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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017 Intel Corporation
*/
#ifndef _RTE_MEMBER_X86_H_
#define _RTE_MEMBER_X86_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <x86intrin.h>
#if defined(RTE_MACHINE_CPUFLAG_AVX2)
static inline int
update_entry_search_avx(uint32_t bucket_id, member_sig_t tmp_sig,
struct member_ht_bucket *buckets,
member_set_t set_id)
{
uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
_mm256_load_si256((__m256i const *)buckets[bucket_id].sigs),
_mm256_set1_epi16(tmp_sig)));
if (hitmask) {
uint32_t hit_idx = __builtin_ctzl(hitmask) >> 1;
buckets[bucket_id].sets[hit_idx] = set_id;
return 1;
}
return 0;
}
static inline int
search_bucket_single_avx(uint32_t bucket_id, member_sig_t tmp_sig,
struct member_ht_bucket *buckets,
member_set_t *set_id)
{
uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
_mm256_load_si256((__m256i const *)buckets[bucket_id].sigs),
_mm256_set1_epi16(tmp_sig)));
while (hitmask) {
uint32_t hit_idx = __builtin_ctzl(hitmask) >> 1;
if (buckets[bucket_id].sets[hit_idx] != RTE_MEMBER_NO_MATCH) {
*set_id = buckets[bucket_id].sets[hit_idx];
return 1;
}
hitmask &= ~(3U << ((hit_idx) << 1));
}
return 0;
}
static inline void
search_bucket_multi_avx(uint32_t bucket_id, member_sig_t tmp_sig,
struct member_ht_bucket *buckets,
uint32_t *counter,
uint32_t match_per_key,
member_set_t *set_id)
{
uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
_mm256_load_si256((__m256i const *)buckets[bucket_id].sigs),
_mm256_set1_epi16(tmp_sig)));
while (hitmask) {
uint32_t hit_idx = __builtin_ctzl(hitmask) >> 1;
if (buckets[bucket_id].sets[hit_idx] != RTE_MEMBER_NO_MATCH) {
set_id[*counter] = buckets[bucket_id].sets[hit_idx];
(*counter)++;
if (*counter >= match_per_key)
return;
}
hitmask &= ~(3U << ((hit_idx) << 1));
}
}
#endif
#ifdef __cplusplus
}
#endif
#endif /* _RTE_MEMBER_X86_H_ */
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