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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/include/net/switchdev.h
....@@ -1,12 +1,8 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
12 /*
23  * include/net/switchdev.h - Switch device API
34  * Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
45  * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
5
- *
6
- * This program is free software; you can redistribute it and/or modify
7
- * it under the terms of the GNU General Public License as published by
8
- * the Free Software Foundation; either version 2 of the License, or
9
- * (at your option) any later version.
106  */
117 #ifndef _LINUX_SWITCHDEV_H_
128 #define _LINUX_SWITCHDEV_H_
....@@ -20,14 +16,7 @@
2016 #define SWITCHDEV_F_SKIP_EOPNOTSUPP	BIT(1)
2117 #define SWITCHDEV_F_DEFER		BIT(2)
2218 
23
-struct switchdev_trans_item {
24
-	struct list_head list;
25
-	void *data;
26
-	void (*destructor)(const void *data);
27
-};
28
-
2919 struct switchdev_trans {
30
-	struct list_head item_list;
3120 	bool ph_prepare;
3221 };
3322 
....@@ -43,15 +32,18 @@
4332 
4433 enum switchdev_attr_id {
4534 	SWITCHDEV_ATTR_ID_UNDEFINED,
46
-	SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
4735 	SWITCHDEV_ATTR_ID_PORT_STP_STATE,
4836 	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
49
-	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
37
+	SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
5038 	SWITCHDEV_ATTR_ID_PORT_MROUTER,
5139 	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
5240 	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
41
+	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL,
5342 	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
5443 	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
44
+#if IS_ENABLED(CONFIG_BRIDGE_MRP)
45
+	SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
46
+#endif
5547 };
5648 
5749 struct switchdev_attr {
....@@ -61,14 +53,16 @@
6153 	void *complete_priv;
6254 	void (*complete)(struct net_device *dev, int err, void *priv);
6355 	union {
64
-		struct netdev_phys_item_id ppid;	/* PORT_PARENT_ID */
6556 		u8 stp_state;				/* PORT_STP_STATE */
66
-		unsigned long brport_flags;		/* PORT_BRIDGE_FLAGS */
67
-		unsigned long brport_flags_support;	/* PORT_BRIDGE_FLAGS_SUPPORT */
57
+		unsigned long brport_flags;		/* PORT_{PRE}_BRIDGE_FLAGS */
6858 		bool mrouter;				/* PORT_MROUTER */
6959 		clock_t ageing_time;			/* BRIDGE_AGEING_TIME */
7060 		bool vlan_filtering;			/* BRIDGE_VLAN_FILTERING */
61
+		u16 vlan_protocol;			/* BRIDGE_VLAN_PROTOCOL */
7162 		bool mc_disabled;			/* MC_DISABLED */
63
+#if IS_ENABLED(CONFIG_BRIDGE_MRP)
64
+		u8 mrp_port_role;			/* MRP_PORT_ROLE */
65
+#endif
7266 	} u;
7367 };
7468 
....@@ -77,6 +71,16 @@
7771 	SWITCHDEV_OBJ_ID_PORT_VLAN,
7872 	SWITCHDEV_OBJ_ID_PORT_MDB,
7973 	SWITCHDEV_OBJ_ID_HOST_MDB,
74
+#if IS_ENABLED(CONFIG_BRIDGE_MRP)
75
+	SWITCHDEV_OBJ_ID_MRP,
76
+	SWITCHDEV_OBJ_ID_RING_TEST_MRP,
77
+	SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
78
+	SWITCHDEV_OBJ_ID_RING_STATE_MRP,
79
+	SWITCHDEV_OBJ_ID_IN_TEST_MRP,
80
+	SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
81
+	SWITCHDEV_OBJ_ID_IN_STATE_MRP,
82
+
83
+#endif
8084 };
8185 
8286 struct switchdev_obj {
....@@ -95,8 +99,8 @@
9599 	u16 vid_end;
96100 };
97101 
98
-#define SWITCHDEV_OBJ_PORT_VLAN(obj) \
99
-	container_of(obj, struct switchdev_obj_port_vlan, obj)
102
+#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
103
