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 38efb9df5cSPoul-Henning Kamp #ifndef _GEOM_GEOM_H_ 39efb9df5cSPoul-Henning Kamp #define _GEOM_GEOM_H_ 40efb9df5cSPoul-Henning Kamp 41dd84a43cSPoul-Henning Kamp #include <sys/lock.h> 42dd84a43cSPoul-Henning Kamp #include <sys/mutex.h> 43dd84a43cSPoul-Henning Kamp #include <sys/sx.h> 44dd84a43cSPoul-Henning Kamp #include <sys/queue.h> 4553705e35SPoul-Henning Kamp #include <sys/ioccom.h> 4606f4c96dSAlexander Motin #include <sys/conf.h> 476c87f8d5SPoul-Henning Kamp #include <sys/module.h> 48dd84a43cSPoul-Henning Kamp 49e805e8f0SPoul-Henning Kamp struct g_class; 50dd84a43cSPoul-Henning Kamp struct g_geom; 51dd84a43cSPoul-Henning Kamp struct g_consumer; 52dd84a43cSPoul-Henning Kamp struct g_provider; 534ec35300SPoul-Henning Kamp struct g_stat; 54dd84a43cSPoul-Henning Kamp struct thread; 55dd84a43cSPoul-Henning Kamp struct bio; 56dd84a43cSPoul-Henning Kamp struct sbuf; 5763728c47SPoul-Henning Kamp struct gctl_req; 58e6e14239SPoul-Henning Kamp struct g_configargs; 59dd84a43cSPoul-Henning Kamp 60e6e14239SPoul-Henning Kamp typedef int g_config_t (struct g_configargs *ca); 6183d771deSPoul-Henning Kamp typedef void g_ctl_req_t (struct gctl_req *, struct g_class *cp, char const *verb); 6263728c47SPoul-Henning Kamp typedef int g_ctl_create_geom_t (struct gctl_req *, struct g_class *cp, struct g_provider *pp); 6363728c47SPoul-Henning Kamp typedef int g_ctl_destroy_geom_t (struct gctl_req *, struct g_class *cp, struct g_geom *gp); 64ea9ab6beSPoul-Henning Kamp typedef int g_ctl_config_geom_t (struct gctl_req *, struct g_geom *gp, const char *verb); 656c87f8d5SPoul-Henning Kamp typedef void g_init_t (struct g_class *mp); 666c87f8d5SPoul-Henning Kamp typedef void g_fini_t (struct g_class *mp); 67497c3347SPoul-Henning Kamp typedef struct g_geom * g_taste_t (struct g_class *, struct g_provider *, int flags); 682221dbebSPoul-Henning Kamp typedef int g_ioctl_t(struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td); 69dd84a43cSPoul-Henning Kamp #define G_TF_NORMAL 0 70dd84a43cSPoul-Henning Kamp #define G_TF_INSIST 1 71dd84a43cSPoul-Henning Kamp #define G_TF_TRANSPARENT 2 72dd84a43cSPoul-Henning Kamp typedef int g_access_t (struct g_provider *, int, int, int); 73dd84a43cSPoul-Henning Kamp /* XXX: not sure about the thread arg */ 74b1876192SPoul-Henning Kamp typedef void g_orphan_t (struct g_consumer *); 75dd84a43cSPoul-Henning Kamp 76dd84a43cSPoul-Henning Kamp typedef void g_start_t (struct bio *); 77dd84a43cSPoul-Henning Kamp typedef void g_spoiled_t (struct g_consumer *); 78416494d7SJustin T. Gibbs typedef void g_attrchanged_t (struct g_consumer *, const char *attr); 79*c3fb2891SKenneth D. Merry typedef void g_provgone_t (struct g_provider *); 800f9d3dbaSPoul-Henning Kamp typedef void g_dumpconf_t (struct sbuf *, const char *indent, struct g_geom *, 81dd84a43cSPoul-Henning Kamp struct g_consumer *, struct g_provider *); 82dd84a43cSPoul-Henning Kamp 83dd84a43cSPoul-Henning Kamp /* 84e805e8f0SPoul-Henning Kamp * The g_class structure describes a transformation class. In other words 85e805e8f0SPoul-Henning Kamp * all BSD disklabel handlers share one g_class, all MBR handlers share 86e805e8f0SPoul-Henning Kamp * one common g_class and so on. 87e805e8f0SPoul-Henning Kamp * Certain operations are instantiated on the class, most notably the 88e6e14239SPoul-Henning Kamp * taste and config_geom functions. 