diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/main.c | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c | 47 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h | 11 | ||||
| -rw-r--r-- | include/linux/mlx5/driver.h | 1 |
4 files changed, 49 insertions, 17 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 0c3613ef39b1..024339ce41f1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1837,8 +1837,14 @@ static int mlx5_notifiers_init(struct mlx5_core_dev *dev) if (err) goto err_sf_notifiers; + err = mlx5_sf_dev_notifier_init(dev); + if (err) + goto err_sf_dev_notifier; + return 0; +err_sf_dev_notifier: + mlx5_sf_notifiers_cleanup(dev); err_sf_notifiers: mlx5_sf_hw_notifier_cleanup(dev); err_sf_hw_notifier: @@ -1848,6 +1854,7 @@ err_sf_hw_notifier: static void mlx5_notifiers_cleanup(struct mlx5_core_dev *dev) { + mlx5_sf_dev_notifier_cleanup(dev); mlx5_sf_notifiers_cleanup(dev); mlx5_sf_hw_notifier_cleanup(dev); mlx5_events_cleanup(dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c index a68a8ee24dce..f310bde3d11f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c @@ -16,7 +16,6 @@ struct mlx5_sf_dev_table { struct xarray devices; phys_addr_t base_address; u64 sf_bar_length; - struct notifier_block nb; struct workqueue_struct *active_wq; struct work_struct work; u8 stop_active_wq:1; @@ -156,18 +155,23 @@ static void mlx5_sf_dev_del(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_de static int mlx5_sf_dev_state_change_handler(struct notifier_block *nb, unsigned long event_code, void *data) { - struct mlx5_sf_dev_table *table = container_of(nb, struct mlx5_sf_dev_table, nb); + struct mlx5_core_dev *dev = container_of(nb, struct mlx5_core_dev, + priv.sf_dev_nb); + struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table; const struct mlx5_vhca_state_event *event = data; struct mlx5_sf_dev *sf_dev; u16 max_functions; u16 sf_index; u16 base_id; - max_functions = mlx5_sf_max_functions(table->dev); + if (!table) + return 0; + + max_functions = mlx5_sf_max_functions(dev); if (!max_functions) return 0; - base_id = mlx5_sf_start_function_id(table->dev); + base_id = mlx5_sf_start_function_id(dev); if (event->function_id < base_id || event->function_id >= (base_id + max_functions)) return 0; @@ -177,19 +181,19 @@ mlx5_sf_dev_state_change_handler(struct notifier_block *nb, unsigned long event_ case MLX5_VHCA_STATE_INVALID: case MLX5_VHCA_STATE_ALLOCATED: if (sf_dev) - mlx5_sf_dev_del(table->dev, sf_dev, sf_index); + mlx5_sf_dev_del(dev, sf_dev, sf_index); break; case MLX5_VHCA_STATE_TEARDOWN_REQUEST: if (sf_dev) - mlx5_sf_dev_del(table->dev, sf_dev, sf_index); + mlx5_sf_dev_del(dev, sf_dev, sf_index); else - mlx5_core_err(table->dev, + mlx5_core_err(dev, "SF DEV: teardown state for invalid dev index=%d sfnum=0x%x\n", sf_index, event->sw_function_id); break; case MLX5_VHCA_STATE_ACTIVE: if (!sf_dev) - mlx5_sf_dev_add(table->dev, sf_index, event->function_id, + mlx5_sf_dev_add(dev, sf_index, event->function_id, event->sw_function_id); break; default: @@ -315,6 +319,15 @@ static void mlx5_sf_dev_destroy_active_works(struct mlx5_sf_dev_table *table) } } +int mlx5_sf_dev_notifier_init(struct mlx5_core_dev *dev) +{ + if (mlx5_core_is_sf(dev)) + return 0; + + dev->priv.sf_dev_nb.notifier_call = mlx5_sf_dev_state_change_handler; + return mlx5_vhca_event_notifier_register(dev, &dev->priv.sf_dev_nb); +} + void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev) { struct mlx5_sf_dev_table *table; @@ -329,17 +342,12 @@ void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev) goto table_err; } - table->nb.notifier_call = mlx5_sf_dev_state_change_handler; table->dev = dev; table->sf_bar_length = 1 << (MLX5_CAP_GEN(dev, log_min_sf_size) + 12); table->base_address = pci_resource_start(dev->pdev, 2); xa_init(&table->devices); dev->priv.sf_dev_table = table; - err = mlx5_vhca_event_notifier_register(dev, &table->nb); - if (err) - goto vhca_err; - err = mlx5_sf_dev_create_active_works(table); if (err) goto add_active_err; @@ -351,10 +359,8 @@ void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev) arm_err: mlx5_sf_dev_destroy_active_works(table); -add_active_err: - mlx5_vhca_event_notifier_unregister(dev, &table->nb); mlx5_vhca_event_work_queues_flush(dev); -vhca_err: +add_active_err: kfree(table); dev->priv.sf_dev_table = NULL; table_err: @@ -372,6 +378,14 @@ static void mlx5_sf_dev_destroy_all(struct mlx5_sf_dev_table *table) } } +void mlx5_sf_dev_notifier_cleanup(struct mlx5_core_dev *dev) +{ + if (mlx5_core_is_sf(dev)) + return; + + mlx5_vhca_event_notifier_unregister(dev, &dev->priv.sf_dev_nb); +} + void mlx5_sf_dev_table_destroy(struct mlx5_core_dev *dev) { struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table; @@ -380,7 +394,6 @@ void mlx5_sf_dev_table_destroy(struct mlx5_core_dev *dev) return; mlx5_sf_dev_destroy_active_works(table); - mlx5_vhca_event_notifier_unregister(dev, &table->nb); /* Now that event handler is not running, it is safe to destroy * the sf device without race. diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h index b99131e95e37..3ab0449c770c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h @@ -25,7 +25,9 @@ struct mlx5_sf_peer_devlink_event_ctx { int err; }; +int mlx5_sf_dev_notifier_init(struct mlx5_core_dev *dev); void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev); +void mlx5_sf_dev_notifier_cleanup(struct mlx5_core_dev *dev); void mlx5_sf_dev_table_destroy(struct mlx5_core_dev *dev); int mlx5_sf_driver_register(void); @@ -35,10 +37,19 @@ bool mlx5_sf_dev_allocated(const struct mlx5_core_dev *dev); #else +static inline int mlx5_sf_dev_notifier_init(struct mlx5_core_dev *dev) +{ + return 0; +} + static inline void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev) { } +static inline void mlx5_sf_dev_notifier_cleanup(struct mlx5_core_dev *dev) +{ +} + static inline void mlx5_sf_dev_table_destroy(struct mlx5_core_dev *dev) { } diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 6af62047a614..1c54aa6f74fb 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -616,6 +616,7 @@ struct mlx5_priv { #ifdef CONFIG_MLX5_SF struct mlx5_nb vhca_state_nb; struct blocking_notifier_head vhca_state_n_head; + struct notifier_block sf_dev_nb; struct mlx5_sf_dev_table *sf_dev_table; struct mlx5_core_dev *parent_mdev; #endif |