1 /*- 2 * Implementation of the SCSI Transport 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 7 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification, immediately at the beginning of the file. 16 * 2. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/bus.h> 37 #include <sys/systm.h> 38 #include <sys/types.h> 39 #include <sys/malloc.h> 40 #include <sys/kernel.h> 41 #include <sys/time.h> 42 #include <sys/conf.h> 43 #include <sys/fcntl.h> 44 #include <sys/md5.h> 45 #include <sys/sbuf.h> 46 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/sysctl.h> 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_queue.h> 54 #include <cam/cam_periph.h> 55 #include <cam/cam_sim.h> 56 #include <cam/cam_xpt.h> 57 #include <cam/cam_xpt_sim.h> 58 #include <cam/cam_xpt_periph.h> 59 #include <cam/cam_xpt_internal.h> 60 #include <cam/cam_debug.h> 61 62 #include <cam/scsi/scsi_all.h> 63 #include <cam/scsi/scsi_message.h> 64 #include <cam/scsi/scsi_pass.h> 65 #include <machine/stdarg.h> /* for xpt_print below */ 66 #include "opt_cam.h" 67 68 struct scsi_quirk_entry { 69 struct scsi_inquiry_pattern inq_pat; 70 u_int8_t quirks; 71 #define CAM_QUIRK_NOLUNS 0x01 72 #define CAM_QUIRK_NOVPDS 0x02 73 #define CAM_QUIRK_HILUNS 0x04 74 #define CAM_QUIRK_NOHILUNS 0x08 75 #define CAM_QUIRK_NORPTLUNS 0x10 76 u_int mintags; 77 u_int maxtags; 78 }; 79 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 80 81 static int cam_srch_hi = 0; 82 SYSCTL_INT(_kern_cam, OID_AUTO, cam_srch_hi, CTLFLAG_RWTUN, 83 &cam_srch_hi, 0, "Search above LUN 7 for SCSI3 and greater devices"); 84 85 #define CAM_SCSI2_MAXLUN 8 86 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 87 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 88 RPL_LUNDATA_ATYP_PERIPH) || \ 89 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_FLAT)) 91 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 92 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 93 RPL_LUNDATA_ATYP_PERIPH) { \ 94 (lval) = (lp)->luns[(i)].lundata[1]; \ 95 } else { \ 96 (lval) = (lp)->luns[(i)].lundata[0]; \ 97 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 98 (lval) <<= 8; \ 99 (lval) |= (lp)->luns[(i)].lundata[1]; \ 100 } 101 #define CAM_GET_LUN(lp, i, lval) \ 102 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 103 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 104 105 /* 106 * If we're not quirked to search <= the first 8 luns 107 * and we are either quirked to search above lun 8, 108 * or we're > SCSI-2 and we've enabled hilun searching, 109 * or we're > SCSI-2 and the last lun was a success, 110 * we can look for luns above lun 8. 111 */ 112 #define CAN_SRCH_HI_SPARSE(dv) \ 113 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 114 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 115 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 116 117 #define CAN_SRCH_HI_DENSE(dv) \ 118 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 119 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 120 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 121 122 static periph_init_t probe_periph_init; 123 124 static struct periph_driver probe_driver = 125 { 126 probe_periph_init, "probe", 127 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 128 CAM_PERIPH_DRV_EARLY 129 }; 130 131 PERIPHDRIVER_DECLARE(probe, probe_driver); 132 133 typedef enum { 134 PROBE_TUR, 135 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 136 PROBE_FULL_INQUIRY, 137 PROBE_REPORT_LUNS, 138 PROBE_MODE_SENSE, 139 PROBE_SUPPORTED_VPD_LIST, 140 PROBE_DEVICE_ID, 141 PROBE_EXTENDED_INQUIRY, 142 PROBE_SERIAL_NUM, 143 PROBE_TUR_FOR_NEGOTIATION, 144 PROBE_INQUIRY_BASIC_DV1, 145 PROBE_INQUIRY_BASIC_DV2, 146 PROBE_DV_EXIT, 147 PROBE_DONE, 148 PROBE_INVALID 149 } probe_action; 150 151 static char *probe_action_text[] = { 152 "PROBE_TUR", 153 "PROBE_INQUIRY", 154 "PROBE_FULL_INQUIRY", 155 "PROBE_REPORT_LUNS", 156 "PROBE_MODE_SENSE", 157 "PROBE_SUPPORTED_VPD_LIST", 158 "PROBE_DEVICE_ID", 159 "PROBE_EXTENDED_INQUIRY", 160 "PROBE_SERIAL_NUM", 161 "PROBE_TUR_FOR_NEGOTIATION", 162 "PROBE_INQUIRY_BASIC_DV1", 163 "PROBE_INQUIRY_BASIC_DV2", 164 "PROBE_DV_EXIT", 165 "PROBE_DONE", 166 "PROBE_INVALID" 167 }; 168 169 #define PROBE_SET_ACTION(softc, newaction) \ 170 do { \ 171 char **text; \ 172 text = probe_action_text; \ 173 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 174 ("Probe %s to %s\n", text[(softc)->action], \ 175 text[(newaction)])); \ 176 (softc)->action = (newaction); \ 177 } while(0) 178 179 typedef enum { 180 PROBE_INQUIRY_CKSUM = 0x01, 181 PROBE_SERIAL_CKSUM = 0x02, 182 PROBE_NO_ANNOUNCE = 0x04, 183 PROBE_EXTLUN = 0x08 184 } probe_flags; 185 186 typedef struct { 187 TAILQ_HEAD(, ccb_hdr) request_ccbs; 188 probe_action action; 189 probe_flags flags; 190 MD5_CTX context; 191 u_int8_t digest[16]; 192 struct cam_periph *periph; 193 } probe_softc; 194 195 static const char quantum[] = "QUANTUM"; 196 static const char sony[] = "SONY"; 197 static const char west_digital[] = "WDIGTL"; 198 static const char samsung[] = "SAMSUNG"; 199 static const char seagate[] = "SEAGATE"; 200 static const char microp[] = "MICROP"; 201 202 static struct scsi_quirk_entry scsi_quirk_table[] = 203 { 204 { 205 /* Reports QUEUE FULL for temporary resource shortages */ 206 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 207 /*quirks*/0, /*mintags*/24, /*maxtags*/32 208 }, 209 { 210 /* Reports QUEUE FULL for temporary resource shortages */ 211 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 212 /*quirks*/0, /*mintags*/24, /*maxtags*/32 213 }, 214 { 215 /* Reports QUEUE FULL for temporary resource shortages */ 216 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 217 /*quirks*/0, /*mintags*/24, /*maxtags*/32 218 }, 219 { 220 /* Broken tagged queuing drive */ 221 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 222 /*quirks*/0, /*mintags*/0, /*maxtags*/0 223 }, 224 { 225 /* Broken tagged queuing drive */ 226 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 227 /*quirks*/0, /*mintags*/0, /*maxtags*/0 228 }, 229 { 230 /* Broken tagged queuing drive */ 231 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 232 /*quirks*/0, /*mintags*/0, /*maxtags*/0 233 }, 234 { 235 /* 236 * Unfortunately, the Quantum Atlas III has the same 237 * problem as the Atlas II drives above. 238 * Reported by: "Johan Granlund" <johan@granlund.nu> 239 * 240 * For future reference, the drive with the problem was: 241 * QUANTUM QM39100TD-SW N1B0 242 * 243 * It's possible that Quantum will fix the problem in later 244 * firmware revisions. If that happens, the quirk entry 245 * will need to be made specific to the firmware revisions 246 * with the problem. 247 * 248 */ 249 /* Reports QUEUE FULL for temporary resource shortages */ 250 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 251 /*quirks*/0, /*mintags*/24, /*maxtags*/32 252 }, 253 { 254 /* 255 * 18 Gig Atlas III, same problem as the 9G version. 256 * Reported by: Andre Albsmeier 257 * <andre.albsmeier@mchp.siemens.de> 258 * 259 * For future reference, the drive with the problem was: 260 * QUANTUM QM318000TD-S N491 261 */ 262 /* Reports QUEUE FULL for temporary resource shortages */ 263 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 264 /*quirks*/0, /*mintags*/24, /*maxtags*/32 265 }, 266 { 267 /* 268 * Broken tagged queuing drive 269 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 270 * and: Martin Renters <martin@tdc.on.ca> 271 */ 272 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 273 /*quirks*/0, /*mintags*/0, /*maxtags*/0 274 }, 275 /* 276 * The Seagate Medalist Pro drives have very poor write 277 * performance with anything more than 2 tags. 278 * 279 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 280 * Drive: <SEAGATE ST36530N 1444> 281 * 282 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 283 * Drive: <SEAGATE ST34520W 1281> 284 * 285 * No one has actually reported that the 9G version 286 * (ST39140*) of the Medalist Pro has the same problem, but 287 * we're assuming that it does because the 4G and 6.5G 288 * versions of the drive are broken. 289 */ 290 { 291 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 292 /*quirks*/0, /*mintags*/2, /*maxtags*/2 293 }, 294 { 295 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 296 /*quirks*/0, /*mintags*/2, /*maxtags*/2 297 }, 298 { 299 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 300 /*quirks*/0, /*mintags*/2, /*maxtags*/2 301 }, 302 { 303 /* 304 * Experiences command timeouts under load with a 305 * tag count higher than 55. 306 */ 307 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 308 /*quirks*/0, /*mintags*/2, /*maxtags*/55 309 }, 310 { 311 /* 312 * Slow when tagged queueing is enabled. Write performance 313 * steadily drops off with more and more concurrent 314 * transactions. Best sequential write performance with 315 * tagged queueing turned off and write caching turned on. 316 * 317 * PR: kern/10398 318 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 319 * Drive: DCAS-34330 w/ "S65A" firmware. 320 * 321 * The drive with the problem had the "S65A" firmware 322 * revision, and has also been reported (by Stephen J. 323 * Roznowski <sjr@home.net>) for a drive with the "S61A" 324 * firmware revision. 325 * 326 * Although no one has reported problems with the 2 gig 327 * version of the DCAS drive, the assumption is that it 328 * has the same problems as the 4 gig version. Therefore 329 * this quirk entries disables tagged queueing for all 330 * DCAS drives. 331 */ 332 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 333 /*quirks*/0, /*mintags*/0, /*maxtags*/0 334 }, 335 { 336 /* Broken tagged queuing drive */ 337 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 338 /*quirks*/0, /*mintags*/0, /*maxtags*/0 339 }, 340 { 341 /* Broken tagged queuing drive */ 342 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 343 /*quirks*/0, /*mintags*/0, /*maxtags*/0 344 }, 345 { 346 /* This does not support other than LUN 0 */ 347 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 348 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 349 }, 350 { 351 /* 352 * Broken tagged queuing drive. 353 * Submitted by: 354 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 355 * in PR kern/9535 356 */ 357 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 358 /*quirks*/0, /*mintags*/0, /*maxtags*/0 359 }, 360 { 361 /* 362 * Slow when tagged queueing is enabled. (1.5MB/sec versus 363 * 8MB/sec.) 364 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 365 * Best performance with these drives is achieved with 366 * tagged queueing turned off, and write caching turned on. 367 */ 368 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 369 /*quirks*/0, /*mintags*/0, /*maxtags*/0 370 }, 371 { 372 /* 373 * Slow when tagged queueing is enabled. (1.5MB/sec versus 374 * 8MB/sec.) 375 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 376 * Best performance with these drives is achieved with 377 * tagged queueing turned off, and write caching turned on. 378 */ 379 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 380 /*quirks*/0, /*mintags*/0, /*maxtags*/0 381 }, 382 { 383 /* 384 * Doesn't handle queue full condition correctly, 385 * so we need to limit maxtags to what the device 386 * can handle instead of determining this automatically. 387 */ 388 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 389 /*quirks*/0, /*mintags*/2, /*maxtags*/32 390 }, 391 { 392 /* Really only one LUN */ 393 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 394 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 395 }, 396 { 397 /* I can't believe we need a quirk for DPT volumes. */ 398 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 399 CAM_QUIRK_NOLUNS, 400 /*mintags*/0, /*maxtags*/255 401 }, 402 { 403 /* 404 * Many Sony CDROM drives don't like multi-LUN probing. 405 */ 406 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 407 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 408 }, 409 { 410 /* 411 * This drive doesn't like multiple LUN probing. 412 * Submitted by: Parag Patel <parag@cgt.com> 413 */ 414 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 415 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 416 }, 417 { 418 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 419 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 420 }, 421 { 422 /* 423 * The 8200 doesn't like multi-lun probing, and probably 424 * don't like serial number requests either. 