From: Ben Greear <greearb@candelatech.com>
To: Francois Romieu <romieu@fr.zoreil.com>
Cc: "'netdev@oss.sgi.com'" <netdev@oss.sgi.com>
Subject: Re: 8169 driver with NetGear GA511 card.
Date: Thu, 28 Oct 2004 10:47:48 -0700 [thread overview]
Message-ID: <418130C4.3010207@candelatech.com> (raw)
In-Reply-To: <20041028074827.GA3572@electric-eye.fr.zoreil.com>
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 <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2004-10-28 17:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-27 23:18 8169 driver with NetGear GA511 card Ben Greear
2004-10-28 1:58 ` Ben Greear
2004-10-28 7:48 ` Francois Romieu
2004-10-28 17:47 ` Ben Greear [this message]
2004-10-28 22:37 ` Francois Romieu
2004-10-28 22:49 ` Ben Greear
2004-10-28 22:00 ` [PATCH] r8169 tx checksuming on by default Jon Mason
2004-10-28 16:45 ` 8169 driver with NetGear GA511 card Jon Mason
2004-10-28 16:52 ` Ben Greear
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