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 #include <sys/stdarg.h> 44 45 #include <sys/lock.h> 46 #include <sys/mutex.h> 47 #include <sys/sysctl.h> 48 49 #include <cam/cam.h> 50 #include <cam/cam_ccb.h> 51 #include <cam/cam_queue.h> 52 #include <cam/cam_periph.h> 53 #include <cam/cam_sim.h> 54 #include <cam/cam_xpt.h> 55 #include <cam/cam_xpt_sim.h> 56 #include <cam/cam_xpt_periph.h> 57 #include <cam/cam_xpt_internal.h> 58 #include <cam/cam_debug.h> 59 60 #include <cam/scsi/scsi_all.h> 61 #include <cam/scsi/scsi_message.h> 62 #include <cam/scsi/scsi_pass.h> 63 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 SCSI_XPT_XPORT(ufshci, UFSHCI); 622 623 #undef SCSI_XPORT_XPORT 624 625 static struct xpt_proto_ops scsi_proto_ops = { 626 .announce_sbuf = scsi_proto_announce_sbuf, 627 .denounce_sbuf = scsi_proto_denounce_sbuf, 628 .debug_out = scsi_proto_debug_out, 629 }; 630 static struct xpt_proto scsi_proto = { 631 .proto = PROTO_SCSI, 632 .name = "scsi", 633 .ops = &scsi_proto_ops, 634 }; 635 CAM_XPT_PROTO(scsi_proto); 636 637 static void 638 probe_periph_init(void) 639 { 640 } 641 642 static cam_status 643 proberegister(struct cam_periph *periph, void *arg) 644 { 645 union ccb *request_ccb; /* CCB representing the probe request */ 646 probe_softc *softc; 647 648 request_ccb = (union ccb *)arg; 649 if (request_ccb == NULL) { 650 printf("proberegister: no probe CCB, can't register device\n"); 651 return(CAM_REQ_CMP_ERR); 652 } 653 654 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 655 656 if (softc == NULL) { 657 printf("proberegister: Unable to probe new device. Unable to allocate softc\n"); 658 return(CAM_REQ_CMP_ERR); 659 } 660 TAILQ_INIT(&softc->request_ccbs); 661 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 662 periph_links.tqe); 663 softc->flags = 0; 664 periph->softc = softc; 665 softc->periph = periph; 666 softc->action = PROBE_INVALID; 667 if (cam_periph_acquire(periph) != 0) 668 return (CAM_REQ_CMP_ERR); 669 670 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 671 scsi_devise_transport(periph->path); 672 673 /* 674 * Ensure we've waited at least a bus settle 675 * delay before attempting to probe the device. 676 * For HBAs that don't do bus resets, this won't make a difference. 677 */ 678 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 679 scsi_delay); 680 probeschedule(periph); 681 return(CAM_REQ_CMP); 682 } 683 684 static void 685 probeschedule(struct cam_periph *periph) 686 { 687 struct ccb_pathinq cpi; 688 union ccb *ccb; 689 probe_softc *softc; 690 691 softc = (probe_softc *)periph->softc; 692 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 693 694 xpt_path_inq(&cpi, periph->path); 695 696 /* 697 * If a device has gone away and another device, or the same one, 698 * is back in the same place, it should have a unit attention 699 * condition pending. It will not report the unit attention in 700 * response to an inquiry, which may leave invalid transfer 701 * negotiations in effect. The TUR will reveal the unit attention 702 * condition. Only send the TUR for lun 0, since some devices 703 * will get confused by commands other than inquiry to non-existent 704 * luns. If you think a device has gone away start your scan from 705 * lun 0. This will insure that any bogus transfer settings are 706 * invalidated. 707 * 708 * If we haven't seen the device before and the controller supports 709 * some kind of transfer negotiation, negotiate with the first 710 * sent command if no bus reset was performed at startup. This 711 * ensures that the device is not confused by transfer negotiation 712 * settings left over by loader or BIOS action. 713 */ 714 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 715 && (ccb->ccb_h.target_lun == 0)) { 716 PROBE_SET_ACTION(softc, PROBE_TUR); 717 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 718 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 719 proberequestdefaultnegotiation(periph); 720 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 721 } else { 722 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 723 } 724 725 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 726 softc->flags |= PROBE_NO_ANNOUNCE; 727 else 728 softc->flags &= ~PROBE_NO_ANNOUNCE; 729 730 if (cpi.hba_misc & PIM_EXTLUNS) 731 softc->flags |= PROBE_EXTLUN; 732 else 733 softc->flags &= ~PROBE_EXTLUN; 734 735 xpt_schedule(periph, CAM_PRIORITY_XPT); 736 } 737 738 static void 739 probestart(struct cam_periph *periph, union ccb *start_ccb) 740 { 741 /* Probe the device that our peripheral driver points to */ 742 struct ccb_scsiio *csio; 743 probe_softc *softc; 744 745 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 746 747 softc = (probe_softc *)periph->softc; 748 csio = &start_ccb->csio; 749 again: 750 751 switch (softc->action) { 752 case PROBE_TUR: 753 case PROBE_TUR_FOR_NEGOTIATION: 754 case PROBE_DV_EXIT: 755 { 756 scsi_test_unit_ready(csio, 757 /*retries*/4, 758 probedone, 759 MSG_SIMPLE_Q_TAG, 760 SSD_FULL_SIZE, 761 /*timeout*/60000); 762 break; 763 } 764 case PROBE_INQUIRY: 765 case PROBE_FULL_INQUIRY: 766 { 767 u_int inquiry_len; 768 struct scsi_inquiry_data *inq_buf; 769 770 inq_buf = &periph->path->device->inq_data; 771 772 /* 773 * If the device is currently configured, we calculate an 774 * MD5 checksum of the inquiry data, and if the serial number 775 * length is greater than 0, add the serial number data 776 * into the checksum as well. Once the inquiry and the 777 * serial number check finish, we attempt to figure out 778 * whether we still have the same device. 779 */ 780 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 781 softc->flags &= ~PROBE_INQUIRY_CKSUM; 782 } else if ((softc->flags & PROBE_INQUIRY_CKSUM) == 0) { 783 MD5Init(&softc->context); 784 MD5Update(&softc->context, (unsigned char *)inq_buf, 785 sizeof(struct scsi_inquiry_data)); 786 if (periph->path->device->serial_num_len > 0) { 787 MD5Update(&softc->context, 788 periph->path->device->serial_num, 789 periph->path->device->serial_num_len); 790 } 791 MD5Final(softc->digest, &softc->context); 792 softc->flags |= PROBE_INQUIRY_CKSUM; 793 } 794 795 if (softc->action == PROBE_INQUIRY) 796 inquiry_len = SHORT_INQUIRY_LENGTH; 797 else 798 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 799 800 /* 801 * Some parallel SCSI devices fail to send an 802 * ignore wide residue message when dealing with 803 * odd length inquiry requests. Round up to be 804 * safe. 805 */ 806 inquiry_len = roundup2(inquiry_len, 2); 807 808 scsi_inquiry(csio, 809 /*retries*/4, 810 probedone, 811 MSG_SIMPLE_Q_TAG, 812 (uint8_t *)inq_buf, 813 inquiry_len, 814 /*evpd*/FALSE, 815 /*page_code*/0, 816 SSD_MIN_SIZE, 817 /*timeout*/60 * 1000); 818 break; 819 } 820 case PROBE_REPORT_LUNS: 821 { 822 void *rp; 823 824 rp = malloc(periph->path->target->rpl_size, 825 M_CAMXPT, M_NOWAIT | M_ZERO); 826 if (rp == NULL) { 827 struct scsi_inquiry_data *inq_buf; 828 inq_buf = &periph->path->device->inq_data; 829 xpt_print(periph->path, 830 "Unable to alloc report luns storage\n"); 831 if (INQ_DATA_TQ_ENABLED(inq_buf)) 832 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 833 else 834 PROBE_SET_ACTION(softc, 835 PROBE_SUPPORTED_VPD_LIST); 836 goto again; 837 } 838 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 839 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 840 SSD_FULL_SIZE, 60000); 841 break; 842 } 843 case PROBE_MODE_SENSE: 844 { 845 void *mode_buf; 846 int mode_buf_len; 847 848 mode_buf_len = sizeof(struct scsi_mode_header_6) 849 + sizeof(struct scsi_mode_blk_desc) 850 + sizeof(struct scsi_control_page); 851 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 852 if (mode_buf != NULL) { 853 scsi_mode_sense(csio, 854 /*retries*/4, 855 probedone, 856 MSG_SIMPLE_Q_TAG, 857 /*dbd*/FALSE, 858 SMS_PAGE_CTRL_CURRENT, 859 SMS_CONTROL_MODE_PAGE, 860 mode_buf, 861 mode_buf_len, 862 SSD_FULL_SIZE, 863 /*timeout*/60000); 864 break; 865 } 866 xpt_print(periph->path, 867 "Unable to mode sense control page - malloc failure\n"); 868 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 869 } 870 /* FALLTHROUGH */ 871 case PROBE_SUPPORTED_VPD_LIST: 872 { 873 struct scsi_vpd_supported_page_list *vpd_list; 874 struct cam_ed *device; 875 876 vpd_list = NULL; 877 device = periph->path->device; 878 879 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 880 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 881 M_NOWAIT | M_ZERO); 882 883 if (vpd_list != NULL) { 884 scsi_inquiry(csio, 885 /*retries*/4, 886 probedone, 887 MSG_SIMPLE_Q_TAG, 888 (uint8_t *)vpd_list, 889 sizeof(*vpd_list), 890 /*evpd*/TRUE, 891 SVPD_SUPPORTED_PAGE_LIST, 892 SSD_MIN_SIZE, 893 /*timeout*/60 * 1000); 894 break; 895 } 896 done: 897 /* 898 * We'll have to do without, let our probedone 899 * routine finish up for us. 900 */ 901 start_ccb->csio.data_ptr = NULL; 902 cam_freeze_devq(periph->path); 903 cam_periph_doacquire(periph); 904 probedone(periph, start_ccb); 905 return; 906 } 907 case PROBE_DEVICE_ID: 908 { 909 struct scsi_vpd_device_id *devid; 910 911 devid = NULL; 912 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 913 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 914 M_NOWAIT | M_ZERO); 915 916 if (devid != NULL) { 917 scsi_inquiry(csio, 918 /*retries*/4, 919 probedone, 920 MSG_SIMPLE_Q_TAG, 921 (uint8_t *)devid, 922 SVPD_DEVICE_ID_MAX_SIZE, 923 /*evpd*/TRUE, 924 SVPD_DEVICE_ID, 925 SSD_MIN_SIZE, 926 /*timeout*/60 * 1000); 927 break; 928 } 929 goto done; 930 } 931 case PROBE_EXTENDED_INQUIRY: 932 { 933 struct scsi_vpd_extended_inquiry_data *ext_inq; 934 935 ext_inq = NULL; 936 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 937 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 938 M_NOWAIT | M_ZERO); 939 940 if (ext_inq != NULL) { 941 scsi_inquiry(csio, 942 /*retries*/4, 943 probedone, 944 MSG_SIMPLE_Q_TAG, 945 (uint8_t *)ext_inq, 946 sizeof(*ext_inq), 947 /*evpd*/TRUE, 948 SVPD_EXTENDED_INQUIRY_DATA, 