HW support of PTP/timesync solutions in network PHY chips can be achieved with two different approaches, the timestamp maybe latched either in the beginning or after the Start of Frame Delimiter (SFD) [1].
Allow ptp device drivers to provide user with control over the timestamp latch point. Arkadiusz Kubalewski (2): ptp: add control over HW timestamp latch point ice: ptp: add control over HW timestamp latch point drivers/net/ethernet/intel/ice/ice_ptp.c | 48 +++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 52 +++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 3 +- drivers/ptp/ptp_sysfs.c | 44 +++++++++++++++++ include/linux/ptp_clock_kernel.h | 26 +++++++++++ 5 files changed, 172 insertions(+), 1 deletion(-) -- 2.38.1
