@@ -75,6 +75,7 @@ enum {
NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */
NETIF_F_HW_ESP_BIT, /* Hardware ESP transformation offload */
NETIF_F_HW_ESP_TX_CSUM_BIT, /* ESP with TX checksum offload */
+ NETIF_F_RX_UDP_TUNNEL_PORT_BIT, /* Offload of RX port for UDP tunnels */
/*
* Add your fresh new feature above and remember to update
@@ -138,6 +139,7 @@ enum {
#define NETIF_F_HW_TC __NETIF_F(HW_TC)
#define NETIF_F_HW_ESP __NETIF_F(HW_ESP)
#define NETIF_F_HW_ESP_TX_CSUM __NETIF_F(HW_ESP_TX_CSUM)
+#define NETIF_F_RX_UDP_TUNNEL_PORT __NETIF_F(RX_UDP_TUNNEL_PORT)
#define for_each_netdev_feature(mask_addr, bit) \
for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)
@@ -7530,6 +7530,12 @@ int register_netdevice(struct net_device *dev)
*/
dev->hw_features |= NETIF_F_SOFT_FEATURES;
dev->features |= NETIF_F_SOFT_FEATURES;
+
+ if (dev->netdev_ops->ndo_udp_tunnel_add) {
+ dev->features |= NETIF_F_RX_UDP_TUNNEL_PORT;
+ dev->hw_features |= NETIF_F_RX_UDP_TUNNEL_PORT;
+ }
+
dev->wanted_features = dev->features & dev->hw_features;
if (!(dev->flags & IFF_LOOPBACK))
@@ -105,6 +105,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
[NETIF_F_HW_TC_BIT] = "hw-tc-offload",
[NETIF_F_HW_ESP_BIT] = "esp-hw-offload",
[NETIF_F_HW_ESP_TX_CSUM_BIT] = "esp-tx-csum-hw-offload",
+ [NETIF_F_RX_UDP_TUNNEL_PORT_BIT] = "rx-udp_tunnel-port-offload",
};
static const char
This adds a new netdevice feature, so that the offloading of RX port for UDP tunnels can be disabled by the administrator on some netdevices, using the "rx-udp_tunnel-port-offload" feature in ethtool. This feature is set for all devices that provide ndo_udp_tunnel_add. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> --- include/linux/netdev_features.h | 2 ++ net/core/dev.c | 6 ++++++ net/core/ethtool.c | 1 + 3 files changed, 9 insertions(+)