Andrew Lunn | a2443fd | 2019-01-21 19:05:50 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 2 | /* Framework for configuring and reading PHY devices |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 3 | * Based on code in sungem_phy.c and gianfar_phy.c |
| 4 | * |
| 5 | * Author: Andy Fleming |
| 6 | * |
| 7 | * Copyright (c) 2004 Freescale Semiconductor, Inc. |
Maciej W. Rozycki | 0ac4952 | 2007-09-28 22:42:14 -0700 | [diff] [blame] | 8 | * Copyright (c) 2006, 2007 Maciej W. Rozycki |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 9 | */ |
Joe Perches | 8d24248 | 2012-06-09 07:49:07 +0000 | [diff] [blame] | 10 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 11 | #include <linux/kernel.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 12 | #include <linux/string.h> |
| 13 | #include <linux/errno.h> |
| 14 | #include <linux/unistd.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 15 | #include <linux/interrupt.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 16 | #include <linux/delay.h> |
| 17 | #include <linux/netdevice.h> |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 18 | #include <linux/netlink.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 19 | #include <linux/etherdevice.h> |
| 20 | #include <linux/skbuff.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 21 | #include <linux/mm.h> |
| 22 | #include <linux/module.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 23 | #include <linux/mii.h> |
| 24 | #include <linux/ethtool.h> |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 25 | #include <linux/ethtool_netlink.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 26 | #include <linux/phy.h> |
Geert Uytterhoeven | d6f8cfa | 2017-01-25 11:39:49 +0100 | [diff] [blame] | 27 | #include <linux/phy_led_triggers.h> |
Russell King | 298e54f | 2019-11-15 19:56:51 +0000 | [diff] [blame] | 28 | #include <linux/sfp.h> |
Maciej W. Rozycki | 3c3070d7 | 2006-10-03 16:18:35 +0100 | [diff] [blame] | 29 | #include <linux/workqueue.h> |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 30 | #include <linux/mdio.h> |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 31 | #include <linux/io.h> |
| 32 | #include <linux/uaccess.h> |
Arun Sharma | 60063497 | 2011-07-26 16:09:06 -0700 | [diff] [blame] | 33 | #include <linux/atomic.h> |
Lukas Wunner | 1758bde | 2022-06-28 12:15:08 +0200 | [diff] [blame] | 34 | #include <linux/suspend.h> |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 35 | #include <net/netlink.h> |
| 36 | #include <net/genetlink.h> |
| 37 | #include <net/sock.h> |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 38 | |
Heiner Kallweit | 97b33bd | 2019-05-30 15:11:06 +0200 | [diff] [blame] | 39 | #define PHY_STATE_TIME HZ |
| 40 | |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 41 | #define PHY_STATE_STR(_state) \ |
| 42 | case PHY_##_state: \ |
| 43 | return __stringify(_state); \ |
| 44 | |
| 45 | static const char *phy_state_to_str(enum phy_state st) |
| 46 | { |
| 47 | switch (st) { |
| 48 | PHY_STATE_STR(DOWN) |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 49 | PHY_STATE_STR(READY) |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 50 | PHY_STATE_STR(UP) |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 51 | PHY_STATE_STR(RUNNING) |
| 52 | PHY_STATE_STR(NOLINK) |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 53 | PHY_STATE_STR(CABLETEST) |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 54 | PHY_STATE_STR(HALTED) |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | return NULL; |
| 58 | } |
| 59 | |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 60 | static void phy_link_up(struct phy_device *phydev) |
| 61 | { |
Doug Berger | a307593 | 2020-05-18 15:23:59 -0700 | [diff] [blame] | 62 | phydev->phy_link_change(phydev, true); |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 63 | phy_led_trigger_change_speed(phydev); |
| 64 | } |
| 65 | |
Doug Berger | a307593 | 2020-05-18 15:23:59 -0700 | [diff] [blame] | 66 | static void phy_link_down(struct phy_device *phydev) |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 67 | { |
Doug Berger | a307593 | 2020-05-18 15:23:59 -0700 | [diff] [blame] | 68 | phydev->phy_link_change(phydev, false); |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 69 | phy_led_trigger_change_speed(phydev); |
| 70 | } |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 71 | |
Heiner Kallweit | 23bfaa5 | 2019-05-05 19:03:51 +0200 | [diff] [blame] | 72 | static const char *phy_pause_str(struct phy_device *phydev) |
| 73 | { |
| 74 | bool local_pause, local_asym_pause; |
| 75 | |
| 76 | if (phydev->autoneg == AUTONEG_DISABLE) |
| 77 | goto no_pause; |
| 78 | |
| 79 | local_pause = linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, |
| 80 | phydev->advertising); |
| 81 | local_asym_pause = linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, |
| 82 | phydev->advertising); |
| 83 | |
| 84 | if (local_pause && phydev->pause) |
| 85 | return "rx/tx"; |
| 86 | |
| 87 | if (local_asym_pause && phydev->asym_pause) { |
| 88 | if (local_pause) |
| 89 | return "rx"; |
| 90 | if (phydev->pause) |
| 91 | return "tx"; |
| 92 | } |
| 93 | |
| 94 | no_pause: |
| 95 | return "off"; |
| 96 | } |
| 97 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 98 | /** |
| 99 | * phy_print_status - Convenience function to print out the current phy status |
| 100 | * @phydev: the phy_device struct |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 101 | */ |
| 102 | void phy_print_status(struct phy_device *phydev) |
| 103 | { |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 104 | if (phydev->link) { |
Florian Fainelli | df40cc88 | 2014-02-11 17:27:34 -0800 | [diff] [blame] | 105 | netdev_info(phydev->attached_dev, |
Heiner Kallweit | 5eee3bb | 2020-03-20 17:51:38 +0100 | [diff] [blame] | 106 | "Link is Up - %s/%s %s- flow control %s\n", |
Florian Fainelli | 766d1d3 | 2014-02-11 17:27:35 -0800 | [diff] [blame] | 107 | phy_speed_to_str(phydev->speed), |
Russell King | da4625a | 2017-07-25 15:02:42 +0100 | [diff] [blame] | 108 | phy_duplex_to_str(phydev->duplex), |
Heiner Kallweit | 5eee3bb | 2020-03-20 17:51:38 +0100 | [diff] [blame] | 109 | phydev->downshifted_rate ? "(downshifted) " : "", |
Heiner Kallweit | 23bfaa5 | 2019-05-05 19:03:51 +0200 | [diff] [blame] | 110 | phy_pause_str(phydev)); |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 111 | } else { |
Florian Fainelli | 43b6329 | 2014-02-11 17:27:33 -0800 | [diff] [blame] | 112 | netdev_info(phydev->attached_dev, "Link is Down\n"); |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 113 | } |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 114 | } |
| 115 | EXPORT_SYMBOL(phy_print_status); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 116 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 117 | /** |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 118 | * phy_config_interrupt - configure the PHY device for the requested interrupts |
| 119 | * @phydev: the phy_device struct |
| 120 | * @interrupts: interrupt flags to configure for this @phydev |
| 121 | * |
Florian Fainelli | ad03350 | 2014-02-11 17:27:38 -0800 | [diff] [blame] | 122 | * Returns 0 on success or < 0 on error. |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 123 | */ |
Heiner Kallweit | 695bce8 | 2018-11-09 18:35:52 +0100 | [diff] [blame] | 124 | static int phy_config_interrupt(struct phy_device *phydev, bool interrupts) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 125 | { |
Heiner Kallweit | 695bce8 | 2018-11-09 18:35:52 +0100 | [diff] [blame] | 126 | phydev->interrupts = interrupts ? 1 : 0; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 127 | if (phydev->drv->config_intr) |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 128 | return phydev->drv->config_intr(phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 129 | |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 130 | return 0; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 131 | } |
| 132 | |
Russell King | 002ba705 | 2017-06-05 12:23:00 +0100 | [diff] [blame] | 133 | /** |
| 134 | * phy_restart_aneg - restart auto-negotiation |
| 135 | * @phydev: target phy_device struct |
| 136 | * |
| 137 | * Restart the autonegotiation on @phydev. Returns >= 0 on success or |
| 138 | * negative errno on error. |
| 139 | */ |
| 140 | int phy_restart_aneg(struct phy_device *phydev) |
| 141 | { |
| 142 | int ret; |
| 143 | |
| 144 | if (phydev->is_c45 && !(phydev->c45_ids.devices_in_package & BIT(0))) |
| 145 | ret = genphy_c45_restart_aneg(phydev); |
| 146 | else |
| 147 | ret = genphy_restart_aneg(phydev); |
| 148 | |
| 149 | return ret; |
| 150 | } |
| 151 | EXPORT_SYMBOL_GPL(phy_restart_aneg); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 152 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 153 | /** |
| 154 | * phy_aneg_done - return auto-negotiation status |
| 155 | * @phydev: target phy_device struct |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 156 | * |
Florian Fainelli | 76a423a | 2014-02-11 17:27:37 -0800 | [diff] [blame] | 157 | * Description: Return the auto-negotiation status from this @phydev |
| 158 | * Returns > 0 on success or < 0 on error. 0 means that auto-negotiation |
| 159 | * is still pending. |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 160 | */ |
Lendacky, Thomas | 372788f9 | 2016-11-10 17:10:46 -0600 | [diff] [blame] | 161 | int phy_aneg_done(struct phy_device *phydev) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 162 | { |
Florian Fainelli | 65f2767 | 2017-02-23 14:22:19 -0800 | [diff] [blame] | 163 | if (phydev->drv && phydev->drv->aneg_done) |
Florian Fainelli | 76a423a | 2014-02-11 17:27:37 -0800 | [diff] [blame] | 164 | return phydev->drv->aneg_done(phydev); |
Heiner Kallweit | d7bed82 | 2019-03-02 17:10:00 +0100 | [diff] [blame] | 165 | else if (phydev->is_c45) |
| 166 | return genphy_c45_aneg_done(phydev); |
| 167 | else |
| 168 | return genphy_aneg_done(phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 169 | } |
Lendacky, Thomas | 372788f9 | 2016-11-10 17:10:46 -0600 | [diff] [blame] | 170 | EXPORT_SYMBOL(phy_aneg_done); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 171 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 172 | /** |
Russell King | d061303 | 2017-04-13 16:49:15 +0100 | [diff] [blame] | 173 | * phy_find_valid - find a PHY setting that matches the requested parameters |
| 174 | * @speed: desired speed |
| 175 | * @duplex: desired duplex |
| 176 | * @supported: mask of supported link modes |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 177 | * |
