netdev - Re: [PATCH v2 1/1] alx: add a simple AR816x/AR817x device driver

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Message-ID: <1371850758.8771.28.camel@deadeye.wl.decadent.org.uk>
Date:	Fri, 21 Jun 2013 22:39:18 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	netdev@...r.kernel.org, mcgrof@...not-panic.com, kvalo@...rom.com,
	adrian.chadd@...il.com, Johannes Stezenbach <js@...21.net>
Subject: Re: [PATCH v2 1/1] alx: add a simple AR816x/AR817x device driver

On Fri, 2013-06-21 at 22:42 +0200, Johannes Berg wrote:
> On Fri, 2013-06-21 at 13:45 +0100, Ben Hutchings wrote:
> 
> > > Ok, I can kick out the 'select NET_CORE' here anyway as MDIO doesn't
> > > need it. Or did you want to do a more general cleanup on this, then I'll
> > > leave it to you?
> > 
> > See commit a1606c7dc64d8449676d7e840dd2cd0c4e0a0c57.
> 
> Ok, I'll remove it from alx.
> 
> > > How would I even test that? Find random devices that have flow control?
> > > I don't think I have anything that would be programmable, unless I don't
> > > know about it being so :-)
> > 
> > Most Ethernet controllers seem to support flow control.  Though, in a
> > quick test, the e1000e driver on my laptop never seems to turn off Pause
> > advertising!
> 
> Hah! And how did you determine that? :)

Turned pause autoneg on/off and looked at the PHY registers with
mii-tool (Debian version, which I think has some patches that never went
upstream).

Ben.

-- 
Ben Hutchings
Klipstein's 4th Law of Prototyping and Production:
                                    A fail-safe circuit will destroy others.

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