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/leds.h>
18 #include <linux/linkmode.h>
19 #include <linux/netlink.h>
20 #include <linux/mdio.h>
21 #include <linux/mii.h>
22 #include <linux/mii_timestamper.h>
23 #include <linux/module.h>
24 #include <linux/timer.h>
25 #include <linux/workqueue.h>
26 #include <linux/mod_devicetable.h>
27 #include <linux/u64_stats_sync.h>
28 #include <linux/irqreturn.h>
29 #include <linux/iopoll.h>
30 #include <linux/refcount.h>
32 #include <linux/atomic.h>
35 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
39 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
40 SUPPORTED_10baseT_Full)
42 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
43 SUPPORTED_100baseT_Full)
45 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
46 SUPPORTED_1000baseT_Full)
48 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init;
49 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init;
50 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1s_p2mp_features) __ro_after_init;
51 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init;
52 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init;
53 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init;
54 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init;
55 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init;
56 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
57 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_eee_cap1_features) __ro_after_init;
58 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_eee_cap2_features) __ro_after_init;
60 #define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features)
61 #define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features)
62 #define PHY_BASIC_T1S_P2MP_FEATURES ((unsigned long *)&phy_basic_t1s_p2mp_features)
63 #define PHY_GBIT_FEATURES ((unsigned long *)&phy_gbit_features)
64 #define PHY_GBIT_FIBRE_FEATURES ((unsigned long *)&phy_gbit_fibre_features)
65 #define PHY_GBIT_ALL_PORTS_FEATURES ((unsigned long *)&phy_gbit_all_ports_features)
66 #define PHY_10GBIT_FEATURES ((unsigned long *)&phy_10gbit_features)
67 #define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features)
68 #define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features)
69 #define PHY_EEE_CAP1_FEATURES ((unsigned long *)&phy_eee_cap1_features)
70 #define PHY_EEE_CAP2_FEATURES ((unsigned long *)&phy_eee_cap2_features)
72 extern const int phy_basic_ports_array[3];
73 extern const int phy_fibre_port_array[1];
74 extern const int phy_all_ports_features_array[7];
75 extern const int phy_10_100_features_array[4];
76 extern const int phy_basic_t1_features_array[3];
77 extern const int phy_basic_t1s_p2mp_features_array[2];
78 extern const int phy_gbit_features_array[2];
79 extern const int phy_10gbit_features_array[1];
82 * Set phydev->irq to PHY_POLL if interrupts are not supported,
83 * or not desired for this PHY. Set to PHY_MAC_INTERRUPT if
84 * the attached MAC driver handles the interrupt
87 #define PHY_MAC_INTERRUPT -2
89 #define PHY_IS_INTERNAL 0x00000001
90 #define PHY_RST_AFTER_CLK_EN 0x00000002
91 #define PHY_POLL_CABLE_TEST 0x00000004
92 #define PHY_ALWAYS_CALL_SUSPEND 0x00000008
93 #define MDIO_DEVICE_IS_PHY 0x80000000
96 * enum phy_interface_t - Interface Mode definitions
98 * @PHY_INTERFACE_MODE_NA: Not Applicable - don't touch
99 * @PHY_INTERFACE_MODE_INTERNAL: No interface, MAC and PHY combined
100 * @PHY_INTERFACE_MODE_MII: Media-independent interface
101 * @PHY_INTERFACE_MODE_GMII: Gigabit media-independent interface
102 * @PHY_INTERFACE_MODE_SGMII: Serial gigabit media-independent interface
103 * @PHY_INTERFACE_MODE_TBI: Ten Bit Interface
104 * @PHY_INTERFACE_MODE_REVMII: Reverse Media Independent Interface
105 * @PHY_INTERFACE_MODE_RMII: Reduced Media Independent Interface
106 * @PHY_INTERFACE_MODE_REVRMII: Reduced Media Independent Interface in PHY role
107 * @PHY_INTERFACE_MODE_RGMII: Reduced gigabit media-independent interface
108 * @PHY_INTERFACE_MODE_RGMII_ID: RGMII with Internal RX+TX delay
109 * @PHY_INTERFACE_MODE_RGMII_RXID: RGMII with Internal RX delay
110 * @PHY_INTERFACE_MODE_RGMII_TXID: RGMII with Internal RX delay
111 * @PHY_INTERFACE_MODE_RTBI: Reduced TBI
112 * @PHY_INTERFACE_MODE_SMII: Serial MII
113 * @PHY_INTERFACE_MODE_XGMII: 10 gigabit media-independent interface
114 * @PHY_INTERFACE_MODE_XLGMII:40 gigabit media-independent interface
115 * @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax
116 * @PHY_INTERFACE_MODE_PSGMII: Penta SGMII
117 * @PHY_INTERFACE_MODE_QSGMII: Quad SGMII
118 * @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII
119 * @PHY_INTERFACE_MODE_100BASEX: 100 BaseX
120 * @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX
121 * @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX
122 * @PHY_INTERFACE_MODE_5GBASER: 5G BaseR
123 * @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI
124 * @PHY_INTERFACE_MODE_XAUI: 10 Gigabit Attachment Unit Interface
125 * @PHY_INTERFACE_MODE_10GBASER: 10G BaseR
126 * @PHY_INTERFACE_MODE_25GBASER: 25G BaseR
127 * @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII
128 * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
129 * @PHY_INTERFACE_MODE_QUSGMII: Quad Universal SGMII
130 * @PHY_INTERFACE_MODE_1000BASEKX: 1000Base-KX - with Clause 73 AN
131 * @PHY_INTERFACE_MODE_10G_QXGMII: 10G-QXGMII - 4 ports over 10G USXGMII
132 * @PHY_INTERFACE_MODE_MAX: Book keeping
134 * Describes the interface between the MAC and PHY.
137 PHY_INTERFACE_MODE_NA,
138 PHY_INTERFACE_MODE_INTERNAL,
139 PHY_INTERFACE_MODE_MII,
140 PHY_INTERFACE_MODE_GMII,
141 PHY_INTERFACE_MODE_SGMII,
142 PHY_INTERFACE_MODE_TBI,
143 PHY_INTERFACE_MODE_REVMII,
144 PHY_INTERFACE_MODE_RMII,
145 PHY_INTERFACE_MODE_REVRMII,
146 PHY_INTERFACE_MODE_RGMII,
147 PHY_INTERFACE_MODE_RGMII_ID,
148 PHY_INTERFACE_MODE_RGMII_RXID,
149 PHY_INTERFACE_MODE_RGMII_TXID,
150 PHY_INTERFACE_MODE_RTBI,
151 PHY_INTERFACE_MODE_SMII,
152 PHY_INTERFACE_MODE_XGMII,
153 PHY_INTERFACE_MODE_XLGMII,
154 PHY_INTERFACE_MODE_MOCA,
155 PHY_INTERFACE_MODE_PSGMII,
156 PHY_INTERFACE_MODE_QSGMII,
157 PHY_INTERFACE_MODE_TRGMII,
158 PHY_INTERFACE_MODE_100BASEX,
159 PHY_INTERFACE_MODE_1000BASEX,
160 PHY_INTERFACE_MODE_2500BASEX,
161 PHY_INTERFACE_MODE_5GBASER,
162 PHY_INTERFACE_MODE_RXAUI,
163 PHY_INTERFACE_MODE_XAUI,
164 /* 10GBASE-R, XFI, SFI - single lane 10G Serdes */
165 PHY_INTERFACE_MODE_10GBASER,
166 PHY_INTERFACE_MODE_25GBASER,
167 PHY_INTERFACE_MODE_USXGMII,
168 /* 10GBASE-KR - with Clause 73 AN */
169 PHY_INTERFACE_MODE_10GKR,
170 PHY_INTERFACE_MODE_QUSGMII,
171 PHY_INTERFACE_MODE_1000BASEKX,
172 PHY_INTERFACE_MODE_10G_QXGMII,
173 PHY_INTERFACE_MODE_MAX,
176 /* PHY interface mode bitmap handling */
177 #define DECLARE_PHY_INTERFACE_MASK(name) \
178 DECLARE_BITMAP(name, PHY_INTERFACE_MODE_MAX)
180 static inline void phy_interface_zero(unsigned long *intf)
182 bitmap_zero(intf, PHY_INTERFACE_MODE_MAX);
185 static inline bool phy_interface_empty(const unsigned long *intf)
187 return bitmap_empty(intf, PHY_INTERFACE_MODE_MAX);
190 static inline void phy_interface_and(unsigned long *dst, const unsigned long *a,
191 const unsigned long *b)
193 bitmap_and(dst, a, b, PHY_INTERFACE_MODE_MAX);
196 static inline void phy_interface_or(unsigned long *dst, const unsigned long *a,
197 const unsigned long *b)
199 bitmap_or(dst, a, b, PHY_INTERFACE_MODE_MAX);
202 static inline void phy_interface_set_rgmii(unsigned long *intf)
204 __set_bit(PHY_INTERFACE_MODE_RGMII, intf);
205 __set_bit(PHY_INTERFACE_MODE_RGMII_ID, intf);
206 __set_bit(PHY_INTERFACE_MODE_RGMII_RXID, intf);
207 __set_bit(PHY_INTERFACE_MODE_RGMII_TXID, intf);
211 * phy_supported_speeds - return all speeds currently supported by a PHY device
213 unsigned int phy_supported_speeds(struct phy_device *phy,
214 unsigned int *speeds,
218 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
219 * @interface: enum phy_interface_t value
221 * Description: maps enum &phy_interface_t defined in this file
222 * into the device tree binding of 'phy-mode', so that Ethernet
223 * device driver can get PHY interface from device tree.