Russell King | d061303 | 2017-04-13 16:49:15 +0100 | [diff] [blame] | 178 | * Locate a supported phy setting that is, in priority order: |
| 179 | * - an exact match for the specified speed and duplex mode |
| 180 | * - a match for the specified speed, or slower speed |
| 181 | * - the slowest supported speed |
| 182 | * Returns the matched phy_setting entry, or %NULL if no supported phy |
| 183 | * settings were found. |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 184 | */ |
Russell King | d061303 | 2017-04-13 16:49:15 +0100 | [diff] [blame] | 185 | static const struct phy_setting * |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 186 | phy_find_valid(int speed, int duplex, unsigned long *supported) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 187 | { |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 188 | return phy_lookup_setting(speed, duplex, supported, false); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 189 | } |
| 190 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 191 | /** |
Zach Brown | 1f9127c | 2016-10-17 10:49:54 -0500 | [diff] [blame] | 192 | * phy_supported_speeds - return all speeds currently supported by a phy device |
| 193 | * @phy: The phy device to return supported speeds of. |
| 194 | * @speeds: buffer to store supported speeds in. |
| 195 | * @size: size of speeds buffer. |
| 196 | * |
| 197 | * Description: Returns the number of supported speeds, and fills the speeds |
| 198 | * buffer with the supported speeds. If speeds buffer is too small to contain |
| 199 | * all currently supported speeds, will return as many speeds as can fit. |
| 200 | */ |
| 201 | unsigned int phy_supported_speeds(struct phy_device *phy, |
| 202 | unsigned int *speeds, |
| 203 | unsigned int size) |
| 204 | { |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 205 | return phy_speeds(speeds, size, phy->supported); |
Zach Brown | 1f9127c | 2016-10-17 10:49:54 -0500 | [diff] [blame] | 206 | } |
| 207 | |
| 208 | /** |
Guenter Roeck | 54da5a8 | 2015-02-17 09:36:22 -0800 | [diff] [blame] | 209 | * phy_check_valid - check if there is a valid PHY setting which matches |
| 210 | * speed, duplex, and feature mask |
| 211 | * @speed: speed to match |
| 212 | * @duplex: duplex to match |
| 213 | * @features: A mask of the valid settings |
| 214 | * |
| 215 | * Description: Returns true if there is a valid setting, false otherwise. |
| 216 | */ |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 217 | static inline bool phy_check_valid(int speed, int duplex, |
| 218 | unsigned long *features) |
Guenter Roeck | 54da5a8 | 2015-02-17 09:36:22 -0800 | [diff] [blame] | 219 | { |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 220 | return !!phy_lookup_setting(speed, duplex, features, true); |
Guenter Roeck | 54da5a8 | 2015-02-17 09:36:22 -0800 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | /** |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 224 | * phy_sanitize_settings - make sure the PHY is set to supported speed and duplex |
| 225 | * @phydev: the target phy_device struct |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 226 | * |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 227 | * Description: Make sure the PHY is set to supported speeds and |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 228 | * duplexes. Drop down by one in this order: 1000/FULL, |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 229 | * 1000/HALF, 100/FULL, 100/HALF, 10/FULL, 10/HALF. |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 230 | */ |
stephen hemminger | 89ff05e | 2010-10-21 08:37:41 +0000 | [diff] [blame] | 231 | static void phy_sanitize_settings(struct phy_device *phydev) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 232 | { |
Russell King | d061303 | 2017-04-13 16:49:15 +0100 | [diff] [blame] | 233 | const struct phy_setting *setting; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 234 | |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 235 | setting = phy_find_valid(phydev->speed, phydev->duplex, |
| 236 | phydev->supported); |
Russell King | d061303 | 2017-04-13 16:49:15 +0100 | [diff] [blame] | 237 | if (setting) { |
| 238 | phydev->speed = setting->speed; |
| 239 | phydev->duplex = setting->duplex; |
| 240 | } else { |
| 241 | /* We failed to find anything (no supported speeds?) */ |
| 242 | phydev->speed = SPEED_UNKNOWN; |
| 243 | phydev->duplex = DUPLEX_UNKNOWN; |
| 244 | } |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 245 | } |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 246 | |
yuval.shaia@oracle.com | 5514174 | 2017-06-13 10:09:46 +0300 | [diff] [blame] | 247 | void phy_ethtool_ksettings_get(struct phy_device *phydev, |
| 248 | struct ethtool_link_ksettings *cmd) |
Philippe Reynes | 2d55173 | 2016-04-15 00:35:00 +0200 | [diff] [blame] | 249 | { |
Andrew Lunn | c10a485 | 2021-10-24 21:48:02 +0200 | [diff] [blame] | 250 | mutex_lock(&phydev->lock); |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 251 | linkmode_copy(cmd->link_modes.supported, phydev->supported); |
| 252 | linkmode_copy(cmd->link_modes.advertising, phydev->advertising); |
Andrew Lunn | c0ec3c2 | 2018-11-10 23:43:34 +0100 | [diff] [blame] | 253 | linkmode_copy(cmd->link_modes.lp_advertising, phydev->lp_advertising); |
Philippe Reynes | 2d55173 | 2016-04-15 00:35:00 +0200 | [diff] [blame] | 254 | |
| 255 | cmd->base.speed = phydev->speed; |
| 256 | cmd->base.duplex = phydev->duplex; |
Oleksij Rempel | bdbdac7 | 2020-05-05 08:35:05 +0200 | [diff] [blame] | 257 | cmd->base.master_slave_cfg = phydev->master_slave_get; |
| 258 | cmd->base.master_slave_state = phydev->master_slave_state; |
Philippe Reynes | 2d55173 | 2016-04-15 00:35:00 +0200 | [diff] [blame] | 259 | if (phydev->interface == PHY_INTERFACE_MODE_MOCA) |
| 260 | cmd->base.port = PORT_BNC; |
| 261 | else |
Michael Walle | 4217a64 | 2021-02-09 17:38:52 +0100 | [diff] [blame] | 262 | cmd->base.port = phydev->port; |
Florian Fainelli | ceb6281 | 2017-09-20 15:52:14 -0700 | [diff] [blame] | 263 | cmd->base.transceiver = phy_is_internal(phydev) ? |
| 264 | XCVR_INTERNAL : XCVR_EXTERNAL; |
Philippe Reynes | 2d55173 | 2016-04-15 00:35:00 +0200 | [diff] [blame] | 265 | cmd->base.phy_address = phydev->mdio.addr; |
| 266 | cmd->base.autoneg = phydev->autoneg; |
Raju Lakkaraju | 1004ee6 | 2016-11-29 15:16:47 +0530 | [diff] [blame] | 267 | cmd->base.eth_tp_mdix_ctrl = phydev->mdix_ctrl; |
| 268 | cmd->base.eth_tp_mdix = phydev->mdix; |
Andrew Lunn | c10a485 | 2021-10-24 21:48:02 +0200 | [diff] [blame] | 269 | mutex_unlock(&phydev->lock); |
Philippe Reynes | 2d55173 | 2016-04-15 00:35:00 +0200 | [diff] [blame] | 270 | } |
| 271 | EXPORT_SYMBOL(phy_ethtool_ksettings_get); |
| 272 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 273 | /** |
| 274 | * phy_mii_ioctl - generic PHY MII ioctl interface |
| 275 | * @phydev: the phy_device struct |
Randy Dunlap | 00c7d92 | 2010-08-09 13:41:59 +0000 | [diff] [blame] | 276 | * @ifr: &struct ifreq for socket ioctl's |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 277 | * @cmd: ioctl cmd to execute |
| 278 | * |
| 279 | * Note that this function is currently incompatible with the |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 280 | * PHYCONTROL layer. It changes registers without regard to |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 281 | * current state. Use at own risk. |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 282 | */ |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 283 | int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 284 | { |
Richard Cochran | 28b0411 | 2010-07-17 08:48:55 +0000 | [diff] [blame] | 285 | struct mii_ioctl_data *mii_data = if_mii(ifr); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 286 | u16 val = mii_data->val_in; |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 287 | bool change_autoneg = false; |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 288 | int prtad, devad; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 289 | |
| 290 | switch (cmd) { |
| 291 | case SIOCGMIIPHY: |
Andrew Lunn | e5a03bf | 2016-01-06 20:11:16 +0100 | [diff] [blame] | 292 | mii_data->phy_id = phydev->mdio.addr; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 293 | fallthrough; |
Lennert Buytenhek | c6d6a51 | 2008-09-18 03:06:52 +0000 | [diff] [blame] | 294 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 295 | case SIOCGMIIREG: |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 296 | if (mdio_phy_id_is_c45(mii_data->phy_id)) { |
| 297 | prtad = mdio_phy_id_prtad(mii_data->phy_id); |
| 298 | devad = mdio_phy_id_devad(mii_data->phy_id); |
Andrew Lunn | 260bdfe | 2022-04-30 19:30:34 +0200 | [diff] [blame] | 299 | mii_data->val_out = mdiobus_c45_read( |
| 300 | phydev->mdio.bus, prtad, devad, |
| 301 | mii_data->reg_num); |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 302 | } else { |
Andrew Lunn | 260bdfe | 2022-04-30 19:30:34 +0200 | [diff] [blame] | 303 | mii_data->val_out = mdiobus_read( |
| 304 | phydev->mdio.bus, mii_data->phy_id, |
| 305 | mii_data->reg_num); |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 306 | } |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 307 | return 0; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 308 | |
| 309 | case SIOCSMIIREG: |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 310 | if (mdio_phy_id_is_c45(mii_data->phy_id)) { |
| 311 | prtad = mdio_phy_id_prtad(mii_data->phy_id); |
| 312 | devad = mdio_phy_id_devad(mii_data->phy_id); |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 313 | } else { |
| 314 | prtad = mii_data->phy_id; |
| 315 | devad = mii_data->reg_num; |
| 316 | } |
| 317 | if (prtad == phydev->mdio.addr) { |
| 318 | switch (devad) { |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 319 | case MII_BMCR: |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 320 | if ((val & (BMCR_RESET | BMCR_ANENABLE)) == 0) { |
| 321 | if (phydev->autoneg == AUTONEG_ENABLE) |
| 322 | change_autoneg = true; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 323 | phydev->autoneg = AUTONEG_DISABLE; |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 324 | if (val & BMCR_FULLDPLX) |
| 325 | phydev->duplex = DUPLEX_FULL; |
| 326 | else |
| 327 | phydev->duplex = DUPLEX_HALF; |
| 328 | if (val & BMCR_SPEED1000) |
| 329 | phydev->speed = SPEED_1000; |
| 330 | else if (val & BMCR_SPEED100) |
| 331 | phydev->speed = SPEED_100; |
| 332 | else phydev->speed = SPEED_10; |
Wenpeng Liang | 169d7a4 | 2021-06-16 18:01:23 +0800 | [diff] [blame] | 333 | } else { |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 334 | if (phydev->autoneg == AUTONEG_DISABLE) |
