Commit a8170d2b authored by Singhai, Anjali's avatar Singhai, Anjali Committed by David S. Miller
Browse files

geneve: Add geneve udp port offload for ethernet devices 



Add ndo_ops to add/del UDP ports to a device that supports geneve
offload.

v2: Comment fix.

Signed-off-by: default avatarAnjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: default avatarKiran Patil <kiran.patil@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 566178f8

drivers/net/geneve.c

+23 −0
Original line number Diff line number Diff line
@@ -380,8 +380,11 @@ static struct socket *geneve_create_sock(struct net *net, bool ipv6, 


static void geneve_notify_add_rx_port(struct geneve_sock *gs)

{

	struct net_device *dev;

	struct sock *sk = gs->sock->sk;

	struct net *net = sock_net(sk);

	sa_family_t sa_family = sk->sk_family;

	__be16 port = inet_sk(sk)->inet_sport;

	int err;



	if (sa_family == AF_INET) {
@@ -390,6 +393,14 @@ static void geneve_notify_add_rx_port(struct geneve_sock *gs) 
			pr_warn("geneve: udp_add_offload failed with status %d\n",

				err);

	}



	rcu_read_lock();

	for_each_netdev_rcu(net, dev) {

		if (dev->netdev_ops->ndo_add_geneve_port)

			dev->netdev_ops->ndo_add_geneve_port(dev, sa_family,

							     port);

	}

	rcu_read_unlock();

}



static int geneve_hlen(struct genevehdr *gh)
@@ -530,8 +541,20 @@ static struct geneve_sock *geneve_socket_create(struct net *net, __be16 port, 


static void geneve_notify_del_rx_port(struct geneve_sock *gs)

{

	struct net_device *dev;

	struct sock *sk = gs->sock->sk;

	struct net *net = sock_net(sk);

	sa_family_t sa_family = sk->sk_family;

	__be16 port = inet_sk(sk)->inet_sport;



	rcu_read_lock();

	for_each_netdev_rcu(net, dev) {

		if (dev->netdev_ops->ndo_del_geneve_port)

			dev->netdev_ops->ndo_del_geneve_port(dev, sa_family,

							     port);

	}



	rcu_read_unlock();



	if (sa_family == AF_INET)

		udp_del_offload(&gs->udp_offloads);

include/linux/netdevice.h

+19 −1
Original line number Diff line number Diff line
@@ -1013,6 +1013,19 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev, 
 *	a new port starts listening. The operation is protected by the

 *	vxlan_net->sock_lock.

 *

 * void (*ndo_add_geneve_port)(struct net_device *dev,

 *			      sa_family_t sa_family, __be16 port);

 *	Called by geneve to notify a driver about the UDP port and socket

 *	address family that geneve is listnening to. It is called only when

 *	a new port starts listening. The operation is protected by the

 *	geneve_net->sock_lock.

 *

 * void (*ndo_del_geneve_port)(struct net_device *dev,

 *			      sa_family_t sa_family, __be16 port);

 *	Called by geneve to notify the driver about a UDP port and socket

 *	address family that geneve is not listening to anymore. The operation

 *	is protected by the geneve_net->sock_lock.

 *

 * void (*ndo_del_vxlan_port)(struct  net_device *dev,

 *			      sa_family_t sa_family, __be16 port);

 *	Called by vxlan to notify the driver about a UDP port and socket
@@ -1217,7 +1230,12 @@ struct net_device_ops { 
	void			(*ndo_del_vxlan_port)(struct  net_device *dev,

						      sa_family_t sa_family,

						      __be16 port);



	void			(*ndo_add_geneve_port)(struct  net_device *dev,

						       sa_family_t sa_family,

						       __be16 port);

	void			(*ndo_del_geneve_port)(struct  net_device *dev,

						       sa_family_t sa_family,

						       __be16 port);

	void*			(*ndo_dfwd_add_station)(struct net_device *pdev,

							struct net_device *dev);

	void			(*ndo_dfwd_del_station)(struct net_device *pdev,