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Commit 90b3e38d authored by Rana Shahout's avatar Rana Shahout Committed by David S. Miller
Browse files

net/mlx5_core: Modify CQ moderation parameters 



Introduce mlx5_core_modify_cq_moderation() to be used by the netdev, to
set hardware coalescing.

Signed-off-by: default avatarRana Shahout <ranas@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4c916a79

drivers/net/ethernet/mellanox/mlx5/core/cq.c

+18 −0
Original line number Diff line number Diff line
@@ -219,6 +219,24 @@ int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, 
}

EXPORT_SYMBOL(mlx5_core_modify_cq);



int mlx5_core_modify_cq_moderation(struct mlx5_core_dev *dev,

				   struct mlx5_core_cq *cq,

				   u16 cq_period,

				   u16 cq_max_count)

{

	struct mlx5_modify_cq_mbox_in in;



	memset(&in, 0, sizeof(in));



	in.cqn              = cpu_to_be32(cq->cqn);

	in.ctx.cq_period    = cpu_to_be16(cq_period);

	in.ctx.cq_max_count = cpu_to_be16(cq_max_count);

	in.field_select     = cpu_to_be32(MLX5_CQ_MODIFY_PERIOD |

					  MLX5_CQ_MODIFY_COUNT);



	return mlx5_core_modify_cq(dev, cq, &in, sizeof(in));

}



int mlx5_init_cq_table(struct mlx5_core_dev *dev)

{

	struct mlx5_cq_table *table = &dev->priv.cq_table;

include/linux/mlx5/cq.h

+3 −0
Original line number Diff line number Diff line
@@ -169,6 +169,9 @@ int mlx5_core_query_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, 
		       struct mlx5_query_cq_mbox_out *out);

int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,

			struct mlx5_modify_cq_mbox_in *in, int in_sz);

int mlx5_core_modify_cq_moderation(struct mlx5_core_dev *dev,

				   struct mlx5_core_cq *cq, u16 cq_period,

				   u16 cq_max_count);

int mlx5_debug_cq_add(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq);

void mlx5_debug_cq_remove(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq);