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 /* 223f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 235cabbc6bSPrashanth Sreenivasa * Copyright (c) 2011, 2018 by Delphix. All rights reserved. 24e9103aaeSGarrett D'Amore * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 25bc9014e6SJustin Gibbs * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. 2645818ee1SMatthew Ahrens * Copyright 2013 Saso Kiselkov. All rights reserved. 27c3d26abcSMatthew Ahrens * Copyright (c) 2014 Integros [integros.com] 28ce1577b0SDave Eddy * Copyright 2017 Joyent, Inc. 291702cce7SAlek Pinchuk * Copyright (c) 2017 Datto Inc. 30fa9e4066Sahrens */ 31fa9e4066Sahrens 32fa9e4066Sahrens #ifndef _SYS_SPA_H 33fa9e4066Sahrens #define _SYS_SPA_H 34fa9e4066Sahrens 35fa9e4066Sahrens #include <sys/avl.h> 36fa9e4066Sahrens #include <sys/zfs_context.h> 37fa9e4066Sahrens #include <sys/nvpair.h> 385cabbc6bSPrashanth Sreenivasa #include <sys/sysevent.h> 39fa9e4066Sahrens #include <sys/sysmacros.h> 40fa9e4066Sahrens #include <sys/types.h> 41fa9e4066Sahrens #include <sys/fs/zfs.h> 424ba5b961SDan Kimmel #include <sys/dmu.h> 43fa9e4066Sahrens 44fa9e4066Sahrens #ifdef __cplusplus 45fa9e4066Sahrens extern "C" { 46fa9e4066Sahrens #endif 47fa9e4066Sahrens 48fa9e4066Sahrens /* 49fa9e4066Sahrens * Forward references that lots of things need. 50fa9e4066Sahrens */ 51fa9e4066Sahrens typedef struct spa spa_t; 52fa9e4066Sahrens typedef struct vdev vdev_t; 53fa9e4066Sahrens typedef struct metaslab metaslab_t; 54b24ab676SJeff Bonwick typedef struct metaslab_group metaslab_group_t; 55b24ab676SJeff Bonwick typedef struct metaslab_class metaslab_class_t; 56b24ab676SJeff Bonwick typedef struct zio zio_t; 57fa9e4066Sahrens typedef struct zilog zilog_t; 58fa94a07fSbrendan typedef struct spa_aux_vdev spa_aux_vdev_t; 59b24ab676SJeff Bonwick typedef struct ddt ddt_t; 60b24ab676SJeff Bonwick typedef struct ddt_entry ddt_entry_t; 61fa9e4066Sahrens struct dsl_pool; 624445fffbSMatthew Ahrens struct dsl_dataset; 63fa9e4066Sahrens 64fa9e4066Sahrens /* 65fa9e4066Sahrens * General-purpose 32-bit and 64-bit bitfield encodings. 66fa9e4066Sahrens */ 67fa9e4066Sahrens #define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len)) 68fa9e4066Sahrens #define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len)) 69fa9e4066Sahrens #define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low)) 70fa9e4066Sahrens #define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low)) 71fa9e4066Sahrens 72fa9e4066Sahrens #define BF32_GET(x, low, len) BF32_DECODE(x, low, len) 73fa9e4066Sahrens #define BF64_GET(x, low, len) BF64_DECODE(x, low, len) 74fa9e4066Sahrens 7543466aaeSMax Grossman #define BF32_SET(x, low, len, val) do { \ 7643466aaeSMax Grossman ASSERT3U(val, <, 1U << (len)); \ 7743466aaeSMax Grossman ASSERT3U(low + len, <=, 32); \ 7843466aaeSMax Grossman (x) ^= BF32_ENCODE((x >> low) ^ (val), low, len); \ 7943466aaeSMax Grossman _NOTE(CONSTCOND) } while (0) 8043466aaeSMax Grossman 8143466aaeSMax Grossman #define BF64_SET(x, low, len, val) do { \ 8243466aaeSMax Grossman ASSERT3U(val, <, 1ULL << (len)); \ 8343466aaeSMax Grossman ASSERT3U(low + len, <=, 64); \ 8443466aaeSMax Grossman ((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len)); \ 8543466aaeSMax Grossman _NOTE(CONSTCOND) } while (0) 86fa9e4066Sahrens 87fa9e4066Sahrens #define BF32_GET_SB(x, low, len, shift, bias) \ 88fa9e4066Sahrens ((BF32_GET(x, low, len) + (bias)) << (shift)) 89fa9e4066Sahrens #define BF64_GET_SB(x, low, len, shift, bias) \ 90fa9e4066Sahrens ((BF64_GET(x, low, len) + (bias)) << (shift)) 91fa9e4066Sahrens 9243466aaeSMax Grossman #define BF32_SET_SB(x, low, len, shift, bias, val) do { \ 9343466aaeSMax Grossman ASSERT(IS_P2ALIGNED(val, 1U << shift)); \ 9443466aaeSMax Grossman ASSERT3S((val) >> (shift), >=, bias); \ 9543466aaeSMax Grossman BF32_SET(x, low, len, ((val) >> (shift)) - (bias)); \ 9643466aaeSMax Grossman _NOTE(CONSTCOND) } while (0) 9743466aaeSMax Grossman #define BF64_SET_SB(x, low, len, shift, bias, val) do { \ 9843466aaeSMax Grossman ASSERT(IS_P2ALIGNED(val, 1ULL << shift)); \ 9943466aaeSMax Grossman ASSERT3S((val) >> (shift), >=, bias); \ 10043466aaeSMax Grossman BF64_SET(x, low, len, ((val) >> (shift)) - (bias)); \ 10143466aaeSMax Grossman _NOTE(CONSTCOND) } while (0) 102fa9e4066Sahrens 103fa9e4066Sahrens /* 104b5152584SMatthew Ahrens * We currently support block sizes from 512 bytes to 16MB. 105b5152584SMatthew Ahrens * The benefits of larger blocks, and thus larger IO, need to be weighed 106b5152584SMatthew Ahrens * against the cost of COWing a giant block to modify one byte, and the 107b5152584SMatthew Ahrens * large latency of reading or writing a large block. 108b5152584SMatthew Ahrens * 109b5152584SMatthew Ahrens * Note that although blocks up to 16MB are supported, the recordsize 110b5152584SMatthew Ahrens * property can not be set larger than zfs_max_recordsize (default 1MB). 111b5152584SMatthew Ahrens * See the comment near zfs_max_recordsize in dsl_dataset.c for details. 112b5152584SMatthew Ahrens * 113b5152584SMatthew Ahrens * Note that although the LSIZE field of the blkptr_t can store sizes up 114b5152584SMatthew Ahrens * to 32MB, the dnode's dn_datablkszsec can only store sizes up to 115b5152584SMatthew Ahrens * 32MB - 512 bytes. Therefore, we limit SPA_MAXBLOCKSIZE to 16MB. 116fa9e4066Sahrens */ 117fa9e4066Sahrens #define SPA_MINBLOCKSHIFT 9 118b5152584SMatthew Ahrens #define SPA_OLD_MAXBLOCKSHIFT 17 119b5152584SMatthew Ahrens #define SPA_MAXBLOCKSHIFT 24 120fa9e4066Sahrens #define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT) 121b5152584SMatthew Ahrens #define SPA_OLD_MAXBLOCKSIZE (1ULL << SPA_OLD_MAXBLOCKSHIFT) 122fa9e4066Sahrens #define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT) 123fa9e4066Sahrens 124f7991ba4STim Haley /* 125f7991ba4STim Haley * Size of block to hold the configuration data (a packed nvlist) 126f7991ba4STim Haley */ 127ad135b5dSChristopher Siden #define SPA_CONFIG_BLOCKSIZE (1ULL << 14) 128f7991ba4STim Haley 129fa9e4066Sahrens /* 130fa9e4066Sahrens * The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB. 131fa9e4066Sahrens * The ASIZE encoding should be at least 64 times larger (6 more bits) 132fa9e4066Sahrens * to support up to 4-way RAID-Z mirror mode with worst-case gang block 133fa9e4066Sahrens * overhead, three DVAs per bp, plus one more bit in case we do anything 134fa9e4066Sahrens * else that expands the ASIZE. 135fa9e4066Sahrens */ 136fa9e4066Sahrens #define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */ 137fa9e4066Sahrens #define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */ 138fa9e4066Sahrens #define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */ 139fa9e4066Sahrens 140dcbf3bd6SGeorge Wilson #define SPA_COMPRESSBITS 7 141*17f11284SSerapheim Dimitropoulos #define SPA_VDEVBITS 24 142dcbf3bd6SGeorge Wilson 143fa9e4066Sahrens /* 144fa9e4066Sahrens * All SPA data is represented by 128-bit data virtual addresses (DVAs). 