2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
37 #include <sys/mutex.h>
40 #include <sys/sysctl.h>
41 #include <sys/malloc.h>
42 #include <geom/geom.h>
43 #include <geom/geom_dbg.h>
44 #include <geom/concat/g_concat.h>
46 FEATURE(geom_concat, "GEOM concatenation support");
48 static MALLOC_DEFINE(M_CONCAT, "concat_data", "GEOM_CONCAT Data");
50 SYSCTL_DECL(_kern_geom);
51 static SYSCTL_NODE(_kern_geom, OID_AUTO, concat, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
53 static u_int g_concat_debug = 0;
54 SYSCTL_UINT(_kern_geom_concat, OID_AUTO, debug, CTLFLAG_RWTUN, &g_concat_debug, 0,
57 static int g_concat_destroy(struct g_concat_softc *sc, boolean_t force);
58 static int g_concat_destroy_geom(struct gctl_req *req, struct g_class *mp,
61 static g_taste_t g_concat_taste;
62 static g_ctl_req_t g_concat_config;
63 static g_dumpconf_t g_concat_dumpconf;
65 struct g_class g_concat_class = {
66 .name = G_CONCAT_CLASS_NAME,
68 .ctlreq = g_concat_config,
69 .taste = g_concat_taste,
70 .destroy_geom = g_concat_destroy_geom
74 * Greatest Common Divisor.
90 * Least Common Multiple.
96 return ((a * b) / gcd(a, b));
100 * Return the number of valid disks.
103 g_concat_nvalid(struct g_concat_softc *sc)
108 for (i = 0; i < sc->sc_ndisks; i++) {
109 if (sc->sc_disks[i].d_consumer != NULL)
117 g_concat_remove_disk(struct g_concat_disk *disk)
119 struct g_consumer *cp;
120 struct g_concat_softc *sc;
123 KASSERT(disk->d_consumer != NULL, ("Non-valid disk in %s.", __func__));
125 cp = disk->d_consumer;
127 if (!disk->d_removed) {
128 G_CONCAT_DEBUG(0, "Disk %s removed from %s.",
129 cp->provider->name, sc->sc_name);
133 if (sc->sc_provider != NULL) {
134 G_CONCAT_DEBUG(0, "Device %s deactivated.",
135 sc->sc_provider->name);
136 g_wither_provider(sc->sc_provider, ENXIO);
137 sc->sc_provider = NULL;
140 if (cp->acr > 0 || cp->acw > 0 || cp->ace > 0)
142 disk->d_consumer = NULL;
144 g_destroy_consumer(cp);
145 /* If there are no valid disks anymore, remove device. */
146 if (LIST_EMPTY(&sc->sc_geom->consumer))
147 g_concat_destroy(sc, 1);
151 g_concat_orphan(struct g_consumer *cp)
153 struct g_concat_softc *sc;
154 struct g_concat_disk *disk;
164 if (disk == NULL) /* Possible? */
166 g_concat_remove_disk(disk);
170 g_concat_access(struct g_provider *pp, int dr, int dw, int de)
172 struct g_consumer *cp1, *cp2, *tmp;
173 struct g_concat_disk *disk;
180 /* On first open, grab an extra "exclusive" bit */
181 if (pp->acr == 0 && pp->acw == 0 && pp->ace == 0)
183 /* ... and let go of it on last close */
184 if ((pp->acr + dr) == 0 && (pp->acw + dw) == 0 && (pp->ace + de) == 0)
187 LIST_FOREACH_SAFE(cp1, &gp->consumer, consumer, tmp) {
188 error = g_access(cp1, dr, dw, de);
192 if (cp1->acr == 0 && cp1->acw == 0 && cp1->ace == 0 &&
194 g_concat_remove_disk(disk); /* May destroy geom. */
200 LIST_FOREACH(cp2, &gp->consumer, consumer) {
203 g_access(cp2, -dr, -dw, -de);
209 g_concat_candelete(struct bio *bp)
211 struct g_concat_softc *sc;
212 struct g_concat_disk *disk;
215 sc = bp->bio_to->geom->softc;
216 for (i = 0; i < sc->sc_ndisks; i++) {
217 disk = &sc->sc_disks[i];
218 if (!disk->d_removed && disk->d_candelete)
221 val = i < sc->sc_ndisks;
222 g_handleattr(bp, "GEOM::candelete", &val, sizeof(val));
226 g_concat_kernel_dump(struct bio *bp)
228 struct g_concat_softc *sc;
