> > > +
> > > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> > the MAC address.
> > > +
> > > +  @returns The CRC-32 value associated with this MAC address
> > > +
> > > +**/
> > > +UINT32
> > > +Ax88179Crc (
> > > +  IN UINT8 * pMacAddress
> > > +  )
> > > +{
> > > +  UINT32 BitNumber;
> > > +  INT32 Carry;
> > > +  INT32 Crc;
> > > +  UINT32 Data;
> > > +  UINT8 * pEnd;
> > > +
> > > +  //
> > > +  //  Walk the MAC address
> > > +  //
> > > +  Crc = -1;
> > > +  pEnd = &pMacAddress[ PXE_HWADDR_LEN_ETHER ];
> > > +  while ( pEnd > pMacAddress ) {
> > > +    Data = *pMacAddress++;
> > > +
> > > +
> > > +    //
> > > +    //  CRC32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 +
> > x4 + x2 + x + 1
> > > +    //
> > > +    //          1 0000 0100 1100 0001 0001 1101 1011 0111
> > > +    //
> > > +    for ( BitNumber = 0; 8 > BitNumber; BitNumber++ ) {
> > > +      Carry = (( Crc >> 31 ) & 1 ) ^ ( Data & 1 );
> > > +      Crc <<= 1;
> > > +      if ( 0 != Carry ) {
> > > +        Crc ^= 0x04c11db7;
> > > +      }
> > > +      Data >>= 1;
> > > +    }
> > > +  }
> > > +
> > > +  //
> > > +  //  Return the CRC value
> > > +  //
> > > +  return (UINT32) Crc;
> > > +}
> > > +
> > > +/**
> > > +  Get the MAC address
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to request the MAC
> > > +  address from the network adapter.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [out] pMacAddress      Address of a six byte buffer to receive the
> > MAC address.
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address is available.
> > > +  @retval other                The MAC address is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179MacAddressGet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  OUT UINT8 * pMacAddress
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status  = Ax88179MacRead (NODE_ID,
> > > +                            PXE_HWADDR_LEN_ETHER,
> > > +                            pNicDevice,
> > > +                            pMacAddress);
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Set the MAC address
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to set the MAC address
> > > +  in the network adapter.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> > the new MAC address.
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address was set.
> > > +  @retval other                The MAC address was not set.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179MacAddressSet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  OUT UINT8 * pMacAddress
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status  = Ax88179MacWrite (NODE_ID,
> > > +                             PXE_HWADDR_LEN_ETHER,
> > > +                             pNicDevice,
> > > +                             pMacAddress);
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Clear the multicast hash table
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +
> > > +**/
> > > +VOID
> > > +Ax88179MulticastClear (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  int i = 0;
> > > +  //
> > > +  // Clear the multicast hash table
> > > +  //
> > > +
> > > +  for ( i = 0 ; i < 8 ; i++ )
> > > +      pNicDevice->MulticastHash[i] = 0;
> > > +}
> > > +/**
> > > +  Enable a multicast address in the multicast hash table
> > > +
> > > +  This routine calls ::Ax88179Crc to compute the hash bit for
> > > +  this MAC address.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] pMacAddress      Address of a six byte buffer to containing
> > the MAC address.
> > > +
> > > +**/
> > > +VOID
> > > +Ax88179MulticastSet (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT8 * pMacAddress
> > > +  )
> > > +{
> > > +  UINT32 Crc;
> > > +  //
> > > +  // Compute the CRC on the destination address
> > > +  //
> > > +  Crc = Ax88179Crc (pMacAddress) >> 26;
> > > +  //
> > > +  //  Set the bit corresponding to the destination address
> > > +  //
> > > +  pNicDevice->MulticastHash [ Crc >> 3 ] |= ( 1<< (Crc& 7));
> > > +}
> > > +
> > > +/**
> > > +  Start the link negotiation
> > > +
> > > +  This routine calls ::Ax88179PhyWrite to start the PHY's link
> > > +  negotiation.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +
> > > +  @retval EFI_SUCCESS          The link negotiation was started.
> > > +  @retval other                Failed to start the link negotiation.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179NegotiateLinkStart (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  UINT16 Control = 0;
> > > +  EFI_STATUS Status;
> > > +
> > > +#if FORCE_100Mbps
> > > +  Ax88179PhyRead ( pNicDevice,
> > > +                   0x09,
> > > +                   &Control );
> > > +  Control &= 0xFCFF;
> > > +  Ax88179PhyWrite ( pNicDevice, 0x09, Control );
> > > +#endif
> > > +
> > > +  //
> > > +  // Set the link speed and duplex
> > > +  //
> > > +  Control = BMCR_AUTONEGOTIATION_ENABLE
> > > +          | BMCR_RESTART_AUTONEGOTIATION;
> > > +  if ( pNicDevice->b1000Mbps ) {
> > > +    Control |= BMCR_1000MBPS;
> > > +  } else if ( pNicDevice->b100Mbps ) {
> > > +    Control |= BMCR_100MBPS;
> > > +  }
> > > +
> > > +  if ( pNicDevice->bFullDuplex ) {
> > > +    Control |= BMCR_FULL_DUPLEX;
> > > +  }
> > > +  Status = Ax88179PhyWrite ( pNicDevice, PHY_BMCR, Control );
> > > +  if (!EFI_ERROR(Status))
> > > +    gBS->Stall(3000000);
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Complete the negotiation of the PHY link
> > > +
> > > +  This routine calls ::Ax88179PhyRead to determine if the
> > > +  link negotiation is complete.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in, out] pPollCount  Address of number of times this routine
> > was polled
> > > +  @param [out] pbComplete      Address of boolean to receive complate
> > status.
> > > +  @param [out] pbLinkUp        Address of boolean to receive link status,
> > TRUE=up.
> > > +  @param [out] pbHiSpeed       Address of boolean to receive link speed,
> > TRUE=100Mbps.
> > > +  @param [out] pbFullDuplex    Address of boolean to receive link duplex,
> > TRUE=full.
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address is available.
> > > +  @retval other                The MAC address is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179NegotiateLinkComplete (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN OUT UINTN * pPollCount,
> > > +  OUT BOOLEAN * pbComplete,
> > > +  OUT BOOLEAN * pbLinkUp,
> > > +  OUT BOOLEAN * pbHiSpeed,
> > > +  OUT BOOLEAN * pbGigaSpeed,
> > > +  OUT BOOLEAN * pbFullDuplex
> > > +  )
> > > +{
> > > +  UINT16 PhyData;
> > > +  EFI_STATUS  Status;
> > > +
> > > +  //
> > > +  //  Determine if the link is up.
> > > +  //
> > > +  *pbComplete = FALSE;
> > > +
> > > +  //
> > > +  //  Get the link status
> > > +  //
> > > +  Status = Ax88179PhyRead ( pNicDevice,
> > > +                            PHY_PHYSR,
> > > +                            &PhyData );
> > > +
> > > +  if ( !EFI_ERROR ( Status )) {
> > > +    *pbLinkUp =  (BOOLEAN)( 0 != ( PhyData & PHYSR_LINK ));
> > > +    if (*pbLinkUp) {
> > > +      //
> > > +      //  Determine if the autonegotiation is complete.
> > > +      //
> > > +      Status = Ax88179PhyRead ( pNicDevice,
> > > +                            PHY_BMSR,
> > > +                            &PhyData );
> > > +      if ( !EFI_ERROR (Status)) {
> > > +          *pbComplete =  (BOOLEAN)( 0 != ( PhyData &
> > BMSR_AUTONEG_CMPLT ));
> > > +
> > > +          if ( 0 != *pbComplete ) {
> > > +            //
> > > +            //  Get the partners capabilities.
> > > +            //
> > > +            Status = Ax88179PhyRead ( pNicDevice,
> > > +                                      PHY_PHYSR,
> > > +                                      &PhyData );
> > > +            if ( !EFI_ERROR ( Status )) {
> > > +              //
> > > +              //  Autonegotiation is complete
> > > +              //  Determine the link speed.
> > > +              //
> > > +              *pbGigaSpeed = (BOOLEAN) (( PhyData & PHYSR_SPEED_MASK )
> > == PHYSR_1000 );
> > > +              *pbHiSpeed = (BOOLEAN)(( PhyData & PHYSR_SPEED_MASK ) ==
> > PHYSR_100 );
> > > +
> > > +              //
> > > +              //  Determine the link duplex.
> > > +              //
> > > +              *pbFullDuplex = (BOOLEAN)( (PhyData & PHYSR_FULLDUP) ==
> > PHYSR_FULLDUP);
> > > +          }
> > > +        }
> > > +      }
> > > +    }
> > > +  }
> > > +
> > > +
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Read a register from the PHY
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to read a PHY register.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] RegisterAddress  Number of the register to read.
> > > +  @param [in, out] pPhyData    Address of a buffer to receive the PHY
> > register value
> > > +
> > > +  @retval EFI_SUCCESS          The PHY data is available.
> > > +  @retval other                The PHY data is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179PhyRead (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT8 RegisterAddress,
> > > +  IN OUT UINT16 * pPhyData
> > > +  )
> > > +{
> > > +  USB_DEVICE_REQUEST SetupMsg;
> > > +  EFI_STATUS Status;
> > > +
> > > +  //
> > > +  //  Read the PHY register address.
> > > +  //
> > > +  SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
> > > +                       | USB_REQ_TYPE_VENDOR
> > > +                       | USB_TARGET_DEVICE;
> > > +  SetupMsg.Request = ACCESS_PHY;
> > > +  SetupMsg.Value = pNicDevice->PhyId;
> > > +  SetupMsg.Index = RegisterAddress;
> > > +  SetupMsg.Length = sizeof ( *pPhyData );
> > > +  Status = Ax88179UsbCommand ( pNicDevice,
> > > +                               &SetupMsg,
> > > +                               pPhyData );
> > > +
> > > +  //
> > > +  //  Return the operation status.
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Write to a PHY register
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to write a PHY register.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] RegisterAddress  Number of the register to read.
> > > +  @param [in] PhyData          Address of a buffer to receive the PHY
> > register value
> > > +
> > > +  @retval EFI_SUCCESS          The PHY data was written.
> > > +  @retval other                Failed to wwrite the PHY register.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179PhyWrite (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT8 RegisterAddress,
> > > +  IN UINT16 PhyData
> > > +  )
> > > +{
> > > +  USB_DEVICE_REQUEST SetupMsg;
> > > +  EFI_STATUS Status;
> > > +
> > > +  //
> > > +  //  Write the PHY register
> > > +  //
> > > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > > +                       | USB_TARGET_DEVICE;
> > > +  SetupMsg.Request = ACCESS_PHY;
> > > +  SetupMsg.Value = pNicDevice->PhyId;
> > > +  SetupMsg.Index = RegisterAddress;
> > > +  SetupMsg.Length = sizeof ( PhyData );
> > > +  Status = Ax88179UsbCommand ( pNicDevice,
> > > +                               &SetupMsg,
> > > +                               &PhyData );
> > > +  //
> > > +  //  Return the operation status.
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Reset the AX88179
> > > +
> > > +  This routine uses ::Ax88179UsbCommand to reset the network
> > > +  adapter.  This routine also uses ::Ax88179PhyWrite to reset
> > > +  the PHY.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +
> > > +  @retval EFI_SUCCESS          The MAC address is available.
