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