1dd84a43cSPoul-Henning Kamp /*- 2dd84a43cSPoul-Henning Kamp * Copyright (c) 2002 Poul-Henning Kamp 3dd84a43cSPoul-Henning Kamp * Copyright (c) 2002 Networks Associates Technology, Inc. 4dd84a43cSPoul-Henning Kamp * All rights reserved. 5dd84a43cSPoul-Henning Kamp * 6dd84a43cSPoul-Henning Kamp * This software was developed for the FreeBSD Project by Poul-Henning Kamp 7dd84a43cSPoul-Henning Kamp * and NAI Labs, the Security Research Division of Network Associates, Inc. 8dd84a43cSPoul-Henning Kamp * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 9dd84a43cSPoul-Henning Kamp * DARPA CHATS research program. 10dd84a43cSPoul-Henning Kamp * 11dd84a43cSPoul-Henning Kamp * Redistribution and use in source and binary forms, with or without 12dd84a43cSPoul-Henning Kamp * modification, are permitted provided that the following conditions 13dd84a43cSPoul-Henning Kamp * are met: 14dd84a43cSPoul-Henning Kamp * 1. Redistributions of source code must retain the above copyright 15dd84a43cSPoul-Henning Kamp * notice, this list of conditions and the following disclaimer. 16dd84a43cSPoul-Henning Kamp * 2. Redistributions in binary form must reproduce the above copyright 17dd84a43cSPoul-Henning Kamp * notice, this list of conditions and the following disclaimer in the 18dd84a43cSPoul-Henning Kamp * documentation and/or other materials provided with the distribution. 19dd84a43cSPoul-Henning Kamp * 3. The names of the authors may not be used to endorse or promote 20dd84a43cSPoul-Henning Kamp * products derived from this software without specific prior written 21dd84a43cSPoul-Henning Kamp * permission. 22dd84a43cSPoul-Henning Kamp * 23dd84a43cSPoul-Henning Kamp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24dd84a43cSPoul-Henning Kamp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25dd84a43cSPoul-Henning Kamp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26dd84a43cSPoul-Henning Kamp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27dd84a43cSPoul-Henning Kamp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28dd84a43cSPoul-Henning Kamp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29dd84a43cSPoul-Henning Kamp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30dd84a43cSPoul-Henning Kamp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31dd84a43cSPoul-Henning Kamp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32dd84a43cSPoul-Henning Kamp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33dd84a43cSPoul-Henning Kamp * SUCH DAMAGE. 34dd84a43cSPoul-Henning Kamp * 35dd84a43cSPoul-Henning Kamp * $FreeBSD$ 36dd84a43cSPoul-Henning Kamp */ 37dd84a43cSPoul-Henning Kamp 383bd65612SPoul-Henning Kamp #include "opt_geom.h" 393bd65612SPoul-Henning Kamp 40dd84a43cSPoul-Henning Kamp #include <sys/param.h> 41dd84a43cSPoul-Henning Kamp #include <sys/systm.h> 42dd84a43cSPoul-Henning Kamp #include <sys/kernel.h> 43dd84a43cSPoul-Henning Kamp #include <sys/sysctl.h> 44dd84a43cSPoul-Henning Kamp #include <sys/bio.h> 45dd84a43cSPoul-Henning