6871a543f9
provider name to be specified instead of geom name (first argument in all subcommands except label). In most cases there is only one array used any way, so it is not really useful to make user type ugly geom names like Intel-f0bdf223 or SiI-732c2b9448cf. Though they can be used in some cases. Sponsored by: iXsystems, Inc. MFC after: 1 month
250 lines
6.4 KiB
C
250 lines
6.4 KiB
C
/*-
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* Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/bio.h>
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#include <sys/sysctl.h>
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#include <sys/malloc.h>
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#include <sys/bitstring.h>
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#include <vm/uma.h>
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#include <machine/atomic.h>
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#include <geom/geom.h>
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#include <sys/proc.h>
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#include <sys/kthread.h>
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#include <geom/raid/g_raid.h>
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#include "g_raid_md_if.h"
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static struct g_raid_softc *
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g_raid_find_node(struct g_class *mp, const char *name)
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{
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struct g_raid_softc *sc;
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struct g_geom *gp;
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struct g_provider *pp;
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struct g_raid_volume *vol;
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/* Look for geom with specified name. */
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LIST_FOREACH(gp, &mp->geom, geom) {
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sc = gp->softc;
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if (sc == NULL)
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continue;
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if (sc->sc_stopping != 0)
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continue;
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if (strcasecmp(sc->sc_name, name) == 0)
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return (sc);
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}
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/* Look for provider with specified name. */
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LIST_FOREACH(gp, &mp->geom, geom) {
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sc = gp->softc;
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if (sc == NULL)
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continue;
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if (sc->sc_stopping != 0)
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continue;
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LIST_FOREACH(pp, &gp->provider, provider) {
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if (strcmp(pp->name, name) == 0)
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return (sc);
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if (strncmp(pp->name, "raid/", 5) == 0 &&
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strcmp(pp->name + 5, name) == 0)
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return (sc);
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}
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}
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/* Look for volume with specified name. */
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LIST_FOREACH(gp, &mp->geom, geom) {
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sc = gp->softc;
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if (sc == NULL)
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continue;
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if (sc->sc_stopping != 0)
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continue;
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TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
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if (strcmp(vol->v_name, name) == 0)
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return (sc);
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}
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}
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return (NULL);
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}
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static void
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g_raid_ctl_label(struct gctl_req *req, struct g_class *mp)
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{
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struct g_geom *geom;
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struct g_raid_softc *sc;
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const char *format;
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int *nargs;
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int crstatus, ctlstatus;
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char buf[64];
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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return;
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}
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if (*nargs < 4) {
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gctl_error(req, "Invalid number of arguments.");
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return;
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}
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format = gctl_get_asciiparam(req, "arg0");
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if (format == NULL) {
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gctl_error(req, "No format recieved.");
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return;
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}
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crstatus = g_raid_create_node_format(format, req, &geom);
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if (crstatus == G_RAID_MD_TASTE_FAIL) {
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gctl_error(req, "Failed to create array with format '%s'.",
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format);
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return;
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}
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sc = (struct g_raid_softc *)geom->softc;
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g_topology_unlock();
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sx_xlock(&sc->sc_lock);
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ctlstatus = G_RAID_MD_CTL(sc->sc_md, req);
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if (ctlstatus < 0) {
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gctl_error(req, "Command failed: %d.", ctlstatus);
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if (crstatus == G_RAID_MD_TASTE_NEW)
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g_raid_destroy_node(sc, 0);
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} else {
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if (crstatus == G_RAID_MD_TASTE_NEW)
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snprintf(buf, sizeof(buf), "%s created\n", sc->sc_name);
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else
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snprintf(buf, sizeof(buf), "%s reused\n", sc->sc_name);
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gctl_set_param_err(req, "output", buf, strlen(buf) + 1);
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}
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sx_xunlock(&sc->sc_lock);
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g_topology_lock();
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}
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static void
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g_raid_ctl_stop(struct gctl_req *req, struct g_class *mp)
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{
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struct g_raid_softc *sc;
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const char *nodename;
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int *nargs, *force;
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int error, how;
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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return;
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}
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if (*nargs != 1) {
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gctl_error(req, "Invalid number of arguments.");
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return;
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}
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nodename = gctl_get_asciiparam(req, "arg0");
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if (nodename == NULL) {
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gctl_error(req, "No array name recieved.");
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return;
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}
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sc = g_raid_find_node(mp, nodename);
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if (sc == NULL) {
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gctl_error(req, "Array '%s' not found.", nodename);
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return;
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}
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force = gctl_get_paraml(req, "force", sizeof(*force));
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if (force != NULL && *force)
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how = G_RAID_DESTROY_HARD;
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else
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how = G_RAID_DESTROY_SOFT;
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g_topology_unlock();
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sx_xlock(&sc->sc_lock);
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error = g_raid_destroy(sc, how);
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if (error != 0)
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sx_xunlock(&sc->sc_lock);
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g_topology_lock();
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}
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static void
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g_raid_ctl_other(struct gctl_req *req, struct g_class *mp)
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{
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struct g_raid_softc *sc;
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const char *nodename;
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int *nargs;
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int ctlstatus;
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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return;
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}
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if (*nargs < 1) {
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gctl_error(req, "Invalid number of arguments.");
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return;
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}
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nodename = gctl_get_asciiparam(req, "arg0");
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if (nodename == NULL) {
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gctl_error(req, "No array name recieved.");
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return;
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}
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sc = g_raid_find_node(mp, nodename);
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if (sc == NULL) {
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gctl_error(req, "Array '%s' not found.", nodename);
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return;
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}
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g_topology_unlock();
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sx_xlock(&sc->sc_lock);
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if (sc->sc_md != NULL) {
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ctlstatus = G_RAID_MD_CTL(sc->sc_md, req);
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if (ctlstatus < 0)
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gctl_error(req, "Command failed: %d.", ctlstatus);
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}
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sx_xunlock(&sc->sc_lock);
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g_topology_lock();
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}
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void
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g_raid_ctl(struct gctl_req *req, struct g_class *mp, const char *verb)
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{
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uint32_t *version;
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g_topology_assert();
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version = gctl_get_paraml(req, "version", sizeof(*version));
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if (version == NULL) {
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gctl_error(req, "No '%s' argument.", "version");
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return;
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}
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if (*version != G_RAID_VERSION) {
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gctl_error(req, "Userland and kernel parts are out of sync.");
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return;
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}
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if (strcmp(verb, "label") == 0)
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g_raid_ctl_label(req, mp);
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else if (strcmp(verb, "stop") == 0)
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g_raid_ctl_stop(req, mp);
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else
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g_raid_ctl_other(req, mp);
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}
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