geom_int.h revision 260385 
1/*-
2 * Copyright (c) 2002 Poul-Henning Kamp
3 * Copyright (c) 2002 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7 * and NAI Labs, the Security Research Division of Network Associates, Inc.
8 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
9 * DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. The names of the authors may not be used to endorse or promote
20 *    products derived from this software without specific prior written
21 *    permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD: stable/10/sys/geom/geom_int.h 260385 2014-01-07 01:32:23Z scottl $
36 */
37
38LIST_HEAD(class_list_head, g_class);
39TAILQ_HEAD(g_tailq_head, g_geom);
40
41extern int g_collectstats;
42#define G_STATS_PROVIDERS	1	/* Collect I/O stats for providers */
43#define G_STATS_CONSUMERS	2	/* Collect I/O stats for consumers */
44
45extern int g_debugflags;
46/*
47 * 1	G_T_TOPOLOGY
48 * 2	G_T_BIO
49 * 4	G_T_ACCESS
50 * 8	(unused)
51 * 16	Allow footshooting on rank#1 providers
52 * 32	G_T_DETAILS
53 */
54#define G_F_DISKIOCTL	64
55#define G_F_CTLDUMP	128
56
57/* geom_dump.c */
58void g_confxml(void *, int flag);
59void g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp);
60void g_confdot(void *, int flag);
61void g_conftxt(void *, int flag);
62
63/* geom_event.c */
64void g_event_init(void);
65void g_run_events(void);
66void g_do_wither(void);
67
68/* geom_subr.c */
69extern struct class_list_head g_classes;
70extern char *g_wait_event, *g_wait_sim, *g_wait_up, *g_wait_down;
71void g_wither_washer(void);
72
73/* geom_io.c */
74void g_io_init(void);
75void g_io_schedule_down(struct thread *tp);
76void g_io_schedule_up(struct thread *tp);
77
78/* geom_kern.c / geom_kernsim.c */
79void g_init(void);
80extern int g_shutdown;
81extern int g_notaste;
82
83/* geom_ctl.c */
84void g_ctl_init(void);
85