2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004-2009 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>
35 #include <sys/kernel.h>
36 #include <sys/limits.h>
38 #include <sys/malloc.h>
42 #include <geom/geom.h>
43 #include <geom/geom_dbg.h>
44 #include <geom/geom_int.h>
45 #include <geom/mirror/g_mirror.h>
48 * Configure, Rebuild, Remove, Deactivate, Forget, and Stop operations do not
49 * seem to depend on any particular g_mirror initialization state.
51 static struct g_mirror_softc *
52 g_mirror_find_device(struct g_class *mp, const char *name)
54 struct g_mirror_softc *sc;
58 LIST_FOREACH(gp, &mp->geom, geom) {
62 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_DESTROY) != 0)
64 if (strcmp(gp->name, name) == 0 ||
65 strcmp(sc->sc_name, name) == 0) {
67 sx_xlock(&sc->sc_lock);
68 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_DESTROY) != 0) {
69 sx_xunlock(&sc->sc_lock);
79 /* Insert and Resize operations depend on a launched GEOM (sc_provider). */
80 #define GMFL_VALID_FLAGS (M_WAITOK | M_NOWAIT)
81 static struct g_mirror_softc *
82 g_mirror_find_launched_device(struct g_class *mp, const char *name, int flags)
84 struct g_mirror_softc *sc;
87 KASSERT((flags & ~GMFL_VALID_FLAGS) == 0 &&
88 flags != GMFL_VALID_FLAGS && flags != 0,
89 ("%s: Invalid flags %x\n", __func__, (unsigned)flags));
90 #undef GMFL_VALID_FLAGS
93 sc = g_mirror_find_device(mp, name);
96 if (sc->sc_provider != NULL)
98 if (flags & M_NOWAIT) {
99 sx_xunlock(&sc->sc_lock);
104 * This is a dumb hack. G_mirror does not expose any real
105 * wakeup API for observing state changes, and even if it did,
106 * its "RUNNING" state does not actually reflect all softc
107 * elements being initialized.
109 * Revamping g_mirror to have a 3rd, ACTUALLY_RUNNING state and
110 * updating all assertions and sc_state checks is a large work
111 * and would be easy to introduce regressions.
113 * Revamping g_mirror to have a wakeup for state changes would
114 * be difficult if one wanted to capture more than just
115 * sc_state and sc_provider.
117 * For now, just dummy sleep-poll until sc_provider shows up,
118 * the user cancels, or the g_mirror is destroyed.
120 error = sx_sleep(&sc, &sc->sc_lock, PRIBIO | PCATCH | PDROP,
122 if (error != 0 && error != EWOULDBLOCK)
128 static struct g_mirror_disk *
129 g_mirror_find_disk(struct g_mirror_softc *sc, const char *name)
131 struct g_mirror_disk *disk;
133 sx_assert(&sc->sc_lock, SX_XLOCKED);
134 if (strncmp(name, _PATH_DEV, 5) == 0)
136 LIST_FOREACH(disk, &sc->sc_disks, d_next) {
137 if (disk->d_consumer == NULL)
139 if (disk->d_consumer->provider == NULL)
141 if (strcmp(disk->d_consumer->provider->name, name) == 0)
148 g_mirror_ctl_configure(struct gctl_req *req, struct g_class *mp)
150 struct g_mirror_softc *sc;
151 struct g_mirror_disk *disk;
152 const char *name, *balancep, *prov;
153 intmax_t *slicep, *priority;
156 int *autosync, *noautosync, *failsync, *nofailsync, *hardcode, *dynamic;
157 int *nargs, do_sync = 0, dirty = 1, do_priority = 0;
159 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
161 gctl_error(req, "No '%s' argument.", "nargs");
164 if (*nargs != 1 && *nargs != 2) {
165 gctl_error(req, "Invalid number of arguments.");
168 name = gctl_get_asciiparam(req, "arg0");
170 gctl_error(req, "No 'arg%u' argument.", 0);
173 balancep = gctl_get_asciiparam(req, "balance");
174 if (balancep == NULL) {
175 gctl_error(req, "No '%s' argument.", "balance");
178 autosync = gctl_get_paraml(req, "autosync", sizeof(*autosync));
179 if (autosync == NULL) {
180 gctl_error(req, "No '%s' argument.", "autosync");
