1452 lines
36 KiB
C
1452 lines
36 KiB
C
/* Framework for configuring and reading PHY devices
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* Based on code in sungem_phy.c and gianfar_phy.c
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*
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* Author: Andy Fleming
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*
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* Copyright (c) 2004 Freescale Semiconductor, Inc.
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* Copyright (c) 2006, 2007 Maciej W. Rozycki
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/unistd.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/phy.h>
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include <linux/mdio.h>
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#include <linux/io.h>
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#include <linux/uaccess.h>
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#include <linux/atomic.h>
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#include <asm/irq.h>
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static const char *phy_speed_to_str(int speed)
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{
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switch (speed) {
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case SPEED_10:
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return "10Mbps";
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case SPEED_100:
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return "100Mbps";
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case SPEED_1000:
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return "1Gbps";
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case SPEED_2500:
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return "2.5Gbps";
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case SPEED_10000:
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return "10Gbps";
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case SPEED_UNKNOWN:
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return "Unknown";
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default:
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return "Unsupported (update phy.c)";
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}
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}
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#define PHY_STATE_STR(_state) \
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case PHY_##_state: \
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return __stringify(_state); \
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static const char *phy_state_to_str(enum phy_state st)
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{
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switch (st) {
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PHY_STATE_STR(DOWN)
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PHY_STATE_STR(STARTING)
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PHY_STATE_STR(READY)
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PHY_STATE_STR(PENDING)
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PHY_STATE_STR(UP)
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PHY_STATE_STR(AN)
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PHY_STATE_STR(RUNNING)
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PHY_STATE_STR(NOLINK)
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PHY_STATE_STR(FORCING)
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PHY_STATE_STR(CHANGELINK)
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PHY_STATE_STR(HALTED)
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PHY_STATE_STR(RESUMING)
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}
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return NULL;
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}
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/**
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* phy_print_status - Convenience function to print out the current phy status
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* @phydev: the phy_device struct
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*/
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void phy_print_status(struct phy_device *phydev)
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{
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if (phydev->link) {
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netdev_info(phydev->attached_dev,
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"Link is Up - %s/%s - flow control %s\n",
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phy_speed_to_str(phydev->speed),
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DUPLEX_FULL == phydev->duplex ? "Full" : "Half",
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phydev->pause ? "rx/tx" : "off");
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} else {
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netdev_info(phydev->attached_dev, "Link is Down\n");
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}
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}
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EXPORT_SYMBOL(phy_print_status);
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/**
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* phy_clear_interrupt - Ack the phy device's interrupt
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* @phydev: the phy_device struct
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*
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* If the @phydev driver has an ack_interrupt function, call it to
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* ack and clear the phy device's interrupt.
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*
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* Returns 0 on success or < 0 on error.
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*/
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static int phy_clear_interrupt(struct phy_device *phydev)
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{
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if (phydev->drv->ack_interrupt)
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return phydev->drv->ack_interrupt(phydev);
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return 0;
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}
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/**
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* phy_config_interrupt - configure the PHY device for the requested interrupts
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* @phydev: the phy_device struct
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* @interrupts: interrupt flags to configure for this @phydev
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*
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* Returns 0 on success or < 0 on error.
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*/
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static int phy_config_interrupt(struct phy_device *phydev, u32 interrupts)
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{
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phydev->interrupts = interrupts;
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if (phydev->drv->config_intr)
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return phydev->drv->config_intr(phydev);
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return 0;
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}
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/**
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* phy_aneg_done - return auto-negotiation status
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* @phydev: target phy_device struct
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*
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* Description: Return the auto-negotiation status from this @phydev
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* Returns > 0 on success or < 0 on error. 0 means that auto-negotiation
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* is still pending.
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*/
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static inline int phy_aneg_done(struct phy_device *phydev)
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{
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if (phydev->drv->aneg_done)
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return phydev->drv->aneg_done(phydev);
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/* Avoid genphy_aneg_done() if the Clause 45 PHY does not
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* implement Clause 22 registers
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*/
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if (phydev->is_c45 && !(phydev->c45_ids.devices_in_package & BIT(0)))
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return -EINVAL;
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return genphy_aneg_done(phydev);
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}
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/* A structure for mapping a particular speed and duplex
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* combination to a particular SUPPORTED and ADVERTISED value
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*/
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struct phy_setting {
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int speed;
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int duplex;
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u32 setting;
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};
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/* A mapping of all SUPPORTED settings to speed/duplex */
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static const struct phy_setting settings[] = {
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{
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.speed = SPEED_10000,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_10000baseKR_Full,
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},
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{
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.speed = SPEED_10000,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_10000baseKX4_Full,
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},
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{
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.speed = SPEED_10000,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_10000baseT_Full,
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},
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{
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.speed = SPEED_2500,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_2500baseX_Full,
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},
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{
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.speed = SPEED_1000,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_1000baseKX_Full,
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},
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{
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.speed = SPEED_1000,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_1000baseT_Full,
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},
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{
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.speed = SPEED_1000,
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.duplex = DUPLEX_HALF,
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.setting = SUPPORTED_1000baseT_Half,
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},
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{
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.speed = SPEED_100,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_100baseT_Full,
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},
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{
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.speed = SPEED_100,
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.duplex = DUPLEX_HALF,
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.setting = SUPPORTED_100baseT_Half,
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},
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{
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.speed = SPEED_10,
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.duplex = DUPLEX_FULL,
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.setting = SUPPORTED_10baseT_Full,
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},
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{
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.speed = SPEED_10,
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.duplex = DUPLEX_HALF,
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.setting = SUPPORTED_10baseT_Half,
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},
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};
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#define MAX_NUM_SETTINGS ARRAY_SIZE(settings)
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/**
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* phy_find_setting - find a PHY settings array entry that matches speed & duplex
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* @speed: speed to match
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* @duplex: duplex to match
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*
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* Description: Searches the settings array for the setting which
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* matches the desired speed and duplex, and returns the index
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* of that setting. Returns the index of the last setting if
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* none of the others match.
