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34dc7c2f BB |
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 | |
1d3ba0bf | 9 | * or https://opensource.org/licenses/CDDL-1.0. |
34dc7c2f BB |
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 | */ | |
9ae529ec | 21 | |
34dc7c2f | 22 | /* |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
108a454a | 24 | * Copyright (c) 2011, 2020 by Delphix. All rights reserved. |
cc99f275 | 25 | * Copyright (c) 2017, Intel Corporation. |
3c819a2c | 26 | * Copyright (c) 2019, Datto Inc. All rights reserved. |
34dc7c2f BB |
27 | */ |
28 | ||
29 | #ifndef _SYS_VDEV_H | |
30 | #define _SYS_VDEV_H | |
31 | ||
34dc7c2f BB |
32 | #include <sys/spa.h> |
33 | #include <sys/zio.h> | |
34 | #include <sys/dmu.h> | |
35 | #include <sys/space_map.h> | |
aa755b35 | 36 | #include <sys/metaslab.h> |
34dc7c2f BB |
37 | #include <sys/fs/zfs.h> |
38 | ||
39 | #ifdef __cplusplus | |
40 | extern "C" { | |
41 | #endif | |
42 | ||
fb5f0bc8 BB |
43 | typedef enum vdev_dtl_type { |
44 | DTL_MISSING, /* 0% replication: no copies of the data */ | |
45 | DTL_PARTIAL, /* less than 100% replication: some copies missing */ | |
46 | DTL_SCRUB, /* unable to fully repair during scrub/resilver */ | |
47 | DTL_OUTAGE, /* temporarily missing (used to attempt detach) */ | |
48 | DTL_TYPES | |
49 | } vdev_dtl_type_t; | |
50 | ||
c409e464 | 51 | extern int zfs_nocacheflush; |
34dc7c2f | 52 | |
b2255edc BB |
53 | typedef boolean_t vdev_open_children_func_t(vdev_t *vd); |
54 | ||
5dbf6c5a AZ |
55 | extern void vdev_dbgmsg(vdev_t *vd, const char *fmt, ...) |
56 | __attribute__((format(printf, 2, 3))); | |
6cb8e530 | 57 | extern void vdev_dbgmsg_print_tree(vdev_t *, int); |
34dc7c2f | 58 | extern int vdev_open(vdev_t *); |
428870ff | 59 | extern void vdev_open_children(vdev_t *); |
b2255edc | 60 | extern void vdev_open_children_subset(vdev_t *, vdev_open_children_func_t *); |
6cb8e530 PZ |
61 | extern int vdev_validate(vdev_t *); |
62 | extern int vdev_copy_path_strict(vdev_t *, vdev_t *); | |
63 | extern void vdev_copy_path_relaxed(vdev_t *, vdev_t *); | |
34dc7c2f BB |
64 | extern void vdev_close(vdev_t *); |
65 | extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace); | |
34dc7c2f BB |
66 | extern void vdev_reopen(vdev_t *); |
67 | extern int vdev_validate_aux(vdev_t *vd); | |
b128c09f | 68 | extern zio_t *vdev_probe(vdev_t *vd, zio_t *pio); |
a1d477c2 | 69 | extern boolean_t vdev_is_concrete(vdev_t *vd); |
b128c09f | 70 | extern boolean_t vdev_is_bootable(vdev_t *vd); |
34dc7c2f BB |
71 | extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev); |
72 | extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid); | |
9c43027b | 73 | extern int vdev_count_leaves(spa_t *spa); |
fb5f0bc8 BB |
74 | extern void vdev_dtl_dirty(vdev_t *vd, vdev_dtl_type_t d, |
75 | uint64_t txg, uint64_t size); | |
76 | extern boolean_t vdev_dtl_contains(vdev_t *vd, vdev_dtl_type_t d, | |
77 | uint64_t txg, uint64_t size); | |
78 | extern boolean_t vdev_dtl_empty(vdev_t *vd, vdev_dtl_type_t d); | |
b2255edc BB |
79 | extern boolean_t vdev_default_need_resilver(vdev_t *vd, const dva_t *dva, |
80 | size_t psize, uint64_t phys_birth); | |
81 | extern boolean_t vdev_dtl_need_resilver(vdev_t *vd, const dva_t *dva, | |
82 | size_t psize, uint64_t phys_birth); | |
34dc7c2f | 83 | extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, |
9a49d3f3 | 84 | boolean_t scrub_done, boolean_t rebuild_done); |
fb5f0bc8 | 85 | extern boolean_t vdev_dtl_required(vdev_t *vd); |
b128c09f BB |
86 | extern boolean_t vdev_resilver_needed(vdev_t *vd, |
87 | uint64_t *minp, uint64_t *maxp); | |
e0ab3ab5 JS |
88 | extern void vdev_destroy_unlink_zap(vdev_t *vd, uint64_t zapobj, |
89 | dmu_tx_t *tx); | |
90 | extern uint64_t vdev_create_link_zap(vdev_t *vd, dmu_tx_t *tx); | |
