| VGE(4) | Device Drivers Manual | VGE(4) | 
vge —
vge* at pci? dev ? function ?
Configuration of PHYs is also necessary. See mii(4).
vge driver provides support for various NICs and
  embedded Ethernet interfaces based on the VIA Networking Technologies VT6122
  Gigabit Ethernet controller chips.
The 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 MAC supports TCP/IP hardware checksums (IPv4 only), TCP large send, VLAN tag insertion and stripping, as well as VLAN filtering, 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 VT6122 has a 16K receive FIFO and 48K transmit FIFO.
The vge driver takes advantage of the
    VT6122'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 perfect multicast address filter support. If it is
    necessary for the interface 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:
autoselect10baseT/UTPmediaopt option can also be used to select either
      full-duplex or half-duplex
      modes.100baseTXmediaopt option can also be used to select either
      full-duplex or half-duplex
      modes.1000baseTXmediaopt option can also be used to select either
      full-duplex or half-duplex
      modes.The vge driver supports the following
    media options:
full-duplexhalf-duplexThe vge driver also supports one special
    link option for 1000baseTX cards:
link0vge driver configures the ports as slaves by
      default. Setting the link0 flag with
      ifconfig(8) will set a
      port as a master instead.For more information on configuring this device, see ifconfig(8).
vge driver supports VIA Networking VT3119 and VT6122
  based Gigabit Ethernet adapters including:
vge device driver first appeared in
  FreeBSD 5.3 and then in NetBSD
  3.0.
vge driver was written by Bill
  Paul
  <wpaul@windriver.com>.
  The NetBSD port was done by Jaromir
  Dolecek ⟨jdolecek@NetBSD.org⟩.
| March 5, 2005 | NetBSD 10.0 |