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 1.5 2003/07/19 21:14:18 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>
52 /* device structures */
53 static d_open_t aropen;
54 static d_strategy_t arstrategy;
55 static struct cdevsw ar_cdevsw = {
57 /* close */ nullclose,
59 /* write */ physwrite,
63 /* strategy */ arstrategy,
71 static struct cdevsw ardisk_cdevsw;
74 static void ar_attach_raid(struct ar_softc *, int);
75 static void ar_done(struct buf *);
76 static void ar_config_changed(struct ar_softc *, int);
77 static int ar_rebuild(struct ar_softc *);
78 static int ar_highpoint_read_conf(struct ad_softc *, struct ar_softc **);
79 static int ar_highpoint_write_conf(struct ar_softc *);
80 static int ar_promise_read_conf(struct ad_softc *, struct ar_softc **, int);
81 static int ar_promise_write_conf(struct ar_softc *);
82 static int ar_rw(struct ad_softc *, u_int32_t, int, caddr_t, int);
83 static struct ata_device *ar_locate_disk(int);
86 static struct ar_softc **ar_table = NULL;
87 static MALLOC_DEFINE(M_AR, "AR driver", "ATA RAID driver");
90 ata_raiddisk_attach(struct ad_softc *adp)
96 for (array = 0; array < MAX_ARRAYS; array++) {
97 if (!(rdp = ar_table[array]) || !rdp->flags)
100 for (disk = 0; disk < rdp->total_disks; disk++) {
101 if ((rdp->disks[disk].flags & AR_DF_ASSIGNED) &&
102 rdp->disks[disk].device == adp->device) {
103 ata_prtdev(rdp->disks[disk].device,
104 "inserted into ar%d disk%d as spare\n",
106 rdp->disks[disk].flags |= (AR_DF_PRESENT | AR_DF_SPARE);
107 AD_SOFTC(rdp->disks[disk])->flags = AD_F_RAID_SUBDISK;
108 ar_config_changed(rdp, 1);
116 ar_table = malloc(sizeof(struct ar_soft *) * MAX_ARRAYS,
117 M_AR, M_NOWAIT | M_ZERO);
119 ata_prtdev(adp->device, "no memory for ATA raid array\n");
123 switch(adp->device->channel->chiptype) {
124 case 0x4d33105a: case 0x4d38105a: case 0x4d30105a:
125 case 0x0d30105a: case 0x4d68105a: case 0x6268105a:
126 case 0x4d69105a: case 0x5275105a: case 0x6269105a:
128 /* test RAID bit in PCI reg XXX */
129 return (ar_promise_read_conf(adp, ar_table, 0));
131 case 0x00041103: case 0x00051103: case 0x00081103:
132 return (ar_highpoint_read_conf(adp, ar_table));
135 return (ar_promise_read_conf(adp, ar_table, 1));
141 ata_raiddisk_detach(struct ad_softc *adp)
143 struct ar_softc *rdp;
147 for (array = 0; array < MAX_ARRAYS; array++) {
148 if (!(rdp = ar_table[array]) || !rdp->flags)
150 for (disk = 0; disk < rdp->total_disks; disk++) {
151 if (rdp->disks[disk].device == adp->device) {
152 ata_prtdev(rdp->disks[disk].device,
153 "deleted from ar%d disk%d\n", array, disk);
154 rdp->disks[disk].flags &= ~(AR_DF_PRESENT | AR_DF_ONLINE);
155 AD_SOFTC(rdp->disks[disk])->flags &= ~AD_F_RAID_SUBDISK;
156 ar_config_changed(rdp, 1);
168 struct ar_softc *rdp;
174 for (array = 0; array < MAX_ARRAYS; array++) {
175 if (!(rdp = ar_table[array]) || !rdp->flags)
177 ar_attach_raid(rdp, 0);
182 ar_attach_raid(struct ar_softc *rdp, int update)
187 ar_config_changed(rdp, update);
188 dev = disk_create(rdp->lun, &rdp->disk, 0, &ar_cdevsw, &ardisk_cdevsw);
190 dev->si_iosize_max = 256 * DEV_BSIZE;
193 printf("ar%d: %lluMB <ATA ", rdp->lun, (unsigned long long)
194 (rdp->total_sectors / ((1024L * 1024L) / DEV_BSIZE)));
195 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
197 printf("RAID0 "); break;
199 printf("RAID1 "); break;
201 printf("SPAN "); break;
202 case (AR_F_RAID0 | AR_F_RAID1):
203 printf("RAID0+1 "); break;
205 printf("unknown 0x%x> ", rdp->flags);
208 printf("array> [%d/%d/%d] status: ",
209 rdp->cylinders, rdp->heads, rdp->sectors);
210 switch (rdp->flags & (AR_F_DEGRADED | AR_F_READY)) {
214 case (AR_F_DEGRADED | AR_F_READY):
221 printf(" subdisks:\n");
222 for (disk = 0; disk < rdp->total_disks; disk++) {
223 if (rdp->disks[disk].flags & AR_DF_PRESENT) {
224 if (rdp->disks[disk].flags & AR_DF_ONLINE)
225 printf(" %d READY ", disk);
226 else if (rdp->disks[disk].flags & AR_DF_SPARE)
227 printf(" %d SPARE ", disk);
229 printf(" %d FREE ", disk);
230 ad_print(AD_SOFTC(rdp->disks[disk]));
232 ata_enclosure_print(AD_SOFTC(rdp->disks[disk])->device);
234 else if (rdp->disks[disk].flags & AR_DF_ASSIGNED)
235 printf(" %d DOWN\n", disk);
237 printf(" %d INVALID no RAID config info on this disk\n", disk);
242 ata_raid_create(struct raid_setup *setup)
