142 lines
4.7 KiB
Groff
142 lines
4.7 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 <william.paul@windriver.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 May 30, 2001
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.Dt LGE 4
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.Os
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.Sh NAME
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.Nm lge
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.Nd "Level 1 LXT1001 NetCellerator PCI gigabit ethernet adapter driver"
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.Sh SYNOPSIS
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.Cd "device miibus"
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.Cd "device lge"
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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 Level 1 LXT1001
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NetCellerator gigabit ethernet controller chip, including the
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following:
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.Pp
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.Bl -bullet -compact
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.It
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SMC TigerCard 1000 (SMC9462SX)
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.It
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D-Link DGE-500SX
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.El
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.Pp
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These NICs are capable of 1000mbps speeds over fiber optic cable.
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The LXT1001 also supports a GMII port for use with 10/100/1000 copper
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PHYs, however there aren't currently any NICs on the market that use
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this feature.
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.Pp
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The LXT1001 supports TCP/IP checksum offload for receive and
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VLAN-based filtering as well as a 64-bit multicast hash filter.
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It also supports jumbo frames, which can be configured
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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 1000baseSX
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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 1000baseSX
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Set 1000baseSX operation over fiber optic cable. 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 DIAGNOSTICS
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.Bl -diag
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.It "lge%d: couldn't map memory"
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A fatal initialization error has occurred.
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.It "lge%d: couldn't map ports"
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A fatal initialization error has occurred.
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.It "lge%d: couldn't map interrupt"
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A fatal initialization error has occurred.
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.It "lge%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 "lge%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 "lge%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 "lge%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 arp 4 ,
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.Xr netintro 4 ,
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.Xr ng_ether 4 ,
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.Xr ifconfig 8
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.Rs
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.%T Level 1 LXT1001 Programming Manual
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.%O http://www.freebsd.org/~wpaul/Level1/LXT1001SRM.pdf
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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 5.0 .
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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 william.paul@windriver.com .
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