| /** @file | |
| Virtio SCSI Host Device specific type and macro definitions corresponding to | |
| the virtio-0.9.5 specification. | |
| Copyright (C) 2012, Red Hat, Inc. | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #ifndef _VIRTIO_SCSI_H_ | |
| #define _VIRTIO_SCSI_H_ | |
| #include <IndustryStandard/Virtio.h> | |
| // | |
| // virtio-0.9.5, Appendix I: SCSI Host Device | |
| // | |
| #pragma pack(1) | |
| typedef struct { | |
| UINT32 NumQueues; | |
| UINT32 SegMax; | |
| UINT32 MaxSectors; | |
| UINT32 CmdPerLun; | |
| UINT32 EventInfoSize; | |
| UINT32 SenseSize; | |
| UINT32 CdbSize; | |
| UINT16 MaxChannel; | |
| UINT16 MaxTarget; | |
| UINT32 MaxLun; | |
| } VIRTIO_SCSI_CONFIG; | |
| #pragma pack() | |
| #define OFFSET_OF_VSCSI(Field) OFFSET_OF (VIRTIO_SCSI_CONFIG, Field) | |
| #define SIZE_OF_VSCSI(Field) (sizeof ((VIRTIO_SCSI_CONFIG *) 0)->Field) | |
| #define VIRTIO_SCSI_F_INOUT BIT0 | |
| #define VIRTIO_SCSI_F_HOTPLUG BIT1 | |
| // | |
| // We expect these maximum sizes from the host. Also we force the CdbLength and | |
| // SenseDataLength parameters of EFI_EXT_SCSI_PASS_THRU_PROTOCOL.PassThru() not | |
| // to exceed these limits. See UEFI 2.3.1 errata C 14.7. | |
| // | |
| #define VIRTIO_SCSI_CDB_SIZE 32 | |
| #define VIRTIO_SCSI_SENSE_SIZE 96 | |
| // | |
| // We pass the dynamically sized buffers ("dataout", "datain") in separate ring | |
| // descriptors. | |
| // | |
| #pragma pack(1) | |
| typedef struct { | |
| UINT8 Lun[8]; | |
| UINT64 Id; | |
| UINT8 TaskAttr; | |
| UINT8 Prio; | |
| UINT8 Crn; | |
| UINT8 Cdb[VIRTIO_SCSI_CDB_SIZE]; | |
| } VIRTIO_SCSI_REQ; | |
| typedef struct { | |
| UINT32 SenseLen; | |
| UINT32 Residual; | |
| UINT16 StatusQualifier; | |
| UINT8 Status; | |
| UINT8 Response; | |
| UINT8 Sense[VIRTIO_SCSI_SENSE_SIZE]; | |
| } VIRTIO_SCSI_RESP; | |
| #pragma pack() | |
| // | |
| // selector of first virtio queue usable for request transfer | |
| // | |
| #define VIRTIO_SCSI_REQUEST_QUEUE 2 | |
| // | |
| // host response codes | |
| // | |
| #define VIRTIO_SCSI_S_OK 0 | |
| #define VIRTIO_SCSI_S_OVERRUN 1 | |
| #define VIRTIO_SCSI_S_ABORTED 2 | |
| #define VIRTIO_SCSI_S_BAD_TARGET 3 | |
| #define VIRTIO_SCSI_S_RESET 4 | |
| #define VIRTIO_SCSI_S_BUSY 5 | |
| #define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6 | |
| #define VIRTIO_SCSI_S_TARGET_FAILURE 7 | |
| #define VIRTIO_SCSI_S_NEXUS_FAILURE 8 | |
| #define VIRTIO_SCSI_S_FAILURE 9 | |
| #endif // _VIRTIO_SCSI_H_ |