xref: /openbmc/u-boot/include/zfs/zio_checksum.h (revision 552a848e)
1 /*
2  *  GRUB  --  GRand Unified Bootloader
3  *  Copyright (C) 1999,2000,2001,2002,2003,2004  Free Software Foundation, Inc.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 /*
8  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
9  * Use is subject to license terms.
10  */
11 
12 #ifndef _SYS_ZIO_CHECKSUM_H
13 #define	_SYS_ZIO_CHECKSUM_H
14 
15 /*
16  * Signature for checksum functions.
17  */
18 typedef void zio_checksum_t(const void *data, uint64_t size,
19 			    zfs_endian_t endian, zio_cksum_t *zcp);
20 
21 /*
22  * Information about each checksum function.
23  */
24 typedef struct zio_checksum_info {
25 	zio_checksum_t	*ci_func; /* checksum function for each byteorder */
26 	int		ci_correctable;	/* number of correctable bits	*/
27 	int		ci_eck;		/* uses zio embedded checksum? */
28 	char		*ci_name;	/* descriptive name */
29 } zio_checksum_info_t;
30 
31 extern void zio_checksum_SHA256(const void *, uint64_t,
32 				 zfs_endian_t endian, zio_cksum_t *);
33 extern void fletcher_2_endian(const void *, uint64_t, zfs_endian_t endian,
34 			zio_cksum_t *);
35 extern void fletcher_4_endian(const void *, uint64_t, zfs_endian_t endian,
36 			zio_cksum_t *);
37 
38 #endif	/* _SYS_ZIO_CHECKSUM_H */
39