netdev - Re: sky2 bonding problem, 802.3ad

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Message-ID: <20070215220735.GE30353@gospo.rdu.redhat.com>
Date:	Thu, 15 Feb 2007 17:07:36 -0500
From:	Andy Gospodarek <andy@...yhouse.net>
To:	Andy Gospodarek <andy@...yhouse.net>
Cc:	Holger Eitzenberger <holger@...eitzenberger.de>,
	shemminger@...ux-foundation.org,
	sk-drivers@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: Re: sky2 bonding problem, 802.3ad

On Thu, Feb 15, 2007 at 04:31:36PM -0500, Andy Gospodarek wrote:
> On Thu, Feb 15, 2007 at 07:55:42PM +0100, Holger Eitzenberger wrote:
> > Hi Steven,
> > 
> > I have problems using sky2 v1.10 with with bonding driver (802.3ad),
> > on 'Marvell 88E8053 PCI-E Gigabit Ethernet Controller'.  I have attached
> > the full lspci output.
> > 
> > My test was to setup a bond of two physical links (both links same
> > hardware) and ping 192.168.11.10, which is the address of the switch
> > itself.
> > 
> > I have tested v1.10 with kernel 2.6.19 and 2.6.16.36 (own backport),
> > which despite the bonding problem runs fine.  Both, kernel 2.6.19 and
> > 2.6.16.36 show the same behaviour.  The 802.3ad aware switch is a Dell
> > PowerConnect 5324.  VLAN is not configured on all switch ports.  Another
> > test on a host running kernel 2.6.18.2 with two e1000's bonded runs
> > fine.  Using sk98lin (v8.41 & v10.0.4) worked also.
> 
> 
> I get the impression that sky2 has never worked for you.  Is that
> correct?  There was an skge problem I noticed a while ago where on reset
> the multicast membership list was cleared.  
> 
> commit 758140900a82e3ed3bb2be1d4705dd352fe44825
> Author: Stephen Hemminger <shemminger@...l.org>
> Date:   Fri Dec 1 11:41:08 2006 -0800
> 
>     [PATCH] skge: don't clear MC state on link down
> 
>     I would rather fix Andy's problem by not clearing
>     multicast information on link down.
> 
>     Also, add code to restore multicast state after ethtool phy reset.
> 
>     Signed-off-by: Stephen Hemminger <shemminger@...l.org>
>     Signed-off-by: Jeff Garzik <jeff@...zik.org>
> 
> 
> 
> A patch Having this list cleared could stop you from receiving 802.3ad
> PDUs.  I'll check skge and see if it has the same problem (I'm betting
> on it).
> 
> 

After a quick peek this doesn't look like it's the issue.  The skge
problem was apparent because when you pulled the link the multicast
memberships disappeared....
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