229 struct g_concat_disk *disk;
231 struct g_kerneldump *gkd;
234 sc = bp->bio_to->geom->softc;
235 gkd = (struct g_kerneldump *)bp->bio_data;
236 for (i = 0; i < sc->sc_ndisks; i++) {
237 if (sc->sc_disks[i].d_start <= gkd->offset &&
238 sc->sc_disks[i].d_end > gkd->offset)
241 if (i == sc->sc_ndisks) {
242 g_io_deliver(bp, EOPNOTSUPP);
245 disk = &sc->sc_disks[i];
246 gkd->offset -= disk->d_start;
247 if (gkd->length > disk->d_end - disk->d_start - gkd->offset)
248 gkd->length = disk->d_end - disk->d_start - gkd->offset;
249 cbp = g_clone_bio(bp);
251 g_io_deliver(bp, ENOMEM);
254 cbp->bio_done = g_std_done;
255 g_io_request(cbp, disk->d_consumer);
256 G_CONCAT_DEBUG(1, "Kernel dump will go to %s.",
257 disk->d_consumer->provider->name);
261 g_concat_done(struct bio *bp)
263 struct g_concat_softc *sc;
266 pbp = bp->bio_parent;
267 sc = pbp->bio_to->geom->softc;
268 mtx_lock(&sc->sc_lock);
269 if (pbp->bio_error == 0)
270 pbp->bio_error = bp->bio_error;
271 pbp->bio_completed += bp->bio_completed;
273 if (pbp->bio_children == pbp->bio_inbed) {
274 mtx_unlock(&sc->sc_lock);
275 g_io_deliver(pbp, pbp->bio_error);
277 mtx_unlock(&sc->sc_lock);
282 * Called for both BIO_FLUSH and BIO_SPEEDUP. Just pass the call down
285 g_concat_passdown(struct g_concat_softc *sc, struct bio *bp)
287 struct bio_queue_head queue;
288 struct g_consumer *cp;
293 for (no = 0; no < sc->sc_ndisks; no++) {
294 cbp = g_clone_bio(bp);
296 while ((cbp = bioq_takefirst(&queue)) != NULL)
298 if (bp->bio_error == 0)
299 bp->bio_error = ENOMEM;
300 g_io_deliver(bp, bp->bio_error);
303 bioq_insert_tail(&queue, cbp);
304 cbp->bio_done = g_concat_done;
305 cbp->bio_caller1 = sc->sc_disks[no].d_consumer;
306 cbp->bio_to = sc->sc_disks[no].d_consumer->provider;
308 while ((cbp = bioq_takefirst(&queue)) != NULL) {
309 G_CONCAT_LOGREQ(cbp, "Sending request.");
310 cp = cbp->bio_caller1;
311 cbp->bio_caller1 = NULL;
312 g_io_request(cbp, cp);
317 g_concat_start(struct bio *bp)
319 struct bio_queue_head queue;
320 struct g_concat_softc *sc;
321 struct g_concat_disk *disk;
322 struct g_provider *pp;
323 off_t offset, end, length, off, len;
329 sc = pp->geom->softc;
331 * If sc == NULL, provider's error should be set and g_concat_start()
332 * should not be called at all.
335 ("Provider's error should be set (error=%d)(device=%s).",
336 bp->bio_to->error, bp->bio_to->name));
338 G_CONCAT_LOGREQ(bp, "Request received.");
340 switch (bp->bio_cmd) {
347 g_concat_passdown(sc, bp);
350 if (strcmp("GEOM::kerneldump", bp->bio_attribute) == 0) {
351 g_concat_kernel_dump(bp);
353 } else if (strcmp("GEOM::candelete", bp->bio_attribute) == 0) {
354 g_concat_candelete(bp);
357 /* To which provider it should be delivered? */
360 g_io_deliver(bp, EOPNOTSUPP);
364 offset = bp->bio_offset;
365 length = bp->bio_length;
366 if ((bp->bio_flags & BIO_UNMAPPED) != 0)
370 end = offset + length;
373 for (no = 0; no < sc->sc_ndisks; no++) {
374 disk = &sc->sc_disks[no];
375 if (disk->d_end <= offset)
377 if (disk->d_start >= end)
380 off = offset - disk->d_start;
381 len = MIN(length, disk->d_end - offset);
385 cbp = g_clone_bio(bp);
387 while ((cbp = bioq_takefirst(&queue)) != NULL)
389 if (bp->bio_error == 0)
390 bp->bio_error = ENOMEM;
391 g_io_deliver(bp, bp->bio_error);
394 bioq_insert_tail(&queue, cbp);
396 * Fill in the component buf structure.
