2 * Copyright (c) 2000,2001,2002 Søren Schmidt <sos@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
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. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/dev/ata/ata-raid.c,v 1.3.2.19 2003/01/30 07:19:59 sos Exp $
29 * $DragonFly: src/sys/dev/disk/ata/ata-raid.c,v 1.2 2003/06/17 04:28:22 dillon Exp $
33 #include <sys/param.h>
34 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/malloc.h>
42 #include <sys/devicestat.h>
44 #include <machine/bus.h>
46 #include <dev/ata/ata-all.h>
47 #include <dev/ata/ata-disk.h>
48 #include <dev/ata/ata-raid.h>
50 /* device structures */
51 static d_open_t aropen;
52 static d_strategy_t arstrategy;
53 static struct cdevsw ar_cdevsw = {
55 /* close */ nullclose,
57 /* write */ physwrite,
61 /* strategy */ arstrategy,
69 static struct cdevsw ardisk_cdevsw;
72 static void ar_attach_raid(struct ar_softc *, int);
73 static void ar_done(struct buf *);
74 static void ar_config_changed(struct ar_softc *, int);
75 static int ar_rebuild(struct ar_softc *);
76 static int ar_highpoint_read_conf(struct ad_softc *, struct ar_softc **);
77 static int ar_highpoint_write_conf(struct ar_softc *);
78 static int ar_promise_read_conf(struct ad_softc *, struct ar_softc **, int);
79 static int ar_promise_write_conf(struct ar_softc *);
80 static int ar_rw(struct ad_softc *, u_int32_t, int, caddr_t, int);
81 static struct ata_device *ar_locate_disk(int);
84 static struct ar_softc **ar_table = NULL;
85 static MALLOC_DEFINE(M_AR, "AR driver", "ATA RAID driver");
88 ata_raiddisk_attach(struct ad_softc *adp)
94 for (array = 0; array < MAX_ARRAYS; array++) {
95 if (!(rdp = ar_table[array]) || !rdp->flags)
98 for (disk = 0; disk < rdp->total_disks; disk++) {
99 if ((rdp->disks[disk].flags & AR_DF_ASSIGNED) &&
100 rdp->disks[disk].device == adp->device) {
101 ata_prtdev(rdp->disks[disk].device,
102 "inserted into ar%d disk%d as spare\n",
104 rdp->disks[disk].flags |= (AR_DF_PRESENT | AR_DF_SPARE);
105 AD_SOFTC(rdp->disks[disk])->flags = AD_F_RAID_SUBDISK;
106 ar_config_changed(rdp, 1);
114 ar_table = malloc(sizeof(struct ar_soft *) * MAX_ARRAYS,
115 M_AR, M_NOWAIT | M_ZERO);
117 ata_prtdev(adp->device, "no memory for ATA raid array\n");
121 switch(adp->device->channel->chiptype) {
122 case 0x4d33105a: case 0x4d38105a: case 0x4d30105a:
123 case 0x0d30105a: case 0x4d68105a: case 0x6268105a:
124 case 0x4d69105a: case 0x5275105a: case 0x6269105a:
126 /* test RAID bit in PCI reg XXX */
127 return (ar_promise_read_conf(adp, ar_table, 0));
129 case 0x00041103: case 0x00051103: case 0x00081103:
130 return (ar_highpoint_read_conf(adp, ar_table));
133 return (ar_promise_read_conf(adp, ar_table, 1));
139 ata_raiddisk_detach(struct ad_softc *adp)
141 struct ar_softc *rdp;
145 for (array = 0; array < MAX_ARRAYS; array++) {
146 if (!(rdp = ar_table[array]) || !rdp->flags)
148 for (disk = 0; disk < rdp->total_disks; disk++) {
149 if (rdp->disks[disk].device == adp->device) {
150 ata_prtdev(rdp->disks[disk].device,
151 "deleted from ar%d disk%d\n", array, disk);
152 rdp->disks[disk].flags &= ~(AR_DF_PRESENT | AR_DF_ONLINE);
153 AD_SOFTC(rdp->disks[disk])->flags &= ~AD_F_RAID_SUBDISK;
154 ar_config_changed(rdp, 1);
166 struct ar_softc *rdp;
172 for (array = 0; array < MAX_ARRAYS; array++) {
173 if (!(rdp = ar_table[array]) || !rdp->flags)
175 ar_attach_raid(rdp, 0);
180 ar_attach_raid(struct ar_softc *rdp, int update)
185 ar_config_changed(rdp, update);
186 dev = disk_create(rdp->lun, &rdp->disk, 0, &ar_cdevsw, &ardisk_cdevsw);
188 dev->si_iosize_max = 256 * DEV_BSIZE;
191 printf("ar%d: %lluMB <ATA ", rdp->lun, (unsigned long long)
192 (rdp->total_sectors / ((1024L * 1024L) / DEV_BSIZE)));
193 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
195 printf("RAID0 "); break;
197 printf("RAID1 "); break;
199 printf("SPAN "); break;
200 case (AR_F_RAID0 | AR_F_RAID1):
201 printf("RAID0+1 "); break;
203 printf("unknown 0x%x> ", rdp->flags);
206 printf("array> [%d/%d/%d] status: ",
207 rdp->cylinders, rdp->heads, rdp->sectors);
208 switch (rdp->flags & (AR_F_DEGRADED | AR_F_READY)) {
212 case (AR_F_DEGRADED | AR_F_READY):
219 printf(" subdisks:\n");
220 for (disk = 0; disk < rdp->total_disks; disk++) {
221 if (rdp->disks[disk].flags & AR_DF_PRESENT) {
222 if (rdp->disks[disk].flags & AR_DF_ONLINE)