89dd84a43cSPoul-Henning Kamp */ 90e805e8f0SPoul-Henning Kamp struct g_class { 910f9d3dbaSPoul-Henning Kamp const char *name; 92dd66958eSPoul-Henning Kamp u_int version; 938d680f2cSPawel Jakub Dawidek u_int spare0; 94dd84a43cSPoul-Henning Kamp g_taste_t *taste; 95e6e14239SPoul-Henning Kamp g_config_t *config; 9683d771deSPoul-Henning Kamp g_ctl_req_t *ctlreq; 976c87f8d5SPoul-Henning Kamp g_init_t *init; 986c87f8d5SPoul-Henning Kamp g_fini_t *fini; 9963728c47SPoul-Henning Kamp g_ctl_destroy_geom_t *destroy_geom; 10007d77fc6SPoul-Henning Kamp /* 101ac4b76b7SPoul-Henning Kamp * Default values for geom methods 102dd66958eSPoul-Henning Kamp */ 103dd66958eSPoul-Henning Kamp g_start_t *start; 104dd66958eSPoul-Henning Kamp g_spoiled_t *spoiled; 105416494d7SJustin T. Gibbs g_attrchanged_t *attrchanged; 106*c3fb2891SKenneth D. Merry g_provgone_t *providergone; 107dd66958eSPoul-Henning Kamp g_dumpconf_t *dumpconf; 108dd66958eSPoul-Henning Kamp g_access_t *access; 109dd66958eSPoul-Henning Kamp g_orphan_t *orphan; 110dd66958eSPoul-Henning Kamp g_ioctl_t *ioctl; 1118d680f2cSPawel Jakub Dawidek void *spare1; 1128d680f2cSPawel Jakub Dawidek void *spare2; 113dd66958eSPoul-Henning Kamp /* 114f075585fSPoul-Henning Kamp * The remaining elements are private 11507d77fc6SPoul-Henning Kamp */ 116e805e8f0SPoul-Henning Kamp LIST_ENTRY(g_class) class; 117dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_geom) geom; 118dd84a43cSPoul-Henning Kamp }; 119dd84a43cSPoul-Henning Kamp 120dd66958eSPoul-Henning Kamp #define G_VERSION_00 0x19950323 1212221dbebSPoul-Henning Kamp #define G_VERSION_01 0x20041207 /* add fflag to g_ioctl_t */ 1222221dbebSPoul-Henning Kamp #define G_VERSION G_VERSION_01 123dd66958eSPoul-Henning Kamp 124dd84a43cSPoul-Henning Kamp /* 125e805e8f0SPoul-Henning Kamp * The g_geom is an instance of a g_class. 126dd84a43cSPoul-Henning Kamp */ 127dd84a43cSPoul-Henning Kamp struct g_geom { 128dd84a43cSPoul-Henning Kamp char *name; 129e805e8f0SPoul-Henning Kamp struct g_class *class; 130dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_geom) geom; 131dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_consumer) consumer; 132dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_provider) provider; 133dd84a43cSPoul-Henning Kamp TAILQ_ENTRY(g_geom) geoms; /* XXX: better name */ 134dd84a43cSPoul-Henning Kamp int rank; 135dd84a43cSPoul-Henning Kamp g_start_t *start; 136dd84a43cSPoul-Henning Kamp g_spoiled_t *spoiled; 137416494d7SJustin T. Gibbs g_attrchanged_t *attrchanged; 138*c3fb2891SKenneth D. Merry g_provgone_t *providergone; 139dd84a43cSPoul-Henning Kamp g_dumpconf_t *dumpconf; 14007d77fc6SPoul-Henning Kamp g_access_t *access; 14107d77fc6SPoul-Henning Kamp g_orphan_t *orphan; 