scsi_xpt.c revision 350804
1/*- 2 * Implementation of the SCSI Transport 3 * 4 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 5 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/11/sys/cam/scsi/scsi_xpt.c 350804 2019-08-08 22:16:19Z mav $"); 32 33#include <sys/param.h> 34#include <sys/bus.h> 35#include <sys/systm.h> 36#include <sys/types.h> 37#include <sys/malloc.h> 38#include <sys/kernel.h> 39#include <sys/time.h> 40#include <sys/conf.h> 41#include <sys/fcntl.h> 42#include <sys/md5.h> 43#include <sys/sbuf.h> 44 45#include <sys/lock.h> 46#include <sys/mutex.h> 47#include <sys/sysctl.h> 48 49#include <cam/cam.h> 50#include <cam/cam_ccb.h> 51#include <cam/cam_queue.h> 52#include <cam/cam_periph.h> 53#include <cam/cam_sim.h> 54#include <cam/cam_xpt.h> 55#include <cam/cam_xpt_sim.h> 56#include <cam/cam_xpt_periph.h> 57#include <cam/cam_xpt_internal.h> 58#include <cam/cam_debug.h> 59 60#include <cam/scsi/scsi_all.h> 61#include <cam/scsi/scsi_message.h> 62#include <cam/scsi/scsi_pass.h> 63#include <machine/stdarg.h> /* for xpt_print below */ 64#include "opt_cam.h" 65 66struct scsi_quirk_entry { 67 struct scsi_inquiry_pattern inq_pat; 68 u_int8_t quirks; 69#define CAM_QUIRK_NOLUNS 0x01 70#define CAM_QUIRK_NOVPDS 0x02 71#define CAM_QUIRK_HILUNS 0x04 72#define CAM_QUIRK_NOHILUNS 0x08 73#define CAM_QUIRK_NORPTLUNS 0x10 74 u_int mintags; 75 u_int maxtags; 76}; 77#define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 78 79static int cam_srch_hi = 0; 80static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 81SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT | CTLFLAG_RWTUN, 0, 0, 82 sysctl_cam_search_luns, "I", 83 "allow search above LUN 7 for SCSI3 and greater devices"); 84 85#define CAM_SCSI2_MAXLUN 8 86#define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 87 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 88 RPL_LUNDATA_ATYP_PERIPH) || \ 89 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_FLAT)) 91#define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 92 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 93 RPL_LUNDATA_ATYP_PERIPH) { \ 94 (lval) = (lp)->luns[(i)].lundata[1]; \ 95 } else { \ 96 (lval) = (lp)->luns[(i)].lundata[0]; \ 97 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 98 (lval) <<= 8; \ 99 (lval) |= (lp)->luns[(i)].lundata[1]; \ 100 } 101#define CAM_GET_LUN(lp, i, lval) \ 102 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 103 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 104 105/* 106 * If we're not quirked to search <= the first 8 luns 107 * and we are either quirked to search above lun 8, 108 * or we're > SCSI-2 and we've enabled hilun searching, 109 * or we're > SCSI-2 and the last lun was a success, 110 * we can look for luns above lun 8. 111 */ 112#define CAN_SRCH_HI_SPARSE(dv) \ 113 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 114 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 115 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 116 117#define CAN_SRCH_HI_DENSE(dv) \ 118 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 119 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 120 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 121 122static periph_init_t probe_periph_init; 123 124static struct periph_driver probe_driver = 125{ 126 probe_periph_init, "probe", 127 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 128 CAM_PERIPH_DRV_EARLY 129}; 130 131PERIPHDRIVER_DECLARE(probe, probe_driver); 132 133typedef enum { 134 PROBE_TUR, 135 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 136 PROBE_FULL_INQUIRY, 137 PROBE_REPORT_LUNS, 138 PROBE_MODE_SENSE, 139 PROBE_SUPPORTED_VPD_LIST, 140 PROBE_DEVICE_ID, 141 PROBE_EXTENDED_INQUIRY, 142 PROBE_SERIAL_NUM, 143 PROBE_TUR_FOR_NEGOTIATION, 144 PROBE_INQUIRY_BASIC_DV1, 145 PROBE_INQUIRY_BASIC_DV2, 146 PROBE_DV_EXIT, 147 PROBE_DONE, 148 PROBE_INVALID 149} probe_action; 150 151static char *probe_action_text[] = { 152 "PROBE_TUR", 153 "PROBE_INQUIRY", 154 "PROBE_FULL_INQUIRY", 155 "PROBE_REPORT_LUNS", 156 "PROBE_MODE_SENSE", 157 "PROBE_SUPPORTED_VPD_LIST", 158 "PROBE_DEVICE_ID", 159 "PROBE_EXTENDED_INQUIRY", 160 "PROBE_SERIAL_NUM", 161 "PROBE_TUR_FOR_NEGOTIATION", 162 "PROBE_INQUIRY_BASIC_DV1", 163 "PROBE_INQUIRY_BASIC_DV2", 164 "PROBE_DV_EXIT", 165 "PROBE_DONE", 166 "PROBE_INVALID" 167}; 168 169#define PROBE_SET_ACTION(softc, newaction) \ 170do { \ 171 char **text; \ 172 text = probe_action_text; \ 173 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 174 ("Probe %s to %s\n", text[(softc)->action], \ 175 text[(newaction)])); \ 176 (softc)->action = (newaction); \ 177} while(0) 178 179typedef enum { 180 PROBE_INQUIRY_CKSUM = 0x01, 181 PROBE_SERIAL_CKSUM = 0x02, 182 PROBE_NO_ANNOUNCE = 0x04, 183 PROBE_EXTLUN = 0x08 184} probe_flags; 185 186typedef struct { 187 TAILQ_HEAD(, ccb_hdr) request_ccbs; 188 probe_action action; 189 union ccb saved_ccb; 190 probe_flags flags; 191 MD5_CTX context; 192 u_int8_t digest[16]; 193 struct cam_periph *periph; 194} probe_softc; 195 196static const char quantum[] = "QUANTUM"; 197static const char sony[] = "SONY"; 198static const char west_digital[] = "WDIGTL"; 199static const char samsung[] = "SAMSUNG"; 200static const char seagate[] = "SEAGATE"; 201static const char microp[] = "MICROP"; 202 203static struct scsi_quirk_entry scsi_quirk_table[] = 204{ 205 { 206 /* Reports QUEUE FULL for temporary resource shortages */ 207 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 208 /*quirks*/0, /*mintags*/24, /*maxtags*/32 209 }, 210 { 211 /* Reports QUEUE FULL for temporary resource shortages */ 212 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 213 /*quirks*/0, /*mintags*/24, /*maxtags*/32 214 }, 215 { 216 /* Reports QUEUE FULL for temporary resource shortages */ 217 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 218 /*quirks*/0, /*mintags*/24, /*maxtags*/32 219 }, 220 { 221 /* Broken tagged queuing drive */ 222 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 223 /*quirks*/0, /*mintags*/0, /*maxtags*/0 224 }, 225 { 226 /* Broken tagged queuing drive */ 227 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 228 /*quirks*/0, /*mintags*/0, /*maxtags*/0 229 }, 230 { 231 /* Broken tagged queuing drive */ 232 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 233 /*quirks*/0, /*mintags*/0, /*maxtags*/0 234 }, 235 { 236 /* 237 * Unfortunately, the Quantum Atlas III has the same 238 * problem as the Atlas II drives above. 239 * Reported by: "Johan Granlund" <johan@granlund.nu> 240 * 241 * For future reference, the drive with the problem was: 242 * QUANTUM QM39100TD-SW N1B0 243 * 244 * It's possible that Quantum will fix the problem in later 245 * firmware revisions. If that happens, the quirk entry 246 * will need to be made specific to the firmware revisions 247 * with the problem. 248 * 249 */ 250 /* Reports QUEUE FULL for temporary resource shortages */ 251 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 252 /*quirks*/0, /*mintags*/24, /*maxtags*/32 253 }, 254 { 255 /* 256 * 18 Gig Atlas III, same problem as the 9G version. 257 * Reported by: Andre Albsmeier 258 * <andre.albsmeier@mchp.siemens.de> 259 * 260 * For future reference, the drive with the problem was: 261 * QUANTUM QM318000TD-S N491 262 */ 263 /* Reports QUEUE FULL for temporary resource shortages */ 264 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 265 /*quirks*/0, /*mintags*/24, /*maxtags*/32 266 }, 267 { 268 /* 269 * Broken tagged queuing drive 270 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 271 * and: Martin Renters <martin@tdc.on.ca> 272 */ 273 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 274 /*quirks*/0, /*mintags*/0, /*maxtags*/0 275 }, 276 /* 277 * The Seagate Medalist Pro drives have very poor write 278 * performance with anything more than 2 tags. 279 * 280 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 281 * Drive: <SEAGATE ST36530N 1444> 282 * 283 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 284 * Drive: <SEAGATE ST34520W 1281> 285 * 286 * No one has actually reported that the 9G version 287 * (ST39140*) of the Medalist Pro has the same problem, but 288 * we're assuming that it does because the 4G and 6.5G 289 * versions of the drive are broken. 290 */ 291 { 292 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 293 /*quirks*/0, /*mintags*/2, /*maxtags*/2 294 }, 295 { 296 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 297 /*quirks*/0, /*mintags*/2, /*maxtags*/2 298 }, 299 { 300 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 301 /*quirks*/0, /*mintags*/2, /*maxtags*/2 302 }, 303 { 304 /* 305 * Experiences command timeouts under load with a 306 * tag count higher than 55. 307 */ 308 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 309 /*quirks*/0, /*mintags*/2, /*maxtags*/55 310 }, 311 { 312 /* 313 * Slow when tagged queueing is enabled. Write performance 314 * steadily drops off with more and more concurrent 315 * transactions. Best sequential write performance with 316 * tagged queueing turned off and write caching turned on. 317 * 318 * PR: kern/10398 319 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 320 * Drive: DCAS-34330 w/ "S65A" firmware. 321 * 322 * The drive with the problem had the "S65A" firmware 323 * revision, and has also been reported (by Stephen J. 324 * Roznowski <sjr@home.net>) for a drive with the "S61A" 325 * firmware revision. 326 * 327 * Although no one has reported problems with the 2 gig 328 * version of the DCAS drive, the assumption is that it 329 * has the same problems as the 4 gig version. Therefore 330 * this quirk entries disables tagged queueing for all 331 * DCAS drives. 332 */ 333 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 334 /*quirks*/0, /*mintags*/0, /*maxtags*/0 335 }, 336 { 337 /* Broken tagged queuing drive */ 338 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 339 /*quirks*/0, /*mintags*/0, /*maxtags*/0 340 }, 341 { 342 /* Broken tagged queuing drive */ 343 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 344 /*quirks*/0, /*mintags*/0, /*maxtags*/0 345 }, 346 { 347 /* This does not support other than LUN 0 */ 348 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 349 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 350 }, 351 { 352 /* 353 * Broken tagged queuing drive. 354 * Submitted by: 355 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 356 * in PR kern/9535 357 */ 358 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 359 /*quirks*/0, /*mintags*/0, /*maxtags*/0 360 }, 361 { 362 /* 363 * Slow when tagged queueing is enabled. (1.5MB/sec versus 364 * 8MB/sec.) 365 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 366 * Best performance with these drives is achieved with 367 * tagged queueing turned off, and write caching turned on. 368 */ 369 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 370 /*quirks*/0, /*mintags*/0, /*maxtags*/0 371 }, 372 { 373 /* 374 * Slow when tagged queueing is enabled. (1.5MB/sec versus 375 * 8MB/sec.) 376 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 377 * Best performance with these drives is achieved with 378 * tagged queueing turned off, and write caching turned on. 379 */ 380 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 381 /*quirks*/0, /*mintags*/0, /*maxtags*/0 382 }, 383 { 384 /* 385 * Doesn't handle queue full condition correctly, 386 * so we need to limit maxtags to what the device 387 * can handle instead of determining this automatically. 388 */ 389 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 390 /*quirks*/0, /*mintags*/2, /*maxtags*/32 391 }, 392 { 393 /* Really only one LUN */ 394 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 395 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 396 }, 397 { 398 /* I can't believe we need a quirk for DPT volumes. */ 399 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 400 CAM_QUIRK_NOLUNS, 401 /*mintags*/0, /*maxtags*/255 402 }, 403 { 404 /* 405 * Many Sony CDROM drives don't like multi-LUN probing. 