From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH 2.6.9-rc2 8/8] S2io: two buffer mode Date: Fri, 15 Oct 2004 14:47:24 -0400 Sender: netdev-bounce@oss.sgi.com Message-ID: <41701B3C.8020006@pobox.com> References: <200410150021.i9F0LJ39024214@guinness.s2io.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "'Raghavendra Koushik'" , "'Chris Leech'" , ravinandan.arakali@s2io.com, "'Francois Romieu'" , netdev@oss.sgi.com, rapuru.sriram@s2io.com Return-path: To: Leonid Grossman In-Reply-To: <200410150021.i9F0LJ39024214@guinness.s2io.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org 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 > SKBs? 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. Jeff