Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/cam/scsi/scsi_ch.c
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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 = 10000; 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_FLAG_OPEN = 0x002 112 } ch_flags; 113 114 typedef enum { 115 CH_STATE_PROBE, 116 CH_STATE_NORMAL 117 } ch_state; 118 119 typedef enum { 120 CH_CCB_PROBE, 121 CH_CCB_WAITING 122 } ch_ccb_types; 123 124 typedef enum { 125 CH_Q_NONE = 0x00, 126 CH_Q_NO_DBD = 0x01 127 } ch_quirks; 128 129 #define ccb_state ppriv_field0 130 #define ccb_bp ppriv_ptr1 131 132 struct scsi_mode_sense_data { 133 struct scsi_mode_header_6 header; 134 struct scsi_mode_blk_desc blk_desc; 135 union { 136 struct page_element_address_assignment ea; 137 struct page_transport_geometry_parameters tg; 138 struct page_device_capabilities cap; 139 } pages; 140 }; 141 142 struct ch_softc { 143 ch_flags flags; 144 ch_state state; 145 ch_quirks quirks; 146 union ccb saved_ccb; 147 struct devstat *device_stats; 148 struct cdev *dev; 149 150 int sc_picker; /* current picker */ 151 152 /* 153 * The following information is obtained from the 154 * element address assignment page. 155 */ 156 int sc_firsts[CHET_MAX + 1]; /* firsts */ 157 int sc_counts[CHET_MAX + 1]; /* counts */ 158 159 /* 160 * The following mask defines the legal combinations 161 * of elements for the MOVE MEDIUM command. 162 */ 163 u_int8_t sc_movemask[CHET_MAX + 1]; 164 165 /* 166 * As above, but for EXCHANGE MEDIUM. 167 */ 168 u_int8_t sc_exchangemask[CHET_MAX + 1]; 169 170 /* 171 * Quirks; see below. XXX KDM not implemented yet 172 */ 173 int sc_settledelay; /* delay for settle */ 174 }; 175 176 static d_open_t chopen; 177 static d_close_t chclose; 178 static d_ioctl_t chioctl; 179 static periph_init_t chinit; 180 static periph_ctor_t chregister; 181 static periph_oninv_t choninvalidate; 182 static periph_dtor_t chcleanup; 183 static periph_start_t chstart; 184 static void chasync(void *callback_arg, u_int32_t code, 185 struct cam_path *path, void *arg); 186 static void chdone(struct cam_periph *periph, 187 union ccb *done_ccb); 188 static int cherror(union ccb *ccb, u_int32_t cam_flags, 189 u_int32_t sense_flags); 190 static int chmove(struct cam_periph *periph, 191 struct changer_move *cm); 192 static int chexchange(struct cam_periph *periph, 193 struct changer_exchange *ce); 194 static int chposition(struct cam_periph *periph, 195 struct changer_position *cp); 196 static int chgetelemstatus(struct cam_periph *periph, 197 struct changer_element_status_request *csr); 198 static int chsetvoltag(struct cam_periph *periph, 199 struct changer_set_voltag_request *csvr); 200 static int chielem(struct cam_periph *periph, 201 unsigned int timeout); 202 static int chgetparams(struct cam_periph *periph); 203 204 static struct periph_driver chdriver = 205 { 206 chinit, "ch", 207 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 208 }; 209 210 PERIPHDRIVER_DECLARE(ch, chdriver); 211 212 static struct cdevsw ch_cdevsw = { 213 .d_version = D_VERSION, 214 .d_flags = 0, 215 .d_open = chopen, 216 .d_close = chclose, 217 .d_ioctl = chioctl, 218 .d_name = "ch", 219 }; 220 221 MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers"); 222 223 static void 224 chinit(void) 225 { 226 cam_status status; 227 228 /* 229 * Install a global async callback. This callback will 230 * receive async callbacks like "new device found". 231 */ 232 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL); 233 234 if (status != CAM_REQ_CMP) { 235 printf("ch: Failed to attach master async callback " 236 "due to status 0x%x!\n", status); 237 } 238 } 239 240 static void 241 choninvalidate(struct cam_periph *periph) 242 { 243 struct ch_softc *softc; 244 245 softc = (struct ch_softc *)periph->softc; 246 247 /* 248 * De-register any async callbacks. 249 */ 250 xpt_register_async(0, chasync, periph, periph->path); 251 252 softc->flags |= CH_FLAG_INVALID; 253 254 xpt_print(periph->path, "lost device\n"); 255 256 } 257 258 static void 259 chcleanup(struct cam_periph *periph) 260 { 261 struct ch_softc *softc; 262 263 softc = (struct ch_softc *)periph->softc; 264 265 devstat_remove_entry(softc->device_stats); 266 destroy_dev(softc->dev); 267 xpt_print(periph->path, "removing device entry\n"); 268 free(softc, M_DEVBUF); 269 } 270 271 static void 272 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 273 { 274 struct cam_periph *periph; 275 276 periph = (struct cam_periph *)callback_arg; 277 278 switch(code) { 279 case AC_FOUND_DEVICE: 280 { 281 struct ccb_getdev *cgd; 282 cam_status status; 283 284 cgd = (struct ccb_getdev *)arg; 285 if (cgd == NULL) 286 break; 287 288 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 289 break; 290 291 /* 292 * Allocate a peripheral instance for 293 * this device and start the probe 294 * process. 295 */ 296 status = cam_periph_alloc(chregister, choninvalidate, 297 chcleanup, chstart, "ch", 298 CAM_PERIPH_BIO, cgd->ccb_h.path, 299 chasync, AC_FOUND_DEVICE, cgd); 300 301 if (status != CAM_REQ_CMP 302 && status != CAM_REQ_INPROG) 303 printf("chasync: Unable to probe new device " 304 "due to status 0x%x\n", status); 305 306 break; 307 308 } 309 default: 310 cam_periph_async(periph, code, path, arg); 311 break; 312 } 313 } 314 315 static cam_status 316 chregister(struct cam_periph *periph, void *arg) 317 { 318 struct ch_softc *softc; 319 struct ccb_getdev *cgd; 320 321 cgd = (struct ccb_getdev *)arg; 322 if (periph == NULL) { 323 printf("chregister: periph was NULL!!\n"); 324 return(CAM_REQ_CMP_ERR); 325 } 326 327 if (cgd == NULL) { 328 printf("chregister: no getdev CCB, can't register device\n"); 329 return(CAM_REQ_CMP_ERR); 330 } 331 332 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 333 334 if (softc == NULL) { 335 printf("chregister: Unable to probe new device. " 336 "Unable to allocate softc\n"); 337 return(CAM_REQ_CMP_ERR); 338 } 339 340 bzero(softc, sizeof(*softc)); 341 softc->state = CH_STATE_PROBE; 342 periph->softc = softc; 343 softc->quirks = CH_Q_NONE; 344 345 /* 346 * Changers don't have a blocksize, and obviously don't support 347 * tagged queueing. 348 */ 349 cam_periph_unlock(periph); 350 softc->device_stats = devstat_new_entry("ch", 351 periph->unit_number, 0, 352 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 353 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 354 DEVSTAT_PRIORITY_OTHER); 355 356 /* Register the device */ 357 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 358 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 359 periph->unit_number); 360 cam_periph_lock(periph); 361 softc->dev->si_drv1 = periph; 362 363 /* 364 * Add an async callback so that we get 365 * notified if this device goes away. 366 */ 367 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path); 368 369 /* 370 * Lock this periph until we are setup. 371 * This first call can't block 372 */ 373 (void)cam_periph_hold(periph, PRIBIO); 374 xpt_schedule(periph, /*priority*/5); 375 376 return(CAM_REQ_CMP); 377 } 378 379 static int 380 chopen(struct cdev *dev, int flags, int fmt, struct thread *td) 381 { 382 struct cam_periph *periph; 383 struct ch_softc *softc; 384 int error; 385 386 periph = (struct cam_periph *)dev->si_drv1; 387 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 388 return (ENXIO); 389 390 softc = (struct ch_softc *)periph->softc; 391 392 cam_periph_lock(periph); 393 394 if (softc->flags & CH_FLAG_INVALID) { 395 cam_periph_unlock(periph); 396 cam_periph_release(periph); 397 return(ENXIO); 398 } 399 400 if ((softc->flags & CH_FLAG_OPEN) == 0) 401 softc->flags |= CH_FLAG_OPEN; 402 else 403 cam_periph_release(periph); 404 405 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 406 cam_periph_unlock(periph); 407 cam_periph_release(periph); 408 return (error); 409 } 410 411 /* 412 * Load information about this changer device into the softc. 413 */ 414 if ((error = chgetparams(periph)) != 0) { 415 softc->flags &= ~CH_FLAG_OPEN; 416 cam_periph_unlock(periph); 417 cam_periph_release(periph); 418 return(error); 419 } 420 421 cam_periph_unhold(periph); 422 cam_periph_unlock(periph); 423 424 return(error); 425 } 426 427 static int 428 chclose(struct cdev *dev, int flag, int fmt, struct thread *td) 429 { 430 struct cam_periph *periph; 431 struct ch_softc *softc; 432 int error; 433 434 error = 0; 435 436 periph = (struct cam_periph *)dev->si_drv1; 437 if (periph == NULL) 438 return(ENXIO); 439 440 softc = (struct ch_softc *)periph->softc; 441 442 cam_periph_lock(periph); 443 444 softc->flags &= ~CH_FLAG_OPEN; 445 446 cam_periph_unlock(periph); 447 cam_periph_release(periph); 448 449 return(0); 450 } 451 452 static void 453 chstart(struct cam_periph *periph, union ccb *start_ccb) 454 { 455 struct ch_softc *softc; 456 457 softc = (struct ch_softc *)periph->softc; 458 459 switch (softc->state) { 460 case CH_STATE_NORMAL: 461 { 462 if (periph->immediate_priority <= periph->pinfo.priority){ 463 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 464 465 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 466 periph_links.sle); 467 periph->immediate_priority = CAM_PRIORITY_NONE; 468 wakeup(&periph->ccb_list); 469 } 470 break; 471 } 472 case CH_STATE_PROBE: 473 { 474 int mode_buffer_len; 475 void *mode_buffer; 476 477 /* 478 * Include the block descriptor when calculating the mode 479 * buffer length, 480 */ 481 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 482 sizeof(struct scsi_mode_blk_desc) + 483 sizeof(struct page_element_address_assignment); 484 485 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 486 487 if (mode_buffer == NULL) { 488 printf("chstart: couldn't malloc mode sense data\n"); 489 break; 490 } 491 bzero(mode_buffer, mode_buffer_len); 492 493 /* 494 * Get the element address assignment page. 495 */ 496 scsi_mode_sense(&start_ccb->csio, 497 /* retries */ 1, 498 /* cbfcnp */ chdone, 499 /* tag_action */ MSG_SIMPLE_Q_TAG, 500 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 501 FALSE : TRUE, 502 /* page_code */ SMS_PAGE_CTRL_CURRENT, 503 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 504 /* param_buf */ (u_int8_t *)mode_buffer, 505 /* param_len */ mode_buffer_len, 506 /* sense_len */ SSD_FULL_SIZE, 507 /* timeout */ CH_TIMEOUT_MODE_SENSE); 508 509 start_ccb->ccb_h.ccb_bp = NULL; 510 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 511 xpt_action(start_ccb); 512 break; 513 } 514 } 515 } 516 517 static void 518 chdone(struct cam_periph *periph, union ccb *done_ccb) 519 { 520 struct ch_softc *softc; 521 struct ccb_scsiio *csio; 522 523 softc = (struct ch_softc *)periph->softc; 524 