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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};
30
31#define DSA_MAX_SWITCHES 4
32#define DSA_MAX_PORTS 12
33
34struct dsa_chip_data {
35
36
37
38 struct device *host_dev;
39 int sw_addr;
40
41
42 int eeprom_len;
43
44
45
46
47
48 struct device_node *of_node;
49
50
51
52
53
54
55
56
57 char *port_names[DSA_MAX_PORTS];
58 struct device_node *port_dn[DSA_MAX_PORTS];
59
60
61
62
63
64
65
66 s8 *rtable;
67};
68
69struct dsa_platform_data {
70
71
72
73
74 struct device *netdev;
75 struct net_device *of_netdev;
76
77
78
79
80
81 int nr_chips;
82 struct dsa_chip_data *chip;
83};
84
85struct packet_type;
86
87struct dsa_switch_tree {
88
89
90
91
92 struct dsa_platform_data *pd;
93
94
95
96
97
98 struct net_device *master_netdev;
99 int (*rcv)(struct sk_buff *skb,
100 struct net_device *dev,
101 struct packet_type *pt,
102 struct net_device *orig_dev);
103 enum dsa_tag_protocol tag_protocol;
104
105
106
107
108 s8 cpu_switch;
109 s8 cpu_port;
110
111
112
113
114 int link_poll_needed;
115 struct work_struct link_poll_work;
116 struct timer_list link_poll_timer;
117
118
119
120
121 struct dsa_switch *ds[DSA_MAX_SWITCHES];
122};
123
124struct dsa_switch {
125
126
127
128 struct dsa_switch_tree *dst;
129 int index;
130
131
132
133
134 enum dsa_tag_protocol tag_protocol;
135
136
137
138
139 struct dsa_chip_data *pd;
140
141
142
143
144 struct dsa_switch_driver *drv;
145
146
147
148
149 struct device *master_dev;
150
151#ifdef CONFIG_NET_DSA_HWMON
152
153
154
155 char hwmon_name[IFNAMSIZ + 8];
156 struct device *hwmon_dev;
157#endif
158
159
160
161
162 u32 dsa_port_mask;
163 u32 phys_port_mask;
164 u32 phys_mii_mask;
165 struct mii_bus *slave_mii_bus;
166 struct net_device *ports[DSA_MAX_PORTS];
167};
168
169static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
170{
171 return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
172}
173
174static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
175{
176 return ds->phys_port_mask & (1 << p) && ds->ports[p];
177}
178
179static inline u8 dsa_upstream_port(struct dsa_switch *ds)
180{
181 struct dsa_switch_tree *dst = ds->dst;
182
183
184
185
186
187
188
189 if (dst->cpu_switch == ds->index)
190 return dst->cpu_port;
191 else
192 return ds->pd->rtable[dst->cpu_switch];
193}
194
195struct dsa_switch_driver {
196 struct list_head list;
197
198 enum dsa_tag_protocol tag_protocol;
199 int priv_size;
200
201
202
203
204 char *(*probe)(struct device *host_dev, int sw_addr);
205 int (*setup)(struct dsa_switch *ds);
206 int (*set_addr)(struct dsa_switch *ds, u8 *addr);
207 u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
208
209
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211
212 int (*phy_read)(struct dsa_switch *ds, int port, int regnum);
213 int (*phy_write)(struct dsa_switch *ds, int port,
214 int regnum, u16 val);
215
216
217
218
219 void (*poll_link)(struct dsa_switch *ds);
220
221
222
223
224 void (*adjust_link)(struct dsa_switch *ds, int port,
225 struct phy_device *phydev);
226 void (*fixed_link_update)(struct dsa_switch *ds, int port,
227 struct fixed_phy_status *st);
228
229
230
231
232 void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
233 void (*get_ethtool_stats)(struct dsa_switch *ds,
234 int port, uint64_t *data);
235 int (*get_sset_count)(struct dsa_switch *ds);
236
237
238
239
240 void (*get_wol)(struct dsa_switch *ds, int port,
241 struct ethtool_wolinfo *w);
242 int (*set_wol)(struct dsa_switch *ds, int port,
243 struct ethtool_wolinfo *w);
244
245
246
247
248 int (*suspend)(struct dsa_switch *ds);
249 int (*resume)(struct dsa_switch *ds);
250
251
252
253
254 int (*port_enable)(struct dsa_switch *ds, int port,
255 struct phy_device *phy);
256 void (*port_disable)(struct dsa_switch *ds, int port,
257 struct phy_device *phy);
258
259
260
261
262 int (*set_eee)(struct dsa_switch *ds, int port,
263 struct phy_device *phydev,
264 struct ethtool_eee *e);
265 int (*get_eee)(struct dsa_switch *ds, int port,
266 struct ethtool_eee *e);
267
268#ifdef CONFIG_NET_DSA_HWMON
269
270 int (*get_temp)(struct dsa_switch *ds, int *temp);
271 int (*get_temp_limit)(struct dsa_switch *ds, int *temp);
272 int (*set_temp_limit)(struct dsa_switch *ds, int temp);
273 int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
274#endif
275
276
277 int (*get_eeprom_len)(struct dsa_switch *ds);
278 int (*get_eeprom)(struct dsa_switch *ds,
279 struct ethtool_eeprom *eeprom, u8 *data);
280 int (*set_eeprom)(struct dsa_switch *ds,
281 struct ethtool_eeprom *eeprom, u8 *data);
282
283
284
285
286 int (*get_regs_len)(struct dsa_switch *ds, int port);
287 void (*get_regs)(struct dsa_switch *ds, int port,
288 struct ethtool_regs *regs, void *p);
289
290
291
292
293 int (*port_join_bridge)(struct dsa_switch *ds, int port,
294 u32 br_port_mask);
295 int (*port_leave_bridge)(struct dsa_switch *ds, int port,
296 u32 br_port_mask);
297 int (*port_stp_update)(struct dsa_switch *ds, int port,
298 u8 state);
299 int (*fdb_add)(struct dsa_switch *ds, int port,
300 const unsigned char *addr, u16 vid);
301 int (*fdb_del)(struct dsa_switch *ds, int port,
302 const unsigned char *addr, u16 vid);
303 int (*fdb_getnext)(struct dsa_switch *ds, int port,
304 unsigned char *addr, bool *is_static);
305};
306
307void register_switch_driver(struct dsa_switch_driver *type);
308void unregister_switch_driver(struct dsa_switch_driver *type);
309struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);
310
311static inline void *ds_to_priv(struct dsa_switch *ds)
312{
313 return (void *)(ds + 1);
314}
315
316static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
317{
318 return dst->rcv != NULL;
319}
320#endif
321