1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Framework and drivers for configuring and reading different PHYs
4 * Based on code in sungem_phy.c and (long-removed) gianfar_phy.c
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
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>
31 #include <linux/atomic.h>
33 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
37 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
38 SUPPORTED_10baseT_Full)
40 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
41 SUPPORTED_100baseT_Full)
43 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
44 SUPPORTED_1000baseT_Full)
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;
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)
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];
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
78 #define PHY_MAC_INTERRUPT -2
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
86 * enum phy_interface_t - Interface Mode definitions
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
120 * Describes the interface between the MAC and PHY.
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,
159 * phy_supported_speeds - return all speeds currently supported by a PHY device
161 unsigned int phy_supported_speeds(struct phy_device *phy,
162 unsigned int *speeds,
166 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
167 * @interface: enum phy_interface_t value
169 * Description: maps enum &phy_interface_t defined in this file
170 * into the device tree binding of 'phy-mode', so that Ethernet
171 * device driver can get PHY interface from device tree.
173 static inline const char *phy_modes(phy_interface_t interface)
176 case PHY_INTERFACE_MODE_NA:
178 case PHY_INTERFACE_MODE_INTERNAL:
180 case PHY_INTERFACE_MODE_MII:
182 case PHY_INTERFACE_MODE_GMII:
184 case PHY_INTERFACE_MODE_SGMII:
186 case PHY_INTERFACE_MODE_TBI:
188 case PHY_INTERFACE_MODE_REVMII:
190 case PHY_INTERFACE_MODE_RMII:
192 case PHY_INTERFACE_MODE_REVRMII:
194 case PHY_INTERFACE_MODE_RGMII:
196 case PHY_INTERFACE_MODE_RGMII_ID:
198 case PHY_INTERFACE_MODE_RGMII_RXID:
200 case PHY_INTERFACE_MODE_RGMII_TXID:
202 case PHY_INTERFACE_MODE_RTBI:
204 case PHY_INTERFACE_MODE_SMII:
206 case PHY_INTERFACE_MODE_XGMII:
208 case PHY_INTERFACE_MODE_XLGMII:
210 case PHY_INTERFACE_MODE_MOCA:
212 case PHY_INTERFACE_MODE_QSGMII:
214 case PHY_INTERFACE_MODE_TRGMII:
216 case PHY_INTERFACE_MODE_1000BASEX:
218 case PHY_INTERFACE_MODE_2500BASEX:
220 case PHY_INTERFACE_MODE_5GBASER:
222 case PHY_INTERFACE_MODE_RXAUI:
224 case PHY_INTERFACE_MODE_XAUI:
226 case PHY_INTERFACE_MODE_10GBASER:
228 case PHY_INTERFACE_MODE_25GBASER:
230 case PHY_INTERFACE_MODE_USXGMII:
232 case PHY_INTERFACE_MODE_10GKR:
234 case PHY_INTERFACE_MODE_100BASEX:
242 #define PHY_INIT_TIMEOUT 100000
243 #define PHY_FORCE_TIMEOUT 10
245 #define PHY_MAX_ADDR 32
247 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
248 #define PHY_ID_FMT "%s:%02x"
250 #define MII_BUS_ID_SIZE 61
255 struct sfp_upstream_ops;
259 * struct mdio_bus_stats - Statistics counters for MDIO busses
260 * @transfers: Total number of transfers, i.e. @writes + @reads
261 * @errors: Number of MDIO transfers that returned an error
262 * @writes: Number of write transfers
263 * @reads: Number of read transfers
264 * @syncp: Synchronisation for incrementing statistics
266 struct mdio_bus_stats {
267 u64_stats_t transfers;
271 /* Must be last, add new statistics above */
272 struct u64_stats_sync syncp;
276 * struct phy_package_shared - Shared information in PHY packages
277 * @addr: Common PHY address used to combine PHYs in one package
278 * @refcnt: Number of PHYs connected to this shared data
279 * @flags: Initialization of PHY package
280 * @priv_size: Size of the shared private data @priv
281 * @priv: Driver private data shared across a PHY package
283 * Represents a shared structure between different phydev's in the same
284 * package, for example a quad PHY. See phy_package_join() and
285 * phy_package_leave().
287 struct phy_package_shared {
293 /* private data pointer */
294 /* note that this pointer is shared between different phydevs and
295 * the user has to take care of appropriate locking. It is allocated
296 * and freed automatically by phy_package_join() and
297 * phy_package_leave().
302 /* used as bit number in atomic bitops */
303 #define PHY_SHARED_F_INIT_DONE 0
304 #define PHY_SHARED_F_PROBE_DONE 1
307 * struct mii_bus - Represents an MDIO bus
309 * @owner: Who owns this device
310 * @name: User friendly name for this MDIO device, or driver name
311 * @id: Unique identifier for this bus, typical from bus hierarchy
312 * @priv: Driver private data
314 * The Bus class for PHYs. Devices which provide access to
315 * PHYs should register using this structure
318 struct module *owner;
320 char id[MII_BUS_ID_SIZE];
322 /** @read: Perform a read transfer on the bus */
323 int (*read)(struct mii_bus *bus, int addr, int regnum);
324 /** @write: Perform a write transfer on the bus */
325 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
326 /** @reset: Perform a reset of the bus */
327 int (*reset)(struct mii_bus *bus);
329 /** @stats: Statistic counters per device on the bus */
330 struct mdio_bus_stats stats[PHY_MAX_ADDR];
333 * @mdio_lock: A lock to ensure that only one thing can read/write
334 * the MDIO bus at a time
336 struct mutex mdio_lock;
338 /** @parent: Parent device of this bus */
339 struct device *parent;
340 /** @state: State of bus structure */
342 MDIOBUS_ALLOCATED = 1,
344 MDIOBUS_UNREGISTERED,
348 /** @dev: Kernel device representation */
351 /** @mdio_map: list of all MDIO devices on bus */
352 struct mdio_device *mdio_map[PHY_MAX_ADDR];
354 /** @phy_mask: PHY addresses to be ignored when probing */
357 /** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */
358 u32 phy_ignore_ta_mask;
361 * @irq: An array of interrupts, each PHY's interrupt at the index
362 * matching its address
364 int irq[PHY_MAX_ADDR];
366 /** @reset_delay_us: GPIO reset pulse width in microseconds */
368 /** @reset_post_delay_us: GPIO reset deassert delay in microseconds */
369 int reset_post_delay_us;
370 /** @reset_gpiod: Reset GPIO descriptor pointer */
371 struct gpio_desc *reset_gpiod;
373 /** @probe_capabilities: bus capabilities, used for probing */
379 } probe_capabilities;
381 /** @shared_lock: protect access to the shared element */
382 struct mutex shared_lock;
384 /** @shared: shared state across different PHYs */
385 struct phy_package_shared *shared[PHY_MAX_ADDR];
387 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
389 struct mii_bus *mdiobus_alloc_size(size_t size);
392 * mdiobus_alloc - Allocate an MDIO bus structure
394 * The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready
395 * for the driver to register the bus.
397 static inline struct mii_bus *mdiobus_alloc(void)
399 return mdiobus_alloc_size(0);
402 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
403 int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
404 struct module *owner);
405 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
406 #define devm_mdiobus_register(dev, bus) \
407 __devm_mdiobus_register(dev, bus, THIS_MODULE)
409 void mdiobus_unregister(struct mii_bus *bus);
410 void mdiobus_free(struct mii_bus *bus);
411 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
412 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
414 return devm_mdiobus_alloc_size(dev, 0);
417 struct mii_bus *mdio_find_bus(const char *mdio_name);
418 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
420 #define PHY_INTERRUPT_DISABLED false
421 #define PHY_INTERRUPT_ENABLED true
424 * enum phy_state - PHY state machine states:
426 * @PHY_DOWN: PHY device and driver are not ready for anything. probe
427 * should be called if and only if the PHY is in this state,
428 * given that the PHY device exists.
429 * - PHY driver probe function will set the state to @PHY_READY
431 * @PHY_READY: PHY is ready to send and receive packets, but the
432 * controller is not. By default, PHYs which do not implement
433 * probe will be set to this state by phy_probe().
434 * - start will set the state to UP
436 * @PHY_UP: The PHY and attached device are ready to do work.
437 * Interrupts should be started here.
438 * - timer moves to @PHY_NOLINK or @PHY_RUNNING
440 * @PHY_NOLINK: PHY is up, but not currently plugged in.
441 * - irq or timer will set @PHY_RUNNING if link comes back
442 * - phy_stop moves to @PHY_HALTED
444 * @PHY_RUNNING: PHY is currently up, running, and possibly sending
445 * and/or receiving packets
446 * - irq or timer will set @PHY_NOLINK if link goes down
447 * - phy_stop moves to @PHY_HALTED
449 * @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending
450 * is not expected to work, carrier will be indicated as down. PHY will be
451 * poll once per second, or on interrupt for it current state.
452 * Once complete, move to UP to restart the PHY.
453 * - phy_stop aborts the running test and moves to @PHY_HALTED
455 * @PHY_HALTED: PHY is up, but no polling or interrupts are done. Or
456 * PHY is in an error state.
457 * - phy_start moves to @PHY_UP
469 #define MDIO_MMD_NUM 32
472 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
473 * @devices_in_package: IEEE 802.3 devices in package register value.
474 * @mmds_present: bit vector of MMDs present.
475 * @device_ids: The device identifer for each present device.
477 struct phy_c45_device_ids {
478 u32 devices_in_package;
480 u32 device_ids[MDIO_MMD_NUM];
483 struct macsec_context;
487 * struct phy_device - An instance of a PHY
489 * @mdio: MDIO bus this PHY is on
490 * @drv: Pointer to the driver for this PHY instance
491 * @phy_id: UID for this device found during discovery
492 * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
493 * @is_c45: Set to true if this PHY uses clause 45 addressing.
494 * @is_internal: Set to true if this PHY is internal to a MAC.
495 * @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc.
496 * @is_gigabit_capable: Set to true if PHY supports 1000Mbps
497 * @has_fixups: Set to true if this PHY has fixups/quirks.
498 * @suspended: Set to true if this PHY has been suspended successfully.
499 * @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus.
500 * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
501 * @loopback_enabled: Set true if this PHY has been loopbacked successfully.
502 * @downshifted_rate: Set true if link speed has been downshifted.
503 * @is_on_sfp_module: Set true if PHY is located on an SFP module.
504 * @mac_managed_pm: Set true if MAC driver takes of suspending/resuming PHY
505 * @state: State of the PHY for management purposes
506 * @dev_flags: Device-specific flags used by the PHY driver.
507 * Bits [15:0] are free to use by the PHY driver to communicate
508 * driver specific behavior.
509 * Bits [23:16] are currently reserved for future use.
510 * Bits [31:24] are reserved for defining generic
511 * PHY driver behavior.
512 * @irq: IRQ number of the PHY's interrupt (-1 if none)
513 * @phy_timer: The timer for handling the state machine
514 * @phylink: Pointer to phylink instance for this PHY
515 * @sfp_bus_attached: Flag indicating whether the SFP bus has been attached
516 * @sfp_bus: SFP bus attached to this PHY's fiber port
517 * @attached_dev: The attached enet driver's device instance ptr
518 * @adjust_link: Callback for the enet controller to respond to changes: in the
520 * @phy_link_change: Callback for phylink for notification of link change
521 * @macsec_ops: MACsec offloading ops.
