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 /* 22*3f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23fa9e4066Sahrens */ 24fa9e4066Sahrens 25fa9e4066Sahrens #ifndef _SYS_SPA_IMPL_H 26fa9e4066Sahrens #define _SYS_SPA_IMPL_H 27fa9e4066Sahrens 28fa9e4066Sahrens #include <sys/spa.h> 29fa9e4066Sahrens #include <sys/vdev.h> 30fa9e4066Sahrens #include <sys/metaslab.h> 31fa9e4066Sahrens #include <sys/dmu.h> 32fa9e4066Sahrens #include <sys/dsl_pool.h> 33fa9e4066Sahrens #include <sys/uberblock_impl.h> 34fa9e4066Sahrens #include <sys/zfs_context.h> 35fa9e4066Sahrens #include <sys/avl.h> 36fa9e4066Sahrens #include <sys/refcount.h> 37fa9e4066Sahrens #include <sys/bplist.h> 38fa9e4066Sahrens 39fa9e4066Sahrens #ifdef __cplusplus 40fa9e4066Sahrens extern "C" { 41fa9e4066Sahrens #endif 42fa9e4066Sahrens 43ea8dc4b6Seschrock typedef struct spa_error_entry { 44ea8dc4b6Seschrock zbookmark_t se_bookmark; 45ea8dc4b6Seschrock char *se_name; 46ea8dc4b6Seschrock avl_node_t se_avl; 47ea8dc4b6Seschrock } spa_error_entry_t; 48ea8dc4b6Seschrock 4906eeb2adSek typedef struct spa_history_phys { 5006eeb2adSek uint64_t sh_pool_create_len; /* ending offset of zpool create */ 5106eeb2adSek uint64_t sh_phys_max_off; /* physical EOF */ 5206eeb2adSek uint64_t sh_bof; /* logical BOF */ 5306eeb2adSek uint64_t sh_eof; /* logical EOF */ 5406eeb2adSek uint64_t sh_records_lost; /* num of records overwritten */ 5506eeb2adSek } spa_history_phys_t; 5606eeb2adSek 57fa94a07fSbrendan struct spa_aux_vdev { 58fa94a07fSbrendan uint64_t sav_object; /* MOS object for device list */ 59fa94a07fSbrendan nvlist_t *sav_config; /* cached device config */ 60fa94a07fSbrendan vdev_t **sav_vdevs; /* devices */ 61fa94a07fSbrendan int sav_count; /* number devices */ 62fa94a07fSbrendan boolean_t sav_sync; /* sync the device list */ 63fa94a07fSbrendan nvlist_t **sav_pending; /* pending device additions */ 64fa94a07fSbrendan uint_t sav_npending; /* # pending devices */ 65fa94a07fSbrendan }; 66fa94a07fSbrendan 67e05725b1Sbonwick typedef struct spa_config_lock { 68e05725b1Sbonwick kmutex_t scl_lock; 69e05725b1Sbonwick kthread_t *scl_writer; 70e14bb325SJeff Bonwick int scl_write_wanted; 71e05725b1Sbonwick kcondvar_t scl_cv; 72e05725b1Sbonwick refcount_t scl_count; 73e05725b1Sbonwick } spa_config_lock_t; 74e05725b1Sbonwick 75c5904d13Seschrock typedef struct spa_config_dirent { 76c5904d13Seschrock list_node_t scd_link; 77c5904d13Seschrock char *scd_path; 78c5904d13Seschrock } spa_config_dirent_t; 79c5904d13Seschrock 80e14bb325SJeff Bonwick enum zio_taskq_type { 81e14bb325SJeff Bonwick ZIO_TASKQ_ISSUE = 0, 8280eb36f2SGeorge Wilson ZIO_TASKQ_ISSUE_HIGH, 83e14bb325SJeff Bonwick ZIO_TASKQ_INTERRUPT, 8480eb36f2SGeorge Wilson ZIO_TASKQ_INTERRUPT_HIGH, 85e14bb325SJeff Bonwick ZIO_TASKQ_TYPES 86e14bb325SJeff Bonwick }; 87e14bb325SJeff Bonwick 8835a5a358SJonathan Adams /* 8935a5a358SJonathan Adams * State machine for the zpool-pooname process. The states transitions 9035a5a358SJonathan Adams * are done as follows: 9135a5a358SJonathan Adams * 9235a5a358SJonathan Adams * From To Routine 9335a5a358SJonathan Adams * PROC_NONE -> PROC_CREATED spa_activate() 9435a5a358SJonathan Adams * PROC_CREATED -> PROC_ACTIVE