225 static inline const char *phy_modes(phy_interface_t interface)
228 case PHY_INTERFACE_MODE_NA:
230 case PHY_INTERFACE_MODE_INTERNAL:
232 case PHY_INTERFACE_MODE_MII:
234 case PHY_INTERFACE_MODE_GMII:
236 case PHY_INTERFACE_MODE_SGMII:
238 case PHY_INTERFACE_MODE_TBI:
240 case PHY_INTERFACE_MODE_REVMII:
242 case PHY_INTERFACE_MODE_RMII:
244 case PHY_INTERFACE_MODE_REVRMII:
246 case PHY_INTERFACE_MODE_RGMII:
248 case PHY_INTERFACE_MODE_RGMII_ID:
250 case PHY_INTERFACE_MODE_RGMII_RXID:
252 case PHY_INTERFACE_MODE_RGMII_TXID:
254 case PHY_INTERFACE_MODE_RTBI:
256 case PHY_INTERFACE_MODE_SMII:
258 case PHY_INTERFACE_MODE_XGMII:
260 case PHY_INTERFACE_MODE_XLGMII:
262 case PHY_INTERFACE_MODE_MOCA:
264 case PHY_INTERFACE_MODE_PSGMII:
266 case PHY_INTERFACE_MODE_QSGMII:
268 case PHY_INTERFACE_MODE_TRGMII:
270 case PHY_INTERFACE_MODE_1000BASEX:
272 case PHY_INTERFACE_MODE_1000BASEKX:
273 return "1000base-kx";
274 case PHY_INTERFACE_MODE_2500BASEX:
276 case PHY_INTERFACE_MODE_5GBASER:
278 case PHY_INTERFACE_MODE_RXAUI:
280 case PHY_INTERFACE_MODE_XAUI:
282 case PHY_INTERFACE_MODE_10GBASER:
284 case PHY_INTERFACE_MODE_25GBASER:
286 case PHY_INTERFACE_MODE_USXGMII:
288 case PHY_INTERFACE_MODE_10GKR:
290 case PHY_INTERFACE_MODE_100BASEX:
292 case PHY_INTERFACE_MODE_QUSGMII:
294 case PHY_INTERFACE_MODE_10G_QXGMII:
301 #define PHY_INIT_TIMEOUT 100000
302 #define PHY_FORCE_TIMEOUT 10
304 #define PHY_MAX_ADDR 32
306 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
307 #define PHY_ID_FMT "%s:%02x"
309 #define MII_BUS_ID_SIZE 61
312 struct kernel_hwtstamp_config;
315 struct sfp_upstream_ops;
319 * struct mdio_bus_stats - Statistics counters for MDIO busses
320 * @transfers: Total number of transfers, i.e. @writes + @reads
321 * @errors: Number of MDIO transfers that returned an error
322 * @writes: Number of write transfers
323 * @reads: Number of read transfers
324 * @syncp: Synchronisation for incrementing statistics
326 struct mdio_bus_stats {
327 u64_stats_t transfers;
331 /* Must be last, add new statistics above */
332 struct u64_stats_sync syncp;
336 * struct phy_package_shared - Shared information in PHY packages
337 * @base_addr: Base PHY address of PHY package used to combine PHYs
338 * in one package and for offset calculation of phy_package_read/write
339 * @np: Pointer to the Device Node if PHY package defined in DT
340 * @refcnt: Number of PHYs connected to this shared data
341 * @flags: Initialization of PHY package
342 * @priv_size: Size of the shared private data @priv
343 * @priv: Driver private data shared across a PHY package
345 * Represents a shared structure between different phydev's in the same
346 * package, for example a quad PHY. See phy_package_join() and
347 * phy_package_leave().
349 struct phy_package_shared {
351 /* With PHY package defined in DT this points to the PHY package node */
352 struct device_node *np;
357 /* private data pointer */
358 /* note that this pointer is shared between different phydevs and
359 * the user has to take care of appropriate locking. It is allocated
360 * and freed automatically by phy_package_join() and
361 * phy_package_leave().
366 /* used as bit number in atomic bitops */
367 #define PHY_SHARED_F_INIT_DONE 0
368 #define PHY_SHARED_F_PROBE_DONE 1
371 * struct mii_bus - Represents an MDIO bus
373 * @owner: Who owns this device
374 * @name: User friendly name for this MDIO device, or driver name
375 * @id: Unique identifier for this bus, typical from bus hierarchy
376 * @priv: Driver private data
378 * The Bus class for PHYs. Devices which provide access to
379 * PHYs should register using this structure
382 struct module *owner;
384 char id[MII_BUS_ID_SIZE];
386 /** @read: Perform a read transfer on the bus */
387 int (*read)(struct mii_bus *bus, int addr, int regnum);
388 /** @write: Perform a write transfer on the bus */
389 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
390 /** @read_c45: Perform a C45 read transfer on the bus */
391 int (*read_c45)(struct mii_bus *bus, int addr, int devnum, int regnum);
392 /** @write_c45: Perform a C45 write transfer on the bus */
393 int (*write_c45)(struct mii_bus *bus, int addr, int devnum,
394 int regnum, u16 val);
395 /** @reset: Perform a reset of the bus */
396 int (*reset)(struct mii_bus *bus);
398 /** @stats: Statistic counters per device on the bus */
399 struct mdio_bus_stats stats[PHY_MAX_ADDR];
402 * @mdio_lock: A lock to ensure that only one thing can read/write
403 * the MDIO bus at a time
405 struct mutex mdio_lock;
407 /** @parent: Parent device of this bus */
408 struct device *parent;
409 /** @state: State of bus structure */
411 MDIOBUS_ALLOCATED = 1,
413 MDIOBUS_UNREGISTERED,
417 /** @dev: Kernel device representation */
420 /** @mdio_map: list of all MDIO devices on bus */
421 struct mdio_device *mdio_map[PHY_MAX_ADDR];
423 /** @phy_mask: PHY addresses to be ignored when probing */
426 /** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */
427 u32 phy_ignore_ta_mask;
430 * @irq: An array of interrupts, each PHY's interrupt at the index
431 * matching its address
433 int irq[PHY_MAX_ADDR];
435 /** @reset_delay_us: GPIO reset pulse width in microseconds */
437 /** @reset_post_delay_us: GPIO reset deassert delay in microseconds */
438 int reset_post_delay_us;
439 /** @reset_gpiod: Reset GPIO descriptor pointer */
440 struct gpio_desc *reset_gpiod;
442 /** @shared_lock: protect access to the shared element */
443 struct mutex shared_lock;
445 /** @shared: shared state across different PHYs */
446 struct phy_package_shared *shared[PHY_MAX_ADDR];
448 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
450 struct mii_bus *mdiobus_alloc_size(size_t size);
453 * mdiobus_alloc - Allocate an MDIO bus structure
455 * The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready
456 * for the driver to register the bus.
458 static inline struct mii_bus *mdiobus_alloc(void)
460 return mdiobus_alloc_size(0);
463 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
464 int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
465 struct module *owner);
466 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
467 #define devm_mdiobus_register(dev, bus) \
468 __devm_mdiobus_register(dev, bus, THIS_MODULE)
470 void mdiobus_unregister(struct mii_bus *bus);
471 void mdiobus_free(struct mii_bus *bus);
472 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
473 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
475 return devm_mdiobus_alloc_size(dev, 0);
478 struct mii_bus *mdio_find_bus(const char *mdio_name);
479 struct phy_device *mdiobus_scan_c22(struct mii_bus *bus, int addr);
481 #define PHY_INTERRUPT_DISABLED false
482 #define PHY_INTERRUPT_ENABLED true
485 * enum phy_state - PHY state machine states:
487 * @PHY_DOWN: PHY device and driver are not ready for anything. probe
488 * should be called if and only if the PHY is in this state,
489 * given that the PHY device exists.
490 * - PHY driver probe function will set the state to @PHY_READY
492 * @PHY_READY: PHY is ready to send and receive packets, but the
493 * controller is not. By default, PHYs which do not implement
494 * probe will be set to this state by phy_probe().
495 * - start will set the state to UP
497 * @PHY_UP: The PHY and attached device are ready to do work.
498 * Interrupts should be started here.
499 * - timer moves to @PHY_NOLINK or @PHY_RUNNING
501 * @PHY_NOLINK: PHY is up, but not currently plugged in.
