From mboxrd@z Thu Jan 1 00:00:00 1970 From: Francois Romieu Subject: Re: [PATCH 3/3] chelsio: more receive cleanup Date: Sat, 16 Dec 2006 01:26:04 +0100 Message-ID: <20061216002604.GA11284@electric-eye.fr.zoreil.com> References: <20061215190716.956791000@osdl.org> <20061215190813.803776000@osdl.org> <20061215201019.GA11385@electric-eye.fr.zoreil.com> <20061215145533.4cda3f23@freekitty> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Jeff Garzik , netdev@vger.kernel.org Return-path: Received: from electric-eye.fr.zoreil.com ([213.41.134.224]:37791 "EHLO fr.zoreil.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030480AbWLPA3U (ORCPT ); Fri, 15 Dec 2006 19:29:20 -0500 To: Stephen Hemminger Content-Disposition: inline In-Reply-To: <20061215145533.4cda3f23@freekitty> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Stephen Hemminger : > Francois Romieu wrote: [...] > Why, you can't predict copybreak on off Plain gut feeling. I'd rather spend extra cycles on small packets (whose allocation is already optimized) and keep the normal packets less expensive on a 10Gb/s network card. [...] > This is wrong, NET_IP_ALIGN is for DMA buffers only. It is defined > as 0 for those platforms where DMA alignment is important. In this > case we are copying, so we want to force 2. Ok, ok. -- Ueimor