523 * @speed: Current link speed
524 * @duplex: Current duplex
525 * @port: Current port
526 * @pause: Current pause
527 * @asym_pause: Current asymmetric pause
528 * @supported: Combined MAC/PHY supported linkmodes
529 * @advertising: Currently advertised linkmodes
530 * @adv_old: Saved advertised while power saving for WoL
531 * @lp_advertising: Current link partner advertised linkmodes
532 * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
533 * @autoneg: Flag autoneg being used
534 * @link: Current link state
535 * @autoneg_complete: Flag auto negotiation of the link has completed
536 * @mdix: Current crossover
537 * @mdix_ctrl: User setting of crossover
538 * @interrupts: Flag interrupts have been enabled
539 * @irq_suspended: Flag indicating PHY is suspended and therefore interrupt
540 * handling shall be postponed until PHY has resumed
541 * @irq_rerun: Flag indicating interrupts occurred while PHY was suspended,
542 * requiring a rerun of the interrupt handler after resume
543 * @interface: enum phy_interface_t value
544 * @skb: Netlink message for cable diagnostics
545 * @nest: Netlink nest used for cable diagnostics
546 * @ehdr: nNtlink header for cable diagnostics
547 * @phy_led_triggers: Array of LED triggers
548 * @phy_num_led_triggers: Number of triggers in @phy_led_triggers
549 * @led_link_trigger: LED trigger for link up/down
550 * @last_triggered: last LED trigger for link speed
551 * @master_slave_set: User requested master/slave configuration
552 * @master_slave_get: Current master/slave advertisement
553 * @master_slave_state: Current master/slave configuration
554 * @mii_ts: Pointer to time stamper callbacks
555 * @lock: Mutex for serialization access to PHY
556 * @state_queue: Work queue for state machine
557 * @shared: Pointer to private data shared by phys in one package
558 * @priv: Pointer to driver private data
560 * interrupts currently only supports enabled or disabled,
561 * but could be changed in the future to support enabling
562 * and disabling specific interrupts
564 * Contains some infrastructure for polling and interrupt
565 * handling, as well as handling shifts in PHY hardware state
568 struct mdio_device mdio;
570 /* Information about the PHY type */
571 /* And management functions */
572 struct phy_driver *drv;
576 struct phy_c45_device_ids c45_ids;
578 unsigned is_internal:1;
579 unsigned is_pseudo_fixed_link:1;
580 unsigned is_gigabit_capable:1;
581 unsigned has_fixups:1;
582 unsigned suspended:1;
583 unsigned suspended_by_mdio_bus:1;
584 unsigned sysfs_links:1;
585 unsigned loopback_enabled:1;
586 unsigned downshifted_rate:1;
587 unsigned is_on_sfp_module:1;
588 unsigned mac_managed_pm:1;
591 /* The most recently read link state */
593 unsigned autoneg_complete:1;
595 /* Interrupts are enabled */
596 unsigned interrupts:1;
597 unsigned irq_suspended:1;
598 unsigned irq_rerun:1;
600 enum phy_state state;
604 phy_interface_t interface;
607 * forced speed & duplex (no autoneg)
608 * partner speed & duplex & pause (autoneg)
617 u8 master_slave_state;
619 /* Union of PHY and Attached devices' supported link modes */
620 /* See ethtool.h for more info */
621 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
622 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
623 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
624 /* used with phy_speed_down */
625 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
627 /* Energy efficient ethernet modes which should be prohibited */
628 u32 eee_broken_modes;
630 #ifdef CONFIG_LED_TRIGGER_PHY
631 struct phy_led_trigger *phy_led_triggers;
632 unsigned int phy_num_led_triggers;
633 struct phy_led_trigger *last_triggered;
635 struct phy_led_trigger *led_link_trigger;
639 * Interrupt number for this PHY
640 * -1 means no interrupt
644 /* private data pointer */
645 /* For use by PHYs to maintain extra state */
648 /* shared data pointer */
649 /* For use by PHYs inside the same package that need a shared state. */
650 struct phy_package_shared *shared;
652 /* Reporting cable test results */
657 /* Interrupt and Polling infrastructure */
658 struct delayed_work state_queue;
662 /* This may be modified under the rtnl lock */
663 bool sfp_bus_attached;
664 struct sfp_bus *sfp_bus;
665 struct phylink *phylink;
666 struct net_device *attached_dev;
667 struct mii_timestamper *mii_ts;
672 void (*phy_link_change)(struct phy_device *phydev, bool up);
673 void (*adjust_link)(struct net_device *dev);
675 #if IS_ENABLED(CONFIG_MACSEC)
676 /* MACsec management functions */
677 const struct macsec_ops *macsec_ops;
681 static inline struct phy_device *to_phy_device(const struct device *dev)
683 return container_of(to_mdio_device(dev), struct phy_device, mdio);
687 * struct phy_tdr_config - Configuration of a TDR raw test
689 * @first: Distance for first data collection point
690 * @last: Distance for last data collection point
691 * @step: Step between data collection points
692 * @pair: Bitmap of cable pairs to collect data for
694 * A structure containing possible configuration parameters
695 * for a TDR cable test. The driver does not need to implement
696 * all the parameters, but should report what is actually used.
697 * All distances are in centimeters.
699 struct phy_tdr_config {
705 #define PHY_PAIR_ALL -1
708 * struct phy_driver - Driver structure for a particular PHY type
710 * @mdiodrv: Data common to all MDIO devices
711 * @phy_id: The result of reading the UID registers of this PHY
712 * type, and ANDing them with the phy_id_mask. This driver
713 * only works for PHYs with IDs which match this field
714 * @name: The friendly name of this PHY type
715 * @phy_id_mask: Defines the important bits of the phy_id
716 * @features: A mandatory list of features (speed, duplex, etc)
717 * supported by this PHY
718 * @flags: A bitfield defining certain other features this PHY
719 * supports (like interrupts)
720 * @driver_data: Static driver data
722 * All functions are optional. If config_aneg or read_status
723 * are not implemented, the phy core uses the genphy versions.
724 * Note that none of these functions should be called from
725 * interrupt time. The goal is for the bus read/write functions
726 * to be able to block when the bus transaction is happening,
727 * and be freed up by an interrupt (The MPC85xx has this ability,
728 * though it is not currently supported in the driver).
731 struct mdio_driver_common mdiodrv;
735 const unsigned long * const features;
737 const void *driver_data;
740 * @soft_reset: Called to issue a PHY software reset
742 int (*soft_reset)(struct phy_device *phydev);
745 * @config_init: Called to initialize the PHY,
746 * including after a reset
748 int (*config_init)(struct phy_device *phydev);
751 * @probe: Called during discovery. Used to set
752 * up device-specific structures, if any
754 int (*probe)(struct phy_device *phydev);
757 * @get_features: Probe the hardware to determine what
758 * abilities it has. Should only set phydev->supported.
760 int (*get_features)(struct phy_device *phydev);
762 /* PHY Power Management */
763 /** @suspend: Suspend the hardware, saving state if needed */
764 int (*suspend)(struct phy_device *phydev);
765 /** @resume: Resume the hardware, restoring state if needed */
766 int (*resume)(struct phy_device *phydev);
769 * @config_aneg: Configures the advertisement and resets
770 * autonegotiation if phydev->autoneg is on,
771 * forces the speed to the current settings in phydev
772 * if phydev->autoneg is off
774 int (*config_aneg)(struct phy_device *phydev);
776 /** @aneg_done: Determines the auto negotiation result */
777 int (*aneg_done)(struct phy_device *phydev);
779 /** @read_status: Determines the negotiated speed and duplex */
780 int (*read_status)(struct phy_device *phydev);
783 * @config_intr: Enables or disables interrupts.
784 * It should also clear any pending interrupts prior to enabling the
785 * IRQs and after disabling them.
787 int (*config_intr)(struct phy_device *phydev);
789 /** @handle_interrupt: Override default interrupt handling */
790 irqreturn_t (*handle_interrupt)(struct phy_device *phydev);
792 /** @remove: Clears up any memory if needed */
793 void (*remove)(struct phy_device *phydev);
796 * @match_phy_device: Returns true if this is a suitable
797 * driver for the given phydev. If NULL, matching is based on
798 * phy_id and phy_id_mask.
800 int (*match_phy_device)(struct phy_device *phydev);
803 * @set_wol: Some devices (e.g. qnap TS-119P II) require PHY
804 * register changes to enable Wake on LAN, so set_wol is
805 * provided to be called in the ethernet driver's set_wol
808 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
811 * @get_wol: See set_wol, but for checking whether Wake on LAN
814 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
817 * @link_change_notify: Called to inform a PHY device driver
818 * when the core is about to change the link state. This
819 * callback is supposed to be used as fixup hook for drivers
820 * that need to take action when the link state
821 * changes. Drivers are by no means allowed to mess with the
822 * PHY device structure in their implementations.
824 void (*link_change_notify)(struct phy_device *dev);
827 * @read_mmd: PHY specific driver override for reading a MMD
828 * register. This function is optional for PHY specific
829 * drivers. When not provided, the default MMD read function
830 * will be used by phy_read_mmd(), which will use either a
831 * direct read for Clause 45 PHYs or an indirect read for
832 * Clause 22 PHYs. devnum is the MMD device number within the
833 * PHY device, regnum is the register within the selected MMD
836 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
839 * @write_mmd: PHY specific driver override for writing a MMD
840 * register. This function is optional for PHY specific
841 * drivers. When not provided, the default MMD write function
842 * will be used by phy_write_mmd(), which will use either a
843 * direct write for Clause 45 PHYs, or an indirect write for
844 * Clause 22 PHYs. devnum is the MMD device number within the
845 * PHY device, regnum is the register within the selected MMD
846 * device. val is the value to be written.
848 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
851 /** @read_page: Return the current PHY register page number */
852 int (*read_page)(struct phy_device *dev);
853 /** @write_page: Set the current PHY register page number */
854 int (*write_page)(struct phy_device *dev, int page);
857 * @module_info: Get the size and type of the eeprom contained
858 * within a plug-in module
860 int (*module_info)(struct phy_device *dev,
861 struct ethtool_modinfo *modinfo);
864 * @module_eeprom: Get the eeprom information from the plug-in
867 int (*module_eeprom)(struct phy_device *dev,
868 struct ethtool_eeprom *ee, u8 *data);
870 /** @cable_test_start: Start a cable test */
871 int (*cable_test_start)(struct phy_device *dev);
873 /** @cable_test_tdr_start: Start a raw TDR cable test */
874 int (*cable_test_tdr_start)(struct phy_device *dev,
875 const struct phy_tdr_config *config);
878 * @cable_test_get_status: Once per second, or on interrupt,
879 * request the status of the test.
881 int (*cable_test_get_status)(struct phy_device *dev, bool *finished);
883 /* Get statistics from the PHY using ethtool */
884 /** @get_sset_count: Number of statistic counters */
885 int (*get_sset_count)(struct phy_device *dev);
886 /** @get_strings: Names of the statistic counters */
887 void (*get_strings)(struct phy_device *dev, u8 *data);
888 /** @get_stats: Return the statistic counter values */
889 void (*get_stats)(struct phy_device *dev,
890 struct ethtool_stats *stats, u64 *data);
892 /* Get and Set PHY tunables */
893 /** @get_tunable: Return the value of a tunable */
894 int (*get_tunable)(struct phy_device *dev,
895 struct ethtool_tunable *tuna, void *data);
896 /** @set_tunable: Set the value of a tunable */
897 int (*set_tunable)(struct phy_device *dev,
898 struct ethtool_tunable *tuna,
900 /** @set_loopback: Set the loopback mood of the PHY */
901 int (*set_loopback)(struct phy_device *dev, bool enable);
902 /** @get_sqi: Get the signal quality indication */
903 int (*get_sqi)(struct phy_device *dev);
904 /** @get_sqi_max: Get the maximum signal quality indication */
905 int (*get_sqi_max)(struct phy_device *dev);
907 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
908 struct phy_driver, mdiodrv)
910 #define PHY_ANY_ID "MATCH ANY PHY"
911 #define PHY_ANY_UID 0xffffffff
913 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
914 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
915 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
917 /* A Structure for boards to register fixups with the PHY Lib */
919 struct list_head list;
920 char bus_id[MII_BUS_ID_SIZE + 3];
923 int (*run)(struct phy_device *phydev);
926 const char *phy_speed_to_str(int speed);
927 const char *phy_duplex_to_str(unsigned int duplex);
929 /* A structure for mapping a particular speed and duplex
930 * combination to a particular SUPPORTED and ADVERTISED value
938 const struct phy_setting *
939 phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
941 size_t phy_speeds(unsigned int *speeds, size_t size,
942 unsigned long *mask);
943 void of_set_phy_supported(struct phy_device *phydev);
944 void of_set_phy_eee_broken(struct phy_device *phydev);
945 int phy_speed_down_core(struct phy_device *phydev);
948 * phy_is_started - Convenience function to check whether PHY is started
949 * @phydev: The phy_device struct
951 static inline bool phy_is_started(struct phy_device *phydev)
953 return phydev->state >= PHY_UP;
956 void phy_resolve_aneg_pause(struct phy_device *phydev);
957 void phy_resolve_aneg_linkmode(struct phy_device *phydev);
958 void phy_check_downshift(struct phy_device *phydev);
961 * phy_read - Convenience function for reading a given PHY register
962 * @phydev: the phy_device struct
963 * @regnum: register number to read
965 * NOTE: MUST NOT be called from interrupt context,
966 * because the bus read/write functions may wait for an interrupt
967 * to conclude the operation.
