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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2012 by Delphix. All rights reserved.
25 */
26
27 #ifndef _SYS_VDEV_H
28 #define _SYS_VDEV_H
29
30 #include <sys/spa.h>
31 #include <sys/zio.h>
32 #include <sys/dmu.h>
33 #include <sys/space_map.h>
34 #include <sys/fs/zfs.h>
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 typedef enum vdev_dtl_type {
41 DTL_MISSING, /* 0% replication: no copies of the data */
42 DTL_PARTIAL, /* less than 100% replication: some copies missing */
43 DTL_SCRUB, /* unable to fully repair during scrub/resilver */
44 DTL_OUTAGE, /* temporarily missing (used to attempt detach) */
101 vdev_state_t *);
102 extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags);
103 extern void vdev_clear(spa_t *spa, vdev_t *vd);
104
105 extern boolean_t vdev_is_dead(vdev_t *vd);
106 extern boolean_t vdev_readable(vdev_t *vd);
107 extern boolean_t vdev_writeable(vdev_t *vd);
108 extern boolean_t vdev_allocatable(vdev_t *vd);
109 extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio);
110
111 extern void vdev_cache_init(vdev_t *vd);
112 extern void vdev_cache_fini(vdev_t *vd);
113 extern int vdev_cache_read(zio_t *zio);
114 extern void vdev_cache_write(zio_t *zio);
115 extern void vdev_cache_purge(vdev_t *vd);
116
117 extern void vdev_queue_init(vdev_t *vd);
118 extern void vdev_queue_fini(vdev_t *vd);
119 extern zio_t *vdev_queue_io(zio_t *zio);
120 extern void vdev_queue_io_done(zio_t *zio);
121
122 extern void vdev_config_dirty(vdev_t *vd);
123 extern void vdev_config_clean(vdev_t *vd);
124 extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg,
125 boolean_t);
126
127 extern void vdev_state_dirty(vdev_t *vd);
128 extern void vdev_state_clean(vdev_t *vd);
129
130 typedef enum vdev_config_flag {
131 VDEV_CONFIG_SPARE = 1 << 0,
132 VDEV_CONFIG_L2CACHE = 1 << 1,
133 VDEV_CONFIG_REMOVING = 1 << 2
134 } vdev_config_flag_t;
135
136 extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config);
137 extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
138 boolean_t getstats, vdev_config_flag_t flags);
139
140 /*
|
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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2012 by Delphix. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
26 */
27
28 #ifndef _SYS_VDEV_H
29 #define _SYS_VDEV_H
30
31 #include <sys/spa.h>
32 #include <sys/zio.h>
33 #include <sys/dmu.h>
34 #include <sys/space_map.h>
35 #include <sys/fs/zfs.h>
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 typedef enum vdev_dtl_type {
42 DTL_MISSING, /* 0% replication: no copies of the data */
43 DTL_PARTIAL, /* less than 100% replication: some copies missing */
44 DTL_SCRUB, /* unable to fully repair during scrub/resilver */
45 DTL_OUTAGE, /* temporarily missing (used to attempt detach) */
102 vdev_state_t *);
103 extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags);
104 extern void vdev_clear(spa_t *spa, vdev_t *vd);
105
106 extern boolean_t vdev_is_dead(vdev_t *vd);
107 extern boolean_t vdev_readable(vdev_t *vd);
108 extern boolean_t vdev_writeable(vdev_t *vd);
109 extern boolean_t vdev_allocatable(vdev_t *vd);
110 extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio);
111
112 extern void vdev_cache_init(vdev_t *vd);
113 extern void vdev_cache_fini(vdev_t *vd);
114 extern int vdev_cache_read(zio_t *zio);
115 extern void vdev_cache_write(zio_t *zio);
116 extern void vdev_cache_purge(vdev_t *vd);
117
118 extern void vdev_queue_init(vdev_t *vd);
119 extern void vdev_queue_fini(vdev_t *vd);
120 extern zio_t *vdev_queue_io(zio_t *zio);
121 extern void vdev_queue_io_done(zio_t *zio);
122 extern int vdev_queue_length(vdev_t *vd);
123 extern uint64_t vdev_queue_last_queued_offset(vdev_t *vd);
124 extern void vdev_queue_register_last_queued_offset(vdev_t *vd, zio_t *zio);
125
126 extern void vdev_config_dirty(vdev_t *vd);
127 extern void vdev_config_clean(vdev_t *vd);
128 extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg,
129 boolean_t);
130
131 extern void vdev_state_dirty(vdev_t *vd);
132 extern void vdev_state_clean(vdev_t *vd);
133
134 typedef enum vdev_config_flag {
135 VDEV_CONFIG_SPARE = 1 << 0,
136 VDEV_CONFIG_L2CACHE = 1 << 1,
137 VDEV_CONFIG_REMOVING = 1 << 2
138 } vdev_config_flag_t;
139
140 extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config);
141 extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
142 boolean_t getstats, vdev_config_flag_t flags);
143
144 /*
|