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    The following form allows you to view linux man pages.

    Command:

    nfe

    
         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 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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