.\" $OpenBSD: vge.4,v 1.13 2008/04/03 02:54:08 brad Exp $ .\" $FreeBSD: vge.4,v 1.6 2004/11/24 19:06:43 brueffer Exp $ .\" .\" Copyright (c) 2004 .\" Bill Paul . All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by Bill Paul. .\" 4. Neither the name of the author nor the names of any co-contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD .\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR .\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS .\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN .\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF .\" THE POSSIBILITY OF SUCH DAMAGE. .\" .Dd $Mdocdate: April 3 2008 $ .Dt VGE 4 .Os .Sh NAME .Nm vge .Nd VIA Networking Technologies VT6122 PCI 10/100/Gigabit Ethernet device .Sh SYNOPSIS .Cd "vge* at pci?" .Cd "ciphy* at mii?" .Sh DESCRIPTION The .Nm driver provides support for various NICs and embedded Ethernet interfaces based on the VIA Networking Technologies VT6122 Gigabit Ethernet controller chips, including the following: .Pp .Bl -bullet -compact .It VIA Networking LAN-on-motherboard Gigabit Ethernet .It ZyXEL GN650-T 64-bit PCI Gigabit Ethernet NIC (ZX1701) .It ZyXEL GN670-T 32-bit PCI Gigabit Ethernet NIC (ZX1702) .El .Pp 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 IPv4 transmit/receive IP/TCP/UDP hardware checksum offload, VLAN tag insertion and stripping, 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. .Pp The .Nm driver takes advantage of the VT6122's checksum offload and the 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. .Pp The .Nm driver supports the following media types: .Bl -tag -width 10baseTXUTP .It Cm autoselect Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the appropriate .Xr hostname.if 5 file. .It Cm 10baseT/UTP Set 10Mbps operation. The .Xr ifconfig 8 .Ic mediaopt option can also be used to select either .Cm full-duplex or .Cm half-duplex modes. .It Cm 100baseTX Set 100Mbps (Fast Ethernet) operation. The .Xr ifconfig 8 .Ic mediaopt option can also be used to select either .Cm full-duplex or .Cm half-duplex modes. .It Cm 1000baseT Set 1000baseT operation over twisted pair. Both .Cm full-duplex and .Cm half-duplex modes are supported. .El .Pp The .Nm driver supports the following media options: .Bl -tag -width full-duplex .It Cm full-duplex Force full duplex operation. .It Cm half-duplex Force half duplex operation. .El .Pp For more information on configuring this device, see .Xr ifconfig 8 . .Sh SEE ALSO .Xr arp 4 , .Xr ciphy 4 , .Xr ifmedia 4 , .Xr intro 4 , .Xr netintro 4 , .Xr pci 4 , .Xr hostname.if 5 , .Xr ifconfig 8 .Sh HISTORY The .Nm device driver first appeared in .Ox 3.7 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Bill Paul Aq wpaul@windriver.com and ported to .Ox by .An Peter Valchev Aq pvalchev@openbsd.org .