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 /* 97 * XXX - NSDMAP has multiple definitions, one more in cmlb_impl.h 98 * If they are coalesced into one, this definition will follow suit. 99 * FDISK partitions - 4 primary and MAX_EXT_PARTS number of Extended 100 * Partitions. 101 */ 102 #define FDISK_PARTS (FD_NUMPART + MAX_EXT_PARTS) 103 104 #define SDUNIT_SHIFT 6 105 #define SDPART_MASK 63 106 #define NSDMAP (NDKMAP + FDISK_PARTS + 1) 107 108 #else 109 #error "No VTOC format defined." 110 #endif 111 112 113 #define SDUNIT(dev) (getminor((dev)) >> SDUNIT_SHIFT) 114 #define SDPART(dev) (getminor((dev)) & SDPART_MASK) 115 116 /* 117 * maximum number of partitions the driver keeps track of; with 118 * EFI this can be larger than the number of partitions accessible 119 * through the minor nodes. It won't be used for keeping track 120 * of open counts, partition kstats, etc. 121 */ 122 #define MAXPART (NSDMAP + 1) 123 124 /* 125 * Macro to retrieve the DDI instance number from the given buf struct. 126 * The instance number is encoded in the minor device number. 127 */ 128 #define SD_GET_INSTANCE_FROM_BUF(bp) \ 129 (getminor((bp)->b_edev) >> SDUNIT_SHIFT) 130 131 132 133 struct ocinfo { 134 /* 135 * Types BLK, MNT, CHR, SWP, 136 * assumed to be types 0-3. 137 */ 138 uint64_t lyr_open[NSDMAP]; 139 uint64_t reg_open[OTYPCNT - 1]; 140 }; 141 142 #define OCSIZE sizeof (struct ocinfo) 143 144 union ocmap { 145 uchar_t chkd[OCSIZE]; 146 struct ocinfo rinfo; 147 }; 148 149 #define lyropen rinfo.lyr_open 150 #define regopen rinfo.reg_open 151 152 153 #define SD_CDB_GROUP0 0 154 #define SD_CDB_GROUP1 1 155 #define SD_CDB_GROUP5 2 156 #define SD_CDB_GROUP4 3 157 158 struct sd_cdbinfo { 159 uchar_t sc_grpcode; /* CDB group code */ 160 uchar_t sc_grpmask; /* CDB group code mask (for cmd opcode) */ 161 uint64_t sc_maxlba; /* Maximum logical block addr. supported */ 162 uint32_t sc_maxlen; /* Maximum transfer length supported */ 163 }; 164 165 166 167 /* 168 * The following declaration are for Non-512 byte block support for the 169 * removable devices. (ex - DVD RAM, MO). 170 * wm_state: This is an enumeration for the different states for 171 * manipalating write range list during the read-modify-write-operation. 172 */ 173 typedef enum { 174 SD_WM_CHK_LIST, /* Check list for overlapping writes */ 175 SD_WM_WAIT_MAP, /* Wait for an overlapping I/O to complete */ 176 SD_WM_LOCK_RANGE, /* Lock the range of lba to be written */ 177 SD_WM_DONE /* I/O complete */ 178 } wm_state; 179 180 /* 181 * sd_w_map: Every write I/O will get one w_map allocated for it which will tell 182 * the range on the media which is being written for that request. 183 */ 184 struct sd_w_map { 185 uint_t wm_start; /* Write start location */ 186 uint_t wm_end; /* Write end location */ 187 ushort_t wm_flags; /* State of the wmap */ 188 ushort_t wm_wanted_count; /* # of threads waiting for region */ 189 void *wm_private; /* Used to store bp->b_private */ 190 struct buf *wm_bufp; /* to store buf pointer */ 191 struct sd_w_map *wm_next; /* Forward pointed to sd_w_map */ 192 struct sd_w_map *wm_prev; /* Back pointer to sd_w_map */ 193 kcondvar_t wm_avail; /* Sleep on this, while not available */ 194 }; 195 196 _NOTE(MUTEX_PROTECTS_DATA(scsi_device::sd_mutex, sd_w_map::wm_flags)) 197 198 199 /* 200 * This is the struct for the layer-private data area for the 201 * mapblocksize layer. 202 */ 203 204 struct sd_mapblocksize_info { 205 void *mbs_oprivate; /* saved value of xb_private */ 206 struct buf *mbs_orig_bp; /* ptr to original bp */ 207 struct sd_w_map *mbs_wmp; /* ptr to write-map struct for RMW */ 208 ssize_t mbs_copy_offset; 209 int mbs_layer_index; /* chain index for RMW */ 210 }; 211 212 _NOTE(SCHEME_PROTECTS_DATA("unshared data", sd_mapblocksize_info)) 213 214 215 /* 216 * sd_lun: The main data structure for a scsi logical unit. 217 * Stored as the softstate structure for each device. 218 */ 219 220 struct sd_lun { 221 222 /* Back ptr to the SCSA scsi_device struct for this LUN */ 223 struct scsi_device *un_sd; 224 225 /* 226 * Support for Auto-Request sense capability 227 */ 228 struct buf *un_rqs_bp; /* ptr to request sense bp */ 229 struct scsi_pkt *un_rqs_pktp; /* ptr to request sense scsi_pkt */ 230 int un_sense_isbusy; /* Busy flag for RQS buf */ 231 232 /* 233 * These specify the layering chains to use with this instance. These 234 * are initialized according to the values in the sd_chain_index_map[] 235 * array. See the description of sd_chain_index_map[] for details. 236 */ 237 int un_buf_chain_type; 238 int un_uscsi_chain_type; 239 int un_direct_chain_type; 240 int un_priority_chain_type; 241 242 /* Head & tail ptrs to the queue of bufs awaiting transport */ 243 struct buf *un_waitq_headp; 244 struct buf *un_waitq_tailp; 245 246 /* Ptr to the buf currently being retried (NULL if none) */ 247 struct buf *un_retry_bp; 248 249 /* This tracks the last kstat update for the un_retry_bp buf */ 250 void (*un_retry_statp)(kstat_io_t *); 251 252 void *un_xbuf_attr; /* xbuf attribute struct */ 253 254 255 /* System logical block size, in bytes. (defaults to DEV_BSIZE.) */ 256 uint32_t un_sys_blocksize; 257 258 /* The size of a logical block on the target, in bytes. */ 259 uint32_t un_tgt_blocksize; 260 261 /* 262 * The number of logical blocks on the target. This is adjusted 263 * to be in terms of the block size specified by un_sys_blocksize 264 * (ie, the system block size). 265 */ 266 uint64_t un_blockcount; 267 268 /* 269 * Various configuration data 270 */ 271 uchar_t un_ctype; /* Controller type */ 272 char *un_node_type; /* minor node type */ 273 uchar_t un_interconnect_type; /* Interconnect for underlying HBA */ 274 275 uint_t un_notready_retry_count; /* Per disk notready retry count */ 276 uint_t un_busy_retry_count; /* Per disk BUSY retry count */ 277 278 uint_t un_retry_count; /* Per disk retry count */ 279 uint_t un_victim_retry_count; /* Per disk victim retry count */ 280 281 /* (4356701, 4367306) */ 282 uint_t un_reset_retry_count; /* max io retries before issuing reset */ 283 ushort_t un_reserve_release_time; /* reservation release timeout */ 284 285 uchar_t un_reservation_type; /* SCSI-3 or SCSI-2 */ 286 uint_t un_max_xfer_size; /* Maximum DMA transfer size */ 287 int un_partial_dma_supported; 288 int un_buf_breakup_supported; 289 290 int un_mincdb; /* Smallest CDB to use */ 291 int un_maxcdb; /* Largest CDB to use */ 292 int un_max_hba_cdb; /* Largest CDB supported by HBA */ 293 int un_status_len; 294 int un_pkt_flags; 295 296 /* 297 * Note: un_uscsi_timeout is a "mirror" of un_cmd_timeout, adjusted 298 * for ISCD(). Any updates to un_cmd_timeout MUST be reflected 299 * in un_uscsi_timeout as well! 300 */ 301 ushort_t un_cmd_timeout; /* Timeout for completion */ 302 ushort_t un_uscsi_timeout; /* Timeout for USCSI completion */ 303 ushort_t un_busy_timeout; /* Timeout for busy retry */ 304 305 /* 306 * Info on current states, statuses, etc. (Updated frequently) 307 */ 308 uchar_t un_state; /* current state */ 309 uchar_t un_last_state; /* last state */ 310 uchar_t un_last_pkt_reason; /* used to suppress multiple msgs */ 311 int un_tagflags; /* Pkt Flags for Tagged Queueing */ 312 short un_resvd_status; /* Reservation Status */ 313 ulong_t un_detach_count; /* !0 if executing detach routine */ 314 ulong_t un_layer_count; /* Current total # of layered opens */ 315 ulong_t un_opens_in_progress; /* Current # of threads in sdopen */ 316 317 ksema_t un_semoclose; /* serialize opens/closes */ 318 319 /* 320 * Control & status info for command throttling 321 */ 322 long un_ncmds_in_driver; /* number of cmds in driver */ 323 short un_ncmds_in_transport; /* number of cmds in transport */ 324 short un_throttle; /* max #cmds allowed in transport */ 325 short un_saved_throttle; /* saved value of un_throttle */ 326 short un_busy_throttle; /* saved un_throttle for BUSY */ 327 short un_min_throttle; /* min value of un_throttle */ 328 timeout_id_t un_reset_throttle_timeid; /* timeout(9F) handle */ 329 330 /* 331 * Multi-host (clustering) support 332 */ 333 opaque_t un_mhd_token; /* scsi watch request */ 334 timeout_id_t un_resvd_timeid; /* for resvd recover */ 335 336 /* Event callback resources (photon) */ 337 ddi_eventcookie_t un_insert_event; /* insert event */ 338 ddi_callback_id_t un_insert_cb_id; /* insert callback */ 339 ddi_eventcookie_t un_remove_event; /* remove event */ 340 ddi_callback_id_t un_remove_cb_id; /* remove callback */ 341 342 uint_t un_start_stop_cycle_page; /* Saves start/stop */ 343 /* cycle page */ 344 timeout_id_t un_dcvb_timeid; /* dlyd cv broadcast */ 345 346 /* 347 * Data structures for open counts, partition info, VTOC, 348 * stats, and other such bookkeeping info. 349 */ 350 union ocmap un_ocmap; /* open partition map */ 351 struct kstat *un_pstats[NSDMAP]; /* partition statistics */ 352 struct kstat *un_stats; /* disk statistics */ 353 kstat_t *un_errstats; /* for error statistics */ 354 uint64_t un_exclopen; /* exclusive open bitmask */ 355 ddi_devid_t un_devid; /* device id */ 356 uint_t un_vpd_page_mask; /* Supported VPD pages */ 357 358 /* 359 * Bit fields for various configuration/state/status info. 360 * Comments indicate the condition if the value of the 361 * variable is TRUE (nonzero). 