| 335 | change_autoneg = true; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 336 | phydev->autoneg = AUTONEG_ENABLE; |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 337 | } |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 338 | break; |
| 339 | case MII_ADVERTISE: |
Andrew Lunn | 9db299c | 2018-12-05 21:49:45 +0100 | [diff] [blame] | 340 | mii_adv_mod_linkmode_adv_t(phydev->advertising, |
| 341 | val); |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 342 | change_autoneg = true; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 343 | break; |
Russell King | 4cf6c57 | 2019-10-04 17:05:58 +0100 | [diff] [blame] | 344 | case MII_CTRL1000: |
| 345 | mii_ctrl1000_mod_linkmode_adv_t(phydev->advertising, |
| 346 | val); |
| 347 | change_autoneg = true; |
| 348 | break; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 349 | default: |
| 350 | /* do nothing */ |
| 351 | break; |
| 352 | } |
| 353 | } |
| 354 | |
Andrew Lunn | 260bdfe | 2022-04-30 19:30:34 +0200 | [diff] [blame] | 355 | if (mdio_phy_id_is_c45(mii_data->phy_id)) |
| 356 | mdiobus_c45_write(phydev->mdio.bus, prtad, devad, |
| 357 | mii_data->reg_num, val); |
| 358 | else |
| 359 | mdiobus_write(phydev->mdio.bus, prtad, devad, val); |
Peter Korsgaard | af1dc13 | 2011-03-10 06:52:13 +0000 | [diff] [blame] | 360 | |
Russell King | cdea04c | 2019-05-28 10:57:29 +0100 | [diff] [blame] | 361 | if (prtad == phydev->mdio.addr && |
| 362 | devad == MII_BMCR && |
Florian Fainelli | 2613f95 | 2013-12-06 13:01:31 -0800 | [diff] [blame] | 363 | val & BMCR_RESET) |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 364 | return phy_init_hw(phydev); |
Brian Hill | 79ce047 | 2014-11-11 13:39:39 -0700 | [diff] [blame] | 365 | |
| 366 | if (change_autoneg) |
| 367 | return phy_start_aneg(phydev); |
| 368 | |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 369 | return 0; |
David Woodhouse | dda93b48 | 2007-11-28 19:56:34 +0000 | [diff] [blame] | 370 | |
Richard Cochran | c1f19b5 | 2010-07-17 08:49:36 +0000 | [diff] [blame] | 371 | case SIOCSHWTSTAMP: |
Richard Cochran | 4715f65 | 2019-12-25 18:16:15 -0800 | [diff] [blame] | 372 | if (phydev->mii_ts && phydev->mii_ts->hwtstamp) |
| 373 | return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr); |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 374 | fallthrough; |
Richard Cochran | c1f19b5 | 2010-07-17 08:49:36 +0000 | [diff] [blame] | 375 | |
David Woodhouse | dda93b48 | 2007-11-28 19:56:34 +0000 | [diff] [blame] | 376 | default: |
Lennert Buytenhek | c6d6a51 | 2008-09-18 03:06:52 +0000 | [diff] [blame] | 377 | return -EOPNOTSUPP; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 378 | } |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 379 | } |
Domen Puncer | 680e9fe | 2007-09-17 22:21:40 +0200 | [diff] [blame] | 380 | EXPORT_SYMBOL(phy_mii_ioctl); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 381 | |
Heiner Kallweit | 2ab1d92 | 2020-01-19 14:31:55 +0100 | [diff] [blame] | 382 | /** |
Arnd Bergmann | a760537 | 2021-07-27 15:45:13 +0200 | [diff] [blame] | 383 | * phy_do_ioctl - generic ndo_eth_ioctl implementation |
Heiner Kallweit | 2ab1d92 | 2020-01-19 14:31:55 +0100 | [diff] [blame] | 384 | * @dev: the net_device struct |
| 385 | * @ifr: &struct ifreq for socket ioctl's |
| 386 | * @cmd: ioctl cmd to execute |
| 387 | */ |
Heiner Kallweit | bbbf843 | 2020-01-20 22:17:11 +0100 | [diff] [blame] | 388 | int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
Heiner Kallweit | 2ab1d92 | 2020-01-19 14:31:55 +0100 | [diff] [blame] | 389 | { |
Heiner Kallweit | bbbf843 | 2020-01-20 22:17:11 +0100 | [diff] [blame] | 390 | if (!dev->phydev) |
Heiner Kallweit | 2ab1d92 | 2020-01-19 14:31:55 +0100 | [diff] [blame] | 391 | return -ENODEV; |
| 392 | |
| 393 | return phy_mii_ioctl(dev->phydev, ifr, cmd); |
| 394 | } |
Heiner Kallweit | bbbf843 | 2020-01-20 22:17:11 +0100 | [diff] [blame] | 395 | EXPORT_SYMBOL(phy_do_ioctl); |
| 396 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 397 | /** |
Arnd Bergmann | a760537 | 2021-07-27 15:45:13 +0200 | [diff] [blame] | 398 | * phy_do_ioctl_running - generic ndo_eth_ioctl implementation but test first |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 399 | * |
| 400 | * @dev: the net_device struct |
| 401 | * @ifr: &struct ifreq for socket ioctl's |
| 402 | * @cmd: ioctl cmd to execute |
| 403 | * |
| 404 | * Same as phy_do_ioctl, but ensures that net_device is running before |
| 405 | * handling the ioctl. |
| 406 | */ |
Heiner Kallweit | bbbf843 | 2020-01-20 22:17:11 +0100 | [diff] [blame] | 407 | int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 408 | { |
| 409 | if (!netif_running(dev)) |
| 410 | return -ENODEV; |
| 411 | |
| 412 | return phy_do_ioctl(dev, ifr, cmd); |
| 413 | } |
Heiner Kallweit | 3231e5d | 2020-01-20 22:16:07 +0100 | [diff] [blame] | 414 | EXPORT_SYMBOL(phy_do_ioctl_running); |
Heiner Kallweit | 2ab1d92 | 2020-01-19 14:31:55 +0100 | [diff] [blame] | 415 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 416 | /** |
| 417 | * phy_queue_state_machine - Trigger the state machine to run soon |
| 418 | * |
| 419 | * @phydev: the phy_device struct |
| 420 | * @jiffies: Run the state machine after these jiffies |
| 421 | */ |
Heiner Kallweit | 97b33bd | 2019-05-30 15:11:06 +0200 | [diff] [blame] | 422 | void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies) |
Heiner Kallweit | a3320bc | 2018-11-07 08:15:58 +0100 | [diff] [blame] | 423 | { |
| 424 | mod_delayed_work(system_power_efficient_wq, &phydev->state_queue, |
Heiner Kallweit | 97b33bd | 2019-05-30 15:11:06 +0200 | [diff] [blame] | 425 | jiffies); |
Heiner Kallweit | a3320bc | 2018-11-07 08:15:58 +0100 | [diff] [blame] | 426 | } |
Heiner Kallweit | 97b33bd | 2019-05-30 15:11:06 +0200 | [diff] [blame] | 427 | EXPORT_SYMBOL(phy_queue_state_machine); |
Heiner Kallweit | a3320bc | 2018-11-07 08:15:58 +0100 | [diff] [blame] | 428 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 429 | /** |
Mauro Carvalho Chehab | 6928022 | 2020-11-16 11:17:57 +0100 | [diff] [blame] | 430 | * phy_trigger_machine - Trigger the state machine to run now |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 431 | * |
| 432 | * @phydev: the phy_device struct |
| 433 | */ |
Ioana Ciornei | 293e9a3 | 2020-11-01 14:50:56 +0200 | [diff] [blame] | 434 | void phy_trigger_machine(struct phy_device *phydev) |
Heiner Kallweit | a3320bc | 2018-11-07 08:15:58 +0100 | [diff] [blame] | 435 | { |
| 436 | phy_queue_state_machine(phydev, 0); |
| 437 | } |
Ioana Ciornei | 293e9a3 | 2020-11-01 14:50:56 +0200 | [diff] [blame] | 438 | EXPORT_SYMBOL(phy_trigger_machine); |
Heiner Kallweit | a3320bc | 2018-11-07 08:15:58 +0100 | [diff] [blame] | 439 | |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 440 | static void phy_abort_cable_test(struct phy_device *phydev) |
| 441 | { |
| 442 | int err; |
| 443 | |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 444 | ethnl_cable_test_finished(phydev); |
| 445 | |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 446 | err = phy_init_hw(phydev); |
| 447 | if (err) |
| 448 | phydev_err(phydev, "Error while aborting cable test"); |
| 449 | } |
| 450 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 451 | /** |
| 452 | * phy_ethtool_get_strings - Get the statistic counter names |
| 453 | * |
| 454 | * @phydev: the phy_device struct |
| 455 | * @data: Where to put the strings |
| 456 | */ |
Florian Fainelli | 1780951 | 2020-07-08 09:46:25 -0700 | [diff] [blame] | 457 | int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data) |
| 458 | { |
| 459 | if (!phydev->drv) |
| 460 | return -EIO; |
| 461 | |
| 462 | mutex_lock(&phydev->lock); |
| 463 | phydev->drv->get_strings(phydev, data); |
| 464 | mutex_unlock(&phydev->lock); |
| 465 | |
| 466 | return 0; |
| 467 | } |
| 468 | EXPORT_SYMBOL(phy_ethtool_get_strings); |
| 469 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 470 | /** |
| 471 | * phy_ethtool_get_sset_count - Get the number of statistic counters |
| 472 | * |
| 473 | * @phydev: the phy_device struct |
| 474 | */ |
Florian Fainelli | 1780951 | 2020-07-08 09:46:25 -0700 | [diff] [blame] | 475 | int phy_ethtool_get_sset_count(struct phy_device *phydev) |
| 476 | { |
| 477 | int ret; |
| 478 | |
| 479 | if (!phydev->drv) |
| 480 | return -EIO; |
| 481 | |
| 482 | if (phydev->drv->get_sset_count && |
| 483 | phydev->drv->get_strings && |
| 484 | phydev->drv->get_stats) { |
| 485 | mutex_lock(&phydev->lock); |
| 486 | ret = phydev->drv->get_sset_count(phydev); |
| 487 | mutex_unlock(&phydev->lock); |
| 488 | |
| 489 | return ret; |
| 490 | } |
| 491 | |
| 492 | return -EOPNOTSUPP; |
| 493 | } |
| 494 | EXPORT_SYMBOL(phy_ethtool_get_sset_count); |
| 495 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 496 | /** |
| 497 | * phy_ethtool_get_stats - Get the statistic counters |
| 498 | * |
| 499 | * @phydev: the phy_device struct |
| 500 | * @stats: What counters to get |
| 501 | * @data: Where to store the counters |
| 502 | */ |
Florian Fainelli | 1780951 | 2020-07-08 09:46:25 -0700 | [diff] [blame] | 503 | int phy_ethtool_get_stats(struct phy_device *phydev, |
| 504 | struct ethtool_stats *stats, u64 *data) |
| 505 | { |
| 506 | if (!phydev->drv) |
| 507 | return -EIO; |
| 508 | |
| 509 | mutex_lock(&phydev->lock); |
| 510 | phydev->drv->get_stats(phydev, stats, data); |
| 511 | mutex_unlock(&phydev->lock); |
| 512 | |
| 513 | return 0; |
| 514 | } |
| 515 | EXPORT_SYMBOL(phy_ethtool_get_stats); |
| 516 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 517 | /** |
| 518 | * phy_start_cable_test - Start a cable test |
| 519 | * |
| 520 | * @phydev: the phy_device struct |
| 521 | * @extack: extack for reporting useful error messages |
| 522 | */ |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 523 | int phy_start_cable_test(struct phy_device *phydev, |
| 524 | struct netlink_ext_ack *extack) |
| 525 | { |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 526 | struct net_device *dev = phydev->attached_dev; |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 527 | int err = -ENOMEM; |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 528 | |
| 529 | if (!(phydev->drv && |
| 530 | phydev->drv->cable_test_start && |
| 531 | phydev->drv->cable_test_get_status)) { |
| 532 | NL_SET_ERR_MSG(extack, |
| 533 | "PHY driver does not support cable testing"); |
| 534 | return -EOPNOTSUPP; |
| 535 | } |
| 536 | |
| 537 | mutex_lock(&phydev->lock); |
| 538 | if (phydev->state == PHY_CABLETEST) { |
| 539 | NL_SET_ERR_MSG(extack, |
| 540 | "PHY already performing a test"); |
| 541 | err = -EBUSY; |
| 542 | goto out; |
| 543 | } |
| 544 | |
| 545 | if (phydev->state < PHY_UP || |
