On 04/14/20 19:38, Nikita Leshenko wrote:
> Support dynamic insertion and removal of the protocol
>
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2390
> Signed-off-by: Nikita Leshenko <nikita.leshche...@oracle.com>
> Reviewed-by: Laszlo Ersek <ler...@redhat.com>
> ---
> OvmfPkg/MptScsiDxe/MptScsi.c | 181 +++++++++++++++++++++++++++++-
> OvmfPkg/MptScsiDxe/MptScsiDxe.inf | 5 +-
> 2 files changed, 183 insertions(+), 3 deletions(-)
My R-b stands, just one small request:
>
> diff --git a/OvmfPkg/MptScsiDxe/MptScsi.c b/OvmfPkg/MptScsiDxe/MptScsi.c
> index 4e2f8f2296fb..40d392c2346f 100644
> --- a/OvmfPkg/MptScsiDxe/MptScsi.c
> +++ b/OvmfPkg/MptScsiDxe/MptScsi.c
> @@ -11,9 +11,12 @@
>
> #include <IndustryStandard/FusionMptScsi.h>
> #include <IndustryStandard/Pci.h>
> +#include <Library/DebugLib.h>
> +#include <Library/MemoryAllocationLib.h>
> #include <Library/UefiBootServicesTableLib.h>
> #include <Library/UefiLib.h>
> #include <Protocol/PciIo.h>
> +#include <Protocol/ScsiPassThruExt.h>
> #include <Uefi/UefiSpec.h>
>
> //
> @@ -22,6 +25,109 @@
> //
> #define MPT_SCSI_BINDING_VERSION 0x10
>
> +//
> +// Runtime Structures
> +//
> +
> +#define MPT_SCSI_DEV_SIGNATURE SIGNATURE_32 ('M','P','T','S')
> +typedef struct {
> + UINT32 Signature;
> + EFI_EXT_SCSI_PASS_THRU_PROTOCOL PassThru;
> + EFI_EXT_SCSI_PASS_THRU_MODE PassThruMode;
> +} MPT_SCSI_DEV;
> +
> +#define MPT_SCSI_FROM_PASS_THRU(PassThruPtr) \
> + CR (PassThruPtr, MPT_SCSI_DEV, PassThru, MPT_SCSI_DEV_SIGNATURE)
> +
> +//
> +// Ext SCSI Pass Thru
> +//
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiPassThru (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
> + IN UINT8 *Target,
> + IN UINT64 Lun,
> + IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
> + IN EFI_EVENT Event OPTIONAL
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiGetNextTargetLun (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
> + IN OUT UINT8 **Target,
> + IN OUT UINT64 *Lun
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiGetNextTarget (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
> + IN OUT UINT8 **Target
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiBuildDevicePath (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
> + IN UINT8 *Target,
> + IN UINT64 Lun,
> + IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiGetTargetLun (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
> + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
> + OUT UINT8 **Target,
> + OUT UINT64 *Lun
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiResetChannel (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +MptScsiResetTargetLun (
> + IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
> + IN UINT8 *Target,
> + IN UINT64 Lun
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> //
> // Driver Binding
> //
> @@ -90,7 +196,49 @@ MptScsiControllerStart (
> IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
> )
> {
> - return EFI_UNSUPPORTED;
> + EFI_STATUS Status;
> + MPT_SCSI_DEV *Dev;
> +
> + Dev = AllocateZeroPool (sizeof (*Dev));
> + if (Dev == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + Dev->Signature = MPT_SCSI_DEV_SIGNATURE;
> +
> + //
> + // Host adapter channel, doesn't exist
> + //
> + Dev->PassThruMode.AdapterId = MAX_UINT32;
> + Dev->PassThruMode.Attributes =
> + EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL |
> + EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL;
> +
> + Dev->PassThru.Mode = &Dev->PassThruMode;
> + Dev->PassThru.PassThru = &MptScsiPassThru;
> + Dev->PassThru.GetNextTargetLun = &MptScsiGetNextTargetLun;
> + Dev->PassThru.BuildDevicePath = &MptScsiBuildDevicePath;
> + Dev->PassThru.GetTargetLun = &MptScsiGetTargetLun;
> + Dev->PassThru.ResetChannel = &MptScsiResetChannel;
> + Dev->PassThru.ResetTargetLun = &MptScsiResetTargetLun;
> + Dev->PassThru.GetNextTarget = &MptScsiGetNextTarget;
> +
> + Status = gBS->InstallProtocolInterface (
> + &ControllerHandle,
> + &gEfiExtScsiPassThruProtocolGuid,
> + EFI_NATIVE_INTERFACE,
> + &Dev->PassThru
> + );
> + if (EFI_ERROR (Status)) {
> + goto FreePool;
> + }
> +
> + return EFI_SUCCESS;
> +
> +FreePool:
> + FreePool (Dev);
> +
> + return Status;
> }
>
> STATIC
> @@ -103,7 +251,36 @@ MptScsiControllerStop (
> IN EFI_HANDLE *ChildHandleBuffer
> )
> {
> - return EFI_UNSUPPORTED;
> + EFI_STATUS Status;
> + EFI_EXT_SCSI_PASS_THRU_PROTOCOL *PassThru;
> + MPT_SCSI_DEV *Dev;
> +
> + Status = gBS->OpenProtocol (
> + ControllerHandle,
> + &gEfiExtScsiPassThruProtocolGuid,
> + (VOID **)&PassThru,
> + This->DriverBindingHandle,
> + ControllerHandle,
> + EFI_OPEN_PROTOCOL_GET_PROTOCOL // Lookup only
> + );
> + if (EFI_ERROR (Status)) {
> + return Status;
> + }
> +
> + Dev = MPT_SCSI_FROM_PASS_THRU (PassThru);
> +
> + Status = gBS->UninstallProtocolInterface (
> + ControllerHandle,
> + &gEfiExtScsiPassThruProtocolGuid,
> + &Dev->PassThru
> + );
> + if (EFI_ERROR (Status)) {
> + return Status;
> + }
> +
> + FreePool (Dev);
> +
> + return Status;
> }
>
> STATIC
> diff --git a/OvmfPkg/MptScsiDxe/MptScsiDxe.inf
> b/OvmfPkg/MptScsiDxe/MptScsiDxe.inf
> index 414b96e5a248..5bdbc63f3ac6 100644
> --- a/OvmfPkg/MptScsiDxe/MptScsiDxe.inf
> +++ b/OvmfPkg/MptScsiDxe/MptScsiDxe.inf
> @@ -24,9 +24,12 @@ [Packages]
> OvmfPkg/OvmfPkg.dec
>
> [LibraryClasses]
> + DebugLib
> + MemoryAllocationLib
> UefiBootServicesTableLib
> UefiDriverEntryPoint
> UefiLib
>
> [Protocols]
> - gEfiPciIoProtocolGuid ## TO_START
> + gEfiPciIoProtocolGuid ## TO_START
> + gEfiExtScsiPassThruProtocolGuid ## BY_START
>
(1) Please keep this section sorted as well.
Thanks
Laszlo
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