C++ (Cpp) netdev_vport_priv示例

示例#1

文件： vport-netdev.c 项目： sandervrijders/ODS

int netdev_get_stats(const struct vport *vport, struct odp_vport_stats *stats)
{
    const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
    struct rtnl_link_stats64 *netdev_stats, storage;

    netdev_stats = dev_get_stats(netdev_vport->dev, &storage);
#else
    const struct net_device_stats *netdev_stats;

    netdev_stats = dev_get_stats(netdev_vport->dev);
#endif

    stats->rx_bytes		= netdev_stats->rx_bytes;
    stats->rx_packets	= netdev_stats->rx_packets;
    stats->tx_bytes		= netdev_stats->tx_bytes;
    stats->tx_packets	= netdev_stats->tx_packets;
    stats->rx_dropped	= netdev_stats->rx_dropped;
    stats->rx_errors	= netdev_stats->rx_errors;
    stats->rx_frame_err	= netdev_stats->rx_frame_errors;
    stats->rx_over_err	= netdev_stats->rx_over_errors;
    stats->rx_crc_err	= netdev_stats->rx_crc_errors;
    stats->tx_dropped	= netdev_stats->tx_dropped;
    stats->tx_errors	= netdev_stats->tx_errors;
    stats->collisions	= netdev_stats->collisions;

    return 0;
}

示例#2

文件： vport-internal_dev.c 项目： StonyBrookUniversity/ovs-vxlan

static int internal_dev_recv(struct vport *vport, struct sk_buff *skb)
{
	struct net_device *netdev = netdev_vport_priv(vport)->dev;
	int len;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
	if (unlikely(vlan_deaccel_tag(skb)))
		return 0;
#endif

	len = skb->len;

	skb_dst_drop(skb);
	nf_reset(skb);
	secpath_reset(skb);

	skb->dev = netdev;
	skb->pkt_type = PACKET_HOST;
	skb->protocol = eth_type_trans(skb, netdev);
	forward_ip_summed(skb, false);

	netif_rx(skb);

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
	netdev->last_rx = jiffies;
#endif

	return len;
}

示例#3

文件： vport-netdev.c 项目： ravikondamuru/openvswitch

static struct vport *netdev_create(const struct vport_parms *parms)
{
    struct vport *vport;
    struct netdev_vport *netdev_vport;
    int err;

    vport = ovs_vport_alloc(sizeof(struct netdev_vport),
                            &ovs_netdev_vport_ops, parms);
    if (IS_ERR(vport)) {
        err = PTR_ERR(vport);
        goto error;
    }

    netdev_vport = netdev_vport_priv(vport);

    netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
    if (!netdev_vport->dev) {
        err = -ENODEV;
        goto error_free_vport;
    }

    if (netdev_vport->dev->flags & IFF_LOOPBACK ||
            netdev_vport->dev->type != ARPHRD_ETHER ||
            ovs_is_internal_dev(netdev_vport->dev)) {
        err = -EINVAL;
        goto error_put;
    }

    rtnl_lock();
    err = netdev_master_upper_dev_link(netdev_vport->dev,
                                       get_dpdev(vport->dp));
    if (err)
        goto error_unlock;

    err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
                                     vport);
    if (err)
        goto error_master_upper_dev_unlink;

    dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
    dev_disable_lro(netdev_vport->dev);
#endif
    netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
    rtnl_unlock();

    netdev_init();
    return vport;

error_master_upper_dev_unlink:
    netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
error_unlock:
    rtnl_unlock();
error_put:
    dev_put(netdev_vport->dev);
error_free_vport:
    ovs_vport_free(vport);
error:
    return ERR_PTR(err);
}

示例#4

文件： vport-internal_dev.c 项目： ParrotSec/linux-psec

static int internal_dev_recv(struct vport *vport, struct sk_buff *skb)
{
	struct net_device *netdev = netdev_vport_priv(vport)->dev;
	int len;

	if (unlikely(!(netdev->flags & IFF_UP))) {
		kfree_skb(skb);
		return 0;
	}

	len = skb->len;

	skb_dst_drop(skb);
	nf_reset(skb);
	secpath_reset(skb);

	skb->dev = netdev;
	skb->pkt_type = PACKET_HOST;
	skb->protocol = eth_type_trans(skb, netdev);
	skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);

	netif_rx(skb);

	return len;
}

示例#5

文件： vport-netdev.c 项目： cardinal27513/ovs-vxlan

static struct vport *netdev_create(const struct vport_parms *parms)
{
	struct vport *vport;
	struct netdev_vport *netdev_vport;
	int err;

	vport = ovs_vport_alloc(sizeof(struct netdev_vport),
				&ovs_netdev_vport_ops, parms);
	if (IS_ERR(vport)) {
		err = PTR_ERR(vport);
		goto error;
	}

	netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
	if (!netdev_vport->dev) {
		err = -ENODEV;
		goto error_free_vport;
	}

	if (netdev_vport->dev->flags & IFF_LOOPBACK ||
	    netdev_vport->dev->type != ARPHRD_ETHER ||
	    ovs_is_internal_dev(netdev_vport->dev)) {
		err = -EINVAL;
		goto error_put;
	}

	rtnl_lock();
#ifdef HAVE_RHEL_OVS_HOOK
	rcu_assign_pointer(netdev_vport->dev->ax25_ptr, vport);
	atomic_inc(&nr_bridges);
	rcu_assign_pointer(openvswitch_handle_frame_hook, netdev_frame_hook);
#else
	err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
					 vport);
	if (err)
		goto error_unlock;
#endif

	dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
	dev_disable_lro(netdev_vport->dev);
#endif
	netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
	rtnl_unlock();

	return vport;

#ifndef HAVE_RHEL_OVS_HOOK
error_unlock:
#endif
	rtnl_unlock();
error_put:
	dev_put(netdev_vport->dev);
error_free_vport:
	ovs_vport_free(vport);
error:
	return ERR_PTR(err);
}

示例#6

文件： vport-netdev.c 项目： PterX/rt-n56u

static int netdev_send(struct vport *vport, struct sk_buff *skb)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
	int mtu = netdev_vport->dev->mtu;
	int len;

	if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
		net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
				     ovs_dp_name(vport->dp),
				     packet_length(skb), mtu);
		goto error;
	}

	if (unlikely(skb_warn_if_lro(skb)))
		goto error;

	skb->dev = netdev_vport->dev;
	len = skb->len;
	dev_queue_xmit(skb);

	return len;

error:
	kfree_skb(skb);
	ovs_vport_record_error(vport, VPORT_E_TX_DROPPED);
	return 0;
}

示例#7

文件： vport-netdev.c 项目： wenxueliu/ovs_note

static struct net_device *get_dpdev(const struct datapath *dp)
{
	struct vport *local;

	local = ovs_vport_ovsl(dp, OVSP_LOCAL);
	BUG_ON(!local);
	return netdev_vport_priv(local)->dev;
}

示例#8

文件： vport-netdev.c 项目： sandervrijders/ODS

static int netdev_destroy(struct vport *vport)
{
    struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

    dev_put(netdev_vport->dev);
    vport_free(vport);

    return 0;
}

示例#9

文件： vport-netdev.c 项目： sandervrijders/ODS

static int netdev_detach(struct vport *vport)
{
    struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

    netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
    netdev_rx_handler_unregister(netdev_vport->dev);
    dev_set_promiscuity(netdev_vport->dev, -1);

    return 0;
}

示例#10

文件： vport-netdev.c 项目： crazyideas21/swclone

int ovs_netdev_set_addr(struct vport *vport, const unsigned char *addr)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
	struct sockaddr sa;

	sa.sa_family = ARPHRD_ETHER;
	memcpy(sa.sa_data, addr, ETH_ALEN);

	return dev_set_mac_address(netdev_vport->dev, &sa);
}

示例#11

文件： vport-internal_dev.c 项目： openube/android_kernel_sony_c2305

static void internal_dev_destroy(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	netif_stop_queue(netdev_vport->dev);
	dev_set_promiscuity(netdev_vport->dev, -1);

	/* unregister_netdevice() waits for an RCU grace period. */
	unregister_netdevice(netdev_vport->dev);
}

示例#12

文件： vport-internal_dev.c 项目： MiniBlu/cm11_kernel_htc_msm8974a3ul

static void internal_dev_destroy(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	netif_stop_queue(netdev_vport->dev);
	dev_set_promiscuity(netdev_vport->dev, -1);

	
	unregister_netdevice(netdev_vport->dev);
}

示例#13

文件： vport-netdev.c 项目： CoerWatt/linux

static void netdev_destroy(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
	netdev_rx_handler_unregister(netdev_vport->dev);
	dev_set_promiscuity(netdev_vport->dev, -1);

	call_rcu(&netdev_vport->rcu, free_port_rcu);
}

示例#14

文件： vport-netdev.c 项目： wenxueliu/ovs_note

static void netdev_destroy(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	rtnl_lock();
	if (ovs_netdev_get_vport(netdev_vport->dev))
		ovs_netdev_detach_dev(vport);
	rtnl_unlock();

	call_rcu(&netdev_vport->rcu, free_port_rcu);
}

示例#15

文件： vport-netdev.c 项目： wenxueliu/ovs_note

//与 netdev_create 正好相反
void ovs_netdev_detach_dev(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	ASSERT_RTNL();
	netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
	netdev_rx_handler_unregister(netdev_vport->dev);
	netdev_upper_dev_unlink(netdev_vport->dev,
				netdev_master_upper_dev_get(netdev_vport->dev));
	dev_set_promiscuity(netdev_vport->dev, -1);
}

