scsi_xpt.c revision 260626
13229Spst/*- 269200Skris * Implementation of the SCSI Transport 33229Spst * 497417Salfred * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 597417Salfred * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 697417Salfred * 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 260626 2014-01-14 12:01:36Z mav $"); 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_SERIAL_NUM, 146 PROBE_TUR_FOR_NEGOTIATION, 147 PROBE_INQUIRY_BASIC_DV1, 148 PROBE_INQUIRY_BASIC_DV2, 149 PROBE_DV_EXIT, 150 PROBE_DONE, 151 PROBE_INVALID 152} probe_action; 153 154static char *probe_action_text[] = { 155 "PROBE_TUR", 156 "PROBE_INQUIRY", 157 "PROBE_FULL_INQUIRY", 158 "PROBE_REPORT_LUNS", 159 "PROBE_MODE_SENSE", 160 "PROBE_SUPPORTED_VPD_LIST", 161 "PROBE_DEVICE_ID", 162 "PROBE_SERIAL_NUM", 163 "PROBE_TUR_FOR_NEGOTIATION", 164 "PROBE_INQUIRY_BASIC_DV1", 165 "PROBE_INQUIRY_BASIC_DV2", 166 "PROBE_DV_EXIT", 167 "PROBE_DONE", 168 "PROBE_INVALID" 169}; 170 171#define PROBE_SET_ACTION(softc, newaction) \ 172do { \ 173 char **text; \ 174 text = probe_action_text; \ 175 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 176 ("Probe %s to %s\n", text[(softc)->action], \ 177 text[(newaction)])); \ 178 (softc)->action = (newaction); \ 179} while(0) 180 181typedef enum { 182 PROBE_INQUIRY_CKSUM = 0x01, 183 PROBE_SERIAL_CKSUM = 0x02, 184 PROBE_NO_ANNOUNCE = 0x04, 185 PROBE_EXTLUN = 0x08 186} probe_flags; 187 188typedef struct { 189 TAILQ_HEAD(, ccb_hdr) request_ccbs; 190 probe_action action; 191 union ccb saved_ccb; 192 probe_flags flags; 193 MD5_CTX context; 194 u_int8_t digest[16]; 195 struct cam_periph *periph; 196} probe_softc; 197 198static const char quantum[] = "QUANTUM"; 199static const char sony[] = "SONY"; 200static const char west_digital[] = "WDIGTL"; 201static const char samsung[] = "SAMSUNG"; 202static const char seagate[] = "SEAGATE"; 203static const char microp[] = "MICROP"; 204 205static struct scsi_quirk_entry scsi_quirk_table[] = 206{ 207 { 208 /* Reports QUEUE FULL for temporary resource shortages */ 209 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 210 /*quirks*/0, /*mintags*/24, /*maxtags*/32 211 }, 212 { 213 /* Reports QUEUE FULL for temporary resource shortages */ 214 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 215 /*quirks*/0, /*mintags*/24, /*maxtags*/32 216 }, 217 { 218 /* Reports QUEUE FULL for temporary resource shortages */ 219 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 220 /*quirks*/0, /*mintags*/24, /*maxtags*/32 221 }, 222 { 223 /* Broken tagged queuing drive */ 224 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 225 /*quirks*/0, /*mintags*/0, /*maxtags*/0 226 }, 227 { 228 /* Broken tagged queuing drive */ 229 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 230 /*quirks*/0, /*mintags*/0, /*maxtags*/0 231 }, 232 { 233 /* Broken tagged queuing drive */ 234 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 235 /*quirks*/0, /*mintags*/0, /*maxtags*/0 236 }, 237 { 238 /* 239 * Unfortunately, the Quantum Atlas III has the same 240 * problem as the Atlas II drives above. 241 * Reported by: "Johan Granlund" <johan@granlund.nu> 242 * 243 * For future reference, the drive with the problem was: 244 * QUANTUM QM39100TD-SW N1B0 245 * 246 * It's possible that Quantum will fix the problem in later 247 * firmware revisions. If that happens, the quirk entry 248 * will need to be made specific to the firmware revisions 249 * with the problem. 250 * 251 */ 252 /* Reports QUEUE FULL for temporary resource shortages */ 253 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 254 /*quirks*/0, /*mintags*/24, /*maxtags*/32 255 }, 256 { 257 /* 258 * 18 Gig Atlas III, same problem as the 9G version. 259 * Reported by: Andre Albsmeier 260 * <andre.albsmeier@mchp.siemens.de> 261 * 262 * For future reference, the drive with the problem was: 263 * QUANTUM QM318000TD-S N491 264 */ 265 /* Reports QUEUE FULL for temporary resource shortages */ 266 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 267 /*quirks*/0, /*mintags*/24, /*maxtags*/32 268 }, 269 { 270 /* 271 * Broken tagged queuing drive 272 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 273 * and: Martin Renters <martin@tdc.on.ca> 274 */ 275 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 276 /*quirks*/0, /*mintags*/0, /*maxtags*/0 277 }, 278 /* 279 * The Seagate Medalist Pro drives have very poor write 280 * performance with anything more than 2 tags. 281 * 282 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 283 * Drive: <SEAGATE ST36530N 1444> 284 * 285 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 286 * Drive: <SEAGATE ST34520W 1281> 287 * 288 * No one has actually reported that the 9G version 289 * (ST39140*) of the Medalist Pro has the same problem, but 290 * we're assuming that it does because the 4G and 6.5G 291 * versions of the drive are broken. 292 */ 293 { 294 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 295 /*quirks*/0, /*mintags*/2, /*maxtags*/2 296 }, 297 { 298 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 299 /*quirks*/0, /*mintags*/2, /*maxtags*/2 300 }, 301 { 302 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 303 /*quirks*/0, /*mintags*/2, /*maxtags*/2 304 }, 305 { 306 /* 307 * Experiences command timeouts under load with a 308 * tag count higher than 55. 309 */ 310 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 311 /*quirks*/0, /*mintags*/2, /*maxtags*/55 312 }, 313 { 314 /* 315 * Slow when tagged queueing is enabled. Write performance 316 * steadily drops off with more and more concurrent 317 * transactions. Best sequential write performance with 318 * tagged queueing turned off and write caching turned on. 319 * 320 * PR: kern/10398 321 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 322 * Drive: DCAS-34330 w/ "S65A" firmware. 323 * 324 * The drive with the problem had the "S65A" firmware 325 * revision, and has also been reported (by Stephen J. 326 * Roznowski <sjr@home.net>) for a drive with the "S61A" 327 * firmware revision. 328 * 329 * Although no one has reported problems with the 2 gig 330 * version of the DCAS drive, the assumption is that it 331 * has the same problems as the 4 gig version. Therefore 332 * this quirk entries disables tagged queueing for all 333 * DCAS drives. 334 */ 335 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 336 /*quirks*/0, /*mintags*/0, /*maxtags*/0 337 }, 338 { 339 /* Broken tagged queuing drive */ 340 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 341 /*quirks*/0, /*mintags*/0, /*maxtags*/0 342 }, 343 { 344 /* Broken tagged queuing drive */ 345 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 346 /*quirks*/0, /*mintags*/0, /*maxtags*/0 347 }, 348 { 349 /* This does not support other than LUN 0 */ 350 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 351 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 352 }, 353 { 354 /* 355 * Broken tagged queuing drive. 356 * Submitted by: 357 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 358 * in PR kern/9535 359 */ 360 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 361 /*quirks*/0, /*mintags*/0, /*maxtags*/0 362 }, 363 { 364 /* 365 * Slow when tagged queueing is enabled. (1.5MB/sec versus 366 * 8MB/sec.) 367 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 368 * Best performance with these drives is achieved with 369 * tagged queueing turned off, and write caching turned on. 370 */ 371 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 372 /*quirks*/0, /*mintags*/0, /*maxtags*/0 373 }, 374 { 375 /* 376 * Slow when tagged queueing is enabled. (1.5MB/sec versus 377 * 8MB/sec.) 378 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 379 * Best performance with these drives is achieved with 380 * tagged queueing turned off, and write caching turned on. 381 */ 382 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 383 /*quirks*/0, /*mintags*/0, /*maxtags*/0 384 }, 385 { 386 /* 387 * Doesn't handle queue full condition correctly, 388 * so we need to limit maxtags to what the device 389 * can handle instead of determining this automatically. 390 */ 391 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 392 /*quirks*/0, /*mintags*/2, /*maxtags*/32 393 }, 394 { 395 /* Really only one LUN */ 396 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 397 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 398 }, 399 { 400 /* I can't believe we need a quirk for DPT volumes. */ 401 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 402 CAM_QUIRK_NOLUNS, 403 /*mintags*/0, /*maxtags*/255 404 }, 405 { 406 /* 407 * Many Sony CDROM drives don't like multi-LUN probing. 408 */ 409 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 410 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 411 }, 412 { 413 /* 414 * This drive doesn't like multiple LUN probing. 415 * Submitted by: Parag Patel <parag@cgt.com> 416 */ 417 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 418 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 419 }, 420 { 421 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 422 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 423 }, 424 { 425 /* 426 * The 8200 doesn't like multi-lun probing, and probably 427 * don't like serial number requests either. 428 */ 429 { 430 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 431 "EXB-8200*", "*" 432 }, 433 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 434 }, 435 { 436 /* 437 * Let's try the same as above, but for a drive that says 438 * it's an IPL-6860 but is actually an EXB 8200. 439 */ 440 { 441 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 442 "IPL-6860*", "*" 443 }, 444 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 445 }, 446 { 447 /* 448 * These Hitachi drives don't like multi-lun probing. 449 * The PR submitter has a DK319H, but says that the Linux 450 * kernel has a similar work-around for the DK312 and DK314, 451 * so all DK31* drives are quirked here. 452 * PR: misc/18793 453 * Submitted by: Paul Haddad <paul@pth.com> 454 */ 455 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 456 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 457 }, 458 { 459 /* 460 * The Hitachi CJ series with J8A8 firmware apparantly has 461 * problems with tagged commands. 462 * PR: 23536 463 * Reported by: amagai@nue.org 464 */ 465 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 466 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 467 }, 468 { 469 /* 470 * These are the large storage arrays. 471 * Submitted by: William Carrel <william.carrel@infospace.com> 472 */ 473 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 474 CAM_QUIRK_HILUNS, 2, 1024 475 }, 476 { 477 /* 478 * This old revision of the TDC3600 is also SCSI-1, and 479 * hangs upon serial number probing. 