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SubjectRe: [PATCH] atl1: disable 64bit DMA
Jay L. T. Cornwall wrote:
> Chris Snook wrote:
>
>> What boards have we seen this on? It's quite possible this is:
>
> I can reproduce on an Asus P5K with a Core 2 Duo E6600.
>
> lspci identifies the controller as:
> 02:00.0 Ethernet controller: Attansic Technology Corp. L1 Gigabit
> Ethernet Adapter (rev b0)
>
> dmesg notes the PCI-DMA mapping implementation:
> PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
>

I had a hunch this was on Intel. I'd rather just disable this when swiotlb is
in use, unless we get more complaints. It's probably ultimately a BIOS quirk
anyway.

-- Chris
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