wd.c revision 1.343.4.4
1 /* $NetBSD: wd.c,v 1.343.4.4 2007/10/31 23:14:04 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 1.343.4.4 2007/10/31 23:14:04 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 <sys/intr.h> 97 #include <sys/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 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 259 WD_QUIRK_FORCE_LBA48 }, 260 { NULL, 261 0 } 262 }; 263 264 static const struct wd_quirk * 265 wd_lookup_quirks(const char *name) 266 { 267 const struct wd_quirk *wdq; 268 const char *estr; 269 270 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 271 /* 272 * We only want exact matches (which include matches 273 * against globbing characters). 274 */ 275 if (pmatch(name, wdq->wdq_match, &estr) == 2) 276 return (wdq); 277 } 278 return (NULL); 279 } 280 281 int 282 wdprobe(struct device *parent, struct cfdata *match, void *aux) 283 { 284 struct ata_device *adev = aux; 285 286 if (adev == NULL) 287 return 0; 288 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 289 return 0; 290 291 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 292 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 293 return 0; 294 return 1; 295 } 296 297 void 298 wdattach(struct device *parent, struct device *self, void *aux) 299 { 300 struct wd_softc *wd = (void *)self; 301 struct ata_device *adev= aux; 302 int i, blank; 303 char tbuf[41], pbuf[9], c, *p, *q; 304 const struct wd_quirk *wdq; 305 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 306 307 callout_init(&wd->sc_restart_ch, 0); 308 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 309 #ifdef WD_SOFTBADSECT 310 SLIST_INIT(&wd->sc_bslist); 311 #endif 312 wd->atabus = adev->adev_bustype; 313 wd->openings = adev->adev_openings; 314 wd->drvp = adev->adev_drv_data; 315 316 wd->drvp->drv_done = wddone; 317 wd->drvp->drv_softc = &wd->sc_dev; 318 319 aprint_naive("\n"); 320 321 /* read our drive info */ 322 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 323 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 324 return; 325 } 326 327 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 328 i < sizeof(wd->sc_params.atap_model); i++) { 329 c = *p++; 330 if (c == '\0') 331 break; 332 if (c != ' ') { 333 if (blank) { 334 *q++ = ' '; 335 blank = 0; 336 } 337 *q++ = c; 338 } else 339 blank = 1; 340 } 341 *q++ = '\0'; 342 343 aprint_normal(": <%s>\n", tbuf); 344 345 wdq = wd_lookup_quirks(tbuf); 346 if (wdq != NULL) 347 wd->sc_quirks = wdq->wdq_quirks; 348 349 if (wd->sc_quirks != 0) { 350 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 351 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 352 sbuf, sizeof(sbuf)); 353 aprint_normal("%s: quirks %s\n", wd->sc_dev.dv_xname, sbuf); 354 } 355 356 if ((wd->sc_params.atap_multi & 0xff) > 1) { 357 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 358 } else { 359 wd->sc_multi = 1; 360 } 361 362 aprint_verbose("%s: drive supports %d-sector PIO transfers,", 363 wd->sc_dev.dv_xname, wd->sc_multi); 364 365 /* 48-bit LBA addressing */ 366 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 367 wd->sc_flags |= WDF_LBA48; 368 369 /* Prior to ATA-4, LBA was optional. */ 370 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 371 wd->sc_flags |= WDF_LBA; 372 #if 0 373 /* ATA-4 requires LBA. */ 374 if (wd->sc_params.atap_ataversion != 0xffff && 375 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 376 wd->sc_flags |= WDF_LBA; 377 #endif 378 379 if ((wd->sc_flags & WDF_LBA48) != 0) { 380 aprint_verbose(" LBA48 addressing\n"); 381 wd->sc_capacity = 382 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 383 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 384 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 385 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 386 } else if ((wd->sc_flags & WDF_LBA) != 0) { 387 aprint_verbose(" LBA addressing\n"); 388 wd->sc_capacity = 389 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 390 wd->sc_params.atap_capacity[0]; 391 } else { 392 aprint_verbose(" chs addressing\n"); 393 wd->sc_capacity = 394 wd->sc_params.atap_cylinders * 395 wd->sc_params.atap_heads * 396 wd->sc_params.atap_sectors; 397 } 398 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 399 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 400 "%d bytes/sect x %llu sectors\n", 401 self->dv_xname, pbuf, 402 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 403 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 404 wd->sc_params.atap_cylinders, 405 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 406 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 407 408 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 409 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 410 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 411 /* 412 * Initialize and attach the disk structure. 413 */ 414 /* we fill in dk_info later */ 415 disk_init(&wd->sc_dk, wd->sc_dev.dv_xname, &wddkdriver); 416 disk_attach(&wd->sc_dk); 417 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 418 #if NRND > 0 419 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 420 RND_TYPE_DISK, 0); 421 #endif 422 423 /* Discover wedges on this disk. */ 424 dkwedge_discover(&wd->sc_dk); 425 426 wd->sc_device_down = false; 427 if (pnp_register(self, wd_power) != PNP_STATUS_SUCCESS) 428 aprint_error_dev(self, "couldn't establish power handler\n"); 429 } 430 431 static pnp_status_t 432 wd_power(device_t dv, pnp_request_t req, void *opaque) 433 { 434 struct wd_softc *sc = device_private(dv); 435 pnp_status_t status; 436 pnp_state_t *state; 437 pnp_capabilities_t *caps; 438 439 switch (req) { 440 case PNP_REQUEST_GET_CAPABILITIES: 441 caps = opaque; 442 caps->state = PNP_STATE_D0 | PNP_STATE_D3; 443 break; 444 445 case PNP_REQUEST_SET_STATE: 446 state = opaque; 447 switch (*state) { 448 case PNP_STATE_D0: 449 sc->sc_device_down = false; 450 break; 451 case PNP_STATE_D3: 452 sc->sc_device_down = true; 453 wd_flushcache(sc, AT_POLL); 454 break; 455 default: 456 return PNP_STATUS_UNSUPPORTED; 457 } 458 break; 459 460 case PNP_REQUEST_GET_STATE: 461 state = opaque; 462 if (sc->sc_device_down) 463 *state = PNP_STATE_D3; 464 else 465 *state = PNP_STATE_D0; 466 status = PNP_STATUS_SUCCESS; 467 break; 468 default: 469 return PNP_STATUS_UNSUPPORTED; 470 } 471 472 return PNP_STATUS_SUCCESS; 473 } 474 475 476 int 477 wdactivate(struct device *self, enum devact act) 478 { 479 int rv = 0; 480 481 switch (act) { 482 case DVACT_ACTIVATE: 483 rv = EOPNOTSUPP; 484 break; 485 486 case DVACT_DEACTIVATE: 487 /* 488 * Nothing to do; we key off the device's DVF_ACTIVATE. 