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📁 ..
📄 Makefile.am(2.18 KB)
📄 abd.h(4.25 KB)
📄 abd_impl.h(4.41 KB)
📄 aggsum.h(1.28 KB)
📄 arc.h(11.19 KB)
📄 arc_impl.h(33.15 KB)
📄 avl.h(9.16 KB)
📄 avl_impl.h(4.8 KB)
📄 bitops.h(3.2 KB)
📄 blkptr.h(914 B)
📄 bplist.h(1.6 KB)
📄 bpobj.h(3.21 KB)
📄 bptree.h(1.89 KB)
📄 bqueue.h(1.23 KB)
📄 btree.h(7.68 KB)
📁 crypto
📄 dataset_kstats.h(2.27 KB)
📄 dbuf.h(13.94 KB)
📄 ddt.h(7.96 KB)
📄 dmu.h(39.06 KB)
📄 dmu_impl.h(6.92 KB)
📄 dmu_objset.h(9.19 KB)
📄 dmu_recv.h(2.75 KB)
📄 dmu_redact.h(1.67 KB)
📄 dmu_send.h(2.54 KB)
📄 dmu_traverse.h(3.02 KB)
📄 dmu_tx.h(4.43 KB)
📄 dmu_zfetch.h(2.23 KB)
📄 dnode.h(22.41 KB)
📄 dsl_bookmark.h(5.05 KB)
📄 dsl_crypt.h(7.76 KB)
📄 dsl_dataset.h(18.62 KB)
📄 dsl_deadlist.h(4.21 KB)
📄 dsl_deleg.h(3.27 KB)
📄 dsl_destroy.h(2.19 KB)
📄 dsl_dir.h(7.67 KB)
📄 dsl_pool.h(6.23 KB)
📄 dsl_prop.h(4.38 KB)
📄 dsl_scan.h(7.11 KB)
📄 dsl_synctask.h(4.06 KB)
📄 dsl_userhold.h(1.84 KB)
📄 edonr.h(2.65 KB)
📄 efi_partition.h(16.28 KB)
📁 fm
📄 frame.h(935 B)
📁 fs
📄 hkdf.h(782 B)
📁 lua
📄 metaslab.h(5.48 KB)
📄 metaslab_impl.h(21.23 KB)
📄 mmp.h(2.37 KB)
📄 mntent.h(5.22 KB)
📄 mod.h(1.26 KB)
📄 multilist.h(3.27 KB)
📄 note.h(1.62 KB)
📄 nvpair.h(14.77 KB)
📄 nvpair_impl.h(2.23 KB)
📄 objlist.h(1.13 KB)
📄 pathname.h(2.12 KB)
📄 qat.h(5.86 KB)
📄 range_tree.h(9.73 KB)
📄 rrwlock.h(3.53 KB)
📄 sa.h(5.14 KB)
📄 sa_impl.h(8.29 KB)
📄 skein.h(6.69 KB)
📄 spa.h(46.07 KB)
📄 spa_boot.h(1.16 KB)
📄 spa_checkpoint.h(1.44 KB)
📄 spa_checksum.h(1.96 KB)
📄 spa_impl.h(18.25 KB)
📄 spa_log_spacemap.h(2.62 KB)
📄 space_map.h(8.7 KB)
📄 space_reftree.h(1.69 KB)
📁 sysevent
📄 sysevent.h(1.07 KB)
📄 txg.h(4.66 KB)
📄 txg_impl.h(4.77 KB)
📄 u8_textprep.h(3.59 KB)
📄 u8_textprep_data.h(1.41 MB)
📄 uberblock.h(1.36 KB)
📄 uberblock_impl.h(5.11 KB)
📄 uio_impl.h(1.58 KB)
📄 unique.h(1.56 KB)
📄 uuid.h(2.85 KB)
📄 vdev.h(8.18 KB)
📄 vdev_disk.h(1.65 KB)
📄 vdev_draid.h(3.43 KB)
📄 vdev_file.h(1.23 KB)
📄 vdev_impl.h(22.53 KB)
📄 vdev_indirect_births.h(2.31 KB)
📄 vdev_indirect_mapping.h(4.38 KB)
📄 vdev_initialize.h(1.39 KB)
📄 vdev_raidz.h(2.04 KB)
📄 vdev_raidz_impl.h(10.54 KB)
📄 vdev_rebuild.h(3.4 KB)
📄 vdev_removal.h(2.63 KB)
📄 vdev_trim.h(1.72 KB)
📄 xvattr.h(13.1 KB)
📄 zap.h(18.63 KB)
📄 zap_impl.h(6.79 KB)
📄 zap_leaf.h(7.84 KB)
📄 zcp.h(4.87 KB)
📄 zcp_global.h(742 B)
📄 zcp_iter.h(1.07 KB)
📄 zcp_prop.h(780 B)
📄 zcp_set.h(929 B)
📄 zfeature.h(2.42 KB)
📄 zfs_acl.h(8.08 KB)
📄 zfs_bootenv.h(1.41 KB)
📄 zfs_context.h(21.23 KB)
📄 zfs_debug.h(3.3 KB)
📄 zfs_delay.h(1.25 KB)
📄 zfs_file.h(2.06 KB)
📄 zfs_fuid.h(4.26 KB)
📄 zfs_ioctl.h(17.63 KB)
📄 zfs_ioctl_impl.h(3.1 KB)
📄 zfs_onexit.h(1.65 KB)
📄 zfs_project.h(2.35 KB)
📄 zfs_quota.h(1.57 KB)
📄 zfs_racct.h(1.12 KB)
📄 zfs_ratelimit.h(1.11 KB)
📄 zfs_refcount.h(4.15 KB)
📄 zfs_rlock.h(2.54 KB)
📄 zfs_sa.h(4.38 KB)
📄 zfs_stat.h(1.45 KB)
📄 zfs_sysfs.h(1.49 KB)
📄 zfs_vfsops.h(1.05 KB)
📄 zfs_vnops.h(2 KB)
📄 zfs_znode.h(10.93 KB)
📄 zil.h(18.27 KB)
📄 zil_impl.h(9.12 KB)
📄 zio.h(21.68 KB)
📄 zio_checksum.h(4.55 KB)
📄 zio_compress.h(5.91 KB)
📄 zio_crypt.h(5.21 KB)
📄 zio_impl.h(8.33 KB)
📄 zio_priority.h(1.2 KB)
📄 zrlock.h(1.7 KB)
📁 zstd
📄 zthr.h(1.23 KB)
📄 zvol.h(2.27 KB)
📄 zvol_impl.h(3.7 KB)

