netdev - Re: [PATCH V3 net-next 02/28] ethtool: Introduce a method for getting time stamping capabilities.

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Message-ID: <1333481053.2577.36.camel@bwh-desktop.uk.solarflarecom.com>
Date:	Tue, 3 Apr 2012 20:24:13 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Richard Cochran <richardcochran@...il.com>
CC:	<netdev@...r.kernel.org>, David Miller <davem@...emloft.net>,
	Martin Porter <mporter@...arflare.com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	<e1000-devel@...ts.sourceforge.net>
Subject: Re: [PATCH V3 net-next 02/28] ethtool: Introduce a method for
 getting time stamping capabilities.

On Tue, 2012-04-03 at 19:47 +0200, Richard Cochran wrote:
> This commit adds a new ethtool ioctl that exposes the SO_TIMESTAMPING
> capabilities of a network interface. In addition, user space programs
> can use this ioctl to discover the PTP Hardware Clock (PHC) device
> associated with the interface.
> 
> Since software receive time stamps are handled by the stack, the generic
> ethtool code can answer the query correctly in case the MAC or PHY
> drivers lack special time stamping features.
> 
> Signed-off-by: Richard Cochran <richardcochran@...il.com>
[...]
Reviewed-by: Ben Hutchings <bhutchings@...arflare.com>

-- 
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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