[Bug,1169,vhost] VDPA example is aborting when VM starts
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Commit Message
https://bugs.dpdk.org/show_bug.cgi?id=1169
Bug ID: 1169
Summary: [vhost]VDPA example is aborting when VM starts
Product: DPDK
Version: 23.03
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: vhost/virtio
Assignee: dev@dpdk.org
Reporter: ssimma@nvidia.com
Target Milestone: ---
We believe that issue was caused by the following change:
4b02c2673757 ("vhost: annotate async accesses")
return RTE_VHOST_MSG_RESULT_OK;
}
@@ -2168,6 +2168,7 @@ vhost_user_set_vring_enable(struct virtio_net **pdev,
int main_fd __rte_unused)
{
struct virtio_net *dev = *pdev;
+ struct vhost_virtqueue *vq;
bool enable = !!ctx->msg.payload.state.num;
int index = (int)ctx->msg.payload.state.index;
@@ -2175,15 +2176,18 @@ vhost_user_set_vring_enable(struct virtio_net **pdev,
"set queue enable: %d to qp idx: %d\n",
enable, index);
- if (enable && dev->virtqueue[index]->async) {
- if (dev->virtqueue[index]->async->pkts_inflight_n) {
+ vq = dev->virtqueue[index];
+ /* vhost_user_lock_all_queue_pairs locked all qps */
+ vq_assert_lock(dev, vq); # this
assert fired
+ if (enable && vq->async) {
+ if (vq->async->pkts_inflight_n) {
VHOST_LOG_CONFIG(dev->ifname, ERR,
"failed to enable vring. Inflight packets must
be completed first\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
}
- dev->virtqueue[index]->enabled = enable;
+ vq->enabled = enable;