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 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_SCSI_TARGETS_SDDEF_H 27 #define _SYS_SCSI_TARGETS_SDDEF_H 28 29 #include <sys/dktp/fdisk.h> 30 #include <sys/note.h> 31 #include <sys/mhd.h> 32 #include <sys/cmlb.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 39 #if defined(_KERNEL) || defined(_KMEMUSER) 40 41 42 #define SD_SUCCESS 0 43 #define SD_FAILURE (-1) 44 45 #if defined(TRUE) 46 #undef TRUE 47 #endif 48 49 #if defined(FALSE) 50 #undef FALSE 51 #endif 52 53 #define TRUE 1 54 #define FALSE 0 55 56 #if defined(VERBOSE) 57 #undef VERBOSE 58 #endif 59 60 #if defined(SILENT) 61 #undef SILENT 62 #endif 63 64 65 /* 66 * Fault Injection Flag for Inclusion of Code 67 * 68 * This should only be defined when SDDEBUG is defined 69 * #if DEBUG || lint 70 * #define SD_FAULT_INJECTION 71 * #endif 72 */ 73 74 #if DEBUG || lint 75 #define SD_FAULT_INJECTION 76 #endif 77 #define VERBOSE 1 78 #define SILENT 0 79 80 /* 81 * Structures for recording whether a device is fully open or closed. 82 * Assumptions: 83 * 84 * + There are only 8 (sparc) or 16 (x86) disk slices possible. 85 * + BLK, MNT, CHR, SWP don't change in some future release! 86 */ 87 88 #if defined(_SUNOS_VTOC_8) 89 90 #define SDUNIT_SHIFT 3 91 #define SDPART_MASK 7 92 #define NSDMAP NDKMAP 93 94 #elif defined(_SUNOS_VTOC_16) 95 96 #define SDUNIT_SHIFT 6 97 #define SDPART_MASK 63 98 #define NSDMAP (NDKMAP + FD_NUMPART + 1) 99 100 #else 101 #error "No VTOC format defined." 102 #endif 103 104 105 #define SDUNIT(dev) (getminor((dev)) >> SDUNIT_SHIFT) 106 #define SDPART(dev) (getminor((dev)) & SDPART_MASK) 107 108 /* 109 * maximum number of partitions the driver keeps track of; with 110 * EFI this can be larger than the number of partitions accessible 111 * through the minor nodes. It won't be used for keeping track 112 * of open counts, partition kstats, etc. 113 */ 114 #define MAXPART (NSDMAP + 1) 115 116 /* 117 * Macro to retrieve the DDI instance number from the given buf struct. 118 * The instance number is encoded in the minor device number. 119 */ 120 #define SD_GET_INSTANCE_FROM_BUF(bp) \ 121 (getminor((bp)->b_edev) >> SDUNIT_SHIFT) 122 123 124 125 struct ocinfo { 126 /* 127 * Types BLK, MNT, CHR, SWP, 128 * assumed to be types 0-3. 129 */ 130 uint64_t lyr_open[NSDMAP]; 131 uint64_t reg_open[OTYPCNT - 1]; 132 }; 133 134 #define OCSIZE sizeof (struct ocinfo) 135 136 union ocmap { 137 uchar_t chkd[OCSIZE]; 138 struct ocinfo rinfo; 139 }; 140 141 #define lyropen rinfo.lyr_open 142 #define regopen rinfo.reg_open 143 144 145 #define SD_CDB_GROUP0 0 146 #define SD_CDB_GROUP1 1 147 #define SD_CDB_GROUP5 2 148 #define SD_CDB_GROUP4 3 149 150 struct sd_cdbinfo { 151 uchar_t sc_grpcode; /* CDB group code */ 152 uchar_t sc_grpmask; /* CDB group code mask (for cmd opcode) */ 153 uint64_t sc_maxlba; /* Maximum logical block addr. supported */ 154 uint32_t sc_maxlen; /* Maximum transfer length supported */ 155 }; 156 157 158 159 /* 160 * The following declaration are for Non-512 byte block support for the 161 * removable devices. (ex - DVD RAM, MO). 162 * wm_state: This is an enumeration for the different states for 163 * manipalating write range list during the read-modify-write-operation. 164 */ 165 typedef enum { 166 SD_WM_CHK_LIST, /* Check list for overlapping writes */ 167 SD_WM_WAIT_MAP, /* Wait for an overlapping I/O to complete */ 168 SD_WM_LOCK_RANGE, /* Lock the range of lba to be written */ 169 SD_WM_DONE /* I/O complete */ 170 } wm_state; 171 172 /* 173 * sd_w_map: Every write I/O will get one w_map allocated for it which will tell 174 * the range on the media which is being written for that request. 175 */ 176 struct sd_w_map { 177 uint_t wm_start; /* Write start location */ 178 uint_t wm_end; /* Write end location */ 179 ushort_t wm_flags; /* State of the wmap */ 180 ushort_t wm_wanted_count; /* # of threads waiting for region */ 181 void *wm_private; /* Used to store bp->b_private */ 182 struct buf *wm_bufp; /* to store buf pointer */ 183 struct sd_w_map *wm_next; /* Forward pointed to sd_w_map */ 184 struct sd_w_map *wm_prev; /* Back pointer to sd_w_map */ 185 kcondvar_t wm_avail; /* Sleep on this, while not available */ 186 }; 187 188 _NOTE(MUTEX_PROTECTS_DATA(scsi_device::sd_mutex, sd_w_map::wm_flags)) 189 190 191 /* 192 * This is the struct for the layer-private data area for the 193 * mapblocksize layer. 194 */ 195 196 struct sd_mapblocksize_info { 197 void *mbs_oprivate; /* saved value of xb_private */ 198 struct buf *mbs_orig_bp; /* ptr to original bp */ 199 struct sd_w_map *mbs_wmp; /* ptr to write-map struct for RMW */ 200 ssize_t mbs_copy_offset; 201 int mbs_layer_index; /* chain index for RMW */ 202 }; 203 204 _NOTE(SCHEME_PROTECTS_DATA("unshared data", sd_mapblocksize_info)) 205 206 207 /* 208 * sd_lun: The main data structure for a scsi logical unit. 209 * Stored as the softstate structure for each device. 210 */ 211 212 struct sd_lun { 213 214 /* Back ptr to the SCSA scsi_device struct for this LUN */ 215 struct scsi_device *un_sd; 216 217 /* 218 * Support for Auto-Request sense capability 219 */ 220 struct buf *un_rqs_bp; /* ptr to request sense bp */ 221 struct scsi_pkt *un_rqs_pktp; /* ptr to request sense scsi_pkt */ 222 int un_sense_isbusy; /* Busy flag for RQS buf */ 223 224 /* 225 * These specify the layering chains to use with this instance. These 226 * are initialized according to the values in the sd_chain_index_map[] 227 * array. See the description of sd_chain_index_map[] for details. 228 */ 229 int un_buf_chain_type; 230 int un_uscsi_chain_type; 231 int un_direct_chain_type; 232 int un_priority_chain_type; 233 234 /* Head & tail ptrs to the queue of bufs awaiting transport */ 235 struct buf *un_waitq_headp; 236 struct buf *un_waitq_tailp; 237 238 /* Ptr to the buf currently being retried (NULL if none) */ 239 struct buf *un_retry_bp; 240 241 /* This tracks the last kstat update for the un_retry_bp buf */ 242 void (*un_retry_statp)(kstat_io_t *); 243 244 void *un_xbuf_attr; /* xbuf attribute struct */ 245 246 247 /* System logical block size, in bytes. (defaults to DEV_BSIZE.) */ 248 uint32_t un_sys_blocksize; 249 250 /* The size of a logical block on the target, in bytes. */ 251 uint32_t un_tgt_blocksize; 252 253 /* 254 * The number of logical blocks on the target. This is adjusted 255 * to be in terms of the block size specified by un_sys_blocksize 256 * (ie, the system block size). 257 */ 258 uint64_t un_blockcount; 259 260 /* 261 * Various configuration data 262 */ 263 uchar_t un_ctype; /* Controller type */ 264 char *un_node_type; /* minor node type */ 265 uchar_t un_interconnect_type; /* Interconnect for underlying HBA */ 266 267 uint_t un_notready_retry_count; /* Per disk notready retry count */ 268 uint_t un_busy_retry_count; /* Per disk BUSY retry count */ 269 270 uint_t un_retry_count; /* Per disk retry count */ 271 uint_t un_victim_retry_count; /* Per disk victim retry count */ 272 273 /* (4356701, 4367306) */ 274 uint_t un_reset_retry_count; /* max io retries before issuing reset */ 275 ushort_t un_reserve_release_time; /* reservation release timeout */ 276 277 uchar_t un_reservation_type; /* SCSI-3 or SCSI-2 */ 278 uint_t un_max_xfer_size; /* Maximum DMA transfer size */ 279 int un_partial_dma_supported; 280 int un_buf_breakup_supported; 281 282 int un_mincdb; /* Smallest CDB to use */ 283 int un_maxcdb; /* Largest CDB to use */ 284 int un_max_hba_cdb; /* Largest CDB supported by HBA */ 285 int un_status_len; 286 int un_pkt_flags; 287 288 /* 289 * Note: un_uscsi_timeout is a "mirror" of un_cmd_timeout, adjusted 290 * for ISCD(). Any updates to un_cmd_timeout MUST be reflected 291 * in un_uscsi_timeout as well! 292 */ 293 ushort_t un_cmd_timeout; /* Timeout for completion */ 294 ushort_t un_uscsi_timeout; /* Timeout for USCSI completion */ 295 ushort_t un_busy_timeout; /* Timeout for busy retry */ 296 297 /* 298 * Info on current states, statuses, etc. (Updated frequently) 299 */ 300 uchar_t un_state; /* current state */ 301 uchar_t un_last_state; /* last state */ 302 uchar_t un_last_pkt_reason; /* used to suppress multiple msgs */ 303 int un_tagflags; /* Pkt Flags for Tagged Queueing */ 304 short un_resvd_status; /* Reservation Status */ 305 ulong_t un_detach_count; /* !0 if executing detach routine */ 306 ulong_t un_layer_count; /* Current total # of layered opens */ 307 ulong_t un_opens_in_progress; /* Current # of threads in sdopen */ 308 309 ksema_t un_semoclose; /* serialize opens/closes */ 310 311 /* 312 * Control & status info for command throttling 313 */ 314 long un_ncmds_in_driver; /* number of cmds in driver */ 315 short un_ncmds_in_transport; /* number of cmds in transport */ 316 short un_throttle; /* max #cmds allowed in transport */ 317 short un_saved_throttle; /* saved value of un_throttle */ 318 short un_busy_throttle; /* saved un_throttle for BUSY */ 319 short un_min_throttle; /* min value of un_throttle */ 320 timeout_id_t un_reset_throttle_timeid; /* timeout(9F) handle */ 321 322 /* 323 * Multi-host (clustering) support 324 */ 325 opaque_t un_mhd_token; /* scsi watch request */ 326 timeout_id_t un_resvd_timeid; /* for resvd recover */ 327 328 /* Event callback resources (photon) */ 329 ddi_eventcookie_t un_insert_event; /* insert event */ 330 ddi_callback_id_t un_insert_cb_id; /* insert callback */ 331 ddi_eventcookie_t un_remove_event; /* remove event */ 332 ddi_callback_id_t un_remove_cb_id; /* remove callback */ 333 334 uint_t un_start_stop_cycle_page; /* Saves start/stop */ 335 /* cycle page */ 336 timeout_id_t un_dcvb_timeid; /* dlyd cv broadcast */ 337 338 /* 339 * Data structures for open counts, partition info, VTOC, 340 * stats, and other such bookkeeping info. 341 */ 342 union ocmap un_ocmap; /* open partition map */ 343 struct kstat *un_pstats[NSDMAP]; /* partition statistics */ 344 struct kstat *un_stats; /* disk statistics */ 345 kstat_t *un_errstats; /* for error statistics */ 346 uint64_t un_exclopen; /* exclusive open bitmask */ 347 ddi_devid_t un_devid; /* device id */ 348 uint_t un_vpd_page_mask; /* Supported VPD pages */ 349 350 /* 351 * Bit fields for various configuration/state/status info. 352 * Comments indicate the condition if the value of the 353 * variable is TRUE (nonzero). 