Currently each interface has an 'rx-mode' (set vpp kernel-interfaces vpptap1 rx-mode and vpp settings interface eth0 rx-mode) which can be configured independently.
Implement set vpp settings interface-rx-mode <polling|interrupt|adaptive> which will configure all interfaces and consider limitation of supporting the feature by NIC.
If some of NIC doesn't support the feature, throw an ConfigError.
set vpp kernel-interfaces vpptap1 rx-mode and vpp settings interface eth0 rx-mode should be deleted from the CLI.