datapath: Implement flow table re-hashing.

[sliver-openvswitch.git] / datapath / flow.h

diff --git a/datapath/flow.h b/datapath/flow.h
index 36e738d..61310d0 100644 (file)
--- a/datapath/flow.h
+++ b/datapath/flow.h
@@ -96,7 +96,7 @@ struct sw_flow_key {
 
 struct sw_flow {
        struct rcu_head rcu;
-       struct hlist_node  hash_node;
+       struct hlist_node hash_node[2];
        u32 hash;
 
        struct sw_flow_key key;
@@ -174,6 +174,9 @@ struct flow_table {
        struct flex_array *buckets;
        unsigned int count, n_buckets;
        struct rcu_head rcu;
+       int node_ver;
+       u32 hash_seed;
+       bool keep_flows;
 };
 
 static inline int ovs_flow_tbl_count(struct flow_table *table)
@@ -192,6 +195,7 @@ void ovs_flow_tbl_destroy(struct flow_table *table);
 void ovs_flow_tbl_deferred_destroy(struct flow_table *table);
 struct flow_table *ovs_flow_tbl_alloc(int new_size);
 struct flow_table *ovs_flow_tbl_expand(struct flow_table *table);
+struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table);
 void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow);
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow);
 u32 ovs_flow_hash(const struct sw_flow_key *key, int key_len);