> > > +  @retval other                The MAC address is not valid.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179Reset (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +  UINT16  val;
> > > +  UINT8 val8;
> > > +
> > > +  Status = Ax88179SetIInInterval(pNicDevice, 0xff);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val8 = 0;
> > > +  Status  = Ax88179MacRead (PLSR,
> > > +                            sizeof(val8),
> > > +                            pNicDevice,
> > > +                            &val8);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  if (val8 & PLSR_USB_SS)
> > > +    pNicDevice->usbMaxPktSize = 1024;
> > > +  else
> > > +    pNicDevice->usbMaxPktSize = 512;
> > > +
> > > +  val = 0;
> > > +  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> > > +                             sizeof (val),
> > > +                             pNicDevice,
> > > +                             &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  gBS->Stall ( 10000 );
> > > +
> > > +  val =  PHYPWRRSTCTL_IPRL;
> > > +  Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> > > +                             sizeof (val),
> > > +                             pNicDevice,
> > > +                             &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  gBS->Stall ( 200000 );
> > > +
> > > +  val = CLKSELECT_BCS | CLKSELECT_ACS;
> > > +  Status = Ax88179MacWrite ( CLKSELECT,
> > > +                             1,
> > > +                             pNicDevice,
> > > +                             &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  gBS->Stall ( 100000 );
> > > +
> > > +  val = 0x52;
> > > +  Status = Ax88179MacWrite ( PAUSE_WATERLVL_HIGH,
> > > +                             1,
> > > +                             pNicDevice,
> > > +                             &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val = 0x34;
> > > +  Status = Ax88179MacWrite ( PAUSE_WATERLVL_LOW,
> > > +                             1,
> > > +                             pNicDevice,
> > > +                             &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val = RXBINQCTRL_TIMEN | RXBINQCTRL_IFGEN | RXBINQCTRL_SIZEN;
> > > +
> > > +  Status =  Ax88179MacWrite ( RXBINQCTRL,
> > > +                              0x01,
> > > +                              pNicDevice,
> > > +                              &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val = 0;
> > > +  Status =  Ax88179MacWrite ( RXBINQTIMERL,
> > > +                              0x01,
> > > +                              pNicDevice,
> > > +                              &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val = 0;
> > > +  Status =  Ax88179MacWrite ( RXBINQTIMERH,
> > > +                              0x01,
> > > +                              pNicDevice,
> > > +                              &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val = 12; //AX88179_BULKIN_SIZE_INK - 1;
> > > +  Status =  Ax88179MacWrite ( RXBINQSIZE,
> > > +                              0x01,
> > > +                              pNicDevice,
> > > +                              &val);
> > > +
> > > +  if (EFI_ERROR(Status)) goto err;
> > > +
> > > +  val = 0x0F;
> > > +  Status =  Ax88179MacWrite ( RXBINQIFG,
> > > +                              0x01,
> > > +                              pNicDevice,
> > > +                              &val);
> > > +
> > > +err:
> > > +  return Status;
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179RxControl (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT32 RxFilter
> > > +  )
> > > +{
> > > +  UINT16 MediumStatus;
> > > +  UINT16 RxControl = 0;
> > > +  EFI_STATUS Status = EFI_SUCCESS;
> > > +  //
> > > +  // Enable the receiver if something is to be received
> > > +  //
> > > +  if ( 0 != RxFilter ) {
> > > +    //
> > > +    //  Enable the receiver
> > > +    //
> > > +    Status  = Ax88179MacRead (MEDIUMSTSMOD,
> > > +                              sizeof ( MediumStatus ),
> > > +                              pNicDevice,
> > > +                              &MediumStatus);
> > > +
> > > +    if ( !EFI_ERROR ( Status ) && pNicDevice->CurMediumStatus !=
> > MediumStatus) {
> > > +        MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
> > > +        if ( pNicDevice->bFullDuplex ) {
> > > +          MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC |
> > MEDIUMSTSMOD_FD;
> > > +        } else {
> > > +          MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC
> > | MEDIUMSTSMOD_FD);
> > > +        }
> > > +        if ( pNicDevice->b1000Mbps ) {
> > > +          MediumStatus |= MEDIUMSTSMOD_GM;
> > > +          MediumStatus |= MEDIUMSTSMOD_ENCK;
> > > +          MediumStatus &= ~MEDIUMSTSMOD_PS;
> > > +        } else {
> > > +          MediumStatus &= ~MEDIUMSTSMOD_GM;
> > > +          MediumStatus &= ~MEDIUMSTSMOD_ENCK;
> > > +          if ( pNicDevice->b100Mbps ) {
> > > +            MediumStatus |= MEDIUMSTSMOD_PS;
> > > +          }  else {
> > > +            MediumStatus &= ~MEDIUMSTSMOD_PS;
> > > +          }
> > > +        }
> > > +        Status  = Ax88179MacWrite (MEDIUMSTSMOD,
> > > +                                   sizeof ( MediumStatus ),
> > > +                                   pNicDevice,
> > > +                                   &MediumStatus);
> > > +        if ( !EFI_ERROR ( Status ))
> > > +          pNicDevice->CurMediumStatus = MediumStatus;
> > > +    }
> > > +  }
> > > +
> > > +  RxControl = RXCTL_SO | RXCTL_IPE;
> > > +
> > > +  //
> > > +  //  Enable multicast if requested
> > > +  //
> > > +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
> > > +    RxControl |= RXCTL_AM;
> > > +    //
> > > +    //  Update the multicast hash table
> > > +    //
> > > +    Status  = Ax88179MacWrite (MULCATFLTARRY,
> > > +                               8,
> > > +                               pNicDevice,
> > > +                               &pNicDevice->MulticastHash );
> > > +  }
> > > +
> > > +  //
> > > +  //  Enable all multicast if requested
> > > +  //
> > > +  if ( 0 != ( RxFilter &
> > EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST )) {
> > > +    RxControl |= RXCTL_AMALL;
> > > +  }
> > > +  //
> > > +  //  Enable broadcast if requested
> > > +  //
> > > +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST )) {
> > > +    RxControl |= RXCTL_AB;
> > > +  }
> > > +
> > > +  //
> > > +  //  Enable promiscuous mode if requested
> > > +  //
> > > +  if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS )) {
> > > +    RxControl |= RXCTL_PRO;
> > > +  }
> > > +
> > > +  //
> > > +  //  Update the receiver control
> > > +  //
> > > +  if (pNicDevice->CurRxControl != RxControl) {
> > > +    Status  = Ax88179MacWrite (RXCTL,
> > > +                               0x02,
> > > +                               pNicDevice,
> > > +                               &RxControl);
> > > +    if ( !EFI_ERROR ( Status ))
> > > +      pNicDevice->CurRxControl = RxControl;
> > > +  }
> > > +
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179ReloadSrom  (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status = EFI_UNSUPPORTED;
> > > +  return Status;
> > > +
> > > +}
> > > +
> > > +/**
> > > +  Read an SROM location
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to read data from the
> > > +  SROM.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] Address          SROM address
> > > +  @param [out] pData           Buffer to receive the data
> > > +
> > > +  @retval EFI_SUCCESS          The read was successful
> > > +  @retval other                The read failed
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179SromRead (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT32 Address,
> > > +  OUT UINT16 * pData
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status = EFI_UNSUPPORTED;
> > > +  return Status;
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179EnableSromWrite  (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status = EFI_UNSUPPORTED;
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +EFI_STATUS
> > > +Ax88179DisableSromWrite  (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status = EFI_UNSUPPORTED;
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Write an SROM location
> > > +
> > > +  This routine calls ::Ax88179UsbCommand to write data from the
> > > +  SROM.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] Address          SROM address
> > > +  @param [out] pData           Buffer of data to write
> > > +
> > > +  @retval EFI_SUCCESS          The write was successful
> > > +  @retval other                The write failed
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +Ax88179SromWrite (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN UINT32 Address,
> > > +  IN UINT16 * pData
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +  Status = EFI_UNSUPPORTED;
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +
> > > +/**
> > > +  Send a command to the USB device.
> > > +
> > > +  @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
> > > +  @param [in] pRequest         Pointer to the request structure
> > > +  @param [in, out] pBuffer     Data buffer address
> > > +
> > > +  @retval EFI_SUCCESS          The USB transfer was successful
> > > +  @retval other                The USB transfer failed
> > > +
> > > +**/
> > > +
> > > +EFI_STATUS
> > > +Ax88179UsbCommand (
> > > +  IN NIC_DEVICE * pNicDevice,
> > > +  IN USB_DEVICE_REQUEST * pRequest,
> > > +  IN OUT VOID * pBuffer
> > > +  )
> > > +{
> > > +
> > > +  EFI_USB_DATA_DIRECTION Direction;
> > > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > > +  EFI_STATUS Status = EFI_TIMEOUT;
> > > +  UINT32 CmdStatus = EFI_USB_NOERROR;
> > > +  int i;
> > > +  //
> > > +  // Determine the transfer direction
> > > +  //
> > > +  Direction = EfiUsbNoData;
> > > +  if ( 0 != pRequest->Length ) {
> > > +    Direction = ( 0 != ( pRequest->RequestType & USB_ENDPOINT_DIR_IN ))
> > > +                        ? EfiUsbDataIn : EfiUsbDataOut;
> > > +  }
> > > +
> > > +  //
> > > +  // Issue the command
> > > +  //
> > > +  pUsbIo = pNicDevice->pUsbIo;
> > > +
> > > +  for ( i = 0 ; i < 3 && EFI_TIMEOUT == Status; i++) {
> > > +    Status = pUsbIo->UsbControlTransfer ( pUsbIo,
> > > +                                        pRequest,
> > > +                                        Direction,
> > > +                                        USB_BUS_TIMEOUT,
> > > +                                        pBuffer,
> > > +                                        pRequest->Length,
> > > +                                        &CmdStatus );
> > > +  }
> > > +  //
> > > +  // Determine the operation status
> > > +  //
> > > +  if (EFI_ERROR(Status) || EFI_ERROR(CmdStatus))
> > > +    Status = EFI_DEVICE_ERROR;
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179MacRead (
> > > +  IN  UINT8 Offset,
> > > +  IN  UINT8 Length,
> > > +  IN  NIC_DEVICE * pNicDevice,
> > > +  IN  OUT  VOID * pData
> > > +  )
> > > +{
> > > +
> > > +  EFI_STATUS Status;
> > > +  USB_DEVICE_REQUEST SetupMsg;
> > > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > > +                       | USB_TARGET_DEVICE
> > > +                       | USB_ENDPOINT_DIR_IN;
> > > +
> > > +  SetupMsg.Request = ACCESS_MAC;
> > > +  SetupMsg.Value  = Offset;
> > > +  SetupMsg.Index  = Length;
> > > +  SetupMsg.Length = SetupMsg.Index;
> > > +
> > > +  Status = Ax88179UsbCommand ( pNicDevice,
> > > +                               &SetupMsg,
> > > +                               pData );
> > > +
> > > +  return Status;
> > > +
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179MacWrite (
> > > +  IN  UINT8 Offset,
> > > +  IN  UINT8 Length,
> > > +  IN  NIC_DEVICE * pNicDevice,
> > > +  IN  OUT  VOID * pData
> > > +  )
> > > +{
> > > +
> > > +  EFI_STATUS Status;
> > > +  USB_DEVICE_REQUEST SetupMsg;
> > > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > > +                       | USB_TARGET_DEVICE;
> > > +
> > > +  SetupMsg.Request = ACCESS_MAC;
> > > +  SetupMsg.Value  = Offset;
> > > +  SetupMsg.Index  = Length;
> > > +  SetupMsg.Length = SetupMsg.Index;
> > > +
> > > +  Status = Ax88179UsbCommand ( pNicDevice,
> > > +                               &SetupMsg,
> > > +                               pData );
> > > +
> > > +  return Status;
> > > +
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179SetIInInterval (
> > > +  IN  NIC_DEVICE * pNicDevice,
> > > +  IN  UINT8 Interval
> > > +  )
> > > +{
> > > +
> > > +  EFI_STATUS Status;
> > > +  USB_DEVICE_REQUEST SetupMsg;
> > > +  SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
> > > +                       | USB_TARGET_DEVICE;
> > > +
> > > +  SetupMsg.Request = 0x91;
> > > +  SetupMsg.Value  = Interval;
> > > +  SetupMsg.Index  = 0;
> > > +  SetupMsg.Length = 0;
> > > +
> > > +  Status = Ax88179UsbCommand ( pNicDevice,
> > > +                               &SetupMsg,
> > > +                               NULL );
> > > +
> > > +  return Status;
> > > +
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179SetMedium (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  UINT16 MediumStatus;
> > > +  EFI_STATUS Status;
> > > +
> > > +  MediumStatus = MEDIUMSTSMOD_RE | MEDIUMSTSMOD_ONE;
> > > +  if ( pNicDevice->bFullDuplex ) {
> > > +    MediumStatus |= MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC |
> > MEDIUMSTSMOD_FD;
> > > +  } else {
> > > +    MediumStatus &= ~(MEDIUMSTSMOD_TFC | MEDIUMSTSMOD_RFC |
> > MEDIUMSTSMOD_FD);
> > > +  }
> > > +  if ( pNicDevice->b1000Mbps ) {
> > > +    MediumStatus |= MEDIUMSTSMOD_GM;
> > > +    MediumStatus &= ~MEDIUMSTSMOD_PS;
> > > +  } else {
> > > +    MediumStatus &= ~MEDIUMSTSMOD_GM;
> > > +    if ( pNicDevice->b100Mbps ) {
> > > +      MediumStatus |= MEDIUMSTSMOD_PS;
> > > +    } else {
> > > +      MediumStatus &= ~MEDIUMSTSMOD_PS;
> > > +    }
> > > +  }
> > > +  Status  = Ax88179MacWrite (MEDIUMSTSMOD,
> > > +                             sizeof ( MediumStatus ),
> > > +                             pNicDevice,
> > > +                             &MediumStatus);
> > > +  if ( !EFI_ERROR ( Status ))
> > > +  pNicDevice->CurMediumStatus = MediumStatus;
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +BOOLEAN
> > > +Ax88179GetLinkStatus (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +)
> > > +{
> > > +  UINT32 CmdStatus;
> > > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > > +  UINT64    IntData = 0;
> > > +  UINTN     IntDataLeng = 8;
> > > +  EFI_STATUS Status;
> > > +
> > > +  //
> > > +  // Issue the command
> > > +  //
> > > +  pUsbIo = pNicDevice->pUsbIo;
> > > +  Status = pUsbIo->UsbSyncInterruptTransfer( pUsbIo,
> > > +                                        USB_ENDPOINT_DIR_IN | INTERRUPT_ENDPOINT,
> > > +                                        &IntData,
> > > +                                        &IntDataLeng,
> > > +                                        USB_BUS_TIMEOUT,
> > > +                                        &CmdStatus );
> > > +
> > > +  if ( EFI_ERROR(Status) || EFI_ERROR(CmdStatus) || 0 == IntDataLeng)
> > > +    return FALSE;
> > > +
> > > +  return (IntData & 0x10000)? TRUE : FALSE;
> > > +
> > > +}
> > > +
> > > +EFI_STATUS
> > > +Ax88179BulkIn(
> > > +  IN NIC_DEVICE * pNicDevice
> > > +)
> > > +{
> > > +  int i;
> > > +  UINT16  val;
> > > +  UINTN LengthInBytes = 0;
> > > +  UINTN TMP_LENG = AX88179_MAX_BULKIN_SIZE;
> > > +  UINTN CURBufSize = AX88179_MAX_BULKIN_SIZE;
> > > +  UINTN PREBufSize = 0;
> > > +  EFI_STATUS Status = EFI_NOT_READY;
> > > +  EFI_USB_IO_PROTOCOL *pUsbIo;
> > > +  UINT32 TransferStatus;
> > > +
> > > +  pNicDevice->SkipRXCnt = 0;
> > > +
> > > +  pUsbIo = pNicDevice->pUsbIo;
> > > +  for ( i = 0 ; i < (AX88179_MAX_BULKIN_SIZE / 512) && pUsbIo != NULL;
> > i++) {
> > > +    VOID* tmpAddr = 0;
> > > +
> > > +    if (pNicDevice->bSetZeroLen) {
> > > +      val =  PHYPWRRSTCTL_IPRL | PHYPWRRSTCTL_BZ;
> > > +      Status = Ax88179MacWrite ( PHYPWRRSTCTL,
> > > +                                 sizeof (val),
> > > +                                 pNicDevice,
> > > +                                 &val);
> > > +      if (EFI_ERROR(Status)) {
> > > +        LengthInBytes = 0;
> > > +        Status = EFI_NOT_READY;
> > > +        goto no_pkt;
> > > +      }
> > > +      pNicDevice->bSetZeroLen = FALSE;
> > > +    }
> > > +    tmpAddr = (VOID*) &pNicDevice->pBulkInbuf[LengthInBytes];
> > > +
> > > +    Status =  EFI_NOT_READY;
> > > +    Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
> > > +                          USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
> > > +                          tmpAddr,
> > > +                          &TMP_LENG,
> > > +                          BULKIN_TIMEOUT,
> > > +                          &TransferStatus );
> > > +
> > > +    if (( !EFI_ERROR ( Status )) && ( !EFI_ERROR ( TransferStatus )) &&
> > TMP_LENG != 0) {
> > > +      LengthInBytes += TMP_LENG;
> > > +      if ((TMP_LENG % pNicDevice->usbMaxPktSize) != 0) {
> > > +        goto done;
> > > +      }
> > > +      CURBufSize = CURBufSize - TMP_LENG;
> > > +      TMP_LENG = CURBufSize;
> > > +      pNicDevice->bSetZeroLen = TRUE;
> > > +    } else if (( !EFI_ERROR ( Status )) &&
> > > +               ( !EFI_ERROR ( TransferStatus )) &&
> > > +               ( TMP_LENG == 0) &&
> > > +               LengthInBytes) {
> > > +      if (PREBufSize == CURBufSize) {
> > > +        goto done;
> > > +      }
> > > +      TMP_LENG = CURBufSize;
> > > +      PREBufSize = CURBufSize;
> > > +      pNicDevice->bSetZeroLen = TRUE;
> > > +    } else if (( !EFI_ERROR ( Status )) &&
> > > +               ( !EFI_ERROR ( TransferStatus )) &&
> > > +               ( TMP_LENG == 0)) {
> > > +      pNicDevice->bSetZeroLen = TRUE;
> > > +      LengthInBytes = 0;
> > > +      Status = EFI_NOT_READY;
> > > +      goto done;
> > > +    } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT ==
> > TransferStatus) {
> > > +      pNicDevice->bSetZeroLen = TRUE;
> > > +      LengthInBytes = 0;
> > > +      Status = EFI_NOT_READY;
> > > +      goto done;
> > > +    } else {
> > > +      pNicDevice->bSetZeroLen = TRUE;
> > > +      LengthInBytes = 0;
> > > +      Status = EFI_NOT_READY;
> > > +      goto done;
> > > +    }
> > > +  }
> > > +
> > > +done:
> > > +  if (LengthInBytes != 0) {
> > > +    UINT16 tmplen = 0;
> > > +    UINT16 tmpPktCnt = 0;
> > > +
> > > +    tmpPktCnt = *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes -
> > 4));
> > > +    tmplen =  *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2));
> > > +
> > > +    if (((UINTN)(((tmpPktCnt * 4 + 4 + 7) & 0xfff8) + tmplen)) ==
> > LengthInBytes) {
> > > +      pNicDevice->PktCnt = tmpPktCnt;
> > > +      pNicDevice->pCurPktHdrOff = pNicDevice->pBulkInbuf + tmplen;
> > > +      pNicDevice->pCurPktOff = pNicDevice->pBulkInbuf;
> > > +      *((UINT16 *) (pNicDevice->pBulkInbuf + LengthInBytes - 4)) = 0;
> > > +      *((UINT16*) (pNicDevice->pBulkInbuf + LengthInBytes - 2)) = 0;
> > > +      Status = EFI_SUCCESS;
> > > +    } else {
> > > +      Status = EFI_NOT_READY;
> > > +    }
> > > +  } else {
> > > +    Status = EFI_NOT_READY;
> > > +  }
> > > +no_pkt:
> > > +   return Status;
> > > +}
> > > diff --git
> > a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNa
> > me.c
> > >
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNa
> > me.c
> > > new file mode 100644
> > > index 000000000000..bb7ea146be02
> > > --- /dev/null
> > > +++
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/ComponentNa
> > me.c
> > > @@ -0,0 +1,290 @@
> > > +/** @file
> > > +  UEFI Component Name(2) protocol implementation.
