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virtio-net: vhost control virtqueue support

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This patch implements the control virtqueue support for vhost. This
requires virtio-net to figure out the datapath queue pairs and control
virtqueue via is_datapath and pass the number of those two types
of virtqueues to vhost_net_start()/vhost_net_stop().

Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20211020045600.16082-10-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jason Wang 2021-10-20 12:55:59 +08:00 • committed by Michael S. Tsirkin
parent 049eb15b5f
commit 22288fe5a3
3 changed files with 21 additions and 5 deletions
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2
hw/net/vhost_net.c
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@ -326,7 +326,7 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
VirtIONet *n = VIRTIO_NET(dev);
int nvhosts = data_queue_pairs + cvq;
struct vhost_net *net;
int r, e, i, last_index = data_qps * 2;
int r, e, i, last_index = data_queue_pairs * 2;
NetClientState *peer;
if (!cvq) {