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 /* 223f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 237802d7bfSMatthew Ahrens * Copyright (c) 2011, 2014 by Delphix. All rights reserved. 24e9103aaeSGarrett D'Amore * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 25fa9e4066Sahrens */ 26fa9e4066Sahrens 27fa9e4066Sahrens #ifndef _SYS_SPA_IMPL_H 28fa9e4066Sahrens #define _SYS_SPA_IMPL_H 29fa9e4066Sahrens 30fa9e4066Sahrens #include <sys/spa.h> 31fa9e4066Sahrens #include <sys/vdev.h> 32fa9e4066Sahrens #include <sys/metaslab.h> 33fa9e4066Sahrens #include <sys/dmu.h> 34fa9e4066Sahrens #include <sys/dsl_pool.h> 35fa9e4066Sahrens #include <sys/uberblock_impl.h> 36fa9e4066Sahrens #include <sys/zfs_context.h> 37fa9e4066Sahrens #include <sys/avl.h> 38fa9e4066Sahrens #include <sys/refcount.h> 39fa9e4066Sahrens #include <sys/bplist.h> 40cde58dbcSMatthew Ahrens #include <sys/bpobj.h> 415d7b4d43SMatthew Ahrens #include <sys/zfeature.h> 4243466aaeSMax Grossman #include <zfeature_common.h> 43fa9e4066Sahrens 44fa9e4066Sahrens #ifdef __cplusplus 45fa9e4066Sahrens extern "C" { 46fa9e4066Sahrens #endif 47fa9e4066Sahrens 48ea8dc4b6Seschrock typedef struct spa_error_entry { 497802d7bfSMatthew Ahrens zbookmark_phys_t se_bookmark; 507802d7bfSMatthew Ahrens char *se_name; 517802d7bfSMatthew Ahrens avl_node_t se_avl; 52ea8dc4b6Seschrock } spa_error_entry_t; 53ea8dc4b6Seschrock 5406eeb2adSek typedef struct spa_history_phys { 5506eeb2adSek uint64_t sh_pool_create_len; /* ending offset of zpool create */ 5606eeb2adSek uint64_t sh_phys_max_off; /* physical EOF */ 5706eeb2adSek uint64_t sh_bof; /* logical BOF */ 5806eeb2adSek uint64_t sh_eof; /* logical EOF */ 5906eeb2adSek uint64_t sh_records_lost; /* num of records overwritten */ 6006eeb2adSek } spa_history_phys_t; 6106eeb2adSek 62fa94a07fSbrendan struct spa_aux_vdev { 63fa94a07fSbrendan uint64_t sav_object; /* MOS object for device list */ 64fa94a07fSbrendan nvlist_t *sav_config; /* cached device config */ 65fa94a07fSbrendan vdev_t **sav_vdevs; /* devices */ 66fa94a07fSbrendan int sav_count; /* number devices */ 67fa94a07fSbrendan boolean_t sav_sync; /* sync the device list */ 68fa94a07fSbrendan nvlist_t **sav_pending; /* pending device additions */ 69fa94a07fSbrendan uint_t sav_npending; /* # pending devices */ 70fa94a07fSbrendan }; 71fa94a07fSbrendan 72e05725b1Sbonwick typedef struct spa_config_lock { 73e05725b1Sbonwick kmutex_t scl_lock; 74e05725b1Sbonwick kthread_t *scl_writer; 75e14bb325SJeff Bonwick int scl_write_wanted; 76e05725b1Sbonwick kcondvar_t scl_cv; 77e05725b1Sbonwick refcount_t scl_count; 78e05725b1Sbonwick } spa_config_lock_t; 79e05725b1Sbonwick 80c5904d13Seschrock typedef struct spa_config_dirent { 81c5904d13Seschrock list_node_t scd_link; 82c5904d13Seschrock char *scd_path; 83c5904d13Seschrock } spa_config_dirent_t; 84c5904d13Seschrock 85ec94d322SAdam Leventhal typedef enum zio_taskq_type { 86e14bb325SJeff Bonwick ZIO_TASKQ_ISSUE = 0, 8780eb36f2SGeorge Wilson ZIO_TASKQ_ISSUE_HIGH, 88e14bb325SJeff Bonwick ZIO_TASKQ_INTERRUPT, 8980eb36f2SGeorge Wilson ZIO_TASKQ_INTERRUPT_HIGH, 90e14bb325SJeff Bonwick ZIO_TASKQ_TYPES 91ec94d322SAdam Leventhal } zio_taskq_type_t; 92e14bb325SJeff Bonwick 9335a5a358SJonathan Adams /* 94ec94d322SAdam Leventhal * State machine for the zpool-poolname process. The states transitions 9535a5a358SJonathan Adams * are done as follows: 9635a5a358SJonathan Adams * 9735a5a358SJonathan Adams * From To Routine 9835a5a358SJonathan Adams * PROC_NONE -> PROC_CREATED spa_activate() 9935a5a358SJonathan Adams * PROC_CREATED -> PROC_ACTIVE spa_thread() 10035a5a358SJonathan Adams * PROC_ACTIVE -> PROC_DEACTIVATE spa_deactivate() 10135a5a358SJonathan Adams * PROC_DEACTIVATE -> PROC_GONE spa_thread() 10235a5a358SJonathan Adams * PROC_GONE -> PROC_NONE spa_deactivate() 10335a5a358SJonathan Adams */ 10435a5a358SJonathan Adams typedef enum spa_proc_state { 10535a5a358SJonathan Adams SPA_PROC_NONE, /* spa_proc = &p0, no process created */ 10635a5a358SJonathan Adams SPA_PROC_CREATED, /* spa_activate() has proc, is waiting */ 10735a5a358SJonathan Adams SPA_PROC_ACTIVE, /* taskqs created, spa_proc set */ 10835a5a358SJonathan Adams SPA_PROC_DEACTIVATE, /* spa_deactivate() requests process exit */ 10935a5a358SJonathan Adams SPA_PROC_GONE /* spa_thread() is exiting, spa_proc = &p0 */ 11035a5a358SJonathan Adams } spa_proc_state_t; 11135a5a358SJonathan Adams 112ec94d322SAdam Leventhal typedef struct spa_taskqs { 113ec94d322SAdam Leventhal uint_t stqs_count; 114ec94d322SAdam Leventhal taskq_t **stqs_taskq; 115ec94d322SAdam Leventhal } spa_taskqs_t; 116ec94d322SAdam Leventhal 117fa9e4066Sahrens struct spa { 118fa9e4066Sahrens /* 119fa9e4066Sahrens * Fields protected by spa_namespace_lock. 120fa9e4066Sahrens */ 121e14bb325SJeff Bonwick char spa_name[MAXNAMELEN]; /* pool name */ 1228704186eSDan McDonald char *spa_comment; /* comment */ 1230373e76bSbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 1240373e76bSbonwick nvlist_t *spa_config; /* last synced config */ 1250373e76bSbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 1261195e687SMark J Musante nvlist_t *spa_config_splitting; /* config for splitting */ 1274b964adaSGeorge Wilson nvlist_t *spa_load_info; /* info and errors from load */ 128fa9e4066Sahrens uint64_t spa_config_txg; /* txg of last config change */ 129fa9e4066Sahrens int spa_sync_pass; /* iterate-to-convergence */ 13088b7b0f2SMatthew Ahrens pool_state_t spa_state; /* pool state */ 131ea8dc4b6Seschrock int spa_inject_ref; /* injection references */ 132ea8dc4b6Seschrock uint8_t spa_sync_on; /* sync threads are running */ 133ea8dc4b6Seschrock spa_load_state_t spa_load_state; /* current load operation */ 1344b964adaSGeorge Wilson uint64_t spa_import_flags; /* import specific flags */ 135ec94d322SAdam Leventhal spa_taskqs_t spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES]; 136fa9e4066Sahrens dsl_pool_t *spa_dsl_pool; 137ad135b5dSChristopher Siden boolean_t spa_is_initializing; /* true while opening pool */ 138fa9e4066Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 1398654d025Sperrin metaslab_class_t *spa_log_class; /* intent log data class */ 140fa9e4066Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 1410373e76bSbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 