Function virtqueue_rxvq_flush_split

dpdk/drivers/net/virtio/virtqueue.c:90–136

Flush the elements in the used ring. */

/* Flush the elements in the used ring. */
static void
virtqueue_rxvq_flush_split(struct virtqueue *vq)
{
	struct virtnet_rx *rxq = &vq->rxq;
	struct virtio_hw *hw = vq->hw;
	struct vring_used_elem *uep;
	struct vq_desc_extra *dxp;
	uint16_t used_idx, desc_idx;
	uint16_t nb_used, i;

	nb_used = virtqueue_nused(vq);

	for (i = 0; i < nb_used; i++) {
		used_idx = vq->vq_used_cons_idx & (vq->vq_nentries - 1);
		uep = &vq->vq_split.ring.used->ring[used_idx];
		if (hw->use_vec_rx) {
			desc_idx = used_idx;
			rte_pktmbuf_free(vq->rxq.sw_ring[desc_idx]);
			vq->vq_free_cnt++;
		} else if (hw->use_inorder_rx) {
			desc_idx = (uint16_t)uep->id;
			dxp = &vq->vq_descx[desc_idx];
			if (dxp->cookie != NULL) {
				rte_pktmbuf_free(dxp->cookie);
				dxp->cookie = NULL;
			}
			vq_ring_free_inorder(vq, desc_idx, 1);
		} else {
			desc_idx = (uint16_t)uep->id;
			dxp = &vq->vq_descx[desc_idx];
			if (dxp->cookie != NULL) {
				rte_pktmbuf_free(dxp->cookie);
				dxp->cookie = NULL;
			}
			vq_ring_free_chain(vq, desc_idx);
		}
		vq->vq_used_cons_idx++;
	}

	if (hw->use_vec_rx) {
		while (vq->vq_free_cnt >= RTE_VIRTIO_VPMD_RX_REARM_THRESH) {
			virtio_rxq_rearm_vec(rxq);
			if (virtqueue_kick_prepare(vq))
				virtqueue_notify(vq);
		}
	}
}

/* Flush the elements in the used ring. */
void