949 SSD_MIN_SIZE, 950 /*timeout*/60 * 1000); 951 break; 952 } 953 /* 954 * We'll have to do without, let our probedone 955 * routine finish up for us. 956 */ 957 goto done; 958 } 959 case PROBE_SERIAL_NUM: 960 { 961 struct scsi_vpd_unit_serial_number *serial_buf; 962 struct cam_ed* device; 963 964 serial_buf = NULL; 965 device = periph->path->device; 966 if (device->serial_num != NULL) { 967 free(device->serial_num, M_CAMXPT); 968 device->serial_num = NULL; 969 device->serial_num_len = 0; 970 } 971 972 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 973 serial_buf = (struct scsi_vpd_unit_serial_number *) 974 malloc(sizeof(*serial_buf), M_CAMXPT, 975 M_NOWAIT|M_ZERO); 976 977 if (serial_buf != NULL) { 978 scsi_inquiry(csio, 979 /*retries*/4, 980 probedone, 981 MSG_SIMPLE_Q_TAG, 982 (uint8_t *)serial_buf, 983 sizeof(*serial_buf), 984 /*evpd*/TRUE, 985 SVPD_UNIT_SERIAL_NUMBER, 986 SSD_MIN_SIZE, 987 /*timeout*/60 * 1000); 988 break; 989 } 990 goto done; 991 } 992 case PROBE_INQUIRY_BASIC_DV1: 993 case PROBE_INQUIRY_BASIC_DV2: 994 { 995 u_int inquiry_len; 996 struct scsi_inquiry_data *inq_buf; 997 998 inq_buf = &periph->path->device->inq_data; 999 inquiry_len = roundup2(SID_ADDITIONAL_LENGTH(inq_buf), 2); 1000 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 1001 if (inq_buf == NULL) { 1002 xpt_print(periph->path, 1003 "malloc failure- skipping Basic Domain Validation\n"); 1004 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1005 scsi_test_unit_ready(csio, 1006 /*retries*/4, 1007 probedone, 1008 MSG_SIMPLE_Q_TAG, 1009 SSD_FULL_SIZE, 1010 /*timeout*/60000); 1011 break; 1012 } 1013 1014 scsi_inquiry(csio, 1015 /*retries*/4, 1016 probedone, 1017 MSG_SIMPLE_Q_TAG, 1018 (uint8_t *)inq_buf, 1019 inquiry_len, 1020 /*evpd*/FALSE, 1021 /*page_code*/0, 1022 SSD_MIN_SIZE, 1023 /*timeout*/60 * 1000); 1024 break; 1025 } 1026 default: 1027 panic("probestart: invalid action state 0x%x\n", softc->action); 1028 } 1029 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1030 cam_periph_doacquire(periph); 1031 xpt_action(start_ccb); 1032 } 1033 1034 static void 1035 proberequestdefaultnegotiation(struct cam_periph *periph) 1036 { 1037 struct ccb_trans_settings cts; 1038 1039 memset(&cts, 0, sizeof(cts)); 1040 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1041 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1042 cts.type = CTS_TYPE_USER_SETTINGS; 1043 xpt_action((union ccb *)&cts); 1044 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1045 return; 1046 } 1047 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1048 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1049 xpt_action((union ccb *)&cts); 1050 } 1051 1052 /* 1053 * Backoff Negotiation Code- only pertinent for SPI devices. 1054 */ 1055 static int 1056 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1057 { 1058 struct ccb_trans_settings cts; 1059 struct ccb_trans_settings_spi *spi; 1060 1061 memset(&cts, 0, sizeof (cts)); 1062 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1063 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1064 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1065 xpt_action((union ccb *)&cts); 1066 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1067 if (bootverbose) { 1068 xpt_print(periph->path, 1069 "failed to get current device settings\n"); 1070 } 1071 return (0); 1072 } 1073 if (cts.transport != XPORT_SPI) { 1074 if (bootverbose) { 1075 xpt_print(periph->path, "not SPI transport\n"); 1076 } 1077 return (0); 1078 } 1079 spi = &cts.xport_specific.spi; 1080 1081 /* 1082 * We cannot renegotiate sync rate if we don't have one. 1083 */ 1084 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1085 if (bootverbose) { 1086 xpt_print(periph->path, "no sync rate known\n"); 1087 } 1088 return (0); 1089 } 1090 1091 /* 1092 * We'll assert that we don't have to touch PPR options- the 1093 * SIM will see what we do with period and offset and adjust 1094 * the PPR options as appropriate. 1095 */ 1096 1097 /* 1098 * A sync rate with unknown or zero offset is nonsensical. 1099 * A sync period of zero means Async. 1100 */ 1101 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1102 || spi->sync_offset == 0 || spi->sync_period == 0) { 1103 if (bootverbose) { 1104 xpt_print(periph->path, "no sync rate available\n"); 1105 } 1106 return (0); 1107 } 1108 1109 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1110 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1111 ("hit async: giving up on DV\n")); 1112 return (0); 1113 } 1114 1115 /* 1116 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1117 * We don't try to remember 'last' settings to see if the SIM actually 1118 * gets into the speed we want to set. We check on the SIM telling 1119 * us that a requested speed is bad, but otherwise don't try and 1120 * check the speed due to the asynchronous and handshake nature 1121 * of speed setting. 1122 */ 1123 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1124 for (;;) { 1125 spi->sync_period++; 1126 if (spi->sync_period >= 0xf) { 1127 spi->sync_period = 0; 1128 spi->sync_offset = 0; 1129 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1130 ("setting to async for DV\n")); 1131 /* 1132 * Once we hit async, we don't want to try 1133 * any more settings. 1134 */ 1135 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1136 } else if (bootverbose) { 1137 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1138 ("DV: period 0x%x\n", spi->sync_period)); 1139 printf("setting period to 0x%x\n", spi->sync_period); 1140 } 1141 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1142 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1143 xpt_action((union ccb *)&cts); 1144 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1145 break; 1146 } 1147 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1148 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1149 if (spi->sync_period == 0) { 1150 return (0); 1151 } 1152 } 1153 return (1); 1154 } 1155 1156 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1157 1158 static void 1159 probedone(struct cam_periph *periph, union ccb *done_ccb) 1160 { 1161 probe_softc *softc; 1162 struct cam_path *path; 1163 struct scsi_inquiry_data *inq_buf; 1164 uint32_t priority; 1165 1166 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1167 1168 softc = (probe_softc *)periph->softc; 1169 path = done_ccb->ccb_h.path; 1170 priority = done_ccb->ccb_h.pinfo.priority; 1171 cam_periph_assert(periph, MA_OWNED); 1172 1173 switch (softc->action) { 1174 case PROBE_TUR: 1175 { 1176 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1177 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1178 ERESTART) { 1179 outr: 1180 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1181 cam_release_devq(path, 0, 0, 0, FALSE); 1182 return; 1183 } 1184 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1185 /* Don't wedge the queue */ 1186 xpt_release_devq(done_ccb->ccb_h.path, 1187 /*count*/1, 1188 /*run_queue*/TRUE); 1189 } 1190 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1191 xpt_release_ccb(done_ccb); 1192 xpt_schedule(periph, priority); 1193 out: 1194 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1195 cam_release_devq(path, 0, 0, 0, FALSE); 1196 cam_periph_release_locked(periph); 1197 return; 1198 } 1199 case PROBE_INQUIRY: 1200 case PROBE_FULL_INQUIRY: 1201 { 1202 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1203 uint8_t periph_qual; 1204 1205 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1206 scsi_find_quirk(path->device); 1207 inq_buf = &path->device->inq_data; 1208 1209 periph_qual = SID_QUAL(inq_buf); 1210 1211 if (periph_qual == SID_QUAL_LU_CONNECTED || 1212 periph_qual == SID_QUAL_LU_OFFLINE) { 1213 /* 1214 * We conservatively request only 1215 * SHORT_INQUIRY_LEN bytes of inquiry 1216 * information during our first try 1217 * at sending an INQUIRY. If the device 1218 * has more information to give, 1219 * perform a second request specifying 1220 * the amount of information the device 1221 * is willing to give. 1222 */ 1223 if (softc->action == PROBE_INQUIRY 1224 && SID_ADDITIONAL_LENGTH(inq_buf) 1225 > SHORT_INQUIRY_LENGTH) { 1226 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1227 xpt_release_ccb(done_ccb); 1228 xpt_schedule(periph, priority); 1229 goto out; 1230 } 1231 1232 scsi_devise_transport(path); 1233 1234 if (path->device->lun_id == 0 && 1235 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1236 (SCSI_QUIRK(path->device)->quirks & 1237 CAM_QUIRK_NORPTLUNS) == 0) { 1238 PROBE_SET_ACTION(softc, 1239 PROBE_REPORT_LUNS); 1240 /* 1241 * Start with room for *one* lun. 1242 */ 1243 periph->path->target->rpl_size = 16; 1244 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1245 PROBE_SET_ACTION(softc, 1246 PROBE_MODE_SENSE); 1247 else 1248 PROBE_SET_ACTION(softc, 1249 PROBE_SUPPORTED_VPD_LIST); 1250 1251 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1252 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1253 xpt_acquire_device(path->device); 1254 } 1255 xpt_release_ccb(done_ccb); 1256 xpt_schedule(periph, priority); 1257 goto out; 1258 } else if (path->device->lun_id == 0 && 1259 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1260 (SCSI_QUIRK(path->device)->quirks & 1261 CAM_QUIRK_NORPTLUNS) == 0) { 1262 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1263 periph->path->target->rpl_size = 16; 1264 xpt_release_ccb(done_ccb); 1265 xpt_schedule(periph, priority); 1266 goto out; 1267 } 1268 } else if (cam_periph_error(done_ccb, 0, 1269 done_ccb->ccb_h.target_lun > 0 1270 ? SF_RETRY_UA|SF_QUIET_IR 1271 : SF_RETRY_UA) == ERESTART) { 1272 goto outr; 1273 } else { 1274 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1275 /* Don't wedge the queue */ 1276 xpt_release_devq(done_ccb->ccb_h.path, 1277 /*count*/1, /*run_queue*/TRUE); 1278 } 1279 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1280 } 1281 /* 1282 * If we get to this point, we got an error status back 1283 * from the inquiry and the error status doesn't require 1284 * automatically retrying the command. Therefore, the 1285 * inquiry failed. If we had inquiry information before 1286 * for this device, but this latest inquiry command failed, 1287 * the device has probably gone away. If this device isn't 1288 * already marked unconfigured, notify the peripheral 1289 * drivers that this device is no more. 1290 */ 1291 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1292 /* Send the async notification. */ 1293 xpt_async(AC_LOST_DEVICE, path, NULL); 1294 PROBE_SET_ACTION(softc, PROBE_INVALID); 1295 1296 xpt_release_ccb(done_ccb); 1297 break; 1298 } 1299 case PROBE_REPORT_LUNS: 1300 { 1301 struct ccb_scsiio *csio; 1302 struct scsi_report_luns_data *lp; 1303 u_int nlun, maxlun; 1304 1305 csio = &done_ccb->csio; 1306 1307 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1308 nlun = scsi_4btoul(lp->length) / 8; 1309 maxlun = (csio->dxfer_len / 8) - 1; 1310 1311 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1312 if (cam_periph_error(done_ccb, 0, 1313 done_ccb->ccb_h.target_lun > 0 ? 