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 /* 22*3f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23fa9e4066Sahrens */ 24fa9e4066Sahrens 25fa9e4066Sahrens #ifndef _SYS_SPA_H 26fa9e4066Sahrens #define _SYS_SPA_H 27fa9e4066Sahrens 28fa9e4066Sahrens #include <sys/avl.h> 29fa9e4066Sahrens #include <sys/zfs_context.h> 30fa9e4066Sahrens #include <sys/nvpair.h> 31fa9e4066Sahrens #include <sys/sysmacros.h> 32fa9e4066Sahrens #include <sys/types.h> 33fa9e4066Sahrens #include <sys/fs/zfs.h> 34fa9e4066Sahrens 35fa9e4066Sahrens #ifdef __cplusplus 36fa9e4066Sahrens extern "C" { 37fa9e4066Sahrens #endif 38fa9e4066Sahrens 39fa9e4066Sahrens /* 40fa9e4066Sahrens * Forward references that lots of things need. 41fa9e4066Sahrens */ 42fa9e4066Sahrens typedef struct spa spa_t; 43fa9e4066Sahrens typedef struct vdev vdev_t; 44fa9e4066Sahrens typedef struct metaslab metaslab_t; 45b24ab676SJeff Bonwick typedef struct metaslab_group metaslab_group_t; 46b24ab676SJeff Bonwick typedef struct metaslab_class metaslab_class_t; 47b24ab676SJeff Bonwick typedef struct zio zio_t; 48fa9e4066Sahrens typedef struct zilog zilog_t; 49fa94a07fSbrendan typedef struct spa_aux_vdev spa_aux_vdev_t; 50b24ab676SJeff Bonwick typedef struct ddt ddt_t; 51b24ab676SJeff Bonwick typedef struct ddt_entry ddt_entry_t; 52fa9e4066Sahrens struct dsl_pool; 53fa9e4066Sahrens 54fa9e4066Sahrens /* 55fa9e4066Sahrens * General-purpose 32-bit and 64-bit bitfield encodings. 56fa9e4066Sahrens */ 57fa9e4066Sahrens #define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len)) 58fa9e4066Sahrens #define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len)) 59fa9e4066Sahrens #define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low)) 60fa9e4066Sahrens #define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low)) 61fa9e4066Sahrens 62fa9e4066Sahrens #define BF32_GET(x, low, len) BF32_DECODE(x, low, len) 63fa9e4066Sahrens #define BF64_GET(x, low, len) BF64_DECODE(x, low, len) 64fa9e4066Sahrens 65fa9e4066Sahrens #define BF32_SET(x, low, len, val) \ 665ad82045Snd ((x) ^= BF32_ENCODE((x >> low) ^ (val), low, len)) 67fa9e4066Sahrens #define BF64_SET(x, low, len, val) \ 685ad82045Snd ((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len)) 69fa9e4066Sahrens 70fa9e4066Sahrens #define BF32_GET_SB(x, low, len, shift, bias) \ 71fa9e4066Sahrens ((BF32_GET(x, low, len) + (bias)) << (shift)) 72fa9e4066Sahrens #define BF64_GET_SB(x, low, len, shift, bias) \ 73fa9e4066Sahrens ((BF64_GET(x, low, len) + (bias)) << (shift)) 74fa9e4066Sahrens 75fa9e4066Sahrens #define BF32_SET_SB(x, low, len, shift, bias, val) \ 76fa9e4066Sahrens BF32_SET(x, low, len, ((val) >> (shift)) - (bias)) 77fa9e4066Sahrens #define BF64_SET_SB(x, low, len, shift, bias, val) \ 78fa9e4066Sahrens BF64_SET(x, low, len, ((val) >> (shift)) - (bias)) 79fa9e4066Sahrens 80fa9e4066Sahrens /* 81fa9e4066Sahrens * We currently support nine block sizes, from 512 bytes to 128K. 82fa9e4066Sahrens * We could go higher, but the benefits are near-zero and the cost 83fa9e4066Sahrens * of COWing a giant block to modify one byte would become excessive. 84fa9e4066Sahrens */ 85fa9e4066Sahrens #define SPA_MINBLOCKSHIFT 9 86fa9e4066Sahrens #define SPA_MAXBLOCKSHIFT 17 87fa9e4066Sahrens #define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT) 88fa9e4066Sahrens #define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT) 89fa9e4066Sahrens 90fa9e4066Sahrens #define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1) 91fa9e4066Sahrens 92f7991ba4STim Haley /* 93f7991ba4STim Haley * Size of block to hold the configuration data (a packed nvlist) 94f7991ba4STim Haley */ 95f7991ba4STim Haley #define SPA_CONFIG_BLOCKSIZE (1 << 14) 96f7991ba4STim Haley 97fa9e4066Sahrens /* 98fa9e4066Sahrens * The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB. 99fa9e4066Sahrens * The ASIZE encoding should be at least 64 times larger (6 more bits) 100fa9e4066Sahrens * to support up to 4-way RAID-Z mirror mode with worst-case gang block 101fa9e4066Sahrens * overhead, three DVAs per bp, plus one more bit in case we do anything 102fa9e4066Sahrens * else that expands the ASIZE. 103fa9e4066Sahrens */ 104fa9e4066Sahrens #define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */ 105fa9e4066Sahrens #define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */ 106fa9e4066Sahrens #define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */ 107fa9e4066Sahrens 108fa9e4066Sahrens /* 109fa9e4066Sahrens * All SPA data is represented by 128-bit data virtual addresses (DVAs). 110fa9e4066Sahrens * The members of the dva_t should be considered opaque outside the SPA. 111fa9e4066Sahrens */ 112fa9e4066Sahrens typedef struct dva { 113fa9e4066Sahrens uint64_t dva_word[2]; 114fa9e4066Sahrens } dva_t; 115fa9e4066Sahrens 116fa9e4066Sahrens /* 117fa9e4066Sahrens * Each block has a 256-bit checksum -- strong enough for cryptographic hashes. 