1 /*- 2 * Implementation of the SCSI Transport 3 * 4 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 5 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/systm.h> 36 #include <sys/types.h> 37 #include <sys/malloc.h> 38 #include <sys/kernel.h> 39 #include <sys/time.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/md5.h> 43 #include <sys/interrupt.h> 44 #include <sys/sbuf.h> 45 46 #include <sys/lock.h> 47 #include <sys/mutex.h> 48 #include <sys/sysctl.h> 49 50 #ifdef PC98 51 #include <pc98/pc98/pc98_machdep.h> /* geometry translation */ 52 #endif 53 54 #include <cam/cam.h> 55 #include <cam/cam_ccb.h> 56 #include <cam/cam_queue.h> 57 #include <cam/cam_periph.h> 58 #include <cam/cam_sim.h> 59 #include <cam/cam_xpt.h> 60 #include <cam/cam_xpt_sim.h> 61 #include <cam/cam_xpt_periph.h> 62 #include <cam/cam_xpt_internal.h> 63 #include <cam/cam_debug.h> 64 65 #include <cam/scsi/scsi_all.h> 66 #include <cam/scsi/scsi_message.h> 67 #include <cam/scsi/scsi_pass.h> 68 #include <machine/stdarg.h> /* for xpt_print below */ 69 #include "opt_cam.h" 70 71 struct scsi_quirk_entry { 72 struct scsi_inquiry_pattern inq_pat; 73 u_int8_t quirks; 74 #define CAM_QUIRK_NOLUNS 0x01 75 #define CAM_QUIRK_NOSERIAL 0x02 76 #define CAM_QUIRK_HILUNS 0x04 77 #define CAM_QUIRK_NOHILUNS 0x08 78 u_int mintags; 79 u_int maxtags; 80 }; 81 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 82 83 static int cam_srch_hi = 0; 84 TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi); 85 static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 86 SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0, 87 sysctl_cam_search_luns, "I", 88 "allow search above LUN 7 for SCSI3 and greater devices"); 89 90 #define CAM_SCSI2_MAXLUN 8 91 /* 92 * If we're not quirked to search <= the first 8 luns 93 * and we are either quirked to search above lun 8, 94 * or we're > SCSI-2 and we've enabled hilun searching, 95 * or we're > SCSI-2 and the last lun was a success, 96 * we can look for luns above lun 8. 97 */ 98 #define CAN_SRCH_HI_SPARSE(dv) \ 99 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 100 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 101 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 102 103 #define CAN_SRCH_HI_DENSE(dv) \ 104 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 105 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 106 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 107 108 static periph_init_t probe_periph_init; 109 110 static struct periph_driver probe_driver = 111 { 112 probe_periph_init, "probe", 113 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 114 CAM_PERIPH_DRV_EARLY 115 }; 116 117 PERIPHDRIVER_DECLARE(probe, probe_driver); 118 119 typedef enum { 120 PROBE_TUR, 121 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 122 PROBE_FULL_INQUIRY, 123 PROBE_MODE_SENSE, 124 PROBE_SERIAL_NUM_0, 125 PROBE_SERIAL_NUM_1, 126 PROBE_TUR_FOR_NEGOTIATION, 127 PROBE_INQUIRY_BASIC_DV1, 128 PROBE_INQUIRY_BASIC_DV2, 129 PROBE_DV_EXIT, 130 PROBE_INVALID 131 } probe_action; 132 133 static char *probe_action_text[] = { 134 "PROBE_TUR", 135 "PROBE_INQUIRY", 136 "PROBE_FULL_INQUIRY", 137 "PROBE_MODE_SENSE", 138 "PROBE_SERIAL_NUM_0", 139 "PROBE_SERIAL_NUM_1", 140 "PROBE_TUR_FOR_NEGOTIATION", 141 "PROBE_INQUIRY_BASIC_DV1", 142 "PROBE_INQUIRY_BASIC_DV2", 143 "PROBE_DV_EXIT", 144 "PROBE_INVALID" 145 }; 146 147 #define PROBE_SET_ACTION(softc, newaction) \ 148 do { \ 149 char **text; \ 150 text = probe_action_text; \ 151 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_INFO, \ 152 ("Probe %s to %s\n", text[(softc)->action], \ 153 text[(newaction)])); \ 154 (softc)->action = (newaction); \ 155 } while(0) 156 157 typedef enum { 158 PROBE_INQUIRY_CKSUM = 0x01, 159 PROBE_SERIAL_CKSUM = 0x02, 160 PROBE_NO_ANNOUNCE = 0x04 161 } probe_flags; 162 163 typedef struct { 164 TAILQ_HEAD(, ccb_hdr) request_ccbs; 165 probe_action action; 166 union ccb saved_ccb; 167 probe_flags flags; 168 MD5_CTX context; 169 u_int8_t digest[16]; 170 struct cam_periph *periph; 171 } probe_softc; 172 173 static const char quantum[] = "QUANTUM"; 174 static const char sony[] = "SONY"; 175 static const char west_digital[] = "WDIGTL"; 176 static const char samsung[] = "SAMSUNG"; 177 static const char seagate[] = "SEAGATE"; 178 static const char microp[] = "MICROP"; 179 180 static struct scsi_quirk_entry scsi_quirk_table[] = 181 { 182 { 183 /* Reports QUEUE FULL for temporary resource shortages */ 184 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 185 /*quirks*/0, /*mintags*/24, /*maxtags*/32 186 }, 187 { 188 /* Reports QUEUE FULL for temporary resource shortages */ 189 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 190 /*quirks*/0, /*mintags*/24, /*maxtags*/32 191 }, 192 { 193 /* Reports QUEUE FULL for temporary resource shortages */ 194 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 195 /*quirks*/0, /*mintags*/24, /*maxtags*/32 196 }, 197 { 198 /* Broken tagged queuing drive */ 199 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 200 /*quirks*/0, /*mintags*/0, /*maxtags*/0 201 }, 202 { 203 /* Broken tagged queuing drive */ 204 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 205 /*quirks*/0, /*mintags*/0, /*maxtags*/0 206 }, 207 { 208 /* Broken tagged queuing drive */ 209 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 210 /*quirks*/0, /*mintags*/0, /*maxtags*/0 211 }, 212 { 213 /* 214 * Unfortunately, the Quantum Atlas III has the same 215 * problem as the Atlas II drives above. 216 * Reported by: "Johan Granlund" <johan@granlund.nu> 217 * 218 * For future reference, the drive with the problem was: 219 * QUANTUM QM39100TD-SW N1B0 220 * 221 * It's possible that Quantum will fix the problem in later 222 * firmware revisions. If that happens, the quirk entry 223 * will need to be made specific to the firmware revisions 224 * with the problem. 225 * 226 */ 227 /* Reports QUEUE FULL for temporary resource shortages */ 228 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 229 /*quirks*/0, /*mintags*/24, /*maxtags*/32 230 }, 231 { 232 /* 233 * 18 Gig Atlas III, same problem as the 9G version. 234 * Reported by: Andre Albsmeier 235 * <andre.albsmeier@mchp.siemens.de> 236 * 237 * For future reference, the drive with the problem was: 238 * QUANTUM QM318000TD-S N491 239 */ 240 /* Reports QUEUE FULL for temporary resource shortages */ 241 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 242 /*quirks*/0, /*mintags*/24, /*maxtags*/32 243 }, 244 { 245 /* 246 * Broken tagged queuing drive 247 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 248 * and: Martin Renters <martin@tdc.on.ca> 249 */ 250 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 251 /*quirks*/0, /*mintags*/0, /*maxtags*/0 252 }, 253 /* 254 * The Seagate Medalist Pro drives have very poor write 255 * performance with anything more than 2 tags. 256 * 257 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 258 * Drive: <SEAGATE ST36530N 1444> 259 * 260 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 261 * Drive: <SEAGATE ST34520W 1281> 262 * 263 * No one has actually reported that the 9G version 264 * (ST39140*) of the Medalist Pro has the same problem, but 265 * we're assuming that it does because the 4G and 6.5G 266 * versions of the drive are broken. 267 */ 268 { 269 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 270 /*quirks*/0, /*mintags*/2, /*maxtags*/2 271 }, 272 { 273 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 274 /*quirks*/0, /*mintags*/2, /*maxtags*/2 275 }, 276 { 277 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 278 /*quirks*/0, /*mintags*/2, /*maxtags*/2 279 }, 280 { 281 /* 282 * Slow when tagged queueing is enabled. Write performance 283 * steadily drops off with more and more concurrent 284 * transactions. Best sequential write performance with 285 * tagged queueing turned off and write caching turned on. 286 * 287 * PR: kern/10398 288 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 289 * Drive: DCAS-34330 w/ "S65A" firmware. 290 * 291 * The drive with the problem had the "S65A" firmware 292 * revision, and has also been reported (by Stephen J. 293 * Roznowski <sjr@home.net>) for a drive with the "S61A" 294 * firmware revision. 295 * 296 * Although no one has reported problems with the 2 gig 297 * version of the DCAS drive, the assumption is that it 298 * has the same problems as the 4 gig version. Therefore 299 * this quirk entries disables tagged queueing for all 300 * DCAS drives. 301 */ 302 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 303 /*quirks*/0, /*mintags*/0, /*maxtags*/0 304 }, 305 { 306 /* Broken tagged queuing drive */ 307 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 308 /*quirks*/0, /*mintags*/0, /*maxtags*/0 309 }, 310 { 311 /* Broken tagged queuing drive */ 312 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 313 /*quirks*/0, /*mintags*/0, /*maxtags*/0 314 }, 315 { 316 /* This does not support other than LUN 0 */ 317 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 318 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 319 }, 320 { 321 /* 322 * Broken tagged queuing drive. 