veth: add netpoll support
It is trivial to add netpoll support to veth, since it is not a stacked device, we don't need to setup and clean up netpoll. Reported-by: Stefan Priebe <s.priebe@profihost.ag> Cc: "David S. Miller" <davem@davemloft.net> Cc: Neil Horman <nhorman@tuxdriver.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
13ec7a6b9d
commit
bb446c19fe
|
@ -248,6 +248,21 @@ static void veth_dev_free(struct net_device *dev)
|
|||
free_netdev(dev);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_NET_POLL_CONTROLLER
|
||||
static void veth_poll_controller(struct net_device *dev)
|
||||
{
|
||||
/* veth only receives frames when its peer sends one
|
||||
* Since it's a synchronous operation, we are guaranteed
|
||||
* never to have pending data when we poll for it so
|
||||
* there is nothing to do here.
|
||||
*
|
||||
* We need this though so netpoll recognizes us as an interface that
|
||||
* supports polling, which enables bridge devices in virt setups to
|
||||
* still use netconsole
|
||||
*/
|
||||
}
|
||||
#endif /* CONFIG_NET_POLL_CONTROLLER */
|
||||
|
||||
static const struct net_device_ops veth_netdev_ops = {
|
||||
.ndo_init = veth_dev_init,
|
||||
.ndo_open = veth_open,
|
||||
|
@ -257,6 +272,9 @@ static const struct net_device_ops veth_netdev_ops = {
|
|||
.ndo_get_stats64 = veth_get_stats64,
|
||||
.ndo_set_rx_mode = veth_set_multicast_list,
|
||||
.ndo_set_mac_address = eth_mac_addr,
|
||||
#ifdef CONFIG_NET_POLL_CONTROLLER
|
||||
.ndo_poll_controller = veth_poll_controller,
|
||||
#endif
|
||||
};
|
||||
|
||||
#define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
|
||||
|
|
Loading…
Reference in New Issue