1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2018, Intel Corporation. 23 * Copyright (c) 2020 by Lawrence Livermore National Security, LLC. 24 */ 25 26 #ifndef _SYS_VDEV_REBUILD_H 27 #define _SYS_VDEV_REBUILD_H 28 29 #include <sys/spa.h> 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /* 36 * Number of entries in the physical vdev_rebuild_phys structure. This 37 * state is stored per top-level as VDEV_ZAP_TOP_VDEV_REBUILD_PHYS. 38 */ 39 #define REBUILD_PHYS_ENTRIES 12 40 41 /* 42 * On-disk rebuild configuration and state. When adding new fields they 43 * must be added to the end of the structure. 44 */ 45 typedef struct vdev_rebuild_phys { 46 uint64_t vrp_rebuild_state; /* vdev_rebuild_state_t */ 47 uint64_t vrp_last_offset; /* last rebuilt offset */ 48 uint64_t vrp_min_txg; /* minimum missing txg */ 49 uint64_t vrp_max_txg; /* maximum missing txg */ 50 uint64_t vrp_start_time; /* start time */ 51 uint64_t vrp_end_time; /* end time */ 52 uint64_t vrp_scan_time_ms; /* total run time in ms */ 53 uint64_t vrp_bytes_scanned; /* alloc bytes scanned */ 54 uint64_t vrp_bytes_issued; /* read bytes rebuilt */ 55 uint64_t vrp_bytes_rebuilt; /* rebuilt bytes */ 56 uint64_t vrp_bytes_est; /* total bytes to scan */ 57 uint64_t vrp_errors; /* errors during rebuild */ 58 } vdev_rebuild_phys_t; 59 60 /* 61 * The vdev_rebuild_t describes the current state and how a top-level vdev 62 * should be rebuilt. The core elements are the top-vdev, the metaslab being 63 * rebuilt, range tree containing the allocated extents and the on-disk state. 64 */ 65 typedef struct vdev_rebuild { 66 vdev_t *vr_top_vdev; /* top-level vdev to rebuild */ 67 metaslab_t *vr_scan_msp; /* scanning disabled metaslab */ 68 range_tree_t *vr_scan_tree; /* scan ranges (in metaslab) */ 69 kmutex_t vr_io_lock; /* inflight IO lock */ 70 kcondvar_t vr_io_cv; /* inflight IO cv */ 71 72 /* In-core state and progress */ 73 uint64_t vr_scan_offset[TXG_SIZE]; 74 uint64_t vr_prev_scan_time_ms; /* any previous scan time */ 75 uint64_t vr_bytes_inflight_max; /* maximum bytes inflight */ 76 uint64_t vr_bytes_inflight; /* current bytes inflight */ 77 78 /* Per-rebuild pass statistics for calculating bandwidth */ 79 uint64_t vr_pass_start_time; 80 uint64_t vr_pass_bytes_scanned; 81 uint64_t vr_pass_bytes_issued; 82 83 /* On-disk state updated by vdev_rebuild_zap_update_sync() */ 84 vdev_rebuild_phys_t vr_rebuild_phys; 85 } vdev_rebuild_t; 86 87 boolean_t vdev_rebuild_active(vdev_t *); 88 89 int vdev_rebuild_load(vdev_t *); 90 void vdev_rebuild(vdev_t *); 91 void vdev_rebuild_stop_wait(vdev_t *); 92 void vdev_rebuild_stop_all(spa_t *); 93 void vdev_rebuild_restart(spa_t *); 94 void vdev_rebuild_clear_sync(void *, dmu_tx_t *); 95 int vdev_rebuild_get_stats(vdev_t *, vdev_rebuild_stat_t *); 96 97 #ifdef __cplusplus 98 } 99 #endif 100 101 #endif /* _SYS_VDEV_REBUILD_H */ 102