proxmox ve 3 on hp dl580

I'm occuring a problem with ve 3.0 on a HP dl580.

the ethernet coontroller, managed by kernel driver netxen_nic, fails to setup the ethernet interfaces (4) available on the server.

more deeply: the module loads the firmware
phanfw-4.0.579.bin
as we can found it in /lib/firmware

but probably the 2.6.32-20-pve not yet supports this hardware version.
I got this message:

failed to write through agent

any suggestion will be appreciated