linux-imx

/*

 * Copyright (c) 2007-2012 Nicira, Inc.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of version 2 of the GNU General Public

 * License as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA

 */

​

#ifndef VPORT_H

#define VPORT_H 1

​

#include <linux/if_tunnel.h>

#include <linux/list.h>

#include <linux/netlink.h>

#include <linux/openvswitch.h>

#include <linux/reciprocal_div.h>

#include <linux/skbuff.h>

#include <linux/spinlock.h>

#include <linux/u64_stats_sync.h>

​

#include "datapath.h"

​

struct vport;

struct vport_parms;

​

/* The following definitions are for users of the vport subsytem: */

​

int ovs_vport_init(void);

void ovs_vport_exit(void);

​

struct vport *ovs_vport_add(const struct vport_parms *);

void ovs_vport_del(struct vport *);

​

struct vport *ovs_vport_locate(const struct net *net, const char *name);

​

void ovs_vport_get_stats(struct vport *, struct ovs_vport_stats *);

​

int ovs_vport_set_options(struct vport *, struct nlattr *options);

int ovs_vport_get_options(const struct vport *, struct sk_buff *);

​

int ovs_vport_set_upcall_portids(struct vport *, const struct nlattr *pids);

int ovs_vport_get_upcall_portids(const struct vport *, struct sk_buff *);

u32 ovs_vport_find_upcall_portid(const struct vport *, struct sk_buff *);

​

/**

 * struct vport_portids - array of netlink portids of a vport.

 *                        must be protected by rcu.

 * @rn_ids: The reciprocal value of @n_ids.

 * @rcu: RCU callback head for deferred destruction.

 * @n_ids: Size of @ids array.

 * @ids: Array storing the Netlink socket pids to be used for packets received

 * on this port that miss the flow table.

 */

struct vport_portids {

    struct reciprocal_value rn_ids;

    struct rcu_head rcu;

    u32 n_ids;

    u32 ids[];

};

​

/**

 * struct vport - one port within a datapath

 * @dev: Pointer to net_device.

 * @dp: Datapath to which this port belongs.

 * @upcall_portids: RCU protected 'struct vport_portids'.

 * @port_no: Index into @dp's @ports array.

 * @hash_node: Element in @dev_table hash table in vport.c.

 * @dp_hash_node: Element in @datapath->ports hash table in datapath.c.

 * @ops: Class structure.

 * @detach_list: list used for detaching vport in net-exit call.

 * @rcu: RCU callback head for deferred destruction.

 */

struct vport {

    struct net_device *dev;

    struct datapath *dp;

    struct vport_portids __rcu *upcall_portids;

    u16 port_no;

​

    struct hlist_node hash_node;

    struct hlist_node dp_hash_node;

    const struct vport_ops *ops;

​