1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Framework and drivers for configuring and reading different PHYs
4 * Based on code in sungem_phy.c and (long-removed) gianfar_phy.c
5 *
6 * Author: Andy Fleming
7 *
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
9 */
10
11 #ifndef __PHY_H
12 #define __PHY_H
13
14 #include <linux/compiler.h>
15 #include <linux/spinlock.h>
16 #include <linux/ethtool.h>
17 #include <linux/linkmode.h>
18 #include <linux/netlink.h>
19 #include <linux/mdio.h>
20 #include <linux/mii.h>
21 #include <linux/mii_timestamper.h>
22 #include <linux/module.h>
23 #include <linux/timer.h>
24 #include <linux/workqueue.h>
25 #include <linux/mod_devicetable.h>
26 #include <linux/u64_stats_sync.h>
27 #include <linux/irqreturn.h>
28 #include <linux/iopoll.h>
29 #include <linux/refcount.h>
30
31 #include <linux/atomic.h>
32
33 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
34 SUPPORTED_TP | \
35 SUPPORTED_MII)
36
37 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
38 SUPPORTED_10baseT_Full)
39
40 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
41 SUPPORTED_100baseT_Full)
42
43 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
44 SUPPORTED_1000baseT_Full)
45
46 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init;
47 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init;
48 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init;
49 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init;
50 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init;
51 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init;
52 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init;
53 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
54
55 #define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features)
56 #define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features)
57 #define PHY_GBIT_FEATURES ((unsigned long *)&phy_gbit_features)
58 #define PHY_GBIT_FIBRE_FEATURES ((unsigned long *)&phy_gbit_fibre_features)
59 #define PHY_GBIT_ALL_PORTS_FEATURES ((unsigned long *)&phy_gbit_all_ports_features)
60 #define PHY_10GBIT_FEATURES ((unsigned long *)&phy_10gbit_features)
61 #define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features)
62 #define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features)
63
64 extern const int phy_basic_ports_array[3];
65 extern const int phy_fibre_port_array[1];
66 extern const int phy_all_ports_features_array[7];
67 extern const int phy_10_100_features_array[4];
68 extern const int phy_basic_t1_features_array[2];
69 extern const int phy_gbit_features_array[2];
70 extern const int phy_10gbit_features_array[1];
71
72 /*
73 * Set phydev->irq to PHY_POLL if interrupts are not supported,
74 * or not desired for this PHY. Set to PHY_MAC_INTERRUPT if
75 * the attached MAC driver handles the interrupt
76 */
77 #define PHY_POLL -1
78 #define PHY_MAC_INTERRUPT -2
79
80 #define PHY_IS_INTERNAL 0x00000001
81 #define PHY_RST_AFTER_CLK_EN 0x00000002
82 #define PHY_POLL_CABLE_TEST 0x00000004
83 #define MDIO_DEVICE_IS_PHY 0x80000000
84
85 /**
86 * enum phy_interface_t - Interface Mode definitions
87 *
88 * @PHY_INTERFACE_MODE_NA: Not Applicable - don't touch
89 * @PHY_INTERFACE_MODE_INTERNAL: No interface, MAC and PHY combined
90 * @PHY_INTERFACE_MODE_MII: Median-independent interface
91 * @PHY_INTERFACE_MODE_GMII: Gigabit median-independent interface
92 * @PHY_INTERFACE_MODE_SGMII: Serial gigabit media-independent interface
93 * @PHY_INTERFACE_MODE_TBI: Ten Bit Interface
94 * @PHY_INTERFACE_MODE_REVMII: Reverse Media Independent Interface
95 * @PHY_INTERFACE_MODE_RMII: Reduced Media Independent Interface
96 * @PHY_INTERFACE_MODE_REVRMII: Reduced Media Independent Interface in PHY role
97 * @PHY_INTERFACE_MODE_RGMII: Reduced gigabit media-independent interface
98 * @PHY_INTERFACE_MODE_RGMII_ID: RGMII with Internal RX+TX delay
99 * @PHY_INTERFACE_MODE_RGMII_RXID: RGMII with Internal RX delay
100 * @PHY_INTERFACE_MODE_RGMII_TXID: RGMII with Internal RX delay
101 * @PHY_INTERFACE_MODE_RTBI: Reduced TBI
102 * @PHY_INTERFACE_MODE_SMII: ??? MII
103 * @PHY_INTERFACE_MODE_XGMII: 10 gigabit media-independent interface
104 * @PHY_INTERFACE_MODE_XLGMII:40 gigabit media-independent interface
105 * @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax
106 * @PHY_INTERFACE_MODE_QSGMII: Quad SGMII
107 * @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII
108 * @PHY_INTERFACE_MODE_100BASEX: 100 BaseX
109 * @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX
110 * @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX
111 * @PHY_INTERFACE_MODE_5GBASER: 5G BaseR
112 * @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI
113 * @PHY_INTERFACE_MODE_XAUI: 10 Gigabit Attachment Unit Interface
114 * @PHY_INTERFACE_MODE_10GBASER: 10G BaseR
115 * @PHY_INTERFACE_MODE_25GBASER: 25G BaseR
116 * @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII
117 * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
118 * @PHY_INTERFACE_MODE_MAX: Book keeping
119 *
120 * Describes the interface between the MAC and PHY.
121 */
122 typedef enum {
123 PHY_INTERFACE_MODE_NA,
124 PHY_INTERFACE_MODE_INTERNAL,
125 PHY_INTERFACE_MODE_MII,
126 PHY_INTERFACE_MODE_GMII,
127 PHY_INTERFACE_MODE_SGMII,
128 PHY_INTERFACE_MODE_TBI,
129 PHY_INTERFACE_MODE_REVMII,
130 PHY_INTERFACE_MODE_RMII,
131 PHY_INTERFACE_MODE_REVRMII,
132 PHY_INTERFACE_MODE_RGMII,
133 PHY_INTERFACE_MODE_RGMII_ID,
134 PHY_INTERFACE_MODE_RGMII_RXID,
135 PHY_INTERFACE_MODE_RGMII_TXID,
136 PHY_INTERFACE_MODE_RTBI,
137 PHY_INTERFACE_MODE_SMII,
138 PHY_INTERFACE_MODE_XGMII,
139 PHY_INTERFACE_MODE_XLGMII,
140 PHY_INTERFACE_MODE_MOCA,
141 PHY_INTERFACE_MODE_QSGMII,
142 PHY_INTERFACE_MODE_TRGMII,
143 PHY_INTERFACE_MODE_100BASEX,
144 PHY_INTERFACE_MODE_1000BASEX,
145 PHY_INTERFACE_MODE_2500BASEX,
146 PHY_INTERFACE_MODE_5GBASER,
147 PHY_INTERFACE_MODE_RXAUI,
148 PHY_INTERFACE_MODE_XAUI,
149 /* 10GBASE-R, XFI, SFI - single lane 10G Serdes */
150 PHY_INTERFACE_MODE_10GBASER,
151 PHY_INTERFACE_MODE_25GBASER,
152 PHY_INTERFACE_MODE_USXGMII,
153 /* 10GBASE-KR - with Clause 73 AN */
154 PHY_INTERFACE_MODE_10GKR,
155 PHY_INTERFACE_MODE_MAX,
156 } phy_interface_t;
157
158 /* PHY interface mode bitmap handling */
159 #define DECLARE_PHY_INTERFACE_MASK(name) \
160 DECLARE_BITMAP(name, PHY_INTERFACE_MODE_MAX)
161
phy_interface_zero(unsigned long * intf)162 static inline void phy_interface_zero(unsigned long *intf)
163 {
164 bitmap_zero(intf, PHY_INTERFACE_MODE_MAX);
165 }
166
phy_interface_empty(const unsigned long * intf)167 static inline bool phy_interface_empty(const unsigned long *intf)
168 {
169 return bitmap_empty(intf, PHY_INTERFACE_MODE_MAX);
170 }
171
phy_interface_and(unsigned long * dst,const unsigned long * a,const unsigned long * b)172 static inline void phy_interface_and(unsigned long *dst, const unsigned long *a,
173 const unsigned long *b)
174 {
175 bitmap_and(dst, a, b, PHY_INTERFACE_MODE_MAX);
176 }
177
phy_interface_or(unsigned long * dst,const unsigned long * a,const unsigned long * b)178 static inline void phy_interface_or(unsigned long *dst, const unsigned long *a,
179 const unsigned long *b)
180 {
181 bitmap_or(dst, a, b, PHY_INTERFACE_MODE_MAX);
182 }
183
phy_interface_set_rgmii(unsigned long * intf)184 static inline void phy_interface_set_rgmii(unsigned long *intf)
185 {
186 __set_bit(PHY_INTERFACE_MODE_RGMII, intf);
187 __set_bit(PHY_INTERFACE_MODE_RGMII_ID, intf);
188 __set_bit(PHY_INTERFACE_MODE_RGMII_RXID, intf);
189 __set_bit(PHY_INTERFACE_MODE_RGMII_TXID, intf);
190 }
191
192 /*
193 * phy_supported_speeds - return all speeds currently supported by a PHY device
194 */
195 unsigned int phy_supported_speeds(struct phy_device *phy,
196 unsigned int *speeds,
197 unsigned int size);
198
199 /**
200 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
201 * @interface: enum phy_interface_t value
202 *
203 * Description: maps enum &phy_interface_t defined in this file
204 * into the device tree binding of 'phy-mode', so that Ethernet
205 * device driver can get PHY interface from device tree.
