1 #ifndef NETDEV_PCS_H
2 #define NETDEV_PCS_H
3 
4 #include <linux/phy.h>
5 #include <linux/spinlock.h>
6 #include <linux/workqueue.h>
7 
8 struct device_node;
9 struct ethtool_cmd;
10 struct fwnode_handle;
11 struct net_device;
12 
13 enum {
14 	MLO_PAUSE_NONE,
15 	MLO_PAUSE_RX = BIT(0),
16 	MLO_PAUSE_TX = BIT(1),
17 	MLO_PAUSE_TXRX_MASK = MLO_PAUSE_TX | MLO_PAUSE_RX,
18 	MLO_PAUSE_AN = BIT(2),
19 
20 	MLO_AN_PHY = 0,	/* Conventional PHY */
21 	MLO_AN_FIXED,	/* Fixed-link mode */
22 	MLO_AN_INBAND,	/* In-band protocol */
23 
24 	MAC_SYM_PAUSE	= BIT(0),
25 	MAC_ASYM_PAUSE	= BIT(1),
26 	MAC_10HD	= BIT(2),
27 	MAC_10FD	= BIT(3),
28 	MAC_10		= MAC_10HD | MAC_10FD,
29 	MAC_100HD	= BIT(4),
30 	MAC_100FD	= BIT(5),
31 	MAC_100		= MAC_100HD | MAC_100FD,
32 	MAC_1000HD	= BIT(6),
33 	MAC_1000FD	= BIT(7),
34 	MAC_1000	= MAC_1000HD | MAC_1000FD,
35 	MAC_2500FD	= BIT(8),
36 	MAC_5000FD	= BIT(9),
37 	MAC_10000FD	= BIT(10),
38 	MAC_20000FD	= BIT(11),
39 	MAC_25000FD	= BIT(12),
40 	MAC_40000FD	= BIT(13),
41 	MAC_50000FD	= BIT(14),
42 	MAC_56000FD	= BIT(15),
43 	MAC_100000FD	= BIT(16),
44 	MAC_200000FD	= BIT(17),
45 	MAC_400000FD	= BIT(18),
46 };
47 
phylink_autoneg_inband(unsigned int mode)48 static inline bool phylink_autoneg_inband(unsigned int mode)
49 {
50 	return mode == MLO_AN_INBAND;
51 }
52 
53 /**
54  * struct phylink_link_state - link state structure
55  * @advertising: ethtool bitmask containing advertised link modes
56  * @lp_advertising: ethtool bitmask containing link partner advertised link
57  *   modes
58  * @interface: link &typedef phy_interface_t mode
59  * @speed: link speed, one of the SPEED_* constants.
60  * @duplex: link duplex mode, one of DUPLEX_* constants.
61  * @pause: link pause state, described by MLO_PAUSE_* constants.
62  * @link: true if the link is up.
63  * @an_enabled: true if autonegotiation is enabled/desired.
64  * @an_complete: true if autonegotiation has completed.
65  */
66 struct phylink_link_state {
67 	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
68 	__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
69 	phy_interface_t interface;
70 	int speed;
71 	int duplex;
72 	int pause;
73 	unsigned int link:1;
74 	unsigned int an_enabled:1;
75 	unsigned int an_complete:1;
76 };
77 
78 enum phylink_op_type {
79 	PHYLINK_NETDEV = 0,
80 	PHYLINK_DEV,
81 };
82 
83 /**
84  * struct phylink_config - PHYLINK configuration structure
85  * @dev: a pointer to a struct device associated with the MAC
86  * @type: operation type of PHYLINK instance
87  * @legacy_pre_march2020: driver has not been updated for March 2020 updates
88  *	(See commit 7cceb599d15d ("net: phylink: avoid mac_config calls")
89  * @poll_fixed_state: if true, starts link_poll,
90  *		      if MAC link is at %MLO_AN_FIXED mode.
91  * @ovr_an_inband: if true, override PCS to MLO_AN_INBAND
92  * @get_fixed_state: callback to execute to determine the fixed link state,
93  *		     if MAC link is at %MLO_AN_FIXED mode.
94  * @supported_interfaces: bitmap describing which PHY_INTERFACE_MODE_xxx
95  *                        are supported by the MAC/PCS.
96  * @mac_capabilities: MAC pause/speed/duplex capabilities.