425 */ 426 { 427 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 428 "EXB-8200*", "*" 429 }, 430 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 431 }, 432 { 433 /* 434 * Let's try the same as above, but for a drive that says 435 * it's an IPL-6860 but is actually an EXB 8200. 436 */ 437 { 438 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 439 "IPL-6860*", "*" 440 }, 441 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 442 }, 443 { 444 /* 445 * These Hitachi drives don't like multi-lun probing. 446 * The PR submitter has a DK319H, but says that the Linux 447 * kernel has a similar work-around for the DK312 and DK314, 448 * so all DK31* drives are quirked here. 449 * PR: misc/18793 450 * Submitted by: Paul Haddad <paul@pth.com> 451 */ 452 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 453 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 454 }, 455 { 456 /* 457 * The Hitachi CJ series with J8A8 firmware apparently has 458 * problems with tagged commands. 459 * PR: 23536 460 * Reported by: amagai@nue.org 461 */ 462 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 463 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 464 }, 465 { 466 /* 467 * These are the large storage arrays. 468 * Submitted by: William Carrel <william.carrel@infospace.com> 469 */ 470 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 471 CAM_QUIRK_HILUNS, 2, 1024 472 }, 473 { 474 /* 475 * This old revision of the TDC3600 is also SCSI-1, and 476 * hangs upon serial number probing. 477 */ 478 { 479 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 480 " TDC 3600", "U07:" 481 }, 482 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 483 }, 484 { 485 /* 486 * Would repond to all LUNs if asked for. 487 */ 488 { 489 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 490 "CP150", "*" 491 }, 492 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 493 }, 494 { 495 /* 496 * Would repond to all LUNs if asked for. 497 */ 498 { 499 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 500 "96X2*", "*" 501 }, 502 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 503 }, 504 { 505 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 506 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 507 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 508 }, 509 { 510 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 511 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 512 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 513 }, 514 { 515 /* TeraSolutions special settings for TRC-22 RAID */ 516 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 517 /*quirks*/0, /*mintags*/55, /*maxtags*/255 518 }, 519 { 520 /* Veritas Storage Appliance */ 521 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 522 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 523 }, 524 { 525 /* 526 * Would respond to all LUNs. Device type and removable 527 * flag are jumper-selectable. 528 */ 529 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 530 "Tahiti 1", "*" 531 }, 532 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 533 }, 534 { 535 /* EasyRAID E5A aka. areca ARC-6010 */ 536 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 537 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 538 }, 539 { 540 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 541 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 542 }, 543 { 544 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 545 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 546 }, 547 { 548 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 549 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 550 }, 551 { 552 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 553 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 554 }, 555 { 556 /* Default tagged queuing parameters for all devices */ 557 { 558 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 559 /*vendor*/"*", /*product*/"*", /*revision*/"*" 560 }, 561 /*quirks*/0, /*mintags*/2, /*maxtags*/255 562 }, 563 }; 564 565 static cam_status proberegister(struct cam_periph *periph, 566 void *arg); 567 static void probeschedule(struct cam_periph *probe_periph); 568 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 569 static void proberequestdefaultnegotiation(struct cam_periph *periph); 570 static int proberequestbackoff(struct cam_periph *periph, 571 struct cam_ed *device); 572 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 573 static void probe_purge_old(struct cam_path *path, 574 struct scsi_report_luns_data *new, 575 probe_flags flags); 576 static void probecleanup(struct cam_periph *periph); 577 static void scsi_find_quirk(struct cam_ed *device); 578 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 579 static void scsi_scan_lun(struct cam_periph *periph, 580 struct cam_path *path, cam_flags flags, 581 union ccb *ccb); 582 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 583 static struct cam_ed * 584 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 585 lun_id_t lun_id); 586 static void scsi_devise_transport(struct cam_path *path); 587 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 588 struct cam_path *path, 589 int async_update); 590 static void scsi_toggle_tags(struct cam_path *path); 591 static void scsi_dev_async(u_int32_t async_code, 592 struct cam_eb *bus, 593 struct cam_et *target, 594 struct cam_ed *device, 595 void *async_arg); 596 static void scsi_action(union ccb *start_ccb); 597 static void scsi_announce_periph(struct cam_periph *periph); 598 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 599 static void scsi_proto_announce(struct cam_ed *device); 600 static void scsi_proto_announce_sbuf(struct cam_ed *device, 601 struct sbuf *sb); 602 static void scsi_proto_denounce(struct cam_ed *device); 603 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 604 struct sbuf *sb); 605 static void scsi_proto_debug_out(union ccb *ccb); 606 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 607 608 static struct xpt_xport_ops scsi_xport_ops = { 609 .alloc_device = scsi_alloc_device, 610 .action = scsi_action, 611 .async = scsi_dev_async, 612 .announce = scsi_announce_periph, 613 .announce_sbuf = scsi_announce_periph_sbuf, 614 }; 615 #define SCSI_XPT_XPORT(x, X) \ 616 static struct xpt_xport scsi_xport_ ## x = { \ 617 .xport = XPORT_ ## X, \ 618 .name = #x, \ 619 .ops = &scsi_xport_ops, \ 620 }; \ 621 CAM_XPT_XPORT(scsi_xport_ ## x); 622 623 SCSI_XPT_XPORT(spi, SPI); 624 SCSI_XPT_XPORT(sas, SAS); 625 SCSI_XPT_XPORT(fc, FC); 626 SCSI_XPT_XPORT(usb, USB); 627 SCSI_XPT_XPORT(iscsi, ISCSI); 628 SCSI_XPT_XPORT(srp, SRP); 629 SCSI_XPT_XPORT(ppb, PPB); 630 631 #undef SCSI_XPORT_XPORT 632 633 static struct xpt_proto_ops scsi_proto_ops = { 634 .announce = scsi_proto_announce, 635 .announce_sbuf = scsi_proto_announce_sbuf, 636 .denounce = scsi_proto_denounce, 637 .denounce_sbuf = scsi_proto_denounce_sbuf, 638 .debug_out = scsi_proto_debug_out, 639 }; 640 static struct xpt_proto scsi_proto = { 641 .proto = PROTO_SCSI, 642 .name = "scsi", 643 .ops = &scsi_proto_ops, 644 }; 645 CAM_XPT_PROTO(scsi_proto); 646 647 static void 648 probe_periph_init(void) 649 { 650 } 651 652 static cam_status 653 proberegister(struct cam_periph *periph, void *arg) 654 { 655 union ccb *request_ccb; /* CCB representing the probe request */ 656 probe_softc *softc; 657 658 request_ccb = (union ccb *)arg; 659 if (request_ccb == NULL) { 660 printf("proberegister: no probe CCB, " 661 "can't register device\n"); 662 return(CAM_REQ_CMP_ERR); 663 } 664 665 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 666 667 if (softc == NULL) { 668 printf("proberegister: Unable to probe new device. " 669 "Unable to allocate softc\n"); 670 return(CAM_REQ_CMP_ERR); 671 } 672 TAILQ_INIT(&softc->request_ccbs); 673 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 674 periph_links.tqe); 675 softc->flags = 0; 676 periph->softc = softc; 677 softc->periph = periph; 678 softc->action = PROBE_INVALID; 679 if (cam_periph_acquire(periph) != 0) 680 return (CAM_REQ_CMP_ERR); 681 682 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 683 scsi_devise_transport(periph->path); 684 685 /* 686 * Ensure we've waited at least a bus settle 687 * delay before attempting to probe the device. 688 * For HBAs that don't do bus resets, this won't make a difference. 689 */ 690 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 691 scsi_delay); 692 probeschedule(periph); 693 return(CAM_REQ_CMP); 694 } 695 696 static void 697 probeschedule(struct cam_periph *periph) 698 { 699 struct ccb_pathinq cpi; 700 union ccb *ccb; 701 probe_softc *softc; 702 703 softc = (probe_softc *)periph->softc; 704 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 705 706 xpt_path_inq(&cpi, periph->path); 707 708 /* 709 * If a device has gone away and another device, or the same one, 710 * is back in the same place, it should have a unit attention 711 * condition pending. It will not report the unit attention in 712 * response to an inquiry, which may leave invalid transfer 713 * negotiations in effect. The TUR will reveal the unit attention 714 * condition. Only send the TUR for lun 0, since some devices 715 * will get confused by commands other than inquiry to non-existent 716 * luns. If you think a device has gone away start your scan from 717 * lun 0. This will insure that any bogus transfer settings are 718 * invalidated. 719 * 720 * If we haven't seen the device before and the controller supports 721 * some kind of transfer negotiation, negotiate with the first 722 * sent command if no bus reset was performed at startup. This 723 * ensures that the device is not confused by transfer negotiation 724 * settings left over by loader or BIOS action. 725 */ 726 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 727 && (ccb->ccb_h.target_lun == 0)) { 728 PROBE_SET_ACTION(softc, PROBE_TUR); 729 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 730 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 731 proberequestdefaultnegotiation(periph); 732 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 733 } else { 734 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 735 } 736 737 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 738 softc->flags |= PROBE_NO_ANNOUNCE; 739 else 740 softc->flags &= ~PROBE_NO_ANNOUNCE; 741 742 if (cpi.hba_misc & PIM_EXTLUNS) 743 softc->flags |= PROBE_EXTLUN; 744 else 745 softc->flags &= ~PROBE_EXTLUN; 746 747 xpt_schedule(periph, CAM_PRIORITY_XPT); 748 } 749 750 static void 751 probestart(struct cam_periph *periph, union ccb *start_ccb) 752 { 753 /* Probe the device that our peripheral driver points to */ 754 struct ccb_scsiio *csio; 755 probe_softc *softc; 756 757 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 758 759 softc = (probe_softc *)periph->softc; 760 csio = &start_ccb->csio; 761 again: 762 763 switch (softc->action) { 764 case PROBE_TUR: 765 case PROBE_TUR_FOR_NEGOTIATION: 766 case PROBE_DV_EXIT: 767 { 768 scsi_test_unit_ready(csio, 769 /*retries*/4, 770 probedone, 771 MSG_SIMPLE_Q_TAG, 772 SSD_FULL_SIZE, 773 /*timeout*/60000); 774 break; 775 } 776 case PROBE_INQUIRY: 777 case PROBE_FULL_INQUIRY: 778 case PROBE_INQUIRY_BASIC_DV1: 779 case PROBE_INQUIRY_BASIC_DV2: 780 { 781 u_int inquiry_len; 782 struct scsi_inquiry_data *inq_buf; 783 784 inq_buf = &periph->path->device->inq_data; 785 786 /* 787 * If the device is currently configured, we calculate an 788 * MD5 checksum of the inquiry data, and if the serial number 789 * length is greater than 0, add the serial number data 790 * into the checksum as well. Once the inquiry and the 791 * serial number check finish, we attempt to figure out 792 * whether we still have the same device. 793 */ 794 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 795 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 796 MD5Init(&softc->context); 797 MD5Update(&softc->context, (unsigned char *)inq_buf, 798 sizeof(struct scsi_inquiry_data)); 799 softc->flags |= PROBE_INQUIRY_CKSUM; 800 if (periph->path->device->serial_num_len > 0) { 801 MD5Update(&softc->context, 802 periph->path->device->serial_num, 803 periph->path->device->serial_num_len); 804 softc->flags |= PROBE_SERIAL_CKSUM; 805 } 806 MD5Final(softc->digest, &softc->context); 807 } 808 809 if (softc->action == PROBE_INQUIRY) 810 inquiry_len = SHORT_INQUIRY_LENGTH; 811 else 812 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 813 814 /* 815 * Some parallel SCSI devices fail to send an 816 * ignore wide residue message when dealing with 817 * odd length inquiry requests. Round up to be 818 * safe. 819 */ 820 inquiry_len = roundup2(inquiry_len, 2); 821 822 if (softc->action == PROBE_INQUIRY_BASIC_DV1 823 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 824 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 825 } 826 if (inq_buf == NULL) { 827 xpt_print(periph->path, "malloc failure- skipping Basic" 828 "Domain Validation\n"); 829 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 830 scsi_test_unit_ready(csio, 831 /*retries*/4, 832 probedone, 833 MSG_SIMPLE_Q_TAG, 834 SSD_FULL_SIZE, 835 /*timeout*/60000); 836 break; 837 } 838 scsi_inquiry(csio, 839 /*retries*/4, 840 probedone, 841 MSG_SIMPLE_Q_TAG, 842 (u_int8_t *)inq_buf, 843 inquiry_len, 844 /*evpd*/FALSE, 845 /*page_code*/0, 846 SSD_MIN_SIZE, 847 /*timeout*/60 * 1000); 848 break; 849 } 850 case PROBE_REPORT_LUNS: 851 { 852 void *rp; 853 854 rp = malloc(periph->path->target->rpl_size, 855 M_CAMXPT, M_NOWAIT | M_ZERO); 856 if (rp == NULL) { 857 struct scsi_inquiry_data *inq_buf; 858 inq_buf = &periph->path->device->inq_data; 859 xpt_print(periph->path, 860 "Unable to alloc report luns storage\n"); 861 if (INQ_DATA_TQ_ENABLED(inq_buf)) 862 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 863 else 864 PROBE_SET_ACTION(softc, 865 PROBE_SUPPORTED_VPD_LIST); 866 goto again; 867 } 868 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 869 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 870 SSD_FULL_SIZE, 60000); break; 871 break; 872 } 873 case PROBE_MODE_SENSE: 874 { 875 void *mode_buf; 876 int mode_buf_len; 877 878 mode_buf_len = sizeof(struct scsi_mode_header_6) 879 + sizeof(struct scsi_mode_blk_desc) 880 + sizeof(struct scsi_control_page); 881 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 882 if (mode_buf != NULL) { 883 scsi_mode_sense(csio, 884 /*retries*/4, 885 probedone, 886 MSG_SIMPLE_Q_TAG, 887 /*dbd*/FALSE, 888 SMS_PAGE_CTRL_CURRENT, 889 SMS_CONTROL_MODE_PAGE, 890 mode_buf, 891 mode_buf_len, 892 SSD_FULL_SIZE, 893 /*timeout*/60000); 894 break; 895 } 896 xpt_print(periph->path, "Unable to mode sense control page - " 897 "malloc failure\n"); 898 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 899 } 900 /* FALLTHROUGH */ 901 case PROBE_SUPPORTED_VPD_LIST: 902 { 903 struct scsi_vpd_supported_page_list *vpd_list; 904 struct cam_ed *device; 905 906 vpd_list = NULL; 907 device = periph->path->device; 908 909 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 910 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 911 M_NOWAIT | M_ZERO); 912 913 if (vpd_list != NULL) { 914 scsi_inquiry(csio, 915 /*retries*/4, 916 probedone, 917 MSG_SIMPLE_Q_TAG, 918 (u_int8_t *)vpd_list, 919 sizeof(*vpd_list), 920 /*evpd*/TRUE, 921 SVPD_SUPPORTED_PAGE_LIST, 922 SSD_MIN_SIZE, 923 /*timeout*/60 * 1000); 924 break; 925 } 926 done: 927 /* 928 * We'll have to do without, let our probedone 929 * routine finish up for us. 930 */ 931 start_ccb->csio.data_ptr = NULL; 932 cam_freeze_devq(periph->path); 933 cam_periph_doacquire(periph); 934 probedone(periph, start_ccb); 935 return; 936 } 937 case PROBE_DEVICE_ID: 938 { 939 struct scsi_vpd_device_id *devid; 940 941 devid = NULL; 942 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 943 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 944 M_NOWAIT | M_ZERO); 945 946 if (devid != NULL) { 947 scsi_inquiry(csio, 948 /*retries*/4, 949 probedone, 950 MSG_SIMPLE_Q_TAG, 951 (uint8_t *)devid, 952 SVPD_DEVICE_ID_MAX_SIZE, 953 /*evpd*/TRUE, 954 SVPD_DEVICE_ID, 955 SSD_MIN_SIZE, 956 /*timeout*/60 * 1000); 957 break; 958 } 959 goto done; 960 } 961 case PROBE_EXTENDED_INQUIRY: 962 { 963 struct scsi_vpd_extended_inquiry_data *ext_inq; 964 965 ext_inq = NULL; 966 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 967 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 968 M_NOWAIT | M_ZERO); 969 970 if (ext_inq != NULL) { 971 scsi_inquiry(csio, 972 /*retries*/4, 973 probedone, 974 MSG_SIMPLE_Q_TAG, 975 (uint8_t *)ext_inq, 976 sizeof(*ext_inq), 977 /*evpd*/TRUE, 978 SVPD_EXTENDED_INQUIRY_DATA, 979 SSD_MIN_SIZE, 980 /*timeout*/60 * 1000); 981 break; 982 } 983 /* 984 * We'll have to do without, let our probedone 985 * routine finish up for us. 986 */ 987 goto done; 988 } 989 case PROBE_SERIAL_NUM: 990 { 991 struct scsi_vpd_unit_serial_number *serial_buf; 992 struct cam_ed* device; 993 994 serial_buf = NULL; 995 device = periph->path->device; 996 if (device->serial_num != NULL) { 997 free(device->serial_num, M_CAMXPT); 998 device->serial_num = NULL; 999 device->serial_num_len = 0; 1000 } 1001 1002 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 1003 serial_buf = (struct scsi_vpd_unit_serial_number *) 1004 malloc(sizeof(*serial_buf), M_CAMXPT, 1005 M_NOWAIT|M_ZERO); 1006 1007 if (serial_buf != NULL) { 1008 scsi_inquiry(csio, 1009 /*retries*/4, 1010 probedone, 1011 MSG_SIMPLE_Q_TAG, 1012 (u_int8_t *)serial_buf, 1013 sizeof(*serial_buf), 1014 /*evpd*/TRUE, 1015 SVPD_UNIT_SERIAL_NUMBER, 1016 SSD_MIN_SIZE, 1017 /*timeout*/60 * 1000); 1018 break; 1019 } 1020 goto done; 1021 } 1022 default: 1023 panic("probestart: invalid action state 0x%x\n", softc->action); 1024 } 1025 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1026 cam_periph_doacquire(periph); 1027 xpt_action(start_ccb); 1028 } 1029 1030 static void 1031 proberequestdefaultnegotiation(struct cam_periph *periph) 1032 { 1033 struct ccb_trans_settings cts; 1034 1035 memset(&cts, 0, sizeof(cts)); 1036 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1037 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1038 cts.type = CTS_TYPE_USER_SETTINGS; 1039 xpt_action((union ccb *)&cts); 1040 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1041 return; 1042 } 1043 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1044 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1045 xpt_action((union ccb *)&cts); 1046 } 1047 1048 /* 1049 * Backoff Negotiation Code- only pertinent for SPI devices. 1050 */ 1051 static int 1052 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1053 { 1054 struct ccb_trans_settings cts; 1055 struct ccb_trans_settings_spi *spi; 1056 1057 memset(&cts, 0, sizeof (cts)); 1058 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1059 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1060 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1061 xpt_action((union ccb *)&cts); 1062 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1063 if (bootverbose) { 1064 xpt_print(periph->path, 1065 "failed to get current device settings\n"); 1066 } 1067 return (0); 1068 } 1069 if (cts.transport != XPORT_SPI) { 1070 if (bootverbose) { 1071 xpt_print(periph->path, "not SPI transport\n"); 1072 } 1073 return (0); 1074 } 1075 spi = &cts.xport_specific.spi; 1076 1077 /* 1078 * We cannot renegotiate sync rate if we don't have one. 1079 */ 1080 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1081 if (bootverbose) { 1082 xpt_print(periph->path, "no sync rate known\n"); 1083 } 1084 return (0); 1085 } 1086 1087 /* 1088 * We'll assert that we don't have to touch PPR options- the 1089 * SIM will see what we do with period and offset and adjust 1090 * the PPR options as appropriate. 1091 */ 1092 1093 /* 1094 * A sync rate with unknown or zero offset is nonsensical. 1095 * A sync period of zero means Async. 1096 */ 1097 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1098 || spi->sync_offset == 0 || spi->sync_period == 0) { 1099 if (bootverbose) { 1100 xpt_print(periph->path, "no sync rate available\n"); 1101 } 1102 return (0); 1103 } 1104 1105 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1106 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1107 ("hit async: giving up on DV\n")); 1108 return (0); 1109 } 1110 1111 /* 1112 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1113 * We don't try to remember 'last' settings to see if the SIM actually 1114 * gets into the speed we want to set. We check on the SIM telling 1115 * us that a requested speed is bad, but otherwise don't try and 1116 * check the speed due to the asynchronous and handshake nature 1117 * of speed setting. 1118 */ 1119 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1120 for (;;) { 1121 spi->sync_period++; 1122 if (spi->sync_period >= 0xf) { 1123 spi->sync_period = 0; 1124 spi->sync_offset = 0; 1125 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1126 ("setting to async for DV\n")); 1127 /* 1128 * Once we hit async, we don't want to try 1129 * any more settings. 1130 */ 1131 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1132 } else if (bootverbose) { 1133 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1134 ("DV: period 0x%x\n", spi->sync_period)); 1135 printf("setting period to 0x%x\n", spi->sync_period); 1136 } 1137 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1138 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1139 xpt_action((union ccb *)&cts); 1140 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1141 break; 1142 } 1143 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1144 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1145 if (spi->sync_period == 0) { 1146 return (0); 1147 } 1148 } 1149 return (1); 1150 } 1151 1152 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1153 1154 static void 1155 probedone(struct cam_periph *periph, union ccb *done_ccb) 1156 { 1157 probe_softc *softc; 1158 struct cam_path *path; 1159 struct scsi_inquiry_data *inq_buf; 1160 u_int32_t priority; 1161 1162 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1163 1164 softc = (probe_softc *)periph->softc; 1165 path = done_ccb->ccb_h.path; 1166 priority = done_ccb->ccb_h.pinfo.priority; 1167 cam_periph_assert(periph, MA_OWNED); 1168 1169 switch (softc->action) { 1170 case PROBE_TUR: 1171 { 1172 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1173 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1174 ERESTART) { 1175 outr: 1176 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1177 cam_release_devq(path, 0, 0, 0, FALSE); 1178 return; 1179 } 1180 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1181 /* Don't wedge the queue */ 1182 xpt_release_devq(done_ccb->ccb_h.path, 1183 /*count*/1, 1184 /*run_queue*/TRUE); 1185 } 1186 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1187 xpt_release_ccb(done_ccb); 1188 xpt_schedule(periph, priority); 1189 out: 1190 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1191 cam_release_devq(path, 0, 0, 0, FALSE); 1192 cam_periph_release_locked(periph); 1193 return; 1194 } 1195 case PROBE_INQUIRY: 1196 case PROBE_FULL_INQUIRY: 1197 { 1198 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1199 u_int8_t periph_qual; 1200 1201 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1202 scsi_find_quirk(path->device); 1203 inq_buf = &path->device->inq_data; 1204 1205 periph_qual = SID_QUAL(inq_buf); 1206 1207 if (periph_qual == SID_QUAL_LU_CONNECTED || 1208 periph_qual == SID_QUAL_LU_OFFLINE) { 1209 /* 1210 * We conservatively request only 1211 * SHORT_INQUIRY_LEN bytes of inquiry 1212 * information during our first try 1213 * at sending an INQUIRY. If the device 1214 * has more information to give, 1215 * perform a second request specifying 1216 * the amount of information the device 1217 * is willing to give. 1218 */ 1219 if (softc->action == PROBE_INQUIRY 1220 && SID_ADDITIONAL_LENGTH(inq_buf) 1221 > SHORT_INQUIRY_LENGTH) { 1222 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1223 xpt_release_ccb(done_ccb); 1224 xpt_schedule(periph, priority); 1225 goto out; 1226 } 1227 1228 scsi_devise_transport(path); 1229 1230 if (path->device->lun_id == 0 && 1231 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1232 (SCSI_QUIRK(path->device)->quirks & 1233 CAM_QUIRK_NORPTLUNS) == 0) { 1234 PROBE_SET_ACTION(softc, 1235 PROBE_REPORT_LUNS); 1236 /* 1237 * Start with room for *one* lun. 1238 */ 1239 periph->path->target->rpl_size = 16; 1240 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1241 PROBE_SET_ACTION(softc, 1242 PROBE_MODE_SENSE); 1243 else 1244 PROBE_SET_ACTION(softc, 1245 PROBE_SUPPORTED_VPD_LIST); 1246 1247 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1248 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1249 xpt_acquire_device(path->device); 1250 } 1251 xpt_release_ccb(done_ccb); 1252 xpt_schedule(periph, priority); 1253 goto out; 1254 } else if (path->device->lun_id == 0 && 1255 