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 84 #include "../cam.h" 85 #include "../cam_ccb.h" 86 #include "../cam_extend.h" 87 #include "../cam_periph.h" 88 #include "../cam_xpt_periph.h" 89 #include "../cam_queue.h" 90 #include "../cam_debug.h" 91 92 #include "scsi_all.h" 93 #include "scsi_message.h" 94 #include "scsi_ch.h" 95 96 /* 97 * Timeout definitions for various changer related commands. They may 98 * be too short for some devices (especially the timeout for INITIALIZE 99 * ELEMENT STATUS). 100 */ 101 102 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 103 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 104 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 105 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 106 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 107 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 108 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 109 110 typedef enum { 111 CH_FLAG_INVALID = 0x001, 112 CH_FLAG_OPEN = 0x002 113 } ch_flags; 114 115 typedef enum { 116 CH_STATE_PROBE, 117 CH_STATE_NORMAL 118 } ch_state; 119 120 typedef enum { 121 CH_CCB_POLLED, 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; 440 441 unit = CHUNIT(dev); 442 periph = cam_extend_get(chperiphs, unit); 443 if (periph == NULL) 444 return(ENXIO); 445 446 softc = (struct ch_softc *)periph->softc; 447 448 cam_periph_lock(periph); 449 450 softc->flags &= ~CH_FLAG_OPEN; 451 452 cam_periph_unlock(periph); 453 cam_periph_release(periph); 454 455 return(0); 456 } 457 458 static void 459 chstart(struct cam_periph *periph, union ccb *start_ccb) 460 { 461 struct ch_softc *softc; 462 463 softc = (struct ch_softc *)periph->softc; 464 465 switch (softc->state) { 466 case CH_STATE_NORMAL: 467 { 468 if (periph->immediate_priority <= periph->pinfo.priority){ 469 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 470 471 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 472 periph_links.sle); 473 periph->immediate_priority = CAM_PRIORITY_NONE; 474 wakeup(&periph->ccb_list); 475 } 476 break; 477 } 478 case CH_STATE_PROBE: 479 { 480 int mode_buffer_len; 481 void *mode_buffer; 482 483 /* 484 * Include the block descriptor when calculating the mode 485 * buffer length, 486 */ 487 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 488 sizeof(struct scsi_mode_blk_desc) + 489 sizeof(struct page_element_address_assignment); 490 491 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO); 492 /* 493 * Get the element address assignment page. 494 */ 495 scsi_mode_sense(&start_ccb->csio, 496 /* retries */ 1, 497 /* cbfcnp */ chdone, 498 /* tag_action */ MSG_SIMPLE_Q_TAG, 499 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 500 FALSE : TRUE, 501 /* page_code */ SMS_PAGE_CTRL_CURRENT, 502 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 503 /* param_buf */ (u_int8_t *)mode_buffer, 504 /* param_len */ mode_buffer_len, 505 /* sense_len */ SSD_FULL_SIZE, 506 /* timeout */ CH_TIMEOUT_MODE_SENSE); 507 508 start_ccb->ccb_h.ccb_bio = NULL; 509 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 510 xpt_action(start_ccb); 511 break; 512 } 513 } 514 } 515 516 static void 517 chdone(struct cam_periph *periph, union ccb *done_ccb) 518 { 519 struct ch_softc *softc; 520 struct ccb_scsiio *csio; 521 522 softc = (struct ch_softc *)periph->softc; 523 csio = &done_ccb->csio; 524 525 switch(done_ccb->ccb_h.ccb_state) { 526 case CH_CCB_POLLED: 527 /* Caller releases ccb */ 528 wakeup(&done_ccb->ccb_h.cbfcnp); 529 return; 530 case CH_CCB_PROBE: 531 { 532 struct scsi_mode_header_6 *mode_header; 533 struct page_element_address_assignment *ea; 534 char announce_buf[80]; 535 536 537 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 538 539 ea = (struct page_element_address_assignment *) 540 find_mode_page_6(mode_header); 541 542 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 543 544 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 545 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 546 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 547 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 548 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 549 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 550 