21
22 /*
23 * Copyright (c) 2013 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 */
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 struct zfeature_info {
42 const char *fi_uname; /* User-facing feature name */
43 const char *fi_guid; /* On-disk feature identifier */
44 const char *fi_desc; /* Feature description */
45 boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */
46 boolean_t fi_mos; /* Is the feature necessary to read the MOS? */
47 struct zfeature_info **fi_depends; /* array; null terminated */
48 } zfeature_info_t;
49
50 typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg);
51
52 #define ZFS_FEATURE_DEBUG
53
54 enum spa_feature {
55 SPA_FEATURE_ASYNC_DESTROY,
56 SPA_FEATURE_EMPTY_BPOBJ,
57 SPA_FEATURE_LZ4_COMPRESS,
58 SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
59 SPA_FEATURE_SPACEMAP_HISTOGRAM,
60 SPA_FEATURES
61 } spa_feature_t;
62
63 extern zfeature_info_t spa_feature_table[SPA_FEATURES];
64
65 extern boolean_t zfeature_is_valid_guid(const char *);
66
67 extern boolean_t zfeature_is_supported(const char *);
68 extern int zfeature_lookup_guid(const char *, zfeature_info_t **res);
69 extern int zfeature_lookup_name(const char *, zfeature_info_t **res);
70
71 extern void zpool_feature_init(void);
72
73 #ifdef __cplusplus
74 }
75 #endif
76
77 #endif /* _ZFEATURE_COMMON_H */
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21
22 /*
23 * Copyright (c) 2013 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 */
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,
46 SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
47 SPA_FEATURE_SPACEMAP_HISTOGRAM,
48 SPA_FEATURE_EXTENSIBLE_DATASET,
49 SPA_FEATURES
50 } spa_feature_t;
51
52 typedef struct zfeature_info {
53 spa_feature_t fi_feature;
54 const char *fi_uname; /* User-facing feature name */
55 const char *fi_guid; /* On-disk feature identifier */
56 const char *fi_desc; /* Feature description */
57 boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */
58 boolean_t fi_mos; /* Is the feature necessary to read the MOS? */
59 /* array of dependencies, terminated by SPA_FEATURE_NONE */
60 const spa_feature_t *fi_depends;
61 } zfeature_info_t;
62
63 typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg);
64
65 #define ZFS_FEATURE_DEBUG
66
67 extern zfeature_info_t spa_feature_table[SPA_FEATURES];
68
69 extern boolean_t zfeature_is_valid_guid(const char *);
70
71 extern boolean_t zfeature_is_supported(const char *);
72 extern int zfeature_lookup_name(const char *name, spa_feature_t *res);
73
74 extern void zpool_feature_init(void);
75
76 #ifdef __cplusplus
77 }
78 #endif
79
80 #endif /* _ZFEATURE_COMMON_H */
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