1 /*- 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Derived from the NetBSD SCSI changer driver. 30 * 31 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $ 32 * 33 */ 34 /*- 35 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com> 36 * All rights reserved. 37 * 38 * Partially based on an autochanger driver written by Stefan Grefen 39 * and on an autochanger driver written by the Systems Programming Group 40 * at the University of Utah Computer Science Department. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgements: 52 * This product includes software developed by Jason R. Thorpe 53 * for And Communications, http://www.and.com/ 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 62 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 63 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 64 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 65 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 */ 69 70 #include <sys/cdefs.h> 71 __FBSDID("$FreeBSD$"); 72 73 #include <sys/param.h> 74 #include <sys/queue.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 #include <sys/types.h> 78 #include <sys/malloc.h> 79 #include <sys/fcntl.h> 80 #include <sys/conf.h> 81 #include <sys/chio.h> 82 #include <sys/errno.h> 83 #include <sys/devicestat.h> 84 85 #include <cam/cam.h> 86 #include <cam/cam_ccb.h> 87 #include <cam/cam_periph.h> 88 #include <cam/cam_xpt_periph.h> 89 #include <cam/cam_debug.h> 90 91 #include <cam/scsi/scsi_all.h> 92 #include <cam/scsi/scsi_message.h> 93 #include <cam/scsi/scsi_ch.h> 94 95 /* 96 * Timeout definitions for various changer related commands. They may 97 * be too short for some devices (especially the timeout for INITIALIZE 98 * ELEMENT STATUS). 99 */ 100 101 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 102 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 103 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 104 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 105 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 60000; 106 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 107 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 108 109 typedef enum { 110 CH_FLAG_INVALID = 0x001 111 } ch_flags; 112 113 typedef enum { 114 CH_STATE_PROBE, 115 CH_STATE_NORMAL 116 } ch_state; 117 118 typedef enum { 119 CH_CCB_PROBE, 120 CH_CCB_WAITING 121 } ch_ccb_types; 122 123 typedef enum { 124 CH_Q_NONE = 0x00, 125 CH_Q_NO_DBD = 0x01, 126 CH_Q_NO_DVCID = 0x02 127 } ch_quirks; 128 129 #define CH_Q_BIT_STRING \ 130 "\020" \ 131 "\001NO_DBD" \ 132 "\002NO_DVCID" 133 134 #define ccb_state ppriv_field0 135 #define ccb_bp ppriv_ptr1 136 137 struct scsi_mode_sense_data { 138 struct scsi_mode_header_6 header; 139 struct scsi_mode_blk_desc blk_desc; 140 union { 141 struct page_element_address_assignment ea; 142 struct page_transport_geometry_parameters tg; 143 struct page_device_capabilities cap; 144 } pages; 145 }; 146 147 struct ch_softc { 148 ch_flags flags; 149 ch_state state; 150 ch_quirks quirks; 151 union ccb saved_ccb; 152 struct devstat *device_stats; 153 struct cdev *dev; 154 int open_count; 155 156 int sc_picker; /* current picker */ 157 158 /* 159 * The following information is obtained from the 160 * element address assignment page. 161 */ 162 int sc_firsts[CHET_MAX + 1]; /* firsts */ 163 int sc_counts[CHET_MAX + 1]; /* counts */ 164 165 /* 166 * The following mask defines the legal combinations 167 * of elements for the MOVE MEDIUM command. 168 */ 169 u_int8_t sc_movemask[CHET_MAX + 1]; 170 171 /* 172 * As above, but for EXCHANGE MEDIUM. 173 */ 174 u_int8_t sc_exchangemask[CHET_MAX + 1]; 175 176 /* 177 * Quirks; see below. XXX KDM not implemented yet 178 */ 179 int sc_settledelay; /* delay for settle */ 180 }; 181 182 static d_open_t chopen; 183 static d_close_t chclose; 184 static d_ioctl_t chioctl; 185 static periph_init_t chinit; 186 static periph_ctor_t chregister; 187 static periph_oninv_t choninvalidate; 188 static periph_dtor_t chcleanup; 189 static periph_start_t chstart; 190 static void chasync(void *callback_arg, u_int32_t code, 191 struct cam_path *path, void *arg); 192 static void chdone(struct cam_periph *periph, 193 union ccb *done_ccb); 194 static int cherror(union ccb *ccb, u_int32_t cam_flags, 195 u_int32_t sense_flags); 196 static int chmove(struct cam_periph *periph, 197 struct changer_move *cm); 198 static int chexchange(struct cam_periph *periph, 199 struct changer_exchange *ce); 200 static int chposition(struct cam_periph *periph, 201 struct changer_position *cp); 202 static int chgetelemstatus(struct cam_periph *periph, 203 int scsi_version, u_long cmd, 204 struct changer_element_status_request *csr); 205 static int chsetvoltag(struct cam_periph *periph, 206 struct changer_set_voltag_request *csvr); 207 static int chielem(struct cam_periph *periph, 208 unsigned int timeout); 209 static int chgetparams(struct cam_periph *periph); 210 static int chscsiversion(struct cam_periph *periph); 211 212 static struct periph_driver chdriver = 213 { 214 chinit, "ch", 215 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 216 }; 217 218 PERIPHDRIVER_DECLARE(ch, chdriver); 219 220 static struct cdevsw ch_cdevsw = { 221 .d_version = D_VERSION, 222 .d_flags = D_TRACKCLOSE, 223 .d_open = chopen, 224 .d_close = chclose, 225 .d_ioctl = chioctl, 226 .d_name = "ch", 227 }; 228 229 static MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers"); 230 231 static void 232 chinit(void) 233 { 234 cam_status status; 235 236 /* 237 * Install a global async callback. This callback will 238 * receive async callbacks like "new device found". 239 */ 240 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL); 241 242 if (status != CAM_REQ_CMP) { 243 printf("ch: Failed to attach master async callback " 244 "due to status 0x%x!\n", status); 245 } 246 } 247 248 static void 249 chdevgonecb(void *arg) 250 { 251 struct cam_sim *sim; 252 struct ch_softc *softc; 253 struct cam_periph *periph; 254 int i; 255 256 periph = (struct cam_periph *)arg; 257 sim = periph->sim; 258 softc = (struct ch_softc *)periph->softc; 259 260 KASSERT(softc->open_count >= 0, ("Negative open count %d", 261 softc->open_count)); 262 263 mtx_lock(sim->mtx); 264 265 /* 266 * When we get this callback, we will get no more close calls from 267 * devfs. So if we have any dangling opens, we need to release the 268 * reference held for that particular context. 269 */ 270 for (i = 0; i < softc->open_count; i++) 271 cam_periph_release_locked(periph); 272 273 softc->open_count = 0; 274 275 /* 276 * Release the reference held for the device node, it is gone now. 277 */ 278 cam_periph_release_locked(periph); 279 280 /* 281 * We reference the SIM lock directly here, instead of using 282 * cam_periph_unlock(). The reason is that the final call to 283 * cam_periph_release_locked() above could result in the periph 284 * getting freed. If that is the case, dereferencing the periph 285 * with a cam_periph_unlock() call would cause a page fault. 