244 struct ata_device *atadev;
245 struct ar_softc *rdp;
247 int ctlr = 0, disk_size = 0, total_disks = 0;
250 ar_table = malloc(sizeof(struct ar_soft *) * MAX_ARRAYS,
251 M_AR, M_NOWAIT | M_ZERO);
253 printf("ar: no memory for ATA raid array\n");
256 for (array = 0; array < MAX_ARRAYS; array++) {
257 if (!ar_table[array])
260 if (array >= MAX_ARRAYS)
263 if (!(rdp = (struct ar_softc*)malloc(sizeof(struct ar_softc), M_AR,
264 M_NOWAIT | M_ZERO))) {
265 printf("ar%d: failed to allocate raid config storage\n", array);
269 for (disk = 0; disk < setup->total_disks; disk++) {
270 if ((atadev = ar_locate_disk(setup->disks[disk]))) {
271 rdp->disks[disk].device = atadev;
272 if (AD_SOFTC(rdp->disks[disk])->flags & AD_F_RAID_SUBDISK) {
273 setup->disks[disk] = -1;
278 switch (rdp->disks[disk].device->channel->chiptype & 0xffff) {
280 ctlr |= AR_F_HIGHPOINT_RAID;
281 rdp->disks[disk].disk_sectors =
282 AD_SOFTC(rdp->disks[disk])->total_secs;
286 ctlr |= AR_F_FREEBSD_RAID;
290 ctlr |= AR_F_PROMISE_RAID;
291 rdp->disks[disk].disk_sectors =
292 PR_LBA(AD_SOFTC(rdp->disks[disk]));
295 if ((rdp->flags & (AR_F_PROMISE_RAID|AR_F_HIGHPOINT_RAID)) &&
296 (rdp->flags & (AR_F_PROMISE_RAID|AR_F_HIGHPOINT_RAID)) !=
297 (ctlr & (AR_F_PROMISE_RAID|AR_F_HIGHPOINT_RAID))) {
305 disk_size = min(rdp->disks[disk].disk_sectors, disk_size);
307 disk_size = rdp->disks[disk].disk_sectors;
308 rdp->disks[disk].flags =
309 (AR_DF_PRESENT | AR_DF_ASSIGNED | AR_DF_ONLINE);
314 setup->disks[disk] = -1;
324 switch (setup->type) {
326 rdp->flags |= AR_F_RAID0;
329 rdp->flags |= AR_F_RAID1;
330 if (total_disks != 2) {
336 rdp->flags |= (AR_F_RAID0 | AR_F_RAID1);
337 if (total_disks % 2 != 0) {
343 rdp->flags |= AR_F_SPAN;
347 for (disk = 0; disk < total_disks; disk++)
348 AD_SOFTC(rdp->disks[disk])->flags = AD_F_RAID_SUBDISK;
351 if (rdp->flags & AR_F_RAID0) {
354 while (setup->interleave >>= 1)
356 if (rdp->flags & AR_F_PROMISE_RAID)
357 rdp->interleave = min(max(2, 1 << bit), 2048);
358 if (rdp->flags & AR_F_HIGHPOINT_RAID)
359 rdp->interleave = min(max(32, 1 << bit), 128);
361 rdp->total_disks = total_disks;
362 rdp->width = total_disks / ((rdp->flags & AR_F_RAID1) ? 2 : 1);
363 rdp->total_sectors = disk_size * rdp->width;
366 rdp->cylinders = rdp->total_sectors / (255 * 63);
367 if (rdp->flags & AR_F_PROMISE_RAID) {
371 if (rdp->flags & AR_F_HIGHPOINT_RAID) {
372 rdp->offset = HPT_LBA + 1;
373 rdp->reserved = HPT_LBA + 1;
375 rdp->lock_start = rdp->lock_end = 0xffffffff;
376 rdp->flags |= AR_F_READY;
378 ar_table[array] = rdp;
379 ar_attach_raid(rdp, 1);
385 ata_raid_delete(int array)
387 struct ar_softc *rdp;
391 printf("ar: no memory for ATA raid array\n");
394 if (!(rdp = ar_table[array]))
397 rdp->flags &= ~AR_F_READY;
398 for (disk = 0; disk < rdp->total_disks; disk++) {
399 if ((rdp->disks[disk].flags&AR_DF_PRESENT) && rdp->disks[disk].device) {
400 AD_SOFTC(rdp->disks[disk])->flags &= ~AD_F_RAID_SUBDISK;
401 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_GREEN);
402 rdp->disks[disk].flags = 0;
405 if (rdp->flags & AR_F_PROMISE_RAID)
406 ar_promise_write_conf(rdp);
408 ar_highpoint_write_conf(rdp);
409 disk_invalidate(&rdp->disk);
410 disk_destroy(rdp->dev);
412 ar_table[array] = NULL;
417 ata_raid_status(int array, struct raid_status *status)
419 struct ar_softc *rdp;
422 if (!ar_table || !(rdp = ar_table[array]))
425 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
427 status->type = AR_RAID0;
430 status->type = AR_RAID1;
432 case AR_F_RAID0 | AR_F_RAID1:
433 status->type = AR_RAID0 | AR_RAID1;
436 status->type = AR_SPAN;
439 status->total_disks = rdp->total_disks;
440 for (i = 0; i < rdp->total_disks; i++ ) {
441 if ((rdp->disks[i].flags & AR_DF_PRESENT) && rdp->disks[i].device)
442 status->disks[i] = AD_SOFTC(rdp->disks[i])->lun;
444 status->disks[i] = -1;
446 status->interleave = rdp->interleave;
448 if (rdp->flags & AR_F_READY)
449 status->status |= AR_READY;
450 if (rdp->flags & AR_F_DEGRADED)
451 status->status |= AR_DEGRADED;
452 if (rdp->flags & AR_F_REBUILDING) {
453 status->status |= AR_REBUILDING;
454 status->progress = 100*rdp->lock_start/(rdp->total_sectors/rdp->width);
460 ata_raid_rebuild(int array)
462 struct ar_softc *rdp;
464 if (!ar_table || !(rdp = ar_table[array]))
