From: Stephen Hemminger <redacted>
Date: Wed, 6 Oct 2010 06:58:45 +0900

On Tue, 05 Oct 2010 00:18:00 -0700 (PDT)
David Miller [off-list ref] wrote:

quoted

From: Stanislaw Gruszka <redacted>
Date: Wed, 29 Sep 2010 11:33:23 +0200

quoted

Skge devices installed on some Gigabyte motherboards are not able to
perform 64 dma correctly due to board PCI implementation, so limit
DMA to 32bit if such boards are detected.

Bug was reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=447489

Signed-off-by: Stanislaw Gruszka <redacted>
Tested-by: Luya Tshimbalanga <redacted>

Stephen?  Can I get an ACK or some kind of other status on this?

I was hoping to find the hardware somewhere to dig deeper into
this. But until I know more please apply the patch. There are
two possibilities that still exist, 1) it is true for all devices
on this motherboard (in which cases it should be a PCI quirk),
2) it is a driver bug. The test was going to be putting a skge
pci card in a slot on the MB.

Ok, thanks Stephen, I'll apply his patch for now.