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*/
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static inline unsigned int phy_find_setting(int speed, int duplex)
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{
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unsigned int idx = 0;
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while (idx < ARRAY_SIZE(settings) &&
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(settings[idx].speed != speed || settings[idx].duplex != duplex))
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idx++;
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return idx < MAX_NUM_SETTINGS ? idx : MAX_NUM_SETTINGS - 1;
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}
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/**
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* phy_find_valid - find a PHY setting that matches the requested features mask
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* @idx: The first index in settings[] to search
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* @features: A mask of the valid settings
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*
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* Description: Returns the index of the first valid setting less
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* than or equal to the one pointed to by idx, as determined by
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* the mask in features. Returns the index of the last setting
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* if nothing else matches.
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*/
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static inline unsigned int phy_find_valid(unsigned int idx, u32 features)
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{
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while (idx < MAX_NUM_SETTINGS && !(settings[idx].setting & features))
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idx++;
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return idx < MAX_NUM_SETTINGS ? idx : MAX_NUM_SETTINGS - 1;
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}
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/**
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* phy_check_valid - check if there is a valid PHY setting which matches
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* speed, duplex, and feature mask
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* @speed: speed to match
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* @duplex: duplex to match
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* @features: A mask of the valid settings
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*
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* Description: Returns true if there is a valid setting, false otherwise.
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*/
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static inline bool phy_check_valid(int speed, int duplex, u32 features)
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{
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unsigned int idx;
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idx = phy_find_valid(phy_find_setting(speed, duplex), features);
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return settings[idx].speed == speed && settings[idx].duplex == duplex &&
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(settings[idx].setting & features);
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}
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/**
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* phy_sanitize_settings - make sure the PHY is set to supported speed and duplex
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* @phydev: the target phy_device struct
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*
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* Description: Make sure the PHY is set to supported speeds and
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* duplexes. Drop down by one in this order: 1000/FULL,
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* 1000/HALF, 100/FULL, 100/HALF, 10/FULL, 10/HALF.
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*/
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static void phy_sanitize_settings(struct phy_device *phydev)
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{
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u32 features = phydev->supported;
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unsigned int idx;
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/* Sanitize settings based on PHY capabilities */
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if ((features & SUPPORTED_Autoneg) == 0)
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phydev->autoneg = AUTONEG_DISABLE;
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idx = phy_find_valid(phy_find_setting(phydev->speed, phydev->duplex),
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features);
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phydev->speed = settings[idx].speed;
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phydev->duplex = settings[idx].duplex;
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}
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/**
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* phy_ethtool_sset - generic ethtool sset function, handles all the details
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* @phydev: target phy_device struct
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* @cmd: ethtool_cmd
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*
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* A few notes about parameter checking:
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* - We don't set port or transceiver, so we don't care what they
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* were set to.
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* - phy_start_aneg() will make sure forced settings are sane, and
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* choose the next best ones from the ones selected, so we don't
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* care if ethtool tries to give us bad values.
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*/
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int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd)
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{
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u32 speed = ethtool_cmd_speed(cmd);
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if (cmd->phy_address != phydev->mdio.addr)
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return -EINVAL;
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/* We make sure that we don't pass unsupported values in to the PHY */
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cmd->advertising &= phydev->supported;
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/* Verify the settings we care about. */
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if (cmd->autoneg != AUTONEG_ENABLE && cmd->autoneg != AUTONEG_DISABLE)
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return -EINVAL;
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if (cmd->autoneg == AUTONEG_ENABLE && cmd->advertising == 0)
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return -EINVAL;
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if (cmd->autoneg == AUTONEG_DISABLE &&
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((speed != SPEED_1000 &&
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speed != SPEED_100 &&
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speed != SPEED_10) ||
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(cmd->duplex != DUPLEX_HALF &&
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cmd->duplex != DUPLEX_FULL)))
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return -EINVAL;
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phydev->autoneg = cmd->autoneg;
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phydev->speed = speed;
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phydev->advertising = cmd->advertising;
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if (AUTONEG_ENABLE == cmd->autoneg)
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phydev->advertising |= ADVERTISED_Autoneg;
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else
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phydev->advertising &= ~ADVERTISED_Autoneg;
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phydev->duplex = cmd->duplex;
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phydev->mdix = cmd->eth_tp_mdix_ctrl;
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/* Restart the PHY */
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phy_start_aneg(phydev);
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return 0;
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}
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EXPORT_SYMBOL(phy_ethtool_sset);
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int phy_ethtool_ksettings_set(struct phy_device *phydev,
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const struct ethtool_link_ksettings *cmd)
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{
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u8 autoneg = cmd->base.autoneg;
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u8 duplex = cmd->base.duplex;
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u32 speed = cmd->base.speed;
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u32 advertising;
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if (cmd->base.phy_address != phydev->mdio.addr)
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return -EINVAL;
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ethtool_convert_link_mode_to_legacy_u32(&advertising,
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cmd->link_modes.advertising);
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/* We make sure that we don't pass unsupported values in to the PHY */
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advertising &= phydev->supported;
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/* Verify the settings we care about. */
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if (autoneg != AUTONEG_ENABLE && autoneg != AUTONEG_DISABLE)
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return -EINVAL;
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if (autoneg == AUTONEG_ENABLE && advertising == 0)
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return -EINVAL;
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if (autoneg == AUTONEG_DISABLE &&
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((speed != SPEED_1000 &&
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speed != SPEED_100 &&
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speed != SPEED_10) ||
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(duplex != DUPLEX_HALF &&
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duplex != DUPLEX_FULL)))
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return -EINVAL;
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phydev->autoneg = autoneg;
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phydev->speed = speed;
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phydev->advertising = advertising;
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if (autoneg == AUTONEG_ENABLE)
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phydev->advertising |= ADVERTISED_Autoneg;
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else
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phydev->advertising &= ~ADVERTISED_Autoneg;
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phydev->duplex = duplex;
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phydev->mdix = cmd->base.eth_tp_mdix_ctrl;
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/* Restart the PHY */
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phy_start_aneg(phydev);
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return 0;
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}
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EXPORT_SYMBOL(phy_ethtool_ksettings_set);
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int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
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{
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cmd->supported = phydev->supported;
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cmd->advertising = phydev->advertising;
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cmd->lp_advertising = phydev->lp_advertising;
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ethtool_cmd_speed_set(cmd, phydev->speed);
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cmd->duplex = phydev->duplex;
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if (phydev->interface == PHY_INTERFACE_MODE_MOCA)
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cmd->port = PORT_BNC;
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else
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cmd->port = PORT_MII;
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cmd->phy_address = phydev->mdio.addr;
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cmd->transceiver = phy_is_internal(phydev) ?
