Cant enable RDMA on switch

Hi guys, i am having a bit of trouble enabling RDMA on a dell M620.

I have BCM57810's in all my blades which the white paper says supports RDMA.

I am following some posts on the internet and i have created a hyper-v switch and i am then trying to create the team. This is where i come across my first issue.

When running New-VMSwitch –Name S2DSwitch –NetAdapterName "RDMA1","RDMA2" -EnableEmbeddedTeaming $true -AllowManagementOS $false

It wont let me run it as it doesnt like me specifying 2 NIC's, so i create the switch without a team and then create a vNIC using Add-VMNetworkAdapter –SwitchName S2DSwitch –Name SMB1 –ManagementOS

When i then run enable-netadapterrdma -name "SMB1" or "vethernet (SMB1)" i get the error message

enable-netadapterrdma : No MSFT_NetAdapterRdmaSettingData objects found with property 'Name' equal to

Any help with this would be appreciated.