fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * or http://www.opensolaris.org/os/licensing.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
7802d7bf98dec568dadf72286893b1fe5abd8602Matthew Ahrens * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
e9103aaee0c546d4644791198c54abb03c89969eGarrett D'Amore * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbs * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens * Copyright 2013 Saso Kiselkov. All rights reserved.
c3d26abc9ee97b4f60233556aadeb57e0bd30bb9Matthew Ahrens * Copyright (c) 2014 Integros [integros.com]
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifndef _SYS_SPA_H
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define _SYS_SPA_H
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/avl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/zfs_context.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/nvpair.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/sysmacros.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/types.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/fs/zfs.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef __cplusplus
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern "C" {
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Forward references that lots of things need.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct spa spa_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct vdev vdev_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct metaslab metaslab_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct metaslab_group metaslab_group_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct metaslab_class metaslab_class_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct zio zio_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct zilog zilog_t;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendantypedef struct spa_aux_vdev spa_aux_vdev_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct ddt ddt_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct ddt_entry ddt_entry_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrensstruct dsl_pool;
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensstruct dsl_dataset;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * General-purpose 32-bit and 64-bit bitfield encodings.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len))
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len))
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low))
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low))
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF32_GET(x, low, len) BF32_DECODE(x, low, len)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF64_GET(x, low, len) BF64_DECODE(x, low, len)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define BF32_SET(x, low, len, val) do { \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT3U(val, <, 1U << (len)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT3U(low + len, <=, 32); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman (x) ^= BF32_ENCODE((x >> low) ^ (val), low, len); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman_NOTE(CONSTCOND) } while (0)
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define BF64_SET(x, low, len, val) do { \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT3U(val, <, 1ULL << (len)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT3U(low + len, <=, 64); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman_NOTE(CONSTCOND) } while (0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF32_GET_SB(x, low, len, shift, bias) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens ((BF32_GET(x, low, len) + (bias)) << (shift))
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BF64_GET_SB(x, low, len, shift, bias) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens ((BF64_GET(x, low, len) + (bias)) << (shift))
fa9e4066f08beec538e775443c5be79dd423fcabahrens
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define BF32_SET_SB(x, low, len, shift, bias, val) do { \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT(IS_P2ALIGNED(val, 1U << shift)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT3S((val) >> (shift), >=, bias); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman BF32_SET(x, low, len, ((val) >> (shift)) - (bias)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman_NOTE(CONSTCOND) } while (0)
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define BF64_SET_SB(x, low, len, shift, bias, val) do { \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT(IS_P2ALIGNED(val, 1ULL << shift)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman ASSERT3S((val) >> (shift), >=, bias); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman BF64_SET(x, low, len, ((val) >> (shift)) - (bias)); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman_NOTE(CONSTCOND) } while (0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * We currently support block sizes from 512 bytes to 16MB.
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * The benefits of larger blocks, and thus larger IO, need to be weighed
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * against the cost of COWing a giant block to modify one byte, and the
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * large latency of reading or writing a large block.
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens *
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * Note that although blocks up to 16MB are supported, the recordsize
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * property can not be set larger than zfs_max_recordsize (default 1MB).
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * See the comment near zfs_max_recordsize in dsl_dataset.c for details.
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens *
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * Note that although the LSIZE field of the blkptr_t can store sizes up
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * to 32MB, the dnode's dn_datablkszsec can only store sizes up to
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens * 32MB - 512 bytes. Therefore, we limit SPA_MAXBLOCKSIZE to 16MB.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_MINBLOCKSHIFT 9
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens#define SPA_OLD_MAXBLOCKSHIFT 17
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens#define SPA_MAXBLOCKSHIFT 24
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens#define SPA_OLD_MAXBLOCKSIZE (1ULL << SPA_OLD_MAXBLOCKSHIFT)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
f7991ba49ef5aba7b9cb3c356205d10b753dbbc8Tim Haley/*
f7991ba49ef5aba7b9cb3c356205d10b753dbbc8Tim Haley * Size of block to hold the configuration data (a packed nvlist)
f7991ba49ef5aba7b9cb3c356205d10b753dbbc8Tim Haley */
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden#define SPA_CONFIG_BLOCKSIZE (1ULL << 14)
f7991ba49ef5aba7b9cb3c356205d10b753dbbc8Tim Haley
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The ASIZE encoding should be at least 64 times larger (6 more bits)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * to support up to 4-way RAID-Z mirror mode with worst-case gang block
fa9e4066f08beec538e775443c5be79dd423fcabahrens * overhead, three DVAs per bp, plus one more bit in case we do anything
fa9e4066f08beec538e775443c5be79dd423fcabahrens * else that expands the ASIZE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2George Wilson#define SPA_COMPRESSBITS 7
dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2George Wilson
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * All SPA data is represented by 128-bit data virtual addresses (DVAs).
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The members of the dva_t should be considered opaque outside the SPA.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct dva {
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t dva_word[2];
fa9e4066f08beec538e775443c5be79dd423fcabahrens} dva_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Each block has a 256-bit checksum -- strong enough for cryptographic hashes.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct zio_cksum {
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t zc_word[4];
fa9e4066f08beec538e775443c5be79dd423fcabahrens} zio_cksum_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens/*
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens * Some checksums/hashes need a 256-bit initialization salt. This salt is kept
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens * secret and is suitable for use in MAC algorithms as the key.