+	container_of((OBJ), struct switchdev_obj_port_vlan, obj)
100104 
101105 /* SWITCHDEV_OBJ_ID_PORT_MDB */
102106 struct switchdev_obj_port_mdb {
....@@ -105,39 +109,93 @@
105109 	u16 vid;
106110 };
107111 
108
-#define SWITCHDEV_OBJ_PORT_MDB(obj) \
109
-	container_of(obj, struct switchdev_obj_port_mdb, obj)
112
+#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
113
+	container_of((OBJ), struct switchdev_obj_port_mdb, obj)
110114 
111
-void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
112
-				  void *data, void (*destructor)(void const *),
113
-				  struct switchdev_trans_item *tritem);
114
-void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
115
+
116
+#if IS_ENABLED(CONFIG_BRIDGE_MRP)
117
+/* SWITCHDEV_OBJ_ID_MRP */
118
+struct switchdev_obj_mrp {
119
+	struct switchdev_obj obj;
120
+	struct net_device *p_port;
121
+	struct net_device *s_port;
122
+	u32 ring_id;
123
+	u16 prio;
124
+};
125
+
126
+#define SWITCHDEV_OBJ_MRP(OBJ) \
127
+	container_of((OBJ), struct switchdev_obj_mrp, obj)
128
+
129
+/* SWITCHDEV_OBJ_ID_RING_TEST_MRP */
130
+struct switchdev_obj_ring_test_mrp {
131
+	struct switchdev_obj obj;
132
+	/* The value is in us and a value of 0 represents to stop */
133
+	u32 interval;
134
+	u8 max_miss;
135
+	u32 ring_id;
136
+	u32 period;
137
+	bool monitor;
138
+};
139
+
140
+#define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \
141
+	container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj)
142
+
143
+/* SWICHDEV_OBJ_ID_RING_ROLE_MRP */
144
+struct switchdev_obj_ring_role_mrp {
145
+	struct switchdev_obj obj;
146
+	u8 ring_role;
147
+	u32 ring_id;
148
+};
149
+
150
+#define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \
151
+	container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj)
152
+
153
+struct switchdev_obj_ring_state_mrp {
154
+	struct switchdev_obj obj;
155
+	u8 ring_state;
156
+	u32 ring_id;
157
+};
158
+
159
+#define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \
160
+	container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj)
161
+
162
+/* SWITCHDEV_OBJ_ID_IN_TEST_MRP */
163
+struct switchdev_obj_in_test_mrp {
164
+	struct switchdev_obj obj;
165
+	/* The value is in us and a value of 0 represents to stop */
166
+	u32 interval;
167
+	u32 in_id;
168
+	u32 period;
169
+	u8 max_miss;
170
+};
171
+
172
+#define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \
173
+	container_of((OBJ), struct switchdev_obj_in_test_mrp, obj)
174
+
175
+/* SWICHDEV_OBJ_ID_IN_ROLE_MRP */
176
+struct switchdev_obj_in_role_mrp {
177
+	struct switchdev_obj obj;
178
+	struct net_device *i_port;
179
+	u32 ring_id;
180
+	u16 in_id;
181
+	u8 in_role;
182
+};
183
+
184
+#define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \
185
+	container_of((OBJ), struct switchdev_obj_in_role_mrp, obj)
186
+
187
+struct switchdev_obj_in_state_mrp {
188
+	struct switchdev_obj obj;
189
+	u32 in_id;
190
+	u8 in_state;
191
+};
192
+
193
+#define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \
194
+	container_of((OBJ), struct switchdev_obj_in_state_mrp, obj)
195
+
196
+#endif
115197 
116198 typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
117
-
118
-/**
119
- * struct switchdev_ops - switchdev operations
120
- *
121
- * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
122
- *
123
- * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
124
- *
125
- * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*).
126
- *
127
- * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*).
