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

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Message-ID: <20230109100040.413ad300@wsk>
Date:   Mon, 9 Jan 2023 10:00:40 +0100
From:   Lukasz Majewski <lukma@...x.de>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Vladimir Oltean <olteanv@...il.com>,
        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>,
        Alexander Duyck <alexander.duyck@...il.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 Andrew,

> On Fri, Jan 06, 2023 at 11:16:49AM +0100, Lukasz Majewski wrote:
> > Different Marvell DSA switches support different size of max frame
> > bytes to be sent. This value corresponds to the memory allocated
> > in switch to store single frame.
> > 
> > For example mv88e6185 supports max 1632 bytes, which is now
> > in-driver standard value. On the other hand - mv88e6250 supports
> > 2048 bytes. To be more interresting - devices supporting jumbo
> > frames - use yet another value (10240 bytes)
> > 
> > As this value is internal and may be different for each switch IC,
> > new entry in struct mv88e6xxx_info has been added to store it.
> > 
> > This commit doesn't change the code functionality - it just provides
> > the max frame size value explicitly - up till now it has been
> > assigned depending on the callback provided by the IC driver
> > (e.g. .set_max_frame_size, .port_set_jumbo_size).
> > 
> > Signed-off-by: Lukasz Majewski <lukma@...x.de>  
> 
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
> 
> FYI: It is normal to include a patch 0/X for a patchset, which
> explains the big picture of the patchset. Please try to remember this
> for your next patchset.

Ok. I will. Thanks for the tip.

> 
>     Andrew
> 
> 




Best regards,

Lukasz Majewski

--

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