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Linux* Base Driver for the Intel(R) Ethernet 10 Gigabit PCI Express Family of
February 12, 2013


- Important Note
- In This Release
- Identifying Your Adapter
- Building and Installation
- Command Line Parameters
- Additional Configurations
- Performance Tuning
- Known Issues/Troubleshooting
- Support


WARNING:  The ixgbe driver compiles by default with the LRO (Large Receive
Offload) feature enabled.  This option offers the lowest CPU utilization for
receives, but is completely incompatible with *routing/ip forwarding* and
*bridging*.  If enabling ip forwarding or bridging is a requirement, it is
necessary to disable LRO using compile time options as noted in the LRO
section later in this document.  The result of not disabling LRO when combined
with ip forwarding or bridging can be low throughput or even a kernel panic.

In This Release

This file describes the ixgbe Linux* Base Driver for the 10 Gigabit PCI 
Express Family of Adapters.  This driver supports the 2.6.x and 3.x kernels, 
and includes support for any Linux supported system, including Itanium(R)2, 
x86_64, i686, and PPC.

This driver is only supported as a loadable module at this time.  Intel is
not supplying patches against the kernel source to allow for static linking
of the driver.  A version of the driver may already be included by your 
distribution and/or the kernel.org kernel. For questions related to hardware 
requirements, refer to the documentation supplied with your 10 Gigabit PCI
Express adapter.  All hardware requirements listed apply to use with Linux.

The following features are now available in supported kernels:
 - Native VLANs
 - Channel Bonding (teaming)
 - Generic Receive Offload
 - Data Center Bridging

Channel Bonding documentation can be found in the Linux kernel source:

Instructions on updating ethtool can be found in the section "Additional
Configurations" later in this document.

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