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 static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 83 SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, 84 CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT, 0, 0, 85 sysctl_cam_search_luns, "I", 86 "allow search above LUN 7 for SCSI3 and greater devices"); 87 88 #define CAM_SCSI2_MAXLUN 8 89 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 90 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 91 RPL_LUNDATA_ATYP_PERIPH) || \ 92 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 93 RPL_LUNDATA_ATYP_FLAT)) 94 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 95 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 96 RPL_LUNDATA_ATYP_PERIPH) { \ 97 (lval) = (lp)->luns[(i)].lundata[1]; \ 98 } else { \ 99 (lval) = (lp)->luns[(i)].lundata[0]; \ 100 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 101 (lval) <<= 8; \ 102 (lval) |= (lp)->luns[(i)].lundata[1]; \ 103 } 104 #define CAM_GET_LUN(lp, i, lval) \ 105 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 106 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 107 108 /* 109 * If we're not quirked to search <= the first 8 luns 110 * and we are either quirked to search above lun 8, 111 * or we're > SCSI-2 and we've enabled hilun searching, 112 * or we're > SCSI-2 and the last lun was a success, 113 * we can look for luns above lun 8. 114 */ 115 #define CAN_SRCH_HI_SPARSE(dv) \ 116 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 117 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 118 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 119 120 #define CAN_SRCH_HI_DENSE(dv) \ 121 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 122 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 123 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 124 125 static periph_init_t probe_periph_init; 126 127 static struct periph_driver probe_driver = 128 { 129 probe_periph_init, "probe", 130 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 131 CAM_PERIPH_DRV_EARLY 132 }; 133 134 PERIPHDRIVER_DECLARE(probe, probe_driver); 135 136 typedef enum { 137 PROBE_TUR, 138 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 139 PROBE_FULL_INQUIRY, 140 PROBE_REPORT_LUNS, 141 PROBE_MODE_SENSE, 142 PROBE_SUPPORTED_VPD_LIST, 143 PROBE_DEVICE_ID, 144 PROBE_EXTENDED_INQUIRY, 145 PROBE_SERIAL_NUM, 146 PROBE_TUR_FOR_NEGOTIATION, 147 PROBE_INQUIRY_BASIC_DV1, 148 PROBE_INQUIRY_BASIC_DV2, 149 PROBE_DV_EXIT, 150 PROBE_DONE, 151 PROBE_INVALID 152 } probe_action; 153 154 static char *probe_action_text[] = { 155 "PROBE_TUR", 156 "PROBE_INQUIRY", 157 "PROBE_FULL_INQUIRY", 158 "PROBE_REPORT_LUNS", 159 "PROBE_MODE_SENSE", 160 "PROBE_SUPPORTED_VPD_LIST", 161 "PROBE_DEVICE_ID", 162 "PROBE_EXTENDED_INQUIRY", 163 "PROBE_SERIAL_NUM", 164 "PROBE_TUR_FOR_NEGOTIATION", 165 "PROBE_INQUIRY_BASIC_DV1", 166 "PROBE_INQUIRY_BASIC_DV2", 167 "PROBE_DV_EXIT", 168 "PROBE_DONE", 169 "PROBE_INVALID" 170 }; 171 172 #define PROBE_SET_ACTION(softc, newaction) \ 173 do { \ 174 char **text; \ 175 text = probe_action_text; \ 176 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 177 ("Probe %s to %s\n", text[(softc)->action], \ 178 text[(newaction)])); \ 179 (softc)->action = (newaction); \ 180 } while(0) 181 182 typedef enum { 183 PROBE_INQUIRY_CKSUM = 0x01, 184 PROBE_SERIAL_CKSUM = 0x02, 185 PROBE_NO_ANNOUNCE = 0x04, 186 PROBE_EXTLUN = 0x08 187 } probe_flags; 188 189 typedef struct { 190 TAILQ_HEAD(, ccb_hdr) request_ccbs; 191 probe_action action; 192 union ccb saved_ccb; 193 probe_flags flags; 194 MD5_CTX context; 195 u_int8_t digest[16]; 196 struct cam_periph *periph; 197 } probe_softc; 198 199 static const char quantum[] = "QUANTUM"; 200 static const char sony[] = "SONY"; 201 static const char west_digital[] = "WDIGTL"; 202 static const char samsung[] = "SAMSUNG"; 203 static const char seagate[] = "SEAGATE"; 204 static const char microp[] = "MICROP"; 205 206 static struct scsi_quirk_entry scsi_quirk_table[] = 207 { 208 { 209 /* Reports QUEUE FULL for temporary resource shortages */ 210 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 211 /*quirks*/0, /*mintags*/24, /*maxtags*/32 212 }, 213 { 214 /* Reports QUEUE FULL for temporary resource shortages */ 215 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 216 /*quirks*/0, /*mintags*/24, /*maxtags*/32 217 }, 218 { 219 /* Reports QUEUE FULL for temporary resource shortages */ 220 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 221 /*quirks*/0, /*mintags*/24, /*maxtags*/32 222 }, 223 { 224 /* Broken tagged queuing drive */ 225 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 226 /*quirks*/0, /*mintags*/0, /*maxtags*/0 227 }, 228 { 229 /* Broken tagged queuing drive */ 230 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 231 /*quirks*/0, /*mintags*/0, /*maxtags*/0 232 }, 233 { 234 /* Broken tagged queuing drive */ 235 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 236 /*quirks*/0, /*mintags*/0, /*maxtags*/0 237 }, 238 { 239 /* 240 * Unfortunately, the Quantum Atlas III has the same 241 * problem as the Atlas II drives above. 242 * Reported by: "Johan Granlund" <johan@granlund.nu> 243 * 244 * For future reference, the drive with the problem was: 245 * QUANTUM QM39100TD-SW N1B0 246 * 247 * It's possible that Quantum will fix the problem in later 248 * firmware revisions. If that happens, the quirk entry 249 * will need to be made specific to the firmware revisions 250 * with the problem. 251 * 252 */ 253 /* Reports QUEUE FULL for temporary resource shortages */ 254 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 255 /*quirks*/0, /*mintags*/24, /*maxtags*/32 256 }, 257 { 258 /* 259 * 18 Gig Atlas III, same problem as the 9G version. 260 * Reported by: Andre Albsmeier 261 * <andre.albsmeier@mchp.siemens.de> 262 * 263 * For future reference, the drive with the problem was: 264 * QUANTUM QM318000TD-S N491 265 */ 266 /* Reports QUEUE FULL for temporary resource shortages */ 267 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 268 /*quirks*/0, /*mintags*/24, /*maxtags*/32 269 }, 270 { 271 /* 272 * Broken tagged queuing drive 273 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 274 * and: Martin Renters <martin@tdc.on.ca> 275 */ 276 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 277 /*quirks*/0, /*mintags*/0, /*maxtags*/0 278 }, 279 /* 280 * The Seagate Medalist Pro drives have very poor write 281 * performance with anything more than 2 tags. 282 * 283 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 284 * Drive: <SEAGATE ST36530N 1444> 285 * 286 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 287 * Drive: <SEAGATE ST34520W 1281> 288 * 289 * No one has actually reported that the 9G version 290 * (ST39140*) of the Medalist Pro has the same problem, but 291 * we're assuming that it does because the 4G and 6.5G 292 * versions of the drive are broken. 293 */ 294 { 295 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 296 /*quirks*/0, /*mintags*/2, /*maxtags*/2 297 }, 298 { 299 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 300 /*quirks*/0, /*mintags*/2, /*maxtags*/2 301 }, 302 { 303 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 304 /*quirks*/0, /*mintags*/2, /*maxtags*/2 305 }, 306 { 307 /* 308 * Experiences command timeouts under load with a 309 * tag count higher than 55. 310 */ 311 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 312 /*quirks*/0, /*mintags*/2, /*maxtags*/55 313 }, 314 { 315 /* 316 * Slow when tagged queueing is enabled. Write performance 317 * steadily drops off with more and more concurrent 318 * transactions. Best sequential write performance with 319 * tagged queueing turned off and write caching turned on. 320 * 321 * PR: kern/10398 322 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 323 * Drive: DCAS-34330 w/ "S65A" firmware. 324 * 325 * The drive with the problem had the "S65A" firmware 326 * revision, and has also been reported (by Stephen J. 327 * Roznowski <sjr@home.net>) for a drive with the "S61A" 328 * firmware revision. 329 * 330 * Although no one has reported problems with the 2 gig 331 * version of the DCAS drive, the assumption is that it 332 * has the same problems as the 4 gig version. Therefore 333 * this quirk entries disables tagged queueing for all 334 * DCAS drives. 335 */ 336 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 337 /*quirks*/0, /*mintags*/0, /*maxtags*/0 338 }, 339 { 340 /* Broken tagged queuing drive */ 341 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 342 /*quirks*/0, /*mintags*/0, /*maxtags*/0 343 }, 344 { 345 /* Broken tagged queuing drive */ 346 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 347 /*quirks*/0, /*mintags*/0, /*maxtags*/0 348 }, 349 { 350 /* This does not support other than LUN 0 */ 351 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 352 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 353 }, 354 { 355 /* 356 * Broken tagged queuing drive. 357 * Submitted by: 358 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 359 * in PR kern/9535 360 */ 361 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 362 /*quirks*/0, /*mintags*/0, /*maxtags*/0 363 }, 364 { 365 /* 366 * Slow when tagged queueing is enabled. (1.5MB/sec versus 367 * 8MB/sec.) 368 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 369 * Best performance with these drives is achieved with 370 * tagged queueing turned off, and write caching turned on. 371 */ 372 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 373 /*quirks*/0, /*mintags*/0, /*maxtags*/0 374 }, 375 { 376 /* 377 * Slow when tagged queueing is enabled. (1.5MB/sec versus 378 * 8MB/sec.) 379 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 380 * Best performance with these drives is achieved with 381 * tagged queueing turned off, and write caching turned on. 382 */ 383 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 384 /*quirks*/0, /*mintags*/0, /*maxtags*/0 385 }, 386 { 387 /* 388 * Doesn't handle queue full condition correctly, 389 * so we need to limit maxtags to what the device 390 * can handle instead of determining this automatically. 391 */ 392 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 393 /*quirks*/0, /*mintags*/2, /*maxtags*/32 394 }, 395 { 396 /* Really only one LUN */ 397 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 398 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 399 }, 400 { 401 /* I can't believe we need a quirk for DPT volumes. */ 402 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 403 CAM_QUIRK_NOLUNS, 404 /*mintags*/0, /*maxtags*/255 405 }, 406 { 407 /* 408 * Many Sony CDROM drives don't like multi-LUN probing. 409 */ 410 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 411 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 412 }, 413 { 414 /* 415 * This drive doesn't like multiple LUN probing. 416 * Submitted by: Parag Patel <parag@cgt.com> 417 */ 418 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 419 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 420 }, 421 { 422 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 423 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 424 }, 425 { 426 /* 427 * The 8200 doesn't like multi-lun probing, and probably 428 * don't like serial number requests either. 429 */ 430 { 431 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 432 "EXB-8200*", "*" 433 }, 434 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 435 }, 436 { 437 /* 438 * Let's try the same as above, but for a drive that says 439 * it's an IPL-6860 but is actually an EXB 8200. 440 */ 441 { 442 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 443 "IPL-6860*", "*" 444 }, 445 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 446 }, 447 { 448 /* 449 * These Hitachi drives don't like multi-lun probing. 450 * The PR submitter has a DK319H, but says that the Linux 451 * kernel has a similar work-around for the DK312 and DK314, 452 * so all DK31* drives are quirked here. 453 * PR: misc/18793 454 * Submitted by: Paul Haddad <paul@pth.com> 455 */ 456 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 457 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 458 }, 459 { 460 /* 461 * The Hitachi CJ series with J8A8 firmware apparently has 462 * problems with tagged commands. 