> > > +
> > > +  Copyright (c) 2011, Intel Corporation. All rights reserved.
> > > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +
> > > +**/
> > > +
> > > +#include "Ax88179.h"
> > > +
> > > +/**
> > > +  EFI Component Name Protocol declaration
> > > +**/
> > > +GLOBAL_REMOVE_IF_UNREFERENCED
> > EFI_COMPONENT_NAME_PROTOCOL  gComponentName = {
> > > +  GetDriverName,
> > > +  GetControllerName,
> > > +  "eng"
> > > +};
> > > +
> > > +/**
> > > +  EFI Component Name 2 Protocol declaration
> > > +**/
> > > +GLOBAL_REMOVE_IF_UNREFERENCED
> > EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
> > > +  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) GetDriverName,
> > > +  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)
> > GetControllerName,
> > > +  "en"
> > > +};
> > > +
> > > +
> > > +/**
> > > +  Driver name table declaration
> > > +**/
> > > +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> > > +mDriverNameTable[] = {
> > > +  {"eng;en", L"ASIX AX88179 Ethernet Driver 2.9.0"},
> > > +  {NULL,  NULL}
> > > +};
> > > +
> > > +/**
> > > +  Controller name table declaration
> > > +**/
> > > +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> > > +mControllerNameTable[] = {
> > > +  {"eng;en", L"AX88179 USB3.0 Gigabit Ethernet Controller"},
> > > +  {NULL,  NULL}
> > > +};
> > > +
> > > +/**
> > > +  Retrieves a Unicode string that is the user readable name of the driver.
> > > +
> > > +  This function retrieves the user readable name of a driver in the form of
> > a
> > > +  Unicode string. If the driver specified by This has a user readable name in
> > > +  the language specified by Language, then a pointer to the driver name is
> > > +  returned in DriverName, and EFI_SUCCESS is returned. If the driver
> > specified
> > > +  by This does not support the language specified by Language,
> > > +  then EFI_UNSUPPORTED is returned.
> > > +
> > > +  @param [in] pThis             A pointer to the
> > EFI_COMPONENT_NAME2_PROTOCOL or
> > > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > > +                                array indicating the language. This is the
> > > +                                language of the driver name that the caller is
> > > +                                requesting, and it must match one of the
> > > +                                languages specified in SupportedLanguages. The
> > > +                                number of languages supported by a driver is up
> > > +                                to the driver writer. Language is specified
> > > +                                in RFC 3066 or ISO 639-2 language code format.
> > > +  @param [out] ppDriverName     A pointer to the Unicode string to return.
> > > +                                This Unicode string is the name of the
> > > +                                driver specified by This in the language
> > > +                                specified by Language.
> > > +
> > > +  @retval EFI_SUCCESS           The Unicode string for the Driver specified by
> > > +                                This and the language specified by Language was
> > > +                                returned in DriverName.
> > > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > > +  @retval EFI_INVALID_PARAMETER DriverName is NULL.
> > > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> > support
> > > +                                the language specified by Language.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +GetDriverName (
> > > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > > +  IN  CHAR8 * pLanguage,
> > > +  OUT CHAR16 ** ppDriverName
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +
> > > +
> > > +  Status = LookupUnicodeString2 (
> > > +             pLanguage,
> > > +             pThis->SupportedLanguages,
> > > +             mDriverNameTable,
> > > +             ppDriverName,
> > > +             (BOOLEAN)(pThis == &gComponentName)
> > > +             );
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Retrieves a Unicode string that is the user readable name of the
> > controller
> > > +  that is being managed by a driver.
> > > +
> > > +  This function retrieves the user readable name of the controller specified
> > by
> > > +  ControllerHandle and ChildHandle in the form of a Unicode string. If the
> > > +  driver specified by This has a user readable name in the language
> > specified by
> > > +  Language, then a pointer to the controller name is returned in
> > ControllerName,
> > > +  and EFI_SUCCESS is returned.  If the driver specified by This is not
> > currently
> > > +  managing the controller specified by ControllerHandle and ChildHandle,
> > > +  then EFI_UNSUPPORTED is returned.  If the driver specified by This does
> > not
> > > +  support the language specified by Language, then EFI_UNSUPPORTED is
> > returned.
> > > +
> > > +  @param [in] pThis             A pointer to the
> > EFI_COMPONENT_NAME2_PROTOCOL or
> > > +                                EFI_COMPONENT_NAME_PROTOCOL instance.
> > > +  @param [in] ControllerHandle  The handle of a controller that the driver
> > > +                                specified by This is managing.  This handle
> > > +                                specifies the controller whose name is to be
> > > +                                returned.
> > > +  @param [in] ChildHandle       The handle of the child controller to
> > retrieve
> > > +                                the name of.  This is an optional parameter that
> > > +                                may be NULL.  It will be NULL for device
> > > +                                drivers.  It will also be NULL for a bus drivers
> > > +                                that wish to retrieve the name of the bus
> > > +                                controller.  It will not be NULL for a bus
> > > +                                driver that wishes to retrieve the name of a
> > > +                                child controller.
> > > +  @param [in] pLanguage         A pointer to a Null-terminated ASCII string
> > > +                                array indicating the language.  This is the
> > > +                                language of the driver name that the caller is
> > > +                                requesting, and it must match one of the
> > > +                                languages specified in SupportedLanguages. The
> > > +                                number of languages supported by a driver is up
> > > +                                to the driver writer. Language is specified in
> > > +                                RFC 3066 or ISO 639-2 language code format.
> > > +  @param [out] ppControllerName A pointer to the Unicode string to
> > return.
> > > +                                This Unicode string is the name of the
> > > +                                controller specified by ControllerHandle and
> > > +                                ChildHandle in the language specified by
> > > +                                Language from the point of view of the driver
> > > +                                specified by This.
> > > +
> > > +  @retval EFI_SUCCESS           The Unicode string for the user readable
> > name in
> > > +                                the language specified by Language for the
> > > +                                driver specified by This was returned in
> > > +                                DriverName.
> > > +  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
> > EFI_HANDLE.
> > > +  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not
> > a valid
> > > +                                EFI_HANDLE.
> > > +  @retval EFI_INVALID_PARAMETER Language is NULL.
> > > +  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> > > +  @retval EFI_UNSUPPORTED       The driver specified by This is not
> > currently
> > > +                                managing the controller specified by
> > > +                                ControllerHandle and ChildHandle.
> > > +  @retval EFI_UNSUPPORTED       The driver specified by This does not
> > support
> > > +                                the language specified by Language.
> > > +
> > > +**/
> > > +
> > > +
> > > +
> > > +#if PASS_SCT
> > > +EFI_STATUS
> > > +EFIAPI
> > > +GetControllerName (
> > > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > > +  IN  EFI_HANDLE ControllerHandle,
> > > +  IN OPTIONAL EFI_HANDLE ChildHandle,
> > > +  IN  CHAR8 * pLanguage,
> > > +  OUT CHAR16 ** ppControllerName
> > > +  )
> > > +{
> > > +
> > > +  EFI_STATUS                  Status;
> > > +  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
> > > +
> > > +  //
> > > +  // This is a device driver, so ChildHandle must be NULL.
> > > +  //
> > > +  if (ChildHandle != NULL) {
> > > +    return EFI_UNSUPPORTED;
> > > +  }
> > > +
> > > +  //
> > > +  // Check Controller's handle
> > > +  //
> > > +  Status = gBS->OpenProtocol (
> > > +                  ControllerHandle,
> > > +                  &gEfiUsbIoProtocolGuid,
> > > +                  (VOID **) &UsbIoProtocol,
> > > +                  gDriverBinding.DriverBindingHandle,
> > > +                  ControllerHandle,
> > > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > > +                  );
> > > +  if (!EFI_ERROR (Status)) {
> > > +    gBS->CloseProtocol (
> > > +           ControllerHandle,
> > > +           &gEfiUsbIoProtocolGuid,
> > > +           gDriverBinding.DriverBindingHandle,
> > > +           ControllerHandle
> > > +           );
> > > +    return EFI_UNSUPPORTED;
> > > +  }
> > > +
> > > +  if (Status != EFI_ALREADY_STARTED) {
> > > +    return EFI_UNSUPPORTED;
> > > +  }
> > > +
> > > +  Status =  LookupUnicodeString2 (
> > > +           pLanguage,
> > > +            pThis->SupportedLanguages,
> > > +           mControllerNameTable,
> > > +           ppControllerName,
> > > +           (BOOLEAN)(pThis == &gComponentName)
> > > +           );
> > > +
> > > +  return  Status;
> > > +}
> > > +#else
> > > +
> > > +EFI_STATUS
> > > +EFIAPI
> > > +GetControllerName (
> > > +  IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
> > > +  IN  EFI_HANDLE ControllerHandle,
> > > +  IN OPTIONAL EFI_HANDLE ChildHandle,
> > > +  IN  CHAR8 * pLanguage,
> > > +  OUT CHAR16 ** ppControllerName
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +  EFI_USB_IO_PROTOCOL         *UsbIoProtocol;
> > > +  EFI_USB_DEVICE_DESCRIPTOR Device;
> > > +
> > > +  //
> > > +  //  Connect to the USB stack
> > > +  //
> > > +  Status = gBS->OpenProtocol (
> > > +                  ControllerHandle,
> > > +                  &gEfiUsbIoProtocolGuid,
> > > +                  (VOID **) &UsbIoProtocol,
> > > +                  gDriverBinding.DriverBindingHandle,
> > > +                  ControllerHandle,
> > > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > > +                  );
> > > +
> > > +
> > > +  if (!EFI_ERROR ( Status )) {
> > > +      Status = UsbIoProtocol->UsbGetDeviceDescriptor ( UsbIoProtocol,
> > &Device );
> > > +      if (EFI_ERROR(Status)) {
> > > +        Status = EFI_UNSUPPORTED;
> > > +      } else {
> > > +          //
> > > +          //  Validate the adapter
> > > +          //
> > > +          if (( VENDOR_ID == Device.IdVendor )
> > > +            && ( PRODUCT_ID == Device.IdProduct )) {
> > > +            *ppControllerName = L"AX88179 USB3.0 Gigabit Ethernet
> > Controller";
> > > +            Status = EFI_SUCCESS;
> > > +          } else if (( VENDOR_ID == Device.IdVendor )
> > > +            && ( PRODUCT_ID_178A == Device.IdProduct )) {
> > > +            *ppControllerName = L"AX88178A USB2.0 Gigabit Ethernet
> > Controller";
> > > +            Status = EFI_SUCCESS;
> > > +          } else {
> > > +            Status = EFI_UNSUPPORTED;
> > > +          }
> > > +
> > > +      }
> > > +
> > > +      gBS->CloseProtocol (
> > > +               ControllerHandle,
> > > +               &gEfiUsbIoProtocolGuid,
> > > +               gDriverBinding.DriverBindingHandle,
> > > +               ControllerHandle
> > > +               );
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  if (Status != EFI_SUCCESS) {
> > > +    *ppControllerName = L"AX88179_178A Gigabit Ethernet Controller";
> > > +        Status = EFI_SUCCESS;
> > > +  }
> > > +  return Status;
> > > +}
> > > +
> > > +#endif
> > > diff --git
> > a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> > >
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> > > new file mode 100644
> > > index 000000000000..826a539e3f34
> > > --- /dev/null
> > > +++
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/DriverBinding.c
> > > @@ -0,0 +1,620 @@
> > > +/** @file
> > > +  Implement the driver binding protocol for Asix AX88179 Ethernet driver.
> > > +
> > > +  Copyright (c) 2011, Intel Corporation
> > > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +
> > > +**/
> > > +
> > > +#include "Ax88179.h"
> > > +
> > > +/**
> > > +  Verify the controller type
> > > +
> > > +  @param [in] pThis                Protocol instance pointer.
> > > +  @param [in] Controller           Handle of device to test.
> > > +  @param [in] pRemainingDevicePath Not used.
> > > +
> > > +  @retval EFI_SUCCESS          This driver supports this device.
> > > +  @retval other                This driver does not support this device.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +DriverSupported (
> > > +  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
> > > +  IN EFI_HANDLE Controller,
> > > +  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
> > > +  )
> > > +{
> > > +  EFI_USB_DEVICE_DESCRIPTOR Device;
> > > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > > +  EFI_STATUS Status;
> > > +
> > > +  //
> > > +  //  Connect to the USB stack
> > > +  //
> > > +  Status = gBS->OpenProtocol (
> > > +                  Controller,
> > > +                  &gEfiUsbIoProtocolGuid,
> > > +                  (VOID **) &pUsbIo,
> > > +                  pThis->DriverBindingHandle,
> > > +                  Controller,
> > > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > > +                  );
> > > +  if (!EFI_ERROR ( Status )) {
> > > +
> > > +    //
> > > +    //  Get the interface descriptor to check the USB class and find a
> > transport
> > > +    //  protocol handler.
