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authorJakub Kicinski <kuba@kernel.org>2020-07-29 00:47:58 +0300
committerSaeed Mahameed <saeedm@mellanox.com>2020-08-03 20:13:54 +0300
commit966e50597666d530b69de2abb9c83ff0a9bd3ee6 (patch)
tree64be01ad8586a2d61243ba51f7e93ad34834a971 /include/net
parentb206490940216542c68563699b279eed3c55107c (diff)
downloadlinux-966e50597666d530b69de2abb9c83ff0a9bd3ee6.tar.xz
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 <kuba@kernel.org> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/udp_tunnel.h5
1 files changed, 5 insertions, 0 deletions
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),
};
/**