1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | #ifndef CCISS_DEFS_H |
3 | #define CCISS_DEFS_H |
4 | |
5 | #include <linux/types.h> |
6 | |
7 | /* general boundary definitions */ |
8 | #define SENSEINFOBYTES 32 /* note that this value may vary |
9 | between host implementations */ |
10 | |
11 | /* Command Status value */ |
12 | #define CMD_SUCCESS 0x0000 |
13 | #define CMD_TARGET_STATUS 0x0001 |
14 | #define CMD_DATA_UNDERRUN 0x0002 |
15 | #define CMD_DATA_OVERRUN 0x0003 |
16 | #define CMD_INVALID 0x0004 |
17 | #define CMD_PROTOCOL_ERR 0x0005 |
18 | #define CMD_HARDWARE_ERR 0x0006 |
19 | #define CMD_CONNECTION_LOST 0x0007 |
20 | #define CMD_ABORTED 0x0008 |
21 | #define CMD_ABORT_FAILED 0x0009 |
22 | #define CMD_UNSOLICITED_ABORT 0x000A |
23 | #define CMD_TIMEOUT 0x000B |
24 | #define CMD_UNABORTABLE 0x000C |
25 | |
26 | /* transfer direction */ |
27 | #define XFER_NONE 0x00 |
28 | #define XFER_WRITE 0x01 |
29 | #define XFER_READ 0x02 |
30 | #define XFER_RSVD 0x03 |
31 | |
32 | /* task attribute */ |
33 | #define ATTR_UNTAGGED 0x00 |
34 | #define ATTR_SIMPLE 0x04 |
35 | #define ATTR_HEADOFQUEUE 0x05 |
36 | #define ATTR_ORDERED 0x06 |
37 | #define ATTR_ACA 0x07 |
38 | |
39 | /* cdb type */ |
40 | #define TYPE_CMD 0x00 |
41 | #define TYPE_MSG 0x01 |
42 | |
43 | /* Type defs used in the following structs */ |
44 | #define BYTE __u8 |
45 | #define WORD __u16 |
46 | #define HWORD __u16 |
47 | #define DWORD __u32 |
48 | |
49 | #define CISS_MAX_LUN 1024 |
50 | |
51 | #define LEVEL2LUN 1 /* index into Target(x) structure, due to byte swapping */ |
52 | #define LEVEL3LUN 0 |
53 | |
54 | #pragma pack(1) |
55 | |
56 | /* Command List Structure */ |
57 | typedef union _SCSI3Addr_struct { |
58 | struct { |
59 | BYTE Dev; |
60 | BYTE Bus:6; |
61 | BYTE Mode:2; /* b00 */ |
62 | } PeripDev; |
63 | struct { |
64 | BYTE DevLSB; |
65 | BYTE DevMSB:6; |
66 | BYTE Mode:2; /* b01 */ |
67 | } LogDev; |
68 | struct { |
69 | BYTE Dev:5; |
70 | BYTE Bus:3; |
71 | BYTE Targ:6; |
72 | BYTE Mode:2; /* b10 */ |
73 | } LogUnit; |
74 | } SCSI3Addr_struct; |
75 | |
76 | typedef struct _PhysDevAddr_struct { |
77 | DWORD TargetId:24; |
78 | DWORD Bus:6; |
79 | DWORD Mode:2; |
80 | SCSI3Addr_struct Target[2]; /* 2 level target device addr */ |
81 | } PhysDevAddr_struct; |
82 | |
83 | typedef struct _LogDevAddr_struct { |
84 | DWORD VolId:30; |
85 | DWORD Mode:2; |
86 | BYTE reserved[4]; |
87 | } LogDevAddr_struct; |
88 | |
89 | typedef union _LUNAddr_struct { |
90 | BYTE LunAddrBytes[8]; |
91 | SCSI3Addr_struct SCSI3Lun[4]; |
92 | PhysDevAddr_struct PhysDev; |
93 | LogDevAddr_struct LogDev; |
94 | } LUNAddr_struct; |
95 | |
96 | typedef struct _RequestBlock_struct { |
97 | BYTE CDBLen; |
98 | struct { |
99 | BYTE Type:3; |
100 | BYTE Attribute:3; |
101 | BYTE Direction:2; |
102 | } Type; |
103 | HWORD Timeout; |
104 | BYTE CDB[16]; |
105 | } RequestBlock_struct; |
106 | |
107 | typedef union _MoreErrInfo_struct{ |
108 | struct { |
109 | BYTE Reserved[3]; |
110 | BYTE Type; |
111 | DWORD ErrorInfo; |
112 | } Common_Info; |
113 | struct{ |
114 | BYTE Reserved[2]; |
115 | BYTE offense_size; /* size of offending entry */ |
116 | BYTE offense_num; /* byte # of offense 0-base */ |
117 | DWORD offense_value; |
118 | } Invalid_Cmd; |
119 | } MoreErrInfo_struct; |
120 | typedef struct _ErrorInfo_struct { |
121 | BYTE ScsiStatus; |
122 | BYTE SenseLen; |
123 | HWORD CommandStatus; |
124 | DWORD ResidualCnt; |
125 | MoreErrInfo_struct MoreErrInfo; |
126 | BYTE SenseInfo[SENSEINFOBYTES]; |
127 | } ErrorInfo_struct; |
128 | |
129 | #pragma pack() |
130 | |
131 | #endif /* CCISS_DEFS_H */ |
132 | |