323 * Submitted by: 324 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 325 * in PR kern/9535 326 */ 327 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 328 /*quirks*/0, /*mintags*/0, /*maxtags*/0 329 }, 330 { 331 /* 332 * Slow when tagged queueing is enabled. (1.5MB/sec versus 333 * 8MB/sec.) 334 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 335 * Best performance with these drives is achieved with 336 * tagged queueing turned off, and write caching turned on. 337 */ 338 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 339 /*quirks*/0, /*mintags*/0, /*maxtags*/0 340 }, 341 { 342 /* 343 * Slow when tagged queueing is enabled. (1.5MB/sec versus 344 * 8MB/sec.) 345 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 346 * Best performance with these drives is achieved with 347 * tagged queueing turned off, and write caching turned on. 348 */ 349 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 350 /*quirks*/0, /*mintags*/0, /*maxtags*/0 351 }, 352 { 353 /* 354 * Doesn't handle queue full condition correctly, 355 * so we need to limit maxtags to what the device 356 * can handle instead of determining this automatically. 357 */ 358 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 359 /*quirks*/0, /*mintags*/2, /*maxtags*/32 360 }, 361 { 362 /* Really only one LUN */ 363 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 364 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 365 }, 366 { 367 /* I can't believe we need a quirk for DPT volumes. */ 368 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 369 CAM_QUIRK_NOLUNS, 370 /*mintags*/0, /*maxtags*/255 371 }, 372 { 373 /* 374 * Many Sony CDROM drives don't like multi-LUN probing. 375 */ 376 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 377 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 378 }, 379 { 380 /* 381 * This drive doesn't like multiple LUN probing. 382 * Submitted by: Parag Patel <parag@cgt.com> 383 */ 384 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 385 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 386 }, 387 { 388 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 389 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 390 }, 391 { 392 /* 393 * The 8200 doesn't like multi-lun probing, and probably 394 * don't like serial number requests either. 395 */ 396 { 397 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 398 "EXB-8200*", "*" 399 }, 400 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 401 }, 402 { 403 /* 404 * Let's try the same as above, but for a drive that says 405 * it's an IPL-6860 but is actually an EXB 8200. 406 */ 407 { 408 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 409 "IPL-6860*", "*" 410 }, 411 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 412 }, 413 { 414 /* 415 * These Hitachi drives don't like multi-lun probing. 416 * The PR submitter has a DK319H, but says that the Linux 417 * kernel has a similar work-around for the DK312 and DK314, 418 * so all DK31* drives are quirked here. 419 * PR: misc/18793 420 * Submitted by: Paul Haddad <paul@pth.com> 421 */ 422 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 423 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 424 }, 425 { 426 /* 427 * The Hitachi CJ series with J8A8 firmware apparantly has 428 * problems with tagged commands. 429 * PR: 23536 430 * Reported by: amagai@nue.org 431 */ 432 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 433 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 434 }, 435 { 436 /* 437 * These are the large storage arrays. 438 * Submitted by: William Carrel <william.carrel@infospace.com> 439 */ 440 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 441 CAM_QUIRK_HILUNS, 2, 1024 442 }, 443 { 444 /* 445 * This old revision of the TDC3600 is also SCSI-1, and 446 * hangs upon serial number probing. 447 */ 448 { 449 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 450 " TDC 3600", "U07:" 451 }, 452 CAM_QUIRK_NOSERIAL, /*mintags*/0, /*maxtags*/0 453 }, 454 { 455 /* 456 * Would repond to all LUNs if asked for. 457 */ 458 { 459 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 460 "CP150", "*" 461 }, 462 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 463 }, 464 { 465 /* 466 * Would repond to all LUNs if asked for. 467 */ 468 { 469 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 470 "96X2*", "*" 471 }, 472 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 473 }, 474 { 475 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 476 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 477 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 478 }, 479 { 480 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 481 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 482 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 483 }, 484 { 485 /* TeraSolutions special settings for TRC-22 RAID */ 486 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 487 /*quirks*/0, /*mintags*/55, /*maxtags*/255 488 }, 489 { 490 /* Veritas Storage Appliance */ 491 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 492 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 493 }, 494 { 495 /* 496 * Would respond to all LUNs. Device type and removable 497 * flag are jumper-selectable. 498 */ 499 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 500 "Tahiti 1", "*" 501 }, 502 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 503 }, 504 { 505 /* EasyRAID E5A aka. areca ARC-6010 */ 506 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 507 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 508 }, 509 { 510 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 511 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 512 }, 513 { 514 /* Default tagged queuing parameters for all devices */ 515 { 516 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 517 /*vendor*/"*", /*product*/"*", /*revision*/"*" 518 }, 519 /*quirks*/0, /*mintags*/2, /*maxtags*/255 520 }, 521 }; 522 523 static const int scsi_quirk_table_size = 524 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table); 525 526 static cam_status proberegister(struct cam_periph *periph, 527 void *arg); 528 static void probeschedule(struct cam_periph *probe_periph); 529 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 530 static void proberequestdefaultnegotiation(struct cam_periph *periph); 531 static int proberequestbackoff(struct cam_periph *periph, 532 struct cam_ed *device); 533 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 534 static void probecleanup(struct cam_periph *periph); 535 static void scsi_find_quirk(struct cam_ed *device); 536 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 537 static void scsi_scan_lun(struct cam_periph *periph, 538 struct cam_path *path, cam_flags flags, 539 union ccb *ccb); 540 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 541 static struct cam_ed * 542 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 543 lun_id_t lun_id); 544 static void scsi_devise_transport(struct cam_path *path); 545 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 546 struct cam_ed *device, 547 int async_update); 548 static void scsi_toggle_tags(struct cam_path *path); 549 static void scsi_dev_async(u_int32_t async_code, 550 struct cam_eb *bus, 551 struct cam_et *target, 552 struct cam_ed *device, 553 void *async_arg); 554 static void scsi_action(union ccb *start_ccb); 555 static void scsi_announce_periph(struct cam_periph *periph); 556 557 static struct xpt_xport scsi_xport = { 558 .alloc_device = scsi_alloc_device, 559 .action = scsi_action, 560 .async = scsi_dev_async, 561 .announce = scsi_announce_periph, 562 }; 563 564 struct xpt_xport * 565 scsi_get_xport(void) 566 { 567 return (&scsi_xport); 568 } 569 570 static void 571 probe_periph_init() 572 { 573 } 574 575 static cam_status 576 proberegister(struct cam_periph *periph, void *arg) 577 { 578 union ccb *request_ccb; /* CCB representing the probe request */ 579 cam_status status; 580 probe_softc *softc; 581 582 request_ccb = (union ccb *)arg; 583 if (periph == NULL) { 584 printf("proberegister: periph was NULL!!\n"); 585 return(CAM_REQ_CMP_ERR); 586 } 587 588 if (request_ccb == NULL) { 589 printf("proberegister: no probe CCB, " 590 "can't register device\n"); 591 return(CAM_REQ_CMP_ERR); 592 } 593 594 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 595 596 if (softc == NULL) { 597 printf("proberegister: Unable to probe new device. " 598 "Unable to allocate softc\n"); 599 return(CAM_REQ_CMP_ERR); 600 } 601 TAILQ_INIT(&softc->request_ccbs); 602 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 603 periph_links.tqe); 604 softc->flags = 0; 605 periph->softc = softc; 606 softc->periph = periph; 607 softc->action = PROBE_INVALID; 608 status = cam_periph_acquire(periph); 609 if (status != CAM_REQ_CMP) { 610 return (status); 611 } 612 613 614 /* 615 * Ensure we've waited at least a bus settle 616 * delay before attempting to probe the device. 617 * For HBAs that don't do bus resets, this won't make a difference. 618 */ 619 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 620 scsi_delay); 621 /* 622 * Ensure nobody slip in until probe finish. 623 */ 624 cam_freeze_devq_arg(periph->path, 625 RELSIM_RELEASE_RUNLEVEL, CAM_RL_XPT + 1); 626 probeschedule(periph); 627 return(CAM_REQ_CMP); 628 } 629 630 static void 631 probeschedule(struct cam_periph *periph) 632 { 633 struct ccb_pathinq cpi; 634 union ccb *ccb; 635 probe_softc *softc; 636 637 softc = (probe_softc *)periph->softc; 638 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 639 640 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 641 cpi.ccb_h.func_code = XPT_PATH_INQ; 642 xpt_action((union ccb *)&cpi); 643 644 /* 645 * If a device has gone away and another device, or the same one, 646 * is back in the same place, it should have a unit attention 647 * condition pending. It will not report the unit attention in 648 * response to an inquiry, which may leave invalid transfer 649 * negotiations in effect. The TUR will reveal the unit attention 650 * condition. Only send the TUR for lun 0, since some devices 651 * will get confused by commands other than inquiry to non-existent 652 * luns. If you think a device has gone away start your scan from 653 * lun 0. This will insure that any bogus transfer settings are 654 * invalidated. 