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[3];
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: Media-independent interface
91 * @PHY_INTERFACE_MODE_GMII: Gigabit media-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: Serial 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_QUSGMII: Quad Universal SGMII
119 * @PHY_INTERFACE_MODE_1000BASEKX: 1000Base-KX - with Clause 73 AN
120 * @PHY_INTERFACE_MODE_MAX: Book keeping
122 * Describes the interface between the MAC and PHY.
125 PHY_INTERFACE_MODE_NA,
126 PHY_INTERFACE_MODE_INTERNAL,
127 PHY_INTERFACE_MODE_MII,
128 PHY_INTERFACE_MODE_GMII,
129 PHY_INTERFACE_MODE_SGMII,
130 PHY_INTERFACE_MODE_TBI,
131 PHY_INTERFACE_MODE_REVMII,
132 PHY_INTERFACE_MODE_RMII,
133 PHY_INTERFACE_MODE_REVRMII,
134 PHY_INTERFACE_MODE_RGMII,
135 PHY_INTERFACE_MODE_RGMII_ID,
136 PHY_INTERFACE_MODE_RGMII_RXID,
137 PHY_INTERFACE_MODE_RGMII_TXID,
138 PHY_INTERFACE_MODE_RTBI,
139 PHY_INTERFACE_MODE_SMII,
140 PHY_INTERFACE_MODE_XGMII,
141 PHY_INTERFACE_MODE_XLGMII,
142 PHY_INTERFACE_MODE_MOCA,
143 PHY_INTERFACE_MODE_QSGMII,
144 PHY_INTERFACE_MODE_TRGMII,
145 PHY_INTERFACE_MODE_100BASEX,
146 PHY_INTERFACE_MODE_1000BASEX,
147 PHY_INTERFACE_MODE_2500BASEX,
148 PHY_INTERFACE_MODE_5GBASER,
149 PHY_INTERFACE_MODE_RXAUI,
150 PHY_INTERFACE_MODE_XAUI,
151 /* 10GBASE-R, XFI, SFI - single lane 10G Serdes */
152 PHY_INTERFACE_MODE_10GBASER,
153 PHY_INTERFACE_MODE_25GBASER,
154 PHY_INTERFACE_MODE_USXGMII,
155 /* 10GBASE-KR - with Clause 73 AN */
156 PHY_INTERFACE_MODE_10GKR,
157 PHY_INTERFACE_MODE_QUSGMII,
158 PHY_INTERFACE_MODE_1000BASEKX,
159 PHY_INTERFACE_MODE_MAX,
162 /* PHY interface mode bitmap handling */
163 #define DECLARE_PHY_INTERFACE_MASK(name) \
164 DECLARE_BITMAP(name, PHY_INTERFACE_MODE_MAX)
166 static inline void phy_interface_zero(unsigned long *intf)
168 bitmap_zero(intf, PHY_INTERFACE_MODE_MAX);
171 static inline bool phy_interface_empty(const unsigned long *intf)
173 return bitmap_empty(intf, PHY_INTERFACE_MODE_MAX);
176 static inline void phy_interface_and(unsigned long *dst, const unsigned long *a,
177 const unsigned long *b)
179 bitmap_and(dst, a, b, PHY_INTERFACE_MODE_MAX);
182 static inline void phy_interface_or(unsigned long *dst, const unsigned long *a,
183 const unsigned long *b)
185 bitmap_or(dst, a, b, PHY_INTERFACE_MODE_MAX);
188 static inline void phy_interface_set_rgmii(unsigned long *intf)
190 __set_bit(PHY_INTERFACE_MODE_RGMII, intf);
191 __set_bit(PHY_INTERFACE_MODE_RGMII_ID, intf);
192 __set_bit(PHY_INTERFACE_MODE_RGMII_RXID, intf);
193 __set_bit(PHY_INTERFACE_MODE_RGMII_TXID, intf);
197 * phy_supported_speeds - return all speeds currently supported by a PHY device
199 unsigned int phy_supported_speeds(struct phy_device *phy,
200 unsigned int *speeds,
204 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
205 * @interface: enum phy_interface_t value
207 * Description: maps enum &phy_interface_t defined in this file
208 * into the device tree binding of 'phy-mode', so that Ethernet
209 * device driver can get PHY interface from device tree.
211 static inline const char *phy_modes(phy_interface_t interface)
214 case PHY_INTERFACE_MODE_NA:
216 case PHY_INTERFACE_MODE_INTERNAL:
218 case PHY_INTERFACE_MODE_MII:
220 case PHY_INTERFACE_MODE_GMII:
222 case PHY_INTERFACE_MODE_SGMII:
224 case PHY_INTERFACE_MODE_TBI:
226 case PHY_INTERFACE_MODE_REVMII:
228 case PHY_INTERFACE_MODE_RMII:
230 case PHY_INTERFACE_MODE_REVRMII:
232 case PHY_INTERFACE_MODE_RGMII:
234 case PHY_INTERFACE_MODE_RGMII_ID:
236 case PHY_INTERFACE_MODE_RGMII_RXID:
238 case PHY_INTERFACE_MODE_RGMII_TXID:
240 case PHY_INTERFACE_MODE_RTBI:
242 case PHY_INTERFACE_MODE_SMII:
244 case PHY_INTERFACE_MODE_XGMII:
246 case PHY_INTERFACE_MODE_XLGMII:
248 case PHY_INTERFACE_MODE_MOCA:
250 case PHY_INTERFACE_MODE_QSGMII:
252 case PHY_INTERFACE_MODE_TRGMII:
254 case PHY_INTERFACE_MODE_1000BASEX:
256 case PHY_INTERFACE_MODE_1000BASEKX:
257 return "1000base-kx";
258 case PHY_INTERFACE_MODE_2500BASEX:
260 case PHY_INTERFACE_MODE_5GBASER:
262 case PHY_INTERFACE_MODE_RXAUI:
264 case PHY_INTERFACE_MODE_XAUI:
266 case PHY_INTERFACE_MODE_10GBASER:
268 case PHY_INTERFACE_MODE_25GBASER:
270 case PHY_INTERFACE_MODE_USXGMII:
272 case PHY_INTERFACE_MODE_10GKR:
274 case PHY_INTERFACE_MODE_100BASEX:
276 case PHY_INTERFACE_MODE_QUSGMII:
283 #define PHY_INIT_TIMEOUT 100000
284 #define PHY_FORCE_TIMEOUT 10
286 #define PHY_MAX_ADDR 32
288 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
289 #define PHY_ID_FMT "%s:%02x"
291 #define MII_BUS_ID_SIZE 61
296 struct sfp_upstream_ops;
300 * struct mdio_bus_stats - Statistics counters for MDIO busses
301 * @transfers: Total number of transfers, i.e. @writes + @reads
302 * @errors: Number of MDIO transfers that returned an error
303 * @writes: Number of write transfers
304 * @reads: Number of read transfers
305 * @syncp: Synchronisation for incrementing statistics
307 struct mdio_bus_stats {
308 u64_stats_t transfers;
312 /* Must be last, add new statistics above */
313 struct u64_stats_sync syncp;
317 * struct phy_package_shared - Shared information in PHY packages
318 * @addr: Common PHY address used to combine PHYs in one package
319 * @refcnt: Number of PHYs connected to this shared data
320 * @flags: Initialization of PHY package
321 * @priv_size: Size of the shared private data @priv
322 * @priv: Driver private data shared across a PHY package
324 * Represents a shared structure between different phydev's in the same
325 * package, for example a quad PHY. See phy_package_join() and
326 * phy_package_leave().
328 struct phy_package_shared {
334 /* private data pointer */
335 /* note that this pointer is shared between different phydevs and
336 * the user has to take care of appropriate locking. It is allocated
337 * and freed automatically by phy_package_join() and
338 * phy_package_leave().
343 /* used as bit number in atomic bitops */
344 #define PHY_SHARED_F_INIT_DONE 0
345 #define PHY_SHARED_F_PROBE_DONE 1
348 * struct mii_bus - Represents an MDIO bus
350 * @owner: Who owns this device
351 * @name: User friendly name for this MDIO device, or driver name
352 * @id: Unique identifier for this bus, typical from bus hierarchy
353 * @priv: Driver private data
355 * The Bus class for PHYs. Devices which provide access to
356 * PHYs should register using this structure
359 struct module *owner;
361 char id[MII_BUS_ID_SIZE];
363 /** @read: Perform a read transfer on the bus */
364 int (*read)(struct mii_bus *bus, int addr, int regnum);
365 /** @write: Perform a write transfer on the bus */
366 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
367 /** @reset: Perform a reset of the bus */
368 int (*reset)(struct mii_bus *bus);
370 /** @stats: Statistic counters per device on the bus */
371 struct mdio_bus_stats stats[PHY_MAX_ADDR];
374 * @mdio_lock: A lock to ensure that only one thing can read/write
375 * the MDIO bus at a time
377 struct mutex mdio_lock;
379 /** @parent: Parent device of this bus */
380 struct device *parent;
381 /** @state: State of bus structure */
383 MDIOBUS_ALLOCATED = 1,
385 MDIOBUS_UNREGISTERED,
389 /** @dev: Kernel device representation */
392 /** @mdio_map: list of all MDIO devices on bus */
393 struct mdio_device *mdio_map[PHY_MAX_ADDR];
395 /** @phy_mask: PHY addresses to be ignored when probing */
398 /** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */
399 u32 phy_ignore_ta_mask;
402 * @irq: An array of interrupts, each PHY's interrupt at the index
403 * matching its address
405 int irq[PHY_MAX_ADDR];
407 /** @reset_delay_us: GPIO reset pulse width in microseconds */
409 /** @reset_post_delay_us: GPIO reset deassert delay in microseconds */
410 int reset_post_delay_us;
411 /** @reset_gpiod: Reset GPIO descriptor pointer */
412 struct gpio_desc *reset_gpiod;
414 /** @probe_capabilities: bus capabilities, used for probing */
420 } probe_capabilities;
422 /** @shared_lock: protect access to the shared element */
423 struct mutex shared_lock;
425 /** @shared: shared state across different PHYs */
426 struct phy_package_shared *shared[PHY_MAX_ADDR];
428 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
430 struct mii_bus *mdiobus_alloc_size(size_t size);
433 * mdiobus_alloc - Allocate an MDIO bus structure
435 * The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready
436 * for the driver to register the bus.
438 static inline struct mii_bus *mdiobus_alloc(void)
440 return mdiobus_alloc_size(0);
443 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
444 int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
445 struct module *owner);
446 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
447 #define devm_mdiobus_register(dev, bus) \
448 __devm_mdiobus_register(dev, bus, THIS_MODULE)
450 void mdiobus_unregister(struct mii_bus *bus);
451 void mdiobus_free(struct mii_bus *bus);
452 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
453 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
455 return devm_mdiobus_alloc_size(dev, 0);
458 struct mii_bus *mdio_find_bus(const char *mdio_name);
459 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
461 #define PHY_INTERRUPT_DISABLED false
462 #define PHY_INTERRUPT_ENABLED true
465 * enum phy_state - PHY state machine states:
467 * @PHY_DOWN: PHY device and driver are not ready for anything. probe
468 * should be called if and only if the PHY is in this state,
469 * given that the PHY device exists.
470 * - PHY driver probe function will set the state to @PHY_READY
472 * @PHY_READY: PHY is ready to send and receive packets, but the
473 * controller is not. By default, PHYs which do not implement
474 * probe will be set to this state by phy_probe().
475 * - start will set the state to UP
477 * @PHY_UP: The PHY and attached device are ready to do work.
478 * Interrupts should be started here.
479 * - timer moves to @PHY_NOLINK or @PHY_RUNNING
481 * @PHY_NOLINK: PHY is up, but not currently plugged in.
482 * - irq or timer will set @PHY_RUNNING if link comes back
483 * - phy_stop moves to @PHY_HALTED
485 * @PHY_RUNNING: PHY is currently up, running, and possibly sending
486 * and/or receiving packets
487 * - irq or timer will set @PHY_NOLINK if link goes down
488 * - phy_stop moves to @PHY_HALTED
490 * @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending
491 * is not expected to work, carrier will be indicated as down. PHY will be
492 * poll once per second, or on interrupt for it current state.
493 * Once complete, move to UP to restart the PHY.
494 * - phy_stop aborts the running test and moves to @PHY_HALTED
496 * @PHY_HALTED: PHY is up, but no polling or interrupts are done. Or
497 * PHY is in an error state.
498 * - phy_start moves to @PHY_UP
510 #define MDIO_MMD_NUM 32
513 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
514 * @devices_in_package: IEEE 802.3 devices in package register value.
515 * @mmds_present: bit vector of MMDs present.
516 * @device_ids: The device identifer for each present device.
518 struct phy_c45_device_ids {
519 u32 devices_in_package;
521 u32 device_ids[MDIO_MMD_NUM];
524 struct macsec_context;
528 * struct phy_device - An instance of a PHY
530 * @mdio: MDIO bus this PHY is on
531 * @drv: Pointer to the driver for this PHY instance
532 * @devlink: Create a link between phy dev and mac dev, if the external phy
533 * used by current mac interface is managed by another mac interface.
534 * @phy_id: UID for this device found during discovery
535 * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
536 * @is_c45: Set to true if this PHY uses clause 45 addressing.
537 * @is_internal: Set to true if this PHY is internal to a MAC.
538 * @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc.
539 * @is_gigabit_capable: Set to true if PHY supports 1000Mbps
540 * @has_fixups: Set to true if this PHY has fixups/quirks.
541 * @suspended: Set to true if this PHY has been suspended successfully.
542 * @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus.
543 * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
544 * @loopback_enabled: Set true if this PHY has been loopbacked successfully.
545 * @downshifted_rate: Set true if link speed has been downshifted.
546 * @is_on_sfp_module: Set true if PHY is located on an SFP module.
547 * @mac_managed_pm: Set true if MAC driver takes of suspending/resuming PHY
548 * @state: State of the PHY for management purposes
549 * @dev_flags: Device-specific flags used by the PHY driver.
551 * - Bits [15:0] are free to use by the PHY driver to communicate
552 * driver specific behavior.
553 * - Bits [23:16] are currently reserved for future use.
554 * - Bits [31:24] are reserved for defining generic
555 * PHY driver behavior.
556 * @irq: IRQ number of the PHY's interrupt (-1 if none)
557 * @phy_timer: The timer for handling the state machine
558 * @phylink: Pointer to phylink instance for this PHY
559 * @sfp_bus_attached: Flag indicating whether the SFP bus has been attached
560 * @sfp_bus: SFP bus attached to this PHY's fiber port
561 * @attached_dev: The attached enet driver's device instance ptr
562 * @adjust_link: Callback for the enet controller to respond to changes: in the
564 * @phy_link_change: Callback for phylink for notification of link change
565 * @macsec_ops: MACsec offloading ops.
567 * @speed: Current link speed
568 * @duplex: Current duplex
569 * @port: Current port
570 * @pause: Current pause
571 * @asym_pause: Current asymmetric pause
572 * @supported: Combined MAC/PHY supported linkmodes
573 * @advertising: Currently advertised linkmodes
574 * @adv_old: Saved advertised while power saving for WoL
575 * @lp_advertising: Current link partner advertised linkmodes
576 * @host_interfaces: PHY interface modes supported by host
577 * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
578 * @autoneg: Flag autoneg being used
579 * @rate_matching: Current rate matching mode
580 * @link: Current link state
581 * @autoneg_complete: Flag auto negotiation of the link has completed
582 * @mdix: Current crossover
583 * @mdix_ctrl: User setting of crossover
584 * @pma_extable: Cached value of PMA/PMD Extended Abilities Register
585 * @interrupts: Flag interrupts have been enabled
586 * @irq_suspended: Flag indicating PHY is suspended and therefore interrupt
587 * handling shall be postponed until PHY has resumed
588 * @irq_rerun: Flag indicating interrupts occurred while PHY was suspended,
589 * requiring a rerun of the interrupt handler after resume
590 * @interface: enum phy_interface_t value
591 * @skb: Netlink message for cable diagnostics
592 * @nest: Netlink nest used for cable diagnostics
593 * @ehdr: nNtlink header for cable diagnostics
594 * @phy_led_triggers: Array of LED triggers
595 * @phy_num_led_triggers: Number of triggers in @phy_led_triggers
596 * @led_link_trigger: LED trigger for link up/down
597 * @last_triggered: last LED trigger for link speed
598 * @master_slave_set: User requested master/slave configuration
599 * @master_slave_get: Current master/slave advertisement
600 * @master_slave_state: Current master/slave configuration
601 * @mii_ts: Pointer to time stamper callbacks
602 * @psec: Pointer to Power Sourcing Equipment control struct
603 * @lock: Mutex for serialization access to PHY
604 * @state_queue: Work queue for state machine
605 * @link_down_events: Number of times link was lost
606 * @shared: Pointer to private data shared by phys in one package
607 * @priv: Pointer to driver private data
609 * interrupts currently only supports enabled or disabled,
610 * but could be changed in the future to support enabling
611 * and disabling specific interrupts
613 * Contains some infrastructure for polling and interrupt
614 * handling, as well as handling shifts in PHY hardware state
617 struct mdio_device mdio;
619 /* Information about the PHY type */
620 /* And management functions */
621 struct phy_driver *drv;
623 struct device_link *devlink;
627 struct phy_c45_device_ids c45_ids;
629 unsigned is_internal:1;
630 unsigned is_pseudo_fixed_link:1;
631 unsigned is_gigabit_capable:1;
632 unsigned has_fixups:1;
633 unsigned suspended:1;
634 unsigned suspended_by_mdio_bus:1;
635 unsigned sysfs_links:1;
636 unsigned loopback_enabled:1;
637 unsigned downshifted_rate:1;
638 unsigned is_on_sfp_module:1;
639 unsigned mac_managed_pm:1;
642 /* The most recently read link state */
644 unsigned autoneg_complete:1;
646 /* Interrupts are enabled */
647 unsigned interrupts:1;
648 unsigned irq_suspended:1;
649 unsigned irq_rerun:1;
653 enum phy_state state;
657 phy_interface_t interface;
660 * forced speed & duplex (no autoneg)
661 * partner speed & duplex & pause (autoneg)
670 u8 master_slave_state;
672 /* Union of PHY and Attached devices' supported link modes */
673 /* See ethtool.h for more info */
674 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
675 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
676 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
677 /* used with phy_speed_down */
678 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
680 /* Host supported PHY interface types. Should be ignored if empty. */
681 DECLARE_PHY_INTERFACE_MASK(host_interfaces);
683 /* Energy efficient ethernet modes which should be prohibited */
684 u32 eee_broken_modes;
686 #ifdef CONFIG_LED_TRIGGER_PHY
687 struct phy_led_trigger *phy_led_triggers;
688 unsigned int phy_num_led_triggers;
689 struct phy_led_trigger *last_triggered;
691 struct phy_led_trigger *led_link_trigger;
695 * Interrupt number for this PHY
696 * -1 means no interrupt
700 /* private data pointer */
701 /* For use by PHYs to maintain extra state */
704 /* shared data pointer */
705 /* For use by PHYs inside the same package that need a shared state. */
706 struct phy_package_shared *shared;
708 /* Reporting cable test results */
713 /* Interrupt and Polling infrastructure */
714 struct delayed_work state_queue;
718 /* This may be modified under the rtnl lock */
719 bool sfp_bus_attached;
720 struct sfp_bus *sfp_bus;
721 struct phylink *phylink;
722 struct net_device *attached_dev;
723 struct mii_timestamper *mii_ts;
724 struct pse_control *psec;
731 unsigned int link_down_events;
733 void (*phy_link_change)(struct phy_device *phydev, bool up);
734 void (*adjust_link)(struct net_device *dev);
736 #if IS_ENABLED(CONFIG_MACSEC)
737 /* MACsec management functions */
738 const struct macsec_ops *macsec_ops;
742 static inline struct phy_device *to_phy_device(const struct device *dev)
744 return container_of(to_mdio_device(dev), struct phy_device, mdio);
748 * struct phy_tdr_config - Configuration of a TDR raw test
750 * @first: Distance for first data collection point
751 * @last: Distance for last data collection point
752 * @step: Step between data collection points
753 * @pair: Bitmap of cable pairs to collect data for
755 * A structure containing possible configuration parameters
756 * for a TDR cable test. The driver does not need to implement
757 * all the parameters, but should report what is actually used.
