Re: [dpdk-dev] [PATCH v2 4/4] net/mlx5: move locally used functions to static

[Yongseok Koh <yskoh@mellanox.com>]

> On May 2, 2019, at 8:01 AM, Dekel Peled <dekelp@mellanox.com> wrote:
> 
> Multiple functions were declared in header file mlx5_rxtx.h,
> inplemented in mlx5_rxq.c, and called only in mlx5_rxq.c.
> 
> This patch moves all these functions declarations into mlx5_rxq.c,
> as static functions.
> Some functions implementation was copied higher in the file to
> precede the functions calls.
> 
> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
> ---
Acked-by: Yongseok Koh <yskoh@mellanox.com>

> drivers/net/mlx5/mlx5_rxq.c  | 185 +++++++++++++++++++++----------------------
> drivers/net/mlx5/mlx5_rxtx.h |  16 ----
> 2 files changed, 92 insertions(+), 109 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
> index a547f2a..36fd0b3 100644
> --- a/drivers/net/mlx5/mlx5_rxq.c
> +++ b/drivers/net/mlx5/mlx5_rxq.c
> @@ -65,7 +65,7 @@
>  * @return
>  *   1 if supported, negative errno value if not.
>  */
> -inline int
> +static inline int
> mlx5_check_mprq_support(struct rte_eth_dev *dev)
> {
> 	struct mlx5_priv *priv = dev->data->dev_private;
> @@ -418,6 +418,33 @@
> }
> 
> /**
> + * Verify if the queue can be released.
> + *
> + * @param dev
> + *   Pointer to Ethernet device.
> + * @param idx
> + *   RX queue index.
> + *
> + * @return
> + *   1 if the queue can be released
> + *   0 if the queue can not be released, there are references to it.
> + *   Negative errno and rte_errno is set if queue doesn't exist.
> + */
> +static int
> +mlx5_rxq_releasable(struct rte_eth_dev *dev, uint16_t idx)
> +{
> +	struct mlx5_priv *priv = dev->data->dev_private;
> +	struct mlx5_rxq_ctrl *rxq_ctrl;
> +
> +	if (!(*priv->rxqs)[idx]) {
> +		rte_errno = EINVAL;
> +		return -rte_errno;
> +	}
> +	rxq_ctrl = container_of((*priv->rxqs)[idx], struct mlx5_rxq_ctrl, rxq);
> +	return (rte_atomic32_read(&rxq_ctrl->refcnt) == 1);
> +}
> +
> +/**
>  *
>  * @param dev
>  *   Pointer to Ethernet device structure.
> @@ -505,6 +532,63 @@
> }
> 
> /**
> + * Get an Rx queue Verbs object.
> + *
> + * @param dev
> + *   Pointer to Ethernet device.
> + * @param idx
> + *   Queue index in DPDK Rx queue array
> + *
> + * @return
> + *   The Verbs object if it exists.
> + */
> +static struct mlx5_rxq_ibv *
> +mlx5_rxq_ibv_get(struct rte_eth_dev *dev, uint16_t idx)
> +{
> +	struct mlx5_priv *priv = dev->data->dev_private;
> +	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)
> +		rte_atomic32_inc(&rxq_ctrl->ibv->refcnt);
> +	return rxq_ctrl->ibv;
> +}
> +
> +/**
> + * Release an Rx verbs queue object.
> + *
> + * @param rxq_ibv
> + *   Verbs Rx queue object.
> + *
> + * @return
> + *   1 while a reference on it exists, 0 when freed.
> + */
> +static int
> +mlx5_rxq_ibv_release(struct mlx5_rxq_ibv *rxq_ibv)
> +{
> +	assert(rxq_ibv);
> +	assert(rxq_ibv->wq);
> +	assert(rxq_ibv->cq);
> +	if (rte_atomic32_dec_and_test(&rxq_ibv->refcnt)) {
> +		rxq_free_elts(rxq_ibv->rxq_ctrl);
> +		claim_zero(mlx5_glue->destroy_wq(rxq_ibv->wq));
> +		claim_zero(mlx5_glue->destroy_cq(rxq_ibv->cq));
> +		if (rxq_ibv->channel)
> +			claim_zero(mlx5_glue->destroy_comp_channel
> +				   (rxq_ibv->channel));
> +		LIST_REMOVE(rxq_ibv, next);
> +		rte_free(rxq_ibv);
> +		return 0;
> +	}
> +	return 1;
> +}
> +
> +/**
>  * Allocate queue vector and fill epoll fd list for Rx interrupts.
>  *
>  * @param dev
> @@ -1032,64 +1116,6 @@ struct mlx5_rxq_ibv *
> }
> 
> /**
> - * Get an Rx queue Verbs object.
