1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _G_NOP_H_
30#define _G_NOP_H_
31
32#define G_NOP_CLASS_NAME "NOP"
33#define G_NOP_VERSION 4
34#define G_NOP_SUFFIX ".nop"
35/*
36 * Special flag to instruct gnop to passthrough the underlying provider's
37 * physical path
38 */
39#define G_NOP_PHYSPATH_PASSTHROUGH "\255"
40
41#ifdef _KERNEL
42#define G_NOP_DEBUG(lvl, ...) \
43 _GEOM_DEBUG("GEOM_NOP", g_nop_debug, (lvl), NULL, __VA_ARGS__)
44#define G_NOP_LOGREQLVL(lvl, bp, ...) \
45 _GEOM_DEBUG("GEOM_NOP", g_nop_debug, (lvl), (bp), __VA_ARGS__)
46#define G_NOP_LOGREQ(bp, ...) G_NOP_LOGREQLVL(2, bp, __VA_ARGS__)
47
48struct g_nop_delay;
49
50TAILQ_HEAD(g_nop_delay_head, g_nop_delay);
51
52struct g_nop_softc {
53 int sc_error;
54 off_t sc_offset;
55 off_t sc_explicitsize;
56 off_t sc_stripesize;
57 off_t sc_stripeoffset;
58 u_int sc_rfailprob;
59 u_int sc_wfailprob;
60 u_int sc_delaymsec;
61 u_int sc_rdelayprob;
62 u_int sc_wdelayprob;
63 u_int sc_count_until_fail;
64 uintmax_t sc_reads;
65 uintmax_t sc_writes;
66 uintmax_t sc_deletes;
67 uintmax_t sc_getattrs;
68 uintmax_t sc_flushes;
69 uintmax_t sc_cmd0s;
70 uintmax_t sc_cmd1s;
71 uintmax_t sc_cmd2s;
72 uintmax_t sc_speedups;
73 uintmax_t sc_readbytes;
74 uintmax_t sc_wrotebytes;
75 char *sc_physpath;
76 struct mtx sc_lock;
77 struct g_nop_delay_head sc_head_delay;
78};
79#endif /* _KERNEL */
80
81#endif /* _G_NOP_H_ */