| /* |
| * 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) 2011, 2017 by Delphix. All rights reserved. |
| * Copyright (c) 2017, Intel Corporation. |
| * Copyright (c) 2019, Datto Inc. 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 void vdev_dbgmsg(vdev_t *vd, const char *fmt, ...); |
| extern void vdev_dbgmsg_print_tree(vdev_t *, int); |
| extern int vdev_open(vdev_t *); |
| extern void vdev_open_children(vdev_t *); |
| extern int vdev_validate(vdev_t *); |
| extern int vdev_copy_path_strict(vdev_t *, vdev_t *); |
| extern void vdev_copy_path_relaxed(vdev_t *, vdev_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_concrete(vdev_t *vd); |
| 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 int vdev_count_leaves(spa_t *spa); |
| 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 boolean_t vdev_dtl_need_resilver(vdev_t *vd, uint64_t off, size_t size); |
| 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_destroy_unlink_zap(vdev_t *vd, uint64_t zapobj, |
| dmu_tx_t *tx); |
| extern uint64_t vdev_create_link_zap(vdev_t *vd, dmu_tx_t *tx); |
| extern void vdev_construct_zaps(vdev_t *vd, dmu_tx_t *tx); |
| extern void vdev_destroy_spacemaps(vdev_t *vd, dmu_tx_t *tx); |
| extern void vdev_indirect_mark_obsolete(vdev_t *vd, uint64_t offset, |
| uint64_t size); |
| extern void spa_vdev_indirect_mark_obsolete(spa_t *spa, uint64_t vdev, |
| uint64_t offset, uint64_t size, dmu_tx_t *tx); |
| |
| 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, char *tag); |
| extern void vdev_xlate(vdev_t *vd, const range_seg_t *logical_rs, |
| range_seg_t *physical_rs); |
| |
| extern void vdev_get_stats_ex(vdev_t *vd, vdev_stat_t *vs, vdev_stat_ex_t *vsx); |
| 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 boolean_t vdev_children_are_offline(vdev_t *vd); |
| |
| extern void vdev_space_update(vdev_t *vd, |
| int64_t alloc_delta, int64_t defer_delta, int64_t space_delta); |
| |
| extern int64_t vdev_deflated_space(vdev_t *vd, int64_t space); |
| |
| 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 boolean_t vdev_is_spacemap_addressable(vdev_t *vd); |
| |
| extern void vdev_cache_init(vdev_t *vd); |
| extern void vdev_cache_fini(vdev_t *vd); |
| extern boolean_t 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_queue_change_io_priority(zio_t *zio, zio_priority_t priority); |
| |
| extern int vdev_queue_length(vdev_t *vd); |
| extern uint64_t vdev_queue_last_offset(vdev_t *vd); |
| |
| 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); |
| |
| extern void vdev_state_dirty(vdev_t *vd); |
| extern void vdev_state_clean(vdev_t *vd); |
| |
| extern void vdev_defer_resilver(vdev_t *vd); |
| extern boolean_t vdev_clear_resilver_deferred(vdev_t *vd, dmu_tx_t *tx); |
| |
| typedef enum vdev_config_flag { |
| VDEV_CONFIG_SPARE = 1 << 0, |
| VDEV_CONFIG_L2CACHE = 1 << 1, |
| VDEV_CONFIG_REMOVING = 1 << 2, |
| VDEV_CONFIG_MOS = 1 << 3, |
| VDEV_CONFIG_MISSING = 1 << 4 |
| } 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 **); |
| extern void vdev_config_generate_stats(vdev_t *vd, nvlist_t *nv); |
| extern void vdev_label_write(zio_t *zio, vdev_t *vd, int l, abd_t *buf, uint64_t |
| offset, uint64_t size, zio_done_func_t *done, void *private, int flags); |
| |
| 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 */ |