405 lines
12 KiB
C
405 lines
12 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 https://opensource.org/licenses/CDDL-1.0.
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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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* Copyright (c) 2021-2022 Tino Reichardt <milky-zfs@mcmilk.de>
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*/
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#include <sys/zfs_context.h>
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#include <sys/zfs_impl.h>
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#include <sys/blake3.h>
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#include <sys/simd.h>
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#include "blake3_impl.h"
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#if defined(__aarch64__) || \
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(defined(__x86_64) && defined(HAVE_SSE2)) || \
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(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
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extern void ASMABI zfs_blake3_compress_in_place_sse2(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags);
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extern void ASMABI zfs_blake3_compress_xof_sse2(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags, uint8_t out[64]);
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extern void ASMABI zfs_blake3_hash_many_sse2(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out);
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static void blake3_compress_in_place_sse2(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags) {
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kfpu_begin();
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zfs_blake3_compress_in_place_sse2(cv, block, block_len, counter,
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flags);
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kfpu_end();
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}
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static void blake3_compress_xof_sse2(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags, uint8_t out[64]) {
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kfpu_begin();
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zfs_blake3_compress_xof_sse2(cv, block, block_len, counter, flags,
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out);
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kfpu_end();
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}
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static void blake3_hash_many_sse2(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out) {
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kfpu_begin();
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zfs_blake3_hash_many_sse2(inputs, num_inputs, blocks, key, counter,
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increment_counter, flags, flags_start, flags_end, out);
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kfpu_end();
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}
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static boolean_t blake3_is_sse2_supported(void)
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{
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#if defined(__x86_64)
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return (kfpu_allowed() && zfs_sse2_available());
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#elif defined(__PPC64__)
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return (kfpu_allowed() && zfs_vsx_available());
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#else
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return (kfpu_allowed());
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#endif
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}
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const blake3_ops_t blake3_sse2_impl = {
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.compress_in_place = blake3_compress_in_place_sse2,
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.compress_xof = blake3_compress_xof_sse2,
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.hash_many = blake3_hash_many_sse2,
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.is_supported = blake3_is_sse2_supported,
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.degree = 4,
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.name = "sse2"
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};
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#endif
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#if defined(__aarch64__) || \
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(defined(__x86_64) && defined(HAVE_SSE2)) || \
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(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
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extern void ASMABI zfs_blake3_compress_in_place_sse41(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags);
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extern void ASMABI zfs_blake3_compress_xof_sse41(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags, uint8_t out[64]);
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extern void ASMABI zfs_blake3_hash_many_sse41(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out);
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static void blake3_compress_in_place_sse41(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags) {
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kfpu_begin();
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zfs_blake3_compress_in_place_sse41(cv, block, block_len, counter,
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flags);
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kfpu_end();
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}
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static void blake3_compress_xof_sse41(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags, uint8_t out[64]) {
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kfpu_begin();
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zfs_blake3_compress_xof_sse41(cv, block, block_len, counter, flags,
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out);
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kfpu_end();
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}
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static void blake3_hash_many_sse41(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out) {
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kfpu_begin();
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zfs_blake3_hash_many_sse41(inputs, num_inputs, blocks, key, counter,
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increment_counter, flags, flags_start, flags_end, out);
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kfpu_end();
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}
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static boolean_t blake3_is_sse41_supported(void)
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{
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#if defined(__x86_64)
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return (kfpu_allowed() && zfs_sse4_1_available());
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#elif defined(__PPC64__)
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return (kfpu_allowed() && zfs_vsx_available());
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#else
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return (kfpu_allowed());
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#endif
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}
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const blake3_ops_t blake3_sse41_impl = {
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.compress_in_place = blake3_compress_in_place_sse41,
