I met a Mellanox HCA before almost 6 years age.
In the VMware vSphere 4.x era, all of works great SRP, IPoIB, ETH on SINGLE HCA with VMware.
But today I just only limited IPoIB and SRP on vSphere 6.5 Update 1 with some tweak on dual SX6036Gs.
I lost many of feature since vSphere ESXi (Not ESX).
Farewell FDR14 solutions ~