mirror of https://gitee.com/openkylin/linux.git
116 lines
3.2 KiB
Plaintext
116 lines
3.2 KiB
Plaintext
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Linux Base Driver for the Intel(R) Ethernet Controller XL710 Family
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===================================================================
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Intel i40e Linux driver.
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Copyright(c) 2013 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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- Performance Tuning
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- Known Issues
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- Support
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Identifying Your Adapter
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========================
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The driver in this release is compatible with the Intel Ethernet
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Controller XL710 Family.
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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/sb/CS-012904.htm
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Enabling the driver
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===================
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The driver is enabled via the standard kernel configuration system,
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using the make command:
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Make oldconfig/silentoldconfig/menuconfig/etc.
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The driver is located in the menu structure at:
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-> Device Drivers
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-> Network device support (NETDEVICES [=y])
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-> Ethernet driver support
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-> Intel devices
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-> Intel(R) Ethernet Controller XL710 Family
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Additional Configurations
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=========================
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Generic Receive Offload (GRO)
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-----------------------------
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The driver supports the in-kernel software implementation of GRO. GRO has
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shown that by coalescing Rx traffic into larger chunks of data, CPU
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utilization can be significantly reduced when under large Rx load. GRO is
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an evolution of the previously-used LRO interface. GRO is able to coalesce
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other protocols besides TCP. It's also safe to use with configurations that
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are problematic for LRO, namely bridging and iSCSI.
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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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ethtool version is required for this functionality.
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The latest release of ethtool can be found from
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https://www.kernel.org/pub/software/network/ethtool
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Data Center Bridging (DCB)
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--------------------------
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DCB configuration is not currently supported.
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FCoE
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----
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Fiber Channel over Ethernet (FCoE) hardware offload is not currently
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supported.
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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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Performance Tuning
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==================
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An excellent article on performance tuning can be found at:
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http://www.redhat.com/promo/summit/2008/downloads/pdf/Thursday/Mark_Wagner.pdf
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Known Issues
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============
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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://e1000.sourceforge.net
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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.sourceforge.net and copy
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netdev@vger.kernel.org.
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