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.compress_xof = blake3_compress_xof_sse41,
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.hash_many = blake3_hash_many_sse41,
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.is_supported = blake3_is_sse41_supported,
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.degree = 4,
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.name = "sse41"
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};
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#endif
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#if defined(__x86_64) && defined(HAVE_SSE4_1) && defined(HAVE_AVX2)
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extern void ASMABI zfs_blake3_hash_many_avx2(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out);
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static void blake3_hash_many_avx2(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out) {
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kfpu_begin();
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zfs_blake3_hash_many_avx2(inputs, num_inputs, blocks, key, counter,
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increment_counter, flags, flags_start, flags_end, out);
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kfpu_end();
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}
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static boolean_t blake3_is_avx2_supported(void)
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{
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return (kfpu_allowed() && zfs_sse4_1_available() &&
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zfs_avx2_available());
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}
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const blake3_ops_t
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blake3_avx2_impl = {
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.compress_in_place = blake3_compress_in_place_sse41,
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.compress_xof = blake3_compress_xof_sse41,
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.hash_many = blake3_hash_many_avx2,
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.is_supported = blake3_is_avx2_supported,
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.degree = 8,
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.name = "avx2"
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};
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#endif
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#if defined(__x86_64) && defined(HAVE_AVX512F) && defined(HAVE_AVX512VL)
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extern void ASMABI zfs_blake3_compress_in_place_avx512(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags);
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extern void ASMABI zfs_blake3_compress_xof_avx512(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags, uint8_t out[64]);
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extern void ASMABI zfs_blake3_hash_many_avx512(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out);
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static void blake3_compress_in_place_avx512(uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags) {
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kfpu_begin();
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zfs_blake3_compress_in_place_avx512(cv, block, block_len, counter,
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flags);
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kfpu_end();
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}
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static void blake3_compress_xof_avx512(const uint32_t cv[8],
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const uint8_t block[BLAKE3_BLOCK_LEN], uint8_t block_len,
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uint64_t counter, uint8_t flags, uint8_t out[64]) {
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kfpu_begin();
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zfs_blake3_compress_xof_avx512(cv, block, block_len, counter, flags,
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out);
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kfpu_end();
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}
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static void blake3_hash_many_avx512(const uint8_t * const *inputs,
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size_t num_inputs, size_t blocks, const uint32_t key[8],
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uint64_t counter, boolean_t increment_counter, uint8_t flags,
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uint8_t flags_start, uint8_t flags_end, uint8_t *out) {
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kfpu_begin();
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zfs_blake3_hash_many_avx512(inputs, num_inputs, blocks, key, counter,
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increment_counter, flags, flags_start, flags_end, out);
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kfpu_end();
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}
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static boolean_t blake3_is_avx512_supported(void)
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{
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return (kfpu_allowed() && zfs_avx512f_available() &&
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zfs_avx512vl_available());
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}
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const blake3_ops_t blake3_avx512_impl = {
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.compress_in_place = blake3_compress_in_place_avx512,
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.compress_xof = blake3_compress_xof_avx512,
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.hash_many = blake3_hash_many_avx512,
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.is_supported = blake3_is_avx512_supported,
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.degree = 16,
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.name = "avx512"
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};
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#endif
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extern const blake3_ops_t blake3_generic_impl;
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static const blake3_ops_t *const blake3_impls[] = {
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&blake3_generic_impl,
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#if defined(__aarch64__) || \
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(defined(__x86_64) && defined(HAVE_SSE2)) || \
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(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
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&blake3_sse2_impl,
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#endif
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#if defined(__aarch64__) || \
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(defined(__x86_64) && defined(HAVE_SSE4_1)) || \
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(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
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&blake3_sse41_impl,
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#endif
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#if defined(__x86_64) && defined(HAVE_SSE4_1) && defined(HAVE_AVX2)
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&blake3_avx2_impl,
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#endif
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#if defined(__x86_64) && defined(HAVE_AVX512F) && defined(HAVE_AVX512VL)
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&blake3_avx512_impl,
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#endif
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};
