drivers/block/cciss_cmd.h

   1 #ifndef CCISS_CMD_H
   2 #define CCISS_CMD_H
   3
   4 #include <linux/cciss_defs.h>
   5
   6 /* DEFINES */
   7 #define CISS_VERSION "1.00"
   8
   9 /* general boundary definitions */
  10 #define MAXSGENTRIES            32
  11 #define CCISS_SG_CHAIN          0x80000000
  12 #define MAXREPLYQS              256
  13
  14 /* Unit Attentions ASC's as defined for the MSA2012sa */
  15 #define POWER_OR_RESET                  0x29
  16 #define STATE_CHANGED                   0x2a
  17 #define UNIT_ATTENTION_CLEARED          0x2f
  18 #define LUN_FAILED                      0x3e
  19 #define REPORT_LUNS_CHANGED             0x3f
  20
  21 /* Unit Attentions ASCQ's as defined for the MSA2012sa */
  22
  23         /* These ASCQ's defined for ASC = POWER_OR_RESET */
  24 #define POWER_ON_RESET                  0x00
  25 #define POWER_ON_REBOOT                 0x01
  26 #define SCSI_BUS_RESET                  0x02
  27 #define MSA_TARGET_RESET                0x03
  28 #define CONTROLLER_FAILOVER             0x04
  29 #define TRANSCEIVER_SE                  0x05
  30 #define TRANSCEIVER_LVD                 0x06
  31
  32         /* These ASCQ's defined for ASC = STATE_CHANGED */
  33 #define RESERVATION_PREEMPTED           0x03
  34 #define ASYM_ACCESS_CHANGED             0x06
  35 #define LUN_CAPACITY_CHANGED            0x09
  36
  37 /* config space register offsets */
  38 #define CFG_VENDORID            0x00
  39 #define CFG_DEVICEID            0x02
  40 #define CFG_I2OBAR              0x10
  41 #define CFG_MEM1BAR             0x14
  42
  43 /* i2o space register offsets */
  44 #define I2O_IBDB_SET            0x20
  45 #define I2O_IBDB_CLEAR          0x70
  46 #define I2O_INT_STATUS          0x30
  47 #define I2O_INT_MASK            0x34
  48 #define I2O_IBPOST_Q            0x40
  49 #define I2O_OBPOST_Q            0x44
  50 #define I2O_DMA1_CFG            0x214
  51
  52 /* Configuration Table */
  53 #define CFGTBL_ChangeReq        0x00000001l
  54 #define CFGTBL_AccCmds          0x00000001l
  55 #define DOORBELL_CTLR_RESET     0x00000004l
  56 #define DOORBELL_CTLR_RESET2    0x00000020l
  57
  58 #define CFGTBL_Trans_Simple     0x00000002l
  59 #define CFGTBL_Trans_Performant 0x00000004l
  60 #define CFGTBL_Trans_use_short_tags 0x20000000l
  61
  62 #define CFGTBL_BusType_Ultra2   0x00000001l
  63 #define CFGTBL_BusType_Ultra3   0x00000002l
  64 #define CFGTBL_BusType_Fibre1G  0x00000100l
  65 #define CFGTBL_BusType_Fibre2G  0x00000200l
  66 typedef struct _vals32
  67 {
  68         __u32   lower;
  69         __u32   upper;
  70 } vals32;
  71
  72 typedef union _u64bit
  73 {
  74    vals32       val32;
  75    __u64        val;
  76 } u64bit;
  77
  78 /* Type defs used in the following structs */
  79 #define QWORD vals32
  80
  81 /* STRUCTURES */
  82 #define CISS_MAX_PHYS_LUN       1024
  83 /* SCSI-3 Cmmands */
  84
  85 #pragma pack(1)
  86
  87 #define CISS_INQUIRY 0x12
  88 /* Date returned */
  89 typedef struct _InquiryData_struct
  90 {
  91   BYTE data_byte[36];
  92 } InquiryData_struct;
  93
  94 #define CISS_REPORT_LOG 0xc2    /* Report Logical LUNs */
  95 #define CISS_REPORT_PHYS 0xc3   /* Report Physical LUNs */
  96 /* Data returned */
  97 typedef struct _ReportLUNdata_struct
  98 {
  99   BYTE LUNListLength[4];
 100   DWORD reserved;
 101   BYTE LUN[CISS_MAX_LUN][8];
 102 } ReportLunData_struct;
 103
 104 #define CCISS_READ_CAPACITY 0x25 /* Read Capacity */
 105 typedef struct _ReadCapdata_struct
 106 {
 107   BYTE total_size[4];   /* Total size in blocks */
 108   BYTE block_size[4];   /* Size of blocks in bytes */
 109 } ReadCapdata_struct;
 110
 111 #define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */
 112
 113 /* service action to differentiate a 16 byte read capacity from
 114    other commands that use the 0x9e SCSI op code */
 115
 116 #define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10
 117
 118 typedef struct _ReadCapdata_struct_16
 119 {
 120         BYTE total_size[8];   /* Total size in blocks */
 121         BYTE block_size[4];   /* Size of blocks in bytes */
 122         BYTE prot_en:1;       /* protection enable bit */
 123         BYTE rto_en:1;        /* reference tag own enable bit */
 124         BYTE reserved:6;      /* reserved bits */
 125         BYTE reserved2[18];   /* reserved bytes per spec */
 126 } ReadCapdata_struct_16;
 127
 128 /* Define the supported read/write commands for cciss based controllers */
 129
 130 #define CCISS_READ_10   0x28    /* Read(10)  */
 131 #define CCISS_WRITE_10  0x2a    /* Write(10) */
 132 #define CCISS_READ_16   0x88    /* Read(16)  */
 133 #define CCISS_WRITE_16  0x8a    /* Write(16) */
 134
 135 /* Define the CDB lengths supported by cciss based controllers */
 136
 137 #define CDB_LEN10       10
 138 #define CDB_LEN16       16
 139
 140 /* BMIC commands */
 141 #define BMIC_READ 0x26
 142 #define BMIC_WRITE 0x27
 143 #define BMIC_CACHE_FLUSH 0xc2
 144 #define CCISS_CACHE_FLUSH 0x01  /* C2 was already being used by CCISS */
 145
 146 #define CCISS_ABORT_MSG 0x00
 147 #define CCISS_RESET_MSG 0x01
 148 #define CCISS_RESET_TYPE_CONTROLLER 0x00
 149 #define CCISS_RESET_TYPE_BUS 0x01
 150 #define CCISS_RESET_TYPE_TARGET 0x03
 151 #define CCISS_RESET_TYPE_LUN 0x04
 152 #define CCISS_NOOP_MSG 0x03
 153
 154 /* Command List Structure */
 155 #define CTLR_LUNID "\0\0\0\0\0\0\0\0"
 156
 157 typedef struct _CommandListHeader_struct {
 158   BYTE              ReplyQueue;
 159   BYTE              SGList;
 160   HWORD             SGTotal;
 161   QWORD             Tag;
 162   LUNAddr_struct    LUN;
 163 } CommandListHeader_struct;
 164 typedef struct _ErrDescriptor_struct {
 165   QWORD  Addr;
 166   DWORD  Len;
 167 } ErrDescriptor_struct;
 168 typedef struct _SGDescriptor_struct {
 169   QWORD  Addr;
 170   DWORD  Len;
 171   DWORD  Ext;
 172 } SGDescriptor_struct;
 173
 174 /* Command types */
 175 #define CMD_RWREQ       0x00
 176 #define CMD_IOCTL_PEND  0x01
 177 #define CMD_SCSI        0x03
 178 #define CMD_MSG_DONE    0x04
 179 #define CMD_MSG_TIMEOUT 0x05
 180 #define CMD_MSG_STALE   0xff
 181
 182 /* This structure needs to be divisible by COMMANDLIST_ALIGNMENT
 183  * because low bits of the address are used to to indicate that
 184  * whether the tag contains an index or an address.  PAD_32 and
 185  * PAD_64 can be adjusted independently as needed for 32-bit
 186  * and 64-bits systems.
