Hi
The B22hp only supports FCoE (besides classical Ethernet), not native FC !
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-b22-blade-fabric-extender/data_sheet_c78-685265.pdf
If you need FC on your host, you will install a CNA adaptor; your OS then sees classical FC; all tools for FC, e.g. Multipathing works as well unchanged.
Walter.