mgb4

Usage

if_mgb_load="YES"

Overview

The mgb driver is experimental, and has a number of caveats and limitations. It is currently available only as a kernel module.

The mgb device driver provides support for PCIe Gigabit Ethernet adapters based on Microchip's LAN7430 and LAN7431.

For more information on configuring this device, see ifconfig(8).

Hardware

The mgb driver supports Microchip PCIe Gigabit Ethernet interfaces, including:

• Microchip LAN7430 PCIe Gigabit Ethernet controller with PHY

• Microchip LAN7431 PCIe Gigabit Ethernet controller with RGMII interface

Caveats

The driver does not yet implement support for many hardware features, including:

• Multiple RX queue support

• RX and TX checksum offload

• Hardware VLAN tagging or untagging

• Multicast receive packet filtering

• Wake on LAN (WoL)

• LSO

• RSS

LAN7431 support is completely untested.