206 */
phy_modes(phy_interface_t interface)207 static inline const char *phy_modes(phy_interface_t interface)
208 {
209 switch (interface) {
210 case PHY_INTERFACE_MODE_NA:
211 return "";
212 case PHY_INTERFACE_MODE_INTERNAL:
213 return "internal";
214 case PHY_INTERFACE_MODE_MII:
215 return "mii";
216 case PHY_INTERFACE_MODE_GMII:
217 return "gmii";
218 case PHY_INTERFACE_MODE_SGMII:
219 return "sgmii";
220 case PHY_INTERFACE_MODE_TBI:
221 return "tbi";
222 case PHY_INTERFACE_MODE_REVMII:
223 return "rev-mii";
224 case PHY_INTERFACE_MODE_RMII:
225 return "rmii";
226 case PHY_INTERFACE_MODE_REVRMII:
227 return "rev-rmii";
228 case PHY_INTERFACE_MODE_RGMII:
229 return "rgmii";
230 case PHY_INTERFACE_MODE_RGMII_ID:
231 return "rgmii-id";
232 case PHY_INTERFACE_MODE_RGMII_RXID:
233 return "rgmii-rxid";
234 case PHY_INTERFACE_MODE_RGMII_TXID:
235 return "rgmii-txid";
236 case PHY_INTERFACE_MODE_RTBI:
237 return "rtbi";
238 case PHY_INTERFACE_MODE_SMII:
239 return "smii";
240 case PHY_INTERFACE_MODE_XGMII:
241 return "xgmii";
242 case PHY_INTERFACE_MODE_XLGMII:
243 return "xlgmii";
244 case PHY_INTERFACE_MODE_MOCA:
245 return "moca";
246 case PHY_INTERFACE_MODE_QSGMII:
247 return "qsgmii";
248 case PHY_INTERFACE_MODE_TRGMII:
249 return "trgmii";
250 case PHY_INTERFACE_MODE_1000BASEX:
251 return "1000base-x";
252 case PHY_INTERFACE_MODE_2500BASEX:
253 return "2500base-x";
254 case PHY_INTERFACE_MODE_5GBASER:
255 return "5gbase-r";
256 case PHY_INTERFACE_MODE_RXAUI:
257 return "rxaui";
258 case PHY_INTERFACE_MODE_XAUI:
259 return "xaui";
260 case PHY_INTERFACE_MODE_10GBASER:
261 return "10gbase-r";
262 case PHY_INTERFACE_MODE_25GBASER:
263 return "25gbase-r";
264 case PHY_INTERFACE_MODE_USXGMII:
265 return "usxgmii";
266 case PHY_INTERFACE_MODE_10GKR:
267 return "10gbase-kr";
268 case PHY_INTERFACE_MODE_100BASEX:
269 return "100base-x";
270 default:
271 return "unknown";
272 }
273 }
274
275
276 #define PHY_INIT_TIMEOUT 100000
277 #define PHY_FORCE_TIMEOUT 10
278
279 #define PHY_MAX_ADDR 32
280
281 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
282 #define PHY_ID_FMT "%s:%02x"
283
284 #define MII_BUS_ID_SIZE 61
285
286 struct device;
287 struct phylink;
288 struct sfp_bus;
289 struct sfp_upstream_ops;
290 struct sk_buff;
291
292 /**
293 * struct mdio_bus_stats - Statistics counters for MDIO busses
294 * @transfers: Total number of transfers, i.e. @writes + @reads
295 * @errors: Number of MDIO transfers that returned an error
296 * @writes: Number of write transfers
297 * @reads: Number of read transfers
298 * @syncp: Synchronisation for incrementing statistics
299 */
300 struct mdio_bus_stats {
301 u64_stats_t transfers;
302 u64_stats_t errors;
303 u64_stats_t writes;
304 u64_stats_t reads;
305 /* Must be last, add new statistics above */
306 struct u64_stats_sync syncp;
307 };
308
309 /**
310 * struct phy_package_shared - Shared information in PHY packages
311 * @addr: Common PHY address used to combine PHYs in one package
312 * @refcnt: Number of PHYs connected to this shared data
313 * @flags: Initialization of PHY package
314 * @priv_size: Size of the shared private data @priv
315 * @priv: Driver private data shared across a PHY package
316 *
317 * Represents a shared structure between different phydev's in the same
318 * package, for example a quad PHY. See phy_package_join() and
319 * phy_package_leave().
320 */
321 struct phy_package_shared {
322 int addr;
323 refcount_t refcnt;
324 unsigned long flags;
325 size_t priv_size;
326
327 /* private data pointer */
328 /* note that this pointer is shared between different phydevs and
329 * the user has to take care of appropriate locking. It is allocated
330 * and freed automatically by phy_package_join() and
331 * phy_package_leave().
332 */
333 void *priv;
334 };
335
336 /* used as bit number in atomic bitops */
337 #define PHY_SHARED_F_INIT_DONE 0
338 #define PHY_SHARED_F_PROBE_DONE 1
339
340 /**
341 * struct mii_bus - Represents an MDIO bus
342 *
343 * @owner: Who owns this device
344 * @name: User friendly name for this MDIO device, or driver name
345 * @id: Unique identifier for this bus, typical from bus hierarchy
346 * @priv: Driver private data
347 *
348 * The Bus class for PHYs. Devices which provide access to
349 * PHYs should register using this structure
350 */
351 struct mii_bus {
352 struct module *owner;
353 const char *name;
354 char id[MII_BUS_ID_SIZE];
355 void *priv;
356 /** @read: Perform a read transfer on the bus */
357 int (*read)(struct mii_bus *bus, int addr, int regnum);
358 /** @write: Perform a write transfer on the bus */
359 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
360 /** @reset: Perform a reset of the bus */
361 int (*reset)(struct mii_bus *bus);
362
363 /** @stats: Statistic counters per device on the bus */
364 struct mdio_bus_stats stats[PHY_MAX_ADDR];
365
366 /**
367 * @mdio_lock: A lock to ensure that only one thing can read/write
368 * the MDIO bus at a time
369 */
370 struct mutex mdio_lock;
371
372 /** @parent: Parent device of this bus */
373 struct device *parent;
374 /** @state: State of bus structure */
375 enum {
376 MDIOBUS_ALLOCATED = 1,
377 MDIOBUS_REGISTERED,
378 MDIOBUS_UNREGISTERED,
379 MDIOBUS_RELEASED,
380 } state;
381
382 /** @dev: Kernel device representation */
383 struct device dev;
384
385 /** @mdio_map: list of all MDIO devices on bus */
386 struct mdio_device *mdio_map[PHY_MAX_ADDR];
387
388 /** @phy_mask: PHY addresses to be ignored when probing */
389 u32 phy_mask;
390
391 /** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */
392 u32 phy_ignore_ta_mask;
393
394 /**
395 * @irq: An array of interrupts, each PHY's interrupt at the index
396 * matching its address
397 */
398 int irq[PHY_MAX_ADDR];
399
400 /** @reset_delay_us: GPIO reset pulse width in microseconds */
401 int reset_delay_us;
402 /** @reset_post_delay_us: GPIO reset deassert delay in microseconds */
403 int reset_post_delay_us;
404 /** @reset_gpiod: Reset GPIO descriptor pointer */
405 struct gpio_desc *reset_gpiod;
406
407 /** @probe_capabilities: bus capabilities, used for probing */
408 enum {
409 MDIOBUS_NO_CAP = 0,
410 MDIOBUS_C22,
411 MDIOBUS_C45,
412 MDIOBUS_C22_C45,
413 } probe_capabilities;
414
415 /** @shared_lock: protect access to the shared element */
416 struct mutex shared_lock;
417
418 /** @shared: shared state across different PHYs */
419 struct phy_package_shared *shared[PHY_MAX_ADDR];
420 };
421 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
422
423 struct mii_bus *mdiobus_alloc_size(size_t size);
424
425 /**
426 * mdiobus_alloc - Allocate an MDIO bus structure
427 *
428 * The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready
429 * for the driver to register the bus.