480 */ 481 { 482 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 483 " TDC 3600", "U07:" 484 }, 485 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 486 }, 487 { 488 /* 489 * Would repond to all LUNs if asked for. 490 */ 491 { 492 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 493 "CP150", "*" 494 }, 495 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 496 }, 497 { 498 /* 499 * Would repond to all LUNs if asked for. 500 */ 501 { 502 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 503 "96X2*", "*" 504 }, 505 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 506 }, 507 { 508 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 509 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 510 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 511 }, 512 { 513 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 514 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 515 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 516 }, 517 { 518 /* TeraSolutions special settings for TRC-22 RAID */ 519 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 520 /*quirks*/0, /*mintags*/55, /*maxtags*/255 521 }, 522 { 523 /* Veritas Storage Appliance */ 524 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 525 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 526 }, 527 { 528 /* 529 * Would respond to all LUNs. Device type and removable 530 * flag are jumper-selectable. 531 */ 532 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 533 "Tahiti 1", "*" 534 }, 535 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 536 }, 537 { 538 /* EasyRAID E5A aka. areca ARC-6010 */ 539 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 540 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 541 }, 542 { 543 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 544 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 545 }, 546 { 547 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 548 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 549 }, 550 { 551 /* Default tagged queuing parameters for all devices */ 552 { 553 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 554 /*vendor*/"*", /*product*/"*", /*revision*/"*" 555 }, 556 /*quirks*/0, /*mintags*/2, /*maxtags*/255 557 }, 558}; 559 560static const int scsi_quirk_table_size = 561 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table); 562 563static cam_status proberegister(struct cam_periph *periph, 564 void *arg); 565static void probeschedule(struct cam_periph *probe_periph); 566static void probestart(struct cam_periph *periph, union ccb *start_ccb); 567static void proberequestdefaultnegotiation(struct cam_periph *periph); 568static int proberequestbackoff(struct cam_periph *periph, 569 struct cam_ed *device); 570static void probedone(struct cam_periph *periph, union ccb *done_ccb); 571static void probe_purge_old(struct cam_path *path, 572 struct scsi_report_luns_data *new, 573 probe_flags flags); 574static void probecleanup(struct cam_periph *periph); 575static void scsi_find_quirk(struct cam_ed *device); 576static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 577static void scsi_scan_lun(struct cam_periph *periph, 578 struct cam_path *path, cam_flags flags, 579 union ccb *ccb); 580static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 581static struct cam_ed * 582 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 583 lun_id_t lun_id); 584static void scsi_devise_transport(struct cam_path *path); 585static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 586 struct cam_path *path, 587 int async_update); 588static void scsi_toggle_tags(struct cam_path *path); 589static void scsi_dev_async(u_int32_t async_code, 590 struct cam_eb *bus, 591 struct cam_et *target, 592 struct cam_ed *device, 593 void *async_arg); 594static void scsi_action(union ccb *start_ccb); 595static void scsi_announce_periph(struct cam_periph *periph); 596 597static struct xpt_xport scsi_xport = { 598 .alloc_device = scsi_alloc_device, 599 .action = scsi_action, 600 .async = scsi_dev_async, 601 .announce = scsi_announce_periph, 602}; 603 604struct xpt_xport * 605scsi_get_xport(void) 606{ 607 return (&scsi_xport); 608} 609 610static void 611probe_periph_init() 612{ 613} 614 615static cam_status 616proberegister(struct cam_periph *periph, void *arg) 617{ 618 union ccb *request_ccb; /* CCB representing the probe request */ 619 cam_status status; 620 probe_softc *softc; 621 622 request_ccb = (union ccb *)arg; 623 if (request_ccb == NULL) { 624 printf("proberegister: no probe CCB, " 625 "can't register device\n"); 626 return(CAM_REQ_CMP_ERR); 627 } 628 629 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 630 631 if (softc == NULL) { 632 printf("proberegister: Unable to probe new device. " 633 "Unable to allocate softc\n"); 634 return(CAM_REQ_CMP_ERR); 635 } 636 TAILQ_INIT(&softc->request_ccbs); 637 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 638 periph_links.tqe); 639 softc->flags = 0; 640 periph->softc = softc; 641 softc->periph = periph; 642 softc->action = PROBE_INVALID; 643 status = cam_periph_acquire(periph); 644 if (status != CAM_REQ_CMP) { 645 return (status); 646 } 647 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 648 scsi_devise_transport(periph->path); 649 650 /* 651 * Ensure we've waited at least a bus settle 652 * delay before attempting to probe the device. 653 * For HBAs that don't do bus resets, this won't make a difference. 654 */ 655 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 656 scsi_delay); 657 probeschedule(periph); 658 return(CAM_REQ_CMP); 659} 660 661static void 662probeschedule(struct cam_periph *periph) 663{ 664 struct ccb_pathinq cpi; 665 union ccb *ccb; 666 probe_softc *softc; 667 668 softc = (probe_softc *)periph->softc; 669 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 670 671 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 672 cpi.ccb_h.func_code = XPT_PATH_INQ; 673 xpt_action((union ccb *)&cpi); 674 675 /* 676 * If a device has gone away and another device, or the same one, 677 * is back in the same place, it should have a unit attention 678 * condition pending. It will not report the unit attention in 679 * response to an inquiry, which may leave invalid transfer 680 * negotiations in effect. The TUR will reveal the unit attention 681 * condition. Only send the TUR for lun 0, since some devices 682 * will get confused by commands other than inquiry to non-existent 683 * luns. If you think a device has gone away start your scan from 684 * lun 0. This will insure that any bogus transfer settings are 685 * invalidated. 686 * 687 * If we haven't seen the device before and the controller supports 688 * some kind of transfer negotiation, negotiate with the first 689 * sent command if no bus reset was performed at startup. This 690 * ensures that the device is not confused by transfer negotiation 691 * settings left over by loader or BIOS action. 692 */ 693 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 694 && (ccb->ccb_h.target_lun == 0)) { 695 PROBE_SET_ACTION(softc, PROBE_TUR); 696 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 697 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 698 proberequestdefaultnegotiation(periph); 699 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 700 } else { 701 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 702 } 703 704 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 705 softc->flags |= PROBE_NO_ANNOUNCE; 706 else 707 softc->flags &= ~PROBE_NO_ANNOUNCE; 708 709 if (cpi.hba_misc & PIM_EXTLUNS) 710 softc->flags |= PROBE_EXTLUN; 711 else 712 softc->flags &= ~PROBE_EXTLUN; 713 714 xpt_schedule(periph, CAM_PRIORITY_XPT); 715} 716 717static void 718probestart(struct cam_periph *periph, union ccb *start_ccb) 719{ 720 /* Probe the device that our peripheral driver points to */ 721 struct ccb_scsiio *csio; 722 probe_softc *softc; 723 724 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 725 726 softc = (probe_softc *)periph->softc; 727 csio = &start_ccb->csio; 728again: 729 730 switch (softc->action) { 731 case PROBE_TUR: 732 case PROBE_TUR_FOR_NEGOTIATION: 733 case PROBE_DV_EXIT: 734 { 735 scsi_test_unit_ready(csio, 736 /*retries*/4, 737 probedone, 738 MSG_SIMPLE_Q_TAG, 739 SSD_FULL_SIZE, 740 /*timeout*/60000); 741 break; 742 } 743 case PROBE_INQUIRY: 744 case PROBE_FULL_INQUIRY: 745 case PROBE_INQUIRY_BASIC_DV1: 746 case PROBE_INQUIRY_BASIC_DV2: 747 { 748 u_int inquiry_len; 749 struct scsi_inquiry_data *inq_buf; 750 751 inq_buf = &periph->path->device->inq_data; 752 753 /* 754 * If the device is currently configured, we calculate an 755 * MD5 checksum of the inquiry data, and if the serial number 756 * length is greater than 0, add the serial number data 757 * into the checksum as well. Once the inquiry and the 758 * serial number check finish, we attempt to figure out 759 * whether we still have the same device. 760 */ 761 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) { 762 763 MD5Init(&softc->context); 764 MD5Update(&softc->context, (unsigned char *)inq_buf, 765 sizeof(struct scsi_inquiry_data)); 766 softc->flags |= PROBE_INQUIRY_CKSUM; 767 if (periph->path->device->serial_num_len > 0) { 768 MD5Update(&softc->context, 769 periph->path->device->serial_num, 770 periph->path->device->serial_num_len); 771 softc->flags |= PROBE_SERIAL_CKSUM; 772 } 773 MD5Final(softc->digest, &softc->context); 774 } 775 776 if (softc->action == PROBE_INQUIRY) 777 inquiry_len = SHORT_INQUIRY_LENGTH; 778 else 779 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 780 781 /* 782 * Some parallel SCSI devices fail to send an 783 * ignore wide residue message when dealing with 784 * odd length inquiry requests. Round up to be 785 * safe. 786 */ 787 inquiry_len = roundup2(inquiry_len, 2); 788 789 if (softc->action == PROBE_INQUIRY_BASIC_DV1 790 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 791 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 792 } 793 if (inq_buf == NULL) { 794 xpt_print(periph->path, "malloc failure- skipping Basic" 795 "Domain Validation\n"); 796 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 797 scsi_test_unit_ready(csio, 798 /*retries*/4, 799 probedone, 800 MSG_SIMPLE_Q_TAG, 801 SSD_FULL_SIZE, 802 /*timeout*/60000); 803 break; 804 } 805 scsi_inquiry(csio, 806 /*retries*/4, 807 probedone, 808 MSG_SIMPLE_Q_TAG, 809 (u_int8_t *)inq_buf, 810 inquiry_len, 811 /*evpd*/FALSE, 812 /*page_code*/0, 813 SSD_MIN_SIZE, 814 /*timeout*/60 * 1000); 815 break; 816 } 817 case PROBE_REPORT_LUNS: 818 { 819 void *rp; 820 821 rp = malloc(periph->path->target->rpl_size, 822 M_CAMXPT, M_NOWAIT | M_ZERO); 823 if (rp == NULL) { 824 struct scsi_inquiry_data *inq_buf; 825 inq_buf = &periph->path->device->inq_data; 826 xpt_print(periph->path, 827 "Unable to alloc report luns storage\n"); 828 if (INQ_DATA_TQ_ENABLED(inq_buf)) 829 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 830 else 831 PROBE_SET_ACTION(softc, 832 PROBE_SUPPORTED_VPD_LIST); 833 goto again; 834 } 835 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 836 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 837 SSD_FULL_SIZE, 60000); break; 838 break; 839 } 840 case PROBE_MODE_SENSE: 841 { 842 void *mode_buf; 843 int mode_buf_len; 844 845 mode_buf_len = sizeof(struct scsi_mode_header_6) 846 + sizeof(struct scsi_mode_blk_desc) 847 + sizeof(struct scsi_control_page); 848 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 849 if (mode_buf != NULL) { 850 scsi_mode_sense(csio, 851 /*retries*/4, 852 probedone, 853 MSG_SIMPLE_Q_TAG, 854 /*dbd*/FALSE, 855 SMS_PAGE_CTRL_CURRENT, 