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_IGNORE_INTERRUPT if
75 * the attached driver handles the interrupt
78 #define PHY_IGNORE_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_RGMII: Reduced gigabit media-independent interface
97 * @PHY_INTERFACE_MODE_RGMII_ID: RGMII with Internal RX+TX delay
98 * @PHY_INTERFACE_MODE_RGMII_RXID: RGMII with Internal RX delay
99 * @PHY_INTERFACE_MODE_RGMII_TXID: RGMII with Internal RX delay
100 * @PHY_INTERFACE_MODE_RTBI: Reduced TBI
101 * @PHY_INTERFACE_MODE_SMII: ??? MII
102 * @PHY_INTERFACE_MODE_XGMII: 10 gigabit media-independent interface
103 * @PHY_INTERFACE_MODE_XLGMII:40 gigabit media-independent interface
104 * @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax
105 * @PHY_INTERFACE_MODE_QSGMII: Quad SGMII
106 * @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII
107 * @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX
108 * @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX
109 * @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI
110 * @PHY_INTERFACE_MODE_XAUI: 10 Gigabit Attachment Unit Interface
111 * @PHY_INTERFACE_MODE_10GBASER: 10G BaseR
112 * @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII
113 * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
114 * @PHY_INTERFACE_MODE_MAX: Book keeping
116 * Describes the interface between the MAC and PHY.
119 PHY_INTERFACE_MODE_NA,
120 PHY_INTERFACE_MODE_INTERNAL,
121 PHY_INTERFACE_MODE_MII,
122 PHY_INTERFACE_MODE_GMII,
123 PHY_INTERFACE_MODE_SGMII,
124 PHY_INTERFACE_MODE_TBI,
125 PHY_INTERFACE_MODE_REVMII,
126 PHY_INTERFACE_MODE_RMII,
127 PHY_INTERFACE_MODE_RGMII,
128 PHY_INTERFACE_MODE_RGMII_ID,
129 PHY_INTERFACE_MODE_RGMII_RXID,
130 PHY_INTERFACE_MODE_RGMII_TXID,
131 PHY_INTERFACE_MODE_RTBI,
132 PHY_INTERFACE_MODE_SMII,
133 PHY_INTERFACE_MODE_XGMII,
134 PHY_INTERFACE_MODE_XLGMII,
135 PHY_INTERFACE_MODE_MOCA,
136 PHY_INTERFACE_MODE_QSGMII,
137 PHY_INTERFACE_MODE_TRGMII,
138 PHY_INTERFACE_MODE_1000BASEX,
139 PHY_INTERFACE_MODE_2500BASEX,
140 PHY_INTERFACE_MODE_RXAUI,
141 PHY_INTERFACE_MODE_XAUI,
142 /* 10GBASE-R, XFI, SFI - single lane 10G Serdes */
143 PHY_INTERFACE_MODE_10GBASER,
144 PHY_INTERFACE_MODE_USXGMII,
145 /* 10GBASE-KR - with Clause 73 AN */
146 PHY_INTERFACE_MODE_10GKR,
147 PHY_INTERFACE_MODE_MAX,
151 * phy_supported_speeds - return all speeds currently supported by a PHY device
153 unsigned int phy_supported_speeds(struct phy_device *phy,
154 unsigned int *speeds,
158 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
159 * @interface: enum phy_interface_t value
161 * Description: maps enum &phy_interface_t defined in this file
162 * into the device tree binding of 'phy-mode', so that Ethernet
163 * device driver can get PHY interface from device tree.
165 static inline const char *phy_modes(phy_interface_t interface)
168 case PHY_INTERFACE_MODE_NA:
170 case PHY_INTERFACE_MODE_INTERNAL:
172 case PHY_INTERFACE_MODE_MII:
174 case PHY_INTERFACE_MODE_GMII:
176 case PHY_INTERFACE_MODE_SGMII:
178 case PHY_INTERFACE_MODE_TBI:
180 case PHY_INTERFACE_MODE_REVMII:
182 case PHY_INTERFACE_MODE_RMII:
184 case PHY_INTERFACE_MODE_RGMII:
186 case PHY_INTERFACE_MODE_RGMII_ID:
188 case PHY_INTERFACE_MODE_RGMII_RXID:
190 case PHY_INTERFACE_MODE_RGMII_TXID:
192 case PHY_INTERFACE_MODE_RTBI:
194 case PHY_INTERFACE_MODE_SMII:
196 case PHY_INTERFACE_MODE_XGMII:
198 case PHY_INTERFACE_MODE_XLGMII:
200 case PHY_INTERFACE_MODE_MOCA:
202 case PHY_INTERFACE_MODE_QSGMII:
204 case PHY_INTERFACE_MODE_TRGMII:
206 case PHY_INTERFACE_MODE_1000BASEX:
208 case PHY_INTERFACE_MODE_2500BASEX:
210 case PHY_INTERFACE_MODE_RXAUI:
212 case PHY_INTERFACE_MODE_XAUI:
214 case PHY_INTERFACE_MODE_10GBASER:
216 case PHY_INTERFACE_MODE_USXGMII:
218 case PHY_INTERFACE_MODE_10GKR:
226 #define PHY_INIT_TIMEOUT 100000
227 #define PHY_FORCE_TIMEOUT 10
229 #define PHY_MAX_ADDR 32
231 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
232 #define PHY_ID_FMT "%s:%02x"
234 #define MII_BUS_ID_SIZE 61
239 struct sfp_upstream_ops;
243 * struct mdio_bus_stats - Statistics counters for MDIO busses
244 * @transfers: Total number of transfers, i.e. @writes + @reads
245 * @errors: Number of MDIO transfers that returned an error
246 * @writes: Number of write transfers
247 * @reads: Number of read transfers
248 * @syncp: Synchronisation for incrementing statistics
250 struct mdio_bus_stats {
251 u64_stats_t transfers;
255 /* Must be last, add new statistics above */
256 struct u64_stats_sync syncp;
260 * struct phy_package_shared - Shared information in PHY packages
261 * @addr: Common PHY address used to combine PHYs in one package
262 * @refcnt: Number of PHYs connected to this shared data
263 * @flags: Initialization of PHY package
264 * @priv_size: Size of the shared private data @priv
265 * @priv: Driver private data shared across a PHY package
267 * Represents a shared structure between different phydev's in the same
268 * package, for example a quad PHY. See phy_package_join() and
269 * phy_package_leave().