Kamp #include <sys/conf.h> 46dd84a43cSPoul-Henning Kamp #include <sys/disk.h> 4731a1093fSPoul-Henning Kamp #include <sys/fcntl.h> 48dd84a43cSPoul-Henning Kamp #include <sys/malloc.h> 49dd84a43cSPoul-Henning Kamp #include <sys/sysctl.h> 5060794e04SPoul-Henning Kamp #include <sys/devicestat.h> 51dd84a43cSPoul-Henning Kamp #include <machine/md_var.h> 52dd84a43cSPoul-Henning Kamp 53dd84a43cSPoul-Henning Kamp #include <sys/lock.h> 54dd84a43cSPoul-Henning Kamp #include <sys/mutex.h> 55dd84a43cSPoul-Henning Kamp #include <geom/geom.h> 567da1ebfdSPoul-Henning Kamp #include <geom/geom_int.h> 57dd84a43cSPoul-Henning Kamp 5815c672a3SPoul-Henning Kamp static struct mtx g_disk_done_mtx; 5915c672a3SPoul-Henning Kamp 60dd84a43cSPoul-Henning Kamp static g_access_t g_disk_access; 61dd84a43cSPoul-Henning Kamp 62e805e8f0SPoul-Henning Kamp struct g_class g_disk_class = { 633abe4a80SPoul-Henning Kamp "DISK", 64dd84a43cSPoul-Henning Kamp NULL, 65dd84a43cSPoul-Henning Kamp NULL, 66503abe45SPoul-Henning Kamp G_CLASS_INITIALIZER 67dd84a43cSPoul-Henning Kamp }; 68dd84a43cSPoul-Henning Kamp 6915c672a3SPoul-Henning Kamp static void 7015c672a3SPoul-Henning Kamp g_disk_init(void) 7115c672a3SPoul-Henning Kamp { 7215c672a3SPoul-Henning Kamp mtx_unlock(&Giant); 7315c672a3SPoul-Henning Kamp g_add_class(&g_disk_class); 7415c672a3SPoul-Henning Kamp mtx_init(&g_disk_done_mtx, "g_disk_done", MTX_DEF, 0); 7515c672a3SPoul-Henning Kamp mtx_lock(&Giant); 7615c672a3SPoul-Henning Kamp } 7715c672a3SPoul-Henning Kamp 7815c672a3SPoul-Henning Kamp DECLARE_GEOM_CLASS_INIT(g_disk_class, g_disk, g_disk_init); 798523987bSPoul-Henning Kamp 805a67919aSPoul-Henning Kamp static void __inline 815a67919aSPoul-Henning Kamp g_disk_lock_giant(struct disk *dp) 825a67919aSPoul-Henning Kamp { 8331a1093fSPoul-Henning Kamp if (dp->d_flags & DISKFLAG_NOGIANT) 8431a1093fSPoul-Henning Kamp return; 855a67919aSPoul-Henning Kamp mtx_lock(&Giant); 865a67919aSPoul-Henning Kamp } 875a67919aSPoul-Henning Kamp 885a67919aSPoul-Henning Kamp static void __inline 895a67919aSPoul-Henning Kamp g_disk_unlock_giant(struct disk *dp) 905a67919aSPoul-Henning Kamp { 9131a1093fSPoul-Henning Kamp if (dp->d_flags & DISKFLAG_NOGIANT) 9231a1093fSPoul-Henning Kamp return; 935a67919aSPoul-Henning Kamp mtx_unlock(&Giant); 945a67919aSPoul-Henning Kamp } 955a67919aSPoul-Henning Kamp 96dd84a43cSPoul-Henning Kamp static int 97dd84a43cSPoul-Henning Kamp g_disk_access(struct g_provider *pp, int r, int w, int e) 98dd84a43cSPoul-Henning Kamp { 99dd84a43cSPoul-Henning Kamp struct disk *dp; 100dd84a43cSPoul-Henning Kamp int error; 101dd84a43cSPoul-Henning Kamp 102dd84a43cSPoul-Henning Kamp g_trace(G_T_ACCESS, "g_disk_access(%s, %d, %d, %d)", 103dd84a43cSPoul-Henning Kamp pp->name, r, w, e); 104dd84a43cSPoul-Henning Kamp g_topology_assert(); 105dd84a43cSPoul-Henning Kamp r += pp->acr; 106dd84a43cSPoul-Henning Kamp w += pp->acw; 107dd84a43cSPoul-Henning Kamp e += pp->ace; 108dd84a43cSPoul-Henning Kamp dp = pp->geom->softc; 10931a1093fSPoul-Henning