463 * PR: 23536 464 * Reported by: amagai@nue.org 465 */ 466 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 467 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 468 }, 469 { 470 /* 471 * These are the large storage arrays. 472 * Submitted by: William Carrel <william.carrel@infospace.com> 473 */ 474 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 475 CAM_QUIRK_HILUNS, 2, 1024 476 }, 477 { 478 /* 479 * This old revision of the TDC3600 is also SCSI-1, and 480 * hangs upon serial number probing. 481 */ 482 { 483 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 484 " TDC 3600", "U07:" 485 }, 486 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 487 }, 488 { 489 /* 490 * Would repond to all LUNs if asked for. 491 */ 492 { 493 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 494 "CP150", "*" 495 }, 496 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 497 }, 498 { 499 /* 500 * Would repond to all LUNs if asked for. 501 */ 502 { 503 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 504 "96X2*", "*" 505 }, 506 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 507 }, 508 { 509 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 510 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 511 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 512 }, 513 { 514 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 515 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 516 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 517 }, 518 { 519 /* TeraSolutions special settings for TRC-22 RAID */ 520 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 521 /*quirks*/0, /*mintags*/55, /*maxtags*/255 522 }, 523 { 524 /* Veritas Storage Appliance */ 525 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 526 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 527 }, 528 { 529 /* 530 * Would respond to all LUNs. Device type and removable 531 * flag are jumper-selectable. 532 */ 533 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 534 "Tahiti 1", "*" 535 }, 536 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 537 }, 538 { 539 /* EasyRAID E5A aka. areca ARC-6010 */ 540 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 541 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 542 }, 543 { 544 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 545 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 546 }, 547 { 548 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 549 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 550 }, 551 { 552 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 553 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 554 }, 555 { 556 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 557 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 558 }, 559 { 560 /* Default tagged queuing parameters for all devices */ 561 { 562 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 563 /*vendor*/"*", /*product*/"*", /*revision*/"*" 564 }, 565 /*quirks*/0, /*mintags*/2, /*maxtags*/255 566 }, 567 }; 568 569 static cam_status proberegister(struct cam_periph *periph, 570 void *arg); 571 static void probeschedule(struct cam_periph *probe_periph); 572 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 573 static void proberequestdefaultnegotiation(struct cam_periph *periph); 574 static int proberequestbackoff(struct cam_periph *periph, 575 struct cam_ed *device); 576 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 577 static void probe_purge_old(struct cam_path *path, 578 struct scsi_report_luns_data *new, 579 probe_flags flags); 580 static void probecleanup(struct cam_periph *periph); 581 static void scsi_find_quirk(struct cam_ed *device); 582 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 583 static void scsi_scan_lun(struct cam_periph *periph, 584 struct cam_path *path, cam_flags flags, 585 union ccb *ccb); 586 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 587 static struct cam_ed * 588 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 589 lun_id_t lun_id); 590 static void scsi_devise_transport(struct cam_path *path); 591 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 592 struct cam_path *path, 593 int async_update); 594 static void scsi_toggle_tags(struct cam_path *path); 595 static void scsi_dev_async(u_int32_t async_code, 596 struct cam_eb *bus, 597 struct cam_et *target, 598 struct cam_ed *device, 599 void *async_arg); 600 static void scsi_action(union ccb *start_ccb); 601 static void scsi_announce_periph(struct cam_periph *periph); 602 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 603 static void scsi_proto_announce(struct cam_ed *device); 604 static void scsi_proto_announce_sbuf(struct cam_ed *device, 605 struct sbuf *sb); 606 static void scsi_proto_denounce(struct cam_ed *device); 607 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 608 struct sbuf *sb); 609 static void scsi_proto_debug_out(union ccb *ccb); 610 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 611 612 static struct xpt_xport_ops scsi_xport_ops = { 613 .alloc_device = scsi_alloc_device, 614 .action = scsi_action, 615 .async = scsi_dev_async, 616 .announce = scsi_announce_periph, 617 .announce_sbuf = scsi_announce_periph_sbuf, 618 }; 619 #define SCSI_XPT_XPORT(x, X) \ 620 static struct xpt_xport scsi_xport_ ## x = { \ 621 .xport = XPORT_ ## X, \ 622 .name = #x, \ 623 .ops = &scsi_xport_ops, \ 624 }; \ 625 CAM_XPT_XPORT(scsi_xport_ ## x); 626 627 SCSI_XPT_XPORT(spi, SPI); 628 SCSI_XPT_XPORT(sas, SAS); 629 SCSI_XPT_XPORT(fc, FC); 630 SCSI_XPT_XPORT(usb, USB); 631 SCSI_XPT_XPORT(iscsi, ISCSI); 632 SCSI_XPT_XPORT(srp, SRP); 633 SCSI_XPT_XPORT(ppb, PPB); 634 635 #undef SCSI_XPORT_XPORT 636 637 static struct xpt_proto_ops scsi_proto_ops = { 638 .announce = scsi_proto_announce, 639 .announce_sbuf = scsi_proto_announce_sbuf, 640 .denounce = scsi_proto_denounce, 641 .denounce_sbuf = scsi_proto_denounce_sbuf, 642 .debug_out = scsi_proto_debug_out, 643 }; 644 static struct xpt_proto scsi_proto = { 645 .proto = PROTO_SCSI, 646 .name = "scsi", 647 .ops = &scsi_proto_ops, 648 }; 649 CAM_XPT_PROTO(scsi_proto); 650 651 static void 652 probe_periph_init(void) 653 { 654 } 655 656 static cam_status 657 proberegister(struct cam_periph *periph, void *arg) 658 { 659 union ccb *request_ccb; /* CCB representing the probe request */ 660 probe_softc *softc; 661 662 request_ccb = (union ccb *)arg; 663 if (request_ccb == NULL) { 664 printf("proberegister: no probe CCB, " 665 "can't register device\n"); 666 return(CAM_REQ_CMP_ERR); 667 } 668 669 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 670 671 if (softc == NULL) { 672 printf("proberegister: Unable to probe new device. " 673 "Unable to allocate softc\n"); 674 return(CAM_REQ_CMP_ERR); 675 } 676 TAILQ_INIT(&softc->request_ccbs); 677 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 678 periph_links.tqe); 679 softc->flags = 0; 680 periph->softc = softc; 681 softc->periph = periph; 682 softc->action = PROBE_INVALID; 683 if (cam_periph_acquire(periph) != 0) 684 return (CAM_REQ_CMP_ERR); 685 686 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 687 scsi_devise_transport(periph->path); 688 689 /* 690 * Ensure we've waited at least a bus settle 691 * delay before attempting to probe the device. 692 * For HBAs that don't do bus resets, this won't make a difference. 693 */ 694 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 695 scsi_delay); 696 probeschedule(periph); 697 return(CAM_REQ_CMP); 698 } 699 700 static void 701 probeschedule(struct cam_periph *periph) 702 { 703 struct ccb_pathinq cpi; 704 union ccb *ccb; 705 probe_softc *softc; 706 707 softc = (probe_softc *)periph->softc; 708 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 709 710 xpt_path_inq(&cpi, periph->path); 711 712 /* 713 * If a device has gone away and another device, or the same one, 714 * is back in the same place, it should have a unit attention 715 * condition pending. It will not report the unit attention in 716 * response to an inquiry, which may leave invalid transfer 717 * negotiations in effect. The TUR will reveal the unit attention 718 * condition. Only send the TUR for lun 0, since some devices 719 * will get confused by commands other than inquiry to non-existent 720 * luns. If you think a device has gone away start your scan from 721 * lun 0. This will insure that any bogus transfer settings are 722 * invalidated. 723 * 724 * If we haven't seen the device before and the controller supports 725 * some kind of transfer negotiation, negotiate with the first 726 * sent command if no bus reset was performed at startup. This 727 * ensures that the device is not confused by transfer negotiation 728 * settings left over by loader or BIOS action. 729 */ 730 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 731 && (ccb->ccb_h.target_lun == 0)) { 732 PROBE_SET_ACTION(softc, PROBE_TUR); 733 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 734 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 735 proberequestdefaultnegotiation(periph); 736 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 737 } else { 738 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 739 } 740 741 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 742 softc->flags |= PROBE_NO_ANNOUNCE; 743 else 744 softc->flags &= ~PROBE_NO_ANNOUNCE; 745 746 if (cpi.hba_misc & PIM_EXTLUNS) 747 softc->flags |= PROBE_EXTLUN; 748 else 749 softc->flags &= ~PROBE_EXTLUN; 750 751 xpt_schedule(periph, CAM_PRIORITY_XPT); 752 } 753 754 static void 755 probestart(struct cam_periph *periph, union ccb *start_ccb) 756 { 757 /* Probe the device that our peripheral driver points to */ 758 struct ccb_scsiio *csio; 759 probe_softc *softc; 760 761 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 762 763 softc = (probe_softc *)periph->softc; 764 csio = &start_ccb->csio; 765 again: 766 767 switch (softc->action) { 768 case PROBE_TUR: 769 case PROBE_TUR_FOR_NEGOTIATION: 770 case PROBE_DV_EXIT: 771 { 772 scsi_test_unit_ready(csio, 773 /*retries*/4, 774 probedone, 775 MSG_SIMPLE_Q_TAG, 776 SSD_FULL_SIZE, 777 /*timeout*/60000); 778 break; 779 } 780 case PROBE_INQUIRY: 781 case PROBE_FULL_INQUIRY: 782 case PROBE_INQUIRY_BASIC_DV1: 783 case PROBE_INQUIRY_BASIC_DV2: 784 { 785 u_int inquiry_len; 786 struct scsi_inquiry_data *inq_buf; 787 788 inq_buf = &periph->path->device->inq_data; 789 790 /* 791 * If the device is currently configured, we calculate an 792 * MD5 checksum of the inquiry data, and if the serial number 793 * length is greater than 0, add the serial number data 794 * into the checksum as well. Once the inquiry and the 795 * serial number check finish, we attempt to figure out 796 * whether we still have the same device. 