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 1.28 2008/07/18 00:07:23 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/conf.h> 80 #include <sys/buf.h> 81 #include <sys/chio.h> 82 #include <sys/errno.h> 83 #include <sys/devicestat.h> 84 #include <sys/thread2.h> 85 86 #include "../cam.h" 87 #include "../cam_ccb.h" 88 #include "../cam_extend.h" 89 #include "../cam_periph.h" 90 #include "../cam_xpt_periph.h" 91 #include "../cam_queue.h" 92 #include "../cam_debug.h" 93 94 #include "scsi_all.h" 95 #include "scsi_message.h" 96 #include "scsi_ch.h" 97 98 /* 99 * Timeout definitions for various changer related commands. They may 100 * be too short for some devices (especially the timeout for INITIALIZE 101 * ELEMENT STATUS). 102 */ 103 104 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 105 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 106 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 107 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 108 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 109 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 110 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 111 112 typedef enum { 113 CH_FLAG_INVALID = 0x001, 114 CH_FLAG_OPEN = 0x002 115 } ch_flags; 116 117 typedef enum { 118 CH_STATE_PROBE, 119 CH_STATE_NORMAL 120 } ch_state; 121 122 typedef enum { 123 CH_CCB_PROBE, 124 CH_CCB_WAITING 125 } ch_ccb_types; 126 127 typedef enum { 128 CH_Q_NONE = 0x00, 129 CH_Q_NO_DBD = 0x01 130 } ch_quirks; 131 132 #define ccb_state ppriv_field0 133 #define ccb_bio ppriv_ptr1 134 135 struct scsi_mode_sense_data { 136 struct scsi_mode_header_6 header; 137 struct scsi_mode_blk_desc blk_desc; 138 union { 139 struct page_element_address_assignment ea; 140 struct page_transport_geometry_parameters tg; 141 struct page_device_capabilities cap; 142 } pages; 143 }; 144 145 struct ch_softc { 146 ch_flags flags; 147 ch_state state; 148 ch_quirks quirks; 149 union ccb saved_ccb; 150 struct devstat device_stats; 151 152 int sc_picker; /* current picker */ 153 154 /* 155 * The following information is obtained from the 156 * element address assignment page. 157 */ 158 int sc_firsts[CHET_MAX + 1]; /* firsts */ 159 int sc_counts[CHET_MAX + 1]; /* counts */ 160 161 /* 162 * The following mask defines the legal combinations 163 * of elements for the MOVE MEDIUM command. 164 */ 165 u_int8_t sc_movemask[CHET_MAX + 1]; 166 167 /* 168 * As above, but for EXCHANGE MEDIUM. 169 */ 170 u_int8_t sc_exchangemask[CHET_MAX + 1]; 171 172 /* 173 * Quirks; see below. XXX KDM not implemented yet 174 */ 175 int sc_settledelay; /* delay for settle */ 176 }; 177 178 #define CHUNIT(x) (minor((x))) 179 #define CH_CDEV_MAJOR 17 180 181 static d_open_t chopen; 182 static d_close_t chclose; 183 static d_ioctl_t chioctl; 184 static periph_init_t chinit; 185 static periph_ctor_t chregister; 186 static periph_oninv_t choninvalidate; 187 static periph_dtor_t chcleanup; 188 static periph_start_t chstart; 189 static void chasync(void *callback_arg, u_int32_t code, 190 struct cam_path *path, void *arg); 191 static void chdone(struct cam_periph *periph, 192 union ccb *done_ccb); 193 static int cherror(union ccb *ccb, u_int32_t cam_flags, 194 u_int32_t sense_flags); 195 static int chmove(struct cam_periph *periph, 196 struct changer_move *cm); 197 static int chexchange(struct cam_periph *periph, 198 struct changer_exchange *ce); 199 static int chposition(struct cam_periph *periph, 200 struct changer_position *cp); 201 static int chgetelemstatus(struct cam_periph *periph, 202 struct changer_element_status_request *csr); 203 static int chsetvoltag(struct cam_periph *periph, 204 struct changer_set_voltag_request *csvr); 205 static int chielem(struct cam_periph *periph, 206 unsigned int timeout); 207 static int chgetparams(struct cam_periph *periph); 208 209 static struct periph_driver chdriver = 210 { 211 chinit, "ch", 212 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 213 }; 214 215 PERIPHDRIVER_DECLARE(ch, chdriver); 216 217 static struct dev_ops ch_ops = { 218 { "ch", CH_CDEV_MAJOR, 0 }, 219 .d_open = chopen, 220 .d_close = chclose, 221 .d_ioctl = chioctl 222 }; 223 224 static struct extend_array *chperiphs; 225 226 MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers"); 227 228 static void 229 chinit(void) 230 { 231 cam_status status; 232 233 /* 234 * Create our extend array for storing the devices we attach to. 235 */ 236 chperiphs = cam_extend_new(); 237 if (chperiphs == NULL) { 238 kprintf("ch: Failed to alloc extend array!\n"); 239 return; 240 } 241 242 /* 243 * Install a global async callback. This callback will 244 * receive async callbacks like "new device found". 245 */ 246 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL); 247 248 if (status != CAM_REQ_CMP) { 249 kprintf("ch: Failed to attach master async callback " 250 "due to status 0x%x!\n", status); 251 } 252 } 253 254 static void 255 choninvalidate(struct cam_periph *periph) 256 { 257 struct ch_softc *softc; 258 259 softc = (struct ch_softc *)periph->softc; 260 261 /* 262 * De-register any async callbacks. 