969 static inline int phy_read(struct phy_device *phydev, u32 regnum)
971 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
974 #define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \
975 timeout_us, sleep_before_read) \
977 int __ret = read_poll_timeout(phy_read, val, (cond) || val < 0, \
978 sleep_us, timeout_us, sleep_before_read, phydev, regnum); \
982 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
988 * __phy_read - convenience function for reading a given PHY register
989 * @phydev: the phy_device struct
990 * @regnum: register number to read
992 * The caller must have taken the MDIO bus lock.
994 static inline int __phy_read(struct phy_device *phydev, u32 regnum)
996 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1000 * phy_write - Convenience function for writing a given PHY register
1001 * @phydev: the phy_device struct
1002 * @regnum: register number to write
1003 * @val: value to write to @regnum
1005 * NOTE: MUST NOT be called from interrupt context,
1006 * because the bus read/write functions may wait for an interrupt
1007 * to conclude the operation.
1009 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1011 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
1015 * __phy_write - Convenience function for writing a given PHY register
1016 * @phydev: the phy_device struct
1017 * @regnum: register number to write
1018 * @val: value to write to @regnum
1020 * The caller must have taken the MDIO bus lock.
1022 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1024 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
1029 * __phy_modify_changed() - Convenience function for modifying a PHY register
1030 * @phydev: a pointer to a &struct phy_device
1031 * @regnum: register number
1032 * @mask: bit mask of bits to clear
1033 * @set: bit mask of bits to set
1035 * Unlocked helper function which allows a PHY register to be modified as
1036 * new register value = (old register value & ~mask) | set
1038 * Returns negative errno, 0 if there was no change, and 1 in case of change
1040 static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum,
1043 return __mdiobus_modify_changed(phydev->mdio.bus, phydev->mdio.addr,
1048 * phy_read_mmd - Convenience function for reading a register
1049 * from an MMD on a given PHY.
1051 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1054 * phy_read_mmd_poll_timeout - Periodically poll a PHY register until a
1055 * condition is met or a timeout occurs
1057 * @phydev: The phy_device struct
1058 * @devaddr: The MMD to read from
1059 * @regnum: The register on the MMD to read
1060 * @val: Variable to read the register into
1061 * @cond: Break condition (usually involving @val)
1062 * @sleep_us: Maximum time to sleep between reads in us (0
1063 * tight-loops). Should be less than ~20ms since usleep_range
1064 * is used (see Documentation/timers/timers-howto.rst).
1065 * @timeout_us: Timeout in us, 0 means never timeout
1066 * @sleep_before_read: if it is true, sleep @sleep_us before read.
1067 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either
1068 * case, the last read value at @args is stored in @val. Must not
1069 * be called from atomic context if sleep_us or timeout_us are used.
1071 #define phy_read_mmd_poll_timeout(phydev, devaddr, regnum, val, cond, \
1072 sleep_us, timeout_us, sleep_before_read) \
1074 int __ret = read_poll_timeout(phy_read_mmd, val, (cond) || val < 0, \
1075 sleep_us, timeout_us, sleep_before_read, \
1076 phydev, devaddr, regnum); \
1080 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1085 * __phy_read_mmd - Convenience function for reading a register
1086 * from an MMD on a given PHY.
1088 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1091 * phy_write_mmd - Convenience function for writing a register
1092 * on an MMD on a given PHY.
1094 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1097 * __phy_write_mmd - Convenience function for writing a register
1098 * on an MMD on a given PHY.
1100 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1102 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1104 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1106 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1107 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1109 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1111 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1113 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1115 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1119 * __phy_set_bits - Convenience function for setting bits in a PHY register
1120 * @phydev: the phy_device struct
1121 * @regnum: register number to write
1124 * The caller must have taken the MDIO bus lock.
1126 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1128 return __phy_modify(phydev, regnum, 0, val);
1132 * __phy_clear_bits - Convenience function for clearing bits in a PHY register
1133 * @phydev: the phy_device struct
1134 * @regnum: register number to write
1135 * @val: bits to clear
1137 * The caller must have taken the MDIO bus lock.
1139 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
1142 return __phy_modify(phydev, regnum, val, 0);
1146 * phy_set_bits - Convenience function for setting bits in a PHY register
1147 * @phydev: the phy_device struct
1148 * @regnum: register number to write
1151 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1153 return phy_modify(phydev, regnum, 0, val);
1157 * phy_clear_bits - Convenience function for clearing bits in a PHY register
1158 * @phydev: the phy_device struct
1159 * @regnum: register number to write
1160 * @val: bits to clear
1162 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
1164 return phy_modify(phydev, regnum, val, 0);
1168 * __phy_set_bits_mmd - Convenience function for setting bits in a register
1170 * @phydev: the phy_device struct
1171 * @devad: the MMD containing register to modify
1172 * @regnum: register number to modify
1175 * The caller must have taken the MDIO bus lock.
