[edk2-devel] [PATCH] MdeModulePkg/Bus/Pci/XhciDxe: Reset the port if status change returns an error

[Wu, Hao A]

Sorry,

The CI tests failed for the proposed patch:
https://github.com/tianocore/edk2/pull/3824

Could you help to check and resolve? Thanks.

Best Regards,
Hao Wu

> -----Original Message-----
> From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Sean
> Rhodes
> Sent: Wednesday, December 21, 2022 4:15 PM
> To: devel at edk2.groups.io
> Cc: Rhodes, Sean <sean at starlabs.systems>
> Subject: [edk2-devel] [PATCH] MdeModulePkg/Bus/Pci/XhciDxe: Reset the
> port if status change returns an error
> 
> Force resetting the port by clearing the USB_PORT_STAT_C_RESET bit in
> PortChangeStatus
> when XhcPollPortStatusChange fails
> 
> Signed-off-by: Sean Rhodes <sean at starlabs.systems>
> ---
>  MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c
> b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c
> index 461b2cd9b5..d8fa41f68f 100644
> --- a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c
> +++ b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c
> @@ -471,7 +471,16 @@ XhcGetRootHubPortStatus (
>    // For those devices behind hub, we get its attach/detach event by hooking
> Get_Port_Status request at control transfer for those hub.
> 
>    //
> 
>    ParentRouteChart.Dword = 0;
> 
> -  XhcPollPortStatusChange (Xhc, ParentRouteChart, PortNumber, PortStatus);
> 
> +  Status                 = XhcPollPortStatusChange (Xhc, ParentRouteChart,
> PortNumber, PortStatus);
> 
> +
> 
> +  //
> 
> +  // Force resetting the port by clearing the USB_PORT_STAT_C_RESET bit in
> PortChangeStatus
> 
> +  // when XhcPollPortStatusChange fails
> 
> +  //
> 
> +  if (EFI_ERROR (Status)) {
> 
> +    PortStatus->PortChangeStatus &= ~(USB_PORT_STAT_C_RESET);
> 
> +    Status                        = EFI_SUCCESS;
> 
> +  }
> 
> 
> 
>  ON_EXIT:
> 
>    gBS->RestoreTPL (OldTpl);
> 
> --
> 2.37.2
> 
> 
> 
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