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70e083d2 TG |
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 | ||
22 | /* | |
86e3c28a | 23 | * Copyright (c) 2011, 2015 by Delphix. All rights reserved. |
70e083d2 | 24 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
86e3c28a | 25 | * Copyright (c) 2013, Joyent, Inc. All rights reserved. |
70e083d2 TG |
26 | */ |
27 | ||
28 | #ifndef _ZFEATURE_COMMON_H | |
29 | #define _ZFEATURE_COMMON_H | |
30 | ||
31 | #include <sys/fs/zfs.h> | |
32 | #include <sys/inttypes.h> | |
33 | #include <sys/types.h> | |
34 | ||
35 | #ifdef __cplusplus | |
36 | extern "C" { | |
37 | #endif | |
38 | ||
39 | struct zfeature_info; | |
40 | ||
41 | typedef enum spa_feature { | |
42 | SPA_FEATURE_NONE = -1, | |
43 | SPA_FEATURE_ASYNC_DESTROY, | |
44 | SPA_FEATURE_EMPTY_BPOBJ, | |
45 | SPA_FEATURE_LZ4_COMPRESS, | |
86e3c28a | 46 | SPA_FEATURE_MULTI_VDEV_CRASH_DUMP, |
70e083d2 TG |
47 | SPA_FEATURE_SPACEMAP_HISTOGRAM, |
48 | SPA_FEATURE_ENABLED_TXG, | |
49 | SPA_FEATURE_HOLE_BIRTH, | |
50 | SPA_FEATURE_EXTENSIBLE_DATASET, | |
51 | SPA_FEATURE_EMBEDDED_DATA, | |
52 | SPA_FEATURE_BOOKMARKS, | |
53 | SPA_FEATURE_FS_SS_LIMIT, | |
54 | SPA_FEATURE_LARGE_BLOCKS, | |
86e3c28a CIK |
55 | SPA_FEATURE_LARGE_DNODE, |
56 | SPA_FEATURE_SHA512, | |
57 | SPA_FEATURE_SKEIN, | |
58 | SPA_FEATURE_EDONR, | |
59 | SPA_FEATURE_USEROBJ_ACCOUNTING, | |
70e083d2 TG |
60 | SPA_FEATURES |
61 | } spa_feature_t; | |
62 | ||
63 | #define SPA_FEATURE_DISABLED (-1ULL) | |
64 | ||
86e3c28a CIK |
65 | typedef enum zfeature_flags { |
66 | /* Can open pool readonly even if this feature is not supported. */ | |
67 | ZFEATURE_FLAG_READONLY_COMPAT = (1 << 0), | |
68 | /* Is this feature necessary to read the MOS? */ | |
69 | ZFEATURE_FLAG_MOS = (1 << 1), | |
70 | /* Activate this feature at the same time it is enabled. */ | |
71 | ZFEATURE_FLAG_ACTIVATE_ON_ENABLE = (1 << 2), | |
72 | /* Each dataset has a field set if it has ever used this feature. */ | |
73 | ZFEATURE_FLAG_PER_DATASET = (1 << 3) | |
74 | } zfeature_flags_t; | |
75 | ||
70e083d2 TG |
76 | typedef struct zfeature_info { |
77 | spa_feature_t fi_feature; | |
78 | const char *fi_uname; /* User-facing feature name */ | |
79 | const char *fi_guid; /* On-disk feature identifier */ | |
80 | const char *fi_desc; /* Feature description */ | |
86e3c28a | 81 | zfeature_flags_t fi_flags; |
70e083d2 TG |
82 | /* array of dependencies, terminated by SPA_FEATURE_NONE */ |
83 | const spa_feature_t *fi_depends; | |
84 | } zfeature_info_t; | |
85 | ||
86 | typedef int (zfeature_func_t)(zfeature_info_t *, void *); | |
87 | ||
88 | #define ZFS_FEATURE_DEBUG | |
89 | ||
90 | extern zfeature_info_t spa_feature_table[SPA_FEATURES]; | |
91 | ||
92 | extern boolean_t zfeature_is_valid_guid(const char *); | |
93 | ||
94 | extern boolean_t zfeature_is_supported(const char *); | |
95 | extern int zfeature_lookup_name(const char *, spa_feature_t *); | |
96 | extern boolean_t zfeature_depends_on(spa_feature_t, spa_feature_t); | |
97 | ||
98 | extern void zpool_feature_init(void); | |
99 | ||
100 | #ifdef __cplusplus | |
101 | } | |
102 | #endif | |
103 | ||
104 | #endif /* _ZFEATURE_COMMON_H */ |