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 cam_status proberegister(struct cam_periph *periph, 560 void *arg); 561 static void probeschedule(struct cam_periph *probe_periph); 562 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 563 static void proberequestdefaultnegotiation(struct cam_periph *periph); 564 static int proberequestbackoff(struct cam_periph *periph, 565 struct cam_ed *device); 566 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 567 static void probe_purge_old(struct cam_path *path, 568 struct scsi_report_luns_data *new, 569 probe_flags flags); 570 static void probecleanup(struct cam_periph *periph); 571 static void scsi_find_quirk(struct cam_ed *device); 572 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 573 static void scsi_scan_lun(struct cam_periph *periph, 574 struct cam_path *path, cam_flags flags, 575 union ccb *ccb); 576 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 577 static struct cam_ed * 578 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 579 lun_id_t lun_id); 580 static void scsi_devise_transport(struct cam_path *path); 581 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 582 struct cam_path *path, 583 int async_update); 584 static void scsi_toggle_tags(struct cam_path *path); 585 static void scsi_dev_async(u_int32_t async_code, 586 struct cam_eb *bus, 587 struct cam_et *target, 588 struct cam_ed *device, 589 void *async_arg); 590 static void scsi_action(union ccb *start_ccb); 591 static void scsi_announce_periph(struct cam_periph *periph); 592 593 static struct xpt_xport scsi_xport = { 594 .alloc_device = scsi_alloc_device, 595 .action = scsi_action, 596 .async = scsi_dev_async, 597 .announce = scsi_announce_periph, 598 }; 599 600 struct xpt_xport * 601 scsi_get_xport(void) 602 { 603 return (&scsi_xport); 604 } 605 606 static void 607 probe_periph_init() 608 { 609 } 610 611 static cam_status 612 proberegister(struct cam_periph *periph, void *arg) 613 { 614 union ccb *request_ccb; /* CCB representing the probe request */ 615 cam_status status; 616 probe_softc *softc; 617 618 request_ccb = (union ccb *)arg; 619 if (request_ccb == NULL) { 620 printf("proberegister: no probe CCB, " 621 "can't register device\n"); 622 return(CAM_REQ_CMP_ERR); 623 } 624 625 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 626 627 if (softc == NULL) { 628 printf("proberegister: Unable to probe new device. " 629 "Unable to allocate softc\n"); 630 return(CAM_REQ_CMP_ERR); 631 } 632 TAILQ_INIT(&softc->request_ccbs); 633 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 634 periph_links.tqe); 635 softc->flags = 0; 636 periph->softc = softc; 637 softc->periph = periph; 638 softc->action = PROBE_INVALID; 639 status = cam_periph_acquire(periph); 640 if (status != CAM_REQ_CMP) { 641 return (status); 642 } 643 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 644 scsi_devise_transport(periph->path); 645 646 /* 647 * Ensure we've waited at least a bus settle 648 * delay before attempting to probe the device. 649 * For HBAs that don't do bus resets, this won't make a difference. 650 */ 651 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 652 scsi_delay); 653 probeschedule(periph); 654 return(CAM_REQ_CMP); 655 } 656 657 static void 658 probeschedule(struct cam_periph *periph) 659 { 660 struct ccb_pathinq cpi; 661 union ccb *ccb; 662 probe_softc *softc; 663 664 softc = (probe_softc *)periph->softc; 665 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 666 667 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 668 cpi.ccb_h.func_code = XPT_PATH_INQ; 669 xpt_action((union ccb *)&cpi); 670 671 /* 672 * If a device has gone away and another device, or the same one, 673 * is back in the same place, it should have a unit attention 674 * condition pending. It will not report the unit attention in 675 * response to an inquiry, which may leave invalid transfer 676 * negotiations in effect. The TUR will reveal the unit attention 677 * condition. Only send the TUR for lun 0, since some devices 678 * will get confused by commands other than inquiry to non-existent 679 * luns. If you think a device has gone away start your scan from 680 * lun 0. This will insure that any bogus transfer settings are 681 * invalidated. 682 * 683 * If we haven't seen the device before and the controller supports 684 * some kind of transfer negotiation, negotiate with the first 685 * sent command if no bus reset was performed at startup. This 686 * ensures that the device is not confused by transfer negotiation 687 * settings left over by loader or BIOS action. 688 */ 689 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 690 && (ccb->ccb_h.target_lun == 0)) { 691 PROBE_SET_ACTION(softc, PROBE_TUR); 692 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 693 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 694 proberequestdefaultnegotiation(periph); 695 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 696 } else { 697 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 698 } 699 700 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 701 softc->flags |= PROBE_NO_ANNOUNCE; 702 else 703 softc->flags &= ~PROBE_NO_ANNOUNCE; 704 705 if (cpi.hba_misc & PIM_EXTLUNS) 706 softc->flags |= PROBE_EXTLUN; 707 else 708 softc->flags &= ~PROBE_EXTLUN; 709 710 xpt_schedule(periph, CAM_PRIORITY_XPT); 711 } 712 713 static void 714 probestart(struct cam_periph *periph, union ccb *start_ccb) 715 { 716 /* Probe the device that our peripheral driver points to */ 717 struct ccb_scsiio *csio; 718 probe_softc *softc; 719 720 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 721 722 softc = (probe_softc *)periph->softc; 723 csio = &start_ccb->csio; 724 again: 725 726 switch (softc->action) { 727 case PROBE_TUR: 728 case PROBE_TUR_FOR_NEGOTIATION: 729 case PROBE_DV_EXIT: 730 { 731 scsi_test_unit_ready(csio, 732 /*retries*/4, 733 probedone, 734 MSG_SIMPLE_Q_TAG, 735 SSD_FULL_SIZE, 736 /*timeout*/60000); 737 break; 738 } 739 case PROBE_INQUIRY: 740 case PROBE_FULL_INQUIRY: 741 case PROBE_INQUIRY_BASIC_DV1: 742 case PROBE_INQUIRY_BASIC_DV2: 743 { 744 u_int inquiry_len; 745 struct scsi_inquiry_data *inq_buf; 746 747 inq_buf = &periph->path->device->inq_data; 748 749 /* 750 * If the device is currently configured, we calculate an 751 * MD5 checksum of the inquiry data, and if the serial number 752 * length is greater than 0, add the serial number data 753 * into the checksum as well. Once the inquiry and the 754 * serial number check finish, we attempt to figure out 755 * whether we still have the same device. 756 */ 757 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 758 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 759 760 MD5Init(&softc->context); 761 MD5Update(&softc->context, (unsigned char *)inq_buf, 762 sizeof(struct scsi_inquiry_data)); 763 softc->flags |= PROBE_INQUIRY_CKSUM; 764 if (periph->path->device->serial_num_len > 0) { 765 MD5Update(&softc->context, 766 periph->path->device->serial_num, 767 periph->path->device->serial_num_len); 768 softc->flags |= PROBE_SERIAL_CKSUM; 769 } 770 MD5Final(softc->digest, &softc->context); 771 } 772 773 if (softc->action == PROBE_INQUIRY) 774 inquiry_len = SHORT_INQUIRY_LENGTH; 775 else 776 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 777 778 /* 779 * Some parallel SCSI devices fail to send an 780 * ignore wide residue message when dealing with 781 * odd length inquiry requests. Round up to be 782 * safe. 783 */ 784 inquiry_len = roundup2(inquiry_len, 2); 785 786 if (softc->action == PROBE_INQUIRY_BASIC_DV1 787 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 788 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 789 } 790 if (inq_buf == NULL) { 791 xpt_print(periph->path, "malloc failure- skipping Basic" 792 "Domain Validation\n"); 793 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 794 scsi_test_unit_ready(csio, 795 /*retries*/4, 796 probedone, 797 MSG_SIMPLE_Q_TAG, 798 SSD_FULL_SIZE, 799 /*timeout*/60000); 800 break; 801 } 802 scsi_inquiry(csio, 803 /*retries*/4, 804 probedone, 805 MSG_SIMPLE_Q_TAG, 806 (u_int8_t *)inq_buf, 807 inquiry_len, 808 /*evpd*/FALSE, 809 /*page_code*/0, 810 SSD_MIN_SIZE, 811 /*timeout*/60 * 1000); 812 break; 813 } 814 case PROBE_REPORT_LUNS: 815 { 816 void *rp; 817 818 rp = malloc(periph->path->target->rpl_size, 819 M_CAMXPT, M_NOWAIT | M_ZERO); 820 if (rp == NULL) { 821 struct scsi_inquiry_data *inq_buf; 822 inq_buf = &periph->path->device->inq_data; 823 xpt_print(periph->path, 824 "Unable to alloc report luns storage\n"); 825 if (INQ_DATA_TQ_ENABLED(inq_buf)) 826 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 827 else 828 PROBE_SET_ACTION(softc, 829 PROBE_SUPPORTED_VPD_LIST); 830 goto again; 831 } 832 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 833 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 834 SSD_FULL_SIZE, 60000); break; 835 break; 836 } 837 case PROBE_MODE_SENSE: 838 { 839 void *mode_buf; 840 int mode_buf_len; 841 842 mode_buf_len = sizeof(struct scsi_mode_header_6) 843 + sizeof(struct scsi_mode_blk_desc) 844 + sizeof(struct scsi_control_page); 845 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 846 if (mode_buf != NULL) { 847 scsi_mode_sense(csio, 848 /*retries*/4, 849 probedone, 850 MSG_SIMPLE_Q_TAG, 851 /*dbd*/FALSE, 852 SMS_PAGE_CTRL_CURRENT, 853 SMS_CONTROL_MODE_PAGE, 854 mode_buf, 855 mode_buf_len, 856 SSD_FULL_SIZE, 857 /*timeout*/60000); 858 break; 859 } 860 xpt_print(periph->path, "Unable to mode sense control page - " 861 "malloc failure\n"); 862 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 863 } 864 /* FALLTHROUGH */ 865 case PROBE_SUPPORTED_VPD_LIST: 866 { 867 struct scsi_vpd_supported_page_list *vpd_list; 868 struct cam_ed *device; 869 870 vpd_list = NULL; 871 device = periph->path->device; 872 873 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 874 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 875 M_NOWAIT | M_ZERO); 876 877 if (vpd_list != NULL) { 878 scsi_inquiry(csio, 879 /*retries*/4, 880 probedone, 881 MSG_SIMPLE_Q_TAG, 882 (u_int8_t *)vpd_list, 883 sizeof(*vpd_list), 884 /*evpd*/TRUE, 885 SVPD_SUPPORTED_PAGE_LIST, 886 SSD_MIN_SIZE, 887 /*timeout*/60 * 1000); 888 break; 889 } 890 done: 891 /* 892 * We'll have to do without, let our probedone 893 * routine finish up for us. 894 */ 895 start_ccb->csio.data_ptr = NULL; 896 cam_freeze_devq(periph->path); 897 cam_periph_doacquire(periph); 898 probedone(periph, start_ccb); 899 return; 900 } 901 case PROBE_DEVICE_ID: 902 { 903 struct scsi_vpd_device_id *devid; 904 905 devid = NULL; 906 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 907 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 908 M_NOWAIT | M_ZERO); 909 910 if (devid != NULL) { 911 scsi_inquiry(csio, 912 /*retries*/4, 913 probedone, 914 MSG_SIMPLE_Q_TAG, 915 (uint8_t *)devid, 916 SVPD_DEVICE_ID_MAX_SIZE, 917 /*evpd*/TRUE, 918 SVPD_DEVICE_ID, 919 SSD_MIN_SIZE, 920 /*timeout*/60 * 1000); 921 break; 922 } 923 goto done; 924 } 925 case PROBE_EXTENDED_INQUIRY: 926 { 927 struct scsi_vpd_extended_inquiry_data *ext_inq; 928 929 ext_inq = NULL; 930 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 931 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 932 M_NOWAIT | M_ZERO); 933 934 if (ext_inq != NULL) { 935 scsi_inquiry(csio, 936 /*retries*/4, 937 probedone, 938 MSG_SIMPLE_Q_TAG, 939 (uint8_t *)ext_inq, 940 sizeof(*ext_inq), 941 /*evpd*/TRUE, 942 SVPD_EXTENDED_INQUIRY_DATA, 943 SSD_MIN_SIZE, 944 /*timeout*/60 * 1000); 945 break; 946 } 947 /* 948 * We'll have to do without, let our probedone 949 * routine finish up for us. 950 */ 951 goto done; 952 } 953 case PROBE_SERIAL_NUM: 954 { 955 struct scsi_vpd_unit_serial_number *serial_buf; 956 struct cam_ed* device; 957 958 serial_buf = NULL; 959 device = periph->path->device; 960 if (device->serial_num != NULL) { 961 free(device->serial_num, M_CAMXPT); 962 device->serial_num = NULL; 963 device->serial_num_len = 0; 964 } 965 966 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 967 serial_buf = (struct scsi_vpd_unit_serial_number *) 968 malloc(sizeof(*serial_buf), M_CAMXPT, 969 M_NOWAIT|M_ZERO); 970 971 if (serial_buf != NULL) { 972 scsi_inquiry(csio, 973 /*retries*/4, 974 probedone, 975 MSG_SIMPLE_Q_TAG, 976 (u_int8_t *)serial_buf, 977 sizeof(*serial_buf), 978 /*evpd*/TRUE, 979 SVPD_UNIT_SERIAL_NUMBER, 980 SSD_MIN_SIZE, 981 /*timeout*/60 * 1000); 982 break; 983 } 984 goto done; 985 } 986 default: 987 panic("probestart: invalid action state 0x%x\n", softc->action); 988 } 989 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 990 cam_periph_doacquire(periph); 991 xpt_action(start_ccb); 992 } 993 994 static void 995 proberequestdefaultnegotiation(struct cam_periph *periph) 996 { 997 struct ccb_trans_settings cts; 998 999 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1000 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1001 cts.type = CTS_TYPE_USER_SETTINGS; 1002 xpt_action((union ccb *)&cts); 1003 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1004 return; 1005 } 1006 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1007 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1008 xpt_action((union ccb *)&cts); 1009 } 1010 1011 /* 1012 * Backoff Negotiation Code- only pertinent for SPI devices. 1013 */ 1014 static int 1015 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1016 { 1017 struct ccb_trans_settings cts; 1018 struct ccb_trans_settings_spi *spi; 1019 1020 memset(&cts, 0, sizeof (cts)); 1021 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1022 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1023 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1024 xpt_action((union ccb *)&cts); 1025 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1026 if (bootverbose) { 1027 xpt_print(periph->path, 1028 "failed to get current device settings\n"); 1029 } 1030 return (0); 1031 } 1032 if (cts.transport != XPORT_SPI) { 1033 if (bootverbose) { 1034 xpt_print(periph->path, "not SPI transport\n"); 1035 } 1036 return (0); 1037 } 1038 spi = &cts.xport_specific.spi; 1039 1040 /* 1041 * We cannot renegotiate sync rate if we don't have one. 1042 */ 1043 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1044 if (bootverbose) { 1045 xpt_print(periph->path, "no sync rate known\n"); 1046 } 1047 return (0); 1048 } 1049 1050 /* 1051 * We'll assert that we don't have to touch PPR options- the 1052 * SIM will see what we do with period and offset and adjust 1053 * the PPR options as appropriate. 1054 */ 1055 1056 /* 1057 * A sync rate with unknown or zero offset is nonsensical. 1058 * A sync period of zero means Async. 1059 */ 1060 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1061 || spi->sync_offset == 0 || spi->sync_period == 0) { 1062 if (bootverbose) { 1063 xpt_print(periph->path, "no sync rate available\n"); 1064 } 1065 return (0); 1066 } 1067 1068 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1069 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1070 ("hit async: giving up on DV\n")); 1071 return (0); 1072 } 1073 1074 1075 /* 1076 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1077 * We don't try to remember 'last' settings to see if the SIM actually 1078 * gets into the speed we want to set. We check on the SIM telling 1079 * us that a requested speed is bad, but otherwise don't try and 1080 * check the speed due to the asynchronous and handshake nature 1081 * of speed setting. 1082 */ 1083 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1084 for (;;) { 1085 spi->sync_period++; 1086 if (spi->sync_period >= 0xf) { 1087 spi->sync_period = 0; 1088 spi->sync_offset = 0; 1089 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1090 ("setting to async for DV\n")); 1091 /* 1092 * Once we hit async, we don't want to try 1093 * any more settings. 1094 */ 1095 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1096 } else if (bootverbose) { 1097 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1098 ("DV: period 0x%x\n", spi->sync_period)); 1099 printf("setting period to 0x%x\n", spi->sync_period); 1100 } 1101 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1102 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1103 xpt_action((union ccb *)&cts); 1104 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1105 break; 1106 } 1107 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1108 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1109 if (spi->sync_period == 0) { 1110 return (0); 1111 } 1112 } 1113 return (1); 1114 } 1115 1116 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1117 1118 static void 1119 probedone(struct cam_periph *periph, union ccb *done_ccb) 1120 { 1121 probe_softc *softc; 1122 struct cam_path *path; 1123 struct scsi_inquiry_data *inq_buf; 1124 u_int32_t priority; 1125 1126 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1127 1128 softc = (probe_softc *)periph->softc; 1129 path = done_ccb->ccb_h.path; 1130 priority = done_ccb->ccb_h.pinfo.priority; 1131 1132 switch (softc->action) { 1133 case PROBE_TUR: 1134 { 1135 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1136 1137 if (cam_periph_error(done_ccb, 0, 1138 SF_NO_PRINT, NULL) == ERESTART) { 1139 outr: 1140 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1141 cam_release_devq(path, 0, 0, 0, FALSE); 1142 return; 1143 } 1144 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1145 /* Don't wedge the queue */ 1146 xpt_release_devq(done_ccb->ccb_h.path, 1147 /*count*/1, 1148 /*run_queue*/TRUE); 1149 } 1150 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1151 xpt_release_ccb(done_ccb); 1152 xpt_schedule(periph, priority); 1153 out: 1154 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1155 cam_release_devq(path, 0, 0, 0, FALSE); 1156 cam_periph_release_locked(periph); 1157 return; 1158 } 1159 case PROBE_INQUIRY: 1160 case PROBE_FULL_INQUIRY: 1161 { 1162 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1163 u_int8_t periph_qual; 1164 1165 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1166 scsi_find_quirk(path->device); 1167 inq_buf = &path->device->inq_data; 1168 1169 periph_qual = SID_QUAL(inq_buf); 1170 1171 if (periph_qual == SID_QUAL_LU_CONNECTED || 1172 periph_qual == SID_QUAL_LU_OFFLINE) { 1173 u_int8_t len; 1174 1175 /* 1176 * We conservatively request only 1177 * SHORT_INQUIRY_LEN bytes of inquiry 1178 * information during our first try 1179 * at sending an INQUIRY. If the device 1180 * has more information to give, 1181 * perform a second request specifying 1182 * the amount of information the device 1183 * is willing to give. 1184 */ 1185 len = inq_buf->additional_length 1186 + offsetof(struct scsi_inquiry_data, 1187 additional_length) + 1; 1188 if (softc->action == PROBE_INQUIRY 1189 && len > SHORT_INQUIRY_LENGTH) { 1190 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1191 xpt_release_ccb(done_ccb); 1192 xpt_schedule(periph, priority); 1193 goto out; 1194 } 1195 1196 scsi_devise_transport(path); 1197 1198 if (path->device->lun_id == 0 && 1199 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1200 (SCSI_QUIRK(path->device)->quirks & 1201 CAM_QUIRK_NORPTLUNS) == 0) { 1202 PROBE_SET_ACTION(softc, 1203 PROBE_REPORT_LUNS); 1204 /* 1205 * Start with room for *one* lun. 1206 */ 1207 periph->path->target->rpl_size = 16; 1208 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1209 PROBE_SET_ACTION(softc, 1210 PROBE_MODE_SENSE); 1211 else 1212 PROBE_SET_ACTION(softc, 1213 PROBE_SUPPORTED_VPD_LIST); 1214 1215 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1216 