1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Framework and drivers for configuring and reading different PHYs 4 * Based on code in sungem_phy.c and (long-removed) gianfar_phy.c 5 * 6 * Author: Andy Fleming 7 * 8 * Copyright (c) 2004 Freescale Semiconductor, Inc. 9 */ 10 11 #ifndef __PHY_H 12 #define __PHY_H 13 14 #include <linux/compiler.h> 15 #include <linux/spinlock.h> 16 #include <linux/ethtool.h> 17 #include <linux/linkmode.h> 18 #include <linux/mdio.h> 19 #include <linux/mii.h> 20 #include <linux/module.h> 21 #include <linux/timer.h> 22 #include <linux/workqueue.h> 23 #include <linux/mod_devicetable.h> 24 25 #include <linux/atomic.h> 26 27 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \ 28 SUPPORTED_TP | \ 29 SUPPORTED_MII) 30 31 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \ 32 SUPPORTED_10baseT_Full) 33 34 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \ 35 SUPPORTED_100baseT_Full) 36 37 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \ 38 SUPPORTED_1000baseT_Full) 39 40 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init; 41 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init; 42 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init; 43 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init; 44 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init; 45 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init; 46 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init; 47 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init; 48 49 #define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features) 50 #define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features) 51 #define PHY_GBIT_FEATURES ((unsigned long *)&phy_gbit_features) 52 #define PHY_GBIT_FIBRE_FEATURES ((unsigned long *)&phy_gbit_fibre_features) 53 #define PHY_GBIT_ALL_PORTS_FEATURES ((unsigned long *)&phy_gbit_all_ports_features) 54 #define PHY_10GBIT_FEATURES ((unsigned long *)&phy_10gbit_features) 55 #define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features) 56 #define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features) 57 58 extern const int phy_10_100_features_array[4]; 59 extern const int phy_basic_t1_features_array[2]; 60 extern const int phy_gbit_features_array[2]; 61 extern const int phy_10gbit_features_array[1]; 62 63 /* 64 * Set phydev->irq to PHY_POLL if interrupts are not supported, 65 * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if 66 * the attached driver handles the interrupt 67 */ 68 #define PHY_POLL -1 69 #define PHY_IGNORE_INTERRUPT -2 70 71 #define PHY_IS_INTERNAL 0x00000001 72 #define PHY_RST_AFTER_CLK_EN 0x00000002 73 #define MDIO_DEVICE_IS_PHY 0x80000000 74 75 /* Interface Mode definitions */ 76 typedef enum { 77 PHY_INTERFACE_MODE_NA, 78 PHY_INTERFACE_MODE_INTERNAL, 79 PHY_INTERFACE_MODE_MII, 80 PHY_INTERFACE_MODE_GMII, 81 PHY_INTERFACE_MODE_SGMII, 82 PHY_INTERFACE_MODE_TBI, 83 PHY_INTERFACE_MODE_REVMII, 84 PHY_INTERFACE_MODE_RMII, 85 PHY_INTERFACE_MODE_RGMII, 86 PHY_INTERFACE_MODE_RGMII_ID, 87 PHY_INTERFACE_MODE_RGMII_RXID, 88 PHY_INTERFACE_MODE_RGMII_TXID, 89 PHY_INTERFACE_MODE_RTBI, 90 PHY_INTERFACE_MODE_SMII, 91 PHY_INTERFACE_MODE_XGMII, 92 PHY_INTERFACE_MODE_MOCA, 93 PHY_INTERFACE_MODE_QSGMII, 94 PHY_INTERFACE_MODE_TRGMII, 95 PHY_INTERFACE_MODE_1000BASEX, 96 PHY_INTERFACE_MODE_2500BASEX, 97 PHY_INTERFACE_MODE_RXAUI, 98 PHY_INTERFACE_MODE_XAUI, 99 /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */ 100 PHY_INTERFACE_MODE_10GKR, 101 PHY_INTERFACE_MODE_USXGMII, 102 PHY_INTERFACE_MODE_MAX, 103 } phy_interface_t; 104 105 /** 106 * phy_supported_speeds - return all speeds currently supported by a phy device 107 * @phy: The phy device to return supported speeds of. 108 * @speeds: buffer to store supported speeds in. 109 * @size: size of speeds buffer. 110 * 111 * Description: Returns the number of supported speeds, and fills 112 * the speeds buffer with the supported speeds. If speeds buffer is 113 * too small to contain all currently supported speeds, will return as 114 * many speeds as can fit. 115 */ 116 unsigned int phy_supported_speeds(struct phy_device *phy, 117 unsigned int *speeds, 118 unsigned int size); 119 120 /** 121 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode 122 * @interface: enum phy_interface_t value 123 * 124 * Description: maps 'enum phy_interface_t' defined in this file 125 * into the device tree binding of 'phy-mode', so that Ethernet 126 * device driver can get phy interface from device tree. 127 */ 128 static inline const char *phy_modes(phy_interface_t interface) 129 { 130 switch (interface) { 131 case PHY_INTERFACE_MODE_NA: 132 return ""; 133 case PHY_INTERFACE_MODE_INTERNAL: 134 return "internal"; 135 case PHY_INTERFACE_MODE_MII: 136 return "mii"; 137 case PHY_INTERFACE_MODE_GMII: 138 return "gmii"; 139 case PHY_INTERFACE_MODE_SGMII: 140 return "sgmii"; 141 case PHY_INTERFACE_MODE_TBI: 142 return "tbi"; 143 case PHY_INTERFACE_MODE_REVMII: 144 return "rev-mii"; 145 case PHY_INTERFACE_MODE_RMII: 146 return "rmii"; 147 case PHY_INTERFACE_MODE_RGMII: 148 return "rgmii"; 149 case PHY_INTERFACE_MODE_RGMII_ID: 150 return "rgmii-id"; 151 case PHY_INTERFACE_MODE_RGMII_RXID: 152 return "rgmii-rxid"; 153 case PHY_INTERFACE_MODE_RGMII_TXID: 154 return "rgmii-txid"; 155 case PHY_INTERFACE_MODE_RTBI: 156 return "rtbi"; 157 case PHY_INTERFACE_MODE_SMII: 158 return "smii"; 159 case PHY_INTERFACE_MODE_XGMII: 160 return "xgmii"; 161 case PHY_INTERFACE_MODE_MOCA: 162 return "moca"; 163 case PHY_INTERFACE_MODE_QSGMII: 164 return "qsgmii"; 165 case PHY_INTERFACE_MODE_TRGMII: 166 return "trgmii"; 167 case PHY_INTERFACE_MODE_1000BASEX: 168 return "1000base-x"; 169 case PHY_INTERFACE_MODE_2500BASEX: 170 return "2500base-x"; 171 case PHY_INTERFACE_MODE_RXAUI: 172 return "rxaui"; 173 case PHY_INTERFACE_MODE_XAUI: 174 return "xaui"; 175 case PHY_INTERFACE_MODE_10GKR: 176 return "10gbase-kr"; 177 case PHY_INTERFACE_MODE_USXGMII: 178 return "usxgmii"; 179 default: 180 return "unknown"; 181 } 182 } 183 184 185 #define PHY_INIT_TIMEOUT 100000 186 #define PHY_FORCE_TIMEOUT 10 187 188 #define PHY_MAX_ADDR 32 189 190 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ 191 #define PHY_ID_FMT "%s:%02x" 192 193 #define MII_BUS_ID_SIZE 61 194 195 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit 196 IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */ 197 #define MII_ADDR_C45 (1<<30) 198 #define MII_DEVADDR_C45_SHIFT 16 199 #define MII_REGADDR_C45_MASK GENMASK(15, 0) 200 201 struct device; 202 struct phylink; 203 struct sk_buff; 204 205 /* 206 * The Bus class for PHYs. Devices which provide access to 207 * PHYs should register using this structure 208 */ 209 struct mii_bus { 210 struct module *owner; 211 const char *name; 212 char id[MII_BUS_ID_SIZE]; 213 void *priv; 214 int (*read)(struct mii_bus *bus, int addr, int regnum); 215 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val); 216 int (*reset)(struct mii_bus *bus); 217 218 /* 219 * A lock to ensure that only one thing can read/write 220 * the MDIO bus at a time 221 */ 222 struct mutex mdio_lock; 223 224 struct device *parent; 225 enum { 226 MDIOBUS_ALLOCATED = 1, 227 MDIOBUS_REGISTERED, 228 MDIOBUS_UNREGISTERED, 229 MDIOBUS_RELEASED, 230 } state; 231 struct device dev; 232 233 /* list of all PHYs on bus */ 234 struct mdio_device *mdio_map[PHY_MAX_ADDR]; 235 236 /* PHY addresses to be ignored when probing */ 237 u32 phy_mask; 238 239 /* PHY addresses to ignore the TA/read failure */ 240 u32 phy_ignore_ta_mask; 241 242 /* 243 * An array of interrupts, each PHY's interrupt at the index 244 * matching its address 245 */ 246 int irq[PHY_MAX_ADDR]; 247 248 /* GPIO reset pulse width in microseconds */ 249 int reset_delay_us; 250 /* RESET GPIO descriptor pointer */ 251 struct gpio_desc *reset_gpiod; 252 }; 253 #define to_mii_bus(d) container_of(d, struct mii_bus, dev) 254 255 struct mii_bus *mdiobus_alloc_size(size_t); 256 static inline struct mii_bus *mdiobus_alloc(void) 257 { 258 return mdiobus_alloc_size(0); 259 } 260 261 int __mdiobus_register(struct mii_bus *bus, struct module *owner); 262 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE) 263 void mdiobus_unregister(struct mii_bus *bus); 264 void mdiobus_free(struct mii_bus *bus); 265 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv); 266 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev) 267 { 268 return devm_mdiobus_alloc_size(dev, 0); 269 } 270 271 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus); 272 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); 273 274 #define PHY_INTERRUPT_DISABLED false 275 #define PHY_INTERRUPT_ENABLED true 276 277 /* PHY state machine states: 278 * 279 * DOWN: PHY device and driver are not ready for anything. probe 280 * should be called if and only if the PHY is in this state, 281 * given that the PHY device exists. 282 * - PHY driver probe function will set the state to READY 283 * 284 * READY: PHY is ready to send and receive packets, but the 285 * controller is not. By default, PHYs which do not implement 286 * probe will be set to this state by phy_probe(). 287 * - start will set the state to UP 288 * 289 * UP: The PHY and attached device are ready to do work. 290 * Interrupts should be started here. 291 * - timer moves to NOLINK or RUNNING 292 * 293 * NOLINK: PHY is up, but not currently plugged in. 294 * - irq or timer will set RUNNING if link comes back 295 * - phy_stop moves to HALTED 296 * 297 * RUNNING: PHY is currently up, running, and possibly sending 298 * and/or receiving packets 299 * - irq or timer will set NOLINK if link goes down 300 * - phy_stop moves to HALTED 301 * 302 * HALTED: PHY is up, but no polling or interrupts are done. Or 303 * PHY is in an error state. 304 * - phy_start moves to UP 305 */ 306 enum phy_state { 307 PHY_DOWN = 0, 308 PHY_READY, 309 PHY_HALTED, 310 PHY_UP, 311 PHY_RUNNING, 312 PHY_NOLINK, 313 }; 314 315 /** 316 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers 317 * @devices_in_package: Bit vector of devices present. 318 * @device_ids: The device identifer for each present device. 319 */ 320 struct phy_c45_device_ids { 321 u32 devices_in_package; 322 u32 device_ids[8]; 323 }; 324 325 /* phy_device: An instance of a PHY 326 * 327 * drv: Pointer to the driver for this PHY instance 328 * phy_id: UID for this device found during discovery 329 * c45_ids: 802.3-c45 Device Identifers if is_c45. 330 * is_c45: Set to true if this phy uses clause 45 addressing. 331 * is_internal: Set to true if this phy is internal to a MAC. 332 * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc. 333 * is_gigabit_capable: Set to true if PHY supports 1000Mbps 334 * has_fixups: Set to true if this phy has fixups/quirks. 335 * suspended: Set to true if this phy has been suspended successfully. 