20190219
* Fix NIC-570: X40 40G could send a corrupt frame to the host at the time the interface was enabled.

20190122
* Fix NIC-556: 40G MAC can get into a bad state where all RX frames are corrupt

20181130
* Fix NIC-473: Flow hashing doesn't work correctly.
* Fix NIC-477: Out-of-order timestamps in 40G.
* Fix NIC-523: If a port is disabled while receiving data, the other port could start receiving corrupt data.
* Fix NIC-531: X40 would only pad the transmitted frames up to 60 bytes.

20180221
* Set PPS termination to disabled by default
* Resolve occasional PCIe initialization failure at card hot reload

20171105
* Initial release of 40G firmware variant