354 */ 355 uint32_t 356 un_f_arq_enabled :1, /* Auto request sense is */ 357 /* currently enabled */ 358 un_f_blockcount_is_valid :1, /* The un_blockcount */ 359 /* value is currently valid */ 360 un_f_tgt_blocksize_is_valid :1, /* The un_tgt_blocksize */ 361 /* value is currently valid */ 362 un_f_allow_bus_device_reset :1, /* Driver may issue a BDR as */ 363 /* a part of error recovery. */ 364 un_f_is_fibre :1, /* The device supports fibre */ 365 /* channel */ 366 un_f_sync_cache_supported :1, /* sync cache cmd supported */ 367 /* supported */ 368 un_f_format_in_progress :1, /* The device is currently */ 369 /* executing a FORMAT cmd. */ 370 un_f_opt_queueing :1, /* Enable Command Queuing to */ 371 /* Host Adapter */ 372 un_f_opt_fab_devid :1, /* Disk has no valid/unique */ 373 /* serial number. */ 374 un_f_opt_disable_cache :1, /* Read/Write disk cache is */ 375 /* disabled. */ 376 un_f_cfg_is_atapi :1, /* This is an ATAPI device. */ 377 un_f_write_cache_enabled :1, /* device return success on */ 378 /* writes before transfer to */ 379 /* physical media complete */ 380 un_f_cfg_playmsf_bcd :1, /* Play Audio, BCD params. */ 381 un_f_cfg_readsub_bcd :1, /* READ SUBCHANNEL BCD resp. */ 382 un_f_cfg_read_toc_trk_bcd :1, /* track # is BCD */ 383 un_f_cfg_read_toc_addr_bcd :1, /* address is BCD */ 384 un_f_cfg_no_read_header :1, /* READ HEADER not supported */ 385 un_f_cfg_read_cd_xd4 :1, /* READ CD opcode is 0xd4 */ 386 un_f_mmc_cap :1, /* Device is MMC compliant */ 387 un_f_mmc_writable_media :1, /* writable media in device */ 388 un_f_dvdram_writable_device :1, /* DVDRAM device is writable */ 389 un_f_cfg_cdda :1, /* READ CDDA supported */ 390 un_f_cfg_tur_check :1, /* verify un_ncmds before tur */ 391 392 un_f_use_adaptive_throttle :1, /* enable/disable adaptive */ 393 /* throttling */ 394 un_f_pm_is_enabled :1, /* PM is enabled on this */ 395 /* instance */ 396 un_f_watcht_stopped :1, /* media watch thread flag */ 397 un_f_pkstats_enabled :1, /* Flag to determine if */ 398 /* partition kstats are */ 399 /* enabled. */ 400 un_f_disksort_disabled :1, /* Flag to disable disksort */ 401 un_f_lun_reset_enabled :1, /* Set if target supports */ 402 /* SCSI Logical Unit Reset */ 403 un_f_doorlock_supported :1, /* Device supports Doorlock */ 404 un_f_start_stop_supported :1, /* device has motor */ 405 un_f_reserved1 :1; 406 407 uint32_t 408 un_f_mboot_supported :1, /* mboot supported */ 409 un_f_is_hotpluggable :1, /* hotpluggable */ 410 un_f_has_removable_media :1, /* has removable media */ 411 un_f_non_devbsize_supported :1, /* non-512 blocksize */ 412 un_f_devid_supported :1, /* device ID supported */ 413 un_f_eject_media_supported :1, /* media can be ejected */ 414 un_f_chk_wp_open :1, /* check if write-protected */ 415 /* when being opened */ 416 un_f_descr_format_supported :1, /* support descriptor format */ 417 /* for sense data */ 418 un_f_check_start_stop :1, /* needs to check if */ 419 /* START-STOP command is */ 420 /* supported by hardware */ 421 /* before issuing it */ 422 un_f_monitor_media_state :1, /* need a watch thread to */ 423 /* monitor device state */ 424 un_f_attach_spinup :1, /* spin up once the */ 425 /* device is attached */ 426 un_f_log_sense_supported :1, /* support log sense */ 427 un_f_pm_supported :1, /* support power-management */ 428 un_f_cfg_is_lsi :1, /* Is LSI device, */ 429 /* default to NO */ 430 un_f_wcc_inprog :1, /* write cache change in */ 431 /* progress */ 432 un_f_ejecting :1, /* media is ejecting */ 433 un_f_suppress_cache_flush :1, /* supress flush on */ 434 /* write cache */ 435 un_f_sync_nv_supported :1, /* SYNC_NV */ 436 /* bit is supported */ 437 un_f_sync_cache_required :1, /* flag to check if */ 438 /* SYNC CACHE needs to be */ 439 /* sent in sdclose */ 440 un_f_devid_transport_defined :1, /* devid defined by transport */ 441 un_f_reserved :12; 442 443 /* Ptr to table of strings for ASC/ASCQ error message printing */ 444 struct scsi_asq_key_strings *un_additional_codes; 445 446 /* 447 * Power Management support. 448 * 449 * un_pm_mutex protects, un_pm_count, un_pm_timeid, un_pm_busy, 450 * un_pm_busy_cv, and un_pm_idle_timeid. 451 * It's not required that SD_MUTEX be acquired before acquiring 452 * un_pm_mutex, however if they must both be held 453 * then acquire SD_MUTEX first. 454 * 455 * un_pm_count is used to indicate PM state as follows: 456 * less than 0 the device is powered down, 457 * transition from 0 ==> 1, mark the device as busy via DDI 458 * transition from 1 ==> 0, mark the device as idle via DDI 459 */ 460 kmutex_t un_pm_mutex; 461 int un_pm_count; /* indicates pm state */ 462 timeout_id_t un_pm_timeid; /* timeout id for pm */ 463 uint_t un_pm_busy; 464 kcondvar_t un_pm_busy_cv; 465 short un_power_level; /* Power Level */ 466 uchar_t un_save_state; 467 kcondvar_t un_suspend_cv; /* power management */ 468 kcondvar_t un_disk_busy_cv; /* wait for IO completion */ 469 470 /* Resources used for media change callback support */ 471 kcondvar_t un_state_cv; /* Cond Var on mediastate */ 472 enum dkio_state un_mediastate; /* current media state */ 473 enum dkio_state un_specified_mediastate; /* expected state */ 474 opaque_t un_swr_token; /* scsi_watch request token */ 475 476 /* Non-512 byte block support */ 477 struct kmem_cache *un_wm_cache; /* fast alloc in non-512 write case */ 478 uint_t un_rmw_count; /* count of read-modify-writes */ 479 struct sd_w_map *un_wm; /* head of sd_w_map chain */ 480 481 /* For timeout callback to issue a START STOP UNIT command */ 482 timeout_id_t un_startstop_timeid; 483 484 /* Timeout callback handle for SD_PATH_DIRECT_PRIORITY cmd restarts */ 485 timeout_id_t un_direct_priority_timeid; 486 487 /* TRAN_FATAL_ERROR count. Cleared by TRAN_ACCEPT from scsi_transport */ 488 ulong_t un_tran_fatal_count; 489 490 timeout_id_t un_retry_timeid; 491 492 time_t un_pm_idle_time; 493 timeout_id_t un_pm_idle_timeid; 494 495 /* 496 * Count to determine if a Sonoma controller is in the process of 497 * failing over, and how many I/O's are failed with the 05/94/01 498 * sense code. 499 */ 500 uint_t un_sonoma_failure_count; 501 502 /* 503 * Support for failfast operation. 504 */ 505 struct buf *un_failfast_bp; 506 struct buf *un_failfast_headp; 507 struct buf *un_failfast_tailp; 508 uint32_t un_failfast_state; 509 /* Callback routine active counter */ 510 short un_in_callback; 511 512 kcondvar_t un_wcc_cv; /* synchronize changes to */ 513 /* un_f_write_cache_enabled */ 514 515 #ifdef SD_FAULT_INJECTION 516 /* SD Fault Injection */ 517 #define SD_FI_MAX_BUF 65536 518 #define SD_FI_MAX_ERROR 1024 519 kmutex_t un_fi_mutex; 520 uint_t sd_fi_buf_len; 521 char sd_fi_log[SD_FI_MAX_BUF]; 522 struct sd_fi_pkt *sd_fi_fifo_pkt[SD_FI_MAX_ERROR]; 523 struct sd_fi_xb *sd_fi_fifo_xb[SD_FI_MAX_ERROR]; 524 struct sd_fi_un *sd_fi_fifo_un[SD_FI_MAX_ERROR]; 525 struct sd_fi_arq *sd_fi_fifo_arq[SD_FI_MAX_ERROR]; 526 uint_t sd_fi_fifo_start; 527 uint_t sd_fi_fifo_end; 528 uint_t sd_injection_mask; 529 530 #endif 531 532 cmlb_handle_t un_cmlbhandle; 533 534 /* 535 * Pointer to internal struct sd_fm_internal in which 536 * will pass necessary information for FMA ereport posting. 537 */ 538 void *un_fm_private; 539 }; 540 541 #define SD_IS_VALID_LABEL(un) (cmlb_is_valid(un->un_cmlbhandle)) 542 543 /* 544 * Macros for conversions between "target" and "system" block sizes, and 545 * for conversion between block counts and byte counts. As used here, 546 * "system" block size refers to the block size used by the kernel/ 547 * filesystem (this includes the disk label). The "target" block size 548 * is the block size returned by the SCSI READ CAPACITY command. 549 * 550 * Note: These macros will round up to the next largest blocksize to accomodate 551 * the number of blocks specified. 552 */ 553 554 /* Convert a byte count to a number of target blocks */ 555 #define SD_BYTES2TGTBLOCKS(un, bytecount) \ 556 ((bytecount + (un->un_tgt_blocksize - 1))/un->un_tgt_blocksize) 557 558 /* Convert a target block count to a number of bytes */ 559 #define SD_TGTBLOCKS2BYTES(un, blockcount) \ 560 (blockcount * (un)->un_tgt_blocksize) 561 562 /* Convert a byte count to a number of system blocks */ 563 #define SD_BYTES2SYSBLOCKS(un, bytecount) \ 564 ((bytecount + (un->un_sys_blocksize - 1))/un->un_sys_blocksize) 565 566 /* Convert a system block count to a number of bytes */ 567 #define SD_SYSBLOCKS2BYTES(un, blockcount) \ 568 (blockcount * (un)->un_sys_blocksize) 569 570 /* 571 * Calculate the number of bytes needed to hold the requested number of bytes 572 * based upon the native target sector/block size 573 */ 574 #define SD_REQBYTES2TGTBYTES(un, bytecount) \ 575 (SD_BYTES2TGTBLOCKS(un, bytecount) * (un)->un_tgt_blocksize) 576 577 /* 578 * Calculate the byte offset from the beginning of the target block 579 * to the system block location. 