scsi_xpt.c revision 350783
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 350783 2019-08-08 21:30:44Z 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_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 701 cpi.ccb_h.func_code = XPT_PATH_INQ; 702 xpt_action((union ccb *)&cpi); 703 704 /* 705 * If a device has gone away and another device, or the same one, 706 * is back in the same place, it should have a unit attention 707 * condition pending. It will not report the unit attention in 708 * response to an inquiry, which may leave invalid transfer 709 * negotiations in effect. The TUR will reveal the unit attention 710 * condition. Only send the TUR for lun 0, since some devices 711 * will get confused by commands other than inquiry to non-existent 712 * luns. If you think a device has gone away start your scan from 713 * lun 0. This will insure that any bogus transfer settings are 714 * invalidated. 715 * 716 * If we haven't seen the device before and the controller supports 717 * some kind of transfer negotiation, negotiate with the first 718 * sent command if no bus reset was performed at startup. This 719 * ensures that the device is not confused by transfer negotiation 720 * settings left over by loader or BIOS action. 721 */ 722 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 723 && (ccb->ccb_h.target_lun == 0)) { 724 PROBE_SET_ACTION(softc, PROBE_TUR); 725 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 726 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 727 proberequestdefaultnegotiation(periph); 728 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 729 } else { 730 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 731 } 732 733 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 734 softc->flags |= PROBE_NO_ANNOUNCE; 735 else 736 softc->flags &= ~PROBE_NO_ANNOUNCE; 737 738 if (cpi.hba_misc & PIM_EXTLUNS) 739 softc->flags |= PROBE_EXTLUN; 740 else 741 softc->flags &= ~PROBE_EXTLUN; 742 743 xpt_schedule(periph, CAM_PRIORITY_XPT); 744} 745 746static void 747probestart(struct cam_periph *periph, union ccb *start_ccb) 748{ 749 /* Probe the device that our peripheral driver points to */ 750 struct ccb_scsiio *csio; 751 probe_softc *softc; 752 753 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 754 755 softc = (probe_softc *)periph->softc; 756 csio = &start_ccb->csio; 757again: 758 759 switch (softc->action) { 760 case PROBE_TUR: 761 case PROBE_TUR_FOR_NEGOTIATION: 762 case PROBE_DV_EXIT: 763 { 764 scsi_test_unit_ready(csio, 765 /*retries*/4, 766 probedone, 767 MSG_SIMPLE_Q_TAG, 768 SSD_FULL_SIZE, 769 /*timeout*/60000); 770 break; 771 } 772 case PROBE_INQUIRY: 773 case PROBE_FULL_INQUIRY: 774 case PROBE_INQUIRY_BASIC_DV1: 775 case PROBE_INQUIRY_BASIC_DV2: 776 { 777 u_int inquiry_len; 778 struct scsi_inquiry_data *inq_buf; 779 780 inq_buf = &periph->path->device->inq_data; 781 782 /* 783 * If the device is currently configured, we calculate an 784 * MD5 checksum of the inquiry data, and if the serial number 785 * length is greater than 0, add the serial number data 786 * into the checksum as well. Once the inquiry and the 787 * serial number check finish, we attempt to figure out 788 * whether we still have the same device. 789 */ 790 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 791 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 792 793 MD5Init(&softc->context); 794 MD5Update(&softc->context, (unsigned char *)inq_buf, 795 sizeof(struct scsi_inquiry_data)); 796 softc->flags |= PROBE_INQUIRY_CKSUM; 797 if (periph->path->device->serial_num_len > 0) { 798 MD5Update(&softc->context, 799 periph->path->device->serial_num, 800 periph->path->device->serial_num_len); 801 softc->flags |= PROBE_SERIAL_CKSUM; 802 } 803 MD5Final(softc->digest, &softc->context); 804 } 805 806 if (softc->action == PROBE_INQUIRY) 807 inquiry_len = SHORT_INQUIRY_LENGTH; 808 else 809 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 810 811 /* 812 * Some parallel SCSI devices fail to send an 813 * ignore wide residue message when dealing with 814 * odd length inquiry requests. Round up to be 815 * safe. 816 */ 817 inquiry_len = roundup2(inquiry_len, 2); 818 819 if (softc->action == PROBE_INQUIRY_BASIC_DV1 820 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 821 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 822 } 823 if (inq_buf == NULL) { 824 xpt_print(periph->path, "malloc failure- skipping Basic" 825 "Domain Validation\n"); 826 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 827 scsi_test_unit_ready(csio, 828 /*retries*/4, 829 probedone, 830 MSG_SIMPLE_Q_TAG, 831 SSD_FULL_SIZE, 832 /*timeout*/60000); 833 break; 834 } 835 scsi_inquiry(csio, 836 /*retries*/4, 837 probedone, 838 MSG_SIMPLE_Q_TAG, 839 (u_int8_t *)inq_buf, 840 inquiry_len, 841 /*evpd*/FALSE, 842 /*page_code*/0, 843 SSD_MIN_SIZE, 844 /*timeout*/60 * 1000); 845 break; 846 } 847 case PROBE_REPORT_LUNS: 848 { 849 void *rp; 850 851 rp = malloc(periph->path->target->rpl_size, 852 M_CAMXPT, M_NOWAIT | M_ZERO); 853 if (rp == NULL) { 854 struct scsi_inquiry_data *inq_buf; 855 inq_buf = &periph->path->device->inq_data; 856 xpt_print(periph->path, 857 "Unable to alloc report luns storage\n"); 858 if (INQ_DATA_TQ_ENABLED(inq_buf)) 859 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 860 else 861 PROBE_SET_ACTION(softc, 862 PROBE_SUPPORTED_VPD_LIST); 863 goto again; 864 } 865 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 866 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 867 SSD_FULL_SIZE, 60000); break; 868 break; 869 } 870 case PROBE_MODE_SENSE: 871 { 872 void *mode_buf; 873 int mode_buf_len; 874 875 mode_buf_len = sizeof(struct scsi_mode_header_6) 876 + sizeof(struct scsi_mode_blk_desc) 877 + sizeof(struct scsi_control_page); 878 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 879 if (mode_buf != NULL) { 880 scsi_mode_sense(csio, 881 /*retries*/4, 882 probedone, 883 MSG_SIMPLE_Q_TAG, 884 /*dbd*/FALSE, 885 SMS_PAGE_CTRL_CURRENT, 886 SMS_CONTROL_MODE_PAGE, 887 mode_buf, 888 mode_buf_len, 889 SSD_FULL_SIZE, 890 /*timeout*/60000); 891 break; 892 } 893 xpt_print(periph->path, "Unable to mode sense control page - " 894 "malloc failure\n"); 895 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 896 } 897 /* FALLTHROUGH */ 898 case PROBE_SUPPORTED_VPD_LIST: 899 { 900 struct scsi_vpd_supported_page_list *vpd_list; 901 struct cam_ed *device; 902 903 vpd_list = NULL; 904 device = periph->path->device; 905 906 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 907 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 908 M_NOWAIT | M_ZERO); 909 910 if (vpd_list != NULL) { 911 scsi_inquiry(csio, 912 /*retries*/4, 913 probedone, 914 MSG_SIMPLE_Q_TAG, 915 (u_int8_t *)vpd_list, 916 sizeof(*vpd_list), 917 /*evpd*/TRUE, 918 SVPD_SUPPORTED_PAGE_LIST, 919 SSD_MIN_SIZE, 920 /*timeout*/60 * 1000); 921 break; 922 } 923done: 924 /* 925 * We'll have to do without, let our probedone 926 * routine finish up for us. 927 */ 928 start_ccb->csio.data_ptr = NULL; 929 cam_freeze_devq(periph->path); 930 cam_periph_doacquire(periph); 931 probedone(periph, start_ccb); 932 return; 933 } 934 case PROBE_DEVICE_ID: 935 { 936 struct scsi_vpd_device_id *devid; 937 938 devid = NULL; 939 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 940 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 941 M_NOWAIT | M_ZERO); 942 943 if (devid != NULL) { 944 scsi_inquiry(csio, 945 /*retries*/4, 946 probedone, 947 MSG_SIMPLE_Q_TAG, 948 (uint8_t *)devid, 949 SVPD_DEVICE_ID_MAX_SIZE, 950 /*evpd*/TRUE, 951 SVPD_DEVICE_ID, 952 SSD_MIN_SIZE, 953 /*timeout*/60 * 1000); 954 break; 955 } 956 goto done; 957 } 958 case PROBE_EXTENDED_INQUIRY: 959 { 960 struct scsi_vpd_extended_inquiry_data *ext_inq; 961 962 ext_inq = NULL; 963 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 964 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 965 M_NOWAIT | M_ZERO); 966 967 if (ext_inq != NULL) { 968 scsi_inquiry(csio, 969 /*retries*/4, 970 probedone, 971 MSG_SIMPLE_Q_TAG, 972 (uint8_t *)ext_inq, 973 sizeof(*ext_inq), 974 /*evpd*/TRUE, 975 SVPD_EXTENDED_INQUIRY_DATA, 976 SSD_MIN_SIZE, 977 /*timeout*/60 * 1000); 978 break; 979 } 980 /* 981 * We'll have to do without, let our probedone 982 * routine finish up for us. 983 */ 984 goto done; 985 } 986 case PROBE_SERIAL_NUM: 987 { 988 struct scsi_vpd_unit_serial_number *serial_buf; 989 struct cam_ed* device; 990 991 serial_buf = NULL; 992 device = periph->path->device; 993 if (device->serial_num != NULL) { 994 free(device->serial_num, M_CAMXPT); 995 device->serial_num = NULL; 996 device->serial_num_len = 0; 997 } 998 999 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 1000 serial_buf = (struct scsi_vpd_unit_serial_number *) 1001 malloc(sizeof(*serial_buf), M_CAMXPT, 1002 M_NOWAIT|M_ZERO); 1003 1004 if (serial_buf != NULL) { 1005 scsi_inquiry(csio, 1006 /*retries*/4, 1007 probedone, 1008 MSG_SIMPLE_Q_TAG, 1009 (u_int8_t *)serial_buf, 1010 sizeof(*serial_buf), 1011 /*evpd*/TRUE, 1012 SVPD_UNIT_SERIAL_NUMBER, 1013 SSD_MIN_SIZE, 1014 /*timeout*/60 * 1000); 1015 break; 1016 } 1017 goto done; 1018 } 1019 default: 1020 panic("probestart: invalid action state 0x%x\n", softc->action); 1021 } 1022 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1023 cam_periph_doacquire(periph); 1024 xpt_action(start_ccb); 1025} 1026 1027static void 1028proberequestdefaultnegotiation(struct cam_periph *periph) 1029{ 1030 struct ccb_trans_settings cts; 1031 1032 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1033 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1034 cts.type = CTS_TYPE_USER_SETTINGS; 1035 xpt_action((union ccb *)&cts); 1036 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1037 return; 1038 } 1039 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1040 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1041 xpt_action((union ccb *)&cts); 1042} 1043 1044/* 1045 * Backoff Negotiation Code- only pertinent for SPI devices. 