netdevsim: add UDP tunnel port offload support

Add UDP tunnel port handlers to our fake driver so we can test
the core infra.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index 2908e0a0d6e1..9d0d18026434 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -22,6 +22,7 @@
 #include <net/netlink.h>
 #include <net/pkt_cls.h>
 #include <net/rtnetlink.h>
+#include <net/udp_tunnel.h>
 
 #include "netdevsim.h"
 
@@ -257,6 +258,8 @@ static const struct net_device_ops nsim_netdev_ops = {
 	.ndo_setup_tc		= nsim_setup_tc,
 	.ndo_set_features	= nsim_set_features,
 	.ndo_bpf		= nsim_bpf,
+	.ndo_udp_tunnel_add	= udp_tunnel_nic_add_port,
+	.ndo_udp_tunnel_del	= udp_tunnel_nic_del_port,
 	.ndo_get_devlink_port	= nsim_get_devlink_port,
 };
 
@@ -299,10 +302,14 @@ nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port)
 	SET_NETDEV_DEV(dev, &ns->nsim_bus_dev->dev);
 	dev->netdev_ops = &nsim_netdev_ops;
 
+	err = nsim_udp_tunnels_info_create(nsim_dev, dev);
+	if (err)
+		goto err_free_netdev;
+
 	rtnl_lock();
 	err = nsim_bpf_init(ns);
 	if (err)
-		goto err_free_netdev;
+		goto err_utn_destroy;
 
 	nsim_ipsec_init(ns);
 
@@ -317,6 +324,8 @@ err_ipsec_teardown:
 	nsim_ipsec_teardown(ns);
 	nsim_bpf_uninit(ns);
 	rtnl_unlock();
+err_utn_destroy:
+	nsim_udp_tunnels_info_destroy(dev);
 err_free_netdev:
 	free_netdev(dev);
 	return ERR_PTR(err);
@@ -331,6 +340,7 @@ void nsim_destroy(struct netdevsim *ns)
 	nsim_ipsec_teardown(ns);
 	nsim_bpf_uninit(ns);
 	rtnl_unlock();
+	nsim_udp_tunnels_info_destroy(dev);
 	free_netdev(dev);
 }