Many Linux distributions include an in-tree version of the sfc driver:
sfptpd3.5.0 onwards, the in-tree driver is supported. The out-of-tree driver from the NIC Software and Drivers downloads page on the Xilinx website is recommended for best performance.
- Earlier versions of
sfptpdcannot use an in-tree driver.
To identify if the adapter is using an in-tree driver run the following
# ethtool -i <interface> version: 4.0 firmware-version: 126.96.36.19998
If the reported version is 4.0 or 4.1, it is an in-tree driver.