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: src/sys/cam/scsi/scsi_ch.c,v 1.20.2.2 2000/10/31 08:09:49 dwmalone Exp $ 28 * $DragonFly: src/sys/bus/cam/scsi/scsi_ch.c,v 1.13 2006/02/17 19:17:42 dillon Exp $ 29 */ 30 /* 31 * Derived from the NetBSD SCSI changer driver. 32 * 33 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $ 34 * 35 */ 36 /* 37 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com> 38 * All rights reserved. 39 * 40 * Partially based on an autochanger driver written by Stefan Grefen 41 * and on an autochanger driver written by the Systems Programming Group 42 * at the University of Utah Computer Science Department. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgements: 54 * This product includes software developed by Jason R. Thorpe 55 * for And Communications, http://www.and.com/ 56 * 4. The name of the author may not be used to endorse or promote products 57 * derived from this software without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 64 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 65 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 66 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 67 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 */ 71 72 #include <sys/param.h> 73 #include <sys/queue.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/types.h> 77 #include <sys/malloc.h> 78 #include <sys/fcntl.h> 79 #include <sys/stat.h> 80 #include <sys/conf.h> 81 #include <sys/buf.h> 82 #include <sys/chio.h> 83 #include <sys/errno.h> 84 #include <sys/devicestat.h> 85 #include <sys/thread2.h> 86 87 #include "../cam.h" 88 #include "../cam_ccb.h" 89 #include "../cam_extend.h" 90 #include "../cam_periph.h" 91 #include "../cam_xpt_periph.h" 92 #include "../cam_queue.h" 93 #include "../cam_debug.h" 94 95 #include "scsi_all.h" 96 #include "scsi_message.h" 97 #include "scsi_ch.h" 98 99 /* 100 * Timeout definitions for various changer related commands. They may 101 * be too short for some devices (especially the timeout for INITIALIZE 102 * ELEMENT STATUS). 103 */ 104 105 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 106 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 107 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 108 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 109 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 110 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 111 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 112 113 typedef enum { 114 CH_FLAG_INVALID = 0x001, 115 CH_FLAG_OPEN = 0x002 116 } ch_flags; 117 118 typedef enum { 119 CH_STATE_PROBE, 120 CH_STATE_NORMAL 121 } ch_state; 122 123 typedef enum { 124 CH_CCB_PROBE, 125 CH_CCB_WAITING 126 } ch_ccb_types; 127 128 typedef enum { 129 CH_Q_NONE = 0x00, 130 CH_Q_NO_DBD = 0x01 131 } ch_quirks; 132 133 #define ccb_state ppriv_field0 134 #define ccb_bio ppriv_ptr1 135 136 struct scsi_mode_sense_data { 137 struct scsi_mode_header_6 header; 138 struct scsi_mode_blk_desc blk_desc; 139 union { 140 struct page_element_address_assignment ea; 141 struct page_transport_geometry_parameters tg; 142 struct page_device_capabilities cap; 143 } pages; 144 }; 145 146 struct ch_softc { 147 ch_flags flags; 148 ch_state state; 149 ch_quirks quirks; 150 union ccb saved_ccb; 151 struct devstat device_stats; 152 153 int sc_picker; /* current picker */ 154 155 /* 156 * The following information is obtained from the 157 * element address assignment page. 158 */ 159 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 160 int sc_counts[4]; /* counts, indexed by CHET_* */ 161 162 /* 163 * The following mask defines the legal combinations 164 * of elements for the MOVE MEDIUM command. 165 */ 166 u_int8_t sc_movemask[4]; 167 168 /* 169 * As above, but for EXCHANGE MEDIUM. 170 */ 171 u_int8_t sc_exchangemask[4]; 172 173 /* 174 * Quirks; see below. XXX KDM not implemented yet 175 */ 176 int sc_settledelay; /* delay for settle */ 177 }; 178 179 #define CHUNIT(x) (minor((x))) 180 #define CH_CDEV_MAJOR 17 181 182 static d_open_t chopen; 183 static d_close_t chclose; 184 static d_ioctl_t chioctl; 185 static periph_init_t chinit; 186 static periph_ctor_t chregister; 187 static periph_oninv_t choninvalidate; 188 static periph_dtor_t chcleanup; 189 static periph_start_t chstart; 190 static void chasync(void *callback_arg, u_int32_t code, 191 struct cam_path *path, void *arg); 192 static void chdone(struct cam_periph *periph, 193 union ccb *done_ccb); 194 static int cherror(union ccb *ccb, u_int32_t cam_flags, 195 u_int32_t sense_flags); 196 static int chmove(struct cam_periph *periph, 197 struct changer_move *cm); 198 static int chexchange(struct cam_periph *periph, 199 struct changer_exchange *ce); 200 static int chposition(struct cam_periph *periph, 201 struct changer_position *cp); 202 static int chgetelemstatus(struct cam_periph *periph, 203 struct changer_element_status_request *csr); 204 static int chsetvoltag(struct cam_periph *periph, 205 struct changer_set_voltag_request *csvr); 206 static int chielem(struct cam_periph *periph, 207 unsigned int timeout); 208 static int chgetparams(struct cam_periph *periph); 209 210 static struct periph_driver chdriver = 211 { 212 chinit, "ch", 213 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 214 }; 215 216 DATA_SET(periphdriver_set, chdriver); 217 218 static struct cdevsw ch_cdevsw = { 219 /* name */ "ch", 220 /* maj */ CH_CDEV_MAJOR, 221 /* flags */ 0, 222 /* port */ NULL, 223 /* clone */ NULL, 224 225 /* open */ chopen, 226 /* close */ chclose, 227 /* read */ noread, 228 /* write */ nowrite, 229 /* ioctl */ chioctl, 230 /* poll */ nopoll, 231 /* mmap */ nommap, 232 /* strategy */ nostrategy, 233 /* dump */ nodump, 234 /* psize */ nopsize 235 }; 236 237 static struct extend_array *chperiphs; 238 239 void 240 chinit(void) 241 { 242 cam_status status; 243 struct cam_path *path; 244 245 /* 246 * Create our extend array for storing the devices we attach to. 247 */ 248 chperiphs = cam_extend_new(); 249 if (chperiphs == NULL) { 250 printf("ch: Failed to alloc extend array!