Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264080AbTFPSHm (ORCPT ); Mon, 16 Jun 2003 14:07:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264082AbTFPSHm (ORCPT ); Mon, 16 Jun 2003 14:07:42 -0400 Received: from fmr02.intel.com ([192.55.52.25]:22734 "EHLO caduceus.fm.intel.com") by vger.kernel.org with ESMTP id S264080AbTFPSHj convert rfc822-to-8bit (ORCPT ); Mon, 16 Jun 2003 14:07:39 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT X-MimeOLE: Produced By Microsoft Exchange V6.0.6375.0 Subject: RE: e1000 performance hack for ppc64 (Power4) Date: Mon, 16 Jun 2003 11:21:16 -0700 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: e1000 performance hack for ppc64 (Power4) Thread-Index: AcMzSuDMkewgo8NbQ/eWd2USmzVnawA6Bt3g From: "Feldman, Scott" To: "Herman Dierks" , "David S. Miller" Cc: , , , , , "Nancy J Milliner" , "Ricardo C Gonzalez" , "Brian Twichell" , X-OriginalArrivalTime: 16 Jun 2003 18:21:16.0611 (UTC) FILETIME=[13787130:01C33434] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 863 Lines: 21 Herman wrote: > Its only the MTU 1500 case with non-TSO that we are > discussing here so copying a few bytes is really not a big > deal as the data is already in cache from copying into > kernel. If it lets the adapter run at speed, thats what > customers want and what we need. Granted, if the HW could > deal with this we would not have to, but thats not the case > today so I want to spend a few CPU cycles to get best > performance. Again, if this is not done on other platforms, I > don't understand why you care. I care because adding the arch-specific hack creates a maintenance issue for me. -scott - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/