1 Reply Latest reply on Nov 28, 2017 1:54 AM by robertw

    SR-IOV and PTP on ConnectX-4

    robertw

      When running SR-IOV, virtual machine can use PTP on card (Mellanox Technologies MT27500/MT27520 Family [ConnectX-3/4 Virtual Function) ?

      Timestamp is required:

      Software time stamping support, the parameters list should include:

      SOF_TIMESTAMPING_SOFTWARE

      SOF_TIMESTAMPING_TX_SOFTWARE

      SOF_TIMESTAMPING_RX_SOFTWARE

       

      For hardware time stamping support, the parameters list should include:

      SOF_TIMESTAMPING_RAW_HARDWARE

      SOF_TIMESTAMPING_TX_HARDWARE

      SOF_TIMESTAMPING_RX_HARDWARE

       

      I tested Intel X520 and unfortunately was missing: SOF_TIMESTAMPING_TX_SOFTWARE  (ethtool show only SOF_TIMESTAMPING_SOFTWARE, SOF_TIMESTAMPING_TX_SOFTWARE).

      ConnectX-3 unfortunately does not work with SR-IOV in VMware. But I do not know how ConnectX-4 works with this configuration.