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authorChangchun Ouyang <changchun.ouyang@intel.com>2015-09-23 12:20:01 +0800
committerMichael S. Tsirkin <mst@redhat.com>2015-09-24 16:27:53 +0300
commit7263a0ad7899994b719ebed736a1119cc2e08110 (patch)
tree6e832134bdf7c95b2a8ba0e9f03b47c0f7a216b5 /hw/net/virtio-net.c
parentb931bfbf042983f311b3b09894d8030b2755a638 (diff)
vhost-user: add a new message to disable/enable a specific virt queue.
Add a new message, VHOST_USER_SET_VRING_ENABLE, to enable or disable a specific virt queue, which is similar to attach/detach queue for tap device. virtio driver on guest doesn't have to use max virt queue pair, it could enable any number of virt queue ranging from 1 to max virt queue pair. Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Tested-by: Marcel Apfelbaum <marcel@redhat.com>
Diffstat (limited to 'hw/net/virtio-net.c')
-rw-r--r--hw/net/virtio-net.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 2775e6a03e..d388c5571d 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -406,6 +406,10 @@ static int peer_attach(VirtIONet *n, int index)
return 0;
}
+ if (nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_VHOST_USER) {
+ vhost_set_vring_enable(nc->peer, 1);
+ }
+
if (nc->peer->info->type != NET_CLIENT_OPTIONS_KIND_TAP) {
return 0;
}
@@ -421,6 +425,10 @@ static int peer_detach(VirtIONet *n, int index)
return 0;
}
+ if (nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_VHOST_USER) {
+ vhost_set_vring_enable(nc->peer, 0);
+ }
+
if (nc->peer->info->type != NET_CLIENT_OPTIONS_KIND_TAP) {
return 0;
}