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_basic_ports_array[3]; 59 extern const int phy_fibre_port_array[1]; 60 extern const int phy_all_ports_features_array[7]; 61 extern const int phy_10_100_features_array[4]; 62 extern const int phy_basic_t1_features_array[2]; 63 extern const int phy_gbit_features_array[2]; 64 extern const int phy_10gbit_features_array[1]; 65 66 /* 67 * Set phydev->irq to PHY_POLL if interrupts are not supported, 68 * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if 69 * the attached driver handles the interrupt 70 */ 71 #define PHY_POLL -1 72 #define PHY_IGNORE_INTERRUPT -2 73 74 #define PHY_IS_INTERNAL 0x00000001 75 #define PHY_RST_AFTER_CLK_EN 0x00000002 76 #define MDIO_DEVICE_IS_PHY 0x80000000 77 78 /* Interface Mode definitions */ 79 typedef enum { 80 PHY_INTERFACE_MODE_NA, 81 PHY_INTERFACE_MODE_INTERNAL, 82 PHY_INTERFACE_MODE_MII, 83 PHY_INTERFACE_MODE_GMII, 84 PHY_INTERFACE_MODE_SGMII, 85 PHY_INTERFACE_MODE_TBI, 86 PHY_INTERFACE_MODE_REVMII, 87 PHY_INTERFACE_MODE_RMII, 88 PHY_INTERFACE_MODE_RGMII, 89 PHY_INTERFACE_MODE_RGMII_ID, 90 PHY_INTERFACE_MODE_RGMII_RXID, 91 PHY_INTERFACE_MODE_RGMII_TXID, 92 PHY_INTERFACE_MODE_RTBI, 93 PHY_INTERFACE_MODE_SMII, 94 PHY_INTERFACE_MODE_XGMII, 95 PHY_INTERFACE_MODE_MOCA, 96 PHY_INTERFACE_MODE_QSGMII, 97 PHY_INTERFACE_MODE_TRGMII, 98 PHY_INTERFACE_MODE_1000BASEX, 99 PHY_INTERFACE_MODE_2500BASEX, 100 PHY_INTERFACE_MODE_RXAUI, 101 PHY_INTERFACE_MODE_XAUI, 102 /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */ 103 PHY_INTERFACE_MODE_10GKR, 104 PHY_INTERFACE_MODE_USXGMII, 105 PHY_INTERFACE_MODE_MAX, 106 } phy_interface_t; 107 108 /** 109 * phy_supported_speeds - return all speeds currently supported by a phy device 110 * @phy: The phy device to return supported speeds of. 111 * @speeds: buffer to store supported speeds in. 112 * @size: size of speeds buffer. 113 * 114 * Description: Returns the number of supported speeds, and fills 115 * the speeds buffer with the supported speeds. If speeds buffer is 116 * too small to contain all currently supported speeds, will return as 117 * many speeds as can fit. 118 */ 119 unsigned int phy_supported_speeds(struct phy_device *phy, 120 unsigned int *speeds, 121 unsigned int size); 122 123 /** 124 * phy_modes - map phy_interface_t enum to device tree binding of phy-mode 125 * @interface: enum phy_interface_t value 126 * 127 * Description: maps 'enum phy_interface_t' defined in this file 128 * into the device tree binding of 'phy-mode', so that Ethernet 129 * device driver can get phy interface from device tree. 130 */ 131 static inline const char *phy_modes(phy_interface_t interface) 132 { 133 switch (interface) { 134 case PHY_INTERFACE_MODE_NA: 135 return ""; 136 case PHY_INTERFACE_MODE_INTERNAL: 137 return "internal"; 138 case PHY_INTERFACE_MODE_MII: 139 return "mii"; 140 case PHY_INTERFACE_MODE_GMII: 141 return "gmii"; 142 case PHY_INTERFACE_MODE_SGMII: 143 return "sgmii"; 144 case PHY_INTERFACE_MODE_TBI: 145 return "tbi"; 146 case PHY_INTERFACE_MODE_REVMII: 147 return "rev-mii"; 148 case PHY_INTERFACE_MODE_RMII: 149 return "rmii"; 150 case PHY_INTERFACE_MODE_RGMII: 151 return "rgmii"; 152 case PHY_INTERFACE_MODE_RGMII_ID: 153 return "rgmii-id"; 154 case PHY_INTERFACE_MODE_RGMII_RXID: 155 return "rgmii-rxid"; 156 case PHY_INTERFACE_MODE_RGMII_TXID: 157 return "rgmii-txid"; 158 case PHY_INTERFACE_MODE_RTBI: 159 return "rtbi"; 160 case PHY_INTERFACE_MODE_SMII: 161 return "smii"; 162 case PHY_INTERFACE_MODE_XGMII: 163 return "xgmii"; 164 case PHY_INTERFACE_MODE_MOCA: 165 return "moca"; 166 case PHY_INTERFACE_MODE_QSGMII: 167 return "qsgmii"; 168 case PHY_INTERFACE_MODE_TRGMII: 169 return "trgmii"; 170 case PHY_INTERFACE_MODE_1000BASEX: 171 return "1000base-x"; 172 case PHY_INTERFACE_MODE_2500BASEX: 173 return "2500base-x"; 174 case PHY_INTERFACE_MODE_RXAUI: 175 return "rxaui"; 176 case PHY_INTERFACE_MODE_XAUI: 177 return "xaui"; 178 case PHY_INTERFACE_MODE_10GKR: 179 return "10gbase-kr"; 180 case PHY_INTERFACE_MODE_USXGMII: 181 return "usxgmii"; 182 default: 183 return "unknown"; 184 } 185 } 186 187 188 #define PHY_INIT_TIMEOUT 100000 189 #define PHY_FORCE_TIMEOUT 10 190 191 #define PHY_MAX_ADDR 32 192 193 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ 194 #define PHY_ID_FMT "%s:%02x" 195 196 #define MII_BUS_ID_SIZE 61 197 198 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit 199 IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */ 200 #define MII_ADDR_C45 (1<<30) 201 #define MII_DEVADDR_C45_SHIFT 16 202 #define MII_REGADDR_C45_MASK GENMASK(15, 0) 203 204 struct device; 205 struct phylink; 206 struct sk_buff; 207 208 /* 209 * The Bus class for PHYs. Devices which provide access to 210 * PHYs should register using this structure 211 */ 212 struct mii_bus { 213 struct module *owner; 214 const char *name; 215 char id[MII_BUS_ID_SIZE]; 216 void *priv; 217 int (*read)(struct mii_bus *bus, int addr, int regnum); 218 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val); 219 int (*reset)(struct mii_bus *bus); 220 221 /* 222 * A lock to ensure that only one thing can read/write 223 * the MDIO bus at a time 224 */ 225 struct mutex mdio_lock; 226 227 struct device *parent; 