> > > +    //
> > > +    Status = pUsbIo->UsbGetDeviceDescriptor ( pUsbIo, &Device );
> > > +    if (EFI_ERROR(Status)) {
> > > +      Status = EFI_UNSUPPORTED;
> > > +    } else {
> > > +      //
> > > +      //  Validate the adapter
> > > +      //
> > > +      if (( VENDOR_ID == Device.IdVendor ) &&
> > > +          ( PRODUCT_ID == Device.IdProduct )) {
> > > +        Status = EFI_SUCCESS;
> > > +      } else if (( VENDOR_ID == Device.IdVendor ) &&
> > > +                 ( PRODUCT_ID_178A == Device.IdProduct )) {
> > > +        Status = EFI_SUCCESS;
> > > +      } else {
> > > +        Status = EFI_UNSUPPORTED;
> > > +      }
> > > +    }
> > > +    gBS->CloseProtocol (
> > > +           Controller,
> > > +           &gEfiUsbIoProtocolGuid,
> > > +           pThis->DriverBindingHandle,
> > > +           Controller
> > > +           );
> > > +  }
> > > +
> > > +  //
> > > +  //  Return the device supported status
> > > +  //
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Start this driver on Controller by opening UsbIo and DevicePath
> > protocols.
> > > +  Initialize PXE structures, create a copy of the Controller Device Path with
> > the
> > > +  NIC's MAC address appended to it, install the NetworkInterfaceIdentifier
> > protocol
> > > +  on the newly created Device Path.
> > > +
> > > +  @param [in] pThis                Protocol instance pointer.
> > > +  @param [in] Controller           Handle of device to work with.
> > > +  @param [in] pRemainingDevicePath Not used, always produce all
> > possible children.
> > > +
> > > +  @retval EFI_SUCCESS          This driver is added to Controller.
> > > +  @retval other                This driver does not support this device.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +DriverStart (
> > > +  IN EFI_DRIVER_BINDING_PROTOCOL * pThis,
> > > +  IN EFI_HANDLE Controller,
> > > +  IN EFI_DEVICE_PATH_PROTOCOL * pRemainingDevicePath
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +  NIC_DEVICE *pNicDevice;
> > > +  UINTN LengthInBytes;
> > > +  EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath = NULL;
> > > +  MAC_ADDR_DEVICE_PATH MacDeviceNode;
> > > +
> > > +  //
> > > +  //  Allocate the device structure
> > > +  //
> > > +  LengthInBytes = sizeof ( *pNicDevice );
> > > +  Status = gBS->AllocatePool (
> > > +                  EfiRuntimeServicesData,
> > > +                  LengthInBytes,
> > > +                  (VOID **) &pNicDevice
> > > +                  );
> > > +
> > > +  if (EFI_ERROR (Status)) {
> > > +    goto ERR;
> > > +  }
> > > +
> > > +  //
> > > +  //  Set the structure signature
> > > +  //
> > > +  ZeroMem ( pNicDevice, LengthInBytes );
> > > +  pNicDevice->Signature = DEV_SIGNATURE;
> > > +
> > > +  Status = gBS->OpenProtocol (
> > > +                    Controller,
> > > +                    &gEfiUsbIoProtocolGuid,
> > > +                    (VOID **) &pNicDevice->pUsbIo,
> > > +                    pThis->DriverBindingHandle,
> > > +                    Controller,
> > > +                    EFI_OPEN_PROTOCOL_BY_DRIVER
> > > +                    );
> > > +
> > > +  if (EFI_ERROR (Status)) {
> > > +    goto ERR;
> > > +  }
> > > +
> > > +  //
> > > +  //  Initialize the simple network protocol
> > > +  //
> > > +  Status = SN_Setup ( pNicDevice );
> > > +
> > > +  if (EFI_ERROR(Status)){
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiUsbIoProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              Controller
> > > +              );
> > > +    goto ERR;
> > > +  }
> > > +  //
> > > +  // Set Device Path
> > > +  //
> > > +  Status = gBS->OpenProtocol (
> > > +                  Controller,
> > > +                  &gEfiDevicePathProtocolGuid,
> > > +                  (VOID **) &ParentDevicePath,
> > > +                  pThis->DriverBindingHandle,
> > > +                  Controller,
> > > +                  EFI_OPEN_PROTOCOL_BY_DRIVER
> > > +                  );
> > > +  if (EFI_ERROR(Status)) {
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiUsbIoProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              Controller
> > > +              );
> > > +    goto ERR;
> > > +  }
> > > +
> > > +  ZeroMem (&MacDeviceNode, sizeof (MAC_ADDR_DEVICE_PATH));
> > > +  MacDeviceNode.Header.Type = MESSAGING_DEVICE_PATH;
> > > +  MacDeviceNode.Header.SubType = MSG_MAC_ADDR_DP;
> > > +
> > > +  SetDevicePathNodeLength (&MacDeviceNode.Header, sizeof
> > (MAC_ADDR_DEVICE_PATH));
> > > +
> > > +  CopyMem (&MacDeviceNode.MacAddress,
> > > +           &pNicDevice->SimpleNetworkData.CurrentAddress,
> > > +           PXE_HWADDR_LEN_ETHER);
> > > +
> > > +  MacDeviceNode.IfType = pNicDevice->SimpleNetworkData.IfType;
> > > +
> > > +  pNicDevice->MyDevPath = AppendDevicePathNode (
> > > +                                          ParentDevicePath,
> > > +                                          (EFI_DEVICE_PATH_PROTOCOL *)
> > &MacDeviceNode
> > > +                                          );
> > > +  pNicDevice->Controller = NULL;
> > > +
> > > +  //
> > > +  //  Install both the simple network and device path protocols.
> > > +  //
> > > +  Status = gBS->InstallMultipleProtocolInterfaces (
> > > +                          &pNicDevice->Controller,
> > > +                          &gEfiCallerIdGuid,
> > > +                          pNicDevice,
> > > +                          &gEfiSimpleNetworkProtocolGuid,
> > > +                          &pNicDevice->SimpleNetwork,
> > > +                          &gEfiDevicePathProtocolGuid,
> > > +                          pNicDevice->MyDevPath,
> > > +                          NULL
> > > +                          );
> > > +
> > > +  if (EFI_ERROR(Status)){
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiDevicePathProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              Controller);
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiUsbIoProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              Controller
> > > +              );
> > > +    goto ERR;
> > > +  }
> > > +
> > > +  //
> > > +  // Open For Child Device
> > > +  //
> > > +  Status = gBS->OpenProtocol (
> > > +                  Controller,
> > > +                  &gEfiUsbIoProtocolGuid,
> > > +                  (VOID **) &pNicDevice->pUsbIo,
> > > +                  pThis->DriverBindingHandle,
> > > +                  pNicDevice->Controller,
> > > +                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> > > +                  );
> > > +
> > > +  if (EFI_ERROR(Status)){
> > > +    gBS->UninstallMultipleProtocolInterfaces (
> > > +                          &pNicDevice->Controller,
> > > +                          &gEfiCallerIdGuid,
> > > +                          pNicDevice,
> > > +                          &gEfiSimpleNetworkProtocolGuid,
> > > +                          &pNicDevice->SimpleNetwork,
> > > +                          &gEfiDevicePathProtocolGuid,
> > > +                          pNicDevice->MyDevPath,
> > > +                          NULL
> > > +                          );
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiDevicePathProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              Controller);
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiUsbIoProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              Controller
> > > +              );
> > > +    goto ERR;
> > > +  }
> > > +
> > > +  return Status;
> > > +
> > > +
> > > +ERR:
> > > +
> > > +  if ( NULL != pNicDevice->pBulkInbuf)
> > > +    gBS->FreePool (pNicDevice->pBulkInbuf);
> > > +  if ( NULL != pNicDevice->pTxTest)
> > > +    gBS->FreePool (pNicDevice->pTxTest);
> > > +  if ( NULL != pNicDevice->MyDevPath)
> > > +    gBS->FreePool (pNicDevice->MyDevPath);
> > > +  if (NULL != pNicDevice)
> > > +    gBS->FreePool ( pNicDevice );
> > > +  return Status;
> > > +
> > > +}
> > > +
> > > +/**
> > > +  Stop this driver on Controller by removing NetworkInterfaceIdentifier
> > protocol and
> > > +  closing the DevicePath and PciIo protocols on Controller.
> > > +
> > > +  @param [in] pThis                Protocol instance pointer.
> > > +  @param [in] Controller           Handle of device to stop driver on.
> > > +  @param [in] NumberOfChildren     How many children need to be
> > stopped.
> > > +  @param [in] pChildHandleBuffer   Not used.
> > > +
> > > +  @retval EFI_SUCCESS          This driver is removed Controller.
> > > +  @retval EFI_DEVICE_ERROR     The device could not be stopped due to a
> > device error.
> > > +  @retval other                This driver was not removed from this device.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +DriverStop (
> > > +  IN  EFI_DRIVER_BINDING_PROTOCOL * pThis,
> > > +  IN  EFI_HANDLE Controller,
> > > +  IN  UINTN NumberOfChildren,
> > > +  IN  EFI_HANDLE * ChildHandleBuffer
> > > +  )
> > > +{
> > > +  BOOLEAN AllChildrenStopped;
> > > +  EFI_SIMPLE_NETWORK_PROTOCOL *SimpleNetwork;
> > > +  EFI_STATUS Status = EFI_SUCCESS;
> > > +  NIC_DEVICE *pNicDevice;
> > > +  UINTN Index;
> > > +
> > > +  //
> > > +  // Complete all outstanding transactions to Controller.
> > > +  // Don't allow any new transaction to Controller to be started.
> > > +  //
> > > +  if (NumberOfChildren == 0) {
> > > +    Status = gBS->OpenProtocol (
> > > +                      Controller,
> > > +                      &gEfiSimpleNetworkProtocolGuid,
> > > +                      (VOID **) &SimpleNetwork,
> > > +                      pThis->DriverBindingHandle,
> > > +                      Controller,
> > > +                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
> > > +                      );
> > > +
> > > +    if (EFI_ERROR(Status)) {
> > > +      //
> > > +      // This is a 2nd type handle(multi-lun root), it needs to close
> > devicepath
> > > +      // and usbio protocol.
> > > +      //
> > > +      gBS->CloseProtocol (
> > > +                Controller,
> > > +                &gEfiDevicePathProtocolGuid,
> > > +                pThis->DriverBindingHandle,
> > > +                Controller
> > > +                );
> > > +      gBS->CloseProtocol (
> > > +                Controller,
> > > +                &gEfiUsbIoProtocolGuid,
> > > +                pThis->DriverBindingHandle,
> > > +                Controller
> > > +                );
> > > +      return EFI_SUCCESS;
> > > +    }
> > > +
> > > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
> > > +
> > > +    Status = gBS->UninstallMultipleProtocolInterfaces (
> > > +                          Controller,
> > > +                          &gEfiCallerIdGuid,
> > > +                          pNicDevice,
> > > +                          &gEfiSimpleNetworkProtocolGuid,
> > > +                          &pNicDevice->SimpleNetwork,
> > > +                          &gEfiDevicePathProtocolGuid,
> > > +                          pNicDevice->MyDevPath,
> > > +                          NULL
> > > +                          );
> > > +
> > > +    if (EFI_ERROR (Status)) {
> > > +      return Status;
> > > +    }
> > > +    //
> > > +    // Close the bus driver
> > > +    //
> > > +    Status = gBS->CloseProtocol (
> > > +                        Controller,
> > > +                        &gEfiDevicePathProtocolGuid,
> > > +                        pThis->DriverBindingHandle,
> > > +                        Controller
> > > +                        );
> > > +
> > > +    Status = gBS->CloseProtocol (
> > > +                        Controller,
> > > +                        &gEfiUsbIoProtocolGuid,
> > > +                        pThis->DriverBindingHandle,
> > > +                        Controller
> > > +                        );
> > > +    return EFI_SUCCESS;
> > > +  }
> > > +
> > > +  AllChildrenStopped = TRUE;
> > > +
> > > +  for (Index = 0; Index < NumberOfChildren; Index++) {
> > > +    Status = gBS->OpenProtocol (
> > > +                      ChildHandleBuffer[Index],
> > > +                      &gEfiSimpleNetworkProtocolGuid,
> > > +                      (VOID **) &SimpleNetwork,
> > > +                      pThis->DriverBindingHandle,
> > > +                      Controller,
> > > +                      EFI_OPEN_PROTOCOL_GET_PROTOCOL
> > > +                      );
> > > +
> > > +    if (EFI_ERROR (Status)) {
> > > +      AllChildrenStopped = FALSE;
> > > +      continue;
> > > +    }
> > > +
> > > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( SimpleNetwork );
> > > +
> > > +    gBS->CloseProtocol (
> > > +              Controller,
> > > +              &gEfiUsbIoProtocolGuid,
> > > +              pThis->DriverBindingHandle,
> > > +              ChildHandleBuffer[Index]
> > > +              );
> > > +
> > > +    Status = gBS->UninstallMultipleProtocolInterfaces (
> > > +                          ChildHandleBuffer[Index],
> > > +                          &gEfiCallerIdGuid,
> > > +                          pNicDevice,
> > > +                          &gEfiSimpleNetworkProtocolGuid,
> > > +                          &pNicDevice->SimpleNetwork,
> > > +                          &gEfiDevicePathProtocolGuid,
> > > +                          pNicDevice->MyDevPath,
> > > +                          NULL
> > > +                          );
> > > +
> > > +    if (EFI_ERROR (Status)) {
> > > +      Status = gBS->OpenProtocol (
> > > +                        Controller,
> > > +                        &gEfiUsbIoProtocolGuid,
> > > +                        (VOID **) &pNicDevice->pUsbIo,
> > > +                        pThis->DriverBindingHandle,
> > > +                        ChildHandleBuffer[Index],
> > > +                        EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> > > +                        );
> > > +    } else {
> > > +      if ( NULL != pNicDevice->pBulkInbuf)
> > > +        gBS->FreePool (pNicDevice->pBulkInbuf);
> > > +      if ( NULL != pNicDevice->pTxTest)
> > > +        gBS->FreePool (pNicDevice->pTxTest);
> > > +      if ( NULL != pNicDevice->MyDevPath)
> > > +        gBS->FreePool (pNicDevice->MyDevPath);
> > > +      if ( NULL != pNicDevice)
> > > +        gBS->FreePool (pNicDevice);
> > > +    }
> > > +  }
> > > +
> > > +  if (!AllChildrenStopped) {
> > > +    return EFI_DEVICE_ERROR;
> > > +  }
> > > +
> > > +  return EFI_SUCCESS;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Driver binding protocol declaration
> > > +**/
> > > +EFI_DRIVER_BINDING_PROTOCOL  gDriverBinding = {
> > > +  DriverSupported,
> > > +  DriverStart,
> > > +  DriverStop,
> > > +  0xa,
> > > +  NULL,
> > > +  NULL
> > > +};
> > > +
> > > +
> > > +/**
> > > +  Ax88179 driver unload routine.
> > > +
> > > +  @param [in] ImageHandle       Handle for the image.
