Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030788AbWJKDur (ORCPT ); Tue, 10 Oct 2006 23:50:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030787AbWJKDur (ORCPT ); Tue, 10 Oct 2006 23:50:47 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:47043 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1030783AbWJKDuq (ORCPT ); Tue, 10 Oct 2006 23:50:46 -0400 Date: Tue, 10 Oct 2006 20:50:49 -0700 (PDT) Message-Id: <20061010.205049.132929620.davem@davemloft.net> To: rdreier@cisco.com Cc: mst@mellanox.co.il, shemminger@osdl.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, openib-general@openib.org, rolandd@cisco.com Subject: Re: Dropping NETIF_F_SG since no checksum feature. From: David Miller In-Reply-To: References: <20061010.204528.90823856.davem@davemloft.net> X-Mailer: Mew version 4.2 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 672 Lines: 16 From: Roland Dreier Date: Tue, 10 Oct 2006 20:49:09 -0700 > David> non-sendfile() paths will generate big packets just fine, > David> as long as the application is providing that much data. > > OK, cool. Will the big packets be non-linear skbs? If you had SG enabled (and thus checksumming offload too) then yes you'll get a non-linear SKB. Otherwise, without SG, you'll get a fully linear SKB. - 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/