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]
23 * Copyright (c) 2011, 2018 by Delphix. All rights reserved.
24 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
25 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
26 * Copyright (c) 2017, Intel Corporation.
29 #ifndef _ZFEATURE_COMMON_H
30 #define _ZFEATURE_COMMON_H
32 #include <sys/fs/zfs.h>
33 #include <sys/inttypes.h>
34 #include <sys/types.h>
42 typedef enum spa_feature {
43 SPA_FEATURE_NONE = -1,
44 SPA_FEATURE_ASYNC_DESTROY,
45 SPA_FEATURE_EMPTY_BPOBJ,
46 SPA_FEATURE_LZ4_COMPRESS,
47 SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
48 SPA_FEATURE_SPACEMAP_HISTOGRAM,
49 SPA_FEATURE_ENABLED_TXG,
50 SPA_FEATURE_HOLE_BIRTH,
51 SPA_FEATURE_EXTENSIBLE_DATASET,
52 SPA_FEATURE_EMBEDDED_DATA,
53 SPA_FEATURE_BOOKMARKS,
54 SPA_FEATURE_FS_SS_LIMIT,
55 SPA_FEATURE_LARGE_BLOCKS,
56 SPA_FEATURE_LARGE_DNODE,
59 #if !defined(__FreeBSD__)
62 SPA_FEATURE_USEROBJ_ACCOUNTING,
63 SPA_FEATURE_ENCRYPTION,
64 SPA_FEATURE_PROJECT_QUOTA,
65 SPA_FEATURE_DEVICE_REMOVAL,
66 SPA_FEATURE_OBSOLETE_COUNTS,
67 SPA_FEATURE_POOL_CHECKPOINT,
68 SPA_FEATURE_SPACEMAP_V2,
69 SPA_FEATURE_ALLOCATION_CLASSES,
70 SPA_FEATURE_RESILVER_DEFER,
71 SPA_FEATURE_BOOKMARK_V2,
72 SPA_FEATURE_REDACTION_BOOKMARKS,
73 SPA_FEATURE_REDACTED_DATASETS,
74 SPA_FEATURE_BOOKMARK_WRITTEN,
75 SPA_FEATURE_LOG_SPACEMAP,
77 SPA_FEATURE_DEVICE_REBUILD,
78 SPA_FEATURE_ZSTD_COMPRESS,
82 #define SPA_FEATURE_DISABLED (-1ULL)
84 typedef enum zfeature_flags {
85 /* Can open pool readonly even if this feature is not supported. */
86 ZFEATURE_FLAG_READONLY_COMPAT = (1 << 0),
88 * Is this feature necessary to load the pool? i.e. do we need this
89 * feature to read the full feature list out of the MOS?
91 ZFEATURE_FLAG_MOS = (1 << 1),
92 /* Activate this feature at the same time it is enabled. */
93 ZFEATURE_FLAG_ACTIVATE_ON_ENABLE = (1 << 2),
94 /* Each dataset has a field set if it has ever used this feature. */
95 ZFEATURE_FLAG_PER_DATASET = (1 << 3)
98 typedef enum zfeature_type {
99 ZFEATURE_TYPE_BOOLEAN,
100 ZFEATURE_TYPE_UINT64_ARRAY,
104 typedef struct zfeature_info {
105 spa_feature_t fi_feature;
106 const char *fi_uname; /* User-facing feature name */
107 const char *fi_guid; /* On-disk feature identifier */
108 const char *fi_desc; /* Feature description */
109 zfeature_flags_t fi_flags;
110 boolean_t fi_zfs_mod_supported; /* supported by running zfs module */
111 zfeature_type_t fi_type; /* Only relevant for PER_DATASET features */
112 /* array of dependencies, terminated by SPA_FEATURE_NONE */
113 const spa_feature_t *fi_depends;
116 typedef int (zfeature_func_t)(zfeature_info_t *, void *);
118 #define ZFS_FEATURE_DEBUG
120 extern zfeature_info_t spa_feature_table[SPA_FEATURES];
122 extern boolean_t zfeature_is_valid_guid(const char *);
124 extern boolean_t zfeature_is_supported(const char *);
125 extern int zfeature_lookup_guid(const char *, spa_feature_t *);
126 extern int zfeature_lookup_name(const char *, spa_feature_t *);
127 extern boolean_t zfeature_depends_on(spa_feature_t, spa_feature_t);
129 extern void zpool_feature_init(void);
135 #endif /* _ZFEATURE_COMMON_H */