398 if (len == bp->bio_length)
399 cbp->bio_done = g_std_done;
401 cbp->bio_done = g_concat_done;
402 cbp->bio_offset = off;
403 cbp->bio_length = len;
404 if ((bp->bio_flags & BIO_UNMAPPED) != 0) {
405 cbp->bio_ma_offset += (uintptr_t)addr;
406 cbp->bio_ma += cbp->bio_ma_offset / PAGE_SIZE;
407 cbp->bio_ma_offset %= PAGE_SIZE;
408 cbp->bio_ma_n = round_page(cbp->bio_ma_offset +
409 cbp->bio_length) / PAGE_SIZE;
411 cbp->bio_data = addr;
413 cbp->bio_to = disk->d_consumer->provider;
414 cbp->bio_caller1 = disk;
420 ("Length is still greater than 0 (class=%s, name=%s).",
421 bp->bio_to->geom->class->name, bp->bio_to->geom->name));
422 while ((cbp = bioq_takefirst(&queue)) != NULL) {
423 G_CONCAT_LOGREQ(cbp, "Sending request.");
424 disk = cbp->bio_caller1;
425 cbp->bio_caller1 = NULL;
426 g_io_request(cbp, disk->d_consumer);
431 g_concat_check_and_run(struct g_concat_softc *sc)
433 struct g_concat_disk *disk;
434 struct g_provider *dp, *pp;
435 u_int no, sectorsize = 0;
440 if (g_concat_nvalid(sc) != sc->sc_ndisks)
443 pp = g_new_providerf(sc->sc_geom, "concat/%s", sc->sc_name);
444 pp->flags |= G_PF_DIRECT_SEND | G_PF_DIRECT_RECEIVE |
445 G_PF_ACCEPT_UNMAPPED;
447 for (no = 0; no < sc->sc_ndisks; no++) {
448 disk = &sc->sc_disks[no];
449 dp = disk->d_consumer->provider;
450 disk->d_start = start;
451 disk->d_end = disk->d_start + dp->mediasize;
452 if (sc->sc_type == G_CONCAT_TYPE_AUTOMATIC)
453 disk->d_end -= dp->sectorsize;
455 error = g_access(disk->d_consumer, 1, 0, 0);
457 error = g_getattr("GEOM::candelete", disk->d_consumer,
460 disk->d_candelete = 0;
461 (void)g_access(disk->d_consumer, -1, 0, 0);
463 G_CONCAT_DEBUG(1, "Failed to access disk %s, error %d.",
466 sectorsize = dp->sectorsize;
468 sectorsize = lcm(sectorsize, dp->sectorsize);
470 /* A provider underneath us doesn't support unmapped */
471 if ((dp->flags & G_PF_ACCEPT_UNMAPPED) == 0) {
472 G_CONCAT_DEBUG(1, "Cancelling unmapped "
473 "because of %s.", dp->name);
474 pp->flags &= ~G_PF_ACCEPT_UNMAPPED;
477 pp->sectorsize = sectorsize;
478 /* We have sc->sc_disks[sc->sc_ndisks - 1].d_end in 'start'. */
479 pp->mediasize = start;
480 pp->stripesize = sc->sc_disks[0].d_consumer->provider->stripesize;
481 pp->stripeoffset = sc->sc_disks[0].d_consumer->provider->stripeoffset;
482 sc->sc_provider = pp;
483 g_error_provider(pp, 0);
485 G_CONCAT_DEBUG(0, "Device %s activated.", sc->sc_provider->name);
489 g_concat_read_metadata(struct g_consumer *cp, struct g_concat_metadata *md)
491 struct g_provider *pp;
497 error = g_access(cp, 1, 0, 0);
502 buf = g_read_data(cp, pp->mediasize - pp->sectorsize, pp->sectorsize,
505 g_access(cp, -1, 0, 0);
509 /* Decode metadata. */
510 concat_metadata_decode(buf, md);
517 * Add disk to given device.