489 */ 490 break; 491 } 492 return (rv); 493 } 494 495 int 496 wddetach(struct device *self, int flags) 497 { 498 struct wd_softc *sc = (struct wd_softc *)self; 499 int s, bmaj, cmaj, i, mn; 500 501 /* locate the major number */ 502 bmaj = bdevsw_lookup_major(&wd_bdevsw); 503 cmaj = cdevsw_lookup_major(&wd_cdevsw); 504 505 /* Nuke the vnodes for any open instances. */ 506 for (i = 0; i < MAXPARTITIONS; i++) { 507 mn = WDMINOR(device_unit(self), i); 508 vdevgone(bmaj, mn, mn, VBLK); 509 vdevgone(cmaj, mn, mn, VCHR); 510 } 511 512 /* Delete all of our wedges. */ 513 dkwedge_delall(&sc->sc_dk); 514 515 s = splbio(); 516 517 /* Kill off any queued buffers. */ 518 bufq_drain(sc->sc_q); 519 520 bufq_free(sc->sc_q); 521 sc->atabus->ata_killpending(sc->drvp); 522 523 splx(s); 524 525 /* Detach disk. */ 526 disk_detach(&sc->sc_dk); 527 528 #ifdef WD_SOFTBADSECT 529 /* Clean out the bad sector list */ 530 while (!SLIST_EMPTY(&sc->sc_bslist)) { 531 void *head = SLIST_FIRST(&sc->sc_bslist); 532 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 533 free(head, M_TEMP); 534 } 535 sc->sc_bscount = 0; 536 #endif 537 538 pnp_deregister(self); 539 540 #if NRND > 0 541 /* Unhook the entropy source. */ 542 rnd_detach_source(&sc->rnd_source); 543 #endif 544 545 sc->drvp->drive_flags = 0; /* no drive any more here */ 546 547 return (0); 548 } 549 550 /* 551 * Read/write routine for a buffer. Validates the arguments and schedules the 552 * transfer. Does not wait for the transfer to complete. 553 */ 554 void 555 wdstrategy(struct buf *bp) 556 { 557 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 558 struct disklabel *lp = wd->sc_dk.dk_label; 559 daddr_t blkno; 560 int s; 561 562 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 563 DEBUG_XFERS); 564 565 /* Valid request? */ 566 if (bp->b_blkno < 0 || 567 (bp->b_bcount % lp->d_secsize) != 0 || 568 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 569 bp->b_error = EINVAL; 570 goto done; 571 } 572 573 /* If device invalidated (e.g. media change, door open), error. */ 574 if ((wd->sc_flags & WDF_LOADED) == 0) { 575 bp->b_error = EIO; 576 goto done; 577 } 578 579 /* If it's a null transfer, return immediately. */ 580 if (bp->b_bcount == 0) 581 goto done; 582 583 /* 584 * Do bounds checking, adjust transfer. if error, process. 585 * If end of partition, just return. 586 */ 587 if (WDPART(bp->b_dev) == RAW_PART) { 588 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 589 wd->sc_capacity) <= 0) 590 goto done; 591 } else { 592 if (bounds_check_with_label(&wd->sc_dk, bp, 593 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 594 goto done; 595 } 596 597 /* 598 * Now convert the block number to absolute and put it in 599 * terms of the device's logical block size. 600 */ 601 if (lp->d_secsize >= DEV_BSIZE) 602 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 603 else 604 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 605 606 if (WDPART(bp->b_dev) != RAW_PART) 607 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 608 609 bp->b_rawblkno = blkno; 610 611 #ifdef WD_SOFTBADSECT 612 /* 613 * If the transfer about to be attempted contains only a block that 614 * is known to be bad then return an error for the transfer without 615 * even attempting to start a transfer up under the premis that we 616 * will just end up doing more retries for a transfer that will end 617 * up failing again. 618 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 619 */ 620 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 621 struct disk_badsectors *dbs; 622 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 623 624 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 625 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 626 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 627 bp->b_error = EIO; 628 goto done; 629 } 630 } 631 #endif 632 633 /* Queue transfer on drive, activate drive and controller if idle. */ 634 s = splbio(); 635 BUFQ_PUT(wd->sc_q, bp); 636 wdstart(wd); 637 splx(s); 638 return; 639 done: 640 /* Toss transfer; we're done early. */ 641 bp->b_resid = bp->b_bcount; 642 biodone(bp); 643 } 644 645 /* 646 * Queue a drive for I/O. 647 */ 648 void 649 wdstart(void *arg) 650 { 651 struct wd_softc *wd = arg; 652 struct buf *bp = NULL; 653 654 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 655 DEBUG_XFERS); 656 while (wd->openings > 0) { 657 658 /* Is there a buf for us ? */ 659 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 660 return; 661 662 /* 663 * Make the command. First lock the device 664 */ 665 wd->openings--; 666 667 wd->retries = 0; 668 __wdstart(wd, bp); 669 } 670 } 671 672 static void 673 wd_split_mod15_write(struct buf *bp) 674 { 675 struct buf *obp = bp->b_private; 676 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 677 678 if (__predict_false(bp->b_error != 0)) { 679 /* 680 * Propagate the error. If this was the first half of 681 * the original transfer, make sure to account for that 682 * in the residual. 683 */ 684 if (bp->b_data == obp->b_data) 685 bp->b_resid += bp->b_bcount; 686 goto done; 687 } 688 689 /* 690 * If this was the second half of the transfer, we're all done! 691 */ 692 if (bp->b_data != obp->b_data) 693 goto done; 694 695 /* 696 * Advance the pointer to the second half and issue that command 697 * using the same opening. 698 */ 699 bp->b_flags = obp->b_flags | B_CALL; 700 bp->b_data = (char *)bp->b_data + bp->b_bcount; 701 bp->b_blkno += (bp->b_bcount / 512); 702 bp->b_rawblkno += (bp->b_bcount / 512); 703 __wdstart(sc, bp); 704 return; 705 706 done: 707 obp->b_error = bp->b_error; 708 obp->b_resid = bp->b_resid; 709 putiobuf(bp); 710 biodone(obp); 711 sc->openings++; 712 /* wddone() will call wdstart() */ 713 } 714 715 void 716 __wdstart(struct wd_softc *wd, struct buf *bp) 717 { 718 719 /* 720 * Deal with the "split mod15 write" quirk. We just divide the 721 * transfer in two, doing the first half and then then second half 722 * with the same command opening. 723 * 724 * Note we MUST do this here, because we can't let insertion 725 * into the bufq cause the transfers to be re-merged. 