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 definitions
   9 #define SENSEINFOBYTES          32//note that this value may vary between host implementations
  10 #define MAXSGENTRIES            32
  11 #define CCISS_SG_CHAIN          0x80000000
  12 #define MAXREPLYQS              256
  13
  14 //Command Status value
  15 #define CMD_SUCCESS             0x0000
  16 #define CMD_TARGET_STATUS       0x0001
  17 #define CMD_DATA_UNDERRUN       0x0002
  18 #define CMD_DATA_OVERRUN        0x0003
  19 #define CMD_INVALID             0x0004
  20 #define CMD_PROTOCOL_ERR        0x0005
  21 #define CMD_HARDWARE_ERR        0x0006
  22 #define CMD_CONNECTION_LOST     0x0007
  23 #define CMD_ABORTED             0x0008
  24 #define CMD_ABORT_FAILED        0x0009
  25 #define CMD_UNSOLICITED_ABORT   0x000A
  26 #define CMD_TIMEOUT             0x000B
  27 #define CMD_UNABORTABLE         0x000C
  28
  29 /* Unit Attentions ASC's as defined for the MSA2012sa */
  30 #define POWER_OR_RESET                  0x29
  31 #define STATE_CHANGED                   0x2a
  32 #define UNIT_ATTENTION_CLEARED          0x2f
  33 #define LUN_FAILED                      0x3e
  34 #define REPORT_LUNS_CHANGED             0x3f
  35
  36 /* Unit Attentions ASCQ's as defined for the MSA2012sa */
  37
  38         /* These ASCQ's defined for ASC = POWER_OR_RESET */
  39 #define POWER_ON_RESET                  0x00
  40 #define POWER_ON_REBOOT                 0x01
  41 #define SCSI_BUS_RESET                  0x02
  42 #define MSA_TARGET_RESET                0x03
  43 #define CONTROLLER_FAILOVER             0x04
  44 #define TRANSCEIVER_SE                  0x05
  45 #define TRANSCEIVER_LVD                 0x06
  46
  47         /* These ASCQ's defined for ASC = STATE_CHANGED */
  48 #define RESERVATION_PREEMPTED           0x03
  49 #define ASYM_ACCESS_CHANGED             0x06
  50 #define LUN_CAPACITY_CHANGED            0x09
  51
  52 //transfer direction
  53 #define XFER_NONE               0x00
  54 #define XFER_WRITE              0x01
  55 #define XFER_READ               0x02
  56 #define XFER_RSVD               0x03
  57
  58 //task attribute
  59 #define ATTR_UNTAGGED           0x00
  60 #define ATTR_SIMPLE             0x04
  61 #define ATTR_HEADOFQUEUE        0x05
  62 #define ATTR_ORDERED            0x06
  63 #define ATTR_ACA                0x07
  64
  65 //cdb type
  66 #define TYPE_CMD                                0x00
  67 #define TYPE_MSG                                0x01
  68
  69 //config space register offsets
  70 #define CFG_VENDORID            0x00
  71 #define CFG_DEVICEID            0x02
  72 #define CFG_I2OBAR              0x10
  73 #define CFG_MEM1BAR             0x14
  74
  75 //i2o space register offsets
  76 #define I2O_IBDB_SET            0x20
  77 #define I2O_IBDB_CLEAR          0x70
  78 #define I2O_INT_STATUS          0x30
  79 #define I2O_INT_MASK            0x34
  80 #define I2O_IBPOST_Q            0x40
  81 #define I2O_OBPOST_Q            0x44
  82 #define I2O_DMA1_CFG            0x214
  83
  84 //Configuration Table
  85 #define CFGTBL_ChangeReq        0x00000001l
  86 #define CFGTBL_AccCmds          0x00000001l
  87
  88 #define CFGTBL_Trans_Simple     0x00000002l
  89
  90 #define CFGTBL_BusType_Ultra2   0x00000001l
  91 #define CFGTBL_BusType_Ultra3   0x00000002l
  92 #define CFGTBL_BusType_Fibre1G  0x00000100l
  93 #define CFGTBL_BusType_Fibre2G  0x00000200l
  94 typedef struct _vals32
  95 {
  96         __u32   lower;
  97         __u32   upper;
  98 } vals32;
  99
 100 typedef union _u64bit
 101 {
 102    vals32       val32;
 103    __u64        val;