145fa9e4066Sahrens * The members of the dva_t should be considered opaque outside the SPA. 146fa9e4066Sahrens */ 147fa9e4066Sahrens typedef struct dva { 148fa9e4066Sahrens uint64_t dva_word[2]; 149fa9e4066Sahrens } dva_t; 150fa9e4066Sahrens 151fa9e4066Sahrens /* 152fa9e4066Sahrens * Each block has a 256-bit checksum -- strong enough for cryptographic hashes. 153fa9e4066Sahrens */ 154fa9e4066Sahrens typedef struct zio_cksum { 155fa9e4066Sahrens uint64_t zc_word[4]; 156fa9e4066Sahrens } zio_cksum_t; 157fa9e4066Sahrens 15845818ee1SMatthew Ahrens /* 15945818ee1SMatthew Ahrens * Some checksums/hashes need a 256-bit initialization salt. This salt is kept 16045818ee1SMatthew Ahrens * secret and is suitable for use in MAC algorithms as the key. 16145818ee1SMatthew Ahrens */ 16245818ee1SMatthew Ahrens typedef struct zio_cksum_salt { 16345818ee1SMatthew Ahrens uint8_t zcs_bytes[32]; 16445818ee1SMatthew Ahrens } zio_cksum_salt_t; 16545818ee1SMatthew Ahrens 166fa9e4066Sahrens /* 167fa9e4066Sahrens * Each block is described by its DVAs, time of birth, checksum, etc. 168fa9e4066Sahrens * The word-by-word, bit-by-bit layout of the blkptr is as follows: 169fa9e4066Sahrens * 170fa9e4066Sahrens * 64 56 48 40 32 24 16 8 0 171fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 172*17f11284SSerapheim Dimitropoulos * 0 | pad | vdev1 | GRID | ASIZE | 173fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 174fa9e4066Sahrens * 1 |G| offset1 | 175fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 176*17f11284SSerapheim Dimitropoulos * 2 | pad | vdev2 | GRID | ASIZE | 177fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 178fa9e4066Sahrens * 3 |G| offset2 | 179fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 180*17f11284SSerapheim Dimitropoulos * 4 | pad | vdev3 | GRID | ASIZE | 181fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 182fa9e4066Sahrens * 5 |G| offset3 | 183fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 1845d7b4d43SMatthew Ahrens * 6 |BDX|lvl| type | cksum |E| comp| PSIZE | LSIZE | 185fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 186fa9e4066Sahrens * 7 | padding | 187fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 188fa9e4066Sahrens * 8 | padding | 189fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 190b24ab676SJeff Bonwick * 9 | physical birth txg | 191fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 192b24ab676SJeff Bonwick * a | logical birth txg | 193fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 194fa9e4066Sahrens * b | fill count | 195fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 196fa9e4066Sahrens * c | checksum[0] | 197fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 198fa9e4066Sahrens * d | checksum[1] | 199fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 200fa9e4066Sahrens * e | checksum[2] | 201fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 202fa9e4066Sahrens * f | checksum[3] | 203fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 204fa9e4066Sahrens * 205fa9e4066Sahrens * Legend: 206fa9e4066Sahrens * 207fa9e4066Sahrens * vdev virtual device ID 208fa9e4066Sahrens * offset offset into virtual device 209fa9e4066Sahrens * LSIZE logical size 210fa9e4066Sahrens * PSIZE physical size (after compression) 211fa9e4066Sahrens * ASIZE allocated size (including RAID-Z parity and gang block headers) 212fa9e4066Sahrens * GRID RAID-Z layout information (reserved for future use) 213fa9e4066Sahrens * cksum checksum function 214fa9e4066Sahrens * comp compression function 215fa9e4066Sahrens * G gang block indicator 216b24ab676SJeff Bonwick * B byteorder (endianness) 217b24ab676SJeff Bonwick * D dedup 2185d7b4d43SMatthew Ahrens * X encryption (on version 30, which is not supported) 2195d7b4d43SMatthew Ahrens * E blkptr_t contains embedded data (see below) 220fa9e4066Sahrens * lvl level of indirection 221b24ab676SJeff Bonwick * type DMU object type 2225cabbc6bSPrashanth Sreenivasa * phys birth txg when dva[0] was written; zero if same as logical birth txg 2235cabbc6bSPrashanth Sreenivasa * note that typically all the dva's would be written in this 2245cabbc6bSPrashanth Sreenivasa * txg, but they could be different if they were moved by 2255cabbc6bSPrashanth Sreenivasa * device removal. 226b24ab676SJeff Bonwick * log. birth transaction group in which the block was logically born 227fa9e4066Sahrens * fill count number of non-zero blocks under this bp 228fa9e4066Sahrens * checksum[4] 256-bit checksum of the data this bp describes 229fa9e4066Sahrens */ 2305d7b4d43SMatthew Ahrens 2315d7b4d43SMatthew Ahrens /* 2325d7b4d43SMatthew Ahrens * "Embedded" blkptr_t's don't actually point to a block, instead they 2335d7b4d43SMatthew Ahrens * have a data payload embedded in the blkptr_t itself. See the comment 2345d7b4d43SMatthew Ahrens * in blkptr.c for more details. 2355d7b4d43SMatthew Ahrens * 2365d7b4d43SMatthew Ahrens * The blkptr_t is laid out as follows: 2375d7b4d43SMatthew Ahrens * 2385d7b4d43SMatthew Ahrens * 64 56 48 40 32 24 16 8 0 2395d7b4d43SMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 2405d7b4d43SMatthew Ahrens * 0 | payload | 2415d7b4d43SMatthew Ahrens * 1 | payload | 2425d7b4d43SMatthew Ahrens * 2 | payload | 2435d7b4d43SMatthew Ahrens * 3 | payload | 2445d7b4d43SMatthew Ahrens * 4 | payload | 2455d7b4d43SMatthew Ahrens * 5 | payload | 2465d7b4d43SMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 2475d7b4d43SMatthew Ahrens * 6 |BDX|lvl| type | etype |E| comp| PSIZE| LSIZE | 2485d7b4d43SMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 2495d7b4d43SMatthew Ahrens * 7 | payload | 2505d7b4d43SMatthew Ahrens * 8 | payload | 2515d7b4d43SMatthew Ahrens * 9 | payload | 2525d7b4d43SMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 2535d7b4d43SMatthew Ahrens * a | logical birth txg | 2545d7b4d43SMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 2555d7b4d43SMatthew Ahrens * b | payload | 2565d7b4d43SMatthew Ahrens * c | payload | 2575d7b4d43SMatthew Ahrens * d | payload | 2585d7b4d43SMatthew Ahrens * e | payload | 2595d7b4d43SMatthew Ahrens * f | payload | 2605d7b4d43SMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 2615d7b4d43SMatthew Ahrens * 2625d7b4d43SMatthew Ahrens * Legend: 2635d7b4d43SMatthew Ahrens * 2645d7b4d43SMatthew Ahrens * payload contains the embedded data 2655d7b4d43SMatthew Ahrens * B (byteorder) byteorder (endianness) 2665d7b4d43SMatthew Ahrens * D (dedup) padding (set to zero) 2675d7b4d43SMatthew Ahrens * X encryption (set to zero; see above) 2685d7b4d43SMatthew Ahrens * E (embedded) set to one 2695d7b4d43SMatthew Ahrens * lvl indirection level 2705d7b4d43SMatthew Ahrens * type DMU object type 2715d7b4d43SMatthew Ahrens * etype how to interpret embedded data (BP_EMBEDDED_TYPE_*) 2725d7b4d43SMatthew Ahrens * comp compression function of payload 2735d7b4d43SMatthew Ahrens * PSIZE size of payload after compression, in bytes 2745d7b4d43SMatthew Ahrens * LSIZE logical size of payload, in bytes 2755d7b4d43SMatthew Ahrens * note that 25 bits is enough to store the largest 2765d7b4d43SMatthew Ahrens * "normal" BP's LSIZE (2^16 * 2^9) in bytes 2775d7b4d43SMatthew Ahrens * log. birth transaction group in which the block was logically born 2785d7b4d43SMatthew Ahrens * 2795d7b4d43SMatthew Ahrens * Note that LSIZE and PSIZE are stored in bytes, whereas for non-embedded 2805d7b4d43SMatthew Ahrens * bp's they are stored in units of SPA_MINBLOCKSHIFT. 