142497c3347SPoul-Henning Kamp g_ioctl_t *ioctl; 1438d680f2cSPawel Jakub Dawidek void *spare0; 1448d680f2cSPawel Jakub Dawidek void *spare1; 145dd84a43cSPoul-Henning Kamp void *softc; 146dd84a43cSPoul-Henning Kamp unsigned flags; 147dd84a43cSPoul-Henning Kamp #define G_GEOM_WITHER 1 148fb231f36SEdward Tomasz Napierala #define G_GEOM_VOLATILE_BIO 2 149dd84a43cSPoul-Henning Kamp }; 150dd84a43cSPoul-Henning Kamp 151dd84a43cSPoul-Henning Kamp /* 152dd84a43cSPoul-Henning Kamp * The g_bioq is a queue of struct bio's. 153dd84a43cSPoul-Henning Kamp * XXX: possibly collection point for statistics. 154dd84a43cSPoul-Henning Kamp * XXX: should (possibly) be collapsed with sys/bio.h::bio_queue_head. 155dd84a43cSPoul-Henning Kamp */ 156dd84a43cSPoul-Henning Kamp struct g_bioq { 157dd84a43cSPoul-Henning Kamp TAILQ_HEAD(, bio) bio_queue; 158dd84a43cSPoul-Henning Kamp struct mtx bio_queue_lock; 159dd84a43cSPoul-Henning Kamp int bio_queue_length; 160dd84a43cSPoul-Henning Kamp }; 161dd84a43cSPoul-Henning Kamp 162dd84a43cSPoul-Henning Kamp /* 163dd84a43cSPoul-Henning Kamp * A g_consumer is an attachment point for a g_provider. One g_consumer 164dd84a43cSPoul-Henning Kamp * can only be attached to one g_provider, but multiple g_consumers 165dd84a43cSPoul-Henning Kamp * can be attached to one g_provider. 166dd84a43cSPoul-Henning Kamp */ 167dd84a43cSPoul-Henning Kamp 168dd84a43cSPoul-Henning Kamp struct g_consumer { 169dd84a43cSPoul-Henning Kamp struct g_geom *geom; 170dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_consumer) consumer; 171dd84a43cSPoul-Henning Kamp struct g_provider *provider; 172dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_consumer) consumers; /* XXX: better name */ 173dd84a43cSPoul-Henning Kamp int acr, acw, ace; 174dd84a43cSPoul-Henning Kamp int spoiled; 175e24cbd90SPoul-Henning Kamp struct devstat *stat; 1760e082fccSPoul-Henning Kamp u_int nstart, nend; 177f865123eSPoul-Henning Kamp 178f865123eSPoul-Henning Kamp /* Two fields for the implementing class to use */ 179f865123eSPoul-Henning Kamp void *private; 180f865123eSPoul-Henning Kamp u_int index; 181dd84a43cSPoul-Henning Kamp }; 182dd84a43cSPoul-Henning Kamp 183dd84a43cSPoul-Henning Kamp /* 184dd84a43cSPoul-Henning Kamp * A g_provider is a "logical disk". 185dd84a43cSPoul-Henning Kamp */ 186dd84a43cSPoul-Henning Kamp struct g_provider { 187dd84a43cSPoul-Henning Kamp char *name; 188dd84a43cSPoul-Henning Kamp LIST_ENTRY(g_provider) provider; 189dd84a43cSPoul-Henning Kamp struct g_geom *geom; 190dd84a43cSPoul-Henning Kamp LIST_HEAD(,g_consumer) consumers; 191dd84a43cSPoul-Henning Kamp int acr, acw, ace; 192dd84a43cSPoul-Henning Kamp int error; 193dd84a43cSPoul-Henning Kamp TAILQ_ENTRY(g_provider) orphan; 1942fccec19SPoul-Henning Kamp off_t mediasize; 19548444d62SPoul-Henning Kamp u_int sectorsize; 1968a63edc3SPoul-Henning Kamp u_int stripesize; 1978a63edc3SPoul-Henning Kamp u_int stripeoffset; 198e24cbd90SPoul-Henning Kamp struct devstat *stat; 1990e082fccSPoul-Henning Kamp u_int nstart, nend; 20083333d45SPoul-Henning Kamp u_int