655 * 656 * If we haven't seen the device before and the controller supports 657 * some kind of transfer negotiation, negotiate with the first 658 * sent command if no bus reset was performed at startup. This 659 * ensures that the device is not confused by transfer negotiation 660 * settings left over by loader or BIOS action. 661 */ 662 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 663 && (ccb->ccb_h.target_lun == 0)) { 664 PROBE_SET_ACTION(softc, PROBE_TUR); 665 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 666 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 667 proberequestdefaultnegotiation(periph); 668 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 669 } else { 670 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 671 } 672 673 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 674 softc->flags |= PROBE_NO_ANNOUNCE; 675 else 676 softc->flags &= ~PROBE_NO_ANNOUNCE; 677 678 xpt_schedule(periph, CAM_PRIORITY_XPT); 679 } 680 681 static void 682 probestart(struct cam_periph *periph, union ccb *start_ccb) 683 { 684 /* Probe the device that our peripheral driver points to */ 685 struct ccb_scsiio *csio; 686 probe_softc *softc; 687 688 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 689 690 softc = (probe_softc *)periph->softc; 691 csio = &start_ccb->csio; 692 693 switch (softc->action) { 694 case PROBE_TUR: 695 case PROBE_TUR_FOR_NEGOTIATION: 696 case PROBE_DV_EXIT: 697 { 698 scsi_test_unit_ready(csio, 699 /*retries*/10, 700 probedone, 701 MSG_SIMPLE_Q_TAG, 702 SSD_FULL_SIZE, 703 /*timeout*/60000); 704 break; 705 } 706 case PROBE_INQUIRY: 707 case PROBE_FULL_INQUIRY: 708 case PROBE_INQUIRY_BASIC_DV1: 709 case PROBE_INQUIRY_BASIC_DV2: 710 { 711 u_int inquiry_len; 712 struct scsi_inquiry_data *inq_buf; 713 714 inq_buf = &periph->path->device->inq_data; 715 716 /* 717 * If the device is currently configured, we calculate an 718 * MD5 checksum of the inquiry data, and if the serial number 719 * length is greater than 0, add the serial number data 720 * into the checksum as well. Once the inquiry and the 721 * serial number check finish, we attempt to figure out 722 * whether we still have the same device. 723 */ 724 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) { 725 726 MD5Init(&softc->context); 727 MD5Update(&softc->context, (unsigned char *)inq_buf, 728 sizeof(struct scsi_inquiry_data)); 729 softc->flags |= PROBE_INQUIRY_CKSUM; 730 if (periph->path->device->serial_num_len > 0) { 731 MD5Update(&softc->context, 732 periph->path->device->serial_num, 733 periph->path->device->serial_num_len); 734 softc->flags |= PROBE_SERIAL_CKSUM; 735 } 736 MD5Final(softc->digest, &softc->context); 737 } 738 739 if (softc->action == PROBE_INQUIRY) 740 inquiry_len = SHORT_INQUIRY_LENGTH; 741 else 742 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 743 744 /* 745 * Some parallel SCSI devices fail to send an 746 * ignore wide residue message when dealing with 747 * odd length inquiry requests. Round up to be 748 * safe. 749 */ 750 inquiry_len = roundup2(inquiry_len, 2); 751 752 if (softc->action == PROBE_INQUIRY_BASIC_DV1 753 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 754 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 755 } 756 if (inq_buf == NULL) { 757 xpt_print(periph->path, "malloc failure- skipping Basic" 758 "Domain Validation\n"); 759 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 760 scsi_test_unit_ready(csio, 761 /*retries*/4, 762 probedone, 763 MSG_SIMPLE_Q_TAG, 764 SSD_FULL_SIZE, 765 /*timeout*/60000); 766 break; 767 } 768 scsi_inquiry(csio, 769 /*retries*/4, 770 probedone, 771 MSG_SIMPLE_Q_TAG, 772 (u_int8_t *)inq_buf, 773 inquiry_len, 774 /*evpd*/FALSE, 775 /*page_code*/0, 776 SSD_MIN_SIZE, 777 /*timeout*/60 * 1000); 778 break; 779 } 780 case PROBE_MODE_SENSE: 781 { 782 void *mode_buf; 783 int mode_buf_len; 784 785 mode_buf_len = sizeof(struct scsi_mode_header_6) 786 + sizeof(struct scsi_mode_blk_desc) 787 + sizeof(struct scsi_control_page); 788 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 789 if (mode_buf != NULL) { 790 scsi_mode_sense(csio, 791 /*retries*/4, 792 probedone, 793 MSG_SIMPLE_Q_TAG, 794 /*dbd*/FALSE, 795 SMS_PAGE_CTRL_CURRENT, 796 SMS_CONTROL_MODE_PAGE, 797 mode_buf, 798 mode_buf_len, 799 SSD_FULL_SIZE, 800 /*timeout*/60000); 801 break; 802 } 803 xpt_print(periph->path, "Unable to mode sense control page - " 804 "malloc failure\n"); 805 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_0); 806 } 807 /* FALLTHROUGH */ 808 case PROBE_SERIAL_NUM_0: 809 { 810 struct scsi_vpd_supported_page_list *vpd_list = NULL; 811 struct cam_ed *device; 812 813 device = periph->path->device; 814 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOSERIAL) == 0) { 815 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 816 M_NOWAIT | M_ZERO); 817 } 818 819 if (vpd_list != NULL) { 820 scsi_inquiry(csio, 821 /*retries*/4, 822 probedone, 823 MSG_SIMPLE_Q_TAG, 824 (u_int8_t *)vpd_list, 825 sizeof(*vpd_list), 826 /*evpd*/TRUE, 827 SVPD_SUPPORTED_PAGE_LIST, 828 SSD_MIN_SIZE, 829 /*timeout*/60 * 1000); 830 break; 831 } 832 /* 833 * We'll have to do without, let our probedone 834 * routine finish up for us. 835 */ 836 start_ccb->csio.data_ptr = NULL; 837 probedone(periph, start_ccb); 838 return; 839 } 840 case PROBE_SERIAL_NUM_1: 841 { 842 struct scsi_vpd_unit_serial_number *serial_buf; 843 struct cam_ed* device; 844 845 serial_buf = NULL; 846 device = periph->path->device; 847 if (device->serial_num != NULL) { 848 free(device->serial_num, M_CAMXPT); 849 device->serial_num = NULL; 850 device->serial_num_len = 0; 851 } 852 853 serial_buf = (struct scsi_vpd_unit_serial_number *) 854 malloc(sizeof(*serial_buf), M_CAMXPT, M_NOWAIT|M_ZERO); 855 856 if (serial_buf != NULL) { 857 scsi_inquiry(csio, 858 /*retries*/4, 859 probedone, 860 MSG_SIMPLE_Q_TAG, 861 (u_int8_t *)serial_buf, 862 sizeof(*serial_buf), 863 /*evpd*/TRUE, 864 SVPD_UNIT_SERIAL_NUMBER, 865 SSD_MIN_SIZE, 866 /*timeout*/60 * 1000); 867 break; 868 } 869 /* 870 * We'll have to do without, let our probedone 871 * routine finish up for us. 872 */ 873 start_ccb->csio.data_ptr = NULL; 874 probedone(periph, start_ccb); 875 return; 876 } 877 case PROBE_INVALID: 878 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 879 ("probestart: invalid action state\n")); 880 default: 881 break; 882 } 883 xpt_action(start_ccb); 884 } 885 886 static void 887 proberequestdefaultnegotiation(struct cam_periph *periph) 888 { 889 struct ccb_trans_settings cts; 890 891 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 892 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 893 cts.type = CTS_TYPE_USER_SETTINGS; 894 xpt_action((union ccb *)&cts); 895 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 896 return; 897 } 898 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 899 cts.type = CTS_TYPE_CURRENT_SETTINGS; 900 xpt_action((union ccb *)&cts); 901 } 902 903 /* 904 * Backoff Negotiation Code- only pertinent for SPI devices. 905 */ 906 static int 907 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 908 { 909 struct ccb_trans_settings cts; 910 struct ccb_trans_settings_spi *spi; 911 912 memset(&cts, 0, sizeof (cts)); 913 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 914 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 915 cts.type = CTS_TYPE_CURRENT_SETTINGS; 916 xpt_action((union ccb *)&cts); 917 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 918 if (bootverbose) { 919 xpt_print(periph->path, 920 "failed to get current device settings\n"); 921 } 922 return (0); 923 } 924 if (cts.transport != XPORT_SPI) { 925 if (bootverbose) { 926 xpt_print(periph->path, "not SPI transport\n"); 927 } 928 return (0); 929 } 930 spi = &cts.xport_specific.spi; 931 932 /* 933 * We cannot renegotiate sync rate if we don't have one. 934 */ 935 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 936 if (bootverbose) { 937 xpt_print(periph->path, "no sync rate known\n"); 938 } 939 return (0); 940 } 941 942 /* 943 * We'll assert that we don't have to touch PPR options- the 944 * SIM will see what we do with period and offset and adjust 945 * the PPR options as appropriate. 946 */ 947 948 /* 949 * A sync rate with unknown or zero offset is nonsensical. 950 * A sync period of zero means Async. 951 */ 952 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 953 || spi->sync_offset == 0 || spi->sync_period == 0) { 954 if (bootverbose) { 955 xpt_print(periph->path, "no sync rate available\n"); 956 } 957 return (0); 958 } 959 960 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 961 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 962 ("hit async: giving up on DV\n")); 963 return (0); 964 } 965 966 967 /* 968 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 969 * We don't try to remember 'last' settings to see if the SIM actually 970 * gets into the speed we want to set. We check on the SIM telling 971 * us that a requested speed is bad, but otherwise don't try and 972 * check the speed due to the asynchronous and handshake nature 973 * of speed setting. 974 */ 975 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 976 for (;;) { 977 spi->sync_period++; 978 if (spi->sync_period >= 0xf) { 979 spi->sync_period = 0; 980 spi->sync_offset = 0; 981 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 982 ("setting to async for DV\n")); 983 /* 984 * Once we hit async, we don't want to try 985 * any more settings. 986 */ 987 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 988 } else if (bootverbose) { 989 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 990 ("DV: period 0x%x\n", spi->sync_period)); 991 printf("setting period to 0x%x\n", spi->sync_period); 992 } 993 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 994 cts.type = CTS_TYPE_CURRENT_SETTINGS; 995 xpt_action((union ccb *)&cts); 996 if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 997 break; 998 } 999 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1000 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1001 if (spi->sync_period == 0) { 1002 return (0); 1003 } 1004 } 1005 return (1); 1006 } 1007 1008 static void 1009 probedone(struct cam_periph *periph, union ccb *done_ccb) 1010 { 1011 probe_softc *softc; 1012 struct cam_path *path; 1013 u_int32_t priority; 1014 1015 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1016 1017 softc = (probe_softc *)periph->softc; 1018 path = done_ccb->ccb_h.path; 1019 priority = done_ccb->ccb_h.pinfo.priority; 1020 1021 switch (softc->action) { 1022 case PROBE_TUR: 1023 { 1024 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1025 1026 if (cam_periph_error(done_ccb, 0, 1027 SF_NO_PRINT, NULL) == ERESTART) 1028 return; 1029 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1030 /* Don't wedge the queue */ 1031 xpt_release_devq(done_ccb->ccb_h.path, 1032 /*count*/1, 1033 /*run_queue*/TRUE); 1034 } 1035 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1036 xpt_release_ccb(done_ccb); 1037 xpt_schedule(periph, priority); 1038 return; 1039 } 1040 case PROBE_INQUIRY: 1041 case PROBE_FULL_INQUIRY: 1042 { 1043 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1044 struct scsi_inquiry_data *inq_buf; 1045 u_int8_t periph_qual; 1046 1047 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1048 inq_buf = &path->device->inq_data; 1049 1050 periph_qual = SID_QUAL(inq_buf); 1051 1052 switch(periph_qual) { 1053 case SID_QUAL_LU_CONNECTED: 1054 { 1055 u_int8_t len; 1056 1057 /* 1058 * We conservatively request only 1059 * SHORT_INQUIRY_LEN bytes of inquiry 1060 * information during our first try 1061 * at sending an INQUIRY. If the device 1062 * has more information to give, 1063 * perform a second request specifying 1064 * the amount of information the device 1065 * is willing to give. 1066 */ 1067 len = inq_buf->additional_length 1068 + offsetof(struct scsi_inquiry_data, 1069 additional_length) + 1; 1070 if (softc->action == PROBE_INQUIRY 1071 && len > SHORT_INQUIRY_LENGTH) { 1072 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1073 xpt_release_ccb(done_ccb); 1074 xpt_schedule(periph, priority); 1075 return; 1076 } 1077 1078 scsi_find_quirk(path->device); 1079 1080 scsi_devise_transport(path); 1081 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1082 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1083 else 1084 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_0); 1085 1086 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1087 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1088 xpt_acquire_device(path->device); 1089 } 1090 xpt_release_ccb(done_ccb); 1091 xpt_schedule(periph, priority); 1092 return; 1093 } 1094 default: 1095 break; 1096 } 1097 } else if (cam_periph_error(done_ccb, 0, 1098 done_ccb->ccb_h.target_lun > 0 1099 ? SF_RETRY_UA|SF_QUIET_IR 1100 : SF_RETRY_UA, 1101 &softc->saved_ccb) == ERESTART) { 1102 return; 1103 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1104 /* Don't wedge the queue */ 1105 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1106 /*run_queue*/TRUE); 1107 } 1108 /* 1109 * If we get to this point, we got an error status back 1110 * from the inquiry and the error status doesn't require 1111 * automatically retrying the command. Therefore, the 1112 * inquiry failed. If we had inquiry information before 1113 * for this device, but this latest inquiry command failed, 1114 * the device has probably gone away. If this device isn't 1115 * already marked unconfigured, notify the peripheral 1116 * drivers that this device is no more. 1117 */ 1118 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1119 /* Send the async notification. */ 1120 xpt_async(AC_LOST_DEVICE, path, NULL); 1121 1122 xpt_release_ccb(done_ccb); 1123 break; 1124 } 1125 case PROBE_MODE_SENSE: 1126 { 1127 struct ccb_scsiio *csio; 1128 struct scsi_mode_header_6 *mode_hdr; 1129 1130 csio = &done_ccb->csio; 1131 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1132 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1133 struct scsi_control_page *page; 1134 u_int8_t *offset; 1135 1136 offset = ((u_int8_t *)&mode_hdr[1]) 1137 + mode_hdr->blk_desc_len; 1138 page = (struct scsi_control_page *)offset; 1139 path->device->queue_flags = page->queue_flags; 1140 } else if (cam_periph_error(done_ccb, 0, 1141 SF_RETRY_UA|SF_NO_PRINT, 1142 &softc->saved_ccb) == ERESTART) { 1143 return; 1144 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1145 /* Don't wedge the queue */ 1146 xpt_release_devq(done_ccb->ccb_h.path, 1147 /*count*/1, /*run_queue*/TRUE); 1148 } 1149 xpt_release_ccb(done_ccb); 1150 free(mode_hdr, M_CAMXPT); 1151 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_0); 1152 xpt_schedule(periph, priority); 1153 return; 1154 } 1155 case PROBE_SERIAL_NUM_0: 1156 { 1157 struct ccb_scsiio *csio; 1158 struct scsi_vpd_supported_page_list *page_list; 1159 int length, serialnum_supported, i; 1160 1161 serialnum_supported = 0; 1162 csio = &done_ccb->csio; 1163 page_list = 1164 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1165 1166 if (page_list == NULL) { 1167 /* 1168 * Don't process the command as it was never sent 1169 */ 1170 } else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 1171 && (page_list->length > 0)) { 1172 length = min(page_list->length, 1173 SVPD_SUPPORTED_PAGES_SIZE); 1174 for (i = 0; i < length; i++) { 1175 if (page_list->list[i] == 1176 SVPD_UNIT_SERIAL_NUMBER) { 1177 serialnum_supported = 1; 1178 break; 1179 } 1180 } 1181 } else if (cam_periph_error(done_ccb, 0, 1182 SF_RETRY_UA|SF_NO_PRINT, 1183 &softc->saved_ccb) == ERESTART) { 1184 return; 1185 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1186 /* Don't wedge the queue */ 1187 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1188 /*run_queue*/TRUE); 1189 } 1190 1191 if (page_list != NULL) 1192 free(page_list, M_CAMXPT); 1193 1194 if (serialnum_supported) { 1195 xpt_release_ccb(done_ccb); 1196 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_1); 1197 xpt_schedule(periph, priority); 1198 return; 1199 } 1200 1201 csio->data_ptr = NULL; 1202 /* FALLTHROUGH */ 1203 } 1204 1205 case PROBE_SERIAL_NUM_1: 1206 { 1207 struct ccb_scsiio *csio; 1208 struct scsi_vpd_unit_serial_number *serial_buf; 1209 u_int32_t priority; 1210 int changed; 1211 int have_serialnum; 1212 1213 changed = 1; 1214 have_serialnum = 0; 1215 csio = &done_ccb->csio; 1216 priority = done_ccb->ccb_h.pinfo.priority; 1217 serial_buf = 1218 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1219 1220 /* Clean up from previous instance of this device */ 1221 if (path->device->serial_num != NULL) { 1222 free(path->device->serial_num, M_CAMXPT); 1223 path->device->serial_num = NULL; 1224 path->device->serial_num_len = 0; 1225 } 1226 1227 if (serial_buf == NULL) { 1228 /* 1229 * Don't process the command as it was never sent 1230 */ 1231 } else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 1232 && (serial_buf->length > 0)) { 1233 1234 have_serialnum = 1; 1235 path->device->serial_num = 1236 (u_int8_t *)malloc((serial_buf->length + 1), 1237 M_CAMXPT, M_NOWAIT); 1238 if (path->device->serial_num != NULL) { 1239 bcopy(serial_buf->serial_num, 1240 path->device->serial_num, 1241 serial_buf->length); 1242 path->device->serial_num_len = 1243 serial_buf->length; 1244 path->device->serial_num[serial_buf->length] 1245 = '\0'; 1246 } 1247 } else if (cam_periph_error(done_ccb, 0, 1248 SF_RETRY_UA|SF_NO_PRINT, 1249 &softc->saved_ccb) == ERESTART) { 1250 return; 1251 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1252 /* Don't wedge the queue */ 1253 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1254 /*run_queue*/TRUE); 1255 } 1256 1257 /* 1258 * Let's see if we have seen this device before. 1259 */ 1260 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1261 MD5_CTX context; 1262 u_int8_t digest[16]; 1263 1264 MD5Init(&context); 1265 1266 MD5Update(&context, 1267 (unsigned char *)&path->device->inq_data, 1268 sizeof(struct scsi_inquiry_data)); 1269 1270 if (have_serialnum) 1271 MD5Update(&context, serial_buf->serial_num, 1272 serial_buf->length); 1273 1274 MD5Final(digest, &context); 1275 if (bcmp(softc->digest, digest, 16) == 0) 1276 changed = 0; 1277 1278 /* 1279 * XXX Do we need to do a TUR in order to ensure 1280 * that the device really hasn't changed??? 1281 */ 1282 if ((changed != 0) 1283 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1284 xpt_async(AC_LOST_DEVICE, path, NULL); 1285 } 1286 if (serial_buf != NULL) 1287 free(serial_buf, M_CAMXPT); 1288 1289 if (changed != 0) { 1290 /* 1291 * Now that we have all the necessary 1292 * information to safely perform transfer 1293 * negotiations... Controllers don't perform 1294 * any negotiation or tagged queuing until 1295 * after the first XPT_SET_TRAN_SETTINGS ccb is 1296 * received. So, on a new device, just retrieve 1297 * the user settings, and set them as the current 1298 * settings to set the device up. 1299 */ 1300 proberequestdefaultnegotiation(periph); 1301 xpt_release_ccb(done_ccb); 1302 1303 /* 1304 * Perform a TUR to allow the controller to 1305 * perform any necessary transfer negotiation. 