118fa9e4066Sahrens */ 119fa9e4066Sahrens typedef struct zio_cksum { 120fa9e4066Sahrens uint64_t zc_word[4]; 121fa9e4066Sahrens } zio_cksum_t; 122fa9e4066Sahrens 123fa9e4066Sahrens /* 124fa9e4066Sahrens * Each block is described by its DVAs, time of birth, checksum, etc. 125fa9e4066Sahrens * The word-by-word, bit-by-bit layout of the blkptr is as follows: 126fa9e4066Sahrens * 127fa9e4066Sahrens * 64 56 48 40 32 24 16 8 0 128fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 129fa9e4066Sahrens * 0 | vdev1 | GRID | ASIZE | 130fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 131fa9e4066Sahrens * 1 |G| offset1 | 132fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 133fa9e4066Sahrens * 2 | vdev2 | GRID | ASIZE | 134fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 135fa9e4066Sahrens * 3 |G| offset2 | 136fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 137fa9e4066Sahrens * 4 | vdev3 | GRID | ASIZE | 138fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 139fa9e4066Sahrens * 5 |G| offset3 | 140fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 141b24ab676SJeff Bonwick * 6 |BDX|lvl| type | cksum | comp | PSIZE | LSIZE | 142fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 143fa9e4066Sahrens * 7 | padding | 144fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 145fa9e4066Sahrens * 8 | padding | 146fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 147b24ab676SJeff Bonwick * 9 | physical birth txg | 148fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 149b24ab676SJeff Bonwick * a | logical birth txg | 150fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 151fa9e4066Sahrens * b | fill count | 152fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 153fa9e4066Sahrens * c | checksum[0] | 154fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 155fa9e4066Sahrens * d | checksum[1] | 156fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 157fa9e4066Sahrens * e | checksum[2] | 158fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 159fa9e4066Sahrens * f | checksum[3] | 160fa9e4066Sahrens * +-------+-------+-------+-------+-------+-------+-------+-------+ 161fa9e4066Sahrens * 162fa9e4066Sahrens * Legend: 163fa9e4066Sahrens * 164fa9e4066Sahrens * vdev virtual device ID 165fa9e4066Sahrens * offset offset into virtual device 166fa9e4066Sahrens * LSIZE logical size 167fa9e4066Sahrens * PSIZE physical size (after compression) 168fa9e4066Sahrens * ASIZE allocated size (including RAID-Z parity and gang block headers) 169fa9e4066Sahrens * GRID RAID-Z layout information (reserved for future use) 170fa9e4066Sahrens * cksum checksum function 171fa9e4066Sahrens * comp compression function 172fa9e4066Sahrens * G gang block indicator 173b24ab676SJeff Bonwick * B byteorder (endianness) 174b24ab676SJeff Bonwick * D dedup 175b24ab676SJeff Bonwick * X unused 176fa9e4066Sahrens * lvl level of indirection 177b24ab676SJeff Bonwick * type DMU object type 178b24ab676SJeff Bonwick * phys birth txg of block allocation; zero if same as logical birth txg 179b24ab676SJeff Bonwick * log. birth transaction group in which the block was logically born 180fa9e4066Sahrens * fill count number of non-zero blocks under this bp 181fa9e4066Sahrens * checksum[4] 256-bit checksum of the data this bp describes 182fa9e4066Sahrens */ 183fa9e4066Sahrens #define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */ 184fa9e4066Sahrens #define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */ 185fa9e4066Sahrens 186b24ab676SJeff Bonwick typedef struct blkptr { 187b24ab676SJeff Bonwick dva_t blk_dva[SPA_DVAS_PER_BP]; /* Data Virtual Addresses */ 188b24ab676SJeff Bonwick uint64_t blk_prop; /* size, compression, type, etc */ 189b24ab676SJeff Bonwick uint64_t blk_pad[2]; /* Extra space for the future */ 190b24ab676SJeff Bonwick uint64_t blk_phys_birth; /* txg when block was allocated */ 191b24ab676SJeff Bonwick uint64_t blk_birth; /* transaction group at birth */ 192b24ab676SJeff Bonwick uint64_t blk_fill; /* fill count */ 193b24ab676SJeff Bonwick zio_cksum_t blk_cksum; /* 256-bit checksum */ 194b24ab676SJeff Bonwick } blkptr_t; 195b24ab676SJeff Bonwick 196fa9e4066Sahrens /* 197fa9e4066Sahrens * Macros to get and set fields in a bp or DVA. 198fa9e4066Sahrens */ 199fa9e4066Sahrens #define DVA_GET_ASIZE(dva) \ 200fa9e4066Sahrens BF64_GET_SB((dva)->dva_word[0], 0, 24, SPA_MINBLOCKSHIFT, 0) 201fa9e4066Sahrens #define DVA_SET_ASIZE(dva, x) \ 202fa9e4066Sahrens BF64_SET_SB((dva)->dva_word[0], 0, 24, SPA_MINBLOCKSHIFT, 0, x) 203fa9e4066Sahrens 204fa9e4066Sahrens #define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8) 205fa9e4066Sahrens #define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x) 206fa9e4066Sahrens 207fa9e4066Sahrens #define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, 32) 208fa9e4066Sahrens #define DVA_SET_VDEV(dva, x) BF64_SET((dva)->dva_word[0], 32, 32, x) 209fa9e4066Sahrens 210fa9e4066Sahrens #define DVA_GET_OFFSET(dva) \ 211fa9e4066Sahrens BF64_GET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0) 212fa9e4066Sahrens #define DVA_SET_OFFSET(dva, x) \ 213fa9e4066Sahrens BF64_SET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0, x) 214fa9e4066Sahrens 215fa9e4066Sahrens #define DVA_GET_GANG(dva) BF64_GET((dva)->dva_word[1], 63, 1) 216fa9e4066Sahrens #define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x) 217fa9e4066Sahrens 218fa9e4066Sahrens #define BP_GET_LSIZE(bp) \ 219975c32a0SNeil Perrin BF64_GET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1) 220fa9e4066Sahrens #define BP_SET_LSIZE(bp, x) \ 221fa9e4066Sahrens BF64_SET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1, x) 222fa9e4066Sahrens 223fa9e4066Sahrens #define BP_GET_PSIZE(bp) \ 224fa9e4066Sahrens BF64_GET_SB((bp)->blk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1) 225fa9e4066Sahrens #define BP_SET_PSIZE(bp, x) \ 226fa9e4066Sahrens BF64_SET_SB((bp)->blk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1, x) 227fa9e4066Sahrens 228b24ab676SJeff Bonwick #define BP_GET_COMPRESS(bp) BF64_GET((bp)->blk_prop, 32, 8) 229b24ab676SJeff Bonwick #define BP_SET_COMPRESS(bp, x) BF64_SET((bp)->blk_prop, 32, 8, x) 230b24ab676SJeff Bonwick 231b24ab676SJeff Bonwick #define BP_GET_CHECKSUM(bp) BF64_GET((bp)->blk_prop, 40, 8) 232b24ab676SJeff Bonwick #define BP_SET_CHECKSUM(bp, x) BF64_SET((bp)->blk_prop, 40, 8, x) 233b24ab676SJeff Bonwick 234b24ab676SJeff Bonwick #define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8) 235b24ab676SJeff Bonwick #define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x) 236fa9e4066Sahrens 237b24ab676SJeff Bonwick #define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5) 238b24ab676SJeff Bonwick #define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x) 239fa9e4066Sahrens 240b24ab676SJeff Bonwick #define BP_GET_PROP_BIT_61(bp) BF64_GET((bp)->blk_prop, 61, 1) 241b24ab676SJeff Bonwick #define BP_SET_PROP_BIT_61(bp, x) BF64_SET((bp)->blk_prop, 61, 1, x) 242fa9e4066Sahrens 243b24ab676SJeff Bonwick #define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1) 244b24ab676SJeff Bonwick #define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x) 245fa9e4066Sahrens 246b24ab676SJeff Bonwick #define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1)) 247b24ab676SJeff Bonwick #define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x) 248b24ab676SJeff Bonwick 249b24ab676SJeff Bonwick #define BP_PHYSICAL_BIRTH(bp) \ 250b24ab676SJeff Bonwick ((bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth) 251b24ab676SJeff Bonwick 252b24ab676SJeff Bonwick #define BP_SET_BIRTH(bp, logical, physical) \ 253b24ab676SJeff Bonwick { \ 254b24ab676SJeff Bonwick (bp)->blk_birth = (logical); \ 255b24ab676SJeff Bonwick (bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \ 256b24ab676SJeff Bonwick } 257fa9e4066Sahrens 258fa9e4066Sahrens #define BP_GET_ASIZE(bp) \ 259fa9e4066Sahrens (DVA_GET_ASIZE(&(bp)->blk_dva[0]) + DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \ 26099653d4eSeschrock DVA_GET_ASIZE(&(bp)->blk_dva[2])) 26199653d4eSeschrock 26299653d4eSeschrock #define BP_GET_UCSIZE(bp) \ 26399653d4eSeschrock ((BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) ? \ 264*3f9d6ad7SLin Ling BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp)) 265fa9e4066Sahrens 26644cd46caSbillm #define BP_GET_NDVAS(bp) \ 26744cd46caSbillm (!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \ 26844cd46caSbillm !!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \ 26944cd46caSbillm !!DVA_GET_ASIZE(&(bp)->blk_dva[2])) 27044cd46caSbillm 27144cd46caSbillm #define BP_COUNT_GANG(bp) \ 27244cd46caSbillm (DVA_GET_GANG(&(bp)->blk_dva[0]) + \ 27344cd46caSbillm DVA_GET_GANG(&(bp)->blk_dva[1]) + \ 27444cd46caSbillm DVA_GET_GANG(&(bp)->blk_dva[2])) 27544cd46caSbillm 276fa9e4066Sahrens #define DVA_EQUAL(dva1, dva2) \ 277fa9e4066Sahrens ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \ 278fa9e4066Sahrens (dva1)->dva_word[0] == (dva2)->dva_word[0]) 279fa9e4066Sahrens 280b24ab676SJeff Bonwick #define BP_EQUAL(bp1, bp2) \ 281b24ab676SJeff Bonwick (BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \ 282b24ab676SJeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \ 283b24ab676SJeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \ 284b24ab676SJeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2])) 285b24ab676SJeff Bonwick 2866b4acc8bSahrens #define ZIO_CHECKSUM_EQUAL(zc1, zc2) \ 2876b4acc8bSahrens (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \ 2886b4acc8bSahrens ((zc1).zc_word[1] - (zc2).zc_word[1]) | \ 2896b4acc8bSahrens ((zc1).zc_word[2] - (zc2).zc_word[2]) | \ 2906b4acc8bSahrens ((zc1).zc_word[3] - (zc2).zc_word[3]))) 2916b4acc8bSahrens 292fa9e4066Sahrens #define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0) 293fa9e4066Sahrens 294fa9e4066Sahrens #define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3) \ 295fa9e4066Sahrens { \ 296fa9e4066Sahrens (zcp)->zc_word[0] = w0; \ 297fa9e4066Sahrens (zcp)->zc_word[1] = w1; \ 298fa9e4066Sahrens (zcp)->zc_word[2] = w2; \ 299fa9e4066Sahrens (zcp)->zc_word[3] = w3; \ 300fa9e4066Sahrens } 301fa9e4066Sahrens 302fa9e4066Sahrens #define BP_IDENTITY(bp) (&(bp)->blk_dva[0]) 30344cd46caSbillm #define BP_IS_GANG(bp) DVA_GET_GANG(BP_IDENTITY(bp)) 30444cd46caSbillm #define BP_IS_HOLE(bp) ((bp)->blk_birth == 0) 305fa9e4066Sahrens 3066e1f5caaSNeil Perrin /* BP_IS_RAIDZ(bp) assumes no block compression */ 3076e1f5caaSNeil Perrin #define BP_IS_RAIDZ(bp) (DVA_GET_ASIZE(&(bp)->blk_dva[0]) > \ 3086e1f5caaSNeil Perrin BP_GET_PSIZE(bp)) 3096e1f5caaSNeil Perrin 310e14bb325SJeff Bonwick #define BP_ZERO(bp) \ 311fa9e4066Sahrens { \ 312fa9e4066Sahrens (bp)->blk_dva[0].dva_word[0] = 0; \ 313fa9e4066Sahrens (bp)->blk_dva[0].dva_word[1] = 0; \ 314fa9e4066Sahrens (bp)->blk_dva[1].dva_word[0] = 0; \ 315fa9e4066Sahrens (bp)->blk_dva[1].dva_word[1] = 0; \ 316fa9e4066Sahrens (bp)->blk_dva[2].dva_word[0] = 0; \ 317fa9e4066Sahrens (bp)->blk_dva[2].dva_word[1] = 0; \ 318fa9e4066Sahrens (bp)->blk_prop = 0; \ 319fa9e4066Sahrens (bp)->blk_pad[0] = 0; \ 320fa9e4066Sahrens (bp)->blk_pad[1] = 0; \ 321b24ab676SJeff Bonwick (bp)->blk_phys_birth = 0; \ 322e14bb325SJeff Bonwick (bp)->blk_birth = 0; \ 323fa9e4066Sahrens (bp)->blk_fill = 0; \ 324fa9e4066Sahrens ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \ 325fa9e4066Sahrens } 326fa9e4066Sahrens 327fa9e4066Sahrens /* 328fa9e4066Sahrens * Note: the byteorder is either 0 or -1, both of which are palindromes. 329fa9e4066Sahrens * This simplifies the endianness handling a bit. 330fa9e4066Sahrens */ 331fa9e4066Sahrens #ifdef _BIG_ENDIAN 332fa9e4066Sahrens #define ZFS_HOST_BYTEORDER (0ULL) 333fa9e4066Sahrens #else 334fa9e4066Sahrens #define ZFS_HOST_BYTEORDER (-1ULL) 335fa9e4066Sahrens #endif 336fa9e4066Sahrens 337fa9e4066Sahrens #define BP_SHOULD_BYTESWAP(bp) (BP_GET_BYTEORDER(bp) != ZFS_HOST_BYTEORDER) 338fa9e4066Sahrens 33944cd46caSbillm #define BP_SPRINTF_LEN 320 340fbabab8fSmaybee 341b24ab676SJeff Bonwick /* 342b24ab676SJeff Bonwick * This macro allows code sharing between zfs, libzpool, and mdb. 343b24ab676SJeff Bonwick * 'func' is either snprintf() or mdb_snprintf(). 344b24ab676SJeff Bonwick * 'ws' (whitespace) can be ' ' for single-line format, '\n' for multi-line. 345b24ab676SJeff Bonwick */ 346b24ab676SJeff Bonwick #define SPRINTF_BLKPTR(func, ws, buf, bp, type, checksum, compress) \ 347b24ab676SJeff Bonwick { \ 348b24ab676SJeff Bonwick static const char *copyname[] = \ 349b24ab676SJeff Bonwick { "zero", "single", "double", "triple" }; \ 350b24ab676SJeff Bonwick int size = BP_SPRINTF_LEN; \ 351b24ab676SJeff Bonwick int len = 0; \ 352b24ab676SJeff Bonwick int copies = 0; \ 353b24ab676SJeff Bonwick \ 354b24ab676SJeff Bonwick if (bp == NULL) { \ 355b24ab676SJeff Bonwick len = func(buf + len, size - len, "<NULL>"); \ 356b24ab676SJeff Bonwick } else if (BP_IS_HOLE(bp)) { \ 357b24ab676SJeff Bonwick len = func(buf + len, size - len, "<hole>"); \ 358b24ab676SJeff Bonwick } else { \ 359b24ab676SJeff Bonwick for (int d = 0; d < BP_GET_NDVAS(bp); d++) { \ 360b24ab676SJeff Bonwick const dva_t *dva = &bp->blk_dva[d]; \ 361b24ab676SJeff Bonwick if (DVA_IS_VALID(dva)) \ 362b24ab676SJeff Bonwick copies++; \ 363b24ab676SJeff Bonwick len += func(buf + len, size - len, \ 364b24ab676SJeff Bonwick "DVA[%d]=<%llu:%llx:%llx>%c", d, \ 365b24ab676SJeff Bonwick (u_longlong_t)DVA_GET_VDEV(dva), \ 366b24ab676SJeff Bonwick (u_longlong_t)DVA_GET_OFFSET(dva), \ 367b24ab676SJeff Bonwick (u_longlong_t)DVA_GET_ASIZE(dva), \ 368b24ab676SJeff Bonwick ws); \ 369b24ab676SJeff Bonwick } \ 370b24ab676SJeff Bonwick if (BP_IS_GANG(bp) && \ 371b24ab676SJeff Bonwick DVA_GET_ASIZE(&bp->blk_dva[2]) <= \ 372b24ab676SJeff Bonwick DVA_GET_ASIZE(&bp->blk_dva[1]) / 2) \ 373b24ab676SJeff Bonwick copies--; \ 374b24ab676SJeff Bonwick len += func(buf + len, size - len, \ 375b24ab676SJeff Bonwick "[L%llu %s] %s %s %s %s %s %s%c" \ 376b24ab676SJeff Bonwick "size=%llxL/%llxP birth=%lluL/%lluP fill=%llu%c" \ 377b24ab676SJeff Bonwick "cksum=%llx:%llx:%llx:%llx", \ 378b24ab676SJeff Bonwick (u_longlong_t)BP_GET_LEVEL(bp), \ 379b24ab676SJeff Bonwick type, \ 380b24ab676SJeff Bonwick checksum, \ 381b24ab676SJeff Bonwick compress, \ 382b24ab676SJeff Bonwick BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", \ 383b24ab676SJeff Bonwick BP_IS_GANG(bp) ? "gang" : "contiguous", \ 384b24ab676SJeff Bonwick BP_GET_DEDUP(bp) ? "dedup" : "unique", \ 385b24ab676SJeff Bonwick copyname[copies], \ 386b24ab676SJeff Bonwick ws, \ 387b24ab676SJeff Bonwick (u_longlong_t)BP_GET_LSIZE(bp), \ 388b24ab676SJeff Bonwick (u_longlong_t)BP_GET_PSIZE(bp), \ 389b24ab676SJeff Bonwick (u_longlong_t)bp->blk_birth, \ 390b24ab676SJeff Bonwick (u_longlong_t)BP_PHYSICAL_BIRTH(bp), \ 391b24ab676SJeff Bonwick (u_longlong_t)bp->blk_fill, \ 392b24ab676SJeff Bonwick ws, \ 393b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[0], \ 394b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[1], \ 395b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[2], \ 396b24ab676SJeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[3]); \ 397b24ab676SJeff Bonwick } \ 398b24ab676SJeff Bonwick ASSERT(len < size); \ 399b24ab676SJeff Bonwick } 400b24ab676SJeff Bonwick 401fa9e4066Sahrens #include <sys/dmu.h> 402fa9e4066Sahrens 403ad23a2dbSjohansen #define BP_GET_BUFC_TYPE(bp) \ 404ad23a2dbSjohansen (((BP_GET_LEVEL(bp) > 0) || (dmu_ot[BP_GET_TYPE(bp)].ot_metadata)) ? \ 405ad23a2dbSjohansen ARC_BUFC_METADATA : ARC_BUFC_DATA); 406fa9e4066Sahrens 4071195e687SMark J Musante typedef enum spa_import_type { 4081195e687SMark J Musante SPA_IMPORT_EXISTING, 4091195e687SMark J Musante SPA_IMPORT_ASSEMBLE 4101195e687SMark J Musante } spa_import_type_t; 4111195e687SMark J Musante 412fa9e4066Sahrens /* state manipulation functions */ 413fa9e4066Sahrens extern int spa_open(const char *pool, spa_t **, void *tag); 414468c413aSTim Haley extern int spa_open_rewind(const char *pool, spa_t **, void *tag, 415468c413aSTim Haley nvlist_t *policy, nvlist_t **config); 416ea8dc4b6Seschrock extern int spa_get_stats(const char *pool, nvlist_t **config, 417ea8dc4b6Seschrock char *altroot, size_t buflen); 418990b4856Slling extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props, 4190a48a24eStimh const char *history_str, nvlist_t *zplprops); 420051aabe6Staylor extern int spa_import_rootpool(char *devpath, char *devid); 421990b4856Slling extern int spa_import(const char *pool, nvlist_t *config, nvlist_t *props); 4226809eb4eSEric Schrock extern int spa_import_verbatim(const char *, nvlist_t *, nvlist_t *); 423fa9e4066Sahrens extern nvlist_t *spa_tryimport(nvlist_t *tryconfig); 424fa9e4066Sahrens extern int spa_destroy(char *pool); 425394ab0cbSGeorge Wilson extern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force, 426394ab0cbSGeorge Wilson boolean_t hardforce); 427ea8dc4b6Seschrock extern int spa_reset(char *pool); 428ea8dc4b6Seschrock extern void spa_async_request(spa_t *spa, int flag); 429088f3894Sahrens extern void spa_async_unrequest(spa_t *spa, int flag); 430ea8dc4b6Seschrock extern void spa_async_suspend(spa_t *spa); 431ea8dc4b6Seschrock extern void spa_async_resume(spa_t *spa); 432ea8dc4b6Seschrock extern spa_t *spa_inject_addref(char *pool); 433ea8dc4b6Seschrock extern void spa_inject_delref(spa_t *spa); 434*3f9d6ad7SLin Ling extern void spa_scan_stat_init(spa_t *spa); 435*3f9d6ad7SLin Ling extern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps); 436ea8dc4b6Seschrock 437e14bb325SJeff Bonwick #define SPA_ASYNC_CONFIG_UPDATE 0x01 438e14bb325SJeff Bonwick #define SPA_ASYNC_REMOVE 0x02 439e14bb325SJeff Bonwick #define SPA_ASYNC_PROBE 0x04 440e14bb325SJeff Bonwick #define SPA_ASYNC_RESILVER_DONE 0x08 441e14bb325SJeff Bonwick #define SPA_ASYNC_RESILVER 0x10 442573ca77eSGeorge Wilson #define SPA_ASYNC_AUTOEXPAND 0x20 443*3f9d6ad7SLin Ling #define SPA_ASYNC_REMOVE_DONE 0x40 444*3f9d6ad7SLin Ling #define SPA_ASYNC_REMOVE_STOP 0x80 445*3f9d6ad7SLin Ling 446*3f9d6ad7SLin Ling /* 447*3f9d6ad7SLin Ling * Controls the behavior of spa_vdev_remove(). 448*3f9d6ad7SLin Ling */ 449*3f9d6ad7SLin Ling #define SPA_REMOVE_UNSPARE 0x01 450*3f9d6ad7SLin Ling #define SPA_REMOVE_DONE 0x02 451fa9e4066Sahrens 452fa9e4066Sahrens /* device manipulation */ 453fa9e4066Sahrens extern int spa_vdev_add(spa_t *spa, nvlist_t *nvroot); 454ea8dc4b6Seschrock extern int spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, 455fa9e4066Sahrens int replacing); 4568ad4d6ddSJeff Bonwick extern int spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, 4578ad4d6ddSJeff Bonwick int replace_done); 45899653d4eSeschrock extern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare); 459*3f9d6ad7SLin Ling extern boolean_t spa_vdev_remove_active(spa_t *spa); 460c67d9675Seschrock