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1217 xpt_acquire_device(path->device); 1218 } 1219 xpt_release_ccb(done_ccb); 1220 xpt_schedule(periph, priority); 1221 goto out; 1222 } else if (path->device->lun_id == 0 && 1223 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1224 (SCSI_QUIRK(path->device)->quirks & 1225 CAM_QUIRK_NORPTLUNS) == 0) { 1226 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1227 periph->path->target->rpl_size = 16; 1228 xpt_release_ccb(done_ccb); 1229 xpt_schedule(periph, priority); 1230 goto out; 1231 } 1232 } else if (cam_periph_error(done_ccb, 0, 1233 done_ccb->ccb_h.target_lun > 0 1234 ? SF_RETRY_UA|SF_QUIET_IR 1235 : SF_RETRY_UA, 1236 &softc->saved_ccb) == ERESTART) { 1237 goto outr; 1238 } else { 1239 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1240 /* Don't wedge the queue */ 1241 xpt_release_devq(done_ccb->ccb_h.path, 1242 /*count*/1, /*run_queue*/TRUE); 1243 } 1244 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1245 } 1246 /* 1247 * If we get to this point, we got an error status back 1248 * from the inquiry and the error status doesn't require 1249 * automatically retrying the command. Therefore, the 1250 * inquiry failed. If we had inquiry information before 1251 * for this device, but this latest inquiry command failed, 1252 * the device has probably gone away. If this device isn't 1253 * already marked unconfigured, notify the peripheral 1254 * drivers that this device is no more. 1255 */ 1256 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1257 /* Send the async notification. */ 1258 xpt_async(AC_LOST_DEVICE, path, NULL); 1259 PROBE_SET_ACTION(softc, PROBE_INVALID); 1260 1261 xpt_release_ccb(done_ccb); 1262 break; 1263 } 1264 case PROBE_REPORT_LUNS: 1265 { 1266 struct ccb_scsiio *csio; 1267 struct scsi_report_luns_data *lp; 1268 u_int nlun, maxlun; 1269 1270 csio = &done_ccb->csio; 1271 1272 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1273 nlun = scsi_4btoul(lp->length) / 8; 1274 maxlun = (csio->dxfer_len / 8) - 1; 1275 1276 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1277 if (cam_periph_error(done_ccb, 0, 1278 done_ccb->ccb_h.target_lun > 0 ? 1279 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1280 &softc->saved_ccb) == ERESTART) { 1281 goto outr; 1282 } 1283 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1284 xpt_release_devq(done_ccb->ccb_h.path, 1, 1285 TRUE); 1286 } 1287 free(lp, M_CAMXPT); 1288 lp = NULL; 1289 } else if (nlun > maxlun) { 1290 /* 1291 * Reallocate and retry to cover all luns 1292 */ 1293 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1294 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1295 nlun)); 1296 free(lp, M_CAMXPT); 1297 path->target->rpl_size = (nlun << 3) + 8; 1298 xpt_release_ccb(done_ccb); 1299 xpt_schedule(periph, priority); 1300 goto out; 1301 } else if (nlun == 0) { 1302 /* 1303 * If there don't appear to be any luns, bail. 1304 */ 1305 free(lp, M_CAMXPT); 1306 lp = NULL; 1307 } else { 1308 lun_id_t lun; 1309 int idx; 1310 1311 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1312 ("Probe: %u lun(s) reported\n", nlun)); 1313 1314 CAM_GET_LUN(lp, 0, lun); 1315 /* 1316 * If the first lun is not lun 0, then either there 1317 * is no lun 0 in the list, or the list is unsorted. 1318 */ 1319 if (lun != 0) { 1320 for (idx = 0; idx < nlun; idx++) { 1321 CAM_GET_LUN(lp, idx, lun); 1322 if (lun == 0) { 1323 break; 1324 } 1325 } 1326 if (idx != nlun) { 1327 uint8_t tlun[8]; 1328 memcpy(tlun, 1329 lp->luns[0].lundata, 8); 1330 memcpy(lp->luns[0].lundata, 1331 lp->luns[idx].lundata, 8); 1332 memcpy(lp->luns[idx].lundata, 1333 tlun, 8); 1334 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1335 ("lun 0 in position %u\n", idx)); 1336 } 1337 } 1338 /* 1339 * If we have an old lun list, We can either 1340 * retest luns that appear to have been dropped, 1341 * or just nuke them. We'll opt for the latter. 1342 * This function will also install the new list 1343 * in the target structure. 1344 */ 1345 probe_purge_old(path, lp, softc->flags); 1346 lp = NULL; 1347 } 1348 inq_buf = &path->device->inq_data; 1349 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1350 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1351 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1352 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1353 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1354 else 1355 PROBE_SET_ACTION(softc, 1356 PROBE_SUPPORTED_VPD_LIST); 1357 xpt_release_ccb(done_ccb); 1358 xpt_schedule(periph, priority); 1359 goto out; 1360 } 1361 if (lp) { 1362 free(lp, M_CAMXPT); 1363 } 1364 PROBE_SET_ACTION(softc, PROBE_INVALID); 1365 xpt_release_ccb(done_ccb); 1366 break; 1367 } 1368 case PROBE_MODE_SENSE: 1369 { 1370 struct ccb_scsiio *csio; 1371 struct scsi_mode_header_6 *mode_hdr; 1372 1373 csio = &done_ccb->csio; 1374 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1375 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1376 struct scsi_control_page *page; 1377 u_int8_t *offset; 1378 1379 offset = ((u_int8_t *)&mode_hdr[1]) 1380 + mode_hdr->blk_desc_len; 1381 page = (struct scsi_control_page *)offset; 1382 path->device->queue_flags = page->queue_flags; 1383 } else if (cam_periph_error(done_ccb, 0, 1384 SF_RETRY_UA|SF_NO_PRINT, 1385 &softc->saved_ccb) == ERESTART) { 1386 goto outr; 1387 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1388 /* Don't wedge the queue */ 1389 xpt_release_devq(done_ccb->ccb_h.path, 1390 /*count*/1, /*run_queue*/TRUE); 1391 } 1392 xpt_release_ccb(done_ccb); 1393 free(mode_hdr, M_CAMXPT); 1394 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1395 xpt_schedule(periph, priority); 1396 goto out; 1397 } 1398 case PROBE_SUPPORTED_VPD_LIST: 1399 { 1400 struct ccb_scsiio *csio; 1401 struct scsi_vpd_supported_page_list *page_list; 1402 1403 csio = &done_ccb->csio; 1404 page_list = 1405 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1406 1407 if (path->device->supported_vpds != NULL) { 1408 free(path->device->supported_vpds, M_CAMXPT); 1409 path->device->supported_vpds = NULL; 1410 path->device->supported_vpds_len = 0; 1411 } 1412 1413 if (page_list == NULL) { 1414 /* 1415 * Don't process the command as it was never sent 1416 */ 1417 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1418 /* Got vpd list */ 1419 path->device->supported_vpds_len = page_list->length + 1420 SVPD_SUPPORTED_PAGES_HDR_LEN; 1421 path->device->supported_vpds = (uint8_t *)page_list; 1422 xpt_release_ccb(done_ccb); 1423 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1424 xpt_schedule(periph, priority); 1425 goto out; 1426 } else if (cam_periph_error(done_ccb, 0, 1427 SF_RETRY_UA|SF_NO_PRINT, 1428 &softc->saved_ccb) == ERESTART) { 1429 goto outr; 1430 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1431 /* Don't wedge the queue */ 1432 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1433 /*run_queue*/TRUE); 1434 } 1435 1436 if (page_list) 1437 free(page_list, M_CAMXPT); 1438 /* No VPDs available, skip to device check. */ 1439 csio->data_ptr = NULL; 1440 goto probe_device_check; 1441 } 1442 case PROBE_DEVICE_ID: 1443 { 1444 struct scsi_vpd_device_id *devid; 1445 struct ccb_scsiio *csio; 1446 uint32_t length = 0; 1447 1448 csio = &done_ccb->csio; 1449 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1450 1451 /* Clean up from previous instance of this device */ 1452 if (path->device->device_id != NULL) { 1453 path->device->device_id_len = 0; 1454 free(path->device->device_id, M_CAMXPT); 1455 path->device->device_id = NULL; 1456 } 1457 1458 if (devid == NULL) { 1459 /* Don't process the command as it was never sent */ 1460 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1461 length = scsi_2btoul(devid->length); 1462 if (length != 0) { 1463 /* 1464 * NB: device_id_len is actual response 1465 * size, not buffer size. 1466 */ 1467 path->device->device_id_len = length + 1468 SVPD_DEVICE_ID_HDR_LEN; 1469 path->device->device_id = (uint8_t *)devid; 1470 } 1471 } else if (cam_periph_error(done_ccb, 0, 1472 SF_RETRY_UA, 1473 &softc->saved_ccb) == ERESTART) { 1474 goto outr; 1475 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1476 /* Don't wedge the queue */ 1477 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1478 /*run_queue*/TRUE); 1479 } 1480 1481 /* Free the device id space if we don't use it */ 1482 if (devid && length == 0) 1483 free(devid, M_CAMXPT); 1484 xpt_release_ccb(done_ccb); 1485 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1486 xpt_schedule(periph, priority); 1487 goto out; 1488 } 1489 case PROBE_EXTENDED_INQUIRY: { 1490 struct scsi_vpd_extended_inquiry_data *ext_inq; 1491 struct ccb_scsiio *csio; 1492 int32_t length = 0; 1493 1494 csio = &done_ccb->csio; 1495 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1496 csio->data_ptr; 1497 if (path->device->ext_inq != NULL) { 1498 path->device->ext_inq_len = 0; 1499 free(path->device->ext_inq, M_CAMXPT); 1500 path->device->ext_inq = NULL; 1501 } 1502 1503 if (ext_inq == NULL) { 1504 /* Don't process the command as it was never sent */ 1505 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1506 length = scsi_2btoul(ext_inq->page_length) + 1507 __offsetof(struct scsi_vpd_extended_inquiry_data, 1508 flags1); 1509 length = min(length, sizeof(*ext_inq)); 1510 length -= csio->resid; 1511 if (length > 0) { 1512 path->device->ext_inq_len = length; 1513 path->device->ext_inq = (uint8_t *)ext_inq; 1514 } 1515 } else if (cam_periph_error(done_ccb, 0, 1516 SF_RETRY_UA, 1517 &softc->saved_ccb) == ERESTART) { 1518 goto outr; 1519 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1520 /* Don't wedge the queue */ 1521 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1522 /*run_queue*/TRUE); 1523 } 1524 