drivers/scsi/megaraid/megaraid_sas_fusion.h

   1 /*
   2  *  Linux MegaRAID driver for SAS based RAID controllers
   3  *
   4  *  Copyright (c) 2009-2012  LSI Corporation.
   5  *
   6  *  This program is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU General Public License
   8  *  as published by the Free Software Foundation; either version 2
   9  *  of the License, or (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  *
  20  *  FILE: megaraid_sas_fusion.h
  21  *
  22  *  Authors: LSI Corporation
  23  *           Manoj Jose
  24  *           Sumant Patro
  25  *
  26  *  Send feedback to: <megaraidlinux@lsi.com>
  27  *
  28  *  Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035
  29  *     ATTN: Linuxraid
  30  */
  31
  32 #ifndef _MEGARAID_SAS_FUSION_H_
  33 #define _MEGARAID_SAS_FUSION_H_
  34
  35 /* Fusion defines */
  36 #define MEGASAS_MAX_SZ_CHAIN_FRAME 1024
  37 #define MFI_FUSION_ENABLE_INTERRUPT_MASK (0x00000009)
  38 #define MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE 256
  39 #define MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST   0xF0
  40 #define MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST         0xF1
  41 #define MEGASAS_LOAD_BALANCE_FLAG                   0x1
  42 #define MEGASAS_DCMD_MBOX_PEND_FLAG                 0x1
  43 #define HOST_DIAG_WRITE_ENABLE                      0x80
  44 #define HOST_DIAG_RESET_ADAPTER                     0x4
  45 #define MEGASAS_FUSION_MAX_RESET_TRIES              3
  46 #define MAX_MSIX_QUEUES_FUSION                      128
  47
  48 /* Invader defines */
  49 #define MPI2_TYPE_CUDA                              0x2
  50 #define MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH   0x4000
  51 #define MR_RL_FLAGS_GRANT_DESTINATION_CPU0          0x00
  52 #define MR_RL_FLAGS_GRANT_DESTINATION_CPU1          0x10
  53 #define MR_RL_FLAGS_GRANT_DESTINATION_CUDA          0x80
  54 #define MR_RL_FLAGS_SEQ_NUM_ENABLE                  0x8
  55
  56 /* T10 PI defines */
  57 #define MR_PROT_INFO_TYPE_CONTROLLER                0x8
  58 #define MEGASAS_SCSI_VARIABLE_LENGTH_CMD            0x7f
  59 #define MEGASAS_SCSI_SERVICE_ACTION_READ32          0x9
  60 #define MEGASAS_SCSI_SERVICE_ACTION_WRITE32         0xB
  61 #define MEGASAS_SCSI_ADDL_CDB_LEN                   0x18
  62 #define MEGASAS_RD_WR_PROTECT_CHECK_ALL             0x20
  63 #define MEGASAS_RD_WR_PROTECT_CHECK_NONE            0x60
  64
  65 #define MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET   (0x0000030C)
  66 #define MPI2_REPLY_POST_HOST_INDEX_OFFSET       (0x0000006C)
  67
  68 /*
  69  * Raid context flags
  70  */
  71
  72 #define MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT   0x4
  73 #define MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_MASK    0x30
  74 enum MR_RAID_FLAGS_IO_SUB_TYPE {
  75         MR_RAID_FLAGS_IO_SUB_TYPE_NONE = 0,
  76         MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD = 1,
  77 };
  78
  79 /*
  80  * Request descriptor types
  81  */
  82 #define MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO           0x7
  83 #define MEGASAS_REQ_DESCRIPT_FLAGS_MFA             0x1
  84 #define MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK         0x2
  85 #define MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT      1
  86
  87 #define MEGASAS_FP_CMD_LEN      16
  88 #define MEGASAS_FUSION_IN_RESET 0
  89
  90 /*
  91  * Raid Context structure which describes MegaRAID specific IO Parameters
  92  * This resides at offset 0x60 where the SGL normally starts in MPT IO Frames
  93  */
  94
  95 struct RAID_CONTEXT {
  96 #if   defined(__BIG_ENDIAN_BITFIELD)
  97         u8      nseg:4;
  98         u8      Type:4;
  99 #else
 100         u8      Type:4;
 101         u8      nseg:4;
 102 #endif
 103         u8      resvd0;
 104         u16     timeoutValue;
 105         u8      regLockFlags;
 106         u8      resvd1;
 107         u16     VirtualDiskTgtId;
 108         u64     regLockRowLBA;
 109         u32     regLockLength;
 110         u16     nextLMId;
 111         u8      exStatus;
 112         u8      status;
