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.
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.
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]
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 #ifndef _SYS_ZIO_CHECKSUM_H
27 #define _SYS_ZIO_CHECKSUM_H
36 * Signature for checksum functions.
38 typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp);
41 * Information about each checksum function.
43 typedef struct zio_checksum_info {
44 zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */
45 int ci_correctable; /* number of correctable bits */
46 int ci_zbt; /* uses zio block tail? */
47 char *ci_name; /* descriptive name */
48 } zio_checksum_info_t;
50 extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS];
55 extern zio_checksum_t fletcher_2_native;
56 extern zio_checksum_t fletcher_4_native;
57 extern zio_checksum_t fletcher_4_incremental_native;
59 extern zio_checksum_t fletcher_2_byteswap;
60 extern zio_checksum_t fletcher_4_byteswap;
61 extern zio_checksum_t fletcher_4_incremental_byteswap;
63 extern zio_checksum_t zio_checksum_SHA256;
65 extern void zio_checksum_compute(zio_t *zio, enum zio_checksum checksum,
66 void *data, uint64_t size);
67 extern int zio_checksum_error(zio_t *zio);
73 #endif /* _SYS_ZIO_CHECKSUM_H */