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 551 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 552 softc->sc_picker = softc->sc_firsts[CHET_MT]; 553 554 #define PLURAL(c) (c) == 1 ? "" : "s" 555 ksnprintf(announce_buf, sizeof(announce_buf), 556 "%d slot%s, %d drive%s, " 557 "%d picker%s, %d portal%s", 558 softc->sc_counts[CHET_ST], 559 PLURAL(softc->sc_counts[CHET_ST]), 560 softc->sc_counts[CHET_DT], 561 PLURAL(softc->sc_counts[CHET_DT]), 562 softc->sc_counts[CHET_MT], 563 PLURAL(softc->sc_counts[CHET_MT]), 564 softc->sc_counts[CHET_IE], 565 PLURAL(softc->sc_counts[CHET_IE])); 566 #undef PLURAL 567 } else { 568 int error; 569 570 error = cherror(done_ccb, CAM_RETRY_SELTO, 571 SF_RETRY_UA | SF_NO_PRINT); 572 /* 573 * Retry any UNIT ATTENTION type errors. They 574 * are expected at boot. 575 */ 576 if (error == ERESTART) { 577 /* 578 * A retry was scheuled, so 579 * just return. 580 */ 581 return; 582 } else if (error != 0) { 583 int retry_scheduled; 584 struct scsi_mode_sense_6 *sms; 585 586 sms = (struct scsi_mode_sense_6 *) 587 done_ccb->csio.cdb_io.cdb_bytes; 588 589 /* 590 * Check to see if block descriptors were 591 * disabled. Some devices don't like that. 592 * We're taking advantage of the fact that 593 * the first few bytes of the 6 and 10 byte 594 * mode sense commands are the same. If 595 * block descriptors were disabled, enable 596 * them and re-send the command. 597 */ 598 if (sms->byte2 & SMS_DBD) { 599 sms->byte2 &= ~SMS_DBD; 600 xpt_action(done_ccb); 601 softc->quirks |= CH_Q_NO_DBD; 602 retry_scheduled = 1; 603 } else 604 retry_scheduled = 0; 605 606 /* Don't wedge this device's queue */ 607 cam_release_devq(done_ccb->ccb_h.path, 608 /*relsim_flags*/0, 609 /*reduction*/0, 610 /*timeout*/0, 611 /*getcount_only*/0); 612 613 if (retry_scheduled) 614 return; 615 616 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 617 == CAM_SCSI_STATUS_ERROR) 618 scsi_sense_print(&done_ccb->csio); 619 else { 620 xpt_print(periph->path, 621 "got CAM status %#x\n", 622 done_ccb->ccb_h.status); 623 } 624 xpt_print(periph->path, "fatal error, failed " 625 "to attach to device\n"); 626 627 cam_periph_invalidate(periph); 628 629 announce_buf[0] = '\0'; 630 } 631 } 632 if (announce_buf[0] != '\0') 633 xpt_announce_periph(periph, announce_buf); 634 softc->state = CH_STATE_NORMAL; 635 kfree(mode_header, M_SCSICH); 636 /* 637 * Since our peripheral may be invalidated by an error 638 * above or an external event, we must release our CCB 639 * before releasing the probe lock on the peripheral. 640 * The peripheral will only go away once the last lock 641 * is removed, and we need it around for the CCB release 642 * operation. 643 */ 644 xpt_release_ccb(done_ccb); 645 cam_periph_unhold(periph, 0); 646 return; 647 } 648 case CH_CCB_WAITING: 649 { 650 /* Caller will release the CCB */ 651 wakeup(&done_ccb->ccb_h.cbfcnp); 652 return; 653 } 654 default: 655 break; 656 } 657 xpt_release_ccb(done_ccb); 658 } 659 660 static int 661 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 662 { 663 struct ch_softc *softc; 664 struct cam_periph *periph; 665 666 periph = xpt_path_periph(ccb->ccb_h.path); 667 softc = (struct ch_softc *)periph->softc; 668 669 return (cam_periph_error(ccb, cam_flags, sense_flags, 670 &softc->saved_ccb)); 671 } 672 673 static int 674 chioctl(struct dev_ioctl_args *ap) 675 { 676 cdev_t dev = ap->a_head.a_dev; 677 caddr_t addr = ap->a_data; 678 int flag = ap->a_fflag; 679 struct cam_periph *periph; 680 struct ch_softc *softc; 681 u_int8_t unit; 682 int error; 683 684 unit = CHUNIT(dev); 685 686 periph = cam_extend_get(chperiphs, unit); 687 if (periph == NULL) 688 return(ENXIO); 689 690 cam_periph_lock(periph); 691 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 692 693 softc = (struct ch_softc *)periph->softc; 694 695 error = 0; 696 697 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 698 ("trying to do ioctl %#lx\n", ap->a_cmd)); 699 700 /* 701 * If this command can change the device's state, we must 702 * have the device open for writing. 