wd.c revision 1.343.4.2
1 /* $NetBSD: wd.c,v 1.343.4.2 2007/10/16 13:04:59 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. 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 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Charles M. Hannum and by Onno van der Linden. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the NetBSD 50 * Foundation, Inc. and its contributors. 51 * 4. Neither the name of The NetBSD Foundation nor the names of its 52 * contributors may be used to endorse or promote products derived 53 * from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 56 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 65 * POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.343.4.2 2007/10/16 13:04:59 joerg Exp $"); 70 71 #include "opt_ata.h" 72 73 #include "rnd.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/conf.h> 79 #include <sys/file.h> 80 #include <sys/stat.h> 81 #include <sys/ioctl.h> 82 #include <sys/buf.h> 83 #include <sys/bufq.h> 84 #include <sys/uio.h> 85 #include <sys/malloc.h> 86 #include <sys/device.h> 87 #include <sys/disklabel.h> 88 #include <sys/disk.h> 89 #include <sys/syslog.h> 90 #include <sys/proc.h> 91 #include <sys/vnode.h> 92 #if NRND > 0 93 #include <sys/rnd.h> 94 #endif 95 96 #include <machine/intr.h> 97 #include <machine/bus.h> 98 99 #include <dev/ata/atareg.h> 100 #include <dev/ata/atavar.h> 101 #include <dev/ata/wdvar.h> 102 #include <dev/ic/wdcreg.h> 103 #include <sys/ataio.h> 104 #include "locators.h" 105 106 #include <prop/proplib.h> 107 108 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 109 110 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 111 #define WDIORETRIES 5 /* number of retries before giving up */ 112 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 113 114 #define WDUNIT(dev) DISKUNIT(dev) 115 #define WDPART(dev) DISKPART(dev) 116 #define WDMINOR(unit, part) DISKMINOR(unit, part) 117 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 118 119 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 120 121 #define DEBUG_INTR 0x01 122 #define DEBUG_XFERS 0x02 123 #define DEBUG_STATUS 0x04 124 #define DEBUG_FUNCS 0x08 125 #define DEBUG_PROBE 0x10 126 #ifdef ATADEBUG 127 int wdcdebug_wd_mask = 0x0; 128 #define ATADEBUG_PRINT(args, level) \ 129 if (wdcdebug_wd_mask & (level)) \ 130 printf args 131 #else 132 #define ATADEBUG_PRINT(args, level) 133 #endif 134 135 int wdprobe(struct device *, struct cfdata *, void *); 136 void wdattach(struct device *, struct device *, void *); 137 int wddetach(struct device *, int); 138 int wdactivate(struct device *, enum devact); 139 int wdprint(void *, char *); 140 void wdperror(const struct wd_softc *); 141 142 static pnp_status_t wd_power(device_t, pnp_request_t, void *); 143 144 CFATTACH_DECL(wd, sizeof(struct wd_softc), 145 wdprobe, wdattach, wddetach, wdactivate); 146 147 extern struct cfdriver wd_cd; 148 149 dev_type_open(wdopen); 150 dev_type_close(wdclose); 151 dev_type_read(wdread); 152 dev_type_write(wdwrite); 153 dev_type_ioctl(wdioctl); 154 dev_type_strategy(wdstrategy); 155 dev_type_dump(wddump); 156 dev_type_size(wdsize); 157 158 const struct bdevsw wd_bdevsw = { 159 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 160 }; 161 162 const struct cdevsw wd_cdevsw = { 163 wdopen, wdclose, wdread, wdwrite, wdioctl, 164 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 165 }; 166 167 /* 168 * Glue necessary to hook WDCIOCCOMMAND into physio 169 */ 170 171 struct wd_ioctl { 172 LIST_ENTRY(wd_ioctl) wi_list; 173 struct buf wi_bp; 174 struct uio wi_uio; 175 struct iovec wi_iov; 176 atareq_t wi_atareq; 177 struct wd_softc *wi_softc; 178 }; 179 180 LIST_HEAD(, wd_ioctl) wi_head; 181 182 struct wd_ioctl *wi_find(struct buf *); 183 void wi_free(struct wd_ioctl *); 184 struct wd_ioctl *wi_get(void); 185 void wdioctlstrategy(struct buf *); 186 187 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 188 void wdgetdisklabel(struct wd_softc *); 189 void wdstart(void *); 190 void __wdstart(struct wd_softc*, struct buf *); 191 void wdrestart(void *); 192 void wddone(void *); 193 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 194 int wd_standby(struct wd_softc *, int); 195 int wd_flushcache(struct wd_softc *, int); 196 197 int wd_getcache(struct wd_softc *, int *); 198 int wd_setcache(struct wd_softc *, int); 199 200 struct dkdriver wddkdriver = { wdstrategy, minphys }; 201 202 #ifdef HAS_BAD144_HANDLING 203 static void bad144intern(struct wd_softc *); 204 #endif 205 206 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 207 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 208 209 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 210 211 /* 212 * Quirk table for IDE drives. Put more-specific matches first, since 213 * a simple globbing routine is used for matching. 214 */ 215 static const struct wd_quirk { 216 const char *wdq_match; /* inquiry pattern to match */ 217 int wdq_quirks; /* drive quirks */ 218 } wd_quirk_table[] = { 219 /* 220 * Some Seagate S-ATA drives have a PHY which can get confused 221 * with the way data is packetized by some S-ATA controllers. 222 * 223 * The work-around is to split in two any write transfer whose 224 * sector count % 15 == 1 (assuming 512 byte sectors). 225 * 226 * XXX This is an incomplete list. There are at least a couple 227 * XXX more model numbers. If you have trouble with such transfers 228 * XXX (8K is the most common) on Seagate S-ATA drives, please 229 * XXX notify thorpej (at) NetBSD.org. 230 */ 231 { "ST3120023AS", 232 WD_QUIRK_SPLIT_MOD15_WRITE }, 233 { "ST380023AS", 234 WD_QUIRK_SPLIT_MOD15_WRITE }, 235 236 /* 237 * These seagate drives seems to have issue addressing sector 0xfffffff 238 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 239 * LBA48 240 * Note that we can't just change the code to always use LBA48 for 241 * sector 0xfffffff, because this would break valid and working 242 * setups using LBA48 drives on non-LBA48-capable controllers 243 * (and it's hard to get a list of such controllers) 244 */ 245 { "ST3160021A*", 246 WD_QUIRK_FORCE_LBA48 }, 247 { "ST3160811A*", 248 WD_QUIRK_FORCE_LBA48 }, 249 { "ST3160812A*", 250 WD_QUIRK_FORCE_LBA48 }, 251 { "ST3160023A*", 252 WD_QUIRK_FORCE_LBA48 }, 253 { "ST3160827A*", 254 WD_QUIRK_FORCE_LBA48 }, 255 /* Attempt to catch all seagate drives larger than 200GB */ 256 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 257 WD_QUIRK_FORCE_LBA48 }, 258 { NULL, 259 0 } 260 }; 261 262 static const struct wd_quirk * 263 wd_lookup_quirks(const char *name) 264 { 265 const struct wd_quirk *wdq; 266 const char *estr; 267 268 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 269 /* 270 * We only want exact matches (which include matches 271 * against globbing characters). 