Hi!
I was trying to initialized timestamp's registers on my NIC (my first case with driver for Ethernet controllers). 
Registers for system time and registers for timestamp of Rx packets were switched on successfully. But I've got some 
problems with Tx packets.
NIC Intel 82574L (VID 8086h, DID 10d3h; OS QNX 6.5.0, io-pkt-v4-hc, devnp-e1000.so).
All details in attached file.

Thanks, 
Yury.