271 struct phy_package_shared {
277 /* private data pointer */
278 /* note that this pointer is shared between different phydevs and
279 * the user has to take care of appropriate locking. It is allocated
280 * and freed automatically by phy_package_join() and
281 * phy_package_leave().
286 /* used as bit number in atomic bitops */
287 #define PHY_SHARED_F_INIT_DONE 0
288 #define PHY_SHARED_F_PROBE_DONE 1
291 * struct mii_bus - Represents an MDIO bus
293 * @owner: Who owns this device
294 * @name: User friendly name for this MDIO device, or driver name
295 * @id: Unique identifier for this bus, typical from bus hierarchy
296 * @priv: Driver private data
298 * The Bus class for PHYs. Devices which provide access to
299 * PHYs should register using this structure
302 struct module *owner;
304 char id[MII_BUS_ID_SIZE];
306 /** @read: Perform a read transfer on the bus */
307 int (*read)(struct mii_bus *bus, int addr, int regnum);
308 /** @write: Perform a write transfer on the bus */
309 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
310 /** @reset: Perform a reset of the bus */
311 int (*reset)(struct mii_bus *bus);
313 /** @stats: Statistic counters per device on the bus */
314 struct mdio_bus_stats stats[PHY_MAX_ADDR];
317 * @mdio_lock: A lock to ensure that only one thing can read/write
318 * the MDIO bus at a time
320 struct mutex mdio_lock;
322 /** @parent: Parent device of this bus */
323 struct device *parent;
324 /** @state: State of bus structure */
326 MDIOBUS_ALLOCATED = 1,
328 MDIOBUS_UNREGISTERED,
332 /** @dev: Kernel device representation */
335 /** @mdio_map: list of all MDIO devices on bus */
336 struct mdio_device *mdio_map[PHY_MAX_ADDR];
338 /** @phy_mask: PHY addresses to be ignored when probing */
341 /** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */
342 u32 phy_ignore_ta_mask;
345 * @irq: An array of interrupts, each PHY's interrupt at the index
346 * matching its address
348 int irq[PHY_MAX_ADDR];
350 /** @reset_delay_us: GPIO reset pulse width in microseconds */
352 /** @reset_post_delay_us: GPIO reset deassert delay in microseconds */
353 int reset_post_delay_us;
354 /** @reset_gpiod: Reset GPIO descriptor pointer */
355 struct gpio_desc *reset_gpiod;
357 /** @probe_capabilities: bus capabilities, used for probing */
363 } probe_capabilities;
365 /** @shared_lock: protect access to the shared element */
366 struct mutex shared_lock;
368 /** @shared: shared state across different PHYs */
369 struct phy_package_shared *shared[PHY_MAX_ADDR];
371 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
373 struct mii_bus *mdiobus_alloc_size(size_t size);
376 * mdiobus_alloc - Allocate an MDIO bus structure
378 * The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready
379 * for the driver to register the bus.
381 static inline struct mii_bus *mdiobus_alloc(void)
383 return mdiobus_alloc_size(0);
386 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
387 int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
388 struct module *owner);
389 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
390 #define devm_mdiobus_register(dev, bus) \
391 __devm_mdiobus_register(dev, bus, THIS_MODULE)
393 void mdiobus_unregister(struct mii_bus *bus);
394 void mdiobus_free(struct mii_bus *bus);
395 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
396 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
398 return devm_mdiobus_alloc_size(dev, 0);
401 struct mii_bus *mdio_find_bus(const char *mdio_name);
402 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
404 #define PHY_INTERRUPT_DISABLED false
405 #define PHY_INTERRUPT_ENABLED true
408 * enum phy_state - PHY state machine states:
410 * @PHY_DOWN: PHY device and driver are not ready for anything. probe
411 * should be called if and only if the PHY is in this state,
412 * given that the PHY device exists.
413 * - PHY driver probe function will set the state to @PHY_READY
415 * @PHY_READY: PHY is ready to send and receive packets, but the
416 * controller is not. By default, PHYs which do not implement
417 * probe will be set to this state by phy_probe().
418 * - start will set the state to UP
420 * @PHY_UP: The PHY and attached device are ready to do work.
421 * Interrupts should be started here.
422 * - timer moves to @PHY_NOLINK or @PHY_RUNNING
424 * @PHY_NOLINK: PHY is up, but not currently plugged in.
425 * - irq or timer will set @PHY_RUNNING if link comes back
426 * - phy_stop moves to @PHY_HALTED
428 * @PHY_RUNNING: PHY is currently up, running, and possibly sending
429 * and/or receiving packets
430 * - irq or timer will set @PHY_NOLINK if link goes down
431 * - phy_stop moves to @PHY_HALTED
433 * @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending
434 * is not expected to work, carrier will be indicated as down. PHY will be
435 * poll once per second, or on interrupt for it current state.
436 * Once complete, move to UP to restart the PHY.
437 * - phy_stop aborts the running test and moves to @PHY_HALTED
439 * @PHY_HALTED: PHY is up, but no polling or interrupts are done. Or
440 * PHY is in an error state.
441 * - phy_start moves to @PHY_UP
453 #define MDIO_MMD_NUM 32
456 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
457 * @devices_in_package: IEEE 802.3 devices in package register value.
458 * @mmds_present: bit vector of MMDs present.
459 * @device_ids: The device identifer for each present device.
461 struct phy_c45_device_ids {
462 u32 devices_in_package;
464 u32 device_ids[MDIO_MMD_NUM];
467 struct macsec_context;
471 * struct phy_device - An instance of a PHY
473 * @mdio: MDIO bus this PHY is on
474 * @drv: Pointer to the driver for this PHY instance
475 * @phy_id: UID for this device found during discovery
476 * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
477 * @is_c45: Set to true if this PHY uses clause 45 addressing.