91 | extern void vdev_construct_zaps(vdev_t *vd, dmu_tx_t *tx); | |
a1d477c2 MA |
92 | extern void vdev_destroy_spacemaps(vdev_t *vd, dmu_tx_t *tx); |
93 | extern void vdev_indirect_mark_obsolete(vdev_t *vd, uint64_t offset, | |
d2734cce | 94 | uint64_t size); |
a1d477c2 MA |
95 | extern void spa_vdev_indirect_mark_obsolete(spa_t *spa, uint64_t vdev, |
96 | uint64_t offset, uint64_t size, dmu_tx_t *tx); | |
e60e158e | 97 | extern boolean_t vdev_replace_in_progress(vdev_t *vdev); |
34dc7c2f | 98 | |
428870ff BB |
99 | extern void vdev_hold(vdev_t *); |
100 | extern void vdev_rele(vdev_t *); | |
101 | ||
34dc7c2f BB |
102 | extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg); |
103 | extern void vdev_metaslab_fini(vdev_t *vd); | |
9babb374 BB |
104 | extern void vdev_metaslab_set_size(vdev_t *); |
105 | extern void vdev_expand(vdev_t *vd, uint64_t txg); | |
428870ff | 106 | extern void vdev_split(vdev_t *vd); |
dd66857d | 107 | extern void vdev_deadman(vdev_t *vd, const char *tag); |
b2255edc BB |
108 | |
109 | typedef void vdev_xlate_func_t(void *arg, range_seg64_t *physical_rs); | |
110 | ||
111 | extern boolean_t vdev_xlate_is_empty(range_seg64_t *rs); | |
ca577779 | 112 | extern void vdev_xlate(vdev_t *vd, const range_seg64_t *logical_rs, |
b2255edc BB |
113 | range_seg64_t *physical_rs, range_seg64_t *remain_rs); |
114 | extern void vdev_xlate_walk(vdev_t *vd, const range_seg64_t *logical_rs, | |
115 | vdev_xlate_func_t *func, void *arg); | |
428870ff | 116 | |
193a37cb | 117 | extern void vdev_get_stats_ex(vdev_t *vd, vdev_stat_t *vs, vdev_stat_ex_t *vsx); |
aa755b35 MA |
118 | |
119 | extern metaslab_group_t *vdev_get_mg(vdev_t *vd, metaslab_class_t *mc); | |
120 | ||
34dc7c2f BB |
121 | extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs); |
122 | extern void vdev_clear_stats(vdev_t *vd); | |
b128c09f | 123 | extern void vdev_stat_update(zio_t *zio, uint64_t psize); |
428870ff | 124 | extern void vdev_scan_stat_init(vdev_t *vd); |
34dc7c2f BB |
125 | extern void vdev_propagate_state(vdev_t *vd); |
126 | extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, | |
127 | vdev_aux_t aux); | |
6cb8e530 | 128 | extern boolean_t vdev_children_are_offline(vdev_t *vd); |
34dc7c2f | 129 | |
428870ff BB |
130 | extern void vdev_space_update(vdev_t *vd, |
131 | int64_t alloc_delta, int64_t defer_delta, int64_t space_delta); | |
34dc7c2f | 132 | |
cc99f275 DB |
133 | extern int64_t vdev_deflated_space(vdev_t *vd, int64_t space); |
134 | ||
5caeef02 DB |
135 | extern uint64_t vdev_psize_to_asize_txg(vdev_t *vd, uint64_t psize, |
136 | uint64_t txg); | |
34dc7c2f BB |
137 | extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize); |
138 | ||
2b56a634 | 139 | /* |
5caeef02 DB |
140 | * Return the amount of space allocated for a gang block header. Note that |
141 | * since the physical birth txg is not provided, this must be constant for | |
142 | * a given vdev. (e.g. raidz expansion can't change this) | |
2b56a634 MA |
143 | */ |
144 | static inline uint64_t | |
145 | vdev_gang_header_asize(vdev_t *vd) | |
146 | { | |
5caeef02 | 147 | return (vdev_psize_to_asize_txg(vd, SPA_GANGBLOCKSIZE, 0)); |
2b56a634 MA |
148 | } |
149 | ||
428870ff BB |
150 | extern int vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux); |
151 | extern int vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux); | |
34dc7c2f BB |
152 | extern int vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, |
153 | vdev_state_t *); | |
154 | extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags); | |
55c12724 | 155 | extern int vdev_remove_wanted(spa_t *spa, uint64_t guid); |
b128c09f | 156 | extern void vdev_clear(spa_t *spa, vdev_t *vd); |
34dc7c2f | 157 | |
b128c09f BB |
158 | extern boolean_t vdev_is_dead(vdev_t *vd); |
159 | extern boolean_t vdev_readable(vdev_t *vd); | |
160 | extern boolean_t vdev_writeable(vdev_t *vd); | |
