linux-kernel - Re: [PATCH iwl-net 0/5] ice: LLDP support for VFs

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Message-ID: <20240305115450.577c161e@kernel.org>
Date: Tue, 5 Mar 2024 11:54:50 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Larysa Zaremba <larysa.zaremba@...el.com>
Cc: Jiri Pirko <jiri@...nulli.us>, <intel-wired-lan@...ts.osuosl.org>,
 <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Mateusz Pacuszka
 <mateuszx.pacuszka@...el.com>, Tony Nguyen <anthony.l.nguyen@...el.com>,
 Lukasz Plachno <lukasz.plachno@...el.com>, Jakub Buchocki
 <jakubx.buchocki@...el.com>, Pawel Kaminski <pawel.kaminski@...el.com>,
 Przemek Kitszel <przemyslaw.kitszel@...el.com>, Michal Swiatkowski
 <michal.swiatkowski@...ux.intel.com>, Mateusz Polchlopek
 <mateusz.polchlopek@...el.com>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, "Pawel
 Chmielewski" <pawel.chmielewski@...el.com>, Jesse Brandeburg
 <jesse.brandeburg@...el.com>
Subject: Re: [PATCH iwl-net 0/5] ice: LLDP support for VFs

On Sat, 2 Mar 2024 01:50:03 +0100 Larysa Zaremba wrote:
> For RX: match on Ethertype and mirror, every trusted VF should be able to scan 
> neighbors.
> 
> For TX this is more complicated and is done not through eswitch, but through 
> modifying security options, so do not think this would work with tc. So private 
> flags are the best option? Our requirements say only a single VSI can transmit 
> LLDP.

It is doable theoretically, tho, right? Driver can detect that all
eswitch VF/PF ports but one have a "drop LLDP" rule and update the
security option correctly?