Kamp error = 0; 110dd84a43cSPoul-Henning Kamp if ((pp->acr + pp->acw + pp->ace) == 0 && (r + w + e) > 0) { 11198bbd7aaSPoul-Henning Kamp if (dp->d_open != NULL) { 1125a67919aSPoul-Henning Kamp g_disk_lock_giant(dp); 11351dd8980SPoul-Henning Kamp error = dp->d_open(dp); 114dd84a43cSPoul-Henning Kamp if (error != 0) 11531a1093fSPoul-Henning Kamp printf("Opened disk %s -> %d\n", 11631a1093fSPoul-Henning Kamp pp->name, error); 1175a67919aSPoul-Henning Kamp g_disk_unlock_giant(dp); 11831a1093fSPoul-Henning Kamp } 1193f12caa1SPoul-Henning Kamp pp->mediasize = dp->d_mediasize; 1203f12caa1SPoul-Henning Kamp pp->sectorsize = dp->d_sectorsize; 12131a1093fSPoul-Henning Kamp dp->d_flags |= DISKFLAG_OPEN; 12299af707cSPoul-Henning Kamp if (dp->d_maxsize == 0) { 12399af707cSPoul-Henning Kamp printf("WARNING: Disk drive %s%d has no d_maxsize\n", 12499af707cSPoul-Henning Kamp dp->d_name, dp->d_unit); 12599af707cSPoul-Henning Kamp dp->d_maxsize = DFLTPHYS; 12699af707cSPoul-Henning Kamp } 127dd84a43cSPoul-Henning Kamp } else if ((pp->acr + pp->acw + pp->ace) > 0 && (r + w + e) == 0) { 12898bbd7aaSPoul-Henning Kamp if (dp->d_close != NULL) { 1295a67919aSPoul-Henning Kamp g_disk_lock_giant(dp); 13051dd8980SPoul-Henning Kamp error = dp->d_close(dp); 131dd84a43cSPoul-Henning Kamp if (error != 0) 13231a1093fSPoul-Henning Kamp printf("Closed disk %s -> %d\n", 13331a1093fSPoul-Henning Kamp pp->name, error); 1345a67919aSPoul-Henning Kamp g_disk_unlock_giant(dp); 13531a1093fSPoul-Henning Kamp } 13631a1093fSPoul-Henning Kamp dp->d_flags &= ~DISKFLAG_OPEN; 137dd84a43cSPoul-Henning Kamp } 138dd84a43cSPoul-Henning Kamp return (error); 139dd84a43cSPoul-Henning Kamp } 140dd84a43cSPoul-Henning Kamp 141dd84a43cSPoul-Henning Kamp static void 14295c24b31SPoul-Henning Kamp g_disk_kerneldump(struct bio *bp, struct disk *dp) 14395c24b31SPoul-Henning Kamp { 14495c24b31SPoul-Henning Kamp int error; 14595c24b31SPoul-Henning Kamp struct g_kerneldump *gkd; 14695c24b31SPoul-Henning Kamp struct dumperinfo di; 1478be2bc5cSPoul-Henning Kamp struct g_geom *gp; 14895c24b31SPoul-Henning Kamp 14995c24b31SPoul-Henning Kamp gkd = (struct g_kerneldump*)bp->bio_data; 1508be2bc5cSPoul-Henning Kamp gp = bp->bio_to->geom; 1518be2bc5cSPoul-Henning Kamp g_trace(G_T_TOPOLOGY, "g_disk_kernedump(%s, %jd, %jd)", 1528be2bc5cSPoul-Henning Kamp gp->name, (intmax_t)gkd->offset, (intmax_t)gkd->length); 15331a1093fSPoul-Henning Kamp di.dumper = dp->d_dump; 1542c6b49f6SPoul-Henning Kamp di.priv = dp; 1557812d86fSPoul-Henning Kamp di.blocksize = dp->d_sectorsize; 15695c24b31SPoul-Henning Kamp di.mediaoffset = gkd->offset; 15795c24b31SPoul-Henning Kamp di.mediasize = gkd->length; 15895c24b31SPoul-Henning Kamp error = set_dumper(&di); 15972840432SPoul-Henning Kamp g_io_deliver(bp, error); 16095c24b31SPoul-Henning Kamp } 16195c24b31SPoul-Henning Kamp 16295c24b31SPoul-Henning Kamp static void 163dd84a43cSPoul-Henning Kamp g_disk_done(struct bio *bp) 164dd84a43cSPoul-Henning Kamp { 16560794e04SPoul-Henning Kamp