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens */
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrenstypedef struct zio_cksum_salt {
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens uint8_t zcs_bytes[32];
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens} zio_cksum_salt_t;
45818ee124adeaaf947698996b4f4c722afc6d1fMatthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Each block is described by its DVAs, time of birth, checksum, etc.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The word-by-word, bit-by-bit layout of the blkptr is as follows:
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 64 56 48 40 32 24 16 8 0
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 0 | vdev1 | GRID | ASIZE |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 1 |G| offset1 |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 2 | vdev2 | GRID | ASIZE |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 3 |G| offset2 |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 4 | vdev3 | GRID | ASIZE |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 5 |G| offset3 |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 6 |BDX|lvl| type | cksum |E| comp| PSIZE | LSIZE |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 7 | padding |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 8 | padding |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * 9 | physical birth txg |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * a | logical birth txg |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * b | fill count |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * c | checksum[0] |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * d | checksum[1] |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * e | checksum[2] |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens * f | checksum[3] |
fa9e4066f08beec538e775443c5be79dd423fcabahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Legend:
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * vdev virtual device ID
fa9e4066f08beec538e775443c5be79dd423fcabahrens * offset offset into virtual device
fa9e4066f08beec538e775443c5be79dd423fcabahrens * LSIZE logical size
fa9e4066f08beec538e775443c5be79dd423fcabahrens * PSIZE physical size (after compression)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * ASIZE allocated size (including RAID-Z parity and gang block headers)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * GRID RAID-Z layout information (reserved for future use)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * cksum checksum function
fa9e4066f08beec538e775443c5be79dd423fcabahrens * comp compression function
fa9e4066f08beec538e775443c5be79dd423fcabahrens * G gang block indicator
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * B byteorder (endianness)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * D dedup
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * X encryption (on version 30, which is not supported)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * E blkptr_t contains embedded data (see below)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * lvl level of indirection
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * type DMU object type
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * phys birth txg of block allocation; zero if same as logical birth txg
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * log. birth transaction group in which the block was logically born
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fill count number of non-zero blocks under this bp
fa9e4066f08beec538e775443c5be79dd423fcabahrens * checksum[4] 256-bit checksum of the data this bp describes
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens/*
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * "Embedded" blkptr_t's don't actually point to a block, instead they
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * have a data payload embedded in the blkptr_t itself. See the comment
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * in blkptr.c for more details.
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens *
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * The blkptr_t is laid out as follows:
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens *
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 64 56 48 40 32 24 16 8 0
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 0 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 1 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 2 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 3 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 4 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 5 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 6 |BDX|lvl| type | etype |E| comp| PSIZE| LSIZE |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 7 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 8 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * 9 | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * a | logical birth txg |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * b | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * c | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * d | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * e | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * f | payload |
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * +-------+-------+-------+-------+-------+-------+-------+-------+
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens *
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * Legend:
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens *
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * payload contains the embedded data
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * B (byteorder) byteorder (endianness)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * D (dedup) padding (set to zero)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * X encryption (set to zero; see above)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * E (embedded) set to one
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * lvl indirection level
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * type DMU object type
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * etype how to interpret embedded data (BP_EMBEDDED_TYPE_*)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * comp compression function of payload
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * PSIZE size of payload after compression, in bytes
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * LSIZE logical size of payload, in bytes
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * note that 25 bits is enough to store the largest
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * "normal" BP's LSIZE (2^16 * 2^9) in bytes
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * log. birth transaction group in which the block was logically born
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens *
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * Note that LSIZE and PSIZE are stored in bytes, whereas for non-embedded
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * bp's they are stored in units of SPA_MINBLOCKSHIFT.
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * Generally, the generic BP_GET_*() macros can be used on embedded BP's.
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * The B, D, X, lvl, type, and comp fields are stored the same as with normal
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * BP's so the BP_SET_* macros can be used with them. etype, PSIZE, LSIZE must
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * be set with the BPE_SET_* macros. BP_SET_EMBEDDED() should be called before
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * other macros, as they assert that they are only used on BP's of the correct
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens * "embedded-ness".
