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 * $FreeBSD$ 28 */ 29 /* 30 * Derived from the NetBSD SCSI changer driver. 31 * 32 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $ 33 * 34 */ 35 /* 36 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com> 37 * All rights reserved. 38 * 39 * Partially based on an autochanger driver written by Stefan Grefen 40 * and on an autochanger driver written by the Systems Programming Group 41 * at the University of Utah Computer Science Department. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgements: 53 * This product includes software developed by Jason R. Thorpe 54 * for And Communications, http://www.and.com/ 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 63 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 64 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 65 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 66 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 */ 70 71 #include <sys/param.h> 72 #include <sys/queue.h> 73 #include <sys/systm.h> 74 #include <sys/kernel.h> 75 #include <sys/types.h> 76 #include <sys/malloc.h> 77 #include <sys/fcntl.h> 78 #include <sys/conf.h> 79 #include <sys/chio.h> 80 #include <sys/errno.h> 81 #include <sys/devicestat.h> 82 83 #include <cam/cam.h> 84 #include <cam/cam_ccb.h> 85 #include <cam/cam_extend.h> 86 #include <cam/cam_periph.h> 87 #include <cam/cam_xpt_periph.h> 88 #include <cam/cam_debug.h> 89 90 #include <cam/scsi/scsi_all.h> 91 #include <cam/scsi/scsi_message.h> 92 #include <cam/scsi/scsi_ch.h> 93 94 /* 95 * Timeout definitions for various changer related commands. They may 96 * be too short for some devices (especially the timeout for INITIALIZE 97 * ELEMENT STATUS). 98 */ 99 100 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 101 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 102 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 103 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 104 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 105 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 106 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 107 108 typedef enum { 109 CH_FLAG_INVALID = 0x001, 110 CH_FLAG_OPEN = 0x002 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_quirks; 127 128 #define ccb_state ppriv_field0 129 #define ccb_bp ppriv_ptr1 130 131 struct scsi_mode_sense_data { 132 struct scsi_mode_header_6 header; 133 struct scsi_mode_blk_desc blk_desc; 134 union { 135 struct page_element_address_assignment ea; 136 struct page_transport_geometry_parameters tg; 137 struct page_device_capabilities cap; 138 } pages; 139 }; 140 141 struct ch_softc { 142 ch_flags flags; 143 ch_state state; 144 ch_quirks quirks; 145 union ccb saved_ccb; 146 struct devstat device_stats; 147 dev_t dev; 148 149 int sc_picker; /* current picker */ 150 151 /* 152 * The following information is obtained from the 153 * element address assignment page. 154 */ 155 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 156 int sc_counts[4]; /* counts, indexed by CHET_* */ 157 158 /* 159 * The following mask defines the legal combinations 160 * of elements for the MOVE MEDIUM command. 161 */ 162 u_int8_t sc_movemask[4]; 163 164 /* 165 * As above, but for EXCHANGE MEDIUM. 166 */ 167 u_int8_t sc_exchangemask[4]; 168 169 /* 170 * Quirks; see below. XXX KDM not implemented yet 171 */ 172 int sc_settledelay; /* delay for settle */ 173 }; 174 175 #define CHUNIT(x) (minor((x))) 176 #define CH_CDEV_MAJOR 17 177 178 static d_open_t chopen; 179 static d_close_t chclose; 180 static d_ioctl_t chioctl; 181 static periph_init_t chinit; 182 static periph_ctor_t chregister; 183 static periph_oninv_t choninvalidate; 184 static periph_dtor_t chcleanup; 185 static periph_start_t chstart; 186 static void chasync(void *callback_arg, u_int32_t code, 187 struct cam_path *path, void *arg); 188 static void chdone(struct cam_periph *periph, 189 union ccb *done_ccb); 190 static int cherror(union ccb *ccb, u_int32_t cam_flags, 191 u_int32_t sense_flags); 192 static int chmove(struct cam_periph *periph, 193 struct changer_move *cm); 194 static int chexchange(struct cam_periph *periph, 195 struct changer_exchange *ce); 196 static int chposition(struct cam_periph *periph, 197 struct changer_position *cp); 198 static int chgetelemstatus(struct cam_periph *periph, 199 struct changer_element_status_request *csr); 200 static int chsetvoltag(struct cam_periph *periph, 201 struct changer_set_voltag_request *csvr); 202 static int chielem(struct cam_periph *periph, 203 unsigned int timeout); 204 static int chgetparams(struct cam_periph *periph); 205 206 static struct periph_driver chdriver = 207 { 208 chinit, "ch", 209 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 210 }; 211 212 DATA_SET(periphdriver_set, chdriver); 213 214 static struct cdevsw ch_cdevsw = { 215 /* open */ chopen, 216 /* close */ chclose, 217 /* read */ noread, 218 /* write */ nowrite, 219 /* ioctl */ chioctl, 220 /* poll */ nopoll, 221 /* mmap */ nommap, 222 /* strategy */ nostrategy, 223 /* name */ "ch", 224 /* maj */ CH_CDEV_MAJOR, 225 /* dump */ nodump, 226 /* psize */ nopsize, 227 /* flags */ 0, 228 /* bmaj */ -1 229 }; 230 231 static struct extend_array *chperiphs; 232 233 void 234 chinit(void) 235 { 236 cam_status status; 237 struct cam_path *path; 238 239 /* 240 * Create our extend array for storing the devices we attach to. 241 */ 242 chperiphs = cam_extend_new(); 243 if (chperiphs == NULL) { 244 printf("ch: Failed to alloc extend array!\n"); 245 return; 246 } 247 248 /* 249 * Install a global async callback. This callback will 250 * receive async callbacks like "new device found". 