228 enum { 229 MDIOBUS_ALLOCATED = 1, 230 MDIOBUS_REGISTERED, 231 MDIOBUS_UNREGISTERED, 232 MDIOBUS_RELEASED, 233 } state; 234 struct device dev; 235 236 /* list of all PHYs on bus */ 237 struct mdio_device *mdio_map[PHY_MAX_ADDR]; 238 239 /* PHY addresses to be ignored when probing */ 240 u32 phy_mask; 241 242 /* PHY addresses to ignore the TA/read failure */ 243 u32 phy_ignore_ta_mask; 244 245 /* 246 * An array of interrupts, each PHY's interrupt at the index 247 * matching its address 248 */ 249 int irq[PHY_MAX_ADDR]; 250 251 /* GPIO reset pulse width in microseconds */ 252 int reset_delay_us; 253 /* RESET GPIO descriptor pointer */ 254 struct gpio_desc *reset_gpiod; 255 }; 256 #define to_mii_bus(d) container_of(d, struct mii_bus, dev) 257 258 struct mii_bus *mdiobus_alloc_size(size_t); 259 static inline struct mii_bus *mdiobus_alloc(void) 260 { 261 return mdiobus_alloc_size(0); 262 } 263 264 int __mdiobus_register(struct mii_bus *bus, struct module *owner); 265 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE) 266 void mdiobus_unregister(struct mii_bus *bus); 267 void mdiobus_free(struct mii_bus *bus); 268 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv); 269 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev) 270 { 271 return devm_mdiobus_alloc_size(dev, 0); 272 } 273 274 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus); 275 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); 276 277 #define PHY_INTERRUPT_DISABLED false 278 #define PHY_INTERRUPT_ENABLED true 279 280 /* PHY state machine states: 281 * 282 * DOWN: PHY device and driver are not ready for anything. probe 283 * should be called if and only if the PHY is in this state, 284 * given that the PHY device exists. 285 * - PHY driver probe function will set the state to READY 286 * 287 * READY: PHY is ready to send and receive packets, but the 288 * controller is not. By default, PHYs which do not implement 289 * probe will be set to this state by phy_probe(). 290 * - start will set the state to UP 291 * 292 * UP: The PHY and attached device are ready to do work. 293 * Interrupts should be started here. 294 * - timer moves to NOLINK or RUNNING 295 * 296 * NOLINK: PHY is up, but not currently plugged in. 297 * - irq or timer will set RUNNING if link comes back 298 * - phy_stop moves to HALTED 299 * 300 * RUNNING: PHY is currently up, running, and possibly sending 301 * and/or receiving packets 302 * - irq or timer will set NOLINK if link goes down 303 * - phy_stop moves to HALTED 304 * 305 * HALTED: PHY is up, but no polling or interrupts are done. Or 306 * PHY is in an error state. 307 * - phy_start moves to UP 308 */ 309 enum phy_state { 310 PHY_DOWN = 0, 311 PHY_READY, 312 PHY_HALTED, 313 PHY_UP, 314 PHY_RUNNING, 315 PHY_NOLINK, 316 }; 317 318 /** 319 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers 320 * @devices_in_package: Bit vector of devices present. 321 * @device_ids: The device identifer for each present device. 322 */ 323 struct phy_c45_device_ids { 324 u32 devices_in_package; 325 u32 device_ids[8]; 326 }; 327 328 /* phy_device: An instance of a PHY 329 * 330 * drv: Pointer to the driver for this PHY instance 331 * phy_id: UID for this device found during discovery 332 * c45_ids: 802.3-c45 Device Identifers if is_c45. 333 * is_c45: Set to true if this phy uses clause 45 addressing. 334 * is_internal: Set to true if this phy is internal to a MAC. 335 * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc. 336 * is_gigabit_capable: Set to true if PHY supports 1000Mbps 337 * has_fixups: Set to true if this phy has fixups/quirks. 338 * suspended: Set to true if this phy has been suspended successfully. 339 * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. 340 * loopback_enabled: Set true if this phy has been loopbacked successfully. 341 * state: state of the PHY for management purposes 342 * dev_flags: Device-specific flags used by the PHY driver. 343 * irq: IRQ number of the PHY's interrupt (-1 if none) 344 * phy_timer: The timer for handling the state machine 345 * attached_dev: The attached enet driver's device instance ptr 346 * adjust_link: Callback for the enet controller to respond to 347 * changes in the link state. 348 * 349 * speed, duplex, pause, supported, advertising, lp_advertising, 350 * and autoneg are used like in mii_if_info 351 * 352 * interrupts currently only supports enabled or disabled, 353 * but could be changed in the future to support enabling 354 * and disabling specific interrupts 355 * 356 * Contains some infrastructure for polling and interrupt 357 * handling, as well as handling shifts in PHY hardware state 358 */ 359 struct phy_device { 360 struct mdio_device mdio; 361 362 /* Information about the PHY type */ 363 /* And management functions */ 364 struct phy_driver *drv; 365 366 u32 phy_id; 367 368 struct phy_c45_device_ids c45_ids; 369 unsigned is_c45:1; 370 unsigned is_internal:1; 371 unsigned is_pseudo_fixed_link:1; 372 unsigned is_gigabit_capable:1; 373 unsigned has_fixups:1; 374 unsigned suspended:1; 375 unsigned sysfs_links:1; 376 unsigned loopback_enabled:1; 377 378 unsigned autoneg:1; 379 /* The most recently read link state */ 380 unsigned link:1; 