797 */ 798 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 799 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 800 MD5Init(&softc->context); 801 MD5Update(&softc->context, (unsigned char *)inq_buf, 802 sizeof(struct scsi_inquiry_data)); 803 softc->flags |= PROBE_INQUIRY_CKSUM; 804 if (periph->path->device->serial_num_len > 0) { 805 MD5Update(&softc->context, 806 periph->path->device->serial_num, 807 periph->path->device->serial_num_len); 808 softc->flags |= PROBE_SERIAL_CKSUM; 809 } 810 MD5Final(softc->digest, &softc->context); 811 } 812 813 if (softc->action == PROBE_INQUIRY) 814 inquiry_len = SHORT_INQUIRY_LENGTH; 815 else 816 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 817 818 /* 819 * Some parallel SCSI devices fail to send an 820 * ignore wide residue message when dealing with 821 * odd length inquiry requests. Round up to be 822 * safe. 823 */ 824 inquiry_len = roundup2(inquiry_len, 2); 825 826 if (softc->action == PROBE_INQUIRY_BASIC_DV1 827 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 828 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 829 } 830 if (inq_buf == NULL) { 831 xpt_print(periph->path, "malloc failure- skipping Basic" 832 "Domain Validation\n"); 833 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 834 scsi_test_unit_ready(csio, 835 /*retries*/4, 836 probedone, 837 MSG_SIMPLE_Q_TAG, 838 SSD_FULL_SIZE, 839 /*timeout*/60000); 840 break; 841 } 842 scsi_inquiry(csio, 843 /*retries*/4, 844 probedone, 845 MSG_SIMPLE_Q_TAG, 846 (u_int8_t *)inq_buf, 847 inquiry_len, 848 /*evpd*/FALSE, 849 /*page_code*/0, 850 SSD_MIN_SIZE, 851 /*timeout*/60 * 1000); 852 break; 853 } 854 case PROBE_REPORT_LUNS: 855 { 856 void *rp; 857 858 rp = malloc(periph->path->target->rpl_size, 859 M_CAMXPT, M_NOWAIT | M_ZERO); 860 if (rp == NULL) { 861 struct scsi_inquiry_data *inq_buf; 862 inq_buf = &periph->path->device->inq_data; 863 xpt_print(periph->path, 864 "Unable to alloc report luns storage\n"); 865 if (INQ_DATA_TQ_ENABLED(inq_buf)) 866 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 867 else 868 PROBE_SET_ACTION(softc, 869 PROBE_SUPPORTED_VPD_LIST); 870 goto again; 871 } 872 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 873 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 874 SSD_FULL_SIZE, 60000); break; 875 break; 876 } 877 case PROBE_MODE_SENSE: 878 { 879 void *mode_buf; 880 int mode_buf_len; 881 882 mode_buf_len = sizeof(struct scsi_mode_header_6) 883 + sizeof(struct scsi_mode_blk_desc) 884 + sizeof(struct scsi_control_page); 885 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 886 if (mode_buf != NULL) { 887 scsi_mode_sense(csio, 888 /*retries*/4, 889 probedone, 890 MSG_SIMPLE_Q_TAG, 891 /*dbd*/FALSE, 892 SMS_PAGE_CTRL_CURRENT, 893 SMS_CONTROL_MODE_PAGE, 894 mode_buf, 895 mode_buf_len, 896 SSD_FULL_SIZE, 897 /*timeout*/60000); 898 break; 899 } 900 xpt_print(periph->path, "Unable to mode sense control page - " 901 "malloc failure\n"); 902 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 903 } 904 /* FALLTHROUGH */ 905 case PROBE_SUPPORTED_VPD_LIST: 906 { 907 struct scsi_vpd_supported_page_list *vpd_list; 908 struct cam_ed *device; 909 910 vpd_list = NULL; 911 device = periph->path->device; 912 913 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 914 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 915 M_NOWAIT | M_ZERO); 916 917 if (vpd_list != NULL) { 918 scsi_inquiry(csio, 919 /*retries*/4, 920 probedone, 921 MSG_SIMPLE_Q_TAG, 922 (u_int8_t *)vpd_list, 923 sizeof(*vpd_list), 924 /*evpd*/TRUE, 925 SVPD_SUPPORTED_PAGE_LIST, 926 SSD_MIN_SIZE, 927 /*timeout*/60 * 1000); 928 break; 929 } 930 done: 931 /* 932 * We'll have to do without, let our probedone 933 * routine finish up for us. 934 */ 935 start_ccb->csio.data_ptr = NULL; 936 cam_freeze_devq(periph->path); 937 cam_periph_doacquire(periph); 938 probedone(periph, start_ccb); 939 return; 940 } 941 case PROBE_DEVICE_ID: 942 { 943 struct scsi_vpd_device_id *devid; 944 945 devid = NULL; 946 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 947 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 948 M_NOWAIT | M_ZERO); 949 950 if (devid != NULL) { 951 scsi_inquiry(csio, 952 /*retries*/4, 953 probedone, 954 MSG_SIMPLE_Q_TAG, 955 (uint8_t *)devid, 956 SVPD_DEVICE_ID_MAX_SIZE, 957 /*evpd*/TRUE, 958 SVPD_DEVICE_ID, 959 SSD_MIN_SIZE, 960 /*timeout*/60 * 1000); 961 break; 962 } 963 goto done; 964 } 965 case PROBE_EXTENDED_INQUIRY: 966 { 967 struct scsi_vpd_extended_inquiry_data *ext_inq; 968 969 ext_inq = NULL; 970 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 971 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 972 M_NOWAIT | M_ZERO); 973 974 if (ext_inq != NULL) { 975 scsi_inquiry(csio, 976 /*retries*/4, 977 probedone, 978 MSG_SIMPLE_Q_TAG, 979 (uint8_t *)ext_inq, 980 sizeof(*ext_inq), 981 /*evpd*/TRUE, 982 SVPD_EXTENDED_INQUIRY_DATA, 983 SSD_MIN_SIZE, 984 /*timeout*/60 * 1000); 985 break; 986 } 987 /* 988 * We'll have to do without, let our probedone 989 * routine finish up for us. 990 */ 991 goto done; 992 } 993 case PROBE_SERIAL_NUM: 994 { 995 struct scsi_vpd_unit_serial_number *serial_buf; 996 struct cam_ed* device; 997 998 serial_buf = NULL; 999 device = periph->path->device; 1000 if (device->serial_num != NULL) { 1001 free(device->serial_num, M_CAMXPT); 1002 device->serial_num = NULL; 1003 device->serial_num_len = 0; 1004 } 1005 1006 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 1007 serial_buf = (struct scsi_vpd_unit_serial_number *) 1008 malloc(sizeof(*serial_buf), M_CAMXPT, 1009 M_NOWAIT|M_ZERO); 1010 1011 if (serial_buf != NULL) { 1012 scsi_inquiry(csio, 1013 /*retries*/4, 1014 probedone, 1015 MSG_SIMPLE_Q_TAG, 1016 (u_int8_t *)serial_buf, 1017 sizeof(*serial_buf), 1018 /*evpd*/TRUE, 1019 SVPD_UNIT_SERIAL_NUMBER, 1020 SSD_MIN_SIZE, 1021 /*timeout*/60 * 1000); 1022 break; 1023 } 1024 goto done; 1025 } 1026 default: 1027 panic("probestart: invalid action state 0x%x\n", softc->action); 1028 } 1029 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1030 cam_periph_doacquire(periph); 1031 xpt_action(start_ccb); 1032 } 1033 1034 static void 1035 proberequestdefaultnegotiation(struct cam_periph *periph) 1036 { 1037 struct ccb_trans_settings cts; 1038 1039 memset(&cts, 0, sizeof(cts)); 1040 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1041 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1042 cts.type = CTS_TYPE_USER_SETTINGS; 1043 xpt_action((union ccb *)&cts); 1044 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1045 return; 1046 } 1047 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1048 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1049 xpt_action((union ccb *)&cts); 1050 } 1051 1052 /* 1053 * Backoff Negotiation Code- only pertinent for SPI devices. 1054 */ 1055 static int 1056 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1057 { 1058 struct ccb_trans_settings cts; 1059 struct ccb_trans_settings_spi *spi; 1060 1061 memset(&cts, 0, sizeof (cts)); 1062 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1063 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1064 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1065 xpt_action((union ccb *)&cts); 1066 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1067 if (bootverbose) { 1068 xpt_print(periph->path, 1069 "failed to get current device settings\n"); 1070 } 1071 return (0); 1072 } 1073 if (cts.transport != XPORT_SPI) { 1074 if (bootverbose) { 1075 xpt_print(periph->path, "not SPI transport\n"); 1076 } 1077 return (0); 1078 } 1079 spi = &cts.xport_specific.spi; 1080 1081 /* 1082 * We cannot renegotiate sync rate if we don't have one. 1083 */ 1084 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1085 if (bootverbose) { 1086 xpt_print(periph->path, "no sync rate known\n"); 1087 } 1088 return (0); 1089 } 1090 1091 /* 1092 * We'll assert that we don't have to touch PPR options- the 1093 * SIM will see what we do with period and offset and adjust 1094 * the PPR options as appropriate. 1095 */ 1096 1097 /* 1098 * A sync rate with unknown or zero offset is nonsensical. 1099 * A sync period of zero means Async. 1100 */ 1101 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1102 || spi->sync_offset == 0 || spi->sync_period == 0) { 1103 if (bootverbose) { 1104 xpt_print(periph->path, "no sync rate available\n"); 1105 } 1106 return (0); 1107 } 1108 1109 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1110 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1111 ("hit async: giving up on DV\n")); 1112 return (0); 1113 } 1114 1115 /* 1116 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1117 * We don't try to remember 'last' settings to see if the SIM actually 1118 * gets into the speed we want to set. We check on the SIM telling 1119 * us that a requested speed is bad, but otherwise don't try and 1120 * check the speed due to the asynchronous and handshake nature 1121 * of speed setting. 1122 */ 1123 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1124 for (;;) { 1125 spi->sync_period++; 1126 if (spi->sync_period >= 0xf) { 1127 spi->sync_period = 0; 1128 spi->sync_offset = 0; 1129 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1130 ("setting to async for DV\n")); 1131 /* 1132 * Once we hit async, we don't want to try 1133 * any more settings. 1134 */ 1135 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1136 } else if (bootverbose) { 1137 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1138 ("DV: period 0x%x\n", spi->sync_period)); 1139 printf("setting period to 0x%x\n", spi->sync_period); 1140 } 1141 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1142 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1143 xpt_action((union ccb *)&cts); 1144 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1145 break; 1146 } 1147 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1148 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1149 if (spi->sync_period == 0) { 1150 return (0); 1151 } 1152 } 1153 return (1); 1154 } 1155 1156 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1157 1158 static void 1159 probedone(struct cam_periph *periph, union ccb *done_ccb) 1160 { 1161 probe_softc *softc; 1162 struct cam_path *path; 1163 struct scsi_inquiry_data *inq_buf; 1164 u_int32_t priority; 1165 1166 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1167 1168 softc = (probe_softc *)periph->softc; 1169 path = done_ccb->ccb_h.path; 1170 priority = done_ccb->ccb_h.pinfo.priority; 1171 cam_periph_assert(periph, MA_OWNED); 1172 1173 switch (softc->action) { 1174 case PROBE_TUR: 1175 { 1176 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1177 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1178 ERESTART) { 1179 outr: 1180 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1181 cam_release_devq(path, 0, 0, 0, FALSE); 1182 return; 1183 } 1184 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1185 /* Don't wedge the queue */ 1186 xpt_release_devq(done_ccb->ccb_h.path, 1187 /*count*/1, 1188 /*run_queue*/TRUE); 1189 } 1190 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1191 xpt_release_ccb(done_ccb); 1192 xpt_schedule(periph, priority); 1193 out: 1194 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1195 cam_release_devq(path, 0, 0, 0, FALSE); 1196 cam_periph_release_locked(periph); 1197 return; 1198 } 1199 case PROBE_INQUIRY: 1200 case PROBE_FULL_INQUIRY: 1201 { 1202 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1203 u_int8_t periph_qual; 1204 1205 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1206 scsi_find_quirk(path->device); 1207 inq_buf = &path->device->inq_data; 1208 1209 periph_qual = SID_QUAL(inq_buf); 1210 1211 if (periph_qual == SID_QUAL_LU_CONNECTED || 1212 periph_qual == SID_QUAL_LU_OFFLINE) { 1213 u_int8_t len; 1214 1215 /* 1216 * We conservatively request only 1217 * SHORT_INQUIRY_LEN bytes of inquiry 1218 * information during our first try 1219 * at sending an INQUIRY. If the device 1220 * has more information to give, 1221 * perform a second request specifying 1222 * the amount of information the device 1223 * is willing to give. 1224 */ 1225 len = inq_buf->additional_length 1226 + offsetof(struct scsi_inquiry_data, 1227 additional_length) + 1; 1228 if (softc->action == PROBE_INQUIRY 1229 && len > SHORT_INQUIRY_LENGTH) { 1230 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1231 xpt_release_ccb(done_ccb); 1232 xpt_schedule(periph, priority); 1233 goto out; 1234 } 1235 1236 scsi_devise_transport(path); 1237 1238 if (path->device->lun_id == 0 && 1239 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1240 (SCSI_QUIRK(path->device)->quirks & 1241 CAM_QUIRK_NORPTLUNS) == 0) { 1242 PROBE_SET_ACTION(softc, 1243 PROBE_REPORT_LUNS); 1244 /* 1245 * Start with room for *one* lun. 1246 */ 1247 periph->path->target->rpl_size = 16; 1248 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1249 PROBE_SET_ACTION(softc, 1250 PROBE_MODE_SENSE); 1251 else 1252 PROBE_SET_ACTION(softc, 1253 PROBE_SUPPORTED_VPD_LIST); 1254 1255 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1256 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1257 xpt_acquire_device(path->device); 1258 } 1259 xpt_release_ccb(done_ccb); 1260 xpt_schedule(periph, priority); 1261 goto out; 1262 } else if (path->device->lun_id == 0 && 1263 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1264 (SCSI_QUIRK(path->device)->quirks & 1265 CAM_QUIRK_NORPTLUNS) == 0) { 1266 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1267 periph->path->target->rpl_size = 16; 1268 xpt_release_ccb(done_ccb); 1269 xpt_schedule(periph, priority); 1270 goto out; 1271 } 1272 } else if (cam_periph_error(done_ccb, 0, 1273 done_ccb->ccb_h.target_lun > 0 1274 ? SF_RETRY_UA|SF_QUIET_IR 1275 : SF_RETRY_UA) == ERESTART) { 1276 goto outr; 1277 } else { 1278 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1279 /* Don't wedge the queue */ 1280 xpt_release_devq(done_ccb->ccb_h.path, 1281 /*count*/1, /*run_queue*/TRUE); 1282 } 1283 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1284 } 1285 /* 1286 * If we get to this point, we got an error status back 1287 * from the inquiry and the error status doesn't require 1288 * automatically retrying the command. Therefore, the 1289 * inquiry failed. If we had inquiry information before 1290 * for this device, but this latest inquiry command failed, 1291 * the device has probably gone away. If this device isn't 1292 * already marked unconfigured, notify the peripheral 1293 * drivers that this device is no more. 1294 */ 1295 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1296 /* Send the async notification. */ 1297 xpt_async(AC_LOST_DEVICE, path, NULL); 1298 PROBE_SET_ACTION(softc, PROBE_INVALID); 1299 1300 xpt_release_ccb(done_ccb); 1301 break; 1302 } 1303 case PROBE_REPORT_LUNS: 1304 { 1305 struct ccb_scsiio *csio; 1306 struct scsi_report_luns_data *lp; 1307 u_int nlun, maxlun; 1308 1309 csio = &done_ccb->csio; 1310 1311 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1312 nlun = scsi_4btoul(lp->length) / 8; 1313 maxlun = (csio->dxfer_len / 8) - 1; 1314 1315 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1316 if (cam_periph_error(done_ccb, 0, 1317 done_ccb->ccb_h.target_lun > 0 ? 