1. devel@edk2.groups.io

Re: [Patch V2] MdeModulePkg/XhciDxe: Error handle for USB slot initialization failure

Wu, Hao A
 

Sorry for top-posting. Seems my mail agent application does not display the patch content properly.

For the patch, Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
I will remove the extra space character added before the 'else' statement in function XhcInitializeDeviceSlot64() when merging the patch.

I will wait a couple of days to see if there are other comments before pushing.
Heng, could you please help ping me if I forgot to merge the patch in a week's time? Thanks in advance.

Best Regards,
Hao Wu

-----Original Message-----
From: Luo, Heng <heng.luo@intel.com>
Sent: Tuesday, October 20, 2020 11:16 AM
To: devel@edk2.groups.io
Cc: Ni, Ray <ray.ni@intel.com>; Wu, Hao A <hao.a.wu@intel.com>
Subject: [Patch V2] MdeModulePkg/XhciDxe: Error handle for USB slot
initialization failure

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3007

Currently UsbDevContext is not cleaned up if USB slot initialization is failed,
the wrong context data will affect next USB devices and the USB devices can
not be enumerated.
Need to disable slot if USB slot initialization is failed.

Below test cases are passed on UpXtreme:
a. USB 3.0 thumb drives can be recognized in UEFI shell b. SUT can boot to
Puppylinux from USB3.0 mass storage, the storage can be recognized in
linux c. Plug in a USB keyboard (hot plug) and enumeration is OK in UEFI
shell and linux d. Plug in a USB mouse(hot plug) and enumeration is OK in
linux.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Heng Luo <heng.luo@intel.com>
---
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index 9cb115363c..55f207aec4 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -2,7 +2,7 @@
XHCI transfer scheduling routines. -Copyright (c) 2011 - 2018, Intel
Corporation. All rights reserved.<BR>+Copyright (c) 2011 - 2020, Intel
Corporation. All rights reserved.<BR> Copyright (c) Microsoft
Corporation.<BR> SPDX-License-Identifier: BSD-2-Clause-Patent @@ -2279,6
+2279,9 @@ XhcInitializeDeviceSlot (
DeviceAddress = (UINT8) ((DEVICE_CONTEXT *) OutputContext)-
Slot.DeviceAddress; DEBUG ((EFI_D_INFO, " Address %d assigned
successfully\n", DeviceAddress)); Xhc-
UsbDevContext[SlotId].XhciDevAddr = DeviceAddress;+ } else {+ DEBUG
((DEBUG_INFO, " Address %d assigned unsuccessfully\n"));+ Status =
XhcDisableSlotCmd (Xhc, SlotId); } return Status;@@ -2489,7 +2492,11 @@
XhcInitializeDeviceSlot64 (
DeviceAddress = (UINT8) ((DEVICE_CONTEXT_64 *) OutputContext)-
Slot.DeviceAddress; DEBUG ((EFI_D_INFO, " Address %d assigned
successfully\n", DeviceAddress)); Xhc-
UsbDevContext[SlotId].XhciDevAddr = DeviceAddress;+ } else {+ DEBUG
((DEBUG_INFO, " Address %d assigned unsuccessfully\n"));+ Status =
XhcDisableSlotCmd (Xhc, SlotId); }+ return Status; } --
2.24.0.windows.2
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