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1256 (SCSI_QUIRK(path->device)->quirks & 1257 CAM_QUIRK_NORPTLUNS) == 0) { 1258 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1259 periph->path->target->rpl_size = 16; 1260 xpt_release_ccb(done_ccb); 1261 xpt_schedule(periph, priority); 1262 goto out; 1263 } 1264 } else if (cam_periph_error(done_ccb, 0, 1265 done_ccb->ccb_h.target_lun > 0 1266 ? SF_RETRY_UA|SF_QUIET_IR 1267 : SF_RETRY_UA) == ERESTART) { 1268 goto outr; 1269 } else { 1270 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1271 /* Don't wedge the queue */ 1272 xpt_release_devq(done_ccb->ccb_h.path, 1273 /*count*/1, /*run_queue*/TRUE); 1274 } 1275 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1276 } 1277 /* 1278 * If we get to this point, we got an error status back 1279 * from the inquiry and the error status doesn't require 1280 * automatically retrying the command. Therefore, the 1281 * inquiry failed. If we had inquiry information before 1282 * for this device, but this latest inquiry command failed, 1283 * the device has probably gone away. If this device isn't 1284 * already marked unconfigured, notify the peripheral 1285 * drivers that this device is no more. 1286 */ 1287 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1288 /* Send the async notification. */ 1289 xpt_async(AC_LOST_DEVICE, path, NULL); 1290 PROBE_SET_ACTION(softc, PROBE_INVALID); 1291 1292 xpt_release_ccb(done_ccb); 1293 break; 1294 } 1295 case PROBE_REPORT_LUNS: 1296 { 1297 struct ccb_scsiio *csio; 1298 struct scsi_report_luns_data *lp; 1299 u_int nlun, maxlun; 1300 1301 csio = &done_ccb->csio; 1302 1303 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1304 nlun = scsi_4btoul(lp->length) / 8; 1305 maxlun = (csio->dxfer_len / 8) - 1; 1306 1307 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1308 if (cam_periph_error(done_ccb, 0, 1309 done_ccb->ccb_h.target_lun > 0 ? 1310 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1311 ERESTART) { 1312 goto outr; 1313 } 1314 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1315 xpt_release_devq(done_ccb->ccb_h.path, 1, 1316 TRUE); 1317 } 1318 free(lp, M_CAMXPT); 1319 lp = NULL; 1320 } else if (nlun > maxlun) { 1321 /* 1322 * Reallocate and retry to cover all luns 1323 */ 1324 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1325 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1326 nlun)); 1327 free(lp, M_CAMXPT); 1328 path->target->rpl_size = (nlun << 3) + 8; 1329 xpt_release_ccb(done_ccb); 1330 xpt_schedule(periph, priority); 1331 goto out; 1332 } else if (nlun == 0) { 1333 /* 1334 * If there don't appear to be any luns, bail. 1335 */ 1336 free(lp, M_CAMXPT); 1337 lp = NULL; 1338 } else { 1339 lun_id_t lun; 1340 int idx; 1341 1342 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1343 ("Probe: %u lun(s) reported\n", nlun)); 1344 1345 CAM_GET_LUN(lp, 0, lun); 1346 /* 1347 * If the first lun is not lun 0, then either there 1348 * is no lun 0 in the list, or the list is unsorted. 1349 */ 1350 if (lun != 0) { 1351 for (idx = 0; idx < nlun; idx++) { 1352 CAM_GET_LUN(lp, idx, lun); 1353 if (lun == 0) { 1354 break; 1355 } 1356 } 1357 if (idx != nlun) { 1358 uint8_t tlun[8]; 1359 memcpy(tlun, 1360 lp->luns[0].lundata, 8); 1361 memcpy(lp->luns[0].lundata, 1362 lp->luns[idx].lundata, 8); 1363 memcpy(lp->luns[idx].lundata, 1364 tlun, 8); 1365 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1366 ("lun 0 in position %u\n", idx)); 1367 } 1368 } 1369 /* 1370 * If we have an old lun list, We can either 1371 * retest luns that appear to have been dropped, 1372 * or just nuke them. We'll opt for the latter. 1373 * This function will also install the new list 1374 * in the target structure. 1375 */ 1376 probe_purge_old(path, lp, softc->flags); 1377 lp = NULL; 1378 } 1379 /* The processing above should either exit via a `goto 1380 * out` or leave the `lp` variable `NULL` and (if 1381 * applicable) `free()` the storage to which it had 1382 * pointed. Assert here that is the case. 1383 */ 1384 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1385 inq_buf = &path->device->inq_data; 1386 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1387 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1388 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1389 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1390 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1391 else 1392 PROBE_SET_ACTION(softc, 1393 PROBE_SUPPORTED_VPD_LIST); 1394 xpt_release_ccb(done_ccb); 1395 xpt_schedule(periph, priority); 1396 goto out; 1397 } 1398 PROBE_SET_ACTION(softc, PROBE_INVALID); 1399 xpt_release_ccb(done_ccb); 1400 break; 1401 } 1402 case PROBE_MODE_SENSE: 1403 { 1404 struct ccb_scsiio *csio; 1405 struct scsi_mode_header_6 *mode_hdr; 1406 1407 csio = &done_ccb->csio; 1408 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1409 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1410 struct scsi_control_page *page; 1411 u_int8_t *offset; 1412 1413 offset = ((u_int8_t *)&mode_hdr[1]) 1414 + mode_hdr->blk_desc_len; 1415 page = (struct scsi_control_page *)offset; 1416 path->device->queue_flags = page->queue_flags; 1417 } else if (cam_periph_error(done_ccb, 0, 1418 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1419 goto outr; 1420 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1421 /* Don't wedge the queue */ 1422 xpt_release_devq(done_ccb->ccb_h.path, 1423 /*count*/1, /*run_queue*/TRUE); 1424 } 1425 xpt_release_ccb(done_ccb); 1426 free(mode_hdr, M_CAMXPT); 1427 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1428 xpt_schedule(periph, priority); 1429 goto out; 1430 } 1431 case PROBE_SUPPORTED_VPD_LIST: 1432 { 1433 struct ccb_scsiio *csio; 1434 struct scsi_vpd_supported_page_list *page_list; 1435 1436 csio = &done_ccb->csio; 1437 page_list = 1438 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1439 1440 if (path->device->supported_vpds != NULL) { 1441 free(path->device->supported_vpds, M_CAMXPT); 1442 path->device->supported_vpds = NULL; 1443 path->device->supported_vpds_len = 0; 1444 } 1445 1446 if (page_list == NULL) { 1447 /* 1448 * Don't process the command as it was never sent 1449 */ 1450 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1451 /* Got vpd list */ 1452 path->device->supported_vpds_len = page_list->length + 1453 SVPD_SUPPORTED_PAGES_HDR_LEN; 1454 path->device->supported_vpds = (uint8_t *)page_list; 1455 xpt_release_ccb(done_ccb); 1456 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1457 xpt_schedule(periph, priority); 1458 goto out; 1459 } else if (cam_periph_error(done_ccb, 0, 1460 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1461 goto outr; 1462 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1463 /* Don't wedge the queue */ 1464 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1465 /*run_queue*/TRUE); 1466 } 1467 1468 if (page_list) 1469 free(page_list, M_CAMXPT); 1470 /* No VPDs available, skip to device check. */ 1471 csio->data_ptr = NULL; 1472 goto probe_device_check; 1473 } 1474 case PROBE_DEVICE_ID: 1475 { 1476 struct scsi_vpd_device_id *devid; 1477 struct ccb_scsiio *csio; 1478 uint32_t length = 0; 1479 1480 csio = &done_ccb->csio; 1481 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1482 1483 /* Clean up from previous instance of this device */ 1484 if (path->device->device_id != NULL) { 1485 path->device->device_id_len = 0; 1486 free(path->device->device_id, M_CAMXPT); 1487 path->device->device_id = NULL; 1488 } 1489 1490 if (devid == NULL) { 1491 /* Don't process the command as it was never sent */ 1492 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1493 length = scsi_2btoul(devid->length); 1494 if (length != 0) { 1495 /* 1496 * NB: device_id_len is actual response 1497 * size, not buffer size. 1498 */ 1499 path->device->device_id_len = length + 1500 SVPD_DEVICE_ID_HDR_LEN; 1501 path->device->device_id = (uint8_t *)devid; 1502 } 1503 } else if (cam_periph_error(done_ccb, 0, 1504 SF_RETRY_UA) == ERESTART) { 1505 goto outr; 1506 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1507 /* Don't wedge the queue */ 1508 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1509 /*run_queue*/TRUE); 1510 } 1511 1512 /* Free the device id space if we don't use it */ 1513 if (devid && length == 0) 1514 free(devid, M_CAMXPT); 1515 xpt_release_ccb(done_ccb); 1516 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1517 xpt_schedule(periph, priority); 1518 goto out; 1519 } 1520 case PROBE_EXTENDED_INQUIRY: { 1521 struct scsi_vpd_extended_inquiry_data *ext_inq; 1522 struct ccb_scsiio *csio; 1523 int32_t length = 0; 1524 1525 csio = &done_ccb->csio; 1526 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1527 csio->data_ptr; 1528 if (path->device->ext_inq != NULL) { 1529 path->device->ext_inq_len = 0; 1530 free(path->device->ext_inq, M_CAMXPT); 1531 path->device->ext_inq = NULL; 1532 } 1533 1534 if (ext_inq == NULL) { 1535 /* Don't process the command as it was never sent */ 1536 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1537 length = scsi_2btoul(ext_inq->page_length) + 1538 __offsetof(struct scsi_vpd_extended_inquiry_data, 1539 flags1); 1540 length = min(length, sizeof(*ext_inq)); 1541 length -= csio->resid; 1542 if (length > 0) { 1543 path->device->ext_inq_len = length; 1544 path->device->ext_inq = (uint8_t *)ext_inq; 1545 } 1546 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1547 ERESTART) { 1548 goto outr; 1549 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1550 /* Don't wedge the queue */ 1551 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1552 /*run_queue*/TRUE); 1553 } 1554 1555 /* Free the device id space if we don't use it */ 1556 if (ext_inq && length <= 0) 1557 free(ext_inq, M_CAMXPT); 1558 xpt_release_ccb(done_ccb); 1559 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1560 xpt_schedule(periph, priority); 1561 goto out; 1562 } 1563 1564 probe_device_check: 1565 case PROBE_SERIAL_NUM: 1566 { 1567 struct ccb_scsiio *csio; 1568 struct scsi_vpd_unit_serial_number *serial_buf; 1569 u_int32_t priority; 1570 int changed; 1571 int have_serialnum; 1572 1573 changed = 1; 1574 have_serialnum = 0; 1575 csio = &done_ccb->csio; 1576 priority = done_ccb->ccb_h.pinfo.priority; 1577 serial_buf = 1578 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1579 1580 if (serial_buf == NULL) { 1581 /* 1582 * Don't process the command as it was never sent 1583 */ 1584 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1585 && (serial_buf->length > 0)) { 1586 have_serialnum = 1; 1587 path->device->serial_num = 1588 (u_int8_t *)malloc((serial_buf->length + 1), 1589 M_CAMXPT, M_NOWAIT); 1590 if (path->device->serial_num != NULL) { 1591 int start, slen; 1592 1593 start = strspn(serial_buf->serial_num, " "); 1594 slen = serial_buf->length - start; 1595 if (slen <= 0) { 1596 /* 1597 * SPC5r05 says that an all-space serial 1598 * number means no product serial number 1599 * is available 1600 */ 1601 slen = 0; 1602 } 1603 memcpy(path->device->serial_num, 1604 &serial_buf->serial_num[start], slen); 1605 path->device->serial_num_len = slen; 1606 path->device->serial_num[slen] = '\0'; 1607 } 1608 } else if (cam_periph_error(done_ccb, 0, 1609 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1610 goto outr; 1611 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1612 /* Don't wedge the queue */ 1613 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1614 /*run_queue*/TRUE); 1615 } 1616 1617 /* 1618 * Let's see if we have seen this device before. 1619 */ 1620 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1621 MD5_CTX context; 1622 u_int8_t digest[16]; 1623 1624 MD5Init(&context); 1625 1626 MD5Update(&context, 1627 (unsigned char *)&path->device->inq_data, 1628 sizeof(struct scsi_inquiry_data)); 1629 1630 if (have_serialnum) 1631 MD5Update(&context, path->device->serial_num, 1632 path->device->serial_num_len); 1633 1634 MD5Final(digest, &context); 1635 if (bcmp(softc->digest, digest, 16) == 0) 1636 changed = 0; 1637 1638 /* 1639 * XXX Do we need to do a TUR in order to ensure 1640 * that the device really hasn't changed??? 