1318 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1319 ERESTART) { 1320 goto outr; 1321 } 1322 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1323 xpt_release_devq(done_ccb->ccb_h.path, 1, 1324 TRUE); 1325 } 1326 free(lp, M_CAMXPT); 1327 lp = NULL; 1328 } else if (nlun > maxlun) { 1329 /* 1330 * Reallocate and retry to cover all luns 1331 */ 1332 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1333 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1334 nlun)); 1335 free(lp, M_CAMXPT); 1336 path->target->rpl_size = (nlun << 3) + 8; 1337 xpt_release_ccb(done_ccb); 1338 xpt_schedule(periph, priority); 1339 goto out; 1340 } else if (nlun == 0) { 1341 /* 1342 * If there don't appear to be any luns, bail. 1343 */ 1344 free(lp, M_CAMXPT); 1345 lp = NULL; 1346 } else { 1347 lun_id_t lun; 1348 int idx; 1349 1350 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1351 ("Probe: %u lun(s) reported\n", nlun)); 1352 1353 CAM_GET_LUN(lp, 0, lun); 1354 /* 1355 * If the first lun is not lun 0, then either there 1356 * is no lun 0 in the list, or the list is unsorted. 1357 */ 1358 if (lun != 0) { 1359 for (idx = 0; idx < nlun; idx++) { 1360 CAM_GET_LUN(lp, idx, lun); 1361 if (lun == 0) { 1362 break; 1363 } 1364 } 1365 if (idx != nlun) { 1366 uint8_t tlun[8]; 1367 memcpy(tlun, 1368 lp->luns[0].lundata, 8); 1369 memcpy(lp->luns[0].lundata, 1370 lp->luns[idx].lundata, 8); 1371 memcpy(lp->luns[idx].lundata, 1372 tlun, 8); 1373 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1374 ("lun 0 in position %u\n", idx)); 1375 } 1376 } 1377 /* 1378 * If we have an old lun list, We can either 1379 * retest luns that appear to have been dropped, 1380 * or just nuke them. We'll opt for the latter. 1381 * This function will also install the new list 1382 * in the target structure. 1383 */ 1384 probe_purge_old(path, lp, softc->flags); 1385 lp = NULL; 1386 } 1387 /* The processing above should either exit via a `goto 1388 * out` or leave the `lp` variable `NULL` and (if 1389 * applicable) `free()` the storage to which it had 1390 * pointed. Assert here that is the case. 1391 */ 1392 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1393 inq_buf = &path->device->inq_data; 1394 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1395 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1396 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1397 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1398 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1399 else 1400 PROBE_SET_ACTION(softc, 1401 PROBE_SUPPORTED_VPD_LIST); 1402 xpt_release_ccb(done_ccb); 1403 xpt_schedule(periph, priority); 1404 goto out; 1405 } 1406 PROBE_SET_ACTION(softc, PROBE_INVALID); 1407 xpt_release_ccb(done_ccb); 1408 break; 1409 } 1410 case PROBE_MODE_SENSE: 1411 { 1412 struct ccb_scsiio *csio; 1413 struct scsi_mode_header_6 *mode_hdr; 1414 1415 csio = &done_ccb->csio; 1416 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1417 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1418 struct scsi_control_page *page; 1419 u_int8_t *offset; 1420 1421 offset = ((u_int8_t *)&mode_hdr[1]) 1422 + mode_hdr->blk_desc_len; 1423 page = (struct scsi_control_page *)offset; 1424 path->device->queue_flags = page->queue_flags; 1425 } else if (cam_periph_error(done_ccb, 0, 1426 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1427 goto outr; 1428 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1429 /* Don't wedge the queue */ 1430 xpt_release_devq(done_ccb->ccb_h.path, 1431 /*count*/1, /*run_queue*/TRUE); 1432 } 1433 xpt_release_ccb(done_ccb); 1434 free(mode_hdr, M_CAMXPT); 1435 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1436 xpt_schedule(periph, priority); 1437 goto out; 1438 } 1439 case PROBE_SUPPORTED_VPD_LIST: 1440 { 1441 struct ccb_scsiio *csio; 1442 struct scsi_vpd_supported_page_list *page_list; 1443 1444 csio = &done_ccb->csio; 1445 page_list = 1446 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1447 1448 if (path->device->supported_vpds != NULL) { 1449 free(path->device->supported_vpds, M_CAMXPT); 1450 path->device->supported_vpds = NULL; 1451 path->device->supported_vpds_len = 0; 1452 } 1453 1454 if (page_list == NULL) { 1455 /* 1456 * Don't process the command as it was never sent 1457 */ 1458 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1459 /* Got vpd list */ 1460 path->device->supported_vpds_len = page_list->length + 1461 SVPD_SUPPORTED_PAGES_HDR_LEN; 1462 path->device->supported_vpds = (uint8_t *)page_list; 1463 xpt_release_ccb(done_ccb); 1464 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1465 xpt_schedule(periph, priority); 1466 goto out; 1467 } else if (cam_periph_error(done_ccb, 0, 1468 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1469 goto outr; 1470 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1471 /* Don't wedge the queue */ 1472 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1473 /*run_queue*/TRUE); 1474 } 1475 1476 if (page_list) 1477 free(page_list, M_CAMXPT); 1478 /* No VPDs available, skip to device check. */ 1479 csio->data_ptr = NULL; 1480 goto probe_device_check; 1481 } 1482 case PROBE_DEVICE_ID: 1483 { 1484 struct scsi_vpd_device_id *devid; 1485 struct ccb_scsiio *csio; 1486 uint32_t length = 0; 1487 1488 csio = &done_ccb->csio; 1489 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1490 1491 /* Clean up from previous instance of this device */ 1492 if (path->device->device_id != NULL) { 1493 path->device->device_id_len = 0; 1494 free(path->device->device_id, M_CAMXPT); 1495 path->device->device_id = NULL; 1496 } 1497 1498 if (devid == NULL) { 1499 /* Don't process the command as it was never sent */ 1500 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1501 length = scsi_2btoul(devid->length); 1502 if (length != 0) { 1503 /* 1504 * NB: device_id_len is actual response 1505 * size, not buffer size. 1506 */ 1507 path->device->device_id_len = length + 1508 SVPD_DEVICE_ID_HDR_LEN; 1509 path->device->device_id = (uint8_t *)devid; 1510 } 1511 } else if (cam_periph_error(done_ccb, 0, 1512 SF_RETRY_UA) == ERESTART) { 1513 goto outr; 1514 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1515 /* Don't wedge the queue */ 1516 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1517 /*run_queue*/TRUE); 1518 } 1519 1520 /* Free the device id space if we don't use it */ 1521 if (devid && length == 0) 1522 free(devid, M_CAMXPT); 1523 xpt_release_ccb(done_ccb); 1524 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1525 xpt_schedule(periph, priority); 1526 goto out; 1527 } 1528 case PROBE_EXTENDED_INQUIRY: { 1529 struct scsi_vpd_extended_inquiry_data *ext_inq; 1530 struct ccb_scsiio *csio; 1531 int32_t length = 0; 1532 1533 csio = &done_ccb->csio; 1534 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1535 csio->data_ptr; 1536 if (path->device->ext_inq != NULL) { 1537 path->device->ext_inq_len = 0; 1538 free(path->device->ext_inq, M_CAMXPT); 1539 path->device->ext_inq = NULL; 1540 } 1541 1542 if (ext_inq == NULL) { 1543 /* Don't process the command as it was never sent */ 1544 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1545 length = scsi_2btoul(ext_inq->page_length) + 1546 __offsetof(struct scsi_vpd_extended_inquiry_data, 1547 flags1); 1548 length = min(length, sizeof(*ext_inq)); 1549 length -= csio->resid; 1550 if (length > 0) { 1551 path->device->ext_inq_len = length; 1552 path->device->ext_inq = (uint8_t *)ext_inq; 1553 } 1554 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1555 ERESTART) { 1556 goto outr; 1557 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1558 /* Don't wedge the queue */ 1559 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1560 /*run_queue*/TRUE); 1561 } 1562 1563 /* Free the device id space if we don't use it */ 1564 if (ext_inq && length <= 0) 1565 free(ext_inq, M_CAMXPT); 1566 xpt_release_ccb(done_ccb); 1567 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1568 xpt_schedule(periph, priority); 1569 goto out; 1570 } 1571 1572 probe_device_check: 1573 case PROBE_SERIAL_NUM: 1574 { 1575 struct ccb_scsiio *csio; 1576 struct scsi_vpd_unit_serial_number *serial_buf; 1577 u_int32_t priority; 1578 int changed; 1579 int have_serialnum; 1580 1581 changed = 1; 1582 have_serialnum = 0; 1583 csio = &done_ccb->csio; 1584 priority = done_ccb->ccb_h.pinfo.priority; 1585 serial_buf = 1586 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1587 1588 if (serial_buf == NULL) { 1589 /* 1590 * Don't process the command as it was never sent 1591 */ 1592 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1593 && (serial_buf->length > 0)) { 1594 have_serialnum = 1; 1595 path->device->serial_num = 1596 (u_int8_t *)malloc((serial_buf->length + 1), 1597 M_CAMXPT, M_NOWAIT); 1598 if (path->device->serial_num != NULL) { 1599 int start, slen; 1600 1601 start = strspn(serial_buf->serial_num, " "); 1602 slen = serial_buf->length - start; 1603 if (slen <= 0) { 1604 /* 1605 * SPC5r05 says that an all-space serial 1606 * number means no product serial number 1607 * is available 1608 */ 1609 slen = 0; 1610 } 1611 memcpy(path->device->serial_num, 1612 &serial_buf->serial_num[start], slen); 1613 path->device->serial_num_len = slen; 1614 path->device->serial_num[slen] = '\0'; 1615 } 1616 } else if (cam_periph_error(done_ccb, 0, 1617 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1618 goto outr; 1619 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1620 /* Don't wedge the queue */ 1621 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1622 /*run_queue*/TRUE); 1623 } 1624 1625 /* 1626 * Let's see if we have seen this device before. 1627 */ 1628 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1629 MD5_CTX context; 1630 u_int8_t digest[16]; 1631 1632 MD5Init(&context); 1633 1634 MD5Update(&context, 1635 (unsigned char *)&path->device->inq_data, 1636 sizeof(struct scsi_inquiry_data)); 1637 1638 if (have_serialnum) 1639 MD5Update(&context, path->device->serial_num, 1640 path->device->serial_num_len); 1641 1642 MD5Final(digest, &context); 1643 if (bcmp(softc->digest, digest, 16) == 0) 1644 changed = 0; 1645 1646 /* 1647 * XXX Do we need to do a TUR in order to ensure 1648 * that the device really hasn't changed??? 1649 */ 1650 if ((changed != 0) 1651 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1652 xpt_async(AC_LOST_DEVICE, path, NULL); 1653 } 1654 if (serial_buf != NULL) 1655 free(serial_buf, M_CAMXPT); 1656 1657 if (changed != 0) { 1658 /* 1659 * Now that we have all the necessary 1660 * information to safely perform transfer 1661 * negotiations... Controllers don't perform 1662 * any negotiation or tagged queuing until 1663 * after the first XPT_SET_TRAN_SETTINGS ccb is 1664 * received. So, on a new device, just retrieve 1665 * the user settings, and set them as the current 1666 * settings to set the device up. 1667 */ 1668 proberequestdefaultnegotiation(periph); 1669 xpt_release_ccb(done_ccb); 1670 1671 /* 1672 * Perform a TUR to allow the controller to 1673 * perform any necessary transfer negotiation. 