From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland Dreier Subject: Re: Dropping NETIF_F_SG since no checksum feature. Date: Tue, 10 Oct 2006 20:49:09 -0700 Message-ID: References: <20061010.203624.91207079.davem@davemloft.net> <20061010.204528.90823856.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: mst@mellanox.co.il, shemminger@osdl.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, openib-general@openib.org, rolandd@cisco.com Return-path: Received: from sj-iport-5.cisco.com ([171.68.10.87]:60019 "EHLO sj-iport-5.cisco.com") by vger.kernel.org with ESMTP id S1030782AbWJKDtV (ORCPT ); Tue, 10 Oct 2006 23:49:21 -0400 To: David Miller In-Reply-To: <20061010.204528.90823856.davem@davemloft.net> (David Miller's message of "Tue, 10 Oct 2006 20:45:28 -0700 (PDT)") Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org 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? Because then it would make sense for a device with a huge MTU to want to accept them without linearizing them, even if it had to copy them to checksum the data. Otherwise with fragmented memory it would be impossible to handle such big packets at all. - R.