336 * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. 337 * loopback_enabled: Set true if this phy has been loopbacked successfully. 338 * state: state of the PHY for management purposes 339 * dev_flags: Device-specific flags used by the PHY driver. 340 * irq: IRQ number of the PHY's interrupt (-1 if none) 341 * phy_timer: The timer for handling the state machine 342 * attached_dev: The attached enet driver's device instance ptr 343 * adjust_link: Callback for the enet controller to respond to 344 * changes in the link state. 345 * 346 * speed, duplex, pause, supported, advertising, lp_advertising, 347 * and autoneg are used like in mii_if_info 348 * 349 * interrupts currently only supports enabled or disabled, 350 * but could be changed in the future to support enabling 351 * and disabling specific interrupts 352 * 353 * Contains some infrastructure for polling and interrupt 354 * handling, as well as handling shifts in PHY hardware state 355 */ 356 struct phy_device { 357 struct mdio_device mdio; 358 359 /* Information about the PHY type */ 360 /* And management functions */ 361 struct phy_driver *drv; 362 363 u32 phy_id; 364 365 struct phy_c45_device_ids c45_ids; 366 unsigned is_c45:1; 367 unsigned is_internal:1; 368 unsigned is_pseudo_fixed_link:1; 369 unsigned is_gigabit_capable:1; 370 unsigned has_fixups:1; 371 unsigned suspended:1; 372 unsigned sysfs_links:1; 373 unsigned loopback_enabled:1; 374 375 unsigned autoneg:1; 376 /* The most recently read link state */ 377 unsigned link:1; 378 unsigned autoneg_complete:1; 379 380 /* Interrupts are enabled */ 381 unsigned interrupts:1; 382 383 enum phy_state state; 384 385 u32 dev_flags; 386 387 phy_interface_t interface; 388 389 /* 390 * forced speed & duplex (no autoneg) 391 * partner speed & duplex & pause (autoneg) 392 */ 393 int speed; 394 int duplex; 395 int pause; 396 int asym_pause; 397 398 /* Union of PHY and Attached devices' supported link modes */ 399 /* See ethtool.h for more info */ 400 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 401 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 402 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); 403 404 /* Energy efficient ethernet modes which should be prohibited */ 405 u32 eee_broken_modes; 406 407 #ifdef CONFIG_LED_TRIGGER_PHY 408 struct phy_led_trigger *phy_led_triggers; 409 unsigned int phy_num_led_triggers; 410 struct phy_led_trigger *last_triggered; 411 412 struct phy_led_trigger *led_link_trigger; 413 #endif 414 415 /* 416 * Interrupt number for this PHY 417 * -1 means no interrupt 418 */ 419 int irq; 420 421 /* private data pointer */ 422 /* For use by PHYs to maintain extra state */ 423 void *priv; 424 425 /* Interrupt and Polling infrastructure */ 426 struct delayed_work state_queue; 427 428 struct mutex lock; 429 430 struct phylink *phylink; 431 struct net_device *attached_dev; 432 433 u8 mdix; 434 u8 mdix_ctrl; 435 436 void (*phy_link_change)(struct phy_device *, bool up, bool do_carrier); 437 void (*adjust_link)(struct net_device *dev); 438 }; 439 #define to_phy_device(d) container_of(to_mdio_device(d), \ 440 struct phy_device, mdio) 441 442 /* struct phy_driver: Driver structure for a particular PHY type 443 * 444 * driver_data: static driver data 445 * phy_id: The result of reading the UID registers of this PHY 446 * type, and ANDing them with the phy_id_mask. This driver 447 * only works for PHYs with IDs which match this field 448 * name: The friendly name of this PHY type 449 * phy_id_mask: Defines the important bits of the phy_id 450 * features: A mandatory list of features (speed, duplex, etc) 451 * supported by this PHY 452 * flags: A bitfield defining certain other features this PHY 453 * supports (like interrupts) 454 * 455 * All functions are optional. If config_aneg or read_status 456 * are not implemented, the phy core uses the genphy versions. 457 * Note that none of these functions should be called from 458 * interrupt time. The goal is for the bus read/write functions 459 * to be able to block when the bus transaction is happening, 460 * and be freed up by an interrupt (The MPC85xx has this ability, 461 * though it is not currently supported in the driver). 462 */ 463 struct phy_driver { 464 struct mdio_driver_common mdiodrv; 465 u32 phy_id; 466 char *name; 467 u32 phy_id_mask; 468 const unsigned long * const features; 469 u32 flags; 470 const void *driver_data; 471 472 /* 473 * Called to issue a PHY software reset 474 */ 475 int (*soft_reset)(struct phy_device *phydev); 476 477 /* 478 * Called to initialize the PHY, 479 * including after a reset 480 */ 481 int (*config_init)(struct phy_device *phydev); 482 483 /* 484 * Called during discovery. Used to set 485 * up device-specific structures, if any 486 */ 487 int (*probe)(struct phy_device *phydev); 488 489 /* 490 * Probe the hardware to determine what abilities it has. 491 * Should only set phydev->supported. 