From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Cochran Date: Wed, 13 Jan 2016 22:31:56 +0100 Subject: [Intel-wired-lan] [PATCH v6 8/9] Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping In-Reply-To: <1452687149-11281-9-git-send-email-christopher.s.hall@intel.com> References: <1452687149-11281-1-git-send-email-christopher.s.hall@intel.com> <1452687149-11281-9-git-send-email-christopher.s.hall@intel.com> Message-ID: <20160113213156.GB20252@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: On Wed, Jan 13, 2016 at 04:12:28AM -0800, Christopher S. Hall wrote: > Currently, network /system cross-timestamping is performed in the > PTP_SYS_OFFSET ioctl. The PTP clock driver reads gettimeofday() and > the gettime64() callback provided by the driver. The cross-timestamp > is best effort where the latency between the capture of system time > (getnstimeofday()) and the device time (driver callback) may be > significant. Looks good to me. Acked-by: Richard Cochran