703 */ 704 switch (ap->a_cmd) { 705 case CHIOGPICKER: 706 case CHIOGPARAMS: 707 case CHIOGSTATUS: 708 break; 709 710 default: 711 if ((flag & FWRITE) == 0) { 712 cam_periph_unlock(periph); 713 return (EBADF); 714 } 715 } 716 717 switch (ap->a_cmd) { 718 case CHIOMOVE: 719 error = chmove(periph, (struct changer_move *)addr); 720 break; 721 722 case CHIOEXCHANGE: 723 error = chexchange(periph, (struct changer_exchange *)addr); 724 break; 725 726 case CHIOPOSITION: 727 error = chposition(periph, (struct changer_position *)addr); 728 break; 729 730 case CHIOGPICKER: 731 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 732 break; 733 734 case CHIOSPICKER: 735 { 736 int new_picker = *(int *)addr; 737 738 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) { 739 error = EINVAL; 740 break; 741 } 742 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 743 break; 744 } 745 case CHIOGPARAMS: 746 { 747 struct changer_params *cp = (struct changer_params *)addr; 748 749 cp->cp_npickers = softc->sc_counts[CHET_MT]; 750 cp->cp_nslots = softc->sc_counts[CHET_ST]; 751 cp->cp_nportals = softc->sc_counts[CHET_IE]; 752 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 753 break; 754 } 755 case CHIOIELEM: 756 error = chielem(periph, *(unsigned int *)addr); 757 break; 758 759 case CHIOGSTATUS: 760 { 761 error = chgetelemstatus(periph, 762 (struct changer_element_status_request *) addr); 763 break; 764 } 765 766 case CHIOSETVOLTAG: 767 { 768 error = chsetvoltag(periph, 769 (struct changer_set_voltag_request *) addr); 770 break; 771 } 772 773 /* Implement prevent/allow? */ 774 775 default: 776 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror); 777 break; 778 } 779 780 cam_periph_unlock(periph); 781 return (error); 782 } 783 784 static int 785 chmove(struct cam_periph *periph, struct changer_move *cm) 786 { 787 struct ch_softc *softc; 788 u_int16_t fromelem, toelem; 789 union ccb *ccb; 790 int error; 791 792 error = 0; 793 softc = (struct ch_softc *)periph->softc; 794 795 /* 796 * Check arguments. 797 */ 798 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 799 return (EINVAL); 800 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 801 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 802 return (ENODEV); 803 804 /* 805 * Check the request against the changer's capabilities. 806 */ 807 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 808 return (ENODEV); 809 810 /* 811 * Calculate the source and destination elements. 812 */ 813 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 814 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 815 816 ccb = cam_periph_getccb(periph, /*priority*/ 1); 817 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 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 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 878 879 scsi_exchange_medium(&ccb->csio, 880 /* retries */ 1, 881 /* cbfcnp */ chdone, 882 /* tag_action */ MSG_SIMPLE_Q_TAG, 883 /* tea */ softc->sc_picker, 884 /* src */ src, 885 /* dst1 */ dst1, 886 /* dst2 */ dst2, 887 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 888 TRUE : FALSE, 889 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 890 TRUE : FALSE, 891 /* sense_len */ SSD_FULL_SIZE, 892 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 893 894 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 895 /*sense_flags*/ SF_RETRY_UA, 896 &softc->device_stats); 897 898 xpt_release_ccb(ccb); 899 900 return(error); 901 } 902 903 static int 904 chposition(struct cam_periph *periph, struct changer_position *cp) 905 { 906 struct ch_softc *softc; 907 u_int16_t dst; 908 union ccb *ccb; 909 int error; 910 911 error = 0; 912 softc = (struct ch_softc *)periph->softc; 913 914 /* 915 * Check arguments. 916 */ 917 if (cp->cp_type > CHET_DT) 918 return (EINVAL); 919 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 920 return (ENODEV); 921 922 /* 923 * Calculate the destination element. 924 */ 925 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 926 927 ccb = cam_periph_getccb(periph, /*priority*/ 1); 928 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 929 930 scsi_position_to_element(&ccb->csio, 931 /* retries */ 1, 932 /* cbfcnp */ chdone, 933 /* tag_action */ MSG_SIMPLE_Q_TAG, 934 /* tea */ softc->sc_picker, 935 /* dst */ dst, 936 /* invert */ (cp->cp_flags & CP_INVERT) ? 