[dpdk-dev] [PATCH 3/5] net/virtio: remove Rx queue interrupts when stopping

[Jianfeng Tan]

This patch disables Rx queue interrupts, cleans the datapath event
and queue/vector map when stopping the device.

Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com>
---
 drivers/net/virtio/virtio_ethdev.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 886524c..cc5750e 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1484,7 +1484,6 @@ virtio_dev_start(struct rte_eth_dev *dev)
 			PMD_DRV_LOG(ERR, "link status not supported by host");
 			return -ENOTSUP;
 		}
-
 	}
 
 	if (dev->data->dev_conf.intr_conf.rxq) {
@@ -1611,11 +1610,17 @@ static void
 virtio_dev_stop(struct rte_eth_dev *dev)
 {
 	struct rte_eth_link link;
+	struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
+	struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
 
 	PMD_INIT_LOG(DEBUG, "stop");
 
-	if (dev->data->dev_conf.intr_conf.lsc)
-		rte_intr_disable(&dev->pci_dev->intr_handle);
+	if (intr_conf->lsc || intr_conf->rxq) {
+		rte_intr_disable(intr_handle);
+		rte_intr_efd_disable(intr_handle);
+		rte_free(intr_handle->intr_vec);
+		intr_handle->intr_vec = NULL;
+	}
 
 	memset(&link, 0, sizeof(link));
 	virtio_dev_atomic_write_link_status(dev, &link);
-- 
2.7.4