> > > +
> > > +  @retval EFI_SUCCESS           Image may be unloaded
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +DriverUnload (
> > > +  IN EFI_HANDLE ImageHandle
> > > +  )
> > > +{
> > > +  UINTN BufferSize;
> > > +  UINTN Index;
> > > +  UINTN Max;
> > > +  EFI_HANDLE * pHandle;
> > > +  EFI_STATUS Status;
> > > +
> > > +  //
> > > +  //  Determine which devices are using this driver
> > > +  //
> > > +  BufferSize = 0;
> > > +  pHandle = NULL;
> > > +  Status = gBS->LocateHandle (
> > > +                  ByProtocol,
> > > +                  &gEfiCallerIdGuid,
> > > +                  NULL,
> > > +                  &BufferSize,
> > > +                  NULL );
> > > +  if ( EFI_BUFFER_TOO_SMALL == Status ) {
> > > +    for ( ; ; ) {
> > > +      //
> > > +      //  One or more block IO devices are present
> > > +      //
> > > +      Status = gBS->AllocatePool (
> > > +                      EfiRuntimeServicesData,
> > > +                      BufferSize,
> > > +                      (VOID **) &pHandle
> > > +                      );
> > > +      if ( EFI_ERROR ( Status )) {
> > > +        break;
> > > +      }
> > > +
> > > +      //
> > > +      //  Locate the block IO devices
> > > +      //
> > > +      Status = gBS->LocateHandle (
> > > +                      ByProtocol,
> > > +                      &gEfiCallerIdGuid,
> > > +                      NULL,
> > > +                      &BufferSize,
> > > +                      pHandle );
> > > +      if ( EFI_ERROR ( Status )) {
> > > +        //
> > > +        //  Error getting handles
> > > +        //
> > > +
> > > +        break;
> > > +      }
> > > +
> > > +      //
> > > +      //  Remove any use of the driver
> > > +      //
> > > +      Max = BufferSize / sizeof ( pHandle[ 0 ]);
> > > +      for ( Index = 0; Max > Index; Index++ ) {
> > > +        Status = DriverStop ( &gDriverBinding,
> > > +                              pHandle[ Index ],
> > > +                              0,
> > > +                              NULL );
> > > +        if ( EFI_ERROR ( Status )) {
> > > +          break;
> > > +        }
> > > +      }
> > > +      break;
> > > +    }
> > > +  } else {
> > > +    if ( EFI_NOT_FOUND == Status ) {
> > > +      //
> > > +      //  No devices were found
> > > +      //
> > > +      Status = EFI_SUCCESS;
> > > +    }
> > > +  }
> > > +
> > > +  //
> > > +  //  Free the handle array
> > > +  //
> > > +  if ( NULL != pHandle ) {
> > > +    gBS->FreePool ( pHandle );
> > > +  }
> > > +
> > > +  //
> > > +  //  Remove the protocols installed by the EntryPoint routine.
> > > +  //
> > > +  if ( !EFI_ERROR ( Status )) {
> > > +    gBS->UninstallMultipleProtocolInterfaces (
> > > +            ImageHandle,
> > > +            &gEfiDriverBindingProtocolGuid,
> > > +            &gDriverBinding,
> > > +            &gEfiComponentNameProtocolGuid,
> > > +            &gComponentName,
> > > +            &gEfiComponentName2ProtocolGuid,
> > > +            &gComponentName2,
> > > +            NULL
> > > +            );
> > > +  }
> > > +
> > > +  //
> > > +  //  Return the unload status
> > > +  //
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +Ax88179 driver entry point.
> > > +
> > > +@param [in] ImageHandle       Handle for the image.
> > > +@param [in] pSystemTable      Address of the system table.
> > > +
> > > +@retval EFI_SUCCESS           Image successfully loaded.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +EntryPoint (
> > > +  IN EFI_HANDLE ImageHandle,
> > > +  IN EFI_SYSTEM_TABLE * pSystemTable
> > > +  )
> > > +{
> > > +  EFI_LOADED_IMAGE_PROTOCOL * pLoadedImage;
> > > +  EFI_STATUS    Status;
> > > +
> > > +
> > > +  //
> > > +  //  Enable unload support
> > > +  //
> > > +  Status = gBS->HandleProtocol (
> > > +                  gImageHandle,
> > > +                  &gEfiLoadedImageProtocolGuid,
> > > +                  (VOID **)&pLoadedImage
> > > +                  );
> > > +  if (!EFI_ERROR (Status)) {
> > > +    pLoadedImage->Unload = DriverUnload;
> > > +  }
> > > +
> > > +  //
> > > +  //  Add the driver to the list of drivers
> > > +  //
> > > +  Status = EfiLibInstallDriverBindingComponentName2 (
> > > +             ImageHandle,
> > > +             pSystemTable,
> > > +             &gDriverBinding,
> > > +             ImageHandle,
> > > +             &gComponentName,
> > > +             &gComponentName2
> > > +             );
> > > +
> > > +  return Status;
> > > +}
> > > diff --git
> > a/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork
> > .c
> > >
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork
> > .c
> > > new file mode 100644
> > > index 000000000000..25986451dcbc
> > > --- /dev/null
> > > +++
> > b/Drivers/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88179/SimpleNetwork
> > .c
> > > @@ -0,0 +1,1585 @@
> > > +/** @file
> > > +  Provides the Simple Network functions.
> > > +
> > > +  Copyright (c) 2011, Intel Corporation
> > > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +
> > > +**/
> > > +
> > > +#include "Ax88179.h"
> > > +
> > > +/**
> > > +  This function updates the filtering on the receiver.
> > > +
> > > +  This support routine calls ::Ax88179MacAddressSet to update
> > > +  the MAC address.  This routine then rebuilds the multicast
> > > +  hash by calling ::Ax88179MulticastClear and ::Ax88179MulticastSet.
> > > +  Finally this routine enables the receiver by calling
> > > +  ::Ax88179RxControl.
> > > +  @param [in] pSimpleNetwork    Simple network mode pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +ReceiveFilterUpdate (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_STATUS Status;
> > > +  UINT32 Index;
> > > +
> > > +  //
> > > +  // Set the MAC address
> > > +  //
> > > +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +  pMode = pSimpleNetwork->Mode;
> > > +  //
> > > +  // Clear the multicast hash table
> > > +  //
> > > +  Ax88179MulticastClear ( pNicDevice );
> > > +
> > > +  //
> > > +  // Load the multicast hash table
> > > +  //
> > > +  if ( 0 != ( pMode->ReceiveFilterSetting &
> > EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
> > > +    for ( Index = 0; Index < pMode->MCastFilterCount; Index++ ) {
> > > +      //
> > > +      // Enable the next multicast address
> > > +      //
> > > +      Ax88179MulticastSet ( pNicDevice,
> > > +                            &pMode->MCastFilter[ Index ].Addr[0]);
> > > +    }
> > > +  }
> > > +
> > > +  //
> > > +  // Enable the receiver
> > > +  //
> > > +  Status = Ax88179RxControl ( pNicDevice, pMode->ReceiveFilterSetting );
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  This function updates the SNP driver status.
> > > +
> > > +  This function gets the current interrupt and recycled transmit
> > > +  buffer status from the network interface.  The interrupt status
> > > +  and the media status are returned as a bit mask in InterruptStatus.
> > > +  If InterruptStatus is NULL, the interrupt status will not be read.
> > > +  Upon successful return of the media status, the MediaPresent field
> > > +  of EFI_SIMPLE_NETWORK_MODE will be updated to reflect any change
> > > +  of media status.  If TxBuf is not NULL, a recycled transmit buffer
> > > +  address will be retrived.  If a recycled transmit buffer address
> > > +  is returned in TxBuf, then the buffer has been successfully
> > > +  transmitted, and the status for that buffer is cleared.
> > > +
> > > +  This function calls ::Ax88179Rx to update the media status and
> > > +  queue any receive packets.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] pInterruptStatus  A pointer to the bit mask of the current
> > active interrupts.
> > > +                                If this is NULL, the interrupt status will not be read from
> > > +                                the device.  If this is not NULL, the interrupt status will
> > > +                                be read from teh device.  When the interrupt status is
> > read,
> > > +                                it will also be cleared.  Clearing the transmit interrupt
> > > +                                does not empty the recycled transmit buffer array.
> > > +  @param [out] ppTxBuf          Recycled transmit buffer address.  The
> > network interface will
> > > +                                not transmit if its internal recycled transmit buffer array
> > is
> > > +                                full.  Reading the transmit buffer does not clear the
> > transmit
> > > +                                interrupt.  If this is NULL, then the transmit buffer status
> > > +                                will not be read.  If there are not transmit buffers to
> > recycle
> > > +                                and TxBuf is not NULL, *TxBuf will be set to NULL.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +
> > > +**/
> > > +
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_GetStatus (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  OUT UINT32 * pInterruptStatus,
> > > +  OUT VOID ** ppTxBuf
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_STATUS Status = EFI_SUCCESS;
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // Return the transmit buffer
> > > +    //
> > > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +
> > > +    if (( NULL != ppTxBuf ) && ( NULL != pNicDevice->pTxBuffer )) {
> > > +      *ppTxBuf = pNicDevice->pTxBuffer;
> > > +      pNicDevice->pTxBuffer = NULL;
> > > +    }
> > > +
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if (EfiSimpleNetworkInitialized == pMode->State) {
> > > +      if (NULL == ppTxBuf && NULL == pInterruptStatus) {
> > > +        Status = EFI_INVALID_PARAMETER;
> > > +        goto EXIT;
> > > +      }
> > > +#if REPORTLINK
> > > +#else
> > > +      if (!pNicDevice->bLinkUp || !pNicDevice->bComplete) {
> > > +#endif
> > > +        Status = Ax88179NegotiateLinkComplete ( pNicDevice,
> > > +                                                &pNicDevice->PollCount,
> > > +                                                &pNicDevice->bComplete,
> > > +                                                &pNicDevice->bLinkUp,
> > > +                                                &pNicDevice->b100Mbps,
> > > +                                                &pNicDevice->b1000Mbps,
> > > +                                                &pNicDevice->bFullDuplex );
> > > +
> > > +        if (EFI_ERROR(Status))
> > > +          goto EXIT;
> > > +#if REPORTLINK
> > > +        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > > +          pMode->MediaPresent = TRUE;
> > > +          Status = Ax88179SetMedium (pNicDevice);
> > > +        } else {
> > > +          pMode->MediaPresent = FALSE;
> > > +        }
> > > +#else
> > > +        if (pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > > +          pMode->MediaPresent = TRUE;
> > > +          pMode->MediaPresentSupported = FALSE;
> > > +          Status = Ax88179SetMedium (pNicDevice);
> > > +
> > > +        }
> > > +      }
> > > +#endif
> > > +    } else {
> > > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > > +        Status = EFI_DEVICE_ERROR; ;
> > > +      } else {
> > > +        Status = EFI_NOT_STARTED ;
> > > +      }
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +  if ( NULL != pInterruptStatus ) {
> > > +    *pInterruptStatus = 0;
> > > +  }
> > > +
> > > +EXIT:
> > > +  gBS->RestoreTPL(TplPrevious) ;
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  This function performs read and write operations on the NVRAM device
> > > +  attached to a network interface.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] ReadWrite         TRUE for read operations, FALSE for write
> > operations.
> > > +  @param [in] Offset            Byte offset in the NVRAM device at which to
> > start the
> > > +                                read or write operation.  This must be a multiple of
> > > +                                NvRamAccessSize and less than NvRamSize.
> > > +  @param [in] BufferSize        The number of bytes to read or write from
> > the NVRAM device.
> > > +                                This must also be a multiple of NvramAccessSize.
> > > +  @param [in, out] pBuffer      A pointer to the data buffer.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_NvData (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN ReadWrite,
> > > +  IN UINTN Offset,
> > > +  IN UINTN BufferSize,
> > > +  IN OUT VOID * pBuffer
> > > +  )
> > > +{
> > > +  EFI_STATUS Status = EFI_INVALID_PARAMETER;
> > > +  EFI_TPL TplPrevious;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  NIC_DEVICE * pNicDevice;
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +  if (( NULL == pSimpleNetwork ) || ( NULL == pSimpleNetwork->Mode )) {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +    goto  EXIT;
> > > +  }
> > > +
> > > +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +  pMode = pSimpleNetwork->Mode;
> > > +
> > > +#if PASS_SCT
> > > +  if (EfiSimpleNetworkInitialized != pMode->State) {
> > > +    Status = EFI_NOT_STARTED;
> > > +    goto  EXIT;
> > > +  }
> > > +#endif
> > > +
> > > +  if ( 0 != Offset ) {
> > > +    if ((0 != (Offset % pMode->NvRamAccessSize) ) || (Offset >= pMode-
> > >NvRamSize)) {
> > > +      Status = EFI_INVALID_PARAMETER;
> > > +      goto  EXIT;
> > > +    }
> > > +  }
> > > +  //
> > > +  //Offset must be a multiple of NvRamAccessSize and less than
> > NvRamSize.
> > > +  //
> > > +  if (0 != (BufferSize % pMode->NvRamAccessSize)) {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +    goto  EXIT;
> > > +  }
> > > +
> > > +  if (BufferSize + Offset > pMode->NvRamSize) {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +    goto  EXIT;
> > > +  }
> > > +
> > > +  if (NULL == pBuffer) {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +    goto  EXIT;
> > > +  }
> > > +
> > > +  //
> > > +  //ReadWrite: TRUE FOR READ FALSE FOR WRITE
> > > +  //
> > > +  if (ReadWrite){
> > > +    UINTN i;
> > > +
> > > +    for (i = 0; i < BufferSize / 2 ; i++) {
> > > +      Status = Ax88179SromRead ( pNicDevice,
> > > +                                 (UINT32)(Offset/2 + i),
> > > +                                 (((UINT16*)pBuffer) + i));
> > > +    }
> > > +  } else {
> > > +    UINTN i;
> > > +
> > > +    Status = Ax88179EnableSromWrite(pNicDevice);
> > > +    if (EFI_ERROR(Status)) goto EXIT;
> > > +
> > > +    for (i = 0; i < BufferSize / 2 ; i++){
> > > +      Status = Ax88179SromWrite ( pNicDevice,
> > > +                                  (UINT32)(Offset/2 + i),
> > > +                                  (((UINT16*)pBuffer) + i));
> > > +    }
> > > +    Status = Ax88179DisableSromWrite(pNicDevice);
> > > +
> > > +    if (BufferSize == 272)
> > > +      Status = Ax88179ReloadSrom(pNicDevice);
> > > +  }
> > > +
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +EXIT:
> > > +  gBS->RestoreTPL (TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Resets the network adapter and allocates the transmit and receive
> > buffers
> > > +  required by the network interface; optionally, also requests allocation of
> > > +  additional transmit and receive buffers.  This routine must be called
> > before
> > > +  any other routine in the Simple Network protocol is called.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] ExtraRxBufferSize Size in bytes to add to the receive buffer
> > allocation
> > > +  @param [in] ExtraTxBufferSize Size in bytes to add to the transmit buffer
> > allocation
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_OUT_OF_RESOURCES  There was not enough memory for
> > the transmit and receive buffers
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Initialize (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN UINTN ExtraRxBufferSize,
> > > +  IN UINTN ExtraTxBufferSize
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_STATUS Status;
> > > +  UINT32  TmpState;
> > > +  EFI_TPL TplPrevious;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
> > > +
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // Determine if the interface is already started
> > > +    //
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkStarted == pMode->State ) {
> > > +      if (( 0 == ExtraRxBufferSize ) && ( 0 == ExtraTxBufferSize )) {
> > > +        //
> > > +        // Start the adapter
> > > +        //
> > > +        TmpState = pMode->State;
> > > +        pMode->State = EfiSimpleNetworkInitialized;
> > > +        Status = SN_Reset ( pSimpleNetwork, FALSE );
> > > +        if ( EFI_ERROR ( Status )) {
> > > +          //
> > > +          // Update the network state
> > > +          //
> > > +          pMode->State = TmpState;
> > > +        } else {
> > > +          pMode->MediaPresentSupported = TRUE;
> > > +          pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +          pMode->MediaPresent = Ax88179GetLinkStatus (pNicDevice);
> > > +        }
> > > +      } else {
> > > +        Status = EFI_UNSUPPORTED;
> > > +      }
> > > +    } else {
> > > +      Status = EFI_NOT_STARTED;
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  gBS->RestoreTPL (TplPrevious);
> > > +
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  This function converts a multicast IP address to a multicast HW MAC
> > address
> > > +  for all packet transactions.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bIPv6             Set to TRUE if the multicast IP address is IPv6
> > [RFC2460].
> > > +                                Set to FALSE if the multicast IP address is IPv4 [RFC 791].
> > > +  @param [in] pIP               The multicast IP address that is to be converted
> > to a
> > > +                                multicast HW MAC address.
> > > +  @param [in] pMAC              The multicast HW MAC address that is to be
> > generated from IP.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_MCastIPtoMAC (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bIPv6,
> > > +  IN EFI_IP_ADDRESS * pIP,
> > > +  IN EFI_MAC_ADDRESS * pMAC
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +  EFI_TPL TplPrevious;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // The interface must be running
> > > +    //
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +      if (pIP == NULL || pMAC == NULL) {
> > > +        Status = EFI_INVALID_PARAMETER;
> > > +        goto EXIT;
> > > +      }
> > > +      if (bIPv6){
> > > +        Status = EFI_UNSUPPORTED;
> > > +        goto EXIT;
> > > +      } else {
> > > +        //
> > > +        // check if the ip given is a mcast IP
> > > +        //
> > > +        if ((pIP->v4.Addr[0] & 0xF0) != 0xE0) {
> > > +          Status = EFI_INVALID_PARAMETER;
> > > +          goto EXIT;
> > > +        } else {
> > > +          pMAC->Addr[0] = 0x01;
> > > +          pMAC->Addr[1] = 0x00;
> > > +          pMAC->Addr[2] = 0x5e;
> > > +          pMAC->Addr[3] = (UINT8) (pIP->v4.Addr[1] & 0x7f);
> > > +          pMAC->Addr[4] = (UINT8) pIP->v4.Addr[2];
> > > +          pMAC->Addr[5] = (UINT8) pIP->v4.Addr[3];
> > > +          Status = EFI_SUCCESS;
> > > +        }
> > > +      }
> > > +    } else {
> > > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > > +        Status = EFI_DEVICE_ERROR; ;
> > > +      } else {
> > > +        Status = EFI_NOT_STARTED ;
> > > +      }
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +
> > > +EXIT:
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Attempt to receive a packet from the network adapter.
> > > +
> > > +  This function retrieves one packet from the receive queue of the
> > network
> > > +  interface.  If there are no packets on the receive queue, then
> > EFI_NOT_READY
> > > +  will be returned.  If there is a packet on the receive queue, and the size
> > > +  of the packet is smaller than BufferSize, then the contents of the packet
> > > +  will be placed in Buffer, and BufferSize will be udpated with the actual
> > > +  size of the packet.  In addition, if SrcAddr, DestAddr, and Protocol are
> > > +  not NULL, then these values will be extracted from the media header and
> > > +  returned.  If BufferSize is smaller than the received packet, then the
> > > +  size of the receive packet will be placed in BufferSize and
> > > +  EFI_BUFFER_TOO_SMALL will be returned.
> > > +
> > > +  This routine calls ::Ax88179Rx to update the media status and
> > > +  empty the network adapter of receive packets.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [out] pHeaderSize      The size, in bytes, of the media header to
> > be filled in by
> > > +                                the Transmit() function.  If HeaderSize is non-zero, then
> > > +                                it must be equal to SimpleNetwork->Mode-
> > >MediaHeaderSize
> > > +                                and DestAddr and Protocol parameters must not be
> > NULL.
> > > +  @param [out] pBufferSize      The size, in bytes, of the entire packet
> > (media header and
> > > +                                data) to be transmitted through the network interface.
> > > +  @param [out] pBuffer          A pointer to the packet (media header
> > followed by data) to
> > > +                                to be transmitted.  This parameter can not be NULL.  If
> > > +                                HeaderSize is zero, then the media header is Buffer must
> > > +                                already be filled in by the caller.  If HeaderSize is
> > nonzero,
> > > +                                then the media header will be filled in by the Transmit()
> > > +                                function.
> > > +  @param [out] pSrcAddr         The source HW MAC address.  If HeaderSize
> > is zero, then
> > > +                                this parameter is ignored.  If HeaderSize is nonzero and
> > > +                                SrcAddr is NULL, then SimpleNetwork->Mode-
> > >CurrentAddress
> > > +                                is used for the source HW MAC address.
> > > +  @param [out] pDestAddr        The destination HW MAC address.  If
> > HeaderSize is zero, then
> > > +                                this parameter is ignored.
> > > +  @param [out] pProtocol        The type of header to build.  If HeaderSize is
> > zero, then
> > > +                                this parameter is ignored.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_NOT_READY         No packets have been received on the
> > network interface.
> > > +  @retval EFI_BUFFER_TOO_SMALL  The packet is larger than BufferSize
> > bytes.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Receive (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  OUT UINTN                      * pHeaderSize,
> > > +  OUT UINTN                      * pBufferSize,
> > > +  OUT VOID                       * pBuffer,
> > > +  OUT EFI_MAC_ADDRESS            * pSrcAddr,
> > > +  OUT EFI_MAC_ADDRESS            * pDestAddr,
> > > +  OUT UINT16                     * pProtocol
> > > +  )
> > > +{
> > > +  ETHERNET_HEADER * pHeader;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_STATUS Status;
> > > +  UINT16 Type = 0;
> > > +  UINT16  CurrentPktLen;
> > > +  BOOLEAN bValid = TRUE;
> > > +  EFI_TPL TplPrevious;
> > > +  TplPrevious = gBS->RaiseTPL (TPL_CALLBACK);
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // The interface must be running
> > > +    //
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +      if ((pBufferSize == NULL) || (pBuffer == NULL)) {
> > > +        Status = EFI_INVALID_PARAMETER;
> > > +        gBS->RestoreTPL (TplPrevious);
> > > +        return Status;
> > > +      }
> > > +      //
> > > +      // Update the link status
> > > +      //
> > > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > > +        if ((NULL != pHeaderSize) && (7720 == *pHeaderSize)) {
> > > +          pNicDevice->Grub_f = TRUE;
> > > +        }
> > > +
> > > +        if ((pNicDevice->Grub_f) && (7720 != *pHeaderSize)) {
> > > +          gBS->RestoreTPL (TplPrevious);
> > > +          return EFI_NOT_READY;
> > > +        }
> > > +        //
> > > +        //  Attempt to do bulk in
> > > +        //
> > > +        if (0 == pNicDevice->PktCnt) {
> > > +          Status = Ax88179BulkIn(pNicDevice);
> > > +          if (EFI_ERROR(Status))
> > > +            goto  no_pkt;
> > > +        }
> > > +        CurrentPktLen = *((UINT16*) (pNicDevice->pCurPktHdrOff + 2));
> > > +        if (CurrentPktLen & (RXHDR_DROP | RXHDR_CRCERR))
> > > +          bValid = FALSE;
> > > +        CurrentPktLen &=  0x1fff;
> > > +        CurrentPktLen -= 2; /*EEEE*/
> > > +
> > > +        if (bValid && ( 60 <= CurrentPktLen ) &&
> > > +        ((CurrentPktLen - 14) <= MAX_ETHERNET_PKT_SIZE) &&
> > > +            (*((UINT16*)pNicDevice->pCurPktOff)) == 0xEEEE) {
> > > +          if (*pBufferSize < (UINTN)CurrentPktLen) {
> > > +            gBS->RestoreTPL (TplPrevious);
> > > +            return EFI_BUFFER_TOO_SMALL;
> > > +          }
> > > +          *pBufferSize = CurrentPktLen;
> > > +          CopyMem ( pBuffer, pNicDevice->pCurPktOff + 2, CurrentPktLen );
> > > +
> > > +          pHeader = (ETHERNET_HEADER *) pNicDevice->pCurPktOff + 2;
> > > +
> > > +          if ( NULL != pHeaderSize  && (7720 != *pHeaderSize)) {
> > > +            *pHeaderSize = sizeof ( *pHeader );
> > > +          }
> > > +
> > > +          if ( NULL != pDestAddr ) {
> > > +            CopyMem ( pDestAddr, &pHeader->dest_addr,
> > PXE_HWADDR_LEN_ETHER );
> > > +          }
> > > +          if ( NULL != pSrcAddr ) {
> > > +            CopyMem ( pSrcAddr, &pHeader->src_addr,
> > PXE_HWADDR_LEN_ETHER );
> > > +          }
> > > +          if ( NULL != pProtocol ) {
> > > +            Type = pHeader->type;
> > > +            Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
> > > +            *pProtocol = Type;
> > > +          }
> > > +          pNicDevice->PktCnt--;
> > > +          pNicDevice->pCurPktHdrOff += 4;
> > > +          pNicDevice->pCurPktOff += (CurrentPktLen + 2 + 7) & 0xfff8;
> > > +          Status = EFI_SUCCESS;
> > > +        } else {
> > > +          pNicDevice->PktCnt = 0;
> > > +          Status = EFI_NOT_READY;
> > > +        }
> > > +      } else {
> > > +        Status = EFI_NOT_READY;
> > > +      }
> > > +    } else {
> > > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > > +        Status = EFI_DEVICE_ERROR;
> > > +      } else {
> > > +        Status = EFI_NOT_STARTED ;
> > > +      }
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +no_pkt:
> > > +  gBS->RestoreTPL (TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  This function is used to enable and disable the hardware and software
> > receive
> > > +  filters for the underlying network device.
> > > +
> > > +  The receive filter change is broken down into three steps:
> > > +
> > > +    1.  The filter mask bits that are set (ON) in the Enable parameter
> > > +        are added to the current receive filter settings.
> > > +
> > > +    2.  The filter mask bits that are set (ON) in the Disable parameter
> > > +        are subtracted from the updated receive filter settins.
> > > +
> > > +    3.  If the resulting filter settigns is not supported by the hardware
> > > +        a more liberal setting is selected.
> > > +
> > > +  If the same bits are set in the Enable and Disable parameters, then the
> > bits
> > > +  in the Disable parameter takes precedence.
> > > +
> > > +  If the ResetMCastFilter parameter is TRUE, then the multicast address
> > list
> > > +  filter is disabled (irregardless of what other multicast bits are set in
> > > +  the enable and Disable parameters).  The SNP->Mode->MCastFilterCount
> > field
> > > +  is set to zero.  The SNP->Mode->MCastFilter contents are undefined.
> > > +
> > > +  After enableing or disabling receive filter settings, software should
> > > +  verify the new settings by checking the SNP->Mode-
> > >ReceeiveFilterSettings,
> > > +  SNP->Mode->MCastFilterCount and SNP->Mode->MCastFilter fields.
> > > +
> > > +  Note: Some network drivers and/or devices will automatically promote
> > > +  receive filter settings if the requested setting can not be honored.
> > > +  For example, if a request for four multicast addresses is made and
> > > +  the underlying hardware only supports two multicast addresses the
> > > +  driver might set the promiscuous or promiscuous multicast receive filters
> > > +  instead.  The receiving software is responsible for discarding any extra
> > > +  packets that get through the hardware receive filters.
> > > +
> > > +  If ResetMCastFilter is TRUE, then the multicast receive filter list
> > > +  on the network interface will be reset to the default multicast receive
> > > +  filter list.  If ResetMCastFilter is FALSE, and this network interface
> > > +  allows the multicast receive filter list to be modified, then the
> > > +  MCastFilterCnt and MCastFilter are used to update the current multicast
> > > +  receive filter list.  The modified receive filter list settings can be
> > > +  found in the MCastFilter field of EFI_SIMPLE_NETWORK_MODE.
> > > +
> > > +  This routine calls ::ReceiveFilterUpdate to update the receive
> > > +  state in the network adapter.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] Enable            A bit mask of receive filters to enable on the
> > network interface.
> > > +  @param [in] Disable           A bit mask of receive filters to disable on the
> > network interface.
> > > +                                For backward compatibility with EFI 1.1 platforms, the
> > > +                                EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit must
> > be set
> > > +                                when the ResetMCastFilter parameter is TRUE.
> > > +  @param [in] bResetMCastFilter Set to TRUE to reset the contents of the
> > multicast receive
> > > +                                filters on the network interface to their default values.
> > > +  @param [in] MCastFilterCnt    Number of multicast HW MAC address in
> > the new MCastFilter list.
> > > +                                This value must be less than or equal to the
> > MaxMCastFilterCnt
> > > +                                field of EFI_SIMPLE_NETWORK_MODE.  This field is
> > optional if
> > > +                                ResetMCastFilter is TRUE.
> > > +  @param [in] pMCastFilter      A pointer to a list of new multicast receive
> > filter HW MAC
> > > +                                addresses.  This list will replace any existing multicast
> > > +                                HW MAC address list.  This field is optional if
> > ResetMCastFilter
> > > +                                is TRUE.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_ReceiveFilters (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN UINT32 Enable,
> > > +  IN UINT32 Disable,
> > > +/*
> > > +#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
> > > +#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
> > > +#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
> > > +#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
> > > +#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST
> > 0x10
> > > +*/
> > > +  IN BOOLEAN bResetMCastFilter,
> > > +  IN UINTN MCastFilterCnt,
> > > +  IN EFI_MAC_ADDRESS * pMCastFilter
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_STATUS Status = EFI_SUCCESS;
> > > +  EFI_TPL TplPrevious;
> > > +  NIC_DEVICE * pNicDevice;
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +  pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +  pMode = pSimpleNetwork->Mode;
> > > +
> > > +  if (pSimpleNetwork == NULL) {
> > > +    gBS->RestoreTPL(TplPrevious);
> > > +    return EFI_INVALID_PARAMETER;
> > > +  }
> > > +
> > > +  switch (pMode->State) {
> > > +  case EfiSimpleNetworkInitialized:
> > > +    break;
> > > +  case EfiSimpleNetworkStopped:
> > > +    Status = EFI_NOT_STARTED;
> > > +    gBS->RestoreTPL(TplPrevious);
> > > +    return Status;
> > > +
> > > +  default:
> > > +    Status = EFI_DEVICE_ERROR;
> > > +    gBS->RestoreTPL(TplPrevious);
> > > +    return Status;
> > > +  }
> > > +
> > > +  //
> > > +  // check if we are asked to enable or disable something that the UNDI
> > > +  // does not even support!
