1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
4 * Copyright 2006-2009 Solarflare Communications Inc.
5 */
6#ifndef __LINUX_MDIO_H__
7#define __LINUX_MDIO_H__
8
9#include <uapi/linux/mdio.h>
10#include <linux/bitfield.h>
11#include <linux/mod_devicetable.h>
12
13struct gpio_desc;
14struct mii_bus;
15struct reset_control;
16
17/* Multiple levels of nesting are possible. However typically this is
18 * limited to nested DSA like layer, a MUX layer, and the normal
19 * user. Instead of trying to handle the general case, just define
20 * these cases.
21 */
22enum mdio_mutex_lock_class {
23 MDIO_MUTEX_NORMAL,
24 MDIO_MUTEX_MUX,
25 MDIO_MUTEX_NESTED,
26};
27
28struct mdio_device {
29 struct device dev;
30
31 struct mii_bus *bus;
32 char modalias[MDIO_NAME_SIZE];
33
34 int (*bus_match)(struct device *dev, const struct device_driver *drv);
35 void (*device_free)(struct mdio_device *mdiodev);
36 void (*device_remove)(struct mdio_device *mdiodev);
37
38 /* Bus address of the MDIO device (0-31) */
39 int addr;
40 int flags;
41 int reset_state;
42 struct gpio_desc *reset_gpio;
43 struct reset_control *reset_ctrl;
44 unsigned int reset_assert_delay;
45 unsigned int reset_deassert_delay;
46};
47
48#define to_mdio_device(__dev) container_of_const(__dev, struct mdio_device, dev)
49
50/* struct mdio_driver_common: Common to all MDIO drivers */
51struct mdio_driver_common {
52 struct device_driver driver;
53 int flags;
54};
55#define MDIO_DEVICE_FLAG_PHY 1
56
57#define to_mdio_common_driver(__drv_c) container_of_const(__drv_c, struct mdio_driver_common, \
58 driver)
59
60/* struct mdio_driver: Generic MDIO driver */
61struct mdio_driver {
62 struct mdio_driver_common mdiodrv;
63
64 /*
65 * Called during discovery. Used to set
66 * up device-specific structures, if any
67 */
68 int (*probe)(struct mdio_device *mdiodev);
69
70 /* Clears up any memory if needed */
71 void (*remove)(struct mdio_device *mdiodev);
72
73 /* Quiesces the device on system shutdown, turns off interrupts etc */
74 void (*shutdown)(struct mdio_device *mdiodev);
75};
76
77#define to_mdio_driver(__drv_m) container_of_const(to_mdio_common_driver(__drv_m), \
78 struct mdio_driver, mdiodrv)
79
80/* device driver data */
81static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
82{
83 dev_set_drvdata(dev: &mdio->dev, data);
84}
85
86static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
87{
88 return dev_get_drvdata(dev: &mdio->dev);
89}
90
91void mdio_device_free(struct mdio_device *mdiodev);
92struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
93int mdio_device_register(struct mdio_device *mdiodev);
94void mdio_device_remove(struct mdio_device *mdiodev);
95void mdio_device_reset(struct mdio_device *mdiodev, int value);
96int mdio_driver_register(struct mdio_driver *drv);
97void mdio_driver_unregister(struct mdio_driver *drv);
98int mdio_device_bus_match(struct device *dev, const struct device_driver *drv);
99
100static inline void mdio_device_get(struct mdio_device *mdiodev)
101{
102 get_device(dev: &mdiodev->dev);
103}
104
105static inline void mdio_device_put(struct mdio_device *mdiodev)
106{
107 mdio_device_free(mdiodev);
108}
109
110static inline bool mdio_phy_id_is_c45(int phy_id)
111{
112 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
113}
114
115static inline __u16 mdio_phy_id_prtad(int phy_id)
116{
117 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
118}
119
120static inline __u16 mdio_phy_id_devad(int phy_id)
121{
122 return phy_id & MDIO_PHY_ID_DEVAD;
123}
124
125/**
126 * struct mdio_if_info - Ethernet controller MDIO interface
127 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
128 * @mmds: Mask of MMDs expected to be present in the PHY. This must be
129 * non-zero unless @prtad = %MDIO_PRTAD_NONE.
130 * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then
131 * MII register access will be passed through with @devad =
132 * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to
133 * commonly used clause 22 registers will be translated into
134 * clause 45 registers.
