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