spa_thread() 9535a5a358SJonathan Adams * PROC_ACTIVE -> PROC_DEACTIVATE spa_deactivate() 9635a5a358SJonathan Adams * PROC_DEACTIVATE -> PROC_GONE spa_thread() 9735a5a358SJonathan Adams * PROC_GONE -> PROC_NONE spa_deactivate() 9835a5a358SJonathan Adams */ 9935a5a358SJonathan Adams typedef enum spa_proc_state { 10035a5a358SJonathan Adams SPA_PROC_NONE, /* spa_proc = &p0, no process created */ 10135a5a358SJonathan Adams SPA_PROC_CREATED, /* spa_activate() has proc, is waiting */ 10235a5a358SJonathan Adams SPA_PROC_ACTIVE, /* taskqs created, spa_proc set */ 10335a5a358SJonathan Adams SPA_PROC_DEACTIVATE, /* spa_deactivate() requests process exit */ 10435a5a358SJonathan Adams SPA_PROC_GONE /* spa_thread() is exiting, spa_proc = &p0 */ 10535a5a358SJonathan Adams } spa_proc_state_t; 10635a5a358SJonathan Adams 107fa9e4066Sahrens struct spa { 108fa9e4066Sahrens /* 109fa9e4066Sahrens * Fields protected by spa_namespace_lock. 110fa9e4066Sahrens */ 111e14bb325SJeff Bonwick char spa_name[MAXNAMELEN]; /* pool name */ 1120373e76bSbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 1130373e76bSbonwick nvlist_t *spa_config; /* last synced config */ 1140373e76bSbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 1151195e687SMark J Musante nvlist_t *spa_config_splitting; /* config for splitting */ 116fa9e4066Sahrens uint64_t spa_config_txg; /* txg of last config change */ 117fa9e4066Sahrens int spa_sync_pass; /* iterate-to-convergence */ 11888b7b0f2SMatthew Ahrens pool_state_t spa_state; /* pool state */ 119ea8dc4b6Seschrock int spa_inject_ref; /* injection references */ 120ea8dc4b6Seschrock uint8_t spa_sync_on; /* sync threads are running */ 121ea8dc4b6Seschrock spa_load_state_t spa_load_state; /* current load operation */ 122bc758434SLin Ling boolean_t spa_load_verbatim; /* load the given config? */ 123e14bb325SJeff Bonwick taskq_t *spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES]; 124fa9e4066Sahrens dsl_pool_t *spa_dsl_pool; 125fa9e4066Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 1268654d025Sperrin metaslab_class_t *spa_log_class; /* intent log data class */ 127fa9e4066Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 1280373e76bSbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 129fa9e4066Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 130468c413aSTim Haley uint64_t spa_load_max_txg; /* best initial ub_txg */ 131b24ab676SJeff Bonwick uint64_t spa_claim_max_txg; /* highest claimed birth txg */ 132fa9e4066Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 133fa9e4066Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 134fa9e4066Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 135b5989ec7Seschrock uint64_t spa_load_guid; /* initial guid for spa_load */ 136e14bb325SJeff Bonwick list_t spa_config_dirty_list; /* vdevs with dirty config */ 137e14bb325SJeff Bonwick list_t spa_state_dirty_list; /* vdevs with dirty state */ 138fa94a07fSbrendan spa_aux_vdev_t spa_spares; /* hot spares */ 139fa94a07fSbrendan spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ 140fa9e4066Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 1418f18d1faSGeorge Wilson uint64_t spa_config_generation; /* config generation number */ 