1314 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1315 ERESTART) { 1316 goto outr; 1317 } 1318 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1319 xpt_release_devq(done_ccb->ccb_h.path, 1, 1320 TRUE); 1321 } 1322 free(lp, M_CAMXPT); 1323 lp = NULL; 1324 } else if (nlun > maxlun) { 1325 /* 1326 * Reallocate and retry to cover all luns 1327 */ 1328 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1329 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1330 nlun)); 1331 free(lp, M_CAMXPT); 1332 path->target->rpl_size = (nlun << 3) + 8; 1333 xpt_release_ccb(done_ccb); 1334 xpt_schedule(periph, priority); 1335 goto out; 1336 } else if (nlun == 0) { 1337 /* 1338 * If there don't appear to be any luns, bail. 1339 */ 1340 free(lp, M_CAMXPT); 1341 lp = NULL; 1342 } else { 1343 lun_id_t lun; 1344 int idx; 1345 1346 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1347 ("Probe: %u lun(s) reported\n", nlun)); 1348 1349 CAM_GET_LUN(lp, 0, lun); 1350 /* 1351 * If the first lun is not lun 0, then either there 1352 * is no lun 0 in the list, or the list is unsorted. 1353 */ 1354 if (lun != 0) { 1355 for (idx = 0; idx < nlun; idx++) { 1356 CAM_GET_LUN(lp, idx, lun); 1357 if (lun == 0) { 1358 break; 1359 } 1360 } 1361 if (idx != nlun) { 1362 uint8_t tlun[8]; 1363 memcpy(tlun, 1364 lp->luns[0].lundata, 8); 1365 memcpy(lp->luns[0].lundata, 1366 lp->luns[idx].lundata, 8); 1367 memcpy(lp->luns[idx].lundata, 1368 tlun, 8); 1369 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1370 ("lun 0 in position %u\n", idx)); 1371 } 1372 } 1373 /* 1374 * If we have an old lun list, We can either 1375 * retest luns that appear to have been dropped, 1376 * or just nuke them. We'll opt for the latter. 1377 * This function will also install the new list 1378 * in the target structure. 1379 */ 1380 probe_purge_old(path, lp, softc->flags); 1381 lp = NULL; 1382 } 1383 /* The processing above should either exit via a `goto 1384 * out` or leave the `lp` variable `NULL` and (if 1385 * applicable) `free()` the storage to which it had 1386 * pointed. Assert here that is the case. 1387 */ 1388 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1389 inq_buf = &path->device->inq_data; 1390 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1391 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1392 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1393 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1394 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1395 else 1396 PROBE_SET_ACTION(softc, 1397 PROBE_SUPPORTED_VPD_LIST); 1398 xpt_release_ccb(done_ccb); 1399 xpt_schedule(periph, priority); 1400 goto out; 1401 } 1402 PROBE_SET_ACTION(softc, PROBE_INVALID); 1403 xpt_release_ccb(done_ccb); 1404 break; 1405 } 1406 case PROBE_MODE_SENSE: 1407 { 1408 struct ccb_scsiio *csio; 1409 struct scsi_mode_header_6 *mode_hdr; 1410 1411 csio = &done_ccb->csio; 1412 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1413 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1414 struct scsi_control_page *page; 1415 uint8_t *offset; 1416 1417 offset = ((uint8_t *)&mode_hdr[1]) 1418 + mode_hdr->blk_desc_len; 1419 page = (struct scsi_control_page *)offset; 1420 path->device->queue_flags = page->queue_flags; 1421 } else if (cam_periph_error(done_ccb, 0, 1422 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1423 goto outr; 1424 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1425 /* Don't wedge the queue */ 1426 xpt_release_devq(done_ccb->ccb_h.path, 1427 /*count*/1, /*run_queue*/TRUE); 1428 } 1429 xpt_release_ccb(done_ccb); 1430 free(mode_hdr, M_CAMXPT); 1431 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1432 xpt_schedule(periph, priority); 1433 goto out; 1434 } 1435 case PROBE_SUPPORTED_VPD_LIST: 1436 { 1437 struct ccb_scsiio *csio; 1438 struct scsi_vpd_supported_page_list *page_list; 1439 1440 csio = &done_ccb->csio; 1441 page_list = 1442 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1443 1444 if (path->device->supported_vpds != NULL) { 1445 free(path->device->supported_vpds, M_CAMXPT); 1446 path->device->supported_vpds = NULL; 1447 path->device->supported_vpds_len = 0; 1448 } 1449 1450 if (page_list == NULL) { 1451 /* 1452 * Don't process the command as it was never sent 1453 */ 1454 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1455 /* Got vpd list */ 1456 path->device->supported_vpds_len = page_list->length + 1457 SVPD_SUPPORTED_PAGES_HDR_LEN; 1458 path->device->supported_vpds = (uint8_t *)page_list; 1459 xpt_release_ccb(done_ccb); 1460 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1461 xpt_schedule(periph, priority); 1462 goto out; 1463 } else if (cam_periph_error(done_ccb, 0, 1464 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1465 goto outr; 1466 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1467 /* Don't wedge the queue */ 1468 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1469 /*run_queue*/TRUE); 1470 } 1471 1472 if (page_list) 1473 free(page_list, M_CAMXPT); 1474 /* No VPDs available, skip to device check. */ 1475 csio->data_ptr = NULL; 1476 goto probe_device_check; 1477 } 1478 case PROBE_DEVICE_ID: 1479 { 1480 struct scsi_vpd_device_id *devid; 1481 struct ccb_scsiio *csio; 1482 uint32_t length = 0; 1483 1484 csio = &done_ccb->csio; 1485 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1486 1487 /* Clean up from previous instance of this device */ 1488 if (path->device->device_id != NULL) { 1489 path->device->device_id_len = 0; 1490 free(path->device->device_id, M_CAMXPT); 1491 path->device->device_id = NULL; 1492 } 1493 1494 if (devid == NULL) { 1495 /* Don't process the command as it was never sent */ 1496 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1497 length = scsi_2btoul(devid->length); 1498 if (length != 0) { 1499 /* 1500 * NB: device_id_len is actual response 1501 * size, not buffer size. 1502 */ 1503 path->device->device_id_len = length + 1504 SVPD_DEVICE_ID_HDR_LEN; 1505 path->device->device_id = (uint8_t *)devid; 1506 } 1507 } else if (cam_periph_error(done_ccb, 0, 1508 SF_RETRY_UA) == ERESTART) { 1509 goto outr; 1510 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1511 /* Don't wedge the queue */ 1512 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1513 /*run_queue*/TRUE); 1514 } 1515 1516 /* Free the device id space if we don't use it */ 1517 if (devid && length == 0) 1518 free(devid, M_CAMXPT); 1519 xpt_release_ccb(done_ccb); 1520 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1521 xpt_schedule(periph, priority); 1522 goto out; 1523 } 1524 case PROBE_EXTENDED_INQUIRY: { 1525 struct scsi_vpd_extended_inquiry_data *ext_inq; 1526 struct ccb_scsiio *csio; 1527 int32_t length = 0; 1528 1529 csio = &done_ccb->csio; 1530 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1531 csio->data_ptr; 1532 if (path->device->ext_inq != NULL) { 1533 path->device->ext_inq_len = 0; 1534 free(path->device->ext_inq, M_CAMXPT); 1535 path->device->ext_inq = NULL; 1536 } 1537 1538 if (ext_inq == NULL) { 1539 /* Don't process the command as it was never sent */ 1540 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1541 length = scsi_2btoul(ext_inq->page_length) + 1542 __offsetof(struct scsi_vpd_extended_inquiry_data, 1543 flags1); 1544 length = min(length, sizeof(*ext_inq)); 1545 length -= csio->resid; 1546 if (length > 0) { 1547 path->device->ext_inq_len = length; 1548 path->device->ext_inq = (uint8_t *)ext_inq; 1549 } 1550 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1551 ERESTART) { 1552 goto outr; 1553 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1554 /* Don't wedge the queue */ 1555 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1556 /*run_queue*/TRUE); 1557 } 1558 1559 /* Free the device id space if we don't use it */ 1560 if (ext_inq && length <= 0) 1561 free(ext_inq, M_CAMXPT); 1562 xpt_release_ccb(done_ccb); 1563 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1564 xpt_schedule(periph, priority); 1565 goto out; 1566 } 1567 1568 probe_device_check: 1569 case PROBE_SERIAL_NUM: 1570 { 1571 struct ccb_scsiio *csio; 1572 struct scsi_vpd_unit_serial_number *serial_buf; 1573 uint32_t priority; 1574 int changed; 1575 int have_serialnum; 1576 1577 changed = 1; 1578 have_serialnum = 0; 1579 csio = &done_ccb->csio; 1580 priority = done_ccb->ccb_h.pinfo.priority; 1581 serial_buf = 1582 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1583 1584 if (serial_buf == NULL) { 1585 /* 1586 * Don't process the command as it was never sent 1587 */ 1588 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1589 && (serial_buf->length > 0)) { 1590 have_serialnum = 1; 1591 path->device->serial_num = 1592 (uint8_t *)malloc((serial_buf->length + 1), 1593 M_CAMXPT, M_NOWAIT); 1594 if (path->device->serial_num != NULL) { 1595 int start, slen; 1596 1597 start = strspn(serial_buf->serial_num, " "); 1598 slen = serial_buf->length - start; 1599 if (slen <= 0) { 1600 /* 1601 * SPC5r05 says that an all-space serial 1602 * number means no product serial number 1603 * is available 1604 */ 1605 slen = 0; 1606 } 1607 /* 1608 * In apparent violation of the spec, some 1609 * devices pad their serial numbers with 1610 * trailing spaces. Remove them. 1611 */ 1612 while (slen > 0 && 1613 serial_buf->serial_num[start + slen - 1] == ' ') 1614 slen--; 1615 memcpy(path->device->serial_num, 1616 &serial_buf->serial_num[start], slen); 1617 path->device->serial_num_len = slen; 1618 path->device->serial_num[slen] = '\0'; 1619 } 1620 } else if (cam_periph_error(done_ccb, 0, 1621 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1622 goto outr; 1623 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1624 /* Don't wedge the queue */ 1625 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1626 /*run_queue*/TRUE); 1627 } 1628 1629 /* 1630 * Let's see if we have seen this device before. 