> > > +  //
> > > +  if (((Enable &~pMode->ReceiveFilterMask) != 0) ||
> > > +      ((Disable &~pMode->ReceiveFilterMask) != 0)) {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +    gBS->RestoreTPL(TplPrevious);
> > > +    return Status;
> > > +  }
> > > +
> > > +  if (bResetMCastFilter) {
> > > +    Disable |= (EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST & pMode-
> > >ReceiveFilterMask);
> > > +    MCastFilterCnt = 0;
> > > +    pMode->MCastFilterCount = 0;
> > > +    if ( (0 == (pMode->ReceiveFilterSetting &
> > EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST)) &&
> > > +   Enable == 0 && Disable == 2) {
> > > +      gBS->RestoreTPL(TplPrevious);
> > > +      return EFI_SUCCESS;
> > > +    }
> > > +  } else {
> > > +    if (MCastFilterCnt != 0) {
> > > +      UINTN i;
> > > +
> > > +      EFI_MAC_ADDRESS * pMulticastAddress;
> > > +      pMulticastAddress =  pMCastFilter;
> > > +
> > > +      if ((MCastFilterCnt > pMode->MaxMCastFilterCount) ||
> > > +          (pMCastFilter == NULL)) {
> > > +        Status = EFI_INVALID_PARAMETER;
> > > +        gBS->RestoreTPL(TplPrevious);
> > > +        return Status;
> > > +      }
> > > +
> > > +      for ( i = 0 ; i < MCastFilterCnt ; i++ ) {
> > > +          UINT8  tmp;
> > > +
> > > +          tmp = pMulticastAddress->Addr[0];
> > > +          if ( (tmp & 0x01) != 0x01 ) {
> > > +            gBS->RestoreTPL(TplPrevious);
> > > +            return EFI_INVALID_PARAMETER;
> > > +          }
> > > +          pMulticastAddress++;
> > > +      }
> > > +
> > > +      pMode->MCastFilterCount = (UINT32)MCastFilterCnt;
> > > +      CopyMem (&pMode->MCastFilter[0],
> > > +               pMCastFilter,
> > > +               MCastFilterCnt * sizeof ( EFI_MAC_ADDRESS/**pMCastFilter*/ ));
> > > +    }
> > > +  }
> > > +
> > > +  if (Enable == 0 && Disable == 0 && !bResetMCastFilter &&
> > MCastFilterCnt == 0) {
> > > +    Status = EFI_SUCCESS;
> > > +    gBS->RestoreTPL(TplPrevious);
> > > +    return Status;
> > > +  }
> > > +
> > > +  if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0 &&
> > MCastFilterCnt == 0) {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +    gBS->RestoreTPL(TplPrevious);
> > > +    return Status;
> > > +  }
> > > +
> > > +  pMode->ReceiveFilterSetting |= Enable;
> > > +  pMode->ReceiveFilterSetting &= ~Disable;
> > > +
> > > +  Status = ReceiveFilterUpdate (pSimpleNetwork);
> > > +
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Reset the network adapter.
> > > +
> > > +  Resets a network adapter and reinitializes it with the parameters that
> > > +  were provided in the previous call to Initialize ().  The transmit and
> > > +  receive queues are cleared.  Receive filters, the station address, the
> > > +  statistics, and the multicast-IP-to-HW MAC addresses are not reset by
> > > +  this call.
> > > +
> > > +  This routine calls ::Ax88179Reset to perform the adapter specific
> > > +  reset operation.  This routine also starts the link negotiation
> > > +  by calling ::Ax88179NegotiateLinkStart.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bExtendedVerification  Indicates that the driver may
> > perform a more
> > > +                                exhaustive verification operation of the device
> > > +                                during reset.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Reset (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bExtendedVerification
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_STATUS Status;
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +  //
> > > +  //  Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +      //
> > > +      //  Update the device state
> > > +      //
> > > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +
> > > +      //
> > > +      //  Reset the device
> > > +      //
> > > +      if (!pNicDevice->bFirstRst) {
> > > +        Status = EFI_SUCCESS;
> > > +      } else {
> > > +        Status = Ax88179Reset ( pNicDevice );
> > > +        if ( !EFI_ERROR ( Status )) {
> > > +          Status = ReceiveFilterUpdate ( pSimpleNetwork );
> > > +          if ( !EFI_ERROR ( Status ) && !pNicDevice->bLinkUp && pNicDevice-
> > >bFirstRst) {
> > > +            Status = Ax88179NegotiateLinkStart ( pNicDevice );
> > > +            pNicDevice->bFirstRst = FALSE;
> > > +          }
> > > +        }
> > > +      }
> > > +    } else {
> > > +      Status = EFI_NOT_STARTED;
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  Initialize the simple network protocol.
> > > +
> > > +  This routine calls ::Ax88179MacAddressGet to obtain the
> > > +  MAC address.
> > > +
> > > +  @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
> > > +
> > > +  @retval EFI_SUCCESS     Setup was successful
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +SN_Setup (
> > > +  IN NIC_DEVICE * pNicDevice
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork;
> > > +  EFI_STATUS Status;
> > > +
> > > +  //
> > > +  // Initialize the simple network protocol
> > > +  //
> > > +  pSimpleNetwork = &pNicDevice->SimpleNetwork;
> > > +  pSimpleNetwork->Revision =
> > EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
> > > +  pSimpleNetwork->Start = (EFI_SIMPLE_NETWORK_START)SN_Start;
> > > +  pSimpleNetwork->Stop = (EFI_SIMPLE_NETWORK_STOP)SN_Stop;
> > > +  pSimpleNetwork->Initialize =
> > (EFI_SIMPLE_NETWORK_INITIALIZE)SN_Initialize;
> > > +  pSimpleNetwork->Reset = (EFI_SIMPLE_NETWORK_RESET)SN_Reset;
> > > +  pSimpleNetwork->Shutdown =
> > (EFI_SIMPLE_NETWORK_SHUTDOWN)SN_Shutdown;
> > > +  pSimpleNetwork->ReceiveFilters =
> > (EFI_SIMPLE_NETWORK_RECEIVE_FILTERS)SN_ReceiveFilters;
> > > +  pSimpleNetwork->StationAddress =
> > (EFI_SIMPLE_NETWORK_STATION_ADDRESS)SN_StationAddress;
> > > +  pSimpleNetwork->Statistics =
> > (EFI_SIMPLE_NETWORK_STATISTICS)SN_Statistics;
> > > +  pSimpleNetwork->MCastIpToMac =
> > (EFI_SIMPLE_NETWORK_MCAST_IP_TO_MAC)SN_MCastIPtoMAC;
> > > +  pSimpleNetwork->NvData =
> > (EFI_SIMPLE_NETWORK_NVDATA)SN_NvData;
> > > +  pSimpleNetwork->GetStatus =
> > (EFI_SIMPLE_NETWORK_GET_STATUS)SN_GetStatus;
> > > +  pSimpleNetwork->Transmit =
> > (EFI_SIMPLE_NETWORK_TRANSMIT)SN_Transmit;
> > > +  pSimpleNetwork->Receive =
> > (EFI_SIMPLE_NETWORK_RECEIVE)SN_Receive;
> > > +  pSimpleNetwork->WaitForPacket = NULL;
> > > +  pMode = &pNicDevice->SimpleNetworkData;
> > > +  pSimpleNetwork->Mode = pMode;
> > > +  pMode->State = EfiSimpleNetworkStopped;
> > > +  pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
> > > +  pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
> > > +  pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
> > > +  pMode->ReceiveFilterMask =
> > EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> > > +                           | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> > > +                           | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> > > +                           | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
> > > +                           |
> > EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
> > > +  pMode->ReceiveFilterSetting =
> > EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> > > +                              | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
> > > +  pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> > > +  pMode->MCastFilterCount = 0;
> > > +  pMode->NvRamSize = 512;
> > > +  pMode->NvRamAccessSize = 2;
> > > +  SetMem ( &pMode->BroadcastAddress,
> > > +           PXE_HWADDR_LEN_ETHER,
> > > +           0xff );
> > > +  pMode->IfType = EfiNetworkInterfaceUndi;
> > > +  pMode->MacAddressChangeable = TRUE;
> > > +  pMode->MultipleTxSupported = FALSE;
> > > +  pMode->MediaPresentSupported = TRUE;
> > > +  pMode->MediaPresent = FALSE;
> > > +  //
> > > +  //  Read the MAC address
> > > +  //
> > > +  pNicDevice->PhyId = PHY_ID_INTERNAL;
> > > +  pNicDevice->b100Mbps = FALSE;
> > > +  pNicDevice->b1000Mbps = TRUE;
> > > +  pNicDevice->bFullDuplex = TRUE;
> > > +  pNicDevice->bComplete = FALSE;
> > > +  pNicDevice->bLinkUp = FALSE;
> > > +  pNicDevice->Grub_f = FALSE;
> > > +  pNicDevice->bFirstRst = TRUE;
> > > +  pNicDevice->PktCnt = 0;
> > > +  pNicDevice->SkipRXCnt = 0;
> > > +  pNicDevice->usbMaxPktSize = 512;
> > > +  pNicDevice->bSetZeroLen = TRUE;
> > > +
> > > +  Status = Ax88179MacAddressGet ( pNicDevice,
> > > +                                  &pMode->PermanentAddress.Addr[0]);
> > > +  if ( !EFI_ERROR ( Status )) {
> > > +    //
> > > +    //  Use the hardware address as the current address
> > > +    //
> > > +    CopyMem ( &pMode->CurrentAddress,
> > > +              &pMode->PermanentAddress,
> > > +              PXE_HWADDR_LEN_ETHER );
> > > +
> > > +    CopyMem ( &pNicDevice->MAC,
> > > +              &pMode->PermanentAddress,
> > > +              PXE_HWADDR_LEN_ETHER );
> > > +
> > > +  } else {
> > > +    return Status;
> > > +  }
> > > +
> > > +  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
> > > +                               AX88179_MAX_BULKIN_SIZE,
> > > +                               (VOID **) &pNicDevice->pBulkInbuf );
> > > +
> > > +  if (EFI_ERROR (Status)) {
> > > +  return Status;
> > > +  }
> > > +
> > > +  Status = gBS->AllocatePool ( EfiRuntimeServicesData,
> > > +                               sizeof ( TX_PACKET ),
> > > +                               (VOID **) &pNicDevice->pTxTest );
> > > +  if (EFI_ERROR (Status)) {
> > > +  gBS->FreePool (pNicDevice->pBulkInbuf);
> > > +  }
> > > +
> > > +  //
> > > +  //  Return the setup status
> > > +  //
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  This routine starts the network interface.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_ALREADY_STARTED   The network interface was already
> > started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Start (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  )
> > > +{
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_STATUS Status;
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +
> > > +
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  Status = EFI_INVALID_PARAMETER;
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkStopped == pMode->State ) {
> > > +      //
> > > +      // Initialize the mode structure
> > > +      // NVRAM access is not supported
> > > +      //
> > > +      ZeroMem ( pMode, sizeof ( *pMode ));
> > > +
> > > +      pMode->State = EfiSimpleNetworkStarted;
> > > +      pMode->HwAddressSize = PXE_HWADDR_LEN_ETHER;
> > > +      pMode->MediaHeaderSize = sizeof ( ETHERNET_HEADER );
> > > +      pMode->MaxPacketSize = MAX_ETHERNET_PKT_SIZE;
> > > +      pMode->ReceiveFilterMask =
> > EFI_SIMPLE_NETWORK_RECEIVE_UNICAST
> > > +                               | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> > > +                               | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> > > +                               | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS
> > > +                               |
> > EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
> > > +      pMode->ReceiveFilterSetting =
> > EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;
> > > +      pMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> > > +      pMode->MCastFilterCount = 0;
> > > +      pMode->NvRamSize = 512;
> > > +      pMode->NvRamAccessSize = 2;
> > > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +      Status = Ax88179MacAddressGet ( pNicDevice, &pMode-
> > >PermanentAddress.Addr[0]);
> > > +      CopyMem ( &pMode->CurrentAddress,
> > > +                &pMode->PermanentAddress,
> > > +                sizeof ( pMode->CurrentAddress ));
> > > +      SetMem(&pMode->BroadcastAddress, PXE_HWADDR_LEN_ETHER,
> > 0xff);
> > > +      pMode->IfType = EfiNetworkInterfaceUndi;
> > > +      pMode->MacAddressChangeable = TRUE;
> > > +      pMode->MultipleTxSupported = FALSE;
> > > +      pMode->MediaPresentSupported = TRUE;
> > > +      pMode->MediaPresent = FALSE;
> > > +
> > > +    } else {
> > > +      Status = EFI_ALREADY_STARTED;
> > > +    }
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Set the MAC address.
> > > +
> > > +  This function modifies or resets the current station address of a
> > > +  network interface.  If Reset is TRUE, then the current station address
> > > +  is set ot the network interface's permanent address.  If Reset if FALSE
> > > +  then the current station address is changed to the address specified by
> > > +  pNew.
> > > +
> > > +  This routine calls ::Ax88179MacAddressSet to update the MAC address
> > > +  in the network adapter.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bReset            Flag used to reset the station address to the
> > > +                                network interface's permanent address.
> > > +  @param [in] pNew              New station address to be used for the
> > network
> > > +                                interface.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_StationAddress (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bReset,
> > > +  IN EFI_MAC_ADDRESS * pNew
> > > +  )
> > > +{
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_STATUS Status;
> > > +
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) &&
> > > +      ( NULL != pSimpleNetwork->Mode ) &&
> > > +      (( !bReset ) || ( bReset && ( NULL != pNew )))) {
> > > +    //
> > > +    // Verify that the adapter is already started
> > > +    //
> > > +    pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +      //
> > > +      // Determine the adapter MAC address
> > > +      //
> > > +      if ( bReset ) {
> > > +        //
> > > +        // Use the permanent address
> > > +        //
> > > +        CopyMem ( &pMode->CurrentAddress,
> > > +                  &pMode->PermanentAddress,
> > > +                  sizeof ( pMode->CurrentAddress ));
> > > +      } else {
> > > +        //
> > > +        // Use the specified address
> > > +        //
> > > +        CopyMem ( &pMode->CurrentAddress,
> > > +                  pNew,
> > > +                  sizeof ( pMode->CurrentAddress ));
> > > +      }
> > > +
> > > +      //
> > > +      // Update the address on the adapter
> > > +      //
> > > +      Status = Ax88179MacAddressSet ( pNicDevice, &pMode-
> > >CurrentAddress.Addr[0]);
> > > +    }  else {
> > > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > > +          Status = EFI_DEVICE_ERROR; ;
> > > +      } else {
> > > +          Status = EFI_NOT_STARTED ;
> > > +      }
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  This function resets or collects the statistics on a network interface.