251 */ 252 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 253 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 254 255 if (status == CAM_REQ_CMP) { 256 struct ccb_setasync csa; 257 258 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 259 csa.ccb_h.func_code = XPT_SASYNC_CB; 260 csa.event_enable = AC_FOUND_DEVICE; 261 csa.callback = chasync; 262 csa.callback_arg = NULL; 263 xpt_action((union ccb *)&csa); 264 status = csa.ccb_h.status; 265 xpt_free_path(path); 266 } 267 268 if (status != CAM_REQ_CMP) { 269 printf("ch: Failed to attach master async callback " 270 "due to status 0x%x!\n", status); 271 } 272 } 273 274 static void 275 choninvalidate(struct cam_periph *periph) 276 { 277 struct ch_softc *softc; 278 struct ccb_setasync csa; 279 280 softc = (struct ch_softc *)periph->softc; 281 282 /* 283 * De-register any async callbacks. 284 */ 285 xpt_setup_ccb(&csa.ccb_h, periph->path, 286 /* priority */ 5); 287 csa.ccb_h.func_code = XPT_SASYNC_CB; 288 csa.event_enable = 0; 289 csa.callback = chasync; 290 csa.callback_arg = periph; 291 xpt_action((union ccb *)&csa); 292 293 softc->flags |= CH_FLAG_INVALID; 294 295 xpt_print_path(periph->path); 296 printf("lost device\n"); 297 298 } 299 300 static void 301 chcleanup(struct cam_periph *periph) 302 { 303 struct ch_softc *softc; 304 305 softc = (struct ch_softc *)periph->softc; 306 307 devstat_remove_entry(&softc->device_stats); 308 destroy_dev(softc->dev); 309 cam_extend_release(chperiphs, periph->unit_number); 310 xpt_print_path(periph->path); 311 printf("removing device entry\n"); 312 free(softc, M_DEVBUF); 313 } 314 315 static void 316 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 317 { 318 struct cam_periph *periph; 319 320 periph = (struct cam_periph *)callback_arg; 321 322 switch(code) { 323 case AC_FOUND_DEVICE: 324 { 325 struct ccb_getdev *cgd; 326 cam_status status; 327 328 cgd = (struct ccb_getdev *)arg; 329 330 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 331 break; 332 333 /* 334 * Allocate a peripheral instance for 335 * this device and start the probe 336 * process. 337 */ 338 status = cam_periph_alloc(chregister, choninvalidate, 339 chcleanup, chstart, "ch", 340 CAM_PERIPH_BIO, cgd->ccb_h.path, 341 chasync, AC_FOUND_DEVICE, cgd); 342 343 if (status != CAM_REQ_CMP 344 && status != CAM_REQ_INPROG) 345 printf("chasync: Unable to probe new device " 346 "due to status 0x%x\n", status); 347 348 break; 349 350 } 351 default: 352 cam_periph_async(periph, code, path, arg); 353 break; 354 } 355 } 356 357 static cam_status 358 chregister(struct cam_periph *periph, void *arg) 359 { 360 struct ch_softc *softc; 361 struct ccb_setasync csa; 362 struct ccb_getdev *cgd; 363 364 cgd = (struct ccb_getdev *)arg; 365 if (periph == NULL) { 366 printf("chregister: periph was NULL!!\n"); 367 return(CAM_REQ_CMP_ERR); 368 } 369 370 if (cgd == NULL) { 371 printf("chregister: no getdev CCB, can't register device\n"); 372 return(CAM_REQ_CMP_ERR); 373 } 374 375 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 376 377 if (softc == NULL) { 378 printf("chregister: Unable to probe new device. " 379 "Unable to allocate softc\n"); 380 return(CAM_REQ_CMP_ERR); 381 } 382 383 bzero(softc, sizeof(*softc)); 384 softc->state = CH_STATE_PROBE; 385 periph->softc = softc; 386 cam_extend_set(chperiphs, periph->unit_number, periph); 387 softc->quirks = CH_Q_NONE; 388 389 /* 390 * Changers don't have a blocksize, and obviously don't support 391 * tagged queueing. 392 */ 393 devstat_add_entry(&softc->device_stats, "ch", 394 periph->unit_number, 0, 395 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 396 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 397 DEVSTAT_PRIORITY_OTHER); 398 399 /* Register the device */ 400 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 401 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 402 periph->unit_number); 403 404 /* 405 * Add an async callback so that we get 406 * notified if this device goes away. 407 */ 408 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 409 csa.ccb_h.func_code = XPT_SASYNC_CB; 410 csa.event_enable = AC_LOST_DEVICE; 411 csa.callback = chasync; 412 csa.callback_arg = periph; 413 xpt_action((union ccb *)&csa); 414 415 /* 416 * Lock this peripheral until we are setup. 417 * This first call can't block 418 */ 419 (void)cam_periph_lock(periph, PRIBIO); 420 xpt_schedule(periph, /*priority*/5); 421 422 return(CAM_REQ_CMP); 423 } 424 425 static int 426 chopen(dev_t dev, int flags, int fmt, struct proc *p) 427 { 428 struct cam_periph *periph; 429 struct ch_softc *softc; 430 int unit, error; 431 int s; 432 433 unit = CHUNIT(dev); 434 periph = cam_extend_get(chperiphs, unit); 435 436 if (periph == NULL) 437 return(ENXIO); 438 439 softc = (struct ch_softc *)periph->softc; 440 441 s = splsoftcam(); 442 if (softc->flags & CH_FLAG_INVALID) { 443 splx(s); 444 return(ENXIO); 445 } 446 447 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 448 splx(s); 449 return (error); 450 } 451 452 splx(s); 453 454 if ((softc->flags & CH_FLAG_OPEN) == 0) { 455 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 456 return(ENXIO); 457 softc->flags |= CH_FLAG_OPEN; 458 } 459 460 /* 461 * Load information about this changer device into the softc. 