[Patch 1/4] MdePkg/DevicePath.h: Add DNS Device Path definition

[Jiaxin Wu <jiaxin.wu@intel.com>]

This patch adds the DNS device path node definition.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
---
 MdePkg/Include/Protocol/DevicePath.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/MdePkg/Include/Protocol/DevicePath.h b/MdePkg/Include/Protocol/DevicePath.h
index 220fa90..fb8ab56 100644
--- a/MdePkg/Include/Protocol/DevicePath.h
+++ b/MdePkg/Include/Protocol/DevicePath.h
@@ -816,10 +816,26 @@ typedef struct {
   UINT32                          NamespaceId;
   UINT64                          NamespaceUuid;
 } NVME_NAMESPACE_DEVICE_PATH;
 
 ///
+/// DNS Device Path SubType
+///
+#define MSG_DNS_DP                0x1F
+typedef struct {
+  EFI_DEVICE_PATH_PROTOCOL        Header;
+  ///
+  /// Indicates the DNS server address is IPv4 or IPv6 address.
+  ///
+  UINT8                           IsIPv6;
+  ///
+  /// Instance of the DNS server address.
+  ///
+  EFI_IP_ADDRESS                  DnsServerIp[];
+} DNS_DEVICE_PATH;
+
+///
 /// Uniform Resource Identifiers (URI) Device Path SubType
 ///
 #define MSG_URI_DP                0x18
 typedef struct {
   EFI_DEVICE_PATH_PROTOCOL        Header;
@@ -1250,10 +1266,11 @@ typedef union {
   UART_DEVICE_PATH                           Uart;
   UART_FLOW_CONTROL_DEVICE_PATH              UartFlowControl;
   SAS_DEVICE_PATH                            Sas;
   SASEX_DEVICE_PATH                          SasEx;
   NVME_NAMESPACE_DEVICE_PATH                 NvmeNamespace;
+  DNS_DEVICE_PATH                            Dns; 
   URI_DEVICE_PATH                            Uri;
   BLUETOOTH_DEVICE_PATH                      Bluetooth;
   WIFI_DEVICE_PATH                           WiFi;
   UFS_DEVICE_PATH                            Ufs;
   SD_DEVICE_PATH                             Sd;
@@ -1307,10 +1324,11 @@ typedef union {
   UART_DEVICE_PATH                           *Uart;
   UART_FLOW_CONTROL_DEVICE_PATH              *UartFlowControl;
   SAS_DEVICE_PATH                            *Sas;
   SASEX_DEVICE_PATH                          *SasEx;
   NVME_NAMESPACE_DEVICE_PATH                 *NvmeNamespace;
+  DNS_DEVICE_PATH                            *Dns;
   URI_DEVICE_PATH                            *Uri;
   BLUETOOTH_DEVICE_PATH                      *Bluetooth;
   WIFI_DEVICE_PATH                           *WiFi;
   UFS_DEVICE_PATH                            *Ufs;
   SD_DEVICE_PATH                             *Sd;
-- 
1.9.5.msysgit.1