1 /*- 2 * Implementation of the SCSI Transport 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 7 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification, immediately at the beginning of the file. 16 * 2. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/systm.h> 35 #include <sys/types.h> 36 #include <sys/malloc.h> 37 #include <sys/kernel.h> 38 #include <sys/time.h> 39 #include <sys/conf.h> 40 #include <sys/fcntl.h> 41 #include <sys/md5.h> 42 #include <sys/sbuf.h> 43 44 #include <sys/lock.h> 45 #include <sys/mutex.h> 46 #include <sys/sysctl.h> 47 48 #include <cam/cam.h> 49 #include <cam/cam_ccb.h> 50 #include <cam/cam_queue.h> 51 #include <cam/cam_periph.h> 52 #include <cam/cam_sim.h> 53 #include <cam/cam_xpt.h> 54 #include <cam/cam_xpt_sim.h> 55 #include <cam/cam_xpt_periph.h> 56 #include <cam/cam_xpt_internal.h> 57 #include <cam/cam_debug.h> 58 59 #include <cam/scsi/scsi_all.h> 60 #include <cam/scsi/scsi_message.h> 61 #include <cam/scsi/scsi_pass.h> 62 #include <machine/stdarg.h> /* for xpt_print below */ 63 64 struct scsi_quirk_entry { 65 struct scsi_inquiry_pattern inq_pat; 66 uint8_t quirks; 67 #define CAM_QUIRK_NOLUNS 0x01 68 #define CAM_QUIRK_NOVPDS 0x02 69 #define CAM_QUIRK_HILUNS 0x04 70 #define CAM_QUIRK_NOHILUNS 0x08 71 #define CAM_QUIRK_NORPTLUNS 0x10 72 u_int mintags; 73 u_int maxtags; 74 }; 75 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 76 77 static int cam_srch_hi = 0; 78 SYSCTL_INT(_kern_cam, OID_AUTO, cam_srch_hi, CTLFLAG_RWTUN, 79 &cam_srch_hi, 0, "Search above LUN 7 for SCSI3 and greater devices"); 80 81 #define CAM_SCSI2_MAXLUN 8 82 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 83 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 84 RPL_LUNDATA_ATYP_PERIPH) || \ 85 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 86 RPL_LUNDATA_ATYP_FLAT)) 87 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 88 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 89 RPL_LUNDATA_ATYP_PERIPH) { \ 90 (lval) = (lp)->luns[(i)].lundata[1]; \ 91 } else { \ 92 (lval) = (lp)->luns[(i)].lundata[0]; \ 93 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 94 (lval) <<= 8; \ 95 (lval) |= (lp)->luns[(i)].lundata[1]; \ 96 } 97 #define CAM_GET_LUN(lp, i, lval) \ 98 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 99 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 100 101 /* 102 * If we're not quirked to search <= the first 8 luns 103 * and we are either quirked to search above lun 8, 104 * or we're > SCSI-2 and we've enabled hilun searching, 105 * or we're > SCSI-2 and the last lun was a success, 106 * we can look for luns above lun 8. 107 */ 108 #define CAN_SRCH_HI_SPARSE(dv) \ 109 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 110 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 111 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 112 113 #define CAN_SRCH_HI_DENSE(dv) \ 114 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 115 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 116 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 117 118 static periph_init_t probe_periph_init; 119 120 static struct periph_driver probe_driver = 121 { 122 probe_periph_init, "probe", 123 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 124 CAM_PERIPH_DRV_EARLY 125 }; 126 127 PERIPHDRIVER_DECLARE(probe, probe_driver); 128 129 typedef enum { 130 PROBE_TUR, 131 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 132 PROBE_FULL_INQUIRY, 133 PROBE_REPORT_LUNS, 134 PROBE_MODE_SENSE, 135 PROBE_SUPPORTED_VPD_LIST, 136 PROBE_DEVICE_ID, 137 PROBE_EXTENDED_INQUIRY, 138 PROBE_SERIAL_NUM, 139 PROBE_TUR_FOR_NEGOTIATION, 140 PROBE_INQUIRY_BASIC_DV1, 141 PROBE_INQUIRY_BASIC_DV2, 142 PROBE_DV_EXIT, 143 PROBE_DONE, 144 PROBE_INVALID 145 } probe_action; 146 147 static char *probe_action_text[] = { 148 "PROBE_TUR", 149 "PROBE_INQUIRY", 150 "PROBE_FULL_INQUIRY", 151 "PROBE_REPORT_LUNS", 152 "PROBE_MODE_SENSE", 153 "PROBE_SUPPORTED_VPD_LIST", 154 "PROBE_DEVICE_ID", 155 "PROBE_EXTENDED_INQUIRY", 156 "PROBE_SERIAL_NUM", 157 "PROBE_TUR_FOR_NEGOTIATION", 158 "PROBE_INQUIRY_BASIC_DV1", 159 "PROBE_INQUIRY_BASIC_DV2", 160 "PROBE_DV_EXIT", 161 "PROBE_DONE", 162 "PROBE_INVALID" 163 }; 164 165 #define PROBE_SET_ACTION(softc, newaction) \ 166 do { \ 167 char **text; \ 168 text = probe_action_text; \ 169 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 170 ("Probe %s to %s\n", text[(softc)->action], \ 171 text[(newaction)])); \ 172 (softc)->action = (newaction); \ 173 } while(0) 174 175 typedef enum { 176 PROBE_INQUIRY_CKSUM = 0x01, 177 PROBE_NO_ANNOUNCE = 0x04, 178 PROBE_EXTLUN = 0x08 179 } probe_flags; 180 181 typedef struct { 182 TAILQ_HEAD(, ccb_hdr) request_ccbs; 183 probe_action action; 184 probe_flags flags; 185 MD5_CTX context; 186 uint8_t digest[16]; 187 struct cam_periph *periph; 188 } probe_softc; 189 190 static const char quantum[] = "QUANTUM"; 191 static const char sony[] = "SONY"; 192 static const char west_digital[] = "WDIGTL"; 193 static const char samsung[] = "SAMSUNG"; 194 static const char seagate[] = "SEAGATE"; 195 static const char microp[] = "MICROP"; 196 197 static struct scsi_quirk_entry scsi_quirk_table[] = 198 { 199 { 200 /* Reports QUEUE FULL for temporary resource shortages */ 201 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 202 /*quirks*/0, /*mintags*/24, /*maxtags*/32 203 }, 204 { 205 /* Reports QUEUE FULL for temporary resource shortages */ 206 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 207 /*quirks*/0, /*mintags*/24, /*maxtags*/32 208 }, 209 { 210 /* Reports QUEUE FULL for temporary resource shortages */ 211 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 212 /*quirks*/0, /*mintags*/24, /*maxtags*/32 213 }, 214 { 215 /* Broken tagged queuing drive */ 216 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 217 /*quirks*/0, /*mintags*/0, /*maxtags*/0 218 }, 219 { 220 /* Broken tagged queuing drive */ 221 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 222 /*quirks*/0, /*mintags*/0, /*maxtags*/0 223 }, 224 { 225 /* Broken tagged queuing drive */ 226 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 227 /*quirks*/0, /*mintags*/0, /*maxtags*/0 228 }, 229 { 230 /* 231 * Unfortunately, the Quantum Atlas III has the same 232 * problem as the Atlas II drives above. 233 * Reported by: "Johan Granlund" <johan@granlund.nu> 234 * 235 * For future reference, the drive with the problem was: 236 * QUANTUM QM39100TD-SW N1B0 237 * 238 * It's possible that Quantum will fix the problem in later 239 * firmware revisions. If that happens, the quirk entry 240 * will need to be made specific to the firmware revisions 241 * with the problem. 242 * 243 */ 244 /* Reports QUEUE FULL for temporary resource shortages */ 245 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 246 /*quirks*/0, /*mintags*/24, /*maxtags*/32 247 }, 248 { 249 /* 250 * 18 Gig Atlas III, same problem as the 9G version. 251 * Reported by: Andre Albsmeier 252 * <andre.albsmeier@mchp.siemens.de> 253 * 254 * For future reference, the drive with the problem was: 255 * QUANTUM QM318000TD-S N491 256 */ 257 /* Reports QUEUE FULL for temporary resource shortages */ 258 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 259 /*quirks*/0, /*mintags*/24, /*maxtags*/32 260 }, 261 { 262 /* 263 * Broken tagged queuing drive 264 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 265 * and: Martin Renters <martin@tdc.on.ca> 266 */ 267 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 268 /*quirks*/0, /*mintags*/0, /*maxtags*/0 269 }, 270 /* 271 * The Seagate Medalist Pro drives have very poor write 272 * performance with anything more than 2 tags. 273 * 274 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 275 * Drive: <SEAGATE ST36530N 1444> 276 * 277 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 278 * Drive: <SEAGATE ST34520W 1281> 279 * 280 * No one has actually reported that the 9G version 281 * (ST39140*) of the Medalist Pro has the same problem, but 282 * we're assuming that it does because the 4G and 6.5G 283 * versions of the drive are broken. 284 */ 285 { 286 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 287 /*quirks*/0, /*mintags*/2, /*maxtags*/2 288 }, 289 { 290 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 291 /*quirks*/0, /*mintags*/2, /*maxtags*/2 292 }, 293 { 294 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 295 /*quirks*/0, /*mintags*/2, /*maxtags*/2 296 }, 297 { 298 /* 299 * Experiences command timeouts under load with a 300 * tag count higher than 55. 301 */ 302 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 303 /*quirks*/0, /*mintags*/2, /*maxtags*/55 304 }, 305 { 306 /* 307 * Slow when tagged queueing is enabled. Write performance 308 * steadily drops off with more and more concurrent 309 * transactions. Best sequential write performance with 310 * tagged queueing turned off and write caching turned on. 311 * 312 * PR: kern/10398 313 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 314 * Drive: DCAS-34330 w/ "S65A" firmware. 315 * 316 * The drive with the problem had the "S65A" firmware 317 * revision, and has also been reported (by Stephen J. 318 * Roznowski <sjr@home.net>) for a drive with the "S61A" 319 * firmware revision. 320 * 321 * Although no one has reported problems with the 2 gig 322 * version of the DCAS drive, the assumption is that it 323 * has the same problems as the 4 gig version. Therefore 324 * this quirk entries disables tagged queueing for all 325 * DCAS drives. 326 */ 327 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 328 /*quirks*/0, /*mintags*/0, /*maxtags*/0 329 }, 330 { 331 /* Broken tagged queuing drive */ 332 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 333 /*quirks*/0, /*mintags*/0, /*maxtags*/0 334 }, 335 { 336 /* Broken tagged queuing drive */ 337 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 338 /*quirks*/0, /*mintags*/0, /*maxtags*/0 339 }, 340 { 341 /* This does not support other than LUN 0 */ 342 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 343 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 344 }, 345 { 346 /* 347 * Broken tagged queuing drive. 348 * Submitted by: 349 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 350 * in PR kern/9535 351 */ 352 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 353 /*quirks*/0, /*mintags*/0, /*maxtags*/0 354 }, 355 { 356 /* 357 * Slow when tagged queueing is enabled. (1.5MB/sec versus 358 * 8MB/sec.) 359 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 360 * Best performance with these drives is achieved with 361 * tagged queueing turned off, and write caching turned on. 362 */ 363 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 364 /*quirks*/0, /*mintags*/0, /*maxtags*/0 365 }, 366 { 367 /* 368 * Slow when tagged queueing is enabled. (1.5MB/sec versus 369 * 8MB/sec.) 370 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 371 * Best performance with these drives is achieved with 372 * tagged queueing turned off, and write caching turned on. 373 */ 374 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 375 /*quirks*/0, /*mintags*/0, /*maxtags*/0 376 }, 377 { 378 /* 379 * Doesn't handle queue full condition correctly, 380 * so we need to limit maxtags to what the device 381 * can handle instead of determining this automatically. 