0dded3391e
PR: 167810
Submitted by: Bryan Drewery {bryan!shatow%net} (hackers lounge)
Found with: textproc/igor
MFC after: 3 days
226 lines
7.0 KiB
Groff
226 lines
7.0 KiB
Groff
.\" Copyright (c) 2004
|
|
.\" Bill Paul <wpaul@windriver.com>. 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 29, 2011
|
|
.Dt VGE 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm vge
|
|
.Nd "VIA Networking Technologies Velocity Gigabit Ethernet adapter driver"
|
|
.Sh SYNOPSIS
|
|
To compile this driver into the kernel,
|
|
place the following lines in your
|
|
kernel configuration file:
|
|
.Bd -ragged -offset indent
|
|
.Cd "device miibus"
|
|
.Cd "device vge"
|
|
.Ed
|
|
.Pp
|
|
Alternatively, to load the driver as a
|
|
module at boot time, place the following line in
|
|
.Xr loader.conf 5 :
|
|
.Bd -literal -offset indent
|
|
if_vge_load="YES"
|
|
.Ed
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
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.
|
|
.Pp
|
|
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 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 (not on VT6130/VT6132) up to 16K in size.
|
|
The Velocity family controllers have a 16K receive FIFO and 48K transmit FIFO.
|
|
.Pp
|
|
The
|
|
.Nm
|
|
driver takes advantage of the controller's checksum offload and VLAN
|
|
tagging features, as well as the jumbo frame (except VT6130/VT6132) 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.
|
|
.Pp
|
|
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.
|
|
Jumbo frames are disabled on the VT6130/VT6132 controllers because the TX
|
|
MAC will hang when trying to send a frame that is larger than 4K.
|
|
The receive and transmit checksum offload support
|
|
can be toggled on and off using the
|
|
.Xr ifconfig 8
|
|
utility.
|
|
.Pp
|
|
The
|
|
.Nm
|
|
driver supports the following media types:
|
|
.Bl -tag -width ".Cm 10baseT/UTP"
|
|
.It Cm autoselect
|
|
Enable autoselection of the media type and options.
|
|
The user can manually override
|
|
the autoselected mode by adding media options to
|
|
.Xr rc.conf 5 .
|
|
.It Cm 10baseT/UTP
|
|
Set 10Mbps operation.
|
|
The
|
|
.Xr ifconfig 8
|
|
.Cm 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
|
|
.Cm mediaopt
|
|
option can also be used to select either
|
|
.Cm full-duplex
|
|
or
|
|
.Cm half-duplex
|
|
modes.
|
|
.It Cm 1000baseTX
|
|
Set 1000baseTX operation over twisted pair.
|
|
The
|
|
.Xr ifconfig 8
|
|
.Cm mediaopt
|
|
option can also be used to select either
|
|
.Cm full-duplex
|
|
or
|
|
.Cm half-duplex
|
|
modes.
|
|
.El
|
|
.Pp
|
|
The
|
|
.Nm
|
|
driver supports the following media options:
|
|
.Bl -tag -width ".Cm 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 HARDWARE
|
|
The
|
|
.Nm
|
|
driver supports VIA Networking VT6120, VT6122, VT6130 and VT6132 based
|
|
Gigabit Ethernet adapters including:
|
|
.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
|
|
.Sh LOADER TUNABLES
|
|
Tunables can be set at the
|
|
.Xr loader 8
|
|
prompt before booting the kernel or stored in
|
|
.Xr loader.conf 5 .
|
|
.Bl -tag -width "xxxxxx"
|
|
.It Va hw.vge.msi_disable
|
|
This tunable disables MSI support on the Ethernet hardware.
|
|
The default value is 0.
|
|
.El
|
|
.Sh SYSCTL VARIABLES
|
|
The following variables are available as both
|
|
.Xr sysctl 8
|
|
variables and
|
|
.Xr loader 8
|
|
tunables:
|
|
.Bl -tag -width "xxxxxx"
|
|
.It Va 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 resolution 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.
|
|
.It Va 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.
|
|
.It Va 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.
|
|
.El
|
|
.Sh DIAGNOSTICS
|
|
.Bl -diag
|
|
.It "vge%d: couldn't map memory"
|
|
A fatal initialization error has occurred.
|
|
.It "vge%d: couldn't map ports"
|
|
A fatal initialization error has occurred.
|
|
.It "vge%d: couldn't map interrupt"
|
|
A fatal initialization error has occurred.
|
|
.It "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.
|
|
.It "vge%d: watchdog timeout"
|
|
The device has stopped responding to the network, or there is a problem with
|
|
the network connection (cable).
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr altq 4 ,
|
|
.Xr arp 4 ,
|
|
.Xr miibus 4 ,
|
|
.Xr netintro 4 ,
|
|
.Xr ng_ether 4 ,
|
|
.Xr polling 4 ,
|
|
.Xr vlan 4 ,
|
|
.Xr ifconfig 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
device driver first appeared in
|
|
.Fx 5.3 .
|
|
.Sh AUTHORS
|
|
The
|
|
.Nm
|
|
driver was written by
|
|
.An Bill Paul Aq wpaul@windriver.com .
|