/* SPDX-License-Identifier: Apache-2.0 * Copyright(c) 2021 Cisco Systems, Inc. */ #undef BIHASH_TYPE #undef BIHASH_KVP_PER_PAGE #undef BIHASH_32_64_SVM #undef BIHASH_ENABLE_STATS #undef BIHASH_KVP_AT_BUCKET_LEVEL #undef BIHASH_LAZY_INSTANTIATE #undef BIHASH_BUCKET_PREFETCH_CACHE_LINES #undef BIHASH_USE_HEAP #define BIHASH_TYPE _12_4 #define BIHASH_KVP_PER_PAGE 4 #define BIHASH_KVP_AT_BUCKET_LEVEL 0 #define BIHASH_LAZY_INSTANTIATE 1 #define BIHASH_BUCKET_PREFETCH_CACHE_LINES 1 #define BIHASH_USE_HEAP 1 #ifndef __included_bihash_12_4_h__ #define __included_bihash_12_4_h__ #include <vppinfra/crc32.h> #include <vppinfra/heap.h> #include <vppinfra/format.h> #include <vppinfra/pool.h> #include <vppinfra/xxhash.h> typedef union { struct { u32 key[3]; u32 value; }; u64 as_u64[2]; } clib_bihash_kv_12_4_t; static inline int clib_bihash_is_free_12_4 (const clib_bihash_kv_12_4_t *v) { /* Free values are clib_memset to 0xff, check a bit... */ if (v->as_u64[0] == ~0ULL && v->value == ~0) return 1; return 0; } static inline u64 clib_bihash_hash_12_4 (const clib_bihash_kv_12_4_t *v) { #ifdef clib_crc32c_uses_intrinsics return clib_crc32c ((u8 *) v->key, 12); #else u64 tmp = v->as_u64[0] ^ v->key[2]; return clib_xxhash (tmp); #endif } static inline u8 * format_bihash_kvp_12_4 (u8 *s, va_list *args) { clib_bihash_kv_12_4_t *v = va_arg (*args, clib_bihash_kv_12_4_t *); s = format (s, "key %u %u %u value %u", v->key[0], v->key[1], v->key[2], v->value); return s; } static inline int clib_bihash_key_compare_12_4 (u32 *a, u32 *b) { #if defined(CLIB_HAVE_VEC128) u32x4 v = (*(u32x4u *) a) ^ (*(u32x4u *) b); v[3] = 0; return u32x4_is_all_zero (v); #else return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0; #endif } #undef __included_bihash_template_h__ #include <vppinfra/bihash_template.h> #endif /* __included_bihash_12_4_h__ */