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens */
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_GET_ETYPE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (ASSERT(BP_IS_EMBEDDED(bp)), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_GET((bp)->blk_prop, 40, 8))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_SET_ETYPE(bp, t) do { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(BP_IS_EMBEDDED(bp)); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_SET((bp)->blk_prop, 40, 8, t); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens_NOTE(CONSTCOND) } while (0)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_GET_LSIZE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (ASSERT(BP_IS_EMBEDDED(bp)), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 0, 25, 0, 1))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_SET_LSIZE(bp, x) do { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(BP_IS_EMBEDDED(bp)); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_SET_SB((bp)->blk_prop, 0, 25, 0, 1, x); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens_NOTE(CONSTCOND) } while (0)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_GET_PSIZE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (ASSERT(BP_IS_EMBEDDED(bp)), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 25, 7, 0, 1))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_SET_PSIZE(bp, x) do { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(BP_IS_EMBEDDED(bp)); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_SET_SB((bp)->blk_prop, 25, 7, 0, 1, x); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens_NOTE(CONSTCOND) } while (0)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrenstypedef enum bp_embedded_type {
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BP_EMBEDDED_TYPE_DATA,
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BP_EMBEDDED_TYPE_RESERVED, /* Reserved for an unintegrated feature. */
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens NUM_BP_EMBEDDED_TYPES = BP_EMBEDDED_TYPE_RESERVED
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens} bp_embedded_type_t;
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_NUM_WORDS 14
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_PAYLOAD_SIZE (BPE_NUM_WORDS * sizeof (uint64_t))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BPE_IS_PAYLOADWORD(bp, wp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ((wp) != &(bp)->blk_prop && (wp) != &(bp)->blk_birth)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman/*
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * A block is a hole when it has either 1) never been written to, or
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * 2) is zero-filled. In both cases, ZFS can return all zeroes for all reads
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * without physically allocating disk space. Holes are represented in the
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * blkptr_t structure by zeroed blk_dva. Correct checking for holes is
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * done through the BP_IS_HOLE macro. For holes, the logical size, level,
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * DMU object type, and birth times are all also stored for holes that
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman * were written to at some point (i.e. were punched after having been filled).
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct blkptr {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dva_t blk_dva[SPA_DVAS_PER_BP]; /* Data Virtual Addresses */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t blk_prop; /* size, compression, type, etc */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t blk_pad[2]; /* Extra space for the future */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t blk_phys_birth; /* txg when block was allocated */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t blk_birth; /* transaction group at birth */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t blk_fill; /* fill count */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zio_cksum_t blk_cksum; /* 256-bit checksum */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick} blkptr_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Macros to get and set fields in a bp or DVA.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_GET_ASIZE(dva) \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman BF64_GET_SB((dva)->dva_word[0], 0, SPA_ASIZEBITS, SPA_MINBLOCKSHIFT, 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_SET_ASIZE(dva, x) \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman BF64_SET_SB((dva)->dva_word[0], 0, SPA_ASIZEBITS, \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman SPA_MINBLOCKSHIFT, 0, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, 32)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_SET_VDEV(dva, x) BF64_SET((dva)->dva_word[0], 32, 32, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_GET_OFFSET(dva) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens BF64_GET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_SET_OFFSET(dva, x) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens BF64_SET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_GET_GANG(dva) BF64_GET((dva)->dva_word[1], 63, 1)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BP_GET_LSIZE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BPE_GET_ETYPE(bp) == BP_EMBEDDED_TYPE_DATA ? BPE_GET_LSIZE(bp) : 0): \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_SET_LSIZE(bp, x) do { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_SET_SB((bp)->blk_prop, \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens 0, SPA_LSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens_NOTE(CONSTCOND) } while (0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BP_GET_PSIZE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_GET_SB((bp)->blk_prop, 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_SET_PSIZE(bp, x) do { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_SET_SB((bp)->blk_prop, \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens 16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens_NOTE(CONSTCOND) } while (0)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2George Wilson#define BP_GET_COMPRESS(bp) \
dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2George Wilson BF64_GET((bp)->blk_prop, 32, SPA_COMPRESSBITS)
dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2George Wilson#define BP_SET_COMPRESS(bp, x) \
dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2George Wilson BF64_SET((bp)->blk_prop, 32, SPA_COMPRESSBITS, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_IS_EMBEDDED(bp) BF64_GET((bp)->blk_prop, 39, 1)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_SET_EMBEDDED(bp, x) BF64_SET((bp)->blk_prop, 39, 1, x)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_GET_CHECKSUM(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? ZIO_CHECKSUM_OFF : \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_GET((bp)->blk_prop, 40, 8))