381 unsigned autoneg_complete:1; 382 383 /* Interrupts are enabled */ 384 unsigned interrupts:1; 385 386 enum phy_state state; 387 388 u32 dev_flags; 389 390 phy_interface_t interface; 391 392 /* 393 * forced speed & duplex (no autoneg) 394 * partner speed & duplex & pause (autoneg) 395 */ 396 int speed; 397 int duplex; 398 int pause; 399 int asym_pause; 400 401 /* Union of PHY and Attached devices' supported link modes */ 402 /* See ethtool.h for more info */ 403 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 404 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 405 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); 406 /* used with phy_speed_down */ 407 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old); 408 409 /* Energy efficient ethernet modes which should be prohibited */ 410 u32 eee_broken_modes; 411 412 #ifdef CONFIG_LED_TRIGGER_PHY 413 struct phy_led_trigger *phy_led_triggers; 414 unsigned int phy_num_led_triggers; 415 struct phy_led_trigger *last_triggered; 416 417 struct phy_led_trigger *led_link_trigger; 418 #endif 419 420 /* 421 * Interrupt number for this PHY 422 * -1 means no interrupt 423 */ 424 int irq; 425 426 /* private data pointer */ 427 /* For use by PHYs to maintain extra state */ 428 void *priv; 429 430 /* Interrupt and Polling infrastructure */ 431 struct delayed_work state_queue; 432 433 struct mutex lock; 434 435 struct phylink *phylink; 436 struct net_device *attached_dev; 437 438 u8 mdix; 439 u8 mdix_ctrl; 440 441 void (*phy_link_change)(struct phy_device *, bool up, bool do_carrier); 442 void (*adjust_link)(struct net_device *dev); 443 }; 444 #define to_phy_device(d) container_of(to_mdio_device(d), \ 445 struct phy_device, mdio) 446 447 /* struct phy_driver: Driver structure for a particular PHY type 448 * 449 * driver_data: static driver data 450 * phy_id: The result of reading the UID registers of this PHY 451 * type, and ANDing them with the phy_id_mask. This driver 452 * only works for PHYs with IDs which match this field 453 * name: The friendly name of this PHY type 454 * phy_id_mask: Defines the important bits of the phy_id 455 * features: A mandatory list of features (speed, duplex, etc) 456 * supported by this PHY 457 * flags: A bitfield defining certain other features this PHY 458 * supports (like interrupts) 459 * 460 * All functions are optional. If config_aneg or read_status 461 * are not implemented, the phy core uses the genphy versions. 462 * Note that none of these functions should be called from 463 * interrupt time. The goal is for the bus read/write functions 464 * to be able to block when the bus transaction is happening, 465 * and be freed up by an interrupt (The MPC85xx has this ability, 466 * though it is not currently supported in the driver). 467 */ 468 struct phy_driver { 469 struct mdio_driver_common mdiodrv; 470 u32 phy_id; 471 char *name; 472 u32 phy_id_mask; 473 const unsigned long * const features; 474 u32 flags; 475 const void *driver_data; 476 477 /* 478 * Called to issue a PHY software reset 479 */ 480 int (*soft_reset)(struct phy_device *phydev); 481 482 /* 483 * Called to initialize the PHY, 484 * including after a reset 485 */ 486 int (*config_init)(struct phy_device *phydev); 487 488 /* 489 * Called during discovery. Used to set 490 * up device-specific structures, if any 491 */ 492 int (*probe)(struct phy_device *phydev); 493 494 /* 495 * Probe the hardware to determine what abilities it has. 496 * Should only set phydev->supported. 497 */ 498 int (*get_features)(struct phy_device *phydev); 499 500 /* PHY Power Management */ 501 int (*suspend)(struct phy_device *phydev); 502 int (*resume)(struct phy_device *phydev); 503 504 /* 505 * Configures the advertisement and resets 506 * autonegotiation if phydev->autoneg is on, 507 * forces the speed to the current settings in phydev 508 * if phydev->autoneg is off 509 */ 510 int (*config_aneg)(struct phy_device *phydev); 511 512 /* Determines the auto negotiation result */ 513 int (*aneg_done)(struct phy_device *phydev); 514 515 /* Determines the negotiated speed and duplex */ 516 int (*read_status)(struct phy_device *phydev); 517 518 /* Clears any pending interrupts */ 519 int (*ack_interrupt)(struct phy_device *phydev); 520 521 /* Enables or disables interrupts */ 522 int (*config_intr)(struct phy_device *phydev); 523 524 /* 525 * Checks if the PHY generated an interrupt. 526 * For multi-PHY devices with shared PHY interrupt pin 527 */ 528 int (*did_interrupt)(struct phy_device *phydev); 529 530 /* Override default interrupt handling */ 531 int (*handle_interrupt)(struct phy_device *phydev); 532 533 /* Clears up any memory if needed */ 534 void (*remove)(struct phy_device *phydev); 535 536 /* Returns true if this is a suitable driver for the given 537 * phydev. If NULL, matching is based on phy_id and 538 * phy_id_mask. 539 */ 540 int (*match_phy_device)(struct phy_device *phydev); 541 542 /* Handles ethtool queries for hardware time stamping. */ 543 int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti); 544 545 /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */ 546 int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr); 547 548 /* 549 * Requests a Rx timestamp for 'skb'. If the skb is accepted, 550 * the phy driver promises to deliver it using netif_rx() as 551 * soon as a timestamp becomes available. One of the 552 * PTP_CLASS_ values is passed in 'type'. The function must 553 * return true if the skb is accepted for delivery. 