1631 */ 1632 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1633 MD5_CTX context; 1634 uint8_t digest[16]; 1635 1636 MD5Init(&context); 1637 1638 MD5Update(&context, 1639 (unsigned char *)&path->device->inq_data, 1640 sizeof(struct scsi_inquiry_data)); 1641 1642 if (have_serialnum) 1643 MD5Update(&context, path->device->serial_num, 1644 path->device->serial_num_len); 1645 1646 MD5Final(digest, &context); 1647 if (bcmp(softc->digest, digest, 16) == 0) 1648 changed = 0; 1649 1650 /* 1651 * XXX Do we need to do a TUR in order to ensure 1652 * that the device really hasn't changed??? 1653 */ 1654 if ((changed != 0) 1655 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1656 xpt_async(AC_LOST_DEVICE, path, NULL); 1657 } 1658 if (serial_buf != NULL) 1659 free(serial_buf, M_CAMXPT); 1660 1661 if (changed != 0) { 1662 /* 1663 * Now that we have all the necessary 1664 * information to safely perform transfer 1665 * negotiations... Controllers don't perform 1666 * any negotiation or tagged queuing until 1667 * after the first XPT_SET_TRAN_SETTINGS ccb is 1668 * received. So, on a new device, just retrieve 1669 * the user settings, and set them as the current 1670 * settings to set the device up. 1671 */ 1672 proberequestdefaultnegotiation(periph); 1673 xpt_release_ccb(done_ccb); 1674 1675 /* 1676 * Perform a TUR to allow the controller to 1677 * perform any necessary transfer negotiation. 1678 */ 1679 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1680 xpt_schedule(periph, priority); 1681 goto out; 1682 } 1683 xpt_release_ccb(done_ccb); 1684 break; 1685 } 1686 case PROBE_TUR_FOR_NEGOTIATION: 1687 case PROBE_DV_EXIT: 1688 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1689 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1690 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1691 goto outr; 1692 } 1693 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1694 /* Don't wedge the queue */ 1695 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1696 /*run_queue*/TRUE); 1697 } 1698 /* 1699 * Do Domain Validation for lun 0 on devices that claim 1700 * to support Synchronous Transfer modes. 1701 */ 1702 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1703 && done_ccb->ccb_h.target_lun == 0 1704 && (path->device->inq_data.flags & SID_Sync) != 0 1705 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1706 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1707 ("Begin Domain Validation\n")); 1708 path->device->flags |= CAM_DEV_IN_DV; 1709 xpt_release_ccb(done_ccb); 1710 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1711 xpt_schedule(periph, priority); 1712 goto out; 1713 } 1714 if (softc->action == PROBE_DV_EXIT) { 1715 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1716 ("Leave Domain Validation\n")); 1717 } 1718 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1719 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1720 xpt_acquire_device(path->device); 1721 } 1722 path->device->flags &= 1723 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1724 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1725 /* Inform the XPT that a new device has been found */ 1726 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1727 xpt_action(done_ccb); 1728 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1729 done_ccb); 1730 } 1731 PROBE_SET_ACTION(softc, PROBE_DONE); 1732 xpt_release_ccb(done_ccb); 1733 break; 1734 case PROBE_INQUIRY_BASIC_DV1: 1735 case PROBE_INQUIRY_BASIC_DV2: 1736 { 1737 struct scsi_inquiry_data *nbuf; 1738 struct ccb_scsiio *csio; 1739 1740 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1741 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1742 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1743 goto outr; 1744 } 1745 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1746 /* Don't wedge the queue */ 1747 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1748 /*run_queue*/TRUE); 1749 } 1750 csio = &done_ccb->csio; 1751 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1752 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1753 xpt_print(path, 1754 "inquiry data fails comparison at DV%d step\n", 1755 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1756 if (proberequestbackoff(periph, path->device)) { 1757 path->device->flags &= ~CAM_DEV_IN_DV; 1758 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1759 } else { 1760 /* give up */ 1761 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1762 } 1763 free(nbuf, M_CAMXPT); 1764 xpt_release_ccb(done_ccb); 1765 xpt_schedule(periph, priority); 1766 goto out; 1767 } 1768 free(nbuf, M_CAMXPT); 1769 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1770 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1771 xpt_release_ccb(done_ccb); 1772 xpt_schedule(periph, priority); 1773 goto out; 1774 } 1775 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1776 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1777 ("Leave Domain Validation Successfully\n")); 1778 } 1779 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1780 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1781 xpt_acquire_device(path->device); 1782 } 1783 path->device->flags &= 1784 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1785 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1786 /* Inform the XPT that a new device has been found */ 1787 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1788 xpt_action(done_ccb); 1789 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1790 done_ccb); 1791 } 1792 PROBE_SET_ACTION(softc, PROBE_DONE); 1793 xpt_release_ccb(done_ccb); 1794 break; 1795 } 1796 default: 1797 panic("probedone: invalid action state 0x%x\n", softc->action); 1798 } 1799 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1800 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1801 done_ccb->ccb_h.status = CAM_REQ_CMP; 1802 xpt_done(done_ccb); 1803 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1804 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1805 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1806 cam_release_devq(path, 0, 0, 0, FALSE); 1807 cam_periph_release_locked(periph); 1808 cam_periph_invalidate(periph); 1809 cam_periph_release_locked(periph); 1810 } else { 1811 probeschedule(periph); 1812 goto out; 1813 } 1814 } 1815 1816 static void 1817 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1818 probe_flags flags) 1819 { 1820 struct cam_path *tp; 1821 struct scsi_report_luns_data *old; 1822 u_int idx1, idx2, nlun_old, nlun_new; 1823 lun_id_t this_lun; 1824 uint8_t *ol, *nl; 1825 1826 if (path->target == NULL) { 1827 return; 1828 } 1829 mtx_lock(&path->target->luns_mtx); 1830 old = path->target->luns; 1831 path->target->luns = new; 1832 mtx_unlock(&path->target->luns_mtx); 1833 if (old == NULL) 1834 return; 1835 nlun_old = scsi_4btoul(old->length) / 8; 1836 nlun_new = scsi_4btoul(new->length) / 8; 1837 1838 /* 1839 * We are not going to assume sorted lists. Deal. 1840 */ 1841 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1842 ol = old->luns[idx1].lundata; 1843 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1844 nl = new->luns[idx2].lundata; 1845 if (memcmp(nl, ol, 8) == 0) { 1846 break; 1847 } 1848 } 1849 if (idx2 < nlun_new) { 1850 continue; 1851 } 1852 /* 1853 * An 'old' item not in the 'new' list. 1854 * Nuke it. Except that if it is lun 0, 1855 * that would be what the probe state 1856 * machine is currently working on, 1857 * so we won't do that. 1858 */ 1859 CAM_GET_LUN(old, idx1, this_lun); 1860 if (this_lun == 0) { 1861 continue; 1862 } 1863 1864 /* 1865 * We also cannot nuke it if it is 1866 * not in a lun format we understand 1867 * and replace the LUN with a "simple" LUN 1868 * if that is all the HBA supports. 1869 */ 1870 if (!(flags & PROBE_EXTLUN)) { 1871 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1872 continue; 1873 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1874 } 1875 1876 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1877 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1878 xpt_async(AC_LOST_DEVICE, tp, NULL); 1879 xpt_free_path(tp); 1880 } 1881 } 1882 free(old, M_CAMXPT); 1883 } 1884 1885 static void 1886 probecleanup(struct cam_periph *periph) 1887 { 1888 free(periph->softc, M_CAMXPT); 1889 } 1890 1891 static void 1892 scsi_find_quirk(struct cam_ed *device) 1893 { 1894 struct scsi_quirk_entry *quirk; 1895 caddr_t match; 1896 1897 match = cam_quirkmatch((caddr_t)&device->inq_data, 1898 (caddr_t)scsi_quirk_table, 1899 nitems(scsi_quirk_table), 1900 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1901 1902 if (match == NULL) 1903 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1904 1905 quirk = (struct scsi_quirk_entry *)match; 1906 device->quirk = quirk; 1907 device->mintags = quirk->mintags; 1908 device->maxtags = quirk->maxtags; 1909 } 1910 1911 typedef struct { 1912 union ccb *request_ccb; 1913 struct ccb_pathinq *cpi; 1914 int counter; 1915 int lunindex[0]; 1916 } scsi_scan_bus_info; 1917 1918 /* 1919 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1920 * As the scan progresses, scsi_scan_bus is used as the 1921 * callback on completion function. 