HP/HPE BIOS NIC PCI and MAC Information (Type 209, 221)

Source: dmidecode, dmioem.c, and the dumps of the data corpus.

Lists the network ports the firmware boots from: over PXE with type 209, and over iSCSI with type 221. Ports run to the end of the structure, which carries no number of them of its own. A port is disabled if its bus and device are zero, and not installed if they have all bits set.

Type 221 is deprecated from Gen8 onwards. What the newer servers give it to, if anything, is not established, and OpenDMI decodes no structure of that type on them.

Table 1. HP/HPE BIOS NIC PCI and MAC Information structure
Offset	Version	Name	Length	Value	Description
`0x00`	2.0+	Type	`BYTE`	`209, 221`	HP/HPE BIOS NIC PCI and MAC Information indicator
`0x01`	2.0+	Length	`BYTE`	Varies	Length of the structure
`0x02`	2.0+	Handle	`WORD`	Varies
`0x04`	2.0+	Ports	8 BYTEs each	Varies	Ports, see below

Table 2. Port
Offset	Name	Length	Description
`0x00`	Device and Function	`BYTE`	PCI device and function, `(device << 3) \| function`
`0x01`	Bus	`BYTE`	PCI bus
`0x02`	MAC Address	6 BYTEs