For the subject, what about:
vhost: fix invalid zmbuf buffer id
On 02/24, Marvin Liu wrote:
>zc mbufs should record available buffer id when doing dequeue zcopy.
>There's no guarantee that local queue avail index equal to buffer index.
s/equal to/is equal to
>
>Fixes: d1eafb532268 ("vhost: add packed ring zcopy batch and single dequeue")
>Cc: sta...@dpdk.org
>
>Signed-off-by: Marvin Liu <yong....@intel.com>
>Reported-by: Yinan Wang <yinan.w...@intel.com>
>
>diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
>index 37c47c7dc..210415904 100644
>--- a/lib/librte_vhost/virtio_net.c
>+++ b/lib/librte_vhost/virtio_net.c
>@@ -2004,7 +2004,7 @@ virtio_dev_tx_batch_packed_zmbuf(struct virtio_net *dev,
>
> vhost_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE) {
> zmbufs[i]->mbuf = pkts[i];
>- zmbufs[i]->desc_idx = avail_idx + i;
>+ zmbufs[i]->desc_idx = ids[i];
> zmbufs[i]->desc_count = 1;
> }
>
>@@ -2045,7 +2045,7 @@ virtio_dev_tx_single_packed_zmbuf(struct virtio_net *dev,
> return -1;
> }
> zmbuf->mbuf = *pkts;
>- zmbuf->desc_idx = vq->last_avail_idx;
>+ zmbuf->desc_idx = buf_id;
> zmbuf->desc_count = desc_count;
>
> rte_mbuf_refcnt_update(*pkts, 1);
>--
>2.17.1
>
Apart from above,
Reviewed-by: Xiaolong Ye <xiaolong...@intel.com>
