xref: /freebsd/sys/geom/nop/g_nop.h (revision d06955f9bdb1416d9196043ed781f9b36dae9adc)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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  * $FreeBSD$
29  */
30 
31 #ifndef	_G_NOP_H_
32 #define	_G_NOP_H_
33 
34 #define	G_NOP_CLASS_NAME	"NOP"
35 #define	G_NOP_VERSION		4
36 #define	G_NOP_SUFFIX		".nop"
37 
38 #ifdef _KERNEL
39 #define	G_NOP_DEBUG(lvl, ...)	do {					\
40 	if (g_nop_debug >= (lvl)) {					\
41 		printf("GEOM_NOP");					\
42 		if (g_nop_debug > 0)					\
43 			printf("[%u]", lvl);				\
44 		printf(": ");						\
45 		printf(__VA_ARGS__);					\
46 		printf("\n");						\
47 	}								\
48 } while (0)
49 #define	G_NOP_LOGREQ(bp, ...)	G_NOP_LOGREQLVL(2, bp, __VA_ARGS__)
50 #define G_NOP_LOGREQLVL(lvl, bp, ...) do {				\
51 	if (g_nop_debug >= (lvl)) {					\
52 		printf("GEOM_NOP[%d]: ", (lvl));			\
53 		printf(__VA_ARGS__);					\
54 		printf(" ");						\
55 		g_print_bio(bp);					\
56 		printf("\n");						\
57 	}								\
58 } while (0)
59 
60 struct g_nop_softc {
61 	int		sc_error;
62 	off_t		sc_offset;
63 	off_t		sc_explicitsize;
64 	off_t		sc_stripesize;
65 	off_t		sc_stripeoffset;
66 	u_int		sc_rfailprob;
67 	u_int		sc_wfailprob;
68 	uintmax_t	sc_reads;
69 	uintmax_t	sc_writes;
70 	uintmax_t	sc_deletes;
71 	uintmax_t	sc_getattrs;
72 	uintmax_t	sc_flushes;
73 	uintmax_t	sc_cmd0s;
74 	uintmax_t	sc_cmd1s;
75 	uintmax_t	sc_cmd2s;
76 	uintmax_t	sc_readbytes;
77 	uintmax_t	sc_wrotebytes;
78 	struct mtx	sc_lock;
79 };
80 #endif	/* _KERNEL */
81 
82 #endif	/* _G_NOP_H_ */
83