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_SET_CHECKSUM(bp, x) do { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens BF64_SET((bp)->blk_prop, 40, 8, x); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens_NOTE(CONSTCOND) } while (0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define BP_GET_BYTEORDER(bp) BF64_GET((bp)->blk_prop, 63, 1)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_PHYSICAL_BIRTH(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_SET_BIRTH(bp, logical, physical) \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick{ \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens ASSERT(!BP_IS_EMBEDDED(bp)); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (bp)->blk_birth = (logical); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_GET_FILL(bp) (BP_IS_EMBEDDED(bp) ? 1 : (bp)->blk_fill)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BP_GET_ASIZE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens DVA_GET_ASIZE(&(bp)->blk_dva[2]))
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock#define BP_GET_UCSIZE(bp) \
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden ((BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) ? \
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp))
fa9e4066f08beec538e775443c5be79dd423fcabahrens
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm#define BP_GET_NDVAS(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens !!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm !!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm !!DVA_GET_ASIZE(&(bp)->blk_dva[2]))
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm#define BP_COUNT_GANG(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? 0 : \
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm (DVA_GET_GANG(&(bp)->blk_dva[0]) + \
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm DVA_GET_GANG(&(bp)->blk_dva[1]) + \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens DVA_GET_GANG(&(bp)->blk_dva[2])))
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_EQUAL(dva1, dva2) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (dva1)->dva_word[0] == (dva2)->dva_word[0])
fa9e4066f08beec538e775443c5be79dd423fcabahrens
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define BP_EQUAL(bp1, bp2) \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (bp1)->blk_birth == (bp2)->blk_birth && \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2]))
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
6b4acc8bd9d480535a4d057e291dc7c049f664d9ahrens#define ZIO_CHECKSUM_EQUAL(zc1, zc2) \
6b4acc8bd9d480535a4d057e291dc7c049f664d9ahrens (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \
6b4acc8bd9d480535a4d057e291dc7c049f664d9ahrens ((zc1).zc_word[1] - (zc2).zc_word[1]) | \
6b4acc8bd9d480535a4d057e291dc7c049f664d9ahrens ((zc1).zc_word[2] - (zc2).zc_word[2]) | \
6b4acc8bd9d480535a4d057e291dc7c049f664d9ahrens ((zc1).zc_word[3] - (zc2).zc_word[3])))
6b4acc8bd9d480535a4d057e291dc7c049f664d9ahrens
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens#define ZIO_CHECKSUM_IS_ZERO(zc) \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens (0 == ((zc)->zc_word[0] | (zc)->zc_word[1] | \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens (zc)->zc_word[2] | (zc)->zc_word[3]))
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens#define ZIO_CHECKSUM_BSWAP(zcp) \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens{ \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens (zcp)->zc_word[0] = BSWAP_64((zcp)->zc_word[0]); \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens (zcp)->zc_word[1] = BSWAP_64((zcp)->zc_word[1]); \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens (zcp)->zc_word[2] = BSWAP_64((zcp)->zc_word[2]); \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens (zcp)->zc_word[3] = BSWAP_64((zcp)->zc_word[3]); \
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens}
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens
98110f08fa182032082d98be2ddb9391fcd62bf1Matthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens{ \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (zcp)->zc_word[0] = w0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (zcp)->zc_word[1] = w1; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (zcp)->zc_word[2] = w2; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (zcp)->zc_word[3] = w3; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_IDENTITY(bp) (ASSERT(!BP_IS_EMBEDDED(bp)), &(bp)->blk_dva[0])
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_IS_GANG(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (BP_IS_EMBEDDED(bp) ? B_FALSE : DVA_GET_GANG(BP_IDENTITY(bp)))
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define DVA_IS_EMPTY(dva) ((dva)->dva_word[0] == 0ULL && \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman (dva)->dva_word[1] == 0ULL)
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens#define BP_IS_HOLE(bp) \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (!BP_IS_EMBEDDED(bp) && DVA_IS_EMPTY(BP_IDENTITY(bp)))
fa9e4066f08beec538e775443c5be79dd423fcabahrens
6e1f5caa9321646aa4212d48e32a0d241866d85dNeil Perrin/* BP_IS_RAIDZ(bp) assumes no block compression */
6e1f5caa9321646aa4212d48e32a0d241866d85dNeil Perrin#define BP_IS_RAIDZ(bp) (DVA_GET_ASIZE(&(bp)->blk_dva[0]) > \
6e1f5caa9321646aa4212d48e32a0d241866d85dNeil Perrin BP_GET_PSIZE(bp))
6e1f5caa9321646aa4212d48e32a0d241866d85dNeil Perrin
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define BP_ZERO(bp) \
fa9e4066f08beec538e775443c5be79dd423fcabahrens{ \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_dva[0].dva_word[0] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_dva[0].dva_word[1] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_dva[1].dva_word[0] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_dva[1].dva_word[1] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_dva[2].dva_word[0] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_dva[2].dva_word[1] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_prop = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_pad[0] = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_pad[1] = 0; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (bp)->blk_phys_birth = 0; \
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (bp)->blk_birth = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens (bp)->blk_fill = 0; \
fa9e4066f08beec538e775443c5be79dd423fcabahrens ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef _BIG_ENDIAN
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define ZFS_HOST_BYTEORDER (0ULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#else
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define ZFS_HOST_BYTEORDER (1ULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BP_SHOULD_BYTESWAP(bp) (BP_GET_BYTEORDER(bp) != ZFS_HOST_BYTEORDER)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
44cd46cadd9aab751dae6a4023c1cb5bf316d274billm#define BP_SPRINTF_LEN 320
fbabab8faf7439009737ccefe9d50152b38c26d1maybee
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/*
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * This macro allows code sharing between zfs, libzpool, and mdb.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * 'func' is either snprintf() or mdb_snprintf().