272 */ 273 if (pmatch(name, wdq->wdq_match, &estr) == 2) 274 return (wdq); 275 } 276 return (NULL); 277 } 278 279 int 280 wdprobe(struct device *parent, struct cfdata *match, void *aux) 281 { 282 struct ata_device *adev = aux; 283 284 if (adev == NULL) 285 return 0; 286 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 287 return 0; 288 289 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 290 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 291 return 0; 292 return 1; 293 } 294 295 void 296 wdattach(struct device *parent, struct device *self, void *aux) 297 { 298 struct wd_softc *wd = (void *)self; 299 struct ata_device *adev= aux; 300 int i, blank; 301 char tbuf[41], pbuf[9], c, *p, *q; 302 const struct wd_quirk *wdq; 303 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 304 305 callout_init(&wd->sc_restart_ch, 0); 306 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 307 #ifdef WD_SOFTBADSECT 308 SLIST_INIT(&wd->sc_bslist); 309 #endif 310 wd->atabus = adev->adev_bustype; 311 wd->openings = adev->adev_openings; 312 wd->drvp = adev->adev_drv_data; 313 314 wd->drvp->drv_done = wddone; 315 wd->drvp->drv_softc = &wd->sc_dev; 316 317 aprint_naive("\n"); 318 319 /* read our drive info */ 320 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 321 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 322 return; 323 } 324 325 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 326 i < sizeof(wd->sc_params.atap_model); i++) { 327 c = *p++; 328 if (c == '\0') 329 break; 330 if (c != ' ') { 331 if (blank) { 332 *q++ = ' '; 333 blank = 0; 334 } 335 *q++ = c; 336 } else 337 blank = 1; 338 } 339 *q++ = '\0'; 340 341 aprint_normal(": <%s>\n", tbuf); 342 343 wdq = wd_lookup_quirks(tbuf); 344 if (wdq != NULL) 345 wd->sc_quirks = wdq->wdq_quirks; 346 347 if (wd->sc_quirks != 0) { 348 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 349 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 350 sbuf, sizeof(sbuf)); 351 aprint_normal("%s: quirks %s\n", wd->sc_dev.dv_xname, sbuf); 352 } 353 354 if ((wd->sc_params.atap_multi & 0xff) > 1) { 355 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 356 } else { 357 wd->sc_multi = 1; 358 } 359 360 aprint_verbose("%s: drive supports %d-sector PIO transfers,", 361 wd->sc_dev.dv_xname, wd->sc_multi); 362 363 /* 48-bit LBA addressing */ 364 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 365 wd->sc_flags |= WDF_LBA48; 366 367 /* Prior to ATA-4, LBA was optional. */ 368 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 369 wd->sc_flags |= WDF_LBA; 370 #if 0 371 /* ATA-4 requires LBA. */ 372 if (wd->sc_params.atap_ataversion != 0xffff && 373 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 374 wd->sc_flags |= WDF_LBA; 375 #endif 376 377 if ((wd->sc_flags & WDF_LBA48) != 0) { 378 aprint_verbose(" LBA48 addressing\n"); 379 wd->sc_capacity = 380 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 381 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 382 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 383 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 384 } else if ((wd->sc_flags & WDF_LBA) != 0) { 385 aprint_verbose(" LBA addressing\n"); 386 wd->sc_capacity = 387 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 388 wd->sc_params.atap_capacity[0]; 389 } else { 390 aprint_verbose(" chs addressing\n"); 391 wd->sc_capacity = 392 wd->sc_params.atap_cylinders * 393 wd->sc_params.atap_heads * 394 wd->sc_params.atap_sectors; 395 } 396 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 397 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 398 "%d bytes/sect x %llu sectors\n", 399 self->dv_xname, pbuf, 400 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 401 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 402 wd->sc_params.atap_cylinders, 403 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 404 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 405 406 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 407 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 408 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 409 /* 410 * Initialize and attach the disk structure. 411 */ 412 wd->sc_dk.dk_driver = &wddkdriver; 413 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 414 /* we fill in dk_info later */ 415 disk_attach(&wd->sc_dk); 416 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 417 #if NRND > 0 418 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 419 RND_TYPE_DISK, 0); 420 #endif 421 422 /* Discover wedges on this disk. */ 423 dkwedge_discover(&wd->sc_dk); 424 425 wd->sc_device_down = false; 426 if (pnp_register(self, wd_power) != PNP_STATUS_SUCCESS) 427 aprint_error_dev(self, "couldn't establish power handler\n"); 428 } 429 430 static pnp_status_t 431 wd_power(device_t dv, pnp_request_t req, void *opaque) 432 { 433 struct wd_softc *sc = device_private(dv); 434 pnp_status_t status; 435 pnp_state_t *state; 436 pnp_capabilities_t *caps; 437 438 switch (req) { 439 case PNP_REQUEST_GET_CAPABILITIES: 440 caps = opaque; 441 caps->state = PNP_STATE_D0 | PNP_STATE_D3; 442 break; 443 444 case PNP_REQUEST_SET_STATE: 445 state = opaque; 446 switch (*state) { 447 case PNP_STATE_D0: 448 sc->sc_device_down = false; 449 break; 450 case PNP_STATE_D3: 451 sc->sc_device_down = true; 452 wd_flushcache(sc, AT_POLL); 453 break; 454 default: 455 return PNP_STATUS_UNSUPPORTED; 456 } 457 break; 458 459 case PNP_REQUEST_GET_STATE: 460 state = opaque; 461 if (sc->sc_device_down) 462 *state = PNP_STATE_D3; 463 else 464 *state = PNP_STATE_D0; 465 status = PNP_STATUS_SUCCESS; 466 break; 467 default: 468 return PNP_STATUS_UNSUPPORTED; 469 } 470 471 return PNP_STATUS_SUCCESS; 472 } 473 474 475 int 476 wdactivate(struct device *self, enum devact act) 477 { 478 int rv = 0; 479 480 switch (act) { 481 case DVACT_ACTIVATE: 482 rv = EOPNOTSUPP; 483 break; 484 485 case DVACT_DEACTIVATE: 486 /* 487 * Nothing to do; we key off the device's DVF_ACTIVATE. 488 */ 489 break; 490 } 491 return (rv); 492 } 493 494 int 495 wddetach(struct device *self, int flags) 496 { 497 struct wd_softc *sc = (struct wd_softc *)self; 498 int s, bmaj, cmaj, i, mn; 499 500 /* locate the major number */ 501 bmaj = bdevsw_lookup_major(&wd_bdevsw); 502 cmaj = cdevsw_lookup_major(&wd_cdevsw); 503 504 /* Nuke the vnodes for any open instances. */ 505 for (i = 0; i < MAXPARTITIONS; i++) { 506 mn = WDMINOR(device_unit(self), i); 507 vdevgone(bmaj, mn, mn, VBLK); 508 vdevgone(cmaj, mn, mn, VCHR); 509 } 510 511 /* Delete all of our wedges. */ 512 dkwedge_delall(&sc->sc_dk); 513 514 s = splbio(); 515 516 /* Kill off any queued buffers. */ 517 bufq_drain(sc->sc_q); 518 519 bufq_free(sc->sc_q); 520 sc->atabus->ata_killpending(sc->drvp); 521 522 splx(s); 523 524 /* Detach disk. */ 525 disk_detach(&sc->sc_dk); 526 527 #ifdef WD_SOFTBADSECT 528 /* Clean out the bad sector list */ 529 while (!SLIST_EMPTY(&sc->sc_bslist)) { 530 void *head = SLIST_FIRST(&sc->sc_bslist); 531 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 532 free(head, M_TEMP); 533 } 534 sc->sc_bscount = 0; 535 #endif 536 537 pnp_deregister(self); 538 539 #if NRND > 0 540 /* Unhook the entropy source. */ 541 rnd_detach_source(&sc->rnd_source); 542 #endif 543 544 sc->drvp->drive_flags = 0; /* no drive any more here */ 545 546 return (0); 547 } 548 549 /* 550 * Read/write routine for a buffer. Validates the arguments and schedules the 551 * transfer. Does not wait for the transfer to complete. 