758 * All distances are in centimeters.
760 struct phy_tdr_config {
766 #define PHY_PAIR_ALL -1
769 * struct phy_driver - Driver structure for a particular PHY type
771 * @mdiodrv: Data common to all MDIO devices
772 * @phy_id: The result of reading the UID registers of this PHY
773 * type, and ANDing them with the phy_id_mask. This driver
774 * only works for PHYs with IDs which match this field
775 * @name: The friendly name of this PHY type
776 * @phy_id_mask: Defines the important bits of the phy_id
777 * @features: A mandatory list of features (speed, duplex, etc)
778 * supported by this PHY
779 * @flags: A bitfield defining certain other features this PHY
780 * supports (like interrupts)
781 * @driver_data: Static driver data
783 * All functions are optional. If config_aneg or read_status
784 * are not implemented, the phy core uses the genphy versions.
785 * Note that none of these functions should be called from
786 * interrupt time. The goal is for the bus read/write functions
787 * to be able to block when the bus transaction is happening,
788 * and be freed up by an interrupt (The MPC85xx has this ability,
789 * though it is not currently supported in the driver).
792 struct mdio_driver_common mdiodrv;
796 const unsigned long * const features;
798 const void *driver_data;
801 * @soft_reset: Called to issue a PHY software reset
803 int (*soft_reset)(struct phy_device *phydev);
806 * @config_init: Called to initialize the PHY,
807 * including after a reset
809 int (*config_init)(struct phy_device *phydev);
812 * @probe: Called during discovery. Used to set
813 * up device-specific structures, if any
815 int (*probe)(struct phy_device *phydev);
818 * @get_features: Probe the hardware to determine what
819 * abilities it has. Should only set phydev->supported.
821 int (*get_features)(struct phy_device *phydev);
824 * @get_rate_matching: Get the supported type of rate matching for a
825 * particular phy interface. This is used by phy consumers to determine
826 * whether to advertise lower-speed modes for that interface. It is
827 * assumed that if a rate matching mode is supported on an interface,
828 * then that interface's rate can be adapted to all slower link speeds
829 * supported by the phy. If the interface is not supported, this should
830 * return %RATE_MATCH_NONE.
832 int (*get_rate_matching)(struct phy_device *phydev,
833 phy_interface_t iface);
835 /* PHY Power Management */
836 /** @suspend: Suspend the hardware, saving state if needed */
837 int (*suspend)(struct phy_device *phydev);
838 /** @resume: Resume the hardware, restoring state if needed */
839 int (*resume)(struct phy_device *phydev);
842 * @config_aneg: Configures the advertisement and resets
843 * autonegotiation if phydev->autoneg is on,
844 * forces the speed to the current settings in phydev
845 * if phydev->autoneg is off
847 int (*config_aneg)(struct phy_device *phydev);
849 /** @aneg_done: Determines the auto negotiation result */
850 int (*aneg_done)(struct phy_device *phydev);
852 /** @read_status: Determines the negotiated speed and duplex */
853 int (*read_status)(struct phy_device *phydev);
856 * @config_intr: Enables or disables interrupts.
857 * It should also clear any pending interrupts prior to enabling the
858 * IRQs and after disabling them.
860 int (*config_intr)(struct phy_device *phydev);
862 /** @handle_interrupt: Override default interrupt handling */
863 irqreturn_t (*handle_interrupt)(struct phy_device *phydev);
865 /** @remove: Clears up any memory if needed */
866 void (*remove)(struct phy_device *phydev);
869 * @match_phy_device: Returns true if this is a suitable
870 * driver for the given phydev. If NULL, matching is based on
871 * phy_id and phy_id_mask.
873 int (*match_phy_device)(struct phy_device *phydev);
876 * @set_wol: Some devices (e.g. qnap TS-119P II) require PHY
877 * register changes to enable Wake on LAN, so set_wol is
878 * provided to be called in the ethernet driver's set_wol
881 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
884 * @get_wol: See set_wol, but for checking whether Wake on LAN
887 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
890 * @link_change_notify: Called to inform a PHY device driver
891 * when the core is about to change the link state. This
892 * callback is supposed to be used as fixup hook for drivers
893 * that need to take action when the link state
894 * changes. Drivers are by no means allowed to mess with the
895 * PHY device structure in their implementations.
897 void (*link_change_notify)(struct phy_device *dev);
900 * @read_mmd: PHY specific driver override for reading a MMD
901 * register. This function is optional for PHY specific
902 * drivers. When not provided, the default MMD read function
903 * will be used by phy_read_mmd(), which will use either a
904 * direct read for Clause 45 PHYs or an indirect read for
905 * Clause 22 PHYs. devnum is the MMD device number within the
906 * PHY device, regnum is the register within the selected MMD
909 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
912 * @write_mmd: PHY specific driver override for writing a MMD
913 * register. This function is optional for PHY specific
914 * drivers. When not provided, the default MMD write function
915 * will be used by phy_write_mmd(), which will use either a
916 * direct write for Clause 45 PHYs, or an indirect write for
917 * Clause 22 PHYs. devnum is the MMD device number within the
918 * PHY device, regnum is the register within the selected MMD
919 * device. val is the value to be written.
921 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
924 /** @read_page: Return the current PHY register page number */
925 int (*read_page)(struct phy_device *dev);
926 /** @write_page: Set the current PHY register page number */
927 int (*write_page)(struct phy_device *dev, int page);
930 * @module_info: Get the size and type of the eeprom contained
931 * within a plug-in module
933 int (*module_info)(struct phy_device *dev,
934 struct ethtool_modinfo *modinfo);
937 * @module_eeprom: Get the eeprom information from the plug-in
940 int (*module_eeprom)(struct phy_device *dev,
941 struct ethtool_eeprom *ee, u8 *data);
943 /** @cable_test_start: Start a cable test */
944 int (*cable_test_start)(struct phy_device *dev);
946 /** @cable_test_tdr_start: Start a raw TDR cable test */
947 int (*cable_test_tdr_start)(struct phy_device *dev,
948 const struct phy_tdr_config *config);
951 * @cable_test_get_status: Once per second, or on interrupt,
952 * request the status of the test.