520 g_concat_add_disk(struct g_concat_softc *sc, struct g_provider *pp, u_int no)
522 struct g_concat_disk *disk;
523 struct g_consumer *cp, *fcp;
528 /* Metadata corrupted? */
529 if (no >= sc->sc_ndisks)
532 disk = &sc->sc_disks[no];
533 /* Check if disk is not already attached. */
534 if (disk->d_consumer != NULL)
538 fcp = LIST_FIRST(&gp->consumer);
540 cp = g_new_consumer(gp);
541 cp->flags |= G_CF_DIRECT_SEND | G_CF_DIRECT_RECEIVE;
542 error = g_attach(cp, pp);
544 g_destroy_consumer(cp);
548 if (fcp != NULL && (fcp->acr > 0 || fcp->acw > 0 || fcp->ace > 0)) {
549 error = g_access(cp, fcp->acr, fcp->acw, fcp->ace);
552 g_destroy_consumer(cp);
556 if (sc->sc_type == G_CONCAT_TYPE_AUTOMATIC) {
557 struct g_concat_metadata md;
559 /* Re-read metadata. */
560 error = g_concat_read_metadata(cp, &md);
564 if (strcmp(md.md_magic, G_CONCAT_MAGIC) != 0 ||
565 strcmp(md.md_name, sc->sc_name) != 0 ||
566 md.md_id != sc->sc_id) {
567 G_CONCAT_DEBUG(0, "Metadata on %s changed.", pp->name);
573 disk->d_consumer = cp;
575 disk->d_start = 0; /* not yet */
576 disk->d_end = 0; /* not yet */
579 G_CONCAT_DEBUG(0, "Disk %s attached to %s.", pp->name, sc->sc_name);
581 g_concat_check_and_run(sc);
585 if (fcp != NULL && (fcp->acr > 0 || fcp->acw > 0 || fcp->ace > 0))
586 g_access(cp, -fcp->acr, -fcp->acw, -fcp->ace);
588 g_destroy_consumer(cp);
592 static struct g_geom *
593 g_concat_create(struct g_class *mp, const struct g_concat_metadata *md,
596 struct g_concat_softc *sc;
600 G_CONCAT_DEBUG(1, "Creating device %s (id=%u).", md->md_name,
603 /* One disks is minimum. */
607 /* Check for duplicate unit */
608 LIST_FOREACH(gp, &mp->geom, geom) {
610 if (sc != NULL && strcmp(sc->sc_name, md->md_name) == 0) {
611 G_CONCAT_DEBUG(0, "Device %s already configured.",
616 gp = g_new_geomf(mp, "%s", md->md_name);
617 sc = malloc(sizeof(*sc), M_CONCAT, M_WAITOK | M_ZERO);
618 gp->start = g_concat_start;
619 gp->spoiled = g_concat_orphan;
620 gp->orphan = g_concat_orphan;
621 gp->access = g_concat_access;
622 gp->dumpconf = g_concat_dumpconf;
624 sc->sc_id = md->md_id;
625 sc->sc_ndisks = md->md_all;
626 sc->sc_disks = malloc(sizeof(struct g_concat_disk) * sc->sc_ndisks,
627 M_CONCAT, M_WAITOK | M_ZERO);
628 for (no = 0; no < sc->sc_ndisks; no++)
629 sc->sc_disks[no].d_consumer = NULL;
631 mtx_init(&sc->sc_lock, "gconcat lock", NULL, MTX_DEF);
635 sc->sc_provider = NULL;
637 G_CONCAT_DEBUG(0, "Device %s created (id=%u).", sc->sc_name, sc->sc_id);
643 g_concat_destroy(struct g_concat_softc *sc, boolean_t force)
645 struct g_provider *pp;
646 struct g_consumer *cp, *cp1;
654 pp = sc->sc_provider;
655 if (pp != NULL && (pp->acr != 0 || pp->acw != 0 || pp->ace != 0)) {
657 G_CONCAT_DEBUG(0, "Device %s is still open, so it "
658 "can't be definitely removed.", pp->name);
661 "Device %s is still open (r%dw%de%d).", pp->name,
662 pp->acr, pp->acw, pp->ace);
668 LIST_FOREACH_SAFE(cp, &gp->consumer, consumer, cp1) {
669 g_concat_remove_disk(cp->private);
671 return (0); /* Recursion happened. */
673 if (!LIST_EMPTY(&gp->consumer))
674 return (EINPROGRESS);
677 KASSERT(sc->sc_provider == NULL, ("Provider still exists? (device=%s)",
679 free(sc->sc_disks, M_CONCAT);
680 mtx_destroy(&sc->sc_lock);
