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 /* 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_FEATURES 81 } spa_feature_t; 82 83 #define SPA_FEATURE_DISABLED (-1ULL) 84 85 typedef enum zfeature_flags { 86 /* Can open pool readonly even if this feature is not supported. */ 87 ZFEATURE_FLAG_READONLY_COMPAT = (1 << 0), 88 /* 89 * Is this feature necessary to load the pool? i.e. do we need this 90 * feature to read the full feature list out of the MOS? 91 */ 92 ZFEATURE_FLAG_MOS = (1 << 1), 93 /* Activate this feature at the same time it is enabled. */ 94 ZFEATURE_FLAG_ACTIVATE_ON_ENABLE = (1 << 2), 95 /* Each dataset has a field set if it has ever used this feature. */ 96 ZFEATURE_FLAG_PER_DATASET = (1 << 3) 97 } zfeature_flags_t; 98 99 typedef enum zfeature_type { 100 ZFEATURE_TYPE_BOOLEAN, 101 ZFEATURE_TYPE_UINT64_ARRAY, 102 ZFEATURE_NUM_TYPES 103 } zfeature_type_t; 104 105 typedef struct zfeature_info { 106 spa_feature_t fi_feature; 107 const char *fi_uname; /* User-facing feature name */ 108 const char *fi_guid; /* On-disk feature identifier */ 109 const char *fi_desc; /* Feature description */ 110 zfeature_flags_t fi_flags; 111 boolean_t fi_zfs_mod_supported; /* supported by running zfs module */ 112 zfeature_type_t fi_type; /* Only relevant for PER_DATASET features */ 113 /* array of dependencies, terminated by SPA_FEATURE_NONE */ 114 const spa_feature_t *fi_depends; 115 } zfeature_info_t; 116 117 typedef int (zfeature_func_t)(zfeature_info_t *, void *); 118 119 #define ZFS_FEATURE_DEBUG 120 121 _ZFEATURE_COMMON_H zfeature_info_t spa_feature_table[SPA_FEATURES]; 122 _ZFEATURE_COMMON_H boolean_t zfeature_checks_disable; 123 124 _ZFEATURE_COMMON_H boolean_t zfeature_is_valid_guid(const char *); 125 126 _ZFEATURE_COMMON_H boolean_t zfeature_is_supported(const char *); 127 _ZFEATURE_COMMON_H int zfeature_lookup_guid(const char *, spa_feature_t *); 128 _ZFEATURE_COMMON_H int zfeature_lookup_name(const char *, spa_feature_t *); 129 _ZFEATURE_COMMON_H boolean_t zfeature_depends_on(spa_feature_t, spa_feature_t); 130 131 _ZFEATURE_COMMON_H void zpool_feature_init(void); 132 133 #ifdef __cplusplus 134 } 135 #endif 136 137 #endif /* _ZFEATURE_COMMON_H */ 138