mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels

Browse source

When a GRE tunnel is bound to an underlay netdevice and that netdevice is
moved to a different VRF, that could cause two tunnels to have the same
underlay local address in the same VRF. Linux in this situation dispatches
the traffic according to the tunnel key (or lack thereof), but that cannot
be offloaded to Spectrum devices.

Detect this situation and unoffload the two impacted tunnels when it
happens.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

...

This commit is contained in:

Petr Machata 2019-11-24 09:48:02 +02:00 • committed by Jakub Kicinski

parent c392bccf2c

commit c5731cc5eb

1 changed files with 38 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

39

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

View file