683 G_CONCAT_DEBUG(0, "Device %s destroyed.", gp->name);
684 g_wither_geom(gp, ENXIO);
689 g_concat_destroy_geom(struct gctl_req *req __unused,
690 struct g_class *mp __unused, struct g_geom *gp)
692 struct g_concat_softc *sc;
695 return (g_concat_destroy(sc, 0));
698 static struct g_geom *
699 g_concat_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
701 struct g_concat_metadata md;
702 struct g_concat_softc *sc;
703 struct g_consumer *cp;
707 g_trace(G_T_TOPOLOGY, "%s(%s, %s)", __func__, mp->name, pp->name);
710 /* Skip providers that are already open for writing. */
714 G_CONCAT_DEBUG(3, "Tasting %s.", pp->name);
716 gp = g_new_geomf(mp, "concat:taste");
717 gp->start = g_concat_start;
718 gp->access = g_concat_access;
719 gp->orphan = g_concat_orphan;
720 cp = g_new_consumer(gp);
722 error = g_concat_read_metadata(cp, &md);
724 g_destroy_consumer(cp);
730 if (strcmp(md.md_magic, G_CONCAT_MAGIC) != 0)
732 if (md.md_version > G_CONCAT_VERSION) {
733 printf("geom_concat.ko module is too old to handle %s.\n",
738 * Backward compatibility:
740 /* There was no md_provider field in earlier versions of metadata. */
741 if (md.md_version < 3)
742 bzero(md.md_provider, sizeof(md.md_provider));
743 /* There was no md_provsize field in earlier versions of metadata. */
744 if (md.md_version < 4)
745 md.md_provsize = pp->mediasize;
747 if (md.md_provider[0] != '\0' &&
748 !g_compare_names(md.md_provider, pp->name))
750 if (md.md_provsize != pp->mediasize)
754 * Let's check if device already exists.
757 LIST_FOREACH(gp, &mp->geom, geom) {
761 if (sc->sc_type != G_CONCAT_TYPE_AUTOMATIC)
763 if (strcmp(md.md_name, sc->sc_name) != 0)
765 if (md.md_id != sc->sc_id)
770 G_CONCAT_DEBUG(1, "Adding disk %s to %s.", pp->name, gp->name);
771 error = g_concat_add_disk(sc, pp, md.md_no);
774 "Cannot add disk %s to %s (error=%d).", pp->name,
779 gp = g_concat_create(mp, &md, G_CONCAT_TYPE_AUTOMATIC);
781 G_CONCAT_DEBUG(0, "Cannot create device %s.",
786 G_CONCAT_DEBUG(1, "Adding disk %s to %s.", pp->name, gp->name);
787 error = g_concat_add_disk(sc, pp, md.md_no);
790 "Cannot add disk %s to %s (error=%d).", pp->name,
792 g_concat_destroy(sc, 1);
801 g_concat_ctl_create(struct gctl_req *req, struct g_class *mp)
804 struct g_concat_metadata md;
805 struct g_provider *pp;
806 struct g_concat_softc *sc;
814 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
816 gctl_error(req, "No '%s' argument.", "nargs");
820 gctl_error(req, "Too few arguments.");
824 strlcpy(md.md_magic, G_CONCAT_MAGIC, sizeof(md.md_magic));
825 md.md_version = G_CONCAT_VERSION;
826 name = gctl_get_asciiparam(req, "arg0");
828 gctl_error(req, "No 'arg%u' argument.", 0);
831 strlcpy(md.md_name, name, sizeof(md.md_name));
832 md.md_id = arc4random();
834 md.md_all = *nargs - 1;
835 bzero(md.md_provider, sizeof(md.md_provider));
836 /* This field is not important here. */
839 /* Check all providers are valid */
840 for (no = 1; no < *nargs; no++) {
841 snprintf(param, sizeof(param), "arg%u", no);
842 pp = gctl_get_provider(req, param);
847 gp = g_concat_create(mp, &md, G_CONCAT_TYPE_MANUAL);
849 gctl_error(req, "Can't configure %s.", md.md_name);
854 sb = sbuf_new_auto();
855 sbuf_printf(sb, "Can't attach disk(s) to %s:", gp->name);
