On Thu, Oct 05, 2017 at 02:49:42PM +0200, Nelio Laranjeiro wrote:
[...]
> +struct mlx5_rxq_ibv*
> +mlx5_priv_rxq_ibv_get(struct priv *priv, uint16_t idx)
> +{
> + struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx];
> + struct mlx5_rxq_ctrl *rxq_ctrl;
> +
> + if (idx >= priv->rxqs_n)
> + return NULL;
> + if (!rxq_data)
> + return NULL;
> + rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
> + if (rxq_ctrl->ibv) {
> + priv_mr_get(priv, rxq_data->mp);
One rxq_ibv has one mr as one rxq has one mp. As long as rxq_ibv exist, the mr
can't be released. So, it looks unnecessary to increase refcnt of the mr here.
> + rte_atomic32_inc(&rxq_ctrl->ibv->refcnt);
> + DEBUG("%p: Verbs Rx queue %p: refcnt %d", (void *)priv,
> + (void *)rxq_ctrl->ibv,
> + rte_atomic32_read(&rxq_ctrl->ibv->refcnt));
> + }
> + return rxq_ctrl->ibv;
> +}
> +
> +/**
> + * Release an Rx verbs queue object.
> + *
> + * @param priv
> + * Pointer to private structure.
> + * @param rxq_ibv
> + * Verbs Rx queue object.
> + *
> + * @return
> + * 0 on success, errno value on failure.
> + */
> +int
> +mlx5_priv_rxq_ibv_release(struct priv *priv, struct mlx5_rxq_ibv *rxq_ibv)
> +{
> + int ret;
> +
> + assert(rxq_ibv);
> + assert(rxq_ibv->wq);
> + assert(rxq_ibv->cq);
> + assert(rxq_ibv->mr);
> + ret = priv_mr_release(priv, rxq_ibv->mr);
Like I mentioned above, this can be moved inside the following destruction part.
As current code is logically flawless,
Acked-by: Yongseok Koh <ys...@mellanox.com>
Thanks
