Date: Tue, 8 Jul 2008 00:04:30 -0700 From: "Kip Macy" <kip.macy@gmail.com> To: Paul <paul@gtcomm.net> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Andre Oppermann <andre@freebsd.org>, Mike Tancsa <mike@sentex.net> Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <b1fa29170807080004w75ba44a0qe17efbb9352b8836@mail.gmail.com> In-Reply-To: <4872C161.6080105@gtcomm.net> References: <4867420D.7090406@gtcomm.net> <4869B025.9080006@gtcomm.net> <486A7E45.3030902@gtcomm.net> <486A8F24.5010000@gtcomm.net> <486A9A0E.6060308@elischer.org> <486B41D5.3060609@gtcomm.net> <4871E85C.8090907@freebsd.org> <48726422.7050703@gtcomm.net> <200807080107.m6817XxO021966@lava.sentex.ca> <4872C161.6080105@gtcomm.net>
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On Mon, Jul 7, 2008 at 6:22 PM, Paul <paul@gtcomm.net> wrote: > I read through the IGB driver, and it says 82575/6 only... which is the new > chip Intel is releasing on the cards this month 2 port > and october 4 port, but the chips are on some of the motherboards right now. > Why can't it also use the 82571 ? doesn't make any sense.. I haven't tried > it but just browsing the driver source > doesn't look like it will work. The igb driver has been written to remove a lot of the cruft that has accumulated to work around deficiencies in earlier 8257x hardware. Although it supports "legacy" descriptor handling it has a new mode of descriptor handling that is ostensibly better. I don't have access to the data sheets for pre-zoar hardware so I'm not sure what it would take to support multiple queues on that hardware. -Kip
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