flags; 20183333d45SPoul-Henning Kamp #define G_PF_CANDELETE 0x1 20290916ef7SPoul-Henning Kamp #define G_PF_WITHER 0x2 203d0265773SPoul-Henning Kamp #define G_PF_ORPHAN 0x4 204f865123eSPoul-Henning Kamp 205f865123eSPoul-Henning Kamp /* Two fields for the implementing class to use */ 206f865123eSPoul-Henning Kamp void *private; 207f865123eSPoul-Henning Kamp u_int index; 208dd84a43cSPoul-Henning Kamp }; 209dd84a43cSPoul-Henning Kamp 2106231f75bSLuigi Rizzo /* 2116231f75bSLuigi Rizzo * Descriptor of a classifier. We can register a function and 2126231f75bSLuigi Rizzo * an argument, which is called by g_io_request() on bio's 2136231f75bSLuigi Rizzo * that are not previously classified. 2146231f75bSLuigi Rizzo */ 2156231f75bSLuigi Rizzo struct g_classifier_hook { 2166231f75bSLuigi Rizzo TAILQ_ENTRY(g_classifier_hook) link; 2176231f75bSLuigi Rizzo int (*func)(void *arg, struct bio *bp); 2186231f75bSLuigi Rizzo void *arg; 2196231f75bSLuigi Rizzo }; 2206231f75bSLuigi Rizzo 221c6d4ed3aSAlexander Motin /* BIO_GETATTR("GEOM::setstate") argument values. */ 222c6d4ed3aSAlexander Motin #define G_STATE_FAILED 0 223c6d4ed3aSAlexander Motin #define G_STATE_REBUILD 1 224c6d4ed3aSAlexander Motin #define G_STATE_RESYNC 2 225c6d4ed3aSAlexander Motin #define G_STATE_ACTIVE 3 226c6d4ed3aSAlexander Motin 227ce225127SPoul-Henning Kamp /* geom_dev.c */ 22889c9c53dSPoul-Henning Kamp struct cdev; 22984c080a8SPoul-Henning Kamp void g_dev_print(void); 230416494d7SJustin T. Gibbs void g_dev_physpath_changed(void); 23189c9c53dSPoul-Henning Kamp struct g_provider *g_dev_getprovider(struct cdev *dev); 232ce225127SPoul-Henning Kamp 233dd84a43cSPoul-Henning Kamp /* geom_dump.c */ 2340f9d3dbaSPoul-Henning Kamp void g_trace(int level, const char *, ...); 235dd84a43cSPoul-Henning Kamp # define G_T_TOPOLOGY 1 236dd84a43cSPoul-Henning Kamp # define G_T_BIO 2 237dd84a43cSPoul-Henning Kamp # define G_T_ACCESS 4 238dd84a43cSPoul-Henning Kamp 2393773a65cSPoul-Henning Kamp 240dd84a43cSPoul-Henning Kamp /* geom_event.c */ 2418cd1535aSPoul-Henning Kamp typedef void g_event_t(void *, int flag); 242316aed03SPoul-Henning Kamp #define EV_CANCEL 1 2438cd1535aSPoul-Henning Kamp int g_post_event(g_event_t *func, void *arg, int flag, ...); 2440a9c130cSPoul-Henning Kamp int g_waitfor_event(g_event_t *func, void *arg, int flag, ...); 245316aed03SPoul-Henning Kamp void g_cancel_event(void *ref); 246416494d7SJustin T. Gibbs int g_attr_changed(struct g_provider *pp, const char *attr, int flag); 247dd84a43cSPoul-Henning Kamp void g_orphan_provider(struct g_provider *pp, int error); 248b8005b9bSPawel Jakub Dawidek void g_waitidlelock(void); 249dd84a43cSPoul-Henning Kamp 250dd84a43cSPoul-Henning Kamp /* geom_subr.c */ 251d2bae332SPoul-Henning Kamp int g_access(struct g_consumer *cp, int nread, int nwrite, int nexcl); 252dd84a43cSPoul-Henning Kamp int g_attach(struct g_consumer *cp, struct g_provider *pp); 25390f2be24SAlexander Motin int g_compare_names(const char *namea, const char *nameb); 254dd84a43cSPoul-Henning Kamp void g_destroy_consumer(struct g_consumer *cp); 