1dd84a43cSPoul-Henning Kamp /*- 23728855aSPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 33728855aSPedro F. Giffuni * 4dd84a43cSPoul-Henning Kamp * Copyright (c) 2002 Poul-Henning Kamp 5dd84a43cSPoul-Henning Kamp * Copyright (c) 2002 Networks Associates Technology, Inc. 6dd84a43cSPoul-Henning Kamp * All rights reserved. 7dd84a43cSPoul-Henning Kamp * 8dd84a43cSPoul-Henning Kamp * This software was developed for the FreeBSD Project by Poul-Henning Kamp 9dd84a43cSPoul-Henning Kamp * and NAI Labs, the Security Research Division of Network Associates, Inc. 10dd84a43cSPoul-Henning Kamp * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 11dd84a43cSPoul-Henning Kamp * DARPA CHATS research program. 12dd84a43cSPoul-Henning Kamp * 13dd84a43cSPoul-Henning Kamp * Redistribution and use in source and binary forms, with or without 14dd84a43cSPoul-Henning Kamp * modification, are permitted provided that the following conditions 15dd84a43cSPoul-Henning Kamp * are met: 16dd84a43cSPoul-Henning Kamp * 1. Redistributions of source code must retain the above copyright 17dd84a43cSPoul-Henning Kamp * notice, this list of conditions and the following disclaimer. 18dd84a43cSPoul-Henning Kamp * 2. Redistributions in binary form must reproduce the above copyright 19dd84a43cSPoul-Henning Kamp * notice, this list of conditions and the following disclaimer in the 20dd84a43cSPoul-Henning Kamp * documentation and/or other materials provided with the distribution. 21dd84a43cSPoul-Henning Kamp * 3. The names of the authors may not be used to endorse or promote 22dd84a43cSPoul-Henning Kamp * products derived from this software without specific prior written 23dd84a43cSPoul-Henning Kamp * permission. 24dd84a43cSPoul-Henning Kamp * 25dd84a43cSPoul-Henning Kamp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26dd84a43cSPoul-Henning Kamp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27dd84a43cSPoul-Henning Kamp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28dd84a43cSPoul-Henning Kamp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29dd84a43cSPoul-Henning Kamp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30dd84a43cSPoul-Henning Kamp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31dd84a43cSPoul-Henning Kamp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32dd84a43cSPoul-Henning Kamp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33dd84a43cSPoul-Henning Kamp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34dd84a43cSPoul-Henning Kamp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35dd84a43cSPoul-Henning Kamp * SUCH DAMAGE. 36dd84a43cSPoul-Henning Kamp * 37dd84a43cSPoul-Henning Kamp * $FreeBSD$ 38dd84a43cSPoul-Henning Kamp */ 39dd84a43cSPoul-Henning Kamp 40efb9df5cSPoul-Henning Kamp #ifndef _GEOM_GEOM_H_ 41efb9df5cSPoul-Henning Kamp #define _GEOM_GEOM_H_ 42efb9df5cSPoul-Henning Kamp 43dd84a43cSPoul-Henning Kamp #include <sys/lock.h> 44dd84a43cSPoul-Henning Kamp #include <sys/mutex.h> 45dd84a43cSPoul-Henning Kamp #include <sys/sx.h> 46dd84a43cSPoul-Henning Kamp #include <sys/queue.h> 4753705e35SPoul-Henning Kamp #include <sys/ioccom.h> 4806f4c96dSAlexander Motin #include <sys/conf.h> 496c87f8d5SPoul-Henning Kamp #include <sys/module.h> 50dd84a43cSPoul-Henning Kamp 51e805e8f0SPoul-Henning Kamp struct g_class; 52dd84a43cSPoul-Henning Kamp