286 */ 287 mtx_unlock(sim->mtx); 288 } 289 290 static void 291 choninvalidate(struct cam_periph *periph) 292 { 293 struct ch_softc *softc; 294 295 softc = (struct ch_softc *)periph->softc; 296 297 /* 298 * De-register any async callbacks. 299 */ 300 xpt_register_async(0, chasync, periph, periph->path); 301 302 softc->flags |= CH_FLAG_INVALID; 303 304 /* 305 * Tell devfs this device has gone away, and ask for a callback 306 * when it has cleaned up its state. 307 */ 308 destroy_dev_sched_cb(softc->dev, chdevgonecb, periph); 309 310 xpt_print(periph->path, "lost device\n"); 311 312 } 313 314 static void 315 chcleanup(struct cam_periph *periph) 316 { 317 struct ch_softc *softc; 318 319 softc = (struct ch_softc *)periph->softc; 320 321 xpt_print(periph->path, "removing device entry\n"); 322 323 devstat_remove_entry(softc->device_stats); 324 325 free(softc, M_DEVBUF); 326 } 327 328 static void 329 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 330 { 331 struct cam_periph *periph; 332 333 periph = (struct cam_periph *)callback_arg; 334 335 switch(code) { 336 case AC_FOUND_DEVICE: 337 { 338 struct ccb_getdev *cgd; 339 cam_status status; 340 341 cgd = (struct ccb_getdev *)arg; 342 if (cgd == NULL) 343 break; 344 345 if (cgd->protocol != PROTO_SCSI) 346 break; 347 348 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 349 break; 350 351 /* 352 * Allocate a peripheral instance for 353 * this device and start the probe 354 * process. 355 */ 356 status = cam_periph_alloc(chregister, choninvalidate, 357 chcleanup, chstart, "ch", 358 CAM_PERIPH_BIO, cgd->ccb_h.path, 359 chasync, AC_FOUND_DEVICE, cgd); 360 361 if (status != CAM_REQ_CMP 362 && status != CAM_REQ_INPROG) 363 printf("chasync: Unable to probe new device " 364 "due to status 0x%x\n", status); 365 366 break; 367 368 } 369 default: 370 cam_periph_async(periph, code, path, arg); 371 break; 372 } 373 } 374 375 static cam_status 376 chregister(struct cam_periph *periph, void *arg) 377 { 378 struct ch_softc *softc; 379 struct ccb_getdev *cgd; 380 struct ccb_pathinq cpi; 381 382 cgd = (struct ccb_getdev *)arg; 383 if (cgd == NULL) { 384 printf("chregister: no getdev CCB, can't register device\n"); 385 return(CAM_REQ_CMP_ERR); 386 } 387 388 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 389 390 if (softc == NULL) { 391 printf("chregister: Unable to probe new device. " 392 "Unable to allocate softc\n"); 393 return(CAM_REQ_CMP_ERR); 394 } 395 396 bzero(softc, sizeof(*softc)); 397 softc->state = CH_STATE_PROBE; 398 periph->softc = softc; 399 softc->quirks = CH_Q_NONE; 400 401 /* 402 * The DVCID and CURDATA bits were not introduced until the SMC 403 * spec. If this device claims SCSI-2 or earlier support, then it 404 * very likely does not support these bits. 405 */ 406 if (cgd->inq_data.version <= SCSI_REV_2) 407 softc->quirks |= CH_Q_NO_DVCID; 408 409 bzero(&cpi, sizeof(cpi)); 410 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 411 cpi.ccb_h.func_code = XPT_PATH_INQ; 412 xpt_action((union ccb *)&cpi); 413 414 /* 415 * Changers don't have a blocksize, and obviously don't support 416 * tagged queueing. 417 */ 418 cam_periph_unlock(periph); 419 softc->device_stats = devstat_new_entry("ch", 420 periph->unit_number, 0, 421 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 422 SID_TYPE(&cgd->inq_data) | 423 XPORT_DEVSTAT_TYPE(cpi.transport), 424 DEVSTAT_PRIORITY_OTHER); 425 426 /* 427 * Acquire a reference to the periph before we create the devfs 428 * instance for it. We'll release this reference once the devfs 429 * instance has been freed. 430 */ 431 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 432 xpt_print(periph->path, "%s: lost periph during " 433 "registration!\n", __func__); 434 cam_periph_lock(periph); 435 return (CAM_REQ_CMP_ERR); 436 } 437 438 439 /* Register the device */ 440 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 441 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 442 periph->unit_number); 443 cam_periph_lock(periph); 444 softc->dev->si_drv1 = periph; 445 446 /* 447 * Add an async callback so that we get 448 * notified if this device goes away. 449 */ 450 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path); 451 452 /* 453 * Lock this periph until we are setup. 454 * This first call can't block 455 */ 456 (void)cam_periph_hold(periph, PRIBIO); 457 xpt_schedule(periph, CAM_PRIORITY_DEV); 458 459 return(CAM_REQ_CMP); 460 } 461 462 static int 463 chopen(struct cdev *dev, int flags, int fmt, struct thread *td) 464 { 465 struct cam_periph *periph; 466 struct ch_softc *softc; 467 int error; 468 469 periph = (struct cam_periph *)dev->si_drv1; 470 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 471 return (ENXIO); 472 473 softc = (struct ch_softc *)periph->softc; 474 475 cam_periph_lock(periph); 476 477 if (softc->flags & CH_FLAG_INVALID) { 478 cam_periph_release_locked(periph); 479 cam_periph_unlock(periph); 480 return(ENXIO); 481 } 482 483 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 484 cam_periph_unlock(periph); 485 cam_periph_release(periph); 486 return (error); 487 } 488 489 /* 490 * Load information about this changer device into the softc. 491 */ 492 if ((error = chgetparams(periph)) != 0) { 493 cam_periph_unhold(periph); 494 cam_periph_release_locked(periph); 495 cam_periph_unlock(periph); 496 return(error); 497 } 498 499 cam_periph_unhold(periph); 500 501 softc->open_count++; 502 503 cam_periph_unlock(periph); 504 505 return(error); 506 } 507 508 static int 509 chclose(struct cdev *dev, int flag, int fmt, struct thread *td) 510 { 511 struct cam_sim *sim; 512 struct cam_periph *periph; 513 struct ch_softc *softc; 514 515 periph = (struct cam_periph *)dev->si_drv1; 516 if (periph == NULL) 517 return(ENXIO); 518 519 sim = periph->sim; 520 softc = (struct ch_softc *)periph->softc; 521 522 mtx_lock(sim->mtx); 523 524 softc->open_count--; 525 526 cam_periph_release_locked(periph); 527 528 /* 529 * We reference the SIM lock directly here, instead of using 530 * cam_periph_unlock(). The reason is that the call to 531 * cam_periph_release_locked() above could result in the periph 532 * getting freed. If that is the case, dereferencing the periph 533 * with a cam_periph_unlock() call would cause a page fault. 534 * 535 * cam_periph_release() avoids this problem using the same method, 536 * but we're manually acquiring and dropping the lock here to 537 * protect the open count and avoid another lock acquisition and 538 * release. 