255dd84a43cSPoul-Henning Kamp void g_destroy_geom(struct g_geom *pp); 256dd84a43cSPoul-Henning Kamp void g_destroy_provider(struct g_provider *pp); 257503abe45SPoul-Henning Kamp void g_detach(struct g_consumer *cp); 258dd84a43cSPoul-Henning Kamp void g_error_provider(struct g_provider *pp, int error); 259d6c5e716SPoul-Henning Kamp struct g_provider *g_provider_by_name(char const *arg); 260a4ef1c5fSPoul-Henning Kamp int g_getattr__(const char *attr, struct g_consumer *cp, void *var, int len); 261a4ef1c5fSPoul-Henning Kamp #define g_getattr(a, c, v) g_getattr__((a), (c), (v), sizeof *(v)) 262709a6266SMarcel Moolenaar int g_handleattr(struct bio *bp, const char *attribute, const void *val, 263709a6266SMarcel Moolenaar int len); 2640f9d3dbaSPoul-Henning Kamp int g_handleattr_int(struct bio *bp, const char *attribute, int val); 2650f9d3dbaSPoul-Henning Kamp int g_handleattr_off_t(struct bio *bp, const char *attribute, off_t val); 266709a6266SMarcel Moolenaar int g_handleattr_str(struct bio *bp, const char *attribute, const char *str); 267dd84a43cSPoul-Henning Kamp struct g_consumer * g_new_consumer(struct g_geom *gp); 2680f9d3dbaSPoul-Henning Kamp struct g_geom * g_new_geomf(struct g_class *mp, const char *fmt, ...); 2690f9d3dbaSPoul-Henning Kamp struct g_provider * g_new_providerf(struct g_geom *gp, const char *fmt, ...); 2708a8fcb00SMarcel Moolenaar int g_retaste(struct g_class *mp); 271dd84a43cSPoul-Henning Kamp void g_spoil(struct g_provider *pp, struct g_consumer *cp); 272dd84a43cSPoul-Henning Kamp int g_std_access(struct g_provider *pp, int dr, int dw, int de); 273dd84a43cSPoul-Henning Kamp void g_std_done(struct bio *bp); 274dd84a43cSPoul-Henning Kamp void g_std_spoiled(struct g_consumer *cp); 275d6227ae7SPoul-Henning Kamp void g_wither_geom(struct g_geom *gp, int error); 276725419afSPoul-Henning Kamp void g_wither_geom_close(struct g_geom *gp, int error); 277d99c1559SMarcel Moolenaar void g_wither_provider(struct g_provider *pp, int error); 278dd84a43cSPoul-Henning Kamp 279679f8b7eSPawel Jakub Dawidek #if defined(DIAGNOSTIC) || defined(DDB) 2803d1d5bc3SPoul-Henning Kamp int g_valid_obj(void const *ptr); 281679f8b7eSPawel Jakub Dawidek #endif 282679f8b7eSPawel Jakub Dawidek #ifdef DIAGNOSTIC 2833d1d5bc3SPoul-Henning Kamp #define G_VALID_CLASS(foo) \ 2843d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 1, ("%p is not a g_class", foo)) 2853d1d5bc3SPoul-Henning Kamp #define G_VALID_GEOM(foo) \ 2863d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 2, ("%p is not a g_geom", foo)) 2873d1d5bc3SPoul-Henning Kamp #define G_VALID_CONSUMER(foo) \ 2883d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 3, ("%p is not a g_consumer", foo)) 2893d1d5bc3SPoul-Henning Kamp #define G_VALID_PROVIDER(foo) \ 2903d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(foo) == 4, ("%p is not a g_provider", foo)) 2913d1d5bc3SPoul-Henning Kamp #else 2923d1d5bc3SPoul-Henning Kamp #define G_VALID_CLASS(foo) do { } while (0) 2933d1d5bc3SPoul-Henning Kamp #define G_VALID_GEOM(foo) do { } while (0) 2943d1d5bc3SPoul-Henning