 113         u8      RAIDFlags;
 114         u8      numSGE;
 115         u16     configSeqNum;
 116         u8      spanArm;
 117         u8      resvd2[3];
 118 };
 119
 120 #define RAID_CTX_SPANARM_ARM_SHIFT      (0)
 121 #define RAID_CTX_SPANARM_ARM_MASK       (0x1f)
 122
 123 #define RAID_CTX_SPANARM_SPAN_SHIFT     (5)
 124 #define RAID_CTX_SPANARM_SPAN_MASK      (0xE0)
 125
 126 /*
 127  * define region lock types
 128  */
 129 enum REGION_TYPE {
 130         REGION_TYPE_UNUSED       = 0,
 131         REGION_TYPE_SHARED_READ  = 1,
 132         REGION_TYPE_SHARED_WRITE = 2,
 133         REGION_TYPE_EXCLUSIVE    = 3,
 134 };
 135
 136 /* MPI2 defines */
 137 #define MPI2_FUNCTION_IOC_INIT              (0x02) /* IOC Init */
 138 #define MPI2_WHOINIT_HOST_DRIVER            (0x04)
 139 #define MPI2_VERSION_MAJOR                  (0x02)
 140 #define MPI2_VERSION_MINOR                  (0x00)
 141 #define MPI2_VERSION_MAJOR_MASK             (0xFF00)
 142 #define MPI2_VERSION_MAJOR_SHIFT            (8)
 143 #define MPI2_VERSION_MINOR_MASK             (0x00FF)
 144 #define MPI2_VERSION_MINOR_SHIFT            (0)
 145 #define MPI2_VERSION ((MPI2_VERSION_MAJOR << MPI2_VERSION_MAJOR_SHIFT) | \
 146                       MPI2_VERSION_MINOR)
 147 #define MPI2_HEADER_VERSION_UNIT            (0x10)
 148 #define MPI2_HEADER_VERSION_DEV             (0x00)
 149 #define MPI2_HEADER_VERSION_UNIT_MASK       (0xFF00)
 150 #define MPI2_HEADER_VERSION_UNIT_SHIFT      (8)
 151 #define MPI2_HEADER_VERSION_DEV_MASK        (0x00FF)
 152 #define MPI2_HEADER_VERSION_DEV_SHIFT       (0)
 153 #define MPI2_HEADER_VERSION ((MPI2_HEADER_VERSION_UNIT << 8) | \
 154                              MPI2_HEADER_VERSION_DEV)
 155 #define MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR      (0x03)
 156 #define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG        (0x8000)
 157 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG          (0x0400)
 158 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP       (0x0003)
 159 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG          (0x0200)
 160 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD           (0x0100)
 161 #define MPI2_SCSIIO_EEDPFLAGS_INSERT_OP             (0x0004)
 162 #define MPI2_FUNCTION_SCSI_IO_REQUEST               (0x00) /* SCSI IO */
 163 #define MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY           (0x06)
 164 #define MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO                 (0x00)
 165 #define MPI2_SGE_FLAGS_64_BIT_ADDRESSING        (0x02)
 166 #define MPI2_SCSIIO_CONTROL_WRITE               (0x01000000)
 167 #define MPI2_SCSIIO_CONTROL_READ                (0x02000000)
 168 #define MPI2_REQ_DESCRIPT_FLAGS_TYPE_MASK       (0x0E)
 169 #define MPI2_RPY_DESCRIPT_FLAGS_UNUSED          (0x0F)
 170 #define MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS (0x00)
 171 #define MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK       (0x0F)
 172 #define MPI2_WRSEQ_FLUSH_KEY_VALUE              (0x0)
 173 #define MPI2_WRITE_SEQUENCE_OFFSET              (0x00000004)
 174 #define MPI2_WRSEQ_1ST_KEY_VALUE                (0xF)
 175 #define MPI2_WRSEQ_2ND_KEY_VALUE                (0x4)
 176 #define MPI2_WRSEQ_3RD_KEY_VALUE                (0xB)
 177 #define MPI2_WRSEQ_4TH_KEY_VALUE                (0x2)
 178 #define MPI2_WRSEQ_5TH_KEY_VALUE                (0x7)
 179 #define MPI2_WRSEQ_6TH_KEY_VALUE                (0xD)
 180
 181 struct MPI25_IEEE_SGE_CHAIN64 {
 182         u64                     Address;
 183         u32                     Length;
 184         u16                     Reserved1;
 185         u8                      NextChainOffset;
 186         u8                      Flags;
 187 };
 188
 189 struct MPI2_SGE_SIMPLE_UNION {
 190         u32                     FlagsLength;
 191         union {
 192                 u32                 Address32;
 193                 u64                 Address64;
 194         } u;
 195 };
 196
 197 struct MPI2_SCSI_IO_CDB_EEDP32 {
 198         u8                      CDB[20];                    /* 0x00 */
 199         u32                     PrimaryReferenceTag;        /* 0x14 */
