
When running Linux kernel 3.14, TSO/GRO could be enabled on compute nodes to improve performances. To improve north-south performances, this feature is needed on Neutron L3 agent nodes. This patch add TSO management for Neutron L3 agent and also change the behavor for previous patch in ensuring that we use a kernel >= 3.14 for both hypervisor & compute nodes. Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>