466 if (rdp->flags & AR_F_REBUILDING)
468 /* create process here XXX SOS */
469 return ar_rebuild(rdp);
473 aropen(dev_t dev, int flags, int fmt, struct thread *td)
475 struct ar_softc *rdp = dev->si_drv1;
476 struct disklabel *dl;
478 dl = &rdp->disk.d_label;
479 bzero(dl, sizeof *dl);
480 dl->d_secsize = DEV_BSIZE;
481 dl->d_nsectors = rdp->sectors;
482 dl->d_ntracks = rdp->heads;
483 dl->d_ncylinders = rdp->cylinders;
484 dl->d_secpercyl = rdp->sectors * rdp->heads;
485 dl->d_secperunit = rdp->total_sectors;
490 arstrategy(struct buf *bp)
492 struct ar_softc *rdp = bp->b_dev->si_drv1;
493 int blkno, count, chunk, lba, lbs, tmplba;
494 int drv = 0, change = 0;
497 if (!(rdp->flags & AR_F_READY)) {
498 bp->b_flags |= B_ERROR;
504 bp->b_resid = bp->b_bcount;
505 blkno = bp->b_pblkno;
507 for (count = howmany(bp->b_bcount, DEV_BSIZE); count > 0;
508 count -= chunk, blkno += chunk, data += (chunk * DEV_BSIZE)) {
509 struct ar_buf *buf1, *buf2;
511 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
514 while (lba >= AD_SOFTC(rdp->disks[drv])->total_secs-rdp->reserved)
515 lba -= AD_SOFTC(rdp->disks[drv++])->total_secs-rdp->reserved;
516 chunk = min(AD_SOFTC(rdp->disks[drv])->total_secs-rdp->reserved-lba,
521 case AR_F_RAID0 | AR_F_RAID1:
522 tmplba = blkno / rdp->interleave;
523 chunk = blkno % rdp->interleave;
524 if (tmplba == rdp->total_sectors / rdp->interleave) {
525 lbs = (rdp->total_sectors-(tmplba*rdp->interleave))/rdp->width;
527 lba = ((tmplba/rdp->width)*rdp->interleave) + chunk%lbs;
528 chunk = min(count, lbs);
531 drv = tmplba % rdp->width;
532 lba = ((tmplba / rdp->width) * rdp->interleave) + chunk;
533 chunk = min(count, rdp->interleave - chunk);
544 printf("ar%d: unknown array type in arstrategy\n", rdp->lun);
545 bp->b_flags |= B_ERROR;
551 buf1 = malloc(sizeof(struct ar_buf), M_AR, M_NOWAIT | M_ZERO);
552 BUF_LOCKINIT(&buf1->bp);
553 BUF_LOCK(&buf1->bp, LK_EXCLUSIVE);
554 buf1->bp.b_pblkno = lba;
555 if ((buf1->drive = drv) > 0)
556 buf1->bp.b_pblkno += rdp->offset;
557 buf1->bp.b_caller1 = (void *)rdp;
558 buf1->bp.b_bcount = chunk * DEV_BSIZE;
559 buf1->bp.b_data = data;
560 buf1->bp.b_flags = bp->b_flags | B_CALL;
561 buf1->bp.b_iodone = ar_done;
564 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
567 if ((rdp->disks[buf1->drive].flags &
568 (AR_DF_PRESENT|AR_DF_ONLINE))==(AR_DF_PRESENT|AR_DF_ONLINE) &&
569 !AD_SOFTC(rdp->disks[buf1->drive])->dev->si_disk) {
570 rdp->disks[buf1->drive].flags &= ~AR_DF_ONLINE;
571 ar_config_changed(rdp, 1);
573 bp->b_flags |= B_ERROR;
578 buf1->bp.b_dev = AD_SOFTC(rdp->disks[buf1->drive])->dev;
579 AR_STRATEGY((struct buf *)buf1);
583 case AR_F_RAID0 | AR_F_RAID1:
584 if ((rdp->flags & AR_F_REBUILDING) && !(bp->b_flags & B_READ)) {
585 if ((bp->b_pblkno >= rdp->lock_start &&
586 bp->b_pblkno < rdp->lock_end) ||
587 ((bp->b_pblkno + chunk) > rdp->lock_start &&
588 (bp->b_pblkno + chunk) <= rdp->lock_end)) {
589 tsleep(rdp, 0, "arwait", 0);
592 if ((rdp->disks[buf1->drive].flags &
593 (AR_DF_PRESENT|AR_DF_ONLINE))==(AR_DF_PRESENT|AR_DF_ONLINE) &&
594 !AD_SOFTC(rdp->disks[buf1->drive])->dev->si_disk) {
595 rdp->disks[buf1->drive].flags &= ~AR_DF_ONLINE;
598 if ((rdp->disks[buf1->drive + rdp->width].flags &
599 (AR_DF_PRESENT|AR_DF_ONLINE))==(AR_DF_PRESENT|AR_DF_ONLINE) &&
600 !AD_SOFTC(rdp->disks[buf1->drive + rdp->width])->dev->si_disk) {
601 rdp->disks[buf1->drive + rdp->width].flags &= ~AR_DF_ONLINE;
605 ar_config_changed(rdp, 1);
607 if (!(rdp->flags & AR_F_READY)) {
609 bp->b_flags |= B_ERROR;
614 if (bp->b_flags & B_READ) {
615 if ((buf1->bp.b_pblkno <
616 (rdp->disks[buf1->drive].last_lba - AR_PROXIMITY) ||
618 (rdp->disks[buf1->drive].last_lba + AR_PROXIMITY) ||
619 !(rdp->disks[buf1->drive].flags & AR_DF_ONLINE)) &&
620 (rdp->disks[buf1->drive+rdp->width].flags & AR_DF_ONLINE))
621 buf1->drive = buf1->drive + rdp->width;
624 if ((rdp->disks[buf1->drive+rdp->width].flags & AR_DF_ONLINE) ||
625 ((rdp->flags & AR_F_REBUILDING) &&
626 (rdp->disks[buf1->drive+rdp->width].flags & AR_DF_SPARE) &&
627 buf1->bp.b_pblkno < rdp->lock_start)) {
628 if ((rdp->disks[buf1->drive].flags & AR_DF_ONLINE) ||
629 ((rdp->flags & AR_F_REBUILDING) &&
630 (rdp->disks[buf1->drive].flags & AR_DF_SPARE) &&
631 buf1->bp.b_pblkno < rdp->lock_start)) {