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * 'ws' (whitespace) can be ' ' for single-line format, '\n' for multi-line.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick */
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman#define SNPRINTF_BLKPTR(func, ws, buf, size, bp, type, checksum, compress) \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick{ \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick static const char *copyname[] = \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { "zero", "single", "double", "triple" }; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick int len = 0; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick int copies = 0; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (bp == NULL) { \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman len += func(buf + len, size - len, "<NULL>"); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } else if (BP_IS_HOLE(bp)) { \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya len += func(buf + len, size - len, \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya "HOLE [L%llu %s] " \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya "size=%llxL birth=%lluL", \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya (u_longlong_t)BP_GET_LEVEL(bp), \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya type, \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya (u_longlong_t)BP_GET_LSIZE(bp), \
70163ac57e58ace1c5c94dfbe85dca5a974eff36Prakash Surya (u_longlong_t)bp->blk_birth); \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens } else if (BP_IS_EMBEDDED(bp)) { \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens len = func(buf + len, size - len, \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens "EMBEDDED [L%llu %s] et=%u %s " \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens "size=%llxL/%llxP birth=%lluL", \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (u_longlong_t)BP_GET_LEVEL(bp), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens type, \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (int)BPE_GET_ETYPE(bp), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens compress, \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (u_longlong_t)BPE_GET_LSIZE(bp), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (u_longlong_t)BPE_GET_PSIZE(bp), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (u_longlong_t)bp->blk_birth); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } else { \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int d = 0; d < BP_GET_NDVAS(bp); d++) { \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick const dva_t *dva = &bp->blk_dva[d]; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (DVA_IS_VALID(dva)) \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick copies++; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick len += func(buf + len, size - len, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "DVA[%d]=<%llu:%llx:%llx>%c", d, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)DVA_GET_VDEV(dva), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)DVA_GET_OFFSET(dva), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)DVA_GET_ASIZE(dva), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ws); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (BP_IS_GANG(bp) && \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick DVA_GET_ASIZE(&bp->blk_dva[2]) <= \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick DVA_GET_ASIZE(&bp->blk_dva[1]) / 2) \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick copies--; \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick len += func(buf + len, size - len, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "[L%llu %s] %s %s %s %s %s %s%c" \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "size=%llxL/%llxP birth=%lluL/%lluP fill=%llu%c" \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "cksum=%llx:%llx:%llx:%llx", \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)BP_GET_LEVEL(bp), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick type, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick checksum, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick compress, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick BP_IS_GANG(bp) ? "gang" : "contiguous", \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick BP_GET_DEDUP(bp) ? "dedup" : "unique", \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick copyname[copies], \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ws, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)BP_GET_LSIZE(bp), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)BP_GET_PSIZE(bp), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)bp->blk_birth, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)BP_PHYSICAL_BIRTH(bp), \
5d7b4d438c4a51eccc95e77a83a437b4d48380ebMatthew Ahrens (u_longlong_t)BP_GET_FILL(bp), \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ws, \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[0], \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[1], \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[2], \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (u_longlong_t)bp->blk_cksum.zc_word[3]); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(len < size); \
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick}
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/dmu.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens
ad23a2db4cfc94c0ed1d58554479ce8d2e7e5768johansen#define BP_GET_BUFC_TYPE(bp) \
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden (((BP_GET_LEVEL(bp) > 0) || (DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))) ? \
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden ARC_BUFC_METADATA : ARC_BUFC_DATA)
fa9e4066f08beec538e775443c5be79dd423fcabahrens
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musantetypedef enum spa_import_type {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante SPA_IMPORT_EXISTING,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante SPA_IMPORT_ASSEMBLE
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante} spa_import_type_t;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* state manipulation functions */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_open(const char *pool, spa_t **, void *tag);
468c413a79615e77179e8d98f22a7e513a8135bdTim Haleyextern int spa_open_rewind(const char *pool, spa_t **, void *tag,
468c413a79615e77179e8d98f22a7e513a8135bdTim Haley nvlist_t *policy, nvlist_t **config);
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Sidenextern int spa_get_stats(const char *pool, nvlist_t **config, char *altroot,
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden size_t buflen);
990b4856d0eaada6f8140335733a1b1771ed2746llingextern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvlist_t *zplprops);
051aabe6136ff13e81542a427e9693ffe1503525taylorextern int spa_import_rootpool(char *devpath, char *devid);
4b964ada391d44b89d97e7e930e6a9a136e0a2f4George Wilsonextern int spa_import(const char *pool, nvlist_t *config, nvlist_t *props,
4b964ada391d44b89d97e7e930e6a9a136e0a2f4George Wilson uint64_t flags);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern nvlist_t *spa_tryimport(nvlist_t *tryconfig);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_destroy(char *pool);
394ab0cbe9de0b3be5bf232d9224a9d050999ae5George Wilsonextern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force,
394ab0cbe9de0b3be5bf232d9224a9d050999ae5George Wilson boolean_t hardforce);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern int spa_reset(char *pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_async_request(spa_t *spa, int flag);
088f389458728c464569a5506b58070254fa4f7dahrensextern void spa_async_unrequest(spa_t *spa, int flag);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_async_suspend(spa_t *spa);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_async_resume(spa_t *spa);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern spa_t *spa_inject_addref(char *pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_inject_delref(spa_t *spa);
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Lingextern void spa_scan_stat_init(spa_t *spa);
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Lingextern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SPA_ASYNC_CONFIG_UPDATE 0x01
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SPA_ASYNC_REMOVE 0x02
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SPA_ASYNC_PROBE 0x04
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SPA_ASYNC_RESILVER_DONE 0x08
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SPA_ASYNC_RESILVER 0x10
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson#define SPA_ASYNC_AUTOEXPAND 0x20
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling#define SPA_ASYNC_REMOVE_DONE 0x40
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling#define SPA_ASYNC_REMOVE_STOP 0x80
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling/*
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling * Controls the behavior of spa_vdev_remove().
