1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2017 Nexenta Systems, Inc. All rights reserved.
  25  * Copyright (c) 2017, Joyent, Inc.
  26  * Copyright (c) 2014, Tegile Systems Inc. All rights reserved.
  27  */
  28 
  29 /*
  30  * Copyright (c) 2000 to 2010, LSI Corporation.
  31  * All rights reserved.
  32  *
  33  * Redistribution and use in source and binary forms of all code within
  34  * this file that is exclusively owned by LSI, with or without
  35  * modification, is permitted provided that, in addition to the CDDL 1.0
  36  * License requirements, the following conditions are met:
  37  *
  38  *    Neither the name of the author nor the names of its contributors may be
  39  *    used to endorse or promote products derived from this software without
  40  *    specific prior written permission.
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  43  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  44  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  45  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  46  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  47  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  48  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  49  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  50  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  51  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  52  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  53  * DAMAGE.
  54  */
  55 
  56 #ifndef _SYS_SCSI_ADAPTERS_MPTVAR_H
  57 #define _SYS_SCSI_ADAPTERS_MPTVAR_H
  58 
  59 #include <sys/byteorder.h>
  60 #include <sys/queue.h>
  61 #include <sys/isa_defs.h>
  62 #include <sys/sunmdi.h>
  63 #include <sys/mdi_impldefs.h>
  64 #include <sys/scsi/adapters/mpt_sas/mptsas_hash.h>
  65 #include <sys/scsi/adapters/mpt_sas/mptsas_ioctl.h>
  66 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_tool.h>
  67 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_cnfg.h>
  68 
  69 #ifdef  __cplusplus
  70 extern "C" {
  71 #endif
  72 
  73 /*
  74  * Compile options
  75  */
  76 #ifdef DEBUG
  77 #define MPTSAS_DEBUG            /* turn on debugging code */
  78 #endif  /* DEBUG */
  79 
  80 
  81 #if defined(DEBUG) || lint
  82 #define MPTSAS_FAULTINJECTION
  83 #endif
  84 
  85 #define MPTSAS_INITIAL_SOFT_SPACE       4
  86 
  87 /*
  88  * Note below macro definition and data type definition
  89  * are used for phy mask handling, it should be changed
  90  * simultaneously.
  91  */
  92 #define MPTSAS_MAX_PHYS         24
  93 typedef uint32_t                mptsas_phymask_t;
  94 
  95 #define MPTSAS_INVALID_DEVHDL   0xffff
  96 #define MPTSAS_SATA_GUID        "sata-guid"
  97 
  98 /*
  99  * Hash table sizes for SMP targets (i.e., expanders) and ordinary SSP/STP
 100  * targets.  There's no need to go overboard here, as the ordinary paths for
 101  * I/O do not normally require hashed target lookups.  These should be good
 102  * enough and then some for any fabric within the hardware's capabilities.
 103  */
 104 #define MPTSAS_SMP_BUCKET_COUNT         23
 105 #define MPTSAS_TARGET_BUCKET_COUNT      97
 106 #define MPTSAS_TMP_TARGET_BUCKET_COUNT  13
 107 
 108 /*
 109  * MPT HW defines
 110  */
 111 #define MPTSAS_MAX_DISKS_IN_CONFIG      14
 112 #define MPTSAS_MAX_DISKS_IN_VOL         10
 113 #define MPTSAS_MAX_HOTSPARES            2
 114 #define MPTSAS_MAX_RAIDVOLS             2
 115 #define MPTSAS_MAX_RAIDCONFIGS          5
 116 
 117 /*
 118  * 64-bit SAS WWN is displayed as 16 characters as HEX characters,
 119  * plus two means the prefix 'w' and end of the string '\0'.
 120  */
 121 #define MPTSAS_WWN_STRLEN       (16 + 2)
 122 #define MPTSAS_MAX_GUID_LEN     64
 123 
 124 /*
 125  * DMA routine flags
 126  */
 127 #define MPTSAS_DMA_HANDLE_ALLOCD        0x2
 128 #define MPTSAS_DMA_MEMORY_ALLOCD        0x4
 129 #define MPTSAS_DMA_HANDLE_BOUND 0x8
 130 
 131 /*
 132  * If the HBA supports DMA or bus-mastering, you may have your own
 133  * scatter-gather list for physically non-contiguous memory in one
 134  * I/O operation; if so, there's probably a size for that list.
 135  * It must be placed in the ddi_dma_lim_t structure, so that the system
 136  * DMA-support routines can use it to break up the I/O request, so we
 137  * define it here.
 138  */
 139 #if defined(__sparc)
 140 #define MPTSAS_MAX_DMA_SEGS     1
 141 #define MPTSAS_MAX_CMD_SEGS     1
 142 #else
 143 #define MPTSAS_MAX_DMA_SEGS     256
 144 #define MPTSAS_MAX_CMD_SEGS     257
 145 #endif
 146 #define MPTSAS_MAX_FRAME_SGES(mpt) \
 147         (((mpt->m_req_frame_size - (sizeof (MPI2_SCSI_IO_REQUEST))) / 8) + 1)
 148 
 149 #define MPTSAS_SGE_SIZE(mpt)                                    \
 150         ((mpt)->m_MPI25 ? sizeof (MPI2_IEEE_SGE_SIMPLE64) :  \
 151             sizeof (MPI2_SGE_SIMPLE64))
 152 
 153 /*
 154  * Calculating how many 64-bit DMA simple elements can be stored in the first
 155  * frame. Note that msg_scsi_io_request contains 2 double-words (8 bytes) for
 156  * element storage.  And 64-bit dma element is 3 double-words (12 bytes) in
 157  * size. IEEE 64-bit dma element used for SAS3 controllers is 4 double-words
 158  * (16 bytes).
 159  */
 160 #define MPTSAS_MAX_FRAME_SGES64(mpt) \
 161         ((mpt->m_req_frame_size - \
 162         sizeof (MPI2_SCSI_IO_REQUEST) + sizeof (MPI2_SGE_IO_UNION)) / \
 163         MPTSAS_SGE_SIZE(mpt))
 164 
 165 /*
 166  * Scatter-gather list structure defined by HBA hardware
 167  */
 168 typedef struct NcrTableIndirect {       /* Table Indirect entries */
 169         uint32_t count;         /* 24 bit count */
 170         union {
 171                 uint32_t address32;     /* 32 bit address */
 172                 struct {
 173                         uint32_t Low;
 174                         uint32_t High;
 175                 } address64;            /* 64 bit address */
 176         } addr;
 177 } mptti_t;
 178 
 179 /*
 180  * preferred pkt_private length in 64-bit quantities
 181  */
 182 #ifdef  _LP64
 183 #define PKT_PRIV_SIZE   2
 184 #define PKT_PRIV_LEN    16      /* in bytes */
 185 #else /* _ILP32 */
 186 #define PKT_PRIV_SIZE   1
 187 #define PKT_PRIV_LEN    8       /* in bytes */
 188 #endif
 189 
 190 #define PKT2CMD(pkt)    ((struct mptsas_cmd *)((pkt)->pkt_ha_private))
 191 #define CMD2PKT(cmdp)   ((struct scsi_pkt *)((cmdp)->cmd_pkt))
 192 #define EXTCMDS_STATUS_SIZE (sizeof (struct scsi_arq_status))
 193 
 194 /*
 195  * get offset of item in structure
 196  */
 197 #define MPTSAS_GET_ITEM_OFF(type, member) ((size_t)(&((type *)0)->member))
 198 
 199 /*
 200  * WWID provided by LSI firmware is generated by firmware but the WWID is not
 201  * IEEE NAA standard format, OBP has no chance to distinguish format of unit
 202  * address. According LSI's confirmation, the top nibble of RAID WWID is
 203  * meanless, so the consensus between Solaris and OBP is to replace top nibble
 204  * of WWID provided by LSI to "3" always to hint OBP that this is a RAID WWID
 205  * format unit address.
 206  */
 207 #define MPTSAS_RAID_WWID(wwid) \
 208         ((wwid & 0x0FFFFFFFFFFFFFFF) | 0x3000000000000000)
 209 
 210 TAILQ_HEAD(mptsas_active_cmdq, mptsas_cmd);
 211 typedef struct mptsas_active_cmdq mptsas_active_cmdq_t;
 212 
 213 typedef struct mptsas_target_addr {
 214         uint64_t mta_wwn;
 215         mptsas_phymask_t mta_phymask;
 216 } mptsas_target_addr_t;
 217 
 218 typedef struct mptsas_target {
 219                 mptsas_target_addr_t    m_addr;
 220                 refhash_link_t          m_link;
 221                 uint8_t                 m_dr_flag;
 222                 uint16_t                m_devhdl;
 223                 uint32_t                m_deviceinfo;
 224                 uint8_t                 m_phynum;
 225                 uint32_t                m_dups;
 226                 mptsas_active_cmdq_t    m_active_cmdq;
 227                 int32_t                 m_t_throttle;
 228                 int32_t                 m_t_ncmds;
 229                 int32_t                 m_reset_delay;
 230                 int32_t                 m_t_nwait;
 231 
 232                 uint16_t                m_qfull_retry_interval;
 233                 uint8_t                 m_qfull_retries;
 234                 uint16_t                m_io_flags;
 235                 uint16_t                m_enclosure;
 236                 uint16_t                m_slot_num;
 237                 uint32_t                m_tgt_unconfigured;
 238 } mptsas_target_t;
 239 
 240 /*
 241  * If you change this structure, be sure that mptsas_smp_target_copy()
 242  * does the right thing.
