netdev - Re: [PATCH net-next v3 2/2] net/mlx5: implement swp_l4_csum

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Message-ID: <25ebaf18-f009-45de-a3e4-fe440c42ef19@gmail.com>
Date: Mon, 10 Nov 2025 08:05:57 -0500
From: Daniel Zahka <daniel.zahka@...il.com>
To: Jiri Pirko <jiri@...nulli.us>
Cc: "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
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 Pavan Chebbi <pavan.chebbi@...adcom.com>,
 Tony Nguyen <anthony.l.nguyen@...el.com>,
 Przemek Kitszel <przemyslaw.kitszel@...el.com>,
 Sunil Goutham <sgoutham@...vell.com>, Linu Cherian <lcherian@...vell.com>,
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Subject: Re: [PATCH net-next v3 2/2] net/mlx5: implement swp_l4_csum_mode via
 devlink params

On 11/9/25 5:39 AM, Jiri Pirko wrote:
> Daniel, I asked twice if this could be a non-driver param. Jakub asked
> for clearer definition of this know in that context.
>
> Not sure why you are ignoring this :/
>

My apologies. I think there was a miscommunication. I assumed Jakub's 
question was directed towards you. I have no objection to making it a 
generic param; I will do so in v4. It sounded to me like Jakub was 
wanting more information on what exactly this setting does beyond what I 
was able to provide in the commit message and mlx5 devlink 
documentation. My understanding is that this setting pertains to tx 
csums and how the device expects the driver to prepare partial csums 
when doing tx cso. I don't really know more than that. Especially not 
something like what the FW's role in implementing this is.