502 * - irq or timer will set @PHY_RUNNING if link comes back
503 * - phy_stop moves to @PHY_HALTED
505 * @PHY_RUNNING: PHY is currently up, running, and possibly sending
506 * and/or receiving packets
507 * - irq or timer will set @PHY_NOLINK if link goes down
508 * - phy_stop moves to @PHY_HALTED
510 * @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending
511 * is not expected to work, carrier will be indicated as down. PHY will be
512 * poll once per second, or on interrupt for it current state.
513 * Once complete, move to UP to restart the PHY.
514 * - phy_stop aborts the running test and moves to @PHY_HALTED
516 * @PHY_HALTED: PHY is up, but no polling or interrupts are done.
517 * - phy_start moves to @PHY_UP
519 * @PHY_ERROR: PHY is up, but is in an error state.
520 * - phy_stop moves to @PHY_HALTED
533 #define MDIO_MMD_NUM 32
536 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
537 * @devices_in_package: IEEE 802.3 devices in package register value.
538 * @mmds_present: bit vector of MMDs present.
539 * @device_ids: The device identifer for each present device.
541 struct phy_c45_device_ids {
542 u32 devices_in_package;
544 u32 device_ids[MDIO_MMD_NUM];
547 struct macsec_context;
551 * struct phy_device - An instance of a PHY
553 * @mdio: MDIO bus this PHY is on
554 * @drv: Pointer to the driver for this PHY instance
555 * @devlink: Create a link between phy dev and mac dev, if the external phy
556 * used by current mac interface is managed by another mac interface.
557 * @phyindex: Unique id across the phy's parent tree of phys to address the PHY
558 * from userspace, similar to ifindex. A zero index means the PHY
559 * wasn't assigned an id yet.
560 * @phy_id: UID for this device found during discovery
561 * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
562 * @is_c45: Set to true if this PHY uses clause 45 addressing.
563 * @is_internal: Set to true if this PHY is internal to a MAC.
564 * @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc.
565 * @is_gigabit_capable: Set to true if PHY supports 1000Mbps
566 * @has_fixups: Set to true if this PHY has fixups/quirks.
567 * @suspended: Set to true if this PHY has been suspended successfully.
568 * @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus.
569 * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
570 * @loopback_enabled: Set true if this PHY has been loopbacked successfully.
571 * @downshifted_rate: Set true if link speed has been downshifted.
572 * @is_on_sfp_module: Set true if PHY is located on an SFP module.
573 * @mac_managed_pm: Set true if MAC driver takes of suspending/resuming PHY
574 * @wol_enabled: Set to true if the PHY or the attached MAC have Wake-on-LAN
576 * @state: State of the PHY for management purposes
577 * @dev_flags: Device-specific flags used by the PHY driver.
579 * - Bits [15:0] are free to use by the PHY driver to communicate
580 * driver specific behavior.
581 * - Bits [23:16] are currently reserved for future use.
582 * - Bits [31:24] are reserved for defining generic
583 * PHY driver behavior.
584 * @irq: IRQ number of the PHY's interrupt (-1 if none)
585 * @phylink: Pointer to phylink instance for this PHY
586 * @sfp_bus_attached: Flag indicating whether the SFP bus has been attached
587 * @sfp_bus: SFP bus attached to this PHY's fiber port
588 * @attached_dev: The attached enet driver's device instance ptr
589 * @adjust_link: Callback for the enet controller to respond to changes: in the
591 * @phy_link_change: Callback for phylink for notification of link change
592 * @macsec_ops: MACsec offloading ops.
594 * @speed: Current link speed
595 * @duplex: Current duplex
596 * @port: Current port
597 * @pause: Current pause
598 * @asym_pause: Current asymmetric pause
599 * @supported: Combined MAC/PHY supported linkmodes
600 * @advertising: Currently advertised linkmodes
601 * @adv_old: Saved advertised while power saving for WoL
602 * @supported_eee: supported PHY EEE linkmodes
603 * @advertising_eee: Currently advertised EEE linkmodes
604 * @enable_tx_lpi: When True, MAC should transmit LPI to PHY
605 * @eee_cfg: User configuration of EEE
606 * @lp_advertising: Current link partner advertised linkmodes
607 * @host_interfaces: PHY interface modes supported by host
608 * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
609 * @autoneg: Flag autoneg being used
610 * @rate_matching: Current rate matching mode
611 * @link: Current link state
612 * @autoneg_complete: Flag auto negotiation of the link has completed
613 * @mdix: Current crossover
614 * @mdix_ctrl: User setting of crossover
615 * @pma_extable: Cached value of PMA/PMD Extended Abilities Register
616 * @interrupts: Flag interrupts have been enabled
617 * @irq_suspended: Flag indicating PHY is suspended and therefore interrupt
618 * handling shall be postponed until PHY has resumed
619 * @irq_rerun: Flag indicating interrupts occurred while PHY was suspended,
620 * requiring a rerun of the interrupt handler after resume
621 * @default_timestamp: Flag indicating whether we are using the phy
622 * timestamp as the default one
623 * @interface: enum phy_interface_t value
624 * @possible_interfaces: bitmap if interface modes that the attached PHY
625 * will switch between depending on media speed.
626 * @skb: Netlink message for cable diagnostics
627 * @nest: Netlink nest used for cable diagnostics
628 * @ehdr: nNtlink header for cable diagnostics
629 * @phy_led_triggers: Array of LED triggers
630 * @phy_num_led_triggers: Number of triggers in @phy_led_triggers
631 * @led_link_trigger: LED trigger for link up/down
632 * @last_triggered: last LED trigger for link speed
633 * @leds: list of PHY LED structures
634 * @master_slave_set: User requested master/slave configuration
635 * @master_slave_get: Current master/slave advertisement
636 * @master_slave_state: Current master/slave configuration
637 * @mii_ts: Pointer to time stamper callbacks
638 * @psec: Pointer to Power Sourcing Equipment control struct
639 * @lock: Mutex for serialization access to PHY
640 * @state_queue: Work queue for state machine
641 * @link_down_events: Number of times link was lost
642 * @shared: Pointer to private data shared by phys in one package
643 * @priv: Pointer to driver private data
645 * interrupts currently only supports enabled or disabled,
646 * but could be changed in the future to support enabling
647 * and disabling specific interrupts
649 * Contains some infrastructure for polling and interrupt
650 * handling, as well as handling shifts in PHY hardware state
653 struct mdio_device mdio;
655 /* Information about the PHY type */
656 /* And management functions */
657 const struct phy_driver *drv;
659 struct device_link *devlink;
664 struct phy_c45_device_ids c45_ids;
666 unsigned is_internal:1;
667 unsigned is_pseudo_fixed_link:1;
668 unsigned is_gigabit_capable:1;
669 unsigned has_fixups:1;
670 unsigned suspended:1;
671 unsigned suspended_by_mdio_bus:1;
672 unsigned sysfs_links:1;
673 unsigned loopback_enabled:1;
674 unsigned downshifted_rate:1;
675 unsigned is_on_sfp_module:1;
676 unsigned mac_managed_pm:1;
677 unsigned wol_enabled:1;
680 /* The most recently read link state */
682 unsigned autoneg_complete:1;
684 /* Interrupts are enabled */
685 unsigned interrupts:1;
686 unsigned irq_suspended:1;
687 unsigned irq_rerun:1;
689 unsigned default_timestamp:1;
693 enum phy_state state;
697 phy_interface_t interface;
698 DECLARE_PHY_INTERFACE_MASK(possible_interfaces);
701 * forced speed & duplex (no autoneg)
702 * partner speed & duplex & pause (autoneg)
711 u8 master_slave_state;
713 /* Union of PHY and Attached devices' supported link modes */
714 /* See ethtool.h for more info */
715 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
716 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
717 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
718 /* used with phy_speed_down */
719 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
720 /* used for eee validation and configuration*/
721 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported_eee);
722 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising_eee);
724 /* Host supported PHY interface types. Should be ignored if empty. */
725 DECLARE_PHY_INTERFACE_MASK(host_interfaces);
727 /* Energy efficient ethernet modes which should be prohibited */
728 u32 eee_broken_modes;
730 struct eee_config eee_cfg;
732 #ifdef CONFIG_LED_TRIGGER_PHY
733 struct phy_led_trigger *phy_led_triggers;
734 unsigned int phy_num_led_triggers;
735 struct phy_led_trigger *last_triggered;
737 struct phy_led_trigger *led_link_trigger;
739 struct list_head leds;
742 * Interrupt number for this PHY
743 * -1 means no interrupt
747 /* private data pointer */
748 /* For use by PHYs to maintain extra state */
751 /* shared data pointer */
752 /* For use by PHYs inside the same package that need a shared state. */
753 struct phy_package_shared *shared;
755 /* Reporting cable test results */
760 /* Interrupt and Polling infrastructure */
761 struct delayed_work state_queue;
765 /* This may be modified under the rtnl lock */
766 bool sfp_bus_attached;
767 struct sfp_bus *sfp_bus;
768 struct phylink *phylink;
769 struct net_device *attached_dev;
770 struct mii_timestamper *mii_ts;
771 struct pse_control *psec;
778 unsigned int link_down_events;
780 void (*phy_link_change)(struct phy_device *phydev, bool up);
781 void (*adjust_link)(struct net_device *dev);
783 #if IS_ENABLED(CONFIG_MACSEC)
784 /* MACsec management functions */
785 const struct macsec_ops *macsec_ops;
789 /* Generic phy_device::dev_flags */
790 #define PHY_F_NO_IRQ 0x80000000
791 #define PHY_F_RXC_ALWAYS_ON 0x40000000
793 static inline struct phy_device *to_phy_device(const struct device *dev)
795 return container_of(to_mdio_device(dev), struct phy_device, mdio);
799 * struct phy_tdr_config - Configuration of a TDR raw test
801 * @first: Distance for first data collection point
802 * @last: Distance for last data collection point
803 * @step: Step between data collection points
804 * @pair: Bitmap of cable pairs to collect data for
806 * A structure containing possible configuration parameters
807 * for a TDR cable test. The driver does not need to implement
808 * all the parameters, but should report what is actually used.
