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.
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.
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]
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
29 #pragma ident "%Z%%M% %I% %E% SMI"
34 #include <sys/space_map.h>
35 #include <sys/fs/zfs.h>
41 extern boolean_t zfs_nocacheflush;
44 * Fault injection modes.
46 #define VDEV_FAULT_NONE 0
47 #define VDEV_FAULT_RANDOM 1
48 #define VDEV_FAULT_COUNT 2
50 extern int vdev_open(vdev_t *);
51 extern int vdev_validate(vdev_t *);
52 extern void vdev_close(vdev_t *);
53 extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace);
54 extern void vdev_init(vdev_t *, uint64_t txg);
55 extern void vdev_reopen(vdev_t *);
56 extern int vdev_validate_spare(vdev_t *);
58 extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev);
59 extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid);
60 extern void vdev_dtl_dirty(space_map_t *sm, uint64_t txg, uint64_t size);
61 extern int vdev_dtl_contains(space_map_t *sm, uint64_t txg, uint64_t size);
62 extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg,
65 extern const char *vdev_description(vdev_t *vd);
67 extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg);
68 extern void vdev_metaslab_fini(vdev_t *vd);
70 extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs);
71 extern void vdev_stat_update(zio_t *zio);
72 extern void vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type,
74 extern int vdev_getspec(spa_t *spa, uint64_t vdev, char **vdev_spec);
75 extern void vdev_propagate_state(vdev_t *vd);
76 extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state,
79 extern void vdev_space_update(vdev_t *vd, int64_t space_delta,
82 extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize);
84 extern void vdev_io_start(zio_t *zio);
85 extern void vdev_io_done(zio_t *zio);
87 extern int vdev_online(spa_t *spa, uint64_t guid);
88 extern int vdev_offline(spa_t *spa, uint64_t guid, int istmp);
89 extern void vdev_clear(spa_t *spa, vdev_t *vd);
91 extern int vdev_error_inject(vdev_t *vd, zio_t *zio);
92 extern int vdev_is_dead(vdev_t *vd);
94 extern void vdev_cache_init(vdev_t *vd);
95 extern void vdev_cache_fini(vdev_t *vd);
96 extern int vdev_cache_read(zio_t *zio);
97 extern void vdev_cache_write(zio_t *zio);
99 extern void vdev_queue_init(vdev_t *vd);
100 extern void vdev_queue_fini(vdev_t *vd);
101 extern zio_t *vdev_queue_io(zio_t *zio);
102 extern void vdev_queue_io_done(zio_t *zio);
104 extern void vdev_config_dirty(vdev_t *vd);
105 extern void vdev_config_clean(vdev_t *vd);
106 extern int vdev_config_sync(vdev_t *vd, uint64_t txg);
108 extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
109 boolean_t getstats, boolean_t isspare);
115 extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset);
116 extern nvlist_t *vdev_label_read_config(vdev_t *vd);
117 extern void vdev_uberblock_load(zio_t *zio, vdev_t *vd, struct uberblock *ub);
120 VDEV_LABEL_CREATE, /* create/add a new device */
121 VDEV_LABEL_REPLACE, /* replace an existing device */
122 VDEV_LABEL_SPARE, /* add a new hot spare */
123 VDEV_LABEL_REMOVE /* remove an existing device */
126 extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason);
132 #endif /* _SYS_VDEV_H */