554 */ 555 bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); 556 557 /* 558 * Requests a Tx timestamp for 'skb'. The phy driver promises 559 * to deliver it using skb_complete_tx_timestamp() as soon as a 560 * timestamp becomes available. One of the PTP_CLASS_ values 561 * is passed in 'type'. 562 */ 563 void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); 564 565 /* Some devices (e.g. qnap TS-119P II) require PHY register changes to 566 * enable Wake on LAN, so set_wol is provided to be called in the 567 * ethernet driver's set_wol function. */ 568 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); 569 570 /* See set_wol, but for checking whether Wake on LAN is enabled. */ 571 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); 572 573 /* 574 * Called to inform a PHY device driver when the core is about to 575 * change the link state. This callback is supposed to be used as 576 * fixup hook for drivers that need to take action when the link 577 * state changes. Drivers are by no means allowed to mess with the 578 * PHY device structure in their implementations. 579 */ 580 void (*link_change_notify)(struct phy_device *dev); 581 582 /* 583 * Phy specific driver override for reading a MMD register. 584 * This function is optional for PHY specific drivers. When 585 * not provided, the default MMD read function will be used 586 * by phy_read_mmd(), which will use either a direct read for 587 * Clause 45 PHYs or an indirect read for Clause 22 PHYs. 588 * devnum is the MMD device number within the PHY device, 589 * regnum is the register within the selected MMD device. 590 */ 591 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum); 592 593 /* 594 * Phy specific driver override for writing a MMD register. 595 * This function is optional for PHY specific drivers. When 596 * not provided, the default MMD write function will be used 597 * by phy_write_mmd(), which will use either a direct write for 598 * Clause 45 PHYs, or an indirect write for Clause 22 PHYs. 599 * devnum is the MMD device number within the PHY device, 600 * regnum is the register within the selected MMD device. 601 * val is the value to be written. 602 */ 603 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum, 604 u16 val); 605 606 int (*read_page)(struct phy_device *dev); 607 int (*write_page)(struct phy_device *dev, int page); 608 609 /* Get the size and type of the eeprom contained within a plug-in 610 * module */ 611 int (*module_info)(struct phy_device *dev, 612 struct ethtool_modinfo *modinfo); 613 614 /* Get the eeprom information from the plug-in module */ 615 int (*module_eeprom)(struct phy_device *dev, 616 struct ethtool_eeprom *ee, u8 *data); 617 618 /* Get statistics from the phy using ethtool */ 619 int (*get_sset_count)(struct phy_device *dev); 620 void (*get_strings)(struct phy_device *dev, u8 *data); 621 void (*get_stats)(struct phy_device *dev, 622 struct ethtool_stats *stats, u64 *data); 623 624 /* Get and Set PHY tunables */ 625 int (*get_tunable)(struct phy_device *dev, 626 struct ethtool_tunable *tuna, void *data); 627 int (*set_tunable)(struct phy_device *dev, 628 struct ethtool_tunable *tuna, 629 const void *data); 630 int (*set_loopback)(struct phy_device *dev, bool enable); 631 }; 632 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \ 633 struct phy_driver, mdiodrv) 634 635 #define PHY_ANY_ID "MATCH ANY PHY" 636 #define PHY_ANY_UID 0xffffffff 637 638 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0) 639 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4) 640 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10) 641 642 /* A Structure for boards to register fixups with the PHY Lib */ 643 struct phy_fixup { 644 struct list_head list; 645 char bus_id[MII_BUS_ID_SIZE + 3]; 646 u32 phy_uid; 647 u32 phy_uid_mask; 648 int (*run)(struct phy_device *phydev); 649 }; 650 651 const char *phy_speed_to_str(int speed); 652 const char *phy_duplex_to_str(unsigned int duplex); 653 654 /* A structure for mapping a particular speed and duplex 655 * combination to a particular SUPPORTED and ADVERTISED value 656 */ 657 struct phy_setting { 658 u32 speed; 659 u8 duplex; 660 u8 bit; 661 }; 662 663 const struct phy_setting * 664 phy_lookup_setting(int speed, int duplex, const unsigned long *mask, 665 bool exact); 666 size_t phy_speeds(unsigned int *speeds, size_t size, 667 unsigned long *mask); 668 void of_set_phy_supported(struct phy_device *phydev); 669 void of_set_phy_eee_broken(struct phy_device *phydev); 670 int phy_speed_down_core(struct phy_device *phydev); 671 672 /** 673 * phy_is_started - Convenience function to check whether PHY is started 674 * @phydev: The phy_device struct 675 */ 676 static inline bool phy_is_started(struct phy_device *phydev) 677 { 678 return phydev->state >= PHY_UP; 679 } 680 681 void phy_resolve_aneg_linkmode(struct phy_device *phydev); 682 683 /** 684 * phy_read - Convenience function for reading a given PHY register 685 * @phydev: the phy_device struct 686 * @regnum: register number to read 687 * 688 * NOTE: MUST NOT be called from interrupt context, 689 * because the bus read/write functions may wait for an interrupt 690 * to conclude the operation. 