[dpdk-dev] [PATCH v2] net/virtio: fix fail to configure rxq interrupt

[Jiayu Hu <jiayu.hu@intel.com>]

When use rte_eth_dev_configure() to enable rx queue interrupt for virtio
devices, virtio_init_device() isn't called to set up the interrupt
environment, which causes rx queue interrupt setup failed. This patch is
to fix this issue.

Fixes: 26b683b4f7d0 ("net/virtio: setup Rx queue interrupts")
Cc: stable@dpdk.org

Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>
---
changes in v2:
- fix QEMU crash issue.

 drivers/net/virtio/virtio_ethdev.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 00a3122..e320811 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1659,9 +1659,16 @@ virtio_dev_configure(struct rte_eth_dev *dev)
 {
 	const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 	struct virtio_hw *hw = dev->data->dev_private;
+	int ret;
 
 	PMD_INIT_LOG(DEBUG, "configure");
 
+	if (dev->data->dev_conf.intr_conf.rxq) {
+		ret = virtio_init_device(dev, hw->req_guest_features);
+		if (ret < 0)
+			return ret;
+	}
+
 	/* Virtio does L4 checksum but not L3! */
 	if (rxmode->hw_ip_checksum) {
 		PMD_DRV_LOG(NOTICE,
-- 
2.7.4