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: stable/10/sys/cam/scsi/scsi_xpt.c 344394 2019-02-20 22:49:09Z dab $"); 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 67struct 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 80static int cam_srch_hi = 0; 81TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi); 82static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 83SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0, 84 sysctl_cam_search_luns, "I", 85 "allow search above LUN 7 for SCSI3 and greater devices"); 86 87#define CAM_SCSI2_MAXLUN 8 88#define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 89 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_PERIPH) || \ 91 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 92 RPL_LUNDATA_ATYP_FLAT)) 93#define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 94 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 95 RPL_LUNDATA_ATYP_PERIPH) { \ 96 (lval) = (lp)->luns[(i)].lundata[1]; \ 97 } else { \ 98 (lval) = (lp)->luns[(i)].lundata[0]; \ 99 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 100 (lval) <<= 8; \ 101 (lval) |= (lp)->luns[(i)].lundata[1]; \ 102 } 103#define CAM_GET_LUN(lp, i, lval) \ 104 (lval) = scsi_4btoul((lp)->luns[(i)].lundata); \ 105 (lval) = ((lval) >> 16) | ((lval) << 16); 106#define CAM_LUN_ONLY_32BITS(lp, i) \ 107 (scsi_4btoul(&((lp)->luns[(i)].lundata[4])) == 0) 108 109/* 110 * If we're not quirked to search <= the first 8 luns 111 * and we are either quirked to search above lun 8, 112 * or we're > SCSI-2 and we've enabled hilun searching, 113 * or we're > SCSI-2 and the last lun was a success, 114 * we can look for luns above lun 8. 115 */ 116#define CAN_SRCH_HI_SPARSE(dv) \ 117 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 118 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 119 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 120 121#define CAN_SRCH_HI_DENSE(dv) \ 122 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 123 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 124 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 125 126static periph_init_t probe_periph_init; 127 128static struct periph_driver probe_driver = 129{ 130 probe_periph_init, "probe", 131 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 132 CAM_PERIPH_DRV_EARLY 133}; 134 135PERIPHDRIVER_DECLARE(probe, probe_driver); 136 137typedef enum { 138 PROBE_TUR, 139 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 140 PROBE_FULL_INQUIRY, 141 PROBE_REPORT_LUNS, 142 PROBE_MODE_SENSE, 143 PROBE_SUPPORTED_VPD_LIST, 144 PROBE_DEVICE_ID, 145 PROBE_EXTENDED_INQUIRY, 146 PROBE_SERIAL_NUM, 147 PROBE_TUR_FOR_NEGOTIATION, 148 PROBE_INQUIRY_BASIC_DV1, 149 PROBE_INQUIRY_BASIC_DV2, 150 PROBE_DV_EXIT, 151 PROBE_DONE, 152 PROBE_INVALID 153} probe_action; 154 155static char *probe_action_text[] = { 156 "PROBE_TUR", 157 "PROBE_INQUIRY", 158 "PROBE_FULL_INQUIRY", 159 "PROBE_REPORT_LUNS", 160 "PROBE_MODE_SENSE", 161 "PROBE_SUPPORTED_VPD_LIST", 162 "PROBE_DEVICE_ID", 163 "PROBE_EXTENDED_INQUIRY", 164 "PROBE_SERIAL_NUM", 165 "PROBE_TUR_FOR_NEGOTIATION", 166 "PROBE_INQUIRY_BASIC_DV1", 167 "PROBE_INQUIRY_BASIC_DV2", 168 "PROBE_DV_EXIT", 169 "PROBE_DONE", 170 "PROBE_INVALID" 171}; 172 173#define PROBE_SET_ACTION(softc, newaction) \ 174do { \ 175 char **text; \ 176 text = probe_action_text; \ 177 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 178 ("Probe %s to %s\n", text[(softc)->action], \ 179 text[(newaction)])); \ 180 (softc)->action = (newaction); \ 181} while(0) 182 183typedef enum { 184 PROBE_INQUIRY_CKSUM = 0x01, 185 PROBE_SERIAL_CKSUM = 0x02, 186 PROBE_NO_ANNOUNCE = 0x04, 187 PROBE_EXTLUN = 0x08 188} probe_flags; 189 190typedef struct { 191 TAILQ_HEAD(, ccb_hdr) request_ccbs; 192 probe_action action; 193 union ccb saved_ccb; 194 probe_flags flags; 195 MD5_CTX context; 196 u_int8_t digest[16]; 197 struct cam_periph *periph; 198} probe_softc; 199 200static const char quantum[] = "QUANTUM"; 201static const char sony[] = "SONY"; 202static const char west_digital[] = "WDIGTL"; 203static const char samsung[] = "SAMSUNG"; 204static const char seagate[] = "SEAGATE"; 205static const char microp[] = "MICROP"; 206 207static struct scsi_quirk_entry scsi_quirk_table[] = 208{ 209 { 210 /* Reports QUEUE FULL for temporary resource shortages */ 211 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 212 /*quirks*/0, /*mintags*/24, /*maxtags*/32 213 }, 214 { 215 /* Reports QUEUE FULL for temporary resource shortages */ 216 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 217 /*quirks*/0, /*mintags*/24, /*maxtags*/32 218 }, 219 { 220 /* Reports QUEUE FULL for temporary resource shortages */ 221 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 222 /*quirks*/0, /*mintags*/24, /*maxtags*/32 223 }, 224 { 225 /* Broken tagged queuing drive */ 226 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 227 /*quirks*/0, /*mintags*/0, /*maxtags*/0 228 }, 229 { 230 /* Broken tagged queuing drive */ 231 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 232 /*quirks*/0, /*mintags*/0, /*maxtags*/0 233 }, 234 { 235 /* Broken tagged queuing drive */ 236 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 237 /*quirks*/0, /*mintags*/0, /*maxtags*/0 238 }, 239 { 240 /* 241 * Unfortunately, the Quantum Atlas III has the same 242 * problem as the Atlas II drives above. 243 * Reported by: "Johan Granlund" <johan@granlund.nu> 244 * 245 * For future reference, the drive with the problem was: 246 * QUANTUM QM39100TD-SW N1B0 247 * 248 * It's possible that Quantum will fix the problem in later 249 * firmware revisions. If that happens, the quirk entry 250 * will need to be made specific to the firmware revisions 251 * with the problem. 252 * 253 */ 254 /* Reports QUEUE FULL for temporary resource shortages */ 255 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 256 /*quirks*/0, /*mintags*/24, /*maxtags*/32 257 }, 258 { 259 /* 260 * 18 Gig Atlas III, same problem as the 9G version. 261 * Reported by: Andre Albsmeier 262 * <andre.albsmeier@mchp.siemens.de> 263 * 264 * For future reference, the drive with the problem was: 265 * QUANTUM QM318000TD-S N491 266 */ 267 /* Reports QUEUE FULL for temporary resource shortages */ 268 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 269 /*quirks*/0, /*mintags*/24, /*maxtags*/32 270 }, 271 { 272 /* 273 * Broken tagged queuing drive 274 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 275 * and: Martin Renters <martin@tdc.on.ca> 276 */ 277 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 278 /*quirks*/0, /*mintags*/0, /*maxtags*/0 279 }, 280 /* 281 * The Seagate Medalist Pro drives have very poor write 282 * performance with anything more than 2 tags. 283 * 284 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 285 * Drive: <SEAGATE ST36530N 1444> 286 * 287 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 288 * Drive: <SEAGATE ST34520W 1281> 289 * 290 * No one has actually reported that the 9G version 291 * (ST39140*) of the Medalist Pro has the same problem, but 292 * we're assuming that it does because the 4G and 6.5G 293 * versions of the drive are broken. 294 */ 295 { 296 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 297 /*quirks*/0, /*mintags*/2, /*maxtags*/2 298 }, 299 { 300 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 301 /*quirks*/0, /*mintags*/2, /*maxtags*/2 302 }, 303 { 304 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 305 /*quirks*/0, /*mintags*/2, /*maxtags*/2 306 }, 307 { 308 /* 309 * Experiences command timeouts under load with a 310 * tag count higher than 55. 311 */ 312 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 313 /*quirks*/0, /*mintags*/2, /*maxtags*/55 314 }, 315 { 316 /* 317 * Slow when tagged queueing is enabled. Write performance 318 * steadily drops off with more and more concurrent 319 * transactions. Best sequential write performance with 320 * tagged queueing turned off and write caching turned on. 321 * 322 * PR: kern/10398 323 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 324 * Drive: DCAS-34330 w/ "S65A" firmware. 325 * 326 * The drive with the problem had the "S65A" firmware 327 * revision, and has also been reported (by Stephen J. 328 * Roznowski <sjr@home.net>) for a drive with the "S61A" 329 * firmware revision. 330 * 331 * Although no one has reported problems with the 2 gig 332 * version of the DCAS drive, the assumption is that it 333 * has the same problems as the 4 gig version. Therefore 334 * this quirk entries disables tagged queueing for all 335 * DCAS drives. 336 */ 337 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 338 /*quirks*/0, /*mintags*/0, /*maxtags*/0 339 }, 340 { 341 /* Broken tagged queuing drive */ 342 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 343 /*quirks*/0, /*mintags*/0, /*maxtags*/0 344 }, 345 { 346 /* Broken tagged queuing drive */ 347 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 348 /*quirks*/0, /*mintags*/0, /*maxtags*/0 349 }, 350 { 351 /* This does not support other than LUN 0 */ 352 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 353 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 354 }, 355 { 356 /* 357 * Broken tagged queuing drive. 358 * Submitted by: 359 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 360 * in PR kern/9535 361 */ 362 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 363 /*quirks*/0, /*mintags*/0, /*maxtags*/0 364 }, 365 { 366 /* 367 * Slow when tagged queueing is enabled. (1.5MB/sec versus 368 * 8MB/sec.) 369 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 370 * Best performance with these drives is achieved with 371 * tagged queueing turned off, and write caching turned on. 372 */ 373 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 374 /*quirks*/0, /*mintags*/0, /*maxtags*/0 375 }, 376 { 377 /* 378 * Slow when tagged queueing is enabled. (1.5MB/sec versus 379 * 8MB/sec.) 380 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 381 * Best performance with these drives is achieved with 382 * tagged queueing turned off, and write caching turned on. 383 */ 384 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 385 /*quirks*/0, /*mintags*/0, /*maxtags*/0 386 }, 387 { 388 /* 389 * Doesn't handle queue full condition correctly, 390 * so we need to limit maxtags to what the device 391 * can handle instead of determining this automatically. 392 */ 393 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 394 /*quirks*/0, /*mintags*/2, /*maxtags*/32 395 }, 396 { 397 /* Really only one LUN */ 398 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 399 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 400 }, 401 { 402 /* I can't believe we need a quirk for DPT volumes. */ 403 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 404 CAM_QUIRK_NOLUNS, 405 /*mintags*/0, /*maxtags*/255 406 }, 407 { 408 /* 409 * Many Sony CDROM drives don't like multi-LUN probing. 410 */ 411 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 412 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 413 }, 414 { 415 /* 416 * This drive doesn't like multiple LUN probing. 417 * Submitted by: Parag Patel <parag@cgt.com> 418 */ 419 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 420 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 421 }, 422 { 423 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 424 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 425 }, 426 { 427 /* 428 * The 8200 doesn't like multi-lun probing, and probably 429 * don't like serial number requests either. 430 */ 431 { 432 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 433 "EXB-8200*", "*" 434 }, 435 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 436 }, 437 { 438 /* 439 * Let's try the same as above, but for a drive that says 440 * it's an IPL-6860 but is actually an EXB 8200. 