\n"); 251 return; 252 } 253 254 /* 255 * Install a global async callback. This callback will 256 * receive async callbacks like "new device found". 257 */ 258 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 259 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 260 261 if (status == CAM_REQ_CMP) { 262 struct ccb_setasync csa; 263 264 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 265 csa.ccb_h.func_code = XPT_SASYNC_CB; 266 csa.event_enable = AC_FOUND_DEVICE; 267 csa.callback = chasync; 268 csa.callback_arg = NULL; 269 xpt_action((union ccb *)&csa); 270 status = csa.ccb_h.status; 271 xpt_free_path(path); 272 } 273 274 if (status != CAM_REQ_CMP) { 275 printf("ch: Failed to attach master async callback " 276 "due to status 0x%x!\n", status); 277 } 278 } 279 280 static void 281 choninvalidate(struct cam_periph *periph) 282 { 283 struct ch_softc *softc; 284 struct ccb_setasync csa; 285 286 softc = (struct ch_softc *)periph->softc; 287 288 /* 289 * De-register any async callbacks. 290 */ 291 xpt_setup_ccb(&csa.ccb_h, periph->path, 292 /* priority */ 5); 293 csa.ccb_h.func_code = XPT_SASYNC_CB; 294 csa.event_enable = 0; 295 csa.callback = chasync; 296 csa.callback_arg = periph; 297 xpt_action((union ccb *)&csa); 298 299 softc->flags |= CH_FLAG_INVALID; 300 301 xpt_print_path(periph->path); 302 printf("lost device\n"); 303 304 } 305 306 static void 307 chcleanup(struct cam_periph *periph) 308 { 309 struct ch_softc *softc; 310 311 softc = (struct ch_softc *)periph->softc; 312 313 devstat_remove_entry(&softc->device_stats); 314 cam_extend_release(chperiphs, periph->unit_number); 315 xpt_print_path(periph->path); 316 printf("removing device entry\n"); 317 cdevsw_remove(&ch_cdevsw, -1, periph->unit_number); 318 free(softc, M_DEVBUF); 319 } 320 321 static void 322 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 323 { 324 struct cam_periph *periph; 325 326 periph = (struct cam_periph *)callback_arg; 327 328 switch(code) { 329 case AC_FOUND_DEVICE: 330 { 331 struct ccb_getdev *cgd; 332 cam_status status; 333 334 cgd = (struct ccb_getdev *)arg; 335 336 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 337 break; 338 339 /* 340 * Allocate a peripheral instance for 341 * this device and start the probe 342 * process. 343 */ 344 status = cam_periph_alloc(chregister, choninvalidate, 345 chcleanup, chstart, "ch", 346 CAM_PERIPH_BIO, cgd->ccb_h.path, 347 chasync, AC_FOUND_DEVICE, cgd); 348 349 if (status != CAM_REQ_CMP 350 && status != CAM_REQ_INPROG) 351 printf("chasync: Unable to probe new device " 352 "due to status 0x%x\n", status); 353 354 break; 355 356 } 357 default: 358 cam_periph_async(periph, code, path, arg); 359 break; 360 } 361 } 362 363 static cam_status 364 chregister(struct cam_periph *periph, void *arg) 365 { 366 struct ch_softc *softc; 367 struct ccb_setasync csa; 368 struct ccb_getdev *cgd; 369 370 cgd = (struct ccb_getdev *)arg; 371 if (periph == NULL) { 372 printf("chregister: periph was NULL!!\n"); 373 return(CAM_REQ_CMP_ERR); 374 } 375 376 if (cgd == NULL) { 377 printf("chregister: no getdev CCB, can't register device\n"); 378 return(CAM_REQ_CMP_ERR); 379 } 380 381 softc = malloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 382 softc->state = CH_STATE_PROBE; 383 periph->softc = softc; 384 cam_extend_set(chperiphs, periph->unit_number, periph); 385 softc->quirks = CH_Q_NONE; 386 387 /* 388 * Changers don't have a blocksize, and obviously don't support 389 * tagged queueing. 390 */ 391 devstat_add_entry(&softc->device_stats, "ch", 392 periph->unit_number, 0, 393 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 394 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 395 DEVSTAT_PRIORITY_OTHER); 396 397 /* Register the device */ 398 cdevsw_add(&ch_cdevsw, -1, periph->unit_number); 399 make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 400 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 401 periph->unit_number); 402 403 /* 404 * Add an async callback so that we get 405 * notified if this device goes away. 406 */ 407 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 408 csa.ccb_h.func_code = XPT_SASYNC_CB; 409 csa.event_enable = AC_LOST_DEVICE; 410 csa.callback = chasync; 411 csa.callback_arg = periph; 412 xpt_action((union ccb *)&csa); 413 414 /* 415 * Lock this peripheral until we are setup. 416 * This first call can't block 417 */ 418 cam_periph_lock(periph, 0); 419 xpt_schedule(periph, /*priority*/5); 420 421 return(CAM_REQ_CMP); 422 } 423 424 static int 425 chopen(dev_t dev, int flags, int fmt, struct thread *td) 426 { 427 struct cam_periph *periph; 428 struct ch_softc *softc; 429 int unit, error; 430 431 unit = CHUNIT(dev); 432 periph = cam_extend_get(chperiphs, unit); 433 434 if (periph == NULL) 435 return(ENXIO); 436 437 softc = (struct ch_softc *)periph->softc; 438 439 crit_enter(); 440 if (softc->flags & CH_FLAG_INVALID) { 441 crit_exit(); 442 return(ENXIO); 443 } 444 445 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 446 crit_exit(); 447 return (error); 448 } 449 450 crit_exit(); 451 452 if ((softc->flags & CH_FLAG_OPEN) == 0) { 453 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 454 return(ENXIO); 455 softc->flags |= CH_FLAG_OPEN; 456 } 457 458 /* 459 * Load information about this changer device into the softc. 