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XCVR_INTERNAL : XCVR_EXTERNAL;
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cmd->autoneg = phydev->autoneg;
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cmd->eth_tp_mdix_ctrl = phydev->mdix;
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return 0;
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}
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EXPORT_SYMBOL(phy_ethtool_gset);
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int phy_ethtool_ksettings_get(struct phy_device *phydev,
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struct ethtool_link_ksettings *cmd)
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{
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ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
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phydev->supported);
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ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
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phydev->advertising);
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ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising,
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phydev->lp_advertising);
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cmd->base.speed = phydev->speed;
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cmd->base.duplex = phydev->duplex;
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if (phydev->interface == PHY_INTERFACE_MODE_MOCA)
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cmd->base.port = PORT_BNC;
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else
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cmd->base.port = PORT_MII;
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cmd->base.transceiver = phy_is_internal(phydev) ?
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XCVR_INTERNAL : XCVR_EXTERNAL;
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cmd->base.phy_address = phydev->mdio.addr;
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cmd->base.autoneg = phydev->autoneg;
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cmd->base.eth_tp_mdix_ctrl = phydev->mdix;
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return 0;
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}
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EXPORT_SYMBOL(phy_ethtool_ksettings_get);
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/**
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* phy_mii_ioctl - generic PHY MII ioctl interface
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* @phydev: the phy_device struct
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* @ifr: &struct ifreq for socket ioctl's
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* @cmd: ioctl cmd to execute
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*
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* Note that this function is currently incompatible with the
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* PHYCONTROL layer. It changes registers without regard to
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* current state. Use at own risk.
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*/
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int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
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{
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struct mii_ioctl_data *mii_data = if_mii(ifr);
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u16 val = mii_data->val_in;
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bool change_autoneg = false;
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switch (cmd) {
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case SIOCGMIIPHY:
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mii_data->phy_id = phydev->mdio.addr;
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/* fall through */
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case SIOCGMIIREG:
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mii_data->val_out = mdiobus_read(phydev->mdio.bus,
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mii_data->phy_id,
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mii_data->reg_num);
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return 0;
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case SIOCSMIIREG:
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if (mii_data->phy_id == phydev->mdio.addr) {
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switch (mii_data->reg_num) {
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case MII_BMCR:
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if ((val & (BMCR_RESET | BMCR_ANENABLE)) == 0) {
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if (phydev->autoneg == AUTONEG_ENABLE)
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change_autoneg = true;
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phydev->autoneg = AUTONEG_DISABLE;
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if (val & BMCR_FULLDPLX)
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phydev->duplex = DUPLEX_FULL;
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else
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phydev->duplex = DUPLEX_HALF;
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if (val & BMCR_SPEED1000)
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phydev->speed = SPEED_1000;
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else if (val & BMCR_SPEED100)
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phydev->speed = SPEED_100;
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else phydev->speed = SPEED_10;
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}
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|
else {
|
|
if (phydev->autoneg == AUTONEG_DISABLE)
|
|
change_autoneg = true;
|
|
phydev->autoneg = AUTONEG_ENABLE;
|
|
}
|
|
break;
|
|
case MII_ADVERTISE:
|
|
phydev->advertising = mii_adv_to_ethtool_adv_t(val);
|
|
change_autoneg = true;
|
|
break;
|
|
default:
|
|
/* do nothing */
|
|
break;
|
|
}
|
|
}
|
|
|
|
mdiobus_write(phydev->mdio.bus, mii_data->phy_id,
|
|
mii_data->reg_num, val);
|
|
|
|
if (mii_data->phy_id == phydev->mdio.addr &&
|
|
mii_data->reg_num == MII_BMCR &&
|
|
val & BMCR_RESET)
|
|
return phy_init_hw(phydev);
|
|
|
|
if (change_autoneg)
|
|
return phy_start_aneg(phydev);
|
|
|
|
return 0;
|
|
|
|
case SIOCSHWTSTAMP:
|
|
if (phydev->drv->hwtstamp)
|
|
return phydev->drv->hwtstamp(phydev, ifr);
|
|
/* fall through */
|
|
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(phy_mii_ioctl);
|
|
|
|
/**
|
|
* phy_start_aneg_priv - start auto-negotiation for this PHY device
|
|
* @phydev: the phy_device struct
|
|
* @sync: indicate whether we should wait for the workqueue cancelation
|
|
*
|
|
* Description: Sanitizes the settings (if we're not autonegotiating
|
|
* them), and then calls the driver's config_aneg function.
|
|
* If the PHYCONTROL Layer is operating, we change the state to
|
|
* reflect the beginning of Auto-negotiation or forcing.
