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Commit 5e95af5f authored by Raed Salem's avatar Raed Salem Committed by Leon Romanovsky
Browse files

IB/mlx5: Add flow counters read support 



Implements the flow counters read wrapper.

Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarRaed Salem <raeds@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 3b3233fb

drivers/infiniband/hw/mlx5/main.c

+15 −0
Original line number Diff line number Diff line
@@ -3035,6 +3035,19 @@ static void set_underlay_qp(struct mlx5_ib_dev *dev, 
	}

}



static int read_flow_counters(struct ib_device *ibdev,

			      struct mlx5_read_counters_attr *read_attr)

{

	struct mlx5_fc *fc = read_attr->hw_cntrs_hndl;

	struct mlx5_ib_dev *dev = to_mdev(ibdev);



	return mlx5_fc_query(dev->mdev, fc,

			     &read_attr->out[IB_COUNTER_PACKETS],

			     &read_attr->out[IB_COUNTER_BYTES]);

}



/* flow counters currently expose two counters packets and bytes */

#define FLOW_COUNTERS_NUM 2

static int counters_set_description(struct ib_counters *counters,

				    enum mlx5_ib_counters_type counters_type,

				    struct mlx5_ib_flow_counters_desc *desc_data,
@@ -3049,6 +3062,8 @@ static int counters_set_description(struct ib_counters *counters, 


	/* init the fields for the object */

	mcounters->type = counters_type;

	mcounters->read_counters = read_flow_counters;

	mcounters->counters_num = FLOW_COUNTERS_NUM;

	mcounters->ncounters = ncounters;

	/* each counter entry have both description and index pair */

	for (i = 0; i < ncounters; i++) {

drivers/infiniband/hw/mlx5/mlx5_ib.h

+12 −1
Original line number Diff line number Diff line
@@ -814,6 +814,12 @@ struct mlx5_memic { 
	DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES);

};



struct mlx5_read_counters_attr {

	struct mlx5_fc *hw_cntrs_hndl;

	u64 *out;

	u32 flags;

};



enum mlx5_ib_counters_type {

	MLX5_IB_COUNTERS_FLOW,

};
@@ -821,7 +827,12 @@ enum mlx5_ib_counters_type { 
struct mlx5_ib_mcounters {

	struct ib_counters ibcntrs;

	enum mlx5_ib_counters_type type;

	void *hw_cntrs_hndl;

	/* number of counters supported for this counters type */

	u32 counters_num;

	struct mlx5_fc *hw_cntrs_hndl;

	/* read function for this counters type */

	int (*read_counters)(struct ib_device *ibdev,

			     struct mlx5_read_counters_attr *read_attr);

	/* max index set as part of create_flow */

	u32 cntrs_max_index;

	/* number of counters data entries (<description,index> pair) */