1.\" $OpenBSD: ixgb.4,v 1.14 2014/09/14 00:17:09 brad Exp $ 2.\" Copyright (c) 2002 Intel Corporation 3.\" All rights reserved. 4.\" Redistribution and use in source and binary forms of the Software, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code of the Software may retain the above 8.\" copyright notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form of the Software may reproduce the 10.\" above copyright notice, this list of conditions and the following 11.\" disclaimer in the documentation and/or other materials provided with the 12.\" distribution. 13.\" 3. Neither the name of the Intel Corporation nor the names of its contributors 14.\" shall be used to endorse or promote products derived from this Software 15.\" without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18.\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20.\" ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR ITS CONTRIBUTORS BE LIABLE 21.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 23.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 24.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 26.\" USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" * Other names and brands may be claimed as the property of others. 29.\" 30.\" $FreeBSD: em.4,v 1.18 2005/01/30 12:29:06 yar Exp $ 31.Dd $Mdocdate: September 14 2014 $ 32.Dt IXGB 4 33.Os 34.Sh NAME 35.Nm ixgb 36.Nd Intel PRO/10GbE 10Gb Ethernet device 37.Sh SYNOPSIS 38.Cd "ixgb* at pci?" 39.Sh DESCRIPTION 40The 41.Nm 42driver provides support for PCI-X 10Gb Ethernet adapters based on the 43Intel 82597EX Ethernet controller chips. 44The driver supports IPv4 receive IP/TCP/UDP checksum offload, VLAN tag 45insertion and stripping, and jumbo frames. 46This includes the following models: 47.Pp 48.Bl -item -offset indent -compact 49.It 50Intel PRO/10GbE CX4 Server Adapter (PXLA8591CX4) 51.It 52Intel PRO/10GbE LR Server Adapter (PXLA8591LR) 53.It 54Intel PRO/10GbE SR Server Adapter (PXLA8591SR) 55.It 56Sun 10 Gigabit Ethernet PCI-X Adapter (X5544A-4) 57.El 58.Pp 59The 60.Nm 61driver supports the following media types: 62.Bl -tag -width autoselect -offset indent 63.It autoselect 64Enables auto-negotiation for speed and duplex. 65.It 10GbaseLR 66Sets 10Gbps operation. 67Only full-duplex mode is supported at this speed. 68.It 10GbaseSR 69Sets 10Gbps operation. 70Only full-duplex mode is supported at this speed. 71.El 72.Pp 73For more information on configuring this device, see 74.Xr ifconfig 8 . 75.Sh SEE ALSO 76.Xr arp 4 , 77.Xr ifmedia 4 , 78.Xr intro 4 , 79.Xr netintro 4 , 80.Xr pci 4 , 81.Xr hostname.if 5 , 82.Xr ifconfig 8 83.Sh HISTORY 84The 85.Nm 86device driver first appeared in 87.Ox 3.9 . 88.Sh AUTHORS 89The 90.Nm 91driver was written by 92.An Intel Corporation . 93.Sh BUGS 94Under small packet UDP stress tests with 10GbE driver, the 95.Ox 96system will drop UDP packets due to the fullness of the socket buffers. 97You may want to change the driver's Flow Control variables to the minimum 98value for controlling packet reception. 99.Pp 100Excessive CRC errors may be observed if the Intel PRO/10GbE CX4 Server 101adapter is connected to a Fujitsu XENPAK CX4 module in a SmartBits chassis 102using 15m/24AWG cable assemblies manufactured by Fujitsu or Leoni. 103The CRC errors may be received either by the Intel PRO/10GbE CX4 Server 104adapter or the SmartBits. 105If this situation occurs, using a different cable assembly may resolve the 106issue. 107.Pp 108Excessive CRC errors may be observed if the Intel PRO/10GbE CX4 Server 109adapter is connected to an HP Procurve 3400cl switch port using short cables 110(1m or shorter). 111If this situation occurs, using a longer cable may resolve the issue. 112.Pp 113Excessive CRC errors may be observed using Fujitsu 24AWG cable assemblies that 114are 10m or longer or where using a Leoni 15 m/24AWG cable assembly. 115The CRC errors may be received either by the CX4 Server adapter 116or at the switch. 117If this situation occurs, using a different cable assembly 118may resolve the issue. 119