406 */ 407 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 408 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 409 }, 410 { 411 /* 412 * This drive doesn't like multiple LUN probing. 413 * Submitted by: Parag Patel <parag@cgt.com> 414 */ 415 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 416 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 417 }, 418 { 419 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 420 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 421 }, 422 { 423 /* 424 * The 8200 doesn't like multi-lun probing, and probably 425 * don't like serial number requests either. 426 */ 427 { 428 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 429 "EXB-8200*", "*" 430 }, 431 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 432 }, 433 { 434 /* 435 * Let's try the same as above, but for a drive that says 436 * it's an IPL-6860 but is actually an EXB 8200. 437 */ 438 { 439 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 440 "IPL-6860*", "*" 441 }, 442 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 443 }, 444 { 445 /* 446 * These Hitachi drives don't like multi-lun probing. 447 * The PR submitter has a DK319H, but says that the Linux 448 * kernel has a similar work-around for the DK312 and DK314, 449 * so all DK31* drives are quirked here. 450 * PR: misc/18793 451 * Submitted by: Paul Haddad <paul@pth.com> 452 */ 453 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 454 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 455 }, 456 { 457 /* 458 * The Hitachi CJ series with J8A8 firmware apparently has 459 * problems with tagged commands. 460 * PR: 23536 461 * Reported by: amagai@nue.org 462 */ 463 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 464 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 465 }, 466 { 467 /* 468 * These are the large storage arrays. 469 * Submitted by: William Carrel <william.carrel@infospace.com> 470 */ 471 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 472 CAM_QUIRK_HILUNS, 2, 1024 473 }, 474 { 475 /* 476 * This old revision of the TDC3600 is also SCSI-1, and 477 * hangs upon serial number probing. 478 */ 479 { 480 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 481 " TDC 3600", "U07:" 482 }, 483 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 484 }, 485 { 486 /* 487 * Would repond to all LUNs if asked for. 488 */ 489 { 490 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 491 "CP150", "*" 492 }, 493 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 494 }, 495 { 496 /* 497 * Would repond to all LUNs if asked for. 498 */ 499 { 500 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 501 "96X2*", "*" 502 }, 503 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 504 }, 505 { 506 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 507 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 508 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 509 }, 510 { 511 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 512 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 513 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 514 }, 515 { 516 /* TeraSolutions special settings for TRC-22 RAID */ 517 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 518 /*quirks*/0, /*mintags*/55, /*maxtags*/255 519 }, 520 { 521 /* Veritas Storage Appliance */ 522 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 523 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 524 }, 525 { 526 /* 527 * Would respond to all LUNs. Device type and removable 528 * flag are jumper-selectable. 529 */ 530 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 531 "Tahiti 1", "*" 532 }, 533 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 534 }, 535 { 536 /* EasyRAID E5A aka. areca ARC-6010 */ 537 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 538 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 539 }, 540 { 541 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 542 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 543 }, 544 { 545 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 546 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 547 }, 548 { 549 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 550 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 551 }, 552 { 553 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 554 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 555 }, 556 { 557 /* Default tagged queuing parameters for all devices */ 558 { 559 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 560 /*vendor*/"*", /*product*/"*", /*revision*/"*" 561 }, 562 /*quirks*/0, /*mintags*/2, /*maxtags*/255 563 }, 564}; 565 566static cam_status proberegister(struct cam_periph *periph, 567 void *arg); 568static void probeschedule(struct cam_periph *probe_periph); 569static void probestart(struct cam_periph *periph, union ccb *start_ccb); 570static void proberequestdefaultnegotiation(struct cam_periph *periph); 571static int proberequestbackoff(struct cam_periph *periph, 572 struct cam_ed *device); 573static void probedone(struct cam_periph *periph, union ccb *done_ccb); 574static void probe_purge_old(struct cam_path *path, 575 struct scsi_report_luns_data *new, 576 probe_flags flags); 577static void probecleanup(struct cam_periph *periph); 578static void scsi_find_quirk(struct cam_ed *device); 579static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 580static void scsi_scan_lun(struct cam_periph *periph, 581 struct cam_path *path, cam_flags flags, 582 union ccb *ccb); 583static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 584static struct cam_ed * 585 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 586 lun_id_t lun_id); 587static void scsi_devise_transport(struct cam_path *path); 588static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 589 struct cam_path *path, 590 int async_update); 591static void scsi_toggle_tags(struct cam_path *path); 592static void scsi_dev_async(u_int32_t async_code, 593 struct cam_eb *bus, 594 struct cam_et *target, 595 struct cam_ed *device, 596 void *async_arg); 597static void scsi_action(union ccb *start_ccb); 598static void scsi_announce_periph(struct cam_periph *periph); 599static void scsi_proto_announce(struct cam_ed *device); 600static void scsi_proto_denounce(struct cam_ed *device); 601static void scsi_proto_debug_out(union ccb *ccb); 602 603static struct xpt_xport_ops scsi_xport_ops = { 604 .alloc_device = scsi_alloc_device, 605 .action = scsi_action, 606 .async = scsi_dev_async, 607 .announce = scsi_announce_periph, 608}; 609#define SCSI_XPT_XPORT(x, X) \ 610static struct xpt_xport scsi_xport_ ## x = { \ 611 .xport = XPORT_ ## X, \ 612 .name = #x, \ 613 .ops = &scsi_xport_ops, \ 614}; \ 615CAM_XPT_XPORT(scsi_xport_ ## x); 616 617SCSI_XPT_XPORT(spi, SPI); 618SCSI_XPT_XPORT(sas, SAS); 619SCSI_XPT_XPORT(fc, FC); 620SCSI_XPT_XPORT(usb, USB); 621SCSI_XPT_XPORT(iscsi, ISCSI); 622SCSI_XPT_XPORT(srp, SRP); 623SCSI_XPT_XPORT(ppb, PPB); 624 625#undef SCSI_XPORT_XPORT 626 627static struct xpt_proto_ops scsi_proto_ops = { 628 .announce = scsi_proto_announce, 629 .denounce = scsi_proto_denounce, 630 .debug_out = scsi_proto_debug_out, 631}; 632static struct xpt_proto scsi_proto = { 633 .proto = PROTO_SCSI, 634 .name = "scsi", 635 .ops = &scsi_proto_ops, 636}; 637CAM_XPT_PROTO(scsi_proto); 638 639static void 640probe_periph_init() 641{ 642} 643 644static cam_status 645proberegister(struct cam_periph *periph, void *arg) 646{ 647 union ccb *request_ccb; /* CCB representing the probe request */ 648 cam_status status; 649 probe_softc *softc; 650 651 request_ccb = (union ccb *)arg; 652 if (request_ccb == NULL) { 653 printf("proberegister: no probe CCB, " 654 "can't register device\n"); 655 return(CAM_REQ_CMP_ERR); 656 } 657 658 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 659 660 if (softc == NULL) { 661 printf("proberegister: Unable to probe new device. " 662 "Unable to allocate softc\n"); 663 return(CAM_REQ_CMP_ERR); 664 } 665 TAILQ_INIT(&softc->request_ccbs); 666 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 667 periph_links.tqe); 668 softc->flags = 0; 669 periph->softc = softc; 670 softc->periph = periph; 671 softc->action = PROBE_INVALID; 672 status = cam_periph_acquire(periph); 673 if (status != CAM_REQ_CMP) { 674 return (status); 675 } 676 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 677 scsi_devise_transport(periph->path); 678 679 /* 680 * Ensure we've waited at least a bus settle 681 * delay before attempting to probe the device. 682 * For HBAs that don't do bus resets, this won't make a difference. 683 */ 684 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 685 scsi_delay); 686 probeschedule(periph); 687 return(CAM_REQ_CMP); 688} 689 690static void 691probeschedule(struct cam_periph *periph) 692{ 693 struct ccb_pathinq cpi; 694 union ccb *ccb; 695 probe_softc *softc; 696 697 softc = (probe_softc *)periph->softc; 698 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 699 700 xpt_path_inq(&cpi, periph->path); 701 702 /* 703 * If a device has gone away and another device, or the same one, 704 * is back in the same place, it should have a unit attention 705 * condition pending. It will not report the unit attention in 706 * response to an inquiry, which may leave invalid transfer 707 * negotiations in effect. The TUR will reveal the unit attention 708 * condition. Only send the TUR for lun 0, since some devices 709 * will get confused by commands other than inquiry to non-existent 710 * luns. If you think a device has gone away start your scan from 711 * lun 0. This will insure that any bogus transfer settings are 712 * invalidated. 713 * 714 * If we haven't seen the device before and the controller supports 715 * some kind of transfer negotiation, negotiate with the first 716 * sent command if no bus reset was performed at startup. This 717 * ensures that the device is not confused by transfer negotiation 718 * settings left over by loader or BIOS action. 719 */ 720 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 721 && (ccb->ccb_h.target_lun == 0)) { 722 PROBE_SET_ACTION(softc, PROBE_TUR); 723 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 724 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 725 proberequestdefaultnegotiation(periph); 726 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 727 } else { 728 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 729 } 730 731 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 732 softc->flags |= PROBE_NO_ANNOUNCE; 733 else 734 softc->flags &= ~PROBE_NO_ANNOUNCE; 735 736 if (cpi.hba_misc & PIM_EXTLUNS) 737 softc->flags |= PROBE_EXTLUN; 738 else 739 softc->flags &= ~PROBE_EXTLUN; 740 741 xpt_schedule(periph, CAM_PRIORITY_XPT); 742} 743 744static void 745probestart(struct cam_periph *periph, union ccb *start_ccb) 746{ 747 /* Probe the device that our peripheral driver points to */ 748 struct ccb_scsiio *csio; 749 probe_softc *softc; 750 751 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 752 753 softc = (probe_softc *)periph->softc; 754 csio = &start_ccb->csio; 755again: 756 757 switch (softc->action) { 758 case PROBE_TUR: 759 case PROBE_TUR_FOR_NEGOTIATION: 760 case PROBE_DV_EXIT: 761 { 762 scsi_test_unit_ready(csio, 763 /*retries*/4, 764 probedone, 765 MSG_SIMPLE_Q_TAG, 766 SSD_FULL_SIZE, 767 /*timeout*/60000); 768 break; 769 } 770 case PROBE_INQUIRY: 771 case PROBE_FULL_INQUIRY: 772 case PROBE_INQUIRY_BASIC_DV1: 773 case PROBE_INQUIRY_BASIC_DV2: 774 { 775 u_int inquiry_len; 776 struct scsi_inquiry_data *inq_buf; 777 778 inq_buf = &periph->path->device->inq_data; 779 780 /* 781 * If the device is currently configured, we calculate an 782 * MD5 checksum of the inquiry data, and if the serial number 783 * length is greater than 0, add the serial number data 784 * into the checksum as well. Once the inquiry and the 785 * serial number check finish, we attempt to figure out 786 * whether we still have the same device. 