em/igb multiqueue support

[Eugene Grosbein]

> Thanks! I'm using 7.4.... I will try it with 8.2
> 
> And, how the load sharing occurs between the queues?

The card uses more than one interrupt vector while notifying CPUs on incoming traffic,
allowing operating system driver to bind distinct NIC interrupts to distinct CPUs.

The card implements Microsoft RSS:
http://download.microsoft.com/download/5/d/6/5d6eaf2b-7ddf-476b-93dc-7cf0072878e6/ndis_rss.doc