539 */ 540 mtx_unlock(sim->mtx); 541 542 return(0); 543 } 544 545 static void 546 chstart(struct cam_periph *periph, union ccb *start_ccb) 547 { 548 struct ch_softc *softc; 549 550 softc = (struct ch_softc *)periph->softc; 551 552 switch (softc->state) { 553 case CH_STATE_NORMAL: 554 { 555 if (periph->immediate_priority <= periph->pinfo.priority){ 556 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 557 558 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 559 periph_links.sle); 560 periph->immediate_priority = CAM_PRIORITY_NONE; 561 wakeup(&periph->ccb_list); 562 } 563 break; 564 } 565 case CH_STATE_PROBE: 566 { 567 int mode_buffer_len; 568 void *mode_buffer; 569 570 /* 571 * Include the block descriptor when calculating the mode 572 * buffer length, 573 */ 574 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 575 sizeof(struct scsi_mode_blk_desc) + 576 sizeof(struct page_element_address_assignment); 577 578 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 579 580 if (mode_buffer == NULL) { 581 printf("chstart: couldn't malloc mode sense data\n"); 582 break; 583 } 584 bzero(mode_buffer, mode_buffer_len); 585 586 /* 587 * Get the element address assignment page. 588 */ 589 scsi_mode_sense(&start_ccb->csio, 590 /* retries */ 1, 591 /* cbfcnp */ chdone, 592 /* tag_action */ MSG_SIMPLE_Q_TAG, 593 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 594 FALSE : TRUE, 595 /* page_code */ SMS_PAGE_CTRL_CURRENT, 596 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 597 /* param_buf */ (u_int8_t *)mode_buffer, 598 /* param_len */ mode_buffer_len, 599 /* sense_len */ SSD_FULL_SIZE, 600 /* timeout */ CH_TIMEOUT_MODE_SENSE); 601 602 start_ccb->ccb_h.ccb_bp = NULL; 603 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 604 xpt_action(start_ccb); 605 break; 606 } 607 } 608 } 609 610 static void 611 chdone(struct cam_periph *periph, union ccb *done_ccb) 612 { 613 struct ch_softc *softc; 614 struct ccb_scsiio *csio; 615 616 softc = (struct ch_softc *)periph->softc; 617 csio = &done_ccb->csio; 618 619 switch(done_ccb->ccb_h.ccb_state) { 620 case CH_CCB_PROBE: 621 { 622 struct scsi_mode_header_6 *mode_header; 623 struct page_element_address_assignment *ea; 624 char announce_buf[80]; 625 626 627 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 628 629 ea = (struct page_element_address_assignment *) 630 find_mode_page_6(mode_header); 631 632 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 633 634 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 635 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 636 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 637 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 638 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 639 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 640 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 641 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 642 softc->sc_picker = softc->sc_firsts[CHET_MT]; 643 644 #define PLURAL(c) (c) == 1 ? "" : "s" 645 snprintf(announce_buf, sizeof(announce_buf), 646 "%d slot%s, %d drive%s, " 647 "%d picker%s, %d portal%s", 648 softc->sc_counts[CHET_ST], 649 PLURAL(softc->sc_counts[CHET_ST]), 650 softc->sc_counts[CHET_DT], 651 PLURAL(softc->sc_counts[CHET_DT]), 652 softc->sc_counts[CHET_MT], 653 PLURAL(softc->sc_counts[CHET_MT]), 654 softc->sc_counts[CHET_IE], 655 PLURAL(softc->sc_counts[CHET_IE])); 656 #undef PLURAL 657 } else { 658 int error; 659 660 error = cherror(done_ccb, CAM_RETRY_SELTO, 661 SF_RETRY_UA | SF_NO_PRINT); 662 /* 663 * Retry any UNIT ATTENTION type errors. They 664 * are expected at boot. 665 */ 666 if (error == ERESTART) { 667 /* 668 * A retry was scheuled, so 669 * just return. 670 */ 671 return; 672 } else if (error != 0) { 673 int retry_scheduled; 674 struct scsi_mode_sense_6 *sms; 675 676 sms = (struct scsi_mode_sense_6 *) 677 done_ccb->csio.cdb_io.cdb_bytes; 678 679 /* 680 * Check to see if block descriptors were 681 * disabled. Some devices don't like that. 682 * We're taking advantage of the fact that 683 * the first few bytes of the 6 and 10 byte 684 * mode sense commands are the same. If 685 * block descriptors were disabled, enable 686 * them and re-send the command. 687 */ 688 if (sms->byte2 & SMS_DBD) { 689 sms->byte2 &= ~SMS_DBD; 690 xpt_action(done_ccb); 691 softc->quirks |= CH_Q_NO_DBD; 692 retry_scheduled = 1; 693 } else 694 retry_scheduled = 0; 695 696 /* Don't wedge this device's queue */ 697 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 698 cam_release_devq(done_ccb->ccb_h.path, 699 /*relsim_flags*/0, 700 /*reduction*/0, 701 /*timeout*/0, 702 /*getcount_only*/0); 703 704 if (retry_scheduled) 705 return; 706 707 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 708 == CAM_SCSI_STATUS_ERROR) 709 scsi_sense_print(&done_ccb->csio); 710 else { 711 xpt_print(periph->path, 712 "got CAM status %#x\n", 713 done_ccb->ccb_h.status); 714 } 715 xpt_print(periph->path, "fatal error, failed " 716 "to attach to device\n"); 717 718 cam_periph_invalidate(periph); 719 720 announce_buf[0] = '\0'; 721 } 722 } 723 if (announce_buf[0] != '\0') { 724 xpt_announce_periph(periph, announce_buf); 725 xpt_announce_quirks(periph, softc->quirks, 726 CH_Q_BIT_STRING); 727 } 728 softc->state = CH_STATE_NORMAL; 729 free(mode_header, M_SCSICH); 730 /* 731 * Since our peripheral may be invalidated by an error 732 * above or an external event, we must release our CCB 733 * before releasing the probe lock on the peripheral. 734 * The peripheral will only go away once the last lock 735 * is removed, and we need it around for the CCB release 736 * operation. 737 */ 738 xpt_release_ccb(done_ccb); 739 cam_periph_unhold(periph); 740 return; 741 } 742 case CH_CCB_WAITING: 743 { 744 /* Caller will release the CCB */ 745 wakeup(&done_ccb->ccb_h.cbfcnp); 746 return; 747 } 748 default: 749 break; 750 } 751 xpt_release_ccb(done_ccb); 752 } 753 754 static int 755 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 756 { 757 struct ch_softc *softc; 758 struct cam_periph *periph; 759 760 periph = xpt_path_periph(ccb->ccb_h.path); 761 softc = (struct ch_softc *)periph->softc; 762 763 return (cam_periph_error(ccb, cam_flags, sense_flags, 764 &softc->saved_ccb)); 765 } 766 767 static int 768 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 769 { 770 struct cam_periph *periph; 771 struct ch_softc *softc; 772 int error; 773 774 periph = (struct cam_periph *)dev->si_drv1; 775 if (periph == NULL) 776 return(ENXIO); 777 778 cam_periph_lock(periph); 779 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 780 781 softc = (struct ch_softc *)periph->softc; 782 783 error = 0; 784 785 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 786 ("trying to do ioctl %#lx\n", cmd)); 787 788 /* 789 * If this command can change the device's state, we must 790 * have the device open for writing. 