drivers/block/cciss_cmd.h

   1 #ifndef CCISS_CMD_H
   2 #define CCISS_CMD_H
   3 //###########################################################################
   4 //DEFINES
   5 //###########################################################################
   6 #define CISS_VERSION "1.00"
   7
   8 //general boundary defintions
   9 #define SENSEINFOBYTES          32//note that this value may vary between host implementations
  10 #define MAXSGENTRIES            31
  11 #define MAXREPLYQS              256
  12
  13 //Command Status value
  14 #define CMD_SUCCESS             0x0000
  15 #define CMD_TARGET_STATUS       0x0001
  16 #define CMD_DATA_UNDERRUN       0x0002
  17 #define CMD_DATA_OVERRUN        0x0003
  18 #define CMD_INVALID             0x0004
  19 #define CMD_PROTOCOL_ERR        0x0005
  20 #define CMD_HARDWARE_ERR        0x0006
  21 #define CMD_CONNECTION_LOST     0x0007
  22 #define CMD_ABORTED             0x0008
  23 #define CMD_ABORT_FAILED        0x0009
  24 #define CMD_UNSOLICITED_ABORT   0x000A
  25 #define CMD_TIMEOUT             0x000B
  26 #define CMD_UNABORTABLE         0x000C
  27
  28 /* Unit Attentions ASC's as defined for the MSA2012sa */
  29 #define POWER_OR_RESET                  0x29
  30 #define STATE_CHANGED                   0x2a
  31 #define UNIT_ATTENTION_CLEARED          0x2f
  32 #define LUN_FAILED                      0x3e
  33 #define REPORT_LUNS_CHANGED             0x3f
  34
  35 /* Unit Attentions ASCQ's as defined for the MSA2012sa */
  36
  37         /* These ASCQ's defined for ASC = POWER_OR_RESET */
  38 #define POWER_ON_RESET                  0x00
  39 #define POWER_ON_REBOOT                 0x01
  40 #define SCSI_BUS_RESET                  0x02
  41 #define MSA_TARGET_RESET                0x03
  42 #define CONTROLLER_FAILOVER             0x04
  43 #define TRANSCEIVER_SE                  0x05
  44 #define TRANSCEIVER_LVD                 0x06
  45
  46         /* These ASCQ's defined for ASC = STATE_CHANGED */
  47 #define RESERVATION_PREEMPTED           0x03
  48 #define ASYM_ACCESS_CHANGED             0x06
  49 #define LUN_CAPACITY_CHANGED            0x09
  50
  51 //transfer direction
  52 #define XFER_NONE               0x00
  53 #define XFER_WRITE              0x01
  54 #define XFER_READ               0x02
  55 #define XFER_RSVD               0x03
  56
  57 //task attribute
  58 #define ATTR_UNTAGGED           0x00
  59 #define ATTR_SIMPLE             0x04
  60 #define ATTR_HEADOFQUEUE        0x05
  61 #define ATTR_ORDERED            0x06
  62 #define ATTR_ACA                0x07
  63
  64 //cdb type
  65 #define TYPE_CMD                                0x00
  66 #define TYPE_MSG                                0x01
  67
  68 //config space register offsets
  69 #define CFG_VENDORID            0x00
  70 #define CFG_DEVICEID            0x02
  71 #define CFG_I2OBAR              0x10
  72 #define CFG_MEM1BAR             0x14
  73
  74 //i2o space register offsets
  75 #define I2O_IBDB_SET            0x20
  76 #define I2O_IBDB_CLEAR          0x70
  77 #define I2O_INT_STATUS          0x30
  78 #define I2O_INT_MASK            0x34
  79 #define I2O_IBPOST_Q            0x40
  80 #define I2O_OBPOST_Q            0x44
  81 #define I2O_DMA1_CFG            0x214
  82
  83 //Configuration Table
  84 #define CFGTBL_ChangeReq        0x00000001l
  85 #define CFGTBL_AccCmds          0x00000001l
  86
  87 #define CFGTBL_Trans_Simple     0x00000002l
  88
  89 #define CFGTBL_BusType_Ultra2   0x00000001l
  90 #define CFGTBL_BusType_Ultra3   0x00000002l
  91 #define CFGTBL_BusType_Fibre1G  0x00000100l