937 TRUE : FALSE, 938 /* sense_len */ SSD_FULL_SIZE, 939 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 940 941 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 942 /*sense_flags*/ SF_RETRY_UA, 943 &softc->device_stats); 944 945 xpt_release_ccb(ccb); 946 947 return(error); 948 } 949 950 /* 951 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 952 * to host native byte order in the volume serial number. The volume 953 * label as returned by the changer is transferred to user mode as 954 * nul-terminated string. Volume labels are truncated at the first 955 * space, as suggested by SCSI-2. 956 */ 957 static void 958 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 959 { 960 int i; 961 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 962 char c = voltag->vif[i]; 963 if (c && c != ' ') 964 uvoltag->cv_volid[i] = c; 965 else 966 break; 967 } 968 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 969 } 970 971 /* 972 * Copy an an element status descriptor to a user-mode 973 * changer_element_status structure. 974 */ 975 976 static void 977 copy_element_status(struct ch_softc *softc, 978 u_int16_t flags, 979 struct read_element_status_descriptor *desc, 980 struct changer_element_status *ces) 981 { 982 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 983 u_int16_t et; 984 985 ces->ces_int_addr = eaddr; 986 /* set up logical address in element status */ 987 for (et = CHET_MT; et <= CHET_DT; et++) { 988 if ((softc->sc_firsts[et] <= eaddr) 989 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 990 > eaddr)) { 991 ces->ces_addr = eaddr - softc->sc_firsts[et]; 992 ces->ces_type = et; 993 break; 994 } 995 } 996 997 ces->ces_flags = desc->flags1; 998 999 ces->ces_sensecode = desc->sense_code; 1000 ces->ces_sensequal = desc->sense_qual; 1001 1002 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1003 ces->ces_flags |= CES_INVERT; 1004 1005 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1006 1007 eaddr = scsi_2btoul(desc->ssea); 1008 1009 /* convert source address to logical format */ 1010 for (et = CHET_MT; et <= CHET_DT; et++) { 1011 if ((softc->sc_firsts[et] <= eaddr) 1012 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1013 > eaddr)) { 1014 ces->ces_source_addr = 1015 eaddr - softc->sc_firsts[et]; 1016 ces->ces_source_type = et; 1017 ces->ces_flags |= CES_SOURCE_VALID; 1018 break; 1019 } 1020 } 1021 1022 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1023 kprintf("ch: warning: could not map element source " 1024 "address %ud to a valid element type\n", 1025 eaddr); 1026 } 1027 1028 1029 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1030 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1031 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1032 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1033 1034 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1035 ces->ces_flags |= CES_SCSIID_VALID; 1036 ces->ces_scsi_id = desc->dt_scsi_addr; 1037 } 1038 1039 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1040 ces->ces_flags |= CES_LUN_VALID; 1041 ces->ces_scsi_lun = 1042 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1043 } 1044 } 1045 1046 static int 1047 chgetelemstatus(struct cam_periph *periph, 1048 struct changer_element_status_request *cesr) 1049 { 1050 struct read_element_status_header *st_hdr; 1051 struct read_element_status_page_header *pg_hdr; 1052 struct read_element_status_descriptor *desc; 1053 caddr_t data = NULL; 1054 size_t size, desclen; 1055 int avail, i, error = 0; 1056 struct changer_element_status *user_data = NULL; 1057 struct ch_softc *softc; 1058 union ccb *ccb; 1059 int chet = cesr->cesr_element_type; 1060 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1061 1062 softc = (struct ch_softc *)periph->softc; 1063 1064 /* perform argument checking */ 1065 1066 /* 1067 * Perform a range check on the cesr_element_{base,count} 1068 * request argument fields. 