791 */ 792 switch (cmd) { 793 case CHIOGPICKER: 794 case CHIOGPARAMS: 795 case OCHIOGSTATUS: 796 case CHIOGSTATUS: 797 break; 798 799 default: 800 if ((flag & FWRITE) == 0) { 801 cam_periph_unlock(periph); 802 return (EBADF); 803 } 804 } 805 806 switch (cmd) { 807 case CHIOMOVE: 808 error = chmove(periph, (struct changer_move *)addr); 809 break; 810 811 case CHIOEXCHANGE: 812 error = chexchange(periph, (struct changer_exchange *)addr); 813 break; 814 815 case CHIOPOSITION: 816 error = chposition(periph, (struct changer_position *)addr); 817 break; 818 819 case CHIOGPICKER: 820 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 821 break; 822 823 case CHIOSPICKER: 824 { 825 int new_picker = *(int *)addr; 826 827 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) { 828 error = EINVAL; 829 break; 830 } 831 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 832 break; 833 } 834 case CHIOGPARAMS: 835 { 836 struct changer_params *cp = (struct changer_params *)addr; 837 838 cp->cp_npickers = softc->sc_counts[CHET_MT]; 839 cp->cp_nslots = softc->sc_counts[CHET_ST]; 840 cp->cp_nportals = softc->sc_counts[CHET_IE]; 841 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 842 break; 843 } 844 case CHIOIELEM: 845 error = chielem(periph, *(unsigned int *)addr); 846 break; 847 848 case OCHIOGSTATUS: 849 { 850 error = chgetelemstatus(periph, SCSI_REV_2, cmd, 851 (struct changer_element_status_request *)addr); 852 break; 853 } 854 855 case CHIOGSTATUS: 856 { 857 int scsi_version; 858 859 scsi_version = chscsiversion(periph); 860 if (scsi_version >= SCSI_REV_0) { 861 error = chgetelemstatus(periph, scsi_version, cmd, 862 (struct changer_element_status_request *)addr); 863 } 864 else { /* unable to determine the SCSI version */ 865 cam_periph_unlock(periph); 866 return (ENXIO); 867 } 868 break; 869 } 870 871 case CHIOSETVOLTAG: 872 { 873 error = chsetvoltag(periph, 874 (struct changer_set_voltag_request *) addr); 875 break; 876 } 877 878 /* Implement prevent/allow? */ 879 880 default: 881 error = cam_periph_ioctl(periph, cmd, addr, cherror); 882 break; 883 } 884 885 cam_periph_unlock(periph); 886 return (error); 887 } 888 889 static int 890 chmove(struct cam_periph *periph, struct changer_move *cm) 891 { 892 struct ch_softc *softc; 893 u_int16_t fromelem, toelem; 894 union ccb *ccb; 895 int error; 896 897 error = 0; 898 softc = (struct ch_softc *)periph->softc; 899 900 /* 901 * Check arguments. 902 */ 903 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 904 return (EINVAL); 905 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 906 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 907 return (ENODEV); 908 909 /* 910 * Check the request against the changer's capabilities. 911 */ 912 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 913 return (ENODEV); 914 915 /* 916 * Calculate the source and destination elements. 917 */ 918 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 919 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 920 921 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 922 923 scsi_move_medium(&ccb->csio, 924 /* retries */ 1, 925 /* cbfcnp */ chdone, 926 /* tag_action */ MSG_SIMPLE_Q_TAG, 927 /* tea */ softc->sc_picker, 928 /* src */ fromelem, 929 /* dst */ toelem, 930 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 931 /* sense_len */ SSD_FULL_SIZE, 932 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 933 934 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 935 /*sense_flags*/ SF_RETRY_UA, 936 softc->device_stats); 937 938 xpt_release_ccb(ccb); 939 940 return(error); 941 } 942 943 static int 944 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 945 { 946 struct ch_softc *softc; 947 u_int16_t src, dst1, dst2; 948 union ccb *ccb; 949 int error; 950 951 error = 0; 952 softc = (struct ch_softc *)periph->softc; 953 /* 954 * Check arguments. 955 */ 956 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 957 (ce->ce_sdsttype > CHET_DT)) 958 return (EINVAL); 959 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 960 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 961 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 962 return (ENODEV); 963 964 /* 965 * Check the request against the changer's capabilities. 966 */ 967 if (((softc->sc_exchangemask[ce->ce_srctype] & 968 (1 << ce->ce_fdsttype)) == 0) || 969 ((softc->sc_exchangemask[ce->ce_fdsttype] & 970 (1 << ce->ce_sdsttype)) == 0)) 971 return (ENODEV); 972 973 /* 974 * Calculate the source and destination elements. 975 */ 976 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 977 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 978 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 979 980 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 981 982 scsi_exchange_medium(&ccb->csio, 983 /* retries */ 1, 984 /* cbfcnp */ chdone, 985 /* tag_action */ MSG_SIMPLE_Q_TAG, 986 /* tea */ softc->sc_picker, 987 /* src */ src, 988 /* dst1 */ dst1, 989 /* dst2 */ dst2, 990 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 991 TRUE : FALSE, 992 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 993 TRUE : FALSE, 994 /* sense_len */ SSD_FULL_SIZE, 995 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 996 997 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 998 /*sense_flags*/ SF_RETRY_UA, 999 softc->device_stats); 1000 1001 xpt_release_ccb(ccb); 1002 1003 return(error); 1004 } 1005 1006 static int 1007 chposition(struct cam_periph *periph, struct changer_position *cp) 1008 { 1009 struct ch_softc *softc; 1010 u_int16_t dst; 1011 union ccb *ccb; 1012 int error; 1013 1014 error = 0; 1015 softc = (struct ch_softc *)periph->softc; 1016 1017 /* 1018 * Check arguments. 1019 */ 1020 if (cp->cp_type > CHET_DT) 1021 return (EINVAL); 1022 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 1023 return (ENODEV); 1024 1025 /* 1026 * Calculate the destination element. 1027 */ 1028 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 1029 1030 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1031 1032 scsi_position_to_element(&ccb->csio, 1033 /* retries */ 1, 1034 /* cbfcnp */ chdone, 1035 /* tag_action */ MSG_SIMPLE_Q_TAG, 1036 /* tea */ softc->sc_picker, 1037 /* dst */ dst, 1038 /* invert */ (cp->cp_flags & CP_INVERT) ? 