Hi All.

When using the openflow group feature with dpdk ports how are the packet refcnt 
handled so that packets are not deleted before all the ports have forwarded the 
packet?
i can’t see a reference to any refcnt anywhere to manage this. 

This becomes a little more exciting (segfaults attempting to free already freed 
buffer) if i mod the netdev dpdk to allow multi segment packets in & out.

Cheers
Dave.
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