1525 /* Free the device id space if we don't use it */ 1526 if (ext_inq && length <= 0) 1527 free(ext_inq, M_CAMXPT); 1528 xpt_release_ccb(done_ccb); 1529 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1530 xpt_schedule(periph, priority); 1531 goto out; 1532 } 1533 1534 probe_device_check: 1535 case PROBE_SERIAL_NUM: 1536 { 1537 struct ccb_scsiio *csio; 1538 struct scsi_vpd_unit_serial_number *serial_buf; 1539 u_int32_t priority; 1540 int changed; 1541 int have_serialnum; 1542 1543 changed = 1; 1544 have_serialnum = 0; 1545 csio = &done_ccb->csio; 1546 priority = done_ccb->ccb_h.pinfo.priority; 1547 serial_buf = 1548 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1549 1550 if (serial_buf == NULL) { 1551 /* 1552 * Don't process the command as it was never sent 1553 */ 1554 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1555 && (serial_buf->length > 0)) { 1556 1557 have_serialnum = 1; 1558 path->device->serial_num = 1559 (u_int8_t *)malloc((serial_buf->length + 1), 1560 M_CAMXPT, M_NOWAIT); 1561 if (path->device->serial_num != NULL) { 1562 memcpy(path->device->serial_num, 1563 serial_buf->serial_num, 1564 serial_buf->length); 1565 path->device->serial_num_len = 1566 serial_buf->length; 1567 path->device->serial_num[serial_buf->length] 1568 = '\0'; 1569 } 1570 } else if (cam_periph_error(done_ccb, 0, 1571 SF_RETRY_UA|SF_NO_PRINT, 1572 &softc->saved_ccb) == ERESTART) { 1573 goto outr; 1574 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1575 /* Don't wedge the queue */ 1576 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1577 /*run_queue*/TRUE); 1578 } 1579 1580 /* 1581 * Let's see if we have seen this device before. 1582 */ 1583 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1584 MD5_CTX context; 1585 u_int8_t digest[16]; 1586 1587 MD5Init(&context); 1588 1589 MD5Update(&context, 1590 (unsigned char *)&path->device->inq_data, 1591 sizeof(struct scsi_inquiry_data)); 1592 1593 if (have_serialnum) 1594 MD5Update(&context, serial_buf->serial_num, 1595 serial_buf->length); 1596 1597 MD5Final(digest, &context); 1598 if (bcmp(softc->digest, digest, 16) == 0) 1599 changed = 0; 1600 1601 /* 1602 * XXX Do we need to do a TUR in order to ensure 1603 * that the device really hasn't changed??? 1604 */ 1605 if ((changed != 0) 1606 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1607 xpt_async(AC_LOST_DEVICE, path, NULL); 1608 } 1609 if (serial_buf != NULL) 1610 free(serial_buf, M_CAMXPT); 1611 1612 if (changed != 0) { 1613 /* 1614 * Now that we have all the necessary 1615 * information to safely perform transfer 1616 * negotiations... Controllers don't perform 1617 * any negotiation or tagged queuing until 1618 * after the first XPT_SET_TRAN_SETTINGS ccb is 1619 * received. So, on a new device, just retrieve 1620 * the user settings, and set them as the current 1621 * settings to set the device up. 1622 */ 1623 proberequestdefaultnegotiation(periph); 1624 xpt_release_ccb(done_ccb); 1625 1626 /* 1627 * Perform a TUR to allow the controller to 1628 * perform any necessary transfer negotiation. 1629 */ 1630 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1631 xpt_schedule(periph, priority); 1632 goto out; 1633 } 1634 xpt_release_ccb(done_ccb); 1635 break; 1636 } 1637 case PROBE_TUR_FOR_NEGOTIATION: 1638 case PROBE_DV_EXIT: 1639 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1640 cam_periph_error(done_ccb, 0, 1641 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1642 } 1643 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1644 /* Don't wedge the queue */ 1645 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1646 /*run_queue*/TRUE); 1647 } 1648 /* 1649 * Do Domain Validation for lun 0 on devices that claim 1650 * to support Synchronous Transfer modes. 1651 */ 1652 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1653 && done_ccb->ccb_h.target_lun == 0 1654 && (path->device->inq_data.flags & SID_Sync) != 0 1655 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1656 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1657 ("Begin Domain Validation\n")); 1658 path->device->flags |= CAM_DEV_IN_DV; 1659 xpt_release_ccb(done_ccb); 1660 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1661 xpt_schedule(periph, priority); 1662 goto out; 1663 } 1664 if (softc->action == PROBE_DV_EXIT) { 1665 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1666 ("Leave Domain Validation\n")); 1667 } 1668 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1669 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1670 xpt_acquire_device(path->device); 1671 } 1672 path->device->flags &= 1673 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1674 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1675 /* Inform the XPT that a new device has been found */ 1676 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1677 xpt_action(done_ccb); 1678 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1679 done_ccb); 1680 } 1681 PROBE_SET_ACTION(softc, PROBE_DONE); 1682 xpt_release_ccb(done_ccb); 1683 break; 1684 case PROBE_INQUIRY_BASIC_DV1: 1685 case PROBE_INQUIRY_BASIC_DV2: 1686 { 1687 struct scsi_inquiry_data *nbuf; 1688 struct ccb_scsiio *csio; 1689 1690 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1691 cam_periph_error(done_ccb, 0, 1692 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1693 } 1694 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1695 /* Don't wedge the queue */ 1696 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1697 /*run_queue*/TRUE); 1698 } 1699 csio = &done_ccb->csio; 1700 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1701 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1702 xpt_print(path, 1703 "inquiry data fails comparison at DV%d step\n", 1704 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1705 if (proberequestbackoff(periph, path->device)) { 1706 path->device->flags &= ~CAM_DEV_IN_DV; 1707 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1708 } else { 1709 /* give up */ 1710 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1711 } 1712 free(nbuf, M_CAMXPT); 1713 xpt_release_ccb(done_ccb); 1714 xpt_schedule(periph, priority); 1715 goto out; 1716 } 1717 free(nbuf, M_CAMXPT); 1718 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1719 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1720 xpt_release_ccb(done_ccb); 1721 xpt_schedule(periph, priority); 1722 goto out; 1723 } 1724 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1725 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1726 ("Leave Domain Validation Successfully\n")); 1727 } 1728 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1729 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1730 xpt_acquire_device(path->device); 1731 } 1732 path->device->flags &= 1733 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1734 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1735 /* Inform the XPT that a new device has been found */ 1736 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1737 xpt_action(done_ccb); 1738 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1739 done_ccb); 1740 } 1741 PROBE_SET_ACTION(softc, PROBE_DONE); 1742 xpt_release_ccb(done_ccb); 1743 break; 1744 } 1745 default: 1746 panic("probedone: invalid action state 0x%x\n", softc->action); 1747 } 1748 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1749 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1750 done_ccb->ccb_h.status = CAM_REQ_CMP; 1751 xpt_done(done_ccb); 1752 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1753 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1754 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1755 cam_release_devq(path, 0, 0, 0, FALSE); 1756 cam_periph_release_locked(periph); 1757 cam_periph_invalidate(periph); 1758 cam_periph_release_locked(periph); 1759 } else { 1760 probeschedule(periph); 1761 goto out; 1762 } 1763 } 1764 1765 static void 1766 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1767 probe_flags flags) 1768 { 1769 struct cam_path *tp; 1770 struct scsi_report_luns_data *old; 1771 u_int idx1, idx2, nlun_old, nlun_new; 1772 lun_id_t this_lun; 1773 u_int8_t *ol, *nl; 1774 1775 if (path->target == NULL) { 1776 return; 1777 } 1778 mtx_lock(&path->target->luns_mtx); 1779 old = path->target->luns; 1780 path->target->luns = new; 1781 mtx_unlock(&path->target->luns_mtx); 1782 if (old == NULL) 1783 return; 1784 nlun_old = scsi_4btoul(old->length) / 8; 1785 nlun_new = scsi_4btoul(new->length) / 8; 1786 1787 /* 1788 * We are not going to assume sorted lists. Deal. 1789 */ 1790 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1791 ol = old->luns[idx1].lundata; 1792 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1793 nl = new->luns[idx2].lundata; 1794 if (memcmp(nl, ol, 8) == 0) { 1795 break; 1796 } 1797 } 1798 if (idx2 < nlun_new) { 1799 continue; 1800 } 1801 /* 1802 * An 'old' item not in the 'new' list. 1803 * Nuke it. Except that if it is lun 0, 1804 * that would be what the probe state 1805 * machine is currently working on, 1806 * so we won't do that. 1807 */ 1808 CAM_GET_LUN(old, idx1, this_lun); 1809 if (this_lun == 0) { 1810 continue; 1811 } 1812 1813 /* 1814 * We also cannot nuke it if it is 1815 * not in a lun format we understand 1816 * and replace the LUN with a "simple" LUN 1817 * if that is all the HBA supports. 1818 */ 1819 if (!