1046 */ 1047static int 1048proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1049{ 1050 struct ccb_trans_settings cts; 1051 struct ccb_trans_settings_spi *spi; 1052 1053 memset(&cts, 0, sizeof (cts)); 1054 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1055 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1056 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1057 xpt_action((union ccb *)&cts); 1058 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1059 if (bootverbose) { 1060 xpt_print(periph->path, 1061 "failed to get current device settings\n"); 1062 } 1063 return (0); 1064 } 1065 if (cts.transport != XPORT_SPI) { 1066 if (bootverbose) { 1067 xpt_print(periph->path, "not SPI transport\n"); 1068 } 1069 return (0); 1070 } 1071 spi = &cts.xport_specific.spi; 1072 1073 /* 1074 * We cannot renegotiate sync rate if we don't have one. 1075 */ 1076 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1077 if (bootverbose) { 1078 xpt_print(periph->path, "no sync rate known\n"); 1079 } 1080 return (0); 1081 } 1082 1083 /* 1084 * We'll assert that we don't have to touch PPR options- the 1085 * SIM will see what we do with period and offset and adjust 1086 * the PPR options as appropriate. 1087 */ 1088 1089 /* 1090 * A sync rate with unknown or zero offset is nonsensical. 1091 * A sync period of zero means Async. 1092 */ 1093 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1094 || spi->sync_offset == 0 || spi->sync_period == 0) { 1095 if (bootverbose) { 1096 xpt_print(periph->path, "no sync rate available\n"); 1097 } 1098 return (0); 1099 } 1100 1101 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1102 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1103 ("hit async: giving up on DV\n")); 1104 return (0); 1105 } 1106 1107 1108 /* 1109 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1110 * We don't try to remember 'last' settings to see if the SIM actually 1111 * gets into the speed we want to set. We check on the SIM telling 1112 * us that a requested speed is bad, but otherwise don't try and 1113 * check the speed due to the asynchronous and handshake nature 1114 * of speed setting. 1115 */ 1116 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1117 for (;;) { 1118 spi->sync_period++; 1119 if (spi->sync_period >= 0xf) { 1120 spi->sync_period = 0; 1121 spi->sync_offset = 0; 1122 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1123 ("setting to async for DV\n")); 1124 /* 1125 * Once we hit async, we don't want to try 1126 * any more settings. 1127 */ 1128 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1129 } else if (bootverbose) { 1130 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1131 ("DV: period 0x%x\n", spi->sync_period)); 1132 printf("setting period to 0x%x\n", spi->sync_period); 1133 } 1134 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1135 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1136 xpt_action((union ccb *)&cts); 1137 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1138 break; 1139 } 1140 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1141 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1142 if (spi->sync_period == 0) { 1143 return (0); 1144 } 1145 } 1146 return (1); 1147} 1148 1149#define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1150 1151static void 1152probedone(struct cam_periph *periph, union ccb *done_ccb) 1153{ 1154 probe_softc *softc; 1155 struct cam_path *path; 1156 struct scsi_inquiry_data *inq_buf; 1157 u_int32_t priority; 1158 1159 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1160 1161 softc = (probe_softc *)periph->softc; 1162 path = done_ccb->ccb_h.path; 1163 priority = done_ccb->ccb_h.pinfo.priority; 1164 cam_periph_assert(periph, MA_OWNED); 1165 1166 switch (softc->action) { 1167 case PROBE_TUR: 1168 { 1169 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1170 1171 if (cam_periph_error(done_ccb, 0, 1172 SF_NO_PRINT, NULL) == ERESTART) { 1173outr: 1174 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1175 cam_release_devq(path, 0, 0, 0, FALSE); 1176 return; 1177 } 1178 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1179 /* Don't wedge the queue */ 1180 xpt_release_devq(done_ccb->ccb_h.path, 1181 /*count*/1, 1182 /*run_queue*/TRUE); 1183 } 1184 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1185 xpt_release_ccb(done_ccb); 1186 xpt_schedule(periph, priority); 1187out: 1188 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1189 cam_release_devq(path, 0, 0, 0, FALSE); 1190 cam_periph_release_locked(periph); 1191 return; 1192 } 1193 case PROBE_INQUIRY: 1194 case PROBE_FULL_INQUIRY: 1195 { 1196 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1197 u_int8_t periph_qual; 1198 1199 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1200 scsi_find_quirk(path->device); 1201 inq_buf = &path->device->inq_data; 1202 1203 periph_qual = SID_QUAL(inq_buf); 1204 1205 if (periph_qual == SID_QUAL_LU_CONNECTED || 1206 periph_qual == SID_QUAL_LU_OFFLINE) { 1207 u_int8_t len; 1208 1209 /* 1210 * We conservatively request only 1211 * SHORT_INQUIRY_LEN bytes of inquiry 1212 * information during our first try 1213 * at sending an INQUIRY. If the device 1214 * has more information to give, 1215 * perform a second request specifying 1216 * the amount of information the device 1217 * is willing to give. 1218 */ 1219 len = inq_buf->additional_length 1220 + offsetof(struct scsi_inquiry_data, 1221 additional_length) + 1; 1222 if (softc->action == PROBE_INQUIRY 1223 && len > SHORT_INQUIRY_LENGTH) { 1224 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1225 xpt_release_ccb(done_ccb); 1226 xpt_schedule(periph, priority); 1227 goto out; 1228 } 1229 1230 scsi_devise_transport(path); 1231 1232 if (path->device->lun_id == 0 && 1233 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1234 (SCSI_QUIRK(path->device)->quirks & 1235 CAM_QUIRK_NORPTLUNS) == 0) { 1236 PROBE_SET_ACTION(softc, 1237 PROBE_REPORT_LUNS); 1238 /* 1239 * Start with room for *one* lun. 1240 */ 1241 periph->path->target->rpl_size = 16; 1242 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1243 PROBE_SET_ACTION(softc, 1244 PROBE_MODE_SENSE); 1245 else 1246 PROBE_SET_ACTION(softc, 1247 PROBE_SUPPORTED_VPD_LIST); 1248 1249 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1250 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1251 xpt_acquire_device(path->device); 1252 } 1253 xpt_release_ccb(done_ccb); 1254 xpt_schedule(periph, priority); 1255 goto out; 1256 } else if (path->device->lun_id == 0 && 1257 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1258 (SCSI_QUIRK(path->device)->quirks & 1259 CAM_QUIRK_NORPTLUNS) == 0) { 1260 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1261 periph->path->target->rpl_size = 16; 1262 xpt_release_ccb(done_ccb); 1263 xpt_schedule(periph, priority); 1264 goto out; 1265 } 1266 } else if (cam_periph_error(done_ccb, 0, 1267 done_ccb->ccb_h.target_lun > 0 1268 ? SF_RETRY_UA|SF_QUIET_IR 1269 : SF_RETRY_UA, 1270 &softc->saved_ccb) == ERESTART) { 1271 goto outr; 1272 } else { 1273 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1274 /* Don't wedge the queue */ 1275 xpt_release_devq(done_ccb->ccb_h.path, 1276 /*count*/1, /*run_queue*/TRUE); 1277 } 1278 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1279 } 1280 /* 1281 * If we get to this point, we got an error status back 1282 * from the inquiry and the error status doesn't require 1283 * automatically retrying the command. Therefore, the 1284 * inquiry failed. If we had inquiry information before 1285 * for this device, but this latest inquiry command failed, 1286 * the device has probably gone away. If this device isn't 1287 * already marked unconfigured, notify the peripheral 1288 * drivers that this device is no more. 1289 */ 1290 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1291 /* Send the async notification. */ 1292 xpt_async(AC_LOST_DEVICE, path, NULL); 1293 PROBE_SET_ACTION(softc, PROBE_INVALID); 1294 1295 xpt_release_ccb(done_ccb); 1296 break; 1297 } 1298 case PROBE_REPORT_LUNS: 1299 { 1300 struct ccb_scsiio *csio; 1301 struct scsi_report_luns_data *lp; 1302 u_int nlun, maxlun; 1303 1304 csio = &done_ccb->csio; 1305 1306 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1307 nlun = scsi_4btoul(lp->length) / 8; 1308 maxlun = (csio->dxfer_len / 8) - 1; 1309 1310 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1311 if (cam_periph_error(done_ccb, 0, 1312 done_ccb->ccb_h.target_lun > 0 ? 1313 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1314 &softc->saved_ccb) == ERESTART) { 1315 goto outr; 1316 } 1317 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1318 xpt_release_devq(done_ccb->ccb_h.path, 1, 1319 TRUE); 1320 } 1321 free(lp, M_CAMXPT); 1322 lp = NULL; 1323 } else if (nlun > maxlun) { 1324 /* 1325 * Reallocate and retry to cover all luns 1326 */ 1327 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1328 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1329 nlun)); 1330 free(lp, M_CAMXPT); 1331 path->target->rpl_size = (nlun << 3) + 8; 1332 xpt_release_ccb(done_ccb); 1333 xpt_schedule(periph, priority); 1334 goto out; 1335 } else if (nlun == 0) { 1336 /* 1337 * If there don't appear to be any luns, bail. 1338 */ 1339 free(lp, M_CAMXPT); 1340 lp = NULL; 1341 } else { 1342 lun_id_t lun; 1343 int idx; 1344 1345 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1346 ("Probe: %u lun(s) reported\n", nlun)); 1347 1348 CAM_GET_LUN(lp, 0, lun); 1349 /* 1350 * If the first lun is not lun 0, then either there 1351 * is no lun 0 in the list, or the list is unsorted. 