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 /* 22c5904d13Seschrock * Copyright 2008 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 #pragma ident "%Z%%M% %I% %E% SMI" 30fa9e4066Sahrens 31fa9e4066Sahrens #include <sys/spa.h> 32fa9e4066Sahrens #include <sys/vdev.h> 33fa9e4066Sahrens #include <sys/metaslab.h> 34fa9e4066Sahrens #include <sys/dmu.h> 35fa9e4066Sahrens #include <sys/dsl_pool.h> 36fa9e4066Sahrens #include <sys/uberblock_impl.h> 37fa9e4066Sahrens #include <sys/zfs_context.h> 38fa9e4066Sahrens #include <sys/avl.h> 39fa9e4066Sahrens #include <sys/refcount.h> 40fa9e4066Sahrens #include <sys/bplist.h> 41fa9e4066Sahrens 42fa9e4066Sahrens #ifdef __cplusplus 43fa9e4066Sahrens extern "C" { 44fa9e4066Sahrens #endif 45fa9e4066Sahrens 46ea8dc4b6Seschrock typedef struct spa_error_entry { 47ea8dc4b6Seschrock zbookmark_t se_bookmark; 48ea8dc4b6Seschrock char *se_name; 49ea8dc4b6Seschrock avl_node_t se_avl; 50ea8dc4b6Seschrock } spa_error_entry_t; 51ea8dc4b6Seschrock 5206eeb2adSek typedef struct spa_history_phys { 5306eeb2adSek uint64_t sh_pool_create_len; /* ending offset of zpool create */ 5406eeb2adSek uint64_t sh_phys_max_off; /* physical EOF */ 5506eeb2adSek uint64_t sh_bof; /* logical BOF */ 5606eeb2adSek uint64_t sh_eof; /* logical EOF */ 5706eeb2adSek uint64_t sh_records_lost; /* num of records overwritten */ 5806eeb2adSek } spa_history_phys_t; 5906eeb2adSek 60fa94a07fSbrendan struct spa_aux_vdev { 61fa94a07fSbrendan uint64_t sav_object; /* MOS object for device list */ 62fa94a07fSbrendan nvlist_t *sav_config; /* cached device config */ 63fa94a07fSbrendan vdev_t **sav_vdevs; /* devices */ 64fa94a07fSbrendan int sav_count; /* number devices */ 65fa94a07fSbrendan boolean_t sav_sync; /* sync the device list */ 66fa94a07fSbrendan nvlist_t **sav_pending; /* pending device additions */ 67fa94a07fSbrendan uint_t sav_npending; /* # pending devices */ 68fa94a07fSbrendan }; 69fa94a07fSbrendan 70e05725b1Sbonwick typedef struct spa_config_lock { 71e05725b1Sbonwick kmutex_t scl_lock; 72e05725b1Sbonwick kthread_t *scl_writer; 73e05725b1Sbonwick uint16_t scl_write_wanted; 74e05725b1Sbonwick kcondvar_t scl_cv; 75e05725b1Sbonwick refcount_t scl_count; 76e05725b1Sbonwick } spa_config_lock_t; 77e05725b1Sbonwick 78c5904d13Seschrock typedef struct spa_config_dirent { 79c5904d13Seschrock list_node_t scd_link; 80c5904d13Seschrock char *scd_path; 81c5904d13Seschrock } spa_config_dirent_t; 82c5904d13Seschrock 83fa9e4066Sahrens struct spa { 84fa9e4066Sahrens /* 85fa9e4066Sahrens * Fields protected by spa_namespace_lock. 86fa9e4066Sahrens */ 870373e76bSbonwick char *spa_name; /* pool name */ 880373e76bSbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 890373e76bSbonwick nvlist_t *spa_config; /* last synced config */ 900373e76bSbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 91fa9e4066Sahrens uint64_t spa_config_txg; /* txg of last config change */ 92fa9e4066Sahrens kmutex_t spa_config_cache_lock; /* for spa_config RW_READER */ 93fa9e4066Sahrens int spa_sync_pass; /* iterate-to-convergence */ 94fa9e4066Sahrens int spa_state; /* pool state */ 95ea8dc4b6Seschrock int spa_inject_ref; /* injection references */ 96fa9e4066Sahrens uint8_t spa_traverse_wanted; /* traverse lock wanted */ 97ea8dc4b6Seschrock uint8_t spa_sync_on; /* sync threads are running */ 98ea8dc4b6Seschrock spa_load_state_t spa_load_state; /* current load operation */ 99fa9e4066Sahrens taskq_t *spa_zio_issue_taskq[ZIO_TYPES]; 100fa9e4066Sahrens taskq_t *spa_zio_intr_taskq[ZIO_TYPES]; 101fa9e4066Sahrens dsl_pool_t *spa_dsl_pool; 102fa9e4066Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 1038654d025Sperrin metaslab_class_t *spa_log_class; /* intent log data class */ 104fa9e4066Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 1050373e76bSbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 106fa9e4066Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 107fa9e4066Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 108fa9e4066Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 109fa9e4066Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 110b5989ec7Seschrock uint64_t spa_load_guid; /* initial guid for spa_load */ 111fa9e4066Sahrens list_t spa_dirty_list; /* vdevs with dirty labels */ 112fa94a07fSbrendan spa_aux_vdev_t spa_spares; /* hot spares */ 113fa94a07fSbrendan spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ 114fa9e4066Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 115fa9e4066Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 116fa9e4066Sahrens uint64_t spa_sync_bplist_obj; /* object for deferred frees */ 117fa9e4066Sahrens