478 * @is_internal: Set to true if this PHY is internal to a MAC.
479 * @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc.
480 * @is_gigabit_capable: Set to true if PHY supports 1000Mbps
481 * @has_fixups: Set to true if this PHY has fixups/quirks.
482 * @suspended: Set to true if this PHY has been suspended successfully.
483 * @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus.
484 * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
485 * @loopback_enabled: Set true if this PHY has been loopbacked successfully.
486 * @downshifted_rate: Set true if link speed has been downshifted.
487 * @state: State of the PHY for management purposes
488 * @dev_flags: Device-specific flags used by the PHY driver.
489 * @irq: IRQ number of the PHY's interrupt (-1 if none)
490 * @phy_timer: The timer for handling the state machine
491 * @phylink: Pointer to phylink instance for this PHY
492 * @sfp_bus_attached: Flag indicating whether the SFP bus has been attached
493 * @sfp_bus: SFP bus attached to this PHY's fiber port
494 * @attached_dev: The attached enet driver's device instance ptr
495 * @adjust_link: Callback for the enet controller to respond to changes: in the
497 * @phy_link_change: Callback for phylink for notification of link change
498 * @macsec_ops: MACsec offloading ops.
500 * @speed: Current link speed
501 * @duplex: Current duplex
502 * @port: Current port
503 * @pause: Current pause
504 * @asym_pause: Current asymmetric pause
505 * @supported: Combined MAC/PHY supported linkmodes
506 * @advertising: Currently advertised linkmodes
507 * @adv_old: Saved advertised while power saving for WoL
508 * @lp_advertising: Current link partner advertised linkmodes
509 * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
510 * @autoneg: Flag autoneg being used
511 * @link: Current link state
512 * @autoneg_complete: Flag auto negotiation of the link has completed
513 * @mdix: Current crossover
514 * @mdix_ctrl: User setting of crossover
515 * @interrupts: Flag interrupts have been enabled
516 * @interface: enum phy_interface_t value
517 * @skb: Netlink message for cable diagnostics
518 * @nest: Netlink nest used for cable diagnostics
519 * @ehdr: nNtlink header for cable diagnostics
520 * @phy_led_triggers: Array of LED triggers
521 * @phy_num_led_triggers: Number of triggers in @phy_led_triggers
522 * @led_link_trigger: LED trigger for link up/down
523 * @last_triggered: last LED trigger for link speed
524 * @master_slave_set: User requested master/slave configuration
525 * @master_slave_get: Current master/slave advertisement
526 * @master_slave_state: Current master/slave configuration
527 * @mii_ts: Pointer to time stamper callbacks
528 * @lock: Mutex for serialization access to PHY
529 * @state_queue: Work queue for state machine
530 * @shared: Pointer to private data shared by phys in one package
531 * @priv: Pointer to driver private data
533 * interrupts currently only supports enabled or disabled,
534 * but could be changed in the future to support enabling
535 * and disabling specific interrupts
537 * Contains some infrastructure for polling and interrupt
538 * handling, as well as handling shifts in PHY hardware state
541 struct mdio_device mdio;
543 /* Information about the PHY type */
544 /* And management functions */
545 struct phy_driver *drv;
549 struct phy_c45_device_ids c45_ids;
551 unsigned is_internal:1;
552 unsigned is_pseudo_fixed_link:1;
553 unsigned is_gigabit_capable:1;
554 unsigned has_fixups:1;
555 unsigned suspended:1;
556 unsigned suspended_by_mdio_bus:1;
557 unsigned sysfs_links:1;
558 unsigned loopback_enabled:1;
559 unsigned downshifted_rate:1;
562 /* The most recently read link state */
564 unsigned autoneg_complete:1;
566 /* Interrupts are enabled */
567 unsigned interrupts:1;
569 enum phy_state state;
573 phy_interface_t interface;
576 * forced speed & duplex (no autoneg)
577 * partner speed & duplex & pause (autoneg)
586 u8 master_slave_state;
588 /* Union of PHY and Attached devices' supported link modes */
589 /* See ethtool.h for more info */
590 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
591 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
592 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
593 /* used with phy_speed_down */
594 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
596 /* Energy efficient ethernet modes which should be prohibited */
597 u32 eee_broken_modes;
599 #ifdef CONFIG_LED_TRIGGER_PHY
600 struct phy_led_trigger *phy_led_triggers;
601 unsigned int phy_num_led_triggers;
602 struct phy_led_trigger *last_triggered;
604 struct phy_led_trigger *led_link_trigger;
608 * Interrupt number for this PHY
609 * -1 means no interrupt
613 /* private data pointer */
614 /* For use by PHYs to maintain extra state */
617 /* shared data pointer */
618 /* For use by PHYs inside the same package that need a shared state. */
619 struct phy_package_shared *shared;
621 /* Reporting cable test results */
626 /* Interrupt and Polling infrastructure */
627 struct delayed_work state_queue;
631 /* This may be modified under the rtnl lock */
632 bool sfp_bus_attached;
633 struct sfp_bus *sfp_bus;
634 struct phylink *phylink;
635 struct net_device *attached_dev;
636 struct mii_timestamper *mii_ts;
641 void (*phy_link_change)(struct phy_device *phydev, bool up);
642 void (*adjust_link)(struct net_device *dev);
644 #if IS_ENABLED(CONFIG_MACSEC)
645 /* MACsec management functions */
646 const struct macsec_ops *macsec_ops;
649 #define to_phy_device(d) container_of(to_mdio_device(d), \
650 struct phy_device, mdio)
653 * struct phy_tdr_config - Configuration of a TDR raw test
655 * @first: Distance for first data collection point
656 * @last: Distance for last data collection point
657 * @step: Step between data collection points
658 * @pair: Bitmap of cable pairs to collect data for
660 * A structure containing possible configuration parameters
661 * for a TDR cable test. The driver does not need to implement
662 * all the parameters, but should report what is actually used.
663 * All distances are in centimeters.