183 noautosync = gctl_get_paraml(req, "noautosync", sizeof(*noautosync));
184 if (noautosync == NULL) {
185 gctl_error(req, "No '%s' argument.", "noautosync");
188 failsync = gctl_get_paraml(req, "failsync", sizeof(*failsync));
189 if (failsync == NULL) {
190 gctl_error(req, "No '%s' argument.", "failsync");
193 nofailsync = gctl_get_paraml(req, "nofailsync", sizeof(*nofailsync));
194 if (nofailsync == NULL) {
195 gctl_error(req, "No '%s' argument.", "nofailsync");
198 hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
199 if (hardcode == NULL) {
200 gctl_error(req, "No '%s' argument.", "hardcode");
203 dynamic = gctl_get_paraml(req, "dynamic", sizeof(*dynamic));
204 if (dynamic == NULL) {
205 gctl_error(req, "No '%s' argument.", "dynamic");
208 priority = gctl_get_paraml(req, "priority", sizeof(*priority));
209 if (priority == NULL) {
210 gctl_error(req, "No '%s' argument.", "priority");
213 if (*priority < -1 || *priority > 255) {
214 gctl_error(req, "Priority range is 0 to 255, %jd given",
219 * Since we have a priority, we also need a provider now.
220 * Note: be WARNS safe, by always assigning prov and only throw an
221 * error if *priority != -1.
223 prov = gctl_get_asciiparam(req, "arg1");
224 if (*priority > -1) {
226 gctl_error(req, "Priority needs a disk name");
231 if (*autosync && *noautosync) {
232 gctl_error(req, "'%s' and '%s' specified.", "autosync",
236 if (*failsync && *nofailsync) {
237 gctl_error(req, "'%s' and '%s' specified.", "failsync",
241 if (*hardcode && *dynamic) {
242 gctl_error(req, "'%s' and '%s' specified.", "hardcode",
246 sc = g_mirror_find_device(mp, name);
248 gctl_error(req, "No such device: %s.", name);
251 if (*balancep == '\0')
252 balance = sc->sc_balance;
254 if (balance_id(balancep) == -1) {
255 gctl_error(req, "Invalid balance algorithm.");
256 sx_xunlock(&sc->sc_lock);
259 balance = balance_id(balancep);
261 slicep = gctl_get_paraml(req, "slice", sizeof(*slicep));
262 if (slicep == NULL) {
263 gctl_error(req, "No '%s' argument.", "slice");
264 sx_xunlock(&sc->sc_lock);
268 slice = sc->sc_slice;
271 /* Enforce usage() of -p not allowing any other options. */
272 if (do_priority && (*autosync || *noautosync || *failsync ||
273 *nofailsync || *hardcode || *dynamic || *slicep != -1 ||
274 *balancep != '\0')) {
275 sx_xunlock(&sc->sc_lock);
276 gctl_error(req, "only -p accepted when setting priority");
279 if (sc->sc_balance == balance && sc->sc_slice == slice && !*autosync &&
280 !*noautosync && !*failsync && !*nofailsync && !*hardcode &&
281 !*dynamic && !do_priority) {
282 sx_xunlock(&sc->sc_lock);
283 gctl_error(req, "Nothing has changed.");
286 if ((!do_priority && *nargs != 1) || (do_priority && *nargs != 2)) {
287 sx_xunlock(&sc->sc_lock);
288 gctl_error(req, "Invalid number of arguments.");
291 if (g_mirror_ndisks(sc, -1) < sc->sc_ndisks) {
292 sx_xunlock(&sc->sc_lock);
293 gctl_error(req, "Not all disks connected. Try 'forget' command "
297 sc->sc_balance = balance;
298 sc->sc_slice = slice;
299 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_NOAUTOSYNC) != 0) {
301 sc->sc_flags &= ~G_MIRROR_DEVICE_FLAG_NOAUTOSYNC;
306 sc->sc_flags |= G_MIRROR_DEVICE_FLAG_NOAUTOSYNC;
308 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_NOFAILSYNC) != 0) {
310 sc->sc_flags &= ~G_MIRROR_DEVICE_FLAG_NOFAILSYNC;
313 sc->sc_flags |= G_MIRROR_DEVICE_FLAG_NOFAILSYNC;
317 LIST_FOREACH(disk, &sc->sc_disks, d_next) {
319 * Handle priority first, since we only need one disk, do one
320 * operation on it and then we're done. No need to check other
321 * flags, as usage doesn't allow it.
