HP/HPE NIC PCI and MAC Information (Type 233)

Source: dmidecode, dmioem.c. No dumps of the data corpus hold the structure.

Describes a network port the firmware boots from over PXE, one per structure. The shortest structures end after the first 6 bytes of the MAC address, at 0x0E. A port is disabled if its bus and device are zero, and not installed if they have all bits set.

Table 1. HP/HPE NIC PCI and MAC Information structure
Offset	Version	Name	Length	Value	Description
`0x00`	2.0+	Type	`BYTE`	`233`	HP/HPE 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+	Segment Group	`WORD`	`NUMBER`	PCI segment group, zero for a single group topology
`0x06`	2.0+	Bus	`BYTE`	`NUMBER`	PCI bus
`0x07`	2.0+	Device and Function	`BYTE`	`NUMBER`	PCI device and function
`0x08`	2.0+	MAC Address	32 BYTEs	Varies	MAC address padded with zeroes
`0x28`	2.0+	Port	`BYTE`	`NUMBER`	Number of the port
`0x29`	2.0+	UEFI Device Path	`BYTE`	`STRING`	UEFI device path of the port