665 struct phy_tdr_config {
671 #define PHY_PAIR_ALL -1
674 * struct phy_driver - Driver structure for a particular PHY type
676 * @mdiodrv: Data common to all MDIO devices
677 * @phy_id: The result of reading the UID registers of this PHY
678 * type, and ANDing them with the phy_id_mask. This driver
679 * only works for PHYs with IDs which match this field
680 * @name: The friendly name of this PHY type
681 * @phy_id_mask: Defines the important bits of the phy_id
682 * @features: A mandatory list of features (speed, duplex, etc)
683 * supported by this PHY
684 * @flags: A bitfield defining certain other features this PHY
685 * supports (like interrupts)
686 * @driver_data: Static driver data
688 * All functions are optional. If config_aneg or read_status
689 * are not implemented, the phy core uses the genphy versions.
690 * Note that none of these functions should be called from
691 * interrupt time. The goal is for the bus read/write functions
692 * to be able to block when the bus transaction is happening,
693 * and be freed up by an interrupt (The MPC85xx has this ability,
694 * though it is not currently supported in the driver).
697 struct mdio_driver_common mdiodrv;
701 const unsigned long * const features;
703 const void *driver_data;
706 * @soft_reset: Called to issue a PHY software reset
708 int (*soft_reset)(struct phy_device *phydev);
711 * @config_init: Called to initialize the PHY,
712 * including after a reset
714 int (*config_init)(struct phy_device *phydev);
717 * @probe: Called during discovery. Used to set
718 * up device-specific structures, if any
720 int (*probe)(struct phy_device *phydev);
723 * @get_features: Probe the hardware to determine what
724 * abilities it has. Should only set phydev->supported.
726 int (*get_features)(struct phy_device *phydev);
728 /* PHY Power Management */
729 /** @suspend: Suspend the hardware, saving state if needed */
730 int (*suspend)(struct phy_device *phydev);
731 /** @resume: Resume the hardware, restoring state if needed */
732 int (*resume)(struct phy_device *phydev);
735 * @config_aneg: Configures the advertisement and resets
736 * autonegotiation if phydev->autoneg is on,
737 * forces the speed to the current settings in phydev
738 * if phydev->autoneg is off
740 int (*config_aneg)(struct phy_device *phydev);
742 /** @aneg_done: Determines the auto negotiation result */
743 int (*aneg_done)(struct phy_device *phydev);
745 /** @read_status: Determines the negotiated speed and duplex */
746 int (*read_status)(struct phy_device *phydev);
748 /** @ack_interrupt: Clears any pending interrupts */
749 int (*ack_interrupt)(struct phy_device *phydev);
751 /** @config_intr: Enables or disables interrupts */
752 int (*config_intr)(struct phy_device *phydev);
755 * @did_interrupt: Checks if the PHY generated an interrupt.
756 * For multi-PHY devices with shared PHY interrupt pin
757 * Set interrupt bits have to be cleared.
759 int (*did_interrupt)(struct phy_device *phydev);
761 /** @handle_interrupt: Override default interrupt handling */
762 irqreturn_t (*handle_interrupt)(struct phy_device *phydev);
764 /** @remove: Clears up any memory if needed */
765 void (*remove)(struct phy_device *phydev);
768 * @match_phy_device: Returns true if this is a suitable
769 * driver for the given phydev. If NULL, matching is based on
770 * phy_id and phy_id_mask.
772 int (*match_phy_device)(struct phy_device *phydev);
775 * @set_wol: Some devices (e.g. qnap TS-119P II) require PHY
776 * register changes to enable Wake on LAN, so set_wol is
777 * provided to be called in the ethernet driver's set_wol
780 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
783 * @get_wol: See set_wol, but for checking whether Wake on LAN
786 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
789 * @link_change_notify: Called to inform a PHY device driver
790 * when the core is about to change the link state. This
791 * callback is supposed to be used as fixup hook for drivers
792 * that need to take action when the link state
793 * changes. Drivers are by no means allowed to mess with the
794 * PHY device structure in their implementations.
796 void (*link_change_notify)(struct phy_device *dev);
799 * @read_mmd: PHY specific driver override for reading a MMD
800 * register. This function is optional for PHY specific
801 * drivers. When not provided, the default MMD read function
802 * will be used by phy_read_mmd(), which will use either a
803 * direct read for Clause 45 PHYs or an indirect read for
804 * Clause 22 PHYs. devnum is the MMD device number within the
805 * PHY device, regnum is the register within the selected MMD
808 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
811 * @write_mmd: PHY specific driver override for writing a MMD
812 * register. This function is optional for PHY specific
813 * drivers. When not provided, the default MMD write function
814 * will be used by phy_write_mmd(), which will use either a
815 * direct write for Clause 45 PHYs, or an indirect write for
816 * Clause 22 PHYs. devnum is the MMD device number within the
817 * PHY device, regnum is the register within the selected MMD
818 * device. val is the value to be written.
820 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
823 /** @read_page: Return the current PHY register page number */
824 int (*read_page)(struct phy_device *dev);
825 /** @write_page: Set the current PHY register page number */
826 int (*write_page)(struct phy_device *dev, int page);
829 * @module_info: Get the size and type of the eeprom contained
830 * within a plug-in module
832 int (*module_info)(struct phy_device *dev,
833 struct ethtool_modinfo *modinfo);
836 * @module_eeprom: Get the eeprom information from the plug-in
839 int (*module_eeprom)(struct phy_device *dev,
840 struct ethtool_eeprom *ee, u8 *data);
842 /** @cable_test_start: Start a cable test */
843 int (*cable_test_start)(struct phy_device *dev);
845 /** @cable_test_tdr_start: Start a raw TDR cable test */
846 int (*cable_test_tdr_start)(struct phy_device *dev,
847 const struct phy_tdr_config *config);
850 * @cable_test_get_status: Once per second, or on interrupt,
851 * request the status of the test.
