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11#ifndef __LINUX_NET_DSA_H
12#define __LINUX_NET_DSA_H
13
14#include <linux/if_ether.h>
15#include <linux/list.h>
16#include <linux/timer.h>
17#include <linux/workqueue.h>
18#include <linux/of.h>
19#include <linux/phy.h>
20#include <linux/phy_fixed.h>
21#include <linux/ethtool.h>
22
23enum dsa_tag_protocol {
24 DSA_TAG_PROTO_NONE = 0,
25 DSA_TAG_PROTO_DSA,
26 DSA_TAG_PROTO_TRAILER,
27 DSA_TAG_PROTO_EDSA,
28 DSA_TAG_PROTO_BRCM,
29 DSA_TAG_PROTO_QCA,
30 DSA_TAG_LAST,
31};
32
33#define DSA_MAX_SWITCHES 4
34#define DSA_MAX_PORTS 12
35
36#define DSA_RTABLE_NONE -1
37
38struct dsa_chip_data {
39
40
41
42 struct device *host_dev;
43 int sw_addr;
44
45
46 int eeprom_len;
47
48
49
50
51
52 struct device_node *of_node;
53
54
55
56
57
58
59
60
61 char *port_names[DSA_MAX_PORTS];
62 struct device_node *port_dn[DSA_MAX_PORTS];
63
64
65
66
67
68
69 s8 rtable[DSA_MAX_SWITCHES];
70};
71
72struct dsa_platform_data {
73
74
75
76
77 struct device *netdev;
78 struct net_device *of_netdev;
79
80
81
82
83
84 int nr_chips;
85 struct dsa_chip_data *chip;
86};
87
88struct packet_type;
89
90struct dsa_switch_tree {
91 struct list_head list;
92
93
94 u32 tree;
95
96
97 struct kref refcount;
98
99
100 bool applied;
101
102
103
104
105
106 struct dsa_platform_data *pd;
107
108
109
110
111
112 struct net_device *master_netdev;
113 int (*rcv)(struct sk_buff *skb,
114 struct net_device *dev,
115 struct packet_type *pt,
116 struct net_device *orig_dev);
117
118
119
120
121 struct ethtool_ops master_ethtool_ops;
122 const struct ethtool_ops *master_orig_ethtool_ops;
123
124
125
126
127 s8 cpu_switch;
128 s8 cpu_port;
129
130
131
132
133 struct dsa_switch *ds[DSA_MAX_SWITCHES];
134
135
136
137
138
139 const struct dsa_device_ops *tag_ops;
140};
141
142struct dsa_port {
143 struct net_device *netdev;
144 struct device_node *dn;
145 unsigned int ageing_time;
146 u8 stp_state;
147};
148
149struct dsa_switch {
150 struct device *dev;
151
152
153
154
155 struct dsa_switch_tree *dst;
156 int index;
157
158
159
160
161
162 void *priv;
163
164
165
166
167 struct dsa_chip_data *cd;
168
169
170
171
172 struct dsa_switch_ops *ops;
173
174
175
176
177
178
179 s8 rtable[DSA_MAX_SWITCHES];
180
181#ifdef CONFIG_NET_DSA_HWMON
182
183
184
185 char hwmon_name[IFNAMSIZ + 8];
186 struct device *hwmon_dev;
187#endif
188
189
190
191
192 struct net_device *master_netdev;
193
194
195
196
197 u32 dsa_port_mask;
198 u32 cpu_port_mask;
199 u32 enabled_port_mask;
200 u32 phys_mii_mask;
201 struct dsa_port ports[DSA_MAX_PORTS];
202 struct mii_bus *slave_mii_bus;
203};
204
205static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
206{
207 return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
208}
209
210static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
211{
212 return !!((ds->dsa_port_mask) & (1 << p));
213}
214
215static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
216{
217 return ds->enabled_port_mask & (1 << p) && ds->ports[p].netdev;
218}
219
220static inline u8 dsa_upstream_port(struct dsa_switch *ds)
221{
222 struct dsa_switch_tree *dst = ds->dst;
223
224
225
226
227
228
229
230 if (dst->cpu_switch == ds->index)
231 return dst->cpu_port;
232 else
233 return ds->rtable[dst->cpu_switch];
234}
235
236struct switchdev_trans;
237struct switchdev_obj;
238struct switchdev_obj_port_fdb;
239struct switchdev_obj_port_mdb;
240struct switchdev_obj_port_vlan;
241
242struct dsa_switch_ops {
243 struct list_head list;
244
245
246
247
248 const char *(*probe)(struct device *dsa_dev,
249 struct device *host_dev, int sw_addr,
250 void **priv);
251
252 enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds);
253
254 int (*setup)(struct dsa_switch *ds);
255 int (*set_addr)(struct dsa_switch *ds, u8 *addr);
256 u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
257
258
259
260
261 int (*phy_read)(struct dsa_switch *ds, int port, int regnum);
262 int (*phy_write)(struct dsa_switch *ds, int port,
263 int regnum, u16 val);
264
265
266
267
268 void (*adjust_link)(struct dsa_switch *ds, int port,
269 struct phy_device *phydev);
270 void (*fixed_link_update)(struct dsa_switch *ds, int port,
271 struct fixed_phy_status *st);
272
273
274
275
276 void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
277 void (*get_ethtool_stats)(struct dsa_switch *ds,
