[dpdk-dev] [PATCH 02/14] net/virtio: don't call virtio_disable_intr() for packed queues

[Jens Freimann <jfreimann@redhat.com>]

When VIRTIO_F_PACKED_RING is set, don't call virtio_disable_intr().
This function accesses data structures which are not
available when packed virtqueues are enabled.

Signed-off-by: Jens Freimann <jfreimann@redhat.com>
---
 drivers/net/virtio/virtio_ethdev.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 825b6c303..76879d87f 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -324,12 +324,11 @@ virtio_init_vring(struct virtqueue *vq)
 		vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1);
 
 		vring_desc_init(vr->desc, size);
+		/*
+		 * Disable device(host) interrupting guest
+		 */
+		virtqueue_disable_intr(vq);
 	}
-
-	/*
-	 * Disable device(host) interrupting guest
-	 */
-	virtqueue_disable_intr(vq);
 }
 
 static int
@@ -747,7 +746,8 @@ virtio_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
 	struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
 	struct virtqueue *vq = rxvq->vq;
 
-	virtqueue_disable_intr(vq);
+	if (!vtpci_packed_queue(vq->hw))
+		virtqueue_disable_intr(vq);
 	return 0;
 }
 
-- 
2.14.3