cannot use the HUU to upgrade the Programmable Logic Devices (PLD) firmware.
You must use the Cisco IOS CLI to upgrade the PLD firmware. For details, see
the "Upgrading Programmable Logic Devices Firmware on the E-Series EHWIC NCE"
section in the
CLI Configuration Guide for
Cisco UCS E-Series Servers and the Cisco UCS E-Series Network Compute
Upgrade—To manually upgrade the CIMC and BIOS firmware, you must
first obtain the firmware from Cisco Systems, and then use the CIMC GUI or the
CIMC CLI to upgrade it. After you upgrade the firmware, reboot the system.