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Message-ID: <20240731074351.13676228@kernel.org>
Date: Wed, 31 Jul 2024 07:43:51 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: "Song, Yoong Siang" <yoong.siang.song@...el.com>
Cc: "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>, "David S . Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
 <pabeni@...hat.com>, Richard Cochran <richardcochran@...il.com>, "Alexei
 Starovoitov" <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>,
 Jesper Dangaard Brouer <hawk@...nel.org>, John Fastabend
 <john.fastabend@...il.com>, "Gomes, Vinicius" <vinicius.gomes@...el.com>,
 Jonathan Corbet <corbet@....net>, "Kitszel, Przemyslaw"
 <przemyslaw.kitszel@...el.com>, Shinas Rasheed <srasheed@...vell.com>,
 "Tian, Kevin" <kevin.tian@...el.com>, Brett Creeley
 <brett.creeley@....com>, "Blanco Alcaine, Hector"
 <hector.blanco.alcaine@...el.com>, "Hay, Joshua A"
 <joshua.a.hay@...el.com>, "Neftin, Sasha" <sasha.neftin@...el.com>,
 "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
 "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "bpf@...r.kernel.org" <bpf@...r.kernel.org>, "linux-doc@...r.kernel.org"
 <linux-doc@...r.kernel.org>
Subject: Re: [PATCH iwl-next,v1 0/3] Add Default Rx Queue Setting for igc
 driver

On Wed, 31 Jul 2024 07:40:11 +0000 Song, Yoong Siang wrote:
> Regarding your suggestion of implementing a "wildcard rule,"
> are you suggesting the use of an ethtool command similar to the following?
> 
> ethtool -U <iface name> flow-type ether action <default queue>
> 
> I have a concern that users might be not aware that this nfc rule is having lowest priority,
> as the default queue would only take effect when no other filtering rules match.

I believe that ethtool n-tuple rules are expected to be executed in
order. User can use the 'loc' argument to place the rule at the end 
of the table.

> Do you see this as a potential issue? If not, I am willing to proceed with
> exploring the ethtool options you've mentioned.

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