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/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/bus.h> 37 #include <sys/systm.h> 38 #include <sys/types.h> 39 #include <sys/malloc.h> 40 #include <sys/kernel.h> 41 #include <sys/time.h> 42 #include <sys/conf.h> 43 #include <sys/fcntl.h> 44 #include <sys/md5.h> 45 #include <sys/sbuf.h> 46 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/sysctl.h> 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_queue.h> 54 #include <cam/cam_periph.h> 55 #include <cam/cam_sim.h> 56 #include <cam/cam_xpt.h> 57 #include <cam/cam_xpt_sim.h> 58 #include <cam/cam_xpt_periph.h> 59 #include <cam/cam_xpt_internal.h> 60 #include <cam/cam_debug.h> 61 62 #include <cam/scsi/scsi_all.h> 63 #include <cam/scsi/scsi_message.h> 64 #include <cam/scsi/scsi_pass.h> 65 #include <machine/stdarg.h> /* for xpt_print below */ 66 #include "opt_cam.h" 67 68 struct scsi_quirk_entry { 69 struct scsi_inquiry_pattern inq_pat; 70 uint8_t quirks; 71 #define CAM_QUIRK_NOLUNS 0x01 72 #define CAM_QUIRK_NOVPDS 0x02 73 #define CAM_QUIRK_HILUNS 0x04 74 #define CAM_QUIRK_NOHILUNS 0x08 75 #define CAM_QUIRK_NORPTLUNS 0x10 76 u_int mintags; 77 u_int maxtags; 78 }; 79 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 80 81 static int cam_srch_hi = 0; 82 SYSCTL_INT(_kern_cam, OID_AUTO, cam_srch_hi, CTLFLAG_RWTUN, 83 &cam_srch_hi, 0, "Search above LUN 7 for SCSI3 and greater devices"); 84 85 #define CAM_SCSI2_MAXLUN 8 86 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 87 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 88 RPL_LUNDATA_ATYP_PERIPH) || \ 89 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_FLAT)) 91 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 92 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 93 RPL_LUNDATA_ATYP_PERIPH) { \ 94 (lval) = (lp)->luns[(i)].lundata[1]; \ 95 } else { \ 96 (lval) = (lp)->luns[(i)].lundata[0]; \ 97 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 98 (lval) <<= 8; \ 99 (lval) |= (lp)->luns[(i)].lundata[1]; \ 100 } 101 #define CAM_GET_LUN(lp, i, lval) \ 102 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 103 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 104 105 /* 106 * If we're not quirked to search <= the first 8 luns 107 * and we are either quirked to search above lun 8, 108 * or we're > SCSI-2 and we've enabled hilun searching, 109 * or we're > SCSI-2 and the last lun was a success, 110 * we can look for luns above lun 8. 111 */ 112 #define CAN_SRCH_HI_SPARSE(dv) \ 113 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 114 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 115 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 116 117 #define CAN_SRCH_HI_DENSE(dv) \ 118 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 119 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 120 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 121 122 static periph_init_t probe_periph_init; 123 124 static struct periph_driver probe_driver = 125 { 126 probe_periph_init, "probe", 127 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 128 CAM_PERIPH_DRV_EARLY 129 }; 130 131 PERIPHDRIVER_DECLARE(probe, probe_driver); 132 133 typedef enum { 134 PROBE_TUR, 135 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 136 PROBE_FULL_INQUIRY, 137 PROBE_REPORT_LUNS, 138 PROBE_MODE_SENSE, 139 PROBE_SUPPORTED_VPD_LIST, 140 PROBE_DEVICE_ID, 141 PROBE_EXTENDED_INQUIRY, 142 PROBE_SERIAL_NUM, 143 PROBE_TUR_FOR_NEGOTIATION, 144 PROBE_INQUIRY_BASIC_DV1, 145 PROBE_INQUIRY_BASIC_DV2, 146 PROBE_DV_EXIT, 147 PROBE_DONE, 148 PROBE_INVALID 149 } probe_action; 150 151 static char *probe_action_text[] = { 152 "PROBE_TUR", 153 "PROBE_INQUIRY", 154 "PROBE_FULL_INQUIRY", 155 "PROBE_REPORT_LUNS", 156 "PROBE_MODE_SENSE", 157 "PROBE_SUPPORTED_VPD_LIST", 158 "PROBE_DEVICE_ID", 159 "PROBE_EXTENDED_INQUIRY", 160 "PROBE_SERIAL_NUM", 161 "PROBE_TUR_FOR_NEGOTIATION", 162 "PROBE_INQUIRY_BASIC_DV1", 163 "PROBE_INQUIRY_BASIC_DV2", 164 "PROBE_DV_EXIT", 165 "PROBE_DONE", 166 "PROBE_INVALID" 167 }; 168 169 #define PROBE_SET_ACTION(softc, newaction) \ 170 do { \ 171 char **text; \ 172 text = probe_action_text; \ 173 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 174 ("Probe %s to %s\n", text[(softc)->action], \ 175 text[(newaction)])); \ 176 (softc)->action = (newaction); \ 177 } while(0) 178 179 typedef enum { 180 PROBE_INQUIRY_CKSUM = 0x01, 181 PROBE_NO_ANNOUNCE = 0x04, 182 PROBE_EXTLUN = 0x08 183 } probe_flags; 184 185 typedef struct { 186 TAILQ_HEAD(, ccb_hdr) request_ccbs; 187 probe_action action; 188 probe_flags flags; 189 MD5_CTX context; 190 uint8_t digest[16]; 191 struct cam_periph *periph; 192 } probe_softc; 193 194 static const char quantum[] = "QUANTUM"; 195 static const char sony[] = "SONY"; 196 static const char west_digital[] = "WDIGTL"; 197 static const char samsung[] = "SAMSUNG"; 198 static const char seagate[] = "SEAGATE"; 199 static const char microp[] = "MICROP"; 200 201 static struct scsi_quirk_entry scsi_quirk_table[] = 202 { 203 { 204 /* Reports QUEUE FULL for temporary resource shortages */ 205 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 206 /*quirks*/0, /*mintags*/24, /*maxtags*/32 207 }, 208 { 209 /* Reports QUEUE FULL for temporary resource shortages */ 210 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 211 /*quirks*/0, /*mintags*/24, /*maxtags*/32 212 }, 213 { 214 /* Reports QUEUE FULL for temporary resource shortages */ 215 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 216 /*quirks*/0, /*mintags*/24, /*maxtags*/32 217 }, 218 { 219 /* Broken tagged queuing drive */ 220 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 221 /*quirks*/0, /*mintags*/0, /*maxtags*/0 222 }, 223 { 224 /* Broken tagged queuing drive */ 225 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 226 /*quirks*/0, /*mintags*/0, /*maxtags*/0 227 }, 228 { 229 /* Broken tagged queuing drive */ 230 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 231 /*quirks*/0, /*mintags*/0, /*maxtags*/0 232 }, 233 { 234 /* 235 * Unfortunately, the Quantum Atlas III has the same 236 * problem as the Atlas II drives above. 237 * Reported by: "Johan Granlund" <johan@granlund.nu> 238 * 239 * For future reference, the drive with the problem was: 240 * QUANTUM QM39100TD-SW N1B0 241 * 242 * It's possible that Quantum will fix the problem in later 243 * firmware revisions. If that happens, the quirk entry 244 * will need to be made specific to the firmware revisions 245 * with the problem. 246 * 247 */ 248 /* Reports QUEUE FULL for temporary resource shortages */ 249 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 250 /*quirks*/0, /*mintags*/24, /*maxtags*/32 251 }, 252 { 253 /* 254 * 18 Gig Atlas III, same problem as the 9G version. 255 * Reported by: Andre Albsmeier 256 * <andre.albsmeier@mchp.siemens.de> 257 * 258 * For future reference, the drive with the problem was: 259 * QUANTUM QM318000TD-S N491 260 */ 261 /* Reports QUEUE FULL for temporary resource shortages */ 262 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 263 /*quirks*/0, /*mintags*/24, /*maxtags*/32 264 }, 265 { 266 /* 267 * Broken tagged queuing drive 268 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 269 * and: Martin Renters <martin@tdc.on.ca> 270 */ 271 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 272 /*quirks*/0, /*mintags*/0, /*maxtags*/0 273 }, 274 /* 275 * The Seagate Medalist Pro drives have very poor write 276 * performance with anything more than 2 tags. 277 * 278 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 279 * Drive: <SEAGATE ST36530N 1444> 280 * 281 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 282 * Drive: <SEAGATE ST34520W 1281> 283 * 284 * No one has actually reported that the 9G version 285 * (ST39140*) of the Medalist Pro has the same problem, but 286 * we're assuming that it does because the 4G and 6.5G 287 * versions of the drive are broken. 288 */ 289 { 290 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 291 /*quirks*/0, /*mintags*/2, /*maxtags*/2 292 }, 293 { 294 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 295 /*quirks*/0, /*mintags*/2, /*maxtags*/2 296 }, 297 { 298 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 299 /*quirks*/0, /*mintags*/2, /*maxtags*/2 300 }, 301 { 302 /* 303 * Experiences command timeouts under load with a 304 * tag count higher than 55. 305 */ 306 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 307 /*quirks*/0, /*mintags*/2, /*maxtags*/55 308 }, 309 { 310 /* 311 * Slow when tagged queueing is enabled. Write performance 312 * steadily drops off with more and more concurrent 313 * transactions. Best sequential write performance with 314 * tagged queueing turned off and write caching turned on. 315 * 316 * PR: kern/10398 317 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 318 * Drive: DCAS-34330 w/ "S65A" firmware. 319 * 320 * The drive with the problem had the "S65A" firmware 321 * revision, and has also been reported (by Stephen J. 322 * Roznowski <sjr@home.net>) for a drive with the "S61A" 323 * firmware revision. 324 * 325 * Although no one has reported problems with the 2 gig 326 * version of the DCAS drive, the assumption is that it 327 * has the same problems as the 4 gig version. Therefore 328 * this quirk entries disables tagged queueing for all 329 * DCAS drives. 330 */ 331 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 332 /*quirks*/0, /*mintags*/0, /*maxtags*/0 333 }, 334 { 335 /* Broken tagged queuing drive */ 336 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 337 /*quirks*/0, /*mintags*/0, /*maxtags*/0 338 }, 339 { 340 /* Broken tagged queuing drive */ 341 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 342 /*quirks*/0, /*mintags*/0, /*maxtags*/0 343 }, 344 { 345 /* This does not support other than LUN 0 */ 346 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 347 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 348 }, 349 { 350 /* 351 * Broken tagged queuing drive. 352 * Submitted by: 353 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 354 * in PR kern/9535 355 */ 356 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 357 /*quirks*/0, /*mintags*/0, /*maxtags*/0 358 }, 359 { 360 /* 361 * Slow when tagged queueing is enabled. (1.5MB/sec versus 362 * 8MB/sec.) 363 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 364 * Best performance with these drives is achieved with 365 * tagged queueing turned off, and write caching turned on. 366 */ 367 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 368 /*quirks*/0, /*mintags*/0, /*maxtags*/0 369 }, 370 { 371 /* 372 * Slow when tagged queueing is enabled. (1.5MB/sec versus 373 * 8MB/sec.) 374 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 375 * Best performance with these drives is achieved with 376 * tagged queueing turned off, and write caching turned on. 377 */ 378 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 379 /*quirks*/0, /*mintags*/0, /*maxtags*/0 380 }, 381 { 382 /* 383 * Doesn't handle queue full condition correctly, 384 * so we need to limit maxtags to what the device 385 * can handle instead of determining this automatically. 386 */ 387 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 388 /*quirks*/0, /*mintags*/2, /*maxtags*/32 389 }, 390 { 391 /* Really only one LUN */ 392 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 393 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 394 }, 395 { 396 /* I can't believe we need a quirk for DPT volumes. */ 397 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 398 CAM_QUIRK_NOLUNS, 399 /*mintags*/0, /*maxtags*/255 400 }, 401 { 402 /* 403 * Many Sony CDROM drives don't like multi-LUN probing. 404 */ 405 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 406 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 407 }, 408 { 409 /* 410 * This drive doesn't like multiple LUN probing. 411 * Submitted by: Parag Patel <parag@cgt.com> 412 */ 413 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 414 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 415 }, 416 { 417 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 418 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 419 }, 420 { 421 /* 422 * The 8200 doesn't like multi-lun probing, and probably 423 * don't like serial number requests either. 