linux-kernel - Re: [RFC PATCH net-next] bonding: add a vlan+srcmac tx hashing option

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Message-ID: <20201228101145.GC3565223@nanopsycho.orion>
Date:   Mon, 28 Dec 2020 11:11:45 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Jarod Wilson <jarod@...hat.com>
Cc:     linux-kernel@...r.kernel.org, Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Thomas Davis <tadavis@....gov>, netdev@...r.kernel.org
Subject: Re: [RFC PATCH net-next] bonding: add a vlan+srcmac tx hashing option

Fri, Dec 18, 2020 at 08:30:33PM CET, jarod@...hat.com wrote:
>This comes from an end-user request, where they're running multiple VMs on
>hosts with bonded interfaces connected to some interest switch topologies,
>where 802.3ad isn't an option. They're currently running a proprietary
>solution that effectively achieves load-balancing of VMs and bandwidth
>utilization improvements with a similar form of transmission algorithm.
>
>Basically, each VM has it's own vlan, so it always sends its traffic out
>the same interface, unless that interface fails. Traffic gets split
>between the interfaces, maintaining a consistent path, with failover still
>available if an interface goes down.
>
>This has been rudimetarily tested to provide similar results, suitable for
>them to use to move off their current proprietary solution.
>
>Still on the TODO list, if these even looks sane to begin with, is
>fleshing out Documentation/networking/bonding.rst.

Jarod, did you consider using team driver instead ? :)