> - *
> - * @param dev
> - *   Pointer to Ethernet device.
> - * @param idx
> - *   Queue index in DPDK Rx queue array
> - *
> - * @return
> - *   The Verbs object if it exists.
> - */
> -struct mlx5_rxq_ibv *
> -mlx5_rxq_ibv_get(struct rte_eth_dev *dev, uint16_t idx)
> -{
> -	struct mlx5_priv *priv = dev->data->dev_private;
> -	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) {
> -		rte_atomic32_inc(&rxq_ctrl->ibv->refcnt);
> -	}
> -	return rxq_ctrl->ibv;
> -}
> -
> -/**
> - * Release an Rx verbs queue object.
> - *
> - * @param rxq_ibv
> - *   Verbs Rx queue object.
> - *
> - * @return
> - *   1 while a reference on it exists, 0 when freed.
> - */
> -int
> -mlx5_rxq_ibv_release(struct mlx5_rxq_ibv *rxq_ibv)
> -{
> -	assert(rxq_ibv);
> -	assert(rxq_ibv->wq);
> -	assert(rxq_ibv->cq);
> -	if (rte_atomic32_dec_and_test(&rxq_ibv->refcnt)) {
> -		rxq_free_elts(rxq_ibv->rxq_ctrl);
> -		claim_zero(mlx5_glue->destroy_wq(rxq_ibv->wq));
> -		claim_zero(mlx5_glue->destroy_cq(rxq_ibv->cq));
> -		if (rxq_ibv->channel)
> -			claim_zero(mlx5_glue->destroy_comp_channel
> -				   (rxq_ibv->channel));
> -		LIST_REMOVE(rxq_ibv, next);
> -		rte_free(rxq_ibv);
> -		return 0;
> -	}
> -	return 1;
> -}
> -
> -/**
>  * Verify the Verbs Rx queue list is empty
>  *
>  * @param dev
> @@ -1538,33 +1564,6 @@ struct mlx5_rxq_ctrl *
> }
> 
> /**
> - * Verify if the queue can be released.
> - *
> - * @param dev
> - *   Pointer to Ethernet device.
> - * @param idx
> - *   RX queue index.
> - *
> - * @return
> - *   1 if the queue can be released
> - *   0 if the queue can not be released, there are references to it.
> - *   Negative errno and rte_errno is set if queue doesn't exist.
> - */
> -int
> -mlx5_rxq_releasable(struct rte_eth_dev *dev, uint16_t idx)
> -{
> -	struct mlx5_priv *priv = dev->data->dev_private;
> -	struct mlx5_rxq_ctrl *rxq_ctrl;
> -
> -	if (!(*priv->rxqs)[idx]) {
> -		rte_errno = EINVAL;
> -		return -rte_errno;
> -	}
> -	rxq_ctrl = container_of((*priv->rxqs)[idx], struct mlx5_rxq_ctrl, rxq);
> -	return (rte_atomic32_read(&rxq_ctrl->refcnt) == 1);
> -}
> -
> -/**
>  * Verify the Rx Queue list is empty
>  *
>  * @param dev
> @@ -1601,7 +1600,7 @@ struct mlx5_rxq_ctrl *
>  * @return
>  *   The Verbs object initialised, NULL otherwise and rte_errno is set.
>  */
> -struct mlx5_ind_table_ibv *
> +static struct mlx5_ind_table_ibv *
> mlx5_ind_table_ibv_new(struct rte_eth_dev *dev, const uint16_t *queues,
> 		       uint32_t queues_n)
> {
> @@ -1665,7 +1664,7 @@ struct mlx5_ind_table_ibv *
>  * @return
>  *   An indirection table if found.
>  */
> -struct mlx5_ind_table_ibv *
> +static struct mlx5_ind_table_ibv *
> mlx5_ind_table_ibv_get(struct rte_eth_dev *dev, const uint16_t *queues,
> 		       uint32_t queues_n)
> {
> @@ -1700,7 +1699,7 @@ struct mlx5_ind_table_ibv *
>  * @return
>  *   1 while a reference on it exists, 0 when freed.
>  */
> -int
> +static int
> mlx5_ind_table_ibv_release(struct rte_eth_dev *dev,
> 			   struct mlx5_ind_table_ibv *ind_tbl)
> {
> @@ -1984,7 +1983,7 @@ struct mlx5_hrxq *
>  * @return
>  *   The Verbs object initialised, NULL otherwise and rte_errno is set.
