On Thu, Aug 29, 2019 at 09:59:56AM +0200, Maxime Coquelin wrote:
> This patch implements the vDPA .dev_close() callback.
>
> Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
> ---
> drivers/net/virtio/virtio_vdpa.c | 52 ++++++++++++++++++++++++++++++++
> 1 file changed, 52 insertions(+)
>
> diff --git a/drivers/net/virtio/virtio_vdpa.c
> b/drivers/net/virtio/virtio_vdpa.c
> index 13b4dd07d..691844906 100644
> --- a/drivers/net/virtio/virtio_vdpa.c
> +++ b/drivers/net/virtio/virtio_vdpa.c
> @@ -436,6 +436,33 @@ virtio_vdpa_start(struct virtio_vdpa_device *dev)
> return ret;
> }
>
> +static void
> +virtio_vdpa_stop(struct virtio_vdpa_device *dev)
> +{
> + struct virtio_hw *hw = &dev->hw;
> + uint32_t i, nr_vring;
> + int vid = dev->vid;
> + struct rte_vhost_vring vr;
> + uint16_t last_used_idx, last_avail_idx;
> +
> + nr_vring = rte_vhost_get_vring_num(vid);
> +
> + vtpci_reset(hw);
> +
> + for (i = 0; i < nr_vring; i++) {
> + rte_vhost_get_vhost_vring(vid, i, &vr);
> +
> + last_used_idx = vr.used->idx;
> + last_avail_idx = vr.avail->idx;
This only works in split ring.
Regards,
Tiwei
> +
> + rte_vhost_set_vring_base(vid, i, last_avail_idx,
> + last_used_idx);
> + }
> +
> + rte_free(dev->vqs);
> + dev->vqs = NULL;
> +}
> +