691 */ 692 static inline int phy_read(struct phy_device *phydev, u32 regnum) 693 { 694 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); 695 } 696 697 /** 698 * __phy_read - convenience function for reading a given PHY register 699 * @phydev: the phy_device struct 700 * @regnum: register number to read 701 * 702 * The caller must have taken the MDIO bus lock. 703 */ 704 static inline int __phy_read(struct phy_device *phydev, u32 regnum) 705 { 706 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); 707 } 708 709 /** 710 * phy_write - Convenience function for writing a given PHY register 711 * @phydev: the phy_device struct 712 * @regnum: register number to write 713 * @val: value to write to @regnum 714 * 715 * NOTE: MUST NOT be called from interrupt context, 716 * because the bus read/write functions may wait for an interrupt 717 * to conclude the operation. 718 */ 719 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val) 720 { 721 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val); 722 } 723 724 /** 725 * __phy_write - Convenience function for writing a given PHY register 726 * @phydev: the phy_device struct 727 * @regnum: register number to write 728 * @val: value to write to @regnum 729 * 730 * The caller must have taken the MDIO bus lock. 731 */ 732 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val) 733 { 734 return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, 735 val); 736 } 737 738 /** 739 * phy_read_mmd - Convenience function for reading a register 740 * from an MMD on a given PHY. 741 * @phydev: The phy_device struct 742 * @devad: The MMD to read from 743 * @regnum: The register on the MMD to read 744 * 745 * Same rules as for phy_read(); 746 */ 747 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); 748 749 /** 750 * __phy_read_mmd - Convenience function for reading a register 751 * from an MMD on a given PHY. 752 * @phydev: The phy_device struct 753 * @devad: The MMD to read from 754 * @regnum: The register on the MMD to read 755 * 756 * Same rules as for __phy_read(); 757 */ 758 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); 759 760 /** 761 * phy_write_mmd - Convenience function for writing a register 762 * on an MMD on a given PHY. 763 * @phydev: The phy_device struct 764 * @devad: The MMD to write to 765 * @regnum: The register on the MMD to read 766 * @val: value to write to @regnum 767 * 768 * Same rules as for phy_write(); 769 */ 770 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); 771 772 /** 773 * __phy_write_mmd - Convenience function for writing a register 774 * on an MMD on a given PHY. 775 * @phydev: The phy_device struct 776 * @devad: The MMD to write to 777 * @regnum: The register on the MMD to read 778 * @val: value to write to @regnum 779 * 780 * Same rules as for __phy_write(); 781 */ 782 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); 783 784 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, 785 u16 set); 786 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, 787 u16 set); 788 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set); 789 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set); 790 791 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum, 792 u16 mask, u16 set); 793 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum, 794 u16 mask, u16 set); 795 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum, 796 u16 mask, u16 set); 797 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum, 798 u16 mask, u16 set); 799 800 /** 801 * __phy_set_bits - Convenience function for setting bits in a PHY register 802 * @phydev: the phy_device struct 803 * @regnum: register number to write 804 * @val: bits to set 805 * 806 * The caller must have taken the MDIO bus lock. 807 */ 808 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val) 809 { 810 return __phy_modify(phydev, regnum, 0, val); 811 } 812 813 /** 814 * __phy_clear_bits - Convenience function for clearing bits in a PHY register 815 * @phydev: the phy_device struct 816 * @regnum: register number to write 817 * @val: bits to clear 818 * 819 * The caller must have taken the MDIO bus lock. 820 */ 821 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum, 822 u16 val) 823 { 824 return __phy_modify(phydev, regnum, val, 0); 825 } 826 827 /** 828 * phy_set_bits - Convenience function for setting bits in a PHY register 829 * @phydev: the phy_device struct 830 * @regnum: register number to write 831 * @val: bits to set 832 */ 833 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val) 834 { 835 return phy_modify(phydev, regnum, 0, val); 836 } 837 838 /** 839 * phy_clear_bits - Convenience function for clearing bits in a PHY register 840 * @phydev: the phy_device struct 841 * @regnum: register number to write 842 * @val: bits to clear 843 */ 844 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val) 845 { 846 return phy_modify(phydev, regnum, val, 0); 847 } 848 849 /** 850 * __phy_set_bits_mmd - Convenience function for setting bits in a register 851 * on MMD 852 * @phydev: the phy_device struct 853 * @devad: the MMD containing register to modify 854 * @regnum: register number to modify 855 * @val: bits to set 856 * 857 * The caller must have taken the MDIO bus lock. 858 */ 859 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad, 860 u32 regnum, u16 val) 861 { 862 return __phy_modify_mmd(phydev, devad, regnum, 0, val); 863 } 864 865 /** 866 * __phy_clear_bits_mmd - Convenience function for clearing bits in a register 867 * on MMD 868 * @phydev: the phy_device struct 869 * @devad: the MMD containing register to modify 870 * @regnum: register number to modify 871 * @val: bits to clear 872 * 873 * The caller must have taken the MDIO bus lock. 874 */ 875 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad, 876 u32 regnum, u16 val) 877 { 878 return __phy_modify_mmd(phydev, devad, regnum, val, 0); 879 } 880 881 /** 882 * phy_set_bits_mmd - Convenience function for setting bits in a register 883 * on MMD 884 * @phydev: the phy_device struct 885 * @devad: the MMD containing register to modify 886 * @regnum: register number to modify 887 * @val: bits to set 888 */ 889 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad, 890 u32 regnum, u16 val) 891 { 892 return phy_modify_mmd(phydev, devad, regnum, 0, val); 893 } 894 895 /** 896 * phy_clear_bits_mmd - Convenience function for clearing bits in a register 897 * on MMD 898 * @phydev: the phy_device struct 899 * @devad: the MMD containing register to modify 900 * @regnum: register number to modify 901 * @val: bits to clear 902 */ 903 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad, 904 u32 regnum, u16 val) 905 { 906 return phy_modify_mmd(phydev, devad, regnum, val, 0); 907 } 908 909 /** 910 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq 911 * @phydev: the phy_device struct 912 * 913 * NOTE: must be kept in sync with addition/removal of PHY_POLL and 914 * PHY_IGNORE_INTERRUPT 915 */ 916 static inline bool phy_interrupt_is_valid(struct phy_device *phydev) 917 { 918 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT; 919 } 920 921 /** 922 * phy_polling_mode - Convenience function for testing whether polling is 923 * used to detect PHY status changes 924 * @phydev: the phy_device struct 925 */ 926 static inline bool phy_polling_mode(struct phy_device *phydev) 927 { 928 return phydev->irq == PHY_POLL; 929 } 930 931 /** 932 * phy_is_internal - Convenience function for testing if a PHY is internal 933 * @phydev: the phy_device struct 934 */ 935 static inline bool phy_is_internal(struct phy_device *phydev) 936 { 937 return phydev->is_internal; 938 } 939 940 /** 941 * phy_interface_mode_is_rgmii - Convenience function for testing if a 942 * PHY interface mode is RGMII (all variants) 943 * @mode: the phy_interface_t enum 944 */ 945 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode) 946 { 947 return mode >= PHY_INTERFACE_MODE_RGMII && 948 mode <= PHY_INTERFACE_MODE_RGMII_TXID; 949 }; 950 951 /** 952 * phy_interface_mode_is_8023z() - does the phy interface mode use 802.3z 953 * negotiation 954 * @mode: one of &enum phy_interface_t 955 * 956 * Returns true if the phy interface mode uses the 16-bit negotiation 957 * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding) 958 */ 959 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode) 960 { 961 return mode == PHY_INTERFACE_MODE_1000BASEX || 962 mode == PHY_INTERFACE_MODE_2500BASEX; 963 } 964 965 /** 966 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface 967 * is RGMII (all variants) 968 * @phydev: the phy_device struct 969 */ 970 static inline bool phy_interface_is_rgmii(struct phy_device *phydev) 971 { 972 return phy_interface_mode_is_rgmii(phydev->interface); 973 }; 974 975 /* 976 * phy_is_pseudo_fixed_link - Convenience function for testing if this 977 * PHY is the CPU port facing side of an Ethernet switch, or similar. 978 * @phydev: the phy_device struct 979 */ 980 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev) 981 { 982 return phydev->is_pseudo_fixed_link; 983 } 984 985 int phy_save_page(struct phy_device *phydev); 986 int phy_select_page(struct phy_device *phydev, int page); 987 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret); 988 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum); 989 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val); 990 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum, 991 u16 mask, u16 set); 992 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum, 993 u16 mask, u16 set); 994 995 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, 996 bool is_c45, 997 struct phy_c45_device_ids *c45_ids); 998 #if IS_ENABLED(CONFIG_PHYLIB) 999 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); 1000 int phy_device_register(struct phy_device *phy); 1001 void phy_device_free(struct phy_device *phydev); 1002 #else 1003 static inline 1004 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45) 1005 { 1006 return NULL; 1007 } 1008 1009 static inline int phy_device_register(struct phy_device *phy) 1010 { 1011 return 0; 1012 } 1013 1014 static inline void phy_device_free(struct