1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers 4 * Copyright 2006-2009 Solarflare Communications Inc. 5 */ 6 #ifndef __LINUX_MDIO_H__ 7 #define __LINUX_MDIO_H__ 8 9 #include <uapi/linux/mdio.h> 10 #include <linux/bitfield.h> 11 #include <linux/mod_devicetable.h> 12 13 struct gpio_desc; 14 struct mii_bus; 15 struct reset_control; 16 17 /* Multiple levels of nesting are possible. However typically this is 18 * limited to nested DSA like layer, a MUX layer, and the normal 19 * user. Instead of trying to handle the general case, just define 20 * these cases. 21 */ 22 enum mdio_mutex_lock_class { 23 MDIO_MUTEX_NORMAL, 24 MDIO_MUTEX_MUX, 25 MDIO_MUTEX_NESTED, 26 }; 27 28 struct mdio_device { 29 struct device dev; 30 31 struct mii_bus *bus; 32 char modalias[MDIO_NAME_SIZE]; 33 34 int (*bus_match)(struct device *dev, const struct device_driver *drv); 35 void (*device_free)(struct mdio_device *mdiodev); 36 void (*device_remove)(struct mdio_device *mdiodev); 37 38 /* Bus address of the MDIO device (0-31) */ 39 int addr; 40 int flags; 41 int reset_state; 42 struct gpio_desc *reset_gpio; 43 struct reset_control *reset_ctrl; 44 unsigned int reset_assert_delay; 45 unsigned int reset_deassert_delay; 46 }; 47 48 static inline struct mdio_device *to_mdio_device(const struct device *dev) 49 { 50 return container_of(dev, struct mdio_device, dev); 51 } 52 53 /* struct mdio_driver_common: Common to all MDIO drivers */ 54 struct mdio_driver_common { 55 struct device_driver driver; 56 int flags; 57 }; 58 #define MDIO_DEVICE_FLAG_PHY 1 59 60 #define to_mdio_common_driver(__drv_c) container_of_const(__drv_c, struct mdio_driver_common, \ 61 driver) 62 63 /* struct mdio_driver: Generic MDIO driver */ 64 struct mdio_driver { 65 struct mdio_driver_common mdiodrv; 66 67 /* 68 * Called during discovery. Used to set 69 * up device-specific structures, if any 70 */ 71 int (*probe)(struct mdio_device *mdiodev); 72 73 /* Clears up any memory if needed */ 74 void (*remove)(struct mdio_device *mdiodev); 75 76 /* Quiesces the device on system shutdown, turns off interrupts etc */ 77 void (*shutdown)(struct mdio_device *mdiodev); 78 }; 79 80 #define to_mdio_driver(__drv_m) container_of_const(to_mdio_common_driver(__drv_m), \ 81 struct mdio_driver, mdiodrv) 82 83 /* device driver data */ 84 static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data) 85 { 86 dev_set_drvdata(&mdio->dev, data); 87 } 88 89 static inline void *mdiodev_get_drvdata(struct mdio_device *mdio) 90 { 91 return dev_get_drvdata(&mdio->dev); 92 } 93 94 void mdio_device_free(struct mdio_device *mdiodev); 95 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr); 96 int mdio_device_register(struct mdio_device *mdiodev); 97 void mdio_device_remove(struct mdio_device *mdiodev); 98 void mdio_device_reset(struct mdio_device *mdiodev, int value); 99 int mdio_driver_register(struct mdio_driver *drv); 100 void mdio_driver_unregister(struct mdio_driver *drv); 101 int mdio_device_bus_match(struct device *dev, const struct device_driver *drv); 102 103 static inline void mdio_device_get(struct mdio_device *mdiodev) 104 { 105 get_device(&mdiodev->dev); 106 } 107 108 static inline void mdio_device_put(struct mdio_device *mdiodev) 109 { 110 mdio_device_free(mdiodev); 111 } 112 113 static inline bool mdio_phy_id_is_c45(int phy_id) 114 { 115 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK); 116 } 117 118 static inline __u16 mdio_phy_id_prtad(int phy_id) 119 { 120 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5; 121 } 122 123 static inline __u16 mdio_phy_id_devad(int phy_id) 124 { 125 return phy_id & MDIO_PHY_ID_DEVAD; 126 } 127 128 /** 129 * struct mdio_if_info - Ethernet controller MDIO interface 130 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown) 131 * @mmds: Mask of MMDs expected to be present in the PHY. This must be 132 * non-zero unless @prtad = %MDIO_PRTAD_NONE. 133 * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then 134 * MII register access will be passed through with @devad = 135 * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to 136 * commonly used clause 22 registers will be translated into 137 * clause 45 registers. 138 * @dev: Net device structure 139 * @mdio_read: Register read function; returns value or negative error code 140 * @mdio_write: Register write function; returns 0 or negative error code 141 */ 142 struct mdio_if_info { 143 int prtad; 144 u32 mmds; 145 unsigned mode_support; 146 147 struct net_device *dev; 148 int (*mdio_read)(struct net_device *dev, int prtad, int devad, 149 u16 addr); 150 int (*mdio_write)(struct net_device *dev, int prtad, int devad, 151 u16 addr, u16 val); 152 }; 153 154 #define MDIO_PRTAD_NONE (-1) 155 #define MDIO_DEVAD_NONE (-1) 156 #define MDIO_SUPPORTS_C22 1 157 #define MDIO_SUPPORTS_C45 2 158 #define MDIO_EMULATE_C22 4 159 160 struct ethtool_cmd; 161 struct ethtool_pauseparam; 162 extern int