460 */ 461 if ((error = chgetparams(periph)) != 0) { 462 softc->flags &= ~CH_FLAG_OPEN; 463 cam_periph_unlock(periph); 464 cam_periph_release(periph); 465 return(error); 466 } 467 468 cam_periph_unlock(periph); 469 470 return(error); 471 } 472 473 static int 474 chclose(dev_t dev, int flag, int fmt, struct thread *td) 475 { 476 struct cam_periph *periph; 477 struct ch_softc *softc; 478 int unit, error; 479 480 error = 0; 481 482 unit = CHUNIT(dev); 483 periph = cam_extend_get(chperiphs, unit); 484 if (periph == NULL) 485 return(ENXIO); 486 487 softc = (struct ch_softc *)periph->softc; 488 489 if ((error = cam_periph_lock(periph, 0)) != 0) 490 return(error); 491 492 softc->flags &= ~CH_FLAG_OPEN; 493 494 cam_periph_unlock(periph); 495 cam_periph_release(periph); 496 497 return(0); 498 } 499 500 static void 501 chstart(struct cam_periph *periph, union ccb *start_ccb) 502 { 503 struct ch_softc *softc; 504 505 softc = (struct ch_softc *)periph->softc; 506 507 switch (softc->state) { 508 case CH_STATE_NORMAL: 509 { 510 crit_enter(); 511 if (periph->immediate_priority <= periph->pinfo.priority){ 512 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 513 514 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 515 periph_links.sle); 516 periph->immediate_priority = CAM_PRIORITY_NONE; 517 wakeup(&periph->ccb_list); 518 } 519 crit_exit(); 520 break; 521 } 522 case CH_STATE_PROBE: 523 { 524 int mode_buffer_len; 525 void *mode_buffer; 526 527 /* 528 * Include the block descriptor when calculating the mode 529 * buffer length, 530 */ 531 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 532 sizeof(struct scsi_mode_blk_desc) + 533 sizeof(struct page_element_address_assignment); 534 535 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO); 536 /* 537 * Get the element address assignment page. 538 */ 539 scsi_mode_sense(&start_ccb->csio, 540 /* retries */ 1, 541 /* cbfcnp */ chdone, 542 /* tag_action */ MSG_SIMPLE_Q_TAG, 543 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 544 FALSE : TRUE, 545 /* page_code */ SMS_PAGE_CTRL_CURRENT, 546 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 547 /* param_buf */ (u_int8_t *)mode_buffer, 548 /* param_len */ mode_buffer_len, 549 /* sense_len */ SSD_FULL_SIZE, 550 /* timeout */ CH_TIMEOUT_MODE_SENSE); 551 552 start_ccb->ccb_h.ccb_bio = NULL; 553 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 554 xpt_action(start_ccb); 555 break; 556 } 557 } 558 } 559 560 static void 561 chdone(struct cam_periph *periph, union ccb *done_ccb) 562 { 563 struct ch_softc *softc; 564 struct ccb_scsiio *csio; 565 566 softc = (struct ch_softc *)periph->softc; 567 csio = &done_ccb->csio; 568 569 switch(done_ccb->ccb_h.ccb_state) { 570 case CH_CCB_PROBE: 571 { 572 struct scsi_mode_header_6 *mode_header; 573 struct page_element_address_assignment *ea; 574 char announce_buf[80]; 575 576 577 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 578 579 ea = (struct page_element_address_assignment *) 580 find_mode_page_6(mode_header); 581 582 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 583 584 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 585 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 586 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 587 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 588 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 589 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 590 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 591 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 592 softc->sc_picker = softc->sc_firsts[CHET_MT]; 593 594 #define PLURAL(c) (c) == 1 ? "" : "s" 595 snprintf(announce_buf, sizeof(announce_buf), 596 "%d slot%s, %d drive%s, " 597 "%d picker%s, %d portal%s", 598 softc->sc_counts[CHET_ST], 599 PLURAL(softc->sc_counts[CHET_ST]), 600 softc->sc_counts[CHET_DT], 601 PLURAL(softc->sc_counts[CHET_DT]), 602 softc->sc_counts[CHET_MT], 603 PLURAL(softc->sc_counts[CHET_MT]), 604 softc->sc_counts[CHET_IE], 605 PLURAL(softc->sc_counts[CHET_IE])); 606 #undef PLURAL 607 } else { 608 int error; 609 610 error = cherror(done_ccb, 0, SF_RETRY_UA | 611 SF_NO_PRINT | SF_RETRY_SELTO); 612 /* 613 * Retry any UNIT ATTENTION type errors. They 614 * are expected at boot. 615 */ 616 if (error == ERESTART) { 617 /* 618 * A retry was scheuled, so 619 * just return. 620 */ 621 return; 622 } else if (error != 0) { 623 int retry_scheduled; 624 struct scsi_mode_sense_6 *sms; 625 626 sms = (struct scsi_mode_sense_6 *) 627 done_ccb->csio.cdb_io.cdb_bytes; 628 629 /* 630 * Check to see if block descriptors were 631 * disabled. Some devices don't like that. 632 * We're taking advantage of the fact that 633 * the first few bytes of the 6 and 10 byte 634 * mode sense commands are the same. If 635 * block descriptors were disabled, enable 636 * them and re-send the command. 637 */ 638 if (sms->byte2 & SMS_DBD) { 639 sms->byte2 &= ~SMS_DBD; 640 xpt_action(done_ccb); 641 softc->quirks |= CH_Q_NO_DBD; 642 retry_scheduled = 1; 643 } else 644 retry_scheduled = 0; 645 646 /* Don't wedge this device's queue */ 647 cam_release_devq(done_ccb->ccb_h.path, 648 /*relsim_flags*/0, 649 /*reduction*/0, 650 /*timeout*/0, 651 /*getcount_only*/0); 652 653 if (retry_scheduled) 654 return; 655 656 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 657 == CAM_SCSI_STATUS_ERROR) 658 scsi_sense_print(&done_ccb->csio); 659 else { 660 xpt_print_path(periph->path); 661 printf("got CAM status %#x\n", 662 done_ccb->ccb_h.status); 663 } 664 xpt_print_path(periph->path); 665 printf("fatal error, failed to attach to" 666 " device\n"); 667 668 cam_periph_invalidate(periph); 669 670 announce_buf[0] = '\0'; 671 } 672 } 673 if (announce_buf[0] != '\0') 674 xpt_announce_periph(periph, announce_buf); 675 softc->state = CH_STATE_NORMAL; 676 free(mode_header, M_TEMP); 677 /* 678 * Since our peripheral may be invalidated by an error 679 * above or an external event, we must release our CCB 680 * before releasing the probe lock on the peripheral. 