2815d7b4d43SMatthew Ahrens * Generally, the generic BP_GET_*() macros can be used on embedded BP's. 2825d7b4d43SMatthew Ahrens * The B, D, X, lvl, type, and comp fields are stored the same as with normal 2835d7b4d43SMatthew Ahrens * BP's so the BP_SET_* macros can be used with them. etype, PSIZE, LSIZE must 2845d7b4d43SMatthew Ahrens * be set with the BPE_SET_* macros. BP_SET_EMBEDDED() should be called before 2855d7b4d43SMatthew Ahrens * other macros, as they assert that they are only used on BP's of the correct 2865d7b4d43SMatthew Ahrens * "embedded-ness". 2875d7b4d43SMatthew Ahrens */ 2885d7b4d43SMatthew Ahrens 2895d7b4d43SMatthew Ahrens #define BPE_GET_ETYPE(bp) \ 2905d7b4d43SMatthew Ahrens (ASSERT(BP_IS_EMBEDDED(bp)), \ 2915d7b4d43SMatthew Ahrens BF64_GET((bp)->blk_prop, 40, 8)) 2925d7b4d43SMatthew Ahrens #define BPE_SET_ETYPE(bp, t) do { \ 2935d7b4d43SMatthew Ahrens ASSERT(BP_IS_EMBEDDED(bp)); \ 2945d7b4d43SMatthew Ahrens BF64_SET((bp)->blk_prop, 40, 8, t); \ 2955d7b4d43SMatthew Ahrens _NOTE(CONSTCOND) } while (0) 2965d7b4d43SMatthew Ahrens 2975d7b4d43SMatthew Ahrens #define BPE_GET_LSIZE(bp) \ 2985d7b4d43SMatthew Ahrens (ASSERT(BP_IS_EMBEDDED(bp)), \ 2995d7b4d43SMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 0, 25, 0, 1)) 3005d7b4d43SMatthew Ahrens #define BPE_SET_LSIZE(bp, x) do { \ 3015d7b4d43SMatthew Ahrens ASSERT(BP_IS_EMBEDDED(bp)); \ 3025d7b4d43SMatthew Ahrens BF64_SET_SB((bp)->blk_prop, 0, 25, 0, 1, x); \ 3035d7b4d43SMatthew Ahrens _NOTE(CONSTCOND) } while (0) 3045d7b4d43SMatthew Ahrens 3055d7b4d43SMatthew Ahrens #define BPE_GET_PSIZE(bp) \ 3065d7b4d43SMatthew Ahrens (ASSERT(BP_IS_EMBEDDED(bp)), \ 3075d7b4d43SMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 25, 7, 0, 1)) 3085d7b4d43SMatthew Ahrens #define BPE_SET_PSIZE(bp, x) do { \ 3095d7b4d43SMatthew Ahrens ASSERT(BP_IS_EMBEDDED(bp)); \ 3105d7b4d43SMatthew Ahrens BF64_SET_SB((bp)->blk_prop, 25, 7, 0, 1, x); \ 3115d7b4d43SMatthew Ahrens _NOTE(CONSTCOND) } while (0) 3125d7b4d43SMatthew Ahrens 3135d7b4d43SMatthew Ahrens typedef enum bp_embedded_type { 3145d7b4d43SMatthew Ahrens BP_EMBEDDED_TYPE_DATA, 3155d7b4d43SMatthew Ahrens BP_EMBEDDED_TYPE_RESERVED, /* Reserved for an unintegrated feature. */ 3165d7b4d43SMatthew Ahrens NUM_BP_EMBEDDED_TYPES = BP_EMBEDDED_TYPE_RESERVED 3175d7b4d43SMatthew Ahrens } bp_embedded_type_t; 3185d7b4d43SMatthew Ahrens 3195d7b4d43SMatthew Ahrens #define BPE_NUM_WORDS 14 3205d7b4d43SMatthew Ahrens #define BPE_PAYLOAD_SIZE (BPE_NUM_WORDS * sizeof (uint64_t)) 3215d7b4d43SMatthew Ahrens #define BPE_IS_PAYLOADWORD(bp, wp) \ 3225d7b4d43SMatthew Ahrens ((wp) != &(bp)->blk_prop && (wp) != &(bp)->blk_birth) 3235d7b4d43SMatthew Ahrens 324fa9e4066Sahrens #define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */ 325fa9e4066Sahrens #define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */ 3266f793812SPavel Zakharov #define SPA_SYNC_MIN_VDEVS 3 /* min vdevs to update during sync */ 327fa9e4066Sahrens 32843466aaeSMax Grossman /* 32943466aaeSMax Grossman * A block is a hole when it has either 1) never been written to, or 33043466aaeSMax Grossman * 2) is zero-filled. In both cases, ZFS can return all zeroes for all reads 33143466aaeSMax Grossman * without physically allocating disk space. Holes are represented in the 33243466aaeSMax Grossman * blkptr_t structure by zeroed blk_dva. Correct checking for holes is 33343466aaeSMax Grossman * done through the BP_IS_HOLE macro. For holes, the logical size, level, 33443466aaeSMax Grossman * DMU object type, and birth times are all also stored for holes that 33543466aaeSMax Grossman * were written to at some point (i.e. were punched after having been filled). 33643466aaeSMax Grossman */ 337b24ab676SJeff Bonwick typedef struct blkptr { 338b24ab676SJeff Bonwick dva_t blk_dva[SPA_DVAS_PER_BP]; /* Data Virtual Addresses */ 339b24ab676SJeff Bonwick uint64_t blk_prop; /* size, compression, type, etc */ 340b24ab676SJeff Bonwick uint64_t blk_pad[2]; /* Extra space for the future */ 341b24ab676SJeff Bonwick uint64_t blk_phys_birth; /* txg when block was allocated */ 342b24ab676SJeff Bonwick uint64_t blk_birth; /* transaction group at birth */ 343b24ab676SJeff Bonwick uint64_t blk_fill; /* fill count */ 344b24ab676SJeff Bonwick zio_cksum_t blk_cksum; /* 256-bit checksum */ 345b24ab676SJeff Bonwick } blkptr_t; 346b24ab676SJeff Bonwick 347fa9e4066Sahrens /* 348fa9e4066Sahrens * Macros to get and set fields in a bp or DVA. 349fa9e4066Sahrens */ 350fa9e4066Sahrens #define DVA_GET_ASIZE(dva) \ 35143466aaeSMax Grossman BF64_GET_SB((dva)->dva_word[0], 0, SPA_ASIZEBITS, SPA_MINBLOCKSHIFT, 0) 352fa9e4066Sahrens #define DVA_SET_ASIZE(dva, x) \ 35343466aaeSMax Grossman BF64_SET_SB((dva)->dva_word[0], 0, SPA_ASIZEBITS, \ 35443466aaeSMax Grossman SPA_MINBLOCKSHIFT, 0, x) 355fa9e4066Sahrens 356fa9e4066Sahrens #define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8) 357fa9e4066Sahrens #define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x) 358fa9e4066Sahrens 359*17f11284SSerapheim Dimitropoulos #define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, SPA_VDEVBITS) 360*17f11284SSerapheim Dimitropoulos #define DVA_SET_VDEV(dva, x) \ 361*17f11284SSerapheim Dimitropoulos BF64_SET((dva)->dva_word[0], 32, SPA_VDEVBITS, x) 362fa9e4066Sahrens 363fa9e4066Sahrens #define DVA_GET_OFFSET(dva) \ 364fa9e4066Sahrens BF64_GET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0) 365fa9e4066Sahrens #define DVA_SET_OFFSET(dva, x) \ 366fa9e4066Sahrens BF64_SET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0, x) 367fa9e4066Sahrens 368fa9e4066Sahrens #define DVA_GET_GANG(dva) BF64_GET((dva)->dva_word[1], 63, 1) 369fa9e4066Sahrens #define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x) 370fa9e4066Sahrens 371fa9e4066Sahrens #define BP_GET_LSIZE(bp) \ 3725d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? \ 