1177 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad,
1178 u32 regnum, u16 val)
1180 return __phy_modify_mmd(phydev, devad, regnum, 0, val);
1184 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register
1186 * @phydev: the phy_device struct
1187 * @devad: the MMD containing register to modify
1188 * @regnum: register number to modify
1189 * @val: bits to clear
1191 * The caller must have taken the MDIO bus lock.
1193 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1194 u32 regnum, u16 val)
1196 return __phy_modify_mmd(phydev, devad, regnum, val, 0);
1200 * phy_set_bits_mmd - Convenience function for setting bits in a register
1202 * @phydev: the phy_device struct
1203 * @devad: the MMD containing register to modify
1204 * @regnum: register number to modify
1207 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad,
1208 u32 regnum, u16 val)
1210 return phy_modify_mmd(phydev, devad, regnum, 0, val);
1214 * phy_clear_bits_mmd - Convenience function for clearing bits in a register
1216 * @phydev: the phy_device struct
1217 * @devad: the MMD containing register to modify
1218 * @regnum: register number to modify
1219 * @val: bits to clear
1221 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1222 u32 regnum, u16 val)
1224 return phy_modify_mmd(phydev, devad, regnum, val, 0);
1228 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
1229 * @phydev: the phy_device struct
1231 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
1234 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
1236 return phydev->irq != PHY_POLL && phydev->irq != PHY_MAC_INTERRUPT;
1240 * phy_polling_mode - Convenience function for testing whether polling is
1241 * used to detect PHY status changes
1242 * @phydev: the phy_device struct
1244 static inline bool phy_polling_mode(struct phy_device *phydev)
1246 if (phydev->state == PHY_CABLETEST)
1247 if (phydev->drv->flags & PHY_POLL_CABLE_TEST)
1250 return phydev->irq == PHY_POLL;
1254 * phy_has_hwtstamp - Tests whether a PHY time stamp configuration.
1255 * @phydev: the phy_device struct
1257 static inline bool phy_has_hwtstamp(struct phy_device *phydev)
1259 return phydev && phydev->mii_ts && phydev->mii_ts->hwtstamp;
1263 * phy_has_rxtstamp - Tests whether a PHY supports receive time stamping.
1264 * @phydev: the phy_device struct
1266 static inline bool phy_has_rxtstamp(struct phy_device *phydev)
1268 return phydev && phydev->mii_ts && phydev->mii_ts->rxtstamp;
1272 * phy_has_tsinfo - Tests whether a PHY reports time stamping and/or
1273 * PTP hardware clock capabilities.
1274 * @phydev: the phy_device struct
1276 static inline bool phy_has_tsinfo(struct phy_device *phydev)
1278 return phydev && phydev->mii_ts && phydev->mii_ts->ts_info;
1282 * phy_has_txtstamp - Tests whether a PHY supports transmit time stamping.
1283 * @phydev: the phy_device struct
1285 static inline bool phy_has_txtstamp(struct phy_device *phydev)
1287 return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp;
1290 static inline int phy_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
1292 return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
1295 static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb,
1298 return phydev->mii_ts->rxtstamp(phydev->mii_ts, skb, type);
1301 static inline int phy_ts_info(struct phy_device *phydev,
1302 struct ethtool_ts_info *tsinfo)
1304 return phydev->mii_ts->ts_info(phydev->mii_ts, tsinfo);
1307 static inline void phy_txtstamp(struct phy_device *phydev, struct sk_buff *skb,
1310 phydev->mii_ts->txtstamp(phydev->mii_ts, skb, type);
1314 * phy_is_internal - Convenience function for testing if a PHY is internal
1315 * @phydev: the phy_device struct
1317 static inline bool phy_is_internal(struct phy_device *phydev)
1319 return phydev->is_internal;
1323 * phy_on_sfp - Convenience function for testing if a PHY is on an SFP module
1324 * @phydev: the phy_device struct
1326 static inline bool phy_on_sfp(struct phy_device *phydev)
1328 return phydev->is_on_sfp_module;
1332 * phy_interface_mode_is_rgmii - Convenience function for testing if a
1333 * PHY interface mode is RGMII (all variants)
1334 * @mode: the &phy_interface_t enum
1336 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
1338 return mode >= PHY_INTERFACE_MODE_RGMII &&
1339 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
1343 * phy_interface_mode_is_8023z() - does the PHY interface mode use 802.3z
1345 * @mode: one of &enum phy_interface_t
1347 * Returns true if the PHY interface mode uses the 16-bit negotiation
1348 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding)
1350 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode)
1352 return mode == PHY_INTERFACE_MODE_1000BASEX ||
1353 mode == PHY_INTERFACE_MODE_2500BASEX;
1357 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
1358 * is RGMII (all variants)
1359 * @phydev: the phy_device struct
1361 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
1363 return phy_interface_mode_is_rgmii(phydev->interface);
1367 * phy_is_pseudo_fixed_link - Convenience function for testing if this
1368 * PHY is the CPU port facing side of an Ethernet switch, or similar.