mdio45_probe(struct mdio_if_info *mdio, int prtad); 163 extern int mdio_set_flag(const struct mdio_if_info *mdio, 164 int prtad, int devad, u16 addr, int mask, 165 bool sense); 166 extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds); 167 extern int mdio45_nway_restart(const struct mdio_if_info *mdio); 168 extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, 169 struct ethtool_cmd *ecmd, 170 u32 npage_adv, u32 npage_lpa); 171 extern void 172 mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio, 173 struct ethtool_link_ksettings *cmd, 174 u32 npage_adv, u32 npage_lpa); 175 176 /** 177 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS 178 * @mdio: MDIO interface 179 * @cmd: Ethtool request structure 180 * 181 * Since the CSRs for auto-negotiation using next pages are not fully 182 * standardised, this function does not attempt to decode them. Use 183 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits 184 * from next pages. 185 */ 186 static inline void 187 mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio, 188 struct ethtool_link_ksettings *cmd) 189 { 190 mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0); 191 } 192 193 extern int mdio_mii_ioctl(const struct mdio_if_info *mdio, 194 struct mii_ioctl_data *mii_data, int cmd); 195 196 /** 197 * mmd_eee_cap_to_ethtool_sup_t 198 * @eee_cap: value of the MMD EEE Capability register 199 * 200 * A small helper function that translates MMD EEE Capability (3.20) bits 201 * to ethtool supported settings. 202 */ 203 static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap) 204 { 205 u32 supported = 0; 206 207 if (eee_cap & MDIO_EEE_100TX) 208 supported |= SUPPORTED_100baseT_Full; 209 if (eee_cap & MDIO_EEE_1000T) 210 supported |= SUPPORTED_1000baseT_Full; 211 if (eee_cap & MDIO_EEE_10GT) 212 supported |= SUPPORTED_10000baseT_Full; 213 if (eee_cap & MDIO_EEE_1000KX) 214 supported |= SUPPORTED_1000baseKX_Full; 215 if (eee_cap & MDIO_EEE_10GKX4) 216 supported |= SUPPORTED_10000baseKX4_Full; 217 if (eee_cap & MDIO_EEE_10GKR) 218 supported |= SUPPORTED_10000baseKR_Full; 219 220 return supported; 221 } 222 223 /** 224 * mmd_eee_adv_to_ethtool_adv_t 225 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers 226 * 227 * A small helper function that translates the MMD EEE Advertisment (7.60) 228 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement 229 * settings. 230 */ 231 static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv) 232 { 233 u32 adv = 0; 234 235 if (eee_adv & MDIO_EEE_100TX) 236 adv |= ADVERTISED_100baseT_Full; 237 if (eee_adv & MDIO_EEE_1000T) 238 adv |= ADVERTISED_1000baseT_Full; 239 if (eee_adv & MDIO_EEE_10GT) 240 adv |= ADVERTISED_10000baseT_Full; 241 if (eee_adv & MDIO_EEE_1000KX) 242 adv |= ADVERTISED_1000baseKX_Full; 243 if (eee_adv & MDIO_EEE_10GKX4) 244 adv |= ADVERTISED_10000baseKX4_Full; 245 if (eee_adv & MDIO_EEE_10GKR) 246 adv |= ADVERTISED_10000baseKR_Full; 247 248 return adv; 249 } 250 251 /** 252 * ethtool_adv_to_mmd_eee_adv_t 253 * @adv: the ethtool advertisement settings 254 * 255 * A small helper function that translates ethtool advertisement settings 256 * to EEE advertisements for the MMD EEE Advertisement (7.60) and 257 * MMD EEE Link Partner Ability (7.61) registers. 258 */ 259 static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv) 260 { 261 u16 reg = 0; 262 263 if (adv & ADVERTISED_100baseT_Full) 264 reg |= MDIO_EEE_100TX; 265 if (adv & ADVERTISED_1000baseT_Full) 266 reg |= MDIO_EEE_1000T; 267 if (adv & ADVERTISED_10000baseT_Full) 268 reg |= MDIO_EEE_10GT; 269 if (adv & ADVERTISED_1000baseKX_Full) 270 reg |= MDIO_EEE_1000KX; 271 if (adv & ADVERTISED_10000baseKX4_Full) 272 reg |= MDIO_EEE_10GKX4; 273 if (adv & ADVERTISED_10000baseKR_Full) 274 reg |= MDIO_EEE_10GKR; 275 276 return reg; 277 } 278 279 /** 280 * linkmode_adv_to_mii_10gbt_adv_t 281 * @advertising: the linkmode advertisement settings 282 * 283 * A small helper function that translates linkmode advertisement 284 * settings to phy autonegotiation advertisements for the C45 285 * 10GBASE-T AN CONTROL (7.32) register. 286 */ 287 static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising) 288 { 289 u32 result = 0; 290 291 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, 292 advertising)) 293 result |= MDIO_AN_10GBT_CTRL_ADV2_5G; 294 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, 295 advertising)) 296 result |= MDIO_AN_10GBT_CTRL_ADV5G; 297 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 298 advertising)) 299 result |= MDIO_AN_10GBT_CTRL_ADV10G; 300 301 return result; 302 } 303 304 /** 305 * mii_10gbt_stat_mod_linkmode_lpa_t 306 * @advertising: target the linkmode advertisement settings 307 * @lpa: value of the C45 10GBASE-T AN STATUS register 308 * 309 * A small helper function that translates C45 10GBASE-T AN STATUS register bits 310 * to linkmode advertisement settings. Other bits in advertising aren't changed. 