extern int spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath); 4616809eb4eSEric Schrock extern int spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru); 4621195e687SMark J Musante extern int spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config, 4631195e687SMark J Musante nvlist_t *props, boolean_t exp); 464fa9e4066Sahrens 46599653d4eSeschrock /* spare state (which is global across all pools) */ 46639c23413Seschrock extern void spa_spare_add(vdev_t *vd); 46739c23413Seschrock extern void spa_spare_remove(vdev_t *vd); 46889a89ebfSlling extern boolean_t spa_spare_exists(uint64_t guid, uint64_t *pool, int *refcnt); 46939c23413Seschrock extern void spa_spare_activate(vdev_t *vd); 47099653d4eSeschrock 471fa94a07fSbrendan /* L2ARC state (which is global across all pools) */ 472fa94a07fSbrendan extern void spa_l2cache_add(vdev_t *vd); 473fa94a07fSbrendan extern void spa_l2cache_remove(vdev_t *vd); 474fa94a07fSbrendan extern boolean_t spa_l2cache_exists(uint64_t guid, uint64_t *pool); 475fa94a07fSbrendan extern void spa_l2cache_activate(vdev_t *vd); 476fa94a07fSbrendan extern void spa_l2cache_drop(spa_t *spa); 477fa94a07fSbrendan 478*3f9d6ad7SLin Ling /* scanning */ 479*3f9d6ad7SLin Ling extern int spa_scan(spa_t *spa, pool_scan_func_t func); 480*3f9d6ad7SLin Ling extern int spa_scan_stop(spa_t *spa); 481fa9e4066Sahrens 482fa9e4066Sahrens /* spa syncing */ 483fa9e4066Sahrens extern void spa_sync(spa_t *spa, uint64_t txg); /* only for DMU use */ 484fa9e4066Sahrens extern void spa_sync_allpools(void); 485fa9e4066Sahrens 486*3f9d6ad7SLin Ling /* 487*3f9d6ad7SLin Ling * DEFERRED_FREE must be large enough that regular blocks are not 488*3f9d6ad7SLin Ling * deferred. XXX so can't we change it back to 1? 489*3f9d6ad7SLin Ling */ 490*3f9d6ad7SLin Ling #define SYNC_PASS_DEFERRED_FREE 2 /* defer frees after this pass */ 491b24ab676SJeff Bonwick #define SYNC_PASS_DONT_COMPRESS 4 /* don't compress after this pass */ 492b24ab676SJeff Bonwick #define SYNC_PASS_REWRITE 1 /* rewrite new bps after this pass */ 493b24ab676SJeff Bonwick 4943a737e0dSbrendan /* spa namespace global mutex */ 4953a737e0dSbrendan extern kmutex_t spa_namespace_lock; 4963a737e0dSbrendan 497fa9e4066Sahrens /* 498fa9e4066Sahrens * SPA configuration functions in spa_config.c 499fa9e4066Sahrens */ 5000373e76bSbonwick 5010373e76bSbonwick #define SPA_CONFIG_UPDATE_POOL 0 5020373e76bSbonwick #define SPA_CONFIG_UPDATE_VDEVS 1 5030373e76bSbonwick 504c5904d13Seschrock extern void spa_config_sync(spa_t *, boolean_t, boolean_t); 505fa9e4066Sahrens extern void spa_config_load(void); 506fa9e4066Sahrens extern nvlist_t *spa_all_configs(uint64_t *); 507fa9e4066Sahrens extern void spa_config_set(spa_t *spa, nvlist_t *config); 508fa9e4066Sahrens extern nvlist_t *spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, 509fa9e4066Sahrens int getstats); 5100373e76bSbonwick extern void spa_config_update(spa_t *spa, int what); 511fa9e4066Sahrens 512fa9e4066Sahrens /* 513fa9e4066Sahrens * Miscellaneous SPA routines in spa_misc.c 514fa9e4066Sahrens */ 515fa9e4066Sahrens 516fa9e4066Sahrens /* Namespace manipulation */ 517fa9e4066Sahrens extern spa_t *spa_lookup(const char *name); 518468c413aSTim Haley extern spa_t *spa_add(const char *name, nvlist_t *config, const char *altroot); 519fa9e4066Sahrens extern void spa_remove(spa_t *spa); 520fa9e4066Sahrens extern spa_t *spa_next(spa_t *prev); 521fa9e4066Sahrens 522fa9e4066Sahrens /* Refcount functions */ 523fa9e4066Sahrens extern void spa_open_ref(spa_t *spa, void *tag); 524fa9e4066Sahrens extern void spa_close(spa_t *spa, void *tag); 525fa9e4066Sahrens extern boolean_t spa_refcount_zero(spa_t *spa); 526fa9e4066Sahrens 5278f18d1faSGeorge Wilson #define SCL_NONE 0x00 528e14bb325SJeff Bonwick #define SCL_CONFIG 0x01 529e14bb325SJeff Bonwick #define SCL_STATE 0x02 530e14bb325SJeff Bonwick #define SCL_L2ARC 0x04 /* hack until L2ARC 2.0 */ 531e14bb325SJeff Bonwick #define SCL_ALLOC 0x08 532e14bb325SJeff Bonwick #define SCL_ZIO 0x10 533e14bb325SJeff Bonwick #define SCL_FREE 0x20 534e14bb325SJeff Bonwick #define SCL_VDEV 0x40 535e14bb325SJeff Bonwick #define SCL_LOCKS 7 536e14bb325SJeff Bonwick #define SCL_ALL ((1 << SCL_LOCKS) - 1) 537e14bb325SJeff Bonwick #define SCL_STATE_ALL (SCL_STATE | SCL_L2ARC | SCL_ZIO) 538e14bb325SJeff Bonwick 539e14bb325SJeff Bonwick /* Pool configuration locks */ 540e14bb325SJeff Bonwick extern int spa_config_tryenter(spa_t *spa, int locks, void *tag, krw_t rw); 541e14bb325SJeff Bonwick extern void spa_config_enter(spa_t *spa, int locks, void *tag, krw_t rw); 542e14bb325SJeff Bonwick extern void spa_config_exit(spa_t *spa, int locks, void *tag); 543e14bb325SJeff Bonwick extern int spa_config_held(spa_t *spa, int