1674 */ 1675 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1676 xpt_schedule(periph, priority); 1677 goto out; 1678 } 1679 xpt_release_ccb(done_ccb); 1680 break; 1681 } 1682 case PROBE_TUR_FOR_NEGOTIATION: 1683 case PROBE_DV_EXIT: 1684 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1685 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1686 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1687 goto outr; 1688 } 1689 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1690 /* Don't wedge the queue */ 1691 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1692 /*run_queue*/TRUE); 1693 } 1694 /* 1695 * Do Domain Validation for lun 0 on devices that claim 1696 * to support Synchronous Transfer modes. 1697 */ 1698 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1699 && done_ccb->ccb_h.target_lun == 0 1700 && (path->device->inq_data.flags & SID_Sync) != 0 1701 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1702 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1703 ("Begin Domain Validation\n")); 1704 path->device->flags |= CAM_DEV_IN_DV; 1705 xpt_release_ccb(done_ccb); 1706 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1707 xpt_schedule(periph, priority); 1708 goto out; 1709 } 1710 if (softc->action == PROBE_DV_EXIT) { 1711 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1712 ("Leave Domain Validation\n")); 1713 } 1714 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1715 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1716 xpt_acquire_device(path->device); 1717 } 1718 path->device->flags &= 1719 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1720 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1721 /* Inform the XPT that a new device has been found */ 1722 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1723 xpt_action(done_ccb); 1724 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1725 done_ccb); 1726 } 1727 PROBE_SET_ACTION(softc, PROBE_DONE); 1728 xpt_release_ccb(done_ccb); 1729 break; 1730 case PROBE_INQUIRY_BASIC_DV1: 1731 case PROBE_INQUIRY_BASIC_DV2: 1732 { 1733 struct scsi_inquiry_data *nbuf; 1734 struct ccb_scsiio *csio; 1735 1736 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1737 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1738 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1739 goto outr; 1740 } 1741 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1742 /* Don't wedge the queue */ 1743 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1744 /*run_queue*/TRUE); 1745 } 1746 csio = &done_ccb->csio; 1747 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1748 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1749 xpt_print(path, 1750 "inquiry data fails comparison at DV%d step\n", 1751 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1752 if (proberequestbackoff(periph, path->device)) { 1753 path->device->flags &= ~CAM_DEV_IN_DV; 1754 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1755 } else { 1756 /* give up */ 1757 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1758 } 1759 free(nbuf, M_CAMXPT); 1760 xpt_release_ccb(done_ccb); 1761 xpt_schedule(periph, priority); 1762 goto out; 1763 } 1764 free(nbuf, M_CAMXPT); 1765 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1766 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1767 xpt_release_ccb(done_ccb); 1768 xpt_schedule(periph, priority); 1769 goto out; 1770 } 1771 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1772 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1773 ("Leave Domain Validation Successfully\n")); 1774 } 1775 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1776 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1777 xpt_acquire_device(path->device); 1778 } 1779 path->device->flags &= 1780 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1781 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1782 /* Inform the XPT that a new device has been found */ 1783 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1784 xpt_action(done_ccb); 1785 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1786 done_ccb); 1787 } 1788 PROBE_SET_ACTION(softc, PROBE_DONE); 1789 xpt_release_ccb(done_ccb); 1790 break; 1791 } 1792 default: 1793 panic("probedone: invalid action state 0x%x\n", softc->action); 1794 } 1795 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1796 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1797 done_ccb->ccb_h.status = CAM_REQ_CMP; 1798 xpt_done(done_ccb); 1799 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1800 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1801 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1802 cam_release_devq(path, 0, 0, 0, FALSE); 1803 cam_periph_release_locked(periph); 1804 cam_periph_invalidate(periph); 1805 cam_periph_release_locked(periph); 1806 } else { 1807 probeschedule(periph); 1808 goto out; 1809 } 1810 } 1811 1812 static void 1813 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1814 probe_flags flags) 1815 { 1816 struct cam_path *tp; 1817 struct scsi_report_luns_data *old; 1818 u_int idx1, idx2, nlun_old, nlun_new; 1819 lun_id_t this_lun; 1820 u_int8_t *ol, *nl; 1821 1822 if (path->target == NULL) { 1823 return; 1824 } 1825 mtx_lock(&path->target->luns_mtx); 1826 old = path->target->luns; 1827 path->target->luns = new; 1828 mtx_unlock(&path->target->luns_mtx); 1829 if (old == NULL) 1830 return; 1831 nlun_old = scsi_4btoul(old->length) / 8; 1832 nlun_new = scsi_4btoul(new->length) / 8; 1833 1834 /* 1835 * We are not going to assume sorted lists. Deal. 1836 */ 1837 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1838 ol = old->luns[idx1].lundata; 1839 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1840 nl = new->luns[idx2].lundata; 1841 if (memcmp(nl, ol, 8) == 0) { 1842 break; 1843 } 1844 } 1845 if (idx2 < nlun_new) { 1846 continue; 1847 } 1848 /* 1849 * An 'old' item not in the 'new' list. 1850 * Nuke it. Except that if it is lun 0, 1851 * that would be what the probe state 1852 * machine is currently working on, 1853 * so we won't do that. 1854 */ 1855 CAM_GET_LUN(old, idx1, this_lun); 1856 if (this_lun == 0) { 1857 continue; 1858 } 1859 1860 /* 1861 * We also cannot nuke it if it is 1862 * not in a lun format we understand 1863 * and replace the LUN with a "simple" LUN 1864 * if that is all the HBA supports. 1865 */ 1866 if (!(flags & PROBE_EXTLUN)) { 1867 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1868 continue; 1869 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1870 } 1871 1872 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1873 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1874 xpt_async(AC_LOST_DEVICE, tp, NULL); 1875 xpt_free_path(tp); 1876 } 1877 } 1878 free(old, M_CAMXPT); 1879 } 1880 1881 static void 1882 probecleanup(struct cam_periph *periph) 1883 { 1884 free(periph->softc, M_CAMXPT); 1885 } 1886 1887 static void 1888 scsi_find_quirk(struct cam_ed *device) 1889 { 1890 struct scsi_quirk_entry *quirk; 1891 caddr_t match; 1892 1893 match = cam_quirkmatch((caddr_t)&device->inq_data, 1894 (caddr_t)scsi_quirk_table, 1895 nitems(scsi_quirk_table), 1896 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1897 1898 if (match == NULL) 1899 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1900 1901 quirk = (struct scsi_quirk_entry *)match; 1902 device->quirk = quirk; 1903 device->mintags = quirk->mintags; 1904 device->maxtags = quirk->maxtags; 1905 } 1906 1907 static int 1908 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1909 { 1910 int error, val; 1911 1912 val = cam_srch_hi; 1913 error = sysctl_handle_int(oidp, &val, 0, req); 1914 if (error != 0 || req->newptr == NULL) 1915 return (error); 1916 if (val == 0 || val == 1) { 1917 cam_srch_hi = val; 1918 return (0); 1919 } else { 1920 return (EINVAL); 1921 } 1922 } 1923 1924 typedef struct { 1925 union ccb *request_ccb; 1926 struct ccb_pathinq *cpi; 1927 int counter; 1928 int lunindex[0]; 1929 } scsi_scan_bus_info; 1930 1931 /* 1932 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1933 * As the scan progresses, scsi_scan_bus is used as the 1934 * callback on completion function. 1935 */ 1936 static void 1937 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1938 { 1939 struct mtx *mtx; 1940 1941 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1942 ("scsi_scan_bus\n")); 1943 switch (request_ccb->ccb_h.func_code) { 1944 case XPT_SCAN_BUS: 1945 case XPT_SCAN_TGT: 1946 { 1947 scsi_scan_bus_info *scan_info; 1948 union ccb *work_ccb, *reset_ccb; 1949 struct cam_path *path; 1950 u_int i; 1951 u_int low_target, max_target; 1952 u_int initiator_id; 1953 1954 /* Find out the characteristics of the bus */ 1955 work_ccb = xpt_alloc_ccb_nowait(); 1956 if (work_ccb == NULL) { 1957 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1958 xpt_done(request_ccb); 1959 return; 1960 } 1961 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1962 request_ccb->ccb_h.pinfo.priority); 1963 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1964 xpt_action(work_ccb); 1965 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1966 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1967 xpt_free_ccb(work_ccb); 1968 xpt_done(request_ccb); 1969 return; 1970 } 1971 1972 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1973 /* 1974 * Can't scan the bus on an adapter that 1975 * cannot perform the initiator role. 1976 */ 1977 request_ccb->ccb_h.status = CAM_REQ_CMP; 1978 xpt_free_ccb(work_ccb); 1979 xpt_done(request_ccb); 1980 return; 1981 } 1982 1983 /* We may need to reset bus first, if we haven't done it yet. */ 1984 if ((work_ccb->cpi.hba_inquiry & 1985 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1986 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1987 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1988 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1989 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1990 CAM_PRIORITY_NONE); 1991 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1992 xpt_action(reset_ccb); 1993 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1994 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1995 xpt_free_ccb(reset_ccb); 1996 xpt_free_ccb(work_ccb); 1997 xpt_done(request_ccb); 1998 return; 1999 } 2000 xpt_free_ccb(reset_ccb); 2001 } 2002 2003 /* Save some state for use while we probe for devices */ 2004 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2005 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2006 if (scan_info == NULL) { 2007 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2008 xpt_free_ccb(work_ccb); 2009 xpt_done(request_ccb); 2010 return; 2011 } 2012 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2013 ("SCAN start for %p\n", scan_info)); 2014 scan_info->request_ccb = request_ccb; 2015 scan_info->cpi = &work_ccb->cpi; 2016 2017 /* Cache on our stack so we can work asynchronously */ 2018 max_target = scan_info->cpi->max_target; 2019 low_target = 0; 2020 initiator_id = scan_info->cpi->initiator_id; 2021 2022 /* 2023 * We can scan all targets in parallel, or do it sequentially. 