430 */
mdiobus_alloc(void)431 static inline struct mii_bus *mdiobus_alloc(void)
432 {
433 return mdiobus_alloc_size(0);
434 }
435
436 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
437 int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
438 struct module *owner);
439 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
440 #define devm_mdiobus_register(dev, bus) \
441 __devm_mdiobus_register(dev, bus, THIS_MODULE)
442
443 void mdiobus_unregister(struct mii_bus *bus);
444 void mdiobus_free(struct mii_bus *bus);
445 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
devm_mdiobus_alloc(struct device * dev)446 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
447 {
448 return devm_mdiobus_alloc_size(dev, 0);
449 }
450
451 struct mii_bus *mdio_find_bus(const char *mdio_name);
452 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
453
454 #define PHY_INTERRUPT_DISABLED false
455 #define PHY_INTERRUPT_ENABLED true
456
457 /**
458 * enum phy_state - PHY state machine states:
459 *
460 * @PHY_DOWN: PHY device and driver are not ready for anything. probe
461 * should be called if and only if the PHY is in this state,
462 * given that the PHY device exists.
463 * - PHY driver probe function will set the state to @PHY_READY
464 *
465 * @PHY_READY: PHY is ready to send and receive packets, but the
466 * controller is not. By default, PHYs which do not implement
467 * probe will be set to this state by phy_probe().
468 * - start will set the state to UP
469 *
470 * @PHY_UP: The PHY and attached device are ready to do work.
471 * Interrupts should be started here.
472 * - timer moves to @PHY_NOLINK or @PHY_RUNNING
473 *
474 * @PHY_NOLINK: PHY is up, but not currently plugged in.
475 * - irq or timer will set @PHY_RUNNING if link comes back
476 * - phy_stop moves to @PHY_HALTED
477 *
478 * @PHY_RUNNING: PHY is currently up, running, and possibly sending
479 * and/or receiving packets
480 * - irq or timer will set @PHY_NOLINK if link goes down
481 * - phy_stop moves to @PHY_HALTED
482 *
483 * @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending
484 * is not expected to work, carrier will be indicated as down. PHY will be
485 * poll once per second, or on interrupt for it current state.
486 * Once complete, move to UP to restart the PHY.
487 * - phy_stop aborts the running test and moves to @PHY_HALTED
488 *
489 * @PHY_HALTED: PHY is up, but no polling or interrupts are done. Or
490 * PHY is in an error state.
491 * - phy_start moves to @PHY_UP
492 */
493 enum phy_state {
494 PHY_DOWN = 0,
495 PHY_READY,
496 PHY_HALTED,
497 PHY_UP,
498 PHY_RUNNING,
499 PHY_NOLINK,
500 PHY_CABLETEST,
501 };
502
503 #define MDIO_MMD_NUM 32
504
505 /**
506 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
507 * @devices_in_package: IEEE 802.3 devices in package register value.
508 * @mmds_present: bit vector of MMDs present.
509 * @device_ids: The device identifer for each present device.
510 */
511 struct phy_c45_device_ids {
512 u32 devices_in_package;
513 u32 mmds_present;
514 u32 device_ids[MDIO_MMD_NUM];
515 };
516
517 struct macsec_context;
518 struct macsec_ops;
519
520 /**
521 * struct phy_device - An instance of a PHY
522 *
523 * @mdio: MDIO bus this PHY is on
524 * @drv: Pointer to the driver for this PHY instance
525 * @phy_id: UID for this device found during discovery
526 * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
527 * @is_c45: Set to true if this PHY uses clause 45 addressing.
528 * @is_internal: Set to true if this PHY is internal to a MAC.
529 * @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc.
530 * @is_gigabit_capable: Set to true if PHY supports 1000Mbps
531 * @has_fixups: Set to true if this PHY has fixups/quirks.
532 * @suspended: Set to true if this PHY has been suspended successfully.
533 * @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus.
534 * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
535 * @loopback_enabled: Set true if this PHY has been loopbacked successfully.
536 * @downshifted_rate: Set true if link speed has been downshifted.
537 * @is_on_sfp_module: Set true if PHY is located on an SFP module.
538 * @mac_managed_pm: Set true if MAC driver takes of suspending/resuming PHY
539 * @state: State of the PHY for management purposes
540 * @dev_flags: Device-specific flags used by the PHY driver.
541 *
542 * - Bits [15:0] are free to use by the PHY driver to communicate
543 * driver specific behavior.
544 * - Bits [23:16] are currently reserved for future use.
545 * - Bits [31:24] are reserved for defining generic
546 * PHY driver behavior.
547 * @irq: IRQ number of the PHY's interrupt (-1 if none)
548 * @phy_timer: The timer for handling the state machine
549 * @phylink: Pointer to phylink instance for this PHY
550 * @sfp_bus_attached: Flag indicating whether the SFP bus has been attached
551 * @sfp_bus: SFP bus attached to this PHY's fiber port
552 * @attached_dev: The attached enet driver's device instance ptr
553 * @adjust_link: Callback for the enet controller to respond to changes: in the
554 * link state.
555 * @phy_link_change: Callback for phylink for notification of link change
556 * @macsec_ops: MACsec offloading ops.
557 *
558 * @speed: Current link speed
559 * @duplex: Current duplex
560 * @port: Current port
561 * @pause: Current pause
562 * @asym_pause: Current asymmetric pause
563 * @supported: Combined MAC/PHY supported linkmodes
564 * @advertising: Currently advertised linkmodes
565 * @adv_old: Saved advertised while power saving for WoL
566 * @lp_advertising: Current link partner advertised linkmodes
567 * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
568 * @autoneg: Flag autoneg being used
569 * @link: Current link state
570 * @autoneg_complete: Flag auto negotiation of the link has completed
571 * @mdix: Current crossover
572 * @mdix_ctrl: User setting of crossover
573 * @interrupts: Flag interrupts have been enabled
574 * @interface: enum phy_interface_t value
575 * @skb: Netlink message for cable diagnostics
576 * @nest: Netlink nest used for cable diagnostics
577 * @ehdr: nNtlink header for cable diagnostics
578 * @phy_led_triggers: Array of LED triggers
579 * @phy_num_led_triggers: Number of triggers in @phy_led_triggers
580 * @led_link_trigger: LED trigger for link up/down
581 * @last_triggered: last LED trigger for link speed
582 * @master_slave_set: User requested master/slave configuration
583 * @master_slave_get: Current master/slave advertisement
584 * @master_slave_state: Current master/slave configuration
585 * @mii_ts: Pointer to time stamper callbacks
586 * @lock: Mutex for serialization access to PHY
587 * @state_queue: Work queue for state machine
588 * @shared: Pointer to private data shared by phys in one package
589 * @priv: Pointer to driver private data
590 *
591 * interrupts currently only supports enabled or disabled,
592 * but could be changed in the future to support enabling
593 * and disabling specific interrupts
594 *
595 * Contains some infrastructure for polling and interrupt
596 * handling, as well as handling shifts in PHY hardware state
597 */
598 struct phy_device {
599 struct mdio_device mdio;
600
601 /* Information about the PHY type */
602 /* And management functions */
603 struct phy_driver *drv;
604
605 u32 phy_id;
606
607 struct phy_c45_device_ids c45_ids;
608 unsigned is_c45:1;
609 unsigned is_internal:1;
610 unsigned is_pseudo_fixed_link:1;
611 unsigned is_gigabit_capable:1;
612 unsigned has_fixups:1;
613 unsigned suspended:1;
614 unsigned suspended_by_mdio_bus:1;
615 unsigned sysfs_links:1;
616 unsigned loopback_enabled:1;
617 unsigned downshifted_rate:1;
618 unsigned is_on_sfp_module:1;
619 unsigned mac_managed_pm:1;
620
621 unsigned autoneg:1;
622 /* The most recently read link state */
623 unsigned link:1;
624 unsigned autoneg_complete:1;
625
626 /* Interrupts are enabled */
627 unsigned interrupts:1;
628
629 enum phy_state state;
630
631 u32 dev_flags;
632
633 phy_interface_t interface;
634
635 /*
636 * forced speed & duplex (no autoneg)
637 * partner speed & duplex & pause (autoneg)
638 */
639 int speed;
640 int duplex;
641 int port;
642 int pause;
643 int asym_pause;
644 u8 master_slave_get;
645 u8 master_slave_set;
646 u8 master_slave_state;
647
648 /* Union of PHY and Attached devices' supported link modes */
649 /* See ethtool.h for more info */
650 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
651 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
652 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
653 /* used with phy_speed_down */
654 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
655
656 /* Energy efficient ethernet modes which should be prohibited */
657 u32 eee_broken_modes;
658
659 #ifdef CONFIG_LED_TRIGGER_PHY
660 struct phy_led_trigger *phy_led_triggers;
661 unsigned int phy_num_led_triggers;
662 struct phy_led_trigger *last_triggered;
663
664 struct phy_led_trigger *led_link_trigger;
665 #endif
666
667 /*
668 * Interrupt number for this PHY
669 * -1 means no interrupt
670 */
671 int irq;
672
673 /* private data pointer */
674 /* For use by PHYs to maintain extra state */
675 void *priv;
676
677 /* shared data pointer */
678 /* For use by PHYs inside the same package that need a shared state. */
679 struct phy_package_shared *shared;
680
681 /* Reporting cable test results */
682 struct sk_buff *skb;
683 void *ehdr;
684 struct nlattr *nest;
685
686 /* Interrupt and Polling infrastructure */
687 struct delayed_work state_queue;
688
689 struct mutex lock;
690
691 /* This may be modified under the rtnl lock */
692 bool sfp_bus_attached;
693 struct sfp_bus *sfp_bus;
694 struct phylink *phylink;
695 struct net_device *attached_dev;
696 struct mii_timestamper *mii_ts;
697
698 u8 mdix;
699 u8 mdix_ctrl;
700
701 void (*phy_link_change)(struct phy_device *phydev, bool up);
702 void (*adjust_link)(struct net_device *dev);
703
704 #if IS_ENABLED(CONFIG_MACSEC)
705 /* MACsec management functions */
706 const struct macsec_ops *macsec_ops;
707 #endif
708 };
709
to_phy_device(const struct device * dev)710 static inline struct phy_device *to_phy_device(const struct device *dev)
711 {
712 return container_of(to_mdio_device(dev), struct phy_device, mdio);
713 }
714
715 /**
716 * struct phy_tdr_config - Configuration of a TDR raw test
717 *
718 * @first: Distance for first data collection point
719 * @last: Distance for last data collection point
720 * @step: Step between data collection points
721 * @pair: Bitmap of cable pairs to collect data for
722 *
723 * A structure containing possible configuration parameters
724 * for a TDR cable test. The driver does not need to implement
725 * all the parameters, but should report what is actually used.
726 * All distances are in centimeters.
727 */
728 struct phy_tdr_config {
729 u32 first;
730 u32 last;
731 u32 step;
732 s8 pair;
733 };
734 #define PHY_PAIR_ALL -1
735
736 /**
737 * struct phy_driver - Driver structure for a particular PHY type
738 *
739 * @mdiodrv: Data common to all MDIO devices
740 * @phy_id: The result of reading the UID registers of this PHY
741 * type, and ANDing them with the phy_id_mask. This driver
742 * only works for PHYs with IDs which match this field
743 * @name: The friendly name of this PHY type
744 * @phy_id_mask: Defines the important bits of the phy_id
745 * @features: A mandatory list of features (speed, duplex, etc)
746 * supported by this PHY
747 * @flags: A bitfield defining certain other features this PHY
748 * supports (like interrupts)
749 * @driver_data: Static driver data
750 *
751 * All functions are optional. If config_aneg or read_status
752 * are not implemented, the phy core uses the genphy versions.
753 * Note that none of these functions should be called from
754 * interrupt time. The goal is for the bus read/write functions
755 * to be able to block when the bus transaction is happening,
756 * and be freed up by an interrupt (The MPC85xx has this ability,
757 * though it is not currently supported in the driver).
758 */
759 struct phy_driver {
760 struct mdio_driver_common mdiodrv;
761 u32 phy_id;
762 char *name;
763 u32 phy_id_mask;
764 const unsigned long * const features;
765 u32 flags;
766 const void *driver_data;
767
768 /**
769 * @soft_reset: Called to issue a PHY software reset
770 */
771 int (*soft_reset)(struct phy_device *phydev);
772
773 /**
774 * @config_init: Called to initialize the PHY,
775 * including after a reset
776 */
777 int (*config_init)(struct phy_device *phydev);
778
779 /**
780 * @probe: Called during discovery. Used to set
781 * up device-specific structures, if any
782 */
783 int (*probe)(struct phy_device *phydev);
784
785 /**
786 * @get_features: Probe the hardware to determine what
787 * abilities it has. Should only set phydev->supported.
788 */
789 int (*get_features)(struct phy_device *phydev);
790
791 /* PHY Power Management */
792 /** @suspend: Suspend the hardware, saving state if needed */
793 int (*suspend)(struct phy_device *phydev);
794 /** @resume: Resume the hardware, restoring state if needed */
795 int (*resume)(struct phy_device *phydev);
796
797 /**
798 * @config_aneg: Configures the advertisement and resets
799 * autonegotiation if phydev->autoneg is on,
800 * forces the speed to the current settings in phydev
801 * if phydev->autoneg is off
802 */
803 int (*config_aneg)(struct phy_device *phydev);
804
805 /** @aneg_done: Determines the auto negotiation result */
806 int (*aneg_done)(struct phy_device *phydev);
807
808 /** @read_status: Determines the negotiated speed and duplex */
809 int (*read_status)(struct phy_device *phydev);
810
811 /**
812 * @config_intr: Enables or disables interrupts.
813 * It should also clear any pending interrupts prior to enabling the
814 * IRQs and after disabling them.
815 */
816 int (*config_intr)(struct phy_device *phydev);
817
818 /** @handle_interrupt: Override default interrupt handling */
819 irqreturn_t (*handle_interrupt)(struct phy_device *phydev);
820
821 /** @remove: Clears up any memory if needed */
822 void (*remove)(struct phy_device *phydev);
823
824 /**
825 * @match_phy_device: Returns true if this is a suitable
826 * driver for the given phydev. If NULL, matching is based on
827 * phy_id and phy_id_mask.
828 */
829 int (*match_phy_device)(struct phy_device *phydev);
830
831 /**
832 * @set_wol: Some devices (e.g. qnap TS-119P II) require PHY
833 * register changes to enable Wake on LAN, so set_wol is
834 * provided to be called in the ethernet driver's set_wol
835 * function.
836 */
837 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
838
839 /**
840 * @get_wol: See set_wol, but for checking whether Wake on LAN
841 * is enabled.
842 */
843 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
844
845 /**
846 * @link_change_notify: Called to inform a PHY device driver
847 * when the core is about to change the link state. This
848 * callback is supposed to be used as fixup hook for drivers
849 * that need to take action when the link state
850 * changes. Drivers are by no means allowed to mess with the
851 * PHY device structure in their implementations.
852 */
853 void (*link_change_notify)(struct phy_device *dev);
854
855 /**
856 * @read_mmd: PHY specific driver override for reading a MMD
857 * register. This function is optional for PHY specific
858 * drivers. When not provided, the default MMD read function
859 * will be used by phy_read_mmd(), which will use either a
860 * direct read for Clause 45 PHYs or an indirect read for
861 * Clause 22 PHYs. devnum is the MMD device number within the
862 * PHY device, regnum is the register within the selected MMD
863 * device.
864 */
865 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
866
867 /**
868 * @write_mmd: PHY specific driver override for writing a MMD
869 * register. This function is optional for PHY specific
870 * drivers. When not provided, the default MMD write function
871 * will be used by phy_write_mmd(), which will use either a
872 * direct write for Clause 45 PHYs, or an indirect write for
873 * Clause 22 PHYs. devnum is the MMD device number within the
874 * PHY device, regnum is the register within the selected MMD
875 * device. val is the value to be written.
876 */
877 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
878 u16 val);
879
880 /** @read_page: Return the current PHY register page number */
881 int (*read_page)(struct phy_device *dev);
882 /** @write_page: Set the current PHY register page number */
883 int (*write_page)(struct phy_device *dev, int page);
884
885 /**
886 * @module_info: Get the size and type of the eeprom contained
887 * within a plug-in module
888 */
889 int (*module_info)(struct phy_device *dev,
890 struct ethtool_modinfo *modinfo);
891
892 /**
893 * @module_eeprom: Get the eeprom information from the plug-in
894 * module
895 */
896 int (*module_eeprom)(struct phy_device *dev,
897 struct ethtool_eeprom *ee, u8 *data);
898
899 /** @cable_test_start: Start a cable test */
900 int (*cable_test_start)(struct phy_device *dev);
901
902 /** @cable_test_tdr_start: Start a raw TDR cable test */
903 int (*cable_test_tdr_start)(struct phy_device *dev,
904 const struct phy_tdr_config *config);
905
906 /**
907 * @cable_test_get_status: Once per second, or on interrupt,
908 * request the status of the test.