  92 #define CFGTBL_BusType_Fibre2G  0x00000200l
  93 typedef struct _vals32
  94 {
  95         __u32   lower;
  96         __u32   upper;
  97 } vals32;
  98
  99 typedef union _u64bit
 100 {
 101    vals32       val32;
 102    __u64        val;
 103 } u64bit;
 104
 105 // Type defs used in the following structs
 106 #define BYTE __u8
 107 #define WORD __u16
 108 #define HWORD __u16
 109 #define DWORD __u32
 110 #define QWORD vals32
 111
 112 //###########################################################################
 113 //STRUCTURES
 114 //###########################################################################
 115 #define CISS_MAX_LUN    1024
 116 #define CISS_MAX_PHYS_LUN       1024
 117 // SCSI-3 Cmmands
 118
 119 #pragma pack(1)
 120
 121 #define CISS_INQUIRY 0x12
 122 //Date returned
 123 typedef struct _InquiryData_struct
 124 {
 125   BYTE data_byte[36];
 126 } InquiryData_struct;
 127
 128 #define CISS_REPORT_LOG 0xc2    /* Report Logical LUNs */
 129 #define CISS_REPORT_PHYS 0xc3   /* Report Physical LUNs */
 130 // Data returned
 131 typedef struct _ReportLUNdata_struct
 132 {
 133   BYTE LUNListLength[4];
 134   DWORD reserved;
 135   BYTE LUN[CISS_MAX_LUN][8];
 136 } ReportLunData_struct;
 137
 138 #define CCISS_READ_CAPACITY 0x25 /* Read Capacity */
 139 typedef struct _ReadCapdata_struct
 140 {
 141   BYTE total_size[4];   // Total size in blocks
 142   BYTE block_size[4];   // Size of blocks in bytes
 143 } ReadCapdata_struct;
 144
 145 #define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */
 146
 147 /* service action to differentiate a 16 byte read capacity from
 148    other commands that use the 0x9e SCSI op code */
 149
 150 #define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10
 151
 152 typedef struct _ReadCapdata_struct_16
 153 {
 154         BYTE total_size[8];   /* Total size in blocks */
 155         BYTE block_size[4];   /* Size of blocks in bytes */
 156         BYTE prot_en:1;       /* protection enable bit */
 157         BYTE rto_en:1;        /* reference tag own enable bit */
 158         BYTE reserved:6;      /* reserved bits */
 159         BYTE reserved2[18];   /* reserved bytes per spec */
 160 } ReadCapdata_struct_16;
 161
 162 /* Define the supported read/write commands for cciss based controllers */
 163
 164 #define CCISS_READ_10   0x28    /* Read(10)  */
 165 #define CCISS_WRITE_10  0x2a    /* Write(10) */
 166 #define CCISS_READ_16   0x88    /* Read(16)  */
 167 #define CCISS_WRITE_16  0x8a    /* Write(16) */
 168
 169 /* Define the CDB lengths supported by cciss based controllers */
 170
 171 #define CDB_LEN10       10
 172 #define CDB_LEN16       16
 173
 174 // BMIC commands
 175 #define BMIC_READ 0x26
 176 #define BMIC_WRITE 0x27
 177 #define BMIC_CACHE_FLUSH 0xc2
 178 #define CCISS_CACHE_FLUSH 0x01  //C2 was already being used by CCISS
 179
 180 //Command List Structure
 181 typedef union _SCSI3Addr_struct {
 182    struct {
 183     BYTE Dev;
 184     BYTE Bus:6;
 185     BYTE Mode:2;        // b00
 186   } PeripDev;
 187    struct {
 188     BYTE DevLSB;
 189     BYTE DevMSB:6;
 190     BYTE Mode:2;        // b01
 191   } LogDev;
 192    struct {
 193     BYTE Dev:5;
 194     BYTE Bus:3;
 195     BYTE Targ:6;
 196     BYTE Mode:2;        // b10
 197   } LogUnit;
 198 } SCSI3Addr_struct;
 199
 200 typedef struct _PhysDevAddr_struct {
 201   DWORD             TargetId:24;
 202   DWORD             Bus:6;
 203   DWORD             Mode:2;
 204   SCSI3Addr_struct  Target[2]; //2 level target device addr
 205 } PhysDevAddr_struct;
 206
 207 typedef struct _LogDevAddr_struct {