97  */
98 struct phylink_config {
99 	struct device *dev;
100 	enum phylink_op_type type;
101 	bool legacy_pre_march2020;
102 	bool poll_fixed_state;
103 	bool ovr_an_inband;
104 	void (*get_fixed_state)(struct phylink_config *config,
105 				struct phylink_link_state *state);
106 	DECLARE_PHY_INTERFACE_MASK(supported_interfaces);
107 	unsigned long mac_capabilities;
108 };
109 
110 /**
111  * struct phylink_mac_ops - MAC operations structure.
112  * @validate: Validate and update the link configuration.
113  * @mac_select_pcs: Select a PCS for the interface mode.
114  * @mac_pcs_get_state: Read the current link state from the hardware.
115  * @mac_prepare: prepare for a major reconfiguration of the interface.
116  * @mac_config: configure the MAC for the selected mode and state.
117  * @mac_finish: finish a major reconfiguration of the interface.
118  * @mac_an_restart: restart 802.3z BaseX autonegotiation.
119  * @mac_link_down: take the link down.
120  * @mac_link_up: allow the link to come up.
121  *
122  * The individual methods are described more fully below.
123  */
124 struct phylink_mac_ops {
125 	void (*validate)(struct phylink_config *config,
126 			 unsigned long *supported,
127 			 struct phylink_link_state *state);
128 	struct phylink_pcs *(*mac_select_pcs)(struct phylink_config *config,
129 					      phy_interface_t interface);
130 	void (*mac_pcs_get_state)(struct phylink_config *config,
131 				  struct phylink_link_state *state);
132 	int (*mac_prepare)(struct phylink_config *config, unsigned int mode,
133 			   phy_interface_t iface);
134 	void (*mac_config)(struct phylink_config *config, unsigned int mode,
135 			   const struct phylink_link_state *state);
136 	int (*mac_finish)(struct phylink_config *config, unsigned int mode,
137 			  phy_interface_t iface);
138 	void (*mac_an_restart)(struct phylink_config *config);
139 	void (*mac_link_down)(struct phylink_config *config, unsigned int mode,
140 			      phy_interface_t interface);
141 	void (*mac_link_up)(struct phylink_config *config,
142 			    struct phy_device *phy, unsigned int mode,
143 			    phy_interface_t interface, int speed, int duplex,
144 			    bool tx_pause, bool rx_pause);
145 };
146 
147 #if 0 /* For kernel-doc purposes only. */
148 /**
149  * validate - Validate and update the link configuration
150  * @config: a pointer to a &struct phylink_config.
151  * @supported: ethtool bitmask for supported link modes.
152  * @state: a pointer to a &struct phylink_link_state.
153  *
154  * Clear bits in the @supported and @state->advertising masks that
155  * are not supportable by the MAC.
156  *
157  * Note that the PHY may be able to transform from one connection
158  * technology to another, so, eg, don't clear 1000BaseX just
159  * because the MAC is unable to BaseX mode. This is more about
160  * clearing unsupported speeds and duplex settings. The port modes
161  * should not be cleared; phylink_set_port_modes() will help with this.
162  *
163  * When @config->supported_interfaces has been set, phylink will iterate
164  * over the supported interfaces to determine the full capability of the
165  * MAC. The validation function must not print errors if @state->interface
166  * is set to an unexpected value.
167  *
168  * When @config->supported_interfaces is empty, phylink will call this
169  * function with @state->interface set to %PHY_INTERFACE_MODE_NA, and
170  * expects the MAC driver to return all supported link modes.
171  *
172  * If the @state->interface mode is not supported, then the @supported
173  * mask must be cleared.
174  */
175 void validate(struct phylink_config *config, unsigned long *supported,
176 	      struct phylink_link_state *state);
177 /**
178  * mac_select_pcs: Select a PCS for the interface mode.
179  * @config: a pointer to a &struct phylink_config.
180  * @interface: PHY interface mode for PCS
181  *
182  * Return the &struct phylink_pcs for the specified interface mode, or
183  * NULL if none is required, or an error pointer on error.
184  *
185  * This must not modify any state. It is used to query which PCS should
186  * be used. Phylink will use this during validation to ensure that the
187  * configuration is valid, and when setting a configuration to internally
188  * set the PCS that will be used.
189  */
190 struct phylink_pcs *mac_select_pcs(struct phylink_config *config,
191 				   phy_interface_t interface);
192 
193 /**
194  * mac_pcs_get_state() - Read the current inband link state from the hardware
195  * @config: a pointer to a &struct phylink_config.
196  * @state: a pointer to a &struct phylink_link_state.
