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

 */

​

#include <linux/if_vlan.h>

#include <linux/kernel.h>

#include <linux/netdevice.h>

#include <linux/etherdevice.h>

#include <linux/ethtool.h>

#include <linux/skbuff.h>

​

#include <net/dst.h>

#include <net/xfrm.h>

#include <net/rtnetlink.h>

​

#include "datapath.h"

#include "vport-internal_dev.h"

#include "vport-netdev.h"

​

struct internal_dev {

    struct vport *vport;

};

​

static struct vport_ops ovs_internal_vport_ops;

​

static struct internal_dev *internal_dev_priv(struct net_device *netdev)

{

    return netdev_priv(netdev);

}

​

/* Called with rcu_read_lock_bh. */

static netdev_tx_t

internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)

{

    int len, err;

​

    len = skb->len;

    rcu_read_lock();

    err = ovs_vport_receive(internal_dev_priv(netdev)->vport, skb, NULL);

    rcu_read_unlock();

​

    if (likely(!err)) {

        struct pcpu_sw_netstats *tstats = this_cpu_ptr(netdev->tstats);

​

        u64_stats_update_begin(&tstats->syncp);

        tstats->tx_bytes += len;

        tstats->tx_packets++;

        u64_stats_update_end(&tstats->syncp);

    } else {