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