linux-kernel - Re: [PATCH] dsa: tag_rtl4

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Message-ID: <6c10edf1-dad1-4a4f-ae0e-42b17febbd5d@lunn.ch>
Date:   Sun, 29 Oct 2023 18:35:49 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dsa: tag_rtl4_a: Bump min packet size

> The switch is pretty bogus, all documentation we have of it is a vendor
> code drop, no data sheet. The format for ingress and egress tags
> was discovered using trial-and-error.

The code drop does not include tagging? Does the code drop also pad to
full size Ethernet frames?

I still think it would be good to do some systematic testing to figure
out if there is any pattern to the drops.

     Andrew