On Fri, 2016-02-12 at 12:25 -0800, Christopher S. Hall wrote: > Modern Intel systems supports cross timestamping of the network > device > clock and Always Running Timer (ART) in hardware. This allows the > device time and system time to be precisely correlated. The timestamp > pair is returned through e1000e_phc_get_syncdevicetime() used by > get_system_device_crosststamp(). The hardware cross-timestamp result > is made available to applications through the PTP_SYS_OFFSET_PRECISE > ioctl which calls e1000e_phc_getcrosststamp(). > > Signed-off-by: Christopher S. Hall <[email protected]> > [jstultz: Reworked to use new interface, commit message tweaks] > Signed-off-by: John Stultz <[email protected]> > --- > drivers/net/ethernet/intel/Kconfig | 9 +++ > drivers/net/ethernet/intel/e1000e/defines.h | 5 ++ > drivers/net/ethernet/intel/e1000e/ptp.c | 85 > +++++++++++++++++++++++++++++ > drivers/net/ethernet/intel/e1000e/regs.h | 4 ++ > 4 files changed, 103 insertions(+)
Acked-by: Jeff Kirsher <[email protected]> I am fine with Christopher's changes, so when the issues with the other patches in the series gets ironed out, your good to apply this patch as well John.
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