From: Richard Cochran <richardcochran@xxxxxxxxx> Date: Tue, 28 May 2019 22:58:01 -0700 > This series adds support for PTP (IEEE 1588) P2P one-step time > stamping along with a driver for a hardware device that supports this. > > If the hardware supports p2p one-step, it subtracts the ingress time > stamp value from the Pdelay_Request correction field. The user space > software stack then simply copies the correction field into the > Pdelay_Response, and on transmission the hardware adds the egress time > stamp into the correction field. > > This new functionality extends CONFIG_NETWORK_PHY_TIMESTAMPING to > cover MII snooping devices, but it still depends on phylib, just as > that option does. Expanding beyond phylib is not within the scope of > the this series. > > User space support is available in the current linuxptp master branch. > > - Patch 1 adds the new option. > - Patches 2-5 add support for MII time stamping in non-PHY devices. > - Patch 6 adds a driver implementing the new option. Series applied, thanks Richard.