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling */
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling#define SPA_REMOVE_UNSPARE 0x01
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling#define SPA_REMOVE_DONE 0x02
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* device manipulation */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_vdev_add(spa_t *spa, nvlist_t *nvroot);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern int spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot,
fa9e4066f08beec538e775443c5be79dd423fcabahrens int replacing);
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwickextern int spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid,
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick int replace_done);
99653d4ee642c6528e88224f12409a5f23060994eschrockextern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare);
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Lingextern boolean_t spa_vdev_remove_active(spa_t *spa);
c67d9675bbc8392fe45f3a7dfbda1ad4daa1eb07eschrockextern int spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath);
6809eb4e2a4a94bcc76229c7b5108b96134537b6Eric Schrockextern int spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musanteextern int spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante nvlist_t *props, boolean_t exp);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock/* spare state (which is global across all pools) */
39c23413b8df94a95f67b34cfd4a4dfc3fd0b48deschrockextern void spa_spare_add(vdev_t *vd);
39c23413b8df94a95f67b34cfd4a4dfc3fd0b48deschrockextern void spa_spare_remove(vdev_t *vd);
89a89ebfd7c3b4056afe2c03e959e22824df777dllingextern boolean_t spa_spare_exists(uint64_t guid, uint64_t *pool, int *refcnt);
39c23413b8df94a95f67b34cfd4a4dfc3fd0b48deschrockextern void spa_spare_activate(vdev_t *vd);
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan/* L2ARC state (which is global across all pools) */
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendanextern void spa_l2cache_add(vdev_t *vd);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendanextern void spa_l2cache_remove(vdev_t *vd);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendanextern boolean_t spa_l2cache_exists(uint64_t guid, uint64_t *pool);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendanextern void spa_l2cache_activate(vdev_t *vd);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendanextern void spa_l2cache_drop(spa_t *spa);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling/* scanning */
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Lingextern int spa_scan(spa_t *spa, pool_scan_func_t func);
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Lingextern int spa_scan_stop(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* spa syncing */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_sync(spa_t *spa, uint64_t txg); /* only for DMU use */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_sync_allpools(void);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
3a737e0dbe1535527c59ef625c9a252897b0b12abrendan/* spa namespace global mutex */
3a737e0dbe1535527c59ef625c9a252897b0b12abrendanextern kmutex_t spa_namespace_lock;
3a737e0dbe1535527c59ef625c9a252897b0b12abrendan
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * SPA configuration functions in spa_config.c
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick#define SPA_CONFIG_UPDATE_POOL 0
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick#define SPA_CONFIG_UPDATE_VDEVS 1
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick
c5904d138f3bdf0762dbf452a43d5a5c387ea6a8eschrockextern void spa_config_sync(spa_t *, boolean_t, boolean_t);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_config_load(void);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern nvlist_t *spa_all_configs(uint64_t *);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_config_set(spa_t *spa, nvlist_t *config);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern nvlist_t *spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg,
fa9e4066f08beec538e775443c5be79dd423fcabahrens int getstats);
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwickextern void spa_config_update(spa_t *spa, int what);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Miscellaneous SPA routines in spa_misc.c
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* Namespace manipulation */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern spa_t *spa_lookup(const char *name);
468c413a79615e77179e8d98f22a7e513a8135bdTim Haleyextern spa_t *spa_add(const char *name, nvlist_t *config, const char *altroot);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_remove(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern spa_t *spa_next(spa_t *prev);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* Refcount functions */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_open_ref(spa_t *spa, void *tag);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_close(spa_t *spa, void *tag);
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbsextern void spa_async_close(spa_t *spa, void *tag);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern boolean_t spa_refcount_zero(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson#define SCL_NONE 0x00
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_CONFIG 0x01
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_STATE 0x02
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_L2ARC 0x04 /* hack until L2ARC 2.0 */
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_ALLOC 0x08
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_ZIO 0x10
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_FREE 0x20
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_VDEV 0x40
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_LOCKS 7
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_ALL ((1 << SCL_LOCKS) - 1)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick#define SCL_STATE_ALL (SCL_STATE | SCL_L2ARC | SCL_ZIO)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick/* Pool configuration locks */
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickextern int spa_config_tryenter(spa_t *spa, int locks, void *tag, krw_t rw);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickextern void spa_config_enter(spa_t *spa, int locks, void *tag, krw_t rw);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickextern void spa_config_exit(spa_t *spa, int locks, void *tag);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickextern int spa_config_held(spa_t *spa, int locks, krw_t rw);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* Pool vdev add/remove lock */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_vdev_enter(spa_t *spa);
