NFP4000/NFP6000 Advanced buffer management NIC support

configname: CONFIG_NFP_APP_ABM_NIC

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>NFP4000/NFP6000 Advanced buffer management NIC support
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Enable driver support for Advanced buffer management NIC on NFP.
ABM NIC allows advanced configuration of queuing and scheduling
of packets, including ECN marking. Say Y, if you are planning to
use one of the NFP4000 and NFP6000 platforms which support this
functionality.
Code will be built into the nfp.ko driver.