1236884Smm/* 2236884Smm * CDDL HEADER START 3236884Smm * 4236884Smm * The contents of this file are subject to the terms of the 5236884Smm * Common Development and Distribution License (the "License"). 6236884Smm * You may not use this file except in compliance with the License. 7236884Smm * 8236884Smm * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9236884Smm * or http://www.opensolaris.org/os/licensing. 10236884Smm * See the License for the specific language governing permissions 11236884Smm * and limitations under the License. 12236884Smm * 13236884Smm * When distributing Covered Code, include this CDDL HEADER in each 14236884Smm * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15236884Smm * If applicable, add the following below this CDDL HEADER, with the 16236884Smm * fields enclosed by brackets "[]" replaced with your own identifying 17236884Smm * information: Portions Copyright [yyyy] [name of copyright owner] 18236884Smm * 19236884Smm * CDDL HEADER END 20236884Smm */ 21236884Smm 22236884Smm/* 23262094Savg * Copyright (c) 2013 by Delphix. All rights reserved. 24247309Sdelphij * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 25262089Savg * Copyright (c) 2013, Joyent, Inc. All rights reserved. 26236884Smm */ 27236884Smm 28236884Smm#ifndef _ZFEATURE_COMMON_H 29236884Smm#define _ZFEATURE_COMMON_H 30236884Smm 31236884Smm#include <sys/fs/zfs.h> 32236884Smm#include <sys/types.h> 33236884Smm 34236884Smm#ifdef __cplusplus 35236884Smmextern "C" { 36236884Smm#endif 37236884Smm 38236884Smmstruct zfeature_info; 39236884Smm 40263391Sdelphijtypedef enum spa_feature { 41263391Sdelphij SPA_FEATURE_NONE = -1, 42263391Sdelphij SPA_FEATURE_ASYNC_DESTROY, 43263391Sdelphij SPA_FEATURE_EMPTY_BPOBJ, 44263391Sdelphij SPA_FEATURE_LZ4_COMPRESS, 45263391Sdelphij SPA_FEATURE_MULTI_VDEV_CRASH_DUMP, 46263391Sdelphij SPA_FEATURE_SPACEMAP_HISTOGRAM, 47263398Sdelphij SPA_FEATURE_ENABLED_TXG, 48263398Sdelphij SPA_FEATURE_HOLE_BIRTH, 49263391Sdelphij SPA_FEATURE_EXTENSIBLE_DATASET, 50263410Sdelphij SPA_FEATURE_BOOKMARKS, 51265754Sdelphij SPA_FEATURE_FS_SS_LIMIT, 52263391Sdelphij SPA_FEATURES 53263391Sdelphij} spa_feature_t; 54263391Sdelphij 55263398Sdelphij#define SPA_FEATURE_DISABLED (-1ULL) 56263398Sdelphij 57236884Smmtypedef struct zfeature_info { 58263391Sdelphij spa_feature_t fi_feature; 59236884Smm const char *fi_uname; /* User-facing feature name */ 60236884Smm const char *fi_guid; /* On-disk feature identifier */ 61236884Smm const char *fi_desc; /* Feature description */ 62236884Smm boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */ 63236884Smm boolean_t fi_mos; /* Is the feature necessary to read the MOS? */ 64263398Sdelphij /* Activate this feature at the same time it is enabled */ 65263398Sdelphij boolean_t fi_activate_on_enable; 66263391Sdelphij /* array of dependencies, terminated by SPA_FEATURE_NONE */ 67263391Sdelphij const spa_feature_t *fi_depends; 68236884Smm} zfeature_info_t; 69236884Smm 70236884Smmtypedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg); 71236884Smm 72236884Smm#define ZFS_FEATURE_DEBUG 73236884Smm 74236884Smmextern zfeature_info_t spa_feature_table[SPA_FEATURES]; 75236884Smm 76236884Smmextern boolean_t zfeature_is_valid_guid(const char *); 77236884Smm 78236884Smmextern boolean_t zfeature_is_supported(const char *); 79263391Sdelphijextern int zfeature_lookup_name(const char *name, spa_feature_t *res); 80263398Sdelphijextern boolean_t zfeature_depends_on(spa_feature_t fid, spa_feature_t check); 81236884Smm 82236884Smmextern void zpool_feature_init(void); 83236884Smm 84236884Smm#ifdef __cplusplus 85236884Smm} 86236884Smm#endif 87236884Smm 88236884Smm#endif /* _ZFEATURE_COMMON_H */ 89