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dann frazier429c42c2010-02-17 16:55:11 -07001#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 */
56typedef 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
75typedef 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
82typedef struct _LogDevAddr_struct {
83 DWORD VolId:30;
84 DWORD Mode:2;
85 BYTE reserved[4];
86} LogDevAddr_struct;
87
88typedef union _LUNAddr_struct {
89 BYTE LunAddrBytes[8];
90 SCSI3Addr_struct SCSI3Lun[4];
91 PhysDevAddr_struct PhysDev;
92 LogDevAddr_struct LogDev;
93} LUNAddr_struct;
94
95typedef 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
106typedef 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;
119typedef 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 */