[Intel-wired-lan] [PATCH 1/8] clarify implementation of ethtool's get_ts_info op
Schmitt, Phillip J
phillip.j.schmitt at intel.com
Mon May 11 20:53:23 UTC 2015
> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On
> Behalf Of Jacob Keller
> Sent: Wednesday, April 22, 2015 2:41 PM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH 1/8] clarify implementation of ethtool's
> get_ts_info op
>
> This patch adds some clarification about the intended way to implement both
> SIOCSHWTSTAMP and ethtool's get_ts_info. The HWTSTAMP API has several Rx
> filters which are very specific, as well as more general filters. The specific filters
> really only exist to support some broken hardware which can't fully implement
> the generic filters. This patch adds clarification that it is okay to support the
> specific filters in SIOCSHWTSTAMP by upscaling them to the generic filters. In
> addition, update the header for ethtool_ts_info to specify that drivers ought to
> only report the filters they support without upscaling in this manner.
>
> Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
> ---
> Documentation/networking/timestamping.txt | 7 +++++++
> include/uapi/linux/ethtool.h | 5 +++++
> 2 files changed, 12 insertions(+)
Tested-by: Phil Schmitt <phillip.j.schmitt at intel.com>
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