[dpdk-dev] [PATCH] ethdev: fix queue start

[Qi Zhang]

Device must be started before start any queue.

Fixes: 0748be2cf9a2 ("ethdev: queue start and stop")
Cc: sta...@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
---
 lib/librte_ether/rte_ethdev.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 0590f0c10..7aa404fa5 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -732,6 +732,12 @@ rte_eth_dev_rx_queue_start(uint16_t port_id, uint16_t 
rx_queue_id)
        RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
 
        dev = &rte_eth_devices[port_id];
+       if (!dev->data->dev_started) {
+               RTE_PMD_DEBUG_TRACE(
+                   "port %d must be started before start any queue\n", 
port_id);
+               return -EINVAL;
+       }
+
        if (rx_queue_id >= dev->data->nb_rx_queues) {
                RTE_PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", rx_queue_id);
                return -EINVAL;
@@ -785,6 +791,12 @@ rte_eth_dev_tx_queue_start(uint16_t port_id, uint16_t 
tx_queue_id)
        RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
 
        dev = &rte_eth_devices[port_id];
+       if (!dev->data->dev_started) {
+               RTE_PMD_DEBUG_TRACE(
+                   "port %d must be started before start any queue\n", 
port_id);
+               return -EINVAL;
+       }
+
        if (tx_queue_id >= dev->data->nb_tx_queues) {
                RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", tx_queue_id);
                return -EINVAL;
-- 
2.13.6