Infiniband NIC can not be ACTIVE on BlueFied2

Hi all,
I am experiencing the BlueField-2 device, and i am tring to configure it working as a common Infiniband NIC, but the device port status is always ’DOWN‘.

   Host OFED version:                      LINUX-5.4-
   BlueField-2  operation mode:    EMBEDDED_CPU
   openibd service status:               active

the cmd ibstat output:

port 1 connects to an IB switch by cable and the port status led in switch is ON, there is no cable for port 2.
Could someone help to figure out if I miss some configuration in my case?