552 */ 553 void 554 wdstrategy(struct buf *bp) 555 { 556 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 557 struct disklabel *lp = wd->sc_dk.dk_label; 558 daddr_t blkno; 559 int s; 560 561 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 562 DEBUG_XFERS); 563 564 /* Valid request? */ 565 if (bp->b_blkno < 0 || 566 (bp->b_bcount % lp->d_secsize) != 0 || 567 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 568 bp->b_error = EINVAL; 569 goto done; 570 } 571 572 /* If device invalidated (e.g. media change, door open), error. */ 573 if ((wd->sc_flags & WDF_LOADED) == 0) { 574 bp->b_error = EIO; 575 goto done; 576 } 577 578 /* If it's a null transfer, return immediately. */ 579 if (bp->b_bcount == 0) 580 goto done; 581 582 /* 583 * Do bounds checking, adjust transfer. if error, process. 584 * If end of partition, just return. 585 */ 586 if (WDPART(bp->b_dev) == RAW_PART) { 587 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 588 wd->sc_capacity) <= 0) 589 goto done; 590 } else { 591 if (bounds_check_with_label(&wd->sc_dk, bp, 592 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 593 goto done; 594 } 595 596 /* 597 * Now convert the block number to absolute and put it in 598 * terms of the device's logical block size. 599 */ 600 if (lp->d_secsize >= DEV_BSIZE) 601 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 602 else 603 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 604 605 if (WDPART(bp->b_dev) != RAW_PART) 606 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 607 608 bp->b_rawblkno = blkno; 609 610 #ifdef WD_SOFTBADSECT 611 /* 612 * If the transfer about to be attempted contains only a block that 613 * is known to be bad then return an error for the transfer without 614 * even attempting to start a transfer up under the premis that we 615 * will just end up doing more retries for a transfer that will end 616 * up failing again. 617 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 618 */ 619 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 620 struct disk_badsectors *dbs; 621 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 622 623 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 624 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 625 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 626 bp->b_error = EIO; 627 goto done; 628 } 629 } 630 #endif 631 632 /* Queue transfer on drive, activate drive and controller if idle. */ 633 s = splbio(); 634 BUFQ_PUT(wd->sc_q, bp); 635 wdstart(wd); 636 splx(s); 637 return; 638 done: 639 /* Toss transfer; we're done early. */ 640 bp->b_resid = bp->b_bcount; 641 biodone(bp); 642 } 643 644 /* 645 * Queue a drive for I/O. 646 */ 647 void 648 wdstart(void *arg) 649 { 650 struct wd_softc *wd = arg; 651 struct buf *bp = NULL; 652 653 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 654 DEBUG_XFERS); 655 while (wd->openings > 0) { 656 657 /* Is there a buf for us ? */ 658 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 659 return; 660 661 /* 662 * Make the command. First lock the device 663 */ 664 wd->openings--; 665 666 wd->retries = 0; 667 __wdstart(wd, bp); 668 } 669 } 670 671 static void 672 wd_split_mod15_write(struct buf *bp) 673 { 674 struct buf *obp = bp->b_private; 675 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 676 677 if (__predict_false(bp->b_error != 0)) { 678 /* 679 * Propagate the error. If this was the first half of 680 * the original transfer, make sure to account for that 681 * in the residual. 682 */ 683 if (bp->b_data == obp->b_data) 684 bp->b_resid += bp->b_bcount; 685 goto done; 686 } 687 688 /* 689 * If this was the second half of the transfer, we're all done! 690 */ 691 if (bp->b_data != obp->b_data) 692 goto done; 693 694 /* 695 * Advance the pointer to the second half and issue that command 696 * using the same opening. 697 */ 698 bp->b_flags = obp->b_flags | B_CALL; 699 bp->b_data = (char *)bp->b_data + bp->b_bcount; 700 bp->b_blkno += (bp->b_bcount / 512); 701 bp->b_rawblkno += (bp->b_bcount / 512); 702 __wdstart(sc, bp); 703 return; 704 705 done: 706 obp->b_error = bp->b_error; 707 obp->b_resid = bp->b_resid; 708 putiobuf(bp); 709 biodone(obp); 710 sc->openings++; 711 /* wddone() will call wdstart() */ 712 } 713 714 void 715 __wdstart(struct wd_softc *wd, struct buf *bp) 716 { 717 718 /* 719 * Deal with the "split mod15 write" quirk. We just divide the 720 * transfer in two, doing the first half and then then second half 721 * with the same command opening. 722 * 723 * Note we MUST do this here, because we can't let insertion 724 * into the bufq cause the transfers to be re-merged. 725 */ 726 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 727 (bp->b_flags & B_READ) == 0 && 728 bp->b_bcount > 512 && 729 ((bp->b_bcount / 512) % 15) == 1)) { 730 struct buf *nbp; 731 732 /* already at splbio */ 733 nbp = getiobuf_nowait(); 734 if (__predict_false(nbp == NULL)) { 735 /* No memory -- fail the iop. */ 736 bp->b_error = ENOMEM; 737 bp->b_resid = bp->b_bcount; 738 biodone(bp); 739 wd->openings++; 740 return; 741 } 742 743 nbp->b_error = 0; 744 nbp->b_proc = bp->b_proc; 745 nbp->b_vp = NULLVP; 746 nbp->b_dev = bp->b_dev; 747 748 nbp->b_bcount = bp->b_bcount / 2; 749 nbp->b_bufsize = bp->b_bcount / 2; 750 nbp->b_data = bp->b_data; 751 752 nbp->b_blkno = bp->b_blkno; 753 nbp->b_rawblkno = bp->b_rawblkno; 754 755 nbp->b_flags = bp->b_flags | B_CALL; 756 nbp->b_iodone = wd_split_mod15_write; 757 758 /* Put ptr to orig buf in b_private and use new buf */ 759 nbp->b_private = bp; 760 761 BIO_COPYPRIO(nbp, bp); 762 763 bp = nbp; 764 } 765 766 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 767 wd->sc_wdc_bio.blkdone =0; 768 wd->sc_bp = bp; 769 /* 770 * If we're retrying, retry in single-sector mode. This will give us 771 * the sector number of the problem, and will eventually allow the 772 * transfer to succeed. 773 */ 774 if (wd->retries >= WDIORETRIES_SINGLE) 775 wd->sc_wdc_bio.flags = ATA_SINGLE; 776 else 777 wd->sc_wdc_bio.flags = 0; 778 if (wd->sc_flags & WDF_LBA48 && 779 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 780 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 781 wd->sc_wdc_bio.flags |= ATA_LBA48; 782 if (wd->sc_flags & WDF_LBA) 783 wd->sc_wdc_bio.flags |= ATA_LBA; 784 if (bp->b_flags & B_READ) 785 wd->sc_wdc_bio.flags |= ATA_READ; 786 wd->sc_wdc_bio.bcount = bp->b_bcount; 787 wd->sc_wdc_bio.databuf = bp->b_data; 788 /* Instrumentation. */ 789 disk_busy(&wd->sc_dk); 790 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 791 case ATACMD_TRY_AGAIN: 792 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 793 break; 794 case ATACMD_QUEUED: 795 case ATACMD_COMPLETE: 796 break; 797 default: 798 panic("__wdstart: bad return code from ata_bio()"); 799 } 800 } 801 802 void 803 wddone(void *v) 804 { 805 struct wd_softc *wd = v; 806 struct buf *bp = wd->sc_bp; 807 const char *errmsg; 808 int do_perror = 0; 809 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 810 DEBUG_XFERS); 811 int nblks; 812 813 if (bp == NULL) 814 return; 815 bp->b_resid = wd->sc_wdc_bio.bcount; 816 switch (wd->sc_wdc_bio.error) { 817 case ERR_DMA: 818 errmsg = "DMA error"; 819 goto retry; 820 case ERR_DF: 821 errmsg = "device fault"; 822 goto retry; 823 case TIMEOUT: 824 errmsg = "device timeout"; 825 goto retry; 826 case ERR_RESET: 827 errmsg = "channel reset"; 828 goto retry2; 829 case ERROR: 830 /* Don't care about media change bits */ 831 if (wd->sc_wdc_bio.r_error != 0 && 832 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 833 goto noerror; 834 errmsg = "error"; 835 do_perror = 1; 836 if (wd->sc_wdc_bio.r_error & WDCE_IDNF && 837 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 838 nblks = wd->sc_wdc_bio.bcount / 839 wd->sc_dk.dk_label->d_secsize; 840 /* 841 * If we get a "id not found" when crossing the 842 * LBA48_THRESHOLD, and the drive is larger than 843 * 128GB, then we can assume the drive has the 844 * LBA48 bug and we switch to LBA48. 