[dpdk-dev] [PATCH v2 6/9] net/virtio: unbind intr/eventfd when stop device

[Jianfeng Tan <jianfeng.tan@intel.com>]

When virtio devices get stopped, we just tell the kernel to unbind
the mapping between interrupts and eventfds.

Note: it behaves differently from other NICs which close eventfds,
free struct. In virtio, we do those things when close device in
following patch.

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
---
 drivers/net/virtio/virtio_ethdev.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 082346b..0754ba0 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1686,11 +1686,13 @@ 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);
 
 	memset(&link, 0, sizeof(link));
 	virtio_dev_atomic_write_link_status(dev, &link);
-- 
2.7.4