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsonextern uint64_t spa_vdev_config_enter(spa_t *spa);
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsonextern void spa_vdev_config_exit(spa_t *spa, vdev_t *vd, uint64_t txg,
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson int error, char *tag);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick/* Pool vdev state change lock */
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilsonextern void spa_vdev_state_enter(spa_t *spa, int oplock);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickextern int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* Log state */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef enum spa_log_state {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick SPA_LOG_UNKNOWN = 0, /* unknown log state */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick SPA_LOG_MISSING, /* missing log(s) */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick SPA_LOG_CLEAR, /* clear the log(s) */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick SPA_LOG_GOOD, /* log(s) are good */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick} spa_log_state_t;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern spa_log_state_t spa_get_log_state(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern void spa_set_log_state(spa_t *spa, spa_log_state_t state);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musanteextern int spa_offline_log(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* Log claim callback */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern void spa_claim_notify(zio_t *zio);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* Accessor functions */
88b7b0f29b20b808b9e06071885b1d6a3ddb6328Matthew Ahrensextern boolean_t spa_shutting_down(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern struct dsl_pool *spa_get_dsl(spa_t *spa);
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Sidenextern boolean_t spa_is_initializing(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern blkptr_t *spa_get_rootblkptr(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_altroot(spa_t *, char *, size_t);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_sync_pass(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern char *spa_name(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_guid(spa_t *spa);
e9103aaee0c546d4644791198c54abb03c89969eGarrett D'Amoreextern uint64_t spa_load_guid(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_last_synced_txg(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_first_txg(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern uint64_t spa_syncing_txg(spa_t *spa);
99653d4ee642c6528e88224f12409a5f23060994eschrockextern uint64_t spa_version(spa_t *spa);
88b7b0f29b20b808b9e06071885b1d6a3ddb6328Matthew Ahrensextern pool_state_t spa_state(spa_t *spa);
b16da2e29e074fb6eaeadc4fd7d17ae7340ba240George Wilsonextern spa_load_state_t spa_load_state(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_freeze_txg(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize);
485bbbf5450c6645352388d798251c1a89ef4c9cGeorge Wilsonextern uint64_t spa_get_dspace(spa_t *spa);
c39f2c8cacf297ec37acd421f4c4fec127991995Christopher Sidenextern uint64_t spa_get_slop_space(spa_t *spa);
485bbbf5450c6645352388d798251c1a89ef4c9cGeorge Wilsonextern void spa_update_dspace(spa_t *spa);
44cd46cadd9aab751dae6a4023c1cb5bf316d274billmextern uint64_t spa_version(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern boolean_t spa_deflate(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern metaslab_class_t *spa_normal_class(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern metaslab_class_t *spa_log_class(spa_t *spa);
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbsextern void spa_evicting_os_register(spa_t *, objset_t *os);
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbsextern void spa_evicting_os_deregister(spa_t *, objset_t *os);
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbsextern void spa_evicting_os_wait(spa_t *spa);
44cd46cadd9aab751dae6a4023c1cb5bf316d274billmextern int spa_max_replication(spa_t *spa);
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Lingextern int spa_prev_software_version(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_busy(void);
0a4e9518a44f226be6d39383330b5b1792d2f184gwextern uint8_t spa_get_failmode(spa_t *spa);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickextern boolean_t spa_suspended(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern uint64_t spa_bootfs(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern uint64_t spa_delegation(spa_t *spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern objset_t *spa_meta_objset(spa_t *spa);
283b84606b6fc326692c03273de1774e8c122f9aGeorge.Wilsonextern uint64_t spa_deadman_synctime(spa_t *spa);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* Miscellaneous support routines */
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossmanextern void spa_activate_mos_feature(spa_t *spa, const char *feature,
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman dmu_tx_t *tx);
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Sidenextern void spa_deactivate_mos_feature(spa_t *spa, const char *feature);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern int spa_rename(const char *oldname, const char *newname);
f9af39bacaaa0f9dda3b75ff6858b9f3988a39afGeorge Wilsonextern spa_t *spa_by_guid(uint64_t pool_guid, uint64_t device_guid);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern char *spa_strdup(const char *);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_strfree(char *);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern uint64_t spa_get_random(uint64_t range);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musanteextern uint64_t spa_generate_guid(spa_t *spa);
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossmanextern void snprintf_blkptr(char *buf, size_t buflen, const blkptr_t *bp);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_freeze(spa_t *spa);
e9103aaee0c546d4644791198c54abb03c89969eGarrett D'Amoreextern int spa_change_guid(spa_t *spa);
990b4856d0eaada6f8140335733a1b1771ed2746llingextern void spa_upgrade(spa_t *spa, uint64_t version);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_evict_all(void);
c5904d138f3bdf0762dbf452a43d5a5c387ea6a8eschrockextern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid,
