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Re: [PATCH 2.6.9-rc2 8/8] S2io: two buffer mode

To: Leonid Grossman <leonid.grossman@xxxxxxxx>
Subject: Re: [PATCH 2.6.9-rc2 8/8] S2io: two buffer mode
From: Jeff Garzik <jgarzik@xxxxxxxxx>
Date: Fri, 15 Oct 2004 14:47:24 -0400
Cc: "'Raghavendra Koushik'" <raghavendra.koushik@xxxxxxxx>, "'Chris Leech'" <chris.leech@xxxxxxxxx>, ravinandan.arakali@xxxxxxxx, "'Francois Romieu'" <romieu@xxxxxxxxxxxxx>, netdev@xxxxxxxxxxx, rapuru.sriram@xxxxxxxx
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Leonid Grossman wrote:
 "fragmented SKB on Rx" is an old problem - we tried to deploy 2 and 5
buffer Xframe modes before and it did not work in Linux. Is anyone aware of any network driver that successfully uses fragmented

Raghavendra Koushik wrote:
I did try fragmented SKB on Rx but it didn't seem to work. If any one can
give me some pointers on how to get this working, I would implement 2Buff
mode using this method and avoid a copy in fast path.

My suggestion would be to investigate why fragmented SKBs don't work ;-)

The source code is all there, debug away...

If S2IO can fix this, a lot of people will benefit.


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