[edk2-devel] [PATCH v2] MdeModulePkg/ScsiDiskDxe: Update proper device name for ScsiDisk drive
Wu, Hao A
hao.a.wu at intel.com
Fri Oct 28 02:25:45 UTC 2022
Thanks.
Reviewed-by: Hao A Wu <hao.a.wu at intel.com>
Will wait a couple of days before merging to see if comments from other reviewers.
Best Regards,
Hao Wu
> -----Original Message-----
> From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Cheripally
> Gopi via groups.io
> Sent: Thursday, October 27, 2022 3:07 PM
> To: devel at edk2.groups.io
> Cc: Selvaraj, Sundaresan <sundaresans at ami.com>; Sambandan, Vasudevan
> <vasudevans at ami.com>; Cheripally Gopi <gopic at ami.com>
> Subject: [edk2-devel] [PATCH v2] MdeModulePkg/ScsiDiskDxe: Update proper
> device name for ScsiDisk drive
>
> ScsiDiskDxe driver updates ControllerNameTable with common string
> "SCSI Disk Device" for all SCSI disks. Due to this, when multiple
> SCSI disk devices connected, facing difficulty in identifying correct SCSI
> disk device. As per SCSI spec, standard Inquiry Data is having the fields
> to know Vendor and Product information. Updated "ControllerNameTable" with
> Vendor and Product information. So that, device specific name can be
> retrieved using ComponentName protocol.
>
> Cc: Vasudevan Sambandan <vasudevans at ami.com>
> Cc: Sundaresan Selvaraj <sundaresans at ami.com>
> Signed-off-by: Cheripally Gopi <gopic at ami.com>
> ---
> MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c | 53 ++++++++++++++++++-
> MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.h | 9 ++++
> .../Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe.inf | 2 +
> 3 files changed, 62 insertions(+), 2 deletions(-)
>
> diff --git a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
> b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
> index 98e84b4ea8..0928605dc4 100644
> --- a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
> +++ b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
> @@ -2,6 +2,7 @@
> SCSI disk driver that layers on every SCSI IO protocol in the system.
>
>
>
> Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
>
> +Copyright (c) 1985 - 2022, American Megatrends International LLC.<BR>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
>
> **/
>
> @@ -67,6 +68,33 @@ FreeAlignedBuffer (
> }
>
> }
>
>
>
> +/**
>
> + Remove trailing spaces from the string.
>
> +
>
> + @param String The ASCII string to remove the trailing spaces.
>
> +
>
> + @retval the new length of the string.
>
> +**/
>
> +UINTN
>
> +RemoveTrailingSpaces (
>
> + IN OUT CHAR8 *String
>
> + )
>
> +{
>
> + UINTN Length;
>
> +
>
> + Length = AsciiStrLen (String);
>
> + if (Length == 0) {
>
> + return 0;
>
> + }
>
> +
>
> + while ((Length > 0) && (String[Length-1] == ' ')) {
>
> + Length--;
>
> + }
>
> +
>
> + String[Length] = '\0';
>
> + return Length;
>
> +}
>
> +
>
> /**
>
> The user Entry Point for module ScsiDisk.