 200         u16                     PrimaryApplicationTag;      /* 0x18 */
 201         u16                     PrimaryApplicationTagMask;  /* 0x1A */
 202         u32                     TransferLength;             /* 0x1C */
 203 };
 204
 205 struct MPI2_SGE_CHAIN_UNION {
 206         u16                     Length;
 207         u8                      NextChainOffset;
 208         u8                      Flags;
 209         union {
 210                 u32                 Address32;
 211                 u64                 Address64;
 212         } u;
 213 };
 214
 215 struct MPI2_IEEE_SGE_SIMPLE32 {
 216         u32                     Address;
 217         u32                     FlagsLength;
 218 };
 219
 220 struct MPI2_IEEE_SGE_CHAIN32 {
 221         u32                     Address;
 222         u32                     FlagsLength;
 223 };
 224
 225 struct MPI2_IEEE_SGE_SIMPLE64 {
 226         u64                     Address;
 227         u32                     Length;
 228         u16                     Reserved1;
 229         u8                      Reserved2;
 230         u8                      Flags;
 231 };
 232
 233 struct MPI2_IEEE_SGE_CHAIN64 {
 234         u64                     Address;
 235         u32                     Length;
 236         u16                     Reserved1;
 237         u8                      Reserved2;
 238         u8                      Flags;
 239 };
 240
 241 union MPI2_IEEE_SGE_SIMPLE_UNION {
 242         struct MPI2_IEEE_SGE_SIMPLE32  Simple32;
 243         struct MPI2_IEEE_SGE_SIMPLE64  Simple64;
 244 };
 245
 246 union MPI2_IEEE_SGE_CHAIN_UNION {
 247         struct MPI2_IEEE_SGE_CHAIN32   Chain32;
 248         struct MPI2_IEEE_SGE_CHAIN64   Chain64;
 249 };
 250
 251 union MPI2_SGE_IO_UNION {
 252         struct MPI2_SGE_SIMPLE_UNION       MpiSimple;
 253         struct MPI2_SGE_CHAIN_UNION        MpiChain;
 254         union MPI2_IEEE_SGE_SIMPLE_UNION  IeeeSimple;
 255         union MPI2_IEEE_SGE_CHAIN_UNION   IeeeChain;
 256 };
 257
 258 union MPI2_SCSI_IO_CDB_UNION {
 259         u8                      CDB32[32];
 260         struct MPI2_SCSI_IO_CDB_EEDP32 EEDP32;
 261         struct MPI2_SGE_SIMPLE_UNION SGE;
 262 };
 263
 264 /*
 265  * RAID SCSI IO Request Message
 266  * Total SGE count will be one less than  _MPI2_SCSI_IO_REQUEST
 267  */
 268 struct MPI2_RAID_SCSI_IO_REQUEST {
 269         u16                     DevHandle;                      /* 0x00 */
 270         u8                      ChainOffset;                    /* 0x02 */
 271         u8                      Function;                       /* 0x03 */
 272         u16                     Reserved1;                      /* 0x04 */
 273         u8                      Reserved2;                      /* 0x06 */
 274         u8                      MsgFlags;                       /* 0x07 */
 275         u8                      VP_ID;                          /* 0x08 */
 276         u8                      VF_ID;                          /* 0x09 */
 277         u16                     Reserved3;                      /* 0x0A */
 278         u32                     SenseBufferLowAddress;          /* 0x0C */
 279         u16                     SGLFlags;                       /* 0x10 */
 280         u8                      SenseBufferLength;              /* 0x12 */
 281         u8                      Reserved4;                      /* 0x13 */
 282         u8                      SGLOffset0;                     /* 0x14 */
 283         u8                      SGLOffset1;                     /* 0x15 */
 284         u8                      SGLOffset2;                     /* 0x16 */
 285         u8                      SGLOffset3;                     /* 0x17 */
 286         u32                     SkipCount;                      /* 0x18 */
 287         u32                     DataLength;                     /* 0x1C */
 288         u32                     BidirectionalDataLength;        /* 0x20 */
 289         u16                     IoFlags;                        /* 0x24 */
 290         u16                     EEDPFlags;                      /* 0x26 */
