netdev - Re: [PATCH v3 net-next 09/12] net: dsa: tag_brcm: let DSA core deal with TX reallocation

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Message-ID: <20201103180016.bg3djnrqyqbpbpos@skbuf>
Date:   Tue, 3 Nov 2020 18:00:17 +0000
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Florian Fainelli <f.fainelli@...il.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "vivien.didelot@...il.com" <vivien.didelot@...il.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        Christian Eggers <ceggers@...i.de>,
        Kurt Kanzenbach <kurt@...utronix.de>
Subject: Re: [PATCH v3 net-next 09/12] net: dsa: tag_brcm: let DSA core deal
 with TX reallocation

On Tue, Nov 03, 2020 at 09:32:38AM -0800, Florian Fainelli wrote:
> the length verification is done after the Broadcom tag is stripped off
> the ingress packet.

Aha, that makes sense. So to the DSA master it has the proper length,
but to the switch it doesn't. Interesting problem. It must mean that my
switches pad short frames automatically.