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1 | /** @file\r |
| 2 | \r |
| 3 | Virtio SCSI Host Device specific type and macro definitions corresponding to\r |
| 4 | the virtio-0.9.5 specification.\r |
| 5 | \r |
| 6 | Copyright (C) 2012, Red Hat, Inc.\r |
| 7 | \r |
| 8 | This program and the accompanying materials are licensed and made available\r |
| 9 | under the terms and conditions of the BSD License which accompanies this\r |
| 10 | distribution. The full text of the license may be found at\r |
| 11 | http://opensource.org/licenses/bsd-license.php\r |
| 12 | \r |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r |
| 14 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 15 | \r |
| 16 | **/\r |
| 17 | \r |
| 18 | #ifndef _VIRTIO_SCSI_H_\r |
| 19 | #define _VIRTIO_SCSI_H_\r |
| 20 | \r |
| 21 | #include <IndustryStandard/Virtio.h>\r |
| 22 | \r |
| 23 | \r |
| 24 | //\r |
| 25 | // virtio-0.9.5, Appendix I: SCSI Host Device\r |
| 26 | //\r |
| 27 | #pragma pack(1)\r |
| 28 | typedef struct {\r |
| 29 | VIRTIO_HDR Generic;\r |
| 30 | UINT32 VhdrNumQueues;\r |
| 31 | UINT32 VhdrSegMax;\r |
| 32 | UINT32 VhdrMaxSectors;\r |
| 33 | UINT32 VhdrCmdPerLun;\r |
| 34 | UINT32 VhdrEventInfoSize;\r |
| 35 | UINT32 VhdrSenseSize;\r |
| 36 | UINT32 VhdrCdbSize;\r |
| 37 | UINT16 VhdrMaxChannel;\r |
| 38 | UINT16 VhdrMaxTarget;\r |
| 39 | UINT32 VhdrMaxLun;\r |
| 40 | } VSCSI_HDR;\r |
| 41 | #pragma pack()\r |
| 42 | \r |
| 43 | #define OFFSET_OF_VSCSI(Field) OFFSET_OF (VSCSI_HDR, Field)\r |
| 44 | #define SIZE_OF_VSCSI(Field) (sizeof ((VSCSI_HDR *) 0)->Field)\r |
| 45 | \r |
| 46 | #define VIRTIO_SCSI_F_INOUT BIT0\r |
| 47 | #define VIRTIO_SCSI_F_HOTPLUG BIT1\r |
| 48 | \r |
| 49 | //\r |
| 50 | // We expect these maximum sizes from the host. Also we force the CdbLength and\r |
| 51 | // SenseDataLength parameters of EFI_EXT_SCSI_PASS_THRU_PROTOCOL.PassThru() not\r |
| 52 | // to exceed these limits. See UEFI 2.3.1 errata C 14.7.\r |
| 53 | //\r |
| 54 | #define VIRTIO_SCSI_CDB_SIZE 32\r |
| 55 | #define VIRTIO_SCSI_SENSE_SIZE 96\r |
| 56 | \r |
| 57 | //\r |
| 58 | // We pass the dynamically sized buffers ("dataout", "datain") in separate ring\r |
| 59 | // descriptors.\r |
| 60 | //\r |
| 61 | #pragma pack(1)\r |
| 62 | typedef struct {\r |
| 63 | UINT8 Lun[8];\r |
| 64 | UINT64 Id;\r |
| 65 | UINT8 TaskAttr;\r |
| 66 | UINT8 Prio;\r |
| 67 | UINT8 Crn;\r |
| 68 | UINT8 Cdb[VIRTIO_SCSI_CDB_SIZE];\r |
| 69 | } VIRTIO_SCSI_REQ;\r |
| 70 | \r |
| 71 | typedef struct {\r |
| 72 | UINT32 SenseLen;\r |
| 73 | UINT32 Residual;\r |
| 74 | UINT16 StatusQualifier;\r |
| 75 | UINT8 Status;\r |
| 76 | UINT8 Response;\r |
| 77 | UINT8 Sense[VIRTIO_SCSI_SENSE_SIZE];\r |
| 78 | } VIRTIO_SCSI_RESP;\r |
| 79 | #pragma pack()\r |
| 80 | \r |
| 81 | //\r |
| 82 | // selector of first virtio queue usable for request transfer\r |
| 83 | //\r |
| 84 | #define VIRTIO_SCSI_REQUEST_QUEUE 2\r |
| 85 | \r |
| 86 | //\r |
| 87 | // host response codes\r |
| 88 | //\r |
| 89 | #define VIRTIO_SCSI_S_OK 0\r |
| 90 | #define VIRTIO_SCSI_S_OVERRUN 1\r |
| 91 | #define VIRTIO_SCSI_S_ABORTED 2\r |
| 92 | #define VIRTIO_SCSI_S_BAD_TARGET 3\r |
| 93 | #define VIRTIO_SCSI_S_RESET 4\r |
| 94 | #define VIRTIO_SCSI_S_BUSY 5\r |
| 95 | #define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6\r |
| 96 | #define VIRTIO_SCSI_S_TARGET_FAILURE 7\r |
| 97 | #define VIRTIO_SCSI_S_NEXUS_FAILURE 8\r |
| 98 | #define VIRTIO_SCSI_S_FAILURE 9\r |
| 99 | \r |
| 100 | #endif // _VIRTIO_SCSI_H_\r |
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