 104 } u64bit;
 105
 106 // Type defs used in the following structs
 107 #define BYTE __u8
 108 #define WORD __u16
 109 #define HWORD __u16
 110 #define DWORD __u32
 111 #define QWORD vals32
 112
 113 //###########################################################################
 114 //STRUCTURES
 115 //###########################################################################
 116 #define CISS_MAX_LUN    1024
 117 #define CISS_MAX_PHYS_LUN       1024
 118 // SCSI-3 Cmmands
 119
 120 #pragma pack(1)
 121
 122 #define CISS_INQUIRY 0x12
 123 //Date returned
 124 typedef struct _InquiryData_struct
 125 {
 126   BYTE data_byte[36];
 127 } InquiryData_struct;
 128
 129 #define CISS_REPORT_LOG 0xc2    /* Report Logical LUNs */
 130 #define CISS_REPORT_PHYS 0xc3   /* Report Physical LUNs */
 131 // Data returned
 132 typedef struct _ReportLUNdata_struct
 133 {
 134   BYTE LUNListLength[4];
 135   DWORD reserved;
 136   BYTE LUN[CISS_MAX_LUN][8];
 137 } ReportLunData_struct;
 138
 139 #define CCISS_READ_CAPACITY 0x25 /* Read Capacity */
 140 typedef struct _ReadCapdata_struct
 141 {
 142   BYTE total_size[4];   // Total size in blocks
 143   BYTE block_size[4];   // Size of blocks in bytes
 144 } ReadCapdata_struct;
 145
 146 #define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */
 147
 148 /* service action to differentiate a 16 byte read capacity from
 149    other commands that use the 0x9e SCSI op code */
 150
 151 #define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10
 152
 153 typedef struct _ReadCapdata_struct_16
 154 {
 155         BYTE total_size[8];   /* Total size in blocks */
 156         BYTE block_size[4];   /* Size of blocks in bytes */
 157         BYTE prot_en:1;       /* protection enable bit */
 158         BYTE rto_en:1;        /* reference tag own enable bit */
 159         BYTE reserved:6;      /* reserved bits */
 160         BYTE reserved2[18];   /* reserved bytes per spec */
 161 } ReadCapdata_struct_16;
 162
 163 /* Define the supported read/write commands for cciss based controllers */
 164
 165 #define CCISS_READ_10   0x28    /* Read(10)  */
 166 #define CCISS_WRITE_10  0x2a    /* Write(10) */
 167 #define CCISS_READ_16   0x88    /* Read(16)  */
 168 #define CCISS_WRITE_16  0x8a    /* Write(16) */
 169
 170 /* Define the CDB lengths supported by cciss based controllers */
 171
 172 #define CDB_LEN10       10
 173 #define CDB_LEN16       16
 174
 175 // BMIC commands
 176 #define BMIC_READ 0x26
 177 #define BMIC_WRITE 0x27
 178 #define BMIC_CACHE_FLUSH 0xc2
 179 #define CCISS_CACHE_FLUSH 0x01  //C2 was already being used by CCISS
 180
 181 //Command List Structure
 182 typedef union _SCSI3Addr_struct {
 183    struct {
 184     BYTE Dev;
 185     BYTE Bus:6;
 186     BYTE Mode:2;        // b00
 187   } PeripDev;
 188    struct {
 189     BYTE DevLSB;
 190     BYTE DevMSB:6;
 191     BYTE Mode:2;        // b01
 192   } LogDev;
 193    struct {
 194     BYTE Dev:5;
 195     BYTE Bus:3;
 196     BYTE Targ:6;
 197     BYTE Mode:2;        // b10
 198   } LogUnit;
 199 } SCSI3Addr_struct;
 200
 201 typedef struct _PhysDevAddr_struct {
 202   DWORD             TargetId:24;
 203   DWORD             Bus:6;
 204   DWORD             Mode:2;
 205   SCSI3Addr_struct  Target[2]; //2 level target device addr
 206 } PhysDevAddr_struct;
 207
 208 typedef struct _LogDevAddr_struct {
 209   DWORD            VolId:30;
 210   DWORD            Mode:2;
 211   BYTE             reserved[4];
 212 } LogDevAddr_struct;
 213
 214 typedef union _LUNAddr_struct {
 215   BYTE               LunAddrBytes[8];
 216   SCSI3Addr_struct   SCSI3Lun[4];