424 */ 425 { 426 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 427 "EXB-8200*", "*" 428 }, 429 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 430 }, 431 { 432 /* 433 * Let's try the same as above, but for a drive that says 434 * it's an IPL-6860 but is actually an EXB 8200. 435 */ 436 { 437 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 438 "IPL-6860*", "*" 439 }, 440 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 441 }, 442 { 443 /* 444 * These Hitachi drives don't like multi-lun probing. 445 * The PR submitter has a DK319H, but says that the Linux 446 * kernel has a similar work-around for the DK312 and DK314, 447 * so all DK31* drives are quirked here. 448 * PR: misc/18793 449 * Submitted by: Paul Haddad <paul@pth.com> 450 */ 451 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 452 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 453 }, 454 { 455 /* 456 * The Hitachi CJ series with J8A8 firmware apparently has 457 * problems with tagged commands. 458 * PR: 23536 459 * Reported by: amagai@nue.org 460 */ 461 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 462 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 463 }, 464 { 465 /* 466 * These are the large storage arrays. 467 * Submitted by: William Carrel <william.carrel@infospace.com> 468 */ 469 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 470 CAM_QUIRK_HILUNS, 2, 1024 471 }, 472 { 473 /* 474 * This old revision of the TDC3600 is also SCSI-1, and 475 * hangs upon serial number probing. 476 */ 477 { 478 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 479 " TDC 3600", "U07:" 480 }, 481 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 482 }, 483 { 484 /* 485 * Would repond to all LUNs if asked for. 486 */ 487 { 488 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 489 "CP150", "*" 490 }, 491 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 492 }, 493 { 494 /* 495 * Would repond to all LUNs if asked for. 496 */ 497 { 498 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 499 "96X2*", "*" 500 }, 501 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 502 }, 503 { 504 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 505 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 506 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 507 }, 508 { 509 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 510 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 511 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 512 }, 513 { 514 /* TeraSolutions special settings for TRC-22 RAID */ 515 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 516 /*quirks*/0, /*mintags*/55, /*maxtags*/255 517 }, 518 { 519 /* Veritas Storage Appliance */ 520 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 521 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 522 }, 523 { 524 /* 525 * Would respond to all LUNs. Device type and removable 526 * flag are jumper-selectable. 527 */ 528 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 529 "Tahiti 1", "*" 530 }, 531 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 532 }, 533 { 534 /* EasyRAID E5A aka. areca ARC-6010 */ 535 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 536 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 537 }, 538 { 539 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 540 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 541 }, 542 { 543 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 544 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 545 }, 546 { 547 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 548 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 549 }, 550 { 551 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 552 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 553 }, 554 { 555 /* Default tagged queuing parameters for all devices */ 556 { 557 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 558 /*vendor*/"*", /*product*/"*", /*revision*/"*" 559 }, 560 /*quirks*/0, /*mintags*/2, /*maxtags*/255 561 }, 562 }; 563 564 static cam_status proberegister(struct cam_periph *periph, 565 void *arg); 566 static void probeschedule(struct cam_periph *probe_periph); 567 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 568 static void proberequestdefaultnegotiation(struct cam_periph *periph); 569 static int proberequestbackoff(struct cam_periph *periph, 570 struct cam_ed *device); 571 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 572 static void probe_purge_old(struct cam_path *path, 573 struct scsi_report_luns_data *new, 574 probe_flags flags); 575 static void probecleanup(struct cam_periph *periph); 576 static void scsi_find_quirk(struct cam_ed *device); 577 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 578 static void scsi_scan_lun(struct cam_periph *periph, 579 struct cam_path *path, cam_flags flags, 580 union ccb *ccb); 581 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 582 static struct cam_ed * 583 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 584 lun_id_t lun_id); 585 static void scsi_devise_transport(struct cam_path *path); 586 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 587 struct cam_path *path, 588 int async_update); 589 static void scsi_toggle_tags(struct cam_path *path); 590 static void scsi_dev_async(uint32_t async_code, 591 struct cam_eb *bus, 592 struct cam_et *target, 593 struct cam_ed *device, 594 void *async_arg); 595 static void scsi_action(union ccb *start_ccb); 596 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 597 static void scsi_proto_announce_sbuf(struct cam_ed *device, 598 struct sbuf *sb); 599 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 600 struct sbuf *sb); 601 static void scsi_proto_debug_out(union ccb *ccb); 602 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 603 604 static struct xpt_xport_ops scsi_xport_ops = { 605 .alloc_device = scsi_alloc_device, 606 .action = scsi_action, 607 .async = scsi_dev_async, 608 .announce_sbuf = scsi_announce_periph_sbuf, 609 }; 610 #define SCSI_XPT_XPORT(x, X) \ 611 static struct xpt_xport scsi_xport_ ## x = { \ 612 .xport = XPORT_ ## X, \ 613 .name = #x, \ 614 .ops = &scsi_xport_ops, \ 615 }; \ 616 CAM_XPT_XPORT(scsi_xport_ ## x); 617 618 SCSI_XPT_XPORT(spi, SPI); 619 SCSI_XPT_XPORT(sas, SAS); 620 SCSI_XPT_XPORT(fc, FC); 621 SCSI_XPT_XPORT(usb, USB); 622 SCSI_XPT_XPORT(iscsi, ISCSI); 623 SCSI_XPT_XPORT(srp, SRP); 624 SCSI_XPT_XPORT(ppb, PPB); 625 626 #undef SCSI_XPORT_XPORT 627 628 static struct xpt_proto_ops scsi_proto_ops = { 629 .announce_sbuf = scsi_proto_announce_sbuf, 630 .denounce_sbuf = scsi_proto_denounce_sbuf, 631 .debug_out = scsi_proto_debug_out, 632 }; 633 static struct xpt_proto scsi_proto = { 634 .proto = PROTO_SCSI, 635 .name = "scsi", 636 .ops = &scsi_proto_ops, 637 }; 638 CAM_XPT_PROTO(scsi_proto); 639 640 static void 641 probe_periph_init(void) 642 { 643 } 644 645 static cam_status 646 proberegister(struct cam_periph *periph, void *arg) 647 { 648 union ccb *request_ccb; /* CCB representing the probe request */ 649 probe_softc *softc; 650 651 request_ccb = (union ccb *)arg; 652 if (request_ccb == NULL) { 653 printf("proberegister: no probe CCB, " 654 "can't register device\n"); 655 return(CAM_REQ_CMP_ERR); 656 } 657 658 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 659 660 if (softc == NULL) { 661 printf("proberegister: Unable to probe new device. " 662 "Unable to allocate softc\n"); 663 return(CAM_REQ_CMP_ERR); 664 } 665 TAILQ_INIT(&softc->request_ccbs); 666 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 667 periph_links.tqe); 668 softc->flags = 0; 669 periph->softc = softc; 670 softc->periph = periph; 671 softc->action = PROBE_INVALID; 672 if (cam_periph_acquire(periph) != 0) 673 return (CAM_REQ_CMP_ERR); 674 675 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 676 scsi_devise_transport(periph->path); 677 678 /* 679 * Ensure we've waited at least a bus settle 680 * delay before attempting to probe the device. 681 * For HBAs that don't do bus resets, this won't make a difference. 682 */ 683 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 684 scsi_delay); 685 probeschedule(periph); 686 return(CAM_REQ_CMP); 687 } 688 689 static void 690 probeschedule(struct cam_periph *periph) 691 { 692 struct ccb_pathinq cpi; 693 union ccb *ccb; 694 probe_softc *softc; 695 696 softc = (probe_softc *)periph->softc; 697 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 698 699 xpt_path_inq(&cpi, periph->path); 700 701 /* 702 * If a device has gone away and another device, or the same one, 703 * is back in the same place, it should have a unit attention 704 * condition pending. It will not report the unit attention in 705 * response to an inquiry, which may leave invalid transfer 706 * negotiations in effect. The TUR will reveal the unit attention 707 * condition. Only send the TUR for lun 0, since some devices 708 * will get confused by commands other than inquiry to non-existent 709 * luns. If you think a device has gone away start your scan from 710 * lun 0. This will insure that any bogus transfer settings are 711 * invalidated. 712 * 713 * If we haven't seen the device before and the controller supports 714 * some kind of transfer negotiation, negotiate with the first 715 * sent command if no bus reset was performed at startup. This 716 * ensures that the device is not confused by transfer negotiation 717 * settings left over by loader or BIOS action. 718 */ 719 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 720 && (ccb->ccb_h.target_lun == 0)) { 721 PROBE_SET_ACTION(softc, PROBE_TUR); 722 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 723 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 724 proberequestdefaultnegotiation(periph); 725 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 726 } else { 727 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 728 } 729 730 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 731 softc->flags |= PROBE_NO_ANNOUNCE; 732 else 733 softc->flags &= ~PROBE_NO_ANNOUNCE; 734 735 if (cpi.hba_misc & PIM_EXTLUNS) 736 softc->flags |= PROBE_EXTLUN; 737 else 738 softc->flags &= ~PROBE_EXTLUN; 739 740 xpt_schedule(periph, CAM_PRIORITY_XPT); 741 } 742 743 static void 744 probestart(struct cam_periph *periph, union ccb *start_ccb) 745 { 746 /* Probe the device that our peripheral driver points to */ 747 struct ccb_scsiio *csio; 748 probe_softc *softc; 749 750 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 751 752 softc = (probe_softc *)periph->softc; 753 csio = &start_ccb->csio; 754 again: 755 756 switch (softc->action) { 757 case PROBE_TUR: 758 case PROBE_TUR_FOR_NEGOTIATION: 759 case PROBE_DV_EXIT: 760 { 761 scsi_test_unit_ready(csio, 762 /*retries*/4, 763 probedone, 764 MSG_SIMPLE_Q_TAG, 765 SSD_FULL_SIZE, 766 /*timeout*/60000); 767 break; 768 } 769 case PROBE_INQUIRY: 770 case PROBE_FULL_INQUIRY: 771 { 772 u_int inquiry_len; 773 struct scsi_inquiry_data *inq_buf; 774 775 inq_buf = &periph->path->device->inq_data; 776 777 /* 778 * If the device is currently configured, we calculate an 779 * MD5 checksum of the inquiry data, and if the serial number 780 * length is greater than 0, add the serial number data 781 * into the checksum as well. Once the inquiry and the 782 * serial number check finish, we attempt to figure out 783 * whether we still have the same device. 