362 */ 363 uint32_t 364 un_f_arq_enabled :1, /* Auto request sense is */ 365 /* currently enabled */ 366 un_f_blockcount_is_valid :1, /* The un_blockcount */ 367 /* value is currently valid */ 368 un_f_tgt_blocksize_is_valid :1, /* The un_tgt_blocksize */ 369 /* value is currently valid */ 370 un_f_allow_bus_device_reset :1, /* Driver may issue a BDR as */ 371 /* a part of error recovery. */ 372 un_f_is_fibre :1, /* The device supports fibre */ 373 /* channel */ 374 un_f_sync_cache_supported :1, /* sync cache cmd supported */ 375 /* supported */ 376 un_f_format_in_progress :1, /* The device is currently */ 377 /* executing a FORMAT cmd. */ 378 un_f_opt_queueing :1, /* Enable Command Queuing to */ 379 /* Host Adapter */ 380 un_f_opt_fab_devid :1, /* Disk has no valid/unique */ 381 /* serial number. */ 382 un_f_opt_disable_cache :1, /* Read/Write disk cache is */ 383 /* disabled. */ 384 un_f_cfg_is_atapi :1, /* This is an ATAPI device. */ 385 un_f_write_cache_enabled :1, /* device return success on */ 386 /* writes before transfer to */ 387 /* physical media complete */ 388 un_f_cfg_playmsf_bcd :1, /* Play Audio, BCD params. */ 389 un_f_cfg_readsub_bcd :1, /* READ SUBCHANNEL BCD resp. */ 390 un_f_cfg_read_toc_trk_bcd :1, /* track # is BCD */ 391 un_f_cfg_read_toc_addr_bcd :1, /* address is BCD */ 392 un_f_cfg_no_read_header :1, /* READ HEADER not supported */ 393 un_f_cfg_read_cd_xd4 :1, /* READ CD opcode is 0xd4 */ 394 un_f_mmc_cap :1, /* Device is MMC compliant */ 395 un_f_mmc_writable_media :1, /* writable media in device */ 396 un_f_dvdram_writable_device :1, /* DVDRAM device is writable */ 397 un_f_cfg_cdda :1, /* READ CDDA supported */ 398 un_f_cfg_tur_check :1, /* verify un_ncmds before tur */ 399 400 un_f_use_adaptive_throttle :1, /* enable/disable adaptive */ 401 /* throttling */ 402 un_f_pm_is_enabled :1, /* PM is enabled on this */ 403 /* instance */ 404 un_f_watcht_stopped :1, /* media watch thread flag */ 405 un_f_pkstats_enabled :1, /* Flag to determine if */ 406 /* partition kstats are */ 407 /* enabled. */ 408 un_f_disksort_disabled :1, /* Flag to disable disksort */ 409 un_f_lun_reset_enabled :1, /* Set if target supports */ 410 /* SCSI Logical Unit Reset */ 411 un_f_doorlock_supported :1, /* Device supports Doorlock */ 412 un_f_start_stop_supported :1, /* device has motor */ 413 un_f_reserved1 :1; 414 415 uint32_t 416 un_f_mboot_supported :1, /* mboot supported */ 417 un_f_is_hotpluggable :1, /* hotpluggable */ 418 un_f_has_removable_media :1, /* has removable media */ 419 un_f_non_devbsize_supported :1, /* non-512 blocksize */ 420 un_f_devid_supported :1, /* device ID supported */ 421 un_f_eject_media_supported :1, /* media can be ejected */ 422 un_f_chk_wp_open :1, /* check if write-protected */ 423 /* when being opened */ 424 un_f_descr_format_supported :1, /* support descriptor format */ 425 /* for sense data */ 426 un_f_check_start_stop :1, /* needs to check if */ 427 /* START-STOP command is */ 428 /* supported by hardware */ 429 /* before issuing it */ 430 un_f_monitor_media_state :1, /* need a watch thread to */ 431 /* monitor device state */ 432 un_f_attach_spinup :1, /* spin up once the */ 433 /* device is attached */ 434 un_f_log_sense_supported :1, /* support log sense */ 435 un_f_pm_supported :1, /* support power-management */ 436 un_f_cfg_is_lsi :1, /* Is LSI device, */ 437 /* default to NO */ 438 un_f_wcc_inprog :1, /* write cache change in */ 439 /* progress */ 440 un_f_ejecting :1, /* media is ejecting */ 441 un_f_suppress_cache_flush :1, /* supress flush on */ 442 /* write cache */ 443 un_f_sync_nv_supported :1, /* SYNC_NV */ 444 /* bit is supported */ 445 un_f_sync_cache_required :1, /* flag to check if */ 446 /* SYNC CACHE needs to be */ 447 /* sent in sdclose */ 448 un_f_devid_transport_defined :1, /* devid defined by transport */ 449 un_f_rmw_type :2, /* RMW type */ 450 un_f_reserved :10; 451 452 /* Ptr to table of strings for ASC/ASCQ error message printing */ 453 struct scsi_asq_key_strings *un_additional_codes; 454 455 /* 456 * Power Management support. 457 * 458 * un_pm_mutex protects, un_pm_count, un_pm_timeid, un_pm_busy, 459 * un_pm_busy_cv, and un_pm_idle_timeid. 460 * It's not required that SD_MUTEX be acquired before acquiring 461 * un_pm_mutex, however if they must both be held 462 * then acquire SD_MUTEX first. 463 * 464 * un_pm_count is used to indicate PM state as follows: 465 * less than 0 the device is powered down, 466 * transition from 0 ==> 1, mark the device as busy via DDI 467 * transition from 1 ==> 0, mark the device as idle via DDI 468 */ 469 kmutex_t un_pm_mutex; 470 int un_pm_count; /* indicates pm state */ 471 timeout_id_t un_pm_timeid; /* timeout id for pm */ 472 uint_t un_pm_busy; 473 kcondvar_t un_pm_busy_cv; 474 short un_power_level; /* Power Level */ 475 uchar_t un_save_state; 476 kcondvar_t un_suspend_cv; /* power management */ 477 kcondvar_t un_disk_busy_cv; /* wait for IO completion */ 478 479 /* Resources used for media change callback support */ 480 kcondvar_t un_state_cv; /* Cond Var on mediastate */ 481 enum dkio_state un_mediastate; /* current media state */ 482 enum dkio_state un_specified_mediastate; /* expected state */ 483 opaque_t un_swr_token; /* scsi_watch request token */ 484 485 /* Non-512 byte block support */ 486 struct kmem_cache *un_wm_cache; /* fast alloc in non-512 write case */ 487 uint_t un_rmw_count; /* count of read-modify-writes */ 488 struct sd_w_map *un_wm; /* head of sd_w_map chain */ 489 uint64_t un_rmw_incre_count; /* count I/O */ 490 timeout_id_t un_rmw_msg_timeid; /* for RMW message control */ 491 492 /* For timeout callback to issue a START STOP UNIT command */ 493 timeout_id_t un_startstop_timeid; 494 495 /* Timeout callback handle for SD_PATH_DIRECT_PRIORITY cmd restarts */ 496 timeout_id_t un_direct_priority_timeid; 497 498 /* TRAN_FATAL_ERROR count. Cleared by TRAN_ACCEPT from scsi_transport */ 499 ulong_t un_tran_fatal_count; 500 501 timeout_id_t un_retry_timeid; 502 503 time_t un_pm_idle_time; 504 timeout_id_t un_pm_idle_timeid; 505 506 /* 507 * Count to determine if a Sonoma controller is in the process of 508 * failing over, and how many I/O's are failed with the 05/94/01 509 * sense code. 510 */ 511 uint_t un_sonoma_failure_count; 512 513 /* 514 * Support for failfast operation. 515 */ 516 struct buf *un_failfast_bp; 517 struct buf *un_failfast_headp; 518 struct buf *un_failfast_tailp; 519 uint32_t un_failfast_state; 520 /* Callback routine active counter */ 521 short un_in_callback; 522 523 kcondvar_t un_wcc_cv; /* synchronize changes to */ 524 /* un_f_write_cache_enabled */ 525 526 #ifdef SD_FAULT_INJECTION 527 /* SD Fault Injection */ 528 #define SD_FI_MAX_BUF 65536 529 #define SD_FI_MAX_ERROR 1024 530 kmutex_t un_fi_mutex; 531 uint_t sd_fi_buf_len; 532 char sd_fi_log[SD_FI_MAX_BUF]; 533 struct sd_fi_pkt *sd_fi_fifo_pkt[SD_FI_MAX_ERROR]; 534 struct sd_fi_xb *sd_fi_fifo_xb[SD_FI_MAX_ERROR]; 535 struct sd_fi_un *sd_fi_fifo_un[SD_FI_MAX_ERROR]; 536 struct sd_fi_arq *sd_fi_fifo_arq[SD_FI_MAX_ERROR]; 537 uint_t sd_fi_fifo_start; 538 uint_t sd_fi_fifo_end; 539 uint_t sd_injection_mask; 540 541 #endif 542 543 cmlb_handle_t un_cmlbhandle; 544 545 /* 546 * Pointer to internal struct sd_fm_internal in which 547 * will pass necessary information for FMA ereport posting. 548 */ 549 void *un_fm_private; 550 }; 551 552 #define SD_IS_VALID_LABEL(un) (cmlb_is_valid(un->un_cmlbhandle)) 553 554 /* 555 * Macros for conversions between "target" and "system" block sizes, and 556 * for conversion between block counts and byte counts. As used here, 557 * "system" block size refers to the block size used by the kernel/ 558 * filesystem (this includes the disk label). The "target" block size 559 * is the block size returned by the SCSI READ CAPACITY command. 560 * 561 * Note: These macros will round up to the next largest blocksize to accomodate 562 * the number of blocks specified. 563 */ 564 565 /* Convert a byte count to a number of target blocks */ 566 #define SD_BYTES2TGTBLOCKS(un, bytecount) \ 567 ((bytecount + (un->un_tgt_blocksize - 1))/un->un_tgt_blocksize) 568 569 /* Convert a target block count to a number of bytes */ 570 #define SD_TGTBLOCKS2BYTES(un, blockcount) \ 571 (blockcount * (un)->un_tgt_blocksize) 572 573 /* Convert a byte count to a number of system blocks */ 574 #define SD_BYTES2SYSBLOCKS(bytecount) \ 575 ((bytecount + (DEV_BSIZE - 1))/DEV_BSIZE) 576 577 /* Convert a system block count to a number of bytes */ 578 #define SD_SYSBLOCKS2BYTES(blockcount) \ 579 (blockcount * DEV_BSIZE) 580 581 /* 582 * Calculate the number of bytes needed to hold the requested number of bytes 583 * based upon the native target sector/block size 584 */ 585 #define SD_REQBYTES2TGTBYTES(un, bytecount) \ 586 (SD_BYTES2TGTBLOCKS(un, bytecount) * (un)->un_tgt_blocksize) 587 588 /* 589 * Calculate the byte offset from the beginning of the target block 590 * to the system block location. 591 */ 592 #define SD_TGTBYTEOFFSET(un, sysblk, tgtblk) \ 593 (SD_SYSBLOCKS2BYTES(sysblk) - SD_TGTBLOCKS2BYTES(un, tgtblk)) 594 595 /* 596 * Calculate the target block location from the system block location 597 */ 598 #define SD_SYS2TGTBLOCK(un, blockcnt) \ 599 (blockcnt / ((un)->un_tgt_blocksize / DEV_BSIZE)) 600 601 /* 602 * Calculate the target block location from the system block location 603 */ 604 #define SD_TGT2SYSBLOCK(un, blockcnt) \ 605 (blockcnt * ((un)->un_tgt_blocksize / DEV_BSIZE)) 606 607 /* 608 * SD_DEFAULT_MAX_XFER_SIZE is the default value to bound the max xfer 609 * for physio, for devices without tagged queuing enabled. 