954 int (*cable_test_get_status)(struct phy_device *dev, bool *finished);
956 /* Get statistics from the PHY using ethtool */
957 /** @get_sset_count: Number of statistic counters */
958 int (*get_sset_count)(struct phy_device *dev);
959 /** @get_strings: Names of the statistic counters */
960 void (*get_strings)(struct phy_device *dev, u8 *data);
961 /** @get_stats: Return the statistic counter values */
962 void (*get_stats)(struct phy_device *dev,
963 struct ethtool_stats *stats, u64 *data);
965 /* Get and Set PHY tunables */
966 /** @get_tunable: Return the value of a tunable */
967 int (*get_tunable)(struct phy_device *dev,
968 struct ethtool_tunable *tuna, void *data);
969 /** @set_tunable: Set the value of a tunable */
970 int (*set_tunable)(struct phy_device *dev,
971 struct ethtool_tunable *tuna,
973 /** @set_loopback: Set the loopback mood of the PHY */
974 int (*set_loopback)(struct phy_device *dev, bool enable);
975 /** @get_sqi: Get the signal quality indication */
976 int (*get_sqi)(struct phy_device *dev);
977 /** @get_sqi_max: Get the maximum signal quality indication */
978 int (*get_sqi_max)(struct phy_device *dev);
980 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
981 struct phy_driver, mdiodrv)
983 #define PHY_ANY_ID "MATCH ANY PHY"
984 #define PHY_ANY_UID 0xffffffff
986 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
987 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
988 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
990 /* A Structure for boards to register fixups with the PHY Lib */
992 struct list_head list;
993 char bus_id[MII_BUS_ID_SIZE + 3];
996 int (*run)(struct phy_device *phydev);
999 const char *phy_speed_to_str(int speed);
1000 const char *phy_duplex_to_str(unsigned int duplex);
1001 const char *phy_rate_matching_to_str(int rate_matching);
1003 int phy_interface_num_ports(phy_interface_t interface);
1005 /* A structure for mapping a particular speed and duplex
1006 * combination to a particular SUPPORTED and ADVERTISED value
1008 struct phy_setting {
1014 const struct phy_setting *
1015 phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
1017 size_t phy_speeds(unsigned int *speeds, size_t size,
1018 unsigned long *mask);
1019 void of_set_phy_supported(struct phy_device *phydev);
1020 void of_set_phy_eee_broken(struct phy_device *phydev);
1021 int phy_speed_down_core(struct phy_device *phydev);
1024 * phy_is_started - Convenience function to check whether PHY is started
1025 * @phydev: The phy_device struct
1027 static inline bool phy_is_started(struct phy_device *phydev)
1029 return phydev->state >= PHY_UP;
1032 void phy_resolve_aneg_pause(struct phy_device *phydev);
1033 void phy_resolve_aneg_linkmode(struct phy_device *phydev);
1034 void phy_check_downshift(struct phy_device *phydev);
1037 * phy_read - Convenience function for reading a given PHY register
1038 * @phydev: the phy_device struct
1039 * @regnum: register number to read
1041 * NOTE: MUST NOT be called from interrupt context,
1042 * because the bus read/write functions may wait for an interrupt
1043 * to conclude the operation.
1045 static inline int phy_read(struct phy_device *phydev, u32 regnum)
1047 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1050 #define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \
1051 timeout_us, sleep_before_read) \
1053 int __ret = read_poll_timeout(phy_read, val, (cond) || val < 0, \
1054 sleep_us, timeout_us, sleep_before_read, phydev, regnum); \
1058 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1064 * __phy_read - convenience function for reading a given PHY register
1065 * @phydev: the phy_device struct
1066 * @regnum: register number to read
1068 * The caller must have taken the MDIO bus lock.
1070 static inline int __phy_read(struct phy_device *phydev, u32 regnum)
1072 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1076 * phy_write - Convenience function for writing a given PHY register
1077 * @phydev: the phy_device struct
1078 * @regnum: register number to write
1079 * @val: value to write to @regnum
1081 * NOTE: MUST NOT be called from interrupt context,
1082 * because the bus read/write functions may wait for an interrupt
1083 * to conclude the operation.
1085 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1087 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
1091 * __phy_write - Convenience function for writing a given PHY register
1092 * @phydev: the phy_device struct
1093 * @regnum: register number to write
1094 * @val: value to write to @regnum
1096 * The caller must have taken the MDIO bus lock.
1098 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1100 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
1105 * __phy_modify_changed() - Convenience function for modifying a PHY register
1106 * @phydev: a pointer to a &struct phy_device
1107 * @regnum: register number
1108 * @mask: bit mask of bits to clear
1109 * @set: bit mask of bits to set
1111 * Unlocked helper function which allows a PHY register to be modified as
1112 * new register value = (old register value & ~mask) | set
1114 * Returns negative errno, 0 if there was no change, and 1 in case of change
1116 static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum,
1119 return __mdiobus_modify_changed(phydev->mdio.bus, phydev->mdio.addr,
1124 * phy_read_mmd - Convenience function for reading a register
1125 * from an MMD on a given PHY.
1127 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1130 * phy_read_mmd_poll_timeout - Periodically poll a PHY register until a
1131 * condition is met or a timeout occurs
1133 * @phydev: The phy_device struct
1134 * @devaddr: The MMD to read from
1135 * @regnum: The register on the MMD to read
1136 * @val: Variable to read the register into
1137 * @cond: Break condition (usually involving @val)
1138 * @sleep_us: Maximum time to sleep between reads in us (0
1139 * tight-loops). Should be less than ~20ms since usleep_range
1140 * is used (see Documentation/timers/timers-howto.rst).
1141 * @timeout_us: Timeout in us, 0 means never timeout
1142 * @sleep_before_read: if it is true, sleep @sleep_us before read.
1143 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either
1144 * case, the last read value at @args is stored in @val. Must not
1145 * be called from atomic context if sleep_us or timeout_us are used.
1147 #define phy_read_mmd_poll_timeout(phydev, devaddr, regnum, val, cond, \
1148 sleep_us, timeout_us, sleep_before_read) \
1150 int __ret = read_poll_timeout(phy_read_mmd, val, (cond) || val < 0, \
1151 sleep_us, timeout_us, sleep_before_read, \
1152 phydev, devaddr, regnum); \
1156 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1161 * __phy_read_mmd - Convenience function for reading a register
1162 * from an MMD on a given PHY.
