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