610 * The default for devices with tagged queuing enabled is SD_MAX_XFER_SIZE 611 */ 612 #if defined(__i386) || defined(__amd64) 613 #define SD_DEFAULT_MAX_XFER_SIZE (256 * 1024) 614 #endif 615 #define SD_MAX_XFER_SIZE (1024 * 1024) 616 617 /* 618 * Warlock annotations 619 */ 620 _NOTE(MUTEX_PROTECTS_DATA(scsi_device::sd_mutex, sd_lun)) 621 _NOTE(READ_ONLY_DATA(sd_lun::un_sd)) 622 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_reservation_type)) 623 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_mincdb)) 624 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_maxcdb)) 625 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_max_hba_cdb)) 626 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_status_len)) 627 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_f_arq_enabled)) 628 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_ctype)) 629 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_cmlbhandle)) 630 _NOTE(DATA_READABLE_WITHOUT_LOCK(sd_lun::un_fm_private)) 631 632 633 _NOTE(SCHEME_PROTECTS_DATA("safe sharing", 634 sd_lun::un_mhd_token 635 sd_lun::un_state 636 sd_lun::un_tagflags 637 sd_lun::un_f_format_in_progress 638 sd_lun::un_resvd_timeid 639 sd_lun::un_reset_throttle_timeid 640 sd_lun::un_startstop_timeid 641 sd_lun::un_dcvb_timeid 642 sd_lun::un_f_allow_bus_device_reset 643 sd_lun::un_sys_blocksize 644 sd_lun::un_tgt_blocksize 645 sd_lun::un_additional_codes)) 646 647 _NOTE(SCHEME_PROTECTS_DATA("stable data", 648 sd_lun::un_reserve_release_time 649 sd_lun::un_max_xfer_size 650 sd_lun::un_partial_dma_supported 651 sd_lun::un_buf_breakup_supported 652 sd_lun::un_f_is_fibre 653 sd_lun::un_node_type 654 sd_lun::un_buf_chain_type 655 sd_lun::un_uscsi_chain_type 656 sd_lun::un_direct_chain_type 657 sd_lun::un_priority_chain_type 658 sd_lun::un_xbuf_attr 659 sd_lun::un_cmd_timeout 660 sd_lun::un_pkt_flags)) 661 662 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", 663 block_descriptor 664 buf 665 cdrom_subchnl 666 cdrom_tocentry 667 cdrom_tochdr 668 cdrom_read 669 dk_cinfo 670 dk_devid 671 dk_label 672 dk_map 673 dk_temperature 674 mhioc_inkeys 675 mhioc_inresvs 676 mode_caching 677 mode_header 678 mode_speed 679 scsi_cdb 680 scsi_arq_status 681 scsi_extended_sense 682 scsi_inquiry 683 scsi_pkt 684 uio 685 uscsi_cmd)) 686 687 688 _NOTE(SCHEME_PROTECTS_DATA("stable data", scsi_device dk_cinfo)) 689 _NOTE(SCHEME_PROTECTS_DATA("unique per pkt", scsi_status scsi_cdb)) 690 691 _NOTE(MUTEX_PROTECTS_DATA(sd_lun::un_pm_mutex, sd_lun::un_pm_count 692 sd_lun::un_pm_timeid sd_lun::un_pm_busy sd_lun::un_pm_busy_cv 693 sd_lun::un_pm_idle_timeid)) 694 695 #ifdef SD_FAULT_INJECTION 696 _NOTE(MUTEX_PROTECTS_DATA(sd_lun::un_fi_mutex, 697 sd_lun::sd_fi_buf_len sd_lun::sd_fi_log)) 698 #endif 699 700 /* _NOTE(LOCK_ORDER(sd_lun::un_sd.sd_mutex sd_lun::un_pm_mutex)) */ 701 702 703 704 /* 705 * Referenced for frequently-accessed members of the unit structure 706 */ 707 #define SD_SCSI_DEVP(un) ((un)->un_sd) 708 #define SD_DEVINFO(un) ((un)->un_sd->sd_dev) 709 #define SD_INQUIRY(un) ((un)->un_sd->sd_inq) 710 #define SD_MUTEX(un) (&((un)->un_sd->sd_mutex)) 711 #define SD_ADDRESS(un) (&((un)->un_sd->sd_address)) 712 #define SD_GET_DEV(un) (sd_make_device(SD_DEVINFO(un))) 713 #define SD_FM_LOG(un) (((struct sd_fm_internal *)\ 714 ((un)->un_fm_private))->fm_log_level) 715 716 717 /* 718 * Values for un_ctype 719 */ 720 #define CTYPE_CDROM 0 721 #define CTYPE_MD21 1 /* Obsolete! */ 722 #define CTYPE_CCS 2 723 #define CTYPE_ROD 3 724 #define CTYPE_PXRE 4 /* Obsolete! */ 725 726 #define ISCD(un) ((un)->un_ctype == CTYPE_CDROM) 727 #define ISROD(un) ((un)->un_ctype == CTYPE_ROD) 728 #define ISPXRE(un) ((un)->un_ctype == CTYPE_PXRE) 729 730 /* 731 * This macro checks the vendor of the device to see if it is LSI. Because 732 * LSI has some devices out there that return 'Symbios' or 'SYMBIOS', we 733 * need to check for those also. 734 * 735 * This is used in some vendor specific checks. 736 */ 737 #define SD_IS_LSI(un) ((un)->un_f_cfg_is_lsi == TRUE) 738 739 /* 740 * Macros to check if the lun is a Sun T3 or a T4 741 */ 742 #define SD_IS_T3(un) \ 743 ((bcmp(SD_INQUIRY(un)->inq_vid, "SUN", 3) == 0) && \ 744 (bcmp(SD_INQUIRY(un)->inq_pid, "T3", 2) == 0)) 745 746 #define SD_IS_T4(un) \ 747 ((bcmp(SD_INQUIRY(un)->inq_vid, "SUN", 3) == 0) && \ 748 (bcmp(SD_INQUIRY(un)->inq_pid, "T4", 2) == 0)) 749 750 /* 751 * Macros for non-512 byte writes to removable devices. 752 */ 753 #define NOT_DEVBSIZE(un) \ 754 ((un)->un_tgt_blocksize != (un)->un_sys_blocksize) 755 756 /* 757 * Check that a write map, used for locking lba ranges for writes, is in 758 * the linked list. 759 */ 760 #define ONLIST(un, wmp) \ 761 (((un)->un_wm == (wmp)) || ((wmp)->wm_prev != NULL)) 762 763 /* 764 * Free a write map which is on list. Basically make sure that nobody is 765 * sleeping on it before freeing it. 766 */ 767 #define FREE_ONLIST_WMAP(un, wmp) \ 768 if (!(wmp)->wm_wanted_count) { \ 769 sd_free_inlist_wmap((un), (wmp)); \ 770 (wmp) = NULL; \ 771 } 772 773 #define CHK_N_FREEWMP(un, wmp) \ 774 if (!ONLIST((un), (wmp))) { \ 775 kmem_cache_free((un)->un_wm_cache, (wmp)); \ 776 (wmp) = NULL; \ 777 } else { \ 778 FREE_ONLIST_WMAP((un), (wmp)); \ 779 } 780 781 /* 782 * Values used to in wm_flags field of sd_w_map. 783 */ 784 #define SD_WTYPE_SIMPLE 0x001 /* Write aligned at blksize boundary */ 785 #define SD_WTYPE_RMW 0x002 /* Write requires read-modify-write */ 786 #define SD_WM_BUSY 0x100 /* write-map is busy */ 787 788 /* 789 * RMW type 790 */ 791 #define SD_RMW_TYPE_DEFAULT 0 /* do rmw with warning message */ 792 #define SD_RMW_TYPE_NO_WARNING 1 /* do rmw without warning message */ 793 #define SD_RMW_TYPE_RETURN_ERROR 2 /* rmw disabled */ 794 795 /* Device error kstats */ 796 struct sd_errstats { 797 struct kstat_named sd_softerrs; 798 struct kstat_named sd_harderrs; 799 struct kstat_named sd_transerrs; 800 struct kstat_named sd_vid; 801 struct kstat_named sd_pid; 802 struct kstat_named sd_revision; 803 struct kstat_named sd_serial; 804 struct kstat_named sd_capacity; 805 struct kstat_named sd_rq_media_err; 806 struct kstat_named sd_rq_ntrdy_err; 807 struct kstat_named sd_rq_nodev_err; 808 struct kstat_named sd_rq_recov_err; 809 struct kstat_named sd_rq_illrq_err; 810 struct kstat_named sd_rq_pfa_err; 811 }; 812 813 814 /* 815 * Structs and definitions for SCSI-3 Persistent Reservation 816 */ 817 typedef struct sd_prin_readkeys { 818 uint32_t generation; 819 uint32_t len; 820 mhioc_resv_key_t *keylist; 821 } sd_prin_readkeys_t; 822 823 typedef struct sd_readresv_desc { 824 mhioc_resv_key_t resvkey; 825 uint32_t scope_specific_addr; 826 uint8_t reserved_1; 827 #if defined(_BIT_FIELDS_LTOH) 828 uint8_t type:4, 829 scope:4; 830 #elif defined(_BIT_FIELDS_HTOL) 831 uint8_t scope:4, 832 type:4; 833 #else 834 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 835 #endif /* _BIT_FIELDS_LTOH */ 836 uint8_t reserved_2; 837 uint8_t reserved_3; 838 } sd_readresv_desc_t; 839 840 typedef struct sd_prin_readresv { 841 uint32_t generation; 842 uint32_t len; 843 sd_readresv_desc_t *readresv_desc; 844 } sd_prin_readresv_t; 845 846 typedef struct sd_prout { 847 uchar_t res_key[MHIOC_RESV_KEY_SIZE]; 848 uchar_t service_key[MHIOC_RESV_KEY_SIZE]; 849 uint32_t scope_address; 850 #if defined(_BIT_FIELDS_LTOH) 851 uchar_t aptpl:1, 852 reserved:7; 853 #elif defined(_BIT_FIELDS_HTOL) 854 uchar_t reserved:7, 855 aptpl:1; 856 #else 857 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined 858 #endif /* _BIT_FIELDS_LTOH */ 859 uchar_t reserved_1; 860 uint16_t ext_len; 861 } sd_prout_t; 862 863 #define SD_READ_KEYS 0x00 864 #define SD_READ_RESV 0x01 865 866 #define SD_SCSI3_REGISTER 0x00 867 #define SD_SCSI3_RESERVE 0x01 868 #define SD_SCSI3_RELEASE 0x02 869 #define SD_SCSI3_PREEMPTANDABORT 0x05 870 #define SD_SCSI3_REGISTERANDIGNOREKEY 0x06 871 872 /* 873 * Note: The default init of un_reservation_type is to the value of '0' 874 * (from the ddi_softs_state_zalloc) which means it is defaulting to SCSI-3 875 * reservation type. This is ok because during attach we use a SCSI-3 876 * PRIORITY RESERVE IN command to determine the reservation type, and set 877 * un_reservation_type for all cases. 878 */ 879 #define SD_SCSI3_RESERVATION 0x0 880 #define SD_SCSI2_RESERVATION 0x1 881 #define SCSI3_RESV_DESC_LEN 16 882 883 /* 884 * Reservation Status's 885 */ 886 #define SD_RELEASE 0x0000 887 #define SD_RESERVE 0x0001 888 #define SD_TKOWN 0x0002 889 #define SD_LOST_RESERVE 0x0004 890 #define SD_FAILFAST 0x0080 891 #define SD_WANT_RESERVE 0x0100 892 #define SD_RESERVATION_CONFLICT 0x0200 893 #define SD_PRIORITY_RESERVE 0x0400 894 895 #define SD_TARGET_IS_UNRESERVED 0 896 #define SD_TARGET_IS_RESERVED 1 897 898 /* 899 * Save page in mode_select 900 */ 901 #define SD_DONTSAVE_PAGE 0 902 #define SD_SAVE_PAGE 1 903 904 /* 905 * Delay before reclaiming reservation is 6 seconds, in units of micro seconds 906 */ 907 #define SD_REINSTATE_RESV_DELAY 6000000 908 909 #define SD_MODE2_BLKSIZE 2336 /* bytes */ 910 911 /* 912 * Resource type definitions for multi host control operations. Specifically, 913 * queue and request definitions for reservation request handling between the 914 * scsi facility callback function (sd_mhd_watch_cb) and the reservation 915 * reclaim thread (sd_resv_reclaim_thread) 916 */ 917 struct sd_thr_request { 918 dev_t dev; 919 struct sd_thr_request *sd_thr_req_next; 920 }; 921 922 struct sd_resv_reclaim_request { 923 kthread_t *srq_resv_reclaim_thread; 924 struct sd_thr_request *srq_thr_req_head; 925 struct sd_thr_request *srq_thr_cur_req; 926 kcondvar_t srq_inprocess_cv; 927 kmutex_t srq_resv_reclaim_mutex; 928 kcondvar_t srq_resv_reclaim_cv; 929 }; 930 931 _NOTE(MUTEX_PROTECTS_DATA(sd_resv_reclaim_request::srq_resv_reclaim_mutex, 932 sd_resv_reclaim_request)) 933 _NOTE(SCHEME_PROTECTS_DATA("unshared data", sd_thr_request)) 934 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sd_prout)) 935 936 937 938 /* 939 * Driver Logging Components 940 * 941 * These components cover the functional entry points and areas of the 942 * driver. A component value is used for the entry point and utility 943 * functions used by the entry point. The common component value is used 944 * in those routines that are called from many areas of the driver. 