 243  */
 244 typedef struct mptsas_smp {
 245         mptsas_target_addr_t    m_addr;
 246         refhash_link_t          m_link;
 247         uint16_t                m_devhdl;
 248         uint32_t                m_deviceinfo;
 249         uint16_t                m_pdevhdl;
 250         uint32_t                m_pdevinfo;
 251 } mptsas_smp_t;
 252 
 253 /*
 254  * This represents a single enclosure. Targets point to an enclosure through
 255  * their m_enclosure member.
 256  */
 257 typedef struct mptsas_enclosure {
 258         list_node_t     me_link;
 259         uint16_t        me_enchdl;
 260         uint16_t        me_flags;
 261         uint16_t        me_nslots;
 262         uint16_t        me_fslot;
 263         uint8_t         *me_slotleds;
 264 } mptsas_enclosure_t;
 265 
 266 typedef struct mptsas_cache_frames {
 267         ddi_dma_handle_t m_dma_hdl;
 268         ddi_acc_handle_t m_acc_hdl;
 269         caddr_t m_frames_addr;
 270         uint64_t m_phys_addr;
 271 } mptsas_cache_frames_t;
 272 
 273 typedef struct  mptsas_cmd {
 274         uint_t                  cmd_flags;      /* flags from scsi_init_pkt */
 275         ddi_dma_handle_t        cmd_dmahandle;  /* dma handle */
 276         ddi_dma_cookie_t        cmd_cookie;
 277         uint_t                  cmd_cookiec;
 278         uint_t                  cmd_winindex;
 279         uint_t                  cmd_nwin;
 280         uint_t                  cmd_cur_cookie;
 281         off_t                   cmd_dma_offset;
 282         size_t                  cmd_dma_len;
 283         uint32_t                cmd_totaldmacount;
 284         caddr_t                 cmd_arq_buf;
 285 
 286         int                     cmd_pkt_flags;
 287 
 288         /* pending expiration time for command in active slot */
 289         hrtime_t                cmd_active_expiration;
 290         TAILQ_ENTRY(mptsas_cmd) cmd_active_link;
 291 
 292         struct scsi_pkt         *cmd_pkt;
 293         struct scsi_arq_status  cmd_scb;
 294         uchar_t                 cmd_cdblen;     /* length of cdb */
 295         uchar_t                 cmd_rqslen;     /* len of requested rqsense */
 296         uchar_t                 cmd_privlen;
 297         uint16_t                cmd_extrqslen;  /* len of extended rqsense */
 298         uint16_t                cmd_extrqschunks; /* len in map chunks */
 299         uint16_t                cmd_extrqsidx;  /* Index into map */
 300         uint_t                  cmd_scblen;
 301         uint32_t                cmd_dmacount;
 302         uint64_t                cmd_dma_addr;
 303         uchar_t                 cmd_age;
 304         ushort_t                cmd_qfull_retries;
 305         uchar_t                 cmd_queued;     /* true if queued */
 306         struct mptsas_cmd       *cmd_linkp;
 307         mptti_t                 *cmd_sg; /* Scatter/Gather structure */
 308         uchar_t                 cmd_cdb[SCSI_CDB_SIZE];
 309         uint64_t                cmd_pkt_private[PKT_PRIV_LEN];
 310         uint32_t                cmd_slot;
 311         uint32_t                ioc_cmd_slot;
 312 
 313         mptsas_cache_frames_t   *cmd_extra_frames;
 314 
 315         uint32_t                cmd_rfm;
 316         mptsas_target_t         *cmd_tgt_addr;
 317 } mptsas_cmd_t;
 318 
 319 /*
 320  * These are the defined cmd_flags for this structure.
 321  */
 322 #define CFLAG_CMDDISC           0x000001 /* cmd currently disconnected */
 323 #define CFLAG_WATCH             0x000002 /* watchdog time for this command */
 324 #define CFLAG_FINISHED          0x000004 /* command completed */
 325 #define CFLAG_CHKSEG            0x000008 /* check cmd_data within seg */
 326 #define CFLAG_COMPLETED         0x000010 /* completion routine called */
 327 #define CFLAG_PREPARED          0x000020 /* pkt has been init'ed */
 328 #define CFLAG_IN_TRANSPORT      0x000040 /* in use by host adapter driver */
 329 #define CFLAG_RESTORE_PTRS      0x000080 /* implicit restore ptr on reconnect */
 330 #define CFLAG_ARQ_IN_PROGRESS   0x000100 /* auto request sense in progress */
 331 #define CFLAG_TRANFLAG          0x0001ff /* covers transport part of flags */
 332 #define CFLAG_TM_CMD            0x000200 /* cmd is a task management command */
 333 #define CFLAG_CMDARQ            0x000400 /* cmd is a 'rqsense' command */
 334 #define CFLAG_DMAVALID          0x000800 /* dma mapping valid */
 335 #define CFLAG_DMASEND           0x001000 /* data is going 'out' */
 336 #define CFLAG_CMDIOPB           0x002000 /* this is an 'iopb' packet */
 337 #define CFLAG_CDBEXTERN         0x004000 /* cdb kmem_alloc'd */
 338 #define CFLAG_SCBEXTERN         0x008000 /* scb kmem_alloc'd */
 339 #define CFLAG_FREE              0x010000 /* packet is on free list */
 340 #define CFLAG_PRIVEXTERN        0x020000 /* target private kmem_alloc'd */
 341 #define CFLAG_DMA_PARTIAL       0x040000 /* partial xfer OK */
 342 #define CFLAG_QFULL_STATUS      0x080000 /* pkt got qfull status */
 343 #define CFLAG_TIMEOUT           0x100000 /* passthru/config command timeout */
 344 #define CFLAG_PMM_RECEIVED      0x200000 /* use cmd_pmm* for saving pointers */
 345 #define CFLAG_RETRY             0x400000 /* cmd has been retried */
 346 #define CFLAG_CMDIOC            0x800000 /* cmd is just for for ioc, no io */
 347 #define CFLAG_PASSTHRU          0x2000000 /* cmd is a passthrough command */
 348 #define CFLAG_XARQ              0x4000000 /* cmd requests for extra sense */
 349 #define CFLAG_CMDACK            0x8000000 /* cmd for event ack */
 350 #define CFLAG_TXQ               0x10000000 /* cmd queued in the tx_waitq */
 351 #define CFLAG_FW_CMD            0x20000000 /* cmd is a fw up/down command */
 352 #define CFLAG_CONFIG            0x40000000 /* cmd is for config header/page */
 353 #define CFLAG_FW_DIAG           0x80000000 /* cmd is for FW diag buffers */
 354 
 355 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_SIZE                     8
 356 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_MASK                     0xC0
 357 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_PERIPHERAL                       0x00
 358 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_FLAT_SPACE                       0x40
 359 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT             0x80
 360 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_EXTENDED_UNIT            0xC0
 361 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT_2B          0x00
 362 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT_4B          0x01
 363 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT_6B          0x10
 364 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT_8B          0x20
 365 #define MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT_SIZE                0x30
 366 
 367 #define MPTSAS_HASH_ARRAY_SIZE  16
 368 /*
 369  * hash table definition
 370  */
 371 
 372 #define MPTSAS_HASH_FIRST       0xffff
 373 #define MPTSAS_HASH_NEXT        0x0000
 374 
 375 typedef struct mptsas_dma_alloc_state
 376 {
 377         ddi_dma_handle_t        handle;
 378         caddr_t                 memp;
 379         size_t                  size;
 380         ddi_acc_handle_t        accessp;
 381         ddi_dma_cookie_t        cookie;
 382 } mptsas_dma_alloc_state_t;
 383 
 384 /*
 385  * passthrough request structure
 386  */
 387 typedef struct mptsas_pt_request {
 388         uint8_t *request;
 389         uint32_t request_size;
 390         uint32_t data_size;
 391         uint32_t dataout_size;
 392         uint32_t direction;
 393         uint8_t simple;
 394         uint16_t sgl_offset;
 395         ddi_dma_cookie_t data_cookie;
 396         ddi_dma_cookie_t dataout_cookie;
 397 } mptsas_pt_request_t;
 398 
 399 /*
 400  * config page request structure
 401  */
 402 typedef struct mptsas_config_request {
 403         uint32_t        page_address;
 404         uint8_t         action;
 405         uint8_t         page_type;
 406         uint8_t         page_number;
 407         uint8_t         page_length;
 408         uint8_t         page_version;
 409         uint8_t         ext_page_type;
 410         uint16_t        ext_page_length;
 411 } mptsas_config_request_t;
