1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 2254d692b7SGeorge Wilson * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_SPA_IMPL_H 27fa9e4066Sahrens #define _SYS_SPA_IMPL_H 28fa9e4066Sahrens 29fa9e4066Sahrens #include <sys/spa.h> 30fa9e4066Sahrens #include <sys/vdev.h> 31fa9e4066Sahrens #include <sys/metaslab.h> 32fa9e4066Sahrens #include <sys/dmu.h> 33fa9e4066Sahrens #include <sys/dsl_pool.h> 34fa9e4066Sahrens #include <sys/uberblock_impl.h> 35fa9e4066Sahrens #include <sys/zfs_context.h> 36fa9e4066Sahrens #include <sys/avl.h> 37fa9e4066Sahrens #include <sys/refcount.h> 38fa9e4066Sahrens #include <sys/bplist.h> 39fa9e4066Sahrens 40fa9e4066Sahrens #ifdef __cplusplus 41fa9e4066Sahrens extern "C" { 42fa9e4066Sahrens #endif 43fa9e4066Sahrens 44ea8dc4b6Seschrock typedef struct spa_error_entry { 45ea8dc4b6Seschrock zbookmark_t se_bookmark; 46ea8dc4b6Seschrock char *se_name; 47ea8dc4b6Seschrock avl_node_t se_avl; 48ea8dc4b6Seschrock } spa_error_entry_t; 49ea8dc4b6Seschrock 5006eeb2adSek typedef struct spa_history_phys { 5106eeb2adSek uint64_t sh_pool_create_len; /* ending offset of zpool create */ 5206eeb2adSek uint64_t sh_phys_max_off; /* physical EOF */ 5306eeb2adSek uint64_t sh_bof; /* logical BOF */ 5406eeb2adSek uint64_t sh_eof; /* logical EOF */ 5506eeb2adSek uint64_t sh_records_lost; /* num of records overwritten */ 5606eeb2adSek } spa_history_phys_t; 5706eeb2adSek 58fa94a07fSbrendan struct spa_aux_vdev { 59fa94a07fSbrendan uint64_t sav_object; /* MOS object for device list */ 60fa94a07fSbrendan nvlist_t *sav_config; /* cached device config */ 61fa94a07fSbrendan vdev_t **sav_vdevs; /* devices */ 62fa94a07fSbrendan int sav_count; /* number devices */ 63fa94a07fSbrendan boolean_t sav_sync; /* sync the device list */ 64fa94a07fSbrendan nvlist_t **sav_pending; /* pending device additions */ 65fa94a07fSbrendan uint_t sav_npending; /* # pending devices */ 66fa94a07fSbrendan }; 67fa94a07fSbrendan 68e05725b1Sbonwick typedef struct spa_config_lock { 69e05725b1Sbonwick kmutex_t scl_lock; 70e05725b1Sbonwick kthread_t *scl_writer; 71e14bb325SJeff Bonwick int scl_write_wanted; 72e05725b1Sbonwick kcondvar_t scl_cv; 73e05725b1Sbonwick refcount_t scl_count; 74e05725b1Sbonwick } spa_config_lock_t; 75e05725b1Sbonwick 76c5904d13Seschrock typedef struct spa_config_dirent { 77c5904d13Seschrock list_node_t scd_link; 78c5904d13Seschrock char *scd_path; 79c5904d13Seschrock } spa_config_dirent_t; 80c5904d13Seschrock 81b87f3af3Sperrin typedef enum spa_log_state { 82b87f3af3Sperrin SPA_LOG_UNKNOWN = 0, /* unknown log state */ 83b87f3af3Sperrin SPA_LOG_MISSING, /* missing log(s) */ 84b87f3af3Sperrin SPA_LOG_CLEAR, /* clear the log(s) */ 85b87f3af3Sperrin SPA_LOG_GOOD, /* log(s) are good */ 86b87f3af3Sperrin } spa_log_state_t; 87b87f3af3Sperrin 88e14bb325SJeff Bonwick enum zio_taskq_type { 89e14bb325SJeff Bonwick ZIO_TASKQ_ISSUE = 0, 90e14bb325SJeff Bonwick ZIO_TASKQ_INTERRUPT, 91e14bb325SJeff Bonwick ZIO_TASKQ_TYPES 92e14bb325SJeff Bonwick }; 93e14bb325SJeff Bonwick 94fa9e4066Sahrens struct spa { 95fa9e4066Sahrens /* 96fa9e4066Sahrens * Fields protected by spa_namespace_lock. 97fa9e4066Sahrens */ 98e14bb325SJeff Bonwick char spa_name[MAXNAMELEN]; /* pool name */ 