784 */ 785 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 786 softc->flags &= ~PROBE_INQUIRY_CKSUM; 787 } else if ((softc->flags & PROBE_INQUIRY_CKSUM) == 0) { 788 MD5Init(&softc->context); 789 MD5Update(&softc->context, (unsigned char *)inq_buf, 790 sizeof(struct scsi_inquiry_data)); 791 if (periph->path->device->serial_num_len > 0) { 792 MD5Update(&softc->context, 793 periph->path->device->serial_num, 794 periph->path->device->serial_num_len); 795 } 796 MD5Final(softc->digest, &softc->context); 797 softc->flags |= PROBE_INQUIRY_CKSUM; 798 } 799 800 if (softc->action == PROBE_INQUIRY) 801 inquiry_len = SHORT_INQUIRY_LENGTH; 802 else 803 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 804 805 /* 806 * Some parallel SCSI devices fail to send an 807 * ignore wide residue message when dealing with 808 * odd length inquiry requests. Round up to be 809 * safe. 810 */ 811 inquiry_len = roundup2(inquiry_len, 2); 812 813 scsi_inquiry(csio, 814 /*retries*/4, 815 probedone, 816 MSG_SIMPLE_Q_TAG, 817 (uint8_t *)inq_buf, 818 inquiry_len, 819 /*evpd*/FALSE, 820 /*page_code*/0, 821 SSD_MIN_SIZE, 822 /*timeout*/60 * 1000); 823 break; 824 } 825 case PROBE_REPORT_LUNS: 826 { 827 void *rp; 828 829 rp = malloc(periph->path->target->rpl_size, 830 M_CAMXPT, M_NOWAIT | M_ZERO); 831 if (rp == NULL) { 832 struct scsi_inquiry_data *inq_buf; 833 inq_buf = &periph->path->device->inq_data; 834 xpt_print(periph->path, 835 "Unable to alloc report luns storage\n"); 836 if (INQ_DATA_TQ_ENABLED(inq_buf)) 837 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 838 else 839 PROBE_SET_ACTION(softc, 840 PROBE_SUPPORTED_VPD_LIST); 841 goto again; 842 } 843 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 844 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 845 SSD_FULL_SIZE, 60000); break; 846 break; 847 } 848 case PROBE_MODE_SENSE: 849 { 850 void *mode_buf; 851 int mode_buf_len; 852 853 mode_buf_len = sizeof(struct scsi_mode_header_6) 854 + sizeof(struct scsi_mode_blk_desc) 855 + sizeof(struct scsi_control_page); 856 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 857 if (mode_buf != NULL) { 858 scsi_mode_sense(csio, 859 /*retries*/4, 860 probedone, 861 MSG_SIMPLE_Q_TAG, 862 /*dbd*/FALSE, 863 SMS_PAGE_CTRL_CURRENT, 864 SMS_CONTROL_MODE_PAGE, 865 mode_buf, 866 mode_buf_len, 867 SSD_FULL_SIZE, 868 /*timeout*/60000); 869 break; 870 } 871 xpt_print(periph->path, "Unable to mode sense control page - " 872 "malloc failure\n"); 873 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 874 } 875 /* FALLTHROUGH */ 876 case PROBE_SUPPORTED_VPD_LIST: 877 { 878 struct scsi_vpd_supported_page_list *vpd_list; 879 struct cam_ed *device; 880 881 vpd_list = NULL; 882 device = periph->path->device; 883 884 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 885 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 886 M_NOWAIT | M_ZERO); 887 888 if (vpd_list != NULL) { 889 scsi_inquiry(csio, 890 /*retries*/4, 891 probedone, 892 MSG_SIMPLE_Q_TAG, 893 (uint8_t *)vpd_list, 894 sizeof(*vpd_list), 895 /*evpd*/TRUE, 896 SVPD_SUPPORTED_PAGE_LIST, 897 SSD_MIN_SIZE, 898 /*timeout*/60 * 1000); 899 break; 900 } 901 done: 902 /* 903 * We'll have to do without, let our probedone 904 * routine finish up for us. 905 */ 906 start_ccb->csio.data_ptr = NULL; 907 cam_freeze_devq(periph->path); 908 cam_periph_doacquire(periph); 909 probedone(periph, start_ccb); 910 return; 911 } 912 case PROBE_DEVICE_ID: 913 { 914 struct scsi_vpd_device_id *devid; 915 916 devid = NULL; 917 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 918 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 919 M_NOWAIT | M_ZERO); 920 921 if (devid != NULL) { 922 scsi_inquiry(csio, 923 /*retries*/4, 924 probedone, 925 MSG_SIMPLE_Q_TAG, 926 (uint8_t *)devid, 927 SVPD_DEVICE_ID_MAX_SIZE, 928 /*evpd*/TRUE, 929 SVPD_DEVICE_ID, 930 SSD_MIN_SIZE, 931 /*timeout*/60 * 1000); 932 break; 933 } 934 goto done; 935 } 936 case PROBE_EXTENDED_INQUIRY: 937 { 938 struct scsi_vpd_extended_inquiry_data *ext_inq; 939 940 ext_inq = NULL; 941 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 942 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 943 M_NOWAIT | M_ZERO); 944 945 if (ext_inq != NULL) { 946 scsi_inquiry(csio, 947 /*retries*/4, 948 probedone, 949 MSG_SIMPLE_Q_TAG, 950 (uint8_t *)ext_inq, 951 sizeof(*ext_inq), 952 /*evpd*/TRUE, 953 SVPD_EXTENDED_INQUIRY_DATA, 954 SSD_MIN_SIZE, 955 /*timeout*/60 * 1000); 956 break; 957 } 958 /* 959 * We'll have to do without, let our probedone 960 * routine finish up for us. 961 */ 962 goto done; 963 } 964 case PROBE_SERIAL_NUM: 965 { 966 struct scsi_vpd_unit_serial_number *serial_buf; 967 struct cam_ed* device; 968 969 serial_buf = NULL; 970 device = periph->path->device; 971 if (device->serial_num != NULL) { 972 free(device->serial_num, M_CAMXPT); 973 device->serial_num = NULL; 974 device->serial_num_len = 0; 975 } 976 977 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 978 serial_buf = (struct scsi_vpd_unit_serial_number *) 979 malloc(sizeof(*serial_buf), M_CAMXPT, 980 M_NOWAIT|M_ZERO); 981 982 if (serial_buf != NULL) { 983 scsi_inquiry(csio, 984 /*retries*/4, 985 probedone, 986 MSG_SIMPLE_Q_TAG, 987 (uint8_t *)serial_buf, 988 sizeof(*serial_buf), 989 /*evpd*/TRUE, 990 SVPD_UNIT_SERIAL_NUMBER, 991 SSD_MIN_SIZE, 992 /*timeout*/60 * 1000); 993 break; 994 } 995 goto done; 996 } 997 case PROBE_INQUIRY_BASIC_DV1: 998 case PROBE_INQUIRY_BASIC_DV2: 999 { 1000 u_int inquiry_len; 1001 struct scsi_inquiry_data *inq_buf; 1002 1003 inq_buf = &periph->path->device->inq_data; 1004 inquiry_len = roundup2(SID_ADDITIONAL_LENGTH(inq_buf), 2); 1005 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 1006 if (inq_buf == NULL) { 1007 xpt_print(periph->path, "malloc failure- skipping Basic" 1008 "Domain Validation\n"); 1009 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1010 scsi_test_unit_ready(csio, 1011 /*retries*/4, 1012 probedone, 1013 MSG_SIMPLE_Q_TAG, 1014 SSD_FULL_SIZE, 1015 /*timeout*/60000); 1016 break; 1017 } 1018 1019 scsi_inquiry(csio, 1020 /*retries*/4, 1021 probedone, 1022 MSG_SIMPLE_Q_TAG, 1023 (uint8_t *)inq_buf, 1024 inquiry_len, 1025 /*evpd*/FALSE, 1026 /*page_code*/0, 1027 SSD_MIN_SIZE, 1028 /*timeout*/60 * 1000); 1029 break; 1030 } 1031 default: 1032 panic("probestart: invalid action state 0x%x\n", softc->action); 1033 } 1034 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1035 cam_periph_doacquire(periph); 1036 xpt_action(start_ccb); 1037 } 1038 1039 static void 1040 proberequestdefaultnegotiation(struct cam_periph *periph) 1041 { 1042 struct ccb_trans_settings cts; 1043 1044 memset(&cts, 0, sizeof(cts)); 1045 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1046 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1047 cts.type = CTS_TYPE_USER_SETTINGS; 1048 xpt_action((union ccb *)&cts); 1049 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1050 return; 1051 } 1052 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1053 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1054 xpt_action((union ccb *)&cts); 1055 } 1056 1057 /* 1058 * Backoff Negotiation Code- only pertinent for SPI devices. 1059 */ 1060 static int 1061 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1062 { 1063 struct ccb_trans_settings cts; 1064 struct ccb_trans_settings_spi *spi; 1065 1066 memset(&cts, 0, sizeof (cts)); 1067 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1068 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1069 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1070 xpt_action((union ccb *)&cts); 1071 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1072 if (bootverbose) { 1073 xpt_print(periph->path, 1074 "failed to get current device settings\n"); 1075 } 1076 return (0); 1077 } 1078 if (cts.transport != XPORT_SPI) { 1079 if (bootverbose) { 1080 xpt_print(periph->path, "not SPI transport\n"); 1081 } 1082 return (0); 1083 } 1084 spi = &cts.xport_specific.spi; 1085 1086 /* 1087 * We cannot renegotiate sync rate if we don't have one. 1088 */ 1089 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1090 if (bootverbose) { 1091 xpt_print(periph->path, "no sync rate known\n"); 1092 } 1093 return (0); 1094 } 1095 1096 /* 1097 * We'll assert that we don't have to touch PPR options- the 1098 * SIM will see what we do with period and offset and adjust 1099 * the PPR options as appropriate. 1100 */ 1101 1102 /* 1103 * A sync rate with unknown or zero offset is nonsensical. 1104 * A sync period of zero means Async. 1105 */ 1106 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1107 || spi->sync_offset == 0 || spi->sync_period == 0) { 1108 if (bootverbose) { 1109 xpt_print(periph->path, "no sync rate available\n"); 1110 } 1111 return (0); 1112 } 1113 1114 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1115 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1116 ("hit async: giving up on DV\n")); 1117 return (0); 1118 } 1119 1120 /* 1121 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1122 * We don't try to remember 'last' settings to see if the SIM actually 1123 * gets into the speed we want to set. We check on the SIM telling 1124 * us that a requested speed is bad, but otherwise don't try and 1125 * check the speed due to the asynchronous and handshake nature 1126 * of speed setting. 1127 */ 1128 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1129 for (;;) { 1130 spi->sync_period++; 1131 if (spi->sync_period >= 0xf) { 1132 spi->sync_period = 0; 1133 spi->sync_offset = 0; 1134 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1135 ("setting to async for DV\n")); 1136 /* 1137 * Once we hit async, we don't want to try 1138 * any more settings. 1139 */ 1140 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1141 } else if (bootverbose) { 1142 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1143 ("DV: period 0x%x\n", spi->sync_period)); 1144 printf("setting period to 0x%x\n", spi->sync_period); 1145 } 1146 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1147 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1148 xpt_action((union ccb *)&cts); 1149 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1150 break; 1151 } 1152 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1153 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1154 if (spi->sync_period == 0) { 1155 return (0); 1156 } 1157 } 1158 return (1); 1159 } 1160 1161 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1162 1163 static void 1164 probedone(struct cam_periph *periph, union ccb *done_ccb) 1165 { 1166 probe_softc *softc; 1167 struct cam_path *path; 1168 struct scsi_inquiry_data *inq_buf; 1169 uint32_t priority; 1170 1171 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1172 1173 softc = (probe_softc *)periph->softc; 1174 path = done_ccb->ccb_h.path; 1175 priority = done_ccb->ccb_h.pinfo.priority; 1176 cam_periph_assert(periph, MA_OWNED); 1177 1178 switch (softc->action) { 1179 case PROBE_TUR: 1180 { 1181 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1182 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1183 ERESTART) { 1184 outr: 1185 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1186 cam_release_devq(path, 0, 0, 0, FALSE); 1187 return; 1188 } 1189 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1190 /* Don't wedge the queue */ 1191 xpt_release_devq(done_ccb->ccb_h.path, 1192 /*count*/1, 1193 /*run_queue*/TRUE); 1194 } 1195 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1196 xpt_release_ccb(done_ccb); 1197 xpt_schedule(periph, priority); 1198 out: 1199 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1200 cam_release_devq(path, 0, 0, 0, FALSE); 1201 cam_periph_release_locked(periph); 1202 return; 1203 } 1204 case PROBE_INQUIRY: 1205 case PROBE_FULL_INQUIRY: 1206 { 1207 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1208 uint8_t periph_qual; 1209 1210 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1211 scsi_find_quirk(path->device); 1212 inq_buf = &path->device->inq_data; 1213 1214 periph_qual = SID_QUAL(inq_buf); 1215 1216 if (periph_qual == SID_QUAL_LU_CONNECTED || 1217 periph_qual == SID_QUAL_LU_OFFLINE) { 1218 /* 1219 * We conservatively request only 1220 * SHORT_INQUIRY_LEN bytes of inquiry 1221 * information during our first try 1222 * at sending an INQUIRY. If the device 1223 * has more information to give, 1224 * perform a second request specifying 1225 * the amount of information the device 1226 * is willing to give. 1227 */ 1228 if (softc->action == PROBE_INQUIRY 1229 && SID_ADDITIONAL_LENGTH(inq_buf) 1230 > SHORT_INQUIRY_LENGTH) { 1231 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1232 xpt_release_ccb(done_ccb); 1233 xpt_schedule(periph, priority); 1234 goto out; 1235 } 1236 1237 scsi_devise_transport(path); 1238 1239 if (path->device->lun_id == 0 && 1240 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1241 (SCSI_QUIRK(path->device)->quirks & 1242 CAM_QUIRK_NORPTLUNS) == 0) { 1243 