 412 
 413 typedef struct mptsas_fw_diagnostic_buffer {
 414         mptsas_dma_alloc_state_t        buffer_data;
 415         uint8_t                         extended_type;
 416         uint8_t                         buffer_type;
 417         uint8_t                         force_release;
 418         uint32_t                        product_specific[23];
 419         uint8_t                         immediate;
 420         uint8_t                         enabled;
 421         uint8_t                         valid_data;
 422         uint8_t                         owned_by_firmware;
 423         uint32_t                        unique_id;
 424 } mptsas_fw_diagnostic_buffer_t;
 425 
 426 /*
 427  * FW diag request structure
 428  */
 429 typedef struct mptsas_diag_request {
 430         mptsas_fw_diagnostic_buffer_t   *pBuffer;
 431         uint8_t                         function;
 432 } mptsas_diag_request_t;
 433 
 434 typedef struct mptsas_hash_node {
 435         void *data;
 436         struct mptsas_hash_node *next;
 437 } mptsas_hash_node_t;
 438 
 439 typedef struct mptsas_hash_table {
 440         struct mptsas_hash_node *head[MPTSAS_HASH_ARRAY_SIZE];
 441         /*
 442          * last position in traverse
 443          */
 444         struct mptsas_hash_node *cur;
 445         uint16_t line;
 446 
 447 } mptsas_hash_table_t;
 448 
 449 /*
 450  * RAID volume information
 451  */
 452 typedef struct mptsas_raidvol {
 453         ushort_t        m_israid;
 454         uint16_t        m_raidhandle;
 455         uint64_t        m_raidwwid;
 456         uint8_t         m_state;
 457         uint32_t        m_statusflags;
 458         uint32_t        m_settings;
 459         uint16_t        m_devhdl[MPTSAS_MAX_DISKS_IN_VOL];
 460         uint8_t         m_disknum[MPTSAS_MAX_DISKS_IN_VOL];
 461         ushort_t        m_diskstatus[MPTSAS_MAX_DISKS_IN_VOL];
 462         uint64_t        m_raidsize;
 463         int             m_raidlevel;
 464         int             m_ndisks;
 465         mptsas_target_t *m_raidtgt;
 466 } mptsas_raidvol_t;
 467 
 468 /*
 469  * RAID configurations
 470  */
 471 typedef struct mptsas_raidconfig {
 472                 mptsas_raidvol_t        m_raidvol[MPTSAS_MAX_RAIDVOLS];
 473                 uint16_t                m_physdisk_devhdl[
 474                                             MPTSAS_MAX_DISKS_IN_CONFIG];
 475                 uint8_t                 m_native;
 476 } m_raidconfig_t;
 477 
 478 /*
 479  * Track outstanding commands.  The index into the m_slot array is the SMID
 480  * (system message ID) of the outstanding command.  SMID 0 is reserved by the
 481  * software/firmware protocol and is never used for any command we generate;
 482  * as such, the assertion m_slot[0] == NULL is universally true.  The last
 483  * entry in the array is slot number MPTSAS_TM_SLOT(mpt) and is used ONLY for
 484  * task management commands.  No normal SCSI or ATA command will ever occupy
 485  * that slot.  Finally, the relationship m_slot[X]->cmd_slot == X holds at any
 486  * time that a consistent view of the target array is obtainable.
 487  *
 488  * As such, m_n_normal is the maximum number of slots available to ordinary
 489  * commands, and the relationship:
 490  * mpt->m_active->m_n_normal == mpt->m_max_requests - 2
 491  * always holds after initialisation.
 492  */
 493 typedef struct mptsas_slots {
 494         size_t                  m_size;         /* size of struct, bytes */
 495         uint_t                  m_n_normal;     /* see above */
 496         uint_t                  m_rotor;        /* next slot idx to consider */
 497         mptsas_cmd_t            *m_slot[1];
 498 } mptsas_slots_t;
 499 
 500 /*
 501  * Structure to hold command and packets for event ack
 502  * and task management commands.
 503  */
 504 typedef struct  m_event_struct {
 505         struct mptsas_cmd               m_event_cmd;
 506         struct m_event_struct   *m_event_linkp;
 507         /*
 508          * event member record the failure event and eventcntx
 509          * event member would be used in send ack pending process
 510          */
 511         uint32_t                m_event;
 512         uint32_t                m_eventcntx;
 513         uint_t                  in_use;
 514         struct scsi_pkt         m_event_pkt;    /* must be last */
 515                                                 /* ... scsi_pkt_size() */
 516 } m_event_struct_t;
 517 #define M_EVENT_STRUCT_SIZE     (sizeof (m_event_struct_t) - \
 518                                 sizeof (struct scsi_pkt) + scsi_pkt_size())
 519 
 520 #define MAX_IOC_COMMANDS        8
 521 
 522 /*
 523  * A pool of MAX_IOC_COMMANDS is maintained for event ack commands.
 524  * A new event ack command requests mptsas_cmd and scsi_pkt structures
 525  * from this pool, and returns it back when done.
 526  */
 527 
 528 typedef struct m_replyh_arg {
 529         void *mpt;
 530         uint32_t rfm;
 531 } m_replyh_arg_t;
 532 _NOTE(DATA_READABLE_WITHOUT_LOCK(m_replyh_arg_t::mpt))
 533 _NOTE(DATA_READABLE_WITHOUT_LOCK(m_replyh_arg_t::rfm))
 534 
 535 /*
 536  * Flags for DR handler topology change
 537  */
 538 #define MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE         0x0
 539 #define MPTSAS_TOPO_FLAG_EXPANDER_ASSOCIATED            0x1
 540 #define MPTSAS_TOPO_FLAG_LUN_ASSOCIATED                 0x2
 541 #define MPTSAS_TOPO_FLAG_RAID_ASSOCIATED                0x4
 542 #define MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED        0x8
 543 #define MPTSAS_TOPO_FLAG_EXPANDER_ATTACHED_DEVICE       0x10
 544 
 545 typedef struct mptsas_topo_change_list {
 546         void *mpt;
 547         uint_t  event;
 548         union {
 549                 uint8_t physport;
 550                 mptsas_phymask_t phymask;
 551         } un;
 552         uint16_t devhdl;
 553         void *object;
 554         uint8_t flags;
 555         struct mptsas_topo_change_list *next;
 556 } mptsas_topo_change_list_t;
 557 
 558 
 559 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas_topo_change_list_t::mpt))
 560 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas_topo_change_list_t::event))
 561 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas_topo_change_list_t::physport))
 562 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas_topo_change_list_t::devhdl))
 563 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas_topo_change_list_t::object))
 564 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas_topo_change_list_t::flags))
 565 
 566 /*
 567  * Status types when calling mptsas_get_target_device_info
 568  */
 569 #define DEV_INFO_SUCCESS                0x0
 570 #define DEV_INFO_FAIL_PAGE0             0x1
 571 #define DEV_INFO_WRONG_DEVICE_TYPE      0x2
 572 #define DEV_INFO_PHYS_DISK              0x3
 573 #define DEV_INFO_FAIL_ALLOC             0x4
 574 #define DEV_INFO_FAIL_GUID              0x5
 575 
 576 /*
 577  * mpt hotplug event defines
 578  */
 579 #define MPTSAS_DR_EVENT_RECONFIG_TARGET 0x01
 580 #define MPTSAS_DR_EVENT_OFFLINE_TARGET  0x02
 581 #define MPTSAS_TOPO_FLAG_REMOVE_HANDLE  0x04
 582 
 583 /*
 584  * SMP target hotplug events
 585  */
 586 #define MPTSAS_DR_EVENT_RECONFIG_SMP    0x10
 587 #define MPTSAS_DR_EVENT_OFFLINE_SMP     0x20
 588 #define MPTSAS_DR_EVENT_MASK            0x3F
 589 
 590 /*
 591  * mpt hotplug status definition for m_dr_flag
 592  */
 593 
 594 /*
 595  * MPTSAS_DR_INACTIVE
 596  *
 597  * The target is in a normal operating state.
 598  * No dynamic reconfiguration operation is in progress.
 599  */
 600 #define MPTSAS_DR_INACTIVE                              0x0
 601 /*
 602  * MPTSAS_DR_INTRANSITION
 603  *
 604  * The target is in a transition mode since
 605  * hotplug event happens and offline procedure has not
 606  * been finished
 607  */
 608 #define MPTSAS_DR_INTRANSITION                  0x1
 609 
 610 typedef struct mptsas_tgt_private {
 611         int t_lun;
 612         struct mptsas_target *t_private;
 613 } mptsas_tgt_private_t;
 614 
 615 /*
 616  * The following defines are used in mptsas_set_init_mode to track the current
 617  * state as we progress through reprogramming the HBA from target mode into
 618  * initiator mode.