|
|
*/
|
|
static int phy_start_aneg_priv(struct phy_device *phydev, bool sync)
|
|
{
|
|
bool trigger = 0;
|
|
int err;
|
|
|
|
mutex_lock(&phydev->lock);
|
|
|
|
if (AUTONEG_DISABLE == phydev->autoneg)
|
|
phy_sanitize_settings(phydev);
|
|
|
|
/* Invalidate LP advertising flags */
|
|
phydev->lp_advertising = 0;
|
|
|
|
err = phydev->drv->config_aneg(phydev);
|
|
if (err < 0)
|
|
goto out_unlock;
|
|
|
|
if (phydev->state != PHY_HALTED) {
|
|
if (AUTONEG_ENABLE == phydev->autoneg) {
|
|
phydev->state = PHY_AN;
|
|
phydev->link_timeout = PHY_AN_TIMEOUT;
|
|
} else {
|
|
phydev->state = PHY_FORCING;
|
|
phydev->link_timeout = PHY_FORCE_TIMEOUT;
|
|
}
|
|
}
|
|
|
|
/* Re-schedule a PHY state machine to check PHY status because
|
|
* negotiation may already be done and aneg interrupt may not be
|
|
* generated.
|
|
*/
|
|
if (phydev->irq != PHY_POLL && phydev->state == PHY_AN) {
|
|
err = phy_aneg_done(phydev);
|
|
if (err > 0) {
|
|
trigger = true;
|
|
err = 0;
|
|
}
|
|
}
|
|
|
|
out_unlock:
|
|
mutex_unlock(&phydev->lock);
|
|
|
|
if (trigger)
|
|
phy_trigger_machine(phydev, sync);
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* phy_start_aneg - start auto-negotiation for this PHY device
|
|
* @phydev: the phy_device struct
|
|
*
|
|
* Description: Sanitizes the settings (if we're not autonegotiating
|
|
* them), and then calls the driver's config_aneg function.
|
|
* If the PHYCONTROL Layer is operating, we change the state to
|
|
* reflect the beginning of Auto-negotiation or forcing.
|
|
*/
|
|
int phy_start_aneg(struct phy_device *phydev)
|
|
{
|
|
return phy_start_aneg_priv(phydev, true);
|
|
}
|
|
EXPORT_SYMBOL(phy_start_aneg);
|
|
|
|
/**
|
|
* phy_start_machine - start PHY state machine tracking
|
|
* @phydev: the phy_device struct
|
|
*
|
|
* Description: The PHY infrastructure can run a state machine
|
|
* which tracks whether the PHY is starting up, negotiating,
|
|
* etc. This function starts the timer which tracks the state
|
|
* of the PHY. If you want to maintain your own state machine,
|
|
* do not call this function.
|
|
*/
|
|
void phy_start_machine(struct phy_device *phydev)
|
|
{
|
|
queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, HZ);
|
|
}
|
|
EXPORT_SYMBOL(phy_start_machine);
|
|
|
|
/**
|
|
* phy_trigger_machine - trigger the state machine to run
|
|
*
|
|
* @phydev: the phy_device struct
|
|
* @sync: indicate whether we should wait for the workqueue cancelation
|
|
*
|
|
* Description: There has been a change in state which requires that the
|
|
* state machine runs.
|
|
*/
|
|
|
|
void phy_trigger_machine(struct phy_device *phydev, bool sync)
|
|
{
|
|
if (sync)
|
|
cancel_delayed_work_sync(&phydev->state_queue);
|
|
else
|
|
cancel_delayed_work(&phydev->state_queue);
|
|
queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, 0);
|
|
}
|
|
|
|
/**
|
|
* phy_stop_machine - stop the PHY state machine tracking
|
|
* @phydev: target phy_device struct
|
|
*
|
|
* Description: Stops the state machine timer, sets the state to UP
|
|
* (unless it wasn't up yet). This function must be called BEFORE
|
|
* phy_detach.
|
|
*/
|
|
void phy_stop_machine(struct phy_device *phydev)
|
|
{
|
|
cancel_delayed_work_sync(&phydev->state_queue);
|
|
|
|
mutex_lock(&phydev->lock);
|
|
if (phydev->state > PHY_UP && phydev->state != PHY_HALTED)
|
|
phydev->state = PHY_UP;
|
|
mutex_unlock(&phydev->lock);
|
|
}
|
|
|
|
/**
|
|
* phy_error - enter HALTED state for this PHY device
|
|
* @phydev: target phy_device struct
|
|
*
|
|
* Moves the PHY to the HALTED state in response to a read
|
|
* or write error, and tells the controller the link is down.
|
|
* Must not be called from interrupt context, or while the
|
|
* phydev->lock is held.
|
|
*/
|
|
static void phy_error(struct phy_device *phydev)
|
|
{
|
|
mutex_lock(&phydev->lock);
|
|
phydev->state = PHY_HALTED;
|
|
mutex_unlock(&phydev->lock);
|
|
|
|
phy_trigger_machine(phydev, false);
|
|
}
|
|
|
|
/**
|
|
* phy_interrupt - PHY interrupt handler
|
|
* @irq: interrupt line
|
|
* @phy_dat: phy_device pointer
|
|
*
|
|
* Description: When a PHY interrupt occurs, the handler disables
|
|
* interrupts, and schedules a work task to clear the interrupt.
|
|
*/
|
|
static irqreturn_t phy_interrupt(int irq, void *phy_dat)
|
|
{
|
|
struct phy_device *phydev = phy_dat;
|
|
|
|
if (PHY_HALTED == phydev->state)
|
|
return IRQ_NONE; /* It can't be ours. */
|
|
|
|
/* The MDIO bus is not allowed to be written in interrupt
|
|
* context, so we need to disable the irq here. A work
|
|
* queue will write the PHY to disable and clear the
|
|
* interrupt, and then reenable the irq line.