| 546 | phydev->state > PHY_CABLETEST) { |
| 547 | NL_SET_ERR_MSG(extack, |
| 548 | "PHY not configured. Try setting interface up"); |
| 549 | err = -EBUSY; |
| 550 | goto out; |
| 551 | } |
| 552 | |
Andrew Lunn | 1a644de | 2020-05-27 00:21:38 +0200 | [diff] [blame] | 553 | err = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_NTF); |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 554 | if (err) |
| 555 | goto out; |
| 556 | |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 557 | /* Mark the carrier down until the test is complete */ |
Doug Berger | a307593 | 2020-05-18 15:23:59 -0700 | [diff] [blame] | 558 | phy_link_down(phydev); |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 559 | |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 560 | netif_testing_on(dev); |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 561 | err = phydev->drv->cable_test_start(phydev); |
| 562 | if (err) { |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 563 | netif_testing_off(dev); |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 564 | phy_link_up(phydev); |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 565 | goto out_free; |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 566 | } |
| 567 | |
| 568 | phydev->state = PHY_CABLETEST; |
| 569 | |
Andrew Lunn | 97c2243 | 2020-05-10 21:12:32 +0200 | [diff] [blame] | 570 | if (phy_polling_mode(phydev)) |
| 571 | phy_trigger_machine(phydev); |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 572 | |
| 573 | mutex_unlock(&phydev->lock); |
| 574 | |
| 575 | return 0; |
| 576 | |
| 577 | out_free: |
| 578 | ethnl_cable_test_free(phydev); |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 579 | out: |
| 580 | mutex_unlock(&phydev->lock); |
| 581 | |
| 582 | return err; |
| 583 | } |
| 584 | EXPORT_SYMBOL(phy_start_cable_test); |
| 585 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 586 | /** |
| 587 | * phy_start_cable_test_tdr - Start a raw TDR cable test |
| 588 | * |
| 589 | * @phydev: the phy_device struct |
| 590 | * @extack: extack for reporting useful error messages |
| 591 | * @config: Configuration of the test to run |
| 592 | */ |
Andrew Lunn | 1a644de | 2020-05-27 00:21:38 +0200 | [diff] [blame] | 593 | int phy_start_cable_test_tdr(struct phy_device *phydev, |
Andrew Lunn | f2bc8ad | 2020-05-27 00:21:41 +0200 | [diff] [blame] | 594 | struct netlink_ext_ack *extack, |
| 595 | const struct phy_tdr_config *config) |
Andrew Lunn | 1a644de | 2020-05-27 00:21:38 +0200 | [diff] [blame] | 596 | { |
| 597 | struct net_device *dev = phydev->attached_dev; |
| 598 | int err = -ENOMEM; |
| 599 | |
| 600 | if (!(phydev->drv && |
| 601 | phydev->drv->cable_test_tdr_start && |
| 602 | phydev->drv->cable_test_get_status)) { |
| 603 | NL_SET_ERR_MSG(extack, |
| 604 | "PHY driver does not support cable test TDR"); |
| 605 | return -EOPNOTSUPP; |
| 606 | } |
| 607 | |
| 608 | mutex_lock(&phydev->lock); |
| 609 | if (phydev->state == PHY_CABLETEST) { |
| 610 | NL_SET_ERR_MSG(extack, |
| 611 | "PHY already performing a test"); |
| 612 | err = -EBUSY; |
| 613 | goto out; |
| 614 | } |
| 615 | |
| 616 | if (phydev->state < PHY_UP || |
| 617 | phydev->state > PHY_CABLETEST) { |
| 618 | NL_SET_ERR_MSG(extack, |
| 619 | "PHY not configured. Try setting interface up"); |
| 620 | err = -EBUSY; |
| 621 | goto out; |
| 622 | } |
| 623 | |
| 624 | err = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_TDR_NTF); |
| 625 | if (err) |
| 626 | goto out; |
| 627 | |
| 628 | /* Mark the carrier down until the test is complete */ |
| 629 | phy_link_down(phydev); |
| 630 | |
| 631 | netif_testing_on(dev); |
Andrew Lunn | f2bc8ad | 2020-05-27 00:21:41 +0200 | [diff] [blame] | 632 | err = phydev->drv->cable_test_tdr_start(phydev, config); |
Andrew Lunn | 1a644de | 2020-05-27 00:21:38 +0200 | [diff] [blame] | 633 | if (err) { |
| 634 | netif_testing_off(dev); |
| 635 | phy_link_up(phydev); |
| 636 | goto out_free; |
| 637 | } |
| 638 | |
| 639 | phydev->state = PHY_CABLETEST; |
| 640 | |
| 641 | if (phy_polling_mode(phydev)) |
| 642 | phy_trigger_machine(phydev); |
| 643 | |
| 644 | mutex_unlock(&phydev->lock); |
| 645 | |
| 646 | return 0; |
| 647 | |
| 648 | out_free: |
| 649 | ethnl_cable_test_free(phydev); |
| 650 | out: |
| 651 | mutex_unlock(&phydev->lock); |
| 652 | |
| 653 | return err; |
| 654 | } |
| 655 | EXPORT_SYMBOL(phy_start_cable_test_tdr); |
| 656 | |
Oleksij Rempel | 014068d | 2021-04-19 15:01:02 +0200 | [diff] [blame] | 657 | int phy_config_aneg(struct phy_device *phydev) |
Heiner Kallweit | 7629958 | 2018-07-12 21:31:54 +0200 | [diff] [blame] | 658 | { |
| 659 | if (phydev->drv->config_aneg) |
| 660 | return phydev->drv->config_aneg(phydev); |
Camelia Groza | 3478600 | 2018-07-23 18:06:15 +0300 | [diff] [blame] | 661 | |
| 662 | /* Clause 45 PHYs that don't implement Clause 22 registers are not |
| 663 | * allowed to call genphy_config_aneg() |
| 664 | */ |
| 665 | if (phydev->is_c45 && !(phydev->c45_ids.devices_in_package & BIT(0))) |
Marco Hartmann | 94acaeb | 2019-08-21 11:00:46 +0000 | [diff] [blame] | 666 | return genphy_c45_config_aneg(phydev); |
Camelia Groza | 3478600 | 2018-07-23 18:06:15 +0300 | [diff] [blame] | 667 | |
| 668 | return genphy_config_aneg(phydev); |
Heiner Kallweit | 7629958 | 2018-07-12 21:31:54 +0200 | [diff] [blame] | 669 | } |
Oleksij Rempel | 014068d | 2021-04-19 15:01:02 +0200 | [diff] [blame] | 670 | EXPORT_SYMBOL(phy_config_aneg); |
Heiner Kallweit | 7629958 | 2018-07-12 21:31:54 +0200 | [diff] [blame] | 671 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 672 | /** |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 673 | * phy_check_link_status - check link status and set state accordingly |
| 674 | * @phydev: the phy_device struct |
| 675 | * |
| 676 | * Description: Check for link and whether autoneg was triggered / is running |
| 677 | * and set state accordingly |
| 678 | */ |
| 679 | static int phy_check_link_status(struct phy_device *phydev) |
| 680 | { |
| 681 | int err; |
| 682 | |
Heiner Kallweit | e6e918d | 2021-01-06 14:03:40 +0100 | [diff] [blame] | 683 | lockdep_assert_held(&phydev->lock); |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 684 | |
Jose Abreu | fe4a7a4 | 2019-09-05 13:43:10 +0200 | [diff] [blame] | 685 | /* Keep previous state if loopback is enabled because some PHYs |
| 686 | * report that Link is Down when loopback is enabled. |
| 687 | */ |
| 688 | if (phydev->loopback_enabled) |
| 689 | return 0; |
| 690 | |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 691 | err = phy_read_status(phydev); |
| 692 | if (err) |
| 693 | return err; |
| 694 | |
| 695 | if (phydev->link && phydev->state != PHY_RUNNING) { |
Heiner Kallweit | 5eee3bb | 2020-03-20 17:51:38 +0100 | [diff] [blame] | 696 | phy_check_downshift(phydev); |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 697 | phydev->state = PHY_RUNNING; |
| 698 | phy_link_up(phydev); |
| 699 | } else if (!phydev->link && phydev->state != PHY_NOLINK) { |
| 700 | phydev->state = PHY_NOLINK; |
Doug Berger | a307593 | 2020-05-18 15:23:59 -0700 | [diff] [blame] | 701 | phy_link_down(phydev); |
Heiner Kallweit | 74a992b | 2018-11-07 20:45:58 +0100 | [diff] [blame] | 702 | } |
| 703 | |
| 704 | return 0; |
| 705 | } |
| 706 | |
| 707 | /** |
Andrew Lunn | 707293a | 2021-10-24 21:48:04 +0200 | [diff] [blame] | 708 | * _phy_start_aneg - start auto-negotiation for this PHY device |
| 709 | * @phydev: the phy_device struct |
| 710 | * |
| 711 | * Description: Sanitizes the settings (if we're not autonegotiating |
| 712 | * them), and then calls the driver's config_aneg function. |
| 713 | * If the PHYCONTROL Layer is operating, we change the state to |
| 714 | * reflect the beginning of Auto-negotiation or forcing. |
| 715 | */ |
| 716 | static int _phy_start_aneg(struct phy_device *phydev) |
| 717 | { |
| 718 | int err; |
| 719 | |
| 720 | lockdep_assert_held(&phydev->lock); |
| 721 | |
| 722 | if (!phydev->drv) |
| 723 | return -EIO; |
| 724 | |
| 725 | if (AUTONEG_DISABLE == phydev->autoneg) |
| 726 | phy_sanitize_settings(phydev); |
| 727 | |
| 728 | err = phy_config_aneg(phydev); |
| 729 | if (err < 0) |
| 730 | return err; |
| 731 | |
| 732 | if (phy_is_started(phydev)) |
| 733 | err = phy_check_link_status(phydev); |
| 734 | |
| 735 | return err; |
| 736 | } |
| 737 | |
| 738 | /** |
Heiner Kallweit | c45d715 | 2018-10-15 21:25:13 +0200 | [diff] [blame] | 739 | * phy_start_aneg - start auto-negotiation for this PHY device |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 740 | * @phydev: the phy_device struct |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 741 | * |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 742 | * Description: Sanitizes the settings (if we're not autonegotiating |
| 743 | * them), and then calls the driver's config_aneg function. |
| 744 | * If the PHYCONTROL Layer is operating, we change the state to |
| 745 | * reflect the beginning of Auto-negotiation or forcing. |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 746 | */ |
Heiner Kallweit | c45d715 | 2018-10-15 21:25:13 +0200 | [diff] [blame] | 747 | int phy_start_aneg(struct phy_device *phydev) |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 748 | { |
| 749 | int err; |
| 750 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 751 | mutex_lock(&phydev->lock); |
Andrew Lunn | 707293a | 2021-10-24 21:48:04 +0200 | [diff] [blame] | 752 | err = _phy_start_aneg(phydev); |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 753 | mutex_unlock(&phydev->lock); |
Alexander Kochetkov | f555f34 | 2017-04-20 14:00:04 +0300 | [diff] [blame] | 754 | |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 755 | return err; |
| 756 | } |
| 757 | EXPORT_SYMBOL(phy_start_aneg); |
| 758 | |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 759 | static int phy_poll_aneg_done(struct phy_device *phydev) |
| 760 | { |
| 761 | unsigned int retries = 100; |
| 762 | int ret; |
| 763 | |
| 764 | do { |
| 765 | msleep(100); |
| 766 | ret = phy_aneg_done(phydev); |
| 767 | } while (!ret && --retries); |
| 768 | |
| 769 | if (!ret) |
| 770 | return -ETIMEDOUT; |
| 771 | |
| 772 | return ret < 0 ? ret : 0; |
| 773 | } |
| 774 | |
Andrew Lunn | 64cd92d | 2021-10-24 21:48:03 +0200 | [diff] [blame] | 775 | int phy_ethtool_ksettings_set(struct phy_device *phydev, |
| 776 | const struct ethtool_link_ksettings *cmd) |
| 777 | { |
| 778 | __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); |
| 779 | u8 autoneg = cmd->base.autoneg; |
| 780 | u8 duplex = cmd->base.duplex; |
| 781 | u32 speed = cmd->base.speed; |
| 782 | |
| 783 | if (cmd->base.phy_address != phydev->mdio.addr) |
