Function virtqueue_txvq_reset_packed

dpdk/drivers/net/virtio/virtqueue.c:232–265

}

int
virtqueue_txvq_reset_packed(struct virtqueue *vq)
{
	int size = vq->vq_nentries;
	struct vq_desc_extra *dxp;
	uint16_t desc_idx;

	vq->vq_used_cons_idx = 0;
	vq->vq_desc_head_idx = 0;
	vq->vq_avail_idx = 0;
	vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1);
	vq->vq_free_cnt = vq->vq_nentries;

	vq->vq_packed.used_wrap_counter = 1;
	vq->vq_packed.cached_flags = VRING_PACKED_DESC_F_AVAIL;
	vq->vq_packed.event_flags_shadow = 0;

	memset(vq->mz->addr, 0, vq->mz->len);
	memset(vq->txq.hdr_mz->addr, 0, vq->txq.hdr_mz->len);

	for (desc_idx = 0; desc_idx < vq->vq_nentries; desc_idx++) {
		dxp = &vq->vq_descx[desc_idx];
		if (dxp->cookie != NULL) {
			rte_pktmbuf_free(dxp->cookie);
			dxp->cookie = NULL;
		}
	}

	virtqueue_txq_indirect_headers_init(vq);
	vring_desc_init_packed(vq, size);
	virtqueue_disable_intr(vq);

	return 0;
}


static void