161 | extern boolean_t vdev_allocatable(vdev_t *vd); | |
162 | extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio); | |
d2734cce | 163 | extern boolean_t vdev_is_spacemap_addressable(vdev_t *vd); |
34dc7c2f | 164 | |
34dc7c2f BB |
165 | extern void vdev_queue_init(vdev_t *vd); |
166 | extern void vdev_queue_fini(vdev_t *vd); | |
167 | extern zio_t *vdev_queue_io(zio_t *zio); | |
168 | extern void vdev_queue_io_done(zio_t *zio); | |
a8b2e306 | 169 | extern void vdev_queue_change_io_priority(zio_t *zio, zio_priority_t priority); |
34dc7c2f | 170 | |
8469b5aa | 171 | extern uint32_t vdev_queue_length(vdev_t *vd); |
d6c6590c | 172 | extern uint64_t vdev_queue_last_offset(vdev_t *vd); |
8469b5aa | 173 | extern uint64_t vdev_queue_class_length(vdev_t *vq, zio_priority_t p); |
9f500936 | 174 | |
34dc7c2f BB |
175 | extern void vdev_config_dirty(vdev_t *vd); |
176 | extern void vdev_config_clean(vdev_t *vd); | |
b6fcb792 | 177 | extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg); |
34dc7c2f | 178 | |
b128c09f BB |
179 | extern void vdev_state_dirty(vdev_t *vd); |
180 | extern void vdev_state_clean(vdev_t *vd); | |
181 | ||
3c819a2c JP |
182 | extern void vdev_defer_resilver(vdev_t *vd); |
183 | extern boolean_t vdev_clear_resilver_deferred(vdev_t *vd, dmu_tx_t *tx); | |
80a91e74 | 184 | |
428870ff BB |
185 | typedef enum vdev_config_flag { |
186 | VDEV_CONFIG_SPARE = 1 << 0, | |
187 | VDEV_CONFIG_L2CACHE = 1 << 1, | |
460d887c GW |
188 | VDEV_CONFIG_MOS = 1 << 2, |
189 | VDEV_CONFIG_MISSING = 1 << 3 | |
428870ff BB |
190 | } vdev_config_flag_t; |
191 | ||
55c12724 AH |
192 | extern void vdev_post_kobj_evt(vdev_t *vd); |
193 | extern void vdev_clear_kobj_evt(vdev_t *vd); | |
428870ff | 194 | extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config); |
34dc7c2f | 195 | extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd, |
428870ff | 196 | boolean_t getstats, vdev_config_flag_t flags); |
34dc7c2f BB |
197 | |
198 | /* | |
199 | * Label routines | |
200 | */ | |
201 | struct uberblock; | |
202 | extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset); | |
b128c09f | 203 | extern int vdev_label_number(uint64_t psise, uint64_t offset); |
3bc7e0fb | 204 | extern nvlist_t *vdev_label_read_config(vdev_t *vd, uint64_t txg); |
9ae529ec | 205 | extern void vdev_uberblock_load(vdev_t *, struct uberblock *, nvlist_t **); |
193a37cb | 206 | extern void vdev_config_generate_stats(vdev_t *vd, nvlist_t *nv); |
379ca9cf | 207 | extern void vdev_label_write(zio_t *zio, vdev_t *vd, int l, abd_t *buf, uint64_t |
60265072 | 208 | offset, uint64_t size, zio_done_func_t *done, void *priv, int flags); |
108a454a | 209 | extern int vdev_label_read_bootenv(vdev_t *, nvlist_t *); |
1db9e6e4 | 210 | extern int vdev_label_write_bootenv(vdev_t *, nvlist_t *); |
5caeef02 DB |
211 | extern int vdev_uberblock_sync_list(vdev_t **, int, struct uberblock *, int); |
212 | extern int vdev_check_boot_reserve(spa_t *, vdev_t *); | |
34dc7c2f BB |
213 | |
214 | typedef enum { | |
215 | VDEV_LABEL_CREATE, /* create/add a new device */ | |
216 | VDEV_LABEL_REPLACE, /* replace an existing device */ | |
217 | VDEV_LABEL_SPARE, /* add a new hot spare */ | |
218 | VDEV_LABEL_REMOVE, /* remove an existing device */ | |
428870ff BB |
219 | VDEV_LABEL_L2CACHE, /* add an L2ARC cache device */ |
220 | VDEV_LABEL_SPLIT /* generating new label for split-off dev */ | |
34dc7c2f BB |
221 | } vdev_labeltype_t; |
222 | ||
223 | extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason); | |
224 | ||
2a673e76 AJ |
225 | extern int vdev_prop_set(vdev_t *vd, nvlist_t *innvl, nvlist_t *outnvl); |
226 | extern int vdev_prop_get(vdev_t *vd, nvlist_t *nvprops, nvlist_t *outnvl); | |
227 | ||
34dc7c2f BB |
228 | #ifdef __cplusplus |
229 | } | |
230 | #endif | |
231 | ||
232 | #endif /* _SYS_VDEV_H */ |