462 */ 463 if ((error = chgetparams(periph)) != 0) { 464 softc->flags &= ~CH_FLAG_OPEN; 465 cam_periph_unlock(periph); 466 cam_periph_release(periph); 467 return(error); 468 } 469 470 cam_periph_unlock(periph); 471 472 return(error); 473 } 474 475 static int 476 chclose(dev_t dev, int flag, int fmt, struct proc *p) 477 { 478 struct cam_periph *periph; 479 struct ch_softc *softc; 480 int unit, error; 481 482 error = 0; 483 484 unit = CHUNIT(dev); 485 periph = cam_extend_get(chperiphs, unit); 486 if (periph == NULL) 487 return(ENXIO); 488 489 softc = (struct ch_softc *)periph->softc; 490 491 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 492 return(error); 493 494 softc->flags &= ~CH_FLAG_OPEN; 495 496 cam_periph_unlock(periph); 497 cam_periph_release(periph); 498 499 return(0); 500 } 501 502 static void 503 chstart(struct cam_periph *periph, union ccb *start_ccb) 504 { 505 struct ch_softc *softc; 506 int s; 507 508 softc = (struct ch_softc *)periph->softc; 509 510 switch (softc->state) { 511 case CH_STATE_NORMAL: 512 { 513 s = splbio(); 514 if (periph->immediate_priority <= periph->pinfo.priority){ 515 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 516 517 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 518 periph_links.sle); 519 periph->immediate_priority = CAM_PRIORITY_NONE; 520 splx(s); 521 wakeup(&periph->ccb_list); 522 } else 523 splx(s); 524 break; 525 } 526 case CH_STATE_PROBE: 527 { 528 int mode_buffer_len; 529 void *mode_buffer; 530 531 /* 532 * Include the block descriptor when calculating the mode 533 * buffer length, 534 */ 535 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 536 sizeof(struct scsi_mode_blk_desc) + 537 sizeof(struct page_element_address_assignment); 538 539 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_NOWAIT); 540 541 if (mode_buffer == NULL) { 542 printf("chstart: couldn't malloc mode sense data\n"); 543 break; 544 } 545 bzero(mode_buffer, mode_buffer_len); 546 547 /* 548 * Get the element address assignment page. 549 */ 550 scsi_mode_sense(&start_ccb->csio, 551 /* retries */ 1, 552 /* cbfcnp */ chdone, 553 /* tag_action */ MSG_SIMPLE_Q_TAG, 554 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 555 FALSE : TRUE, 556 /* page_code */ SMS_PAGE_CTRL_CURRENT, 557 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 558 /* param_buf */ (u_int8_t *)mode_buffer, 559 /* param_len */ mode_buffer_len, 560 /* sense_len */ SSD_FULL_SIZE, 561 /* timeout */ CH_TIMEOUT_MODE_SENSE); 562 563 start_ccb->ccb_h.ccb_bp = NULL; 564 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 565 xpt_action(start_ccb); 566 break; 567 } 568 } 569 } 570 571 static void 572 chdone(struct cam_periph *periph, union ccb *done_ccb) 573 { 574 struct ch_softc *softc; 575 struct ccb_scsiio *csio; 576 577 softc = (struct ch_softc *)periph->softc; 578 csio = &done_ccb->csio; 579 580 switch(done_ccb->ccb_h.ccb_state) { 581 case CH_CCB_PROBE: 582 { 583 struct scsi_mode_header_6 *mode_header; 584 struct page_element_address_assignment *ea; 585 char announce_buf[80]; 586 587 588 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 589 590 ea = (struct page_element_address_assignment *) 591 find_mode_page_6(mode_header); 592 593 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 594 595 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 596 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 597 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 598 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 599 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 600 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 601 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 602 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 603 softc->sc_picker = softc->sc_firsts[CHET_MT]; 604 605 #define PLURAL(c) (c) == 1 ? "" : "s" 606 snprintf(announce_buf, sizeof(announce_buf), 607 "%d slot%s, %d drive%s, " 608 "%d picker%s, %d portal%s", 609 softc->sc_counts[CHET_ST], 610 PLURAL(softc->sc_counts[CHET_ST]), 611 softc->sc_counts[CHET_DT], 612 PLURAL(softc->sc_counts[CHET_DT]), 613 softc->sc_counts[CHET_MT], 614 PLURAL(softc->sc_counts[CHET_MT]), 615 softc->sc_counts[CHET_IE], 616 PLURAL(softc->sc_counts[CHET_IE])); 617 #undef PLURAL 618 } else { 619 int error; 620 621 error = cherror(done_ccb, 0, SF_RETRY_UA | 622 SF_NO_PRINT | SF_RETRY_SELTO); 623 /* 624 * Retry any UNIT ATTENTION type errors. They 625 * are expected at boot. 626 */ 627 if (error == ERESTART) { 628 /* 629 * A retry was scheuled, so 630 * just return. 631 */ 632 return; 633 } else if (error != 0) { 634 int retry_scheduled; 635 struct scsi_mode_sense_6 *sms; 636 637 sms = (struct scsi_mode_sense_6 *) 638 done_ccb->csio.cdb_io.cdb_bytes; 639 640 /* 641 * Check to see if block descriptors were 642 * disabled. Some devices don't like that. 643 * We're taking advantage of the fact that 644 * the first few bytes of the 6 and 10 byte 645 * mode sense commands are the same. If 646 * block descriptors were disabled, enable 647 * them and re-send the command. 648 */ 649 if (sms->byte2 & SMS_DBD) { 650 sms->byte2 &= ~SMS_DBD; 651 xpt_action(done_ccb); 652 softc->quirks |= CH_Q_NO_DBD; 653 retry_scheduled = 1; 654 } else 655 retry_scheduled = 0; 656 657 /* Don't wedge this device's queue */ 658 cam_release_devq(done_ccb->ccb_h.path, 659 /*relsim_flags*/0, 660 /*reduction*/0, 661 /*timeout*/0, 662 /*getcount_only*/0); 663 664 if (retry_scheduled) 665 return; 666 667 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 668 == CAM_SCSI_STATUS_ERROR) 669 scsi_sense_print(&done_ccb->csio); 670 else { 671 xpt_print_path(periph->path); 672 printf("got CAM status %#x\n", 673 done_ccb->ccb_h.status); 674 } 675 xpt_print_path(periph->path); 676 printf("fatal error, failed to attach to" 677 " device\n"); 678 679 cam_periph_invalidate(periph); 680 681 announce_buf[0] = '\0'; 682 } 683 } 684 if (announce_buf[0] != '\0') 685 xpt_announce_periph(periph, announce_buf); 686 softc->state = CH_STATE_NORMAL; 687 free(mode_header, M_TEMP); 688 /* 689 * Since our peripheral may be invalidated by an error 690 * above or an external event, we must release our CCB 691 * before releasing the probe lock on the peripheral. 