On Thu, Jan 26, 2023 at 12:46 PM Ruslan R. Laishev <zator@yandex.ru> wrote:
Hello!
 
Continue studying DPDK ...
 
I have a some nano-task : I'm need to send a packet/mbuf to queue of a device from separate worker .
 
Several workers (every worker run on own lcore) send/receive packets to/from queues of devices
worker #0 ------- port0/que0
                        - port1/que0
                        - portN/que0
worker #1 ------- port0/que1          
                        - port1/que1
                        - portN/que1
...
worker #N ------- port0/queN  
                        - port1/queN
                        - portN/queN

There is a yet another thread which want to send mbuf/packet to queue #0 (just for example) to every device

Hi,

I don't think you can inject packets into the device queues.

However, you can achieve the same, sending mbufs between the worker threads, using the provided ring functionality of DPDK - http://doc.dpdk.org/guides/prog_guide/ring_lib.html.
The worker threads will need to try to dequeue regularly for the shared ring(s).

Regards.