netdev - [net 11/17] net/mlx5e: Move Ethernet driver debugfs to profile init callback

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Date: Wed, 24 May 2023 20:48:41 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>,
	netdev@...r.kernel.org,
	Tariq Toukan <tariqt@...dia.com>,
	Jianbo Liu <jianbol@...dia.com>
Subject: [net 11/17] net/mlx5e: Move Ethernet driver debugfs to profile init callback

From: Jianbo Liu <jianbol@...dia.com>

As priv->dfs_root is cleared, and therefore missed, when change
eswitch mode, move the creation of the root debugfs to the init
callback of mlx5e_nic_profile and mlx5e_uplink_rep_profile, and
the destruction to the cleanup callback for symmeter.

Fixes: 288eca60cc31 ("net/mlx5e: Add Ethernet driver debugfs")
Signed-off-by: Jianbo Liu <jianbol@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 10 +++++-----
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c  |  6 ++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index a07bbe9a61be..a7c526ee5024 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5261,12 +5261,16 @@ static int mlx5e_nic_init(struct mlx5_core_dev *mdev,
 
 	mlx5e_timestamp_init(priv);
 
+	priv->dfs_root = debugfs_create_dir("nic",
+					    mlx5_debugfs_get_dev_root(mdev));
+
 	fs = mlx5e_fs_init(priv->profile, mdev,
 			   !test_bit(MLX5E_STATE_DESTROYING, &priv->state),
 			   priv->dfs_root);
 	if (!fs) {
 		err = -ENOMEM;
 		mlx5_core_err(mdev, "FS initialization failed, %d\n", err);
+		debugfs_remove_recursive(priv->dfs_root);
 		return err;
 	}
 	priv->fs = fs;
@@ -5287,6 +5291,7 @@ static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
 	mlx5e_health_destroy_reporters(priv);
 	mlx5e_ktls_cleanup(priv);
 	mlx5e_fs_cleanup(priv->fs);
+	debugfs_remove_recursive(priv->dfs_root);
 	priv->fs = NULL;
 }
 
@@ -6011,9 +6016,6 @@ static int mlx5e_probe(struct auxiliary_device *adev,
 	priv->profile = profile;
 	priv->ppriv = NULL;
 
-	priv->dfs_root = debugfs_create_dir("nic",
-					    mlx5_debugfs_get_dev_root(priv->mdev));
-
 	err = profile->init(mdev, netdev);
 	if (err) {
 		mlx5_core_err(mdev, "mlx5e_nic_profile init failed, %d\n", err);
@@ -6042,7 +6044,6 @@ static int mlx5e_probe(struct auxiliary_device *adev,
 err_profile_cleanup:
 	profile->cleanup(priv);
 err_destroy_netdev:
-	debugfs_remove_recursive(priv->dfs_root);
 	mlx5e_destroy_netdev(priv);
 err_devlink_port_unregister:
 	mlx5e_devlink_port_unregister(mlx5e_dev);
@@ -6062,7 +6063,6 @@ static void mlx5e_remove(struct auxiliary_device *adev)
 	unregister_netdev(priv->netdev);
 	mlx5e_suspend(adev, state);
 	priv->profile->cleanup(priv);
-	debugfs_remove_recursive(priv->dfs_root);
 	mlx5e_destroy_netdev(priv);
 	mlx5e_devlink_port_unregister(mlx5e_dev);
 	mlx5e_destroy_devlink(mlx5e_dev);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 1fc386eccaf8..3e7041bd5705 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -30,6 +30,7 @@
  * SOFTWARE.
  */
 
+#include <linux/debugfs.h>
 #include <linux/mlx5/fs.h>
 #include <net/switchdev.h>
 #include <net/pkt_cls.h>
@@ -812,11 +813,15 @@ static int mlx5e_init_ul_rep(struct mlx5_core_dev *mdev,
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 
+	priv->dfs_root = debugfs_create_dir("nic",
+					    mlx5_debugfs_get_dev_root(mdev));
+
 	priv->fs = mlx5e_fs_init(priv->profile, mdev,
 				 !test_bit(MLX5E_STATE_DESTROYING, &priv->state),
 				 priv->dfs_root);
 	if (!priv->fs) {
 		netdev_err(priv->netdev, "FS allocation failed\n");
+		debugfs_remove_recursive(priv->dfs_root);
 		return -ENOMEM;
 	}
 
@@ -829,6 +834,7 @@ static int mlx5e_init_ul_rep(struct mlx5_core_dev *mdev,
 static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
 {
 	mlx5e_fs_cleanup(priv->fs);
+	debugfs_remove_recursive(priv->dfs_root);
 	priv->fs = NULL;
 }
 
-- 
2.40.1