projects / mirror_zfs.git / blame
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|---|---|---|
| 34dc7c2f BB |
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 | /* | |
| b128c09f | 22 | * Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
| 34dc7c2f BB |
23 | * Use is subject to license terms. |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef _SYS_ZIO_CHECKSUM_H | |
| 27 | #define _SYS_ZIO_CHECKSUM_H | |
| 28 | ||
| 34dc7c2f BB |
29 | #include <sys/zio.h> |
| 30 | ||
| 31 | #ifdef __cplusplus | |
| 32 | extern "C" { | |
| 33 | #endif | |
| 34 | ||
| 35 | /* | |
| 36 | * Signature for checksum functions. | |
| 37 | */ | |
| 38 | typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp); | |
| 39 | ||
| 40 | /* | |
| 41 | * Information about each checksum function. | |
| 42 | */ | |
| 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; | |
| 49 | ||
| 50 | extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS]; | |
| 51 | ||
| 52 | /* | |
| 53 | * Checksum routines. | |
| 54 | */ | |
| 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; | |
| 58 | ||
| 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; | |
| 62 | ||
| 63 | extern zio_checksum_t zio_checksum_SHA256; | |
| 64 | ||
| b128c09f | 65 | extern void zio_checksum_compute(zio_t *zio, enum zio_checksum checksum, |
| 34dc7c2f BB |
66 | void *data, uint64_t size); |
| 67 | extern int zio_checksum_error(zio_t *zio); | |
| 68 | ||
| 69 | #ifdef __cplusplus | |
| 70 | } | |
| 71 | #endif | |
| 72 | ||
| 73 | #endif /* _SYS_ZIO_CHECKSUM_H */ |