Move some MACsec infrastructure like defines and functions,
in order to avoid code duplication for future drivers which
implements MACsec offload.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Reviewed-by: NBen Ben-Ishay <benishay@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>