856 SMS_CONTROL_MODE_PAGE, 857 mode_buf, 858 mode_buf_len, 859 SSD_FULL_SIZE, 860 /*timeout*/60000); 861 break; 862 } 863 xpt_print(periph->path, "Unable to mode sense control page - " 864 "malloc failure\n"); 865 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 866 } 867 /* FALLTHROUGH */ 868 case PROBE_SUPPORTED_VPD_LIST: 869 { 870 struct scsi_vpd_supported_page_list *vpd_list; 871 struct cam_ed *device; 872 873 vpd_list = NULL; 874 device = periph->path->device; 875 876 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 877 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 878 M_NOWAIT | M_ZERO); 879 880 if (vpd_list != NULL) { 881 scsi_inquiry(csio, 882 /*retries*/4, 883 probedone, 884 MSG_SIMPLE_Q_TAG, 885 (u_int8_t *)vpd_list, 886 sizeof(*vpd_list), 887 /*evpd*/TRUE, 888 SVPD_SUPPORTED_PAGE_LIST, 889 SSD_MIN_SIZE, 890 /*timeout*/60 * 1000); 891 break; 892 } 893done: 894 /* 895 * We'll have to do without, let our probedone 896 * routine finish up for us. 897 */ 898 start_ccb->csio.data_ptr = NULL; 899 cam_freeze_devq(periph->path); 900 cam_periph_doacquire(periph); 901 probedone(periph, start_ccb); 902 return; 903 } 904 case PROBE_DEVICE_ID: 905 { 906 struct scsi_vpd_device_id *devid; 907 908 devid = NULL; 909 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 910 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 911 M_NOWAIT | M_ZERO); 912 913 if (devid != NULL) { 914 scsi_inquiry(csio, 915 /*retries*/4, 916 probedone, 917 MSG_SIMPLE_Q_TAG, 918 (uint8_t *)devid, 919 SVPD_DEVICE_ID_MAX_SIZE, 920 /*evpd*/TRUE, 921 SVPD_DEVICE_ID, 922 SSD_MIN_SIZE, 923 /*timeout*/60 * 1000); 924 break; 925 } 926 goto done; 927 } 928 case PROBE_SERIAL_NUM: 929 { 930 struct scsi_vpd_unit_serial_number *serial_buf; 931 struct cam_ed* device; 932 933 serial_buf = NULL; 934 device = periph->path->device; 935 if (device->serial_num != NULL) { 936 free(device->serial_num, M_CAMXPT); 937 device->serial_num = NULL; 938 device->serial_num_len = 0; 939 } 940 941 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 942 serial_buf = (struct scsi_vpd_unit_serial_number *) 943 malloc(sizeof(*serial_buf), M_CAMXPT, 944 M_NOWAIT|M_ZERO); 945 946 if (serial_buf != NULL) { 947 scsi_inquiry(csio, 948 /*retries*/4, 949 probedone, 950 MSG_SIMPLE_Q_TAG, 951 (u_int8_t *)serial_buf, 952 sizeof(*serial_buf), 953 /*evpd*/TRUE, 954 SVPD_UNIT_SERIAL_NUMBER, 955 SSD_MIN_SIZE, 956 /*timeout*/60 * 1000); 957 break; 958 } 959 goto done; 960 } 961 default: 962 panic("probestart: invalid action state 0x%x\n", softc->action); 963 } 964 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 965 cam_periph_doacquire(periph); 966 xpt_action(start_ccb); 967} 968 969static void 970proberequestdefaultnegotiation(struct cam_periph *periph) 971{ 972 struct ccb_trans_settings cts; 973 974 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 975 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 976 cts.type = CTS_TYPE_USER_SETTINGS; 977 xpt_action((union ccb *)&cts); 978 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 979 return; 980 } 981 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 982 cts.type = CTS_TYPE_CURRENT_SETTINGS; 983 xpt_action((union ccb *)&cts); 984} 985 986/* 987 * Backoff Negotiation Code- only pertinent for SPI devices. 988 */ 989static int 990proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 991{ 992 struct ccb_trans_settings cts; 993 struct ccb_trans_settings_spi *spi; 994 995 memset(&cts, 0, sizeof (cts)); 996 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 997 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 998 cts.type = CTS_TYPE_CURRENT_SETTINGS; 999 xpt_action((union ccb *)&cts); 1000 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1001 if (bootverbose) { 1002 xpt_print(periph->path, 1003 "failed to get current device settings\n"); 1004 } 1005 return (0); 1006 } 1007 if (cts.transport != XPORT_SPI) { 1008 if (bootverbose) { 1009 xpt_print(periph->path, "not SPI transport\n"); 1010 } 1011 return (0); 1012 } 1013 spi = &cts.xport_specific.spi; 1014 1015 /* 1016 * We cannot renegotiate sync rate if we don't have one. 1017 */ 1018 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1019 if (bootverbose) { 1020 xpt_print(periph->path, "no sync rate known\n"); 1021 } 1022 return (0); 1023 } 1024 1025 /* 1026 * We'll assert that we don't have to touch PPR options- the 1027 * SIM will see what we do with period and offset and adjust 1028 * the PPR options as appropriate. 1029 */ 1030 1031 /* 1032 * A sync rate with unknown or zero offset is nonsensical. 1033 * A sync period of zero means Async. 1034 */ 1035 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1036 || spi->sync_offset == 0 || spi->sync_period == 0) { 1037 if (bootverbose) { 1038 xpt_print(periph->path, "no sync rate available\n"); 1039 } 1040 return (0); 1041 } 1042 1043 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1044 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1045 ("hit async: giving up on DV\n")); 1046 return (0); 1047 } 1048 1049 1050 /* 1051 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1052 * We don't try to remember 'last' settings to see if the SIM actually 1053 * gets into the speed we want to set. We check on the SIM telling 1054 * us that a requested speed is bad, but otherwise don't try and 1055 * check the speed due to the asynchronous and handshake nature 1056 * of speed setting. 1057 */ 1058 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1059 for (;;) { 1060 spi->sync_period++; 1061 if (spi->sync_period >= 0xf) { 1062 spi->sync_period = 0; 1063 spi->sync_offset = 0; 1064 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1065 ("setting to async for DV\n")); 1066 /* 1067 * Once we hit async, we don't want to try 1068 * any more settings. 1069 */ 1070 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1071 } else if (bootverbose) { 1072 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1073 ("DV: period 0x%x\n", spi->sync_period)); 1074 printf("setting period to 0x%x\n", spi->sync_period); 1075 } 1076 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1077 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1078 xpt_action((union ccb *)&cts); 1079 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1080 break; 1081 } 1082 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1083 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1084 if (spi->sync_period == 0) { 1085 return (0); 1086 } 1087 } 1088 return (1); 1089} 1090 1091#define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1092 1093static void 1094probedone(struct cam_periph *periph, union ccb *done_ccb) 1095{ 1096 probe_softc *softc; 1097 struct cam_path *path; 1098 u_int32_t priority; 1099 1100 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1101 1102 softc = (probe_softc *)periph->softc; 1103 path = done_ccb->ccb_h.path; 1104 priority = done_ccb->ccb_h.pinfo.priority; 1105 1106 switch (softc->action) { 1107 case PROBE_TUR: 1108 { 1109 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1110 1111 if (cam_periph_error(done_ccb, 0, 1112 SF_NO_PRINT, NULL) == ERESTART) { 1113outr: 1114 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1115 cam_release_devq(path, 0, 0, 0, FALSE); 1116 return; 1117 } 1118 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1119 /* Don't wedge the queue */ 1120 xpt_release_devq(done_ccb->ccb_h.path, 1121 /*count*/1, 1122 /*run_queue*/TRUE); 1123 } 1124 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1125 xpt_release_ccb(done_ccb); 1126 xpt_schedule(periph, priority); 1127out: 1128 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1129 cam_release_devq(path, 0, 0, 0, FALSE); 1130 cam_periph_release_locked(periph); 1131 return; 1132 } 1133 case PROBE_INQUIRY: 1134 case PROBE_FULL_INQUIRY: 1135 { 1136 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1137 struct scsi_inquiry_data *inq_buf; 1138 u_int8_t periph_qual; 1139 1140 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1141 inq_buf = &path->device->inq_data; 1142 1143 periph_qual = SID_QUAL(inq_buf); 1144 1145 if (periph_qual == SID_QUAL_LU_CONNECTED) { 1146 u_int8_t len; 1147 1148 /* 1149 * We conservatively request only 1150 * SHORT_INQUIRY_LEN bytes of inquiry 1151 * information during our first try 1152 * at sending an INQUIRY. If the device 1153 * has more information to give, 1154 * perform a second request specifying 1155 * the amount of information the device 1156 * is willing to give. 1157 */ 1158 len = inq_buf->additional_length 1159 + offsetof(struct scsi_inquiry_data, 1160 additional_length) + 1; 1161 if (softc->action == PROBE_INQUIRY 1162 && len > SHORT_INQUIRY_LENGTH) { 1163 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1164 xpt_release_ccb(done_ccb); 1165 xpt_schedule(periph, priority); 1166 goto out; 1167 } 1168 1169 scsi_find_quirk(path->device); 1170 1171 scsi_devise_transport(path); 1172 1173 if (path->device->lun_id == 0 && 1174 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1175 (SCSI_QUIRK(path->device)->quirks & 1176 CAM_QUIRK_NORPTLUNS) == 0) { 1177 PROBE_SET_ACTION(softc, 1178 PROBE_REPORT_LUNS); 1179 /* 1180 * Start with room for *one* lun. 1181 */ 1182 periph->path->target->rpl_size = 16; 1183 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1184 PROBE_SET_ACTION(softc, 1185 PROBE_MODE_SENSE); 1186 else 1187 PROBE_SET_ACTION(softc, 1188 PROBE_SUPPORTED_VPD_LIST); 1189 1190 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1191 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1192 xpt_acquire_device(path->device); 1193 } 1194 xpt_release_ccb(done_ccb); 1195 xpt_schedule(periph, priority); 1196 goto out; 1197 } else if (path->device->lun_id == 0 && 1198 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1199 (SCSI_QUIRK(path->device)->quirks & 1200 CAM_QUIRK_NORPTLUNS) == 0) { 1201 if (path->device->flags & 1202 CAM_DEV_UNCONFIGURED) { 1203 path->device->flags &= 1204 ~CAM_DEV_UNCONFIGURED; 1205 xpt_acquire_device(path->device); 1206 } 1207 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1208 periph->path->target->rpl_size = 16; 1209 xpt_release_ccb(done_ccb); 1210 xpt_schedule(periph, priority); 1211 goto out; 1212 } 1213 } else if (cam_periph_error(done_ccb, 0, 1214 done_ccb->ccb_h.target_lun > 0 1215 ? SF_RETRY_UA|SF_QUIET_IR 1216 : SF_RETRY_UA, 1217 &softc->saved_ccb) == ERESTART) { 1218 goto outr; 1219 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1220 /* Don't wedge the queue */ 1221 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1222 /*run_queue*/TRUE); 1223 } 1224 /* 1225 * If we get to this point, we got an error status back 1226 * from the inquiry and the error status doesn't require 1227 * automatically retrying the command. Therefore, the 1228 * inquiry failed. If we had inquiry information before 1229 * for this device, but this latest inquiry command failed, 1230 * the device has probably gone away. If this device isn't 1231 * already marked unconfigured, notify the peripheral 1232 * drivers that this device is no more. 1233 */ 1234 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1235 /* Send the async notification. */ 1236 xpt_async(AC_LOST_DEVICE, path, NULL); 1237 PROBE_SET_ACTION(softc, PROBE_INVALID); 1238 1239 xpt_release_ccb(done_ccb); 1240 break; 1241 } 1242 case PROBE_REPORT_LUNS: 1243 { 1244 struct ccb_scsiio *csio; 1245 struct scsi_report_luns_data *lp; 1246 u_int nlun, maxlun; 1247 1248 csio = &done_ccb->csio; 1249 1250 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1251 nlun = scsi_4btoul(lp->length) / 8; 1252 maxlun = (csio->dxfer_len / 8) - 1; 1253 1254 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1255 if (cam_periph_error(done_ccb, 0, 1256 done_ccb->ccb_h.target_lun > 0 ? 