csio = &done_ccb->csio; 525 526 switch(done_ccb->ccb_h.ccb_state) { 527 case CH_CCB_PROBE: 528 { 529 struct scsi_mode_header_6 *mode_header; 530 struct page_element_address_assignment *ea; 531 char announce_buf[80]; 532 533 534 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 535 536 ea = (struct page_element_address_assignment *) 537 find_mode_page_6(mode_header); 538 539 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 540 541 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 542 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 543 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 544 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 545 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 546 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 547 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 548 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 549 softc->sc_picker = softc->sc_firsts[CHET_MT]; 550 551 #define PLURAL(c) (c) == 1 ? "" : "s" 552 snprintf(announce_buf, sizeof(announce_buf), 553 "%d slot%s, %d drive%s, " 554 "%d picker%s, %d portal%s", 555 softc->sc_counts[CHET_ST], 556 PLURAL(softc->sc_counts[CHET_ST]), 557 softc->sc_counts[CHET_DT], 558 PLURAL(softc->sc_counts[CHET_DT]), 559 softc->sc_counts[CHET_MT], 560 PLURAL(softc->sc_counts[CHET_MT]), 561 softc->sc_counts[CHET_IE], 562 PLURAL(softc->sc_counts[CHET_IE])); 563 #undef PLURAL 564 } else { 565 int error; 566 567 error = cherror(done_ccb, CAM_RETRY_SELTO, 568 SF_RETRY_UA | SF_NO_PRINT); 569 /* 570 * Retry any UNIT ATTENTION type errors. They 571 * are expected at boot. 572 */ 573 if (error == ERESTART) { 574 /* 575 * A retry was scheuled, so 576 * just return. 577 */ 578 return; 579 } else if (error != 0) { 580 int retry_scheduled; 581 struct scsi_mode_sense_6 *sms; 582 583 sms = (struct scsi_mode_sense_6 *) 584 done_ccb->csio.cdb_io.cdb_bytes; 585 586 /* 587 * Check to see if block descriptors were 588 * disabled. Some devices don't like that. 589 * We're taking advantage of the fact that 590 * the first few bytes of the 6 and 10 byte 591 * mode sense commands are the same. If 592 * block descriptors were disabled, enable 593 * them and re-send the command. 594 */ 595 if (sms->byte2 & SMS_DBD) { 596 sms->byte2 &= ~SMS_DBD; 597 xpt_action(done_ccb); 598 softc->quirks |= CH_Q_NO_DBD; 599 retry_scheduled = 1; 600 } else 601 retry_scheduled = 0; 602 603 /* Don't wedge this device's queue */ 604 cam_release_devq(done_ccb->ccb_h.path, 605 /*relsim_flags*/0, 606 /*reduction*/0, 607 /*timeout*/0, 608 /*getcount_only*/0); 609 610 if (retry_scheduled) 611 return; 612 613 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 614 == CAM_SCSI_STATUS_ERROR) 615 scsi_sense_print(&done_ccb->csio); 616 else { 617 xpt_print(periph->path, 618 "got CAM status %#x\n", 619 done_ccb->ccb_h.status); 620 } 621 xpt_print(periph->path, "fatal error, failed " 622 "to attach to device\n"); 623 624 cam_periph_invalidate(periph); 625 626 announce_buf[0] = '\0'; 627 } 628 } 629 if (announce_buf[0] != '\0') 630 xpt_announce_periph(periph, announce_buf); 631 softc->state = CH_STATE_NORMAL; 632 free(mode_header, M_SCSICH); 633 /* 634 * Since our peripheral may be invalidated by an error 635 * above or an external event, we must release our CCB 636 * before releasing the probe lock on the peripheral. 637 * The peripheral will only go away once the last lock 638 * is removed, and we need it around for the CCB release 639 * operation. 640 */ 641 xpt_release_ccb(done_ccb); 642 cam_periph_unhold(periph); 643 return; 644 } 645 case CH_CCB_WAITING: 646 { 647 /* Caller will release the CCB */ 648 wakeup(&done_ccb->ccb_h.cbfcnp); 649 return; 650 } 651 default: 652 break; 653 } 654 xpt_release_ccb(done_ccb); 655 } 656 657 static int 658 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 659 { 660 struct ch_softc *softc; 661 struct cam_periph *periph; 662 663 periph = xpt_path_periph(ccb->ccb_h.path); 664 softc = (struct ch_softc *)periph->softc; 665 666 return (cam_periph_error(ccb, cam_flags, sense_flags, 667 &softc->saved_ccb)); 668 } 669 670 static int 671 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 672 { 673 struct cam_periph *periph; 674 struct ch_softc *softc; 675 int error; 676 677 periph = (struct cam_periph *)dev->si_drv1; 678 if (periph == NULL) 679 return(ENXIO); 680 681 cam_periph_lock(periph); 682 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 683 684 softc = (struct ch_softc *)periph->softc; 685 686 error = 0; 687 688 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 689 ("trying to do ioctl %#lx\n", cmd)); 690 691 /* 692 * If this command can change the device's state, we must 693 * have the device open for writing. 694 */ 695 switch (cmd) { 696 case CHIOGPICKER: 697 case CHIOGPARAMS: 698 case CHIOGSTATUS: 699 break; 700 701 default: 702 if ((flag & FWRITE) == 0) { 703 cam_periph_unlock(periph); 704 return (EBADF); 705 } 706 } 707 708 switch (cmd) { 709 case CHIOMOVE: 710 error = chmove(periph, (struct changer_move *)addr); 711 break; 712 713 case CHIOEXCHANGE: 714 error = chexchange(periph, (struct changer_exchange *)addr); 715 break; 716 717 case CHIOPOSITION: 718 error = chposition(periph, (struct changer_position *)addr); 719 break; 720 721 case CHIOGPICKER: 722 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 723 break; 724 725 case CHIOSPICKER: 726 { 727 int new_picker = *(int *)addr; 728 729 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) { 730 error = EINVAL; 731 break; 732 } 733 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 734 break; 735 } 736 case CHIOGPARAMS: 737 { 738 struct changer_params *cp = (struct changer_params *)addr; 739 740 cp->cp_npickers = softc->sc_counts[CHET_MT]; 741 cp->cp_nslots = softc->sc_counts[CHET_ST]; 742 cp->cp_nportals = softc->sc_counts[CHET_IE]; 743 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 744 break; 745 } 746 case CHIOIELEM: 747 error = chielem(periph, *(unsigned int *)addr); 748 break; 749 750 case CHIOGSTATUS: 751 { 752 error = chgetelemstatus(periph, 753 (struct changer_element_status_request *) addr); 754 break; 755 } 756 757 case CHIOSETVOLTAG: 758 { 759 error = chsetvoltag(periph, 760 (struct changer_set_voltag_request *) addr); 761 break; 762 } 763 764 /* Implement prevent/allow? */ 765 766 default: 767 error = cam_periph_ioctl(periph, cmd, addr, cherror); 768 break; 769 } 770 771 cam_periph_unlock(periph); 772 return (error); 773 } 774 775 static int 776 chmove(struct cam_periph *periph, struct changer_move *cm) 777 { 778 struct ch_softc *softc; 779 u_int16_t fromelem, toelem; 780 union ccb *ccb; 781 int error; 782 783 error = 0; 784 softc = (struct ch_softc *)periph->softc; 785 786 /* 787 * Check arguments. 788 */ 789 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 790 return (EINVAL); 791 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 792 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 793 return (ENODEV); 794 795 /* 796 * Check the request against the changer's capabilities. 797 */ 798 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 799 return (ENODEV); 800 801 /* 802 * Calculate the source and destination elements. 803 */ 804 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 805 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 806 807 ccb = cam_periph_getccb(periph, /*priority*/ 1); 808 809 scsi_move_medium(&ccb->csio, 810 /* retries */ 1, 811 /* cbfcnp */ chdone, 812 /* tag_action */ MSG_SIMPLE_Q_TAG, 813 /* tea */ softc->sc_picker, 814 /* src */ fromelem, 815 /* dst */ toelem, 816 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 817 /* sense_len */ SSD_FULL_SIZE, 818 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 819 820 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 821 /*sense_flags*/ SF_RETRY_UA, 822 softc->device_stats); 823 824 xpt_release_ccb(ccb); 825 826 return(error); 827 } 828 829 static int 830 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 831 { 832 struct ch_softc *softc; 833 u_int16_t src, dst1, dst2; 834 union ccb *ccb; 835 int error; 836 837 error = 0; 838 softc = (struct ch_softc *)periph->softc; 839 /* 840 * Check arguments. 841 */ 842 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 843 (ce->ce_sdsttype > CHET_DT)) 844 return (EINVAL); 845 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 846 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 847 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 848 return (ENODEV); 849 850 /* 851 * Check the request against the changer's capabilities. 852 */ 853 if (((softc->sc_exchangemask[ce->ce_srctype] & 854 (1 << ce->ce_fdsttype)) == 0) || 855 ((softc->sc_exchangemask[ce->ce_fdsttype] & 856 (1 << ce->ce_sdsttype)) == 0)) 857 return (ENODEV); 858 859 /* 860 * Calculate the source and destination elements. 861 */ 862 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 863 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 864 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 865 866 ccb = cam_periph_getccb(periph, /*priority*/ 1); 867 868 scsi_exchange_medium(&ccb->csio, 869 /* retries */ 1, 870 /* cbfcnp */ chdone, 871 /* tag_action */ MSG_SIMPLE_Q_TAG, 872 /* tea */ softc->sc_picker, 873 /* src */ src, 874 /* dst1 */ dst1, 875 /* dst2 */ dst2, 876 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 877 TRUE : FALSE, 878 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 879 TRUE : FALSE, 880 /* sense_len */ SSD_FULL_SIZE, 881 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 882 883 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 884 /*sense_flags*/ SF_RETRY_UA, 885 softc->device_stats); 886 887 xpt_release_ccb(ccb); 888 889 return(error); 890 } 891 892 static int 893 chposition(struct cam_periph *periph, struct changer_position *cp) 894 { 895 struct ch_softc *softc; 896 u_int16_t dst; 897 union ccb *ccb; 898 int error; 899 900 error = 0; 901 softc = (struct ch_softc *)periph->softc; 902 903 /* 904 * Check arguments. 905 */ 906 if (cp->cp_type > CHET_DT) 907 return (EINVAL); 908 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 909 return (ENODEV); 910 911 /* 912 * Calculate the destination element. 913 */ 914 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 915 916 ccb = cam_periph_getccb(periph, /*priority*/ 1); 917 918 scsi_position_to_element(&ccb->csio, 919 /* retries */ 1, 920 /* cbfcnp */ chdone, 921 /* tag_action */ MSG_SIMPLE_Q_TAG, 922 /* tea */ softc->sc_picker, 923 /* dst */ dst, 924 /* invert */ (cp->cp_flags & CP_INVERT) ? 