324 if (strcmp(disk->d_name, prov) == 0) {
325 if (disk->d_priority == *priority)
326 gctl_error(req, "Nothing has changed.");
328 disk->d_priority = *priority;
329 g_mirror_update_metadata(disk);
336 if (disk->d_state == G_MIRROR_DISK_STATE_SYNCHRONIZING)
337 disk->d_flags &= ~G_MIRROR_DISK_FLAG_FORCE_SYNC;
340 disk->d_flags |= G_MIRROR_DISK_FLAG_HARDCODED;
342 disk->d_flags &= ~G_MIRROR_DISK_FLAG_HARDCODED;
344 disk->d_flags &= ~G_MIRROR_DISK_FLAG_DIRTY;
345 g_mirror_update_metadata(disk);
347 if (disk->d_state == G_MIRROR_DISK_STATE_STALE) {
348 g_mirror_event_send(disk,
349 G_MIRROR_DISK_STATE_DISCONNECTED,
350 G_MIRROR_EVENT_DONTWAIT);
354 sx_xunlock(&sc->sc_lock);
358 g_mirror_create_orphan(struct g_consumer *cp)
361 KASSERT(1 == 0, ("%s called while creating %s.", __func__,
362 cp->provider->name));
366 g_mirror_ctl_create(struct gctl_req *req, struct g_class *mp)
368 struct g_mirror_metadata md;
370 struct g_consumer *cp;
371 struct g_provider *pp;
372 struct g_mirror_softc *sc;
381 unsigned attached, no, sectorsize;
384 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
386 gctl_error(req, "No '%s' argument.", "nargs");
390 gctl_error(req, "Too few arguments.");
394 strlcpy(md.md_magic, G_MIRROR_MAGIC, sizeof(md.md_magic));
395 md.md_version = G_MIRROR_VERSION;
396 name = gctl_get_asciiparam(req, "arg0");
398 gctl_error(req, "No 'arg%u' argument.", 0);
401 strlcpy(md.md_name, name, sizeof(md.md_name));
402 md.md_mid = arc4random();
403 md.md_all = *nargs - 1;
406 md.md_sync_offset = 0;
407 val = gctl_get_paraml(req, "slice", sizeof(*val));
409 gctl_error(req, "No slice argument.");
413 sval = gctl_get_asciiparam(req, "balance");
415 gctl_error(req, "No balance argument.");
418 bal = balance_id(sval);
420 gctl_error(req, "Invalid balance algorithm.");
426 ival = gctl_get_paraml(req, "noautosync", sizeof(*ival));
427 if (ival != NULL && *ival)
428 md.md_mflags |= G_MIRROR_DEVICE_FLAG_NOAUTOSYNC;
429 ival = gctl_get_paraml(req, "nofailsync", sizeof(*ival));
430 if (ival != NULL && *ival)
431 md.md_mflags |= G_MIRROR_DEVICE_FLAG_NOFAILSYNC;
432 /* These fields not used in manual mode. */
433 bzero(md.md_provider, sizeof(md.md_provider));
439 gp = g_new_geomf(mp, "%s", md.md_name);
440 gp->orphan = g_mirror_create_orphan;
441 cp = g_new_consumer(gp);
442 for (no = 1; no < *nargs; no++) {
443 snprintf(param, sizeof(param), "arg%u", no);
444 pp = gctl_get_provider(req, param);
447 g_destroy_consumer(cp);
453 if (g_access(cp, 1, 0, 0) != 0) {
454 G_MIRROR_DEBUG(1, "Can't open disk %s.", pp->name);
