if_nfe(4) manual page

To compile this driver into the kernel, place the following lines in your kernel configuration file: device miibus device nfe

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

if_nfe_load="YES"

The nfe driver supports PCI Ethernet adapters based on the NVIDIA nForce Media and Communications Processors (MCP), such as the nForce, nForce 2, nForce 3, CK804, MCP04, MCP51, MCP55, MCP61, MCP65, MCP67, MCP73, MCP77 and MCP79 Ethernet controller chips.

Supported features include (hardware support provided):

Receive/Transmit IP/TCP/UDP checksum offload
Hardware VLAN tag insertion/stripping
TCP segmentation offload (TSO)
MSI/MSI-X
Jumbo Frames

Support for Jumbo Frames is provided via the interface MTU setting. Selecting an MTU larger than 1500 bytes with the ifconfig(8) utility configures the adapter to receive and transmit Jumbo Frames.

The nfe driver supports the following media types:

autoselect Enable autoselection of the media type and options.

10baseT/UTP

Set 10Mbps operation.

100baseTX Set 100Mbps (Fast Ethernet) operation.

1000baseT Set 1000Mbps (Gigabit Ethernet) operation (recent models only).

The nfe driver supports the following media options:

half-duplex

Force half duplex operation.

full-duplex

Force full duplex operation.

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

Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

hw.nfe.msi_disable
	Whether or not MSI support is enabled in the driver. The default value is 0.
hw.nfe.msix_disable
	Whether or not MSI-X support is enabled in the driver. The default value is 0.

The following sysctl(8) variables can be used to modify or monitor nfe behavior.

dev.nfe.%d.process_limit
	Maximum number of Rx events to be processed in the event loop before rescheduling a taskqueue. The accepted range is 50 to 255, the default value is 192. The interface does not need to be brought down and up again before a change takes effect.

altq(4), arp(4), intro(4), miibus(4), netintro(4), pci(4), polling(4), rgephy(4), ifconfig(8), sysctl(8)

Manual Pages — NFE

NAME

CONTENTS

SYNOPSIS

DESCRIPTION

HARDWARE

LOADER TUNABLES

SYSCTL VARIABLES

SEE ALSO

HISTORY

AUTHORS

autoselect	Enable autoselection of the media type and options.
10baseT/UTP
	Set 10Mbps operation.
100baseTX	Set 100Mbps (Fast Ethernet) operation.
1000baseT	Set 1000Mbps (Gigabit Ethernet) operation (recent models only).

half-duplex
	Force half duplex operation.
full-duplex
	Force full duplex operation.