681 * The peripheral will only go away once the last lock 682 * is removed, and we need it around for the CCB release 683 * operation. 684 */ 685 xpt_release_ccb(done_ccb); 686 cam_periph_unlock(periph); 687 return; 688 } 689 case CH_CCB_WAITING: 690 { 691 /* Caller will release the CCB */ 692 wakeup(&done_ccb->ccb_h.cbfcnp); 693 return; 694 } 695 default: 696 break; 697 } 698 xpt_release_ccb(done_ccb); 699 } 700 701 static int 702 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 703 { 704 struct ch_softc *softc; 705 struct cam_periph *periph; 706 707 periph = xpt_path_periph(ccb->ccb_h.path); 708 softc = (struct ch_softc *)periph->softc; 709 710 return (cam_periph_error(ccb, cam_flags, sense_flags, 711 &softc->saved_ccb)); 712 } 713 714 static int 715 chioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 716 { 717 struct cam_periph *periph; 718 struct ch_softc *softc; 719 u_int8_t unit; 720 int error; 721 722 unit = CHUNIT(dev); 723 724 periph = cam_extend_get(chperiphs, unit); 725 if (periph == NULL) 726 return(ENXIO); 727 728 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 729 730 softc = (struct ch_softc *)periph->softc; 731 732 error = 0; 733 734 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 735 ("trying to do ioctl %#lx\n", cmd)); 736 737 /* 738 * If this command can change the device's state, we must 739 * have the device open for writing. 740 */ 741 switch (cmd) { 742 case CHIOGPICKER: 743 case CHIOGPARAMS: 744 case CHIOGSTATUS: 745 break; 746 747 default: 748 if ((flag & FWRITE) == 0) 749 return (EBADF); 750 } 751 752 switch (cmd) { 753 case CHIOMOVE: 754 error = chmove(periph, (struct changer_move *)addr); 755 break; 756 757 case CHIOEXCHANGE: 758 error = chexchange(periph, (struct changer_exchange *)addr); 759 break; 760 761 case CHIOPOSITION: 762 error = chposition(periph, (struct changer_position *)addr); 763 break; 764 765 case CHIOGPICKER: 766 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 767 break; 768 769 case CHIOSPICKER: 770 { 771 int new_picker = *(int *)addr; 772 773 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) 774 return (EINVAL); 775 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 776 break; 777 } 778 case CHIOGPARAMS: 779 { 780 struct changer_params *cp = (struct changer_params *)addr; 781 782 cp->cp_npickers = softc->sc_counts[CHET_MT]; 783 cp->cp_nslots = softc->sc_counts[CHET_ST]; 784 cp->cp_nportals = softc->sc_counts[CHET_IE]; 785 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 786 break; 787 } 788 case CHIOIELEM: 789 error = chielem(periph, *(unsigned int *)addr); 790 break; 791 792 case CHIOGSTATUS: 793 { 794 error = chgetelemstatus(periph, 795 (struct changer_element_status_request *) addr); 796 break; 797 } 798 799 case CHIOSETVOLTAG: 800 { 801 error = chsetvoltag(periph, 802 (struct changer_set_voltag_request *) addr); 803 break; 804 } 805 806 /* Implement prevent/allow? */ 807 808 default: 809 error = cam_periph_ioctl(periph, cmd, addr, cherror); 810 break; 811 } 812 813 return (error); 814 } 815 816 static int 817 chmove(struct cam_periph *periph, struct changer_move *cm) 818 { 819 struct ch_softc *softc; 820 u_int16_t fromelem, toelem; 821 union ccb *ccb; 822 int error; 823 824 error = 0; 825 softc = (struct ch_softc *)periph->softc; 826 827 /* 828 * Check arguments. 829 */ 830 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 831 return (EINVAL); 832 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 833 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 834 return (ENODEV); 835 836 /* 837 * Check the request against the changer's capabilities. 838 */ 839 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 840 return (ENODEV); 841 842 /* 843 * Calculate the source and destination elements. 844 */ 845 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 846 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 847 848 ccb = cam_periph_getccb(periph, /*priority*/ 1); 849 850 scsi_move_medium(&ccb->csio, 851 /* retries */ 1, 852 /* cbfcnp */ chdone, 853 /* tag_action */ MSG_SIMPLE_Q_TAG, 854 /* tea */ softc->sc_picker, 855 /* src */ fromelem, 856 /* dst */ toelem, 857 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 858 /* sense_len */ SSD_FULL_SIZE, 859 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 860 861 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/0, 862 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 863 &softc->device_stats); 864 865 xpt_release_ccb(ccb); 866 867 return(error); 868 } 869 870 static int 871 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 872 { 873 struct ch_softc *softc; 874 u_int16_t src, dst1, dst2; 875 union ccb *ccb; 876 int error; 877 878 error = 0; 879 softc = (struct ch_softc *)periph->softc; 880 /* 881 * Check arguments. 882 */ 883 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 884 (ce->ce_sdsttype > CHET_DT)) 885 return (EINVAL); 886 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 887 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 888 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 889 return (ENODEV); 890 891 /* 892 * Check the request against the changer's capabilities. 893 */ 894 if (((softc->sc_exchangemask[ce->ce_srctype] & 895 (1 << ce->ce_fdsttype)) == 0) || 896 ((softc->sc_exchangemask[ce->ce_fdsttype] & 897 (1 << ce->ce_sdsttype)) == 0)) 898 return (ENODEV); 899 900 /* 901 * Calculate the source and destination elements. 902 */ 903 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 904 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 905 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 906 907 ccb = cam_periph_getccb(periph, /*priority*/ 1); 908 909 scsi_exchange_medium(&ccb->csio, 910 /* retries */ 1, 911 /* cbfcnp */ chdone, 912 /* tag_action */ MSG_SIMPLE_Q_TAG, 913 /* tea */ softc->sc_picker, 914 /* src */ src, 915 /* dst1 */ dst1, 916 /* dst2 */ dst2, 917 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 918 TRUE : FALSE, 919 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 920 TRUE : FALSE, 921 /* sense_len */ SSD_FULL_SIZE, 922 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 923 924 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/0, 925 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 926 &softc->device_stats); 927 928 xpt_release_ccb(ccb); 929 930 return(error); 931 } 932 933 static int 934 chposition(struct cam_periph *periph, struct changer_position *cp) 935 { 936 struct ch_softc *softc; 937 u_int16_t dst; 938 union ccb *ccb; 939 int error; 940 941 error = 0; 942 softc = (struct ch_softc *)periph->softc; 943 944 /* 945 * Check arguments. 946 */ 947 if (cp->cp_type > CHET_DT) 948 return (EINVAL); 949 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 950 return (ENODEV); 951 952 /* 953 * Calculate the destination element. 954 */ 955 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 956 957 ccb = cam_periph_getccb(periph, /*priority*/ 1); 958 959 scsi_position_to_element(&ccb->csio, 960 /* retries */ 1, 961 /* cbfcnp */ chdone, 962 /* tag_action */ MSG_SIMPLE_Q_TAG, 963 /* tea */ softc->sc_picker, 964 /* dst */ dst, 965 /* invert */ (cp->cp_flags & CP_INVERT) ? 966 TRUE : FALSE, 967 /* sense_len */ SSD_FULL_SIZE, 968 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 969 970 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 971 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 972 &softc->device_stats); 973 974 xpt_release_ccb(ccb); 975 976 return(error); 977 } 978 979 /* 980 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 981 * to host native byte order in the volume serial number. The volume 982 * label as returned by the changer is transferred to user mode as 983 * nul-terminated string. Volume labels are truncated at the first 984 * space, as suggested by SCSI-2. 985 */ 986 static void 987 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 988 { 989 int i; 990 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 991 char c = voltag->vif[i]; 992 if (c && c != ' ') 993 uvoltag->cv_volid[i] = c; 994 else 995 break; 996 } 997 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 998 } 999 1000 /* 1001 * Copy an an element status descriptor to a user-mode 1002 * changer_element_status structure. 1003 */ 1004 1005 static void 1006 copy_element_status(struct ch_softc *softc, 1007 u_int16_t flags, 1008 struct read_element_status_descriptor *desc, 1009 struct changer_element_status *ces) 1010 { 1011 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1012 u_int16_t et; 1013 1014 ces->ces_int_addr = eaddr; 1015 /* set up logical address in element status */ 1016 for (et = CHET_MT; et <= CHET_DT; et++) { 1017 if ((softc->sc_firsts[et] <= eaddr) 1018 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1019 > eaddr)) { 1020 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1021 ces->ces_type = et; 1022 break; 1023 } 1024 } 1025 1026 ces->ces_flags = desc->flags1; 1027 1028 ces->ces_sensecode = desc->sense_code; 1029 ces->ces_sensequal = desc->sense_qual; 1030 1031 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1032 ces->ces_flags |= CES_INVERT; 1033 1034 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1035 1036 eaddr = scsi_2btoul(desc->ssea); 1037 1038 /* convert source address to logical format */ 1039 for (et = CHET_MT; et <= CHET_DT; et++) { 1040 if ((softc->sc_firsts[et] <= eaddr) 1041 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1042 > eaddr)) { 1043 ces->ces_source_addr = 1044 eaddr - softc->sc_firsts[et]; 1045 ces->ces_source_type = et; 1046 ces->ces_flags |= CES_SOURCE_VALID; 1047 break; 1048 } 1049 } 1050 1051 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1052 printf("ch: warning: could not map element source " 1053 "address %ud to a valid element type\n", 1054 eaddr); 1055 } 1056 1057 1058 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1059 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1060 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1061 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1062 1063 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1064 ces->ces_flags |= CES_SCSIID_VALID; 1065 ces->ces_scsi_id = desc->dt_scsi_addr; 1066 } 1067 1068 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1069 ces->ces_flags |= CES_LUN_VALID; 1070 ces->ces_scsi_lun = 1071 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1072 } 1073 } 1074 1075 static int 1076 chgetelemstatus(struct cam_periph *periph, 1077 struct changer_element_status_request *cesr) 1078 { 1079 struct read_element_status_header *st_hdr; 1080 struct read_element_status_page_header *pg_hdr; 1081 struct read_element_status_descriptor *desc; 1082 caddr_t data = NULL; 1083 size_t size, desclen; 1084 int avail, i, error = 0; 1085 struct changer_element_status *user_data = NULL; 1086 struct ch_softc *softc; 1087 union ccb *ccb; 1088 int chet = cesr->cesr_element_type; 1089 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1090 1091 softc = (struct ch_softc *)periph->softc; 1092 1093 /* perform argument checking */ 1094 1095 /* 1096 * Perform a range check on the cesr_element_{base,count} 1097 * request argument fields. 