853 int (*cable_test_get_status)(struct phy_device *dev, bool *finished);
855 /* Get statistics from the PHY using ethtool */
856 /** @get_sset_count: Number of statistic counters */
857 int (*get_sset_count)(struct phy_device *dev);
858 /** @get_strings: Names of the statistic counters */
859 void (*get_strings)(struct phy_device *dev, u8 *data);
860 /** @get_stats: Return the statistic counter values */
861 void (*get_stats)(struct phy_device *dev,
862 struct ethtool_stats *stats, u64 *data);
864 /* Get and Set PHY tunables */
865 /** @get_tunable: Return the value of a tunable */
866 int (*get_tunable)(struct phy_device *dev,
867 struct ethtool_tunable *tuna, void *data);
868 /** @set_tunable: Set the value of a tunable */
869 int (*set_tunable)(struct phy_device *dev,
870 struct ethtool_tunable *tuna,
872 /** @set_loopback: Set the loopback mood of the PHY */
873 int (*set_loopback)(struct phy_device *dev, bool enable);
874 /** @get_sqi: Get the signal quality indication */
875 int (*get_sqi)(struct phy_device *dev);
876 /** @get_sqi_max: Get the maximum signal quality indication */
877 int (*get_sqi_max)(struct phy_device *dev);
879 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
880 struct phy_driver, mdiodrv)
882 #define PHY_ANY_ID "MATCH ANY PHY"
883 #define PHY_ANY_UID 0xffffffff
885 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
886 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
887 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
889 /* A Structure for boards to register fixups with the PHY Lib */
891 struct list_head list;
892 char bus_id[MII_BUS_ID_SIZE + 3];
895 int (*run)(struct phy_device *phydev);
898 const char *phy_speed_to_str(int speed);
899 const char *phy_duplex_to_str(unsigned int duplex);
901 /* A structure for mapping a particular speed and duplex
902 * combination to a particular SUPPORTED and ADVERTISED value
910 const struct phy_setting *
911 phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
913 size_t phy_speeds(unsigned int *speeds, size_t size,
914 unsigned long *mask);
915 void of_set_phy_supported(struct phy_device *phydev);
916 void of_set_phy_eee_broken(struct phy_device *phydev);
917 int phy_speed_down_core(struct phy_device *phydev);
920 * phy_is_started - Convenience function to check whether PHY is started
921 * @phydev: The phy_device struct
923 static inline bool phy_is_started(struct phy_device *phydev)
925 return phydev->state >= PHY_UP;
928 void phy_resolve_aneg_pause(struct phy_device *phydev);
929 void phy_resolve_aneg_linkmode(struct phy_device *phydev);
930 void phy_check_downshift(struct phy_device *phydev);
933 * phy_read - Convenience function for reading a given PHY register
934 * @phydev: the phy_device struct
935 * @regnum: register number to read
937 * NOTE: MUST NOT be called from interrupt context,
938 * because the bus read/write functions may wait for an interrupt
939 * to conclude the operation.
941 static inline int phy_read(struct phy_device *phydev, u32 regnum)
943 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
946 #define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \
947 timeout_us, sleep_before_read) \
949 int __ret = read_poll_timeout(phy_read, val, (cond) || val < 0, \
950 sleep_us, timeout_us, sleep_before_read, phydev, regnum); \
954 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
960 * __phy_read - convenience function for reading a given PHY register
961 * @phydev: the phy_device struct
962 * @regnum: register number to read
964 * The caller must have taken the MDIO bus lock.
966 static inline int __phy_read(struct phy_device *phydev, u32 regnum)
968 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
972 * phy_write - Convenience function for writing a given PHY register
973 * @phydev: the phy_device struct
974 * @regnum: register number to write
975 * @val: value to write to @regnum
977 * NOTE: MUST NOT be called from interrupt context,
978 * because the bus read/write functions may wait for an interrupt
979 * to conclude the operation.
981 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
983 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
987 * __phy_write - Convenience function for writing a given PHY register
988 * @phydev: the phy_device struct
989 * @regnum: register number to write
990 * @val: value to write to @regnum
992 * The caller must have taken the MDIO bus lock.
994 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
996 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
1001 * __phy_modify_changed() - Convenience function for modifying a PHY register
1002 * @phydev: a pointer to a &struct phy_device
1003 * @regnum: register number
1004 * @mask: bit mask of bits to clear
1005 * @set: bit mask of bits to set
1007 * Unlocked helper function which allows a PHY register to be modified as
1008 * new register value = (old register value & ~mask) | set
1010 * Returns negative errno, 0 if there was no change, and 1 in case of change
1012 static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum,
1015 return __mdiobus_modify_changed(phydev->mdio.bus, phydev->mdio.addr,
1020 * phy_read_mmd - Convenience function for reading a register
1021 * from an MMD on a given PHY.
1023 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1026 * phy_read_mmd_poll_timeout - Periodically poll a PHY register until a
1027 * condition is met or a timeout occurs
1029 * @phydev: The phy_device struct
1030 * @devaddr: The MMD to read from
1031 * @regnum: The register on the MMD to read
1032 * @val: Variable to read the register into
1033 * @cond: Break condition (usually involving @val)
1034 * @sleep_us: Maximum time to sleep between reads in us (0
1035 * tight-loops). Should be less than ~20ms since usleep_range
1036 * is used (see Documentation/timers/timers-howto.rst).
1037 * @timeout_us: Timeout in us, 0 means never timeout
1038 * @sleep_before_read: if it is true, sleep @sleep_us before read.
1039 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either
1040 * case, the last read value at @args is stored in @val. Must not
1041 * be called from atomic context if sleep_us or timeout_us are used.
1043 #define phy_read_mmd_poll_timeout(phydev, devaddr, regnum, val, cond, \
1044 sleep_us, timeout_us, sleep_before_read) \
1046 int __ret = read_poll_timeout(phy_read_mmd, val, (cond) || val < 0, \
1047 sleep_us, timeout_us, sleep_before_read, \
1048 phydev, devaddr, regnum); \
1052 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1057 * __phy_read_mmd - Convenience function for reading a register
1058 * from an MMD on a given PHY.
1060 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1063 * phy_write_mmd - Convenience function for writing a register
1064 * on an MMD on a given PHY.