632 buf2 = malloc(sizeof(struct ar_buf), M_AR, M_NOWAIT);
633 bcopy(buf1, buf2, sizeof(struct ar_buf));
634 BUF_LOCKINIT(&buf2->bp);
635 BUF_LOCK(&buf2->bp, LK_EXCLUSIVE);
638 buf2->drive = buf1->drive + rdp->width;
639 buf2->bp.b_dev = AD_SOFTC(rdp->disks[buf2->drive])->dev;
640 AR_STRATEGY((struct buf *)buf2);
641 rdp->disks[buf2->drive].last_lba =
642 buf2->bp.b_pblkno + chunk;
645 buf1->drive = buf1->drive + rdp->width;
648 buf1->bp.b_dev = AD_SOFTC(rdp->disks[buf1->drive])->dev;
649 AR_STRATEGY((struct buf *)buf1);
650 rdp->disks[buf1->drive].last_lba = buf1->bp.b_pblkno + chunk;
654 printf("ar%d: unknown array type in arstrategy\n", rdp->lun);
660 ar_done(struct buf *bp)
662 struct ar_softc *rdp = (struct ar_softc *)bp->b_caller1;
663 struct ar_buf *buf = (struct ar_buf *)bp;
665 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
668 if (buf->bp.b_flags & B_ERROR) {
669 rdp->disks[buf->drive].flags &= ~AR_DF_ONLINE;
670 ar_config_changed(rdp, 1);
671 buf->org->b_flags |= B_ERROR;
672 buf->org->b_error = EIO;
676 buf->org->b_resid -= buf->bp.b_bcount;
677 if (buf->org->b_resid == 0)
683 case AR_F_RAID0 | AR_F_RAID1:
684 if (buf->bp.b_flags & B_ERROR) {
685 rdp->disks[buf->drive].flags &= ~AR_DF_ONLINE;
686 ar_config_changed(rdp, 1);
687 if (rdp->flags & AR_F_READY) {
688 if (buf->bp.b_flags & B_READ) {
689 if (buf->drive < rdp->width)
690 buf->drive = buf->drive + rdp->width;
692 buf->drive = buf->drive - rdp->width;
693 buf->bp.b_dev = AD_SOFTC(rdp->disks[buf->drive])->dev;
694 buf->bp.b_flags = buf->org->b_flags | B_CALL;
696 AR_STRATEGY((struct buf *)buf);
700 if (buf->flags & AB_F_DONE) {
701 buf->org->b_resid -= buf->bp.b_bcount;
702 if (buf->org->b_resid == 0)
706 buf->mirror->flags |= AB_F_DONE;
710 buf->org->b_flags |= B_ERROR;
711 buf->org->b_error = EIO;
716 if (!(buf->bp.b_flags & B_READ)) {
717 if (buf->mirror && !(buf->flags & AB_F_DONE)){
718 buf->mirror->flags |= AB_F_DONE;
722 buf->org->b_resid -= buf->bp.b_bcount;
723 if (buf->org->b_resid == 0)
729 printf("ar%d: unknown array type in ar_done\n", rdp->lun);
735 ar_config_changed(struct ar_softc *rdp, int writeback)
740 rdp->flags |= AR_F_READY;
741 rdp->flags &= ~AR_F_DEGRADED;
743 for (disk = 0; disk < rdp->total_disks; disk++)
744 if (!(rdp->disks[disk].flags & AR_DF_PRESENT))
745 rdp->disks[disk].flags &= ~AR_DF_ONLINE;
747 for (disk = 0; disk < rdp->total_disks; disk++) {
748 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
751 if (!(rdp->disks[disk].flags & AR_DF_ONLINE)) {
752 rdp->flags &= ~AR_F_READY;
753 printf("ar%d: ERROR - array broken\n", rdp->lun);
758 case AR_F_RAID0 | AR_F_RAID1:
759 if (disk < rdp->width) {
760 if (!(rdp->disks[disk].flags & AR_DF_ONLINE) &&
761 !(rdp->disks[disk + rdp->width].flags & AR_DF_ONLINE)) {
762 rdp->flags &= ~AR_F_READY;
763 printf("ar%d: ERROR - array broken\n", rdp->lun);
765 else if (((rdp->disks[disk].flags & AR_DF_ONLINE) &&
767 [disk + rdp->width].flags & AR_DF_ONLINE))||
768 (!(rdp->disks[disk].flags & AR_DF_ONLINE) &&
770 [disk + rdp->width].flags & AR_DF_ONLINE))) {
771 rdp->flags |= AR_F_DEGRADED;
772 if (!(flags & AR_F_DEGRADED))
773 printf("ar%d: WARNING - mirror lost\n", rdp->lun);
778 if ((rdp->disks[disk].flags&AR_DF_PRESENT) && rdp->disks[disk].device) {
779 if (rdp->disks[disk].flags & AR_DF_ONLINE)
780 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_GREEN);
782 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_RED);
786 if (rdp->flags & AR_F_PROMISE_RAID)
787 ar_promise_write_conf(rdp);
788 if (rdp->flags & AR_F_HIGHPOINT_RAID)
789 ar_highpoint_write_conf(rdp);
794 ar_rebuild(struct ar_softc *rdp)
796 int disk, s, count = 0, error = 0;
799 if ((rdp->flags & (AR_F_READY|AR_F_DEGRADED)) != (AR_F_READY|AR_F_DEGRADED))
802 for (disk = 0; disk < rdp->total_disks; disk++) {
803 if (((rdp->disks[disk].flags&(AR_DF_PRESENT|AR_DF_ONLINE|AR_DF_SPARE))==
804 (AR_DF_PRESENT | AR_DF_SPARE)) && rdp->disks[disk].device) {
805 if (AD_SOFTC(rdp->disks[disk])->total_secs <
806 rdp->disks[disk].disk_sectors) {
807 ata_prtdev(rdp->disks[disk].device,
808 "disk capacity too small for this RAID config\n");
810 rdp->disks[disk].flags &= ~AR_DF_SPARE;
811 AD_SOFTC(rdp->disks[disk])->flags &= ~AD_F_RAID_SUBDISK;
815 ata_enclosure_leds(rdp->disks[disk].device, ATA_LED_ORANGE);
