netdev - [net-next 05/14] net/mlx5: Rename events notifier header

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Message-ID: <20210126232419.175836-6-saeedm@nvidia.com>
Date:   Tue, 26 Jan 2021 15:24:10 -0800
From:   Saeed Mahameed <saeedm@...dia.com>
To:     Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, Aya Levin <ayal@...dia.com>,
        Tariq Toukan <tariqt@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 05/14] net/mlx5: Rename events notifier header

From: Aya Levin <ayal@...dia.com>

Change the naming of events notifier head to clarify that it handles
only firmware events. Coming patches in the set, add event notifier for
software events.

Signed-off-by: Aya Levin <ayal@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../net/ethernet/mellanox/mlx5/core/events.c  | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/events.c b/drivers/net/ethernet/mellanox/mlx5/core/events.c
index 3ce17c3d7a00..054c0bc36d24 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -23,7 +23,7 @@ static int temp_warn(struct notifier_block *, unsigned long, void *);
 static int port_module(struct notifier_block *, unsigned long, void *);
 static int pcie_core(struct notifier_block *, unsigned long, void *);
 
-/* handler which forwards the event to events->nh, driver notifiers */
+/* handler which forwards the event to events->fw_nh, driver notifiers */
 static int forward_event(struct notifier_block *, unsigned long, void *);
 
 static struct mlx5_nb events_nbs_ref[] = {
@@ -55,8 +55,8 @@ struct mlx5_events {
 	struct mlx5_core_dev *dev;
 	struct workqueue_struct *wq;
 	struct mlx5_event_nb  notifiers[ARRAY_SIZE(events_nbs_ref)];
-	/* driver notifier chain */
-	struct atomic_notifier_head nh;
+	/* driver notifier chain for fw events */
+	struct atomic_notifier_head fw_nh;
 	/* port module events stats */
 	struct mlx5_pme_stats pme_stats;
 	/*pcie_core*/
@@ -331,7 +331,7 @@ static int forward_event(struct notifier_block *nb, unsigned long event, void *d
 
 	mlx5_core_dbg(events->dev, "Async eqe type %s, subtype (%d) forward to interfaces\n",
 		      eqe_type_str(eqe->type), eqe->sub_type);
-	atomic_notifier_call_chain(&events->nh, event, data);
+	atomic_notifier_call_chain(&events->fw_nh, event, data);
 	return NOTIFY_OK;
 }
 
@@ -342,7 +342,7 @@ int mlx5_events_init(struct mlx5_core_dev *dev)
 	if (!events)
 		return -ENOMEM;
 
-	ATOMIC_INIT_NOTIFIER_HEAD(&events->nh);
+	ATOMIC_INIT_NOTIFIER_HEAD(&events->fw_nh);
 	events->dev = dev;
 	dev->priv.events = events;
 	events->wq = create_singlethread_workqueue("mlx5_events");
@@ -383,11 +383,14 @@ void mlx5_events_stop(struct mlx5_core_dev *dev)
 	flush_workqueue(events->wq);
 }
 
+/* This API is used only for processing and forwarding firmware
+ * events to mlx5 consumer.
+ */
 int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb)
 {
 	struct mlx5_events *events = dev->priv.events;
 
-	return atomic_notifier_chain_register(&events->nh, nb);
+	return atomic_notifier_chain_register(&events->fw_nh, nb);
 }
 EXPORT_SYMBOL(mlx5_notifier_register);
 
@@ -395,11 +398,11 @@ int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *n
 {
 	struct mlx5_events *events = dev->priv.events;
 
-	return atomic_notifier_chain_unregister(&events->nh, nb);
+	return atomic_notifier_chain_unregister(&events->fw_nh, nb);
 }
 EXPORT_SYMBOL(mlx5_notifier_unregister);
 
 int mlx5_notifier_call_chain(struct mlx5_events *events, unsigned int event, void *data)
 {
-	return atomic_notifier_call_chain(&events->nh, event, data);
+	return atomic_notifier_call_chain(&events->fw_nh, event, data);
 }
-- 
2.29.2