SMPable version of EM driver

[Vladimir Ivanov]

rmkml wrote:
> Hi Vladimir,
> very thank for your work on intel em driver !
> just commented line 772 and added 773 :
> 771:            /* Send a copy of the frame to the BPF listener */
> 772:            /* ETHER_BPF_MTAP(ifp, m_head); */
> 773:            BPF_MTAP(ifp, m_head);
> what is ETHER_BPF_MTAP() ?

look at RELENG_6.
They've moved vlan promisc hack from driver level into ethersubr.
Briefly: we've to disable hardware vlan tagging if we want to tcpdump or 
bridge trunked port.

> Best Regards
> Rmkml

Regards,
Vladimir