From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan-Bernd Themann Subject: Re: RFC: issues concerning the next NAPI interface Date: Wed, 29 Aug 2007 10:31:30 +0200 Message-ID: <200708291031.31923.ossthema@de.ibm.com> References: <200708281319.03903.ossthema@de.ibm.com> <46D51BD7.6040904@de.ibm.com> <20070829.012916.02298847.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: jchapman@katalix.com, shemminger@linux-foundation.org, akepner@sgi.com, netdev@vger.kernel.org, raisch@de.ibm.com, themann@de.ibm.com, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, meder@de.ibm.com, tklein@de.ibm.com, stefan.roscher@de.ibm.com To: David Miller Return-path: Received: from mtagate4.de.ibm.com ([195.212.29.153]:13643 "EHLO mtagate4.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754436AbXH2Ibf (ORCPT ); Wed, 29 Aug 2007 04:31:35 -0400 In-Reply-To: <20070829.012916.02298847.davem@davemloft.net> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Wednesday 29 August 2007 10:29, David Miller wrote: > From: Jan-Bernd Themann > Date: Wed, 29 Aug 2007 09:10:15 +0200 > > > In the end I want to reduce the CPU utilization. And one way > > to do that is LRO which also works only well if there are more > > then just a very few packets to aggregate. So at least our > > driver (eHEA) would benefit from a mix of timer based polling > > and plain NAPI (depending on load situations). > > > > If there is no need for a generic mechanism for this kind of > > network adapters, then we can just leave this to each device > > driver. > > No objections from me either way, if something works then > fine. > > Let's come back to this once you have a tested sample implementation > that does what you want, ok? Sounds good