1641 */ 1642 if ((changed != 0) 1643 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1644 xpt_async(AC_LOST_DEVICE, path, NULL); 1645 } 1646 if (serial_buf != NULL) 1647 free(serial_buf, M_CAMXPT); 1648 1649 if (changed != 0) { 1650 /* 1651 * Now that we have all the necessary 1652 * information to safely perform transfer 1653 * negotiations... Controllers don't perform 1654 * any negotiation or tagged queuing until 1655 * after the first XPT_SET_TRAN_SETTINGS ccb is 1656 * received. So, on a new device, just retrieve 1657 * the user settings, and set them as the current 1658 * settings to set the device up. 1659 */ 1660 proberequestdefaultnegotiation(periph); 1661 xpt_release_ccb(done_ccb); 1662 1663 /* 1664 * Perform a TUR to allow the controller to 1665 * perform any necessary transfer negotiation. 1666 */ 1667 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1668 xpt_schedule(periph, priority); 1669 goto out; 1670 } 1671 xpt_release_ccb(done_ccb); 1672 break; 1673 } 1674 case PROBE_TUR_FOR_NEGOTIATION: 1675 case PROBE_DV_EXIT: 1676 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1677 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1678 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1679 goto outr; 1680 } 1681 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1682 /* Don't wedge the queue */ 1683 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1684 /*run_queue*/TRUE); 1685 } 1686 /* 1687 * Do Domain Validation for lun 0 on devices that claim 1688 * to support Synchronous Transfer modes. 1689 */ 1690 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1691 && done_ccb->ccb_h.target_lun == 0 1692 && (path->device->inq_data.flags & SID_Sync) != 0 1693 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1694 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1695 ("Begin Domain Validation\n")); 1696 path->device->flags |= CAM_DEV_IN_DV; 1697 xpt_release_ccb(done_ccb); 1698 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1699 xpt_schedule(periph, priority); 1700 goto out; 1701 } 1702 if (softc->action == PROBE_DV_EXIT) { 1703 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1704 ("Leave Domain Validation\n")); 1705 } 1706 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1707 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1708 xpt_acquire_device(path->device); 1709 } 1710 path->device->flags &= 1711 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1712 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1713 /* Inform the XPT that a new device has been found */ 1714 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1715 xpt_action(done_ccb); 1716 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1717 done_ccb); 1718 } 1719 PROBE_SET_ACTION(softc, PROBE_DONE); 1720 xpt_release_ccb(done_ccb); 1721 break; 1722 case PROBE_INQUIRY_BASIC_DV1: 1723 case PROBE_INQUIRY_BASIC_DV2: 1724 { 1725 struct scsi_inquiry_data *nbuf; 1726 struct ccb_scsiio *csio; 1727 1728 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1729 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1730 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1731 goto outr; 1732 } 1733 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1734 /* Don't wedge the queue */ 1735 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1736 /*run_queue*/TRUE); 1737 } 1738 csio = &done_ccb->csio; 1739 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1740 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1741 xpt_print(path, 1742 "inquiry data fails comparison at DV%d step\n", 1743 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1744 if (proberequestbackoff(periph, path->device)) { 1745 path->device->flags &= ~CAM_DEV_IN_DV; 1746 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1747 } else { 1748 /* give up */ 1749 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1750 } 1751 free(nbuf, M_CAMXPT); 1752 xpt_release_ccb(done_ccb); 1753 xpt_schedule(periph, priority); 1754 goto out; 1755 } 1756 free(nbuf, M_CAMXPT); 1757 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1758 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1759 xpt_release_ccb(done_ccb); 1760 xpt_schedule(periph, priority); 1761 goto out; 1762 } 1763 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1764 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1765 ("Leave Domain Validation Successfully\n")); 1766 } 1767 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1768 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1769 xpt_acquire_device(path->device); 1770 } 1771 path->device->flags &= 1772 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1773 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1774 /* Inform the XPT that a new device has been found */ 1775 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1776 xpt_action(done_ccb); 1777 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1778 done_ccb); 1779 } 1780 PROBE_SET_ACTION(softc, PROBE_DONE); 1781 xpt_release_ccb(done_ccb); 1782 break; 1783 } 1784 default: 1785 panic("probedone: invalid action state 0x%x\n", softc->action); 1786 } 1787 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1788 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1789 done_ccb->ccb_h.status = CAM_REQ_CMP; 1790 xpt_done(done_ccb); 1791 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1792 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1793 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1794 cam_release_devq(path, 0, 0, 0, FALSE); 1795 cam_periph_release_locked(periph); 1796 cam_periph_invalidate(periph); 1797 cam_periph_release_locked(periph); 1798 } else { 1799 probeschedule(periph); 1800 goto out; 1801 } 1802 } 1803 1804 static void 1805 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1806 probe_flags flags) 1807 { 1808 struct cam_path *tp; 1809 struct scsi_report_luns_data *old; 1810 u_int idx1, idx2, nlun_old, nlun_new; 1811 lun_id_t this_lun; 1812 u_int8_t *ol, *nl; 1813 1814 if (path->target == NULL) { 1815 return; 1816 } 1817 mtx_lock(&path->target->luns_mtx); 1818 old = path->target->luns; 1819 path->target->luns = new; 1820 mtx_unlock(&path->target->luns_mtx); 1821 if (old == NULL) 1822 return; 1823 nlun_old = scsi_4btoul(old->length) / 8; 1824 nlun_new = scsi_4btoul(new->length) / 8; 1825 1826 /* 1827 * We are not going to assume sorted lists. Deal. 1828 */ 1829 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1830 ol = old->luns[idx1].lundata; 1831 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1832 nl = new->luns[idx2].lundata; 1833 if (memcmp(nl, ol, 8) == 0) { 1834 break; 1835 } 1836 } 1837 if (idx2 < nlun_new) { 1838 continue; 1839 } 1840 /* 1841 * An 'old' item not in the 'new' list. 1842 * Nuke it. Except that if it is lun 0, 1843 * that would be what the probe state 1844 * machine is currently working on, 1845 * so we won't do that. 1846 */ 1847 CAM_GET_LUN(old, idx1, this_lun); 1848 if (this_lun == 0) { 1849 continue; 1850 } 1851 1852 /* 1853 * We also cannot nuke it if it is 1854 * not in a lun format we understand 1855 * and replace the LUN with a "simple" LUN 1856 * if that is all the HBA supports. 1857 */ 1858 if (!(flags & PROBE_EXTLUN)) { 1859 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1860 continue; 1861 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1862 } 1863 1864 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1865 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1866 xpt_async(AC_LOST_DEVICE, tp, NULL); 1867 xpt_free_path(tp); 1868 } 1869 } 1870 free(old, M_CAMXPT); 1871 } 1872 1873 static void 1874 probecleanup(struct cam_periph *periph) 1875 { 1876 free(periph->softc, M_CAMXPT); 1877 } 1878 1879 static void 1880 scsi_find_quirk(struct cam_ed *device) 1881 { 1882 struct scsi_quirk_entry *quirk; 1883 caddr_t match; 1884 1885 match = cam_quirkmatch((caddr_t)&device->inq_data, 1886 (caddr_t)scsi_quirk_table, 1887 nitems(scsi_quirk_table), 1888 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1889 1890 if (match == NULL) 1891 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1892 1893 quirk = (struct scsi_quirk_entry *)match; 1894 device->quirk = quirk; 1895 device->mintags = quirk->mintags; 1896 device->maxtags = quirk->maxtags; 1897 } 1898 1899 typedef struct { 1900 union ccb *request_ccb; 1901 struct ccb_pathinq *cpi; 1902 int counter; 1903 int lunindex[0]; 1904 } scsi_scan_bus_info; 1905 1906 /* 1907 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1908 * As the scan progresses, scsi_scan_bus is used as the 1909 * callback on completion function. 1910 */ 1911 static void 1912 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1913 { 1914 struct mtx *mtx; 1915 1916 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1917 ("scsi_scan_bus\n")); 1918 switch (request_ccb->ccb_h.func_code) { 1919 case XPT_SCAN_BUS: 1920 case XPT_SCAN_TGT: 1921 { 1922 scsi_scan_bus_info *scan_info; 1923 union ccb *work_ccb, *reset_ccb; 1924 struct cam_path *path; 1925 u_int i; 1926 u_int low_target, max_target; 1927 u_int initiator_id; 1928 1929 /* Find out the characteristics of the bus */ 1930 work_ccb = xpt_alloc_ccb_nowait(); 1931 if (work_ccb == NULL) { 1932 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1933 xpt_done(request_ccb); 1934 return; 1935 } 1936 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1937 request_ccb->ccb_h.pinfo.priority); 1938 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1939 xpt_action(work_ccb); 1940 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1941 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1942 xpt_free_ccb(work_ccb); 1943 xpt_done(request_ccb); 1944 return; 1945 } 1946 1947 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1948 /* 1949 * Can't scan the bus on an adapter that 1950 * cannot perform the initiator role. 1951 */ 1952 request_ccb->ccb_h.status = CAM_REQ_CMP; 1953 xpt_free_ccb(work_ccb); 1954 xpt_done(request_ccb); 1955 return; 1956 } 1957 1958 /* We may need to reset bus first, if we haven't done it yet. */ 1959 if ((work_ccb->cpi.hba_inquiry & 1960 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1961 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1962 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1963 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1964 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1965 CAM_PRIORITY_NONE); 1966 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1967 xpt_action(reset_ccb); 1968 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1969 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1970 xpt_free_ccb(reset_ccb); 1971 xpt_free_ccb(work_ccb); 1972 xpt_done(request_ccb); 1973 return; 1974 } 1975 xpt_free_ccb(reset_ccb); 1976 } 1977 1978 /* Save some state for use while we probe for devices */ 1979 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1980 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1981 if (scan_info == NULL) { 1982 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1983 xpt_free_ccb(work_ccb); 1984 xpt_done(request_ccb); 1985 return; 1986 } 1987 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1988 ("SCAN start for %p\n", scan_info)); 1989 scan_info->request_ccb = request_ccb; 1990 scan_info->cpi = &work_ccb->cpi; 1991 1992 /* Cache on our stack so we can work asynchronously */ 1993 max_target = scan_info->cpi->max_target; 1994 low_target = 0; 1995 initiator_id = scan_info->cpi->initiator_id; 1996 1997 /* 1998 * We can scan all targets in parallel, or do it sequentially. 