142fa9e4066Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 143468c413aSTim Haley uint64_t spa_load_max_txg; /* best initial ub_txg */ 144b24ab676SJeff Bonwick uint64_t spa_claim_max_txg; /* highest claimed birth txg */ 14511027bc7STim Haley timespec_t spa_loaded_ts; /* 1st successful open time */ 146fa9e4066Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 147fa9e4066Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 148fa9e4066Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 149e9103aaeSGarrett D'Amore uint64_t spa_config_guid; /* config pool guid */ 150e9103aaeSGarrett D'Amore uint64_t spa_load_guid; /* spa_load initialized guid */ 151dfbb9432SGeorge Wilson uint64_t spa_last_synced_guid; /* last synced guid */ 152e14bb325SJeff Bonwick list_t spa_config_dirty_list; /* vdevs with dirty config */ 153e14bb325SJeff Bonwick list_t spa_state_dirty_list; /* vdevs with dirty state */ 154fa94a07fSbrendan spa_aux_vdev_t spa_spares; /* hot spares */ 155fa94a07fSbrendan spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ 156ad135b5dSChristopher Siden nvlist_t *spa_label_features; /* Features for reading MOS */ 157fa9e4066Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 1588f18d1faSGeorge Wilson uint64_t spa_config_generation; /* config generation number */ 159fa9e4066Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 160cde58dbcSMatthew Ahrens bpobj_t spa_deferred_bpobj; /* deferred-free bplist */ 161b24ab676SJeff Bonwick bplist_t spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */ 162fa9e4066Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 163fa9e4066Sahrens uberblock_t spa_uberblock; /* current uberblock */ 164468c413aSTim Haley boolean_t spa_extreme_rewind; /* rewind past deferred frees */ 16544ecc532SGeorge Wilson uint64_t spa_last_io; /* lbolt of last non-scan I/O */ 166fa9e4066Sahrens kmutex_t spa_scrub_lock; /* resilver/scrub lock */ 167fa9e4066Sahrens uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ 168fa9e4066Sahrens kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ 169fa9e4066Sahrens uint8_t spa_scrub_active; /* active or suspended? */ 170fa9e4066Sahrens uint8_t spa_scrub_type; /* type of scrub we're doing */ 1710373e76bSbonwick uint8_t spa_scrub_finished; /* indicator to rotate logs */ 172088f3894Sahrens uint8_t spa_scrub_started; /* started since last boot */ 173088f3894Sahrens uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */ 1743f9d6ad7SLin Ling uint64_t spa_scan_pass_start; /* start time per pass/reboot */ 1753f9d6ad7SLin Ling uint64_t spa_scan_pass_exam; /* examined bytes per pass */ 176ea8dc4b6Seschrock kmutex_t spa_async_lock; /* protect async state */ 177ea8dc4b6Seschrock kthread_t *spa_async_thread; /* thread doing async task */ 178ea8dc4b6Seschrock int spa_async_suspended; /* async tasks suspended */ 179ea8dc4b6Seschrock kcondvar_t spa_async_cv; /* wait for thread_exit() */ 180ea8dc4b6Seschrock uint16_t spa_async_tasks; /* async task mask */ 181fa9e4066Sahrens char *spa_root; /* alternate root directory */ 182ea8dc4b6Seschrock uint64_t spa_ena; /* spa-wide ereport ENA */ 183468c413aSTim Haley int spa_last_open_failed; /* error if last open failed */ 