Kamp #define G_VALID_CONSUMER(foo) do { } while (0) 2953d1d5bc3SPoul-Henning Kamp #define G_VALID_PROVIDER(foo) do { } while (0) 2963d1d5bc3SPoul-Henning Kamp #endif 2973d1d5bc3SPoul-Henning Kamp 2986c87f8d5SPoul-Henning Kamp int g_modevent(module_t, int, void *); 2996c87f8d5SPoul-Henning Kamp 300dd84a43cSPoul-Henning Kamp /* geom_io.c */ 301dd84a43cSPoul-Henning Kamp struct bio * g_clone_bio(struct bio *); 3024bec0ff1SPawel Jakub Dawidek struct bio * g_duplicate_bio(struct bio *); 303dd84a43cSPoul-Henning Kamp void g_destroy_bio(struct bio *); 30472840432SPoul-Henning Kamp void g_io_deliver(struct bio *bp, int error); 3050d3f37a8SPoul-Henning Kamp int g_io_getattr(const char *attr, struct g_consumer *cp, int *len, void *ptr); 306c3618c65SPawel Jakub Dawidek int g_io_flush(struct g_consumer *cp); 3076231f75bSLuigi Rizzo int g_register_classifier(struct g_classifier_hook *hook); 3086231f75bSLuigi Rizzo void g_unregister_classifier(struct g_classifier_hook *hook); 309dd84a43cSPoul-Henning Kamp void g_io_request(struct bio *bp, struct g_consumer *cp); 310dd84a43cSPoul-Henning Kamp struct bio *g_new_bio(void); 311a2033c96SPoul-Henning Kamp struct bio *g_alloc_bio(void); 312dd84a43cSPoul-Henning Kamp void * g_read_data(struct g_consumer *cp, off_t offset, off_t length, int *error); 31390b1cd56SPoul-Henning Kamp int g_write_data(struct g_consumer *cp, off_t offset, void *ptr, off_t length); 3142b17fb95SPawel Jakub Dawidek int g_delete_data(struct g_consumer *cp, off_t offset, off_t length); 31572e33095SPawel Jakub Dawidek void g_print_bio(struct bio *bp); 316dd84a43cSPoul-Henning Kamp 317dd84a43cSPoul-Henning Kamp /* geom_kern.c / geom_kernsim.c */ 318dd84a43cSPoul-Henning Kamp 319dd84a43cSPoul-Henning Kamp #ifdef _KERNEL 320dd84a43cSPoul-Henning Kamp 321e8c85a50SPawel Jakub Dawidek extern struct sx topology_lock; 322e8c85a50SPawel Jakub Dawidek 32395c24b31SPoul-Henning Kamp struct g_kerneldump { 32495c24b31SPoul-Henning Kamp off_t offset; 32595c24b31SPoul-Henning Kamp off_t length; 32606f4c96dSAlexander Motin struct dumperinfo di; 32795c24b31SPoul-Henning Kamp }; 32895c24b31SPoul-Henning Kamp 329dd84a43cSPoul-Henning Kamp MALLOC_DECLARE(M_GEOM); 330dd84a43cSPoul-Henning Kamp 331dd84a43cSPoul-Henning Kamp static __inline void * 332dd84a43cSPoul-Henning Kamp g_malloc(int size, int flags) 333dd84a43cSPoul-Henning Kamp { 334dd84a43cSPoul-Henning Kamp void *p; 335dd84a43cSPoul-Henning Kamp 336dd84a43cSPoul-Henning Kamp p = malloc(size, M_GEOM, flags); 337dd84a43cSPoul-Henning Kamp return (p); 338dd84a43cSPoul-Henning Kamp } 339dd84a43cSPoul-Henning Kamp 340dd84a43cSPoul-Henning Kamp static __inline void 341dd84a43cSPoul-Henning Kamp g_free(void *ptr) 342dd84a43cSPoul-Henning Kamp { 3433d1d5bc3SPoul-Henning Kamp 3443d1d5bc3SPoul-Henning Kamp #ifdef DIAGNOSTIC 345e8c85a50SPawel Jakub Dawidek if (sx_xlocked(&topology_lock)) { 3463d1d5bc3SPoul-Henning Kamp KASSERT(g_valid_obj(ptr) == 0, 347e8c85a50SPawel Jakub Dawidek ("g_free(%p) of live object, type %d", ptr, 348e8c85a50SPawel Jakub Dawidek