static int setup_vq()

in mlx5/net/mlx5_vnet.c [1141:1191]

• 41 lines of code
• 10 McCabe index (conditional complexity)

static int setup_vq(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *mvq)
{
	u16 idx = mvq->index;
	int err;

	if (!mvq->num_ent)
		return 0;

	if (mvq->initialized)
		return 0;

	err = cq_create(ndev, idx, mvq->num_ent);
	if (err)
		return err;

	err = qp_create(ndev, mvq, &mvq->fwqp);
	if (err)
		goto err_fwqp;

	err = qp_create(ndev, mvq, &mvq->vqqp);
	if (err)
		goto err_vqqp;

	err = connect_qps(ndev, mvq);
	if (err)
		goto err_connect;

	err = create_virtqueue(ndev, mvq);
	if (err)
		goto err_connect;

	if (mvq->ready) {
		err = modify_virtqueue(ndev, mvq, MLX5_VIRTIO_NET_Q_OBJECT_STATE_RDY);
		if (err) {
			mlx5_vdpa_warn(&ndev->mvdev, "failed to modify to ready vq idx %d(%d)\n",
				       idx, err);
			goto err_connect;
		}
	}

	mvq->initialized = true;
	return 0;

err_connect:
	qp_destroy(ndev, &mvq->vqqp);
err_vqqp:
	qp_destroy(ndev, &mvq->fwqp);
err_fwqp:
	cq_destroy(ndev, idx);
	return err;
}