The field is used for setting a flood profile for lookup of KVD entry for
NVE underlay. As the other uses of flood profile, this references a traffic
type-to-offset mapping, except here it is not applied to PGT offsets, but
KVD offsets.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>