1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * GRUB -- GRand Unified Bootloader 3*4882a593Smuzhiyun * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun /* 8*4882a593Smuzhiyun * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #ifndef GRUB_ZFS_HEADER 12*4882a593Smuzhiyun #define GRUB_ZFS_HEADER 1 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * On-disk version number. 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun #define SPA_VERSION 28ULL 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* 21*4882a593Smuzhiyun * The following are configuration names used in the nvlist describing a pool's 22*4882a593Smuzhiyun * configuration. 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun #define ZPOOL_CONFIG_VERSION "version" 25*4882a593Smuzhiyun #define ZPOOL_CONFIG_POOL_NAME "name" 26*4882a593Smuzhiyun #define ZPOOL_CONFIG_POOL_STATE "state" 27*4882a593Smuzhiyun #define ZPOOL_CONFIG_POOL_TXG "txg" 28*4882a593Smuzhiyun #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 29*4882a593Smuzhiyun #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 30*4882a593Smuzhiyun #define ZPOOL_CONFIG_TOP_GUID "top_guid" 31*4882a593Smuzhiyun #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 32*4882a593Smuzhiyun #define ZPOOL_CONFIG_TYPE "type" 33*4882a593Smuzhiyun #define ZPOOL_CONFIG_CHILDREN "children" 34*4882a593Smuzhiyun #define ZPOOL_CONFIG_ID "id" 35*4882a593Smuzhiyun #define ZPOOL_CONFIG_GUID "guid" 36*4882a593Smuzhiyun #define ZPOOL_CONFIG_PATH "path" 37*4882a593Smuzhiyun #define ZPOOL_CONFIG_DEVID "devid" 38*4882a593Smuzhiyun #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 39*4882a593Smuzhiyun #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 40*4882a593Smuzhiyun #define ZPOOL_CONFIG_ASHIFT "ashift" 41*4882a593Smuzhiyun #define ZPOOL_CONFIG_ASIZE "asize" 42*4882a593Smuzhiyun #define ZPOOL_CONFIG_DTL "DTL" 43*4882a593Smuzhiyun #define ZPOOL_CONFIG_STATS "stats" 44*4882a593Smuzhiyun #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 45*4882a593Smuzhiyun #define ZPOOL_CONFIG_ERRCOUNT "error_count" 46*4882a593Smuzhiyun #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 47*4882a593Smuzhiyun #define ZPOOL_CONFIG_SPARES "spares" 48*4882a593Smuzhiyun #define ZPOOL_CONFIG_IS_SPARE "is_spare" 49*4882a593Smuzhiyun #define ZPOOL_CONFIG_NPARITY "nparity" 50*4882a593Smuzhiyun #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 51*4882a593Smuzhiyun #define ZPOOL_CONFIG_L2CACHE "l2cache" 52*4882a593Smuzhiyun #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 53*4882a593Smuzhiyun #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 54*4882a593Smuzhiyun #define ZPOOL_CONFIG_IS_HOLE "is_hole" 55*4882a593Smuzhiyun #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 56*4882a593Smuzhiyun #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 57*4882a593Smuzhiyun #define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 58*4882a593Smuzhiyun /* 59*4882a593Smuzhiyun * The persistent vdev state is stored as separate values rather than a single 60*4882a593Smuzhiyun * 'vdev_state' entry. This is because a device can be in multiple states, such 61*4882a593Smuzhiyun * as offline and degraded. 62*4882a593Smuzhiyun */ 63*4882a593Smuzhiyun #define ZPOOL_CONFIG_OFFLINE "offline" 64*4882a593Smuzhiyun #define ZPOOL_CONFIG_FAULTED "faulted" 65*4882a593Smuzhiyun #define ZPOOL_CONFIG_DEGRADED "degraded" 66*4882a593Smuzhiyun #define ZPOOL_CONFIG_REMOVED "removed" 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun #define VDEV_TYPE_ROOT "root" 69*4882a593Smuzhiyun #define VDEV_TYPE_MIRROR "mirror" 70*4882a593Smuzhiyun #define VDEV_TYPE_REPLACING "replacing" 71*4882a593Smuzhiyun #define VDEV_TYPE_RAIDZ "raidz" 72*4882a593Smuzhiyun #define VDEV_TYPE_DISK "disk" 73*4882a593Smuzhiyun #define VDEV_TYPE_FILE "file" 74*4882a593Smuzhiyun #define VDEV_TYPE_MISSING "missing" 75*4882a593Smuzhiyun #define VDEV_TYPE_HOLE "hole" 76*4882a593Smuzhiyun #define VDEV_TYPE_SPARE "spare" 77*4882a593Smuzhiyun #define VDEV_TYPE_L2CACHE "l2cache" 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun /* 80*4882a593Smuzhiyun * pool state. The following states are written to disk as part of the normal 81*4882a593Smuzhiyun * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 82*4882a593Smuzhiyun * states are software abstractions used at various levels to communicate pool 83*4882a593Smuzhiyun * state. 84*4882a593Smuzhiyun */ 85*4882a593Smuzhiyun typedef enum pool_state { 86*4882a593Smuzhiyun POOL_STATE_ACTIVE = 0, /* In active use */ 87*4882a593Smuzhiyun POOL_STATE_EXPORTED, /* Explicitly exported */ 88*4882a593Smuzhiyun POOL_STATE_DESTROYED, /* Explicitly destroyed */ 89*4882a593Smuzhiyun POOL_STATE_SPARE, /* Reserved for hot spare use */ 90*4882a593Smuzhiyun POOL_STATE_L2CACHE, /* Level 2 ARC device */ 91*4882a593Smuzhiyun POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 92*4882a593Smuzhiyun POOL_STATE_UNAVAIL, /* Internal libzfs state */ 93*4882a593Smuzhiyun POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 94*4882a593Smuzhiyun } pool_state_t; 95*4882a593Smuzhiyun 96*4882a593Smuzhiyun struct zfs_data; 97*4882a593Smuzhiyun 98*4882a593Smuzhiyun int zfs_fetch_nvlist(device_t dev, char **nvlist); 99*4882a593Smuzhiyun int zfs_getmdnobj(device_t dev, const char *fsfilename, 100*4882a593Smuzhiyun uint64_t *mdnobj); 101*4882a593Smuzhiyun 102*4882a593Smuzhiyun char *zfs_nvlist_lookup_string(char *nvlist, char *name); 103*4882a593Smuzhiyun char *zfs_nvlist_lookup_nvlist(char *nvlist, char *name); 104*4882a593Smuzhiyun int zfs_nvlist_lookup_uint64(char *nvlist, char *name, 105*4882a593Smuzhiyun uint64_t *out); 106*4882a593Smuzhiyun char *zfs_nvlist_lookup_nvlist_array(char *nvlist, char *name, 107*4882a593Smuzhiyun size_t index); 108*4882a593Smuzhiyun int zfs_nvlist_lookup_nvlist_array_get_nelm(char *nvlist, char *name); 109*4882a593Smuzhiyun 110*4882a593Smuzhiyun #endif /* ! GRUB_ZFS_HEADER */ 111