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