441 */ 442 { 443 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 444 "IPL-6860*", "*" 445 }, 446 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 447 }, 448 { 449 /* 450 * These Hitachi drives don't like multi-lun probing. 451 * The PR submitter has a DK319H, but says that the Linux 452 * kernel has a similar work-around for the DK312 and DK314, 453 * so all DK31* drives are quirked here. 454 * PR: misc/18793 455 * Submitted by: Paul Haddad <paul@pth.com> 456 */ 457 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 458 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 459 }, 460 { 461 /* 462 * The Hitachi CJ series with J8A8 firmware apparently has 463 * problems with tagged commands. 464 * PR: 23536 465 * Reported by: amagai@nue.org 466 */ 467 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 468 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 469 }, 470 { 471 /* 472 * These are the large storage arrays. 473 * Submitted by: William Carrel <william.carrel@infospace.com> 474 */ 475 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 476 CAM_QUIRK_HILUNS, 2, 1024 477 }, 478 { 479 /* 480 * This old revision of the TDC3600 is also SCSI-1, and 481 * hangs upon serial number probing. 482 */ 483 { 484 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 485 " TDC 3600", "U07:" 486 }, 487 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 488 }, 489 { 490 /* 491 * Would repond to all LUNs if asked for. 492 */ 493 { 494 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 495 "CP150", "*" 496 }, 497 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 498 }, 499 { 500 /* 501 * Would repond to all LUNs if asked for. 502 */ 503 { 504 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 505 "96X2*", "*" 506 }, 507 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 508 }, 509 { 510 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 511 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 512 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 513 }, 514 { 515 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 516 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 517 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 518 }, 519 { 520 /* TeraSolutions special settings for TRC-22 RAID */ 521 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 522 /*quirks*/0, /*mintags*/55, /*maxtags*/255 523 }, 524 { 525 /* Veritas Storage Appliance */ 526 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 527 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 528 }, 529 { 530 /* 531 * Would respond to all LUNs. Device type and removable 532 * flag are jumper-selectable. 533 */ 534 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 535 "Tahiti 1", "*" 536 }, 537 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 538 }, 539 { 540 /* EasyRAID E5A aka. areca ARC-6010 */ 541 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 542 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 543 }, 544 { 545 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 546 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 547 }, 548 { 549 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 550 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 551 }, 552 { 553 /* Default tagged queuing parameters for all devices */ 554 { 555 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 556 /*vendor*/"*", /*product*/"*", /*revision*/"*" 557 }, 558 /*quirks*/0, /*mintags*/2, /*maxtags*/255 559 }, 560}; 561 562static const int scsi_quirk_table_size = 563 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table); 564 565static cam_status proberegister(struct cam_periph *periph, 566 void *arg); 567static void probeschedule(struct cam_periph *probe_periph); 568static void probestart(struct cam_periph *periph, union ccb *start_ccb); 569static void proberequestdefaultnegotiation(struct cam_periph *periph); 570static int proberequestbackoff(struct cam_periph *periph, 571 struct cam_ed *device); 572static void probedone(struct cam_periph *periph, union ccb *done_ccb); 573static void probe_purge_old(struct cam_path *path, 574 struct scsi_report_luns_data *new, 575 probe_flags flags); 576static void probecleanup(struct cam_periph *periph); 577static void scsi_find_quirk(struct cam_ed *device); 578static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 579static void scsi_scan_lun(struct cam_periph *periph, 580 struct cam_path *path, cam_flags flags, 581 union ccb *ccb); 582static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 583static struct cam_ed * 584 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 585 lun_id_t lun_id); 586static void scsi_devise_transport(struct cam_path *path); 587static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 588 struct cam_path *path, 589 int async_update); 590static void scsi_toggle_tags(struct cam_path *path); 591static void scsi_dev_async(u_int32_t async_code, 592 struct cam_eb *bus, 593 struct cam_et *target, 594 struct cam_ed *device, 595 void *async_arg); 596static void scsi_action(union ccb *start_ccb); 597static void scsi_announce_periph(struct cam_periph *periph); 598 599static struct xpt_xport scsi_xport = { 600 .alloc_device = scsi_alloc_device, 601 .action = scsi_action, 602 .async = scsi_dev_async, 603 .announce = scsi_announce_periph, 604}; 605 606struct xpt_xport * 607scsi_get_xport(void) 608{ 609 return (&scsi_xport); 610} 611 612static void 613probe_periph_init() 614{ 615} 616 617static cam_status 618proberegister(struct cam_periph *periph, void *arg) 619{ 620 union ccb *request_ccb; /* CCB representing the probe request */ 621 cam_status status; 622 probe_softc *softc; 623 624 request_ccb = (union ccb *)arg; 625 if (request_ccb == NULL) { 626 printf("proberegister: no probe CCB, " 627 "can't register device\n"); 628 return(CAM_REQ_CMP_ERR); 629 } 630 631 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 632 633 if (softc == NULL) { 634 printf("proberegister: Unable to probe new device. " 635 "Unable to allocate softc\n"); 636 return(CAM_REQ_CMP_ERR); 637 } 638 TAILQ_INIT(&softc->request_ccbs); 639 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 640 periph_links.tqe); 641 softc->flags = 0; 642 periph->softc = softc; 643 softc->periph = periph; 644 softc->action = PROBE_INVALID; 645 status = cam_periph_acquire(periph); 646 if (status != CAM_REQ_CMP) { 647 return (status); 648 } 649 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 650 scsi_devise_transport(periph->path); 651 652 /* 653 * Ensure we've waited at least a bus settle 654 * delay before attempting to probe the device. 655 * For HBAs that don't do bus resets, this won't make a difference. 656 */ 657 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 658 scsi_delay); 659 probeschedule(periph); 660 return(CAM_REQ_CMP); 661} 662 663static void 664probeschedule(struct cam_periph *periph) 665{ 666 struct ccb_pathinq cpi; 667 union ccb *ccb; 668 probe_softc *softc; 669 670 softc = (probe_softc *)periph->softc; 671 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 672 673 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 674 cpi.ccb_h.func_code = XPT_PATH_INQ; 675 xpt_action((union ccb *)&cpi); 676 677 /* 678 * If a device has gone away and another device, or the same one, 679 * is back in the same place, it should have a unit attention 680 * condition pending. It will not report the unit attention in 681 * response to an inquiry, which may leave invalid transfer 682 * negotiations in effect. The TUR will reveal the unit attention 683 * condition. Only send the TUR for lun 0, since some devices 684 * will get confused by commands other than inquiry to non-existent 685 * luns. If you think a device has gone away start your scan from 686 * lun 0. This will insure that any bogus transfer settings are 687 * invalidated. 688 * 689 * If we haven't seen the device before and the controller supports 690 * some kind of transfer negotiation, negotiate with the first 691 * sent command if no bus reset was performed at startup. This 692 * ensures that the device is not confused by transfer negotiation 693 * settings left over by loader or BIOS action. 694 */ 695 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 696 && (ccb->ccb_h.target_lun == 0)) { 697 PROBE_SET_ACTION(softc, PROBE_TUR); 698 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 699 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 700 proberequestdefaultnegotiation(periph); 701 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 702 } else { 703 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 704 } 705 706 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 707 softc->flags |= PROBE_NO_ANNOUNCE; 708 else 709 softc->flags &= ~PROBE_NO_ANNOUNCE; 710 711 if (cpi.hba_misc & PIM_EXTLUNS) 712 softc->flags |= PROBE_EXTLUN; 713 else 714 softc->flags &= ~PROBE_EXTLUN; 715 716 xpt_schedule(periph, CAM_PRIORITY_XPT); 717} 718 719static void 720probestart(struct cam_periph *periph, union ccb *start_ccb) 721{ 722 /* Probe the device that our peripheral driver points to */ 723 struct ccb_scsiio *csio; 724 probe_softc *softc; 725 726 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 727 728 softc = (probe_softc *)periph->softc; 729 csio = &start_ccb->csio; 730again: 731 732 switch (softc->action) { 733 case PROBE_TUR: 734 case PROBE_TUR_FOR_NEGOTIATION: 735 case PROBE_DV_EXIT: 736 { 737 scsi_test_unit_ready(csio, 738 /*retries*/4, 739 probedone, 740 MSG_SIMPLE_Q_TAG, 741 SSD_FULL_SIZE, 742 /*timeout*/60000); 743 break; 744 } 745 case PROBE_INQUIRY: 746 case PROBE_FULL_INQUIRY: 747 case PROBE_INQUIRY_BASIC_DV1: 748 case PROBE_INQUIRY_BASIC_DV2: 749 { 750 u_int inquiry_len; 751 struct scsi_inquiry_data *inq_buf; 752 753 inq_buf = &periph->path->device->inq_data; 754 755 /* 756 * If the device is currently configured, we calculate an 757 * MD5 checksum of the inquiry data, and if the serial number 758 * length is greater than 0, add the serial number data 759 * into the checksum as well. Once the inquiry and the 760 * serial number check finish, we attempt to figure out 761 * whether we still have the same device. 