1352 */ 1353 if (lun != 0) { 1354 for (idx = 0; idx < nlun; idx++) { 1355 CAM_GET_LUN(lp, idx, lun); 1356 if (lun == 0) { 1357 break; 1358 } 1359 } 1360 if (idx != nlun) { 1361 uint8_t tlun[8]; 1362 memcpy(tlun, 1363 lp->luns[0].lundata, 8); 1364 memcpy(lp->luns[0].lundata, 1365 lp->luns[idx].lundata, 8); 1366 memcpy(lp->luns[idx].lundata, 1367 tlun, 8); 1368 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1369 ("lun 0 in position %u\n", idx)); 1370 } 1371 } 1372 /* 1373 * If we have an old lun list, We can either 1374 * retest luns that appear to have been dropped, 1375 * or just nuke them. We'll opt for the latter. 1376 * This function will also install the new list 1377 * in the target structure. 1378 */ 1379 probe_purge_old(path, lp, softc->flags); 1380 lp = NULL; 1381 } 1382 /* The processing above should either exit via a `goto 1383 * out` or leave the `lp` variable `NULL` and (if 1384 * applicable) `free()` the storage to which it had 1385 * pointed. Assert here that is the case. 1386 */ 1387 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1388 inq_buf = &path->device->inq_data; 1389 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1390 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1391 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1392 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1393 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1394 else 1395 PROBE_SET_ACTION(softc, 1396 PROBE_SUPPORTED_VPD_LIST); 1397 xpt_release_ccb(done_ccb); 1398 xpt_schedule(periph, priority); 1399 goto out; 1400 } 1401 PROBE_SET_ACTION(softc, PROBE_INVALID); 1402 xpt_release_ccb(done_ccb); 1403 break; 1404 } 1405 case PROBE_MODE_SENSE: 1406 { 1407 struct ccb_scsiio *csio; 1408 struct scsi_mode_header_6 *mode_hdr; 1409 1410 csio = &done_ccb->csio; 1411 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1412 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1413 struct scsi_control_page *page; 1414 u_int8_t *offset; 1415 1416 offset = ((u_int8_t *)&mode_hdr[1]) 1417 + mode_hdr->blk_desc_len; 1418 page = (struct scsi_control_page *)offset; 1419 path->device->queue_flags = page->queue_flags; 1420 } else if (cam_periph_error(done_ccb, 0, 1421 SF_RETRY_UA|SF_NO_PRINT, 1422 &softc->saved_ccb) == ERESTART) { 1423 goto outr; 1424 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1425 /* Don't wedge the queue */ 1426 xpt_release_devq(done_ccb->ccb_h.path, 1427 /*count*/1, /*run_queue*/TRUE); 1428 } 1429 xpt_release_ccb(done_ccb); 1430 free(mode_hdr, M_CAMXPT); 1431 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1432 xpt_schedule(periph, priority); 1433 goto out; 1434 } 1435 case PROBE_SUPPORTED_VPD_LIST: 1436 { 1437 struct ccb_scsiio *csio; 1438 struct scsi_vpd_supported_page_list *page_list; 1439 1440 csio = &done_ccb->csio; 1441 page_list = 1442 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1443 1444 if (path->device->supported_vpds != NULL) { 1445 free(path->device->supported_vpds, M_CAMXPT); 1446 path->device->supported_vpds = NULL; 1447 path->device->supported_vpds_len = 0; 1448 } 1449 1450 if (page_list == NULL) { 1451 /* 1452 * Don't process the command as it was never sent 1453 */ 1454 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1455 /* Got vpd list */ 1456 path->device->supported_vpds_len = page_list->length + 1457 SVPD_SUPPORTED_PAGES_HDR_LEN; 1458 path->device->supported_vpds = (uint8_t *)page_list; 1459 xpt_release_ccb(done_ccb); 1460 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1461 xpt_schedule(periph, priority); 1462 goto out; 1463 } else if (cam_periph_error(done_ccb, 0, 1464 SF_RETRY_UA|SF_NO_PRINT, 1465 &softc->saved_ccb) == ERESTART) { 1466 goto outr; 1467 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1468 /* Don't wedge the queue */ 1469 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1470 /*run_queue*/TRUE); 1471 } 1472 1473 if (page_list) 1474 free(page_list, M_CAMXPT); 1475 /* No VPDs available, skip to device check. */ 1476 csio->data_ptr = NULL; 1477 goto probe_device_check; 1478 } 1479 case PROBE_DEVICE_ID: 1480 { 1481 struct scsi_vpd_device_id *devid; 1482 struct ccb_scsiio *csio; 1483 uint32_t length = 0; 1484 1485 csio = &done_ccb->csio; 1486 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1487 1488 /* Clean up from previous instance of this device */ 1489 if (path->device->device_id != NULL) { 1490 path->device->device_id_len = 0; 1491 free(path->device->device_id, M_CAMXPT); 1492 path->device->device_id = NULL; 1493 } 1494 1495 if (devid == NULL) { 1496 /* Don't process the command as it was never sent */ 1497 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1498 length = scsi_2btoul(devid->length); 1499 if (length != 0) { 1500 /* 1501 * NB: device_id_len is actual response 1502 * size, not buffer size. 1503 */ 1504 path->device->device_id_len = length + 1505 SVPD_DEVICE_ID_HDR_LEN; 1506 path->device->device_id = (uint8_t *)devid; 1507 } 1508 } else if (cam_periph_error(done_ccb, 0, 1509 SF_RETRY_UA, 1510 &softc->saved_ccb) == ERESTART) { 1511 goto outr; 1512 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1513 /* Don't wedge the queue */ 1514 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1515 /*run_queue*/TRUE); 1516 } 1517 1518 /* Free the device id space if we don't use it */ 1519 if (devid && length == 0) 1520 free(devid, M_CAMXPT); 1521 xpt_release_ccb(done_ccb); 1522 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1523 xpt_schedule(periph, priority); 1524 goto out; 1525 } 1526 case PROBE_EXTENDED_INQUIRY: { 1527 struct scsi_vpd_extended_inquiry_data *ext_inq; 1528 struct ccb_scsiio *csio; 1529 int32_t length = 0; 1530 1531 csio = &done_ccb->csio; 1532 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1533 csio->data_ptr; 1534 if (path->device->ext_inq != NULL) { 1535 path->device->ext_inq_len = 0; 1536 free(path->device->ext_inq, M_CAMXPT); 1537 path->device->ext_inq = NULL; 1538 } 1539 1540 if (ext_inq == NULL) { 1541 /* Don't process the command as it was never sent */ 1542 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1543 length = scsi_2btoul(ext_inq->page_length) + 1544 __offsetof(struct scsi_vpd_extended_inquiry_data, 1545 flags1); 1546 length = min(length, sizeof(*ext_inq)); 1547 length -= csio->resid; 1548 if (length > 0) { 1549 path->device->ext_inq_len = length; 1550 path->device->ext_inq = (uint8_t *)ext_inq; 1551 } 1552 } else if (cam_periph_error(done_ccb, 0, 1553 SF_RETRY_UA, 1554 &softc->saved_ccb) == ERESTART) { 1555 goto outr; 1556 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1557 /* Don't wedge the queue */ 1558 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1559 /*run_queue*/TRUE); 1560 } 1561 1562 /* Free the device id space if we don't use it */ 1563 if (ext_inq && length <= 0) 1564 free(ext_inq, M_CAMXPT); 1565 xpt_release_ccb(done_ccb); 1566 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1567 xpt_schedule(periph, priority); 1568 goto out; 1569 } 1570 1571probe_device_check: 1572 case PROBE_SERIAL_NUM: 1573 { 1574 struct ccb_scsiio *csio; 1575 struct scsi_vpd_unit_serial_number *serial_buf; 1576 u_int32_t priority; 1577 int changed; 1578 int have_serialnum; 1579 1580 changed = 1; 1581 have_serialnum = 0; 1582 csio = &done_ccb->csio; 1583 priority = done_ccb->ccb_h.pinfo.priority; 1584 serial_buf = 1585 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1586 1587 if (serial_buf == NULL) { 1588 /* 1589 * Don't process the command as it was never sent 1590 */ 1591 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1592 && (serial_buf->length > 0)) { 1593 1594 have_serialnum = 1; 1595 path->device->serial_num = 1596 (u_int8_t *)malloc((serial_buf->length + 1), 1597 M_CAMXPT, M_NOWAIT); 1598 if (path->device->serial_num != NULL) { 1599 int start, slen; 1600 1601 start = strspn(serial_buf->serial_num, " "); 1602 slen = serial_buf->length - start; 1603 if (slen <= 0) { 1604 /* 1605 * SPC5r05 says that an all-space serial 1606 * number means no product serial number 1607 * is available 1608 */ 1609 slen = 0; 1610 } 1611 memcpy(path->device->serial_num, 1612 &serial_buf->serial_num[start], slen); 1613 path->device->serial_num_len = slen; 1614 path->device->serial_num[slen] = '\0'; 1615 } 1616 } else if (cam_periph_error(done_ccb, 0, 1617 SF_RETRY_UA|SF_NO_PRINT, 1618 &softc->saved_ccb) == ERESTART) { 1619 goto outr; 1620 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1621 /* Don't wedge the queue */ 1622 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1623 /*run_queue*/TRUE); 1624 } 1625 1626 /* 1627 * Let's see if we have seen this device before. 1628 */ 1629 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1630 MD5_CTX context; 1631 u_int8_t digest[16]; 1632 1633 MD5Init(&context); 1634 1635 MD5Update(&context, 1636 (unsigned char *)&path->device->inq_data, 1637 sizeof(struct scsi_inquiry_data)); 1638 1639 if (have_serialnum) 1640 MD5Update(&context, path->device->serial_num, 1641 path->device->serial_num_len); 1642 1643 MD5Final(digest, &context); 1644 if (bcmp(softc->digest, digest, 16) == 0) 1645 changed = 0; 1646 1647 /* 1648 * XXX Do we need to do a TUR in order to ensure 1649 * that the device really hasn't changed??? 1650 */ 1651 if ((changed != 0) 1652 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1653 xpt_async(AC_LOST_DEVICE, path, NULL); 1654 } 1655 if (serial_buf != NULL) 1656 free(serial_buf, M_CAMXPT); 1657 1658 if (changed != 0) { 1659 /* 1660 * Now that we have all the necessary 1661 * information to safely perform transfer 1662 * negotiations... Controllers don't perform 1663 * any negotiation or tagged queuing until 1664 * after the first XPT_SET_TRAN_SETTINGS ccb is 1665 * received. So, on a new device, just retrieve 1666 * the user settings, and set them as the current 1667 * settings to set the device up. 1668 */ 1669 proberequestdefaultnegotiation(periph); 1670 xpt_release_ccb(done_ccb); 1671 1672 /* 1673 * Perform a TUR to allow the controller to 1674 * perform any necessary transfer negotiation. 1675 */ 1676 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1677 xpt_schedule(periph, priority); 1678 goto out; 1679 } 1680 xpt_release_ccb(done_ccb); 1681 break; 1682 } 1683 case PROBE_TUR_FOR_NEGOTIATION: 1684 case PROBE_DV_EXIT: 1685 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1686 cam_periph_error(done_ccb, 0, 1687 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1688 } 1689 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1690 /* Don't wedge the queue */ 1691 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1692 /*run_queue*/TRUE); 1693 } 1694 /* 1695 * Do Domain Validation for lun 0 on devices that claim 1696 * to support Synchronous Transfer modes. 1697 */ 1698 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1699 && done_ccb->ccb_h.target_lun == 0 1700 && (path->device->inq_data.flags & SID_Sync) != 0 1701 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1702 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1703 ("Begin Domain Validation\n")); 1704 path->device->flags |= CAM_DEV_IN_DV; 1705 xpt_release_ccb(done_ccb); 1706 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1707 xpt_schedule(periph, priority); 1708 goto out; 1709 } 1710 if (softc->action == PROBE_DV_EXIT) { 1711 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1712 ("Leave Domain Validation\n")); 1713 } 1714 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1715 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1716 xpt_acquire_device(path->device); 1717 } 1718 path->device->flags &= 1719 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1720 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1721 /* Inform the XPT that a new device has been found */ 1722 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1723 xpt_action(done_ccb); 1724 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1725 done_ccb); 1726 } 1727 PROBE_SET_ACTION(softc, PROBE_DONE); 1728 xpt_release_ccb(done_ccb); 1729 break; 1730 case PROBE_INQUIRY_BASIC_DV1: 1731 case PROBE_INQUIRY_BASIC_DV2: 1732 { 1733 struct scsi_inquiry_data *nbuf; 1734 struct ccb_scsiio *csio; 1735 1736 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1737 cam_periph_error(done_ccb, 0, 1738 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1739 } 1740 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1741 /* Don't wedge the queue */ 1742 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1743 /*run_queue*/TRUE); 1744 } 1745 csio = &done_ccb->csio; 1746 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1747 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1748 xpt_print(path, 1749 "inquiry data fails comparison at DV%d step\n", 1750 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1751 if (proberequestbackoff(periph, path->device)) { 1752 path->device->flags &= ~CAM_DEV_IN_DV; 1753 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1754 } else { 1755 /* give up */ 1756 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1757 } 1758 free(nbuf, M_CAMXPT); 1759 xpt_release_ccb(done_ccb); 1760 xpt_schedule(periph, priority); 1761 goto out; 1762 } 1763 free(nbuf, M_CAMXPT); 1764 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1765 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1766 xpt_release_ccb(done_ccb); 1767 xpt_schedule(periph, priority); 1768 goto out; 1769 } 1770 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1771 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1772 ("Leave Domain Validation Successfully\n")); 1773 } 1774 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1775 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1776 xpt_acquire_device(path->device); 1777 } 1778 path->device->flags &= 1779 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1780 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1781 /* Inform the XPT that a new device has been found */ 1782 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1783 xpt_action(done_ccb); 1784 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1785 done_ccb); 1786 } 1787 PROBE_SET_ACTION(softc, PROBE_DONE); 1788 xpt_release_ccb(done_ccb); 1789 break; 1790 } 1791 default: 1792 panic("probedone: invalid action state 0x%x\n", softc->action); 1793 } 1794 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1795 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1796 done_ccb->ccb_h.status = CAM_REQ_CMP; 1797 xpt_done(done_ccb); 1798 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1799 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1800 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1801 cam_release_devq(path, 0, 0, 0, FALSE); 1802 cam_periph_release_locked(periph); 1803 cam_periph_invalidate(periph); 1804 cam_periph_release_locked(periph); 1805 } else { 1806 probeschedule(periph); 1807 goto out; 1808 } 1809} 1810 1811static void 1812probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1813 probe_flags flags) 1814{ 1815 struct cam_path *tp; 1816 struct scsi_report_luns_data *old; 1817 u_int idx1, idx2, nlun_old, nlun_new; 1818 lun_id_t this_lun; 1819 u_int8_t *ol, *nl; 1820 1821 if (path->target == NULL) { 1822 return; 1823 } 1824 mtx_lock(&path->target->luns_mtx); 1825 old = path->target->luns; 1826 path->target->luns = new; 1827 mtx_unlock(&path->target->luns_mtx); 1828 if (old == NULL) 1829 return; 1830 nlun_old = scsi_4btoul(old->length) / 8; 1831 nlun_new = scsi_4btoul(new->length) / 8; 1832 1833 /* 1834 * We are not going to assume sorted lists. Deal. 1835 */ 1836 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1837 ol = old->luns[idx1].lundata; 1838 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1839 nl = new->luns[idx2].lundata; 1840 if (memcmp(nl, ol, 8) == 0) { 1841 break; 1842 } 1843 } 1844 if (idx2 < nlun_new) { 1845 continue; 1846 } 1847 /* 1848 * An 'old' item not in the 'new' list. 1849 * Nuke it. Except that if it is lun 0, 1850 * that would be what the probe state 1851 * machine is currently working on, 1852 * so we won't do that. 1853 */ 1854 CAM_GET_LUN(old, idx1, this_lun); 1855 if (this_lun == 0) { 1856 continue; 1857 } 1858 1859 /* 1860 * We also cannot nuke it if it is 1861 * not in a lun format we understand 1862 * and replace the LUN with a "simple" LUN 1863 * if that is all the HBA supports. 1864 */ 1865 if (!(flags & PROBE_EXTLUN)) { 1866 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1867 continue; 1868 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1869 } 1870 1871 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1872 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1873 xpt_async(AC_LOST_DEVICE, tp, NULL); 1874 xpt_free_path(tp); 1875 } 1876 } 1877 free(old, M_CAMXPT); 1878} 1879 1880static void 1881probecleanup(struct cam_periph *periph) 1882{ 1883 free(periph->softc, M_CAMXPT); 1884} 1885 1886static void 1887scsi_find_quirk(struct cam_ed *device) 1888{ 1889 struct scsi_quirk_entry *quirk; 1890 caddr_t match; 1891 1892 match = cam_quirkmatch((caddr_t)&device->inq_data, 1893 (caddr_t)scsi_quirk_table, 1894 nitems(scsi_quirk_table), 1895 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1896 1897 if (match == NULL) 1898 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1899 1900 quirk = (struct scsi_quirk_entry *)match; 1901 device->quirk = quirk; 1902 device->mintags = quirk->mintags; 1903 device->maxtags = quirk->maxtags; 1904} 1905 1906static int 1907sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1908{ 1909 int error, val; 1910 1911 val = cam_srch_hi; 1912 error = sysctl_handle_int(oidp, &val, 0, req); 1913 if (error != 0 || req->newptr == NULL) 1914 return (error); 1915 if (val == 0 || val == 1) { 1916 cam_srch_hi = val; 1917 return (0); 1918 } else { 1919 return (EINVAL); 1920 } 1921} 1922 1923typedef struct { 1924 union ccb *request_ccb; 1925 struct ccb_pathinq *cpi; 1926 int counter; 1927 int lunindex[0]; 1928} scsi_scan_bus_info; 1929 1930/* 1931 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1932 * As the scan progresses, scsi_scan_bus is used as the 1933 * callback on completion function. 