1369 * @phydev: the phy_device struct
1371 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
1373 return phydev->is_pseudo_fixed_link;
1376 int phy_save_page(struct phy_device *phydev);
1377 int phy_select_page(struct phy_device *phydev, int page);
1378 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret);
1379 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum);
1380 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val);
1381 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum,
1383 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum,
1386 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
1388 struct phy_c45_device_ids *c45_ids);
1389 #if IS_ENABLED(CONFIG_PHYLIB)
1390 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
1391 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
1392 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);
1393 struct phy_device *device_phy_find_device(struct device *dev);
1394 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode);
1395 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
1396 int phy_device_register(struct phy_device *phy);
1397 void phy_device_free(struct phy_device *phydev);
1399 static inline int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
1404 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
1410 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode)
1415 static inline struct phy_device *device_phy_find_device(struct device *dev)
1421 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode)
1427 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
1432 static inline int phy_device_register(struct phy_device *phy)
1437 static inline void phy_device_free(struct phy_device *phydev) { }
1438 #endif /* CONFIG_PHYLIB */
1439 void phy_device_remove(struct phy_device *phydev);
1440 int phy_get_c45_ids(struct phy_device *phydev);
1441 int phy_init_hw(struct phy_device *phydev);
1442 int phy_suspend(struct phy_device *phydev);
1443 int phy_resume(struct phy_device *phydev);
1444 int __phy_resume(struct phy_device *phydev);
1445 int phy_loopback(struct phy_device *phydev, bool enable);
1446 void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
1447 void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
1448 int phy_sfp_probe(struct phy_device *phydev,
1449 const struct sfp_upstream_ops *ops);
1450 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
1451 phy_interface_t interface);
1452 struct phy_device *phy_find_first(struct mii_bus *bus);
1453 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
1454 u32 flags, phy_interface_t interface);
1455 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
1456 void (*handler)(struct net_device *),
1457 phy_interface_t interface);
1458 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
1459 void (*handler)(struct net_device *),
1460 phy_interface_t interface);
1461 void phy_disconnect(struct phy_device *phydev);
1462 void phy_detach(struct phy_device *phydev);
1463 void phy_start(struct phy_device *phydev);
1464 void phy_stop(struct phy_device *phydev);
1465 int phy_config_aneg(struct phy_device *phydev);
1466 int phy_start_aneg(struct phy_device *phydev);
1467 int phy_aneg_done(struct phy_device *phydev);
1468 int phy_speed_down(struct phy_device *phydev, bool sync);
1469 int phy_speed_up(struct phy_device *phydev);
1471 int phy_restart_aneg(struct phy_device *phydev);
1472 int phy_reset_after_clk_enable(struct phy_device *phydev);
1474 #if IS_ENABLED(CONFIG_PHYLIB)
1475 int phy_start_cable_test(struct phy_device *phydev,
1476 struct netlink_ext_ack *extack);
1477 int phy_start_cable_test_tdr(struct phy_device *phydev,
1478 struct netlink_ext_ack *extack,
1479 const struct phy_tdr_config *config);
1482 int phy_start_cable_test(struct phy_device *phydev,
1483 struct netlink_ext_ack *extack)
1485 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1489 int phy_start_cable_test_tdr(struct phy_device *phydev,
1490 struct netlink_ext_ack *extack,
1491 const struct phy_tdr_config *config)
1493 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1498 int phy_cable_test_result(struct phy_device *phydev, u8 pair, u16 result);
1499 int phy_cable_test_fault_length(struct phy_device *phydev, u8 pair,
1502 static inline void phy_device_reset(struct phy_device *phydev, int value)
1504 mdio_device_reset(&phydev->mdio, value);
1507 #define phydev_err(_phydev, format, args...) \
1508 dev_err(&_phydev->mdio.dev, format, ##args)
1510 #define phydev_info(_phydev, format, args...) \
1511 dev_info(&_phydev->mdio.dev, format, ##args)
1513 #define phydev_warn(_phydev, format, args...) \
1514 dev_warn(&_phydev->mdio.dev, format, ##args)
1516 #define phydev_dbg(_phydev, format, args...) \
1517 dev_dbg(&_phydev->mdio.dev, format, ##args)
1519 static inline const char *phydev_name(const struct phy_device *phydev)
1521 return dev_name(&phydev->mdio.dev);
1524 static inline void phy_lock_mdio_bus(struct phy_device *phydev)
1526 mutex_lock(&phydev->mdio.bus->mdio_lock);
1529 static inline void phy_unlock_mdio_bus(struct phy_device *phydev)
1531 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1534 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
1536 char *phy_attached_info_irq(struct phy_device *phydev)
1538 void phy_attached_info(struct phy_device *phydev);
1541 int genphy_read_abilities(struct phy_device *phydev);
1542 int genphy_setup_forced(struct phy_device *phydev);
1543 int genphy_restart_aneg(struct phy_device *phydev);
1544 int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1545 int genphy_config_eee_advert(struct phy_device *phydev);
1546 int __genphy_config_aneg(struct phy_device *phydev, bool changed);
1547 int genphy_aneg_done(struct phy_device *phydev);
1548 int genphy_update_link(struct phy_device *phydev);
1549 int genphy_read_lpa(struct phy_device *phydev);
1550 int genphy_read_status_fixed(struct phy_device *phydev);
1551 int genphy_read_status(struct phy_device *phydev);
1552 int genphy_suspend(struct phy_device *phydev);
1553 int genphy_resume(struct phy_device *phydev);
1554 int genphy_loopback(struct phy_device *phydev, bool enable);
1555 int genphy_soft_reset(struct phy_device *phydev);
1556 irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev);
1558 static inline int genphy_config_aneg(struct phy_device *phydev)
1560 return __genphy_config_aneg(phydev, false);
1563 static inline int genphy_no_config_intr(struct phy_device *phydev)
1567 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
1569 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
1570 u16 regnum, u16 val);
1573 int genphy_c37_config_aneg(struct phy_device *phydev);
1574 int genphy_c37_read_status(struct phy_device *phydev);
1577 int genphy_c45_restart_aneg(struct phy_device *phydev);
1578 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1579 int genphy_c45_aneg_done(struct phy_device *phydev);
1580 int genphy_c45_read_link(struct phy_device *phydev);
1581 int genphy_c45_read_lpa(struct phy_device *phydev);
1582 int genphy_c45_read_pma(struct phy_device *phydev);
1583 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
1584 int genphy_c45_an_config_aneg(struct phy_device *phydev);