1257 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1258 &softc->saved_ccb) == ERESTART) { 1259 goto outr; 1260 } 1261 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1262 xpt_release_devq(done_ccb->ccb_h.path, 1, 1263 TRUE); 1264 } 1265 free(lp, M_CAMXPT); 1266 lp = NULL; 1267 } else if (nlun > maxlun) { 1268 /* 1269 * Reallocate and retry to cover all luns 1270 */ 1271 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1272 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1273 nlun)); 1274 free(lp, M_CAMXPT); 1275 path->target->rpl_size = (nlun << 3) + 8; 1276 xpt_release_ccb(done_ccb); 1277 xpt_schedule(periph, priority); 1278 goto out; 1279 } else if (nlun == 0) { 1280 /* 1281 * If there don't appear to be any luns, bail. 1282 */ 1283 free(lp, M_CAMXPT); 1284 lp = NULL; 1285 } else { 1286 lun_id_t lun; 1287 int idx; 1288 1289 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1290 ("Probe: %u lun(s) reported\n", nlun)); 1291 1292 CAM_GET_LUN(lp, 0, lun); 1293 /* 1294 * If the first lun is not lun 0, then either there 1295 * is no lun 0 in the list, or the list is unsorted. 1296 */ 1297 if (lun != 0) { 1298 for (idx = 0; idx < nlun; idx++) { 1299 CAM_GET_LUN(lp, idx, lun); 1300 if (lun == 0) { 1301 break; 1302 } 1303 } 1304 if (idx != nlun) { 1305 uint8_t tlun[8]; 1306 memcpy(tlun, 1307 lp->luns[0].lundata, 8); 1308 memcpy(lp->luns[0].lundata, 1309 lp->luns[idx].lundata, 8); 1310 memcpy(lp->luns[idx].lundata, 1311 tlun, 8); 1312 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1313 ("lun 0 in position %u\n", idx)); 1314 } else { 1315 /* 1316 * There is no lun 0 in our list. Destroy 1317 * the validity of the inquiry data so we 1318 * bail here and now. 1319 */ 1320 path->device->flags &= 1321 ~CAM_DEV_INQUIRY_DATA_VALID; 1322 } 1323 } 1324 /* 1325 * If we have an old lun list, We can either 1326 * retest luns that appear to have been dropped, 1327 * or just nuke them. We'll opt for the latter. 1328 * This function will also install the new list 1329 * in the target structure. 1330 */ 1331 probe_purge_old(path, lp, softc->flags); 1332 lp = NULL; 1333 } 1334 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) { 1335 struct scsi_inquiry_data *inq_buf; 1336 inq_buf = &path->device->inq_data; 1337 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1338 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1339 else 1340 PROBE_SET_ACTION(softc, 1341 PROBE_SUPPORTED_VPD_LIST); 1342 xpt_release_ccb(done_ccb); 1343 xpt_schedule(periph, priority); 1344 goto out; 1345 } 1346 if (lp) { 1347 free(lp, M_CAMXPT); 1348 } 1349 break; 1350 } 1351 case PROBE_MODE_SENSE: 1352 { 1353 struct ccb_scsiio *csio; 1354 struct scsi_mode_header_6 *mode_hdr; 1355 1356 csio = &done_ccb->csio; 1357 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1358 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1359 struct scsi_control_page *page; 1360 u_int8_t *offset; 1361 1362 offset = ((u_int8_t *)&mode_hdr[1]) 1363 + mode_hdr->blk_desc_len; 1364 page = (struct scsi_control_page *)offset; 1365 path->device->queue_flags = page->queue_flags; 1366 } else if (cam_periph_error(done_ccb, 0, 1367 SF_RETRY_UA|SF_NO_PRINT, 1368 &softc->saved_ccb) == ERESTART) { 1369 goto outr; 1370 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1371 /* Don't wedge the queue */ 1372 xpt_release_devq(done_ccb->ccb_h.path, 1373 /*count*/1, /*run_queue*/TRUE); 1374 } 1375 xpt_release_ccb(done_ccb); 1376 free(mode_hdr, M_CAMXPT); 1377 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1378 xpt_schedule(periph, priority); 1379 goto out; 1380 } 1381 case PROBE_SUPPORTED_VPD_LIST: 1382 { 1383 struct ccb_scsiio *csio; 1384 struct scsi_vpd_supported_page_list *page_list; 1385 1386 csio = &done_ccb->csio; 1387 page_list = 1388 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1389 1390 if (path->device->supported_vpds != NULL) { 1391 free(path->device->supported_vpds, M_CAMXPT); 1392 path->device->supported_vpds = NULL; 1393 path->device->supported_vpds_len = 0; 1394 } 1395 1396 if (page_list == NULL) { 1397 /* 1398 * Don't process the command as it was never sent 1399 */ 1400 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1401 /* Got vpd list */ 1402 path->device->supported_vpds_len = page_list->length + 1403 SVPD_SUPPORTED_PAGES_HDR_LEN; 1404 path->device->supported_vpds = (uint8_t *)page_list; 1405 xpt_release_ccb(done_ccb); 1406 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1407 xpt_schedule(periph, priority); 1408 goto out; 1409 } else if (cam_periph_error(done_ccb, 0, 1410 SF_RETRY_UA|SF_NO_PRINT, 1411 &softc->saved_ccb) == ERESTART) { 1412 goto outr; 1413 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1414 /* Don't wedge the queue */ 1415 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1416 /*run_queue*/TRUE); 1417 } 1418 1419 if (page_list) 1420 free(page_list, M_CAMXPT); 1421 /* No VPDs available, skip to device check. */ 1422 csio->data_ptr = NULL; 1423 goto probe_device_check; 1424 } 1425 case PROBE_DEVICE_ID: 1426 { 1427 struct scsi_vpd_device_id *devid; 1428 struct ccb_scsiio *csio; 1429 uint32_t length = 0; 1430 1431 csio = &done_ccb->csio; 1432 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1433 1434 /* Clean up from previous instance of this device */ 1435 if (path->device->device_id != NULL) { 1436 path->device->device_id_len = 0; 1437 free(path->device->device_id, M_CAMXPT); 1438 path->device->device_id = NULL; 1439 } 1440 1441 if (devid == NULL) { 1442 /* Don't process the command as it was never sent */ 1443 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1444 length = scsi_2btoul(devid->length); 1445 if (length != 0) { 1446 /* 1447 * NB: device_id_len is actual response 1448 * size, not buffer size. 1449 */ 1450 path->device->device_id_len = length + 1451 SVPD_DEVICE_ID_HDR_LEN; 1452 path->device->device_id = (uint8_t *)devid; 1453 } 1454 } else if (cam_periph_error(done_ccb, 0, 1455 SF_RETRY_UA, 1456 &softc->saved_ccb) == ERESTART) { 1457 goto outr; 1458 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1459 /* Don't wedge the queue */ 1460 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1461 /*run_queue*/TRUE); 1462 } 1463 1464 /* Free the device id space if we don't use it */ 1465 if (devid && length == 0) 1466 free(devid, M_CAMXPT); 1467 xpt_release_ccb(done_ccb); 1468 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1469 xpt_schedule(periph, priority); 1470 goto out; 1471 } 1472 1473probe_device_check: 1474 case PROBE_SERIAL_NUM: 1475 { 1476 struct ccb_scsiio *csio; 1477 struct scsi_vpd_unit_serial_number *serial_buf; 1478 u_int32_t priority; 1479 int changed; 1480 int have_serialnum; 1481 1482 changed = 1; 1483 have_serialnum = 0; 1484 csio = &done_ccb->csio; 1485 priority = done_ccb->ccb_h.pinfo.priority; 1486 serial_buf = 1487 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1488 1489 if (serial_buf == NULL) { 1490 /* 1491 * Don't process the command as it was never sent 1492 */ 1493 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1494 && (serial_buf->length > 0)) { 1495 1496 have_serialnum = 1; 1497 path->device->serial_num = 1498 (u_int8_t *)malloc((serial_buf->length + 1), 1499 M_CAMXPT, M_NOWAIT); 1500 if (path->device->serial_num != NULL) { 1501 memcpy(path->device->serial_num, 1502 serial_buf->serial_num, 1503 serial_buf->length); 1504 path->device->serial_num_len = 1505 serial_buf->length; 1506 path->device->serial_num[serial_buf->length] 1507 = '\0'; 1508 } 1509 } else if (cam_periph_error(done_ccb, 0, 1510 SF_RETRY_UA|SF_NO_PRINT, 1511 &softc->saved_ccb) == ERESTART) { 1512 goto outr; 1513 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1514 /* Don't wedge the queue */ 1515 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1516 /*run_queue*/TRUE); 1517 } 1518 1519 /* 1520 * Let's see if we have seen this device before. 1521 */ 1522 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1523 MD5_CTX context; 1524 u_int8_t digest[16]; 1525 1526 MD5Init(&context); 1527 1528 MD5Update(&context, 1529 (unsigned char *)&path->device->inq_data, 1530 sizeof(struct scsi_inquiry_data)); 1531 1532 if (have_serialnum) 1533 MD5Update(&context, serial_buf->serial_num, 1534 serial_buf->length); 1535 1536 MD5Final(digest, &context); 1537 if (bcmp(softc->digest, digest, 16) == 0) 1538 changed = 0; 1539 1540 /* 1541 * XXX Do we need to do a TUR in order to ensure 1542 * that the device really hasn't changed??? 1543 */ 1544 if ((changed != 0) 1545 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1546 xpt_async(AC_LOST_DEVICE, path, NULL); 1547 } 1548 if (serial_buf != NULL) 1549 free(serial_buf, M_CAMXPT); 1550 1551 if (changed != 0) { 1552 /* 1553 * Now that we have all the necessary 1554 * information to safely perform transfer 1555 * negotiations... Controllers don't perform 1556 * any negotiation or tagged queuing until 1557 * after the first XPT_SET_TRAN_SETTINGS ccb is 1558 * received. So, on a new device, just retrieve 1559 * the user settings, and set them as the current 1560 * settings to set the device up. 1561 */ 1562 proberequestdefaultnegotiation(periph); 1563 xpt_release_ccb(done_ccb); 1564 1565 /* 1566 * Perform a TUR to allow the controller to 1567 * perform any necessary transfer negotiation. 1568 */ 1569 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1570 xpt_schedule(periph, priority); 1571 goto out; 1572 } 1573 xpt_release_ccb(done_ccb); 1574 break; 1575 } 1576 case PROBE_TUR_FOR_NEGOTIATION: 1577 case PROBE_DV_EXIT: 1578 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1579 cam_periph_error(done_ccb, 0, 1580 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1581 } 1582 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1583 /* Don't wedge the queue */ 1584 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1585 /*run_queue*/TRUE); 1586 } 1587 /* 1588 * Do Domain Validation for lun 0 on devices that claim 1589 * to support Synchronous Transfer modes. 