Editing: zio_compress.h

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Copyright (c) 2019, Allan Jude
 * Copyright (c) 2019, Klara Inc.
 * Use is subject to license terms.
 * Copyright (c) 2015, 2016 by Delphix. All rights reserved.
 */

#ifndef _SYS_ZIO_COMPRESS_H
#define	_SYS_ZIO_COMPRESS_H

#include <sys/abd.h>

#ifdef	__cplusplus
extern "C" {
#endif

enum zio_compress {
	ZIO_COMPRESS_INHERIT = 0,
	ZIO_COMPRESS_ON,
	ZIO_COMPRESS_OFF,
	ZIO_COMPRESS_LZJB,
	ZIO_COMPRESS_EMPTY,
	ZIO_COMPRESS_GZIP_1,
	ZIO_COMPRESS_GZIP_2,
	ZIO_COMPRESS_GZIP_3,
	ZIO_COMPRESS_GZIP_4,
	ZIO_COMPRESS_GZIP_5,
	ZIO_COMPRESS_GZIP_6,
	ZIO_COMPRESS_GZIP_7,
	ZIO_COMPRESS_GZIP_8,
	ZIO_COMPRESS_GZIP_9,
	ZIO_COMPRESS_ZLE,
	ZIO_COMPRESS_LZ4,
	ZIO_COMPRESS_ZSTD,
	ZIO_COMPRESS_FUNCTIONS
};

/* Compression algorithms that have levels */
#define	ZIO_COMPRESS_HASLEVEL(compress)	((compress == ZIO_COMPRESS_ZSTD || \
					(compress >= ZIO_COMPRESS_GZIP_1 && \
					compress <= ZIO_COMPRESS_GZIP_9)))

#define	ZIO_COMPLEVEL_INHERIT	0
#define	ZIO_COMPLEVEL_DEFAULT	255

enum zio_zstd_levels {
	ZIO_ZSTD_LEVEL_INHERIT = 0,
	ZIO_ZSTD_LEVEL_1,
#define	ZIO_ZSTD_LEVEL_MIN	ZIO_ZSTD_LEVEL_1
	ZIO_ZSTD_LEVEL_2,
	ZIO_ZSTD_LEVEL_3,
#define	ZIO_ZSTD_LEVEL_DEFAULT	ZIO_ZSTD_LEVEL_3
	ZIO_ZSTD_LEVEL_4,
	ZIO_ZSTD_LEVEL_5,
	ZIO_ZSTD_LEVEL_6,
	ZIO_ZSTD_LEVEL_7,
	ZIO_ZSTD_LEVEL_8,
	ZIO_ZSTD_LEVEL_9,
	ZIO_ZSTD_LEVEL_10,
	ZIO_ZSTD_LEVEL_11,
	ZIO_ZSTD_LEVEL_12,
	ZIO_ZSTD_LEVEL_13,
	ZIO_ZSTD_LEVEL_14,
	ZIO_ZSTD_LEVEL_15,
	ZIO_ZSTD_LEVEL_16,
	ZIO_ZSTD_LEVEL_17,
	ZIO_ZSTD_LEVEL_18,
	ZIO_ZSTD_LEVEL_19,
#define	ZIO_ZSTD_LEVEL_MAX	ZIO_ZSTD_LEVEL_19
	ZIO_ZSTD_LEVEL_RESERVE = 101, /* Leave room for new positive levels */
	ZIO_ZSTD_LEVEL_FAST, /* Fast levels are negative */
	ZIO_ZSTD_LEVEL_FAST_1,
#define	ZIO_ZSTD_LEVEL_FAST_DEFAULT	ZIO_ZSTD_LEVEL_FAST_1
	ZIO_ZSTD_LEVEL_FAST_2,
	ZIO_ZSTD_LEVEL_FAST_3,
	ZIO_ZSTD_LEVEL_FAST_4,
	ZIO_ZSTD_LEVEL_FAST_5,
	ZIO_ZSTD_LEVEL_FAST_6,
	ZIO_ZSTD_LEVEL_FAST_7,
	ZIO_ZSTD_LEVEL_FAST_8,
	ZIO_ZSTD_LEVEL_FAST_9,
	ZIO_ZSTD_LEVEL_FAST_10,
	ZIO_ZSTD_LEVEL_FAST_20,
	ZIO_ZSTD_LEVEL_FAST_30,
	ZIO_ZSTD_LEVEL_FAST_40,
	ZIO_ZSTD_LEVEL_FAST_50,
	ZIO_ZSTD_LEVEL_FAST_60,
	ZIO_ZSTD_LEVEL_FAST_70,
	ZIO_ZSTD_LEVEL_FAST_80,
	ZIO_ZSTD_LEVEL_FAST_90,
	ZIO_ZSTD_LEVEL_FAST_100,
	ZIO_ZSTD_LEVEL_FAST_500,
	ZIO_ZSTD_LEVEL_FAST_1000,
#define	ZIO_ZSTD_LEVEL_FAST_MAX	ZIO_ZSTD_LEVEL_FAST_1000
	ZIO_ZSTD_LEVEL_AUTO = 251, /* Reserved for future use */
	ZIO_ZSTD_LEVEL_LEVELS
};

/* Forward Declaration to avoid visibility problems */
struct zio_prop;

/* Common signature for all zio compress functions. */
typedef size_t zio_compress_func_t(void *src, void *dst,
    size_t s_len, size_t d_len, int);
/* Common signature for all zio decompress functions. */
typedef int zio_decompress_func_t(void *src, void *dst,
    size_t s_len, size_t d_len, int);
/* Common signature for all zio decompress and get level functions. */
typedef int zio_decompresslevel_func_t(void *src, void *dst,
    size_t s_len, size_t d_len, uint8_t *level);
/* Common signature for all zio get-compression-level functions. */
typedef int zio_getlevel_func_t(void *src, size_t s_len, uint8_t *level);

/*
 * Common signature for all zio decompress functions using an ABD as input.
 * This is helpful if you have both compressed ARC and scatter ABDs enabled,
 * but is not a requirement for all compression algorithms.
 */
typedef int zio_decompress_abd_func_t(abd_t *src, void *dst,
    size_t s_len, size_t d_len, int);
/*
 * Information about each compression function.
 */
typedef const struct zio_compress_info {
	char				*ci_name;
	int				ci_level;
	zio_compress_func_t		*ci_compress;
	zio_decompress_func_t		*ci_decompress;
	zio_decompresslevel_func_t	*ci_decompress_level;
} zio_compress_info_t;

extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS];

/*
 * lz4 compression init & free
 */
extern void lz4_init(void);
extern void lz4_fini(void);

/*
 * Compression routines.
 */
extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern size_t zle_compress(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern int zle_decompress(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern size_t lz4_compress_zfs(void *src, void *dst, size_t s_len, size_t d_len,
    int level);
extern int lz4_decompress_zfs(void *src, void *dst, size_t s_len, size_t d_len,
    int level);

/*
 * Compress and decompress data if necessary.
 */
extern size_t zio_compress_data(enum zio_compress c, abd_t *src, void *dst,
    size_t s_len, uint8_t level);
extern int zio_decompress_data(enum zio_compress c, abd_t *src, void *dst,
    size_t s_len, size_t d_len, uint8_t *level);
extern int zio_decompress_data_buf(enum zio_compress c, void *src, void *dst,
    size_t s_len, size_t d_len, uint8_t *level);
extern int zio_compress_to_feature(enum zio_compress comp);

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_ZIO_COMPRESS_H */

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