示例#16

文件： vport-netdev.c 项目： 3bsa/linux

static void netdev_destroy(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	rtnl_lock();
	if (netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH)
		ovs_netdev_detach_dev(vport);
	rtnl_unlock();

	call_rcu(&netdev_vport->rcu, free_port_rcu);
}

示例#17

文件： vport-netdev.c 项目： sandervrijders/ODS

static int netdev_send(struct vport *vport, struct sk_buff *skb)
{
    struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
    int len = skb->len;

    skb->dev = netdev_vport->dev;
    forward_ip_summed(skb);
    dev_queue_xmit(skb);

    return len;
}

示例#18

文件： vport-netdev.c 项目： crazyideas21/swclone

static void netdev_destroy(struct vport *vport)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
	netdev_rx_handler_unregister(netdev_vport->dev);
	dev_set_promiscuity(netdev_vport->dev, -1);

	synchronize_rcu();

	dev_put(netdev_vport->dev);
	ovs_vport_free(vport);
}

示例#19

文件： vport-netdev.c 项目： vonzhou/ovs1.9.0-note

/*
 * 重要！通过相应的参数进行网络设备的注册
 * 何时调用？
*/
static struct vport *netdev_create(const struct vport_parms *parms)
{
	struct vport *vport;
	struct netdev_vport *netdev_vport;  // 看vport_netdev.h中的定义
	int err;
	//根据具体的ovs_netdev_vport_ops和参数构造一个vport
	// 第一个参数代表私有数据的大小，这里正是要放struct netdev_vport
	vport = ovs_vport_alloc(sizeof(struct netdev_vport), &ovs_netdev_vport_ops, parms);
	if (IS_ERR(vport)) {
		err = PTR_ERR(vport);
		goto error;
	}

	netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
	if (!netdev_vport->dev) {
		err = -ENODEV;
		goto error_free_vport;
	}

	if (netdev_vport->dev->flags & IFF_LOOPBACK ||
	    netdev_vport->dev->type != ARPHRD_ETHER ||
	    ovs_is_internal_dev(netdev_vport->dev)) {
		err = -EINVAL;
		goto error_put;
	}
	/* 重要！就是设置net_device两个字段  netdev_rx_handler_register - register receive handler
     *      @dev: device to register a handler for
     *      @rx_handler: receive handler to register
     *      @rx_handler_data: data pointer that is used by rx handler
	*/
	err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook, vport);
	if (err)
		goto error_put;

	dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
	dev_disable_lro(netdev_vport->dev);
#endif
	netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;

	return vport;

error_put:
	dev_put(netdev_vport->dev);
error_free_vport:
	ovs_vport_free(vport);
error:
	return ERR_PTR(err);
}

示例#20

文件： vport-internal_dev.c 项目： 3null/linux

static struct vport *internal_dev_create(const struct vport_parms *parms)
{
	struct vport *vport;
	struct netdev_vport *netdev_vport;
	struct internal_dev *internal_dev;
	int err;

	vport = ovs_vport_alloc(sizeof(struct netdev_vport),
				&ovs_internal_vport_ops, parms);
	if (IS_ERR(vport)) {
		err = PTR_ERR(vport);
		goto error;
	}

	netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev),
					 parms->name, NET_NAME_UNKNOWN,
					 do_setup);
	if (!netdev_vport->dev) {
		err = -ENOMEM;
		goto error_free_vport;
	}

	dev_net_set(netdev_vport->dev, ovs_dp_get_net(vport->dp));
	internal_dev = internal_dev_priv(netdev_vport->dev);
	internal_dev->vport = vport;

	/* Restrict bridge port to current netns. */
	if (vport->port_no == OVSP_LOCAL)
		netdev_vport->dev->features |= NETIF_F_NETNS_LOCAL;

	rtnl_lock();
	err = register_netdevice(netdev_vport->dev);
	if (err)
		goto error_free_netdev;

	dev_set_promiscuity(netdev_vport->dev, 1);
	rtnl_unlock();
	netif_start_queue(netdev_vport->dev);

	return vport;

error_free_netdev:
	rtnl_unlock();
	free_netdev(netdev_vport->dev);
error_free_vport:
	ovs_vport_free(vport);
error:
	return ERR_PTR(err);
}