197  *
198  * Read the current inband link state from the MAC PCS, reporting the
199  * current speed in @state->speed, duplex mode in @state->duplex, pause
200  * mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
201  * negotiation completion state in @state->an_complete, and link up state
202  * in @state->link. If possible, @state->lp_advertising should also be
203  * populated.
204  *
205  * Note: This is a legacy method. This function will not be called unless
206  * legacy_pre_march2020 is set in &struct phylink_config and there is no
207  * PCS attached.
208  */
209 void mac_pcs_get_state(struct phylink_config *config,
210 		       struct phylink_link_state *state);
211 
212 /**
213  * mac_prepare() - prepare to change the PHY interface mode
214  * @config: a pointer to a &struct phylink_config.
215  * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
216  * @iface: interface mode to switch to
217  *
218  * phylink will call this method at the beginning of a full initialisation
219  * of the link, which includes changing the interface mode or at initial
220  * startup time. It may be called for the current mode. The MAC driver
221  * should perform whatever actions are required, e.g. disabling the
222  * Serdes PHY.
223  *
224  * This will be the first call in the sequence:
225  * - mac_prepare()
226  * - mac_config()
227  * - pcs_config()
228  * - possible pcs_an_restart()
229  * - mac_finish()
230  *
231  * Returns zero on success, or negative errno on failure which will be
232  * reported to the kernel log.
233  */
234 int mac_prepare(struct phylink_config *config, unsigned int mode,
235 		phy_interface_t iface);
236 
237 /**
238  * mac_config() - configure the MAC for the selected mode and state
239  * @config: a pointer to a &struct phylink_config.
240  * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
241  * @state: a pointer to a &struct phylink_link_state.
242  *
243  * Note - not all members of @state are valid.  In particular,
244  * @state->lp_advertising, @state->link, @state->an_complete are never
245  * guaranteed to be correct, and so any mac_config() implementation must
246  * never reference these fields.
247  *
248  * Note: For legacy March 2020 drivers (drivers with legacy_pre_march2020 set
249  * in their &phylnk_config and which don't have a PCS), this function will be
250  * called on each link up event, and to also change the in-band advert. For
251  * non-legacy drivers, it will only be called to reconfigure the MAC for a
252  * "major" change in e.g. interface mode. It will not be called for changes
253  * in speed, duplex or pause modes or to change the in-band advertisement.
254  * In any case, it is strongly preferred that speed, duplex and pause settings
255  * are handled in the mac_link_up() method and not in this method.
256  *
257  * (this requires a rewrite - please refer to mac_link_up() for situations
258  *  where the PCS and MAC are not tightly integrated.)
259  *
260  * In all negotiation modes, as defined by @mode, @state->pause indicates the
261  * pause settings which should be applied as follows. If %MLO_PAUSE_AN is not
262  * set, %MLO_PAUSE_TX and %MLO_PAUSE_RX indicate whether the MAC should send
263  * pause frames and/or act on received pause frames respectively. Otherwise,
264  * the results of in-band negotiation/status from the MAC PCS should be used
265  * to control the MAC pause mode settings.
266  *
267  * The action performed depends on the currently selected mode:
268  *
269  * %MLO_AN_FIXED, %MLO_AN_PHY:
270  *   Configure for non-inband negotiation mode, where the link settings
271  *   are completely communicated via mac_link_up().  The physical link
272  *   protocol from the MAC is specified by @state->interface.
273  *
274  *   @state->advertising may be used, but is not required.
275  *
276  *   Older drivers (prior to the mac_link_up() change) may use @state->speed,
277  *   @state->duplex and @state->pause to configure the MAC, but this is
278  *   deprecated; such drivers should be converted to use mac_link_up().
279  *
280  *   Other members of @state must be ignored.
281  *
282  *   Valid state members: interface, advertising.
283  *   Deprecated state members: speed, duplex, pause.
284  *
285  * %MLO_AN_INBAND:
286  *   place the link in an inband negotiation mode (such as 802.3z
287  *   1000base-X or Cisco SGMII mode depending on the @state->interface
288  *   mode). In both cases, link state management (whether the link
289  *   is up or not) is performed by the MAC, and reported via the
290  *   mac_pcs_get_state() callback. Changes in link state must be made
291  *   by calling phylink_mac_change().
292  *
293  *   Interface mode specific details are mentioned below.