142fa9e4066Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 143b24ab676SJeff Bonwick uint64_t spa_deferred_bplist_obj; /* object for deferred frees */ 144b24ab676SJeff Bonwick bplist_t spa_deferred_bplist; /* deferred-free bplist */ 145b24ab676SJeff Bonwick bplist_t spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */ 146fa9e4066Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 147fa9e4066Sahrens uberblock_t spa_uberblock; /* current uberblock */ 148468c413aSTim Haley boolean_t spa_extreme_rewind; /* rewind past deferred frees */ 149fa9e4066Sahrens kmutex_t spa_scrub_lock; /* resilver/scrub lock */ 150fa9e4066Sahrens uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ 15105b2b3b8Smishra uint64_t spa_scrub_maxinflight; /* max in-flight scrub I/Os */ 152fa9e4066Sahrens kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ 153fa9e4066Sahrens uint8_t spa_scrub_active; /* active or suspended? */ 154fa9e4066Sahrens uint8_t spa_scrub_type; /* type of scrub we're doing */ 1550373e76bSbonwick uint8_t spa_scrub_finished; /* indicator to rotate logs */ 156088f3894Sahrens uint8_t spa_scrub_started; /* started since last boot */ 157088f3894Sahrens uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */ 158*3f9d6ad7SLin Ling uint64_t spa_scan_pass_start; /* start time per pass/reboot */ 159*3f9d6ad7SLin Ling uint64_t spa_scan_pass_exam; /* examined bytes per pass */ 160ea8dc4b6Seschrock kmutex_t spa_async_lock; /* protect async state */ 161ea8dc4b6Seschrock kthread_t *spa_async_thread; /* thread doing async task */ 162ea8dc4b6Seschrock int spa_async_suspended; /* async tasks suspended */ 163ea8dc4b6Seschrock kcondvar_t spa_async_cv; /* wait for thread_exit() */ 164ea8dc4b6Seschrock uint16_t spa_async_tasks; /* async task mask */ 165fa9e4066Sahrens char *spa_root; /* alternate root directory */ 166ea8dc4b6Seschrock uint64_t spa_ena; /* spa-wide ereport ENA */ 167468c413aSTim Haley int spa_last_open_failed; /* error if last open failed */ 168468c413aSTim Haley uint64_t spa_last_ubsync_txg; /* "best" uberblock txg */ 169468c413aSTim Haley uint64_t spa_last_ubsync_txg_ts; /* timestamp from that ub */ 170468c413aSTim Haley uint64_t spa_load_txg; /* ub txg that loaded */ 171468c413aSTim Haley uint64_t spa_load_txg_ts; /* timestamp from that ub */ 172468c413aSTim Haley uint64_t spa_load_meta_errors; /* verify metadata err count */ 173468c413aSTim Haley uint64_t spa_load_data_errors; /* verify data err count */ 174468c413aSTim Haley uint64_t spa_verify_min_txg; /* start txg of verify scrub */ 175ea8dc4b6Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 176ea8dc4b6Seschrock uint64_t spa_errlog_last; /* last error log object */ 177ea8dc4b6Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 178ea8dc4b6Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 179ea8dc4b6Seschrock avl_tree_t spa_errlist_last; /* last error list */ 180ea8dc4b6Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 18199653d4eSeschrock uint64_t spa_deflate; /* should we deflate? */ 18206eeb2adSek uint64_t spa_history; /* history object */ 18306eeb2adSek kmutex_t spa_history_lock; /* history lock */ 18439c23413Seschrock vdev_t *spa_pending_vdev; /* pending vdev additions */ 185b1b8ab34Slling kmutex_t spa_props_lock; /* property lock */ 186b1b8ab34Slling uint64_t spa_pool_props_object; /* object for properties */ 187b1b8ab34Slling uint64_t spa_bootfs; /* default boot filesystem */ 188e14bb325SJeff Bonwick uint64_t spa_failmode; /* failure mode for the pool */ 189e14bb325SJeff Bonwick uint64_t spa_delegation; /* delegation on/off */ 190c5904d13Seschrock list_t spa_config_list; /* previous cache file(s) */ 19154d692b7SGeorge Wilson zio_t *spa_async_zio_root; /* root of all async I/O */ 192e14bb325SJeff Bonwick zio_t *spa_suspend_zio_root; /* root of all suspended I/O */ 193e14bb325SJeff Bonwick kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ 194e14bb325SJeff Bonwick kcondvar_t spa_suspend_cv; /* notification of resume */ 195e14bb325SJeff Bonwick uint8_t spa_suspended; /* pool is suspended */ 196b24ab676SJeff Bonwick uint8_t spa_claiming; /* pool is doing zil_claim() */ 197bf82a41bSeschrock boolean_t spa_is_root; /* pool is root */ 198088f3894Sahrens int spa_minref; /* num refs when first opened */ 1998ad4d6ddSJeff Bonwick int spa_mode; /* FREAD | FWRITE */ 200b87f3af3Sperrin spa_log_state_t spa_log_state; /* log state */ 201573ca77eSGeorge Wilson uint64_t spa_autoexpand; /* lun expansion on/off */ 202b24ab676SJeff Bonwick ddt_t *spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */ 203b24ab676SJeff Bonwick uint64_t spa_ddt_stat_object; /* DDT statistics */ 204b24ab676SJeff Bonwick uint64_t spa_dedup_ditto; /* dedup ditto threshold */ 205b24ab676SJeff Bonwick uint64_t spa_dedup_checksum; /* default dedup checksum */ 206485bbbf5SGeorge Wilson uint64_t spa_dspace; /* dspace in normal class */ 207a1521560SJeff Bonwick kmutex_t spa_vdev_top_lock; /* dueling offline/remove */ 20835a5a358SJonathan Adams kmutex_t spa_proc_lock; /* protects spa_proc* */ 20935a5a358SJonathan Adams kcondvar_t spa_proc_cv; /* spa_proc_state transitions */ 21035a5a358SJonathan Adams spa_proc_state_t spa_proc_state; /* see definition */ 21135a5a358SJonathan Adams struct proc *spa_proc; /* "zpool-poolname" process */ 21235a5a358SJonathan Adams uint64_t spa_did; /* if procp != p0, did of t1 */ 213b693757aSEric Schrock boolean_t spa_autoreplace; /* autoreplace set in open */ 2148f18d1faSGeorge Wilson int spa_vdev_locks; /* locks grabbed */ 215*3f9d6ad7SLin Ling uint64_t spa_creation_version; /* version at pool creation */ 216*3f9d6ad7SLin Ling uint64_t spa_prev_software_version; 217fa9e4066Sahrens /* 21891ebeef5Sahrens * spa_refcnt & spa_config_lock must be the last elements 21991ebeef5Sahrens * because refcount_t changes size based on compilation options. 22091ebeef5Sahrens * In order for the MDB module to function correctly, the other 22191ebeef5Sahrens * fields must remain in the same location. 222fa9e4066Sahrens */ 223e14bb325SJeff Bonwick spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */ 224fa9e4066Sahrens refcount_t spa_refcount; /* number of opens */ 225fa9e4066Sahrens }; 226fa9e4066Sahrens 227c5904d13Seschrock extern const char *spa_config_path; 228fa9e4066Sahrens 229fa9e4066Sahrens #ifdef __cplusplus 230fa9e4066Sahrens } 231fa9e4066Sahrens #endif 232fa9e4066Sahrens 233fa9e4066Sahrens #endif /* _SYS_SPA_IMPL_H */ 234