netdev - Re: [RFC PATCH net-next 13/20] net: dsa: mv88e6xxx: factorize GLOBAL

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Message-ID: <20160506005546.GK7972@lunn.ch>
Date:	Fri, 6 May 2016 02:55:46 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel@...oirfairelinux.com,
	"David S. Miller" <davem@...emloft.net>,
	Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [RFC PATCH net-next 13/20] net: dsa: mv88e6xxx: factorize
 GLOBAL_CONTROL setup

On Thu, May 05, 2016 at 06:40:57PM -0400, Vivien Didelot wrote:
> All switch models configure the GLOBAL_CONTROL register with slightly
> differences.

And as far as i know, we have no idea why.
 
> Assume a common setup to enable the PHY Polling Unit if present, discard
> packets with excessive collisions, set the maximum frame size to 1632,
> and mask all interrupt sources.

This is a behaviour change, not just a refactor. It would be good to
say on which families it has been tested, and which have not.

    Andrew