263 */ 264 xpt_register_async(0, chasync, periph, periph->path); 265 266 softc->flags |= CH_FLAG_INVALID; 267 268 xpt_print(periph->path, "lost device\n"); 269 270 } 271 272 static void 273 chcleanup(struct cam_periph *periph) 274 { 275 struct ch_softc *softc; 276 277 softc = (struct ch_softc *)periph->softc; 278 279 devstat_remove_entry(&softc->device_stats); 280 cam_extend_release(chperiphs, periph->unit_number); 281 xpt_print(periph->path, "removing device entry\n"); 282 dev_ops_remove(&ch_ops, -1, periph->unit_number); 283 kfree(softc, M_DEVBUF); 284 } 285 286 static void 287 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 288 { 289 struct cam_periph *periph; 290 291 periph = (struct cam_periph *)callback_arg; 292 293 switch(code) { 294 case AC_FOUND_DEVICE: 295 { 296 struct ccb_getdev *cgd; 297 cam_status status; 298 299 cgd = (struct ccb_getdev *)arg; 300 if (cgd == NULL) 301 break; 302 303 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 304 break; 305 306 /* 307 * Allocate a peripheral instance for 308 * this device and start the probe 309 * process. 310 */ 311 status = cam_periph_alloc(chregister, choninvalidate, 312 chcleanup, chstart, "ch", 313 CAM_PERIPH_BIO, cgd->ccb_h.path, 314 chasync, AC_FOUND_DEVICE, cgd); 315 316 if (status != CAM_REQ_CMP 317 && status != CAM_REQ_INPROG) 318 kprintf("chasync: Unable to probe new device " 319 "due to status 0x%x\n", status); 320 321 break; 322 323 } 324 default: 325 cam_periph_async(periph, code, path, arg); 326 break; 327 } 328 } 329 330 static cam_status 331 chregister(struct cam_periph *periph, void *arg) 332 { 333 struct ch_softc *softc; 334 struct ccb_getdev *cgd; 335 336 cgd = (struct ccb_getdev *)arg; 337 if (periph == NULL) { 338 kprintf("chregister: periph was NULL!!\n"); 339 return(CAM_REQ_CMP_ERR); 340 } 341 342 if (cgd == NULL) { 343 kprintf("chregister: no getdev CCB, can't register device\n"); 344 return(CAM_REQ_CMP_ERR); 345 } 346 347 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 348 softc->state = CH_STATE_PROBE; 349 periph->softc = softc; 350 cam_extend_set(chperiphs, periph->unit_number, periph); 351 softc->quirks = CH_Q_NONE; 352 353 /* 354 * Changers don't have a blocksize, and obviously don't support 355 * tagged queueing. 356 */ 357 cam_periph_unlock(periph); 358 devstat_add_entry(&softc->device_stats, "ch", 359 periph->unit_number, 0, 360 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 361 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 362 DEVSTAT_PRIORITY_OTHER); 363 364 /* Register the device */ 365 dev_ops_add(&ch_ops, -1, periph->unit_number); 366 make_dev(&ch_ops, periph->unit_number, UID_ROOT, 367 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 368 periph->unit_number); 369 cam_periph_lock(periph); 370 371 /* 372 * Add an async callback so that we get 373 * notified if this device goes away. 374 */ 375 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path); 376 377 /* 378 * Lock this periph until we are setup. 379 * This first call can't block 380 */ 381 cam_periph_hold(periph, 0); 382 xpt_schedule(periph, /*priority*/5); 383 384 return(CAM_REQ_CMP); 385 } 386 387 static int 388 chopen(struct dev_open_args *ap) 389 { 390 cdev_t dev = ap->a_head.a_dev; 391 struct cam_periph *periph; 392 struct ch_softc *softc; 393 int unit, error; 394 395 unit = CHUNIT(dev); 396 periph = cam_extend_get(chperiphs, unit); 397 398 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 399 return (ENXIO); 400 401 softc = (struct ch_softc *)periph->softc; 402 403 cam_periph_lock(periph); 404 405 if (softc->flags & CH_FLAG_INVALID) { 406 cam_periph_unlock(periph); 407 cam_periph_release(periph); 408 return(ENXIO); 409 } 410 411 if ((softc->flags & CH_FLAG_OPEN) == 0) 412 softc->flags |= CH_FLAG_OPEN; 413 else 414 cam_periph_release(periph); 415 416 if ((error = cam_periph_hold(periph, PCATCH)) != 0) { 417 cam_periph_unlock(periph); 418 cam_periph_release(periph); 419 return (error); 420 } 421 422 /* 423 * Load information about this changer device into the softc. 424 */ 425 if ((error = chgetparams(periph)) != 0) { 426 softc->flags &= ~CH_FLAG_OPEN; 427 cam_periph_unhold(periph, 1); 428 cam_periph_release(periph); 429 } else { 430 cam_periph_unhold(periph, 1); 431 } 432 433 return(error); 434 } 435 436 static int 437 chclose(struct dev_close_args *ap) 438 { 439 cdev_t dev = ap->a_head.a_dev; 440 struct cam_periph *periph; 441 struct ch_softc *softc; 442 int unit, error; 443 444 error = 0; 445 446 unit = CHUNIT(dev); 447 periph = cam_extend_get(chperiphs, unit); 448 if (periph == NULL) 449 return(ENXIO); 450 451 softc = (struct ch_softc *)periph->softc; 452 453 cam_periph_lock(periph); 454 455 softc->flags &= ~CH_FLAG_OPEN; 456 457 cam_periph_unlock(periph); 458 cam_periph_release(periph); 459 460 return(0); 461 } 462 463 static void 464 chstart(struct cam_periph *periph, union ccb *start_ccb) 465 { 466 struct ch_softc *softc; 467 468 softc = (struct ch_softc *)periph->softc; 469 470 switch (softc->state) { 471 case CH_STATE_NORMAL: 472 { 473 if (periph->immediate_priority <= periph->pinfo.priority){ 474 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 475 476 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 477 periph_links.sle); 478 periph->immediate_priority = CAM_PRIORITY_NONE; 479 wakeup(&periph->ccb_list); 480 } 481 break; 482 } 483 case CH_STATE_PROBE: 484 { 485 int mode_buffer_len; 486 void *mode_buffer; 487 488 /* 489 * Include the block descriptor when calculating the mode 490 * buffer length, 491 */ 492 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 493 sizeof(struct scsi_mode_blk_desc) + 494 sizeof(struct page_element_address_assignment); 495 496 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO); 497 /* 498 * Get the element address