From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: 8169 driver with NetGear GA511 card. Date: Thu, 28 Oct 2004 10:47:48 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <418130C4.3010207@candelatech.com> References: <41802CA8.8070900@candelatech.com> <20041028074827.GA3572@electric-eye.fr.zoreil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "'netdev@oss.sgi.com'" Return-path: To: Francois Romieu In-Reply-To: <20041028074827.GA3572@electric-eye.fr.zoreil.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Francois Romieu wrote: > The r8169 in -mm and in -netdev includes some extra buzzword-compliant > features (TX csum/SG and TSO mainly). The changes are isolated in a > single patch against 2.6.9 available at: > http://www.fr.zoreil.com/people/francois/misc/20041020-2.6.9-r8169.c-test.patch > > I will not claim it is as stable as vanilla 2.6.9 should be. I'm running tests at the ethernet frame (skb) level, so I would not expect the IP offload to help much. Do you have any performance numbers for your 8169 cards for me to compare against? > Please send the usuals 'lspci -vx' + /proc/interrupts contents during > activity + complete dmesg + short description of the generated traffic. > I will hardly dissect it before the week end but there is a problem. :o( I'll get this in a bit, as I have locked up the keyboard again. This time, I was still using the non-NAPI code which had run over-night at around 5Mbps... I tried a different network setup, and noticed that the 8169 was only negotiating 10bt/HD. That would explain the poor performance numbers. The NIC was connected to a BCM5705M when I noticed this, though it had been connected to an e1000 earlier. I tried forcing both NICs to 100bt/FD. The BCM would force to that speed, but the 8169 would only force to 100bt/HD. While attempting to change them back to auto-negotiate, I noticed that the keyboard had quit working... With regard to the BCM, it is interesting in that ethtool reports that it supports only up to 100bt/FD, but it advertises 1000bt/FD. The wierd advertise and negotiation stuff could be at least partly my fault as I have a program that manipulates these settings from default. I will continue to play with this later this evening... Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com