1039 TRUE : FALSE, 1040 /* sense_len */ SSD_FULL_SIZE, 1041 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 1042 1043 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1044 /*sense_flags*/ SF_RETRY_UA, 1045 softc->device_stats); 1046 1047 xpt_release_ccb(ccb); 1048 1049 return(error); 1050 } 1051 1052 /* 1053 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 1054 * to host native byte order in the volume serial number. The volume 1055 * label as returned by the changer is transferred to user mode as 1056 * nul-terminated string. Volume labels are truncated at the first 1057 * space, as suggested by SCSI-2. 1058 */ 1059 static void 1060 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 1061 { 1062 int i; 1063 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 1064 char c = voltag->vif[i]; 1065 if (c && c != ' ') 1066 uvoltag->cv_volid[i] = c; 1067 else 1068 break; 1069 } 1070 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 1071 } 1072 1073 /* 1074 * Copy an element status descriptor to a user-mode 1075 * changer_element_status structure. 1076 */ 1077 static void 1078 copy_element_status(struct ch_softc *softc, 1079 u_int16_t flags, 1080 struct read_element_status_descriptor *desc, 1081 struct changer_element_status *ces, 1082 int scsi_version) 1083 { 1084 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1085 u_int16_t et; 1086 struct volume_tag *pvol_tag = NULL, *avol_tag = NULL; 1087 struct read_element_status_device_id *devid = NULL; 1088 1089 ces->ces_int_addr = eaddr; 1090 /* set up logical address in element status */ 1091 for (et = CHET_MT; et <= CHET_DT; et++) { 1092 if ((softc->sc_firsts[et] <= eaddr) 1093 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1094 > eaddr)) { 1095 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1096 ces->ces_type = et; 1097 break; 1098 } 1099 } 1100 1101 ces->ces_flags = desc->flags1; 1102 1103 ces->ces_sensecode = desc->sense_code; 1104 ces->ces_sensequal = desc->sense_qual; 1105 1106 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1107 ces->ces_flags |= CES_INVERT; 1108 1109 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1110 1111 eaddr = scsi_2btoul(desc->ssea); 1112 1113 /* convert source address to logical format */ 1114 for (et = CHET_MT; et <= CHET_DT; et++) { 1115 if ((softc->sc_firsts[et] <= eaddr) 1116 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1117 > eaddr)) { 1118 ces->ces_source_addr = 1119 eaddr - softc->sc_firsts[et]; 1120 ces->ces_source_type = et; 1121 ces->ces_flags |= CES_SOURCE_VALID; 1122 break; 1123 } 1124 } 1125 1126 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1127 printf("ch: warning: could not map element source " 1128 "address %ud to a valid element type\n", 1129 eaddr); 1130 } 1131 1132 /* 1133 * pvoltag and avoltag are common between SCSI-2 and later versions 1134 */ 1135 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1136 pvol_tag = &desc->voltag_devid.pvoltag; 1137 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1138 avol_tag = (flags & READ_ELEMENT_STATUS_PVOLTAG) ? 1139 &desc->voltag_devid.voltag[1] :&desc->voltag_devid.pvoltag; 1140 /* 1141 * For SCSI-3 and later, element status can carry designator and 1142 * other information. 1143 */ 1144 if (scsi_version >= SCSI_REV_SPC) { 1145 if ((flags & READ_ELEMENT_STATUS_PVOLTAG) ^ 1146 (flags & READ_ELEMENT_STATUS_AVOLTAG)) 1147 devid = &desc->voltag_devid.pvol_and_devid.devid; 1148 else if (!(flags & READ_ELEMENT_STATUS_PVOLTAG) && 1149 !(flags & READ_ELEMENT_STATUS_AVOLTAG)) 1150 devid = &desc->voltag_devid.devid; 1151 else /* Have both PVOLTAG and AVOLTAG */ 1152 devid = &desc->voltag_devid.vol_tags_and_devid.devid; 1153 } 1154 1155 if (pvol_tag) 1156 copy_voltag(&(ces->ces_pvoltag), pvol_tag); 1157 if (avol_tag) 1158 copy_voltag(&(ces->ces_pvoltag), avol_tag); 1159 if (devid != NULL) { 1160 if (devid->designator_length > 0) { 1161 bcopy((void *)devid->designator, 1162 (void *)ces->ces_designator, 1163 devid->designator_length); 1164 ces->ces_designator_length = devid->designator_length; 1165 /* 1166 * Make sure we are always NUL terminated. The 1167 * This won't matter for the binary code set, 1168 * since the user will only pay attention to the 1169 * length field. 1170 */ 1171 ces->ces_designator[devid->designator_length]= '\0'; 1172 } 1173 if (devid->piv_assoc_designator_type & 1174 READ_ELEMENT_STATUS_PIV_SET) { 1175 ces->ces_flags |= CES_PIV; 1176 ces->ces_protocol_id = 1177 READ_ELEMENT_STATUS_PROTOCOL_ID( 1178 devid->prot_code_set); 1179 } 1180 ces->ces_code_set = 1181 READ_ELEMENT_STATUS_CODE_SET(devid->prot_code_set); 1182 ces->ces_assoc = READ_ELEMENT_STATUS_ASSOCIATION( 1183 devid->piv_assoc_designator_type); 1184 ces->ces_designator_type = READ_ELEMENT_STATUS_DESIGNATOR_TYPE( 1185 devid->piv_assoc_designator_type); 1186 } else if (scsi_version > SCSI_REV_2) { 1187 /* SCSI-SPC and No devid, no designator */ 1188 ces->ces_designator_length = 0; 1189 ces->ces_designator[0] = '\0'; 1190 ces->ces_protocol_id = CES_PROTOCOL_ID_FCP_4; 1191 } 1192 1193 if (scsi_version <= SCSI_REV_2) { 1194 if (desc->dt_or_obsolete.scsi_2.dt_scsi_flags & 1195 READ_ELEMENT_STATUS_DT_IDVALID) { 1196 ces->ces_flags |= CES_SCSIID_VALID; 1197 ces->ces_scsi_id = 1198 desc->dt_or_obsolete.scsi_2.dt_scsi_addr; 1199 } 1200 1201 if (desc->dt_or_obsolete.scsi_2.dt_scsi_addr & 1202 READ_ELEMENT_STATUS_DT_LUVALID) { 1203 ces->ces_flags |= CES_LUN_VALID; 1204 ces->ces_scsi_lun = 1205 desc->dt_or_obsolete.scsi_2.dt_scsi_flags & 1206 READ_ELEMENT_STATUS_DT_LUNMASK; 1207 } 1208 } 1209 } 1210 1211 static int 1212 chgetelemstatus(struct cam_periph *periph, int scsi_version, u_long cmd, 1213 struct changer_element_status_request *cesr) 1214 { 1215 struct read_element_status_header *st_hdr; 1216 struct read_element_status_page_header *pg_hdr; 1217 struct read_element_status_descriptor *desc; 1218 caddr_t data = NULL; 1219 size_t size, desclen; 1220 int avail, i, error = 0; 1221 int curdata, dvcid, sense_flags; 1222 int try_no_dvcid = 0; 1223 struct changer_element_status *user_data = NULL; 1224 struct ch_softc *softc; 1225 union ccb *ccb; 1226 int chet = cesr->cesr_element_type; 1227 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1228 1229 softc = (struct ch_softc *)periph->softc; 1230 1231 /* perform argument checking */ 1232 1233 /* 1234 * Perform a range check on the cesr_element_{base,count} 1235 * request argument fields. 1236 */ 1237 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1238 || (cesr->cesr_element_base + cesr->cesr_element_count) 1239 > softc->sc_counts[chet]) 1240 return (EINVAL); 1241 1242 /* 1243 * Request one descriptor for the given element type. This 1244 * is used to determine the size of the descriptor so that 1245 * we can allocate enough storage for all of them. We assume 1246 * that the first one can fit into 1k. 1247 */ 1248 cam_periph_unlock(periph); 1249 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 1250 1251 cam_periph_lock(periph); 1252 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1253 1254 sense_flags = SF_RETRY_UA; 1255 if (softc->quirks & CH_Q_NO_DVCID) { 1256 dvcid = 0; 1257 curdata = 0; 1258 } else { 1259 dvcid = 1; 1260 curdata = 1; 1261 /* 1262 * Don't print anything for an Illegal Request, because 1263 * these flags can cause some changers to complain. We'll 1264 * retry without them if we get an error. 