1
2
3
4
5
6
7#ifndef __LINUX_MII_H__
8#define __LINUX_MII_H__
9
10
11#include <linux/if.h>
12#include <uapi/linux/mii.h>
13
14struct ethtool_cmd;
15
16struct mii_if_info {
17 int phy_id;
18 int advertising;
19 int phy_id_mask;
20 int reg_num_mask;
21
22 unsigned int full_duplex : 1;
23 unsigned int force_media : 1;
24 unsigned int supports_gmii : 1;
25
26 struct net_device *dev;
27 int (*mdio_read) (struct net_device *dev, int phy_id, int location);
28 void (*mdio_write) (struct net_device *dev, int phy_id, int location, int val);
29};
30
31extern int mii_link_ok (struct mii_if_info *mii);
32extern int mii_nway_restart (struct mii_if_info *mii);
33extern int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
34extern int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
35extern int mii_check_gmii_support(struct mii_if_info *mii);
36extern void mii_check_link (struct mii_if_info *mii);
37extern unsigned int mii_check_media (struct mii_if_info *mii,
38 unsigned int ok_to_print,
39 unsigned int init_media);
40extern int generic_mii_ioctl(struct mii_if_info *mii_if,
41 struct mii_ioctl_data *mii_data, int cmd,
42 unsigned int *duplex_changed);
43
44
45static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
46{
47 return (struct mii_ioctl_data *) &rq->ifr_ifru;
48}
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64static inline unsigned int mii_nway_result (unsigned int negotiated)
65{
66 unsigned int ret;
67
68 if (negotiated & LPA_100FULL)
69 ret = LPA_100FULL;
70 else if (negotiated & LPA_100BASE4)
71 ret = LPA_100BASE4;
72 else if (negotiated & LPA_100HALF)
73 ret = LPA_100HALF;
74 else if (negotiated & LPA_10FULL)
75 ret = LPA_10FULL;
76 else
77 ret = LPA_10HALF;
78
79 return ret;
80}
81
82
83
84
85
86
87
88
89
90
91static inline unsigned int mii_duplex (unsigned int duplex_lock,
92 unsigned int negotiated)
93{
94 if (duplex_lock)
95 return 1;
96 if (mii_nway_result(negotiated) & LPA_DUPLEX)
97 return 1;
98 return 0;
99}
100
101
102
103
104
105
106
107
108
109static inline u32 ethtool_adv_to_mii_adv_t(u32 ethadv)
110{
111 u32 result = 0;
112
113 if (ethadv & ADVERTISED_10baseT_Half)
114 result |= ADVERTISE_10HALF;
115 if (ethadv & ADVERTISED_10baseT_Full)
116 result |= ADVERTISE_10FULL;
117 if (ethadv & ADVERTISED_100baseT_Half)
118 result |= ADVERTISE_100HALF;
119 if (ethadv & ADVERTISED_100baseT_Full)
120 result |= ADVERTISE_100FULL;
121 if (ethadv & ADVERTISED_Pause)
122 result |= ADVERTISE_PAUSE_CAP;
123 if (ethadv & ADVERTISED_Asym_Pause)
124 result |= ADVERTISE_PAUSE_ASYM;
125
126 return result;
127}
128
129
130
131
132
133
134
135
136static inline u32 mii_adv_to_ethtool_adv_t(u32 adv)
137{
138 u32 result = 0;
139
140 if (adv & ADVERTISE_10HALF)
141 result |= ADVERTISED_10baseT_Half;
142 if (adv & ADVERTISE_10FULL)
143 result |= ADVERTISED_10baseT_Full;
144 if (adv & ADVERTISE_100HALF)
145 result |= ADVERTISED_100baseT_Half;
146 if (adv & ADVERTISE_100FULL)
147 result |= ADVERTISED_100baseT_Full;
148 if (adv & ADVERTISE_PAUSE_CAP)
149 result |= ADVERTISED_Pause;
150 if (adv & ADVERTISE_PAUSE_ASYM)
