To check the network adapter driver and firmware versions use the Linux ethtool command. For example:
# ethtool -i eth<N>Note: The in-tree Solarflare drivers that
are supplied with Linux distributions do not fully support PTP. The in-tree driver will be version 4.0 or 4.1. For example, this is an in-tree
driver that does not fully support PTP:
# ethtool -i eth<N>
sfc 4.0Refer to Hardware and Software Support for driver and firmware information.