Re: [PATCH mlx5-next 01/17] net/mlx5: Simplify IPsec flow steering init/cleanup functions

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On 10 Apr 11:28, Leon Romanovsky wrote:
From: Leon Romanovsky <leonro@xxxxxxxxxx>

Cleanup IPsec FS initialization and cleanup functions.

Can you be more clear about what are you cleaning up ?

unfolding/joining static functions shouldn't be considered as cleanup.

Also i don't agree these patches should go to mlx5-next, we need to avoid
bloating  mlx5-next.
Many of these patches are purely ipsec, yes i understand you are heavily
modifying include/linux/mlx5/accel.h but from what I can tell, it's not
affecting rdma.

Please give me a chance to review the whole series until next week as i am
out of office this week.


Reviewed-by: Raed Salem <raeds@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
.../mellanox/mlx5/core/en_accel/ipsec.c       |  4 +-
.../mellanox/mlx5/core/en_accel/ipsec_fs.c    | 73 ++++++-------------
.../mellanox/mlx5/core/en_accel/ipsec_fs.h    |  4 +-
3 files changed, 27 insertions(+), 54 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index c280a18ff002..5a10755dd4f1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -424,7 +424,7 @@ int mlx5e_ipsec_init(struct mlx5e_priv *priv)
	}

	priv->ipsec = ipsec;
-	mlx5e_accel_ipsec_fs_init(priv);
+	mlx5e_ipsec_fs_init(ipsec);
	netdev_dbg(priv->netdev, "IPSec attached to netdevice\n");
	return 0;
}
@@ -436,7 +436,7 @@ void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv)
	if (!ipsec)
		return;

-	mlx5e_accel_ipsec_fs_cleanup(priv);
+	mlx5e_ipsec_fs_cleanup(ipsec);
	destroy_workqueue(ipsec->wq);

	kfree(ipsec);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
index 66b529e36ea1..869b5692e9b9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
@@ -632,81 +632,54 @@ void mlx5e_accel_ipsec_fs_del_rule(struct mlx5e_priv *priv,
		tx_del_rule(priv, ipsec_rule);
}

-static void fs_cleanup_tx(struct mlx5e_priv *priv)
-{
-	mutex_destroy(&priv->ipsec->tx_fs->mutex);
-	WARN_ON(priv->ipsec->tx_fs->refcnt);
-	kfree(priv->ipsec->tx_fs);
-	priv->ipsec->tx_fs = NULL;
-}
-
-static void fs_cleanup_rx(struct mlx5e_priv *priv)
+void mlx5e_ipsec_fs_cleanup(struct mlx5e_ipsec *ipsec)
{
	struct mlx5e_accel_fs_esp_prot *fs_prot;
	struct mlx5e_accel_fs_esp *accel_esp;
	enum accel_fs_esp_type i;

-	accel_esp = priv->ipsec->rx_fs;
+	if (!ipsec->rx_fs)
+		return;
+
+	mutex_destroy(&ipsec->tx_fs->mutex);
+	WARN_ON(ipsec->tx_fs->refcnt);
+	kfree(ipsec->tx_fs);
+
+	accel_esp = ipsec->rx_fs;
	for (i = 0; i < ACCEL_FS_ESP_NUM_TYPES; i++) {
		fs_prot = &accel_esp->fs_prot[i];
		mutex_destroy(&fs_prot->prot_mutex);
		WARN_ON(fs_prot->refcnt);
	}
-	kfree(priv->ipsec->rx_fs);
-	priv->ipsec->rx_fs = NULL;
-}
-
-static int fs_init_tx(struct mlx5e_priv *priv)
-{
-	priv->ipsec->tx_fs =
-		kzalloc(sizeof(struct mlx5e_ipsec_tx), GFP_KERNEL);
-	if (!priv->ipsec->tx_fs)
-		return -ENOMEM;
-
-	mutex_init(&priv->ipsec->tx_fs->mutex);
-	return 0;
+	kfree(ipsec->rx_fs);
}

-static int fs_init_rx(struct mlx5e_priv *priv)
+int mlx5e_ipsec_fs_init(struct mlx5e_ipsec *ipsec)
{
	struct mlx5e_accel_fs_esp_prot *fs_prot;
	struct mlx5e_accel_fs_esp *accel_esp;
	enum accel_fs_esp_type i;
+	int err = -ENOMEM;

-	priv->ipsec->rx_fs =
-		kzalloc(sizeof(struct mlx5e_accel_fs_esp), GFP_KERNEL);
-	if (!priv->ipsec->rx_fs)
+	ipsec->tx_fs = kzalloc(sizeof(*ipsec->tx_fs), GFP_KERNEL);
+	if (!ipsec->tx_fs)
		return -ENOMEM;

-	accel_esp = priv->ipsec->rx_fs;
+	ipsec->rx_fs = kzalloc(sizeof(*ipsec->rx_fs), GFP_KERNEL);
+	if (!ipsec->rx_fs)
+		goto err_rx;
+
+	mutex_init(&ipsec->tx_fs->mutex);
+
+	accel_esp = ipsec->rx_fs;
	for (i = 0; i < ACCEL_FS_ESP_NUM_TYPES; i++) {
		fs_prot = &accel_esp->fs_prot[i];
		mutex_init(&fs_prot->prot_mutex);
	}

	return 0;
-}
-
-void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_priv *priv)
-{
-	if (!priv->ipsec->rx_fs)
-		return;
-
-	fs_cleanup_tx(priv);
-	fs_cleanup_rx(priv);
-}
-
-int mlx5e_accel_ipsec_fs_init(struct mlx5e_priv *priv)
-{
-	int err;
-
-	err = fs_init_tx(priv);
-	if (err)
-		return err;
-
-	err = fs_init_rx(priv);
-	if (err)
-		fs_cleanup_tx(priv);

+err_rx:
+	kfree(ipsec->tx_fs);
	return err;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h
index b70953979709..8e0e829ab58f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h
@@ -9,8 +9,8 @@
#include "ipsec_offload.h"
#include "en/fs.h"

-void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_priv *priv);
-int mlx5e_accel_ipsec_fs_init(struct mlx5e_priv *priv);
+void mlx5e_ipsec_fs_cleanup(struct mlx5e_ipsec *ipsec);
+int mlx5e_ipsec_fs_init(struct mlx5e_ipsec *ipsec);
int mlx5e_accel_ipsec_fs_add_rule(struct mlx5e_priv *priv,
				  struct mlx5_accel_esp_xfrm_attrs *attrs,
				  u32 ipsec_obj_id,
--
2.35.1




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