822 /* setup start conditions */
825 rdp->lock_end = rdp->lock_start + 256;
826 rdp->flags |= AR_F_REBUILDING;
828 buffer = malloc(256 * DEV_BSIZE, M_AR, M_NOWAIT | M_ZERO);
830 /* now go copy entire disk(s) */
831 while (rdp->lock_end < (rdp->total_sectors / rdp->width)) {
832 int size = min(256, (rdp->total_sectors / rdp->width) - rdp->lock_end);
834 for (disk = 0; disk < rdp->width; disk++) {
835 struct ad_softc *adp;
837 if (((rdp->disks[disk].flags & AR_DF_ONLINE) &&
838 (rdp->disks[disk + rdp->width].flags & AR_DF_ONLINE)) ||
839 ((rdp->disks[disk].flags & AR_DF_ONLINE) &&
840 !(rdp->disks[disk + rdp->width].flags & AR_DF_SPARE)) ||
841 ((rdp->disks[disk + rdp->width].flags & AR_DF_ONLINE) &&
842 !(rdp->disks[disk].flags & AR_DF_SPARE)))
845 if (rdp->disks[disk].flags & AR_DF_ONLINE)
846 adp = AD_SOFTC(rdp->disks[disk]);
848 adp = AD_SOFTC(rdp->disks[disk + rdp->width]);
849 if ((error = ar_rw(adp, rdp->lock_start,
850 size * DEV_BSIZE, buffer, AR_READ | AR_WAIT)))
853 if (rdp->disks[disk].flags & AR_DF_ONLINE)
854 adp = AD_SOFTC(rdp->disks[disk + rdp->width]);
856 adp = AD_SOFTC(rdp->disks[disk]);
857 if ((error = ar_rw(adp, rdp->lock_start,
858 size * DEV_BSIZE, buffer, AR_WRITE | AR_WAIT)))
867 rdp->lock_start = rdp->lock_end;
868 rdp->lock_end = rdp->lock_start + size;
873 for (disk = 0; disk < rdp->total_disks; disk++) {
874 if ((rdp->disks[disk].flags&(AR_DF_PRESENT|AR_DF_ONLINE|AR_DF_SPARE))==
875 (AR_DF_PRESENT | AR_DF_SPARE)) {
876 rdp->disks[disk].flags &= ~AR_DF_SPARE;
877 rdp->disks[disk].flags |= (AR_DF_ASSIGNED | AR_DF_ONLINE);
881 rdp->lock_start = 0xffffffff;
882 rdp->lock_end = 0xffffffff;
883 rdp->flags &= ~AR_F_REBUILDING;
885 ar_config_changed(rdp, 1);
890 ar_highpoint_read_conf(struct ad_softc *adp, struct ar_softc **raidp)
892 struct highpoint_raid_conf *info;
893 struct ar_softc *raid = NULL;
894 int array, disk_number = 0, retval = 0;
896 if (!(info = (struct highpoint_raid_conf *)
897 malloc(sizeof(struct highpoint_raid_conf), M_AR, M_NOWAIT | M_ZERO)))
900 if (ar_rw(adp, HPT_LBA, sizeof(struct highpoint_raid_conf),
901 (caddr_t)info, AR_READ | AR_WAIT)) {
903 printf("ar: HighPoint read conf failed\n");
907 /* check if this is a HighPoint RAID struct */
908 if (info->magic != HPT_MAGIC_OK && info->magic != HPT_MAGIC_BAD) {
910 printf("ar: HighPoint check1 failed\n");
914 /* is this disk defined, or an old leftover/spare ? */
915 if (!info->magic_0) {
917 printf("ar: HighPoint check2 failed\n");
921 /* now convert HighPoint config info into our generic form */
922 for (array = 0; array < MAX_ARRAYS; array++) {
925 (struct ar_softc*)malloc(sizeof(struct ar_softc), M_AR,
928 printf("ar%d: failed to allocate raid config storage\n", array);
933 if (raid->flags & AR_F_PROMISE_RAID)
936 switch (info->type) {
938 if ((info->order & (HPT_O_RAID0|HPT_O_OK))==(HPT_O_RAID0|HPT_O_OK))
939 goto highpoint_raid1;
940 if (info->order & (HPT_O_RAID0 | HPT_O_RAID1))
941 goto highpoint_raid01;
942 if (raid->magic_0 && raid->magic_0 != info->magic_0)
944 raid->magic_0 = info->magic_0;
945 raid->flags |= AR_F_RAID0;
946 raid->interleave = 1 << info->stripe_shift;
947 disk_number = info->disk_number;
948 if (!(info->order & HPT_O_OK))
949 info->magic = 0; /* mark bad */
954 if (raid->magic_0 && raid->magic_0 != info->magic_0)
956 raid->magic_0 = info->magic_0;
957 raid->flags |= AR_F_RAID1;
958 disk_number = (info->disk_number > 0);
961 case HPT_T_RAID01_RAID0:
963 if (info->order & HPT_O_RAID0) {
964 if ((raid->magic_0 && raid->magic_0 != info->magic_0) ||
965 (raid->magic_1 && raid->magic_1 != info->magic_1))
967 raid->magic_0 = info->magic_0;
968 raid->magic_1 = info->magic_1;
969 raid->flags |= (AR_F_RAID0 | AR_F_RAID1);
970 raid->interleave = 1 << info->stripe_shift;
971 disk_number = info->disk_number;
974 if (raid->magic_1 && raid->magic_1 != info->magic_1)
976 raid->magic_1 = info->magic_1;
977 raid->flags |= (AR_F_RAID0 | AR_F_RAID1);
978 raid->interleave = 1 << info->stripe_shift;
979 disk_number = info->disk_number + info->array_width;
980 if (!(info->order & HPT_O_RAID1))
981 info->magic = 0; /* mark bad */
986 if (raid->magic_0 && raid->magic_0 != info->magic_0)
988 raid->magic_0 = info->magic_0;
989 raid->flags |= AR_F_SPAN;
990 disk_number = info->disk_number;
