> From: netdev-ow...@vger.kernel.org [mailto:netdev- > ow...@vger.kernel.org] On Behalf Of Nathan Sullivan > Sent: Tuesday, May 3, 2016 4:11 PM > To: Kirsher, Jeffrey T <jeffrey.t.kirs...@intel.com>; Brandeburg, Jesse > <jesse.brandeb...@intel.com>; Nelson, Shannon > <shannon.nel...@intel.com>; Wyborny, Carolyn > <carolyn.wybo...@intel.com>; Skidmore, Donald C > <donald.c.skidm...@intel.com>; Allan, Bruce W <bruce.w.al...@intel.com>; > Ronciak, John <john.ronc...@intel.com>; Williams, Mitch A > <mitch.a.willi...@intel.com> > Cc: intel-wired-...@lists.osuosl.org; netdev@vger.kernel.org; linux- > ker...@vger.kernel.org; Nathan Sullivan <nathan.sulli...@ni.com> > Subject: [PATCH] igb: adjust ptp timestamps for tx/rx latency > > Table 7-62 on page 338 of the i210 datasheet lists TX and RX latencies > for the various speeds the chip supports. To give better ptp timestamp > accuracy, adjust the timestamps by the amounts Intel gives based on > current link speed. > > Signed-off-by: Nathan Sullivan <nathan.sulli...@ni.com> > --- > drivers/net/ethernet/intel/igb/igb.h | 8 +++++++ > drivers/net/ethernet/intel/igb/igb_ptp.c | 36 > ++++++++++++++++++++++++++++++ > 2 files changed, 44 insertions(+)
Tested-by: Aaron Brown <aaron.f.br...@intel.com>