726 */ 727 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 728 (bp->b_flags & B_READ) == 0 && 729 bp->b_bcount > 512 && 730 ((bp->b_bcount / 512) % 15) == 1)) { 731 struct buf *nbp; 732 733 /* already at splbio */ 734 nbp = getiobuf_nowait(); 735 if (__predict_false(nbp == NULL)) { 736 /* No memory -- fail the iop. */ 737 bp->b_error = ENOMEM; 738 bp->b_resid = bp->b_bcount; 739 biodone(bp); 740 wd->openings++; 741 return; 742 } 743 744 nbp->b_error = 0; 745 nbp->b_proc = bp->b_proc; 746 nbp->b_vp = NULLVP; 747 nbp->b_dev = bp->b_dev; 748 749 nbp->b_bcount = bp->b_bcount / 2; 750 nbp->b_bufsize = bp->b_bcount / 2; 751 nbp->b_data = bp->b_data; 752 753 nbp->b_blkno = bp->b_blkno; 754 nbp->b_rawblkno = bp->b_rawblkno; 755 756 nbp->b_flags = bp->b_flags | B_CALL; 757 nbp->b_iodone = wd_split_mod15_write; 758 759 /* Put ptr to orig buf in b_private and use new buf */ 760 nbp->b_private = bp; 761 762 BIO_COPYPRIO(nbp, bp); 763 764 bp = nbp; 765 } 766 767 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 768 wd->sc_wdc_bio.blkdone =0; 769 wd->sc_bp = bp; 770 /* 771 * If we're retrying, retry in single-sector mode. This will give us 772 * the sector number of the problem, and will eventually allow the 773 * transfer to succeed. 774 */ 775 if (wd->retries >= WDIORETRIES_SINGLE) 776 wd->sc_wdc_bio.flags = ATA_SINGLE; 777 else 778 wd->sc_wdc_bio.flags = 0; 779 if (wd->sc_flags & WDF_LBA48 && 780 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 781 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 782 wd->sc_wdc_bio.flags |= ATA_LBA48; 783 if (wd->sc_flags & WDF_LBA) 784 wd->sc_wdc_bio.flags |= ATA_LBA; 785 if (bp->b_flags & B_READ) 786 wd->sc_wdc_bio.flags |= ATA_READ; 787 wd->sc_wdc_bio.bcount = bp->b_bcount; 788 wd->sc_wdc_bio.databuf = bp->b_data; 789 /* Instrumentation. */ 790 disk_busy(&wd->sc_dk); 791 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 792 case ATACMD_TRY_AGAIN: 793 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 794 break; 795 case ATACMD_QUEUED: 796 case ATACMD_COMPLETE: 797 break; 798 default: 799 panic("__wdstart: bad return code from ata_bio()"); 800 } 801 } 802 803 void 804 wddone(void *v) 805 { 806 struct wd_softc *wd = v; 807 struct buf *bp = wd->sc_bp; 808 const char *errmsg; 809 int do_perror = 0; 810 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 811 DEBUG_XFERS); 812 int nblks; 813 814 if (bp == NULL) 815 return; 816 bp->b_resid = wd->sc_wdc_bio.bcount; 817 switch (wd->sc_wdc_bio.error) { 818 case ERR_DMA: 819 errmsg = "DMA error"; 820 goto retry; 821 case ERR_DF: 822 errmsg = "device fault"; 823 goto retry; 824 case TIMEOUT: 825 errmsg = "device timeout"; 826 goto retry; 827 case ERR_RESET: 828 errmsg = "channel reset"; 829 goto retry2; 830 case ERROR: 831 /* Don't care about media change bits */ 832 if (wd->sc_wdc_bio.r_error != 0 && 833 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 834 goto noerror; 835 errmsg = "error"; 836 do_perror = 1; 837 if (wd->sc_wdc_bio.r_error & WDCE_IDNF && 838 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 839 nblks = wd->sc_wdc_bio.bcount / 840 wd->sc_dk.dk_label->d_secsize; 841 /* 842 * If we get a "id not found" when crossing the 843 * LBA48_THRESHOLD, and the drive is larger than 844 * 128GB, then we can assume the drive has the 845 * LBA48 bug and we switch to LBA48. 846 */ 847 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 848 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 849 wd->sc_capacity > LBA48_THRESHOLD + 1) { 850 errmsg = "LBA48 bug"; 851 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 852 do_perror = 0; 853 goto retry2; 854 } 855 } 856 retry: /* Just reset and retry. Can we do more ? */ 857 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 858 retry2: 859 diskerr(bp, "wd", errmsg, LOG_PRINTF, 860 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 861 if (wd->retries < WDIORETRIES) 862 printf(", retrying"); 863 printf("\n"); 864 if (do_perror) 865 wdperror(wd); 866 if (wd->retries < WDIORETRIES) { 867 wd->retries++; 868 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 869 wdrestart, wd); 870 return; 871 } 872 873 #ifdef WD_SOFTBADSECT 874 /* 875 * Not all errors indicate a failed block but those that do, 876 * put the block on the bad-block list for the device. Only 877 * do this for reads because the drive should do it for writes, 878 * itself, according to Manuel. 879 */ 880 if ((bp->b_flags & B_READ) && 881 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 882 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 883 struct disk_badsectors *dbs; 884 885 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 886 dbs->dbs_min = bp->b_rawblkno; 887 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 888 microtime(&dbs->dbs_failedat); 889 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 890 wd->sc_bscount++; 891 } 892 #endif 893 bp->b_error = EIO; 894 break; 895 case NOERROR: 896 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 897 printf("%s: soft error (corrected)\n", 898 wd->sc_dev.dv_xname); 899 break; 900 case ERR_NODEV: 901 bp->b_error = EIO; 902 break; 903 } 904 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 905 (bp->b_flags & B_READ)); 906 #if NRND > 0 907 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 908 #endif 909 /* XXX Yuck, but we don't want to increment openings in this case */ 910 if (__predict_false((bp->b_flags & B_CALL) != 0 && 911 bp->b_iodone == wd_split_mod15_write)) 912 biodone(bp); 913 else { 914 biodone(bp); 915 wd->openings++; 916 } 917 wdstart(wd); 918 } 919 920 void 921 wdrestart(void *v) 922 { 923 struct wd_softc *wd = v; 924 struct buf *bp = wd->sc_bp; 925 int s; 926 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 927 DEBUG_XFERS); 928 929 s = splbio(); 930 __wdstart(v, bp); 931 splx(s); 932 } 933 934 int 935 wdread(dev_t dev, struct uio *uio, int flags) 936 { 937 938 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 939 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 940 } 941 942 int 943 wdwrite(dev_t dev, struct uio *uio, int flags) 944 { 945 946 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 947 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 948 } 949 950 int 951 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 952 { 953 struct wd_softc *wd; 954 int part, error; 955 956 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 957 wd = device_lookup(&wd_cd, WDUNIT(dev)); 958 if (wd == NULL) 959 return (ENXIO); 960 961 if (! device_is_active(&wd->sc_dev)) 962 return (ENODEV); 963 964 part = WDPART(dev); 965 966 mutex_enter(&wd->sc_dk.dk_openlock); 967 968 /* 969 * If there are wedges, and this is not RAW_PART, then we 970 * need to fail. 971 */ 972 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 973 error = EBUSY; 974 goto bad1; 975 } 976 977 /* 978 * If this is the first open of this device, add a reference 979 * to the adapter. 