Micrel KS8851 SPI

modulename: ks8851_common.ko

and/or

ks8851.ko

configname: CONFIG_KS8851

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet (10 or 100Mbit)
└─>Micrel KS8851 SPI
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
SPI driver for Micrel KS8851 SPI attached network chip.

source code:
drivers/net/ks8851.c