|
|
*/
|
|
disable_irq_nosync(irq);
|
|
atomic_inc(&phydev->irq_disable);
|
|
|
|
queue_work(system_power_efficient_wq, &phydev->phy_queue);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* phy_enable_interrupts - Enable the interrupts from the PHY side
|
|
* @phydev: target phy_device struct
|
|
*/
|
|
static int phy_enable_interrupts(struct phy_device *phydev)
|
|
{
|
|
int err = phy_clear_interrupt(phydev);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED);
|
|
}
|
|
|
|
/**
|
|
* phy_disable_interrupts - Disable the PHY interrupts from the PHY side
|
|
* @phydev: target phy_device struct
|
|
*/
|
|
static int phy_disable_interrupts(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
/* Disable PHY interrupts */
|
|
err = phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
|
|
if (err)
|
|
goto phy_err;
|
|
|
|
/* Clear the interrupt */
|
|
err = phy_clear_interrupt(phydev);
|
|
if (err)
|
|
goto phy_err;
|
|
|
|
return 0;
|
|
|
|
phy_err:
|
|
phy_error(phydev);
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* phy_start_interrupts - request and enable interrupts for a PHY device
|
|
* @phydev: target phy_device struct
|
|
*
|
|
* Description: Request the interrupt for the given PHY.
|
|
* If this fails, then we set irq to PHY_POLL.
|
|
* Otherwise, we enable the interrupts in the PHY.
|
|
* This should only be called with a valid IRQ number.
|
|
* Returns 0 on success or < 0 on error.
|
|
*/
|
|
int phy_start_interrupts(struct phy_device *phydev)
|
|
{
|
|
atomic_set(&phydev->irq_disable, 0);
|
|
if (request_irq(phydev->irq, phy_interrupt,
|
|
IRQF_TRIGGER_LOW,
|
|
"phy_interrupt",
|
|
phydev) < 0) {
|
|
pr_warn("%s: Can't get IRQ %d (PHY)\n",
|
|
phydev->mdio.bus->name, phydev->irq);
|
|
phydev->irq = PHY_POLL;
|
|
return 0;
|
|
}
|
|
|
|
return phy_enable_interrupts(phydev);
|
|
}
|
|
EXPORT_SYMBOL(phy_start_interrupts);
|
|
|
|
/**
|
|
* phy_stop_interrupts - disable interrupts from a PHY device
|
|
* @phydev: target phy_device struct
|
|
*/
|
|
int phy_stop_interrupts(struct phy_device *phydev)
|
|
{
|
|
int err = phy_disable_interrupts(phydev);
|
|
|
|
if (err)
|
|
phy_error(phydev);
|
|
|
|
free_irq(phydev->irq, phydev);
|
|
|
|
/* Cannot call flush_scheduled_work() here as desired because
|
|
* of rtnl_lock(), but we do not really care about what would
|
|
* be done, except from enable_irq(), so cancel any work
|
|
* possibly pending and take care of the matter below.
|
|
*/
|
|
cancel_work_sync(&phydev->phy_queue);
|
|
/* If work indeed has been cancelled, disable_irq() will have
|
|
* been left unbalanced from phy_interrupt() and enable_irq()
|
|
* has to be called so that other devices on the line work.
|
|
*/
|
|
while (atomic_dec_return(&phydev->irq_disable) >= 0)
|
|
enable_irq(phydev->irq);
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(phy_stop_interrupts);
|
|
|
|
/**
|
|
* phy_change - Scheduled by the phy_interrupt/timer to handle PHY changes
|
|
* @work: work_struct that describes the work to be done
|
|
*/
|
|
void phy_change(struct work_struct *work)
|
|
{
|
|
struct phy_device *phydev =
|
|
container_of(work, struct phy_device, phy_queue);
|
|
|
|
if (phy_interrupt_is_valid(phydev)) {
|
|
if (phydev->drv->did_interrupt &&
|
|
!phydev->drv->did_interrupt(phydev))
|
|
goto ignore;
|
|
|
|
if (phy_disable_interrupts(phydev))
|
|
goto phy_err;
|
|
}
|
|
|
|
mutex_lock(&phydev->lock);
|
|
if ((PHY_RUNNING == phydev->state) || (PHY_NOLINK == phydev->state))
|
|
phydev->state = PHY_CHANGELINK;
|
|
mutex_unlock(&phydev->lock);
|
|
|
|
if (phy_interrupt_is_valid(phydev)) {
|
|
atomic_dec(&phydev->irq_disable);
|
|
enable_irq(phydev->irq);
|
|
|
|
/* Reenable interrupts */
|
|
if (PHY_HALTED != phydev->state &&
|
|
phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED))
|
|
goto irq_enable_err;
|
|
}
|
|
|
|
/* reschedule state queue work to run as soon as possible */
|
|
phy_trigger_machine(phydev, true);
|
|
return;
|
|
|
|
ignore:
|
|
atomic_dec(&phydev->irq_disable);
|
|
enable_irq(phydev->irq);
|
|
return;
|
|
|
|
irq_enable_err:
|
|
disable_irq(phydev->irq);
|
|
atomic_inc(&phydev->irq_disable);
|
|
phy_err:
|
|
phy_error(phydev);
|
|
}
|
|
|
|
/**
|
|
* phy_stop - Bring down the PHY link, and stop checking the status
|
|
* @phydev: target phy_device struct
|
|
*/
|
|
void phy_stop(struct phy_device *phydev)
|
|
{
|
|
mutex_lock(&phydev->lock);
|
|
|
|
if (PHY_HALTED == phydev->state)
|
|
goto out_unlock;
|
|
|
|
if (phy_interrupt_is_valid(phydev)) {
|
|
/* Disable PHY Interrupts */
|
|
phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
|
|
|
|
/* Clear any pending interrupts */
|
|
phy_clear_interrupt(phydev);
|
|
}
|
|
|
|
phydev->state = PHY_HALTED;
|
|
|
|
out_unlock:
|
|
mutex_unlock(&phydev->lock);
|
|
|
|
/* Cannot call flush_scheduled_work() here as desired because
|
|
* of rtnl_lock(), but PHY_HALTED shall guarantee phy_change()
|
|
* will not reenable interrupts.
|
|
*/
|
|
}
|
|
EXPORT_SYMBOL(phy_stop);
|
|
|
|
/**
|
|
* phy_start - start or restart a PHY device
|
|
* @phydev: target phy_device struct
|
|
*
|
|
* Description: Indicates the attached device's readiness to
|
|
* handle PHY-related work. Used during startup to start the
|
|
* PHY, and after a call to phy_stop() to resume operation.
