ndo_gso_check() was recently introduced to allow NICs to report the offloading support that they have on a per-skb basis. Add an implementation for this driver which checks for something that looks like VXLAN.
Implementation shamelessly stolen from Tom Herbert: http://thread.gmane.org/gmane.linux.network/332428/focus=333111 Signed-off-by: Joe Stringer <joestrin...@nicira.com> --- drivers/net/ethernet/emulex/benet/be_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 9a18e79..bd52b8d 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -4423,6 +4423,17 @@ static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family, } #endif +static bool be_gso_check(struct sk_buff *skb, struct net_device *dev) +{ + if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) && + (skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB) || + skb_inner_mac_header(skb) - skb_transport_header(skb) != 16)) + return false; + + return true; +} + static const struct net_device_ops be_netdev_ops = { .ndo_open = be_open, .ndo_stop = be_close, @@ -4451,6 +4462,7 @@ static const struct net_device_ops be_netdev_ops = { .ndo_add_vxlan_port = be_add_vxlan_port, .ndo_del_vxlan_port = be_del_vxlan_port, #endif + .ndo_gso_check = be_gso_check, }; static void be_netdev_init(struct net_device *netdev) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