1590 */ 1591 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1592 && done_ccb->ccb_h.target_lun == 0 1593 && (path->device->inq_data.flags & SID_Sync) != 0 1594 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1595 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1596 ("Begin Domain Validation\n")); 1597 path->device->flags |= CAM_DEV_IN_DV; 1598 xpt_release_ccb(done_ccb); 1599 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1600 xpt_schedule(periph, priority); 1601 goto out; 1602 } 1603 if (softc->action == PROBE_DV_EXIT) { 1604 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1605 ("Leave Domain Validation\n")); 1606 } 1607 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1608 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1609 xpt_acquire_device(path->device); 1610 } 1611 path->device->flags &= 1612 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1613 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1614 /* Inform the XPT that a new device has been found */ 1615 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1616 xpt_action(done_ccb); 1617 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1618 done_ccb); 1619 } 1620 PROBE_SET_ACTION(softc, PROBE_DONE); 1621 xpt_release_ccb(done_ccb); 1622 break; 1623 case PROBE_INQUIRY_BASIC_DV1: 1624 case PROBE_INQUIRY_BASIC_DV2: 1625 { 1626 struct scsi_inquiry_data *nbuf; 1627 struct ccb_scsiio *csio; 1628 1629 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1630 cam_periph_error(done_ccb, 0, 1631 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1632 } 1633 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1634 /* Don't wedge the queue */ 1635 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1636 /*run_queue*/TRUE); 1637 } 1638 csio = &done_ccb->csio; 1639 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1640 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1641 xpt_print(path, 1642 "inquiry data fails comparison at DV%d step\n", 1643 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1644 if (proberequestbackoff(periph, path->device)) { 1645 path->device->flags &= ~CAM_DEV_IN_DV; 1646 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1647 } else { 1648 /* give up */ 1649 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1650 } 1651 free(nbuf, M_CAMXPT); 1652 xpt_release_ccb(done_ccb); 1653 xpt_schedule(periph, priority); 1654 goto out; 1655 } 1656 free(nbuf, M_CAMXPT); 1657 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1658 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1659 xpt_release_ccb(done_ccb); 1660 xpt_schedule(periph, priority); 1661 goto out; 1662 } 1663 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1664 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1665 ("Leave Domain Validation Successfully\n")); 1666 } 1667 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1668 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1669 xpt_acquire_device(path->device); 1670 } 1671 path->device->flags &= 1672 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1673 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1674 /* Inform the XPT that a new device has been found */ 1675 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1676 xpt_action(done_ccb); 1677 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1678 done_ccb); 1679 } 1680 PROBE_SET_ACTION(softc, PROBE_DONE); 1681 xpt_release_ccb(done_ccb); 1682 break; 1683 } 1684 default: 1685 panic("probedone: invalid action state 0x%x\n", softc->action); 1686 } 1687 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1688 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1689 done_ccb->ccb_h.status = CAM_REQ_CMP; 1690 xpt_done(done_ccb); 1691 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1692 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1693 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1694 cam_release_devq(path, 0, 0, 0, FALSE); 1695 cam_periph_release_locked(periph); 1696 cam_periph_invalidate(periph); 1697 cam_periph_release_locked(periph); 1698 } else { 1699 probeschedule(periph); 1700 goto out; 1701 } 1702} 1703 1704static void 1705probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1706 probe_flags flags) 1707{ 1708 struct cam_path *tp; 1709 struct scsi_report_luns_data *old; 1710 u_int idx1, idx2, nlun_old, nlun_new; 1711 lun_id_t this_lun; 1712 u_int8_t *ol, *nl; 1713 1714 if (path->target == NULL) { 1715 return; 1716 } 1717 mtx_lock(&path->target->luns_mtx); 1718 old = path->target->luns; 1719 path->target->luns = new; 1720 mtx_unlock(&path->target->luns_mtx); 1721 if (old == NULL) 1722 return; 1723 nlun_old = scsi_4btoul(old->length) / 8; 1724 nlun_new = scsi_4btoul(new->length) / 8; 1725 1726 /* 1727 * We are not going to assume sorted lists. Deal. 1728 */ 1729 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1730 ol = old->luns[idx1].lundata; 1731 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1732 nl = new->luns[idx2].lundata; 1733 if (memcmp(nl, ol, 8) == 0) { 1734 break; 1735 } 1736 } 1737 if (idx2 < nlun_new) { 1738 continue; 1739 } 1740 /* 1741 * An 'old' item not in the 'new' list. 1742 * Nuke it. Except that if it is lun 0, 1743 * that would be what the probe state 1744 * machine is currently working on, 1745 * so we won't do that. 1746 */ 1747 CAM_GET_LUN(old, idx1, this_lun); 1748 if (this_lun == 0) { 1749 continue; 1750 } 1751 1752 /* 1753 * We also cannot nuke it if it is 1754 * not in a lun format we understand 1755 * and replace the LUN with a "simple" LUN 1756 * if that is all the HBA supports. 1757 */ 1758 if (!(flags & PROBE_EXTLUN)) { 1759 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1760 continue; 1761 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1762 } 1763 if (!CAM_LUN_ONLY_32BITS(old, idx1)) 1764 continue; 1765 1766 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1767 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1768 xpt_async(AC_LOST_DEVICE, tp, NULL); 1769 xpt_free_path(tp); 1770 } 1771 } 1772 free(old, M_CAMXPT); 1773} 1774 1775static void 1776probecleanup(struct cam_periph *periph) 1777{ 1778 free(periph->softc, M_CAMXPT); 1779} 1780 1781static void 1782scsi_find_quirk(struct cam_ed *device) 1783{ 1784 struct scsi_quirk_entry *quirk; 1785 caddr_t match; 1786 1787 match = cam_quirkmatch((caddr_t)&device->inq_data, 1788 (caddr_t)scsi_quirk_table, 1789 sizeof(scsi_quirk_table) / 1790 sizeof(*scsi_quirk_table), 1791 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1792 1793 if (match == NULL) 1794 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1795 1796 quirk = (struct scsi_quirk_entry *)match; 1797 device->quirk = quirk; 1798 device->mintags = quirk->mintags; 1799 device->maxtags = quirk->maxtags; 1800} 1801 1802static int 1803sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1804{ 1805 int error, val; 1806 1807 val = cam_srch_hi; 1808 error = sysctl_handle_int(oidp, &val, 0, req); 1809 if (error != 0 || req->newptr == NULL) 1810 return (error); 1811 if (val == 0 || val == 1) { 1812 cam_srch_hi = val; 1813 return (0); 1814 } else { 1815 return (EINVAL); 1816 } 1817} 1818 1819typedef struct { 1820 union ccb *request_ccb; 1821 struct ccb_pathinq *cpi; 1822 int counter; 1823 int lunindex[0]; 1824} scsi_scan_bus_info; 1825 1826/* 1827 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1828 * As the scan progresses, scsi_scan_bus is used as the 1829 * callback on completion function. 1830 */ 1831static void 1832scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1833{ 1834 struct mtx *mtx; 1835 1836 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1837 ("scsi_scan_bus\n")); 1838 switch (request_ccb->ccb_h.func_code) { 1839 case XPT_SCAN_BUS: 1840 case XPT_SCAN_TGT: 1841 { 1842 scsi_scan_bus_info *scan_info; 1843 union ccb *work_ccb, *reset_ccb; 1844 struct cam_path *path; 1845 u_int i; 1846 u_int low_target, max_target; 1847 u_int initiator_id; 1848 1849 /* Find out the characteristics of the bus */ 1850 work_ccb = xpt_alloc_ccb_nowait(); 1851 if (work_ccb == NULL) { 1852 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1853 xpt_done(request_ccb); 1854 return; 1855 } 1856 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1857 request_ccb->ccb_h.pinfo.priority); 1858 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1859 xpt_action(work_ccb); 1860 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1861 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1862 xpt_free_ccb(work_ccb); 1863 xpt_done(request_ccb); 1864 return; 1865 } 1866 1867 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1868 /* 1869 * Can't scan the bus on an adapter that 1870 * cannot perform the initiator role. 1871 */ 1872 request_ccb->ccb_h.status = CAM_REQ_CMP; 1873 xpt_free_ccb(work_ccb); 1874 xpt_done(request_ccb); 1875 return; 1876 } 1877 1878 /* We may need to reset bus first, if we haven't done it yet. */ 1879 if ((work_ccb->cpi.hba_inquiry & 1880 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1881 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1882 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1883 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1884 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1885 CAM_PRIORITY_NONE); 1886 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1887 xpt_action(reset_ccb); 1888 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1889 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1890 xpt_free_ccb(reset_ccb); 1891 xpt_free_ccb(work_ccb); 1892 xpt_done(request_ccb); 1893 return; 1894 } 1895 xpt_free_ccb(reset_ccb); 1896 } 1897 1898 /* Save some state for use while we probe for devices */ 1899 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1900 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1901 if (scan_info == NULL) { 1902 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1903 xpt_free_ccb(work_ccb); 1904 xpt_done(request_ccb); 1905 return; 1906 } 1907 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1908 ("SCAN start for %p\n", scan_info)); 1909 scan_info->request_ccb = request_ccb; 1910 scan_info->cpi = &work_ccb->cpi; 1911 1912 /* Cache on our stack so we can work asynchronously */ 1913 max_target = scan_info->cpi->max_target; 1914 low_target = 0; 1915 initiator_id = scan_info->cpi->initiator_id; 1916 1917 1918 /* 1919 * We can scan all targets in parallel, or do it sequentially. 