980 */ 981 if (wd->sc_dk.dk_openmask == 0 && 982 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 983 goto bad1; 984 985 if (wd->sc_dk.dk_openmask != 0) { 986 /* 987 * If any partition is open, but the disk has been invalidated, 988 * disallow further opens. 989 */ 990 if ((wd->sc_flags & WDF_LOADED) == 0) { 991 error = EIO; 992 goto bad2; 993 } 994 } else { 995 if ((wd->sc_flags & WDF_LOADED) == 0) { 996 wd->sc_flags |= WDF_LOADED; 997 998 /* Load the physical device parameters. */ 999 wd_get_params(wd, AT_WAIT, &wd->sc_params); 1000 1001 /* Load the partition info if not already loaded. */ 1002 wdgetdisklabel(wd); 1003 } 1004 } 1005 1006 /* Check that the partition exists. */ 1007 if (part != RAW_PART && 1008 (part >= wd->sc_dk.dk_label->d_npartitions || 1009 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 1010 error = ENXIO; 1011 goto bad2; 1012 } 1013 1014 /* Insure only one open at a time. */ 1015 switch (fmt) { 1016 case S_IFCHR: 1017 wd->sc_dk.dk_copenmask |= (1 << part); 1018 break; 1019 case S_IFBLK: 1020 wd->sc_dk.dk_bopenmask |= (1 << part); 1021 break; 1022 } 1023 wd->sc_dk.dk_openmask = 1024 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1025 1026 mutex_exit(&wd->sc_dk.dk_openlock); 1027 return 0; 1028 1029 bad2: 1030 if (wd->sc_dk.dk_openmask == 0) 1031 wd->atabus->ata_delref(wd->drvp); 1032 bad1: 1033 mutex_exit(&wd->sc_dk.dk_openlock); 1034 return error; 1035 } 1036 1037 int 1038 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1039 { 1040 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1041 int part = WDPART(dev); 1042 1043 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1044 1045 mutex_enter(&wd->sc_dk.dk_openlock); 1046 1047 switch (fmt) { 1048 case S_IFCHR: 1049 wd->sc_dk.dk_copenmask &= ~(1 << part); 1050 break; 1051 case S_IFBLK: 1052 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1053 break; 1054 } 1055 wd->sc_dk.dk_openmask = 1056 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1057 1058 if (wd->sc_dk.dk_openmask == 0) { 1059 wd_flushcache(wd, AT_WAIT); 1060 1061 if (! (wd->sc_flags & WDF_KLABEL)) 1062 wd->sc_flags &= ~WDF_LOADED; 1063 1064 wd->atabus->ata_delref(wd->drvp); 1065 } 1066 1067 mutex_exit(&wd->sc_dk.dk_openlock); 1068 return 0; 1069 } 1070 1071 void 1072 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1073 { 1074 1075 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1076 memset(lp, 0, sizeof(struct disklabel)); 1077 1078 lp->d_secsize = DEV_BSIZE; 1079 lp->d_ntracks = wd->sc_params.atap_heads; 1080 lp->d_nsectors = wd->sc_params.atap_sectors; 1081 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1082 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1083 wd->sc_params.atap_cylinders; 1084 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1085 1086 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1087 lp->d_type = DTYPE_ST506; 1088 else 1089 lp->d_type = DTYPE_ESDI; 1090 1091 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1092 strncpy(lp->d_packname, "fictitious", 16); 1093 if (wd->sc_capacity > UINT32_MAX) 1094 lp->d_secperunit = UINT32_MAX; 1095 else 1096 lp->d_secperunit = wd->sc_capacity; 1097 lp->d_rpm = 3600; 1098 lp->d_interleave = 1; 1099 lp->d_flags = 0; 1100 1101 lp->d_partitions[RAW_PART].p_offset = 0; 1102 lp->d_partitions[RAW_PART].p_size = 1103 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1104 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1105 lp->d_npartitions = RAW_PART + 1; 1106 1107 lp->d_magic = DISKMAGIC; 1108 lp->d_magic2 = DISKMAGIC; 1109 lp->d_checksum = dkcksum(lp); 1110 } 1111 1112 /* 1113 * Fabricate a default disk label, and try to read the correct one. 1114 */ 1115 void 1116 wdgetdisklabel(struct wd_softc *wd) 1117 { 1118 struct disklabel *lp = wd->sc_dk.dk_label; 1119 const char *errstring; 1120 int s; 1121 1122 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1123 1124 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1125 1126 wdgetdefaultlabel(wd, lp); 1127 1128 wd->sc_badsect[0] = -1; 1129 1130 if (wd->drvp->state > RESET) { 1131 s = splbio(); 1132 wd->drvp->drive_flags |= DRIVE_RESET; 1133 splx(s); 1134 } 1135 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1136 RAW_PART), wdstrategy, lp, 1137 wd->sc_dk.dk_cpulabel); 1138 if (errstring) { 1139 /* 1140 * This probably happened because the drive's default 1141 * geometry doesn't match the DOS geometry. We 1142 * assume the DOS geometry is now in the label and try 1143 * again. XXX This is a kluge. 1144 */ 1145 if (wd->drvp->state > RESET) { 1146 s = splbio(); 1147 wd->drvp->drive_flags |= DRIVE_RESET; 1148 splx(s); 1149 } 1150 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1151 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1152 } 1153 if (errstring) { 1154 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1155 return; 1156 } 1157 1158 if (wd->drvp->state > RESET) { 1159 s = splbio(); 1160 wd->drvp->drive_flags |= DRIVE_RESET; 1161 splx(s); 1162 } 1163 #ifdef HAS_BAD144_HANDLING 1164 if ((lp->d_flags & D_BADSECT) != 0) 1165 bad144intern(wd); 1166 #endif 1167 } 1168 1169 void 1170 wdperror(const struct wd_softc *wd) 1171 { 1172 static const char *const errstr0_3[] = {"address mark not found", 1173 "track 0 not found", "aborted command", "media change requested", 1174 "id not found", "media changed", "uncorrectable data error", 1175 "bad block detected"}; 1176 static const char *const errstr4_5[] = { 1177 "obsolete (address mark not found)", 1178 "no media/write protected", "aborted command", 1179 "media change requested", "id not found", "media changed", 1180 "uncorrectable data error", "interface CRC error"}; 1181 const char *const *errstr; 1182 int i; 1183 const char *sep = ""; 1184 1185 const char *devname = wd->sc_dev.dv_xname; 1186 struct ata_drive_datas *drvp = wd->drvp; 1187 int errno = wd->sc_wdc_bio.r_error; 1188 1189 if (drvp->ata_vers >= 4) 1190 errstr = errstr4_5; 1191 else 1192 errstr = errstr0_3; 1193 1194 printf("%s: (", devname); 1195 1196 if (errno == 0) 1197 printf("error not notified"); 1198 1199 for (i = 0; i < 8; i++) { 1200 if (errno & (1 << i)) { 1201 printf("%s%s", sep, errstr[i]); 1202 sep = ", "; 