909 */
910 int (*cable_test_get_status)(struct phy_device *dev, bool *finished);
911
912 /* Get statistics from the PHY using ethtool */
913 /** @get_sset_count: Number of statistic counters */
914 int (*get_sset_count)(struct phy_device *dev);
915 /** @get_strings: Names of the statistic counters */
916 void (*get_strings)(struct phy_device *dev, u8 *data);
917 /** @get_stats: Return the statistic counter values */
918 void (*get_stats)(struct phy_device *dev,
919 struct ethtool_stats *stats, u64 *data);
920
921 /* Get and Set PHY tunables */
922 /** @get_tunable: Return the value of a tunable */
923 int (*get_tunable)(struct phy_device *dev,
924 struct ethtool_tunable *tuna, void *data);
925 /** @set_tunable: Set the value of a tunable */
926 int (*set_tunable)(struct phy_device *dev,
927 struct ethtool_tunable *tuna,
928 const void *data);
929 /** @set_loopback: Set the loopback mood of the PHY */
930 int (*set_loopback)(struct phy_device *dev, bool enable);
931 /** @get_sqi: Get the signal quality indication */
932 int (*get_sqi)(struct phy_device *dev);
933 /** @get_sqi_max: Get the maximum signal quality indication */
934 int (*get_sqi_max)(struct phy_device *dev);
935 };
936 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
937 struct phy_driver, mdiodrv)
938
939 #define PHY_ANY_ID "MATCH ANY PHY"
940 #define PHY_ANY_UID 0xffffffff
941
942 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
943 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
944 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
945
946 /* A Structure for boards to register fixups with the PHY Lib */
947 struct phy_fixup {
948 struct list_head list;
949 char bus_id[MII_BUS_ID_SIZE + 3];
950 u32 phy_uid;
951 u32 phy_uid_mask;
952 int (*run)(struct phy_device *phydev);
953 };
954
955 const char *phy_speed_to_str(int speed);
956 const char *phy_duplex_to_str(unsigned int duplex);
957
958 /* A structure for mapping a particular speed and duplex
959 * combination to a particular SUPPORTED and ADVERTISED value
960 */
961 struct phy_setting {
962 u32 speed;
963 u8 duplex;
964 u8 bit;
965 };
966
967 const struct phy_setting *
968 phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
969 bool exact);
970 size_t phy_speeds(unsigned int *speeds, size_t size,
971 unsigned long *mask);
972 void of_set_phy_supported(struct phy_device *phydev);
973 void of_set_phy_eee_broken(struct phy_device *phydev);
974 int phy_speed_down_core(struct phy_device *phydev);
975
976 /**
977 * phy_is_started - Convenience function to check whether PHY is started
978 * @phydev: The phy_device struct
979 */
phy_is_started(struct phy_device * phydev)980 static inline bool phy_is_started(struct phy_device *phydev)
981 {
982 return phydev->state >= PHY_UP;
983 }
984
985 void phy_resolve_aneg_pause(struct phy_device *phydev);
986 void phy_resolve_aneg_linkmode(struct phy_device *phydev);
987 void phy_check_downshift(struct phy_device *phydev);
988
989 /**
990 * phy_read - Convenience function for reading a given PHY register
991 * @phydev: the phy_device struct
992 * @regnum: register number to read
993 *
994 * NOTE: MUST NOT be called from interrupt context,
995 * because the bus read/write functions may wait for an interrupt
996 * to conclude the operation.
997 */
phy_read(struct phy_device * phydev,u32 regnum)998 static inline int phy_read(struct phy_device *phydev, u32 regnum)
999 {
1000 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1001 }
1002
1003 #define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \
1004 timeout_us, sleep_before_read) \
1005 ({ \
1006 int __ret = read_poll_timeout(phy_read, val, (cond) || val < 0, \
1007 sleep_us, timeout_us, sleep_before_read, phydev, regnum); \
1008 if (val < 0) \
1009 __ret = val; \
1010 if (__ret) \
1011 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1012 __ret; \
1013 })
1014
1015
1016 /**
1017 * __phy_read - convenience function for reading a given PHY register
1018 * @phydev: the phy_device struct
1019 * @regnum: register number to read
1020 *
1021 * The caller must have taken the MDIO bus lock.
1022 */
__phy_read(struct phy_device * phydev,u32 regnum)1023 static inline int __phy_read(struct phy_device *phydev, u32 regnum)
1024 {
1025 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1026 }
1027
1028 /**
1029 * phy_write - Convenience function for writing a given PHY register
1030 * @phydev: the phy_device struct
1031 * @regnum: register number to write
1032 * @val: value to write to @regnum
1033 *
1034 * NOTE: MUST NOT be called from interrupt context,
1035 * because the bus read/write functions may wait for an interrupt
1036 * to conclude the operation.
1037 */
phy_write(struct phy_device * phydev,u32 regnum,u16 val)1038 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1039 {
1040 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
1041 }
1042
1043 /**
1044 * __phy_write - Convenience function for writing a given PHY register
1045 * @phydev: the phy_device struct
1046 * @regnum: register number to write
1047 * @val: value to write to @regnum
1048 *
1049 * The caller must have taken the MDIO bus lock.
1050 */
__phy_write(struct phy_device * phydev,u32 regnum,u16 val)1051 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1052 {
1053 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
1054 val);
1055 }
1056
1057 /**
1058 * __phy_modify_changed() - Convenience function for modifying a PHY register
1059 * @phydev: a pointer to a &struct phy_device
1060 * @regnum: register number
1061 * @mask: bit mask of bits to clear
1062 * @set: bit mask of bits to set
1063 *
1064 * Unlocked helper function which allows a PHY register to be modified as
1065 * new register value = (old register value & ~mask) | set
1066 *
1067 * Returns negative errno, 0 if there was no change, and 1 in case of change
1068 */
__phy_modify_changed(struct phy_device * phydev,u32 regnum,u16 mask,u16 set)1069 static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum,
1070 u16 mask, u16 set)
1071 {
1072 return __mdiobus_modify_changed(phydev->mdio.bus, phydev->mdio.addr,
1073 regnum, mask, set);
1074 }
1075
1076 /*
1077 * phy_read_mmd - Convenience function for reading a register
1078 * from an MMD on a given PHY.
1079 */
1080 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1081
1082 /**
1083 * phy_read_mmd_poll_timeout - Periodically poll a PHY register until a
1084 * condition is met or a timeout occurs
1085 *
1086 * @phydev: The phy_device struct
1087 * @devaddr: The MMD to read from
1088 * @regnum: The register on the MMD to read
1089 * @val: Variable to read the register into
1090 * @cond: Break condition (usually involving @val)
1091 * @sleep_us: Maximum time to sleep between reads in us (0
1092 * tight-loops). Should be less than ~20ms since usleep_range
1093 * is used (see Documentation/timers/timers-howto.rst).
1094 * @timeout_us: Timeout in us, 0 means never timeout
1095 * @sleep_before_read: if it is true, sleep @sleep_us before read.
1096 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either
1097 * case, the last read value at @args is stored in @val. Must not
1098 * be called from atomic context if sleep_us or timeout_us are used.
1099 */
1100 #define phy_read_mmd_poll_timeout(phydev, devaddr, regnum, val, cond, \
1101 sleep_us, timeout_us, sleep_before_read) \
1102 ({ \
1103 int __ret = read_poll_timeout(phy_read_mmd, val, (cond) || val < 0, \
1104 sleep_us, timeout_us, sleep_before_read, \
1105 phydev, devaddr, regnum); \
1106 if (val < 0) \
1107 __ret = val; \
1108 if (__ret) \
1109 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1110 __ret; \
1111 })
1112
1113 /*
1114 * __phy_read_mmd - Convenience function for reading a register
1115 * from an MMD on a given PHY.
1116 */
1117 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1118
1119 /*
1120 * phy_write_mmd - Convenience function for writing a register
1121 * on an MMD on a given PHY.
1122 */
1123 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1124
1125 /*
1126 * __phy_write_mmd - Convenience function for writing a register
1127 * on an MMD on a given PHY.
1128 */
1129 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1130
1131 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1132 u16 set);
1133 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1134 u16 set);
1135 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1136 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1137
1138 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1139 u16 mask, u16 set);
1140 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1141 u16 mask, u16 set);
1142 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1143 u16 mask, u16 set);
1144 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1145 u16 mask, u16 set);
1146
1147 /**
1148 * __phy_set_bits - Convenience function for setting bits in a PHY register
1149 * @phydev: the phy_device struct
1150 * @regnum: register number to write
1151 * @val: bits to set
1152 *
1153 * The caller must have taken the MDIO bus lock.
