X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_hash%2Frte_cuckoo_hash.h;h=85be49d3bbe7a1b1c57dfc79548d61d39b53cbc7;hb=5b38d8cd4663;hp=0548c97f04b04fbceecd7c33b1fdcdd667a08e23;hpb=90fefe78bfe0da46c92cc925be2f5c1dffc49711;p=dpdk.git

diff --git a/lib/librte_hash/rte_cuckoo_hash.h b/lib/librte_hash/rte_cuckoo_hash.h
index 0548c97f04..85be49d3bb 100644
--- 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 */
@@ -168,6 +168,11 @@ struct rte_hash {
 	struct lcore_cache *local_free_slots;
 	/**< Local cache per lcore, storing some indexes of the free slots */
 
+	/* RCU config */
+	struct rte_hash_rcu_config *hash_rcu_cfg;
+	/**< HASH RCU QSBR configuration structure */
+	struct rte_rcu_qsbr_dq *dq;	/**< RCU QSBR defer queue. */
+
 	/* Fields used in lookup */
 
 	uint32_t key_len __rte_cache_aligned;
@@ -211,6 +216,13 @@ 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;
@@ -223,4 +235,7 @@ struct queue_node {
 	int prev_slot;               /* Parent(slot) in search path */
 };
 
+/** @internal Default RCU defer queue entries to reclaim in one go. */
+#define RTE_HASH_RCU_DQ_RECLAIM_MAX	16
+
 #endif