RDMA/RoCE support on FortiSwitches

I am evaluating what it would take to implement RDMA/RoCE, specifically with Storage Spaces Direct.  I see where the Data Center Series switches (1000/3000) support IEEE 802.1Qbb Priority-based Flow Control (PFC) but I don't see mention of Data Center Bridging (DCB) or Enhanced Transmission Selection (ETS) which are typically also associated with implementing RoCE.  I've done some basic searching and find articles from Cisco, Mellanox, Juniper, Microsoft, etc, but I don't see any references to configuring RoCE on FortiSwitches.  Is it possible?  And if not, is it on any roadmap or do you recommend other technologies like iWARP?