locks, krw_t rw); 544fa9e4066Sahrens 545fa9e4066Sahrens /* Pool vdev add/remove lock */ 546fa9e4066Sahrens extern uint64_t spa_vdev_enter(spa_t *spa); 54788ecc943SGeorge Wilson extern uint64_t spa_vdev_config_enter(spa_t *spa); 54888ecc943SGeorge Wilson extern void spa_vdev_config_exit(spa_t *spa, vdev_t *vd, uint64_t txg, 54988ecc943SGeorge Wilson int error, char *tag); 550fa9e4066Sahrens extern int spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error); 551fa9e4066Sahrens 552e14bb325SJeff Bonwick /* Pool vdev state change lock */ 5538f18d1faSGeorge Wilson extern void spa_vdev_state_enter(spa_t *spa, int oplock); 554e14bb325SJeff Bonwick extern int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error); 555e14bb325SJeff Bonwick 556b24ab676SJeff Bonwick /* Log state */ 557b24ab676SJeff Bonwick typedef enum spa_log_state { 558b24ab676SJeff Bonwick SPA_LOG_UNKNOWN = 0, /* unknown log state */ 559b24ab676SJeff Bonwick SPA_LOG_MISSING, /* missing log(s) */ 560b24ab676SJeff Bonwick SPA_LOG_CLEAR, /* clear the log(s) */ 561b24ab676SJeff Bonwick SPA_LOG_GOOD, /* log(s) are good */ 562b24ab676SJeff Bonwick } spa_log_state_t; 563b24ab676SJeff Bonwick 564b24ab676SJeff Bonwick extern spa_log_state_t spa_get_log_state(spa_t *spa); 565b24ab676SJeff Bonwick extern void spa_set_log_state(spa_t *spa, spa_log_state_t state); 5661195e687SMark J Musante extern int spa_offline_log(spa_t *spa); 567b24ab676SJeff Bonwick 568b24ab676SJeff Bonwick /* Log claim callback */ 569b24ab676SJeff Bonwick extern void spa_claim_notify(zio_t *zio); 570b24ab676SJeff Bonwick 571fa9e4066Sahrens /* Accessor functions */ 57288b7b0f2SMatthew Ahrens extern boolean_t spa_shutting_down(spa_t *spa); 573fa9e4066Sahrens extern struct dsl_pool *spa_get_dsl(spa_t *spa); 574fa9e4066Sahrens extern blkptr_t *spa_get_rootblkptr(spa_t *spa); 575fa9e4066Sahrens extern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp); 576fa9e4066Sahrens extern void spa_altroot(spa_t *, char *, size_t); 577fa9e4066Sahrens extern int spa_sync_pass(spa_t *spa); 578fa9e4066Sahrens extern char *spa_name(spa_t *spa); 579fa9e4066Sahrens extern uint64_t spa_guid(spa_t *spa); 580fa9e4066Sahrens extern uint64_t spa_last_synced_txg(spa_t *spa); 581fa9e4066Sahrens extern uint64_t spa_first_txg(spa_t *spa); 582b24ab676SJeff Bonwick extern uint64_t spa_syncing_txg(spa_t *spa); 58399653d4eSeschrock extern uint64_t spa_version(spa_t *spa); 58488b7b0f2SMatthew Ahrens extern pool_state_t spa_state(spa_t *spa); 585b16da2e2SGeorge Wilson extern spa_load_state_t spa_load_state(spa_t *spa); 586fa9e4066Sahrens extern uint64_t spa_freeze_txg(spa_t *spa); 587fa9e4066Sahrens extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize); 588485bbbf5SGeorge Wilson extern uint64_t spa_get_dspace(spa_t *spa); 589485bbbf5SGeorge Wilson extern void spa_update_dspace(spa_t *spa); 59044cd46caSbillm extern uint64_t spa_version(spa_t *spa); 591b24ab676SJeff Bonwick extern boolean_t spa_deflate(spa_t *spa); 592b24ab676SJeff Bonwick extern metaslab_class_t *spa_normal_class(spa_t *spa); 593b24ab676SJeff Bonwick extern metaslab_class_t *spa_log_class(spa_t *spa); 59444cd46caSbillm extern int spa_max_replication(spa_t *spa); 595*3f9d6ad7SLin Ling extern int spa_prev_software_version(spa_t *spa); 596fa9e4066Sahrens extern int spa_busy(void); 5970a4e9518Sgw extern uint8_t spa_get_failmode(spa_t *spa); 598e14bb325SJeff Bonwick extern boolean_t spa_suspended(spa_t *spa); 599b24ab676SJeff Bonwick extern uint64_t spa_bootfs(spa_t *spa); 600b24ab676SJeff Bonwick extern uint64_t spa_delegation(spa_t *spa); 601b24ab676SJeff Bonwick extern objset_t *spa_meta_objset(spa_t *spa); 602b24ab676SJeff Bonwick extern enum zio_checksum spa_dedup_checksum(spa_t *spa); 603fa9e4066Sahrens 604fa9e4066Sahrens /* Miscellaneous support routines */ 605fa9e4066Sahrens extern int spa_rename(const char *oldname, const char *newname); 606fa9e4066Sahrens extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid); 607fa9e4066Sahrens extern char *spa_strdup(const char *); 608fa9e4066Sahrens extern void spa_strfree(char *); 609fa9e4066Sahrens extern uint64_t spa_get_random(uint64_t range); 6101195e687SMark J Musante extern uint64_t spa_generate_guid(spa_t *spa); 611b24ab676SJeff Bonwick extern void sprintf_blkptr(char *buf, const blkptr_t *bp); 612fa9e4066Sahrens extern void spa_freeze(spa_t *spa); 613990b4856Slling extern void spa_upgrade(spa_t *spa, uint64_t version); 614fa9e4066Sahrens extern void spa_evict_all(void); 615c5904d13Seschrock extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid, 616c5904d13Seschrock boolean_t l2cache); 61799653d4eSeschrock extern boolean_t spa_has_spare(spa_t *, uint64_t guid); 618b24ab676SJeff Bonwick