128
- */
129
-struct switchdev_ops {
130
-	int	(*switchdev_port_attr_get)(struct net_device *dev,
131
-					   struct switchdev_attr *attr);
132
-	int	(*switchdev_port_attr_set)(struct net_device *dev,
133
-					   const struct switchdev_attr *attr,
134
-					   struct switchdev_trans *trans);
135
-	int	(*switchdev_port_obj_add)(struct net_device *dev,
136
-					  const struct switchdev_obj *obj,
137
-					  struct switchdev_trans *trans);
138
-	int	(*switchdev_port_obj_del)(struct net_device *dev,
139
-					  const struct switchdev_obj *obj);
140
-};
141199 
142200 enum switchdev_notifier_type {
143201 	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
....@@ -145,17 +203,44 @@
145203 	SWITCHDEV_FDB_ADD_TO_DEVICE,
146204 	SWITCHDEV_FDB_DEL_TO_DEVICE,
147205 	SWITCHDEV_FDB_OFFLOADED,
206
+	SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
207
+
208
+	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
209
+	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
210
+	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
211
+
212
+	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
213
+	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
214
+	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
215
+	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
216
+	SWITCHDEV_VXLAN_FDB_OFFLOADED,
148217 };
149218 
150219 struct switchdev_notifier_info {
151220 	struct net_device *dev;
221
+	struct netlink_ext_ack *extack;
152222 };
153223 
154224 struct switchdev_notifier_fdb_info {
155225 	struct switchdev_notifier_info info; /* must be first */
156226 	const unsigned char *addr;
157227 	u16 vid;
158
-	bool added_by_user;
228
+	u8 added_by_user:1,
229
+	   offloaded:1;
230
+};
231
+
232
+struct switchdev_notifier_port_obj_info {
233
+	struct switchdev_notifier_info info; /* must be first */
234
+	const struct switchdev_obj *obj;
235
+	struct switchdev_trans *trans;
236
+	bool handled;
237
+};
238
+
239
+struct switchdev_notifier_port_attr_info {
240
+	struct switchdev_notifier_info info; /* must be first */
241
+	const struct switchdev_attr *attr;
242
+	struct switchdev_trans *trans;
243
+	bool handled;
159244 };
160245 
161246 static inline struct net_device *
....@@ -164,39 +249,62 @@
164249 	return info->dev;
165250 }
166251 
252
+static inline struct netlink_ext_ack *
253
+switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
254
+{
255
+	return info->extack;
256
+}
257
+
167258 #ifdef CONFIG_NET_SWITCHDEV
168259 
169260 void switchdev_deferred_process(void);
170
-int switchdev_port_attr_get(struct net_device *dev,
171
-			    struct switchdev_attr *attr);
172261 int switchdev_port_attr_set(struct net_device *dev,
173262 			    const struct switchdev_attr *attr);
174263 int switchdev_port_obj_add(struct net_device *dev,
175
-			   const struct switchdev_obj *obj);
264
+			   const struct switchdev_obj *obj,
265
+			   struct netlink_ext_ack *extack);
176266 int switchdev_port_obj_del(struct net_device *dev,
177267 			   const struct switchdev_obj *obj);
268
+
178269 int register_switchdev_notifier(struct notifier_block *nb);
179270 int unregister_switchdev_notifier(struct notifier_block *nb);
180271 int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
181
-			     struct switchdev_notifier_info *info);
272
+			     struct switchdev_notifier_info *info,
273
+			     struct netlink_ext_ack *extack);
274
+
275
+int register_switchdev_blocking_notifier(struct notifier_block *nb);
276
+int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
277
+int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
278
+				      struct switchdev_notifier_info *info,
279
+				      struct netlink_ext_ack *extack);
280
+
182281 void switchdev_port_fwd_mark_set(struct net_device *dev,
183282 				 struct net_device *group_dev,
184283 				 bool joining);
185284 
186
-bool switchdev_port_same_parent_id(struct net_device *a,
187
-				   struct net_device *b);
285