|
|
* Also used to indicate the MDIO bus has cleared an error
|
|
* condition.
|
|
*/
|
|
void phy_start(struct phy_device *phydev)
|
|
{
|
|
bool do_resume = false;
|
|
int err = 0;
|
|
|
|
mutex_lock(&phydev->lock);
|
|
|
|
switch (phydev->state) {
|
|
case PHY_STARTING:
|
|
phydev->state = PHY_PENDING;
|
|
break;
|
|
case PHY_READY:
|
|
phydev->state = PHY_UP;
|
|
break;
|
|
case PHY_HALTED:
|
|
/* make sure interrupts are re-enabled for the PHY */
|
|
if (phy_interrupt_is_valid(phydev)) {
|
|
err = phy_enable_interrupts(phydev);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
|
|
phydev->state = PHY_RESUMING;
|
|
do_resume = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
mutex_unlock(&phydev->lock);
|
|
|
|
/* if phy was suspended, bring the physical link up again */
|
|
if (do_resume)
|
|
phy_resume(phydev);
|
|
|
|
phy_trigger_machine(phydev, true);
|
|
}
|
|
EXPORT_SYMBOL(phy_start);
|
|
|
|
/**
|
|
* phy_state_machine - Handle the state machine
|
|
* @work: work_struct that describes the work to be done
|
|
*/
|
|
void phy_state_machine(struct work_struct *work)
|
|
{
|
|
struct delayed_work *dwork = to_delayed_work(work);
|
|
struct phy_device *phydev =
|
|
container_of(dwork, struct phy_device, state_queue);
|
|
bool needs_aneg = false, do_suspend = false;
|
|
enum phy_state old_state;
|
|
int err = 0;
|
|
int old_link;
|
|
|
|
mutex_lock(&phydev->lock);
|
|
|
|
old_state = phydev->state;
|
|
|
|
if (phydev->drv->link_change_notify)
|
|
phydev->drv->link_change_notify(phydev);
|
|
|
|
switch (phydev->state) {
|
|
case PHY_DOWN:
|
|
case PHY_STARTING:
|
|
case PHY_READY:
|
|
case PHY_PENDING:
|
|
break;
|
|
case PHY_UP:
|
|
needs_aneg = true;
|
|
|
|
phydev->link_timeout = PHY_AN_TIMEOUT;
|
|
|
|
break;
|
|
case PHY_AN:
|
|
err = phy_read_status(phydev);
|
|
if (err < 0)
|
|
break;
|
|
|
|
/* If the link is down, give up on negotiation for now */
|
|
if (!phydev->link) {
|
|
phydev->state = PHY_NOLINK;
|
|
netif_carrier_off(phydev->attached_dev);
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
break;
|
|
}
|
|
|
|
/* Check if negotiation is done. Break if there's an error */
|
|
err = phy_aneg_done(phydev);
|
|
if (err < 0)
|
|
break;
|
|
|
|
/* If AN is done, we're running */
|
|
if (err > 0) {
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
|
|
} else if (0 == phydev->link_timeout--)
|
|
needs_aneg = true;
|
|
break;
|
|
case PHY_NOLINK:
|
|
if (phy_interrupt_is_valid(phydev))
|
|
break;
|
|
|
|
err = phy_read_status(phydev);
|
|
if (err)
|
|
break;
|
|
|
|
if (phydev->link) {
|
|
if (AUTONEG_ENABLE == phydev->autoneg) {
|
|
err = phy_aneg_done(phydev);
|
|
if (err < 0)
|
|
break;
|
|
|
|
if (!err) {
|
|
phydev->state = PHY_AN;
|
|
phydev->link_timeout = PHY_AN_TIMEOUT;
|
|
break;
|
|
}
|
|
}
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
}
|
|
break;
|
|
case PHY_FORCING:
|
|
err = genphy_update_link(phydev);
|
|
if (err)
|
|
break;
|
|
|
|
if (phydev->link) {
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
} else {
|
|
if (0 == phydev->link_timeout--)
|
|
needs_aneg = true;
|
|
}
|
|
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
break;
|
|
case PHY_RUNNING:
|
|
/* Only register a CHANGE if we are polling and link changed
|
|
* since latest checking.
|
|
*/
|
|
if (phydev->irq == PHY_POLL) {
|
|
old_link = phydev->link;
|
|
err = phy_read_status(phydev);
|
|
if (err)
|
|
break;
|
|
|
|
if (old_link != phydev->link)
|
|
phydev->state = PHY_CHANGELINK;
|
|
}
|
|
/*
|
|
* Failsafe: check that nobody set phydev->link=0 between two
|
|
* poll cycles, otherwise we won't leave RUNNING state as long
|
|
* as link remains down.
|
|
*/
|
|
if (!phydev->link && phydev->state == PHY_RUNNING) {
|
|
phydev->state = PHY_CHANGELINK;
|
|
phydev_err(phydev, "no link in PHY_RUNNING\n");
|
|
}
|
|
break;
|
|
case PHY_CHANGELINK:
|
|
err = phy_read_status(phydev);
|
|
if (err)
|
|
break;
|
|
|
|
if (phydev->link) {
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
} else {
|
|
phydev->state = PHY_NOLINK;
|
|
netif_carrier_off(phydev->attached_dev);
|
|
}
|
|
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
|
|
if (phy_interrupt_is_valid(phydev))
|
|
err = phy_config_interrupt(phydev,
|
|
PHY_INTERRUPT_ENABLED);
|
|
break;
|
|
case PHY_HALTED:
|
|
if (phydev->link) {
|
|
phydev->link = 0;
|
|
netif_carrier_off(phydev->attached_dev);
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
do_suspend = true;
|
|
}
|
|
break;
|
|
case PHY_RESUMING:
|
|
if (AUTONEG_ENABLE == phydev->autoneg) {
|
|
err = phy_aneg_done(phydev);
|
|
if (err < 0)
|
|
break;
|
|
|
|
/* err > 0 if AN is done.