(flags & PROBE_EXTLUN)) { 1820 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1821 continue; 1822 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1823 } 1824 1825 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1826 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1827 xpt_async(AC_LOST_DEVICE, tp, NULL); 1828 xpt_free_path(tp); 1829 } 1830 } 1831 free(old, M_CAMXPT); 1832 } 1833 1834 static void 1835 probecleanup(struct cam_periph *periph) 1836 { 1837 free(periph->softc, M_CAMXPT); 1838 } 1839 1840 static void 1841 scsi_find_quirk(struct cam_ed *device) 1842 { 1843 struct scsi_quirk_entry *quirk; 1844 caddr_t match; 1845 1846 match = cam_quirkmatch((caddr_t)&device->inq_data, 1847 (caddr_t)scsi_quirk_table, 1848 nitems(scsi_quirk_table), 1849 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1850 1851 if (match == NULL) 1852 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1853 1854 quirk = (struct scsi_quirk_entry *)match; 1855 device->quirk = quirk; 1856 device->mintags = quirk->mintags; 1857 device->maxtags = quirk->maxtags; 1858 } 1859 1860 static int 1861 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1862 { 1863 int error, val; 1864 1865 val = cam_srch_hi; 1866 error = sysctl_handle_int(oidp, &val, 0, req); 1867 if (error != 0 || req->newptr == NULL) 1868 return (error); 1869 if (val == 0 || val == 1) { 1870 cam_srch_hi = val; 1871 return (0); 1872 } else { 1873 return (EINVAL); 1874 } 1875 } 1876 1877 typedef struct { 1878 union ccb *request_ccb; 1879 struct ccb_pathinq *cpi; 1880 int counter; 1881 int lunindex[0]; 1882 } scsi_scan_bus_info; 1883 1884 /* 1885 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1886 * As the scan progresses, scsi_scan_bus is used as the 1887 * callback on completion function. 1888 */ 1889 static void 1890 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1891 { 1892 struct mtx *mtx; 1893 1894 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1895 ("scsi_scan_bus\n")); 1896 switch (request_ccb->ccb_h.func_code) { 1897 case XPT_SCAN_BUS: 1898 case XPT_SCAN_TGT: 1899 { 1900 scsi_scan_bus_info *scan_info; 1901 union ccb *work_ccb, *reset_ccb; 1902 struct cam_path *path; 1903 u_int i; 1904 u_int low_target, max_target; 1905 u_int initiator_id; 1906 1907 /* Find out the characteristics of the bus */ 1908 work_ccb = xpt_alloc_ccb_nowait(); 1909 if (work_ccb == NULL) { 1910 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1911 xpt_done(request_ccb); 1912 return; 1913 } 1914 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1915 request_ccb->ccb_h.pinfo.priority); 1916 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1917 xpt_action(work_ccb); 1918 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1919 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1920 xpt_free_ccb(work_ccb); 1921 xpt_done(request_ccb); 1922 return; 1923 } 1924 1925 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1926 /* 1927 * Can't scan the bus on an adapter that 1928 * cannot perform the initiator role. 1929 */ 1930 request_ccb->ccb_h.status = CAM_REQ_CMP; 1931 xpt_free_ccb(work_ccb); 1932 xpt_done(request_ccb); 1933 return; 1934 } 1935 1936 /* We may need to reset bus first, if we haven't done it yet. */ 1937 if ((work_ccb->cpi.hba_inquiry & 1938 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1939 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1940 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1941 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1942 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1943 CAM_PRIORITY_NONE); 1944 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1945 xpt_action(reset_ccb); 1946 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1947 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1948 xpt_free_ccb(reset_ccb); 1949 xpt_free_ccb(work_ccb); 1950 xpt_done(request_ccb); 1951 return; 1952 } 1953 xpt_free_ccb(reset_ccb); 1954 } 1955 1956 /* Save some state for use while we probe for devices */ 1957 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1958 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1959 if (scan_info == NULL) { 1960 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1961 xpt_free_ccb(work_ccb); 1962 xpt_done(request_ccb); 1963 return; 1964 } 1965 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1966 ("SCAN start for %p\n", scan_info)); 1967 scan_info->request_ccb = request_ccb; 1968 scan_info->cpi = &work_ccb->cpi; 1969 1970 /* Cache on our stack so we can work asynchronously */ 1971 max_target = scan_info->cpi->max_target; 1972 low_target = 0; 1973 initiator_id = scan_info->cpi->initiator_id; 1974 1975 1976 /* 1977 * We can scan all targets in parallel, or do it sequentially. 1978 */ 1979 1980 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 1981 max_target = low_target = request_ccb->ccb_h.target_id; 1982 scan_info->counter = 0; 1983 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1984 max_target = 0; 1985 scan_info->counter = 0; 1986 } else { 1987 scan_info->counter = scan_info->cpi->max_target + 1; 1988 if (scan_info->cpi->initiator_id < scan_info->counter) { 1989 scan_info->counter--; 1990 } 1991 } 1992 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 1993 mtx_unlock(mtx); 1994 1995 for (i = low_target; i <= max_target; i++) { 1996 cam_status status; 1997 if (i == initiator_id) 1998 continue; 1999 2000 status = xpt_create_path(&path, NULL, 2001 request_ccb->ccb_h.path_id, 2002 i, 0); 2003 if (status != CAM_REQ_CMP) { 2004 printf("scsi_scan_bus: xpt_create_path failed" 2005 " with status %#x, bus scan halted\n", 2006 status); 2007 free(scan_info, M_CAMXPT); 2008 request_ccb->ccb_h.status = status; 2009 xpt_free_ccb(work_ccb); 2010 xpt_done(request_ccb); 2011 break; 2012 } 2013 work_ccb = xpt_alloc_ccb_nowait(); 2014 if (work_ccb == NULL) { 2015 xpt_free_ccb((union ccb *)scan_info->cpi); 2016 free(scan_info, M_CAMXPT); 2017 xpt_free_path(path); 2018 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2019 xpt_done(request_ccb); 2020 break; 2021 } 2022 xpt_setup_ccb(&work_ccb->ccb_h, path, 2023 request_ccb->ccb_h.pinfo.priority); 2024 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2025 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2026 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2027 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2028 work_ccb->crcn.flags = request_ccb->crcn.flags; 2029 xpt_action(work_ccb); 2030 } 2031 2032 mtx_lock(mtx); 2033 break; 2034 } 2035 case XPT_SCAN_LUN: 2036 { 2037 cam_status status; 2038 struct cam_path *path, *oldpath; 2039 scsi_scan_bus_info *scan_info; 2040 struct cam_et *target; 2041 struct cam_ed *device, *nextdev; 2042 int next_target; 2043 path_id_t path_id; 2044 target_id_t target_id; 2045 lun_id_t lun_id; 2046 2047 oldpath = request_ccb->ccb_h.path; 2048 2049 status = cam_ccb_status(request_ccb); 2050 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2051 path_id = request_ccb->ccb_h.path_id; 2052 target_id = request_ccb->ccb_h.target_id; 2053 lun_id = request_ccb->ccb_h.target_lun; 2054 target = request_ccb->ccb_h.path->target; 2055 next_target = 1; 2056 2057 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2058 mtx_lock(mtx); 2059 mtx_lock(&target->luns_mtx); 2060 if (target->luns) { 2061 lun_id_t first; 2062 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2063 2064 /* 2065 * Make sure we skip over lun 0 if it's the first member 2066 * of the list as we've actually just finished probing 2067 * it. 2068 */ 2069 CAM_GET_LUN(target->luns, 0, first); 2070 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2071 scan_info->lunindex[target_id]++; 2072 } 2073 2074 /* 2075 * Skip any LUNs that the HBA can't deal with. 2076 */ 2077 while (scan_info->lunindex[target_id] < nluns) { 2078 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2079 CAM_GET_LUN(target->luns, 2080 scan_info->lunindex[target_id], 2081 lun_id); 2082 break; 2083 } 2084 2085 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2086 scan_info->lunindex[target_id])) { 2087 CAM_GET_SIMPLE_LUN(target->luns, 2088 scan_info->lunindex[target_id], 2089 lun_id); 2090 break; 2091 } 2092 2093 scan_info->lunindex[target_id]++; 2094 } 2095 2096 if (scan_info->lunindex[target_id] < nluns) { 2097 mtx_unlock(&target->luns_mtx); 2098 next_target = 0; 2099 CAM_DEBUG(request_ccb->ccb_h.path, 2100 CAM_DEBUG_PROBE, 2101 ("next lun to try at index %u is %jx\n", 2102 scan_info->lunindex[target_id], 2103 (uintmax_t)lun_id)); 2104 scan_info->lunindex[target_id]++; 2105 } else { 2106 mtx_unlock(&target->luns_mtx); 2107 /* We're done with scanning all luns. */ 2108 } 2109 } else { 2110 mtx_unlock(&target->luns_mtx); 2111 device = request_ccb->ccb_h.path->device; 2112 /* Continue sequential LUN scan if: */ 2113 /* -- we have more LUNs that need recheck */ 2114 mtx_lock(&target->bus->eb_mtx); 2115 nextdev = device; 2116 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2117 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2118 break; 2119 mtx_unlock(&target->bus->eb_mtx); 2120 if (nextdev != NULL) { 2121 next_target = 0; 2122 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2123 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2124 next_target = 1; 2125 /* -- this LUN is connected and its SCSI version 2126 * allows more LUNs. */ 2127 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2128 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2129 CAN_SRCH_HI_DENSE(device)) 2130 next_target = 0; 2131 /* -- this LUN is disconnected, its SCSI version 2132 * allows more LUNs and we guess they may be. */ 2133 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2134 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2135 CAN_SRCH_HI_SPARSE(device)) 2136 next_target = 0; 2137 } 2138 if (next_target == 0) { 2139 lun_id++; 2140 if (lun_id > scan_info->cpi->max_lun) 2141 next_target = 1; 2142 } 2143 } 2144 2145 /* 2146 * Check to see if we scan any further luns. 2147 */ 2148 if (next_target) { 2149 int done; 2150 2151 /* 2152 * Free the current request path- we're done with it. 2153 */ 2154 xpt_free_path(oldpath); 2155 hop_again: 2156 done = 