Hi,
Already sent my answer to the dpdk mailing list, but also adding it here if anyone else needs it.
RSS on ConnectX-3 cards is working, but doesn't improve the Maximum rate of the NIC, it helps for real application to spread the traffic among different cores.
Therefore with benchmark application you will see degradation with RSS, but with real application the performance should be better with RSS than without.
ConnectX-4 doesn't have this limitation and we suggest using it instead of ConnectX-3
Best Regards,
Olga