 217   PhysDevAddr_struct PhysDev;
 218   LogDevAddr_struct  LogDev;
 219 } LUNAddr_struct;
 220
 221 #define CTLR_LUNID "\0\0\0\0\0\0\0\0"
 222
 223 typedef struct _CommandListHeader_struct {
 224   BYTE              ReplyQueue;
 225   BYTE              SGList;
 226   HWORD             SGTotal;
 227   QWORD             Tag;
 228   LUNAddr_struct    LUN;
 229 } CommandListHeader_struct;
 230 typedef struct _RequestBlock_struct {
 231   BYTE   CDBLen;
 232   struct {
 233     BYTE Type:3;
 234     BYTE Attribute:3;
 235     BYTE Direction:2;
 236   } Type;
 237   HWORD  Timeout;
 238   BYTE   CDB[16];
 239 } RequestBlock_struct;
 240 typedef struct _ErrDescriptor_struct {
 241   QWORD  Addr;
 242   DWORD  Len;
 243 } ErrDescriptor_struct;
 244 typedef struct _SGDescriptor_struct {
 245   QWORD  Addr;
 246   DWORD  Len;
 247   DWORD  Ext;
 248 } SGDescriptor_struct;
 249
 250 typedef union _MoreErrInfo_struct{
 251   struct {
 252     BYTE  Reserved[3];
 253     BYTE  Type;
 254     DWORD ErrorInfo;
 255   }Common_Info;
 256   struct{
 257     BYTE  Reserved[2];
 258     BYTE  offense_size;//size of offending entry
 259     BYTE  offense_num; //byte # of offense 0-base
 260     DWORD offense_value;
 261   }Invalid_Cmd;
 262 }MoreErrInfo_struct;
 263 typedef struct _ErrorInfo_struct {
 264   BYTE               ScsiStatus;
 265   BYTE               SenseLen;
 266   HWORD              CommandStatus;
 267   DWORD              ResidualCnt;
 268   MoreErrInfo_struct MoreErrInfo;
 269   BYTE               SenseInfo[SENSEINFOBYTES];
 270 } ErrorInfo_struct;
 271
 272 /* Command types */
 273 #define CMD_RWREQ       0x00
 274 #define CMD_IOCTL_PEND  0x01
 275 #define CMD_SCSI        0x03
 276 #define CMD_MSG_DONE    0x04
 277 #define CMD_MSG_TIMEOUT 0x05
 278 #define CMD_MSG_STALE   0xff
 279
 280 /* This structure needs to be divisible by 8 for new
 281  * indexing method.
 282  */
 283 #define PADSIZE (sizeof(long) - 4)
 284 typedef struct _CommandList_struct {
 285   CommandListHeader_struct Header;
 286   RequestBlock_struct      Request;
 287   ErrDescriptor_struct     ErrDesc;
 288   SGDescriptor_struct      SG[MAXSGENTRIES];
 289         /* information associated with the command */
 290   __u32                    busaddr; /* physical address of this record */
 291   ErrorInfo_struct *       err_info; /* pointer to the allocated mem */
 292   int                      ctlr;
 293   int                      cmd_type;
 294   long                     cmdindex;
 295   struct hlist_node list;
 296   struct request *         rq;
 297   struct completion *waiting;
 298   int    retry_count;
 299   void * scsi_cmd;
 300   char   pad[PADSIZE];
 301 } CommandList_struct;
 302
 303 //Configuration Table Structure
 304 typedef struct _HostWrite_struct {
 305   DWORD TransportRequest;
 306   DWORD Reserved;
 307   DWORD CoalIntDelay;
 308   DWORD CoalIntCount;
 309 } HostWrite_struct;
 310
 311 typedef struct _CfgTable_struct {
 312   BYTE             Signature[4];
 313   DWORD            SpecValence;
 314   DWORD            TransportSupport;
 315   DWORD            TransportActive;
 316   HostWrite_struct HostWrite;
 317   DWORD            CmdsOutMax;
 318   DWORD            BusTypes;
 319   DWORD            Reserved;
 320   BYTE             ServerName[16];
 321   DWORD            HeartBeat;
 322   DWORD            SCSI_Prefetch;
 323   DWORD            MaxSGElements;
 324   DWORD            MaxLogicalUnits;
 325   DWORD            MaxPhysicalDrives;
 326   DWORD            MaxPhysicalDrivesPerLogicalUnit;
 327 } CfgTable_struct;
 328 #pragma pack()
 329 #endif // CCISS_CMD_H