994 printf("ar%d: HighPoint unknown RAID type 0x%02x\n",
999 raid->flags |= AR_F_HIGHPOINT_RAID;
1000 raid->disks[disk_number].device = adp->device;
1001 raid->disks[disk_number].flags = (AR_DF_PRESENT | AR_DF_ASSIGNED);
1003 if (info->magic == HPT_MAGIC_OK) {
1004 raid->disks[disk_number].flags |= AR_DF_ONLINE;
1005 raid->flags |= AR_F_READY;
1006 raid->width = info->array_width;
1009 raid->cylinders = info->total_sectors / (63 * 255);
1010 raid->total_sectors = info->total_sectors;
1011 raid->offset = HPT_LBA + 1;
1012 raid->reserved = HPT_LBA + 1;
1013 raid->lock_start = raid->lock_end = info->rebuild_lba;
1014 raid->disks[disk_number].disk_sectors =
1015 info->total_sectors / info->array_width;
1018 raid->disks[disk_number].flags &= ~ AR_DF_ONLINE;
1020 if ((raid->flags & AR_F_RAID0) && (raid->total_disks < raid->width))
1021 raid->total_disks = raid->width;
1022 if (disk_number >= raid->total_disks)
1023 raid->total_disks = disk_number + 1;
1033 ar_highpoint_write_conf(struct ar_softc *rdp)
1035 struct highpoint_raid_conf *config;
1036 struct timeval timestamp;
1039 microtime(×tamp);
1040 rdp->magic_0 = timestamp.tv_sec + 2;
1041 rdp->magic_1 = timestamp.tv_sec;
1043 for (disk = 0; disk < rdp->total_disks; disk++) {
1044 if (!(config = (struct highpoint_raid_conf *)
1045 malloc(sizeof(struct highpoint_raid_conf),
1046 M_AR, M_NOWAIT | M_ZERO))) {
1047 printf("ar%d: Highpoint write conf failed\n", rdp->lun);
1050 if ((rdp->disks[disk].flags & (AR_DF_PRESENT | AR_DF_ONLINE)) ==
1051 (AR_DF_PRESENT | AR_DF_ONLINE))
1052 config->magic = HPT_MAGIC_OK;
1053 if (rdp->disks[disk].flags & AR_DF_ASSIGNED) {
1054 config->magic_0 = rdp->magic_0;
1055 strcpy(config->name_1, "FreeBSD");
1057 config->disk_number = disk;
1059 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
1061 config->type = HPT_T_RAID0;
1062 strcpy(config->name_2, "RAID 0");
1063 if (rdp->disks[disk].flags & AR_DF_ONLINE)
1064 config->order = HPT_O_OK;
1068 config->type = HPT_T_RAID0; /* bogus but old HPT BIOS need it */
1069 strcpy(config->name_2, "RAID 1");
1070 config->disk_number = (disk < rdp->width) ? disk : disk + 5;
1071 config->order = HPT_O_RAID0 | HPT_O_OK;
1074 case AR_F_RAID0 | AR_F_RAID1:
1075 config->type = HPT_T_RAID01_RAID0;
1076 strcpy(config->name_2, "RAID 0+1");
1077 if (rdp->disks[disk].flags & AR_DF_ONLINE) {
1078 if (disk < rdp->width) {
1079 config->order = (HPT_O_RAID0 | HPT_O_RAID1);
1080 config->magic_0 = rdp->magic_0 - 1;
1083 config->order = HPT_O_RAID1;
1084 config->disk_number -= rdp->width;
1088 config->magic_0 = rdp->magic_0 - 1;
1089 config->magic_1 = rdp->magic_1;
1093 config->type = HPT_T_SPAN;
1094 strcpy(config->name_2, "SPAN");
1098 config->array_width = rdp->width;
1099 config->stripe_shift = (rdp->width > 1) ? (ffs(rdp->interleave)-1) : 0;
1100 config->total_sectors = rdp->total_sectors;
1101 config->rebuild_lba = rdp->lock_start;
1103 if ((rdp->disks[disk].device && rdp->disks[disk].device->driver) &&
1104 !(rdp->disks[disk].device->flags & ATA_D_DETACHING)) {
1106 if (ar_rw(AD_SOFTC(rdp->disks[disk]), HPT_LBA,
1107 sizeof(struct highpoint_raid_conf),
1108 (caddr_t)config, AR_WRITE)) {
1109 printf("ar%d: Highpoint write conf failed\n", rdp->lun);
1118 ar_promise_read_conf(struct ad_softc *adp, struct ar_softc **raidp, int local)
1120 struct promise_raid_conf *info;
1121 struct ar_softc *raid;
1122 u_int32_t magic, cksum, *ckptr;
1123 int array, count, disk, disksum = 0, retval = 0;
1125 if (!(info = (struct promise_raid_conf *)
1126 malloc(sizeof(struct promise_raid_conf), M_AR, M_NOWAIT | M_ZERO)))
1129 if (ar_rw(adp, PR_LBA(adp), sizeof(struct promise_raid_conf),
1130 (caddr_t)info, AR_READ | AR_WAIT)) {
1132 printf("ar: %s read conf failed\n", local ? "FreeBSD" : "Promise");
1136 /* check if this is a Promise RAID struct (or our local one) */
1138 if (strncmp(info->promise_id, ATA_MAGIC, sizeof(ATA_MAGIC))) {
1140 printf("ar: FreeBSD check1 failed\n");
1145 if (strncmp(info->promise_id, PR_MAGIC, sizeof(PR_MAGIC))) {
1147 printf("ar: Promise check1 failed\n");
1152 /* check if the checksum is OK */
1153 for (cksum = 0, ckptr = (int32_t *)info, count = 0; count < 511; count++)
1155 if (cksum != *ckptr) {
1157 printf("ar: %s check2 failed\n", local ? "FreeBSD" : "Promise");
