[dpdk-dev] [PATCH 02/17] net/virtio: don't call virtio_disable_intr() for packed queues
Jens Freimann
jfreimann at redhat.com
Fri Mar 16 16:21:05 CET 2018
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 at 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 ce4f53d..19536eb 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -313,12 +313,11 @@ struct rte_virtio_xstats_name_off {
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
@@ -736,7 +735,8 @@ struct rte_virtio_xstats_name_off {
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;
}
--
1.8.3.1
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