struct g_geom; 53dd84a43cSPoul-Henning Kamp struct g_consumer; 54dd84a43cSPoul-Henning Kamp struct g_provider; 554ec35300SPoul-Henning Kamp struct g_stat; 56dd84a43cSPoul-Henning Kamp struct thread; 57dd84a43cSPoul-Henning Kamp struct bio; 58dd84a43cSPoul-Henning Kamp struct sbuf; 5963728c47SPoul-Henning Kamp struct gctl_req; 60e6e14239SPoul-Henning Kamp struct g_configargs; 619a6844d5SKenneth D. Merry struct disk_zone_args; 62dd84a43cSPoul-Henning Kamp 63e6e14239SPoul-Henning Kamp typedef int g_config_t (struct g_configargs *ca); 6483d771deSPoul-Henning Kamp typedef void g_ctl_req_t (struct gctl_req *, struct g_class *cp, char const *verb); 6563728c47SPoul-Henning Kamp typedef int g_ctl_create_geom_t (struct gctl_req *, struct g_class *cp, struct g_provider *pp); 6663728c47SPoul-Henning Kamp typedef int g_ctl_destroy_geom_t (struct gctl_req *, struct g_class *cp, struct g_geom *gp); 67ea9ab6beSPoul-Henning Kamp typedef int g_ctl_config_geom_t (struct gctl_req *, struct g_geom *gp, const char *verb); 686c87f8d5SPoul-Henning Kamp typedef void g_init_t (struct g_class *mp); 696c87f8d5SPoul-Henning Kamp typedef void g_fini_t (struct g_class *mp); 70497c3347SPoul-Henning Kamp typedef struct g_geom * g_taste_t (struct g_class *, struct g_provider *, int flags); 712221dbebSPoul-Henning Kamp typedef int g_ioctl_t(struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td); 72dd84a43cSPoul-Henning Kamp #define G_TF_NORMAL 0 73dd84a43cSPoul-Henning Kamp #define G_TF_INSIST 1 74dd84a43cSPoul-Henning Kamp #define G_TF_TRANSPARENT 2 75dd84a43cSPoul-Henning Kamp typedef int g_access_t (struct g_provider *, int, int, int); 76dd84a43cSPoul-Henning Kamp /* XXX: not sure about the thread arg */ 77b1876192SPoul-Henning Kamp typedef void g_orphan_t (struct g_consumer *); 78dd84a43cSPoul-Henning Kamp 79dd84a43cSPoul-Henning Kamp typedef void g_start_t (struct bio *); 80dd84a43cSPoul-Henning Kamp typedef void g_spoiled_t (struct g_consumer *); 81416494d7SJustin T. Gibbs typedef void g_attrchanged_t (struct g_consumer *, const char *attr); 82c3fb2891SKenneth D. Merry typedef void g_provgone_t (struct g_provider *); 830f9d3dbaSPoul-Henning Kamp typedef void g_dumpconf_t (struct sbuf *, const char *indent, struct g_geom *, 84dd84a43cSPoul-Henning Kamp struct g_consumer *, struct g_provider *); 85245899ccSEdward Tomasz Napierala typedef void g_resize_t(struct g_consumer *cp); 86dd84a43cSPoul-Henning Kamp 87dd84a43cSPoul-Henning Kamp /* 88e805e8f0SPoul-Henning Kamp * The g_class structure describes a transformation class. In other words 89e805e8f0SPoul-Henning Kamp * all BSD disklabel handlers share one g_class, all MBR handlers share 90e805e8f0SPoul-Henning Kamp * one common g_class and so on. 91e805e8f0SPoul-Henning Kamp * Certain operations are instantiated on the class, most notably the 92e6e14239SPoul-Henning Kamp * taste and config_geom functions. 