2017-12-19 15:49:03 +00:00
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2017 Intel Corporation
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2017-10-04 03:12:22 +00:00
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*/
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#ifndef _RTE_MEMBER_X86_H_
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#define _RTE_MEMBER_X86_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <x86intrin.h>
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#if defined(RTE_MACHINE_CPUFLAG_AVX2)
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static inline int
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update_entry_search_avx(uint32_t bucket_id, member_sig_t tmp_sig,
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struct member_ht_bucket *buckets,
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member_set_t set_id)
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{
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uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
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_mm256_load_si256((__m256i const *)buckets[bucket_id].sigs),
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_mm256_set1_epi16(tmp_sig)));
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if (hitmask) {
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uint32_t hit_idx = __builtin_ctzl(hitmask) >> 1;
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buckets[bucket_id].sets[hit_idx] = set_id;
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return 1;
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}
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return 0;
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}
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static inline int
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search_bucket_single_avx(uint32_t bucket_id, member_sig_t tmp_sig,
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struct member_ht_bucket *buckets,
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member_set_t *set_id)
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{
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uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
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_mm256_load_si256((__m256i const *)buckets[bucket_id].sigs),
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_mm256_set1_epi16(tmp_sig)));
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while (hitmask) {
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uint32_t hit_idx = __builtin_ctzl(hitmask) >> 1;
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if (buckets[bucket_id].sets[hit_idx] != RTE_MEMBER_NO_MATCH) {
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*set_id = buckets[bucket_id].sets[hit_idx];
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return 1;
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}
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hitmask &= ~(3U << ((hit_idx) << 1));
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}
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return 0;
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}
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static inline void
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search_bucket_multi_avx(uint32_t bucket_id, member_sig_t tmp_sig,
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struct member_ht_bucket *buckets,
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uint32_t *counter,
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uint32_t match_per_key,
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member_set_t *set_id)
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{
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uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
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_mm256_load_si256((__m256i const *)buckets[bucket_id].sigs),
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_mm256_set1_epi16(tmp_sig)));
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while (hitmask) {
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uint32_t hit_idx = __builtin_ctzl(hitmask) >> 1;
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if (buckets[bucket_id].sets[hit_idx] != RTE_MEMBER_NO_MATCH) {
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set_id[*counter] = buckets[bucket_id].sets[hit_idx];
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(*counter)++;
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if (*counter >= match_per_key)
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return;
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}
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hitmask &= ~(3U << ((hit_idx) << 1));
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}
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RTE_MEMBER_X86_H_ */
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