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Date: Mon, 13 Feb 2012 14:13:11 -0800 From: Jay Vosburgh <fubar@...ibm.com> To: Jean Delvare <jdelvare@...e.de> cc: Steffen Klassert <klassert@...hematik.tu-chemnitz.de>, netdev@...r.kernel.org Subject: Re: bonding with 3c59x driver Jean Delvare <jdelvare@...e.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@...ibm.com -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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