[PATCH 19/36] net/mlx4: fix Rx and Tx queue state

[Jie Hai]

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: 9ad9ff476cac ("ethdev: add queue state in queried queue information")
Cc: sta...@dpdk.org

Signed-off-by: Jie Hai <haij...@huawei.com>
---
 drivers/net/mlx4/mlx4.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index a54016f4a235..1389b606ccb1 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/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;
 }
 
-- 
2.30.0