945 * 946 * This can be done by adding the following two lines to /etc/system: 947 * set sd:sd_component_mask=0x00080000 948 * set sd:sd_level_mask=0x00000008 949 */ 950 #define SD_LOG_PROBE 0x00000001 951 #define SD_LOG_ATTACH_DETACH 0x00000002 952 #define SD_LOG_OPEN_CLOSE 0x00000004 953 #define SD_LOG_READ_WRITE 0x00000008 954 #define SD_LOG_POWER 0x00000010 955 #define SD_LOG_IOCTL 0x00000020 956 #define SD_LOG_IOCTL_MHD 0x00000040 957 #define SD_LOG_IOCTL_RMMEDIA 0x00000080 958 #define SD_LOG_IOCTL_DKIO 0x00000100 959 #define SD_LOG_IO 0x00000200 960 #define SD_LOG_IO_CORE 0x00000400 961 #define SD_LOG_IO_DISKSORT 0x00000800 962 #define SD_LOG_IO_PARTITION 0x00001000 963 #define SD_LOG_IO_RMMEDIA 0x00002000 964 #define SD_LOG_IO_CHKSUM 0x00004000 965 #define SD_LOG_IO_SDIOCTL 0x00008000 966 #define SD_LOG_IO_PM 0x00010000 967 #define SD_LOG_ERROR 0x00020000 968 #define SD_LOG_DUMP 0x00040000 969 #define SD_LOG_COMMON 0x00080000 970 #define SD_LOG_SDTEST 0x00100000 971 #define SD_LOG_IOERR 0x00200000 972 #define SD_LOG_IO_FAILFAST 0x00400000 973 974 /* Driver Logging Levels */ 975 #define SD_LOGMASK_ERROR 0x00000001 976 #define SD_LOGMASK_DUMP_MEM 0x00000002 977 #define SD_LOGMASK_INFO 0x00000004 978 #define SD_LOGMASK_TRACE 0x00000008 979 #define SD_LOGMASK_DIAG 0x00000010 980 981 /* Driver Logging Formats */ 982 #define SD_LOG_HEX 0x00000001 983 #define SD_LOG_CHAR 0x00000002 984 985 /* 986 * The following macros should be used to log driver debug information 987 * only. The output is filtered according to the component and level mask 988 * values. Non-debug information, such as driver warnings intended for 989 * the user should be logged via the scsi_log facility to ensure that 990 * they are not filtered. 991 */ 992 #if DEBUG || lint 993 #define SDDEBUG 994 995 /* SD_ERROR is called to log driver error conditions */ 996 #define SD_ERROR sd_log_err 997 998 /* SD_TRACE is called to log driver trace conditions (function entry/exit) */ 999 #define SD_TRACE sd_log_trace 1000 1001 /* SD_INFO is called to log general purpose driver info */ 1002 #define SD_INFO sd_log_info 1003 1004 /* SD_DUMP_MEMORY is called to dump a data buffer to the log */ 1005 #define SD_DUMP_MEMORY sd_dump_memory 1006 1007 /* RESET/ABORTS testing ioctls */ 1008 #define DKIOCRESET (DKIOC|14) 1009 #define DKIOCABORT (DKIOC|15) 1010 1011 #ifdef SD_FAULT_INJECTION 1012 /* 1013 * sd_fi_pkt replicates the variables that are exposed through pkt 1014 * 1015 * sd_fi_xb replicates the variables that are exposed through xb 1016 * 1017 * sd_fi_un replicates the variables that are exposed through un 1018 * 1019 * sd_fi_arq replicates the variables that are 1020 * exposed for Auto-Reqeust-Sense 1021 * 1022 */ 1023 struct sd_fi_pkt { 1024 uint_t pkt_flags; /* flags */ 1025 uchar_t pkt_scbp; /* pointer to status block */ 1026 uchar_t pkt_cdbp; /* pointer to command block */ 1027 uint_t pkt_state; /* state of command */ 1028 uint_t pkt_statistics; /* statistics */ 1029 uchar_t pkt_reason; /* reason completion called */ 1030 }; 1031 1032 struct sd_fi_xb { 1033 daddr_t xb_blkno; 1034 ssize_t xb_dma_resid; 1035 short xb_retry_count; 1036 short xb_victim_retry_count; 1037 uchar_t xb_sense_status; 1038 uint_t xb_sense_state; 1039 ssize_t xb_sense_resid; 1040 uchar_t xb_sense_data[SENSE_LENGTH]; 1041 uchar_t es_code; 1042 uchar_t es_key; 1043 uchar_t es_add_code; 1044 uchar_t es_qual_code; 1045 }; 1046 1047 struct sd_fi_un { 1048 uchar_t inq_rmb; 1049 uchar_t un_ctype; 1050 uint_t un_notready_retry_count; 1051 uint_t un_reset_retry_count; 1052 uchar_t un_reservation_type; 1053 ushort_t un_notrdy_delay; 1054 short un_resvd_status; 1055 uint32_t 1056 un_f_arq_enabled, 1057 un_f_allow_bus_device_reset, 1058 un_f_opt_queueing; 1059 timeout_id_t un_restart_timeid; 1060 }; 1061 1062 struct sd_fi_arq { 1063 struct scsi_status sts_status; 1064 struct scsi_status sts_rqpkt_status; 1065 uchar_t sts_rqpkt_reason; 1066 uchar_t sts_rqpkt_resid; 1067 uint_t sts_rqpkt_state; 1068 uint_t sts_rqpkt_statistics; 1069 struct scsi_extended_sense sts_sensedata; 1070 }; 1071 1072 /* 1073 * Conditional set def 1074 */ 1075 #define SD_CONDSET(a, b, c, d) \ 1076 { \ 1077 a->c = ((fi_ ## b)->c); \ 1078 SD_INFO(SD_LOG_IOERR, un, \ 1079 "sd_fault_injection:" \ 1080 "setting %s to %d\n", \ 1081 d, ((fi_ ## b)->c)); \ 1082 } 1083 1084 /* SD FaultInjection ioctls */ 1085 #define SDIOC ('T'<<8) 1086 #define SDIOCSTART (SDIOC|1) 1087 #define SDIOCSTOP (SDIOC|2) 1088 #define SDIOCINSERTPKT (SDIOC|3) 1089 #define SDIOCINSERTXB (SDIOC|4) 1090 #define SDIOCINSERTUN (SDIOC|5) 1091 #define SDIOCINSERTARQ (SDIOC|6) 1092 #define SDIOCPUSH (SDIOC|7) 1093 #define SDIOCRETRIEVE (SDIOC|8) 1094 #define SDIOCRUN (SDIOC|9) 1095 #endif 1096 1097 #else 1098 1099 #undef SDDEBUG 1100 #define SD_ERROR { if (0) sd_log_err; } 1101 #define SD_TRACE { if (0) sd_log_trace; } 1102 #define SD_INFO { if (0) sd_log_info; } 1103 #define SD_DUMP_MEMORY { if (0) sd_dump_memory; } 1104 #endif 1105 1106 1107 /* 1108 * Miscellaneous macros 1109 */ 1110 1111 #define SD_USECTOHZ(x) (drv_usectohz((x)*1000000)) 1112 #define SD_GET_PKT_STATUS(pktp) ((*(pktp)->pkt_scbp) & STATUS_MASK) 1113 1114 #define SD_BIOERROR(bp, errcode) \ 1115 if ((bp)->b_resid == 0) { \ 1116 (bp)->b_resid = (bp)->b_bcount; \ 1117 } \ 1118 if ((bp)->b_error == 0) { \ 1119 bioerror(bp, errcode); \ 1120 } \ 1121 (bp)->b_flags |= B_ERROR; 1122 1123 #define SD_FILL_SCSI1_LUN_CDB(lunp, cdbp) \ 1124 if (! (lunp)->un_f_is_fibre && \ 1125 SD_INQUIRY((lunp))->inq_ansi == 0x01) { \ 1126 int _lun = ddi_prop_get_int(DDI_DEV_T_ANY, \ 1127 SD_DEVINFO((lunp)), DDI_PROP_DONTPASS, \ 1128 SCSI_ADDR_PROP_LUN, 0); \ 1129 if (_lun > 0) { \ 1130 (cdbp)->scc_lun = _lun; \ 1131 } \ 1132 } 1133 1134 #define SD_FILL_SCSI1_LUN(lunp, pktp) \ 1135 SD_FILL_SCSI1_LUN_CDB((lunp), (union scsi_cdb *)(pktp)->pkt_cdbp) 1136 1137 /* 1138 * Disk driver states 1139 */ 1140 1141 #define SD_STATE_NORMAL 0 1142 #define SD_STATE_OFFLINE 1 1143 #define SD_STATE_RWAIT 2 1144 #define SD_STATE_DUMPING 3 1145 #define SD_STATE_SUSPENDED 4 1146 #define SD_STATE_PM_CHANGING 5 1147 1148 /* 1149 * The table is to be interpreted as follows: The rows lists all the states 1150 * and each column is a state that a state in each row *can* reach. The entries 1151 * in the table list the event that cause that transition to take place. 1152 * For e.g.: To go from state RWAIT to SUSPENDED, event (d)-- which is the 1153 * invocation of DDI_SUSPEND-- has to take place. Note the same event could 1154 * cause the transition from one state to two different states. e.g., from 1155 * state SUSPENDED, when we get a DDI_RESUME, we just go back to the *last 1156 * state* whatever that might be. (NORMAL or OFFLINE). 1157 * 1158 * 1159 * State Transition Table: 1160 * 1161 * NORMAL OFFLINE RWAIT DUMPING SUSPENDED PM_SUSPENDED 1162 * 1163 * NORMAL - (a) (b) (c) (d) (h) 1164 * 1165 * OFFLINE (e) - (e) (c) (d) NP 1166 * 1167 * RWAIT (f) NP - (c) (d) (h) 1168 * 1169 * DUMPING NP NP NP - NP NP 1170 * 1171 * SUSPENDED (g) (g) (b) NP* - NP 1172 * 1173 * PM_SUSPENDED (i) NP (b) (c) (d) - 1174 * 1175 * NP : Not Possible. 1176 * (a): Disk does not respond. 1177 * (b): Packet Allocation Fails 1178 * (c): Panic - Crash dump 1179 * (d): DDI_SUSPEND is called. 1180 * (e): Disk has a successful I/O completed. 1181 * (f): sdrunout() calls sdstart() which sets it NORMAL 1182 * (g): DDI_RESUME is called. 1183 * (h): Device threshold exceeded pm framework called power 1184 * entry point or pm_lower_power called in detach. 1185 * (i): When new I/O come in. 1186 * * : When suspended, we dont change state during panic dump 1187 */ 1188 1189 1190 #define SD_MAX_THROTTLE 256 1191 #define SD_MIN_THROTTLE 8 1192 /* 1193 * Lowest valid max. and min. throttle value. 1194 * This is set to 2 because if un_min_throttle were allowed to be 1 then 1195 * un_throttle would never get set to a value less than un_min_throttle 1196 * (0 is a special case) which means it would never get set back to 1197 * un_saved_throttle in routine sd_restore_throttle(). 1198 */ 1199 #define SD_LOWEST_VALID_THROTTLE 2 1200 1201 1202 1203 /* Return codes for sd_send_polled_cmd() and sd_scsi_poll() */ 1204 #define SD_CMD_SUCCESS 0 1205 #define SD_CMD_FAILURE 1 1206 #define SD_CMD_RESERVATION_CONFLICT 2 1207 #define SD_CMD_ILLEGAL_REQUEST 3 1208 #define SD_CMD_BECOMING_READY 4 1209 #define SD_CMD_CHECK_CONDITION 5 1210 1211 /* Return codes for sd_ready_and_valid */ 1212 #define SD_READY_VALID 0 1213 #define SD_NOT_READY_VALID 1 1214 #define SD_RESERVED_BY_OTHERS 2 1215 1216 #define SD_PATH_STANDARD 0 1217 #define SD_PATH_DIRECT 1 1218 #define SD_PATH_DIRECT_PRIORITY 2 1219 1220 #define SD_UNIT_ATTENTION_RETRY 40 1221 1222 /* 1223 * The following three are bit flags passed into sd_send_scsi_TEST_UNIT_READY 1224 * to control specific behavior. 