0; 2157 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2158 done = 1; 2159 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2160 scan_info->counter++; 2161 if (scan_info->counter == 2162 scan_info->cpi->initiator_id) { 2163 scan_info->counter++; 2164 } 2165 if (scan_info->counter >= 2166 scan_info->cpi->max_target+1) { 2167 done = 1; 2168 } 2169 } else { 2170 scan_info->counter--; 2171 if (scan_info->counter == 0) { 2172 done = 1; 2173 } 2174 } 2175 if (done) { 2176 mtx_unlock(mtx); 2177 xpt_free_ccb(request_ccb); 2178 xpt_free_ccb((union ccb *)scan_info->cpi); 2179 request_ccb = scan_info->request_ccb; 2180 CAM_DEBUG(request_ccb->ccb_h.path, 2181 CAM_DEBUG_TRACE, 2182 ("SCAN done for %p\n", scan_info)); 2183 free(scan_info, M_CAMXPT); 2184 request_ccb->ccb_h.status = CAM_REQ_CMP; 2185 xpt_done(request_ccb); 2186 break; 2187 } 2188 2189 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2190 mtx_unlock(mtx); 2191 xpt_free_ccb(request_ccb); 2192 break; 2193 } 2194 status = xpt_create_path(&path, NULL, 2195 scan_info->request_ccb->ccb_h.path_id, 2196 scan_info->counter, 0); 2197 if (status != CAM_REQ_CMP) { 2198 mtx_unlock(mtx); 2199 printf("scsi_scan_bus: xpt_create_path failed" 2200 " with status %#x, bus scan halted\n", 2201 status); 2202 xpt_free_ccb(request_ccb); 2203 xpt_free_ccb((union ccb *)scan_info->cpi); 2204 request_ccb = scan_info->request_ccb; 2205 free(scan_info, M_CAMXPT); 2206 request_ccb->ccb_h.status = status; 2207 xpt_done(request_ccb); 2208 break; 2209 } 2210 xpt_setup_ccb(&request_ccb->ccb_h, path, 2211 request_ccb->ccb_h.pinfo.priority); 2212 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2213 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2214 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2215 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2216 request_ccb->crcn.flags = 2217 scan_info->request_ccb->crcn.flags; 2218 } else { 2219 status = xpt_create_path(&path, NULL, 2220 path_id, target_id, lun_id); 2221 /* 2222 * Free the old request path- we're done with it. We 2223 * do this *after* creating the new path so that 2224 * we don't remove a target that has our lun list 2225 * in the case that lun 0 is not present. 2226 */ 2227 xpt_free_path(oldpath); 2228 if (status != CAM_REQ_CMP) { 2229 printf("scsi_scan_bus: xpt_create_path failed " 2230 "with status %#x, halting LUN scan\n", 2231 status); 2232 goto hop_again; 2233 } 2234 xpt_setup_ccb(&request_ccb->ccb_h, path, 2235 request_ccb->ccb_h.pinfo.priority); 2236 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2237 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2238 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2239 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2240 request_ccb->crcn.flags = 2241 scan_info->request_ccb->crcn.flags; 2242 } 2243 mtx_unlock(mtx); 2244 xpt_action(request_ccb); 2245 break; 2246 } 2247 default: 2248 break; 2249 } 2250 } 2251 2252 static void 2253 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2254 cam_flags flags, union ccb *request_ccb) 2255 { 2256 struct ccb_pathinq cpi; 2257 cam_status status; 2258 struct cam_path *new_path; 2259 struct cam_periph *old_periph; 2260 int lock; 2261 2262 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2263 2264 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2265 cpi.ccb_h.func_code = XPT_PATH_INQ; 2266 xpt_action((union ccb *)&cpi); 2267 2268 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2269 if (request_ccb != NULL) { 2270 request_ccb->ccb_h.status = cpi.ccb_h.status; 2271 xpt_done(request_ccb); 2272 } 2273 return; 2274 } 2275 2276 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2277 /* 2278 * Can't scan the bus on an adapter that 2279 * cannot perform the initiator role. 2280 */ 2281 if (request_ccb != NULL) { 2282 request_ccb->ccb_h.status = CAM_REQ_CMP; 2283 xpt_done(request_ccb); 2284 } 2285 return; 2286 } 2287 2288 if (request_ccb == NULL) { 2289 request_ccb = xpt_alloc_ccb_nowait(); 2290 if (request_ccb == NULL) { 2291 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2292 "can't continue\n"); 2293 return; 2294 } 2295 status = xpt_create_path(&new_path, NULL, 2296 path->bus->path_id, 2297 path->target->target_id, 2298 path->device->lun_id); 2299 if (status != CAM_REQ_CMP) { 2300 xpt_print(path, "scsi_scan_lun: can't create path, " 2301 "can't continue\n"); 2302 xpt_free_ccb(request_ccb); 2303 return; 2304 } 2305 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2306 request_ccb->ccb_h.cbfcnp = xptscandone; 2307 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2308 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2309 request_ccb->crcn.flags = flags; 2310 } 2311 2312 lock = (xpt_path_owned(path) == 0); 2313 if (lock) 2314 xpt_path_lock(path); 2315 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2316 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2317 probe_softc *softc; 2318 2319 softc = (probe_softc *)old_periph->softc; 2320 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2321 &request_ccb->ccb_h, periph_links.tqe); 2322 } else { 2323 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2324 xpt_done(request_ccb); 2325 } 2326 } else { 2327 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2328 probestart, "probe", 2329 CAM_PERIPH_BIO, 2330 request_ccb->ccb_h.path, NULL, 0, 2331 request_ccb); 2332 2333 if (status != CAM_REQ_CMP) { 2334 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2335 "returned an error, can't continue probe\n"); 2336 request_ccb->ccb_h.status = status; 2337 xpt_done(request_ccb); 2338 } 2339 } 2340 if (lock) 2341 xpt_path_unlock(path); 2342 } 2343 2344 static void 2345 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2346 { 2347 2348 xpt_free_path(done_ccb->ccb_h.path); 2349 xpt_free_ccb(done_ccb); 2350 } 2351 2352 static struct cam_ed * 2353 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2354 { 2355 struct scsi_quirk_entry *quirk; 2356 struct cam_ed *device; 2357 2358 device = xpt_alloc_device(bus, target, lun_id); 2359 if (device == NULL) 2360 return (NULL); 2361 2362 /* 2363 * Take the default quirk entry until we have inquiry 2364 * data and can determine a better quirk to use. 2365 */ 2366 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2367 device->quirk = (void *)quirk; 2368 device->mintags = quirk->mintags; 2369 device->maxtags = quirk->maxtags; 2370 bzero(&device->inq_data, sizeof(device->inq_data)); 2371 device->inq_flags = 0; 2372 device->queue_flags = 0; 2373 device->serial_num = NULL; 2374 device->serial_num_len = 0; 2375 device->device_id = NULL; 2376 device->device_id_len = 0; 2377 device->supported_vpds = NULL; 2378 device->supported_vpds_len = 0; 2379 return (device); 2380 } 2381 2382 static void 2383 scsi_devise_transport(struct cam_path *path) 2384 { 2385 struct ccb_pathinq cpi; 2386 struct ccb_trans_settings cts; 2387 struct scsi_inquiry_data *inq_buf; 2388 2389 /* Get transport information from the SIM */ 2390 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2391 cpi.ccb_h.func_code = XPT_PATH_INQ; 2392 xpt_action((union ccb *)&cpi); 2393 2394 inq_buf = NULL; 2395 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2396 inq_buf = &path->device->inq_data; 2397 path->device->protocol = PROTO_SCSI; 2398 path->device->protocol_version = 2399 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2400 path->device->transport = cpi.transport; 2401 path->device->transport_version = cpi.transport_version; 2402 2403 /* 2404 * Any device not using SPI3 features should 2405 * be considered SPI2 or lower. 2406 */ 2407 if (inq_buf != NULL) { 2408 if (path->device->transport == XPORT_SPI 2409 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2410 && path->device->transport_version > 2) 2411 path->device->transport_version = 2; 2412 } else { 2413 struct cam_ed* otherdev; 2414 2415 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2416 otherdev != NULL; 2417 otherdev = TAILQ_NEXT(otherdev, links)) { 2418 if (otherdev != path->device) 2419 break; 2420 } 2421 2422 if (otherdev != NULL) { 2423 /* 2424 * Initially assume the same versioning as 2425 * prior luns for this target. 2426 */ 2427 path->device->protocol_version = 2428 otherdev->protocol_version; 2429 path->device->transport_version = 2430 otherdev->transport_version; 2431 } else { 2432 /* Until we know better, opt for safety */ 2433 path->device->protocol_version = 2; 2434 if (path->device->transport == XPORT_SPI) 2435 path->device->transport_version = 2; 2436 else 2437 path->device->transport_version = 0; 2438 } 2439 } 2440 2441 /* 2442 * XXX 2443 * For a device compliant with SPC-2 we should be able 2444 * to determine the transport version supported by 2445 * scrutinizing the version descriptors in the 2446 * inquiry buffer. 