053d093524
Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Id28299a188feefa1899d835fd499f018af95d81b
78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
/*
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* Copyright (c) 2012 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SRC_VPPINFRA_FLOWHASH_24_16_H_
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#define SRC_VPPINFRA_FLOWHASH_24_16_H_
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#ifdef __included_flowhash_template_h__
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#undef __included_flowhash_template_h__
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#endif
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#include <vppinfra/clib.h>
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#include <vppinfra/xxhash.h>
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#include <vppinfra/crc32.h>
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typedef struct {
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u64 as_u64[3];
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} flowhash_skey_24_16_t;
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typedef struct {
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u64 as_u64[3];
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} flowhash_lkey_24_16_t;
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typedef struct {
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u64 as_u64[2];
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} flowhash_value_24_16_t;
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#define FLOWHASH_TYPE _24_16
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#include <vppinfra/flowhash_template.h>
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#undef FLOWHASH_TYPE
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static_always_inline
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u32 flowhash_hash_24_16(flowhash_lkey_24_16_t *k)
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{
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#ifdef clib_crc32c_uses_intrinsics
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return clib_crc32c ((u8 *) &k->as_u64[0], 24);
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#else
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u64 val = 0;
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val ^= k->as_u64[0];
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val ^= k->as_u64[1];
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val ^= k->as_u64[2];
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return (u32)clib_xxhash (val);
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#endif
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}
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static_always_inline
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u8 flowhash_cmp_key_24_16(flowhash_skey_24_16_t *a,
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flowhash_lkey_24_16_t *b)
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{
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u8 val = 0;
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val |= (a->as_u64[0] != b->as_u64[0]);
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val |= (a->as_u64[1] != b->as_u64[1]);
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val |= (a->as_u64[2] != b->as_u64[2]);
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return val;
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}
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static_always_inline
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void flowhash_cpy_key_24_16(flowhash_skey_24_16_t *dst,
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flowhash_lkey_24_16_t *src)
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{
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dst->as_u64[0] = src->as_u64[0];
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dst->as_u64[1] = src->as_u64[1];
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dst->as_u64[2] = src->as_u64[2];
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}
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#endif /* SRC_VPPINFRA_FLOWHASH_24_16_H_ */
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