From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Lachlan Andrew" Subject: Re: [RFC PATCH net-2.6.25 uncompilable] [TCP]: Avoid breaking GSOed skbs when SACKed one-by-one Date: Tue, 11 Dec 2007 16:14:36 -0800 Message-ID: References: <20071207.173201.95379610.davem@davemloft.net> <20071211.043239.224938181.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: ilpo.jarvinen@helsinki.fi, netdev@vger.kernel.org, quetchen@caltech.edu To: "David Miller" Return-path: Received: from py-out-1112.google.com ([64.233.166.179]:1745 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750945AbXLLAOi (ORCPT ); Tue, 11 Dec 2007 19:14:38 -0500 Received: by py-out-1112.google.com with SMTP id u77so39602pyb.16 for ; Tue, 11 Dec 2007 16:14:37 -0800 (PST) In-Reply-To: <20071211.043239.224938181.davem@davemloft.net> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Greetings all, On 11/12/2007, David Miller wrote: > > we should > get it right as it might have network driver interface implications. If you're redoing the driver interface, could I put in a request for packet time-stamping at a lower level? This thread started because TCP processing interferes with RTT estimation. This problem would be eliminated if time-stamping were done as soon as the packet comes off the NIC. $0.02 Lachlan -- Lachlan Andrew Dept of Computer Science, Caltech 1200 E California Blvd, Mail Code 256-80, Pasadena CA 91125, USA Ph: +1 (626) 395-8820 Fax: +1 (626) 568-3603 http://netlab.caltech.edu/~lachlan