netdev - Re: [PATCH net-next 0/2] Adjust MTU of DSA master interface

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Message-Id: <20181206.121832.1264000804896067352.davem@davemloft.net>
Date:   Thu, 06 Dec 2018 12:18:32 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     andrew@...n.ch
Cc:     netdev@...r.kernel.org, f.fainelli@...il.com,
        vivien.didelot@...il.com
Subject: Re: [PATCH net-next 0/2] Adjust MTU of DSA master interface

From: Andrew Lunn <andrew@...n.ch>
Date: Thu,  6 Dec 2018 11:36:03 +0100

> DSA makes use of additional headers to direct a frame in/out of a
> specific port of the switch. When the slave interfaces uses an MTU of
> 1500, the master interface can be asked to handle frames with an MTU
> of 1504, or 1508 bytes. Some Ethernet interfaces won't
> transmit/receive frames which are bigger than their MTU.
> 
> Automate the increasing of the MTU on the master interface, by adding
> to each tagging driver how much overhead they need, and then calling
> dev_set_mtu() of the master interface to increase its MTU as needed.

Series applied, thanks Andrew.