[dpdk-dev] [PATCH 4/7] vhost: translate iovas at vectors fill time
Maxime Coquelin
maxime.coquelin at redhat.com
Thu Jun 21 16:45:39 CEST 2018
On 06/08/2018 12:39 PM, Maxime Coquelin wrote:
> @@ -584,7 +578,8 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id,
> vq->last_avail_idx + num_buffers);
>
> if (copy_mbuf_to_desc(dev, vq, pkts[pkt_idx],
> - buf_vec, num_buffers) < 0) {
> + buf_vec, num_buffers,
> + nr_vec) < 0) {
FYI,there is a bug here. num_buffers and nr_vec must be swapped:
static __rte_always_inline int
copy_mbuf_to_desc(struct virtio_net *dev, struct vhost_virtqueue *vq,
struct rte_mbuf *m, struct buf_vector *buf_vec,
uint16_t num_buffers)
It can be reproduce with Kernel driver with mrg OFF and with offloads
ON.
Maxime
> vq->shadow_used_idx -= num_buffers;
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