1920 */ 1921 1922 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 1923 max_target = low_target = request_ccb->ccb_h.target_id; 1924 scan_info->counter = 0; 1925 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1926 max_target = 0; 1927 scan_info->counter = 0; 1928 } else { 1929 scan_info->counter = scan_info->cpi->max_target + 1; 1930 if (scan_info->cpi->initiator_id < scan_info->counter) { 1931 scan_info->counter--; 1932 } 1933 } 1934 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 1935 mtx_unlock(mtx); 1936 1937 for (i = low_target; i <= max_target; i++) { 1938 cam_status status; 1939 if (i == initiator_id) 1940 continue; 1941 1942 status = xpt_create_path(&path, NULL, 1943 request_ccb->ccb_h.path_id, 1944 i, 0); 1945 if (status != CAM_REQ_CMP) { 1946 printf("scsi_scan_bus: xpt_create_path failed" 1947 " with status %#x, bus scan halted\n", 1948 status); 1949 free(scan_info, M_CAMXPT); 1950 request_ccb->ccb_h.status = status; 1951 xpt_free_ccb(work_ccb); 1952 xpt_done(request_ccb); 1953 break; 1954 } 1955 work_ccb = xpt_alloc_ccb_nowait(); 1956 if (work_ccb == NULL) { 1957 xpt_free_ccb((union ccb *)scan_info->cpi); 1958 free(scan_info, M_CAMXPT); 1959 xpt_free_path(path); 1960 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1961 xpt_done(request_ccb); 1962 break; 1963 } 1964 xpt_setup_ccb(&work_ccb->ccb_h, path, 1965 request_ccb->ccb_h.pinfo.priority); 1966 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1967 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 1968 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 1969 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 1970 work_ccb->crcn.flags = request_ccb->crcn.flags; 1971 xpt_action(work_ccb); 1972 } 1973 1974 mtx_lock(mtx); 1975 break; 1976 } 1977 case XPT_SCAN_LUN: 1978 { 1979 cam_status status; 1980 struct cam_path *path, *oldpath; 1981 scsi_scan_bus_info *scan_info; 1982 struct cam_et *target; 1983 struct cam_ed *device; 1984 int next_target; 1985 path_id_t path_id; 1986 target_id_t target_id; 1987 lun_id_t lun_id; 1988 1989 oldpath = request_ccb->ccb_h.path; 1990 1991 status = cam_ccb_status(request_ccb); 1992 /* Reuse the same CCB to query if a device was really found */ 1993 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 1994 xpt_setup_ccb(&request_ccb->ccb_h, request_ccb->ccb_h.path, 1995 request_ccb->ccb_h.pinfo.priority); 1996 request_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1997 1998 1999 path_id = request_ccb->ccb_h.path_id; 2000 target_id = request_ccb->ccb_h.target_id; 2001 lun_id = request_ccb->ccb_h.target_lun; 2002 xpt_action(request_ccb); 2003 2004 target = request_ccb->ccb_h.path->target; 2005 next_target = 1; 2006 2007 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2008 mtx_lock(mtx); 2009 mtx_lock(&target->luns_mtx); 2010 if (target->luns) { 2011 lun_id_t first; 2012 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2013 2014 /* 2015 * Make sure we skip over lun 0 if it's the first member 2016 * of the list as we've actually just finished probing 2017 * it. 2018 */ 2019 CAM_GET_LUN(target->luns, 0, first); 2020 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2021 scan_info->lunindex[target_id]++; 2022 } 2023 2024 /* 2025 * Skip any LUNs that the HBA can't deal with. 2026 */ 2027 while (scan_info->lunindex[target_id] < nluns) { 2028 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2029 CAM_GET_LUN(target->luns, 2030 scan_info->lunindex[target_id], 2031 lun_id); 2032 break; 2033 } 2034 2035 /* XXX print warning? */ 2036 if (!CAM_LUN_ONLY_32BITS(target->luns, 2037 scan_info->lunindex[target_id])) 2038 continue; 2039 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2040 scan_info->lunindex[target_id])) { 2041 CAM_GET_SIMPLE_LUN(target->luns, 2042 scan_info->lunindex[target_id], 2043 lun_id); 2044 break; 2045 } 2046 2047 scan_info->lunindex[target_id]++; 2048 } 2049 2050 if (scan_info->lunindex[target_id] < nluns) { 2051 mtx_unlock(&target->luns_mtx); 2052 next_target = 0; 2053 CAM_DEBUG(request_ccb->ccb_h.path, 2054 CAM_DEBUG_PROBE, 2055 ("next lun to try at index %u is %jx\n", 2056 scan_info->lunindex[target_id], 2057 (uintmax_t)lun_id)); 2058 scan_info->lunindex[target_id]++; 2059 } else { 2060 mtx_unlock(&target->luns_mtx); 2061 /* 2062 * We're done with scanning all luns. 2063 * 2064 * Nuke the bogus device for lun 0 if lun 0 2065 * wasn't on the list. 2066 */ 2067 if (first != 0) { 2068 TAILQ_FOREACH(device, 2069 &target->ed_entries, links) { 2070 if (device->lun_id == 0) { 2071 break; 2072 } 2073 } 2074 if (device) { 2075 xpt_release_device(device); 2076 } 2077 } 2078 } 2079 } else { 2080 mtx_unlock(&target->luns_mtx); 2081 if (request_ccb->ccb_h.status != CAM_REQ_CMP) { 2082 int phl; 2083 2084 /* 2085 * If we already probed lun 0 successfully, or 2086 * we have additional configured luns on this 2087 * target that might have "gone away", go onto 2088 * the next lun. 2089 */ 2090 /* 2091 * We may touch devices that we don't 2092 * hold references too, so ensure they 2093 * don't disappear out from under us. 2094 * The target above is referenced by the 2095 * path in the request ccb. 2096 */ 2097 phl = 0; 2098 device = TAILQ_FIRST(&target->ed_entries); 2099 if (device != NULL) { 2100 phl = CAN_SRCH_HI_SPARSE(device); 2101 if (device->lun_id == 0) 2102 device = TAILQ_NEXT(device, links); 2103 } 2104 if ((lun_id != 0) || (device != NULL)) { 2105 if (lun_id < (CAM_SCSI2_MAXLUN-1) || phl) { 2106 lun_id++; 2107 next_target = 0; 2108 } 2109 } 2110 if (lun_id == request_ccb->ccb_h.target_lun 2111 || lun_id > scan_info->cpi->max_lun) 2112 next_target = 1; 2113 } else { 2114 2115 device = request_ccb->ccb_h.path->device; 2116 2117 if ((SCSI_QUIRK(device)->quirks & 2118 CAM_QUIRK_NOLUNS) == 0) { 2119 /* Try the next lun */ 2120 if (lun_id < (CAM_SCSI2_MAXLUN-1) 2121 || CAN_SRCH_HI_DENSE(device)) { 2122 lun_id++; 2123 next_target = 0; 2124 } 2125 } 2126 if (lun_id == request_ccb->ccb_h.target_lun 2127 || lun_id > scan_info->cpi->max_lun) 2128 next_target = 1; 2129 } 2130 } 2131 2132 /* 2133 * Check to see if we scan any further luns. 2134 */ 2135 if (next_target) { 2136 int done; 2137 2138 /* 2139 * Free the current request path- we're done with it. 2140 */ 2141 xpt_free_path(oldpath); 2142 hop_again: 2143 done = 0; 2144 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2145 done = 1; 2146 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2147 scan_info->counter++; 2148 if (scan_info->counter == 2149 scan_info->cpi->initiator_id) { 2150 scan_info->counter++; 2151 } 2152 if (scan_info->counter >= 2153 scan_info->cpi->max_target+1) { 2154 done = 1; 2155 } 2156 } else { 2157 scan_info->counter--; 2158 if (scan_info->counter == 0) { 2159 done = 1; 2160 } 2161 } 2162 if (done) { 2163 mtx_unlock(mtx); 2164 xpt_free_ccb(request_ccb); 2165 xpt_free_ccb((union ccb *)scan_info->cpi); 2166 request_ccb = scan_info->request_ccb; 2167 CAM_DEBUG(request_ccb->ccb_h.path, 2168 CAM_DEBUG_TRACE, 2169 ("SCAN done for %p\n", scan_info)); 2170 free(scan_info, M_CAMXPT); 2171 request_ccb->ccb_h.status = CAM_REQ_CMP; 2172 xpt_done(request_ccb); 2173 break; 2174 } 2175 2176 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2177 mtx_unlock(mtx); 2178 xpt_free_ccb(request_ccb); 2179 break; 2180 } 2181 status = xpt_create_path(&path, NULL, 2182 scan_info->request_ccb->ccb_h.path_id, 2183 scan_info->counter, 0); 2184 if (status != CAM_REQ_CMP) { 2185 mtx_unlock(mtx); 2186 printf("scsi_scan_bus: xpt_create_path failed" 2187 " with status %#x, bus scan halted\n", 2188 status); 2189 xpt_free_ccb(request_ccb); 2190 xpt_free_ccb((union ccb *)scan_info->cpi); 2191 request_ccb = scan_info->request_ccb; 2192 free(scan_info, M_CAMXPT); 2193 request_ccb->ccb_h.status = status; 2194 xpt_done(request_ccb); 2195 break; 2196 } 2197 xpt_setup_ccb(&request_ccb->ccb_h, path, 2198 request_ccb->ccb_h.pinfo.priority); 2199 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2200 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2201 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2202 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2203 request_ccb->crcn.flags = 2204 scan_info->request_ccb->crcn.flags; 2205 } else { 2206 status = xpt_create_path(&path, NULL, 2207 path_id, target_id, lun_id); 2208 /* 2209 * Free the old request path- we're done with it. We 2210 * do this *after* creating the new path so that 2211 * we don't remove a target that has our lun list 2212 * in the case that lun 0 is not present. 2213 */ 2214 xpt_free_path(oldpath); 2215 if (status != CAM_REQ_CMP) { 2216 printf("scsi_scan_bus: xpt_create_path failed " 2217 "with status %#x, halting LUN scan\n", 2218 status); 2219 goto hop_again; 2220 } 2221 xpt_setup_ccb(&request_ccb->ccb_h, path, 2222 request_ccb->ccb_h.pinfo.priority); 2223 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2224 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2225 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2226 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2227 request_ccb->crcn.flags = 2228 scan_info->request_ccb->crcn.flags; 2229 } 2230 mtx_unlock(mtx); 2231 xpt_action(request_ccb); 2232 break; 2233 } 2234 default: 2235 break; 2236 } 2237} 2238 2239static void 2240scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2241 cam_flags flags, union ccb *request_ccb) 2242{ 2243 struct ccb_pathinq cpi; 2244 cam_status status; 2245 struct cam_path *new_path; 2246 struct cam_periph *old_periph; 2247 int lock; 2248 2249 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2250 2251 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2252 cpi.ccb_h.func_code = XPT_PATH_INQ; 2253 xpt_action((union ccb *)&cpi); 2254 2255 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2256 if (request_ccb != NULL) { 2257 request_ccb->ccb_h.status = cpi.ccb_h.status; 2258 xpt_done(request_ccb); 2259 } 2260 return; 2261 } 2262 2263 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2264 /* 2265 * Can't scan the bus on an adapter that 2266 * cannot perform the initiator role. 2267 */ 2268 if (request_ccb != NULL) { 2269 request_ccb->ccb_h.status = CAM_REQ_CMP; 2270 xpt_done(request_ccb); 2271 } 2272 return; 2273 } 2274 2275 if (request_ccb == NULL) { 2276 request_ccb = xpt_alloc_ccb_nowait(); 2277 if (request_ccb == NULL) { 2278 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2279 "can't continue\n"); 2280 return; 2281 } 2282 status = xpt_create_path(&new_path, NULL, 2283 path->bus->path_id, 2284 path->target->target_id, 2285 path->device->lun_id); 2286 if (status != CAM_REQ_CMP) { 2287 xpt_print(path, "scsi_scan_lun: can't create path, " 2288 "can't continue\n"); 2289 xpt_free_ccb(request_ccb); 2290 return; 2291 } 2292 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2293 request_ccb->ccb_h.cbfcnp = xptscandone; 2294 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2295 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2296 request_ccb->crcn.flags = flags; 2297 } 2298 2299 lock = (xpt_path_owned(path) == 0); 2300 if (lock) 2301 xpt_path_lock(path); 2302 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2303 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2304 probe_softc *softc; 2305 2306 softc = (probe_softc *)old_periph->softc; 2307 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2308 &request_ccb->ccb_h, periph_links.tqe); 2309 } else { 2310 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2311 xpt_done(request_ccb); 2312 } 2313 } else { 2314 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2315 probestart, "probe", 2316 CAM_PERIPH_BIO, 2317 request_ccb->ccb_h.path, NULL, 0, 2318 request_ccb); 2319 2320 if (status != CAM_REQ_CMP) { 2321 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2322 "returned an error, can't continue probe\n"); 2323 request_ccb->ccb_h.status = status; 2324 xpt_done(request_ccb); 2325 } 2326 } 2327 if (lock) 2328 xpt_path_unlock(path); 2329} 2330 2331static void 2332xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2333{ 2334 2335 xpt_free_path(done_ccb->ccb_h.path); 2336 xpt_free_ccb(done_ccb); 2337} 2338 2339static struct cam_ed * 2340scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2341{ 2342 struct scsi_quirk_entry *quirk; 2343 struct cam_ed *device; 2344 2345 device = xpt_alloc_device(bus, target, lun_id); 2346 if (device == NULL) 2347 return (NULL); 2348 2349 /* 2350 * Take the default quirk entry until we have inquiry 2351 * data and can determine a better quirk to use. 2352 */ 2353 quirk = &scsi_quirk_table[scsi_quirk_table_size - 1]; 2354 device->quirk = (void *)quirk; 2355 device->mintags = quirk->mintags; 2356 device->maxtags = quirk->maxtags; 2357 bzero(&device->inq_data, sizeof(device->inq_data)); 2358 device->inq_flags = 0; 2359 device->queue_flags = 0; 2360 device->serial_num = NULL; 2361 device->serial_num_len = 0; 2362 device->device_id = NULL; 2363 device->device_id_len = 0; 2364 device->supported_vpds = NULL; 2365 device->supported_vpds_len = 0; 2366 return (device); 2367} 2368 2369static void 2370scsi_devise_transport(struct cam_path *path) 2371{ 2372 struct ccb_pathinq cpi; 2373 struct ccb_trans_settings cts; 2374 struct scsi_inquiry_data *inq_buf; 2375 2376 /* Get transport information from the SIM */ 2377 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2378 cpi.ccb_h.func_code = XPT_PATH_INQ; 2379 xpt_action((union ccb *)&cpi); 2380 2381 inq_buf = NULL; 2382 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2383 inq_buf = &path->device->inq_data; 2384 path->device->protocol = PROTO_SCSI; 2385 path->device->protocol_version = 2386 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2387 path->device->transport = cpi.transport; 2388 path->device->transport_version = cpi.transport_version; 2389 2390 /* 2391 * Any device not using SPI3 features should 2392 * be considered SPI2 or lower. 