Freebsd IP Forwarding performance (question,
and some info) [7-stable, current, em, smp]
stefan.lambrev at moneybookers.com
Tue Jul 8 13:40:19 UTC 2008
Kip Macy wrote:
> On Mon, Jul 7, 2008 at 6:22 PM, Paul <paul at 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.
May be we should ask Jack Vogel? He will have some news probably.
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