294  *
295  *   If in 802.3z mode, the link speed is fixed, dependent on the
296  *   @state->interface. Duplex and pause modes are negotiated via
297  *   the in-band configuration word. Advertised pause modes are set
298  *   according to the @state->an_enabled and @state->advertising
299  *   flags. Beware of MACs which only support full duplex at gigabit
300  *   and higher speeds.
301  *
302  *   If in Cisco SGMII mode, the link speed and duplex mode are passed
303  *   in the serial bitstream 16-bit configuration word, and the MAC
304  *   should be configured to read these bits and acknowledge the
305  *   configuration word. Nothing is advertised by the MAC. The MAC is
306  *   responsible for reading the configuration word and configuring
307  *   itself accordingly.
308  *
309  *   Valid state members: interface, an_enabled, pause, advertising.
310  *
311  * Implementations are expected to update the MAC to reflect the
312  * requested settings - i.o.w., if nothing has changed between two
313  * calls, no action is expected.  If only flow control settings have
314  * changed, flow control should be updated *without* taking the link
315  * down.  This "update" behaviour is critical to avoid bouncing the
316  * link up status.
317  */
318 void mac_config(struct phylink_config *config, unsigned int mode,
319 		const struct phylink_link_state *state);
320 
321 /**
322  * mac_finish() - finish a to change the PHY interface mode
323  * @config: a pointer to a &struct phylink_config.
324  * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
325  * @iface: interface mode to switch to
326  *
327  * phylink will call this if it called mac_prepare() to allow the MAC to
328  * complete any necessary steps after the MAC and PCS have been configured
329  * for the @mode and @iface. E.g. a MAC driver may wish to re-enable the
330  * Serdes PHY here if it was previously disabled by mac_prepare().
331  *
332  * Returns zero on success, or negative errno on failure which will be
333  * reported to the kernel log.
334  */
335 int mac_finish(struct phylink_config *config, unsigned int mode,
336 		phy_interface_t iface);
337 
338 /**
339  * mac_an_restart() - restart 802.3z BaseX autonegotiation
340  * @config: a pointer to a &struct phylink_config.
341  *
342  * Note: This is a legacy method. This function will not be called unless
343  * legacy_pre_march2020 is set in &struct phylink_config and there is no
344  * PCS attached.
345  */
346 void mac_an_restart(struct phylink_config *config);
347 
348 /**
349  * mac_link_down() - take the link down
350  * @config: a pointer to a &struct phylink_config.
351  * @mode: link autonegotiation mode
352  * @interface: link &typedef phy_interface_t mode
353  *
354  * If @mode is not an in-band negotiation mode (as defined by
355  * phylink_autoneg_inband()), force the link down and disable any
356  * Energy Efficient Ethernet MAC configuration. Interface type
357  * selection must be done in mac_config().
358  */
359 void mac_link_down(struct phylink_config *config, unsigned int mode,
360 		   phy_interface_t interface);
361 
362 /**
363  * mac_link_up() - allow the link to come up
364  * @config: a pointer to a &struct phylink_config.
365  * @phy: any attached phy
366  * @mode: link autonegotiation mode
367  * @interface: link &typedef phy_interface_t mode
368  * @speed: link speed
369  * @duplex: link duplex
370  * @tx_pause: link transmit pause enablement status
371  * @rx_pause: link receive pause enablement status
372  *
373  * Configure the MAC for an established link.
374  *
375  * @speed, @duplex, @tx_pause and @rx_pause indicate the finalised link
376  * settings, and should be used to configure the MAC block appropriately
377  * where these settings are not automatically conveyed from the PCS block,
378  * or if in-band negotiation (as defined by phylink_autoneg_inband(@mode))
379  * is disabled.
380  *
381  * Note that when 802.3z in-band negotiation is in use, it is possible
382  * that the user wishes to override the pause settings, and this should
383  * be allowed when considering the implementation of this method.
384  *
385  * If in-band negotiation mode is disabled, allow the link to come up. If
386  * @phy is non-%NULL, configure Energy Efficient Ethernet by calling
387  * phy_init_eee() and perform appropriate MAC configuration for EEE.
388  * Interface type selection must be done in mac_config().
389  */
390 void mac_link_up(struct phylink_config *config, struct phy_device *phy,
391 		 unsigned int mode, phy_interface_t interface,
392 		 int speed, int duplex, bool tx_pause, bool rx_pause);
393 #endif
394 
395 struct phylink_pcs_ops;
396 
397 /**
398  * struct phylink_pcs - PHYLINK PCS instance
399  * @ops: a pointer to the &struct phylink_pcs_ops structure
400  * @poll: poll the PCS for link changes
401  *
402  * This structure is designed to be embedded within the PCS private data,
403  * and will be passed between phylink and the PCS.
