[PATCH 25/36] net/null: 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/null/rte_eth_null.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c
index 31081af79752..d742bc415c8c 100644
--- a/drivers/net/null/rte_eth_null.c
+++ b/drivers/net/null/rte_eth_null.c
@@ -192,21 +192,36 @@ eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
 static int
 eth_dev_start(struct rte_eth_dev *dev)
 {
+       uint16_t i;
+
        if (dev == NULL)
                return -EINVAL;
 
        dev->data->dev_link.link_status = RTE_ETH_LINK_UP;
+
+       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;
 }
 
 static int
 eth_dev_stop(struct rte_eth_dev *dev)
 {
+       uint16_t i;
+
        if (dev == NULL)
                return 0;
 
        dev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
 
+       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