809 * All distances are in centimeters.
811 struct phy_tdr_config {
817 #define PHY_PAIR_ALL -1
820 * struct phy_plca_cfg - Configuration of the PLCA (Physical Layer Collision
821 * Avoidance) Reconciliation Sublayer.
823 * @version: read-only PLCA register map version. -1 = not available. Ignored
824 * when setting the configuration. Format is the same as reported by the PLCA
825 * IDVER register (31.CA00). -1 = not available.
826 * @enabled: PLCA configured mode (enabled/disabled). -1 = not available / don't
827 * set. 0 = disabled, anything else = enabled.
828 * @node_id: the PLCA local node identifier. -1 = not available / don't set.
829 * Allowed values [0 .. 254]. 255 = node disabled.
830 * @node_cnt: the PLCA node count (maximum number of nodes having a TO). Only
831 * meaningful for the coordinator (node_id = 0). -1 = not available / don't
832 * set. Allowed values [1 .. 255].
833 * @to_tmr: The value of the PLCA to_timer in bit-times, which determines the
834 * PLCA transmit opportunity window opening. See IEEE802.3 Clause 148 for
835 * more details. The to_timer shall be set equal over all nodes.
836 * -1 = not available / don't set. Allowed values [0 .. 255].
837 * @burst_cnt: controls how many additional frames a node is allowed to send in
838 * single transmit opportunity (TO). The default value of 0 means that the
839 * node is allowed exactly one frame per TO. A value of 1 allows two frames
840 * per TO, and so on. -1 = not available / don't set.
841 * Allowed values [0 .. 255].
842 * @burst_tmr: controls how many bit times to wait for the MAC to send a new
843 * frame before interrupting the burst. This value should be set to a value
844 * greater than the MAC inter-packet gap (which is typically 96 bits).
845 * -1 = not available / don't set. Allowed values [0 .. 255].
847 * A structure containing configuration parameters for setting/getting the PLCA
848 * RS configuration. The driver does not need to implement all the parameters,
849 * but should report what is actually used.
851 struct phy_plca_cfg {
862 * struct phy_plca_status - Status of the PLCA (Physical Layer Collision
863 * Avoidance) Reconciliation Sublayer.
865 * @pst: The PLCA status as reported by the PST bit in the PLCA STATUS
866 * register(31.CA03), indicating BEACON activity.
868 * A structure containing status information of the PLCA RS configuration.
869 * The driver does not need to implement all the parameters, but should report
870 * what is actually used.
872 struct phy_plca_status {
876 /* Modes for PHY LED configuration */
878 PHY_LED_ACTIVE_LOW = 0,
879 PHY_LED_INACTIVE_HIGH_IMPEDANCE = 1,
886 * struct phy_led: An LED driven by the PHY
888 * @list: List of LEDs
889 * @phydev: PHY this LED is attached to
890 * @led_cdev: Standard LED class structure
891 * @index: Number of the LED
894 struct list_head list;
895 struct phy_device *phydev;
896 struct led_classdev led_cdev;
900 #define to_phy_led(d) container_of(d, struct phy_led, led_cdev)
903 * struct phy_driver - Driver structure for a particular PHY type
905 * @mdiodrv: Data common to all MDIO devices
906 * @phy_id: The result of reading the UID registers of this PHY
907 * type, and ANDing them with the phy_id_mask. This driver
908 * only works for PHYs with IDs which match this field
909 * @name: The friendly name of this PHY type
910 * @phy_id_mask: Defines the important bits of the phy_id
911 * @features: A mandatory list of features (speed, duplex, etc)
912 * supported by this PHY
913 * @flags: A bitfield defining certain other features this PHY
914 * supports (like interrupts)
915 * @driver_data: Static driver data
917 * All functions are optional. If config_aneg or read_status
918 * are not implemented, the phy core uses the genphy versions.
919 * Note that none of these functions should be called from
920 * interrupt time. The goal is for the bus read/write functions
921 * to be able to block when the bus transaction is happening,
922 * and be freed up by an interrupt (The MPC85xx has this ability,
923 * though it is not currently supported in the driver).
926 struct mdio_driver_common mdiodrv;
930 const unsigned long * const features;
932 const void *driver_data;
935 * @soft_reset: Called to issue a PHY software reset
937 int (*soft_reset)(struct phy_device *phydev);
940 * @config_init: Called to initialize the PHY,
941 * including after a reset
943 int (*config_init)(struct phy_device *phydev);
946 * @probe: Called during discovery. Used to set
947 * up device-specific structures, if any
949 int (*probe)(struct phy_device *phydev);
952 * @get_features: Probe the hardware to determine what
953 * abilities it has. Should only set phydev->supported.
955 int (*get_features)(struct phy_device *phydev);
958 * @get_rate_matching: Get the supported type of rate matching for a
959 * particular phy interface. This is used by phy consumers to determine
960 * whether to advertise lower-speed modes for that interface. It is
961 * assumed that if a rate matching mode is supported on an interface,
962 * then that interface's rate can be adapted to all slower link speeds
963 * supported by the phy. If the interface is not supported, this should
964 * return %RATE_MATCH_NONE.
966 int (*get_rate_matching)(struct phy_device *phydev,
967 phy_interface_t iface);
969 /* PHY Power Management */
970 /** @suspend: Suspend the hardware, saving state if needed */
971 int (*suspend)(struct phy_device *phydev);
972 /** @resume: Resume the hardware, restoring state if needed */
973 int (*resume)(struct phy_device *phydev);
976 * @config_aneg: Configures the advertisement and resets
977 * autonegotiation if phydev->autoneg is on,
978 * forces the speed to the current settings in phydev
979 * if phydev->autoneg is off
981 int (*config_aneg)(struct phy_device *phydev);
983 /** @aneg_done: Determines the auto negotiation result */
984 int (*aneg_done)(struct phy_device *phydev);
986 /** @read_status: Determines the negotiated speed and duplex */
987 int (*read_status)(struct phy_device *phydev);
990 * @config_intr: Enables or disables interrupts.
991 * It should also clear any pending interrupts prior to enabling the
992 * IRQs and after disabling them.
994 int (*config_intr)(struct phy_device *phydev);
996 /** @handle_interrupt: Override default interrupt handling */
997 irqreturn_t (*handle_interrupt)(struct phy_device *phydev);
999 /** @remove: Clears up any memory if needed */
1000 void (*remove)(struct phy_device *phydev);
1003 * @match_phy_device: Returns true if this is a suitable
1004 * driver for the given phydev. If NULL, matching is based on
1005 * phy_id and phy_id_mask.
1007 int (*match_phy_device)(struct phy_device *phydev);
1010 * @set_wol: Some devices (e.g. qnap TS-119P II) require PHY
1011 * register changes to enable Wake on LAN, so set_wol is
1012 * provided to be called in the ethernet driver's set_wol
1015 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
1018 * @get_wol: See set_wol, but for checking whether Wake on LAN
1021 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
1024 * @link_change_notify: Called to inform a PHY device driver
1025 * when the core is about to change the link state. This
1026 * callback is supposed to be used as fixup hook for drivers
1027 * that need to take action when the link state
1028 * changes. Drivers are by no means allowed to mess with the
1029 * PHY device structure in their implementations.
1031 void (*link_change_notify)(struct phy_device *dev);
1034 * @read_mmd: PHY specific driver override for reading a MMD
1035 * register. This function is optional for PHY specific
1036 * drivers. When not provided, the default MMD read function
1037 * will be used by phy_read_mmd(), which will use either a
1038 * direct read for Clause 45 PHYs or an indirect read for
1039 * Clause 22 PHYs. devnum is the MMD device number within the
1040 * PHY device, regnum is the register within the selected MMD
1043 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
1046 * @write_mmd: PHY specific driver override for writing a MMD
1047 * register. This function is optional for PHY specific
1048 * drivers. When not provided, the default MMD write function
1049 * will be used by phy_write_mmd(), which will use either a
1050 * direct write for Clause 45 PHYs, or an indirect write for
1051 * Clause 22 PHYs. devnum is the MMD device number within the
1052 * PHY device, regnum is the register within the selected MMD
1053 * device. val is the value to be written.
1055 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
1058 /** @read_page: Return the current PHY register page number */
1059 int (*read_page)(struct phy_device *dev);
1060 /** @write_page: Set the current PHY register page number */
1061 int (*write_page)(struct phy_device *dev, int page);
1064 * @module_info: Get the size and type of the eeprom contained
1065 * within a plug-in module
1067 int (*module_info)(struct phy_device *dev,
1068 struct ethtool_modinfo *modinfo);
1071 * @module_eeprom: Get the eeprom information from the plug-in
1074 int (*module_eeprom)(struct phy_device *dev,
1075 struct ethtool_eeprom *ee, u8 *data);
1077 /** @cable_test_start: Start a cable test */
1078 int (*cable_test_start)(struct phy_device *dev);
1080 /** @cable_test_tdr_start: Start a raw TDR cable test */
1081 int (*cable_test_tdr_start)(struct phy_device *dev,
1082 const struct phy_tdr_config *config);
1085 * @cable_test_get_status: Once per second, or on interrupt,
1086 * request the status of the test.
1088 int (*cable_test_get_status)(struct phy_device *dev, bool *finished);
1090 /* Get statistics from the PHY using ethtool */
1091 /** @get_sset_count: Number of statistic counters */
1092 int (*get_sset_count)(struct phy_device *dev);
1093 /** @get_strings: Names of the statistic counters */
1094 void (*get_strings)(struct phy_device *dev, u8 *data);
1095 /** @get_stats: Return the statistic counter values */
1096 void (*get_stats)(struct phy_device *dev,
1097 struct ethtool_stats *stats, u64 *data);
1099 /* Get and Set PHY tunables */
1100 /** @get_tunable: Return the value of a tunable */
1101 int (*get_tunable)(struct phy_device *dev,
1102 struct ethtool_tunable *tuna, void *data);
1103 /** @set_tunable: Set the value of a tunable */
1104 int (*set_tunable)(struct phy_device *dev,
1105 struct ethtool_tunable *tuna,
1107 /** @set_loopback: Set the loopback mood of the PHY */
1108 int (*set_loopback)(struct phy_device *dev, bool enable);
1109 /** @get_sqi: Get the signal quality indication */
1110 int (*get_sqi)(struct phy_device *dev);
1111 /** @get_sqi_max: Get the maximum signal quality indication */
1112 int (*get_sqi_max)(struct phy_device *dev);
1114 /* PLCA RS interface */
1115 /** @get_plca_cfg: Return the current PLCA configuration */
1116 int (*get_plca_cfg)(struct phy_device *dev,
1117 struct phy_plca_cfg *plca_cfg);
1118 /** @set_plca_cfg: Set the PLCA configuration */
1119 int (*set_plca_cfg)(struct phy_device *dev,
1120 const struct phy_plca_cfg *plca_cfg);
1121 /** @get_plca_status: Return the current PLCA status info */
1122 int (*get_plca_status)(struct phy_device *dev,
1123 struct phy_plca_status *plca_st);
1126 * @led_brightness_set: Set a PHY LED brightness. Index
1127 * indicates which of the PHYs led should be set. Value
1128 * follows the standard LED class meaning, e.g. LED_OFF,
1129 * LED_HALF, LED_FULL.
1131 int (*led_brightness_set)(struct phy_device *dev,
1132 u8 index, enum led_brightness value);
1135 * @led_blink_set: Set a PHY LED blinking. Index indicates
1136 * which of the PHYs led should be configured to blink. Delays
1137 * are in milliseconds and if both are zero then a sensible
1138 * default should be chosen. The call should adjust the
1139 * timings in that case and if it can't match the values
1140 * specified exactly.
1142 int (*led_blink_set)(struct phy_device *dev, u8 index,
1143 unsigned long *delay_on,
1144 unsigned long *delay_off);
1146 * @led_hw_is_supported: Can the HW support the given rules.
1147 * @dev: PHY device which has the LED
1148 * @index: Which LED of the PHY device
1149 * @rules The core is interested in these rules
1151 * Return 0 if yes, -EOPNOTSUPP if not, or an error code.
1153 int (*led_hw_is_supported)(struct phy_device *dev, u8 index,
1154 unsigned long rules);
1156 * @led_hw_control_set: Set the HW to control the LED
1157 * @dev: PHY device which has the LED
1158 * @index: Which LED of the PHY device
1159 * @rules The rules used to control the LED
1161 * Returns 0, or a an error code.
1163 int (*led_hw_control_set)(struct phy_device *dev, u8 index,
1164 unsigned long rules);
1166 * @led_hw_control_get: Get how the HW is controlling the LED
1167 * @dev: PHY device which has the LED
1168 * @index: Which LED of the PHY device
1169 * @rules Pointer to the rules used to control the LED
1171 * Set *@rules to how the HW is currently blinking. Returns 0
1172 * on success, or a error code if the current blinking cannot
1173 * be represented in rules, or some other error happens.
1175 int (*led_hw_control_get)(struct phy_device *dev, u8 index,
1176 unsigned long *rules);
1179 * @led_polarity_set: Set the LED polarity modes
1180 * @dev: PHY device which has the LED
1181 * @index: Which LED of the PHY device
1182 * @modes: bitmap of LED polarity modes
1184 * Configure LED with all the required polarity modes in @modes
1185 * to make it correctly turn ON or OFF.
1187 * Returns 0, or an error code.
1189 int (*led_polarity_set)(struct phy_device *dev, int index,
1190 unsigned long modes);
1192 #define to_phy_driver(d) container_of_const(to_mdio_common_driver(d), \
1193 struct phy_driver, mdiodrv)
1195 #define PHY_ANY_ID "MATCH ANY PHY"
1196 #define PHY_ANY_UID 0xffffffff
1198 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
1199 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
1200 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
1203 * phy_id_compare - compare @id1 with @id2 taking account of @mask
1204 * @id1: first PHY ID
1205 * @id2: second PHY ID
1206 * @mask: the PHY ID mask, set bits are significant in matching
1208 * Return true if the bits from @id1 and @id2 specified by @mask match.
1209 * This uses an equivalent test to (@id & @mask) == (@phy_id & @mask).
1211 static inline bool phy_id_compare(u32 id1, u32 id2, u32 mask)
1213 return !((id1 ^ id2) & mask);
1217 * phydev_id_compare - compare @id with the PHY's Clause 22 ID
1218 * @phydev: the PHY device
1219 * @id: the PHY ID to be matched
1221 * Compare the @phydev clause 22 ID with the provided @id and return true or
1222 * false depending whether it matches, using the bound driver mask. The
1223 * @phydev must be bound to a driver.
1225 static inline bool phydev_id_compare(struct phy_device *phydev, u32 id)
1227 return phy_id_compare(id, phydev->phy_id, phydev->drv->phy_id_mask);
1230 /* A Structure for boards to register fixups with the PHY Lib */
1232 struct list_head list;
1233 char bus_id[MII_BUS_ID_SIZE + 3];
1236 int (*run)(struct phy_device *phydev);
1239 const char *phy_speed_to_str(int speed);
1240 const char *phy_duplex_to_str(unsigned int duplex);
1241 const char *phy_rate_matching_to_str(int rate_matching);
1243 int phy_interface_num_ports(phy_interface_t interface);
1245 /* A structure for mapping a particular speed and duplex
1246 * combination to a particular SUPPORTED and ADVERTISED value
1248 struct phy_setting {
1254 const struct phy_setting *
1255 phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
1257 size_t phy_speeds(unsigned int *speeds, size_t size,
1258 unsigned long *mask);
1259 void of_set_phy_supported(struct phy_device *phydev);
1260 void of_set_phy_eee_broken(struct phy_device *phydev);
1261 int phy_speed_down_core(struct phy_device *phydev);
1264 * phy_is_started - Convenience function to check whether PHY is started
1265 * @phydev: The phy_device struct
1267 static inline bool phy_is_started(struct phy_device *phydev)
1269 return phydev->state >= PHY_UP;
1272 void phy_resolve_aneg_pause(struct phy_device *phydev);
1273 void phy_resolve_aneg_linkmode(struct phy_device *phydev);
1274 void phy_check_downshift(struct phy_device *phydev);
1277 * phy_read - Convenience function for reading a given PHY register
1278 * @phydev: the phy_device struct
1279 * @regnum: register number to read
1281 * NOTE: MUST NOT be called from interrupt context,
1282 * because the bus read/write functions may wait for an interrupt
1283 * to conclude the operation.
1285 static inline int phy_read(struct phy_device *phydev, u32 regnum)
1287 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1290 #define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \
1291 timeout_us, sleep_before_read) \
1294 __ret = read_poll_timeout(__val = phy_read, val, \
1295 __val < 0 || (cond), \
1296 sleep_us, timeout_us, sleep_before_read, phydev, regnum); \
1300 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1305 * __phy_read - convenience function for reading a given PHY register
1306 * @phydev: the phy_device struct
1307 * @regnum: register number to read
1309 * The caller must have taken the MDIO bus lock.