| 784 | return -EINVAL; |
| 785 | |
| 786 | linkmode_copy(advertising, cmd->link_modes.advertising); |
| 787 | |
| 788 | /* We make sure that we don't pass unsupported values in to the PHY */ |
| 789 | linkmode_and(advertising, advertising, phydev->supported); |
| 790 | |
| 791 | /* Verify the settings we care about. */ |
| 792 | if (autoneg != AUTONEG_ENABLE && autoneg != AUTONEG_DISABLE) |
| 793 | return -EINVAL; |
| 794 | |
| 795 | if (autoneg == AUTONEG_ENABLE && linkmode_empty(advertising)) |
| 796 | return -EINVAL; |
| 797 | |
| 798 | if (autoneg == AUTONEG_DISABLE && |
| 799 | ((speed != SPEED_1000 && |
| 800 | speed != SPEED_100 && |
| 801 | speed != SPEED_10) || |
| 802 | (duplex != DUPLEX_HALF && |
| 803 | duplex != DUPLEX_FULL))) |
| 804 | return -EINVAL; |
| 805 | |
Andrew Lunn | af1a02a | 2021-10-24 21:48:05 +0200 | [diff] [blame] | 806 | mutex_lock(&phydev->lock); |
Andrew Lunn | 64cd92d | 2021-10-24 21:48:03 +0200 | [diff] [blame] | 807 | phydev->autoneg = autoneg; |
| 808 | |
| 809 | if (autoneg == AUTONEG_DISABLE) { |
| 810 | phydev->speed = speed; |
| 811 | phydev->duplex = duplex; |
| 812 | } |
| 813 | |
| 814 | linkmode_copy(phydev->advertising, advertising); |
| 815 | |
| 816 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, |
| 817 | phydev->advertising, autoneg == AUTONEG_ENABLE); |
| 818 | |
| 819 | phydev->master_slave_set = cmd->base.master_slave_cfg; |
| 820 | phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl; |
| 821 | |
| 822 | /* Restart the PHY */ |
Heiner Kallweit | a4db905 | 2021-11-03 22:08:28 +0100 | [diff] [blame] | 823 | if (phy_is_started(phydev)) { |
| 824 | phydev->state = PHY_UP; |
| 825 | phy_trigger_machine(phydev); |
| 826 | } else { |
| 827 | _phy_start_aneg(phydev); |
| 828 | } |
Andrew Lunn | 64cd92d | 2021-10-24 21:48:03 +0200 | [diff] [blame] | 829 | |
Andrew Lunn | af1a02a | 2021-10-24 21:48:05 +0200 | [diff] [blame] | 830 | mutex_unlock(&phydev->lock); |
Andrew Lunn | 64cd92d | 2021-10-24 21:48:03 +0200 | [diff] [blame] | 831 | return 0; |
| 832 | } |
| 833 | EXPORT_SYMBOL(phy_ethtool_ksettings_set); |
| 834 | |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 835 | /** |
| 836 | * phy_speed_down - set speed to lowest speed supported by both link partners |
| 837 | * @phydev: the phy_device struct |
| 838 | * @sync: perform action synchronously |
| 839 | * |
| 840 | * Description: Typically used to save energy when waiting for a WoL packet |
| 841 | * |
| 842 | * WARNING: Setting sync to false may cause the system being unable to suspend |
| 843 | * in case the PHY generates an interrupt when finishing the autonegotiation. |
| 844 | * This interrupt may wake up the system immediately after suspend. |
| 845 | * Therefore use sync = false only if you're sure it's safe with the respective |
| 846 | * network chip. |
| 847 | */ |
| 848 | int phy_speed_down(struct phy_device *phydev, bool sync) |
| 849 | { |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 850 | __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_tmp); |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 851 | int ret; |
| 852 | |
| 853 | if (phydev->autoneg != AUTONEG_ENABLE) |
| 854 | return 0; |
| 855 | |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 856 | linkmode_copy(adv_tmp, phydev->advertising); |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 857 | |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 858 | ret = phy_speed_down_core(phydev); |
| 859 | if (ret) |
| 860 | return ret; |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 861 | |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 862 | linkmode_copy(phydev->adv_old, adv_tmp); |
| 863 | |
| 864 | if (linkmode_equal(phydev->advertising, adv_tmp)) |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 865 | return 0; |
| 866 | |
| 867 | ret = phy_config_aneg(phydev); |
| 868 | if (ret) |
| 869 | return ret; |
| 870 | |
| 871 | return sync ? phy_poll_aneg_done(phydev) : 0; |
| 872 | } |
| 873 | EXPORT_SYMBOL_GPL(phy_speed_down); |
| 874 | |
| 875 | /** |
| 876 | * phy_speed_up - (re)set advertised speeds to all supported speeds |
| 877 | * @phydev: the phy_device struct |
| 878 | * |
| 879 | * Description: Used to revert the effect of phy_speed_down |
| 880 | */ |
| 881 | int phy_speed_up(struct phy_device *phydev) |
| 882 | { |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 883 | __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_tmp); |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 884 | |
| 885 | if (phydev->autoneg != AUTONEG_ENABLE) |
| 886 | return 0; |
| 887 | |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 888 | if (linkmode_empty(phydev->adv_old)) |
| 889 | return 0; |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 890 | |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 891 | linkmode_copy(adv_tmp, phydev->advertising); |
| 892 | linkmode_copy(phydev->advertising, phydev->adv_old); |
| 893 | linkmode_zero(phydev->adv_old); |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 894 | |
Heiner Kallweit | 65b2799 | 2019-08-12 23:52:19 +0200 | [diff] [blame] | 895 | if (linkmode_equal(phydev->advertising, adv_tmp)) |
Heiner Kallweit | 2b9672d | 2018-07-12 21:32:53 +0200 | [diff] [blame] | 896 | return 0; |
| 897 | |
| 898 | return phy_config_aneg(phydev); |
| 899 | } |
| 900 | EXPORT_SYMBOL_GPL(phy_speed_up); |
| 901 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 902 | /** |
| 903 | * phy_start_machine - start PHY state machine tracking |
| 904 | * @phydev: the phy_device struct |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 905 | * |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 906 | * Description: The PHY infrastructure can run a state machine |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 907 | * which tracks whether the PHY is starting up, negotiating, |
Florian Fainelli | fb5e7606b | 2017-07-26 12:05:38 -0700 | [diff] [blame] | 908 | * etc. This function starts the delayed workqueue which tracks |
| 909 | * the state of the PHY. If you want to maintain your own state machine, |
Sergei Shtylyov | 29935ae | 2014-01-05 03:27:17 +0300 | [diff] [blame] | 910 | * do not call this function. |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 911 | */ |
Sergei Shtylyov | 29935ae | 2014-01-05 03:27:17 +0300 | [diff] [blame] | 912 | void phy_start_machine(struct phy_device *phydev) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 913 | { |
Heiner Kallweit | 6384e48 | 2018-10-11 19:31:47 +0200 | [diff] [blame] | 914 | phy_trigger_machine(phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 915 | } |
Russell King | 5e5758d | 2017-07-25 15:03:03 +0100 | [diff] [blame] | 916 | EXPORT_SYMBOL_GPL(phy_start_machine); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 917 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 918 | /** |
| 919 | * phy_stop_machine - stop the PHY state machine tracking |
| 920 | * @phydev: target phy_device struct |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 921 | * |
Florian Fainelli | fb5e7606b | 2017-07-26 12:05:38 -0700 | [diff] [blame] | 922 | * Description: Stops the state machine delayed workqueue, sets the |
| 923 | * state to UP (unless it wasn't up yet). This function must be |
| 924 | * called BEFORE phy_detach. |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 925 | */ |
| 926 | void phy_stop_machine(struct phy_device *phydev) |
| 927 | { |
Marcin Slusarz | a390d1f | 2009-03-13 15:41:19 -0700 | [diff] [blame] | 928 | cancel_delayed_work_sync(&phydev->state_queue); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 929 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 930 | mutex_lock(&phydev->lock); |
Heiner Kallweit | a2fc9d7 | 2019-02-13 20:11:40 +0100 | [diff] [blame] | 931 | if (phy_is_started(phydev)) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 932 | phydev->state = PHY_UP; |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 933 | mutex_unlock(&phydev->lock); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 934 | } |
| 935 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 936 | /** |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 937 | * phy_error - enter HALTED state for this PHY device |
| 938 | * @phydev: target phy_device struct |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 939 | * |
| 940 | * Moves the PHY to the HALTED state in response to a read |
| 941 | * or write error, and tells the controller the link is down. |
| 942 | * Must not be called from interrupt context, or while the |
| 943 | * phydev->lock is held. |
| 944 | */ |
Ioana Ciornei | 293e9a3 | 2020-11-01 14:50:56 +0200 | [diff] [blame] | 945 | void phy_error(struct phy_device *phydev) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 946 | { |
Heiner Kallweit | fa7b28c | 2018-12-16 19:18:26 +0100 | [diff] [blame] | 947 | WARN_ON(1); |
| 948 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 949 | mutex_lock(&phydev->lock); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 950 | phydev->state = PHY_HALTED; |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 951 | mutex_unlock(&phydev->lock); |
Andrew Lunn | 3c293f4 | 2016-10-12 22:14:53 +0200 | [diff] [blame] | 952 | |
Heiner Kallweit | 9f2959b | 2018-09-28 08:51:09 +0200 | [diff] [blame] | 953 | phy_trigger_machine(phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 954 | } |
Ioana Ciornei | 293e9a3 | 2020-11-01 14:50:56 +0200 | [diff] [blame] | 955 | EXPORT_SYMBOL(phy_error); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 956 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 957 | /** |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 958 | * phy_disable_interrupts - Disable the PHY interrupts from the PHY side |
| 959 | * @phydev: target phy_device struct |
| 960 | */ |
Jisheng Zhang | 3dd4ef1 | 2020-06-24 15:58:24 +0800 | [diff] [blame] | 961 | int phy_disable_interrupts(struct phy_device *phydev) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 962 | { |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 963 | /* Disable PHY interrupts */ |
Ioana Ciornei | 6527b93 | 2020-11-23 17:38:17 +0200 | [diff] [blame] | 964 | return phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 965 | } |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 966 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 967 | /** |
Brad Mouring | a2c054a | 2018-03-08 16:23:03 -0600 | [diff] [blame] | 968 | * phy_interrupt - PHY interrupt handler |
| 969 | * @irq: interrupt line |
| 970 | * @phy_dat: phy_device pointer |
| 971 | * |
Heiner Kallweit | 34d884e | 2018-11-09 18:58:01 +0100 | [diff] [blame] | 972 | * Description: Handle PHY interrupt |
Brad Mouring | a2c054a | 2018-03-08 16:23:03 -0600 | [diff] [blame] | 973 | */ |
| 974 | static irqreturn_t phy_interrupt(int irq, void *phy_dat) |
| 975 | { |
| 976 | struct phy_device *phydev = phy_dat; |
Heiner Kallweit | 9010f9d | 2020-03-16 22:32:33 +0100 | [diff] [blame] | 977 | struct phy_driver *drv = phydev->drv; |
Francesco Dolcini | 91a7cda | 2022-05-06 08:08:15 +0200 | [diff] [blame] | 978 | irqreturn_t ret; |
Brad Mouring | a2c054a | 2018-03-08 16:23:03 -0600 | [diff] [blame] | 979 | |
Lukas Wunner | 1758bde | 2022-06-28 12:15:08 +0200 | [diff] [blame] | 980 | /* Wakeup interrupts may occur during a system sleep transition. |
| 981 | * Postpone handling until the PHY has resumed. |
| 982 | */ |
| 983 | if (IS_ENABLED(CONFIG_PM_SLEEP) && phydev->irq_suspended) { |
| 984 | struct net_device *netdev = phydev->attached_dev; |
| 985 | |
| 986 | if (netdev) { |
| 987 | struct device *parent = netdev->dev.parent; |
| 988 | |
| 989 | if (netdev->wol_enabled) |
| 990 | pm_system_wakeup(); |
| 991 | else if (device_may_wakeup(&netdev->dev)) |
| 992 | pm_wakeup_dev_event(&netdev->dev, 0, true); |
| 993 | else if (parent && device_may_wakeup(parent)) |
| 994 | pm_wakeup_dev_event(parent, 0, true); |
| 995 | } |
| 996 | |
| 997 | phydev->irq_rerun = 1; |
| 998 | disable_irq_nosync(irq); |
| 999 | return IRQ_HANDLED; |
| 1000 | } |
| 1001 | |
Francesco Dolcini | 91a7cda | 2022-05-06 08:08:15 +0200 | [diff] [blame] | 1002 | mutex_lock(&phydev->lock); |
| 1003 | ret = drv->handle_interrupt(phydev); |
| 1004 | mutex_unlock(&phydev->lock); |
| 1005 | |
| 1006 | return ret; |
Brad Mouring | a2c054a | 2018-03-08 16:23:03 -0600 | [diff] [blame] | 1007 | } |
| 1008 | |
| 1009 | /** |
| 1010 | * phy_enable_interrupts - Enable the interrupts from the PHY side |
| 1011 | * @phydev: target phy_device struct |
| 1012 | */ |
| 1013 | static int phy_enable_interrupts(struct phy_device *phydev) |
| 1014 | { |
Brad Mouring | a2c054a | 2018-03-08 16:23:03 -0600 | [diff] [blame] | 1015 | return phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED); |
| 1016 | } |
| 1017 | |
| 1018 | /** |
Heiner Kallweit | 07b0928 | 2019-05-30 15:09:15 +0200 | [diff] [blame] | 1019 | * phy_request_interrupt - request and enable interrupt for a PHY device |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 1020 | * @phydev: target phy_device struct |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1021 | * |
Heiner Kallweit | 07b0928 | 2019-05-30 15:09:15 +0200 | [diff] [blame] | 1022 | * Description: Request and enable the interrupt for the given PHY. |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 1023 | * If this fails, then we set irq to PHY_POLL. |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1024 | * This should only be called with a valid IRQ number. |
| 1025 | */ |
Heiner Kallweit | 434a431 | 2019-01-23 07:31:58 +0100 | [diff] [blame] | 1026 | void phy_request_interrupt(struct phy_device *phydev) |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1027 | { |
Heiner Kallweit | 434a431 | 2019-01-23 07:31:58 +0100 | [diff] [blame] | 1028 | int err; |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1029 | |
Heiner Kallweit | 434a431 | 2019-01-23 07:31:58 +0100 | [diff] [blame] | 1030 | err = request_threaded_irq(phydev->irq, NULL, phy_interrupt, |
| 1031 | IRQF_ONESHOT | IRQF_SHARED, |
| 1032 | phydev_name(phydev), phydev); |
| 1033 | if (err) { |
| 1034 | phydev_warn(phydev, "Error %d requesting IRQ %d, falling back to polling\n", |
| 1035 | err, phydev->irq); |
| 1036 | phydev->irq = PHY_POLL; |
Heiner Kallweit | 07b0928 | 2019-05-30 15:09:15 +0200 | [diff] [blame] | 1037 | } else { |
| 1038 | if (phy_enable_interrupts(phydev)) { |
| 1039 | phydev_warn(phydev, "Can't enable interrupt, falling back to polling\n"); |
| 1040 | phy_free_interrupt(phydev); |
| 1041 | phydev->irq = PHY_POLL; |
| 1042 | } |
Heiner Kallweit | 434a431 | 2019-01-23 07:31:58 +0100 | [diff] [blame] | 1043 | } |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1044 | } |
Heiner Kallweit | 434a431 | 2019-01-23 07:31:58 +0100 | [diff] [blame] | 1045 | EXPORT_SYMBOL(phy_request_interrupt); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1046 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 1047 | /** |
Heiner Kallweit | 07b0928 | 2019-05-30 15:09:15 +0200 | [diff] [blame] | 1048 | * phy_free_interrupt - disable and free interrupt for a PHY device |
| 1049 | * @phydev: target phy_device struct |
| 1050 | * |
| 1051 | * Description: Disable and free the interrupt for the given PHY. |
| 1052 | * This should only be called with a valid IRQ number. |
| 1053 | */ |
| 1054 | void phy_free_interrupt(struct phy_device *phydev) |
| 1055 | { |
| 1056 | phy_disable_interrupts(phydev); |
| 1057 | free_irq(phydev->irq, phydev); |
| 1058 | } |
| 1059 | EXPORT_SYMBOL(phy_free_interrupt); |
| 1060 | |
| 1061 | /** |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 1062 | * phy_stop - Bring down the PHY link, and stop checking the status |
| 1063 | * @phydev: target phy_device struct |
| 1064 | */ |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1065 | void phy_stop(struct phy_device *phydev) |
| 1066 | { |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 1067 | struct net_device *dev = phydev->attached_dev; |
| 1068 | |
Florian Fainelli | 5116a8a | 2020-09-16 20:43:10 -0700 | [diff] [blame] | 1069 | if (!phy_is_started(phydev) && phydev->state != PHY_DOWN) { |
Heiner Kallweit | 2b3e88e | 2018-12-16 18:30:14 +0100 | [diff] [blame] | 1070 | WARN(1, "called from state %s\n", |
| 1071 | phy_state_to_str(phydev->state)); |
Heiner Kallweit | 2b3e88e | 2018-12-16 18:30:14 +0100 | [diff] [blame] | 1072 | return; |
| 1073 | } |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1074 | |
Heiner Kallweit | a2fc9d7 | 2019-02-13 20:11:40 +0100 | [diff] [blame] | 1075 | mutex_lock(&phydev->lock); |
| 1076 | |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 1077 | if (phydev->state == PHY_CABLETEST) { |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 1078 | phy_abort_cable_test(phydev); |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 1079 | netif_testing_off(dev); |
| 1080 | } |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 1081 | |
Russell King | 298e54f | 2019-11-15 19:56:51 +0000 | [diff] [blame] | 1082 | if (phydev->sfp_bus) |
| 1083 | sfp_upstream_stop(phydev->sfp_bus); |
| 1084 | |
Maciej W. Rozycki | 6daf653 | 2007-09-28 22:42:15 -0700 | [diff] [blame] | 1085 | phydev->state = PHY_HALTED; |
| 1086 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1087 | mutex_unlock(&phydev->lock); |
Maciej W. Rozycki | 3c3070d7 | 2006-10-03 16:18:35 +0100 | [diff] [blame] | 1088 | |
Heiner Kallweit | e8cfd9d | 2018-09-18 21:56:32 +0200 | [diff] [blame] | 1089 | phy_state_machine(&phydev->state_queue.work); |
Heiner Kallweit | cbfd12b | 2019-01-17 20:08:39 +0100 | [diff] [blame] | 1090 | phy_stop_machine(phydev); |
Heiner Kallweit | e8cfd9d | 2018-09-18 21:56:32 +0200 | [diff] [blame] | 1091 | |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 1092 | /* Cannot call flush_scheduled_work() here as desired because |
Heiner Kallweit | 34d884e | 2018-11-09 18:58:01 +0100 | [diff] [blame] | 1093 | * of rtnl_lock(), but PHY_HALTED shall guarantee irq handler |
Maciej W. Rozycki | 3c3070d7 | 2006-10-03 16:18:35 +0100 | [diff] [blame] | 1094 | * will not reenable interrupts. |
| 1095 | */ |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1096 | } |
Sergei Shtylyov | 2f53e90 | 2014-01-05 03:17:06 +0300 | [diff] [blame] | 1097 | EXPORT_SYMBOL(phy_stop); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1098 | |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 1099 | /** |
| 1100 | * phy_start - start or restart a PHY device |
| 1101 | * @phydev: target phy_device struct |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1102 | * |
Randy Dunlap | b3df0da | 2007-03-06 02:41:48 -0800 | [diff] [blame] | 1103 | * Description: Indicates the attached device's readiness to |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1104 | * handle PHY-related work. Used during startup to start the |
| 1105 | * PHY, and after a call to phy_stop() to resume operation. |
| 1106 | * Also used to indicate the MDIO bus has cleared an error |
| 1107 | * condition. |
| 1108 | */ |
| 1109 | void phy_start(struct phy_device *phydev) |
| 1110 | { |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1111 | mutex_lock(&phydev->lock); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1112 | |
Heiner Kallweit | 2179626 | 2019-01-23 07:30:38 +0100 | [diff] [blame] | 1113 | if (phydev->state != PHY_READY && phydev->state != PHY_HALTED) { |
| 1114 | WARN(1, "called from state %s\n", |
| 1115 | phy_state_to_str(phydev->state)); |
| 1116 | goto out; |
| 1117 | } |
| 1118 | |
Russell King | 298e54f | 2019-11-15 19:56:51 +0000 | [diff] [blame] | 1119 | if (phydev->sfp_bus) |
| 1120 | sfp_upstream_start(phydev->sfp_bus); |
| 1121 | |
Heiner Kallweit | 9e573cf | 2019-01-23 07:31:23 +0100 | [diff] [blame] | 1122 | /* if phy was suspended, bring the physical link up again */ |
| 1123 | __phy_resume(phydev); |
Russell King | f5e6403 | 2017-12-12 10:45:36 +0000 | [diff] [blame] | 1124 | |
Heiner Kallweit | f24098f | 2019-05-01 22:14:21 +0200 | [diff] [blame] | 1125 | phydev->state = PHY_UP; |
Heiner Kallweit | 9e573cf | 2019-01-23 07:31:23 +0100 | [diff] [blame] | 1126 | |
| 1127 | phy_start_machine(phydev); |
Heiner Kallweit | 2179626 | 2019-01-23 07:30:38 +0100 | [diff] [blame] | 1128 | out: |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1129 | mutex_unlock(&phydev->lock); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1130 | } |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 1131 | EXPORT_SYMBOL(phy_start); |
Jeff Garzik | 67c4f3f | 2005-08-11 02:07:25 -0400 | [diff] [blame] | 1132 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1133 | /** |
| 1134 | * phy_state_machine - Handle the state machine |
| 1135 | * @work: work_struct that describes the work to be done |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1136 | */ |
Anton Vorontsov | 4f9c85a | 2010-01-18 05:37:16 +0000 | [diff] [blame] | 1137 | void phy_state_machine(struct work_struct *work) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1138 | { |
Jean Delvare | bf6aede | 2009-04-02 16:56:54 -0700 | [diff] [blame] | 1139 | struct delayed_work *dwork = to_delayed_work(work); |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1140 | struct phy_device *phydev = |
Marcin Slusarz | a390d1f | 2009-03-13 15:41:19 -0700 | [diff] [blame] | 1141 | container_of(dwork, struct phy_device, state_queue); |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 1142 | struct net_device *dev = phydev->attached_dev; |
