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@xxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/events.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/events.c b/drivers/net/ethernet/mellanox/mlx5/core/events.c
index 560cc14c55f7..adab66eb726c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -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);
--
2.19.1
