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 81e14bb325SJeff Bonwick enum zio_taskq_type { 82e14bb325SJeff Bonwick ZIO_TASKQ_ISSUE = 0, 83*80eb36f2SGeorge Wilson ZIO_TASKQ_ISSUE_HIGH, 84e14bb325SJeff Bonwick ZIO_TASKQ_INTERRUPT, 85*80eb36f2SGeorge Wilson ZIO_TASKQ_INTERRUPT_HIGH, 86e14bb325SJeff Bonwick ZIO_TASKQ_TYPES 87e14bb325SJeff Bonwick }; 88e14bb325SJeff Bonwick 89fa9e4066Sahrens struct spa { 90fa9e4066Sahrens /* 91fa9e4066Sahrens * Fields protected by spa_namespace_lock. 92fa9e4066Sahrens */ 93e14bb325SJeff Bonwick char spa_name[MAXNAMELEN]; /* pool name */ 940373e76bSbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 950373e76bSbonwick nvlist_t *spa_config; /* last synced config */ 960373e76bSbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 97fa9e4066Sahrens uint64_t spa_config_txg; /* txg of last config change */ 98fa9e4066Sahrens int spa_sync_pass; /* iterate-to-convergence */ 9988b7b0f2SMatthew Ahrens pool_state_t spa_state; /* pool state */ 100ea8dc4b6Seschrock int spa_inject_ref; /* injection references */ 101ea8dc4b6Seschrock uint8_t spa_sync_on; /* sync threads are running */ 102ea8dc4b6Seschrock spa_load_state_t spa_load_state; /* current load operation */ 103bc758434SLin Ling boolean_t spa_load_verbatim; /* load the given config? */ 104e14bb325SJeff Bonwick taskq_t *spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES]; 105fa9e4066Sahrens dsl_pool_t *spa_dsl_pool; 106fa9e4066Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 1078654d025Sperrin metaslab_class_t *spa_log_class; /* intent log data class */ 108fa9e4066Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 1090373e76bSbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 110fa9e4066Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 111468c413aSTim Haley uint64_t spa_load_max_txg; /* best initial ub_txg */ 112b24ab676SJeff Bonwick uint64_t spa_claim_max_txg; /* highest claimed birth txg */ 113fa9e4066Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 114fa9e4066Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 115fa9e4066Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 116b5989ec7Seschrock uint64_t spa_load_guid; /* initial guid for spa_load */ 117e14bb325SJeff Bonwick list_t spa_config_dirty_list; /* vdevs with dirty config */ 118e14bb325SJeff Bonwick list_t spa_state_dirty_list; /* vdevs with dirty state */ 119fa94a07fSbrendan spa_aux_vdev_t spa_spares; /* hot spares */ 120fa94a07fSbrendan spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ 121fa9e4066Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 1228f18d1faSGeorge Wilson uint64_t spa_config_generation; /* config generation number */ 123fa9e4066Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 124b24ab676SJeff Bonwick uint64_t spa_deferred_bplist_obj; /* object for deferred frees */ 125b24ab676SJeff Bonwick bplist_t spa_deferred_bplist; /* deferred-free bplist */ 126b24ab676SJeff Bonwick bplist_t spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */ 127fa9e4066Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 128fa9e4066Sahrens uberblock_t spa_uberblock; /* current uberblock */ 129468c413aSTim Haley boolean_t spa_extreme_rewind; /* rewind past deferred frees */ 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 */ 147468c413aSTim Haley int spa_last_open_failed; /* error if last open failed */ 148468c413aSTim Haley nvlist_t *spa_failed_open_cfg; /* cached config nvlist */ 149468c413aSTim Haley uint64_t spa_last_ubsync_txg; /* "best" uberblock txg */ 150468c413aSTim Haley uint64_t spa_last_ubsync_txg_ts; /* timestamp from that ub */ 151468c413aSTim Haley uint64_t spa_load_txg; /* ub txg that