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