93dd84a43cSPoul-Henning Kamp */ 94e805e8f0SPoul-Henning Kamp struct g_class { 950f9d3dbaSPoul-Henning Kamp const char *name; 96dd66958eSPoul-Henning Kamp u_int version; 978d680f2cSPawel Jakub Dawidek u_int spare0; 98dd84a43cSPoul-Henning Kamp g_taste_t *taste; 99e6e14239SPoul-Henning Kamp g_config_t *config; 10083d771deSPoul-Henning Kamp g_ctl_req_t *ctlreq; 1016c87f8d5SPoul-Henning Kamp g_init_t *init; 1026c87f8d5SPoul-Henning Kamp g_fini_t *fini; 10363728c47SPoul-Henning Kamp g_ctl_destroy_geom_t *destroy_geom; 10407d77fc6SPoul-Henning Kamp /* 105ac4b76b7SPoul-Henning Kamp * Default values for geom methods 106dd66958eSPoul-Henning Kamp */ 107dd66958eSPoul-Henning Kamp g_start_t *start; 108dd66958eSPoul-Henning Kamp g_spoiled_t *spoiled; 109416494d7SJustin T. Gibbs g_attrchanged_t *attrchanged; 110dd66958eSPoul-Henning Kamp g_dumpconf_t *dumpconf; 111dd66958eSPoul-Henning Kamp g_access_t *access; 112dd66958eSPoul-Henning Kamp g_orphan_t *orphan; 113dd66958eSPoul-Henning Kamp g_ioctl_t *ioctl; 114365e076eSKenneth D. Merry g_provgone_t *providergone; 115245899ccSEdward Tomasz Napierala g_resize_t *resize; 116edad9799SKenneth D. Merry void *spare1; 1178fe76779SEdward Tomasz Napierala void *spare2; 118dd66958eSPoul-Henning Kamp /* 119f075585fSPoul-Henning Kamp * The remaining elements are private 12007d77fc6SPoul-Henning Kamp */ 121e805e8f0SPoul-Henning Kamp LIST_ENTRY(g_class) class; 122dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_geom) geom; 123dd84a43cSPoul-Henning Kamp }; 124dd84a43cSPoul-Henning Kamp 125dd66958eSPoul-Henning Kamp #define G_VERSION_00 0x19950323 1262221dbebSPoul-Henning Kamp #define G_VERSION_01 0x20041207 /* add fflag to g_ioctl_t */ 1272221dbebSPoul-Henning Kamp #define G_VERSION G_VERSION_01 128dd66958eSPoul-Henning Kamp 129dd84a43cSPoul-Henning Kamp /* 130e805e8f0SPoul-Henning Kamp * The g_geom is an instance of a g_class. 131dd84a43cSPoul-Henning Kamp */ 132dd84a43cSPoul-Henning Kamp struct g_geom { 133dd84a43cSPoul-Henning Kamp char *name; 134e805e8f0SPoul-Henning Kamp struct g_class *class; 135dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_geom) geom; 136dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_consumer) consumer; 137dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_provider) provider; 138dd84a43cSPoul-Henning Kamp TAILQ_ENTRY(g_geom) geoms; /* XXX: better name */ 139dd84a43cSPoul-Henning Kamp int rank; 140dd84a43cSPoul-Henning Kamp g_start_t *start; 141dd84a43cSPoul-Henning Kamp g_spoiled_t *spoiled; 142416494d7SJustin T. Gibbs g_attrchanged_t *attrchanged; 143dd84a43cSPoul-Henning Kamp g_dumpconf_t *dumpconf; 14407d77fc6SPoul-Henning Kamp g_access_t *access; 14507d77fc6SPoul-Henning Kamp g_orphan_t *orphan; 146497c3347SPoul-Henning Kamp g_ioctl_t *ioctl; 147365e076eSKenneth D. Merry g_provgone_t *providergone; 148245899ccSEdward Tomasz Napierala g_resize_t *resize; 149edad9799SKenneth D. Merry void *spare0; 1508fe76779SEdward Tomasz Napierala void *spare1; 151dd84a43cSPoul-Henning Kamp void *softc; 152dd84a43cSPoul-Henning Kamp unsigned flags; 153aca41af2SAndriy Gapon #define G_GEOM_WITHER 0x01 154aca41af2SAndriy Gapon #define G_GEOM_VOLATILE_BIO 0x02 155aca41af2SAndriy Gapon #define G_GEOM_IN_ACCESS 0x04 156aca41af2SAndriy Gapon #define G_GEOM_ACCESS_WAIT 0x08 157dd84a43cSPoul-Henning Kamp }; 158dd84a43cSPoul-Henning Kamp 159dd84a43cSPoul-Henning Kamp /* 160dd84a43cSPoul-Henning Kamp * The g_bioq is a queue of struct bio's. 161dd84a43cSPoul-Henning Kamp * XXX: possibly collection point for statistics. 