164 lines
5.6 KiB
C
164 lines
5.6 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Copyright (c) 2012 by Delphix. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _SYS_VDEV_H
|
|
#define _SYS_VDEV_H
|
|
|
|
#include <sys/spa.h>
|
|
#include <sys/zio.h>
|
|
#include <sys/dmu.h>
|
|
#include <sys/space_map.h>
|
|
#include <sys/fs/zfs.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef enum vdev_dtl_type {
|
|
DTL_MISSING, /* 0% replication: no copies of the data */
|
|
DTL_PARTIAL, /* less than 100% replication: some copies missing */
|
|
DTL_SCRUB, /* unable to fully repair during scrub/resilver */
|
|
DTL_OUTAGE, /* temporarily missing (used to attempt detach) */
|
|
DTL_TYPES
|
|
} vdev_dtl_type_t;
|
|
|
|
extern int zfs_nocacheflush;
|
|
|
|
extern int vdev_open(vdev_t *);
|
|
extern void vdev_open_children(vdev_t *);
|
|
extern int vdev_validate(vdev_t *, boolean_t);
|
|
extern void vdev_close(vdev_t *);
|
|
extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace);
|
|
extern void vdev_reopen(vdev_t *);
|
|
extern int vdev_validate_aux(vdev_t *vd);
|
|
extern zio_t *vdev_probe(vdev_t *vd, zio_t *pio);
|
|
|
|
extern boolean_t vdev_is_bootable(vdev_t *vd);
|
|
extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev);
|
|
extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid);
|
|
extern void vdev_dtl_dirty(vdev_t *vd, vdev_dtl_type_t d,
|
|
uint64_t txg, uint64_t size);
|
|
extern boolean_t vdev_dtl_contains(vdev_t *vd, vdev_dtl_type_t d,
|
|
uint64_t txg, uint64_t size);
|
|
extern boolean_t vdev_dtl_empty(vdev_t *vd, vdev_dtl_type_t d);
|
|
extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg,
|
|
int scrub_done);
|
|
extern boolean_t vdev_dtl_required(vdev_t *vd);
|
|
extern boolean_t vdev_resilver_needed(vdev_t *vd,
|
|
uint64_t *minp, uint64_t *maxp);
|
|
|
|
extern void vdev_hold(vdev_t *);
|
|
extern void vdev_rele(vdev_t *);
|
|
|
|
extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg);
|
|
extern void vdev_metaslab_fini(vdev_t *vd);
|
|
extern void vdev_metaslab_set_size(vdev_t *);
|
|
extern void vdev_expand(vdev_t *vd, uint64_t txg);
|
|
extern void vdev_split(vdev_t *vd);
|
|
extern void vdev_deadman(vdev_t *vd);
|
|
|
|
|
|
extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs);
|
|
extern void vdev_clear_stats(vdev_t *vd);
|
|
extern void vdev_stat_update(zio_t *zio, uint64_t psize);
|
|
extern void vdev_scan_stat_init(vdev_t *vd);
|
|
extern void vdev_propagate_state(vdev_t *vd);
|
|
extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state,
|
|
vdev_aux_t aux);
|
|
|
|
extern void vdev_space_update(vdev_t *vd,
|
|
int64_t alloc_delta, int64_t defer_delta, int64_t space_delta);
|
|
|
|
extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize);
|
|
|
|
extern int vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux);
|
|
extern int vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux);
|
|
extern int vdev_online(spa_t *spa, uint64_t guid, uint64_t flags,
|
|
vdev_state_t *);
|
|
extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags);
|
|
extern void vdev_clear(spa_t *spa, vdev_t *vd);
|
|
|
|
extern boolean_t vdev_is_dead(vdev_t *vd);
|
|
extern boolean_t vdev_readable(vdev_t *vd);
|
|
extern boolean_t vdev_writeable(vdev_t *vd);
|
|
extern boolean_t vdev_allocatable(vdev_t *vd);
|
|
extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio);
|
|
|
|
extern void vdev_cache_init(vdev_t *vd);
|
|
extern void vdev_cache_fini(vdev_t *vd);
|
|
extern int vdev_cache_read(zio_t *zio);
|
|
extern void vdev_cache_write(zio_t *zio);
|
|
extern void vdev_cache_purge(vdev_t *vd);
|
|
|
|
extern void vdev_queue_init(vdev_t *vd);
|
|
extern void vdev_queue_fini(vdev_t *vd);
|
|
extern zio_t *vdev_queue_io(zio_t *zio);
|
|
extern void vdev_queue_io_done(zio_t *zio);
|
|
|
|
extern void vdev_config_dirty(vdev_t *vd);
|
|
extern void vdev_config_clean(vdev_t *vd);
|
|
extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg,
|
|
boolean_t);
|
|
|
|
extern void vdev_state_dirty(vdev_t *vd);
|
|
extern void vdev_state_clean(vdev_t *vd);
|
|
|
|
typedef enum vdev_config_flag {
|
|
VDEV_CONFIG_SPARE = 1 << 0,
|
|
VDEV_CONFIG_L2CACHE = 1 << 1,
|
|
VDEV_CONFIG_REMOVING = 1 << 2
|
|
} vdev_config_flag_t;
|
|
|
|
extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config);
|
|
extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
|
|
boolean_t getstats, vdev_config_flag_t flags);
|
|
|
|
/*
|
|
* Label routines
|
|
*/
|
|
struct uberblock;
|
|
extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset);
|
|
extern int vdev_label_number(uint64_t psise, uint64_t offset);
|
|
extern nvlist_t *vdev_label_read_config(vdev_t *vd, uint64_t txg);
|
|
extern void vdev_uberblock_load(vdev_t *, struct uberblock *, nvlist_t **);
|
|
|
|
typedef enum {
|
|
VDEV_LABEL_CREATE, /* create/add a new device */
|
|
VDEV_LABEL_REPLACE, /* replace an existing device */
|
|
VDEV_LABEL_SPARE, /* add a new hot spare */
|
|
VDEV_LABEL_REMOVE, /* remove an existing device */
|
|
VDEV_LABEL_L2CACHE, /* add an L2ARC cache device */
|
|
VDEV_LABEL_SPLIT /* generating new label for split-off dev */
|
|
} vdev_labeltype_t;
|
|
|
|
extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_VDEV_H */
|