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Fixed MTP to work with TWRP
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Documentation/networking/e100.txt
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Documentation/networking/e100.txt
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Linux* Base Driver for the Intel(R) PRO/100 Family of Adapters
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==============================================================
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March 15, 2011
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Contents
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========
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- In This Release
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- Identifying Your Adapter
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- Building and Installation
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- Driver Configuration Parameters
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- Additional Configurations
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- Known Issues
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- Support
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In This Release
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===============
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This file describes the Linux* Base Driver for the Intel(R) PRO/100 Family of
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Adapters. This driver includes support for Itanium(R)2-based systems.
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For questions related to hardware requirements, refer to the documentation
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supplied with your Intel PRO/100 adapter.
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The following features are now available in supported kernels:
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- Native VLANs
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- Channel Bonding (teaming)
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- SNMP
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Channel Bonding documentation can be found in the Linux kernel source:
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/Documentation/networking/bonding.txt
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Identifying Your Adapter
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========================
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For more information on how to identify your adapter, go to the Adapter &
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Driver ID Guide at:
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http://support.intel.com/support/network/adapter/pro100/21397.htm
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For the latest Intel network drivers for Linux, refer to the following
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website. In the search field, enter your adapter name or type, or use the
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networking link on the left to search for your adapter:
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http://downloadfinder.intel.com/scripts-df/support_intel.asp
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Driver Configuration Parameters
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===============================
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The default value for each parameter is generally the recommended setting,
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unless otherwise noted.
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Rx Descriptors: Number of receive descriptors. A receive descriptor is a data
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structure that describes a receive buffer and its attributes to the network
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controller. The data in the descriptor is used by the controller to write
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data from the controller to host memory. In the 3.x.x driver the valid range
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for this parameter is 64-256. The default value is 64. This parameter can be
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changed using the command:
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ethtool -G eth? rx n, where n is the number of desired rx descriptors.
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Tx Descriptors: Number of transmit descriptors. A transmit descriptor is a data
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structure that describes a transmit buffer and its attributes to the network
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controller. The data in the descriptor is used by the controller to read
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data from the host memory to the controller. In the 3.x.x driver the valid
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range for this parameter is 64-256. The default value is 64. This parameter
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can be changed using the command:
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ethtool -G eth? tx n, where n is the number of desired tx descriptors.
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Speed/Duplex: The driver auto-negotiates the link speed and duplex settings by
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default. The ethtool utility can be used as follows to force speed/duplex.
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ethtool -s eth? autoneg off speed {10|100} duplex {full|half}
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NOTE: setting the speed/duplex to incorrect values will cause the link to
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fail.
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Event Log Message Level: The driver uses the message level flag to log events
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to syslog. The message level can be set at driver load time. It can also be
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set using the command:
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ethtool -s eth? msglvl n
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Additional Configurations
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=========================
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Configuring the Driver on Different Distributions
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-------------------------------------------------
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Configuring a network driver to load properly when the system is started is
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distribution dependent. Typically, the configuration process involves adding
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an alias line to /etc/modprobe.d/*.conf as well as editing other system
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startup scripts and/or configuration files. Many popular Linux
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distributions ship with tools to make these changes for you. To learn the
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proper way to configure a network device for your system, refer to your
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distribution documentation. If during this process you are asked for the
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driver or module name, the name for the Linux Base Driver for the Intel
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PRO/100 Family of Adapters is e100.
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As an example, if you install the e100 driver for two PRO/100 adapters
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(eth0 and eth1), add the following to a configuration file in /etc/modprobe.d/
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alias eth0 e100
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alias eth1 e100
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Viewing Link Messages
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---------------------
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In order to see link messages and other Intel driver information on your
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console, you must set the dmesg level up to six. This can be done by
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entering the following on the command line before loading the e100 driver:
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dmesg -n 8
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If you wish to see all messages issued by the driver, including debug
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messages, set the dmesg level to eight.
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NOTE: This setting is not saved across reboots.
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ethtool
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-------
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The driver utilizes the ethtool interface for driver configuration and
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diagnostics, as well as displaying statistical information. The ethtool
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version 1.6 or later is required for this functionality.
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The latest release of ethtool can be found from
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http://ftp.kernel.org/pub/software/network/ethtool/
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Enabling Wake on LAN* (WoL)
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---------------------------
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WoL is provided through the ethtool* utility. For instructions on enabling
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WoL with ethtool, refer to the ethtool man page.
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WoL will be enabled on the system during the next shut down or reboot. For
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this driver version, in order to enable WoL, the e100 driver must be
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loaded when shutting down or rebooting the system.
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NAPI
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----
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NAPI (Rx polling mode) is supported in the e100 driver.
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See www.cyberus.ca/~hadi/usenix-paper.tgz for more information on NAPI.
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Multiple Interfaces on Same Ethernet Broadcast Network
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------------------------------------------------------
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Due to the default ARP behavior on Linux, it is not possible to have
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one system on two IP networks in the same Ethernet broadcast domain
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(non-partitioned switch) behave as expected. All Ethernet interfaces
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will respond to IP traffic for any IP address assigned to the system.
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This results in unbalanced receive traffic.
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If you have multiple interfaces in a server, either turn on ARP
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filtering by
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(1) entering: echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
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(this only works if your kernel's version is higher than 2.4.5), or
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(2) installing the interfaces in separate broadcast domains (either
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in different switches or in a switch partitioned to VLANs).
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Support
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=======
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For general information, go to the Intel support website at:
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http://support.intel.com
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or the Intel Wired Networking project hosted by Sourceforge at:
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http://sourceforge.net/projects/e1000
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If an issue is identified with the released source code on the supported
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kernel with a supported adapter, email the specific information related to the
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issue to e1000-devel@lists.sourceforge.net.
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License
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=======
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This software program is released under the terms of a license agreement
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between you ('Licensee') and Intel. Do not use or load this software or any
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associated materials (collectively, the 'Software') until you have carefully
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read the full terms and conditions of the file COPYING located in this software
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package. By loading or using the Software, you agree to the terms of this
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Agreement. If you do not agree with the terms of this Agreement, do not install
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or use the Software.
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* Other names and brands may be claimed as the property of others.
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