1 Linux* Base Driver for Intel(R) Ethernet Network Connection
2 ===========================================================
4 Intel Gigabit Linux driver.
5 Copyright(c) 1999 - 2013 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.
39 Additional Configurations
40 =========================
44 Jumbo Frames support is enabled by changing the MTU to a value larger than
45 the default of 1500. Use the ip command to increase the MTU size.
48 ip link set dev eth<x> mtu 9000
50 This setting is not saved across reboots.
54 - The maximum MTU setting for Jumbo Frames is 9216. This value coincides
55 with the maximum Jumbo Frames size of 9234 bytes.
57 - Using Jumbo frames at 10 or 100 Mbps is not supported and may result in
58 poor performance or loss of link.
62 The driver utilizes the ethtool interface for driver configuration and
63 diagnostics, as well as displaying statistical information. The latest
64 version of ethtool can be found at:
66 http://ftp.kernel.org/pub/software/network/ethtool/
68 Enabling Wake on LAN* (WoL)
69 ---------------------------
70 WoL is configured through the ethtool* utility.
72 For instructions on enabling WoL with ethtool, refer to the ethtool man page.
74 WoL will be enabled on the system during the next shut down or reboot.
75 For this driver version, in order to enable WoL, the igb driver must be
76 loaded when shutting down or rebooting the system.
78 Wake On LAN is only supported on port A of multi-port adapters.
80 Wake On LAN is not supported for the Intel(R) Gigabit VT Quad Port Server
85 In this mode, a separate MSI-X vector is allocated for each queue and one
86 for "other" interrupts such as link status change and errors. All
87 interrupts are throttled via interrupt moderation. Interrupt moderation
88 must be used to avoid interrupt storms while the driver is processing one
89 interrupt. The moderation value should be at least as large as the expected
90 time for the driver to process an interrupt. Multiqueue is off by default.
92 REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
93 found, the system will fallback to MSI or to Legacy interrupts.
95 MAC and VLAN anti-spoofing feature
96 ----------------------------------
97 When a malicious driver attempts to send a spoofed packet, it is dropped by
98 the hardware and not transmitted. An interrupt is sent to the PF driver
99 notifying it of the spoof attempt.
101 When a spoofed packet is detected the PF driver will send the following
102 message to the system log (displayed by the "dmesg" command):
104 Spoof event(s) detected on VF(n)
106 Where n=the VF that attempted to do the spoofing.
108 Setting MAC Address, VLAN and Rate Limit Using IProute2 Tool
109 ------------------------------------------------------------
110 You can set a MAC address of a Virtual Function (VF), a default VLAN and the
111 rate limit using the IProute2 tool. Download the latest version of the
112 iproute2 tool from Sourceforge if your version does not have all the
113 features you require.
119 For general information, go to the Intel support website at:
121 www.intel.com/support/
123 or the Intel Wired Networking project hosted by Sourceforge at:
125 http://sourceforge.net/projects/e1000
127 If an issue is identified with the released source code on the supported
128 kernel with a supported adapter, email the specific information related
129 to the issue to e1000-devel@lists.sf.net