1934 */ 1935static void 1936scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1937{ 1938 struct mtx *mtx; 1939 1940 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1941 ("scsi_scan_bus\n")); 1942 switch (request_ccb->ccb_h.func_code) { 1943 case XPT_SCAN_BUS: 1944 case XPT_SCAN_TGT: 1945 { 1946 scsi_scan_bus_info *scan_info; 1947 union ccb *work_ccb, *reset_ccb; 1948 struct cam_path *path; 1949 u_int i; 1950 u_int low_target, max_target; 1951 u_int initiator_id; 1952 1953 /* Find out the characteristics of the bus */ 1954 work_ccb = xpt_alloc_ccb_nowait(); 1955 if (work_ccb == NULL) { 1956 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1957 xpt_done(request_ccb); 1958 return; 1959 } 1960 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1961 request_ccb->ccb_h.pinfo.priority); 1962 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1963 xpt_action(work_ccb); 1964 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1965 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1966 xpt_free_ccb(work_ccb); 1967 xpt_done(request_ccb); 1968 return; 1969 } 1970 1971 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1972 /* 1973 * Can't scan the bus on an adapter that 1974 * cannot perform the initiator role. 1975 */ 1976 request_ccb->ccb_h.status = CAM_REQ_CMP; 1977 xpt_free_ccb(work_ccb); 1978 xpt_done(request_ccb); 1979 return; 1980 } 1981 1982 /* We may need to reset bus first, if we haven't done it yet. */ 1983 if ((work_ccb->cpi.hba_inquiry & 1984 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1985 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1986 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1987 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1988 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1989 CAM_PRIORITY_NONE); 1990 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1991 xpt_action(reset_ccb); 1992 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1993 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1994 xpt_free_ccb(reset_ccb); 1995 xpt_free_ccb(work_ccb); 1996 xpt_done(request_ccb); 1997 return; 1998 } 1999 xpt_free_ccb(reset_ccb); 2000 } 2001 2002 /* Save some state for use while we probe for devices */ 2003 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2004 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2005 if (scan_info == NULL) { 2006 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2007 xpt_free_ccb(work_ccb); 2008 xpt_done(request_ccb); 2009 return; 2010 } 2011 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2012 ("SCAN start for %p\n", scan_info)); 2013 scan_info->request_ccb = request_ccb; 2014 scan_info->cpi = &work_ccb->cpi; 2015 2016 /* Cache on our stack so we can work asynchronously */ 2017 max_target = scan_info->cpi->max_target; 2018 low_target = 0; 2019 initiator_id = scan_info->cpi->initiator_id; 2020 2021 2022 /* 2023 * We can scan all targets in parallel, or do it sequentially. 2024 */ 2025 2026 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2027 max_target = low_target = request_ccb->ccb_h.target_id; 2028 scan_info->counter = 0; 2029 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2030 max_target = 0; 2031 scan_info->counter = 0; 2032 } else { 2033 scan_info->counter = scan_info->cpi->max_target + 1; 2034 if (scan_info->cpi->initiator_id < scan_info->counter) { 2035 scan_info->counter--; 2036 } 2037 } 2038 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2039 mtx_unlock(mtx); 2040 2041 for (i = low_target; i <= max_target; i++) { 2042 cam_status status; 2043 if (i == initiator_id) 2044 continue; 2045 2046 status = xpt_create_path(&path, NULL, 2047 request_ccb->ccb_h.path_id, 2048 i, 0); 2049 if (status != CAM_REQ_CMP) { 2050 printf("scsi_scan_bus: xpt_create_path failed" 2051 " with status %#x, bus scan halted\n", 2052 status); 2053 free(scan_info, M_CAMXPT); 2054 request_ccb->ccb_h.status = status; 2055 xpt_free_ccb(work_ccb); 2056 xpt_done(request_ccb); 2057 break; 2058 } 2059 work_ccb = xpt_alloc_ccb_nowait(); 2060 if (work_ccb == NULL) { 2061 xpt_free_ccb((union ccb *)scan_info->cpi); 2062 free(scan_info, M_CAMXPT); 2063 xpt_free_path(path); 2064 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2065 xpt_done(request_ccb); 2066 break; 2067 } 2068 xpt_setup_ccb(&work_ccb->ccb_h, path, 2069 request_ccb->ccb_h.pinfo.priority); 2070 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2071 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2072 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2073 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2074 work_ccb->crcn.flags = request_ccb->crcn.flags; 2075 xpt_action(work_ccb); 2076 } 2077 2078 mtx_lock(mtx); 2079 break; 2080 } 2081 case XPT_SCAN_LUN: 2082 { 2083 cam_status status; 2084 struct cam_path *path, *oldpath; 2085 scsi_scan_bus_info *scan_info; 2086 struct cam_et *target; 2087 struct cam_ed *device, *nextdev; 2088 int next_target; 2089 path_id_t path_id; 2090 target_id_t target_id; 2091 lun_id_t lun_id; 2092 2093 oldpath = request_ccb->ccb_h.path; 2094 2095 status = cam_ccb_status(request_ccb); 2096 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2097 path_id = request_ccb->ccb_h.path_id; 2098 target_id = request_ccb->ccb_h.target_id; 2099 lun_id = request_ccb->ccb_h.target_lun; 2100 target = request_ccb->ccb_h.path->target; 2101 next_target = 1; 2102 2103 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2104 mtx_lock(mtx); 2105 mtx_lock(&target->luns_mtx); 2106 if (target->luns) { 2107 lun_id_t first; 2108 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2109 2110 /* 2111 * Make sure we skip over lun 0 if it's the first member 2112 * of the list as we've actually just finished probing 2113 * it. 2114 */ 2115 CAM_GET_LUN(target->luns, 0, first); 2116 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2117 scan_info->lunindex[target_id]++; 2118 } 2119 2120 /* 2121 * Skip any LUNs that the HBA can't deal with. 2122 */ 2123 while (scan_info->lunindex[target_id] < nluns) { 2124 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2125 CAM_GET_LUN(target->luns, 2126 scan_info->lunindex[target_id], 2127 lun_id); 2128 break; 2129 } 2130 2131 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2132 scan_info->lunindex[target_id])) { 2133 CAM_GET_SIMPLE_LUN(target->luns, 2134 scan_info->lunindex[target_id], 2135 lun_id); 2136 break; 2137 } 2138 2139 scan_info->lunindex[target_id]++; 2140 } 2141 2142 if (scan_info->lunindex[target_id] < nluns) { 2143 mtx_unlock(&target->luns_mtx); 2144 next_target = 0; 2145 CAM_DEBUG(request_ccb->ccb_h.path, 2146 CAM_DEBUG_PROBE, 2147 ("next lun to try at index %u is %jx\n", 2148 scan_info->lunindex[target_id], 2149 (uintmax_t)lun_id)); 2150 scan_info->lunindex[target_id]++; 2151 } else { 2152 mtx_unlock(&target->luns_mtx); 2153 /* We're done with scanning all luns. */ 2154 } 2155 } else { 2156 mtx_unlock(&target->luns_mtx); 2157 device = request_ccb->ccb_h.path->device; 2158 /* Continue sequential LUN scan if: */ 2159 /* -- we have more LUNs that need recheck */ 2160 mtx_lock(&target->bus->eb_mtx); 2161 nextdev = device; 2162 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2163 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2164 break; 2165 mtx_unlock(&target->bus->eb_mtx); 2166 if (nextdev != NULL) { 2167 next_target = 0; 2168 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2169 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2170 next_target = 1; 2171 /* -- this LUN is connected and its SCSI version 2172 * allows more LUNs. */ 2173 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2174 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2175 CAN_SRCH_HI_DENSE(device)) 2176 next_target = 0; 2177 /* -- this LUN is disconnected, its SCSI version 2178 * allows more LUNs and we guess they may be. */ 2179 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2180 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2181 CAN_SRCH_HI_SPARSE(device)) 2182 next_target = 0; 2183 } 2184 if (next_target == 0) { 2185 lun_id++; 2186 if (lun_id > scan_info->cpi->max_lun) 2187 next_target = 1; 2188 } 2189 } 2190 2191 /* 2192 * Check to see if we scan any further luns. 2193 */ 2194 if (next_target) { 2195 int done; 2196 2197 /* 2198 * Free the current request path- we're done with it. 2199 */ 2200 xpt_free_path(oldpath); 2201 hop_again: 2202 done = 0; 2203 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2204 done = 1; 2205 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2206 scan_info->counter++; 2207 if (scan_info->counter == 2208 scan_info->cpi->initiator_id) { 2209 scan_info->counter++; 2210 } 2211 if (scan_info->counter >= 2212 scan_info->cpi->max_target+1) { 2213 done = 1; 2214 } 2215 } else { 2216 scan_info->counter--; 2217 if (scan_info->counter == 0) { 2218 done = 1; 2219 } 2220 } 2221 if (done) { 2222 mtx_unlock(mtx); 2223 xpt_free_ccb(request_ccb); 2224 xpt_free_ccb((union ccb *)scan_info->cpi); 2225 request_ccb = scan_info->request_ccb; 2226 CAM_DEBUG(request_ccb->ccb_h.path, 2227 CAM_DEBUG_TRACE, 2228 ("SCAN done for %p\n", scan_info)); 2229 free(scan_info, M_CAMXPT); 2230 request_ccb->ccb_h.status = CAM_REQ_CMP; 2231 xpt_done(request_ccb); 2232 break; 2233 } 2234 2235 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2236 mtx_unlock(mtx); 2237 xpt_free_ccb(request_ccb); 2238 break; 2239 } 2240 status = xpt_create_path(&path, NULL, 2241 scan_info->request_ccb->ccb_h.path_id, 2242 scan_info->counter, 0); 2243 if (status != CAM_REQ_CMP) { 2244 mtx_unlock(mtx); 2245 printf("scsi_scan_bus: xpt_create_path failed" 2246 " with status %#x, bus scan halted\n", 2247 status); 2248 xpt_free_ccb(request_ccb); 2249 xpt_free_ccb((union ccb *)scan_info->cpi); 2250 request_ccb = scan_info->request_ccb; 2251 free(scan_info, M_CAMXPT); 2252 request_ccb->ccb_h.status = status; 2253 xpt_done(request_ccb); 2254 break; 2255 } 2256 xpt_setup_ccb(&request_ccb->ccb_h, path, 2257 request_ccb->ccb_h.pinfo.priority); 2258 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2259 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2260 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2261 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2262 request_ccb->crcn.flags = 2263 scan_info->request_ccb->crcn.flags; 2264 } else { 2265 status = xpt_create_path(&path, NULL, 2266 path_id, target_id, lun_id); 2267 /* 2268 * Free the old request path- we're done with it. We 2269 * do this *after* creating the new path so that 2270 * we don't remove a target that has our lun list 2271 * in the case that lun 0 is not present. 