223 printf(" %d READY ", disk);
224 else if (rdp->disks[disk].flags & AR_DF_SPARE)
225 printf(" %d SPARE ", disk);
227 printf(" %d FREE ", disk);
228 ad_print(AD_SOFTC(rdp->disks[disk]));
230 ata_enclosure_print(AD_SOFTC(rdp->disks[disk])->device);
232 else if (rdp->disks[disk].flags & AR_DF_ASSIGNED)
233 printf(" %d DOWN\n", disk);
235 printf(" %d INVALID no RAID config info on this disk\n", disk);
240 ata_raid_create(struct raid_setup *setup)
242 struct ata_device *atadev;
243 struct ar_softc *rdp;
245 int ctlr = 0, disk_size = 0, total_disks = 0;
248 ar_table = malloc(sizeof(struct ar_soft *) * MAX_ARRAYS,
249 M_AR, M_NOWAIT | M_ZERO);
251 printf("ar: no memory for ATA raid array\n");
254 for (array = 0; array < MAX_ARRAYS; array++) {
255 if (!ar_table[array])
258 if (array >= MAX_ARRAYS)
261 if (!(rdp = (struct ar_softc*)malloc(sizeof(struct ar_softc), M_AR,
262 M_NOWAIT | M_ZERO))) {
263 printf("ar%d: failed to allocate raid config storage\n", array);
267 for (disk = 0; disk < setup->total_disks; disk++) {
268 if ((atadev = ar_locate_disk(setup->disks[disk]))) {
269 rdp->disks[disk].device = atadev;
270 if (AD_SOFTC(rdp->disks[disk])->flags & AD_F_RAID_SUBDISK) {
271 setup->disks[disk] = -1;
276 switch (rdp->disks[disk].device->channel->chiptype & 0xffff) {
278 ctlr |= AR_F_HIGHPOINT_RAID;
279 rdp->disks[disk].disk_sectors =
280 AD_SOFTC(rdp->disks[disk])->total_secs;
284 ctlr |= AR_F_FREEBSD_RAID;
288 ctlr |= AR_F_PROMISE_RAID;
289 rdp->disks[disk].disk_sectors =
290 PR_LBA(AD_SOFTC(rdp->disks[disk]));
293 if ((rdp->flags & (AR_F_PROMISE_RAID|AR_F_HIGHPOINT_RAID)) &&
294 (rdp->flags & (AR_F_PROMISE_RAID|AR_F_HIGHPOINT_RAID)) !=
295 (ctlr & (AR_F_PROMISE_RAID|AR_F_HIGHPOINT_RAID))) {
303 disk_size = min(rdp->disks[disk].disk_sectors, disk_size);
305 disk_size = rdp->disks[disk].disk_sectors;
306 rdp->disks[disk].flags =
307 (AR_DF_PRESENT | AR_DF_ASSIGNED | AR_DF_ONLINE);
312 setup->disks[disk] = -1;
322 switch (setup->type) {
324 rdp->flags |= AR_F_RAID0;
327 rdp->flags |= AR_F_RAID1;
328 if (total_disks != 2) {
334 rdp->flags |= (AR_F_RAID0 | AR_F_RAID1);
335 if (total_disks % 2 != 0) {
341 rdp->flags |= AR_F_SPAN;
345 for (disk = 0; disk < total_disks; disk++)
346 AD_SOFTC(rdp->disks[disk])->flags = AD_F_RAID_SUBDISK;
349 if (rdp->flags & AR_F_RAID0) {
352 while (setup->interleave >>= 1)
354 if (rdp->flags & AR_F_PROMISE_RAID)
355 rdp->interleave = min(max(2, 1 << bit), 2048);
356 if (rdp->flags & AR_F_HIGHPOINT_RAID)
357 rdp->interleave = min(max(32, 1 << bit), 128);
359 rdp->total_disks = total_disks;
360 rdp->width = total_disks / ((rdp->flags & AR_F_RAID1) ? 2 : 1);
361 rdp->total_sectors = disk_size * rdp->width;
364 rdp->cylinders = rdp->total_sectors / (255 * 63);
365 if (rdp->flags & AR_F_PROMISE_RAID) {
369 if (rdp->flags & AR_F_HIGHPOINT_RAID) {
370 rdp->offset = HPT_LBA + 1;
371 rdp->reserved = HPT_LBA + 1;
373 rdp->lock_start = rdp->lock_end = 0xffffffff;
374 rdp->flags |= AR_F_READY;
376 ar_table[array] = rdp;
377 ar_attach_raid(rdp, 1);
383 ata_raid_delete(int array)
385 struct ar_softc *rdp;
389 printf("ar: no memory for ATA raid array\n");
392 if (!(rdp = ar_table[array]))
395 rdp->flags &= ~AR_F_READY;
396 for (disk = 0; disk < rdp->total_disks; disk++) {
397 if ((rdp->disks[disk].flags&AR_DF_PRESENT) && rdp->disks[disk].device) {
398 AD_SOFTC(rdp->disks[disk])->flags &= ~AD_F_RAID_SUBDISK;
399 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_GREEN);
400 rdp->disks[disk].flags = 0;
403 if (rdp->flags & AR_F_PROMISE_RAID)
404 ar_promise_write_conf(rdp);
406 ar_highpoint_write_conf(rdp);
407 disk_invalidate(&rdp->disk);
408 disk_destroy(rdp->dev);
410 ar_table[array] = NULL;
415 ata_raid_status(int array, struct raid_status *status)
417 struct ar_softc *rdp;
420 if (!ar_table || !(rdp = ar_table[array]))
423 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
425 status->type = AR_RAID0;
428 status->type = AR_RAID1;
430 case AR_F_RAID0 | AR_F_RAID1:
431 status->type = AR_RAID0 | AR_RAID1;
434 status->type = AR_SPAN;
437 status->total_disks = rdp->total_disks;
438 for (i = 0; i < rdp->total_disks; i++ ) {
439 if ((rdp->disks[i].flags & AR_DF_PRESENT) && rdp->disks[i].device)
440 status->disks[i] = AD_SOFTC(rdp->disks[i])->lun;
442 status->disks[i] = -1;
444 status->interleave = rdp->interleave;
446 if (rdp->flags & AR_F_READY)
