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if_nfe (4)
>> if_nfe (4) ( FreeBSD man: Специальные файлы /dev/* )
BSD mandoc
NAME
nfe
- NVIDIA nForce MCP Ethernet driver
SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
device miibusdevice nfe
Alternatively, to load the driver as a
module at boot time, place the following line in
loader.conf5:
if_nfe_load="YES"
DESCRIPTION
The
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
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
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).
HARDWARE
The
driver supports the following NVIDIA MCP onboard adapters:
NVIDIA nForce MCP Networking Adapter
NVIDIA nForce MCP04 Networking Adapter
NVIDIA nForce 430 MCP12 Networking Adapter
NVIDIA nForce 430 MCP13 Networking Adapter
NVIDIA nForce MCP51 Networking Adapter
NVIDIA nForce MCP55 Networking Adapter
NVIDIA nForce MCP61 Networking Adapter
NVIDIA nForce MCP65 Networking Adapter
NVIDIA nForce MCP67 Networking Adapter
NVIDIA nForce MCP73 Networking Adapter
NVIDIA nForce MCP77 Networking Adapter
NVIDIA nForce MCP79 Networking Adapter
NVIDIA nForce2 MCP2 Networking Adapter
NVIDIA nForce2 400 MCP4 Networking Adapter
NVIDIA nForce2 400 MCP5 Networking Adapter
NVIDIA nForce3 MCP3 Networking Adapter
NVIDIA nForce3 250 MCP6 Networking Adapter
NVIDIA nForce3 MCP7 Networking Adapter
NVIDIA nForce4 CK804 MCP8 Networking Adapter
NVIDIA nForce4 CK804 MCP9 Networking Adapter
LOADER TUNABLES
Tunables can be set at the
loader(8)
prompt before booting the kernel or stored in
loader.conf5.
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.
SYSCTL VARIABLES
The following
sysctl(8)
variables can be used to modify or monitor
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.