762 */ 763 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 764 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 765 766 MD5Init(&softc->context); 767 MD5Update(&softc->context, (unsigned char *)inq_buf, 768 sizeof(struct scsi_inquiry_data)); 769 softc->flags |= PROBE_INQUIRY_CKSUM; 770 if (periph->path->device->serial_num_len > 0) { 771 MD5Update(&softc->context, 772 periph->path->device->serial_num, 773 periph->path->device->serial_num_len); 774 softc->flags |= PROBE_SERIAL_CKSUM; 775 } 776 MD5Final(softc->digest, &softc->context); 777 } 778 779 if (softc->action == PROBE_INQUIRY) 780 inquiry_len = SHORT_INQUIRY_LENGTH; 781 else 782 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 783 784 /* 785 * Some parallel SCSI devices fail to send an 786 * ignore wide residue message when dealing with 787 * odd length inquiry requests. Round up to be 788 * safe. 789 */ 790 inquiry_len = roundup2(inquiry_len, 2); 791 792 if (softc->action == PROBE_INQUIRY_BASIC_DV1 793 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 794 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 795 } 796 if (inq_buf == NULL) { 797 xpt_print(periph->path, "malloc failure- skipping Basic" 798 "Domain Validation\n"); 799 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 800 scsi_test_unit_ready(csio, 801 /*retries*/4, 802 probedone, 803 MSG_SIMPLE_Q_TAG, 804 SSD_FULL_SIZE, 805 /*timeout*/60000); 806 break; 807 } 808 scsi_inquiry(csio, 809 /*retries*/4, 810 probedone, 811 MSG_SIMPLE_Q_TAG, 812 (u_int8_t *)inq_buf, 813 inquiry_len, 814 /*evpd*/FALSE, 815 /*page_code*/0, 816 SSD_MIN_SIZE, 817 /*timeout*/60 * 1000); 818 break; 819 } 820 case PROBE_REPORT_LUNS: 821 { 822 void *rp; 823 824 rp = malloc(periph->path->target->rpl_size, 825 M_CAMXPT, M_NOWAIT | M_ZERO); 826 if (rp == NULL) { 827 struct scsi_inquiry_data *inq_buf; 828 inq_buf = &periph->path->device->inq_data; 829 xpt_print(periph->path, 830 "Unable to alloc report luns storage\n"); 831 if (INQ_DATA_TQ_ENABLED(inq_buf)) 832 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 833 else 834 PROBE_SET_ACTION(softc, 835 PROBE_SUPPORTED_VPD_LIST); 836 goto again; 837 } 838 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 839 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 840 SSD_FULL_SIZE, 60000); break; 841 break; 842 } 843 case PROBE_MODE_SENSE: 844 { 845 void *mode_buf; 846 int mode_buf_len; 847 848 mode_buf_len = sizeof(struct scsi_mode_header_6) 849 + sizeof(struct scsi_mode_blk_desc) 850 + sizeof(struct scsi_control_page); 851 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 852 if (mode_buf != NULL) { 853 scsi_mode_sense(csio, 854 /*retries*/4, 855 probedone, 856 MSG_SIMPLE_Q_TAG, 857 /*dbd*/FALSE, 858 SMS_PAGE_CTRL_CURRENT, 859 SMS_CONTROL_MODE_PAGE, 860 mode_buf, 861 mode_buf_len, 862 SSD_FULL_SIZE, 863 /*timeout*/60000); 864 break; 865 } 866 xpt_print(periph->path, "Unable to mode sense control page - " 867 "malloc failure\n"); 868 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 869 } 870 /* FALLTHROUGH */ 871 case PROBE_SUPPORTED_VPD_LIST: 872 { 873 struct scsi_vpd_supported_page_list *vpd_list; 874 struct cam_ed *device; 875 876 vpd_list = NULL; 877 device = periph->path->device; 878 879 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 880 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 881 M_NOWAIT | M_ZERO); 882 883 if (vpd_list != NULL) { 884 scsi_inquiry(csio, 885 /*retries*/4, 886 probedone, 887 MSG_SIMPLE_Q_TAG, 888 (u_int8_t *)vpd_list, 889 sizeof(*vpd_list), 890 /*evpd*/TRUE, 891 SVPD_SUPPORTED_PAGE_LIST, 892 SSD_MIN_SIZE, 893 /*timeout*/60 * 1000); 894 break; 895 } 896done: 897 /* 898 * We'll have to do without, let our probedone 899 * routine finish up for us. 900 */ 901 start_ccb->csio.data_ptr = NULL; 902 cam_freeze_devq(periph->path); 903 cam_periph_doacquire(periph); 904 probedone(periph, start_ccb); 905 return; 906 } 907 case PROBE_DEVICE_ID: 908 { 909 struct scsi_vpd_device_id *devid; 910 911 devid = NULL; 912 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 913 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 914 M_NOWAIT | M_ZERO); 915 916 if (devid != NULL) { 917 scsi_inquiry(csio, 918 /*retries*/4, 919 probedone, 920 MSG_SIMPLE_Q_TAG, 921 (uint8_t *)devid, 922 SVPD_DEVICE_ID_MAX_SIZE, 923 /*evpd*/TRUE, 924 SVPD_DEVICE_ID, 925 SSD_MIN_SIZE, 926 /*timeout*/60 * 1000); 927 break; 928 } 929 goto done; 930 } 931 case PROBE_EXTENDED_INQUIRY: 932 { 933 struct scsi_vpd_extended_inquiry_data *ext_inq; 934 935 ext_inq = NULL; 936 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 937 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 938 M_NOWAIT | M_ZERO); 939 940 if (ext_inq != NULL) { 941 scsi_inquiry(csio, 942 /*retries*/4, 943 probedone, 944 MSG_SIMPLE_Q_TAG, 945 (uint8_t *)ext_inq, 946 sizeof(*ext_inq), 947 /*evpd*/TRUE, 948 SVPD_EXTENDED_INQUIRY_DATA, 949 SSD_MIN_SIZE, 950 /*timeout*/60 * 1000); 951 break; 952 } 953 /* 954 * We'll have to do without, let our probedone 955 * routine finish up for us. 956 */ 957 goto done; 958 } 959 case PROBE_SERIAL_NUM: 960 { 961 struct scsi_vpd_unit_serial_number *serial_buf; 962 struct cam_ed* device; 963 964 serial_buf = NULL; 965 device = periph->path->device; 966 if (device->serial_num != NULL) { 967 free(device->serial_num, M_CAMXPT); 968 device->serial_num = NULL; 969 device->serial_num_len = 0; 970 } 971 972 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 973 serial_buf = (struct scsi_vpd_unit_serial_number *) 974 malloc(sizeof(*serial_buf), M_CAMXPT, 975 M_NOWAIT|M_ZERO); 976 977 if (serial_buf != NULL) { 978 scsi_inquiry(csio, 979 /*retries*/4, 980 probedone, 981 MSG_SIMPLE_Q_TAG, 982 (u_int8_t *)serial_buf, 983 sizeof(*serial_buf), 984 /*evpd*/TRUE, 985 SVPD_UNIT_SERIAL_NUMBER, 986 SSD_MIN_SIZE, 987 /*timeout*/60 * 1000); 988 break; 989 } 990 goto done; 991 } 992 default: 993 panic("probestart: invalid action state 0x%x\n", softc->action); 994 } 995 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 996 cam_periph_doacquire(periph); 997 xpt_action(start_ccb); 998} 999 1000static void 1001proberequestdefaultnegotiation(struct cam_periph *periph) 1002{ 1003 struct ccb_trans_settings cts; 1004 1005 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1006 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1007 cts.type = CTS_TYPE_USER_SETTINGS; 1008 xpt_action((union ccb *)&cts); 1009 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1010 return; 1011 } 1012 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1013 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1014 xpt_action((union ccb *)&cts); 1015} 1016 1017/* 1018 * Backoff Negotiation Code- only pertinent for SPI devices. 1019 */ 1020static int 1021proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1022{ 1023 struct ccb_trans_settings cts; 1024 struct ccb_trans_settings_spi *spi; 1025 1026 memset(&cts, 0, sizeof (cts)); 1027 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1028 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1029 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1030 xpt_action((union ccb *)&cts); 1031 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1032 if (bootverbose) { 1033 xpt_print(periph->path, 1034 "failed to get current device settings\n"); 1035 } 1036 return (0); 1037 } 1038 if (cts.transport != XPORT_SPI) { 1039 if (bootverbose) { 1040 xpt_print(periph->path, "not SPI transport\n"); 1041 } 1042 return (0); 1043 } 1044 spi = &cts.xport_specific.spi; 1045 1046 /* 1047 * We cannot renegotiate sync rate if we don't have one. 1048 */ 1049 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1050 if (bootverbose) { 1051 xpt_print(periph->path, "no sync rate known\n"); 1052 } 1053 return (0); 1054 } 1055 1056 /* 1057 * We'll assert that we don't have to touch PPR options- the 1058 * SIM will see what we do with period and offset and adjust 1059 * the PPR options as appropriate. 1060 */ 1061 1062 /* 1063 * A sync rate with unknown or zero offset is nonsensical. 1064 * A sync period of zero means Async. 1065 */ 1066 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1067 || spi->sync_offset == 0 || spi->sync_period == 0) { 1068 if (bootverbose) { 1069 xpt_print(periph->path, "no sync rate available\n"); 1070 } 1071 return (0); 1072 } 1073 1074 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1075 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1076 ("hit async: giving up on DV\n")); 1077 return (0); 1078 } 1079 1080 1081 /* 1082 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1083 * We don't try to remember 'last' settings to see if the SIM actually 1084 * gets into the speed we want to set. We check on the SIM telling 1085 * us that a requested speed is bad, but otherwise don't try and 1086 * check the speed due to the asynchronous and handshake nature 1087 * of speed setting. 1088 */ 1089 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1090 for (;;) { 1091 spi->sync_period++; 1092 if (spi->sync_period >= 0xf) { 1093 spi->sync_period = 0; 1094 spi->sync_offset = 0; 1095 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1096 ("setting to async for DV\n")); 1097 /* 1098 * Once we hit async, we don't want to try 1099 * any more settings. 1100 */ 1101 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1102 } else if (bootverbose) { 1103 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1104 ("DV: period 0x%x\n", spi->sync_period)); 1105 printf("setting period to 0x%x\n", spi->sync_period); 1106 } 1107 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1108 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1109 xpt_action((union ccb *)&cts); 1110 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1111 break; 1112 } 1113 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1114 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1115 if (spi->sync_period == 0) { 1116 return (0); 1117 } 1118 } 1119 return (1); 1120} 1121 1122#define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1123 1124static void 1125probedone(struct cam_periph *periph, union ccb *done_ccb) 1126{ 1127 probe_softc *softc; 1128 struct cam_path *path; 1129 struct scsi_inquiry_data *inq_buf; 1130 u_int32_t priority; 1131 1132 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1133 1134 softc = (probe_softc *)periph->softc; 1135 path = done_ccb->ccb_h.path; 1136 priority = done_ccb->ccb_h.pinfo.priority; 1137 1138 switch (softc->action) { 1139 case PROBE_TUR: 1140 { 1141 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1142 1143 if (cam_periph_error(done_ccb, 0, 1144 SF_NO_PRINT, NULL) == ERESTART) { 1145outr: 1146 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1147 cam_release_devq(path, 0, 0, 0, FALSE); 1148 return; 1149 } 1150 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1151 /* Don't wedge the queue */ 1152 xpt_release_devq(done_ccb->ccb_h.path, 1153 /*count*/1, 1154 /*run_queue*/TRUE); 1155 } 1156 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1157 xpt_release_ccb(done_ccb); 1158 xpt_schedule(periph, priority); 1159out: 1160 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1161 cam_release_devq(path, 0, 0, 0, FALSE); 1162 cam_periph_release_locked(periph); 1163 return; 1164 } 1165 case PROBE_INQUIRY: 1166 case PROBE_FULL_INQUIRY: 1167 { 1168 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1169 u_int8_t periph_qual; 1170 1171 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1172 scsi_find_quirk(path->device); 1173 inq_buf = &path->device->inq_data; 1174 1175 periph_qual = SID_QUAL(inq_buf); 1176 1177 if (periph_qual == SID_QUAL_LU_CONNECTED || 1178 periph_qual == SID_QUAL_LU_OFFLINE) { 1179 u_int8_t len; 1180 1181 /* 1182 * We conservatively request only 1183 * SHORT_INQUIRY_LEN bytes of inquiry 1184 * information during our first try 1185 * at sending an INQUIRY. If the device 1186 * has more information to give, 1187 * perform a second request specifying 1188 * the amount of information the device 1189 * is willing to give. 1190 */ 1191 len = inq_buf->additional_length 1192 + offsetof(struct scsi_inquiry_data, 1193 additional_length) + 1; 1194 if (softc->action == PROBE_INQUIRY 1195 && len > SHORT_INQUIRY_LENGTH) { 1196 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1197 xpt_release_ccb(done_ccb); 1198 xpt_schedule(periph, priority); 1199 goto out; 1200 } 1201 1202 scsi_devise_transport(path); 1203 1204 if (path->device->lun_id == 0 && 1205 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1206 (SCSI_QUIRK(path->device)->quirks & 1207 CAM_QUIRK_NORPTLUNS) == 0) { 1208 PROBE_SET_ACTION(softc, 1209 PROBE_REPORT_LUNS); 1210 /* 1211 * Start with room for *one* lun. 1212 */ 1213 periph->path->target->rpl_size = 16; 1214 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1215 PROBE_SET_ACTION(softc, 1216 PROBE_MODE_SENSE); 1217 else 1218 PROBE_SET_ACTION(softc, 1219 PROBE_SUPPORTED_VPD_LIST); 1220 1221 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1222 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1223 xpt_acquire_device(path->device); 1224 } 1225 xpt_release_ccb(done_ccb); 1226 xpt_schedule(periph, priority); 1227 goto out; 1228 } else if (path->device->lun_id == 0 && 1229 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1230 (SCSI_QUIRK(path->device)->quirks & 1231 CAM_QUIRK_NORPTLUNS) == 0) { 1232 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1233 periph->path->target->rpl_size = 16; 1234 xpt_release_ccb(done_ccb); 1235 xpt_schedule(periph, priority); 1236 goto out; 1237 } 1238 } else if (cam_periph_error(done_ccb, 0, 1239 done_ccb->ccb_h.target_lun > 0 1240 ? SF_RETRY_UA|SF_QUIET_IR 1241 : SF_RETRY_UA, 1242 &softc->saved_ccb) == ERESTART) { 1243 goto outr; 1244 } else { 1245 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1246 /* Don't wedge the queue */ 1247 xpt_release_devq(done_ccb->ccb_h.path, 1248 /*count*/1, /*run_queue*/TRUE); 1249 } 1250 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1251 } 1252 /* 1253 * If we get to this point, we got an error status back 1254 * from the inquiry and the error status doesn't require 1255 * automatically retrying the command. Therefore, the 1256 * inquiry failed. If we had inquiry information before 1257 * for this device, but this latest inquiry command failed, 1258 * the device has probably gone away. If this device isn't 1259 * already marked unconfigured, notify the peripheral 1260 * drivers that this device is no more. 1261 */ 1262 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1263 /* Send the async notification. */ 1264 xpt_async(AC_LOST_DEVICE, path, NULL); 1265 PROBE_SET_ACTION(softc, PROBE_INVALID); 1266 1267 xpt_release_ccb(done_ccb); 1268 break; 1269 } 1270 case PROBE_REPORT_LUNS: 1271 { 1272 struct ccb_scsiio *csio; 1273 struct scsi_report_luns_data *lp; 1274 u_int nlun, maxlun; 1275 1276 csio = &done_ccb->csio; 1277 1278 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1279 nlun = scsi_4btoul(lp->length) / 8; 1280 maxlun = (csio->dxfer_len / 8) - 1; 1281 1282 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1283 if (cam_periph_error(done_ccb, 0, 1284 done_ccb->ccb_h.target_lun > 0 ? 1285 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1286 &softc->saved_ccb) == ERESTART) { 1287 goto outr; 1288 } 1289 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1290 xpt_release_devq(done_ccb->ccb_h.path, 1, 1291 TRUE); 1292 } 1293 free(lp, M_CAMXPT); 1294 lp = NULL; 1295 } else if (nlun > maxlun) { 1296 /* 1297 * Reallocate and retry to cover all luns 1298 */ 1299 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1300 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1301 nlun)); 1302 free(lp, M_CAMXPT); 1303 path->target->rpl_size = (nlun << 3) + 8; 1304 xpt_release_ccb(done_ccb); 1305 xpt_schedule(periph, priority); 1306 goto out; 1307 } else if (nlun == 0) { 1308 /* 1309 * If there don't appear to be any luns, bail. 1310 */ 1311 free(lp, M_CAMXPT); 1312 lp = NULL; 1313 } else { 1314 lun_id_t lun; 1315 int idx; 1316 1317 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1318 ("Probe: %u lun(s) reported\n", nlun)); 1319 1320 CAM_GET_LUN(lp, 0, lun); 1321 /* 1322 * If the first lun is not lun 0, then either there 1323 * is no lun 0 in the list, or the list is unsorted. 1324 */ 1325 if (lun != 0) { 1326 for (idx = 0; idx < nlun; idx++) { 1327 CAM_GET_LUN(lp, idx, lun); 1328 if (lun == 0) { 1329 break; 1330 } 1331 } 1332 if (idx != nlun) { 1333 uint8_t tlun[8]; 1334 memcpy(tlun, 1335 lp->luns[0].lundata, 8); 1336 memcpy(lp->luns[0].lundata, 1337 lp->luns[idx].lundata, 8); 1338 memcpy(lp->luns[idx].lundata, 1339 tlun, 8); 1340 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1341 ("lun 0 in position %u\n", idx)); 1342 } 1343 } 1344 /* 1345 * If we have an old lun list, We can either 1346 * retest luns that appear to have been dropped, 1347 * or just nuke them. We'll opt for the latter. 1348 * This function will also install the new list 1349 * in the target structure. 1350 */ 1351 probe_purge_old(path, lp, softc->flags); 1352 lp = NULL; 1353 } 1354 /* The processing above should either exit via a `goto 1355 * out` or leave the `lp` variable `NULL` and (if 1356 * applicable) `free()` the storage to which it had 1357 * pointed. Assert here that is the case. 1358 */ 1359 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1360 inq_buf = &path->device->inq_data; 1361 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1362 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1363 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1364 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1365 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1366 else 1367 PROBE_SET_ACTION(softc, 1368 PROBE_SUPPORTED_VPD_LIST); 1369 xpt_release_ccb(done_ccb); 1370 xpt_schedule(periph, priority); 1371 goto out; 1372 } 1373 PROBE_SET_ACTION(softc, PROBE_INVALID); 1374 xpt_release_ccb(done_ccb); 1375 break; 1376 } 1377 case PROBE_MODE_SENSE: 1378 { 1379 struct ccb_scsiio *csio; 1380 struct scsi_mode_header_6 *mode_hdr; 1381 1382 csio = &done_ccb->csio; 1383 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1384 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1385 struct scsi_control_page *page; 1386 u_int8_t *offset; 1387 1388 offset = ((u_int8_t *)&mode_hdr[1]) 1389 + mode_hdr->blk_desc_len; 1390 page = (struct scsi_control_page *)offset; 1391 path->device->queue_flags = page->queue_flags; 1392 } else if (cam_periph_error(done_ccb, 0, 1393 SF_RETRY_UA|SF_NO_PRINT, 1394 &softc->saved_ccb) == ERESTART) { 1395 goto outr; 1396 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1397 /* Don't wedge the queue */ 1398 xpt_release_devq(done_ccb->ccb_h.path, 1399 /*count*/1, /*run_queue*/TRUE); 1400 } 1401 xpt_release_ccb(done_ccb); 1402 free(mode_hdr, M_CAMXPT); 1403 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1404 xpt_schedule(periph, priority); 1405 goto out; 1406 } 1407 case PROBE_SUPPORTED_VPD_LIST: 1408 { 1409 struct ccb_scsiio *csio; 1410 struct scsi_vpd_supported_page_list *page_list; 1411 1412 csio = &done_ccb->csio; 1413 page_list = 1414 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1415 1416 if (path->device->supported_vpds != NULL) { 1417 free(path->device->supported_vpds, M_CAMXPT); 1418 path->device->supported_vpds = NULL; 1419 path->device->supported_vpds_len = 0; 1420 } 1421 1422 if (page_list == NULL) { 1423 /* 1424 * Don't process the command as it was never sent 1425 */ 1426 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1427 /* Got vpd list */ 1428 path->device->supported_vpds_len = page_list->length + 1429 SVPD_SUPPORTED_PAGES_HDR_LEN; 1430 path->device->supported_vpds = (uint8_t *)page_list; 1431 xpt_release_ccb(done_ccb); 1432 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1433 xpt_schedule(periph, priority); 1434 goto out; 1435 } else if (cam_periph_error(done_ccb, 0, 1436 SF_RETRY_UA|SF_NO_PRINT, 1437 &softc->saved_ccb) == ERESTART) { 1438 goto outr; 1439 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1440 /* Don't wedge the queue */ 1441 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1442 /*run_queue*/TRUE); 1443 } 1444 1445 if (page_list) 1446 free(page_list, M_CAMXPT); 1447 /* No VPDs available, skip to device check. */ 1448 csio->data_ptr = NULL; 1449 goto probe_device_check; 1450 } 1451 case PROBE_DEVICE_ID: 1452 { 1453 struct scsi_vpd_device_id *devid; 1454 struct ccb_scsiio *csio; 1455 uint32_t length = 0; 1456 1457 csio = &done_ccb->csio; 1458 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1459 1460 /* Clean up from previous instance of this device */ 1461 if (path->device->device_id != NULL) { 1462 path->device->device_id_len = 0; 1463 free(path->device->device_id, M_CAMXPT); 1464 path->device->device_id = NULL; 1465 } 1466 1467 if (devid == NULL) { 1468 /* Don't process the command as it was never sent */ 1469 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1470 length = scsi_2btoul(devid->length); 1471 if (length != 0) { 1472 /* 1473 * NB: device_id_len is actual response 1474 * size, not buffer size. 1475 */ 1476 path->device->device_id_len = length + 1477 SVPD_DEVICE_ID_HDR_LEN; 1478 path->device->device_id = (uint8_t *)devid; 1479 } 1480 } else if (cam_periph_error(done_ccb, 0, 1481 SF_RETRY_UA, 1482 &softc->saved_ccb) == ERESTART) { 1483 goto outr; 1484 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1485 /* Don't wedge the queue */ 1486 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1487 /*run_queue*/TRUE); 1488 } 1489 1490 /* Free the device id space if we don't use it */ 1491 if (devid && length == 0) 1492 free(devid, M_CAMXPT); 1493 xpt_release_ccb(done_ccb); 1494 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1495 xpt_schedule(periph, priority); 1496 goto out; 1497 } 1498 case PROBE_EXTENDED_INQUIRY: { 1499 struct scsi_vpd_extended_inquiry_data *ext_inq; 1500 struct ccb_scsiio *csio; 1501 int32_t length = 0; 1502 1503 csio = &done_ccb->csio; 1504 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1505 csio->data_ptr; 1506 if (path->device->ext_inq != NULL) { 1507 path->device->ext_inq_len = 0; 1508 free(path->device->ext_inq, M_CAMXPT); 1509 path->device->ext_inq = NULL; 1510 } 1511 1512 if (ext_inq == NULL) { 1513 /* Don't process the command as it was never sent */ 1514 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1515 length = scsi_2btoul(ext_inq->page_length) + 1516 __offsetof(struct scsi_vpd_extended_inquiry_data, 1517 flags1); 1518 length = min(length, sizeof(*ext_inq)); 1519 length -= csio->resid; 1520 if (length > 0) { 1521 path->device->ext_inq_len = length; 1522 path->device->ext_inq = (uint8_t *)ext_inq; 1523 } 1524 } else if (cam_periph_error(done_ccb, 0, 1525 SF_RETRY_UA, 1526 &softc->saved_ccb) == ERESTART) { 1527 goto outr; 1528 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1529 /* Don't wedge the queue */ 1530 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1531 /*run_queue*/TRUE); 1532 } 1533 1534 /* Free the device id space if we don't use it */ 1535 if (ext_inq && length <= 0) 1536 free(ext_inq, M_CAMXPT); 1537 xpt_release_ccb(done_ccb); 1538 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1539 xpt_schedule(periph, priority); 1540 goto out; 1541 } 1542 1543probe_device_check: 1544 case PROBE_SERIAL_NUM: 1545 { 1546 struct ccb_scsiio *csio; 1547 struct scsi_vpd_unit_serial_number *serial_buf; 1548 u_int32_t priority; 1549 int changed; 1550 int have_serialnum; 1551 1552 changed = 1; 1553 have_serialnum = 0; 1554 csio = &done_ccb->csio; 1555 priority = done_ccb->ccb_h.pinfo.priority; 1556 serial_buf = 1557 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1558 1559 if (serial_buf == NULL) { 1560 /* 1561 * Don't process the command as it was never sent 1562 */ 1563 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1564 && (serial_buf->length > 0)) { 1565 1566 have_serialnum = 1; 1567 path->device->serial_num = 1568 (u_int8_t *)malloc((serial_buf->length + 1), 1569 M_CAMXPT, M_NOWAIT); 1570 if (path->device->serial_num != NULL) { 1571 memcpy(path->device->serial_num, 1572 serial_buf->serial_num, 1573 serial_buf->length); 1574 path->device->serial_num_len = 1575 serial_buf->length; 1576 path->device->serial_num[serial_buf->length] 1577 = '\0'; 1578 } 1579 } else if (cam_periph_error(done_ccb, 0, 1580 SF_RETRY_UA|SF_NO_PRINT, 1581 &softc->saved_ccb) == ERESTART) { 1582 goto outr; 1583 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1584 /* Don't wedge the queue */ 1585 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1586 /*run_queue*/TRUE); 1587 } 1588 1589 /* 1590 * Let's see if we have seen this device before. 1591 */ 1592 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1593 MD5_CTX context; 1594 u_int8_t digest[16]; 1595 1596 MD5Init(&context); 1597 1598 MD5Update(&context, 1599 (unsigned char *)&path->device->inq_data, 1600 sizeof(struct scsi_inquiry_data)); 1601 1602 if (have_serialnum) 1603 MD5Update(&context, serial_buf->serial_num, 1604 serial_buf->length); 1605 1606 MD5Final(digest, &context); 1607 if (bcmp(softc->digest, digest, 16) == 0) 1608 changed = 0; 1609 1610 /* 1611 * XXX Do we need to do a TUR in order to ensure 1612 * that the device really hasn't changed??? 