We discussed and this is actually a bunch of commits:
1-      commit aac6f11f (”app/testpmd: add ethernet peer command”)  - this 
patch is needed for our test framework
=> Small change to testpmd, likely not in stable branch but needed for tests
=> While not strictly a bug, I think enabling all the extra CI we get (that 
needs this) is fair, and it is sort of ok, even later on for SRU purposes (hope 
the SRU team agrees)
=> 

2-      commit 643958cf (“net/mlx4: fix broadcast Rx”)       -  bug fix for mlx4
=> Qeued for next 17.11 stable release

3-      commit c55a1667 (“net/mlx5: fix flow creation with a single target 
queue”)  - bug fix for mlx5
=> Per MLX this should actually already be in the stable branch; Double check 
when applying
=> It is not in the 17.11.2 tarball, likely will be 17.11.3 later on

Changes #2/#3 are MLX only, recommended by the manufacturer and part of a not 
yet enabled feature - so next to no regression potential.
Change #1 is part of testpmd, which is only a helper tool not part of a prod 
workload which diminishes the risk of the change a bit. The code adds a new 
feature thou (On the good side it does less modification on existing paths).

I have integrated the patches to the ppa [1] which we use to verify
enabling MLX drivers in Bionic. It built fine, I'd ask you to verify if
this fixes the issues you have spotted.

[1]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3250

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https://bugs.launchpad.net/bugs/1770964

Title:
  [Bionic][RSS][ConnectX5]:testpmd stop receiving the packets after
  restarting the ports

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