From 966e50597666d530b69de2abb9c83ff0a9bd3ee6 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Tue, 28 Jul 2020 14:47:58 -0700 Subject: udp_tunnel: add the ability to hard-code IANA VXLAN mlx5 has the IANA VXLAN port (4789) hard coded by the device, instead of being added dynamically when tunnels are created. To support this add a workaround flag to struct udp_tunnel_nic_info. Skipping updates for the port is fairly trivial, dumping the hard coded port via ethtool requires some code duplication. The port is not a part of any real table, we dump it in a special table which has no tunnel types supported and only one entry. This is the last known workaround / hack needed to convert all drivers to the new infra. Signed-off-by: Jakub Kicinski Signed-off-by: Saeed Mahameed --- include/net/udp_tunnel.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/net') diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h index dd20ce99740c..94bb7a882250 100644 --- a/include/net/udp_tunnel.h +++ b/include/net/udp_tunnel.h @@ -193,6 +193,11 @@ enum udp_tunnel_nic_info_flags { UDP_TUNNEL_NIC_INFO_OPEN_ONLY = BIT(1), /* Device supports only IPv4 tunnels */ UDP_TUNNEL_NIC_INFO_IPV4_ONLY = BIT(2), + /* Device has hard-coded the IANA VXLAN port (4789) as VXLAN. + * This port must not be counted towards n_entries of any table. + * Driver will not receive any callback associated with port 4789. + */ + UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN = BIT(3), }; /** -- cgit v1.2.3