Debug support for Netronome(R) NFP4000/NFP6000 NIC drivers

configname: CONFIG_NFP_DEBUG

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>Debug support for Netronome(R) NFP4000/NFP6000 NIC drivers
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Enable extra sanity checks and debugfs support in
Netronome(R) NFP4000/NFP6000 NIC drivers.
Note: selecting this option may adversely impact
performance.