Tim Beale | c15e10e | 2015-05-18 15:38:38 +1200 | [diff] [blame] | 1143 | bool needs_aneg = false, do_suspend = false; |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 1144 | enum phy_state old_state; |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 1145 | bool finished = false; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1146 | int err = 0; |
| 1147 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1148 | mutex_lock(&phydev->lock); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1149 | |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 1150 | old_state = phydev->state; |
| 1151 | |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1152 | switch (phydev->state) { |
| 1153 | case PHY_DOWN: |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1154 | case PHY_READY: |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1155 | break; |
| 1156 | case PHY_UP: |
Zhangfei Gao | 6e14a5ee | 2014-05-15 13:35:34 +0800 | [diff] [blame] | 1157 | needs_aneg = true; |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1158 | |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1159 | break; |
| 1160 | case PHY_NOLINK: |
Heiner Kallweit | c8e977b | 2018-11-07 20:47:53 +0100 | [diff] [blame] | 1161 | case PHY_RUNNING: |
Heiner Kallweit | c8e977b | 2018-11-07 20:47:53 +0100 | [diff] [blame] | 1162 | err = phy_check_link_status(phydev); |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1163 | break; |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 1164 | case PHY_CABLETEST: |
| 1165 | err = phydev->drv->cable_test_get_status(phydev, &finished); |
| 1166 | if (err) { |
| 1167 | phy_abort_cable_test(phydev); |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 1168 | netif_testing_off(dev); |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 1169 | needs_aneg = true; |
| 1170 | phydev->state = PHY_UP; |
| 1171 | break; |
| 1172 | } |
| 1173 | |
| 1174 | if (finished) { |
Andrew Lunn | 1dd3f21 | 2020-05-10 21:12:36 +0200 | [diff] [blame] | 1175 | ethnl_cable_test_finished(phydev); |
Andrew Lunn | 4a459bd | 2020-05-10 21:12:39 +0200 | [diff] [blame] | 1176 | netif_testing_off(dev); |
Andrew Lunn | a68a813 | 2020-05-10 21:12:30 +0200 | [diff] [blame] | 1177 | needs_aneg = true; |
| 1178 | phydev->state = PHY_UP; |
| 1179 | } |
| 1180 | break; |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1181 | case PHY_HALTED: |
| 1182 | if (phydev->link) { |
| 1183 | phydev->link = 0; |
Doug Berger | a307593 | 2020-05-18 15:23:59 -0700 | [diff] [blame] | 1184 | phy_link_down(phydev); |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1185 | } |
Jian Shen | 95fb8bb | 2019-08-28 09:34:47 +0800 | [diff] [blame] | 1186 | do_suspend = true; |
Florian Fainelli | e109374 | 2013-12-17 21:38:12 -0800 | [diff] [blame] | 1187 | break; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1188 | } |
| 1189 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1190 | mutex_unlock(&phydev->lock); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1191 | |
| 1192 | if (needs_aneg) |
Heiner Kallweit | c45d715 | 2018-10-15 21:25:13 +0200 | [diff] [blame] | 1193 | err = phy_start_aneg(phydev); |
Zhangfei Gao | 6e14a5ee | 2014-05-15 13:35:34 +0800 | [diff] [blame] | 1194 | else if (do_suspend) |
Sebastian Hesselbarth | be9dad1 | 2013-12-13 10:20:29 +0100 | [diff] [blame] | 1195 | phy_suspend(phydev); |
| 1196 | |
Oleksij Rempel | 06edf1a | 2021-06-07 10:27:26 +0200 | [diff] [blame] | 1197 | if (err == -ENODEV) |
| 1198 | return; |
| 1199 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1200 | if (err < 0) |
| 1201 | phy_error(phydev); |
| 1202 | |
Heiner Kallweit | 5c5f626 | 2019-03-19 19:56:51 +0100 | [diff] [blame] | 1203 | if (old_state != phydev->state) { |
Marc Gonzalez | 6a95bef | 2017-07-28 13:18:30 +0200 | [diff] [blame] | 1204 | phydev_dbg(phydev, "PHY state change %s -> %s\n", |
| 1205 | phy_state_to_str(old_state), |
| 1206 | phy_state_to_str(phydev->state)); |
Heiner Kallweit | 5c5f626 | 2019-03-19 19:56:51 +0100 | [diff] [blame] | 1207 | if (phydev->drv && phydev->drv->link_change_notify) |
| 1208 | phydev->drv->link_change_notify(phydev); |
| 1209 | } |
Florian Fainelli | 3e2186e | 2015-05-16 10:17:56 -0700 | [diff] [blame] | 1210 | |
Florian Fainelli | d5c3d84 | 2016-01-18 19:33:06 -0800 | [diff] [blame] | 1211 | /* Only re-schedule a PHY state machine change if we are polling the |
Heiner Kallweit | 93e8990 | 2021-02-14 15:16:23 +0100 | [diff] [blame] | 1212 | * PHY, if PHY_MAC_INTERRUPT is set, then we will be moving |
Heiner Kallweit | 075ddeb | 2018-09-20 22:34:25 +0200 | [diff] [blame] | 1213 | * between states from phy_mac_interrupt(). |
| 1214 | * |
| 1215 | * In state PHY_HALTED the PHY gets suspended, so rescheduling the |
| 1216 | * state machine would be pointless and possibly error prone when |
| 1217 | * called from phy_disconnect() synchronously. |
Florian Fainelli | d5c3d84 | 2016-01-18 19:33:06 -0800 | [diff] [blame] | 1218 | */ |
Heiner Kallweit | a200490 | 2019-02-13 20:12:54 +0100 | [diff] [blame] | 1219 | mutex_lock(&phydev->lock); |
Heiner Kallweit | 2b3e88e | 2018-12-16 18:30:14 +0100 | [diff] [blame] | 1220 | if (phy_polling_mode(phydev) && phy_is_started(phydev)) |
Heiner Kallweit | 9f2959b | 2018-09-28 08:51:09 +0200 | [diff] [blame] | 1221 | phy_queue_state_machine(phydev, PHY_STATE_TIME); |
Heiner Kallweit | a200490 | 2019-02-13 20:12:54 +0100 | [diff] [blame] | 1222 | mutex_unlock(&phydev->lock); |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 1223 | } |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1224 | |
Andrew Lunn | 664fcf1 | 2016-10-16 19:56:51 +0200 | [diff] [blame] | 1225 | /** |
| 1226 | * phy_mac_interrupt - MAC says the link has changed |
| 1227 | * @phydev: phy_device struct with changed link |
Andrew Lunn | 664fcf1 | 2016-10-16 19:56:51 +0200 | [diff] [blame] | 1228 | * |
Heiner Kallweit | 28b2e0d | 2018-01-10 21:21:31 +0100 | [diff] [blame] | 1229 | * The MAC layer is able to indicate there has been a change in the PHY link |
| 1230 | * status. Trigger the state machine and work a work queue. |
Andrew Lunn | 664fcf1 | 2016-10-16 19:56:51 +0200 | [diff] [blame] | 1231 | */ |
Heiner Kallweit | 28b2e0d | 2018-01-10 21:21:31 +0100 | [diff] [blame] | 1232 | void phy_mac_interrupt(struct phy_device *phydev) |
Florian Fainelli | 5ea94e7 | 2013-05-19 22:53:43 +0000 | [diff] [blame] | 1233 | { |
Florian Fainelli | deccd16f9 | 2016-01-18 19:33:07 -0800 | [diff] [blame] | 1234 | /* Trigger a state machine change */ |
Heiner Kallweit | d73a215 | 2018-11-09 18:56:52 +0100 | [diff] [blame] | 1235 | phy_trigger_machine(phydev); |
Florian Fainelli | 5ea94e7 | 2013-05-19 22:53:43 +0000 | [diff] [blame] | 1236 | } |
| 1237 | EXPORT_SYMBOL(phy_mac_interrupt); |
| 1238 | |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 1239 | static void mmd_eee_adv_to_linkmode(unsigned long *advertising, u16 eee_adv) |
| 1240 | { |
| 1241 | linkmode_zero(advertising); |
| 1242 | |
| 1243 | if (eee_adv & MDIO_EEE_100TX) |
| 1244 | linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, |
| 1245 | advertising); |
| 1246 | if (eee_adv & MDIO_EEE_1000T) |
| 1247 | linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, |
| 1248 | advertising); |
| 1249 | if (eee_adv & MDIO_EEE_10GT) |
| 1250 | linkmode_set_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, |
| 1251 | advertising); |
| 1252 | if (eee_adv & MDIO_EEE_1000KX) |
| 1253 | linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, |
| 1254 | advertising); |
| 1255 | if (eee_adv & MDIO_EEE_10GKX4) |
| 1256 | linkmode_set_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, |
| 1257 | advertising); |
| 1258 | if (eee_adv & MDIO_EEE_10GKR) |
| 1259 | linkmode_set_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, |
| 1260 | advertising); |
| 1261 | } |
| 1262 | |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1263 | /** |
| 1264 | * phy_init_eee - init and check the EEE feature |
| 1265 | * @phydev: target phy_device struct |
| 1266 | * @clk_stop_enable: PHY may stop the clock during LPI |
| 1267 | * |
| 1268 | * Description: it checks if the Energy-Efficient Ethernet (EEE) |
| 1269 | * is supported by looking at the MMD registers 3.20 and 7.60/61 |
| 1270 | * and it programs the MMD register 3.0 setting the "Clock stop enable" |
| 1271 | * bit if required. |
| 1272 | */ |
| 1273 | int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable) |
| 1274 | { |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1275 | if (!phydev->drv) |
| 1276 | return -EIO; |
| 1277 | |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1278 | /* According to 802.3az,the EEE is supported only in full duplex-mode. |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1279 | */ |
Russell King | 32d7514 | 2017-03-31 10:37:18 +0100 | [diff] [blame] | 1280 | if (phydev->duplex == DUPLEX_FULL) { |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 1281 | __ETHTOOL_DECLARE_LINK_MODE_MASK(common); |
| 1282 | __ETHTOOL_DECLARE_LINK_MODE_MASK(lp); |
| 1283 | __ETHTOOL_DECLARE_LINK_MODE_MASK(adv); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1284 | int eee_lp, eee_cap, eee_adv; |
Bjorn Helgaas | 4ae6e50 | 2014-03-04 17:35:44 -0700 | [diff] [blame] | 1285 | int status; |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 1286 | u32 cap; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1287 | |
| 1288 | /* Read phy status to properly get the right settings */ |
| 1289 | status = phy_read_status(phydev); |
| 1290 | if (status) |
| 1291 | return status; |
| 1292 | |
| 1293 | /* First check if the EEE ability is supported */ |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1294 | eee_cap = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE); |
Giuseppe CAVALLARO | 7a4cecf | 2014-08-26 09:26:52 +0200 | [diff] [blame] | 1295 | if (eee_cap <= 0) |
| 1296 | goto eee_exit_err; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1297 | |
Allan, Bruce W | b32607d | 2012-08-20 04:55:29 +0000 | [diff] [blame] | 1298 | cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1299 | if (!cap) |
Giuseppe CAVALLARO | 7a4cecf | 2014-08-26 09:26:52 +0200 | [diff] [blame] | 1300 | goto eee_exit_err; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1301 | |
| 1302 | /* Check which link settings negotiated and verify it in |
| 1303 | * the EEE advertising registers. |
| 1304 | */ |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1305 | eee_lp = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE); |
Giuseppe CAVALLARO | 7a4cecf | 2014-08-26 09:26:52 +0200 | [diff] [blame] | 1306 | if (eee_lp <= 0) |