580 */ 581 #define SD_TGTBYTEOFFSET(un, sysblk, tgtblk) \ 582 (SD_SYSBLOCKS2BYTES(un, sysblk) - SD_TGTBLOCKS2BYTES(un, tgtblk)) 583 584 /* 585 * Calculate the target block location from the system block location 586 */ 587 #define SD_SYS2TGTBLOCK(un, blockcnt) \ 588 ((blockcnt * un->un_sys_blocksize) / un->un_tgt_blocksize) 589 590 /* 591 * SD_DEFAULT_MAX_XFER_SIZE is the default value to bound the max xfer 592 * for physio, for devices without tagged queuing enabled. 593 * The default for devices with tagged queuing enabled is SD_MAX_XFER_SIZE 594 */ 595 #if defined(__i386) || defined(__amd64) 596 #define SD_DEFAULT_MAX_XFER_SIZE (256 * 1024) 597 #endif 598 #define SD_MAX_XFER_SIZE (1024 * 1024) 599 600 /* 601 * Warlock annotations 602 */ 603 _NOTE(MUTEX_PROTECTS_DATA(scsi_device::sd_mutex, sd_lun)) 604 _NOTE(READ_ONLY_DATA(sd_lun::un_sd)) 605 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_reservation_type)) 606 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_mincdb)) 607 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_maxcdb)) 608 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_max_hba_cdb)) 609 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_status_len)) 610 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_f_arq_enabled)) 611 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_ctype)) 612 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_cmlbhandle)) 613 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_fm_private)) 614 615 616 _NOTE(SCHEME_PROTECTS_DATA("safe sharing", 617 sd_lun::un_mhd_token 618 sd_lun::un_state 619 sd_lun::un_tagflags 620 sd_lun::un_f_format_in_progress 621 sd_lun::un_resvd_timeid 622 sd_lun::un_reset_throttle_timeid 623 sd_lun::un_startstop_timeid 624 sd_lun::un_dcvb_timeid 625 sd_lun::un_f_allow_bus_device_reset 626 sd_lun::un_sys_blocksize 627 sd_lun::un_tgt_blocksize 628 sd_lun::un_additional_codes)) 629 630 _NOTE(SCHEME_PROTECTS_DATA("stable data", 631 sd_lun::un_reserve_release_time 632 sd_lun::un_max_xfer_size 633 sd_lun::un_partial_dma_supported 634 sd_lun::un_buf_breakup_supported 635 sd_lun::un_f_is_fibre 636 sd_lun::un_node_type 637 sd_lun::un_buf_chain_type 638 sd_lun::un_uscsi_chain_type 639 sd_lun::un_direct_chain_type 640 sd_lun::un_priority_chain_type 641 sd_lun::un_xbuf_attr 642 sd_lun::un_cmd_timeout 643 sd_lun::un_pkt_flags)) 644 645 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", 646 block_descriptor 647 buf 648 cdrom_subchnl 649 cdrom_tocentry 650 cdrom_tochdr 651 cdrom_read 652 dk_cinfo 653 dk_devid 654 dk_label 655 dk_map 656 dk_temperature 657 mhioc_inkeys 658 mhioc_inresvs 659 mode_caching 660 mode_header 661 mode_speed 662 scsi_cdb 663 scsi_arq_status 664 scsi_extended_sense 665 scsi_inquiry 666 scsi_pkt 667 uio 668 uscsi_cmd)) 669 670 671 _NOTE(SCHEME_PROTECTS_DATA("stable data", scsi_device dk_cinfo)) 672 _NOTE(SCHEME_PROTECTS_DATA("unique per pkt", scsi_status scsi_cdb)) 673 674 _NOTE(MUTEX_PROTECTS_DATA(sd_lun::un_pm_mutex, sd_lun::un_pm_count 675 sd_lun::un_pm_timeid sd_lun::un_pm_busy sd_lun::un_pm_busy_cv 676 sd_lun::un_pm_idle_timeid)) 677 678 #ifdef SD_FAULT_INJECTION 679 _NOTE(MUTEX_PROTECTS_DATA(sd_lun::un_fi_mutex, 680 sd_lun::sd_fi_buf_len sd_lun::sd_fi_log)) 681 #endif 682 683 /* _NOTE(LOCK_ORDER(sd_lun::un_sd.sd_mutex sd_lun::un_pm_mutex)) */ 684 685 686 687 /* 688 * Referenced for frequently-accessed members of the unit structure 689 */ 690 #define SD_SCSI_DEVP(un) ((un)->un_sd) 691 #define SD_DEVINFO(un) ((un)->un_sd->sd_dev) 692 #define SD_INQUIRY(un) ((un)->un_sd->sd_inq) 693 #define SD_MUTEX(un) (&((un)->un_sd->sd_mutex)) 694 #define SD_ADDRESS(un) (&((un)->un_sd->sd_address)) 695 #define SD_GET_DEV(un) (sd_make_device(SD_DEVINFO(un))) 696 #define SD_FM_LOG(un) (((struct sd_fm_internal *)\ 697 ((un)->un_fm_private))->fm_log_level) 698 699 700 /* 701 * Values for un_ctype 702 */ 703 #define CTYPE_CDROM 0 704 #define CTYPE_MD21 1 /* Obsolete! */ 705 #define CTYPE_CCS 2 706 #define CTYPE_ROD 3 707 #define CTYPE_PXRE 4 /* Obsolete! */ 708 709 #define ISCD(un) ((un)->un_ctype == CTYPE_CDROM) 710 #define ISROD(un) ((un)->un_ctype == CTYPE_ROD) 711 #define ISPXRE(un) ((un)->un_ctype == CTYPE_PXRE) 712 713 /* 714 * This macro checks the vendor of the device to see if it is LSI. Because 715 * LSI has some devices out there that return 'Symbios' or 'SYMBIOS', we 716 * need to check for those also. 717 * 718 * This is used in some vendor specific checks. 719 */ 720 #define SD_IS_LSI(un) ((un)->un_f_cfg_is_lsi == TRUE) 721 722 /* 723 * Macros to check if the lun is a Sun T3 or a T4 724 */ 725 #define SD_IS_T3(un) \ 726 ((bcmp(SD_INQUIRY(un)->inq_vid, "SUN", 3) == 0) && \ 727 (bcmp(SD_INQUIRY(un)->inq_pid, "T3", 2) == 0)) 728 729 #define SD_IS_T4(un) \ 730 ((bcmp(SD_INQUIRY(un)->inq_vid, "SUN", 3) == 0) && \ 731 (bcmp(SD_INQUIRY(un)->inq_pid, "T4", 2) == 0)) 732 733 /* 734 * Macros for non-512 byte writes to removable devices. 735 */ 736 #define NOT_DEVBSIZE(un) \ 737 ((un)->un_tgt_blocksize != (un)->un_sys_blocksize) 738 739 /* 740 * Check that a write map, used for locking lba ranges for writes, is in 741 * the linked list. 742 */ 743 #define ONLIST(un, wmp) \ 744 (((un)->un_wm == (wmp)) || ((wmp)->wm_prev != NULL)) 745 746 /* 747 * Free a write map which is on list. Basically make sure that nobody is 748 * sleeping on it before freeing it. 749 */ 750 #define FREE_ONLIST_WMAP(un, wmp) \ 751 if (!(wmp)->wm_wanted_count) { \ 752 sd_free_inlist_wmap((un), (wmp)); \ 753 (wmp) = NULL; \ 754 } 755 756 #define CHK_N_FREEWMP(un, wmp) \ 757 if (!ONLIST((un), (wmp))) { \ 758 kmem_cache_free((un)->un_wm_cache, (wmp)); \ 759 (wmp) = NULL; \ 760 } else { \ 761 FREE_ONLIST_WMAP((un), (wmp)); \ 762 } 763 764 /* 765 * Values used to in wm_flags field of sd_w_map. 766 */ 767 #define SD_WTYPE_SIMPLE 0x001 /* Write aligned at blksize boundary */ 768 #define SD_WTYPE_RMW 0x002 /* Write requires read-modify-write */ 769 #define SD_WM_BUSY 0x100 /* write-map is busy */ 770 771 772 /* Device error kstats */ 773 struct sd_errstats { 774 struct kstat_named sd_softerrs; 775 struct kstat_named sd_harderrs; 776 struct kstat_named sd_transerrs; 777 struct kstat_named sd_vid; 778 struct kstat_named sd_pid; 779 struct kstat_named sd_revision; 780 struct kstat_named sd_serial; 781 struct kstat_named sd_capacity; 782 struct kstat_named sd_rq_media_err; 783 struct kstat_named sd_rq_ntrdy_err; 784 struct kstat_named sd_rq_nodev_err; 785 struct kstat_named sd_rq_recov_err; 786 struct kstat_named sd_rq_illrq_err; 787 struct kstat_named sd_rq_pfa_err; 788 }; 789 790 791 /* 792 * Structs and definitions for SCSI-3 Persistent Reservation 793 */ 794 typedef struct sd_prin_readkeys { 795 uint32_t generation; 796 uint32_t len; 797 mhioc_resv_key_t *keylist; 798 } sd_prin_readkeys_t; 799 800 typedef struct sd_readresv_desc { 801 mhioc_resv_key_t resvkey; 802 uint32_t scope_specific_addr; 803 uint8_t reserved_1; 804 #if defined(_BIT_FIELDS_LTOH) 805 uint8_t type:4, 806 scope:4; 807 #elif defined(_BIT_FIELDS_HTOL) 808 uint8_t scope:4, 809 type:4; 810 #else 811 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 812 #endif /* _BIT_FIELDS_LTOH */ 813 uint8_t reserved_2; 814 uint8_t reserved_3; 815 } sd_readresv_desc_t; 816 817 typedef struct sd_prin_readresv { 818 uint32_t generation; 819 uint32_t len; 820 sd_readresv_desc_t *readresv_desc; 821 } sd_prin_readresv_t; 822 823 typedef struct sd_prout { 824 uchar_t res_key[MHIOC_RESV_KEY_SIZE]; 825 uchar_t service_key[MHIOC_RESV_KEY_SIZE]; 826 uint32_t scope_address; 827 #if defined(_BIT_FIELDS_LTOH) 828 uchar_t aptpl:1, 829 reserved:7; 830 #elif defined(_BIT_FIELDS_HTOL) 831 uchar_t reserved:7, 832 aptpl:1; 833 #else 834 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 835 #endif /* _BIT_FIELDS_LTOH */ 836 uchar_t reserved_1; 837 uint16_t ext_len; 838 } sd_prout_t; 839 840 #define SD_READ_KEYS 0x00 841 #define SD_READ_RESV 0x01 842 843 #define SD_SCSI3_REGISTER 0x00 844 #define SD_SCSI3_RESERVE 0x01 845 #define SD_SCSI3_RELEASE 0x02 846 #define SD_SCSI3_PREEMPTANDABORT 0x05 847 #define SD_SCSI3_REGISTERANDIGNOREKEY 0x06 848 849 /* 850 * Note: The default init of un_reservation_type is to the value of '0' 851 * (from the ddi_softs_state_zalloc) which means it is defaulting to SCSI-3 852 * reservation type. This is ok because during attach we use a SCSI-3 853 * PRIORITY RESERVE IN command to determine the reservation type, and set 854 * un_reservation_type for all cases. 855 */ 856 #define SD_SCSI3_RESERVATION 0x0 857 #define SD_SCSI2_RESERVATION 0x1 858 #define SCSI3_RESV_DESC_LEN 16 859 860 /* 861 * Reservation Status's 862 */ 863 #define SD_RELEASE 0x0000 864 #define SD_RESERVE 0x0001 865 #define SD_TKOWN 0x0002 866 #define SD_LOST_RESERVE 0x0004 867 #define SD_FAILFAST 0x0080 868 #define SD_WANT_RESERVE 0x0100 869 #define SD_RESERVATION_CONFLICT 0x0200 870 #define SD_PRIORITY_RESERVE 0x0400 871 872 #define SD_TARGET_IS_UNRESERVED 0 873 #define SD_TARGET_IS_RESERVED 1 874 875 /* 876 * Save page in mode_select 877 */ 878 #define SD_DONTSAVE_PAGE 0 879 #define SD_SAVE_PAGE 1 880 881 /* 882 * Delay before reclaiming reservation is 6 seconds, in units of micro seconds 883 */ 884 #define SD_REINSTATE_RESV_DELAY 6000000 885 886 #define SD_MODE2_BLKSIZE 2336 /* bytes */ 887 888 /* 889 * Resource type definitions for multi host control operations. Specifically, 890 * queue and request definitions for reservation request handling between the 891 * scsi facility callback function (sd_mhd_watch_cb) and the reservation 892 * reclaim thread (sd_resv_reclaim_thread) 893 */ 894 struct sd_thr_request { 895 dev_t dev; 896 struct sd_thr_request *sd_thr_req_next; 897 }; 898 899 struct sd_resv_reclaim_request { 900 kthread_t *srq_resv_reclaim_thread; 901 struct sd_thr_request *srq_thr_req_head; 902 struct sd_thr_request *srq_thr_cur_req; 903 kcondvar_t srq_inprocess_cv; 904 kmutex_t srq_resv_reclaim_mutex; 905 kcondvar_t srq_resv_reclaim_cv; 906 }; 907 908 _NOTE(MUTEX_PROTECTS_DATA(sd_resv_reclaim_request::srq_resv_reclaim_mutex, 909 sd_resv_reclaim_request)) 910 _NOTE(SCHEME_PROTECTS_DATA("unshared data", sd_thr_request)) 911 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sd_prout)) 912 913 914 915 /* 916 * Driver Logging Components 917 * 918 * These components cover the functional entry points and areas of the 919 * driver. A component value is used for the entry point and utility 920 * functions used by the entry point. The common component value is used 921 * in those routines that are called from many areas of the driver. 922 * 923 * This can be done by adding the following two lines to /etc/system: 924 * set sd:sd_component_mask=0x00080000 925 * set sd:sd_level_mask=0x00000008 926 */ 927 #define SD_LOG_PROBE 0x00000001 928 #define SD_LOG_ATTACH_DETACH 0x00000002 929 #define SD_LOG_OPEN_CLOSE 0x00000004 930 #define SD_LOG_READ_WRITE 0x00000008 931 #define SD_LOG_POWER 0x00000010 932 #define SD_LOG_IOCTL 0x00000020 933 #define SD_LOG_IOCTL_MHD 0x00000040 934 #define SD_LOG_IOCTL_RMMEDIA 0x00000080 935 #define SD_LOG_IOCTL_DKIO 0x00000100 936 #define SD_LOG_IO 0x00000200 937 #define SD_LOG_IO_CORE 0x00000400 938 #define SD_LOG_IO_DISKSORT 0x00000800 939 #define SD_LOG_IO_PARTITION 0x00001000 940 #define SD_LOG_IO_RMMEDIA 0x00002000 941 #define SD_LOG_IO_CHKSUM 0x00004000 942 #define SD_LOG_IO_SDIOCTL 0x00008000 943 #define SD_LOG_IO_PM 0x00010000 944 #define SD_LOG_ERROR 0x00020000 945 #define SD_LOG_DUMP 0x00040000 946 #define SD_LOG_COMMON 0x00080000 947 #define SD_LOG_SDTEST 0x00100000 948 #define SD_LOG_IOERR 0x00200000 949 #define SD_LOG_IO_FAILFAST 0x00400000 950 951 /* Driver Logging Levels */ 952 #define SD_LOGMASK_ERROR 0x00000001 953 #define SD_LOGMASK_DUMP_MEM 0x00000002 954 #define SD_LOGMASK_INFO 0x00000004 955 #define SD_LOGMASK_TRACE 0x00000008 956 #define SD_LOGMASK_DIAG 0x00000010 957 958 /* Driver Logging Formats */ 959 #define SD_LOG_HEX 0x00000001 960 #define SD_LOG_CHAR 0x00000002 961 962 /* 963 * The following macros should be used to log driver debug information 964 * only. The output is filtered according to the component and level mask 965 * values. Non-debug information, such as driver warnings intended for 966 * the user should be logged via the scsi_log facility to ensure that 967 * they are not filtered. 968 */ 969 #if DEBUG || lint 970 #define SDDEBUG 971 972 /* SD_ERROR is called to log driver error conditions */ 973 #define SD_ERROR sd_log_err 974 975 /* SD_TRACE is called to log driver trace conditions (function entry/exit) */ 976 #define SD_TRACE sd_log_trace 977 978 /* SD_INFO is called to log general purpose driver info */ 979 #define SD_INFO sd_log_info 980 981 /* SD_DUMP_MEMORY is called to dump a data buffer to the log */ 982 #define SD_DUMP_MEMORY sd_dump_memory 983 984 /* RESET/ABORTS testing ioctls */ 985 #define DKIOCRESET (DKIOC|14) 986 #define DKIOCABORT (DKIOC|15) 987 988 #ifdef SD_FAULT_INJECTION 989 /* 990 * sd_fi_pkt replicates the variables that are exposed through pkt 991 * 992 * sd_fi_xb replicates the variables that are exposed through xb 993 * 994 * sd_fi_un replicates the variables that are exposed through un 995 * 996 * sd_fi_arq replicates the variables that are 997 * exposed for Auto-Reqeust-Sense 998 * 999 */ 1000 struct sd_fi_pkt { 1001 uint_t pkt_flags; /* flags */ 1002 uchar_t pkt_scbp; /* pointer to status block */ 1003 uchar_t pkt_cdbp; /* pointer to command block */ 1004 uint_t pkt_state; /* state of command */ 1005 uint_t pkt_statistics; /* statistics */ 1006 uchar_t pkt_reason; /* reason completion called */ 1007 }; 1008 1009 struct sd_fi_xb { 1010 daddr_t xb_blkno; 1011 ssize_t xb_dma_resid; 1012 short xb_retry_count; 1013 short xb_victim_retry_count; 1014 uchar_t xb_sense_status; 1015 uint_t xb_sense_state; 1016 ssize_t xb_sense_resid; 1017 uchar_t xb_sense_data[SENSE_LENGTH]; 1018 uchar_t es_code; 1019 uchar_t es_key; 1020 uchar_t es_add_code; 1021 uchar_t es_qual_code; 1022 }; 1023 1024 struct sd_fi_un { 1025 uchar_t inq_rmb; 1026 uchar_t un_ctype; 1027 uint_t un_notready_retry_count; 1028 uint_t un_reset_retry_count; 1029 uchar_t un_reservation_type; 1030 ushort_t un_notrdy_delay; 1031 short un_resvd_status; 1032 uint32_t 1033 un_f_arq_enabled, 1034 un_f_allow_bus_device_reset, 1035 un_f_opt_queueing; 1036 timeout_id_t un_restart_timeid; 1037 }; 1038 1039 struct sd_fi_arq { 1040 struct scsi_status sts_status; 1041 struct scsi_status sts_rqpkt_status; 1042 uchar_t sts_rqpkt_reason; 1043 uchar_t sts_rqpkt_resid; 1044 uint_t sts_rqpkt_state; 1045 uint_t sts_rqpkt_statistics; 1046 struct scsi_extended_sense sts_sensedata; 1047 }; 1048 1049 /* 1050 * Conditional set def 1051 */ 1052 #define SD_CONDSET(a, b, c, d) \ 1053 { \ 1054 a->c = ((fi_ ## b)->c); \ 1055 SD_INFO(SD_LOG_IOERR, un, \ 1056 "sd_fault_injection:" \ 1057 "setting %s to %d\n", \ 1058 d, ((fi_ ## b)->c)); \ 1059 } 1060 1061 /* SD FaultInjection ioctls */ 1062 #define SDIOC ('T'<<8) 1063 #define SDIOCSTART (SDIOC|1) 1064 #define SDIOCSTOP (SDIOC|2) 1065 #define SDIOCINSERTPKT (SDIOC|3) 1066 #define SDIOCINSERTXB (SDIOC|4) 1067 #define SDIOCINSERTUN (SDIOC|5) 1068 #define SDIOCINSERTARQ (SDIOC|6) 1069 #define SDIOCPUSH (SDIOC|7) 1070 #define SDIOCRETRIEVE (SDIOC|8) 1071 #define SDIOCRUN (SDIOC|9) 1072 #endif 1073 1074 #else 1075 1076 #undef SDDEBUG 1077 #define SD_ERROR { if (0) sd_log_err; } 1078 #define SD_TRACE { if (0) sd_log_trace; } 1079 #define SD_INFO { if (0) sd_log_info; } 1080 #define SD_DUMP_MEMORY { if (0) sd_dump_memory; } 1081 #endif 1082 1083 1084 /* 1085 * Miscellaneous macros 1086 */ 1087 1088 #define SD_USECTOHZ(x) (drv_usectohz((x)*1000000)) 1089 #define SD_GET_PKT_STATUS(pktp) ((*(pktp)->pkt_scbp) & STATUS_MASK) 1090 1091 #define SD_BIOERROR(bp, errcode) \ 1092 if ((bp)->b_resid == 0) { \ 1093 (bp)->b_resid = (bp)->b_bcount; \ 1094 } \ 1095 if ((bp)->b_error == 0) { \ 1096 bioerror(bp, errcode); \ 1097 } \ 1098 (bp)->b_flags |= B_ERROR; 1099 1100 #define SD_FILL_SCSI1_LUN_CDB(lunp, cdbp) \ 1101 if (! (lunp)->un_f_is_fibre && \ 1102 SD_INQUIRY((lunp))->inq_ansi == 0x01) { \ 1103 int _lun = ddi_prop_get_int(DDI_DEV_T_ANY, \ 1104 SD_DEVINFO((lunp)), DDI_PROP_DONTPASS, \ 1105 SCSI_ADDR_PROP_LUN, 0); \ 1106 if (_lun > 0) { \ 1107 (cdbp)->scc_lun = _lun; \ 1108 } \ 1109 } 1110 1111 #define SD_FILL_SCSI1_LUN(lunp, pktp) \ 1112 SD_FILL_SCSI1_LUN_CDB((lunp), (union scsi_cdb *)(pktp)->pkt_cdbp) 1113 1114 /* 1115 * Disk driver states 1116 */ 1117 1118 #define SD_STATE_NORMAL 0 1119 #define SD_STATE_OFFLINE 1 1120 #define SD_STATE_RWAIT 2 1121 #define SD_STATE_DUMPING 3 1122 #define SD_STATE_SUSPENDED 4 1123 #define SD_STATE_PM_CHANGING 5 1124 1125 /* 1126 * The table is to be interpreted as follows: The rows lists all the states 1127 * and each column is a state that a state in each row *can* reach. The entries 1128 * in the table list the event that cause that transition to take place. 1129 * For e.g.: To go from state RWAIT to SUSPENDED, event (d)-- which is the 1130 * invocation of DDI_SUSPEND-- has to take place. Note the same event could 1131 * cause the transition from one state to two different states. e.g., from 1132 * state SUSPENDED, when we get a DDI_RESUME, we just go back to the *last 1133 * state* whatever that might be. (NORMAL or OFFLINE). 1134 * 1135 * 1136 * State Transition Table: 1137 * 1138 * NORMAL OFFLINE RWAIT DUMPING SUSPENDED PM_SUSPENDED 1139 * 1140 * NORMAL - (a) (b) (c) (d) (h) 1141 * 1142 * OFFLINE (e) - (e) (c) (d) NP 1143 * 1144 * RWAIT (f) NP - (c) (d) (h) 1145 * 1146 * DUMPING NP NP NP - NP NP 1147 * 1148 * SUSPENDED (g) (g) (b) NP* - NP 1149 * 1150 * PM_SUSPENDED (i) NP (b) (c) (d) - 1151 * 1152 * NP : Not Possible. 1153 * (a): Disk does not respond. 1154 * (b): Packet Allocation Fails 1155 * (c): Panic - Crash dump 1156 * (d): DDI_SUSPEND is called. 1157 * (e): Disk has a successful I/O completed. 1158 * (f): sdrunout() calls sdstart() which sets it NORMAL 1159 * (g): DDI_RESUME is called. 1160 * (h): Device threshold exceeded pm framework called power 1161 * entry point or pm_lower_power called in detach. 1162 * (i): When new I/O come in. 1163 * * : When suspended, we dont change state during panic dump 1164 */ 1165 1166 1167 #define SD_MAX_THROTTLE 256 1168 #define SD_MIN_THROTTLE 8 1169 /* 1170 * Lowest valid max. and min. throttle value. 1171 * This is set to 2 because if un_min_throttle were allowed to be 1 then 1172 * un_throttle would never get set to a value less than un_min_throttle 1173 * (0 is a special case) which means it would never get set back to 1174 * un_saved_throttle in routine sd_restore_throttle(). 1175 */ 1176 #define SD_LOWEST_VALID_THROTTLE 2 1177 1178 1179 1180 /* Return codes for sd_send_polled_cmd() and sd_scsi_poll() */ 1181 #define SD_CMD_SUCCESS 0 1182 #define SD_CMD_FAILURE 1 1183 #define SD_CMD_RESERVATION_CONFLICT 2 1184 #define SD_CMD_ILLEGAL_REQUEST 3 1185 #define SD_CMD_BECOMING_READY 4 1186 #define SD_CMD_CHECK_CONDITION 5 1187 1188 /* Return codes for sd_ready_and_valid */ 1189 #define SD_READY_VALID 0 1190 #define SD_NOT_READY_VALID 1 1191 #define SD_RESERVED_BY_OTHERS 2 1192 1193 #define SD_PATH_STANDARD 0 1194 #define SD_PATH_DIRECT 1 1195 #define SD_PATH_DIRECT_PRIORITY 2 1196 1197 #define SD_UNIT_ATTENTION_RETRY 40 1198 1199 /* 1200 * The following three are bit flags passed into sd_send_scsi_TEST_UNIT_READY 1201 * to control specific behavior. 1202 */ 1203 #define SD_CHECK_FOR_MEDIA 0x01 1204 #define SD_DONT_RETRY_TUR 0x02 1205 #define SD_BYPASS_PM 0x04 1206 1207 #define SD_GROUP0_MAX_ADDRESS (0x1fffff) 1208 #define SD_GROUP0_MAXCOUNT (0xff) 1209 #define SD_GROUP1_MAX_ADDRESS (0xffffffff) 1210 #define SD_GROUP1_MAXCOUNT (0xffff) 1211 1212 #define SD_BECOMING_ACTIVE 0x01 1213 #define SD_REMOVAL_ALLOW 0 1214 #define SD_REMOVAL_PREVENT 1 1215 1216 #define SD_GET_PKT_OPCODE(pktp) \ 1217 (((union scsi_cdb *)((pktp)->pkt_cdbp))->cdb_un.cmd) 1218 1219 1220 #define SD_NO_RETRY_ISSUED 0 1221 #define SD_DELAYED_RETRY_ISSUED 1 1222 #define SD_IMMEDIATE_RETRY_ISSUED 2 1223 1224 #if defined(__i386) || defined(__amd64) 1225 #define SD_UPDATE_B_RESID(bp, pktp) \ 1226 ((bp)->b_resid += (pktp)->pkt_resid + (SD_GET_XBUF(bp)->xb_dma_resid)) 1227 #else 1228 #define SD_UPDATE_B_RESID(bp, pktp) \ 1229 ((bp)->b_resid += (pktp)->pkt_resid) 1230 #endif 1231 1232 1233 #define SD_RETRIES_MASK 0x00FF 1234 #define SD_RETRIES_NOCHECK 0x0000 1235 #define SD_RETRIES_STANDARD 0x0001 1236 #define SD_RETRIES_VICTIM 0x0002 1237 #define SD_RETRIES_BUSY 0x0003 1238 #define SD_RETRIES_UA 0x0004 1239 #define SD_RETRIES_ISOLATE 0x8000 1240 #define SD_RETRIES_FAILFAST 0x4000 1241 1242 #define SD_UPDATE_RESERVATION_STATUS(un, pktp) \ 1243 if (((pktp)->pkt_reason == CMD_RESET) || \ 1244 ((pktp)->pkt_statistics & (STAT_BUS_RESET | STAT_DEV_RESET))) { \ 1245 if (((un)->un_resvd_status & SD_RESERVE) == SD_RESERVE) { \ 1246 (un)->un_resvd_status |= \ 1247 (SD_LOST_RESERVE | SD_WANT_RESERVE); \ 1248 } \ 1249 } 1250 1251 #define SD_SENSE_DATA_IS_VALID 0 1252 #define SD_SENSE_DATA_IS_INVALID 1 1253 1254 /* 1255 * Delay (in seconds) before restoring the "throttle limit" back 1256 * to its maximum value. 1257 * 60 seconds is what we will wait for to reset the 1258 * throttle back to it SD_MAX_THROTTLE for TRAN_BUSY. 1259 * 10 seconds for STATUS_QFULL because QFULL will incrementally 1260 * increase the throttle limit until it reaches max value. 1261 */ 1262 #define SD_RESET_THROTTLE_TIMEOUT 60 1263 #define SD_QFULL_THROTTLE_TIMEOUT 10 1264 1265 #define SD_THROTTLE_TRAN_BUSY 0 1266 #define SD_THROTTLE_QFULL 1 1267 1268 #define SD_THROTTLE_RESET_INTERVAL \ 1269 (sd_reset_throttle_timeout * drv_usectohz(1000000)) 1270 1271 #define SD_QFULL_THROTTLE_RESET_INTERVAL \ 1272 (sd_qfull_throttle_timeout * drv_usectohz(1000000)) 1273 1274 1275 /* 1276 * xb_pkt_flags defines 1277 * SD_XB_DMA_FREED indicates the scsi_pkt has had its DMA resources freed 1278 * by a call to scsi_dmafree(9F). The resources must be reallocated before 1279 * before a call to scsi_transport can be made again. 1280 * SD_XB_USCSICMD indicates the scsi request is a uscsi request 1281 * SD_XB_INITPKT_MASK: since this field is also used to store flags for 1282 * a scsi_init_pkt(9F) call, we need a mask to make sure that we don't 1283 * pass any unintended bits to scsi_init_pkt(9F) (ugly hack). 1284 */ 1285 #define SD_XB_DMA_FREED 0x20000000 1286 #define SD_XB_USCSICMD 0x40000000 1287 #define SD_XB_INITPKT_MASK (PKT_CONSISTENT | PKT_DMA_PARTIAL) 1288 1289 /* 1290 * Extension for the buf(9s) struct that we receive from a higher 1291 * layer. Located by b_private in the buf(9S). (The previous contents 1292 * of b_private are saved & restored before calling biodone(9F).) 1293 */ 1294 struct sd_xbuf { 1295 1296 struct sd_lun *xb_un; /* Ptr to associated sd_lun */ 1297 struct scsi_pkt *xb_pktp; /* Ptr to associated scsi_pkt */ 1298 1299 /* 1300 * xb_pktinfo points to any optional data that may be needed 1301 * by the initpkt and/or destroypkt functions. Typical 1302 * use might be to point to a struct uscsi_cmd. 1303 */ 1304 void *xb_pktinfo; 1305 1306 /* 1307 * Layer-private data area. This may be used by any layer to store 1308 * layer-specific data on a per-IO basis. Typical usage is for an 1309 * iostart routine to save some info here for later use by its 1310 * partner iodone routine. This area may be used to hold data or 1311 * a pointer to a data block that is allocated/freed by the layer's 1312 * iostart/iodone routines. Allocation & management policy for the 1313 * layer-private area is defined & implemented by each specific 1314 * layer as required. 1315 * 1316 * IMPORTANT: Since a higher layer may depend on the value in the 1317 * xb_private field, each layer must ensure that it returns the 1318 * buf/xbuf to the next higher layer (via SD_NEXT_IODONE()) with 1319 * the SAME VALUE in xb_private as when the buf/xbuf was first 1320 * received by the layer's iostart routine. Typically this is done 1321 * by the iostart routine saving the contents of xb_private into 1322 * a place in the layer-private data area, and the iodone routine 1323 * restoring the value of xb_private before deallocating the 1324 * layer-private data block and calling SD_NEXT_IODONE(). Of course, 1325 * if a layer never modifies xb_private in a buf/xbuf from a higher 1326 * layer, there will be no need to restore the value. 1327 * 1328 * Note that in the case where a layer _creates_ a buf/xbuf (such as 1329 * by calling sd_shadow_buf_alloc()) to pass to a lower layer, it is 1330 * not necessary to preserve the contents of xb_private as there is 1331 * no higher layer dependency on the value of xb_private. Such a 1332 * buf/xbuf must be deallocated by the layer that allocated it and 1333 * must *NEVER* be passed up to a higher layer. 1334 */ 1335 void *xb_private; /* Layer-private data block */ 1336 1337 /* 1338 * We do not use the b_blkno provided in the buf(9S), as we need to 1339 * make adjustments to it in the driver, but it is not a field that 1340 * the driver owns or is free to modify. 1341 */ 1342 daddr_t xb_blkno; /* Absolute block # on target */ 1343 uint64_t xb_ena; /* ena for a specific SCSI command */ 1344 1345 int xb_chain_iostart; /* iostart side index */ 1346 int xb_chain_iodone; /* iodone side index */ 1347 int xb_pkt_flags; /* Flags for scsi_init_pkt() */ 1348 ssize_t xb_dma_resid; 1349 short xb_retry_count; 1350 short xb_victim_retry_count; 1351 short xb_ua_retry_count; /* unit_attention retry counter */ 1352 short xb_nr_retry_count; /* not ready retry counter */ 1353 1354 /* 1355 * Various status and data used when a RQS command is run on 1356 * the behalf of this command. 1357 */ 1358 struct buf *xb_sense_bp; /* back ptr to buf, for RQS */ 1359 uint_t xb_sense_state; /* scsi_pkt state of RQS command */ 1360 ssize_t xb_sense_resid; /* residual of RQS command */ 1361 uchar_t xb_sense_status; /* scsi status byte of RQS command */ 1362 uchar_t xb_sense_data[SENSE_LENGTH]; /* sense data from RQS cmd */ 1363 /* 1364 * Extra sense larger than SENSE_LENGTH will be allocated 1365 * right after xb_sense_data[SENSE_LENGTH]. Please do not 1366 * add any new field after it. 1367 */ 1368 }; 1369 1370 _NOTE(SCHEME_PROTECTS_DATA("unique per pkt", sd_xbuf)) 1371 1372 #define SD_PKT_ALLOC_SUCCESS 0 1373 #define SD_PKT_ALLOC_FAILURE 1 1374 #define SD_PKT_ALLOC_FAILURE_NO_DMA 2 1375 #define SD_PKT_ALLOC_FAILURE_PKT_TOO_SMALL 3 1376 #define SD_PKT_ALLOC_FAILURE_CDB_TOO_SMALL 4 1377 1378 #define SD_GET_XBUF(bp) ((struct sd_xbuf *)((bp)->b_private)) 1379 #define SD_GET_UN(bp) ((SD_GET_XBUF(bp))->xb_un) 1380 #define SD_GET_PKTP(bp) ((SD_GET_XBUF(bp))->xb_pktp) 1381 #define SD_GET_BLKNO(bp) ((SD_GET_XBUF(bp))->xb_blkno) 1382 1383 /* 1384 * Special-purpose struct for sd_send_scsi_cmd() to pass command-specific 1385 * data through the layering chains to sd_initpkt_for_uscsi(). 1386 */ 1387 struct sd_uscsi_info { 1388 int ui_flags; 1389 struct uscsi_cmd *ui_cmdp; 1390 /* 1391 * ui_dkc is used by sd_send_scsi_SYNCHRONIZE_CACHE() to allow 1392 * for async completion notification. 1393 */ 1394 struct dk_callback ui_dkc; 1395 /* 1396 * The following fields are to be used for FMA ereport generation. 1397 */ 1398 uchar_t ui_pkt_reason; 1399 uint32_t ui_pkt_state; 1400 uint32_t ui_pkt_statistics; 1401 uint64_t ui_lba; 1402 uint64_t ui_ena; 1403 }; 1404 1405 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sd_uscsi_info)) 1406 1407 /* 1408 * This structure is used to issue 'internal' command sequences from the 1409 * driver's attach(9E)/open(9E)/etc entry points. It provides a common context 1410 * for issuing command sequences, with the ability to issue a command 1411 * and provide expected/unexpected assessment of results at any code 1412 * level within the sd_ssc_t scope and preserve the information needed 1413 * produce telemetry for the problem, when needed, from a single 1414 * outer-most-scope point. 1415 * 1416 * The sd_ssc_t abstraction should result in well-structured code where 1417 * the basic code structure is not jeprodized by future localized improvement. 1418 * 1419 * o Scope for a sequence of commands. 1420 * o Within a scoped sequence of commands, provides a single top-level 1421 * location for initiating telementry generation from captured data. 1422 * o Provide a common place to capture command execution data and driver 1423 * assessment information for delivery to telemetry generation point. 1424 * o Mechanism to get device-as-detector (dad) and transport telemetry 1425 * information from interrupt context (sdintr) back to the internal 1426 * command 'driver-assessment' code. 1427 * o Ability to record assessment, and return information back to 1428 * top-level telemetry generation code when an unexpected condition 1429 * occurs. 