 208   DWORD            VolId:30;
 209   DWORD            Mode:2;
 210   BYTE             reserved[4];
 211 } LogDevAddr_struct;
 212
 213 typedef union _LUNAddr_struct {
 214   BYTE               LunAddrBytes[8];
 215   SCSI3Addr_struct   SCSI3Lun[4];
 216   PhysDevAddr_struct PhysDev;
 217   LogDevAddr_struct  LogDev;
 218 } LUNAddr_struct;
 219
 220 typedef struct _CommandListHeader_struct {
 221   BYTE              ReplyQueue;
 222   BYTE              SGList;
 223   HWORD             SGTotal;
 224   QWORD             Tag;
 225   LUNAddr_struct    LUN;
 226 } CommandListHeader_struct;
 227 typedef struct _RequestBlock_struct {
 228   BYTE   CDBLen;
 229   struct {
 230     BYTE Type:3;
 231     BYTE Attribute:3;
 232     BYTE Direction:2;
 233   } Type;
 234   HWORD  Timeout;
 235   BYTE   CDB[16];
 236 } RequestBlock_struct;
 237 typedef struct _ErrDescriptor_struct {
 238   QWORD  Addr;
 239   DWORD  Len;
 240 } ErrDescriptor_struct;
 241 typedef struct _SGDescriptor_struct {
 242   QWORD  Addr;
 243   DWORD  Len;
 244   DWORD  Ext;
 245 } SGDescriptor_struct;
 246
 247 typedef union _MoreErrInfo_struct{
 248   struct {
 249     BYTE  Reserved[3];
 250     BYTE  Type;
 251     DWORD ErrorInfo;
 252   }Common_Info;
 253   struct{
 254     BYTE  Reserved[2];
 255     BYTE  offense_size;//size of offending entry
 256     BYTE  offense_num; //byte # of offense 0-base
 257     DWORD offense_value;
 258   }Invalid_Cmd;
 259 }MoreErrInfo_struct;
 260 typedef struct _ErrorInfo_struct {
 261   BYTE               ScsiStatus;
 262   BYTE               SenseLen;
 263   HWORD              CommandStatus;
 264   DWORD              ResidualCnt;
 265   MoreErrInfo_struct MoreErrInfo;
 266   BYTE               SenseInfo[SENSEINFOBYTES];
 267 } ErrorInfo_struct;
 268
 269 /* Command types */
 270 #define CMD_RWREQ       0x00
 271 #define CMD_IOCTL_PEND  0x01
 272 #define CMD_SCSI        0x03
 273 #define CMD_MSG_DONE    0x04
 274 #define CMD_MSG_TIMEOUT 0x05
 275
 276 /* This structure needs to be divisible by 8 for new
 277  * indexing method.
 278  */
 279 #define PADSIZE (sizeof(long) - 4)
 280 typedef struct _CommandList_struct {
 281   CommandListHeader_struct Header;
 282   RequestBlock_struct      Request;
 283   ErrDescriptor_struct     ErrDesc;
 284   SGDescriptor_struct      SG[MAXSGENTRIES];
 285         /* information associated with the command */
 286   __u32                    busaddr; /* physical address of this record */
 287   ErrorInfo_struct *       err_info; /* pointer to the allocated mem */
 288   int                      ctlr;
 289   int                      cmd_type;
 290   long                     cmdindex;
 291   struct hlist_node list;
 292   struct request *         rq;
 293   struct completion *waiting;
 294   int    retry_count;
 295   void * scsi_cmd;
 296   char   pad[PADSIZE];
 297 } CommandList_struct;
 298
 299 //Configuration Table Structure
 300 typedef struct _HostWrite_struct {
 301   DWORD TransportRequest;
 302   DWORD Reserved;
 303   DWORD CoalIntDelay;
 304   DWORD CoalIntCount;
 305 } HostWrite_struct;
 306
 307 typedef struct _CfgTable_struct {
 308   BYTE             Signature[4];
 309   DWORD            SpecValence;
 310   DWORD            TransportSupport;
 311   DWORD            TransportActive;
 312   HostWrite_struct HostWrite;
 313   DWORD            CmdsOutMax;
 314   DWORD            BusTypes;
 315   DWORD            Reserved;
 316   BYTE             ServerName[16];
 317   DWORD            HeartBeat;
 318   DWORD            SCSI_Prefetch;
 319 } CfgTable_struct;
 320 #pragma pack()
 321 #endif // CCISS_CMD_H