692 * The peripheral will only go away once the last lock 693 * is removed, and we need it around for the CCB release 694 * operation. 695 */ 696 xpt_release_ccb(done_ccb); 697 cam_periph_unlock(periph); 698 return; 699 } 700 case CH_CCB_WAITING: 701 { 702 /* Caller will release the CCB */ 703 wakeup(&done_ccb->ccb_h.cbfcnp); 704 return; 705 } 706 default: 707 break; 708 } 709 xpt_release_ccb(done_ccb); 710 } 711 712 static int 713 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 714 { 715 struct ch_softc *softc; 716 struct cam_periph *periph; 717 718 periph = xpt_path_periph(ccb->ccb_h.path); 719 softc = (struct ch_softc *)periph->softc; 720 721 return (cam_periph_error(ccb, cam_flags, sense_flags, 722 &softc->saved_ccb)); 723 } 724 725 static int 726 chioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 727 { 728 struct cam_periph *periph; 729 struct ch_softc *softc; 730 u_int8_t unit; 731 int error; 732 733 unit = CHUNIT(dev); 734 735 periph = cam_extend_get(chperiphs, unit); 736 if (periph == NULL) 737 return(ENXIO); 738 739 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 740 741 softc = (struct ch_softc *)periph->softc; 742 743 error = 0; 744 745 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 746 ("trying to do ioctl %#lx\n", cmd)); 747 748 /* 749 * If this command can change the device's state, we must 750 * have the device open for writing. 751 */ 752 switch (cmd) { 753 case CHIOGPICKER: 754 case CHIOGPARAMS: 755 case CHIOGSTATUS: 756 break; 757 758 default: 759 if ((flag & FWRITE) == 0) 760 return (EBADF); 761 } 762 763 switch (cmd) { 764 case CHIOMOVE: 765 error = chmove(periph, (struct changer_move *)addr); 766 break; 767 768 case CHIOEXCHANGE: 769 error = chexchange(periph, (struct changer_exchange *)addr); 770 break; 771 772 case CHIOPOSITION: 773 error = chposition(periph, (struct changer_position *)addr); 774 break; 775 776 case CHIOGPICKER: 777 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 778 break; 779 780 case CHIOSPICKER: 781 { 782 int new_picker = *(int *)addr; 783 784 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) 785 return (EINVAL); 786 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 787 break; 788 } 789 case CHIOGPARAMS: 790 { 791 struct changer_params *cp = (struct changer_params *)addr; 792 793 cp->cp_npickers = softc->sc_counts[CHET_MT]; 794 cp->cp_nslots = softc->sc_counts[CHET_ST]; 795 cp->cp_nportals = softc->sc_counts[CHET_IE]; 796 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 797 break; 798 } 799 case CHIOIELEM: 800 error = chielem(periph, *(unsigned int *)addr); 801 break; 802 803 case CHIOGSTATUS: 804 { 805 error = chgetelemstatus(periph, 806 (struct changer_element_status_request *) addr); 807 break; 808 } 809 810 case CHIOSETVOLTAG: 811 { 812 error = chsetvoltag(periph, 813 (struct changer_set_voltag_request *) addr); 814 break; 815 } 816 817 /* Implement prevent/allow? */ 818 819 default: 820 error = cam_periph_ioctl(periph, cmd, addr, cherror); 821 break; 822 } 823 824 return (error); 825 } 826 827 static int 828 chmove(struct cam_periph *periph, struct changer_move *cm) 829 { 830 struct ch_softc *softc; 831 u_int16_t fromelem, toelem; 832 union ccb *ccb; 833 int error; 834 835 error = 0; 836 softc = (struct ch_softc *)periph->softc; 837 838 /* 839 * Check arguments. 840 */ 841 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 842 return (EINVAL); 843 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 844 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 845 return (ENODEV); 846 847 /* 848 * Check the request against the changer's capabilities. 849 */ 850 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 851 return (ENODEV); 852 853 /* 854 * Calculate the source and destination elements. 855 */ 856 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 857 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 858 859 ccb = cam_periph_getccb(periph, /*priority*/ 1); 860 861 scsi_move_medium(&ccb->csio, 862 /* retries */ 1, 863 /* cbfcnp */ chdone, 864 /* tag_action */ MSG_SIMPLE_Q_TAG, 865 /* tea */ softc->sc_picker, 866 /* src */ fromelem, 867 /* dst */ toelem, 868 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 869 /* sense_len */ SSD_FULL_SIZE, 870 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 871 872 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/0, 873 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 874 &softc->device_stats); 875 876 xpt_release_ccb(ccb); 877 878 return(error); 879 } 880 881 static int 882 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 883 { 884 struct ch_softc *softc; 885 u_int16_t src, dst1, dst2; 886 union ccb *ccb; 887 int error; 888 889 error = 0; 890 softc = (struct ch_softc *)periph->softc; 891 /* 892 * Check arguments. 893 */ 894 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 895 (ce->ce_sdsttype > CHET_DT)) 896 return (EINVAL); 897 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 898 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 899 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 900 return (ENODEV); 901 902 /* 903 * Check the request against the changer's capabilities. 904 */ 905 if (((softc->sc_exchangemask[ce->ce_srctype] & 906 (1 << ce->ce_fdsttype)) == 0) || 907 ((softc->sc_exchangemask[ce->ce_fdsttype] & 908 (1 << ce->ce_sdsttype)) == 0)) 909 return (ENODEV); 910 911 /* 912 * Calculate the source and destination elements. 