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Message-ID: <20230210200329.604e485e@kernel.org>
Date:   Fri, 10 Feb 2023 20:03:29 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saeed Mahameed <saeed@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>, Roi Dayan <roid@...dia.com>,
        Maor Dickman <maord@...dia.com>
Subject: Re: [net-next 01/15] net/mlx5: Lag, Let user configure multiport
 eswitch

On Fri, 10 Feb 2023 14:18:07 -0800 Saeed Mahameed wrote:
> From: Roi Dayan <roid@...dia.com>
> 
> Instead of activating multiport eswitch dynamically through
> adding a TC rule and meeting certain conditions, allow the user
> to activate it through devlink.
> This will remove the forced requirement of using TC.
> e.g. Bridge offload.
> 
> Example:
>     $ devlink dev param set pci/0000:00:0b.0 name esw_multiport value 1 \
>                   cmode runtime

The PR message has way better description of what's going on here.

> +   * - ``esw_multiport``
> +     - Boolean
> +     - runtime
> +     - Set the E-Switch lag mode to multiport.

This is just spelling out the name, not real documentation :(

IIUC the new mode is how devices _should_ work in switchdev mode,
so why not make this the default already? What's the cut-off point?

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