include/linux/cciss_defs.h

   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 */