1161 /* now convert Promise config info into our generic form */
1162 if (info->raid.integrity != PR_I_VALID) {
1164 printf("ar: %s check3 failed\n", local ? "FreeBSD" : "Promise");
1168 for (array = 0; array < MAX_ARRAYS; array++) {
1169 if (!raidp[array]) {
1171 (struct ar_softc*)malloc(sizeof(struct ar_softc), M_AR,
1173 if (!raidp[array]) {
1174 printf("ar%d: failed to allocate raid config storage\n", array);
1178 raid = raidp[array];
1179 if (raid->flags & AR_F_HIGHPOINT_RAID)
1182 magic = (adp->device->channel->chiptype >> 16) |
1183 (info->raid.array_number << 16);
1185 if ((raid->flags & AR_F_PROMISE_RAID) && magic != raid->magic_0)
1188 /* update our knowledge about the array config based on generation */
1189 if (!info->raid.generation || info->raid.generation > raid->generation){
1190 raid->generation = info->raid.generation;
1191 raid->flags = AR_F_PROMISE_RAID;
1193 raid->flags |= AR_F_FREEBSD_RAID;
1194 raid->magic_0 = magic;
1196 if ((info->raid.status &
1197 (PR_S_VALID | PR_S_ONLINE | PR_S_INITED | PR_S_READY)) ==
1198 (PR_S_VALID | PR_S_ONLINE | PR_S_INITED | PR_S_READY)) {
1199 raid->flags |= AR_F_READY;
1200 if (info->raid.status & PR_S_DEGRADED)
1201 raid->flags |= AR_F_DEGRADED;
1204 raid->flags &= ~AR_F_READY;
1206 switch (info->raid.type) {
1208 raid->flags |= AR_F_RAID0;
1212 raid->flags |= AR_F_RAID1;
1213 if (info->raid.array_width > 1)
1214 raid->flags |= AR_F_RAID0;
1218 raid->flags |= AR_F_SPAN;
1222 printf("ar%d: %s unknown RAID type 0x%02x\n",
1223 array, local ? "FreeBSD" : "Promise", info->raid.type);
1226 raid->interleave = 1 << info->raid.stripe_shift;
1227 raid->width = info->raid.array_width;
1228 raid->total_disks = info->raid.total_disks;
1229 raid->heads = info->raid.heads + 1;
1230 raid->sectors = info->raid.sectors;
1231 raid->cylinders = info->raid.cylinders + 1;
1232 raid->total_sectors = info->raid.total_sectors;
1234 raid->reserved = 63;
1235 raid->lock_start = raid->lock_end = info->raid.rebuild_lba;
1237 /* convert disk flags to our internal types */
1238 for (disk = 0; disk < info->raid.total_disks; disk++) {
1239 raid->disks[disk].flags = 0;
1240 disksum += info->raid.disk[disk].flags;
1241 if (info->raid.disk[disk].flags & PR_F_ONLINE)
1242 raid->disks[disk].flags |= AR_DF_ONLINE;
1243 if (info->raid.disk[disk].flags & PR_F_ASSIGNED)
1244 raid->disks[disk].flags |= AR_DF_ASSIGNED;
1245 if (info->raid.disk[disk].flags & PR_F_SPARE) {
1246 raid->disks[disk].flags &= ~AR_DF_ONLINE;
1247 raid->disks[disk].flags |= AR_DF_SPARE;
1249 if (info->raid.disk[disk].flags & (PR_F_REDIR | PR_F_DOWN))
1250 raid->disks[disk].flags &= ~AR_DF_ONLINE;
1253 free(raidp[array], M_AR);
1254 raidp[array] = NULL;
1258 if (raid->disks[info->raid.disk_number].flags && adp->device) {
1259 raid->disks[info->raid.disk_number].device = adp->device;
1260 raid->disks[info->raid.disk_number].flags |= AR_DF_PRESENT;
1261 raid->disks[info->raid.disk_number].disk_sectors =
1262 info->raid.total_sectors / info->raid.array_width;
1263 /*info->raid.disk_sectors;*/
1274 ar_promise_write_conf(struct ar_softc *rdp)
1276 struct promise_raid_conf *config;
1277 struct timeval timestamp;
1279 int count, disk, drive;
1280 int local = rdp->flags & AR_F_FREEBSD_RAID;
1283 microtime(×tamp);
1285 for (disk = 0; disk < rdp->total_disks; disk++) {
1286 if (!(config = (struct promise_raid_conf *)
1287 malloc(sizeof(struct promise_raid_conf), M_AR, M_NOWAIT))) {
1288 printf("ar%d: %s write conf failed\n",
1289 rdp->lun, local ? "FreeBSD" : "Promise");
1292 for (count = 0; count < sizeof(struct promise_raid_conf); count++)
1293 *(((u_int8_t *)config) + count) = 255 - (count % 256);
1296 bcopy(ATA_MAGIC, config->promise_id, sizeof(ATA_MAGIC));
1298 bcopy(PR_MAGIC, config->promise_id, sizeof(PR_MAGIC));
1299 config->dummy_0 = 0x00020000;
1300 config->magic_0 = PR_MAGIC0(rdp->disks[disk]) | timestamp.tv_sec;
1301 config->magic_1 = timestamp.tv_sec >> 16;
1302 config->magic_2 = timestamp.tv_sec;
1303 config->raid.integrity = PR_I_VALID;
1305 config->raid.disk_number = disk;
1306 if ((rdp->disks[disk].flags&AR_DF_PRESENT) && rdp->disks[disk].device) {
1307 config->raid.channel = rdp->disks[disk].device->channel->unit;
1308 config->raid.device = (rdp->disks[disk].device->unit != 0);
1309 if (AD_SOFTC(rdp->disks[disk])->dev->si_disk)