447 status->status |= AR_READY;
448 if (rdp->flags & AR_F_DEGRADED)
449 status->status |= AR_DEGRADED;
450 if (rdp->flags & AR_F_REBUILDING) {
451 status->status |= AR_REBUILDING;
452 status->progress = 100*rdp->lock_start/(rdp->total_sectors/rdp->width);
458 ata_raid_rebuild(int array)
460 struct ar_softc *rdp;
462 if (!ar_table || !(rdp = ar_table[array]))
464 if (rdp->flags & AR_F_REBUILDING)
466 /* create process here XXX SOS */
467 return ar_rebuild(rdp);
471 aropen(dev_t dev, int flags, int fmt, struct proc *p)
473 struct ar_softc *rdp = dev->si_drv1;
474 struct disklabel *dl;
476 dl = &rdp->disk.d_label;
477 bzero(dl, sizeof *dl);
478 dl->d_secsize = DEV_BSIZE;
479 dl->d_nsectors = rdp->sectors;
480 dl->d_ntracks = rdp->heads;
481 dl->d_ncylinders = rdp->cylinders;
482 dl->d_secpercyl = rdp->sectors * rdp->heads;
483 dl->d_secperunit = rdp->total_sectors;
488 arstrategy(struct buf *bp)
490 struct ar_softc *rdp = bp->b_dev->si_drv1;
491 int blkno, count, chunk, lba, lbs, tmplba;
492 int drv = 0, change = 0;
495 if (!(rdp->flags & AR_F_READY)) {
496 bp->b_flags |= B_ERROR;
502 bp->b_resid = bp->b_bcount;
503 blkno = bp->b_pblkno;
505 for (count = howmany(bp->b_bcount, DEV_BSIZE); count > 0;
506 count -= chunk, blkno += chunk, data += (chunk * DEV_BSIZE)) {
507 struct ar_buf *buf1, *buf2;
509 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
512 while (lba >= AD_SOFTC(rdp->disks[drv])->total_secs-rdp->reserved)
513 lba -= AD_SOFTC(rdp->disks[drv++])->total_secs-rdp->reserved;
514 chunk = min(AD_SOFTC(rdp->disks[drv])->total_secs-rdp->reserved-lba,
519 case AR_F_RAID0 | AR_F_RAID1:
520 tmplba = blkno / rdp->interleave;
521 chunk = blkno % rdp->interleave;
522 if (tmplba == rdp->total_sectors / rdp->interleave) {
523 lbs = (rdp->total_sectors-(tmplba*rdp->interleave))/rdp->width;
525 lba = ((tmplba/rdp->width)*rdp->interleave) + chunk%lbs;
526 chunk = min(count, lbs);
529 drv = tmplba % rdp->width;
530 lba = ((tmplba / rdp->width) * rdp->interleave) + chunk;
531 chunk = min(count, rdp->interleave - chunk);
542 printf("ar%d: unknown array type in arstrategy\n", rdp->lun);
543 bp->b_flags |= B_ERROR;
549 buf1 = malloc(sizeof(struct ar_buf), M_AR, M_NOWAIT | M_ZERO);
550 BUF_LOCKINIT(&buf1->bp);
551 BUF_LOCK(&buf1->bp, LK_EXCLUSIVE);
552 buf1->bp.b_pblkno = lba;
553 if ((buf1->drive = drv) > 0)
554 buf1->bp.b_pblkno += rdp->offset;
555 buf1->bp.b_caller1 = (void *)rdp;
556 buf1->bp.b_bcount = chunk * DEV_BSIZE;
557 buf1->bp.b_data = data;
558 buf1->bp.b_flags = bp->b_flags | B_CALL;
559 buf1->bp.b_iodone = ar_done;
562 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
565 if ((rdp->disks[buf1->drive].flags &
566 (AR_DF_PRESENT|AR_DF_ONLINE))==(AR_DF_PRESENT|AR_DF_ONLINE) &&
567 !AD_SOFTC(rdp->disks[buf1->drive])->dev->si_disk) {
568 rdp->disks[buf1->drive].flags &= ~AR_DF_ONLINE;
569 ar_config_changed(rdp, 1);
571 bp->b_flags |= B_ERROR;
576 buf1->bp.b_dev = AD_SOFTC(rdp->disks[buf1->drive])->dev;
577 AR_STRATEGY((struct buf *)buf1);
581 case AR_F_RAID0 | AR_F_RAID1:
582 if ((rdp->flags & AR_F_REBUILDING) && !(bp->b_flags & B_READ)) {
583 if ((bp->b_pblkno >= rdp->lock_start &&
584 bp->b_pblkno < rdp->lock_end) ||
585 ((bp->b_pblkno + chunk) > rdp->lock_start &&
586 (bp->b_pblkno + chunk) <= rdp->lock_end)) {
587 tsleep(rdp, PRIBIO, "arwait", 0);
590 if ((rdp->disks[buf1->drive].flags &
591 (AR_DF_PRESENT|AR_DF_ONLINE))==(AR_DF_PRESENT|AR_DF_ONLINE) &&
592 !AD_SOFTC(rdp->disks[buf1->drive])->dev->si_disk) {
593 rdp->disks[buf1->drive].flags &= ~AR_DF_ONLINE;
596 if ((rdp->disks[buf1->drive + rdp->width].flags &
597 (AR_DF_PRESENT|AR_DF_ONLINE))==(AR_DF_PRESENT|AR_DF_ONLINE) &&
598 !AD_SOFTC(rdp->disks[buf1->drive + rdp->width])->dev->si_disk) {
599 rdp->disks[buf1->drive + rdp->width].flags &= ~AR_DF_ONLINE;
603 ar_config_changed(rdp, 1);
605 if (!(rdp->flags & AR_F_READY)) {
607 bp->b_flags |= B_ERROR;
612 if (bp->b_flags & B_READ) {
613 if ((buf1->bp.b_pblkno <
614 (rdp->disks[buf1->drive].last_lba - AR_PROXIMITY) ||
616 (rdp->disks[buf1->drive].last_lba + AR_PROXIMITY) ||
617 !(rdp->disks[buf1->drive].flags & AR_DF_ONLINE)) &&
618 (rdp->disks[buf1->drive+rdp->width].flags & AR_DF_ONLINE))
619 buf1->drive = buf1->drive + rdp->width;
622 if ((rdp->disks[buf1->drive+rdp->width].flags & AR_DF_ONLINE) ||
623 ((rdp->flags & AR_F_REBUILDING) &&