845 */ 846 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 847 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 848 wd->sc_capacity > LBA48_THRESHOLD + 1) { 849 errmsg = "LBA48 bug"; 850 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 851 do_perror = 0; 852 goto retry2; 853 } 854 } 855 retry: /* Just reset and retry. Can we do more ? */ 856 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 857 retry2: 858 diskerr(bp, "wd", errmsg, LOG_PRINTF, 859 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 860 if (wd->retries < WDIORETRIES) 861 printf(", retrying"); 862 printf("\n"); 863 if (do_perror) 864 wdperror(wd); 865 if (wd->retries < WDIORETRIES) { 866 wd->retries++; 867 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 868 wdrestart, wd); 869 return; 870 } 871 872 #ifdef WD_SOFTBADSECT 873 /* 874 * Not all errors indicate a failed block but those that do, 875 * put the block on the bad-block list for the device. Only 876 * do this for reads because the drive should do it for writes, 877 * itself, according to Manuel. 878 */ 879 if ((bp->b_flags & B_READ) && 880 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 881 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 882 struct disk_badsectors *dbs; 883 884 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 885 dbs->dbs_min = bp->b_rawblkno; 886 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 887 microtime(&dbs->dbs_failedat); 888 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 889 wd->sc_bscount++; 890 } 891 #endif 892 bp->b_error = EIO; 893 break; 894 case NOERROR: 895 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 896 printf("%s: soft error (corrected)\n", 897 wd->sc_dev.dv_xname); 898 break; 899 case ERR_NODEV: 900 bp->b_error = EIO; 901 break; 902 } 903 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 904 (bp->b_flags & B_READ)); 905 #if NRND > 0 906 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 907 #endif 908 /* XXX Yuck, but we don't want to increment openings in this case */ 909 if (__predict_false((bp->b_flags & B_CALL) != 0 && 910 bp->b_iodone == wd_split_mod15_write)) 911 biodone(bp); 912 else { 913 biodone(bp); 914 wd->openings++; 915 } 916 wdstart(wd); 917 } 918 919 void 920 wdrestart(void *v) 921 { 922 struct wd_softc *wd = v; 923 struct buf *bp = wd->sc_bp; 924 int s; 925 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 926 DEBUG_XFERS); 927 928 s = splbio(); 929 __wdstart(v, bp); 930 splx(s); 931 } 932 933 int 934 wdread(dev_t dev, struct uio *uio, int flags) 935 { 936 937 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 938 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 939 } 940 941 int 942 wdwrite(dev_t dev, struct uio *uio, int flags) 943 { 944 945 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 946 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 947 } 948 949 int 950 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 951 { 952 struct wd_softc *wd; 953 int part, error; 954 955 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 956 wd = device_lookup(&wd_cd, WDUNIT(dev)); 957 if (wd == NULL) 958 return (ENXIO); 959 960 if (! device_is_active(&wd->sc_dev)) 961 return (ENODEV); 962 963 part = WDPART(dev); 964 965 mutex_enter(&wd->sc_dk.dk_openlock); 966 967 /* 968 * If there are wedges, and this is not RAW_PART, then we 969 * need to fail. 970 */ 971 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 972 error = EBUSY; 973 goto bad1; 974 } 975 976 /* 977 * If this is the first open of this device, add a reference 978 * to the adapter. 979 */ 980 if (wd->sc_dk.dk_openmask == 0 && 981 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 982 goto bad1; 983 984 if (wd->sc_dk.dk_openmask != 0) { 985 /* 986 * If any partition is open, but the disk has been invalidated, 987 * disallow further opens. 988 */ 989 if ((wd->sc_flags & WDF_LOADED) == 0) { 990 error = EIO; 991 goto bad2; 992 } 993 } else { 994 if ((wd->sc_flags & WDF_LOADED) == 0) { 995 wd->sc_flags |= WDF_LOADED; 996 997 /* Load the physical device parameters. */ 998 wd_get_params(wd, AT_WAIT, &wd->sc_params); 999 1000 /* Load the partition info if not already loaded. */ 1001 wdgetdisklabel(wd); 1002 } 1003 } 1004 1005 /* Check that the partition exists. */ 1006 if (part != RAW_PART && 1007 (part >= wd->sc_dk.dk_label->d_npartitions || 1008 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 1009 error = ENXIO; 1010 goto bad2; 1011 } 1012 1013 /* Insure only one open at a time. */ 1014 switch (fmt) { 1015 case S_IFCHR: 1016 wd->sc_dk.dk_copenmask |= (1 << part); 1017 break; 1018 case S_IFBLK: 1019 wd->sc_dk.dk_bopenmask |= (1 << part); 1020 break; 1021 } 1022 wd->sc_dk.dk_openmask = 1023 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1024 1025 mutex_exit(&wd->sc_dk.dk_openlock); 1026 return 0; 1027 1028 bad2: 1029 if (wd->sc_dk.dk_openmask == 0) 1030 wd->atabus->ata_delref(wd->drvp); 1031 bad1: 1032 mutex_exit(&wd->sc_dk.dk_openlock); 1033 return error; 1034 } 1035 1036 int 1037 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1038 { 1039 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1040 int part = WDPART(dev); 1041 1042 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1043 1044 mutex_enter(&wd->sc_dk.dk_openlock); 1045 1046 switch (fmt) { 1047 case S_IFCHR: 1048 wd->sc_dk.dk_copenmask &= ~(1 << part); 1049 break; 1050 case S_IFBLK: 1051 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1052 break; 1053 } 1054 wd->sc_dk.dk_openmask = 1055 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1056 1057 if (wd->sc_dk.dk_openmask == 0) { 1058 wd_flushcache(wd, AT_WAIT); 1059 1060 if (! (wd->sc_flags & WDF_KLABEL)) 1061 wd->sc_flags &= ~WDF_LOADED; 1062 1063 wd->atabus->ata_delref(wd->drvp); 1064 } 1065 1066 mutex_exit(&wd->sc_dk.dk_openlock); 1067 return 0; 1068 } 1069 1070 void 1071 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1072 { 1073 1074 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1075 memset(lp, 0, sizeof(struct disklabel)); 1076 1077 lp->d_secsize = DEV_BSIZE; 1078 lp->d_ntracks = wd->sc_params.atap_heads; 1079 lp->d_nsectors = wd->sc_params.atap_sectors; 1080 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1081 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1082 wd->sc_params.atap_cylinders; 1083 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1084 1085 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1086 lp->d_type = DTYPE_ST506; 1087 else 1088 lp->d_type = DTYPE_ESDI; 1089 1090 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1091 strncpy(lp->d_packname, "fictitious", 16); 1092 if (wd->sc_capacity > UINT32_MAX) 1093 lp->d_secperunit = UINT32_MAX; 1094 else 1095 lp->d_secperunit = wd->sc_capacity; 1096 lp->d_rpm = 3600; 1097 lp->d_interleave = 1; 1098 lp->d_flags = 0; 1099 1100 lp->d_partitions[RAW_PART].p_offset = 0; 1101 lp->d_partitions[RAW_PART].p_size = 1102 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1103 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1104 lp->d_npartitions = RAW_PART + 1; 1105 1106 lp->d_magic = DISKMAGIC; 1107 lp->d_magic2 = DISKMAGIC; 1108 lp->d_checksum = dkcksum(lp); 1109 } 1110 1111 /* 1112 * Fabricate a default disk label, and try to read the correct one. 1113 */ 1114 void 1115 wdgetdisklabel(struct wd_softc *wd) 1116 { 1117 struct disklabel *lp = wd->sc_dk.dk_label; 1118 const char *errstring; 1119 int s; 1120 1121 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1122 1123 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1124 1125 wdgetdefaultlabel(wd, lp); 1126 1127 wd->sc_badsect[0] = -1; 1128 1129 if (wd->drvp->state > RESET) { 1130 s = splbio(); 1131 wd->drvp->drive_flags |= DRIVE_RESET; 1132 splx(s); 1133 } 1134 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1135 RAW_PART), wdstrategy, lp, 1136 wd->sc_dk.dk_cpulabel); 1137 if (errstring) { 1138 /* 1139 * This probably happened because the drive's default 1140 * geometry doesn't match the DOS geometry. We 1141 * assume the DOS geometry is now in the label and try 1142 * again. XXX This is a kluge. 1143 */ 1144 if (wd->drvp->state > RESET) { 1145 s = splbio(); 1146 wd->drvp->drive_flags |= DRIVE_RESET; 1147 splx(s); 1148 } 1149 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1150 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1151 } 1152 if (errstring) { 1153 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1154 return; 1155 } 1156 1157 if (wd->drvp->state > RESET) { 1158 s = splbio(); 1159 wd->drvp->drive_flags |= DRIVE_RESET; 1160 splx(s); 1161 } 1162 #ifdef HAS_BAD144_HANDLING 1163 if ((lp->d_flags & D_BADSECT) != 0) 1164 bad144intern(wd); 1165 #endif 1166 } 1167 1168 void 1169 wdperror(const struct wd_softc *wd) 1170 { 1171 static const char *const errstr0_3[] = {"address mark not found", 1172 "track 0 not found", "aborted command", "media change requested", 1173 "id not found", "media changed", "uncorrectable data error", 1174 "bad block detected"}; 1175 static const char *const errstr4_5[] = { 1176 "obsolete (address mark not found)", 1177 "no media/write protected", "aborted command", 1178 "media change requested", "id not found", "media changed", 1179 "uncorrectable data error", "interface CRC error"}; 1180 const char *const *errstr; 1181 int i; 1182 const char *sep = ""; 1183 1184 const char *devname = wd->sc_dev.dv_xname; 1185 struct ata_drive_datas *drvp = wd->drvp; 1186 int errno = wd->sc_wdc_bio.r_error; 1187 1188 if (drvp->ata_vers >= 4) 1189 errstr = errstr4_5; 1190 else 1191 errstr = errstr0_3; 1192 1193 printf("%s: (", devname); 1194 1195 if (errno == 0) 1196 printf("error not notified"); 1197 1198 for (i = 0; i < 8; i++) { 1199 if (errno & (1 << i)) { 1200 printf("%s%s", sep, errstr[i]); 1201 sep = ", "; 1202 } 1203 } 1204 printf(")\n"); 1205 } 1206 1207 int 1208 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1209 { 1210 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1211 int error = 0, s; 1212 #ifdef __HAVE_OLD_DISKLABEL 1213 struct disklabel *newlabel = NULL; 1214 #endif 1215 1216 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1217 1218 if ((wd->sc_flags & WDF_LOADED) == 0) 1219 return EIO; 1220 1221 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1222 if (error != EPASSTHROUGH) 1223 return (error); 1224 1225 switch (xfer) { 1226 #ifdef HAS_BAD144_HANDLING 1227 case DIOCSBAD: 1228 if ((flag & FWRITE) == 0) 1229 return EBADF; 1230 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1231 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1232 bad144intern(wd); 1233 return 0; 1234 #endif 1235 #ifdef WD_SOFTBADSECT 1236 case DIOCBSLIST : 1237 { 1238 u_int32_t count, missing, skip; 1239 struct disk_badsecinfo dbsi; 1240 struct disk_badsectors *dbs; 1241 size_t available; 1242 uint8_t *laddr; 1243 1244 dbsi = *(struct disk_badsecinfo *)addr; 1245 missing = wd->sc_bscount; 1246 count = 0; 1247 available = dbsi.dbsi_bufsize; 1248 skip = dbsi.dbsi_skip; 1249 laddr = (uint8_t *)dbsi.dbsi_buffer; 1250 1251 /* 1252 * We start this loop with the expectation that all of the 1253 * entries will be missed and decrement this counter each 1254 * time we either skip over one (already copied out) or 1255 * we actually copy it back to user space. The structs 1256 * holding the bad sector information are copied directly 1257 * back to user space whilst the summary is returned via 1258 * the struct passed in via the ioctl. 1259 */ 1260 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1261 if (skip > 0) { 1262 missing--; 1263 skip--; 1264 continue; 1265 } 1266 if (available < sizeof(*dbs)) 1267 break; 1268 available -= sizeof(*dbs); 1269 copyout(dbs, laddr, sizeof(*dbs)); 1270 laddr += sizeof(*dbs); 1271 missing--; 1272 count++; 1273 } 1274 dbsi.dbsi_left = missing; 1275 dbsi.dbsi_copied = count; 1276 *(struct disk_badsecinfo *)addr = dbsi; 1277 return 0; 1278 } 1279 1280 case DIOCBSFLUSH : 1281 /* Clean out the bad sector list */ 1282 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1283 void *head = SLIST_FIRST(&wd->sc_bslist); 1284 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1285 free(head, M_TEMP); 1286 } 1287 wd->sc_bscount = 0; 1288 return 0; 1289 #endif 1290 case DIOCGDINFO: 1291 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1292 return 0; 1293 #ifdef __HAVE_OLD_DISKLABEL 1294 case ODIOCGDINFO: 1295 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1296 if (newlabel == NULL) 1297 return EIO; 1298 *newlabel = *(wd->sc_dk.dk_label); 1299 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1300 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1301 else 1302 error = ENOTTY; 1303 free(newlabel, M_TEMP); 1304 return error; 1305 #endif 1306 1307 case DIOCGPART: 1308 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1309 ((struct partinfo *)addr)->part = 1310 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1311 return 0; 1312 1313 case DIOCWDINFO: 1314 case DIOCSDINFO: 1315 #ifdef __HAVE_OLD_DISKLABEL 1316 case ODIOCWDINFO: 1317 case ODIOCSDINFO: 1318 #endif 1319 { 1320 struct disklabel *lp; 1321 1322 if ((flag & FWRITE) == 0) 1323 return EBADF; 1324 1325 #ifdef __HAVE_OLD_DISKLABEL 1326 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1327 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1328 if (newlabel == NULL) 1329 return EIO; 1330 memset(newlabel, 0, sizeof newlabel); 1331 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1332 lp = newlabel; 1333 } else 1334 #endif 1335 lp = (struct disklabel *)addr; 1336 1337 mutex_enter(&wd->sc_dk.dk_openlock); 1338 wd->sc_flags |= WDF_LABELLING; 1339 1340 error = setdisklabel(wd->sc_dk.dk_label, 1341 lp, /*wd->sc_dk.dk_openmask : */0, 1342 wd->sc_dk.dk_cpulabel); 1343 if (error == 0) { 1344 if (wd->drvp->state > RESET) { 1345 s = splbio(); 1346 wd->drvp->drive_flags |= DRIVE_RESET; 1347 splx(s); 1348 } 1349 if (xfer == DIOCWDINFO 1350 #ifdef __HAVE_OLD_DISKLABEL 1351 || xfer == ODIOCWDINFO 1352 #endif 1353 ) 1354 error = writedisklabel(WDLABELDEV(dev), 1355 wdstrategy, wd->sc_dk.dk_label, 1356 wd->sc_dk.dk_cpulabel); 1357 } 1358 1359 wd->sc_flags &= ~WDF_LABELLING; 1360 mutex_exit(&wd->sc_dk.dk_openlock); 1361 #ifdef __HAVE_OLD_DISKLABEL 1362 if (newlabel != NULL) 1363 free(newlabel, M_TEMP); 1364 #endif 1365 return error; 1366 } 1367 1368 case DIOCKLABEL: 1369 if (*(int *)addr) 1370 wd->sc_flags |= WDF_KLABEL; 1371 else 1372 wd->sc_flags &= ~WDF_KLABEL; 1373 return 0; 1374 1375 case DIOCWLABEL: 1376 if ((flag & FWRITE) == 0) 1377 return EBADF; 1378 if (*(int *)addr) 1379 wd->sc_flags |= WDF_WLABEL; 1380 else 1381 wd->sc_flags &= ~WDF_WLABEL; 1382 return 0; 1383 1384 case DIOCGDEFLABEL: 1385 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1386 return 0; 1387 #ifdef __HAVE_OLD_DISKLABEL 1388 case ODIOCGDEFLABEL: 1389 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1390 if (newlabel == NULL) 1391 return EIO; 1392 wdgetdefaultlabel(wd, newlabel); 1393 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1394 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1395 else 1396 error = ENOTTY; 1397 free(newlabel, M_TEMP); 1398 return error; 1399 #endif 1400 1401 #ifdef notyet 1402 case DIOCWFORMAT: 1403 if ((flag & FWRITE) == 0) 1404 return EBADF; 1405 { 1406 register struct format_op *fop; 1407 struct iovec aiov; 1408 struct uio auio; 1409 1410 fop = (struct format_op *)addr; 1411 aiov.iov_base = fop->df_buf; 1412 aiov.iov_len = fop->df_count; 1413 auio.uio_iov = &aiov; 1414 auio.uio_iovcnt = 1; 1415 auio.uio_resid = fop->df_count; 1416 auio.uio_offset = 1417 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1418 auio.uio_vmspace = l->l_proc->p_vmspace; 1419 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1420 &auio); 1421 fop->df_count -= auio.uio_resid; 1422 fop->df_reg[0] = wdc->sc_status; 1423 fop->df_reg[1] = wdc->sc_error; 1424 return error; 1425 } 1426 #endif 1427 case DIOCGCACHE: 1428 return wd_getcache(wd, (int *)addr); 1429 1430 case DIOCSCACHE: 1431 return wd_setcache(wd, *(int *)addr); 1432 1433 case DIOCCACHESYNC: 1434 return wd_flushcache(wd, AT_WAIT); 1435 1436 case ATAIOCCOMMAND: 1437 /* 1438 * Make sure this command is (relatively) safe first 1439 */ 1440 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1441 (flag & FWRITE) == 0) 1442 return (EBADF); 1443 { 1444 struct wd_ioctl *wi; 1445 atareq_t *atareq = (atareq_t *) addr; 1446 int error1; 1447 1448 wi = wi_get(); 1449 wi->wi_softc = wd; 1450 wi->wi_atareq = *atareq; 1451 1452 if (atareq->datalen && atareq->flags & 1453 (ATACMD_READ | ATACMD_WRITE)) { 1454 void *tbuf; 1455 if (atareq->datalen < DEV_BSIZE 1456 && atareq->command == WDCC_IDENTIFY) { 1457 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1458 wi->wi_iov.iov_base = tbuf; 1459 wi->wi_iov.iov_len = DEV_BSIZE; 1460 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1461 } else { 1462 tbuf = NULL; 1463 wi->wi_iov.iov_base = atareq->databuf; 1464 wi->wi_iov.iov_len = atareq->datalen; 1465 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1466 } 1467 wi->wi_uio.uio_iov = &wi->wi_iov; 1468 wi->wi_uio.uio_iovcnt = 1; 1469 wi->wi_uio.uio_resid = atareq->datalen; 1470 wi->wi_uio.uio_offset = 0; 1471 wi->wi_uio.uio_rw = 1472 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1473 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1474 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1475 minphys, &wi->wi_uio); 1476 if (tbuf != NULL && error1 == 0) { 1477 error1 = copyout(tbuf, atareq->databuf, 1478 atareq->datalen); 1479 free(tbuf, M_TEMP); 1480 } 1481 } else { 1482 /* No need to call physio if we don't have any 1483 user data */ 1484 wi->wi_bp.b_flags = 0; 1485 wi->wi_bp.b_data = 0; 1486 wi->wi_bp.b_bcount = 0; 1487 wi->wi_bp.b_dev = 0; 1488 wi->wi_bp.b_proc = l->l_proc; 1489 wdioctlstrategy(&wi->wi_bp); 1490 error1 = wi->wi_bp.b_error; 1491 } 1492 *atareq = wi->wi_atareq; 1493 wi_free(wi); 1494 return(error1); 1495 } 1496 1497 case DIOCAWEDGE: 1498 { 1499 struct dkwedge_info *dkw = (void *) addr; 1500 1501 if ((flag & FWRITE) == 0) 1502 return (EBADF); 1503 1504 /* If the ioctl happens here, the parent is us. */ 1505 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1506 return (dkwedge_add(dkw)); 1507 } 1508 1509 case DIOCDWEDGE: 1510 { 1511 struct dkwedge_info *dkw = (void *) addr; 1512 1513 if ((flag & FWRITE) == 0) 1514 return (EBADF); 1515 1516 /* If the ioctl happens here, the parent is us. */ 1517 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1518 return (dkwedge_del(dkw)); 1519 } 1520 1521 case DIOCLWEDGES: 1522 { 1523 struct dkwedge_list *dkwl = (void *) addr; 1524 1525 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1526 } 1527 1528 case DIOCGSTRATEGY: 1529 { 1530 struct disk_strategy *dks = (void *)addr; 1531 1532 s = splbio(); 1533 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1534 sizeof(dks->dks_name)); 1535 splx(s); 1536 dks->dks_paramlen = 0; 1537 1538 return 0; 1539 } 1540 1541 case DIOCSSTRATEGY: 1542 { 1543 struct disk_strategy *dks = (void *)addr; 1544 struct bufq_state *new; 1545 struct bufq_state *old; 1546 1547 if ((flag & FWRITE) == 0) { 1548 return EBADF; 1549 } 1550 if (dks->dks_param != NULL) { 1551 return EINVAL; 1552 } 1553 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1554 error = bufq_alloc(&new, dks->dks_name, 1555 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1556 if (error) { 1557 return error; 1558 } 1559 s = splbio(); 1560 old = wd->sc_q; 1561 bufq_move(new, old); 1562 wd->sc_q = new; 1563 splx(s); 1564 bufq_free(old); 1565 1566 return 0; 1567 } 1568 1569 default: 1570 return ENOTTY; 1571 } 1572 1573 #ifdef DIAGNOSTIC 1574 panic("wdioctl: impossible"); 1575 #endif 1576 } 1577 1578 #ifdef B_FORMAT 1579 int 1580 wdformat(struct buf *bp) 1581 { 1582 1583 bp->b_flags |= B_FORMAT; 1584 return wdstrategy(bp); 1585 } 1586 #endif 1587 1588 int 1589 wdsize(dev_t dev) 1590 { 1591 struct wd_softc *wd; 1592 int part, omask; 1593 int size; 1594 1595 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1596 1597 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1598 if (wd == NULL) 1599 return (-1); 1600 1601 part = WDPART(dev); 1602 omask = wd->sc_dk.dk_openmask & (1 << part); 1603 1604 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1605 return (-1); 1606 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1607 size = -1; 1608 else 1609 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1610 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1611 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1612 return (-1); 1613 return (size); 1614 } 1615 1616 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1617 static int wddoingadump = 0; 1618 static int wddumprecalibrated = 0; 1619 1620 /* 1621 * Dump core after a system crash. 