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net/mlx5: Separate IRQ table creation from EQ table creation
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IRQ allocation should be part of the IRQ table life-cycle.

Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Yuval Avnery authored and Saeed Mahameed committed Jun 13, 2019
1 parent 90426cc commit e1706e6
Showing 3 changed files with 14 additions and 19 deletions.
22 changes: 3 additions & 19 deletions drivers/net/ethernet/mellanox/mlx5/core/eq.c
Original file line number Diff line number Diff line change
@@ -1056,18 +1056,10 @@ struct mlx5_eq_comp *mlx5_eqn2comp_eq(struct mlx5_core_dev *dev, int eqn)
void mlx5_core_eq_free_irqs(struct mlx5_core_dev *dev)
{
struct mlx5_eq_table *table = dev->priv.eq_table;
int i, max_eqs;

clear_comp_irqs_affinity_hints(dev);
irq_clear_rmap(dev);
mutex_lock(&table->lock); /* sync with create/destroy_async_eq */
max_eqs = table->num_comp_eqs + MLX5_EQ_VEC_COMP_BASE;
for (i = max_eqs - 1; i >= 0; i--) {
free_irq(pci_irq_vector(dev->pdev, i),
&mlx5_irq_get(dev, i)->nh);
}
mlx5_irq_table_destroy(dev);
mutex_unlock(&table->lock);
pci_free_irq_vectors(dev->pdev);
}

static void unrequest_irqs(struct mlx5_core_dev *dev)
@@ -1080,7 +1072,7 @@ static void unrequest_irqs(struct mlx5_core_dev *dev)
&mlx5_irq_get(dev, i)->nh);
}

static int alloc_irq_vectors(struct mlx5_core_dev *dev)
int mlx5_irq_table_create(struct mlx5_core_dev *dev)
{
struct mlx5_priv *priv = &dev->priv;
struct mlx5_irq_table *table = priv->irq_table;
@@ -1134,7 +1126,7 @@ static int alloc_irq_vectors(struct mlx5_core_dev *dev)
return err;
}

static void free_irq_vectors(struct mlx5_core_dev *dev)
void mlx5_irq_table_destroy(struct mlx5_core_dev *dev)
{
struct mlx5_irq_table *table = dev->priv.irq_table;
int i;
@@ -1157,12 +1149,6 @@ int mlx5_eq_table_create(struct mlx5_core_dev *dev)
struct mlx5_eq_table *eq_table = dev->priv.eq_table;
int err;

err = alloc_irq_vectors(dev);
if (err) {
mlx5_core_err(dev, "Failed to create IRQ vectors\n");
return err;
}

eq_table->num_comp_eqs =
mlx5_irq_get_num_comp(eq_table->irq_table);

@@ -1182,15 +1168,13 @@ int mlx5_eq_table_create(struct mlx5_core_dev *dev)
err_comp_eqs:
destroy_async_eqs(dev);
err_async_eqs:
free_irq_vectors(dev);
return err;
}

void mlx5_eq_table_destroy(struct mlx5_core_dev *dev)
{
destroy_comp_eqs(dev);
destroy_async_eqs(dev);
free_irq_vectors(dev);
}

int mlx5_eq_notifier_register(struct mlx5_core_dev *dev, struct mlx5_nb *nb)
9 changes: 9 additions & 0 deletions drivers/net/ethernet/mellanox/mlx5/core/main.c
Original file line number Diff line number Diff line change
@@ -1047,6 +1047,12 @@ static int mlx5_load(struct mlx5_core_dev *dev)
mlx5_events_start(dev);
mlx5_pagealloc_start(dev);

err = mlx5_irq_table_create(dev);
if (err) {
mlx5_core_err(dev, "Failed to alloc IRQs\n");
goto err_irq_table;
}

err = mlx5_eq_table_create(dev);
if (err) {
mlx5_core_err(dev, "Failed to create EQs\n");
@@ -1118,6 +1124,8 @@ static int mlx5_load(struct mlx5_core_dev *dev)
err_fw_tracer:
mlx5_eq_table_destroy(dev);
err_eq_table:
mlx5_irq_table_destroy(dev);
err_irq_table:
mlx5_pagealloc_stop(dev);
mlx5_events_stop(dev);
mlx5_put_uars_page(dev, dev->priv.uar);
@@ -1134,6 +1142,7 @@ static void mlx5_unload(struct mlx5_core_dev *dev)
mlx5_fpga_device_stop(dev);
mlx5_fw_tracer_cleanup(dev->tracer);
mlx5_eq_table_destroy(dev);
mlx5_irq_table_destroy(dev);
mlx5_pagealloc_stop(dev);
mlx5_events_stop(dev);
mlx5_put_uars_page(dev, dev->priv.uar);
2 changes: 2 additions & 0 deletions drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
Original file line number Diff line number Diff line change
@@ -155,6 +155,8 @@ void mlx5_lag_remove(struct mlx5_core_dev *dev);

int mlx5_irq_table_init(struct mlx5_core_dev *dev);
void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev);
int mlx5_irq_table_create(struct mlx5_core_dev *dev);
void mlx5_irq_table_destroy(struct mlx5_core_dev *dev);

int mlx5_events_init(struct mlx5_core_dev *dev);
void mlx5_events_cleanup(struct mlx5_core_dev *dev);

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