[mirror_ovs.git] / datapath / flow.h

/*
 * Copyright (c) 2009 Nicira Networks.
 * Distributed under the terms of the GNU GPL version 2.
 *
 * Significant portions of this file may be copied from parts of the Linux
 * kernel, by Linus Torvalds and others.
 */

#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 *);

int flow_init(void);
void flow_exit(void);

#endif /* flow.h */
Commit	Line	Data
a14bc59f BP	1	/*
	2	* Copyright (c) 2009 Nicira Networks.
	3	* Distributed under the terms of the GNU GPL version 2.
	4	*
	5	* Significant portions of this file may be copied from parts of the Linux
	6	* kernel, by Linus Torvalds and others.
	7	*/
	8
064af421 BP	9	#ifndef FLOW_H
	10	#define FLOW_H 1
	11
	12	#include <linux/kernel.h>
	13	#include <linux/spinlock.h>
	14	#include <linux/types.h>
	15	#include <linux/rcupdate.h>
	16	#include <linux/gfp.h>
	17
	18	#include "openvswitch/datapath-protocol.h"
	19
	20	struct sk_buff;
	21
	22	struct sw_flow_actions {
	23	struct rcu_head rcu;
	24	unsigned int n_actions;
	25	union odp_action actions[];
	26	};
	27
	28	struct sw_flow {
	29	struct rcu_head rcu;
	30	struct odp_flow_key key;
	31	struct sw_flow_actions *sf_acts;
	32
	33	struct timespec used; /* Last used time. */
	34
	35	u8 ip_tos; /* IP TOS value. */
	36
	37	spinlock_t lock; /* Lock for values below. */
	38	u64 packet_count; /* Number of packets matched. */
	39	u64 byte_count; /* Number of bytes matched. */
	40	u8 tcp_flags; /* Union of seen TCP flags. */
	41	};
	42
	43	extern struct kmem_cache *flow_cache;
	44
	45	struct sw_flow_actions *flow_actions_alloc(size_t n_actions);
	46	void flow_free(struct sw_flow *);
	47	void flow_deferred_free(struct sw_flow *);
	48	void flow_deferred_free_acts(struct sw_flow_actions *);
	49	int flow_extract(struct sk_buff , u16 in_port, struct odp_flow_key );
	50	void flow_used(struct sw_flow , struct sk_buff );
	51
064af421 BP	52	int flow_init(void);
	53	void flow_exit(void);
	54
	55	#endif /* flow.h */