extern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva); 619b24ab676SJeff Bonwick extern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp); 620b24ab676SJeff Bonwick extern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp); 6216ce0521aSperrin extern boolean_t spa_has_slogs(spa_t *spa); 622bf82a41bSeschrock extern boolean_t spa_is_root(spa_t *spa); 6238ad4d6ddSJeff Bonwick extern boolean_t spa_writeable(spa_t *spa); 624468c413aSTim Haley extern void spa_rewind_data_to_nvlist(spa_t *spa, nvlist_t *to); 625468c413aSTim Haley 6268ad4d6ddSJeff Bonwick extern int spa_mode(spa_t *spa); 627ca45db41SChris Kirby extern uint64_t strtonum(const char *str, char **nptr); 628ea8dc4b6Seschrock 62906eeb2adSek /* history logging */ 630ecd6cf80Smarks typedef enum history_log_type { 631ecd6cf80Smarks LOG_CMD_POOL_CREATE, 632ecd6cf80Smarks LOG_CMD_NORMAL, 633ecd6cf80Smarks LOG_INTERNAL 634ecd6cf80Smarks } history_log_type_t; 635ecd6cf80Smarks 636ecd6cf80Smarks typedef struct history_arg { 637495807d7SMatthew Ahrens char *ha_history_str; 638ecd6cf80Smarks history_log_type_t ha_log_type; 639ecd6cf80Smarks history_internal_events_t ha_event; 640495807d7SMatthew Ahrens char *ha_zone; 641495807d7SMatthew Ahrens uid_t ha_uid; 642ecd6cf80Smarks } history_arg_t; 643ecd6cf80Smarks 644ecd6cf80Smarks extern char *spa_his_ievent_table[]; 645ecd6cf80Smarks 64606eeb2adSek extern void spa_history_create_obj(spa_t *spa, dmu_tx_t *tx); 64706eeb2adSek extern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read, 64806eeb2adSek char *his_buf); 64906eeb2adSek extern int spa_history_log(spa_t *spa, const char *his_buf, 650ecd6cf80Smarks history_log_type_t what); 651*3f9d6ad7SLin Ling extern void spa_history_log_internal(history_internal_events_t event, 652*3f9d6ad7SLin Ling spa_t *spa, dmu_tx_t *tx, const char *fmt, ...); 653c8e1f6d2SMark J Musante extern void spa_history_log_version(spa_t *spa, history_internal_events_t evt); 65406eeb2adSek 655ea8dc4b6Seschrock /* error handling */ 656ea8dc4b6Seschrock struct zbookmark; 657b24ab676SJeff Bonwick extern void spa_log_error(spa_t *spa, zio_t *zio); 658ea8dc4b6Seschrock extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd, 659b24ab676SJeff Bonwick zio_t *zio, uint64_t stateoroffset, uint64_t length); 6603d7072f8Seschrock extern void zfs_post_remove(spa_t *spa, vdev_t *vd); 661069f55e2SEric Schrock extern void zfs_post_state_change(spa_t *spa, vdev_t *vd); 6623d7072f8Seschrock extern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd); 663ea8dc4b6Seschrock extern uint64_t spa_get_errlog_size(spa_t *spa); 664ea8dc4b6Seschrock extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count); 665ea8dc4b6Seschrock extern void spa_errlog_rotate(spa_t *spa); 666ea8dc4b6Seschrock extern void spa_errlog_drain(spa_t *spa); 667ea8dc4b6Seschrock extern void spa_errlog_sync(spa_t *spa, uint64_t txg); 668ea8dc4b6Seschrock extern void spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub); 669fa9e4066Sahrens 67087db74c1Sek /* vdev cache */ 67187db74c1Sek extern void vdev_cache_stat_init(void); 67287db74c1Sek extern void vdev_cache_stat_fini(void); 67387db74c1Sek 674fa9e4066Sahrens /* Initialization and termination */ 675fa9e4066Sahrens extern void spa_init(int flags); 676fa9e4066Sahrens extern void spa_fini(void); 677e7cbe64fSgw extern void spa_boot_init(); 678fa9e4066Sahrens 679b1b8ab34Slling /* properties */ 680990b4856Slling extern int spa_prop_set(spa_t *spa, nvlist_t *nvp); 681990b4856Slling extern int spa_prop_get(spa_t *spa, nvlist_t **nvp); 682990b4856Slling extern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx); 683379c004dSEric Schrock extern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t); 684b1b8ab34Slling 6853d7072f8Seschrock /* asynchronous event notification */ 6863d7072f8Seschrock extern void spa_event_notify(spa_t *spa, vdev_t *vdev, const char *name); 6873d7072f8Seschrock 688fa9e4066Sahrens #ifdef ZFS_DEBUG 689c0a81264Sek #define dprintf_bp(bp, fmt, ...) do { \ 690c0a81264Sek if (zfs_flags & ZFS_DEBUG_DPRINTF) { \ 691c0a81264Sek char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \ 692b24ab676SJeff Bonwick sprintf_blkptr(__blkbuf, (bp)); \ 693c0a81264Sek dprintf(fmt " %s\n", __VA_ARGS__, __blkbuf); \ 694c0a81264Sek kmem_free(__blkbuf, BP_SPRINTF_LEN); \ 695fa9e4066Sahrens } \ 696fa9e4066Sahrens _NOTE(CONSTCOND) } while (0) 697fa9e4066Sahrens #else 698fa9e4066Sahrens #define dprintf_bp(bp, fmt, ...) 699fa9e4066Sahrens #endif 700fa9e4066Sahrens 7018ad4d6ddSJeff Bonwick extern int spa_mode_global; /* mode, e.g. FREAD | FWRITE */ 702fa9e4066Sahrens 703fa9e4066Sahrens #ifdef __cplusplus 704fa9e4066Sahrens } 705fa9e4066Sahrens #endif 706fa9e4066Sahrens 707fa9e4066Sahrens #endif /* _SYS_SPA_H */ 708