2272 */ 2273 xpt_free_path(oldpath); 2274 if (status != CAM_REQ_CMP) { 2275 printf("scsi_scan_bus: xpt_create_path failed " 2276 "with status %#x, halting LUN scan\n", 2277 status); 2278 goto hop_again; 2279 } 2280 xpt_setup_ccb(&request_ccb->ccb_h, path, 2281 request_ccb->ccb_h.pinfo.priority); 2282 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2283 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2284 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2285 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2286 request_ccb->crcn.flags = 2287 scan_info->request_ccb->crcn.flags; 2288 } 2289 mtx_unlock(mtx); 2290 xpt_action(request_ccb); 2291 break; 2292 } 2293 default: 2294 break; 2295 } 2296} 2297 2298static void 2299scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2300 cam_flags flags, union ccb *request_ccb) 2301{ 2302 struct ccb_pathinq cpi; 2303 cam_status status; 2304 struct cam_path *new_path; 2305 struct cam_periph *old_periph; 2306 int lock; 2307 2308 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2309 2310 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2311 cpi.ccb_h.func_code = XPT_PATH_INQ; 2312 xpt_action((union ccb *)&cpi); 2313 2314 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2315 if (request_ccb != NULL) { 2316 request_ccb->ccb_h.status = cpi.ccb_h.status; 2317 xpt_done(request_ccb); 2318 } 2319 return; 2320 } 2321 2322 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2323 /* 2324 * Can't scan the bus on an adapter that 2325 * cannot perform the initiator role. 2326 */ 2327 if (request_ccb != NULL) { 2328 request_ccb->ccb_h.status = CAM_REQ_CMP; 2329 xpt_done(request_ccb); 2330 } 2331 return; 2332 } 2333 2334 if (request_ccb == NULL) { 2335 request_ccb = xpt_alloc_ccb_nowait(); 2336 if (request_ccb == NULL) { 2337 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2338 "can't continue\n"); 2339 return; 2340 } 2341 status = xpt_create_path(&new_path, NULL, 2342 path->bus->path_id, 2343 path->target->target_id, 2344 path->device->lun_id); 2345 if (status != CAM_REQ_CMP) { 2346 xpt_print(path, "scsi_scan_lun: can't create path, " 2347 "can't continue\n"); 2348 xpt_free_ccb(request_ccb); 2349 return; 2350 } 2351 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2352 request_ccb->ccb_h.cbfcnp = xptscandone; 2353 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2354 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2355 request_ccb->crcn.flags = flags; 2356 } 2357 2358 lock = (xpt_path_owned(path) == 0); 2359 if (lock) 2360 xpt_path_lock(path); 2361 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2362 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2363 probe_softc *softc; 2364 2365 softc = (probe_softc *)old_periph->softc; 2366 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2367 &request_ccb->ccb_h, periph_links.tqe); 2368 } else { 2369 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2370 xpt_done(request_ccb); 2371 } 2372 } else { 2373 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2374 probestart, "probe", 2375 CAM_PERIPH_BIO, 2376 request_ccb->ccb_h.path, NULL, 0, 2377 request_ccb); 2378 2379 if (status != CAM_REQ_CMP) { 2380 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2381 "returned an error, can't continue probe\n"); 2382 request_ccb->ccb_h.status = status; 2383 xpt_done(request_ccb); 2384 } 2385 } 2386 if (lock) 2387 xpt_path_unlock(path); 2388} 2389 2390static void 2391xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2392{ 2393 2394 xpt_free_path(done_ccb->ccb_h.path); 2395 xpt_free_ccb(done_ccb); 2396} 2397 2398static struct cam_ed * 2399scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2400{ 2401 struct scsi_quirk_entry *quirk; 2402 struct cam_ed *device; 2403 2404 device = xpt_alloc_device(bus, target, lun_id); 2405 if (device == NULL) 2406 return (NULL); 2407 2408 /* 2409 * Take the default quirk entry until we have inquiry 2410 * data and can determine a better quirk to use. 2411 */ 2412 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2413 device->quirk = (void *)quirk; 2414 device->mintags = quirk->mintags; 2415 device->maxtags = quirk->maxtags; 2416 bzero(&device->inq_data, sizeof(device->inq_data)); 2417 device->inq_flags = 0; 2418 device->queue_flags = 0; 2419 device->serial_num = NULL; 2420 device->serial_num_len = 0; 2421 device->device_id = NULL; 2422 device->device_id_len = 0; 2423 device->supported_vpds = NULL; 2424 device->supported_vpds_len = 0; 2425 return (device); 2426} 2427 2428static void 2429scsi_devise_transport(struct cam_path *path) 2430{ 2431 struct ccb_pathinq cpi; 2432 struct ccb_trans_settings cts; 2433 struct scsi_inquiry_data *inq_buf; 2434 2435 /* Get transport information from the SIM */ 2436 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2437 cpi.ccb_h.func_code = XPT_PATH_INQ; 2438 xpt_action((union ccb *)&cpi); 2439 2440 inq_buf = NULL; 2441 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2442 inq_buf = &path->device->inq_data; 2443 path->device->protocol = PROTO_SCSI; 2444 path->device->protocol_version = 2445 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2446 path->device->transport = cpi.transport; 2447 path->device->transport_version = cpi.transport_version; 2448 2449 /* 2450 * Any device not using SPI3 features should 2451 * be considered SPI2 or lower. 2452 */ 2453 if (inq_buf != NULL) { 2454 if (path->device->transport == XPORT_SPI 2455 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2456 && path->device->transport_version > 2) 2457 path->device->transport_version = 2; 2458 } else { 2459 struct cam_ed* otherdev; 2460 2461 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2462 otherdev != NULL; 2463 otherdev = TAILQ_NEXT(otherdev, links)) { 2464 if (otherdev != path->device) 2465 break; 2466 } 2467 2468 if (otherdev != NULL) { 2469 /* 2470 * Initially assume the same versioning as 2471 * prior luns for this target. 2472 */ 2473 path->device->protocol_version = 2474 otherdev->protocol_version; 2475 path->device->transport_version = 2476 otherdev->transport_version; 2477 } else { 2478 /* Until we know better, opt for safety */ 2479 path->device->protocol_version = 2; 2480 if (path->device->transport == XPORT_SPI) 2481 path->device->transport_version = 2; 2482 else 2483 path->device->transport_version = 0; 2484 } 2485 } 2486 2487 /* 2488 * XXX 2489 * For a device compliant with SPC-2 we should be able 2490 * to determine the transport version supported by 2491 * scrutinizing the version descriptors in the 2492 * inquiry buffer. 2493 */ 2494 2495 /* Tell the controller what we think */ 2496 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2497 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2498 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2499 cts.transport = path->device->transport; 2500 cts.transport_version = path->device->transport_version; 2501 cts.protocol = path->device->protocol; 2502 cts.protocol_version = path->device->protocol_version; 2503 cts.proto_specific.valid = 0; 2504 cts.xport_specific.valid = 0; 2505 xpt_action((union ccb *)&cts); 2506} 2507 2508static void 2509scsi_dev_advinfo(union ccb *start_ccb) 2510{ 2511 struct cam_ed *device; 2512 struct ccb_dev_advinfo *cdai; 2513 off_t amt; 2514 2515 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2516 device = start_ccb->ccb_h.path->device; 2517 cdai = &start_ccb->cdai; 2518 switch(cdai->buftype) { 2519 case CDAI_TYPE_SCSI_DEVID: 2520 if (cdai->flags & CDAI_FLAG_STORE) 2521 return; 2522 cdai->provsiz = device->device_id_len; 2523 if (device->device_id_len == 0) 2524 break; 2525 amt = device->device_id_len; 2526 if (cdai->provsiz > cdai->bufsiz) 2527 amt = cdai->bufsiz; 2528 memcpy(cdai->buf, device->device_id, amt); 2529 break; 2530 case CDAI_TYPE_SERIAL_NUM: 2531 if (cdai->flags & CDAI_FLAG_STORE) 2532 return; 2533 cdai->provsiz = device->serial_num_len; 2534 if (device->serial_num_len == 0) 2535 break; 2536 amt = device->serial_num_len; 2537 if (cdai->provsiz > cdai->bufsiz) 2538 amt = cdai->bufsiz; 2539 memcpy(cdai->buf, device->serial_num, amt); 2540 break; 2541 case CDAI_TYPE_PHYS_PATH: 2542 if (cdai->flags & CDAI_FLAG_STORE) { 2543 if (device->physpath != NULL) { 2544 free(device->physpath, M_CAMXPT); 2545 device->physpath = NULL; 2546 device->physpath_len = 0; 2547 } 2548 /* Clear existing buffer if zero length */ 2549 if (cdai->bufsiz == 0) 2550 break; 2551 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2552 if (device->physpath == NULL) { 2553 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2554 return; 2555 } 2556 device->physpath_len = cdai->bufsiz; 2557 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2558 } else { 2559 cdai->provsiz = device->physpath_len; 2560 if (device->physpath_len == 0) 2561 break; 2562 amt = device->physpath_len; 