From: Xuan Zhuo <xuanz...@linux.alibaba.com> virtio-net, vhost-kernel, vhost-user implement queue reset. Queued packets in the corresponding queue pair are flushed or purged.
Signed-off-by: Xuan Zhuo <xuanz...@linux.alibaba.com> Signed-off-by: Kangjie Xu <kangjie...@linux.alibaba.com> --- hw/net/virtio-net.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 27b59c0ad6..e2989487ec 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -540,6 +540,24 @@ static RxFilterInfo *virtio_net_query_rxfilter(NetClientState *nc) return info; } +static void virtio_net_queue_reset(VirtIODevice *vdev, uint32_t queue_index) +{ + VirtIONet *n = VIRTIO_NET(vdev); + NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(queue_index)); + + if (!nc->peer) { + return; + } + + if (get_vhost_net(nc->peer) && + ((nc->peer->info->type == NET_CLIENT_DRIVER_TAP) || + (nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_USER))) { + vhost_net_virtqueue_stop(vdev, nc, queue_index); + } + + flush_or_purge_queued_packets(nc); +} + static void virtio_net_reset(VirtIODevice *vdev) { VirtIONet *n = VIRTIO_NET(vdev); @@ -3784,6 +3802,7 @@ static void virtio_net_class_init(ObjectClass *klass, void *data) vdc->set_features = virtio_net_set_features; vdc->bad_features = virtio_net_bad_features; vdc->reset = virtio_net_reset; + vdc->queue_reset = virtio_net_queue_reset; vdc->set_status = virtio_net_set_status; vdc->guest_notifier_mask = virtio_net_guest_notifier_mask; vdc->guest_notifier_pending = virtio_net_guest_notifier_pending; -- 2.32.0