1098 */ 1099 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1100 || (cesr->cesr_element_base + cesr->cesr_element_count) 1101 > softc->sc_counts[chet]) 1102 return (EINVAL); 1103 1104 /* 1105 * Request one descriptor for the given element type. This 1106 * is used to determine the size of the descriptor so that 1107 * we can allocate enough storage for all of them. We assume 1108 * that the first one can fit into 1k. 1109 */ 1110 data = (caddr_t)malloc(1024, M_DEVBUF, M_INTWAIT); 1111 1112 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1113 1114 scsi_read_element_status(&ccb->csio, 1115 /* retries */ 1, 1116 /* cbfcnp */ chdone, 1117 /* tag_action */ MSG_SIMPLE_Q_TAG, 1118 /* voltag */ want_voltags, 1119 /* sea */ softc->sc_firsts[chet], 1120 /* count */ 1, 1121 /* data_ptr */ data, 1122 /* dxfer_len */ 1024, 1123 /* sense_len */ SSD_FULL_SIZE, 1124 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1125 1126 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1127 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1128 &softc->device_stats); 1129 1130 if (error) 1131 goto done; 1132 1133 st_hdr = (struct read_element_status_header *)data; 1134 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1135 sizeof(struct read_element_status_header)); 1136 desclen = scsi_2btoul(pg_hdr->edl); 1137 1138 size = sizeof(struct read_element_status_header) + 1139 sizeof(struct read_element_status_page_header) + 1140 (desclen * cesr->cesr_element_count); 1141 1142 /* 1143 * Reallocate storage for descriptors and get them from the 1144 * device. 1145 */ 1146 free(data, M_DEVBUF); 1147 data = (caddr_t)malloc(size, M_DEVBUF, M_INTWAIT); 1148 1149 scsi_read_element_status(&ccb->csio, 1150 /* retries */ 1, 1151 /* cbfcnp */ chdone, 1152 /* tag_action */ MSG_SIMPLE_Q_TAG, 1153 /* voltag */ want_voltags, 1154 /* sea */ softc->sc_firsts[chet] 1155 + cesr->cesr_element_base, 1156 /* count */ cesr->cesr_element_count, 1157 /* data_ptr */ data, 1158 /* dxfer_len */ size, 1159 /* sense_len */ SSD_FULL_SIZE, 1160 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1161 1162 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1163 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1164 &softc->device_stats); 1165 1166 if (error) 1167 goto done; 1168 1169 /* 1170 * Fill in the user status array. 1171 */ 1172 st_hdr = (struct read_element_status_header *)data; 1173 avail = scsi_2btoul(st_hdr->count); 1174 1175 if (avail != cesr->cesr_element_count) { 1176 xpt_print_path(periph->path); 1177 printf("warning, READ ELEMENT STATUS avail != count\n"); 1178 } 1179 1180 user_data = (struct changer_element_status *) 1181 malloc(avail * sizeof(struct changer_element_status), 1182 M_DEVBUF, M_INTWAIT | M_ZERO); 1183 1184 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1185 sizeof(struct read_element_status_header) + 1186 sizeof(struct read_element_status_page_header)); 1187 /* 1188 * Set up the individual element status structures 1189 */ 1190 for (i = 0; i < avail; ++i) { 1191 struct changer_element_status *ces = &(user_data[i]); 1192 1193 copy_element_status(softc, pg_hdr->flags, desc, ces); 1194 1195 desc = (struct read_element_status_descriptor *) 1196 ((uintptr_t)desc + desclen); 1197 } 1198 1199 /* Copy element status structures out to userspace. */ 1200 error = copyout(user_data, 1201 cesr->cesr_element_status, 1202 avail * sizeof(struct changer_element_status)); 1203 1204 done: 1205 xpt_release_ccb(ccb); 1206 1207 if (data != NULL) 1208 free(data, M_DEVBUF); 1209 if (user_data != NULL) 1210 free(user_data, M_DEVBUF); 1211 1212 return (error); 1213 } 1214 1215 static int 1216 chielem(struct cam_periph *periph, 1217 unsigned int timeout) 1218 { 1219 union ccb *ccb; 1220 struct ch_softc *softc; 1221 int error; 1222 1223 if (!timeout) { 1224 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1225 } else { 1226 timeout *= 1000; 1227 } 1228 1229 error = 0; 1230 softc = (struct ch_softc *)periph->softc; 1231 1232 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1233 1234 scsi_initialize_element_status(&ccb->csio, 1235 /* retries */ 1, 1236 /* cbfcnp */ chdone, 1237 /* tag_action */ MSG_SIMPLE_Q_TAG, 1238 /* sense_len */ SSD_FULL_SIZE, 1239 /* timeout */ timeout); 1240 1241 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1242 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1243 &softc->device_stats); 1244 1245 xpt_release_ccb(ccb); 1246 1247 return(error); 1248 } 1249 1250 static int 1251 chsetvoltag(struct cam_periph *periph, 1252 struct changer_set_voltag_request *csvr) 1253 { 1254 union ccb *ccb; 1255 struct ch_softc *softc; 1256 u_int16_t ea; 1257 u_int8_t sac; 1258 struct scsi_send_volume_tag_parameters ssvtp; 1259 int error; 1260 int i; 1261 1262 error = 0; 1263 softc = (struct ch_softc *)periph->softc; 1264 1265 bzero(&ssvtp, sizeof(ssvtp)); 1266 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1267 ssvtp.vitf[i] = ' '; 1268 } 1269 1270 /* 1271 * Check arguments. 