struct bio *bp2; 16660794e04SPoul-Henning Kamp struct disk *dp; 167dd84a43cSPoul-Henning Kamp 16815c672a3SPoul-Henning Kamp /* See "notes" for why we need a mutex here */ 16915c672a3SPoul-Henning Kamp /* XXX: will witness accept a mix of Giant/unGiant drivers here ? */ 17015c672a3SPoul-Henning Kamp mtx_lock(&g_disk_done_mtx); 171ae2afc43SPoul-Henning Kamp bp->bio_completed = bp->bio_length - bp->bio_resid; 17260794e04SPoul-Henning Kamp 17360794e04SPoul-Henning Kamp bp2 = bp->bio_parent; 17460794e04SPoul-Henning Kamp dp = bp2->bio_to->geom->softc; 17560794e04SPoul-Henning Kamp if (bp2->bio_error == 0) 17660794e04SPoul-Henning Kamp bp2->bio_error = bp->bio_error; 17760794e04SPoul-Henning Kamp bp2->bio_completed += bp->bio_completed; 17860794e04SPoul-Henning Kamp g_destroy_bio(bp); 17960794e04SPoul-Henning Kamp bp2->bio_inbed++; 18060794e04SPoul-Henning Kamp if (bp2->bio_children == bp2->bio_inbed) { 18181876757SPoul-Henning Kamp bp2->bio_resid = bp2->bio_bcount - bp2->bio_completed; 18281876757SPoul-Henning Kamp devstat_end_transaction_bio(dp->d_devstat, bp2); 18360794e04SPoul-Henning Kamp g_io_deliver(bp2, bp2->bio_error); 18460794e04SPoul-Henning Kamp } 18515c672a3SPoul-Henning Kamp mtx_unlock(&g_disk_done_mtx); 186dd84a43cSPoul-Henning Kamp } 187dd84a43cSPoul-Henning Kamp 188dd84a43cSPoul-Henning Kamp static void 189dd84a43cSPoul-Henning Kamp g_disk_start(struct bio *bp) 190dd84a43cSPoul-Henning Kamp { 19115c672a3SPoul-Henning Kamp struct bio *bp2, *bp3; 192dd84a43cSPoul-Henning Kamp struct disk *dp; 193a5b2e75dSPoul-Henning Kamp struct g_ioctl *gio; 194a5b2e75dSPoul-Henning Kamp int error; 19515c672a3SPoul-Henning Kamp off_t off; 196dd84a43cSPoul-Henning Kamp 197dd84a43cSPoul-Henning Kamp dp = bp->bio_to->geom->softc; 198b362694cSPoul-Henning Kamp error = EJUSTRETURN; 199dd84a43cSPoul-Henning Kamp switch(bp->bio_cmd) { 200b362694cSPoul-Henning Kamp case BIO_DELETE: 20131a1093fSPoul-Henning Kamp if (!(dp->d_flags & DISKFLAG_CANDELETE)) { 202b362694cSPoul-Henning Kamp error = 0; 203b362694cSPoul-Henning Kamp break; 204b362694cSPoul-Henning Kamp } 205b362694cSPoul-Henning Kamp /* fall-through */ 206dd84a43cSPoul-Henning Kamp case BIO_READ: 207dd84a43cSPoul-Henning Kamp case BIO_WRITE: 20815c672a3SPoul-Henning Kamp off = 0; 20915c672a3SPoul-Henning Kamp bp3 = NULL; 210dd84a43cSPoul-Henning Kamp bp2 = g_clone_bio(bp); 211a4210653SPoul-Henning Kamp if (bp2 == NULL) { 212a4210653SPoul-Henning Kamp error = ENOMEM; 213a4210653SPoul-Henning Kamp break; 214a4210653SPoul-Henning Kamp } 21581876757SPoul-Henning Kamp devstat_start_transaction_bio(dp->d_devstat, bp); 21615c672a3SPoul-Henning Kamp do { 21715c672a3SPoul-Henning Kamp bp2->bio_offset += off; 21815c672a3SPoul-Henning Kamp bp2->bio_length -= off; 21996365d3dSTor Egge bp2->bio_data += off; 22015c672a3SPoul-Henning Kamp if (bp2->bio_length > dp->d_maxsize) { 22115c672a3SPoul-Henning Kamp /* 22215c672a3SPoul-Henning Kamp * XXX: If we have a stripesize we should really 22315c672a3SPoul-Henning Kamp * use it here. 22415c672a3SPoul-Henning Kamp */ 22515c672a3SPoul-Henning Kamp bp2->bio_length = dp->d_maxsize; 22615c672a3SPoul-Henning Kamp off += dp->d_maxsize; 22715c672a3SPoul-Henning Kamp /* 22815c672a3SPoul-Henning Kamp * To avoid a race, we need to grab the next bio 22915c672a3SPoul-Henning Kamp * before we schedule this one. See "notes". 23015c672a3SPoul-Henning Kamp */ 23115c672a3SPoul-Henning Kamp bp3 = g_clone_bio(bp); 23215c672a3SPoul-Henning Kamp if (bp3 == NULL) 23315c672a3SPoul-Henning Kamp bp->bio_error = ENOMEM; 23415c672a3SPoul-Henning Kamp } 235dd84a43cSPoul-Henning Kamp bp2->bio_done = g_disk_done; 236dd84a43cSPoul-Henning Kamp bp2->bio_blkno = bp2->bio_offset >> DEV_BSHIFT; 237b362694cSPoul-Henning Kamp bp2->bio_pblkno = bp2->bio_offset / dp->d_sectorsize; 238dd84a43cSPoul-Henning Kamp bp2->bio_bcount = bp2->bio_length; 239ffa91881SPoul-Henning Kamp bp2->bio_disk = dp; 2405a67919aSPoul-Henning Kamp g_disk_lock_giant(dp); 24131a1093fSPoul-Henning Kamp dp->d_strategy(bp2); 2425a67919aSPoul-Henning Kamp g_disk_unlock_giant(dp); 24315c672a3SPoul-Henning Kamp bp2 = bp3; 24415c672a3SPoul-Henning Kamp bp3 = NULL; 24515c672a3SPoul-Henning Kamp } while (bp2 != NULL); 246dd84a43cSPoul-Henning Kamp break; 247dd84a43cSPoul-Henning Kamp case BIO_GETATTR: 2483f12caa1SPoul-Henning Kamp if (g_handleattr_int(bp, "GEOM::fwsectors", dp->d_fwsectors)) 249a5b2e75dSPoul-Henning Kamp break; 2507812d86fSPoul-Henning Kamp else if (g_handleattr_int(bp, "GEOM::fwheads", dp->d_fwheads)) 251a5b2e75dSPoul-Henning Kamp break; 252503abe45SPoul-Henning Kamp else if (g_handleattr_off_t(bp, "GEOM::frontstuff", 0)) 2531bdb20a6SPoul-Henning Kamp break; 25495c24b31SPoul-Henning Kamp else if (!strcmp(bp->bio_attribute, "GEOM::kerneldump")) 25595c24b31SPoul-Henning Kamp g_disk_kerneldump(bp, dp); 2567da1ebfdSPoul-Henning Kamp else if ((g_debugflags & G_F_DISKIOCTL) && 2577da1ebfdSPoul-Henning Kamp (dp->d_ioctl != NULL) && 25831a1093fSPoul-Henning Kamp !strcmp(bp->bio_attribute, "GEOM::ioctl") && 259a5b2e75dSPoul-Henning Kamp bp->bio_length == sizeof *gio) { 260adfa3213SPoul-Henning Kamp gio = (struct g_ioctl *)bp->bio_data; 26151dd8980SPoul-Henning Kamp gio->dev = dp; 26298bbd7aaSPoul-Henning Kamp gio->func = (d_ioctl_t *)(dp->d_ioctl); 263adfa3213SPoul-Henning Kamp error = EDIRIOCTL; 264a5b2e75dSPoul-Henning Kamp } else 265a5b2e75dSPoul-Henning Kamp error = ENOIOCTL; 266a5b2e75dSPoul-Henning Kamp break; 2671fc1a1efSPoul-Henning Kamp case BIO_SETATTR: 2681fc1a1efSPoul-Henning Kamp error = ENOIOCTL; 2691fc1a1efSPoul-Henning Kamp break; 270dd84a43cSPoul-Henning Kamp default: 271a5b2e75dSPoul-Henning Kamp error = EOPNOTSUPP; 272a5b2e75dSPoul-Henning Kamp break; 273dd84a43cSPoul-Henning Kamp } 274b362694cSPoul-Henning Kamp if (error != EJUSTRETURN) 27572840432SPoul-Henning Kamp g_io_deliver(bp, error); 276a5b2e75dSPoul-Henning Kamp return; 277dd84a43cSPoul-Henning Kamp } 278dd84a43cSPoul-Henning Kamp 2798523987bSPoul-Henning Kamp static void 2800f9d3dbaSPoul-Henning