1265 */ 1266 sense_flags |= SF_QUIET_IR; 1267 } 1268 1269 retry_einval: 1270 1271 scsi_read_element_status(&ccb->csio, 1272 /* retries */ 1, 1273 /* cbfcnp */ chdone, 1274 /* tag_action */ MSG_SIMPLE_Q_TAG, 1275 /* voltag */ want_voltags, 1276 /* sea */ softc->sc_firsts[chet], 1277 /* curdata */ curdata, 1278 /* dvcid */ dvcid, 1279 /* count */ 1, 1280 /* data_ptr */ data, 1281 /* dxfer_len */ 1024, 1282 /* sense_len */ SSD_FULL_SIZE, 1283 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1284 1285 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1286 /*sense_flags*/ sense_flags, 1287 softc->device_stats); 1288 1289 /* 1290 * An Illegal Request sense key (only used if there is no asc/ascq) 1291 * or 0x24,0x00 for an ASC/ASCQ both map to EINVAL. If dvcid or 1292 * curdata are set (we set both or neither), try turning them off 1293 * and see if the command is successful. 1294 */ 1295 if ((error == EINVAL) 1296 && (dvcid || curdata)) { 1297 dvcid = 0; 1298 curdata = 0; 1299 error = 0; 1300 /* At this point we want to report any Illegal Request */ 1301 sense_flags &= ~SF_QUIET_IR; 1302 try_no_dvcid = 1; 1303 goto retry_einval; 1304 } 1305 1306 /* 1307 * In this case, we tried a read element status with dvcid and 1308 * curdata set, and it failed. We retried without those bits, and 1309 * it succeeded. Suggest to the user that he set a quirk, so we 1310 * don't go through the retry process the first time in the future. 1311 * This should only happen on changers that claim SCSI-3 or higher, 1312 * but don't support these bits. 1313 */ 1314 if ((try_no_dvcid != 0) 1315 && (error == 0)) 1316 softc->quirks |= CH_Q_NO_DVCID; 1317 1318 if (error) 1319 goto done; 1320 cam_periph_unlock(periph); 1321 1322 st_hdr = (struct read_element_status_header *)data; 1323 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1324 sizeof(struct read_element_status_header)); 1325 desclen = scsi_2btoul(pg_hdr->edl); 1326 1327 size = sizeof(struct read_element_status_header) + 1328 sizeof(struct read_element_status_page_header) + 1329 (desclen * cesr->cesr_element_count); 1330 /* 1331 * Reallocate storage for descriptors and get them from the 1332 * device. 1333 */ 1334 free(data, M_DEVBUF); 1335 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 1336 1337 cam_periph_lock(periph); 1338 scsi_read_element_status(&ccb->csio, 1339 /* retries */ 1, 1340 /* cbfcnp */ chdone, 1341 /* tag_action */ MSG_SIMPLE_Q_TAG, 1342 /* voltag */ want_voltags, 1343 /* sea */ softc->sc_firsts[chet] 1344 + cesr->cesr_element_base, 1345 /* curdata */ curdata, 1346 /* dvcid */ dvcid, 1347 /* count */ cesr->cesr_element_count, 1348 /* data_ptr */ data, 1349 /* dxfer_len */ size, 1350 /* sense_len */ SSD_FULL_SIZE, 1351 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1352 1353 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1354 /*sense_flags*/ SF_RETRY_UA, 1355 softc->device_stats); 1356 1357 if (error) 1358 goto done; 1359 cam_periph_unlock(periph); 1360 1361 /* 1362 * Fill in the user status array. 1363 */ 1364 st_hdr = (struct read_element_status_header *)data; 1365 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1366 sizeof(struct read_element_status_header)); 1367 avail = scsi_2btoul(st_hdr->count); 1368 1369 if (avail != cesr->cesr_element_count) { 1370 xpt_print(periph->path, 1371 "warning, READ ELEMENT STATUS avail != count\n"); 1372 } 1373 1374 user_data = (struct changer_element_status *) 1375 malloc(avail * sizeof(struct changer_element_status), 1376 M_DEVBUF, M_WAITOK | M_ZERO); 1377 1378 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1379 sizeof(struct read_element_status_header) + 1380 sizeof(struct read_element_status_page_header)); 1381 /* 1382 * Set up the individual element status structures 1383 */ 1384 for (i = 0; i < avail; ++i) { 1385 struct changer_element_status *ces; 1386 1387 /* 1388 * In the changer_element_status structure, fields from 1389 * the beginning to the field of ces_scsi_lun are common 1390 * between SCSI-2 and SCSI-3, while all the rest are new 1391 * from SCSI-3. In order to maintain backward compatibility 1392 * of the chio command, the ces pointer, below, is computed 1393 * such that it lines up with the structure boundary 1394 * corresponding to the SCSI version. 1395 */ 1396 ces = cmd == OCHIOGSTATUS ? 1397 (struct changer_element_status *) 1398 ((unsigned char *)user_data + i * 1399 (offsetof(struct changer_element_status,ces_scsi_lun)+1)): 1400 &user_data[i]; 1401 1402 copy_element_status(softc, pg_hdr->flags, desc, 1403 ces, scsi_version); 1404 1405 desc = (struct read_element_status_descriptor *) 1406 ((unsigned char *)desc + desclen); 1407 } 1408 1409 /* Copy element status structures out to userspace. */ 1410 if (cmd == OCHIOGSTATUS) 1411 error = copyout(user_data, 1412 cesr->cesr_element_status, 1413 avail* (offsetof(struct changer_element_status, 1414 ces_scsi_lun) + 1)); 1415 else 1416 error = copyout(user_data, 1417 cesr->cesr_element_status, 1418 avail * sizeof(struct changer_element_status)); 1419 1420 cam_periph_lock(periph); 1421 1422 done: 1423 xpt_release_ccb(ccb); 1424 1425 if (data != NULL) 1426 free(data, M_DEVBUF); 1427 if (user_data != NULL) 1428 free(user_data, M_DEVBUF); 1429 1430 return (error); 1431 } 1432 1433 static int 1434 chielem(struct cam_periph *periph, 1435 unsigned int timeout) 1436 { 1437 union ccb *ccb; 1438 struct ch_softc *softc; 1439 int error; 1440 1441 if (!timeout) { 1442 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1443 } else { 1444 timeout *= 1000; 1445 } 1446 1447 error = 0; 1448 softc = (struct ch_softc *)periph->softc; 1449 1450 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1451 1452 scsi_initialize_element_status(&ccb->csio, 1453 /* retries */ 1, 1454 /* cbfcnp */ chdone, 1455 /* tag_action */ MSG_SIMPLE_Q_TAG, 1456 /* sense_len */ SSD_FULL_SIZE, 1457 /* timeout */ timeout); 1458 1459 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1460 /*sense_flags*/ SF_RETRY_UA, 1461 softc->device_stats); 1462 1463 xpt_release_ccb(ccb); 1464 1465 return(error); 1466 } 1467 1468 static int 1469 chsetvoltag(struct cam_periph *periph, 1470 struct changer_set_voltag_request *csvr) 1471 { 1472 union ccb *ccb; 1473 struct ch_softc *softc; 1474 u_int16_t ea; 1475 u_int8_t sac; 1476 struct scsi_send_volume_tag_parameters ssvtp; 1477 int error; 1478 int i; 1479 1480 error = 0; 1481 softc = (struct ch_softc *)periph->softc; 1482 1483 bzero(&ssvtp, sizeof(ssvtp)); 1484 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1485 ssvtp.vitf[i] = ' '; 1486 } 1487 1488 /* 1489 * Check arguments. 