492 */ 493 int (*get_features)(struct phy_device *phydev); 494 495 /* PHY Power Management */ 496 int (*suspend)(struct phy_device *phydev); 497 int (*resume)(struct phy_device *phydev); 498 499 /* 500 * Configures the advertisement and resets 501 * autonegotiation if phydev->autoneg is on, 502 * forces the speed to the current settings in phydev 503 * if phydev->autoneg is off 504 */ 505 int (*config_aneg)(struct phy_device *phydev); 506 507 /* Determines the auto negotiation result */ 508 int (*aneg_done)(struct phy_device *phydev); 509 510 /* Determines the negotiated speed and duplex */ 511 int (*read_status)(struct phy_device *phydev); 512 513 /* Clears any pending interrupts */ 514 int (*ack_interrupt)(struct phy_device *phydev); 515 516 /* Enables or disables interrupts */ 517 int (*config_intr)(struct phy_device *phydev); 518 519 /* 520 * Checks if the PHY generated an interrupt. 521 * For multi-PHY devices with shared PHY interrupt pin 522 */ 523 int (*did_interrupt)(struct phy_device *phydev); 524 525 /* Override default interrupt handling */ 526 int (*handle_interrupt)(struct phy_device *phydev); 527 528 /* Clears up any memory if needed */ 529 void (*remove)(struct phy_device *phydev); 530 531 /* Returns true if this is a suitable driver for the given 532 * phydev. If NULL, matching is based on phy_id and 533 * phy_id_mask. 534 */ 535 int (*match_phy_device)(struct phy_device *phydev); 536 537 /* Handles ethtool queries for hardware time stamping. */ 538 int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti); 539 540 /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */ 541 int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr); 542 543 /* 544 * Requests a Rx timestamp for 'skb'. If the skb is accepted, 545 * the phy driver promises to deliver it using netif_rx() as 546 * soon as a timestamp becomes available. One of the 547 * PTP_CLASS_ values is passed in 'type'. The function must 548 * return true if the skb is accepted for delivery. 549 */ 550 bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); 551 552 /* 553 * Requests a Tx timestamp for 'skb'. The phy driver promises 554 * to deliver it using skb_complete_tx_timestamp() as soon as a 555 * timestamp becomes available. One of the PTP_CLASS_ values 556 * is passed in 'type'. 557 */ 558 void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); 559 560 /* Some devices (e.g. qnap TS-119P II) require PHY register changes to 561 * enable Wake on LAN, so set_wol is provided to be called in the 562 * ethernet driver's set_wol function. */ 563 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); 564 565 /* See set_wol, but for checking whether Wake on LAN is enabled. */ 566 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); 567 568 /* 569 * Called to inform a PHY device driver when the core is about to 570 * change the link state. This callback is supposed to be used as 571 * fixup hook for drivers that need to take action when the link 572 * state changes. Drivers are by no means allowed to mess with the 573 * PHY device structure in their implementations. 574 */ 575 void (*link_change_notify)(struct phy_device *dev); 576 577 /* 578 * Phy specific driver override for reading a MMD register. 579 * This function is optional for PHY specific drivers. When 580 * not provided, the default MMD read function will be used 581 * by phy_read_mmd(), which will use either a direct read for 582 * Clause 45 PHYs or an indirect read for Clause 22 PHYs. 583 * devnum is the MMD device number within the PHY device, 584 * regnum is the register within the selected MMD device. 585 */ 586 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum); 587 588 /* 589 * Phy specific driver override for writing a MMD register. 590 * This function is optional for PHY specific drivers. When 591 * not provided, the default MMD write function will be used 592 * by phy_write_mmd(), which will use either a direct write for 593 * Clause 45 PHYs, or an indirect write for Clause 22 PHYs. 594 * devnum is the MMD device number within the PHY device, 595 * regnum is the register within the selected MMD device. 596 * val is the value to be written. 597 */ 598 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum, 599 u16 val); 600 601 int (*read_page)(struct phy_device *dev); 602 int (*write_page)(struct phy_device *dev, int page); 603 604 /* Get the size and type of the eeprom contained within a plug-in 605 * module */ 606 int (*module_info)(struct phy_device *dev, 607 struct ethtool_modinfo *modinfo); 608 609 /* Get the eeprom information from the plug-in module */ 610 int (*module_eeprom)(struct phy_device *dev, 611 struct ethtool_eeprom *ee, u8 *data); 612 613 /* Get statistics from the phy using ethtool */ 614 int (*get_sset_count)(struct phy_device *dev); 615 void (*get_strings)(struct phy_device *dev, u8 *data); 616 void (*get_stats)(struct phy_device *dev, 617 struct ethtool_stats *stats, u64 *data); 618 619 /* Get and Set PHY tunables */ 620 int (*get_tunable)(struct phy_device *dev, 621 struct ethtool_tunable *tuna, void *data); 622 int (*set_tunable)(struct phy_device *dev, 623 struct ethtool_tunable *tuna, 624 const void *data); 625 int (*set_loopback)(struct phy_device *dev, bool enable); 626 }; 627 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \ 628 struct phy_driver, mdiodrv) 629 630 #define PHY_ANY_ID "MATCH ANY PHY" 631 #define PHY_ANY_UID 0xffffffff 632 633 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0) 634 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4) 635 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10) 636 637 /* A Structure for boards to register fixups with the PHY Lib */ 638 struct phy_fixup { 639 struct list_head list; 640 char bus_id[MII_BUS_ID_SIZE + 3]; 641 u32 phy_uid; 642 u32 phy_uid_mask; 643 int (*run)(struct phy_device *phydev); 644 }; 645 646 const char *phy_speed_to_str(int speed); 647 const char *phy_duplex_to_str(unsigned int duplex); 648 649 /* A structure for mapping a particular speed and duplex 650 * combination to a particular SUPPORTED and ADVERTISED value 651 */ 652 struct phy_setting { 653 u32 speed; 654 u8 duplex; 655 u8 bit; 656 }; 657 658 const struct phy_setting * 659 phy_lookup_setting(int speed, int duplex, const unsigned long *mask, 660 bool exact); 661 size_t phy_speeds(unsigned int *speeds, size_t size, 662 unsigned long *mask); 663 void of_set_phy_supported(struct phy_device *phydev); 664 void of_set_phy_eee_broken(struct phy_device *phydev); 665 666 /** 667 * phy_is_started - Convenience function to check whether PHY is started 668 * @phydev: The phy_device struct 669 */ 670 static inline bool phy_is_started(struct phy_device *phydev) 671 { 672 return phydev->state >= PHY_UP; 673 } 674 675 void phy_resolve_aneg_linkmode(struct phy_device *phydev); 676 677 /** 678 * phy_read - Convenience function for reading a given PHY register 679 * @phydev: the phy_device struct 680 * @regnum: register number to read 681 * 682 * NOTE: MUST NOT be called from interrupt context, 683 * because the bus read/write functions may wait for an interrupt 684 * to conclude the operation. 685 */ 686 static inline int phy_read(struct phy_device *phydev, u32 regnum) 687 { 688 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); 689 } 690 691 /** 692 * __phy_read - convenience function for reading a given PHY register 693 * @phydev: the phy_device struct 694 * @regnum: register number to read 695 * 696 * The caller must have taken the MDIO bus lock. 697 */ 698 static inline int __phy_read(struct phy_device *phydev, u32 regnum) 699 { 700 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); 701 } 702 703 /** 704 * phy_write - Convenience function for writing a given PHY register 705 * @phydev: the phy_device struct 706 * @regnum: register number to write 707 * @val: value to write to @regnum 708 * 709 * NOTE: MUST NOT be called from interrupt context, 710 * because the bus read/write functions may wait for an interrupt 711 * to conclude the operation. 712 */ 713 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val) 714 { 715 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val); 716 } 717 718 /** 719 * __phy_write - Convenience function for writing a given PHY register 720 * @phydev: the phy_device struct 721 * @regnum: register number to write 722 * @val: value to write to @regnum 723 * 724 * The caller must have taken the MDIO bus lock. 725 */ 726 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val) 727 { 728 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, 729 val); 730 } 731 732 /** 733 * phy_read_mmd - Convenience function for reading a register 734 * from an MMD on a given PHY. 735 * @phydev: The phy_device struct 736 * @devad: The MMD to read from 737 * @regnum: The register on the MMD to read 738 * 739 * Same rules as for phy_read(); 740 */ 741 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); 742 743 /** 744 * __phy_read_mmd - Convenience function for reading a register 745 * from an MMD on a given PHY. 746 * @phydev: The phy_device struct 747 * @devad: The MMD to read from 748 * @regnum: The register on the MMD to read 749 * 750 * Same rules as for __phy_read(); 751 */ 752 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); 753 754 /** 755 * phy_write_mmd - Convenience function for writing a register 756 * on an MMD on a given PHY. 757 * @phydev: The phy_device struct 758 * @devad: The MMD to write to 759 * @regnum: The register on the MMD to read 760 * @val: value to write to @regnum 761 * 762 * Same rules as for phy_write(); 763 */ 764 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); 765 766 /** 767 * __phy_write_mmd - Convenience function for writing a register 768 * on an MMD on a given PHY. 769 * @phydev: The phy_device struct 770 * @devad: The MMD to write to 771 * @regnum: The register on the MMD to read 772 * @val: value to write to @regnum 773 * 774 * Same rules as for __phy_write(); 775 */ 776 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); 777 778 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, 779 u16 set); 780 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, 781 u16 set); 782 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set); 783 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set); 784 785 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum, 786 u16 mask, u16 set); 787 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum, 788 u16 mask, u16 set); 789 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum, 790 u16 mask, u16 set); 791 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum, 792 u16 mask, u16 set); 793 794 /** 795 * __phy_set_bits - Convenience function for setting bits in a PHY register 796 * @phydev: the phy_device struct 797 * @regnum: register number to write 798 * @val: bits to set 799 * 800 * The caller must have taken the MDIO bus lock. 801 */ 802 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val) 803 { 804 return __phy_modify(phydev, regnum, 0, val); 805 } 806 807 /** 808 * __phy_clear_bits - Convenience function for clearing bits in a PHY register 809 * @phydev: the phy_device struct 810 * @regnum: register number to write 811 * @val: bits to clear 812 * 