Kamp g_disk_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, struct g_consumer *cp, struct g_provider *pp) 2818f9628a1SPoul-Henning Kamp { 2828f9628a1SPoul-Henning Kamp struct disk *dp; 2838f9628a1SPoul-Henning Kamp 2848f9628a1SPoul-Henning Kamp dp = gp->softc; 285d518e539SPoul-Henning Kamp if (indent == NULL) { 286d518e539SPoul-Henning Kamp sbuf_printf(sb, " hd %u", dp->d_fwheads); 287d518e539SPoul-Henning Kamp sbuf_printf(sb, " sc %u", dp->d_fwsectors); 288d518e539SPoul-Henning Kamp return; 289d518e539SPoul-Henning Kamp } 2909e2ebaa0SPoul-Henning Kamp if (pp != NULL) { 2918f9628a1SPoul-Henning Kamp sbuf_printf(sb, "%s<fwheads>%u</fwheads>\n", 2928f9628a1SPoul-Henning Kamp indent, dp->d_fwheads); 2938f9628a1SPoul-Henning Kamp sbuf_printf(sb, "%s<fwsectors>%u</fwsectors>\n", 2948f9628a1SPoul-Henning Kamp indent, dp->d_fwsectors); 2958f9628a1SPoul-Henning Kamp } 2968f9628a1SPoul-Henning Kamp } 2978f9628a1SPoul-Henning Kamp 2988f9628a1SPoul-Henning Kamp static void 2998523987bSPoul-Henning Kamp g_disk_create(void *arg) 300dd84a43cSPoul-Henning Kamp { 301dd84a43cSPoul-Henning Kamp struct g_geom *gp; 302dd84a43cSPoul-Henning Kamp struct g_provider *pp; 303bb17c5f6SPoul-Henning Kamp struct disk *dp; 304dd84a43cSPoul-Henning Kamp 3058523987bSPoul-Henning Kamp g_topology_assert(); 306bb17c5f6SPoul-Henning Kamp dp = arg; 307bb17c5f6SPoul-Henning Kamp gp = g_new_geomf(&g_disk_class, "%s%d", dp->d_name, dp->d_unit); 3088523987bSPoul-Henning Kamp gp->start = g_disk_start; 3098523987bSPoul-Henning Kamp gp->access = g_disk_access; 310bb17c5f6SPoul-Henning Kamp gp->softc = dp; 3118f9628a1SPoul-Henning Kamp gp->dumpconf = g_disk_dumpconf; 312bb17c5f6SPoul-Henning Kamp dp->d_geom = gp; 3138523987bSPoul-Henning Kamp pp = g_new_providerf(gp, "%s", gp->name); 314bb17c5f6SPoul-Henning Kamp pp->mediasize = dp->d_mediasize; 315bb17c5f6SPoul-Henning Kamp pp->sectorsize = dp->d_sectorsize; 316bb17c5f6SPoul-Henning Kamp if (dp->d_flags & DISKFLAG_CANDELETE) 317bb17c5f6SPoul-Henning Kamp pp->flags |= G_PF_CANDELETE; 3188a63edc3SPoul-Henning Kamp pp->stripeoffset = dp->d_stripeoffset; 3198a63edc3SPoul-Henning Kamp pp->stripesize = dp->d_stripesize; 3208523987bSPoul-Henning Kamp g_error_provider(pp, 0); 3213d5500fcSPoul-Henning Kamp if (bootverbose) 3223d5500fcSPoul-Henning Kamp printf("GEOM: new disk %s\n", gp->name); 323dd84a43cSPoul-Henning Kamp } 3248523987bSPoul-Henning Kamp 3258523987bSPoul-Henning Kamp 3268523987bSPoul-Henning Kamp 32798bbd7aaSPoul-Henning Kamp void 32898bbd7aaSPoul-Henning Kamp disk_create(int unit, struct disk *dp, int flags, void *unused __unused, void * unused2 __unused) 3298523987bSPoul-Henning Kamp { 3308523987bSPoul-Henning Kamp 331bb17c5f6SPoul-Henning Kamp dp->d_unit = unit; 33231a1093fSPoul-Henning Kamp dp->d_flags = flags; 33331a1093fSPoul-Henning Kamp KASSERT(dp->d_strategy != NULL, ("disk_create need d_strategy")); 33431a1093fSPoul-Henning Kamp KASSERT(dp->d_name != NULL, ("disk_create need d_name")); 33531a1093fSPoul-Henning