1613 */ 1614 if ((changed != 0) 1615 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1616 xpt_async(AC_LOST_DEVICE, path, NULL); 1617 } 1618 if (serial_buf != NULL) 1619 free(serial_buf, M_CAMXPT); 1620 1621 if (changed != 0) { 1622 /* 1623 * Now that we have all the necessary 1624 * information to safely perform transfer 1625 * negotiations... Controllers don't perform 1626 * any negotiation or tagged queuing until 1627 * after the first XPT_SET_TRAN_SETTINGS ccb is 1628 * received. So, on a new device, just retrieve 1629 * the user settings, and set them as the current 1630 * settings to set the device up. 1631 */ 1632 proberequestdefaultnegotiation(periph); 1633 xpt_release_ccb(done_ccb); 1634 1635 /* 1636 * Perform a TUR to allow the controller to 1637 * perform any necessary transfer negotiation. 1638 */ 1639 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1640 xpt_schedule(periph, priority); 1641 goto out; 1642 } 1643 xpt_release_ccb(done_ccb); 1644 break; 1645 } 1646 case PROBE_TUR_FOR_NEGOTIATION: 1647 case PROBE_DV_EXIT: 1648 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1649 cam_periph_error(done_ccb, 0, 1650 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1651 } 1652 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1653 /* Don't wedge the queue */ 1654 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1655 /*run_queue*/TRUE); 1656 } 1657 /* 1658 * Do Domain Validation for lun 0 on devices that claim 1659 * to support Synchronous Transfer modes. 1660 */ 1661 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1662 && done_ccb->ccb_h.target_lun == 0 1663 && (path->device->inq_data.flags & SID_Sync) != 0 1664 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1665 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1666 ("Begin Domain Validation\n")); 1667 path->device->flags |= CAM_DEV_IN_DV; 1668 xpt_release_ccb(done_ccb); 1669 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1670 xpt_schedule(periph, priority); 1671 goto out; 1672 } 1673 if (softc->action == PROBE_DV_EXIT) { 1674 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1675 ("Leave Domain Validation\n")); 1676 } 1677 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1678 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1679 xpt_acquire_device(path->device); 1680 } 1681 path->device->flags &= 1682 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1683 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1684 /* Inform the XPT that a new device has been found */ 1685 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1686 xpt_action(done_ccb); 1687 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1688 done_ccb); 1689 } 1690 PROBE_SET_ACTION(softc, PROBE_DONE); 1691 xpt_release_ccb(done_ccb); 1692 break; 1693 case PROBE_INQUIRY_BASIC_DV1: 1694 case PROBE_INQUIRY_BASIC_DV2: 1695 { 1696 struct scsi_inquiry_data *nbuf; 1697 struct ccb_scsiio *csio; 1698 1699 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1700 cam_periph_error(done_ccb, 0, 1701 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1702 } 1703 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1704 /* Don't wedge the queue */ 1705 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1706 /*run_queue*/TRUE); 1707 } 1708 csio = &done_ccb->csio; 1709 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1710 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1711 xpt_print(path, 1712 "inquiry data fails comparison at DV%d step\n", 1713 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1714 if (proberequestbackoff(periph, path->device)) { 1715 path->device->flags &= ~CAM_DEV_IN_DV; 1716 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1717 } else { 1718 /* give up */ 1719 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1720 } 1721 free(nbuf, M_CAMXPT); 1722 xpt_release_ccb(done_ccb); 1723 xpt_schedule(periph, priority); 1724 goto out; 1725 } 1726 free(nbuf, M_CAMXPT); 1727 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1728 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1729 xpt_release_ccb(done_ccb); 1730 xpt_schedule(periph, priority); 1731 goto out; 1732 } 1733 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1734 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1735 ("Leave Domain Validation Successfully\n")); 1736 } 1737 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1738 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1739 xpt_acquire_device(path->device); 1740 } 1741 path->device->flags &= 1742 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1743 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1744 /* Inform the XPT that a new device has been found */ 1745 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1746 xpt_action(done_ccb); 1747 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1748 done_ccb); 1749 } 1750 PROBE_SET_ACTION(softc, PROBE_DONE); 1751 xpt_release_ccb(done_ccb); 1752 break; 1753 } 1754 default: 1755 panic("probedone: invalid action state 0x%x\n", softc->action); 1756 } 1757 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1758 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1759 done_ccb->ccb_h.status = CAM_REQ_CMP; 1760 xpt_done(done_ccb); 1761 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1762 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1763 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1764 cam_release_devq(path, 0, 0, 0, FALSE); 1765 cam_periph_release_locked(periph); 1766 cam_periph_invalidate(periph); 1767 cam_periph_release_locked(periph); 1768 } else { 1769 probeschedule(periph); 1770 goto out; 1771 } 1772} 1773 1774static void 1775probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1776 probe_flags flags) 1777{ 1778 struct cam_path *tp; 1779 struct scsi_report_luns_data *old; 1780 u_int idx1, idx2, nlun_old, nlun_new; 1781 lun_id_t this_lun; 1782 u_int8_t *ol, *nl; 1783 1784 if (path->target == NULL) { 1785 return; 1786 } 1787 mtx_lock(&path->target->luns_mtx); 1788 old = path->target->luns; 1789 path->target->luns = new; 1790 mtx_unlock(&path->target->luns_mtx); 1791 if (old == NULL) 1792 return; 1793 nlun_old = scsi_4btoul(old->length) / 8; 1794 nlun_new = scsi_4btoul(new->length) / 8; 1795 1796 /* 1797 * We are not going to assume sorted lists. Deal. 1798 */ 1799 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1800 ol = old->luns[idx1].lundata; 1801 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1802 nl = new->luns[idx2].lundata; 1803 if (memcmp(nl, ol, 8) == 0) { 1804 break; 1805 } 1806 } 1807 if (idx2 < nlun_new) { 1808 continue; 1809 } 1810 /* 1811 * An 'old' item not in the 'new' list. 1812 * Nuke it. Except that if it is lun 0, 1813 * that would be what the probe state 1814 * machine is currently working on, 1815 * so we won't do that. 1816 */ 1817 CAM_GET_LUN(old, idx1, this_lun); 1818 if (this_lun == 0) { 1819 continue; 1820 } 1821 1822 /* 1823 * We also cannot nuke it if it is 1824 * not in a lun format we understand 1825 * and replace the LUN with a "simple" LUN 1826 * if that is all the HBA supports. 1827 */ 1828 if (!(flags & PROBE_EXTLUN)) { 1829 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1830 continue; 1831 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1832 } 1833 if (!CAM_LUN_ONLY_32BITS(old, idx1)) 1834 continue; 1835 1836 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1837 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1838 xpt_async(AC_LOST_DEVICE, tp, NULL); 1839 xpt_free_path(tp); 1840 } 1841 } 1842 free(old, M_CAMXPT); 1843} 1844 1845static void 1846probecleanup(struct cam_periph *periph) 1847{ 1848 free(periph->softc, M_CAMXPT); 1849} 1850 1851static void 1852scsi_find_quirk(struct cam_ed *device) 1853{ 1854 struct scsi_quirk_entry *quirk; 1855 caddr_t match; 1856 1857 match = cam_quirkmatch((caddr_t)&device->inq_data, 1858 (caddr_t)scsi_quirk_table, 1859 sizeof(scsi_quirk_table) / 1860 sizeof(*scsi_quirk_table), 1861 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1862 1863 if (match == NULL) 1864 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1865 1866 quirk = (struct scsi_quirk_entry *)match; 1867 device->quirk = quirk; 1868 device->mintags = quirk->mintags; 1869 device->maxtags = quirk->maxtags; 1870} 1871 1872static int 1873sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1874{ 1875 int error, val; 1876 1877 val = cam_srch_hi; 1878 error = sysctl_handle_int(oidp, &val, 0, req); 1879 if (error != 0 || req->newptr == NULL) 1880 return (error); 1881 if (val == 0 || val == 1) { 1882 cam_srch_hi = val; 1883 return (0); 1884 } else { 1885 return (EINVAL); 1886 } 1887} 1888 1889typedef struct { 1890 union ccb *request_ccb; 1891 struct ccb_pathinq *cpi; 1892 int counter; 1893 int lunindex[0]; 1894} scsi_scan_bus_info; 1895 1896/* 1897 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1898 * As the scan progresses, scsi_scan_bus is used as the 1899 * callback on completion function. 1900 */ 1901static void 1902scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1903{ 1904 struct mtx *mtx; 1905 1906 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1907 ("scsi_scan_bus\n")); 1908 switch (request_ccb->ccb_h.func_code) { 1909 case XPT_SCAN_BUS: 1910 case XPT_SCAN_TGT: 1911 { 1912 scsi_scan_bus_info *scan_info; 1913 union ccb *work_ccb, *reset_ccb; 1914 struct cam_path *path; 1915 u_int i; 1916 u_int low_target, max_target; 1917 u_int initiator_id; 1918 1919 /* Find out the characteristics of the bus */ 1920 work_ccb = xpt_alloc_ccb_nowait(); 1921 if (work_ccb == NULL) { 1922 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1923 xpt_done(request_ccb); 1924 return; 1925 } 1926 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1927 request_ccb->ccb_h.pinfo.priority); 1928 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1929 xpt_action(work_ccb); 1930 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1931 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1932 xpt_free_ccb(work_ccb); 1933 xpt_done(request_ccb); 1934 return; 1935 } 1936 1937 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1938 /* 1939 * Can't scan the bus on an adapter that 1940 * cannot perform the initiator role. 1941 */ 1942 request_ccb->ccb_h.status = CAM_REQ_CMP; 1943 xpt_free_ccb(work_ccb); 1944 xpt_done(request_ccb); 1945 return; 1946 } 1947 1948 /* We may need to reset bus first, if we haven't done it yet. */ 1949 if ((work_ccb->cpi.hba_inquiry & 1950 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1951 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1952 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1953 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1954 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1955 CAM_PRIORITY_NONE); 1956 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1957 xpt_action(reset_ccb); 1958 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1959 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1960 xpt_free_ccb(reset_ccb); 1961 xpt_free_ccb(work_ccb); 1962 xpt_done(request_ccb); 1963 return; 1964 } 1965 xpt_free_ccb(reset_ccb); 1966 } 1967 1968 /* Save some state for use while we probe for devices */ 1969 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1970 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1971 if (scan_info == NULL) { 1972 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1973 xpt_free_ccb(work_ccb); 1974 xpt_done(request_ccb); 1975 return; 1976 } 1977 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1978 ("SCAN start for %p\n", scan_info)); 1979 scan_info->request_ccb = request_ccb; 1980 scan_info->cpi = &work_ccb->cpi; 1981 1982 /* Cache on our stack so we can work asynchronously */ 1983 max_target = scan_info->cpi->max_target; 1984 low_target = 0; 1985 initiator_id = scan_info->cpi->initiator_id; 1986 1987 1988 /* 1989 * We can scan all targets in parallel, or do it sequentially. 