925 TRUE : FALSE, 926 /* sense_len */ SSD_FULL_SIZE, 927 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 928 929 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 930 /*sense_flags*/ SF_RETRY_UA, 931 softc->device_stats); 932 933 xpt_release_ccb(ccb); 934 935 return(error); 936 } 937 938 /* 939 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 940 * to host native byte order in the volume serial number. The volume 941 * label as returned by the changer is transferred to user mode as 942 * nul-terminated string. Volume labels are truncated at the first 943 * space, as suggested by SCSI-2. 944 */ 945 static void 946 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 947 { 948 int i; 949 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 950 char c = voltag->vif[i]; 951 if (c && c != ' ') 952 uvoltag->cv_volid[i] = c; 953 else 954 break; 955 } 956 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 957 } 958 959 /* 960 * Copy an an element status descriptor to a user-mode 961 * changer_element_status structure. 962 */ 963 964 static void 965 copy_element_status(struct ch_softc *softc, 966 u_int16_t flags, 967 struct read_element_status_descriptor *desc, 968 struct changer_element_status *ces) 969 { 970 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 971 u_int16_t et; 972 973 ces->ces_int_addr = eaddr; 974 /* set up logical address in element status */ 975 for (et = CHET_MT; et <= CHET_DT; et++) { 976 if ((softc->sc_firsts[et] <= eaddr) 977 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 978 > eaddr)) { 979 ces->ces_addr = eaddr - softc->sc_firsts[et]; 980 ces->ces_type = et; 981 break; 982 } 983 } 984 985 ces->ces_flags = desc->flags1; 986 987 ces->ces_sensecode = desc->sense_code; 988 ces->ces_sensequal = desc->sense_qual; 989 990 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 991 ces->ces_flags |= CES_INVERT; 992 993 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 994 995 eaddr = scsi_2btoul(desc->ssea); 996 997 /* convert source address to logical format */ 998 for (et = CHET_MT; et <= CHET_DT; et++) { 999 if ((softc->sc_firsts[et] <= eaddr) 1000 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1001 > eaddr)) { 1002 ces->ces_source_addr = 1003 eaddr - softc->sc_firsts[et]; 1004 ces->ces_source_type = et; 1005 ces->ces_flags |= CES_SOURCE_VALID; 1006 break; 1007 } 1008 } 1009 1010 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1011 printf("ch: warning: could not map element source " 1012 "address %ud to a valid element type\n", 1013 eaddr); 1014 } 1015 1016 1017 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1018 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1019 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1020 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1021 1022 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1023 ces->ces_flags |= CES_SCSIID_VALID; 1024 ces->ces_scsi_id = desc->dt_scsi_addr; 1025 } 1026 1027 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1028 ces->ces_flags |= CES_LUN_VALID; 1029 ces->ces_scsi_lun = 1030 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1031 } 1032 } 1033 1034 static int 1035 chgetelemstatus(struct cam_periph *periph, 1036 struct changer_element_status_request *cesr) 1037 { 1038 struct read_element_status_header *st_hdr; 1039 struct read_element_status_page_header *pg_hdr; 1040 struct read_element_status_descriptor *desc; 1041 caddr_t data = NULL; 1042 size_t size, desclen; 1043 int avail, i, error = 0; 1044 struct changer_element_status *user_data = NULL; 1045 struct ch_softc *softc; 1046 union ccb *ccb; 1047 int chet = cesr->cesr_element_type; 1048 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1049 1050 softc = (struct ch_softc *)periph->softc; 1051 1052 /* perform argument checking */ 1053 1054 /* 1055 * Perform a range check on the cesr_element_{base,count} 1056 * request argument fields. 1057 */ 1058 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1059 || (cesr->cesr_element_base + cesr->cesr_element_count) 1060 > softc->sc_counts[chet]) 1061 return (EINVAL); 1062 1063 /* 1064 * Request one descriptor for the given element type. This 1065 * is used to determine the size of the descriptor so that 1066 * we can allocate enough storage for all of them. We assume 1067 * that the first one can fit into 1k. 1068 */ 1069 cam_periph_unlock(periph); 1070 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 1071 1072 cam_periph_lock(periph); 1073 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1074 1075 scsi_read_element_status(&ccb->csio, 1076 /* retries */ 1, 1077 /* cbfcnp */ chdone, 1078 /* tag_action */ MSG_SIMPLE_Q_TAG, 1079 /* voltag */ want_voltags, 1080 /* sea */ softc->sc_firsts[chet], 1081 /* count */ 1, 1082 /* data_ptr */ data, 1083 /* dxfer_len */ 1024, 1084 /* sense_len */ SSD_FULL_SIZE, 1085 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1086 1087 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1088 /*sense_flags*/ SF_RETRY_UA, 1089 softc->device_stats); 1090 1091 if (error) 1092 goto done; 1093 cam_periph_unlock(periph); 1094 1095 st_hdr = (struct read_element_status_header *)data; 1096 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1097 sizeof(struct read_element_status_header)); 1098 desclen = scsi_2btoul(pg_hdr->edl); 1099 1100 size = sizeof(struct read_element_status_header) + 1101 sizeof(struct read_element_status_page_header) + 1102 (desclen * cesr->cesr_element_count); 1103 1104 /* 1105 * Reallocate storage for descriptors and get them from the 1106 * device. 