382 */ 383 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 384 /*quirks*/0, /*mintags*/2, /*maxtags*/32 385 }, 386 { 387 /* Really only one LUN */ 388 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 389 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 390 }, 391 { 392 /* I can't believe we need a quirk for DPT volumes. */ 393 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 394 CAM_QUIRK_NOLUNS, 395 /*mintags*/0, /*maxtags*/255 396 }, 397 { 398 /* 399 * Many Sony CDROM drives don't like multi-LUN probing. 400 */ 401 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 402 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 403 }, 404 { 405 /* 406 * This drive doesn't like multiple LUN probing. 407 * Submitted by: Parag Patel <parag@cgt.com> 408 */ 409 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 410 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 411 }, 412 { 413 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 414 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 415 }, 416 { 417 /* 418 * The 8200 doesn't like multi-lun probing, and probably 419 * don't like serial number requests either. 420 */ 421 { 422 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 423 "EXB-8200*", "*" 424 }, 425 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 426 }, 427 { 428 /* 429 * Let's try the same as above, but for a drive that says 430 * it's an IPL-6860 but is actually an EXB 8200. 431 */ 432 { 433 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 434 "IPL-6860*", "*" 435 }, 436 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 437 }, 438 { 439 /* 440 * These Hitachi drives don't like multi-lun probing. 441 * The PR submitter has a DK319H, but says that the Linux 442 * kernel has a similar work-around for the DK312 and DK314, 443 * so all DK31* drives are quirked here. 444 * PR: misc/18793 445 * Submitted by: Paul Haddad <paul@pth.com> 446 */ 447 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 448 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 449 }, 450 { 451 /* 452 * The Hitachi CJ series with J8A8 firmware apparently has 453 * problems with tagged commands. 454 * PR: 23536 455 * Reported by: amagai@nue.org 456 */ 457 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 458 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 459 }, 460 { 461 /* 462 * These are the large storage arrays. 463 * Submitted by: William Carrel <william.carrel@infospace.com> 464 */ 465 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 466 CAM_QUIRK_HILUNS, 2, 1024 467 }, 468 { 469 /* 470 * This old revision of the TDC3600 is also SCSI-1, and 471 * hangs upon serial number probing. 472 */ 473 { 474 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 475 " TDC 3600", "U07:" 476 }, 477 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 478 }, 479 { 480 /* 481 * Would repond to all LUNs if asked for. 482 */ 483 { 484 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 485 "CP150", "*" 486 }, 487 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 488 }, 489 { 490 /* 491 * Would repond to all LUNs if asked for. 492 */ 493 { 494 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 495 "96X2*", "*" 496 }, 497 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 498 }, 499 { 500 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 501 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 502 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 503 }, 504 { 505 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 506 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 507 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 508 }, 509 { 510 /* TeraSolutions special settings for TRC-22 RAID */ 511 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 512 /*quirks*/0, /*mintags*/55, /*maxtags*/255 513 }, 514 { 515 /* Veritas Storage Appliance */ 516 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 517 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 518 }, 519 { 520 /* 521 * Would respond to all LUNs. Device type and removable 522 * flag are jumper-selectable. 523 */ 524 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 525 "Tahiti 1", "*" 526 }, 527 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 528 }, 529 { 530 /* EasyRAID E5A aka. areca ARC-6010 */ 531 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 532 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 533 }, 534 { 535 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 536 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 537 }, 538 { 539 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 540 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 541 }, 542 { 543 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 544 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 545 }, 546 { 547 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 548 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 549 }, 550 { 551 /* Default tagged queuing parameters for all devices */ 552 { 553 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 554 /*vendor*/"*", /*product*/"*", /*revision*/"*" 555 }, 556 /*quirks*/0, /*mintags*/2, /*maxtags*/255 557 }, 558 }; 559 560 static cam_status proberegister(struct cam_periph *periph, 561 void *arg); 562 static void probeschedule(struct cam_periph *probe_periph); 563 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 564 static void proberequestdefaultnegotiation(struct cam_periph *periph); 565 static int proberequestbackoff(struct cam_periph *periph, 566 struct cam_ed *device); 567 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 568 static void probe_purge_old(struct cam_path *path, 569 struct scsi_report_luns_data *new, 570 probe_flags flags); 571 static void probecleanup(struct cam_periph *periph); 572 static void scsi_find_quirk(struct cam_ed *device); 573 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 574 static void scsi_scan_lun(struct cam_periph *periph, 575 struct cam_path *path, cam_flags flags, 576 union ccb *ccb); 577 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 578 static struct cam_ed * 579 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 580 lun_id_t lun_id); 581 static void scsi_devise_transport(struct cam_path *path); 582 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 583 struct cam_path *path, 584 int async_update); 585 static void scsi_toggle_tags(struct cam_path *path); 586 static void scsi_dev_async(uint32_t async_code, 587 struct cam_eb *bus, 588 struct cam_et *target, 589 struct cam_ed *device, 590 void *async_arg); 591 static void scsi_action(union ccb *start_ccb); 592 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 593 static void scsi_proto_announce_sbuf(struct cam_ed *device, 594 struct sbuf *sb); 595 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 596 struct sbuf *sb); 597 static void scsi_proto_debug_out(union ccb *ccb); 598 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 599 600 static struct xpt_xport_ops scsi_xport_ops = { 601 .alloc_device = scsi_alloc_device, 602 .action = scsi_action, 603 .async = scsi_dev_async, 604 .announce_sbuf = scsi_announce_periph_sbuf, 605 }; 606 #define SCSI_XPT_XPORT(x, X) \ 607 static struct xpt_xport scsi_xport_ ## x = { \ 608 .xport = XPORT_ ## X, \ 609 .name = #x, \ 610 .ops = &scsi_xport_ops, \ 611 }; \ 612 CAM_XPT_XPORT(scsi_xport_ ## x); 613 614 SCSI_XPT_XPORT(spi, SPI); 615 SCSI_XPT_XPORT(sas, SAS); 616 SCSI_XPT_XPORT(fc, FC); 617 SCSI_XPT_XPORT(usb, USB); 618 SCSI_XPT_XPORT(iscsi, ISCSI); 619 SCSI_XPT_XPORT(srp, SRP); 620 SCSI_XPT_XPORT(ppb, PPB); 621 622 #undef SCSI_XPORT_XPORT 623 624 static struct xpt_proto_ops scsi_proto_ops = { 625 .announce_sbuf = scsi_proto_announce_sbuf, 626 .denounce_sbuf = scsi_proto_denounce_sbuf, 627 .debug_out = scsi_proto_debug_out, 628 }; 629 static struct xpt_proto scsi_proto = { 630 .proto = PROTO_SCSI, 631 .name = "scsi", 632 .ops = &scsi_proto_ops, 633 }; 634 CAM_XPT_PROTO(scsi_proto); 635 636 static void 637 probe_periph_init(void) 638 { 639 } 640 641 static cam_status 642 proberegister(struct cam_periph *periph, void *arg) 643 { 644 union ccb *request_ccb; /* CCB representing the probe request */ 645 probe_softc *softc; 646 647 request_ccb = (union ccb *)arg; 648 if (request_ccb == NULL) { 649 printf("proberegister: no probe CCB, can't register device\n"); 650 return(CAM_REQ_CMP_ERR); 651 } 652 653 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 654 655 if (softc == NULL) { 656 printf("proberegister: Unable to probe new device. Unable to allocate softc\n"); 657 return(CAM_REQ_CMP_ERR); 658 } 659 TAILQ_INIT(&softc->request_ccbs); 660 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 661 periph_links.tqe); 662 softc->flags = 0; 663 periph->softc = softc; 664 softc->periph = periph; 665 softc->action = PROBE_INVALID; 666 if (cam_periph_acquire(periph) != 0) 667 return (CAM_REQ_CMP_ERR); 668 669 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 670 scsi_devise_transport(periph->path); 671 672 /* 673 * Ensure we've waited at least a bus settle 674 * delay before attempting to probe the device. 675 * For HBAs that don't do bus resets, this won't make a difference. 676 */ 677 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 678 scsi_delay); 679 probeschedule(periph); 680 return(CAM_REQ_CMP); 681 } 682 683 static void 684 probeschedule(struct cam_periph *periph) 685 { 686 struct ccb_pathinq cpi; 687 union ccb *ccb; 688 probe_softc *softc; 689 690 softc = (probe_softc *)periph->softc; 691 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 692 693 xpt_path_inq(&cpi, periph->path); 694 695 /* 696 * If a device has gone away and another device, or the same one, 697 * is back in the same place, it should have a unit attention 698 * condition pending. It will not report the unit attention in 699 * response to an inquiry, which may leave invalid transfer 700 * negotiations in effect. The TUR will reveal the unit attention 701 * condition. Only send the TUR for lun 0, since some devices 702 * will get confused by commands other than inquiry to non-existent 703 * luns. If you think a device has gone away start your scan from 704 * lun 0. This will insure that any bogus transfer settings are 705 * invalidated. 706 * 707 * If we haven't seen the device before and the controller supports 708 * some kind of transfer negotiation, negotiate with the first 709 * sent command if no bus reset was performed at startup. This 710 * ensures that the device is not confused by transfer negotiation 711 * settings left over by loader or BIOS action. 712 */ 713 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 714 && (ccb->ccb_h.target_lun == 0)) { 715 PROBE_SET_ACTION(softc, PROBE_TUR); 716 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 717 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 718 proberequestdefaultnegotiation(periph); 719 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 720 } else { 721 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 722 } 723 724 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 725 softc->flags |= PROBE_NO_ANNOUNCE; 726 else 727 softc->flags &= ~PROBE_NO_ANNOUNCE; 728 729 if (cpi.hba_misc & PIM_EXTLUNS) 730 softc->flags |= PROBE_EXTLUN; 731 else 732 softc->flags &= ~PROBE_EXTLUN; 733 734 xpt_schedule(periph, CAM_PRIORITY_XPT); 735 } 736 737 static void 738 probestart(struct cam_periph *periph, union ccb *start_ccb) 739 { 740 /* Probe the device that our peripheral driver points to */ 741 struct ccb_scsiio *csio; 742 probe_softc *softc; 743 744 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 745 746 softc = (probe_softc *)periph->softc; 747 csio = &start_ccb->csio; 748 again: 749 750 switch (softc->action) { 751 case PROBE_TUR: 752 case PROBE_TUR_FOR_NEGOTIATION: 753 case PROBE_DV_EXIT: 754 { 755 scsi_test_unit_ready(csio, 756 /*retries*/4, 757 probedone, 758 MSG_SIMPLE_Q_TAG, 759 SSD_FULL_SIZE, 760 /*timeout*/60000); 761 break; 762 } 763 case PROBE_INQUIRY: 764 case PROBE_FULL_INQUIRY: 765 { 766 u_int inquiry_len; 767 struct scsi_inquiry_data *inq_buf; 768 769 inq_buf = &periph->path->device->inq_data; 770 771 /* 772 * If the device is currently configured, we calculate an 773 * MD5 checksum of the inquiry data, and if the serial number 774 * length is greater than 0, add the serial number data 775 * into the checksum as well. Once the inquiry and the 776 * serial number check finish, we attempt to figure out 777 * whether we still have the same device. 778 */ 779 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 780 softc->flags &= ~PROBE_INQUIRY_CKSUM; 781 } else if ((softc->flags & PROBE_INQUIRY_CKSUM) == 0) { 782 MD5Init(&softc->context); 783 MD5Update(&softc->context, (unsigned char *)inq_buf, 784 sizeof(struct scsi_inquiry_data)); 785 if (periph->path->device->serial_num_len > 0) { 786 MD5Update(&softc->context, 787 periph->path->device->serial_num, 788 periph->path->device->serial_num_len); 789 } 790 MD5Final(softc->digest, &softc->context); 791 softc->flags |= PROBE_INQUIRY_CKSUM; 792 } 793 794 if (softc->action == PROBE_INQUIRY) 795 inquiry_len = SHORT_INQUIRY_LENGTH; 796 else 797 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 798 799 /* 800 * Some parallel SCSI devices fail to send an 801 * ignore wide residue message when dealing with 802 * odd length inquiry requests. Round up to be 803 * safe. 804 */ 805 inquiry_len = roundup2(inquiry_len, 2); 806 807 scsi_inquiry(csio, 808 /*retries*/4, 809 probedone, 810 MSG_SIMPLE_Q_TAG, 811 (uint8_t *)inq_buf, 812 inquiry_len, 813 /*evpd*/FALSE, 814 /*page_code*/0, 815 SSD_MIN_SIZE, 816 /*timeout*/60 * 1000); 817 break; 818 } 819 case PROBE_REPORT_LUNS: 820 { 821 void *rp; 822 823 rp = malloc(periph->path->target->rpl_size, 824 M_CAMXPT, M_NOWAIT | M_ZERO); 825 if (rp == NULL) { 826 struct scsi_inquiry_data *inq_buf; 827 inq_buf = &periph->path->device->inq_data; 828 xpt_print(periph->path, 829 "Unable to alloc report luns storage\n"); 830 if (INQ_DATA_TQ_ENABLED(inq_buf)) 831 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 832 else 833 PROBE_SET_ACTION(softc, 834 PROBE_SUPPORTED_VPD_LIST); 835 goto again; 836 } 837 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 838 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 839 SSD_FULL_SIZE, 60000); 840 break; 841 } 842 case PROBE_MODE_SENSE: 843 { 844 void *mode_buf; 845 int mode_buf_len; 846 847 mode_buf_len = sizeof(struct scsi_mode_header_6) 848 + sizeof(struct scsi_mode_blk_desc) 849 + sizeof(struct scsi_control_page); 850 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 851 if (mode_buf != NULL) { 852 scsi_mode_sense(csio, 853 /*retries*/4, 854 probedone, 855 MSG_SIMPLE_Q_TAG, 856 /*dbd*/FALSE, 857 SMS_PAGE_CTRL_CURRENT, 858 SMS_CONTROL_MODE_PAGE, 859 mode_buf, 860 mode_buf_len, 861 SSD_FULL_SIZE, 862 /*timeout*/60000); 863 break; 864 } 865 xpt_print(periph->path, 866 "Unable to mode sense control page - malloc failure\n"); 867 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 868 } 869 /* FALLTHROUGH */ 870 case PROBE_SUPPORTED_VPD_LIST: 871 { 872 struct scsi_vpd_supported_page_list *vpd_list; 873 struct cam_ed *device; 874 875 vpd_list = NULL; 876 device = periph->path->device; 877 878 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 879 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 880 M_NOWAIT | M_ZERO); 881 882 if (vpd_list != NULL) { 883 scsi_inquiry(csio, 884 /*retries*/4, 885 probedone, 886 MSG_SIMPLE_Q_TAG, 887 (uint8_t *)vpd_list, 888 sizeof(*vpd_list), 889 /*evpd*/TRUE, 890 SVPD_SUPPORTED_PAGE_LIST, 891 SSD_MIN_SIZE, 892 /*timeout*/60 * 1000); 893 break; 894 } 895 done: 896 /* 897 * We'll have to do without, let our probedone 898 * routine finish up for us. 899 */ 900 start_ccb->csio.data_ptr = NULL; 901 cam_freeze_devq(periph->path); 902 cam_periph_doacquire(periph); 903 probedone(periph, start_ccb); 904 return; 905 } 906 case PROBE_DEVICE_ID: 907 { 908 struct scsi_vpd_device_id *devid; 909 910 devid = NULL; 911 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 912 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 913 M_NOWAIT | M_ZERO); 914 915 if (devid != NULL) { 916 scsi_inquiry(csio, 917 /*retries*/4, 918 probedone, 919 MSG_SIMPLE_Q_TAG, 920 (uint8_t *)devid, 921 SVPD_DEVICE_ID_MAX_SIZE, 922 /*evpd*/TRUE, 923 SVPD_DEVICE_ID, 924 SSD_MIN_SIZE, 925 /*timeout*/60 * 1000); 926 break; 927 } 928 goto done; 929 } 930 case PROBE_EXTENDED_INQUIRY: 931 { 932 struct scsi_vpd_extended_inquiry_data *ext_inq; 933 934 ext_inq = NULL; 935 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 936 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 937 M_NOWAIT | M_ZERO); 938 939 if (ext_inq != NULL) { 940 scsi_inquiry(csio, 941 /*retries*/4, 942 probedone, 943 MSG_SIMPLE_Q_TAG, 944 (uint8_t *)ext_inq, 945 sizeof(*ext_inq), 946 /*evpd*/TRUE, 947 SVPD_EXTENDED_INQUIRY_DATA, 948 SSD_MIN_SIZE, 949 /*timeout*/60 * 1000); 950 break; 951 } 952 /* 953 * We'll have to do without, let our probedone 954 * routine finish up for us. 955 */ 956 goto done; 957 } 958 case PROBE_SERIAL_NUM: 959 { 960 struct scsi_vpd_unit_serial_number *serial_buf; 961 struct cam_ed* device; 962 963 serial_buf = NULL; 964 device = periph->path->device; 965 if (device->serial_num != NULL) { 966 free(device->serial_num, M_CAMXPT); 967 device->serial_num = NULL; 968 device->serial_num_len = 0; 969 } 970 971 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 972 serial_buf = (struct scsi_vpd_unit_serial_number *) 973 malloc(sizeof(*serial_buf), M_CAMXPT, 974 M_NOWAIT|M_ZERO); 975 976 if (serial_buf != NULL) { 977 scsi_inquiry(csio, 978 /*retries*/4, 979 probedone, 980 MSG_SIMPLE_Q_TAG, 981 (uint8_t *)serial_buf, 982 sizeof(*serial_buf), 983 /*evpd*/TRUE, 984 SVPD_UNIT_SERIAL_NUMBER, 985 SSD_MIN_SIZE, 986 /*timeout*/60 * 1000); 987 break; 988 } 989 goto done; 990 } 991 case PROBE_INQUIRY_BASIC_DV1: 992 case PROBE_INQUIRY_BASIC_DV2: 993 { 994 u_int inquiry_len; 995 struct scsi_inquiry_data *inq_buf; 996 997 inq_buf = &periph->path->device->inq_data; 998 inquiry_len = roundup2(SID_ADDITIONAL_LENGTH(inq_buf), 2); 999 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 1000 if (inq_buf == NULL) { 1001 xpt_print(periph->path, 1002 "malloc failure- skipping Basic Domain Validation\n"); 1003 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1004 scsi_test_unit_ready(csio, 1005 /*retries*/4, 1006 probedone, 1007 MSG_SIMPLE_Q_TAG, 1008 SSD_FULL_SIZE, 1009 /*timeout*/60000); 1010 break; 1011 } 1012 1013 scsi_inquiry(csio, 1014 /*retries*/4, 1015 probedone, 1016 MSG_SIMPLE_Q_TAG, 1017 (uint8_t *)inq_buf, 1018 inquiry_len, 1019 /*evpd*/FALSE, 1020 /*page_code*/0, 1021 SSD_MIN_SIZE, 1022 /*timeout*/60 * 1000); 1023 break; 1024 } 1025 default: 1026 panic("probestart: invalid action state 0x%x\n", softc->action); 1027 } 1028 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1029 cam_periph_doacquire(periph); 1030 xpt_action(start_ccb); 1031 } 1032 1033 static void 1034 proberequestdefaultnegotiation(struct cam_periph *periph) 1035 { 1036 struct ccb_trans_settings cts; 1037 1038 memset(&cts, 0, sizeof(cts)); 1039 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1040 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1041 cts.type = CTS_TYPE_USER_SETTINGS; 1042 xpt_action((union ccb *)&cts); 1043 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1044 return; 1045 } 1046 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1047 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1048 xpt_action((union ccb *)&cts); 1049 } 1050 1051 /* 1052 * Backoff Negotiation Code- only pertinent for SPI devices. 1053 */ 1054 static int 1055 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1056 { 1057 struct ccb_trans_settings cts; 1058 struct ccb_trans_settings_spi *spi; 1059 1060 memset(&cts, 0, sizeof (cts)); 1061 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1062 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1063 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1064 xpt_action((union ccb *)&cts); 1065 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1066 if (bootverbose) { 1067 xpt_print(periph->path, 1068 "failed to get current device settings\n"); 1069 } 1070 return (0); 1071 } 1072 if (cts.transport != XPORT_SPI) { 1073 if (bootverbose) { 1074 xpt_print(periph->path, "not SPI transport\n"); 1075 } 1076 return (0); 1077 } 1078 spi = &cts.xport_specific.spi; 1079 1080 /* 1081 * We cannot renegotiate sync rate if we don't have one. 1082 */ 1083 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1084 if (bootverbose) { 1085 xpt_print(periph->path, "no sync rate known\n"); 1086 } 1087 return (0); 1088 } 1089 1090 /* 1091 * We'll assert that we don't have to touch PPR options- the 1092 * SIM will see what we do with period and offset and adjust 1093 * the PPR options as appropriate. 1094 */ 1095 1096 /* 1097 * A sync rate with unknown or zero offset is nonsensical. 1098 * A sync period of zero means Async. 