rte_hash(3) DPDK rte_hash(3) NAME rte_hash SYNOPSIS #include <rte_cuckoo_hash.h> Data Fields char name [RTE_HASH_NAMESIZE] uint32_t entries uint32_t num_buckets struct rte_ring * free_slots struct lcore_cache * local_free_slots struct rte_hash_rcu_config * hash_rcu_cfg struct rte_rcu_qsbr_dq * dq uint32_t key_len uint8_t hw_trans_mem_support uint8_t use_local_cache uint8_t readwrite_concur_support uint8_t ext_table_support uint8_t no_free_on_del uint8_t readwrite_concur_lf_support uint8_t writer_takes_lock rte_hash_function hash_func uint32_t hash_func_init_val rte_hash_cmp_eq_t rte_hash_custom_cmp_eq enum cmp_jump_table_case cmp_jump_table_idx unsigned int sig_cmp_fn uint32_t bucket_bitmask uint32_t key_entry_size void * key_store struct rte_hash_bucket * buckets rte_rwlock_t * readwrite_lock struct rte_hash_bucket * buckets_ext struct rte_ring * free_ext_bkts uint32_t * tbl_chng_cnt Detailed Description A hash table structure. Definition at line 149 of file rte_cuckoo_hash.h. Field Documentation char name[RTE_HASH_NAMESIZE] Name of the hash. Definition at line 150 of file rte_cuckoo_hash.h. uint32_t entries Total table entries. Definition at line 151 of file rte_cuckoo_hash.h. uint32_t num_buckets Number of buckets in table. Definition at line 152 of file rte_cuckoo_hash.h. struct rte_ring* free_slots Ring that stores all indexes of the free slots in the key table Definition at line 154 of file rte_cuckoo_hash.h. struct lcore_cache* local_free_slots Local cache per lcore, storing some indexes of the free slots Definition at line 157 of file rte_cuckoo_hash.h. struct rte_hash_rcu_config* hash_rcu_cfg HASH RCU QSBR configuration structure Definition at line 161 of file rte_cuckoo_hash.h. struct rte_rcu_qsbr_dq* dq RCU QSBR defer queue. Definition at line 163 of file rte_cuckoo_hash.h. uint32_t key_len Length of hash key. Definition at line 167 of file rte_cuckoo_hash.h. uint8_t hw_trans_mem_support If hardware transactional memory is used. Definition at line 169 of file rte_cuckoo_hash.h. uint8_t use_local_cache If multi-writer support is enabled, use local cache to allocate key-store slots. Definition at line 171 of file rte_cuckoo_hash.h. uint8_t readwrite_concur_support If read-write concurrency support is enabled Definition at line 175 of file rte_cuckoo_hash.h. uint8_t ext_table_support Enable extendable bucket table Definition at line 177 of file rte_cuckoo_hash.h. uint8_t no_free_on_del If key index should be freed on calling rte_hash_del_xxx APIs. If this is set, rte_hash_free_key_with_position must be called to free the key index associated with the deleted entry. This flag is enabled by default. Definition at line 178 of file rte_cuckoo_hash.h. uint8_t readwrite_concur_lf_support If read-write concurrency lock free support is enabled Definition at line 184 of file rte_cuckoo_hash.h. uint8_t writer_takes_lock Indicates if the writer threads need to take lock Definition at line 186 of file rte_cuckoo_hash.h. rte_hash_function hash_func Function used to calculate hash. Definition at line 188 of file rte_cuckoo_hash.h. uint32_t hash_func_init_val Init value used by hash_func. Definition at line 189 of file rte_cuckoo_hash.h. rte_hash_cmp_eq_t rte_hash_custom_cmp_eq Custom function used to compare keys. Definition at line 190 of file rte_cuckoo_hash.h. enum cmp_jump_table_case cmp_jump_table_idx Indicates which compare function to use. Definition at line 192 of file rte_cuckoo_hash.h. unsigned int sig_cmp_fn Indicates which signature compare function to use. Definition at line 194 of file rte_cuckoo_hash.h. uint32_t bucket_bitmask Bitmask for getting bucket index from hash signature. Definition at line 196 of file rte_cuckoo_hash.h. uint32_t key_entry_size Size of each key entry. Definition at line 198 of file rte_cuckoo_hash.h. void* key_store Table storing all keys and data Definition at line 200 of file rte_cuckoo_hash.h. struct rte_hash_bucket* buckets Table with buckets storing all the hash values and key indexes to the key table. Definition at line 201 of file rte_cuckoo_hash.h. rte_rwlock_t* readwrite_lock Read-write lock thread-safety. Definition at line 205 of file rte_cuckoo_hash.h. struct rte_hash_bucket* buckets_ext Extra buckets array Definition at line 206 of file rte_cuckoo_hash.h. struct rte_ring* free_ext_bkts Ring of indexes of free buckets Definition at line 207 of file rte_cuckoo_hash.h. uint32_t* tbl_chng_cnt Indicates if the hash table changed from last read. Definition at line 215 of file rte_cuckoo_hash.h. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Aug 27 2026 rte_hash(3)
NAME | SYNOPSIS | Detailed Description | Field Documentation | Author
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