BUILD_BUG_ON(sizeof(struct sw_flow_key) != 44);
}
+/* We keep actions as a separate structure because we need to be able to
+ * swap them out atomically when the modify command comes from a Flow
+ * Modify message. */
+struct sw_flow_actions {
+ unsigned int n_actions;
+ struct rcu_head rcu;
+
+ struct ofp_action actions[0];
+};
+
/* Locking:
*
* - Readers must take rcu_read_lock and hold it the entire time that the flow
uint16_t priority; /* Only used on entries with wildcards. */
uint16_t idle_timeout; /* Idle time before discarding (seconds). */
uint16_t hard_timeout; /* Hard expiration time (seconds) */
- unsigned long used; /* Last used time (in jiffies). */
+ unsigned long used; /* Last used time (in jiffies). */
- /* FIXME? Probably most flows have only a single action. */
- unsigned int n_actions;
- struct ofp_action *actions;
+ struct sw_flow_actions *sf_acts;
/* For use by table implementation. */
struct list_head node;
struct sw_flow *flow_alloc(int n_actions, gfp_t flags);
void flow_free(struct sw_flow *);
void flow_deferred_free(struct sw_flow *);
+void flow_deferred_free_acts(struct sw_flow_actions *);
+void flow_replace_acts(struct sw_flow *, const struct ofp_action *, int);
int flow_extract(struct sk_buff *, uint16_t in_port, struct sw_flow_key *);
void flow_extract_match(struct sw_flow_key* to, const struct ofp_match* from);
void flow_fill_match(struct ofp_match* to, const struct sw_flow_key* from);