1272 */ 1273 if (csvr->csvr_type > CHET_DT) 1274 return EINVAL; 1275 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1276 return ENODEV; 1277 1278 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1279 1280 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1281 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1282 case CSVR_MODE_SET: 1283 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1284 break; 1285 case CSVR_MODE_REPLACE: 1286 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1287 break; 1288 case CSVR_MODE_CLEAR: 1289 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1290 break; 1291 default: 1292 error = EINVAL; 1293 goto out; 1294 } 1295 } else { 1296 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1297 case CSVR_MODE_SET: 1298 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1299 break; 1300 case CSVR_MODE_REPLACE: 1301 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1302 break; 1303 case CSVR_MODE_CLEAR: 1304 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1305 break; 1306 default: 1307 error = EINVAL; 1308 goto out; 1309 } 1310 } 1311 1312 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1313 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1314 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1315 1316 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1317 1318 scsi_send_volume_tag(&ccb->csio, 1319 /* retries */ 1, 1320 /* cbfcnp */ chdone, 1321 /* tag_action */ MSG_SIMPLE_Q_TAG, 1322 /* element_address */ ea, 1323 /* send_action_code */ sac, 1324 /* parameters */ &ssvtp, 1325 /* sense_len */ SSD_FULL_SIZE, 1326 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1327 1328 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1329 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1330 &softc->device_stats); 1331 1332 xpt_release_ccb(ccb); 1333 1334 out: 1335 return error; 1336 } 1337 1338 static int 1339 chgetparams(struct cam_periph *periph) 1340 { 1341 union ccb *ccb; 1342 struct ch_softc *softc; 1343 void *mode_buffer; 1344 int mode_buffer_len; 1345 struct page_element_address_assignment *ea; 1346 struct page_device_capabilities *cap; 1347 int error, from, dbd; 1348 u_int8_t *moves, *exchanges; 1349 1350 error = 0; 1351 1352 softc = (struct ch_softc *)periph->softc; 1353 1354 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1355 1356 /* 1357 * The scsi_mode_sense_data structure is just a convenience 1358 * structure that allows us to easily calculate the worst-case 1359 * storage size of the mode sense buffer. 1360 */ 1361 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1362 1363 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO); 1364 1365 if (softc->quirks & CH_Q_NO_DBD) 1366 dbd = FALSE; 1367 else 1368 dbd = TRUE; 1369 1370 /* 1371 * Get the element address assignment page. 1372 */ 1373 scsi_mode_sense(&ccb->csio, 1374 /* retries */ 1, 1375 /* cbfcnp */ chdone, 1376 /* tag_action */ MSG_SIMPLE_Q_TAG, 1377 /* dbd */ dbd, 1378 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1379 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1380 /* param_buf */ (u_int8_t *)mode_buffer, 1381 /* param_len */ mode_buffer_len, 1382 /* sense_len */ SSD_FULL_SIZE, 1383 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1384 1385 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1386 /* sense_flags */ SF_RETRY_UA | 1387 SF_NO_PRINT | SF_RETRY_SELTO, 1388 &softc->device_stats); 1389 1390 if (error) { 1391 if (dbd) { 1392 struct scsi_mode_sense_6 *sms; 1393 1394 sms = (struct scsi_mode_sense_6 *) 1395 ccb->csio.cdb_io.cdb_bytes; 1396 1397 sms->byte2 &= ~SMS_DBD; 1398 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1399 /*sense_flags*/ SF_RETRY_UA | 1400 SF_RETRY_SELTO, 1401 &softc->device_stats); 1402 } else { 1403 /* 1404 * Since we disabled sense printing above, print 1405 * out the sense here since we got an error. 1406 */ 1407 scsi_sense_print(&ccb->csio); 1408 } 1409 1410 if (error) { 1411 xpt_print_path(periph->path); 1412 printf("chgetparams: error getting element " 1413 "address page\n"); 1414 xpt_release_ccb(ccb); 1415 free(mode_buffer, M_TEMP); 1416 return(error); 1417 } 1418 } 1419 1420 ea = (struct page_element_address_assignment *) 1421 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1422 1423 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1424 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1425 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1426 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1427 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1428 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1429 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1430 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1431 1432 bzero(mode_buffer, mode_buffer_len); 1433 1434 /* 1435 * Now get the device capabilities page. 1436 */ 1437 scsi_mode_sense(&ccb->csio, 1438 /* retries */ 1, 1439 /* cbfcnp */ chdone, 1440 /* tag_action */ MSG_SIMPLE_Q_TAG, 1441 /* dbd */ dbd, 1442 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1443 /* page */ CH_DEVICE_CAP_PAGE, 1444 /* param_buf */ (u_int8_t *)mode_buffer, 1445 /* param_len */ mode_buffer_len, 1446 /* sense_len */ SSD_FULL_SIZE, 1447 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1448 1449 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1450 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT | 1451 SF_RETRY_SELTO, &softc->device_stats); 1452 1453 if (error) { 1454 if (dbd) { 1455 struct scsi_mode_sense_6 *sms; 1456 1457 sms = (struct scsi_mode_sense_6 *) 1458 ccb->csio.cdb_io.cdb_bytes; 1459 1460 sms->byte2 &= ~SMS_DBD; 1461 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1462 /*sense_flags*/ SF_RETRY_UA | 1463 SF_RETRY_SELTO, 1464 &softc->device_stats); 1465 } else { 1466 /* 1467 * Since we disabled sense printing above, print 1468 * out the sense here since we got an error. 