1990 */ 1991 1992 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 1993 max_target = low_target = request_ccb->ccb_h.target_id; 1994 scan_info->counter = 0; 1995 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1996 max_target = 0; 1997 scan_info->counter = 0; 1998 } else { 1999 scan_info->counter = scan_info->cpi->max_target + 1; 2000 if (scan_info->cpi->initiator_id < scan_info->counter) { 2001 scan_info->counter--; 2002 } 2003 } 2004 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2005 mtx_unlock(mtx); 2006 2007 for (i = low_target; i <= max_target; i++) { 2008 cam_status status; 2009 if (i == initiator_id) 2010 continue; 2011 2012 status = xpt_create_path(&path, NULL, 2013 request_ccb->ccb_h.path_id, 2014 i, 0); 2015 if (status != CAM_REQ_CMP) { 2016 printf("scsi_scan_bus: xpt_create_path failed" 2017 " with status %#x, bus scan halted\n", 2018 status); 2019 free(scan_info, M_CAMXPT); 2020 request_ccb->ccb_h.status = status; 2021 xpt_free_ccb(work_ccb); 2022 xpt_done(request_ccb); 2023 break; 2024 } 2025 work_ccb = xpt_alloc_ccb_nowait(); 2026 if (work_ccb == NULL) { 2027 xpt_free_ccb((union ccb *)scan_info->cpi); 2028 free(scan_info, M_CAMXPT); 2029 xpt_free_path(path); 2030 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2031 xpt_done(request_ccb); 2032 break; 2033 } 2034 xpt_setup_ccb(&work_ccb->ccb_h, path, 2035 request_ccb->ccb_h.pinfo.priority); 2036 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2037 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2038 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2039 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2040 work_ccb->crcn.flags = request_ccb->crcn.flags; 2041 xpt_action(work_ccb); 2042 } 2043 2044 mtx_lock(mtx); 2045 break; 2046 } 2047 case XPT_SCAN_LUN: 2048 { 2049 cam_status status; 2050 struct cam_path *path, *oldpath; 2051 scsi_scan_bus_info *scan_info; 2052 struct cam_et *target; 2053 struct cam_ed *device, *nextdev; 2054 int next_target; 2055 path_id_t path_id; 2056 target_id_t target_id; 2057 lun_id_t lun_id; 2058 2059 oldpath = request_ccb->ccb_h.path; 2060 2061 status = cam_ccb_status(request_ccb); 2062 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2063 path_id = request_ccb->ccb_h.path_id; 2064 target_id = request_ccb->ccb_h.target_id; 2065 lun_id = request_ccb->ccb_h.target_lun; 2066 target = request_ccb->ccb_h.path->target; 2067 next_target = 1; 2068 2069 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2070 mtx_lock(mtx); 2071 mtx_lock(&target->luns_mtx); 2072 if (target->luns) { 2073 lun_id_t first; 2074 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2075 2076 /* 2077 * Make sure we skip over lun 0 if it's the first member 2078 * of the list as we've actually just finished probing 2079 * it. 2080 */ 2081 CAM_GET_LUN(target->luns, 0, first); 2082 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2083 scan_info->lunindex[target_id]++; 2084 } 2085 2086 /* 2087 * Skip any LUNs that the HBA can't deal with. 2088 */ 2089 while (scan_info->lunindex[target_id] < nluns) { 2090 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2091 CAM_GET_LUN(target->luns, 2092 scan_info->lunindex[target_id], 2093 lun_id); 2094 break; 2095 } 2096 2097 /* XXX print warning? */ 2098 if (!CAM_LUN_ONLY_32BITS(target->luns, 2099 scan_info->lunindex[target_id])) 2100 continue; 2101 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2102 scan_info->lunindex[target_id])) { 2103 CAM_GET_SIMPLE_LUN(target->luns, 2104 scan_info->lunindex[target_id], 2105 lun_id); 2106 break; 2107 } 2108 2109 scan_info->lunindex[target_id]++; 2110 } 2111 2112 if (scan_info->lunindex[target_id] < nluns) { 2113 mtx_unlock(&target->luns_mtx); 2114 next_target = 0; 2115 CAM_DEBUG(request_ccb->ccb_h.path, 2116 CAM_DEBUG_PROBE, 2117 ("next lun to try at index %u is %jx\n", 2118 scan_info->lunindex[target_id], 2119 (uintmax_t)lun_id)); 2120 scan_info->lunindex[target_id]++; 2121 } else { 2122 mtx_unlock(&target->luns_mtx); 2123 /* We're done with scanning all luns. */ 2124 } 2125 } else { 2126 mtx_unlock(&target->luns_mtx); 2127 device = request_ccb->ccb_h.path->device; 2128 /* Continue sequential LUN scan if: */ 2129 /* -- we have more LUNs that need recheck */ 2130 mtx_lock(&target->bus->eb_mtx); 2131 nextdev = device; 2132 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2133 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2134 break; 2135 mtx_unlock(&target->bus->eb_mtx); 2136 if (nextdev != NULL) { 2137 next_target = 0; 2138 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2139 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2140 next_target = 1; 2141 /* -- this LUN is connected and its SCSI version 2142 * allows more LUNs. */ 2143 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2144 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2145 CAN_SRCH_HI_DENSE(device)) 2146 next_target = 0; 2147 /* -- this LUN is disconnected, its SCSI version 2148 * allows more LUNs and we guess they may be. */ 2149 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2150 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2151 CAN_SRCH_HI_SPARSE(device)) 2152 next_target = 0; 2153 } 2154 if (next_target == 0) { 2155 lun_id++; 2156 if (lun_id > scan_info->cpi->max_lun) 2157 next_target = 1; 2158 } 2159 } 2160 2161 /* 2162 * Check to see if we scan any further luns. 2163 */ 2164 if (next_target) { 2165 int done; 2166 2167 /* 2168 * Free the current request path- we're done with it. 2169 */ 2170 xpt_free_path(oldpath); 2171 hop_again: 2172 done = 0; 2173 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2174 done = 1; 2175 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2176 scan_info->counter++; 2177 if (scan_info->counter == 2178 scan_info->cpi->initiator_id) { 2179 scan_info->counter++; 2180 } 2181 if (scan_info->counter >= 2182 scan_info->cpi->max_target+1) { 2183 done = 1; 2184 } 2185 } else { 2186 scan_info->counter--; 2187 if (scan_info->counter == 0) { 2188 done = 1; 2189 } 2190 } 2191 if (done) { 2192 mtx_unlock(mtx); 2193 xpt_free_ccb(request_ccb); 2194 xpt_free_ccb((union ccb *)scan_info->cpi); 2195 request_ccb = scan_info->request_ccb; 2196 CAM_DEBUG(request_ccb->ccb_h.path, 2197 CAM_DEBUG_TRACE, 2198 ("SCAN done for %p\n", scan_info)); 2199 free(scan_info, M_CAMXPT); 2200 request_ccb->ccb_h.status = CAM_REQ_CMP; 2201 xpt_done(request_ccb); 2202 break; 2203 } 2204 2205 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2206 mtx_unlock(mtx); 2207 xpt_free_ccb(request_ccb); 2208 break; 2209 } 2210 status = xpt_create_path(&path, NULL, 2211 scan_info->request_ccb->ccb_h.path_id, 2212 scan_info->counter, 0); 2213 if (status != CAM_REQ_CMP) { 2214 mtx_unlock(mtx); 2215 printf("scsi_scan_bus: xpt_create_path failed" 2216 " with status %#x, bus scan halted\n", 2217 status); 2218 xpt_free_ccb(request_ccb); 2219 xpt_free_ccb((union ccb *)scan_info->cpi); 2220 request_ccb = scan_info->request_ccb; 2221 free(scan_info, M_CAMXPT); 2222 request_ccb->ccb_h.status = status; 2223 xpt_done(request_ccb); 2224 break; 2225 } 2226 xpt_setup_ccb(&request_ccb->ccb_h, path, 2227 request_ccb->ccb_h.pinfo.priority); 2228 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2229 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2230 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2231 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2232 request_ccb->crcn.flags = 2233 scan_info->request_ccb->crcn.flags; 2234 } else { 2235 status = xpt_create_path(&path, NULL, 2236 path_id, target_id, lun_id); 2237 /* 2238 * Free the old request path- we're done with it. We 2239 * do this *after* creating the new path so that 2240 * we don't remove a target that has our lun list 2241 * in the case that lun 0 is not present. 2242 */ 2243 xpt_free_path(oldpath); 2244 if (status != CAM_REQ_CMP) { 2245 printf("scsi_scan_bus: xpt_create_path failed " 2246 "with status %#x, halting LUN scan\n", 2247 status); 2248 goto hop_again; 2249 } 2250 xpt_setup_ccb(&request_ccb->ccb_h, path, 2251 request_ccb->ccb_h.pinfo.priority); 2252 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2253 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2254 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2255 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2256 request_ccb->crcn.flags = 2257 scan_info->request_ccb->crcn.flags; 2258 } 2259 mtx_unlock(mtx); 2260 xpt_action(request_ccb); 2261 break; 2262 } 2263 default: 2264 break; 2265 } 2266} 2267 2268static void 2269scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2270 cam_flags flags, union ccb *request_ccb) 2271{ 2272 struct ccb_pathinq cpi; 2273 cam_status status; 2274 struct cam_path *new_path; 2275 struct cam_periph *old_periph; 2276 int lock; 2277 2278 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2279 2280 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2281 cpi.ccb_h.func_code = XPT_PATH_INQ; 2282 xpt_action((union ccb *)&cpi); 2283 2284 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2285 if (request_ccb != NULL) { 2286 request_ccb->ccb_h.status = cpi.ccb_h.status; 2287 xpt_done(request_ccb); 2288 } 2289 return; 2290 } 2291 2292 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2293 /* 2294 * Can't scan the bus on an adapter that 2295 * cannot perform the initiator role. 2296 */ 2297 if (request_ccb != NULL) { 2298 request_ccb->ccb_h.status = CAM_REQ_CMP; 2299 xpt_done(request_ccb); 2300 } 2301 return; 2302 } 2303 2304 if (request_ccb == NULL) { 2305 request_ccb = xpt_alloc_ccb_nowait(); 2306 if (request_ccb == NULL) { 2307 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2308 "can't continue\n"); 2309 return; 2310 } 2311 status = xpt_create_path(&new_path, NULL, 2312 path->bus->path_id, 2313 path->target->target_id, 2314 path->device->lun_id); 2315 if (status != CAM_REQ_CMP) { 2316 xpt_print(path, "scsi_scan_lun: can't create path, " 2317 "can't continue\n"); 2318 xpt_free_ccb(request_ccb); 2319 return; 2320 } 2321 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2322 request_ccb->ccb_h.cbfcnp = xptscandone; 2323 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2324 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2325 request_ccb->crcn.flags = flags; 2326 } 2327 2328 lock = (xpt_path_owned(path) == 0); 2329 if (lock) 2330 xpt_path_lock(path); 2331 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2332 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2333 probe_softc *softc; 2334 2335 softc = (probe_softc *)old_periph->softc; 2336 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2337 &request_ccb->ccb_h, periph_links.tqe); 2338 } else { 2339 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2340 xpt_done(request_ccb); 2341 } 2342 } else { 2343 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2344 probestart, "probe", 2345 CAM_PERIPH_BIO, 2346 request_ccb->ccb_h.path, NULL, 0, 2347 request_ccb); 2348 2349 if (status != CAM_REQ_CMP) { 2350 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2351 "returned an error, can't continue probe\n"); 2352 request_ccb->ccb_h.status = status; 2353 xpt_done(request_ccb); 2354 } 2355 } 2356 if (lock) 2357 xpt_path_unlock(path); 2358} 2359 2360static void 2361xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2362{ 2363 2364 xpt_free_path(done_ccb->ccb_h.path); 2365 