On Mon, Jun 08, 2020 at 12:17:46PM +0200, Stefano Garzarella wrote:
> On Sun, Jun 07, 2020 at 10:11:49AM -0400, Michael S. Tsirkin wrote:
> > A straight-forward conversion.
> >
> > Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
> > ---
> > drivers/vhost/vsock.c | 30 ++++++++++++++++++------------
> > 1 file changed, 18 insertions(+), 12 deletions(-)
>
> The changes for vsock part LGTM:
>
> Reviewed-by: Stefano Garzarella <sgarz...@redhat.com>
>
>
> I also did some tests with vhost-vsock (tools/testing/vsock/vsock_test
> and iperf-vsock), so for vsock:
>
> Tested-by: Stefano Garzarella <sgarz...@redhat.com>
>
> Thanks,
> Stefano
Re-testing v6 would be very much appreciated.
> >
> > 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
> >