624 (rdp->disks[buf1->drive+rdp->width].flags & AR_DF_SPARE) &&
625 buf1->bp.b_pblkno < rdp->lock_start)) {
626 if ((rdp->disks[buf1->drive].flags & AR_DF_ONLINE) ||
627 ((rdp->flags & AR_F_REBUILDING) &&
628 (rdp->disks[buf1->drive].flags & AR_DF_SPARE) &&
629 buf1->bp.b_pblkno < rdp->lock_start)) {
630 buf2 = malloc(sizeof(struct ar_buf), M_AR, M_NOWAIT);
631 bcopy(buf1, buf2, sizeof(struct ar_buf));
632 BUF_LOCKINIT(&buf2->bp);
633 BUF_LOCK(&buf2->bp, LK_EXCLUSIVE);
636 buf2->drive = buf1->drive + rdp->width;
637 buf2->bp.b_dev = AD_SOFTC(rdp->disks[buf2->drive])->dev;
638 AR_STRATEGY((struct buf *)buf2);
639 rdp->disks[buf2->drive].last_lba =
640 buf2->bp.b_pblkno + chunk;
643 buf1->drive = buf1->drive + rdp->width;
646 buf1->bp.b_dev = AD_SOFTC(rdp->disks[buf1->drive])->dev;
647 AR_STRATEGY((struct buf *)buf1);
648 rdp->disks[buf1->drive].last_lba = buf1->bp.b_pblkno + chunk;
652 printf("ar%d: unknown array type in arstrategy\n", rdp->lun);
658 ar_done(struct buf *bp)
660 struct ar_softc *rdp = (struct ar_softc *)bp->b_caller1;
661 struct ar_buf *buf = (struct ar_buf *)bp;
663 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
666 if (buf->bp.b_flags & B_ERROR) {
667 rdp->disks[buf->drive].flags &= ~AR_DF_ONLINE;
668 ar_config_changed(rdp, 1);
669 buf->org->b_flags |= B_ERROR;
670 buf->org->b_error = EIO;
674 buf->org->b_resid -= buf->bp.b_bcount;
675 if (buf->org->b_resid == 0)
681 case AR_F_RAID0 | AR_F_RAID1:
682 if (buf->bp.b_flags & B_ERROR) {
683 rdp->disks[buf->drive].flags &= ~AR_DF_ONLINE;
684 ar_config_changed(rdp, 1);
685 if (rdp->flags & AR_F_READY) {
686 if (buf->bp.b_flags & B_READ) {
687 if (buf->drive < rdp->width)
688 buf->drive = buf->drive + rdp->width;
690 buf->drive = buf->drive - rdp->width;
691 buf->bp.b_dev = AD_SOFTC(rdp->disks[buf->drive])->dev;
692 buf->bp.b_flags = buf->org->b_flags | B_CALL;
694 AR_STRATEGY((struct buf *)buf);
698 if (buf->flags & AB_F_DONE) {
699 buf->org->b_resid -= buf->bp.b_bcount;
700 if (buf->org->b_resid == 0)
704 buf->mirror->flags |= AB_F_DONE;
708 buf->org->b_flags |= B_ERROR;
709 buf->org->b_error = EIO;
714 if (!(buf->bp.b_flags & B_READ)) {
715 if (buf->mirror && !(buf->flags & AB_F_DONE)){
716 buf->mirror->flags |= AB_F_DONE;
720 buf->org->b_resid -= buf->bp.b_bcount;
721 if (buf->org->b_resid == 0)
727 printf("ar%d: unknown array type in ar_done\n", rdp->lun);
733 ar_config_changed(struct ar_softc *rdp, int writeback)
738 rdp->flags |= AR_F_READY;
739 rdp->flags &= ~AR_F_DEGRADED;
741 for (disk = 0; disk < rdp->total_disks; disk++)
742 if (!(rdp->disks[disk].flags & AR_DF_PRESENT))
743 rdp->disks[disk].flags &= ~AR_DF_ONLINE;
745 for (disk = 0; disk < rdp->total_disks; disk++) {
746 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
749 if (!(rdp->disks[disk].flags & AR_DF_ONLINE)) {
750 rdp->flags &= ~AR_F_READY;
751 printf("ar%d: ERROR - array broken\n", rdp->lun);
756 case AR_F_RAID0 | AR_F_RAID1:
757 if (disk < rdp->width) {
758 if (!(rdp->disks[disk].flags & AR_DF_ONLINE) &&
759 !(rdp->disks[disk + rdp->width].flags & AR_DF_ONLINE)) {
760 rdp->flags &= ~AR_F_READY;
761 printf("ar%d: ERROR - array broken\n", rdp->lun);
763 else if (((rdp->disks[disk].flags & AR_DF_ONLINE) &&
765 [disk + rdp->width].flags & AR_DF_ONLINE))||
766 (!(rdp->disks[disk].flags & AR_DF_ONLINE) &&
768 [disk + rdp->width].flags & AR_DF_ONLINE))) {
769 rdp->flags |= AR_F_DEGRADED;
770 if (!(flags & AR_F_DEGRADED))
771 printf("ar%d: WARNING - mirror lost\n", rdp->lun);
776 if ((rdp->disks[disk].flags&AR_DF_PRESENT) && rdp->disks[disk].device) {
777 if (rdp->disks[disk].flags & AR_DF_ONLINE)
778 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_GREEN);
780 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_RED);
784 if (rdp->flags & AR_F_PROMISE_RAID)
785 ar_promise_write_conf(rdp);
786 if (rdp->flags & AR_F_HIGHPOINT_RAID)
787 ar_highpoint_write_conf(rdp);
792 ar_rebuild(struct ar_softc *rdp)
794 int disk, s, count = 0, error = 0;
797 if ((rdp->flags & (AR_F_READY|AR_F_DEGRADED)) != (AR_F_READY|AR_F_DEGRADED))
800 for (disk = 0; disk < rdp->total_disks; disk++) {
801 if (((rdp->disks[disk].flags&(AR_DF_PRESENT|AR_DF_ONLINE|AR_DF_SPARE))==
802 (AR_DF_PRESENT | AR_DF_SPARE)) && rdp->disks[disk].device) {
803 if (AD_SOFTC(rdp->disks[disk])->total_secs <
804 rdp->disks[disk].disk_sectors) {