311 */ 312 static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising, 313 u32 lpa) 314 { 315 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, 316 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G); 317 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, 318 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G); 319 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 320 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G); 321 } 322 323 /** 324 * mii_t1_adv_l_mod_linkmode_t 325 * @advertising: target the linkmode advertisement settings 326 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register 327 * 328 * A small helper function that translates BASE-T1 Autonegotiation 329 * Advertisement [15:0] Register bits to linkmode advertisement settings. 330 * Other bits in advertising aren't changed. 331 */ 332 static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa) 333 { 334 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising, 335 lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP); 336 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising, 337 lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM); 338 } 339 340 /** 341 * mii_t1_adv_m_mod_linkmode_t 342 * @advertising: target the linkmode advertisement settings 343 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register 344 * 345 * A small helper function that translates BASE-T1 Autonegotiation 346 * Advertisement [31:16] Register bits to linkmode advertisement settings. 347 * Other bits in advertising aren't changed. 348 */ 349 static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa) 350 { 351 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, 352 advertising, lpa & MDIO_AN_T1_ADV_M_B10L); 353 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT, 354 advertising, lpa & MDIO_AN_T1_ADV_M_100BT1); 355 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT, 356 advertising, lpa & MDIO_AN_T1_ADV_M_1000BT1); 357 } 358 359 /** 360 * linkmode_adv_to_mii_t1_adv_l_t 361 * @advertising: the linkmode advertisement settings 362 * 363 * A small helper function that translates linkmode advertisement 364 * settings to phy autonegotiation advertisements for the 365 * BASE-T1 Autonegotiation Advertisement [15:0] Register. 366 */ 367 static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising) 368 { 369 u32 result = 0; 370 371 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising)) 372 result |= MDIO_AN_T1_ADV_L_PAUSE_CAP; 373 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising)) 374 result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM; 375 376 return result; 377 } 378 379 /** 380 * linkmode_adv_to_mii_t1_adv_m_t 381 * @advertising: the linkmode advertisement settings 382 * 383 * A small helper function that translates linkmode advertisement 384 * settings to phy autonegotiation advertisements for the 385 * BASE-T1 Autonegotiation Advertisement [31:16] Register. 386 */ 387 static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising) 388 { 389 u32 result = 0; 390 391 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising)) 392 result |= MDIO_AN_T1_ADV_M_B10L; 393 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT, advertising)) 394 result |= MDIO_AN_T1_ADV_M_100BT1; 395 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT, advertising)) 396 result |= MDIO_AN_T1_ADV_M_1000BT1; 397 398 return result; 399 } 400 401 /** 402 * mii_eee_cap1_mod_linkmode_t() 403 * @adv: target the linkmode advertisement settings 404 * @val: register value 405 * 406 * A function that translates value of following registers to the linkmode: 407 * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20) 408 * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60) 409 * IEEE 802.3-2018 45.2.7.14 "EEE link partner ability 1" register (7.61) 410 */ 411 static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val) 412 { 413 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, 414 adv, val & MDIO_EEE_100TX); 415 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 416 adv, val & MDIO_EEE_1000T); 417 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 418 adv, val & MDIO_EEE_10GT); 419 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 420 adv, val & MDIO_EEE_1000KX); 421 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 422 adv, val & MDIO_EEE_10GKX4); 423 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 424 adv, val & MDIO_EEE_10GKR); 425 } 426 427 /** 428 * mii_eee_cap2_mod_linkmode_sup_t() 429 * @adv: target the linkmode settings 430 * @val: register value 431 * 432 * A function that translates value of following registers to the linkmode: 433 * IEEE 802.3-2022 45.2.3.11 "EEE control and capability 2" register (3.21) 434 */ 435 static inline void mii_eee_cap2_mod_linkmode_sup_t(unsigned long *adv, u32 val) 436 { 437 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, 438 adv, val & MDIO_EEE_2_5GT); 439 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, 440 adv, val & MDIO_EEE_5GT); 441 } 442 443 /** 444 * mii_eee_cap2_mod_linkmode_adv_t() 445 * @adv: target the linkmode advertisement settings 446 * @val: register value 447 * 448 * A function that translates value of following registers to the linkmode: 449 * IEEE 802.3-2022 45.2.7.16 "EEE advertisement 2" register (7.62) 450 * IEEE 802.3-2022 45.2.7.17 "EEE link partner ability 2" register (7.63) 451 * Note: Currently this function is the same as mii_eee_cap2_mod_linkmode_sup_t. 452 * For certain, not yet supported, modes however the bits differ. 