278 int port, uint64_t *data);
279 int (*get_sset_count)(struct dsa_switch *ds);
280
281
282
283
284 void (*get_wol)(struct dsa_switch *ds, int port,
285 struct ethtool_wolinfo *w);
286 int (*set_wol)(struct dsa_switch *ds, int port,
287 struct ethtool_wolinfo *w);
288
289
290
291
292 int (*suspend)(struct dsa_switch *ds);
293 int (*resume)(struct dsa_switch *ds);
294
295
296
297
298 int (*port_enable)(struct dsa_switch *ds, int port,
299 struct phy_device *phy);
300 void (*port_disable)(struct dsa_switch *ds, int port,
301 struct phy_device *phy);
302
303
304
305
306 int (*set_eee)(struct dsa_switch *ds, int port,
307 struct phy_device *phydev,
308 struct ethtool_eee *e);
309 int (*get_eee)(struct dsa_switch *ds, int port,
310 struct ethtool_eee *e);
311
312#ifdef CONFIG_NET_DSA_HWMON
313
314 int (*get_temp)(struct dsa_switch *ds, int *temp);
315 int (*get_temp_limit)(struct dsa_switch *ds, int *temp);
316 int (*set_temp_limit)(struct dsa_switch *ds, int temp);
317 int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
318#endif
319
320
321 int (*get_eeprom_len)(struct dsa_switch *ds);
322 int (*get_eeprom)(struct dsa_switch *ds,
323 struct ethtool_eeprom *eeprom, u8 *data);
324 int (*set_eeprom)(struct dsa_switch *ds,
325 struct ethtool_eeprom *eeprom, u8 *data);
326
327
328
329
330 int (*get_regs_len)(struct dsa_switch *ds, int port);
331 void (*get_regs)(struct dsa_switch *ds, int port,
332 struct ethtool_regs *regs, void *p);
333
334
335
336
337 int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs);
338 int (*port_bridge_join)(struct dsa_switch *ds, int port,
339 struct net_device *bridge);
340 void (*port_bridge_leave)(struct dsa_switch *ds, int port);
341 void (*port_stp_state_set)(struct dsa_switch *ds, int port,
342 u8 state);
343 void (*port_fast_age)(struct dsa_switch *ds, int port);
344
345
346
347
348 int (*port_vlan_filtering)(struct dsa_switch *ds, int port,
349 bool vlan_filtering);
350 int (*port_vlan_prepare)(struct dsa_switch *ds, int port,
351 const struct switchdev_obj_port_vlan *vlan,
352 struct switchdev_trans *trans);
353 void (*port_vlan_add)(struct dsa_switch *ds, int port,
354 const struct switchdev_obj_port_vlan *vlan,
355 struct switchdev_trans *trans);
356 int (*port_vlan_del)(struct dsa_switch *ds, int port,
357 const struct switchdev_obj_port_vlan *vlan);
358 int (*port_vlan_dump)(struct dsa_switch *ds, int port,
359 struct switchdev_obj_port_vlan *vlan,
360 int (*cb)(struct switchdev_obj *obj));
361
362
363
364
365 int (*port_fdb_prepare)(struct dsa_switch *ds, int port,
366 const struct switchdev_obj_port_fdb *fdb,
367 struct switchdev_trans *trans);
368 void (*port_fdb_add)(struct dsa_switch *ds, int port,
369 const struct switchdev_obj_port_fdb *fdb,
370 struct switchdev_trans *trans);
371 int (*port_fdb_del)(struct dsa_switch *ds, int port,
372 const struct switchdev_obj_port_fdb *fdb);
373 int (*port_fdb_dump)(struct dsa_switch *ds, int port,
374 struct switchdev_obj_port_fdb *fdb,
375 int (*cb)(struct switchdev_obj *obj));
376
377
378
379
380 int (*port_mdb_prepare)(struct dsa_switch *ds, int port,
381 const struct switchdev_obj_port_mdb *mdb,
382 struct switchdev_trans *trans);
383 void (*port_mdb_add)(struct dsa_switch *ds, int port,
384 const struct switchdev_obj_port_mdb *mdb,
385 struct switchdev_trans *trans);
386 int (*port_mdb_del)(struct dsa_switch *ds, int port,
387 const struct switchdev_obj_port_mdb *mdb);
388 int (*port_mdb_dump)(struct dsa_switch *ds, int port,
389 struct switchdev_obj_port_mdb *mdb,
390 int (*cb)(struct switchdev_obj *obj));
391};
392
393void register_switch_driver(struct dsa_switch_ops *type);
394void unregister_switch_driver(struct dsa_switch_ops *type);
395struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);
396
397static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
398{
399 return dst->rcv != NULL;
400}
401
402void dsa_unregister_switch(struct dsa_switch *ds);
403int dsa_register_switch(struct dsa_switch *ds, struct device_node *np);
404#ifdef CONFIG_PM_SLEEP
405int dsa_switch_suspend(struct dsa_switch *ds);
406int dsa_switch_resume(struct dsa_switch *ds);
407#else
408static inline int dsa_switch_suspend(struct dsa_switch *ds)
409{
410 return 0;
411}
412static inline int dsa_switch_resume(struct dsa_switch *ds)
413{
414 return 0;
415}
416#endif
417
418#endif
419