1306 */ 1307 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1308 xpt_schedule(periph, priority); 1309 return; 1310 } 1311 xpt_release_ccb(done_ccb); 1312 break; 1313 } 1314 case PROBE_TUR_FOR_NEGOTIATION: 1315 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1316 DELAY(500000); 1317 if (cam_periph_error(done_ccb, 0, SF_RETRY_UA, 1318 NULL) == ERESTART) 1319 return; 1320 } 1321 /* FALLTHROUGH */ 1322 case PROBE_DV_EXIT: 1323 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1324 /* Don't wedge the queue */ 1325 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1326 /*run_queue*/TRUE); 1327 } 1328 /* 1329 * Do Domain Validation for lun 0 on devices that claim 1330 * to support Synchronous Transfer modes. 1331 */ 1332 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1333 && done_ccb->ccb_h.target_lun == 0 1334 && (path->device->inq_data.flags & SID_Sync) != 0 1335 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1336 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1337 ("Begin Domain Validation\n")); 1338 path->device->flags |= CAM_DEV_IN_DV; 1339 xpt_release_ccb(done_ccb); 1340 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1341 xpt_schedule(periph, priority); 1342 return; 1343 } 1344 if (softc->action == PROBE_DV_EXIT) { 1345 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1346 ("Leave Domain Validation\n")); 1347 } 1348 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1349 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1350 xpt_acquire_device(path->device); 1351 } 1352 path->device->flags &= 1353 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1354 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1355 /* Inform the XPT that a new device has been found */ 1356 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1357 xpt_action(done_ccb); 1358 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1359 done_ccb); 1360 } 1361 xpt_release_ccb(done_ccb); 1362 break; 1363 case PROBE_INQUIRY_BASIC_DV1: 1364 case PROBE_INQUIRY_BASIC_DV2: 1365 { 1366 struct scsi_inquiry_data *nbuf; 1367 struct ccb_scsiio *csio; 1368 1369 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1370 /* Don't wedge the queue */ 1371 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1372 /*run_queue*/TRUE); 1373 } 1374 csio = &done_ccb->csio; 1375 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1376 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1377 xpt_print(path, 1378 "inquiry data fails comparison at DV%d step\n", 1379 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1380 if (proberequestbackoff(periph, path->device)) { 1381 path->device->flags &= ~CAM_DEV_IN_DV; 1382 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1383 } else { 1384 /* give up */ 1385 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1386 } 1387 free(nbuf, M_CAMXPT); 1388 xpt_release_ccb(done_ccb); 1389 xpt_schedule(periph, priority); 1390 return; 1391 } 1392 free(nbuf, M_CAMXPT); 1393 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1394 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1395 xpt_release_ccb(done_ccb); 1396 xpt_schedule(periph, priority); 1397 return; 1398 } 1399 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1400 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1401 ("Leave Domain Validation Successfully\n")); 1402 } 1403 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1404 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1405 xpt_acquire_device(path->device); 1406 } 1407 path->device->flags &= 1408 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1409 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1410 /* Inform the XPT that a new device has been found */ 1411 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1412 xpt_action(done_ccb); 1413 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1414 done_ccb); 1415 } 1416 xpt_release_ccb(done_ccb); 1417 break; 1418 } 1419 case PROBE_INVALID: 1420 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_INFO, 1421 ("probedone: invalid action state\n")); 1422 default: 1423 break; 1424 } 1425 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1426 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1427 done_ccb->ccb_h.status = CAM_REQ_CMP; 1428 xpt_done(done_ccb); 1429 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1430 cam_release_devq(periph->path, 1431 RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_XPT + 1, FALSE); 1432 cam_periph_invalidate(periph); 1433 cam_periph_release_locked(periph); 1434 } else { 1435 probeschedule(periph); 1436 } 1437 } 1438 1439 static void 1440 probecleanup(struct cam_periph *periph) 1441 { 1442 free(periph->softc, M_CAMXPT); 1443 } 1444 1445 static void 1446 scsi_find_quirk(struct cam_ed *device) 1447 { 1448 struct scsi_quirk_entry *quirk; 1449 caddr_t match; 1450 1451 match = cam_quirkmatch((caddr_t)&device->inq_data, 1452 (caddr_t)scsi_quirk_table, 1453 sizeof(scsi_quirk_table) / 1454 sizeof(*scsi_quirk_table), 1455 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1456 1457 if (match == NULL) 1458 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1459 1460 quirk = (struct scsi_quirk_entry *)match; 1461 device->quirk = quirk; 1462 device->mintags = quirk->mintags; 1463 device->maxtags = quirk->maxtags; 1464 } 1465 1466 static int 1467 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1468 { 1469 int error, bool; 1470 1471 bool = cam_srch_hi; 1472 error = sysctl_handle_int(oidp, &bool, 0, req); 1473 if (error != 0 || req->newptr == NULL) 1474 return (error); 1475 if (bool == 0 || bool == 1) { 1476 cam_srch_hi = bool; 1477 return (0); 1478 } else { 1479 return (EINVAL); 1480 } 1481 } 1482 1483 typedef struct { 1484 union ccb *request_ccb; 1485 struct ccb_pathinq *cpi; 1486 int counter; 1487 } scsi_scan_bus_info; 1488 1489 /* 1490 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1491 * As the scan progresses, scsi_scan_bus is used as the 1492 * callback on completion function. 1493 */ 1494 static void 1495 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1496 { 1497 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1498 ("scsi_scan_bus\n")); 1499 switch (request_ccb->ccb_h.func_code) { 1500 case XPT_SCAN_BUS: 1501 { 1502 scsi_scan_bus_info *scan_info; 1503 union ccb *work_ccb, *reset_ccb; 1504 struct cam_path *path; 1505 u_int i; 1506 u_int max_target; 1507 u_int initiator_id; 1508 1509 /* Find out the characteristics of the bus */ 1510 work_ccb = xpt_alloc_ccb_nowait(); 1511 if (work_ccb == NULL) { 1512 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1513 xpt_done(request_ccb); 1514 return; 1515 } 1516 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1517 request_ccb->ccb_h.pinfo.priority); 1518 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1519 xpt_action(work_ccb); 1520 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1521 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1522 xpt_free_ccb(work_ccb); 1523 xpt_done(request_ccb); 1524 return; 1525 } 1526 1527 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1528 /* 1529 * Can't scan the bus on an adapter that 1530 * cannot perform the initiator role. 1531 */ 1532 request_ccb->ccb_h.status = CAM_REQ_CMP; 1533 xpt_free_ccb(work_ccb); 1534 xpt_done(request_ccb); 1535 return; 1536 } 1537 1538 /* We may need to reset bus first, if we haven't done it yet. */ 1539 if ((work_ccb->cpi.hba_inquiry & 1540 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1541 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1542 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) { 1543 reset_ccb = xpt_alloc_ccb_nowait(); 1544 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1545 CAM_PRIORITY_NONE); 1546 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1547 xpt_action(reset_ccb); 1548 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1549 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1550 xpt_free_ccb(reset_ccb); 1551 xpt_free_ccb(work_ccb); 1552 xpt_done(request_ccb); 1553 return; 1554 } 1555 xpt_free_ccb(reset_ccb); 1556 } 1557 1558 /* Save some state for use while we probe for devices */ 1559 scan_info = (scsi_scan_bus_info *) 1560 malloc(sizeof(scsi_scan_bus_info), M_CAMXPT, M_NOWAIT); 1561 if (scan_info == NULL) { 1562 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1563 xpt_done(request_ccb); 1564 return; 1565 } 1566 scan_info->request_ccb = request_ccb; 1567 scan_info->cpi = &work_ccb->cpi; 1568 1569 /* Cache on our stack so we can work asynchronously */ 1570 max_target = scan_info->cpi->max_target; 1571 initiator_id = scan_info->cpi->initiator_id; 1572 1573 1574 /* 1575 * We can scan all targets in parallel, or do it sequentially. 1576 */ 1577 if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1578 max_target = 0; 1579 scan_info->counter = 0; 1580 } else { 1581 scan_info->counter = scan_info->cpi->max_target + 1; 1582 if (scan_info->cpi->initiator_id < scan_info->counter) { 1583 scan_info->counter--; 1584 } 1585 } 1586 1587 for (i = 0; i <= max_target; i++) { 1588 cam_status status; 1589 if (i == initiator_id) 1590 continue; 1591 1592 status = xpt_create_path(&path, xpt_periph, 1593 request_ccb->ccb_h.path_id, 1594 i, 0); 1595 if (status != CAM_REQ_CMP) { 1596 printf("scsi_scan_bus: xpt_create_path failed" 1597 " with status %#x, bus scan halted\n", 1598 status); 1599 free(scan_info, M_CAMXPT); 1600 request_ccb->ccb_h.status = status; 1601 xpt_free_ccb(work_ccb); 1602 xpt_done(request_ccb); 1603 break; 1604 } 1605 work_ccb = xpt_alloc_ccb_nowait(); 1606 if (work_ccb == NULL) { 1607 xpt_free_ccb((union ccb *)scan_info->cpi); 1608 free(scan_info, M_CAMXPT); 1609 xpt_free_path(path); 1610 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1611 xpt_done(request_ccb); 1612 break; 1613 } 1614 xpt_setup_ccb(&work_ccb->ccb_h, path, 1615 request_ccb->ccb_h.pinfo.priority); 1616 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1617 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 1618 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 1619 work_ccb->crcn.flags = request_ccb->crcn.flags; 1620 xpt_action(work_ccb); 1621 } 1622 break; 1623 } 1624 case XPT_SCAN_LUN: 1625 { 1626 cam_status status; 1627 struct cam_path *path; 1628 scsi_scan_bus_info *scan_info; 1629 path_id_t path_id; 1630 target_id_t target_id; 1631 lun_id_t lun_id; 1632 1633 /* Reuse the same CCB to query if a device was really found */ 1634 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 1635 xpt_setup_ccb(&request_ccb->ccb_h, request_ccb->ccb_h.path, 1636 request_ccb->ccb_h.pinfo.priority); 1637 request_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1638 1639 path_id = request_ccb->ccb_h.path_id; 1640 target_id = request_ccb->ccb_h.target_id; 1641 lun_id = request_ccb->ccb_h.target_lun; 1642 xpt_action(request_ccb); 1643 1644 if (request_ccb->ccb_h.status != CAM_REQ_CMP) { 1645 struct cam_ed *device; 1646 struct cam_et *target; 1647 int phl; 1648 1649 /* 1650 * If we already probed lun 0 successfully, or 1651 * we have additional configured luns on this 1652 * target that might have "gone away", go onto 1653 * the next lun. 1654 */ 1655 target = request_ccb->ccb_h.path->target; 1656 /* 1657 * We may touch devices that we don't 1658 * hold references too, so ensure they 1659 * don't disappear out from under us. 1660 * The target above is referenced by the 1661 * path in the request ccb. 1662 */ 1663 phl = 0; 1664 device = TAILQ_FIRST(&target->ed_entries); 1665 if (device != NULL) { 1666 phl = CAN_SRCH_HI_SPARSE(device); 1667 if (device->lun_id == 0) 1668 device = TAILQ_NEXT(device, links); 1669 } 1670 if ((lun_id != 0) || (device != NULL)) { 1671 if (lun_id < (CAM_SCSI2_MAXLUN-1) || phl) 1672 lun_id++; 1673 } 1674 } else { 1675 struct cam_ed *device; 1676 1677 device = request_ccb->ccb_h.path->device; 1678 1679 if ((SCSI_QUIRK(device)->quirks & 1680 CAM_QUIRK_NOLUNS) == 0) { 1681 /* Try the next lun */ 1682 if (lun_id < (CAM_SCSI2_MAXLUN-1) 1683 || CAN_SRCH_HI_DENSE(device)) 1684 lun_id++; 1685 } 1686 } 1687 1688 /* 1689 * Free the current request path- we're done with it. 1690 */ 1691 xpt_free_path(request_ccb->ccb_h.path); 1692 1693 /* 1694 * Check to see if we scan any further luns. 1695 */ 1696 if (lun_id == request_ccb->ccb_h.target_lun 1697 || lun_id > scan_info->cpi->max_lun) { 1698 int done; 1699 1700 hop_again: 1701 done = 0; 1702 if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1703 scan_info->counter++; 1704 if (scan_info->counter == 1705 scan_info->cpi->initiator_id) { 1706 scan_info->counter++; 1707 } 1708 if (scan_info->counter >= 1709 scan_info->cpi->max_target+1) { 1710 done = 1; 1711 } 1712 } else { 1713 scan_info->counter--; 1714 if (scan_info->counter == 0) { 1715 done = 1; 1716 } 1717 } 1718 if (done) { 1719 xpt_free_ccb(request_ccb); 1720 xpt_free_ccb((union ccb *)scan_info->cpi); 1721 request_ccb = scan_info->request_ccb; 1722 free(scan_info, M_CAMXPT); 1723 request_ccb->ccb_h.status = CAM_REQ_CMP; 1724 xpt_done(request_ccb); 1725 break; 1726 } 1727 1728 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 1729 xpt_free_ccb(request_ccb); 1730 break; 1731 } 1732 status = xpt_create_path(&path, xpt_periph, 1733 scan_info->request_ccb->ccb_h.path_id, 1734 scan_info->counter, 0); 1735 if (status != CAM_REQ_CMP) { 1736 printf("scsi_scan_bus: xpt_create_path failed" 1737 " with status %#x, bus scan halted\n", 1738 status); 1739 xpt_free_ccb(request_ccb); 1740 xpt_free_ccb((union ccb *)scan_info->cpi); 1741 request_ccb = scan_info->request_ccb; 1742 free(scan_info, M_CAMXPT); 1743 request_ccb->ccb_h.status = status; 1744 xpt_done(request_ccb); 1745 break; 1746 } 1747 xpt_setup_ccb(&request_ccb->ccb_h, path, 1748 request_ccb->ccb_h.pinfo.priority); 1749 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1750 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 1751 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 1752 request_ccb->crcn.flags = 1753 scan_info->request_ccb->crcn.flags; 1754 } else { 1755 status = xpt_create_path(&path, xpt_periph, 1756 path_id, target_id, lun_id); 1757 if (status != CAM_REQ_CMP) { 1758 printf("scsi_scan_bus: xpt_create_path failed " 1759 "with status %#x, halting LUN scan\n", 1760 status); 1761 goto hop_again; 1762 } 1763 xpt_setup_ccb(&request_ccb->ccb_h, path, 1764 request_ccb->ccb_h.pinfo.priority); 1765 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1766 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 1767 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 1768 request_ccb->crcn.flags = 1769 scan_info->request_ccb->crcn.flags; 1770 } 1771 xpt_action(request_ccb); 1772 break; 1773 } 1774 default: 1775 break; 1776 } 1777 } 1778 1779 static void 1780 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 1781 cam_flags flags, union ccb *request_ccb) 1782 { 1783 struct ccb_pathinq cpi; 1784 cam_status status; 1785 struct cam_path *new_path; 1786 struct cam_periph *old_periph; 1787 1788 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 1789 1790 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 1791 cpi.ccb_h.func_code = XPT_PATH_INQ; 1792 xpt_action((union ccb *)&cpi); 1793 1794 if (cpi.ccb_h.status != CAM_REQ_CMP) { 1795 if (request_ccb != NULL) { 1796 request_ccb->ccb_h.status = cpi.ccb_h.status; 1797 xpt_done(request_ccb); 1798 } 1799 return; 1800 } 1801 1802 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1803 /* 1804 * Can't scan the bus on an adapter that 1805 * cannot perform the initiator role. 1806 */ 1807 if (request_ccb != NULL) { 1808 request_ccb->ccb_h.status = CAM_REQ_CMP; 1809 xpt_done(request_ccb); 1810 } 1811 return; 1812 } 1813 1814 if (request_ccb == NULL) { 1815 request_ccb = malloc(sizeof(union ccb), M_CAMXPT, M_NOWAIT); 1816 if (request_ccb == NULL) { 1817 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 1818 "can't continue\n"); 1819 return; 1820 } 1821 new_path = malloc(sizeof(*new_path), M_CAMXPT, M_NOWAIT); 1822 if (new_path == NULL) { 1823 xpt_print(path, "scsi_scan_lun: can't allocate path, " 1824 "can't continue\n"); 1825 free(request_ccb, M_CAMXPT); 1826 return; 1827 } 1828 status = xpt_compile_path(new_path, xpt_periph, 1829 path->bus->path_id, 1830 path->target->target_id, 1831 path->device->lun_id); 1832 1833 if (status != CAM_REQ_CMP) { 1834 xpt_print(path, "scsi_scan_lun: can't compile path, " 1835 "can't continue\n"); 1836 free(request_ccb, M_CAMXPT); 1837 free(new_path, M_CAMXPT); 1838 return; 1839 } 1840 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 1841 request_ccb->ccb_h.cbfcnp = xptscandone; 1842 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1843 request_ccb->crcn.flags = flags; 1844 } 1845 1846 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 1847 probe_softc *softc; 1848 1849 softc = (probe_softc *)old_periph->softc; 1850 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 1851 periph_links.tqe); 1852 } else { 1853 status = cam_periph_alloc(proberegister, NULL, probecleanup, 1854 probestart, "probe", 1855 CAM_PERIPH_BIO, 1856 request_ccb->ccb_h.path, NULL, 0, 1857 request_ccb); 1858 1859 if (status != CAM_REQ_CMP) { 1860 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 1861 "returned an error, can't continue probe\n"); 1862 request_ccb->ccb_h.status = status; 1863 xpt_done(request_ccb); 1864 } 1865 } 1866 } 1867 1868 static void 1869 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 1870 { 1871 xpt_release_path(done_ccb->ccb_h.path); 1872 free(done_ccb->ccb_h.path, M_CAMXPT); 1873 free(done_ccb, M_CAMXPT); 1874 } 1875 1876 static struct cam_ed * 1877 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 1878 { 1879 struct cam_path path; 1880 struct scsi_quirk_entry *quirk; 1881 struct cam_ed *device; 1882 struct cam_ed *cur_device; 1883 1884 device = xpt_alloc_device(bus, target, lun_id); 1885 if (device == NULL) 1886 return (NULL); 1887 1888 /* 1889 * Take the default quirk entry until we have inquiry 1890 * data and can determine a better quirk to use. 1891 */ 1892 quirk = &scsi_quirk_table[scsi_quirk_table_size - 1]; 1893 device->quirk = (void *)quirk; 1894 device->mintags = quirk->mintags; 1895 device->maxtags = quirk->maxtags; 1896 bzero(&device->inq_data, sizeof(device->inq_data)); 1897 device->inq_flags = 0; 1898 device->queue_flags = 0; 1899 device->serial_num = NULL; 1900 device->serial_num_len = 0; 1901 1902 /* 1903 * XXX should be limited by number of CCBs this bus can 1904 * do. 1905 */ 1906 bus->sim->max_ccbs += device->ccbq.devq_openings; 1907 /* Insertion sort into our target's device list */ 1908 cur_device = TAILQ_FIRST(&target->ed_entries); 1909 while (cur_device != NULL && cur_device->lun_id < lun_id) 1910 cur_device = TAILQ_NEXT(cur_device, links); 1911 if (cur_device != NULL) { 1912 TAILQ_INSERT_BEFORE(cur_device, device, links); 1913 } else { 1914 TAILQ_INSERT_TAIL(&target->ed_entries, device, links); 1915 } 1916 target->generation++; 1917 if (lun_id != CAM_LUN_WILDCARD) { 1918 xpt_compile_path(&path, 1919 NULL, 1920 bus->path_id, 1921 target->target_id, 1922 lun_id); 1923 scsi_devise_transport(&path); 1924 xpt_release_path(&path); 1925 } 1926 1927 return (device); 1928 } 1929 1930 static void 1931 scsi_devise_transport(struct cam_path *path) 1932 { 1933 struct ccb_pathinq cpi; 1934 struct ccb_trans_settings cts; 1935 struct scsi_inquiry_data *inq_buf; 1936 1937 /* Get transport information from the SIM */ 1938 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 1939 cpi.ccb_h.func_code = XPT_PATH_INQ; 1940 xpt_action((union ccb *)&cpi); 1941 1942 inq_buf = NULL; 1943 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 1944 inq_buf = &path->device->inq_data; 1945 path->device->protocol = PROTO_SCSI; 1946 path->device->protocol_version = 1947 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 1948 path->device->transport = cpi.transport; 1949 path->device->transport_version = cpi.transport_version; 1950 1951 /* 1952 * Any device not using SPI3 features should 1953 * be considered SPI2 or lower. 