CONFIG_LIQUIDIO is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

Cavium LiquidIO support

modulename: liquidio.ko


Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>PCI support
└─>PCI support
└─>Cavium LiquidIO support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This driver supports Cavium LiquidIO Intelligent Server Adapters
based on CN66XX, CN68XX and CN23XX chips.

To compile this driver as a module, choose M here: the module
will be called liquidio. This is recommended.

source code: