RFC: FreeBSD I/OAT driver

Jack Vogel jfvogel at gmail.com
Thu Aug 31 02:21:45 UTC 2006


On 8/30/06, Andrew Gallatin <gallatin at cs.duke.edu> wrote:
>
> Prafulla Deuskar writes:
>  > Dual core Woodcrest
>  > Bensley Chipset
>
> How can one tell before purchase which machines/chipsets have I/OAT?
>
> We just bought a pair of Dell 2950s with a "5000X" Chipset
> (8086:25c0), and there is no I/OAT DMA engine that I can see (no
> device 8086:1a38).
>
> Drew
>

Well, I am only guessing about this after the fact, but it looks like
the 5000P which is a server chipset, and is the one in the SuperMicro
X7 systems, is the one with I/OAT.

I went to Intel's site and I gotta admit, I dont see an easy way to
tell this.

Have to talk to some sales/marketing types though, not some
lowly engineer like me :)

Cheers,

Jack


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