1922 */ 1923 static void 1924 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1925 { 1926 struct mtx *mtx; 1927 1928 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1929 ("scsi_scan_bus\n")); 1930 switch (request_ccb->ccb_h.func_code) { 1931 case XPT_SCAN_BUS: 1932 case XPT_SCAN_TGT: 1933 { 1934 scsi_scan_bus_info *scan_info; 1935 union ccb *work_ccb, *reset_ccb; 1936 struct cam_path *path; 1937 u_int i; 1938 u_int low_target, max_target; 1939 u_int initiator_id; 1940 1941 /* Find out the characteristics of the bus */ 1942 work_ccb = xpt_alloc_ccb_nowait(); 1943 if (work_ccb == NULL) { 1944 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1945 xpt_done(request_ccb); 1946 return; 1947 } 1948 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1949 request_ccb->ccb_h.pinfo.priority); 1950 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1951 xpt_action(work_ccb); 1952 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1953 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1954 xpt_free_ccb(work_ccb); 1955 xpt_done(request_ccb); 1956 return; 1957 } 1958 1959 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1960 /* 1961 * Can't scan the bus on an adapter that 1962 * cannot perform the initiator role. 1963 */ 1964 request_ccb->ccb_h.status = CAM_REQ_CMP; 1965 xpt_free_ccb(work_ccb); 1966 xpt_done(request_ccb); 1967 return; 1968 } 1969 1970 /* We may need to reset bus first, if we haven't done it yet. */ 1971 if ((work_ccb->cpi.hba_inquiry & 1972 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1973 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1974 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1975 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1976 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1977 CAM_PRIORITY_NONE); 1978 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1979 xpt_action(reset_ccb); 1980 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1981 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1982 xpt_free_ccb(reset_ccb); 1983 xpt_free_ccb(work_ccb); 1984 xpt_done(request_ccb); 1985 return; 1986 } 1987 xpt_free_ccb(reset_ccb); 1988 } 1989 1990 /* Save some state for use while we probe for devices */ 1991 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1992 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1993 if (scan_info == NULL) { 1994 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1995 xpt_free_ccb(work_ccb); 1996 xpt_done(request_ccb); 1997 return; 1998 } 1999 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2000 ("SCAN start for %p\n", scan_info)); 2001 scan_info->request_ccb = request_ccb; 2002 scan_info->cpi = &work_ccb->cpi; 2003 2004 /* Cache on our stack so we can work asynchronously */ 2005 max_target = scan_info->cpi->max_target; 2006 low_target = 0; 2007 initiator_id = scan_info->cpi->initiator_id; 2008 2009 /* 2010 * We can scan all targets in parallel, or do it sequentially. 2011 */ 2012 2013 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2014 max_target = low_target = request_ccb->ccb_h.target_id; 2015 scan_info->counter = 0; 2016 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2017 max_target = 0; 2018 scan_info->counter = 0; 2019 } else { 2020 scan_info->counter = scan_info->cpi->max_target + 1; 2021 if (scan_info->cpi->initiator_id < scan_info->counter) { 2022 scan_info->counter--; 2023 } 2024 } 2025 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2026 mtx_unlock(mtx); 2027 2028 for (i = low_target; i <= max_target; i++) { 2029 cam_status status; 2030 if (i == initiator_id) 2031 continue; 2032 2033 status = xpt_create_path(&path, NULL, 2034 request_ccb->ccb_h.path_id, 2035 i, 0); 2036 if (status != CAM_REQ_CMP) { 2037 printf( 2038 "scsi_scan_bus: xpt_create_path failed with status %#x, bus scan halted\n", 2039 status); 2040 free(scan_info, M_CAMXPT); 2041 request_ccb->ccb_h.status = status; 2042 xpt_free_ccb(work_ccb); 2043 xpt_done(request_ccb); 2044 break; 2045 } 2046 work_ccb = xpt_alloc_ccb_nowait(); 2047 if (work_ccb == NULL) { 2048 xpt_free_ccb((union ccb *)scan_info->cpi); 2049 free(scan_info, M_CAMXPT); 2050 xpt_free_path(path); 2051 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2052 xpt_done(request_ccb); 2053 break; 2054 } 2055 xpt_setup_ccb(&work_ccb->ccb_h, path, 2056 request_ccb->ccb_h.pinfo.priority); 2057 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2058 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2059 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2060 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2061 work_ccb->crcn.flags = request_ccb->crcn.flags; 2062 xpt_action(work_ccb); 2063 } 2064 2065 mtx_lock(mtx); 2066 break; 2067 } 2068 case XPT_SCAN_LUN: 2069 { 2070 cam_status status; 2071 struct cam_path *path, *oldpath; 2072 scsi_scan_bus_info *scan_info; 2073 struct cam_et *target; 2074 struct cam_ed *device, *nextdev; 2075 int next_target; 2076 path_id_t path_id; 2077 target_id_t target_id; 2078 lun_id_t lun_id; 2079 2080 oldpath = request_ccb->ccb_h.path; 2081 2082 status = cam_ccb_status(request_ccb); 2083 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2084 path_id = request_ccb->ccb_h.path_id; 2085 target_id = request_ccb->ccb_h.target_id; 2086 lun_id = request_ccb->ccb_h.target_lun; 2087 target = request_ccb->ccb_h.path->target; 2088 next_target = 1; 2089 2090 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2091 mtx_lock(mtx); 2092 mtx_lock(&target->luns_mtx); 2093 if (target->luns) { 2094 lun_id_t first; 2095 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2096 2097 /* 2098 * Make sure we skip over lun 0 if it's the first member 2099 * of the list as we've actually just finished probing 2100 * it. 2101 */ 2102 CAM_GET_LUN(target->luns, 0, first); 2103 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2104 scan_info->lunindex[target_id]++; 2105 } 2106 2107 /* 2108 * Skip any LUNs that the HBA can't deal with. 2109 */ 2110 while (scan_info->lunindex[target_id] < nluns) { 2111 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2112 CAM_GET_LUN(target->luns, 2113 scan_info->lunindex[target_id], 2114 lun_id); 2115 break; 2116 } 2117 2118 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2119 scan_info->lunindex[target_id])) { 2120 CAM_GET_SIMPLE_LUN(target->luns, 2121 scan_info->lunindex[target_id], 2122 lun_id); 2123 break; 2124 } 2125 2126 scan_info->lunindex[target_id]++; 2127 } 2128 2129 if (scan_info->lunindex[target_id] < nluns) { 2130 mtx_unlock(&target->luns_mtx); 2131 next_target = 0; 2132 CAM_DEBUG(request_ccb->ccb_h.path, 2133 CAM_DEBUG_PROBE, 2134 ("next lun to try at index %u is %jx\n", 2135 scan_info->lunindex[target_id], 2136 (uintmax_t)lun_id)); 2137 scan_info->lunindex[target_id]++; 2138 } else { 2139 mtx_unlock(&target->luns_mtx); 2140 /* We're done with scanning all luns. */ 2141 } 2142 } else { 2143 mtx_unlock(&target->luns_mtx); 2144 device = request_ccb->ccb_h.path->device; 2145 /* Continue sequential LUN scan if: */ 2146 /* -- we have more LUNs that need recheck */ 2147 mtx_lock(&target->bus->eb_mtx); 2148 nextdev = device; 2149 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2150 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2151 break; 2152 mtx_unlock(&target->bus->eb_mtx); 2153 if (nextdev != NULL) { 2154 next_target = 0; 2155 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2156 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2157 next_target = 1; 2158 /* -- this LUN is connected and its SCSI version 2159 * allows more LUNs. */ 2160 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2161 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2162 CAN_SRCH_HI_DENSE(device)) 2163 next_target = 0; 2164 /* -- this LUN is disconnected, its SCSI version 2165 * allows more LUNs and we guess they may be. */ 2166 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2167 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2168 CAN_SRCH_HI_SPARSE(device)) 2169 next_target = 0; 2170 } 2171 if (next_target == 0) { 2172 lun_id++; 2173 if (lun_id > scan_info->cpi->max_lun) 2174 next_target = 1; 2175 } 2176 } 2177 2178 /* 2179 * Check to see if we scan any further luns. 2180 */ 2181 if (next_target) { 2182 int done; 2183 2184 /* 2185 * Free the current request path- we're done with it. 2186 */ 2187 xpt_free_path(oldpath); 2188 hop_again: 2189 done = 0; 2190 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2191 done = 1; 2192 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2193 scan_info->counter++; 2194 if (scan_info->counter == 2195 scan_info->cpi->initiator_id) { 2196 scan_info->counter++; 2197 } 2198 if (scan_info->counter >= 2199 scan_info->cpi->max_target+1) { 2200 done = 1; 2201 } 2202 } else { 2203 scan_info->counter--; 2204 if (scan_info->counter == 0) { 2205 done = 1; 2206 } 2207 } 2208 if (done) { 2209 mtx_unlock(mtx); 2210 xpt_free_ccb(request_ccb); 2211 xpt_free_ccb((union ccb *)scan_info->cpi); 2212 request_ccb = scan_info->request_ccb; 2213 CAM_DEBUG(request_ccb->ccb_h.path, 2214 CAM_DEBUG_TRACE, 2215 ("SCAN done for %p\n", scan_info)); 2216 free(scan_info, M_CAMXPT); 2217 request_ccb->ccb_h.status = CAM_REQ_CMP; 2218 xpt_done(request_ccb); 2219 break; 2220 } 2221 2222 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2223 mtx_unlock(mtx); 2224 xpt_free_ccb(request_ccb); 2225 break; 2226 } 2227 status = xpt_create_path(&path, NULL, 2228 scan_info->request_ccb->ccb_h.path_id, 2229 scan_info->counter, 0); 2230 if (status != CAM_REQ_CMP) { 2231 mtx_unlock(mtx); 2232 printf( 2233 "scsi_scan_bus: xpt_create_path failed with status %#x, bus scan halted\n", 2234 status); 2235 xpt_free_ccb(request_ccb); 2236 xpt_free_ccb((union ccb *)scan_info->cpi); 2237 request_ccb = scan_info->request_ccb; 2238 free(scan_info, M_CAMXPT); 2239 request_ccb->ccb_h.status = status; 2240 xpt_done(request_ccb); 2241 break; 2242 } 2243 xpt_setup_ccb(&request_ccb->ccb_h, path, 2244 request_ccb->ccb_h.pinfo.priority); 2245 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2246 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2247 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2248 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2249 request_ccb->crcn.flags = 2250 scan_info->request_ccb->crcn.flags; 2251 } else { 2252 status = xpt_create_path(&path, NULL, 2253 path_id, target_id, lun_id); 2254 /* 2255 * Free the old request path- we're done with it. We 2256 * do this *after* creating the new path so that 2257 * we don't remove a target that has our lun list 2258 * in the case that lun 0 is not present. 