1069 */ 1070 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1071 || (cesr->cesr_element_base + cesr->cesr_element_count) 1072 > softc->sc_counts[chet]) 1073 return (EINVAL); 1074 1075 /* 1076 * Request one descriptor for the given element type. This 1077 * is used to determine the size of the descriptor so that 1078 * we can allocate enough storage for all of them. We assume 1079 * that the first one can fit into 1k. 1080 */ 1081 cam_periph_unlock(periph); 1082 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT); 1083 1084 cam_periph_lock(periph); 1085 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1086 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 1087 1088 scsi_read_element_status(&ccb->csio, 1089 /* retries */ 1, 1090 /* cbfcnp */ chdone, 1091 /* tag_action */ MSG_SIMPLE_Q_TAG, 1092 /* voltag */ want_voltags, 1093 /* sea */ softc->sc_firsts[chet], 1094 /* count */ 1, 1095 /* data_ptr */ data, 1096 /* dxfer_len */ 1024, 1097 /* sense_len */ SSD_FULL_SIZE, 1098 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1099 1100 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1101 /*sense_flags*/ SF_RETRY_UA, 1102 &softc->device_stats); 1103 1104 if (error) 1105 goto done; 1106 cam_periph_unlock(periph); 1107 1108 st_hdr = (struct read_element_status_header *)data; 1109 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1110 sizeof(struct read_element_status_header)); 1111 desclen = scsi_2btoul(pg_hdr->edl); 1112 1113 size = sizeof(struct read_element_status_header) + 1114 sizeof(struct read_element_status_page_header) + 1115 (desclen * cesr->cesr_element_count); 1116 1117 /* 1118 * Reallocate storage for descriptors and get them from the 1119 * device. 1120 */ 1121 kfree(data, M_DEVBUF); 1122 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT); 1123 1124 cam_periph_lock(periph); 1125 scsi_read_element_status(&ccb->csio, 1126 /* retries */ 1, 1127 /* cbfcnp */ chdone, 1128 /* tag_action */ MSG_SIMPLE_Q_TAG, 1129 /* voltag */ want_voltags, 1130 /* sea */ softc->sc_firsts[chet] 1131 + cesr->cesr_element_base, 1132 /* count */ cesr->cesr_element_count, 1133 /* data_ptr */ data, 1134 /* dxfer_len */ size, 1135 /* sense_len */ SSD_FULL_SIZE, 1136 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1137 1138 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1139 /*sense_flags*/ SF_RETRY_UA, 1140 &softc->device_stats); 1141 1142 if (error) 1143 goto done; 1144 cam_periph_unlock(periph); 1145 1146 /* 1147 * Fill in the user status array. 1148 */ 1149 st_hdr = (struct read_element_status_header *)data; 1150 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1151 sizeof(struct read_element_status_header)); 1152 avail = scsi_2btoul(st_hdr->count); 1153 1154 if (avail != cesr->cesr_element_count) { 1155 xpt_print(periph->path, 1156 "warning, READ ELEMENT STATUS avail != count\n"); 1157 } 1158 1159 user_data = (struct changer_element_status *) 1160 kmalloc(avail * sizeof(struct changer_element_status), 1161 M_DEVBUF, M_INTWAIT | M_ZERO); 1162 1163 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1164 sizeof(struct read_element_status_header) + 1165 sizeof(struct read_element_status_page_header)); 1166 /* 1167 * Set up the individual element status structures 1168 */ 1169 for (i = 0; i < avail; ++i) { 1170 struct changer_element_status *ces = &(user_data[i]); 1171 1172 copy_element_status(softc, pg_hdr->flags, desc, ces); 1173 1174 desc = (struct read_element_status_descriptor *) 1175 ((uintptr_t)desc + desclen); 1176 } 1177 1178 /* Copy element status structures out to userspace. */ 1179 error = copyout(user_data, 1180 cesr->cesr_element_status, 1181 avail * sizeof(struct changer_element_status)); 1182 cam_periph_lock(periph); 1183 1184 done: 1185 xpt_release_ccb(ccb); 1186 1187 if (data != NULL) 1188 kfree(data, M_DEVBUF); 1189 if (user_data != NULL) 1190 kfree(user_data, M_DEVBUF); 1191 1192 return (error); 1193 } 1194 1195 static int 1196 chielem(struct cam_periph *periph, 1197 unsigned int timeout) 1198 { 1199 union ccb *ccb; 1200 struct ch_softc *softc; 1201 int error; 1202 1203 if (!timeout) { 1204 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1205 } else { 1206 timeout *= 1000; 1207 } 1208 1209 error = 0; 1210 softc = (struct ch_softc *)periph->softc; 1211 1212 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1213 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 1214 1215 scsi_initialize_element_status(&ccb->csio, 1216 /* retries */ 1, 1217 /* cbfcnp */ chdone, 1218 /* tag_action */ MSG_SIMPLE_Q_TAG, 1219 /* sense_len */ SSD_FULL_SIZE, 1220 /* timeout */ timeout); 1221 1222 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1223 /*sense_flags*/ SF_RETRY_UA, 1224 &softc->device_stats); 1225 1226 xpt_release_ccb(ccb); 1227 1228 return(error); 1229 } 1230 1231 static int 1232 chsetvoltag(struct cam_periph *periph, 1233 struct changer_set_voltag_request *csvr) 1234 { 1235 union ccb *ccb; 1236 struct ch_softc *softc; 1237 u_int16_t ea; 1238 u_int8_t sac; 1239 struct scsi_send_volume_tag_parameters ssvtp; 1240 int error; 1241 int i; 1242 1243 error = 0; 1244 softc = (struct ch_softc *)periph->softc; 1245 1246 bzero(&ssvtp, sizeof(ssvtp)); 1247 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1248 ssvtp.vitf[i] = ' '; 1249 } 1250 1251 /* 1252 * Check arguments. 