1 // SPDX-License-Identifier: GPL-2.0+
10  * phy_speed_to_str - Return a string representing the PHY link speed
23 		return "10Mbps";  in phy_speed_to_str()
33 		return "10Gbps";  in phy_speed_to_str()
57 		return "Unsupported (update phy-core.c)";  in phy_speed_to_str()
63  * phy_duplex_to_str - Return string describing the duplex
75 	return "Unsupported (update phy-core.c)";  in phy_duplex_to_str()
80  * phy_rate_matching_to_str - Return a string describing the rate matching
94 		return "open-loop";  in phy_rate_matching_to_str()
96 	return "Unsupported (update phy-core.c)";  in phy_rate_matching_to_str()
101  * phy_interface_num_ports - Return the number of links that can be carried by
102  *			     a given MAC-PHY physical link. Returns 0 if this is
157  * - iow, descending speed.
234 	/* 10G */
261 	/* 10M */
262 	PHY_SETTING(     10, FULL,     10baseT_Full		),
263 	PHY_SETTING(     10, HALF,     10baseT_Half		),
264 	PHY_SETTING(     10, FULL,     10baseT1L_Full		),
265 	PHY_SETTING(     10, FULL,     10baseT1S_Full		),
266 	PHY_SETTING(     10, HALF,     10baseT1S_Half		),
267 	PHY_SETTING(     10, HALF,     10baseT1S_P2MP_Half	),
272  * phy_lookup_setting - lookup a PHY setting
295 		if (p->bit < __ETHTOOL_LINK_MODE_MASK_NBITS &&  in phy_lookup_setting()
296 		    test_bit(p->bit, mask)) {  in phy_lookup_setting()
298 			if (p->speed == speed && p->duplex == duplex) {  in phy_lookup_setting()
303 				if (!match && p->speed <= speed)  in phy_lookup_setting()
307 				if (p->speed < speed)  in phy_lookup_setting()
329 		    (count == 0 || speeds[count - 1] != settings[i].speed))  in phy_speeds()
341 		if (p->speed > max_speed)  in __set_linkmode_max_speed()
342 			linkmode_clear_bit(p->bit, addr);  in __set_linkmode_max_speed()
350 	__set_linkmode_max_speed(max_speed, phydev->supported);  in __set_phy_supported()
354  * phy_set_max_speed - Set the maximum speed the PHY should support
373 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_supported()
382 	if (!of_property_read_u32(node, "max-speed", &max_speed))  in of_set_phy_supported()
388 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_eee_broken()
389 	u32 broken = 0;  in of_set_phy_eee_broken()  local
397 	if (of_property_read_bool(node, "eee-broken-100tx"))  in of_set_phy_eee_broken()
398 		broken |= MDIO_EEE_100TX;  in of_set_phy_eee_broken()
399 	if (of_property_read_bool(node, "eee-broken-1000t"))  in of_set_phy_eee_broken()
400 		broken |= MDIO_EEE_1000T;  in of_set_phy_eee_broken()
401 	if (of_property_read_bool(node, "eee-broken-10gt"))  in of_set_phy_eee_broken()
402 		broken |= MDIO_EEE_10GT;  in of_set_phy_eee_broken()
403 	if (of_property_read_bool(node, "eee-broken-1000kx"))  in of_set_phy_eee_broken()
404 		broken |= MDIO_EEE_1000KX;  in of_set_phy_eee_broken()
405 	if (of_property_read_bool(node, "eee-broken-10gkx4"))  in of_set_phy_eee_broken()
406 		broken |= MDIO_EEE_10GKX4;  in of_set_phy_eee_broken()
407 	if (of_property_read_bool(node, "eee-broken-10gkr"))  in of_set_phy_eee_broken()
408 		broken |= MDIO_EEE_10GKR;  in of_set_phy_eee_broken()
410 	phydev->eee_broken_modes = broken;  in of_set_phy_eee_broken()
414  * phy_resolve_aneg_pause - Determine pause autoneg results
425 	if (phydev->duplex == DUPLEX_FULL) {  in phy_resolve_aneg_pause()
426 		phydev->pause = linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,  in phy_resolve_aneg_pause()
427 						  phydev->lp_advertising);  in phy_resolve_aneg_pause()
428 		phydev->asym_pause = linkmode_test_bit(  in phy_resolve_aneg_pause()
430 			phydev->lp_advertising);  in phy_resolve_aneg_pause()
436  * phy_resolve_aneg_linkmode - resolve the advertisements into PHY settings
448 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_resolve_aneg_linkmode()
452 			phydev->speed = settings[i].speed;  in phy_resolve_aneg_linkmode()
453 			phydev->duplex = settings[i].duplex;  in phy_resolve_aneg_linkmode()
462  * phy_check_downshift - check whether downshift occurred
468  * read_status callback and sets phydev->speed to the actual link speed.
