xref: /illumos-gate/usr/src/common/zfs/zfs_fletcher.h (revision 241c90a0)
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 /*
26  * Copyright 2013 Saso Kiselkov. All rights reserved.
27  * Copyright (c) 2016 by Delphix. All rights reserved.
28  */
29 
30 #ifndef	_ZFS_FLETCHER_H
31 #define	_ZFS_FLETCHER_H
32 
33 #include <sys/types.h>
34 #include <sys/spa.h>
35 
36 #ifdef	__cplusplus
37 extern "C" {
38 #endif
39 
40 /*
41  * fletcher checksum functions
42  */
43 
44 void fletcher_init(zio_cksum_t *);
45 void fletcher_2_native(const void *, size_t, const void *, zio_cksum_t *);
46 void fletcher_2_byteswap(const void *, size_t, const void *, zio_cksum_t *);
47 int fletcher_2_incremental_native(void *, size_t, void *);
48 int fletcher_2_incremental_byteswap(void *, size_t, void *);
49 void fletcher_4_native(const void *, size_t, const void *, zio_cksum_t *);
50 void fletcher_4_byteswap(const void *, size_t, const void *, zio_cksum_t *);
51 int fletcher_4_incremental_native(void *, size_t, void *);
52 int fletcher_4_incremental_byteswap(void *, size_t, void *);
53 
54 #ifdef	__cplusplus
55 }
56 #endif
57 
58 #endif	/* _ZFS_FLETCHER_H */
59