 619  */
 620 
 621 #define IOUC_READ_PAGE0         0x00000100
 622 #define IOUC_READ_PAGE1         0x00000200
 623 #define IOUC_WRITE_PAGE1        0x00000400
 624 #define IOUC_DONE               0x00000800
 625 #define DISCOVERY_IN_PROGRESS   MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS
 626 #define AUTO_PORT_CONFIGURATION MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG
 627 
 628 /*
 629  * Last allocated slot is used for TM requests.  Since only m_max_requests
 630  * frames are allocated, the last SMID will be m_max_requests - 1.
 631  */
 632 #define MPTSAS_SLOTS_SIZE(mpt) \
 633         (sizeof (struct mptsas_slots) + (sizeof (struct mptsas_cmd *) * \
 634                 mpt->m_max_requests))
 635 #define MPTSAS_TM_SLOT(mpt)     (mpt->m_max_requests - 1)
 636 
 637 /*
 638  * Macro for phy_flags
 639  */
 640 
 641 typedef struct smhba_info {
 642         kmutex_t        phy_mutex;
 643         uint8_t         phy_id;
 644         uint64_t        sas_addr;
 645         char            path[8];
 646         uint16_t        owner_devhdl;
 647         uint16_t        attached_devhdl;
 648         uint8_t         attached_phy_identify;
 649         uint32_t        attached_phy_info;
 650         uint8_t         programmed_link_rate;
 651         uint8_t         hw_link_rate;
 652         uint8_t         change_count;
 653         uint32_t        phy_info;
 654         uint8_t         negotiated_link_rate;
 655         uint8_t         port_num;
 656         kstat_t         *phy_stats;
 657         uint32_t        invalid_dword_count;
 658         uint32_t        running_disparity_error_count;
 659         uint32_t        loss_of_dword_sync_count;
 660         uint32_t        phy_reset_problem_count;
 661         void            *mpt;
 662 } smhba_info_t;
 663 
 664 typedef struct mptsas_phy_info {
 665         uint8_t                 port_num;
 666         uint8_t                 port_flags;
 667         uint16_t                ctrl_devhdl;
 668         uint32_t                phy_device_type;
 669         uint16_t                attached_devhdl;
 670         mptsas_phymask_t        phy_mask;
 671         smhba_info_t            smhba_info;
 672 } mptsas_phy_info_t;
 673 
 674 
 675 typedef struct mptsas_doneq_thread_arg {
 676         void            *mpt;
 677         uint64_t        t;
 678 } mptsas_doneq_thread_arg_t;
 679 
 680 #define MPTSAS_DONEQ_THREAD_ACTIVE      0x1
 681 typedef struct mptsas_doneq_thread_list {
 682         mptsas_cmd_t            *doneq;
 683         mptsas_cmd_t            **donetail;
 684         kthread_t               *threadp;
 685         kcondvar_t              cv;
 686         ushort_t                reserv1;
 687         uint32_t                reserv2;
 688         kmutex_t                mutex;
 689         uint32_t                flag;
 690         uint32_t                len;
 691         mptsas_doneq_thread_arg_t       arg;
 692 } mptsas_doneq_thread_list_t;
 693 
 694 typedef struct mptsas {
 695         int             m_instance;
 696 
 697         struct mptsas *m_next;
 698 
 699         scsi_hba_tran_t         *m_tran;
 700         smp_hba_tran_t          *m_smptran;
 701         kmutex_t                m_mutex;
 702         kmutex_t                m_passthru_mutex;
 703         kcondvar_t              m_cv;
 704         kcondvar_t              m_passthru_cv;
 705         kcondvar_t              m_fw_cv;
 706         kcondvar_t              m_config_cv;
 707         kcondvar_t              m_fw_diag_cv;
 708         dev_info_t              *m_dip;
 709 
 710         /*
 711          * soft state flags
 712          */
 713         uint_t          m_softstate;
 714 
 715         refhash_t       *m_targets;
 716         refhash_t       *m_smp_targets;
 717         list_t          m_enclosures;
 718         refhash_t       *m_tmp_targets;
 719 
 720         m_raidconfig_t  m_raidconfig[MPTSAS_MAX_RAIDCONFIGS];
 721         uint8_t         m_num_raid_configs;
 722 
 723         struct mptsas_slots *m_active;  /* outstanding cmds */
 724 
 725         mptsas_cmd_t    *m_waitq;       /* cmd queue for active request */
 726         mptsas_cmd_t    **m_waitqtail;  /* wait queue tail ptr */
 727 
 728         kmutex_t        m_tx_waitq_mutex;
 729         mptsas_cmd_t    *m_tx_waitq;    /* TX cmd queue for active request */
 730         mptsas_cmd_t    **m_tx_waitqtail;       /* tx_wait queue tail ptr */
 731         int             m_tx_draining;  /* TX queue draining flag */
 732 
 733         mptsas_cmd_t    *m_doneq;       /* queue of completed commands */
 734         mptsas_cmd_t    **m_donetail;   /* queue tail ptr */
 735 
 736         /*
 737          * variables for helper threads (fan-out interrupts)
 738          */
 739         mptsas_doneq_thread_list_t      *m_doneq_thread_id;
 740         uint32_t                m_doneq_thread_n;
 741         uint32_t                m_doneq_thread_threshold;
 742         uint32_t                m_doneq_length_threshold;
 743         uint32_t                m_doneq_len;
 744         kcondvar_t              m_doneq_thread_cv;
 745         kmutex_t                m_doneq_mutex;
 746 
 747         int             m_ncmds;        /* number of outstanding commands */
 748         m_event_struct_t *m_ioc_event_cmdq;     /* cmd queue for ioc event */
 749         m_event_struct_t **m_ioc_event_cmdtail; /* ioc cmd queue tail */
 750 
 751         ddi_acc_handle_t m_datap;       /* operating regs data access handle */
 752 
 753         struct _MPI2_SYSTEM_INTERFACE_REGS      *m_reg;
 754 
 755         ushort_t        m_devid;        /* device id of chip. */
 756         uchar_t         m_revid;        /* revision of chip. */
 757         uint16_t        m_svid;         /* subsystem Vendor ID of chip */
 758         uint16_t        m_ssid;         /* subsystem Device ID of chip */
 759 
 760         uchar_t         m_sync_offset;  /* default offset for this chip. */
 761 
 762         timeout_id_t    m_quiesce_timeid;
 763 
 764         ddi_dma_handle_t m_dma_req_frame_hdl;
 765         ddi_acc_handle_t m_acc_req_frame_hdl;
 766         ddi_dma_handle_t m_dma_req_sense_hdl;
 767         ddi_acc_handle_t m_acc_req_sense_hdl;
 768         ddi_dma_handle_t m_dma_reply_frame_hdl;
 769         ddi_acc_handle_t m_acc_reply_frame_hdl;
 770         ddi_dma_handle_t m_dma_free_queue_hdl;
 771         ddi_acc_handle_t m_acc_free_queue_hdl;
 772         ddi_dma_handle_t m_dma_post_queue_hdl;
 773         ddi_acc_handle_t m_acc_post_queue_hdl;
 774 
 775         /*
 776          * list of reset notification requests
 777          */
 778         struct scsi_reset_notify_entry  *m_reset_notify_listf;
 779 
 780         /*
 781          * qfull handling
 782          */
 783         timeout_id_t    m_restart_cmd_timeid;
 784 
 785         /*
 786          * scsi reset delay per bus
 787          */
 788         uint_t          m_scsi_reset_delay;
 789 
 790         /*
 791          *  Tuneable for the throttle control
 792          */
 793         uint_t          m_max_tune_throttle;
 794 
 795         int             m_pm_idle_delay;
 796 
 797         uchar_t         m_polled_intr;  /* intr was polled. */
 798         uchar_t         m_suspended;    /* true if driver is suspended */
 799 
 800         struct kmem_cache *m_kmem_cache;
 801         struct kmem_cache *m_cache_frames;
 802 
 803         /*
 804          * hba options.
 805          */
 806         uint_t          m_options;
 807 
 808         int             m_in_callback;
 809 
 810         int             m_power_level;  /* current power level */
 811 
 812         int             m_busy;         /* power management busy state */
 813 
 814         off_t           m_pmcsr_offset; /* PMCSR offset */
 815 
 816         ddi_acc_handle_t m_config_handle;
 817 
 818         ddi_dma_attr_t          m_io_dma_attr;  /* Used for data I/O */
 819         ddi_dma_attr_t          m_msg_dma_attr; /* Used for message frames */
 820         ddi_device_acc_attr_t   m_dev_acc_attr;
 821         ddi_device_acc_attr_t   m_reg_acc_attr;
 822 
 823         /*
 824          * request/reply variables
 825          */
 826         caddr_t         m_req_frame;
 827         uint64_t        m_req_frame_dma_addr;
 828         caddr_t         m_req_sense;
 829         caddr_t         m_extreq_sense;
 830         uint64_t        m_req_sense_dma_addr;
 831         caddr_t         m_reply_frame;
 832         uint64_t        m_reply_frame_dma_addr;
 833         caddr_t         m_free_queue;
 834         uint64_t        m_free_queue_dma_addr;
 835         caddr_t         m_post_queue;
 836         uint64_t        m_post_queue_dma_addr;
 837         struct map      *m_erqsense_map;
 838 
 839         m_replyh_arg_t *m_replyh_args;
 840 
 841         uint16_t        m_max_requests;
 842         uint16_t        m_req_frame_size;
 843         uint16_t        m_req_sense_size;
 844 
 845         /*
 846          * Max frames per request reprted in IOC Facts
 847          */
 848         uint8_t         m_max_chain_depth;
 849         /*
 850          * Max frames per request which is used in reality. It's adjusted
 851          * according DMA SG length attribute, and shall not exceed the
 852          * m_max_chain_depth.
 853          */
 854         uint8_t         m_max_request_frames;
 855 
 856         uint16_t        m_free_queue_depth;
 857         uint16_t        m_post_queue_depth;
 858         uint16_t        m_max_replies;
 859         uint32_t        m_free_index;
 860         uint32_t        m_post_index;
 861         uint8_t         m_reply_frame_size;
 862         uint32_t        m_ioc_capabilities;
 863 
 864         /*
 865          * indicates if the firmware was upload by the driver
 866          * at boot time
 867          */
 868         ushort_t        m_fwupload;
 869 
 870         uint16_t        m_productid;
 871 
 872         /*
 873          * per instance data structures for dma memory resources for
 874          * MPI handshake protocol. only one handshake cmd can run at a time.
 875          */
 876         ddi_dma_handle_t        m_hshk_dma_hdl;
 877         ddi_acc_handle_t        m_hshk_acc_hdl;
 878         caddr_t                 m_hshk_memp;
 879         size_t                  m_hshk_dma_size;
 880 
 881         /* Firmware version on the card at boot time */
 882         uint32_t                m_fwversion;
 883 
 884         /* MSI specific fields */
 885         ddi_intr_handle_t       *m_htable;      /* For array of interrupts */
 886         int                     m_intr_type;    /* What type of interrupt */
 887         int                     m_intr_cnt;     /* # of intrs count returned */
 888         size_t                  m_intr_size;    /* Size of intr array */
 889         uint_t                  m_intr_pri;     /* Interrupt priority   */
 890         int                     m_intr_cap;     /* Interrupt capabilities */
 891         ddi_taskq_t             *m_event_taskq;
 892 
 893         /* SAS specific information */
 894 
 895         union {
 896                 uint64_t        m_base_wwid;    /* Base WWID */
 897                 struct {
 898 #ifdef _BIG_ENDIAN
 899                         uint32_t        m_base_wwid_hi;
 900                         uint32_t        m_base_wwid_lo;
 901 #else
 902                         uint32_t        m_base_wwid_lo;
 903                         uint32_t        m_base_wwid_hi;
 904 #endif
 905                 } sasaddr;
 906         } un;
 907 
 908         uint8_t                 m_num_phys;             /* # of PHYs */
 909         mptsas_phy_info_t       m_phy_info[MPTSAS_MAX_PHYS];
 910         uint8_t                 m_port_chng;    /* initiator port changes */
 911         MPI2_CONFIG_PAGE_MAN_0   m_MANU_page0;   /* Manufactor page 0 info */
 912         MPI2_CONFIG_PAGE_MAN_1   m_MANU_page1;   /* Manufactor page 1 info */
 913 
 914         /* FMA Capabilities */
 915         int                     m_fm_capabilities;
 916         ddi_taskq_t             *m_dr_taskq;
 917         int                     m_mpxio_enable;
 918         uint8_t                 m_done_traverse_dev;
 919         uint8_t                 m_done_traverse_smp;
 920         uint8_t                 m_done_traverse_enc;
 921         int                     m_diag_action_in_progress;
 922         uint16_t                m_dev_handle;
 923         uint16_t                m_smp_devhdl;
 924 
 925         /*
 926          * Event recording
 927          */
 928         uint8_t                 m_event_index;
 929         uint32_t                m_event_number;
 930         uint32_t                m_event_mask[4];
 931         mptsas_event_entry_t    m_events[MPTSAS_EVENT_QUEUE_SIZE];
 932 
 933         /*
 934          * FW diag Buffer List
 935          */
 936         mptsas_fw_diagnostic_buffer_t
 937                 m_fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_COUNT];
 938 
 939         /* GEN3 support */
 940         uint8_t                 m_MPI25;
 941 
 942         /*
 943          * Event Replay flag (MUR support)
 944          */
 945         uint8_t                 m_event_replay;
 946 
 947         /*
 948          * IR Capable flag
 949          */
 950         uint8_t                 m_ir_capable;
 951 
 952         /*
 953          * Is HBA processing a diag reset?
 954          */
 955         uint8_t                 m_in_reset;
 956 
 957         /*
 958          * per instance cmd data structures for task management cmds
 959          */
 960         m_event_struct_t        m_event_task_mgmt;      /* must be last */
 961                                                         /* ... scsi_pkt_size */
 962 
 963 #ifdef MPTSAS_FAULTINJECTION
 964         struct mptsas_active_cmdq  m_fminj_cmdq;
 965 #endif
 966 } mptsas_t;
 967 #define MPTSAS_SIZE     (sizeof (struct mptsas) - \
 968                         sizeof (struct scsi_pkt) + scsi_pkt_size())
 969 /*
 970  * Only one of below two conditions is satisfied, we
 971  * think the target is associated to the iport and
 972  * allow call into mptsas_probe_lun().
 973  * 1. physicalsport == physport
 974  * 2. (phymask & (1 << physport)) == 0
 975  * The condition #2 is because LSI uses lowest PHY
 976  * number as the value of physical port when auto port
 977  * configuration.
 978  */
 979 #define IS_SAME_PORT(physicalport, physport, phymask, dynamicport) \
 980         ((physicalport == physport) || (dynamicport && (phymask & \
 981         (1 << physport))))
 982 
 983 _NOTE(MUTEX_PROTECTS_DATA(mptsas::m_mutex, mptsas))
 984 _NOTE(SCHEME_PROTECTS_DATA("safe sharing", mptsas::m_next))
 985 _NOTE(SCHEME_PROTECTS_DATA("stable data", mptsas::m_dip mptsas::m_tran))
 986 _NOTE(SCHEME_PROTECTS_DATA("stable data", mptsas::m_kmem_cache))
 987 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas::m_io_dma_attr.dma_attr_sgllen))
 988 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas::m_devid))
 989 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas::m_productid))
 990 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas::m_mpxio_enable))
 991 _NOTE(DATA_READABLE_WITHOUT_LOCK(mptsas::m_instance))
 992 
 993 /*
 994  * These should eventually migrate into the mpt header files
 995  * that may become the /kernel/misc/mpt module...
 996  */
 997 #define mptsas_init_std_hdr(hdl, mp, DevHandle, Lun, ChainOffset, Function) \
 998         mptsas_put_msg_DevHandle(hdl, mp, DevHandle); \
 999         mptsas_put_msg_ChainOffset(hdl, mp, ChainOffset); \
1000         mptsas_put_msg_Function(hdl, mp, Function); \
1001         mptsas_put_msg_Lun(hdl, mp, Lun)
1002 
1003 #define mptsas_put_msg_DevHandle(hdl, mp, val) \
1004         ddi_put16(hdl, &(mp)->DevHandle, (val))
1005 #define mptsas_put_msg_ChainOffset(hdl, mp, val) \
1006         ddi_put8(hdl, &(mp)->ChainOffset, (val))
1007 #define mptsas_put_msg_Function(hdl, mp, val) \
1008         ddi_put8(hdl, &(mp)->Function, (val))
1009 #define mptsas_put_msg_Lun(hdl, mp, val) \
1010         ddi_put8(hdl, &(mp)->LUN[1], (val))
1011 
1012 #define mptsas_get_msg_Function(hdl, mp) \
1013         ddi_get8(hdl, &(mp)->Function)
1014 
1015 #define mptsas_get_msg_MsgFlags(hdl, mp) \
1016         ddi_get8(hdl, &(mp)->MsgFlags)
1017 
1018 #define MPTSAS_ENABLE_DRWE(hdl) \
1019         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1020                 MPI2_WRSEQ_FLUSH_KEY_VALUE); \
1021         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1022                 MPI2_WRSEQ_1ST_KEY_VALUE); \
1023         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1024                 MPI2_WRSEQ_2ND_KEY_VALUE); \
1025         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1026                 MPI2_WRSEQ_3RD_KEY_VALUE); \
1027         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1028                 MPI2_WRSEQ_4TH_KEY_VALUE); \
1029         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1030                 MPI2_WRSEQ_5TH_KEY_VALUE); \
1031         ddi_put32(hdl->m_datap, &hdl->m_reg->WriteSequence, \
1032                 MPI2_WRSEQ_6TH_KEY_VALUE);
1033 
1034 /*
1035  * m_options flags
1036  */
1037 #define MPTSAS_OPT_PM           0x01    /* Power Management */
1038 
1039 /*
1040  * m_softstate flags
1041  */
1042 #define MPTSAS_SS_DRAINING              0x02
1043 #define MPTSAS_SS_QUIESCED              0x04
1044 #define MPTSAS_SS_MSG_UNIT_RESET        0x08
1045 #define MPTSAS_DID_MSG_UNIT_RESET       0x10
1046 
1047 /*
1048  * regspec defines.
