> From: [email protected] [mailto:netdev- > [email protected]] On Behalf Of Nathan Sullivan > Sent: Tuesday, May 3, 2016 4:11 PM > To: Kirsher, Jeffrey T <[email protected]>; Brandeburg, Jesse > <[email protected]>; Nelson, Shannon > <[email protected]>; Wyborny, Carolyn > <[email protected]>; Skidmore, Donald C > <[email protected]>; Allan, Bruce W <[email protected]>; > Ronciak, John <[email protected]>; Williams, Mitch A > <[email protected]> > Cc: [email protected]; [email protected]; linux- > [email protected]; Nathan Sullivan <[email protected]> > 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 <[email protected]> > --- > 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 <[email protected]>