1203 } 1204 } 1205 printf(")\n"); 1206 } 1207 1208 int 1209 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1210 { 1211 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1212 int error = 0, s; 1213 #ifdef __HAVE_OLD_DISKLABEL 1214 struct disklabel *newlabel = NULL; 1215 #endif 1216 1217 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1218 1219 if ((wd->sc_flags & WDF_LOADED) == 0) 1220 return EIO; 1221 1222 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1223 if (error != EPASSTHROUGH) 1224 return (error); 1225 1226 switch (xfer) { 1227 #ifdef HAS_BAD144_HANDLING 1228 case DIOCSBAD: 1229 if ((flag & FWRITE) == 0) 1230 return EBADF; 1231 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1232 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1233 bad144intern(wd); 1234 return 0; 1235 #endif 1236 #ifdef WD_SOFTBADSECT 1237 case DIOCBSLIST : 1238 { 1239 u_int32_t count, missing, skip; 1240 struct disk_badsecinfo dbsi; 1241 struct disk_badsectors *dbs; 1242 size_t available; 1243 uint8_t *laddr; 1244 1245 dbsi = *(struct disk_badsecinfo *)addr; 1246 missing = wd->sc_bscount; 1247 count = 0; 1248 available = dbsi.dbsi_bufsize; 1249 skip = dbsi.dbsi_skip; 1250 laddr = (uint8_t *)dbsi.dbsi_buffer; 1251 1252 /* 1253 * We start this loop with the expectation that all of the 1254 * entries will be missed and decrement this counter each 1255 * time we either skip over one (already copied out) or 1256 * we actually copy it back to user space. The structs 1257 * holding the bad sector information are copied directly 1258 * back to user space whilst the summary is returned via 1259 * the struct passed in via the ioctl. 1260 */ 1261 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1262 if (skip > 0) { 1263 missing--; 1264 skip--; 1265 continue; 1266 } 1267 if (available < sizeof(*dbs)) 1268 break; 1269 available -= sizeof(*dbs); 1270 copyout(dbs, laddr, sizeof(*dbs)); 1271 laddr += sizeof(*dbs); 1272 missing--; 1273 count++; 1274 } 1275 dbsi.dbsi_left = missing; 1276 dbsi.dbsi_copied = count; 1277 *(struct disk_badsecinfo *)addr = dbsi; 1278 return 0; 1279 } 1280 1281 case DIOCBSFLUSH : 1282 /* Clean out the bad sector list */ 1283 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1284 void *head = SLIST_FIRST(&wd->sc_bslist); 1285 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1286 free(head, M_TEMP); 1287 } 1288 wd->sc_bscount = 0; 1289 return 0; 1290 #endif 1291 case DIOCGDINFO: 1292 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1293 return 0; 1294 #ifdef __HAVE_OLD_DISKLABEL 1295 case ODIOCGDINFO: 1296 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1297 if (newlabel == NULL) 1298 return EIO; 1299 *newlabel = *(wd->sc_dk.dk_label); 1300 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1301 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1302 else 1303 error = ENOTTY; 1304 free(newlabel, M_TEMP); 1305 return error; 1306 #endif 1307 1308 case DIOCGPART: 1309 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1310 ((struct partinfo *)addr)->part = 1311 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1312 return 0; 1313 1314 case DIOCWDINFO: 1315 case DIOCSDINFO: 1316 #ifdef __HAVE_OLD_DISKLABEL 1317 case ODIOCWDINFO: 1318 case ODIOCSDINFO: 1319 #endif 1320 { 1321 struct disklabel *lp; 1322 1323 if ((flag & FWRITE) == 0) 1324 return EBADF; 1325 1326 #ifdef __HAVE_OLD_DISKLABEL 1327 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1328 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1329 if (newlabel == NULL) 1330 return EIO; 1331 memset(newlabel, 0, sizeof newlabel); 1332 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1333 lp = newlabel; 1334 } else 1335 #endif 1336 lp = (struct disklabel *)addr; 1337 1338 mutex_enter(&wd->sc_dk.dk_openlock); 1339 wd->sc_flags |= WDF_LABELLING; 1340 1341 error = setdisklabel(wd->sc_dk.dk_label, 1342 lp, /*wd->sc_dk.dk_openmask : */0, 1343 wd->sc_dk.dk_cpulabel); 1344 if (error == 0) { 1345 if (wd->drvp->state > RESET) { 1346 s = splbio(); 1347 wd->drvp->drive_flags |= DRIVE_RESET; 1348 splx(s); 1349 } 1350 if (xfer == DIOCWDINFO 1351 #ifdef __HAVE_OLD_DISKLABEL 1352 || xfer == ODIOCWDINFO 1353 #endif 1354 ) 1355 error = writedisklabel(WDLABELDEV(dev), 1356 wdstrategy, wd->sc_dk.dk_label, 1357 wd->sc_dk.dk_cpulabel); 1358 } 1359 1360 wd->sc_flags &= ~WDF_LABELLING; 1361 mutex_exit(&wd->sc_dk.dk_openlock); 1362 #ifdef __HAVE_OLD_DISKLABEL 1363 if (newlabel != NULL) 1364 free(newlabel, M_TEMP); 1365 #endif 1366 return error; 1367 } 1368 1369 case DIOCKLABEL: 1370 if (*(int *)addr) 1371 wd->sc_flags |= WDF_KLABEL; 1372 else 1373 wd->sc_flags &= ~WDF_KLABEL; 1374 return 0; 1375 1376 case DIOCWLABEL: 1377 if ((flag & FWRITE) == 0) 1378 return EBADF; 1379 if (*(int *)addr) 1380 wd->sc_flags |= WDF_WLABEL; 1381 else 1382 wd->sc_flags &= ~WDF_WLABEL; 1383 return 0; 1384 1385 case DIOCGDEFLABEL: 1386 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1387 return 0; 1388 #ifdef __HAVE_OLD_DISKLABEL 1389 case ODIOCGDEFLABEL: 1390 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1391 if (newlabel == NULL) 1392 return EIO; 1393 wdgetdefaultlabel(wd, newlabel); 1394 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1395 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1396 else 1397 error = ENOTTY; 1398 free(newlabel, M_TEMP); 1399 return error; 1400 #endif 1401 1402 #ifdef notyet 1403 case DIOCWFORMAT: 1404 if ((flag & FWRITE) == 0) 1405 return EBADF; 1406 { 1407 register struct format_op *fop; 1408 struct iovec aiov; 1409 struct uio auio; 1410 1411 fop = (struct format_op *)addr; 1412 aiov.iov_base = fop->df_buf; 1413 aiov.iov_len = fop->df_count; 1414 auio.uio_iov = &aiov; 1415 auio.uio_iovcnt = 1; 1416 auio.uio_resid = fop->df_count; 1417 auio.uio_offset = 1418 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1419 auio.uio_vmspace = l->l_proc->p_vmspace; 1420 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1421 &auio); 1422 fop->df_count -= auio.uio_resid; 1423 fop->df_reg[0] = wdc->sc_status; 1424 fop->df_reg[1] = wdc->sc_error; 1425 return error; 1426 } 1427 #endif 1428 case DIOCGCACHE: 1429 return wd_getcache(wd, (int *)addr); 1430 1431 case DIOCSCACHE: 1432 return wd_setcache(wd, *(int *)addr); 1433 1434 case DIOCCACHESYNC: 1435 return wd_flushcache(wd, AT_WAIT); 1436 1437 case ATAIOCCOMMAND: 1438 /* 1439 * Make sure this command is (relatively) safe first 1440 */ 1441 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1442 (flag & FWRITE) == 0) 1443 return (EBADF); 1444 { 1445 struct wd_ioctl *wi; 1446 atareq_t *atareq = (atareq_t *) addr; 1447 int error1; 1448 1449 wi = wi_get(); 1450 wi->wi_softc = wd; 1451 wi->wi_atareq = *atareq; 1452 1453 if (atareq->datalen && atareq->flags & 1454 (ATACMD_READ | ATACMD_WRITE)) { 1455 void *tbuf; 1456 if (atareq->datalen < DEV_BSIZE 1457 && atareq->command == WDCC_IDENTIFY) { 1458 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1459 wi->wi_iov.iov_base = tbuf; 1460 wi->wi_iov.iov_len = DEV_BSIZE; 1461 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1462 } else { 1463 tbuf = NULL; 1464 wi->wi_iov.iov_base = atareq->databuf; 1465 wi->wi_iov.iov_len = atareq->datalen; 1466 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1467 } 1468 wi->wi_uio.uio_iov = &wi->wi_iov; 1469 wi->wi_uio.uio_iovcnt = 1; 1470 wi->wi_uio.uio_resid = atareq->datalen; 1471 wi->wi_uio.uio_offset = 0; 1472 wi->wi_uio.uio_rw = 1473 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1474 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1475 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1476 minphys, &wi->wi_uio); 1477 if (tbuf != NULL && error1 == 0) { 1478 error1 = copyout(tbuf, atareq->databuf, 1479 atareq->datalen); 1480 free(tbuf, M_TEMP); 1481 } 1482 } else { 1483 /* No need to call physio if we don't have any 1484 user data */ 1485 wi->wi_bp.b_flags = 0; 1486 wi->wi_bp.b_data = 0; 1487 wi->wi_bp.b_bcount = 0; 1488 wi->wi_bp.b_dev = 0; 1489 wi->wi_bp.b_proc = l->l_proc; 1490 wdioctlstrategy(&wi->wi_bp); 1491 error1 = wi->wi_bp.b_error; 1492 } 1493 *atareq = wi->wi_atareq; 1494 wi_free(wi); 1495 return(error1); 1496 } 1497 1498 case DIOCAWEDGE: 1499 { 1500 struct dkwedge_info *dkw = (void *) addr; 1501 1502 if ((flag & FWRITE) == 0) 1503 return (EBADF); 1504 1505 /* If the ioctl happens here, the parent is us. */ 1506 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1507 return (dkwedge_add(dkw)); 1508 } 1509 1510 case DIOCDWEDGE: 1511 { 1512 struct dkwedge_info *dkw = (void *) addr; 1513 1514 if ((flag & FWRITE) == 0) 1515 return (EBADF); 1516 1517 /* If the ioctl happens here, the parent is us. */ 1518 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1519 return (dkwedge_del(dkw)); 1520 } 1521 1522 case DIOCLWEDGES: 1523 { 1524 struct dkwedge_list *dkwl = (void *) addr; 1525 1526 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1527 } 1528 1529 case DIOCGSTRATEGY: 1530 { 1531 struct disk_strategy *dks = (void *)addr; 1532 1533 s = splbio(); 1534 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1535 sizeof(dks->dks_name)); 1536 splx(s); 1537 dks->dks_paramlen = 0; 1538 1539 return 0; 1540 } 1541 1542 case DIOCSSTRATEGY: 1543 { 1544 struct disk_strategy *dks = (void *)addr; 1545 struct bufq_state *new; 1546 struct bufq_state *old; 1547 1548 if ((flag & FWRITE) == 0) { 1549 return EBADF; 1550 } 1551 if (dks->dks_param != NULL) { 1552 return EINVAL; 1553 } 1554 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1555 error = bufq_alloc(&new, dks->dks_name, 1556 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1557 if (error) { 1558 return error; 1559 } 1560 s = splbio(); 1561 old = wd->sc_q; 1562 bufq_move(new, old); 1563 wd->sc_q = new; 1564 splx(s); 1565 bufq_free(old); 1566 1567 return 0; 1568 } 1569 1570 default: 1571 return ENOTTY; 1572 } 1573 1574 #ifdef DIAGNOSTIC 1575 panic("wdioctl: impossible"); 1576 #endif 1577 } 1578 1579 #ifdef B_FORMAT 1580 int 1581 wdformat(struct buf *bp) 1582 { 1583 1584 bp->b_flags |= B_FORMAT; 1585 return wdstrategy(bp); 1586 } 1587 #endif 1588 1589 int 1590 wdsize(dev_t dev) 1591 { 1592 struct wd_softc *wd; 1593 int part, omask; 1594 int size; 1595 1596 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1597 1598 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1599 if (wd == NULL) 1600 return (-1); 1601 1602 part = WDPART(dev); 1603 omask = wd->sc_dk.dk_openmask & (1 << part); 1604 1605 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1606 return (-1); 1607 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1608 size = -1; 1609 else 1610 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1611 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1612 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1613 return (-1); 1614 return (size); 1615 } 1616 1617 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1618 static int wddoingadump = 0; 1619 static int wddumprecalibrated = 0; 1620 1621 /* 1622 * Dump core after a system crash. 1623 */ 1624 int 1625 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1626 { 1627 struct wd_softc *wd; /* disk unit to do the I/O */ 1628 struct disklabel *lp; /* disk's disklabel */ 1629 int part, err; 1630 int nblks; /* total number of sectors left to write */ 1631 1632 /* Check if recursive dump; if so, punt. */ 1633 if (wddoingadump) 1634 return EFAULT; 1635 wddoingadump = 1; 1636 1637 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1638 if (wd == NULL) 1639 return (ENXIO); 1640 1641 part = WDPART(dev); 1642 1643 /* Convert to disk sectors. Request must be a multiple of size. */ 1644 lp = wd->sc_dk.dk_label; 1645 if ((size % lp->d_secsize) != 0) 1646 return EFAULT; 1647 nblks = size / lp->d_secsize; 1648 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1649 1650 /* Check transfer bounds against partition size. */ 1651 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1652 return EINVAL; 1653 1654 /* Offset block number to start of partition. */ 1655 blkno += lp->d_partitions[part].p_offset; 1656 1657 /* Recalibrate, if first dump transfer. */ 1658 if (wddumprecalibrated == 0) { 1659 wddumprecalibrated = 1; 1660 (*wd->atabus->ata_reset_drive)(wd->drvp, 1661 AT_POLL | AT_RST_EMERG); 1662 wd->drvp->state = RESET; 1663 } 1664 1665 wd->sc_bp = NULL; 1666 wd->sc_wdc_bio.blkno = blkno; 1667 wd->sc_wdc_bio.flags = ATA_POLL; 1668 if (wd->sc_flags & WDF_LBA48 && 1669 (blkno > LBA48_THRESHOLD || 1670 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1671 wd->sc_wdc_bio.flags |= ATA_LBA48; 1672 if (wd->sc_flags & WDF_LBA) 1673 wd->sc_wdc_bio.flags |= ATA_LBA; 1674 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1675 wd->sc_wdc_bio.databuf = va; 1676 #ifndef WD_DUMP_NOT_TRUSTED 1677 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1678 case ATACMD_TRY_AGAIN: 1679 panic("wddump: try again"); 1680 break; 1681 case ATACMD_QUEUED: 1682 panic("wddump: polled command has been queued"); 1683 