455 gctl_error(req, "Can't open disk %s.", pp->name);
460 if (pp->mediasize == 0 || pp->sectorsize == 0) {
461 G_MIRROR_DEBUG(1, "Disk %s has no media.", pp->name);
462 gctl_error(req, "Disk %s has no media.", pp->name);
463 g_access(cp, -1, 0, 0);
466 if (pp->mediasize < mediasize)
467 mediasize = pp->mediasize;
468 if (pp->sectorsize > sectorsize)
469 sectorsize = pp->sectorsize;
470 g_access(cp, -1, 0, 0);
473 g_destroy_consumer(cp);
475 md.md_mediasize = mediasize;
476 md.md_sectorsize = sectorsize;
477 md.md_mediasize -= (md.md_mediasize % md.md_sectorsize);
479 gp = g_mirror_create(mp, &md, G_MIRROR_TYPE_MANUAL);
481 gctl_error(req, "Can't create %s.", md.md_name);
488 sx_xlock(&sc->sc_lock);
489 sc->sc_flags |= G_MIRROR_DEVICE_FLAG_TASTING;
490 sb = sbuf_new_auto();
491 sbuf_printf(sb, "Can't attach disk(s) to %s:", gp->name);
492 for (attached = 0, no = 1; no < *nargs; no++) {
493 snprintf(param, sizeof(param), "arg%u", no);
494 pp = gctl_get_provider(req, param);
496 name = gctl_get_asciiparam(req, param);
498 sbuf_printf(sb, " %s", name);
501 md.md_did = arc4random();
502 md.md_priority = no - 1;
503 if (g_mirror_add_disk(sc, pp, &md) != 0) {
504 G_MIRROR_DEBUG(1, "Disk %u (%s) not attached to %s.",
505 no, pp->name, gp->name);
506 sbuf_printf(sb, " %s", pp->name);
512 sc->sc_flags &= ~G_MIRROR_DEVICE_FLAG_TASTING;
513 if (md.md_all != attached ||
514 (sc->sc_flags & G_MIRROR_DEVICE_FLAG_DESTROY) != 0) {
515 g_mirror_destroy(gp->softc, G_MIRROR_DESTROY_HARD);
516 gctl_error(req, "%s", sbuf_data(sb));
518 sx_xunlock(&sc->sc_lock);
523 g_mirror_ctl_rebuild(struct gctl_req *req, struct g_class *mp)
525 struct g_mirror_metadata md;
526 struct g_mirror_softc *sc;
527 struct g_mirror_disk *disk;
528 struct g_provider *pp;
534 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
536 gctl_error(req, "No '%s' argument.", "nargs");
540 gctl_error(req, "Too few arguments.");
543 name = gctl_get_asciiparam(req, "arg0");
545 gctl_error(req, "No 'arg%u' argument.", 0);
548 sc = g_mirror_find_device(mp, name);
550 gctl_error(req, "No such device: %s.", name);
553 for (i = 1; i < (u_int)*nargs; i++) {
554 snprintf(param, sizeof(param), "arg%u", i);
555 name = gctl_get_asciiparam(req, param);
557 gctl_error(req, "No 'arg%u' argument.", i);
560 disk = g_mirror_find_disk(sc, name);
562 gctl_error(req, "No such provider: %s.", name);
565 if (g_mirror_ndisks(sc, G_MIRROR_DISK_STATE_ACTIVE) == 1 &&
566 disk->d_state == G_MIRROR_DISK_STATE_ACTIVE) {
568 * This is the last active disk. There will be nothing
569 * to rebuild it from, so deny this request.
