/* * Copyright (c) 2015 Cisco and/or its affiliates. * 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. */ #undef BIHASH_TYPE #define BIHASH_TYPE _24_8 #define BIHASH_KVP_PER_PAGE 4 #ifndef __included_bihash_24_8_h__ #define __included_bihash_24_8_h__ #include <vppinfra/heap.h> #include <vppinfra/format.h> #include <vppinfra/pool.h> #include <vppinfra/xxhash.h> typedef struct { u64 key[3]; u64 value; } clib_bihash_kv_24_8_t; static inline int clib_bihash_is_free_24_8 (const clib_bihash_kv_24_8_t * v) { /* Free values are memset to 0xff, check a bit... */ if (v->key[0] == ~0ULL && v->value == ~0ULL) return 1; return 0; } static inline u64 clib_bihash_hash_24_8 (const clib_bihash_kv_24_8_t * v) { #if __SSE4_2__ u32 value = 0; value = _mm_crc32_u64 (value, v->key[0]); value = _mm_crc32_u64 (value, v->key[1]); value = _mm_crc32_u64 (value, v->key[2]); return value; #else u64 tmp = v->key[0] ^ v->key[1] ^ v->key[2]; return clib_xxhash (tmp); #endif } static inline u8 * format_bihash_kvp_24_8 (u8 * s, va_list * args) { clib_bihash_kv_24_8_t *v = va_arg (*args, clib_bihash_kv_24_8_t *); s = format (s, "key %llu %llu %llu value %llu", v->key[0], v->key[1], v->key[2], v->value); return s; } static inline int clib_bihash_key_compare_24_8 (const u64 * a, const u64 * b) { return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0; } #undef __included_bihash_template_h__ #include <vppinfra/bihash_template.h> #endif /* __included_bihash_24_8_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */