net/ena: fix SIGFPE with 0 Rx queue

When the number of rx queues is 0 (what can be when application does
not receive) failed with SIGFPE.
It happens when the application is also requesting ETH_MQ_RX_RSS_FLAG
in the rte_dev->data->dev_conf.rxmode.mq_mode.
Fixed adding zero rx queues check.

Signed-off-by: Daria Kolistratova <daria.kolistratova@intel.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 1870edf..89080a9 100644 (file)
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1052,7 +1052,7 @@ static int ena_start(struct rte_eth_dev *dev)
                return rc;
 
        if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode &
-           ETH_MQ_RX_RSS_FLAG) {
+           ETH_MQ_RX_RSS_FLAG && adapter->rte_dev->data->nb_rx_queues > 0) {
                rc = ena_rss_init_default(adapter);
                if (rc)
                        return rc;