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/* 23262093Savg * Copyright (c) 2013 by Delphix. All rights reserved. 24246586Sdelphij * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 25255750Sdelphij * 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 40263390Sdelphijtypedef enum spa_feature { 41263390Sdelphij SPA_FEATURE_NONE = -1, 42263390Sdelphij SPA_FEATURE_ASYNC_DESTROY, 43263390Sdelphij SPA_FEATURE_EMPTY_BPOBJ, 44263390Sdelphij SPA_FEATURE_LZ4_COMPRESS, 45263390Sdelphij SPA_FEATURE_MULTI_VDEV_CRASH_DUMP, 46263390Sdelphij SPA_FEATURE_SPACEMAP_HISTOGRAM, 47263397Sdelphij SPA_FEATURE_ENABLED_TXG, 48263397Sdelphij SPA_FEATURE_HOLE_BIRTH, 49263390Sdelphij SPA_FEATURE_EXTENSIBLE_DATASET, 50268649Sdelphij SPA_FEATURE_EMBEDDED_DATA, 51263407Sdelphij SPA_FEATURE_BOOKMARKS, 52265744Sdelphij SPA_FEATURE_FS_SS_LIMIT, 53263390Sdelphij SPA_FEATURES 54263390Sdelphij} spa_feature_t; 55263390Sdelphij 56263397Sdelphij#define SPA_FEATURE_DISABLED (-1ULL) 57263397Sdelphij 58236884Smmtypedef struct zfeature_info { 59263390Sdelphij spa_feature_t fi_feature; 60236884Smm const char *fi_uname; /* User-facing feature name */ 61236884Smm const char *fi_guid; /* On-disk feature identifier */ 62236884Smm const char *fi_desc; /* Feature description */ 63236884Smm boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */ 64236884Smm boolean_t fi_mos; /* Is the feature necessary to read the MOS? */ 65263397Sdelphij /* Activate this feature at the same time it is enabled */ 66263397Sdelphij boolean_t fi_activate_on_enable; 67263390Sdelphij /* array of dependencies, terminated by SPA_FEATURE_NONE */ 68263390Sdelphij const spa_feature_t *fi_depends; 69236884Smm} zfeature_info_t; 70236884Smm 71268649Sdelphijtypedef int (zfeature_func_t)(zfeature_info_t *, void *); 72236884Smm 73236884Smm#define ZFS_FEATURE_DEBUG 74236884Smm 75236884Smmextern zfeature_info_t spa_feature_table[SPA_FEATURES]; 76236884Smm 77236884Smmextern boolean_t zfeature_is_valid_guid(const char *); 78236884Smm 79236884Smmextern boolean_t zfeature_is_supported(const char *); 80268649Sdelphijextern int zfeature_lookup_name(const char *, spa_feature_t *); 81268649Sdelphijextern boolean_t zfeature_depends_on(spa_feature_t, spa_feature_t); 82236884Smm 83236884Smmextern void zpool_feature_init(void); 84236884Smm 85236884Smm#ifdef __cplusplus 86236884Smm} 87236884Smm#endif 88236884Smm 89236884Smm#endif /* _ZFEATURE_COMMON_H */ 90