Enabling SR-IOV for Mellanox Infiniband cards

daiqizhi

# mlxconfig -d 81:00.0 s SRIOV_EN=1
# mlxconfig -d 81:00.0 s NUM_OF_VFS=16
# mlxconfig -d 81:00.0 q | grep -e SRIOV_EN -e NUM_OF_VFS