Linux* Base Driver for the Intel(R) PRO/100 Family of Adapters
==============================================================
-November 17, 2004
-
+November 15, 2005
Contents
========
- In This Release
- Identifying Your Adapter
+- Building and Installation
- Driver Configuration Parameters
- Additional Configurations
+- Known Issues
- Support
===============
This file describes the Linux* Base Driver for the Intel(R) PRO/100 Family of
-Adapters, version 3.3.x. This driver supports 2.4.x and 2.6.x kernels.
+Adapters. This driver includes support for Itanium(R)2-based systems.
+
+For questions related to hardware requirements, refer to the documentation
+supplied with your Intel PRO/100 adapter.
+
+The following features are now available in supported kernels:
+ - Native VLANs
+ - Channel Bonding (teaming)
+ - SNMP
+
+Channel Bonding documentation can be found in the Linux kernel source:
+/Documentation/networking/bonding.txt
+
Identifying Your Adapter
========================
-For more information on how to identify your adapter, go to the Adapter &
+For more information on how to identify your adapter, go to the Adapter &
Driver ID Guide at:
http://support.intel.com/support/network/adapter/pro100/21397.htm
-For the latest Intel network drivers for Linux, refer to the following
-website. In the search field, enter your adapter name or type, or use the
+For the latest Intel network drivers for Linux, refer to the following
+website. In the search field, enter your adapter name or type, or use the
networking link on the left to search for your adapter:
http://downloadfinder.intel.com/scripts-df/support_intel.asp
The default value for each parameter is generally the recommended setting,
unless otherwise noted.
-Rx Descriptors: Number of receive descriptors. A receive descriptor is a data
- structure that describes a receive buffer and its attributes to the network
- controller. The data in the descriptor is used by the controller to write
- data from the controller to host memory. In the 3.0.x driver the valid
- range for this parameter is 64-256. The default value is 64. This parameter
- can be changed using the command
-
+Rx Descriptors: Number of receive descriptors. A receive descriptor is a data
+ structure that describes a receive buffer and its attributes to the network
+ controller. The data in the descriptor is used by the controller to write
+ data from the controller to host memory. In the 3.x.x driver the valid range
+ for this parameter is 64-256. The default value is 64. This parameter can be
+ changed using the command:
+
ethtool -G eth? rx n, where n is the number of desired rx descriptors.
-Tx Descriptors: Number of transmit descriptors. A transmit descriptor is a
- data structure that describes a transmit buffer and its attributes to the
- network controller. The data in the descriptor is used by the controller to
- read data from the host memory to the controller. In the 3.0.x driver the
- valid range for this parameter is 64-256. The default value is 64. This
- parameter can be changed using the command
+Tx Descriptors: Number of transmit descriptors. A transmit descriptor is a data
+ structure that describes a transmit buffer and its attributes to the network
+ controller. The data in the descriptor is used by the controller to read
+ data from the host memory to the controller. In the 3.x.x driver the valid
+ range for this parameter is 64-256. The default value is 64. This parameter
+ can be changed using the command:
ethtool -G eth? tx n, where n is the number of desired tx descriptors.
-Speed/Duplex: The driver auto-negotiates the link speed and duplex settings by
- default. Ethtool can be used as follows to force speed/duplex.
+Speed/Duplex: The driver auto-negotiates the link speed and duplex settings by
+ default. Ethtool can be used as follows to force speed/duplex.
ethtool -s eth? autoneg off speed {10|100} duplex {full|half}
NOTE: setting the speed/duplex to incorrect values will cause the link to
fail.
-Event Log Message Level: The driver uses the message level flag to log events
- to syslog. The message level can be set at driver load time. It can also be
- set using the command
+Event Log Message Level: The driver uses the message level flag to log events
+ to syslog. The message level can be set at driver load time. It can also be
+ set using the command:
ethtool -s eth? msglvl n
+
Additional Configurations
=========================
Configuring the Driver on Different Distributions
-------------------------------------------------
- Configuring a network driver to load properly when the system is started is
- distribution dependent. Typically, the configuration process involves adding
- an alias line to /etc/modules.conf as well as editing other system startup
- scripts and/or configuration files. Many popular Linux distributions ship
- with tools to make these changes for you. To learn the proper way to
- configure a network device for your system, refer to your distribution
- documentation. If during this process you are asked for the driver or module
- name, the name for the Linux Base Driver for the Intel PRO/100 Family of
- Adapters is e100.
+ Configuring a network driver to load properly when the system is started is
+ distribution dependent. Typically, the configuration process involves adding
+ an alias line to /etc/modules.conf or /etc/modprobe.conf as well as editing
+ other system startup scripts and/or configuration files. Many popular Linux
+ distributions ship with tools to make these changes for you. To learn the
+ proper way to configure a network device for your system, refer to your
+ distribution documentation. If during this process you are asked for the
+ driver or module name, the name for the Linux Base Driver for the Intel
+ PRO/100 Family of Adapters is e100.