phy_device *phydev) { } 1015 #endif /* CONFIG_PHYLIB */ 1016 void phy_device_remove(struct phy_device *phydev); 1017 int phy_init_hw(struct phy_device *phydev); 1018 int phy_suspend(struct phy_device *phydev); 1019 int phy_resume(struct phy_device *phydev); 1020 int __phy_resume(struct phy_device *phydev); 1021 int phy_loopback(struct phy_device *phydev, bool enable); 1022 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, 1023 phy_interface_t interface); 1024 struct phy_device *phy_find_first(struct mii_bus *bus); 1025 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, 1026 u32 flags, phy_interface_t interface); 1027 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, 1028 void (*handler)(struct net_device *), 1029 phy_interface_t interface); 1030 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id, 1031 void (*handler)(struct net_device *), 1032 phy_interface_t interface); 1033 void phy_disconnect(struct phy_device *phydev); 1034 void phy_detach(struct phy_device *phydev); 1035 void phy_start(struct phy_device *phydev); 1036 void phy_stop(struct phy_device *phydev); 1037 int phy_start_aneg(struct phy_device *phydev); 1038 int phy_aneg_done(struct phy_device *phydev); 1039 int phy_speed_down(struct phy_device *phydev, bool sync); 1040 int phy_speed_up(struct phy_device *phydev); 1041 1042 int phy_restart_aneg(struct phy_device *phydev); 1043 int phy_reset_after_clk_enable(struct phy_device *phydev); 1044 1045 static inline void phy_device_reset(struct phy_device *phydev, int value) 1046 { 1047 mdio_device_reset(&phydev->mdio, value); 1048 } 1049 1050 #define phydev_err(_phydev, format, args...) \ 1051 dev_err(&_phydev->mdio.dev, format, ##args) 1052 1053 #define phydev_info(_phydev, format, args...) \ 1054 dev_info(&_phydev->mdio.dev, format, ##args) 1055 1056 #define phydev_warn(_phydev, format, args...) \ 1057 dev_warn(&_phydev->mdio.dev, format, ##args) 1058 1059 #define phydev_dbg(_phydev, format, args...) \ 1060 dev_dbg(&_phydev->mdio.dev, format, ##args) 1061 1062 static inline const char *phydev_name(const struct phy_device *phydev) 1063 { 1064 return dev_name(&phydev->mdio.dev); 1065 } 1066 1067 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...) 1068 __printf(2, 3); 1069 void phy_attached_info(struct phy_device *phydev); 1070 1071 /* Clause 22 PHY */ 1072 int genphy_read_abilities(struct phy_device *phydev); 1073 int genphy_setup_forced(struct phy_device *phydev); 1074 int genphy_restart_aneg(struct phy_device *phydev); 1075 int genphy_config_eee_advert(struct phy_device *phydev); 1076 int __genphy_config_aneg(struct phy_device *phydev, bool changed); 1077 int genphy_aneg_done(struct phy_device *phydev); 1078 int genphy_update_link(struct phy_device *phydev); 1079 int genphy_read_status(struct phy_device *phydev); 1080 int genphy_suspend(struct phy_device *phydev); 1081 int genphy_resume(struct phy_device *phydev); 1082 int genphy_loopback(struct phy_device *phydev, bool enable); 1083 int genphy_soft_reset(struct phy_device *phydev); 1084 1085 static inline int genphy_config_aneg(struct phy_device *phydev) 1086 { 1087 return __genphy_config_aneg(phydev, false); 1088 } 1089 1090 static inline int genphy_no_soft_reset(struct phy_device *phydev) 1091 { 1092 return 0; 1093 } 1094 static inline int genphy_no_ack_interrupt(struct phy_device *phydev) 1095 { 1096 return 0; 1097 } 1098 static inline int genphy_no_config_intr(struct phy_device *phydev) 1099 { 1100 return 0; 1101 } 1102 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad, 1103 u16 regnum); 1104 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum, 1105 u16 regnum, u16 val); 1106 1107 /* Clause 45 PHY */ 1108 int genphy_c45_restart_aneg(struct phy_device *phydev); 1109 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart); 1110 int genphy_c45_aneg_done(struct phy_device *phydev); 1111 int genphy_c45_read_link(struct phy_device *phydev); 1112 int genphy_c45_read_lpa(struct phy_device *phydev); 1113 int genphy_c45_read_pma(struct phy_device *phydev); 1114 int genphy_c45_pma_setup_forced(struct phy_device *phydev); 1115 int genphy_c45_an_config_aneg(struct phy_device *phydev); 1116 int genphy_c45_an_disable_aneg(struct phy_device *phydev); 1117 int genphy_c45_read_mdix(struct phy_device *phydev); 1118 int genphy_c45_pma_read_abilities(struct phy_device *phydev); 1119 int genphy_c45_read_status(struct phy_device *phydev); 1120 int genphy_c45_config_aneg(struct phy_device *phydev); 1121 1122 /* The gen10g_* functions are the old Clause 45 stub */ 1123 int gen10g_config_aneg(struct phy_device *phydev); 1124 1125 static inline int phy_read_status(struct phy_device *phydev) 1126 { 1127 if (!phydev->drv) 1128 return -EIO; 1129 1130 if (phydev->drv->read_status) 1131 return phydev->drv->read_status(phydev); 1132 else 1133 return genphy_read_status(phydev); 1134 } 1135 1136 void phy_driver_unregister(struct phy_driver *drv); 1137 void phy_drivers_unregister(struct phy_driver *drv, int n); 1138 int phy_driver_register(struct phy_driver *new_driver, struct module *owner); 1139 int phy_drivers_register(struct phy_driver *new_driver, int n, 1140 struct module *owner); 1141 void phy_state_machine(struct work_struct *work); 1142 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies); 1143 void phy_mac_interrupt(struct phy_device *phydev); 1144 void phy_start_machine(struct phy_device *phydev); 1145 void phy_stop_machine(struct phy_device *phydev); 1146 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); 1147 void phy_ethtool_ksettings_get(struct phy_device *phydev, 1148 struct ethtool_link_ksettings *cmd); 1149 int phy_ethtool_ksettings_set(struct phy_device *phydev, 1150 const struct ethtool_link_ksettings *cmd); 1151 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); 1152 void phy_request_interrupt(struct phy_device *phydev); 1153 void phy_free_interrupt(struct phy_device *phydev); 1154 void phy_print_status(struct phy_device *phydev); 1155 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); 1156 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode); 1157 void phy_advertise_supported(struct phy_device *phydev); 1158 void phy_support_sym_pause(struct phy_device *phydev); 1159 void phy_support_asym_pause(struct phy_device *phydev); 1160 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx, 1161 bool autoneg); 1162 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx); 1163 bool phy_validate_pause(struct phy_device *phydev, 1164 struct ethtool_pauseparam *pp); 1165 1166 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, 1167 int (*run)(struct phy_device *)); 1168 int phy_register_fixup_for_id(const char *bus_id, 1169 int (*run)(struct phy_device *)); 1170 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, 1171 int (*run)(struct phy_device *)); 1172 1173 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask); 1174 int phy_unregister_fixup_for_id(const char *bus_id); 1175 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask); 1176 1177 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); 1178 int phy_get_eee_err(struct phy_device *phydev); 1179 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); 1180 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); 1181 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); 1182 void phy_ethtool_get_wol(struct phy_device *phydev, 1183 struct ethtool_wolinfo *wol); 1184 int phy_ethtool_get_link_ksettings(struct net_device *ndev, 1185 struct ethtool_link_ksettings *cmd); 1186 int phy_ethtool_set_link_ksettings(struct net_device *ndev, 1187 const struct ethtool_link_ksettings *cmd); 1188 int phy_ethtool_nway_reset(struct net_device *ndev); 1189 1190 #if IS_ENABLED(CONFIG_PHYLIB) 1191 int __init mdio_bus_init(void); 1192 void mdio_bus_exit(void); 1193 #endif 1194 1195 /* Inline function for use within net/core/ethtool.c (built-in) */ 1196 static inline int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data) 1197 { 1198 if (!phydev->drv) 1199 return -EIO; 1200 1201 mutex_lock(&phydev->lock); 1202 phydev->drv->get_strings(phydev, data); 1203 mutex_unlock(&phydev->lock); 1204 1205 return 0; 1206 } 1207 1208 static inline int phy_ethtool_get_sset_count(struct phy_device *phydev) 1209 { 1210 int ret; 1211 1212 if (!phydev->drv) 1213 return -EIO; 1214 1215 if (phydev->drv->get_sset_count && 1216 phydev->drv->get_strings && 1217 phydev->drv->get_stats) { 1218 mutex_lock(&phydev->lock); 1219 ret = phydev->drv->get_sset_count(phydev); 1220 mutex_unlock(&phydev->lock); 1221 1222 return ret; 1223 } 1224 1225 return -EOPNOTSUPP; 1226 } 1227 1228 static inline int phy_ethtool_get_stats(struct phy_device *phydev, 1229 struct ethtool_stats *stats, u64 *data) 1230 { 1231 if (!phydev->drv) 1232 return -EIO; 1233 1234 mutex_lock(&phydev->lock); 1235 phydev->drv->get_stats(phydev, stats, data); 1236 mutex_unlock(&phydev->lock); 1237 1238 return 0; 1239 } 1240 1241 extern struct bus_type mdio_bus_type; 1242 1243 struct mdio_board_info { 1244 const char *bus_id; 1245 char modalias[MDIO_NAME_SIZE]; 1246 int mdio_addr; 1247 const void *platform_data; 1248 }; 1249 1250 #if IS_ENABLED(CONFIG_MDIO_DEVICE) 1251 int mdiobus_register_board_info(const struct mdio_board_info *info, 1252 unsigned int n); 1253 #else 1254 static inline int mdiobus_register_board_info(const struct mdio_board_info *i, 1255 unsigned int n) 1256 { 1257 return 0; 1258 } 1259 #endif 1260 1261 1262 /** 1263 * module_phy_driver() - Helper macro for registering PHY drivers 1264 * @__phy_drivers: array of PHY drivers to register 1265 * 1266 * Helper macro for PHY drivers which do not do anything special in module 1267 * init/exit. Each module may only use this macro once, and calling it 1268 * replaces module_init() and module_exit(). 1269 */ 1270 #define phy_module_driver(__phy_drivers, __count) \ 1271 static int __init phy_module_init(void) \ 1272 { \ 1273 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \ 1274 } \ 1275 module_init(phy_module_init); \ 1276 static void __exit phy_module_exit(void) \ 1277 { \ 1278 phy_drivers_unregister(__phy_drivers, __count); \ 1279 } \ 1280 module_exit(phy_module_exit) 1281 1282 #define module_phy_driver(__phy_drivers) \ 1283 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers)) 1284 1285 bool phy_driver_is_genphy(struct phy_device *phydev); 1286 bool phy_driver_is_genphy_10g(struct phy_device *phydev); 1287 1288 #endif /* __PHY_H */ 1289