assignment page. 499 */ 500 scsi_mode_sense(&start_ccb->csio, 501 /* retries */ 1, 502 /* cbfcnp */ chdone, 503 /* tag_action */ MSG_SIMPLE_Q_TAG, 504 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 505 FALSE : TRUE, 506 /* page_code */ SMS_PAGE_CTRL_CURRENT, 507 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 508 /* param_buf */ (u_int8_t *)mode_buffer, 509 /* param_len */ mode_buffer_len, 510 /* sense_len */ SSD_FULL_SIZE, 511 /* timeout */ CH_TIMEOUT_MODE_SENSE); 512 513 start_ccb->ccb_h.ccb_bio = NULL; 514 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 515 xpt_action(start_ccb); 516 break; 517 } 518 } 519 } 520 521 static void 522 chdone(struct cam_periph *periph, union ccb *done_ccb) 523 { 524 struct ch_softc *softc; 525 struct ccb_scsiio *csio; 526 527 softc = (struct ch_softc *)periph->softc; 528 csio = &done_ccb->csio; 529 530 switch(done_ccb->ccb_h.ccb_state) { 531 case CH_CCB_PROBE: 532 { 533 struct scsi_mode_header_6 *mode_header; 534 struct page_element_address_assignment *ea; 535 char announce_buf[80]; 536 537 538 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 539 540 ea = (struct page_element_address_assignment *) 541 find_mode_page_6(mode_header); 542 543 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 544 545 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 546 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 547 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 548 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 549 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 550 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 551 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 552 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 553 softc->sc_picker = softc->sc_firsts[CHET_MT]; 554 555 #define PLURAL(c) (c) == 1 ? "" : "s" 556 ksnprintf(announce_buf, sizeof(announce_buf), 557 "%d slot%s, %d drive%s, " 558 "%d picker%s, %d portal%s", 559 softc->sc_counts[CHET_ST], 560 PLURAL(softc->sc_counts[CHET_ST]), 561 softc->sc_counts[CHET_DT], 562 PLURAL(softc->sc_counts[CHET_DT]), 563 softc->sc_counts[CHET_MT], 564 PLURAL(softc->sc_counts[CHET_MT]), 565 softc->sc_counts[CHET_IE], 566 PLURAL(softc->sc_counts[CHET_IE])); 567 #undef PLURAL 568 } else { 569 int error; 570 571 error = cherror(done_ccb, CAM_RETRY_SELTO, 572 SF_RETRY_UA | SF_NO_PRINT); 573 /* 574 * Retry any UNIT ATTENTION type errors. They 575 * are expected at boot. 576 */ 577 if (error == ERESTART) { 578 /* 579 * A retry was scheuled, so 580 * just return. 581 */ 582 return; 583 } else if (error != 0) { 584 int retry_scheduled; 585 struct scsi_mode_sense_6 *sms; 586 587 sms = (struct scsi_mode_sense_6 *) 588 done_ccb->csio.cdb_io.cdb_bytes; 589 590 /* 591 * Check to see if block descriptors were 592 * disabled. Some devices don't like that. 593 * We're taking advantage of the fact that 594 * the first few bytes of the 6 and 10 byte 595 * mode sense commands are the same. If 596 * block descriptors were disabled, enable 597 * them and re-send the command. 598 */ 599 if (sms->byte2 & SMS_DBD) { 600 sms->byte2 &= ~SMS_DBD; 601 xpt_action(done_ccb); 602 softc->quirks |= CH_Q_NO_DBD; 603 retry_scheduled = 1; 604 } else 605 retry_scheduled = 0; 606 607 /* Don't wedge this device's queue */ 608 cam_release_devq(done_ccb->ccb_h.path, 609 /*relsim_flags*/0, 610 /*reduction*/0, 611 /*timeout*/0, 612 /*getcount_only*/0); 613 614 if (retry_scheduled) 615 return; 616 617 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 618 == CAM_SCSI_STATUS_ERROR) 619 scsi_sense_print(&done_ccb->csio); 620 else { 621 xpt_print(periph->path, 622 "got CAM status %#x\n", 623 done_ccb->ccb_h.status); 624 } 625 xpt_print(periph->path, "fatal error, failed " 626 "to attach to device\n"); 627 628 cam_periph_invalidate(periph); 629 630 announce_buf[0] = '\0'; 631 } 632 } 633 if (announce_buf[0] != '\0') 634 xpt_announce_periph(periph, announce_buf); 635 softc->state = CH_STATE_NORMAL; 636 kfree(mode_header, M_SCSICH); 637 /* 638 * Since our peripheral may be invalidated by an error 639 * above or an external event, we must release our CCB 640 * before releasing the probe lock on the peripheral. 641 * The peripheral will only go away once the last lock 642 * is removed, and we need it around for the CCB release 643 * operation. 644 */ 645 xpt_release_ccb(done_ccb); 646 cam_periph_unhold(periph, 0); 647 return; 648 } 649 case CH_CCB_WAITING: 650 { 651 /* Caller will release the CCB */ 652 wakeup(&done_ccb->ccb_h.cbfcnp); 653 return; 654 } 655 default: 656 break; 657 } 658 xpt_release_ccb(done_ccb); 659 } 660 661 static int 662 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 663 { 664 struct ch_softc *softc; 665 struct cam_periph *periph; 666 667 periph = xpt_path_periph(ccb->ccb_h.path); 668 softc = (struct ch_softc *)periph->softc; 669 670 return (cam_periph_error(ccb, cam_flags, sense_flags, 671 &softc->saved_ccb)); 672 } 673 674 static int 675 chioctl(struct dev_ioctl_args *ap) 676 { 677 cdev_t dev = ap->a_head.a_dev; 678 caddr_t addr = ap->a_data; 679 int flag = ap->a_fflag; 680 struct cam_periph *periph; 681 struct ch_softc *softc; 682 u_int8_t unit; 683 int error; 684 685 unit = CHUNIT(dev); 686 687 periph = cam_extend_get(chperiphs, unit); 688 if (periph == NULL) 689 return(ENXIO); 690 691 cam_periph_lock(periph); 692 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 693 694 softc = (struct ch_softc *)periph->softc; 695 696 error = 0; 697 698 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 699 ("trying to do ioctl %#lx\n", ap->a_cmd)); 700 701 /* 702 * If this command can change the device's state, we must 703 * have the device open for writing. 