> > > +  If the size of the statistics table specified by StatisticsSize is not
> > > +  big enough for all of the statistics that are collected by the network
> > > +  interface, then a partial buffer of statistics is returned in
> > > +  StatisticsTable.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] bReset            Set to TRUE to reset the statistics for the
> > network interface.
> > > +  @param [in, out] pStatisticsSize  On input the size, in bytes, of
> > StatisticsTable.  On output
> > > +                                the size, in bytes, of the resulting table of statistics.
> > > +  @param [out] pStatisticsTable A pointer to the
> > EFI_NETWORK_STATISTICS structure that
> > > +                                conains the statistics.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the
> > buffer is too small.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +  typedef struct {
> > > +  UINT64 RxTotalFrames;
> > > +  UINT64 RxGoodFrames;
> > > +  UINT64 RxUndersizeFrames;
> > > +  UINT64 RxOversizeFrames;
> > > +  UINT64 RxDroppedFrames;
> > > +  UINT64 RxUnicastFrames;
> > > +  UINT64 RxBroadcastFrames;
> > > +  UINT64 RxMulticastFrames;
> > > +  UINT64 RxCrcErrorFrames;
> > > +  UINT64 RxTotalBytes;
> > > +  UINT64 TxTotalFrames;
> > > +  UINT64 TxGoodFrames;
> > > +  UINT64 TxUndersizeFrames;
> > > +  UINT64 TxOversizeFrames;
> > > +  UINT64 TxDroppedFrames;
> > > +  UINT64 TxUnicastFrames;
> > > +  UINT64 TxBroadcastFrames;
> > > +  UINT64 TxMulticastFrames;
> > > +  UINT64 TxCrcErrorFrames;
> > > +  UINT64 TxTotalBytes;
> > > +  UINT64 Collisions;
> > > +  UINT64 UnsupportedProtocol;
> > > +  } EFI_NETWORK_STATISTICS;
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Statistics (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN BOOLEAN bReset,
> > > +  IN OUT UINTN * pStatisticsSize,
> > > +  OUT EFI_NETWORK_STATISTICS * pStatisticsTable
> > > +  )
> > > +{
> > > +  EFI_STATUS Status;
> > > +  EFI_TPL TplPrevious;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +
> > > +
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +  pMode = pSimpleNetwork->Mode;
> > > +
> > > +  if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +    if (NULL != pStatisticsSize && 0 == *pStatisticsSize) {
> > > +      Status = EFI_BUFFER_TOO_SMALL;
> > > +      goto EXIT;
> > > +    }
> > > +
> > > +    if(bReset) {
> > > +      Status = EFI_SUCCESS;
> > > +    } else {
> > > +      Status = EFI_SUCCESS;
> > > +    }
> > > +  } else {
> > > +    if (EfiSimpleNetworkStarted == pMode->State) {
> > > +      Status = EFI_DEVICE_ERROR; ;
> > > +    } else {
> > > +      Status = EFI_NOT_STARTED ;
> > > +    }
> > > +  }
> > > +
> > > +  Status = EFI_UNSUPPORTED;
> > > +EXIT:
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  This function stops a network interface.  This call is only valid
> > > +  if the network interface is in the started state.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Stop (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_STATUS Status;
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // Determine if the interface is started
> > > +    //
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkStarted == pMode->State ) {
> > > +        pMode->State = EfiSimpleNetworkStopped;
> > > +        Status = EFI_SUCCESS;
> > > +    } else {
> > > +        Status = EFI_NOT_STARTED;
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  gBS->RestoreTPL(TplPrevious);
> > > +  return Status;
> > > +}
> > > +
> > > +/**
> > > +  This function releases the memory buffers assigned in the Initialize() call.
> > > +  Pending transmits and receives are lost, and interrupts are cleared and
> > disabled.
> > > +  After this call, only Initialize() and Stop() calls may be used.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +  @retval EFI_UNSUPPORTED       The increased buffer size feature is not
> > supported.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Shutdown (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
> > > +  )
> > > +{
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  EFI_STATUS Status;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // Determine if the interface is already started
> > > +    //
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +      //
> > > +      // Stop the adapter
> > > +      //
> > > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +
> > > +      Status = Ax88179MacAddressGet ( pNicDevice, &pMode-
> > >PermanentAddress.Addr[0]);
> > > +      if ( !EFI_ERROR ( Status )) {
> > > +        //
> > > +        // Update the network state
> > > +        //
> > > +        pMode->State = EfiSimpleNetworkStarted;
> > > +      } else if ( EFI_DEVICE_ERROR == Status ) {
> > > +        pMode->State = EfiSimpleNetworkStopped;
> > > +      }
> > > +    } else {
> > > +      Status = EFI_NOT_STARTED;
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +  //
> > > +  // Return the operation status
> > > +  //
> > > +  gBS->RestoreTPL(TplPrevious );
> > > +  return Status;
> > > +}
> > > +
> > > +
> > > +/**
> > > +  Send a packet over the network.
> > > +
> > > +  This function places the packet specified by Header and Buffer on
> > > +  the transmit queue.  This function performs a non-blocking transmit
> > > +  operation.  When the transmit is complete, the buffer is returned
> > > +  via the GetStatus() call.
> > > +
> > > +  This routine calls ::Ax88179Rx to empty the network adapter of
> > > +  receive packets.  The routine then passes the transmit packet
> > > +  to the network adapter.
> > > +
> > > +  @param [in] pSimpleNetwork    Protocol instance pointer
> > > +  @param [in] HeaderSize        The size, in bytes, of the media header to be
> > filled in by
> > > +                                the Transmit() function.  If HeaderSize is non-zero, then
> > > +                                it must be equal to SimpleNetwork->Mode-
> > >MediaHeaderSize
> > > +                                and DestAddr and Protocol parameters must not be
> > NULL.
> > > +  @param [in] BufferSize        The size, in bytes, of the entire packet (media
> > header and
> > > +                                data) to be transmitted through the network interface.
> > > +  @param [in] pBuffer           A pointer to the packet (media header
> > followed by data) to
> > > +                                to be transmitted.  This parameter can not be NULL.  If
> > > +                                HeaderSize is zero, then the media header is Buffer must
> > > +                                already be filled in by the caller.  If HeaderSize is
> > nonzero,
> > > +                                then the media header will be filled in by the Transmit()
> > > +                                function.
> > > +  @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize
> > is zero, then
> > > +                                this parameter is ignored.  If HeaderSize is nonzero and
> > > +                                SrcAddr is NULL, then SimpleNetwork->Mode-
> > >CurrentAddress
> > > +                                is used for the source HW MAC address.
> > > +  @param [in] pDestAddr         The destination HW MAC address.  If
> > HeaderSize is zero, then
> > > +                                this parameter is ignored.
> > > +  @param [in] pProtocol         The type of header to build.  If HeaderSize is
> > zero, then
> > > +                                this parameter is ignored.
> > > +
> > > +  @retval EFI_SUCCESS           This operation was successful.
> > > +  @retval EFI_NOT_STARTED       The network interface was not started.
> > > +  @retval EFI_NOT_READY         The network interface is too busy to
> > accept this transmit request.
> > > +  @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too
> > small.
> > > +  @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was
> > NULL or did not point to a valid
> > > +                                EFI_SIMPLE_NETWORK_PROTOCOL structure.
> > > +  @retval EFI_DEVICE_ERROR      The command could not be sent to the
> > network interface.
> > > +
> > > +**/
> > > +EFI_STATUS
> > > +EFIAPI
> > > +SN_Transmit (
> > > +  IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
> > > +  IN UINTN HeaderSize,
> > > +  IN UINTN BufferSize,
> > > +  IN VOID * pBuffer,
> > > +  IN EFI_MAC_ADDRESS * pSrcAddr,
> > > +  IN EFI_MAC_ADDRESS * pDestAddr,
> > > +  IN UINT16 * pProtocol
> > > +  )
> > > +{
> > > +  ETHERNET_HEADER * pHeader;
> > > +  EFI_SIMPLE_NETWORK_MODE * pMode;
> > > +  NIC_DEVICE * pNicDevice;
> > > +  EFI_USB_IO_PROTOCOL * pUsbIo;
> > > +  EFI_STATUS Status;
> > > +  UINTN TransferLength;
> > > +  UINT32 TransferStatus;
> > > +  UINT16 Type = 0;
> > > +  EFI_TPL TplPrevious;
> > > +
> > > +  TplPrevious = gBS->RaiseTPL(TPL_CALLBACK);
> > > +  //
> > > +  // Verify the parameters
> > > +  //
> > > +  if (( NULL != pSimpleNetwork ) && ( NULL != pSimpleNetwork->Mode )) {
> > > +    //
> > > +    // The interface must be running
> > > +    //
> > > +    pMode = pSimpleNetwork->Mode;
> > > +    if ( EfiSimpleNetworkInitialized == pMode->State ) {
> > > +      //
> > > +      // Update the link status
> > > +      //
> > > +      pNicDevice = DEV_FROM_SIMPLE_NETWORK ( pSimpleNetwork );
> > > +
> > > +      if ( pNicDevice->bLinkUp && pNicDevice->bComplete) {
> > > +        if (0 != HeaderSize && pMode->MediaHeaderSize != HeaderSize)  {
> > > +            Status = EFI_INVALID_PARAMETER;
> > > +            goto EXIT;
> > > +        }
> > > +        if (BufferSize <  pMode->MediaHeaderSize) {
> > > +            Status = EFI_INVALID_PARAMETER;
> > > +            goto EXIT;
> > > +        }
> > > +        if (NULL == pBuffer) {
> > > +            Status = EFI_INVALID_PARAMETER;
> > > +            goto EXIT;
> > > +        }
> > > +        if (0 != HeaderSize && NULL == pDestAddr) {
> > > +            Status = EFI_INVALID_PARAMETER;
> > > +            goto EXIT;
> > > +        }
> > > +        if (0 != HeaderSize && NULL == pProtocol) {
> > > +            Status = EFI_INVALID_PARAMETER;
> > > +            goto EXIT;
> > > +        }
> > > +        //
> > > +        //  Copy the packet into the USB buffer
> > > +        //
> > > +        // pBuffer starting with 14 bytes 0
> > > +        CopyMem ( &pNicDevice->pTxTest->Data[0], pBuffer, BufferSize);
> > > +        pNicDevice->pTxTest->TxHdr1 = (UINT32) BufferSize;
> > > +        pNicDevice->pTxTest->TxHdr2 = 0;
> > > +        //
> > > +        //  Transmit the packet
> > > +        //
> > > +        pHeader = (ETHERNET_HEADER *) &pNicDevice->pTxTest->Data[0];
> > > +        if ( 0 != HeaderSize ) {
> > > +          if ( NULL != pDestAddr ) {
> > > +            CopyMem ( &pHeader->dest_addr, pDestAddr,
> > PXE_HWADDR_LEN_ETHER );
> > > +          }
> > > +          if ( NULL != pSrcAddr ) {
> > > +            CopyMem ( &pHeader->src_addr, pSrcAddr,
> > PXE_HWADDR_LEN_ETHER );
> > > +          } else {
> > > +            CopyMem ( &pHeader->src_addr, &pMode-
> > >CurrentAddress.Addr[0], PXE_HWADDR_LEN_ETHER );
> > > +          }
> > > +          if ( NULL != pProtocol ) {
> > > +            Type = *pProtocol;
> > > +          } else {
> > > +              Type = (UINT16) BufferSize;
> > > +          }
> > > +          Type = (UINT16)(( Type >> 8 ) | ( Type << 8 ));
> > > +          pHeader->type = Type;
> > > +        }
> > > +
> > > +        if ( pNicDevice->pTxTest->TxHdr1 < MIN_ETHERNET_PKT_SIZE ) {
> > > +          pNicDevice->pTxTest->TxHdr1 = MIN_ETHERNET_PKT_SIZE;
> > > +          ZeroMem ( &pNicDevice->pTxTest->Data[BufferSize],
> > > +                    MIN_ETHERNET_PKT_SIZE - BufferSize );
> > > +        }
> > > +
> > > +        TransferLength = sizeof ( pNicDevice->pTxTest->TxHdr1 )
> > > +                       + sizeof ( pNicDevice->pTxTest->TxHdr2 )
> > > +                       + pNicDevice->pTxTest->TxHdr1;
> > > +        //
> > > +        //  Work around USB bus driver bug where a timeout set by receive
> > > +        //  succeeds but the timeout expires immediately after, causing the
> > > +        //  transmit operation to timeout.
> > > +        //
> > > +        pUsbIo = pNicDevice->pUsbIo;
> > > +        Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
> > > +                                           BULK_OUT_ENDPOINT,
> > > +                                           &pNicDevice->pTxTest->TxHdr1,
> > > +                                           &TransferLength,
> > > +                                           0xfffffffe,
> > > +                                           &TransferStatus );
> > > +
> > > +        if (!EFI_ERROR(Status) && !EFI_ERROR(Status)) {
> > > +              pNicDevice->pTxBuffer = pBuffer;
> > > +              Status = EFI_SUCCESS;
> > > +        } else if (EFI_TIMEOUT == Status && EFI_USB_ERR_TIMEOUT ==
> > TransferStatus) {
> > > +              Status = EFI_NOT_READY;
> > > +        } else {
> > > +              Status = EFI_DEVICE_ERROR;
> > > +        }
> > > +      } else {
> > > +        //
> > > +        // No packets available.
> > > +        //
> > > +        Status = EFI_NOT_READY;
> > > +      }
> > > +    } else {
> > > +      if (EfiSimpleNetworkStarted == pMode->State) {
> > > +          Status = EFI_DEVICE_ERROR; ;
> > > +      } else {
> > > +          Status = EFI_NOT_STARTED ;
> > > +      }
> > > +    }
> > > +  } else {
> > > +    Status = EFI_INVALID_PARAMETER;
> > > +  }
> > > +EXIT:
> > > +  gBS->RestoreTPL (TplPrevious);
> > > +  return Status;
> > > +}
> > > --
> > > 2.17.1
> 
> IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you
> are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person,
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> 
> 


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2020-05-08  0:53 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-05-07  3:37 [edk2-platform][PATCH v1 0/2] Update ASIX USB Networking drivers Samer El-Haj-Mahmoud
2020-05-07  3:37 ` [edk2-platform][PATCH v1 1/2] OptionRomPkg: UsbNetworking: ASIX Ax88179 driver Samer El-Haj-Mahmoud
2020-05-07  5:22   ` Ni, Ray
2020-05-07 16:20     ` Samer El-Haj-Mahmoud
2020-05-08  0:53       ` [edk2-devel] " Ni, Ray
2020-05-07  3:37 ` [edk2-platform][PATCH v1 2/2] Drivers/OptionRomPkg: UsbNetworking: ASIX Ax88772c driver v2.8.0 Samer El-Haj-Mahmoud

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