ethdev: check queue state before starting or stopping

[dpdk.git] / lib / librte_ether / rte_ethdev.c

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index fcc9e0f..83704bb 100644 (file)
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -778,6 +778,13 @@ rte_eth_dev_rx_queue_start(uint8_t port_id, uint16_t rx_queue_id)
 
        FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_start, -ENOTSUP);
 
+       if (dev->data->rx_queue_state[rx_queue_id] != RTE_ETH_QUEUE_STATE_STOPPED) {
+               PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8
+                       " already started\n",
+                       rx_queue_id, port_id);
+               return 0;
+       }
+
        return dev->dev_ops->rx_queue_start(dev, rx_queue_id);
 
 }
@@ -801,6 +808,13 @@ rte_eth_dev_rx_queue_stop(uint8_t port_id, uint16_t rx_queue_id)
 
        FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_stop, -ENOTSUP);
 
+       if (dev->data->rx_queue_state[rx_queue_id] == RTE_ETH_QUEUE_STATE_STOPPED) {
+               PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8
+                       " already stopped\n",
+                       rx_queue_id, port_id);
+               return 0;
+       }
+
        return dev->dev_ops->rx_queue_stop(dev, rx_queue_id);
 
 }
@@ -824,6 +838,13 @@ rte_eth_dev_tx_queue_start(uint8_t port_id, uint16_t tx_queue_id)
 
        FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_queue_start, -ENOTSUP);
 
+       if (dev->data->tx_queue_state[tx_queue_id] != RTE_ETH_QUEUE_STATE_STOPPED) {
+               PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8
+                       " already started\n",
+                       tx_queue_id, port_id);
+               return 0;
+       }
+
        return dev->dev_ops->tx_queue_start(dev, tx_queue_id);
 
 }
@@ -847,6 +868,13 @@ rte_eth_dev_tx_queue_stop(uint8_t port_id, uint16_t tx_queue_id)
 
        FUNC_PTR_OR_ERR_RET(*dev->dev_ops->tx_queue_stop, -ENOTSUP);
 
+       if (dev->data->tx_queue_state[tx_queue_id] == RTE_ETH_QUEUE_STATE_STOPPED) {
+               PMD_DEBUG_TRACE("Queue %" PRIu16" of device with port_id=%" PRIu8
+                       " already stopped\n",
+                       tx_queue_id, port_id);
+               return 0;
+       }
+
        return dev->dev_ops->tx_queue_stop(dev, tx_queue_id);
 
 }