diff options
Diffstat (limited to 'VNFs/DPPD-PROX/hash_utils.h')
| -rw-r--r-- | VNFs/DPPD-PROX/hash_utils.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/hash_utils.h b/VNFs/DPPD-PROX/hash_utils.h new file mode 100644 index 00000000..a2536ffb --- /dev/null +++ b/VNFs/DPPD-PROX/hash_utils.h @@ -0,0 +1,42 @@ +/* +// Copyright (c) 2010-2017 Intel Corporation +// +// 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. +*/ + +#ifndef _HASH_UTILS_H_ +#define _HASH_UTILS_H_ + +#include <rte_common.h> +#include <rte_version.h> + +struct rte_table_hash; + +/* Take DPDK 2.2.0 ABI change into account: offset 0 now means first byte of mbuf struct + * see http://www.dpdk.org/browse/dpdk/commit/?id=ba92d511ddacf863fafaaa14c0577f30ee57d092 + */ +#if RTE_VERSION >= RTE_VERSION_NUM(2,2,0,0) +#define HASH_METADATA_OFFSET(offset) (sizeof(struct rte_mbuf) + (offset)) +#else +#define HASH_METADATA_OFFSET(offset) (offset) +#endif + +/* Wrap crc32 hash function to match that required for rte_table */ +uint64_t hash_crc32(void* key, uint32_t key_size, uint64_t seed); + +void print_hash_table_size(const struct rte_table_hash *h); +void print_hash_table(const struct rte_table_hash *h); + +uint64_t get_bucket_key8(void* table, uint32_t bucket_idx, void** key, void** entries); +uint64_t get_bucket(void* table, uint32_t bucket_idx, void** key, void** entries); +#endif /* _HASH_UTILS_H_ */ |