if_nfe man page on FreeBSD

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NFE(4)			 BSD Kernel Interfaces Manual			NFE(4)

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 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"

DESCRIPTION
     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 con‐
     figures 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).

HARDWARE
     The nfe 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.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.

SYSCTL VARIABLES
     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.

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

HISTORY
     The nfe device driver first appeared in OpenBSD 3.9, and then in
     FreeBSD 7.0.

AUTHORS
     The nfe driver was written by Jonathan Gray ⟨jsg@openbsd.org⟩ and Damien
     Bergamini ⟨damien@openbsd.org⟩.  The nfe driver was ported to FreeBSD by
     Shigeaki Tagashira ⟨shigeaki@se.hiroshima-u.ac.jp⟩.

BSD			       January 15, 2011				   BSD
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