1585 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
1586 int genphy_c45_read_mdix(struct phy_device *phydev);
1587 int genphy_c45_pma_read_abilities(struct phy_device *phydev);
1588 int genphy_c45_read_status(struct phy_device *phydev);
1589 int genphy_c45_config_aneg(struct phy_device *phydev);
1590 int genphy_c45_loopback(struct phy_device *phydev, bool enable);
1591 int genphy_c45_pma_resume(struct phy_device *phydev);
1592 int genphy_c45_pma_suspend(struct phy_device *phydev);
1594 /* Generic C45 PHY driver */
1595 extern struct phy_driver genphy_c45_driver;
1597 /* The gen10g_* functions are the old Clause 45 stub */
1598 int gen10g_config_aneg(struct phy_device *phydev);
1600 static inline int phy_read_status(struct phy_device *phydev)
1605 if (phydev->drv->read_status)
1606 return phydev->drv->read_status(phydev);
1608 return genphy_read_status(phydev);
1611 void phy_driver_unregister(struct phy_driver *drv);
1612 void phy_drivers_unregister(struct phy_driver *drv, int n);
1613 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
1614 int phy_drivers_register(struct phy_driver *new_driver, int n,
1615 struct module *owner);
1616 void phy_error(struct phy_device *phydev);
1617 void phy_state_machine(struct work_struct *work);
1618 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
1619 void phy_trigger_machine(struct phy_device *phydev);
1620 void phy_mac_interrupt(struct phy_device *phydev);
1621 void phy_start_machine(struct phy_device *phydev);
1622 void phy_stop_machine(struct phy_device *phydev);
1623 void phy_ethtool_ksettings_get(struct phy_device *phydev,
1624 struct ethtool_link_ksettings *cmd);
1625 int phy_ethtool_ksettings_set(struct phy_device *phydev,
1626 const struct ethtool_link_ksettings *cmd);
1627 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
1628 int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
1629 int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
1630 int phy_disable_interrupts(struct phy_device *phydev);
1631 void phy_request_interrupt(struct phy_device *phydev);
1632 void phy_free_interrupt(struct phy_device *phydev);
1633 void phy_print_status(struct phy_device *phydev);
1634 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
1635 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
1636 void phy_advertise_supported(struct phy_device *phydev);
1637 void phy_support_sym_pause(struct phy_device *phydev);
1638 void phy_support_asym_pause(struct phy_device *phydev);
1639 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
1641 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
1642 bool phy_validate_pause(struct phy_device *phydev,
1643 struct ethtool_pauseparam *pp);
1644 void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
1646 s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
1647 const int *delay_values, int size, bool is_rx);
1649 void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
1650 bool *tx_pause, bool *rx_pause);
1652 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
1653 int (*run)(struct phy_device *));
1654 int phy_register_fixup_for_id(const char *bus_id,
1655 int (*run)(struct phy_device *));
1656 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
1657 int (*run)(struct phy_device *));
1659 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
1660 int phy_unregister_fixup_for_id(const char *bus_id);
1661 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
1663 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
1664 int phy_get_eee_err(struct phy_device *phydev);
1665 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
1666 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
1667 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
1668 void phy_ethtool_get_wol(struct phy_device *phydev,
1669 struct ethtool_wolinfo *wol);
1670 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
1671 struct ethtool_link_ksettings *cmd);
1672 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
1673 const struct ethtool_link_ksettings *cmd);
1674 int phy_ethtool_nway_reset(struct net_device *ndev);
1675 int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size);
1676 void phy_package_leave(struct phy_device *phydev);
1677 int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
1678 int addr, size_t priv_size);
1680 #if IS_ENABLED(CONFIG_PHYLIB)
1681 int __init mdio_bus_init(void);
1682 void mdio_bus_exit(void);
1685 int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
1686 int phy_ethtool_get_sset_count(struct phy_device *phydev);
1687 int phy_ethtool_get_stats(struct phy_device *phydev,
1688 struct ethtool_stats *stats, u64 *data);
1690 static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
1692 struct phy_package_shared *shared = phydev->shared;
1697 return mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1700 static inline int __phy_package_read(struct phy_device *phydev, u32 regnum)
1702 struct phy_package_shared *shared = phydev->shared;
1707 return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1710 static inline int phy_package_write(struct phy_device *phydev,
1711 u32 regnum, u16 val)
1713 struct phy_package_shared *shared = phydev->shared;
1718 return mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1721 static inline int __phy_package_write(struct phy_device *phydev,
1722 u32 regnum, u16 val)
1724 struct phy_package_shared *shared = phydev->shared;
1729 return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1732 static inline bool __phy_package_set_once(struct phy_device *phydev,
1735 struct phy_package_shared *shared = phydev->shared;
1740 return !test_and_set_bit(b, &shared->flags);
1743 static inline bool phy_package_init_once(struct phy_device *phydev)
1745 return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
1748 static inline bool phy_package_probe_once(struct phy_device *phydev)
1750 return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
1753 extern struct bus_type mdio_bus_type;
1755 struct mdio_board_info {
1757 char modalias[MDIO_NAME_SIZE];
1759 const void *platform_data;
1762 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
1763 int mdiobus_register_board_info(const struct mdio_board_info *info,
1766 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
1775 * phy_module_driver() - Helper macro for registering PHY drivers
1776 * @__phy_drivers: array of PHY drivers to register
1777 * @__count: Numbers of members in array
1779 * Helper macro for PHY drivers which do not do anything special in module
1780 * init/exit. Each module may only use this macro once, and calling it
1781 * replaces module_init() and module_exit().
1783 #define phy_module_driver(__phy_drivers, __count) \
1784 static int __init phy_module_init(void) \
1786 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
1788 module_init(phy_module_init); \
1789 static void __exit phy_module_exit(void) \
1791 phy_drivers_unregister(__phy_drivers, __count); \
1793 module_exit(phy_module_exit)
1795 #define module_phy_driver(__phy_drivers) \
1796 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
1798 bool phy_driver_is_genphy(struct phy_device *phydev);
1799 bool phy_driver_is_genphy_10g(struct phy_device *phydev);
1801 #endif /* __PHY_H */