xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/vdev_raidz.h (revision 16b76d3cb933ff92018a2a75594449010192eacb)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (C) 2016 Gvozden Neskovic <neskovic@compeng.uni-frankfurt.de>.
23  * Copyright 2020 Joyent, Inc.
24  */
25 
26 #ifndef _SYS_VDEV_RAIDZ_H
27 #define	_SYS_VDEV_RAIDZ_H
28 
29 #include <sys/types.h>
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 struct zio;
36 struct raidz_map;
37 #if !defined(_KERNEL)
38 struct kernel_param {};
39 #endif
40 
41 /*
42  * vdev_raidz interface
43  */
44 struct raidz_map *	vdev_raidz_map_alloc(struct zio *, uint64_t,
45     uint64_t, uint64_t);
46 void		vdev_raidz_map_free(struct raidz_map *);
47 void 		vdev_raidz_generate_parity(struct raidz_map *);
48 int 		vdev_raidz_reconstruct(struct raidz_map *, const int *, int);
49 
50 /*
51  * vdev_raidz_math interface
52  */
53 void	vdev_raidz_math_init(void);
54 void	vdev_raidz_math_fini(void);
55 const struct raidz_impl_ops *vdev_raidz_math_get_ops(void);
56 int	vdev_raidz_math_generate(struct raidz_map *);
57 int	vdev_raidz_math_reconstruct(struct raidz_map *, const int *,
58 	    const int *, const int);
59 int	vdev_raidz_impl_set(const char *);
60 
61 #ifdef	__cplusplus
62 }
63 #endif
64 
65 #endif /* _SYS_VDEV_RAIDZ_H */
66