netdev - Re: [RFC PATCH v2] Gemini: Gigabit ethernet driver

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Message-ID: <alpine.LNX.2.00.1012291750060.9177@localhost>
Date:	Wed, 29 Dec 2010 17:56:58 +0100 (CET)
From:	Hans Ulli Kroll <ulli.kroll@...glemail.com>
To:	Stephen Hemminger <stephen.hemminger@...tta.com>
cc:	Ben Hutchings <bhutchings@...arflare.com>,
	Michał Mirosław <mirq-linux@...e.qmqm.pl>,
	gemini-board-dev@...ts.berlios.de, netdev@...r.kernel.org,
	Christoph Biedl <linux-kernel.bfrz@...chmal.in-ulm.de>,
	Hans Ulli Kroll <ulli.kroll@...glemail.com>
Subject: Re: [RFC PATCH v2] Gemini: Gigabit ethernet driver



On Mon, 27 Dec 2010, Stephen Hemminger wrote:

> 
> 
> ----- Original Message -----
> > On Mon, 2010-12-27 at 20:21 +0100, Hans Ulli Kroll wrote:
> > [...]
> > > BTW:
> > >
> > > Why u64_stats ?
> > > I see only a few driver are using u64_stats.
> > > vlan, br_device and some intel driver
> > > no gigabit driver for marvell devices uses u64_stats
> > 
> > All new net drivers should implement 64-bit stats. net_device_stats is
> > kept for backward compatibility because we couldn't change all the
> > existing drivers at once (it's not a simple change for all of them).
> > 
> > Ben.
> 
> BS. drivers with old stats are fine. 64 bit only really matters
> at higher speed. Anyway, it is the kind of thing that can easily
> be fixed later after driver is merged.
> 
> 

I've readed the Intel driver.

So we must also implement to old net_stats interface, for backward 
compatibility ?

Ulli
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