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37078a63 | 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 | |
b26f0cf9 | 8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
37078a63 | 9 | \r |
10 | **/\r | |
11 | \r | |
12 | #ifndef _VIRTIO_SCSI_H_\r | |
13 | #define _VIRTIO_SCSI_H_\r | |
14 | \r | |
15 | #include <IndustryStandard/Virtio.h>\r | |
16 | \r | |
37078a63 | 17 | //\r |
18 | // virtio-0.9.5, Appendix I: SCSI Host Device\r | |
19 | //\r | |
20 | #pragma pack(1)\r | |
21 | typedef struct {\r | |
ac0a286f MK |
22 | UINT32 NumQueues;\r |
23 | UINT32 SegMax;\r | |
24 | UINT32 MaxSectors;\r | |
25 | UINT32 CmdPerLun;\r | |
26 | UINT32 EventInfoSize;\r | |
27 | UINT32 SenseSize;\r | |
28 | UINT32 CdbSize;\r | |
29 | UINT16 MaxChannel;\r | |
30 | UINT16 MaxTarget;\r | |
31 | UINT32 MaxLun;\r | |
56f65ed8 | 32 | } VIRTIO_SCSI_CONFIG;\r |
37078a63 | 33 | #pragma pack()\r |
34 | \r | |
ac0a286f MK |
35 | #define OFFSET_OF_VSCSI(Field) OFFSET_OF (VIRTIO_SCSI_CONFIG, Field)\r |
36 | #define SIZE_OF_VSCSI(Field) (sizeof ((VIRTIO_SCSI_CONFIG *) 0)->Field)\r | |
37078a63 | 37 | \r |
ac0a286f MK |
38 | #define VIRTIO_SCSI_F_INOUT BIT0\r |
39 | #define VIRTIO_SCSI_F_HOTPLUG BIT1\r | |
37078a63 | 40 | \r |
41 | //\r | |
42 | // We expect these maximum sizes from the host. Also we force the CdbLength and\r | |
43 | // SenseDataLength parameters of EFI_EXT_SCSI_PASS_THRU_PROTOCOL.PassThru() not\r | |
44 | // to exceed these limits. See UEFI 2.3.1 errata C 14.7.\r | |
45 | //\r | |
ac0a286f MK |
46 | #define VIRTIO_SCSI_CDB_SIZE 32\r |
47 | #define VIRTIO_SCSI_SENSE_SIZE 96\r | |
37078a63 | 48 | \r |
49 | //\r | |
50 | // We pass the dynamically sized buffers ("dataout", "datain") in separate ring\r | |
51 | // descriptors.\r | |
52 | //\r | |
53 | #pragma pack(1)\r | |
54 | typedef struct {\r | |
ac0a286f MK |
55 | UINT8 Lun[8];\r |
56 | UINT64 Id;\r | |
57 | UINT8 TaskAttr;\r | |
58 | UINT8 Prio;\r | |
59 | UINT8 Crn;\r | |
60 | UINT8 Cdb[VIRTIO_SCSI_CDB_SIZE];\r | |
37078a63 | 61 | } VIRTIO_SCSI_REQ;\r |
62 | \r | |
63 | typedef struct {\r | |
ac0a286f MK |
64 | UINT32 SenseLen;\r |
65 | UINT32 Residual;\r | |
66 | UINT16 StatusQualifier;\r | |
67 | UINT8 Status;\r | |
68 | UINT8 Response;\r | |
69 | UINT8 Sense[VIRTIO_SCSI_SENSE_SIZE];\r | |
37078a63 | 70 | } VIRTIO_SCSI_RESP;\r |
71 | #pragma pack()\r | |
72 | \r | |
73 | //\r | |
74 | // selector of first virtio queue usable for request transfer\r | |
75 | //\r | |
ac0a286f | 76 | #define VIRTIO_SCSI_REQUEST_QUEUE 2\r |
37078a63 | 77 | \r |
78 | //\r | |
79 | // host response codes\r | |
80 | //\r | |
ac0a286f MK |
81 | #define VIRTIO_SCSI_S_OK 0\r |
82 | #define VIRTIO_SCSI_S_OVERRUN 1\r | |
83 | #define VIRTIO_SCSI_S_ABORTED 2\r | |
84 | #define VIRTIO_SCSI_S_BAD_TARGET 3\r | |
85 | #define VIRTIO_SCSI_S_RESET 4\r | |
86 | #define VIRTIO_SCSI_S_BUSY 5\r | |
87 | #define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6\r | |
88 | #define VIRTIO_SCSI_S_TARGET_FAILURE 7\r | |
89 | #define VIRTIO_SCSI_S_NEXUS_FAILURE 8\r | |
90 | #define VIRTIO_SCSI_S_FAILURE 9\r | |
37078a63 | 91 | \r |
92 | #endif // _VIRTIO_SCSI_H_\r |