2393 */ 2394 if (inq_buf != NULL) { 2395 if (path->device->transport == XPORT_SPI 2396 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2397 && path->device->transport_version > 2) 2398 path->device->transport_version = 2; 2399 } else { 2400 struct cam_ed* otherdev; 2401 2402 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2403 otherdev != NULL; 2404 otherdev = TAILQ_NEXT(otherdev, links)) { 2405 if (otherdev != path->device) 2406 break; 2407 } 2408 2409 if (otherdev != NULL) { 2410 /* 2411 * Initially assume the same versioning as 2412 * prior luns for this target. 2413 */ 2414 path->device->protocol_version = 2415 otherdev->protocol_version; 2416 path->device->transport_version = 2417 otherdev->transport_version; 2418 } else { 2419 /* Until we know better, opt for safty */ 2420 path->device->protocol_version = 2; 2421 if (path->device->transport == XPORT_SPI) 2422 path->device->transport_version = 2; 2423 else 2424 path->device->transport_version = 0; 2425 } 2426 } 2427 2428 /* 2429 * XXX 2430 * For a device compliant with SPC-2 we should be able 2431 * to determine the transport version supported by 2432 * scrutinizing the version descriptors in the 2433 * inquiry buffer. 2434 */ 2435 2436 /* Tell the controller what we think */ 2437 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2438 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2439 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2440 cts.transport = path->device->transport; 2441 cts.transport_version = path->device->transport_version; 2442 cts.protocol = path->device->protocol; 2443 cts.protocol_version = path->device->protocol_version; 2444 cts.proto_specific.valid = 0; 2445 cts.xport_specific.valid = 0; 2446 xpt_action((union ccb *)&cts); 2447} 2448 2449static void 2450scsi_dev_advinfo(union ccb *start_ccb) 2451{ 2452 struct cam_ed *device; 2453 struct ccb_dev_advinfo *cdai; 2454 off_t amt; 2455 2456 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2457 device = start_ccb->ccb_h.path->device; 2458 cdai = &start_ccb->cdai; 2459 switch(cdai->buftype) { 2460 case CDAI_TYPE_SCSI_DEVID: 2461 if (cdai->flags & CDAI_FLAG_STORE) 2462 return; 2463 cdai->provsiz = device->device_id_len; 2464 if (device->device_id_len == 0) 2465 break; 2466 amt = device->device_id_len; 2467 if (cdai->provsiz > cdai->bufsiz) 2468 amt = cdai->bufsiz; 2469 memcpy(cdai->buf, device->device_id, amt); 2470 break; 2471 case CDAI_TYPE_SERIAL_NUM: 2472 if (cdai->flags & CDAI_FLAG_STORE) 2473 return; 2474 cdai->provsiz = device->serial_num_len; 2475 if (device->serial_num_len == 0) 2476 break; 2477 amt = device->serial_num_len; 2478 if (cdai->provsiz > cdai->bufsiz) 2479 amt = cdai->bufsiz; 2480 memcpy(cdai->buf, device->serial_num, amt); 2481 break; 2482 case CDAI_TYPE_PHYS_PATH: 2483 if (cdai->flags & CDAI_FLAG_STORE) { 2484 if (device->physpath != NULL) { 2485 free(device->physpath, M_CAMXPT); 2486 device->physpath = NULL; 2487 } 2488 device->physpath_len = cdai->bufsiz; 2489 /* Clear existing buffer if zero length */ 2490 if (cdai->bufsiz == 0) 2491 break; 2492 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2493 if (device->physpath == NULL) { 2494 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2495 return; 2496 } 2497 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2498 } else { 2499 cdai->provsiz = device->physpath_len; 2500 if (device->physpath_len == 0) 2501 break; 2502 amt = device->physpath_len; 2503 if (cdai->provsiz > cdai->bufsiz) 2504 amt = cdai->bufsiz; 2505 memcpy(cdai->buf, device->physpath, amt); 2506 } 2507 break; 2508 case CDAI_TYPE_RCAPLONG: 2509 if (cdai->flags & CDAI_FLAG_STORE) { 2510 if (device->rcap_buf != NULL) { 2511 free(device->rcap_buf, M_CAMXPT); 2512 device->rcap_buf = NULL; 2513 } 2514 2515 device->rcap_len = cdai->bufsiz; 2516 /* Clear existing buffer if zero length */ 2517 if (cdai->bufsiz == 0) 2518 break; 2519 2520 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2521 M_NOWAIT); 2522 if (device->rcap_buf == NULL) { 2523 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2524 return; 2525 } 2526 2527 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2528 } else { 2529 cdai->provsiz = device->rcap_len; 2530 if (device->rcap_len == 0) 2531 break; 2532 amt = device->rcap_len; 2533 if (cdai->provsiz > cdai->bufsiz) 2534 amt = cdai->bufsiz; 2535 memcpy(cdai->buf, device->rcap_buf, amt); 2536 } 2537 break; 2538 default: 2539 return; 2540 } 2541 start_ccb->ccb_h.status = CAM_REQ_CMP; 2542 2543 if (cdai->flags & CDAI_FLAG_STORE) { 2544 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2545 (void *)(uintptr_t)cdai->buftype); 2546 } 2547} 2548 2549static void 2550scsi_action(union ccb *start_ccb) 2551{ 2552 2553 switch (start_ccb->ccb_h.func_code) { 2554 case XPT_SET_TRAN_SETTINGS: 2555 { 2556 scsi_set_transfer_settings(&start_ccb->cts, 2557 start_ccb->ccb_h.path, 2558 /*async_update*/FALSE); 2559 break; 2560 } 2561 case XPT_SCAN_BUS: 2562 case XPT_SCAN_TGT: 2563 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2564 break; 2565 case XPT_SCAN_LUN: 2566 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2567 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2568 start_ccb); 2569 break; 2570 case XPT_DEV_ADVINFO: 2571 { 2572 scsi_dev_advinfo(start_ccb); 2573 break; 2574 } 2575 default: 2576 xpt_action_default(start_ccb); 2577 break; 2578 } 2579} 2580 2581static void 2582scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2583 int async_update) 2584{ 2585 struct ccb_pathinq cpi; 2586 struct ccb_trans_settings cur_cts; 2587 struct ccb_trans_settings_scsi *scsi; 2588 struct ccb_trans_settings_scsi *cur_scsi; 2589 struct scsi_inquiry_data *inq_data; 2590 struct cam_ed *device; 2591 2592 if (path == NULL || (device = path->device) == NULL) { 2593 cts->ccb_h.status = CAM_PATH_INVALID; 2594 xpt_done((union ccb *)cts); 2595 return; 2596 } 2597 2598 if (cts->protocol == PROTO_UNKNOWN 2599 || cts->protocol == PROTO_UNSPECIFIED) { 2600 cts->protocol = device->protocol; 2601 cts->protocol_version = device->protocol_version; 2602 } 2603 2604 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2605 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2606 cts->protocol_version = device->protocol_version; 2607 2608 if (cts->protocol != device->protocol) { 2609 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2610 cts->protocol, device->protocol); 2611 cts->protocol = device->protocol; 2612 } 2613 2614 if (cts->protocol_version > device->protocol_version) { 2615 if (bootverbose) { 2616 xpt_print(path, "Down reving Protocol " 2617 "Version from %d to %d?\n", cts->protocol_version, 2618 device->protocol_version); 2619 } 2620 cts->protocol_version = device->protocol_version; 2621 } 2622 2623 if (cts->transport == XPORT_UNKNOWN 2624 || cts->transport == XPORT_UNSPECIFIED) { 2625 cts->transport = device->transport; 2626 cts->transport_version = device->transport_version; 2627 } 2628 2629 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2630 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2631 cts->transport_version = device->transport_version; 2632 2633 if (cts->transport != device->transport) { 2634 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2635 cts->transport, device->transport); 2636 cts->transport = device->transport; 2637 } 2638 2639 if (cts->transport_version > device->transport_version) { 2640 if (bootverbose) { 2641 xpt_print(path, "Down reving Transport " 2642 "Version from %d to %d?\n", cts->transport_version, 2643 device->transport_version); 2644 } 2645 cts->transport_version = device->transport_version; 2646 } 2647 2648 /* 2649 * Nothing more of interest to do unless 2650 * this is a device connected via the 2651 * SCSI protocol. 2652 */ 2653 if (cts->protocol != PROTO_SCSI) { 2654 if (async_update == FALSE) 2655 xpt_action_default((union ccb *)cts); 2656 return; 2657 } 2658 2659 inq_data = &device->inq_data; 2660 scsi = &cts->proto_specific.scsi; 2661 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2662 cpi.ccb_h.func_code = XPT_PATH_INQ; 2663 xpt_action((union ccb *)&cpi); 2664 2665 /* SCSI specific sanity checking */ 2666 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2667 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2668 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2669 || (device->mintags == 0)) { 2670 /* 2671 * Can't tag on hardware that doesn't support tags, 2672 * doesn't have it enabled, or has broken tag support. 