1099 */ 1100 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1101 || spi->sync_offset == 0 || spi->sync_period == 0) { 1102 if (bootverbose) { 1103 xpt_print(periph->path, "no sync rate available\n"); 1104 } 1105 return (0); 1106 } 1107 1108 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1109 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1110 ("hit async: giving up on DV\n")); 1111 return (0); 1112 } 1113 1114 /* 1115 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1116 * We don't try to remember 'last' settings to see if the SIM actually 1117 * gets into the speed we want to set. We check on the SIM telling 1118 * us that a requested speed is bad, but otherwise don't try and 1119 * check the speed due to the asynchronous and handshake nature 1120 * of speed setting. 1121 */ 1122 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1123 for (;;) { 1124 spi->sync_period++; 1125 if (spi->sync_period >= 0xf) { 1126 spi->sync_period = 0; 1127 spi->sync_offset = 0; 1128 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1129 ("setting to async for DV\n")); 1130 /* 1131 * Once we hit async, we don't want to try 1132 * any more settings. 1133 */ 1134 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1135 } else if (bootverbose) { 1136 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1137 ("DV: period 0x%x\n", spi->sync_period)); 1138 printf("setting period to 0x%x\n", spi->sync_period); 1139 } 1140 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1141 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1142 xpt_action((union ccb *)&cts); 1143 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1144 break; 1145 } 1146 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1147 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1148 if (spi->sync_period == 0) { 1149 return (0); 1150 } 1151 } 1152 return (1); 1153 } 1154 1155 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1156 1157 static void 1158 probedone(struct cam_periph *periph, union ccb *done_ccb) 1159 { 1160 probe_softc *softc; 1161 struct cam_path *path; 1162 struct scsi_inquiry_data *inq_buf; 1163 uint32_t priority; 1164 1165 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1166 1167 softc = (probe_softc *)periph->softc; 1168 path = done_ccb->ccb_h.path; 1169 priority = done_ccb->ccb_h.pinfo.priority; 1170 cam_periph_assert(periph, MA_OWNED); 1171 1172 switch (softc->action) { 1173 case PROBE_TUR: 1174 { 1175 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1176 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1177 ERESTART) { 1178 outr: 1179 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1180 cam_release_devq(path, 0, 0, 0, FALSE); 1181 return; 1182 } 1183 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1184 /* Don't wedge the queue */ 1185 xpt_release_devq(done_ccb->ccb_h.path, 1186 /*count*/1, 1187 /*run_queue*/TRUE); 1188 } 1189 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1190 xpt_release_ccb(done_ccb); 1191 xpt_schedule(periph, priority); 1192 out: 1193 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1194 cam_release_devq(path, 0, 0, 0, FALSE); 1195 cam_periph_release_locked(periph); 1196 return; 1197 } 1198 case PROBE_INQUIRY: 1199 case PROBE_FULL_INQUIRY: 1200 { 1201 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1202 uint8_t periph_qual; 1203 1204 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1205 scsi_find_quirk(path->device); 1206 inq_buf = &path->device->inq_data; 1207 1208 periph_qual = SID_QUAL(inq_buf); 1209 1210 if (periph_qual == SID_QUAL_LU_CONNECTED || 1211 periph_qual == SID_QUAL_LU_OFFLINE) { 1212 /* 1213 * We conservatively request only 1214 * SHORT_INQUIRY_LEN bytes of inquiry 1215 * information during our first try 1216 * at sending an INQUIRY. If the device 1217 * has more information to give, 1218 * perform a second request specifying 1219 * the amount of information the device 1220 * is willing to give. 1221 */ 1222 if (softc->action == PROBE_INQUIRY 1223 && SID_ADDITIONAL_LENGTH(inq_buf) 1224 > SHORT_INQUIRY_LENGTH) { 1225 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1226 xpt_release_ccb(done_ccb); 1227 xpt_schedule(periph, priority); 1228 goto out; 1229 } 1230 1231 scsi_devise_transport(path); 1232 1233 if (path->device->lun_id == 0 && 1234 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1235 (SCSI_QUIRK(path->device)->quirks & 1236 CAM_QUIRK_NORPTLUNS) == 0) { 1237 PROBE_SET_ACTION(softc, 1238 PROBE_REPORT_LUNS); 1239 /* 1240 * Start with room for *one* lun. 1241 */ 1242 periph->path->target->rpl_size = 16; 1243 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1244 PROBE_SET_ACTION(softc, 1245 PROBE_MODE_SENSE); 1246 else 1247 PROBE_SET_ACTION(softc, 1248 PROBE_SUPPORTED_VPD_LIST); 1249 1250 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1251 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1252 xpt_acquire_device(path->device); 1253 } 1254 xpt_release_ccb(done_ccb); 1255 xpt_schedule(periph, priority); 1256 goto out; 1257 } else if (path->device->lun_id == 0 && 1258 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1259 (SCSI_QUIRK(path->device)->quirks & 1260 CAM_QUIRK_NORPTLUNS) == 0) { 1261 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1262 periph->path->target->rpl_size = 16; 1263 xpt_release_ccb(done_ccb); 1264 xpt_schedule(periph, priority); 1265 goto out; 1266 } 1267 } else if (cam_periph_error(done_ccb, 0, 1268 done_ccb->ccb_h.target_lun > 0 1269 ? SF_RETRY_UA|SF_QUIET_IR 1270 : SF_RETRY_UA) == 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 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 uint8_t *offset; 1415 1416 offset = ((uint8_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) == ERESTART) { 1422 goto outr; 1423 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1424 /* Don't wedge the queue */ 1425 xpt_release_devq(done_ccb->ccb_h.path, 1426 /*count*/1, /*run_queue*/TRUE); 1427 } 1428 xpt_release_ccb(done_ccb); 1429 free(mode_hdr, M_CAMXPT); 1430 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1431 xpt_schedule(periph, priority); 1432 goto out; 1433 } 1434 case PROBE_SUPPORTED_VPD_LIST: 1435 { 1436 struct ccb_scsiio *csio; 1437 struct scsi_vpd_supported_page_list *page_list; 1438 1439 csio = &done_ccb->csio; 1440 page_list = 1441 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1442 1443 if (path->device->supported_vpds != NULL) { 1444 free(path->device->supported_vpds, M_CAMXPT); 1445 path->device->supported_vpds = NULL; 1446 path->device->supported_vpds_len = 0; 1447 } 1448 1449 if (page_list == NULL) { 1450 /* 1451 * Don't process the command as it was never sent 1452 */ 1453 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1454 /* Got vpd list */ 1455 path->device->supported_vpds_len = page_list->length + 1456 SVPD_SUPPORTED_PAGES_HDR_LEN; 1457 path->device->supported_vpds = (uint8_t *)page_list; 1458 xpt_release_ccb(done_ccb); 1459 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1460 xpt_schedule(periph, priority); 1461 goto out; 1462 } else if (cam_periph_error(done_ccb, 0, 1463 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1464 goto outr; 1465 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1466 /* Don't wedge the queue */ 1467 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1468 /*run_queue*/TRUE); 1469 } 1470 1471 if (page_list) 1472 free(page_list, M_CAMXPT); 1473 /* No VPDs available, skip to device check. */ 1474 csio->data_ptr = NULL; 1475 goto probe_device_check; 1476 } 1477 case PROBE_DEVICE_ID: 1478 { 1479 struct scsi_vpd_device_id *devid; 1480 struct ccb_scsiio *csio; 1481 uint32_t length = 0; 1482 1483 csio = &done_ccb->csio; 1484 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1485 1486 /* Clean up from previous instance of this device */ 1487 if (path->device->device_id != NULL) { 1488 path->device->device_id_len = 0; 1489 free(path->device->device_id, M_CAMXPT); 1490 path->device->device_id = NULL; 1491 } 1492 1493 if (devid == NULL) { 1494 /* Don't process the command as it was never sent */ 1495 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1496 length = scsi_2btoul(devid->length); 1497 if (length != 0) { 1498 /* 1499 * NB: device_id_len is actual response 1500 * size, not buffer size. 1501 */ 1502 path->device->device_id_len = length + 1503 SVPD_DEVICE_ID_HDR_LEN; 1504 path->device->device_id = (uint8_t *)devid; 1505 } 1506 } else if (cam_periph_error(done_ccb, 0, 1507 SF_RETRY_UA) == ERESTART) { 1508 goto outr; 1509 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1510 /* Don't wedge the queue */ 1511 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1512 /*run_queue*/TRUE); 1513 } 1514 1515 /* Free the device id space if we don't use it */ 1516 if (devid && length == 0) 1517 free(devid, M_CAMXPT); 1518 xpt_release_ccb(done_ccb); 1519 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1520 xpt_schedule(periph, priority); 1521 goto out; 1522 } 1523 case PROBE_EXTENDED_INQUIRY: { 1524 struct scsi_vpd_extended_inquiry_data *ext_inq; 1525 struct ccb_scsiio *csio; 1526 int32_t length = 0; 1527 1528 csio = &done_ccb->csio; 1529 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1530 csio->data_ptr; 1531 if (path->device->ext_inq != NULL) { 1532 path->device->ext_inq_len = 0; 1533 free(path->device->ext_inq, M_CAMXPT); 1534 path->device->ext_inq = NULL; 1535 } 1536 1537 if (ext_inq == NULL) { 1538 /* Don't process the command as it was never sent */ 1539 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1540 length = scsi_2btoul(ext_inq->page_length) + 1541 __offsetof(struct scsi_vpd_extended_inquiry_data, 1542 flags1); 1543 length = min(length, sizeof(*ext_inq)); 1544 length -= csio->resid; 1545 if (length > 0) { 1546 path->device->ext_inq_len = length; 1547 path->device->ext_inq = (uint8_t *)ext_inq; 1548 } 1549 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1550 ERESTART) { 1551 goto outr; 1552 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1553 /* Don't wedge the queue */ 1554 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1555 /*run_queue*/TRUE); 1556 } 1557 1558 /* Free the device id space if we don't use it */ 1559 if (ext_inq && length <= 0) 1560 free(ext_inq, M_CAMXPT); 1561 xpt_release_ccb(done_ccb); 1562 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1563 xpt_schedule(periph, priority); 1564 goto out; 1565 } 1566 1567 probe_device_check: 1568 case PROBE_SERIAL_NUM: 1569 { 1570 struct ccb_scsiio *csio; 1571 struct scsi_vpd_unit_serial_number *serial_buf; 1572 uint32_t priority; 1573 int changed; 1574 int have_serialnum; 1575 1576 changed = 1; 1577 have_serialnum = 0; 1578 csio = &done_ccb->csio; 1579 priority = done_ccb->ccb_h.pinfo.priority; 1580 serial_buf = 1581 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1582 1583 if (serial_buf == NULL) { 1584 /* 1585 * Don't process the command as it was never sent 1586 */ 1587 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1588 && (serial_buf->length > 0)) { 1589 have_serialnum = 1; 1590 path->device->serial_num = 1591 (uint8_t *)malloc((serial_buf->length + 1), 1592 M_CAMXPT, M_NOWAIT); 1593 if (path->device->serial_num != NULL) { 1594 int start, slen; 1595 1596 start = strspn(serial_buf->serial_num, " "); 1597 slen = serial_buf->length - start; 1598 if (slen <= 0) { 1599 /* 1600 * SPC5r05 says that an all-space serial 1601 * number means no product serial number 1602 * is available 1603 */ 1604 slen = 0; 1605 } 1606 /* 1607 * In apparent violation of the spec, some 1608 * devices pad their serial numbers with 1609 * trailing spaces. Remove them. 1610 */ 1611 while (slen > 0 && 1612 serial_buf->serial_num[start + slen - 1] == ' ') 1613 slen--; 1614 memcpy(path->device->serial_num, 1615 &serial_buf->serial_num[start], slen); 1616 path->device->serial_num_len = slen; 1617 path->device->serial_num[slen] = '\0'; 1618 } 1619 } else if (cam_periph_error(done_ccb, 0, 1620 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1621 goto outr; 1622 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1623 /* Don't wedge the queue */ 1624 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1625 /*run_queue*/TRUE); 1626 } 1627 1628 /* 1629 * Let's see if we have seen this device before. 