1164 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1167 * phy_write_mmd - Convenience function for writing a register
1168 * on an MMD on a given PHY.
1170 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1173 * __phy_write_mmd - Convenience function for writing a register
1174 * on an MMD on a given PHY.
1176 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1178 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1180 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1182 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1183 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1185 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1187 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1189 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1191 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1195 * __phy_set_bits - Convenience function for setting bits in a PHY register
1196 * @phydev: the phy_device struct
1197 * @regnum: register number to write
1200 * The caller must have taken the MDIO bus lock.
1202 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1204 return __phy_modify(phydev, regnum, 0, val);
1208 * __phy_clear_bits - Convenience function for clearing bits in a PHY register
1209 * @phydev: the phy_device struct
1210 * @regnum: register number to write
1211 * @val: bits to clear
1213 * The caller must have taken the MDIO bus lock.
1215 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
1218 return __phy_modify(phydev, regnum, val, 0);
1222 * phy_set_bits - Convenience function for setting bits in a PHY register
1223 * @phydev: the phy_device struct
1224 * @regnum: register number to write
1227 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1229 return phy_modify(phydev, regnum, 0, val);
1233 * phy_clear_bits - Convenience function for clearing bits in a PHY register
1234 * @phydev: the phy_device struct
1235 * @regnum: register number to write
1236 * @val: bits to clear
1238 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
1240 return phy_modify(phydev, regnum, val, 0);
1244 * __phy_set_bits_mmd - Convenience function for setting bits in a register
1246 * @phydev: the phy_device struct
1247 * @devad: the MMD containing register to modify
1248 * @regnum: register number to modify
1251 * The caller must have taken the MDIO bus lock.
1253 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad,
1254 u32 regnum, u16 val)
1256 return __phy_modify_mmd(phydev, devad, regnum, 0, val);
1260 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register
1262 * @phydev: the phy_device struct
1263 * @devad: the MMD containing register to modify
1264 * @regnum: register number to modify
1265 * @val: bits to clear
1267 * The caller must have taken the MDIO bus lock.
1269 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1270 u32 regnum, u16 val)
1272 return __phy_modify_mmd(phydev, devad, regnum, val, 0);
1276 * phy_set_bits_mmd - Convenience function for setting bits in a register
1278 * @phydev: the phy_device struct
1279 * @devad: the MMD containing register to modify
1280 * @regnum: register number to modify
1283 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad,
1284 u32 regnum, u16 val)
1286 return phy_modify_mmd(phydev, devad, regnum, 0, val);
1290 * phy_clear_bits_mmd - Convenience function for clearing bits in a register
1292 * @phydev: the phy_device struct
1293 * @devad: the MMD containing register to modify
1294 * @regnum: register number to modify
1295 * @val: bits to clear
1297 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1298 u32 regnum, u16 val)
1300 return phy_modify_mmd(phydev, devad, regnum, val, 0);
1304 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
1305 * @phydev: the phy_device struct
1307 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
1310 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
1312 return phydev->irq != PHY_POLL && phydev->irq != PHY_MAC_INTERRUPT;
1316 * phy_polling_mode - Convenience function for testing whether polling is
1317 * used to detect PHY status changes
1318 * @phydev: the phy_device struct
1320 static inline bool phy_polling_mode(struct phy_device *phydev)
1322 if (phydev->state == PHY_CABLETEST)
1323 if (phydev->drv->flags & PHY_POLL_CABLE_TEST)
1326 return phydev->irq == PHY_POLL;
1330 * phy_has_hwtstamp - Tests whether a PHY time stamp configuration.
1331 * @phydev: the phy_device struct
1333 static inline bool phy_has_hwtstamp(struct phy_device *phydev)
1335 return phydev && phydev->mii_ts && phydev->mii_ts->hwtstamp;
1339 * phy_has_rxtstamp - Tests whether a PHY supports receive time stamping.
1340 * @phydev: the phy_device struct
1342 static inline bool phy_has_rxtstamp(struct phy_device *phydev)
1344 return phydev && phydev->mii_ts && phydev->mii_ts->rxtstamp;
1348 * phy_has_tsinfo - Tests whether a PHY reports time stamping and/or
1349 * PTP hardware clock capabilities.
1350 * @phydev: the phy_device struct
1352 static inline bool phy_has_tsinfo(struct phy_device *phydev)
1354 return phydev && phydev->mii_ts && phydev->mii_ts->ts_info;
1358 * phy_has_txtstamp - Tests whether a PHY supports transmit time stamping.
1359 * @phydev: the phy_device struct
1361 static inline bool phy_has_txtstamp(struct phy_device *phydev)
1363 return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp;
1366 static inline int phy_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
1368 return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
1371 static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb,
1374 return phydev->mii_ts->rxtstamp(phydev->mii_ts, skb, type);
1377 static inline int phy_ts_info(struct phy_device *phydev,
1378 struct ethtool_ts_info *tsinfo)
1380 return phydev->mii_ts->ts_info(phydev->mii_ts, tsinfo);
1383 static inline void phy_txtstamp(struct phy_device *phydev, struct sk_buff *skb,
1386 phydev->mii_ts->txtstamp(phydev->mii_ts, skb, type);
1390 * phy_is_internal - Convenience function for testing if a PHY is internal
1391 * @phydev: the phy_device struct
1393 static inline bool phy_is_internal(struct phy_device *phydev)
1395 return phydev->is_internal;
1399 * phy_on_sfp - Convenience function for testing if a PHY is on an SFP module
1400 * @phydev: the phy_device struct
1402 static inline bool phy_on_sfp(struct phy_device *phydev)
1404 return phydev->is_on_sfp_module;
1408 * phy_interface_mode_is_rgmii - Convenience function for testing if a
1409 * PHY interface mode is RGMII (all variants)
1410 * @mode: the &phy_interface_t enum
1412 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
1414 return mode >= PHY_INTERFACE_MODE_RGMII &&
1415 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
1419 * phy_interface_mode_is_8023z() - does the PHY interface mode use 802.3z
1421 * @mode: one of &enum phy_interface_t
1423 * Returns true if the PHY interface mode uses the 16-bit negotiation
1424 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding)
1426 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode)
1428 return mode == PHY_INTERFACE_MODE_1000BASEX ||
1429 mode == PHY_INTERFACE_MODE_2500BASEX;
1433 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
1434 * is RGMII (all variants)
1435 * @phydev: the phy_device struct
1437 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
1439 return phy_interface_mode_is_rgmii(phydev->interface);
1443 * phy_is_pseudo_fixed_link - Convenience function for testing if this
1444 * PHY is the CPU port facing side of an Ethernet switch, or similar.