xpt_free_ccb(done_ccb); 2366} 2367 2368static struct cam_ed * 2369scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2370{ 2371 struct scsi_quirk_entry *quirk; 2372 struct cam_ed *device; 2373 2374 device = xpt_alloc_device(bus, target, lun_id); 2375 if (device == NULL) 2376 return (NULL); 2377 2378 /* 2379 * Take the default quirk entry until we have inquiry 2380 * data and can determine a better quirk to use. 2381 */ 2382 quirk = &scsi_quirk_table[scsi_quirk_table_size - 1]; 2383 device->quirk = (void *)quirk; 2384 device->mintags = quirk->mintags; 2385 device->maxtags = quirk->maxtags; 2386 bzero(&device->inq_data, sizeof(device->inq_data)); 2387 device->inq_flags = 0; 2388 device->queue_flags = 0; 2389 device->serial_num = NULL; 2390 device->serial_num_len = 0; 2391 device->device_id = NULL; 2392 device->device_id_len = 0; 2393 device->supported_vpds = NULL; 2394 device->supported_vpds_len = 0; 2395 return (device); 2396} 2397 2398static void 2399scsi_devise_transport(struct cam_path *path) 2400{ 2401 struct ccb_pathinq cpi; 2402 struct ccb_trans_settings cts; 2403 struct scsi_inquiry_data *inq_buf; 2404 2405 /* Get transport information from the SIM */ 2406 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2407 cpi.ccb_h.func_code = XPT_PATH_INQ; 2408 xpt_action((union ccb *)&cpi); 2409 2410 inq_buf = NULL; 2411 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2412 inq_buf = &path->device->inq_data; 2413 path->device->protocol = PROTO_SCSI; 2414 path->device->protocol_version = 2415 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2416 path->device->transport = cpi.transport; 2417 path->device->transport_version = cpi.transport_version; 2418 2419 /* 2420 * Any device not using SPI3 features should 2421 * be considered SPI2 or lower. 2422 */ 2423 if (inq_buf != NULL) { 2424 if (path->device->transport == XPORT_SPI 2425 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2426 && path->device->transport_version > 2) 2427 path->device->transport_version = 2; 2428 } else { 2429 struct cam_ed* otherdev; 2430 2431 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2432 otherdev != NULL; 2433 otherdev = TAILQ_NEXT(otherdev, links)) { 2434 if (otherdev != path->device) 2435 break; 2436 } 2437 2438 if (otherdev != NULL) { 2439 /* 2440 * Initially assume the same versioning as 2441 * prior luns for this target. 2442 */ 2443 path->device->protocol_version = 2444 otherdev->protocol_version; 2445 path->device->transport_version = 2446 otherdev->transport_version; 2447 } else { 2448 /* Until we know better, opt for safety */ 2449 path->device->protocol_version = 2; 2450 if (path->device->transport == XPORT_SPI) 2451 path->device->transport_version = 2; 2452 else 2453 path->device->transport_version = 0; 2454 } 2455 } 2456 2457 /* 2458 * XXX 2459 * For a device compliant with SPC-2 we should be able 2460 * to determine the transport version supported by 2461 * scrutinizing the version descriptors in the 2462 * inquiry buffer. 2463 */ 2464 2465 /* Tell the controller what we think */ 2466 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2467 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2468 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2469 cts.transport = path->device->transport; 2470 cts.transport_version = path->device->transport_version; 2471 cts.protocol = path->device->protocol; 2472 cts.protocol_version = path->device->protocol_version; 2473 cts.proto_specific.valid = 0; 2474 cts.xport_specific.valid = 0; 2475 xpt_action((union ccb *)&cts); 2476} 2477 2478static void 2479scsi_dev_advinfo(union ccb *start_ccb) 2480{ 2481 struct cam_ed *device; 2482 struct ccb_dev_advinfo *cdai; 2483 off_t amt; 2484 2485 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2486 device = start_ccb->ccb_h.path->device; 2487 cdai = &start_ccb->cdai; 2488 switch(cdai->buftype) { 2489 case CDAI_TYPE_SCSI_DEVID: 2490 if (cdai->flags & CDAI_FLAG_STORE) 2491 return; 2492 cdai->provsiz = device->device_id_len; 2493 if (device->device_id_len == 0) 2494 break; 2495 amt = device->device_id_len; 2496 if (cdai->provsiz > cdai->bufsiz) 2497 amt = cdai->bufsiz; 2498 memcpy(cdai->buf, device->device_id, amt); 2499 break; 2500 case CDAI_TYPE_SERIAL_NUM: 2501 if (cdai->flags & CDAI_FLAG_STORE) 2502 return; 2503 cdai->provsiz = device->serial_num_len; 2504 if (device->serial_num_len == 0) 2505 break; 2506 amt = device->serial_num_len; 2507 if (cdai->provsiz > cdai->bufsiz) 2508 amt = cdai->bufsiz; 2509 memcpy(cdai->buf, device->serial_num, amt); 2510 break; 2511 case CDAI_TYPE_PHYS_PATH: 2512 if (cdai->flags & CDAI_FLAG_STORE) { 2513 if (device->physpath != NULL) { 2514 free(device->physpath, M_CAMXPT); 2515 device->physpath = NULL; 2516 } 2517 device->physpath_len = cdai->bufsiz; 2518 /* Clear existing buffer if zero length */ 2519 if (cdai->bufsiz == 0) 2520 break; 2521 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2522 if (device->physpath == NULL) { 2523 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2524 return; 2525 } 2526 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2527 } else { 2528 cdai->provsiz = device->physpath_len; 2529 if (device->physpath_len == 0) 2530 break; 2531 amt = device->physpath_len; 2532 if (cdai->provsiz > cdai->bufsiz) 2533 amt = cdai->bufsiz; 2534 memcpy(cdai->buf, device->physpath, amt); 2535 } 2536 break; 2537 case CDAI_TYPE_RCAPLONG: 2538 if (cdai->flags & CDAI_FLAG_STORE) { 2539 if (device->rcap_buf != NULL) { 2540 free(device->rcap_buf, M_CAMXPT); 2541 device->rcap_buf = NULL; 2542 } 2543 2544 device->rcap_len = cdai->bufsiz; 2545 /* Clear existing buffer if zero length */ 2546 if (cdai->bufsiz == 0) 2547 break; 2548 2549 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2550 M_NOWAIT); 2551 if (device->rcap_buf == NULL) { 2552 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2553 return; 2554 } 2555 2556 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2557 } else { 2558 cdai->provsiz = device->rcap_len; 2559 if (device->rcap_len == 0) 2560 break; 2561 amt = device->rcap_len; 2562 if (cdai->provsiz > cdai->bufsiz) 2563 amt = cdai->bufsiz; 2564 memcpy(cdai->buf, device->rcap_buf, amt); 2565 } 2566 break; 2567 case CDAI_TYPE_EXT_INQ: 2568 /* 2569 * We fetch extended inquiry data during probe, if 2570 * available. We don't allow changing it. 2571 */ 2572 if (cdai->flags & CDAI_FLAG_STORE) 2573 return; 2574 cdai->provsiz = device->ext_inq_len; 2575 if (device->ext_inq_len == 0) 2576 break; 2577 amt = device->ext_inq_len; 2578 if (cdai->provsiz > cdai->bufsiz) 2579 amt = cdai->bufsiz; 2580 memcpy(cdai->buf, device->ext_inq, amt); 2581 break; 2582 default: 2583 return; 2584 } 2585 start_ccb->ccb_h.status = CAM_REQ_CMP; 2586 2587 if (cdai->flags & CDAI_FLAG_STORE) { 2588 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2589 (void *)(uintptr_t)cdai->buftype); 2590 } 2591} 2592 2593static void 2594scsi_action(union ccb *start_ccb) 2595{ 2596 2597 switch (start_ccb->ccb_h.func_code) { 2598 case XPT_SET_TRAN_SETTINGS: 2599 { 2600 scsi_set_transfer_settings(&start_ccb->cts, 2601 start_ccb->ccb_h.path, 2602 /*async_update*/FALSE); 2603 break; 2604 } 2605 case XPT_SCAN_BUS: 2606 case XPT_SCAN_TGT: 2607 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2608 break; 2609 case XPT_SCAN_LUN: 2610 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2611 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2612 start_ccb); 2613 break; 2614 case XPT_DEV_ADVINFO: 2615 { 2616 scsi_dev_advinfo(start_ccb); 2617 break; 2618 } 2619 default: 2620 xpt_action_default(start_ccb); 2621 break; 2622 } 2623} 2624 2625static void 2626scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2627 int async_update) 2628{ 2629 struct ccb_pathinq cpi; 2630 struct ccb_trans_settings cur_cts; 2631 struct ccb_trans_settings_scsi *scsi; 2632 struct ccb_trans_settings_scsi *cur_scsi; 2633 struct scsi_inquiry_data *inq_data; 2634 struct cam_ed *device; 2635 2636 if (path == NULL || (device = path->device) == NULL) { 2637 cts->ccb_h.status = CAM_PATH_INVALID; 2638 xpt_done((union ccb *)cts); 2639 return; 2640 } 2641 2642 if (cts->protocol == PROTO_UNKNOWN 2643 || cts->protocol == PROTO_UNSPECIFIED) { 2644 cts->protocol = device->protocol; 2645 cts->protocol_version = device->protocol_version; 2646 } 2647 2648 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2649 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2650 cts->protocol_version = device->protocol_version; 2651 2652 if (cts->protocol != device->protocol) { 2653 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2654 cts->protocol, device->protocol); 2655 cts->protocol = device->protocol; 2656 } 2657 2658 if (cts->protocol_version > device->protocol_version) { 2659 if (bootverbose) { 2660 xpt_print(path, "Down reving Protocol " 2661 "Version from %d to %d?\n", cts->protocol_version, 2662 device->protocol_version); 2663 } 2664 cts->protocol_version = device->protocol_version; 2665 } 2666 2667 if (cts->transport == XPORT_UNKNOWN 2668 || cts->transport == XPORT_UNSPECIFIED) { 2669 cts->transport = device->transport; 2670 cts->transport_version = device->transport_version; 2671 } 2672 2673 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2674 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2675 cts->transport_version = device->transport_version; 2676 2677 if (cts->transport != device->transport) { 2678 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2679 cts->transport, device->transport); 2680 cts->transport = device->transport; 2681 } 2682 2683 if (cts->transport_version > device->transport_version) { 2684 if (bootverbose) { 2685 xpt_print(path, "Down reving Transport " 2686 "Version from %d to %d?\n", cts->transport_version, 2687 device->transport_version); 2688 } 2689 cts->transport_version = device->transport_version; 2690 } 2691 2692 /* 2693 * Nothing more of interest to do unless 2694 * this is a device connected via the 2695 * SCSI protocol. 2696 */ 2697 if (cts->protocol != PROTO_SCSI) { 2698 if (async_update == FALSE) 2699 xpt_action_default((union ccb *)cts); 2700 return; 2701 } 2702 2703 inq_data = &device->inq_data; 2704 scsi = &cts->proto_specific.scsi; 2705 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2706 cpi.ccb_h.func_code = XPT_PATH_INQ; 2707 xpt_action((union ccb *)&cpi); 2708 2709 /* SCSI specific sanity checking */ 2710 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2711 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2712 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2713 || (device->mintags == 0)) { 2714 /* 2715 * Can't tag on hardware that doesn't support tags, 2716 * doesn't have it enabled, or has broken tag support. 