netdev - Re: [PATCH net-next v3 1/2] net/mlx5e: refactor indr setup block

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Date:   Mon, 23 Mar 2020 15:44:10 +0200
From:   Vlad Buslov <vladbu@...lanox.com>
To:     wenxu@...oud.cn
Cc:     saeedm@...lanox.com, paulb@...lanox.com, vladbu@...lanox.com,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3 1/2] net/mlx5e: refactor indr setup block


On Sat 21 Mar 2020 at 06:39, wenxu@...oud.cn wrote:
> From: wenxu <wenxu@...oud.cn>
>
> Refactor indr setup block for support ft indr setup in the
> next patch

Description of why this refactoring is needed and details of the change
would be nice.

>
> Signed-off-by: wenxu <wenxu@...oud.cn>
> ---
> v3: no change
>
>  drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 42 ++++++++++++------------
>  1 file changed, 21 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
> index a33d151..057f5f9 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
> @@ -694,9 +694,9 @@ static void mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv)
>  static int
>  mlx5e_rep_indr_offload(struct net_device *netdev,
>  		       struct flow_cls_offload *flower,
> -		       struct mlx5e_rep_indr_block_priv *indr_priv)
> +		       struct mlx5e_rep_indr_block_priv *indr_priv,
> +		       unsigned long flags)
>  {
> -	unsigned long flags = MLX5_TC_FLAG(EGRESS) | MLX5_TC_FLAG(ESW_OFFLOAD);
>  	struct mlx5e_priv *priv = netdev_priv(indr_priv->rpriv->netdev);
>  	int err = 0;
>  
> @@ -717,20 +717,22 @@ static void mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv)
>  	return err;
>  }
>  
> -static int mlx5e_rep_indr_setup_block_cb(enum tc_setup_type type,
> -					 void *type_data, void *indr_priv)
> +static int mlx5e_rep_indr_setup_tc_cb(enum tc_setup_type type,
> +				      void *type_data, void *indr_priv)
>  {
> +	unsigned long flags = MLX5_TC_FLAG(EGRESS) | MLX5_TC_FLAG(ESW_OFFLOAD);
>  	struct mlx5e_rep_indr_block_priv *priv = indr_priv;
>  
>  	switch (type) {
>  	case TC_SETUP_CLSFLOWER:
> -		return mlx5e_rep_indr_offload(priv->netdev, type_data, priv);
> +		return mlx5e_rep_indr_offload(priv->netdev, type_data, priv,
> +					      flags);
>  	default:
>  		return -EOPNOTSUPP;
>  	}
>  }
>  
> -static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
> +static void mlx5e_rep_indr_block_unbind(void *cb_priv)
>  {
>  	struct mlx5e_rep_indr_block_priv *indr_priv = cb_priv;
>  
> @@ -741,9 +743,10 @@ static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
>  static LIST_HEAD(mlx5e_block_cb_list);
>  
>  static int
> -mlx5e_rep_indr_setup_tc_block(struct net_device *netdev,
> -			      struct mlx5e_rep_priv *rpriv,
> -			      struct flow_block_offload *f)
> +mlx5e_rep_indr_setup_block(struct net_device *netdev,
> +			   struct mlx5e_rep_priv *rpriv,
> +			   struct flow_block_offload *f,
> +			   flow_setup_cb_t *setup_cb)
>  {
>  	struct mlx5e_rep_indr_block_priv *indr_priv;
>  	struct flow_block_cb *block_cb;
> @@ -769,9 +772,8 @@ static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
>  		list_add(&indr_priv->list,
>  			 &rpriv->uplink_priv.tc_indr_block_priv_list);
>  
> -		block_cb = flow_block_cb_alloc(mlx5e_rep_indr_setup_block_cb,
> -					       indr_priv, indr_priv,
> -					       mlx5e_rep_indr_tc_block_unbind);
> +		block_cb = flow_block_cb_alloc(setup_cb, indr_priv, indr_priv,
> +					       mlx5e_rep_indr_block_unbind);
>  		if (IS_ERR(block_cb)) {
>  			list_del(&indr_priv->list);
>  			kfree(indr_priv);
> @@ -786,9 +788,7 @@ static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
>  		if (!indr_priv)
>  			return -ENOENT;
>  
> -		block_cb = flow_block_cb_lookup(f->block,
> -						mlx5e_rep_indr_setup_block_cb,
> -						indr_priv);
> +		block_cb = flow_block_cb_lookup(f->block, setup_cb, indr_priv);
>  		if (!block_cb)
>  			return -ENOENT;
>  
> @@ -802,13 +802,13 @@ static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
>  }
>  
>  static
> -int mlx5e_rep_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv,
> -			       enum tc_setup_type type, void *type_data)
> +int mlx5e_rep_indr_setup_cb(struct net_device *netdev, void *cb_priv,
> +			    enum tc_setup_type type, void *type_data)
>  {
>  	switch (type) {
>  	case TC_SETUP_BLOCK:
> -		return mlx5e_rep_indr_setup_tc_block(netdev, cb_priv,
> -						      type_data);
> +		return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data,
> +						  mlx5e_rep_indr_setup_tc_cb);
>  	default:
>  		return -EOPNOTSUPP;
>  	}
> @@ -820,7 +820,7 @@ static int mlx5e_rep_indr_register_block(struct mlx5e_rep_priv *rpriv,
>  	int err;
>  
>  	err = __flow_indr_block_cb_register(netdev, rpriv,
> -					    mlx5e_rep_indr_setup_tc_cb,
> +					    mlx5e_rep_indr_setup_cb,
>  					    rpriv);
>  	if (err) {
>  		struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
> @@ -834,7 +834,7 @@ static int mlx5e_rep_indr_register_block(struct mlx5e_rep_priv *rpriv,
>  static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
>  					    struct net_device *netdev)
>  {
> -	__flow_indr_block_cb_unregister(netdev, mlx5e_rep_indr_setup_tc_cb,
> +	__flow_indr_block_cb_unregister(netdev, mlx5e_rep_indr_setup_cb,
>  					rpriv);
>  }