787 */ 788 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 789 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 790 791 MD5Init(&softc->context); 792 MD5Update(&softc->context, (unsigned char *)inq_buf, 793 sizeof(struct scsi_inquiry_data)); 794 softc->flags |= PROBE_INQUIRY_CKSUM; 795 if (periph->path->device->serial_num_len > 0) { 796 MD5Update(&softc->context, 797 periph->path->device->serial_num, 798 periph->path->device->serial_num_len); 799 softc->flags |= PROBE_SERIAL_CKSUM; 800 } 801 MD5Final(softc->digest, &softc->context); 802 } 803 804 if (softc->action == PROBE_INQUIRY) 805 inquiry_len = SHORT_INQUIRY_LENGTH; 806 else 807 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 808 809 /* 810 * Some parallel SCSI devices fail to send an 811 * ignore wide residue message when dealing with 812 * odd length inquiry requests. Round up to be 813 * safe. 814 */ 815 inquiry_len = roundup2(inquiry_len, 2); 816 817 if (softc->action == PROBE_INQUIRY_BASIC_DV1 818 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 819 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 820 } 821 if (inq_buf == NULL) { 822 xpt_print(periph->path, "malloc failure- skipping Basic" 823 "Domain Validation\n"); 824 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 825 scsi_test_unit_ready(csio, 826 /*retries*/4, 827 probedone, 828 MSG_SIMPLE_Q_TAG, 829 SSD_FULL_SIZE, 830 /*timeout*/60000); 831 break; 832 } 833 scsi_inquiry(csio, 834 /*retries*/4, 835 probedone, 836 MSG_SIMPLE_Q_TAG, 837 (u_int8_t *)inq_buf, 838 inquiry_len, 839 /*evpd*/FALSE, 840 /*page_code*/0, 841 SSD_MIN_SIZE, 842 /*timeout*/60 * 1000); 843 break; 844 } 845 case PROBE_REPORT_LUNS: 846 { 847 void *rp; 848 849 rp = malloc(periph->path->target->rpl_size, 850 M_CAMXPT, M_NOWAIT | M_ZERO); 851 if (rp == NULL) { 852 struct scsi_inquiry_data *inq_buf; 853 inq_buf = &periph->path->device->inq_data; 854 xpt_print(periph->path, 855 "Unable to alloc report luns storage\n"); 856 if (INQ_DATA_TQ_ENABLED(inq_buf)) 857 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 858 else 859 PROBE_SET_ACTION(softc, 860 PROBE_SUPPORTED_VPD_LIST); 861 goto again; 862 } 863 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 864 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 865 SSD_FULL_SIZE, 60000); break; 866 break; 867 } 868 case PROBE_MODE_SENSE: 869 { 870 void *mode_buf; 871 int mode_buf_len; 872 873 mode_buf_len = sizeof(struct scsi_mode_header_6) 874 + sizeof(struct scsi_mode_blk_desc) 875 + sizeof(struct scsi_control_page); 876 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 877 if (mode_buf != NULL) { 878 scsi_mode_sense(csio, 879 /*retries*/4, 880 probedone, 881 MSG_SIMPLE_Q_TAG, 882 /*dbd*/FALSE, 883 SMS_PAGE_CTRL_CURRENT, 884 SMS_CONTROL_MODE_PAGE, 885 mode_buf, 886 mode_buf_len, 887 SSD_FULL_SIZE, 888 /*timeout*/60000); 889 break; 890 } 891 xpt_print(periph->path, "Unable to mode sense control page - " 892 "malloc failure\n"); 893 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 894 } 895 /* FALLTHROUGH */ 896 case PROBE_SUPPORTED_VPD_LIST: 897 { 898 struct scsi_vpd_supported_page_list *vpd_list; 899 struct cam_ed *device; 900 901 vpd_list = NULL; 902 device = periph->path->device; 903 904 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 905 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 906 M_NOWAIT | M_ZERO); 907 908 if (vpd_list != NULL) { 909 scsi_inquiry(csio, 910 /*retries*/4, 911 probedone, 912 MSG_SIMPLE_Q_TAG, 913 (u_int8_t *)vpd_list, 914 sizeof(*vpd_list), 915 /*evpd*/TRUE, 916 SVPD_SUPPORTED_PAGE_LIST, 917 SSD_MIN_SIZE, 918 /*timeout*/60 * 1000); 919 break; 920 } 921done: 922 /* 923 * We'll have to do without, let our probedone 924 * routine finish up for us. 925 */ 926 start_ccb->csio.data_ptr = NULL; 927 cam_freeze_devq(periph->path); 928 cam_periph_doacquire(periph); 929 probedone(periph, start_ccb); 930 return; 931 } 932 case PROBE_DEVICE_ID: 933 { 934 struct scsi_vpd_device_id *devid; 935 936 devid = NULL; 937 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 938 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 939 M_NOWAIT | M_ZERO); 940 941 if (devid != NULL) { 942 scsi_inquiry(csio, 943 /*retries*/4, 944 probedone, 945 MSG_SIMPLE_Q_TAG, 946 (uint8_t *)devid, 947 SVPD_DEVICE_ID_MAX_SIZE, 948 /*evpd*/TRUE, 949 SVPD_DEVICE_ID, 950 SSD_MIN_SIZE, 951 /*timeout*/60 * 1000); 952 break; 953 } 954 goto done; 955 } 956 case PROBE_EXTENDED_INQUIRY: 957 { 958 struct scsi_vpd_extended_inquiry_data *ext_inq; 959 960 ext_inq = NULL; 961 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 962 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 963 M_NOWAIT | M_ZERO); 964 965 if (ext_inq != NULL) { 966 scsi_inquiry(csio, 967 /*retries*/4, 968 probedone, 969 MSG_SIMPLE_Q_TAG, 970 (uint8_t *)ext_inq, 971 sizeof(*ext_inq), 972 /*evpd*/TRUE, 973 SVPD_EXTENDED_INQUIRY_DATA, 974 SSD_MIN_SIZE, 975 /*timeout*/60 * 1000); 976 break; 977 } 978 /* 979 * We'll have to do without, let our probedone 980 * routine finish up for us. 981 */ 982 goto done; 983 } 984 case PROBE_SERIAL_NUM: 985 { 986 struct scsi_vpd_unit_serial_number *serial_buf; 987 struct cam_ed* device; 988 989 serial_buf = NULL; 990 device = periph->path->device; 991 if (device->serial_num != NULL) { 992 free(device->serial_num, M_CAMXPT); 993 device->serial_num = NULL; 994 device->serial_num_len = 0; 995 } 996 997 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 998 serial_buf = (struct scsi_vpd_unit_serial_number *) 999 malloc(sizeof(*serial_buf), M_CAMXPT, 1000 M_NOWAIT|M_ZERO); 1001 1002 if (serial_buf != NULL) { 1003 scsi_inquiry(csio, 1004 /*retries*/4, 1005 probedone, 1006 MSG_SIMPLE_Q_TAG, 1007 (u_int8_t *)serial_buf, 1008 sizeof(*serial_buf), 1009 /*evpd*/TRUE, 1010 SVPD_UNIT_SERIAL_NUMBER, 1011 SSD_MIN_SIZE, 1012 /*timeout*/60 * 1000); 1013 break; 1014 } 1015 goto done; 1016 } 1017 default: 1018 panic("probestart: invalid action state 0x%x\n", softc->action); 1019 } 1020 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1021 cam_periph_doacquire(periph); 1022 xpt_action(start_ccb); 1023} 1024 1025static void 1026proberequestdefaultnegotiation(struct cam_periph *periph) 1027{ 1028 struct ccb_trans_settings cts; 1029 1030 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1031 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1032 cts.type = CTS_TYPE_USER_SETTINGS; 1033 xpt_action((union ccb *)&cts); 1034 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1035 return; 1036 } 1037 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1038 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1039 xpt_action((union ccb *)&cts); 1040} 1041 1042/* 1043 * Backoff Negotiation Code- only pertinent for SPI devices. 1044 */ 1045static int 1046proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1047{ 1048 struct ccb_trans_settings cts; 1049 struct ccb_trans_settings_spi *spi; 1050 1051 memset(&cts, 0, sizeof (cts)); 1052 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1053 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1054 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1055 xpt_action((union ccb *)&cts); 1056 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1057 if (bootverbose) { 1058 xpt_print(periph->path, 1059 "failed to get current device settings\n"); 1060 } 1061 return (0); 1062 } 1063 if (cts.transport != XPORT_SPI) { 1064 if (bootverbose) { 1065 xpt_print(periph->path, "not SPI transport\n"); 1066 } 1067 return (0); 1068 } 1069 spi = &cts.xport_specific.spi; 1070 1071 /* 1072 * We cannot renegotiate sync rate if we don't have one. 1073 */ 1074 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1075 if (bootverbose) { 1076 xpt_print(periph->path, "no sync rate known\n"); 1077 } 1078 return (0); 1079 } 1080 1081 /* 1082 * We'll assert that we don't have to touch PPR options- the 1083 * SIM will see what we do with period and offset and adjust 1084 * the PPR options as appropriate. 1085 */ 1086 1087 /* 1088 * A sync rate with unknown or zero offset is nonsensical. 1089 * A sync period of zero means Async. 1090 */ 1091 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1092 || spi->sync_offset == 0 || spi->sync_period == 0) { 1093 if (bootverbose) { 1094 xpt_print(periph->path, "no sync rate available\n"); 1095 } 1096 return (0); 1097 } 1098 1099 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1100 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1101 ("hit async: giving up on DV\n")); 1102 return (0); 1103 } 1104 1105 1106 /* 1107 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1108 * We don't try to remember 'last' settings to see if the SIM actually 1109 * gets into the speed we want to set. We check on the SIM telling 1110 * us that a requested speed is bad, but otherwise don't try and 1111 * check the speed due to the asynchronous and handshake nature 1112 * of speed setting. 1113 */ 1114 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1115 for (;;) { 1116 spi->sync_period++; 1117 if (spi->sync_period >= 0xf) { 1118 spi->sync_period = 0; 1119 spi->sync_offset = 0; 1120 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1121 ("setting to async for DV\n")); 1122 /* 1123 * Once we hit async, we don't want to try 1124 * any more settings. 1125 */ 1126 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1127 } else if (bootverbose) { 1128 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1129 ("DV: period 0x%x\n", spi->sync_period)); 1130 printf("setting period to 0x%x\n", spi->sync_period); 1131 } 1132 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1133 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1134 xpt_action((union ccb *)&cts); 1135 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1136 break; 1137 } 1138 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1139 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1140 if (spi->sync_period == 0) { 1141 return (0); 1142 } 1143 } 1144 return (1); 1145} 1146 1147#define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1148 1149static void 1150probedone(struct cam_periph *periph, union ccb *done_ccb) 1151{ 1152 probe_softc *softc; 1153 struct cam_path *path; 1154 struct scsi_inquiry_data *inq_buf; 1155 u_int32_t priority; 1156 1157 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1158 1159 softc = (probe_softc *)periph->softc; 1160 path = done_ccb->ccb_h.path; 1161 priority = done_ccb->ccb_h.pinfo.priority; 1162 cam_periph_assert(periph, MA_OWNED); 1163 1164 switch (softc->action) { 1165 case PROBE_TUR: 1166 { 1167 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1168 1169 if (cam_periph_error(done_ccb, 0, 1170 SF_NO_PRINT, NULL) == ERESTART) { 1171outr: 1172 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1173 cam_release_devq(path, 0, 0, 0, FALSE); 1174 return; 1175 } 1176 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1177 /* Don't wedge the queue */ 1178 xpt_release_devq(done_ccb->ccb_h.path, 1179 /*count*/1, 1180 /*run_queue*/TRUE); 1181 } 1182 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1183 xpt_release_ccb(done_ccb); 1184 xpt_schedule(periph, priority); 1185out: 1186 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1187 cam_release_devq(path, 0, 0, 0, FALSE); 1188 cam_periph_release_locked(periph); 1189 return; 1190 } 1191 case PROBE_INQUIRY: 1192 case PROBE_FULL_INQUIRY: 1193 { 1194 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1195 u_int8_t periph_qual; 1196 1197 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1198 scsi_find_quirk(path->device); 1199 inq_buf = &path->device->inq_data; 1200 1201 periph_qual = SID_QUAL(inq_buf); 1202 1203 if (periph_qual == SID_QUAL_LU_CONNECTED || 1204 periph_qual == SID_QUAL_LU_OFFLINE) { 1205 u_int8_t len; 1206 1207 /* 1208 * We conservatively request only 1209 * SHORT_INQUIRY_LEN bytes of inquiry 1210 * information during our first try 1211 * at sending an INQUIRY. If the device 1212 * has more information to give, 1213 * perform a second request specifying 1214 * the amount of information the device 1215 * is willing to give. 1216 */ 1217 len = inq_buf->additional_length 1218 + offsetof(struct scsi_inquiry_data, 1219 additional_length) + 1; 1220 if (softc->action == PROBE_INQUIRY 1221 && len > SHORT_INQUIRY_LENGTH) { 1222 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1223 xpt_release_ccb(done_ccb); 1224 xpt_schedule(periph, priority); 1225 goto out; 1226 } 1227 1228 scsi_devise_transport(path); 1229 1230 if (path->device->lun_id == 0 && 1231 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1232 (SCSI_QUIRK(path->device)->quirks & 1233 CAM_QUIRK_NORPTLUNS) == 0) { 1234 PROBE_SET_ACTION(softc, 1235 PROBE_REPORT_LUNS); 1236 /* 1237 * Start with room for *one* lun. 1238 */ 1239 periph->path->target->rpl_size = 16; 1240 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1241 PROBE_SET_ACTION(softc, 1242 PROBE_MODE_SENSE); 1243 else 1244 PROBE_SET_ACTION(softc, 1245 PROBE_SUPPORTED_VPD_LIST); 1246 1247 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1248 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1249 xpt_acquire_device(path->device); 1250 } 1251 xpt_release_ccb(done_ccb); 1252 xpt_schedule(periph, priority); 1253 goto out; 1254 } else if (path->device->lun_id == 0 && 1255 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1256 (SCSI_QUIRK(path->device)->quirks & 1257 CAM_QUIRK_NORPTLUNS) == 0) { 1258 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1259 periph->path->target->rpl_size = 16; 1260 xpt_release_ccb(done_ccb); 1261 xpt_schedule(periph, priority); 1262 goto out; 1263 } 1264 } else if (cam_periph_error(done_ccb, 0, 1265 done_ccb->ccb_h.target_lun > 0 1266 ? SF_RETRY_UA|SF_QUIET_IR 1267 : SF_RETRY_UA, 1268 &softc->saved_ccb) == ERESTART) { 1269 goto outr; 1270 } else { 1271 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1272 /* Don't wedge the queue */ 1273 xpt_release_devq(done_ccb->ccb_h.path, 1274 /*count*/1, /*run_queue*/TRUE); 1275 } 1276 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1277 } 1278 /* 1279 * If we get to this point, we got an error status back 1280 * from the inquiry and the error status doesn't require 1281 * automatically retrying the command. Therefore, the 1282 * inquiry failed. If we had inquiry information before 1283 * for this device, but this latest inquiry command failed, 1284 * the device has probably gone away. If this device isn't 1285 * already marked unconfigured, notify the peripheral 1286 * drivers that this device is no more. 1287 */ 1288 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1289 /* Send the async notification. */ 1290 xpt_async(AC_LOST_DEVICE, path, NULL); 1291 PROBE_SET_ACTION(softc, PROBE_INVALID); 1292 1293 xpt_release_ccb(done_ccb); 1294 break; 1295 } 1296 case PROBE_REPORT_LUNS: 1297 { 1298 struct ccb_scsiio *csio; 1299 struct scsi_report_luns_data *lp; 1300 u_int nlun, maxlun; 1301 1302 csio = &done_ccb->csio; 1303 1304 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1305 nlun = scsi_4btoul(lp->length) / 8; 1306 maxlun = (csio->dxfer_len / 8) - 1; 1307 1308 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1309 if (cam_periph_error(done_ccb, 0, 1310 done_ccb->ccb_h.target_lun > 0 ? 1311 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1312 &softc->saved_ccb) == ERESTART) { 1313 goto outr; 1314 } 1315 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1316 xpt_release_devq(done_ccb->ccb_h.path, 1, 1317 TRUE); 1318 } 1319 free(lp, M_CAMXPT); 1320 lp = NULL; 1321 } else if (nlun > maxlun) { 1322 /* 1323 * Reallocate and retry to cover all luns 1324 */ 1325 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1326 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1327 nlun)); 1328 free(lp, M_CAMXPT); 1329 path->target->rpl_size = (nlun << 3) + 8; 1330 xpt_release_ccb(done_ccb); 1331 xpt_schedule(periph, priority); 1332 goto out; 1333 } else if (nlun == 0) { 1334 /* 1335 * If there don't appear to be any luns, bail. 1336 */ 1337 free(lp, M_CAMXPT); 1338 lp = NULL; 1339 } else { 1340 lun_id_t lun; 1341 int idx; 1342 1343 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1344 ("Probe: %u lun(s) reported\n", nlun)); 1345 1346 CAM_GET_LUN(lp, 0, lun); 1347 /* 1348 * If the first lun is not lun 0, then either there 1349 * is no lun 0 in the list, or the list is unsorted. 1350 */ 1351 if (lun != 0) { 1352 for (idx = 0; idx < nlun; idx++) { 1353 CAM_GET_LUN(lp, idx, lun); 1354 if (lun == 0) { 1355 break; 1356 } 1357 } 1358 if (idx != nlun) { 1359 uint8_t tlun[8]; 1360 memcpy(tlun, 1361 lp->luns[0].lundata, 8); 1362 memcpy(lp->luns[0].lundata, 1363 lp->luns[idx].lundata, 8); 1364 memcpy(lp->luns[idx].lundata, 1365 tlun, 8); 1366 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1367 ("lun 0 in position %u\n", idx)); 1368 } 1369 } 1370 /* 1371 * If we have an old lun list, We can either 1372 * retest luns that appear to have been dropped, 1373 * or just nuke them. We'll opt for the latter. 1374 * This function will also install the new list 1375 * in the target structure. 1376 */ 1377 probe_purge_old(path, lp, softc->flags); 1378 lp = NULL; 1379 } 1380 /* The processing above should either exit via a `goto 1381 * out` or leave the `lp` variable `NULL` and (if 1382 * applicable) `free()` the storage to which it had 1383 * pointed. Assert here that is the case. 1384 */ 1385 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1386 inq_buf = &path->device->inq_data; 1387 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1388 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1389 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1390 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1391 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1392 else 1393 PROBE_SET_ACTION(softc, 1394 PROBE_SUPPORTED_VPD_LIST); 1395 xpt_release_ccb(done_ccb); 1396 xpt_schedule(periph, priority); 1397 goto out; 1398 } 1399 PROBE_SET_ACTION(softc, PROBE_INVALID); 1400 xpt_release_ccb(done_ccb); 1401 break; 1402 } 1403 case PROBE_MODE_SENSE: 1404 { 1405 struct ccb_scsiio *csio; 1406 struct scsi_mode_header_6 *mode_hdr; 1407 1408 csio = &done_ccb->csio; 1409 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1410 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1411 struct scsi_control_page *page; 1412 u_int8_t *offset; 1413 1414 offset = ((u_int8_t *)&mode_hdr[1]) 1415 + mode_hdr->blk_desc_len; 1416 page = (struct scsi_control_page *)offset; 1417 path->device->queue_flags = page->queue_flags; 1418 } else if (cam_periph_error(done_ccb, 0, 1419 SF_RETRY_UA|SF_NO_PRINT, 1420 &softc->saved_ccb) == ERESTART) { 1421 goto outr; 1422 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1423 /* Don't wedge the queue */ 1424 xpt_release_devq(done_ccb->ccb_h.path, 1425 /*count*/1, /*run_queue*/TRUE); 1426 } 1427 xpt_release_ccb(done_ccb); 1428 free(mode_hdr, M_CAMXPT); 1429 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1430 xpt_schedule(periph, priority); 1431 goto out; 1432 } 1433 case PROBE_SUPPORTED_VPD_LIST: 1434 { 1435 struct ccb_scsiio *csio; 1436 struct scsi_vpd_supported_page_list *page_list; 1437 1438 csio = &done_ccb->csio; 1439 page_list = 1440 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1441 1442 if (path->device->supported_vpds != NULL) { 1443 free(path->device->supported_vpds, M_CAMXPT); 1444 path->device->supported_vpds = NULL; 1445 path->device->supported_vpds_len = 0; 1446 } 1447 1448 if (page_list == NULL) { 1449 /* 1450 * Don't process the command as it was never sent 1451 */ 1452 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1453 /* Got vpd list */ 1454 path->device->supported_vpds_len = page_list->length + 1455 SVPD_SUPPORTED_PAGES_HDR_LEN; 1456 path->device->supported_vpds = (uint8_t *)page_list; 1457 xpt_release_ccb(done_ccb); 1458 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1459 xpt_schedule(periph, priority); 1460 goto out; 1461 } else if (cam_periph_error(done_ccb, 0, 1462 SF_RETRY_UA|SF_NO_PRINT, 1463 &softc->saved_ccb) == ERESTART) { 1464 goto outr; 1465 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1466 /* Don't wedge the queue */ 1467 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1468 /*run_queue*/TRUE); 1469 } 1470 1471 if (page_list) 1472 free(page_list, M_CAMXPT); 1473 /* No VPDs available, skip to device check. */ 1474 csio->data_ptr = NULL; 1475 goto probe_device_check; 1476 } 1477 case PROBE_DEVICE_ID: 1478 { 1479 struct scsi_vpd_device_id *devid; 1480 struct ccb_scsiio *csio; 1481 uint32_t length = 0; 1482 1483 csio = &done_ccb->csio; 1484 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1485 1486 /* Clean up from previous instance of this device */ 1487 if (path->device->device_id != NULL) { 1488 path->device->device_id_len = 0; 1489 free(path->device->device_id, M_CAMXPT); 1490 path->device->device_id = NULL; 1491 } 1492 1493 if (devid == NULL) { 1494 /* Don't process the command as it was never sent */ 1495 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1496 length = scsi_2btoul(devid->length); 1497 if (length != 0) { 1498 /* 1499 * NB: device_id_len is actual response 1500 * size, not buffer size. 1501 */ 1502 path->device->device_id_len = length + 1503 SVPD_DEVICE_ID_HDR_LEN; 1504 path->device->device_id = (uint8_t *)devid; 1505 } 1506 } else if (cam_periph_error(done_ccb, 0, 1507 SF_RETRY_UA, 1508 &softc->saved_ccb) == ERESTART) { 1509 goto outr; 1510 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1511 /* Don't wedge the queue */ 1512 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1513 /*run_queue*/TRUE); 1514 } 1515 1516 /* Free the device id space if we don't use it */ 1517 if (devid && length == 0) 1518 free(devid, M_CAMXPT); 1519 xpt_release_ccb(done_ccb); 1520 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1521 xpt_schedule(periph, priority); 1522 goto out; 1523 } 1524 case PROBE_EXTENDED_INQUIRY: { 1525 struct scsi_vpd_extended_inquiry_data *ext_inq; 1526 struct ccb_scsiio *csio; 1527 int32_t length = 0; 1528 1529 csio = &done_ccb->csio; 1530 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1531 csio->data_ptr; 1532 if (path->device->ext_inq != NULL) { 1533 path->device->ext_inq_len = 0; 1534 free(path->device->ext_inq, M_CAMXPT); 1535 path->device->ext_inq = NULL; 1536 } 1537 1538 if (ext_inq == NULL) { 1539 /* Don't process the command as it was never sent */ 1540 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1541 length = scsi_2btoul(ext_inq->page_length) + 1542 __offsetof(struct scsi_vpd_extended_inquiry_data, 1543 flags1); 1544 length = min(length, sizeof(*ext_inq)); 1545 length -= csio->resid; 1546 if (length > 0) { 1547 path->device->ext_inq_len = length; 1548 path->device->ext_inq = (uint8_t *)ext_inq; 1549 } 1550 } else if (cam_periph_error(done_ccb, 0, 1551 SF_RETRY_UA, 1552 &softc->saved_ccb) == ERESTART) { 1553 goto outr; 1554 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1555 /* Don't wedge the queue */ 1556 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1557 /*run_queue*/TRUE); 1558 } 1559 1560 /* Free the device id space if we don't use it */ 1561 if (ext_inq && length <= 0) 1562 free(ext_inq, M_CAMXPT); 1563 xpt_release_ccb(done_ccb); 1564 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1565 xpt_schedule(periph, priority); 1566 goto out; 1567 } 1568 1569probe_device_check: 1570 case PROBE_SERIAL_NUM: 1571 { 1572 struct ccb_scsiio *csio; 1573 struct scsi_vpd_unit_serial_number *serial_buf; 1574 u_int32_t priority; 1575 int changed; 1576 int have_serialnum; 1577 1578 changed = 1; 1579 have_serialnum = 0; 1580 csio = &done_ccb->csio; 1581 priority = done_ccb->ccb_h.pinfo.priority; 1582 serial_buf = 1583 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1584 1585 if (serial_buf == NULL) { 1586 /* 1587 * Don't process the command as it was never sent 1588 */ 1589 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1590 && (serial_buf->length > 0)) { 1591 1592 have_serialnum = 1; 1593 path->device->serial_num = 1594 (u_int8_t *)malloc((serial_buf->length + 1), 1595 M_CAMXPT, M_NOWAIT); 1596 if (path->device->serial_num != NULL) { 1597 int start, slen; 1598 1599 start = strspn(serial_buf->serial_num, " "); 1600 slen = serial_buf->length - start; 1601 if (slen <= 0) { 1602 /* 1603 * SPC5r05 says that an all-space serial 1604 * number means no product serial number 1605 * is available 1606 */ 1607 slen = 0; 1608 } 1609 memcpy(path->device->serial_num, 1610 &serial_buf->serial_num[start], slen); 1611 path->device->serial_num_len = slen; 1612 path->device->serial_num[slen] = '\0'; 1613 } 1614 } else if (cam_periph_error(done_ccb, 0, 1615 SF_RETRY_UA|SF_NO_PRINT, 1616 &softc->saved_ccb) == ERESTART) { 1617 goto outr; 1618 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1619 /* Don't wedge the queue */ 1620 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1621 /*run_queue*/TRUE); 1622 } 1623 1624 /* 1625 * Let's see if we have seen this device before. 