990373e76bSbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 1000373e76bSbonwick nvlist_t *spa_config; /* last synced config */ 1010373e76bSbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 102fa9e4066Sahrens uint64_t spa_config_txg; /* txg of last config change */ 103fa9e4066Sahrens int spa_sync_pass; /* iterate-to-convergence */ 10488b7b0f2SMatthew Ahrens pool_state_t spa_state; /* pool state */ 105ea8dc4b6Seschrock int spa_inject_ref; /* injection references */ 106ea8dc4b6Seschrock uint8_t spa_sync_on; /* sync threads are running */ 107ea8dc4b6Seschrock spa_load_state_t spa_load_state; /* current load operation */ 108*bc758434SLin Ling boolean_t spa_load_verbatim; /* load the given config? */ 109e14bb325SJeff Bonwick taskq_t *spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES]; 110fa9e4066Sahrens dsl_pool_t *spa_dsl_pool; 111fa9e4066Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 1128654d025Sperrin metaslab_class_t *spa_log_class; /* intent log data class */ 113fa9e4066Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 1140373e76bSbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 115fa9e4066Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 116fa9e4066Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 117fa9e4066Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 118fa9e4066Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 119b5989ec7Seschrock uint64_t spa_load_guid; /* initial guid for spa_load */ 120e14bb325SJeff Bonwick list_t spa_config_dirty_list; /* vdevs with dirty config */ 121e14bb325SJeff Bonwick list_t spa_state_dirty_list; /* vdevs with dirty state */ 122fa94a07fSbrendan spa_aux_vdev_t spa_spares; /* hot spares */ 123fa94a07fSbrendan spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ 124fa9e4066Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 125fa9e4066Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 126fa9e4066Sahrens uint64_t spa_sync_bplist_obj; /* object for deferred frees */ 127fa9e4066Sahrens bplist_t spa_sync_bplist; /* deferred-free bplist */ 128fa9e4066Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 129fa9e4066Sahrens uberblock_t spa_uberblock; /* current uberblock */ 130fa9e4066Sahrens kmutex_t spa_scrub_lock; /* resilver/scrub lock */ 131fa9e4066Sahrens uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ 13205b2b3b8Smishra uint64_t spa_scrub_maxinflight; /* max in-flight scrub I/Os */ 133fa9e4066Sahrens uint64_t spa_scrub_errors; /* scrub I/O error count */ 134fa9e4066Sahrens kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ 135fa9e4066Sahrens uint8_t spa_scrub_active; /* active or suspended? */ 136fa9e4066Sahrens uint8_t spa_scrub_type; /* type of scrub we're doing */ 1370373e76bSbonwick uint8_t spa_scrub_finished; /* indicator to rotate logs */ 138088f3894Sahrens uint8_t spa_scrub_started; /* started since last boot */ 139088f3894Sahrens uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */ 140ea8dc4b6Seschrock kmutex_t spa_async_lock; /* protect async state */ 141ea8dc4b6Seschrock kthread_t *spa_async_thread; /* thread doing async task */ 142ea8dc4b6Seschrock int spa_async_suspended; /* async tasks suspended */ 143ea8dc4b6Seschrock kcondvar_t spa_async_cv; /* wait