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Based on kernel version 4.7.2. Page generated on 2016-08-22 22:47 EST.

1	Linux* Base Driver for the Intel(R) PRO/100 Family of Adapters
2	==============================================================
4	March 15, 2011
6	Contents
7	========
9	- In This Release
10	- Identifying Your Adapter
11	- Building and Installation
12	- Driver Configuration Parameters
13	- Additional Configurations
14	- Known Issues
15	- Support
18	In This Release
19	===============
21	This file describes the Linux* Base Driver for the Intel(R) PRO/100 Family of
22	Adapters. This driver includes support for Itanium(R)2-based systems.
24	For questions related to hardware requirements, refer to the documentation
25	supplied with your Intel PRO/100 adapter.
27	The following features are now available in supported kernels:
28	 - Native VLANs
29	 - Channel Bonding (teaming)
30	 - SNMP
32	Channel Bonding documentation can be found in the Linux kernel source:
33	/Documentation/networking/bonding.txt
36	Identifying Your Adapter
37	========================
39	For more information on how to identify your adapter, go to the Adapter &
40	Driver ID Guide at:
42	  http://support.intel.com/support/network/adapter/pro100/21397.htm
44	For the latest Intel network drivers for Linux, refer to the following
45	website. In the search field, enter your adapter name or type, or use the
46	networking link on the left to search for your adapter:
48	  http://downloadfinder.intel.com/scripts-df/support_intel.asp
50	Driver Configuration Parameters
51	===============================
53	The default value for each parameter is generally the recommended setting,
54	unless otherwise noted.
56	Rx Descriptors: Number of receive descriptors. A receive descriptor is a data
57	   structure that describes a receive buffer and its attributes to the network
58	   controller. The data in the descriptor is used by the controller to write
59	   data from the controller to host memory. In the 3.x.x driver the valid range
60	   for this parameter is 64-256. The default value is 64. This parameter can be
61	   changed using the command:
63	   ethtool -G eth? rx n, where n is the number of desired rx descriptors.
65	Tx Descriptors: Number of transmit descriptors. A transmit descriptor is a data
66	   structure that describes a transmit buffer and its attributes to the network
67	   controller. The data in the descriptor is used by the controller to read
68	   data from the host memory to the controller. In the 3.x.x driver the valid
69	   range for this parameter is 64-256. The default value is 64. This parameter
70	   can be changed using the command:
72	   ethtool -G eth? tx n, where n is the number of desired tx descriptors.
74	Speed/Duplex: The driver auto-negotiates the link speed and duplex settings by
75	   default. The ethtool utility can be used as follows to force speed/duplex.
77	   ethtool -s eth?  autoneg off speed {10|100} duplex {full|half}
79	   NOTE: setting the speed/duplex to incorrect values will cause the link to
80	   fail.
82	Event Log Message Level:  The driver uses the message level flag to log events
83	   to syslog. The message level can be set at driver load time. It can also be
84	   set using the command:
86	   ethtool -s eth? msglvl n
89	Additional Configurations
90	=========================
92	  Configuring the Driver on Different Distributions
93	  -------------------------------------------------
95	  Configuring a network driver to load properly when the system is started is
96	  distribution dependent. Typically, the configuration process involves adding
97	  an alias line to /etc/modprobe.d/*.conf as well as editing other system
98	  startup scripts and/or configuration files.  Many popular Linux
99	  distributions ship with tools to make these changes for you. To learn the
100	  proper way to configure a network device for your system, refer to your
101	  distribution documentation.  If during this process you are asked for the
102	  driver or module name, the name for the Linux Base Driver for the Intel
103	  PRO/100 Family of Adapters is e100.
105	  As an example, if you install the e100 driver for two PRO/100 adapters
106	  (eth0 and eth1), add the following to a configuration file in /etc/modprobe.d/
108	       alias eth0 e100
109	       alias eth1 e100
111	  Viewing Link Messages
112	  ---------------------
113	  In order to see link messages and other Intel driver information on your
114	  console, you must set the dmesg level up to six. This can be done by
115	  entering the following on the command line before loading the e100 driver:
117	       dmesg -n 8
119	  If you wish to see all messages issued by the driver, including debug
120	  messages, set the dmesg level to eight.
122	  NOTE: This setting is not saved across reboots.
125	  ethtool
126	  -------
128	  The driver utilizes the ethtool interface for driver configuration and
129	  diagnostics, as well as displaying statistical information.  The ethtool
130	  version 1.6 or later is required for this functionality.
132	  The latest release of ethtool can be found from
133	  http://ftp.kernel.org/pub/software/network/ethtool/
135	  Enabling Wake on LAN* (WoL)
136	  ---------------------------
137	  WoL is provided through the ethtool* utility.  For instructions on enabling
138	  WoL with ethtool, refer to the ethtool man page.
140	  WoL will be enabled on the system during the next shut down or reboot. For
141	  this driver version, in order to enable WoL, the e100 driver must be
142	  loaded when shutting down or rebooting the system.
144	  NAPI
145	  ----
147	  NAPI (Rx polling mode) is supported in the e100 driver.
149	  See www.cyberus.ca/~hadi/usenix-paper.tgz for more information on NAPI.
151	  Multiple Interfaces on Same Ethernet Broadcast Network
152	  ------------------------------------------------------
154	  Due to the default ARP behavior on Linux, it is not possible to have
155	  one system on two IP networks in the same Ethernet broadcast domain
156	  (non-partitioned switch) behave as expected. All Ethernet interfaces
157	  will respond to IP traffic for any IP address assigned to the system.
158	  This results in unbalanced receive traffic.
160	  If you have multiple interfaces in a server, either turn on ARP
161	  filtering by
163	  (1) entering: echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
164	      (this only works if your kernel's version is higher than 2.4.5), or
166	  (2) installing the interfaces in separate broadcast domains (either
167	      in different switches or in a switch partitioned to VLANs).
170	Support
171	=======
173	For general information, go to the Intel support website at:
175	    http://support.intel.com
177	    or the Intel Wired Networking project hosted by Sourceforge at:
179	    http://sourceforge.net/projects/e1000
181	If an issue is identified with the released source code on the supported
182	kernel with a supported adapter, email the specific information related to the
183	issue to e1000-devel@lists.sourceforge.net.
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