1107 */ 1108 free(data, M_DEVBUF); 1109 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 1110 1111 cam_periph_lock(periph); 1112 scsi_read_element_status(&ccb->csio, 1113 /* retries */ 1, 1114 /* cbfcnp */ chdone, 1115 /* tag_action */ MSG_SIMPLE_Q_TAG, 1116 /* voltag */ want_voltags, 1117 /* sea */ softc->sc_firsts[chet] 1118 + cesr->cesr_element_base, 1119 /* count */ cesr->cesr_element_count, 1120 /* data_ptr */ data, 1121 /* dxfer_len */ size, 1122 /* sense_len */ SSD_FULL_SIZE, 1123 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1124 1125 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1126 /*sense_flags*/ SF_RETRY_UA, 1127 softc->device_stats); 1128 1129 if (error) 1130 goto done; 1131 cam_periph_unlock(periph); 1132 1133 /* 1134 * Fill in the user status array. 1135 */ 1136 st_hdr = (struct read_element_status_header *)data; 1137 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1138 sizeof(struct read_element_status_header)); 1139 avail = scsi_2btoul(st_hdr->count); 1140 1141 if (avail != cesr->cesr_element_count) { 1142 xpt_print(periph->path, 1143 "warning, READ ELEMENT STATUS avail != count\n"); 1144 } 1145 1146 user_data = (struct changer_element_status *) 1147 malloc(avail * sizeof(struct changer_element_status), 1148 M_DEVBUF, M_WAITOK | M_ZERO); 1149 1150 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1151 sizeof(struct read_element_status_header) + 1152 sizeof(struct read_element_status_page_header)); 1153 /* 1154 * Set up the individual element status structures 1155 */ 1156 for (i = 0; i < avail; ++i) { 1157 struct changer_element_status *ces = &(user_data[i]); 1158 1159 copy_element_status(softc, pg_hdr->flags, desc, ces); 1160 1161 desc = (struct read_element_status_descriptor *) 1162 ((uintptr_t)desc + desclen); 1163 } 1164 1165 /* Copy element status structures out to userspace. */ 1166 error = copyout(user_data, 1167 cesr->cesr_element_status, 1168 avail * sizeof(struct changer_element_status)); 1169 cam_periph_lock(periph); 1170 1171 done: 1172 xpt_release_ccb(ccb); 1173 1174 if (data != NULL) 1175 free(data, M_DEVBUF); 1176 if (user_data != NULL) 1177 free(user_data, M_DEVBUF); 1178 1179 return (error); 1180 } 1181 1182 static int 1183 chielem(struct cam_periph *periph, 1184 unsigned int timeout) 1185 { 1186 union ccb *ccb; 1187 struct ch_softc *softc; 1188 int error; 1189 1190 if (!timeout) { 1191 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1192 } else { 1193 timeout *= 1000; 1194 } 1195 1196 error = 0; 1197 softc = (struct ch_softc *)periph->softc; 1198 1199 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1200 1201 scsi_initialize_element_status(&ccb->csio, 1202 /* retries */ 1, 1203 /* cbfcnp */ chdone, 1204 /* tag_action */ MSG_SIMPLE_Q_TAG, 1205 /* sense_len */ SSD_FULL_SIZE, 1206 /* timeout */ timeout); 1207 1208 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1209 /*sense_flags*/ SF_RETRY_UA, 1210 softc->device_stats); 1211 1212 xpt_release_ccb(ccb); 1213 1214 return(error); 1215 } 1216 1217 static int 1218 chsetvoltag(struct cam_periph *periph, 1219 struct changer_set_voltag_request *csvr) 1220 { 1221 union ccb *ccb; 1222 struct ch_softc *softc; 1223 u_int16_t ea; 1224 u_int8_t sac; 1225 struct scsi_send_volume_tag_parameters ssvtp; 1226 int error; 1227 int i; 1228 1229 error = 0; 1230 softc = (struct ch_softc *)periph->softc; 1231 1232 bzero(&ssvtp, sizeof(ssvtp)); 1233 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1234 ssvtp.vitf[i] = ' '; 1235 } 1236 1237 /* 1238 * Check arguments. 1239 */ 1240 if (csvr->csvr_type > CHET_DT) 1241 return EINVAL; 1242 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1243 return ENODEV; 1244 1245 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1246 1247 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1248 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1249 case CSVR_MODE_SET: 1250 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1251 break; 1252 case CSVR_MODE_REPLACE: 1253 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1254 break; 1255 case CSVR_MODE_CLEAR: 1256 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1257 break; 1258 default: 1259 error = EINVAL; 1260 goto out; 1261 } 1262 } else { 1263 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1264 case CSVR_MODE_SET: 1265 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1266 break; 1267 case CSVR_MODE_REPLACE: 1268 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1269 break; 1270 case CSVR_MODE_CLEAR: 1271 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1272 break; 1273 default: 1274 error = EINVAL; 1275 goto out; 1276 } 1277 } 1278 1279 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1280 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1281 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1282 1283 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1284 1285 scsi_send_volume_tag(&ccb->csio, 1286 /* retries */ 1, 1287 /* cbfcnp */ chdone, 1288 /* tag_action */ MSG_SIMPLE_Q_TAG, 1289 /* element_address */ ea, 1290 /* send_action_code */ sac, 1291 /* parameters */ &ssvtp, 1292 /* sense_len */ SSD_FULL_SIZE, 1293 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1294 