net/i40e: fix bitmap free

[dpdk.git] / lib / librte_hash / rte_cuckoo_hash.h

diff --git a/lib/librte_hash/rte_cuckoo_hash.h b/lib/librte_hash/rte_cuckoo_hash.h
index eacdaa8..345de6b 100644 (file)
--- a/lib/librte_hash/rte_cuckoo_hash.h
+++ b/lib/librte_hash/rte_cuckoo_hash.h
@@ -124,7 +124,7 @@ const rte_hash_cmp_eq_t cmp_jump_table[NUM_KEY_CMP_CASES] = {
 
 struct lcore_cache {
        unsigned len; /**< Cache len */
-       void *objs[LCORE_CACHE_SIZE]; /**< Cache objects */
+       uint32_t objs[LCORE_CACHE_SIZE]; /**< Cache objects */
 } __rte_cache_aligned;
 
 /* Structure that stores key-value pair */
@@ -141,6 +141,7 @@ struct rte_hash_key {
 enum rte_hash_sig_compare_function {
        RTE_HASH_COMPARE_SCALAR = 0,
        RTE_HASH_COMPARE_SSE,
+       RTE_HASH_COMPARE_NEON,
        RTE_HASH_COMPARE_NUM
 };
 
@@ -210,6 +211,13 @@ struct rte_hash {
        rte_rwlock_t *readwrite_lock; /**< Read-write lock thread-safety. */
        struct rte_hash_bucket *buckets_ext; /**< Extra buckets array */
        struct rte_ring *free_ext_bkts; /**< Ring of indexes of free buckets */
+       /* Stores index of an empty ext bkt to be recycled on calling
+        * rte_hash_del_xxx APIs. When lock free read-write concurrency is
+        * enabled, an empty ext bkt cannot be put into free list immediately
+        * (as readers might be using it still). Hence freeing of the ext bkt
+        * is piggy-backed to freeing of the key index.
+        */
+       uint32_t *ext_bkt_to_free;
        uint32_t *tbl_chng_cnt;
        /**< Indicates if the hash table changed from last read. */
 } __rte_cache_aligned;