162dd84a43cSPoul-Henning Kamp * XXX: should (possibly) be collapsed with sys/bio.h::bio_queue_head. 163dd84a43cSPoul-Henning Kamp */ 164dd84a43cSPoul-Henning Kamp struct g_bioq { 165dd84a43cSPoul-Henning Kamp TAILQ_HEAD(, bio) bio_queue; 166dd84a43cSPoul-Henning Kamp struct mtx bio_queue_lock; 167dd84a43cSPoul-Henning Kamp int bio_queue_length; 168dd84a43cSPoul-Henning Kamp }; 169dd84a43cSPoul-Henning Kamp 170dd84a43cSPoul-Henning Kamp /* 171dd84a43cSPoul-Henning Kamp * A g_consumer is an attachment point for a g_provider. One g_consumer 172dd84a43cSPoul-Henning Kamp * can only be attached to one g_provider, but multiple g_consumers 173dd84a43cSPoul-Henning Kamp * can be attached to one g_provider. 174dd84a43cSPoul-Henning Kamp */ 175dd84a43cSPoul-Henning Kamp 176dd84a43cSPoul-Henning Kamp struct g_consumer { 177dd84a43cSPoul-Henning Kamp struct g_geom *geom; 178dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_consumer) consumer; 179dd84a43cSPoul-Henning Kamp struct g_provider *provider; 180dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_consumer) consumers; /* XXX: better name */ 181dd84a43cSPoul-Henning Kamp int acr, acw, ace; 1823631c638SAlexander Motin int flags; 1833631c638SAlexander Motin #define G_CF_SPOILED 0x1 1843631c638SAlexander Motin #define G_CF_ORPHAN 0x4 18540ea77a0SAlexander Motin #define G_CF_DIRECT_SEND 0x10 18640ea77a0SAlexander Motin #define G_CF_DIRECT_RECEIVE 0x20 187e24cbd90SPoul-Henning Kamp struct devstat *stat; 1880e082fccSPoul-Henning Kamp u_int nstart, nend; 189f865123eSPoul-Henning Kamp 190f865123eSPoul-Henning Kamp /* Two fields for the implementing class to use */ 191f865123eSPoul-Henning Kamp void *private; 192f865123eSPoul-Henning Kamp u_int index; 193dd84a43cSPoul-Henning Kamp }; 194dd84a43cSPoul-Henning Kamp 195dd84a43cSPoul-Henning Kamp /* 196ae1cce52SWarner Losh * The g_geom_alias is a list node for aliases for the provider name for device 197ae1cce52SWarner Losh * node creation. 198ae1cce52SWarner Losh */ 199ae1cce52SWarner Losh struct g_geom_alias { 200ae1cce52SWarner Losh LIST_ENTRY(g_geom_alias) ga_next; 201ae1cce52SWarner Losh const char *ga_alias; 202ae1cce52SWarner Losh }; 203ae1cce52SWarner Losh 204ae1cce52SWarner Losh /* 205dd84a43cSPoul-Henning Kamp * A g_provider is a "logical disk". 206dd84a43cSPoul-Henning Kamp */ 207dd84a43cSPoul-Henning Kamp struct g_provider { 208dd84a43cSPoul-Henning Kamp char *name; 209dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_provider) provider; 210dd84a43cSPoul-Henning Kamp struct g_geom *geom; 211dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_consumer) consumers; 212dd84a43cSPoul-Henning Kamp int acr, acw, ace; 213dd84a43cSPoul-Henning Kamp int error; 214dd84a43cSPoul-Henning Kamp TAILQ_ENTRY(g_provider) orphan; 2152fccec19SPoul-Henning Kamp off_t mediasize; 21648444d62SPoul-Henning Kamp u_int sectorsize; 2176d305ab0SEugene Grosbein off_t stripesize; 2186d305ab0SEugene Grosbein off_t stripeoffset; 219e24cbd90SPoul-Henning Kamp struct devstat *stat; 2209794a803SAlexander Motin u_int spare1; 2219794a803SAlexander Motin u_int spare2; 22283333d45SPoul-Henning Kamp u_int flags; 22390916ef7SPoul-Henning Kamp #define G_PF_WITHER 0x2 224d0265773SPoul-Henning Kamp #define G_PF_ORPHAN 0x4 225ee75e7deSKonstantin Belousov #define G_PF_ACCEPT_UNMAPPED 0x8 22640ea77a0SAlexander Motin #define G_PF_DIRECT_SEND 0x10 22740ea77a0SAlexander Motin #define G_PF_DIRECT_RECEIVE 0x20 228ae1cce52SWarner Losh LIST_HEAD(,g_geom_alias) aliases; 229f865123eSPoul-Henning Kamp 230f865123eSPoul-Henning Kamp /* Two fields for the implementing class to use */ 231f865123eSPoul-Henning Kamp void *private; 232f865123eSPoul-Henning Kamp u_int index; 233dd84a43cSPoul-Henning Kamp }; 234dd84a43cSPoul-Henning Kamp 235c6d4ed3aSAlexander Motin /* BIO_GETATTR("GEOM::setstate") argument values. */ 236c6d4ed3aSAlexander Motin #define G_STATE_FAILED 0 237c6d4ed3aSAlexander Motin #define G_STATE_REBUILD 1 238c6d4ed3aSAlexander Motin #define G_STATE_RESYNC 2 239c6d4ed3aSAlexander Motin #define G_STATE_ACTIVE 3 240c6d4ed3aSAlexander Motin 241ce225127SPoul-Henning Kamp /* geom_dev.c */ 24289c9c53dSPoul-Henning Kamp struct cdev; 24384c080a8SPoul-Henning Kamp void g_dev_print(void); 244416494d7SJustin T. Gibbs void g_dev_physpath_changed(void); 24589c9c53dSPoul-Henning Kamp struct g_provider *g_dev_getprovider(struct cdev *dev); 246ce225127SPoul-Henning Kamp 247dd84a43cSPoul-Henning Kamp /* geom_dump.c */ 2482efaef42SAlexander Motin void (g_trace)(int level, const char *, ...) __printflike(2, 3); 249c4c88d47SAlexander Motin #define G_T_TOPOLOGY 0x01 250c4c88d47SAlexander Motin #define G_T_BIO 0x02 251c4c88d47SAlexander Motin #define G_T_ACCESS 0x04 2522efaef42SAlexander Motin extern int g_debugflags; 253c4c88d47SAlexander Motin #define G_F_FOOTSHOOTING 0x10 254c4c88d47SAlexander Motin #define G_F_DISKIOCTL 0x40 255c4c88d47SAlexander Motin #define G_F_CTLDUMP 0x80 2562efaef42SAlexander Motin #define g_trace(level, fmt, ...) do { \ 2572efaef42SAlexander Motin if (__predict_false(g_debugflags & (level))) \ 2582efaef42SAlexander Motin (g_trace)(level, fmt, ## __VA_ARGS__); \ 2592efaef42SAlexander Motin } while (0) 2603773a65cSPoul-Henning Kamp 261dd84a43cSPoul-Henning Kamp /* geom_event.c */ 2628cd1535aSPoul-Henning Kamp typedef void g_event_t(void *, int flag); 263316aed03SPoul-Henning Kamp #define EV_CANCEL 1 2648cd1535aSPoul-Henning Kamp int g_post_event(g_event_t *func, void *arg, int flag, ...); 2650a9c130cSPoul-Henning Kamp int g_waitfor_event(g_event_t *func, void *arg, int flag, ...); 266316aed03SPoul-Henning Kamp void g_cancel_event(void *ref); 267416494d7SJustin T. Gibbs int g_attr_changed(struct g_provider *pp, const char *attr, int flag); 2683631c638SAlexander Motin int g_media_changed(struct g_provider *pp, int flag); 2693631c638SAlexander Motin int g_media_gone(struct g_provider *pp, int flag); 270dd84a43cSPoul-Henning Kamp void g_orphan_provider(struct g_provider *pp, int error); 271b8005b9bSPawel Jakub Dawidek void g_waitidlelock(void); 272dd84a43cSPoul-Henning Kamp 273dd84a43cSPoul-Henning Kamp /* geom_subr.c */ 274d2bae332SPoul-Henning Kamp int g_access(struct g_consumer *cp, int nread, int nwrite, int nexcl); 275dd84a43cSPoul-Henning Kamp int g_attach(struct g_consumer *cp, struct g_provider *pp); 27690f2be24SAlexander Motin int g_compare_names(const char *namea, const char *nameb); 277dd84a43cSPoul-Henning Kamp void g_destroy_consumer(struct g_consumer *cp); 278dd84a43cSPoul-Henning Kamp void g_destroy_geom(struct g_geom *pp); 279dd84a43cSPoul-Henning Kamp void g_destroy_provider(struct g_provider *pp); 280503abe45SPoul-Henning Kamp void g_detach(struct g_consumer *cp); 281dd84a43cSPoul-Henning Kamp void g_error_provider(struct g_provider *pp, int error); 282d6c5e716SPoul-Henning Kamp struct g_provider *g_provider_by_name(char const *arg); 283a4ef1c5fSPoul-Henning