1154 */
__phy_set_bits(struct phy_device * phydev,u32 regnum,u16 val)1155 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1156 {
1157 return __phy_modify(phydev, regnum, 0, val);
1158 }
1159
1160 /**
1161 * __phy_clear_bits - Convenience function for clearing bits in a PHY register
1162 * @phydev: the phy_device struct
1163 * @regnum: register number to write
1164 * @val: bits to clear
1165 *
1166 * The caller must have taken the MDIO bus lock.
1167 */
__phy_clear_bits(struct phy_device * phydev,u32 regnum,u16 val)1168 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
1169 u16 val)
1170 {
1171 return __phy_modify(phydev, regnum, val, 0);
1172 }
1173
1174 /**
1175 * phy_set_bits - Convenience function for setting bits in a PHY register
1176 * @phydev: the phy_device struct
1177 * @regnum: register number to write
1178 * @val: bits to set
1179 */
phy_set_bits(struct phy_device * phydev,u32 regnum,u16 val)1180 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1181 {
1182 return phy_modify(phydev, regnum, 0, val);
1183 }
1184
1185 /**
1186 * phy_clear_bits - Convenience function for clearing bits in a PHY register
1187 * @phydev: the phy_device struct
1188 * @regnum: register number to write
1189 * @val: bits to clear
1190 */
phy_clear_bits(struct phy_device * phydev,u32 regnum,u16 val)1191 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
1192 {
1193 return phy_modify(phydev, regnum, val, 0);
1194 }
1195
1196 /**
1197 * __phy_set_bits_mmd - Convenience function for setting bits in a register
1198 * on MMD
1199 * @phydev: the phy_device struct
1200 * @devad: the MMD containing register to modify
1201 * @regnum: register number to modify
1202 * @val: bits to set
1203 *
1204 * The caller must have taken the MDIO bus lock.
1205 */
__phy_set_bits_mmd(struct phy_device * phydev,int devad,u32 regnum,u16 val)1206 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad,
1207 u32 regnum, u16 val)
1208 {
1209 return __phy_modify_mmd(phydev, devad, regnum, 0, val);
1210 }
1211
1212 /**
1213 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register
1214 * on MMD
1215 * @phydev: the phy_device struct
1216 * @devad: the MMD containing register to modify
1217 * @regnum: register number to modify
1218 * @val: bits to clear
1219 *
1220 * The caller must have taken the MDIO bus lock.
1221 */
__phy_clear_bits_mmd(struct phy_device * phydev,int devad,u32 regnum,u16 val)1222 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1223 u32 regnum, u16 val)
1224 {
1225 return __phy_modify_mmd(phydev, devad, regnum, val, 0);
1226 }
1227
1228 /**
1229 * phy_set_bits_mmd - Convenience function for setting bits in a register
1230 * on MMD
1231 * @phydev: the phy_device struct
1232 * @devad: the MMD containing register to modify
1233 * @regnum: register number to modify
1234 * @val: bits to set
1235 */
phy_set_bits_mmd(struct phy_device * phydev,int devad,u32 regnum,u16 val)1236 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad,
1237 u32 regnum, u16 val)
1238 {
1239 return phy_modify_mmd(phydev, devad, regnum, 0, val);
1240 }
1241
1242 /**
1243 * phy_clear_bits_mmd - Convenience function for clearing bits in a register
1244 * on MMD
1245 * @phydev: the phy_device struct
1246 * @devad: the MMD containing register to modify
1247 * @regnum: register number to modify
1248 * @val: bits to clear
1249 */
phy_clear_bits_mmd(struct phy_device * phydev,int devad,u32 regnum,u16 val)1250 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1251 u32 regnum, u16 val)
1252 {
1253 return phy_modify_mmd(phydev, devad, regnum, val, 0);
1254 }
1255
1256 /**
1257 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
1258 * @phydev: the phy_device struct
1259 *
1260 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
1261 * PHY_MAC_INTERRUPT
1262 */
phy_interrupt_is_valid(struct phy_device * phydev)1263 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
1264 {
1265 return phydev->irq != PHY_POLL && phydev->irq != PHY_MAC_INTERRUPT;
1266 }
1267
1268 /**
1269 * phy_polling_mode - Convenience function for testing whether polling is
1270 * used to detect PHY status changes
1271 * @phydev: the phy_device struct
1272 */
phy_polling_mode(struct phy_device * phydev)1273 static inline bool phy_polling_mode(struct phy_device *phydev)
1274 {
1275 if (phydev->state == PHY_CABLETEST)
1276 if (phydev->drv->flags & PHY_POLL_CABLE_TEST)
1277 return true;
1278
1279 return phydev->irq == PHY_POLL;
1280 }
1281
1282 /**
1283 * phy_has_hwtstamp - Tests whether a PHY time stamp configuration.
1284 * @phydev: the phy_device struct
1285 */
phy_has_hwtstamp(struct phy_device * phydev)1286 static inline bool phy_has_hwtstamp(struct phy_device *phydev)
1287 {
1288 return phydev && phydev->mii_ts && phydev->mii_ts->hwtstamp;
1289 }
1290
1291 /**
1292 * phy_has_rxtstamp - Tests whether a PHY supports receive time stamping.
1293 * @phydev: the phy_device struct
1294 */
phy_has_rxtstamp(struct phy_device * phydev)1295 static inline bool phy_has_rxtstamp(struct phy_device *phydev)
1296 {
1297 return phydev && phydev->mii_ts && phydev->mii_ts->rxtstamp;
1298 }
1299
1300 /**
1301 * phy_has_tsinfo - Tests whether a PHY reports time stamping and/or
1302 * PTP hardware clock capabilities.
1303 * @phydev: the phy_device struct
1304 */
phy_has_tsinfo(struct phy_device * phydev)1305 static inline bool phy_has_tsinfo(struct phy_device *phydev)
1306 {
1307 return phydev && phydev->mii_ts && phydev->mii_ts->ts_info;
1308 }
1309
1310 /**
1311 * phy_has_txtstamp - Tests whether a PHY supports transmit time stamping.
1312 * @phydev: the phy_device struct
1313 */
phy_has_txtstamp(struct phy_device * phydev)1314 static inline bool phy_has_txtstamp(struct phy_device *phydev)
1315 {
1316 return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp;
1317 }
1318
phy_hwtstamp(struct phy_device * phydev,struct ifreq * ifr)1319 static inline int phy_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
1320 {
1321 return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
1322 }
1323
phy_rxtstamp(struct phy_device * phydev,struct sk_buff * skb,int type)1324 static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb,
1325 int type)
1326 {
1327 return phydev->mii_ts->rxtstamp(phydev->mii_ts, skb, type);
1328 }
1329
phy_ts_info(struct phy_device * phydev,struct ethtool_ts_info * tsinfo)1330 static inline int phy_ts_info(struct phy_device *phydev,
1331 struct ethtool_ts_info *tsinfo)
1332 {
1333 return phydev->mii_ts->ts_info(phydev->mii_ts, tsinfo);
1334 }
1335
phy_txtstamp(struct phy_device * phydev,struct sk_buff * skb,int type)1336 static inline void phy_txtstamp(struct phy_device *phydev, struct sk_buff *skb,
1337 int type)
1338 {
1339 phydev->mii_ts->txtstamp(phydev->mii_ts, skb, type);
1340 }
1341
1342 /**
1343 * phy_is_internal - Convenience function for testing if a PHY is internal
1344 * @phydev: the phy_device struct
1345 */
phy_is_internal(struct phy_device * phydev)1346 static inline bool phy_is_internal(struct phy_device *phydev)
1347 {
1348 return phydev->is_internal;
1349 }
1350
1351 /**
1352 * phy_on_sfp - Convenience function for testing if a PHY is on an SFP module
1353 * @phydev: the phy_device struct
1354 */
phy_on_sfp(struct phy_device * phydev)1355 static inline bool phy_on_sfp(struct phy_device *phydev)
1356 {
1357 return phydev->is_on_sfp_module;
1358 }
1359
1360 /**
1361 * phy_interface_mode_is_rgmii - Convenience function for testing if a
1362 * PHY interface mode is RGMII (all variants)
1363 * @mode: the &phy_interface_t enum
1364 */
phy_interface_mode_is_rgmii(phy_interface_t mode)1365 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
1366 {
1367 return mode >= PHY_INTERFACE_MODE_RGMII &&
1368 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
1369 };
1370
1371 /**
1372 * phy_interface_mode_is_8023z() - does the PHY interface mode use 802.3z
1373 * negotiation
1374 * @mode: one of &enum phy_interface_t
1375 *
1376 * Returns true if the PHY interface mode uses the 16-bit negotiation
1377 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding)
1378 */
phy_interface_mode_is_8023z(phy_interface_t mode)1379 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode)
1380 {
1381 return mode == PHY_INTERFACE_MODE_1000BASEX ||
1382 mode == PHY_INTERFACE_MODE_2500BASEX;
1383 }
1384
1385 /**
1386 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
1387 * is RGMII (all variants)
1388 * @phydev: the phy_device struct
1389 */
phy_interface_is_rgmii(struct phy_device * phydev)1390 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
1391 {
1392 return phy_interface_mode_is_rgmii(phydev->interface);
1393 };
1394
1395 /**
1396 * phy_is_pseudo_fixed_link - Convenience function for testing if this
1397 * PHY is the CPU port facing side of an Ethernet switch, or similar.