913 */ 914 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 915 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 916 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 917 918 ccb = cam_periph_getccb(periph, /*priority*/ 1); 919 920 scsi_exchange_medium(&ccb->csio, 921 /* retries */ 1, 922 /* cbfcnp */ chdone, 923 /* tag_action */ MSG_SIMPLE_Q_TAG, 924 /* tea */ softc->sc_picker, 925 /* src */ src, 926 /* dst1 */ dst1, 927 /* dst2 */ dst2, 928 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 929 TRUE : FALSE, 930 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 931 TRUE : FALSE, 932 /* sense_len */ SSD_FULL_SIZE, 933 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 934 935 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/0, 936 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 937 &softc->device_stats); 938 939 xpt_release_ccb(ccb); 940 941 return(error); 942 } 943 944 static int 945 chposition(struct cam_periph *periph, struct changer_position *cp) 946 { 947 struct ch_softc *softc; 948 u_int16_t dst; 949 union ccb *ccb; 950 int error; 951 952 error = 0; 953 softc = (struct ch_softc *)periph->softc; 954 955 /* 956 * Check arguments. 957 */ 958 if (cp->cp_type > CHET_DT) 959 return (EINVAL); 960 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 961 return (ENODEV); 962 963 /* 964 * Calculate the destination element. 965 */ 966 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 967 968 ccb = cam_periph_getccb(periph, /*priority*/ 1); 969 970 scsi_position_to_element(&ccb->csio, 971 /* retries */ 1, 972 /* cbfcnp */ chdone, 973 /* tag_action */ MSG_SIMPLE_Q_TAG, 974 /* tea */ softc->sc_picker, 975 /* dst */ dst, 976 /* invert */ (cp->cp_flags & CP_INVERT) ? 977 TRUE : FALSE, 978 /* sense_len */ SSD_FULL_SIZE, 979 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 980 981 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 982 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 983 &softc->device_stats); 984 985 xpt_release_ccb(ccb); 986 987 return(error); 988 } 989 990 /* 991 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 992 * to host native byte order in the volume serial number. The volume 993 * label as returned by the changer is transferred to user mode as 994 * nul-terminated string. Volume labels are truncated at the first 995 * space, as suggested by SCSI-2. 996 */ 997 static void 998 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 999 { 1000 int i; 1001 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 1002 char c = voltag->vif[i]; 1003 if (c && c != ' ') 1004 uvoltag->cv_volid[i] = c; 1005 else 1006 break; 1007 } 1008 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 1009 } 1010 1011 /* 1012 * Copy an an element status descriptor to a user-mode 1013 * changer_element_status structure. 1014 */ 1015 1016 static void 1017 copy_element_status(struct ch_softc *softc, 1018 u_int16_t flags, 1019 struct read_element_status_descriptor *desc, 1020 struct changer_element_status *ces) 1021 { 1022 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1023 u_int16_t et; 1024 1025 ces->ces_int_addr = eaddr; 1026 /* set up logical address in element status */ 1027 for (et = CHET_MT; et <= CHET_DT; et++) { 1028 if ((softc->sc_firsts[et] <= eaddr) 1029 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1030 > eaddr)) { 1031 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1032 ces->ces_type = et; 1033 break; 1034 } 1035 } 1036 1037 ces->ces_flags = desc->flags1; 1038 1039 ces->ces_sensecode = desc->sense_code; 1040 ces->ces_sensequal = desc->sense_qual; 1041 1042 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1043 ces->ces_flags |= CES_INVERT; 1044 1045 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1046 1047 eaddr = scsi_2btoul(desc->ssea); 1048 1049 /* convert source address to logical format */ 1050 for (et = CHET_MT; et <= CHET_DT; et++) { 1051 if ((softc->sc_firsts[et] <= eaddr) 1052 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1053 > eaddr)) { 1054 ces->ces_source_addr = 1055 eaddr - softc->sc_firsts[et]; 1056 ces->ces_source_type = et; 1057 ces->ces_flags |= CES_SOURCE_VALID; 1058 break; 1059 } 1060 } 1061 1062 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1063 printf("ch: warning: could not map element source " 1064 "address %ud to a valid element type\n", 1065 eaddr); 1066 } 1067 1068 1069 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1070 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1071 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1072 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1073 1074 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1075 ces->ces_flags |= CES_SCSIID_VALID; 1076 ces->ces_scsi_id = desc->dt_scsi_addr; 1077 } 1078 1079 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1080 ces->ces_flags |= CES_LUN_VALID; 1081 ces->ces_scsi_lun = 1082 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1083 } 1084 } 1085 1086 static int 1087 chgetelemstatus(struct cam_periph *periph, 1088 struct changer_element_status_request *cesr) 1089 { 1090 struct read_element_status_header *st_hdr; 1091 struct read_element_status_page_header *pg_hdr; 1092 struct read_element_status_descriptor *desc; 1093 caddr_t data = NULL; 1094 size_t size, desclen; 1095 int avail, i, error = 0; 1096 struct changer_element_status *user_data = NULL; 1097 struct ch_softc *softc; 1098 union ccb *ccb; 1099 int chet = cesr->cesr_element_type; 1100 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1101 1102 softc = (struct ch_softc *)periph->softc; 1103 1104 /* perform argument checking */ 1105 1106 /* 1107 * Perform a range check on the cesr_element_{base,count} 1108 * request argument fields. 1109 */ 1110 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1111 || (cesr->cesr_element_base + cesr->cesr_element_count) 1112 > softc->sc_counts[chet]) 1113 return (EINVAL); 1114 1115 /* 1116 * Request one descriptor for the given element type. This 1117 * is used to determine the size of the descriptor so that 1118 * we can allocate enough storage for all of them. We assume 1119 * that the first one can fit into 1k. 1120 */ 1121 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 1122 1123 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1124 1125 scsi_read_element_status(&ccb->csio, 1126 /* retries */ 1, 1127 /* cbfcnp */ chdone, 1128 /* tag_action */ MSG_SIMPLE_Q_TAG, 1129 /* voltag */ want_voltags, 1130 /* sea */ softc->sc_firsts[chet], 1131 /* count */ 1, 1132 /* data_ptr */ data, 1133 /* dxfer_len */ 1024, 1134 /* sense_len */ SSD_FULL_SIZE, 1135 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1136 1137 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1138 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1139 &softc->device_stats); 1140 1141 if (error) 1142 goto done; 1143 1144 st_hdr = (struct read_element_status_header *)data; 1145 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1146 sizeof(struct read_element_status_header)); 1147 desclen = scsi_2btoul(pg_hdr->edl); 1148 1149 size = sizeof(struct read_element_status_header) + 1150 sizeof(struct read_element_status_page_header) + 1151 (desclen * cesr->cesr_element_count); 1152 1153 /* 1154 * Reallocate storage for descriptors and get them from the 1155 * device. 1156 */ 1157 free(data, M_DEVBUF); 1158 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 1159 1160 scsi_read_element_status(&ccb->csio, 1161 /* retries */ 1, 1162 /* cbfcnp */ chdone, 1163 /* tag_action */ MSG_SIMPLE_Q_TAG, 1164 /* voltag */ want_voltags, 1165 /* sea */ softc->sc_firsts[chet] 1166 + cesr->cesr_element_base, 1167 /* count */ cesr->cesr_element_count, 1168 /* data_ptr */ data, 1169 /* dxfer_len */ size, 1170 /* sense_len */ SSD_FULL_SIZE, 1171 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1172 1173 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1174 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1175 &softc->device_stats); 1176 1177 if (error) 1178 goto done; 1179 1180 /* 1181 * Fill in the user status array. 1182 */ 1183 st_hdr = (struct read_element_status_header *)data; 1184 avail = scsi_2btoul(st_hdr->count); 1185 1186 if (avail != cesr->cesr_element_count) { 1187 xpt_print_path(periph->path); 1188 printf("warning, READ ELEMENT STATUS avail != count\n"); 1189 } 1190 1191 user_data = (struct changer_element_status *) 1192 malloc(avail * sizeof(struct changer_element_status), 1193 M_DEVBUF, M_WAITOK | M_ZERO); 1194 1195 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1196 sizeof(struct read_element_status_header) + 1197 sizeof(struct read_element_status_page_header)); 1198 /* 1199 * Set up the individual element status structures 1200 */ 1201 for (i = 0; i < avail; ++i) { 1202 struct changer_element_status *ces = &(user_data[i]); 1203 1204 copy_element_status(softc, pg_hdr->flags, desc, ces); 1205 1206 desc = (struct read_element_status_descriptor *) 1207 ((uintptr_t)desc + desclen); 1208 } 1209 1210 /* Copy element status structures out to userspace. */ 1211 error = copyout(user_data, 1212 cesr->cesr_element_status, 1213 avail * sizeof(struct changer_element_status)); 1214 1215 done: 1216 xpt_release_ccb(ccb); 1217 1218 if (data != NULL) 1219 free(data, M_DEVBUF); 1220 if (user_data != NULL) 1221 free(user_data, M_DEVBUF); 1222 1223 return (error); 1224 } 1225 1226 static int 1227 chielem(struct cam_periph *periph, 1228 unsigned int timeout) 1229 { 1230 union ccb *ccb; 1231 struct ch_softc *softc; 1232 int error; 1233 1234 if (!timeout) { 1235 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1236 } else { 1237 timeout *= 1000; 1238 } 1239 1240 error = 0; 1241 softc = (struct ch_softc *)periph->softc; 1242 1243 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1244 1245 scsi_initialize_element_status(&ccb->csio, 1246 /* retries */ 1, 1247 /* cbfcnp */ chdone, 1248 /* tag_action */ MSG_SIMPLE_Q_TAG, 1249 /* sense_len */ SSD_FULL_SIZE, 1250 /* timeout */ timeout); 1251 1252 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1253 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1254 &softc->device_stats); 1255 1256 xpt_release_ccb(ccb); 1257 1258 return(error); 1259 } 1260 1261 static int 1262 chsetvoltag(struct cam_periph *periph, 1263 struct changer_set_voltag_request *csvr) 1264 { 1265 union ccb *ccb; 1266 struct ch_softc *softc; 1267 u_int16_t ea; 1268 u_int8_t sac; 1269 struct scsi_send_volume_tag_parameters ssvtp; 1270 int error; 1271 int i; 1272 1273 error = 0; 1274 softc = (struct ch_softc *)periph->softc; 1275 1276 bzero(&ssvtp, sizeof(ssvtp)); 1277 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1278 ssvtp.vitf[i] = ' '; 1279 } 1280 1281 /* 1282 * Check arguments. 1283 */ 1284 if (csvr->csvr_type > CHET_DT) 1285 return EINVAL; 1286 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1287 return ENODEV; 1288 1289 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1290 1291 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1292 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1293 case CSVR_MODE_SET: 1294 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1295 break; 1296 case CSVR_MODE_REPLACE: 1297 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1298 break; 1299 case CSVR_MODE_CLEAR: 1300 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1301 break; 1302 default: 1303 error = EINVAL; 1304 goto out; 1305 } 1306 } else { 1307 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1308 case CSVR_MODE_SET: 1309 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1310 break; 1311 case CSVR_MODE_REPLACE: 1312 