PROBE_SET_ACTION(softc, 1244 PROBE_REPORT_LUNS); 1245 /* 1246 * Start with room for *one* lun. 1247 */ 1248 periph->path->target->rpl_size = 16; 1249 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1250 PROBE_SET_ACTION(softc, 1251 PROBE_MODE_SENSE); 1252 else 1253 PROBE_SET_ACTION(softc, 1254 PROBE_SUPPORTED_VPD_LIST); 1255 1256 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1257 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1258 xpt_acquire_device(path->device); 1259 } 1260 xpt_release_ccb(done_ccb); 1261 xpt_schedule(periph, priority); 1262 goto out; 1263 } else if (path->device->lun_id == 0 && 1264 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1265 (SCSI_QUIRK(path->device)->quirks & 1266 CAM_QUIRK_NORPTLUNS) == 0) { 1267 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1268 periph->path->target->rpl_size = 16; 1269 xpt_release_ccb(done_ccb); 1270 xpt_schedule(periph, priority); 1271 goto out; 1272 } 1273 } else if (cam_periph_error(done_ccb, 0, 1274 done_ccb->ccb_h.target_lun > 0 1275 ? SF_RETRY_UA|SF_QUIET_IR 1276 : SF_RETRY_UA) == ERESTART) { 1277 goto outr; 1278 } else { 1279 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1280 /* Don't wedge the queue */ 1281 xpt_release_devq(done_ccb->ccb_h.path, 1282 /*count*/1, /*run_queue*/TRUE); 1283 } 1284 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1285 } 1286 /* 1287 * If we get to this point, we got an error status back 1288 * from the inquiry and the error status doesn't require 1289 * automatically retrying the command. Therefore, the 1290 * inquiry failed. If we had inquiry information before 1291 * for this device, but this latest inquiry command failed, 1292 * the device has probably gone away. If this device isn't 1293 * already marked unconfigured, notify the peripheral 1294 * drivers that this device is no more. 1295 */ 1296 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1297 /* Send the async notification. */ 1298 xpt_async(AC_LOST_DEVICE, path, NULL); 1299 PROBE_SET_ACTION(softc, PROBE_INVALID); 1300 1301 xpt_release_ccb(done_ccb); 1302 break; 1303 } 1304 case PROBE_REPORT_LUNS: 1305 { 1306 struct ccb_scsiio *csio; 1307 struct scsi_report_luns_data *lp; 1308 u_int nlun, maxlun; 1309 1310 csio = &done_ccb->csio; 1311 1312 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1313 nlun = scsi_4btoul(lp->length) / 8; 1314 maxlun = (csio->dxfer_len / 8) - 1; 1315 1316 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1317 if (cam_periph_error(done_ccb, 0, 1318 done_ccb->ccb_h.target_lun > 0 ? 1319 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1320 ERESTART) { 1321 goto outr; 1322 } 1323 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1324 xpt_release_devq(done_ccb->ccb_h.path, 1, 1325 TRUE); 1326 } 1327 free(lp, M_CAMXPT); 1328 lp = NULL; 1329 } else if (nlun > maxlun) { 1330 /* 1331 * Reallocate and retry to cover all luns 1332 */ 1333 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1334 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1335 nlun)); 1336 free(lp, M_CAMXPT); 1337 path->target->rpl_size = (nlun << 3) + 8; 1338 xpt_release_ccb(done_ccb); 1339 xpt_schedule(periph, priority); 1340 goto out; 1341 } else if (nlun == 0) { 1342 /* 1343 * If there don't appear to be any luns, bail. 1344 */ 1345 free(lp, M_CAMXPT); 1346 lp = NULL; 1347 } else { 1348 lun_id_t lun; 1349 int idx; 1350 1351 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1352 ("Probe: %u lun(s) reported\n", nlun)); 1353 1354 CAM_GET_LUN(lp, 0, lun); 1355 /* 1356 * If the first lun is not lun 0, then either there 1357 * is no lun 0 in the list, or the list is unsorted. 1358 */ 1359 if (lun != 0) { 1360 for (idx = 0; idx < nlun; idx++) { 1361 CAM_GET_LUN(lp, idx, lun); 1362 if (lun == 0) { 1363 break; 1364 } 1365 } 1366 if (idx != nlun) { 1367 uint8_t tlun[8]; 1368 memcpy(tlun, 1369 lp->luns[0].lundata, 8); 1370 memcpy(lp->luns[0].lundata, 1371 lp->luns[idx].lundata, 8); 1372 memcpy(lp->luns[idx].lundata, 1373 tlun, 8); 1374 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1375 ("lun 0 in position %u\n", idx)); 1376 } 1377 } 1378 /* 1379 * If we have an old lun list, We can either 1380 * retest luns that appear to have been dropped, 1381 * or just nuke them. We'll opt for the latter. 1382 * This function will also install the new list 1383 * in the target structure. 1384 */ 1385 probe_purge_old(path, lp, softc->flags); 1386 lp = NULL; 1387 } 1388 /* The processing above should either exit via a `goto 1389 * out` or leave the `lp` variable `NULL` and (if 1390 * applicable) `free()` the storage to which it had 1391 * pointed. Assert here that is the case. 1392 */ 1393 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1394 inq_buf = &path->device->inq_data; 1395 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1396 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1397 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1398 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1399 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1400 else 1401 PROBE_SET_ACTION(softc, 1402 PROBE_SUPPORTED_VPD_LIST); 1403 xpt_release_ccb(done_ccb); 1404 xpt_schedule(periph, priority); 1405 goto out; 1406 } 1407 PROBE_SET_ACTION(softc, PROBE_INVALID); 1408 xpt_release_ccb(done_ccb); 1409 break; 1410 } 1411 case PROBE_MODE_SENSE: 1412 { 1413 struct ccb_scsiio *csio; 1414 struct scsi_mode_header_6 *mode_hdr; 1415 1416 csio = &done_ccb->csio; 1417 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1418 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1419 struct scsi_control_page *page; 1420 uint8_t *offset; 1421 1422 offset = ((uint8_t *)&mode_hdr[1]) 1423 + mode_hdr->blk_desc_len; 1424 page = (struct scsi_control_page *)offset; 1425 path->device->queue_flags = page->queue_flags; 1426 } else if (cam_periph_error(done_ccb, 0, 1427 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1428 goto outr; 1429 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1430 /* Don't wedge the queue */ 1431 xpt_release_devq(done_ccb->ccb_h.path, 1432 /*count*/1, /*run_queue*/TRUE); 1433 } 1434 xpt_release_ccb(done_ccb); 1435 free(mode_hdr, M_CAMXPT); 1436 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1437 xpt_schedule(periph, priority); 1438 goto out; 1439 } 1440 case PROBE_SUPPORTED_VPD_LIST: 1441 { 1442 struct ccb_scsiio *csio; 1443 struct scsi_vpd_supported_page_list *page_list; 1444 1445 csio = &done_ccb->csio; 1446 page_list = 1447 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1448 1449 if (path->device->supported_vpds != NULL) { 1450 free(path->device->supported_vpds, M_CAMXPT); 1451 path->device->supported_vpds = NULL; 1452 path->device->supported_vpds_len = 0; 1453 } 1454 1455 if (page_list == NULL) { 1456 /* 1457 * Don't process the command as it was never sent 1458 */ 1459 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1460 /* Got vpd list */ 1461 path->device->supported_vpds_len = page_list->length + 1462 SVPD_SUPPORTED_PAGES_HDR_LEN; 1463 path->device->supported_vpds = (uint8_t *)page_list; 1464 xpt_release_ccb(done_ccb); 1465 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1466 xpt_schedule(periph, priority); 1467 goto out; 1468 } else if (cam_periph_error(done_ccb, 0, 1469 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1470 goto outr; 1471 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1472 /* Don't wedge the queue */ 1473 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1474 /*run_queue*/TRUE); 1475 } 1476 1477 if (page_list) 1478 free(page_list, M_CAMXPT); 1479 /* No VPDs available, skip to device check. */ 1480 csio->data_ptr = NULL; 1481 goto probe_device_check; 1482 } 1483 case PROBE_DEVICE_ID: 1484 { 1485 struct scsi_vpd_device_id *devid; 1486 struct ccb_scsiio *csio; 1487 uint32_t length = 0; 1488 1489 csio = &done_ccb->csio; 1490 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1491 1492 /* Clean up from previous instance of this device */ 1493 if (path->device->device_id != NULL) { 1494 path->device->device_id_len = 0; 1495 free(path->device->device_id, M_CAMXPT); 1496 path->device->device_id = NULL; 1497 } 1498 1499 if (devid == NULL) { 1500 /* Don't process the command as it was never sent */ 1501 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1502 length = scsi_2btoul(devid->length); 1503 if (length != 0) { 1504 /* 1505 * NB: device_id_len is actual response 1506 * size, not buffer size. 1507 */ 1508 path->device->device_id_len = length + 1509 SVPD_DEVICE_ID_HDR_LEN; 1510 path->device->device_id = (uint8_t *)devid; 1511 } 1512 } else if (cam_periph_error(done_ccb, 0, 1513 SF_RETRY_UA) == ERESTART) { 1514 goto outr; 1515 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1516 /* Don't wedge the queue */ 1517 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1518 /*run_queue*/TRUE); 1519 } 1520 1521 /* Free the device id space if we don't use it */ 1522 if (devid && length == 0) 1523 free(devid, M_CAMXPT); 1524 xpt_release_ccb(done_ccb); 1525 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1526 xpt_schedule(periph, priority); 1527 goto out; 1528 } 1529 case PROBE_EXTENDED_INQUIRY: { 1530 struct scsi_vpd_extended_inquiry_data *ext_inq; 1531 struct ccb_scsiio *csio; 1532 int32_t length = 0; 1533 1534 csio = &done_ccb->csio; 1535 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1536 csio->data_ptr; 1537 if (path->device->ext_inq != NULL) { 1538 path->device->ext_inq_len = 0; 1539 free(path->device->ext_inq, M_CAMXPT); 1540 path->device->ext_inq = NULL; 1541 } 1542 1543 if (ext_inq == NULL) { 1544 /* Don't process the command as it was never sent */ 1545 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1546 length = scsi_2btoul(ext_inq->page_length) + 1547 __offsetof(struct scsi_vpd_extended_inquiry_data, 1548 flags1); 1549 length = min(length, sizeof(*ext_inq)); 1550 length -= csio->resid; 1551 if (length > 0) { 1552 path->device->ext_inq_len = length; 1553 path->device->ext_inq = (uint8_t *)ext_inq; 1554 } 1555 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1556 ERESTART) { 1557 goto outr; 1558 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1559 /* Don't wedge the queue */ 1560 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1561 /*run_queue*/TRUE); 1562 } 1563 1564 /* Free the device id space if we don't use it */ 1565 if (ext_inq && length <= 0) 1566 free(ext_inq, M_CAMXPT); 1567 xpt_release_ccb(done_ccb); 1568 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1569 xpt_schedule(periph, priority); 1570 goto out; 1571 } 1572 1573 probe_device_check: 1574 case PROBE_SERIAL_NUM: 1575 { 1576 struct ccb_scsiio *csio; 1577 struct scsi_vpd_unit_serial_number *serial_buf; 1578 uint32_t priority; 1579 int changed; 1580 int have_serialnum; 1581 1582 changed = 1; 1583 have_serialnum = 0; 1584 csio = &done_ccb->csio; 1585 priority = done_ccb->ccb_h.pinfo.priority; 1586 serial_buf = 1587 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1588 1589 if (serial_buf == NULL) { 1590 /* 1591 * Don't process the command as it was never sent 1592 */ 1593 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1594 && (serial_buf->length > 0)) { 1595 have_serialnum = 1; 1596 path->device->serial_num = 1597 (uint8_t *)malloc((serial_buf->length + 1), 1598 M_CAMXPT, M_NOWAIT); 1599 if (path->device->serial_num != NULL) { 1600 int start, slen; 1601 1602 start = strspn(serial_buf->serial_num, " "); 1603 slen = serial_buf->length - start; 1604 if (slen <= 0) { 1605 /* 1606 * SPC5r05 says that an all-space serial 1607 * number means no product serial number 1608 * is available 1609 */ 1610 slen = 0; 1611 } 1612 /* 1613 * In apparent violation of the spec, some 1614 * devices pad their serial numbers with 1615 * trailing spaces. Remove them. 1616 */ 1617 while (slen > 0 && 1618 serial_buf->serial_num[start + slen - 1] == ' ') 1619 slen--; 1620 memcpy(path->device->serial_num, 1621 &serial_buf->serial_num[start], slen); 1622 path->device->serial_num_len = slen; 1623 path->device->serial_num[slen] = '\0'; 1624 } 1625 } else if (cam_periph_error(done_ccb, 0, 1626 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1627 goto outr; 1628 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1629 /* Don't wedge the queue */ 1630 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1631 /*run_queue*/TRUE); 1632 } 1633 1634 /* 1635 * Let's see if we have seen this device before. 