Kamp int g_getattr__(const char *attr, struct g_consumer *cp, void *var, int len); 284a4ef1c5fSPoul-Henning Kamp #define g_getattr(a, c, v) g_getattr__((a), (c), (v), sizeof *(v)) 285709a6266SMarcel Moolenaar int g_handleattr(struct bio *bp, const char *attribute, const void *val, 286709a6266SMarcel Moolenaar int len); 2870f9d3dbaSPoul-Henning Kamp int g_handleattr_int(struct bio *bp, const char *attribute, int val); 2880f9d3dbaSPoul-Henning Kamp int g_handleattr_off_t(struct bio *bp, const char *attribute, off_t val); 289c28078e9SSteven Hartland int g_handleattr_uint16_t(struct bio *bp, const char *attribute, uint16_t val); 290709a6266SMarcel Moolenaar int g_handleattr_str(struct bio *bp, const char *attribute, const char *str); 291dd84a43cSPoul-Henning Kamp struct g_consumer * g_new_consumer(struct g_geom *gp); 29202c62349SJaakko Heinonen struct g_geom * g_new_geomf(struct g_class *mp, const char *fmt, ...) 29302c62349SJaakko Heinonen __printflike(2, 3); 29402c62349SJaakko Heinonen struct g_provider * g_new_providerf(struct g_geom *gp, const char *fmt, ...) 29502c62349SJaakko Heinonen __printflike(2, 3); 296ae1cce52SWarner Losh void g_provider_add_alias(struct g_provider *pp, const char *fmt, ...) 297ae1cce52SWarner Losh __printflike(2, 3); 298245899ccSEdward Tomasz Napierala void g_resize_provider(struct g_provider *pp, off_t size); 2998a8fcb00SMarcel Moolenaar int g_retaste(struct g_class *mp); 300dd84a43cSPoul-Henning Kamp void g_spoil(struct g_provider *pp, struct g_consumer *cp); 301dd84a43cSPoul-Henning Kamp int g_std_access(struct g_provider *pp, int dr, int dw, int de); 302dd84a43cSPoul-Henning Kamp void g_std_done(struct bio *bp); 303dd84a43cSPoul-Henning Kamp void g_std_spoiled(struct g_consumer *cp); 304d6227ae7SPoul-Henning Kamp void g_wither_geom(struct g_geom *gp, int error); 305725419afSPoul-Henning Kamp void g_wither_geom_close(struct g_geom *gp, int error); 306d99c1559SMarcel Moolenaar void g_wither_provider(struct g_provider *pp, int error); 307dd84a43cSPoul-Henning Kamp 308679f8b7eSPawel Jakub Dawidek #if defined(DIAGNOSTIC) || defined(DDB) 3093d1d5bc3SPoul-Henning Kamp int g_valid_obj(void const *ptr); 310679f8b7eSPawel Jakub Dawidek #endif 311679f8b7eSPawel Jakub Dawidek #ifdef DIAGNOSTIC 3123d1d5bc3SPoul-Henning Kamp #define G_VALID_CLASS(foo) \ 3133d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 1, ("%p is not a g_class", foo)) 3143d1d5bc3SPoul-Henning Kamp #define G_VALID_GEOM(foo) \ 3153d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 2, ("%p is not a g_geom", foo)) 3163d1d5bc3SPoul-Henning Kamp #define G_VALID_CONSUMER(foo) \ 3173d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 3, ("%p is not a g_consumer", foo)) 3183d1d5bc3SPoul-Henning Kamp #define G_VALID_PROVIDER(foo) \ 3193d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 4, ("%p is not a g_provider", foo)) 3203d1d5bc3SPoul-Henning Kamp #else 3213d1d5bc3SPoul-Henning Kamp #define G_VALID_CLASS(foo) do { } while (0) 3223d1d5bc3SPoul-Henning Kamp #define G_VALID_GEOM(foo) do { } while (0) 3233d1d5bc3SPoul-Henning Kamp #define G_VALID_CONSUMER(foo) do { } while (0) 3243d1d5bc3SPoul-Henning Kamp #define G_VALID_PROVIDER(foo) do { } while (0) 3253d1d5bc3SPoul-Henning Kamp #endif 3263d1d5bc3SPoul-Henning Kamp 3276c87f8d5SPoul-Henning Kamp int