bplist_t spa_sync_bplist; /* deferred-free bplist */ 118fa9e4066Sahrens krwlock_t spa_traverse_lock; /* traverse vs. spa_sync() */ 119fa9e4066Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 120fa9e4066Sahrens uberblock_t spa_uberblock; /* current uberblock */ 121fa9e4066Sahrens kmutex_t spa_scrub_lock; /* resilver/scrub lock */ 122fa9e4066Sahrens kthread_t *spa_scrub_thread; /* scrub/resilver thread */ 123fa9e4066Sahrens traverse_handle_t *spa_scrub_th; /* scrub traverse handle */ 124fa9e4066Sahrens uint64_t spa_scrub_restart_txg; /* need to restart */ 125ea8dc4b6Seschrock uint64_t spa_scrub_mintxg; /* min txg we'll scrub */ 126fa9e4066Sahrens uint64_t spa_scrub_maxtxg; /* max txg we'll scrub */ 127fa9e4066Sahrens uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ 12805b2b3b8Smishra uint64_t spa_scrub_maxinflight; /* max in-flight scrub I/Os */ 129fa9e4066Sahrens uint64_t spa_scrub_errors; /* scrub I/O error count */ 130ea8dc4b6Seschrock int spa_scrub_suspended; /* tell scrubber to suspend */ 131fa9e4066Sahrens kcondvar_t spa_scrub_cv; /* scrub thread state change */ 132fa9e4066Sahrens kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ 133fa9e4066Sahrens uint8_t spa_scrub_stop; /* tell scrubber to stop */ 134fa9e4066Sahrens uint8_t spa_scrub_active; /* active or suspended? */ 135fa9e4066Sahrens uint8_t spa_scrub_type; /* type of scrub we're doing */ 1360373e76bSbonwick uint8_t spa_scrub_finished; /* indicator to rotate logs */ 137ea8dc4b6Seschrock kmutex_t spa_async_lock; /* protect async state */ 138ea8dc4b6Seschrock kthread_t *spa_async_thread; /* thread doing async task */ 139ea8dc4b6Seschrock int spa_async_suspended; /* async tasks suspended */ 140ea8dc4b6Seschrock kcondvar_t spa_async_cv; /* wait for thread_exit() */ 141ea8dc4b6Seschrock uint16_t spa_async_tasks; /* async task mask */ 142fa9e4066Sahrens char *spa_root; /* alternate root directory */ 143fa9e4066Sahrens kmutex_t spa_uberblock_lock; /* vdev_uberblock_load_done() */ 144ea8dc4b6Seschrock uint64_t spa_ena; /* spa-wide ereport ENA */ 145ea8dc4b6Seschrock boolean_t spa_last_open_failed; /* true if last open faled */ 146ea8dc4b6Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 147ea8dc4b6Seschrock uint64_t spa_errlog_last; /* last error log object */ 148ea8dc4b6Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 149ea8dc4b6Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 150ea8dc4b6Seschrock avl_tree_t spa_errlist_last; /* last error list */ 151ea8dc4b6Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 15299653d4eSeschrock uint64_t spa_deflate; /* should we deflate? */ 15306eeb2adSek uint64_t spa_history; /* history object */ 15406eeb2adSek kmutex_t spa_history_lock; /* history lock */ 15539c23413Seschrock vdev_t *spa_pending_vdev; /* pending vdev additions */ 156b1b8ab34Slling kmutex_t spa_props_lock; /* property lock */ 157b1b8ab34Slling uint64_t spa_pool_props_object; /* object for properties */ 158b1b8ab34Slling uint64_t spa_bootfs; /* default boot filesystem */ 159ecd6cf80Smarks boolean_t spa_delegation; /* delegation on/off */ 160c5904d13Seschrock list_t spa_config_list; /* previous cache file(s) */ 1610a4e9518Sgw list_t spa_zio_list; /* zio error list */ 1620a4e9518Sgw kcondvar_t spa_zio_cv; /* resume I/O pipeline */ 1630a4e9518Sgw kmutex_t spa_zio_lock; /* zio error lock */ 1640a4e9518Sgw uint8_t spa_failmode; /* failure mode for the pool */ 165c5904d13Seschrock boolean_t spa_import_faulted; /* allow faulted vdevs */ 166bf82a41bSeschrock boolean_t spa_is_root; /* pool is root */ 167fa9e4066Sahrens /* 16891ebeef5Sahrens * spa_refcnt & spa_config_lock must be the last elements 16991ebeef5Sahrens * because refcount_t changes size based on compilation options. 17091ebeef5Sahrens * In order for the MDB module to function correctly, the other 17191ebeef5Sahrens * fields must remain in the same location. 172fa9e4066Sahrens */ 173e05725b1Sbonwick spa_config_lock_t spa_config_lock; /* configuration changes */ 174fa9e4066Sahrens refcount_t spa_refcount; /* number of opens */ 175fa9e4066Sahrens }; 176fa9e4066Sahrens 177c5904d13Seschrock extern const char *spa_config_path; 178fa9e4066Sahrens 179*15e6edf1Sgw #define BOOTFS_COMPRESS_VALID(compress) \ 180*15e6edf1Sgw ((compress) == ZIO_COMPRESS_LZJB || \ 181*15e6edf1Sgw ((compress) == ZIO_COMPRESS_ON && \ 182*15e6edf1Sgw ZIO_COMPRESS_ON_VALUE == ZIO_COMPRESS_LZJB) || \ 183*15e6edf1Sgw (compress) == ZIO_COMPRESS_OFF) 184*15e6edf1Sgw 185fa9e4066Sahrens #ifdef __cplusplus 186fa9e4066Sahrens } 187fa9e4066Sahrens #endif 188fa9e4066Sahrens 189fa9e4066Sahrens #endif /* _SYS_SPA_IMPL_H */ 190