1636 */ 1637 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1638 MD5_CTX context; 1639 uint8_t digest[16]; 1640 1641 MD5Init(&context); 1642 1643 MD5Update(&context, 1644 (unsigned char *)&path->device->inq_data, 1645 sizeof(struct scsi_inquiry_data)); 1646 1647 if (have_serialnum) 1648 MD5Update(&context, path->device->serial_num, 1649 path->device->serial_num_len); 1650 1651 MD5Final(digest, &context); 1652 if (bcmp(softc->digest, digest, 16) == 0) 1653 changed = 0; 1654 1655 /* 1656 * XXX Do we need to do a TUR in order to ensure 1657 * that the device really hasn't changed??? 1658 */ 1659 if ((changed != 0) 1660 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1661 xpt_async(AC_LOST_DEVICE, path, NULL); 1662 } 1663 if (serial_buf != NULL) 1664 free(serial_buf, M_CAMXPT); 1665 1666 if (changed != 0) { 1667 /* 1668 * Now that we have all the necessary 1669 * information to safely perform transfer 1670 * negotiations... Controllers don't perform 1671 * any negotiation or tagged queuing until 1672 * after the first XPT_SET_TRAN_SETTINGS ccb is 1673 * received. So, on a new device, just retrieve 1674 * the user settings, and set them as the current 1675 * settings to set the device up. 1676 */ 1677 proberequestdefaultnegotiation(periph); 1678 xpt_release_ccb(done_ccb); 1679 1680 /* 1681 * Perform a TUR to allow the controller to 1682 * perform any necessary transfer negotiation. 1683 */ 1684 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1685 xpt_schedule(periph, priority); 1686 goto out; 1687 } 1688 xpt_release_ccb(done_ccb); 1689 break; 1690 } 1691 case PROBE_TUR_FOR_NEGOTIATION: 1692 case PROBE_DV_EXIT: 1693 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1694 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1695 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1696 goto outr; 1697 } 1698 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1699 /* Don't wedge the queue */ 1700 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1701 /*run_queue*/TRUE); 1702 } 1703 /* 1704 * Do Domain Validation for lun 0 on devices that claim 1705 * to support Synchronous Transfer modes. 1706 */ 1707 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1708 && done_ccb->ccb_h.target_lun == 0 1709 && (path->device->inq_data.flags & SID_Sync) != 0 1710 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1711 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1712 ("Begin Domain Validation\n")); 1713 path->device->flags |= CAM_DEV_IN_DV; 1714 xpt_release_ccb(done_ccb); 1715 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1716 xpt_schedule(periph, priority); 1717 goto out; 1718 } 1719 if (softc->action == PROBE_DV_EXIT) { 1720 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1721 ("Leave Domain Validation\n")); 1722 } 1723 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1724 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1725 xpt_acquire_device(path->device); 1726 } 1727 path->device->flags &= 1728 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1729 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1730 /* Inform the XPT that a new device has been found */ 1731 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1732 xpt_action(done_ccb); 1733 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1734 done_ccb); 1735 } 1736 PROBE_SET_ACTION(softc, PROBE_DONE); 1737 xpt_release_ccb(done_ccb); 1738 break; 1739 case PROBE_INQUIRY_BASIC_DV1: 1740 case PROBE_INQUIRY_BASIC_DV2: 1741 { 1742 struct scsi_inquiry_data *nbuf; 1743 struct ccb_scsiio *csio; 1744 1745 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1746 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1747 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1748 goto outr; 1749 } 1750 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1751 /* Don't wedge the queue */ 1752 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1753 /*run_queue*/TRUE); 1754 } 1755 csio = &done_ccb->csio; 1756 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1757 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1758 xpt_print(path, 1759 "inquiry data fails comparison at DV%d step\n", 1760 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1761 if (proberequestbackoff(periph, path->device)) { 1762 path->device->flags &= ~CAM_DEV_IN_DV; 1763 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1764 } else { 1765 /* give up */ 1766 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1767 } 1768 free(nbuf, M_CAMXPT); 1769 xpt_release_ccb(done_ccb); 1770 xpt_schedule(periph, priority); 1771 goto out; 1772 } 1773 free(nbuf, M_CAMXPT); 1774 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1775 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1776 xpt_release_ccb(done_ccb); 1777 xpt_schedule(periph, priority); 1778 goto out; 1779 } 1780 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1781 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1782 ("Leave Domain Validation Successfully\n")); 1783 } 1784 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1785 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1786 xpt_acquire_device(path->device); 1787 } 1788 path->device->flags &= 1789 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1790 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1791 /* Inform the XPT that a new device has been found */ 1792 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1793 xpt_action(done_ccb); 1794 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1795 done_ccb); 1796 } 1797 PROBE_SET_ACTION(softc, PROBE_DONE); 1798 xpt_release_ccb(done_ccb); 1799 break; 1800 } 1801 default: 1802 panic("probedone: invalid action state 0x%x\n", softc->action); 1803 } 1804 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1805 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1806 done_ccb->ccb_h.status = CAM_REQ_CMP; 1807 xpt_done(done_ccb); 1808 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1809 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1810 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1811 cam_release_devq(path, 0, 0, 0, FALSE); 1812 cam_periph_release_locked(periph); 1813 cam_periph_invalidate(periph); 1814 cam_periph_release_locked(periph); 1815 } else { 1816 probeschedule(periph); 1817 goto out; 1818 } 1819 } 1820 1821 static void 1822 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1823 probe_flags flags) 1824 { 1825 struct cam_path *tp; 1826 struct scsi_report_luns_data *old; 1827 u_int idx1, idx2, nlun_old, nlun_new; 1828 lun_id_t this_lun; 1829 uint8_t *ol, *nl; 1830 1831 if (path->target == NULL) { 1832 return; 1833 } 1834 mtx_lock(&path->target->luns_mtx); 1835 old = path->target->luns; 1836 path->target->luns = new; 1837 mtx_unlock(&path->target->luns_mtx); 1838 if (old == NULL) 1839 return; 1840 nlun_old = scsi_4btoul(old->length) / 8; 1841 nlun_new = scsi_4btoul(new->length) / 8; 1842 1843 /* 1844 * We are not going to assume sorted lists. Deal. 1845 */ 1846 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1847 ol = old->luns[idx1].lundata; 1848 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1849 nl = new->luns[idx2].lundata; 1850 if (memcmp(nl, ol, 8) == 0) { 1851 break; 1852 } 1853 } 1854 if (idx2 < nlun_new) { 1855 continue; 1856 } 1857 /* 1858 * An 'old' item not in the 'new' list. 1859 * Nuke it. Except that if it is lun 0, 1860 * that would be what the probe state 1861 * machine is currently working on, 1862 * so we won't do that. 1863 */ 1864 CAM_GET_LUN(old, idx1, this_lun); 1865 if (this_lun == 0) { 1866 continue; 1867 } 1868 1869 /* 1870 * We also cannot nuke it if it is 1871 * not in a lun format we understand 1872 * and replace the LUN with a "simple" LUN 1873 * if that is all the HBA supports. 1874 */ 1875 if (!(flags & PROBE_EXTLUN)) { 1876 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1877 continue; 1878 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1879 } 1880 1881 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1882 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1883 xpt_async(AC_LOST_DEVICE, tp, NULL); 1884 xpt_free_path(tp); 1885 } 1886 } 1887 free(old, M_CAMXPT); 1888 } 1889 1890 static void 1891 probecleanup(struct cam_periph *periph) 1892 { 1893 free(periph->softc, M_CAMXPT); 1894 } 1895 1896 static void 1897 scsi_find_quirk(struct cam_ed *device) 1898 { 1899 struct scsi_quirk_entry *quirk; 1900 caddr_t match; 1901 1902 match = cam_quirkmatch((caddr_t)&device->inq_data, 1903 (caddr_t)scsi_quirk_table, 1904 nitems(scsi_quirk_table), 1905 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1906 1907 if (match == NULL) 1908 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1909 1910 quirk = (struct scsi_quirk_entry *)match; 1911 device->quirk = quirk; 1912 device->mintags = quirk->mintags; 1913 device->maxtags = quirk->maxtags; 1914 } 1915 1916 typedef struct { 1917 union ccb *request_ccb; 1918 struct ccb_pathinq *cpi; 1919 int counter; 1920 int lunindex[0]; 1921 } scsi_scan_bus_info; 1922 1923 /* 1924 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1925 * As the scan progresses, scsi_scan_bus is used as the 1926 * callback on completion function. 1927 */ 1928 static void 1929 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1930 { 1931 struct mtx *mtx; 1932 1933 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1934 ("scsi_scan_bus\n")); 1935 switch (request_ccb->ccb_h.func_code) { 1936 case XPT_SCAN_BUS: 1937 case XPT_SCAN_TGT: 1938 { 1939 scsi_scan_bus_info *scan_info; 1940 union ccb *work_ccb, *reset_ccb; 1941 struct cam_path *path; 1942 u_int i; 1943 u_int low_target, max_target; 1944 u_int initiator_id; 1945 1946 /* Find out the characteristics of the bus */ 1947 work_ccb = xpt_alloc_ccb_nowait(); 1948 if (work_ccb == NULL) { 1949 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1950 xpt_done(request_ccb); 1951 return; 1952 } 1953 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1954 request_ccb->ccb_h.pinfo.priority); 1955 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1956 xpt_action(work_ccb); 1957 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1958 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1959 xpt_free_ccb(work_ccb); 1960 xpt_done(request_ccb); 1961 return; 1962 } 1963 1964 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1965 /* 1966 * Can't scan the bus on an adapter that 1967 * cannot perform the initiator role. 1968 */ 1969 request_ccb->ccb_h.status = CAM_REQ_CMP; 1970 xpt_free_ccb(work_ccb); 1971 xpt_done(request_ccb); 1972 return; 1973 } 1974 1975 /* We may need to reset bus first, if we haven't done it yet. */ 1976 if ((work_ccb->cpi.hba_inquiry & 1977 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1978 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1979 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1980 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1981 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1982 CAM_PRIORITY_NONE); 1983 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1984 xpt_action(reset_ccb); 1985 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1986 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1987 xpt_free_ccb(reset_ccb); 1988 xpt_free_ccb(work_ccb); 1989 xpt_done(request_ccb); 1990 return; 1991 } 1992 xpt_free_ccb(reset_ccb); 1993 } 1994 1995 /* Save some state for use while we probe for devices */ 1996 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1997 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1998 if (scan_info == NULL) { 1999 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2000 xpt_free_ccb(work_ccb); 2001 xpt_done(request_ccb); 2002 return; 2003 } 2004 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2005 ("SCAN start for %p\n", scan_info)); 2006 scan_info->request_ccb = request_ccb; 2007 scan_info->cpi = &work_ccb->cpi; 2008 2009 /* Cache on our stack so we can work asynchronously */ 2010 max_target = scan_info->cpi->max_target; 2011 low_target = 0; 2012 initiator_id = scan_info->cpi->initiator_id; 2013 2014 /* 2015 * We can scan all targets in parallel, or do it sequentially. 