805 ata_prtdev(rdp->disks[disk].device,
806 "disk capacity too small for this RAID config\n");
808 rdp->disks[disk].flags &= ~AR_DF_SPARE;
809 AD_SOFTC(rdp->disks[disk])->flags &= ~AD_F_RAID_SUBDISK;
813 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_ORANGE);
820 /* setup start conditions */
823 rdp->lock_end = rdp->lock_start + 256;
824 rdp->flags |= AR_F_REBUILDING;
826 buffer = malloc(256 * DEV_BSIZE, M_AR, M_NOWAIT | M_ZERO);
828 /* now go copy entire disk(s) */
829 while (rdp->lock_end < (rdp->total_sectors / rdp->width)) {
830 int size = min(256, (rdp->total_sectors / rdp->width) - rdp->lock_end);
832 for (disk = 0; disk < rdp->width; disk++) {
833 struct ad_softc *adp;
835 if (((rdp->disks[disk].flags & AR_DF_ONLINE) &&
836 (rdp->disks[disk + rdp->width].flags & AR_DF_ONLINE)) ||
837 ((rdp->disks[disk].flags & AR_DF_ONLINE) &&
838 !(rdp->disks[disk + rdp->width].flags & AR_DF_SPARE)) ||
839 ((rdp->disks[disk + rdp->width].flags & AR_DF_ONLINE) &&
840 !(rdp->disks[disk].flags & AR_DF_SPARE)))
843 if (rdp->disks[disk].flags & AR_DF_ONLINE)
844 adp = AD_SOFTC(rdp->disks[disk]);
846 adp = AD_SOFTC(rdp->disks[disk + rdp->width]);
847 if ((error = ar_rw(adp, rdp->lock_start,
848 size * DEV_BSIZE, buffer, AR_READ | AR_WAIT)))
851 if (rdp->disks[disk].flags & AR_DF_ONLINE)
852 adp = AD_SOFTC(rdp->disks[disk + rdp->width]);
854 adp = AD_SOFTC(rdp->disks[disk]);
855 if ((error = ar_rw(adp, rdp->lock_start,
856 size * DEV_BSIZE, buffer, AR_WRITE | AR_WAIT)))
865 rdp->lock_start = rdp->lock_end;
866 rdp->lock_end = rdp->lock_start + size;
871 for (disk = 0; disk < rdp->total_disks; disk++) {
872 if ((rdp->disks[disk].flags&(AR_DF_PRESENT|AR_DF_ONLINE|AR_DF_SPARE))==
873 (AR_DF_PRESENT | AR_DF_SPARE)) {
874 rdp->disks[disk].flags &= ~AR_DF_SPARE;
875 rdp->disks[disk].flags |= (AR_DF_ASSIGNED | AR_DF_ONLINE);
879 rdp->lock_start = 0xffffffff;
880 rdp->lock_end = 0xffffffff;
881 rdp->flags &= ~AR_F_REBUILDING;
883 ar_config_changed(rdp, 1);
888 ar_highpoint_read_conf(struct ad_softc *adp, struct ar_softc **raidp)
890 struct highpoint_raid_conf *info;
891 struct ar_softc *raid = NULL;
892 int array, disk_number = 0, retval = 0;
894 if (!(info = (struct highpoint_raid_conf *)
895 malloc(sizeof(struct highpoint_raid_conf), M_AR, M_NOWAIT | M_ZERO)))
898 if (ar_rw(adp, HPT_LBA, sizeof(struct highpoint_raid_conf),
899 (caddr_t)info, AR_READ | AR_WAIT)) {
901 printf("ar: HighPoint read conf failed\n");
905 /* check if this is a HighPoint RAID struct */
906 if (info->magic != HPT_MAGIC_OK && info->magic != HPT_MAGIC_BAD) {
908 printf("ar: HighPoint check1 failed\n");
912 /* is this disk defined, or an old leftover/spare ? */
913 if (!info->magic_0) {
915 printf("ar: HighPoint check2 failed\n");
919 /* now convert HighPoint config info into our generic form */
920 for (array = 0; array < MAX_ARRAYS; array++) {
923 (struct ar_softc*)malloc(sizeof(struct ar_softc), M_AR,
926 printf("ar%d: failed to allocate raid config storage\n", array);
931 if (raid->flags & AR_F_PROMISE_RAID)
934 switch (info->type) {
936 if ((info->order & (HPT_O_RAID0|HPT_O_OK))==(HPT_O_RAID0|HPT_O_OK))
937 goto highpoint_raid1;
938 if (info->order & (HPT_O_RAID0 | HPT_O_RAID1))
939 goto highpoint_raid01;
940 if (raid->magic_0 && raid->magic_0 != info->magic_0)
942 raid->magic_0 = info->magic_0;
943 raid->flags |= AR_F_RAID0;
944 raid->interleave = 1 << info->stripe_shift;
945 disk_number = info->disk_number;
946 if (!(info->order & HPT_O_OK))
947 info->magic = 0; /* mark bad */
952 if (raid->magic_0 && raid->magic_0 != info->magic_0)
954 raid->magic_0 = info->magic_0;
955 raid->flags |= AR_F_RAID1;
956 disk_number = (info->disk_number > 0);
959 case HPT_T_RAID01_RAID0:
961 if (info->order & HPT_O_RAID0) {
962 if ((raid->magic_0 && raid->magic_0 != info->magic_0) ||
963 (raid->magic_1 && raid->magic_1 != info->magic_1))
965 raid->magic_0 = info->magic_0;
966 raid->magic_1 = info->magic_1;
967 raid->flags |= (AR_F_RAID0 | AR_F_RAID1);
968 raid->interleave = 1 << info->stripe_shift;
969 disk_number = info->disk_number;
972 if (raid->magic_1 && raid->magic_1 != info->magic_1)
974 raid->magic_1 = info->magic_1;
975 raid->flags |= (AR_F_RAID0 | AR_F_RAID1);
976 raid->interleave = 1 << info->stripe_shift;
977 disk_number = info->disk_number + info->array_width;
978 if (!(info->order & HPT_O_RAID1))