2673 */ 2674 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2675 } 2676 2677 if (async_update == FALSE) { 2678 /* 2679 * Perform sanity checking against what the 2680 * controller and device can do. 2681 */ 2682 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2683 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2684 cur_cts.type = cts->type; 2685 xpt_action((union ccb *)&cur_cts); 2686 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2687 return; 2688 } 2689 cur_scsi = &cur_cts.proto_specific.scsi; 2690 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2691 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2692 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2693 } 2694 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2695 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2696 } 2697 2698 /* SPI specific sanity checking */ 2699 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2700 u_int spi3caps; 2701 struct ccb_trans_settings_spi *spi; 2702 struct ccb_trans_settings_spi *cur_spi; 2703 2704 spi = &cts->xport_specific.spi; 2705 2706 cur_spi = &cur_cts.xport_specific.spi; 2707 2708 /* Fill in any gaps in what the user gave us */ 2709 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2710 spi->sync_period = cur_spi->sync_period; 2711 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2712 spi->sync_period = 0; 2713 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2714 spi->sync_offset = cur_spi->sync_offset; 2715 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2716 spi->sync_offset = 0; 2717 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2718 spi->ppr_options = cur_spi->ppr_options; 2719 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2720 spi->ppr_options = 0; 2721 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2722 spi->bus_width = cur_spi->bus_width; 2723 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2724 spi->bus_width = 0; 2725 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2726 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2727 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2728 } 2729 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2730 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2731 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2732 && (inq_data->flags & SID_Sync) == 0 2733 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2734 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2735 /* Force async */ 2736 spi->sync_period = 0; 2737 spi->sync_offset = 0; 2738 } 2739 2740 switch (spi->bus_width) { 2741 case MSG_EXT_WDTR_BUS_32_BIT: 2742 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2743 || (inq_data->flags & SID_WBus32) != 0 2744 || cts->type == CTS_TYPE_USER_SETTINGS) 2745 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2746 break; 2747 /* Fall Through to 16-bit */ 2748 case MSG_EXT_WDTR_BUS_16_BIT: 2749 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2750 || (inq_data->flags & SID_WBus16) != 0 2751 || cts->type == CTS_TYPE_USER_SETTINGS) 2752 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2753 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2754 break; 2755 } 2756 /* Fall Through to 8-bit */ 2757 default: /* New bus width?? */ 2758 case MSG_EXT_WDTR_BUS_8_BIT: 2759 /* All targets can do this */ 2760 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2761 break; 2762 } 2763 2764 spi3caps = cpi.xport_specific.spi.ppr_options; 2765 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2766 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2767 spi3caps &= inq_data->spi3data; 2768 2769 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2770 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2771 2772 if ((spi3caps & SID_SPI_IUS) == 0) 2773 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2774 2775 if ((spi3caps & SID_SPI_QAS) == 0) 2776 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2777 2778 /* No SPI Transfer settings are allowed unless we are wide */ 2779 if (spi->bus_width == 0) 2780 spi->ppr_options = 0; 2781 2782 if ((spi->valid & CTS_SPI_VALID_DISC) 2783 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2784 /* 2785 * Can't tag queue without disconnection. 2786 */ 2787 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2788 scsi->valid |= CTS_SCSI_VALID_TQ; 2789 } 2790 2791 /* 2792 * If we are currently performing tagged transactions to 2793 * this device and want to change its negotiation parameters, 2794 * go non-tagged for a bit to give the controller a chance to 2795 * negotiate unhampered by tag messages. 2796 */ 2797 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2798 && (device->inq_flags & SID_CmdQue) != 0 2799 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2800 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2801 CTS_SPI_VALID_SYNC_OFFSET| 2802 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2803 scsi_toggle_tags(path); 2804 } 2805 2806 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2807 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2808 int device_tagenb; 2809 2810 /* 2811 * If we are transitioning from tags to no-tags or 2812 * vice-versa, we need to carefully freeze and restart 2813 * the queue so that we don't overlap tagged and non-tagged 2814 * commands. We also temporarily stop tags if there is 2815 * a change in transfer negotiation settings to allow 2816 * "tag-less" negotiation. 2817 */ 2818 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2819 || (device->inq_flags & SID_CmdQue) != 0) 2820 device_tagenb = TRUE; 2821 else 2822 device_tagenb = FALSE; 2823 2824 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2825 && device_tagenb == FALSE) 2826 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2827 && device_tagenb == TRUE)) { 2828 2829 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2830 /* 2831 * Delay change to use tags until after a 2832 * few commands have gone to this device so 2833 * the controller has time to perform transfer 2834 * negotiations without tagged messages getting 2835 * in the way. 2836 */ 2837 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2838 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2839 } else { 2840 xpt_stop_tags(path); 2841 } 2842 } 2843 } 2844 if (async_update == FALSE) 2845 xpt_action_default((union ccb *)cts); 2846} 2847 2848static void 2849scsi_toggle_tags(struct cam_path *path) 2850{ 2851 struct cam_ed *dev; 2852 2853 /* 2854 * Give controllers a chance to renegotiate 2855 * before starting tag operations. We 2856 * "toggle" tagged queuing off then on 2857 * which causes the tag enable command delay 2858 * counter to come into effect. 2859 */ 2860 dev = path->device; 2861 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2862 || ((dev->inq_flags & SID_CmdQue) != 0 2863 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2864 struct ccb_trans_settings cts; 2865 2866 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2867 cts.protocol = PROTO_SCSI; 2868 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2869 cts.transport = XPORT_UNSPECIFIED; 2870 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2871 cts.proto_specific.scsi.flags = 0; 2872 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2873 scsi_set_transfer_settings(&cts, path, 2874 /*async_update*/TRUE); 2875 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2876 scsi_set_transfer_settings(&cts, path, 2877 /*async_update*/TRUE); 2878 } 2879} 2880 2881/* 2882 * Handle any per-device event notifications that require action by the XPT. 2883 */ 2884static void 2885scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2886 struct cam_ed *device, void *async_arg) 2887{ 2888 cam_status status; 2889 struct cam_path newpath; 2890 2891 /* 2892 * We only need to handle events for real devices. 2893 */ 2894 if (target->target_id == CAM_TARGET_WILDCARD 2895 || device->lun_id == CAM_LUN_WILDCARD) 2896 return; 2897 2898 /* 2899 * We need our own path with wildcards expanded to 2900 * handle certain types of events. 2901 */ 2902 if ((async_code == AC_SENT_BDR) 2903 || (async_code == AC_BUS_RESET) 2904 || (async_code == AC_INQ_CHANGED)) 2905 status = xpt_compile_path(&newpath, NULL, 2906 bus->path_id, 2907 target->target_id, 2908 device->lun_id); 2909 else 2910 status = CAM_REQ_CMP_ERR; 2911 2912 if (status == CAM_REQ_CMP) { 2913 2914 /* 2915 * Allow transfer negotiation to occur in a 2916 * tag free environment and after settle delay. 2917 */ 2918 if (async_code == AC_SENT_BDR 2919 || async_code == AC_BUS_RESET) { 2920 cam_freeze_devq(&newpath); 2921 cam_release_devq(&newpath, 2922 RELSIM_RELEASE_AFTER_TIMEOUT, 2923 /*reduction*/0, 2924 /*timeout*/scsi_delay, 2925 /*getcount_only*/0); 2926 scsi_toggle_tags(&newpath); 2927 } 2928 2929 if (async_code == AC_INQ_CHANGED) { 2930 /* 2931 * We've sent a start unit command, or 2932 * something similar to a device that 2933 * may have caused its inquiry data to 2934 * change. So we re-scan the device to 2935 * refresh the inquiry data for it. 2936 */ 2937 scsi_scan_lun(newpath.periph, &newpath, 2938 CAM_EXPECT_INQ_CHANGE, NULL); 2939 } 2940 xpt_release_path(&newpath); 2941 } else if (async_code == AC_LOST_DEVICE && 2942 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2943 device->flags |= CAM_DEV_UNCONFIGURED; 2944 xpt_release_device(device); 2945 } else if (async_code == AC_TRANSFER_NEG) { 2946 struct ccb_trans_settings *settings; 2947 struct cam_path path; 2948 2949 settings = (struct ccb_trans_settings *)async_arg; 2950 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 2951 device->lun_id); 2952 scsi_set_transfer_settings(settings, &path, 2953 /*async_update*/TRUE); 2954 xpt_release_path(&path); 2955 } 2956} 2957 2958static void 2959scsi_announce_periph(struct cam_periph *periph) 2960{ 2961 struct ccb_pathinq cpi; 2962 struct ccb_trans_settings cts; 2963 struct cam_path *path = periph->path; 2964 u_int speed; 2965 u_int freq; 2966 u_int mb; 2967 2968 cam_periph_assert(periph, MA_OWNED); 2969 2970 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 2971 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2972 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2973 xpt_action((union ccb*)&cts); 2974 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 2975 return; 2976 /* Ask the SIM for its base transfer speed */ 2977 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 2978 cpi.ccb_h.func_code = XPT_PATH_INQ; 2979 xpt_action((union ccb *)&cpi); 2980 /* Report connection speed */ 2981 speed = cpi.base_transfer_speed; 2982 freq = 0; 2983 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 2984 struct ccb_trans_settings_spi *spi = 2985 &cts.xport_specific.spi; 2986 2987 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 2988 && spi->sync_offset != 0) { 2989 freq = scsi_calc_syncsrate(spi->sync_period); 2990 speed = freq; 2991 } 2992 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 2993 speed *= (0x01 << spi->bus_width); 2994 } 2995 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 2996 struct ccb_trans_settings_fc *fc = 2997 &cts.xport_specific.fc; 2998 2999 if (fc->valid & CTS_FC_VALID_SPEED) 3000 speed = fc->bitrate; 3001 } 3002 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3003 struct ccb_trans_settings_sas *sas = 3004 &cts.xport_specific.sas; 3005 3006 if (sas->valid & CTS_SAS_VALID_SPEED) 3007 speed = sas->bitrate; 3008 } 3009 mb = speed / 1000; 3010 if (mb > 0) 3011 printf("%s%d: %d.%03dMB/s transfers", 3012 periph->periph_name, periph->unit_number, 3013 mb, speed % 1000); 3014 else 3015 printf("%s%d: %dKB/s transfers", periph->periph_name, 3016 periph->unit_number, speed); 3017 /* Report additional information about SPI connections */ 3018 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3019 struct ccb_trans_settings_spi *spi; 3020 3021 spi = &cts.xport_specific.spi; 3022 if (freq != 0) { 3023 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3024 freq % 1000, 3025 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3026 ? " DT" : "", 3027 spi->sync_offset); 3028 } 3029 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3030 && spi->bus_width > 0) { 3031 if (freq != 0) { 3032 printf(", "); 3033 } else { 3034 printf(" ("); 3035 } 3036 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3037 } else if (freq != 0) { 3038 printf(")"); 3039 } 3040 } 3041 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3042 struct ccb_trans_settings_fc *fc; 3043 3044 fc = &cts.xport_specific.fc; 3045 if (fc->valid & CTS_FC_VALID_WWNN) 3046 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3047 if (fc->valid & CTS_FC_VALID_WWPN) 3048 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3049 if (fc->valid & CTS_FC_VALID_PORT) 3050 printf(" PortID 0x%x", fc->port); 3051 } 3052 printf("\n"); 3053} 3054 3055