704 */ 705 switch (ap->a_cmd) { 706 case CHIOGPICKER: 707 case CHIOGPARAMS: 708 case CHIOGSTATUS: 709 break; 710 711 default: 712 if ((flag & FWRITE) == 0) { 713 cam_periph_unlock(periph); 714 return (EBADF); 715 } 716 } 717 718 switch (ap->a_cmd) { 719 case CHIOMOVE: 720 error = chmove(periph, (struct changer_move *)addr); 721 break; 722 723 case CHIOEXCHANGE: 724 error = chexchange(periph, (struct changer_exchange *)addr); 725 break; 726 727 case CHIOPOSITION: 728 error = chposition(periph, (struct changer_position *)addr); 729 break; 730 731 case CHIOGPICKER: 732 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 733 break; 734 735 case CHIOSPICKER: 736 { 737 int new_picker = *(int *)addr; 738 739 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) { 740 error = EINVAL; 741 break; 742 } 743 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 744 break; 745 } 746 case CHIOGPARAMS: 747 { 748 struct changer_params *cp = (struct changer_params *)addr; 749 750 cp->cp_npickers = softc->sc_counts[CHET_MT]; 751 cp->cp_nslots = softc->sc_counts[CHET_ST]; 752 cp->cp_nportals = softc->sc_counts[CHET_IE]; 753 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 754 break; 755 } 756 case CHIOIELEM: 757 error = chielem(periph, *(unsigned int *)addr); 758 break; 759 760 case CHIOGSTATUS: 761 { 762 error = chgetelemstatus(periph, 763 (struct changer_element_status_request *) addr); 764 break; 765 } 766 767 case CHIOSETVOLTAG: 768 { 769 error = chsetvoltag(periph, 770 (struct changer_set_voltag_request *) addr); 771 break; 772 } 773 774 /* Implement prevent/allow? */ 775 776 default: 777 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror); 778 break; 779 } 780 781 cam_periph_unlock(periph); 782 return (error); 783 } 784 785 static int 786 chmove(struct cam_periph *periph, struct changer_move *cm) 787 { 788 struct ch_softc *softc; 789 u_int16_t fromelem, toelem; 790 union ccb *ccb; 791 int error; 792 793 error = 0; 794 softc = (struct ch_softc *)periph->softc; 795 796 /* 797 * Check arguments. 798 */ 799 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 800 return (EINVAL); 801 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 802 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 803 return (ENODEV); 804 805 /* 806 * Check the request against the changer's capabilities. 807 */ 808 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 809 return (ENODEV); 810 811 /* 812 * Calculate the source and destination elements. 813 */ 814 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 815 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 816 817 ccb = cam_periph_getccb(periph, /*priority*/ 1); 818 819 scsi_move_medium(&ccb->csio, 820 /* retries */ 1, 821 /* cbfcnp */ chdone, 822 /* tag_action */ MSG_SIMPLE_Q_TAG, 823 /* tea */ softc->sc_picker, 824 /* src */ fromelem, 825 /* dst */ toelem, 826 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 827 /* sense_len */ SSD_FULL_SIZE, 828 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 829 830 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 831 /*sense_flags*/ SF_RETRY_UA, 832 &softc->device_stats); 833 834 xpt_release_ccb(ccb); 835 836 return(error); 837 } 838 839 static int 840 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 841 { 842 struct ch_softc *softc; 843 u_int16_t src, dst1, dst2; 844 union ccb *ccb; 845 int error; 846 847 error = 0; 848 softc = (struct ch_softc *)periph->softc; 849 /* 850 * Check arguments. 851 */ 852 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 853 (ce->ce_sdsttype > CHET_DT)) 854 return (EINVAL); 855 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 856 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 857 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 858 return (ENODEV); 859 860 /* 861 * Check the request against the changer's capabilities. 862 */ 863 if (((softc->sc_exchangemask[ce->ce_srctype] & 864 (1 << ce->ce_fdsttype)) == 0) || 865 ((softc->sc_exchangemask[ce->ce_fdsttype] & 866 (1 << ce->ce_sdsttype)) == 0)) 867 return (ENODEV); 868 869 /* 870 * Calculate the source and destination elements. 871 */ 872 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 873 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 874 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 875 876 ccb = cam_periph_getccb(periph, /*priority*/ 1); 877 878 scsi_exchange_medium(&ccb->csio, 879 /* retries */ 1, 880 /* cbfcnp */ chdone, 881 /* tag_action */ MSG_SIMPLE_Q_TAG, 882 /* tea */ softc->sc_picker, 883 /* src */ src, 884 /* dst1 */ dst1, 885 /* dst2 */ dst2, 886 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 887 TRUE : FALSE, 888 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 889 TRUE : FALSE, 890 /* sense_len */ SSD_FULL_SIZE, 891 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 892 893 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 894 /*sense_flags*/ SF_RETRY_UA, 895 &softc->device_stats); 896 897 xpt_release_ccb(ccb); 898 899 return(error); 900 } 901 902 static int 903 chposition(struct cam_periph *periph, struct changer_position *cp) 904 { 905 struct ch_softc *softc; 906 u_int16_t dst; 907 union ccb *ccb; 908 int error; 909 910 error = 0; 911 softc = (struct ch_softc *)periph->softc; 912 913 /* 914 * Check arguments. 