+int switchdev_handle_port_obj_add(struct net_device *dev,
286
+			struct switchdev_notifier_port_obj_info *port_obj_info,
287
+			bool (*check_cb)(const struct net_device *dev),
288
+			int (*add_cb)(struct net_device *dev,
289
+				      const struct switchdev_obj *obj,
290
+				      struct switchdev_trans *trans,
291
+				      struct netlink_ext_ack *extack));
292
+int switchdev_handle_port_obj_del(struct net_device *dev,
293
+			struct switchdev_notifier_port_obj_info *port_obj_info,
294
+			bool (*check_cb)(const struct net_device *dev),
295
+			int (*del_cb)(struct net_device *dev,
296
+				      const struct switchdev_obj *obj));
188297 
189
-#define SWITCHDEV_SET_OPS(netdev, ops) ((netdev)->switchdev_ops = (ops))
298
+int switchdev_handle_port_attr_set(struct net_device *dev,
299
+			struct switchdev_notifier_port_attr_info *port_attr_info,
300
+			bool (*check_cb)(const struct net_device *dev),
301
+			int (*set_cb)(struct net_device *dev,
302
+				      const struct switchdev_attr *attr,
303
+				      struct switchdev_trans *trans));
190304 #else
191305 
192306 static inline void switchdev_deferred_process(void)
193307 {
194
-}
195
-
196
-static inline int switchdev_port_attr_get(struct net_device *dev,
197
-					  struct switchdev_attr *attr)
198
-{
199
-	return -EOPNOTSUPP;
200308 }
201309 
202310 static inline int switchdev_port_attr_set(struct net_device *dev,
....@@ -206,7 +314,8 @@
206314 }
207315 
208316 static inline int switchdev_port_obj_add(struct net_device *dev,
209
-					 const struct switchdev_obj *obj)
317
+					 const struct switchdev_obj *obj,
318
+					 struct netlink_ext_ack *extack)
210319 {
211320 	return -EOPNOTSUPP;
212321 }
....@@ -229,19 +338,65 @@
229338 
230339 static inline int call_switchdev_notifiers(unsigned long val,
231340 					   struct net_device *dev,
232
-					   struct switchdev_notifier_info *info)
341
+					   struct switchdev_notifier_info *info,
342
+					   struct netlink_ext_ack *extack)
233343 {
234344 	return NOTIFY_DONE;
235345 }
236346 
237
-static inline bool switchdev_port_same_parent_id(struct net_device *a,
238
-						 struct net_device *b)
347
+static inline int
348
+register_switchdev_blocking_notifier(struct notifier_block *nb)
239349 {
240
-	return false;
350
+	return 0;
241351 }
242352 
243
-#define SWITCHDEV_SET_OPS(netdev, ops) do {} while (0)
353
+static inline int
354
+unregister_switchdev_blocking_notifier(struct notifier_block *nb)
355
+{
356
+	return 0;
357
+}
244358 
359
+static inline int
360
+call_switchdev_blocking_notifiers(unsigned long val,
361
+				  struct net_device *dev,
362
+				  struct switchdev_notifier_info *info,
363
+				  struct netlink_ext_ack *extack)
364
+{
365
+	return NOTIFY_DONE;
366
+}
367
+
368
+static inline int
369
+switchdev_handle_port_obj_add(struct net_device *dev,
370
+			struct switchdev_notifier_port_obj_info *port_obj_info,
371
+			bool (*check_cb)(const struct net_device *dev),
372
+			int (*add_cb)(struct net_device *dev,
373
+				      const struct switchdev_obj *obj,
374
+				      struct switchdev_trans *trans,
375
+				      struct netlink_ext_ack *extack))
376
+{
377
+	return 0;
378
+}
379
+
380
+static inline int
381
+switchdev_handle_port_obj_del(struct net_device *dev,
382
+			struct switchdev_notifier_port_obj_info *port_obj_info,
383
+			bool (*check_cb)(const struct net_device *dev),
384
+			int (*del_cb)(struct net_device *dev,
385
+				      const struct switchdev_obj *obj))
386
+{
387
+	return 0;
388
+}
389
+
390
+static inline int
391
+switchdev_handle_port_attr_set(struct net_device *dev,
392
+			struct switchdev_notifier_port_attr_info *port_attr_info,
393
+			bool (*check_cb)(const struct net_device *dev),
394
+			int (*set_cb)(struct net_device *dev,
395
+				      const struct switchdev_attr *attr,
396
+				      struct switchdev_trans *trans))
397
+{
398
+	return 0;
399
+}
245400 #endif
246401 
247402 #endif /* _LINUX_SWITCHDEV_H_ */