staging: fsl-dpaa2/eth: Update number of netdev queues

Currently, the netdevice is allocated with a default number of Rx/Tx
queues equal to CONFIG_NR_CPUS, meaning the maximum number of cores
supported by the current kernel. The actual number of queues is
reflected by the DPNI object attribute, so update the netdevice
configuration based on that.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c

@@ -2232,6 +2232,7 @@ static int netdev_init(struct net_device *net_dev)
 	struct device *dev = net_dev->dev.parent;
 	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
 	u8 bcast_addr[ETH_ALEN];
+	u8 num_queues;
 	int err;
 
 	net_dev->netdev_ops = &dpaa2_eth_ops;
@@ -2257,6 +2258,19 @@ static int netdev_init(struct net_device *net_dev)
 	net_dev->min_mtu = 68;
 	net_dev->max_mtu = DPAA2_ETH_MAX_MTU;
 
+	/* Set actual number of queues in the net device */
+	num_queues = dpaa2_eth_queue_count(priv);
+	err = netif_set_real_num_tx_queues(net_dev, num_queues);
+	if (err) {
+		dev_err(dev, "netif_set_real_num_tx_queues() failed\n");
+		return err;
+	}
+	err = netif_set_real_num_rx_queues(net_dev, num_queues);
+	if (err) {
+		dev_err(dev, "netif_set_real_num_rx_queues() failed\n");
+		return err;
+	}
+
 	/* Our .ndo_init will be called herein */
 	err = register_netdev(net_dev);
 	if (err < 0) {