429c42c9 |
1 | #ifndef CCISS_DEFS_H |
2 | #define CCISS_DEFS_H |
3 | |
4 | #include <linux/types.h> |
5 | |
6 | /* general boundary definitions */ |
7 | #define SENSEINFOBYTES 32 /* note that this value may vary |
8 | between host implementations */ |
9 | |
10 | /* Command Status value */ |
11 | #define CMD_SUCCESS 0x0000 |
12 | #define CMD_TARGET_STATUS 0x0001 |
13 | #define CMD_DATA_UNDERRUN 0x0002 |
14 | #define CMD_DATA_OVERRUN 0x0003 |
15 | #define CMD_INVALID 0x0004 |
16 | #define CMD_PROTOCOL_ERR 0x0005 |
17 | #define CMD_HARDWARE_ERR 0x0006 |
18 | #define CMD_CONNECTION_LOST 0x0007 |
19 | #define CMD_ABORTED 0x0008 |
20 | #define CMD_ABORT_FAILED 0x0009 |
21 | #define CMD_UNSOLICITED_ABORT 0x000A |
22 | #define CMD_TIMEOUT 0x000B |
23 | #define CMD_UNABORTABLE 0x000C |
24 | |
25 | /* transfer direction */ |
26 | #define XFER_NONE 0x00 |
27 | #define XFER_WRITE 0x01 |
28 | #define XFER_READ 0x02 |
29 | #define XFER_RSVD 0x03 |
30 | |
31 | /* task attribute */ |
32 | #define ATTR_UNTAGGED 0x00 |
33 | #define ATTR_SIMPLE 0x04 |
34 | #define ATTR_HEADOFQUEUE 0x05 |
35 | #define ATTR_ORDERED 0x06 |
36 | #define ATTR_ACA 0x07 |
37 | |
38 | /* cdb type */ |
39 | #define TYPE_CMD 0x00 |
40 | #define TYPE_MSG 0x01 |
41 | |
42 | /* Type defs used in the following structs */ |
43 | #define BYTE __u8 |
44 | #define WORD __u16 |
45 | #define HWORD __u16 |
46 | #define DWORD __u32 |
47 | |
48 | #define CISS_MAX_LUN 1024 |
49 | |
50 | #define LEVEL2LUN 1 /* index into Target(x) structure, due to byte swapping */ |
51 | #define LEVEL3LUN 0 |
52 | |
53 | #pragma pack(1) |
54 | |
55 | /* Command List Structure */ |
56 | typedef union _SCSI3Addr_struct { |
57 | struct { |
58 | BYTE Dev; |
59 | BYTE Bus:6; |
60 | BYTE Mode:2; /* b00 */ |
61 | } PeripDev; |
62 | struct { |
63 | BYTE DevLSB; |
64 | BYTE DevMSB:6; |
65 | BYTE Mode:2; /* b01 */ |
66 | } LogDev; |
67 | struct { |
68 | BYTE Dev:5; |
69 | BYTE Bus:3; |
70 | BYTE Targ:6; |
71 | BYTE Mode:2; /* b10 */ |
72 | } LogUnit; |
73 | } SCSI3Addr_struct; |
74 | |
75 | typedef struct _PhysDevAddr_struct { |
76 | DWORD TargetId:24; |
77 | DWORD Bus:6; |
78 | DWORD Mode:2; |
79 | SCSI3Addr_struct Target[2]; /* 2 level target device addr */ |
80 | } PhysDevAddr_struct; |
81 | |
82 | typedef struct _LogDevAddr_struct { |
83 | DWORD VolId:30; |
84 | DWORD Mode:2; |
85 | BYTE reserved[4]; |
86 | } LogDevAddr_struct; |
87 | |
88 | typedef union _LUNAddr_struct { |
89 | BYTE LunAddrBytes[8]; |
90 | SCSI3Addr_struct SCSI3Lun[4]; |
91 | PhysDevAddr_struct PhysDev; |
92 | LogDevAddr_struct LogDev; |
93 | } LUNAddr_struct; |
94 | |
95 | typedef struct _RequestBlock_struct { |
96 | BYTE CDBLen; |
97 | struct { |
98 | BYTE Type:3; |
99 | BYTE Attribute:3; |
100 | BYTE Direction:2; |
101 | } Type; |
102 | HWORD Timeout; |
103 | BYTE CDB[16]; |
104 | } RequestBlock_struct; |
105 | |
106 | typedef union _MoreErrInfo_struct{ |
107 | struct { |
108 | BYTE Reserved[3]; |
109 | BYTE Type; |
110 | DWORD ErrorInfo; |
111 | } Common_Info; |
112 | struct{ |
113 | BYTE Reserved[2]; |
114 | BYTE offense_size; /* size of offending entry */ |
115 | BYTE offense_num; /* byte # of offense 0-base */ |
116 | DWORD offense_value; |
117 | } Invalid_Cmd; |
118 | } MoreErrInfo_struct; |
119 | typedef struct _ErrorInfo_struct { |
120 | BYTE ScsiStatus; |
121 | BYTE SenseLen; |
122 | HWORD CommandStatus; |
123 | DWORD ResidualCnt; |
124 | MoreErrInfo_struct MoreErrInfo; |
125 | BYTE SenseInfo[SENSEINFOBYTES]; |
126 | } ErrorInfo_struct; |
127 | |
128 | #pragma pack() |
129 | |
130 | #endif /* CCISS_DEFS_H */ |