for thread_exit() */ 144ea8dc4b6Seschrock uint16_t spa_async_tasks; /* async task mask */ 145fa9e4066Sahrens char *spa_root; /* alternate root directory */ 146ea8dc4b6Seschrock uint64_t spa_ena; /* spa-wide ereport ENA */ 147ea8dc4b6Seschrock boolean_t spa_last_open_failed; /* true if last open faled */ 148ea8dc4b6Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 149ea8dc4b6Seschrock uint64_t spa_errlog_last; /* last error log object */ 150ea8dc4b6Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 151ea8dc4b6Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 152ea8dc4b6Seschrock avl_tree_t spa_errlist_last; /* last error list */ 153ea8dc4b6Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 15499653d4eSeschrock uint64_t spa_deflate; /* should we deflate? */ 15506eeb2adSek uint64_t spa_history; /* history object */ 15606eeb2adSek kmutex_t spa_history_lock; /* history lock */ 15739c23413Seschrock vdev_t *spa_pending_vdev; /* pending vdev additions */ 158b1b8ab34Slling kmutex_t spa_props_lock; /* property lock */ 159b1b8ab34Slling uint64_t spa_pool_props_object; /* object for properties */ 160b1b8ab34Slling uint64_t spa_bootfs; /* default boot filesystem */ 161e14bb325SJeff Bonwick uint64_t spa_failmode; /* failure mode for the pool */ 162e14bb325SJeff Bonwick uint64_t spa_delegation; /* delegation on/off */ 163c5904d13Seschrock list_t spa_config_list; /* previous cache file(s) */ 16454d692b7SGeorge Wilson zio_t *spa_async_zio_root; /* root of all async I/O */ 165e14bb325SJeff Bonwick zio_t *spa_suspend_zio_root; /* root of all suspended I/O */ 166e14bb325SJeff Bonwick kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ 167e14bb325SJeff Bonwick kcondvar_t spa_suspend_cv; /* notification of resume */ 168e14bb325SJeff Bonwick uint8_t spa_suspended; /* pool is suspended */ 169bf82a41bSeschrock boolean_t spa_is_root; /* pool is root */ 170088f3894Sahrens int spa_minref; /* num refs when first opened */ 1718ad4d6ddSJeff Bonwick int spa_mode; /* FREAD | FWRITE */ 172b87f3af3Sperrin spa_log_state_t spa_log_state; /* log state */ 173573ca77eSGeorge Wilson uint64_t spa_autoexpand; /* lun expansion on/off */ 174fa9e4066Sahrens /* 17591ebeef5Sahrens * spa_refcnt & spa_config_lock must be the last elements 17691ebeef5Sahrens * because refcount_t changes size based on compilation options. 17791ebeef5Sahrens * In order for the MDB module to function correctly, the other 17891ebeef5Sahrens * fields must remain in the same location. 179fa9e4066Sahrens */ 180e14bb325SJeff Bonwick spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */ 181fa9e4066Sahrens refcount_t spa_refcount; /* number of opens */ 182fa9e4066Sahrens }; 183fa9e4066Sahrens 184c5904d13Seschrock extern const char *spa_config_path; 185fa9e4066Sahrens 18615e6edf1Sgw #define BOOTFS_COMPRESS_VALID(compress) \ 18715e6edf1Sgw ((compress) == ZIO_COMPRESS_LZJB || \ 18815e6edf1Sgw ((compress) == ZIO_COMPRESS_ON && \ 18915e6edf1Sgw ZIO_COMPRESS_ON_VALUE == ZIO_COMPRESS_LZJB) || \ 19015e6edf1Sgw (compress) == ZIO_COMPRESS_OFF) 19115e6edf1Sgw 192fa9e4066Sahrens #ifdef __cplusplus 193fa9e4066Sahrens } 194fa9e4066Sahrens #endif 195fa9e4066Sahrens 196fa9e4066Sahrens #endif /* _SYS_SPA_IMPL_H */ 197