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1313 break; 1314 case CSVR_MODE_CLEAR: 1315 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1316 break; 1317 default: 1318 error = EINVAL; 1319 goto out; 1320 } 1321 } 1322 1323 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1324 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1325 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1326 1327 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1328 1329 scsi_send_volume_tag(&ccb->csio, 1330 /* retries */ 1, 1331 /* cbfcnp */ chdone, 1332 /* tag_action */ MSG_SIMPLE_Q_TAG, 1333 /* element_address */ ea, 1334 /* send_action_code */ sac, 1335 /* parameters */ &ssvtp, 1336 /* sense_len */ SSD_FULL_SIZE, 1337 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1338 1339 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1340 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1341 &softc->device_stats); 1342 1343 xpt_release_ccb(ccb); 1344 1345 out: 1346 return error; 1347 } 1348 1349 static int 1350 chgetparams(struct cam_periph *periph) 1351 { 1352 union ccb *ccb; 1353 struct ch_softc *softc; 1354 void *mode_buffer; 1355 int mode_buffer_len; 1356 struct page_element_address_assignment *ea; 1357 struct page_device_capabilities *cap; 1358 int error, from, dbd; 1359 u_int8_t *moves, *exchanges; 1360 1361 error = 0; 1362 1363 softc = (struct ch_softc *)periph->softc; 1364 1365 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1366 1367 /* 1368 * The scsi_mode_sense_data structure is just a convenience 1369 * structure that allows us to easily calculate the worst-case 1370 * storage size of the mode sense buffer. 1371 */ 1372 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1373 1374 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_NOWAIT); 1375 1376 if (mode_buffer == NULL) { 1377 printf("chgetparams: couldn't malloc mode sense data\n"); 1378 return(ENOSPC); 1379 } 1380 1381 bzero(mode_buffer, mode_buffer_len); 1382 1383 if (softc->quirks & CH_Q_NO_DBD) 1384 dbd = FALSE; 1385 else 1386 dbd = TRUE; 1387 1388 /* 1389 * Get the element address assignment page. 1390 */ 1391 scsi_mode_sense(&ccb->csio, 1392 /* retries */ 1, 1393 /* cbfcnp */ chdone, 1394 /* tag_action */ MSG_SIMPLE_Q_TAG, 1395 /* dbd */ dbd, 1396 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1397 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1398 /* param_buf */ (u_int8_t *)mode_buffer, 1399 /* param_len */ mode_buffer_len, 1400 /* sense_len */ SSD_FULL_SIZE, 1401 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1402 1403 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1404 /* sense_flags */ SF_RETRY_UA | 1405 SF_NO_PRINT | SF_RETRY_SELTO, 1406 &softc->device_stats); 1407 1408 if (error) { 1409 if (dbd) { 1410 struct scsi_mode_sense_6 *sms; 1411 1412 sms = (struct scsi_mode_sense_6 *) 1413 ccb->csio.cdb_io.cdb_bytes; 1414 1415 sms->byte2 &= ~SMS_DBD; 1416 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1417 /*sense_flags*/ SF_RETRY_UA | 1418 SF_RETRY_SELTO, 1419 &softc->device_stats); 1420 } else { 1421 /* 1422 * Since we disabled sense printing above, print 1423 * out the sense here since we got an error. 1424 */ 1425 scsi_sense_print(&ccb->csio); 1426 } 1427 1428 if (error) { 1429 xpt_print_path(periph->path); 1430 printf("chgetparams: error getting element " 1431 "address page\n"); 1432 xpt_release_ccb(ccb); 1433 free(mode_buffer, M_TEMP); 1434 return(error); 1435 } 1436 } 1437 1438 ea = (struct page_element_address_assignment *) 1439 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1440 1441 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1442 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1443 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1444 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1445 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1446 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1447 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1448 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1449 1450 bzero(mode_buffer, mode_buffer_len); 1451 1452 /* 1453 * Now get the device capabilities page. 1454 */ 1455 scsi_mode_sense(&ccb->csio, 1456 /* retries */ 1, 1457 /* cbfcnp */ chdone, 1458 /* tag_action */ MSG_SIMPLE_Q_TAG, 1459 /* dbd */ dbd, 1460 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1461 /* page */ CH_DEVICE_CAP_PAGE, 1462 /* param_buf */ (u_int8_t *)mode_buffer, 1463 /* param_len */ mode_buffer_len, 1464 /* sense_len */ SSD_FULL_SIZE, 1465 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1466 1467 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1468 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT | 1469 SF_RETRY_SELTO, &softc->device_stats); 1470 1471 if (error) { 1472 if (dbd) { 1473 struct scsi_mode_sense_6 *sms; 1474 1475 sms = (struct scsi_mode_sense_6 *) 1476 ccb->csio.cdb_io.cdb_bytes; 1477 1478 sms->byte2 &= ~SMS_DBD; 1479 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1480 /*sense_flags*/ SF_RETRY_UA | 1481 SF_RETRY_SELTO, 1482 &softc->device_stats); 1483 } else { 1484 /* 1485 * Since we disabled sense printing above, print 1486 * out the sense here since we got an error. 