3735d7b4d43SMatthew Ahrens (BPE_GET_ETYPE(bp) == BP_EMBEDDED_TYPE_DATA ? BPE_GET_LSIZE(bp) : 0): \ 3745d7b4d43SMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1)) 3755d7b4d43SMatthew Ahrens #define BP_SET_LSIZE(bp, x) do { \ 3765d7b4d43SMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \ 3775d7b4d43SMatthew Ahrens BF64_SET_SB((bp)->blk_prop, \ 3785d7b4d43SMatthew Ahrens 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \ 3795d7b4d43SMatthew Ahrens _NOTE(CONSTCOND) } while (0) 380fa9e4066Sahrens 381fa9e4066Sahrens #define BP_GET_PSIZE(bp) \ 3825d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \ 3835d7b4d43SMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1)) 3845d7b4d43SMatthew Ahrens #define BP_SET_PSIZE(bp, x) do { \ 3855d7b4d43SMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \ 3865d7b4d43SMatthew Ahrens BF64_SET_SB((bp)->blk_prop, \ 3875d7b4d43SMatthew Ahrens 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \ 3885d7b4d43SMatthew Ahrens _NOTE(CONSTCOND) } while (0) 3895d7b4d43SMatthew Ahrens 390dcbf3bd6SGeorge Wilson #define BP_GET_COMPRESS(bp) \ 391dcbf3bd6SGeorge Wilson BF64_GET((bp)->blk_prop, 32, SPA_COMPRESSBITS) 392dcbf3bd6SGeorge Wilson #define BP_SET_COMPRESS(bp, x) \ 393dcbf3bd6SGeorge Wilson BF64_SET((bp)->blk_prop, 32, SPA_COMPRESSBITS, x) 394fa9e4066Sahrens 3955d7b4d43SMatthew Ahrens #define BP_IS_EMBEDDED(bp) BF64_GET((bp)->blk_prop, 39, 1) 3965d7b4d43SMatthew Ahrens #define BP_SET_EMBEDDED(bp, x) BF64_SET((bp)->blk_prop, 39, 1, x) 397b24ab676SJeff Bonwick 3985d7b4d43SMatthew Ahrens #define BP_GET_CHECKSUM(bp) \ 3995d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? ZIO_CHECKSUM_OFF : \ 4005d7b4d43SMatthew Ahrens BF64_GET((bp)->blk_prop, 40, 8)) 4015d7b4d43SMatthew Ahrens #define BP_SET_CHECKSUM(bp, x) do { \ 4025d7b4d43SMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \ 4035d7b4d43SMatthew Ahrens BF64_SET((bp)->blk_prop, 40, 8, x); \ 4045d7b4d43SMatthew Ahrens _NOTE(CONSTCOND) } while (0) 405b24ab676SJeff Bonwick 406b24ab676SJeff Bonwick #define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8) 407b24ab676SJeff Bonwick #define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x) 408fa9e4066Sahrens 409b24ab676SJeff Bonwick #define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5) 410b24ab676SJeff Bonwick #define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x) 411fa9e4066Sahrens 412b24ab676SJeff Bonwick #define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1) 413b24ab676SJeff Bonwick #define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x) 414fa9e4066Sahrens 41543466aaeSMax Grossman #define BP_GET_BYTEORDER(bp) BF64_GET((bp)->blk_prop, 63, 1) 416b24ab676SJeff Bonwick #define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x) 417b24ab676SJeff Bonwick 418b24ab676SJeff Bonwick #define BP_PHYSICAL_BIRTH(bp) \ 4195d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \ 4205d7b4d43SMatthew Ahrens (bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth) 421b24ab676SJeff Bonwick 422b24ab676SJeff Bonwick #define BP_SET_BIRTH(bp, logical, physical) \ 423b24ab676SJeff Bonwick { \ 4245d7b4d43SMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \ 425b24ab676SJeff Bonwick (bp)->blk_birth = (logical); \ 426b24ab676SJeff Bonwick (bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \ 427b24ab676SJeff Bonwick } 428fa9e4066Sahrens 4295d7b4d43SMatthew Ahrens #define BP_GET_FILL(bp) (BP_IS_EMBEDDED(bp) ? 1 : (bp)->blk_fill) 4305d7b4d43SMatthew Ahrens 431770499e1SDan Kimmel #define BP_IS_METADATA(bp) \ 432770499e1SDan Kimmel (BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 433770499e1SDan Kimmel 434fa9e4066Sahrens #define BP_GET_ASIZE(bp) \ 4355d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \ 4365d7b4d43SMatthew Ahrens DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \ 4375d7b4d43SMatthew Ahrens DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \ 4385d7b4d43SMatthew Ahrens DVA_GET_ASIZE(&(bp)->blk_dva[2])) 43999653d4eSeschrock 440770499e1SDan Kimmel #define BP_GET_UCSIZE(bp) \ 441770499e1SDan Kimmel (BP_IS_METADATA(bp) ? BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp)) 442fa9e4066Sahrens 44344cd46caSbillm #define BP_GET_NDVAS(bp) \ 4445d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \ 4455d7b4d43SMatthew Ahrens !!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \ 44644cd46caSbillm !!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \ 44744cd46caSbillm !!DVA_GET_ASIZE(&(bp)->blk_dva[2])) 44844cd46caSbillm 44944cd46caSbillm #define BP_COUNT_GANG(bp) \ 4505d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \ 45144cd46caSbillm (DVA_GET_GANG(&(bp)->blk_dva[0]) + \ 45244cd46caSbillm DVA_GET_GANG(&(bp)->blk_dva[1]) + \ 4535d7b4d43SMatthew Ahrens DVA_GET_GANG(&(bp)->blk_dva[2]))) 45444cd46caSbillm 455fa9e4066Sahrens #define DVA_EQUAL(dva1, dva2) \ 456fa9e4066Sahrens ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \ 457fa9e4066Sahrens (dva1)->dva_word[0] == (dva2)->dva_word[0]) 458fa9e4066Sahrens 459b24ab676SJeff Bonwick #define BP_EQUAL(bp1, bp2) \ 460b24ab676SJeff Bonwick (BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \ 4615d7b4d43SMatthew Ahrens (bp1)->blk_birth == (bp2)->blk_birth && \ 462b24ab676SJeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \ 463b24ab676SJeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \ 464b24ab676SJeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2])) 465b24ab676SJeff Bonwick 4666b4acc8bSahrens #define ZIO_CHECKSUM_EQUAL(zc1, zc2) \ 4676b4acc8bSahrens (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \ 4686b4acc8bSahrens ((zc1).zc_word[1] - (zc2).zc_word[1]) | \ 4696b4acc8bSahrens ((zc1).zc_word[2] - (zc2).zc_word[2]) | \ 4706b4acc8bSahrens ((zc1).zc_word[3] - (zc2).zc_word[3]))) 4716b4acc8bSahrens 47298110f08SMatthew Ahrens #define ZIO_CHECKSUM_IS_ZERO(zc) \ 47398110f08SMatthew Ahrens (0 == ((zc)->zc_word[0] | (zc)->zc_word[1] | \ 47498110f08SMatthew Ahrens (zc)->zc_word[2] | (zc)->zc_word[3])) 47598110f08SMatthew Ahrens 47698110f08SMatthew Ahrens #define ZIO_CHECKSUM_BSWAP(zcp) \ 47798110f08SMatthew Ahrens { \ 47898110f08SMatthew Ahrens (zcp)->zc_word[0] = BSWAP_64((zcp)->zc_word[0]); \ 47998110f08SMatthew Ahrens (zcp)->zc_word[1] = BSWAP_64((zcp)->zc_word[1]); \ 48098110f08SMatthew Ahrens (zcp)->zc_word[2] = BSWAP_64((zcp)->zc_word[2]); \ 48198110f08SMatthew Ahrens (zcp)->zc_word[3] = BSWAP_64((zcp)->zc_word[3]); \ 48298110f08SMatthew Ahrens } 48398110f08SMatthew Ahrens 48498110f08SMatthew Ahrens 485fa9e4066Sahrens #define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0) 486fa9e4066Sahrens 487fa9e4066Sahrens #define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3) \ 488fa9e4066Sahrens { \ 