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
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