1066 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1069 * __phy_write_mmd - Convenience function for writing a register
1070 * on an MMD on a given PHY.
1072 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1074 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1076 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1078 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1079 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1081 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1083 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1085 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1087 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1091 * __phy_set_bits - Convenience function for setting bits in a PHY register
1092 * @phydev: the phy_device struct
1093 * @regnum: register number to write
1096 * The caller must have taken the MDIO bus lock.
1098 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1100 return __phy_modify(phydev, regnum, 0, val);
1104 * __phy_clear_bits - Convenience function for clearing bits in a PHY register
1105 * @phydev: the phy_device struct
1106 * @regnum: register number to write
1107 * @val: bits to clear
1109 * The caller must have taken the MDIO bus lock.
1111 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
1114 return __phy_modify(phydev, regnum, val, 0);
1118 * phy_set_bits - Convenience function for setting bits in a PHY register
1119 * @phydev: the phy_device struct
1120 * @regnum: register number to write
1123 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1125 return phy_modify(phydev, regnum, 0, val);
1129 * phy_clear_bits - Convenience function for clearing bits in a PHY register
1130 * @phydev: the phy_device struct
1131 * @regnum: register number to write
1132 * @val: bits to clear
1134 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
1136 return phy_modify(phydev, regnum, val, 0);
1140 * __phy_set_bits_mmd - Convenience function for setting bits in a register
1142 * @phydev: the phy_device struct
1143 * @devad: the MMD containing register to modify
1144 * @regnum: register number to modify
1147 * The caller must have taken the MDIO bus lock.
1149 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad,
1150 u32 regnum, u16 val)
1152 return __phy_modify_mmd(phydev, devad, regnum, 0, val);
1156 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register
1158 * @phydev: the phy_device struct
1159 * @devad: the MMD containing register to modify
1160 * @regnum: register number to modify
1161 * @val: bits to clear
1163 * The caller must have taken the MDIO bus lock.
1165 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1166 u32 regnum, u16 val)
1168 return __phy_modify_mmd(phydev, devad, regnum, val, 0);
1172 * phy_set_bits_mmd - Convenience function for setting bits in a register
1174 * @phydev: the phy_device struct
1175 * @devad: the MMD containing register to modify
1176 * @regnum: register number to modify
1179 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad,
1180 u32 regnum, u16 val)
1182 return phy_modify_mmd(phydev, devad, regnum, 0, val);
1186 * phy_clear_bits_mmd - Convenience function for clearing bits in a register
1188 * @phydev: the phy_device struct
1189 * @devad: the MMD containing register to modify
1190 * @regnum: register number to modify
1191 * @val: bits to clear
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_interrupt_is_valid - Convenience function for testing a given PHY irq
1201 * @phydev: the phy_device struct
1203 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
1204 * PHY_IGNORE_INTERRUPT
1206 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
1208 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
1212 * phy_polling_mode - Convenience function for testing whether polling is
1213 * used to detect PHY status changes
1214 * @phydev: the phy_device struct
1216 static inline bool phy_polling_mode(struct phy_device *phydev)
1218 if (phydev->state == PHY_CABLETEST)
1219 if (phydev->drv->flags & PHY_POLL_CABLE_TEST)
1222 return phydev->irq == PHY_POLL;
1226 * phy_has_hwtstamp - Tests whether a PHY time stamp configuration.
1227 * @phydev: the phy_device struct
1229 static inline bool phy_has_hwtstamp(struct phy_device *phydev)
1231 return phydev && phydev->mii_ts && phydev->mii_ts->hwtstamp;
1235 * phy_has_rxtstamp - Tests whether a PHY supports receive time stamping.
1236 * @phydev: the phy_device struct
1238 static inline bool phy_has_rxtstamp(struct phy_device *phydev)
1240 return phydev && phydev->mii_ts && phydev->mii_ts->rxtstamp;
1244 * phy_has_tsinfo - Tests whether a PHY reports time stamping and/or
1245 * PTP hardware clock capabilities.
1246 * @phydev: the phy_device struct
1248 static inline bool phy_has_tsinfo(struct phy_device *phydev)
1250 return phydev && phydev->mii_ts && phydev->mii_ts->ts_info;
1254 * phy_has_txtstamp - Tests whether a PHY supports transmit time stamping.
1255 * @phydev: the phy_device struct
1257 static inline bool phy_has_txtstamp(struct phy_device *phydev)
1259 return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp;
1262 static inline int phy_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
1264 return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
1267 static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb,
1270 return phydev->mii_ts->rxtstamp(phydev->mii_ts, skb, type);
1273 static inline int phy_ts_info(struct phy_device *phydev,
1274 struct ethtool_ts_info *tsinfo)
1276 return phydev->mii_ts->ts_info(phydev->mii_ts, tsinfo);
1279 static inline void phy_txtstamp(struct phy_device *phydev, struct sk_buff *skb,
1282 phydev->mii_ts->txtstamp(phydev->mii_ts, skb, type);
1286 * phy_is_internal - Convenience function for testing if a PHY is internal
1287 * @phydev: the phy_device struct
1289 static inline bool phy_is_internal(struct phy_device *phydev)
1291 return phydev->is_internal;
1295 * phy_interface_mode_is_rgmii - Convenience function for testing if a
1296 * PHY interface mode is RGMII (all variants)
1297 * @mode: the &phy_interface_t enum
1299 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
1301 return mode >= PHY_INTERFACE_MODE_RGMII &&
1302 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
1306 * phy_interface_mode_is_8023z() - does the PHY interface mode use 802.3z
1308 * @mode: one of &enum phy_interface_t
1310 * Returns true if the PHY interface mode uses the 16-bit negotiation
1311 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding)
1313 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode)
1315 return mode == PHY_INTERFACE_MODE_1000BASEX ||
1316 mode == PHY_INTERFACE_MODE_2500BASEX;
1320 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
1321 * is RGMII (all variants)
1322 * @phydev: the phy_device struct
1324 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
1326 return phy_interface_mode_is_rgmii(phydev->interface);
1330 * phy_is_pseudo_fixed_link - Convenience function for testing if this
1331 * PHY is the CPU port facing side of an Ethernet switch, or similar.
