Generic ATA support

modulename: ata_generic.ko

configname: CONFIG_ATA_GENERIC

Linux Kernel Configuration
└─>Device Drivers
└─>Serial ATA and Parallel ATA drivers (libata)
└─>PCI support
└─>Generic ATA support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This option enables support for generic BIOS configured
ATA controllers via the new ATA layer

If unsure, say N.

source code:
drivers/ata/ata_generic.c