1630 */ 1631 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1632 MD5_CTX context; 1633 uint8_t digest[16]; 1634 1635 MD5Init(&context); 1636 1637 MD5Update(&context, 1638 (unsigned char *)&path->device->inq_data, 1639 sizeof(struct scsi_inquiry_data)); 1640 1641 if (have_serialnum) 1642 MD5Update(&context, path->device->serial_num, 1643 path->device->serial_num_len); 1644 1645 MD5Final(digest, &context); 1646 if (bcmp(softc->digest, digest, 16) == 0) 1647 changed = 0; 1648 1649 /* 1650 * XXX Do we need to do a TUR in order to ensure 1651 * that the device really hasn't changed??? 1652 */ 1653 if ((changed != 0) 1654 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1655 xpt_async(AC_LOST_DEVICE, path, NULL); 1656 } 1657 if (serial_buf != NULL) 1658 free(serial_buf, M_CAMXPT); 1659 1660 if (changed != 0) { 1661 /* 1662 * Now that we have all the necessary 1663 * information to safely perform transfer 1664 * negotiations... Controllers don't perform 1665 * any negotiation or tagged queuing until 1666 * after the first XPT_SET_TRAN_SETTINGS ccb is 1667 * received. So, on a new device, just retrieve 1668 * the user settings, and set them as the current 1669 * settings to set the device up. 1670 */ 1671 proberequestdefaultnegotiation(periph); 1672 xpt_release_ccb(done_ccb); 1673 1674 /* 1675 * Perform a TUR to allow the controller to 1676 * perform any necessary transfer negotiation. 1677 */ 1678 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1679 xpt_schedule(periph, priority); 1680 goto out; 1681 } 1682 xpt_release_ccb(done_ccb); 1683 break; 1684 } 1685 case PROBE_TUR_FOR_NEGOTIATION: 1686 case PROBE_DV_EXIT: 1687 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1688 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1689 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1690 goto outr; 1691 } 1692 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1693 /* Don't wedge the queue */ 1694 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1695 /*run_queue*/TRUE); 1696 } 1697 /* 1698 * Do Domain Validation for lun 0 on devices that claim 1699 * to support Synchronous Transfer modes. 1700 */ 1701 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1702 && done_ccb->ccb_h.target_lun == 0 1703 && (path->device->inq_data.flags & SID_Sync) != 0 1704 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1705 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1706 ("Begin Domain Validation\n")); 1707 path->device->flags |= CAM_DEV_IN_DV; 1708 xpt_release_ccb(done_ccb); 1709 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1710 xpt_schedule(periph, priority); 1711 goto out; 1712 } 1713 if (softc->action == PROBE_DV_EXIT) { 1714 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1715 ("Leave Domain Validation\n")); 1716 } 1717 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1718 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1719 xpt_acquire_device(path->device); 1720 } 1721 path->device->flags &= 1722 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1723 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1724 /* Inform the XPT that a new device has been found */ 1725 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1726 xpt_action(done_ccb); 1727 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1728 done_ccb); 1729 } 1730 PROBE_SET_ACTION(softc, PROBE_DONE); 1731 xpt_release_ccb(done_ccb); 1732 break; 1733 case PROBE_INQUIRY_BASIC_DV1: 1734 case PROBE_INQUIRY_BASIC_DV2: 1735 { 1736 struct scsi_inquiry_data *nbuf; 1737 struct ccb_scsiio *csio; 1738 1739 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1740 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1741 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1742 goto outr; 1743 } 1744 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1745 /* Don't wedge the queue */ 1746 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1747 /*run_queue*/TRUE); 1748 } 1749 csio = &done_ccb->csio; 1750 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1751 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1752 xpt_print(path, 1753 "inquiry data fails comparison at DV%d step\n", 1754 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1755 if (proberequestbackoff(periph, path->device)) { 1756 path->device->flags &= ~CAM_DEV_IN_DV; 1757 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1758 } else { 1759 /* give up */ 1760 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1761 } 1762 free(nbuf, M_CAMXPT); 1763 xpt_release_ccb(done_ccb); 1764 xpt_schedule(periph, priority); 1765 goto out; 1766 } 1767 free(nbuf, M_CAMXPT); 1768 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1769 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1770 xpt_release_ccb(done_ccb); 1771 xpt_schedule(periph, priority); 1772 goto out; 1773 } 1774 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1775 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1776 ("Leave Domain Validation Successfully\n")); 1777 } 1778 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1779 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1780 xpt_acquire_device(path->device); 1781 } 1782 path->device->flags &= 1783 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1784 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1785 /* Inform the XPT that a new device has been found */ 1786 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1787 xpt_action(done_ccb); 1788 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1789 done_ccb); 1790 } 1791 PROBE_SET_ACTION(softc, PROBE_DONE); 1792 xpt_release_ccb(done_ccb); 1793 break; 1794 } 1795 default: 1796 panic("probedone: invalid action state 0x%x\n", softc->action); 1797 } 1798 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1799 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1800 done_ccb->ccb_h.status = CAM_REQ_CMP; 1801 xpt_done(done_ccb); 1802 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1803 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1804 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1805 cam_release_devq(path, 0, 0, 0, FALSE); 1806 cam_periph_release_locked(periph); 1807 cam_periph_invalidate(periph); 1808 cam_periph_release_locked(periph); 1809 } else { 1810 probeschedule(periph); 1811 goto out; 1812 } 1813 } 1814 1815 static void 1816 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1817 probe_flags flags) 1818 { 1819 struct cam_path *tp; 1820 struct scsi_report_luns_data *old; 1821 u_int idx1, idx2, nlun_old, nlun_new; 1822 lun_id_t this_lun; 1823 uint8_t *ol, *nl; 1824 1825 if (path->target == NULL) { 1826 return; 1827 } 1828 mtx_lock(&path->target->luns_mtx); 1829 old = path->target->luns; 1830 path->target->luns = new; 1831 mtx_unlock(&path->target->luns_mtx); 1832 if (old == NULL) 1833 return; 1834 nlun_old = scsi_4btoul(old->length) / 8; 1835 nlun_new = scsi_4btoul(new->length) / 8; 1836 1837 /* 1838 * We are not going to assume sorted lists. Deal. 1839 */ 1840 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1841 ol = old->luns[idx1].lundata; 1842 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1843 nl = new->luns[idx2].lundata; 1844 if (memcmp(nl, ol, 8) == 0) { 1845 break; 1846 } 1847 } 1848 if (idx2 < nlun_new) { 1849 continue; 1850 } 1851 /* 1852 * An 'old' item not in the 'new' list. 1853 * Nuke it. Except that if it is lun 0, 1854 * that would be what the probe state 1855 * machine is currently working on, 1856 * so we won't do that. 1857 */ 1858 CAM_GET_LUN(old, idx1, this_lun); 1859 if (this_lun == 0) { 1860 continue; 1861 } 1862 1863 /* 1864 * We also cannot nuke it if it is 1865 * not in a lun format we understand 1866 * and replace the LUN with a "simple" LUN 1867 * if that is all the HBA supports. 1868 */ 1869 if (!(flags & PROBE_EXTLUN)) { 1870 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1871 continue; 1872 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1873 } 1874 1875 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1876 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1877 xpt_async(AC_LOST_DEVICE, tp, NULL); 1878 xpt_free_path(tp); 1879 } 1880 } 1881 free(old, M_CAMXPT); 1882 } 1883 1884 static void 1885 probecleanup(struct cam_periph *periph) 1886 { 1887 free(periph->softc, M_CAMXPT); 1888 } 1889 1890 static void 1891 scsi_find_quirk(struct cam_ed *device) 1892 { 1893 struct scsi_quirk_entry *quirk; 1894 caddr_t match; 1895 1896 match = cam_quirkmatch((caddr_t)&device->inq_data, 1897 (caddr_t)scsi_quirk_table, 1898 nitems(scsi_quirk_table), 1899 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1900 1901 if (match == NULL) 1902 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1903 1904 quirk = (struct scsi_quirk_entry *)match; 1905 device->quirk = quirk; 1906 device->mintags = quirk->mintags; 1907 device->maxtags = quirk->maxtags; 1908 } 1909 1910 typedef struct { 1911 union ccb *request_ccb; 1912 struct ccb_pathinq *cpi; 1913 int counter; 1914 int lunindex[0]; 1915 } scsi_scan_bus_info; 1916 1917 /* 1918 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1919 * As the scan progresses, scsi_scan_bus is used as the 1920 * callback on completion function. 