1490 */ 1491 if (csvr->csvr_type > CHET_DT) 1492 return EINVAL; 1493 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1494 return ENODEV; 1495 1496 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1497 1498 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1499 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1500 case CSVR_MODE_SET: 1501 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1502 break; 1503 case CSVR_MODE_REPLACE: 1504 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1505 break; 1506 case CSVR_MODE_CLEAR: 1507 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1508 break; 1509 default: 1510 error = EINVAL; 1511 goto out; 1512 } 1513 } else { 1514 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1515 case CSVR_MODE_SET: 1516 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1517 break; 1518 case CSVR_MODE_REPLACE: 1519 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1520 break; 1521 case CSVR_MODE_CLEAR: 1522 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1523 break; 1524 default: 1525 error = EINVAL; 1526 goto out; 1527 } 1528 } 1529 1530 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1531 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1532 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1533 1534 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1535 1536 scsi_send_volume_tag(&ccb->csio, 1537 /* retries */ 1, 1538 /* cbfcnp */ chdone, 1539 /* tag_action */ MSG_SIMPLE_Q_TAG, 1540 /* element_address */ ea, 1541 /* send_action_code */ sac, 1542 /* parameters */ &ssvtp, 1543 /* sense_len */ SSD_FULL_SIZE, 1544 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1545 1546 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1547 /*sense_flags*/ SF_RETRY_UA, 1548 softc->device_stats); 1549 1550 xpt_release_ccb(ccb); 1551 1552 out: 1553 return error; 1554 } 1555 1556 static int 1557 chgetparams(struct cam_periph *periph) 1558 { 1559 union ccb *ccb; 1560 struct ch_softc *softc; 1561 void *mode_buffer; 1562 int mode_buffer_len; 1563 struct page_element_address_assignment *ea; 1564 struct page_device_capabilities *cap; 1565 int error, from, dbd; 1566 u_int8_t *moves, *exchanges; 1567 1568 error = 0; 1569 1570 softc = (struct ch_softc *)periph->softc; 1571 1572 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1573 1574 /* 1575 * The scsi_mode_sense_data structure is just a convenience 1576 * structure that allows us to easily calculate the worst-case 1577 * storage size of the mode sense buffer. 1578 */ 1579 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1580 1581 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 1582 1583 if (mode_buffer == NULL) { 1584 printf("chgetparams: couldn't malloc mode sense data\n"); 1585 return(ENOSPC); 1586 } 1587 1588 bzero(mode_buffer, mode_buffer_len); 1589 1590 if (softc->quirks & CH_Q_NO_DBD) 1591 dbd = FALSE; 1592 else 1593 dbd = TRUE; 1594 1595 /* 1596 * Get the element address assignment page. 1597 */ 1598 scsi_mode_sense(&ccb->csio, 1599 /* retries */ 1, 1600 /* cbfcnp */ chdone, 1601 /* tag_action */ MSG_SIMPLE_Q_TAG, 1602 /* dbd */ dbd, 1603 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1604 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1605 /* param_buf */ (u_int8_t *)mode_buffer, 1606 /* param_len */ mode_buffer_len, 1607 /* sense_len */ SSD_FULL_SIZE, 1608 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1609 1610 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1611 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1612 softc->device_stats); 1613 1614 if (error) { 1615 if (dbd) { 1616 struct scsi_mode_sense_6 *sms; 1617 1618 sms = (struct scsi_mode_sense_6 *) 1619 ccb->csio.cdb_io.cdb_bytes; 1620 1621 sms->byte2 &= ~SMS_DBD; 1622 error = cam_periph_runccb(ccb, cherror, 1623 /*cam_flags*/ CAM_RETRY_SELTO, 1624 /*sense_flags*/ SF_RETRY_UA, 1625 softc->device_stats); 1626 } else { 1627 /* 1628 * Since we disabled sense printing above, print 1629 * out the sense here since we got an error. 1630 */ 1631 scsi_sense_print(&ccb->csio); 1632 } 1633 1634 if (error) { 1635 xpt_print(periph->path, 1636 "chgetparams: error getting element " 1637 "address page\n"); 1638 xpt_release_ccb(ccb); 1639 free(mode_buffer, M_SCSICH); 1640 return(error); 1641 } 1642 } 1643 1644 ea = (struct page_element_address_assignment *) 1645 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1646 1647 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1648 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1649 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1650 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1651 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1652 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1653 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1654 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1655 1656 bzero(mode_buffer, mode_buffer_len); 1657 1658 /* 1659 * Now get the device capabilities page. 1660 */ 1661 scsi_mode_sense(&ccb->csio, 1662 /* retries */ 1, 1663 /* cbfcnp */ chdone, 1664 /* tag_action */ MSG_SIMPLE_Q_TAG, 1665 /* dbd */ dbd, 1666 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1667 /* page */ CH_DEVICE_CAP_PAGE, 1668 /* param_buf */ (u_int8_t *)mode_buffer, 1669 /* param_len */ mode_buffer_len, 1670 /* sense_len */ SSD_FULL_SIZE, 1671 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1672 1673 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1674 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1675 softc->device_stats); 1676 1677 if (error) { 1678 if (dbd) { 1679 struct scsi_mode_sense_6 *sms; 1680 1681 sms = (struct scsi_mode_sense_6 *) 1682 ccb->csio.cdb_io.cdb_bytes; 1683 1684 sms->byte2 &= ~SMS_DBD; 1685 error = cam_periph_runccb(ccb, cherror, 1686 /*cam_flags*/ CAM_RETRY_SELTO, 1687 /*sense_flags*/ SF_RETRY_UA, 1688 softc->device_stats); 1689 } else { 1690 /* 1691 * Since we disabled sense printing above, print 1692 * out the sense here since we got an error. 