On 07/01/20 06:04, Gary Lin wrote:
> Implement LsiScsiControllerSupported() to probe the PCI ID and look for
> LSI 53C895A.
>
> Cc: Jordan Justen <jordan.l.jus...@intel.com>
> Cc: Laszlo Ersek <ler...@redhat.com>
> Cc: Ard Biesheuvel <ard.biesheu...@arm.com>
> Signed-off-by: Gary Lin <g...@suse.com>
> ---
> OvmfPkg/Include/IndustryStandard/LsiScsi.h | 20 +++++++++
> OvmfPkg/LsiScsiDxe/LsiScsi.c | 48 +++++++++++++++++++++-
> OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf | 6 +++
> 3 files changed, 73 insertions(+), 1 deletion(-)
> create mode 100644 OvmfPkg/Include/IndustryStandard/LsiScsi.h
>
> diff --git a/OvmfPkg/Include/IndustryStandard/LsiScsi.h
> b/OvmfPkg/Include/IndustryStandard/LsiScsi.h
> new file mode 100644
> index 000000000000..c09e864a1f39
> --- /dev/null
> +++ b/OvmfPkg/Include/IndustryStandard/LsiScsi.h
> @@ -0,0 +1,20 @@
> +/** @file
> +
> + Macros and type definitions for LSI 53C895A SCSI devices.
> +
> + Copyright (C) 2020, SUSE LLC.
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#ifndef _LSI_SCSI_H_
> +#define _LSI_SCSI_H_
> +
> +//
> +// Device ID
> +//
> +#define LSI_LOGIC_PCI_VENDOR_ID 0x1000
> +#define LSI_53C895A_PCI_DEVICE_ID 0x0012
> +
> +#endif // _LSI_SCSI_H_
> diff --git a/OvmfPkg/LsiScsiDxe/LsiScsi.c b/OvmfPkg/LsiScsiDxe/LsiScsi.c
> index 62daa3ab99bf..5bca85bd75eb 100644
> --- a/OvmfPkg/LsiScsiDxe/LsiScsi.c
> +++ b/OvmfPkg/LsiScsiDxe/LsiScsi.c
> @@ -9,7 +9,12 @@
>
> **/
>
> +#include <IndustryStandard/LsiScsi.h>
> +#include <IndustryStandard/Pci.h>
> +#include <Library/UefiBootServicesTableLib.h>
> #include <Library/UefiLib.h>
> +#include <Protocol/PciIo.h>
> +#include <Protocol/PciRootBridgeIo.h>
> #include <Uefi/UefiSpec.h>
>
> #include "LsiScsi.h"
> @@ -31,7 +36,48 @@ LsiScsiControllerSupported (
> IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
> )
> {
> - return EFI_UNSUPPORTED;
> + EFI_STATUS Status;
> + EFI_PCI_IO_PROTOCOL *PciIo;
> + PCI_TYPE00 Pci;
> +
> + Status = gBS->OpenProtocol (
> + ControllerHandle,
> + &gEfiPciIoProtocolGuid,
> + (VOID **)&PciIo,
> + This->DriverBindingHandle,
> + ControllerHandle,
> + EFI_OPEN_PROTOCOL_BY_DRIVER
> + );
> + if (EFI_ERROR (Status)) {
> + return Status;
> + }
> +
> + Status = PciIo->Pci.Read (
> + PciIo,
> + EfiPciIoWidthUint32,
> + 0,
> + sizeof (Pci) / sizeof (UINT32),
> + &Pci
> + );
> + if (EFI_ERROR (Status)) {
> + goto Done;
> + }
> +
> + if (Pci.Hdr.VendorId == LSI_LOGIC_PCI_VENDOR_ID &&
> + Pci.Hdr.DeviceId == LSI_53C895A_PCI_DEVICE_ID) {
> + Status = EFI_SUCCESS;
> + } else {
> + Status = EFI_UNSUPPORTED;
> + }
> +
> +Done:
> + gBS->CloseProtocol (
> + ControllerHandle,
> + &gEfiPciIoProtocolGuid,
> + This->DriverBindingHandle,
> + ControllerHandle
> + );
> + return Status;
> }
>
> EFI_STATUS
> diff --git a/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf
> b/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf
> index 444ceb78e9ca..e86c626a61aa 100644
> --- a/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf
> +++ b/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf
> @@ -22,7 +22,13 @@ [Sources]
>
> [Packages]
> MdePkg/MdePkg.dec
> + OvmfPkg/OvmfPkg.dec
>
> [LibraryClasses]
> + BaseLib
> + UefiBootServicesTableLib
> UefiDriverEntryPoint
> UefiLib
> +
> +[Protocols]
> + gEfiPciIoProtocolGuid ## TO_START
>
Reviewed-by: Laszlo Ersek <ler...@redhat.com>
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