1225 */ 1226 #define SD_CHECK_FOR_MEDIA 0x01 1227 #define SD_DONT_RETRY_TUR 0x02 1228 #define SD_BYPASS_PM 0x04 1229 1230 #define SD_GROUP0_MAX_ADDRESS (0x1fffff) 1231 #define SD_GROUP0_MAXCOUNT (0xff) 1232 #define SD_GROUP1_MAX_ADDRESS (0xffffffff) 1233 #define SD_GROUP1_MAXCOUNT (0xffff) 1234 1235 #define SD_BECOMING_ACTIVE 0x01 1236 #define SD_REMOVAL_ALLOW 0 1237 #define SD_REMOVAL_PREVENT 1 1238 1239 #define SD_GET_PKT_OPCODE(pktp) \ 1240 (((union scsi_cdb *)((pktp)->pkt_cdbp))->cdb_un.cmd) 1241 1242 1243 #define SD_NO_RETRY_ISSUED 0 1244 #define SD_DELAYED_RETRY_ISSUED 1 1245 #define SD_IMMEDIATE_RETRY_ISSUED 2 1246 1247 #if defined(__i386) || defined(__amd64) 1248 #define SD_UPDATE_B_RESID(bp, pktp) \ 1249 ((bp)->b_resid += (pktp)->pkt_resid + (SD_GET_XBUF(bp)->xb_dma_resid)) 1250 #else 1251 #define SD_UPDATE_B_RESID(bp, pktp) \ 1252 ((bp)->b_resid += (pktp)->pkt_resid) 1253 #endif 1254 1255 1256 #define SD_RETRIES_MASK 0x00FF 1257 #define SD_RETRIES_NOCHECK 0x0000 1258 #define SD_RETRIES_STANDARD 0x0001 1259 #define SD_RETRIES_VICTIM 0x0002 1260 #define SD_RETRIES_BUSY 0x0003 1261 #define SD_RETRIES_UA 0x0004 1262 #define SD_RETRIES_ISOLATE 0x8000 1263 #define SD_RETRIES_FAILFAST 0x4000 1264 1265 #define SD_UPDATE_RESERVATION_STATUS(un, pktp) \ 1266 if (((pktp)->pkt_reason == CMD_RESET) || \ 1267 ((pktp)->pkt_statistics & (STAT_BUS_RESET | STAT_DEV_RESET))) { \ 1268 if (((un)->un_resvd_status & SD_RESERVE) == SD_RESERVE) { \ 1269 (un)->un_resvd_status |= \ 1270 (SD_LOST_RESERVE | SD_WANT_RESERVE); \ 1271 } \ 1272 } 1273 1274 #define SD_SENSE_DATA_IS_VALID 0 1275 #define SD_SENSE_DATA_IS_INVALID 1 1276 1277 /* 1278 * Delay (in seconds) before restoring the "throttle limit" back 1279 * to its maximum value. 1280 * 60 seconds is what we will wait for to reset the 1281 * throttle back to it SD_MAX_THROTTLE for TRAN_BUSY. 1282 * 10 seconds for STATUS_QFULL because QFULL will incrementally 1283 * increase the throttle limit until it reaches max value. 1284 */ 1285 #define SD_RESET_THROTTLE_TIMEOUT 60 1286 #define SD_QFULL_THROTTLE_TIMEOUT 10 1287 1288 #define SD_THROTTLE_TRAN_BUSY 0 1289 #define SD_THROTTLE_QFULL 1 1290 1291 #define SD_THROTTLE_RESET_INTERVAL \ 1292 (sd_reset_throttle_timeout * drv_usectohz(1000000)) 1293 1294 #define SD_QFULL_THROTTLE_RESET_INTERVAL \ 1295 (sd_qfull_throttle_timeout * drv_usectohz(1000000)) 1296 1297 1298 /* 1299 * xb_pkt_flags defines 1300 * SD_XB_DMA_FREED indicates the scsi_pkt has had its DMA resources freed 1301 * by a call to scsi_dmafree(9F). The resources must be reallocated before 1302 * before a call to scsi_transport can be made again. 1303 * SD_XB_USCSICMD indicates the scsi request is a uscsi request 1304 * SD_XB_INITPKT_MASK: since this field is also used to store flags for 1305 * a scsi_init_pkt(9F) call, we need a mask to make sure that we don't 1306 * pass any unintended bits to scsi_init_pkt(9F) (ugly hack). 1307 */ 1308 #define SD_XB_DMA_FREED 0x20000000 1309 #define SD_XB_USCSICMD 0x40000000 1310 #define SD_XB_INITPKT_MASK (PKT_CONSISTENT | PKT_DMA_PARTIAL) 1311 1312 /* 1313 * Extension for the buf(9s) struct that we receive from a higher 1314 * layer. Located by b_private in the buf(9S). (The previous contents 1315 * of b_private are saved & restored before calling biodone(9F).) 1316 */ 1317 struct sd_xbuf { 1318 1319 struct sd_lun *xb_un; /* Ptr to associated sd_lun */ 1320 struct scsi_pkt *xb_pktp; /* Ptr to associated scsi_pkt */ 1321 1322 /* 1323 * xb_pktinfo points to any optional data that may be needed 1324 * by the initpkt and/or destroypkt functions. Typical 1325 * use might be to point to a struct uscsi_cmd. 1326 */ 1327 void *xb_pktinfo; 1328 1329 /* 1330 * Layer-private data area. This may be used by any layer to store 1331 * layer-specific data on a per-IO basis. Typical usage is for an 1332 * iostart routine to save some info here for later use by its 1333 * partner iodone routine. This area may be used to hold data or 1334 * a pointer to a data block that is allocated/freed by the layer's 1335 * iostart/iodone routines. Allocation & management policy for the 1336 * layer-private area is defined & implemented by each specific 1337 * layer as required. 1338 * 1339 * IMPORTANT: Since a higher layer may depend on the value in the 1340 * xb_private field, each layer must ensure that it returns the 1341 * buf/xbuf to the next higher layer (via SD_NEXT_IODONE()) with 1342 * the SAME VALUE in xb_private as when the buf/xbuf was first 1343 * received by the layer's iostart routine. Typically this is done 1344 * by the iostart routine saving the contents of xb_private into 1345 * a place in the layer-private data area, and the iodone routine 1346 * restoring the value of xb_private before deallocating the 1347 * layer-private data block and calling SD_NEXT_IODONE(). Of course, 1348 * if a layer never modifies xb_private in a buf/xbuf from a higher 1349 * layer, there will be no need to restore the value. 1350 * 1351 * Note that in the case where a layer _creates_ a buf/xbuf (such as 1352 * by calling sd_shadow_buf_alloc()) to pass to a lower layer, it is 1353 * not necessary to preserve the contents of xb_private as there is 1354 * no higher layer dependency on the value of xb_private. Such a 1355 * buf/xbuf must be deallocated by the layer that allocated it and 1356 * must *NEVER* be passed up to a higher layer. 1357 */ 1358 void *xb_private; /* Layer-private data block */ 1359 1360 /* 1361 * We do not use the b_blkno provided in the buf(9S), as we need to 1362 * make adjustments to it in the driver, but it is not a field that 1363 * the driver owns or is free to modify. 1364 */ 1365 daddr_t xb_blkno; /* Absolute block # on target */ 1366 uint64_t xb_ena; /* ena for a specific SCSI command */ 1367 1368 int xb_chain_iostart; /* iostart side index */ 1369 int xb_chain_iodone; /* iodone side index */ 1370 int xb_pkt_flags; /* Flags for scsi_init_pkt() */ 1371 ssize_t xb_dma_resid; 1372 short xb_retry_count; 1373 short xb_victim_retry_count; 1374 short xb_ua_retry_count; /* unit_attention retry counter */ 1375 short xb_nr_retry_count; /* not ready retry counter */ 1376 1377 /* 1378 * Various status and data used when a RQS command is run on 1379 * the behalf of this command. 1380 */ 1381 struct buf *xb_sense_bp; /* back ptr to buf, for RQS */ 1382 uint_t xb_sense_state; /* scsi_pkt state of RQS command */ 1383 ssize_t xb_sense_resid; /* residual of RQS command */ 1384 uchar_t xb_sense_status; /* scsi status byte of RQS command */ 1385 uchar_t xb_sense_data[SENSE_LENGTH]; /* sense data from RQS cmd */ 1386 /* 1387 * Extra sense larger than SENSE_LENGTH will be allocated 1388 * right after xb_sense_data[SENSE_LENGTH]. Please do not 1389 * add any new field after it. 1390 */ 1391 }; 1392 1393 _NOTE(SCHEME_PROTECTS_DATA("unique per pkt", sd_xbuf)) 1394 1395 #define SD_PKT_ALLOC_SUCCESS 0 1396 #define SD_PKT_ALLOC_FAILURE 1 1397 #define SD_PKT_ALLOC_FAILURE_NO_DMA 2 1398 #define SD_PKT_ALLOC_FAILURE_PKT_TOO_SMALL 3 1399 #define SD_PKT_ALLOC_FAILURE_CDB_TOO_SMALL 4 1400 1401 #define SD_GET_XBUF(bp) ((struct sd_xbuf *)((bp)->b_private)) 1402 #define SD_GET_UN(bp) ((SD_GET_XBUF(bp))->xb_un) 1403 #define SD_GET_PKTP(bp) ((SD_GET_XBUF(bp))->xb_pktp) 1404 #define SD_GET_BLKNO(bp) ((SD_GET_XBUF(bp))->xb_blkno) 1405 1406 /* 1407 * Special-purpose struct for sd_send_scsi_cmd() to pass command-specific 1408 * data through the layering chains to sd_initpkt_for_uscsi(). 1409 */ 1410 struct sd_uscsi_info { 1411 int ui_flags; 1412 struct uscsi_cmd *ui_cmdp; 1413 /* 1414 * ui_dkc is used by sd_send_scsi_SYNCHRONIZE_CACHE() to allow 1415 * for async completion notification. 1416 */ 1417 struct dk_callback ui_dkc; 1418 /* 1419 * The following fields are to be used for FMA ereport generation. 1420 */ 1421 uchar_t ui_pkt_reason; 1422 uint32_t ui_pkt_state; 1423 uint32_t ui_pkt_statistics; 1424 uint64_t ui_lba; 1425 uint64_t ui_ena; 1426 }; 1427 1428 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sd_uscsi_info)) 1429 1430 /* 1431 * This structure is used to issue 'internal' command sequences from the 1432 * driver's attach(9E)/open(9E)/etc entry points. It provides a common context 1433 * for issuing command sequences, with the ability to issue a command 1434 * and provide expected/unexpected assessment of results at any code 1435 * level within the sd_ssc_t scope and preserve the information needed 1436 * produce telemetry for the problem, when needed, from a single 1437 * outer-most-scope point. 1438 * 1439 * The sd_ssc_t abstraction should result in well-structured code where 1440 * the basic code structure is not jeprodized by future localized improvement. 1441 * 1442 * o Scope for a sequence of commands. 1443 * o Within a scoped sequence of commands, provides a single top-level 1444 * location for initiating telementry generation from captured data. 1445 * o Provide a common place to capture command execution data and driver 1446 * assessment information for delivery to telemetry generation point. 1447 * o Mechanism to get device-as-detector (dad) and transport telemetry 1448 * information from interrupt context (sdintr) back to the internal 1449 * command 'driver-assessment' code. 1450 * o Ability to record assessment, and return information back to 1451 * top-level telemetry generation code when an unexpected condition 1452 * occurs. 1453 * o For code paths were an command itself was successful but 1454 * the data returned looks suspect, the ability to record 1455 * 'unexpected data' conditions. 