813 * The caller must have taken the MDIO bus lock. 814 */ 815 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum, 816 u16 val) 817 { 818 return __phy_modify(phydev, regnum, val, 0); 819 } 820 821 /** 822 * phy_set_bits - Convenience function for setting bits in a PHY register 823 * @phydev: the phy_device struct 824 * @regnum: register number to write 825 * @val: bits to set 826 */ 827 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val) 828 { 829 return phy_modify(phydev, regnum, 0, val); 830 } 831 832 /** 833 * phy_clear_bits - Convenience function for clearing bits in a PHY register 834 * @phydev: the phy_device struct 835 * @regnum: register number to write 836 * @val: bits to clear 837 */ 838 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val) 839 { 840 return phy_modify(phydev, regnum, val, 0); 841 } 842 843 /** 844 * __phy_set_bits_mmd - Convenience function for setting bits in a register 845 * on MMD 846 * @phydev: the phy_device struct 847 * @devad: the MMD containing register to modify 848 * @regnum: register number to modify 849 * @val: bits to set 850 * 851 * The caller must have taken the MDIO bus lock. 852 */ 853 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad, 854 u32 regnum, u16 val) 855 { 856 return __phy_modify_mmd(phydev, devad, regnum, 0, val); 857 } 858 859 /** 860 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register 861 * on MMD 862 * @phydev: the phy_device struct 863 * @devad: the MMD containing register to modify 864 * @regnum: register number to modify 865 * @val: bits to clear 866 * 867 * The caller must have taken the MDIO bus lock. 868 */ 869 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad, 870 u32 regnum, u16 val) 871 { 872 return __phy_modify_mmd(phydev, devad, regnum, val, 0); 873 } 874 875 /** 876 * phy_set_bits_mmd - Convenience function for setting bits in a register 877 * on MMD 878 * @phydev: the phy_device struct 879 * @devad: the MMD containing register to modify 880 * @regnum: register number to modify 881 * @val: bits to set 882 */ 883 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad, 884 u32 regnum, u16 val) 885 { 886 return phy_modify_mmd(phydev, devad, regnum, 0, val); 887 } 888 889 /** 890 * phy_clear_bits_mmd - Convenience function for clearing bits in a register 891 * on MMD 892 * @phydev: the phy_device struct 893 * @devad: the MMD containing register to modify 894 * @regnum: register number to modify 895 * @val: bits to clear 896 */ 897 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad, 898 u32 regnum, u16 val) 899 { 900 return phy_modify_mmd(phydev, devad, regnum, val, 0); 901 } 902 903 /** 904 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq 905 * @phydev: the phy_device struct 906 * 907 * NOTE: must be kept in sync with addition/removal of PHY_POLL and 908 * PHY_IGNORE_INTERRUPT 909 */ 910 static inline bool phy_interrupt_is_valid(struct phy_device *phydev) 911 { 912 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT; 913 } 914 915 /** 916 * phy_polling_mode - Convenience function for testing whether polling is 917 * used to detect PHY status changes 918 * @phydev: the phy_device struct 919 */ 920 static inline bool phy_polling_mode(struct phy_device *phydev) 921 { 922 return phydev->irq == PHY_POLL; 923 } 924 925 /** 926 * phy_is_internal - Convenience function for testing if a PHY is internal 927 * @phydev: the phy_device struct 928 */ 929 static inline bool phy_is_internal(struct phy_device *phydev) 930 { 931 return phydev->is_internal; 932 } 933 934 /** 935 * phy_interface_mode_is_rgmii - Convenience function for testing if a 936 * PHY interface mode is RGMII (all variants) 937 * @mode: the phy_interface_t enum 938 */ 939 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode) 940 { 941 return mode >= PHY_INTERFACE_MODE_RGMII && 942 mode <= PHY_INTERFACE_MODE_RGMII_TXID; 943 }; 944 945 /** 946 * phy_interface_mode_is_8023z() - does the phy interface mode use 802.3z 947 * negotiation 948 * @mode: one of &enum phy_interface_t 949 * 950 * Returns true if the phy interface mode uses the 16-bit negotiation 951 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding) 952 */ 953 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode) 954 { 955 return mode == PHY_INTERFACE_MODE_1000BASEX || 956 mode == PHY_INTERFACE_MODE_2500BASEX; 957 } 958 959 /** 960 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface 961 * is RGMII (all variants) 962 * @phydev: the phy_device struct 963 */ 964 static inline bool phy_interface_is_rgmii(struct phy_device *phydev) 965 { 966 return phy_interface_mode_is_rgmii(phydev->interface); 967 }; 968 969 /* 970 * phy_is_pseudo_fixed_link - Convenience function for testing if this 971 * PHY is the CPU port facing side of an Ethernet switch, or similar. 