Nathan Whitehorn a0a3479c06 Disable ATAPI DMA unconditionally on Apple Kauai ATA controllers, like it
is on the MacIO ones. It appears to be unreliable on all DBDMA-based
controllers for unknown reasons, which should be figured out eventually.

Tested by:	Torfinn Ingolfsen
MFC after:	1 week
2011-01-23 17:20:11 +00:00
..
2010-10-25 15:41:12 +00:00