break; 1684 case ATACMD_COMPLETE: 1685 break; 1686 } 1687 switch(wd->sc_wdc_bio.error) { 1688 case TIMEOUT: 1689 printf("wddump: device timed out"); 1690 err = EIO; 1691 break; 1692 case ERR_DF: 1693 printf("wddump: drive fault"); 1694 err = EIO; 1695 break; 1696 case ERR_DMA: 1697 printf("wddump: DMA error"); 1698 err = EIO; 1699 break; 1700 case ERROR: 1701 printf("wddump: "); 1702 wdperror(wd); 1703 err = EIO; 1704 break; 1705 case NOERROR: 1706 err = 0; 1707 break; 1708 default: 1709 panic("wddump: unknown error type"); 1710 } 1711 if (err != 0) { 1712 printf("\n"); 1713 return err; 1714 } 1715 #else /* WD_DUMP_NOT_TRUSTED */ 1716 /* Let's just talk about this first... */ 1717 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1718 unit, va, cylin, head, sector); 1719 delay(500 * 1000); /* half a second */ 1720 #endif 1721 1722 wddoingadump = 0; 1723 return 0; 1724 } 1725 1726 #ifdef HAS_BAD144_HANDLING 1727 /* 1728 * Internalize the bad sector table. 1729 */ 1730 void 1731 bad144intern(struct wd_softc *wd) 1732 { 1733 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1734 struct disklabel *lp = wd->sc_dk.dk_label; 1735 int i = 0; 1736 1737 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1738 1739 for (; i < NBT_BAD; i++) { 1740 if (bt->bt_bad[i].bt_cyl == 0xffff) 1741 break; 1742 wd->sc_badsect[i] = 1743 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1744 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1745 (bt->bt_bad[i].bt_trksec & 0xff); 1746 } 1747 for (; i < NBT_BAD+1; i++) 1748 wd->sc_badsect[i] = -1; 1749 } 1750 #endif 1751 1752 static void 1753 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1754 { 1755 prop_dictionary_t disk_info, odisk_info, geom; 1756 const char *cp; 1757 1758 disk_info = prop_dictionary_create(); 1759 1760 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1761 cp = "ST506"; 1762 else { 1763 /* XXX Should have a case for ATA here, too. */ 1764 cp = "ESDI"; 1765 } 1766 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1767 1768 geom = prop_dictionary_create(); 1769 1770 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1771 1772 prop_dictionary_set_uint32(geom, "sector-size", 1773 DEV_BSIZE /* XXX 512? */); 1774 1775 prop_dictionary_set_uint16(geom, "sectors-per-track", 1776 wd->sc_params.atap_sectors); 1777 1778 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1779 wd->sc_params.atap_heads); 1780 1781 if (wd->sc_flags & WDF_LBA) 1782 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1783 wd->sc_capacity / 1784 (wd->sc_params.atap_heads * 1785 wd->sc_params.atap_sectors)); 1786 else 1787 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1788 wd->sc_params.atap_cylinders); 1789 1790 prop_dictionary_set(disk_info, "geometry", geom); 1791 prop_object_release(geom); 1792 1793 prop_dictionary_set(device_properties(&wd->sc_dev), 1794 "disk-info", disk_info); 1795 1796 /* 1797 * Don't release disk_info here; we keep a reference to it. 1798 * disk_detach() will release it when we go away. 1799 */ 1800 1801 odisk_info = wd->sc_dk.dk_info; 1802 wd->sc_dk.dk_info = disk_info; 1803 if (odisk_info) 1804 prop_object_release(odisk_info); 1805 } 1806 1807 int 1808 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1809 { 1810 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1811 case CMD_AGAIN: 1812 return 1; 1813 case CMD_ERR: 1814 /* 1815 * We `know' there's a drive here; just assume it's old. 1816 * This geometry is only used to read the MBR and print a 1817 * (false) attach message. 1818 */ 1819 strncpy(params->atap_model, "ST506", 1820 sizeof params->atap_model); 1821 params->atap_config = ATA_CFG_FIXED; 1822 params->atap_cylinders = 1024; 1823 params->atap_heads = 8; 1824 params->atap_sectors = 17; 1825 params->atap_multi = 1; 1826 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1827 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1828 /* FALLTHROUGH */ 1829 case CMD_OK: 1830 wd_params_to_properties(wd, params); 1831 return 0; 1832 default: 1833 panic("wd_get_params: bad return code from ata_get_params"); 1834 /* NOTREACHED */ 1835 } 1836 } 1837 1838 int 1839 wd_getcache(struct wd_softc *wd, int *bitsp) 1840 { 1841 struct ataparams params; 1842 1843 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1844 return EIO; 1845 if (params.atap_cmd_set1 == 0x0000 || 1846 params.atap_cmd_set1 == 0xffff || 1847 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1848 *bitsp = 0; 1849 return 0; 1850 } 1851 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1852 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1853 *bitsp |= DKCACHE_WRITE; 1854 1855 return 0; 1856 } 1857 1858 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1859 1860 int 1861 wd_setcache(struct wd_softc *wd, int bits) 1862 { 1863 struct ataparams params; 1864 struct ata_command ata_c; 1865 1866 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1867 return EIO; 1868 1869 if (params.atap_cmd_set1 == 0x0000 || 1870 params.atap_cmd_set1 == 0xffff || 1871 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1872 return EOPNOTSUPP; 1873 1874 if ((bits & DKCACHE_READ) == 0 || 1875 (bits & DKCACHE_SAVE) != 0) 1876 return EOPNOTSUPP; 1877 1878 memset(&ata_c, 0, sizeof(struct ata_command)); 1879 ata_c.r_command = SET_FEATURES; 1880 ata_c.r_st_bmask = 0; 1881 ata_c.r_st_pmask = 0; 1882 ata_c.timeout = 30000; /* 30s timeout */ 1883 ata_c.flags = AT_WAIT; 1884 if (bits & DKCACHE_WRITE) 1885 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1886 else 1887 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1888 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1889 printf("%s: wd_setcache command not complete\n", 1890 wd->sc_dev.dv_xname); 1891 return EIO; 1892 } 1893 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1894 char sbuf[sizeof(at_errbits) + 64]; 1895 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1896 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1897 sbuf); 1898 return EIO; 1899 } 1900 return 0; 1901 } 1902 1903 int 1904 wd_standby(struct wd_softc *wd, int flags) 1905 { 1906 struct ata_command ata_c; 1907 1908 memset(&ata_c, 0, sizeof(struct ata_command)); 1909 ata_c.r_command = WDCC_STANDBY_IMMED; 1910 ata_c.r_st_bmask = WDCS_DRDY; 1911 ata_c.r_st_pmask = WDCS_DRDY; 1912 ata_c.flags = flags; 1913 ata_c.timeout = 30000; /* 30s timeout */ 1914 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1915 printf("%s: standby immediate command didn't complete\n", 