972 * @phydev: the phy_device struct 973 */ 974 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev) 975 { 976 return phydev->is_pseudo_fixed_link; 977 } 978 979 int phy_save_page(struct phy_device *phydev); 980 int phy_select_page(struct phy_device *phydev, int page); 981 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret); 982 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum); 983 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val); 984 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum, 985 u16 mask, u16 set); 986 987 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, 988 bool is_c45, 989 struct phy_c45_device_ids *c45_ids); 990 #if IS_ENABLED(CONFIG_PHYLIB) 991 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); 992 int phy_device_register(struct phy_device *phy); 993 void phy_device_free(struct phy_device *phydev); 994 #else 995 static inline 996 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45) 997 { 998 return NULL; 999 } 1000 1001 static inline int phy_device_register(struct phy_device *phy) 1002 { 1003 return 0; 1004 } 1005 1006 static inline void phy_device_free(struct phy_device *phydev) { } 1007 #endif /* CONFIG_PHYLIB */ 1008 void phy_device_remove(struct phy_device *phydev); 1009 int phy_init_hw(struct phy_device *phydev); 1010 int phy_suspend(struct phy_device *phydev); 1011 int phy_resume(struct phy_device *phydev); 1012 int __phy_resume(struct phy_device *phydev); 1013 int phy_loopback(struct phy_device *phydev, bool enable); 1014 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, 1015 phy_interface_t interface); 1016 struct phy_device *phy_find_first(struct mii_bus *bus); 1017 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, 1018 u32 flags, phy_interface_t interface); 1019 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, 1020 void (*handler)(struct net_device *), 1021 phy_interface_t interface); 1022 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id, 1023 void (*handler)(struct net_device *), 1024 phy_interface_t interface); 1025 void phy_disconnect(struct phy_device *phydev); 1026 void phy_detach(struct phy_device *phydev); 1027 void phy_start(struct phy_device *phydev); 1028 void phy_stop(struct phy_device *phydev); 1029 int phy_start_aneg(struct phy_device *phydev); 1030 int phy_aneg_done(struct phy_device *phydev); 1031 int phy_speed_down(struct phy_device *phydev, bool sync); 1032 int phy_speed_up(struct phy_device *phydev); 1033 1034 int phy_restart_aneg(struct phy_device *phydev); 1035 int phy_reset_after_clk_enable(struct phy_device *phydev); 1036 1037 static inline void phy_device_reset(struct phy_device *phydev, int value) 1038 { 1039 mdio_device_reset(&phydev->mdio, value); 1040 } 1041 1042 #define phydev_err(_phydev, format, args...) \ 1043 dev_err(&_phydev->mdio.dev, format, ##args) 1044 1045 #define phydev_info(_phydev, format, args...) \ 1046 dev_info(&_phydev->mdio.dev, format, ##args) 1047 1048 #define phydev_warn(_phydev, format, args...) \ 1049 dev_warn(&_phydev->mdio.dev, format, ##args) 1050 1051 #define phydev_dbg(_phydev, format, args...) \ 1052 dev_dbg(&_phydev->mdio.dev, format, ##args) 1053 1054 static inline const char *phydev_name(const struct phy_device *phydev) 1055 { 1056 return dev_name(&phydev->mdio.dev); 1057 } 1058 1059 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...) 1060 __printf(2, 3); 1061 void phy_attached_info(struct phy_device *phydev); 1062 1063 /* Clause 22 PHY */ 1064 int genphy_config_init(struct phy_device *phydev); 1065 int genphy_read_abilities(struct phy_device *phydev); 1066 int genphy_setup_forced(struct phy_device *phydev); 1067 int genphy_restart_aneg(struct phy_device *phydev); 1068 int genphy_config_eee_advert(struct phy_device *phydev); 1069 int genphy_config_aneg(struct phy_device *phydev); 1070 int genphy_aneg_done(struct phy_device *phydev); 1071 int genphy_update_link(struct phy_device *phydev); 1072 int genphy_read_status(struct phy_device *phydev); 1073 int genphy_suspend(struct phy_device *phydev); 1074 int genphy_resume(struct phy_device *phydev); 1075 int genphy_loopback(struct phy_device *phydev, bool enable); 1076 int genphy_soft_reset(struct phy_device *phydev); 1077 static inline int genphy_no_soft_reset(struct phy_device *phydev) 1078 { 1079 return 0; 1080 } 1081 static inline int genphy_no_ack_interrupt(struct phy_device *phydev) 1082 { 1083 return 0; 1084 } 1085 static inline int genphy_no_config_intr(struct phy_device *phydev) 1086 { 1087 return 0; 1088 } 1089 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad, 1090 u16 regnum); 1091 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum, 1092 u16 regnum, u16 val); 1093 1094 /* Clause 45 PHY */ 1095 int genphy_c45_restart_aneg(struct phy_device *phydev); 1096 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart); 1097 int genphy_c45_aneg_done(struct phy_device *phydev); 1098 int genphy_c45_read_link(struct phy_device *phydev); 1099 int genphy_c45_read_lpa(struct phy_device *phydev); 1100 int genphy_c45_read_pma(struct phy_device *phydev); 1101 int genphy_c45_pma_setup_forced(struct phy_device *phydev); 1102 int genphy_c45_an_config_aneg(struct phy_device *phydev); 1103 int genphy_c45_an_disable_aneg(struct phy_device *phydev); 1104 int genphy_c45_read_mdix(struct phy_device *phydev); 1105 int genphy_c45_pma_read_abilities(struct phy_device *phydev); 1106 int genphy_c45_read_status(struct phy_device *phydev); 1107 1108 /* The gen10g_* functions are the old Clause 45 stub */ 1109 int gen10g_config_aneg(struct phy_device *phydev); 1110 1111 static inline int phy_read_status(struct phy_device *phydev) 1112 { 1113 if (!phydev->drv) 1114 return -EIO; 1115 1116 if (phydev->drv->read_status) 1117 return phydev->drv->read_status(phydev); 1118 else 1119 return genphy_read_status(phydev); 1120 } 1121 1122 void phy_driver_unregister(struct phy_driver *drv); 1123 void phy_drivers_unregister(struct phy_driver *drv, int n); 1124 int phy_driver_register(struct