示例#21

文件： vport-netdev.c 项目： ravikondamuru/openvswitch

static void netdev_destroy(struct vport *vport)
{
    struct netdev_vport *netdev_vport = netdev_vport_priv(vport);

    netdev_exit();
    rtnl_lock();
    netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
    netdev_rx_handler_unregister(netdev_vport->dev);
    netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
    dev_set_promiscuity(netdev_vport->dev, -1);
    rtnl_unlock();

    call_rcu(&netdev_vport->rcu, free_port_rcu);
}

示例#22

文件： vport-internal_dev.c 项目： MiniBlu/cm11_kernel_htc_msm8974a3ul

static int internal_dev_recv(struct vport *vport, struct sk_buff *skb)
{
	struct net_device *netdev = netdev_vport_priv(vport)->dev;
	int len;

	len = skb->len;
	skb->dev = netdev;
	skb->pkt_type = PACKET_HOST;
	skb->protocol = eth_type_trans(skb, netdev);

	netif_rx(skb);

	return len;
}

示例#23

文件： vport-netdev.c 项目： sandervrijders/ODS

static int netdev_attach(struct vport *vport)
{
    struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
    int err;

    err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
                                     vport);
    if (err)
        return err;

    dev_set_promiscuity(netdev_vport->dev, 1);
    dev_disable_lro(netdev_vport->dev);
    netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;

    return 0;
}

示例#24

文件： vport-netdev.c 项目： sandervrijders/ODS

static struct vport *netdev_create(const char *name, const void __user *config)
{
    struct vport *vport;
    struct netdev_vport *netdev_vport;
    int err;

    vport = vport_alloc(sizeof(struct netdev_vport), &netdev_vport_ops);
    if (IS_ERR(vport)) {
        err = PTR_ERR(vport);
        goto error;
    }

    netdev_vport = netdev_vport_priv(vport);

    netdev_vport->dev = dev_get_by_name(&init_net, name);
    if (!netdev_vport->dev) {
        err = -ENODEV;
        goto error_free_vport;
    }

    if (netdev_vport->dev->flags & IFF_LOOPBACK ||
            netdev_vport->dev->type != ARPHRD_ETHER ||
            is_internal_dev(netdev_vport->dev)) {
        err = -EINVAL;
        goto error_put;
    }

    /* If we are using the vport stats layer initialize it to the current
     * values so we are roughly consistent with the device stats. */
    if (USE_VPORT_STATS) {
        struct odp_vport_stats stats;

        err = netdev_get_stats(vport, &stats);
        if (!err)
            vport_set_stats(vport, &stats);
    }

    return vport;

error_put:
    dev_put(netdev_vport->dev);
error_free_vport:
    vport_free(vport);
error:
    return ERR_PTR(err);
}

示例#25

文件： vport-netdev.c 项目： PterX/rt-n56u

static struct vport *netdev_create(const struct vport_parms *parms)
{
	struct vport *vport;
	struct netdev_vport *netdev_vport;
	int err;

	vport = ovs_vport_alloc(sizeof(struct netdev_vport),
				&ovs_netdev_vport_ops, parms);
	if (IS_ERR(vport)) {
		err = PTR_ERR(vport);
		goto error;
	}

	netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev = dev_get_by_name(&init_net, parms->name);
	if (!netdev_vport->dev) {
		err = -ENODEV;
		goto error_free_vport;
	}

	if (netdev_vport->dev->flags & IFF_LOOPBACK ||
	    netdev_vport->dev->type != ARPHRD_ETHER ||
	    ovs_is_internal_dev(netdev_vport->dev)) {
		err = -EINVAL;
		goto error_put;
	}

	err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
					 vport);
	if (err)
		goto error_put;

	dev_set_promiscuity(netdev_vport->dev, 1);
	netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;

	return vport;

error_put:
	dev_put(netdev_vport->dev);
error_free_vport:
	ovs_vport_free(vport);
error:
	return ERR_PTR(err);
}