915 */ 916 if (cp->cp_type > CHET_DT) 917 return (EINVAL); 918 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 919 return (ENODEV); 920 921 /* 922 * Calculate the destination element. 923 */ 924 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 925 926 ccb = cam_periph_getccb(periph, /*priority*/ 1); 927 928 scsi_position_to_element(&ccb->csio, 929 /* retries */ 1, 930 /* cbfcnp */ chdone, 931 /* tag_action */ MSG_SIMPLE_Q_TAG, 932 /* tea */ softc->sc_picker, 933 /* dst */ dst, 934 /* invert */ (cp->cp_flags & CP_INVERT) ? 935 TRUE : FALSE, 936 /* sense_len */ SSD_FULL_SIZE, 937 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 938 939 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 940 /*sense_flags*/ SF_RETRY_UA, 941 &softc->device_stats); 942 943 xpt_release_ccb(ccb); 944 945 return(error); 946 } 947 948 /* 949 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 950 * to host native byte order in the volume serial number. The volume 951 * label as returned by the changer is transferred to user mode as 952 * nul-terminated string. Volume labels are truncated at the first 953 * space, as suggested by SCSI-2. 954 */ 955 static void 956 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 957 { 958 int i; 959 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 960 char c = voltag->vif[i]; 961 if (c && c != ' ') 962 uvoltag->cv_volid[i] = c; 963 else 964 break; 965 } 966 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 967 } 968 969 /* 970 * Copy an an element status descriptor to a user-mode 971 * changer_element_status structure. 972 */ 973 974 static void 975 copy_element_status(struct ch_softc *softc, 976 u_int16_t flags, 977 struct read_element_status_descriptor *desc, 978 struct changer_element_status *ces) 979 { 980 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 981 u_int16_t et; 982 983 ces->ces_int_addr = eaddr; 984 /* set up logical address in element status */ 985 for (et = CHET_MT; et <= CHET_DT; et++) { 986 if ((softc->sc_firsts[et] <= eaddr) 987 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 988 > eaddr)) { 989 ces->ces_addr = eaddr - softc->sc_firsts[et]; 990 ces->ces_type = et; 991 break; 992 } 993 } 994 995 ces->ces_flags = desc->flags1; 996 997 ces->ces_sensecode = desc->sense_code; 998 ces->ces_sensequal = desc->sense_qual; 999 1000 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1001 ces->ces_flags |= CES_INVERT; 1002 1003 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1004 1005 eaddr = scsi_2btoul(desc->ssea); 1006 1007 /* convert source address to logical format */ 1008 for (et = CHET_MT; et <= CHET_DT; et++) { 1009 if ((softc->sc_firsts[et] <= eaddr) 1010 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1011 > eaddr)) { 1012 ces->ces_source_addr = 1013 eaddr - softc->sc_firsts[et]; 1014 ces->ces_source_type = et; 1015 ces->ces_flags |= CES_SOURCE_VALID; 1016 break; 1017 } 1018 } 1019 1020 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1021 kprintf("ch: warning: could not map element source " 1022 "address %ud to a valid element type\n", 1023 eaddr); 1024 } 1025 1026 1027 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1028 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1029 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1030 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1031 1032 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1033 ces->ces_flags |= CES_SCSIID_VALID; 1034 ces->ces_scsi_id = desc->dt_scsi_addr; 1035 } 1036 1037 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1038 ces->ces_flags |= CES_LUN_VALID; 1039 ces->ces_scsi_lun = 1040 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1041 } 1042 } 1043 1044 static int 1045 chgetelemstatus(struct cam_periph *periph, 1046 struct changer_element_status_request *cesr) 1047 { 1048 struct read_element_status_header *st_hdr; 1049 struct read_element_status_page_header *pg_hdr; 1050 struct read_element_status_descriptor *desc; 1051 caddr_t data = NULL; 1052 size_t size, desclen; 1053 int avail, i, error = 0; 1054 struct changer_element_status *user_data = NULL; 1055 struct ch_softc *softc; 1056 union ccb *ccb; 1057 int chet = cesr->cesr_element_type; 1058 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1059 1060 softc = (struct ch_softc *)periph->softc; 1061 1062 /* perform argument checking */ 1063 1064 /* 1065 * Perform a range check on the cesr_element_{base,count} 1066 * request argument fields. 1067 */ 1068 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1069 || (cesr->cesr_element_base + cesr->cesr_element_count) 1070 > softc->sc_counts[chet]) 1071 return (EINVAL); 1072 1073 /* 1074 * Request one descriptor for the given element type. This 1075 * is used to determine the size of the descriptor so that 1076 * we can allocate enough storage for all of them. We assume 1077 * that the first one can fit into 1k. 1078 */ 1079 cam_periph_unlock(periph); 1080 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT); 1081 1082 cam_periph_lock(periph); 1083 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1084 1085 scsi_read_element_status(&ccb->csio, 1086 /* retries */ 1, 1087 /* cbfcnp */ chdone, 1088 /* tag_action */ MSG_SIMPLE_Q_TAG, 1089 /* voltag */ want_voltags, 1090 /* sea */ softc->sc_firsts[chet], 1091 /* count */ 1, 1092 /* data_ptr */ data, 1093 /* dxfer_len */ 1024, 1094 /* sense_len */ SSD_FULL_SIZE, 1095 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1096 1097 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1098 /*sense_flags*/ SF_RETRY_UA, 1099 &softc->device_stats); 1100 1101 if (error) 1102 goto done; 1103 cam_periph_unlock(periph); 1104 1105 st_hdr = (struct read_element_status_header *)data; 1106 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1107 sizeof(struct read_element_status_header)); 1108 desclen = scsi_2btoul(pg_hdr->edl); 1109 1110 size = sizeof(struct read_element_status_header) + 1111 sizeof(struct read_element_status_page_header) + 1112 (desclen * cesr->cesr_element_count); 1113 1114 /* 1115 * Reallocate storage for descriptors and get them from the 1116 * device. 