2024 */ 2025 2026 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2027 max_target = low_target = request_ccb->ccb_h.target_id; 2028 scan_info->counter = 0; 2029 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2030 max_target = 0; 2031 scan_info->counter = 0; 2032 } else { 2033 scan_info->counter = scan_info->cpi->max_target + 1; 2034 if (scan_info->cpi->initiator_id < scan_info->counter) { 2035 scan_info->counter--; 2036 } 2037 } 2038 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2039 mtx_unlock(mtx); 2040 2041 for (i = low_target; i <= max_target; i++) { 2042 cam_status status; 2043 if (i == initiator_id) 2044 continue; 2045 2046 status = xpt_create_path(&path, NULL, 2047 request_ccb->ccb_h.path_id, 2048 i, 0); 2049 if (status != CAM_REQ_CMP) { 2050 printf("scsi_scan_bus: xpt_create_path failed" 2051 " with status %#x, bus scan halted\n", 2052 status); 2053 free(scan_info, M_CAMXPT); 2054 request_ccb->ccb_h.status = status; 2055 xpt_free_ccb(work_ccb); 2056 xpt_done(request_ccb); 2057 break; 2058 } 2059 work_ccb = xpt_alloc_ccb_nowait(); 2060 if (work_ccb == NULL) { 2061 xpt_free_ccb((union ccb *)scan_info->cpi); 2062 free(scan_info, M_CAMXPT); 2063 xpt_free_path(path); 2064 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2065 xpt_done(request_ccb); 2066 break; 2067 } 2068 xpt_setup_ccb(&work_ccb->ccb_h, path, 2069 request_ccb->ccb_h.pinfo.priority); 2070 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2071 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2072 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2073 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2074 work_ccb->crcn.flags = request_ccb->crcn.flags; 2075 xpt_action(work_ccb); 2076 } 2077 2078 mtx_lock(mtx); 2079 break; 2080 } 2081 case XPT_SCAN_LUN: 2082 { 2083 cam_status status; 2084 struct cam_path *path, *oldpath; 2085 scsi_scan_bus_info *scan_info; 2086 struct cam_et *target; 2087 struct cam_ed *device, *nextdev; 2088 int next_target; 2089 path_id_t path_id; 2090 target_id_t target_id; 2091 lun_id_t lun_id; 2092 2093 oldpath = request_ccb->ccb_h.path; 2094 2095 status = cam_ccb_status(request_ccb); 2096 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2097 path_id = request_ccb->ccb_h.path_id; 2098 target_id = request_ccb->ccb_h.target_id; 2099 lun_id = request_ccb->ccb_h.target_lun; 2100 target = request_ccb->ccb_h.path->target; 2101 next_target = 1; 2102 2103 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2104 mtx_lock(mtx); 2105 mtx_lock(&target->luns_mtx); 2106 if (target->luns) { 2107 lun_id_t first; 2108 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2109 2110 /* 2111 * Make sure we skip over lun 0 if it's the first member 2112 * of the list as we've actually just finished probing 2113 * it. 2114 */ 2115 CAM_GET_LUN(target->luns, 0, first); 2116 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2117 scan_info->lunindex[target_id]++; 2118 } 2119 2120 /* 2121 * Skip any LUNs that the HBA can't deal with. 2122 */ 2123 while (scan_info->lunindex[target_id] < nluns) { 2124 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2125 CAM_GET_LUN(target->luns, 2126 scan_info->lunindex[target_id], 2127 lun_id); 2128 break; 2129 } 2130 2131 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2132 scan_info->lunindex[target_id])) { 2133 CAM_GET_SIMPLE_LUN(target->luns, 2134 scan_info->lunindex[target_id], 2135 lun_id); 2136 break; 2137 } 2138 2139 scan_info->lunindex[target_id]++; 2140 } 2141 2142 if (scan_info->lunindex[target_id] < nluns) { 2143 mtx_unlock(&target->luns_mtx); 2144 next_target = 0; 2145 CAM_DEBUG(request_ccb->ccb_h.path, 2146 CAM_DEBUG_PROBE, 2147 ("next lun to try at index %u is %jx\n", 2148 scan_info->lunindex[target_id], 2149 (uintmax_t)lun_id)); 2150 scan_info->lunindex[target_id]++; 2151 } else { 2152 mtx_unlock(&target->luns_mtx); 2153 /* We're done with scanning all luns. */ 2154 } 2155 } else { 2156 mtx_unlock(&target->luns_mtx); 2157 device = request_ccb->ccb_h.path->device; 2158 /* Continue sequential LUN scan if: */ 2159 /* -- we have more LUNs that need recheck */ 2160 mtx_lock(&target->bus->eb_mtx); 2161 nextdev = device; 2162 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2163 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2164 break; 2165 mtx_unlock(&target->bus->eb_mtx); 2166 if (nextdev != NULL) { 2167 next_target = 0; 2168 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2169 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2170 next_target = 1; 2171 /* -- this LUN is connected and its SCSI version 2172 * allows more LUNs. */ 2173 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2174 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2175 CAN_SRCH_HI_DENSE(device)) 2176 next_target = 0; 2177 /* -- this LUN is disconnected, its SCSI version 2178 * allows more LUNs and we guess they may be. */ 2179 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2180 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2181 CAN_SRCH_HI_SPARSE(device)) 2182 next_target = 0; 2183 } 2184 if (next_target == 0) { 2185 lun_id++; 2186 if (lun_id > scan_info->cpi->max_lun) 2187 next_target = 1; 2188 } 2189 } 2190 2191 /* 2192 * Check to see if we scan any further luns. 2193 */ 2194 if (next_target) { 2195 int done; 2196 2197 /* 2198 * Free the current request path- we're done with it. 2199 */ 2200 xpt_free_path(oldpath); 2201 hop_again: 2202 done = 0; 2203 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2204 done = 1; 2205 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2206 scan_info->counter++; 2207 if (scan_info->counter == 2208 scan_info->cpi->initiator_id) { 2209 scan_info->counter++; 2210 } 2211 if (scan_info->counter >= 2212 scan_info->cpi->max_target+1) { 2213 done = 1; 2214 } 2215 } else { 2216 scan_info->counter--; 2217 if (scan_info->counter == 0) { 2218 done = 1; 2219 } 2220 } 2221 if (done) { 2222 mtx_unlock(mtx); 2223 xpt_free_ccb(request_ccb); 2224 xpt_free_ccb((union ccb *)scan_info->cpi); 2225 request_ccb = scan_info->request_ccb; 2226 CAM_DEBUG(request_ccb->ccb_h.path, 2227 CAM_DEBUG_TRACE, 2228 ("SCAN done for %p\n", scan_info)); 2229 free(scan_info, M_CAMXPT); 2230 request_ccb->ccb_h.status = CAM_REQ_CMP; 2231 xpt_done(request_ccb); 2232 break; 2233 } 2234 2235 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2236 mtx_unlock(mtx); 2237 xpt_free_ccb(request_ccb); 2238 break; 2239 } 2240 status = xpt_create_path(&path, NULL, 2241 scan_info->request_ccb->ccb_h.path_id, 2242 scan_info->counter, 0); 2243 if (status != CAM_REQ_CMP) { 2244 mtx_unlock(mtx); 2245 printf("scsi_scan_bus: xpt_create_path failed" 2246 " with status %#x, bus scan halted\n", 2247 status); 2248 xpt_free_ccb(request_ccb); 2249 xpt_free_ccb((union ccb *)scan_info->cpi); 2250 request_ccb = scan_info->request_ccb; 2251 free(scan_info, M_CAMXPT); 2252 request_ccb->ccb_h.status = status; 2253 xpt_done(request_ccb); 2254 break; 2255 } 2256 xpt_setup_ccb(&request_ccb->ccb_h, path, 2257 request_ccb->ccb_h.pinfo.priority); 2258 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2259 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2260 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2261 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2262 request_ccb->crcn.flags = 2263 scan_info->request_ccb->crcn.flags; 2264 } else { 2265 status = xpt_create_path(&path, NULL, 2266 path_id, target_id, lun_id); 2267 /* 2268 * Free the old request path- we're done with it. We 2269 * do this *after* creating the new path so that 2270 * we don't remove a target that has our lun list 2271 * in the case that lun 0 is not present. 2272 */ 2273 xpt_free_path(oldpath); 2274 if (status != CAM_REQ_CMP) { 2275 printf("scsi_scan_bus: xpt_create_path failed " 2276 "with status %#x, halting LUN scan\n", 2277 status); 2278 goto hop_again; 2279 } 2280 xpt_setup_ccb(&request_ccb->ccb_h, path, 2281 request_ccb->ccb_h.pinfo.priority); 2282 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2283 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2284 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2285 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2286 request_ccb->crcn.flags = 2287 scan_info->request_ccb->crcn.flags; 2288 } 2289 mtx_unlock(mtx); 2290 xpt_action(request_ccb); 2291 break; 2292 } 2293 default: 2294 break; 2295 } 2296 } 2297 2298 static void 2299 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2300 cam_flags flags, union ccb *request_ccb) 2301 { 2302 struct ccb_pathinq cpi; 2303 cam_status status; 2304 struct cam_path *new_path; 2305 struct cam_periph *old_periph; 2306 int lock; 2307 2308 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2309 2310 memset(&cpi, 0, sizeof(cpi)); 2311 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2312 cpi.ccb_h.func_code = XPT_PATH_INQ; 2313 xpt_action((union ccb *)&cpi); 2314 2315 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2316 if (request_ccb != NULL) { 2317 request_ccb->ccb_h.status = cpi.ccb_h.status; 2318 xpt_done(request_ccb); 2319 } 2320 return; 2321 } 2322 2323 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2324 /* 2325 * Can't scan the bus on an adapter that 2326 * cannot perform the initiator role. 2327 */ 2328 if (request_ccb != NULL) { 2329 request_ccb->ccb_h.status = CAM_REQ_CMP; 2330 xpt_done(request_ccb); 2331 } 2332 return; 2333 } 2334 2335 if (request_ccb == NULL) { 2336 request_ccb = xpt_alloc_ccb_nowait(); 2337 if (request_ccb == NULL) { 2338 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2339 "can't continue\n"); 2340 return; 2341 } 2342 status = xpt_create_path(&new_path, NULL, 2343 path->bus->path_id, 2344 path->target->target_id, 2345 path->device->lun_id); 2346 if (status != CAM_REQ_CMP) { 2347 xpt_print(path, "scsi_scan_lun: can't create path, " 2348 "can't continue\n"); 2349 xpt_free_ccb(request_ccb); 2350 return; 2351 } 2352 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2353 request_ccb->ccb_h.cbfcnp = xptscandone; 2354 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2355 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2356 request_ccb->crcn.flags = flags; 2357 } 2358 2359 lock = (xpt_path_owned(path) == 0); 2360 if (lock) 2361 xpt_path_lock(path); 2362 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2363 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2364 probe_softc *softc; 2365 2366 softc = (probe_softc *)old_periph->softc; 2367 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2368 &request_ccb->ccb_h, periph_links.tqe); 2369 } else { 2370 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2371 xpt_done(request_ccb); 2372 } 2373 } else { 2374 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2375 probestart, "probe", 2376 CAM_PERIPH_BIO, 2377 request_ccb->ccb_h.path, NULL, 0, 2378 request_ccb); 2379 2380 if (status != CAM_REQ_CMP) { 2381 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2382 "returned an error, can't continue probe\n"); 2383 request_ccb->ccb_h.status = status; 2384 xpt_done(request_ccb); 2385 } 2386 } 2387 if (lock) 2388 xpt_path_unlock(path); 2389 } 2390 2391 static void 2392 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2393 { 2394 2395 xpt_free_path(done_ccb->ccb_h.path); 2396 xpt_free_ccb(done_ccb); 2397 } 2398 2399 static struct cam_ed * 2400 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2401 { 2402 struct scsi_quirk_entry *quirk; 2403 struct cam_ed *device; 2404 2405 device = xpt_alloc_device(bus, target, lun_id); 2406 if (device == NULL) 2407 return (NULL); 2408 2409 /* 2410 * Take the default quirk entry until we have inquiry 2411 * data and can determine a better quirk to use. 2412 */ 2413 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2414 device->quirk = (void *)quirk; 2415 device->mintags = quirk->mintags; 2416 device->maxtags = quirk->maxtags; 2417 bzero(&device->inq_data, sizeof(device->inq_data)); 2418 device->inq_flags = 0; 2419 device->queue_flags = 0; 2420 device->serial_num = NULL; 2421 device->serial_num_len = 0; 2422 device->device_id = NULL; 2423 device->device_id_len = 0; 2424 device->supported_vpds = NULL; 2425 device->supported_vpds_len = 0; 2426 return (device); 2427 } 2428 2429 static void 2430 scsi_devise_transport(struct cam_path *path) 2431 { 2432 struct ccb_pathinq cpi; 2433 struct ccb_trans_settings cts; 2434 struct scsi_inquiry_data *inq_buf; 2435 2436 /* Get transport information from the SIM */ 2437 memset(&cpi, 0, sizeof(cpi)); 2438 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2439 cpi.ccb_h.func_code = XPT_PATH_INQ; 2440 xpt_action((union ccb *)&cpi); 2441 2442 inq_buf = NULL; 2443 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2444 inq_buf = &path->device->inq_data; 2445 path->device->protocol = PROTO_SCSI; 2446 path->device->protocol_version = 2447 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2448 path->device->transport = cpi.transport; 2449 path->device->transport_version = cpi.transport_version; 2450 2451 /* 2452 * Any device not using SPI3 features should 2453 * be considered SPI2 or lower. 2454 */ 2455 if (inq_buf != NULL) { 2456 if (path->device->transport == XPORT_SPI 2457 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2458 && path->device->transport_version > 2) 2459 path->device->transport_version = 2; 2460 } else { 2461 struct cam_ed* otherdev; 2462 2463 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2464 otherdev != NULL; 2465 otherdev = TAILQ_NEXT(otherdev, links)) { 2466 if (otherdev != path->device) 2467 break; 2468 } 2469 2470 if (otherdev != NULL) { 2471 /* 2472 * Initially assume the same versioning as 2473 * prior luns for this target. 