489fa9e4066Sahrens (zcp)->zc_word[0] = w0; \ 490fa9e4066Sahrens (zcp)->zc_word[1] = w1; \ 491fa9e4066Sahrens (zcp)->zc_word[2] = w2; \ 492fa9e4066Sahrens (zcp)->zc_word[3] = w3; \ 493fa9e4066Sahrens } 494fa9e4066Sahrens 4955d7b4d43SMatthew Ahrens #define BP_IDENTITY(bp) (ASSERT(!BP_IS_EMBEDDED(bp)), &(bp)->blk_dva[0]) 4965d7b4d43SMatthew Ahrens #define BP_IS_GANG(bp) \ 4975d7b4d43SMatthew Ahrens (BP_IS_EMBEDDED(bp) ? B_FALSE : DVA_GET_GANG(BP_IDENTITY(bp))) 49843466aaeSMax Grossman #define DVA_IS_EMPTY(dva) ((dva)->dva_word[0] == 0ULL && \ 49943466aaeSMax Grossman (dva)->dva_word[1] == 0ULL) 5005d7b4d43SMatthew Ahrens #define BP_IS_HOLE(bp) \ 5015d7b4d43SMatthew Ahrens (!BP_IS_EMBEDDED(bp) && DVA_IS_EMPTY(BP_IDENTITY(bp))) 502fa9e4066Sahrens 5036e1f5caaSNeil Perrin /* BP_IS_RAIDZ(bp) assumes no block compression */ 5046e1f5caaSNeil Perrin #define BP_IS_RAIDZ(bp) (DVA_GET_ASIZE(&(bp)->blk_dva[0]) > \ 5056e1f5caaSNeil Perrin BP_GET_PSIZE(bp)) 5066e1f5caaSNeil Perrin 507e14bb325SJeff Bonwick #define BP_ZERO(bp) \ 508fa9e4066Sahrens { \ 509fa9e4066Sahrens (bp)->blk_dva[0].dva_word[0] = 0; \ 510fa9e4066Sahrens (bp)->blk_dva[0].dva_word[1] = 0; \ 511fa9e4066Sahrens (bp)->blk_dva[1].dva_word[0] = 0; \ 512fa9e4066Sahrens (bp)->blk_dva[1].dva_word[1] = 0; \ 513fa9e4066Sahrens (bp)->blk_dva[2].dva_word[0] = 0; \ 514fa9e4066Sahrens (bp)->blk_dva[2].dva_word[1] = 0; \ 515fa9e4066Sahrens (bp)->blk_prop = 0; \ 516fa9e4066Sahrens (bp)->blk_pad[0] = 0; \ 517fa9e4066Sahrens (bp)->blk_pad[1] = 0; \ 518b24ab676SJeff Bonwick (bp)->blk_phys_birth = 0; \ 519e14bb325SJeff Bonwick (bp)->blk_birth = 0; \ 520fa9e4066Sahrens (bp)->blk_fill = 0; \ 521fa9e4066Sahrens ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \ 522fa9e4066Sahrens } 523fa9e4066Sahrens 524fa9e4066Sahrens #ifdef _BIG_ENDIAN 525fa9e4066Sahrens #define ZFS_HOST_BYTEORDER (0ULL) 526fa9e4066Sahrens #else 52743466aaeSMax Grossman #define ZFS_HOST_BYTEORDER (1ULL) 528fa9e4066Sahrens #endif 529fa9e4066Sahrens 530fa9e4066Sahrens #define BP_SHOULD_BYTESWAP(bp) (BP_GET_BYTEORDER(bp) != ZFS_HOST_BYTEORDER) 531fa9e4066Sahrens 53244cd46caSbillm #define BP_SPRINTF_LEN 320 533fbabab8fSmaybee 534b24ab676SJeff Bonwick /* 535b24ab676SJeff Bonwick * This macro allows code sharing between zfs, libzpool, and mdb. 536b24ab676SJeff Bonwick * 'func' is either snprintf() or mdb_snprintf(). 537b24ab676SJeff Bonwick * 'ws' (whitespace) can be ' ' for single-line format, '\n' for multi-line. 538b24ab676SJeff Bonwick */ 53943466aaeSMax Grossman #define SNPRINTF_BLKPTR(func, ws, buf, size, bp, type, checksum, compress) \ 540b24ab676SJeff Bonwick { \ 541b24ab676SJeff Bonwick static const char *copyname[] = \ 542b24ab676SJeff Bonwick { "zero", "single", "double", "triple" }; \ 543b24ab676SJeff Bonwick int len = 0; \ 544b24ab676SJeff Bonwick int copies = 0; \ 545b24ab676SJeff Bonwick \ 546b24ab676SJeff Bonwick if (bp == NULL) { \ 54743466aaeSMax Grossman len += func(buf + len, size - len, "<NULL>"); \ 548b24ab676SJeff Bonwick } else if (BP_IS_HOLE(bp)) { \ 54970163ac5SPrakash Surya len += func(buf + len, size - len, \ 55070163ac5SPrakash Surya "HOLE [L%llu %s] " \ 55170163ac5SPrakash Surya "size=%llxL birth=%lluL", \ 55270163ac5SPrakash Surya (u_longlong_t)BP_GET_LEVEL(bp), \ 55370163ac5SPrakash Surya type, \ 55470163ac5SPrakash Surya (u_longlong_t)BP_GET_LSIZE(bp), \ 55570163ac5SPrakash Surya (u_longlong_t)bp->blk_birth); \ 5565d7b4d43SMatthew Ahrens } else if (BP_IS_EMBEDDED(bp)) { \ 5575d7b4d43SMatthew Ahrens len = func(buf + len, size - len, \ 5585d7b4d43SMatthew Ahrens "EMBEDDED [L%llu %s] et=%u %s " \ 5595d7b4d43SMatthew Ahrens "size=%llxL/%llxP birth=%lluL", \ 5605d7b4d43SMatthew Ahrens (u_longlong_t)BP_GET_LEVEL(bp), \ 5615d7b4d43SMatthew Ahrens type, \ 5625d7b4d43SMatthew Ahrens (int)BPE_GET_ETYPE(bp), \ 5635d7b4d43SMatthew Ahrens compress, \ 5645d7b4d43SMatthew Ahrens (u_longlong_t)BPE_GET_LSIZE(bp), \ 5655d7b4d43SMatthew Ahrens (u_longlong_t)BPE_GET_PSIZE(bp), \ 5665d7b4d43SMatthew Ahrens (u_longlong_t)bp->blk_birth); \ 567b24ab676SJeff Bonwick } else { \ 568b24ab676SJeff Bonwick for (int d = 0; d < BP_GET_NDVAS(bp); d++) { \ 569b24ab676SJeff Bonwick const dva_t *dva = &bp->blk_dva[d]; \ 570b24ab676SJeff Bonwick if (DVA_IS_VALID(dva)) \ 571b24ab676SJeff Bonwick copies++; \ 572b24ab676SJeff Bonwick len += func(buf + len, size - len, \ 573b24ab676SJeff Bonwick "DVA[%d]=<%llu:%llx:%llx>%c", d, \ 574b24ab676SJeff Bonwick (u_longlong_t)DVA_GET_VDEV(dva), \ 575b24ab676SJeff Bonwick (u_longlong_t)DVA_GET_OFFSET(dva), \ 576b24ab676SJeff Bonwick (u_longlong_t)DVA_GET_ASIZE(dva), \ 577b24ab676SJeff Bonwick ws); \ 578b24ab676SJeff Bonwick } \ 579b24ab676SJeff Bonwick if (BP_IS_GANG(bp) && \ 580b24ab676SJeff Bonwick DVA_GET_ASIZE(&bp->blk_dva[2]) <= \ 581b24ab676SJeff Bonwick DVA_GET_ASIZE(&bp->blk_dva[1]) / 2) \ 582b24ab676SJeff Bonwick copies--; \ 583b24ab676SJeff Bonwick len += func(buf + len, size - len, \ 584b24ab676SJeff Bonwick "[L%llu %s] %s %s %s %s %s %s%c" \ 585b24ab676SJeff Bonwick "size=%llxL/%llxP birth=%lluL/%lluP fill=%llu%c" \ 586b24ab676SJeff Bonwick "cksum=%llx:%llx:%llx:%llx", \ 587b24ab676SJeff Bonwick (u_longlong_t)BP_GET_LEVEL(bp), \ 588b24ab676SJeff Bonwick type, \ 589b24ab676SJeff Bonwick checksum, \ 590b24ab676SJeff Bonwick compress, \ 591b24ab676SJeff Bonwick BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", \ 592b24ab676SJeff Bonwick BP_IS_GANG(bp) ? "gang" : "contiguous", \ 593b24ab676SJeff Bonwick BP_GET_DEDUP(bp) ? "dedup" : "unique", \ 594b24ab676SJeff Bonwick copyname[copies], \ 595b24ab676SJeff Bonwick ws, \ 596b24ab676SJeff Bonwick (u_longlong_t)BP_GET_LSIZE(bp), \ 597b24ab676SJeff Bonwick (u_longlong_t)BP_GET_PSIZE(bp), \ 598b24ab676SJeff Bonwick (u_longlong_t)bp->blk_birth, \ 599b24ab676SJeff Bonwick (u_longlong_t)BP_PHYSICAL_BIRTH(bp), \ 6005d7b4d43SMatthew Ahrens (u_longlong_t)BP_GET_FILL(bp), \ 601b24ab676SJeff Bonwick ws, \ 602b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[0], \ 603b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[1], \ 604b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[2], \ 605b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[3]); \ 606b24ab676SJeff Bonwick } \ 607b24ab676SJeff Bonwick ASSERT(len < size); \ 608b24ab676SJeff Bonwick } 609b24ab676SJeff Bonwick 610ad23a2dbSjohansen #define BP_GET_BUFC_TYPE(bp) \ 611770499e1SDan Kimmel (BP_IS_METADATA(bp) ? ARC_BUFC_METADATA : ARC_BUFC_DATA) 612fa9e4066Sahrens 6131195e687SMark J Musante typedef enum spa_import_type { 6141195e687SMark J Musante SPA_IMPORT_EXISTING, 6151195e687SMark J Musante SPA_IMPORT_ASSEMBLE 6161195e687SMark J Musante } spa_import_type_t; 6171195e687SMark J Musante 618fa9e4066Sahrens /* state manipulation functions */ 619fa9e4066Sahrens extern