1*fa9e4066Sahrens /* 2*fa9e4066Sahrens * CDDL HEADER START 3*fa9e4066Sahrens * 4*fa9e4066Sahrens * The contents of this file are subject to the terms of the 5*fa9e4066Sahrens * Common Development and Distribution License, Version 1.0 only 6*fa9e4066Sahrens * (the "License"). You may not use this file except in compliance 7*fa9e4066Sahrens * with the License. 8*fa9e4066Sahrens * 9*fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 11*fa9e4066Sahrens * See the License for the specific language governing permissions 12*fa9e4066Sahrens * and limitations under the License. 13*fa9e4066Sahrens * 14*fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 15*fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 17*fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 18*fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 19*fa9e4066Sahrens * 20*fa9e4066Sahrens * CDDL HEADER END 21*fa9e4066Sahrens */ 22*fa9e4066Sahrens /* 23*fa9e4066Sahrens * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*fa9e4066Sahrens * Use is subject to license terms. 25*fa9e4066Sahrens */ 26*fa9e4066Sahrens 27*fa9e4066Sahrens #ifndef _SYS_ZIO_CHECKSUM_H 28*fa9e4066Sahrens #define _SYS_ZIO_CHECKSUM_H 29*fa9e4066Sahrens 30*fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 31*fa9e4066Sahrens 32*fa9e4066Sahrens #include <sys/zio.h> 33*fa9e4066Sahrens 34*fa9e4066Sahrens #ifdef __cplusplus 35*fa9e4066Sahrens extern "C" { 36*fa9e4066Sahrens #endif 37*fa9e4066Sahrens 38*fa9e4066Sahrens /* 39*fa9e4066Sahrens * Signature for checksum functions. 40*fa9e4066Sahrens */ 41*fa9e4066Sahrens typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp); 42*fa9e4066Sahrens 43*fa9e4066Sahrens /* 44*fa9e4066Sahrens * Information about each checksum function. 45*fa9e4066Sahrens */ 46*fa9e4066Sahrens typedef struct zio_checksum_info { 47*fa9e4066Sahrens zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */ 48*fa9e4066Sahrens int ci_correctable; /* number of correctable bits */ 49*fa9e4066Sahrens int ci_zbt; /* uses zio block tail? */ 50*fa9e4066Sahrens char *ci_name; /* descriptive name */ 51*fa9e4066Sahrens } zio_checksum_info_t; 52*fa9e4066Sahrens 53*fa9e4066Sahrens extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS]; 54*fa9e4066Sahrens 55*fa9e4066Sahrens /* 56*fa9e4066Sahrens * Checksum routines. 57*fa9e4066Sahrens */ 58*fa9e4066Sahrens extern zio_checksum_t fletcher_2_native; 59*fa9e4066Sahrens extern zio_checksum_t fletcher_4_native; 60*fa9e4066Sahrens 61*fa9e4066Sahrens extern zio_checksum_t fletcher_2_byteswap; 62*fa9e4066Sahrens extern zio_checksum_t fletcher_4_byteswap; 63*fa9e4066Sahrens 64*fa9e4066Sahrens extern zio_checksum_t zio_checksum_SHA256; 65*fa9e4066Sahrens 66*fa9e4066Sahrens extern void zio_checksum(uint_t checksum, zio_cksum_t *zcp, 67*fa9e4066Sahrens void *data, uint64_t size); 68*fa9e4066Sahrens extern int zio_checksum_error(zio_t *zio); 69*fa9e4066Sahrens 70*fa9e4066Sahrens #ifdef __cplusplus 71*fa9e4066Sahrens } 72*fa9e4066Sahrens #endif 73*fa9e4066Sahrens 74*fa9e4066Sahrens #endif /* _SYS_ZIO_CHECKSUM_H */ 75