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Date: Tue, 15 Mar 2011 18:54:24 -0700 (PDT) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: chromatix99@...il.com, d@...t.net, netdev@...r.kernel.org, dan@...erfire.com Subject: Re: [PATCH] net_sched: fix ip_tos2prio From: Eric Dumazet <eric.dumazet@...il.com> Date: Wed, 16 Mar 2011 00:56:07 +0100 > From: Dan Siemon <dan@...erfire.com> > > ECN support incorrectly maps ECN BESTEFFORT packets to TC_PRIO_FILLER > (1) instead of TC_PRIO_BESTEFFORT (0) > > This means ECN enabled flows are placed in pfifo_fast/prio low priority > band, giving ECN enabled flows [ECT(0) and CE codepoints] higher drop > probabilities. > > This is rather unfortunate, given we would like ECN being more widely > used. > > Ref : http://www.coverfire.com/archives/2011/03/13/pfifo_fast-and-ecn/ > > Signed-off-by: Dan Siemon <dan@...erfire.com> > Signed-off-by: Eric Dumazet <eric.dumazet@...il.com> > Cc: Dave Täht <d@...t.net> > Cc: Jonathan Morton <chromatix99@...il.com> Applied and queued up for -stable, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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