1311 static inline int __phy_read(struct phy_device *phydev, u32 regnum)
1313 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
1317 * phy_write - Convenience function for writing a given PHY register
1318 * @phydev: the phy_device struct
1319 * @regnum: register number to write
1320 * @val: value to write to @regnum
1322 * NOTE: MUST NOT be called from interrupt context,
1323 * because the bus read/write functions may wait for an interrupt
1324 * to conclude the operation.
1326 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1328 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
1332 * __phy_write - Convenience function for writing a given PHY register
1333 * @phydev: the phy_device struct
1334 * @regnum: register number to write
1335 * @val: value to write to @regnum
1337 * The caller must have taken the MDIO bus lock.
1339 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
1341 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
1346 * __phy_modify_changed() - Convenience function for modifying a PHY register
1347 * @phydev: a pointer to a &struct phy_device
1348 * @regnum: register number
1349 * @mask: bit mask of bits to clear
1350 * @set: bit mask of bits to set
1352 * Unlocked helper function which allows a PHY register to be modified as
1353 * new register value = (old register value & ~mask) | set
1355 * Returns negative errno, 0 if there was no change, and 1 in case of change
1357 static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum,
1360 return __mdiobus_modify_changed(phydev->mdio.bus, phydev->mdio.addr,
1365 * phy_read_mmd - Convenience function for reading a register
1366 * from an MMD on a given PHY.
1368 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1371 * phy_read_mmd_poll_timeout - Periodically poll a PHY register until a
1372 * condition is met or a timeout occurs
1374 * @phydev: The phy_device struct
1375 * @devaddr: The MMD to read from
1376 * @regnum: The register on the MMD to read
1377 * @val: Variable to read the register into
1378 * @cond: Break condition (usually involving @val)
1379 * @sleep_us: Maximum time to sleep between reads in us (0
1380 * tight-loops). Should be less than ~20ms since usleep_range
1381 * is used (see Documentation/timers/timers-howto.rst).
1382 * @timeout_us: Timeout in us, 0 means never timeout
1383 * @sleep_before_read: if it is true, sleep @sleep_us before read.
1384 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either
1385 * case, the last read value at @args is stored in @val. Must not
1386 * be called from atomic context if sleep_us or timeout_us are used.
1388 #define phy_read_mmd_poll_timeout(phydev, devaddr, regnum, val, cond, \
1389 sleep_us, timeout_us, sleep_before_read) \
1392 __ret = read_poll_timeout(__val = phy_read_mmd, val, \
1393 __val < 0 || (cond), \
1394 sleep_us, timeout_us, sleep_before_read, \
1395 phydev, devaddr, regnum); \
1399 phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
1404 * __phy_read_mmd - Convenience function for reading a register
1405 * from an MMD on a given PHY.
1407 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
1410 * phy_write_mmd - Convenience function for writing a register
1411 * on an MMD on a given PHY.
1413 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1416 * __phy_write_mmd - Convenience function for writing a register
1417 * on an MMD on a given PHY.
1419 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
1421 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1423 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
1425 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1426 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
1428 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1430 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
1432 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1434 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
1438 * __phy_set_bits - Convenience function for setting bits in a PHY register
1439 * @phydev: the phy_device struct
1440 * @regnum: register number to write
1443 * The caller must have taken the MDIO bus lock.
1445 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1447 return __phy_modify(phydev, regnum, 0, val);
1451 * __phy_clear_bits - Convenience function for clearing bits in a PHY register
1452 * @phydev: the phy_device struct
1453 * @regnum: register number to write
1454 * @val: bits to clear
1456 * The caller must have taken the MDIO bus lock.
1458 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
1461 return __phy_modify(phydev, regnum, val, 0);
1465 * phy_set_bits - Convenience function for setting bits in a PHY register
1466 * @phydev: the phy_device struct
1467 * @regnum: register number to write
1470 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
1472 return phy_modify(phydev, regnum, 0, val);
1476 * phy_clear_bits - Convenience function for clearing bits in a PHY register
1477 * @phydev: the phy_device struct
1478 * @regnum: register number to write
1479 * @val: bits to clear
1481 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
1483 return phy_modify(phydev, regnum, val, 0);
1487 * __phy_set_bits_mmd - Convenience function for setting bits in a register
1489 * @phydev: the phy_device struct
1490 * @devad: the MMD containing register to modify
1491 * @regnum: register number to modify
1494 * The caller must have taken the MDIO bus lock.
1496 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad,
1497 u32 regnum, u16 val)
1499 return __phy_modify_mmd(phydev, devad, regnum, 0, val);
1503 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register
1505 * @phydev: the phy_device struct
1506 * @devad: the MMD containing register to modify
1507 * @regnum: register number to modify
1508 * @val: bits to clear
1510 * The caller must have taken the MDIO bus lock.
1512 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1513 u32 regnum, u16 val)
1515 return __phy_modify_mmd(phydev, devad, regnum, val, 0);
1519 * phy_set_bits_mmd - Convenience function for setting bits in a register
1521 * @phydev: the phy_device struct
1522 * @devad: the MMD containing register to modify
1523 * @regnum: register number to modify
1526 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad,
1527 u32 regnum, u16 val)
1529 return phy_modify_mmd(phydev, devad, regnum, 0, val);
1533 * phy_clear_bits_mmd - Convenience function for clearing bits in a register
1535 * @phydev: the phy_device struct
1536 * @devad: the MMD containing register to modify
1537 * @regnum: register number to modify
1538 * @val: bits to clear
1540 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad,
1541 u32 regnum, u16 val)
1543 return phy_modify_mmd(phydev, devad, regnum, val, 0);
1547 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
1548 * @phydev: the phy_device struct
1550 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
1553 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
1555 return phydev->irq != PHY_POLL && phydev->irq != PHY_MAC_INTERRUPT;
1559 * phy_polling_mode - Convenience function for testing whether polling is
1560 * used to detect PHY status changes
1561 * @phydev: the phy_device struct
1563 static inline bool phy_polling_mode(struct phy_device *phydev)
1565 if (phydev->state == PHY_CABLETEST)
1566 if (phydev->drv->flags & PHY_POLL_CABLE_TEST)
1569 return phydev->irq == PHY_POLL;
1573 * phy_has_hwtstamp - Tests whether a PHY time stamp configuration.
1574 * @phydev: the phy_device struct
1576 static inline bool phy_has_hwtstamp(struct phy_device *phydev)
1578 return phydev && phydev->mii_ts && phydev->mii_ts->hwtstamp;
1582 * phy_has_rxtstamp - Tests whether a PHY supports receive time stamping.
1583 * @phydev: the phy_device struct
1585 static inline bool phy_has_rxtstamp(struct phy_device *phydev)
1587 return phydev && phydev->mii_ts && phydev->mii_ts->rxtstamp;
1591 * phy_has_tsinfo - Tests whether a PHY reports time stamping and/or
1592 * PTP hardware clock capabilities.
1593 * @phydev: the phy_device struct
1595 static inline bool phy_has_tsinfo(struct phy_device *phydev)
1597 return phydev && phydev->mii_ts && phydev->mii_ts->ts_info;
1601 * phy_has_txtstamp - Tests whether a PHY supports transmit time stamping.
1602 * @phydev: the phy_device struct
1604 static inline bool phy_has_txtstamp(struct phy_device *phydev)
1606 return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp;
1609 static inline int phy_hwtstamp(struct phy_device *phydev,
1610 struct kernel_hwtstamp_config *cfg,
1611 struct netlink_ext_ack *extack)
1613 return phydev->mii_ts->hwtstamp(phydev->mii_ts, cfg, extack);
1616 static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb,
1619 return phydev->mii_ts->rxtstamp(phydev->mii_ts, skb, type);
1622 static inline int phy_ts_info(struct phy_device *phydev,
1623 struct kernel_ethtool_ts_info *tsinfo)
1625 return phydev->mii_ts->ts_info(phydev->mii_ts, tsinfo);
1628 static inline void phy_txtstamp(struct phy_device *phydev, struct sk_buff *skb,
1631 phydev->mii_ts->txtstamp(phydev->mii_ts, skb, type);
1635 * phy_is_default_hwtstamp - Is the PHY hwtstamp the default timestamp
1636 * @phydev: Pointer to phy_device
1638 * This is used to get default timestamping device taking into account
1639 * the new API choice, which is selecting the timestamping from MAC by
1640 * default if the phydev does not have default_timestamp flag enabled.
1642 * Return: True if phy is the default hw timestamp, false otherwise.