1456 * o Record assessment of issuing the command and interpreting 1457 * the returned data for consumption by top-level ereport telemetry 1458 * generation code. 1459 * o All data required to produce telemetry available off single data 1460 * structure. 1461 */ 1462 typedef struct { 1463 struct sd_lun *ssc_un; 1464 struct uscsi_cmd *ssc_uscsi_cmd; 1465 struct sd_uscsi_info *ssc_uscsi_info; 1466 int ssc_flags; /* Bits for flags */ 1467 char ssc_info[1024]; /* Buffer holding for info */ 1468 } sd_ssc_t; 1469 1470 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sd_ssc_t)) 1471 1472 /* 1473 * This struct switch different 'type-of-assessment' 1474 * as an input argument for sd_ssc_assessment 1475 * 1476 * 1477 * in sd_send_scsi_XXX or upper-level 1478 * 1479 * - SD_FMT_IGNORE 1480 * when send uscsi command failed, and 1481 * the following code check sense data properly. 1482 * we use 'ignore' to let sd_ssc_assessment 1483 * trust current and do not do additional 1484 * checking for the uscsi command. 1485 * 1486 * - SD_FMT_IGNORE_COMPROMISE 1487 * when send uscsi command failed, and 1488 * the code does not check sense data or we don't 1489 * think the checking is 100% coverage. We mark it 1490 * as 'compromise' to indicate that we need to 1491 * enhance current code in the future. 1492 * 1493 * - SD_FMT_STATUS_CHECK 1494 * when send uscsi command failed and cause sd entries 1495 * failed finally, we need to send out real reason against 1496 * status of uscsi command no matter if there is sense back 1497 * or not. 1498 * 1499 * - SD_FMT_STANDARD 1500 * when send uscsi command succeeded, and 1501 * the code does not check sense data, we need to check 1502 * it to make sure there is no 'fault'. 1503 */ 1504 enum sd_type_assessment { 1505 SD_FMT_IGNORE = 0, 1506 SD_FMT_IGNORE_COMPROMISE, 1507 SD_FMT_STATUS_CHECK, 1508 SD_FMT_STANDARD 1509 }; 1510 1511 /* 1512 * The following declaration are used as hints of severities when posting 1513 * SCSI FMA ereport. 1514 * - SD_FM_DRV_FATAL 1515 * When posting ereport with SD_FM_DRV_FATAL, the payload 1516 * "driver-assessment" will be "fail" or "fatal" depending on the 1517 * sense-key value. If driver-assessment is "fail", it will be 1518 * propagated to an upset, otherwise, a fault will be propagated. 1519 * - SD_FM_DRV_RETRY 1520 * When posting ereport with SD_FM_DRV_RETRY, the payload 1521 * "driver-assessment" will be "retry", and it will be propagated to an 1522 * upset. 1523 * - SD_FM_DRV_RECOVERY 1524 * When posting ereport with SD_FM_DRV_RECOVERY, the payload 1525 * "driver-assessment" will be "recovered", and it will be propagated to 1526 * an upset. 1527 * - SD_FM_DRV_NOTICE 1528 * When posting ereport with SD_FM_DRV_NOTICE, the payload 1529 * "driver-assessment" will be "info", and it will be propagated to an 1530 * upset. 1531 */ 1532 enum sd_driver_assessment { 1533 SD_FM_DRV_FATAL = 0, 1534 SD_FM_DRV_RETRY, 1535 SD_FM_DRV_RECOVERY, 1536 SD_FM_DRV_NOTICE 1537 }; 1538 1539 /* 1540 * The following structure is used as a buffer when posting SCSI FMA 1541 * ereport for raw i/o. It will be allocated per sd_lun when entering 1542 * sd_unit_attach and will be deallocated when entering sd_unit_detach. 1543 */ 1544 struct sd_fm_internal { 1545 sd_ssc_t fm_ssc; 1546 struct uscsi_cmd fm_ucmd; 1547 struct sd_uscsi_info fm_uinfo; 1548 int fm_log_level; 1549 }; 1550 1551 /* 1552 * Bits in ssc_flags 1553 * sd_ssc_init will mark ssc_flags = SSC_FLAGS_UNKNOWN 1554 * sd_ssc_send will mark ssc_flags = SSC_FLAGS_CMD_ISSUED & 1555 * SSC_FLAGS_NEED_ASSESSMENT 1556 * sd_ssc_assessment will clear SSC_FLAGS_CMD_ISSUED and 1557 * SSC_FLAGS_NEED_ASSESSMENT bits of ssc_flags. 1558 * SSC_FLAGS_CMD_ISSUED is to indicate whether the SCSI command has been 1559 * sent out. 1560 * SSC_FLAGS_NEED_ASSESSMENT is to guarantee we will not miss any 1561 * assessment point. 1562 */ 1563 #define SSC_FLAGS_UNKNOWN 0x00000000 1564 #define SSC_FLAGS_CMD_ISSUED 0x00000001 1565 #define SSC_FLAGS_NEED_ASSESSMENT 0x00000002 1566 #define SSC_FLAGS_TRAN_ABORT 0x00000004 1567 1568 /* 1569 * The following bits in ssc_flags are for detecting unexpected data. 1570 */ 1571 #define SSC_FLAGS_INVALID_PKT_REASON 0x00000010 1572 #define SSC_FLAGS_INVALID_STATUS 0x00000020 1573 #define SSC_FLAGS_INVALID_SENSE 0x00000040 1574 #define SSC_FLAGS_INVALID_DATA 0x00000080 1575 1576 /* 1577 * The following are the values available for sd_fm_internal::fm_log_level. 1578 * SD_FM_LOG_NSUP The driver will log things in traditional way as if 1579 * the SCSI FMA feature is unavailable. 1580 * SD_FM_LOG_SILENT The driver will not print out syslog for FMA error 1581 * telemetry, all the error telemetries will go into 1582 * FMA error log. 1583 * SD_FM_LOG_EREPORT The driver will both print the FMA error telemetry 1584 * and post the error report, but the traditional 1585 * syslog for error telemetry will be suppressed. 1586 */ 1587 #define SD_FM_LOG_NSUP 0 1588 #define SD_FM_LOG_SILENT 1 1589 #define SD_FM_LOG_EREPORT 2 1590 1591 /* 1592 * Macros and definitions for driver kstats and errstats 1593 * 1594 * Some third-party layered drivers (they know who they are) do not maintain 1595 * their open/close counts correctly which causes our kstat reporting to get 1596 * messed up & results in panics. These macros will update the driver kstats 1597 * only if the counts are valid. 1598 */ 1599 #define SD_UPDATE_COMMON_KSTATS(kstat_function, kstatp) \ 1600 if ((kstat_function) == kstat_runq_exit || \ 1601 ((kstat_function) == kstat_runq_back_to_waitq)) { \ 1602 if (((kstat_io_t *)(kstatp))->rcnt) { \ 1603 kstat_function((kstatp)); \ 1604 } else { \ 1605 cmn_err(CE_WARN, \ 1606 "kstat rcnt == 0 when exiting runq, please check\n"); \ 1607 } \ 1608 } else if ((kstat_function) == kstat_waitq_exit || \ 1609 ((kstat_function) == kstat_waitq_to_runq)) { \ 1610 if (((kstat_io_t *)(kstatp))->wcnt) { \ 1611 kstat_function(kstatp); \ 1612 } else { \ 1613 cmn_err(CE_WARN, \ 1614 "kstat wcnt == 0 when exiting waitq, please check\n"); \ 1615 } \ 1616 } else { \ 1617 kstat_function(kstatp); \ 1618 } 1619 1620 #define SD_UPDATE_KSTATS(un, kstat_function, bp) \ 1621 ASSERT(SD_GET_XBUF(bp) != NULL); \ 1622 if (SD_IS_BUFIO(SD_GET_XBUF(bp))) { \ 1623 struct kstat *pksp = \ 1624 (un)->un_pstats[SDPART((bp)->b_edev)]; \ 1625 ASSERT(mutex_owned(SD_MUTEX(un))); \ 1626 if ((un)->un_stats != NULL) { \ 1627 kstat_io_t *kip = KSTAT_IO_PTR((un)->un_stats); \ 1628 SD_UPDATE_COMMON_KSTATS(kstat_function, kip); \ 1629 } \ 1630 if (pksp != NULL) { \ 1631 kstat_io_t *kip = KSTAT_IO_PTR(pksp); \ 1632 SD_UPDATE_COMMON_KSTATS(kstat_function, kip); \ 1633 } \ 1634 } 1635 1636 #define SD_UPDATE_ERRSTATS(un, x) \ 1637 if ((un)->un_errstats != NULL) { \ 1638 struct sd_errstats *stp; \ 1639 ASSERT(mutex_owned(SD_MUTEX(un))); \ 1640 stp = (struct sd_errstats *)(un)->un_errstats->ks_data; \ 1641 stp->x.value.ui32++; \ 1642 } 1643 1644 #define SD_UPDATE_RDWR_STATS(un, bp) \ 1645 if ((un)->un_stats != NULL) { \ 1646 kstat_io_t *kip = KSTAT_IO_PTR((un)->un_stats); \ 1647 size_t n_done = (bp)->b_bcount - (bp)->b_resid; \ 1648 if ((bp)->b_flags & B_READ) { \ 1649 kip->reads++; \ 1650 kip->nread += n_done; \ 1651 } else { \ 1652 kip->writes++; \ 1653 kip->nwritten += n_done; \ 1654 } \ 1655 } 1656 1657 #define SD_UPDATE_PARTITION_STATS(un, bp) \ 1658 { \ 1659 struct kstat *pksp = (un)->un_pstats[SDPART((bp)->b_edev)]; \ 1660 if (pksp != NULL) { \ 1661 kstat_io_t *kip = KSTAT_IO_PTR(pksp); \ 1662 size_t n_done = (bp)->b_bcount - (bp)->b_resid; \ 1663 if ((bp)->b_flags & B_READ) { \ 1664 kip->reads++; \ 1665 kip->nread += n_done; \ 1666 } else { \ 1667 kip->writes++; \ 1668 kip->nwritten += n_done; \ 1669 } \ 1670 } \ 1671 } 1672 1673 1674 #endif /* defined(_KERNEL) || defined(_KMEMUSER) */ 1675 1676 1677 /* 1678 * 60 seconds is a *very* reasonable amount of time for most slow CD 1679 * operations. 1680 */ 1681 #define SD_IO_TIME 60 1682 1683 /* 1684 * 2 hours is an excessively reasonable amount of time for format operations. 1685 */ 1686 #define SD_FMT_TIME (120 * 60) 1687 1688 /* 1689 * 5 seconds is what we'll wait if we get a Busy Status back 1690 */ 1691 #define SD_BSY_TIMEOUT (drv_usectohz(5 * 1000000)) 1692 1693 /* 1694 * 100 msec. is what we'll wait if we get Unit Attention. 1695 */ 1696 #define SD_UA_RETRY_DELAY (drv_usectohz((clock_t)100000)) 1697 1698 /* 1699 * 100 msec. is what we'll wait for restarted commands. 1700 */ 1701 #define SD_RESTART_TIMEOUT (drv_usectohz((clock_t)100000)) 1702 1703 /* 1704 * 10s misaligned I/O warning message interval 1705 */ 1706 #define SD_RMW_MSG_PRINT_TIMEOUT (drv_usectohz((clock_t)10000000)) 1707 1708 /* 1709 * 100 msec. is what we'll wait for certain retries for fibre channel 1710 * targets, 0 msec for parallel SCSI. 1711 */ 1712 #if defined(__fibre) 1713 #define SD_RETRY_DELAY (drv_usectohz(100000)) 1714 #else 1715 #define SD_RETRY_DELAY ((clock_t)0) 1716 #endif 1717 1718 /* 1719 * 60 seconds is what we will wait for to reset the 1720 * throttle back to it SD_MAX_THROTTLE. 1721 */ 1722 #define SD_RESET_THROTTLE_TIMEOUT 60 1723 1724 /* 1725 * Number of times we'll retry a normal operation. 1726 * 1727 * This includes retries due to transport failure 1728 * (need to distinguish between Target and Transport failure) 1729 * 1730 */ 1731 #if defined(__fibre) 1732 #define SD_RETRY_COUNT 3 1733 #else 1734 #define SD_RETRY_COUNT 5 1735 #endif 1736 1737 /* 1738 * Number of times we will retry for unit attention. 