1445 * @phydev: the phy_device struct
1447 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
1449 return phydev->is_pseudo_fixed_link;
1452 int phy_save_page(struct phy_device *phydev);
1453 int phy_select_page(struct phy_device *phydev, int page);
1454 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret);
1455 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum);
1456 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val);
1457 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum,
1459 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum,
1462 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
1464 struct phy_c45_device_ids *c45_ids);
1465 #if IS_ENABLED(CONFIG_PHYLIB)
1466 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
1467 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
1468 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);
1469 struct phy_device *device_phy_find_device(struct device *dev);
1470 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode);
1471 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
1472 int phy_device_register(struct phy_device *phy);
1473 void phy_device_free(struct phy_device *phydev);
1475 static inline int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
1480 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
1486 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode)
1491 static inline struct phy_device *device_phy_find_device(struct device *dev)
1497 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode)
1503 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
1508 static inline int phy_device_register(struct phy_device *phy)
1513 static inline void phy_device_free(struct phy_device *phydev) { }
1514 #endif /* CONFIG_PHYLIB */
1515 void phy_device_remove(struct phy_device *phydev);
1516 int phy_get_c45_ids(struct phy_device *phydev);
1517 int phy_init_hw(struct phy_device *phydev);
1518 int phy_suspend(struct phy_device *phydev);
1519 int phy_resume(struct phy_device *phydev);
1520 int __phy_resume(struct phy_device *phydev);
1521 int phy_loopback(struct phy_device *phydev, bool enable);
1522 void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
1523 void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
1524 int phy_sfp_probe(struct phy_device *phydev,
1525 const struct sfp_upstream_ops *ops);
1526 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
1527 phy_interface_t interface);
1528 struct phy_device *phy_find_first(struct mii_bus *bus);
1529 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
1530 u32 flags, phy_interface_t interface);
1531 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
1532 void (*handler)(struct net_device *),
1533 phy_interface_t interface);
1534 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
1535 void (*handler)(struct net_device *),
1536 phy_interface_t interface);
1537 void phy_disconnect(struct phy_device *phydev);
1538 void phy_detach(struct phy_device *phydev);
1539 void phy_start(struct phy_device *phydev);
1540 void phy_stop(struct phy_device *phydev);
1541 int phy_config_aneg(struct phy_device *phydev);
1542 int phy_start_aneg(struct phy_device *phydev);
1543 int phy_aneg_done(struct phy_device *phydev);
1544 int phy_speed_down(struct phy_device *phydev, bool sync);
1545 int phy_speed_up(struct phy_device *phydev);
1547 int phy_restart_aneg(struct phy_device *phydev);
1548 int phy_reset_after_clk_enable(struct phy_device *phydev);
1550 #if IS_ENABLED(CONFIG_PHYLIB)
1551 int phy_start_cable_test(struct phy_device *phydev,
1552 struct netlink_ext_ack *extack);
1553 int phy_start_cable_test_tdr(struct phy_device *phydev,
1554 struct netlink_ext_ack *extack,
1555 const struct phy_tdr_config *config);
1558 int phy_start_cable_test(struct phy_device *phydev,
1559 struct netlink_ext_ack *extack)
1561 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1565 int phy_start_cable_test_tdr(struct phy_device *phydev,
1566 struct netlink_ext_ack *extack,
1567 const struct phy_tdr_config *config)
1569 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1574 int phy_cable_test_result(struct phy_device *phydev, u8 pair, u16 result);
1575 int phy_cable_test_fault_length(struct phy_device *phydev, u8 pair,
1578 static inline void phy_device_reset(struct phy_device *phydev, int value)
1580 mdio_device_reset(&phydev->mdio, value);
1583 #define phydev_err(_phydev, format, args...) \
1584 dev_err(&_phydev->mdio.dev, format, ##args)
1586 #define phydev_err_probe(_phydev, err, format, args...) \
1587 dev_err_probe(&_phydev->mdio.dev, err, format, ##args)
1589 #define phydev_info(_phydev, format, args...) \
1590 dev_info(&_phydev->mdio.dev, format, ##args)
1592 #define phydev_warn(_phydev, format, args...) \
1593 dev_warn(&_phydev->mdio.dev, format, ##args)
1595 #define phydev_dbg(_phydev, format, args...) \
1596 dev_dbg(&_phydev->mdio.dev, format, ##args)
1598 static inline const char *phydev_name(const struct phy_device *phydev)
1600 return dev_name(&phydev->mdio.dev);
1603 static inline void phy_lock_mdio_bus(struct phy_device *phydev)
1605 mutex_lock(&phydev->mdio.bus->mdio_lock);
1608 static inline void phy_unlock_mdio_bus(struct phy_device *phydev)
1610 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1613 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
1615 char *phy_attached_info_irq(struct phy_device *phydev)
1617 void phy_attached_info(struct phy_device *phydev);
1620 int genphy_read_abilities(struct phy_device *phydev);
1621 int genphy_setup_forced(struct phy_device *phydev);
1622 int genphy_restart_aneg(struct phy_device *phydev);
1623 int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1624 int genphy_config_eee_advert(struct phy_device *phydev);
1625 int __genphy_config_aneg(struct phy_device *phydev, bool changed);
1626 int genphy_aneg_done(struct phy_device *phydev);
1627 int genphy_update_link(struct phy_device *phydev);
1628 int genphy_read_lpa(struct phy_device *phydev);
1629 int genphy_read_status_fixed(struct phy_device *phydev);
1630 int genphy_read_status(struct phy_device *phydev);
1631 int genphy_read_master_slave(struct phy_device *phydev);
1632 int genphy_suspend(struct phy_device *phydev);
1633 int genphy_resume(struct phy_device *phydev);
1634 int genphy_loopback(struct phy_device *phydev, bool enable);
1635 int genphy_soft_reset(struct phy_device *phydev);
1636 irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev);
1638 static inline int genphy_config_aneg(struct phy_device *phydev)
1640 return __genphy_config_aneg(phydev, false);
1643 static inline int genphy_no_config_intr(struct phy_device *phydev)
1647 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
1649 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
1650 u16 regnum, u16 val);
1653 int genphy_c37_config_aneg(struct phy_device *phydev);
1654 int genphy_c37_read_status(struct phy_device *phydev);
1657 int genphy_c45_restart_aneg(struct phy_device *phydev);
1658 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1659 int genphy_c45_aneg_done(struct phy_device *phydev);
1660 int genphy_c45_read_link(struct phy_device *phydev);
1661 int genphy_c45_read_lpa(struct phy_device *phydev);
1662 int genphy_c45_read_pma(struct phy_device *phydev);
1663 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
1664 int genphy_c45_pma_baset1_setup_master_slave(struct phy_device *phydev);
1665 int genphy_c45_an_config_aneg(struct phy_device *phydev);
1666 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
