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