2016 */ 2017 2018 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2019 max_target = low_target = request_ccb->ccb_h.target_id; 2020 scan_info->counter = 0; 2021 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2022 max_target = 0; 2023 scan_info->counter = 0; 2024 } else { 2025 scan_info->counter = scan_info->cpi->max_target + 1; 2026 if (scan_info->cpi->initiator_id < scan_info->counter) { 2027 scan_info->counter--; 2028 } 2029 } 2030 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2031 mtx_unlock(mtx); 2032 2033 for (i = low_target; i <= max_target; i++) { 2034 cam_status status; 2035 if (i == initiator_id) 2036 continue; 2037 2038 status = xpt_create_path(&path, NULL, 2039 request_ccb->ccb_h.path_id, 2040 i, 0); 2041 if (status != CAM_REQ_CMP) { 2042 printf("scsi_scan_bus: xpt_create_path failed" 2043 " with status %#x, bus scan halted\n", 2044 status); 2045 free(scan_info, M_CAMXPT); 2046 request_ccb->ccb_h.status = status; 2047 xpt_free_ccb(work_ccb); 2048 xpt_done(request_ccb); 2049 break; 2050 } 2051 work_ccb = xpt_alloc_ccb_nowait(); 2052 if (work_ccb == NULL) { 2053 xpt_free_ccb((union ccb *)scan_info->cpi); 2054 free(scan_info, M_CAMXPT); 2055 xpt_free_path(path); 2056 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2057 xpt_done(request_ccb); 2058 break; 2059 } 2060 xpt_setup_ccb(&work_ccb->ccb_h, path, 2061 request_ccb->ccb_h.pinfo.priority); 2062 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2063 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2064 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2065 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2066 work_ccb->crcn.flags = request_ccb->crcn.flags; 2067 xpt_action(work_ccb); 2068 } 2069 2070 mtx_lock(mtx); 2071 break; 2072 } 2073 case XPT_SCAN_LUN: 2074 { 2075 cam_status status; 2076 struct cam_path *path, *oldpath; 2077 scsi_scan_bus_info *scan_info; 2078 struct cam_et *target; 2079 struct cam_ed *device, *nextdev; 2080 int next_target; 2081 path_id_t path_id; 2082 target_id_t target_id; 2083 lun_id_t lun_id; 2084 2085 oldpath = request_ccb->ccb_h.path; 2086 2087 status = cam_ccb_status(request_ccb); 2088 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2089 path_id = request_ccb->ccb_h.path_id; 2090 target_id = request_ccb->ccb_h.target_id; 2091 lun_id = request_ccb->ccb_h.target_lun; 2092 target = request_ccb->ccb_h.path->target; 2093 next_target = 1; 2094 2095 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2096 mtx_lock(mtx); 2097 mtx_lock(&target->luns_mtx); 2098 if (target->luns) { 2099 lun_id_t first; 2100 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2101 2102 /* 2103 * Make sure we skip over lun 0 if it's the first member 2104 * of the list as we've actually just finished probing 2105 * it. 2106 */ 2107 CAM_GET_LUN(target->luns, 0, first); 2108 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2109 scan_info->lunindex[target_id]++; 2110 } 2111 2112 /* 2113 * Skip any LUNs that the HBA can't deal with. 2114 */ 2115 while (scan_info->lunindex[target_id] < nluns) { 2116 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2117 CAM_GET_LUN(target->luns, 2118 scan_info->lunindex[target_id], 2119 lun_id); 2120 break; 2121 } 2122 2123 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2124 scan_info->lunindex[target_id])) { 2125 CAM_GET_SIMPLE_LUN(target->luns, 2126 scan_info->lunindex[target_id], 2127 lun_id); 2128 break; 2129 } 2130 2131 scan_info->lunindex[target_id]++; 2132 } 2133 2134 if (scan_info->lunindex[target_id] < nluns) { 2135 mtx_unlock(&target->luns_mtx); 2136 next_target = 0; 2137 CAM_DEBUG(request_ccb->ccb_h.path, 2138 CAM_DEBUG_PROBE, 2139 ("next lun to try at index %u is %jx\n", 2140 scan_info->lunindex[target_id], 2141 (uintmax_t)lun_id)); 2142 scan_info->lunindex[target_id]++; 2143 } else { 2144 mtx_unlock(&target->luns_mtx); 2145 /* We're done with scanning all luns. */ 2146 } 2147 } else { 2148 mtx_unlock(&target->luns_mtx); 2149 device = request_ccb->ccb_h.path->device; 2150 /* Continue sequential LUN scan if: */ 2151 /* -- we have more LUNs that need recheck */ 2152 mtx_lock(&target->bus->eb_mtx); 2153 nextdev = device; 2154 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2155 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2156 break; 2157 mtx_unlock(&target->bus->eb_mtx); 2158 if (nextdev != NULL) { 2159 next_target = 0; 2160 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2161 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2162 next_target = 1; 2163 /* -- this LUN is connected and its SCSI version 2164 * allows more LUNs. */ 2165 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2166 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2167 CAN_SRCH_HI_DENSE(device)) 2168 next_target = 0; 2169 /* -- this LUN is disconnected, its SCSI version 2170 * allows more LUNs and we guess they may be. */ 2171 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2172 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2173 CAN_SRCH_HI_SPARSE(device)) 2174 next_target = 0; 2175 } 2176 if (next_target == 0) { 2177 lun_id++; 2178 if (lun_id > scan_info->cpi->max_lun) 2179 next_target = 1; 2180 } 2181 } 2182 2183 /* 2184 * Check to see if we scan any further luns. 2185 */ 2186 if (next_target) { 2187 int done; 2188 2189 /* 2190 * Free the current request path- we're done with it. 2191 */ 2192 xpt_free_path(oldpath); 2193 hop_again: 2194 done = 0; 2195 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2196 done = 1; 2197 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2198 scan_info->counter++; 2199 if (scan_info->counter == 2200 scan_info->cpi->initiator_id) { 2201 scan_info->counter++; 2202 } 2203 if (scan_info->counter >= 2204 scan_info->cpi->max_target+1) { 2205 done = 1; 2206 } 2207 } else { 2208 scan_info->counter--; 2209 if (scan_info->counter == 0) { 2210 done = 1; 2211 } 2212 } 2213 if (done) { 2214 mtx_unlock(mtx); 2215 xpt_free_ccb(request_ccb); 2216 xpt_free_ccb((union ccb *)scan_info->cpi); 2217 request_ccb = scan_info->request_ccb; 2218 CAM_DEBUG(request_ccb->ccb_h.path, 2219 CAM_DEBUG_TRACE, 2220 ("SCAN done for %p\n", scan_info)); 2221 free(scan_info, M_CAMXPT); 2222 request_ccb->ccb_h.status = CAM_REQ_CMP; 2223 xpt_done(request_ccb); 2224 break; 2225 } 2226 2227 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2228 mtx_unlock(mtx); 2229 xpt_free_ccb(request_ccb); 2230 break; 2231 } 2232 status = xpt_create_path(&path, NULL, 2233 scan_info->request_ccb->ccb_h.path_id, 2234 scan_info->counter, 0); 2235 if (status != CAM_REQ_CMP) { 2236 mtx_unlock(mtx); 2237 printf("scsi_scan_bus: xpt_create_path failed" 2238 " with status %#x, bus scan halted\n", 2239 status); 2240 xpt_free_ccb(request_ccb); 2241 xpt_free_ccb((union ccb *)scan_info->cpi); 2242 request_ccb = scan_info->request_ccb; 2243 free(scan_info, M_CAMXPT); 2244 request_ccb->ccb_h.status = status; 2245 xpt_done(request_ccb); 2246 break; 2247 } 2248 xpt_setup_ccb(&request_ccb->ccb_h, path, 2249 request_ccb->ccb_h.pinfo.priority); 2250 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2251 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2252 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2253 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2254 request_ccb->crcn.flags = 2255 scan_info->request_ccb->crcn.flags; 2256 } else { 2257 status = xpt_create_path(&path, NULL, 2258 path_id, target_id, lun_id); 2259 /* 2260 * Free the old request path- we're done with it. We 2261 * do this *after* creating the new path so that 2262 * we don't remove a target that has our lun list 2263 * in the case that lun 0 is not present. 2264 */ 2265 xpt_free_path(oldpath); 2266 if (status != CAM_REQ_CMP) { 2267 printf("scsi_scan_bus: xpt_create_path failed " 2268 "with status %#x, halting LUN scan\n", 2269 status); 2270 goto hop_again; 2271 } 2272 xpt_setup_ccb(&request_ccb->ccb_h, path, 2273 request_ccb->ccb_h.pinfo.priority); 2274 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2275 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2276 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2277 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2278 request_ccb->crcn.flags = 2279 scan_info->request_ccb->crcn.flags; 2280 } 2281 mtx_unlock(mtx); 2282 xpt_action(request_ccb); 2283 break; 2284 } 2285 default: 2286 break; 2287 } 2288 } 2289 2290 static void 2291 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2292 cam_flags flags, union ccb *request_ccb) 2293 { 2294 struct ccb_pathinq cpi; 2295 cam_status status; 2296 struct cam_path *new_path; 2297 struct cam_periph *old_periph; 2298 int lock; 2299 2300 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2301 2302 memset(&cpi, 0, sizeof(cpi)); 2303 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2304 cpi.ccb_h.func_code = XPT_PATH_INQ; 2305 xpt_action((union ccb *)&cpi); 2306 2307 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2308 if (request_ccb != NULL) { 2309 request_ccb->ccb_h.status = cpi.ccb_h.status; 2310 xpt_done(request_ccb); 2311 } 2312 return; 2313 } 2314 2315 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2316 /* 2317 * Can't scan the bus on an adapter that 2318 * cannot perform the initiator role. 2319 */ 2320 if (request_ccb != NULL) { 2321 request_ccb->ccb_h.status = CAM_REQ_CMP; 2322 xpt_done(request_ccb); 2323 } 2324 return; 2325 } 2326 2327 if (request_ccb == NULL) { 2328 request_ccb = xpt_alloc_ccb_nowait(); 2329 if (request_ccb == NULL) { 2330 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2331 "can't continue\n"); 2332 return; 2333 } 2334 status = xpt_create_path(&new_path, NULL, 2335 path->bus->path_id, 2336 path->target->target_id, 2337 path->device->lun_id); 2338 if (status != CAM_REQ_CMP) { 2339 xpt_print(path, "scsi_scan_lun: can't create path, " 2340 "can't continue\n"); 2341 xpt_free_ccb(request_ccb); 2342 return; 2343 } 2344 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2345 request_ccb->ccb_h.cbfcnp = xptscandone; 2346 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2347 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2348 request_ccb->crcn.flags = flags; 2349 } 2350 2351 lock = (xpt_path_owned(path) == 0); 2352 if (lock) 2353 xpt_path_lock(path); 2354 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2355 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2356 probe_softc *softc; 2357 2358 softc = (probe_softc *)old_periph->softc; 2359 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2360 &request_ccb->ccb_h, periph_links.tqe); 2361 } else { 2362 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2363 xpt_done(request_ccb); 2364 } 2365 } else { 2366 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2367 probestart, "probe", 2368 CAM_PERIPH_BIO, 2369 request_ccb->ccb_h.path, NULL, 0, 2370 request_ccb); 2371 2372 if (status != CAM_REQ_CMP) { 2373 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2374 "returned an error, can't continue probe\n"); 2375 request_ccb->ccb_h.status = status; 2376 xpt_done(request_ccb); 2377 } 2378 } 2379 if (lock) 2380 xpt_path_unlock(path); 2381 } 2382 2383 static void 2384 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2385 { 2386 2387 xpt_free_path(done_ccb->ccb_h.path); 2388 xpt_free_ccb(done_ccb); 2389 } 2390 2391 static struct cam_ed * 2392 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2393 { 2394 struct scsi_quirk_entry *quirk; 2395 struct cam_ed *device; 2396 2397 device = xpt_alloc_device(bus, target, lun_id); 2398 if (device == NULL) 2399 return (NULL); 2400 2401 /* 2402 * Take the default quirk entry until we have inquiry 2403 * data and can determine a better quirk to use. 2404 */ 2405 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2406 device->quirk = (void *)quirk; 2407 device->mintags = quirk->mintags; 2408 device->maxtags = quirk->maxtags; 2409 bzero(&device->inq_data, sizeof(device->inq_data)); 2410 device->inq_flags = 0; 2411 device->queue_flags = 0; 2412 device->serial_num = NULL; 2413 device->serial_num_len = 0; 2414 device->device_id = NULL; 2415 device->device_id_len = 0; 2416 device->supported_vpds = NULL; 2417 device->supported_vpds_len = 0; 2418 return (device); 2419 } 2420 2421 static void 2422 scsi_devise_transport(struct cam_path *path) 2423 { 2424 struct ccb_pathinq cpi; 2425 struct ccb_trans_settings cts; 2426 struct scsi_inquiry_data *inq_buf; 2427 2428 /* Get transport information from the SIM */ 2429 memset(&cpi, 0, sizeof(cpi)); 2430 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2431 cpi.ccb_h.func_code = XPT_PATH_INQ; 2432 xpt_action((union ccb *)&cpi); 2433 2434 inq_buf = NULL; 2435 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2436 inq_buf = &path->device->inq_data; 2437 path->device->protocol = PROTO_SCSI; 2438 path->device->protocol_version = 2439 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2440 path->device->transport = cpi.transport; 2441 path->device->transport_version = cpi.transport_version; 2442 2443 /* 2444 * Any device not using SPI3 features should 2445 * be considered SPI2 or lower. 