2259 */ 2260 xpt_free_path(oldpath); 2261 if (status != CAM_REQ_CMP) { 2262 printf( 2263 "scsi_scan_bus: xpt_create_path failed with status %#x, halting LUN scan\n", 2264 status); 2265 goto hop_again; 2266 } 2267 xpt_setup_ccb(&request_ccb->ccb_h, path, 2268 request_ccb->ccb_h.pinfo.priority); 2269 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2270 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2271 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2272 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2273 request_ccb->crcn.flags = 2274 scan_info->request_ccb->crcn.flags; 2275 } 2276 mtx_unlock(mtx); 2277 xpt_action(request_ccb); 2278 break; 2279 } 2280 default: 2281 break; 2282 } 2283 } 2284 2285 static void 2286 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2287 cam_flags flags, union ccb *request_ccb) 2288 { 2289 struct ccb_pathinq cpi; 2290 cam_status status; 2291 struct cam_path *new_path; 2292 struct cam_periph *old_periph; 2293 int lock; 2294 2295 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2296 2297 memset(&cpi, 0, sizeof(cpi)); 2298 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2299 cpi.ccb_h.func_code = XPT_PATH_INQ; 2300 xpt_action((union ccb *)&cpi); 2301 2302 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2303 if (request_ccb != NULL) { 2304 request_ccb->ccb_h.status = cpi.ccb_h.status; 2305 xpt_done(request_ccb); 2306 } 2307 return; 2308 } 2309 2310 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2311 /* 2312 * Can't scan the bus on an adapter that 2313 * cannot perform the initiator role. 2314 */ 2315 if (request_ccb != NULL) { 2316 request_ccb->ccb_h.status = CAM_REQ_CMP; 2317 xpt_done(request_ccb); 2318 } 2319 return; 2320 } 2321 2322 if (request_ccb == NULL) { 2323 request_ccb = xpt_alloc_ccb_nowait(); 2324 if (request_ccb == NULL) { 2325 xpt_print(path, 2326 "scsi_scan_lun: can't allocate CCB, can't continue\n"); 2327 return; 2328 } 2329 status = xpt_create_path(&new_path, NULL, 2330 path->bus->path_id, 2331 path->target->target_id, 2332 path->device->lun_id); 2333 if (status != CAM_REQ_CMP) { 2334 xpt_print(path, 2335 "scsi_scan_lun: can't create path, can't continue\n"); 2336 xpt_free_ccb(request_ccb); 2337 return; 2338 } 2339 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2340 request_ccb->ccb_h.cbfcnp = xptscandone; 2341 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2342 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2343 request_ccb->crcn.flags = flags; 2344 } 2345 2346 lock = (xpt_path_owned(path) == 0); 2347 if (lock) 2348 xpt_path_lock(path); 2349 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2350 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2351 probe_softc *softc; 2352 2353 softc = (probe_softc *)old_periph->softc; 2354 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2355 &request_ccb->ccb_h, periph_links.tqe); 2356 } else { 2357 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2358 xpt_done(request_ccb); 2359 } 2360 } else { 2361 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2362 probestart, "probe", 2363 CAM_PERIPH_BIO, 2364 request_ccb->ccb_h.path, NULL, 0, 2365 request_ccb); 2366 2367 if (status != CAM_REQ_CMP) { 2368 xpt_print(path, 2369 "scsi_scan_lun: cam_alloc_periph returned an error, can't continue probe\n"); 2370 request_ccb->ccb_h.status = status; 2371 xpt_done(request_ccb); 2372 } 2373 } 2374 if (lock) 2375 xpt_path_unlock(path); 2376 } 2377 2378 static void 2379 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2380 { 2381 2382 xpt_free_path(done_ccb->ccb_h.path); 2383 xpt_free_ccb(done_ccb); 2384 } 2385 2386 static struct cam_ed * 2387 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2388 { 2389 struct scsi_quirk_entry *quirk; 2390 struct cam_ed *device; 2391 2392 device = xpt_alloc_device(bus, target, lun_id); 2393 if (device == NULL) 2394 return (NULL); 2395 2396 /* 2397 * Take the default quirk entry until we have inquiry 2398 * data and can determine a better quirk to use. 2399 */ 2400 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2401 device->quirk = (void *)quirk; 2402 device->mintags = quirk->mintags; 2403 device->maxtags = quirk->maxtags; 2404 bzero(&device->inq_data, sizeof(device->inq_data)); 2405 device->inq_flags = 0; 2406 device->queue_flags = 0; 2407 device->serial_num = NULL; 2408 device->serial_num_len = 0; 2409 device->device_id = NULL; 2410 device->device_id_len = 0; 2411 device->supported_vpds = NULL; 2412 device->supported_vpds_len = 0; 2413 return (device); 2414 } 2415 2416 static void 2417 scsi_devise_transport(struct cam_path *path) 2418 { 2419 struct ccb_pathinq cpi; 2420 struct ccb_trans_settings cts; 2421 struct scsi_inquiry_data *inq_buf; 2422 2423 /* Get transport information from the SIM */ 2424 memset(&cpi, 0, sizeof(cpi)); 2425 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2426 cpi.ccb_h.func_code = XPT_PATH_INQ; 2427 xpt_action((union ccb *)&cpi); 2428 2429 inq_buf = NULL; 2430 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2431 inq_buf = &path->device->inq_data; 2432 path->device->protocol = PROTO_SCSI; 2433 path->device->protocol_version = 2434 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2435 path->device->transport = cpi.transport; 2436 path->device->transport_version = cpi.transport_version; 2437 2438 /* 2439 * Any device not using SPI3 features should 2440 * be considered SPI2 or lower. 2441 */ 2442 if (inq_buf != NULL) { 2443 if (path->device->transport == XPORT_SPI 2444 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2445 && path->device->transport_version > 2) 2446 path->device->transport_version = 2; 2447 } else { 2448 struct cam_ed* otherdev; 2449 2450 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2451 otherdev != NULL; 2452 otherdev = TAILQ_NEXT(otherdev, links)) { 2453 if (otherdev != path->device) 2454 break; 2455 } 2456 2457 if (otherdev != NULL) { 2458 /* 2459 * Initially assume the same versioning as 2460 * prior luns for this target. 2461 */ 2462 path->device->protocol_version = 2463 otherdev->protocol_version; 2464 path->device->transport_version = 2465 otherdev->transport_version; 2466 } else { 2467 /* Until we know better, opt for safety */ 2468 path->device->protocol_version = 2; 2469 if (path->device->transport == XPORT_SPI) 2470 path->device->transport_version = 2; 2471 else 2472 path->device->transport_version = 0; 2473 } 2474 } 2475 2476 /* 2477 * XXX 2478 * For a device compliant with SPC-2 we should be able 2479 * to determine the transport version supported by 2480 * scrutinizing the version descriptors in the 2481 * inquiry buffer. 2482 */ 2483 2484 /* Tell the controller what we think */ 2485 memset(&cts, 0, sizeof(cts)); 2486 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2487 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2488 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2489 cts.transport = path->device->transport; 2490 cts.transport_version = path->device->transport_version; 2491 cts.protocol = path->device->protocol; 2492 cts.protocol_version = path->device->protocol_version; 2493 cts.proto_specific.valid = 0; 2494 cts.xport_specific.valid = 0; 2495 xpt_action((union ccb *)&cts); 2496 } 2497 2498 static void 2499 scsi_dev_advinfo(union ccb *start_ccb) 2500 { 2501 struct cam_ed *device; 2502 struct ccb_dev_advinfo *cdai; 2503 off_t amt; 2504 2505 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2506 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2507 device = start_ccb->ccb_h.path->device; 2508 cdai = &start_ccb->cdai; 2509 switch(cdai->buftype) { 2510 case CDAI_TYPE_SCSI_DEVID: 2511 if (cdai->flags & CDAI_FLAG_STORE) 2512 return; 2513 cdai->provsiz = device->device_id_len; 2514 if (device->device_id_len == 0) 2515 break; 2516 amt = device->device_id_len; 2517 if (cdai->provsiz > cdai->bufsiz) 2518 amt = cdai->bufsiz; 2519 memcpy(cdai->buf, device->device_id, amt); 2520 break; 2521 case CDAI_TYPE_SERIAL_NUM: 2522 if (cdai->flags & CDAI_FLAG_STORE) 2523 return; 2524 cdai->provsiz = device->serial_num_len; 2525 if (device->serial_num_len == 0) 2526 break; 2527 amt = device->serial_num_len; 2528 if (cdai->provsiz > cdai->bufsiz) 2529 amt = cdai->bufsiz; 2530 memcpy(cdai->buf, device->serial_num, amt); 2531 break; 2532 case CDAI_TYPE_PHYS_PATH: 2533 if (cdai->flags & CDAI_FLAG_STORE) { 2534 if (device->physpath != NULL) { 2535 free(device->physpath, M_CAMXPT); 2536 device->physpath = NULL; 2537 device->physpath_len = 0; 2538 } 2539 /* Clear existing buffer if zero length */ 2540 if (cdai->bufsiz == 0) 2541 break; 2542 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2543 if (device->physpath == NULL) { 2544 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2545 return; 2546 } 2547 device->physpath_len = cdai->bufsiz; 2548 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2549 } else { 2550 cdai->provsiz = device->physpath_len; 2551 if (device->physpath_len == 0) 2552 