linux-kernel - Re: [PATCH v4 1/3] dsa: marvell: Provide per device information about max frame size

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Date:   Fri, 13 Jan 2023 12:53:38 +0100
From:   Lukasz Majewski <lukma@...x.de>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Alexander Duyck <alexander.duyck@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Eric Dumazet <edumazet@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/3] dsa: marvell: Provide per device information
 about max frame size

Hi Vladimir,

> On Fri, Jan 13, 2023 at 12:02:19PM +0100, Lukasz Majewski wrote:
> > Hi Vladimir,
> >   
> > > On Fri, Jan 13, 2023 at 11:39:08AM +0100, Lukasz Majewski wrote:  
> > > > Are there any more comments, or is this patch set eligible for
> > > > pulling into net-next tree?    
> > > 
> > > How about responding to the comment that was already posted
> > > first?  
> > 
> > Could you be more specific?
> > 
> > 
> > On the beginning (first posted version) the patch included 9 patches
> > (which included work for ADDR4 for some mv88e6020 setup).
> > 
> > But after the discussion, I've decided to split this patch set to
> > smaller pieces;
> > 
> > First to add the set_max_frame size with basic definition for
> > mv88e6020 and mv88e6071 and then follow with more complicated
> > changes (for which there is no agreement on how to tackle them).
> > 
> > For the 'set_max_frame' feature Alexander Dyuck had some comments
> > regarding defensive programming approach, but finally he agreed with
> > Andrew's approach.
> > 
> > As of now - the v4 has been Acked by Andrew, so it looks like at
> > least this "part" of the work is eligible for upstreaming.
> > 
> > 
> > Or there are any more issues about which I've forgotten ?  
> 
> Do you agree that for the chip families which neither implement
> port_set_jumbo_size() nor set_max_frame_size(), a max MTU of 1492 will
> be returned, which currently produces warnings at probe time and
> should be fixed first, prior to refactoring the code?
> https://patchwork.kernel.org/project/netdevbpf/patch/20230106101651.1137755-1-lukma@denx.de/#25149891

Sorry, but I've overlooked your reply.

I will write my comments as a reply to it.


Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@...x.de

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