>  */
> -struct mlx5_rxq_ibv *
> +static struct mlx5_rxq_ibv *
> mlx5_rxq_ibv_drop_new(struct rte_eth_dev *dev)
> {
> 	struct mlx5_priv *priv = dev->data->dev_private;
> @@ -2044,7 +2043,7 @@ struct mlx5_rxq_ibv *
>  * @return
>  *   The Verbs object initialised, NULL otherwise and rte_errno is set.
>  */
> -void
> +static void
> mlx5_rxq_ibv_drop_release(struct rte_eth_dev *dev)
> {
> 	struct mlx5_priv *priv = dev->data->dev_private;
> @@ -2067,7 +2066,7 @@ struct mlx5_rxq_ibv *
>  * @return
>  *   The Verbs object initialised, NULL otherwise and rte_errno is set.
>  */
> -struct mlx5_ind_table_ibv *
> +static struct mlx5_ind_table_ibv *
> mlx5_ind_table_ibv_drop_new(struct rte_eth_dev *dev)
> {
> 	struct mlx5_priv *priv = dev->data->dev_private;
> @@ -2110,7 +2109,7 @@ struct mlx5_ind_table_ibv *
>  * @param dev
>  *   Pointer to Ethernet device.
>  */
> -void
> +static void
> mlx5_ind_table_ibv_drop_release(struct rte_eth_dev *dev)
> {
> 	struct mlx5_priv *priv = dev->data->dev_private;
> diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
> index 1732e32..4512490 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.h
> +++ b/drivers/net/mlx5/mlx5_rxtx.h
> @@ -246,7 +246,6 @@ struct mlx5_txq_ctrl {
> 
> extern uint8_t rss_hash_default_key[];
> 
> -int mlx5_check_mprq_support(struct rte_eth_dev *dev);
> int mlx5_rxq_mprq_enabled(struct mlx5_rxq_data *rxq);
> int mlx5_mprq_enabled(struct rte_eth_dev *dev);
> int mlx5_mprq_free_mp(struct rte_eth_dev *dev);
> @@ -260,10 +259,6 @@ int mlx5_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
> int mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id);
> int mlx5_rx_intr_disable(struct rte_eth_dev *dev, uint16_t rx_queue_id);
> struct mlx5_rxq_ibv *mlx5_rxq_ibv_new(struct rte_eth_dev *dev, uint16_t idx);
> -struct mlx5_rxq_ibv *mlx5_rxq_ibv_get(struct rte_eth_dev *dev, uint16_t idx);
> -int mlx5_rxq_ibv_release(struct mlx5_rxq_ibv *rxq_ibv);
> -struct mlx5_rxq_ibv *mlx5_rxq_ibv_drop_new(struct rte_eth_dev *dev);
> -void mlx5_rxq_ibv_drop_release(struct rte_eth_dev *dev);
> int mlx5_rxq_ibv_verify(struct rte_eth_dev *dev);
> struct mlx5_rxq_ctrl *mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx,
> 				   uint16_t desc, unsigned int socket,
> @@ -271,20 +266,9 @@ struct mlx5_rxq_ctrl *mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx,
> 				   struct rte_mempool *mp);
> struct mlx5_rxq_ctrl *mlx5_rxq_get(struct rte_eth_dev *dev, uint16_t idx);
> int mlx5_rxq_release(struct rte_eth_dev *dev, uint16_t idx);
> -int mlx5_rxq_releasable(struct rte_eth_dev *dev, uint16_t idx);
> int mlx5_rxq_verify(struct rte_eth_dev *dev);
> int rxq_alloc_elts(struct mlx5_rxq_ctrl *rxq_ctrl);
> -struct mlx5_ind_table_ibv *mlx5_ind_table_ibv_new(struct rte_eth_dev *dev,
> -						  const uint16_t *queues,
> -						  uint32_t queues_n);
> -struct mlx5_ind_table_ibv *mlx5_ind_table_ibv_get(struct rte_eth_dev *dev,
> -						  const uint16_t *queues,
> -						  uint32_t queues_n);
> -int mlx5_ind_table_ibv_release(struct rte_eth_dev *dev,
> -			       struct mlx5_ind_table_ibv *ind_tbl);
> int mlx5_ind_table_ibv_verify(struct rte_eth_dev *dev);
> -struct mlx5_ind_table_ibv *mlx5_ind_table_ibv_drop_new(struct rte_eth_dev *dev);
> -void mlx5_ind_table_ibv_drop_release(struct rte_eth_dev *dev);
> struct mlx5_hrxq *mlx5_hrxq_new(struct rte_eth_dev *dev,
> 				const uint8_t *rss_key, uint32_t rss_key_len,
> 				uint64_t hash_fields,
> -- 
> 1.8.3.1
>