示例#26

文件： vport-internal_dev.c 项目： MiniBlu/cm11_kernel_htc_msm8974a3ul

static struct vport *internal_dev_create(const struct vport_parms *parms)
{
	struct vport *vport;
	struct netdev_vport *netdev_vport;
	struct internal_dev *internal_dev;
	int err;

	vport = ovs_vport_alloc(sizeof(struct netdev_vport),
				&ovs_internal_vport_ops, parms);
	if (IS_ERR(vport)) {
		err = PTR_ERR(vport);
		goto error;
	}

	netdev_vport = netdev_vport_priv(vport);

	netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev),
					 parms->name, do_setup);
	if (!netdev_vport->dev) {
		err = -ENOMEM;
		goto error_free_vport;
	}

	internal_dev = internal_dev_priv(netdev_vport->dev);
	internal_dev->vport = vport;

	err = register_netdevice(netdev_vport->dev);
	if (err)
		goto error_free_netdev;

	dev_set_promiscuity(netdev_vport->dev, 1);
	netif_start_queue(netdev_vport->dev);

	return vport;

error_free_netdev:
	free_netdev(netdev_vport->dev);
error_free_vport:
	ovs_vport_free(vport);
error:
	return ERR_PTR(err);
}

示例#27

文件： vport-netdev.c 项目： wenxueliu/ovs_note

static int netdev_send(struct vport *vport, struct sk_buff *skb)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
	int mtu = netdev_vport->dev->mtu;
	int len;

	if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
		net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
				     netdev_vport->dev->name,
				     packet_length(skb), mtu);
		goto drop;
	}

	skb->dev = netdev_vport->dev;
	len = skb->len;
	dev_queue_xmit(skb);

	return len;

drop:
	kfree_skb(skb);
	return 0;
}

示例#28

文件： vport-internal_dev.c 项目： Grace-Liu/dpdk-ovs

static int internal_dev_recv(struct vport *vport, struct sk_buff *skb)
{
	struct net_device *netdev = netdev_vport_priv(vport)->dev;
	int len;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
	if (vlan_tx_tag_present(skb)) {
		if (unlikely(!__vlan_put_tag(skb,
					     skb->vlan_proto,
					     vlan_tx_tag_get(skb))))
			return 0;

		if (skb->ip_summed == CHECKSUM_COMPLETE)
			skb->csum = csum_add(skb->csum,
					     csum_partial(skb->data + (2 * ETH_ALEN),
							  VLAN_HLEN, 0));

		vlan_set_tci(skb, 0);
	}
#endif

	len = skb->len;

	skb_dst_drop(skb);
	nf_reset(skb);
	secpath_reset(skb);

	skb->dev = netdev;
	skb->pkt_type = PACKET_HOST;
	skb->protocol = eth_type_trans(skb, netdev);
	skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);

	netif_rx(skb);

	return len;
}

示例#29

文件： vport-netdev.c 项目： crazyideas21/swclone

static int netdev_send(struct vport *vport, struct sk_buff *skb)
{
	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
	int mtu = netdev_vport->dev->mtu;
	int len;

	if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
		if (net_ratelimit())
			pr_warn("%s: dropped over-mtu packet: %d > %d\n",
				ovs_dp_name(vport->dp), packet_length(skb), mtu);
		goto error;
	}

	if (unlikely(skb_warn_if_lro(skb)))
		goto error;

	skb->dev = netdev_vport->dev;
	forward_ip_summed(skb, true);

	if (vlan_tx_tag_present(skb) && !dev_supports_vlan_tx(skb->dev)) {
		int features;

		features = netif_skb_features(skb);

		if (!vlan_tso)
			features &= ~(NETIF_F_TSO | NETIF_F_TSO6 |
				      NETIF_F_UFO | NETIF_F_FSO);

		if (netif_needs_gso(skb, features)) {
			struct sk_buff *nskb;

			nskb = skb_gso_segment(skb, features);
			if (!nskb) {
				if (unlikely(skb_cloned(skb) &&
				    pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) {
					kfree_skb(skb);
					return 0;
				}

				skb_shinfo(skb)->gso_type &= ~SKB_GSO_DODGY;
				goto tag;
			}

			if (IS_ERR(nskb)) {
				kfree_skb(skb);
				return 0;
			}
			consume_skb(skb);
			skb = nskb;

			len = 0;
			do {
				nskb = skb->next;
				skb->next = NULL;

				skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb));
				if (likely(skb)) {
					len += skb->len;
					vlan_set_tci(skb, 0);
					dev_queue_xmit(skb);
				}

				skb = nskb;
			} while (skb);

			return len;
		}

tag:
		skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb));
		if (unlikely(!skb))
			return 0;
		vlan_set_tci(skb, 0);
	}

	len = skb->len;
	dev_queue_xmit(skb);

	return len;

error:
	kfree_skb(skb);
	ovs_vport_record_error(vport, VPORT_E_TX_DROPPED);
	return 0;
}

示例#30

文件： vport-netdev.c 项目： crazyideas21/swclone

int ovs_netdev_get_mtu(const struct vport *vport)
{
	const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
	return netdev_vport->dev->mtu;
}