 187  */
 188 #define COMMANDLIST_ALIGNMENT (32)
 189 #define IS_64_BIT ((sizeof(long) - 4)/4)
 190 #define IS_32_BIT (!IS_64_BIT)
 191 #define PAD_32 (0)
 192 #define PAD_64 (4)
 193 #define PADSIZE (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
 194 #define DIRECT_LOOKUP_BIT 0x10
 195 #define DIRECT_LOOKUP_SHIFT 5
 196
 197 typedef struct _CommandList_struct {
 198   CommandListHeader_struct Header;
 199   RequestBlock_struct      Request;
 200   ErrDescriptor_struct     ErrDesc;
 201   SGDescriptor_struct      SG[MAXSGENTRIES];
 202         /* information associated with the command */
 203   __u32                    busaddr; /* physical address of this record */
 204   ErrorInfo_struct *       err_info; /* pointer to the allocated mem */
 205   int                      ctlr;
 206   int                      cmd_type;
 207   long                     cmdindex;
 208   struct list_head list;
 209   struct request *         rq;
 210   struct completion *waiting;
 211   int    retry_count;
 212   void * scsi_cmd;
 213   char pad[PADSIZE];
 214 } CommandList_struct;
 215
 216 /* Configuration Table Structure */
 217 typedef struct _HostWrite_struct {
 218   DWORD TransportRequest;
 219   DWORD Reserved;
 220   DWORD CoalIntDelay;
 221   DWORD CoalIntCount;
 222 } HostWrite_struct;
 223
 224 typedef struct _CfgTable_struct {
 225   BYTE             Signature[4];
 226   DWORD            SpecValence;
 227 #define SIMPLE_MODE     0x02
 228 #define PERFORMANT_MODE 0x04
 229 #define MEMQ_MODE       0x08
 230   DWORD            TransportSupport;
 231   DWORD            TransportActive;
 232   HostWrite_struct HostWrite;
 233   DWORD            CmdsOutMax;
 234   DWORD            BusTypes;
 235   DWORD            TransMethodOffset;
 236   BYTE             ServerName[16];
 237   DWORD            HeartBeat;
 238   DWORD            SCSI_Prefetch;
 239   DWORD            MaxSGElements;
 240   DWORD            MaxLogicalUnits;
 241   DWORD            MaxPhysicalDrives;
 242   DWORD            MaxPhysicalDrivesPerLogicalUnit;
 243   DWORD            MaxPerformantModeCommands;
 244   u8               reserved[0x78 - 0x58];
 245   u32              misc_fw_support; /* offset 0x78 */
 246 #define MISC_FW_DOORBELL_RESET (0x02)
 247 #define MISC_FW_DOORBELL_RESET2 (0x10)
 248         u8         driver_version[32];
 249 } CfgTable_struct;
 250
 251 struct TransTable_struct {
 252   u32 BlockFetch0;
 253   u32 BlockFetch1;
 254   u32 BlockFetch2;
 255   u32 BlockFetch3;
 256   u32 BlockFetch4;
 257   u32 BlockFetch5;
 258   u32 BlockFetch6;
 259   u32 BlockFetch7;
 260   u32 RepQSize;
 261   u32 RepQCount;
 262   u32 RepQCtrAddrLow32;
 263   u32 RepQCtrAddrHigh32;
 264   u32 RepQAddr0Low32;
 265   u32 RepQAddr0High32;
 266 };
 267
 268 #pragma pack()
 269 #endif /* CCISS_CMD_H */