2447 */ 2448 2449 /* Tell the controller what we think */ 2450 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2451 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2452 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2453 cts.transport = path->device->transport; 2454 cts.transport_version = path->device->transport_version; 2455 cts.protocol = path->device->protocol; 2456 cts.protocol_version = path->device->protocol_version; 2457 cts.proto_specific.valid = 0; 2458 cts.xport_specific.valid = 0; 2459 xpt_action((union ccb *)&cts); 2460 } 2461 2462 static void 2463 scsi_dev_advinfo(union ccb *start_ccb) 2464 { 2465 struct cam_ed *device; 2466 struct ccb_dev_advinfo *cdai; 2467 off_t amt; 2468 2469 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2470 device = start_ccb->ccb_h.path->device; 2471 cdai = &start_ccb->cdai; 2472 switch(cdai->buftype) { 2473 case CDAI_TYPE_SCSI_DEVID: 2474 if (cdai->flags & CDAI_FLAG_STORE) 2475 return; 2476 cdai->provsiz = device->device_id_len; 2477 if (device->device_id_len == 0) 2478 break; 2479 amt = device->device_id_len; 2480 if (cdai->provsiz > cdai->bufsiz) 2481 amt = cdai->bufsiz; 2482 memcpy(cdai->buf, device->device_id, amt); 2483 break; 2484 case CDAI_TYPE_SERIAL_NUM: 2485 if (cdai->flags & CDAI_FLAG_STORE) 2486 return; 2487 cdai->provsiz = device->serial_num_len; 2488 if (device->serial_num_len == 0) 2489 break; 2490 amt = device->serial_num_len; 2491 if (cdai->provsiz > cdai->bufsiz) 2492 amt = cdai->bufsiz; 2493 memcpy(cdai->buf, device->serial_num, amt); 2494 break; 2495 case CDAI_TYPE_PHYS_PATH: 2496 if (cdai->flags & CDAI_FLAG_STORE) { 2497 if (device->physpath != NULL) { 2498 free(device->physpath, M_CAMXPT); 2499 device->physpath = NULL; 2500 } 2501 device->physpath_len = cdai->bufsiz; 2502 /* Clear existing buffer if zero length */ 2503 if (cdai->bufsiz == 0) 2504 break; 2505 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2506 if (device->physpath == NULL) { 2507 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2508 return; 2509 } 2510 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2511 } else { 2512 cdai->provsiz = device->physpath_len; 2513 if (device->physpath_len == 0) 2514 break; 2515 amt = device->physpath_len; 2516 if (cdai->provsiz > cdai->bufsiz) 2517 amt = cdai->bufsiz; 2518 memcpy(cdai->buf, device->physpath, amt); 2519 } 2520 break; 2521 case CDAI_TYPE_RCAPLONG: 2522 if (cdai->flags & CDAI_FLAG_STORE) { 2523 if (device->rcap_buf != NULL) { 2524 free(device->rcap_buf, M_CAMXPT); 2525 device->rcap_buf = NULL; 2526 } 2527 2528 device->rcap_len = cdai->bufsiz; 2529 /* Clear existing buffer if zero length */ 2530 if (cdai->bufsiz == 0) 2531 break; 2532 2533 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2534 M_NOWAIT); 2535 if (device->rcap_buf == NULL) { 2536 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2537 return; 2538 } 2539 2540 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2541 } else { 2542 cdai->provsiz = device->rcap_len; 2543 if (device->rcap_len == 0) 2544 break; 2545 amt = device->rcap_len; 2546 if (cdai->provsiz > cdai->bufsiz) 2547 amt = cdai->bufsiz; 2548 memcpy(cdai->buf, device->rcap_buf, amt); 2549 } 2550 break; 2551 case CDAI_TYPE_EXT_INQ: 2552 /* 2553 * We fetch extended inquiry data during probe, if 2554 * available. We don't allow changing it. 2555 */ 2556 if (cdai->flags & CDAI_FLAG_STORE) 2557 return; 2558 cdai->provsiz = device->ext_inq_len; 2559 if (device->ext_inq_len == 0) 2560 break; 2561 amt = device->ext_inq_len; 2562 if (cdai->provsiz > cdai->bufsiz) 2563 amt = cdai->bufsiz; 2564 memcpy(cdai->buf, device->ext_inq, amt); 2565 break; 2566 default: 2567 return; 2568 } 2569 start_ccb->ccb_h.status = CAM_REQ_CMP; 2570 2571 if (cdai->flags & CDAI_FLAG_STORE) { 2572 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2573 (void *)(uintptr_t)cdai->buftype); 2574 } 2575 } 2576 2577 static void 2578 scsi_action(union ccb *start_ccb) 2579 { 2580 2581 switch (start_ccb->ccb_h.func_code) { 2582 case XPT_SET_TRAN_SETTINGS: 2583 { 2584 scsi_set_transfer_settings(&start_ccb->cts, 2585 start_ccb->ccb_h.path, 2586 /*async_update*/FALSE); 2587 break; 2588 } 2589 case XPT_SCAN_BUS: 2590 case XPT_SCAN_TGT: 2591 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2592 break; 2593 case XPT_SCAN_LUN: 2594 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2595 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2596 start_ccb); 2597 break; 2598 case XPT_DEV_ADVINFO: 2599 { 2600 scsi_dev_advinfo(start_ccb); 2601 break; 2602 } 2603 default: 2604 xpt_action_default(start_ccb); 2605 break; 2606 } 2607 } 2608 2609 static void 2610 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2611 int async_update) 2612 { 2613 struct ccb_pathinq cpi; 2614 struct ccb_trans_settings cur_cts; 2615 struct ccb_trans_settings_scsi *scsi; 2616 struct ccb_trans_settings_scsi *cur_scsi; 2617 struct scsi_inquiry_data *inq_data; 2618 struct cam_ed *device; 2619 2620 if (path == NULL || (device = path->device) == NULL) { 2621 cts->ccb_h.status = CAM_PATH_INVALID; 2622 xpt_done((union ccb *)cts); 2623 return; 2624 } 2625 2626 if (cts->protocol == PROTO_UNKNOWN 2627 || cts->protocol == PROTO_UNSPECIFIED) { 2628 cts->protocol = device->protocol; 2629 cts->protocol_version = device->protocol_version; 2630 } 2631 2632 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2633 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2634 cts->protocol_version = device->protocol_version; 2635 2636 if (cts->protocol != device->protocol) { 2637 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2638 cts->protocol, device->protocol); 2639 cts->protocol = device->protocol; 2640 } 2641 2642 if (cts->protocol_version > device->protocol_version) { 2643 if (bootverbose) { 2644 xpt_print(path, "Down reving Protocol " 2645 "Version from %d to %d?\n", cts->protocol_version, 2646 device->protocol_version); 2647 } 2648 cts->protocol_version = device->protocol_version; 2649 } 2650 2651 if (cts->transport == XPORT_UNKNOWN 2652 || cts->transport == XPORT_UNSPECIFIED) { 2653 cts->transport = device->transport; 2654 cts->transport_version = device->transport_version; 2655 } 2656 2657 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2658 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2659 cts->transport_version = device->transport_version; 2660 2661 if (cts->transport != device->transport) { 2662 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2663 cts->transport, device->transport); 2664 cts->transport = device->transport; 2665 } 2666 2667 if (cts->transport_version > device->transport_version) { 2668 if (bootverbose) { 2669 xpt_print(path, "Down reving Transport " 2670 "Version from %d to %d?\n", cts->transport_version, 2671 device->transport_version); 2672 } 2673 cts->transport_version = device->transport_version; 2674 } 2675 2676 /* 2677 * Nothing more of interest to do unless 2678 * this is a device connected via the 2679 * SCSI protocol. 2680 */ 2681 if (cts->protocol != PROTO_SCSI) { 2682 if (async_update == FALSE) 2683 xpt_action_default((union ccb *)cts); 2684 return; 2685 } 2686 2687 inq_data = &device->inq_data; 2688 scsi = &cts->proto_specific.scsi; 2689 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2690 cpi.ccb_h.func_code = XPT_PATH_INQ; 2691 xpt_action((union ccb *)&cpi); 2692 2693 /* SCSI specific sanity checking */ 2694 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2695 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2696 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2697 || (device->mintags == 0)) { 2698 /* 2699 * Can't tag on hardware that doesn't support tags, 2700 * doesn't have it enabled, or has broken tag support. 2701 */ 2702 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2703 } 2704 2705 if (async_update == FALSE) { 2706 /* 2707 * Perform sanity checking against what the 2708 * controller and device can do. 2709 */ 2710 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2711 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2712 cur_cts.type = cts->type; 2713 xpt_action((union ccb *)&cur_cts); 2714 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2715 return; 2716 } 2717 cur_scsi = &cur_cts.proto_specific.scsi; 2718 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2719 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2720 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2721 } 2722 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2723 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2724 } 2725 2726 /* SPI specific sanity checking */ 2727 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2728 u_int spi3caps; 2729 struct ccb_trans_settings_spi *spi; 2730 struct ccb_trans_settings_spi *cur_spi; 2731 2732 spi = &cts->xport_specific.spi; 2733 2734 cur_spi = &cur_cts.xport_specific.spi; 2735 2736 /* Fill in any gaps in what the user gave us */ 2737 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2738 spi->sync_period = cur_spi->sync_period; 2739 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2740 spi->sync_period = 0; 2741 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2742 spi->sync_offset = cur_spi->sync_offset; 2743 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2744 spi->sync_offset = 0; 2745 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2746 spi->ppr_options = cur_spi->ppr_options; 2747 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2748 spi->ppr_options = 0; 2749 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2750 spi->bus_width = cur_spi->bus_width; 2751 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2752 spi->bus_width = 0; 2753 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2754 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2755 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2756 } 2757 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2758 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2759 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2760 && (inq_data->flags & SID_Sync) == 0 2761 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2762 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2763 /* Force async */ 2764 spi->sync_period = 0; 2765 spi->sync_offset = 0; 2766 } 2767 2768 switch (spi->bus_width) { 2769 case MSG_EXT_WDTR_BUS_32_BIT: 2770 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2771 || (inq_data->flags & SID_WBus32) != 0 2772 || cts->type == CTS_TYPE_USER_SETTINGS) 2773 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2774 break; 2775 /* Fall Through to 16-bit */ 2776 case MSG_EXT_WDTR_BUS_16_BIT: 2777 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2778 || (inq_data->flags & SID_WBus16) != 0 2779 || cts->type == CTS_TYPE_USER_SETTINGS) 2780 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2781 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2782 break; 2783 } 2784 /* Fall Through to 8-bit */ 2785 default: /* New bus width?? */ 2786 case MSG_EXT_WDTR_BUS_8_BIT: 2787 /* All targets can do this */ 2788 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2789 break; 2790 } 2791 2792 spi3caps = cpi.xport_specific.spi.ppr_options; 2793 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2794 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2795 spi3caps &= inq_data->spi3data; 2796 2797 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2798 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2799 2800 if ((spi3caps & SID_SPI_IUS) == 0) 2801 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2802 2803 if ((spi3caps & SID_SPI_QAS) == 0) 2804 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2805 2806 /* No SPI Transfer settings are allowed unless we are wide */ 2807 if (spi->bus_width == 0) 2808 spi->ppr_options = 0; 2809 2810 if ((spi->valid & CTS_SPI_VALID_DISC) 2811 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2812 /* 2813 * Can't tag queue without disconnection. 