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From: Ben Hutchings <bhutchings@solarflare.com>
To: David Miller <davem@davemloft.net>
Cc: <jdelvare@suse.de>, <netdev@vger.kernel.org>,
	<thockin@hockin.org>, <okir@suse.de>
Subject: Re: [PATCH] natsemi: make cable length magic configurable
Date: Mon, 28 Nov 2011 17:51:04 +0000	[thread overview]
Message-ID: <1322502664.26733.9.camel@bwh-desktop> (raw)
In-Reply-To: <20111125.013713.1783082973236989821.davem@davemloft.net>

On Fri, 2011-11-25 at 01:37 -0500, David Miller wrote:
> From: Jean Delvare <jdelvare@suse.de>
> Date: Thu, 24 Nov 2011 14:43:59 +0100
> 
> > We had a customer report concerning problems with a Natsemi DP83815-D
> > and long cables. With 100m cables, the network would be essentially dead,
> > not a single packet would get through either way. We had to apply the
> > patch below to make it work.
> 
> Please do not add new private device driver module knobs.
> 
> Instead, add generic flags to the ethtool interface or similar to
> control device behavior.

This isn't a generic flag; it seems to be a workaround for a specific
bug that unfortunately can't be automatic.

That's why I suggested an ethtool private flag.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

  reply	other threads:[~2011-11-28 17:51 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-24 13:43 [PATCH] natsemi: make cable length magic configurable Jean Delvare
2011-11-24 19:25 ` Ben Hutchings
2012-07-16 12:26   ` Jean Delvare
2012-07-16 13:08     ` Ben Hutchings
2012-07-16 13:57       ` Mark Brown
2012-07-17  5:22         ` David Miller
2011-11-25  6:37 ` David Miller
2011-11-28 17:51   ` Ben Hutchings [this message]
2011-11-28 21:45     ` David Miller

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