572 "Provider %s is the last active provider in %s.",
573 name, sc->sc_geom->name);
577 * Do rebuild by resetting syncid, disconnecting the disk and
578 * connecting it again.
580 disk->d_sync.ds_syncid = 0;
581 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_NOAUTOSYNC) != 0)
582 disk->d_flags |= G_MIRROR_DISK_FLAG_FORCE_SYNC;
583 g_mirror_update_metadata(disk);
584 pp = disk->d_consumer->provider;
586 error = g_mirror_read_metadata(disk->d_consumer, &md);
588 g_mirror_event_send(disk, G_MIRROR_DISK_STATE_DISCONNECTED,
589 G_MIRROR_EVENT_WAIT);
591 gctl_error(req, "Cannot read metadata from %s.",
595 error = g_mirror_add_disk(sc, pp, &md);
597 gctl_error(req, "Cannot reconnect component %s.",
602 sx_xunlock(&sc->sc_lock);
606 g_mirror_ctl_insert(struct gctl_req *req, struct g_class *mp)
608 struct g_mirror_softc *sc;
609 struct g_mirror_disk *disk;
610 struct g_mirror_metadata md;
611 struct g_provider *pp;
612 struct g_consumer *cp;
618 int error, *nargs, *hardcode, *inactive;
620 struct g_provider *provider;
621 struct g_consumer *consumer;
625 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
627 gctl_error(req, "No '%s' argument.", "nargs");
631 gctl_error(req, "Too few arguments.");
634 priority = gctl_get_paraml(req, "priority", sizeof(*priority));
635 if (priority == NULL) {
636 gctl_error(req, "No '%s' argument.", "priority");
639 inactive = gctl_get_paraml(req, "inactive", sizeof(*inactive));
640 if (inactive == NULL) {
641 gctl_error(req, "No '%s' argument.", "inactive");
644 hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
645 if (hardcode == NULL) {
646 gctl_error(req, "No '%s' argument.", "hardcode");
649 name = gctl_get_asciiparam(req, "arg0");
651 gctl_error(req, "No 'arg%u' argument.", 0);
654 sc = g_mirror_find_launched_device(mp, name, M_WAITOK);
656 gctl_error(req, "No such device: %s.", name);
659 if (g_mirror_ndisks(sc, -1) < sc->sc_ndisks) {
660 gctl_error(req, "Not all disks connected.");
661 sx_xunlock(&sc->sc_lock);
665 disks = g_malloc(sizeof(*disks) * (*nargs), M_WAITOK | M_ZERO);
667 for (i = 1, n = 0; i < (u_int)*nargs; i++) {
668 snprintf(param, sizeof(param), "arg%u", i);
669 pp = gctl_get_provider(req, param);
672 if (g_mirror_find_disk(sc, pp->name) != NULL) {
673 gctl_error(req, "Provider %s already inserted.", pp->name);
676 cp = g_new_consumer(sc->sc_geom);
677 if (g_attach(cp, pp) != 0) {
678 g_destroy_consumer(cp);
679 gctl_error(req, "Cannot attach to provider %s.", pp->name);
682 if (g_access(cp, 0, 1, 1) != 0) {
683 gctl_error(req, "Cannot access provider %s.", pp->name);
686 g_destroy_consumer(cp);
689 mdsize = (sc->sc_type == G_MIRROR_TYPE_AUTOMATIC) ?