1999 */ 2000 2001 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2002 max_target = low_target = request_ccb->ccb_h.target_id; 2003 scan_info->counter = 0; 2004 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2005 max_target = 0; 2006 scan_info->counter = 0; 2007 } else { 2008 scan_info->counter = scan_info->cpi->max_target + 1; 2009 if (scan_info->cpi->initiator_id < scan_info->counter) { 2010 scan_info->counter--; 2011 } 2012 } 2013 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2014 mtx_unlock(mtx); 2015 2016 for (i = low_target; i <= max_target; i++) { 2017 cam_status status; 2018 if (i == initiator_id) 2019 continue; 2020 2021 status = xpt_create_path(&path, NULL, 2022 request_ccb->ccb_h.path_id, 2023 i, 0); 2024 if (status != CAM_REQ_CMP) { 2025 printf("scsi_scan_bus: xpt_create_path failed" 2026 " with status %#x, bus scan halted\n", 2027 status); 2028 free(scan_info, M_CAMXPT); 2029 request_ccb->ccb_h.status = status; 2030 xpt_free_ccb(work_ccb); 2031 xpt_done(request_ccb); 2032 break; 2033 } 2034 work_ccb = xpt_alloc_ccb_nowait(); 2035 if (work_ccb == NULL) { 2036 xpt_free_ccb((union ccb *)scan_info->cpi); 2037 free(scan_info, M_CAMXPT); 2038 xpt_free_path(path); 2039 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2040 xpt_done(request_ccb); 2041 break; 2042 } 2043 xpt_setup_ccb(&work_ccb->ccb_h, path, 2044 request_ccb->ccb_h.pinfo.priority); 2045 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2046 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2047 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2048 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2049 work_ccb->crcn.flags = request_ccb->crcn.flags; 2050 xpt_action(work_ccb); 2051 } 2052 2053 mtx_lock(mtx); 2054 break; 2055 } 2056 case XPT_SCAN_LUN: 2057 { 2058 cam_status status; 2059 struct cam_path *path, *oldpath; 2060 scsi_scan_bus_info *scan_info; 2061 struct cam_et *target; 2062 struct cam_ed *device, *nextdev; 2063 int next_target; 2064 path_id_t path_id; 2065 target_id_t target_id; 2066 lun_id_t lun_id; 2067 2068 oldpath = request_ccb->ccb_h.path; 2069 2070 status = cam_ccb_status(request_ccb); 2071 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2072 path_id = request_ccb->ccb_h.path_id; 2073 target_id = request_ccb->ccb_h.target_id; 2074 lun_id = request_ccb->ccb_h.target_lun; 2075 target = request_ccb->ccb_h.path->target; 2076 next_target = 1; 2077 2078 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2079 mtx_lock(mtx); 2080 mtx_lock(&target->luns_mtx); 2081 if (target->luns) { 2082 lun_id_t first; 2083 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2084 2085 /* 2086 * Make sure we skip over lun 0 if it's the first member 2087 * of the list as we've actually just finished probing 2088 * it. 2089 */ 2090 CAM_GET_LUN(target->luns, 0, first); 2091 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2092 scan_info->lunindex[target_id]++; 2093 } 2094 2095 /* 2096 * Skip any LUNs that the HBA can't deal with. 2097 */ 2098 while (scan_info->lunindex[target_id] < nluns) { 2099 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2100 CAM_GET_LUN(target->luns, 2101 scan_info->lunindex[target_id], 2102 lun_id); 2103 break; 2104 } 2105 2106 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2107 scan_info->lunindex[target_id])) { 2108 CAM_GET_SIMPLE_LUN(target->luns, 2109 scan_info->lunindex[target_id], 2110 lun_id); 2111 break; 2112 } 2113 2114 scan_info->lunindex[target_id]++; 2115 } 2116 2117 if (scan_info->lunindex[target_id] < nluns) { 2118 mtx_unlock(&target->luns_mtx); 2119 next_target = 0; 2120 CAM_DEBUG(request_ccb->ccb_h.path, 2121 CAM_DEBUG_PROBE, 2122 ("next lun to try at index %u is %jx\n", 2123 scan_info->lunindex[target_id], 2124 (uintmax_t)lun_id)); 2125 scan_info->lunindex[target_id]++; 2126 } else { 2127 mtx_unlock(&target->luns_mtx); 2128 /* We're done with scanning all luns. */ 2129 } 2130 } else { 2131 mtx_unlock(&target->luns_mtx); 2132 device = request_ccb->ccb_h.path->device; 2133 /* Continue sequential LUN scan if: */ 2134 /* -- we have more LUNs that need recheck */ 2135 mtx_lock(&target->bus->eb_mtx); 2136 nextdev = device; 2137 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2138 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2139 break; 2140 mtx_unlock(&target->bus->eb_mtx); 2141 if (nextdev != NULL) { 2142 next_target = 0; 2143 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2144 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2145 next_target = 1; 2146 /* -- this LUN is connected and its SCSI version 2147 * allows more LUNs. */ 2148 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2149 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2150 CAN_SRCH_HI_DENSE(device)) 2151 next_target = 0; 2152 /* -- this LUN is disconnected, its SCSI version 2153 * allows more LUNs and we guess they may be. */ 2154 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2155 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2156 CAN_SRCH_HI_SPARSE(device)) 2157 next_target = 0; 2158 } 2159 if (next_target == 0) { 2160 lun_id++; 2161 if (lun_id > scan_info->cpi->max_lun) 2162 next_target = 1; 2163 } 2164 } 2165 2166 /* 2167 * Check to see if we scan any further luns. 2168 */ 2169 if (next_target) { 2170 int done; 2171 2172 /* 2173 * Free the current request path- we're done with it. 2174 */ 2175 xpt_free_path(oldpath); 2176 hop_again: 2177 done = 0; 2178 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2179 done = 1; 2180 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2181 scan_info->counter++; 2182 if (scan_info->counter == 2183 scan_info->cpi->initiator_id) { 2184 scan_info->counter++; 2185 } 2186 if (scan_info->counter >= 2187 scan_info->cpi->max_target+1) { 2188 done = 1; 2189 } 2190 } else { 2191 scan_info->counter--; 2192 if (scan_info->counter == 0) { 2193 done = 1; 2194 } 2195 } 2196 if (done) { 2197 mtx_unlock(mtx); 2198 xpt_free_ccb(request_ccb); 2199 xpt_free_ccb((union ccb *)scan_info->cpi); 2200 request_ccb = scan_info->request_ccb; 2201 CAM_DEBUG(request_ccb->ccb_h.path, 2202 CAM_DEBUG_TRACE, 2203 ("SCAN done for %p\n", scan_info)); 2204 free(scan_info, M_CAMXPT); 2205 request_ccb->ccb_h.status = CAM_REQ_CMP; 2206 xpt_done(request_ccb); 2207 break; 2208 } 2209 2210 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2211 mtx_unlock(mtx); 2212 xpt_free_ccb(request_ccb); 2213 break; 2214 } 2215 status = xpt_create_path(&path, NULL, 2216 scan_info->request_ccb->ccb_h.path_id, 2217 scan_info->counter, 0); 2218 if (status != CAM_REQ_CMP) { 2219 mtx_unlock(mtx); 2220 printf("scsi_scan_bus: xpt_create_path failed" 2221 " with status %#x, bus scan halted\n", 2222 status); 2223 xpt_free_ccb(request_ccb); 2224 xpt_free_ccb((union ccb *)scan_info->cpi); 2225 request_ccb = scan_info->request_ccb; 2226 free(scan_info, M_CAMXPT); 2227 request_ccb->ccb_h.status = status; 2228 xpt_done(request_ccb); 2229 break; 2230 } 2231 xpt_setup_ccb(&request_ccb->ccb_h, path, 2232 request_ccb->ccb_h.pinfo.priority); 2233 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2234 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2235 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2236 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2237 request_ccb->crcn.flags = 2238 scan_info->request_ccb->crcn.flags; 2239 } else { 2240 status = xpt_create_path(&path, NULL, 2241 path_id, target_id, lun_id); 2242 /* 2243 * Free the old request path- we're done with it. We 2244 * do this *after* creating the new path so that 2245 * we don't remove a target that has our lun list 2246 * in the case that lun 0 is not present. 2247 */ 2248 xpt_free_path(oldpath); 2249 if (status != CAM_REQ_CMP) { 2250 printf("scsi_scan_bus: xpt_create_path failed " 2251 "with status %#x, halting LUN scan\n", 2252 status); 2253 goto hop_again; 2254 } 2255 xpt_setup_ccb(&request_ccb->ccb_h, path, 2256 request_ccb->ccb_h.pinfo.priority); 2257 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2258 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2259 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2260 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2261 request_ccb->crcn.flags = 2262 scan_info->request_ccb->crcn.flags; 2263 } 2264 mtx_unlock(mtx); 2265 xpt_action(request_ccb); 2266 break; 2267 } 2268 default: 2269 break; 2270 } 2271 } 2272 2273 static void 2274 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2275 cam_flags flags, union ccb *request_ccb) 2276 { 2277 struct ccb_pathinq cpi; 2278 cam_status status; 2279 struct cam_path *new_path; 2280 struct cam_periph *old_periph; 2281 int lock; 2282 2283 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2284 2285 memset(&cpi, 0, sizeof(cpi)); 2286 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2287 cpi.ccb_h.func_code = XPT_PATH_INQ; 2288 xpt_action((union ccb *)&cpi); 2289 2290 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2291 if (request_ccb != NULL) { 2292 request_ccb->ccb_h.status = cpi.ccb_h.status; 2293 xpt_done(request_ccb); 2294 } 2295 return; 2296 } 2297 2298 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2299 /* 2300 * Can't scan the bus on an adapter that 2301 * cannot perform the initiator role. 2302 */ 2303 if (request_ccb != NULL) { 2304 request_ccb->ccb_h.status = CAM_REQ_CMP; 2305 xpt_done(request_ccb); 2306 } 2307 return; 2308 } 2309 2310 if (request_ccb == NULL) { 2311 request_ccb = xpt_alloc_ccb_nowait(); 2312 if (request_ccb == NULL) { 2313 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2314 "can't continue\n"); 2315 return; 2316 } 2317 status = xpt_create_path(&new_path, NULL, 2318 path->bus->path_id, 2319 path->target->target_id, 2320 path->device->lun_id); 2321 if (status != CAM_REQ_CMP) { 2322 xpt_print(path, "scsi_scan_lun: can't create path, " 2323 "can't continue\n"); 2324 xpt_free_ccb(request_ccb); 2325 return; 2326 } 2327 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2328 request_ccb->ccb_h.cbfcnp = xptscandone; 2329 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2330 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2331 request_ccb->crcn.flags = flags; 2332 } 2333 2334 lock = (xpt_path_owned(path) == 0); 2335 if (lock) 2336 xpt_path_lock(path); 2337 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2338 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2339 probe_softc *softc; 2340 2341 softc = (probe_softc *)old_periph->softc; 2342 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2343 &request_ccb->ccb_h, periph_links.tqe); 2344 } else { 2345 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2346 xpt_done(request_ccb); 2347 } 2348 } else { 2349 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2350 probestart, "probe", 2351 CAM_PERIPH_BIO, 2352 request_ccb->ccb_h.path, NULL, 0, 2353 request_ccb); 2354 2355 if (status != CAM_REQ_CMP) { 2356 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2357 "returned an error, can't continue probe\n"); 2358 request_ccb->ccb_h.status = status; 2359 xpt_done(request_ccb); 2360 } 2361 } 2362 if (lock) 2363 xpt_path_unlock(path); 2364 } 2365 2366 static void 2367 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2368 { 2369 2370 xpt_free_path(done_ccb->ccb_h.path); 2371 xpt_free_ccb(done_ccb); 2372 } 2373 2374 static struct cam_ed * 2375 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2376 { 2377 struct scsi_quirk_entry *quirk; 2378 struct cam_ed *device; 2379 2380 device = xpt_alloc_device(bus, target, lun_id); 2381 if (device == NULL) 2382 return (NULL); 2383 2384 /* 2385 * Take the default quirk entry until we have inquiry 2386 * data and can determine a better quirk to use. 2387 */ 2388 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2389 device->quirk = (void *)quirk; 2390 device->mintags = quirk->mintags; 2391 device->maxtags = quirk->maxtags; 2392 bzero(&device->inq_data, sizeof(device->inq_data)); 2393 device->inq_flags = 0; 2394 device->queue_flags = 0; 2395 device->serial_num = NULL; 2396 device->serial_num_len = 0; 2397 device->device_id = NULL; 2398 device->device_id_len = 0; 2399 device->supported_vpds = NULL; 2400 device->supported_vpds_len = 0; 2401 return (device); 2402 } 2403 2404 static void 2405 scsi_devise_transport(struct cam_path *path) 2406 { 2407 struct ccb_pathinq cpi; 2408 struct ccb_trans_settings cts; 2409 struct scsi_inquiry_data *inq_buf; 2410 2411 /* Get transport information from the SIM */ 2412 memset(&cpi, 0, sizeof(cpi)); 2413 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2414 cpi.ccb_h.func_code = XPT_PATH_INQ; 2415 xpt_action((union ccb *)&cpi); 2416 2417 inq_buf = NULL; 2418 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2419 inq_buf = &path->device->inq_data; 2420 path->device->protocol = PROTO_SCSI; 2421 path->device->protocol_version = 2422 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2423 path->device->transport = cpi.transport; 2424 path->device->transport_version = cpi.transport_version; 2425 2426 /* 2427 * Any device not using SPI3 features should 2428 * be considered SPI2 or lower. 2429 */ 2430 if (inq_buf != NULL) { 2431 if (path->device->transport == XPORT_SPI 2432 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2433 && path->device->transport_version > 2) 2434 path->device->transport_version = 2; 2435 } else { 2436 struct cam_ed* otherdev; 2437 2438 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2439 otherdev != NULL; 2440 otherdev = TAILQ_NEXT(otherdev, links)) { 2441 if (otherdev != path->device) 2442 break; 2443 } 2444 2445 if (otherdev != NULL) { 2446 /* 2447 * Initially assume the same versioning as 2448 * prior luns for this target. 2449 */ 2450 path->device->protocol_version = 2451 otherdev->protocol_version; 2452 path->device->transport_version = 2453 otherdev->transport_version; 2454 } else { 2455 /* Until we know better, opt for safety */ 2456 path->device->protocol_version = 2; 2457 if (path->device->transport == XPORT_SPI) 2458 path->device->transport_version = 2; 2459 else 2460 path->device->transport_version = 0; 2461 } 2462 } 2463 2464 /* 2465 * XXX 2466 * For a device compliant with SPC-2 we should be able 2467 * to determine the transport version supported by 2468 * scrutinizing the version descriptors in the 2469 * inquiry buffer. 2470 */ 2471 2472 /* Tell the controller what we think */ 2473 memset(&cts, 0, sizeof(cts)); 2474 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2475 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2476 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2477 cts.transport = path->device->transport; 2478 cts.transport_version = path->device->transport_version; 2479 cts.protocol = path->device->protocol; 2480 cts.protocol_version = path->device->protocol_version; 2481 cts.proto_specific.valid = 0; 2482 cts.xport_specific.valid = 0; 2483 xpt_action((union ccb *)&cts); 2484 } 2485 2486 static void 2487 scsi_dev_advinfo(union ccb *start_ccb) 2488 { 2489 struct cam_ed *device; 2490 struct ccb_dev_advinfo *cdai; 2491 off_t amt; 2492 2493 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2494 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2495 device = start_ccb->ccb_h.path->device; 2496 cdai = &start_ccb->cdai; 2497 switch(cdai->buftype) { 2498 case CDAI_TYPE_SCSI_DEVID: 2499 if (cdai->flags & CDAI_FLAG_STORE) 2500 return; 2501 cdai->provsiz = device->device_id_len; 2502 if (device->device_id_len == 0) 2503 break; 2504 amt = device->device_id_len; 2505 if (cdai->provsiz > cdai->bufsiz) 2506 amt = cdai->bufsiz; 2507 memcpy(cdai->buf, device->device_id, amt); 2508 break; 2509 case CDAI_TYPE_SERIAL_NUM: 2510 if (cdai->flags & CDAI_FLAG_STORE) 2511 return; 2512 cdai->provsiz = device->serial_num_len; 2513 if (device->serial_num_len == 0) 2514 break; 2515 amt = device->serial_num_len; 2516 if (cdai->provsiz > cdai->bufsiz) 2517 amt = cdai->bufsiz; 2518 memcpy(cdai->buf, device->serial_num, amt); 2519 break; 2520 case CDAI_TYPE_PHYS_PATH: 2521 if (cdai->flags & CDAI_FLAG_STORE) { 2522 if (device->physpath != NULL) { 2523 free(device->physpath, M_CAMXPT); 2524 device->physpath = NULL; 2525 device->physpath_len = 0; 2526 } 2527 /* Clear existing buffer if zero length */ 2528 if (cdai->bufsiz == 0) 2529 break; 2530 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2531 if (device->physpath == NULL) { 2532 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2533 return; 2534 } 2535 device->physpath_len = cdai->bufsiz; 2536 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2537 } else { 2538 cdai->provsiz = device->physpath_len; 2539 if (device->physpath_len == 0) 2540 break; 2541 amt = device->physpath_len; 2542 if (cdai->provsiz > cdai->bufsiz) 2543 amt = cdai->bufsiz; 2544 memcpy(cdai->buf, device->physpath, amt); 2545 } 2546 break; 2547 case CDAI_TYPE_RCAPLONG: 2548 if (cdai->flags & CDAI_FLAG_STORE) { 2549 if (device->rcap_buf != NULL) { 2550 free(device->rcap_buf, M_CAMXPT); 2551 device->rcap_buf = NULL; 2552 } 2553 2554 device->rcap_len = cdai->bufsiz; 2555 /* Clear existing buffer if zero length */ 2556 if (cdai->bufsiz == 0) 2557 break; 2558 2559 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2560 M_NOWAIT); 2561 if (device->rcap_buf == NULL) { 2562 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2563 return; 2564 } 2565 2566 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2567 } else { 2568 cdai->provsiz = device->rcap_len; 2569 if (device->rcap_len == 0) 2570 break; 2571 amt = device->rcap_len; 2572 if (cdai->provsiz > cdai->bufsiz) 2573 amt = cdai->bufsiz; 2574 memcpy(cdai->buf, device->rcap_buf, amt); 2575 } 2576 break; 2577 case CDAI_TYPE_EXT_INQ: 2578 /* 2579 * We fetch extended inquiry data during probe, if 2580 * available. We don't allow changing it. 2581 */ 2582 if (cdai->flags & CDAI_FLAG_STORE) 2583 return; 2584 cdai->provsiz = device->ext_inq_len; 2585 if (device->ext_inq_len == 0) 2586 break; 2587 amt = device->ext_inq_len; 2588 if (cdai->provsiz > cdai->bufsiz) 2589 amt = cdai->bufsiz; 2590 memcpy(cdai->buf, device->ext_inq, amt); 2591 break; 2592 default: 2593 return; 2594 } 2595 start_ccb->ccb_h.status = CAM_REQ_CMP; 2596 2597 if (cdai->flags & CDAI_FLAG_STORE) { 2598 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2599 (void *)(uintptr_t)cdai->buftype); 2600 } 2601 } 2602 2603 static void 2604 scsi_action(union ccb *start_ccb) 2605 { 2606 2607 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2608 #ifdef notyet 2609 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2610 ("%s: ccb %p, func_code %#x should not be allocated " 2611 "from UMA zone\n", 2612 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2613 #else 2614 if ((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) != 0) { 2615 printf("%s: ccb %p, func_code %#x should not be allocated " 2616 "from UMA zone\n", 2617 __func__, start_ccb, start_ccb->ccb_h.func_code); 2618 } 2619 #endif 2620 } 2621 2622 switch (start_ccb->ccb_h.func_code) { 2623 case XPT_SET_TRAN_SETTINGS: 2624 { 2625 scsi_set_transfer_settings(&start_ccb->cts, 2626 start_ccb->ccb_h.path, 2627 /*async_update*/FALSE); 2628 break; 2629 } 2630 case XPT_SCAN_BUS: 2631 case XPT_SCAN_TGT: 2632 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2633 break; 2634 case XPT_SCAN_LUN: 2635 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2636 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2637 start_ccb); 2638 break; 2639 case XPT_DEV_ADVINFO: 2640 { 2641 scsi_dev_advinfo(start_ccb); 2642 break; 2643 } 2644 default: 2645 xpt_action_default(start_ccb); 2646 break; 2647 } 2648 } 2649 2650 static void 2651 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2652 int async_update) 2653 { 2654 struct ccb_pathinq cpi; 2655 struct ccb_trans_settings cur_cts; 2656 struct ccb_trans_settings_scsi *scsi; 2657 struct ccb_trans_settings_scsi *cur_scsi; 2658 struct scsi_inquiry_data *inq_data; 2659 struct cam_ed *device; 2660 2661 if (path == NULL || (device = path->device) == NULL) { 2662 cts->ccb_h.status = CAM_PATH_INVALID; 2663 xpt_done((union ccb *)cts); 2664 return; 2665 } 2666 2667 if (cts->protocol == PROTO_UNKNOWN 2668 || cts->protocol == PROTO_UNSPECIFIED) { 2669 cts->protocol = device->protocol; 2670 cts->protocol_version = device->protocol_version; 2671 } 2672 2673 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2674 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2675 cts->protocol_version = device->protocol_version; 2676 2677 if (cts->protocol != device->protocol) { 2678 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2679 cts->protocol, device->protocol); 2680 cts->protocol = device->protocol; 2681 } 2682 2683 if (cts->protocol_version > device->protocol_version) { 2684 if (bootverbose) { 2685 xpt_print(path, "Down reving Protocol " 2686 "Version from %d to %d?\n", cts->protocol_version, 2687 device->protocol_version); 2688 } 2689 cts->protocol_version = device->protocol_version; 2690 } 2691 2692 if (cts->transport == XPORT_UNKNOWN 2693 || cts->transport == XPORT_UNSPECIFIED) { 2694 cts->transport = device->transport; 2695 cts->transport_version = device->transport_version; 2696 } 2697 2698 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2699 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2700 cts->transport_version = device->transport_version; 2701 2702 if (cts->transport != device->transport) { 2703 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2704 cts->transport, device->transport); 2705 cts->transport = device->transport; 2706 } 2707 2708 if (cts->transport_version > device->transport_version) { 2709 if (bootverbose) { 2710 xpt_print(path, "Down reving Transport " 2711 "Version from %d to %d?\n", cts->transport_version, 2712 device->transport_version); 2713 } 2714 cts->transport_version = device->transport_version; 2715 } 2716 2717 /* 2718 * Nothing more of interest to do unless 2719 * this is a device connected via the 2720 * SCSI protocol. 2721 */ 2722 if (cts->protocol != PROTO_SCSI) { 2723 if (async_update == FALSE) 2724 xpt_action_default((union ccb *)cts); 2725 return; 2726 } 2727 2728 inq_data = &device->inq_data; 2729 scsi = &cts->proto_specific.scsi; 2730 memset(&cpi, 0, sizeof(cpi)); 2731 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2732 cpi.ccb_h.func_code = XPT_PATH_INQ; 2733 xpt_action((union ccb *)&cpi); 2734 2735 /* SCSI specific sanity checking */ 2736 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2737 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2738 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2739 || (device->mintags == 0)) { 2740 /* 2741 * Can't tag on hardware that doesn't support tags, 2742 * doesn't have it enabled, or has broken tag support. 2743 */ 2744 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2745 } 2746 2747 if (async_update == FALSE) { 2748 /* 2749 * Perform sanity checking against what the 2750 * controller and device can do. 2751 */ 2752 memset(&cur_cts, 0, sizeof(cur_cts)); 2753 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2754 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2755 cur_cts.type = cts->type; 2756 xpt_action((union ccb *)&cur_cts); 2757 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2758 return; 2759 } 2760 cur_scsi = &cur_cts.proto_specific.scsi; 2761 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2762 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2763 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2764 } 2765 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2766 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2767 } 2768 2769 /* SPI specific sanity checking */ 2770 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2771 u_int spi3caps; 2772 struct ccb_trans_settings_spi *spi; 2773 struct ccb_trans_settings_spi *cur_spi; 2774 2775 spi = &cts->xport_specific.spi; 2776 2777 cur_spi = &cur_cts.xport_specific.spi; 2778 2779 /* Fill in any gaps in what the user gave us */ 2780 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2781 spi->sync_period = cur_spi->sync_period; 2782 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2783 spi->sync_period = 0; 2784 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2785 spi->sync_offset = cur_spi->sync_offset; 2786 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2787 spi->sync_offset = 0; 2788 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2789 spi->ppr_options = cur_spi->ppr_options; 2790 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2791 spi->ppr_options = 0; 2792 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2793 spi->bus_width = cur_spi->bus_width; 2794 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2795 spi->bus_width = 0; 2796 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2797 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2798 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2799 } 2800 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2801 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2802 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2803 && (inq_data->flags & SID_Sync) == 0 2804 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2805 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2806 /* Force async */ 2807 spi->sync_period = 0; 2808 spi->sync_offset = 0; 2809 } 2810 2811 switch (spi->bus_width) { 2812 case MSG_EXT_WDTR_BUS_32_BIT: 2813 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2814 || (inq_data->flags & SID_WBus32) != 0 2815 || cts->type == CTS_TYPE_USER_SETTINGS) 2816 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2817 break; 2818 /* Fall Through to 16-bit */ 2819 case MSG_EXT_WDTR_BUS_16_BIT: 2820 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2821 || (inq_data->flags & SID_WBus16) != 0 2822 || cts->type == CTS_TYPE_USER_SETTINGS) 2823 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2824 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2825 break; 2826 } 2827 /* Fall Through to 8-bit */ 2828 default: /* New bus width?? */ 2829 case MSG_EXT_WDTR_BUS_8_BIT: 2830 /* All targets can do this */ 2831 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2832 break; 2833 } 2834 2835 spi3caps = cpi.xport_specific.spi.ppr_options; 2836 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2837 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2838 spi3caps &= inq_data->spi3data; 2839 2840 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2841 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2842 2843 if ((spi3caps & SID_SPI_IUS) == 0) 2844 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2845 2846 if ((spi3caps & SID_SPI_QAS) == 0) 2847 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2848 2849 /* No SPI Transfer settings are allowed unless we are wide */ 2850 if (spi->bus_width == 0) 2851 spi->ppr_options = 0; 2852 2853 if ((spi->valid & CTS_SPI_VALID_DISC) 2854 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2855 /* 2856 * Can't tag queue without disconnection. 