On Sun, Jun 07, 2020 at 10:11:49AM -0400, Michael S. Tsirkin wrote:
> A straight-forward conversion.
>
> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> ---
> drivers/vhost/vsock.c | 30 ++++++++++++++++++------------
> 1 file changed, 18 insertions(+), 12 deletions(-)
The changes for vsock part LGTM:
Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
I also did some tests with vhost-vsock (tools/testing/vsock/vsock_test
and iperf-vsock), so for vsock:
Tested-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
Thanks,
Stefano
>
> diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
> index a483cec31d5c..61c6d3dd2ae3 100644
> --- a/drivers/vhost/vsock.c
> +++ b/drivers/vhost/vsock.c
> @@ -103,7 +103,8 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
> unsigned out, in;
> size_t nbytes;
> size_t iov_len, payload_len;
> - int head;
> + struct vhost_buf buf;
> + int ret;
>
> spin_lock_bh(&vsock->send_pkt_list_lock);
> if (list_empty(&vsock->send_pkt_list)) {
> @@ -117,16 +118,17 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
> list_del_init(&pkt->list);
> spin_unlock_bh(&vsock->send_pkt_list_lock);
>
> - head = vhost_get_vq_desc(vq, vq->iov, ARRAY_SIZE(vq->iov),
> - &out, &in, NULL, NULL);
> - if (head < 0) {
> + ret = vhost_get_avail_buf(vq, &buf,
> + vq->iov, ARRAY_SIZE(vq->iov),
> + &out, &in, NULL, NULL);
> + if (ret < 0) {
> spin_lock_bh(&vsock->send_pkt_list_lock);
> list_add(&pkt->list, &vsock->send_pkt_list);
> spin_unlock_bh(&vsock->send_pkt_list_lock);
> break;
> }
>
> - if (head == vq->num) {
> + if (!ret) {
> spin_lock_bh(&vsock->send_pkt_list_lock);
> list_add(&pkt->list, &vsock->send_pkt_list);
> spin_unlock_bh(&vsock->send_pkt_list_lock);
> @@ -186,7 +188,8 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
> */
> virtio_transport_deliver_tap_pkt(pkt);
>
> - vhost_add_used(vq, head, sizeof(pkt->hdr) + payload_len);
> + buf.in_len = sizeof(pkt->hdr) + payload_len;
> + vhost_put_used_buf(vq, &buf);
> added = true;
>
> pkt->off += payload_len;
> @@ -440,7 +443,8 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
> struct vhost_vsock *vsock = container_of(vq->dev, struct vhost_vsock,
> dev);
> struct virtio_vsock_pkt *pkt;
> - int head, pkts = 0, total_len = 0;
> + int ret, pkts = 0, total_len = 0;
> + struct vhost_buf buf;
> unsigned int out, in;
> bool added = false;
>
> @@ -461,12 +465,13 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
> goto no_more_replies;
> }
>
> - head = vhost_get_vq_desc(vq, vq->iov, ARRAY_SIZE(vq->iov),
> - &out, &in, NULL, NULL);
> - if (head < 0)
> + ret = vhost_get_avail_buf(vq, &buf,
> + vq->iov, ARRAY_SIZE(vq->iov),
> + &out, &in, NULL, NULL);
> + if (ret < 0)
> break;
>
> - if (head == vq->num) {
> + if (!ret) {
> if (unlikely(vhost_enable_notify(&vsock->dev, vq))) {
> vhost_disable_notify(&vsock->dev, vq);
> continue;
> @@ -494,7 +499,8 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
> virtio_transport_free_pkt(pkt);
>
> len += sizeof(pkt->hdr);
> - vhost_add_used(vq, head, len);
> + buf.in_len = len;
> + vhost_put_used_buf(vq, &buf);
> total_len += len;
> added = true;
> } while(likely(!vhost_exceeds_weight(vq, ++pkts, total_len)));
> --
> MST
>
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