From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: [PATCH] Disable TSO for non standard qdiscs Date: Fri, 01 Feb 2008 08:25:57 +0100 Message-ID: <47A2C985.30409@trash.net> References: <20080131183322.GA4671@one.firstfloor.org> <47A20CDC.5090104@trash.net> <20080131183735.GC4671@one.firstfloor.org> <20080131100846.00934e25@extreme> <20080131185328.GD4671@one.firstfloor.org> <47A211A0.1040502@trash.net> <20080131190125.GE4671@one.firstfloor.org> <20080131193406.GH4671@one.firstfloor.org> <1201847738.17656.5.camel@roma.44ansell.gdt.id.au> <20080201074600.GA12644@one.firstfloor.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: Glen Turner , "Waskiewicz Jr, Peter P" , Stephen Hemminger , netdev@vger.kernel.org To: Andi Kleen Return-path: Received: from stinky.trash.net ([213.144.137.162]:39248 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754685AbYBAH0D (ORCPT ); Fri, 1 Feb 2008 02:26:03 -0500 In-Reply-To: <20080201074600.GA12644@one.firstfloor.org> Sender: netdev-owner@vger.kernel.org List-ID: Andi Kleen wrote: >> The problem with ethtool is that it's a non-obvious nerd knob. At >> the least the ethtool documentation should be updated to indicate that >> activating TSO effects tc accuracy. > > TSO tends to be activated by default in the driver; very few people who use it > do even know that ethtool exist or what TSO is. Indeed. As an example of an unknowing user, this discussion made me check whether my cablemodem device (on which I'm using HFSC) uses TSO :)