loaded */ 152468c413aSTim Haley uint64_t spa_load_txg_ts; /* timestamp from that ub */ 153468c413aSTim Haley uint64_t spa_load_meta_errors; /* verify metadata err count */ 154468c413aSTim Haley uint64_t spa_load_data_errors; /* verify data err count */ 155468c413aSTim Haley uint64_t spa_verify_min_txg; /* start txg of verify scrub */ 156ea8dc4b6Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 157ea8dc4b6Seschrock uint64_t spa_errlog_last; /* last error log object */ 158ea8dc4b6Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 159ea8dc4b6Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 160ea8dc4b6Seschrock avl_tree_t spa_errlist_last; /* last error list */ 161ea8dc4b6Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 16299653d4eSeschrock uint64_t spa_deflate; /* should we deflate? */ 16306eeb2adSek uint64_t spa_history; /* history object */ 16406eeb2adSek kmutex_t spa_history_lock; /* history lock */ 16539c23413Seschrock vdev_t *spa_pending_vdev; /* pending vdev additions */ 166b1b8ab34Slling kmutex_t spa_props_lock; /* property lock */ 167b1b8ab34Slling uint64_t spa_pool_props_object; /* object for properties */ 168b1b8ab34Slling uint64_t spa_bootfs; /* default boot filesystem */ 169e14bb325SJeff Bonwick uint64_t spa_failmode; /* failure mode for the pool */ 170e14bb325SJeff Bonwick uint64_t spa_delegation; /* delegation on/off */ 171c5904d13Seschrock list_t spa_config_list; /* previous cache file(s) */ 17254d692b7SGeorge Wilson zio_t *spa_async_zio_root; /* root of all async I/O */ 173e14bb325SJeff Bonwick zio_t *spa_suspend_zio_root; /* root of all suspended I/O */ 174e14bb325SJeff Bonwick kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ 175e14bb325SJeff Bonwick kcondvar_t spa_suspend_cv; /* notification of resume */ 176e14bb325SJeff Bonwick uint8_t spa_suspended; /* pool is suspended */ 177b24ab676SJeff Bonwick uint8_t spa_claiming; /* pool is doing zil_claim() */ 178bf82a41bSeschrock boolean_t spa_is_root; /* pool is root */ 179088f3894Sahrens int spa_minref; /* num refs when first opened */ 1808ad4d6ddSJeff Bonwick int spa_mode; /* FREAD | FWRITE */ 181b87f3af3Sperrin spa_log_state_t spa_log_state; /* log state */ 182573ca77eSGeorge Wilson uint64_t spa_autoexpand; /* lun expansion on/off */ 183b24ab676SJeff Bonwick ddt_t *spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */ 184b24ab676SJeff Bonwick uint64_t spa_ddt_stat_object; /* DDT statistics */ 185b24ab676SJeff Bonwick uint64_t spa_dedup_ditto; /* dedup ditto threshold */ 186b24ab676SJeff Bonwick uint64_t spa_dedup_checksum; /* default dedup checksum */ 187485bbbf5SGeorge Wilson uint64_t spa_dspace; /* dspace in normal class */ 188a1521560SJeff Bonwick kmutex_t spa_vdev_top_lock; /* dueling offline/remove */ 189b693757aSEric Schrock boolean_t spa_autoreplace; /* autoreplace set in open */ 1908f18d1faSGeorge Wilson int spa_vdev_locks; /* locks grabbed */ 191fa9e4066Sahrens /* 19291ebeef5Sahrens * spa_refcnt & spa_config_lock must be the last elements 19391ebeef5Sahrens * because refcount_t changes size based on compilation options. 19491ebeef5Sahrens * In order for the MDB module to function correctly, the other 19591ebeef5Sahrens * fields must remain in the same location. 196fa9e4066Sahrens */ 197e14bb325SJeff Bonwick spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */ 198fa9e4066Sahrens refcount_t spa_refcount; /* number of opens */ 199fa9e4066Sahrens }; 200fa9e4066Sahrens 201c5904d13Seschrock extern const char *spa_config_path; 202fa9e4066Sahrens 203fa9e4066Sahrens #ifdef __cplusplus 204fa9e4066Sahrens } 205fa9e4066Sahrens #endif 206fa9e4066Sahrens 207fa9e4066Sahrens #endif /* _SYS_SPA_IMPL_H */ 208