Commit 7a179555 authored by Saeed Mahameed's avatar Saeed Mahameed
Browse files

net/mlx5: Allow port change event to be forwarded to driver notifiers chain 



The idea is to allow mlx5 core interfaces (mlx5e/mlx5_ib) to be able to
receive some allowed FW events as is via the new notifier API.

In this patch we allow forwarding port change event to mlx5 core interfaces
(mlx5e/mlx5_ib) as it was received from FW.
Once mlx5e and mlx5_ib start using this event we can safely remove the
redundant software version of it and its translation logic.

Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 20902be4

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

+16 −0
Original line number Diff line number Diff line
@@ -24,12 +24,18 @@ static int general_event(struct notifier_block *, unsigned long, void *); 
static int temp_warn(struct notifier_block *, unsigned long, void *);

static int port_module(struct notifier_block *, unsigned long, void *);



/* handler which forwards the event to events->nh, driver notifiers */

static int forward_event(struct notifier_block *, unsigned long, void *);



static struct mlx5_nb events_nbs_ref[] = {

	{.nb.notifier_call = any_notifier,  .event_type = MLX5_EVENT_TYPE_NOTIFY_ANY },

	{.nb.notifier_call = port_change,   .event_type = MLX5_EVENT_TYPE_PORT_CHANGE },

	{.nb.notifier_call = general_event, .event_type = MLX5_EVENT_TYPE_GENERAL_EVENT },

	{.nb.notifier_call = temp_warn,     .event_type = MLX5_EVENT_TYPE_TEMP_WARN_EVENT },

	{.nb.notifier_call = port_module,   .event_type = MLX5_EVENT_TYPE_PORT_MODULE_EVENT },



	/* Events to be forwarded (as is) to mlx5 core interfaces (mlx5e/mlx5_ib) */

	{.nb.notifier_call = forward_event,   .event_type = MLX5_EVENT_TYPE_PORT_CHANGE },

};



struct mlx5_events {
@@ -294,6 +300,16 @@ void mlx5_get_pme_stats(struct mlx5_core_dev *dev, struct mlx5_pme_stats *stats) 
	*stats = dev->priv.events->pme_stats;

}



/* forward event as is to registered interfaces (mlx5e/mlx5_ib) */

static int forward_event(struct notifier_block *nb, unsigned long event, void *data)

{

	struct mlx5_event_nb *event_nb = mlx5_nb_cof(nb, struct mlx5_event_nb, nb);

	struct mlx5_events   *events   = event_nb->ctx;



	atomic_notifier_call_chain(&events->nh, event, data);

	return NOTIFY_OK;

}



int mlx5_events_init(struct mlx5_core_dev *dev)

{

	struct mlx5_events *events = kzalloc(sizeof(*events), GFP_KERNEL);