691 if (sc->sc_provider->mediasize > pp->mediasize - mdsize) {
692 gctl_error(req, "Provider %s too small.", pp->name);
694 g_access(cp, 0, -1, -1);
697 if ((sc->sc_provider->sectorsize % pp->sectorsize) != 0) {
698 gctl_error(req, "Invalid sectorsize of provider %s.",
702 if (sc->sc_type != G_MIRROR_TYPE_AUTOMATIC) {
703 g_access(cp, 0, -1, -1);
705 g_destroy_consumer(cp);
708 g_mirror_fill_metadata(sc, NULL, &md);
709 md.md_priority = *priority;
711 md.md_dflags |= G_MIRROR_DISK_FLAG_INACTIVE;
712 if (g_mirror_add_disk(sc, pp, &md) != 0) {
714 gctl_error(req, "Disk %s not inserted.", pp->name);
719 disks[n].provider = pp;
720 disks[n].consumer = cp;
725 sx_xunlock(&sc->sc_lock);
731 for (i = 0; i < n; i++) {
732 if (disks[i].consumer == NULL)
734 g_mirror_fill_metadata(sc, NULL, &md);
735 md.md_priority = *priority;
737 md.md_dflags |= G_MIRROR_DISK_FLAG_INACTIVE;
738 pp = disks[i].provider;
740 strlcpy(md.md_provider, pp->name,
741 sizeof(md.md_provider));
743 bzero(md.md_provider, sizeof(md.md_provider));
745 md.md_provsize = pp->mediasize;
746 sector = g_malloc(pp->sectorsize, M_WAITOK);
747 mirror_metadata_encode(&md, sector);
748 error = g_write_data(disks[i].consumer,
749 pp->mediasize - pp->sectorsize, sector, pp->sectorsize);
752 gctl_error(req, "Cannot store metadata on %s.",
754 g_access(disks[i].consumer, 0, -1, -1);
755 g_detach(disks[i].consumer);
756 g_destroy_consumer(disks[i].consumer);
757 disks[i].consumer = NULL;
758 disks[i].provider = NULL;
765 /* All writes failed. */
766 sx_xunlock(&sc->sc_lock);
770 LIST_FOREACH(disk, &sc->sc_disks, d_next) {
771 g_mirror_update_metadata(disk);
774 * Release provider and wait for retaste.
777 for (i = 0; i < n; i++) {
778 if (disks[i].consumer == NULL)
780 g_access(disks[i].consumer, 0, -1, -1);
781 g_detach(disks[i].consumer);
782 g_destroy_consumer(disks[i].consumer);
785 sx_xunlock(&sc->sc_lock);
790 g_mirror_ctl_remove(struct gctl_req *req, struct g_class *mp)
792 struct g_mirror_softc *sc;
793 struct g_mirror_disk *disk;
799 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
801 gctl_error(req, "No '%s' argument.", "nargs");
805 gctl_error(req, "Too few arguments.");
808 name = gctl_get_asciiparam(req, "arg0");
810 gctl_error(req, "No 'arg%u' argument.", 0);
813 sc = g_mirror_find_device(mp, name);
815 gctl_error(req, "No such device: %s.", name);
818 if (g_mirror_ndisks(sc, -1) < sc->sc_ndisks) {
819 sx_xunlock(&sc->sc_lock);
820 gctl_error(req, "Not all disks connected. Try 'forget' command "
824 active = g_mirror_ndisks(sc, G_MIRROR_DISK_STATE_ACTIVE);
825 for (i = 1; i < (u_int)*nargs; i++) {
826 snprintf(param, sizeof(param), "arg%u", i);
827 name = gctl_get_asciiparam(req, param);
829 gctl_error(req, "No 'arg%u' argument.", i);
832 disk = g_mirror_find_disk(sc, name);
834 gctl_error(req, "No such provider: %s.", name);
837 if (disk->d_state == G_MIRROR_DISK_STATE_ACTIVE) {
841 gctl_error(req, "%s: Can't remove the last "
842 "ACTIVE component %s.", sc->sc_geom->name,