g_modevent(module_t, int, void *); 3286c87f8d5SPoul-Henning Kamp 329dd84a43cSPoul-Henning Kamp /* geom_io.c */ 330dd84a43cSPoul-Henning Kamp struct bio * g_clone_bio(struct bio *); 3314bec0ff1SPawel Jakub Dawidek struct bio * g_duplicate_bio(struct bio *); 332dd84a43cSPoul-Henning Kamp void g_destroy_bio(struct bio *); 33372840432SPoul-Henning Kamp void g_io_deliver(struct bio *bp, int error); 3340d3f37a8SPoul-Henning Kamp int g_io_getattr(const char *attr, struct g_consumer *cp, int *len, void *ptr); 3359a6844d5SKenneth D. Merry int g_io_zonecmd(struct disk_zone_args *zone_args, struct g_consumer *cp); 336c3618c65SPawel Jakub Dawidek int g_io_flush(struct g_consumer *cp); 337b182c792SWarner Losh int g_io_speedup(size_t shortage, u_int flags, size_t *resid, struct g_consumer *cp); 338dd84a43cSPoul-Henning Kamp void g_io_request(struct bio *bp, struct g_consumer *cp); 339dd84a43cSPoul-Henning Kamp struct bio *g_new_bio(void); 340a2033c96SPoul-Henning Kamp struct bio *g_alloc_bio(void); 341c55f5707SWarner Losh void g_reset_bio(struct bio *); 342dd84a43cSPoul-Henning Kamp void * g_read_data(struct g_consumer *cp, off_t offset, off_t length, int *error); 34390b1cd56SPoul-Henning Kamp int g_write_data(struct g_consumer *cp, off_t offset, void *ptr, off_t length); 3442b17fb95SPawel Jakub Dawidek int g_delete_data(struct g_consumer *cp, off_t offset, off_t length); 345ac03832eSConrad Meyer void g_format_bio(struct sbuf *, const struct bio *bp); 346ac03832eSConrad Meyer void g_print_bio(const char *prefix, const struct bio *bp, const char *fmtsuffix, ...) __printflike(3, 4); 347dffce215SKirk McKusick int g_use_g_read_data(void *, off_t, void **, int); 348dffce215SKirk McKusick int g_use_g_write_data(void *, off_t, void *, int); 349dd84a43cSPoul-Henning Kamp 350dd84a43cSPoul-Henning Kamp /* geom_kern.c / geom_kernsim.c */ 351dd84a43cSPoul-Henning Kamp 352dd84a43cSPoul-Henning Kamp #ifdef _KERNEL 353dd84a43cSPoul-Henning Kamp 354e8c85a50SPawel Jakub Dawidek extern struct sx topology_lock; 355e8c85a50SPawel Jakub Dawidek 35695c24b31SPoul-Henning Kamp struct g_kerneldump { 35795c24b31SPoul-Henning Kamp off_t offset; 35895c24b31SPoul-Henning Kamp off_t length; 35906f4c96dSAlexander Motin struct dumperinfo di; 36095c24b31SPoul-Henning Kamp }; 36195c24b31SPoul-Henning Kamp 362dd84a43cSPoul-Henning Kamp MALLOC_DECLARE(M_GEOM); 363dd84a43cSPoul-Henning Kamp 364dd84a43cSPoul-Henning Kamp static __inline void * 365dd84a43cSPoul-Henning Kamp g_malloc(int size, int flags) 366dd84a43cSPoul-Henning Kamp { 367dd84a43cSPoul-Henning Kamp void *p; 368dd84a43cSPoul-Henning Kamp 369dd84a43cSPoul-Henning Kamp p = malloc(size, M_GEOM, flags); 370dd84a43cSPoul-Henning Kamp return (p); 371dd84a43cSPoul-Henning Kamp } 372dd84a43cSPoul-Henning Kamp 373dd84a43cSPoul-Henning Kamp static __inline void 374dd84a43cSPoul-Henning Kamp g_free(void *ptr) 375dd84a43cSPoul-Henning Kamp { 3763d1d5bc3SPoul-Henning Kamp 3773d1d5bc3SPoul-Henning Kamp #ifdef DIAGNOSTIC 378e8c85a50SPawel Jakub Dawidek if (sx_xlocked(&topology_lock)) { 3793d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(ptr) == 0, 380e8c85a50SPawel Jakub Dawidek ("g_free(%p) of live object, type %d", ptr, 381e8c85a50SPawel Jakub Dawidek g_valid_obj(ptr))); 382e8c85a50SPawel Jakub Dawidek } 3833d1d5bc3SPoul-Henning Kamp #endif 384dd84a43cSPoul-Henning