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This commit adds BLAKE3 checksums to OpenZFS, it has similar performance to Edon-R, but without the caveats around the latter. Homepage of BLAKE3: https://github.com/BLAKE3-team/BLAKE3 Wikipedia: https://en.wikipedia.org/wiki/BLAKE_(hash_function)#BLAKE3 Short description of Wikipedia: BLAKE3 is a cryptographic hash function based on Bao and BLAKE2, created by Jack O'Connor, Jean-Philippe Aumasson, Samuel Neves, and Zooko Wilcox-O'Hearn. It was announced on January 9, 2020, at Real World Crypto. BLAKE3 is a single algorithm with many desirable features (parallelism, XOF, KDF, PRF and MAC), in contrast to BLAKE and BLAKE2, which are algorithm families with multiple variants. BLAKE3 has a binary tree structure, so it supports a practically unlimited degree of parallelism (both SIMD and multithreading) given enough input. The official Rust and C implementations are dual-licensed as public domain (CC0) and the Apache License. Along with adding the BLAKE3 hash into the OpenZFS infrastructure a new benchmarking file called chksum_bench was introduced. When read it reports the speed of the available checksum functions. On Linux: cat /proc/spl/kstat/zfs/chksum_bench On FreeBSD: sysctl kstat.zfs.misc.chksum_bench This is an example output of an i3-1005G1 test system with Debian 11: implementation 1k 4k 16k 64k 256k 1m 4m edonr-generic 1196 1602 1761 1749 1762 1759 1751 skein-generic 546 591 608 615 619 612 616 sha256-generic 240 300 316 314 304 285 276 sha512-generic 353 441 467 476 472 467 426 blake3-generic 308 313 313 313 312 313 312 blake3-sse2 402 1289 1423 1446 1432 1458 1413 blake3-sse41 427 1470 1625 1704 1679 1607 1629 blake3-avx2 428 1920 3095 3343 3356 3318 3204 blake3-avx512 473 2687 4905 5836 5844 5643 5374 Output on Debian 5.10.0-10-amd64 system: (Ryzen 7 5800X) implementation 1k 4k 16k 64k 256k 1m 4m edonr-generic 1840 2458 2665 2719 2711 2723 2693 skein-generic 870 966 996 992 1003 1005 1009 sha256-generic 415 442 453 455 457 457 457 sha512-generic 608 690 711 718 719 720 721 blake3-generic 301 313 311 309 309 310 310 blake3-sse2 343 1865 2124 2188 2180 2181 2186 blake3-sse41 364 2091 2396 2509 2463 2482 2488 blake3-avx2 365 2590 4399 4971 4915 4802 4764 Output on Debian 5.10.0-9-powerpc64le system: (POWER 9) implementation 1k 4k 16k 64k 256k 1m 4m edonr-generic 1213 1703 1889 1918 1957 1902 1907 skein-generic 434 492 520 522 511 525 525 sha256-generic 167 183 187 188 188 187 188 sha512-generic 186 216 222 221 225 224 224 blake3-generic 153 152 154 153 151 153 153 blake3-sse2 391 1170 1366 1406 1428 1426 1414 blake3-sse41 352 1049 1212 1174 1262 1258 1259 Output on Debian 5.10.0-11-arm64 system: (Pi400) implementation 1k 4k 16k 64k 256k 1m 4m edonr-generic 487 603 629 639 643 641 641 skein-generic 271 299 303 308 309 309 307 sha256-generic 117 127 128 130 130 129 130 sha512-generic 145 165 170 172 173 174 175 blake3-generic 81 29 71 89 89 89 89 blake3-sse2 112 323 368 379 380 371 374 blake3-sse41 101 315 357 368 369 364 360 Structurally, the new code is mainly split into these parts: - 1x cross platform generic c variant: blake3_generic.c - 4x assembly for X86-64 (SSE2, SSE4.1, AVX2, AVX512) - 2x assembly for ARMv8 (NEON converted from SSE2) - 2x assembly for PPC64-LE (POWER8 converted from SSE2) - one file for switching between the implementations Note the PPC64 assembly requires the VSX instruction set and the kfpu_begin() / kfpu_end() calls on PowerPC were updated accordingly. Reviewed-by: Felix Dörre <felix@dogcraft.de> Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de> Co-authored-by: Rich Ercolani <rincebrain@gmail.com> Closes #10058 Closes #12918
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Based on BLAKE3 v1.3.1, https://github.com/BLAKE3-team/BLAKE3
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* Copyright (c) 2019-2020 Samuel Neves and Jack O'Connor
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* Copyright (c) 2021 Tino Reichardt <milky-zfs@mcmilk.de>
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*/
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#ifndef BLAKE3_H
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#define BLAKE3_H
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#ifdef _KERNEL
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#include <sys/types.h>
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#else
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#include <stdint.h>
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#include <stdlib.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define BLAKE3_KEY_LEN 32
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#define BLAKE3_OUT_LEN 32
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#define BLAKE3_MAX_DEPTH 54
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#define BLAKE3_BLOCK_LEN 64
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#define BLAKE3_CHUNK_LEN 1024
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/*
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* This struct is a private implementation detail.
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* It has to be here because it's part of BLAKE3_CTX below.
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*/
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typedef struct {
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uint32_t cv[8];
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uint64_t chunk_counter;
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uint8_t buf[BLAKE3_BLOCK_LEN];
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uint8_t buf_len;
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uint8_t blocks_compressed;
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uint8_t flags;
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} blake3_chunk_state_t;
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typedef struct {
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uint32_t key[8];
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blake3_chunk_state_t chunk;
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uint8_t cv_stack_len;
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/*
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* The stack size is MAX_DEPTH + 1 because we do lazy merging. For
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* example, with 7 chunks, we have 3 entries in the stack. Adding an
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* 8th chunk requires a 4th entry, rather than merging everything down
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* to 1, because we don't know whether more input is coming. This is
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* different from how the reference implementation does things.
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*/
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uint8_t cv_stack[(BLAKE3_MAX_DEPTH + 1) * BLAKE3_OUT_LEN];
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/* const blake3_impl_ops_t *ops */
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const void *ops;
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} BLAKE3_CTX;
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/* init the context for hash operation */
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void Blake3_Init(BLAKE3_CTX *ctx);
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/* init the context for a MAC and/or tree hash operation */
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void Blake3_InitKeyed(BLAKE3_CTX *ctx, const uint8_t key[BLAKE3_KEY_LEN]);
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/* process the input bytes */
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void Blake3_Update(BLAKE3_CTX *ctx, const void *input, size_t input_len);
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/* finalize the hash computation and output the result */
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void Blake3_Final(const BLAKE3_CTX *ctx, uint8_t *out);
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/* finalize the hash computation and output the result */
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void Blake3_FinalSeek(const BLAKE3_CTX *ctx, uint64_t seek, uint8_t *out,
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size_t out_len);
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/* return number of supported implementations */
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extern int blake3_get_impl_count(void);
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/* return id of selected implementation */
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extern int blake3_get_impl_id(void);
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/* return name of selected implementation */
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extern const char *blake3_get_impl_name(void);
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/* setup id as fastest implementation */
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extern void blake3_set_impl_fastest(uint32_t id);
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/* set implementation by id */
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extern void blake3_set_impl_id(uint32_t id);
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/* set implementation by name */
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extern int blake3_set_impl_name(const char *name);
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/* set startup implementation */
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extern void blake3_setup_impl(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* BLAKE3_H */
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