2446 */ 2447 if (inq_buf != NULL) { 2448 if (path->device->transport == XPORT_SPI 2449 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2450 && path->device->transport_version > 2) 2451 path->device->transport_version = 2; 2452 } else { 2453 struct cam_ed* otherdev; 2454 2455 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2456 otherdev != NULL; 2457 otherdev = TAILQ_NEXT(otherdev, links)) { 2458 if (otherdev != path->device) 2459 break; 2460 } 2461 2462 if (otherdev != NULL) { 2463 /* 2464 * Initially assume the same versioning as 2465 * prior luns for this target. 2466 */ 2467 path->device->protocol_version = 2468 otherdev->protocol_version; 2469 path->device->transport_version = 2470 otherdev->transport_version; 2471 } else { 2472 /* Until we know better, opt for safety */ 2473 path->device->protocol_version = 2; 2474 if (path->device->transport == XPORT_SPI) 2475 path->device->transport_version = 2; 2476 else 2477 path->device->transport_version = 0; 2478 } 2479 } 2480 2481 /* 2482 * XXX 2483 * For a device compliant with SPC-2 we should be able 2484 * to determine the transport version supported by 2485 * scrutinizing the version descriptors in the 2486 * inquiry buffer. 2487 */ 2488 2489 /* Tell the controller what we think */ 2490 memset(&cts, 0, sizeof(cts)); 2491 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2492 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2493 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2494 cts.transport = path->device->transport; 2495 cts.transport_version = path->device->transport_version; 2496 cts.protocol = path->device->protocol; 2497 cts.protocol_version = path->device->protocol_version; 2498 cts.proto_specific.valid = 0; 2499 cts.xport_specific.valid = 0; 2500 xpt_action((union ccb *)&cts); 2501 } 2502 2503 static void 2504 scsi_dev_advinfo(union ccb *start_ccb) 2505 { 2506 struct cam_ed *device; 2507 struct ccb_dev_advinfo *cdai; 2508 off_t amt; 2509 2510 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2511 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2512 device = start_ccb->ccb_h.path->device; 2513 cdai = &start_ccb->cdai; 2514 switch(cdai->buftype) { 2515 case CDAI_TYPE_SCSI_DEVID: 2516 if (cdai->flags & CDAI_FLAG_STORE) 2517 return; 2518 cdai->provsiz = device->device_id_len; 2519 if (device->device_id_len == 0) 2520 break; 2521 amt = device->device_id_len; 2522 if (cdai->provsiz > cdai->bufsiz) 2523 amt = cdai->bufsiz; 2524 memcpy(cdai->buf, device->device_id, amt); 2525 break; 2526 case CDAI_TYPE_SERIAL_NUM: 2527 if (cdai->flags & CDAI_FLAG_STORE) 2528 return; 2529 cdai->provsiz = device->serial_num_len; 2530 if (device->serial_num_len == 0) 2531 break; 2532 amt = device->serial_num_len; 2533 if (cdai->provsiz > cdai->bufsiz) 2534 amt = cdai->bufsiz; 2535 memcpy(cdai->buf, device->serial_num, amt); 2536 break; 2537 case CDAI_TYPE_PHYS_PATH: 2538 if (cdai->flags & CDAI_FLAG_STORE) { 2539 if (device->physpath != NULL) { 2540 free(device->physpath, M_CAMXPT); 2541 device->physpath = NULL; 2542 device->physpath_len = 0; 2543 } 2544 /* Clear existing buffer if zero length */ 2545 if (cdai->bufsiz == 0) 2546 break; 2547 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2548 if (device->physpath == NULL) { 2549 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2550 return; 2551 } 2552 device->physpath_len = cdai->bufsiz; 2553 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2554 } else { 2555 cdai->provsiz = device->physpath_len; 2556 if (device->physpath_len == 0) 2557 break; 2558 amt = device->physpath_len; 2559 if (cdai->provsiz > cdai->bufsiz) 2560 amt = cdai->bufsiz; 2561 memcpy(cdai->buf, device->physpath, amt); 2562 } 2563 break; 2564 case CDAI_TYPE_RCAPLONG: 2565 if (cdai->flags & CDAI_FLAG_STORE) { 2566 if (device->rcap_buf != NULL) { 2567 free(device->rcap_buf, M_CAMXPT); 2568 device->rcap_buf = NULL; 2569 } 2570 2571 device->rcap_len = cdai->bufsiz; 2572 /* Clear existing buffer if zero length */ 2573 if (cdai->bufsiz == 0) 2574 break; 2575 2576 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2577 M_NOWAIT); 2578 if (device->rcap_buf == NULL) { 2579 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2580 return; 2581 } 2582 2583 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2584 } else { 2585 cdai->provsiz = device->rcap_len; 2586 if (device->rcap_len == 0) 2587 break; 2588 amt = device->rcap_len; 2589 if (cdai->provsiz > cdai->bufsiz) 2590 amt = cdai->bufsiz; 2591 memcpy(cdai->buf, device->rcap_buf, amt); 2592 } 2593 break; 2594 case CDAI_TYPE_EXT_INQ: 2595 /* 2596 * We fetch extended inquiry data during probe, if 2597 * available. We don't allow changing it. 2598 */ 2599 if (cdai->flags & CDAI_FLAG_STORE) 2600 return; 2601 cdai->provsiz = device->ext_inq_len; 2602 if (device->ext_inq_len == 0) 2603 break; 2604 amt = device->ext_inq_len; 2605 if (cdai->provsiz > cdai->bufsiz) 2606 amt = cdai->bufsiz; 2607 memcpy(cdai->buf, device->ext_inq, amt); 2608 break; 2609 default: 2610 return; 2611 } 2612 start_ccb->ccb_h.status = CAM_REQ_CMP; 2613 2614 if (cdai->flags & CDAI_FLAG_STORE) { 2615 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2616 (void *)(uintptr_t)cdai->buftype); 2617 } 2618 } 2619 2620 static void 2621 scsi_action(union ccb *start_ccb) 2622 { 2623 2624 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2625 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2626 ("%s: ccb %p, func_code %#x should not be allocated " 2627 "from UMA zone\n", 2628 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2629 } 2630 2631 switch (start_ccb->ccb_h.func_code) { 2632 case XPT_SET_TRAN_SETTINGS: 2633 { 2634 scsi_set_transfer_settings(&start_ccb->cts, 2635 start_ccb->ccb_h.path, 2636 /*async_update*/FALSE); 2637 break; 2638 } 2639 case XPT_SCAN_BUS: 2640 case XPT_SCAN_TGT: 2641 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2642 break; 2643 case XPT_SCAN_LUN: 2644 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2645 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2646 start_ccb); 2647 break; 2648 case XPT_DEV_ADVINFO: 2649 { 2650 scsi_dev_advinfo(start_ccb); 2651 break; 2652 } 2653 default: 2654 xpt_action_default(start_ccb); 2655 break; 2656 } 2657 } 2658 2659 static void 2660 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2661 int async_update) 2662 { 2663 struct ccb_pathinq cpi; 2664 struct ccb_trans_settings cur_cts; 2665 struct ccb_trans_settings_scsi *scsi; 2666 struct ccb_trans_settings_scsi *cur_scsi; 2667 struct scsi_inquiry_data *inq_data; 2668 struct cam_ed *device; 2669 2670 if (path == NULL || (device = path->device) == NULL) { 2671 cts->ccb_h.status = CAM_PATH_INVALID; 2672 xpt_done((union ccb *)cts); 2673 return; 2674 } 2675 2676 if (cts->protocol == PROTO_UNKNOWN 2677 || cts->protocol == PROTO_UNSPECIFIED) { 2678 cts->protocol = device->protocol; 2679 cts->protocol_version = device->protocol_version; 2680 } 2681 2682 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2683 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2684 cts->protocol_version = device->protocol_version; 2685 2686 if (cts->protocol != device->protocol) { 2687 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2688 cts->protocol, device->protocol); 2689 cts->protocol = device->protocol; 2690 } 2691 2692 if (cts->protocol_version > device->protocol_version) { 2693 if (bootverbose) { 2694 xpt_print(path, "Down reving Protocol " 2695 "Version from %d to %d?\n", cts->protocol_version, 2696 device->protocol_version); 2697 } 2698 cts->protocol_version = device->protocol_version; 2699 } 2700 2701 if (cts->transport == XPORT_UNKNOWN 2702 || cts->transport == XPORT_UNSPECIFIED) { 2703 cts->transport = device->transport; 2704 cts->transport_version = device->transport_version; 2705 } 2706 2707 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2708 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2709 cts->transport_version = device->transport_version; 2710 2711 if (cts->transport != device->transport) { 2712 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2713 cts->transport, device->transport); 2714 cts->transport = device->transport; 2715 } 2716 2717 if (cts->transport_version > device->transport_version) { 2718 if (bootverbose) { 2719 xpt_print(path, "Down reving Transport " 2720 "Version from %d to %d?\n", cts->transport_version, 2721 device->transport_version); 2722 } 2723 cts->transport_version = device->transport_version; 2724 } 2725 2726 /* 2727 * Nothing more of interest to do unless 2728 * this is a device connected via the 2729 * SCSI protocol. 2730 */ 2731 if (cts->protocol != PROTO_SCSI) { 2732 if (async_update == FALSE) 2733 xpt_action_default((union ccb *)cts); 2734 return; 2735 } 2736 2737 inq_data = &device->inq_data; 2738 scsi = &cts->proto_specific.scsi; 2739 memset(&cpi, 0, sizeof(cpi)); 2740 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2741 cpi.ccb_h.func_code = XPT_PATH_INQ; 2742 xpt_action((union ccb *)&cpi); 2743 2744 /* SCSI specific sanity checking */ 2745 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2746 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2747 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2748 || (device->mintags == 0)) { 2749 /* 2750 * Can't tag on hardware that doesn't support tags, 2751 * doesn't have it enabled, or has broken tag support. 2752 */ 2753 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2754 } 2755 2756 if (async_update == FALSE) { 2757 /* 2758 * Perform sanity checking against what the 2759 * controller and device can do. 2760 */ 2761 memset(&cur_cts, 0, sizeof(cur_cts)); 2762 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2763 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2764 cur_cts.type = cts->type; 2765 xpt_action((union ccb *)&cur_cts); 2766 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2767 return; 2768 } 2769 cur_scsi = &cur_cts.proto_specific.scsi; 2770 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2771 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2772 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2773 } 2774 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2775 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2776 } 2777 2778 /* SPI specific sanity checking */ 2779 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2780 u_int spi3caps; 2781 struct ccb_trans_settings_spi *spi; 2782 struct ccb_trans_settings_spi *cur_spi; 2783 2784 spi = &cts->xport_specific.spi; 2785 2786 cur_spi = &cur_cts.xport_specific.spi; 2787 2788 /* Fill in any gaps in what the user gave us */ 2789 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2790 spi->sync_period = cur_spi->sync_period; 2791 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2792 spi->sync_period = 0; 2793 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2794 spi->sync_offset = cur_spi->sync_offset; 2795 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2796 spi->sync_offset = 0; 2797 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2798 spi->ppr_options = cur_spi->ppr_options; 2799 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2800 spi->ppr_options = 0; 2801 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2802 