netdev - [PATCH net-next 1/5] net: switchdev: Wrap enums in mapper macros

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Date: Tue, 23 Jan 2024 16:37:03 +0100
From: Tobias Waldekranz <tobias@...dekranz.com>
To: davem@...emloft.net,
	kuba@...nel.org
Cc: jiri@...nulli.us,
	ivecera@...hat.com,
	netdev@...r.kernel.org,
	roopa@...dia.com,
	razor@...ckwall.org,
	bridge@...ts.linux.dev,
	rostedt@...dmis.org,
	mhiramat@...nel.org,
	linux-trace-kernel@...r.kernel.org
Subject: [PATCH net-next 1/5] net: switchdev: Wrap enums in mapper macros

In order to avoid having to maintain separate mappings from enum
values to strings, wrap enumerators in mapper macros, so that
enum-to-string tables can be generated.

This will make it easier to create helpers that convert switchdev
objects to strings.

Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com>
---
 include/net/switchdev.h | 113 ++++++++++++++++++++++++----------------
 1 file changed, 68 insertions(+), 45 deletions(-)

diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index a43062d4c734..76eabf95c647 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -16,21 +16,28 @@
 #define SWITCHDEV_F_SKIP_EOPNOTSUPP	BIT(1)
 #define SWITCHDEV_F_DEFER		BIT(2)
 
+#define SWITCHDEV_ATTR_ID_MAPPER(_fn)	\
+	_fn(UNDEFINED),			\
+	_fn(PORT_STP_STATE),		\
+	_fn(PORT_MST_STATE),		\
+	_fn(PORT_BRIDGE_FLAGS),		\
+	_fn(PORT_PRE_BRIDGE_FLAGS),	\
+	_fn(PORT_MROUTER),		\
+	_fn(BRIDGE_AGEING_TIME),	\
+	_fn(BRIDGE_VLAN_FILTERING),	\
+	_fn(BRIDGE_VLAN_PROTOCOL),	\
+	_fn(BRIDGE_MC_DISABLED),	\
+	_fn(BRIDGE_MROUTER),		\
+	_fn(BRIDGE_MST),		\
+	_fn(MRP_PORT_ROLE),		\
+	_fn(VLAN_MSTI),			\
+	/*  */
+
+#define SWITCHDEV_ATTR_ID_ENUMERATOR(_id) \
+	SWITCHDEV_ATTR_ID_ ## _id
+
 enum switchdev_attr_id {
-	SWITCHDEV_ATTR_ID_UNDEFINED,
-	SWITCHDEV_ATTR_ID_PORT_STP_STATE,
-	SWITCHDEV_ATTR_ID_PORT_MST_STATE,
-	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
-	SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
-	SWITCHDEV_ATTR_ID_PORT_MROUTER,
-	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
-	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
-	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL,
-	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
-	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
-	SWITCHDEV_ATTR_ID_BRIDGE_MST,
-	SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
-	SWITCHDEV_ATTR_ID_VLAN_MSTI,
+	SWITCHDEV_ATTR_ID_MAPPER(SWITCHDEV_ATTR_ID_ENUMERATOR)
 };
 
 struct switchdev_mst_state {
@@ -69,18 +76,25 @@ struct switchdev_attr {
 	} u;
 };
 
+#define SWITCHDEV_OBJ_ID_MAPPER(_fn)	\
+	_fn(UNDEFINED),			\
+	_fn(PORT_VLAN),			\
+	_fn(PORT_MDB),			\
+	_fn(HOST_MDB),			\
+	_fn(MRP),			\
+	_fn(RING_TEST_MRP),		\
+	_fn(RING_ROLE_MRP),		\
+	_fn(RING_STATE_MRP),		\
+	_fn(IN_TEST_MRP),		\
+	_fn(IN_ROLE_MRP),		\
+	_fn(IN_STATE_MRP),		\
+	/*  */
+
+#define SWITCHDEV_OBJ_ID_ENUMERATOR(_id) \
+	SWITCHDEV_OBJ_ID_ ## _id
+
 enum switchdev_obj_id {
-	SWITCHDEV_OBJ_ID_UNDEFINED,
-	SWITCHDEV_OBJ_ID_PORT_VLAN,
-	SWITCHDEV_OBJ_ID_PORT_MDB,
-	SWITCHDEV_OBJ_ID_HOST_MDB,
-	SWITCHDEV_OBJ_ID_MRP,
-	SWITCHDEV_OBJ_ID_RING_TEST_MRP,
-	SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
-	SWITCHDEV_OBJ_ID_RING_STATE_MRP,
-	SWITCHDEV_OBJ_ID_IN_TEST_MRP,
-	SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
-	SWITCHDEV_OBJ_ID_IN_STATE_MRP,
+	SWITCHDEV_OBJ_ID_MAPPER(SWITCHDEV_OBJ_ID_ENUMERATOR)
 };
 
 struct switchdev_obj {
@@ -209,27 +223,36 @@ struct switchdev_brport {
 	bool tx_fwd_offload;
 };
 
+#define SWITCHDEV_TYPE_MAPPER(_fn)	\
+	_fn(UNKNOWN),			\
+					\
+	_fn(FDB_ADD_TO_BRIDGE),		\
+	_fn(FDB_DEL_TO_BRIDGE),		\
+	_fn(FDB_ADD_TO_DEVICE),		\
+	_fn(FDB_DEL_TO_DEVICE),		\
+	_fn(FDB_OFFLOADED),		\
+	_fn(FDB_FLUSH_TO_BRIDGE),	\
+					\
+	_fn(PORT_OBJ_ADD),		\
+	_fn(PORT_OBJ_DEL),		\
+	_fn(PORT_ATTR_SET),		\
+					\
+	_fn(VXLAN_FDB_ADD_TO_BRIDGE),	\
+	_fn(VXLAN_FDB_DEL_TO_BRIDGE),	\
+	_fn(VXLAN_FDB_ADD_TO_DEVICE),	\
+	_fn(VXLAN_FDB_DEL_TO_DEVICE),	\
+	_fn(VXLAN_FDB_OFFLOADED),	\
+					\
+	_fn(BRPORT_OFFLOADED),		\
+	_fn(BRPORT_UNOFFLOADED),	\
+	_fn(BRPORT_REPLAY),		\
+	/*  */
+
+#define SWITCHDEV_TYPE_ENUMERATOR(_id) \
+	SWITCHDEV_ ## _id
+
 enum switchdev_notifier_type {
-	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
-	SWITCHDEV_FDB_DEL_TO_BRIDGE,
-	SWITCHDEV_FDB_ADD_TO_DEVICE,
-	SWITCHDEV_FDB_DEL_TO_DEVICE,
-	SWITCHDEV_FDB_OFFLOADED,
-	SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
-
-	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
-	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
-	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
-
-	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
-	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
-	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
-	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
-	SWITCHDEV_VXLAN_FDB_OFFLOADED,
-
-	SWITCHDEV_BRPORT_OFFLOADED,
-	SWITCHDEV_BRPORT_UNOFFLOADED,
-	SWITCHDEV_BRPORT_REPLAY,
+	SWITCHDEV_TYPE_MAPPER(SWITCHDEV_TYPE_ENUMERATOR)
 };
 
 struct switchdev_notifier_info {
-- 
2.34.1