2814 */ 2815 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2816 scsi->valid |= CTS_SCSI_VALID_TQ; 2817 } 2818 2819 /* 2820 * If we are currently performing tagged transactions to 2821 * this device and want to change its negotiation parameters, 2822 * go non-tagged for a bit to give the controller a chance to 2823 * negotiate unhampered by tag messages. 2824 */ 2825 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2826 && (device->inq_flags & SID_CmdQue) != 0 2827 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2828 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2829 CTS_SPI_VALID_SYNC_OFFSET| 2830 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2831 scsi_toggle_tags(path); 2832 } 2833 2834 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2835 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2836 int device_tagenb; 2837 2838 /* 2839 * If we are transitioning from tags to no-tags or 2840 * vice-versa, we need to carefully freeze and restart 2841 * the queue so that we don't overlap tagged and non-tagged 2842 * commands. We also temporarily stop tags if there is 2843 * a change in transfer negotiation settings to allow 2844 * "tag-less" negotiation. 2845 */ 2846 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2847 || (device->inq_flags & SID_CmdQue) != 0) 2848 device_tagenb = TRUE; 2849 else 2850 device_tagenb = FALSE; 2851 2852 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2853 && device_tagenb == FALSE) 2854 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2855 && device_tagenb == TRUE)) { 2856 2857 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2858 /* 2859 * Delay change to use tags until after a 2860 * few commands have gone to this device so 2861 * the controller has time to perform transfer 2862 * negotiations without tagged messages getting 2863 * in the way. 2864 */ 2865 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2866 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2867 } else { 2868 xpt_stop_tags(path); 2869 } 2870 } 2871 } 2872 if (async_update == FALSE) 2873 xpt_action_default((union ccb *)cts); 2874 } 2875 2876 static void 2877 scsi_toggle_tags(struct cam_path *path) 2878 { 2879 struct cam_ed *dev; 2880 2881 /* 2882 * Give controllers a chance to renegotiate 2883 * before starting tag operations. We 2884 * "toggle" tagged queuing off then on 2885 * which causes the tag enable command delay 2886 * counter to come into effect. 2887 */ 2888 dev = path->device; 2889 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2890 || ((dev->inq_flags & SID_CmdQue) != 0 2891 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2892 struct ccb_trans_settings cts; 2893 2894 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2895 cts.protocol = PROTO_SCSI; 2896 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2897 cts.transport = XPORT_UNSPECIFIED; 2898 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2899 cts.proto_specific.scsi.flags = 0; 2900 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2901 scsi_set_transfer_settings(&cts, path, 2902 /*async_update*/TRUE); 2903 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2904 scsi_set_transfer_settings(&cts, path, 2905 /*async_update*/TRUE); 2906 } 2907 } 2908 2909 /* 2910 * Handle any per-device event notifications that require action by the XPT. 2911 */ 2912 static void 2913 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2914 struct cam_ed *device, void *async_arg) 2915 { 2916 cam_status status; 2917 struct cam_path newpath; 2918 2919 /* 2920 * We only need to handle events for real devices. 2921 */ 2922 if (target->target_id == CAM_TARGET_WILDCARD 2923 || device->lun_id == CAM_LUN_WILDCARD) 2924 return; 2925 2926 /* 2927 * We need our own path with wildcards expanded to 2928 * handle certain types of events. 2929 */ 2930 if ((async_code == AC_SENT_BDR) 2931 || (async_code == AC_BUS_RESET) 2932 || (async_code == AC_INQ_CHANGED)) 2933 status = xpt_compile_path(&newpath, NULL, 2934 bus->path_id, 2935 target->target_id, 2936 device->lun_id); 2937 else 2938 status = CAM_REQ_CMP_ERR; 2939 2940 if (status == CAM_REQ_CMP) { 2941 2942 /* 2943 * Allow transfer negotiation to occur in a 2944 * tag free environment and after settle delay. 2945 */ 2946 if (async_code == AC_SENT_BDR 2947 || async_code == AC_BUS_RESET) { 2948 cam_freeze_devq(&newpath); 2949 cam_release_devq(&newpath, 2950 RELSIM_RELEASE_AFTER_TIMEOUT, 2951 /*reduction*/0, 2952 /*timeout*/scsi_delay, 2953 /*getcount_only*/0); 2954 scsi_toggle_tags(&newpath); 2955 } 2956 2957 if (async_code == AC_INQ_CHANGED) { 2958 /* 2959 * We've sent a start unit command, or 2960 * something similar to a device that 2961 * may have caused its inquiry data to 2962 * change. So we re-scan the device to 2963 * refresh the inquiry data for it. 2964 */ 2965 scsi_scan_lun(newpath.periph, &newpath, 2966 CAM_EXPECT_INQ_CHANGE, NULL); 2967 } 2968 xpt_release_path(&newpath); 2969 } else if (async_code == AC_LOST_DEVICE && 2970 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2971 device->flags |= CAM_DEV_UNCONFIGURED; 2972 xpt_release_device(device); 2973 } else if (async_code == AC_TRANSFER_NEG) { 2974 struct ccb_trans_settings *settings; 2975 struct cam_path path; 2976 2977 settings = (struct ccb_trans_settings *)async_arg; 2978 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 2979 device->lun_id); 2980 scsi_set_transfer_settings(settings, &path, 2981 /*async_update*/TRUE); 2982 xpt_release_path(&path); 2983 } 2984 } 2985 2986 static void 2987 scsi_announce_periph(struct cam_periph *periph) 2988 { 2989 struct ccb_pathinq cpi; 2990 struct ccb_trans_settings cts; 2991 struct cam_path *path = periph->path; 2992 u_int speed; 2993 u_int freq; 2994 u_int mb; 2995 2996 cam_periph_assert(periph, MA_OWNED); 2997 2998 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 2999 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3000 cts.type = CTS_TYPE_CURRENT_SETTINGS; 3001 xpt_action((union ccb*)&cts); 3002 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3003 return; 3004 /* Ask the SIM for its base transfer speed */ 3005 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3006 cpi.ccb_h.func_code = XPT_PATH_INQ; 3007 xpt_action((union ccb *)&cpi); 3008 /* Report connection speed */ 3009 speed = cpi.base_transfer_speed; 3010 freq = 0; 3011 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3012 struct ccb_trans_settings_spi *spi = 3013 &cts.xport_specific.spi; 3014 3015 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3016 && spi->sync_offset != 0) { 3017 freq = scsi_calc_syncsrate(spi->sync_period); 3018 speed = freq; 3019 } 3020 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3021 speed *= (0x01 << spi->bus_width); 3022 } 3023 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3024 struct ccb_trans_settings_fc *fc = 3025 &cts.xport_specific.fc; 3026 3027 if (fc->valid & CTS_FC_VALID_SPEED) 3028 speed = fc->bitrate; 3029 } 3030 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3031 struct ccb_trans_settings_sas *sas = 3032 &cts.xport_specific.sas; 3033 3034 if (sas->valid & CTS_SAS_VALID_SPEED) 3035 speed = sas->bitrate; 3036 } 3037 mb = speed / 1000; 3038 if (mb > 0) 3039 printf("%s%d: %d.%03dMB/s transfers", 3040 periph->periph_name, periph->unit_number, 3041 mb, speed % 1000); 3042 else 3043 printf("%s%d: %dKB/s transfers", periph->periph_name, 3044 periph->unit_number, speed); 3045 /* Report additional information about SPI connections */ 3046 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3047 struct ccb_trans_settings_spi *spi; 3048 3049 spi = &cts.xport_specific.spi; 3050 if (freq != 0) { 3051 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3052 freq % 1000, 3053 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3054 ? " DT" : "", 3055 spi->sync_offset); 3056 } 3057 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3058 && spi->bus_width > 0) { 3059 if (freq != 0) { 3060 printf(", "); 3061 } else { 3062 printf(" ("); 3063 } 3064 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3065 } else if (freq != 0) { 3066 printf(")"); 3067 } 3068 } 3069 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3070 struct ccb_trans_settings_fc *fc; 3071 3072 fc = &cts.xport_specific.fc; 3073 if (fc->valid & CTS_FC_VALID_WWNN) 3074 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3075 if (fc->valid & CTS_FC_VALID_WWPN) 3076 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3077 if (fc->valid & CTS_FC_VALID_PORT) 3078 printf(" PortID 0x%x", fc->port); 3079 } 3080 printf("\n"); 3081 } 3082 3083