1954 */ 1955 if (inq_buf != NULL) { 1956 if (path->device->transport == XPORT_SPI 1957 && (inq_buf->spi3data & SID_SPI_MASK) == 0 1958 && path->device->transport_version > 2) 1959 path->device->transport_version = 2; 1960 } else { 1961 struct cam_ed* otherdev; 1962 1963 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 1964 otherdev != NULL; 1965 otherdev = TAILQ_NEXT(otherdev, links)) { 1966 if (otherdev != path->device) 1967 break; 1968 } 1969 1970 if (otherdev != NULL) { 1971 /* 1972 * Initially assume the same versioning as 1973 * prior luns for this target. 1974 */ 1975 path->device->protocol_version = 1976 otherdev->protocol_version; 1977 path->device->transport_version = 1978 otherdev->transport_version; 1979 } else { 1980 /* Until we know better, opt for safty */ 1981 path->device->protocol_version = 2; 1982 if (path->device->transport == XPORT_SPI) 1983 path->device->transport_version = 2; 1984 else 1985 path->device->transport_version = 0; 1986 } 1987 } 1988 1989 /* 1990 * XXX 1991 * For a device compliant with SPC-2 we should be able 1992 * to determine the transport version supported by 1993 * scrutinizing the version descriptors in the 1994 * inquiry buffer. 1995 */ 1996 1997 /* Tell the controller what we think */ 1998 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 1999 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2000 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2001 cts.transport = path->device->transport; 2002 cts.transport_version = path->device->transport_version; 2003 cts.protocol = path->device->protocol; 2004 cts.protocol_version = path->device->protocol_version; 2005 cts.proto_specific.valid = 0; 2006 cts.xport_specific.valid = 0; 2007 xpt_action((union ccb *)&cts); 2008 } 2009 2010 static void 2011 scsi_action(union ccb *start_ccb) 2012 { 2013 2014 switch (start_ccb->ccb_h.func_code) { 2015 case XPT_SET_TRAN_SETTINGS: 2016 { 2017 scsi_set_transfer_settings(&start_ccb->cts, 2018 start_ccb->ccb_h.path->device, 2019 /*async_update*/FALSE); 2020 break; 2021 } 2022 case XPT_SCAN_BUS: 2023 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2024 break; 2025 case XPT_SCAN_LUN: 2026 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2027 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2028 start_ccb); 2029 break; 2030 case XPT_GET_TRAN_SETTINGS: 2031 { 2032 struct cam_sim *sim; 2033 2034 sim = start_ccb->ccb_h.path->bus->sim; 2035 (*(sim->sim_action))(sim, start_ccb); 2036 break; 2037 } 2038 default: 2039 xpt_action_default(start_ccb); 2040 break; 2041 } 2042 } 2043 2044 static void 2045 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_ed *device, 2046 int async_update) 2047 { 2048 struct ccb_pathinq cpi; 2049 struct ccb_trans_settings cur_cts; 2050 struct ccb_trans_settings_scsi *scsi; 2051 struct ccb_trans_settings_scsi *cur_scsi; 2052 struct cam_sim *sim; 2053 struct scsi_inquiry_data *inq_data; 2054 2055 if (device == NULL) { 2056 cts->ccb_h.status = CAM_PATH_INVALID; 2057 xpt_done((union ccb *)cts); 2058 return; 2059 } 2060 2061 if (cts->protocol == PROTO_UNKNOWN 2062 || cts->protocol == PROTO_UNSPECIFIED) { 2063 cts->protocol = device->protocol; 2064 cts->protocol_version = device->protocol_version; 2065 } 2066 2067 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2068 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2069 cts->protocol_version = device->protocol_version; 2070 2071 if (cts->protocol != device->protocol) { 2072 xpt_print(cts->ccb_h.path, "Uninitialized Protocol %x:%x?\n", 2073 cts->protocol, device->protocol); 2074 cts->protocol = device->protocol; 2075 } 2076 2077 if (cts->protocol_version > device->protocol_version) { 2078 if (bootverbose) { 2079 xpt_print(cts->ccb_h.path, "Down reving Protocol " 2080 "Version from %d to %d?\n", cts->protocol_version, 2081 device->protocol_version); 2082 } 2083 cts->protocol_version = device->protocol_version; 2084 } 2085 2086 if (cts->transport == XPORT_UNKNOWN 2087 || cts->transport == XPORT_UNSPECIFIED) { 2088 cts->transport = device->transport; 2089 cts->transport_version = device->transport_version; 2090 } 2091 2092 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2093 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2094 cts->transport_version = device->transport_version; 2095 2096 if (cts->transport != device->transport) { 2097 xpt_print(cts->ccb_h.path, "Uninitialized Transport %x:%x?\n", 2098 cts->transport, device->transport); 2099 cts->transport = device->transport; 2100 } 2101 2102 if (cts->transport_version > device->transport_version) { 2103 if (bootverbose) { 2104 xpt_print(cts->ccb_h.path, "Down reving Transport " 2105 "Version from %d to %d?\n", cts->transport_version, 2106 device->transport_version); 2107 } 2108 cts->transport_version = device->transport_version; 2109 } 2110 2111 sim = cts->ccb_h.path->bus->sim; 2112 2113 /* 2114 * Nothing more of interest to do unless 2115 * this is a device connected via the 2116 * SCSI protocol. 2117 */ 2118 if (cts->protocol != PROTO_SCSI) { 2119 if (async_update == FALSE) 2120 (*(sim->sim_action))(sim, (union ccb *)cts); 2121 return; 2122 } 2123 2124 inq_data = &device->inq_data; 2125 scsi = &cts->proto_specific.scsi; 2126 xpt_setup_ccb(&cpi.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE); 2127 cpi.ccb_h.func_code = XPT_PATH_INQ; 2128 xpt_action((union ccb *)&cpi); 2129 2130 /* SCSI specific sanity checking */ 2131 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2132 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2133 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2134 || (device->mintags == 0)) { 2135 /* 2136 * Can't tag on hardware that doesn't support tags, 2137 * doesn't have it enabled, or has broken tag support. 2138 */ 2139 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2140 } 2141 2142 if (async_update == FALSE) { 2143 /* 2144 * Perform sanity checking against what the 2145 * controller and device can do. 2146 */ 2147 xpt_setup_ccb(&cur_cts.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE); 2148 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2149 cur_cts.type = cts->type; 2150 xpt_action((union ccb *)&cur_cts); 2151 if ((cur_cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2152 return; 2153 } 2154 cur_scsi = &cur_cts.proto_specific.scsi; 2155 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2156 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2157 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2158 } 2159 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2160 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2161 } 2162 2163 /* SPI specific sanity checking */ 2164 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2165 u_int spi3caps; 2166 struct ccb_trans_settings_spi *spi; 2167 struct ccb_trans_settings_spi *cur_spi; 2168 2169 spi = &cts->xport_specific.spi; 2170 2171 cur_spi = &cur_cts.xport_specific.spi; 2172 2173 /* Fill in any gaps in what the user gave us */ 2174 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2175 spi->sync_period = cur_spi->sync_period; 2176 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2177 spi->sync_period = 0; 2178 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2179 spi->sync_offset = cur_spi->sync_offset; 2180 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2181 spi->sync_offset = 0; 2182 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2183 spi->ppr_options = cur_spi->ppr_options; 2184 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2185 spi->ppr_options = 0; 2186 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2187 spi->bus_width = cur_spi->bus_width; 2188 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2189 spi->bus_width = 0; 2190 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2191 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2192 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2193 } 2194 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2195 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2196 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2197 && (inq_data->flags & SID_Sync) == 0 2198 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2199 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2200 /* Force async */ 2201 spi->sync_period = 0; 2202 spi->sync_offset = 0; 2203 } 2204 2205 switch (spi->bus_width) { 2206 case MSG_EXT_WDTR_BUS_32_BIT: 2207 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2208 || (inq_data->flags & SID_WBus32) != 0 2209 || cts->type == CTS_TYPE_USER_SETTINGS) 2210 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2211 break; 2212 /* Fall Through to 16-bit */ 2213 case MSG_EXT_WDTR_BUS_16_BIT: 2214 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2215 || (inq_data->flags & SID_WBus16) != 0 2216 || cts->type == CTS_TYPE_USER_SETTINGS) 2217 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2218 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2219 break; 2220 } 2221 /* Fall Through to 8-bit */ 2222 default: /* New bus width?? */ 2223 case MSG_EXT_WDTR_BUS_8_BIT: 2224 /* All targets can do this */ 2225 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2226 break; 2227 } 2228 2229 spi3caps = cpi.xport_specific.spi.ppr_options; 2230 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2231 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2232 spi3caps &= inq_data->spi3data; 2233 2234 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2235 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2236 2237 if ((spi3caps & SID_SPI_IUS) == 0) 2238 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2239 2240 if ((spi3caps & SID_SPI_QAS) == 0) 2241 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2242 2243 /* No SPI Transfer settings are allowed unless we are wide */ 2244 if (spi->bus_width == 0) 2245 spi->ppr_options = 0; 2246 2247 if ((spi->valid & CTS_SPI_VALID_DISC) 2248 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2249 /* 2250 * Can't tag queue without disconnection. 