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: Saeed Mahameed <saeedm@mellanox.com>
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@ -24,12 +24,18 @@ static int general_event(struct notifier_block *, unsigned long, void *);
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static int temp_warn(struct notifier_block *, unsigned long, void *);
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static int port_module(struct notifier_block *, unsigned long, void *);
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/* handler which forwards the event to events->nh, driver notifiers */
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static int forward_event(struct notifier_block *, unsigned long, void *);
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static struct mlx5_nb events_nbs_ref[] = {
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{.nb.notifier_call = any_notifier, .event_type = MLX5_EVENT_TYPE_NOTIFY_ANY },
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{.nb.notifier_call = port_change, .event_type = MLX5_EVENT_TYPE_PORT_CHANGE },
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{.nb.notifier_call = general_event, .event_type = MLX5_EVENT_TYPE_GENERAL_EVENT },
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{.nb.notifier_call = temp_warn, .event_type = MLX5_EVENT_TYPE_TEMP_WARN_EVENT },
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{.nb.notifier_call = port_module, .event_type = MLX5_EVENT_TYPE_PORT_MODULE_EVENT },
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/* Events to be forwarded (as is) to mlx5 core interfaces (mlx5e/mlx5_ib) */
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{.nb.notifier_call = forward_event, .event_type = MLX5_EVENT_TYPE_PORT_CHANGE },
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};
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struct mlx5_events {
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@ -294,6 +300,16 @@ void mlx5_get_pme_stats(struct mlx5_core_dev *dev, struct mlx5_pme_stats *stats)
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*stats = dev->priv.events->pme_stats;
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}
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/* forward event as is to registered interfaces (mlx5e/mlx5_ib) */
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static int forward_event(struct notifier_block *nb, unsigned long event, void *data)
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{
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struct mlx5_event_nb *event_nb = mlx5_nb_cof(nb, struct mlx5_event_nb, nb);
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struct mlx5_events *events = event_nb->ctx;
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atomic_notifier_call_chain(&events->nh, event, data);
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return NOTIFY_OK;
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}
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int mlx5_events_init(struct mlx5_core_dev *dev)
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{
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struct mlx5_events *events = kzalloc(sizeof(*events), GFP_KERNEL);
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