mirror of https://github.com/F-Stack/f-stack.git
352 lines
7.6 KiB
C
352 lines
7.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __INCLUDE_HASH_FUNC_H__
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#define __INCLUDE_HASH_FUNC_H__
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static inline uint64_t
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hash_xor_key8(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0;
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xor0 = seed ^ k[0];
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key16(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0;
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xor0 = (k[0] ^ seed) ^ k[1];
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key24(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0;
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xor0 = (k[0] ^ seed) ^ k[1];
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xor0 ^= k[2];
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key32(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0, xor1;
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xor0 = (k[0] ^ seed) ^ k[1];
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xor1 = k[2] ^ k[3];
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xor0 ^= xor1;
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key40(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0, xor1;
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xor0 = (k[0] ^ seed) ^ k[1];
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xor1 = k[2] ^ k[3];
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xor0 ^= xor1;
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xor0 ^= k[4];
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key48(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0, xor1, xor2;
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xor0 = (k[0] ^ seed) ^ k[1];
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xor1 = k[2] ^ k[3];
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xor2 = k[4] ^ k[5];
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xor0 ^= xor1;
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xor0 ^= xor2;
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key56(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0, xor1, xor2;
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xor0 = (k[0] ^ seed) ^ k[1];
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xor1 = k[2] ^ k[3];
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xor2 = k[4] ^ k[5];
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xor0 ^= xor1;
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xor2 ^= k[6];
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xor0 ^= xor2;
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return (xor0 >> 32) ^ xor0;
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}
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static inline uint64_t
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hash_xor_key64(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t xor0, xor1, xor2, xor3;
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xor0 = (k[0] ^ seed) ^ k[1];
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xor1 = k[2] ^ k[3];
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xor2 = k[4] ^ k[5];
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xor3 = k[6] ^ k[7];
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xor0 ^= xor1;
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xor2 ^= xor3;
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xor0 ^= xor2;
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return (xor0 >> 32) ^ xor0;
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}
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#if defined(RTE_ARCH_X86_64) && defined(RTE_MACHINE_CPUFLAG_SSE4_2)
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#include <x86intrin.h>
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static inline uint64_t
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hash_crc_key8(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t crc0;
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crc0 = _mm_crc32_u64(seed, k[0]);
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return crc0;
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}
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static inline uint64_t
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hash_crc_key16(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, crc0, crc1;
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k0 = k[0];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc0 ^= crc1;
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return crc0;
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}
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static inline uint64_t
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hash_crc_key24(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, k2, crc0, crc1;
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k0 = k[0];
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k2 = k[2];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc0 = _mm_crc32_u64(crc0, k2);
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crc0 ^= crc1;
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return crc0;
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}
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static inline uint64_t
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hash_crc_key32(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, k2, crc0, crc1, crc2, crc3;
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k0 = k[0];
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k2 = k[2];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc2 = _mm_crc32_u64(k2, k[3]);
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crc3 = k2 >> 32;
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crc0 = _mm_crc32_u64(crc0, crc1);
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crc1 = _mm_crc32_u64(crc2, crc3);
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crc0 ^= crc1;
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return crc0;
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}
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static inline uint64_t
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hash_crc_key40(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, k2, crc0, crc1, crc2, crc3;
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k0 = k[0];
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k2 = k[2];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc2 = _mm_crc32_u64(k2, k[3]);
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crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
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crc0 = _mm_crc32_u64(crc0, crc1);
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crc1 = _mm_crc32_u64(crc2, crc3);
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crc0 ^= crc1;
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return crc0;
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}
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static inline uint64_t
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hash_crc_key48(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, k2, k5, crc0, crc1, crc2, crc3;
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k0 = k[0];
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k2 = k[2];
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k5 = k[5];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc2 = _mm_crc32_u64(k2, k[3]);
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crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
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crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2);
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crc1 = _mm_crc32_u64(crc3, k5);
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crc0 ^= crc1;
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return crc0;
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}
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static inline uint64_t
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hash_crc_key56(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5;
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k0 = k[0];
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k2 = k[2];
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k5 = k[5];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc2 = _mm_crc32_u64(k2, k[3]);
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crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
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crc4 = _mm_crc32_u64(k5, k[6]);
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crc5 = k5 >> 32;
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crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2);
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crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5);
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crc0 ^= crc1;
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return crc0;
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}
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static inline uint64_t
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hash_crc_key64(void *key, __rte_unused uint32_t key_size, uint64_t seed)
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{
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uint64_t *k = key;
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uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5;
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k0 = k[0];
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k2 = k[2];
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k5 = k[5];
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crc0 = _mm_crc32_u64(k0, seed);
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crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
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crc2 = _mm_crc32_u64(k2, k[3]);
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crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
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crc4 = _mm_crc32_u64(k5, k[6]);
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crc5 = _mm_crc32_u64(k5 >> 32, k[7]);
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crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2);
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crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5);
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crc0 ^= crc1;
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return crc0;
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}
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#define hash_default_key8 hash_crc_key8
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#define hash_default_key16 hash_crc_key16
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#define hash_default_key24 hash_crc_key24
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#define hash_default_key32 hash_crc_key32
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#define hash_default_key40 hash_crc_key40
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#define hash_default_key48 hash_crc_key48
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#define hash_default_key56 hash_crc_key56
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#define hash_default_key64 hash_crc_key64
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#else
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#define hash_default_key8 hash_xor_key8
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#define hash_default_key16 hash_xor_key16
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#define hash_default_key24 hash_xor_key24
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#define hash_default_key32 hash_xor_key32
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#define hash_default_key40 hash_xor_key40
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#define hash_default_key48 hash_xor_key48
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#define hash_default_key56 hash_xor_key56
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#define hash_default_key64 hash_xor_key64
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#endif
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#endif
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