135 * @dev: Net device structure
136 * @mdio_read: Register read function; returns value or negative error code
137 * @mdio_write: Register write function; returns 0 or negative error code
138 */
139struct mdio_if_info {
140 int prtad;
141 u32 mmds;
142 unsigned mode_support;
143
144 struct net_device *dev;
145 int (*mdio_read)(struct net_device *dev, int prtad, int devad,
146 u16 addr);
147 int (*mdio_write)(struct net_device *dev, int prtad, int devad,
148 u16 addr, u16 val);
149};
150
151#define MDIO_PRTAD_NONE (-1)
152#define MDIO_DEVAD_NONE (-1)
153#define MDIO_SUPPORTS_C22 1
154#define MDIO_SUPPORTS_C45 2
155#define MDIO_EMULATE_C22 4
156
157struct ethtool_cmd;
158struct ethtool_pauseparam;
159extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
160extern int mdio_set_flag(const struct mdio_if_info *mdio,
161 int prtad, int devad, u16 addr, int mask,
162 bool sense);
163extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
164extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
165extern void
166mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
167 struct ethtool_link_ksettings *cmd,
168 u32 npage_adv, u32 npage_lpa);
169
170/**
171 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
172 * @mdio: MDIO interface
173 * @cmd: Ethtool request structure
174 *
175 * Since the CSRs for auto-negotiation using next pages are not fully
176 * standardised, this function does not attempt to decode them. Use
177 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
178 * from next pages.
179 */
180static inline void
181mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
182 struct ethtool_link_ksettings *cmd)
183{
184 mdio45_ethtool_ksettings_get_npage(mdio, cmd, npage_adv: 0, npage_lpa: 0);
185}
186
187extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
188 struct mii_ioctl_data *mii_data, int cmd);
189
190/**
191 * mmd_eee_cap_to_ethtool_sup_t
192 * @eee_cap: value of the MMD EEE Capability register
193 *
194 * A small helper function that translates MMD EEE Capability (3.20) bits
195 * to ethtool supported settings.
196 */
197static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
198{
199 u32 supported = 0;
200
201 if (eee_cap & MDIO_EEE_100TX)
202 supported |= SUPPORTED_100baseT_Full;
203 if (eee_cap & MDIO_EEE_1000T)
204 supported |= SUPPORTED_1000baseT_Full;
205 if (eee_cap & MDIO_EEE_10GT)
206 supported |= SUPPORTED_10000baseT_Full;
207 if (eee_cap & MDIO_EEE_1000KX)
208 supported |= SUPPORTED_1000baseKX_Full;
209 if (eee_cap & MDIO_EEE_10GKX4)
210 supported |= SUPPORTED_10000baseKX4_Full;
211 if (eee_cap & MDIO_EEE_10GKR)
212 supported |= SUPPORTED_10000baseKR_Full;
213
214 return supported;
215}
216
217/**
218 * mmd_eee_adv_to_ethtool_adv_t
219 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
220 *
221 * A small helper function that translates the MMD EEE Advertisment (7.60)
222 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
223 * settings.
224 */
225static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
226{
227 u32 adv = 0;
228
229 if (eee_adv & MDIO_EEE_100TX)
230 adv |= ADVERTISED_100baseT_Full;
231 if (eee_adv & MDIO_EEE_1000T)
232 adv |= ADVERTISED_1000baseT_Full;
233 if (eee_adv & MDIO_EEE_10GT)
234 adv |= ADVERTISED_10000baseT_Full;
235 if (eee_adv & MDIO_EEE_1000KX)
236 adv |= ADVERTISED_1000baseKX_Full;
237 if (eee_adv & MDIO_EEE_10GKX4)
238 adv |= ADVERTISED_10000baseKX4_Full;
239 if (eee_adv & MDIO_EEE_10GKR)
240 adv |= ADVERTISED_10000baseKR_Full;
241
242 return adv;
243}
244
245/**
246 * ethtool_adv_to_mmd_eee_adv_t
247 * @adv: the ethtool advertisement settings
248 *
249 * A small helper function that translates ethtool advertisement settings
250 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
251 * MMD EEE Link Partner Ability (7.61) registers.
