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    The following form allows you to view linux man pages.

    Command:

    vge

    
         To compile this driver into the kernel, place the following lines in your
         kernel configuration file:
    
               device miibus
               device vge
    
         Alternatively, to load the driver as a module at boot time, place the
         following line in loader.conf(5):
    
               if_vge_load="YES"
    
    
    

    DESCRIPTION

         The vge driver provides support for various NICs and embedded Ethernet
         interfaces based on the VIA Technologies VT6120, VT6122, VT6130 and
         VT6132 Velocity Family Gigabit Ethernet controller chips.
    
         The VT6120/VT6122 is a 33/66MHz 64-bit PCI device which combines a tri-
         speed MAC with an integrated 10/100/1000 copper PHY.  (Some older cards
         use an external PHY.)  The VT6130/VT6132 is the PCI express version of
         Velocity family.  The MAC supports TCP/IP hardware checksums (IPv4 only),
         TCP large send, VLAN tag insertion and stripping, as well as VLAN filter-
         ing, a 64-entry CAM filter and a 64-entry VLAN filter, 64-bit multicast
         hash filter, 4 separate transmit DMA queues, flow control and jumbo
         frames up to 16K in size.  The Velocity family controllers have a 16K
         receive FIFO and 48K transmit FIFO.
    
         The vge driver takes advantage of the controller's checksum offload and
         VLAN tagging features, as well as the jumbo frame and CAM filter support.
         The CAM filter is used for multicast address filtering to provide 64 per-
         fect multicast address filter support.  If it is necessary for the inter-
         face to join more than 64 multicast groups, the driver will switch over
         to using the hash filter.
    
         The jumbo frame support can be enabled by setting the interface MTU to
         any value larger than the default of 1500 bytes, up to a maximum of 9000
         bytes.  The receive and transmit checksum offload support can be toggled
         on and off using the ifconfig(8) utility.
    
         The vge driver supports the following media types:
    
         autoselect   Enable autoselection of the media type and options.  The
                      user can manually override the autoselected mode by adding
                      media options to rc.conf(5).
    
         10baseT/UTP  Set 10Mbps operation.  The ifconfig(8) mediaopt option can
                      also be used to select either full-duplex or half-duplex
                      modes.
    
         100baseTX    Set 100Mbps (Fast Ethernet) operation.  The ifconfig(8)
                      mediaopt option can also be used to select either
                      full-duplex or half-duplex modes.
    
         based Gigabit Ethernet adapters including:
    
         ?   VIA Networking LAN-on-motherboard Gigabit Ethernet
         ?   ZyXEL GN650-T 64-bit PCI Gigabit Ethernet NIC (ZX1701)
         ?   ZyXEL GN670-T 32-bit PCI Gigabit Ethernet NIC (ZX1702)
    
    
    

    LOADER TUNABLES

         Tunables can be set at the loader(8) prompt before booting the kernel or
         stored in loader.conf(5).
    
         hw.vge.msi_disable
                 This tunable disables MSI support on the Ethernet hardware.  The
                 default value is 0.
    
    
    

    SYSCTL VARIABLES

         The following variables are available as both sysctl(8) variables and
         loader(8) tunables:
    
         dev.vge.%d.int_holdoff
                 Maximum number of time to delay interrupts.  The valid range is 0
                 to 5100 in units of 1us, the default is 150 (150us).  The resolu-
                 tion of of timer is about 20us so finer tuning than 20us wouldn't
                 be available.  The interface should be brought down and up again
                 before a change takes effect.
    
         dev.vge.%d.rx_coal_pkt
                 Maximum number of packets to fire Rx completion interrupt.  The
                 valid range is 1 to 255, the default is 64.
    
         dev.vge.%d.tx_coal_pkt
                 Maximum number of packets to fire Tx completion interrupt.  The
                 valid range is 1 to 255, the default is 128.
    
    
    

    DIAGNOSTICS

         vge%d: couldn't map memory  A fatal initialization error has occurred.
    
         vge%d: couldn't map ports  A fatal initialization error has occurred.
    
         vge%d: couldn't map interrupt  A fatal initialization error has occurred.
    
         vge%d: failed to enable memory mapping!  The driver failed to initialize
         PCI shared memory mapping.  This might happen if the card is not in a
         bus-master slot.
    
         vge%d: watchdog timeout  The device has stopped responding to the net-
         work, or there is a problem with the network connection (cable).
    
    
    

    SEE ALSO

         altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), polling(4),
         vlan(4), ifconfig(8)
    
    
    

    HISTORY

    
    
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