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 https://opensource.org/licenses/CDDL-1.0. 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 /* 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. 27 */ 28 29 #ifndef _ZFEATURE_COMMON_H 30 #define _ZFEATURE_COMMON_H extern __attribute__((visibility("default"))) 31 32 #include <sys/fs/zfs.h> 33 #include <sys/inttypes.h> 34 #include <sys/types.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 struct zfeature_info; 41 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, 57 SPA_FEATURE_SHA512, 58 SPA_FEATURE_SKEIN, 59 SPA_FEATURE_EDONR, 60 SPA_FEATURE_USEROBJ_ACCOUNTING, 61 SPA_FEATURE_ENCRYPTION, 62 SPA_FEATURE_PROJECT_QUOTA, 63 SPA_FEATURE_DEVICE_REMOVAL, 64 SPA_FEATURE_OBSOLETE_COUNTS, 65 SPA_FEATURE_POOL_CHECKPOINT, 66 SPA_FEATURE_SPACEMAP_V2, 67 SPA_FEATURE_ALLOCATION_CLASSES, 68 SPA_FEATURE_RESILVER_DEFER, 69 SPA_FEATURE_BOOKMARK_V2, 70 SPA_FEATURE_REDACTION_BOOKMARKS, 71 SPA_FEATURE_REDACTED_DATASETS, 72 SPA_FEATURE_BOOKMARK_WRITTEN, 73 SPA_FEATURE_LOG_SPACEMAP, 74 SPA_FEATURE_LIVELIST, 75 SPA_FEATURE_DEVICE_REBUILD, 76 SPA_FEATURE_ZSTD_COMPRESS, 77 SPA_FEATURE_DRAID, 78 SPA_FEATURE_ZILSAXATTR, 79 SPA_FEATURE_HEAD_ERRLOG, 80 SPA_FEATURE_BLAKE3, 81 SPA_FEATURES 82 } spa_feature_t; 83 84 #define SPA_FEATURE_DISABLED (-1ULL) 85 86 typedef enum zfeature_flags { 87 /* Can open pool readonly even if this feature is not supported. */ 88 ZFEATURE_FLAG_READONLY_COMPAT = (1 << 0), 89 /* 90 * Is this feature necessary to load the pool? i.e. do we need this 91 * feature to read the full feature list out of the MOS? 92 */ 93 ZFEATURE_FLAG_MOS = (1 << 1), 94 /* Activate this feature at the same time it is enabled. */ 95 ZFEATURE_FLAG_ACTIVATE_ON_ENABLE = (1 << 2), 96 /* Each dataset has a field set if it has ever used this feature. */ 97 ZFEATURE_FLAG_PER_DATASET = (1 << 3) 98 } zfeature_flags_t; 99 100 typedef enum zfeature_type { 101 ZFEATURE_TYPE_BOOLEAN, 102 ZFEATURE_TYPE_UINT64_ARRAY, 103 ZFEATURE_NUM_TYPES 104 } zfeature_type_t; 105 106 typedef struct zfeature_info { 107 spa_feature_t fi_feature; 108 const char *fi_uname; /* User-facing feature name */ 109 const char *fi_guid; /* On-disk feature identifier */ 110 const char *fi_desc; /* Feature description */ 111 zfeature_flags_t fi_flags; 112 boolean_t fi_zfs_mod_supported; /* supported by running zfs module */ 113 zfeature_type_t fi_type; /* Only relevant for PER_DATASET features */ 114 /* array of dependencies, terminated by SPA_FEATURE_NONE */ 115 const spa_feature_t *fi_depends; 116 } zfeature_info_t; 117 118 typedef int (zfeature_func_t)(zfeature_info_t *, void *); 119 120 #define ZFS_FEATURE_DEBUG 121 122 _ZFEATURE_COMMON_H zfeature_info_t spa_feature_table[SPA_FEATURES]; 123 _ZFEATURE_COMMON_H boolean_t zfeature_checks_disable; 124 125 _ZFEATURE_COMMON_H boolean_t zfeature_is_valid_guid(const char *); 126 127 _ZFEATURE_COMMON_H boolean_t zfeature_is_supported(const char *); 128 _ZFEATURE_COMMON_H int zfeature_lookup_guid(const char *, spa_feature_t *); 129 _ZFEATURE_COMMON_H int zfeature_lookup_name(const char *, spa_feature_t *); 130 _ZFEATURE_COMMON_H boolean_t zfeature_depends_on(spa_feature_t, spa_feature_t); 131 132 _ZFEATURE_COMMON_H void zpool_feature_init(void); 133 134 #ifdef __cplusplus 135 } 136 #endif 137 138 #endif /* _ZFEATURE_COMMON_H */ 139