404  */
405 struct phylink_pcs {
406 	const struct phylink_pcs_ops *ops;
407 	bool poll;
408 };
409 
410 /**
411  * struct phylink_pcs_ops - MAC PCS operations structure.
412  * @pcs_validate: validate the link configuration.
413  * @pcs_get_state: read the current MAC PCS link state from the hardware.
414  * @pcs_config: configure the MAC PCS for the selected mode and state.
415  * @pcs_an_restart: restart 802.3z BaseX autonegotiation.
416  * @pcs_link_up: program the PCS for the resolved link configuration
417  *               (where necessary).
418  */
419 struct phylink_pcs_ops {
420 	int (*pcs_validate)(struct phylink_pcs *pcs, unsigned long *supported,
421 			    const struct phylink_link_state *state);
422 	void (*pcs_get_state)(struct phylink_pcs *pcs,
423 			      struct phylink_link_state *state);
424 	int (*pcs_config)(struct phylink_pcs *pcs, unsigned int mode,
425 			  phy_interface_t interface,
426 			  const unsigned long *advertising,
427 			  bool permit_pause_to_mac);
428 	void (*pcs_an_restart)(struct phylink_pcs *pcs);
429 	void (*pcs_link_up)(struct phylink_pcs *pcs, unsigned int mode,
430 			    phy_interface_t interface, int speed, int duplex);
431 };
432 
433 #if 0 /* For kernel-doc purposes only. */
434 /**
435  * pcs_validate() - validate the link configuration.
436  * @pcs: a pointer to a &struct phylink_pcs.
437  * @supported: ethtool bitmask for supported link modes.
438  * @state: a const pointer to a &struct phylink_link_state.
439  *
440  * Validate the interface mode, and advertising's autoneg bit, removing any
441  * media ethtool link modes that would not be supportable from the supported
442  * mask. Phylink will propagate the changes to the advertising mask. See the
443  * &struct phylink_mac_ops validate() method.
444  *
445  * Returns -EINVAL if the interface mode/autoneg mode is not supported.
446  * Returns non-zero positive if the link state can be supported.
447  */
448 int pcs_validate(struct phylink_pcs *pcs, unsigned long *supported,
449 		 const struct phylink_link_state *state);
450 
451 /**
452  * pcs_get_state() - Read the current inband link state from the hardware
453  * @pcs: a pointer to a &struct phylink_pcs.
454  * @state: a pointer to a &struct phylink_link_state.
455  *
456  * Read the current inband link state from the MAC PCS, reporting the
457  * current speed in @state->speed, duplex mode in @state->duplex, pause
458  * mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
459  * negotiation completion state in @state->an_complete, and link up state
460  * in @state->link. If possible, @state->lp_advertising should also be
461  * populated.
462  *
463  * When present, this overrides mac_pcs_get_state() in &struct
464  * phylink_mac_ops.
465  */
466 void pcs_get_state(struct phylink_pcs *pcs,
467 		   struct phylink_link_state *state);
468 
469 /**
470  * pcs_config() - Configure the PCS mode and advertisement
471  * @pcs: a pointer to a &struct phylink_pcs.
472  * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
473  * @interface: interface mode to be used
474  * @advertising: adertisement ethtool link mode mask
475  * @permit_pause_to_mac: permit forwarding pause resolution to MAC
476  *
477  * Configure the PCS for the operating mode, the interface mode, and set
478  * the advertisement mask. @permit_pause_to_mac indicates whether the
479  * hardware may forward the pause mode resolution to the MAC.
480  *
481  * When operating in %MLO_AN_INBAND, inband should always be enabled,
482  * otherwise inband should be disabled.
483  *
484  * For SGMII, there is no advertisement from the MAC side, the PCS should
485  * be programmed to acknowledge the inband word from the PHY.
486  *
487  * For 1000BASE-X, the advertisement should be programmed into the PCS.
488  *
489  * For most 10GBASE-R, there is no advertisement.
490  */
491 int pcs_config(struct phylink_pcs *pcs, unsigned int mode,
492 	       phy_interface_t interface, const unsigned long *advertising,
493 	       bool permit_pause_to_mac);
494 
495 /**
496  * pcs_an_restart() - restart 802.3z BaseX autonegotiation
497  * @pcs: a pointer to a &struct phylink_pcs.