151 result |= ADVERTISED_Asym_Pause;
152
153 return result;
154}
155
156
157
158
159
160
161
162
163
164static inline u32 ethtool_adv_to_mii_ctrl1000_t(u32 ethadv)
165{
166 u32 result = 0;
167
168 if (ethadv & ADVERTISED_1000baseT_Half)
169 result |= ADVERTISE_1000HALF;
170 if (ethadv & ADVERTISED_1000baseT_Full)
171 result |= ADVERTISE_1000FULL;
172
173 return result;
174}
175
176
177
178
179
180
181
182
183
184static inline u32 mii_ctrl1000_to_ethtool_adv_t(u32 adv)
185{
186 u32 result = 0;
187
188 if (adv & ADVERTISE_1000HALF)
189 result |= ADVERTISED_1000baseT_Half;
190 if (adv & ADVERTISE_1000FULL)
191 result |= ADVERTISED_1000baseT_Full;
192
193 return result;
194}
195
196
197
198
199
200
201
202
203
204static inline u32 mii_lpa_to_ethtool_lpa_t(u32 lpa)
205{
206 u32 result = 0;
207
208 if (lpa & LPA_LPACK)
209 result |= ADVERTISED_Autoneg;
210
211 return result | mii_adv_to_ethtool_adv_t(lpa);
212}
213
214
215
216
217
218
219
220
221
222static inline u32 mii_stat1000_to_ethtool_lpa_t(u32 lpa)
223{
224 u32 result = 0;
225
226 if (lpa & LPA_1000HALF)
227 result |= ADVERTISED_1000baseT_Half;
228 if (lpa & LPA_1000FULL)
229 result |= ADVERTISED_1000baseT_Full;
230
231 return result;
232}
233
234
235
236
237
238
239
240
241
242static inline u32 ethtool_adv_to_mii_adv_x(u32 ethadv)
243{
244 u32 result = 0;
245
246 if (ethadv & ADVERTISED_1000baseT_Half)
247 result |= ADVERTISE_1000XHALF;
248 if (ethadv & ADVERTISED_1000baseT_Full)
249 result |= ADVERTISE_1000XFULL;
250 if (ethadv & ADVERTISED_Pause)
251 result |= ADVERTISE_1000XPAUSE;
252 if (ethadv & ADVERTISED_Asym_Pause)
253 result |= ADVERTISE_1000XPSE_ASYM;
254
255 return result;
256}
257
258
259
260
261
262
263
264
265
266static inline u32 mii_adv_to_ethtool_adv_x(u32 adv)
267{
268 u32 result = 0;
269
270 if (adv & ADVERTISE_1000XHALF)
271 result |= ADVERTISED_1000baseT_Half;
272 if (adv & ADVERTISE_1000XFULL)
273 result |= ADVERTISED_1000baseT_Full;
274 if (adv & ADVERTISE_1000XPAUSE)
275 result |= ADVERTISED_Pause;
276 if (adv & ADVERTISE_1000XPSE_ASYM)
277 result |= ADVERTISED_Asym_Pause;
278
279 return result;
280}
281
282
283
284
285
286
287
288
289
290static inline u32 mii_lpa_to_ethtool_lpa_x(u32 lpa)
291{
292 u32 result = 0;
293
294 if (lpa & LPA_LPACK)
295 result |= ADVERTISED_Autoneg;
296
297 return result | mii_adv_to_ethtool_adv_x(lpa);
298}
299
300
301
302
303
304static inline u16 mii_advertise_flowctrl(int cap)
305{
306 u16 adv = 0;
307
308 if (cap & FLOW_CTRL_RX)
309 adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
310 if (cap & FLOW_CTRL_TX)
311 adv ^= ADVERTISE_PAUSE_ASYM;
312
313 return adv;
314}
315
316
317
318
319
320
321
322
323static inline u8 mii_resolve_flowctrl_fdx(u16 lcladv, u16 rmtadv)
324{
325 u8 cap = 0;
326
327 if (lcladv & rmtadv & ADVERTISE_PAUSE_CAP) {
328 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
329 } else if (lcladv & rmtadv & ADVERTISE_PAUSE_ASYM) {
330 if (lcladv & ADVERTISE_PAUSE_CAP)
331 cap = FLOW_CTRL_RX;
332 else if (rmtadv & ADVERTISE_PAUSE_CAP)
333 cap = FLOW_CTRL_TX;
334 }
335
336 return cap;
337}
338
339#endif
340