g_valid_obj(ptr))); 349e8c85a50SPawel Jakub Dawidek } 3503d1d5bc3SPoul-Henning Kamp #endif 351dd84a43cSPoul-Henning Kamp free(ptr, M_GEOM); 352dd84a43cSPoul-Henning Kamp } 353dd84a43cSPoul-Henning Kamp 3544b8374a7SPoul-Henning Kamp #define g_topology_lock() \ 3554b8374a7SPoul-Henning Kamp do { \ 3564b8374a7SPoul-Henning Kamp mtx_assert(&Giant, MA_NOTOWNED); \ 3574b8374a7SPoul-Henning Kamp sx_xlock(&topology_lock); \ 3584b8374a7SPoul-Henning Kamp } while (0) 3594b8374a7SPoul-Henning Kamp 36054bab03fSPawel Jakub Dawidek #define g_topology_try_lock() sx_try_xlock(&topology_lock) 36154bab03fSPawel Jakub Dawidek 3624b8374a7SPoul-Henning Kamp #define g_topology_unlock() \ 3634b8374a7SPoul-Henning Kamp do { \ 3644b8374a7SPoul-Henning Kamp sx_xunlock(&topology_lock); \ 3654b8374a7SPoul-Henning Kamp } while (0) 3664b8374a7SPoul-Henning Kamp 3674b8374a7SPoul-Henning Kamp #define g_topology_assert() \ 3684b8374a7SPoul-Henning Kamp do { \ 3694b8374a7SPoul-Henning Kamp sx_assert(&topology_lock, SX_XLOCKED); \ 3704b8374a7SPoul-Henning Kamp } while (0) 371dd84a43cSPoul-Henning Kamp 372692498b0SPawel Jakub Dawidek #define g_topology_assert_not() \ 373692498b0SPawel Jakub Dawidek do { \ 374692498b0SPawel Jakub Dawidek sx_assert(&topology_lock, SX_UNLOCKED); \ 375692498b0SPawel Jakub Dawidek } while (0) 376692498b0SPawel Jakub Dawidek 3779061251fSJaakko Heinonen #define g_topology_sleep(chan, timo) \ 3789061251fSJaakko Heinonen sx_sleep(chan, &topology_lock, 0, "gtopol", timo) 3799061251fSJaakko Heinonen 380e805e8f0SPoul-Henning Kamp #define DECLARE_GEOM_CLASS(class, name) \ 3816c87f8d5SPoul-Henning Kamp static moduledata_t name##_mod = { \ 3826c87f8d5SPoul-Henning Kamp #name, g_modevent, &class \ 3836c87f8d5SPoul-Henning Kamp }; \ 3846c87f8d5SPoul-Henning Kamp DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 385dd84a43cSPoul-Henning Kamp 3867d590cc4SPoul-Henning Kamp #endif /* _KERNEL */ 387dd84a43cSPoul-Henning Kamp 38863728c47SPoul-Henning Kamp /* geom_ctl.c */ 38941063f93SMarcel Moolenaar int gctl_set_param(struct gctl_req *req, const char *param, void const *ptr, int len); 39041063f93SMarcel Moolenaar void gctl_set_param_err(struct gctl_req *req, const char *param, void const *ptr, int len); 39163728c47SPoul-Henning Kamp void *gctl_get_param(struct gctl_req *req, const char *param, int *len); 39283d771deSPoul-Henning Kamp char const *gctl_get_asciiparam(struct gctl_req *req, const char *param); 393fb9483afSPoul-Henning Kamp void *gctl_get_paraml(struct gctl_req *req, const char *param, int len); 3945e165262SPawel Jakub Dawidek int gctl_error(struct gctl_req *req, const char *fmt, ...) __printflike(2, 3); 39583d771deSPoul-Henning Kamp struct g_class *gctl_get_class(struct gctl_req *req, char const *arg); 39683d771deSPoul-Henning Kamp struct g_geom *gctl_get_geom(struct gctl_req *req, struct g_class *mpr, char const *arg); 39783d771deSPoul-Henning Kamp struct g_provider *gctl_get_provider(struct gctl_req *req, char const *arg); 39863728c47SPoul-Henning Kamp 399efb9df5cSPoul-Henning Kamp #endif /* _GEOM_GEOM_H_ */ 400