1332 * @phydev: the phy_device struct
1334 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
1336 return phydev->is_pseudo_fixed_link;
1339 int phy_save_page(struct phy_device *phydev);
1340 int phy_select_page(struct phy_device *phydev, int page);
1341 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret);
1342 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum);
1343 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val);
1344 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum,
1346 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum,
1349 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
1351 struct phy_c45_device_ids *c45_ids);
1352 #if IS_ENABLED(CONFIG_PHYLIB)
1353 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
1354 int phy_device_register(struct phy_device *phy);
1355 void phy_device_free(struct phy_device *phydev);
1358 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
1363 static inline int phy_device_register(struct phy_device *phy)
1368 static inline void phy_device_free(struct phy_device *phydev) { }
1369 #endif /* CONFIG_PHYLIB */
1370 void phy_device_remove(struct phy_device *phydev);
1371 int phy_init_hw(struct phy_device *phydev);
1372 int phy_suspend(struct phy_device *phydev);
1373 int phy_resume(struct phy_device *phydev);
1374 int __phy_resume(struct phy_device *phydev);
1375 int phy_loopback(struct phy_device *phydev, bool enable);
1376 void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
1377 void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
1378 int phy_sfp_probe(struct phy_device *phydev,
1379 const struct sfp_upstream_ops *ops);
1380 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
1381 phy_interface_t interface);
1382 struct phy_device *phy_find_first(struct mii_bus *bus);
1383 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
1384 u32 flags, phy_interface_t interface);
1385 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
1386 void (*handler)(struct net_device *),
1387 phy_interface_t interface);
1388 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
1389 void (*handler)(struct net_device *),
1390 phy_interface_t interface);
1391 void phy_disconnect(struct phy_device *phydev);
1392 void phy_detach(struct phy_device *phydev);
1393 void phy_start(struct phy_device *phydev);
1394 void phy_stop(struct phy_device *phydev);
1395 int phy_start_aneg(struct phy_device *phydev);
1396 int phy_aneg_done(struct phy_device *phydev);
1397 int phy_speed_down(struct phy_device *phydev, bool sync);
1398 int phy_speed_up(struct phy_device *phydev);
1400 int phy_restart_aneg(struct phy_device *phydev);
1401 int phy_reset_after_clk_enable(struct phy_device *phydev);
1403 #if IS_ENABLED(CONFIG_PHYLIB)
1404 int phy_start_cable_test(struct phy_device *phydev,
1405 struct netlink_ext_ack *extack);
1406 int phy_start_cable_test_tdr(struct phy_device *phydev,
1407 struct netlink_ext_ack *extack,
1408 const struct phy_tdr_config *config);
1411 int phy_start_cable_test(struct phy_device *phydev,
1412 struct netlink_ext_ack *extack)
1414 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1418 int phy_start_cable_test_tdr(struct phy_device *phydev,
1419 struct netlink_ext_ack *extack,
1420 const struct phy_tdr_config *config)
1422 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1427 int phy_cable_test_result(struct phy_device *phydev, u8 pair, u16 result);
1428 int phy_cable_test_fault_length(struct phy_device *phydev, u8 pair,
1431 static inline void phy_device_reset(struct phy_device *phydev, int value)
1433 mdio_device_reset(&phydev->mdio, value);
1436 #define phydev_err(_phydev, format, args...) \
1437 dev_err(&_phydev->mdio.dev, format, ##args)
1439 #define phydev_info(_phydev, format, args...) \
1440 dev_info(&_phydev->mdio.dev, format, ##args)
1442 #define phydev_warn(_phydev, format, args...) \
1443 dev_warn(&_phydev->mdio.dev, format, ##args)
1445 #define phydev_dbg(_phydev, format, args...) \
1446 dev_dbg(&_phydev->mdio.dev, format, ##args)
1448 static inline const char *phydev_name(const struct phy_device *phydev)
1450 return dev_name(&phydev->mdio.dev);
1453 static inline void phy_lock_mdio_bus(struct phy_device *phydev)
1455 mutex_lock(&phydev->mdio.bus->mdio_lock);
1458 static inline void phy_unlock_mdio_bus(struct phy_device *phydev)
1460 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1463 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
1465 char *phy_attached_info_irq(struct phy_device *phydev)
1467 void phy_attached_info(struct phy_device *phydev);
1470 int genphy_read_abilities(struct phy_device *phydev);
1471 int genphy_setup_forced(struct phy_device *phydev);
1472 int genphy_restart_aneg(struct phy_device *phydev);
1473 int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1474 int genphy_config_eee_advert(struct phy_device *phydev);
1475 int __genphy_config_aneg(struct phy_device *phydev, bool changed);
1476 int genphy_aneg_done(struct phy_device *phydev);
1477 int genphy_update_link(struct phy_device *phydev);
1478 int genphy_read_lpa(struct phy_device *phydev);
1479 int genphy_read_status_fixed(struct phy_device *phydev);
1480 int genphy_read_status(struct phy_device *phydev);
1481 int genphy_suspend(struct phy_device *phydev);
1482 int genphy_resume(struct phy_device *phydev);
1483 int genphy_loopback(struct phy_device *phydev, bool enable);
1484 int genphy_soft_reset(struct phy_device *phydev);
1486 static inline int genphy_config_aneg(struct phy_device *phydev)
1488 return __genphy_config_aneg(phydev, false);
1491 static inline int genphy_no_ack_interrupt(struct phy_device *phydev)
1495 static inline int genphy_no_config_intr(struct phy_device *phydev)
1499 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
1501 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
1502 u16 regnum, u16 val);
1505 int genphy_c37_config_aneg(struct phy_device *phydev);
1506 int genphy_c37_read_status(struct phy_device *phydev);
1509 int genphy_c45_restart_aneg(struct phy_device *phydev);
1510 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1511 int genphy_c45_aneg_done(struct phy_device *phydev);
1512 int genphy_c45_read_link(struct phy_device *phydev);
1513 int genphy_c45_read_lpa(struct phy_device *phydev);
1514 int genphy_c45_read_pma(struct phy_device *phydev);
1515 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
1516 int genphy_c45_an_config_aneg(struct phy_device *phydev);
1517 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
1518 int genphy_c45_read_mdix(struct phy_device *phydev);
1519 int genphy_c45_pma_read_abilities(struct phy_device *phydev);
1520 int genphy_c45_read_status(struct phy_device *phydev);
