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From: "Xianglei Cai" <xianglei.cai@intel.com>
To: "devel@edk2.groups.io" <devel@edk2.groups.io>,
	"Cai, Xianglei" <xianglei.cai@intel.com>
Cc: "Wu, Hao A" <hao.a.wu@intel.com>, "Ni, Ray" <ray.ni@intel.com>,
	"Wang, Jian J" <jian.j.wang@intel.com>,
	"Gao, Liming" <gaoliming@byosoft.com.cn>,
	"Shih, More" <more.shih@intel.com>
Subject: Re: [edk2-devel] [PATCH 1/1] MdeModulePkg\XhciDxe: Command Abort when times out
Date: Wed, 20 Sep 2023 03:07:10 +0000	[thread overview]
Message-ID: <MN0PR11MB60348F9F9922A54095FFC73293F9A@MN0PR11MB6034.namprd11.prod.outlook.com> (raw)
In-Reply-To: <1786073BDD30B479.9824@groups.io>

Hi All,

Could you please help review this patch. Very appreciated!

Thanks,
Xianglei

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Xianglei Cai
Sent: Monday, September 18, 2023 2:57 PM
To: devel@edk2.groups.io
Cc: Cai, Xianglei <xianglei.cai@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Ni, Ray <ray.ni@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Shih, More <more.shih@intel.com>
Subject: [edk2-devel] [PATCH 1/1] MdeModulePkg\XhciDxe: Command Abort when times out

https://bugzilla.tianocore.org/show_bug.cgi?id=4552

CC: Hao A Wu     <hao.a.wu@intel.com>
CC: Ray Ni       <ray.ni@intel.com>
CC: Jian J Wang  <jian.j.wang@intel.com>
CC: Liming Gao   <gaoliming@byosoft.com.cn>
CC: More Shih    <more.shih@intel.com>
Signed-off-by: Xianglei Cai <xianglei.cai@intel.com>
---
 MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 35 ++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index 53421e64a850..5024d5e3acb9 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -2121,6 +2121,29 @@ RingIntTransferDoorBell (
   return EFI_SUCCESS;
 }
 
+/**
+  Set Command abort
+
+  @param  Xhc           The XHCI Instance.
+  @param  SlotId        The slot id to be disabled.
+
+  @retval EFI_SUCCESS   Successfully disable the device slot.
+
+**/
+VOID
+XhcCmdRingCmdAbort (
+  IN USB_XHCI_INSTANCE  *Xhc,
+  IN UINT8              SlotId
+  )
+{
+  //
+  // Some 3rd party XHCI external cards don't support single 64-bytes 
+width register access,
+  // So divide it to two 32-bytes width register access.
+  //
+  DEBUG ((DEBUG_INFO, "Command Ring Control set Command Abort, SlotId: 
+%d!\n", SlotId));
+  XhcSetOpRegBit (Xhc, XHC_CRCR_OFFSET, XHC_CRCR_CA); }
+
 /**
   Assign and initialize the device slot for a new device.
 
@@ -2331,6 +2354,12 @@ XhcInitializeDeviceSlot (
     Xhc->UsbDevContext[SlotId].XhciDevAddr = DeviceAddress;
   } else {
     DEBUG ((DEBUG_ERROR, "    Slot %d address not assigned successfully. Status = %r\n", SlotId, Status));
+    //
+    // Software need abort the command if a command times out in xHCI spec 4.6.
+    //
+    if (Status == EFI_TIMEOUT) {
+      XhcCmdRingCmdAbort (Xhc, SlotId);
+    }
     XhcDisableSlotCmd (Xhc, SlotId);
   }
 
@@ -2547,6 +2576,12 @@ XhcInitializeDeviceSlot64 (
     Xhc->UsbDevContext[SlotId].XhciDevAddr = DeviceAddress;
   } else {
     DEBUG ((DEBUG_ERROR, "    Slot %d address not assigned successfully. Status = %r\n", SlotId, Status));
+    //
+    // Software need abort the command if a command times out in xHCI spec 4.6.
+    //
+    if (Status == EFI_TIMEOUT) {
+      XhcCmdRingCmdAbort (Xhc, SlotId);
+    }
     XhcDisableSlotCmd64 (Xhc, SlotId);
   }
 
--
2.42.0.windows.2








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      parent reply	other threads:[~2023-09-20  3:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1695020158.git.xianglei.cai@intel.com>
2023-09-18  6:56 ` [edk2-devel] [PATCH 1/1] MdeModulePkg\XhciDxe: Command Abort when times out Xianglei Cai
2023-09-20  8:19   ` Wu, Hao A
     [not found] ` <1786073BDD30B479.9824@groups.io>
2023-09-20  3:07   ` Xianglei Cai [this message]

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