diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vppinfra/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/vppinfra/bihash_32_8.h | 107 |
2 files changed, 108 insertions, 0 deletions
diff --git a/src/vppinfra/CMakeLists.txt b/src/vppinfra/CMakeLists.txt index 8ec843ad2ca..200cfb1eded 100644 --- a/src/vppinfra/CMakeLists.txt +++ b/src/vppinfra/CMakeLists.txt @@ -101,6 +101,7 @@ set(VPPINFRA_HEADERS sanitizer.h bihash_16_8.h bihash_24_8.h + bihash_32_8.h bihash_40_8.h bihash_48_8.h bihash_8_8.h diff --git a/src/vppinfra/bihash_32_8.h b/src/vppinfra/bihash_32_8.h new file mode 100644 index 00000000000..0935fcce184 --- /dev/null +++ b/src/vppinfra/bihash_32_8.h @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2021 Rubicon Communications, LLC. + * 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 +#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 _32_8 +#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_32_8_h__ +#define __included_bihash_32_8_h__ + +#include <vppinfra/crc32.h> +#include <vppinfra/heap.h> +#include <vppinfra/format.h> +#include <vppinfra/pool.h> +#include <vppinfra/xxhash.h> + +typedef struct +{ + u64 key[4]; + u64 value; +} clib_bihash_kv_32_8_t; + +static inline int +clib_bihash_is_free_32_8 (const clib_bihash_kv_32_8_t *v) +{ + /* Free values are clib_memset to 0xff, check a bit... */ + if (v->key[0] == ~0ULL && v->value == ~0ULL) + return 1; + return 0; +} + +static inline u64 +clib_bihash_hash_32_8 (const clib_bihash_kv_32_8_t *v) +{ +#ifdef clib_crc32c_uses_intrinsics + return clib_crc32c ((u8 *) v->key, 32); +#else + u64 tmp = v->key[0] ^ v->key[1] ^ v->key[2] ^ v->key[3]; + return clib_xxhash (tmp); +#endif +} + +static inline u8 * +format_bihash_kvp_32_8 (u8 *s, va_list *args) +{ + clib_bihash_kv_32_8_t *v = va_arg (*args, clib_bihash_kv_32_8_t *); + + s = format (s, "key %llu %llu %llu %llu value %llu", v->key[0], v->key[1], + v->key[2], v->key[3], v->value); + return s; +} + +static inline int +clib_bihash_key_compare_32_8 (u64 *a, u64 *b) +{ +#if defined(CLIB_HAVE_VEC512) + u64x8 v = u64x8_load_unaligned (a) ^ u64x8_load_unaligned (b); + return (u64x8_is_zero_mask (v) & 0xf) == 0; +#elif defined(CLIB_HAVE_VEC256) + u64x4 v = u64x4_load_unaligned (a) ^ u64x4_load_unaligned (b); + return u64x4_is_all_zero (v); +#elif defined(CLIB_HAVE_VEC128) && \ + defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE) + u64x2 v; + v = u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b); + v |= u64x2_load_unaligned (a + 2) ^ u64x2_load_unaligned (b + 2); + return u64x2_is_all_zero (v); +#else + return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]) | (a[3] ^ b[3])) == 0; +#endif +} + +#undef __included_bihash_template_h__ +#include <vppinfra/bihash_template.h> + +#endif /* __included_bihash_32_8_h__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |