.\" Copyright (c) 2007, Neterion Inc
.\" 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 as
.\"    the first lines of this file unmodified.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
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.\" 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
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.\" $FreeBSD: src/share/man/man4/nxge.4,v 1.5.2.2.2.1 2010/12/21 17:09:25 kensmith Exp $
.\"
.Dd October 16, 2007
.Dt NXGE 4
.Os
.Sh NAME
.Nm nxge
.Nd "Neterion Xframe 10GbE Server/Storage adapter driver"
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following line in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device nxge"
.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_nxge_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for Neterion Xframe-I and Xframe-II adapters.
The driver supports TCP Segmentation Offload (TSO/LSO), 
Large Receive Offload (LRO), Jumbo Frames (5 buffer mode), 
Header Separation (Rx 2 buffer mode), VLAN, and Promiscuous mode.
.Pp
For general information and support, please visit the Neterion support page
.Pa http://www.neterion.com/support/support.html .
.Pp
Support for Jumbo Frames is provided via the interface MTU setting.
Selecting an MTU larger than 1500 bytes with the
.Xr ifconfig 8
utility configures the adapter to transmit and receive Jumbo Frames.
Xframe adapters support Jumbo Frames up to 9600 bytes.
.Pp
For Jumbo Frames, the driver will try to allocate physically contiguous buffers.
Failures to do so may degrade the performance.
To resolve such problems, please visit
.Pa http://www.neterion.com
where additional information and a kernel patch can be found.
.Pp
For more information on configuring this device, see
.Xr ifconfig 8 .
.Sh HARDWARE
The
.Nm
driver supports Neterion Xframe 10 Gigabit Ethernet adapters listed in
.Pa http://www.neterion.com/how/pricing.html .
.Sh SUPPORT
For troubleshooting tips and FAQs, please visit
.Pa http://trac.neterion.com/cgi-bin/trac.cgi/wiki/TitleIndex?anonymous .
.Pp
For any issues please send an email to
.Aq support@neterion.com .
.Sh SEE ALSO
.Xr arp 4 ,
.Xr netintro 4 ,
.Xr ifconfig 8
.Sh HISTORY
The
.Nm
device driver first appeared in
.Fx 7.0 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Neterion
.Aq support@neterion.com .