1789Sahrens /* 2789Sahrens * CDDL HEADER START 3789Sahrens * 4789Sahrens * The contents of this file are subject to the terms of the 51485Slling * Common Development and Distribution License (the "License"). 61485Slling * You may not use this file except in compliance with the License. 7789Sahrens * 8789Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9789Sahrens * or http://www.opensolaris.org/os/licensing. 10789Sahrens * See the License for the specific language governing permissions 11789Sahrens * and limitations under the License. 12789Sahrens * 13789Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14789Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15789Sahrens * If applicable, add the following below this CDDL HEADER, with the 16789Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17789Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18789Sahrens * 19789Sahrens * CDDL HEADER END 20789Sahrens */ 21789Sahrens /* 226615Sgw25295 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23789Sahrens * Use is subject to license terms. 24789Sahrens */ 25789Sahrens 26789Sahrens #ifndef _SYS_VDEV_H 27789Sahrens #define _SYS_VDEV_H 28789Sahrens 29789Sahrens #include <sys/spa.h> 30789Sahrens #include <sys/zio.h> 31789Sahrens #include <sys/dmu.h> 32789Sahrens #include <sys/space_map.h> 33789Sahrens #include <sys/fs/zfs.h> 34789Sahrens 35789Sahrens #ifdef __cplusplus 36789Sahrens extern "C" { 37789Sahrens #endif 38789Sahrens 392986Sek110237 extern boolean_t zfs_nocacheflush; 402986Sek110237 41789Sahrens extern int vdev_open(vdev_t *); 421986Seschrock extern int vdev_validate(vdev_t *); 43789Sahrens extern void vdev_close(vdev_t *); 442082Seschrock extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace); 451585Sbonwick extern void vdev_init(vdev_t *, uint64_t txg); 461544Seschrock extern void vdev_reopen(vdev_t *); 475450Sbrendan extern int vdev_validate_aux(vdev_t *vd); 487754SJeff.Bonwick@Sun.COM extern zio_t *vdev_probe(vdev_t *vd, zio_t *pio); 49789Sahrens 507042Sgw25295 extern boolean_t vdev_is_bootable(vdev_t *vd); 51789Sahrens extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev); 52789Sahrens extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid); 53789Sahrens extern void vdev_dtl_dirty(space_map_t *sm, uint64_t txg, uint64_t size); 54789Sahrens extern int vdev_dtl_contains(space_map_t *sm, uint64_t txg, uint64_t size); 55789Sahrens extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, 56789Sahrens int scrub_done); 577046Sahrens extern boolean_t vdev_resilver_needed(vdev_t *vd, 587046Sahrens uint64_t *minp, uint64_t *maxp); 59789Sahrens 601544Seschrock extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg); 61789Sahrens extern void vdev_metaslab_fini(vdev_t *vd); 62789Sahrens 63789Sahrens extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs); 645450Sbrendan extern void vdev_clear_stats(vdev_t *vd); 657754SJeff.Bonwick@Sun.COM extern void vdev_stat_update(zio_t *zio, uint64_t psize); 66789Sahrens extern void vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type, 67789Sahrens boolean_t complete); 68789Sahrens extern int vdev_getspec(spa_t *spa, uint64_t vdev, char **vdev_spec); 691775Sbillm extern void vdev_propagate_state(vdev_t *vd); 701544Seschrock extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, 711544Seschrock vdev_aux_t aux); 72789Sahrens 732082Seschrock extern void vdev_space_update(vdev_t *vd, int64_t space_delta, 745450Sbrendan int64_t alloc_delta, boolean_t update_root); 75789Sahrens 76789Sahrens extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize); 77789Sahrens 784451Seschrock extern int vdev_fault(spa_t *spa, uint64_t guid); 794451Seschrock extern int vdev_degrade(spa_t *spa, uint64_t guid); 804451Seschrock extern int vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, 814451Seschrock vdev_state_t *); 824451Seschrock extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags); 837754SJeff.Bonwick@Sun.COM extern void vdev_clear(spa_t *spa, vdev_t *vd); 84789Sahrens 857754SJeff.Bonwick@Sun.COM extern boolean_t vdev_is_dead(vdev_t *vd); 867754SJeff.Bonwick@Sun.COM extern boolean_t vdev_readable(vdev_t *vd); 877754SJeff.Bonwick@Sun.COM extern boolean_t vdev_writeable(vdev_t *vd); 88*7980SGeorge.Wilson@Sun.COM extern boolean_t vdev_allocatable(vdev_t *vd); 897754SJeff.Bonwick@Sun.COM extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio); 90789Sahrens 91789Sahrens extern void vdev_cache_init(vdev_t *vd); 92789Sahrens extern void vdev_cache_fini(vdev_t *vd); 93789Sahrens extern int vdev_cache_read(zio_t *zio); 94789Sahrens extern void vdev_cache_write(zio_t *zio); 954451Seschrock extern void vdev_cache_purge(vdev_t *vd); 96789Sahrens 97789Sahrens extern void vdev_queue_init(vdev_t *vd); 98789Sahrens extern void vdev_queue_fini(vdev_t *vd); 99789Sahrens extern zio_t *vdev_queue_io(zio_t *zio); 100789Sahrens extern void vdev_queue_io_done(zio_t *zio); 101789Sahrens 102789Sahrens extern void vdev_config_dirty(vdev_t *vd); 103789Sahrens extern void vdev_config_clean(vdev_t *vd); 1047754SJeff.Bonwick@Sun.COM extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg); 1057754SJeff.Bonwick@Sun.COM 1067754SJeff.Bonwick@Sun.COM extern void vdev_state_dirty(vdev_t *vd); 1077754SJeff.Bonwick@Sun.COM extern void vdev_state_clean(vdev_t *vd); 108789Sahrens 1092082Seschrock extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd, 1105450Sbrendan boolean_t getstats, boolean_t isspare, boolean_t isl2cache); 111789Sahrens 112789Sahrens /* 113789Sahrens * Label routines 114789Sahrens */ 115789Sahrens struct uberblock; 116789Sahrens extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset); 1176615Sgw25295 extern int vdev_label_number(uint64_t psise, uint64_t offset); 118789Sahrens extern nvlist_t *vdev_label_read_config(vdev_t *vd); 119789Sahrens extern void vdev_uberblock_load(zio_t *zio, vdev_t *vd, struct uberblock *ub); 1203377Seschrock 1213377Seschrock typedef enum { 1223377Seschrock VDEV_LABEL_CREATE, /* create/add a new device */ 1233377Seschrock VDEV_LABEL_REPLACE, /* replace an existing device */ 1243377Seschrock VDEV_LABEL_SPARE, /* add a new hot spare */ 1255450Sbrendan VDEV_LABEL_REMOVE, /* remove an existing device */ 1265450Sbrendan VDEV_LABEL_L2CACHE /* add an L2ARC cache device */ 1273377Seschrock } vdev_labeltype_t; 1283377Seschrock 1293377Seschrock extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason); 130789Sahrens 131789Sahrens #ifdef __cplusplus 132789Sahrens } 133789Sahrens #endif 134789Sahrens 135789Sahrens #endif /* _SYS_VDEV_H */ 136