1 // SPDX-License-Identifier: GPL-2.0+
10  * phy_speed_to_str - Return a string representing the PHY link speed
55 		return "Unsupported (update phy-core.c)";  in phy_speed_to_str()
61  * phy_duplex_to_str - Return string describing the duplex
73 	return "Unsupported (update phy-core.c)";  in phy_duplex_to_str()
79  * - iow, descending speed. */
164 	PHY_SETTING(   1000, FULL,   1000baseKX_Full		),
165 	PHY_SETTING(   1000, FULL,   1000baseT_Full		),
166 	PHY_SETTING(   1000, HALF,   1000baseT_Half		),
167 	PHY_SETTING(   1000, FULL,   1000baseT1_Full		),
168 	PHY_SETTING(   1000, FULL,   1000baseX_Full		),
182  * phy_lookup_setting - lookup a PHY setting
205 		if (p->bit < __ETHTOOL_LINK_MODE_MASK_NBITS &&  in phy_lookup_setting()
206 		    test_bit(p->bit, mask)) {  in phy_lookup_setting()
208 			if (p->speed == speed && p->duplex == duplex) {  in phy_lookup_setting()
213 				if (!match && p->speed <= speed)  in phy_lookup_setting()
217 				if (p->speed < speed)  in phy_lookup_setting()
239 		    (count == 0 || speeds[count - 1] != settings[i].speed))  in phy_speeds()
251 		if (p->speed > max_speed)  in __set_linkmode_max_speed()
252 			linkmode_clear_bit(p->bit, addr);  in __set_linkmode_max_speed()
262 	return __set_linkmode_max_speed(max_speed, phydev->supported);  in __set_phy_supported()
266  * phy_set_max_speed - Set the maximum speed the PHY should support
291 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_supported()
300 	if (!of_property_read_u32(node, "max-speed", &max_speed))  in of_set_phy_supported()
306 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_eee_broken()
307 	u32 broken = 0;  in of_set_phy_eee_broken()  local
315 	if (of_property_read_bool(node, "eee-broken-100tx"))  in of_set_phy_eee_broken()
316 		broken |= MDIO_EEE_100TX;  in of_set_phy_eee_broken()
317 	if (of_property_read_bool(node, "eee-broken-1000t"))  in of_set_phy_eee_broken()
318 		broken |= MDIO_EEE_1000T;  in of_set_phy_eee_broken()
319 	if (of_property_read_bool(node, "eee-broken-10gt"))  in of_set_phy_eee_broken()
320 		broken |= MDIO_EEE_10GT;  in of_set_phy_eee_broken()
321 	if (of_property_read_bool(node, "eee-broken-1000kx"))  in of_set_phy_eee_broken()
322 		broken |= MDIO_EEE_1000KX;  in of_set_phy_eee_broken()
323 	if (of_property_read_bool(node, "eee-broken-10gkx4"))  in of_set_phy_eee_broken()
324 		broken |= MDIO_EEE_10GKX4;  in of_set_phy_eee_broken()
325 	if (of_property_read_bool(node, "eee-broken-10gkr"))  in of_set_phy_eee_broken()
326 		broken |= MDIO_EEE_10GKR;  in of_set_phy_eee_broken()
328 	phydev->eee_broken_modes = broken;  in of_set_phy_eee_broken()
332  * phy_resolve_aneg_pause - Determine pause autoneg results
343 	if (phydev->duplex == DUPLEX_FULL) {  in phy_resolve_aneg_pause()
344 		phydev->pause = linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,  in phy_resolve_aneg_pause()
345 						  phydev->lp_advertising);  in phy_resolve_aneg_pause()
346 		phydev->asym_pause = linkmode_test_bit(  in phy_resolve_aneg_pause()
348 			phydev->lp_advertising);  in phy_resolve_aneg_pause()
354  * phy_resolve_aneg_linkmode - resolve the advertisements into PHY settings
366 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_resolve_aneg_linkmode()
370 			phydev->speed = settings[i].speed;  in phy_resolve_aneg_linkmode()
371 			phydev->duplex = settings[i].duplex;  in phy_resolve_aneg_linkmode()
380  * phy_check_downshift - check whether downshift occurred
386  * read_status callback and sets phydev->speed to the actual link speed.