1644 static inline bool phy_is_default_hwtstamp(struct phy_device *phydev)
1646 return phy_has_hwtstamp(phydev) && phydev->default_timestamp;
1650 * phy_is_internal - Convenience function for testing if a PHY is internal
1651 * @phydev: the phy_device struct
1653 static inline bool phy_is_internal(struct phy_device *phydev)
1655 return phydev->is_internal;
1659 * phy_on_sfp - Convenience function for testing if a PHY is on an SFP module
1660 * @phydev: the phy_device struct
1662 static inline bool phy_on_sfp(struct phy_device *phydev)
1664 return phydev->is_on_sfp_module;
1668 * phy_interface_mode_is_rgmii - Convenience function for testing if a
1669 * PHY interface mode is RGMII (all variants)
1670 * @mode: the &phy_interface_t enum
1672 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
1674 return mode >= PHY_INTERFACE_MODE_RGMII &&
1675 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
1679 * phy_interface_mode_is_8023z() - does the PHY interface mode use 802.3z
1681 * @mode: one of &enum phy_interface_t
1683 * Returns true if the PHY interface mode uses the 16-bit negotiation
1684 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding)
1686 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode)
1688 return mode == PHY_INTERFACE_MODE_1000BASEX ||
1689 mode == PHY_INTERFACE_MODE_2500BASEX;
1693 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
1694 * is RGMII (all variants)
1695 * @phydev: the phy_device struct
1697 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
1699 return phy_interface_mode_is_rgmii(phydev->interface);
1703 * phy_is_pseudo_fixed_link - Convenience function for testing if this
1704 * PHY is the CPU port facing side of an Ethernet switch, or similar.
1705 * @phydev: the phy_device struct
1707 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
1709 return phydev->is_pseudo_fixed_link;
1712 int phy_save_page(struct phy_device *phydev);
1713 int phy_select_page(struct phy_device *phydev, int page);
1714 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret);
1715 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum);
1716 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val);
1717 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum,
1719 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum,
1722 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
1724 struct phy_c45_device_ids *c45_ids);
1725 #if IS_ENABLED(CONFIG_PHYLIB)
1726 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
1727 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
1728 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);
1729 struct phy_device *device_phy_find_device(struct device *dev);
1730 struct fwnode_handle *fwnode_get_phy_node(const struct fwnode_handle *fwnode);
1731 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
1732 int phy_device_register(struct phy_device *phy);
1733 void phy_device_free(struct phy_device *phydev);
1735 static inline int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
1740 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
1746 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode)
1751 static inline struct phy_device *device_phy_find_device(struct device *dev)
1757 struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode)
1763 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
1768 static inline int phy_device_register(struct phy_device *phy)
1773 static inline void phy_device_free(struct phy_device *phydev) { }
1774 #endif /* CONFIG_PHYLIB */
1775 void phy_device_remove(struct phy_device *phydev);
1776 int phy_get_c45_ids(struct phy_device *phydev);
1777 int phy_init_hw(struct phy_device *phydev);
1778 int phy_suspend(struct phy_device *phydev);
1779 int phy_resume(struct phy_device *phydev);
1780 int __phy_resume(struct phy_device *phydev);
1781 int phy_loopback(struct phy_device *phydev, bool enable);
1782 int phy_sfp_connect_phy(void *upstream, struct phy_device *phy);
1783 void phy_sfp_disconnect_phy(void *upstream, struct phy_device *phy);
1784 void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
1785 void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
1786 int phy_sfp_probe(struct phy_device *phydev,
1787 const struct sfp_upstream_ops *ops);
1788 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
1789 phy_interface_t interface);
1790 struct phy_device *phy_find_first(struct mii_bus *bus);
1791 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
1792 u32 flags, phy_interface_t interface);
1793 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
1794 void (*handler)(struct net_device *),
1795 phy_interface_t interface);
1796 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
1797 void (*handler)(struct net_device *),
1798 phy_interface_t interface);
1799 void phy_disconnect(struct phy_device *phydev);
1800 void phy_detach(struct phy_device *phydev);
1801 void phy_start(struct phy_device *phydev);
1802 void phy_stop(struct phy_device *phydev);
1803 int phy_config_aneg(struct phy_device *phydev);
1804 int _phy_start_aneg(struct phy_device *phydev);
1805 int phy_start_aneg(struct phy_device *phydev);
1806 int phy_aneg_done(struct phy_device *phydev);
1807 int phy_speed_down(struct phy_device *phydev, bool sync);
1808 int phy_speed_up(struct phy_device *phydev);
1809 bool phy_check_valid(int speed, int duplex, unsigned long *features);
1811 int phy_restart_aneg(struct phy_device *phydev);
1812 int phy_reset_after_clk_enable(struct phy_device *phydev);
1814 #if IS_ENABLED(CONFIG_PHYLIB)
1815 int phy_start_cable_test(struct phy_device *phydev,
1816 struct netlink_ext_ack *extack);
1817 int phy_start_cable_test_tdr(struct phy_device *phydev,
1818 struct netlink_ext_ack *extack,
1819 const struct phy_tdr_config *config);
1822 int phy_start_cable_test(struct phy_device *phydev,
1823 struct netlink_ext_ack *extack)
1825 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1829 int phy_start_cable_test_tdr(struct phy_device *phydev,
1830 struct netlink_ext_ack *extack,
1831 const struct phy_tdr_config *config)
1833 NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
1838 static inline void phy_device_reset(struct phy_device *phydev, int value)
1840 mdio_device_reset(&phydev->mdio, value);
1843 #define phydev_err(_phydev, format, args...) \
1844 dev_err(&_phydev->mdio.dev, format, ##args)
1846 #define phydev_err_probe(_phydev, err, format, args...) \
1847 dev_err_probe(&_phydev->mdio.dev, err, format, ##args)
1849 #define phydev_info(_phydev, format, args...) \
1850 dev_info(&_phydev->mdio.dev, format, ##args)
1852 #define phydev_warn(_phydev, format, args...) \
1853 dev_warn(&_phydev->mdio.dev, format, ##args)
1855 #define phydev_dbg(_phydev, format, args...) \
1856 dev_dbg(&_phydev->mdio.dev, format, ##args)
1858 static inline const char *phydev_name(const struct phy_device *phydev)
1860 return dev_name(&phydev->mdio.dev);
1863 static inline void phy_lock_mdio_bus(struct phy_device *phydev)
1865 mutex_lock(&phydev->mdio.bus->mdio_lock);
1868 static inline void phy_unlock_mdio_bus(struct phy_device *phydev)
1870 mutex_unlock(&phydev->mdio.bus->mdio_lock);
1873 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
1875 char *phy_attached_info_irq(struct phy_device *phydev)
1877 void phy_attached_info(struct phy_device *phydev);
1880 int genphy_read_abilities(struct phy_device *phydev);
1881 int genphy_setup_forced(struct phy_device *phydev);
1882 int genphy_restart_aneg(struct phy_device *phydev);
1883 int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1884 int genphy_config_eee_advert(struct phy_device *phydev);
1885 int __genphy_config_aneg(struct phy_device *phydev, bool changed);
1886 int genphy_aneg_done(struct phy_device *phydev);
1887 int genphy_update_link(struct phy_device *phydev);
1888 int genphy_read_lpa(struct phy_device *phydev);
1889 int genphy_read_status_fixed(struct phy_device *phydev);
1890 int genphy_read_status(struct phy_device *phydev);
1891 int genphy_read_master_slave(struct phy_device *phydev);
1892 int genphy_suspend(struct phy_device *phydev);
1893 int genphy_resume(struct phy_device *phydev);
1894 int genphy_loopback(struct phy_device *phydev, bool enable);
1895 int genphy_soft_reset(struct phy_device *phydev);
1896 irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev);
1898 static inline int genphy_config_aneg(struct phy_device *phydev)
1900 return __genphy_config_aneg(phydev, false);
1903 static inline int genphy_no_config_intr(struct phy_device *phydev)
1907 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
1909 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
1910 u16 regnum, u16 val);
1913 int genphy_c37_config_aneg(struct phy_device *phydev);
1914 int genphy_c37_read_status(struct phy_device *phydev, bool *changed);
1917 int genphy_c45_restart_aneg(struct phy_device *phydev);
1918 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1919 int genphy_c45_aneg_done(struct phy_device *phydev);
1920 int genphy_c45_read_link(struct phy_device *phydev);
1921 int genphy_c45_read_lpa(struct phy_device *phydev);
1922 int genphy_c45_read_pma(struct phy_device *phydev);
1923 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
1924 int genphy_c45_pma_baset1_setup_master_slave(struct phy_device *phydev);
1925 int genphy_c45_an_config_aneg(struct phy_device *phydev);
1926 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
1927 int genphy_c45_read_mdix(struct phy_device *phydev);
1928 int genphy_c45_pma_read_abilities(struct phy_device *phydev);
1929 int genphy_c45_pma_read_ext_abilities(struct phy_device *phydev);
1930 int genphy_c45_pma_baset1_read_abilities(struct phy_device *phydev);
1931 int genphy_c45_read_eee_abilities(struct phy_device *phydev);
1932 int genphy_c45_pma_baset1_read_master_slave(struct phy_device *phydev);
1933 int genphy_c45_read_status(struct phy_device *phydev);
