This is the latest release of the igb driver for Linux, which supports kernel versions up through 2.6.32.

This release provides:

- Made changes in driver, in igb_write_mc_addr_list(), in order to synch with the netdev struct changes made in the kernel. 
- Moved next_to_use variable into it's own cacheline in the ring structure for performance reasons.
- Fixed problem where driver fails to pass traffic with max_vfs on kernel with CONFIG_PCI_MCONF disabled.
- Added code to check for link speeds  of 5.0Gt/s.
- Modified ethtool test to pass the link check when the PHY is powered down when the interface is down.
- Updated legacy igb_set_itr function to better handle newer q_vector model.