1626 */ 1627 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1628 MD5_CTX context; 1629 u_int8_t digest[16]; 1630 1631 MD5Init(&context); 1632 1633 MD5Update(&context, 1634 (unsigned char *)&path->device->inq_data, 1635 sizeof(struct scsi_inquiry_data)); 1636 1637 if (have_serialnum) 1638 MD5Update(&context, path->device->serial_num, 1639 path->device->serial_num_len); 1640 1641 MD5Final(digest, &context); 1642 if (bcmp(softc->digest, digest, 16) == 0) 1643 changed = 0; 1644 1645 /* 1646 * XXX Do we need to do a TUR in order to ensure 1647 * that the device really hasn't changed??? 1648 */ 1649 if ((changed != 0) 1650 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1651 xpt_async(AC_LOST_DEVICE, path, NULL); 1652 } 1653 if (serial_buf != NULL) 1654 free(serial_buf, M_CAMXPT); 1655 1656 if (changed != 0) { 1657 /* 1658 * Now that we have all the necessary 1659 * information to safely perform transfer 1660 * negotiations... Controllers don't perform 1661 * any negotiation or tagged queuing until 1662 * after the first XPT_SET_TRAN_SETTINGS ccb is 1663 * received. So, on a new device, just retrieve 1664 * the user settings, and set them as the current 1665 * settings to set the device up. 1666 */ 1667 proberequestdefaultnegotiation(periph); 1668 xpt_release_ccb(done_ccb); 1669 1670 /* 1671 * Perform a TUR to allow the controller to 1672 * perform any necessary transfer negotiation. 1673 */ 1674 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1675 xpt_schedule(periph, priority); 1676 goto out; 1677 } 1678 xpt_release_ccb(done_ccb); 1679 break; 1680 } 1681 case PROBE_TUR_FOR_NEGOTIATION: 1682 case PROBE_DV_EXIT: 1683 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1684 cam_periph_error(done_ccb, 0, 1685 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1686 } 1687 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1688 /* Don't wedge the queue */ 1689 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1690 /*run_queue*/TRUE); 1691 } 1692 /* 1693 * Do Domain Validation for lun 0 on devices that claim 1694 * to support Synchronous Transfer modes. 1695 */ 1696 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1697 && done_ccb->ccb_h.target_lun == 0 1698 && (path->device->inq_data.flags & SID_Sync) != 0 1699 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1700 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1701 ("Begin Domain Validation\n")); 1702 path->device->flags |= CAM_DEV_IN_DV; 1703 xpt_release_ccb(done_ccb); 1704 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1705 xpt_schedule(periph, priority); 1706 goto out; 1707 } 1708 if (softc->action == PROBE_DV_EXIT) { 1709 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1710 ("Leave Domain Validation\n")); 1711 } 1712 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1713 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1714 xpt_acquire_device(path->device); 1715 } 1716 path->device->flags &= 1717 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1718 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1719 /* Inform the XPT that a new device has been found */ 1720 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1721 xpt_action(done_ccb); 1722 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1723 done_ccb); 1724 } 1725 PROBE_SET_ACTION(softc, PROBE_DONE); 1726 xpt_release_ccb(done_ccb); 1727 break; 1728 case PROBE_INQUIRY_BASIC_DV1: 1729 case PROBE_INQUIRY_BASIC_DV2: 1730 { 1731 struct scsi_inquiry_data *nbuf; 1732 struct ccb_scsiio *csio; 1733 1734 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1735 cam_periph_error(done_ccb, 0, 1736 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1737 } 1738 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1739 /* Don't wedge the queue */ 1740 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1741 /*run_queue*/TRUE); 1742 } 1743 csio = &done_ccb->csio; 1744 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1745 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1746 xpt_print(path, 1747 "inquiry data fails comparison at DV%d step\n", 1748 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1749 if (proberequestbackoff(periph, path->device)) { 1750 path->device->flags &= ~CAM_DEV_IN_DV; 1751 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1752 } else { 1753 /* give up */ 1754 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1755 } 1756 free(nbuf, M_CAMXPT); 1757 xpt_release_ccb(done_ccb); 1758 xpt_schedule(periph, priority); 1759 goto out; 1760 } 1761 free(nbuf, M_CAMXPT); 1762 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1763 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1764 xpt_release_ccb(done_ccb); 1765 xpt_schedule(periph, priority); 1766 goto out; 1767 } 1768 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1769 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1770 ("Leave Domain Validation Successfully\n")); 1771 } 1772 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1773 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1774 xpt_acquire_device(path->device); 1775 } 1776 path->device->flags &= 1777 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1778 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1779 /* Inform the XPT that a new device has been found */ 1780 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1781 xpt_action(done_ccb); 1782 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1783 done_ccb); 1784 } 1785 PROBE_SET_ACTION(softc, PROBE_DONE); 1786 xpt_release_ccb(done_ccb); 1787 break; 1788 } 1789 default: 1790 panic("probedone: invalid action state 0x%x\n", softc->action); 1791 } 1792 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1793 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1794 done_ccb->ccb_h.status = CAM_REQ_CMP; 1795 xpt_done(done_ccb); 1796 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1797 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1798 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1799 cam_release_devq(path, 0, 0, 0, FALSE); 1800 cam_periph_release_locked(periph); 1801 cam_periph_invalidate(periph); 1802 cam_periph_release_locked(periph); 1803 } else { 1804 probeschedule(periph); 1805 goto out; 1806 } 1807} 1808 1809static void 1810probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1811 probe_flags flags) 1812{ 1813 struct cam_path *tp; 1814 struct scsi_report_luns_data *old; 1815 u_int idx1, idx2, nlun_old, nlun_new; 1816 lun_id_t this_lun; 1817 u_int8_t *ol, *nl; 1818 1819 if (path->target == NULL) { 1820 return; 1821 } 1822 mtx_lock(&path->target->luns_mtx); 1823 old = path->target->luns; 1824 path->target->luns = new; 1825 mtx_unlock(&path->target->luns_mtx); 1826 if (old == NULL) 1827 return; 1828 nlun_old = scsi_4btoul(old->length) / 8; 1829 nlun_new = scsi_4btoul(new->length) / 8; 1830 1831 /* 1832 * We are not going to assume sorted lists. Deal. 1833 */ 1834 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1835 ol = old->luns[idx1].lundata; 1836 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1837 nl = new->luns[idx2].lundata; 1838 if (memcmp(nl, ol, 8) == 0) { 1839 break; 1840 } 1841 } 1842 if (idx2 < nlun_new) { 1843 continue; 1844 } 1845 /* 1846 * An 'old' item not in the 'new' list. 1847 * Nuke it. Except that if it is lun 0, 1848 * that would be what the probe state 1849 * machine is currently working on, 1850 * so we won't do that. 1851 */ 1852 CAM_GET_LUN(old, idx1, this_lun); 1853 if (this_lun == 0) { 1854 continue; 1855 } 1856 1857 /* 1858 * We also cannot nuke it if it is 1859 * not in a lun format we understand 1860 * and replace the LUN with a "simple" LUN 1861 * if that is all the HBA supports. 1862 */ 1863 if (!(flags & PROBE_EXTLUN)) { 1864 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1865 continue; 1866 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1867 } 1868 1869 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1870 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1871 xpt_async(AC_LOST_DEVICE, tp, NULL); 1872 xpt_free_path(tp); 1873 } 1874 } 1875 free(old, M_CAMXPT); 1876} 1877 1878static void 1879probecleanup(struct cam_periph *periph) 1880{ 1881 free(periph->softc, M_CAMXPT); 1882} 1883 1884static void 1885scsi_find_quirk(struct cam_ed *device) 1886{ 1887 struct scsi_quirk_entry *quirk; 1888 caddr_t match; 1889 1890 match = cam_quirkmatch((caddr_t)&device->inq_data, 1891 (caddr_t)scsi_quirk_table, 1892 nitems(scsi_quirk_table), 1893 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1894 1895 if (match == NULL) 1896 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1897 1898 quirk = (struct scsi_quirk_entry *)match; 1899 device->quirk = quirk; 1900 device->mintags = quirk->mintags; 1901 device->maxtags = quirk->maxtags; 1902} 1903 1904static int 1905sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1906{ 1907 int error, val; 1908 1909 val = cam_srch_hi; 1910 error = sysctl_handle_int(oidp, &val, 0, req); 1911 if (error != 0 || req->newptr == NULL) 1912 return (error); 1913 if (val == 0 || val == 1) { 1914 cam_srch_hi = val; 1915 return (0); 1916 } else { 1917 return (EINVAL); 1918 } 1919} 1920 1921typedef struct { 1922 union ccb *request_ccb; 1923 struct ccb_pathinq *cpi; 1924 int counter; 1925 int lunindex[0]; 1926} scsi_scan_bus_info; 1927 1928/* 1929 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1930 * As the scan progresses, scsi_scan_bus is used as the 1931 * callback on completion function. 1932 */ 1933static void 1934scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1935{ 1936 struct mtx *mtx; 1937 1938 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1939 ("scsi_scan_bus\n")); 1940 switch (request_ccb->ccb_h.func_code) { 1941 case XPT_SCAN_BUS: 1942 case XPT_SCAN_TGT: 1943 { 1944 scsi_scan_bus_info *scan_info; 1945 union ccb *work_ccb, *reset_ccb; 1946 struct cam_path *path; 1947 u_int i; 1948 u_int low_target, max_target; 1949 u_int initiator_id; 1950 1951 /* Find out the characteristics of the bus */ 1952 work_ccb = xpt_alloc_ccb_nowait(); 1953 if (work_ccb == NULL) { 1954 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1955 xpt_done(request_ccb); 1956 return; 1957 } 1958 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1959 request_ccb->ccb_h.pinfo.priority); 1960 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1961 xpt_action(work_ccb); 1962 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1963 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1964 xpt_free_ccb(work_ccb); 1965 xpt_done(request_ccb); 1966 return; 1967 } 1968 1969 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1970 /* 1971 * Can't scan the bus on an adapter that 1972 * cannot perform the initiator role. 1973 */ 1974 request_ccb->ccb_h.status = CAM_REQ_CMP; 1975 xpt_free_ccb(work_ccb); 1976 xpt_done(request_ccb); 1977 return; 1978 } 1979 1980 /* We may need to reset bus first, if we haven't done it yet. */ 1981 if ((work_ccb->cpi.hba_inquiry & 1982 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1983 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1984 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1985 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1986 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1987 CAM_PRIORITY_NONE); 1988 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1989 xpt_action(reset_ccb); 1990 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1991 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1992 xpt_free_ccb(reset_ccb); 1993 xpt_free_ccb(work_ccb); 1994 xpt_done(request_ccb); 1995 return; 1996 } 1997 xpt_free_ccb(reset_ccb); 1998 } 1999 2000 /* Save some state for use while we probe for devices */ 2001 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2002 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2003 if (scan_info == NULL) { 2004 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2005 xpt_free_ccb(work_ccb); 2006 xpt_done(request_ccb); 2007 return; 2008 } 2009 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2010 ("SCAN start for %p\n", scan_info)); 2011 scan_info->request_ccb = request_ccb; 2012 scan_info->cpi = &work_ccb->cpi; 2013 2014 /* Cache on our stack so we can work asynchronously */ 2015 max_target = scan_info->cpi->max_target; 2016 low_target = 0; 2017 initiator_id = scan_info->cpi->initiator_id; 2018 2019 2020 /* 2021 * We can scan all targets in parallel, or do it sequentially. 