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/* use the generic implementation functions */
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#define IMPL_NAME "blake3"
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#define IMPL_OPS_T blake3_ops_t
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#define IMPL_ARRAY blake3_impls
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#define IMPL_GET_OPS blake3_get_ops
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#define ZFS_IMPL_OPS zfs_blake3_ops
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#include <generic_impl.c>
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#ifdef _KERNEL
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void **blake3_per_cpu_ctx;
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void
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blake3_per_cpu_ctx_init(void)
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{
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/*
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* Create "The Godfather" ptr to hold all blake3 ctx
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*/
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blake3_per_cpu_ctx = kmem_alloc(max_ncpus * sizeof (void *), KM_SLEEP);
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for (int i = 0; i < max_ncpus; i++) {
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blake3_per_cpu_ctx[i] = kmem_alloc(sizeof (BLAKE3_CTX),
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KM_SLEEP);
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}
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}
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void
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blake3_per_cpu_ctx_fini(void)
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{
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for (int i = 0; i < max_ncpus; i++) {
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memset(blake3_per_cpu_ctx[i], 0, sizeof (BLAKE3_CTX));
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kmem_free(blake3_per_cpu_ctx[i], sizeof (BLAKE3_CTX));
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}
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memset(blake3_per_cpu_ctx, 0, max_ncpus * sizeof (void *));
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kmem_free(blake3_per_cpu_ctx, max_ncpus * sizeof (void *));
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}
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#define IMPL_FMT(impl, i) (((impl) == (i)) ? "[%s] " : "%s ")
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#if defined(__linux__)
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static int
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blake3_param_get(char *buffer, zfs_kernel_param_t *unused)
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{
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const uint32_t impl = IMPL_READ(generic_impl_chosen);
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char *fmt;
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int cnt = 0;
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/* cycling */
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fmt = IMPL_FMT(impl, IMPL_CYCLE);
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cnt += kmem_scnprintf(buffer + cnt, PAGE_SIZE - cnt, fmt, "cycle");
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/* list fastest */
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fmt = IMPL_FMT(impl, IMPL_FASTEST);
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cnt += kmem_scnprintf(buffer + cnt, PAGE_SIZE - cnt, fmt, "fastest");
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/* list all supported implementations */
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generic_impl_init();
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for (uint32_t i = 0; i < generic_supp_impls_cnt; ++i) {
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fmt = IMPL_FMT(impl, i);
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cnt += kmem_scnprintf(buffer + cnt, PAGE_SIZE - cnt, fmt,
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blake3_impls[i]->name);
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}
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return (cnt);
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}
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static int
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blake3_param_set(const char *val, zfs_kernel_param_t *unused)
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{
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(void) unused;
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return (generic_impl_setname(val));
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}
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#elif defined(__FreeBSD__)
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#include <sys/sbuf.h>
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static int
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blake3_param(ZFS_MODULE_PARAM_ARGS)
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{
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int err;
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generic_impl_init();
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if (req->newptr == NULL) {
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const uint32_t impl = IMPL_READ(generic_impl_chosen);
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const int init_buflen = 64;
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const char *fmt;
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struct sbuf *s;
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s = sbuf_new_for_sysctl(NULL, NULL, init_buflen, req);
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/* cycling */
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fmt = IMPL_FMT(impl, IMPL_CYCLE);
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(void) sbuf_printf(s, fmt, "cycle");
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/* list fastest */
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fmt = IMPL_FMT(impl, IMPL_FASTEST);
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(void) sbuf_printf(s, fmt, "fastest");
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/* list all supported implementations */
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for (uint32_t i = 0; i < generic_supp_impls_cnt; ++i) {
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fmt = IMPL_FMT(impl, i);
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(void) sbuf_printf(s, fmt, generic_supp_impls[i]->name);
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}
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err = sbuf_finish(s);
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sbuf_delete(s);
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return (err);
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}
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char buf[16];
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err = sysctl_handle_string(oidp, buf, sizeof (buf), req);
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if (err) {
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return (err);
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}
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return (-generic_impl_setname(buf));
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}
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#endif
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#undef IMPL_FMT
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ZFS_MODULE_VIRTUAL_PARAM_CALL(zfs, zfs_, blake3_impl,
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blake3_param_set, blake3_param_get, ZMOD_RW, \
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"Select BLAKE3 implementation.");
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#endif
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