123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172 |
- /** @file
- Internal definitions for the PVSCSI driver, which produces Extended SCSI
- Pass Thru Protocol instances for pvscsi devices.
- Copyright (C) 2020, Oracle and/or its affiliates.
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef __PVSCSI_DXE_H_
- #define __PVSCSI_DXE_H_
- #include <Library/DebugLib.h>
- #include <Protocol/ScsiPassThruExt.h>
- typedef struct {
- EFI_PHYSICAL_ADDRESS DeviceAddress;
- VOID *Mapping;
- } PVSCSI_DMA_DESC;
- typedef struct {
- PVSCSI_RINGS_STATE *RingState;
- PVSCSI_DMA_DESC RingStateDmaDesc;
- PVSCSI_RING_REQ_DESC *RingReqs;
- PVSCSI_DMA_DESC RingReqsDmaDesc;
- PVSCSI_RING_CMP_DESC *RingCmps;
- PVSCSI_DMA_DESC RingCmpsDmaDesc;
- } PVSCSI_RING_DESC;
- typedef struct {
- //
- // As EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET.SenseDataLength is defined
- // as UINT8, defining here SenseData size to MAX_UINT8 will guarantee it
- // cannot overflow when passed to device.
- //
- UINT8 SenseData[MAX_UINT8];
- //
- // This size of the data is arbitrarily chosen.
- // It seems to be sufficient for all I/O requests sent through
- // EFI_SCSI_PASS_THRU_PROTOCOL.PassThru() for common boot scenarios.
- //
- UINT8 Data[0x2000];
- } PVSCSI_DMA_BUFFER;
- #define PVSCSI_SIG SIGNATURE_32 ('P', 'S', 'C', 'S')
- typedef struct {
- UINT32 Signature;
- EFI_PCI_IO_PROTOCOL *PciIo;
- EFI_EVENT ExitBoot;
- UINT64 OriginalPciAttributes;
- PVSCSI_RING_DESC RingDesc;
- PVSCSI_DMA_BUFFER *DmaBuf;
- PVSCSI_DMA_DESC DmaBufDmaDesc;
- UINT8 MaxTarget;
- UINT8 MaxLun;
- UINTN WaitForCmpStallInUsecs;
- EFI_EXT_SCSI_PASS_THRU_PROTOCOL PassThru;
- EFI_EXT_SCSI_PASS_THRU_MODE PassThruMode;
- } PVSCSI_DEV;
- #define PVSCSI_FROM_PASS_THRU(PassThruPointer) \
- CR (PassThruPointer, PVSCSI_DEV, PassThru, PVSCSI_SIG)
- #define PVSCSI_DMA_BUF_DEV_ADDR(Dev, MemberName) \
- (Dev->DmaBufDmaDesc.DeviceAddress + OFFSET_OF(PVSCSI_DMA_BUFFER, MemberName))
- #endif // __PVSCSI_DXE_H_
|