 291         u32                     EEDPBlockSize;                  /* 0x28 */
 292         u32                     SecondaryReferenceTag;          /* 0x2C */
 293         u16                     SecondaryApplicationTag;        /* 0x30 */
 294         u16                     ApplicationTagTranslationMask;  /* 0x32 */
 295         u8                      LUN[8];                         /* 0x34 */
 296         u32                     Control;                        /* 0x3C */
 297         union MPI2_SCSI_IO_CDB_UNION  CDB;                      /* 0x40 */
 298         struct RAID_CONTEXT     RaidContext;                    /* 0x60 */
 299         union MPI2_SGE_IO_UNION       SGL;                      /* 0x80 */
 300 };
 301
 302 /*
 303  * MPT RAID MFA IO Descriptor.
 304  */
 305 struct MEGASAS_RAID_MFA_IO_REQUEST_DESCRIPTOR {
 306 #if   defined(__BIG_ENDIAN_BITFIELD)
 307         u32     MessageAddress1:24; /* bits 31:8*/
 308         u32     RequestFlags:8;
 309 #else
 310         u32     RequestFlags:8;
 311         u32     MessageAddress1:24; /* bits 31:8*/
 312 #endif
 313         u32     MessageAddress2;      /* bits 61:32 */
 314 };
 315
 316 /* Default Request Descriptor */
 317 struct MPI2_DEFAULT_REQUEST_DESCRIPTOR {
 318         u8              RequestFlags;               /* 0x00 */
 319         u8              MSIxIndex;                  /* 0x01 */
 320         u16             SMID;                       /* 0x02 */
 321         u16             LMID;                       /* 0x04 */
 322         u16             DescriptorTypeDependent;    /* 0x06 */
 323 };
 324
 325 /* High Priority Request Descriptor */
 326 struct MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR {
 327         u8              RequestFlags;               /* 0x00 */
 328         u8              MSIxIndex;                  /* 0x01 */
 329         u16             SMID;                       /* 0x02 */
 330         u16             LMID;                       /* 0x04 */
 331         u16             Reserved1;                  /* 0x06 */
 332 };
 333
 334 /* SCSI IO Request Descriptor */
 335 struct MPI2_SCSI_IO_REQUEST_DESCRIPTOR {
 336         u8              RequestFlags;               /* 0x00 */
 337         u8              MSIxIndex;                  /* 0x01 */
 338         u16             SMID;                       /* 0x02 */
 339         u16             LMID;                       /* 0x04 */
 340         u16             DevHandle;                  /* 0x06 */
 341 };
 342
 343 /* SCSI Target Request Descriptor */
 344 struct MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR {
 345         u8              RequestFlags;               /* 0x00 */
 346         u8              MSIxIndex;                  /* 0x01 */
 347         u16             SMID;                       /* 0x02 */
 348         u16             LMID;                       /* 0x04 */
 349         u16             IoIndex;                    /* 0x06 */
 350 };
 351
 352 /* RAID Accelerator Request Descriptor */
 353 struct MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR {
 354         u8              RequestFlags;               /* 0x00 */
 355         u8              MSIxIndex;                  /* 0x01 */
 356         u16             SMID;                       /* 0x02 */
 357         u16             LMID;                       /* 0x04 */
 358         u16             Reserved;                   /* 0x06 */
 359 };
 360
 361 /* union of Request Descriptors */
 362 union MEGASAS_REQUEST_DESCRIPTOR_UNION {
 363         struct MPI2_DEFAULT_REQUEST_DESCRIPTOR             Default;
 364         struct MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR       HighPriority;
 365         struct MPI2_SCSI_IO_REQUEST_DESCRIPTOR             SCSIIO;
 366         struct MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR         SCSITarget;
 367         struct MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR          RAIDAccelerator;
 368         struct MEGASAS_RAID_MFA_IO_REQUEST_DESCRIPTOR      MFAIo;
 369         union {
 370                 struct {
 371                         u32 low;
 372                         u32 high;