1430 * o For code paths were an command itself was successful but 1431 * the data returned looks suspect, the ability to record 1432 * 'unexpected data' conditions. 1433 * o Record assessment of issuing the command and interpreting 1434 * the returned data for consumption by top-level ereport telemetry 1435 * generation code. 1436 * o All data required to produce telemetry available off single data 1437 * structure. 1438 */ 1439 typedef struct { 1440 struct sd_lun *ssc_un; 1441 struct uscsi_cmd *ssc_uscsi_cmd; 1442 struct sd_uscsi_info *ssc_uscsi_info; 1443 int ssc_flags; /* Bits for flags */ 1444 char ssc_info[1024]; /* Buffer holding for info */ 1445 } sd_ssc_t; 1446 1447 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sd_ssc_t)) 1448 1449 /* 1450 * This struct switch different 'type-of-assessment' 1451 * as an input argument for sd_ssc_assessment 1452 * 1453 * 1454 * in sd_send_scsi_XXX or upper-level 1455 * 1456 * - SD_FMT_IGNORE 1457 * when send uscsi command failed, and 1458 * the following code check sense data properly. 1459 * we use 'ignore' to let sd_ssc_assessment 1460 * trust current and do not do additional 1461 * checking for the uscsi command. 1462 * 1463 * - SD_FMT_IGNORE_COMPROMISE 1464 * when send uscsi command failed, and 1465 * the code does not check sense data or we don't 1466 * think the checking is 100% coverage. We mark it 1467 * as 'compromise' to indicate that we need to 1468 * enhance current code in the future. 1469 * 1470 * - SD_FMT_STATUS_CHECK 1471 * when send uscsi command failed and cause sd entries 1472 * failed finally, we need to send out real reason against 1473 * status of uscsi command no matter if there is sense back 1474 * or not. 1475 * 1476 * - SD_FMT_STANDARD 1477 * when send uscsi command succeeded, and 1478 * the code does not check sense data, we need to check 1479 * it to make sure there is no 'fault'. 1480 */ 1481 enum sd_type_assessment { 1482 SD_FMT_IGNORE = 0, 1483 SD_FMT_IGNORE_COMPROMISE, 1484 SD_FMT_STATUS_CHECK, 1485 SD_FMT_STANDARD 1486 }; 1487 1488 /* 1489 * The following declaration are used as hints of severities when posting 1490 * SCSI FMA ereport. 1491 * - SD_FM_DRV_FATAL 1492 * When posting ereport with SD_FM_DRV_FATAL, the payload 1493 * "driver-assessment" will be "fail" or "fatal" depending on the 1494 * sense-key value. If driver-assessment is "fail", it will be 1495 * propagated to an upset, otherwise, a fault will be propagated. 1496 * - SD_FM_DRV_RETRY 1497 * When posting ereport with SD_FM_DRV_RETRY, the payload 1498 * "driver-assessment" will be "retry", and it will be propagated to an 1499 * upset. 1500 * - SD_FM_DRV_RECOVERY 1501 * When posting ereport with SD_FM_DRV_RECOVERY, the payload 1502 * "driver-assessment" will be "recovered", and it will be propagated to 1503 * an upset. 1504 * - SD_FM_DRV_NOTICE 1505 * When posting ereport with SD_FM_DRV_NOTICE, the payload 1506 * "driver-assessment" will be "info", and it will be propagated to an 1507 * upset. 1508 */ 1509 enum sd_driver_assessment { 1510 SD_FM_DRV_FATAL = 0, 1511 SD_FM_DRV_RETRY, 1512 SD_FM_DRV_RECOVERY, 1513 SD_FM_DRV_NOTICE 1514 }; 1515 1516 /* 1517 * The following structure is used as a buffer when posting SCSI FMA 1518 * ereport for raw i/o. It will be allocated per sd_lun when entering 1519 * sd_unit_attach and will be deallocated when entering sd_unit_detach. 1520 */ 1521 struct sd_fm_internal { 1522 sd_ssc_t fm_ssc; 1523 struct uscsi_cmd fm_ucmd; 1524 struct sd_uscsi_info fm_uinfo; 1525 int fm_log_level; 1526 }; 1527 1528 /* 1529 * Bits in ssc_flags 1530 * sd_ssc_init will mark ssc_flags = SSC_FLAGS_UNKNOWN 1531 * sd_ssc_send will mark ssc_flags = SSC_FLAGS_CMD_ISSUED & 1532 * SSC_FLAGS_NEED_ASSESSMENT 1533 * sd_ssc_assessment will clear SSC_FLAGS_CMD_ISSUED and 1534 * SSC_FLAGS_NEED_ASSESSMENT bits of ssc_flags. 1535 * SSC_FLAGS_CMD_ISSUED is to indicate whether the SCSI command has been 1536 * sent out. 1537 * SSC_FLAGS_NEED_ASSESSMENT is to guarantee we will not miss any 1538 * assessment point. 1539 */ 1540 #define SSC_FLAGS_UNKNOWN 0x00000000 1541 #define SSC_FLAGS_CMD_ISSUED 0x00000001 1542 #define SSC_FLAGS_NEED_ASSESSMENT 0x00000002 1543 #define SSC_FLAGS_TRAN_ABORT 0x00000004 1544 1545 /* 1546 * The following bits in ssc_flags are for detecting unexpected data. 1547 */ 1548 #define SSC_FLAGS_INVALID_PKT_REASON 0x00000010 1549 #define SSC_FLAGS_INVALID_STATUS 0x00000020 1550 #define SSC_FLAGS_INVALID_SENSE 0x00000040 1551 #define SSC_FLAGS_INVALID_DATA 0x00000080 1552 1553 /* 1554 * The following are the values available for sd_fm_internal::fm_log_level. 1555 * SD_FM_LOG_NSUP The driver will log things in traditional way as if 1556 * the SCSI FMA feature is unavailable. 1557 * SD_FM_LOG_SILENT The driver will not print out syslog for FMA error 1558 * telemetry, all the error telemetries will go into 1559 * FMA error log. 1560 * SD_FM_LOG_EREPORT The driver will both print the FMA error telemetry 1561 * and post the error report, but the traditional 1562 * syslog for error telemetry will be suppressed. 1563 */ 1564 #define SD_FM_LOG_NSUP 0 1565 #define SD_FM_LOG_SILENT 1 1566 #define SD_FM_LOG_EREPORT 2 1567 1568 /* 1569 * Macros and definitions for driver kstats and errstats 1570 * 1571 * Some third-party layered drivers (they know who they are) do not maintain 1572 * their open/close counts correctly which causes our kstat reporting to get 1573 * messed up & results in panics. These macros will update the driver kstats 1574 * only if the counts are valid. 1575 */ 1576 #define SD_UPDATE_COMMON_KSTATS(kstat_function, kstatp) \ 1577 if ((kstat_function) == kstat_runq_exit || \ 1578 ((kstat_function) == kstat_runq_back_to_waitq)) { \ 1579 if (((kstat_io_t *)(kstatp))->rcnt) { \ 1580 kstat_function((kstatp)); \ 1581 } else { \ 1582 cmn_err(CE_WARN, \ 1583 "kstat rcnt == 0 when exiting runq, please check\n"); \ 1584 } \ 1585 } else if ((kstat_function) == kstat_waitq_exit || \ 1586 ((kstat_function) == kstat_waitq_to_runq)) { \ 1587 if (((kstat_io_t *)(kstatp))->wcnt) { \ 1588 kstat_function(kstatp); \ 1589 } else { \ 1590 cmn_err(CE_WARN, \ 1591 "kstat wcnt == 0 when exiting waitq, please check\n"); \ 1592 } \ 1593 } else { \ 1594 kstat_function(kstatp); \ 1595 } 1596 1597 #define SD_UPDATE_KSTATS(un, kstat_function, bp) \ 1598 ASSERT(SD_GET_XBUF(bp) != NULL); \ 1599 if (SD_IS_BUFIO(SD_GET_XBUF(bp))) { \ 1600 struct kstat *pksp = \ 1601 (un)->un_pstats[SDPART((bp)->b_edev)]; \ 1602 ASSERT(mutex_owned(SD_MUTEX(un))); \ 1603 if ((un)->un_stats != NULL) { \ 1604 kstat_io_t *kip = KSTAT_IO_PTR((un)->un_stats); \ 1605 SD_UPDATE_COMMON_KSTATS(kstat_function, kip); \ 1606 } \ 1607 if (pksp != NULL) { \ 1608 kstat_io_t *kip = KSTAT_IO_PTR(pksp); \ 1609 SD_UPDATE_COMMON_KSTATS(kstat_function, kip); \ 1610 } \ 1611 } 1612 1613 #define SD_UPDATE_ERRSTATS(un, x) \ 1614 if ((un)->un_errstats != NULL) { \ 1615 struct sd_errstats *stp; \ 1616 ASSERT(mutex_owned(SD_MUTEX(un))); \ 1617 stp = (struct sd_errstats *)(un)->un_errstats->ks_data; \ 1618 stp->x.value.ui32++; \ 1619 } 1620 1621 #define SD_UPDATE_RDWR_STATS(un, bp) \ 1622 if ((un)->un_stats != NULL) { \ 1623 kstat_io_t *kip = KSTAT_IO_PTR((un)->un_stats); \ 1624 size_t n_done = (bp)->b_bcount - (bp)->b_resid; \ 1625 if ((bp)->b_flags & B_READ) { \ 1626 kip->reads++; \ 1627 kip->nread += n_done; \ 1628 } else { \ 1629 kip->writes++; \ 1630 kip->nwritten += n_done; \ 1631 } \ 1632 } 1633 1634 #define SD_UPDATE_PARTITION_STATS(un, bp) \ 1635 { \ 1636 struct kstat *pksp = (un)->un_pstats[SDPART((bp)->b_edev)]; \ 1637 if (pksp != NULL) { \ 1638 kstat_io_t *kip = KSTAT_IO_PTR(pksp); \ 1639 size_t n_done = (bp)->b_bcount - (bp)->b_resid; \ 1640 if ((bp)->b_flags & B_READ) { \ 1641 kip->reads++; \ 1642 kip->nread += n_done; \ 1643 } else { \ 1644 kip->writes++; \ 1645 kip->nwritten += n_done; \ 1646 } \ 1647 } \ 1648 } 1649 1650 1651 #endif /* defined(_KERNEL) || defined(_KMEMUSER) */ 1652 1653 1654 /* 1655 * 60 seconds is a *very* reasonable amount of time for most slow CD 1656 * operations. 1657 */ 1658 #define SD_IO_TIME 60 1659 1660 /* 1661 * 2 hours is an excessively reasonable amount of time for format operations. 1662 */ 1663 #define SD_FMT_TIME (120 * 60) 1664 1665 /* 1666 * 5 seconds is what we'll wait if we get a Busy Status back 1667 */ 1668 #define SD_BSY_TIMEOUT (drv_usectohz(5 * 1000000)) 1669 1670 /* 1671 * 100 msec. is what we'll wait if we get Unit Attention. 1672 */ 1673 #define SD_UA_RETRY_DELAY (drv_usectohz((clock_t)100000)) 1674 1675 /* 1676 * 100 msec. is what we'll wait for restarted commands. 1677 */ 1678 #define SD_RESTART_TIMEOUT (drv_usectohz((clock_t)100000)) 1679 1680 /* 1681 * 100 msec. is what we'll wait for certain retries for fibre channel 1682 * targets, 0 msec for parallel SCSI. 1683 */ 1684 #if defined(__fibre) 1685 #define SD_RETRY_DELAY (drv_usectohz(100000)) 1686 #else 1687 #define SD_RETRY_DELAY ((clock_t)0) 1688 #endif 1689 1690 /* 1691 * 60 seconds is what we will wait for to reset the 1692 * throttle back to it SD_MAX_THROTTLE. 1693 */ 1694 #define SD_RESET_THROTTLE_TIMEOUT 60 1695 1696 /* 1697 * Number of times we'll retry a normal operation. 1698 * 1699 * This includes retries due to transport failure 1700 * (need to distinguish between Target and Transport failure) 1701 * 1702 */ 1703 #if defined(__fibre) 1704 #define SD_RETRY_COUNT 3 1705 #else 1706 #define SD_RETRY_COUNT 5 1707 #endif 1708 1709 /* 1710 * Number of times we will retry for unit attention. 