1693 */ 1694 scsi_sense_print(&ccb->csio); 1695 } 1696 1697 if (error) { 1698 xpt_print(periph->path, 1699 "chgetparams: error getting device " 1700 "capabilities page\n"); 1701 xpt_release_ccb(ccb); 1702 free(mode_buffer, M_SCSICH); 1703 return(error); 1704 } 1705 } 1706 1707 xpt_release_ccb(ccb); 1708 1709 cap = (struct page_device_capabilities *) 1710 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1711 1712 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1713 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1714 moves = cap->move_from; 1715 exchanges = cap->exchange_with; 1716 for (from = CHET_MT; from <= CHET_MAX; ++from) { 1717 softc->sc_movemask[from] = moves[from]; 1718 softc->sc_exchangemask[from] = exchanges[from]; 1719 } 1720 1721 free(mode_buffer, M_SCSICH); 1722 1723 return(error); 1724 } 1725 1726 static int 1727 chscsiversion(struct cam_periph *periph) 1728 { 1729 struct scsi_inquiry_data *inq_data; 1730 struct ccb_getdev *cgd; 1731 int dev_scsi_version; 1732 struct cam_sim *sim; 1733 1734 sim = xpt_path_sim(periph->path); 1735 mtx_assert(sim->mtx, MA_OWNED); 1736 if ((cgd = (struct ccb_getdev *)xpt_alloc_ccb_nowait()) == NULL) 1737 return (-1); 1738 /* 1739 * Get the device information. 1740 */ 1741 xpt_setup_ccb(&cgd->ccb_h, 1742 periph->path, 1743 CAM_PRIORITY_NORMAL); 1744 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 1745 xpt_action((union ccb *)cgd); 1746 1747 if (cgd->ccb_h.status != CAM_REQ_CMP) { 1748 xpt_free_ccb((union ccb *)cgd); 1749 return -1; 1750 } 1751 1752 inq_data = &cgd->inq_data; 1753 dev_scsi_version = inq_data->version; 1754 xpt_free_ccb((union ccb *)cgd); 1755 1756 return dev_scsi_version; 1757 } 1758 1759 void 1760 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1761 void (*cbfcnp)(struct cam_periph *, union ccb *), 1762 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1763 u_int32_t dst, int invert, u_int8_t sense_len, 1764 u_int32_t timeout) 1765 { 1766 struct scsi_move_medium *scsi_cmd; 1767 1768 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1769 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1770 1771 scsi_cmd->opcode = MOVE_MEDIUM; 1772 1773 scsi_ulto2b(tea, scsi_cmd->tea); 1774 scsi_ulto2b(src, scsi_cmd->src); 1775 scsi_ulto2b(dst, scsi_cmd->dst); 1776 1777 if (invert) 1778 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1779 1780 cam_fill_csio(csio, 1781 retries, 1782 cbfcnp, 1783 /*flags*/ CAM_DIR_NONE, 1784 tag_action, 1785 /*data_ptr*/ NULL, 1786 /*dxfer_len*/ 0, 1787 sense_len, 1788 sizeof(*scsi_cmd), 1789 timeout); 1790 } 1791 1792 void 1793 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1794 void (*cbfcnp)(struct cam_periph *, union ccb *), 1795 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1796 u_int32_t dst1, u_int32_t dst2, int invert1, 1797 int invert2, u_int8_t sense_len, u_int32_t timeout) 1798 { 1799 struct scsi_exchange_medium *scsi_cmd; 1800 1801 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1802 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1803 1804 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1805 1806 scsi_ulto2b(tea, scsi_cmd->tea); 1807 scsi_ulto2b(src, scsi_cmd->src); 1808 scsi_ulto2b(dst1, scsi_cmd->fdst); 1809 scsi_ulto2b(dst2, scsi_cmd->sdst); 1810 1811 if (invert1) 1812 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1813 1814 if (invert2) 1815 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1816 1817 cam_fill_csio(csio, 1818 retries, 1819 cbfcnp, 1820 /*flags*/ CAM_DIR_NONE, 1821 tag_action, 1822 /*data_ptr*/ NULL, 1823 /*dxfer_len*/ 0, 1824 sense_len, 1825 sizeof(*scsi_cmd), 1826 timeout); 1827 } 1828 1829 void 1830 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1831 void (*cbfcnp)(struct cam_periph *, union ccb *), 1832 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1833 int invert, u_int8_t sense_len, u_int32_t timeout) 1834 { 1835 struct scsi_position_to_element *scsi_cmd; 1836 1837 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1838 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1839 1840 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1841 1842 scsi_ulto2b(tea, scsi_cmd->tea); 1843 scsi_ulto2b(dst, scsi_cmd->dst); 1844 1845 if (invert) 1846 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1847 1848 cam_fill_csio(csio, 1849 retries, 1850 cbfcnp, 1851 /*flags*/ CAM_DIR_NONE, 1852 tag_action, 1853 /*data_ptr*/ NULL, 1854 /*dxfer_len*/ 0, 1855 sense_len, 1856 sizeof(*scsi_cmd), 1857 timeout); 1858 } 1859 1860 void 1861 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1862 void (*cbfcnp)(struct cam_periph *, union ccb *), 1863 u_int8_t tag_action, int voltag, u_int32_t sea, 1864 int curdata, int dvcid, 1865 u_int32_t count, u_int8_t *data_ptr, 1866 u_int32_t dxfer_len, u_int8_t sense_len, 1867 u_int32_t timeout) 1868 { 1869 struct scsi_read_element_status *scsi_cmd; 1870 1871 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1872 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1873 1874 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1875 1876 scsi_ulto2b(sea, scsi_cmd->sea); 1877 scsi_ulto2b(count, scsi_cmd->count); 1878 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1879 if (dvcid) 1880 scsi_cmd->flags |= READ_ELEMENT_STATUS_DVCID; 1881 if (curdata) 1882 scsi_cmd->flags |= READ_ELEMENT_STATUS_CURDATA; 1883 1884 if (voltag) 1885 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1886 1887 cam_fill_csio(csio, 1888 retries, 1889 cbfcnp, 1890 /*flags*/ CAM_DIR_IN, 1891 tag_action, 1892 data_ptr, 1893 dxfer_len, 1894 sense_len, 1895 sizeof(*scsi_cmd), 1896 timeout); 1897 } 1898 1899 void 1900 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1901 void (*cbfcnp)(struct cam_periph *, union ccb *), 1902 u_int8_t tag_action, u_int8_t sense_len, 1903 u_int32_t timeout) 1904 { 1905 struct scsi_initialize_element_status *scsi_cmd; 1906 1907 scsi_cmd = (struct scsi_initialize_element_status *) 1908 &csio->cdb_io.cdb_bytes; 1909 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1910 1911 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1912 1913 cam_fill_csio(csio, 1914 retries, 1915 cbfcnp, 1916 /*flags*/ CAM_DIR_NONE, 1917 tag_action, 1918 /* data_ptr */ NULL, 1919 /* dxfer_len */ 0, 1920 sense_len, 1921 sizeof(*scsi_cmd), 1922 timeout); 1923 } 1924 1925 void 1926 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1927 void (*cbfcnp)(struct cam_periph *, union ccb *), 1928 u_int8_t tag_action, 1929 u_int16_t element_address, 1930 u_int8_t send_action_code, 1931 struct scsi_send_volume_tag_parameters *parameters, 1932 u_int8_t sense_len, u_int32_t timeout) 1933 { 1934 struct scsi_send_volume_tag *scsi_cmd; 1935 1936 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1937 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1938 1939 scsi_cmd->opcode = SEND_VOLUME_TAG; 1940 scsi_ulto2b(element_address, scsi_cmd->ea); 1941 scsi_cmd->sac = send_action_code; 1942 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1943 1944 cam_fill_csio(csio, 1945 retries, 1946 cbfcnp, 1947 /*flags*/ CAM_DIR_OUT, 1948 tag_action, 1949 /* data_ptr */ (u_int8_t *) parameters, 1950 sizeof(*parameters), 1951 sense_len, 1952 sizeof(*scsi_cmd), 1953 timeout); 1954 } 1955