2022 */ 2023 2024 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2025 max_target = low_target = request_ccb->ccb_h.target_id; 2026 scan_info->counter = 0; 2027 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2028 max_target = 0; 2029 scan_info->counter = 0; 2030 } else { 2031 scan_info->counter = scan_info->cpi->max_target + 1; 2032 if (scan_info->cpi->initiator_id < scan_info->counter) { 2033 scan_info->counter--; 2034 } 2035 } 2036 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2037 mtx_unlock(mtx); 2038 2039 for (i = low_target; i <= max_target; i++) { 2040 cam_status status; 2041 if (i == initiator_id) 2042 continue; 2043 2044 status = xpt_create_path(&path, NULL, 2045 request_ccb->ccb_h.path_id, 2046 i, 0); 2047 if (status != CAM_REQ_CMP) { 2048 printf("scsi_scan_bus: xpt_create_path failed" 2049 " with status %#x, bus scan halted\n", 2050 status); 2051 free(scan_info, M_CAMXPT); 2052 request_ccb->ccb_h.status = status; 2053 xpt_free_ccb(work_ccb); 2054 xpt_done(request_ccb); 2055 break; 2056 } 2057 work_ccb = xpt_alloc_ccb_nowait(); 2058 if (work_ccb == NULL) { 2059 xpt_free_ccb((union ccb *)scan_info->cpi); 2060 free(scan_info, M_CAMXPT); 2061 xpt_free_path(path); 2062 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2063 xpt_done(request_ccb); 2064 break; 2065 } 2066 xpt_setup_ccb(&work_ccb->ccb_h, path, 2067 request_ccb->ccb_h.pinfo.priority); 2068 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2069 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2070 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2071 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2072 work_ccb->crcn.flags = request_ccb->crcn.flags; 2073 xpt_action(work_ccb); 2074 } 2075 2076 mtx_lock(mtx); 2077 break; 2078 } 2079 case XPT_SCAN_LUN: 2080 { 2081 cam_status status; 2082 struct cam_path *path, *oldpath; 2083 scsi_scan_bus_info *scan_info; 2084 struct cam_et *target; 2085 struct cam_ed *device, *nextdev; 2086 int next_target; 2087 path_id_t path_id; 2088 target_id_t target_id; 2089 lun_id_t lun_id; 2090 2091 oldpath = request_ccb->ccb_h.path; 2092 2093 status = cam_ccb_status(request_ccb); 2094 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2095 path_id = request_ccb->ccb_h.path_id; 2096 target_id = request_ccb->ccb_h.target_id; 2097 lun_id = request_ccb->ccb_h.target_lun; 2098 target = request_ccb->ccb_h.path->target; 2099 next_target = 1; 2100 2101 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2102 mtx_lock(mtx); 2103 mtx_lock(&target->luns_mtx); 2104 if (target->luns) { 2105 lun_id_t first; 2106 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2107 2108 /* 2109 * Make sure we skip over lun 0 if it's the first member 2110 * of the list as we've actually just finished probing 2111 * it. 2112 */ 2113 CAM_GET_LUN(target->luns, 0, first); 2114 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2115 scan_info->lunindex[target_id]++; 2116 } 2117 2118 /* 2119 * Skip any LUNs that the HBA can't deal with. 2120 */ 2121 while (scan_info->lunindex[target_id] < nluns) { 2122 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2123 CAM_GET_LUN(target->luns, 2124 scan_info->lunindex[target_id], 2125 lun_id); 2126 break; 2127 } 2128 2129 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2130 scan_info->lunindex[target_id])) { 2131 CAM_GET_SIMPLE_LUN(target->luns, 2132 scan_info->lunindex[target_id], 2133 lun_id); 2134 break; 2135 } 2136 2137 scan_info->lunindex[target_id]++; 2138 } 2139 2140 if (scan_info->lunindex[target_id] < nluns) { 2141 mtx_unlock(&target->luns_mtx); 2142 next_target = 0; 2143 CAM_DEBUG(request_ccb->ccb_h.path, 2144 CAM_DEBUG_PROBE, 2145 ("next lun to try at index %u is %jx\n", 2146 scan_info->lunindex[target_id], 2147 (uintmax_t)lun_id)); 2148 scan_info->lunindex[target_id]++; 2149 } else { 2150 mtx_unlock(&target->luns_mtx); 2151 /* We're done with scanning all luns. */ 2152 } 2153 } else { 2154 mtx_unlock(&target->luns_mtx); 2155 device = request_ccb->ccb_h.path->device; 2156 /* Continue sequential LUN scan if: */ 2157 /* -- we have more LUNs that need recheck */ 2158 mtx_lock(&target->bus->eb_mtx); 2159 nextdev = device; 2160 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2161 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2162 break; 2163 mtx_unlock(&target->bus->eb_mtx); 2164 if (nextdev != NULL) { 2165 next_target = 0; 2166 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2167 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2168 next_target = 1; 2169 /* -- this LUN is connected and its SCSI version 2170 * allows more LUNs. */ 2171 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2172 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2173 CAN_SRCH_HI_DENSE(device)) 2174 next_target = 0; 2175 /* -- this LUN is disconnected, its SCSI version 2176 * allows more LUNs and we guess they may be. */ 2177 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2178 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2179 CAN_SRCH_HI_SPARSE(device)) 2180 next_target = 0; 2181 } 2182 if (next_target == 0) { 2183 lun_id++; 2184 if (lun_id > scan_info->cpi->max_lun) 2185 next_target = 1; 2186 } 2187 } 2188 2189 /* 2190 * Check to see if we scan any further luns. 2191 */ 2192 if (next_target) { 2193 int done; 2194 2195 /* 2196 * Free the current request path- we're done with it. 2197 */ 2198 xpt_free_path(oldpath); 2199 hop_again: 2200 done = 0; 2201 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2202 done = 1; 2203 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2204 scan_info->counter++; 2205 if (scan_info->counter == 2206 scan_info->cpi->initiator_id) { 2207 scan_info->counter++; 2208 } 2209 if (scan_info->counter >= 2210 scan_info->cpi->max_target+1) { 2211 done = 1; 2212 } 2213 } else { 2214 scan_info->counter--; 2215 if (scan_info->counter == 0) { 2216 done = 1; 2217 } 2218 } 2219 if (done) { 2220 mtx_unlock(mtx); 2221 xpt_free_ccb(request_ccb); 2222 xpt_free_ccb((union ccb *)scan_info->cpi); 2223 request_ccb = scan_info->request_ccb; 2224 CAM_DEBUG(request_ccb->ccb_h.path, 2225 CAM_DEBUG_TRACE, 2226 ("SCAN done for %p\n", scan_info)); 2227 free(scan_info, M_CAMXPT); 2228 request_ccb->ccb_h.status = CAM_REQ_CMP; 2229 xpt_done(request_ccb); 2230 break; 2231 } 2232 2233 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2234 mtx_unlock(mtx); 2235 xpt_free_ccb(request_ccb); 2236 break; 2237 } 2238 status = xpt_create_path(&path, NULL, 2239 scan_info->request_ccb->ccb_h.path_id, 2240 scan_info->counter, 0); 2241 if (status != CAM_REQ_CMP) { 2242 mtx_unlock(mtx); 2243 printf("scsi_scan_bus: xpt_create_path failed" 2244 " with status %#x, bus scan halted\n", 2245 status); 2246 xpt_free_ccb(request_ccb); 2247 xpt_free_ccb((union ccb *)scan_info->cpi); 2248 request_ccb = scan_info->request_ccb; 2249 free(scan_info, M_CAMXPT); 2250 request_ccb->ccb_h.status = status; 2251 xpt_done(request_ccb); 2252 break; 2253 } 2254 xpt_setup_ccb(&request_ccb->ccb_h, path, 2255 request_ccb->ccb_h.pinfo.priority); 2256 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2257 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2258 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2259 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2260 request_ccb->crcn.flags = 2261 scan_info->request_ccb->crcn.flags; 2262 } else { 2263 status = xpt_create_path(&path, NULL, 2264 path_id, target_id, lun_id); 2265 /* 2266 * Free the old request path- we're done with it. We 2267 * do this *after* creating the new path so that 2268 * we don't remove a target that has our lun list 2269 * in the case that lun 0 is not present. 2270 */ 2271 xpt_free_path(oldpath); 2272 if (status != CAM_REQ_CMP) { 2273 printf("scsi_scan_bus: xpt_create_path failed " 2274 "with status %#x, halting LUN scan\n", 2275 status); 2276 goto hop_again; 2277 } 2278 xpt_setup_ccb(&request_ccb->ccb_h, path, 2279 request_ccb->ccb_h.pinfo.priority); 2280 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2281 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2282 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2283 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2284 request_ccb->crcn.flags = 2285 scan_info->request_ccb->crcn.flags; 2286 } 2287 mtx_unlock(mtx); 2288 xpt_action(request_ccb); 2289 break; 2290 } 2291 default: 2292 break; 2293 } 2294} 2295 2296static void 2297scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2298 cam_flags flags, union ccb *request_ccb) 2299{ 2300 struct ccb_pathinq cpi; 2301 cam_status status; 2302 struct cam_path *new_path; 2303 struct cam_periph *old_periph; 2304 int lock; 2305 2306 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2307 2308 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2309 cpi.ccb_h.func_code = XPT_PATH_INQ; 2310 xpt_action((union ccb *)&cpi); 2311 2312 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2313 if (request_ccb != NULL) { 2314 request_ccb->ccb_h.status = cpi.ccb_h.status; 2315 xpt_done(request_ccb); 2316 } 2317 return; 2318 } 2319 2320 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2321 /* 2322 * Can't scan the bus on an adapter that 2323 * cannot perform the initiator role. 2324 */ 2325 if (request_ccb != NULL) { 2326 request_ccb->ccb_h.status = CAM_REQ_CMP; 2327 xpt_done(request_ccb); 2328 } 2329 return; 2330 } 2331 2332 if (request_ccb == NULL) { 2333 request_ccb = xpt_alloc_ccb_nowait(); 2334 if (request_ccb == NULL) { 2335 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2336 "can't continue\n"); 2337 return; 2338 } 2339 status = xpt_create_path(&new_path, NULL, 2340 path->bus->path_id, 2341 path->target->target_id, 2342 path->device->lun_id); 2343 if (status != CAM_REQ_CMP) { 2344 xpt_print(path, "scsi_scan_lun: can't create path, " 2345 "can't continue\n"); 2346 xpt_free_ccb(request_ccb); 2347 return; 2348 } 2349 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2350 request_ccb->ccb_h.cbfcnp = xptscandone; 2351 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2352 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2353 request_ccb->crcn.flags = flags; 2354 } 2355 2356 lock = (xpt_path_owned(path) == 0); 2357 if (lock) 2358 xpt_path_lock(path); 2359 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2360 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2361 probe_softc *softc; 2362 2363 softc = (probe_softc *)old_periph->softc; 2364 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2365 &request_ccb->ccb_h, periph_links.tqe); 2366 } else { 2367 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2368 xpt_done(request_ccb); 2369 } 2370 } else { 2371 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2372 probestart, "probe", 2373 CAM_PERIPH_BIO, 2374 request_ccb->ccb_h.path, NULL, 0, 2375 request_ccb); 2376 2377 if (status != CAM_REQ_CMP) { 2378 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2379 "returned an error, can't continue probe\n"); 2380 request_ccb->ccb_h.status = status; 2381 xpt_done(request_ccb); 2382 } 2383 } 2384 if (lock) 2385 xpt_path_unlock(path); 2386} 2387 2388static void 2389xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2390{ 2391 2392 xpt_free_path(done_ccb->ccb_h.path); 2393 xpt_free_ccb(done_ccb); 2394} 2395 2396static struct cam_ed * 2397scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2398{ 2399 struct scsi_quirk_entry *quirk; 2400 struct cam_ed *device; 2401 2402 device = xpt_alloc_device(bus, target, lun_id); 2403 if (device == NULL) 2404 return (NULL); 2405 2406 /* 2407 * Take the default quirk entry until we have inquiry 2408 * data and can determine a better quirk to use. 2409 */ 2410 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2411 device->quirk = (void *)quirk; 2412 device->mintags = quirk->mintags; 2413 device->maxtags = quirk->maxtags; 2414 bzero(&device->inq_data, sizeof(device->inq_data)); 2415 device->inq_flags = 0; 2416 device->queue_flags = 0; 2417 device->serial_num = NULL; 2418 device->serial_num_len = 0; 2419 device->device_id = NULL; 2420 device->device_id_len = 0; 2421 device->supported_vpds = NULL; 2422 device->supported_vpds_len = 0; 2423 return (device); 2424} 2425 2426static void 2427scsi_devise_transport(struct cam_path *path) 2428{ 2429 struct ccb_pathinq cpi; 2430 struct ccb_trans_settings cts; 2431 struct scsi_inquiry_data *inq_buf; 2432 2433 /* Get transport information from the SIM */ 2434 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2435 cpi.ccb_h.func_code = XPT_PATH_INQ; 2436 xpt_action((union ccb *)&cpi); 2437 2438 inq_buf = NULL; 2439 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2440 inq_buf = &path->device->inq_data; 2441 path->device->protocol = PROTO_SCSI; 2442 path->device->protocol_version = 2443 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2444 path->device->transport = cpi.transport; 2445 path->device->transport_version = cpi.transport_version; 2446 2447 /* 2448 * Any device not using SPI3 features should 2449 * be considered SPI2 or lower. 