979 info->magic = 0; /* mark bad */
984 if (raid->magic_0 && raid->magic_0 != info->magic_0)
986 raid->magic_0 = info->magic_0;
987 raid->flags |= AR_F_SPAN;
988 disk_number = info->disk_number;
992 printf("ar%d: HighPoint unknown RAID type 0x%02x\n",
997 raid->flags |= AR_F_HIGHPOINT_RAID;
998 raid->disks[disk_number].device = adp->device;
999 raid->disks[disk_number].flags = (AR_DF_PRESENT | AR_DF_ASSIGNED);
1001 if (info->magic == HPT_MAGIC_OK) {
1002 raid->disks[disk_number].flags |= AR_DF_ONLINE;
1003 raid->flags |= AR_F_READY;
1004 raid->width = info->array_width;
1007 raid->cylinders = info->total_sectors / (63 * 255);
1008 raid->total_sectors = info->total_sectors;
1009 raid->offset = HPT_LBA + 1;
1010 raid->reserved = HPT_LBA + 1;
1011 raid->lock_start = raid->lock_end = info->rebuild_lba;
1012 raid->disks[disk_number].disk_sectors =
1013 info->total_sectors / info->array_width;
1016 raid->disks[disk_number].flags &= ~ AR_DF_ONLINE;
1018 if ((raid->flags & AR_F_RAID0) && (raid->total_disks < raid->width))
1019 raid->total_disks = raid->width;
1020 if (disk_number >= raid->total_disks)
1021 raid->total_disks = disk_number + 1;
1031 ar_highpoint_write_conf(struct ar_softc *rdp)
1033 struct highpoint_raid_conf *config;
1034 struct timeval timestamp;
1037 microtime(×tamp);
1038 rdp->magic_0 = timestamp.tv_sec + 2;
1039 rdp->magic_1 = timestamp.tv_sec;
1041 for (disk = 0; disk < rdp->total_disks; disk++) {
1042 if (!(config = (struct highpoint_raid_conf *)
1043 malloc(sizeof(struct highpoint_raid_conf),
1044 M_AR, M_NOWAIT | M_ZERO))) {
1045 printf("ar%d: Highpoint write conf failed\n", rdp->lun);
1048 if ((rdp->disks[disk].flags & (AR_DF_PRESENT | AR_DF_ONLINE)) ==
1049 (AR_DF_PRESENT | AR_DF_ONLINE))
1050 config->magic = HPT_MAGIC_OK;
1051 if (rdp->disks[disk].flags & AR_DF_ASSIGNED) {
1052 config->magic_0 = rdp->magic_0;
1053 strcpy(config->name_1, "FreeBSD");
1055 config->disk_number = disk;
1057 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
1059 config->type = HPT_T_RAID0;
1060 strcpy(config->name_2, "RAID 0");
1061 if (rdp->disks[disk].flags & AR_DF_ONLINE)
1062 config->order = HPT_O_OK;
1066 config->type = HPT_T_RAID0; /* bogus but old HPT BIOS need it */
1067 strcpy(config->name_2, "RAID 1");
1068 config->disk_number = (disk < rdp->width) ? disk : disk + 5;
1069 config->order = HPT_O_RAID0 | HPT_O_OK;
1072 case AR_F_RAID0 | AR_F_RAID1:
1073 config->type = HPT_T_RAID01_RAID0;
1074 strcpy(config->name_2, "RAID 0+1");
1075 if (rdp->disks[disk].flags & AR_DF_ONLINE) {
1076 if (disk < rdp->width) {
1077 config->order = (HPT_O_RAID0 | HPT_O_RAID1);
1078 config->magic_0 = rdp->magic_0 - 1;
1081 config->order = HPT_O_RAID1;
1082 config->disk_number -= rdp->width;
1086 config->magic_0 = rdp->magic_0 - 1;
1087 config->magic_1 = rdp->magic_1;
1091 config->type = HPT_T_SPAN;
1092 strcpy(config->name_2, "SPAN");
1096 config->array_width = rdp->width;
1097 config->stripe_shift = (rdp->width > 1) ? (ffs(rdp->interleave)-1) : 0;
1098 config->total_sectors = rdp->total_sectors;
1099 config->rebuild_lba = rdp->lock_start;
1101 if ((rdp->disks[disk].device && rdp->disks[disk].device->driver) &&
1102 !(rdp->disks[disk].device->flags & ATA_D_DETACHING)) {
1104 if (ar_rw(AD_SOFTC(rdp->disks[disk]), HPT_LBA,
1105 sizeof(struct highpoint_raid_conf),
1106 (caddr_t)config, AR_WRITE)) {
1107 printf("ar%d: Highpoint write conf failed\n", rdp->lun);
1116 ar_promise_read_conf(struct ad_softc *adp, struct ar_softc **raidp, int local)
1118 struct promise_raid_conf *info;
1119 struct ar_softc *raid;
1120 u_int32_t magic, cksum, *ckptr;
1121 int array, count, disk, disksum = 0, retval = 0;
1123 if (!(info = (struct promise_raid_conf *)
1124 malloc(sizeof(struct promise_raid_conf), M_AR, M_NOWAIT | M_ZERO)))
1127 if (ar_rw(adp, PR_LBA(adp), sizeof(struct promise_raid_conf),
1128 (caddr_t)info, AR_READ | AR_WAIT)) {
1130 printf("ar: %s read conf failed\n", local ? "FreeBSD" : "Promise");
1134 /* check if this is a Promise RAID struct (or our local one) */
1136 if (strncmp(info->promise_id, ATA_MAGIC, sizeof(ATA_MAGIC))) {
1138 printf("ar: FreeBSD check1 failed\n");
1143 if (strncmp(info->promise_id, PR_MAGIC, sizeof(PR_MAGIC))) {
1145 printf("ar: Promise check1 failed\n");
1150 /* check if the checksum is OK */
1151 for (cksum = 0, ckptr = (int32_t *)info, count = 0; count < 511; count++)
