K 10
svn:author
V 6
grehan
K 8
svn:date
V 27
2008-05-08T17:55:44.000000Z
K 7
svn:log
V 354
Fix panic and breakage for non-DMA ATA devices e.g. powermac macio cells.
Handle cases where dma function pointers may be NULL, and where
the max_iosize can't be derived from a DMA data structure. For
the latter, revert to the prior behaviour of using DFLTPHYS for
the max i/o size when there is no other data.

Reviewed by:		marcel
No objection by:	sos

END