|
|
* Otherwise, it's 0, and we're still waiting for AN
|
|
*/
|
|
if (err > 0) {
|
|
err = phy_read_status(phydev);
|
|
if (err)
|
|
break;
|
|
|
|
if (phydev->link) {
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
} else {
|
|
phydev->state = PHY_NOLINK;
|
|
}
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
} else {
|
|
phydev->state = PHY_AN;
|
|
phydev->link_timeout = PHY_AN_TIMEOUT;
|
|
}
|
|
} else {
|
|
err = phy_read_status(phydev);
|
|
if (err)
|
|
break;
|
|
|
|
if (phydev->link) {
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
} else {
|
|
phydev->state = PHY_NOLINK;
|
|
}
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
}
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&phydev->lock);
|
|
|
|
if (needs_aneg)
|
|
err = phy_start_aneg_priv(phydev, false);
|
|
else if (do_suspend)
|
|
phy_suspend(phydev);
|
|
|
|
if (err < 0)
|
|
phy_error(phydev);
|
|
|
|
phydev_dbg(phydev, "PHY state change %s -> %s\n",
|
|
phy_state_to_str(old_state),
|
|
phy_state_to_str(phydev->state));
|
|
|
|
/* Only re-schedule a PHY state machine change if we are polling the
|
|
* PHY, if PHY_IGNORE_INTERRUPT is set, then we will be moving
|
|
* between states from phy_mac_interrupt()
|
|
*/
|
|
if (phydev->irq == PHY_POLL)
|
|
queue_delayed_work(system_power_efficient_wq, &phydev->state_queue,
|
|
PHY_STATE_TIME * HZ);
|
|
}
|
|
|
|
void phy_mac_interrupt(struct phy_device *phydev, int new_link)
|
|
{
|
|
phydev->link = new_link;
|
|
|
|
/* Trigger a state machine change */
|
|
queue_work(system_power_efficient_wq, &phydev->phy_queue);
|
|
}
|
|
EXPORT_SYMBOL(phy_mac_interrupt);
|
|
|
|
static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
|
|
int addr)
|
|
{
|
|
/* Write the desired MMD Devad */
|
|
bus->write(bus, addr, MII_MMD_CTRL, devad);
|
|
|
|
/* Write the desired MMD register address */
|
|
bus->write(bus, addr, MII_MMD_DATA, prtad);
|
|
|
|
/* Select the Function : DATA with no post increment */
|
|
bus->write(bus, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
|
|
}
|
|
|
|
/**
|
|
* phy_read_mmd_indirect - reads data from the MMD registers
|
|
* @phydev: The PHY device bus
|
|
* @prtad: MMD Address
|
|
* @devad: MMD DEVAD
|
|
*
|
|
* Description: it reads data from the MMD registers (clause 22 to access to
|
|
* clause 45) of the specified phy address.
|
|
* To read these register we have:
|
|
* 1) Write reg 13 // DEVAD
|
|
* 2) Write reg 14 // MMD Address
|
|
* 3) Write reg 13 // MMD Data Command for MMD DEVAD
|
|
* 3) Read reg 14 // Read MMD data
|
|
*/
|
|
int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad)
|
|
{
|
|
struct phy_driver *phydrv = phydev->drv;
|
|
int addr = phydev->mdio.addr;
|
|
int value = -1;
|
|
|
|
if (!phydrv->read_mmd_indirect) {
|
|
struct mii_bus *bus = phydev->mdio.bus;
|
|
|
|
mutex_lock(&bus->mdio_lock);
|
|
mmd_phy_indirect(bus, prtad, devad, addr);
|
|
|
|
/* Read the content of the MMD's selected register */
|
|
value = bus->read(bus, addr, MII_MMD_DATA);
|
|
mutex_unlock(&bus->mdio_lock);
|
|
} else {
|
|
value = phydrv->read_mmd_indirect(phydev, prtad, devad, addr);
|
|
}
|
|
return value;
|
|
}
|
|
EXPORT_SYMBOL(phy_read_mmd_indirect);
|
|
|
|
/**
|
|
* phy_write_mmd_indirect - writes data to the MMD registers
|
|
* @phydev: The PHY device
|
|
* @prtad: MMD Address
|
|
* @devad: MMD DEVAD
|
|
* @data: data to write in the MMD register
|
|
*
|
|
* Description: Write data from the MMD registers of the specified
|
|
* phy address.
|
|
* To write these register we have:
|
|
* 1) Write reg 13 // DEVAD
|
|
* 2) Write reg 14 // MMD Address
|
|
* 3) Write reg 13 // MMD Data Command for MMD DEVAD
|
|
* 3) Write reg 14 // Write MMD data
|
|
*/
|
|
void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
|
|
int devad, u32 data)
|
|
{
|
|
struct phy_driver *phydrv = phydev->drv;
|
|
int addr = phydev->mdio.addr;
|
|
|
|
if (!phydrv->write_mmd_indirect) {
|
|
struct mii_bus *bus = phydev->mdio.bus;
|
|
|
|
mutex_lock(&bus->mdio_lock);
|
|
mmd_phy_indirect(bus, prtad, devad, addr);
|
|
|
|
/* Write the data into MMD's selected register */
|
|
bus->write(bus, addr, MII_MMD_DATA, data);
|
|
mutex_unlock(&bus->mdio_lock);
|
|
} else {
|
|
phydrv->write_mmd_indirect(phydev, prtad, devad, addr, data);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(phy_write_mmd_indirect);
|
|
|
|
/**
|
|
* phy_init_eee - init and check the EEE feature
|
|
* @phydev: target phy_device struct
|
|
* @clk_stop_enable: PHY may stop the clock during LPI
|
|
*
|
|
* Description: it checks if the Energy-Efficient Ethernet (EEE)
|
|
* is supported by looking at the MMD registers 3.20 and 7.60/61
|
|
* and it programs the MMD register 3.0 setting the "Clock stop enable"
|
|
* bit if required.
