Function async_iter_initialize

dpdk/lib/vhost/virtio_net.c:1059–1074

}

static __rte_always_inline int
async_iter_initialize(struct virtio_net *dev, struct vhost_async *async)
{
	struct vhost_iov_iter *iter;

	if (unlikely(async->iovec_idx >= VHOST_MAX_ASYNC_VEC)) {
		VHOST_LOG_DATA(dev->ifname, ERR, "no more async iovec available\n");
		return -1;
	}

	iter = async->iov_iter + async->iter_idx;
	iter->iov = async->iovec + async->iovec_idx;
	iter->nr_segs = 0;

	return 0;
}

static __rte_always_inline int
async_iter_add_iovec(struct virtio_net *dev, struct vhost_async *async,