856 for (attached = 0, no = 1; no < *nargs; no++) {
857 snprintf(param, sizeof(param), "arg%u", no);
858 pp = gctl_get_provider(req, param);
860 name = gctl_get_asciiparam(req, param);
862 sbuf_printf(sb, " %s", name);
865 if (g_concat_add_disk(sc, pp, no - 1) != 0) {
866 G_CONCAT_DEBUG(1, "Disk %u (%s) not attached to %s.",
867 no, pp->name, gp->name);
868 sbuf_printf(sb, " %s", pp->name);
874 if (md.md_all != attached) {
875 g_concat_destroy(gp->softc, 1);
876 gctl_error(req, "%s", sbuf_data(sb));
881 static struct g_concat_softc *
882 g_concat_find_device(struct g_class *mp, const char *name)
884 struct g_concat_softc *sc;
887 if (strncmp(name, _PATH_DEV, strlen(_PATH_DEV)) == 0)
888 name += strlen(_PATH_DEV);
890 LIST_FOREACH(gp, &mp->geom, geom) {
894 if (strcmp(sc->sc_name, name) == 0)
901 g_concat_ctl_destroy(struct gctl_req *req, struct g_class *mp)
903 struct g_concat_softc *sc;
904 int *force, *nargs, error;
911 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
913 gctl_error(req, "No '%s' argument.", "nargs");
917 gctl_error(req, "Missing device(s).");
920 force = gctl_get_paraml(req, "force", sizeof(*force));
922 gctl_error(req, "No '%s' argument.", "force");
926 for (i = 0; i < (u_int)*nargs; i++) {
927 snprintf(param, sizeof(param), "arg%u", i);
928 name = gctl_get_asciiparam(req, param);
930 gctl_error(req, "No 'arg%u' argument.", i);
933 sc = g_concat_find_device(mp, name);
935 gctl_error(req, "No such device: %s.", name);
938 error = g_concat_destroy(sc, *force);
940 gctl_error(req, "Cannot destroy device %s (error=%d).",
948 g_concat_config(struct gctl_req *req, struct g_class *mp, const char *verb)
954 version = gctl_get_paraml(req, "version", sizeof(*version));
955 if (version == NULL) {
956 gctl_error(req, "No '%s' argument.", "version");
959 if (*version != G_CONCAT_VERSION) {
960 gctl_error(req, "Userland and kernel parts are out of sync.");
964 if (strcmp(verb, "create") == 0) {
965 g_concat_ctl_create(req, mp);
967 } else if (strcmp(verb, "destroy") == 0 ||
968 strcmp(verb, "stop") == 0) {
969 g_concat_ctl_destroy(req, mp);
972 gctl_error(req, "Unknown verb.");
976 g_concat_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
977 struct g_consumer *cp, struct g_provider *pp)
979 struct g_concat_softc *sc;
987 } else if (cp != NULL) {
988 struct g_concat_disk *disk;
993 sbuf_printf(sb, "%s<End>%jd</End>\n", indent,
994 (intmax_t)disk->d_end);
995 sbuf_printf(sb, "%s<Start>%jd</Start>\n", indent,
996 (intmax_t)disk->d_start);
998 sbuf_printf(sb, "%s<ID>%u</ID>\n", indent, (u_int)sc->sc_id);
999 sbuf_printf(sb, "%s<Type>", indent);
1000 switch (sc->sc_type) {
1001 case G_CONCAT_TYPE_AUTOMATIC:
1002 sbuf_cat(sb, "AUTOMATIC");
1004 case G_CONCAT_TYPE_MANUAL:
1005 sbuf_cat(sb, "MANUAL");
1008 sbuf_cat(sb, "UNKNOWN");
1011 sbuf_cat(sb, "</Type>\n");
1012 sbuf_printf(sb, "%s<Status>Total=%u, Online=%u</Status>\n",
1013 indent, sc->sc_ndisks, g_concat_nvalid(sc));
1014 sbuf_printf(sb, "%s<State>", indent);
1015 if (sc->sc_provider != NULL && sc->sc_provider->error == 0)
1018 sbuf_cat(sb, "DOWN");
1019 sbuf_cat(sb, "</State>\n");
1023 DECLARE_GEOM_CLASS(g_concat_class, g_concat);
1024 MODULE_VERSION(geom_concat, 0);