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. - Patch 1 adds the new option. - Patches 2-4 adds support for MII time stamping in non-PHY devices. - Patch 5 adds a driver implementing the new option. Earlier today I posted user space support as an RFC on the linuxptp-devel list. Comments and review are most welcome. Thanks, Richard Richard Cochran (5): net: Introduce peer to peer one step PTP time stamping. net: phy: Move time stamping interface into the generic mdio layer. net: Introduce field for the MII time stamper. net: Use the generic MII time stamper when available. net: mdio: Add a driver for InES time stamping IP core. Documentation/devicetree/bindings/net/ines-ptp.txt | 42 + drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 1 + drivers/net/phy/Makefile | 1 + drivers/net/phy/dp83640.c | 29 +- drivers/net/phy/ines_ptp.c | 857 +++++++++++++++++++++ drivers/net/phy/mdio_bus.c | 51 +- drivers/net/phy/phy.c | 6 +- drivers/ptp/Kconfig | 10 + include/linux/mdio.h | 23 + include/linux/netdevice.h | 1 + include/linux/phy.h | 23 - include/uapi/linux/net_tstamp.h | 8 + net/Kconfig | 8 +- net/core/dev_ioctl.c | 1 + net/core/ethtool.c | 5 +- net/core/timestamping.c | 36 +- 16 files changed, 1034 insertions(+), 68 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ines-ptp.txt create mode 100644 drivers/net/phy/ines_ptp.c -- 2.11.0
