1789Sahrens /* 2789Sahrens * CDDL HEADER START 3789Sahrens * 4789Sahrens * The contents of this file are subject to the terms of the 51544Seschrock * Common Development and Distribution License (the "License"). 61544Seschrock * 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 /* 2212296SLin.Ling@Sun.COM * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23789Sahrens */ 24789Sahrens 25789Sahrens #ifndef _SYS_SPA_IMPL_H 26789Sahrens #define _SYS_SPA_IMPL_H 27789Sahrens 28789Sahrens #include <sys/spa.h> 29789Sahrens #include <sys/vdev.h> 30789Sahrens #include <sys/metaslab.h> 31789Sahrens #include <sys/dmu.h> 32789Sahrens #include <sys/dsl_pool.h> 33789Sahrens #include <sys/uberblock_impl.h> 34789Sahrens #include <sys/zfs_context.h> 35789Sahrens #include <sys/avl.h> 36789Sahrens #include <sys/refcount.h> 37789Sahrens #include <sys/bplist.h> 3812470SMatthew.Ahrens@Sun.COM #include <sys/bpobj.h> 39789Sahrens 40789Sahrens #ifdef __cplusplus 41789Sahrens extern "C" { 42789Sahrens #endif 43789Sahrens 441544Seschrock typedef struct spa_error_entry { 451544Seschrock zbookmark_t se_bookmark; 461544Seschrock char *se_name; 471544Seschrock avl_node_t se_avl; 481544Seschrock } spa_error_entry_t; 491544Seschrock 502926Sek110237 typedef struct spa_history_phys { 512926Sek110237 uint64_t sh_pool_create_len; /* ending offset of zpool create */ 522926Sek110237 uint64_t sh_phys_max_off; /* physical EOF */ 532926Sek110237 uint64_t sh_bof; /* logical BOF */ 542926Sek110237 uint64_t sh_eof; /* logical EOF */ 552926Sek110237 uint64_t sh_records_lost; /* num of records overwritten */ 562926Sek110237 } spa_history_phys_t; 572926Sek110237 585450Sbrendan struct spa_aux_vdev { 595450Sbrendan uint64_t sav_object; /* MOS object for device list */ 605450Sbrendan nvlist_t *sav_config; /* cached device config */ 615450Sbrendan vdev_t **sav_vdevs; /* devices */ 625450Sbrendan int sav_count; /* number devices */ 635450Sbrendan boolean_t sav_sync; /* sync the device list */ 645450Sbrendan nvlist_t **sav_pending; /* pending device additions */ 655450Sbrendan uint_t sav_npending; /* # pending devices */ 665450Sbrendan }; 675450Sbrendan 685530Sbonwick typedef struct spa_config_lock { 695530Sbonwick kmutex_t scl_lock; 705530Sbonwick kthread_t *scl_writer; 717754SJeff.Bonwick@Sun.COM int scl_write_wanted; 725530Sbonwick kcondvar_t scl_cv; 735530Sbonwick refcount_t scl_count; 745530Sbonwick } spa_config_lock_t; 755530Sbonwick 766643Seschrock typedef struct spa_config_dirent { 776643Seschrock list_node_t scd_link; 786643Seschrock char *scd_path; 796643Seschrock } spa_config_dirent_t; 806643Seschrock 817754SJeff.Bonwick@Sun.COM enum zio_taskq_type { 827754SJeff.Bonwick@Sun.COM ZIO_TASKQ_ISSUE = 0, 8311146SGeorge.Wilson@Sun.COM ZIO_TASKQ_ISSUE_HIGH, 847754SJeff.Bonwick@Sun.COM ZIO_TASKQ_INTERRUPT, 8511146SGeorge.Wilson@Sun.COM ZIO_TASKQ_INTERRUPT_HIGH, 867754SJeff.Bonwick@Sun.COM ZIO_TASKQ_TYPES 877754SJeff.Bonwick@Sun.COM }; 887754SJeff.Bonwick@Sun.COM 8911173SJonathan.Adams@Sun.COM /* 9011173SJonathan.Adams@Sun.COM * State machine for the zpool-pooname process. The states transitions 9111173SJonathan.Adams@Sun.COM * are done as follows: 9211173SJonathan.Adams@Sun.COM * 9311173SJonathan.Adams@Sun.COM * From To Routine 