Kamp free(ptr, M_GEOM); 385dd84a43cSPoul-Henning Kamp } 386dd84a43cSPoul-Henning Kamp 3874b8374a7SPoul-Henning Kamp #define g_topology_lock() \ 3884b8374a7SPoul-Henning Kamp do { \ 3894b8374a7SPoul-Henning Kamp sx_xlock(&topology_lock); \ 3904b8374a7SPoul-Henning Kamp } while (0) 3914b8374a7SPoul-Henning Kamp 39254bab03fSPawel Jakub Dawidek #define g_topology_try_lock() sx_try_xlock(&topology_lock) 39354bab03fSPawel Jakub Dawidek 3944b8374a7SPoul-Henning Kamp #define g_topology_unlock() \ 3954b8374a7SPoul-Henning Kamp do { \ 3964b8374a7SPoul-Henning Kamp sx_xunlock(&topology_lock); \ 3974b8374a7SPoul-Henning Kamp } while (0) 3984b8374a7SPoul-Henning Kamp 399cefbc0d1SPawel Jakub Dawidek #define g_topology_locked() sx_xlocked(&topology_lock) 400cefbc0d1SPawel Jakub Dawidek 4014b8374a7SPoul-Henning Kamp #define g_topology_assert() \ 4024b8374a7SPoul-Henning Kamp do { \ 4034b8374a7SPoul-Henning Kamp sx_assert(&topology_lock, SX_XLOCKED); \ 4044b8374a7SPoul-Henning Kamp } while (0) 405dd84a43cSPoul-Henning Kamp 406692498b0SPawel Jakub Dawidek #define g_topology_assert_not() \ 407692498b0SPawel Jakub Dawidek do { \ 408692498b0SPawel Jakub Dawidek sx_assert(&topology_lock, SX_UNLOCKED); \ 409692498b0SPawel Jakub Dawidek } while (0) 410692498b0SPawel Jakub Dawidek 4119061251fSJaakko Heinonen #define g_topology_sleep(chan, timo) \ 4129061251fSJaakko Heinonen sx_sleep(chan, &topology_lock, 0, "gtopol", timo) 4139061251fSJaakko Heinonen 414e805e8f0SPoul-Henning Kamp #define DECLARE_GEOM_CLASS(class, name) \ 4156c87f8d5SPoul-Henning Kamp static moduledata_t name##_mod = { \ 4166c87f8d5SPoul-Henning Kamp #name, g_modevent, &class \ 4176c87f8d5SPoul-Henning Kamp }; \ 418b951b8f7SRoger Pau Monné DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND); 419dd84a43cSPoul-Henning Kamp 42040ea77a0SAlexander Motin int g_is_geom_thread(struct thread *td); 42140ea77a0SAlexander Motin 4228510f61aSXin LI #ifndef _PATH_DEV 4238510f61aSXin LI #define _PATH_DEV "/dev/" 4248510f61aSXin LI #endif 4258510f61aSXin LI 4267d590cc4SPoul-Henning Kamp #endif /* _KERNEL */ 427dd84a43cSPoul-Henning Kamp 42863728c47SPoul-Henning Kamp /* geom_ctl.c */ 42941063f93SMarcel Moolenaar int gctl_set_param(struct gctl_req *req, const char *param, void const *ptr, int len); 43041063f93SMarcel Moolenaar void gctl_set_param_err(struct gctl_req *req, const char *param, void const *ptr, int len); 43163728c47SPoul-Henning Kamp void *gctl_get_param(struct gctl_req *req, const char *param, int *len); 43283d771deSPoul-Henning Kamp char const *gctl_get_asciiparam(struct gctl_req *req, const char *param); 433fb9483afSPoul-Henning Kamp void *gctl_get_paraml(struct gctl_req *req, const char *param, int len); 4341e00bb45SChuck Silvers void *gctl_get_paraml_opt(struct gctl_req *req, const char *param, int len); 4355e165262SPawel Jakub Dawidek int gctl_error(struct gctl_req *req, const char *fmt, ...) __printflike(2, 3); 43683d771deSPoul-Henning Kamp struct g_class *gctl_get_class(struct gctl_req *req, char const *arg); 437*a450ecfdSXin LI struct g_geom *gctl_get_geom(struct gctl_req *req, struct g_class *mp, char const *arg); 43883d771deSPoul-Henning Kamp struct g_provider *gctl_get_provider(struct gctl_req *req, char const *arg); 43963728c47SPoul-Henning Kamp 440efb9df5cSPoul-Henning Kamp #endif /* _GEOM_GEOM_H_ */ 441