[RFC 0/4] udp_tunnel: convert mlx5 to the new udp_tunnel infrastructure

[Jakub Kicinski <kuba@kernel.org>]

This set converts the last driver not using the new infrastructure - mlx5.

We need a small amount of special handling as mlx5 expects IANA VXLAN
port to always be programmed into the device. ethtool will show such
ports in a separate, type-less, fake table, at the end:

Tunnel information for eth0:
  UDP port table 0: 
    Size: 7
    Types: vxlan
    No entries
  UDP port table 1: 
    Size: 1
    Types: none (static entries)
    Entries (1):
        port 4789, vxlan

Posting as an RFC because the netdevsim patches will conflict with
the Intel series but otherwise the work should be independent.
Reviews and testing would be much appreciated.

Jakub Kicinski (4):
  udp_tunnel: add the ability to hard-code IANA VXLAN
  mlx5: convert to new udp_tunnel infrastructure
  netdevsim: support the static IANA VXLAN port flag
  selftests: net: add a test for static UDP tunnel ports

 Documentation/networking/ethtool-netlink.rst  |  3 +
 drivers/net/ethernet/mellanox/mlx5/core/en.h  |  2 -
 .../net/ethernet/mellanox/mlx5/core/en_main.c | 88 ++-----------------
 .../net/ethernet/mellanox/mlx5/core/en_rep.c  |  2 -
 .../ethernet/mellanox/mlx5/core/lib/vxlan.c   | 87 +++++++++---------
 .../ethernet/mellanox/mlx5/core/lib/vxlan.h   |  6 +-
 drivers/net/netdevsim/netdevsim.h             |  1 +
 drivers/net/netdevsim/udp_tunnels.c           |  4 +
 include/net/udp_tunnel.h                      |  5 ++
 net/ethtool/tunnels.c                         | 70 +++++++++++++--
 net/ipv4/udp_tunnel_nic.c                     |  7 ++
 .../drivers/net/netdevsim/udp_tunnel_nic.sh   | 58 ++++++++++++
 12 files changed, 190 insertions(+), 143 deletions(-)

-- 
2.26.2