2857 */ 2858 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2859 scsi->valid |= CTS_SCSI_VALID_TQ; 2860 } 2861 2862 /* 2863 * If we are currently performing tagged transactions to 2864 * this device and want to change its negotiation parameters, 2865 * go non-tagged for a bit to give the controller a chance to 2866 * negotiate unhampered by tag messages. 2867 */ 2868 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2869 && (device->inq_flags & SID_CmdQue) != 0 2870 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2871 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2872 CTS_SPI_VALID_SYNC_OFFSET| 2873 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2874 scsi_toggle_tags(path); 2875 } 2876 2877 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2878 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2879 int device_tagenb; 2880 2881 /* 2882 * If we are transitioning from tags to no-tags or 2883 * vice-versa, we need to carefully freeze and restart 2884 * the queue so that we don't overlap tagged and non-tagged 2885 * commands. We also temporarily stop tags if there is 2886 * a change in transfer negotiation settings to allow 2887 * "tag-less" negotiation. 2888 */ 2889 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2890 || (device->inq_flags & SID_CmdQue) != 0) 2891 device_tagenb = TRUE; 2892 else 2893 device_tagenb = FALSE; 2894 2895 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2896 && device_tagenb == FALSE) 2897 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2898 && device_tagenb == TRUE)) { 2899 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2900 /* 2901 * Delay change to use tags until after a 2902 * few commands have gone to this device so 2903 * the controller has time to perform transfer 2904 * negotiations without tagged messages getting 2905 * in the way. 2906 */ 2907 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2908 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2909 } else { 2910 xpt_stop_tags(path); 2911 } 2912 } 2913 } 2914 if (async_update == FALSE) 2915 xpt_action_default((union ccb *)cts); 2916 } 2917 2918 static void 2919 scsi_toggle_tags(struct cam_path *path) 2920 { 2921 struct cam_ed *dev; 2922 2923 /* 2924 * Give controllers a chance to renegotiate 2925 * before starting tag operations. We 2926 * "toggle" tagged queuing off then on 2927 * which causes the tag enable command delay 2928 * counter to come into effect. 2929 */ 2930 dev = path->device; 2931 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2932 || ((dev->inq_flags & SID_CmdQue) != 0 2933 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2934 struct ccb_trans_settings cts; 2935 2936 memset(&cts, 0, sizeof(cts)); 2937 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2938 cts.protocol = PROTO_SCSI; 2939 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2940 cts.transport = XPORT_UNSPECIFIED; 2941 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2942 cts.proto_specific.scsi.flags = 0; 2943 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2944 scsi_set_transfer_settings(&cts, path, 2945 /*async_update*/TRUE); 2946 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2947 scsi_set_transfer_settings(&cts, path, 2948 /*async_update*/TRUE); 2949 } 2950 } 2951 2952 /* 2953 * Handle any per-device event notifications that require action by the XPT. 2954 */ 2955 static void 2956 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2957 struct cam_ed *device, void *async_arg) 2958 { 2959 cam_status status; 2960 struct cam_path newpath; 2961 2962 /* 2963 * We only need to handle events for real devices. 2964 */ 2965 if (target->target_id == CAM_TARGET_WILDCARD 2966 || device->lun_id == CAM_LUN_WILDCARD) 2967 return; 2968 2969 /* 2970 * We need our own path with wildcards expanded to 2971 * handle certain types of events. 2972 */ 2973 if ((async_code == AC_SENT_BDR) 2974 || (async_code == AC_BUS_RESET) 2975 || (async_code == AC_INQ_CHANGED)) 2976 status = xpt_compile_path(&newpath, NULL, 2977 bus->path_id, 2978 target->target_id, 2979 device->lun_id); 2980 else 2981 status = CAM_REQ_CMP_ERR; 2982 2983 if (status == CAM_REQ_CMP) { 2984 /* 2985 * Allow transfer negotiation to occur in a 2986 * tag free environment and after settle delay. 2987 */ 2988 if (async_code == AC_SENT_BDR 2989 || async_code == AC_BUS_RESET) { 2990 cam_freeze_devq(&newpath); 2991 cam_release_devq(&newpath, 2992 RELSIM_RELEASE_AFTER_TIMEOUT, 2993 /*reduction*/0, 2994 /*timeout*/scsi_delay, 2995 /*getcount_only*/0); 2996 scsi_toggle_tags(&newpath); 2997 } 2998 2999 if (async_code == AC_INQ_CHANGED) { 3000 /* 3001 * We've sent a start unit command, or 3002 * something similar to a device that 3003 * may have caused its inquiry data to 3004 * change. So we re-scan the device to 3005 * refresh the inquiry data for it. 3006 */ 3007 scsi_scan_lun(newpath.periph, &newpath, 3008 CAM_EXPECT_INQ_CHANGE, NULL); 3009 } 3010 xpt_release_path(&newpath); 3011 } else if (async_code == AC_LOST_DEVICE && 3012 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3013 device->flags |= CAM_DEV_UNCONFIGURED; 3014 xpt_release_device(device); 3015 } else if (async_code == AC_TRANSFER_NEG) { 3016 struct ccb_trans_settings *settings; 3017 struct cam_path path; 3018 3019 settings = (struct ccb_trans_settings *)async_arg; 3020 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3021 device->lun_id); 3022 scsi_set_transfer_settings(settings, &path, 3023 /*async_update*/TRUE); 3024 xpt_release_path(&path); 3025 } 3026 } 3027 3028 static void 3029 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3030 { 3031 struct ccb_pathinq cpi; 3032 struct cam_path *path = periph->path; 3033 3034 cam_periph_assert(periph, MA_OWNED); 3035 3036 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3037 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3038 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3039 xpt_action((union ccb*)cts); 3040 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3041 return; 3042 3043 /* Ask the SIM for its base transfer speed */ 3044 memset(&cpi, 0, sizeof(cpi)); 3045 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3046 cpi.ccb_h.func_code = XPT_PATH_INQ; 3047 xpt_action((union ccb *)&cpi); 3048 3049 /* Report connection speed */ 3050 *speed = cpi.base_transfer_speed; 3051 *freq = 0; 3052 3053 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3054 struct ccb_trans_settings_spi *spi = 3055 &cts->xport_specific.spi; 3056 3057 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3058 && spi->sync_offset != 0) { 3059 *freq = scsi_calc_syncsrate(spi->sync_period); 3060 *speed = *freq; 3061 } 3062 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3063 *speed *= (0x01 << spi->bus_width); 3064 } 3065 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3066 struct ccb_trans_settings_fc *fc = 3067 &cts->xport_specific.fc; 3068 3069 if (fc->valid & CTS_FC_VALID_SPEED) 3070 *speed = fc->bitrate; 3071 } 3072 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3073 struct ccb_trans_settings_sas *sas = 3074 &cts->xport_specific.sas; 3075 3076 if (sas->valid & CTS_SAS_VALID_SPEED) 3077 *speed = sas->bitrate; 3078 } 3079 } 3080 3081 static void 3082 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3083 { 3084 struct ccb_trans_settings cts; 3085 u_int speed, freq, mb; 3086 3087 memset(&cts, 0, sizeof(cts)); 3088 _scsi_announce_periph(periph, &speed, &freq, &cts); 3089 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3090 return; 3091 3092 mb = speed / 1000; 3093 if (mb > 0) 3094 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3095 periph->periph_name, periph->unit_number, 3096 mb, speed % 1000); 3097 else 3098 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3099 periph->unit_number, speed); 3100 /* Report additional information about SPI connections */ 3101 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3102 struct ccb_trans_settings_spi *spi; 3103 3104 spi = &cts.xport_specific.spi; 3105 if (freq != 0) { 3106 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3107 freq % 1000, 3108 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3109 ? " DT" : "", 3110 spi->sync_offset); 3111 } 3112 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3113 && spi->bus_width > 0) { 3114 if (freq != 0) { 3115 sbuf_printf(sb, ", "); 3116 } else { 3117 sbuf_printf(sb, " ("); 3118 } 3119 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3120 } else if (freq != 0) { 3121 sbuf_printf(sb, ")"); 3122 } 3123 } 3124 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3125 struct ccb_trans_settings_fc *fc; 3126 3127 fc = &cts.xport_specific.fc; 3128 if (fc->valid & CTS_FC_VALID_WWNN) 3129 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3130 if (fc->valid & CTS_FC_VALID_WWPN) 3131 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3132 if (fc->valid & CTS_FC_VALID_PORT) 3133 sbuf_printf(sb, " PortID 0x%x", fc->port); 3134 } 3135 sbuf_printf(sb, "\n"); 3136 } 3137 3138 static void 3139 scsi_announce_periph(struct cam_periph *periph) 3140 { 3141 struct ccb_trans_settings cts; 3142 u_int speed, freq, mb; 3143 3144 memset(&cts, 0, sizeof(cts)); 3145 _scsi_announce_periph(periph, &speed, &freq, &cts); 3146 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3147 return; 3148 3149 mb = speed / 1000; 3150 if (mb > 0) 3151 printf("%s%d: %d.%03dMB/s transfers", 3152 periph->periph_name, periph->unit_number, 3153 mb, speed % 1000); 3154 else 3155 printf("%s%d: %dKB/s transfers", periph->periph_name, 3156 periph->unit_number, speed); 3157 /* Report additional information about SPI connections */ 3158 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3159 struct ccb_trans_settings_spi *spi; 3160 3161 spi = &cts.xport_specific.spi; 3162 if (freq != 0) { 3163 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3164 freq % 1000, 3165 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3166 ? " DT" : "", 3167 spi->sync_offset); 3168 } 3169 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3170 && spi->bus_width > 0) { 3171 if (freq != 0) { 3172 printf(", "); 3173 } else { 3174 printf(" ("); 3175 } 3176 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3177 } else if (freq != 0) { 3178 printf(")"); 3179 } 3180 } 3181 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3182 struct ccb_trans_settings_fc *fc; 3183 3184 fc = &cts.xport_specific.fc; 3185 if (fc->valid & CTS_FC_VALID_WWNN) 3186 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3187 if (fc->valid & CTS_FC_VALID_WWPN) 3188 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3189 if (fc->valid & CTS_FC_VALID_PORT) 3190 printf(" PortID 0x%x", fc->port); 3191 } 3192 printf("\n"); 3193 } 3194 3195 static void 3196 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3197 { 3198 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3199 } 3200 3201 static void 3202 scsi_proto_announce(struct cam_ed *device) 3203 { 3204 scsi_print_inquiry(&device->inq_data); 3205 } 3206 3207 static void 3208 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3209 { 3210 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3211 } 3212 3213 static void 3214 scsi_proto_denounce(struct cam_ed *device) 3215 { 3216 scsi_print_inquiry_short(&device->inq_data); 3217 } 3218 3219 static void 3220 scsi_proto_debug_out(union ccb *ccb) 3221 { 3222 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3223 struct cam_ed *device; 3224 3225 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3226 return; 3227 3228 device = ccb->ccb_h.path->device; 3229 CAM_DEBUG(ccb->ccb_h.path, 3230 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3231 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3232 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3233 } 3234