184468c413aSTim Haley uint64_t spa_last_ubsync_txg; /* "best" uberblock txg */ 185468c413aSTim Haley uint64_t spa_last_ubsync_txg_ts; /* timestamp from that ub */ 186468c413aSTim Haley uint64_t spa_load_txg; /* ub txg that loaded */ 187468c413aSTim Haley uint64_t spa_load_txg_ts; /* timestamp from that ub */ 188468c413aSTim Haley uint64_t spa_load_meta_errors; /* verify metadata err count */ 189468c413aSTim Haley uint64_t spa_load_data_errors; /* verify data err count */ 190468c413aSTim Haley uint64_t spa_verify_min_txg; /* start txg of verify scrub */ 191ea8dc4b6Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 192ea8dc4b6Seschrock uint64_t spa_errlog_last; /* last error log object */ 193ea8dc4b6Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 194ea8dc4b6Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 195ea8dc4b6Seschrock avl_tree_t spa_errlist_last; /* last error list */ 196ea8dc4b6Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 19799653d4eSeschrock uint64_t spa_deflate; /* should we deflate? */ 19806eeb2adSek uint64_t spa_history; /* history object */ 19906eeb2adSek kmutex_t spa_history_lock; /* history lock */ 20039c23413Seschrock vdev_t *spa_pending_vdev; /* pending vdev additions */ 201b1b8ab34Slling kmutex_t spa_props_lock; /* property lock */ 202b1b8ab34Slling uint64_t spa_pool_props_object; /* object for properties */ 203b1b8ab34Slling uint64_t spa_bootfs; /* default boot filesystem */ 204e14bb325SJeff Bonwick uint64_t spa_failmode; /* failure mode for the pool */ 205e14bb325SJeff Bonwick uint64_t spa_delegation; /* delegation on/off */ 206c5904d13Seschrock list_t spa_config_list; /* previous cache file(s) */ 207*6f834bc1SMatthew Ahrens /* per-CPU array of root of async I/O: */ 208*6f834bc1SMatthew Ahrens zio_t **spa_async_zio_root; 209e14bb325SJeff Bonwick zio_t *spa_suspend_zio_root; /* root of all suspended I/O */ 210e14bb325SJeff Bonwick kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ 211e14bb325SJeff Bonwick kcondvar_t spa_suspend_cv; /* notification of resume */ 212e14bb325SJeff Bonwick uint8_t spa_suspended; /* pool is suspended */ 213b24ab676SJeff Bonwick uint8_t spa_claiming; /* pool is doing zil_claim() */ 21409c9d376SGeorge Wilson boolean_t spa_debug; /* debug enabled? */ 215bf82a41bSeschrock boolean_t spa_is_root; /* pool is root */ 216088f3894Sahrens int spa_minref; /* num refs when first opened */ 2178ad4d6ddSJeff Bonwick int spa_mode; /* FREAD | FWRITE */ 218b87f3af3Sperrin spa_log_state_t spa_log_state; /* log state */ 219573ca77eSGeorge Wilson uint64_t spa_autoexpand; /* lun expansion on/off */ 220b24ab676SJeff Bonwick ddt_t *spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */ 221b24ab676SJeff Bonwick uint64_t spa_ddt_stat_object; /* DDT statistics */ 222b24ab676SJeff Bonwick uint64_t spa_dedup_ditto; /* dedup ditto threshold */ 223b24ab676SJeff Bonwick uint64_t spa_dedup_checksum; /* default dedup checksum */ 224485bbbf5SGeorge Wilson uint64_t spa_dspace; /* dspace in normal class */ 225a1521560SJeff Bonwick kmutex_t spa_vdev_top_lock; /* dueling offline/remove */ 22635a5a358SJonathan Adams kmutex_t spa_proc_lock; /* protects spa_proc* */ 