netmap question

[Marko Markovic]

Hello Luigi,
first of all i have to say you have done great work. I had some fun with netmap but i have a question:
How can we fill in the transmit ring buffers of a network card from different CPUs/threads? Or to clarify i am able to fill the send ring on the thread that does the poll,  but what if i want to fill the packets on a different thread and send on another? Any help is welcome, and if you have a simple example that would be great.
Thank you in advance.
Regards,Marko