1117 */ 1118 kfree(data, M_DEVBUF); 1119 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT); 1120 1121 cam_periph_lock(periph); 1122 scsi_read_element_status(&ccb->csio, 1123 /* retries */ 1, 1124 /* cbfcnp */ chdone, 1125 /* tag_action */ MSG_SIMPLE_Q_TAG, 1126 /* voltag */ want_voltags, 1127 /* sea */ softc->sc_firsts[chet] 1128 + cesr->cesr_element_base, 1129 /* count */ cesr->cesr_element_count, 1130 /* data_ptr */ data, 1131 /* dxfer_len */ size, 1132 /* sense_len */ SSD_FULL_SIZE, 1133 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1134 1135 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1136 /*sense_flags*/ SF_RETRY_UA, 1137 &softc->device_stats); 1138 1139 if (error) 1140 goto done; 1141 cam_periph_unlock(periph); 1142 1143 /* 1144 * Fill in the user status array. 1145 */ 1146 st_hdr = (struct read_element_status_header *)data; 1147 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1148 sizeof(struct read_element_status_header)); 1149 avail = scsi_2btoul(st_hdr->count); 1150 1151 if (avail != cesr->cesr_element_count) { 1152 xpt_print(periph->path, 1153 "warning, READ ELEMENT STATUS avail != count\n"); 1154 } 1155 1156 user_data = (struct changer_element_status *) 1157 kmalloc(avail * sizeof(struct changer_element_status), 1158 M_DEVBUF, M_INTWAIT | M_ZERO); 1159 1160 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1161 sizeof(struct read_element_status_header) + 1162 sizeof(struct read_element_status_page_header)); 1163 /* 1164 * Set up the individual element status structures 1165 */ 1166 for (i = 0; i < avail; ++i) { 1167 struct changer_element_status *ces = &(user_data[i]); 1168 1169 copy_element_status(softc, pg_hdr->flags, desc, ces); 1170 1171 desc = (struct read_element_status_descriptor *) 1172 ((uintptr_t)desc + desclen); 1173 } 1174 1175 /* Copy element status structures out to userspace. */ 1176 error = copyout(user_data, 1177 cesr->cesr_element_status, 1178 avail * sizeof(struct changer_element_status)); 1179 cam_periph_lock(periph); 1180 1181 done: 1182 xpt_release_ccb(ccb); 1183 1184 if (data != NULL) 1185 kfree(data, M_DEVBUF); 1186 if (user_data != NULL) 1187 kfree(user_data, M_DEVBUF); 1188 1189 return (error); 1190 } 1191 1192 static int 1193 chielem(struct cam_periph *periph, 1194 unsigned int timeout) 1195 { 1196 union ccb *ccb; 1197 struct ch_softc *softc; 1198 int error; 1199 1200 if (!timeout) { 1201 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1202 } else { 1203 timeout *= 1000; 1204 } 1205 1206 error = 0; 1207 softc = (struct ch_softc *)periph->softc; 1208 1209 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1210 1211 scsi_initialize_element_status(&ccb->csio, 1212 /* retries */ 1, 1213 /* cbfcnp */ chdone, 1214 /* tag_action */ MSG_SIMPLE_Q_TAG, 1215 /* sense_len */ SSD_FULL_SIZE, 1216 /* timeout */ timeout); 1217 1218 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1219 /*sense_flags*/ SF_RETRY_UA, 1220 &softc->device_stats); 1221 1222 xpt_release_ccb(ccb); 1223 1224 return(error); 1225 } 1226 1227 static int 1228 chsetvoltag(struct cam_periph *periph, 1229 struct changer_set_voltag_request *csvr) 1230 { 1231 union ccb *ccb; 1232 struct ch_softc *softc; 1233 u_int16_t ea; 1234 u_int8_t sac; 1235 struct scsi_send_volume_tag_parameters ssvtp; 1236 int error; 1237 int i; 1238 1239 error = 0; 1240 softc = (struct ch_softc *)periph->softc; 1241 1242 bzero(&ssvtp, sizeof(ssvtp)); 1243 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1244 ssvtp.vitf[i] = ' '; 1245 } 1246 1247 /* 1248 * Check arguments. 1249 */ 1250 if (csvr->csvr_type > CHET_DT) 1251 return EINVAL; 1252 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1253 return ENODEV; 1254 1255 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1256 1257 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1258 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1259 case CSVR_MODE_SET: 1260 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1261 break; 1262 case CSVR_MODE_REPLACE: 1263 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1264 break; 1265 case CSVR_MODE_CLEAR: 1266 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1267 break; 1268 default: 1269 error = EINVAL; 1270 goto out; 1271 } 1272 } else { 1273 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1274 case CSVR_MODE_SET: 1275 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1276 break; 1277 case CSVR_MODE_REPLACE: 1278 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1279 break; 1280 case CSVR_MODE_CLEAR: 1281 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1282 break; 1283 default: 1284 error = EINVAL; 1285 goto out; 1286 } 1287 } 1288 1289 