106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
/*-
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* Various internal actions are tracked by tagging g_event[s] onto
|
|
* an internal eventqueue.
|
|
*/
|
|
enum g_events {
|
|
EV_NEW_CLASS, /* class */
|
|
EV_NEW_PROVIDER, /* provider */
|
|
EV_SPOILED, /* provider, consumer */
|
|
EV_CALL_ME, /* func, arg */
|
|
EV_LAST
|
|
};
|
|
|
|
struct g_event {
|
|
enum g_events event;
|
|
TAILQ_ENTRY(g_event) events;
|
|
struct g_class *class;
|
|
struct g_geom *geom;
|
|
struct g_provider *provider;
|
|
struct g_consumer *consumer;
|
|
void *arg;
|
|
g_call_me_t *func;
|
|
};
|
|
|
|
/*
|
|
* 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 *);
|
|
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 *);
|
|
void g_conftxt(void *);
|
|
|
|
/* geom_event.c */
|
|
void g_event_init(void);
|
|
void g_post_event(enum g_events ev, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp);
|
|
void g_run_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);
|