22735a5a358SJonathan Adams kcondvar_t spa_proc_cv; /* spa_proc_state transitions */ 22835a5a358SJonathan Adams spa_proc_state_t spa_proc_state; /* see definition */ 22935a5a358SJonathan Adams struct proc *spa_proc; /* "zpool-poolname" process */ 23035a5a358SJonathan Adams uint64_t spa_did; /* if procp != p0, did of t1 */ 231b693757aSEric Schrock boolean_t spa_autoreplace; /* autoreplace set in open */ 2328f18d1faSGeorge Wilson int spa_vdev_locks; /* locks grabbed */ 2333f9d6ad7SLin Ling uint64_t spa_creation_version; /* version at pool creation */ 234ad135b5dSChristopher Siden uint64_t spa_prev_software_version; /* See ub_software_version */ 235ad135b5dSChristopher Siden uint64_t spa_feat_for_write_obj; /* required to write to pool */ 236ad135b5dSChristopher Siden uint64_t spa_feat_for_read_obj; /* required to read from pool */ 237ad135b5dSChristopher Siden uint64_t spa_feat_desc_obj; /* Feature descriptions */ 23843466aaeSMax Grossman uint64_t spa_feat_enabled_txg_obj; /* Feature enabled txg */ 23943466aaeSMax Grossman /* cache feature refcounts */ 24043466aaeSMax Grossman uint64_t spa_feat_refcount_cache[SPA_FEATURES]; 241283b8460SGeorge.Wilson cyclic_id_t spa_deadman_cycid; /* cyclic id */ 242283b8460SGeorge.Wilson uint64_t spa_deadman_calls; /* number of deadman calls */ 24369962b56SMatthew Ahrens hrtime_t spa_sync_starttime; /* starting time fo spa_sync */ 244283b8460SGeorge.Wilson uint64_t spa_deadman_synctime; /* deadman expiration timer */ 24569962b56SMatthew Ahrens 24669962b56SMatthew Ahrens /* 24769962b56SMatthew Ahrens * spa_iokstat_lock protects spa_iokstat and 24869962b56SMatthew Ahrens * spa_queue_stats[]. 24969962b56SMatthew Ahrens */ 25069962b56SMatthew Ahrens kmutex_t spa_iokstat_lock; 251c3a66015SMatthew Ahrens struct kstat *spa_iokstat; /* kstat of io to this pool */ 25269962b56SMatthew Ahrens struct { 25369962b56SMatthew Ahrens int spa_active; 25469962b56SMatthew Ahrens int spa_queued; 25569962b56SMatthew Ahrens } spa_queue_stats[ZIO_PRIORITY_NUM_QUEUEABLE]; 25669962b56SMatthew Ahrens 2573cb69f73SWill Andrews hrtime_t spa_ccw_fail_time; /* Conf cache write fail time */ 25869962b56SMatthew Ahrens 259fa9e4066Sahrens /* 260f7170741SWill Andrews * spa_refcount & spa_config_lock must be the last elements 26191ebeef5Sahrens * because refcount_t changes size based on compilation options. 26291ebeef5Sahrens * In order for the MDB module to function correctly, the other 26391ebeef5Sahrens * fields must remain in the same location. 264fa9e4066Sahrens */ 265e14bb325SJeff Bonwick spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */ 266fa9e4066Sahrens refcount_t spa_refcount; /* number of opens */ 267fa9e4066Sahrens }; 268fa9e4066Sahrens 269c5904d13Seschrock extern const char *spa_config_path; 270fa9e4066Sahrens 271ec94d322SAdam Leventhal extern void spa_taskq_dispatch_ent(spa_t *spa, zio_type_t t, zio_taskq_type_t q, 272ec94d322SAdam Leventhal task_func_t *func, void *arg, uint_t flags, taskq_ent_t *ent); 273ec94d322SAdam Leventhal 274fa9e4066Sahrens #ifdef __cplusplus 275fa9e4066Sahrens } 276fa9e4066Sahrens #endif 277fa9e4066Sahrens 278fa9e4066Sahrens #endif /* _SYS_SPA_IMPL_H */ 279