1295 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1296 /*sense_flags*/ SF_RETRY_UA, 1297 softc->device_stats); 1298 1299 xpt_release_ccb(ccb); 1300 1301 out: 1302 return error; 1303 } 1304 1305 static int 1306 chgetparams(struct cam_periph *periph) 1307 { 1308 union ccb *ccb; 1309 struct ch_softc *softc; 1310 void *mode_buffer; 1311 int mode_buffer_len; 1312 struct page_element_address_assignment *ea; 1313 struct page_device_capabilities *cap; 1314 int error, from, dbd; 1315 u_int8_t *moves, *exchanges; 1316 1317 error = 0; 1318 1319 softc = (struct ch_softc *)periph->softc; 1320 1321 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1322 1323 /* 1324 * The scsi_mode_sense_data structure is just a convenience 1325 * structure that allows us to easily calculate the worst-case 1326 * storage size of the mode sense buffer. 1327 */ 1328 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1329 1330 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 1331 1332 if (mode_buffer == NULL) { 1333 printf("chgetparams: couldn't malloc mode sense data\n"); 1334 return(ENOSPC); 1335 } 1336 1337 bzero(mode_buffer, mode_buffer_len); 1338 1339 if (softc->quirks & CH_Q_NO_DBD) 1340 dbd = FALSE; 1341 else 1342 dbd = TRUE; 1343 1344 /* 1345 * Get the element address assignment page. 1346 */ 1347 scsi_mode_sense(&ccb->csio, 1348 /* retries */ 1, 1349 /* cbfcnp */ chdone, 1350 /* tag_action */ MSG_SIMPLE_Q_TAG, 1351 /* dbd */ dbd, 1352 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1353 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1354 /* param_buf */ (u_int8_t *)mode_buffer, 1355 /* param_len */ mode_buffer_len, 1356 /* sense_len */ SSD_FULL_SIZE, 1357 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1358 1359 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1360 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1361 softc->device_stats); 1362 1363 if (error) { 1364 if (dbd) { 1365 struct scsi_mode_sense_6 *sms; 1366 1367 sms = (struct scsi_mode_sense_6 *) 1368 ccb->csio.cdb_io.cdb_bytes; 1369 1370 sms->byte2 &= ~SMS_DBD; 1371 error = cam_periph_runccb(ccb, cherror, 1372 /*cam_flags*/ CAM_RETRY_SELTO, 1373 /*sense_flags*/ SF_RETRY_UA, 1374 softc->device_stats); 1375 } else { 1376 /* 1377 * Since we disabled sense printing above, print 1378 * out the sense here since we got an error. 1379 */ 1380 scsi_sense_print(&ccb->csio); 1381 } 1382 1383 if (error) { 1384 xpt_print(periph->path, 1385 "chgetparams: error getting element " 1386 "address page\n"); 1387 xpt_release_ccb(ccb); 1388 free(mode_buffer, M_SCSICH); 1389 return(error); 1390 } 1391 } 1392 1393 ea = (struct page_element_address_assignment *) 1394 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1395 1396 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1397 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1398 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1399 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1400 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1401 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1402 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1403 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1404 1405 bzero(mode_buffer, mode_buffer_len); 1406 1407 /* 1408 * Now get the device capabilities page. 1409 */ 1410 scsi_mode_sense(&ccb->csio, 1411 /* retries */ 1, 1412 /* cbfcnp */ chdone, 1413 /* tag_action */ MSG_SIMPLE_Q_TAG, 1414 /* dbd */ dbd, 1415 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1416 /* page */ CH_DEVICE_CAP_PAGE, 1417 /* param_buf */ (u_int8_t *)mode_buffer, 1418 /* param_len */ mode_buffer_len, 1419 /* sense_len */ SSD_FULL_SIZE, 1420 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1421 1422 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1423 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1424 softc->device_stats); 1425 1426 if (error) { 1427 if (dbd) { 1428 struct scsi_mode_sense_6 *sms; 1429 1430 sms = (struct scsi_mode_sense_6 *) 1431 ccb->csio.cdb_io.cdb_bytes; 1432 1433 sms->byte2 &= ~SMS_DBD; 1434 error = cam_periph_runccb(ccb, cherror, 1435 /*cam_flags*/ CAM_RETRY_SELTO, 1436 /*sense_flags*/ SF_RETRY_UA, 1437 softc->device_stats); 1438 } else { 1439 /* 1440 * Since we disabled sense printing above, print 1441 * out the sense here since we got an error. 1442 */ 1443 scsi_sense_print(&ccb->csio); 1444 } 1445 1446 if (error) { 1447 xpt_print(periph->path, 1448 "chgetparams: error getting device " 1449 "capabilities page\n"); 1450 xpt_release_ccb(ccb); 1451 free(mode_buffer, M_SCSICH); 1452 return(error); 1453 } 1454 } 1455 1456 xpt_release_ccb(ccb); 1457 1458 cap = (struct page_device_capabilities *) 1459 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1460 1461 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1462 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1463 moves = cap->move_from; 1464 exchanges = cap->exchange_with; 1465 for (from = CHET_MT; from <= CHET_MAX; ++from) { 1466 softc->sc_movemask[from] = moves[from]; 1467 softc->sc_exchangemask[from] = exchanges[from]; 1468 } 1469 1470 free(mode_buffer, M_SCSICH); 1471 1472 return(error); 1473 } 1474 1475 void 1476 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1477 void (*cbfcnp)(struct cam_periph *, union ccb *), 1478 