252 */
253static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
254{
255 u16 reg = 0;
256
257 if (adv & ADVERTISED_100baseT_Full)
258 reg |= MDIO_EEE_100TX;
259 if (adv & ADVERTISED_1000baseT_Full)
260 reg |= MDIO_EEE_1000T;
261 if (adv & ADVERTISED_10000baseT_Full)
262 reg |= MDIO_EEE_10GT;
263 if (adv & ADVERTISED_1000baseKX_Full)
264 reg |= MDIO_EEE_1000KX;
265 if (adv & ADVERTISED_10000baseKX4_Full)
266 reg |= MDIO_EEE_10GKX4;
267 if (adv & ADVERTISED_10000baseKR_Full)
268 reg |= MDIO_EEE_10GKR;
269
270 return reg;
271}
272
273/**
274 * linkmode_adv_to_mii_10gbt_adv_t
275 * @advertising: the linkmode advertisement settings
276 *
277 * A small helper function that translates linkmode advertisement
278 * settings to phy autonegotiation advertisements for the C45
279 * 10GBASE-T AN CONTROL (7.32) register.
280 */
281static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
282{
283 u32 result = 0;
284
285 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
286 advertising))
287 result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
288 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
289 advertising))
290 result |= MDIO_AN_10GBT_CTRL_ADV5G;
291 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
292 advertising))
293 result |= MDIO_AN_10GBT_CTRL_ADV10G;
294
295 return result;
296}
297
298/**
299 * mii_10gbt_stat_mod_linkmode_lpa_t
300 * @advertising: target the linkmode advertisement settings
301 * @lpa: value of the C45 10GBASE-T AN STATUS register
302 *
303 * A small helper function that translates C45 10GBASE-T AN STATUS register bits
304 * to linkmode advertisement settings. Other bits in advertising aren't changed.
305 */
306static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
307 u32 lpa)
308{
309 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
310 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
311 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
312 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
313 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
314 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
315}
316
317/**
318 * mii_t1_adv_l_mod_linkmode_t
319 * @advertising: target the linkmode advertisement settings
320 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register
321 *
322 * A small helper function that translates BASE-T1 Autonegotiation
323 * Advertisement [15:0] Register bits to linkmode advertisement settings.
324 * Other bits in advertising aren't changed.
325 */
326static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa)
327{
328 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising,
329 lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP);
330 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising,
331 lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM);
332}
333
334/**
335 * mii_t1_adv_m_mod_linkmode_t
336 * @advertising: target the linkmode advertisement settings
337 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register
338 *
339 * A small helper function that translates BASE-T1 Autonegotiation
340 * Advertisement [31:16] Register bits to linkmode advertisement settings.
341 * Other bits in advertising aren't changed.
342 */
343static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa)
344{
345 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
346 advertising, lpa & MDIO_AN_T1_ADV_M_B10L);
347 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
348 advertising, lpa & MDIO_AN_T1_ADV_M_100BT1);
349 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT,
350 advertising, lpa & MDIO_AN_T1_ADV_M_1000BT1);
351}
352
353/**
354 * linkmode_adv_to_mii_t1_adv_l_t
355 * @advertising: the linkmode advertisement settings
356 *
357 * A small helper function that translates linkmode advertisement
358 * settings to phy autonegotiation advertisements for the
359 * BASE-T1 Autonegotiation Advertisement [15:0] Register.
360 */
361static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising)
362{
363 u32 result = 0;
364
365 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising))
366 result |= MDIO_AN_T1_ADV_L_PAUSE_CAP;
367 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising))
368 result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM;
369
370 return result;
371}
372
373/**
374 * linkmode_adv_to_mii_t1_adv_m_t
375 * @advertising: the linkmode advertisement settings
376 *
377 * A small helper function that translates linkmode advertisement
378 * settings to phy autonegotiation advertisements for the
379 * BASE-T1 Autonegotiation Advertisement [31:16] Register.