2563 if (cdai->provsiz > cdai->bufsiz) 2564 amt = cdai->bufsiz; 2565 memcpy(cdai->buf, device->physpath, amt); 2566 } 2567 break; 2568 case CDAI_TYPE_RCAPLONG: 2569 if (cdai->flags & CDAI_FLAG_STORE) { 2570 if (device->rcap_buf != NULL) { 2571 free(device->rcap_buf, M_CAMXPT); 2572 device->rcap_buf = NULL; 2573 } 2574 2575 device->rcap_len = cdai->bufsiz; 2576 /* Clear existing buffer if zero length */ 2577 if (cdai->bufsiz == 0) 2578 break; 2579 2580 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2581 M_NOWAIT); 2582 if (device->rcap_buf == NULL) { 2583 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2584 return; 2585 } 2586 2587 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2588 } else { 2589 cdai->provsiz = device->rcap_len; 2590 if (device->rcap_len == 0) 2591 break; 2592 amt = device->rcap_len; 2593 if (cdai->provsiz > cdai->bufsiz) 2594 amt = cdai->bufsiz; 2595 memcpy(cdai->buf, device->rcap_buf, amt); 2596 } 2597 break; 2598 case CDAI_TYPE_EXT_INQ: 2599 /* 2600 * We fetch extended inquiry data during probe, if 2601 * available. We don't allow changing it. 2602 */ 2603 if (cdai->flags & CDAI_FLAG_STORE) 2604 return; 2605 cdai->provsiz = device->ext_inq_len; 2606 if (device->ext_inq_len == 0) 2607 break; 2608 amt = device->ext_inq_len; 2609 if (cdai->provsiz > cdai->bufsiz) 2610 amt = cdai->bufsiz; 2611 memcpy(cdai->buf, device->ext_inq, amt); 2612 break; 2613 default: 2614 return; 2615 } 2616 start_ccb->ccb_h.status = CAM_REQ_CMP; 2617 2618 if (cdai->flags & CDAI_FLAG_STORE) { 2619 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2620 (void *)(uintptr_t)cdai->buftype); 2621 } 2622} 2623 2624static void 2625scsi_action(union ccb *start_ccb) 2626{ 2627 2628 switch (start_ccb->ccb_h.func_code) { 2629 case XPT_SET_TRAN_SETTINGS: 2630 { 2631 scsi_set_transfer_settings(&start_ccb->cts, 2632 start_ccb->ccb_h.path, 2633 /*async_update*/FALSE); 2634 break; 2635 } 2636 case XPT_SCAN_BUS: 2637 case XPT_SCAN_TGT: 2638 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2639 break; 2640 case XPT_SCAN_LUN: 2641 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2642 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2643 start_ccb); 2644 break; 2645 case XPT_DEV_ADVINFO: 2646 { 2647 scsi_dev_advinfo(start_ccb); 2648 break; 2649 } 2650 default: 2651 xpt_action_default(start_ccb); 2652 break; 2653 } 2654} 2655 2656static void 2657scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2658 int async_update) 2659{ 2660 struct ccb_pathinq cpi; 2661 struct ccb_trans_settings cur_cts; 2662 struct ccb_trans_settings_scsi *scsi; 2663 struct ccb_trans_settings_scsi *cur_scsi; 2664 struct scsi_inquiry_data *inq_data; 2665 struct cam_ed *device; 2666 2667 if (path == NULL || (device = path->device) == NULL) { 2668 cts->ccb_h.status = CAM_PATH_INVALID; 2669 xpt_done((union ccb *)cts); 2670 return; 2671 } 2672 2673 if (cts->protocol == PROTO_UNKNOWN 2674 || cts->protocol == PROTO_UNSPECIFIED) { 2675 cts->protocol = device->protocol; 2676 cts->protocol_version = device->protocol_version; 2677 } 2678 2679 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2680 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2681 cts->protocol_version = device->protocol_version; 2682 2683 if (cts->protocol != device->protocol) { 2684 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2685 cts->protocol, device->protocol); 2686 cts->protocol = device->protocol; 2687 } 2688 2689 if (cts->protocol_version > device->protocol_version) { 2690 if (bootverbose) { 2691 xpt_print(path, "Down reving Protocol " 2692 "Version from %d to %d?\n", cts->protocol_version, 2693 device->protocol_version); 2694 } 2695 cts->protocol_version = device->protocol_version; 2696 } 2697 2698 if (cts->transport == XPORT_UNKNOWN 2699 || cts->transport == XPORT_UNSPECIFIED) { 2700 cts->transport = device->transport; 2701 cts->transport_version = device->transport_version; 2702 } 2703 2704 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2705 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2706 cts->transport_version = device->transport_version; 2707 2708 if (cts->transport != device->transport) { 2709 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2710 cts->transport, device->transport); 2711 cts->transport = device->transport; 2712 } 2713 2714 if (cts->transport_version > device->transport_version) { 2715 if (bootverbose) { 2716 xpt_print(path, "Down reving Transport " 2717 "Version from %d to %d?\n", cts->transport_version, 2718 device->transport_version); 2719 } 2720 cts->transport_version = device->transport_version; 2721 } 2722 2723 /* 2724 * Nothing more of interest to do unless 2725 * this is a device connected via the 2726 * SCSI protocol. 2727 */ 2728 if (cts->protocol != PROTO_SCSI) { 2729 if (async_update == FALSE) 2730 xpt_action_default((union ccb *)cts); 2731 return; 2732 } 2733 2734 inq_data = &device->inq_data; 2735 scsi = &cts->proto_specific.scsi; 2736 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2737 cpi.ccb_h.func_code = XPT_PATH_INQ; 2738 xpt_action((union ccb *)&cpi); 2739 2740 /* SCSI specific sanity checking */ 2741 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2742 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2743 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2744 || (device->mintags == 0)) { 2745 /* 2746 * Can't tag on hardware that doesn't support tags, 2747 * doesn't have it enabled, or has broken tag support. 2748 */ 2749 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2750 } 2751 2752 if (async_update == FALSE) { 2753 /* 2754 * Perform sanity checking against what the 2755 * controller and device can do. 2756 */ 2757 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2758 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2759 cur_cts.type = cts->type; 2760 xpt_action((union ccb *)&cur_cts); 2761 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2762 return; 2763 } 2764 cur_scsi = &cur_cts.proto_specific.scsi; 2765 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2766 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2767 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2768 } 2769 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2770 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2771 } 2772 2773 /* SPI specific sanity checking */ 2774 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2775 u_int spi3caps; 2776 struct ccb_trans_settings_spi *spi; 2777 struct ccb_trans_settings_spi *cur_spi; 2778 2779 spi = &cts->xport_specific.spi; 2780 2781 cur_spi = &cur_cts.xport_specific.spi; 2782 2783 /* Fill in any gaps in what the user gave us */ 2784 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2785 spi->sync_period = cur_spi->sync_period; 2786 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2787 spi->sync_period = 0; 2788 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2789 spi->sync_offset = cur_spi->sync_offset; 2790 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2791 spi->sync_offset = 0; 2792 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2793 spi->ppr_options = cur_spi->ppr_options; 2794 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2795 spi->ppr_options = 0; 2796 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2797 spi->bus_width = cur_spi->bus_width; 2798 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2799 spi->bus_width = 0; 2800 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2801 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2802 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2803 } 2804 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2805 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2806 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2807 && (inq_data->flags & SID_Sync) == 0 2808 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2809 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2810 /* Force async */ 2811 spi->sync_period = 0; 2812 spi->sync_offset = 0; 2813 } 2814 2815 switch (spi->bus_width) { 2816 case MSG_EXT_WDTR_BUS_32_BIT: 2817 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2818 || (inq_data->flags & SID_WBus32) != 0 2819 || cts->type == CTS_TYPE_USER_SETTINGS) 2820 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2821 break; 2822 /* Fall Through to 16-bit */ 2823 case MSG_EXT_WDTR_BUS_16_BIT: 2824 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2825 || (inq_data->flags & SID_WBus16) != 0 2826 || cts->type == CTS_TYPE_USER_SETTINGS) 2827 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2828 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2829 break; 2830 } 2831 /* Fall Through to 8-bit */ 2832 default: /* New bus width?? */ 2833 case MSG_EXT_WDTR_BUS_8_BIT: 2834 /* All targets can do this */ 2835 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2836 break; 2837 } 2838 2839 spi3caps = cpi.xport_specific.spi.ppr_options; 2840 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2841 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2842 spi3caps &= inq_data->spi3data; 2843 2844 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2845 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2846 2847 if ((spi3caps & SID_SPI_IUS) == 0) 2848 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2849 2850 if ((spi3caps & SID_SPI_QAS) == 0) 2851 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2852 2853 /* No SPI Transfer settings are allowed unless we are wide */ 2854 if (spi->bus_width == 0) 2855 spi->ppr_options = 0; 2856 2857 if ((spi->valid & CTS_SPI_VALID_DISC) 2858 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2859 /* 2860 * Can't tag queue without disconnection. 