As the Nutanix Life Cycle Management (LCM) platform evolves, more firmware entities are added to the module. The latest addition are the NICs associated with Nutanix hardware.
Starting in LCM 2.3.4, firmware updates for Mellanox and SuperMicro NICs on AHV and ESXi are supported. Currently, Hyper-V platforms and Intel/Silicom NIC cards are not supported.
For more information about this feature and software requirements, take a look at KB 10073 found on the Support Portal.