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1290 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1291 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1292 1293 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1294 1295 scsi_send_volume_tag(&ccb->csio, 1296 /* retries */ 1, 1297 /* cbfcnp */ chdone, 1298 /* tag_action */ MSG_SIMPLE_Q_TAG, 1299 /* element_address */ ea, 1300 /* send_action_code */ sac, 1301 /* parameters */ &ssvtp, 1302 /* sense_len */ SSD_FULL_SIZE, 1303 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1304 1305 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1306 /*sense_flags*/ SF_RETRY_UA, 1307 &softc->device_stats); 1308 1309 xpt_release_ccb(ccb); 1310 1311 out: 1312 return error; 1313 } 1314 1315 static int 1316 chgetparams(struct cam_periph *periph) 1317 { 1318 union ccb *ccb; 1319 struct ch_softc *softc; 1320 void *mode_buffer; 1321 int mode_buffer_len; 1322 struct page_element_address_assignment *ea; 1323 struct page_device_capabilities *cap; 1324 int error, from, dbd; 1325 u_int8_t *moves, *exchanges; 1326 1327 error = 0; 1328 1329 softc = (struct ch_softc *)periph->softc; 1330 1331 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1332 1333 /* 1334 * The scsi_mode_sense_data structure is just a convenience 1335 * structure that allows us to easily calculate the worst-case 1336 * storage size of the mode sense buffer. 1337 */ 1338 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1339 1340 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO); 1341 1342 if (softc->quirks & CH_Q_NO_DBD) 1343 dbd = FALSE; 1344 else 1345 dbd = TRUE; 1346 1347 /* 1348 * Get the element address assignment page. 1349 */ 1350 scsi_mode_sense(&ccb->csio, 1351 /* retries */ 1, 1352 /* cbfcnp */ chdone, 1353 /* tag_action */ MSG_SIMPLE_Q_TAG, 1354 /* dbd */ dbd, 1355 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1356 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1357 /* param_buf */ (u_int8_t *)mode_buffer, 1358 /* param_len */ mode_buffer_len, 1359 /* sense_len */ SSD_FULL_SIZE, 1360 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1361 1362 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1363 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1364 &softc->device_stats); 1365 1366 if (error) { 1367 if (dbd) { 1368 struct scsi_mode_sense_6 *sms; 1369 1370 sms = (struct scsi_mode_sense_6 *) 1371 ccb->csio.cdb_io.cdb_bytes; 1372 1373 sms->byte2 &= ~SMS_DBD; 1374 error = cam_periph_runccb(ccb, cherror, 1375 /*cam_flags*/ CAM_RETRY_SELTO, 1376 /*sense_flags*/ SF_RETRY_UA, 1377 &softc->device_stats); 1378 } else { 1379 /* 1380 * Since we disabled sense printing above, print 1381 * out the sense here since we got an error. 1382 */ 1383 scsi_sense_print(&ccb->csio); 1384 } 1385 1386 if (error) { 1387 xpt_print(periph->path, 1388 "chgetparams: error getting element " 1389 "address page\n"); 1390 xpt_release_ccb(ccb); 1391 kfree(mode_buffer, M_SCSICH); 1392 return(error); 1393 } 1394 } 1395 1396 ea = (struct page_element_address_assignment *) 1397 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1398 1399 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1400 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1401 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1402 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1403 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1404 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1405 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1406 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1407 1408 bzero(mode_buffer, mode_buffer_len); 1409 1410 /* 1411 * Now get the device capabilities page. 1412 */ 1413 scsi_mode_sense(&ccb->csio, 1414 /* retries */ 1, 1415 /* cbfcnp */ chdone, 1416 /* tag_action */ MSG_SIMPLE_Q_TAG, 1417 /* dbd */ dbd, 1418 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1419 /* page */ CH_DEVICE_CAP_PAGE, 1420 /* param_buf */ (u_int8_t *)mode_buffer, 1421 /* param_len */ mode_buffer_len, 1422 /* sense_len */ SSD_FULL_SIZE, 1423 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1424 1425 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1426 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1427 &softc->device_stats); 1428 1429 if (error) { 1430 if (dbd) { 1431 struct scsi_mode_sense_6 *sms; 1432 1433 sms = (struct scsi_mode_sense_6 *) 1434 ccb->csio.cdb_io.cdb_bytes; 1435 1436 sms->byte2 &= ~SMS_DBD; 1437 error = cam_periph_runccb(ccb, cherror, 1438 /*cam_flags*/ CAM_RETRY_SELTO, 1439 /*sense_flags*/ SF_RETRY_UA, 1440 &softc->device_stats); 1441 } else { 1442 /* 1443 * Since we disabled sense printing above, print 1444 * out the sense here since we got an error. 