1 files changed, 49 insertions, 0 deletions
diff --git a/datapath/flow.h b/datapath/flow.h
new file mode 100644
index 000000000..55efede1b
--- /dev/null
+++ b/datapath/flow.h
@@ -0,0 +1,49 @@
+#ifndef FLOW_H
+#define FLOW_H 1
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/rcupdate.h>
+#include <linux/gfp.h>
+
+#include "openvswitch/datapath-protocol.h"
+
+struct sk_buff;
+
+struct sw_flow_actions {
+	struct rcu_head rcu;
+	unsigned int n_actions;
+	union odp_action actions[];
+};
+
+struct sw_flow {
+	struct rcu_head rcu;
+	struct odp_flow_key key;
+	struct sw_flow_actions *sf_acts;
+
+	struct timespec used;	/* Last used time. */
+
+	u8 ip_tos;		/* IP TOS value. */
+
+	spinlock_t lock;	/* Lock for values below. */
+	u64 packet_count;	/* Number of packets matched. */
+	u64 byte_count;		/* Number of bytes matched. */
+	u8 tcp_flags;		/* Union of seen TCP flags. */
+};
+
+extern struct kmem_cache *flow_cache;
+
+struct sw_flow_actions *flow_actions_alloc(size_t n_actions);
+void flow_free(struct sw_flow *);
+void flow_deferred_free(struct sw_flow *);
+void flow_deferred_free_acts(struct sw_flow_actions *);
+int flow_extract(struct sk_buff *, u16 in_port, struct odp_flow_key *);
+void flow_used(struct sw_flow *, struct sk_buff *);
+
+void print_flow(const struct odp_flow_key *);
+
+int flow_init(void);
+void flow_exit(void);
+
+#endif /* flow.h */