1
Linux* Base Driver for Intel(R) Network Connection
2
==================================================
4
Intel Gigabit Linux driver.
5
Copyright(c) 1999 - 2010 Intel Corporation.
10
- Identifying Your Adapter
11
- Additional Configurations
14
Identifying Your Adapter
15
========================
17
This driver supports all 82575, 82576 and 82580-based Intel (R) gigabit network
20
For specific information on how to identify your adapter, go to the Adapter &
23
http://support.intel.com/support/go/network/adapter/idguide.htm
25
Command Line Parameters
26
=======================
28
The default value for each parameter is generally the recommended setting,
29
unless otherwise noted.
36
This parameter adds support for SR-IOV. It causes the driver to spawn up to
37
max_vfs worth of virtual function.
40
Additional Configurations
41
=========================
45
Jumbo Frames support is enabled by changing the MTU to a value larger than
46
the default of 1500. Use the ifconfig command to increase the MTU size.
49
ifconfig eth<x> mtu 9000 up
51
This setting is not saved across reboots.
55
- The maximum MTU setting for Jumbo Frames is 9216. This value coincides
56
with the maximum Jumbo Frames size of 9234 bytes.
58
- Using Jumbo Frames at 10 or 100 Mbps may result in poor performance or
63
The driver utilizes the ethtool interface for driver configuration and
64
diagnostics, as well as displaying statistical information. The latest
65
version of ethtool can be found at:
67
http://ftp.kernel.org/pub/software/network/ethtool/
69
Enabling Wake on LAN* (WoL)
70
---------------------------
71
WoL is configured through the ethtool* utility.
73
For instructions on enabling WoL with ethtool, refer to the ethtool man page.
75
WoL will be enabled on the system during the next shut down or reboot.
76
For this driver version, in order to enable WoL, the igb driver must be
77
loaded when shutting down or rebooting the system.
79
Wake On LAN is only supported on port A of multi-port adapters.
81
Wake On LAN is not supported for the Intel(R) Gigabit VT Quad Port Server
86
In this mode, a separate MSI-X vector is allocated for each queue and one
87
for "other" interrupts such as link status change and errors. All
88
interrupts are throttled via interrupt moderation. Interrupt moderation
89
must be used to avoid interrupt storms while the driver is processing one
90
interrupt. The moderation value should be at least as large as the expected
91
time for the driver to process an interrupt. Multiqueue is off by default.
93
REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
94
found, the system will fallback to MSI or to Legacy interrupts.
96
MAC and VLAN anti-spoofing feature
97
----------------------------------
98
When a malicious driver attempts to send a spoofed packet, it is dropped by
99
the hardware and not transmitted. An interrupt is sent to the PF driver
100
notifying it of the spoof attempt.
102
When a spoofed packet is detected the PF driver will send the following
103
message to the system log (displayed by the "dmesg" command):
105
Spoof event(s) detected on VF(n)
107
Where n=the VF that attempted to do the spoofing.
112
For general information, go to the Intel support website at:
114
www.intel.com/support/
116
or the Intel Wired Networking project hosted by Sourceforge at:
118
http://sourceforge.net/projects/e1000
120
If an issue is identified with the released source code on the supported
121
kernel with a supported adapter, email the specific information related
122
to the issue to e1000-devel@lists.sf.net