message: Make the DataInterface engine parameter work in SST RDMA DP
diff: @@ -1024,7 +1024,14 @@ static int RdmaGetPriority(CP_Services Svcs, void *CP_Stream,
  hints->domain_attr->mr_mode = FI_MR_BASIC;
  hints->ep_attr->type = FI_EP_RDM;
  + if (Params->DataInterface)
  + {
  + ifname = Params->DataInterface;
  + }
  + else
  + {
  ifname = getenv("FABRIC_IFACE");
  + }
  fi_getinfo(FI_VERSION(1, 5), NULL, NULL, 0, hints, &info);
  fi_freeinfo(hints);
  