pfil question

[Petri Helenius]

Andre Oppermann wrote:

>BTW: You may be better off using pfil_hooks instead of netgraph for your
>tool.  You'll save one m_copym and m_freem for each packet.
>
>  
>
Is pfil zero copy or one copy by default? If the driver supports it, 
does a packet get directly DMA'd in mbufs and passed over the pf which 
then drops the packet if applicable?

Also, did the locking work for network stack in 5.3 make pf fully 
parallel so packets arriving can be processed by multiple CPU's? Do 
these need to be coming in from multiple interfaces or can even packets 
from one interface be distributed among multiple CPU's?

Pete