examples/l3fwd-power: disable interrupts by default

Currently, interrupts are enabled in telemetry and empty poll modes, but
they are not used. Switch to disabling interrupts by default, and only
enable interrupts for modes that require them.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Yinan Wang <yinan.wang@intel.com>

diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index 9db94ce..2cc5d7b 100644 (file)
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -256,10 +256,7 @@ static struct rte_eth_conf port_conf = {
        },
        .txmode = {
                .mq_mode = ETH_MQ_TX_NONE,
-       },
-       .intr_conf = {
-               .rxq = 1,
-       },
+       }
 };
 
 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
@@ -2270,6 +2267,8 @@ main(int argc, char **argv)
        /* initialize all ports */
        RTE_ETH_FOREACH_DEV(portid) {
                struct rte_eth_conf local_port_conf = port_conf;
+               /* not all app modes need interrupts */
+               bool need_intr = app_mode == APP_MODE_LEGACY;
 
                /* skip ports that are not enabled */
                if ((enabled_port_mask & (1 << portid)) == 0) {
@@ -2303,7 +2302,10 @@ main(int argc, char **argv)
                        nb_rx_queue, (unsigned)n_tx_queue );
                /* If number of Rx queue is 0, no need to enable Rx interrupt */
                if (nb_rx_queue == 0)
-                       local_port_conf.intr_conf.rxq = 0;
+                       need_intr = false;
+
+               if (need_intr)
+                       local_port_conf.intr_conf.rxq = 1;
 
                ret = rte_eth_dev_info_get(portid, &dev_info);
                if (ret != 0)