1310 config->raid.disk_sectors = PR_LBA(AD_SOFTC(rdp->disks[disk]));
1311 /*config->raid.disk_offset*/
1313 config->raid.magic_0 = config->magic_0;
1314 config->raid.rebuild_lba = rdp->lock_start;
1315 config->raid.generation = rdp->generation;
1317 if (rdp->flags & AR_F_READY) {
1318 config->raid.flags = (PR_F_VALID | PR_F_ASSIGNED | PR_F_ONLINE);
1319 config->raid.status =
1320 (PR_S_VALID | PR_S_ONLINE | PR_S_INITED | PR_S_READY);
1321 if (rdp->flags & AR_F_DEGRADED)
1322 config->raid.status |= PR_S_DEGRADED;
1324 config->raid.status |= PR_S_FUNCTIONAL;
1327 config->raid.status = 0;
1328 config->raid.flags = PR_F_DOWN;
1331 switch (rdp->flags & (AR_F_RAID0 | AR_F_RAID1 | AR_F_SPAN)) {
1333 config->raid.type = PR_T_RAID0;
1336 config->raid.type = PR_T_RAID1;
1338 case AR_F_RAID0 | AR_F_RAID1:
1339 config->raid.type = PR_T_RAID1;
1342 config->raid.type = PR_T_SPAN;
1346 config->raid.total_disks = rdp->total_disks;
1347 config->raid.stripe_shift = ffs(rdp->interleave) - 1;
1348 config->raid.array_width = rdp->width;
1349 config->raid.array_number = rdp->lun;
1350 config->raid.total_sectors = rdp->total_sectors;
1351 config->raid.cylinders = rdp->cylinders - 1;
1352 config->raid.heads = rdp->heads - 1;
1353 config->raid.sectors = rdp->sectors;
1354 config->raid.magic_1 = (u_int64_t)config->magic_2<<16 | config->magic_1;
1356 bzero(&config->raid.disk, 8 * 12);
1357 for (drive = 0; drive < rdp->total_disks; drive++) {
1358 config->raid.disk[drive].flags = 0;
1359 if (rdp->disks[drive].flags & AR_DF_PRESENT)
1360 config->raid.disk[drive].flags |= PR_F_VALID;
1361 if (rdp->disks[drive].flags & AR_DF_ASSIGNED)
1362 config->raid.disk[drive].flags |= PR_F_ASSIGNED;
1363 if (rdp->disks[drive].flags & AR_DF_ONLINE)
1364 config->raid.disk[drive].flags |= PR_F_ONLINE;
1366 if (rdp->disks[drive].flags & AR_DF_PRESENT)
1367 config->raid.disk[drive].flags = (PR_F_REDIR | PR_F_DOWN);
1368 if (rdp->disks[drive].flags & AR_DF_SPARE)
1369 config->raid.disk[drive].flags |= PR_F_SPARE;
1370 config->raid.disk[drive].dummy_0 = 0x0;
1371 if (rdp->disks[drive].device) {
1372 config->raid.disk[drive].channel =
1373 rdp->disks[drive].device->channel->unit;
1374 config->raid.disk[drive].device =
1375 (rdp->disks[drive].device->unit != 0);
1377 config->raid.disk[drive].magic_0 =
1378 PR_MAGIC0(rdp->disks[drive]) | timestamp.tv_sec;
1381 config->checksum = 0;
1382 for (ckptr = (int32_t *)config, count = 0; count < 511; count++)
1383 config->checksum += *ckptr++;
1384 if (rdp->disks[disk].device && rdp->disks[disk].device->driver &&
1385 !(rdp->disks[disk].device->flags & ATA_D_DETACHING)) {
1386 if (ar_rw(AD_SOFTC(rdp->disks[disk]),
1387 PR_LBA(AD_SOFTC(rdp->disks[disk])),
1388 sizeof(struct promise_raid_conf),
1389 (caddr_t)config, AR_WRITE)) {
1390 printf("ar%d: %s write conf failed\n",
1391 rdp->lun, local ? "FreeBSD" : "Promise");
1400 ar_rw_done(struct buf *bp)
1402 free(bp->b_data, M_AR);
1407 ar_rw(struct ad_softc *adp, u_int32_t lba, int count, caddr_t data, int flags)
1410 int retry = 0, error = 0;
1412 if (!(bp = (struct buf *)malloc(sizeof(struct buf), M_AR, M_NOWAIT|M_ZERO)))
1415 BUF_LOCK(bp, LK_EXCLUSIVE);
1416 bp->b_dev = adp->dev;
1419 bp->b_bcount = count;
1420 if (flags & AR_WAIT)
1421 bp->b_iodone = (void *)wakeup;
1423 bp->b_iodone = ar_rw_done;
1424 bp->b_flags = B_CALL;
1425 if (flags & AR_READ)
1426 bp->b_flags |= B_READ;
1427 if (flags & AR_WRITE)
1428 bp->b_flags |= B_WRITE;
1430 AR_STRATEGY((struct buf *)bp);
1432 if (flags & AR_WAIT) {
1433 while ((retry++ < (15*hz/10)) && (error = !(bp->b_flags & B_DONE)))
1434 error = tsleep(bp, 0, "arrw", 10);
1435 if (!error && (bp->b_flags & B_ERROR))
1436 error = bp->b_error;
1442 static struct ata_device *
1443 ar_locate_disk(int diskno)
1445 struct ata_channel *ch;
1448 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
1449 if (!(ch = devclass_get_softc(ata_devclass, ctlr)))
1451 if (ch->devices & ATA_ATA_MASTER)
1452 if (ch->device[MASTER].driver &&
1453 ((struct ad_softc *)(ch->device[MASTER].driver))->lun == diskno)
1454 return &ch->device[MASTER];
1455 if (ch->devices & ATA_ATA_SLAVE)
1456 if (ch->device[SLAVE].driver &&
1457 ((struct ad_softc *)(ch->device[SLAVE].driver))->lun == diskno)
1458 return &ch->device[SLAVE];