2717 */ 2718 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2719 } 2720 2721 if (async_update == FALSE) { 2722 /* 2723 * Perform sanity checking against what the 2724 * controller and device can do. 2725 */ 2726 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2727 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2728 cur_cts.type = cts->type; 2729 xpt_action((union ccb *)&cur_cts); 2730 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2731 return; 2732 } 2733 cur_scsi = &cur_cts.proto_specific.scsi; 2734 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2735 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2736 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2737 } 2738 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2739 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2740 } 2741 2742 /* SPI specific sanity checking */ 2743 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2744 u_int spi3caps; 2745 struct ccb_trans_settings_spi *spi; 2746 struct ccb_trans_settings_spi *cur_spi; 2747 2748 spi = &cts->xport_specific.spi; 2749 2750 cur_spi = &cur_cts.xport_specific.spi; 2751 2752 /* Fill in any gaps in what the user gave us */ 2753 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2754 spi->sync_period = cur_spi->sync_period; 2755 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2756 spi->sync_period = 0; 2757 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2758 spi->sync_offset = cur_spi->sync_offset; 2759 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2760 spi->sync_offset = 0; 2761 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2762 spi->ppr_options = cur_spi->ppr_options; 2763 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2764 spi->ppr_options = 0; 2765 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2766 spi->bus_width = cur_spi->bus_width; 2767 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2768 spi->bus_width = 0; 2769 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2770 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2771 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2772 } 2773 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2774 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2775 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2776 && (inq_data->flags & SID_Sync) == 0 2777 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2778 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2779 /* Force async */ 2780 spi->sync_period = 0; 2781 spi->sync_offset = 0; 2782 } 2783 2784 switch (spi->bus_width) { 2785 case MSG_EXT_WDTR_BUS_32_BIT: 2786 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2787 || (inq_data->flags & SID_WBus32) != 0 2788 || cts->type == CTS_TYPE_USER_SETTINGS) 2789 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2790 break; 2791 /* Fall Through to 16-bit */ 2792 case MSG_EXT_WDTR_BUS_16_BIT: 2793 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2794 || (inq_data->flags & SID_WBus16) != 0 2795 || cts->type == CTS_TYPE_USER_SETTINGS) 2796 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2797 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2798 break; 2799 } 2800 /* Fall Through to 8-bit */ 2801 default: /* New bus width?? */ 2802 case MSG_EXT_WDTR_BUS_8_BIT: 2803 /* All targets can do this */ 2804 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2805 break; 2806 } 2807 2808 spi3caps = cpi.xport_specific.spi.ppr_options; 2809 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2810 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2811 spi3caps &= inq_data->spi3data; 2812 2813 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2814 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2815 2816 if ((spi3caps & SID_SPI_IUS) == 0) 2817 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2818 2819 if ((spi3caps & SID_SPI_QAS) == 0) 2820 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2821 2822 /* No SPI Transfer settings are allowed unless we are wide */ 2823 if (spi->bus_width == 0) 2824 spi->ppr_options = 0; 2825 2826 if ((spi->valid & CTS_SPI_VALID_DISC) 2827 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2828 /* 2829 * Can't tag queue without disconnection. 2830 */ 2831 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2832 scsi->valid |= CTS_SCSI_VALID_TQ; 2833 } 2834 2835 /* 2836 * If we are currently performing tagged transactions to 2837 * this device and want to change its negotiation parameters, 2838 * go non-tagged for a bit to give the controller a chance to 2839 * negotiate unhampered by tag messages. 2840 */ 2841 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2842 && (device->inq_flags & SID_CmdQue) != 0 2843 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2844 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2845 CTS_SPI_VALID_SYNC_OFFSET| 2846 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2847 scsi_toggle_tags(path); 2848 } 2849 2850 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2851 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2852 int device_tagenb; 2853 2854 /* 2855 * If we are transitioning from tags to no-tags or 2856 * vice-versa, we need to carefully freeze and restart 2857 * the queue so that we don't overlap tagged and non-tagged 2858 * commands. We also temporarily stop tags if there is 2859 * a change in transfer negotiation settings to allow 2860 * "tag-less" negotiation. 2861 */ 2862 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2863 || (device->inq_flags & SID_CmdQue) != 0) 2864 device_tagenb = TRUE; 2865 else 2866 device_tagenb = FALSE; 2867 2868 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2869 && device_tagenb == FALSE) 2870 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2871 && device_tagenb == TRUE)) { 2872 2873 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2874 /* 2875 * Delay change to use tags until after a 2876 * few commands have gone to this device so 2877 * the controller has time to perform transfer 2878 * negotiations without tagged messages getting 2879 * in the way. 2880 */ 2881 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2882 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2883 } else { 2884 xpt_stop_tags(path); 2885 } 2886 } 2887 } 2888 if (async_update == FALSE) 2889 xpt_action_default((union ccb *)cts); 2890} 2891 2892static void 2893scsi_toggle_tags(struct cam_path *path) 2894{ 2895 struct cam_ed *dev; 2896 2897 /* 2898 * Give controllers a chance to renegotiate 2899 * before starting tag operations. We 2900 * "toggle" tagged queuing off then on 2901 * which causes the tag enable command delay 2902 * counter to come into effect. 2903 */ 2904 dev = path->device; 2905 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2906 || ((dev->inq_flags & SID_CmdQue) != 0 2907 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2908 struct ccb_trans_settings cts; 2909 2910 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2911 cts.protocol = PROTO_SCSI; 2912 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2913 cts.transport = XPORT_UNSPECIFIED; 2914 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2915 cts.proto_specific.scsi.flags = 0; 2916 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2917 scsi_set_transfer_settings(&cts, path, 2918 /*async_update*/TRUE); 2919 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2920 scsi_set_transfer_settings(&cts, path, 2921 /*async_update*/TRUE); 2922 } 2923} 2924 2925/* 2926 * Handle any per-device event notifications that require action by the XPT. 2927 */ 2928static void 2929scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2930 struct cam_ed *device, void *async_arg) 2931{ 2932 cam_status status; 2933 struct cam_path newpath; 2934 2935 /* 2936 * We only need to handle events for real devices. 2937 */ 2938 if (target->target_id == CAM_TARGET_WILDCARD 2939 || device->lun_id == CAM_LUN_WILDCARD) 2940 return; 2941 2942 /* 2943 * We need our own path with wildcards expanded to 2944 * handle certain types of events. 2945 */ 2946 if ((async_code == AC_SENT_BDR) 2947 || (async_code == AC_BUS_RESET) 2948 || (async_code == AC_INQ_CHANGED)) 2949 status = xpt_compile_path(&newpath, NULL, 2950 bus->path_id, 2951 target->target_id, 2952 device->lun_id); 2953 else 2954 status = CAM_REQ_CMP_ERR; 2955 2956 if (status == CAM_REQ_CMP) { 2957 2958 /* 2959 * Allow transfer negotiation to occur in a 2960 * tag free environment and after settle delay. 2961 */ 2962 if (async_code == AC_SENT_BDR 2963 || async_code == AC_BUS_RESET) { 2964 cam_freeze_devq(&newpath); 2965 cam_release_devq(&newpath, 2966 RELSIM_RELEASE_AFTER_TIMEOUT, 2967 /*reduction*/0, 2968 /*timeout*/scsi_delay, 2969 /*getcount_only*/0); 2970 scsi_toggle_tags(&newpath); 2971 } 2972 2973 if (async_code == AC_INQ_CHANGED) { 2974 /* 2975 * We've sent a start unit command, or 2976 * something similar to a device that 2977 * may have caused its inquiry data to 2978 * change. So we re-scan the device to 2979 * refresh the inquiry data for it. 2980 */ 2981 scsi_scan_lun(newpath.periph, &newpath, 2982 CAM_EXPECT_INQ_CHANGE, NULL); 2983 } 2984 xpt_release_path(&newpath); 2985 } else if (async_code == AC_LOST_DEVICE && 2986 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2987 device->flags |= CAM_DEV_UNCONFIGURED; 2988 xpt_release_device(device); 2989 } else if (async_code == AC_TRANSFER_NEG) { 2990 struct ccb_trans_settings *settings; 2991 struct cam_path path; 2992 2993 settings = (struct ccb_trans_settings *)async_arg; 2994 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 2995 device->lun_id); 2996 scsi_set_transfer_settings(settings, &path, 2997 /*async_update*/TRUE); 2998 xpt_release_path(&path); 2999 } 3000} 3001 3002static void 3003scsi_announce_periph(struct cam_periph *periph) 3004{ 3005 struct ccb_pathinq cpi; 3006 struct ccb_trans_settings cts; 3007 struct cam_path *path = periph->path; 3008 u_int speed; 3009 u_int freq; 3010 u_int mb; 3011 3012 cam_periph_assert(periph, MA_OWNED); 3013 3014 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 3015 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3016 cts.type = CTS_TYPE_CURRENT_SETTINGS; 3017 xpt_action((union ccb*)&cts); 3018 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3019 return; 3020 /* Ask the SIM for its base transfer speed */ 3021 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3022 cpi.ccb_h.func_code = XPT_PATH_INQ; 3023 xpt_action((union ccb *)&cpi); 3024 /* Report connection speed */ 3025 speed = cpi.base_transfer_speed; 3026 freq = 0; 3027 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3028 struct ccb_trans_settings_spi *spi = 3029 &cts.xport_specific.spi; 3030 3031 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3032 && spi->sync_offset != 0) { 3033 freq = scsi_calc_syncsrate(spi->sync_period); 3034 speed = freq; 3035 } 3036 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3037 speed *= (0x01 << spi->bus_width); 3038 } 3039 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3040 struct ccb_trans_settings_fc *fc = 3041 &cts.xport_specific.fc; 3042 3043 if (fc->valid & CTS_FC_VALID_SPEED) 3044 speed = fc->bitrate; 3045 } 3046 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3047 struct ccb_trans_settings_sas *sas = 3048 &cts.xport_specific.sas; 3049 3050 if (sas->valid & CTS_SAS_VALID_SPEED) 3051 speed = sas->bitrate; 3052 } 3053 mb = speed / 1000; 3054 if (mb > 0) 3055 printf("%s%d: %d.%03dMB/s transfers", 3056 periph->periph_name, periph->unit_number, 3057 mb, speed % 1000); 3058 else 3059 printf("%s%d: %dKB/s transfers", periph->periph_name, 3060 periph->unit_number, speed); 3061 /* Report additional information about SPI connections */ 3062 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3063 struct ccb_trans_settings_spi *spi; 3064 3065 spi = &cts.xport_specific.spi; 3066 if (freq != 0) { 3067 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3068 freq % 1000, 3069 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3070 ? " DT" : "", 3071 spi->sync_offset); 3072 } 3073 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3074 && spi->bus_width > 0) { 3075 if (freq != 0) { 3076 printf(", "); 3077 } else { 3078 printf(" ("); 3079 } 3080 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3081 } else if (freq != 0) { 3082 printf(")"); 3083 } 3084 } 3085 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3086 struct ccb_trans_settings_fc *fc; 3087 3088 fc = &cts.xport_specific.fc; 3089 if (fc->valid & CTS_FC_VALID_WWNN) 3090 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3091 if (fc->valid & CTS_FC_VALID_WWPN) 3092 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3093 if (fc->valid & CTS_FC_VALID_PORT) 3094 printf(" PortID 0x%x", fc->port); 3095 } 3096 printf("\n"); 3097} 3098 3099