847 g_mirror_event_send(disk, G_MIRROR_DISK_STATE_DESTROY,
848 G_MIRROR_EVENT_DONTWAIT);
850 sx_xunlock(&sc->sc_lock);
854 g_mirror_ctl_resize(struct gctl_req *req, struct g_class *mp)
856 struct g_mirror_softc *sc;
857 struct g_mirror_disk *disk;
859 const char *name, *s;
863 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
865 gctl_error(req, "No '%s' argument.", "nargs");
869 gctl_error(req, "Missing device.");
872 name = gctl_get_asciiparam(req, "arg0");
874 gctl_error(req, "No 'arg%u' argument.", 0);
877 s = gctl_get_asciiparam(req, "size");
879 gctl_error(req, "No '%s' argument.", "size");
882 mediasize = strtouq(s, &x, 0);
883 if (*x != '\0' || mediasize == 0) {
884 gctl_error(req, "Invalid '%s' argument.", "size");
887 sc = g_mirror_find_launched_device(mp, name, M_WAITOK);
889 gctl_error(req, "No such device: %s.", name);
892 /* Deny shrinking of an opened provider */
893 if ((g_debugflags & G_F_FOOTSHOOTING) == 0 && sc->sc_provider_open > 0) {
894 if (sc->sc_mediasize > mediasize) {
895 gctl_error(req, "Device %s is busy.",
896 sc->sc_provider->name);
897 sx_xunlock(&sc->sc_lock);
901 LIST_FOREACH(disk, &sc->sc_disks, d_next) {
902 if (mediasize > disk->d_consumer->provider->mediasize -
903 disk->d_consumer->provider->sectorsize) {
904 gctl_error(req, "Provider %s is too small.",
906 sx_xunlock(&sc->sc_lock);
910 /* Update the size. */
911 sc->sc_mediasize = mediasize;
912 LIST_FOREACH(disk, &sc->sc_disks, d_next) {
913 g_mirror_update_metadata(disk);
916 g_resize_provider(sc->sc_provider, mediasize);
918 sx_xunlock(&sc->sc_lock);
922 g_mirror_ctl_deactivate(struct gctl_req *req, struct g_class *mp)
924 struct g_mirror_softc *sc;
925 struct g_mirror_disk *disk;
931 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
933 gctl_error(req, "No '%s' argument.", "nargs");
937 gctl_error(req, "Too few arguments.");
940 name = gctl_get_asciiparam(req, "arg0");
942 gctl_error(req, "No 'arg%u' argument.", 0);
945 sc = g_mirror_find_device(mp, name);
947 gctl_error(req, "No such device: %s.", name);
950 active = g_mirror_ndisks(sc, G_MIRROR_DISK_STATE_ACTIVE);
951 for (i = 1; i < (u_int)*nargs; i++) {
952 snprintf(param, sizeof(param), "arg%u", i);
953 name = gctl_get_asciiparam(req, param);
955 gctl_error(req, "No 'arg%u' argument.", i);
958 disk = g_mirror_find_disk(sc, name);
960 gctl_error(req, "No such provider: %s.", name);
963 if (disk->d_state == G_MIRROR_DISK_STATE_ACTIVE) {
967 gctl_error(req, "%s: Can't deactivate the "
968 "last ACTIVE component %s.",
969 sc->sc_geom->name, name);
973 disk->d_flags |= G_MIRROR_DISK_FLAG_INACTIVE;
974 disk->d_flags &= ~G_MIRROR_DISK_FLAG_FORCE_SYNC;
975 g_mirror_update_metadata(disk);
976 sc->sc_bump_id |= G_MIRROR_BUMP_SYNCID;
977 g_mirror_event_send(disk, G_MIRROR_DISK_STATE_DISCONNECTED,
978 G_MIRROR_EVENT_DONTWAIT);
980 sx_xunlock(&sc->sc_lock);
984 g_mirror_ctl_forget(struct gctl_req *req, struct g_class *mp)
986 struct g_mirror_softc *sc;
987 struct g_mirror_disk *disk;
993 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
