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media option generally should be used instead. Actually I think the lists of media types should be removed from the manual pages of MAC drivers altogether and users just pointed to the output of `ifconfig -m` instead; even before r215297 there were several outdated descriptions, technically it's wrong most of the time as not the MAC drivers support these media types but actually the PHY drivers do and it generally doesn't make sense to maintain these lists in every manual page of a driver as the media is auto-detected.
228 lines
6.4 KiB
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228 lines
6.4 KiB
Groff
.\" Copyright (c) 2001 Wind River Systems
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.\" Copyright (c) 1997, 1998, 1999, 2000, 2001
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.\" Bill Paul <wpaul@bsdi.com>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Bill Paul.
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.\" 4. Neither the name of the author nor the names of any co-contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 23, 2010
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.Dt NGE 4
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.Os
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.Sh NAME
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.Nm nge
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.Nd "National Semiconductor PCI Gigabit Ethernet adapter driver"
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following lines in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device miibus"
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.Cd "device nge"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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if_nge_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for various NICs based on the National Semiconductor
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DP83820 and DP83821 Gigabit Ethernet controller chips.
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.Pp
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The DP83820 supports TBI (ten bit interface) and GMII
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transceivers, which means it can be used with either copper or 1000baseX
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fiber applications.
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The DP83820 supports TCP/IP checksum offload and
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VLAN tagging/insertion as well as a 2048-bit multicast hash filter
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and up to 4 pattern match buffers.
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.Pp
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Most cards also use the DP83861 10/100/1000 copper gigabit transceiver
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chip, which supports autonegotiation of 10, 100 and 1000Mbps modes in
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full or half duplex.
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.Pp
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The DP83820 and DP83821 also support jumbo frames, which can be
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configured via the interface MTU setting.
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Selecting an MTU larger than 1500 bytes with the
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.Xr ifconfig 8
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utility configures the adapter to receive and transmit jumbo frames.
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Using jumbo frames can greatly improve performance for certain tasks,
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such as file transfers and data streaming.
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.Pp
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The
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.Nm
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driver supports the following media types:
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.Bl -tag -width 10baseTXUTP
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.It Cm autoselect
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Enable autoselection of the media type and options.
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The user can manually override
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the autoselected mode by adding media options to
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.Xr rc.conf 5 .
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.It Cm 10baseT/UTP
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Set 10Mbps operation.
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The
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.Xr ifconfig 8
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.Ic mediaopt
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option can also be used to select either
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.Cm full-duplex
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or
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.Cm half-duplex
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modes.
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.It Cm 100baseTX
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Set 100Mbps (Fast Ethernet) operation.
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The
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.Xr ifconfig 8
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.Ic mediaopt
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option can also be used to select either
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.Cm full-duplex
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or
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.Cm half-duplex
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modes.
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.It Cm 1000baseTX
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Set 1000baseTX operation over twisted pair.
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.Cm full-duplex
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and
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.Cm half-duplex
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modes are supported.
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.It Cm 1000baseSX
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Set 1000Mbps (Gigabit Ethernet) operation.
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Both
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.Cm full-duplex
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and
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.Cm half-duplex
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modes are supported.
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.El
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.Pp
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The
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.Nm
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driver supports the following media options:
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.Bl -tag -width full-duplex
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.It Cm full-duplex
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Force full duplex operation.
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.It Cm half-duplex
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Force half duplex operation.
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.El
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.Pp
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For more information on configuring this device, see
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.Xr ifconfig 8 .
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.Sh HARDWARE
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The
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.Nm
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driver supports National Semiconductor DP83820 and DP83821 based
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Gigabit Ethernet adapters including:
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.Pp
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.Bl -bullet -compact
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.It
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Addtron AEG320T
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.It
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Ark PC SOHO-GA2500T (32-bit PCI) and SOHO-GA2000T (64-bit PCI)
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.It
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Asante FriendlyNet GigaNIX 1000TA and 1000TPC
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.It
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D-Link DGE-500T
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.It
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Linksys EG1032, revision 1
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.It
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Netgear GA621
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.It
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Netgear GA622T
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.It
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SMC EZ Card 1000 (SMC9462TX)
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.It
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Surecom Technology EP-320G-TX
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.It
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Trendware TEG-PCITX (32-bit PCI) and TEG-PCITX2 (64-bit PCI)
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.El
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.Sh SYSCTL VARIABLES
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The following variables are available as both
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.Xr sysctl 8
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variables and
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.Xr loader 8
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tunables:
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.Bl -tag -width "xxxxxx"
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.It Va dev.nge.%d.int_holdoff
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Maximum amount of time to delay interrupt processing in units of
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100us.
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The accepted range is 0 to 255, the default is 1(100us).
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Value 0 completely disables the interrupt moderation.
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The interface has to be brought down and up again before a change
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takes effect.
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.El
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "nge%d: couldn't map memory"
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A fatal initialization error has occurred.
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.It "nge%d: couldn't map ports"
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A fatal initialization error has occurred.
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.It "nge%d: couldn't map interrupt"
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A fatal initialization error has occurred.
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.It "nge%d: no memory for softc struct!"
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The driver failed to allocate memory for per-device instance information
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during initialization.
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.It "nge%d: failed to enable memory mapping!"
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The driver failed to initialize PCI shared memory mapping.
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This might
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happen if the card is not in a bus-master slot.
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.It "nge%d: no memory for jumbo buffers!"
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The driver failed to allocate memory for jumbo frames during
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initialization.
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.It "nge%d: watchdog timeout"
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The device has stopped responding to the network, or there is a problem with
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the network connection (cable).
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.El
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.Sh SEE ALSO
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.Xr altq 4 ,
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.Xr arp 4 ,
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.Xr miibus 4 ,
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.Xr netintro 4 ,
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.Xr ng_ether 4 ,
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.Xr polling 4 ,
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.Xr vlan 4 ,
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.Xr ifconfig 8
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.Rs
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.%T National Semiconductor DP83820 datasheet
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.%U http://www.national.com
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.Re
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.Rs
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.%T National Semiconductor DP83861 datasheet
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.%U http://www.national.com
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.Re
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 4.4 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by
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.An Bill Paul Aq wpaul@bsdi.com .
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