 373                 } u;
 374                 u64 Words;
 375         };
 376 };
 377
 378 /* Default Reply Descriptor */
 379 struct MPI2_DEFAULT_REPLY_DESCRIPTOR {
 380         u8              ReplyFlags;                 /* 0x00 */
 381         u8              MSIxIndex;                  /* 0x01 */
 382         u16             DescriptorTypeDependent1;   /* 0x02 */
 383         u32             DescriptorTypeDependent2;   /* 0x04 */
 384 };
 385
 386 /* Address Reply Descriptor */
 387 struct MPI2_ADDRESS_REPLY_DESCRIPTOR {
 388         u8              ReplyFlags;                 /* 0x00 */
 389         u8              MSIxIndex;                  /* 0x01 */
 390         u16             SMID;                       /* 0x02 */
 391         u32             ReplyFrameAddress;          /* 0x04 */
 392 };
 393
 394 /* SCSI IO Success Reply Descriptor */
 395 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR {
 396         u8              ReplyFlags;                 /* 0x00 */
 397         u8              MSIxIndex;                  /* 0x01 */
 398         u16             SMID;                       /* 0x02 */
 399         u16             TaskTag;                    /* 0x04 */
 400         u16             Reserved1;                  /* 0x06 */
 401 };
 402
 403 /* TargetAssist Success Reply Descriptor */
 404 struct MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR {
 405         u8              ReplyFlags;                 /* 0x00 */
 406         u8              MSIxIndex;                  /* 0x01 */
 407         u16             SMID;                       /* 0x02 */
 408         u8              SequenceNumber;             /* 0x04 */
 409         u8              Reserved1;                  /* 0x05 */
 410         u16             IoIndex;                    /* 0x06 */
 411 };
 412
 413 /* Target Command Buffer Reply Descriptor */
 414 struct MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR {
 415         u8              ReplyFlags;                 /* 0x00 */
 416         u8              MSIxIndex;                  /* 0x01 */
 417         u8              VP_ID;                      /* 0x02 */
 418         u8              Flags;                      /* 0x03 */
 419         u16             InitiatorDevHandle;         /* 0x04 */
 420         u16             IoIndex;                    /* 0x06 */
 421 };
 422
 423 /* RAID Accelerator Success Reply Descriptor */
 424 struct MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR {
 425         u8              ReplyFlags;                 /* 0x00 */
 426         u8              MSIxIndex;                  /* 0x01 */
 427         u16             SMID;                       /* 0x02 */
 428         u32             Reserved;                   /* 0x04 */
 429 };
 430
 431 /* union of Reply Descriptors */
 432 union MPI2_REPLY_DESCRIPTORS_UNION {
 433         struct MPI2_DEFAULT_REPLY_DESCRIPTOR                   Default;
 434         struct MPI2_ADDRESS_REPLY_DESCRIPTOR                   AddressReply;
 435         struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR           SCSIIOSuccess;
 436         struct MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR TargetAssistSuccess;
 437         struct MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR TargetCommandBuffer;
 438         struct MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR
 439         RAIDAcceleratorSuccess;
 440         u64                                             Words;
 441 };
 442
 443 /* IOCInit Request message */
 444 struct MPI2_IOC_INIT_REQUEST {
 445         u8                      WhoInit;                        /* 0x00 */
 446         u8                      Reserved1;                      /* 0x01 */
 447         u8                      ChainOffset;                    /* 0x02 */
 448         u8                      Function;                       /* 0x03 */
 449         u16                     Reserved2;                      /* 0x04 */
 450         u8                      Reserved3;                      /* 0x06 */
 451         u8                      MsgFlags;                       /* 0x07 */