393 	phydev->downshifted_rate = 0;  in phy_check_downshift()
395 	if (phydev->autoneg == AUTONEG_DISABLE ||  in phy_check_downshift()
396 	    phydev->speed == SPEED_UNKNOWN)  in phy_check_downshift()
399 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_check_downshift()
407 	if (speed == SPEED_UNKNOWN || phydev->speed >= speed)  in phy_check_downshift()
411 		    phy_speed_to_str(speed), phy_speed_to_str(phydev->speed));  in phy_check_downshift()
413 	phydev->downshifted_rate = 1;  in phy_check_downshift()
422 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_resolve_min_speed()
424 	while (--i >= 0) {  in phy_resolve_min_speed()
440 		return -EINVAL;  in phy_speed_down_core()
442 	return __set_linkmode_max_speed(min_common_speed, phydev->advertising);  in phy_speed_down_core()
460  * __phy_read_mmd - Convenience function for reading a register
473 		return -EINVAL;  in __phy_read_mmd()
475 	if (phydev->drv && phydev->drv->read_mmd) {  in __phy_read_mmd()
476 		val = phydev->drv->read_mmd(phydev, devad, regnum);  in __phy_read_mmd()
477 	} else if (phydev->is_c45) {  in __phy_read_mmd()
478 		val = __mdiobus_c45_read(phydev->mdio.bus, phydev->mdio.addr,  in __phy_read_mmd()
481 		struct mii_bus *bus = phydev->mdio.bus;  in __phy_read_mmd()
482 		int phy_addr = phydev->mdio.addr;  in __phy_read_mmd()
494  * phy_read_mmd - Convenience function for reading a register
515  * __phy_write_mmd - Convenience function for writing a register
529 		return -EINVAL;  in __phy_write_mmd()
531 	if (phydev->drv && phydev->drv->write_mmd) {  in __phy_write_mmd()
532 		ret = phydev->drv->write_mmd(phydev, devad, regnum, val);  in __phy_write_mmd()
533 	} else if (phydev->is_c45) {  in __phy_write_mmd()
534 		ret = __mdiobus_c45_write(phydev->mdio.bus, phydev->mdio.addr,  in __phy_write_mmd()
537 		struct mii_bus *bus = phydev->mdio.bus;  in __phy_write_mmd()
538 		int phy_addr = phydev->mdio.addr;  in __phy_write_mmd()
552  * phy_write_mmd - Convenience function for writing a register
574  * phy_modify_changed - Function for modifying a PHY register
599  * __phy_modify - Convenience function for modifying a PHY register
620  * phy_modify - Convenience function for modifying a given PHY register
643  * __phy_modify_mmd_changed - Function for modifying a register on MMD
675  * phy_modify_mmd_changed - Function for modifying a register on MMD
702  * __phy_modify_mmd - Convenience function for modifying a register on MMD
725  * phy_modify_mmd - Convenience function for modifying a register on MMD
751 …if (WARN_ONCE(!phydev->drv->read_page, "read_page callback not available, PHY driver not loaded?\n…  in __phy_read_page()
752 		return -EOPNOTSUPP;  in __phy_read_page()
754 	return phydev->drv->read_page(phydev);  in __phy_read_page()
759 …if (WARN_ONCE(!phydev->drv->write_page, "write_page callback not available, PHY driver not loaded?…  in __phy_write_page()
760 		return -EOPNOTSUPP;  in __phy_write_page()
762 	return phydev->drv->write_page(phydev, page);  in __phy_write_page()
766  * phy_save_page() - take the bus lock and save the current page
781  * phy_select_page() - take the bus lock, save the current page, and set a page
810  * phy_restore_page() - restore the page register and release the bus lock
849  * phy_read_paged() - Convenience function for reading a paged register
869  * phy_write_paged() - Convenience function for writing a paged register
890  * phy_modify_paged_changed() - Function for modifying a paged register
913  * phy_modify_paged() - Convenience function for modifying a paged register