Universal tap device

[Jiri Pirko <jiri@resnulli.us>]

Hi all.                                                                  
                                                                         
Looking at macvtap and thinking about the tap solutions in general, I    
think it would be handly to have some universal tap device.              
                                                                         
This could use rx_handler to hook onto any netdev and provide chardev    
tap-like iface to it. Using that, one can just hook onto macvlan device  
and macvtap would not be needed.                                         
                                                                         
This would allow other scenarios like vxlan-tap, vlan-tap, bond-tap or   
whatever.                                                                
                                                                         
Does this idea seem to be reasonable?                                    
                                                                         
Thanks                                                                   
                                                                         
Jiri