1153 if (cksum != *ckptr) {
1155 printf("ar: %s check2 failed\n", local ? "FreeBSD" : "Promise");
1159 /* now convert Promise config info into our generic form */
1160 if (info->raid.integrity != PR_I_VALID) {
1162 printf("ar: %s check3 failed\n", local ? "FreeBSD" : "Promise");
1166 for (array = 0; array < MAX_ARRAYS; array++) {
1167 if (!raidp[array]) {
1169 (struct ar_softc*)malloc(sizeof(struct ar_softc), M_AR,
1171 if (!raidp[array]) {
1172 printf("ar%d: failed to allocate raid config storage\n", array);
1176 raid = raidp[array];
1177 if (raid->flags & AR_F_HIGHPOINT_RAID)
1180 magic = (adp->device->channel->chiptype >> 16) |
1181 (info->raid.array_number << 16);
1183 if ((raid->flags & AR_F_PROMISE_RAID) && magic != raid->magic_0)
1186 /* update our knowledge about the array config based on generation */
1187 if (!info->raid.generation || info->raid.generation > raid->generation){
1188 raid->generation = info->raid.generation;
1189 raid->flags = AR_F_PROMISE_RAID;
1191 raid->flags |= AR_F_FREEBSD_RAID;
1192 raid->magic_0 = magic;
1194 if ((info->raid.status &
1195 (PR_S_VALID | PR_S_ONLINE | PR_S_INITED | PR_S_READY)) ==
1196 (PR_S_VALID | PR_S_ONLINE | PR_S_INITED | PR_S_READY)) {
1197 raid->flags |= AR_F_READY;
1198 if (info->raid.status & PR_S_DEGRADED)
1199 raid->flags |= AR_F_DEGRADED;
1202 raid->flags &= ~AR_F_READY;
1204 switch (info->raid.type) {
1206 raid->flags |= AR_F_RAID0;
1210 raid->flags |= AR_F_RAID1;
1211 if (info->raid.array_width > 1)
1212 raid->flags |= AR_F_RAID0;
1216 raid->flags |= AR_F_SPAN;
1220 printf("ar%d: %s unknown RAID type 0x%02x\n",
1221 array, local ? "FreeBSD" : "Promise", info->raid.type);
1224 raid->interleave = 1 << info->raid.stripe_shift;
1225 raid->width = info->raid.array_width;
1226 raid->total_disks = info->raid.total_disks;
1227 raid->heads = info->raid.heads + 1;
1228 raid->sectors = info->raid.sectors;
1229 raid->cylinders = info->raid.cylinders + 1;
1230 raid->total_sectors = info->raid.total_sectors;
1232 raid->reserved = 63;
1233 raid->lock_start = raid->lock_end = info->raid.rebuild_lba;
1235 /* convert disk flags to our internal types */
1236 for (disk = 0; disk < info->raid.total_disks; disk++) {
1237 raid->disks[disk].flags = 0;
1238 disksum += info->raid.disk[disk].flags;
1239 if (info->raid.disk[disk].flags & PR_F_ONLINE)
1240 raid->disks[disk].flags |= AR_DF_ONLINE;
1241 if (info->raid.disk[disk].flags & PR_F_ASSIGNED)
1242 raid->disks[disk].flags |= AR_DF_ASSIGNED;
1243 if (info->raid.disk[disk].flags & PR_F_SPARE) {
1244 raid->disks[disk].flags &= ~AR_DF_ONLINE;
1245 raid->disks[disk].flags |= AR_DF_SPARE;
1247 if (info->raid.disk[disk].flags & (PR_F_REDIR | PR_F_DOWN))
1248 raid->disks[disk].flags &= ~AR_DF_ONLINE;
1251 free(raidp[array], M_AR);
1252 raidp[array] = NULL;
1256 if (raid->disks[info->raid.disk_number].flags && adp->device) {
1257 raid->disks[info->raid.disk_number].device = adp->device;
1258 raid->disks[info->raid.disk_number].flags |= AR_DF_PRESENT;
1259 raid->disks[info->raid.disk_number].disk_sectors =
1260 info->raid.total_sectors / info->raid.array_width;
1261 /*info->raid.disk_sectors;*/
1272 ar_promise_write_conf(struct ar_softc *rdp)
1274 struct promise_raid_conf *config;
1275 struct timeval timestamp;
1277 int count, disk, drive;
1278 int local = rdp->flags & AR_F_FREEBSD_RAID;
1281 microtime(×tamp);
1283 for (disk = 0; disk < rdp->total_disks; disk++) {
1284 if (!(config = (struct promise_raid_conf *)
1285 malloc(sizeof(struct promise_raid_conf), M_AR, M_NOWAIT))) {
1286 printf("ar%d: %s write conf failed\n",
1287 rdp->lun, local ? "FreeBSD" : "Promise");
1290 for (count = 0; count < sizeof(struct promise_raid_conf); count++)
1291 *(((u_int8_t *)config) + count) = 255 - (count % 256);
1294 bcopy(ATA_MAGIC, config->promise_id, sizeof(ATA_MAGIC));
1296 bcopy(PR_MAGIC, config->promise_id, sizeof(PR_MAGIC));
1297 config->dummy_0 = 0x00020000;
1298 config->magic_0 = PR_MAGIC0(rdp->disks[disk]) | timestamp.tv_sec;
1299 config->magic_1 = timestamp.tv_sec >> 16;
1300 config->magic_2 = timestamp.tv_sec;
1301 config->raid.integrity = PR_I_VALID;
1303 config->raid.disk_number = disk;
1304 if ((rdp->disks[disk].flags&AR_DF_PRESENT) && rdp->disks[disk].device) {
1305 config->raid.channel = rdp->disks[disk].device->channel->unit;
