.\" $OpenBSD: lge.4,v 1.29 2022/02/18 10:24:32 jsg Exp $
.\" Copyright (c) 2001 Wind River Systems
.\" Copyright (c) 1997, 1998, 1999, 2000, 2001
.\"	Bill Paul <william.paul@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: src/share/man/man4/lge.4,v 1.3 2001/07/06 08:34:13 ru Exp $
.\"
.Dd $Mdocdate: February 18 2022 $
.Dt LGE 4
.Os
.Sh NAME
.Nm lge
.Nd Level 1 LXT1001 NetCellerator PCI 1Gb Ethernet device
.Sh SYNOPSIS
.Cd "lge* at pci?"
.Cd "xmphy* at mii?"
.Sh DESCRIPTION
The
.Nm
driver provides support for various NICs based on the Level 1 LXT1001
NetCellerator Gigabit Ethernet controller chip, including the
following:
.Pp
.Bl -bullet -compact
.It
Allied Telesis CentreCOM LA1000-PCI-SX
.It
D-Link DGE-500SX
.It
SMC TigerCard 1000 (SMC9462SX)
.El
.Pp
These NICs are capable of 1000Mbps speeds over fiber optic cable.
The LXT1001 also supports a GMII port for use with 10/100/1000 copper
PHYs, however there aren't currently any NICs on the market that use
this feature.
.Pp
The LXT1001 supports IPv4 receive IP/TCP/UDP checksum offload
as well as a 64-bit multicast hash filter.
It also supports jumbo frames.
.Pp
The
.Nm
driver supports the following media types:
.Bl -tag -width full-duplex
.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 1000baseSX
Set 1000baseSX operation over fiber optic cable.
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 DIAGNOSTICS
.Bl -diag
.It "lge0: can't map i/o space"
A fatal initialization error has occurred.
.It "lge0: couldn't map interrupt"
A fatal initialization error has occurred.
.It "lge0: no memory for jumbo buffer queue!"
The driver failed to allocate memory for jumbo frames during
initialization.
.It "lge0: 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 arp 4 ,
.Xr ifmedia 4 ,
.Xr intro 4 ,
.Xr netintro 4 ,
.Xr pci 4 ,
.Xr xmphy 4 ,
.Xr hostname.if 5 ,
.Xr ifconfig 8
.Rs
.%T Level 1 LXT1001 Programming Manual
.%U https://people.freebsd.org/~wpaul/Level1/LXT1001SRM.pdf
.Re
.Sh HISTORY
The
.Nm
device driver first appeared in
.Ox 3.0 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Bill Paul Aq Mt william.paul@windriver.com .