spi->bus_width = cur_spi->bus_width; 2803 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2804 spi->bus_width = 0; 2805 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2806 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2807 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2808 } 2809 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2810 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2811 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2812 && (inq_data->flags & SID_Sync) == 0 2813 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2814 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2815 /* Force async */ 2816 spi->sync_period = 0; 2817 spi->sync_offset = 0; 2818 } 2819 2820 switch (spi->bus_width) { 2821 case MSG_EXT_WDTR_BUS_32_BIT: 2822 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2823 || (inq_data->flags & SID_WBus32) != 0 2824 || cts->type == CTS_TYPE_USER_SETTINGS) 2825 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2826 break; 2827 /* Fall Through to 16-bit */ 2828 case MSG_EXT_WDTR_BUS_16_BIT: 2829 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2830 || (inq_data->flags & SID_WBus16) != 0 2831 || cts->type == CTS_TYPE_USER_SETTINGS) 2832 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2833 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2834 break; 2835 } 2836 /* Fall Through to 8-bit */ 2837 default: /* New bus width?? */ 2838 case MSG_EXT_WDTR_BUS_8_BIT: 2839 /* All targets can do this */ 2840 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2841 break; 2842 } 2843 2844 spi3caps = cpi.xport_specific.spi.ppr_options; 2845 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2846 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2847 spi3caps &= inq_data->spi3data; 2848 2849 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2850 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2851 2852 if ((spi3caps & SID_SPI_IUS) == 0) 2853 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2854 2855 if ((spi3caps & SID_SPI_QAS) == 0) 2856 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2857 2858 /* No SPI Transfer settings are allowed unless we are wide */ 2859 if (spi->bus_width == 0) 2860 spi->ppr_options = 0; 2861 2862 if ((spi->valid & CTS_SPI_VALID_DISC) 2863 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2864 /* 2865 * Can't tag queue without disconnection. 2866 */ 2867 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2868 scsi->valid |= CTS_SCSI_VALID_TQ; 2869 } 2870 2871 /* 2872 * If we are currently performing tagged transactions to 2873 * this device and want to change its negotiation parameters, 2874 * go non-tagged for a bit to give the controller a chance to 2875 * negotiate unhampered by tag messages. 2876 */ 2877 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2878 && (device->inq_flags & SID_CmdQue) != 0 2879 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2880 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2881 CTS_SPI_VALID_SYNC_OFFSET| 2882 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2883 scsi_toggle_tags(path); 2884 } 2885 2886 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2887 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2888 int device_tagenb; 2889 2890 /* 2891 * If we are transitioning from tags to no-tags or 2892 * vice-versa, we need to carefully freeze and restart 2893 * the queue so that we don't overlap tagged and non-tagged 2894 * commands. We also temporarily stop tags if there is 2895 * a change in transfer negotiation settings to allow 2896 * "tag-less" negotiation. 2897 */ 2898 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2899 || (device->inq_flags & SID_CmdQue) != 0) 2900 device_tagenb = TRUE; 2901 else 2902 device_tagenb = FALSE; 2903 2904 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2905 && device_tagenb == FALSE) 2906 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2907 && device_tagenb == TRUE)) { 2908 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2909 /* 2910 * Delay change to use tags until after a 2911 * few commands have gone to this device so 2912 * the controller has time to perform transfer 2913 * negotiations without tagged messages getting 2914 * in the way. 2915 */ 2916 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2917 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2918 } else { 2919 xpt_stop_tags(path); 2920 } 2921 } 2922 } 2923 if (async_update == FALSE) 2924 xpt_action_default((union ccb *)cts); 2925 } 2926 2927 static void 2928 scsi_toggle_tags(struct cam_path *path) 2929 { 2930 struct cam_ed *dev; 2931 2932 /* 2933 * Give controllers a chance to renegotiate 2934 * before starting tag operations. We 2935 * "toggle" tagged queuing off then on 2936 * which causes the tag enable command delay 2937 * counter to come into effect. 2938 */ 2939 dev = path->device; 2940 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2941 || ((dev->inq_flags & SID_CmdQue) != 0 2942 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2943 struct ccb_trans_settings cts; 2944 2945 memset(&cts, 0, sizeof(cts)); 2946 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2947 cts.protocol = PROTO_SCSI; 2948 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2949 cts.transport = XPORT_UNSPECIFIED; 2950 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2951 cts.proto_specific.scsi.flags = 0; 2952 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2953 scsi_set_transfer_settings(&cts, path, 2954 /*async_update*/TRUE); 2955 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2956 scsi_set_transfer_settings(&cts, path, 2957 /*async_update*/TRUE); 2958 } 2959 } 2960 2961 /* 2962 * Handle any per-device event notifications that require action by the XPT. 2963 */ 2964 static void 2965 scsi_dev_async(uint32_t async_code, struct cam_eb *bus, struct cam_et *target, 2966 struct cam_ed *device, void *async_arg) 2967 { 2968 cam_status status; 2969 struct cam_path newpath; 2970 2971 /* 2972 * We only need to handle events for real devices. 2973 */ 2974 if (target->target_id == CAM_TARGET_WILDCARD 2975 || device->lun_id == CAM_LUN_WILDCARD) 2976 return; 2977 2978 /* 2979 * We need our own path with wildcards expanded to 2980 * handle certain types of events. 2981 */ 2982 if ((async_code == AC_SENT_BDR) 2983 || (async_code == AC_BUS_RESET) 2984 || (async_code == AC_INQ_CHANGED)) 2985 status = xpt_compile_path(&newpath, NULL, 2986 bus->path_id, 2987 target->target_id, 2988 device->lun_id); 2989 else 2990 status = CAM_REQ_CMP_ERR; 2991 2992 if (status == CAM_REQ_CMP) { 2993 /* 2994 * Allow transfer negotiation to occur in a 2995 * tag free environment and after settle delay. 2996 */ 2997 if (async_code == AC_SENT_BDR 2998 || async_code == AC_BUS_RESET) { 2999 cam_freeze_devq(&newpath); 3000 cam_release_devq(&newpath, 3001 RELSIM_RELEASE_AFTER_TIMEOUT, 3002 /*reduction*/0, 3003 /*timeout*/scsi_delay, 3004 /*getcount_only*/0); 3005 scsi_toggle_tags(&newpath); 3006 } 3007 3008 if (async_code == AC_INQ_CHANGED) { 3009 /* 3010 * We've sent a start unit command, or 3011 * something similar to a device that 3012 * may have caused its inquiry data to 3013 * change. So we re-scan the device to 3014 * refresh the inquiry data for it. 3015 */ 3016 scsi_scan_lun(newpath.periph, &newpath, 3017 CAM_EXPECT_INQ_CHANGE, NULL); 3018 } 3019 xpt_release_path(&newpath); 3020 } else if (async_code == AC_LOST_DEVICE && 3021 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3022 device->flags |= CAM_DEV_UNCONFIGURED; 3023 xpt_release_device(device); 3024 } else if (async_code == AC_TRANSFER_NEG) { 3025 struct ccb_trans_settings *settings; 3026 struct cam_path path; 3027 3028 settings = (struct ccb_trans_settings *)async_arg; 3029 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3030 device->lun_id); 3031 scsi_set_transfer_settings(settings, &path, 3032 /*async_update*/TRUE); 3033 xpt_release_path(&path); 3034 } 3035 } 3036 3037 static void 3038 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3039 { 3040 struct ccb_pathinq cpi; 3041 struct cam_path *path = periph->path; 3042 3043 cam_periph_assert(periph, MA_OWNED); 3044 3045 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3046 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3047 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3048 xpt_action((union ccb*)cts); 3049 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3050 return; 3051 3052 /* Ask the SIM for its base transfer speed */ 3053 memset(&cpi, 0, sizeof(cpi)); 3054 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3055 cpi.ccb_h.func_code = XPT_PATH_INQ; 3056 xpt_action((union ccb *)&cpi); 3057 3058 /* Report connection speed */ 3059 *speed = cpi.base_transfer_speed; 3060 *freq = 0; 3061 3062 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3063 struct ccb_trans_settings_spi *spi = 3064 &cts->xport_specific.spi; 3065 3066 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3067 && spi->sync_offset != 0) { 3068 *freq = scsi_calc_syncsrate(spi->sync_period); 3069 *speed = *freq; 3070 } 3071 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3072 *speed *= (0x01 << spi->bus_width); 3073 } 3074 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3075 struct ccb_trans_settings_fc *fc = 3076 &cts->xport_specific.fc; 3077 3078 if (fc->valid & CTS_FC_VALID_SPEED) 3079 *speed = fc->bitrate; 3080 } 3081 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3082 struct ccb_trans_settings_sas *sas = 3083 &cts->xport_specific.sas; 3084 3085 if (sas->valid & CTS_SAS_VALID_SPEED) 3086 *speed = sas->bitrate; 3087 } 3088 } 3089 3090 static void 3091 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3092 { 3093 struct ccb_trans_settings cts; 3094 u_int speed, freq, mb; 3095 3096 memset(&cts, 0, sizeof(cts)); 3097 _scsi_announce_periph(periph, &speed, &freq, &cts); 3098 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3099 return; 3100 3101 mb = speed / 1000; 3102 if (mb > 0) 3103 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3104 periph->periph_name, periph->unit_number, 3105 mb, speed % 1000); 3106 else 3107 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3108 periph->unit_number, speed); 3109 /* Report additional information about SPI connections */ 3110 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3111 struct ccb_trans_settings_spi *spi; 3112 3113 spi = &cts.xport_specific.spi; 3114 if (freq != 0) { 3115 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3116 freq % 1000, 3117 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3118 ? " DT" : "", 3119 spi->sync_offset); 3120 } 3121 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3122 && spi->bus_width > 0) { 3123 if (freq != 0) { 3124 sbuf_printf(sb, ", "); 3125 } else { 3126 sbuf_printf(sb, " ("); 3127 } 3128 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3129 } else if (freq != 0) { 3130 sbuf_printf(sb, ")"); 3131 } 3132 } 3133 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3134 struct ccb_trans_settings_fc *fc; 3135 3136 fc = &cts.xport_specific.fc; 3137 if (fc->valid & CTS_FC_VALID_WWNN) 3138 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3139 if (fc->valid & CTS_FC_VALID_WWPN) 3140 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3141 if (fc->valid & CTS_FC_VALID_PORT) 3142 sbuf_printf(sb, " PortID 0x%x", fc->port); 3143 } 3144 sbuf_printf(sb, "\n"); 3145 } 3146 3147 static void 3148 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3149 { 3150 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3151 } 3152 3153 static void 3154 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3155 { 3156 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3157 } 3158 3159 static void 3160 scsi_proto_debug_out(union ccb *ccb) 3161 { 3162 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3163 struct cam_ed *device; 3164 3165 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3166 return; 3167 3168 device = ccb->ccb_h.path->device; 3169 CAM_DEBUG(ccb->ccb_h.path, 3170 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3171 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3172 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3173 } 3174