break; 2553 amt = device->physpath_len; 2554 if (cdai->provsiz > cdai->bufsiz) 2555 amt = cdai->bufsiz; 2556 memcpy(cdai->buf, device->physpath, amt); 2557 } 2558 break; 2559 case CDAI_TYPE_RCAPLONG: 2560 if (cdai->flags & CDAI_FLAG_STORE) { 2561 if (device->rcap_buf != NULL) { 2562 free(device->rcap_buf, M_CAMXPT); 2563 device->rcap_buf = NULL; 2564 } 2565 2566 device->rcap_len = cdai->bufsiz; 2567 /* Clear existing buffer if zero length */ 2568 if (cdai->bufsiz == 0) 2569 break; 2570 2571 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2572 M_NOWAIT); 2573 if (device->rcap_buf == NULL) { 2574 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2575 return; 2576 } 2577 2578 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2579 } else { 2580 cdai->provsiz = device->rcap_len; 2581 if (device->rcap_len == 0) 2582 break; 2583 amt = device->rcap_len; 2584 if (cdai->provsiz > cdai->bufsiz) 2585 amt = cdai->bufsiz; 2586 memcpy(cdai->buf, device->rcap_buf, amt); 2587 } 2588 break; 2589 case CDAI_TYPE_EXT_INQ: 2590 /* 2591 * We fetch extended inquiry data during probe, if 2592 * available. We don't allow changing it. 2593 */ 2594 if (cdai->flags & CDAI_FLAG_STORE) 2595 return; 2596 cdai->provsiz = device->ext_inq_len; 2597 if (device->ext_inq_len == 0) 2598 break; 2599 amt = device->ext_inq_len; 2600 if (cdai->provsiz > cdai->bufsiz) 2601 amt = cdai->bufsiz; 2602 memcpy(cdai->buf, device->ext_inq, amt); 2603 break; 2604 default: 2605 return; 2606 } 2607 start_ccb->ccb_h.status = CAM_REQ_CMP; 2608 2609 if (cdai->flags & CDAI_FLAG_STORE) { 2610 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2611 (void *)(uintptr_t)cdai->buftype); 2612 } 2613 } 2614 2615 static void 2616 scsi_action(union ccb *start_ccb) 2617 { 2618 2619 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2620 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2621 ("%s: ccb %p, func_code %#x should not be allocated from UMA zone\n", 2622 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2623 } 2624 2625 switch (start_ccb->ccb_h.func_code) { 2626 case XPT_SET_TRAN_SETTINGS: 2627 { 2628 scsi_set_transfer_settings(&start_ccb->cts, 2629 start_ccb->ccb_h.path, 2630 /*async_update*/FALSE); 2631 break; 2632 } 2633 case XPT_SCAN_BUS: 2634 case XPT_SCAN_TGT: 2635 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2636 break; 2637 case XPT_SCAN_LUN: 2638 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2639 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2640 start_ccb); 2641 break; 2642 case XPT_DEV_ADVINFO: 2643 { 2644 scsi_dev_advinfo(start_ccb); 2645 break; 2646 } 2647 default: 2648 xpt_action_default(start_ccb); 2649 break; 2650 } 2651 } 2652 2653 static void 2654 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2655 int async_update) 2656 { 2657 struct ccb_pathinq cpi; 2658 struct ccb_trans_settings cur_cts; 2659 struct ccb_trans_settings_scsi *scsi; 2660 struct ccb_trans_settings_scsi *cur_scsi; 2661 struct scsi_inquiry_data *inq_data; 2662 struct cam_ed *device; 2663 2664 if (path == NULL || (device = path->device) == NULL) { 2665 cts->ccb_h.status = CAM_PATH_INVALID; 2666 xpt_done((union ccb *)cts); 2667 return; 2668 } 2669 2670 if (cts->protocol == PROTO_UNKNOWN 2671 || cts->protocol == PROTO_UNSPECIFIED) { 2672 cts->protocol = device->protocol; 2673 cts->protocol_version = device->protocol_version; 2674 } 2675 2676 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2677 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2678 cts->protocol_version = device->protocol_version; 2679 2680 if (cts->protocol != device->protocol) { 2681 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2682 cts->protocol, device->protocol); 2683 cts->protocol = device->protocol; 2684 } 2685 2686 if (cts->protocol_version > device->protocol_version) { 2687 if (bootverbose) { 2688 xpt_print(path, 2689 "Down reving Protocol Version from %d to %d?\n", 2690 cts->protocol_version, 2691 device->protocol_version); 2692 } 2693 cts->protocol_version = device->protocol_version; 2694 } 2695 2696 if (cts->transport == XPORT_UNKNOWN 2697 || cts->transport == XPORT_UNSPECIFIED) { 2698 cts->transport = device->transport; 2699 cts->transport_version = device->transport_version; 2700 } 2701 2702 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2703 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2704 cts->transport_version = device->transport_version; 2705 2706 if (cts->transport != device->transport) { 2707 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2708 cts->transport, device->transport); 2709 cts->transport = device->transport; 2710 } 2711 2712 if (cts->transport_version > device->transport_version) { 2713 if (bootverbose) { 2714 xpt_print(path, 2715 "Down reving Transport Version from %d to %d?\n", 2716 cts->transport_version, 2717 device->transport_version); 2718 } 2719 cts->transport_version = device->transport_version; 2720 } 2721 2722 /* 2723 * Nothing more of interest to do unless 2724 * this is a device connected via the 2725 * SCSI protocol. 2726 */ 2727 if (cts->protocol != PROTO_SCSI) { 2728 if (async_update == FALSE) 2729 xpt_action_default((union ccb *)cts); 2730 return; 2731 } 2732 2733 inq_data = &device->inq_data; 2734 scsi = &cts->proto_specific.scsi; 2735 memset(&cpi, 0, sizeof(cpi)); 2736 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2737 cpi.ccb_h.func_code = XPT_PATH_INQ; 2738 xpt_action((union ccb *)&cpi); 2739 2740 /* SCSI specific sanity checking */ 2741 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2742 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2743 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2744 || (device->mintags == 0)) { 2745 /* 2746 * Can't tag on hardware that doesn't support tags, 2747 * doesn't have it enabled, or has broken tag support. 2748 */ 2749 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2750 } 2751 2752 if (async_update == FALSE) { 2753 /* 2754 * Perform sanity checking against what the 2755 * controller and device can do. 2756 */ 2757 memset(&cur_cts, 0, sizeof(cur_cts)); 2758 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2759 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2760 cur_cts.type = cts->type; 2761 xpt_action((union ccb *)&cur_cts); 2762 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2763 return; 2764 } 2765 cur_scsi = &cur_cts.proto_specific.scsi; 2766 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2767 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2768 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2769 } 2770 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2771 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2772 } 2773 2774 /* SPI specific sanity checking */ 2775 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2776 u_int spi3caps; 2777 struct ccb_trans_settings_spi *spi; 2778 struct ccb_trans_settings_spi *cur_spi; 2779 2780 spi = &cts->xport_specific.spi; 2781 2782 cur_spi = &cur_cts.xport_specific.spi; 2783 2784 /* Fill in any gaps in what the user gave us */ 2785 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2786 spi->sync_period = cur_spi->sync_period; 2787 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2788 spi->sync_period = 0; 2789 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2790 spi->sync_offset = cur_spi->sync_offset; 2791 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2792 spi->sync_offset = 0; 2793 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2794 spi->ppr_options = cur_spi->ppr_options; 2795 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2796 spi->ppr_options = 0; 2797 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2798 spi->bus_width = cur_spi->bus_width; 2799 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2800 spi->bus_width = 0; 2801 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2802 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2803 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2804 } 2805 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2806 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2807 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2808 && (inq_data->flags & SID_Sync) == 0 2809 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2810 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2811 /* Force async */ 2812 spi->sync_period = 0; 2813 spi->sync_offset = 0; 2814 } 2815 2816 switch (spi->bus_width) { 2817 case MSG_EXT_WDTR_BUS_32_BIT: 2818 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2819 || (inq_data->flags & SID_WBus32) != 0 2820 || cts->type == CTS_TYPE_USER_SETTINGS) 2821 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2822 break; 2823 /* Fall Through to 16-bit */ 2824 case MSG_EXT_WDTR_BUS_16_BIT: 2825 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2826 || (inq_data->flags & SID_WBus16) != 0 2827 || cts->type == CTS_TYPE_USER_SETTINGS) 2828 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2829 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2830 break; 2831 } 2832 /* Fall Through to 8-bit */ 2833 default: /* New bus width?? */ 2834 case MSG_EXT_WDTR_BUS_8_BIT: 2835 /* All targets can do this */ 2836 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2837 break; 2838 } 2839 2840 spi3caps = cpi.xport_specific.spi.ppr_options; 2841 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2842 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2843 spi3caps &= inq_data->spi3data; 2844 2845 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2846 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2847 2848 if ((spi3caps & SID_SPI_IUS) == 0) 2849 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2850 2851 if ((spi3caps & SID_SPI_QAS) == 0) 2852 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2853 2854 /* No SPI Transfer settings are allowed unless we are wide */ 2855 if (spi->bus_width == 0) 2856 spi->ppr_options = 0; 2857 2858 if ((spi->valid & CTS_SPI_VALID_DISC) 2859 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2860 /* 2861 * Can't tag queue without disconnection. 