1049  */
1050 #define CONFIG_SPACE    0       /* regset[0] - configuration space */
1051 #define IO_SPACE        1       /* regset[1] - used for i/o mapped device */
1052 #define MEM_SPACE       2       /* regset[2] - used for memory mapped device */
1053 #define BASE_REG2       3       /* regset[3] - used for 875 scripts ram */
1054 
1055 /*
1056  * Handy constants
1057  */
1058 #define FALSE           0
1059 #define TRUE            1
1060 #define UNDEFINED       -1
1061 #define FAILED          -2
1062 
1063 /*
1064  * power management.
1065  */
1066 #define MPTSAS_POWER_ON(mpt) { \
1067         pci_config_put16(mpt->m_config_handle, mpt->m_pmcsr_offset, \
1068             PCI_PMCSR_D0); \
1069         delay(drv_usectohz(10000)); \
1070         (void) pci_restore_config_regs(mpt->m_dip); \
1071         mptsas_setup_cmd_reg(mpt); \
1072 }
1073 
1074 #define MPTSAS_POWER_OFF(mpt) { \
1075         (void) pci_save_config_regs(mpt->m_dip); \
1076         pci_config_put16(mpt->m_config_handle, mpt->m_pmcsr_offset, \
1077             PCI_PMCSR_D3HOT); \
1078         mpt->m_power_level = PM_LEVEL_D3; \
1079 }
1080 
1081 /*
1082  * inq_dtype:
1083  * Bits 5 through 7 are the Peripheral Device Qualifier
1084  * 001b: device not connected to the LUN
1085  * Bits 0 through 4 are the Peripheral Device Type
1086  * 1fh: Unknown or no device type
1087  *
1088  * Although the inquiry may return success, the following value
1089  * means no valid LUN connected.
1090  */
1091 #define MPTSAS_VALID_LUN(sd_inq) \
1092         (((sd_inq->inq_dtype & 0xe0) != 0x20) && \
1093         ((sd_inq->inq_dtype & 0x1f) != 0x1f))
1094 
1095 /*
1096  * Default is to have 10 retries on receiving QFULL status and
1097  * each retry to be after 100 ms.
1098  */
1099 #define QFULL_RETRIES           10
1100 #define QFULL_RETRY_INTERVAL    100
1101 
1102 /*
1103  * Handy macros
1104  */
1105 #define Tgt(sp) ((sp)->cmd_pkt->pkt_address.a_target)
1106 #define Lun(sp) ((sp)->cmd_pkt->pkt_address.a_lun)
1107 
1108 #define IS_HEX_DIGIT(n) (((n) >= '0' && (n) <= '9') || \
1109         ((n) >= 'a' && (n) <= 'f') || ((n) >= 'A' && (n) <= 'F'))
1110 
1111 /*
1112  * poll time for mptsas_pollret() and mptsas_wait_intr()
1113  */
1114 #define MPTSAS_POLL_TIME        30000   /* 30 seconds */
1115 
1116 /*
1117  * default time for mptsas_do_passthru
1118  */
1119 #define MPTSAS_PASS_THRU_TIME_DEFAULT   60      /* 60 seconds */
1120 
1121 /*
1122  * macro to return the effective address of a given per-target field
1123  */
1124 #define EFF_ADDR(start, offset)         ((start) + (offset))
1125 
1126 #define SDEV2ADDR(devp)         (&((devp)->sd_address))
1127 #define SDEV2TRAN(devp)         ((devp)->sd_address.a_hba_tran)
1128 #define PKT2TRAN(pkt)           ((pkt)->pkt_address.a_hba_tran)
1129 #define ADDR2TRAN(ap)           ((ap)->a_hba_tran)
1130 #define DIP2TRAN(dip)           (ddi_get_driver_private(dip))
1131 
1132 
1133 #define TRAN2MPT(hba)           ((mptsas_t *)(hba)->tran_hba_private)
1134 #define DIP2MPT(dip)            (TRAN2MPT((scsi_hba_tran_t *)DIP2TRAN(dip)))
1135 #define SDEV2MPT(sd)            (TRAN2MPT(SDEV2TRAN(sd)))
1136 #define PKT2MPT(pkt)            (TRAN2MPT(PKT2TRAN(pkt)))
1137 
1138 #define ADDR2MPT(ap)            (TRAN2MPT(ADDR2TRAN(ap)))
1139 
1140 #define POLL_TIMEOUT            (2 * SCSI_POLL_TIMEOUT * 1000000)
1141 #define SHORT_POLL_TIMEOUT      (1000000)       /* in usec, about 1 secs */
1142 #define MPTSAS_QUIESCE_TIMEOUT  1               /* 1 sec */
1143 #define MPTSAS_PM_IDLE_TIMEOUT  60              /* 60 seconds */
1144 
1145 #define MPTSAS_GET_ISTAT(mpt)  (ddi_get32((mpt)->m_datap, \
1146                         &(mpt)->m_reg->HostInterruptStatus))
1147 
1148 #define MPTSAS_SET_SIGP(P) \
1149                 ClrSetBits(mpt->m_devaddr + NREG_ISTAT, 0, NB_ISTAT_SIGP)
1150 
1151 #define MPTSAS_RESET_SIGP(P) (void) ddi_get8(mpt->m_datap, \
1152                         (uint8_t *)(mpt->m_devaddr + NREG_CTEST2))
1153 
1154 #define MPTSAS_GET_INTCODE(P) (ddi_get32(mpt->m_datap, \
1155                         (uint32_t *)(mpt->m_devaddr + NREG_DSPS)))
1156 
1157 
1158 #define MPTSAS_START_CMD(mpt, req_desc) \
1159         ddi_put32(mpt->m_datap, &mpt->m_reg->RequestDescriptorPostLow,     \
1160             req_desc & 0xffffffffu);                                        \
1161         ddi_put32(mpt->m_datap, &mpt->m_reg->RequestDescriptorPostHigh,    \
1162             (req_desc >> 32) & 0xffffffffu);
1163 
1164 #define INTPENDING(mpt) \
1165         (MPTSAS_GET_ISTAT(mpt) & MPI2_HIS_REPLY_DESCRIPTOR_INTERRUPT)
1166 
1167 /*
1168  * Mask all interrupts to disable
1169  */
1170 #define MPTSAS_DISABLE_INTR(mpt)        \
1171         ddi_put32((mpt)->m_datap, &(mpt)->m_reg->HostInterruptMask, \
1172             (MPI2_HIM_RIM | MPI2_HIM_DIM | MPI2_HIM_RESET_IRQ_MASK))
1173 
1174 /*
1175  * Mask Doorbell and Reset interrupts to enable reply desc int.
1176  */
1177 #define MPTSAS_ENABLE_INTR(mpt) \
1178         ddi_put32(mpt->m_datap, &mpt->m_reg->HostInterruptMask, \
1179         (MPI2_HIM_DIM | MPI2_HIM_RESET_IRQ_MASK))
1180 
1181 #define MPTSAS_GET_NEXT_REPLY(mpt, index)  \
1182         &((uint64_t *)(void *)mpt->m_post_queue)[index]
1183 
1184 #define MPTSAS_GET_NEXT_FRAME(mpt, SMID) \
1185         (mpt->m_req_frame + (mpt->m_req_frame_size * SMID))
1186 
1187 #define ClrSetBits32(hdl, reg, clr, set) \
1188         ddi_put32(hdl, (reg), \
1189             ((ddi_get32(mpt->m_datap, (reg)) & ~(clr)) | (set)))
1190 
1191 #define ClrSetBits(reg, clr, set) \
1192         ddi_put8(mpt->m_datap, (uint8_t *)(reg), \
1193                 ((ddi_get8(mpt->m_datap, (uint8_t *)(reg)) & ~(clr)) | (set)))
1194 
1195 #define MPTSAS_WAITQ_RM(mpt, cmdp)      \
1196         if ((cmdp = mpt->m_waitq) != NULL) { \
1197                 /* If the queue is now empty fix the tail pointer */    \
1198                 if ((mpt->m_waitq = cmdp->cmd_linkp) == NULL) \
1199                         mpt->m_waitqtail = &mpt->m_waitq; \
1200                 cmdp->cmd_linkp = NULL; \
1201                 cmdp->cmd_queued = FALSE; \
1202         }
1203 
1204 #define MPTSAS_TX_WAITQ_RM(mpt, cmdp)   \
1205         if ((cmdp = mpt->m_tx_waitq) != NULL) { \
1206                 /* If the queue is now empty fix the tail pointer */    \
1207                 if ((mpt->m_tx_waitq = cmdp->cmd_linkp) == NULL) \
1208                         mpt->m_tx_waitqtail = &mpt->m_tx_waitq; \
1209                 cmdp->cmd_linkp = NULL; \
1210                 cmdp->cmd_queued = FALSE; \
1211         }
1212 
1213 /*
1214  * defaults for the global properties
1215  */
1216 #define DEFAULT_SCSI_OPTIONS    SCSI_OPTIONS_DR
1217 #define DEFAULT_TAG_AGE_LIMIT   2
1218 #define DEFAULT_WD_TICK         1
1219 
1220 /*
1221  * invalid hostid.
