7c158399c2
Add the documentation for the anti-spoofing feature in the HW. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
122 lines
3.7 KiB
Text
122 lines
3.7 KiB
Text
Linux* Base Driver for Intel(R) Network Connection
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==================================================
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Intel Gigabit Linux driver.
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Copyright(c) 1999 - 2010 Intel Corporation.
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Contents
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========
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- Identifying Your Adapter
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- Additional Configurations
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- Support
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Identifying Your Adapter
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========================
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This driver supports all 82575, 82576 and 82580-based Intel (R) gigabit network
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connections.
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For specific 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/go/network/adapter/idguide.htm
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Command Line 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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max_vfs
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-------
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Valid Range: 0-7
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Default Value: 0
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This parameter adds support for SR-IOV. It causes the driver to spawn up to
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max_vfs worth of virtual function.
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Additional Configurations
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=========================
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Jumbo Frames
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------------
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Jumbo Frames support is enabled by changing the MTU to a value larger than
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the default of 1500. Use the ifconfig command to increase the MTU size.
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For example:
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ifconfig eth<x> mtu 9000 up
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This setting is not saved across reboots.
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Notes:
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- The maximum MTU setting for Jumbo Frames is 9216. This value coincides
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with the maximum Jumbo Frames size of 9234 bytes.
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- Using Jumbo Frames at 10 or 100 Mbps may result in poor performance or
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loss of link.
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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 latest
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version of ethtool can be found at:
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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 configured through the ethtool* utility.
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For instructions on enabling 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.
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For this driver version, in order to enable WoL, the igb driver must be
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loaded when shutting down or rebooting the system.
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Wake On LAN is only supported on port A of multi-port adapters.
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Wake On LAN is not supported for the Intel(R) Gigabit VT Quad Port Server
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Adapter.
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Multiqueue
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----------
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In this mode, a separate MSI-X vector is allocated for each queue and one
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for "other" interrupts such as link status change and errors. All
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interrupts are throttled via interrupt moderation. Interrupt moderation
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must be used to avoid interrupt storms while the driver is processing one
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interrupt. The moderation value should be at least as large as the expected
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time for the driver to process an interrupt. Multiqueue is off by default.
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REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
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found, the system will fallback to MSI or to Legacy interrupts.
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MAC and VLAN anti-spoofing feature
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----------------------------------
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When a malicious driver attempts to send a spoofed packet, it is dropped by
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the hardware and not transmitted. An interrupt is sent to the PF driver
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notifying it of the spoof attempt.
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When a spoofed packet is detected the PF driver will send the following
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message to the system log (displayed by the "dmesg" command):
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Spoof event(s) detected on VF(n)
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Where n=the VF that attempted to do the spoofing.
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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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www.intel.com/support/
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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
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to the issue to e1000-devel@lists.sf.net
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