498  *
499  * When PCS ops are present, this overrides mac_an_restart() in &struct
500  * phylink_mac_ops.
501  */
502 void pcs_an_restart(struct phylink_pcs *pcs);
503 
504 /**
505  * pcs_link_up() - program the PCS for the resolved link configuration
506  * @pcs: a pointer to a &struct phylink_pcs.
507  * @mode: link autonegotiation mode
508  * @interface: link &typedef phy_interface_t mode
509  * @speed: link speed
510  * @duplex: link duplex
511  *
512  * This call will be made just before mac_link_up() to inform the PCS of
513  * the resolved link parameters. For example, a PCS operating in SGMII
514  * mode without in-band AN needs to be manually configured for the link
515  * and duplex setting. Otherwise, this should be a no-op.
516  */
517 void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
518 		 phy_interface_t interface, int speed, int duplex);
519 #endif
520 
521 void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface,
522 			   unsigned long mac_capabilities);
523 void phylink_generic_validate(struct phylink_config *config,
524 			      unsigned long *supported,
525 			      struct phylink_link_state *state);
526 
527 struct phylink *phylink_create(struct phylink_config *, struct fwnode_handle *,
528 			       phy_interface_t iface,
529 			       const struct phylink_mac_ops *mac_ops);
530 void phylink_destroy(struct phylink *);
531 
532 int phylink_connect_phy(struct phylink *, struct phy_device *);
533 int phylink_of_phy_connect(struct phylink *, struct device_node *, u32 flags);
534 int phylink_fwnode_phy_connect(struct phylink *pl,
535 			       struct fwnode_handle *fwnode,
536 			       u32 flags);
537 void phylink_disconnect_phy(struct phylink *);
538 
539 void phylink_mac_change(struct phylink *, bool up);
540 
541 void phylink_start(struct phylink *);
542 void phylink_stop(struct phylink *);
543 
544 void phylink_suspend(struct phylink *pl, bool mac_wol);
545 void phylink_resume(struct phylink *pl);
546 
547 void phylink_ethtool_get_wol(struct phylink *, struct ethtool_wolinfo *);
548 int phylink_ethtool_set_wol(struct phylink *, struct ethtool_wolinfo *);
549 
550 int phylink_ethtool_ksettings_get(struct phylink *,
551 				  struct ethtool_link_ksettings *);
552 int phylink_ethtool_ksettings_set(struct phylink *,
553 				  const struct ethtool_link_ksettings *);
554 int phylink_ethtool_nway_reset(struct phylink *);
555 void phylink_ethtool_get_pauseparam(struct phylink *,
556 				    struct ethtool_pauseparam *);
557 int phylink_ethtool_set_pauseparam(struct phylink *,
558 				   struct ethtool_pauseparam *);
559 int phylink_get_eee_err(struct phylink *);
560 int phylink_init_eee(struct phylink *, bool);
561 int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
562 int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);
563 int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
564 int phylink_speed_down(struct phylink *pl, bool sync);
565 int phylink_speed_up(struct phylink *pl);
566 
567 #define phylink_zero(bm) \
568 	bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)
569 #define __phylink_do_bit(op, bm, mode) \
570 	op(ETHTOOL_LINK_MODE_ ## mode ## _BIT, bm)
571 
572 #define phylink_set(bm, mode)	__phylink_do_bit(__set_bit, bm, mode)
573 #define phylink_clear(bm, mode)	__phylink_do_bit(__clear_bit, bm, mode)
574 #define phylink_test(bm, mode)	__phylink_do_bit(test_bit, bm, mode)
575 
576 void phylink_set_port_modes(unsigned long *bits);
577 
578 void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state,
579 				      u16 bmsr, u16 lpa);
580 void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,
581 				   struct phylink_link_state *state);
582 int phylink_mii_c22_pcs_encode_advertisement(phy_interface_t interface,
583 					     const unsigned long *advertising);
584 int phylink_mii_c22_pcs_config(struct mdio_device *pcs, unsigned int mode,
585 			       phy_interface_t interface,
586 			       const unsigned long *advertising);
587 void phylink_mii_c22_pcs_an_restart(struct mdio_device *pcs);
588 
589 void phylink_mii_c45_pcs_get_state(struct mdio_device *pcs,
590 				   struct phylink_link_state *state);
591 
592 void phylink_decode_usxgmii_word(struct phylink_link_state *state,
593 				 uint16_t lpa);
594 #endif
595