linux-kernel - Re: [net-next PATCH v2 5/9] octeontx2-af: Add packet path between representor and VF

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Message-ID: <Ziey7sruZrtq_5Hj@nanopsycho>
Date: Tue, 23 Apr 2024 15:09:02 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: Geetha sowjanya <gakula@...vell.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, kuba@...nel.org,
	davem@...emloft.net, pabeni@...hat.com, edumazet@...gle.com,
	sgoutham@...vell.com, sbhatta@...vell.com, hkelam@...vell.com
Subject: Re: [net-next PATCH v2 5/9] octeontx2-af: Add packet path between
 representor and VF

Mon, Apr 22, 2024 at 11:53:57AM CEST, gakula@...vell.com wrote:
>This patch installs tcam rules to stree traffic representors
>and VF when swicthdev mode is set. To support this a HW loopback
>channel is reserved. Through this channel packet are routed
>between representor and VFs. "ESW_CFG" mbox is defined to
>notify AF for installing rules.

This sounds very wrong. In switchdev mode, there is no implicit packet
forwarding. User configures that, either by setting up TC filters to
match/forward packets, putting representors in a bridge, etc.
Basically the driver offloads whatever configuration on representors the
user does, in case it supports it.

Please make sure you follow that.