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1479 u_int32_t dst, int invert, u_int8_t sense_len, 1480 u_int32_t timeout) 1481 { 1482 struct scsi_move_medium *scsi_cmd; 1483 1484 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1485 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1486 1487 scsi_cmd->opcode = MOVE_MEDIUM; 1488 1489 scsi_ulto2b(tea, scsi_cmd->tea); 1490 scsi_ulto2b(src, scsi_cmd->src); 1491 scsi_ulto2b(dst, scsi_cmd->dst); 1492 1493 if (invert) 1494 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1495 1496 cam_fill_csio(csio, 1497 retries, 1498 cbfcnp, 1499 /*flags*/ CAM_DIR_NONE, 1500 tag_action, 1501 /*data_ptr*/ NULL, 1502 /*dxfer_len*/ 0, 1503 sense_len, 1504 sizeof(*scsi_cmd), 1505 timeout); 1506 } 1507 1508 void 1509 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1510 void (*cbfcnp)(struct cam_periph *, union ccb *), 1511 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1512 u_int32_t dst1, u_int32_t dst2, int invert1, 1513 int invert2, u_int8_t sense_len, u_int32_t timeout) 1514 { 1515 struct scsi_exchange_medium *scsi_cmd; 1516 1517 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1518 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1519 1520 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1521 1522 scsi_ulto2b(tea, scsi_cmd->tea); 1523 scsi_ulto2b(src, scsi_cmd->src); 1524 scsi_ulto2b(dst1, scsi_cmd->fdst); 1525 scsi_ulto2b(dst2, scsi_cmd->sdst); 1526 1527 if (invert1) 1528 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1529 1530 if (invert2) 1531 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1532 1533 cam_fill_csio(csio, 1534 retries, 1535 cbfcnp, 1536 /*flags*/ CAM_DIR_NONE, 1537 tag_action, 1538 /*data_ptr*/ NULL, 1539 /*dxfer_len*/ 0, 1540 sense_len, 1541 sizeof(*scsi_cmd), 1542 timeout); 1543 } 1544 1545 void 1546 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1547 void (*cbfcnp)(struct cam_periph *, union ccb *), 1548 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1549 int invert, u_int8_t sense_len, u_int32_t timeout) 1550 { 1551 struct scsi_position_to_element *scsi_cmd; 1552 1553 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1554 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1555 1556 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1557 1558 scsi_ulto2b(tea, scsi_cmd->tea); 1559 scsi_ulto2b(dst, scsi_cmd->dst); 1560 1561 if (invert) 1562 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1563 1564 cam_fill_csio(csio, 1565 retries, 1566 cbfcnp, 1567 /*flags*/ CAM_DIR_NONE, 1568 tag_action, 1569 /*data_ptr*/ NULL, 1570 /*dxfer_len*/ 0, 1571 sense_len, 1572 sizeof(*scsi_cmd), 1573 timeout); 1574 } 1575 1576 void 1577 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1578 void (*cbfcnp)(struct cam_periph *, union ccb *), 1579 u_int8_t tag_action, int voltag, u_int32_t sea, 1580 u_int32_t count, u_int8_t *data_ptr, 1581 u_int32_t dxfer_len, u_int8_t sense_len, 1582 u_int32_t timeout) 1583 { 1584 struct scsi_read_element_status *scsi_cmd; 1585 1586 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1587 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1588 1589 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1590 1591 scsi_ulto2b(sea, scsi_cmd->sea); 1592 scsi_ulto2b(count, scsi_cmd->count); 1593 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1594 1595 if (voltag) 1596 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1597 1598 cam_fill_csio(csio, 1599 retries, 1600 cbfcnp, 1601 /*flags*/ CAM_DIR_IN, 1602 tag_action, 1603 data_ptr, 1604 dxfer_len, 1605 sense_len, 1606 sizeof(*scsi_cmd), 1607 timeout); 1608 } 1609 1610 void 1611 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1612 void (*cbfcnp)(struct cam_periph *, union ccb *), 1613 u_int8_t tag_action, u_int8_t sense_len, 1614 u_int32_t timeout) 1615 { 1616 struct scsi_initialize_element_status *scsi_cmd; 1617 1618 scsi_cmd = (struct scsi_initialize_element_status *) 1619 &csio->cdb_io.cdb_bytes; 1620 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1621 1622 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1623 1624 cam_fill_csio(csio, 1625 retries, 1626 cbfcnp, 1627 /*flags*/ CAM_DIR_NONE, 1628 tag_action, 1629 /* data_ptr */ NULL, 1630 /* dxfer_len */ 0, 1631 sense_len, 1632 sizeof(*scsi_cmd), 1633 timeout); 1634 } 1635 1636 void 1637 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1638 void (*cbfcnp)(struct cam_periph *, union ccb *), 1639 u_int8_t tag_action, 1640 u_int16_t element_address, 1641 u_int8_t send_action_code, 1642 struct scsi_send_volume_tag_parameters *parameters, 1643 u_int8_t sense_len, u_int32_t timeout) 1644 { 1645 struct scsi_send_volume_tag *scsi_cmd; 1646 1647 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1648 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1649 1650 scsi_cmd->opcode = SEND_VOLUME_TAG; 1651 scsi_ulto2b(element_address, scsi_cmd->ea); 1652 scsi_cmd->sac = send_action_code; 1653 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1654 1655 cam_fill_csio(csio, 1656 retries, 1657 cbfcnp, 1658 /*flags*/ CAM_DIR_OUT, 1659 tag_action, 1660 /* data_ptr */ (u_int8_t *) parameters, 1661 sizeof(*parameters), 1662 sense_len, 1663 sizeof(*scsi_cmd), 1664 timeout); 1665 }
Cache object: b52c238fdeaa0fa85b475c0e4cecef71
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