int spa_open(const char *pool, spa_t **, void *tag); 620468c413aSTim Haley extern int spa_open_rewind(const char *pool, spa_t **, void *tag, 621468c413aSTim Haley nvlist_t *policy, nvlist_t **config); 622ad135b5dSChristopher Siden extern int spa_get_stats(const char *pool, nvlist_t **config, char *altroot, 623ad135b5dSChristopher Siden size_t buflen); 624990b4856Slling extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props, 6254445fffbSMatthew Ahrens nvlist_t *zplprops); 626051aabe6Staylor extern int spa_import_rootpool(char *devpath, char *devid); 6274b964adaSGeorge Wilson extern int spa_import(const char *pool, nvlist_t *config, nvlist_t *props, 6284b964adaSGeorge Wilson uint64_t flags); 629fa9e4066Sahrens extern nvlist_t *spa_tryimport(nvlist_t *tryconfig); 630fa9e4066Sahrens extern int spa_destroy(char *pool); 63186714001SSerapheim Dimitropoulos extern int spa_checkpoint(const char *pool); 63286714001SSerapheim Dimitropoulos extern int spa_checkpoint_discard(const char *pool); 633394ab0cbSGeorge Wilson extern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force, 634394ab0cbSGeorge Wilson boolean_t hardforce); 635ea8dc4b6Seschrock extern int spa_reset(char *pool); 636ea8dc4b6Seschrock extern void spa_async_request(spa_t *spa, int flag); 637088f3894Sahrens extern void spa_async_unrequest(spa_t *spa, int flag); 638ea8dc4b6Seschrock extern void spa_async_suspend(spa_t *spa); 639ea8dc4b6Seschrock extern void spa_async_resume(spa_t *spa); 640ea8dc4b6Seschrock extern spa_t *spa_inject_addref(char *pool); 641ea8dc4b6Seschrock extern void spa_inject_delref(spa_t *spa); 6423f9d6ad7SLin Ling extern void spa_scan_stat_init(spa_t *spa); 6433f9d6ad7SLin Ling extern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps); 644ea8dc4b6Seschrock 645e14bb325SJeff Bonwick #define SPA_ASYNC_CONFIG_UPDATE 0x01 646e14bb325SJeff Bonwick #define SPA_ASYNC_REMOVE 0x02 647e14bb325SJeff Bonwick #define SPA_ASYNC_PROBE 0x04 648e14bb325SJeff Bonwick #define SPA_ASYNC_RESILVER_DONE 0x08 649e14bb325SJeff Bonwick #define SPA_ASYNC_RESILVER 0x10 650573ca77eSGeorge Wilson #define SPA_ASYNC_AUTOEXPAND 0x20 6513f9d6ad7SLin Ling #define SPA_ASYNC_REMOVE_DONE 0x40 6523f9d6ad7SLin Ling #define SPA_ASYNC_REMOVE_STOP 0x80 6533f9d6ad7SLin Ling 6543f9d6ad7SLin Ling /* 6553f9d6ad7SLin Ling * Controls the behavior of spa_vdev_remove(). 6563f9d6ad7SLin Ling */ 6573f9d6ad7SLin Ling #define SPA_REMOVE_UNSPARE 0x01 6583f9d6ad7SLin Ling #define SPA_REMOVE_DONE 0x02 659fa9e4066Sahrens 660fa9e4066Sahrens /* device manipulation */ 661fa9e4066Sahrens extern int spa_vdev_add(spa_t *spa, nvlist_t *nvroot); 662ea8dc4b6Seschrock extern int spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, 663fa9e4066Sahrens int replacing); 6648ad4d6ddSJeff Bonwick extern int spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, 6658ad4d6ddSJeff Bonwick int replace_done); 66699653d4eSeschrock extern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare); 6673f9d6ad7SLin Ling extern boolean_t spa_vdev_remove_active(spa_t *spa); 668c67d9675Seschrock extern int spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath); 6696809eb4eSEric Schrock extern int spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru); 6701195e687SMark J Musante extern int spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config, 6711195e687SMark J Musante nvlist_t *props, boolean_t exp); 672fa9e4066Sahrens 67399653d4eSeschrock /* spare state (which is global across all pools) */ 67439c23413Seschrock extern void spa_spare_add(vdev_t *vd); 67539c23413Seschrock extern void spa_spare_remove(vdev_t *vd); 67689a89ebfSlling extern boolean_t spa_spare_exists(uint64_t guid, uint64_t *pool, int *refcnt); 67739c23413Seschrock extern void spa_spare_activate(vdev_t *vd); 67899653d4eSeschrock 679fa94a07fSbrendan /* L2ARC state (which is global across all pools) */ 680fa94a07fSbrendan extern void spa_l2cache_add(vdev_t *vd); 681fa94a07fSbrendan extern void spa_l2cache_remove(vdev_t *vd); 682fa94a07fSbrendan extern boolean_t spa_l2cache_exists(uint64_t guid, uint64_t *pool); 683fa94a07fSbrendan extern void spa_l2cache_activate(vdev_t *vd); 684fa94a07fSbrendan extern void spa_l2cache_drop(spa_t *spa); 685fa94a07fSbrendan 6863f9d6ad7SLin Ling /* scanning */ 6873f9d6ad7SLin Ling extern int spa_scan(spa_t *spa, pool_scan_func_t func); 6883f9d6ad7SLin Ling extern int spa_scan_stop(spa_t *spa); 6891702cce7SAlek Pinchuk extern int spa_scrub_pause_resume(spa_t *spa, pool_scrub_cmd_t flag); 690fa9e4066Sahrens 691fa9e4066Sahrens /* spa syncing */ 692fa9e4066Sahrens extern void spa_sync(spa_t *spa, uint64_t txg); /* only for DMU use */ 693fa9e4066Sahrens extern void spa_sync_allpools(void); 694fa9e4066Sahrens 6953a737e0dSbrendan /* spa namespace global mutex */ 6963a737e0dSbrendan extern kmutex_t spa_namespace_lock; 6973a737e0dSbrendan 698fa9e4066Sahrens /* 699fa9e4066Sahrens * SPA configuration functions in spa_config.c 700fa9e4066Sahrens */ 7010373e76bSbonwick 7020373e76bSbonwick #define SPA_CONFIG_UPDATE_POOL 0 7030373e76bSbonwick #define SPA_CONFIG_UPDATE_VDEVS 1 7040373e76bSbonwick 7055cabbc6bSPrashanth Sreenivasa extern void spa_write_cachefile(spa_t *, boolean_t, boolean_t); 706fa9e4066Sahrens extern void spa_config_load(void); 707fa9e4066Sahrens extern nvlist_t *spa_all_configs(uint64_t *); 708fa9e4066Sahrens extern void spa_config_set(spa_t *spa, nvlist_t *config); 709fa9e4066Sahrens extern nvlist_t *spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, 710fa9e4066Sahrens int getstats); 7110373e76bSbonwick extern void spa_config_update(spa_t *spa, int what); 712fa9e4066Sahrens 713fa9e4066Sahrens /* 714fa9e4066Sahrens * Miscellaneous SPA routines in spa_misc.c 715fa9e4066Sahrens */ 716fa9e4066Sahrens 717fa9e4066Sahrens /* Namespace manipulation */ 718fa9e4066Sahrens extern spa_t *spa_lookup(const char *name); 719468c413aSTim Haley extern spa_t *spa_add(const char *name, nvlist_t *config, const char *altroot); 720fa9e4066Sahrens extern void spa_remove(spa_t *spa); 721fa9e4066Sahrens extern spa_t *spa_next(spa_t *prev); 722fa9e4066Sahrens 723fa9e4066Sahrens /* Refcount functions */ 724fa9e4066Sahrens extern void spa_open_ref(spa_t *spa, void *tag); 725fa9e4066Sahrens extern void spa_close(spa_t *spa, void *tag); 726bc9014e6SJustin Gibbs extern void spa_async_close(spa_t *spa, void *tag); 727fa9e4066Sahrens extern boolean_t spa_refcount_zero(spa_t *spa); 728fa9e4066Sahrens 7298f18d1faSGeorge Wilson #define SCL_NONE 0x00 730e14bb325SJeff Bonwick #define SCL_CONFIG 0x01 731e14bb325SJeff Bonwick #define SCL_STATE 0x02 732e14bb325SJeff Bonwick #define SCL_L2ARC 0x04 /* hack until L2ARC 2.0 */ 733e14bb325SJeff Bonwick #define SCL_ALLOC 0x08 734e14bb325SJeff Bonwick #define SCL_ZIO 0x10 