net/qede: fix to reject config with no Rx queue

The qede firmware expects minimum one RX queue to be created, otherwise
it results in firmware exception. So a check is added to prevent that.

Fixes: ec94dbc57362 ("qede: add base driver")
Cc: stable@dpdk.org
Signed-off-by: Harish Patil <harish.patil@cavium.com>

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index cc473d6..0128cec 100644 (file)
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -1233,6 +1233,14 @@ static int qede_dev_configure(struct rte_eth_dev *eth_dev)
                }
        }
 
+       /* We need to have min 1 RX queue.There is no min check in
+        * rte_eth_dev_configure(), so we are checking it here.
+        */
+       if (eth_dev->data->nb_rx_queues == 0) {
+               DP_ERR(edev, "Minimum one RX queue is required\n");
+               return -EINVAL;
+       }
+
        /* Sanity checks and throw warnings */
        if (rxmode->enable_scatter)
                eth_dev->data->scattered_rx = 1;