995 gctl_error(req, "No '%s' argument.", "nargs");
999 gctl_error(req, "Missing device(s).");
1003 for (i = 0; i < (u_int)*nargs; i++) {
1004 snprintf(param, sizeof(param), "arg%u", i);
1005 name = gctl_get_asciiparam(req, param);
1007 gctl_error(req, "No 'arg%u' argument.", i);
1010 sc = g_mirror_find_device(mp, name);
1012 gctl_error(req, "No such device: %s.", name);
1015 if (g_mirror_ndisks(sc, -1) == sc->sc_ndisks) {
1016 sx_xunlock(&sc->sc_lock);
1018 "All disks connected in %s, skipping.",
1022 sc->sc_ndisks = g_mirror_ndisks(sc, -1);
1023 LIST_FOREACH(disk, &sc->sc_disks, d_next) {
1024 g_mirror_update_metadata(disk);
1026 sx_xunlock(&sc->sc_lock);
1031 g_mirror_ctl_stop(struct gctl_req *req, struct g_class *mp, int wipe)
1033 struct g_mirror_softc *sc;
1034 int *force, *nargs, error;
1040 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
1041 if (nargs == NULL) {
1042 gctl_error(req, "No '%s' argument.", "nargs");
1046 gctl_error(req, "Missing device(s).");
1049 force = gctl_get_paraml(req, "force", sizeof(*force));
1050 if (force == NULL) {
1051 gctl_error(req, "No '%s' argument.", "force");
1055 how = G_MIRROR_DESTROY_HARD;
1057 how = G_MIRROR_DESTROY_SOFT;
1059 for (i = 0; i < (u_int)*nargs; i++) {
1060 snprintf(param, sizeof(param), "arg%u", i);
1061 name = gctl_get_asciiparam(req, param);
1063 gctl_error(req, "No 'arg%u' argument.", i);
1066 sc = g_mirror_find_device(mp, name);
1068 gctl_error(req, "No such device: %s.", name);
1073 sc->sc_flags |= G_MIRROR_DEVICE_FLAG_WIPE;
1074 error = g_mirror_destroy(sc, how);
1076 gctl_error(req, "Cannot destroy device %s (error=%d).",
1077 sc->sc_geom->name, error);
1079 sc->sc_flags &= ~G_MIRROR_DEVICE_FLAG_WIPE;
1080 sx_xunlock(&sc->sc_lock);
1083 /* No need to unlock, because lock is already dead. */
1088 g_mirror_config(struct gctl_req *req, struct g_class *mp, const char *verb)
1092 g_topology_assert();
1094 version = gctl_get_paraml(req, "version", sizeof(*version));
1095 if (version == NULL) {
1096 gctl_error(req, "No '%s' argument.", "version");
1099 if (*version != G_MIRROR_VERSION) {
1100 gctl_error(req, "Userland and kernel parts are out of sync.");
1104 g_topology_unlock();
1105 if (strcmp(verb, "configure") == 0)
1106 g_mirror_ctl_configure(req, mp);
1107 else if (strcmp(verb, "create") == 0)
1108 g_mirror_ctl_create(req, mp);
1109 else if (strcmp(verb, "rebuild") == 0)
1110 g_mirror_ctl_rebuild(req, mp);
1111 else if (strcmp(verb, "insert") == 0)
1112 g_mirror_ctl_insert(req, mp);
1113 else if (strcmp(verb, "remove") == 0)
1114 g_mirror_ctl_remove(req, mp);
1115 else if (strcmp(verb, "resize") == 0)
1116 g_mirror_ctl_resize(req, mp);
1117 else if (strcmp(verb, "deactivate") == 0)
1118 g_mirror_ctl_deactivate(req, mp);
1119 else if (strcmp(verb, "forget") == 0)
1120 g_mirror_ctl_forget(req, mp);
1121 else if (strcmp(verb, "stop") == 0)
1122 g_mirror_ctl_stop(req, mp, 0);
1123 else if (strcmp(verb, "destroy") == 0)
1124 g_mirror_ctl_stop(req, mp, 1);
1126 gctl_error(req, "Unknown verb.");