2474 */ 2475 path->device->protocol_version = 2476 otherdev->protocol_version; 2477 path->device->transport_version = 2478 otherdev->transport_version; 2479 } else { 2480 /* Until we know better, opt for safety */ 2481 path->device->protocol_version = 2; 2482 if (path->device->transport == XPORT_SPI) 2483 path->device->transport_version = 2; 2484 else 2485 path->device->transport_version = 0; 2486 } 2487 } 2488 2489 /* 2490 * XXX 2491 * For a device compliant with SPC-2 we should be able 2492 * to determine the transport version supported by 2493 * scrutinizing the version descriptors in the 2494 * inquiry buffer. 2495 */ 2496 2497 /* Tell the controller what we think */ 2498 memset(&cts, 0, sizeof(cts)); 2499 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2500 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2501 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2502 cts.transport = path->device->transport; 2503 cts.transport_version = path->device->transport_version; 2504 cts.protocol = path->device->protocol; 2505 cts.protocol_version = path->device->protocol_version; 2506 cts.proto_specific.valid = 0; 2507 cts.xport_specific.valid = 0; 2508 xpt_action((union ccb *)&cts); 2509 } 2510 2511 static void 2512 scsi_dev_advinfo(union ccb *start_ccb) 2513 { 2514 struct cam_ed *device; 2515 struct ccb_dev_advinfo *cdai; 2516 off_t amt; 2517 2518 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2519 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2520 device = start_ccb->ccb_h.path->device; 2521 cdai = &start_ccb->cdai; 2522 switch(cdai->buftype) { 2523 case CDAI_TYPE_SCSI_DEVID: 2524 if (cdai->flags & CDAI_FLAG_STORE) 2525 return; 2526 cdai->provsiz = device->device_id_len; 2527 if (device->device_id_len == 0) 2528 break; 2529 amt = device->device_id_len; 2530 if (cdai->provsiz > cdai->bufsiz) 2531 amt = cdai->bufsiz; 2532 memcpy(cdai->buf, device->device_id, amt); 2533 break; 2534 case CDAI_TYPE_SERIAL_NUM: 2535 if (cdai->flags & CDAI_FLAG_STORE) 2536 return; 2537 cdai->provsiz = device->serial_num_len; 2538 if (device->serial_num_len == 0) 2539 break; 2540 amt = device->serial_num_len; 2541 if (cdai->provsiz > cdai->bufsiz) 2542 amt = cdai->bufsiz; 2543 memcpy(cdai->buf, device->serial_num, amt); 2544 break; 2545 case CDAI_TYPE_PHYS_PATH: 2546 if (cdai->flags & CDAI_FLAG_STORE) { 2547 if (device->physpath != NULL) { 2548 free(device->physpath, M_CAMXPT); 2549 device->physpath = NULL; 2550 device->physpath_len = 0; 2551 } 2552 /* Clear existing buffer if zero length */ 2553 if (cdai->bufsiz == 0) 2554 break; 2555 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2556 if (device->physpath == NULL) { 2557 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2558 return; 2559 } 2560 device->physpath_len = cdai->bufsiz; 2561 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2562 } else { 2563 cdai->provsiz = device->physpath_len; 2564 if (device->physpath_len == 0) 2565 break; 2566 amt = device->physpath_len; 2567 if (cdai->provsiz > cdai->bufsiz) 2568 amt = cdai->bufsiz; 2569 memcpy(cdai->buf, device->physpath, amt); 2570 } 2571 break; 2572 case CDAI_TYPE_RCAPLONG: 2573 if (cdai->flags & CDAI_FLAG_STORE) { 2574 if (device->rcap_buf != NULL) { 2575 free(device->rcap_buf, M_CAMXPT); 2576 device->rcap_buf = NULL; 2577 } 2578 2579 device->rcap_len = cdai->bufsiz; 2580 /* Clear existing buffer if zero length */ 2581 if (cdai->bufsiz == 0) 2582 break; 2583 2584 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2585 M_NOWAIT); 2586 if (device->rcap_buf == NULL) { 2587 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2588 return; 2589 } 2590 2591 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2592 } else { 2593 cdai->provsiz = device->rcap_len; 2594 if (device->rcap_len == 0) 2595 break; 2596 amt = device->rcap_len; 2597 if (cdai->provsiz > cdai->bufsiz) 2598 amt = cdai->bufsiz; 2599 memcpy(cdai->buf, device->rcap_buf, amt); 2600 } 2601 break; 2602 case CDAI_TYPE_EXT_INQ: 2603 /* 2604 * We fetch extended inquiry data during probe, if 2605 * available. We don't allow changing it. 2606 */ 2607 if (cdai->flags & CDAI_FLAG_STORE) 2608 return; 2609 cdai->provsiz = device->ext_inq_len; 2610 if (device->ext_inq_len == 0) 2611 break; 2612 amt = device->ext_inq_len; 2613 if (cdai->provsiz > cdai->bufsiz) 2614 amt = cdai->bufsiz; 2615 memcpy(cdai->buf, device->ext_inq, amt); 2616 break; 2617 default: 2618 return; 2619 } 2620 start_ccb->ccb_h.status = CAM_REQ_CMP; 2621 2622 if (cdai->flags & CDAI_FLAG_STORE) { 2623 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2624 (void *)(uintptr_t)cdai->buftype); 2625 } 2626 } 2627 2628 static void 2629 scsi_action(union ccb *start_ccb) 2630 { 2631 2632 switch (start_ccb->ccb_h.func_code) { 2633 case XPT_SET_TRAN_SETTINGS: 2634 { 2635 scsi_set_transfer_settings(&start_ccb->cts, 2636 start_ccb->ccb_h.path, 2637 /*async_update*/FALSE); 2638 break; 2639 } 2640 case XPT_SCAN_BUS: 2641 case XPT_SCAN_TGT: 2642 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2643 break; 2644 case XPT_SCAN_LUN: 2645 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2646 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2647 start_ccb); 2648 break; 2649 case XPT_DEV_ADVINFO: 2650 { 2651 scsi_dev_advinfo(start_ccb); 2652 break; 2653 } 2654 default: 2655 xpt_action_default(start_ccb); 2656 break; 2657 } 2658 } 2659 2660 static void 2661 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2662 int async_update) 2663 { 2664 struct ccb_pathinq cpi; 2665 struct ccb_trans_settings cur_cts; 2666 struct ccb_trans_settings_scsi *scsi; 2667 struct ccb_trans_settings_scsi *cur_scsi; 2668 struct scsi_inquiry_data *inq_data; 2669 struct cam_ed *device; 2670 2671 if (path == NULL || (device = path->device) == NULL) { 2672 cts->ccb_h.status = CAM_PATH_INVALID; 2673 xpt_done((union ccb *)cts); 2674 return; 2675 } 2676 2677 if (cts->protocol == PROTO_UNKNOWN 2678 || cts->protocol == PROTO_UNSPECIFIED) { 2679 cts->protocol = device->protocol; 2680 cts->protocol_version = device->protocol_version; 2681 } 2682 2683 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2684 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2685 cts->protocol_version = device->protocol_version; 2686 2687 if (cts->protocol != device->protocol) { 2688 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2689 cts->protocol, device->protocol); 2690 cts->protocol = device->protocol; 2691 } 2692 2693 if (cts->protocol_version > device->protocol_version) { 2694 if (bootverbose) { 2695 xpt_print(path, "Down reving Protocol " 2696 "Version from %d to %d?\n", cts->protocol_version, 2697 device->protocol_version); 2698 } 2699 cts->protocol_version = device->protocol_version; 2700 } 2701 2702 if (cts->transport == XPORT_UNKNOWN 2703 || cts->transport == XPORT_UNSPECIFIED) { 2704 cts->transport = device->transport; 2705 cts->transport_version = device->transport_version; 2706 } 2707 2708 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2709 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2710 cts->transport_version = device->transport_version; 2711 2712 if (cts->transport != device->transport) { 2713 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2714 cts->transport, device->transport); 2715 cts->transport = device->transport; 2716 } 2717 2718 if (cts->transport_version > device->transport_version) { 2719 if (bootverbose) { 2720 xpt_print(path, "Down reving Transport " 2721 "Version from %d to %d?\n", cts->transport_version, 2722 device->transport_version); 2723 } 2724 cts->transport_version = device->transport_version; 2725 } 2726 2727 /* 2728 * Nothing more of interest to do unless 2729 * this is a device connected via the 2730 * SCSI protocol. 2731 */ 2732 if (cts->protocol != PROTO_SCSI) { 2733 if (async_update == FALSE) 2734 xpt_action_default((union ccb *)cts); 2735 return; 2736 } 2737 2738 inq_data = &device->inq_data; 2739 scsi = &cts->proto_specific.scsi; 2740 memset(&cpi, 0, sizeof(cpi)); 2741 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2742 cpi.ccb_h.func_code = XPT_PATH_INQ; 2743 xpt_action((union ccb *)&cpi); 2744 2745 /* SCSI specific sanity checking */ 2746 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2747 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2748 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2749 || (device->mintags == 0)) { 2750 /* 2751 * Can't tag on hardware that doesn't support tags, 2752 * doesn't have it enabled, or has broken tag support. 2753 */ 2754 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2755 } 2756 2757 if (async_update == FALSE) { 2758 /* 2759 * Perform sanity checking against what the 2760 * controller and device can do. 2761 */ 2762 memset(&cur_cts, 0, sizeof(cur_cts)); 2763 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2764 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2765 cur_cts.type = cts->type; 2766 xpt_action((union ccb *)&cur_cts); 2767 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2768 return; 2769 } 2770 cur_scsi = &cur_cts.proto_specific.scsi; 2771 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2772 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2773 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2774 } 2775 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2776 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2777 } 2778 2779 /* SPI specific sanity checking */ 2780 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2781 u_int spi3caps; 2782 struct ccb_trans_settings_spi *spi; 2783 struct ccb_trans_settings_spi *cur_spi; 2784 2785 spi = &cts->xport_specific.spi; 2786 2787 cur_spi = &cur_cts.xport_specific.spi; 2788 2789 /* Fill in any gaps in what the user gave us */ 2790 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2791 spi->sync_period = cur_spi->sync_period; 2792 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2793 spi->sync_period = 0; 2794 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2795 spi->sync_offset = cur_spi->sync_offset; 2796 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2797 spi->sync_offset = 0; 2798 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2799 spi->ppr_options = cur_spi->ppr_options; 2800 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2801 spi->ppr_options = 0; 2802 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2803 spi->bus_width = cur_spi->bus_width; 2804 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2805 spi->bus_width = 0; 2806 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2807 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2808 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2809 } 2810 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2811 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2812 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2813 && (inq_data->flags & SID_Sync) == 0 2814 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2815 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2816 /* Force async */ 2817 spi->sync_period = 0; 2818 spi->sync_offset = 0; 2819 } 2820 2821 switch (spi->bus_width) { 2822 case MSG_EXT_WDTR_BUS_32_BIT: 2823 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2824 || (inq_data->flags & SID_WBus32) != 0 2825 || cts->type == CTS_TYPE_USER_SETTINGS) 2826 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2827 break; 2828 /* Fall Through to 16-bit */ 2829 case MSG_EXT_WDTR_BUS_16_BIT: 2830 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2831 || (inq_data->flags & SID_WBus16) != 0 2832 || cts->type == CTS_TYPE_USER_SETTINGS) 2833 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2834 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2835 break; 2836 } 2837 /* Fall Through to 8-bit */ 2838 default: /* New bus width?? */ 2839 case MSG_EXT_WDTR_BUS_8_BIT: 2840 /* All targets can do this */ 2841 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2842 break; 2843 } 2844 2845 spi3caps = cpi.xport_specific.spi.ppr_options; 2846 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2847 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2848 spi3caps &= inq_data->spi3data; 2849 2850 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2851 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2852 2853 if ((spi3caps & SID_SPI_IUS) == 0) 2854 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2855 2856 if ((spi3caps & SID_SPI_QAS) == 0) 2857 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2858 2859 /* No SPI Transfer settings are allowed unless we are wide */ 2860 if (spi->bus_width == 0) 2861 spi->ppr_options = 0; 2862 2863 if ((spi->valid & CTS_SPI_VALID_DISC) 2864 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2865 /* 2866 * Can't tag queue without disconnection. 