1916 wd->sc_dev.dv_xname); 1917 return EIO; 1918 } 1919 if (ata_c.flags & AT_ERROR) { 1920 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1921 return ENODEV; 1922 } 1923 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1924 char sbuf[sizeof(at_errbits) + 64]; 1925 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1926 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1927 sbuf); 1928 return EIO; 1929 } 1930 return 0; 1931 } 1932 1933 int 1934 wd_flushcache(struct wd_softc *wd, int flags) 1935 { 1936 struct ata_command ata_c; 1937 1938 /* 1939 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1940 * only ATA-2 and still support it. 1941 */ 1942 if (wd->drvp->ata_vers < 4 && 1943 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1944 wd->sc_params.atap_cmd_set2 == 0xffff)) 1945 return ENODEV; 1946 memset(&ata_c, 0, sizeof(struct ata_command)); 1947 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1948 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1949 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1950 else 1951 ata_c.r_command = WDCC_FLUSHCACHE; 1952 ata_c.r_st_bmask = WDCS_DRDY; 1953 ata_c.r_st_pmask = WDCS_DRDY; 1954 ata_c.flags = flags; 1955 ata_c.timeout = 30000; /* 30s timeout */ 1956 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1957 printf("%s: flush cache command didn't complete\n", 1958 wd->sc_dev.dv_xname); 1959 return EIO; 1960 } 1961 if (ata_c.flags & AT_ERROR) { 1962 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1963 return ENODEV; 1964 } 1965 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1966 char sbuf[sizeof(at_errbits) + 64]; 1967 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1968 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1969 sbuf); 1970 return EIO; 1971 } 1972 return 0; 1973 } 1974 1975 /* 1976 * Allocate space for a ioctl queue structure. Mostly taken from 1977 * scsipi_ioctl.c 1978 */ 1979 struct wd_ioctl * 1980 wi_get(void) 1981 { 1982 struct wd_ioctl *wi; 1983 int s; 1984 1985 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1986 simple_lock_init(&wi->wi_bp.b_interlock); 1987 s = splbio(); 1988 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1989 splx(s); 1990 return (wi); 1991 } 1992 1993 /* 1994 * Free an ioctl structure and remove it from our list 1995 */ 1996 1997 void 1998 wi_free(struct wd_ioctl *wi) 1999 { 2000 int s; 2001 2002 s = splbio(); 2003 LIST_REMOVE(wi, wi_list); 2004 splx(s); 2005 free(wi, M_TEMP); 2006 } 2007 2008 /* 2009 * Find a wd_ioctl structure based on the struct buf. 2010 */ 2011 2012 struct wd_ioctl * 2013 wi_find(struct buf *bp) 2014 { 2015 struct wd_ioctl *wi; 2016 int s; 2017 2018 s = splbio(); 2019 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2020 if (bp == &wi->wi_bp) 2021 break; 2022 splx(s); 2023 return (wi); 2024 } 2025 2026 /* 2027 * Ioctl pseudo strategy routine 2028 * 2029 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2030 * happens here is: 2031 * 2032 * - wdioctl() queues a wd_ioctl structure. 2033 * 2034 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2035 * user space I/O is required. If physio() is called, physio() eventually 2036 * calls wdioctlstrategy(). 2037 * 2038 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2039 * to perform the actual command 2040 * 2041 * The reason for the use of the pseudo strategy routine is because 2042 * when doing I/O to/from user space, physio _really_ wants to be in 2043 * the loop. We could put the entire buffer into the ioctl request 2044 * structure, but that won't scale if we want to do things like download 2045 * microcode. 2046 */ 2047 2048 void 2049 wdioctlstrategy(struct buf *bp) 2050 { 2051 struct wd_ioctl *wi; 2052 struct ata_command ata_c; 2053 int error = 0; 2054 2055 wi = wi_find(bp); 2056 if (wi == NULL) { 2057 printf("wdioctlstrategy: " 2058 "No matching ioctl request found in queue\n"); 2059 error = EINVAL; 2060 goto done; 2061 } 2062 2063 memset(&ata_c, 0, sizeof(ata_c)); 2064 2065 /* 2066 * Abort if physio broke up the transfer 2067 */ 2068 2069 if (bp->b_bcount != wi->wi_atareq.datalen) { 2070 printf("physio split wd ioctl request... cannot proceed\n"); 2071 error = EIO; 2072 goto done; 2073 } 2074 2075 /* 2076 * Abort if we didn't get a buffer size that was a multiple of 2077 * our sector size (or was larger than NBBY) 2078 */ 2079 2080 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2081 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2082 (1 << NBBY)) { 2083 error = EINVAL; 2084 goto done; 2085 } 2086 2087 /* 2088 * Make sure a timeout was supplied in the ioctl request 2089 */ 2090 2091 if (wi->wi_atareq.timeout == 0) { 2092 error = EINVAL; 2093 goto done; 2094 } 2095 2096 if (wi->wi_atareq.flags & ATACMD_READ) 2097 ata_c.flags |= AT_READ; 2098 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2099 ata_c.flags |= AT_WRITE; 2100 2101 if (wi->wi_atareq.flags & ATACMD_READREG) 2102 ata_c.flags |= AT_READREG; 2103 2104 ata_c.flags |= AT_WAIT; 2105 2106 ata_c.timeout = wi->wi_atareq.timeout; 2107 ata_c.r_command = wi->wi_atareq.command; 2108 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2109 ata_c.r_cyl = wi->wi_atareq.cylinder; 2110 ata_c.r_sector = wi->wi_atareq.sec_num; 2111 ata_c.r_count = wi->wi_atareq.sec_count; 2112 ata_c.r_features = wi->wi_atareq.features; 2113 ata_c.r_st_bmask = WDCS_DRDY; 2114 ata_c.r_st_pmask = WDCS_DRDY; 2115 ata_c.data = wi->wi_bp.b_data; 2116 ata_c.bcount = wi->wi_bp.b_bcount; 2117 2118 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2119 != ATACMD_COMPLETE) { 2120 wi->wi_atareq.retsts = ATACMD_ERROR; 2121 error = EIO; 2122 goto done; 2123 } 2124 2125 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2126 if (ata_c.flags & AT_ERROR) { 2127 wi->wi_atareq.retsts = ATACMD_ERROR; 2128 wi->wi_atareq.error = ata_c.r_error; 2129 } else if (ata_c.flags & AT_DF) 2130 wi->wi_atareq.retsts = ATACMD_DF; 2131 else 2132 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2133 } else { 2134 wi->wi_atareq.retsts = ATACMD_OK; 2135 if (wi->wi_atareq.flags & ATACMD_READREG) { 2136 wi->wi_atareq.head = ata_c.r_head ; 2137 wi->wi_atareq.cylinder = ata_c.r_cyl; 2138 wi->wi_atareq.sec_num = ata_c.r_sector; 2139 wi->wi_atareq.sec_count = ata_c.r_count; 2140 wi->wi_atareq.features = ata_c.r_features; 2141 wi->wi_atareq.error = ata_c.r_error; 2142 } 2143 } 2144 2145 done: 2146 bp->b_error = error; 2147 biodone(bp); 2148 } 2149
Indexes created Tue Oct 21 08:09:48 GMT 2025