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Open Source and information security mailing list archives
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Date: Thu, 15 Sep 2022 11:59:26 +0000 From: Vladimir Oltean <vladimir.oltean@....com> To: Kurt Kanzenbach <kurt@...utronix.de> CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Xiaoliang Yang <xiaoliang.yang_1@....com>, Rui Sousa <rui.sousa@....com>, Claudiu Manoil <claudiu.manoil@....com>, Alexandre Belloni <alexandre.belloni@...tlin.com>, "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>, Andrew Lunn <andrew@...n.ch>, Vivien Didelot <vivien.didelot@...il.com>, Florian Fainelli <f.fainelli@...il.com>, Michael Walle <michael@...le.cc>, Vinicius Costa Gomes <vinicius.gomes@...el.com>, Maxim Kochetkov <fido_max@...ox.ru>, Colin Foster <colin.foster@...advantage.com>, Richie Pearn <richard.pearn@....com>, Vladimir Oltean <olteanv@...il.com>, Jesse Brandeburg <jesse.brandeburg@...el.com>, Tony Nguyen <anthony.l.nguyen@...el.com>, Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, Jose Abreu <joabreu@...opsys.com>, Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko <jiri@...nulli.us>, Gerhard Engleder <gerhard@...leder-embedded.com>, Grygorii Strashko <grygorii.strashko@...com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH net-next 08/13] net: dsa: hellcreek: deny tc-taprio changes to per-tc max SDU On Thu, Sep 15, 2022 at 08:15:54AM +0200, Kurt Kanzenbach wrote: > > So the maxSDU hardware register tracks exactly the L2 payload size, like > > the software variable does, or does it include the Ethernet header size > > and/or FCS? > > This is something I'm not sure about. I'll ask the HW engineer when he's > back from vacation. You can also probably figure this out by limiting the max-sdu to a value like 200 and seeing what frame sizes pass through.
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