drivers/scsi/hpsa_cmd.h

   1 /*
   2  *    Disk Array driver for HP Smart Array SAS controllers
   3  *    Copyright 2000, 2009 Hewlett-Packard Development Company, L.P.
   4  *
   5  *    This program is free software; you can redistribute it and/or modify
   6  *    it under the terms of the GNU General Public License as published by
   7  *    the Free Software Foundation; version 2 of the License.
   8  *
   9  *    This program is distributed in the hope that it will be useful,
  10  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  12  *    NON INFRINGEMENT.  See the GNU General Public License for more details.
  13  *
  14  *    You should have received a copy of the GNU General Public License
  15  *    along with this program; if not, write to the Free Software
  16  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  *
  18  *    Questions/Comments/Bugfixes to iss_storagedev@hp.com
  19  *
  20  */
  21 #ifndef HPSA_CMD_H
  22 #define HPSA_CMD_H
  23
  24 /* general boundary defintions */
  25 #define SENSEINFOBYTES          32 /* may vary between hbas */
  26 #define MAXSGENTRIES            32
  27 #define HPSA_SG_CHAIN           0x80000000
  28 #define MAXREPLYQS              256
  29
  30 /* Command Status value */
  31 #define CMD_SUCCESS             0x0000
  32 #define CMD_TARGET_STATUS       0x0001
  33 #define CMD_DATA_UNDERRUN       0x0002
  34 #define CMD_DATA_OVERRUN        0x0003
  35 #define CMD_INVALID             0x0004
  36 #define CMD_PROTOCOL_ERR        0x0005
  37 #define CMD_HARDWARE_ERR        0x0006
  38 #define CMD_CONNECTION_LOST     0x0007
  39 #define CMD_ABORTED             0x0008
  40 #define CMD_ABORT_FAILED        0x0009
  41 #define CMD_UNSOLICITED_ABORT   0x000A
  42 #define CMD_TIMEOUT             0x000B
  43 #define CMD_UNABORTABLE         0x000C
  44
  45 /* Unit Attentions ASC's as defined for the MSA2012sa */
  46 #define POWER_OR_RESET                  0x29
  47 #define STATE_CHANGED                   0x2a
  48 #define UNIT_ATTENTION_CLEARED          0x2f
  49 #define LUN_FAILED                      0x3e
  50 #define REPORT_LUNS_CHANGED             0x3f
  51
  52 /* Unit Attentions ASCQ's as defined for the MSA2012sa */
  53
  54         /* These ASCQ's defined for ASC = POWER_OR_RESET */
  55 #define POWER_ON_RESET                  0x00
  56 #define POWER_ON_REBOOT                 0x01
  57 #define SCSI_BUS_RESET                  0x02
  58 #define MSA_TARGET_RESET                0x03
  59 #define CONTROLLER_FAILOVER             0x04
  60 #define TRANSCEIVER_SE                  0x05
  61 #define TRANSCEIVER_LVD                 0x06
  62
  63         /* These ASCQ's defined for ASC = STATE_CHANGED */
  64 #define RESERVATION_PREEMPTED           0x03
  65 #define ASYM_ACCESS_CHANGED             0x06
  66 #define LUN_CAPACITY_CHANGED            0x09
  67
  68 /* transfer direction */
  69 #define XFER_NONE               0x00
  70 #define XFER_WRITE              0x01
  71 #define XFER_READ               0x02
  72 #define XFER_RSVD               0x03
  73
  74 /* task attribute */
  75 #define ATTR_UNTAGGED           0x00
  76 #define ATTR_SIMPLE             0x04
  77 #define ATTR_HEADOFQUEUE        0x05
  78 #define ATTR_ORDERED            0x06
  79 #define ATTR_ACA                0x07
  80
  81 /* cdb type */
  82 #define TYPE_CMD                                0x00
  83 #define TYPE_MSG                                0x01
  84
  85 /* config space register offsets */
  86 #define CFG_VENDORID            0x00
  87 #define CFG_DEVICEID            0x02
  88 #define CFG_I2OBAR              0x10
  89 #define CFG_MEM1BAR             0x14
  90
  91 /* i2o space register offsets */
  92 #define I2O_IBDB_SET            0x20
  93 #define I2O_IBDB_CLEAR          0x70
  94 #define I2O_INT_STATUS          0x30
  95 #define I2O_INT_MASK            0x34
  96 #define I2O_IBPOST_Q            0x40
  97 #define I2O_OBPOST_Q            0x44
  98 #define I2O_DMA1_CFG            0x214
  99
 100 /* Configuration Table */
 101 #define CFGTBL_ChangeReq        0x00000001l
 102 #define CFGTBL_AccCmds          0x00000001l
 103 #define DOORBELL_CTLR_RESET     0x00000004l
 104 #define DOORBELL_CTLR_RESET2    0x00000020l
 105
 106 #define CFGTBL_Trans_Simple     0x00000002l
 107 #define CFGTBL_Trans_Performant 0x00000004l
 108 #define CFGTBL_Trans_use_short_tags 0x20000000l
 109
 110 #define CFGTBL_BusType_Ultra2   0x00000001l
 111 #define CFGTBL_BusType_Ultra3   0x00000002l
 112 #define CFGTBL_BusType_Fibre1G  0x00000100l
 113 #define CFGTBL_BusType_Fibre2G  0x00000200l