1622 */ 1623 int 1624 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1625 { 1626 struct wd_softc *wd; /* disk unit to do the I/O */ 1627 struct disklabel *lp; /* disk's disklabel */ 1628 int part, err; 1629 int nblks; /* total number of sectors left to write */ 1630 1631 /* Check if recursive dump; if so, punt. */ 1632 if (wddoingadump) 1633 return EFAULT; 1634 wddoingadump = 1; 1635 1636 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1637 if (wd == NULL) 1638 return (ENXIO); 1639 1640 part = WDPART(dev); 1641 1642 /* Convert to disk sectors. Request must be a multiple of size. */ 1643 lp = wd->sc_dk.dk_label; 1644 if ((size % lp->d_secsize) != 0) 1645 return EFAULT; 1646 nblks = size / lp->d_secsize; 1647 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1648 1649 /* Check transfer bounds against partition size. */ 1650 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1651 return EINVAL; 1652 1653 /* Offset block number to start of partition. */ 1654 blkno += lp->d_partitions[part].p_offset; 1655 1656 /* Recalibrate, if first dump transfer. */ 1657 if (wddumprecalibrated == 0) { 1658 wddumprecalibrated = 1; 1659 (*wd->atabus->ata_reset_drive)(wd->drvp, 1660 AT_POLL | AT_RST_EMERG); 1661 wd->drvp->state = RESET; 1662 } 1663 1664 wd->sc_bp = NULL; 1665 wd->sc_wdc_bio.blkno = blkno; 1666 wd->sc_wdc_bio.flags = ATA_POLL; 1667 if (wd->sc_flags & WDF_LBA48 && 1668 (blkno > LBA48_THRESHOLD || 1669 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1670 wd->sc_wdc_bio.flags |= ATA_LBA48; 1671 if (wd->sc_flags & WDF_LBA) 1672 wd->sc_wdc_bio.flags |= ATA_LBA; 1673 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1674 wd->sc_wdc_bio.databuf = va; 1675 #ifndef WD_DUMP_NOT_TRUSTED 1676 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1677 case ATACMD_TRY_AGAIN: 1678 panic("wddump: try again"); 1679 break; 1680 case ATACMD_QUEUED: 1681 panic("wddump: polled command has been queued"); 1682 break; 1683 case ATACMD_COMPLETE: 1684 break; 1685 } 1686 switch(wd->sc_wdc_bio.error) { 1687 case TIMEOUT: 1688 printf("wddump: device timed out"); 1689 err = EIO; 1690 break; 1691 case ERR_DF: 1692 printf("wddump: drive fault"); 1693 err = EIO; 1694 break; 1695 case ERR_DMA: 1696 printf("wddump: DMA error"); 1697 err = EIO; 1698 break; 1699 case ERROR: 1700 printf("wddump: "); 1701 wdperror(wd); 1702 err = EIO; 1703 break; 1704 case NOERROR: 1705 err = 0; 1706 break; 1707 default: 1708 panic("wddump: unknown error type"); 1709 } 1710 if (err != 0) { 1711 printf("\n"); 1712 return err; 1713 } 1714 #else /* WD_DUMP_NOT_TRUSTED */ 1715 /* Let's just talk about this first... */ 1716 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1717 unit, va, cylin, head, sector); 1718 delay(500 * 1000); /* half a second */ 1719 #endif 1720 1721 wddoingadump = 0; 1722 return 0; 1723 } 1724 1725 #ifdef HAS_BAD144_HANDLING 1726 /* 1727 * Internalize the bad sector table. 1728 */ 1729 void 1730 bad144intern(struct wd_softc *wd) 1731 { 1732 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1733 struct disklabel *lp = wd->sc_dk.dk_label; 1734 int i = 0; 1735 1736 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1737 1738 for (; i < NBT_BAD; i++) { 1739 if (bt->bt_bad[i].bt_cyl == 0xffff) 1740 break; 1741 wd->sc_badsect[i] = 1742 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1743 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1744 (bt->bt_bad[i].bt_trksec & 0xff); 1745 } 1746 for (; i < NBT_BAD+1; i++) 1747 wd->sc_badsect[i] = -1; 1748 } 1749 #endif 1750 1751 static void 1752 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1753 { 1754 prop_dictionary_t disk_info, odisk_info, geom; 1755 const char *cp; 1756 1757 disk_info = prop_dictionary_create(); 1758 1759 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1760 cp = "ST506"; 1761 else { 1762 /* XXX Should have a case for ATA here, too. */ 1763 cp = "ESDI"; 1764 } 1765 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1766 1767 geom = prop_dictionary_create(); 1768 1769 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1770 1771 prop_dictionary_set_uint32(geom, "sector-size", 1772 DEV_BSIZE /* XXX 512? */); 1773 1774 prop_dictionary_set_uint16(geom, "sectors-per-track", 1775 wd->sc_params.atap_sectors); 1776 1777 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1778 wd->sc_params.atap_heads); 1779 1780 if (wd->sc_flags & WDF_LBA) 1781 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1782 wd->sc_capacity / 1783 (wd->sc_params.atap_heads * 1784 wd->sc_params.atap_sectors)); 1785 else 1786 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1787 wd->sc_params.atap_cylinders); 1788 1789 prop_dictionary_set(disk_info, "geometry", geom); 1790 prop_object_release(geom); 1791 1792 prop_dictionary_set(device_properties(&wd->sc_dev), 1793 "disk-info", disk_info); 1794 1795 /* 1796 * Don't release disk_info here; we keep a reference to it. 1797 * disk_detach() will release it when we go away. 1798 */ 1799 1800 odisk_info = wd->sc_dk.dk_info; 1801 wd->sc_dk.dk_info = disk_info; 1802 if (odisk_info) 1803 prop_object_release(odisk_info); 1804 } 1805 1806 int 1807 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1808 { 1809 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1810 case CMD_AGAIN: 1811 return 1; 1812 case CMD_ERR: 1813 /* 1814 * We `know' there's a drive here; just assume it's old. 1815 * This geometry is only used to read the MBR and print a 1816 * (false) attach message. 1817 */ 1818 strncpy(params->atap_model, "ST506", 1819 sizeof params->atap_model); 1820 params->atap_config = ATA_CFG_FIXED; 1821 params->atap_cylinders = 1024; 1822 params->atap_heads = 8; 1823 params->atap_sectors = 17; 1824 params->atap_multi = 1; 1825 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1826 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1827 /* FALLTHROUGH */ 1828 case CMD_OK: 1829 wd_params_to_properties(wd, params); 1830 return 0; 1831 default: 1832 panic("wd_get_params: bad return code from ata_get_params"); 1833 /* NOTREACHED */ 1834 } 1835 } 1836 1837 int 1838 wd_getcache(struct wd_softc *wd, int *bitsp) 1839 { 1840 struct ataparams params; 1841 1842 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1843 return EIO; 1844 if (params.atap_cmd_set1 == 0x0000 || 1845 params.atap_cmd_set1 == 0xffff || 1846 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1847 *bitsp = 0; 1848 return 0; 1849 } 1850 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1851 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1852 *bitsp |= DKCACHE_WRITE; 1853 1854 return 0; 1855 } 1856 1857 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1858 1859 int 1860 wd_setcache(struct wd_softc *wd, int bits) 1861 { 1862 struct ataparams params; 1863 struct ata_command ata_c; 1864 1865 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1866 return EIO; 1867 1868 if (params.atap_cmd_set1 == 0x0000 || 1869 params.atap_cmd_set1 == 0xffff || 1870 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1871 return EOPNOTSUPP; 1872 1873 if ((bits & DKCACHE_READ) == 0 || 1874 (bits & DKCACHE_SAVE) != 0) 1875 return EOPNOTSUPP; 1876 1877 memset(&ata_c, 0, sizeof(struct ata_command)); 1878 ata_c.r_command = SET_FEATURES; 1879 ata_c.r_st_bmask = 0; 1880 ata_c.r_st_pmask = 0; 1881 ata_c.timeout = 30000; /* 30s timeout */ 1882 ata_c.flags = AT_WAIT; 1883 if (bits & DKCACHE_WRITE) 1884 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1885 else 1886 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1887 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1888 printf("%s: wd_setcache command not complete\n", 1889 wd->sc_dev.dv_xname); 