1445 */ 1446 scsi_sense_print(&ccb->csio); 1447 } 1448 1449 if (error) { 1450 xpt_print(periph->path, 1451 "chgetparams: error getting device " 1452 "capabilities page\n"); 1453 xpt_release_ccb(ccb); 1454 kfree(mode_buffer, M_SCSICH); 1455 return(error); 1456 } 1457 } 1458 1459 xpt_release_ccb(ccb); 1460 1461 cap = (struct page_device_capabilities *) 1462 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1463 1464 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1465 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1466 moves = cap->move_from; 1467 exchanges = cap->exchange_with; 1468 for (from = CHET_MT; from <= CHET_MAX; ++from) { 1469 softc->sc_movemask[from] = moves[from]; 1470 softc->sc_exchangemask[from] = exchanges[from]; 1471 } 1472 1473 kfree(mode_buffer, M_SCSICH); 1474 1475 return(error); 1476 } 1477 1478 void 1479 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1480 void (*cbfcnp)(struct cam_periph *, union ccb *), 1481 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1482 u_int32_t dst, int invert, u_int8_t sense_len, 1483 u_int32_t timeout) 1484 { 1485 struct scsi_move_medium *scsi_cmd; 1486 1487 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1488 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1489 1490 scsi_cmd->opcode = MOVE_MEDIUM; 1491 1492 scsi_ulto2b(tea, scsi_cmd->tea); 1493 scsi_ulto2b(src, scsi_cmd->src); 1494 scsi_ulto2b(dst, scsi_cmd->dst); 1495 1496 if (invert) 1497 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1498 1499 cam_fill_csio(csio, 1500 retries, 1501 cbfcnp, 1502 /*flags*/ CAM_DIR_NONE, 1503 tag_action, 1504 /*data_ptr*/ NULL, 1505 /*dxfer_len*/ 0, 1506 sense_len, 1507 sizeof(*scsi_cmd), 1508 timeout); 1509 } 1510 1511 void 1512 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1513 void (*cbfcnp)(struct cam_periph *, union ccb *), 1514 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1515 u_int32_t dst1, u_int32_t dst2, int invert1, 1516 int invert2, u_int8_t sense_len, u_int32_t timeout) 1517 { 1518 struct scsi_exchange_medium *scsi_cmd; 1519 1520 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1521 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1522 1523 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1524 1525 scsi_ulto2b(tea, scsi_cmd->tea); 1526 scsi_ulto2b(src, scsi_cmd->src); 1527 scsi_ulto2b(dst1, scsi_cmd->fdst); 1528 scsi_ulto2b(dst2, scsi_cmd->sdst); 1529 1530 if (invert1) 1531 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1532 1533 if (invert2) 1534 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1535 1536 cam_fill_csio(csio, 1537 retries, 1538 cbfcnp, 1539 /*flags*/ CAM_DIR_NONE, 1540 tag_action, 1541 /*data_ptr*/ NULL, 1542 /*dxfer_len*/ 0, 1543 sense_len, 1544 sizeof(*scsi_cmd), 1545 timeout); 1546 } 1547 1548 void 1549 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1550 void (*cbfcnp)(struct cam_periph *, union ccb *), 1551 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1552 int invert, u_int8_t sense_len, u_int32_t timeout) 1553 { 1554 struct scsi_position_to_element *scsi_cmd; 1555 1556 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1557 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1558 1559 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1560 1561 scsi_ulto2b(tea, scsi_cmd->tea); 1562 scsi_ulto2b(dst, scsi_cmd->dst); 1563 1564 if (invert) 1565 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1566 1567 cam_fill_csio(csio, 1568 retries, 1569 cbfcnp, 1570 /*flags*/ CAM_DIR_NONE, 1571 tag_action, 1572 /*data_ptr*/ NULL, 1573 /*dxfer_len*/ 0, 1574 sense_len, 1575 sizeof(*scsi_cmd), 1576 timeout); 1577 } 1578 1579 void 1580 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1581 void (*cbfcnp)(struct cam_periph *, union ccb *), 1582 u_int8_t tag_action, int voltag, u_int32_t sea, 1583 u_int32_t count, u_int8_t *data_ptr, 1584 u_int32_t dxfer_len, u_int8_t sense_len, 1585 u_int32_t timeout) 1586 { 1587 struct scsi_read_element_status *scsi_cmd; 1588 1589 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1590 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1591 1592 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1593 1594 scsi_ulto2b(sea, scsi_cmd->sea); 1595 scsi_ulto2b(count, scsi_cmd->count); 1596 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1597 1598 if (voltag) 1599 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1600 1601 cam_fill_csio(csio, 1602 retries, 1603 cbfcnp, 1604 /*flags*/ CAM_DIR_IN, 1605 tag_action, 1606 data_ptr, 1607 dxfer_len, 1608 sense_len, 1609 sizeof(*scsi_cmd), 1610 timeout); 1611 } 1612 1613 void 1614 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1615 void (*cbfcnp)(struct cam_periph *, union ccb *), 1616 u_int8_t tag_action, u_int8_t sense_len, 1617 u_int32_t timeout) 1618 { 1619 struct scsi_initialize_element_status *scsi_cmd; 1620 1621 scsi_cmd = (struct scsi_initialize_element_status *) 1622 &csio->cdb_io.cdb_bytes; 1623 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1624 1625 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1626 1627 cam_fill_csio(csio, 1628 retries, 1629 cbfcnp, 1630 /*flags*/ CAM_DIR_NONE, 1631 tag_action, 1632 /* data_ptr */ NULL, 1633 /* dxfer_len */ 0, 1634 sense_len, 1635 sizeof(*scsi_cmd), 1636 timeout); 1637 } 1638 1639 void 1640 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1641 void (*cbfcnp)(struct cam_periph *, union ccb *), 1642 u_int8_t tag_action, 1643 u_int16_t element_address, 1644 u_int8_t send_action_code, 1645 struct scsi_send_volume_tag_parameters *parameters, 1646 u_int8_t sense_len, u_int32_t timeout) 1647 { 1648 struct scsi_send_volume_tag *scsi_cmd; 1649 1650 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1651 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1652 1653 scsi_cmd->opcode = SEND_VOLUME_TAG; 1654 scsi_ulto2b(element_address, scsi_cmd->ea); 1655 scsi_cmd->sac = send_action_code; 1656 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1657 1658 cam_fill_csio(csio, 1659 retries, 1660 cbfcnp, 1661 /*flags*/ CAM_DIR_OUT, 1662 tag_action, 1663 /* data_ptr */ (u_int8_t *) parameters, 1664 sizeof(*parameters), 1665 sense_len, 1666 sizeof(*scsi_cmd), 1667 timeout); 1668 } 1669