2861 */ 2862 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2863 scsi->valid |= CTS_SCSI_VALID_TQ; 2864 } 2865 2866 /* 2867 * If we are currently performing tagged transactions to 2868 * this device and want to change its negotiation parameters, 2869 * go non-tagged for a bit to give the controller a chance to 2870 * negotiate unhampered by tag messages. 2871 */ 2872 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2873 && (device->inq_flags & SID_CmdQue) != 0 2874 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2875 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2876 CTS_SPI_VALID_SYNC_OFFSET| 2877 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2878 scsi_toggle_tags(path); 2879 } 2880 2881 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2882 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2883 int device_tagenb; 2884 2885 /* 2886 * If we are transitioning from tags to no-tags or 2887 * vice-versa, we need to carefully freeze and restart 2888 * the queue so that we don't overlap tagged and non-tagged 2889 * commands. We also temporarily stop tags if there is 2890 * a change in transfer negotiation settings to allow 2891 * "tag-less" negotiation. 2892 */ 2893 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2894 || (device->inq_flags & SID_CmdQue) != 0) 2895 device_tagenb = TRUE; 2896 else 2897 device_tagenb = FALSE; 2898 2899 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2900 && device_tagenb == FALSE) 2901 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2902 && device_tagenb == TRUE)) { 2903 2904 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2905 /* 2906 * Delay change to use tags until after a 2907 * few commands have gone to this device so 2908 * the controller has time to perform transfer 2909 * negotiations without tagged messages getting 2910 * in the way. 2911 */ 2912 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2913 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2914 } else { 2915 xpt_stop_tags(path); 2916 } 2917 } 2918 } 2919 if (async_update == FALSE) 2920 xpt_action_default((union ccb *)cts); 2921} 2922 2923static void 2924scsi_toggle_tags(struct cam_path *path) 2925{ 2926 struct cam_ed *dev; 2927 2928 /* 2929 * Give controllers a chance to renegotiate 2930 * before starting tag operations. We 2931 * "toggle" tagged queuing off then on 2932 * which causes the tag enable command delay 2933 * counter to come into effect. 2934 */ 2935 dev = path->device; 2936 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2937 || ((dev->inq_flags & SID_CmdQue) != 0 2938 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2939 struct ccb_trans_settings cts; 2940 2941 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2942 cts.protocol = PROTO_SCSI; 2943 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2944 cts.transport = XPORT_UNSPECIFIED; 2945 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2946 cts.proto_specific.scsi.flags = 0; 2947 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2948 scsi_set_transfer_settings(&cts, path, 2949 /*async_update*/TRUE); 2950 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2951 scsi_set_transfer_settings(&cts, path, 2952 /*async_update*/TRUE); 2953 } 2954} 2955 2956/* 2957 * Handle any per-device event notifications that require action by the XPT. 2958 */ 2959static void 2960scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2961 struct cam_ed *device, void *async_arg) 2962{ 2963 cam_status status; 2964 struct cam_path newpath; 2965 2966 /* 2967 * We only need to handle events for real devices. 2968 */ 2969 if (target->target_id == CAM_TARGET_WILDCARD 2970 || device->lun_id == CAM_LUN_WILDCARD) 2971 return; 2972 2973 /* 2974 * We need our own path with wildcards expanded to 2975 * handle certain types of events. 2976 */ 2977 if ((async_code == AC_SENT_BDR) 2978 || (async_code == AC_BUS_RESET) 2979 || (async_code == AC_INQ_CHANGED)) 2980 status = xpt_compile_path(&newpath, NULL, 2981 bus->path_id, 2982 target->target_id, 2983 device->lun_id); 2984 else 2985 status = CAM_REQ_CMP_ERR; 2986 2987 if (status == CAM_REQ_CMP) { 2988 2989 /* 2990 * Allow transfer negotiation to occur in a 2991 * tag free environment and after settle delay. 2992 */ 2993 if (async_code == AC_SENT_BDR 2994 || async_code == AC_BUS_RESET) { 2995 cam_freeze_devq(&newpath); 2996 cam_release_devq(&newpath, 2997 RELSIM_RELEASE_AFTER_TIMEOUT, 2998 /*reduction*/0, 2999 /*timeout*/scsi_delay, 3000 /*getcount_only*/0); 3001 scsi_toggle_tags(&newpath); 3002 } 3003 3004 if (async_code == AC_INQ_CHANGED) { 3005 /* 3006 * We've sent a start unit command, or 3007 * something similar to a device that 3008 * may have caused its inquiry data to 3009 * change. So we re-scan the device to 3010 * refresh the inquiry data for it. 3011 */ 3012 scsi_scan_lun(newpath.periph, &newpath, 3013 CAM_EXPECT_INQ_CHANGE, NULL); 3014 } 3015 xpt_release_path(&newpath); 3016 } else if (async_code == AC_LOST_DEVICE && 3017 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3018 device->flags |= CAM_DEV_UNCONFIGURED; 3019 xpt_release_device(device); 3020 } else if (async_code == AC_TRANSFER_NEG) { 3021 struct ccb_trans_settings *settings; 3022 struct cam_path path; 3023 3024 settings = (struct ccb_trans_settings *)async_arg; 3025 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3026 device->lun_id); 3027 scsi_set_transfer_settings(settings, &path, 3028 /*async_update*/TRUE); 3029 xpt_release_path(&path); 3030 } 3031} 3032 3033static void 3034scsi_announce_periph(struct cam_periph *periph) 3035{ 3036 struct ccb_pathinq cpi; 3037 struct ccb_trans_settings cts; 3038 struct cam_path *path = periph->path; 3039 u_int speed; 3040 u_int freq; 3041 u_int mb; 3042 3043 cam_periph_assert(periph, MA_OWNED); 3044 3045 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 3046 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3047 cts.type = CTS_TYPE_CURRENT_SETTINGS; 3048 xpt_action((union ccb*)&cts); 3049 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3050 return; 3051 /* Ask the SIM for its base transfer speed */ 3052 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3053 cpi.ccb_h.func_code = XPT_PATH_INQ; 3054 xpt_action((union ccb *)&cpi); 3055 /* Report connection speed */ 3056 speed = cpi.base_transfer_speed; 3057 freq = 0; 3058 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3059 struct ccb_trans_settings_spi *spi = 3060 &cts.xport_specific.spi; 3061 3062 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3063 && spi->sync_offset != 0) { 3064 freq = scsi_calc_syncsrate(spi->sync_period); 3065 speed = freq; 3066 } 3067 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3068 speed *= (0x01 << spi->bus_width); 3069 } 3070 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3071 struct ccb_trans_settings_fc *fc = 3072 &cts.xport_specific.fc; 3073 3074 if (fc->valid & CTS_FC_VALID_SPEED) 3075 speed = fc->bitrate; 3076 } 3077 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3078 struct ccb_trans_settings_sas *sas = 3079 &cts.xport_specific.sas; 3080 3081 if (sas->valid & CTS_SAS_VALID_SPEED) 3082 speed = sas->bitrate; 3083 } 3084 mb = speed / 1000; 3085 if (mb > 0) 3086 printf("%s%d: %d.%03dMB/s transfers", 3087 periph->periph_name, periph->unit_number, 3088 mb, speed % 1000); 3089 else 3090 printf("%s%d: %dKB/s transfers", periph->periph_name, 3091 periph->unit_number, speed); 3092 /* Report additional information about SPI connections */ 3093 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3094 struct ccb_trans_settings_spi *spi; 3095 3096 spi = &cts.xport_specific.spi; 3097 if (freq != 0) { 3098 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3099 freq % 1000, 3100 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3101 ? " DT" : "", 3102 spi->sync_offset); 3103 } 3104 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3105 && spi->bus_width > 0) { 3106 if (freq != 0) { 3107 printf(", "); 3108 } else { 3109 printf(" ("); 3110 } 3111 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3112 } else if (freq != 0) { 3113 printf(")"); 3114 } 3115 } 3116 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3117 struct ccb_trans_settings_fc *fc; 3118 3119 fc = &cts.xport_specific.fc; 3120 if (fc->valid & CTS_FC_VALID_WWNN) 3121 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3122 if (fc->valid & CTS_FC_VALID_WWPN) 3123 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3124 if (fc->valid & CTS_FC_VALID_PORT) 3125 printf(" PortID 0x%x", fc->port); 3126 } 3127 printf("\n"); 3128} 3129 3130static void 3131scsi_proto_announce(struct cam_ed *device) 3132{ 3133 scsi_print_inquiry(&device->inq_data); 3134} 3135 3136static void 3137scsi_proto_denounce(struct cam_ed *device) 3138{ 3139 scsi_print_inquiry_short(&device->inq_data); 3140} 3141 3142static void 3143scsi_proto_debug_out(union ccb *ccb) 3144{ 3145 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3146 struct cam_ed *device; 3147 3148 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3149 return; 3150 3151 device = ccb->ccb_h.path->device; 3152 CAM_DEBUG(ccb->ccb_h.path, 3153 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3154 scsi_op_desc(ccb->csio.cdb_io.cdb_bytes[0], &device->inq_data), 3155 scsi_cdb_string(ccb->csio.cdb_io.cdb_bytes, cdb_str, sizeof(cdb_str)))); 3156} 3157