linux-kernel - Re: [PATCH net-next v2] ethtool: ice: Support for RSS settings to GTP from ethtool

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Date:   Wed, 18 Oct 2023 10:40:15 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Harald Welte <laforge@...monks.org>
Cc:     takeru hayasaka <hayatake396@...il.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        osmocom-net-gprs@...ts.osmocom.org
Subject: Re: [PATCH net-next v2] ethtool: ice: Support for RSS settings to
 GTP from ethtool

On Wed, 18 Oct 2023 10:12:44 +0200 Harald Welte wrote:
> > If we were to propose again, setting aside considerations specific to
> > Intel, I believe, considering the users of ethtool, the smallest units
> > should be gtpu4|6 and gtpc4|6.  
> 
> agreed.  Though I'm not entirely sure one would usually want to treat v4
> different from v6.  I'd assume they would usually both follow the same
> RSS scheme?

FWIW I had the same thought. But if we do add flow matching 
support for GTP one day we'll have to define a struct like
struct ethtool_tcpip4_spec, which means size of the address
matters?