1890 return EIO; 1891 } 1892 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1893 char sbuf[sizeof(at_errbits) + 64]; 1894 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1895 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1896 sbuf); 1897 return EIO; 1898 } 1899 return 0; 1900 } 1901 1902 int 1903 wd_standby(struct wd_softc *wd, int flags) 1904 { 1905 struct ata_command ata_c; 1906 1907 memset(&ata_c, 0, sizeof(struct ata_command)); 1908 ata_c.r_command = WDCC_STANDBY_IMMED; 1909 ata_c.r_st_bmask = WDCS_DRDY; 1910 ata_c.r_st_pmask = WDCS_DRDY; 1911 ata_c.flags = flags; 1912 ata_c.timeout = 30000; /* 30s timeout */ 1913 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1914 printf("%s: standby immediate command didn't complete\n", 1915 wd->sc_dev.dv_xname); 1916 return EIO; 1917 } 1918 if (ata_c.flags & AT_ERROR) { 1919 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1920 return ENODEV; 1921 } 1922 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1923 char sbuf[sizeof(at_errbits) + 64]; 1924 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1925 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1926 sbuf); 1927 return EIO; 1928 } 1929 return 0; 1930 } 1931 1932 int 1933 wd_flushcache(struct wd_softc *wd, int flags) 1934 { 1935 struct ata_command ata_c; 1936 1937 /* 1938 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1939 * only ATA-2 and still support it. 1940 */ 1941 if (wd->drvp->ata_vers < 4 && 1942 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1943 wd->sc_params.atap_cmd_set2 == 0xffff)) 1944 return ENODEV; 1945 memset(&ata_c, 0, sizeof(struct ata_command)); 1946 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1947 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1948 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1949 else 1950 ata_c.r_command = WDCC_FLUSHCACHE; 1951 ata_c.r_st_bmask = WDCS_DRDY; 1952 ata_c.r_st_pmask = WDCS_DRDY; 1953 ata_c.flags = flags; 1954 ata_c.timeout = 30000; /* 30s timeout */ 1955 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1956 printf("%s: flush cache command didn't complete\n", 1957 wd->sc_dev.dv_xname); 1958 return EIO; 1959 } 1960 if (ata_c.flags & AT_ERROR) { 1961 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1962 return ENODEV; 1963 } 1964 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1965 char sbuf[sizeof(at_errbits) + 64]; 1966 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1967 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1968 sbuf); 1969 return EIO; 1970 } 1971 return 0; 1972 } 1973 1974 /* 1975 * Allocate space for a ioctl queue structure. Mostly taken from 1976 * scsipi_ioctl.c 1977 */ 1978 struct wd_ioctl * 1979 wi_get(void) 1980 { 1981 struct wd_ioctl *wi; 1982 int s; 1983 1984 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1985 simple_lock_init(&wi->wi_bp.b_interlock); 1986 s = splbio(); 1987 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1988 splx(s); 1989 return (wi); 1990 } 1991 1992 /* 1993 * Free an ioctl structure and remove it from our list 1994 */ 1995 1996 void 1997 wi_free(struct wd_ioctl *wi) 1998 { 1999 int s; 2000 2001 s = splbio(); 2002 LIST_REMOVE(wi, wi_list); 2003 splx(s); 2004 free(wi, M_TEMP); 2005 } 2006 2007 /* 2008 * Find a wd_ioctl structure based on the struct buf. 2009 */ 2010 2011 struct wd_ioctl * 2012 wi_find(struct buf *bp) 2013 { 2014 struct wd_ioctl *wi; 2015 int s; 2016 2017 s = splbio(); 2018 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2019 if (bp == &wi->wi_bp) 2020 break; 2021 splx(s); 2022 return (wi); 2023 } 2024 2025 /* 2026 * Ioctl pseudo strategy routine 2027 * 2028 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2029 * happens here is: 2030 * 2031 * - wdioctl() queues a wd_ioctl structure. 2032 * 2033 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2034 * user space I/O is required. If physio() is called, physio() eventually 2035 * calls wdioctlstrategy(). 2036 * 2037 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2038 * to perform the actual command 2039 * 2040 * The reason for the use of the pseudo strategy routine is because 2041 * when doing I/O to/from user space, physio _really_ wants to be in 2042 * the loop. We could put the entire buffer into the ioctl request 2043 * structure, but that won't scale if we want to do things like download 2044 * microcode. 2045 */ 2046 2047 void 2048 wdioctlstrategy(struct buf *bp) 2049 { 2050 struct wd_ioctl *wi; 2051 struct ata_command ata_c; 2052 int error = 0; 2053 2054 wi = wi_find(bp); 2055 if (wi == NULL) { 2056 printf("wdioctlstrategy: " 2057 "No matching ioctl request found in queue\n"); 2058 error = EINVAL; 2059 goto done; 2060 } 2061 2062 memset(&ata_c, 0, sizeof(ata_c)); 2063 2064 /* 2065 * Abort if physio broke up the transfer 2066 */ 2067 2068 if (bp->b_bcount != wi->wi_atareq.datalen) { 2069 printf("physio split wd ioctl request... cannot proceed\n"); 2070 error = EIO; 2071 goto done; 2072 } 2073 2074 /* 2075 * Abort if we didn't get a buffer size that was a multiple of 2076 * our sector size (or was larger than NBBY) 2077 */ 2078 2079 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2080 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2081 (1 << NBBY)) { 2082 error = EINVAL; 2083 goto done; 2084 } 2085 2086 /* 2087 * Make sure a timeout was supplied in the ioctl request 2088 */ 2089 2090 if (wi->wi_atareq.timeout == 0) { 2091 error = EINVAL; 2092 goto done; 2093 } 2094 2095 if (wi->wi_atareq.flags & ATACMD_READ) 2096 ata_c.flags |= AT_READ; 2097 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2098 ata_c.flags |= AT_WRITE; 2099 2100 if (wi->wi_atareq.flags & ATACMD_READREG) 2101 ata_c.flags |= AT_READREG; 2102 2103 ata_c.flags |= AT_WAIT; 2104 2105 ata_c.timeout = wi->wi_atareq.timeout; 2106 ata_c.r_command = wi->wi_atareq.command; 2107 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2108 ata_c.r_cyl = wi->wi_atareq.cylinder; 2109 ata_c.r_sector = wi->wi_atareq.sec_num; 2110 ata_c.r_count = wi->wi_atareq.sec_count; 2111 ata_c.r_features = wi->wi_atareq.features; 2112 ata_c.r_st_bmask = WDCS_DRDY; 2113 ata_c.r_st_pmask = WDCS_DRDY; 2114 ata_c.data = wi->wi_bp.b_data; 2115 ata_c.bcount = wi->wi_bp.b_bcount; 2116 2117 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2118 != ATACMD_COMPLETE) { 2119 wi->wi_atareq.retsts = ATACMD_ERROR; 2120 error = EIO; 2121 goto done; 2122 } 2123 2124 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2125 if (ata_c.flags & AT_ERROR) { 2126 wi->wi_atareq.retsts = ATACMD_ERROR; 2127 wi->wi_atareq.error = ata_c.r_error; 2128 } else if (ata_c.flags & AT_DF) 2129 wi->wi_atareq.retsts = ATACMD_DF; 2130 else 2131 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2132 } else { 2133 wi->wi_atareq.retsts = ATACMD_OK; 2134 if (wi->wi_atareq.flags & ATACMD_READREG) { 2135 wi->wi_atareq.head = ata_c.r_head ; 2136 wi->wi_atareq.cylinder = ata_c.r_cyl; 2137 wi->wi_atareq.sec_num = ata_c.r_sector; 2138 wi->wi_atareq.sec_count = ata_c.r_count; 2139 wi->wi_atareq.features = ata_c.r_features; 2140 wi->wi_atareq.error = ata_c.r_error; 2141 } 2142 } 2143 2144 done: 2145 bp->b_error = error; 2146 biodone(bp); 2147 } 2148
Indexes created Wed Oct 22 00:09:40 GMT 2025