1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5c9431fa1Sahl * Common Development and Distribution License (the "License"). 6c9431fa1Sahl * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21c9431fa1Sahl 22fa9e4066Sahrens /* 23b24ab676SJeff Bonwick * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24fa9e4066Sahrens * Use is subject to license terms. 25fa9e4066Sahrens */ 26a6f561b4SSašo Kiselkov /* 27a6f561b4SSašo Kiselkov * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 28*770499e1SDan Kimmel * Copyright (c) 2015, 2016 by Delphix. All rights reserved. 29a6f561b4SSašo Kiselkov */ 30fa9e4066Sahrens 31fa9e4066Sahrens #ifndef _SYS_ZIO_COMPRESS_H 32fa9e4066Sahrens #define _SYS_ZIO_COMPRESS_H 33fa9e4066Sahrens 34*770499e1SDan Kimmel #include <sys/abd.h> 35*770499e1SDan Kimmel 36fa9e4066Sahrens #ifdef __cplusplus 37fa9e4066Sahrens extern "C" { 38fa9e4066Sahrens #endif 39fa9e4066Sahrens 405602294fSDan Kimmel enum zio_compress { 415602294fSDan Kimmel ZIO_COMPRESS_INHERIT = 0, 425602294fSDan Kimmel ZIO_COMPRESS_ON, 435602294fSDan Kimmel ZIO_COMPRESS_OFF, 445602294fSDan Kimmel ZIO_COMPRESS_LZJB, 455602294fSDan Kimmel ZIO_COMPRESS_EMPTY, 465602294fSDan Kimmel ZIO_COMPRESS_GZIP_1, 475602294fSDan Kimmel ZIO_COMPRESS_GZIP_2, 485602294fSDan Kimmel ZIO_COMPRESS_GZIP_3, 495602294fSDan Kimmel ZIO_COMPRESS_GZIP_4, 505602294fSDan Kimmel ZIO_COMPRESS_GZIP_5, 515602294fSDan Kimmel ZIO_COMPRESS_GZIP_6, 525602294fSDan Kimmel ZIO_COMPRESS_GZIP_7, 535602294fSDan Kimmel ZIO_COMPRESS_GZIP_8, 545602294fSDan Kimmel ZIO_COMPRESS_GZIP_9, 555602294fSDan Kimmel ZIO_COMPRESS_ZLE, 565602294fSDan Kimmel ZIO_COMPRESS_LZ4, 575602294fSDan Kimmel ZIO_COMPRESS_FUNCTIONS 585602294fSDan Kimmel }; 595602294fSDan Kimmel 60f7170741SWill Andrews /* Common signature for all zio compress functions. */ 61fa9e4066Sahrens typedef size_t zio_compress_func_t(void *src, void *dst, 62c9431fa1Sahl size_t s_len, size_t d_len, int); 63f7170741SWill Andrews /* Common signature for all zio decompress functions. */ 64fa9e4066Sahrens typedef int zio_decompress_func_t(void *src, void *dst, 65c9431fa1Sahl size_t s_len, size_t d_len, int); 66*770499e1SDan Kimmel /* 67*770499e1SDan Kimmel * Common signature for all zio decompress functions using an ABD as input. 68*770499e1SDan Kimmel * This is helpful if you have both compressed ARC and scatter ABDs enabled, 69*770499e1SDan Kimmel * but is not a requirement for all compression algorithms. 70*770499e1SDan Kimmel */ 71*770499e1SDan Kimmel typedef int zio_decompress_abd_func_t(abd_t *src, void *dst, 72*770499e1SDan Kimmel size_t s_len, size_t d_len, int); 73fa9e4066Sahrens 74fa9e4066Sahrens /* 75fa9e4066Sahrens * Information about each compression function. 76fa9e4066Sahrens */ 77fa9e4066Sahrens typedef struct zio_compress_info { 78*770499e1SDan Kimmel char *ci_name; 79*770499e1SDan Kimmel int ci_level; 80*770499e1SDan Kimmel zio_compress_func_t *ci_compress; 81*770499e1SDan Kimmel zio_decompress_func_t *ci_decompress; 82fa9e4066Sahrens } zio_compress_info_t; 83fa9e4066Sahrens 84fa9e4066Sahrens extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS]; 85fa9e4066Sahrens 86fa9e4066Sahrens /* 87fa9e4066Sahrens * Compression routines. 88fa9e4066Sahrens */ 89c9431fa1Sahl extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len, 90c9431fa1Sahl int level); 91c9431fa1Sahl extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len, 92c9431fa1Sahl int level); 93c9431fa1Sahl extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len, 94c9431fa1Sahl int level); 95c9431fa1Sahl extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len, 96c9431fa1Sahl int level); 97b24ab676SJeff Bonwick extern size_t zle_compress(void *src, void *dst, size_t s_len, size_t d_len, 98b24ab676SJeff Bonwick int level); 99b24ab676SJeff Bonwick extern int zle_decompress(void *src, void *dst, size_t s_len, size_t d_len, 100b24ab676SJeff Bonwick int level); 101a6f561b4SSašo Kiselkov extern size_t lz4_compress(void *src, void *dst, size_t s_len, size_t d_len, 102a6f561b4SSašo Kiselkov int level); 103a6f561b4SSašo Kiselkov extern int lz4_decompress(void *src, void *dst, size_t s_len, size_t d_len, 104a6f561b4SSašo Kiselkov int level); 105fa9e4066Sahrens 106fa9e4066Sahrens /* 107fa9e4066Sahrens * Compress and decompress data if necessary. 108fa9e4066Sahrens */ 109*770499e1SDan Kimmel extern size_t zio_compress_data(enum zio_compress c, abd_t *src, void *dst, 110b24ab676SJeff Bonwick size_t s_len); 111*770499e1SDan Kimmel extern int zio_decompress_data(enum zio_compress c, abd_t *src, void *dst, 112*770499e1SDan Kimmel size_t s_len, size_t d_len); 113*770499e1SDan Kimmel extern int zio_decompress_data_buf(enum zio_compress c, void *src, void *dst, 114b24ab676SJeff Bonwick size_t s_len, size_t d_len); 115fa9e4066Sahrens 116fa9e4066Sahrens #ifdef __cplusplus 117fa9e4066Sahrens } 118fa9e4066Sahrens #endif 119fa9e4066Sahrens 120fa9e4066Sahrens #endif /* _SYS_ZIO_COMPRESS_H */ 121