netdev - [patch net-next v2 14/15] devlink: move port_del() to devlink_port

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Date: Fri, 26 May 2023 12:28:40 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: kuba@...nel.org,
	pabeni@...hat.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	leon@...nel.org,
	saeedm@...dia.com,
	moshe@...dia.com,
	jesse.brandeburg@...el.com,
	anthony.l.nguyen@...el.com,
	tariqt@...dia.com,
	idosch@...dia.com,
	petrm@...dia.com,
	simon.horman@...igine.com,
	ecree.xilinx@...il.com,
	habetsm.xilinx@...il.com,
	michal.wilczynski@...el.com,
	jacob.e.keller@...el.com
Subject: [patch net-next v2 14/15] devlink: move port_del() to devlink_port_ops

From: Jiri Pirko <jiri@...dia.com>

Move port_del() from devlink_ops into newly introduced devlink_port_ops.

Signed-off-by: Jiri Pirko <jiri@...dia.com>
---
v1->v2:
- avoid ops check as they no longer could be null
---
 .../net/ethernet/mellanox/mlx5/core/devlink.c |  1 -
 .../mellanox/mlx5/core/esw/devlink_port.c     |  3 +++
 include/net/devlink.h                         | 22 +++++--------------
 net/devlink/leftover.c                        |  6 ++---
 4 files changed, 11 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
index e39fd85ea2f9..63635cc44479 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -320,7 +320,6 @@ static const struct devlink_ops mlx5_devlink_ops = {
 #endif
 #ifdef CONFIG_MLX5_SF_MANAGER
 	.port_new = mlx5_devlink_sf_port_new,
-	.port_del = mlx5_devlink_sf_port_del,
 #endif
 	.flash_update = mlx5_devlink_flash_update,
 	.info_get = mlx5_devlink_info_get,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
index 76c5d6e9d47f..f370f67d9e33 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
@@ -145,6 +145,9 @@ struct devlink_port *mlx5_esw_offloads_devlink_port(struct mlx5_eswitch *esw, u1
 }
 
 static const struct devlink_port_ops mlx5_esw_dl_sf_port_ops = {
+#ifdef CONFIG_MLX5_SF_MANAGER
+	.port_del = mlx5_devlink_sf_port_del,
+#endif
 	.port_fn_hw_addr_get = mlx5_devlink_port_fn_hw_addr_get,
 	.port_fn_hw_addr_set = mlx5_devlink_port_fn_hw_addr_set,
 	.port_fn_roce_get = mlx5_devlink_port_fn_roce_get,
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 21254d6884ee..aeccab044358 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -1447,23 +1447,6 @@ struct devlink_ops {
 	int (*port_new)(struct devlink *devlink,
 			const struct devlink_port_new_attrs *attrs,
 			struct netlink_ext_ack *extack);
-	/**
-	 * port_del() - Delete a port function
-	 * @devlink: Devlink instance
-	 * @port: The devlink port
-	 * @extack: extack for reporting error messages
-	 *
-	 * Devlink core will call this device driver function upon user request
-	 * to delete a previously created port function
-	 *
-	 * Notes:
-	 *	- On success, drivers must unregister the corresponding devlink
-	 *	  port
-	 *
-	 * Return: 0 on success, negative value otherwise.
-	 */
-	int (*port_del)(struct devlink *devlink, struct devlink_port *port,
-			struct netlink_ext_ack *extack);
 
 	/**
 	 * Rate control callbacks.
@@ -1560,6 +1543,9 @@ void devlink_free(struct devlink *devlink);
  * @port_unsplit: Callback used to unsplit the port group back into
  *		  a single port.
  * @port_type_set: Callback used to set a type of a port.
+ * @port_del: Callback used to delete selected port along with related function.
+ *	      Devlink core calls this upon user request to delete
+ *	      a port previously created by devlink_ops->port_new().
  * @port_fn_hw_addr_get: Callback used to set port function's hardware address.
  *			 Should be used by device drivers to report
  *			 the hardware address of a function managed
@@ -1602,6 +1588,8 @@ struct devlink_port_ops {
 			    struct netlink_ext_ack *extack);
 	int (*port_type_set)(struct devlink_port *devlink_port,
 			     enum devlink_port_type port_type);
+	int (*port_del)(struct devlink *devlink, struct devlink_port *port,
+			struct netlink_ext_ack *extack);
 	int (*port_fn_hw_addr_get)(struct devlink_port *port, u8 *hw_addr,
 				   int *hw_addr_len,
 				   struct netlink_ext_ack *extack);
diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c
index 03ce24a1397e..52aaa439caa5 100644
--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@ -1348,7 +1348,7 @@ static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb,
 	struct devlink_port_new_attrs new_attrs = {};
 	struct devlink *devlink = info->user_ptr[0];
 
-	if (!devlink->ops->port_new || !devlink->ops->port_del)
+	if (!devlink->ops->port_new)
 		return -EOPNOTSUPP;
 
 	if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] ||
@@ -1387,10 +1387,10 @@ static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb,
 	struct netlink_ext_ack *extack = info->extack;
 	struct devlink *devlink = info->user_ptr[0];
 
-	if (!devlink->ops->port_del)
+	if (!devlink_port->ops->port_del)
 		return -EOPNOTSUPP;
 
-	return devlink->ops->port_del(devlink, devlink_port, extack);
+	return devlink_port->ops->port_del(devlink, devlink_port, extack);
 }
 
 static int
-- 
2.39.2