From: Jay Vosburgh <fubar@us.ibm.com>
To: Jean Delvare <jdelvare@suse.de>
Cc: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>,
netdev@vger.kernel.org
Subject: Re: bonding with 3c59x driver
Date: Mon, 13 Feb 2012 14:13:11 -0800 [thread overview]
Message-ID: <22039.1329171191@death.nxdomain> (raw)
In-Reply-To: <201202132253.16496.jdelvare@suse.de>
Jean Delvare <jdelvare@suse.de> wrote:
>I am trying to do network bonding on top of 3com 3C905C ethernet
>adapters. I am facing the problem that network cable removal isn't
>detected. It is detected when using Realtek hardware with driver 8139too
>or VIA hardware with driver via-rhine, but no luck with driver 3c59x.
>I'm using bonding option miimon=100 for link detection.
>
>Does anyone know if this is a hardware limitation, or a missing feature
>of the 3c59x driver, or a bug in that driver?
It just so happens that I was looking at 3c59x earlier today for
something else. It appears to run its internal link state detection on
a 5 second timer, after which (in theory) bonding's miimon would notice
(provided that the driver notices and calls netif_carrier_off).
If that's not working, did you try use_carrier=0 to probe the
mii register state directly?
I have used 3c59x with bonding in the distant past, but I don't
recall exactly what tweaks were necessary; it may have required
use_carrier=0 to work at all.
-J
---
-Jay Vosburgh, IBM Linux Technology Center, fubar@us.ibm.com
next prev parent reply other threads:[~2012-02-13 22:13 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-13 21:53 bonding with 3c59x driver Jean Delvare
2012-02-13 22:13 ` Jay Vosburgh [this message]
2012-02-14 10:22 ` Jean Delvare
2012-02-14 10:35 ` Steffen Klassert
2012-02-14 10:44 ` David Laight
2012-02-14 11:06 ` Steffen Klassert
2012-02-14 11:13 ` Eric Dumazet
2012-02-14 12:50 ` Jean Delvare
2012-02-14 13:34 ` Steffen Klassert
2012-02-14 19:43 ` David Miller
2012-02-14 20:27 ` [PATCH] 3c59x: shorten timer period for slave devices Eric Dumazet
2012-02-14 20:51 ` Dan Williams
2012-02-14 21:02 ` Eric Dumazet
2012-02-14 21:28 ` David Miller
2012-02-14 18:27 ` bonding with 3c59x driver Rick Jones
2012-02-14 19:27 ` Jean Delvare
2012-02-14 21:06 ` Chris Friesen
2012-02-15 9:53 ` Jean Delvare
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