Does Red Hat Ship NC375i NIC firmware in RPM Format?

Issue

Using an NC375i NIC with the following output in dmesg:

[root@hostname tmp]# grep -i netxen /var/log/dmesg
QLogic/NetXen Network Driver v4.0.65
netxen_nic 0000:04:00.0: 2MB memory map
netxen_nic 0000:04:00.0: using 64-bit dma mask
netxen_nic: NX3031 Gigabit Ethernet Board S/N ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿNX3031 Gigabit Ethernet  Chip rev 0x42
netxen_nic 0000:04:00.0: firmware v4.0.555 [legacy]
netxen_nic 0000:04:00.0: using msi-x interrupts
netxen_nic 0000:04:00.0: eth0: GbE port initialized
netxen_nic 0000:04:00.1: 2MB memory map
netxen_nic 0000:04:00.1: using 64-bit dma mask
netxen_nic 0000:04:00.1: firmware v4.0.555 [legacy]
netxen_nic 0000:04:00.1: using msi-x interrupts
netxen_nic 0000:04:00.1: eth1: GbE port initialized
netxen_nic 0000:04:00.2: 2MB memory map
netxen_nic 0000:04:00.2: using 64-bit dma mask
netxen_nic 0000:04:00.2: firmware v4.0.555 [legacy]
netxen_nic 0000:04:00.2: using msi-x interrupts
netxen_nic 0000:04:00.2: eth2: GbE port initialized
netxen_nic 0000:04:00.3: 2MB memory map
netxen_nic 0000:04:00.3: using 64-bit dma mask
netxen_nic 0000:04:00.3: firmware v4.0.555 [legacy]
netxen_nic 0000:04:00.3: using msi-x interrupts
netxen_nic 0000:04:00.3: eth3: GbE port initialized

Is it possible to upgrade the firmware to v4.0.556 or above using an RPM or gzip/tarball?