2251 */ 2252 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2253 scsi->valid |= CTS_SCSI_VALID_TQ; 2254 } 2255 2256 /* 2257 * If we are currently performing tagged transactions to 2258 * this device and want to change its negotiation parameters, 2259 * go non-tagged for a bit to give the controller a chance to 2260 * negotiate unhampered by tag messages. 2261 */ 2262 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2263 && (device->inq_flags & SID_CmdQue) != 0 2264 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2265 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2266 CTS_SPI_VALID_SYNC_OFFSET| 2267 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2268 scsi_toggle_tags(cts->ccb_h.path); 2269 } 2270 2271 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2272 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2273 int device_tagenb; 2274 2275 /* 2276 * If we are transitioning from tags to no-tags or 2277 * vice-versa, we need to carefully freeze and restart 2278 * the queue so that we don't overlap tagged and non-tagged 2279 * commands. We also temporarily stop tags if there is 2280 * a change in transfer negotiation settings to allow 2281 * "tag-less" negotiation. 2282 */ 2283 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2284 || (device->inq_flags & SID_CmdQue) != 0) 2285 device_tagenb = TRUE; 2286 else 2287 device_tagenb = FALSE; 2288 2289 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2290 && device_tagenb == FALSE) 2291 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2292 && device_tagenb == TRUE)) { 2293 2294 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2295 /* 2296 * Delay change to use tags until after a 2297 * few commands have gone to this device so 2298 * the controller has time to perform transfer 2299 * negotiations without tagged messages getting 2300 * in the way. 2301 */ 2302 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2303 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2304 } else { 2305 xpt_stop_tags(cts->ccb_h.path); 2306 } 2307 } 2308 } 2309 if (async_update == FALSE) 2310 (*(sim->sim_action))(sim, (union ccb *)cts); 2311 } 2312 2313 static void 2314 scsi_toggle_tags(struct cam_path *path) 2315 { 2316 struct cam_ed *dev; 2317 2318 /* 2319 * Give controllers a chance to renegotiate 2320 * before starting tag operations. We 2321 * "toggle" tagged queuing off then on 2322 * which causes the tag enable command delay 2323 * counter to come into effect. 2324 */ 2325 dev = path->device; 2326 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2327 || ((dev->inq_flags & SID_CmdQue) != 0 2328 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2329 struct ccb_trans_settings cts; 2330 2331 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2332 cts.protocol = PROTO_SCSI; 2333 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2334 cts.transport = XPORT_UNSPECIFIED; 2335 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2336 cts.proto_specific.scsi.flags = 0; 2337 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2338 scsi_set_transfer_settings(&cts, path->device, 2339 /*async_update*/TRUE); 2340 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2341 scsi_set_transfer_settings(&cts, path->device, 2342 /*async_update*/TRUE); 2343 } 2344 } 2345 2346 /* 2347 * Handle any per-device event notifications that require action by the XPT. 2348 */ 2349 static void 2350 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2351 struct cam_ed *device, void *async_arg) 2352 { 2353 cam_status status; 2354 struct cam_path newpath; 2355 2356 /* 2357 * We only need to handle events for real devices. 2358 */ 2359 if (target->target_id == CAM_TARGET_WILDCARD 2360 || device->lun_id == CAM_LUN_WILDCARD) 2361 return; 2362 2363 /* 2364 * We need our own path with wildcards expanded to 2365 * handle certain types of events. 2366 */ 2367 if ((async_code == AC_SENT_BDR) 2368 || (async_code == AC_BUS_RESET) 2369 || (async_code == AC_INQ_CHANGED)) 2370 status = xpt_compile_path(&newpath, NULL, 2371 bus->path_id, 2372 target->target_id, 2373 device->lun_id); 2374 else 2375 status = CAM_REQ_CMP_ERR; 2376 2377 if (status == CAM_REQ_CMP) { 2378 2379 /* 2380 * Allow transfer negotiation to occur in a 2381 * tag free environment and after settle delay. 2382 */ 2383 if (async_code == AC_SENT_BDR 2384 || async_code == AC_BUS_RESET) { 2385 cam_freeze_devq(&newpath); 2386 cam_release_devq(&newpath, 2387 RELSIM_RELEASE_AFTER_TIMEOUT, 2388 /*reduction*/0, 2389 /*timeout*/scsi_delay, 2390 /*getcount_only*/0); 2391 scsi_toggle_tags(&newpath); 2392 } 2393 2394 if (async_code == AC_INQ_CHANGED) { 2395 /* 2396 * We've sent a start unit command, or 2397 * something similar to a device that 2398 * may have caused its inquiry data to 2399 * change. So we re-scan the device to 2400 * refresh the inquiry data for it. 2401 */ 2402 scsi_scan_lun(newpath.periph, &newpath, 2403 CAM_EXPECT_INQ_CHANGE, NULL); 2404 } 2405 xpt_release_path(&newpath); 2406 } else if (async_code == AC_LOST_DEVICE && 2407 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2408 device->flags |= CAM_DEV_UNCONFIGURED; 2409 xpt_release_device(device); 2410 } else if (async_code == AC_TRANSFER_NEG) { 2411 struct ccb_trans_settings *settings; 2412 2413 settings = (struct ccb_trans_settings *)async_arg; 2414 scsi_set_transfer_settings(settings, device, 2415 /*async_update*/TRUE); 2416 } 2417 } 2418 2419 static void 2420 scsi_announce_periph(struct cam_periph *periph) 2421 { 2422 struct ccb_pathinq cpi; 2423 struct ccb_trans_settings cts; 2424 struct cam_path *path = periph->path; 2425 u_int speed; 2426 u_int freq; 2427 u_int mb; 2428 2429 mtx_assert(periph->sim->mtx, MA_OWNED); 2430 2431 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 2432 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2433 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2434 xpt_action((union ccb*)&cts); 2435 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2436 return; 2437 /* Ask the SIM for its base transfer speed */ 2438 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 2439 cpi.ccb_h.func_code = XPT_PATH_INQ; 2440 xpt_action((union ccb *)&cpi); 2441 /* Report connection speed */ 2442 speed = cpi.base_transfer_speed; 2443 freq = 0; 2444 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 2445 struct ccb_trans_settings_spi *spi = 2446 &cts.xport_specific.spi; 2447 2448 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 2449 && spi->sync_offset != 0) { 2450 freq = scsi_calc_syncsrate(spi->sync_period); 2451 speed = freq; 2452 } 2453 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 2454 speed *= (0x01 << spi->bus_width); 2455 } 2456 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 2457 struct ccb_trans_settings_fc *fc = 2458 &cts.xport_specific.fc; 2459 2460 if (fc->valid & CTS_FC_VALID_SPEED) 2461 speed = fc->bitrate; 2462 } 2463 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 2464 struct ccb_trans_settings_sas *sas = 2465 &cts.xport_specific.sas; 2466 2467 if (sas->valid & CTS_SAS_VALID_SPEED) 2468 speed = sas->bitrate; 2469 } 2470 mb = speed / 1000; 2471 if (mb > 0) 2472 printf("%s%d: %d.%03dMB/s transfers", 2473 periph->periph_name, periph->unit_number, 2474 mb, speed % 1000); 2475 else 2476 printf("%s%d: %dKB/s transfers", periph->periph_name, 2477 periph->unit_number, speed); 2478 /* Report additional information about SPI connections */ 2479 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 2480 struct ccb_trans_settings_spi *spi; 2481 2482 spi = &cts.xport_specific.spi; 2483 if (freq != 0) { 2484 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 2485 freq % 1000, 2486 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 2487 ? " DT" : "", 2488 spi->sync_offset); 2489 } 2490 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 2491 && spi->bus_width > 0) { 2492 if (freq != 0) { 2493 printf(", "); 2494 } else { 2495 printf(" ("); 2496 } 2497 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 2498 } else if (freq != 0) { 2499 printf(")"); 2500 } 2501 } 2502 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 2503 struct ccb_trans_settings_fc *fc; 2504 2505 fc = &cts.xport_specific.fc; 2506 if (fc->valid & CTS_FC_VALID_WWNN) 2507 printf(" WWNN 0x%llx", (long long) fc->wwnn); 2508 if (fc->valid & CTS_FC_VALID_WWPN) 2509 printf(" WWPN 0x%llx", (long long) fc->wwpn); 2510 if (fc->valid & CTS_FC_VALID_PORT) 2511 printf(" PortID 0x%x", fc->port); 2512 } 2513 printf("\n"); 2514 } 2515 2516