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 */
57typedef 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
76typedef 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
83typedef struct _LogDevAddr_struct {
84  DWORD            VolId:30;
85  DWORD            Mode:2;
86  BYTE             reserved[4];
87} LogDevAddr_struct;
88
89typedef union _LUNAddr_struct {
90  BYTE               LunAddrBytes[8];
91  SCSI3Addr_struct   SCSI3Lun[4];
92  PhysDevAddr_struct PhysDev;
93  LogDevAddr_struct  LogDev;
94} LUNAddr_struct;
95
96typedef 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
107typedef 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;
120typedef 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