2867 */ 2868 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2869 scsi->valid |= CTS_SCSI_VALID_TQ; 2870 } 2871 2872 /* 2873 * If we are currently performing tagged transactions to 2874 * this device and want to change its negotiation parameters, 2875 * go non-tagged for a bit to give the controller a chance to 2876 * negotiate unhampered by tag messages. 2877 */ 2878 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2879 && (device->inq_flags & SID_CmdQue) != 0 2880 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2881 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2882 CTS_SPI_VALID_SYNC_OFFSET| 2883 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2884 scsi_toggle_tags(path); 2885 } 2886 2887 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2888 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2889 int device_tagenb; 2890 2891 /* 2892 * If we are transitioning from tags to no-tags or 2893 * vice-versa, we need to carefully freeze and restart 2894 * the queue so that we don't overlap tagged and non-tagged 2895 * commands. We also temporarily stop tags if there is 2896 * a change in transfer negotiation settings to allow 2897 * "tag-less" negotiation. 2898 */ 2899 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2900 || (device->inq_flags & SID_CmdQue) != 0) 2901 device_tagenb = TRUE; 2902 else 2903 device_tagenb = FALSE; 2904 2905 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2906 && device_tagenb == FALSE) 2907 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2908 && device_tagenb == TRUE)) { 2909 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2910 /* 2911 * Delay change to use tags until after a 2912 * few commands have gone to this device so 2913 * the controller has time to perform transfer 2914 * negotiations without tagged messages getting 2915 * in the way. 2916 */ 2917 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2918 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2919 } else { 2920 xpt_stop_tags(path); 2921 } 2922 } 2923 } 2924 if (async_update == FALSE) 2925 xpt_action_default((union ccb *)cts); 2926 } 2927 2928 static void 2929 scsi_toggle_tags(struct cam_path *path) 2930 { 2931 struct cam_ed *dev; 2932 2933 /* 2934 * Give controllers a chance to renegotiate 2935 * before starting tag operations. We 2936 * "toggle" tagged queuing off then on 2937 * which causes the tag enable command delay 2938 * counter to come into effect. 2939 */ 2940 dev = path->device; 2941 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2942 || ((dev->inq_flags & SID_CmdQue) != 0 2943 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2944 struct ccb_trans_settings cts; 2945 2946 memset(&cts, 0, sizeof(cts)); 2947 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2948 cts.protocol = PROTO_SCSI; 2949 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2950 cts.transport = XPORT_UNSPECIFIED; 2951 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2952 cts.proto_specific.scsi.flags = 0; 2953 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2954 scsi_set_transfer_settings(&cts, path, 2955 /*async_update*/TRUE); 2956 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2957 scsi_set_transfer_settings(&cts, path, 2958 /*async_update*/TRUE); 2959 } 2960 } 2961 2962 /* 2963 * Handle any per-device event notifications that require action by the XPT. 2964 */ 2965 static void 2966 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2967 struct cam_ed *device, void *async_arg) 2968 { 2969 cam_status status; 2970 struct cam_path newpath; 2971 2972 /* 2973 * We only need to handle events for real devices. 2974 */ 2975 if (target->target_id == CAM_TARGET_WILDCARD 2976 || device->lun_id == CAM_LUN_WILDCARD) 2977 return; 2978 2979 /* 2980 * We need our own path with wildcards expanded to 2981 * handle certain types of events. 2982 */ 2983 if ((async_code == AC_SENT_BDR) 2984 || (async_code == AC_BUS_RESET) 2985 || (async_code == AC_INQ_CHANGED)) 2986 status = xpt_compile_path(&newpath, NULL, 2987 bus->path_id, 2988 target->target_id, 2989 device->lun_id); 2990 else 2991 status = CAM_REQ_CMP_ERR; 2992 2993 if (status == CAM_REQ_CMP) { 2994 /* 2995 * Allow transfer negotiation to occur in a 2996 * tag free environment and after settle delay. 2997 */ 2998 if (async_code == AC_SENT_BDR 2999 || async_code == AC_BUS_RESET) { 3000 cam_freeze_devq(&newpath); 3001 cam_release_devq(&newpath, 3002 RELSIM_RELEASE_AFTER_TIMEOUT, 3003 /*reduction*/0, 3004 /*timeout*/scsi_delay, 3005 /*getcount_only*/0); 3006 scsi_toggle_tags(&newpath); 3007 } 3008 3009 if (async_code == AC_INQ_CHANGED) { 3010 /* 3011 * We've sent a start unit command, or 3012 * something similar to a device that 3013 * may have caused its inquiry data to 3014 * change. So we re-scan the device to 3015 * refresh the inquiry data for it. 3016 */ 3017 scsi_scan_lun(newpath.periph, &newpath, 3018 CAM_EXPECT_INQ_CHANGE, NULL); 3019 } 3020 xpt_release_path(&newpath); 3021 } else if (async_code == AC_LOST_DEVICE && 3022 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3023 device->flags |= CAM_DEV_UNCONFIGURED; 3024 xpt_release_device(device); 3025 } else if (async_code == AC_TRANSFER_NEG) { 3026 struct ccb_trans_settings *settings; 3027 struct cam_path path; 3028 3029 settings = (struct ccb_trans_settings *)async_arg; 3030 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3031 device->lun_id); 3032 scsi_set_transfer_settings(settings, &path, 3033 /*async_update*/TRUE); 3034 xpt_release_path(&path); 3035 } 3036 } 3037 3038 static void 3039 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3040 { 3041 struct ccb_pathinq cpi; 3042 struct cam_path *path = periph->path; 3043 3044 cam_periph_assert(periph, MA_OWNED); 3045 3046 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3047 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3048 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3049 xpt_action((union ccb*)cts); 3050 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3051 return; 3052 3053 /* Ask the SIM for its base transfer speed */ 3054 memset(&cpi, 0, sizeof(cpi)); 3055 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3056 cpi.ccb_h.func_code = XPT_PATH_INQ; 3057 xpt_action((union ccb *)&cpi); 3058 3059 /* Report connection speed */ 3060 *speed = cpi.base_transfer_speed; 3061 *freq = 0; 3062 3063 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3064 struct ccb_trans_settings_spi *spi = 3065 &cts->xport_specific.spi; 3066 3067 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3068 && spi->sync_offset != 0) { 3069 *freq = scsi_calc_syncsrate(spi->sync_period); 3070 *speed = *freq; 3071 } 3072 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3073 *speed *= (0x01 << spi->bus_width); 3074 } 3075 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3076 struct ccb_trans_settings_fc *fc = 3077 &cts->xport_specific.fc; 3078 3079 if (fc->valid & CTS_FC_VALID_SPEED) 3080 *speed = fc->bitrate; 3081 } 3082 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3083 struct ccb_trans_settings_sas *sas = 3084 &cts->xport_specific.sas; 3085 3086 if (sas->valid & CTS_SAS_VALID_SPEED) 3087 *speed = sas->bitrate; 3088 } 3089 } 3090 3091 static void 3092 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3093 { 3094 struct ccb_trans_settings cts; 3095 u_int speed, freq, mb; 3096 3097 memset(&cts, 0, sizeof(cts)); 3098 _scsi_announce_periph(periph, &speed, &freq, &cts); 3099 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3100 return; 3101 3102 mb = speed / 1000; 3103 if (mb > 0) 3104 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3105 periph->periph_name, periph->unit_number, 3106 mb, speed % 1000); 3107 else 3108 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3109 periph->unit_number, speed); 3110 /* Report additional information about SPI connections */ 3111 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3112 struct ccb_trans_settings_spi *spi; 3113 3114 spi = &cts.xport_specific.spi; 3115 if (freq != 0) { 3116 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3117 freq % 1000, 3118 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3119 ? " DT" : "", 3120 spi->sync_offset); 3121 } 3122 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3123 && spi->bus_width > 0) { 3124 if (freq != 0) { 3125 sbuf_printf(sb, ", "); 3126 } else { 3127 sbuf_printf(sb, " ("); 3128 } 3129 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3130 } else if (freq != 0) { 3131 sbuf_printf(sb, ")"); 3132 } 3133 } 3134 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3135 struct ccb_trans_settings_fc *fc; 3136 3137 fc = &cts.xport_specific.fc; 3138 if (fc->valid & CTS_FC_VALID_WWNN) 3139 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3140 if (fc->valid & CTS_FC_VALID_WWPN) 3141 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3142 if (fc->valid & CTS_FC_VALID_PORT) 3143 sbuf_printf(sb, " PortID 0x%x", fc->port); 3144 } 3145 sbuf_printf(sb, "\n"); 3146 } 3147 3148 static void 3149 scsi_announce_periph(struct cam_periph *periph) 3150 { 3151 struct ccb_trans_settings cts; 3152 u_int speed, freq, mb; 3153 3154 _scsi_announce_periph(periph, &speed, &freq, &cts); 3155 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3156 return; 3157 3158 mb = speed / 1000; 3159 if (mb > 0) 3160 printf("%s%d: %d.%03dMB/s transfers", 3161 periph->periph_name, periph->unit_number, 3162 mb, speed % 1000); 3163 else 3164 printf("%s%d: %dKB/s transfers", periph->periph_name, 3165 periph->unit_number, speed); 3166 /* Report additional information about SPI connections */ 3167 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3168 struct ccb_trans_settings_spi *spi; 3169 3170 spi = &cts.xport_specific.spi; 3171 if (freq != 0) { 3172 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3173 freq % 1000, 3174 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3175 ? " DT" : "", 3176 spi->sync_offset); 3177 } 3178 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3179 && spi->bus_width > 0) { 3180 if (freq != 0) { 3181 printf(", "); 3182 } else { 3183 printf(" ("); 3184 } 3185 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3186 } else if (freq != 0) { 3187 printf(")"); 3188 } 3189 } 3190 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3191 struct ccb_trans_settings_fc *fc; 3192 3193 fc = &cts.xport_specific.fc; 3194 if (fc->valid & CTS_FC_VALID_WWNN) 3195 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3196 if (fc->valid & CTS_FC_VALID_WWPN) 3197 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3198 if (fc->valid & CTS_FC_VALID_PORT) 3199 printf(" PortID 0x%x", fc->port); 3200 } 3201 printf("\n"); 3202 } 3203 3204 static void 3205 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3206 { 3207 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3208 } 3209 3210 static void 3211 scsi_proto_announce(struct cam_ed *device) 3212 { 3213 scsi_print_inquiry(&device->inq_data); 3214 } 3215 3216 static void 3217 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3218 { 3219 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3220 } 3221 3222 static void 3223 scsi_proto_denounce(struct cam_ed *device) 3224 { 3225 scsi_print_inquiry_short(&device->inq_data); 3226 } 3227 3228 static void 3229 scsi_proto_debug_out(union ccb *ccb) 3230 { 3231 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3232 struct cam_ed *device; 3233 3234 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3235 return; 3236 3237 device = ccb->ccb_h.path->device; 3238 CAM_DEBUG(ccb->ccb_h.path, 3239 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3240 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3241 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3242 } 3243