From mboxrd@z Thu Jan 1 00:00:00 1970 From: Evgeniy Polyakov Subject: Re: jumbo frames and memory fragmentation Date: Sun, 9 Jul 2006 02:25:09 +0400 Message-ID: <20060708222509.GF26000@2ka.mipt.ru> References: <44A56520.5010703@nortel.com> <20060630184820.GA9558@2ka.mipt.ru> <44A5B546.3010606@nortel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Cc: Herbert Xu , netdev@vger.kernel.org Return-path: Received: from relay.2ka.mipt.ru ([194.85.82.65]:31699 "EHLO 2ka.mipt.ru") by vger.kernel.org with ESMTP id S1751314AbWGHWZk (ORCPT ); Sat, 8 Jul 2006 18:25:40 -0400 To: Chris Friesen Content-Disposition: inline In-Reply-To: <44A5B546.3010606@nortel.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, Jun 30, 2006 at 05:35:34PM -0600, Chris Friesen (cfriesen@nortel.com) wrote: > Evgeniy Polyakov wrote: > > >It definitely will. > >Packet split in hardware means separating data and headers into > >different pages in different reads, while software page split means that > >skb has a list of fragments where part of the packet will be DMAed, so > >jumbo frame will be converted into several pages. > > Maybe I'm looking at the wrong code then. Can you point me to where > this "software page split" is handled? Yes, you are correct, e1000 only supports receiving page split for 82571 and greater adapters. > Chris -- Evgeniy Polyakov