|
|
*/
|
|
int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
|
|
{
|
|
/* According to 802.3az,the EEE is supported only in full duplex-mode.
|
|
* Also EEE feature is active when core is operating with MII, GMII
|
|
* or RGMII (all kinds). Internal PHYs are also allowed to proceed and
|
|
* should return an error if they do not support EEE.
|
|
*/
|
|
if ((phydev->duplex == DUPLEX_FULL) &&
|
|
((phydev->interface == PHY_INTERFACE_MODE_MII) ||
|
|
(phydev->interface == PHY_INTERFACE_MODE_GMII) ||
|
|
phy_interface_is_rgmii(phydev) ||
|
|
phy_is_internal(phydev))) {
|
|
int eee_lp, eee_cap, eee_adv;
|
|
u32 lp, cap, adv;
|
|
int status;
|
|
|
|
/* Read phy status to properly get the right settings */
|
|
status = phy_read_status(phydev);
|
|
if (status)
|
|
return status;
|
|
|
|
/* First check if the EEE ability is supported */
|
|
eee_cap = phy_read_mmd_indirect(phydev, MDIO_PCS_EEE_ABLE,
|
|
MDIO_MMD_PCS);
|
|
if (eee_cap <= 0)
|
|
goto eee_exit_err;
|
|
|
|
cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
|
|
if (!cap)
|
|
goto eee_exit_err;
|
|
|
|
/* Check which link settings negotiated and verify it in
|
|
* the EEE advertising registers.
|
|
*/
|
|
eee_lp = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_LPABLE,
|
|
MDIO_MMD_AN);
|
|
if (eee_lp <= 0)
|
|
goto eee_exit_err;
|
|
|
|
eee_adv = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_ADV,
|
|
MDIO_MMD_AN);
|
|
if (eee_adv <= 0)
|
|
goto eee_exit_err;
|
|
|
|
adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
|
|
lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
|
|
if (!phy_check_valid(phydev->speed, phydev->duplex, lp & adv))
|
|
goto eee_exit_err;
|
|
|
|
if (clk_stop_enable) {
|
|
/* Configure the PHY to stop receiving xMII
|
|
* clock while it is signaling LPI.
|
|
*/
|
|
int val = phy_read_mmd_indirect(phydev, MDIO_CTRL1,
|
|
MDIO_MMD_PCS);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
val |= MDIO_PCS_CTRL1_CLKSTOP_EN;
|
|
phy_write_mmd_indirect(phydev, MDIO_CTRL1,
|
|
MDIO_MMD_PCS, val);
|
|
}
|
|
|
|
return 0; /* EEE supported */
|
|
}
|
|
eee_exit_err:
|
|
return -EPROTONOSUPPORT;
|
|
}
|
|
EXPORT_SYMBOL(phy_init_eee);
|
|
|
|
/**
|
|
* phy_get_eee_err - report the EEE wake error count
|
|
* @phydev: target phy_device struct
|
|
*
|
|
* Description: it is to report the number of time where the PHY
|
|
* failed to complete its normal wake sequence.
|
|
*/
|
|
int phy_get_eee_err(struct phy_device *phydev)
|
|
{
|
|
return phy_read_mmd_indirect(phydev, MDIO_PCS_EEE_WK_ERR, MDIO_MMD_PCS);
|
|
}
|
|
EXPORT_SYMBOL(phy_get_eee_err);
|
|
|
|
/**
|
|
* phy_ethtool_get_eee - get EEE supported and status
|
|
* @phydev: target phy_device struct
|
|
* @data: ethtool_eee data
|
|
*
|
|
* Description: it reportes the Supported/Advertisement/LP Advertisement
|
|
* capabilities.
|
|
*/
|
|
int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data)
|
|
{
|
|
int val;
|
|
|
|
/* Get Supported EEE */
|
|
val = phy_read_mmd_indirect(phydev, MDIO_PCS_EEE_ABLE, MDIO_MMD_PCS);
|
|
if (val < 0)
|
|
return val;
|
|
data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
|
|
|
|
/* Get advertisement EEE */
|
|
val = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN);
|
|
if (val < 0)
|
|
return val;
|
|
data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
|
|
|
|
/* Get LP advertisement EEE */
|
|
val = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_LPABLE, MDIO_MMD_AN);
|
|
if (val < 0)
|
|
return val;
|
|
data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_get_eee);
|
|
|
|
/**
|
|
* phy_ethtool_set_eee - set EEE supported and status
|
|
* @phydev: target phy_device struct
|
|
* @data: ethtool_eee data
|
|
*
|
|
* Description: it is to program the Advertisement EEE register.
|
|
*/
|
|
int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
|
|
{
|
|
int val = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
|
|
|
|
/* Mask prohibited EEE modes */
|
|
val &= ~phydev->eee_broken_modes;
|
|
|
|
phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, val);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_set_eee);
|
|
|
|
int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
|
|
{
|
|
if (phydev->drv->set_wol)
|
|
return phydev->drv->set_wol(phydev, wol);
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_set_wol);
|
|
|
|
void phy_ethtool_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
|
|
{
|
|
if (phydev->drv->get_wol)
|
|
phydev->drv->get_wol(phydev, wol);
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_get_wol);
|
|
|
|
int phy_ethtool_get_link_ksettings(struct net_device *ndev,
|
|
struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct phy_device *phydev = ndev->phydev;
|
|
|
|
if (!phydev)
|
|
return -ENODEV;
|
|
|
|
return phy_ethtool_ksettings_get(phydev, cmd);
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_get_link_ksettings);
|
|
|
|
int phy_ethtool_set_link_ksettings(struct net_device *ndev,
|
|
const struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct phy_device *phydev = ndev->phydev;
|
|
|
|
if (!phydev)
|
|
return -ENODEV;
|
|
|
|
return phy_ethtool_ksettings_set(phydev, cmd);
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_set_link_ksettings);
|