C++ (Cpp) vhost_net_start Exemples

Exemple #1

Fichier : virtio-net.c Projet : EgoIncarnate/qemu-rr

static void virtio_net_set_status(struct VirtIODevice *vdev, uint8_t status)
{
    VirtIONet *n = to_virtio_net(vdev);
    if (!n->nic->nc.peer) {
        return;
    }
    if (n->nic->nc.peer->info->type != NET_CLIENT_TYPE_TAP) {
        return;
    }

    if (!tap_get_vhost_net(n->nic->nc.peer)) {
        return;
    }
    if (!!n->vhost_started == ((status & VIRTIO_CONFIG_S_DRIVER_OK) &&
                               (n->status & VIRTIO_NET_S_LINK_UP) &&
                               n->vm_running)) {
        return;
    }
    if (!n->vhost_started) {
        int r = vhost_net_start(tap_get_vhost_net(n->nic->nc.peer), &n->vdev);
        if (r < 0) {
            fprintf(stderr, "unable to start vhost net: %d: "
                    "falling back on userspace virtio\n", -r);
        } else {
            n->vhost_started = 1;
        }
    } else {
        vhost_net_stop(tap_get_vhost_net(n->nic->nc.peer), &n->vdev);
        n->vhost_started = 0;
    }
}

Exemple #2

Fichier : virtio-net.c Projet : B-Rich/serialice

static void virtio_net_vhost_status(VirtIONet *n, uint8_t status)
{
    if (!n->nic->nc.peer) {
        return;
    }
    if (n->nic->nc.peer->info->type != NET_CLIENT_TYPE_TAP) {
        return;
    }

    if (!tap_get_vhost_net(n->nic->nc.peer)) {
        return;
    }
    if (!!n->vhost_started == virtio_net_started(n, status) &&
                              !n->nic->nc.peer->link_down) {
        return;
    }
    if (!n->vhost_started) {
        int r;
        if (!vhost_net_query(tap_get_vhost_net(n->nic->nc.peer), &n->vdev)) {
            return;
        }
        r = vhost_net_start(tap_get_vhost_net(n->nic->nc.peer), &n->vdev);
        if (r < 0) {
            error_report("unable to start vhost net: %d: "
                         "falling back on userspace virtio", -r);
        } else {
            n->vhost_started = 1;
        }
    } else {
        vhost_net_stop(tap_get_vhost_net(n->nic->nc.peer), &n->vdev);
        n->vhost_started = 0;
    }
}