1921 */ 1922 static void 1923 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1924 { 1925 struct mtx *mtx; 1926 1927 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1928 ("scsi_scan_bus\n")); 1929 switch (request_ccb->ccb_h.func_code) { 1930 case XPT_SCAN_BUS: 1931 case XPT_SCAN_TGT: 1932 { 1933 scsi_scan_bus_info *scan_info; 1934 union ccb *work_ccb, *reset_ccb; 1935 struct cam_path *path; 1936 u_int i; 1937 u_int low_target, max_target; 1938 u_int initiator_id; 1939 1940 /* Find out the characteristics of the bus */ 1941 work_ccb = xpt_alloc_ccb_nowait(); 1942 if (work_ccb == NULL) { 1943 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1944 xpt_done(request_ccb); 1945 return; 1946 } 1947 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1948 request_ccb->ccb_h.pinfo.priority); 1949 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1950 xpt_action(work_ccb); 1951 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1952 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1953 xpt_free_ccb(work_ccb); 1954 xpt_done(request_ccb); 1955 return; 1956 } 1957 1958 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1959 /* 1960 * Can't scan the bus on an adapter that 1961 * cannot perform the initiator role. 1962 */ 1963 request_ccb->ccb_h.status = CAM_REQ_CMP; 1964 xpt_free_ccb(work_ccb); 1965 xpt_done(request_ccb); 1966 return; 1967 } 1968 1969 /* We may need to reset bus first, if we haven't done it yet. */ 1970 if ((work_ccb->cpi.hba_inquiry & 1971 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1972 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1973 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1974 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1975 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1976 CAM_PRIORITY_NONE); 1977 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1978 xpt_action(reset_ccb); 1979 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1980 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1981 xpt_free_ccb(reset_ccb); 1982 xpt_free_ccb(work_ccb); 1983 xpt_done(request_ccb); 1984 return; 1985 } 1986 xpt_free_ccb(reset_ccb); 1987 } 1988 1989 /* Save some state for use while we probe for devices */ 1990 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1991 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1992 if (scan_info == NULL) { 1993 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1994 xpt_free_ccb(work_ccb); 1995 xpt_done(request_ccb); 1996 return; 1997 } 1998 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1999 ("SCAN start for %p\n", scan_info)); 2000 scan_info->request_ccb = request_ccb; 2001 scan_info->cpi = &work_ccb->cpi; 2002 2003 /* Cache on our stack so we can work asynchronously */ 2004 max_target = scan_info->cpi->max_target; 2005 low_target = 0; 2006 initiator_id = scan_info->cpi->initiator_id; 2007 2008 /* 2009 * We can scan all targets in parallel, or do it sequentially. 2010 */ 2011 2012 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2013 max_target = low_target = request_ccb->ccb_h.target_id; 2014 scan_info->counter = 0; 2015 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2016 max_target = 0; 2017 scan_info->counter = 0; 2018 } else { 2019 scan_info->counter = scan_info->cpi->max_target + 1; 2020 if (scan_info->cpi->initiator_id < scan_info->counter) { 2021 scan_info->counter--; 2022 } 2023 } 2024 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2025 mtx_unlock(mtx); 2026 2027 for (i = low_target; i <= max_target; i++) { 2028 cam_status status; 2029 if (i == initiator_id) 2030 continue; 2031 2032 status = xpt_create_path(&path, NULL, 2033 request_ccb->ccb_h.path_id, 2034 i, 0); 2035 if (status != CAM_REQ_CMP) { 2036 printf( 2037 "scsi_scan_bus: xpt_create_path failed with status %#x, bus scan halted\n", 2038 status); 2039 free(scan_info, M_CAMXPT); 2040 request_ccb->ccb_h.status = status; 2041 xpt_free_ccb(work_ccb); 2042 xpt_done(request_ccb); 2043 break; 2044 } 2045 work_ccb = xpt_alloc_ccb_nowait(); 2046 if (work_ccb == NULL) { 2047 xpt_free_ccb((union ccb *)scan_info->cpi); 2048 free(scan_info, M_CAMXPT); 2049 xpt_free_path(path); 2050 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2051 xpt_done(request_ccb); 2052 break; 2053 } 2054 xpt_setup_ccb(&work_ccb->ccb_h, path, 2055 request_ccb->ccb_h.pinfo.priority); 2056 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2057 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2058 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2059 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2060 work_ccb->crcn.flags = request_ccb->crcn.flags; 2061 xpt_action(work_ccb); 2062 } 2063 2064 mtx_lock(mtx); 2065 break; 2066 } 2067 case XPT_SCAN_LUN: 2068 { 2069 cam_status status; 2070 struct cam_path *path, *oldpath; 2071 scsi_scan_bus_info *scan_info; 2072 struct cam_et *target; 2073 struct cam_ed *device, *nextdev; 2074 int next_target; 2075 path_id_t path_id; 2076 target_id_t target_id; 2077 lun_id_t lun_id; 2078 2079 oldpath = request_ccb->ccb_h.path; 2080 2081 status = cam_ccb_status(request_ccb); 2082 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2083 path_id = request_ccb->ccb_h.path_id; 2084 target_id = request_ccb->ccb_h.target_id; 2085 lun_id = request_ccb->ccb_h.target_lun; 2086 target = request_ccb->ccb_h.path->target; 2087 next_target = 1; 2088 2089 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2090 mtx_lock(mtx); 2091 mtx_lock(&target->luns_mtx); 2092 if (target->luns) { 2093 lun_id_t first; 2094 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2095 2096 /* 2097 * Make sure we skip over lun 0 if it's the first member 2098 * of the list as we've actually just finished probing 2099 * it. 2100 */ 2101 CAM_GET_LUN(target->luns, 0, first); 2102 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2103 scan_info->lunindex[target_id]++; 2104 } 2105 2106 /* 2107 * Skip any LUNs that the HBA can't deal with. 2108 */ 2109 while (scan_info->lunindex[target_id] < nluns) { 2110 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2111 CAM_GET_LUN(target->luns, 2112 scan_info->lunindex[target_id], 2113 lun_id); 2114 break; 2115 } 2116 2117 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2118 scan_info->lunindex[target_id])) { 2119 CAM_GET_SIMPLE_LUN(target->luns, 2120 scan_info->lunindex[target_id], 2121 lun_id); 2122 break; 2123 } 2124 2125 scan_info->lunindex[target_id]++; 2126 } 2127 2128 if (scan_info->lunindex[target_id] < nluns) { 2129 mtx_unlock(&target->luns_mtx); 2130 next_target = 0; 2131 CAM_DEBUG(request_ccb->ccb_h.path, 2132 CAM_DEBUG_PROBE, 2133 ("next lun to try at index %u is %jx\n", 2134 scan_info->lunindex[target_id], 2135 (uintmax_t)lun_id)); 2136 scan_info->lunindex[target_id]++; 2137 } else { 2138 mtx_unlock(&target->luns_mtx); 2139 /* We're done with scanning all luns. */ 2140 } 2141 } else { 2142 mtx_unlock(&target->luns_mtx); 2143 device = request_ccb->ccb_h.path->device; 2144 /* Continue sequential LUN scan if: */ 2145 /* -- we have more LUNs that need recheck */ 2146 mtx_lock(&target->bus->eb_mtx); 2147 nextdev = device; 2148 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2149 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2150 break; 2151 mtx_unlock(&target->bus->eb_mtx); 2152 if (nextdev != NULL) { 2153 next_target = 0; 2154 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2155 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2156 next_target = 1; 2157 /* -- this LUN is connected and its SCSI version 2158 * allows more LUNs. */ 2159 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2160 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2161 CAN_SRCH_HI_DENSE(device)) 2162 next_target = 0; 2163 /* -- this LUN is disconnected, its SCSI version 2164 * allows more LUNs and we guess they may be. */ 2165 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2166 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2167 CAN_SRCH_HI_SPARSE(device)) 2168 next_target = 0; 2169 } 2170 if (next_target == 0) { 2171 lun_id++; 2172 if (lun_id > scan_info->cpi->max_lun) 2173 next_target = 1; 2174 } 2175 } 2176 2177 /* 2178 * Check to see if we scan any further luns. 2179 */ 2180 if (next_target) { 2181 int done; 2182 2183 /* 2184 * Free the current request path- we're done with it. 2185 */ 2186 xpt_free_path(oldpath); 2187 hop_again: 2188 done = 0; 2189 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2190 done = 1; 2191 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2192 scan_info->counter++; 2193 if (scan_info->counter == 2194 scan_info->cpi->initiator_id) { 2195 scan_info->counter++; 2196 } 2197 if (scan_info->counter >= 2198 scan_info->cpi->max_target+1) { 2199 done = 1; 2200 } 2201 } else { 2202 scan_info->counter--; 2203 if (scan_info->counter == 0) { 2204 done = 1; 2205 } 2206 } 2207 if (done) { 2208 mtx_unlock(mtx); 2209 xpt_free_ccb(request_ccb); 2210 xpt_free_ccb((union ccb *)scan_info->cpi); 2211 request_ccb = scan_info->request_ccb; 2212 CAM_DEBUG(request_ccb->ccb_h.path, 2213 CAM_DEBUG_TRACE, 2214 ("SCAN done for %p\n", scan_info)); 2215 free(scan_info, M_CAMXPT); 2216 request_ccb->ccb_h.status = CAM_REQ_CMP; 2217 xpt_done(request_ccb); 2218 break; 2219 } 2220 2221 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2222 mtx_unlock(mtx); 2223 xpt_free_ccb(request_ccb); 2224 break; 2225 } 2226 status = xpt_create_path(&path, NULL, 2227 scan_info->request_ccb->ccb_h.path_id, 2228 scan_info->counter, 0); 2229 if (status != CAM_REQ_CMP) { 2230 mtx_unlock(mtx); 2231 printf( 2232 "scsi_scan_bus: xpt_create_path failed with status %#x, bus scan halted\n", 2233 status); 2234 xpt_free_ccb(request_ccb); 2235 xpt_free_ccb((union ccb *)scan_info->cpi); 2236 request_ccb = scan_info->request_ccb; 2237 free(scan_info, M_CAMXPT); 2238 request_ccb->ccb_h.status = status; 2239 xpt_done(request_ccb); 2240 break; 2241 } 2242 xpt_setup_ccb(&request_ccb->ccb_h, path, 2243 request_ccb->ccb_h.pinfo.priority); 2244 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2245 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2246 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2247 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2248 request_ccb->crcn.flags = 2249 scan_info->request_ccb->crcn.flags; 2250 } else { 2251 status = xpt_create_path(&path, NULL, 2252 path_id, target_id, lun_id); 2253 /* 2254 * Free the old request path- we're done with it. We 2255 * do this *after* creating the new path so that 2256 * we don't remove a target that has our lun list 2257 * in the case that lun 0 is not present. 