CONFIG_BLK_DEV_IDEDMA_SFF (not configurable)

configname: CONFIG_BLK_DEV_IDEDMA_SFF

Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support
└─>BLK_DEV_IDEDMA_SFF
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
depends
CONFIG_IDE