Before this patch, when migrating from ML2/OVS to ML2/OVN, we
removed the VIF details that are not used by OVN. However, this
changes how the VIFs are plugged if the hybrid iptables firewall
was used.
In order to not break the migration, we want to keep whatever
plugging was used in ML2/OVS. For this reason, this patch is
leaving the VIF details untouched.
The consequence is that, after migration, whatever workloads
used the hybrid plugging will remain like that. Newly created
VIFs will be plugged to the OVS bridge directly. As a result,
the migration to OVN won't require moving to the OVS firewall
first while in ML2/OVS.
This patch is also removing the constraint that prevented the
migration if the hybrid firewall was used.
Signed-off-by: Daniel Alvarez Sanchez <dalvarez@redhat.com>
Change-Id: Iad4fae7af54cc502ac0ba02a911cdd4fefa13535
5f2eaadf40