1487 */ 1488 scsi_sense_print(&ccb->csio); 1489 } 1490 1491 if (error) { 1492 xpt_print_path(periph->path); 1493 printf("chgetparams: error getting device " 1494 "capabilities page\n"); 1495 xpt_release_ccb(ccb); 1496 free(mode_buffer, M_TEMP); 1497 return(error); 1498 } 1499 } 1500 1501 xpt_release_ccb(ccb); 1502 1503 cap = (struct page_device_capabilities *) 1504 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1505 1506 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1507 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1508 moves = &cap->move_from_mt; 1509 exchanges = &cap->exchange_with_mt; 1510 for (from = CHET_MT; from <= CHET_DT; ++from) { 1511 softc->sc_movemask[from] = moves[from]; 1512 softc->sc_exchangemask[from] = exchanges[from]; 1513 } 1514 1515 free(mode_buffer, M_TEMP); 1516 1517 return(error); 1518 } 1519 1520 void 1521 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1522 void (*cbfcnp)(struct cam_periph *, union ccb *), 1523 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1524 u_int32_t dst, int invert, u_int8_t sense_len, 1525 u_int32_t timeout) 1526 { 1527 struct scsi_move_medium *scsi_cmd; 1528 1529 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1530 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1531 1532 scsi_cmd->opcode = MOVE_MEDIUM; 1533 1534 scsi_ulto2b(tea, scsi_cmd->tea); 1535 scsi_ulto2b(src, scsi_cmd->src); 1536 scsi_ulto2b(dst, scsi_cmd->dst); 1537 1538 if (invert) 1539 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1540 1541 cam_fill_csio(csio, 1542 retries, 1543 cbfcnp, 1544 /*flags*/ CAM_DIR_NONE, 1545 tag_action, 1546 /*data_ptr*/ NULL, 1547 /*dxfer_len*/ 0, 1548 sense_len, 1549 sizeof(*scsi_cmd), 1550 timeout); 1551 } 1552 1553 void 1554 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1555 void (*cbfcnp)(struct cam_periph *, union ccb *), 1556 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1557 u_int32_t dst1, u_int32_t dst2, int invert1, 1558 int invert2, u_int8_t sense_len, u_int32_t timeout) 1559 { 1560 struct scsi_exchange_medium *scsi_cmd; 1561 1562 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1563 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1564 1565 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1566 1567 scsi_ulto2b(tea, scsi_cmd->tea); 1568 scsi_ulto2b(src, scsi_cmd->src); 1569 scsi_ulto2b(dst1, scsi_cmd->fdst); 1570 scsi_ulto2b(dst2, scsi_cmd->sdst); 1571 1572 if (invert1) 1573 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1574 1575 if (invert2) 1576 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1577 1578 cam_fill_csio(csio, 1579 retries, 1580 cbfcnp, 1581 /*flags*/ CAM_DIR_NONE, 1582 tag_action, 1583 /*data_ptr*/ NULL, 1584 /*dxfer_len*/ 0, 1585 sense_len, 1586 sizeof(*scsi_cmd), 1587 timeout); 1588 } 1589 1590 void 1591 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1592 void (*cbfcnp)(struct cam_periph *, union ccb *), 1593 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1594 int invert, u_int8_t sense_len, u_int32_t timeout) 1595 { 1596 struct scsi_position_to_element *scsi_cmd; 1597 1598 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1599 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1600 1601 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1602 1603 scsi_ulto2b(tea, scsi_cmd->tea); 1604 scsi_ulto2b(dst, scsi_cmd->dst); 1605 1606 if (invert) 1607 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1608 1609 cam_fill_csio(csio, 1610 retries, 1611 cbfcnp, 1612 /*flags*/ CAM_DIR_NONE, 1613 tag_action, 1614 /*data_ptr*/ NULL, 1615 /*dxfer_len*/ 0, 1616 sense_len, 1617 sizeof(*scsi_cmd), 1618 timeout); 1619 } 1620 1621 void 1622 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1623 void (*cbfcnp)(struct cam_periph *, union ccb *), 1624 u_int8_t tag_action, int voltag, u_int32_t sea, 1625 u_int32_t count, u_int8_t *data_ptr, 1626 u_int32_t dxfer_len, u_int8_t sense_len, 1627 u_int32_t timeout) 1628 { 1629 struct scsi_read_element_status *scsi_cmd; 1630 1631 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1632 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1633 1634 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1635 1636 scsi_ulto2b(sea, scsi_cmd->sea); 1637 scsi_ulto2b(count, scsi_cmd->count); 1638 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1639 1640 if (voltag) 1641 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1642 1643 cam_fill_csio(csio, 1644 retries, 1645 cbfcnp, 1646 /*flags*/ CAM_DIR_IN, 1647 tag_action, 1648 data_ptr, 1649 dxfer_len, 1650 sense_len, 1651 sizeof(*scsi_cmd), 1652 timeout); 1653 } 1654 1655 void 1656 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1657 void (*cbfcnp)(struct cam_periph *, union ccb *), 1658 u_int8_t tag_action, u_int8_t sense_len, 1659 u_int32_t timeout) 1660 { 1661 struct scsi_initialize_element_status *scsi_cmd; 1662 1663 scsi_cmd = (struct scsi_initialize_element_status *) 1664 &csio->cdb_io.cdb_bytes; 1665 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1666 1667 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1668 1669 cam_fill_csio(csio, 1670 retries, 1671 cbfcnp, 1672 /*flags*/ CAM_DIR_NONE, 1673 tag_action, 1674 /* data_ptr */ NULL, 1675 /* dxfer_len */ 0, 1676 sense_len, 1677 sizeof(*scsi_cmd), 1678 timeout); 1679 } 1680 1681 void 1682 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1683 void (*cbfcnp)(struct cam_periph *, union ccb *), 1684 u_int8_t tag_action, 1685 u_int16_t element_address, 1686 u_int8_t send_action_code, 1687 struct scsi_send_volume_tag_parameters *parameters, 1688 u_int8_t sense_len, u_int32_t timeout) 1689 { 1690 struct scsi_send_volume_tag *scsi_cmd; 1691 1692 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1693 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1694 1695 scsi_cmd->opcode = SEND_VOLUME_TAG; 1696 scsi_ulto2b(element_address, scsi_cmd->ea); 1697 scsi_cmd->sac = send_action_code; 1698 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1699 1700 cam_fill_csio(csio, 1701 retries, 1702 cbfcnp, 1703 /*flags*/ CAM_DIR_OUT, 1704 tag_action, 1705 /* data_ptr */ (u_int8_t *) parameters, 1706 sizeof(*parameters), 1707 sense_len, 1708 sizeof(*scsi_cmd), 1709 timeout); 1710 } 1711