1.\" Copyright (c) 2004 2.\" Bill Paul <wpaul@windriver.com>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by Bill Paul. 15.\" 4. Neither the name of the author nor the names of any co-contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 23.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29.\" THE POSSIBILITY OF SUCH DAMAGE. 30.\" 31.\" $FreeBSD: src/share/man/man4/vge.4,v 1.10 2005/10/07 02:32:15 trhodes Exp $ 32.\" 33.Dd May 20, 2006 34.Dt VGE 4 35.Os 36.Sh NAME 37.Nm vge 38.Nd "VIA Networking Technologies VT6122 PCI Gigabit Ethernet adapter driver" 39.Sh SYNOPSIS 40To compile this driver into the kernel, 41place the following lines in your 42kernel configuration file: 43.Bd -ragged -offset indent 44.Cd "device miibus" 45.Cd "device vge" 46.Ed 47.Pp 48Alternatively, to load the driver as a 49module at boot time, place the following line in 50.Xr loader.conf 5 : 51.Bd -literal -offset indent 52if_vge_load="YES" 53.Ed 54.Sh DESCRIPTION 55The 56.Nm 57driver provides support for various NICs and embedded Ethernet interfaces 58based on the VIA Networking Technologies VT6122 Gigabit Ethernet 59controller chips. 60.Pp 61The VT6122 is a 33/66Mhz 64-bit PCI device which combines a tri-speed MAC with 62an integrated 10/100/1000 copper PHY. 63(Some older cards use an external PHY.) 64The MAC supports TCP/IP hardware 65checksums (IPv4 only), TCP large send, VLAN tag insertion and stripping, 66as well as VLAN filtering, a 64-entry CAM filter and a 64-entry VLAN filter, 6764-bit multicast hash filter, 4 separate transmit DMA queues, flow control 68and jumbo frames up to 16K in size. 69The VT6122 has a 16K receive FIFO and 48K transmit FIFO. 70.Pp 71The 72.Nm 73driver takes advantage of the VT6122's checksum offload and VLAN 74tagging features, as well as the jumbo frame and CAM filter support. 75The CAM filter is used for multicast address filtering to provide 7664 perfect multicast address filter support. 77If it is necessary for the interface to join more than 64 multicast 78groups, the driver will switch over to using the hash filter. 79.Pp 80The jumbo frame support can be enabled by setting the interface MTU 81to any value larger than the default of 1500 bytes, up to a maximum 82of 9000 bytes. 83The receive and transmit checksum offload support 84can be toggled on and off using the 85.Xr ifconfig 8 86utility. 87.Pp 88The 89.Nm 90driver supports the following media types: 91.Bl -tag -width ".Cm 10baseT/UTP" 92.It Cm autoselect 93Enable autoselection of the media type and options. 94The user can manually override 95the autoselected mode by adding media options to 96.Xr rc.conf 5 . 97.It Cm 10baseT/UTP 98Set 10Mbps operation. 99The 100.Xr ifconfig 8 101.Cm mediaopt 102option can also be used to select either 103.Cm full-duplex 104or 105.Cm half-duplex 106modes. 107.It Cm 100baseTX 108Set 100Mbps (Fast Ethernet) operation. 109The 110.Xr ifconfig 8 111.Cm mediaopt 112option can also be used to select either 113.Cm full-duplex 114or 115.Cm half-duplex 116modes. 117.It Cm 1000baseT 118Set 1000baseT operation over twisted pair. 119The 120.Xr ifconfig 8 121.Cm mediaopt 122option can also be used to select either 123.Cm full-duplex 124or 125.Cm half-duplex 126modes. 127.El 128.Pp 129The 130.Nm 131driver supports the following media options: 132.Bl -tag -width ".Cm full-duplex" 133.It Cm full-duplex 134Force full duplex operation. 135.It Cm half-duplex 136Force half duplex operation. 137.El 138.Pp 139The 140.Nm 141driver also supports one special link option for 1000baseT cards: 142.Bl -tag -width ".Cm link0" 143.It Cm link0 144With 1000baseT cards, establishing a link between two ports requires 145that one port be configured as a master and the other a slave. 146With autonegotiation, 147the master/slave settings will be chosen automatically. 148However when manually selecting the link state, it is necessary to 149force one side of the link to be a master and the other a slave. 150The 151.Nm 152driver configures the ports as slaves by default. 153Setting the 154.Cm link0 155flag with 156.Xr ifconfig 8 157will set a port as a master instead. 158.El 159.Pp 160For more information on configuring this device, see 161.Xr ifconfig 8 . 162The 163.Nm 164driver supports 165.Xr polling 4 . 166.Sh HARDWARE 167The 168.Nm 169driver supports VIA Networking VT3119 and VT6122 based 170Gigabit Ethernet adapters including: 171.Pp 172.Bl -bullet -compact 173.It 174VIA Networking LAN-on-motherboard Gigabit Ethernet 175.It 176ZyXEL GN650-T 64-bit PCI Gigabit Ethernet NIC (ZX1701) 177.It 178ZyXEL GN670-T 32-bit PCI Gigabit Ethernet NIC (ZX1702) 179.El 180.Sh DIAGNOSTICS 181.Bl -diag 182.It "vge%d: couldn't map memory" 183A fatal initialization error has occurred. 184.It "vge%d: couldn't map ports" 185A fatal initialization error has occurred. 186.It "vge%d: couldn't map interrupt" 187A fatal initialization error has occurred. 188.It "vge%d: failed to enable memory mapping!" 189The driver failed to initialize PCI shared memory mapping. 190This might 191happen if the card is not in a bus-master slot. 192.It "vge%d: watchdog timeout" 193The device has stopped responding to the network, or there is a problem with 194the network connection (cable). 195.El 196.Sh SEE ALSO 197.Xr arp 4 , 198.Xr ifmedia 4 , 199.Xr miibus 4 , 200.Xr netintro 4 , 201.Xr ng_ether 4 , 202.Xr polling 4 , 203.Xr vlan 4 , 204.Xr ifconfig 8 205.Sh HISTORY 206The 207.Nm 208device driver first appeared in 209.Fx 5.3 . 210It was imported into 211.Dx 1.5 . 212.Sh AUTHORS 213The 214.Nm 215driver was written by 216.An Bill Paul Aq Mt wpaul@windriver.com . 217.Sh BUGS 218.Xr polling 4 219may not work with 220.Nm . 221