1521 int genphy_c45_config_aneg(struct phy_device *phydev);
1523 /* Generic C45 PHY driver */
1524 extern struct phy_driver genphy_c45_driver;
1526 /* The gen10g_* functions are the old Clause 45 stub */
1527 int gen10g_config_aneg(struct phy_device *phydev);
1529 static inline int phy_read_status(struct phy_device *phydev)
1534 if (phydev->drv->read_status)
1535 return phydev->drv->read_status(phydev);
1537 return genphy_read_status(phydev);
1540 void phy_driver_unregister(struct phy_driver *drv);
1541 void phy_drivers_unregister(struct phy_driver *drv, int n);
1542 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
1543 int phy_drivers_register(struct phy_driver *new_driver, int n,
1544 struct module *owner);
1545 void phy_state_machine(struct work_struct *work);
1546 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
1547 void phy_mac_interrupt(struct phy_device *phydev);
1548 void phy_start_machine(struct phy_device *phydev);
1549 void phy_stop_machine(struct phy_device *phydev);
1550 void phy_ethtool_ksettings_get(struct phy_device *phydev,
1551 struct ethtool_link_ksettings *cmd);
1552 int phy_ethtool_ksettings_set(struct phy_device *phydev,
1553 const struct ethtool_link_ksettings *cmd);
1554 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
1555 int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
1556 int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
1557 int phy_disable_interrupts(struct phy_device *phydev);
1558 void phy_request_interrupt(struct phy_device *phydev);
1559 void phy_free_interrupt(struct phy_device *phydev);
1560 void phy_print_status(struct phy_device *phydev);
1561 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
1562 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
1563 void phy_advertise_supported(struct phy_device *phydev);
1564 void phy_support_sym_pause(struct phy_device *phydev);
1565 void phy_support_asym_pause(struct phy_device *phydev);
1566 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
1568 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
1569 bool phy_validate_pause(struct phy_device *phydev,
1570 struct ethtool_pauseparam *pp);
1571 void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
1573 s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
1574 const int *delay_values, int size, bool is_rx);
1576 void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
1577 bool *tx_pause, bool *rx_pause);
1579 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
1580 int (*run)(struct phy_device *));
1581 int phy_register_fixup_for_id(const char *bus_id,
1582 int (*run)(struct phy_device *));
1583 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
1584 int (*run)(struct phy_device *));
1586 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
1587 int phy_unregister_fixup_for_id(const char *bus_id);
1588 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
1590 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
1591 int phy_get_eee_err(struct phy_device *phydev);
1592 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
1593 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
1594 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
1595 void phy_ethtool_get_wol(struct phy_device *phydev,
1596 struct ethtool_wolinfo *wol);
1597 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
1598 struct ethtool_link_ksettings *cmd);
1599 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
1600 const struct ethtool_link_ksettings *cmd);
1601 int phy_ethtool_nway_reset(struct net_device *ndev);
1602 int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size);
1603 void phy_package_leave(struct phy_device *phydev);
1604 int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
1605 int addr, size_t priv_size);
1607 #if IS_ENABLED(CONFIG_PHYLIB)
1608 int __init mdio_bus_init(void);
1609 void mdio_bus_exit(void);
1612 int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
1613 int phy_ethtool_get_sset_count(struct phy_device *phydev);
1614 int phy_ethtool_get_stats(struct phy_device *phydev,
1615 struct ethtool_stats *stats, u64 *data);
1617 static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
1619 struct phy_package_shared *shared = phydev->shared;
1624 return mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1627 static inline int __phy_package_read(struct phy_device *phydev, u32 regnum)
1629 struct phy_package_shared *shared = phydev->shared;
1634 return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1637 static inline int phy_package_write(struct phy_device *phydev,
1638 u32 regnum, u16 val)
1640 struct phy_package_shared *shared = phydev->shared;
1645 return mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1648 static inline int __phy_package_write(struct phy_device *phydev,
1649 u32 regnum, u16 val)
1651 struct phy_package_shared *shared = phydev->shared;
1656 return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1659 static inline bool __phy_package_set_once(struct phy_device *phydev,
1662 struct phy_package_shared *shared = phydev->shared;
1667 return !test_and_set_bit(b, &shared->flags);
1670 static inline bool phy_package_init_once(struct phy_device *phydev)
1672 return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
1675 static inline bool phy_package_probe_once(struct phy_device *phydev)
1677 return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
1680 extern struct bus_type mdio_bus_type;
1682 struct mdio_board_info {
1684 char modalias[MDIO_NAME_SIZE];
1686 const void *platform_data;
1689 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
1690 int mdiobus_register_board_info(const struct mdio_board_info *info,
1693 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
1702 * phy_module_driver() - Helper macro for registering PHY drivers
1703 * @__phy_drivers: array of PHY drivers to register
1704 * @__count: Numbers of members in array
1706 * Helper macro for PHY drivers which do not do anything special in module
1707 * init/exit. Each module may only use this macro once, and calling it
1708 * replaces module_init() and module_exit().
1710 #define phy_module_driver(__phy_drivers, __count) \
1711 static int __init phy_module_init(void) \
1713 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
1715 module_init(phy_module_init); \
1716 static void __exit phy_module_exit(void) \
1718 phy_drivers_unregister(__phy_drivers, __count); \
1720 module_exit(phy_module_exit)
1722 #define module_phy_driver(__phy_drivers) \
1723 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
1725 bool phy_driver_is_genphy(struct phy_device *phydev);
1726 bool phy_driver_is_genphy_10g(struct phy_device *phydev);
1728 #endif /* __PHY_H */