 452         u8                      VP_ID;                          /* 0x08 */
 453         u8                      VF_ID;                          /* 0x09 */
 454         u16                     Reserved4;                      /* 0x0A */
 455         u16                     MsgVersion;                     /* 0x0C */
 456         u16                     HeaderVersion;                  /* 0x0E */
 457         u32                     Reserved5;                      /* 0x10 */
 458         u16                     Reserved6;                      /* 0x14 */
 459         u8                      Reserved7;                      /* 0x16 */
 460         u8                      HostMSIxVectors;                /* 0x17 */
 461         u16                     Reserved8;                      /* 0x18 */
 462         u16                     SystemRequestFrameSize;         /* 0x1A */
 463         u16                     ReplyDescriptorPostQueueDepth;  /* 0x1C */
 464         u16                     ReplyFreeQueueDepth;            /* 0x1E */
 465         u32                     SenseBufferAddressHigh;         /* 0x20 */
 466         u32                     SystemReplyAddressHigh;         /* 0x24 */
 467         u64                     SystemRequestFrameBaseAddress;  /* 0x28 */
 468         u64                     ReplyDescriptorPostQueueAddress;/* 0x30 */
 469         u64                     ReplyFreeQueueAddress;          /* 0x38 */
 470         u64                     TimeStamp;                      /* 0x40 */
 471 };
 472
 473 /* mrpriv defines */
 474 #define MR_PD_INVALID 0xFFFF
 475 #define MAX_SPAN_DEPTH 8
 476 #define MAX_QUAD_DEPTH  MAX_SPAN_DEPTH
 477 #define MAX_RAIDMAP_SPAN_DEPTH (MAX_SPAN_DEPTH)
 478 #define MAX_ROW_SIZE 32
 479 #define MAX_RAIDMAP_ROW_SIZE (MAX_ROW_SIZE)
 480 #define MAX_LOGICAL_DRIVES 64
 481 #define MAX_RAIDMAP_LOGICAL_DRIVES (MAX_LOGICAL_DRIVES)
 482 #define MAX_RAIDMAP_VIEWS (MAX_LOGICAL_DRIVES)
 483 #define MAX_ARRAYS 128
 484 #define MAX_RAIDMAP_ARRAYS (MAX_ARRAYS)
 485 #define MAX_PHYSICAL_DEVICES 256
 486 #define MAX_RAIDMAP_PHYSICAL_DEVICES (MAX_PHYSICAL_DEVICES)
 487 #define MR_DCMD_LD_MAP_GET_INFO             0x0300e101
 488
 489 struct MR_DEV_HANDLE_INFO {
 490         u16     curDevHdl;
 491         u8      validHandles;
 492         u8      reserved;
 493         u16     devHandle[2];
 494 };
 495
 496 struct MR_ARRAY_INFO {
 497         u16      pd[MAX_RAIDMAP_ROW_SIZE];
 498 };
 499
 500 struct MR_QUAD_ELEMENT {
 501         u64     logStart;
 502         u64     logEnd;
 503         u64     offsetInSpan;
 504         u32     diff;
 505         u32     reserved1;
 506 };
 507
 508 struct MR_SPAN_INFO {
 509         u32             noElements;
 510         u32             reserved1;
 511         struct MR_QUAD_ELEMENT quad[MAX_RAIDMAP_SPAN_DEPTH];
 512 };
 513
 514 struct MR_LD_SPAN {
 515         u64      startBlk;
 516         u64      numBlks;
 517         u16      arrayRef;
 518         u8       spanRowSize;
 519         u8       spanRowDataSize;
 520         u8       reserved[4];
 521 };
 522
 523 struct MR_SPAN_BLOCK_INFO {
 524         u64          num_rows;
 525         struct MR_LD_SPAN   span;
 526         struct MR_SPAN_INFO block_span_info;
 527 };
 528
 529 struct MR_LD_RAID {
 530         struct {
 531 #if   defined(__BIG_ENDIAN_BITFIELD)
 532                 u32     reserved4:7;
 533                 u32     fpNonRWCapable:1;
 534                 u32     fpReadAcrossStripe:1;
 535                 u32     fpWriteAcrossStripe:1;
 536                 u32     fpReadCapable:1;
 537                 u32     fpWriteCapable:1;
 538                 u32     encryptionType:8;
 539                 u32     pdPiMode:4;
 540                 u32     ldPiMode:4;
 541                 u32     reserved5:3;
 542                 u32     fpCapable:1;
 543 #else
 544                 u32     fpCapable:1;
 545                 u32     reserved5:3;
 546                 u32     ldPiMode:4;
 547                 u32     pdPiMode:4;
 548                 u32     encryptionType:8;
 549                 u32     fpWriteCapable:1;
 550                 u32     fpReadCapable:1;
