Thank you for the post. I am not an expert on this ethernet controller but I found on our ark.intel.com, the specs show the controller support IEEE 1588.
Hope this helps.
Thanks for the response. I found the same specs but we are interested in the detailed datasheet. Fo example, the link below is the datasheet for XL710 controller
We need the same info for FM10420.
Datasheet for FM10420 can be found at Intel® Ethernet Multi-host Controller FM 10000 Family: Datasheet
A linux version of the fm10k driver can be found on sourceforge at Intel Ethernet Drivers and Utilities - Browse /fm10k stable/0.19.3 at SourceForge.net , or 3'd party websites for newer version ( fm10k-0.20.1.tar.gz )