net/mlx4: fix Rx and Tx queue state

[ upstream commit 7cc3ea8934785226c6fe6d403ea5b31761d5f52f ]

The DPDK framework reports the queue state, which is stored in
dev->data->tx_queue_state and dev->data->rx_queue_state. The
state is maintained by the driver. Users may determine whether
a queue participates in packet forwarding based on the state.
Therefore, the driver needs to modify the queue state in time
according to the actual situation.

Fixes: 9ad9ff4 ("ethdev: add queue state in queried queue information")

Signed-off-by: Jie Hai <haijie1@huawei.com>
Acked-by: Ferruh Yigit <ferruh.yigit@amd.com>

drivers/net/mlx4/mlx4.c

@@ -292,6 +292,7 @@ mlx4_dev_start(struct rte_eth_dev *dev)
 {
 	struct mlx4_priv *priv = dev->data->dev_private;
 	struct rte_flow_error error;
+	uint16_t i;
 	int ret;
 
 	if (priv->started)
@@ -327,6 +328,12 @@ mlx4_dev_start(struct rte_eth_dev *dev)
 	dev->rx_pkt_burst = mlx4_rx_burst;
 	/* Enable datapath on secondary process. */
 	mlx4_mp_req_start_rxtx(dev);
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++)
+		dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;
+	for (i = 0; i < dev->data->nb_tx_queues; i++)
+		dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;
+
 	return 0;
 err:
 	mlx4_dev_stop(dev);
@@ -345,6 +352,7 @@ static int
 mlx4_dev_stop(struct rte_eth_dev *dev)
 {
 	struct mlx4_priv *priv = dev->data->dev_private;
+	uint16_t i;
 
 	if (!priv->started)
 		return 0;
@@ -359,6 +367,11 @@ mlx4_dev_stop(struct rte_eth_dev *dev)
 	mlx4_rxq_intr_disable(priv);
 	mlx4_rss_deinit(priv);
 
+	for (i = 0; i < dev->data->nb_rx_queues; i++)
+		dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
+	for (i = 0; i < dev->data->nb_tx_queues; i++)
+		dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
+
 	return 0;
 }