380 */
381static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising)
382{
383 u32 result = 0;
384
385 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising))
386 result |= MDIO_AN_T1_ADV_M_B10L;
387 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT, advertising))
388 result |= MDIO_AN_T1_ADV_M_100BT1;
389 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT, advertising))
390 result |= MDIO_AN_T1_ADV_M_1000BT1;
391
392 return result;
393}
394
395/**
396 * mii_eee_cap1_mod_linkmode_t()
397 * @adv: target the linkmode advertisement settings
398 * @val: register value
399 *
400 * A function that translates value of following registers to the linkmode:
401 * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20)
402 * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60)
403 * IEEE 802.3-2018 45.2.7.14 "EEE link partner ability 1" register (7.61)
404 */
405static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
406{
407 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
408 adv, val & MDIO_EEE_100TX);
409 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
410 adv, val & MDIO_EEE_1000T);
411 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
412 adv, val & MDIO_EEE_10GT);
413 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
414 adv, val & MDIO_EEE_1000KX);
415 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
416 adv, val & MDIO_EEE_10GKX4);
417 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
418 adv, val & MDIO_EEE_10GKR);
419}
420
421/**
422 * mii_eee_cap2_mod_linkmode_sup_t()
423 * @adv: target the linkmode settings
424 * @val: register value
425 *
426 * A function that translates value of following registers to the linkmode:
427 * IEEE 802.3-2022 45.2.3.11 "EEE control and capability 2" register (3.21)
428 */
429static inline void mii_eee_cap2_mod_linkmode_sup_t(unsigned long *adv, u32 val)
430{
431 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
432 adv, val & MDIO_EEE_2_5GT);
433 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
434 adv, val & MDIO_EEE_5GT);
435}
436
437/**
438 * mii_eee_cap2_mod_linkmode_adv_t()
439 * @adv: target the linkmode advertisement settings
440 * @val: register value
441 *
442 * A function that translates value of following registers to the linkmode:
443 * IEEE 802.3-2022 45.2.7.16 "EEE advertisement 2" register (7.62)
444 * IEEE 802.3-2022 45.2.7.17 "EEE link partner ability 2" register (7.63)
445 * Note: Currently this function is the same as mii_eee_cap2_mod_linkmode_sup_t.
446 * For certain, not yet supported, modes however the bits differ.
447 * Therefore create separate functions already.
448 */
449static inline void mii_eee_cap2_mod_linkmode_adv_t(unsigned long *adv, u32 val)
450{
451 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
452 adv, val & MDIO_EEE_2_5GT);
453 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
454 adv, val & MDIO_EEE_5GT);
455}
456
457/**
458 * linkmode_to_mii_eee_cap1_t()
459 * @adv: the linkmode advertisement settings
460 *
461 * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13
462 * "EEE advertisement 1" register (7.60)
463 */
464static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
465{
466 u32 result = 0;
467
468 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv))
469 result |= MDIO_EEE_100TX;
470 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv))
471 result |= MDIO_EEE_1000T;
472 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv))
473 result |= MDIO_EEE_10GT;
474 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv))
475 result |= MDIO_EEE_1000KX;
476 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv))
477 result |= MDIO_EEE_10GKX4;
478 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv))
479 result |= MDIO_EEE_10GKR;
480
481 return result;
482}
483
484/**
485 * linkmode_to_mii_eee_cap2_t()
486 * @adv: the linkmode advertisement settings
487 *
488 * A function that translates linkmode to value for IEEE 802.3-2022 45.2.7.16
489 * "EEE advertisement 2" register (7.62)
490 */
491static inline u32 linkmode_to_mii_eee_cap2_t(unsigned long *adv)
492{
493 u32 result = 0;
494
495 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, adv))
496 result |= MDIO_EEE_2_5GT;
497 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, adv))
498 result |= MDIO_EEE_5GT;
499
500 return result;
501}
502
503/**
504 * mii_10base_t1_adv_mod_linkmode_t()
505 * @adv: linkmode advertisement settings
506 * @val: register value
507 *
508 * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status"
509 * register (7.527) value to the linkmode.
510 */
511static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val)
512{
513 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
514 adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L);
515}
516
517/**
518 * linkmode_adv_to_mii_10base_t1_t()
519 * @adv: linkmode advertisement settings
520 *
521 * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25
522 * "10BASE-T1 AN control" register (7.526) value.
523 */
524static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv)
525{
526 u32 result = 0;
527
528 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv))
529 result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L;
530
531 return result;
532}
533
534/**
535 * mii_c73_mod_linkmode - convert a Clause 73 advertisement to linkmodes
536 * @adv: linkmode advertisement setting
537 * @lpa: array of three u16s containing the advertisement
538 *
539 * Convert an IEEE 802.3 Clause 73 advertisement to ethtool link modes.