Kamp KASSERT(*dp->d_name != 0, ("disk_create need d_name")); 336237d2765SPoul-Henning Kamp KASSERT(strlen(dp->d_name) < SPECNAMELEN - 4, ("disk name too long")); 33709f95804SPoul-Henning Kamp dp->d_devstat = devstat_new_entry(dp->d_name, dp->d_unit, 33860794e04SPoul-Henning Kamp dp->d_sectorsize, DEVSTAT_ALL_SUPPORTED, 33960794e04SPoul-Henning Kamp DEVSTAT_TYPE_DIRECT, DEVSTAT_PRIORITY_MAX); 340bb17c5f6SPoul-Henning Kamp g_call_me(g_disk_create, dp); 341dd84a43cSPoul-Henning Kamp } 342dd84a43cSPoul-Henning Kamp 343dd84a43cSPoul-Henning Kamp void 344b82ff758SPoul-Henning Kamp disk_destroy(struct disk *dp) 345dd84a43cSPoul-Henning Kamp { 346dd84a43cSPoul-Henning Kamp struct g_geom *gp; 347dd84a43cSPoul-Henning Kamp 34851dd8980SPoul-Henning Kamp gp = dp->d_geom; 349dd84a43cSPoul-Henning Kamp gp->flags |= G_GEOM_WITHER; 35031a1093fSPoul-Henning Kamp gp->softc = NULL; 351dd84a43cSPoul-Henning Kamp g_orphan_provider(LIST_FIRST(&gp->provider), ENXIO); 35260794e04SPoul-Henning Kamp devstat_remove_entry(dp->d_devstat); 353dd84a43cSPoul-Henning Kamp } 354dd84a43cSPoul-Henning Kamp 3550cc3011dSPoul-Henning Kamp static void 3560cc3011dSPoul-Henning Kamp g_kern_disks(void *p) 3570cc3011dSPoul-Henning Kamp { 3580cc3011dSPoul-Henning Kamp struct sbuf *sb; 3590cc3011dSPoul-Henning Kamp struct g_geom *gp; 3600cc3011dSPoul-Henning Kamp char *sp; 3610cc3011dSPoul-Henning Kamp 3620cc3011dSPoul-Henning Kamp sb = p; 3630cc3011dSPoul-Henning Kamp sp = ""; 3640cc3011dSPoul-Henning Kamp g_topology_assert(); 3650cc3011dSPoul-Henning Kamp LIST_FOREACH(gp, &g_disk_class.geom, geom) { 3660cc3011dSPoul-Henning Kamp sbuf_printf(sb, "%s%s", sp, gp->name); 3670cc3011dSPoul-Henning Kamp sp = " "; 3680cc3011dSPoul-Henning Kamp } 3690cc3011dSPoul-Henning Kamp sbuf_finish(sb); 3700cc3011dSPoul-Henning Kamp wakeup(sb); 3710cc3011dSPoul-Henning Kamp } 3720cc3011dSPoul-Henning Kamp 3730cc3011dSPoul-Henning Kamp static int 3740cc3011dSPoul-Henning Kamp sysctl_disks(SYSCTL_HANDLER_ARGS) 3750cc3011dSPoul-Henning Kamp { 3760cc3011dSPoul-Henning Kamp int error; 3770cc3011dSPoul-Henning Kamp struct sbuf *sb; 3780cc3011dSPoul-Henning Kamp 3790cc3011dSPoul-Henning Kamp sb = sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND); 3800cc3011dSPoul-Henning Kamp sbuf_clear(sb); 3810cc3011dSPoul-Henning Kamp g_call_me(g_kern_disks, sb); 3820cc3011dSPoul-Henning Kamp do { 3830cc3011dSPoul-Henning Kamp tsleep(sb, PZERO, "kern.disks", hz); 3840cc3011dSPoul-Henning Kamp } while(!sbuf_done(sb)); 385aed99af2SPoul-Henning Kamp error = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb) + 1); 3860cc3011dSPoul-Henning Kamp sbuf_delete(sb); 3870cc3011dSPoul-Henning Kamp return error; 3880cc3011dSPoul-Henning Kamp } 3890cc3011dSPoul-Henning Kamp 3900cc3011dSPoul-Henning Kamp SYSCTL_PROC(_kern, OID_AUTO, disks, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NOLOCK, 0, 0, 3910cc3011dSPoul-Henning Kamp sysctl_disks, "A", "names of available disks"); 3923bd65612SPoul-Henning Kamp 393