1/*-
2 * Copyright (c) 2002 Poul-Henning Kamp
3 * Copyright (c) 2002 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7 * and NAI Labs, the Security Research Division of Network Associates, Inc.
8 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
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29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <sys/cdefs.h>
37__FBSDID("$FreeBSD: head/sys/geom/geom_disk.c 237518 2012-06-24 04:29:03Z ken $");
38
39#include "opt_geom.h"
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/kernel.h>
44#include <sys/sysctl.h>
45#include <sys/bio.h>
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70static struct mtx g_disk_done_mtx;
71
72static g_access_t g_disk_access;
73static g_init_t g_disk_init;
74static g_fini_t g_disk_fini;
75static g_start_t g_disk_start;
76static g_ioctl_t g_disk_ioctl;
77static g_dumpconf_t g_disk_dumpconf;
78static g_provgone_t g_disk_providergone;
79
80static struct g_class g_disk_class = {
81 .name = "DISK",
82 .version = G_VERSION,
83 .init = g_disk_init,
84 .fini = g_disk_fini,
85 .start = g_disk_start,
86 .access = g_disk_access,
87 .ioctl = g_disk_ioctl,
88 .providergone = g_disk_providergone,
89 .dumpconf = g_disk_dumpconf,
90};
91
92SYSCTL_DECL(_kern_geom);
93static SYSCTL_NODE(_kern_geom, OID_AUTO, disk, CTLFLAG_RW, 0,
94 "GEOM_DISK stuff");
95
96static void
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484 CTLFLAG_RW | CTLFLAG_TUN, sc->led, sizeof(sc->led),
485 "LED name");
486 }
487 pp->private = sc;
488 dp->d_geom = gp;
489 g_error_provider(pp, 0);
490}
491
492/*
493 * We get this callback after all of the consumers have gone away, and just
494 * before the provider is freed. If the disk driver provided a d_gone
495 * callback, let them know that it is okay to free resources -- they won't
496 * be getting any more accesses from GEOM.
497 */
498static void
499g_disk_providergone(struct g_provider *pp)
500{
501 struct disk *dp;
502 struct g_disk_softc *sc;
503
504 sc = (struct g_disk_softc *)pp->geom->softc;
505 dp = sc->dp;
506
507 if (dp->d_gone != NULL)
508 dp->d_gone(dp);
509}
510
511static void
512g_disk_destroy(void *ptr, int flag)
513{
514 struct disk *dp;
515 struct g_geom *gp;
516 struct g_disk_softc *sc;
517
518 g_topology_assert();
519 dp = ptr;
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566
567 return (g_malloc(sizeof(struct disk), M_WAITOK | M_ZERO));
568}
569
570void
571disk_create(struct disk *dp, int version)
572{
573
574 if (version != DISK_VERSION_02) {
575 printf("WARNING: Attempt to add disk %s%d %s",
576 dp->d_name, dp->d_unit,
577 " using incompatible ABI version of disk(9)\n");
578 printf("WARNING: Ignoring disk %s%d\n",
579 dp->d_name, dp->d_unit);
580 return;
581 }
582 KASSERT(dp->d_strategy != NULL, ("disk_create need d_strategy"));
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2 * Copyright (c) 2002 Poul-Henning Kamp
3 * Copyright (c) 2002 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7 * and NAI Labs, the Security Research Division of Network Associates, Inc.
8 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
--- 20 unchanged lines hidden (view full) ---
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <sys/cdefs.h>
37__FBSDID("$FreeBSD: head/sys/geom/geom_disk.c 237518 2012-06-24 04:29:03Z ken $");
38
39#include "opt_geom.h"
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/kernel.h>
44#include <sys/sysctl.h>
45#include <sys/bio.h>
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70static struct mtx g_disk_done_mtx;
71
72static g_access_t g_disk_access;
73static g_init_t g_disk_init;
74static g_fini_t g_disk_fini;
75static g_start_t g_disk_start;
76static g_ioctl_t g_disk_ioctl;
77static g_dumpconf_t g_disk_dumpconf;
78static g_provgone_t g_disk_providergone;
79
80static struct g_class g_disk_class = {
81 .name = "DISK",
82 .version = G_VERSION,
83 .init = g_disk_init,
84 .fini = g_disk_fini,
85 .start = g_disk_start,
86 .access = g_disk_access,
87 .ioctl = g_disk_ioctl,
88 .providergone = g_disk_providergone,
89 .dumpconf = g_disk_dumpconf,
90};
91
92SYSCTL_DECL(_kern_geom);
93static SYSCTL_NODE(_kern_geom, OID_AUTO, disk, CTLFLAG_RW, 0,
94 "GEOM_DISK stuff");
95
96static void
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484 CTLFLAG_RW | CTLFLAG_TUN, sc->led, sizeof(sc->led),
485 "LED name");
486 }
487 pp->private = sc;
488 dp->d_geom = gp;
489 g_error_provider(pp, 0);
490}
491
492/*
493 * We get this callback after all of the consumers have gone away, and just
494 * before the provider is freed. If the disk driver provided a d_gone
495 * callback, let them know that it is okay to free resources -- they won't
496 * be getting any more accesses from GEOM.
497 */
498static void
499g_disk_providergone(struct g_provider *pp)
500{
501 struct disk *dp;
502 struct g_disk_softc *sc;
503
504 sc = (struct g_disk_softc *)pp->geom->softc;
505 dp = sc->dp;
506
507 if (dp->d_gone != NULL)
508 dp->d_gone(dp);
509}
510
511static void
512g_disk_destroy(void *ptr, int flag)
513{
514 struct disk *dp;
515 struct g_geom *gp;
516 struct g_disk_softc *sc;
517
518 g_topology_assert();
519 dp = ptr;
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566
567 return (g_malloc(sizeof(struct disk), M_WAITOK | M_ZERO));
568}
569
570void
571disk_create(struct disk *dp, int version)
572{
573
574 if (version != DISK_VERSION_02) {
575 printf("WARNING: Attempt to add disk %s%d %s",
576 dp->d_name, dp->d_unit,
577 " using incompatible ABI version of disk(9)\n");
578 printf("WARNING: Ignoring disk %s%d\n",
579 dp->d_name, dp->d_unit);
580 return;
581 }
582 KASSERT(dp->d_strategy != NULL, ("disk_create need d_strategy"));
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