net/virtio: disable LSC interrupt if MSIX not enabled

[dpdk.git] / drivers / net / virtio / virtio_ethdev.c

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 4dc03b9..66770fc 100644 (file)
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1338,11 +1338,11 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
                rte_eth_copy_pci_info(eth_dev, pci_dev);
        }
 
-       /* If host does not support status then disable LSC */
-       if (!vtpci_with_feature(hw, VIRTIO_NET_F_STATUS))
-               eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
-       else
+       /* If host does not support both status and MSI-X then disable LSC */
+       if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS) && hw->use_msix)
                eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
+       else
+               eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
 
        rx_func_get(eth_dev);