540 */
541static inline void mii_c73_mod_linkmode(unsigned long *adv, u16 *lpa)
542{
543 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT,
544 adv, lpa[0] & MDIO_AN_C73_0_PAUSE);
545 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
546 adv, lpa[0] & MDIO_AN_C73_0_ASM_DIR);
547 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
548 adv, lpa[1] & MDIO_AN_C73_1_1000BASE_KX);
549 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
550 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KX4);
551 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
552 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_KR4);
553 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
554 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_CR4);
555 /* 100GBASE_CR10 and 100GBASE_KP4 not implemented */
556 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
557 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_KR4);
558 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
559 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_CR4);
560 /* 25GBASE_R_S not implemented */
561 /* The 25GBASE_R bit can be used for 25Gbase KR or CR modes */
562 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
563 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
564 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
565 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
566 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
567 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KR);
568 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
569 adv, lpa[2] & MDIO_AN_C73_2_2500BASE_KX);
570 /* 5GBASE_KR not implemented */
571}
572
573int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
574int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
575int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
576 u16 set);
577int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
578 u16 mask, u16 set);
579
580int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
581int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
582int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
583int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
584int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
585 u16 set);
586int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
587 u16 mask, u16 set);
588int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
589int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
590int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad,
591 u32 regnum);
592int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
593 u16 val);
594int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
595 u16 val);
596int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad,
597 u32 regnum, u16 val);
598int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum,
599 u16 mask, u16 set);
600
601int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad,
602 u32 regnum, u16 mask, u16 set);
603
604static inline int __mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
605{
606 return __mdiobus_read(bus: mdiodev->bus, addr: mdiodev->addr, regnum);
607}
608
609static inline int __mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
610 u16 val)
611{
612 return __mdiobus_write(bus: mdiodev->bus, addr: mdiodev->addr, regnum, val);
613}
614
615static inline int __mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
616 u16 mask, u16 set)
617{
618 return __mdiobus_modify(bus: mdiodev->bus, addr: mdiodev->addr, regnum, mask, set);
619}
620
621static inline int __mdiodev_modify_changed(struct mdio_device *mdiodev,
622 u32 regnum, u16 mask, u16 set)
623{
624 return __mdiobus_modify_changed(bus: mdiodev->bus, addr: mdiodev->addr, regnum,
625 mask, set);
626}
627
628static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
629{
630 return mdiobus_read(bus: mdiodev->bus, addr: mdiodev->addr, regnum);
631}
632
633static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
634 u16 val)
635{
636 return mdiobus_write(bus: mdiodev->bus, addr: mdiodev->addr, regnum, val);
637}
638
639static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
640 u16 mask, u16 set)
641{
642 return mdiobus_modify(bus: mdiodev->bus, addr: mdiodev->addr, regnum, mask, set);
643}
644
645static inline int mdiodev_modify_changed(struct mdio_device *mdiodev,
646 u32 regnum, u16 mask, u16 set)
647{
648 return mdiobus_modify_changed(bus: mdiodev->bus, addr: mdiodev->addr, regnum,
649 mask, set);
650}
651
652static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad,
653 u32 regnum, u16 mask, u16 set)
654{
655 return mdiobus_c45_modify(bus: mdiodev->bus, addr: mdiodev->addr, devad, regnum,
656 mask, set);
657}
658
659static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev,
660 int devad, u32 regnum, u16 mask,
661 u16 set)
662{
663 return mdiobus_c45_modify_changed(bus: mdiodev->bus, addr: mdiodev->addr, devad,
664 regnum, mask, set);
665}
666
667static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad,
668 u16 regnum)
669{
670 return mdiobus_c45_read(bus: mdiodev->bus, addr: mdiodev->addr, devad, regnum);
671}
672
673static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad,
674 u16 regnum, u16 val)
675{
676 return mdiobus_c45_write(bus: mdiodev->bus, addr: mdiodev->addr, devad, regnum,
677 val);
678}
679
680int mdiobus_register_device(struct mdio_device *mdiodev);
681int mdiobus_unregister_device(struct mdio_device *mdiodev);
682bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
683struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);
684
685/**
686 * mdio_module_driver() - Helper macro for registering mdio drivers
687 * @_mdio_driver: driver to register
688 *
689 * Helper macro for MDIO drivers which do not do anything special in module
690 * init/exit. Each module may only use this macro once, and calling it
691 * replaces module_init() and module_exit().
692 */
693#define mdio_module_driver(_mdio_driver) \
694static int __init mdio_module_init(void) \
695{ \
696 return mdio_driver_register(&_mdio_driver); \
697} \
698module_init(mdio_module_init); \
699static void __exit mdio_module_exit(void) \
700{ \
701 mdio_driver_unregister(&_mdio_driver); \
702} \
703module_exit(mdio_module_exit)
704
705#endif /* __LINUX_MDIO_H__ */
706

source code of linux/include/linux/mdio.h

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