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/*-
* Copyright (c) 2002 Poul-Henning Kamp
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by Poul-Henning Kamp
* and NAI Labs, the Security Research Division of Network Associates, Inc.
* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
* DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
LIST_HEAD(class_list_head, g_class);
TAILQ_HEAD(g_tailq_head, g_geom);
TAILQ_HEAD(event_tailq_head, g_event);
extern struct event_tailq_head events;
extern int g_collectstats;
extern int g_debugflags;
/*
* 1 G_T_TOPOLOGY
* 2 G_T_BIO
* 4 G_T_ACCESS
* 8 Enable sanity checks
* 16 Allow footshooting on rank#1 providers
* 32 G_T_DETAILS
*/
#define G_F_DISKIOCTL 64
#define G_F_CTLDUMP 128
#define G_N_EVENTREFS 20
struct g_event {
TAILQ_ENTRY(g_event) events;
void *arg;
g_call_me_t *func;
void *ref[G_N_EVENTREFS];
};
/*
* We actually have a number of drivers sharing the same major number
* so we coordinate the major/minor usage here
*/
#define GEOM_MAJOR 4
#define GEOM_MINOR_STATS 0
#define GEOM_MINOR_PROVIDERS 10
/* geom_dump.c */
void g_confxml(void *, int flag);
void g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp);
void g_confdot(void *, int flag);
void g_conftxt(void *, int flag);
/* geom_event.c */
void g_event_init(void);
void g_run_events(void);
void g_stall_events(void);
void g_release_events(void);
/* geom_subr.c */
extern struct class_list_head g_classes;
extern char *g_wait_event, *g_wait_sim, *g_wait_up, *g_wait_down;
/* geom_io.c */
void g_io_init(void);
void g_io_schedule_down(struct thread *tp);
void g_io_schedule_up(struct thread *tp);
/* geom_kern.c / geom_kernsim.c */
void g_init(void);
extern int g_shutdown;
/* geom_ctl.c */
void g_ctl_init(void);
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