[PATCH 17/36] net/memif: 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/memif/rte_eth_memif.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/memif/rte_eth_memif.c 
b/drivers/net/memif/rte_eth_memif.c
index 6a8ff5b4eb65..636c8a4af345 100644
--- a/drivers/net/memif/rte_eth_memif.c
+++ b/drivers/net/memif/rte_eth_memif.c
@@ -1358,6 +1358,7 @@ memif_dev_start(struct rte_eth_dev *dev)
 {
        struct pmd_internals *pmd = dev->data->dev_private;
        int ret = 0;
+       uint16_t i;
 
        switch (pmd->role) {
        case MEMIF_ROLE_CLIENT:
@@ -1372,13 +1373,28 @@ memif_dev_start(struct rte_eth_dev *dev)
                break;
        }
 
+       if (ret == 0) {
+               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 ret;
 }
 
 static int
 memif_dev_stop(struct rte_eth_dev *dev)
 {
+       uint16_t i;
+
        memif_disconnect(dev);
+
+       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