475 	phydev->downshifted_rate = 0;  in phy_check_downshift()
477 	if (phydev->autoneg == AUTONEG_DISABLE ||  in phy_check_downshift()
478 	    phydev->speed == SPEED_UNKNOWN)  in phy_check_downshift()
481 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_check_downshift()
489 	if (speed == SPEED_UNKNOWN || phydev->speed >= speed)  in phy_check_downshift()
493 		    phy_speed_to_str(speed), phy_speed_to_str(phydev->speed));  in phy_check_downshift()
495 	phydev->downshifted_rate = 1;  in phy_check_downshift()
504 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_resolve_min_speed()
506 	while (--i >= 0) {  in phy_resolve_min_speed()
522 		return -EINVAL;  in phy_speed_down_core()
524 	__set_linkmode_max_speed(min_common_speed, phydev->advertising);  in phy_speed_down_core()
566  * __phy_read_mmd - Convenience function for reading a register
577 		return -EINVAL;  in __phy_read_mmd()
579 	if (phydev->drv && phydev->drv->read_mmd)  in __phy_read_mmd()
580 		return phydev->drv->read_mmd(phydev, devad, regnum);  in __phy_read_mmd()
582 	return mmd_phy_read(phydev->mdio.bus, phydev->mdio.addr,  in __phy_read_mmd()
583 			    phydev->is_c45, devad, regnum);  in __phy_read_mmd()
588  * phy_read_mmd - Convenience function for reading a register
609  * __phy_write_mmd - Convenience function for writing a register
621 		return -EINVAL;  in __phy_write_mmd()
623 	if (phydev->drv && phydev->drv->write_mmd)  in __phy_write_mmd()
624 		return phydev->drv->write_mmd(phydev, devad, regnum, val);  in __phy_write_mmd()
626 	return mmd_phy_write(phydev->mdio.bus, phydev->mdio.addr,  in __phy_write_mmd()
627 			     phydev->is_c45, devad, regnum, val);  in __phy_write_mmd()
632  * phy_write_mmd - Convenience function for writing a register
654  * __phy_package_read_mmd - read MMD reg relative to PHY package base addr
678 		return -EINVAL;  in __phy_package_read_mmd()
680 	return mmd_phy_read(phydev->mdio.bus, addr, phydev->is_c45, devad,  in __phy_package_read_mmd()
686  * phy_package_read_mmd - read MMD reg relative to PHY package base addr
711 		return -EINVAL;  in phy_package_read_mmd()
714 	val = mmd_phy_read(phydev->mdio.bus, addr, phydev->is_c45, devad,  in phy_package_read_mmd()
723  * __phy_package_write_mmd - write MMD reg relative to PHY package base addr
748 		return -EINVAL;  in __phy_package_write_mmd()
750 	return mmd_phy_write(phydev->mdio.bus, addr, phydev->is_c45, devad,  in __phy_package_write_mmd()
756  * phy_package_write_mmd - write MMD reg relative to PHY package base addr
782 		return -EINVAL;  in phy_package_write_mmd()
785 	ret = mmd_phy_write(phydev->mdio.bus, addr, phydev->is_c45, devad,  in phy_package_write_mmd()
794  * phy_modify_changed - Function for modifying a PHY register
819  * __phy_modify - Convenience function for modifying a PHY register
840  * phy_modify - Convenience function for modifying a given PHY register
863  * __phy_modify_mmd_changed - Function for modifying a register on MMD
895  * phy_modify_mmd_changed - Function for modifying a register on MMD
922  * __phy_modify_mmd - Convenience function for modifying a register on MMD
945  * phy_modify_mmd - Convenience function for modifying a register on MMD
971 …if (WARN_ONCE(!phydev->drv->read_page, "read_page callback not available, PHY driver not loaded?\n…  in __phy_read_page()
972 		return -EOPNOTSUPP;  in __phy_read_page()
974 	return phydev->drv->read_page(phydev);  in __phy_read_page()
979 …if (WARN_ONCE(!phydev->drv->write_page, "write_page callback not available, PHY driver not loaded?…  in __phy_write_page()
980 		return -EOPNOTSUPP;  in __phy_write_page()
982 	return phydev->drv->write_page(phydev, page);  in __phy_write_page()
986  * phy_save_page() - take the bus lock and save the current page
1001  * phy_select_page() - take the bus lock, save the current page, and set a page
1030  * phy_restore_page() - restore the page register and release the bus lock
1069  * phy_read_paged() - Convenience function for reading a paged register
1089  * phy_write_paged() - Convenience function for writing a paged register
1110  * phy_modify_paged_changed() - Function for modifying a paged register
1133  * phy_modify_paged() - Convenience function for modifying a paged register