 114 struct vals32 {
 115         u32   lower;
 116         u32   upper;
 117 };
 118
 119 union u64bit {
 120         struct vals32 val32;
 121         u64 val;
 122 };
 123
 124 /* FIXME this is a per controller value (barf!) */
 125 #define HPSA_MAX_TARGETS_PER_CTLR 16
 126 #define HPSA_MAX_LUN 256
 127 #define HPSA_MAX_PHYS_LUN 1024
 128
 129 /* SCSI-3 Commands */
 130 #pragma pack(1)
 131
 132 #define HPSA_INQUIRY 0x12
 133 struct InquiryData {
 134         u8 data_byte[36];
 135 };
 136
 137 #define HPSA_REPORT_LOG 0xc2    /* Report Logical LUNs */
 138 #define HPSA_REPORT_PHYS 0xc3   /* Report Physical LUNs */
 139 struct ReportLUNdata {
 140         u8 LUNListLength[4];
 141         u32 reserved;
 142         u8 LUN[HPSA_MAX_LUN][8];
 143 };
 144
 145 struct ReportExtendedLUNdata {
 146         u8 LUNListLength[4];
 147         u8 extended_response_flag;
 148         u8 reserved[3];
 149         u8 LUN[HPSA_MAX_LUN][24];
 150 };
 151
 152 struct SenseSubsystem_info {
 153         u8 reserved[36];
 154         u8 portname[8];
 155         u8 reserved1[1108];
 156 };
 157
 158 /* BMIC commands */
 159 #define BMIC_READ 0x26
 160 #define BMIC_WRITE 0x27
 161 #define BMIC_CACHE_FLUSH 0xc2
 162 #define HPSA_CACHE_FLUSH 0x01   /* C2 was already being used by HPSA */
 163
 164 /* Command List Structure */
 165 union SCSI3Addr {
 166         struct {
 167                 u8 Dev;
 168                 u8 Bus:6;
 169                 u8 Mode:2;        /* b00 */
 170         } PeripDev;
 171         struct {
 172                 u8 DevLSB;
 173                 u8 DevMSB:6;
 174                 u8 Mode:2;        /* b01 */
 175         } LogDev;
 176         struct {
 177                 u8 Dev:5;
 178                 u8 Bus:3;
 179                 u8 Targ:6;
 180                 u8 Mode:2;        /* b10 */
 181         } LogUnit;
 182 };
 183
 184 struct PhysDevAddr {
 185         u32             TargetId:24;
 186         u32             Bus:6;
 187         u32             Mode:2;
 188         /* 2 level target device addr */
 189         union SCSI3Addr  Target[2];
 190 };
 191
 192 struct LogDevAddr {
 193         u32            VolId:30;
 194         u32            Mode:2;
 195         u8             reserved[4];
 196 };
 197
 198 union LUNAddr {
 199         u8               LunAddrBytes[8];
 200         union SCSI3Addr    SCSI3Lun[4];
 201         struct PhysDevAddr PhysDev;
 202         struct LogDevAddr  LogDev;
 203 };
 204
 205 struct CommandListHeader {
 206         u8              ReplyQueue;
 207         u8              SGList;
 208         u16             SGTotal;
 209         struct vals32     Tag;
 210         union LUNAddr     LUN;
 211 };
 212
 213 struct RequestBlock {
 214         u8   CDBLen;
 215         struct {
 216                 u8 Type:3;
 217                 u8 Attribute:3;
 218                 u8 Direction:2;
 219         } Type;
 220         u16  Timeout;
 221         u8   CDB[16];
 222 };
 223
 224 struct ErrDescriptor {
 225         struct vals32 Addr;
 226         u32  Len;
 227 };
 228
 229 struct SGDescriptor {
 230         struct vals32 Addr;
 231         u32  Len;
 232         u32  Ext;
 233 };
 234
 235 union MoreErrInfo {
 236         struct {
 237                 u8  Reserved[3];
 238                 u8  Type;
 239                 u32 ErrorInfo;
 240         } Common_Info;
 241         struct {
 242                 u8  Reserved[2];
 243                 u8  offense_size; /* size of offending entry */
 244                 u8  offense_num;  /* byte # of offense 0-base */
 245                 u32 offense_value;
 246         } Invalid_Cmd;
 247 };
 248 struct ErrorInfo {
 249         u8               ScsiStatus;
 250         u8               SenseLen;
 251         u16              CommandStatus;
 252         u32              ResidualCnt;
 253         union MoreErrInfo  MoreErrInfo;
 254         u8               SenseInfo[SENSEINFOBYTES];
 255 };
 256 /* Command types */
 257 #define CMD_IOCTL_PEND  0x01
 258 #define CMD_SCSI        0x03
 259
 260 #define DIRECT_LOOKUP_SHIFT 5
 261 #define DIRECT_LOOKUP_BIT 0x10
 262 #define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
 263
 264 #define HPSA_ERROR_BIT          0x02
 265 struct ctlr_info; /* defined in hpsa.h */
 266 /* The size of this structure needs to be divisible by 32
 267  * on all architectures because low 5 bits of the addresses
 268  * are used as follows:
 269  *
 270  * bit 0: to device, used to indicate "performant mode" command
 271  *        from device, indidcates error status.
