EMAC_STM32F7xx driver supports PTP timestamping for input/output Ethernet frames. Is there a mechanism in Network Middleware drivers to get these timestamps for any TCP/UDP packet received or transmitted?
PTP is quite important in the embedded world, since it may be used for very low-latency time synchronization in manufacturing etc.
There aren't so many options for having sub-microsecond time synchronization between distributed sensors and controllers.