This patch was discussed here already.
https://mail.openvswitch.org/pipermail/ovs-dev/2017-July/336145.html
We think it needs more work.
-Original Message-
From: Ilya Maximets
Date: Friday, July 21, 2017 at 5:51 AM
To: "ovs-dev@openvswitch.org" , Darrell Ball
Cc: Heetae Ahn , Daniele
Reconfiguration of HW NICs may lead to packet drops.
In current model all physical ports will be reconfigured each
time number of PMD threads changed. Since we not stopping
threads on pmd-cpu-mask changes, this patch will help to further
decrease port's downtime by setting the maximum possible numb