netdev - Re: [RFC PATCH 0/4] net: dsa: link aggregation support

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Message-ID: <20201027190444.6cuug4zm6r7z4plm@skbuf>
Date:   Tue, 27 Oct 2020 21:04:44 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Marek Behun <marek.behun@....cz>
Cc:     Tobias Waldekranz <tobias@...dekranz.com>,
        Andrew Lunn <andrew@...n.ch>, vivien.didelot@...il.com,
        f.fainelli@...il.com, netdev@...r.kernel.org
Subject: Re: [RFC PATCH 0/4] net: dsa: link aggregation support

On Tue, Oct 27, 2020 at 07:33:37PM +0100, Marek Behun wrote:
> > In order for this to work on transmit, we need to add forward offloading
> > to the bridge so that we can, for example, send one FORWARD from the CPU
> > to send an ARP broadcast to swp1..4 instead of four FROM_CPUs.
> 
> Wouldn't this be solved if the CPU master interface was a bonding interface?

I don't see how you would do that. Would DSA keep returning -EPROBE_DEFER
until user space decides to set up a bond over the master interfaces?
How would you even describe that in device tree?