 272  * bit 1-3: to device, indicates block fetch table entry for
 273  *          reducing DMA in fetching commands from host memory.
 274  * bit 4: used to indicate whether tag is "direct lookup" (index),
 275  *        or a bus address.
 276  */
 277
 278 struct CommandList {
 279         struct CommandListHeader Header;
 280         struct RequestBlock      Request;
 281         struct ErrDescriptor     ErrDesc;
 282         struct SGDescriptor      SG[MAXSGENTRIES];
 283         /* information associated with the command */
 284         u32                        busaddr; /* physical addr of this record */
 285         struct ErrorInfo *err_info; /* pointer to the allocated mem */
 286         struct ctlr_info           *h;
 287         int                        cmd_type;
 288         long                       cmdindex;
 289         struct list_head list;
 290         struct request *rq;
 291         struct completion *waiting;
 292         void   *scsi_cmd;
 293
 294 /* on 64 bit architectures, to get this to be 32-byte-aligned
 295  * it so happens we need PAD_64 bytes of padding, on 32 bit systems,
 296  * we need PAD_32 bytes of padding (see below).   This does that.
 297  * If it happens that 64 bit and 32 bit systems need different
 298  * padding, PAD_32 and PAD_64 can be set independently, and.
 299  * the code below will do the right thing.
 300  */
 301 #define IS_32_BIT ((8 - sizeof(long))/4)
 302 #define IS_64_BIT (!IS_32_BIT)
 303 #define PAD_32 (4)
 304 #define PAD_64 (4)
 305 #define COMMANDLIST_PAD (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
 306         u8 pad[COMMANDLIST_PAD];
 307 };
 308
 309 /* Configuration Table Structure */
 310 struct HostWrite {
 311         u32 TransportRequest;
 312         u32 Reserved;
 313         u32 CoalIntDelay;
 314         u32 CoalIntCount;
 315 };
 316
 317 #define SIMPLE_MODE     0x02
 318 #define PERFORMANT_MODE 0x04
 319 #define MEMQ_MODE       0x08
 320
 321 struct CfgTable {
 322         u8            Signature[4];
 323         u32             SpecValence;
 324         u32           TransportSupport;
 325         u32           TransportActive;
 326         struct          HostWrite HostWrite;
 327         u32           CmdsOutMax;
 328         u32           BusTypes;
 329         u32           TransMethodOffset;
 330         u8            ServerName[16];
 331         u32           HeartBeat;
 332         u32           SCSI_Prefetch;
 333         u32             MaxScatterGatherElements;
 334         u32             MaxLogicalUnits;
 335         u32             MaxPhysicalDevices;
 336         u32             MaxPhysicalDrivesPerLogicalUnit;
 337         u32             MaxPerformantModeCommands;
 338         u8              reserved[0x78 - 0x58];
 339         u32             misc_fw_support; /* offset 0x78 */
 340 #define                 MISC_FW_DOORBELL_RESET (0x02)
 341 #define                 MISC_FW_DOORBELL_RESET2 (0x010)
 342         u8              driver_version[32];
 343 };
 344
 345 #define NUM_BLOCKFETCH_ENTRIES 8
 346 struct TransTable_struct {
 347         u32            BlockFetch[NUM_BLOCKFETCH_ENTRIES];
 348         u32            RepQSize;
 349         u32            RepQCount;
 350         u32            RepQCtrAddrLow32;
 351         u32            RepQCtrAddrHigh32;
 352         u32            RepQAddr0Low32;
 353         u32            RepQAddr0High32;
 354 };
 355
 356 struct hpsa_pci_info {
 357         unsigned char   bus;
 358         unsigned char   dev_fn;
 359         unsigned short  domain;
 360         u32             board_id;
 361 };
 362
 363 #pragma pack()
 364 #endif /* HPSA_CMD_H */