Public bug reported:

Consider a topology with two chassis, A and B:
* A acts as a distributed gateway connected to provider network on tagged VLAN 
and has GENEVE tunnel configured towards chassis B.
* B hosts the target instance.
* From a third machine connected to the provider network we can observe:
  * Only first ICMP ECHO reply from target instance is forwarded.
  * Attempt to establish TCP connection fails.

If we revert commit [0] the symptoms disappear.

0: 06b4eac9c4be ("net/mlx5e: Don't offload internal port if filter
device is out device")

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2085018

Title:
  Commit "net/mlx5e: Don't offload internal port if filter device is out
  device" breaks OpenStack/OVN distributed gateway use case

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