735e14bb325SJeff Bonwick #define SCL_FREE 0x20 736e14bb325SJeff Bonwick #define SCL_VDEV 0x40 737e14bb325SJeff Bonwick #define SCL_LOCKS 7 738e14bb325SJeff Bonwick #define SCL_ALL ((1 << SCL_LOCKS) - 1) 739e14bb325SJeff Bonwick #define SCL_STATE_ALL (SCL_STATE | SCL_L2ARC | SCL_ZIO) 740e14bb325SJeff Bonwick 741e14bb325SJeff Bonwick /* Pool configuration locks */ 742e14bb325SJeff Bonwick extern int spa_config_tryenter(spa_t *spa, int locks, void *tag, krw_t rw); 743e14bb325SJeff Bonwick extern void spa_config_enter(spa_t *spa, int locks, void *tag, krw_t rw); 744e14bb325SJeff Bonwick extern void spa_config_exit(spa_t *spa, int locks, void *tag); 745e14bb325SJeff Bonwick extern int spa_config_held(spa_t *spa, int locks, krw_t rw); 746fa9e4066Sahrens 747fa9e4066Sahrens /* Pool vdev add/remove lock */ 748fa9e4066Sahrens extern uint64_t spa_vdev_enter(spa_t *spa); 74988ecc943SGeorge Wilson extern uint64_t spa_vdev_config_enter(spa_t *spa); 75088ecc943SGeorge Wilson extern void spa_vdev_config_exit(spa_t *spa, vdev_t *vd, uint64_t txg, 75188ecc943SGeorge Wilson int error, char *tag); 752fa9e4066Sahrens extern int spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error); 753fa9e4066Sahrens 754e14bb325SJeff Bonwick /* Pool vdev state change lock */ 7558f18d1faSGeorge Wilson extern void spa_vdev_state_enter(spa_t *spa, int oplock); 756e14bb325SJeff Bonwick extern int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error); 757e14bb325SJeff Bonwick 758b24ab676SJeff Bonwick /* Log state */ 759b24ab676SJeff Bonwick typedef enum spa_log_state { 760b24ab676SJeff Bonwick SPA_LOG_UNKNOWN = 0, /* unknown log state */ 761b24ab676SJeff Bonwick SPA_LOG_MISSING, /* missing log(s) */ 762b24ab676SJeff Bonwick SPA_LOG_CLEAR, /* clear the log(s) */ 763b24ab676SJeff Bonwick SPA_LOG_GOOD, /* log(s) are good */ 764b24ab676SJeff Bonwick } spa_log_state_t; 765b24ab676SJeff Bonwick 766b24ab676SJeff Bonwick extern spa_log_state_t spa_get_log_state(spa_t *spa); 767b24ab676SJeff Bonwick extern void spa_set_log_state(spa_t *spa, spa_log_state_t state); 7685cabbc6bSPrashanth Sreenivasa extern int spa_reset_logs(spa_t *spa); 769b24ab676SJeff Bonwick 770b24ab676SJeff Bonwick /* Log claim callback */ 771b24ab676SJeff Bonwick extern void spa_claim_notify(zio_t *zio); 772b24ab676SJeff Bonwick 773fa9e4066Sahrens /* Accessor functions */ 77488b7b0f2SMatthew Ahrens extern boolean_t spa_shutting_down(spa_t *spa); 775fa9e4066Sahrens extern struct dsl_pool *spa_get_dsl(spa_t *spa); 776ad135b5dSChristopher Siden extern boolean_t spa_is_initializing(spa_t *spa); 7775cabbc6bSPrashanth Sreenivasa extern boolean_t spa_indirect_vdevs_loaded(spa_t *spa); 778fa9e4066Sahrens extern blkptr_t *spa_get_rootblkptr(spa_t *spa); 779fa9e4066Sahrens extern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp); 780fa9e4066Sahrens extern void spa_altroot(spa_t *, char *, size_t); 781fa9e4066Sahrens extern int spa_sync_pass(spa_t *spa); 782fa9e4066Sahrens extern char *spa_name(spa_t *spa); 783fa9e4066Sahrens extern uint64_t spa_guid(spa_t *spa); 784e9103aaeSGarrett D'Amore extern uint64_t spa_load_guid(spa_t *spa); 785fa9e4066Sahrens extern uint64_t spa_last_synced_txg(spa_t *spa); 786fa9e4066Sahrens extern uint64_t spa_first_txg(spa_t *spa); 787b24ab676SJeff Bonwick extern uint64_t spa_syncing_txg(spa_t *spa); 7883991b535SGeorge Wilson extern uint64_t spa_final_dirty_txg(spa_t *spa); 78999653d4eSeschrock extern uint64_t spa_version(spa_t *spa); 79088b7b0f2SMatthew Ahrens extern pool_state_t spa_state(spa_t *spa); 791b16da2e2SGeorge Wilson extern spa_load_state_t spa_load_state(spa_t *spa); 792fa9e4066Sahrens extern uint64_t spa_freeze_txg(spa_t *spa); 79361e255ceSMatthew Ahrens extern uint64_t spa_get_worst_case_asize(spa_t *spa, uint64_t lsize); 794485bbbf5SGeorge Wilson extern uint64_t spa_get_dspace(spa_t *spa); 79586714001SSerapheim Dimitropoulos extern uint64_t spa_get_checkpoint_space(spa_t *spa); 796c39f2c8cSChristopher Siden extern uint64_t spa_get_slop_space(spa_t *spa); 797485bbbf5SGeorge Wilson extern void spa_update_dspace(spa_t *spa); 79844cd46caSbillm extern uint64_t spa_version(spa_t *spa); 799b24ab676SJeff Bonwick extern boolean_t spa_deflate(spa_t *spa); 800b24ab676SJeff Bonwick extern metaslab_class_t *spa_normal_class(spa_t *spa); 801b24ab676SJeff Bonwick extern metaslab_class_t *spa_log_class(spa_t *spa); 802bc9014e6SJustin Gibbs extern void spa_evicting_os_register(spa_t *, objset_t *os); 803bc9014e6SJustin Gibbs extern void spa_evicting_os_deregister(spa_t *, objset_t *os); 804bc9014e6SJustin Gibbs extern void spa_evicting_os_wait(spa_t *spa); 80544cd46caSbillm extern int spa_max_replication(spa_t *spa); 8063f9d6ad7SLin Ling extern int spa_prev_software_version(spa_t *spa); 807fa9e4066Sahrens extern int spa_busy(void); 8080a4e9518Sgw extern uint8_t spa_get_failmode(spa_t *spa); 809e14bb325SJeff Bonwick extern boolean_t spa_suspended(spa_t *spa); 810b24ab676SJeff Bonwick extern uint64_t spa_bootfs(spa_t *spa); 811b24ab676SJeff Bonwick extern uint64_t spa_delegation(spa_t *spa); 812b24ab676SJeff Bonwick extern objset_t *spa_meta_objset(spa_t *spa); 813283b8460SGeorge.Wilson extern uint64_t spa_deadman_synctime(spa_t *spa); 814fa9e4066Sahrens 815fa9e4066Sahrens /* Miscellaneous support routines */ 8163ee8c80cSPavel Zakharov extern void spa_load_failed(spa_t *spa, const char *fmt, ...); 8173ee8c80cSPavel Zakharov extern void spa_load_note(spa_t *spa, const char *fmt, ...); 81843466aaeSMax Grossman extern void spa_activate_mos_feature(spa_t *spa, const char *feature, 81943466aaeSMax Grossman dmu_tx_t *tx); 820ad135b5dSChristopher Siden extern void spa_deactivate_mos_feature(spa_t *spa, const char *feature); 821fa9e4066Sahrens extern int spa_rename(const char *oldname, const char *newname); 822f9af39baSGeorge Wilson extern spa_t *spa_by_guid(uint64_t pool_guid, uint64_t device_guid); 823fa9e4066Sahrens extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid); 824fa9e4066Sahrens extern char *spa_strdup(const char *); 825fa9e4066Sahrens extern void spa_strfree(char *); 826fa9e4066Sahrens extern uint64_t spa_get_random(uint64_t range); 8271195e687SMark J Musante extern uint64_t spa_generate_guid(spa_t *spa); 82843466aaeSMax Grossman extern void snprintf_blkptr(char *buf, size_t buflen, const blkptr_t *bp); 829fa9e4066Sahrens extern void spa_freeze(spa_t *spa); 830e9103aaeSGarrett D'Amore extern int spa_change_guid(spa_t *spa); 831990b4856Slling extern void spa_upgrade(spa_t *spa, uint64_t version); 832fa9e4066Sahrens extern void spa_evict_all(void); 833c5904d13Seschrock extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid, 834c5904d13Seschrock boolean_t l2cache); 83599653d4eSeschrock extern boolean_t spa_has_spare(spa_t *, uint64_t guid); 