[dpdk-dev] [Bug 178] l2fwd application does not work with option '-q'

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=178

            Bug ID: 178
           Summary: l2fwd application does not work with option '-q'
           Product: DPDK
           Version: 18.11
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: examples
          Assignee: dev at dpdk.org
          Reporter: vipin.varghese at intel.com
  Target Milestone: ---

As per 

usage description: '-q NQ: number of queue (=ports) per lcore (default is 1)'

documentation description: URL
https://doc.dpdk.org/guides/sample_app_ug/l2_forward_real_virtual.html 

To run the application in linuxapp environment with 4 lcores, 16 ports and 8 RX
queues per lcore and MAC address updating enabled, issue the command: $
./build/l2fwd -l 0-3 -n 4 -- -q 8 -p ffff

issue: I am only able to fetch 1 RX queue per port

Checking the code base I find:

1) lcore are mapped to lcores by
               /* get the lcore_id for this port */
                while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
                       lcore_queue_conf[rx_lcore_id].n_rx_port ==
                       l2fwd_rx_queue_per_lcore) {
                        rx_lcore_id++;
                        if (rx_lcore_id >= RTE_MAX_LCORE)
                                rte_exit(EXIT_FAILURE, "Not enough cores\n");
                }


2) but RX queue is setup it is done for 1 rx queue per port

                ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
                                             rte_eth_dev_socket_id(portid),
                                             &rxq_conf,
                                             l2fwd_pktmbuf_pool);


what is that I am missing to make this work for 1 port with 4 rx queues?

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