1222  */
1223 #define MPTSAS_INVALID_HOSTID  -1
1224 
1225 /*
1226  * Get/Set hostid from SCSI port configuration page
1227  */
1228 #define MPTSAS_GET_HOST_ID(configuration) (configuration & 0xFF)
1229 #define MPTSAS_SET_HOST_ID(hostid) (hostid | ((1 << hostid) << 16))
1230 
1231 /*
1232  * Config space.
1233  */
1234 #define MPTSAS_LATENCY_TIMER    0x40
1235 
1236 /*
1237  * Offset to firmware version
1238  */
1239 #define MPTSAS_FW_VERSION_OFFSET        9
1240 
1241 /*
1242  * Offset and masks to get at the ProductId field
1243  */
1244 #define MPTSAS_FW_PRODUCTID_OFFSET      8
1245 #define MPTSAS_FW_PRODUCTID_MASK        0xFFFF0000
1246 #define MPTSAS_FW_PRODUCTID_SHIFT       16
1247 
1248 /*
1249  * Subsystem ID for HBAs.
1250  */
1251 #define MPTSAS_HBA_SUBSYSTEM_ID    0x10C0
1252 #define MPTSAS_RHEA_SUBSYSTEM_ID        0x10B0
1253 
1254 /*
1255  * reset delay tick
1256  */
1257 #define MPTSAS_WATCH_RESET_DELAY_TICK 50        /* specified in milli seconds */
1258 
1259 /*
1260  * Ioc reset return values
1261  */
1262 #define MPTSAS_RESET_FAIL       -1
1263 #define MPTSAS_NO_RESET         0
1264 #define MPTSAS_SUCCESS_HARDRESET        1
1265 #define MPTSAS_SUCCESS_MUR      2
1266 
1267 /*
1268  * throttle support.
1269  */
1270 
1271 #define THROTTLE_HI     4096
1272 #define THROTTLE_LO     32
1273 #define MAX_THROTTLE THROTTLE_LO
1274 #define HOLD_THROTTLE   0
1275 #define DRAIN_THROTTLE  -1
1276 #define QFULL_THROTTLE  -2
1277 
1278 /*
1279  * Passthrough/config request flags
1280  */
1281 #define MPTSAS_DATA_ALLOCATED           0x0001
1282 #define MPTSAS_DATAOUT_ALLOCATED        0x0002
1283 #define MPTSAS_REQUEST_POOL_CMD         0x0004
1284 #define MPTSAS_ADDRESS_REPLY            0x0008
1285 #define MPTSAS_CMD_TIMEOUT              0x0010
1286 
1287 /*
1288  * response code tlr flag
1289  */
1290 #define MPTSAS_SCSI_RESPONSE_CODE_TLR_OFF       0x02
1291 
1292 /*
1293  * System Events
1294  */
1295 #ifndef DDI_VENDOR_LSI
1296 #define DDI_VENDOR_LSI  "LSI"
1297 #endif  /* DDI_VENDOR_LSI */
1298 
1299 /*
1300  * Shared functions
1301  */
1302 int mptsas_save_cmd(struct mptsas *mpt, struct mptsas_cmd *cmd);
1303 void mptsas_remove_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd);
1304 void mptsas_waitq_add(mptsas_t *mpt, mptsas_cmd_t *cmd);
1305 void mptsas_log(struct mptsas *mpt, int level, char *fmt, ...);
1306 int mptsas_poll(mptsas_t *mpt, mptsas_cmd_t *poll_cmd, int polltime);
1307 int mptsas_do_dma(mptsas_t *mpt, uint32_t size, int var, int (*callback)());
1308 int mptsas_update_flash(mptsas_t *mpt, caddr_t ptrbuffer, uint32_t size,
1309         uint8_t type, int mode);
1310 int mptsas_check_flash(mptsas_t *mpt, caddr_t origfile, uint32_t size,
1311         uint8_t type, int mode);
1312 int mptsas_download_firmware();
1313 int mptsas_can_download_firmware();
1314 int mptsas_dma_alloc(mptsas_t *mpt, mptsas_dma_alloc_state_t *dma_statep);
1315 void mptsas_dma_free(mptsas_dma_alloc_state_t *dma_statep);
1316 mptsas_phymask_t mptsas_physport_to_phymask(mptsas_t *mpt, uint8_t physport);
1317 void mptsas_fma_check(mptsas_t *mpt, mptsas_cmd_t *cmd);
1318 int mptsas_check_acc_handle(ddi_acc_handle_t handle);
1319 int mptsas_check_dma_handle(ddi_dma_handle_t handle);
1320 void mptsas_fm_ereport(mptsas_t *mpt, char *detail);
1321 int mptsas_dma_addr_create(mptsas_t *mpt, ddi_dma_attr_t dma_attr,
1322     ddi_dma_handle_t *dma_hdp, ddi_acc_handle_t *acc_hdp, caddr_t *dma_memp,
1323     uint32_t alloc_size, ddi_dma_cookie_t *cookiep);
1324 void mptsas_dma_addr_destroy(ddi_dma_handle_t *, ddi_acc_handle_t *);
1325 
1326 /*
1327  * impl functions
1328  */
1329 int mptsas_ioc_wait_for_response(mptsas_t *mpt);
1330 int mptsas_ioc_wait_for_doorbell(mptsas_t *mpt);
1331 int mptsas_ioc_reset(mptsas_t *mpt, int);
1332 int mptsas_send_handshake_msg(mptsas_t *mpt, caddr_t memp, int numbytes,
1333     ddi_acc_handle_t accessp);
1334 int mptsas_get_handshake_msg(mptsas_t *mpt, caddr_t memp, int numbytes,
1335     ddi_acc_handle_t accessp);
1336 int mptsas_send_config_request_msg(mptsas_t *mpt, uint8_t action,
1337     uint8_t pagetype, uint32_t pageaddress, uint8_t pagenumber,
1338     uint8_t pageversion, uint8_t pagelength, uint32_t SGEflagslength,
1339     uint64_t SGEaddress);
1340 int mptsas_send_extended_config_request_msg(mptsas_t *mpt, uint8_t action,
1341     uint8_t extpagetype, uint32_t pageaddress, uint8_t pagenumber,
1342     uint8_t pageversion, uint16_t extpagelength,
1343     uint32_t SGEflagslength, uint64_t SGEaddress);
1344 
1345 int mptsas_request_from_pool(mptsas_t *mpt, mptsas_cmd_t **cmd,
1346     struct scsi_pkt **pkt);
1347 void mptsas_return_to_pool(mptsas_t *mpt, mptsas_cmd_t *cmd);
1348 void mptsas_destroy_ioc_event_cmd(mptsas_t *mpt);
1349 void mptsas_start_config_page_access(mptsas_t *mpt, mptsas_cmd_t *cmd);
1350 int mptsas_access_config_page(mptsas_t *mpt, uint8_t action, uint8_t page_type,
1351     uint8_t page_number, uint32_t page_address, int (*callback) (mptsas_t *,
1352     caddr_t, ddi_acc_handle_t, uint16_t, uint32_t, va_list), ...);
1353 
1354 int mptsas_ioc_task_management(mptsas_t *mpt, int task_type,
1355     uint16_t dev_handle, int lun, uint8_t *reply, uint32_t reply_size,
1356     int mode);
1357 int mptsas_send_event_ack(mptsas_t *mpt, uint32_t event, uint32_t eventcntx);
1358 void mptsas_send_pending_event_ack(mptsas_t *mpt);
1359 void mptsas_set_throttle(struct mptsas *mpt, mptsas_target_t *ptgt, int what);
1360 int mptsas_restart_ioc(mptsas_t *mpt);
1361 void mptsas_update_driver_data(struct mptsas *mpt);
1362 uint64_t mptsas_get_sata_guid(mptsas_t *mpt, mptsas_target_t *ptgt, int lun);
1363 
1364 /*
1365  * init functions
1366  */
1367 int mptsas_ioc_get_facts(mptsas_t *mpt);
1368 int mptsas_ioc_get_port_facts(mptsas_t *mpt, int port);
1369 int mptsas_ioc_enable_port(mptsas_t *mpt);
1370 int mptsas_ioc_enable_event_notification(mptsas_t *mpt);
1371 int mptsas_ioc_init(mptsas_t *mpt);
