Date: Wed, 30 Aug 2006 19:21:43 -0700 From: "Jack Vogel" <jfvogel@gmail.com> To: "Andrew Gallatin" <gallatin@cs.duke.edu> Cc: Robert Watson <rwatson@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>, Prafulla Deuskar <pdeuskar@freebsd.org>, Alan Cox <alc@cs.rice.edu>, Mohan Srinivasan <mohan_srinivasan@yahoo.com> Subject: Re: RFC: FreeBSD I/OAT driver Message-ID: <2a41acea0608301921y60765c3dvf15646039c20b4da@mail.gmail.com> In-Reply-To: <17654.10986.963763.949073@grasshopper.cs.duke.edu> References: <2a41acea0608291624u4ee91cdej2d87aa19e2e5ba62@mail.gmail.com> <17653.51598.910897.127606@grasshopper.cs.duke.edu> <20060830204128.GA73801@hub.freebsd.org> <17654.10986.963763.949073@grasshopper.cs.duke.edu>
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On 8/30/06, Andrew Gallatin <gallatin@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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