Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267450AbUIPBNt (ORCPT ); Wed, 15 Sep 2004 21:13:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267416AbUIPBMs (ORCPT ); Wed, 15 Sep 2004 21:12:48 -0400 Received: from mail-relay-1.tiscali.it ([213.205.33.41]:46223 "EHLO mail-relay-1.tiscali.it") by vger.kernel.org with ESMTP id S267450AbUIPBHG (ORCPT ); Wed, 15 Sep 2004 21:07:06 -0400 Date: Thu, 16 Sep 2004 03:05:09 +0200 From: Andrea Arcangeli To: "David S. Miller" Cc: Alan Cox , paul@clubi.ie, netdev@oss.sgi.com, leonid.grossman@s2io.com, linux-kernel@vger.kernel.org Subject: Re: The ultimate TOE design Message-ID: <20040916010509.GP15426@dualathlon.random> References: <4148991B.9050200@pobox.com> <1095275660.20569.0.camel@localhost.localdomain> <20040915135308.78bf74f0.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040915135308.78bf74f0.davem@davemloft.net> X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1127 Lines: 21 On Wed, Sep 15, 2004 at 01:53:08PM -0700, David S. Miller wrote: > There are absolutely no justified economics in these > TOE engines. By the time you deploy them, the cpus > and memory catch up and what's more those are general > purpose and not just for networking as David Stevens > and others have said. I'm not sure if economics are the worst part of what is being shipped, to me the worst part is security, I'd never trust myself such a non-open-source TCP stack for something critical even if it was going to be much cheaper and performant. Even my PDA is using the linux tcp stack, and my cell phone only speaks UDP with the wap server anyways. TCP segment offload OTOH doesn't involve much "intelligence" in the NIC and it's very reasonable to trust it especially because all the incoming packets (the real potential offenders) are still processed by the linux tcp stack. - 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/