| 1307 | goto eee_exit_err; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1308 | |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1309 | eee_adv = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV); |
Giuseppe CAVALLARO | 7a4cecf | 2014-08-26 09:26:52 +0200 | [diff] [blame] | 1310 | if (eee_adv <= 0) |
| 1311 | goto eee_exit_err; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1312 | |
Andrew Lunn | 3c1bcc8 | 2018-11-10 23:43:33 +0100 | [diff] [blame] | 1313 | mmd_eee_adv_to_linkmode(adv, eee_adv); |
| 1314 | mmd_eee_adv_to_linkmode(lp, eee_lp); |
| 1315 | linkmode_and(common, adv, lp); |
| 1316 | |
| 1317 | if (!phy_check_valid(phydev->speed, phydev->duplex, common)) |
Giuseppe CAVALLARO | 7a4cecf | 2014-08-26 09:26:52 +0200 | [diff] [blame] | 1318 | goto eee_exit_err; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1319 | |
Heiner Kallweit | b52c018 | 2019-02-06 07:38:43 +0100 | [diff] [blame] | 1320 | if (clk_stop_enable) |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1321 | /* Configure the PHY to stop receiving xMII |
| 1322 | * clock while it is signaling LPI. |
| 1323 | */ |
Heiner Kallweit | b52c018 | 2019-02-06 07:38:43 +0100 | [diff] [blame] | 1324 | phy_set_bits_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1, |
| 1325 | MDIO_PCS_CTRL1_CLKSTOP_EN); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1326 | |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 1327 | return 0; /* EEE supported */ |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1328 | } |
Giuseppe CAVALLARO | 7a4cecf | 2014-08-26 09:26:52 +0200 | [diff] [blame] | 1329 | eee_exit_err: |
Sergei Shtylyov | e62a768 | 2014-01-05 03:21:52 +0300 | [diff] [blame] | 1330 | return -EPROTONOSUPPORT; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1331 | } |
| 1332 | EXPORT_SYMBOL(phy_init_eee); |
| 1333 | |
| 1334 | /** |
| 1335 | * phy_get_eee_err - report the EEE wake error count |
| 1336 | * @phydev: target phy_device struct |
| 1337 | * |
| 1338 | * Description: it is to report the number of time where the PHY |
| 1339 | * failed to complete its normal wake sequence. |
| 1340 | */ |
| 1341 | int phy_get_eee_err(struct phy_device *phydev) |
| 1342 | { |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1343 | if (!phydev->drv) |
| 1344 | return -EIO; |
| 1345 | |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1346 | return phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_WK_ERR); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1347 | } |
| 1348 | EXPORT_SYMBOL(phy_get_eee_err); |
| 1349 | |
| 1350 | /** |
| 1351 | * phy_ethtool_get_eee - get EEE supported and status |
| 1352 | * @phydev: target phy_device struct |
| 1353 | * @data: ethtool_eee data |
| 1354 | * |
| 1355 | * Description: it reportes the Supported/Advertisement/LP Advertisement |
| 1356 | * capabilities. |
| 1357 | */ |
| 1358 | int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data) |
| 1359 | { |
| 1360 | int val; |
| 1361 | |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1362 | if (!phydev->drv) |
| 1363 | return -EIO; |
| 1364 | |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1365 | /* Get Supported EEE */ |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1366 | val = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1367 | if (val < 0) |
| 1368 | return val; |
Allan, Bruce W | b32607d | 2012-08-20 04:55:29 +0000 | [diff] [blame] | 1369 | data->supported = mmd_eee_cap_to_ethtool_sup_t(val); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1370 | |
| 1371 | /* Get advertisement EEE */ |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1372 | val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1373 | if (val < 0) |
| 1374 | return val; |
Allan, Bruce W | b32607d | 2012-08-20 04:55:29 +0000 | [diff] [blame] | 1375 | data->advertised = mmd_eee_adv_to_ethtool_adv_t(val); |
Heiner Kallweit | d1420bb | 2018-11-27 22:30:14 +0100 | [diff] [blame] | 1376 | data->eee_enabled = !!data->advertised; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1377 | |
| 1378 | /* Get LP advertisement EEE */ |
Russell King | a6d99fc | 2017-03-21 16:36:53 +0000 | [diff] [blame] | 1379 | val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1380 | if (val < 0) |
| 1381 | return val; |
Allan, Bruce W | b32607d | 2012-08-20 04:55:29 +0000 | [diff] [blame] | 1382 | data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val); |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1383 | |
Heiner Kallweit | d1420bb | 2018-11-27 22:30:14 +0100 | [diff] [blame] | 1384 | data->eee_active = !!(data->advertised & data->lp_advertised); |
| 1385 | |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1386 | return 0; |
| 1387 | } |
| 1388 | EXPORT_SYMBOL(phy_ethtool_get_eee); |
| 1389 | |
| 1390 | /** |
| 1391 | * phy_ethtool_set_eee - set EEE supported and status |
| 1392 | * @phydev: target phy_device struct |
| 1393 | * @data: ethtool_eee data |
| 1394 | * |
| 1395 | * Description: it is to program the Advertisement EEE register. |
| 1396 | */ |
| 1397 | int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data) |
| 1398 | { |
Heiner Kallweit | d1420bb | 2018-11-27 22:30:14 +0100 | [diff] [blame] | 1399 | int cap, old_adv, adv = 0, ret; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1400 | |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1401 | if (!phydev->drv) |
| 1402 | return -EIO; |
| 1403 | |
Russell King | 83ea067 | 2017-03-31 10:37:07 +0100 | [diff] [blame] | 1404 | /* Get Supported EEE */ |
| 1405 | cap = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE); |
| 1406 | if (cap < 0) |
| 1407 | return cap; |
| 1408 | |
Russell King | f75abeb | 2017-03-31 10:37:12 +0100 | [diff] [blame] | 1409 | old_adv = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV); |
| 1410 | if (old_adv < 0) |
| 1411 | return old_adv; |
| 1412 | |
Heiner Kallweit | d1420bb | 2018-11-27 22:30:14 +0100 | [diff] [blame] | 1413 | if (data->eee_enabled) { |
| 1414 | adv = !data->advertised ? cap : |
| 1415 | ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap; |
| 1416 | /* Mask prohibited EEE modes */ |
| 1417 | adv &= ~phydev->eee_broken_modes; |
| 1418 | } |
jbrunet | d853d14 | 2016-11-28 10:46:46 +0100 | [diff] [blame] | 1419 | |
Russell King | f75abeb | 2017-03-31 10:37:12 +0100 | [diff] [blame] | 1420 | if (old_adv != adv) { |
| 1421 | ret = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv); |
| 1422 | if (ret < 0) |
| 1423 | return ret; |
| 1424 | |
| 1425 | /* Restart autonegotiation so the new modes get sent to the |
| 1426 | * link partner. |
| 1427 | */ |
Heiner Kallweit | 9de5d23 | 2020-05-12 21:45:53 +0200 | [diff] [blame] | 1428 | if (phydev->autoneg == AUTONEG_ENABLE) { |
| 1429 | ret = phy_restart_aneg(phydev); |
| 1430 | if (ret < 0) |
| 1431 | return ret; |
| 1432 | } |
Russell King | f75abeb | 2017-03-31 10:37:12 +0100 | [diff] [blame] | 1433 | } |
| 1434 | |
| 1435 | return 0; |
Giuseppe CAVALLARO | a59a4d1 | 2012-06-27 21:14:38 +0000 | [diff] [blame] | 1436 | } |
| 1437 | EXPORT_SYMBOL(phy_ethtool_set_eee); |
Michael Stapelberg | 42e836e | 2013-03-11 13:56:44 +0000 | [diff] [blame] | 1438 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 1439 | /** |
| 1440 | * phy_ethtool_set_wol - Configure Wake On LAN |
| 1441 | * |
| 1442 | * @phydev: target phy_device struct |
| 1443 | * @wol: Configuration requested |
| 1444 | */ |
Michael Stapelberg | 42e836e | 2013-03-11 13:56:44 +0000 | [diff] [blame] | 1445 | int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol) |
| 1446 | { |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1447 | if (phydev->drv && phydev->drv->set_wol) |
Michael Stapelberg | 42e836e | 2013-03-11 13:56:44 +0000 | [diff] [blame] | 1448 | return phydev->drv->set_wol(phydev, wol); |
| 1449 | |
| 1450 | return -EOPNOTSUPP; |
| 1451 | } |
| 1452 | EXPORT_SYMBOL(phy_ethtool_set_wol); |
| 1453 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 1454 | /** |
| 1455 | * phy_ethtool_get_wol - Get the current Wake On LAN configuration |
| 1456 | * |
| 1457 | * @phydev: target phy_device struct |
| 1458 | * @wol: Store the current configuration here |
| 1459 | */ |
Michael Stapelberg | 42e836e | 2013-03-11 13:56:44 +0000 | [diff] [blame] | 1460 | void phy_ethtool_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol) |
| 1461 | { |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1462 | if (phydev->drv && phydev->drv->get_wol) |
Michael Stapelberg | 42e836e | 2013-03-11 13:56:44 +0000 | [diff] [blame] | 1463 | phydev->drv->get_wol(phydev, wol); |
| 1464 | } |
| 1465 | EXPORT_SYMBOL(phy_ethtool_get_wol); |
Philippe Reynes | 9d9a77c | 2016-05-10 00:19:41 +0200 | [diff] [blame] | 1466 | |
| 1467 | int phy_ethtool_get_link_ksettings(struct net_device *ndev, |
| 1468 | struct ethtool_link_ksettings *cmd) |
| 1469 | { |
| 1470 | struct phy_device *phydev = ndev->phydev; |
| 1471 | |
| 1472 | if (!phydev) |
| 1473 | return -ENODEV; |
| 1474 | |
yuval.shaia@oracle.com | 5514174 | 2017-06-13 10:09:46 +0300 | [diff] [blame] | 1475 | phy_ethtool_ksettings_get(phydev, cmd); |
| 1476 | |
| 1477 | return 0; |
Philippe Reynes | 9d9a77c | 2016-05-10 00:19:41 +0200 | [diff] [blame] | 1478 | } |
| 1479 | EXPORT_SYMBOL(phy_ethtool_get_link_ksettings); |
| 1480 | |
| 1481 | int phy_ethtool_set_link_ksettings(struct net_device *ndev, |
| 1482 | const struct ethtool_link_ksettings *cmd) |
| 1483 | { |
| 1484 | struct phy_device *phydev = ndev->phydev; |
| 1485 | |
| 1486 | if (!phydev) |
| 1487 | return -ENODEV; |
| 1488 | |
| 1489 | return phy_ethtool_ksettings_set(phydev, cmd); |
| 1490 | } |
| 1491 | EXPORT_SYMBOL(phy_ethtool_set_link_ksettings); |
Florian Fainelli | e86a898 | 2016-11-15 10:06:30 -0800 | [diff] [blame] | 1492 | |
Andrew Lunn | 4069a57 | 2020-09-23 00:29:03 +0200 | [diff] [blame] | 1493 | /** |
| 1494 | * phy_ethtool_nway_reset - Restart auto negotiation |
| 1495 | * @ndev: Network device to restart autoneg for |
| 1496 | */ |
Florian Fainelli | e86a898 | 2016-11-15 10:06:30 -0800 | [diff] [blame] | 1497 | int phy_ethtool_nway_reset(struct net_device *ndev) |
| 1498 | { |
| 1499 | struct phy_device *phydev = ndev->phydev; |
| 1500 | |
| 1501 | if (!phydev) |
| 1502 | return -ENODEV; |
| 1503 | |
Florian Fainelli | 25149ef | 2017-02-17 16:07:34 -0800 | [diff] [blame] | 1504 | if (!phydev->drv) |
| 1505 | return -EIO; |
| 1506 | |
Russell King | 002ba705 | 2017-06-05 12:23:00 +0100 | [diff] [blame] | 1507 | return phy_restart_aneg(phydev); |
Florian Fainelli | e86a898 | 2016-11-15 10:06:30 -0800 | [diff] [blame] | 1508 | } |
| 1509 | EXPORT_SYMBOL(phy_ethtool_nway_reset); |