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 */
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 */
131