1 // SPDX-License-Identifier: GPL-2.0+
10  * phy_speed_to_str - Return a string representing the PHY link speed
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
158  * - iow, descending speed.
274  * phy_lookup_setting - lookup a PHY setting
297 		if (p->bit < __ETHTOOL_LINK_MODE_MASK_NBITS &&  in phy_lookup_setting()
298 		    test_bit(p->bit, mask)) {  in phy_lookup_setting()
300 			if (p->speed == speed && p->duplex == duplex) {  in phy_lookup_setting()
305 				if (!match && p->speed <= speed)  in phy_lookup_setting()
309 				if (p->speed < speed)  in phy_lookup_setting()
331 		    (count == 0 || speeds[count - 1] != settings[i].speed))  in phy_speeds()
343 		if (p->speed > max_speed)  in __set_linkmode_max_speed()
344 			linkmode_clear_bit(p->bit, addr);  in __set_linkmode_max_speed()
352 	__set_linkmode_max_speed(max_speed, phydev->supported);  in __set_phy_supported()
356  * phy_set_max_speed - Set the maximum speed the PHY should support
375 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_supported()
384 	if (!of_property_read_u32(node, "max-speed", &max_speed))  in of_set_phy_supported()
390 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_eee_broken()
391 	unsigned long *modes = phydev->eee_broken_modes;  in of_set_phy_eee_broken()
398 	if (of_property_read_bool(node, "eee-broken-100tx"))  in of_set_phy_eee_broken()
400 	if (of_property_read_bool(node, "eee-broken-1000t"))  in of_set_phy_eee_broken()
402 	if (of_property_read_bool(node, "eee-broken-10gt"))  in of_set_phy_eee_broken()
404 	if (of_property_read_bool(node, "eee-broken-1000kx"))  in of_set_phy_eee_broken()
406 	if (of_property_read_bool(node, "eee-broken-10gkx4"))  in of_set_phy_eee_broken()
408 	if (of_property_read_bool(node, "eee-broken-10gkr"))  in of_set_phy_eee_broken()
413  * of_set_phy_timing_role - Set the master/slave mode of the PHY
421 	struct device_node *node = phydev->mdio.dev.of_node;  in of_set_phy_timing_role()
430 	if (of_property_read_string(node, "timing-role", &master))  in of_set_phy_timing_role()
433 	if (strcmp(master, "forced-master") == 0)  in of_set_phy_timing_role()
434 		phydev->master_slave_set = MASTER_SLAVE_CFG_MASTER_FORCE;  in of_set_phy_timing_role()
435 	else if (strcmp(master, "forced-slave") == 0)  in of_set_phy_timing_role()
436 		phydev->master_slave_set = MASTER_SLAVE_CFG_SLAVE_FORCE;  in of_set_phy_timing_role()
437 	else if (strcmp(master, "preferred-master") == 0)  in of_set_phy_timing_role()
438 		phydev->master_slave_set = MASTER_SLAVE_CFG_MASTER_PREFERRED;  in of_set_phy_timing_role()
439 	else if (strcmp(master, "preferred-slave") == 0)  in of_set_phy_timing_role()
440 		phydev->master_slave_set = MASTER_SLAVE_CFG_SLAVE_PREFERRED;  in of_set_phy_timing_role()
442 		phydev_warn(phydev, "Unknown master-slave mode %s\n", master);  in of_set_phy_timing_role()
446  * phy_resolve_aneg_pause - Determine pause autoneg results
457 	if (phydev->duplex == DUPLEX_FULL) {  in phy_resolve_aneg_pause()
458 		phydev->pause = linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,  in phy_resolve_aneg_pause()
459 						  phydev->lp_advertising);  in phy_resolve_aneg_pause()
460 		phydev->asym_pause = linkmode_test_bit(  in phy_resolve_aneg_pause()
462 			phydev->lp_advertising);  in phy_resolve_aneg_pause()
468  * phy_resolve_aneg_linkmode - resolve the advertisements into PHY settings
477 	__ETHTOOL_DECLARE_LINK_MODE_MASK(common);  in phy_resolve_aneg_linkmode()
480 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_resolve_aneg_linkmode()
483 		if (test_bit(settings[i].bit, common)) {  in phy_resolve_aneg_linkmode()
484 			phydev->speed = settings[i].speed;  in phy_resolve_aneg_linkmode()
485 			phydev->duplex = settings[i].duplex;  in phy_resolve_aneg_linkmode()
494  * phy_check_downshift - check whether downshift occurred
500  * read_status callback and sets phydev->speed to the actual link speed.