1711 */ 1712 #define SD_UA_RETRY_COUNT 600 1713 1714 #define SD_VICTIM_RETRY_COUNT(un) (un->un_victim_retry_count) 1715 #define CD_NOT_READY_RETRY_COUNT(un) (un->un_retry_count * 2) 1716 #define DISK_NOT_READY_RETRY_COUNT(un) (un->un_retry_count / 2) 1717 1718 1719 /* 1720 * Maximum number of units we can support 1721 * (controlled by room in minor device byte) 1722 * 1723 * Note: this value is out of date. 1724 */ 1725 #define SD_MAXUNIT 32 1726 1727 /* 1728 * 30 seconds is what we will wait for the IO to finish 1729 * before we fail the DDI_SUSPEND 1730 */ 1731 #define SD_WAIT_CMDS_COMPLETE 30 1732 1733 /* 1734 * Prevent/allow media removal flags 1735 */ 1736 #define SD_REMOVAL_ALLOW 0 1737 #define SD_REMOVAL_PREVENT 1 1738 1739 1740 /* 1741 * Drive Types (and characteristics) 1742 */ 1743 #define VIDMAX 8 1744 #define PIDMAX 16 1745 1746 1747 /* 1748 * The following #defines and type definitions for the property 1749 * processing component of the sd driver. 1750 */ 1751 1752 1753 /* Miscellaneous Definitions */ 1754 #define SD_CONF_VERSION_1 1 1755 #define SD_CONF_NOT_USED 32 1756 1757 /* 1758 * Return values from "pm-capable" property 1759 */ 1760 #define SD_PM_CAPABLE_UNDEFINED -1 1761 #define SD_PM_CAPABLE_FALSE 0 1762 #define SD_PM_CAPABLE_TRUE 1 1763 1764 /* 1765 * Property data values used in static configuration table 1766 * These are all based on device characteristics. 1767 * For fibre channel devices, the throttle value is usually 1768 * derived from the devices cmd Q depth divided by the number 1769 * of supported initiators. 1770 */ 1771 #define ELITE_THROTTLE_VALUE 10 1772 #define SEAGATE_THROTTLE_VALUE 15 1773 #define IBM_THROTTLE_VALUE 15 1774 #define ST31200N_THROTTLE_VALUE 8 1775 #define FUJITSU_THROTTLE_VALUE 15 1776 #define SYMBIOS_THROTTLE_VALUE 16 1777 #define SYMBIOS_NOTREADY_RETRIES 24 1778 #define LSI_THROTTLE_VALUE 16 1779 #define LSI_NOTREADY_RETRIES 24 1780 #define LSI_OEM_NOTREADY_RETRIES 36 1781 #define PURPLE_THROTTLE_VALUE 64 1782 #define PURPLE_BUSY_RETRIES 60 1783 #define PURPLE_RESET_RETRY_COUNT 36 1784 #define PURPLE_RESERVE_RELEASE_TIME 60 1785 #define SVE_BUSY_RETRIES 60 1786 #define SVE_RESET_RETRY_COUNT 36 1787 #define SVE_RESERVE_RELEASE_TIME 60 1788 #define SVE_THROTTLE_VALUE 10 1789 #define SVE_MIN_THROTTLE_VALUE 2 1790 #define SVE_DISKSORT_DISABLED_FLAG 1 1791 #define MASERATI_DISKSORT_DISABLED_FLAG 1 1792 #define MASERATI_LUN_RESET_ENABLED_FLAG 1 1793 #define PIRUS_THROTTLE_VALUE 64 1794 #define PIRUS_NRR_COUNT 60 1795 #define PIRUS_BUSY_RETRIES 60 1796 #define PIRUS_RESET_RETRY_COUNT 36 1797 #define PIRUS_MIN_THROTTLE_VALUE 16 1798 #define PIRUS_DISKSORT_DISABLED_FLAG 0 1799 #define PIRUS_LUN_RESET_ENABLED_FLAG 1 1800 1801 /* 1802 * Driver Property Bit Flag definitions 1803 * 1804 * Unfortunately, for historical reasons, the bit-flag definitions are 1805 * different on SPARC, INTEL, & FIBRE platforms. 1806 */ 1807 1808 /* 1809 * Bit flag telling driver to set throttle from sd.conf sd-config-list 1810 * and driver table. 1811 * 1812 * The max throttle (q-depth) property implementation is for support of 1813 * fibre channel devices that can drop an i/o request when a queue fills 1814 * up. The number of commands sent to the disk from this driver is 1815 * regulated such that queue overflows are avoided. 1816 */ 1817 #define SD_CONF_SET_THROTTLE 0 1818 #define SD_CONF_BSET_THROTTLE (1 << SD_CONF_SET_THROTTLE) 1819 1820 /* 1821 * Bit flag telling driver to set the controller type from sd.conf 1822 * sd-config-list and driver table. 1823 */ 1824 #if defined(__i386) || defined(__amd64) 1825 #define SD_CONF_SET_CTYPE 1 1826 #elif defined(__fibre) 1827 #define SD_CONF_SET_CTYPE 5 1828 #else 1829 #define SD_CONF_SET_CTYPE 1 1830 #endif 1831 #define SD_CONF_BSET_CTYPE (1 << SD_CONF_SET_CTYPE) 1832 1833 /* 1834 * Bit flag telling driver to set the not ready retry count for a device from 1835 * sd.conf sd-config-list and driver table. 1836 */ 1837 #if defined(__i386) || defined(__amd64) 1838 #define SD_CONF_SET_NOTREADY_RETRIES 10 1839 #elif defined(__fibre) 1840 #define SD_CONF_SET_NOTREADY_RETRIES 1 1841 #else 1842 #define SD_CONF_SET_NOTREADY_RETRIES 2 1843 #endif 1844 #define SD_CONF_BSET_NRR_COUNT (1 << SD_CONF_SET_NOTREADY_RETRIES) 1845 1846 /* 1847 * Bit flag telling driver to set SCSI status BUSY Retries from sd.conf 1848 * sd-config-list and driver table. 1849 */ 1850 #if defined(__i386) || defined(__amd64) 1851 #define SD_CONF_SET_BUSY_RETRIES 11 1852 #elif defined(__fibre) 1853 #define SD_CONF_SET_BUSY_RETRIES 2 1854 #else 1855 #define SD_CONF_SET_BUSY_RETRIES 5 1856 #endif 1857 #define SD_CONF_BSET_BSY_RETRY_COUNT (1 << SD_CONF_SET_BUSY_RETRIES) 1858 1859 /* 1860 * Bit flag telling driver that device does not have a valid/unique serial 1861 * number. 1862 */ 1863 #if defined(__i386) || defined(__amd64) 1864 #define SD_CONF_SET_FAB_DEVID 2 1865 #else 1866 #define SD_CONF_SET_FAB_DEVID 3 1867 #endif 1868 #define SD_CONF_BSET_FAB_DEVID (1 << SD_CONF_SET_FAB_DEVID) 1869 1870 /* 1871 * Bit flag telling driver to disable all caching for disk device. 1872 */ 1873 #if defined(__i386) || defined(__amd64) 1874 #define SD_CONF_SET_NOCACHE 3 1875 #else 1876 #define SD_CONF_SET_NOCACHE 4 1877 #endif 1878 #define SD_CONF_BSET_NOCACHE (1 << SD_CONF_SET_NOCACHE) 1879 1880 /* 1881 * Bit flag telling driver that the PLAY AUDIO command requires parms in BCD 1882 * format rather than binary. 1883 */ 1884 #if defined(__i386) || defined(__amd64) 1885 #define SD_CONF_SET_PLAYMSF_BCD 4 1886 #else 1887 #define SD_CONF_SET_PLAYMSF_BCD 6 1888 #endif 1889 #define SD_CONF_BSET_PLAYMSF_BCD (1 << SD_CONF_SET_PLAYMSF_BCD) 1890 1891 /* 1892 * Bit flag telling driver that the response from the READ SUBCHANNEL command 1893 * has BCD fields rather than binary. 1894 */ 1895 #if defined(__i386) || defined(__amd64) 1896 #define SD_CONF_SET_READSUB_BCD 5 1897 #else 1898 #define SD_CONF_SET_READSUB_BCD 7 1899 #endif 1900 #define SD_CONF_BSET_READSUB_BCD (1 << SD_CONF_SET_READSUB_BCD) 1901 1902 /* 1903 * Bit in flags telling driver that the track number fields in the READ TOC 1904 * request and respone are in BCD rather than binary. 1905 */ 1906 #if defined(__i386) || defined(__amd64) 1907 #define SD_CONF_SET_READ_TOC_TRK_BCD 6 1908 #else 1909 #define SD_CONF_SET_READ_TOC_TRK_BCD 8 1910 #endif 1911 #define SD_CONF_BSET_READ_TOC_TRK_BCD (1 << SD_CONF_SET_READ_TOC_TRK_BCD) 1912 1913 /* 1914 * Bit flag telling driver that the address fields in the READ TOC request and 1915 * respone are in BCD rather than binary. 1916 */ 1917 #if defined(__i386) || defined(__amd64) 1918 #define SD_CONF_SET_READ_TOC_ADDR_BCD 7 1919 #else 1920 #define SD_CONF_SET_READ_TOC_ADDR_BCD 9 1921 #endif 1922 #define SD_CONF_BSET_READ_TOC_ADDR_BCD (1 << SD_CONF_SET_READ_TOC_ADDR_BCD) 1923 1924 /* 1925 * Bit flag telling the driver that the device doesn't support the READ HEADER 1926 * command. 1927 */ 1928 #if defined(__i386) || defined(__amd64) 1929 #define SD_CONF_SET_NO_READ_HEADER 8 1930 #else 1931 #define SD_CONF_SET_NO_READ_HEADER 10 1932 #endif 1933 #define SD_CONF_BSET_NO_READ_HEADER (1 << SD_CONF_SET_NO_READ_HEADER) 1934 1935 /* 1936 * Bit flag telling the driver that for the READ CD command the device uses 1937 * opcode 0xd4 rather than 0xbe. 1938 */ 1939 #if defined(__i386) || defined(__amd64) 1940 #define SD_CONF_SET_READ_CD_XD4 9 1941 #else 1942 #define SD_CONF_SET_READ_CD_XD4 11 1943 #endif 1944 #define SD_CONF_BSET_READ_CD_XD4 (1 << SD_CONF_SET_READ_CD_XD4) 1945 1946 /* 1947 * Bit flag telling the driver to set SCSI status Reset Retries 1948 * (un_reset_retry_count) from sd.conf sd-config-list and driver table (4356701) 1949 */ 1950 #define SD_CONF_SET_RST_RETRIES 12 1951 #define SD_CONF_BSET_RST_RETRIES (1 << SD_CONF_SET_RST_RETRIES) 1952 1953 /* 1954 * Bit flag telling the driver to set the reservation release timeout value 1955 * from sd.conf sd-config-list and driver table. (4367306) 1956 */ 1957 #define SD_CONF_SET_RSV_REL_TIME 13 1958 #define SD_CONF_BSET_RSV_REL_TIME (1 << SD_CONF_SET_RSV_REL_TIME) 1959 1960 /* 1961 * Bit flag telling the driver to verify that no commands are pending for a 1962 * device before issuing a Test Unit Ready. This is a fw workaround for Seagate 1963 * eliteI drives. (4392016) 1964 */ 1965 #define SD_CONF_SET_TUR_CHECK 14 1966 #define SD_CONF_BSET_TUR_CHECK (1 << SD_CONF_SET_TUR_CHECK) 1967 1968 /* 1969 * Bit in flags telling driver to set min. throttle from ssd.conf 1970 * ssd-config-list and driver table. 1971 */ 1972 #define SD_CONF_SET_MIN_THROTTLE 15 1973 #define SD_CONF_BSET_MIN_THROTTLE (1 << SD_CONF_SET_MIN_THROTTLE) 1974 1975 /* 1976 * Bit in flags telling driver to set disksort disable flag from ssd.conf 1977 * ssd-config-list and driver table. 1978 */ 1979 #define SD_CONF_SET_DISKSORT_DISABLED 16 1980 #define SD_CONF_BSET_DISKSORT_DISABLED (1 << SD_CONF_SET_DISKSORT_DISABLED) 1981 1982 /* 1983 * Bit in flags telling driver to set LUN Reset enable flag from [s]sd.conf 1984 * [s]sd-config-list and driver table. 1985 */ 1986 #define SD_CONF_SET_LUN_RESET_ENABLED 17 1987 #define SD_CONF_BSET_LUN_RESET_ENABLED (1 << SD_CONF_SET_LUN_RESET_ENABLED) 1988 1989 /* 1990 * Bit in flags telling driver that the write cache on the device is 1991 * non-volatile. 1992 */ 1993 #define SD_CONF_SET_CACHE_IS_NV 18 1994 #define SD_CONF_BSET_CACHE_IS_NV (1 << SD_CONF_SET_CACHE_IS_NV) 1995 1996 /* 1997 * This is the number of items currently settable in the sd.conf 1998 * sd-config-list. The mask value is defined for parameter checking. The 1999 * item count and mask should be updated when new properties are added. 