1739 */ 1740 #define SD_UA_RETRY_COUNT 600 1741 1742 #define SD_VICTIM_RETRY_COUNT(un) (un->un_victim_retry_count) 1743 #define CD_NOT_READY_RETRY_COUNT(un) (un->un_retry_count * 2) 1744 #define DISK_NOT_READY_RETRY_COUNT(un) (un->un_retry_count / 2) 1745 1746 1747 /* 1748 * Maximum number of units we can support 1749 * (controlled by room in minor device byte) 1750 * 1751 * Note: this value is out of date. 1752 */ 1753 #define SD_MAXUNIT 32 1754 1755 /* 1756 * 30 seconds is what we will wait for the IO to finish 1757 * before we fail the DDI_SUSPEND 1758 */ 1759 #define SD_WAIT_CMDS_COMPLETE 30 1760 1761 /* 1762 * Prevent/allow media removal flags 1763 */ 1764 #define SD_REMOVAL_ALLOW 0 1765 #define SD_REMOVAL_PREVENT 1 1766 1767 1768 /* 1769 * Drive Types (and characteristics) 1770 */ 1771 #define VIDMAX 8 1772 #define PIDMAX 16 1773 1774 1775 /* 1776 * The following #defines and type definitions for the property 1777 * processing component of the sd driver. 1778 */ 1779 1780 1781 /* Miscellaneous Definitions */ 1782 #define SD_CONF_VERSION_1 1 1783 #define SD_CONF_NOT_USED 32 1784 1785 /* 1786 * Return values from "pm-capable" property 1787 */ 1788 #define SD_PM_CAPABLE_UNDEFINED -1 1789 #define SD_PM_CAPABLE_FALSE 0 1790 #define SD_PM_CAPABLE_TRUE 1 1791 1792 /* 1793 * Property data values used in static configuration table 1794 * These are all based on device characteristics. 1795 * For fibre channel devices, the throttle value is usually 1796 * derived from the devices cmd Q depth divided by the number 1797 * of supported initiators. 1798 */ 1799 #define ELITE_THROTTLE_VALUE 10 1800 #define SEAGATE_THROTTLE_VALUE 15 1801 #define IBM_THROTTLE_VALUE 15 1802 #define ST31200N_THROTTLE_VALUE 8 1803 #define FUJITSU_THROTTLE_VALUE 15 1804 #define SYMBIOS_THROTTLE_VALUE 16 1805 #define SYMBIOS_NOTREADY_RETRIES 24 1806 #define LSI_THROTTLE_VALUE 16 1807 #define LSI_NOTREADY_RETRIES 24 1808 #define LSI_OEM_NOTREADY_RETRIES 36 1809 #define PURPLE_THROTTLE_VALUE 64 1810 #define PURPLE_BUSY_RETRIES 60 1811 #define PURPLE_RESET_RETRY_COUNT 36 1812 #define PURPLE_RESERVE_RELEASE_TIME 60 1813 #define SVE_BUSY_RETRIES 60 1814 #define SVE_RESET_RETRY_COUNT 36 1815 #define SVE_RESERVE_RELEASE_TIME 60 1816 #define SVE_THROTTLE_VALUE 10 1817 #define SVE_MIN_THROTTLE_VALUE 2 1818 #define SVE_DISKSORT_DISABLED_FLAG 1 1819 #define MASERATI_DISKSORT_DISABLED_FLAG 1 1820 #define MASERATI_LUN_RESET_ENABLED_FLAG 1 1821 #define PIRUS_THROTTLE_VALUE 64 1822 #define PIRUS_NRR_COUNT 60 1823 #define PIRUS_BUSY_RETRIES 60 1824 #define PIRUS_RESET_RETRY_COUNT 36 1825 #define PIRUS_MIN_THROTTLE_VALUE 16 1826 #define PIRUS_DISKSORT_DISABLED_FLAG 0 1827 #define PIRUS_LUN_RESET_ENABLED_FLAG 1 1828 1829 /* 1830 * Driver Property Bit Flag definitions 1831 * 1832 * Unfortunately, for historical reasons, the bit-flag definitions are 1833 * different on SPARC, INTEL, & FIBRE platforms. 1834 */ 1835 1836 /* 1837 * Bit flag telling driver to set throttle from sd.conf sd-config-list 1838 * and driver table. 1839 * 1840 * The max throttle (q-depth) property implementation is for support of 1841 * fibre channel devices that can drop an i/o request when a queue fills 1842 * up. The number of commands sent to the disk from this driver is 1843 * regulated such that queue overflows are avoided. 1844 */ 1845 #define SD_CONF_SET_THROTTLE 0 1846 #define SD_CONF_BSET_THROTTLE (1 << SD_CONF_SET_THROTTLE) 1847 1848 /* 1849 * Bit flag telling driver to set the controller type from sd.conf 1850 * sd-config-list and driver table. 1851 */ 1852 #if defined(__i386) || defined(__amd64) 1853 #define SD_CONF_SET_CTYPE 1 1854 #elif defined(__fibre) 1855 #define SD_CONF_SET_CTYPE 5 1856 #else 1857 #define SD_CONF_SET_CTYPE 1 1858 #endif 1859 #define SD_CONF_BSET_CTYPE (1 << SD_CONF_SET_CTYPE) 1860 1861 /* 1862 * Bit flag telling driver to set the not ready retry count for a device from 1863 * sd.conf sd-config-list and driver table. 1864 */ 1865 #if defined(__i386) || defined(__amd64) 1866 #define SD_CONF_SET_NOTREADY_RETRIES 10 1867 #elif defined(__fibre) 1868 #define SD_CONF_SET_NOTREADY_RETRIES 1 1869 #else 1870 #define SD_CONF_SET_NOTREADY_RETRIES 2 1871 #endif 1872 #define SD_CONF_BSET_NRR_COUNT (1 << SD_CONF_SET_NOTREADY_RETRIES) 1873 1874 /* 1875 * Bit flag telling driver to set SCSI status BUSY Retries from sd.conf 1876 * sd-config-list and driver table. 1877 */ 1878 #if defined(__i386) || defined(__amd64) 1879 #define SD_CONF_SET_BUSY_RETRIES 11 1880 #elif defined(__fibre) 1881 #define SD_CONF_SET_BUSY_RETRIES 2 1882 #else 1883 #define SD_CONF_SET_BUSY_RETRIES 5 1884 #endif 1885 #define SD_CONF_BSET_BSY_RETRY_COUNT (1 << SD_CONF_SET_BUSY_RETRIES) 1886 1887 /* 1888 * Bit flag telling driver that device does not have a valid/unique serial 1889 * number. 1890 */ 1891 #if defined(__i386) || defined(__amd64) 1892 #define SD_CONF_SET_FAB_DEVID 2 1893 #else 1894 #define SD_CONF_SET_FAB_DEVID 3 1895 #endif 1896 #define SD_CONF_BSET_FAB_DEVID (1 << SD_CONF_SET_FAB_DEVID) 1897 1898 /* 1899 * Bit flag telling driver to disable all caching for disk device. 1900 */ 1901 #if defined(__i386) || defined(__amd64) 1902 #define SD_CONF_SET_NOCACHE 3 1903 #else 1904 #define SD_CONF_SET_NOCACHE 4 1905 #endif 1906 #define SD_CONF_BSET_NOCACHE (1 << SD_CONF_SET_NOCACHE) 1907 1908 /* 1909 * Bit flag telling driver that the PLAY AUDIO command requires parms in BCD 1910 * format rather than binary. 1911 */ 1912 #if defined(__i386) || defined(__amd64) 1913 #define SD_CONF_SET_PLAYMSF_BCD 4 1914 #else 1915 #define SD_CONF_SET_PLAYMSF_BCD 6 1916 #endif 1917 #define SD_CONF_BSET_PLAYMSF_BCD (1 << SD_CONF_SET_PLAYMSF_BCD) 1918 1919 /* 1920 * Bit flag telling driver that the response from the READ SUBCHANNEL command 1921 * has BCD fields rather than binary. 1922 */ 1923 #if defined(__i386) || defined(__amd64) 1924 #define SD_CONF_SET_READSUB_BCD 5 1925 #else 1926 #define SD_CONF_SET_READSUB_BCD 7 1927 #endif 1928 #define SD_CONF_BSET_READSUB_BCD (1 << SD_CONF_SET_READSUB_BCD) 1929 1930 /* 1931 * Bit in flags telling driver that the track number fields in the READ TOC 1932 * request and respone are in BCD rather than binary. 1933 */ 1934 #if defined(__i386) || defined(__amd64) 1935 #define SD_CONF_SET_READ_TOC_TRK_BCD 6 1936 #else 1937 #define SD_CONF_SET_READ_TOC_TRK_BCD 8 1938 #endif 1939 #define SD_CONF_BSET_READ_TOC_TRK_BCD (1 << SD_CONF_SET_READ_TOC_TRK_BCD) 1940 1941 /* 1942 * Bit flag telling driver that the address fields in the READ TOC request and 1943 * respone are in BCD rather than binary. 1944 */ 1945 #if defined(__i386) || defined(__amd64) 1946 #define SD_CONF_SET_READ_TOC_ADDR_BCD 7 1947 #else 1948 #define SD_CONF_SET_READ_TOC_ADDR_BCD 9 1949 #endif 1950 #define SD_CONF_BSET_READ_TOC_ADDR_BCD (1 << SD_CONF_SET_READ_TOC_ADDR_BCD) 1951 1952 /* 1953 * Bit flag telling the driver that the device doesn't support the READ HEADER 1954 * command. 1955 */ 1956 #if defined(__i386) || defined(__amd64) 1957 #define SD_CONF_SET_NO_READ_HEADER 8 1958 #else 1959 #define SD_CONF_SET_NO_READ_HEADER 10 1960 #endif 1961 #define SD_CONF_BSET_NO_READ_HEADER (1 << SD_CONF_SET_NO_READ_HEADER) 1962 1963 /* 1964 * Bit flag telling the driver that for the READ CD command the device uses 1965 * opcode 0xd4 rather than 0xbe. 1966 */ 1967 #if defined(__i386) || defined(__amd64) 1968 #define SD_CONF_SET_READ_CD_XD4 9 1969 #else 1970 #define SD_CONF_SET_READ_CD_XD4 11 1971 #endif 1972 #define SD_CONF_BSET_READ_CD_XD4 (1 << SD_CONF_SET_READ_CD_XD4) 1973 1974 /* 1975 * Bit flag telling the driver to set SCSI status Reset Retries 1976 * (un_reset_retry_count) from sd.conf sd-config-list and driver table (4356701) 1977 */ 1978 #define SD_CONF_SET_RST_RETRIES 12 1979 #define SD_CONF_BSET_RST_RETRIES (1 << SD_CONF_SET_RST_RETRIES) 1980 1981 /* 1982 * Bit flag telling the driver to set the reservation release timeout value 1983 * from sd.conf sd-config-list and driver table. (4367306) 1984 */ 1985 #define SD_CONF_SET_RSV_REL_TIME 13 1986 #define SD_CONF_BSET_RSV_REL_TIME (1 << SD_CONF_SET_RSV_REL_TIME) 1987 1988 /* 1989 * Bit flag telling the driver to verify that no commands are pending for a 1990 * device before issuing a Test Unit Ready. This is a fw workaround for Seagate 1991 * eliteI drives. (4392016) 1992 */ 1993 #define SD_CONF_SET_TUR_CHECK 14 1994 #define SD_CONF_BSET_TUR_CHECK (1 << SD_CONF_SET_TUR_CHECK) 1995 1996 /* 1997 * Bit in flags telling driver to set min. throttle from ssd.conf 1998 * ssd-config-list and driver table. 1999 */ 2000 #define SD_CONF_SET_MIN_THROTTLE 15 2001 #define SD_CONF_BSET_MIN_THROTTLE (1 << SD_CONF_SET_MIN_THROTTLE) 2002 2003 /* 2004 * Bit in flags telling driver to set disksort disable flag from ssd.conf 2005 * ssd-config-list and driver table. 2006 */ 2007 #define SD_CONF_SET_DISKSORT_DISABLED 16 2008 #define SD_CONF_BSET_DISKSORT_DISABLED (1 << SD_CONF_SET_DISKSORT_DISABLED) 2009 2010 /* 2011 * Bit in flags telling driver to set LUN Reset enable flag from [s]sd.conf 2012 * [s]sd-config-list and driver table. 2013 */ 2014 #define SD_CONF_SET_LUN_RESET_ENABLED 17 2015 #define SD_CONF_BSET_LUN_RESET_ENABLED (1 << SD_CONF_SET_LUN_RESET_ENABLED) 2016 2017 /* 2018 * Bit in flags telling driver that the write cache on the device is 2019 * non-volatile. 2020 */ 2021 #define SD_CONF_SET_CACHE_IS_NV 18 2022 #define SD_CONF_BSET_CACHE_IS_NV (1 << SD_CONF_SET_CACHE_IS_NV) 2023 2024 /* 2025 * This is the number of items currently settable in the sd.conf 2026 * sd-config-list. The mask value is defined for parameter checking. The 2027 * item count and mask should be updated when new properties are added. 