453 * Therefore create separate functions already. 454 */ 455 static inline void mii_eee_cap2_mod_linkmode_adv_t(unsigned long *adv, u32 val) 456 { 457 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, 458 adv, val & MDIO_EEE_2_5GT); 459 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, 460 adv, val & MDIO_EEE_5GT); 461 } 462 463 /** 464 * linkmode_to_mii_eee_cap1_t() 465 * @adv: the linkmode advertisement settings 466 * 467 * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13 468 * "EEE advertisement 1" register (7.60) 469 */ 470 static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv) 471 { 472 u32 result = 0; 473 474 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv)) 475 result |= MDIO_EEE_100TX; 476 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv)) 477 result |= MDIO_EEE_1000T; 478 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv)) 479 result |= MDIO_EEE_10GT; 480 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv)) 481 result |= MDIO_EEE_1000KX; 482 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv)) 483 result |= MDIO_EEE_10GKX4; 484 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv)) 485 result |= MDIO_EEE_10GKR; 486 487 return result; 488 } 489 490 /** 491 * linkmode_to_mii_eee_cap2_t() 492 * @adv: the linkmode advertisement settings 493 * 494 * A function that translates linkmode to value for IEEE 802.3-2022 45.2.7.16 495 * "EEE advertisement 2" register (7.62) 496 */ 497 static inline u32 linkmode_to_mii_eee_cap2_t(unsigned long *adv) 498 { 499 u32 result = 0; 500 501 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, adv)) 502 result |= MDIO_EEE_2_5GT; 503 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, adv)) 504 result |= MDIO_EEE_5GT; 505 506 return result; 507 } 508 509 /** 510 * mii_10base_t1_adv_mod_linkmode_t() 511 * @adv: linkmode advertisement settings 512 * @val: register value 513 * 514 * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status" 515 * register (7.527) value to the linkmode. 516 */ 517 static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val) 518 { 519 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, 520 adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L); 521 } 522 523 /** 524 * linkmode_adv_to_mii_10base_t1_t() 525 * @adv: linkmode advertisement settings 526 * 527 * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25 528 * "10BASE-T1 AN control" register (7.526) value. 529 */ 530 static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv) 531 { 532 u32 result = 0; 533 534 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv)) 535 result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L; 536 537 return result; 538 } 539 540 /** 541 * mii_c73_mod_linkmode - convert a Clause 73 advertisement to linkmodes 542 * @adv: linkmode advertisement setting 543 * @lpa: array of three u16s containing the advertisement 544 * 545 * Convert an IEEE 802.3 Clause 73 advertisement to ethtool link modes. 546 */ 547 static inline void mii_c73_mod_linkmode(unsigned long *adv, u16 *lpa) 548 { 549 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, 550 adv, lpa[0] & MDIO_AN_C73_0_PAUSE); 551 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, 552 adv, lpa[0] & MDIO_AN_C73_0_ASM_DIR); 553 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 554 adv, lpa[1] & MDIO_AN_C73_1_1000BASE_KX); 555 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 556 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KX4); 557 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 558 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_KR4); 559 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 560 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_CR4); 561 /* 100GBASE_CR10 and 100GBASE_KP4 not implemented */ 562 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 563 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_KR4); 564 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 565 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_CR4); 566 /* 25GBASE_R_S not implemented */ 567 /* The 25GBASE_R bit can be used for 25Gbase KR or CR modes */ 568 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 569 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R); 570 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 