1306 config->raid.device = (rdp->disks[disk].device->unit != 0);
1307 if (AD_SOFTC(rdp->disks[disk])->dev->si_disk)
1308 config->raid.disk_sectors = PR_LBA(AD_SOFTC(rdp->disks[disk]));
1309 /*config->raid.disk_offset*/
1311 config->raid.magic_0 = config->magic_0;
1312 config->raid.rebuild_lba = rdp->lock_start;
1313 config->raid.generation = rdp->generation;
1315 if (rdp->flags & AR_F_READY) {
1316 config->raid.flags = (PR_F_VALID | PR_F_ASSIGNED | PR_F_ONLINE);
1317 config->raid.status =
1318 (PR_S_VALID | PR_S_ONLINE | PR_S_INITED | PR_S_READY);
1319 if (rdp->flags & AR_F_DEGRADED)
1320 config->raid.status |= PR_S_DEGRADED;
1322 config->raid.status |= PR_S_FUNCTIONAL;
1325 config->raid.status = 0;
1326 config->raid.flags = PR_F_DOWN;
1329 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
1331 config->raid.type = PR_T_RAID0;
1334 config->raid.type = PR_T_RAID1;
1336 case AR_F_RAID0 | AR_F_RAID1:
1337 config->raid.type = PR_T_RAID1;
1340 config->raid.type = PR_T_SPAN;
1344 config->raid.total_disks = rdp->total_disks;
1345 config->raid.stripe_shift = ffs(rdp->interleave) - 1;
1346 config->raid.array_width = rdp->width;
1347 config->raid.array_number = rdp->lun;
1348 config->raid.total_sectors = rdp->total_sectors;
1349 config->raid.cylinders = rdp->cylinders - 1;
1350 config->raid.heads = rdp->heads - 1;
1351 config->raid.sectors = rdp->sectors;
1352 config->raid.magic_1 = (u_int64_t)config->magic_2<<16 | config->magic_1;
1354 bzero(&config->raid.disk, 8 * 12);
1355 for (drive = 0; drive < rdp->total_disks; drive++) {
1356 config->raid.disk[drive].flags = 0;
1357 if (rdp->disks[drive].flags & AR_DF_PRESENT)
1358 config->raid.disk[drive].flags |= PR_F_VALID;
1359 if (rdp->disks[drive].flags & AR_DF_ASSIGNED)
1360 config->raid.disk[drive].flags |= PR_F_ASSIGNED;
1361 if (rdp->disks[drive].flags & AR_DF_ONLINE)
1362 config->raid.disk[drive].flags |= PR_F_ONLINE;
1364 if (rdp->disks[drive].flags & AR_DF_PRESENT)
1365 config->raid.disk[drive].flags = (PR_F_REDIR | PR_F_DOWN);
1366 if (rdp->disks[drive].flags & AR_DF_SPARE)
1367 config->raid.disk[drive].flags |= PR_F_SPARE;
1368 config->raid.disk[drive].dummy_0 = 0x0;
1369 if (rdp->disks[drive].device) {
1370 config->raid.disk[drive].channel =
1371 rdp->disks[drive].device->channel->unit;
1372 config->raid.disk[drive].device =
1373 (rdp->disks[drive].device->unit != 0);
1375 config->raid.disk[drive].magic_0 =
1376 PR_MAGIC0(rdp->disks[drive]) | timestamp.tv_sec;
1379 config->checksum = 0;
1380 for (ckptr = (int32_t *)config, count = 0; count < 511; count++)
1381 config->checksum += *ckptr++;
1382 if (rdp->disks[disk].device && rdp->disks[disk].device->driver &&
1383 !(rdp->disks[disk].device->flags & ATA_D_DETACHING)) {
1384 if (ar_rw(AD_SOFTC(rdp->disks[disk]),
1385 PR_LBA(AD_SOFTC(rdp->disks[disk])),
1386 sizeof(struct promise_raid_conf),
1387 (caddr_t)config, AR_WRITE)) {
1388 printf("ar%d: %s write conf failed\n",
1389 rdp->lun, local ? "FreeBSD" : "Promise");
1398 ar_rw_done(struct buf *bp)
1400 free(bp->b_data, M_AR);
1405 ar_rw(struct ad_softc *adp, u_int32_t lba, int count, caddr_t data, int flags)
1408 int retry = 0, error = 0;
1410 if (!(bp = (struct buf *)malloc(sizeof(struct buf), M_AR, M_NOWAIT|M_ZERO)))
1413 BUF_LOCK(bp, LK_EXCLUSIVE);
1414 bp->b_dev = adp->dev;
1417 bp->b_bcount = count;
1418 if (flags & AR_WAIT)
1419 bp->b_iodone = (void *)wakeup;
1421 bp->b_iodone = ar_rw_done;
1422 bp->b_flags = B_CALL;
1423 if (flags & AR_READ)
1424 bp->b_flags |= B_READ;
1425 if (flags & AR_WRITE)
1426 bp->b_flags |= B_WRITE;
1428 AR_STRATEGY((struct buf *)bp);
1430 if (flags & AR_WAIT) {
1431 while ((retry++ < (15*hz/10)) && (error = !(bp->b_flags & B_DONE)))
1432 error = tsleep(bp, PRIBIO, "arrw", 10);
1433 if (!error && (bp->b_flags & B_ERROR))
1434 error = bp->b_error;
1440 static struct ata_device *
1441 ar_locate_disk(int diskno)
1443 struct ata_channel *ch;
1446 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
1447 if (!(ch = devclass_get_softc(ata_devclass, ctlr)))
1449 if (ch->devices & ATA_ATA_MASTER)
1450 if (ch->device[MASTER].driver &&
1451 ((struct ad_softc *)(ch->device[MASTER].driver))->lun == diskno)
1452 return &ch->device[MASTER];
1453 if (ch->devices & ATA_ATA_SLAVE)
1454 if (ch->device[SLAVE].driver &&
1455 ((struct ad_softc *)(ch->device[SLAVE].driver))->lun == diskno)
1456 return &ch->device[SLAVE];