2000 */ 2001 #define SD_CONF_MAX_ITEMS 19 2002 #define SD_CONF_BIT_MASK 0x0007FFFF 2003 2004 typedef struct { 2005 int sdt_throttle; 2006 int sdt_ctype; 2007 int sdt_not_rdy_retries; 2008 int sdt_busy_retries; 2009 int sdt_reset_retries; 2010 int sdt_reserv_rel_time; 2011 int sdt_min_throttle; 2012 int sdt_disk_sort_dis; 2013 int sdt_lun_reset_enable; 2014 int sdt_suppress_cache_flush; 2015 } sd_tunables; 2016 2017 /* Type definition for static configuration table entries */ 2018 typedef struct sd_disk_config { 2019 char device_id[25]; 2020 uint_t flags; 2021 sd_tunables *properties; 2022 } sd_disk_config_t; 2023 2024 /* 2025 * byte 4 options for 1bh command 2026 */ 2027 #define SD_TARGET_STOP 0x00 2028 #define SD_TARGET_START 0x01 2029 #define SD_TARGET_EJECT 0x02 2030 #define SD_TARGET_CLOSE 0x03 2031 2032 2033 #define SD_MODE_SENSE_PAGE3_CODE 0x03 2034 #define SD_MODE_SENSE_PAGE4_CODE 0x04 2035 2036 #define SD_MODE_SENSE_PAGE3_LENGTH \ 2037 (sizeof (struct mode_format) + MODE_PARAM_LENGTH) 2038 #define SD_MODE_SENSE_PAGE4_LENGTH \ 2039 (sizeof (struct mode_geometry) + MODE_PARAM_LENGTH) 2040 2041 /* 2042 * These command codes need to be moved to sys/scsi/generic/commands.h 2043 */ 2044 2045 /* Both versions of the Read CD command */ 2046 2047 /* the official SCMD_READ_CD now comes from cdio.h */ 2048 #define SCMD_READ_CDD4 0xd4 /* the one used by some first */ 2049 /* generation ATAPI CD drives */ 2050 2051 /* expected sector type filter values for Play and Read CD CDBs */ 2052 #define CDROM_SECTOR_TYPE_CDDA (1<<2) /* IEC 908:1987 (CDDA) */ 2053 #define CDROM_SECTOR_TYPE_MODE1 (2<<2) /* Yellow book 2048 bytes */ 2054 #define CDROM_SECTOR_TYPE_MODE2 (3<<2) /* Yellow book 2335 bytes */ 2055 #define CDROM_SECTOR_TYPE_MODE2_FORM1 (4<<2) /* 2048 bytes */ 2056 #define CDROM_SECTOR_TYPE_MODE2_FORM2 (5<<2) /* 2324 bytes */ 2057 2058 /* READ CD filter bits (cdb[9]) */ 2059 #define CDROM_READ_CD_SYNC 0x80 /* read sync field */ 2060 #define CDROM_READ_CD_HDR 0x20 /* read four byte header */ 2061 #define CDROM_READ_CD_SUBHDR 0x40 /* read sub-header */ 2062 #define CDROM_READ_CD_ALLHDRS 0x60 /* read header and sub-header */ 2063 #define CDROM_READ_CD_USERDATA 0x10 /* read user data */ 2064 #define CDROM_READ_CD_EDC_ECC 0x08 /* read EDC and ECC field */ 2065 #define CDROM_READ_CD_C2 0x02 /* read C2 error data */ 2066 #define CDROM_READ_CD_C2_BEB 0x04 /* read C2 and Block Error Bits */ 2067 2068 2069 /* 2070 * These belong in sys/scsi/generic/mode.h 2071 */ 2072 2073 /* 2074 * Mode Sense/Select Header response for Group 2 CDB. 2075 */ 2076 2077 struct mode_header_grp2 { 2078 uchar_t length_msb; /* MSB - number of bytes following */ 2079 uchar_t length_lsb; 2080 uchar_t medium_type; /* device specific */ 2081 uchar_t device_specific; /* device specfic parameters */ 2082 uchar_t resv[2]; /* reserved */ 2083 uchar_t bdesc_length_hi; /* length of block descriptor(s) */ 2084 /* (if any) */ 2085 uchar_t bdesc_length_lo; 2086 }; 2087 2088 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", mode_header_grp2)) 2089 2090 /* 2091 * Length of the Mode Parameter Header for the Group 2 Mode Select command 2092 */ 2093 #define MODE_HEADER_LENGTH_GRP2 (sizeof (struct mode_header_grp2)) 2094 #define MODE_PARAM_LENGTH_GRP2 (MODE_HEADER_LENGTH_GRP2 + MODE_BLK_DESC_LENGTH) 2095 2096 /* 2097 * Mode Page 1 - Error Recovery Page 2098 */ 2099 #define MODEPAGE_ERR_RECOVER 1 2100 2101 /* 2102 * The following buffer length define is 8 bytes for the Group 2 mode page 2103 * header, 8 bytes for the block descriptor and 26 bytes for the cdrom 2104 * capabilities page (per MMC-2) 2105 */ 2106 #define MODEPAGE_CDROM_CAP 0x2A 2107 #define MODEPAGE_CDROM_CAP_LEN 26 2108 #define BUFLEN_MODE_CDROM_CAP (MODEPAGE_CDROM_CAP_LEN + \ 2109 MODE_HEADER_LENGTH_GRP2 + MODE_BLK_DESC_LENGTH) 2110 2111 2112 /* 2113 * Power management defines 2114 */ 2115 #define SD_SPINDLE_UNINIT (-1) 2116 #define SD_SPINDLE_OFF 0 2117 #define SD_SPINDLE_ON 1 2118 #define SD_PM_NOT_SUPPORTED 2 2119 2120 2121 /* 2122 * No Need to resume if already in PM_SUSPEND state because the thread 2123 * was suspended in sdpower. It will be resumed when sdpower is invoked to make 2124 * the device active. 2125 * When the thread is suspended, the watch thread is terminated and 2126 * the token is NULLed so check for this condition. 2127 * If there's a thread that can be resumed, ie. token is not NULL, then 2128 * it can be resumed. 2129 */ 2130 #define SD_OK_TO_RESUME_SCSI_WATCHER(un) (un->un_swr_token != NULL) 2131 /* 2132 * No Need to resume if already in PM_SUSPEND state because the thread 2133 * was suspended in sdpower. It will be resumed when sdpower is invoked to make 2134 * the device active. 2135 * When the thread is suspended, the watch thread is terminated and 2136 * the token is NULLed so check for this condition. 2137 */ 2138 #define SD_OK_TO_SUSPEND_SCSI_WATCHER(un) (un->un_swr_token != NULL) 2139 #define SD_DEVICE_IS_IN_LOW_POWER(un) ((un->un_f_pm_is_enabled) && \ 2140 (un->un_pm_count < 0)) 2141 /* 2142 * Could move this define to some thing like log sense.h in SCSA headers 2143 * But for now let it live here. 2144 */ 2145 #define START_STOP_CYCLE_COUNTER_PAGE_SIZE 0x28 2146 #define START_STOP_CYCLE_PAGE 0x0E 2147 #define START_STOP_CYCLE_VU_PAGE 0x31 2148 2149 /* CD-ROM Error Recovery Parameters page (0x01) */ 2150 #define MODEPAGE_ERR_RECOV 0x1 2151 #define BUFLEN_CHG_BLK_MODE MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH 2152 2153 /* 2154 * Vendor Specific (Toshiba) CD-ROM Speed page (0x31) 2155 * 2156 * The following buffer length define is 4 bytes for the Group 0 mode page 2157 * header, 8 bytes for the block descriptor and 4 bytes for the mode speed page. 2158 */ 2159 #define MODEPAGE_CDROM_SPEED_LEN 4 2160 #define BUFLEN_MODE_CDROM_SPEED MODEPAGE_CDROM_SPEED_LEN +\ 2161 MODE_HEADER_LENGTH +\ 2162 MODE_BLK_DESC_LENGTH 2163 #define SD_SPEED_1X 176 2164 2165 /* CD-ROM Audio Control Parameters page (0x0E) */ 2166 #define MODEPAGE_AUDIO_CTRL 0x0E 2167 #define MODEPAGE_AUDIO_CTRL_LEN 16 2168 2169 /* CD-ROM Sony Read Offset Defines */ 2170 #define SONY_SESSION_OFFSET_LEN 12 2171 #define SONY_SESSION_OFFSET_KEY 0x40 2172 #define SONY_SESSION_OFFSET_VALID 0x0a 2173 2174 /* 2175 * CD-ROM Write Protect Defines 2176 * 2177 * Bit 7 of the device specific field of the mode page header is the write 2178 * protect bit. 2179 */ 2180 #define WRITE_PROTECT 0x80 2181 2182 /* 2183 * Define for the length of a profile header returned in response to the 2184 * GET CONFIGURATION command 2185 */ 2186 #define SD_PROFILE_HEADER_LEN 8 /* bytes */ 2187 2188 /* 2189 * Define the length of the data in response to the GET CONFIGURATION 2190 * command. The 3rd byte of the feature descriptor contains the 2191 * current feature field that is of interest. This field begins 2192 * after the feature header which is 8 bytes. This variable length 2193 * was increased in size from 11 to 24 because some devices became 2194 * unresponsive with the smaller size. 2195 */ 2196 #define SD_CURRENT_FEATURE_LEN 24 /* bytes */ 2197 2198 /* 2199 * Feature codes associated with GET CONFIGURATION command for supported 2200 * devices. 2201 */ 2202 #define RANDOM_WRITABLE 0x20 2203 #define HARDWARE_DEFECT_MANAGEMENT 0x24 2204 2205 /* 2206 * Could move this define to some thing like log sense.h in SCSA headers 2207 * But for now let it live here. 2208 */ 2209 #define TEMPERATURE_PAGE 0x0D 2210 #define TEMPERATURE_PAGE_SIZE 16 /* bytes */ 2211 2212 /* delay time used for sd_media_watch_cb delayed cv broadcast */ 2213 #define MEDIA_ACCESS_DELAY 2000000 2214 2215 2216 /* SCSI power on or bus device reset additional sense code */ 2217 #define SD_SCSI_RESET_SENSE_CODE 0x29 2218 2219 /* 2220 * These defines are for the Vital Product Data Pages in the inquiry command. 2221 * They are the bits in the un_vpd_page mask, telling the supported pages. 2222 */ 2223 #define SD_VPD_SUPPORTED_PG 0x01 /* 0x00 - Supported VPD pages */ 2224 #define SD_VPD_UNIT_SERIAL_PG 0x02 /* 0x80 - Unit Serial Number */ 2225 #define SD_VPD_OPERATING_PG 0x04 /* 0x81 - Implemented Op Defs */ 2226 #define SD_VPD_ASCII_OP_PG 0x08 /* 0x82 - ASCII Op Defs */ 2227 #define SD_VPD_DEVID_WWN_PG 0x10 /* 0x83 - Device Identification */ 2228 #define SD_VPD_EXTENDED_DATA_PG 0x80 /* 0x86 - Extended data about the lun */ 2229 2230 /* 2231 * Non-volatile cache support 2232 * 2233 * Bit 1 of the byte 6 in the Extended INQUIRY data VPD page 2234 * is NV_SUP bit: An NV_SUP bit set to one indicates that 2235 * the device server supports a non-volatile cache. An 2236 * NV_SUP bit set to zero indicates that the device 2237 * server may or may not support a non-volatile cache. 2238 * 2239 * Bit 2 of the byte 1 in the SYNC CACHE command is SYNC_NV 2240 * bit: The SYNC_NV bit specifies whether the device server 2241 * is required to synchronize volatile and non-volatile 2242 * caches. 2243 */ 2244 #define SD_VPD_NV_SUP 0x02 2245 #define SD_SYNC_NV_BIT 0x04 2246 2247 /* 2248 * Addition from sddef.intel.h 2249 */ 2250 #if defined(__i386) || defined(__amd64) 2251 2252 #define P0_RAW_DISK (NDKMAP) 2253 #define FDISK_P1 (NDKMAP+1) 2254 #define FDISK_P2 (NDKMAP+2) 2255 #define FDISK_P3 (NDKMAP+3) 2256 #define FDISK_P4 (NDKMAP+4) 2257 2258 #endif /* __i386 || __amd64 */ 2259 2260 #ifdef __cplusplus 2261 } 2262 #endif 2263 2264 2265 #endif /* _SYS_SCSI_TARGETS_SDDEF_H */ 2266