vhost-net-user: add stubs for when no virtio-net device is present

hw/net/vhost_net.c needs functions that are declared in net/vhost-user.c: the
vhost-user code is always compiled into QEMU, only the constructor
net_init_vhost_user is unreachable.  Also, net/vhost-user.c needs functions
declared in hw/virtio/vhost-stub.c even if no virtio device exists.

Break this dependency.  First, add a minimal version of net/vhost-user.c,
with no functionality and no dependency on vhost code.  Second, #ifdef out
the calls back to net/vhost-user.c from hw/net/vhost_net.c.

While at it, this patch fixes the CONFIG_VHOST_NET_USE*D* typo.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <1543851204-41186-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1550165756-21617-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-02-14 18:35:49 +01:00 committed by Michael S. Tsirkin
parent 7b28c61524
commit 56f41de737
5 changed files with 32 additions and 3 deletions

View file

@ -193,6 +193,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
}
/* Set sane init value. Override when guest acks. */
#ifdef CONFIG_VHOST_NET_USER
if (net->nc->info->type == NET_CLIENT_DRIVER_VHOST_USER) {
features = vhost_user_get_acked_features(net->nc);
if (~net->dev.features & features) {
@ -202,6 +203,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
goto fail;
}
}
#endif
vhost_net_ack_features(net, features);
@ -413,10 +415,12 @@ VHostNetState *get_vhost_net(NetClientState *nc)
case NET_CLIENT_DRIVER_TAP:
vhost_net = tap_get_vhost_net(nc);
break;
#ifdef CONFIG_VHOST_NET_USER
case NET_CLIENT_DRIVER_VHOST_USER:
vhost_net = vhost_user_get_vhost_net(nc);
assert(vhost_net);
break;
#endif
default:
break;
}