vlan filtering

[Tom Judge]

Jack Vogel wrote:
> I was just working on a bug in the Oplin driver that had me look
> a bit more at VLAN code than I had previously.
> 
> FreeBSD has apparently never used the hardware vlan filtering
> that our hardware can do, is there a systemic reason for this,
> or has the code lagged in its use of the system?
> 
> I at least don't understand how the driver is supposed to get
> the vlan id to set in the filter, am I just unenlightened? :)
> 
> If this is doable I can add code into em as well as ixgbe.
> 
> Jack

This isn't really directly related but could be important for some 
users.  If you where to use this would the card handle Q in Q properly 
with the filter on or would there have to be some form of administrative 
option to turn the hardware filter on/off?

Tom