1667 int genphy_c45_read_mdix(struct phy_device *phydev);
1668 int genphy_c45_pma_read_abilities(struct phy_device *phydev);
1669 int genphy_c45_pma_baset1_read_master_slave(struct phy_device *phydev);
1670 int genphy_c45_read_status(struct phy_device *phydev);
1671 int genphy_c45_baset1_read_status(struct phy_device *phydev);
1672 int genphy_c45_config_aneg(struct phy_device *phydev);
1673 int genphy_c45_loopback(struct phy_device *phydev, bool enable);
1674 int genphy_c45_pma_resume(struct phy_device *phydev);
1675 int genphy_c45_pma_suspend(struct phy_device *phydev);
1676 int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable);
1678 /* Generic C45 PHY driver */
1679 extern struct phy_driver genphy_c45_driver;
1681 /* The gen10g_* functions are the old Clause 45 stub */
1682 int gen10g_config_aneg(struct phy_device *phydev);
1684 static inline int phy_read_status(struct phy_device *phydev)
1689 if (phydev->drv->read_status)
1690 return phydev->drv->read_status(phydev);
1692 return genphy_read_status(phydev);
1695 void phy_driver_unregister(struct phy_driver *drv);
1696 void phy_drivers_unregister(struct phy_driver *drv, int n);
1697 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
1698 int phy_drivers_register(struct phy_driver *new_driver, int n,
1699 struct module *owner);
1700 void phy_error(struct phy_device *phydev);
1701 void phy_state_machine(struct work_struct *work);
1702 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
1703 void phy_trigger_machine(struct phy_device *phydev);
1704 void phy_mac_interrupt(struct phy_device *phydev);
1705 void phy_start_machine(struct phy_device *phydev);
1706 void phy_stop_machine(struct phy_device *phydev);
1707 void phy_ethtool_ksettings_get(struct phy_device *phydev,
1708 struct ethtool_link_ksettings *cmd);
1709 int phy_ethtool_ksettings_set(struct phy_device *phydev,
1710 const struct ethtool_link_ksettings *cmd);
1711 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
1712 int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
1713 int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
1714 int phy_disable_interrupts(struct phy_device *phydev);
1715 void phy_request_interrupt(struct phy_device *phydev);
1716 void phy_free_interrupt(struct phy_device *phydev);
1717 void phy_print_status(struct phy_device *phydev);
1718 int phy_get_rate_matching(struct phy_device *phydev,
1719 phy_interface_t iface);
1720 void phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
1721 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
1722 void phy_advertise_supported(struct phy_device *phydev);
1723 void phy_support_sym_pause(struct phy_device *phydev);
1724 void phy_support_asym_pause(struct phy_device *phydev);
1725 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
1727 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
1728 bool phy_validate_pause(struct phy_device *phydev,
1729 struct ethtool_pauseparam *pp);
1730 void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
1732 s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
1733 const int *delay_values, int size, bool is_rx);
1735 void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
1736 bool *tx_pause, bool *rx_pause);
1738 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
1739 int (*run)(struct phy_device *));
1740 int phy_register_fixup_for_id(const char *bus_id,
1741 int (*run)(struct phy_device *));
1742 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
1743 int (*run)(struct phy_device *));
1745 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
1746 int phy_unregister_fixup_for_id(const char *bus_id);
1747 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
1749 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
1750 int phy_get_eee_err(struct phy_device *phydev);
1751 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
1752 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
1753 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
1754 void phy_ethtool_get_wol(struct phy_device *phydev,
1755 struct ethtool_wolinfo *wol);
1756 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
1757 struct ethtool_link_ksettings *cmd);
1758 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
1759 const struct ethtool_link_ksettings *cmd);
1760 int phy_ethtool_nway_reset(struct net_device *ndev);
1761 int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size);
1762 void phy_package_leave(struct phy_device *phydev);
1763 int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
1764 int addr, size_t priv_size);
1766 #if IS_ENABLED(CONFIG_PHYLIB)
1767 int __init mdio_bus_init(void);
1768 void mdio_bus_exit(void);
1771 int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
1772 int phy_ethtool_get_sset_count(struct phy_device *phydev);
1773 int phy_ethtool_get_stats(struct phy_device *phydev,
1774 struct ethtool_stats *stats, u64 *data);
1776 static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
1778 struct phy_package_shared *shared = phydev->shared;
1783 return mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1786 static inline int __phy_package_read(struct phy_device *phydev, u32 regnum)
1788 struct phy_package_shared *shared = phydev->shared;
1793 return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
1796 static inline int phy_package_write(struct phy_device *phydev,
1797 u32 regnum, u16 val)
1799 struct phy_package_shared *shared = phydev->shared;
1804 return mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1807 static inline int __phy_package_write(struct phy_device *phydev,
1808 u32 regnum, u16 val)
1810 struct phy_package_shared *shared = phydev->shared;
1815 return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
1818 static inline bool __phy_package_set_once(struct phy_device *phydev,
1821 struct phy_package_shared *shared = phydev->shared;
1826 return !test_and_set_bit(b, &shared->flags);
1829 static inline bool phy_package_init_once(struct phy_device *phydev)
1831 return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
1834 static inline bool phy_package_probe_once(struct phy_device *phydev)
1836 return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
1839 extern struct bus_type mdio_bus_type;
1841 struct mdio_board_info {
1843 char modalias[MDIO_NAME_SIZE];
1845 const void *platform_data;
1848 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
1849 int mdiobus_register_board_info(const struct mdio_board_info *info,
1852 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
1861 * phy_module_driver() - Helper macro for registering PHY drivers
1862 * @__phy_drivers: array of PHY drivers to register
1863 * @__count: Numbers of members in array
1865 * Helper macro for PHY drivers which do not do anything special in module
1866 * init/exit. Each module may only use this macro once, and calling it
1867 * replaces module_init() and module_exit().
1869 #define phy_module_driver(__phy_drivers, __count) \
1870 static int __init phy_module_init(void) \
1872 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
1874 module_init(phy_module_init); \
1875 static void __exit phy_module_exit(void) \
1877 phy_drivers_unregister(__phy_drivers, __count); \
1879 module_exit(phy_module_exit)
1881 #define module_phy_driver(__phy_drivers) \
1882 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
1884 bool phy_driver_is_genphy(struct phy_device *phydev);
1885 bool phy_driver_is_genphy_10g(struct phy_device *phydev);
1887 #endif /* __PHY_H */