- As an example, if you install the e100 driver for two PRO/100 adapters
- (eth0 and eth1), add the following to modules.conf:
+ As an example, if you install the e100 driver for two PRO/100 adapters
+ (eth0 and eth1), add the following to modules.conf or modprobe.conf:
alias eth0 e100
alias eth1 e100
Viewing Link Messages
---------------------
- In order to see link messages and other Intel driver information on your
- console, you must set the dmesg level up to six. This can be done by
- entering the following on the command line before loading the e100 driver:
+ In order to see link messages and other Intel driver information on your
+ console, you must set the dmesg level up to six. This can be done by
+ entering the following on the command line before loading the e100 driver:
dmesg -n 8
- If you wish to see all messages issued by the driver, including debug
+ If you wish to see all messages issued by the driver, including debug
messages, set the dmesg level to eight.
NOTE: This setting is not saved across reboots.
+
Ethtool
-------
diagnostics, as well as displaying statistical information. Ethtool
version 1.6 or later is required for this functionality.
- The latest release of ethtool can be found at:
- http://sf.net/projects/gkernel.
+ The latest release of ethtool can be found from
+ http://sourceforge.net/projects/gkernel.
- NOTE: This driver uses mii support from the kernel. As a result, when
- there is no link, ethtool will report speed/duplex to be 10/half.
+ NOTE: Ethtool 1.6 only supports a limited set of ethtool options. Support
+ for a more complete ethtool feature set can be enabled by upgrading
+ ethtool to ethtool-1.8.1.
- NOTE: Ethtool 1.6 only supports a limited set of ethtool options. Support
- for a more complete ethtool feature set can be enabled by upgrading
- ethtool to ethtool-1.8.1.
Enabling Wake on LAN* (WoL)
---------------------------
- WoL is provided through the Ethtool* utility. Ethtool is included with Red
- Hat* 8.0. For other Linux distributions, download and install Ethtool from
- the following website: http://sourceforge.net/projects/gkernel.
+ WoL is provided through the Ethtool* utility. Ethtool is included with Red
+ Hat* 8.0. For other Linux distributions, download and install Ethtool from
+ the following website: http://sourceforge.net/projects/gkernel.
- For instructions on enabling WoL with Ethtool, refer to the Ethtool man
- page.
+ For instructions on enabling WoL with Ethtool, refer to the Ethtool man page.
WoL will be enabled on the system during the next shut down or reboot. For
- this driver version, in order to enable WoL, the e100 driver must be
+ this driver version, in order to enable WoL, the e100 driver must be
loaded when shutting down or rebooting the system.
+
NAPI
----
See www.cyberus.ca/~hadi/usenix-paper.tgz for more information on NAPI.
+ Multiple Interfaces on Same Ethernet Broadcast Network
+ ------------------------------------------------------
+
+ Due to the default ARP behavior on Linux, it is not possible to have
+ one system on two IP networks in the same Ethernet broadcast domain
+ (non-partitioned switch) behave as expected. All Ethernet interfaces
+ will respond to IP traffic for any IP address assigned to the system.
+ This results in unbalanced receive traffic.
+
+ If you have multiple interfaces in a server, either turn on ARP
+ filtering by
+
+ (1) entering: echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
+ (this only works if your kernel's version is higher than 2.4.5), or
+
+ (2) installing the interfaces in separate broadcast domains (either
+ in different switches or in a switch partitioned to VLANs).
+
+
Support
=======
http://support.intel.com
+ or the Intel Wired Networking project hosted by Sourceforge at:
+
+ http://sourceforge.net/projects/e1000
+
If an issue is identified with the released source code on the supported
-kernel with a supported adapter, email the specific information related to
-the issue to linux.nics@intel.com.
+kernel with a supported adapter, email the specific information related to the
+issue to e1000-devel@lists.sourceforge.net.
License
=======
-This software program is released under the terms of a license agreement
-between you ('Licensee') and Intel. Do not use or load this software or any
-associated materials (collectively, the 'Software') until you have carefully
-read the full terms and conditions of the LICENSE located in this software
-package. By loading or using the Software, you agree to the terms of this
-Agreement. If you do not agree with the terms of this Agreement, do not
-install or use the Software.
+This software program is released under the terms of a license agreement
+between you ('Licensee') and Intel. Do not use or load this software or any
+associated materials (collectively, the 'Software') until you have carefully
+read the full terms and conditions of the file COPYING located in this software
+package. By loading or using the Software, you agree to the terms of this
+Agreement. If you do not agree with the terms of this Agreement, do not install
+or use the Software.
* Other names and brands may be claimed as the property of others.
git://git.onelab.eu / linux-2.6.git / blobdiff