836b24ab676SJeff Bonwick extern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva); 837b24ab676SJeff Bonwick extern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp); 838b24ab676SJeff Bonwick extern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp); 8396ce0521aSperrin extern boolean_t spa_has_slogs(spa_t *spa); 840bf82a41bSeschrock extern boolean_t spa_is_root(spa_t *spa); 8418ad4d6ddSJeff Bonwick extern boolean_t spa_writeable(spa_t *spa); 84273527f44SAlex Reece extern boolean_t spa_has_pending_synctask(spa_t *spa); 843b5152584SMatthew Ahrens extern int spa_maxblocksize(spa_t *spa); 84486714001SSerapheim Dimitropoulos extern boolean_t spa_has_checkpoint(spa_t *spa); 84586714001SSerapheim Dimitropoulos extern boolean_t spa_importing_readonly_checkpoint(spa_t *spa); 84686714001SSerapheim Dimitropoulos extern boolean_t spa_suspend_async_destroy(spa_t *spa); 84786714001SSerapheim Dimitropoulos extern uint64_t spa_min_claim_txg(spa_t *spa); 848f63ab3d5SMatthew Ahrens extern void zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp); 8496f793812SPavel Zakharov extern boolean_t zfs_dva_valid(spa_t *spa, const dva_t *dva, 8506f793812SPavel Zakharov const blkptr_t *bp); 8515cabbc6bSPrashanth Sreenivasa typedef void (*spa_remap_cb_t)(uint64_t vdev, uint64_t offset, uint64_t size, 8525cabbc6bSPrashanth Sreenivasa void *arg); 8535cabbc6bSPrashanth Sreenivasa extern boolean_t spa_remap_blkptr(spa_t *spa, blkptr_t *bp, 8545cabbc6bSPrashanth Sreenivasa spa_remap_cb_t callback, void *arg); 8555cabbc6bSPrashanth Sreenivasa extern uint64_t spa_get_last_removal_txg(spa_t *spa); 8566f793812SPavel Zakharov extern boolean_t spa_trust_config(spa_t *spa); 8576f793812SPavel Zakharov extern uint64_t spa_missing_tvds_allowed(spa_t *spa); 8586f793812SPavel Zakharov extern void spa_set_missing_tvds(spa_t *spa, uint64_t missing); 85986714001SSerapheim Dimitropoulos extern boolean_t spa_top_vdevs_spacemap_addressable(spa_t *spa); 860468c413aSTim Haley 8618ad4d6ddSJeff Bonwick extern int spa_mode(spa_t *spa); 8624585130bSYuri Pankov extern uint64_t zfs_strtonum(const char *str, char **nptr); 863ea8dc4b6Seschrock 864ecd6cf80Smarks extern char *spa_his_ievent_table[]; 865ecd6cf80Smarks 86606eeb2adSek extern void spa_history_create_obj(spa_t *spa, dmu_tx_t *tx); 86706eeb2adSek extern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read, 86806eeb2adSek char *his_buf); 8694445fffbSMatthew Ahrens extern int spa_history_log(spa_t *spa, const char *his_buf); 8704445fffbSMatthew Ahrens extern int spa_history_log_nvl(spa_t *spa, nvlist_t *nvl); 8714445fffbSMatthew Ahrens extern void spa_history_log_version(spa_t *spa, const char *operation); 8724445fffbSMatthew Ahrens extern void spa_history_log_internal(spa_t *spa, const char *operation, 8734445fffbSMatthew Ahrens dmu_tx_t *tx, const char *fmt, ...); 8744445fffbSMatthew Ahrens extern void spa_history_log_internal_ds(struct dsl_dataset *ds, const char *op, 8754445fffbSMatthew Ahrens dmu_tx_t *tx, const char *fmt, ...); 8764445fffbSMatthew Ahrens extern void spa_history_log_internal_dd(dsl_dir_t *dd, const char *operation, 8774445fffbSMatthew Ahrens dmu_tx_t *tx, const char *fmt, ...); 87806eeb2adSek 879ea8dc4b6Seschrock /* error handling */ 8807802d7bfSMatthew Ahrens struct zbookmark_phys; 881b24ab676SJeff Bonwick extern void spa_log_error(spa_t *spa, zio_t *zio); 882ea8dc4b6Seschrock extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd, 883b24ab676SJeff Bonwick zio_t *zio, uint64_t stateoroffset, uint64_t length); 8843d7072f8Seschrock extern void zfs_post_remove(spa_t *spa, vdev_t *vd); 885069f55e2SEric Schrock extern void zfs_post_state_change(spa_t *spa, vdev_t *vd); 8863d7072f8Seschrock extern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd); 887ea8dc4b6Seschrock extern uint64_t spa_get_errlog_size(spa_t *spa); 888ea8dc4b6Seschrock extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count); 889ea8dc4b6Seschrock extern void spa_errlog_rotate(spa_t *spa); 890ea8dc4b6Seschrock extern void spa_errlog_drain(spa_t *spa); 891ea8dc4b6Seschrock extern void spa_errlog_sync(spa_t *spa, uint64_t txg); 892ea8dc4b6Seschrock extern void spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub); 893fa9e4066Sahrens 89487db74c1Sek /* vdev cache */ 89587db74c1Sek extern void vdev_cache_stat_init(void); 89687db74c1Sek extern void vdev_cache_stat_fini(void); 89787db74c1Sek 898fa9e4066Sahrens /* Initialization and termination */ 899fa9e4066Sahrens extern void spa_init(int flags); 900fa9e4066Sahrens extern void spa_fini(void); 9013f7978d0SAlan Somers extern void spa_boot_init(void); 902fa9e4066Sahrens 903b1b8ab34Slling /* properties */ 904990b4856Slling extern int spa_prop_set(spa_t *spa, nvlist_t *nvp); 905990b4856Slling extern int spa_prop_get(spa_t *spa, nvlist_t **nvp); 906990b4856Slling extern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx); 907379c004dSEric Schrock extern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t); 908b1b8ab34Slling 9093d7072f8Seschrock /* asynchronous event notification */ 910ce1577b0SDave Eddy extern void spa_event_notify(spa_t *spa, vdev_t *vdev, nvlist_t *hist_nvl, 911ce1577b0SDave Eddy const char *name); 9125cabbc6bSPrashanth Sreenivasa extern sysevent_t *spa_event_create(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, 9135cabbc6bSPrashanth Sreenivasa const char *name); 9145cabbc6bSPrashanth Sreenivasa extern void spa_event_post(sysevent_t *ev); 9155cabbc6bSPrashanth Sreenivasa extern void spa_event_discard(sysevent_t *ev); 9163d7072f8Seschrock 917fa9e4066Sahrens #ifdef ZFS_DEBUG 918c0a81264Sek #define dprintf_bp(bp, fmt, ...) do { \ 91943466aaeSMax Grossman if (zfs_flags & ZFS_DEBUG_DPRINTF) { \ 920c0a81264Sek char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \ 92143466aaeSMax Grossman snprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, (bp)); \ 922c0a81264Sek dprintf(fmt " %s\n", __VA_ARGS__, __blkbuf); \ 923c0a81264Sek kmem_free(__blkbuf, BP_SPRINTF_LEN); \ 924fa9e4066Sahrens } \ 925fa9e4066Sahrens _NOTE(CONSTCOND) } while (0) 926fa9e4066Sahrens #else 927fa9e4066Sahrens #define dprintf_bp(bp, fmt, ...) 928fa9e4066Sahrens #endif 929fa9e4066Sahrens 93009c9d376SGeorge Wilson extern boolean_t spa_debug_enabled(spa_t *spa); 93109c9d376SGeorge Wilson #define spa_dbgmsg(spa, ...) \ 93209c9d376SGeorge Wilson { \ 93309c9d376SGeorge Wilson if (spa_debug_enabled(spa)) \ 93409c9d376SGeorge Wilson zfs_dbgmsg(__VA_ARGS__); \ 93509c9d376SGeorge Wilson } 93609c9d376SGeorge Wilson 9378ad4d6ddSJeff Bonwick extern int spa_mode_global; /* mode, e.g. FREAD | FWRITE */ 938fa9e4066Sahrens 939fa9e4066Sahrens #ifdef __cplusplus 940fa9e4066Sahrens } 941fa9e4066Sahrens #endif 942fa9e4066Sahrens 943fa9e4066Sahrens #endif /* _SYS_SPA_H */ 944