1469 */ 1470 scsi_sense_print(&ccb->csio); 1471 } 1472 1473 if (error) { 1474 xpt_print_path(periph->path); 1475 printf("chgetparams: error getting device " 1476 "capabilities page\n"); 1477 xpt_release_ccb(ccb); 1478 free(mode_buffer, M_TEMP); 1479 return(error); 1480 } 1481 } 1482 1483 xpt_release_ccb(ccb); 1484 1485 cap = (struct page_device_capabilities *) 1486 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1487 1488 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1489 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1490 moves = &cap->move_from_mt; 1491 exchanges = &cap->exchange_with_mt; 1492 for (from = CHET_MT; from <= CHET_DT; ++from) { 1493 softc->sc_movemask[from] = moves[from]; 1494 softc->sc_exchangemask[from] = exchanges[from]; 1495 } 1496 1497 free(mode_buffer, M_TEMP); 1498 1499 return(error); 1500 } 1501 1502 void 1503 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1504 void (*cbfcnp)(struct cam_periph *, union ccb *), 1505 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1506 u_int32_t dst, int invert, u_int8_t sense_len, 1507 u_int32_t timeout) 1508 { 1509 struct scsi_move_medium *scsi_cmd; 1510 1511 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1512 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1513 1514 scsi_cmd->opcode = MOVE_MEDIUM; 1515 1516 scsi_ulto2b(tea, scsi_cmd->tea); 1517 scsi_ulto2b(src, scsi_cmd->src); 1518 scsi_ulto2b(dst, scsi_cmd->dst); 1519 1520 if (invert) 1521 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1522 1523 cam_fill_csio(csio, 1524 retries, 1525 cbfcnp, 1526 /*flags*/ CAM_DIR_NONE, 1527 tag_action, 1528 /*data_ptr*/ NULL, 1529 /*dxfer_len*/ 0, 1530 sense_len, 1531 sizeof(*scsi_cmd), 1532 timeout); 1533 } 1534 1535 void 1536 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1537 void (*cbfcnp)(struct cam_periph *, union ccb *), 1538 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1539 u_int32_t dst1, u_int32_t dst2, int invert1, 1540 int invert2, u_int8_t sense_len, u_int32_t timeout) 1541 { 1542 struct scsi_exchange_medium *scsi_cmd; 1543 1544 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1545 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1546 1547 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1548 1549 scsi_ulto2b(tea, scsi_cmd->tea); 1550 scsi_ulto2b(src, scsi_cmd->src); 1551 scsi_ulto2b(dst1, scsi_cmd->fdst); 1552 scsi_ulto2b(dst2, scsi_cmd->sdst); 1553 1554 if (invert1) 1555 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1556 1557 if (invert2) 1558 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1559 1560 cam_fill_csio(csio, 1561 retries, 1562 cbfcnp, 1563 /*flags*/ CAM_DIR_NONE, 1564 tag_action, 1565 /*data_ptr*/ NULL, 1566 /*dxfer_len*/ 0, 1567 sense_len, 1568 sizeof(*scsi_cmd), 1569 timeout); 1570 } 1571 1572 void 1573 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1574 void (*cbfcnp)(struct cam_periph *, union ccb *), 1575 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1576 int invert, u_int8_t sense_len, u_int32_t timeout) 1577 { 1578 struct scsi_position_to_element *scsi_cmd; 1579 1580 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1581 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1582 1583 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1584 1585 scsi_ulto2b(tea, scsi_cmd->tea); 1586 scsi_ulto2b(dst, scsi_cmd->dst); 1587 1588 if (invert) 1589 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1590 1591 cam_fill_csio(csio, 1592 retries, 1593 cbfcnp, 1594 /*flags*/ CAM_DIR_NONE, 1595 tag_action, 1596 /*data_ptr*/ NULL, 1597 /*dxfer_len*/ 0, 1598 sense_len, 1599 sizeof(*scsi_cmd), 1600 timeout); 1601 } 1602 1603 void 1604 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1605 void (*cbfcnp)(struct cam_periph *, union ccb *), 1606 u_int8_t tag_action, int voltag, u_int32_t sea, 1607 u_int32_t count, u_int8_t *data_ptr, 1608 u_int32_t dxfer_len, u_int8_t sense_len, 1609 u_int32_t timeout) 1610 { 1611 struct scsi_read_element_status *scsi_cmd; 1612 1613 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1614 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1615 1616 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1617 1618 scsi_ulto2b(sea, scsi_cmd->sea); 1619 scsi_ulto2b(count, scsi_cmd->count); 1620 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1621 1622 if (voltag) 1623 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1624 1625 cam_fill_csio(csio, 1626 retries, 1627 cbfcnp, 1628 /*flags*/ CAM_DIR_IN, 1629 tag_action, 1630 data_ptr, 1631 dxfer_len, 1632 sense_len, 1633 sizeof(*scsi_cmd), 1634 timeout); 1635 } 1636 1637 void 1638 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1639 void (*cbfcnp)(struct cam_periph *, union ccb *), 1640 u_int8_t tag_action, u_int8_t sense_len, 1641 u_int32_t timeout) 1642 { 1643 struct scsi_initialize_element_status *scsi_cmd; 1644 1645 scsi_cmd = (struct scsi_initialize_element_status *) 1646 &csio->cdb_io.cdb_bytes; 1647 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1648 1649 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1650 1651 cam_fill_csio(csio, 1652 retries, 1653 cbfcnp, 1654 /*flags*/ CAM_DIR_NONE, 1655 tag_action, 1656 /* data_ptr */ NULL, 1657 /* dxfer_len */ 0, 1658 sense_len, 1659 sizeof(*scsi_cmd), 1660 timeout); 1661 } 1662 1663 void 1664 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1665 void (*cbfcnp)(struct cam_periph *, union ccb *), 1666 u_int8_t tag_action, 1667 u_int16_t element_address, 1668 u_int8_t send_action_code, 1669 struct scsi_send_volume_tag_parameters *parameters, 1670 u_int8_t sense_len, u_int32_t timeout) 1671 { 1672 struct scsi_send_volume_tag *scsi_cmd; 1673 1674 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1675 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1676 1677 scsi_cmd->opcode = SEND_VOLUME_TAG; 1678 scsi_ulto2b(element_address, scsi_cmd->ea); 1679 scsi_cmd->sac = send_action_code; 1680 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1681 1682 cam_fill_csio(csio, 1683 retries, 1684 cbfcnp, 1685 /*flags*/ CAM_DIR_OUT, 1686 tag_action, 1687 /* data_ptr */ (u_int8_t *) parameters, 1688 sizeof(*parameters), 1689 sense_len, 1690 sizeof(*scsi_cmd), 1691 timeout); 1692 } 1693