phy_driver *new_driver, struct module *owner); 1125 int phy_drivers_register(struct phy_driver *new_driver, int n, 1126 struct module *owner); 1127 void phy_state_machine(struct work_struct *work); 1128 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies); 1129 void phy_mac_interrupt(struct phy_device *phydev); 1130 void phy_start_machine(struct phy_device *phydev); 1131 void phy_stop_machine(struct phy_device *phydev); 1132 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); 1133 void phy_ethtool_ksettings_get(struct phy_device *phydev, 1134 struct ethtool_link_ksettings *cmd); 1135 int phy_ethtool_ksettings_set(struct phy_device *phydev, 1136 const struct ethtool_link_ksettings *cmd); 1137 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); 1138 void phy_request_interrupt(struct phy_device *phydev); 1139 void phy_free_interrupt(struct phy_device *phydev); 1140 void phy_print_status(struct phy_device *phydev); 1141 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); 1142 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode); 1143 void phy_advertise_supported(struct phy_device *phydev); 1144 void phy_support_sym_pause(struct phy_device *phydev); 1145 void phy_support_asym_pause(struct phy_device *phydev); 1146 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx, 1147 bool autoneg); 1148 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx); 1149 bool phy_validate_pause(struct phy_device *phydev, 1150 struct ethtool_pauseparam *pp); 1151 1152 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, 1153 int (*run)(struct phy_device *)); 1154 int phy_register_fixup_for_id(const char *bus_id, 1155 int (*run)(struct phy_device *)); 1156 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, 1157 int (*run)(struct phy_device *)); 1158 1159 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask); 1160 int phy_unregister_fixup_for_id(const char *bus_id); 1161 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask); 1162 1163 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); 1164 int phy_get_eee_err(struct phy_device *phydev); 1165 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); 1166 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); 1167 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); 1168 void phy_ethtool_get_wol(struct phy_device *phydev, 1169 struct ethtool_wolinfo *wol); 1170 int phy_ethtool_get_link_ksettings(struct net_device *ndev, 1171 struct ethtool_link_ksettings *cmd); 1172 int phy_ethtool_set_link_ksettings(struct net_device *ndev, 1173 const struct ethtool_link_ksettings *cmd); 1174 int phy_ethtool_nway_reset(struct net_device *ndev); 1175 1176 #if IS_ENABLED(CONFIG_PHYLIB) 1177 int __init mdio_bus_init(void); 1178 void mdio_bus_exit(void); 1179 #endif 1180 1181 /* Inline function for use within net/core/ethtool.c (built-in) */ 1182 static inline int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data) 1183 { 1184 if (!phydev->drv) 1185 return -EIO; 1186 1187 mutex_lock(&phydev->lock); 1188 phydev->drv->get_strings(phydev, data); 1189 mutex_unlock(&phydev->lock); 1190 1191 return 0; 1192 } 1193 1194 static inline int phy_ethtool_get_sset_count(struct phy_device *phydev) 1195 { 1196 int ret; 1197 1198 if (!phydev->drv) 1199 return -EIO; 1200 1201 if (phydev->drv->get_sset_count && 1202 phydev->drv->get_strings && 1203 phydev->drv->get_stats) { 1204 mutex_lock(&phydev->lock); 1205 ret = phydev->drv->get_sset_count(phydev); 1206 mutex_unlock(&phydev->lock); 1207 1208 return ret; 1209 } 1210 1211 return -EOPNOTSUPP; 1212 } 1213 1214 static inline int phy_ethtool_get_stats(struct phy_device *phydev, 1215 struct ethtool_stats *stats, u64 *data) 1216 { 1217 if (!phydev->drv) 1218 return -EIO; 1219 1220 mutex_lock(&phydev->lock); 1221 phydev->drv->get_stats(phydev, stats, data); 1222 mutex_unlock(&phydev->lock); 1223 1224 return 0; 1225 } 1226 1227 extern struct bus_type mdio_bus_type; 1228 1229 struct mdio_board_info { 1230 const char *bus_id; 1231 char modalias[MDIO_NAME_SIZE]; 1232 int mdio_addr; 1233 const void *platform_data; 1234 }; 1235 1236 #if IS_ENABLED(CONFIG_MDIO_DEVICE) 1237 int mdiobus_register_board_info(const struct mdio_board_info *info, 1238 unsigned int n); 1239 #else 1240 static inline int mdiobus_register_board_info(const struct mdio_board_info *i, 1241 unsigned int n) 1242 { 1243 return 0; 1244 } 1245 #endif 1246 1247 1248 /** 1249 * module_phy_driver() - Helper macro for registering PHY drivers 1250 * @__phy_drivers: array of PHY drivers to register 1251 * 1252 * Helper macro for PHY drivers which do not do anything special in module 1253 * init/exit. Each module may only use this macro once, and calling it 1254 * replaces module_init() and module_exit(). 1255 */ 1256 #define phy_module_driver(__phy_drivers, __count) \ 1257 static int __init phy_module_init(void) \ 1258 { \ 1259 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \ 1260 } \ 1261 module_init(phy_module_init); \ 1262 static void __exit phy_module_exit(void) \ 1263 { \ 1264 phy_drivers_unregister(__phy_drivers, __count); \ 1265 } \ 1266 module_exit(phy_module_exit) 1267 1268 #define module_phy_driver(__phy_drivers) \ 1269 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers)) 1270 1271 bool phy_driver_is_genphy(struct phy_device *phydev); 1272 bool phy_driver_is_genphy_10g(struct phy_device *phydev); 1273 1274 #endif /* __PHY_H */ 1275