Hi Ben,
Please don't take this patch :)
While, it does work around some issues I'm tracking down, it can lead
to worse ones if we are unable to configure the larger DMA window, or if
some functions in a PE don't use 64-bit DMA masks.
Thanks,
Nish
On 26.10.2011 [15:43:23 -0700], Nishanth
The DDW feature relies on there being sufficient TCE space to allocate
for the requested DMA window size. The default window uses up some of
that space, though, and it is recommended to first remove the default
window and then allocate the larger window advertised by firmware. Do
this by