2450 */ 2451 if (inq_buf != NULL) { 2452 if (path->device->transport == XPORT_SPI 2453 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2454 && path->device->transport_version > 2) 2455 path->device->transport_version = 2; 2456 } else { 2457 struct cam_ed* otherdev; 2458 2459 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2460 otherdev != NULL; 2461 otherdev = TAILQ_NEXT(otherdev, links)) { 2462 if (otherdev != path->device) 2463 break; 2464 } 2465 2466 if (otherdev != NULL) { 2467 /* 2468 * Initially assume the same versioning as 2469 * prior luns for this target. 2470 */ 2471 path->device->protocol_version = 2472 otherdev->protocol_version; 2473 path->device->transport_version = 2474 otherdev->transport_version; 2475 } else { 2476 /* Until we know better, opt for safety */ 2477 path->device->protocol_version = 2; 2478 if (path->device->transport == XPORT_SPI) 2479 path->device->transport_version = 2; 2480 else 2481 path->device->transport_version = 0; 2482 } 2483 } 2484 2485 /* 2486 * XXX 2487 * For a device compliant with SPC-2 we should be able 2488 * to determine the transport version supported by 2489 * scrutinizing the version descriptors in the 2490 * inquiry buffer. 2491 */ 2492 2493 /* Tell the controller what we think */ 2494 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2495 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2496 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2497 cts.transport = path->device->transport; 2498 cts.transport_version = path->device->transport_version; 2499 cts.protocol = path->device->protocol; 2500 cts.protocol_version = path->device->protocol_version; 2501 cts.proto_specific.valid = 0; 2502 cts.xport_specific.valid = 0; 2503 xpt_action((union ccb *)&cts); 2504} 2505 2506static void 2507scsi_dev_advinfo(union ccb *start_ccb) 2508{ 2509 struct cam_ed *device; 2510 struct ccb_dev_advinfo *cdai; 2511 off_t amt; 2512 2513 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2514 device = start_ccb->ccb_h.path->device; 2515 cdai = &start_ccb->cdai; 2516 switch(cdai->buftype) { 2517 case CDAI_TYPE_SCSI_DEVID: 2518 if (cdai->flags & CDAI_FLAG_STORE) 2519 return; 2520 cdai->provsiz = device->device_id_len; 2521 if (device->device_id_len == 0) 2522 break; 2523 amt = device->device_id_len; 2524 if (cdai->provsiz > cdai->bufsiz) 2525 amt = cdai->bufsiz; 2526 memcpy(cdai->buf, device->device_id, amt); 2527 break; 2528 case CDAI_TYPE_SERIAL_NUM: 2529 if (cdai->flags & CDAI_FLAG_STORE) 2530 return; 2531 cdai->provsiz = device->serial_num_len; 2532 if (device->serial_num_len == 0) 2533 break; 2534 amt = device->serial_num_len; 2535 if (cdai->provsiz > cdai->bufsiz) 2536 amt = cdai->bufsiz; 2537 memcpy(cdai->buf, device->serial_num, amt); 2538 break; 2539 case CDAI_TYPE_PHYS_PATH: 2540 if (cdai->flags & CDAI_FLAG_STORE) { 2541 if (device->physpath != NULL) { 2542 free(device->physpath, M_CAMXPT); 2543 device->physpath = NULL; 2544 device->physpath_len = 0; 2545 } 2546 /* Clear existing buffer if zero length */ 2547 if (cdai->bufsiz == 0) 2548 break; 2549 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2550 if (device->physpath == NULL) { 2551 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2552 return; 2553 } 2554 device->physpath_len = cdai->bufsiz; 2555 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2556 } else { 2557 cdai->provsiz = device->physpath_len; 2558 if (device->physpath_len == 0) 2559 break; 2560 amt = device->physpath_len; 2561 if (cdai->provsiz > cdai->bufsiz) 2562 amt = cdai->bufsiz; 2563 memcpy(cdai->buf, device->physpath, amt); 2564 } 2565 break; 2566 case CDAI_TYPE_RCAPLONG: 2567 if (cdai->flags & CDAI_FLAG_STORE) { 2568 if (device->rcap_buf != NULL) { 2569 free(device->rcap_buf, M_CAMXPT); 2570 device->rcap_buf = NULL; 2571 } 2572 2573 device->rcap_len = cdai->bufsiz; 2574 /* Clear existing buffer if zero length */ 2575 if (cdai->bufsiz == 0) 2576 break; 2577 2578 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2579 M_NOWAIT); 2580 if (device->rcap_buf == NULL) { 2581 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2582 return; 2583 } 2584 2585 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2586 } else { 2587 cdai->provsiz = device->rcap_len; 2588 if (device->rcap_len == 0) 2589 break; 2590 amt = device->rcap_len; 2591 if (cdai->provsiz > cdai->bufsiz) 2592 amt = cdai->bufsiz; 2593 memcpy(cdai->buf, device->rcap_buf, amt); 2594 } 2595 break; 2596 case CDAI_TYPE_EXT_INQ: 2597 /* 2598 * We fetch extended inquiry data during probe, if 2599 * available. We don't allow changing it. 2600 */ 2601 if (cdai->flags & CDAI_FLAG_STORE) 2602 return; 2603 cdai->provsiz = device->ext_inq_len; 2604 if (device->ext_inq_len == 0) 2605 break; 2606 amt = device->ext_inq_len; 2607 if (cdai->provsiz > cdai->bufsiz) 2608 amt = cdai->bufsiz; 2609 memcpy(cdai->buf, device->ext_inq, amt); 2610 break; 2611 default: 2612 return; 2613 } 2614 start_ccb->ccb_h.status = CAM_REQ_CMP; 2615 2616 if (cdai->flags & CDAI_FLAG_STORE) { 2617 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2618 (void *)(uintptr_t)cdai->buftype); 2619 } 2620} 2621 2622static void 2623scsi_action(union ccb *start_ccb) 2624{ 2625 2626 switch (start_ccb->ccb_h.func_code) { 2627 case XPT_SET_TRAN_SETTINGS: 2628 { 2629 scsi_set_transfer_settings(&start_ccb->cts, 2630 start_ccb->ccb_h.path, 2631 /*async_update*/FALSE); 2632 break; 2633 } 2634 case XPT_SCAN_BUS: 2635 case XPT_SCAN_TGT: 2636 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2637 break; 2638 case XPT_SCAN_LUN: 2639 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2640 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2641 start_ccb); 2642 break; 2643 case XPT_DEV_ADVINFO: 2644 { 2645 scsi_dev_advinfo(start_ccb); 2646 break; 2647 } 2648 default: 2649 xpt_action_default(start_ccb); 2650 break; 2651 } 2652} 2653 2654static void 2655scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2656 int async_update) 2657{ 2658 struct ccb_pathinq cpi; 2659 struct ccb_trans_settings cur_cts; 2660 struct ccb_trans_settings_scsi *scsi; 2661 struct ccb_trans_settings_scsi *cur_scsi; 2662 struct scsi_inquiry_data *inq_data; 2663 struct cam_ed *device; 2664 2665 if (path == NULL || (device = path->device) == NULL) { 2666 cts->ccb_h.status = CAM_PATH_INVALID; 2667 xpt_done((union ccb *)cts); 2668 return; 2669 } 2670 2671 if (cts->protocol == PROTO_UNKNOWN 2672 || cts->protocol == PROTO_UNSPECIFIED) { 2673 cts->protocol = device->protocol; 2674 cts->protocol_version = device->protocol_version; 2675 } 2676 2677 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2678 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2679 cts->protocol_version = device->protocol_version; 2680 2681 if (cts->protocol != device->protocol) { 2682 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2683 cts->protocol, device->protocol); 2684 cts->protocol = device->protocol; 2685 } 2686 2687 if (cts->protocol_version > device->protocol_version) { 2688 if (bootverbose) { 2689 xpt_print(path, "Down reving Protocol " 2690 "Version from %d to %d?\n", cts->protocol_version, 2691 device->protocol_version); 2692 } 2693 cts->protocol_version = device->protocol_version; 2694 } 2695 2696 if (cts->transport == XPORT_UNKNOWN 2697 || cts->transport == XPORT_UNSPECIFIED) { 2698 cts->transport = device->transport; 2699 cts->transport_version = device->transport_version; 2700 } 2701 2702 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2703 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2704 cts->transport_version = device->transport_version; 2705 2706 if (cts->transport != device->transport) { 2707 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2708 cts->transport, device->transport); 2709 cts->transport = device->transport; 2710 } 2711 2712 if (cts->transport_version > device->transport_version) { 2713 if (bootverbose) { 2714 xpt_print(path, "Down reving Transport " 2715 "Version from %d to %d?\n", cts->transport_version, 2716 device->transport_version); 2717 } 2718 cts->transport_version = device->transport_version; 2719 } 2720 2721 /* 2722 * Nothing more of interest to do unless 2723 * this is a device connected via the 2724 * SCSI protocol. 2725 */ 2726 if (cts->protocol != PROTO_SCSI) { 2727 if (async_update == FALSE) 2728 xpt_action_default((union ccb *)cts); 2729 return; 2730 } 2731 2732 inq_data = &device->inq_data; 2733 scsi = &cts->proto_specific.scsi; 2734 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2735 cpi.ccb_h.func_code = XPT_PATH_INQ; 2736 xpt_action((union ccb *)&cpi); 2737 2738 /* SCSI specific sanity checking */ 2739 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2740 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2741 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2742 || (device->mintags == 0)) { 2743 /* 2744 * Can't tag on hardware that doesn't support tags, 2745 * doesn't have it enabled, or has broken tag support. 2746 */ 2747 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2748 } 2749 2750 if (async_update == FALSE) { 2751 /* 2752 * Perform sanity checking against what the 2753 * controller and device can do. 2754 */ 2755 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2756 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2757 cur_cts.type = cts->type; 2758 xpt_action((union ccb *)&cur_cts); 2759 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2760 return; 2761 } 2762 cur_scsi = &cur_cts.proto_specific.scsi; 2763 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2764 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2765 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2766 } 2767 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2768 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2769 } 2770 2771 /* SPI specific sanity checking */ 2772 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2773 u_int spi3caps; 2774 struct ccb_trans_settings_spi *spi; 2775 struct ccb_trans_settings_spi *cur_spi; 2776 2777 spi = &cts->xport_specific.spi; 2778 2779 cur_spi = &cur_cts.xport_specific.spi; 2780 2781 /* Fill in any gaps in what the user gave us */ 2782 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2783 spi->sync_period = cur_spi->sync_period; 2784 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2785 spi->sync_period = 0; 2786 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2787 spi->sync_offset = cur_spi->sync_offset; 2788 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2789 spi->sync_offset = 0; 2790 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2791 spi->ppr_options = cur_spi->ppr_options; 2792 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2793 spi->ppr_options = 0; 2794 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2795 spi->bus_width = cur_spi->bus_width; 2796 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2797 spi->bus_width = 0; 2798 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2799 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2800 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2801 } 2802 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2803 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2804 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2805 && (inq_data->flags & SID_Sync) == 0 2806 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2807 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2808 /* Force async */ 2809 spi->sync_period = 0; 2810 spi->sync_offset = 0; 2811 } 2812 2813 switch (spi->bus_width) { 2814 case MSG_EXT_WDTR_BUS_32_BIT: 2815 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2816 || (inq_data->flags & SID_WBus32) != 0 2817 || cts->type == CTS_TYPE_USER_SETTINGS) 2818 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2819 break; 2820 /* Fall Through to 16-bit */ 2821 case MSG_EXT_WDTR_BUS_16_BIT: 2822 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2823 || (inq_data->flags & SID_WBus16) != 0 2824 || cts->type == CTS_TYPE_USER_SETTINGS) 2825 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2826 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2827 break; 2828 } 2829 /* Fall Through to 8-bit */ 2830 default: /* New bus width?? */ 2831 case MSG_EXT_WDTR_BUS_8_BIT: 2832 /* All targets can do this */ 2833 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2834 break; 2835 } 2836 2837 spi3caps = cpi.xport_specific.spi.ppr_options; 2838 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2839 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2840 spi3caps &= inq_data->spi3data; 2841 2842 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2843 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2844 2845 if ((spi3caps & SID_SPI_IUS) == 0) 2846 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2847 2848 if ((spi3caps & SID_SPI_QAS) == 0) 2849 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2850 2851 /* No SPI Transfer settings are allowed unless we are wide */ 2852 if (spi->bus_width == 0) 2853 spi->ppr_options = 0; 2854 2855 if ((spi->valid & CTS_SPI_VALID_DISC) 2856 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2857 /* 2858 * Can't tag queue without disconnection. 2859 */ 2860 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2861 scsi->valid |= CTS_SCSI_VALID_TQ; 2862 } 2863 2864 /* 2865 * If we are currently performing tagged transactions to 2866 * this device and want to change its negotiation parameters, 2867 * go non-tagged for a bit to give the controller a chance to 2868 * negotiate unhampered by tag messages. 2869 */ 2870 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2871 && (device->inq_flags & SID_CmdQue) != 0 2872 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2873 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2874 CTS_SPI_VALID_SYNC_OFFSET| 2875 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2876 scsi_toggle_tags(path); 2877 } 2878 2879 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2880 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2881 int device_tagenb; 2882 2883 /* 2884 * If we are transitioning from tags to no-tags or 2885 * vice-versa, we need to carefully freeze and restart 2886 * the queue so that we don't overlap tagged and non-tagged 2887 * commands. We also temporarily stop tags if there is 2888 * a change in transfer negotiation settings to allow 2889 * "tag-less" negotiation. 2890 */ 2891 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2892 || (device->inq_flags & SID_CmdQue) != 0) 2893 device_tagenb = TRUE; 2894 else 2895 device_tagenb = FALSE; 2896 2897 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2898 && device_tagenb == FALSE) 2899 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2900 && device_tagenb == TRUE)) { 2901 2902 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2903 /* 2904 * Delay change to use tags until after a 2905 * few commands have gone to this device so 2906 * the controller has time to perform transfer 2907 * negotiations without tagged messages getting 2908 * in the way. 2909 */ 2910 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2911 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2912 } else { 2913 xpt_stop_tags(path); 2914 } 2915 } 2916 } 2917 if (async_update == FALSE) 2918 xpt_action_default((union ccb *)cts); 2919} 2920 2921static void 2922scsi_toggle_tags(struct cam_path *path) 2923{ 2924 struct cam_ed *dev; 2925 2926 /* 2927 * Give controllers a chance to renegotiate 2928 * before starting tag operations. We 2929 * "toggle" tagged queuing off then on 2930 * which causes the tag enable command delay 2931 * counter to come into effect. 2932 */ 2933 dev = path->device; 2934 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2935 || ((dev->inq_flags & SID_CmdQue) != 0 2936 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2937 struct ccb_trans_settings cts; 2938 2939 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2940 cts.protocol = PROTO_SCSI; 2941 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2942 cts.transport = XPORT_UNSPECIFIED; 2943 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2944 cts.proto_specific.scsi.flags = 0; 2945 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2946 scsi_set_transfer_settings(&cts, path, 2947 /*async_update*/TRUE); 2948 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2949 scsi_set_transfer_settings(&cts, path, 2950 /*async_update*/TRUE); 2951 } 2952} 2953 2954/* 2955 * Handle any per-device event notifications that require action by the XPT. 2956 */ 2957static void 2958scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2959 struct cam_ed *device, void *async_arg) 2960{ 2961 cam_status status; 2962 struct cam_path newpath; 2963 2964 /* 2965 * We only need to handle events for real devices. 2966 */ 2967 if (target->target_id == CAM_TARGET_WILDCARD 2968 || device->lun_id == CAM_LUN_WILDCARD) 2969 return; 2970 2971 /* 2972 * We need our own path with wildcards expanded to 2973 * handle certain types of events. 2974 */ 2975 if ((async_code == AC_SENT_BDR) 2976 || (async_code == AC_BUS_RESET) 2977 || (async_code == AC_INQ_CHANGED)) 2978 status = xpt_compile_path(&newpath, NULL, 2979 bus->path_id, 2980 target->target_id, 2981 device->lun_id); 2982 else 2983 status = CAM_REQ_CMP_ERR; 2984 2985 if (status == CAM_REQ_CMP) { 2986 2987 /* 2988 * Allow transfer negotiation to occur in a 2989 * tag free environment and after settle delay. 2990 */ 2991 if (async_code == AC_SENT_BDR 2992 || async_code == AC_BUS_RESET) { 2993 cam_freeze_devq(&newpath); 2994 cam_release_devq(&newpath, 2995 RELSIM_RELEASE_AFTER_TIMEOUT, 2996 /*reduction*/0, 2997 /*timeout*/scsi_delay, 2998 /*getcount_only*/0); 2999 scsi_toggle_tags(&newpath); 3000 } 3001 3002 if (async_code == AC_INQ_CHANGED) { 3003 /* 3004 * We've sent a start unit command, or 3005 * something similar to a device that 3006 * may have caused its inquiry data to 3007 * change. So we re-scan the device to 3008 * refresh the inquiry data for it. 3009 */ 3010 scsi_scan_lun(newpath.periph, &newpath, 3011 CAM_EXPECT_INQ_CHANGE, NULL); 3012 } 3013 xpt_release_path(&newpath); 3014 } else if (async_code == AC_LOST_DEVICE && 3015 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3016 device->flags |= CAM_DEV_UNCONFIGURED; 3017 xpt_release_device(device); 3018 } else if (async_code == AC_TRANSFER_NEG) { 3019 struct ccb_trans_settings *settings; 3020 struct cam_path path; 3021 3022 settings = (struct ccb_trans_settings *)async_arg; 3023 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3024 device->lun_id); 3025 scsi_set_transfer_settings(settings, &path, 3026 /*async_update*/TRUE); 3027 xpt_release_path(&path); 3028 } 3029} 3030 3031static void 3032scsi_announce_periph(struct cam_periph *periph) 3033{ 3034 struct ccb_pathinq cpi; 3035 struct ccb_trans_settings cts; 3036 struct cam_path *path = periph->path; 3037 u_int speed; 3038 u_int freq; 3039 u_int mb; 3040 3041 cam_periph_assert(periph, MA_OWNED); 3042 3043 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 3044 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3045 cts.type = CTS_TYPE_CURRENT_SETTINGS; 3046 xpt_action((union ccb*)&cts); 3047 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3048 return; 3049 /* Ask the SIM for its base transfer speed */ 3050 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3051 cpi.ccb_h.func_code = XPT_PATH_INQ; 3052 xpt_action((union ccb *)&cpi); 3053 /* Report connection speed */ 3054 speed = cpi.base_transfer_speed; 3055 freq = 0; 3056 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3057 struct ccb_trans_settings_spi *spi = 3058 &cts.xport_specific.spi; 3059 3060 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3061 && spi->sync_offset != 0) { 3062 freq = scsi_calc_syncsrate(spi->sync_period); 3063 speed = freq; 3064 } 3065 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3066 speed *= (0x01 << spi->bus_width); 3067 } 3068 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3069 struct ccb_trans_settings_fc *fc = 3070 &cts.xport_specific.fc; 3071 3072 if (fc->valid & CTS_FC_VALID_SPEED) 3073 speed = fc->bitrate; 3074 } 3075 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3076 struct ccb_trans_settings_sas *sas = 3077 &cts.xport_specific.sas; 3078 3079 if (sas->valid & CTS_SAS_VALID_SPEED) 3080 speed = sas->bitrate; 3081 } 3082 mb = speed / 1000; 3083 if (mb > 0) 3084 printf("%s%d: %d.%03dMB/s transfers", 3085 periph->periph_name, periph->unit_number, 3086 mb, speed % 1000); 3087 else 3088 printf("%s%d: %dKB/s transfers", periph->periph_name, 3089 periph->unit_number, speed); 3090 /* Report additional information about SPI connections */ 3091 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3092 struct ccb_trans_settings_spi *spi; 3093 3094 spi = &cts.xport_specific.spi; 3095 if (freq != 0) { 3096 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3097 freq % 1000, 3098 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3099 ? " DT" : "", 3100 spi->sync_offset); 3101 } 3102 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3103 && spi->bus_width > 0) { 3104 if (freq != 0) { 3105 printf(", "); 3106 } else { 3107 printf(" ("); 3108 } 3109 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3110 } else if (freq != 0) { 3111 printf(")"); 3112 } 3113 } 3114 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3115 struct ccb_trans_settings_fc *fc; 3116 3117 fc = &cts.xport_specific.fc; 3118 if (fc->valid & CTS_FC_VALID_WWNN) 3119 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3120 if (fc->valid & CTS_FC_VALID_WWPN) 3121 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3122 if (fc->valid & CTS_FC_VALID_PORT) 3123 printf(" PortID 0x%x", fc->port); 3124 } 3125 printf("\n"); 3126} 3127 3128static void 3129scsi_proto_announce(struct cam_ed *device) 3130{ 3131 scsi_print_inquiry(&device->inq_data); 3132} 3133 3134static void 3135scsi_proto_denounce(struct cam_ed *device) 3136{ 3137 scsi_print_inquiry_short(&device->inq_data); 3138} 3139 3140static void 3141scsi_proto_debug_out(union ccb *ccb) 3142{ 3143 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3144 struct cam_ed *device; 3145 3146 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3147 return; 3148 3149 device = ccb->ccb_h.path->device; 3150 CAM_DEBUG(ccb->ccb_h.path, 3151 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3152 scsi_op_desc(ccb->csio.cdb_io.cdb_bytes[0], &device->inq_data), 3153 scsi_cdb_string(ccb->csio.cdb_io.cdb_bytes, cdb_str, sizeof(cdb_str)))); 3154} 3155