1253 */ 1254 if (csvr->csvr_type > CHET_DT) 1255 return EINVAL; 1256 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1257 return ENODEV; 1258 1259 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1260 1261 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1262 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1263 case CSVR_MODE_SET: 1264 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1265 break; 1266 case CSVR_MODE_REPLACE: 1267 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1268 break; 1269 case CSVR_MODE_CLEAR: 1270 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1271 break; 1272 default: 1273 error = EINVAL; 1274 goto out; 1275 } 1276 } else { 1277 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1278 case CSVR_MODE_SET: 1279 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1280 break; 1281 case CSVR_MODE_REPLACE: 1282 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1283 break; 1284 case CSVR_MODE_CLEAR: 1285 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1286 break; 1287 default: 1288 error = EINVAL; 1289 goto out; 1290 } 1291 } 1292 1293 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1294 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1295 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1296 1297 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1298 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 1299 1300 scsi_send_volume_tag(&ccb->csio, 1301 /* retries */ 1, 1302 /* cbfcnp */ chdone, 1303 /* tag_action */ MSG_SIMPLE_Q_TAG, 1304 /* element_address */ ea, 1305 /* send_action_code */ sac, 1306 /* parameters */ &ssvtp, 1307 /* sense_len */ SSD_FULL_SIZE, 1308 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1309 1310 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1311 /*sense_flags*/ SF_RETRY_UA, 1312 &softc->device_stats); 1313 1314 xpt_release_ccb(ccb); 1315 1316 out: 1317 return error; 1318 } 1319 1320 static int 1321 chgetparams(struct cam_periph *periph) 1322 { 1323 union ccb *ccb; 1324 struct ch_softc *softc; 1325 void *mode_buffer; 1326 int mode_buffer_len; 1327 struct page_element_address_assignment *ea; 1328 struct page_device_capabilities *cap; 1329 int error, from, dbd; 1330 u_int8_t *moves, *exchanges; 1331 1332 error = 0; 1333 1334 softc = (struct ch_softc *)periph->softc; 1335 1336 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1337 ccb->ccb_h.ccb_state = CH_CCB_POLLED; 1338 1339 /* 1340 * The scsi_mode_sense_data structure is just a convenience 1341 * structure that allows us to easily calculate the worst-case 1342 * storage size of the mode sense buffer. 1343 */ 1344 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1345 1346 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO); 1347 1348 if (softc->quirks & CH_Q_NO_DBD) 1349 dbd = FALSE; 1350 else 1351 dbd = TRUE; 1352 1353 /* 1354 * Get the element address assignment page. 1355 */ 1356 scsi_mode_sense(&ccb->csio, 1357 /* retries */ 1, 1358 /* cbfcnp */ chdone, 1359 /* tag_action */ MSG_SIMPLE_Q_TAG, 1360 /* dbd */ dbd, 1361 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1362 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1363 /* param_buf */ (u_int8_t *)mode_buffer, 1364 /* param_len */ mode_buffer_len, 1365 /* sense_len */ SSD_FULL_SIZE, 1366 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1367 1368 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1369 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1370 &softc->device_stats); 1371 1372 if (error) { 1373 if (dbd) { 1374 struct scsi_mode_sense_6 *sms; 1375 1376 sms = (struct scsi_mode_sense_6 *) 1377 ccb->csio.cdb_io.cdb_bytes; 1378 1379 sms->byte2 &= ~SMS_DBD; 1380 error = cam_periph_runccb(ccb, cherror, 1381 /*cam_flags*/ CAM_RETRY_SELTO, 1382 /*sense_flags*/ SF_RETRY_UA, 1383 &softc->device_stats); 1384 } else { 1385 /* 1386 * Since we disabled sense printing above, print 1387 * out the sense here since we got an error. 1388 */ 1389 scsi_sense_print(&ccb->csio); 1390 } 1391 1392 if (error) { 1393 xpt_print(periph->path, 1394 "chgetparams: error getting element " 1395 "address page\n"); 1396 xpt_release_ccb(ccb); 1397 kfree(mode_buffer, M_SCSICH); 1398 return(error); 1399 } 1400 } 1401 1402 ea = (struct page_element_address_assignment *) 1403 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1404 1405 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1406 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1407 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1408 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1409 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1410 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1411 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1412 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1413 1414 bzero(mode_buffer, mode_buffer_len); 1415 1416 /* 1417 * Now get the device capabilities page. 1418 */ 1419 scsi_mode_sense(&ccb->csio, 1420 /* retries */ 1, 1421 /* cbfcnp */ chdone, 1422 /* tag_action */ MSG_SIMPLE_Q_TAG, 1423 /* dbd */ dbd, 1424 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1425 /* page */ CH_DEVICE_CAP_PAGE, 1426 /* param_buf */ (u_int8_t *)mode_buffer, 1427 /* param_len */ mode_buffer_len, 1428 /* sense_len */ SSD_FULL_SIZE, 1429 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1430 1431 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1432 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1433 &softc->device_stats); 1434 1435 if (error) { 1436 if (dbd) { 1437 struct scsi_mode_sense_6 *sms; 1438 1439 sms = (struct scsi_mode_sense_6 *) 1440 ccb->csio.cdb_io.cdb_bytes; 1441 1442 sms->byte2 &= ~SMS_DBD; 1443 error = cam_periph_runccb(ccb, cherror, 1444 /*cam_flags*/ CAM_RETRY_SELTO, 1445 /*sense_flags*/ SF_RETRY_UA, 1446 &softc->device_stats); 1447 } else { 1448 /* 1449 * Since we disabled sense printing above, print 1450 * out the sense here since we got an error. 1451 */ 1452 scsi_sense_print(&ccb->csio); 1453 } 1454 1455 if (error) { 1456 xpt_print(periph->path, 1457 "chgetparams: error getting device " 1458 "capabilities page\n"); 1459 xpt_release_ccb(ccb); 1460 kfree(mode_buffer, M_SCSICH); 1461 return(error); 1462 } 1463 } 1464 1465 xpt_release_ccb(ccb); 1466 1467 cap = (struct page_device_capabilities *) 1468 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1469 1470 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1471 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1472 moves = cap->move_from; 1473 exchanges = cap->exchange_with; 1474 for (from = CHET_MT; from <= CHET_MAX; ++from) { 1475 softc->sc_movemask[from] = moves[from]; 1476 softc->sc_exchangemask[from] = exchanges[from]; 1477 } 1478 1479 kfree(mode_buffer, M_SCSICH); 1480 1481 return(error); 1482 } 1483 1484 void 1485 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1486 void (*cbfcnp)(struct cam_periph *, union ccb *), 1487 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1488 u_int32_t dst, int invert, u_int8_t sense_len, 1489 u_int32_t timeout) 1490 { 1491 struct scsi_move_medium *scsi_cmd; 1492 1493 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1494 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1495 1496 scsi_cmd->opcode = MOVE_MEDIUM; 1497 1498 scsi_ulto2b(tea, scsi_cmd->tea); 1499 scsi_ulto2b(src, scsi_cmd->src); 1500 scsi_ulto2b(dst, scsi_cmd->dst); 1501 1502 if (invert) 1503 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1504 1505 cam_fill_csio(csio, 1506 retries, 1507 cbfcnp, 1508 /*flags*/ CAM_DIR_NONE, 1509 tag_action, 1510 /*data_ptr*/ NULL, 1511 /*dxfer_len*/ 0, 1512 sense_len, 1513 sizeof(*scsi_cmd), 1514 timeout); 1515 } 1516 1517 void 1518 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1519 void (*cbfcnp)(struct cam_periph *, union ccb *), 1520 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1521 u_int32_t dst1, u_int32_t dst2, int invert1, 1522 int invert2, u_int8_t sense_len, u_int32_t timeout) 1523 { 1524 struct scsi_exchange_medium *scsi_cmd; 1525 1526 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1527 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1528 1529 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1530 1531 scsi_ulto2b(tea, scsi_cmd->tea); 1532 scsi_ulto2b(src, scsi_cmd->src); 1533 scsi_ulto2b(dst1, scsi_cmd->fdst); 1534 scsi_ulto2b(dst2, scsi_cmd->sdst); 1535 1536 if (invert1) 1537 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1538 1539 if (invert2) 1540 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1541 1542 cam_fill_csio(csio, 1543 retries, 1544 cbfcnp, 1545 /*flags*/ CAM_DIR_NONE, 1546 tag_action, 1547 /*data_ptr*/ NULL, 1548 /*dxfer_len*/ 0, 1549 sense_len, 1550 sizeof(*scsi_cmd), 1551 timeout); 1552 } 1553 1554 void 1555 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1556 void (*cbfcnp)(struct cam_periph *, union ccb *), 1557 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1558 int invert, u_int8_t sense_len, u_int32_t timeout) 1559 { 1560 struct scsi_position_to_element *scsi_cmd; 1561 1562 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1563 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1564 1565 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1566 1567 scsi_ulto2b(tea, scsi_cmd->tea); 1568 scsi_ulto2b(dst, scsi_cmd->dst); 1569 1570 if (invert) 1571 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1572 1573 cam_fill_csio(csio, 1574 retries, 1575 cbfcnp, 1576 /*flags*/ CAM_DIR_NONE, 1577 tag_action, 1578 /*data_ptr*/ NULL, 1579 /*dxfer_len*/ 0, 1580 sense_len, 1581 sizeof(*scsi_cmd), 1582 timeout); 1583 } 1584 1585 void 1586 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1587 void (*cbfcnp)(struct cam_periph *, union ccb *), 1588 u_int8_t tag_action, int voltag, u_int32_t sea, 1589 u_int32_t count, u_int8_t *data_ptr, 1590 u_int32_t dxfer_len, u_int8_t sense_len, 1591 u_int32_t timeout) 1592 { 1593 struct scsi_read_element_status *scsi_cmd; 1594 1595 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1596 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1597 1598 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1599 1600 scsi_ulto2b(sea, scsi_cmd->sea); 1601 scsi_ulto2b(count, scsi_cmd->count); 1602 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1603 1604 if (voltag) 1605 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1606 1607 cam_fill_csio(csio, 1608 retries, 1609 cbfcnp, 1610 /*flags*/ CAM_DIR_IN, 1611 tag_action, 1612 data_ptr, 1613 dxfer_len, 1614 sense_len, 1615 sizeof(*scsi_cmd), 1616 timeout); 1617 } 1618 1619 void 1620 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1621 void (*cbfcnp)(struct cam_periph *, union ccb *), 1622 u_int8_t tag_action, u_int8_t sense_len, 1623 u_int32_t timeout) 1624 { 1625 struct scsi_initialize_element_status *scsi_cmd; 1626 1627 scsi_cmd = (struct scsi_initialize_element_status *) 1628 &csio->cdb_io.cdb_bytes; 1629 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1630 1631 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1632 1633 cam_fill_csio(csio, 1634 retries, 1635 cbfcnp, 1636 /*flags*/ CAM_DIR_NONE, 1637 tag_action, 1638 /* data_ptr */ NULL, 1639 /* dxfer_len */ 0, 1640 sense_len, 1641 sizeof(*scsi_cmd), 1642 timeout); 1643 } 1644 1645 void 1646 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1647 void (*cbfcnp)(struct cam_periph *, union ccb *), 1648 u_int8_t tag_action, 1649 u_int16_t element_address, 1650 u_int8_t send_action_code, 1651 struct scsi_send_volume_tag_parameters *parameters, 1652 u_int8_t sense_len, u_int32_t timeout) 1653 { 1654 struct scsi_send_volume_tag *scsi_cmd; 1655 1656 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1657 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1658 1659 scsi_cmd->opcode = SEND_VOLUME_TAG; 1660 scsi_ulto2b(element_address, scsi_cmd->ea); 1661 scsi_cmd->sac = send_action_code; 1662 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1663 1664 cam_fill_csio(csio, 1665 retries, 1666 cbfcnp, 1667 /*flags*/ CAM_DIR_OUT, 1668 tag_action, 1669 /* data_ptr */ (u_int8_t *) parameters, 1670 sizeof(*parameters), 1671 sense_len, 1672 sizeof(*scsi_cmd), 1673 timeout); 1674 } 1675