Comment 65 for bug 110636

I'm not sure why this was left marked as New because it was declined and considered invalid a long time ago. It is very much intentional that libata does not support manual configuration of dma mode by the Linux Kernel developers. If libata is not automatically detecting and using the best mode that the chipset supports, a new bug should be filed stating that libata is not activating dma mode on that specific chipset.