vxlan: Add support for UDP checksums (v4 sending, v6 zero csums)

Added VXLAN link configuration for sending UDP checksums, and allowing
TX and RX of UDP6 checksums.

Also, call common iptunnel_handle_offloads and added GSO support for
checksums.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 622e7910b8cc..b38534895db5 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -319,6 +319,9 @@ enum {
         IFLA_VXLAN_PORT,        /* destination port */
         IFLA_VXLAN_GROUP6,
         IFLA_VXLAN_LOCAL6,
+        IFLA_VXLAN_UDP_CSUM,
+        IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
+        IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
         __IFLA_VXLAN_MAX
 };
 #define IFLA_VXLAN_MAX  (__IFLA_VXLAN_MAX - 1)