Commit bfb49549 authored by Yuval Avnery's avatar Yuval Avnery Committed by Saeed Mahameed
Browse files

net/mlx5: Generalize IRQ interface to work with irq_table 



IRQ interface should operate within the irq_table context.
It should be independent of any EQ data structure.

The interface that will be exposed:
init/clenup, create/destroy, attach/detach

Signed-off-by: default avatarYuval Avnery <yuvalav@mellanox.com>
Reviewed-by: default avatarParav Pandit <parav@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent e1706e62

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

+29 −9
Original line number Diff line number Diff line
@@ -143,16 +143,22 @@ static struct mlx5_irq_info *mlx5_irq_get(struct mlx5_core_dev *dev, int vecidx) 
	return &irq_table->irq_info[vecidx];

}



static int mlx5_irq_attach_nb(struct mlx5_irq_info *irq,

static int mlx5_irq_attach_nb(struct mlx5_irq_table *irq_table, int vecidx,

			      struct notifier_block *nb)

{

	return atomic_notifier_chain_register(&irq->nh, nb);

	struct mlx5_irq_info *irq_info;



	irq_info = &irq_table->irq_info[vecidx];

	return atomic_notifier_chain_register(&irq_info->nh, nb);

}



static int mlx5_irq_detach_nb(struct mlx5_irq_info *irq,

static int mlx5_irq_detach_nb(struct mlx5_irq_table *irq_table, int vecidx,

			      struct notifier_block *nb)

{

	return atomic_notifier_chain_unregister(&irq->nh, nb);

	struct mlx5_irq_info *irq_info;



	irq_info = &irq_table->irq_info[vecidx];

	return atomic_notifier_chain_unregister(&irq_info->nh, nb);

}



static irqreturn_t mlx5_irq_int_handler(int irq, void *nh)
@@ -465,7 +471,8 @@ create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, 
	eq->doorbell = priv->uar->map + MLX5_EQ_DOORBEL_OFFSET;

	eq->irq_nb = param->nb;



	err = mlx5_irq_attach_nb(mlx5_irq_get(dev, vecidx), param->nb);

	err = mlx5_irq_attach_nb(dev->priv.eq_table->irq_table, vecidx,

				 param->nb);

	if (err)

		goto err_eq;
@@ -481,7 +488,7 @@ create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, 
	return 0;



err_detach:

	mlx5_irq_detach_nb(mlx5_irq_get(dev, vecidx), eq->irq_nb);

	mlx5_irq_detach_nb(dev->priv.eq_table->irq_table, vecidx, eq->irq_nb);



err_eq:

	mlx5_cmd_destroy_eq(dev, eq->eqn);
@@ -500,7 +507,8 @@ static int destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq) 


	mlx5_debug_eq_remove(dev, eq);



	err = mlx5_irq_detach_nb(mlx5_irq_get(dev, eq->vecidx), eq->irq_nb);

	err = mlx5_irq_detach_nb(dev->priv.eq_table->irq_table,

				 eq->vecidx, eq->irq_nb);

	if (err)

		mlx5_core_warn(eq->dev, "eq failed to detach from irq. err %d",

			       err);
@@ -1023,19 +1031,31 @@ unsigned int mlx5_comp_vectors_count(struct mlx5_core_dev *dev) 
}

EXPORT_SYMBOL(mlx5_comp_vectors_count);



static struct cpumask *

mlx5_irq_get_affinity_mask(struct mlx5_irq_table *irq_table, int vecidx)

{

	return irq_table->irq_info[vecidx].mask;

}



struct cpumask *

mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector)

{

	int vecidx = vector + MLX5_EQ_VEC_COMP_BASE;



	return dev->priv.eq_table->irq_table->irq_info[vecidx].mask;

	return mlx5_irq_get_affinity_mask(dev->priv.eq_table->irq_table,

					  vecidx);

}

EXPORT_SYMBOL(mlx5_comp_irq_get_affinity_mask);



#ifdef CONFIG_RFS_ACCEL

static struct cpu_rmap *mlx5_irq_get_rmap(struct mlx5_irq_table *irq_table)

{

	return irq_table->rmap;

}



struct cpu_rmap *mlx5_eq_table_get_rmap(struct mlx5_core_dev *dev)

{

	return dev->priv.eq_table->irq_table->rmap;

	return mlx5_irq_get_rmap(dev->priv.eq_table->irq_table);

}

#endif

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