1398 * @phydev: the phy_device struct
1399 */
phy_is_pseudo_fixed_link(struct phy_device * phydev)1400 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
1401 {
1402 return phydev->is_pseudo_fixed_link;
1403 }
1404
1405 int phy_save_page(struct phy_device *phydev);
1406 int phy_select_page(struct phy_device *phydev, int page);
1407 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret);
1408 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum);
1409 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val);
1410 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum,
1411 u16 mask, u16 set);
1412 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum,
1413 u16 mask, u16 set);
1414
1415 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
1416 bool is_c45,
1417 struct phy_c45_device_ids *c45_ids);
1418 #if IS_ENABLED(CONFIG_PHYLIB)
1419 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
1420 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
1421 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);
1422 struct phy_device *device_phy_find_device(struct device *dev);
1423 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode);
1424 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
1425 int phy_device_register(struct phy_device *phy);
1426 void phy_device_free(struct phy_device *phydev);
1427 #else
fwnode_get_phy_id(struct fwnode_handle * fwnode,u32 * phy_id)1428 static inline int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
1429 {
1430 return 0;
1431 }
1432 static inline
fwnode_mdio_find_device(struct fwnode_handle * fwnode)1433 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
1434 {
1435 return 0;
1436 }
1437
1438 static inline
fwnode_phy_find_device(struct fwnode_handle * phy_fwnode)1439 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode)
1440 {
1441 return NULL;
1442 }
1443
device_phy_find_device(struct device * dev)1444 static inline struct phy_device *device_phy_find_device(struct device *dev)
1445 {
1446 return NULL;
1447 }
1448
1449 static inline
fwnode_get_phy_node(struct fwnode_handle * fwnode)1450 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode)
1451 {
1452 return NULL;
1453 }
1454
1455 static inline
get_phy_device(struct mii_bus * bus,int addr,bool is_c45)1456 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
1457 {
1458 return NULL;
1459 }
1460
phy_device_register(struct phy_device * phy)1461 static inline int phy_device_register(struct phy_device *phy)
1462 {
1463 return 0;
1464 }
1465
phy_device_free(struct phy_device * phydev)1466 static inline void phy_device_free(struct phy_device *phydev) { }
1467 #endif /* CONFIG_PHYLIB */
1468 void phy_device_remove(struct phy_device *phydev);
1469 int phy_get_c45_ids(struct phy_device *phydev);
1470 int phy_init_hw(struct phy_device *phydev);
1471 int phy_suspend(struct phy_device *phydev);
1472 int phy_resume(struct phy_device *phydev);
1473 int __phy_resume(struct phy_device *phydev);
1474 int phy_loopback(struct phy_device *phydev, bool enable);
1475 void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
1476 void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
1477 int phy_sfp_probe(struct phy_device *phydev,
1478 const struct sfp_upstream_ops *ops);
1479 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
1480 phy_interface_t interface);
1481 struct phy_device *phy_find_first(struct mii_bus *bus);
1482 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
1483 u32 flags, phy_interface_t interface);
1484 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
1485 void (*handler)(struct net_device *),
1486 phy_interface_t interface);
1487 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
1488 void (*handler)(struct net_device *),
1489 phy_interface_t interface);
1490 void phy_disconnect(struct phy_device *phydev);
1491 void phy_detach(struct phy_device *phydev);
1492 void phy_start(struct phy_device *phydev);
1493 void phy_stop(struct phy_device *phydev);
1494 int phy_config_aneg(struct phy_device *phydev);
1495 int phy_start_aneg(struct phy_device *phydev);
1496 int phy_aneg_done(struct phy_device *phydev);
1497 int phy_speed_down(struct phy_device *phydev, bool sync);
1498 int phy_speed_up(struct phy_device *phydev);
1499
1500 int phy_restart_aneg(struct phy_device *phydev);
1501 int phy_reset_after_clk_enable(struct phy_device *phydev);
1502
1503 #if IS_ENABLED(CONFIG_PHYLIB)
1504 int phy_start_cable_test(struct phy_device *phydev,
1505 struct netlink_ext_ack *extack);
1506 int phy_start_cable_test_tdr(struct phy_device *phydev,
1507 struct netlink_ext_ack *extack,
1508 const struct phy_tdr_config *config);
1509 #else
1510 static inline
phy_start_cable_test(struct phy_device * phydev,struct netlink_ext_ack * extack)1511 int phy_start_cable_test(struct phy_device *phydev,
1512 struct netlink_ext_ack *extack)
1513 {
1514 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1515 return -EOPNOTSUPP;
1516 }
1517 static inline
phy_start_cable_test_tdr(struct phy_device * phydev,struct netlink_ext_ack * extack,const struct phy_tdr_config * config)1518 int phy_start_cable_test_tdr(struct phy_device *phydev,
1519 struct netlink_ext_ack *extack,
1520 const struct phy_tdr_config *config)
1521 {
1522 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1523 return -EOPNOTSUPP;
1524 }
1525 #endif
1526
1527 int phy_cable_test_result(struct phy_device *phydev, u8 pair, u16 result);
1528 int phy_cable_test_fault_length(struct phy_device *phydev, u8 pair,
1529 u16 cm);
1530
phy_device_reset(struct phy_device * phydev,int value)1531 static inline void phy_device_reset(struct phy_device *phydev, int value)
1532 {
1533 mdio_device_reset(&phydev->mdio, value);
1534 }
1535
1536 #define phydev_err(_phydev, format, args...) \
1537 dev_err(&_phydev->mdio.dev, format, ##args)
1538
1539 #define phydev_info(_phydev, format, args...) \
1540 dev_info(&_phydev->mdio.dev, format, ##args)
1541
1542 #define phydev_warn(_phydev, format, args...) \
1543 dev_warn(&_phydev->mdio.dev, format, ##args)
1544
1545 #define phydev_dbg(_phydev, format, args...) \
1546 dev_dbg(&_phydev->mdio.dev, format, ##args)
1547
phydev_name(const struct phy_device * phydev)1548 static inline const char *phydev_name(const struct phy_device *phydev)
1549 {
1550 return dev_name(&phydev->mdio.dev);
1551 }
1552
phy_lock_mdio_bus(struct phy_device * phydev)1553 static inline void phy_lock_mdio_bus(struct phy_device *phydev)
1554 {
1555 mutex_lock(&phydev->mdio.bus->mdio_lock);
1556 }
1557
phy_unlock_mdio_bus(struct phy_device * phydev)1558 static inline void phy_unlock_mdio_bus(struct phy_device *phydev)
1559 {
1560 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1561 }
1562
1563 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
1564 __printf(2, 3);
1565 char *phy_attached_info_irq(struct phy_device *phydev)
1566 __malloc;
1567 void phy_attached_info(struct phy_device *phydev);
1568
1569 /* Clause 22 PHY */
1570 int genphy_read_abilities(struct phy_device *phydev);
1571 int genphy_setup_forced(struct phy_device *phydev);
1572 int genphy_restart_aneg(struct phy_device *phydev);
1573 int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1574 int genphy_config_eee_advert(struct phy_device *phydev);
1575 int __genphy_config_aneg(struct phy_device *phydev, bool changed);
1576 int genphy_aneg_done(struct phy_device *phydev);
1577 int genphy_update_link(struct phy_device *phydev);
1578 int genphy_read_lpa(struct phy_device *phydev);
1579 int genphy_read_status_fixed(struct phy_device *phydev);
1580 int genphy_read_status(struct phy_device *phydev);
1581 int genphy_suspend(struct phy_device *phydev);
1582 int genphy_resume(struct phy_device *phydev);
1583 int genphy_loopback(struct phy_device *phydev, bool enable);
1584 int genphy_soft_reset(struct phy_device *phydev);
1585 irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev);
1586
genphy_config_aneg(struct phy_device * phydev)1587 static inline int genphy_config_aneg(struct phy_device *phydev)
1588 {
1589 return __genphy_config_aneg(phydev, false);
1590 }
1591
genphy_no_config_intr(struct phy_device * phydev)1592 static inline int genphy_no_config_intr(struct phy_device *phydev)
1593 {
1594 return 0;
1595 }
1596 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
1597 u16 regnum);
1598 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
1599 u16 regnum, u16 val);
1600
1601 /* Clause 37 */
1602 int genphy_c37_config_aneg(struct phy_device *phydev);
1603 int genphy_c37_read_status(struct phy_device *phydev);
1604
1605 /* Clause 45 PHY */
1606 int genphy_c45_restart_aneg(struct phy_device *phydev);
1607 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1608 int genphy_c45_aneg_done(struct phy_device *phydev);
1609 int genphy_c45_read_link(struct phy_device *phydev);
1610 int genphy_c45_read_lpa(struct phy_device *phydev);
1611 int genphy_c45_read_pma(struct phy_device *phydev);
1612 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
1613 int genphy_c45_an_config_aneg(struct phy_device *phydev);
1614 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
1615 int genphy_c45_read_mdix(struct phy_device *phydev);
1616 int genphy_c45_pma_read_abilities(struct phy_device *phydev);
1617 int genphy_c45_read_status(struct phy_device *phydev);
1618 int genphy_c45_config_aneg(struct phy_device *phydev);
1619 int genphy_c45_loopback(struct phy_device *phydev, bool enable);
1620 int genphy_c45_pma_resume(struct phy_device *phydev);
1621 int genphy_c45_pma_suspend(struct phy_device *phydev);
1622 int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable);
1623
1624 /* Generic C45 PHY driver */
1625 extern struct phy_driver genphy_c45_driver;
1626
1627 /* The gen10g_* functions are the old Clause 45 stub */
1628 int gen10g_config_aneg(struct phy_device *phydev);
1629
phy_read_status(struct phy_device * phydev)1630 static inline int phy_read_status(struct phy_device *phydev)
1631 {
1632 if (!phydev->drv)
1633 return -EIO;
1634
1635 if (phydev->drv->read_status)
1636 return phydev->drv->read_status(phydev);
1637 else
1638 return genphy_read_status(phydev);
1639 }
1640
1641 void phy_driver_unregister(struct phy_driver *drv);
1642 void phy_drivers_unregister(struct phy_driver *drv, int n);
1643 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
1644 int phy_drivers_register(struct phy_driver *new_driver, int n,
1645 struct module *owner);
1646 void phy_error(struct phy_device *phydev);
1647 void phy_state_machine(struct work_struct *work);
1648 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
1649 void phy_trigger_machine(struct phy_device *phydev);
1650 void phy_mac_interrupt(struct phy_device *phydev);
1651 void phy_start_machine(struct phy_device *phydev);
1652 void phy_stop_machine(struct phy_device *phydev);
1653 void phy_ethtool_ksettings_get(struct phy_device *phydev,
1654 struct ethtool_link_ksettings *cmd);
1655 int phy_ethtool_ksettings_set(struct phy_device *phydev,
1656 const struct ethtool_link_ksettings *cmd);
1657 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
1658 int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
1659 int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
1660 int phy_disable_interrupts(struct phy_device *phydev);
1661 void phy_request_interrupt(struct phy_device *phydev);
1662 void phy_free_interrupt(struct phy_device *phydev);
1663 void phy_print_status(struct phy_device *phydev);
1664 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
1665 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
1666 void phy_advertise_supported(struct phy_device *phydev);
1667 void phy_support_sym_pause(struct phy_device *phydev);
1668 void phy_support_asym_pause(struct phy_device *phydev);
1669 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
1670 bool autoneg);
1671 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
1672 bool phy_validate_pause(struct phy_device *phydev,
1673 struct ethtool_pauseparam *pp);
1674 void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
1675
1676 s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
1677 const int *delay_values, int size, bool is_rx);
1678
1679 void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
1680 bool *tx_pause, bool *rx_pause);
1681
1682 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
1683 int (*run)(struct phy_device *));
1684 int phy_register_fixup_for_id(const char *bus_id,
1685 int (*run)(struct phy_device *));
1686 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
1687 int (*run)(struct phy_device *));
1688
1689 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
1690 int phy_unregister_fixup_for_id(const char *bus_id);
1691 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
1692
1693 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
1694 int phy_get_eee_err(struct phy_device *phydev);
1695 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
1696 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
1697 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
1698 void phy_ethtool_get_wol(struct phy_device *phydev,
1699 struct ethtool_wolinfo *wol);
1700 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
1701 struct ethtool_link_ksettings *cmd);
1702 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
1703 const struct ethtool_link_ksettings *cmd);
1704 int phy_ethtool_nway_reset(struct net_device *ndev);
1705 int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size);
1706 void phy_package_leave(struct phy_device *phydev);
1707 int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
1708 int addr, size_t priv_size);
1709
1710 #if IS_ENABLED(CONFIG_PHYLIB)
1711 int __init mdio_bus_init(void);
1712 void mdio_bus_exit(void);
1713 #endif
1714
1715 int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
1716 int phy_ethtool_get_sset_count(struct phy_device *phydev);
1717 int phy_ethtool_get_stats(struct phy_device *phydev,
1718 struct ethtool_stats *stats, u64 *data);
1719
phy_package_read(struct phy_device * phydev,u32 regnum)1720 static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
1721 {
1722 struct phy_package_shared *shared = phydev->shared;
1723
1724 if (!shared)
1725 return -EIO;
1726
1727 return mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1728 }
1729
__phy_package_read(struct phy_device * phydev,u32 regnum)1730 static inline int __phy_package_read(struct phy_device *phydev, u32 regnum)
1731 {
1732 struct phy_package_shared *shared = phydev->shared;
1733
1734 if (!shared)
1735 return -EIO;
1736
1737 return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1738 }
1739
phy_package_write(struct phy_device * phydev,u32 regnum,u16 val)1740 static inline int phy_package_write(struct phy_device *phydev,
1741 u32 regnum, u16 val)
1742 {
1743 struct phy_package_shared *shared = phydev->shared;
1744
1745 if (!shared)
1746 return -EIO;
1747
1748 return mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1749 }
1750
__phy_package_write(struct phy_device * phydev,u32 regnum,u16 val)1751 static inline int __phy_package_write(struct phy_device *phydev,
1752 u32 regnum, u16 val)
1753 {
1754 struct phy_package_shared *shared = phydev->shared;
1755
1756 if (!shared)
1757 return -EIO;
1758
1759 return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1760 }
1761
__phy_package_set_once(struct phy_device * phydev,unsigned int b)1762 static inline bool __phy_package_set_once(struct phy_device *phydev,
1763 unsigned int b)
1764 {
1765 struct phy_package_shared *shared = phydev->shared;
1766
1767 if (!shared)
1768 return false;
1769
1770 return !test_and_set_bit(b, &shared->flags);
1771 }
1772
phy_package_init_once(struct phy_device * phydev)1773 static inline bool phy_package_init_once(struct phy_device *phydev)
1774 {
1775 return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
1776 }
1777
phy_package_probe_once(struct phy_device * phydev)1778 static inline bool phy_package_probe_once(struct phy_device *phydev)
1779 {
1780 return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
1781 }
1782
1783 extern struct bus_type mdio_bus_type;
1784
1785 struct mdio_board_info {
1786 const char *bus_id;
1787 char modalias[MDIO_NAME_SIZE];
1788 int mdio_addr;
1789 const void *platform_data;
1790 };
1791
1792 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
1793 int mdiobus_register_board_info(const struct mdio_board_info *info,
1794 unsigned int n);
1795 #else
mdiobus_register_board_info(const struct mdio_board_info * i,unsigned int n)1796 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
1797 unsigned int n)
1798 {
1799 return 0;
1800 }
1801 #endif
1802
1803
1804 /**
1805 * phy_module_driver() - Helper macro for registering PHY drivers
1806 * @__phy_drivers: array of PHY drivers to register
1807 * @__count: Numbers of members in array
1808 *
1809 * Helper macro for PHY drivers which do not do anything special in module
1810 * init/exit. Each module may only use this macro once, and calling it
1811 * replaces module_init() and module_exit().
1812 */
1813 #define phy_module_driver(__phy_drivers, __count) \
1814 static int __init phy_module_init(void) \
1815 { \
1816 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
1817 } \
1818 module_init(phy_module_init); \
1819 static void __exit phy_module_exit(void) \
1820 { \
1821 phy_drivers_unregister(__phy_drivers, __count); \
1822 } \
1823 module_exit(phy_module_exit)
1824
1825 #define module_phy_driver(__phy_drivers) \
1826 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
1827
1828 bool phy_driver_is_genphy(struct phy_device *phydev);
1829 bool phy_driver_is_genphy_10g(struct phy_device *phydev);
1830
1831 #endif /* __PHY_H */
1832