504 	__ETHTOOL_DECLARE_LINK_MODE_MASK(common);  in phy_check_downshift()
507 	phydev->downshifted_rate = 0;  in phy_check_downshift()
509 	if (phydev->autoneg == AUTONEG_DISABLE ||  in phy_check_downshift()
510 	    phydev->speed == SPEED_UNKNOWN)  in phy_check_downshift()
513 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_check_downshift()
516 		if (test_bit(settings[i].bit, common)) {  in phy_check_downshift()
521 	if (speed == SPEED_UNKNOWN || phydev->speed >= speed)  in phy_check_downshift()
525 		    phy_speed_to_str(speed), phy_speed_to_str(phydev->speed));  in phy_check_downshift()
527 	phydev->downshifted_rate = 1;  in phy_check_downshift()
533 	__ETHTOOL_DECLARE_LINK_MODE_MASK(common);  in phy_resolve_min_speed()
536 	linkmode_and(common, phydev->lp_advertising, phydev->advertising);  in phy_resolve_min_speed()
538 	while (--i >= 0) {  in phy_resolve_min_speed()
539 		if (test_bit(settings[i].bit, common)) {  in phy_resolve_min_speed()
554 		return -EINVAL;  in phy_speed_down_core()
556 	__set_linkmode_max_speed(min_common_speed, phydev->advertising);  in phy_speed_down_core()
598  * __phy_read_mmd - Convenience function for reading a register
604  * Same rules as for __phy_read();
609 		return -EINVAL;  in __phy_read_mmd()
611 	if (phydev->drv && phydev->drv->read_mmd)  in __phy_read_mmd()
612 		return phydev->drv->read_mmd(phydev, devad, regnum);  in __phy_read_mmd()
614 	return mmd_phy_read(phydev->mdio.bus, phydev->mdio.addr,  in __phy_read_mmd()
615 			    phydev->is_c45, devad, regnum);  in __phy_read_mmd()
620  * phy_read_mmd - Convenience function for reading a register
626  * Same rules as for phy_read();
641  * __phy_write_mmd - Convenience function for writing a register
648  * Same rules as for __phy_write();
653 		return -EINVAL;  in __phy_write_mmd()
655 	if (phydev->drv && phydev->drv->write_mmd)  in __phy_write_mmd()
656 		return phydev->drv->write_mmd(phydev, devad, regnum, val);  in __phy_write_mmd()
658 	return mmd_phy_write(phydev->mdio.bus, phydev->mdio.addr,  in __phy_write_mmd()
659 			     phydev->is_c45, devad, regnum, val);  in __phy_write_mmd()
664  * phy_write_mmd - Convenience function for writing a register
671  * Same rules as for phy_write();
686  * __phy_package_read_mmd - read MMD reg relative to PHY package base addr
696  * Same calling rules as for __phy_read();
710 		return -EINVAL;  in __phy_package_read_mmd()
712 	return mmd_phy_read(phydev->mdio.bus, addr, phydev->is_c45, devad,  in __phy_package_read_mmd()
718  * phy_package_read_mmd - read MMD reg relative to PHY package base addr
728  * Same calling rules as for phy_read();
743 		return -EINVAL;  in phy_package_read_mmd()
746 	val = mmd_phy_read(phydev->mdio.bus, addr, phydev->is_c45, devad,  in phy_package_read_mmd()
755  * __phy_package_write_mmd - write MMD reg relative to PHY package base addr
766  * Same calling rules as for __phy_write();
780 		return -EINVAL;  in __phy_package_write_mmd()
782 	return mmd_phy_write(phydev->mdio.bus, addr, phydev->is_c45, devad,  in __phy_package_write_mmd()
788  * phy_package_write_mmd - write MMD reg relative to PHY package base addr
799  * Same calling rules as for phy_write();
814 		return -EINVAL;  in phy_package_write_mmd()
817 	ret = mmd_phy_write(phydev->mdio.bus, addr, phydev->is_c45, devad,  in phy_package_write_mmd()
826  * phy_modify_changed - Function for modifying a PHY register
851  * __phy_modify - Convenience function for modifying a PHY register
872  * phy_modify - Convenience function for modifying a given PHY register
895  * __phy_modify_mmd_changed - Function for modifying a register on MMD
927  * phy_modify_mmd_changed - Function for modifying a register on MMD
954  * __phy_modify_mmd - Convenience function for modifying a register on MMD
977  * phy_modify_mmd - Convenience function for modifying a register on MMD
1003 …if (WARN_ONCE(!phydev->drv->read_page, "read_page callback not available, PHY driver not loaded?\n…  in __phy_read_page()
1004 		return -EOPNOTSUPP;  in __phy_read_page()
1006 	return phydev->drv->read_page(phydev);  in __phy_read_page()
1011 …if (WARN_ONCE(!phydev->drv->write_page, "write_page callback not available, PHY driver not loaded?…  in __phy_write_page()
1012 		return -EOPNOTSUPP;  in __phy_write_page()
1014 	return phydev->drv->write_page(phydev, page);  in __phy_write_page()
1018  * phy_save_page() - take the bus lock and save the current page
1033  * phy_select_page() - take the bus lock, save the current page, and set a page
1062  * phy_restore_page() - restore the page register and release the bus lock
1101  * phy_read_paged() - Convenience function for reading a paged register
1106  * Same rules as for phy_read().
1121  * phy_write_paged() - Convenience function for writing a paged register
1127  * Same rules as for phy_write().
1142  * phy_modify_paged_changed() - Function for modifying a paged register
1165  * phy_modify_paged() - Convenience function for modifying a paged register
1172  * Same rules as for phy_read() and phy_write().