571 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R); 572 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 573 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KR); 574 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT, 575 adv, lpa[2] & MDIO_AN_C73_2_2500BASE_KX); 576 /* 5GBASE_KR not implemented */ 577 } 578 579 int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); 580 int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); 581 int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, 582 u16 set); 583 int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, 584 u16 mask, u16 set); 585 586 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); 587 int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum); 588 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); 589 int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val); 590 int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, 591 u16 set); 592 int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, 593 u16 mask, u16 set); 594 int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum); 595 int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum); 596 int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad, 597 u32 regnum); 598 int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum, 599 u16 val); 600 int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum, 601 u16 val); 602 int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad, 603 u32 regnum, u16 val); 604 int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum, 605 u16 mask, u16 set); 606 607 int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad, 608 u32 regnum, u16 mask, u16 set); 609 610 static inline int __mdiodev_read(struct mdio_device *mdiodev, u32 regnum) 611 { 612 return __mdiobus_read(mdiodev->bus, mdiodev->addr, regnum); 613 } 614 615 static inline int __mdiodev_write(struct mdio_device *mdiodev, u32 regnum, 616 u16 val) 617 { 618 return __mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val); 619 } 620 621 static inline int __mdiodev_modify(struct mdio_device *mdiodev, u32 regnum, 622 u16 mask, u16 set) 623 { 624 return __mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set); 625 } 626 627 static inline int __mdiodev_modify_changed(struct mdio_device *mdiodev, 628 u32 regnum, u16 mask, u16 set) 629 { 630 return __mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum, 631 mask, set); 632 } 633 634 static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum) 635 { 636 return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum); 637 } 638 639 static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum, 640 u16 val) 641 { 642 return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val); 643 } 644 645 static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum, 646 u16 mask, u16 set) 647 { 648 return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set); 649 } 650 651 static inline int mdiodev_modify_changed(struct mdio_device *mdiodev, 652 u32 regnum, u16 mask, u16 set) 653 { 654 return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum, 655 mask, set); 656 } 657 658 static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad, 659 u32 regnum, u16 mask, u16 set) 660 { 661 return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum, 662 mask, set); 663 } 664 665 static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev, 666 int devad, u32 regnum, u16 mask, 667 u16 set) 668 { 669 return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad, 670 regnum, mask, set); 671 } 672 673 static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad, 674 u16 regnum) 675 { 676 return mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum); 677 } 678 679 static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad, 680 u16 regnum, u16 val) 681 { 682 return mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum, 683 val); 684 } 685 686 int mdiobus_register_device(struct mdio_device *mdiodev); 687 int mdiobus_unregister_device(struct mdio_device *mdiodev); 688 bool mdiobus_is_registered_device(struct mii_bus *bus, int addr); 689 struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr); 690 691 /** 692 * mdio_module_driver() - Helper macro for registering mdio drivers 693 * @_mdio_driver: driver to register 694 * 695 * Helper macro for MDIO drivers which do not do anything special in module 696 * init/exit. Each module may only use this macro once, and calling it 697 * replaces module_init() and module_exit(). 698 */ 699 #define mdio_module_driver(_mdio_driver) \ 700 static int __init mdio_module_init(void) \ 701 { \ 702 return mdio_driver_register(&_mdio_driver); \ 703 } \ 704 module_init(mdio_module_init); \ 705 static void __exit mdio_module_exit(void) \ 706 { \ 707 mdio_driver_unregister(&_mdio_driver); \ 708 } \ 709 module_exit(mdio_module_exit) 710 711 #endif /* __LINUX_MDIO_H__ */ 712