>
>
>
> @@ -203,6 +231,9 @@ ScsiDiskDriverBindingStart (
> UINT8 MaxRetry;
>
> BOOLEAN NeedRetry;
>
> BOOLEAN MustReadCapacity;
>
> + CHAR8 VendorStr[VENDOR_IDENTIFICATION_LENGTH + 1];
>
> + CHAR8 ProductStr[PRODUCT_IDENTIFICATION_LENGTH + 1];
>
> + CHAR16 DeviceStr[VENDOR_IDENTIFICATION_LENGTH +
> PRODUCT_IDENTIFICATION_LENGTH + 2];
>
>
>
> MustReadCapacity = TRUE;
>
>
>
> @@ -354,19 +385,37 @@ ScsiDiskDriverBindingStart (
> }
>
> }
>
>
>
> + CopyMem (
>
> + VendorStr,
>
> + &ScsiDiskDevice-
> >InquiryData.Reserved_5_95[VENDOR_IDENTIFICATION_OFFSET],
>
> + VENDOR_IDENTIFICATION_LENGTH
>
> + );
>
> + VendorStr[VENDOR_IDENTIFICATION_LENGTH] = 0;
>
> + RemoveTrailingSpaces (VendorStr);
>
> +
>
> + CopyMem (
>
> + ProductStr,
>
> + &ScsiDiskDevice-
> >InquiryData.Reserved_5_95[PRODUCT_IDENTIFICATION_OFFSET],
>
> + PRODUCT_IDENTIFICATION_LENGTH
>
> + );
>
> + ProductStr[PRODUCT_IDENTIFICATION_LENGTH] = 0;
>
> + RemoveTrailingSpaces (ProductStr);
>
> +
>
> + UnicodeSPrint (DeviceStr, sizeof (DeviceStr), L"%a %a", VendorStr,
> ProductStr);
>
> +
>
> ScsiDiskDevice->ControllerNameTable = NULL;
>
> AddUnicodeString2 (
>
> "eng",
>
> gScsiDiskComponentName.SupportedLanguages,
>
> &ScsiDiskDevice->ControllerNameTable,
>
> - L"SCSI Disk Device",
>
> + DeviceStr,
>
> TRUE
>
> );
>
> AddUnicodeString2 (
>
> "en",
>
> gScsiDiskComponentName2.SupportedLanguages,
>
> &ScsiDiskDevice->ControllerNameTable,
>
> - L"SCSI Disk Device",
>
> + DeviceStr,
>
> FALSE
>
> );
>
> return EFI_SUCCESS;
>
> diff --git a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.h
> b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.h
> index d54282df5f..5b4047e1db 100644
> --- a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.h
> +++ b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.h
> @@ -2,6 +2,7 @@
> Header file for SCSI Disk Driver.
>
>
>
> Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>
>
> +Copyright (c) 1985 - 2022, American Megatrends International LLC.<BR>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
>
> **/
>
> @@ -30,6 +31,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
> #include <Library/UefiScsiLib.h>
>
> #include <Library/UefiBootServicesTableLib.h>
>
> #include <Library/DevicePathLib.h>
>
> +#include <Library/PrintLib.h>
>
>
>
> #include <IndustryStandard/Scsi.h>
>
> #include <IndustryStandard/Atapi.h>
>
> @@ -179,6 +181,13 @@ extern EFI_COMPONENT_NAME2_PROTOCOL
> gScsiDiskComponentName2;
> #define SCSI_COMMAND_VERSION_2 0x02
>
> #define SCSI_COMMAND_VERSION_3 0x03
>
>
>
> +// Per SCSI spec, EFI_SCSI_INQUIRY_DATA.Reserved_5_95[3 - 10] has the
> Vendor identification
>
> +// EFI_SCSI_INQUIRY_DATA.Reserved_5_95[11 - 26] has the product
> identification
>
> +#define VENDOR_IDENTIFICATION_OFFSET 3
>
> +#define VENDOR_IDENTIFICATION_LENGTH 8
>
> +#define PRODUCT_IDENTIFICATION_OFFSET 11
>
> +#define PRODUCT_IDENTIFICATION_LENGTH 16
>
> +
>
> //
>
> // SCSI Disk Timeout Experience Value
>
> //
>
> diff --git a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe.inf
> b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe.inf
> index 40818e669b..26227132e8 100644
> --- a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe.inf
> +++ b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe.inf
> @@ -4,6 +4,7 @@
> # the device handle.
>
> #
>
> # Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
>
> +# Copyright (c) 1985 - 2022, American Megatrends International LLC.<BR>
>
> # SPDX-License-Identifier: BSD-2-Clause-Patent
>
> #
>
> ##
>
> @@ -46,6 +47,7 @@
> UefiDriverEntryPoint
>
> DebugLib
>
> DevicePathLib
>
> + PrintLib
>
>
>
> [Protocols]
>
> gEfiDiskInfoProtocolGuid ## BY_START
>
> --
> 2.33.0.windows.2
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>
>
>
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