1372 
1373 /*
1374  * configuration pages operation
1375  */
1376 int mptsas_get_sas_device_page0(mptsas_t *mpt, uint32_t page_address,
1377     uint16_t *dev_handle, uint64_t *sas_wwn, uint32_t *dev_info,
1378     uint8_t *physport, uint8_t *phynum, uint16_t *pdevhandle,
1379     uint16_t *slot_num, uint16_t *enclosure, uint16_t *io_flags);
1380 int mptsas_get_sas_io_unit_page(mptsas_t *mpt);
1381 int mptsas_get_sas_io_unit_page_hndshk(mptsas_t *mpt);
1382 int mptsas_get_sas_expander_page0(mptsas_t *mpt, uint32_t page_address,
1383     mptsas_smp_t *info);
1384 int mptsas_set_ioc_params(mptsas_t *mpt);
1385 int mptsas_get_manufacture_page5(mptsas_t *mpt);
1386 int mptsas_get_sas_port_page0(mptsas_t *mpt, uint32_t page_address,
1387     uint64_t *sas_wwn, uint8_t *portwidth);
1388 int mptsas_get_bios_page3(mptsas_t *mpt,  uint32_t *bios_version);
1389 int mptsas_get_sas_phy_page0(mptsas_t *mpt, uint32_t page_address,
1390     smhba_info_t *info);
1391 int mptsas_get_sas_phy_page1(mptsas_t *mpt, uint32_t page_address,
1392     smhba_info_t *info);
1393 int mptsas_get_manufacture_page0(mptsas_t *mpt);
1394 int mptsas_get_enclosure_page0(mptsas_t *mpt, uint32_t page_address,
1395     mptsas_enclosure_t *mpe);
1396 void mptsas_create_phy_stats(mptsas_t *mpt, char *iport, dev_info_t *dip);
1397 void mptsas_destroy_phy_stats(mptsas_t *mpt);
1398 int mptsas_smhba_phy_init(mptsas_t *mpt);
1399 /*
1400  * RAID functions
1401  */
1402 int mptsas_get_raid_settings(mptsas_t *mpt, mptsas_raidvol_t *raidvol);
1403 int mptsas_get_raid_info(mptsas_t *mpt);
1404 int mptsas_get_physdisk_settings(mptsas_t *mpt, mptsas_raidvol_t *raidvol,
1405     uint8_t physdisknum);
1406 int mptsas_delete_volume(mptsas_t *mpt, uint16_t volid);
1407 void mptsas_raid_action_system_shutdown(mptsas_t *mpt);
1408 
1409 #define MPTSAS_IOCSTATUS(status) (status & MPI2_IOCSTATUS_MASK)
1410 /*
1411  * debugging.
1412  * MPTSAS_DBGLOG_LINECNT must be a power of 2.
1413  */
1414 #define MPTSAS_DBGLOG_LINECNT   128
1415 #define MPTSAS_DBGLOG_LINELEN   256
1416 #define MPTSAS_DBGLOG_BUFSIZE   (MPTSAS_DBGLOG_LINECNT * MPTSAS_DBGLOG_LINELEN)
1417 
1418 #if defined(MPTSAS_DEBUG)
1419 
1420 extern uint32_t mptsas_debugprt_flags;
1421 extern uint32_t mptsas_debuglog_flags;
1422 
1423 void mptsas_printf(char *fmt, ...);
1424 void mptsas_debug_log(char *fmt, ...);
1425 
1426 #define MPTSAS_DBGPR(m, args)   \
1427         if (mptsas_debugprt_flags & (m)) \
1428                 mptsas_printf args;   \
1429         if (mptsas_debuglog_flags & (m)) \
1430                 mptsas_debug_log args
1431 #else   /* ! defined(MPTSAS_DEBUG) */
1432 #define MPTSAS_DBGPR(m, args)
1433 #endif  /* defined(MPTSAS_DEBUG) */
1434 
1435 #define NDBG0(args)     MPTSAS_DBGPR(0x01, args)        /* init */
1436 #define NDBG1(args)     MPTSAS_DBGPR(0x02, args)        /* normal running */
1437 #define NDBG2(args)     MPTSAS_DBGPR(0x04, args)        /* property handling */
1438 #define NDBG3(args)     MPTSAS_DBGPR(0x08, args)        /* pkt handling */
1439 
1440 #define NDBG4(args)     MPTSAS_DBGPR(0x10, args)        /* kmem alloc/free */
1441 #define NDBG5(args)     MPTSAS_DBGPR(0x20, args)        /* polled cmds */
1442 #define NDBG6(args)     MPTSAS_DBGPR(0x40, args)        /* interrupts */
1443 #define NDBG7(args)     MPTSAS_DBGPR(0x80, args)        /* queue handling */
1444 
1445 #define NDBG8(args)     MPTSAS_DBGPR(0x0100, args)      /* arq */
1446 #define NDBG9(args)     MPTSAS_DBGPR(0x0200, args)      /* Tagged Q'ing */
1447 #define NDBG10(args)    MPTSAS_DBGPR(0x0400, args)      /* halting chip */
1448 #define NDBG11(args)    MPTSAS_DBGPR(0x0800, args)      /* power management */
1449 
1450 #define NDBG12(args)    MPTSAS_DBGPR(0x1000, args)      /* enumeration */
1451 #define NDBG13(args)    MPTSAS_DBGPR(0x2000, args)      /* configuration page */
1452 #define NDBG14(args)    MPTSAS_DBGPR(0x4000, args)      /* LED control */
1453 #define NDBG15(args)    MPTSAS_DBGPR(0x8000, args)      /* Passthrough */
1454 
1455 #define NDBG16(args)    MPTSAS_DBGPR(0x010000, args)    /* SAS Broadcasts */
1456 #define NDBG17(args)    MPTSAS_DBGPR(0x020000, args)    /* scatter/gather */
1457 #define NDBG18(args)    MPTSAS_DBGPR(0x040000, args)
1458 #define NDBG19(args)    MPTSAS_DBGPR(0x080000, args)    /* handshaking */
1459 
1460 #define NDBG20(args)    MPTSAS_DBGPR(0x100000, args)    /* events */
1461 #define NDBG21(args)    MPTSAS_DBGPR(0x200000, args)    /* dma */
1462 #define NDBG22(args)    MPTSAS_DBGPR(0x400000, args)    /* reset */
1463 #define NDBG23(args)    MPTSAS_DBGPR(0x800000, args)    /* abort */
1464 
1465 #define NDBG24(args)    MPTSAS_DBGPR(0x1000000, args)   /* capabilities */
1466 #define NDBG25(args)    MPTSAS_DBGPR(0x2000000, args)   /* flushing */
1467 #define NDBG26(args)    MPTSAS_DBGPR(0x4000000, args)
1468 #define NDBG27(args)    MPTSAS_DBGPR(0x8000000, args)   /* passthrough */
1469 
1470 #define NDBG28(args)    MPTSAS_DBGPR(0x10000000, args)  /* hotplug */
1471 #define NDBG29(args)    MPTSAS_DBGPR(0x20000000, args)  /* timeouts */
1472 #define NDBG30(args)    MPTSAS_DBGPR(0x40000000, args)  /* mptsas_watch */
1473 #define NDBG31(args)    MPTSAS_DBGPR(0x80000000, args)  /* negotations */
1474 
1475 /*
1476  * auto request sense
1477  */
1478 #define RQ_MAKECOM_COMMON(pkt, flag, cmd) \
1479         (pkt)->pkt_flags = (flag), \
1480         ((union scsi_cdb *)(pkt)->pkt_cdbp)->scc_cmd = (cmd), \
1481         ((union scsi_cdb *)(pkt)->pkt_cdbp)->scc_lun = \
1482             (pkt)->pkt_address.a_lun
1483 
1484 #define RQ_MAKECOM_G0(pkt, flag, cmd, addr, cnt) \
1485         RQ_MAKECOM_COMMON((pkt), (flag), (cmd)), \
1486         FORMG0ADDR(((union scsi_cdb *)(pkt)->pkt_cdbp), (addr)), \
1487         FORMG0COUNT(((union scsi_cdb *)(pkt)->pkt_cdbp), (cnt))
1488 
1489 
1490 #ifdef  __cplusplus
1491 }
1492 #endif
1493 
1494 #endif  /* _SYS_SCSI_ADAPTERS_MPTVAR_H */