2028 */ 2029 #define SD_CONF_MAX_ITEMS 19 2030 #define SD_CONF_BIT_MASK 0x0007FFFF 2031 2032 typedef struct { 2033 int sdt_throttle; 2034 int sdt_ctype; 2035 int sdt_not_rdy_retries; 2036 int sdt_busy_retries; 2037 int sdt_reset_retries; 2038 int sdt_reserv_rel_time; 2039 int sdt_min_throttle; 2040 int sdt_disk_sort_dis; 2041 int sdt_lun_reset_enable; 2042 int sdt_suppress_cache_flush; 2043 } sd_tunables; 2044 2045 /* Type definition for static configuration table entries */ 2046 typedef struct sd_disk_config { 2047 char device_id[25]; 2048 uint_t flags; 2049 sd_tunables *properties; 2050 } sd_disk_config_t; 2051 2052 /* 2053 * byte 4 options for 1bh command 2054 */ 2055 #define SD_TARGET_STOP 0x00 2056 #define SD_TARGET_START 0x01 2057 #define SD_TARGET_EJECT 0x02 2058 #define SD_TARGET_CLOSE 0x03 2059 2060 2061 #define SD_MODE_SENSE_PAGE3_CODE 0x03 2062 #define SD_MODE_SENSE_PAGE4_CODE 0x04 2063 2064 #define SD_MODE_SENSE_PAGE3_LENGTH \ 2065 (sizeof (struct mode_format) + MODE_PARAM_LENGTH) 2066 #define SD_MODE_SENSE_PAGE4_LENGTH \ 2067 (sizeof (struct mode_geometry) + MODE_PARAM_LENGTH) 2068 2069 /* 2070 * These command codes need to be moved to sys/scsi/generic/commands.h 2071 */ 2072 2073 /* Both versions of the Read CD command */ 2074 2075 /* the official SCMD_READ_CD now comes from cdio.h */ 2076 #define SCMD_READ_CDD4 0xd4 /* the one used by some first */ 2077 /* generation ATAPI CD drives */ 2078 2079 /* expected sector type filter values for Play and Read CD CDBs */ 2080 #define CDROM_SECTOR_TYPE_CDDA (1<<2) /* IEC 908:1987 (CDDA) */ 2081 #define CDROM_SECTOR_TYPE_MODE1 (2<<2) /* Yellow book 2048 bytes */ 2082 #define CDROM_SECTOR_TYPE_MODE2 (3<<2) /* Yellow book 2335 bytes */ 2083 #define CDROM_SECTOR_TYPE_MODE2_FORM1 (4<<2) /* 2048 bytes */ 2084 #define CDROM_SECTOR_TYPE_MODE2_FORM2 (5<<2) /* 2324 bytes */ 2085 2086 /* READ CD filter bits (cdb[9]) */ 2087 #define CDROM_READ_CD_SYNC 0x80 /* read sync field */ 2088 #define CDROM_READ_CD_HDR 0x20 /* read four byte header */ 2089 #define CDROM_READ_CD_SUBHDR 0x40 /* read sub-header */ 2090 #define CDROM_READ_CD_ALLHDRS 0x60 /* read header and sub-header */ 2091 #define CDROM_READ_CD_USERDATA 0x10 /* read user data */ 2092 #define CDROM_READ_CD_EDC_ECC 0x08 /* read EDC and ECC field */ 2093 #define CDROM_READ_CD_C2 0x02 /* read C2 error data */ 2094 #define CDROM_READ_CD_C2_BEB 0x04 /* read C2 and Block Error Bits */ 2095 2096 2097 /* 2098 * These belong in sys/scsi/generic/mode.h 2099 */ 2100 2101 /* 2102 * Mode Sense/Select Header response for Group 2 CDB. 2103 */ 2104 2105 struct mode_header_grp2 { 2106 uchar_t length_msb; /* MSB - number of bytes following */ 2107 uchar_t length_lsb; 2108 uchar_t medium_type; /* device specific */ 2109 uchar_t device_specific; /* device specfic parameters */ 2110 uchar_t resv[2]; /* reserved */ 2111 uchar_t bdesc_length_hi; /* length of block descriptor(s) */ 2112 /* (if any) */ 2113 uchar_t bdesc_length_lo; 2114 }; 2115 2116 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", mode_header_grp2)) 2117 2118 /* 2119 * Length of the Mode Parameter Header for the Group 2 Mode Select command 2120 */ 2121 #define MODE_HEADER_LENGTH_GRP2 (sizeof (struct mode_header_grp2)) 2122 #define MODE_PARAM_LENGTH_GRP2 (MODE_HEADER_LENGTH_GRP2 + MODE_BLK_DESC_LENGTH) 2123 2124 /* 2125 * Mode Page 1 - Error Recovery Page 2126 */ 2127 #define MODEPAGE_ERR_RECOVER 1 2128 2129 /* 2130 * The following buffer length define is 8 bytes for the Group 2 mode page 2131 * header, 8 bytes for the block descriptor and 26 bytes for the cdrom 2132 * capabilities page (per MMC-2) 2133 */ 2134 #define MODEPAGE_CDROM_CAP 0x2A 2135 #define MODEPAGE_CDROM_CAP_LEN 26 2136 #define BUFLEN_MODE_CDROM_CAP (MODEPAGE_CDROM_CAP_LEN + \ 2137 MODE_HEADER_LENGTH_GRP2 + MODE_BLK_DESC_LENGTH) 2138 2139 2140 /* 2141 * Power management defines 2142 */ 2143 #define SD_SPINDLE_UNINIT (-1) 2144 #define SD_SPINDLE_OFF 0 2145 #define SD_SPINDLE_ON 1 2146 #define SD_PM_NOT_SUPPORTED 2 2147 2148 2149 /* 2150 * No Need to resume if already in PM_SUSPEND state because the thread 2151 * was suspended in sdpower. It will be resumed when sdpower is invoked to make 2152 * the device active. 2153 * When the thread is suspended, the watch thread is terminated and 2154 * the token is NULLed so check for this condition. 2155 * If there's a thread that can be resumed, ie. token is not NULL, then 2156 * it can be resumed. 2157 */ 2158 #define SD_OK_TO_RESUME_SCSI_WATCHER(un) (un->un_swr_token != NULL) 2159 /* 2160 * No Need to resume if already in PM_SUSPEND state because the thread 2161 * was suspended in sdpower. It will be resumed when sdpower is invoked to make 2162 * the device active. 2163 * When the thread is suspended, the watch thread is terminated and 2164 * the token is NULLed so check for this condition. 2165 */ 2166 #define SD_OK_TO_SUSPEND_SCSI_WATCHER(un) (un->un_swr_token != NULL) 2167 #define SD_DEVICE_IS_IN_LOW_POWER(un) ((un->un_f_pm_is_enabled) && \ 2168 (un->un_pm_count < 0)) 2169 /* 2170 * Could move this define to some thing like log sense.h in SCSA headers 2171 * But for now let it live here. 2172 */ 2173 #define START_STOP_CYCLE_COUNTER_PAGE_SIZE 0x28 2174 #define START_STOP_CYCLE_PAGE 0x0E 2175 #define START_STOP_CYCLE_VU_PAGE 0x31 2176 2177 /* CD-ROM Error Recovery Parameters page (0x01) */ 2178 #define MODEPAGE_ERR_RECOV 0x1 2179 #define BUFLEN_CHG_BLK_MODE MODE_HEADER_LENGTH + MODE_BLK_DESC_LENGTH 2180 2181 /* 2182 * Vendor Specific (Toshiba) CD-ROM Speed page (0x31) 2183 * 2184 * The following buffer length define is 4 bytes for the Group 0 mode page 2185 * header, 8 bytes for the block descriptor and 4 bytes for the mode speed page. 2186 */ 2187 #define MODEPAGE_CDROM_SPEED_LEN 4 2188 #define BUFLEN_MODE_CDROM_SPEED MODEPAGE_CDROM_SPEED_LEN +\ 2189 MODE_HEADER_LENGTH +\ 2190 MODE_BLK_DESC_LENGTH 2191 #define SD_SPEED_1X 176 2192 2193 /* CD-ROM Audio Control Parameters page (0x0E) */ 2194 #define MODEPAGE_AUDIO_CTRL 0x0E 2195 #define MODEPAGE_AUDIO_CTRL_LEN 16 2196 2197 /* CD-ROM Sony Read Offset Defines */ 2198 #define SONY_SESSION_OFFSET_LEN 12 2199 #define SONY_SESSION_OFFSET_KEY 0x40 2200 #define SONY_SESSION_OFFSET_VALID 0x0a 2201 2202 /* 2203 * CD-ROM Write Protect Defines 2204 * 2205 * Bit 7 of the device specific field of the mode page header is the write 2206 * protect bit. 2207 */ 2208 #define WRITE_PROTECT 0x80 2209 2210 /* 2211 * Define for the length of a profile header returned in response to the 2212 * GET CONFIGURATION command 2213 */ 2214 #define SD_PROFILE_HEADER_LEN 8 /* bytes */ 2215 2216 /* 2217 * Define the length of the data in response to the GET CONFIGURATION 2218 * command. The 3rd byte of the feature descriptor contains the 2219 * current feature field that is of interest. This field begins 2220 * after the feature header which is 8 bytes. This variable length 2221 * was increased in size from 11 to 24 because some devices became 2222 * unresponsive with the smaller size. 2223 */ 2224 #define SD_CURRENT_FEATURE_LEN 24 /* bytes */ 2225 2226 /* 2227 * Feature codes associated with GET CONFIGURATION command for supported 2228 * devices. 2229 */ 2230 #define RANDOM_WRITABLE 0x20 2231 #define HARDWARE_DEFECT_MANAGEMENT 0x24 2232 2233 /* 2234 * Could move this define to some thing like log sense.h in SCSA headers 2235 * But for now let it live here. 2236 */ 2237 #define TEMPERATURE_PAGE 0x0D 2238 #define TEMPERATURE_PAGE_SIZE 16 /* bytes */ 2239 2240 /* delay time used for sd_media_watch_cb delayed cv broadcast */ 2241 #define MEDIA_ACCESS_DELAY 2000000 2242 2243 2244 /* SCSI power on or bus device reset additional sense code */ 2245 #define SD_SCSI_RESET_SENSE_CODE 0x29 2246 2247 /* 2248 * These defines are for the Vital Product Data Pages in the inquiry command. 2249 * They are the bits in the un_vpd_page mask, telling the supported pages. 2250 */ 2251 #define SD_VPD_SUPPORTED_PG 0x01 /* 0x00 - Supported VPD pages */ 2252 #define SD_VPD_UNIT_SERIAL_PG 0x02 /* 0x80 - Unit Serial Number */ 2253 #define SD_VPD_OPERATING_PG 0x04 /* 0x81 - Implemented Op Defs */ 2254 #define SD_VPD_ASCII_OP_PG 0x08 /* 0x82 - ASCII Op Defs */ 2255 #define SD_VPD_DEVID_WWN_PG 0x10 /* 0x83 - Device Identification */ 2256 #define SD_VPD_EXTENDED_DATA_PG 0x80 /* 0x86 - Extended data about the lun */ 2257 2258 /* 2259 * Non-volatile cache support 2260 * 2261 * Bit 1 of the byte 6 in the Extended INQUIRY data VPD page 2262 * is NV_SUP bit: An NV_SUP bit set to one indicates that 2263 * the device server supports a non-volatile cache. An 2264 * NV_SUP bit set to zero indicates that the device 2265 * server may or may not support a non-volatile cache. 2266 * 2267 * Bit 2 of the byte 1 in the SYNC CACHE command is SYNC_NV 2268 * bit: The SYNC_NV bit specifies whether the device server 2269 * is required to synchronize volatile and non-volatile 2270 * caches. 2271 */ 2272 #define SD_VPD_NV_SUP 0x02 2273 #define SD_SYNC_NV_BIT 0x04 2274 2275 /* 2276 * Addition from sddef.intel.h 2277 */ 2278 #if defined(__i386) || defined(__amd64) 2279 2280 #define P0_RAW_DISK (NDKMAP) 2281 #define FDISK_P1 (NDKMAP+1) 2282 #define FDISK_P2 (NDKMAP+2) 2283 #define FDISK_P3 (NDKMAP+3) 2284 #define FDISK_P4 (NDKMAP+4) 2285 2286 #endif /* __i386 || __amd64 */ 2287 2288 #ifdef __cplusplus 2289 } 2290 #endif 2291 2292 2293 #endif /* _SYS_SCSI_TARGETS_SDDEF_H */ 2294