linux-kernel - Re: [PATCH] drivers: ptp: Include new header file in ptp

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Message-ID: <1387480400.1876.32.camel@bwh-desktop.uk.level5networks.com>
Date:	Thu, 19 Dec 2013 19:13:20 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Richard Cochran <richardcochran@...il.com>
CC:	David Miller <davem@...emloft.net>, <rashika.kheria@...il.com>,
	<linux-kernel@...r.kernel.org>, <dvhart@...ux.intel.com>,
	<joe@...ches.com>, <andriy.shevchenko@...ux.intel.com>,
	<vfalico@...hat.com>, <netdev@...r.kernel.org>,
	<josh@...htriplett.org>
Subject: Re: [PATCH] drivers: ptp: Include new header file in ptp_pch.c

On Thu, 2013-12-19 at 08:27 +0100, Richard Cochran wrote:
> On Wed, Dec 18, 2013 at 05:43:59PM -0500, David Miller wrote:
> > 
> > I think this begs an even more fundamental question, why isn't the PTP
> > driver abstraction providing the necessary methods and interfaces so
> > that pch_gbe doesn't have to call into the ptp_pch.c code directly?
> 
> Really it is more of a driver issue. For MAC based PTP clocks, they
> are so tightly coupled to the MAC driver that it is better *not* to
> have the PTP functions in a separate module. Instead, if having the
> PTP stuff optional makes sense, then the PTP parts are just a compile
> time option in the MAC driver. This is how the other MAC drivers with
> optional PTP are structured.
[...]

PTP is no longer a compile-time option in most net drivers.

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.

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