1934 int genphy_c45_baset1_read_status(struct phy_device *phydev);
1935 int genphy_c45_config_aneg(struct phy_device *phydev);
1936 int genphy_c45_loopback(struct phy_device *phydev, bool enable);
1937 int genphy_c45_pma_resume(struct phy_device *phydev);
1938 int genphy_c45_pma_suspend(struct phy_device *phydev);
1939 int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable);
1940 int genphy_c45_plca_get_cfg(struct phy_device *phydev,
1941 struct phy_plca_cfg *plca_cfg);
1942 int genphy_c45_plca_set_cfg(struct phy_device *phydev,
1943 const struct phy_plca_cfg *plca_cfg);
1944 int genphy_c45_plca_get_status(struct phy_device *phydev,
1945 struct phy_plca_status *plca_st);
1946 int genphy_c45_eee_is_active(struct phy_device *phydev, unsigned long *adv,
1947 unsigned long *lp, bool *is_enabled);
1948 int genphy_c45_ethtool_get_eee(struct phy_device *phydev,
1949 struct ethtool_keee *data);
1950 int genphy_c45_ethtool_set_eee(struct phy_device *phydev,
1951 struct ethtool_keee *data);
1952 int genphy_c45_write_eee_adv(struct phy_device *phydev, unsigned long *adv);
1953 int genphy_c45_an_config_eee_aneg(struct phy_device *phydev);
1954 int genphy_c45_read_eee_adv(struct phy_device *phydev, unsigned long *adv);
1956 /* Generic C45 PHY driver */
1957 extern struct phy_driver genphy_c45_driver;
1959 /* The gen10g_* functions are the old Clause 45 stub */
1960 int gen10g_config_aneg(struct phy_device *phydev);
1962 static inline int phy_read_status(struct phy_device *phydev)
1967 if (phydev->drv->read_status)
1968 return phydev->drv->read_status(phydev);
1970 return genphy_read_status(phydev);
1973 void phy_driver_unregister(struct phy_driver *drv);
1974 void phy_drivers_unregister(struct phy_driver *drv, int n);
1975 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
1976 int phy_drivers_register(struct phy_driver *new_driver, int n,
1977 struct module *owner);
1978 void phy_error(struct phy_device *phydev);
1979 void phy_state_machine(struct work_struct *work);
1980 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
1981 void phy_trigger_machine(struct phy_device *phydev);
1982 void phy_mac_interrupt(struct phy_device *phydev);
1983 void phy_start_machine(struct phy_device *phydev);
1984 void phy_stop_machine(struct phy_device *phydev);
1985 void phy_ethtool_ksettings_get(struct phy_device *phydev,
1986 struct ethtool_link_ksettings *cmd);
1987 int phy_ethtool_ksettings_set(struct phy_device *phydev,
1988 const struct ethtool_link_ksettings *cmd);
1989 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
1990 int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
1991 int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
1992 int phy_disable_interrupts(struct phy_device *phydev);
1993 void phy_request_interrupt(struct phy_device *phydev);
1994 void phy_free_interrupt(struct phy_device *phydev);
1995 void phy_print_status(struct phy_device *phydev);
1996 int phy_get_rate_matching(struct phy_device *phydev,
1997 phy_interface_t iface);
1998 void phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
1999 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
2000 void phy_advertise_supported(struct phy_device *phydev);
2001 void phy_advertise_eee_all(struct phy_device *phydev);
2002 void phy_support_sym_pause(struct phy_device *phydev);
2003 void phy_support_asym_pause(struct phy_device *phydev);
2004 void phy_support_eee(struct phy_device *phydev);
2005 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
2007 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
2008 bool phy_validate_pause(struct phy_device *phydev,
2009 struct ethtool_pauseparam *pp);
2010 void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
2012 s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
2013 const int *delay_values, int size, bool is_rx);
2015 void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
2016 bool *tx_pause, bool *rx_pause);
2018 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
2019 int (*run)(struct phy_device *));
2020 int phy_register_fixup_for_id(const char *bus_id,
2021 int (*run)(struct phy_device *));
2022 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
2023 int (*run)(struct phy_device *));
2025 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
2026 int phy_unregister_fixup_for_id(const char *bus_id);
2027 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
2029 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
2030 int phy_get_eee_err(struct phy_device *phydev);
2031 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_keee *data);
2032 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_keee *data);
2033 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
2034 void phy_ethtool_get_wol(struct phy_device *phydev,
2035 struct ethtool_wolinfo *wol);
2036 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
2037 struct ethtool_link_ksettings *cmd);
2038 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
2039 const struct ethtool_link_ksettings *cmd);
2040 int phy_ethtool_nway_reset(struct net_device *ndev);
2041 int phy_package_join(struct phy_device *phydev, int base_addr, size_t priv_size);
2042 int of_phy_package_join(struct phy_device *phydev, size_t priv_size);
2043 void phy_package_leave(struct phy_device *phydev);
2044 int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
2045 int base_addr, size_t priv_size);
2046 int devm_of_phy_package_join(struct device *dev, struct phy_device *phydev,
2049 int __init mdio_bus_init(void);
2050 void mdio_bus_exit(void);
2052 int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
2053 int phy_ethtool_get_sset_count(struct phy_device *phydev);
2054 int phy_ethtool_get_stats(struct phy_device *phydev,
2055 struct ethtool_stats *stats, u64 *data);
2056 int phy_ethtool_get_plca_cfg(struct phy_device *phydev,
2057 struct phy_plca_cfg *plca_cfg);
2058 int phy_ethtool_set_plca_cfg(struct phy_device *phydev,
2059 const struct phy_plca_cfg *plca_cfg,
2060 struct netlink_ext_ack *extack);
2061 int phy_ethtool_get_plca_status(struct phy_device *phydev,
2062 struct phy_plca_status *plca_st);
2064 int __phy_hwtstamp_get(struct phy_device *phydev,
2065 struct kernel_hwtstamp_config *config);
2066 int __phy_hwtstamp_set(struct phy_device *phydev,
2067 struct kernel_hwtstamp_config *config,
2068 struct netlink_ext_ack *extack);
2070 static inline int phy_package_address(struct phy_device *phydev,
2071 unsigned int addr_offset)
2073 struct phy_package_shared *shared = phydev->shared;
2074 u8 base_addr = shared->base_addr;
2076 if (addr_offset >= PHY_MAX_ADDR - base_addr)
2079 /* we know that addr will be in the range 0..31 and thus the
2080 * implicit cast to a signed int is not a problem.
2082 return base_addr + addr_offset;
2085 static inline int phy_package_read(struct phy_device *phydev,
2086 unsigned int addr_offset, u32 regnum)
2088 int addr = phy_package_address(phydev, addr_offset);
2093 return mdiobus_read(phydev->mdio.bus, addr, regnum);
2096 static inline int __phy_package_read(struct phy_device *phydev,
2097 unsigned int addr_offset, u32 regnum)
2099 int addr = phy_package_address(phydev, addr_offset);
2104 return __mdiobus_read(phydev->mdio.bus, addr, regnum);
2107 static inline int phy_package_write(struct phy_device *phydev,
2108 unsigned int addr_offset, u32 regnum,
2111 int addr = phy_package_address(phydev, addr_offset);
2116 return mdiobus_write(phydev->mdio.bus, addr, regnum, val);
2119 static inline int __phy_package_write(struct phy_device *phydev,
2120 unsigned int addr_offset, u32 regnum,
2123 int addr = phy_package_address(phydev, addr_offset);
2128 return __mdiobus_write(phydev->mdio.bus, addr, regnum, val);
2131 int __phy_package_read_mmd(struct phy_device *phydev,
2132 unsigned int addr_offset, int devad,
2135 int phy_package_read_mmd(struct phy_device *phydev,
2136 unsigned int addr_offset, int devad,
2139 int __phy_package_write_mmd(struct phy_device *phydev,
2140 unsigned int addr_offset, int devad,
2141 u32 regnum, u16 val);
2143 int phy_package_write_mmd(struct phy_device *phydev,
2144 unsigned int addr_offset, int devad,
2145 u32 regnum, u16 val);
2147 static inline bool __phy_package_set_once(struct phy_device *phydev,
2150 struct phy_package_shared *shared = phydev->shared;
2155 return !test_and_set_bit(b, &shared->flags);
2158 static inline bool phy_package_init_once(struct phy_device *phydev)
2160 return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
2163 static inline bool phy_package_probe_once(struct phy_device *phydev)
2165 return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
2168 extern const struct bus_type mdio_bus_type;
2170 struct mdio_board_info {
2172 char modalias[MDIO_NAME_SIZE];
2174 const void *platform_data;
2177 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
2178 int mdiobus_register_board_info(const struct mdio_board_info *info,
2181 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
2190 * phy_module_driver() - Helper macro for registering PHY drivers
2191 * @__phy_drivers: array of PHY drivers to register
2192 * @__count: Numbers of members in array
2194 * Helper macro for PHY drivers which do not do anything special in module
2195 * init/exit. Each module may only use this macro once, and calling it
2196 * replaces module_init() and module_exit().
2198 #define phy_module_driver(__phy_drivers, __count) \
2199 static int __init phy_module_init(void) \
2201 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
2203 module_init(phy_module_init); \
2204 static void __exit phy_module_exit(void) \
2206 phy_drivers_unregister(__phy_drivers, __count); \
2208 module_exit(phy_module_exit)
2210 #define module_phy_driver(__phy_drivers) \
2211 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
2213 bool phy_driver_is_genphy(struct phy_device *phydev);
2214 bool phy_driver_is_genphy_10g(struct phy_device *phydev);
2216 #endif /* __PHY_H */