2258 */ 2259 xpt_free_path(oldpath); 2260 if (status != CAM_REQ_CMP) { 2261 printf( 2262 "scsi_scan_bus: xpt_create_path failed with status %#x, halting LUN scan\n", 2263 status); 2264 goto hop_again; 2265 } 2266 xpt_setup_ccb(&request_ccb->ccb_h, path, 2267 request_ccb->ccb_h.pinfo.priority); 2268 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2269 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2270 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2271 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2272 request_ccb->crcn.flags = 2273 scan_info->request_ccb->crcn.flags; 2274 } 2275 mtx_unlock(mtx); 2276 xpt_action(request_ccb); 2277 break; 2278 } 2279 default: 2280 break; 2281 } 2282 } 2283 2284 static void 2285 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2286 cam_flags flags, union ccb *request_ccb) 2287 { 2288 struct ccb_pathinq cpi; 2289 cam_status status; 2290 struct cam_path *new_path; 2291 struct cam_periph *old_periph; 2292 int lock; 2293 2294 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2295 2296 memset(&cpi, 0, sizeof(cpi)); 2297 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2298 cpi.ccb_h.func_code = XPT_PATH_INQ; 2299 xpt_action((union ccb *)&cpi); 2300 2301 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2302 if (request_ccb != NULL) { 2303 request_ccb->ccb_h.status = cpi.ccb_h.status; 2304 xpt_done(request_ccb); 2305 } 2306 return; 2307 } 2308 2309 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2310 /* 2311 * Can't scan the bus on an adapter that 2312 * cannot perform the initiator role. 2313 */ 2314 if (request_ccb != NULL) { 2315 request_ccb->ccb_h.status = CAM_REQ_CMP; 2316 xpt_done(request_ccb); 2317 } 2318 return; 2319 } 2320 2321 if (request_ccb == NULL) { 2322 request_ccb = xpt_alloc_ccb_nowait(); 2323 if (request_ccb == NULL) { 2324 xpt_print(path, 2325 "scsi_scan_lun: can't allocate CCB, can't continue\n"); 2326 return; 2327 } 2328 status = xpt_create_path(&new_path, NULL, 2329 path->bus->path_id, 2330 path->target->target_id, 2331 path->device->lun_id); 2332 if (status != CAM_REQ_CMP) { 2333 xpt_print(path, 2334 "scsi_scan_lun: can't create path, can't continue\n"); 2335 xpt_free_ccb(request_ccb); 2336 return; 2337 } 2338 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2339 request_ccb->ccb_h.cbfcnp = xptscandone; 2340 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2341 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2342 request_ccb->crcn.flags = flags; 2343 } 2344 2345 lock = (xpt_path_owned(path) == 0); 2346 if (lock) 2347 xpt_path_lock(path); 2348 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2349 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2350 probe_softc *softc; 2351 2352 softc = (probe_softc *)old_periph->softc; 2353 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2354 &request_ccb->ccb_h, periph_links.tqe); 2355 } else { 2356 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2357 xpt_done(request_ccb); 2358 } 2359 } else { 2360 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2361 probestart, "probe", 2362 CAM_PERIPH_BIO, 2363 request_ccb->ccb_h.path, NULL, 0, 2364 request_ccb); 2365 2366 if (status != CAM_REQ_CMP) { 2367 xpt_print(path, 2368 "scsi_scan_lun: cam_alloc_periph returned an error, can't continue probe\n"); 2369 request_ccb->ccb_h.status = status; 2370 xpt_done(request_ccb); 2371 } 2372 } 2373 if (lock) 2374 xpt_path_unlock(path); 2375 } 2376 2377 static void 2378 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2379 { 2380 2381 xpt_free_path(done_ccb->ccb_h.path); 2382 xpt_free_ccb(done_ccb); 2383 } 2384 2385 static struct cam_ed * 2386 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2387 { 2388 struct scsi_quirk_entry *quirk; 2389 struct cam_ed *device; 2390 2391 device = xpt_alloc_device(bus, target, lun_id); 2392 if (device == NULL) 2393 return (NULL); 2394 2395 /* 2396 * Take the default quirk entry until we have inquiry 2397 * data and can determine a better quirk to use. 2398 */ 2399 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2400 device->quirk = (void *)quirk; 2401 device->mintags = quirk->mintags; 2402 device->maxtags = quirk->maxtags; 2403 bzero(&device->inq_data, sizeof(device->inq_data)); 2404 device->inq_flags = 0; 2405 device->queue_flags = 0; 2406 device->serial_num = NULL; 2407 device->serial_num_len = 0; 2408 device->device_id = NULL; 2409 device->device_id_len = 0; 2410 device->supported_vpds = NULL; 2411 device->supported_vpds_len = 0; 2412 return (device); 2413 } 2414 2415 static void 2416 scsi_devise_transport(struct cam_path *path) 2417 { 2418 struct ccb_pathinq cpi; 2419 struct ccb_trans_settings cts; 2420 struct scsi_inquiry_data *inq_buf; 2421 2422 /* Get transport information from the SIM */ 2423 memset(&cpi, 0, sizeof(cpi)); 2424 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2425 cpi.ccb_h.func_code = XPT_PATH_INQ; 2426 xpt_action((union ccb *)&cpi); 2427 2428 inq_buf = NULL; 2429 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2430 inq_buf = &path->device->inq_data; 2431 path->device->protocol = PROTO_SCSI; 2432 path->device->protocol_version = 2433 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2434 path->device->transport = cpi.transport; 2435 path->device->transport_version = cpi.transport_version; 2436 2437 /* 2438 * Any device not using SPI3 features should 2439 * be considered SPI2 or lower. 2440 */ 2441 if (inq_buf != NULL) { 2442 if (path->device->transport == XPORT_SPI 2443 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2444 && path->device->transport_version > 2) 2445 path->device->transport_version = 2; 2446 } else { 2447 struct cam_ed* otherdev; 2448 2449 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2450 otherdev != NULL; 2451 otherdev = TAILQ_NEXT(otherdev, links)) { 2452 if (otherdev != path->device) 2453 break; 2454 } 2455 2456 if (otherdev != NULL) { 2457 /* 2458 * Initially assume the same versioning as 2459 * prior luns for this target. 2460 */ 2461 path->device->protocol_version = 2462 otherdev->protocol_version; 2463 path->device->transport_version = 2464 otherdev->transport_version; 2465 } else { 2466 /* Until we know better, opt for safety */ 2467 path->device->protocol_version = 2; 2468 if (path->device->transport == XPORT_SPI) 2469 path->device->transport_version = 2; 2470 else 2471 path->device->transport_version = 0; 2472 } 2473 } 2474 2475 /* 2476 * XXX 2477 * For a device compliant with SPC-2 we should be able 2478 * to determine the transport version supported by 2479 * scrutinizing the version descriptors in the 2480 * inquiry buffer. 2481 */ 2482 2483 /* Tell the controller what we think */ 2484 memset(&cts, 0, sizeof(cts)); 2485 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2486 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2487 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2488 cts.transport = path->device->transport; 2489 cts.transport_version = path->device->transport_version; 2490 cts.protocol = path->device->protocol; 2491 cts.protocol_version = path->device->protocol_version; 2492 cts.proto_specific.valid = 0; 2493 cts.xport_specific.valid = 0; 2494 xpt_action((union ccb *)&cts); 2495 } 2496 2497 static void 2498 scsi_dev_advinfo(union ccb *start_ccb) 2499 { 2500 struct cam_ed *device; 2501 struct ccb_dev_advinfo *cdai; 2502 off_t amt; 2503 2504 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2505 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2506 device = start_ccb->ccb_h.path->device; 2507 cdai = &start_ccb->cdai; 2508 switch(cdai->buftype) { 2509 case CDAI_TYPE_SCSI_DEVID: 2510 if (cdai->flags & CDAI_FLAG_STORE) 2511 return; 2512 cdai->provsiz = device->device_id_len; 2513 if (device->device_id_len == 0) 2514 break; 2515 amt = device->device_id_len; 2516 if (cdai->provsiz > cdai->bufsiz) 2517 amt = cdai->bufsiz; 2518 memcpy(cdai->buf, device->device_id, amt); 2519 break; 2520 case CDAI_TYPE_SERIAL_NUM: 2521 if (cdai->flags & CDAI_FLAG_STORE) 2522 return; 2523 cdai->provsiz = device->serial_num_len; 2524 if (device->serial_num_len == 0) 2525 break; 2526 amt = device->serial_num_len; 2527 if (cdai->provsiz > cdai->bufsiz) 2528 amt = cdai->bufsiz; 2529 memcpy(cdai->buf, device->serial_num, amt); 2530 break; 2531 case CDAI_TYPE_PHYS_PATH: 2532 if (cdai->flags & CDAI_FLAG_STORE) { 2533 if (device->physpath != NULL) { 2534 free(device->physpath, M_CAMXPT); 2535 device->physpath = NULL; 2536 device->physpath_len = 0; 2537 } 2538 /* Clear existing buffer if zero length */ 2539 if (cdai->bufsiz == 0) 2540 break; 2541 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2542 if (device->physpath == NULL) { 2543 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2544 return; 2545 } 2546 device->physpath_len = cdai->bufsiz; 2547 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2548 } else { 2549 cdai->provsiz = device->physpath_len; 2550 if (device->physpath_len == 0) 2551 break; 2552 amt = device->physpath_len; 2553 if (cdai->provsiz > cdai->bufsiz) 2554 amt = cdai->bufsiz; 2555 memcpy(cdai->buf, device->physpath, amt); 2556 } 2557 break; 2558 case CDAI_TYPE_RCAPLONG: 2559 if (cdai->flags & CDAI_FLAG_STORE) { 2560 if (device->rcap_buf != NULL) { 2561 free(device->rcap_buf, M_CAMXPT); 2562 device->rcap_buf = NULL; 2563 } 2564 2565 device->rcap_len = cdai->bufsiz; 2566 /* Clear existing buffer if zero length */ 2567 if (cdai->bufsiz == 0) 2568 break; 2569 2570 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2571 M_NOWAIT); 2572 if (device->rcap_buf == NULL) { 2573 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2574 return; 2575 } 2576 2577 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2578 } else { 2579 cdai->provsiz = device->rcap_len; 2580 if (device->rcap_len == 0) 2581 break; 2582 amt = device->rcap_len; 2583 if (cdai->provsiz > cdai->bufsiz) 2584 amt = cdai->bufsiz; 2585 memcpy(cdai->buf, device->rcap_buf, amt); 2586 } 2587 break; 2588 case CDAI_TYPE_EXT_INQ: 2589 /* 2590 * We fetch extended inquiry data during probe, if 2591 * available. We don't allow changing it. 2592 */ 2593 if (cdai->flags & CDAI_FLAG_STORE) 2594 return; 2595 cdai->provsiz = device->ext_inq_len; 2596 if (device->ext_inq_len == 0) 2597 break; 2598 amt = device->ext_inq_len; 2599 if (cdai->provsiz > cdai->bufsiz) 2600 amt = cdai->bufsiz; 2601 memcpy(cdai->buf, device->ext_inq, amt); 2602 break; 2603 default: 2604 return; 2605 } 2606 start_ccb->ccb_h.status = CAM_REQ_CMP; 2607 2608 if (cdai->flags & CDAI_FLAG_STORE) { 2609 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2610 (void *)(uintptr_t)cdai->buftype); 2611 } 2612 } 2613 2614 static void 2615 scsi_action(union ccb *start_ccb) 2616 { 2617 2618 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2619 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2620 ("%s: ccb %p, func_code %#x should not be allocated from UMA zone\n", 2621 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2622 } 2623 2624 switch (start_ccb->ccb_h.func_code) { 2625 case XPT_SET_TRAN_SETTINGS: 2626 { 2627 scsi_set_transfer_settings(&start_ccb->cts, 2628 start_ccb->ccb_h.path, 2629 /*async_update*/FALSE); 2630 break; 2631 } 2632 case XPT_SCAN_BUS: 2633 case XPT_SCAN_TGT: 2634 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2635 break; 2636 case XPT_SCAN_LUN: 2637 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2638 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2639 start_ccb); 2640 break; 2641 case XPT_DEV_ADVINFO: 2642 { 2643 scsi_dev_advinfo(start_ccb); 2644 break; 2645 } 2646 default: 2647 xpt_action_default(start_ccb); 2648 break; 2649 } 2650 } 2651 2652 static void 2653 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2654 int async_update) 2655 { 2656 struct ccb_pathinq cpi; 2657 struct ccb_trans_settings cur_cts; 2658 struct ccb_trans_settings_scsi *scsi; 2659 struct ccb_trans_settings_scsi *cur_scsi; 2660 struct scsi_inquiry_data *inq_data; 2661 struct cam_ed *device; 2662 2663 if (path == NULL || (device = path->device) == NULL) { 2664 cts->ccb_h.status = CAM_PATH_INVALID; 2665 xpt_done((union ccb *)cts); 2666 return; 2667 } 2668 2669 if (cts->protocol == PROTO_UNKNOWN 2670 || cts->protocol == PROTO_UNSPECIFIED) { 2671 cts->protocol = device->protocol; 2672 cts->protocol_version = device->protocol_version; 2673 } 2674 2675 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2676 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2677 cts->protocol_version = device->protocol_version; 2678 2679 if (cts->protocol != device->protocol) { 2680 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2681 cts->protocol, device->protocol); 2682 cts->protocol = device->protocol; 2683 } 2684 2685 if (cts->protocol_version > device->protocol_version) { 2686 if (bootverbose) { 2687 xpt_print(path, 2688 "Down reving Protocol Version from %d to %d?\n", 2689 cts->protocol_version, 2690 device->protocol_version); 2691 } 2692 cts->protocol_version = device->protocol_version; 2693 } 2694 2695 if (cts->transport == XPORT_UNKNOWN 2696 || cts->transport == XPORT_UNSPECIFIED) { 2697 cts->transport = device->transport; 2698 cts->transport_version = device->transport_version; 2699 } 2700 2701 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2702 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2703 cts->transport_version = device->transport_version; 2704 2705 if (cts->transport != device->transport) { 2706 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2707 cts->transport, device->transport); 2708 cts->transport = device->transport; 2709 } 2710 2711 if (cts->transport_version > device->transport_version) { 2712 if (bootverbose) { 2713 xpt_print(path, 2714 "Down reving Transport Version from %d to %d?\n", 2715 cts->transport_version, 2716 device->transport_version); 2717 } 2718 cts->transport_version = device->transport_version; 2719 } 2720 2721 /* 2722 * Nothing more of interest to do unless 2723 * this is a device connected via the 2724 * SCSI protocol. 2725 */ 2726 if (cts->protocol != PROTO_SCSI) { 2727 if (async_update == FALSE) 2728 xpt_action_default((union ccb *)cts); 2729 return; 2730 } 2731 2732 inq_data = &device->inq_data; 2733 scsi = &cts->proto_specific.scsi; 2734 memset(&cpi, 0, sizeof(cpi)); 2735 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2736 cpi.ccb_h.func_code = XPT_PATH_INQ; 2737 xpt_action((union ccb *)&cpi); 2738 2739 /* SCSI specific sanity checking */ 2740 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2741 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2742 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2743 || (device->mintags == 0)) { 2744 /* 2745 * Can't tag on hardware that doesn't support tags, 2746 * doesn't have it enabled, or has broken tag support. 2747 */ 2748 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2749 } 2750 2751 if (async_update == FALSE) { 2752 /* 2753 * Perform sanity checking against what the 2754 * controller and device can do. 2755 */ 2756 memset(&cur_cts, 0, sizeof(cur_cts)); 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 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2904 /* 2905 * Delay change to use tags until after a 2906 * few commands have gone to this device so 2907 * the controller has time to perform transfer 2908 * negotiations without tagged messages getting 2909 * in the way. 2910 */ 2911 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2912 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2913 } else { 2914 xpt_stop_tags(path); 2915 } 2916 } 2917 } 2918 if (async_update == FALSE) 2919 xpt_action_default((union ccb *)cts); 2920 } 2921 2922 static void 2923 scsi_toggle_tags(struct cam_path *path) 2924 { 2925 struct cam_ed *dev; 2926 2927 /* 2928 * Give controllers a chance to renegotiate 2929 * before starting tag operations. We 2930 * "toggle" tagged queuing off then on 2931 * which causes the tag enable command delay 2932 * counter to come into effect. 2933 */ 2934 dev = path->device; 2935 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2936 || ((dev->inq_flags & SID_CmdQue) != 0 2937 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2938 struct ccb_trans_settings cts; 2939 2940 memset(&cts, 0, sizeof(cts)); 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 */ 2959 static void 2960 scsi_dev_async(uint32_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 * Allow transfer negotiation to occur in a 2990 * tag free environment and after settle delay. 2991 */ 2992 if (async_code == AC_SENT_BDR 2993 || async_code == AC_BUS_RESET) { 2994 cam_freeze_devq(&newpath); 2995 cam_release_devq(&newpath, 2996 RELSIM_RELEASE_AFTER_TIMEOUT, 2997 /*reduction*/0, 2998 /*timeout*/scsi_delay, 2999 /*getcount_only*/0); 3000 scsi_toggle_tags(&newpath); 3001 } 3002 3003 if (async_code == AC_INQ_CHANGED) { 3004 /* 3005 * We've sent a start unit command, or 3006 * something similar to a device that 3007 * may have caused its inquiry data to 3008 * change. So we re-scan the device to 3009 * refresh the inquiry data for it. 3010 */ 3011 scsi_scan_lun(newpath.periph, &newpath, 3012 CAM_EXPECT_INQ_CHANGE, NULL); 3013 } 3014 xpt_release_path(&newpath); 3015 } else if (async_code == AC_LOST_DEVICE && 3016 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3017 device->flags |= CAM_DEV_UNCONFIGURED; 3018 xpt_release_device(device); 3019 } else if (async_code == AC_TRANSFER_NEG) { 3020 struct ccb_trans_settings *settings; 3021 struct cam_path path; 3022 3023 settings = (struct ccb_trans_settings *)async_arg; 3024 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3025 device->lun_id); 3026 scsi_set_transfer_settings(settings, &path, 3027 /*async_update*/TRUE); 3028 xpt_release_path(&path); 3029 } 3030 } 3031 3032 static void 3033 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3034 { 3035 struct ccb_pathinq cpi; 3036 struct cam_path *path = periph->path; 3037 3038 cam_periph_assert(periph, MA_OWNED); 3039 3040 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3041 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3042 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3043 xpt_action((union ccb*)cts); 3044 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3045 return; 3046 3047 /* Ask the SIM for its base transfer speed */ 3048 memset(&cpi, 0, sizeof(cpi)); 3049 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3050 cpi.ccb_h.func_code = XPT_PATH_INQ; 3051 xpt_action((union ccb *)&cpi); 3052 3053 /* Report connection speed */ 3054 *speed = cpi.base_transfer_speed; 3055 *freq = 0; 3056 3057 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3058 struct ccb_trans_settings_spi *spi = 3059 &cts->xport_specific.spi; 3060 3061 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3062 && spi->sync_offset != 0) { 3063 *freq = scsi_calc_syncsrate(spi->sync_period); 3064 *speed = *freq; 3065 } 3066 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3067 *speed *= (0x01 << spi->bus_width); 3068 } 3069 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3070 struct ccb_trans_settings_fc *fc = 3071 &cts->xport_specific.fc; 3072 3073 if (fc->valid & CTS_FC_VALID_SPEED) 3074 *speed = fc->bitrate; 3075 } 3076 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3077 struct ccb_trans_settings_sas *sas = 3078 &cts->xport_specific.sas; 3079 3080 if (sas->valid & CTS_SAS_VALID_SPEED) 3081 *speed = sas->bitrate; 3082 } 3083 } 3084 3085 static void 3086 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3087 { 3088 struct ccb_trans_settings cts; 3089 u_int speed, freq, mb; 3090 3091 memset(&cts, 0, sizeof(cts)); 3092 _scsi_announce_periph(periph, &speed, &freq, &cts); 3093 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3094 return; 3095 3096 mb = speed / 1000; 3097 if (mb > 0) 3098 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3099 periph->periph_name, periph->unit_number, 3100 mb, speed % 1000); 3101 else 3102 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3103 periph->unit_number, speed); 3104 /* Report additional information about SPI connections */ 3105 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3106 struct ccb_trans_settings_spi *spi; 3107 3108 spi = &cts.xport_specific.spi; 3109 if (freq != 0) { 3110 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3111 freq % 1000, 3112 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3113 ? " DT" : "", 3114 spi->sync_offset); 3115 } 3116 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3117 && spi->bus_width > 0) { 3118 if (freq != 0) { 3119 sbuf_cat(sb, ", "); 3120 } else { 3121 sbuf_cat(sb, " ("); 3122 } 3123 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3124 } else if (freq != 0) { 3125 sbuf_putc(sb, ')'); 3126 } 3127 } 3128 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3129 struct ccb_trans_settings_fc *fc; 3130 3131 fc = &cts.xport_specific.fc; 3132 if (fc->valid & CTS_FC_VALID_WWNN) 3133 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3134 if (fc->valid & CTS_FC_VALID_WWPN) 3135 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3136 if (fc->valid & CTS_FC_VALID_PORT) 3137 sbuf_printf(sb, " PortID 0x%x", fc->port); 3138 } 3139 sbuf_putc(sb, '\n'); 3140 } 3141 3142 static void 3143 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3144 { 3145 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3146 } 3147 3148 static void 3149 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3150 { 3151 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3152 } 3153 3154 static void 3155 scsi_proto_debug_out(union ccb *ccb) 3156 { 3157 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3158 struct cam_ed *device; 3159 3160 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3161 return; 3162 3163 device = ccb->ccb_h.path->device; 3164 CAM_DEBUG(ccb->ccb_h.path, 3165 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3166 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3167 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3168 } 3169