/* * 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 _8_8 #define BIHASH_KVP_PER_PAGE 4 #ifndef __included_bihash_8_8_h__ #define __included_bihash_8_8_h__ #include <vppinfra/heap.h> #include <vppinfra/format.h> #include <vppinfra/pool.h> #include <vppinfra/xxhash.h> #if __SSE4_2__ #include <x86intrin.h> #endif /** 8 octet key, 8 octet key value pair */ typedef struct { u64 key; /**< the key */ u64 value; /**< the value */ } clib_bihash_kv_8_8_t; /** Decide if a clib_bihash_kv_8_8_t instance is free @param v- pointer to the (key,value) pair */ static inline int clib_bihash_is_free_8_8 (clib_bihash_kv_8_8_t * v) { if (v->key == ~0ULL && v->value == ~0ULL) return 1; return 0; } /** Hash a clib_bihash_kv_8_8_t instance @param v - pointer to the (key,value) pair, hash the key (only) */ static inline u64 clib_bihash_hash_8_8 (clib_bihash_kv_8_8_t * v) { /* Note: to torture-test linear scan, make this fn return a constant */ #if __SSE4_2__ return _mm_crc32_u64 (0, v->key); #else return clib_xxhash (v->key); #endif } /** Format a clib_bihash_kv_8_8_t instance @param s - u8 * vector under construction @param args (vararg) - the (key,value) pair to format @return s - the u8 * vector under construction */ static inline u8 * format_bihash_kvp_8_8 (u8 * s, va_list * args) { clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *); s = format (s, "key %llu value %llu", v->key, v->value); return s; } /** Compare two clib_bihash_kv_8_8_t instances @param a - first key @param b - second key */ static inline int clib_bihash_key_compare_8_8 (u64 a, u64 b) { return a == b; } #undef __included_bihash_template_h__ #include <vppinfra/bihash_template.h> #endif /* __included_bihash_8_8_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */