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