 551                 u32     fpWriteAcrossStripe:1;
 552                 u32     fpReadAcrossStripe:1;
 553                 u32     fpNonRWCapable:1;
 554                 u32     reserved4:7;
 555 #endif
 556         } capability;
 557         u32     reserved6;
 558         u64     size;
 559         u8      spanDepth;
 560         u8      level;
 561         u8      stripeShift;
 562         u8      rowSize;
 563         u8      rowDataSize;
 564         u8      writeMode;
 565         u8      PRL;
 566         u8      SRL;
 567         u16     targetId;
 568         u8      ldState;
 569         u8      regTypeReqOnWrite;
 570         u8      modFactor;
 571         u8      regTypeReqOnRead;
 572         u16     seqNum;
 573
 574         struct {
 575                 u32 ldSyncRequired:1;
 576                 u32 reserved:31;
 577         } flags;
 578
 579         u8      LUN[8]; /* 0x24 8 byte LUN field used for SCSI IO's */
 580         u8      fpIoTimeoutForLd;/*0x2C timeout value used by driver in FP IO*/
 581         u8      reserved3[0x80-0x2D]; /* 0x2D */
 582 };
 583
 584 struct MR_LD_SPAN_MAP {
 585         struct MR_LD_RAID          ldRaid;
 586         u8                  dataArmMap[MAX_RAIDMAP_ROW_SIZE];
 587         struct MR_SPAN_BLOCK_INFO  spanBlock[MAX_RAIDMAP_SPAN_DEPTH];
 588 };
 589
 590 struct MR_FW_RAID_MAP {
 591         u32                 totalSize;
 592         union {
 593                 struct {
 594                         u32         maxLd;
 595                         u32         maxSpanDepth;
 596                         u32         maxRowSize;
 597                         u32         maxPdCount;
 598                         u32         maxArrays;
 599                 } validationInfo;
 600                 u32             version[5];
 601                 u32             reserved1[5];
 602         };
 603
 604         u32                 ldCount;
 605         u32                 Reserved1;
 606         u8                  ldTgtIdToLd[MAX_RAIDMAP_LOGICAL_DRIVES+
 607                                         MAX_RAIDMAP_VIEWS];
 608         u8                  fpPdIoTimeoutSec;
 609         u8                  reserved2[7];
 610         struct MR_ARRAY_INFO       arMapInfo[MAX_RAIDMAP_ARRAYS];
 611         struct MR_DEV_HANDLE_INFO  devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES];
 612         struct MR_LD_SPAN_MAP      ldSpanMap[1];
 613 };
 614
 615 struct IO_REQUEST_INFO {
 616         u64 ldStartBlock;
 617         u32 numBlocks;
 618         u16 ldTgtId;
 619         u8 isRead;
 620         u16 devHandle;
 621         u64 pdBlock;
 622         u8 fpOkForIo;
 623         u8 IoforUnevenSpan;
 624         u8 start_span;
 625         u8 reserved;
 626         u64 start_row;
 627 };
 628
 629 struct MR_LD_TARGET_SYNC {
 630         u8  targetId;
 631         u8  reserved;
 632         u16 seqNum;
 633 };
 634
 635 #define IEEE_SGE_FLAGS_ADDR_MASK            (0x03)
 636 #define IEEE_SGE_FLAGS_SYSTEM_ADDR          (0x00)
 637 #define IEEE_SGE_FLAGS_IOCDDR_ADDR          (0x01)
 638 #define IEEE_SGE_FLAGS_IOCPLB_ADDR          (0x02)
 639 #define IEEE_SGE_FLAGS_IOCPLBNTA_ADDR       (0x03)
 640 #define IEEE_SGE_FLAGS_CHAIN_ELEMENT        (0x80)
 641 #define IEEE_SGE_FLAGS_END_OF_LIST          (0x40)
 642
 643 struct megasas_register_set;
 644 struct megasas_instance;
 645
 646 union desc_word {
 647         u64 word;
 648         struct {
 649                 u32 low;
 650                 u32 high;
 651         } u;
 652 };
 653
 654 struct megasas_cmd_fusion {
 655         struct MPI2_RAID_SCSI_IO_REQUEST        *io_request;
 656         dma_addr_t                      io_request_phys_addr;
 657
 658         union MPI2_SGE_IO_UNION *sg_frame;
 659         dma_addr_t              sg_frame_phys_addr;
 660
 661         u8 *sense;
 662         dma_addr_t sense_phys_addr;
 663
 664         struct list_head list;
 665         struct scsi_cmnd *scmd;
 666         struct megasas_instance *instance;
 667
 668         u8 retry_for_fw_reset;
 669         union MEGASAS_REQUEST_DESCRIPTOR_UNION  *request_desc;
 670
 671         /*
 672          * Context for a MFI frame.
