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/*
// Copyright (c) 2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#ifndef __INCLUDE_HASH_FUNC_H__
#define __INCLUDE_HASH_FUNC_H__
static inline uint64_t
hash_xor_key8(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0;
xor0 = seed ^ k[0];
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key16(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0;
xor0 = (k[0] ^ seed) ^ k[1];
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key24(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0;
xor0 = (k[0] ^ seed) ^ k[1];
xor0 ^= k[2];
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key32(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0, xor1;
xor0 = (k[0] ^ seed) ^ k[1];
xor1 = k[2] ^ k[3];
xor0 ^= xor1;
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key40(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0, xor1;
xor0 = (k[0] ^ seed) ^ k[1];
xor1 = k[2] ^ k[3];
xor0 ^= xor1;
xor0 ^= k[4];
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key48(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0, xor1, xor2;
xor0 = (k[0] ^ seed) ^ k[1];
xor1 = k[2] ^ k[3];
xor2 = k[4] ^ k[5];
xor0 ^= xor1;
xor0 ^= xor2;
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key56(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0, xor1, xor2;
xor0 = (k[0] ^ seed) ^ k[1];
xor1 = k[2] ^ k[3];
xor2 = k[4] ^ k[5];
xor0 ^= xor1;
xor2 ^= k[6];
xor0 ^= xor2;
return (xor0 >> 32) ^ xor0;
}
static inline uint64_t
hash_xor_key64(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t xor0, xor1, xor2, xor3;
xor0 = (k[0] ^ seed) ^ k[1];
xor1 = k[2] ^ k[3];
xor2 = k[4] ^ k[5];
xor3 = k[6] ^ k[7];
xor0 ^= xor1;
xor2 ^= xor3;
xor0 ^= xor2;
return (xor0 >> 32) ^ xor0;
}
#if defined(RTE_ARCH_X86_64) && defined(RTE_MACHINE_CPUFLAG_SSE4_2)
#include <x86intrin.h>
static inline uint64_t
hash_crc_key8(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t crc0;
crc0 = _mm_crc32_u64(seed, k[0]);
return crc0;
}
static inline uint64_t
hash_crc_key16(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, crc0, crc1;
k0 = k[0];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc0 ^= crc1;
return crc0;
}
static inline uint64_t
hash_crc_key24(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, k2, crc0, crc1;
k0 = k[0];
k2 = k[2];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc0 = _mm_crc32_u64(crc0, k2);
crc0 ^= crc1;
return crc0;
}
static inline uint64_t
hash_crc_key32(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, k2, crc0, crc1, crc2, crc3;
k0 = k[0];
k2 = k[2];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc2 = _mm_crc32_u64(k2, k[3]);
crc3 = k2 >> 32;
crc0 = _mm_crc32_u64(crc0, crc1);
crc1 = _mm_crc32_u64(crc2, crc3);
crc0 ^= crc1;
return crc0;
}
static inline uint64_t
hash_crc_key40(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, k2, crc0, crc1, crc2, crc3;
k0 = k[0];
k2 = k[2];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc2 = _mm_crc32_u64(k2, k[3]);
crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
crc0 = _mm_crc32_u64(crc0, crc1);
crc1 = _mm_crc32_u64(crc2, crc3);
crc0 ^= crc1;
return crc0;
}
static inline uint64_t
hash_crc_key48(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, k2, k5, crc0, crc1, crc2, crc3;
k0 = k[0];
k2 = k[2];
k5 = k[5];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc2 = _mm_crc32_u64(k2, k[3]);
crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2);
crc1 = _mm_crc32_u64(crc3, k5);
crc0 ^= crc1;
return crc0;
}
static inline uint64_t
hash_crc_key56(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5;
k0 = k[0];
k2 = k[2];
k5 = k[5];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc2 = _mm_crc32_u64(k2, k[3]);
crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
crc4 = _mm_crc32_u64(k5, k[6]);
crc5 = k5 >> 32;
crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2);
crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5);
crc0 ^= crc1;
return crc0;
}
static inline uint64_t
hash_crc_key64(void *key, __rte_unused uint32_t key_size, uint64_t seed)
{
uint64_t *k = key;
uint64_t k0, k2, k5, crc0, crc1, crc2, crc3, crc4, crc5;
k0 = k[0];
k2 = k[2];
k5 = k[5];
crc0 = _mm_crc32_u64(k0, seed);
crc1 = _mm_crc32_u64(k0 >> 32, k[1]);
crc2 = _mm_crc32_u64(k2, k[3]);
crc3 = _mm_crc32_u64(k2 >> 32, k[4]);
crc4 = _mm_crc32_u64(k5, k[6]);
crc5 = _mm_crc32_u64(k5 >> 32, k[7]);
crc0 = _mm_crc32_u64(crc0, (crc1 << 32) ^ crc2);
crc1 = _mm_crc32_u64(crc3, (crc4 << 32) ^ crc5);
crc0 ^= crc1;
return crc0;
}
#define hash_default_key8 hash_crc_key8
#define hash_default_key16 hash_crc_key16
#define hash_default_key24 hash_crc_key24
#define hash_default_key32 hash_crc_key32
#define hash_default_key40 hash_crc_key40
#define hash_default_key48 hash_crc_key48
#define hash_default_key56 hash_crc_key56
#define hash_default_key64 hash_crc_key64
#else
#define hash_default_key8 hash_xor_key8
#define hash_default_key16 hash_xor_key16
#define hash_default_key24 hash_xor_key24
#define hash_default_key32 hash_xor_key32
#define hash_default_key40 hash_xor_key40
#define hash_default_key48 hash_xor_key48
#define hash_default_key56 hash_xor_key56
#define hash_default_key64 hash_xor_key64
#endif
#endif
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