2862 */ 2863 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2864 scsi->valid |= CTS_SCSI_VALID_TQ; 2865 } 2866 2867 /* 2868 * If we are currently performing tagged transactions to 2869 * this device and want to change its negotiation parameters, 2870 * go non-tagged for a bit to give the controller a chance to 2871 * negotiate unhampered by tag messages. 2872 */ 2873 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2874 && (device->inq_flags & SID_CmdQue) != 0 2875 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2876 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2877 CTS_SPI_VALID_SYNC_OFFSET| 2878 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2879 scsi_toggle_tags(path); 2880 } 2881 2882 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2883 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2884 int device_tagenb; 2885 2886 /* 2887 * If we are transitioning from tags to no-tags or 2888 * vice-versa, we need to carefully freeze and restart 2889 * the queue so that we don't overlap tagged and non-tagged 2890 * commands. We also temporarily stop tags if there is 2891 * a change in transfer negotiation settings to allow 2892 * "tag-less" negotiation. 2893 */ 2894 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2895 || (device->inq_flags & SID_CmdQue) != 0) 2896 device_tagenb = TRUE; 2897 else 2898 device_tagenb = FALSE; 2899 2900 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2901 && device_tagenb == FALSE) 2902 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2903 && device_tagenb == TRUE)) { 2904 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2905 /* 2906 * Delay change to use tags until after a 2907 * few commands have gone to this device so 2908 * the controller has time to perform transfer 2909 * negotiations without tagged messages getting 2910 * in the way. 2911 */ 2912 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2913 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2914 } else { 2915 xpt_stop_tags(path); 2916 } 2917 } 2918 } 2919 if (async_update == FALSE) 2920 xpt_action_default((union ccb *)cts); 2921 } 2922 2923 static void 2924 scsi_toggle_tags(struct cam_path *path) 2925 { 2926 struct cam_ed *dev; 2927 2928 /* 2929 * Give controllers a chance to renegotiate 2930 * before starting tag operations. We 2931 * "toggle" tagged queuing off then on 2932 * which causes the tag enable command delay 2933 * counter to come into effect. 2934 */ 2935 dev = path->device; 2936 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2937 || ((dev->inq_flags & SID_CmdQue) != 0 2938 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2939 struct ccb_trans_settings cts; 2940 2941 memset(&cts, 0, sizeof(cts)); 2942 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2943 cts.protocol = PROTO_SCSI; 2944 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2945 cts.transport = XPORT_UNSPECIFIED; 2946 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2947 cts.proto_specific.scsi.flags = 0; 2948 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2949 scsi_set_transfer_settings(&cts, path, 2950 /*async_update*/TRUE); 2951 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2952 scsi_set_transfer_settings(&cts, path, 2953 /*async_update*/TRUE); 2954 } 2955 } 2956 2957 /* 2958 * Handle any per-device event notifications that require action by the XPT. 2959 */ 2960 static void 2961 scsi_dev_async(uint32_t async_code, struct cam_eb *bus, struct cam_et *target, 2962 struct cam_ed *device, void *async_arg) 2963 { 2964 cam_status status; 2965 struct cam_path newpath; 2966 2967 /* 2968 * We only need to handle events for real devices. 2969 */ 2970 if (target->target_id == CAM_TARGET_WILDCARD 2971 || device->lun_id == CAM_LUN_WILDCARD) 2972 return; 2973 2974 /* 2975 * We need our own path with wildcards expanded to 2976 * handle certain types of events. 2977 */ 2978 if ((async_code == AC_SENT_BDR) 2979 || (async_code == AC_BUS_RESET) 2980 || (async_code == AC_INQ_CHANGED)) 2981 status = xpt_compile_path(&newpath, NULL, 2982 bus->path_id, 2983 target->target_id, 2984 device->lun_id); 2985 else 2986 status = CAM_REQ_CMP_ERR; 2987 2988 if (status == CAM_REQ_CMP) { 2989 /* 2990 * Allow transfer negotiation to occur in a 2991 * tag free environment and after settle delay. 2992 */ 2993 if (async_code == AC_SENT_BDR 2994 || async_code == AC_BUS_RESET) { 2995 cam_freeze_devq(&newpath); 2996 cam_release_devq(&newpath, 2997 RELSIM_RELEASE_AFTER_TIMEOUT, 2998 /*reduction*/0, 2999 /*timeout*/scsi_delay, 3000 /*getcount_only*/0); 3001 scsi_toggle_tags(&newpath); 3002 } 3003 3004 if (async_code == AC_INQ_CHANGED) { 3005 /* 3006 * We've sent a start unit command, or 3007 * something similar to a device that 3008 * may have caused its inquiry data to 3009 * change. So we re-scan the device to 3010 * refresh the inquiry data for it. 3011 */ 3012 scsi_scan_lun(newpath.periph, &newpath, 3013 CAM_EXPECT_INQ_CHANGE, NULL); 3014 } 3015 xpt_release_path(&newpath); 3016 } else if (async_code == AC_LOST_DEVICE && 3017 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3018 device->flags |= CAM_DEV_UNCONFIGURED; 3019 xpt_release_device(device); 3020 } else if (async_code == AC_TRANSFER_NEG) { 3021 struct ccb_trans_settings *settings; 3022 struct cam_path path; 3023 3024 settings = (struct ccb_trans_settings *)async_arg; 3025 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3026 device->lun_id); 3027 scsi_set_transfer_settings(settings, &path, 3028 /*async_update*/TRUE); 3029 xpt_release_path(&path); 3030 } 3031 } 3032 3033 static void 3034 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3035 { 3036 struct ccb_pathinq cpi; 3037 struct cam_path *path = periph->path; 3038 3039 cam_periph_assert(periph, MA_OWNED); 3040 3041 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3042 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3043 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3044 xpt_action((union ccb*)cts); 3045 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3046 return; 3047 3048 /* Ask the SIM for its base transfer speed */ 3049 memset(&cpi, 0, sizeof(cpi)); 3050 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3051 cpi.ccb_h.func_code = XPT_PATH_INQ; 3052 xpt_action((union ccb *)&cpi); 3053 3054 /* Report connection speed */ 3055 *speed = cpi.base_transfer_speed; 3056 *freq = 0; 3057 3058 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3059 struct ccb_trans_settings_spi *spi = 3060 &cts->xport_specific.spi; 3061 3062 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3063 && spi->sync_offset != 0) { 3064 *freq = scsi_calc_syncsrate(spi->sync_period); 3065 *speed = *freq; 3066 } 3067 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3068 *speed *= (0x01 << spi->bus_width); 3069 } 3070 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3071 struct ccb_trans_settings_fc *fc = 3072 &cts->xport_specific.fc; 3073 3074 if (fc->valid & CTS_FC_VALID_SPEED) 3075 *speed = fc->bitrate; 3076 } 3077 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3078 struct ccb_trans_settings_sas *sas = 3079 &cts->xport_specific.sas; 3080 3081 if (sas->valid & CTS_SAS_VALID_SPEED) 3082 *speed = sas->bitrate; 3083 } 3084 } 3085 3086 static void 3087 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3088 { 3089 struct ccb_trans_settings cts; 3090 u_int speed, freq, mb; 3091 3092 memset(&cts, 0, sizeof(cts)); 3093 _scsi_announce_periph(periph, &speed, &freq, &cts); 3094 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3095 return; 3096 3097 mb = speed / 1000; 3098 if (mb > 0) 3099 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3100 periph->periph_name, periph->unit_number, 3101 mb, speed % 1000); 3102 else 3103 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3104 periph->unit_number, speed); 3105 /* Report additional information about SPI connections */ 3106 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3107 struct ccb_trans_settings_spi *spi; 3108 3109 spi = &cts.xport_specific.spi; 3110 if (freq != 0) { 3111 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3112 freq % 1000, 3113 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3114 ? " DT" : "", 3115 spi->sync_offset); 3116 } 3117 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3118 && spi->bus_width > 0) { 3119 if (freq != 0) { 3120 sbuf_cat(sb, ", "); 3121 } else { 3122 sbuf_cat(sb, " ("); 3123 } 3124 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3125 } else if (freq != 0) { 3126 sbuf_putc(sb, ')'); 3127 } 3128 } 3129 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3130 struct ccb_trans_settings_fc *fc; 3131 3132 fc = &cts.xport_specific.fc; 3133 if (fc->valid & CTS_FC_VALID_WWNN) 3134 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3135 if (fc->valid & CTS_FC_VALID_WWPN) 3136 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3137 if (fc->valid & CTS_FC_VALID_PORT) 3138 sbuf_printf(sb, " PortID 0x%x", fc->port); 3139 } 3140 sbuf_putc(sb, '\n'); 3141 } 3142 3143 static void 3144 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3145 { 3146 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3147 } 3148 3149 static void 3150 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3151 { 3152 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3153 } 3154 3155 static void 3156 scsi_proto_debug_out(union ccb *ccb) 3157 { 3158 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3159 struct cam_ed *device; 3160 3161 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3162 return; 3163 3164 device = ccb->ccb_h.path->device; 3165 CAM_DEBUG(ccb->ccb_h.path, 3166 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3167 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3168 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3169 } 3170