9411173SJonathan.Adams@Sun.COM * PROC_NONE -> PROC_CREATED spa_activate() 9511173SJonathan.Adams@Sun.COM * PROC_CREATED -> PROC_ACTIVE spa_thread() 9611173SJonathan.Adams@Sun.COM * PROC_ACTIVE -> PROC_DEACTIVATE spa_deactivate() 9711173SJonathan.Adams@Sun.COM * PROC_DEACTIVATE -> PROC_GONE spa_thread() 9811173SJonathan.Adams@Sun.COM * PROC_GONE -> PROC_NONE spa_deactivate() 9911173SJonathan.Adams@Sun.COM */ 10011173SJonathan.Adams@Sun.COM typedef enum spa_proc_state { 10111173SJonathan.Adams@Sun.COM SPA_PROC_NONE, /* spa_proc = &p0, no process created */ 10211173SJonathan.Adams@Sun.COM SPA_PROC_CREATED, /* spa_activate() has proc, is waiting */ 10311173SJonathan.Adams@Sun.COM SPA_PROC_ACTIVE, /* taskqs created, spa_proc set */ 10411173SJonathan.Adams@Sun.COM SPA_PROC_DEACTIVATE, /* spa_deactivate() requests process exit */ 10511173SJonathan.Adams@Sun.COM SPA_PROC_GONE /* spa_thread() is exiting, spa_proc = &p0 */ 10611173SJonathan.Adams@Sun.COM } spa_proc_state_t; 10711173SJonathan.Adams@Sun.COM 108789Sahrens struct spa { 109789Sahrens /* 110789Sahrens * Fields protected by spa_namespace_lock. 111789Sahrens */ 1127754SJeff.Bonwick@Sun.COM char spa_name[MAXNAMELEN]; /* pool name */ 1131635Sbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 1141635Sbonwick nvlist_t *spa_config; /* last synced config */ 1151635Sbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 11611422SMark.Musante@Sun.COM nvlist_t *spa_config_splitting; /* config for splitting */ 117*12949SGeorge.Wilson@Sun.COM nvlist_t *spa_load_info; /* info and errors from load */ 118789Sahrens uint64_t spa_config_txg; /* txg of last config change */ 119789Sahrens int spa_sync_pass; /* iterate-to-convergence */ 1207837SMatthew.Ahrens@Sun.COM pool_state_t spa_state; /* pool state */ 1211544Seschrock int spa_inject_ref; /* injection references */ 1221544Seschrock uint8_t spa_sync_on; /* sync threads are running */ 1231544Seschrock spa_load_state_t spa_load_state; /* current load operation */ 124*12949SGeorge.Wilson@Sun.COM uint64_t spa_import_flags; /* import specific flags */ 1257754SJeff.Bonwick@Sun.COM taskq_t *spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES]; 126789Sahrens dsl_pool_t *spa_dsl_pool; 127789Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 1284527Sperrin metaslab_class_t *spa_log_class; /* intent log data class */ 129789Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 1301635Sbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 131789Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 13210921STim.Haley@Sun.COM uint64_t spa_load_max_txg; /* best initial ub_txg */ 13310922SJeff.Bonwick@Sun.COM uint64_t spa_claim_max_txg; /* highest claimed birth txg */ 13412817STim.Haley@Sun.COM timespec_t spa_loaded_ts; /* 1st successful open time */ 135789Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 136789Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 137789Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 1382174Seschrock uint64_t spa_load_guid; /* initial guid for spa_load */ 1397754SJeff.Bonwick@Sun.COM list_t spa_config_dirty_list; /* vdevs with dirty config */ 1407754SJeff.Bonwick@Sun.COM list_t spa_state_dirty_list; /* vdevs with dirty state */ 1415450Sbrendan spa_aux_vdev_t spa_spares; /* hot spares */ 1425450Sbrendan spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ 143789Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 14410685SGeorge.Wilson@Sun.COM uint64_t spa_config_generation; /* config generation number */ 145789Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 14612470SMatthew.Ahrens@Sun.COM bpobj_t spa_deferred_bpobj; /* deferred-free bplist */ 14710922SJeff.Bonwick@Sun.COM bplist_t spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */ 148789Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 149789Sahrens uberblock_t spa_uberblock; /* current uberblock */ 15010921STim.Haley@Sun.COM boolean_t spa_extreme_rewind; /* rewind past deferred frees */ 15112586SGeorge.Wilson@Sun.COM uint64_t spa_last_io; /* lbolt of last non-scan I/O */ 152789Sahrens kmutex_t spa_scrub_lock; /* resilver/scrub lock */ 153789Sahrens uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ 154789Sahrens kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ 155789Sahrens uint8_t spa_scrub_active; /* active or suspended? */ 156789Sahrens uint8_t spa_scrub_type; /* type of scrub we're doing */ 1571635Sbonwick uint8_t spa_scrub_finished; /* indicator to rotate logs */ 1587046Sahrens uint8_t spa_scrub_started; /* started since last boot */ 1597046Sahrens uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */ 16012296SLin.Ling@Sun.COM uint64_t spa_scan_pass_start; /* start time per pass/reboot */ 16112296SLin.Ling@Sun.COM uint64_t spa_scan_pass_exam; /* examined bytes per pass */ 1621544Seschrock kmutex_t spa_async_lock; /* protect async state */ 1631544Seschrock kthread_t *spa_async_thread; /* thread doing async task */ 1641544Seschrock int spa_async_suspended; /* async tasks suspended */ 1651544Seschrock kcondvar_t spa_async_cv; /* wait for thread_exit() */ 1661544Seschrock uint16_t spa_async_tasks; /* async task mask */ 167789Sahrens char *spa_root; /* alternate root directory */ 1681544Seschrock uint64_t spa_ena; /* spa-wide ereport ENA */ 16910921STim.Haley@Sun.COM int spa_last_open_failed; /* error if last open failed */ 17010921STim.Haley@Sun.COM uint64_t spa_last_ubsync_txg; /* "best" uberblock txg */ 17110921STim.Haley@Sun.COM uint64_t spa_last_ubsync_txg_ts; /* timestamp from that ub */ 17210921STim.Haley@Sun.COM uint64_t spa_load_txg; /* ub txg that loaded */ 17310921STim.Haley@Sun.COM uint64_t spa_load_txg_ts; /* timestamp from that ub */ 17410921STim.Haley@Sun.COM uint64_t spa_load_meta_errors; /* verify metadata err count */ 17510921STim.Haley@Sun.COM uint64_t spa_load_data_errors; /* verify data err count */ 17610921STim.Haley@Sun.COM uint64_t spa_verify_min_txg; /* start txg of verify scrub */ 1771544Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 1781544Seschrock uint64_t spa_errlog_last; /* last error log object */ 1791544Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 1801544Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 1811544Seschrock avl_tree_t spa_errlist_last; /* last error list */ 1821544Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 1832082Seschrock uint64_t spa_deflate; /* should we deflate? */ 1842926Sek110237 uint64_t spa_history; /* history object */ 1852926Sek110237 kmutex_t spa_history_lock; /* history lock */ 1863377Seschrock vdev_t *spa_pending_vdev; /* pending vdev additions */ 1873912Slling kmutex_t spa_props_lock; /* property lock */ 1883912Slling uint64_t spa_pool_props_object; /* object for properties */ 1893912Slling uint64_t spa_bootfs; /* default boot filesystem */ 1907754SJeff.Bonwick@Sun.COM uint64_t spa_failmode; /* failure mode for the pool */ 1917754SJeff.Bonwick@Sun.COM uint64_t spa_delegation; /* delegation on/off */ 1926643Seschrock list_t spa_config_list; /* previous cache file(s) */ 1939234SGeorge.Wilson@Sun.COM zio_t *spa_async_zio_root; /* root of all async I/O */ 1947754SJeff.Bonwick@Sun.COM zio_t *spa_suspend_zio_root; /* root of all suspended I/O */ 1957754SJeff.Bonwick@Sun.COM kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ 1967754SJeff.Bonwick@Sun.COM kcondvar_t spa_suspend_cv; /* notification of resume */ 1977754SJeff.Bonwick@Sun.COM uint8_t spa_suspended; /* pool is suspended */ 19810922SJeff.Bonwick@Sun.COM uint8_t spa_claiming; /* pool is doing zil_claim() */ 1996673Seschrock boolean_t spa_is_root; /* pool is root */ 2007046Sahrens int spa_minref; /* num refs when first opened */ 2018241SJeff.Bonwick@Sun.COM int spa_mode; /* FREAD | FWRITE */ 2027294Sperrin spa_log_state_t spa_log_state; /* log state */ 2039816SGeorge.Wilson@Sun.COM uint64_t spa_autoexpand; /* lun expansion on/off */ 20410922SJeff.Bonwick@Sun.COM ddt_t *spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */ 20510922SJeff.Bonwick@Sun.COM uint64_t spa_ddt_stat_object; /* DDT statistics */ 20610922SJeff.Bonwick@Sun.COM uint64_t spa_dedup_ditto; /* dedup ditto threshold */ 20710922SJeff.Bonwick@Sun.COM uint64_t spa_dedup_checksum; /* default dedup checksum */ 20810956SGeorge.Wilson@Sun.COM uint64_t spa_dspace; /* dspace in normal class */ 20910974SJeff.Bonwick@Sun.COM kmutex_t spa_vdev_top_lock; /* dueling offline/remove */ 21011173SJonathan.Adams@Sun.COM kmutex_t spa_proc_lock; /* protects spa_proc* */ 21111173SJonathan.Adams@Sun.COM kcondvar_t spa_proc_cv; /* spa_proc_state transitions */ 21211173SJonathan.Adams@Sun.COM spa_proc_state_t spa_proc_state; /* see definition */ 21311173SJonathan.Adams@Sun.COM struct proc *spa_proc; /* "zpool-poolname" process */ 21411173SJonathan.Adams@Sun.COM uint64_t spa_did; /* if procp != p0, did of t1 */ 21510672SEric.Schrock@Sun.COM boolean_t spa_autoreplace; /* autoreplace set in open */ 21610685SGeorge.Wilson@Sun.COM int spa_vdev_locks; /* locks grabbed */ 21712296SLin.Ling@Sun.COM uint64_t spa_creation_version; /* version at pool creation */ 21812296SLin.Ling@Sun.COM uint64_t spa_prev_software_version; 219789Sahrens /* 2204787Sahrens * spa_refcnt & spa_config_lock must be the last elements 2214787Sahrens * because refcount_t changes size based on compilation options. 2224787Sahrens * In order for the MDB module to function correctly, the other 2234787Sahrens * fields must remain in the same location. 224789Sahrens */ 2257754SJeff.Bonwick@Sun.COM spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */ 226789Sahrens refcount_t spa_refcount; /* number of opens */ 227789Sahrens }; 228789Sahrens 2296643Seschrock extern const char *spa_config_path; 230789Sahrens 231789Sahrens #ifdef __cplusplus 232789Sahrens } 233789Sahrens #endif 234789Sahrens 235789Sahrens #endif /* _SYS_SPA_IMPL_H */ 236