 673          * Used to get the mfi cmd from list when a MFI cmd is completed
 674          */
 675         u32 sync_cmd_idx;
 676         u32 index;
 677         u8 flags;
 678 };
 679
 680 struct LD_LOAD_BALANCE_INFO {
 681         u8      loadBalanceFlag;
 682         u8      reserved1;
 683         u16     raid1DevHandle[2];
 684         atomic_t     scsi_pending_cmds[2];
 685         u64     last_accessed_block[2];
 686 };
 687
 688 /* SPAN_SET is info caclulated from span info from Raid map per LD */
 689 typedef struct _LD_SPAN_SET {
 690         u64  log_start_lba;
 691         u64  log_end_lba;
 692         u64  span_row_start;
 693         u64  span_row_end;
 694         u64  data_strip_start;
 695         u64  data_strip_end;
 696         u64  data_row_start;
 697         u64  data_row_end;
 698         u8   strip_offset[MAX_SPAN_DEPTH];
 699         u32    span_row_data_width;
 700         u32    diff;
 701         u32    reserved[2];
 702 } LD_SPAN_SET, *PLD_SPAN_SET;
 703
 704 typedef struct LOG_BLOCK_SPAN_INFO {
 705         LD_SPAN_SET  span_set[MAX_SPAN_DEPTH];
 706 } LD_SPAN_INFO, *PLD_SPAN_INFO;
 707
 708 struct MR_FW_RAID_MAP_ALL {
 709         struct MR_FW_RAID_MAP raidMap;
 710         struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES - 1];
 711 } __attribute__ ((packed));
 712
 713 struct fusion_context {
 714         struct megasas_cmd_fusion **cmd_list;
 715         struct list_head cmd_pool;
 716
 717         spinlock_t cmd_pool_lock;
 718
 719         dma_addr_t req_frames_desc_phys;
 720         u8 *req_frames_desc;
 721
 722         struct dma_pool *io_request_frames_pool;
 723         dma_addr_t io_request_frames_phys;
 724         u8 *io_request_frames;
 725
 726         struct dma_pool *sg_dma_pool;
 727         struct dma_pool *sense_dma_pool;
 728
 729         dma_addr_t reply_frames_desc_phys;
 730         union MPI2_REPLY_DESCRIPTORS_UNION *reply_frames_desc;
 731         struct dma_pool *reply_frames_desc_pool;
 732
 733         u16 last_reply_idx[MAX_MSIX_QUEUES_FUSION];
 734
 735         u32 reply_q_depth;
 736         u32 request_alloc_sz;
 737         u32 reply_alloc_sz;
 738         u32 io_frames_alloc_sz;
 739
 740         u16     max_sge_in_main_msg;
 741         u16     max_sge_in_chain;
 742
 743         u8      chain_offset_io_request;
 744         u8      chain_offset_mfi_pthru;
 745
 746         struct MR_FW_RAID_MAP_ALL *ld_map[2];
 747         dma_addr_t ld_map_phys[2];
 748
 749         u32 map_sz;
 750         u8 fast_path_io;
 751         struct LD_LOAD_BALANCE_INFO load_balance_info[MAX_LOGICAL_DRIVES];
 752         LD_SPAN_INFO log_to_span[MAX_LOGICAL_DRIVES];
 753 };
 754
 755 union desc_value {
 756         u64 word;
 757         struct {
 758                 u32 low;
 759                 u32 high;
 760         } u;
 761 };
 762
 763 #endif /* _MEGARAID_SAS_FUSION_H_ */