c5904d138f3bdf0762dbf452a43d5a5c387ea6a8eschrock boolean_t l2cache);
99653d4ee642c6528e88224f12409a5f23060994eschrockextern boolean_t spa_has_spare(spa_t *, uint64_t guid);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp);
6ce0521ac291be36119f359237066c4fb8088683perrinextern boolean_t spa_has_slogs(spa_t *spa);
bf82a41b568b2bd31bf9814587eb25ee2e7b05ffeschrockextern boolean_t spa_is_root(spa_t *spa);
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwickextern boolean_t spa_writeable(spa_t *spa);
73527f441cbbd953fa42cc5a30a413bad75f24a9Alex Reeceextern boolean_t spa_has_pending_synctask(spa_t *spa);
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrensextern int spa_maxblocksize(spa_t *spa);
f63ab3d5a84a12b474655fc7e700db3efba6c4c9Matthew Ahrensextern void zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp);
468c413a79615e77179e8d98f22a7e513a8135bdTim Haley
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwickextern int spa_mode(spa_t *spa);
ca45db4129beff691dc46576c328149443788af2Chris Kirbyextern uint64_t strtonum(const char *str, char **nptr);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksextern char *spa_his_ievent_table[];
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
06eeb2ad640ce72d394ac521094bed7681044408ekextern void spa_history_create_obj(spa_t *spa, dmu_tx_t *tx);
06eeb2ad640ce72d394ac521094bed7681044408ekextern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read,
06eeb2ad640ce72d394ac521094bed7681044408ek char *his_buf);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensextern int spa_history_log(spa_t *spa, const char *his_buf);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensextern int spa_history_log_nvl(spa_t *spa, nvlist_t *nvl);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensextern void spa_history_log_version(spa_t *spa, const char *operation);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensextern void spa_history_log_internal(spa_t *spa, const char *operation,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dmu_tx_t *tx, const char *fmt, ...);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensextern void spa_history_log_internal_ds(struct dsl_dataset *ds, const char *op,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dmu_tx_t *tx, const char *fmt, ...);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensextern void spa_history_log_internal_dd(dsl_dir_t *dd, const char *operation,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dmu_tx_t *tx, const char *fmt, ...);
06eeb2ad640ce72d394ac521094bed7681044408ek
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock/* error handling */
7802d7bf98dec568dadf72286893b1fe5abd8602Matthew Ahrensstruct zbookmark_phys;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickextern void spa_log_error(spa_t *spa, zio_t *zio);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zio_t *zio, uint64_t stateoroffset, uint64_t length);
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrockextern void zfs_post_remove(spa_t *spa, vdev_t *vd);
069f55e237020c4a4907b235fc38fafc6442ce94Eric Schrockextern void zfs_post_state_change(spa_t *spa, vdev_t *vd);
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrockextern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern uint64_t spa_get_errlog_size(spa_t *spa);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_errlog_rotate(spa_t *spa);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_errlog_drain(spa_t *spa);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_errlog_sync(spa_t *spa, uint64_t txg);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockextern void spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
87db74c14be24ab4c463ce6ddb7127e271c647bfek/* vdev cache */
87db74c14be24ab4c463ce6ddb7127e271c647bfekextern void vdev_cache_stat_init(void);
87db74c14be24ab4c463ce6ddb7127e271c647bfekextern void vdev_cache_stat_fini(void);
87db74c14be24ab4c463ce6ddb7127e271c647bfek
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* Initialization and termination */
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_init(int flags);
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern void spa_fini(void);
e7cbe64f7a72dae5cb44f100db60ca88f3313c65gwextern void spa_boot_init();
fa9e4066f08beec538e775443c5be79dd423fcabahrens
b1b8ab34de515a5e83206da22c3d7e563241b021lling/* properties */
990b4856d0eaada6f8140335733a1b1771ed2746llingextern int spa_prop_set(spa_t *spa, nvlist_t *nvp);
990b4856d0eaada6f8140335733a1b1771ed2746llingextern int spa_prop_get(spa_t *spa, nvlist_t **nvp);
990b4856d0eaada6f8140335733a1b1771ed2746llingextern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx);
379c004d1f26b343f034bba8a350290691d00d38Eric Schrockextern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t);
b1b8ab34de515a5e83206da22c3d7e563241b021lling
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrock/* asynchronous event notification */
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrockextern void spa_event_notify(spa_t *spa, vdev_t *vdev, const char *name);
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef ZFS_DEBUG
c0a81264b59ba24de8701436570c3aae5689dc89ek#define dprintf_bp(bp, fmt, ...) do { \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
c0a81264b59ba24de8701436570c3aae5689dc89ek char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \
43466aae47bfcd2ad9bf501faec8e75c08095e4fMax Grossman snprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, (bp)); \
c0a81264b59ba24de8701436570c3aae5689dc89ek dprintf(fmt " %s\n", __VA_ARGS__, __blkbuf); \
c0a81264b59ba24de8701436570c3aae5689dc89ek kmem_free(__blkbuf, BP_SPRINTF_LEN); \
fa9e4066f08beec538e775443c5be79dd423fcabahrens } \
fa9e4066f08beec538e775443c5be79dd423fcabahrens_NOTE(CONSTCOND) } while (0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#else
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define dprintf_bp(bp, fmt, ...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilsonextern boolean_t spa_debug_enabled(spa_t *spa);
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#define spa_dbgmsg(spa, ...) \
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson{ \
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson if (spa_debug_enabled(spa)) \
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson zfs_dbgmsg(__VA_ARGS__); \
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson}
09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwickextern int spa_mode_global; /* mode, e.g. FREAD | FWRITE */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef __cplusplus
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif /* _SYS_SPA_H */