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1745 lines
56 KiB
1745 lines
56 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Framework and drivers for configuring and reading different PHYs |
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* Based on code in sungem_phy.c and (long-removed) 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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*/ |
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#ifndef __PHY_H |
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#define __PHY_H |
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#include <linux/compiler.h> |
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#include <linux/spinlock.h> |
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#include <linux/ethtool.h> |
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#include <linux/linkmode.h> |
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#include <linux/netlink.h> |
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#include <linux/mdio.h> |
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#include <linux/mii.h> |
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#include <linux/mii_timestamper.h> |
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#include <linux/module.h> |
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#include <linux/timer.h> |
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#include <linux/workqueue.h> |
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#include <linux/mod_devicetable.h> |
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#include <linux/u64_stats_sync.h> |
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#include <linux/irqreturn.h> |
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#include <linux/iopoll.h> |
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#include <linux/refcount.h> |
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#include <linux/atomic.h> |
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#define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \ |
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SUPPORTED_TP | \ |
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SUPPORTED_MII) |
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#define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \ |
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SUPPORTED_10baseT_Full) |
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#define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \ |
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SUPPORTED_100baseT_Full) |
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#define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \ |
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SUPPORTED_1000baseT_Full) |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init; |
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extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init; |
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#define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features) |
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#define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features) |
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#define PHY_GBIT_FEATURES ((unsigned long *)&phy_gbit_features) |
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#define PHY_GBIT_FIBRE_FEATURES ((unsigned long *)&phy_gbit_fibre_features) |
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#define PHY_GBIT_ALL_PORTS_FEATURES ((unsigned long *)&phy_gbit_all_ports_features) |
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#define PHY_10GBIT_FEATURES ((unsigned long *)&phy_10gbit_features) |
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#define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features) |
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#define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features) |
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extern const int phy_basic_ports_array[3]; |
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extern const int phy_fibre_port_array[1]; |
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extern const int phy_all_ports_features_array[7]; |
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extern const int phy_10_100_features_array[4]; |
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extern const int phy_basic_t1_features_array[2]; |
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extern const int phy_gbit_features_array[2]; |
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extern const int phy_10gbit_features_array[1]; |
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/* |
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* Set phydev->irq to PHY_POLL if interrupts are not supported, |
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* or not desired for this PHY. Set to PHY_MAC_INTERRUPT if |
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* the attached MAC driver handles the interrupt |
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*/ |
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#define PHY_POLL -1 |
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#define PHY_MAC_INTERRUPT -2 |
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#define PHY_IS_INTERNAL 0x00000001 |
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#define PHY_RST_AFTER_CLK_EN 0x00000002 |
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#define PHY_POLL_CABLE_TEST 0x00000004 |
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#define MDIO_DEVICE_IS_PHY 0x80000000 |
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/** |
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* enum phy_interface_t - Interface Mode definitions |
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* |
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* @PHY_INTERFACE_MODE_NA: Not Applicable - don't touch |
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* @PHY_INTERFACE_MODE_INTERNAL: No interface, MAC and PHY combined |
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* @PHY_INTERFACE_MODE_MII: Median-independent interface |
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* @PHY_INTERFACE_MODE_GMII: Gigabit median-independent interface |
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* @PHY_INTERFACE_MODE_SGMII: Serial gigabit media-independent interface |
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* @PHY_INTERFACE_MODE_TBI: Ten Bit Interface |
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* @PHY_INTERFACE_MODE_REVMII: Reverse Media Independent Interface |
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* @PHY_INTERFACE_MODE_RMII: Reduced Media Independent Interface |
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* @PHY_INTERFACE_MODE_RGMII: Reduced gigabit media-independent interface |
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* @PHY_INTERFACE_MODE_RGMII_ID: RGMII with Internal RX+TX delay |
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* @PHY_INTERFACE_MODE_RGMII_RXID: RGMII with Internal RX delay |
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* @PHY_INTERFACE_MODE_RGMII_TXID: RGMII with Internal RX delay |
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* @PHY_INTERFACE_MODE_RTBI: Reduced TBI |
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* @PHY_INTERFACE_MODE_SMII: ??? MII |
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* @PHY_INTERFACE_MODE_XGMII: 10 gigabit media-independent interface |
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* @PHY_INTERFACE_MODE_XLGMII:40 gigabit media-independent interface |
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* @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax |
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* @PHY_INTERFACE_MODE_QSGMII: Quad SGMII |
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* @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII |
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* @PHY_INTERFACE_MODE_100BASEX: 100 BaseX |
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* @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX |
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* @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX |
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* @PHY_INTERFACE_MODE_5GBASER: 5G BaseR |
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* @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI |
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* @PHY_INTERFACE_MODE_XAUI: 10 Gigabit Attachment Unit Interface |
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* @PHY_INTERFACE_MODE_10GBASER: 10G BaseR |
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* @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII |
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* @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN |
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* @PHY_INTERFACE_MODE_MAX: Book keeping |
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* |
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* Describes the interface between the MAC and PHY. |
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*/ |
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typedef enum { |
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PHY_INTERFACE_MODE_NA, |
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PHY_INTERFACE_MODE_INTERNAL, |
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PHY_INTERFACE_MODE_MII, |
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PHY_INTERFACE_MODE_GMII, |
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PHY_INTERFACE_MODE_SGMII, |
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PHY_INTERFACE_MODE_TBI, |
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PHY_INTERFACE_MODE_REVMII, |
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PHY_INTERFACE_MODE_RMII, |
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PHY_INTERFACE_MODE_RGMII, |
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PHY_INTERFACE_MODE_RGMII_ID, |
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PHY_INTERFACE_MODE_RGMII_RXID, |
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PHY_INTERFACE_MODE_RGMII_TXID, |
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PHY_INTERFACE_MODE_RTBI, |
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PHY_INTERFACE_MODE_SMII, |
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PHY_INTERFACE_MODE_XGMII, |
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PHY_INTERFACE_MODE_XLGMII, |
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PHY_INTERFACE_MODE_MOCA, |
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PHY_INTERFACE_MODE_QSGMII, |
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PHY_INTERFACE_MODE_TRGMII, |
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PHY_INTERFACE_MODE_100BASEX, |
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PHY_INTERFACE_MODE_1000BASEX, |
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PHY_INTERFACE_MODE_2500BASEX, |
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PHY_INTERFACE_MODE_5GBASER, |
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PHY_INTERFACE_MODE_RXAUI, |
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PHY_INTERFACE_MODE_XAUI, |
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/* 10GBASE-R, XFI, SFI - single lane 10G Serdes */ |
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PHY_INTERFACE_MODE_10GBASER, |
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PHY_INTERFACE_MODE_USXGMII, |
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/* 10GBASE-KR - with Clause 73 AN */ |
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PHY_INTERFACE_MODE_10GKR, |
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PHY_INTERFACE_MODE_MAX, |
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} phy_interface_t; |
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/* |
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* phy_supported_speeds - return all speeds currently supported by a PHY device |
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*/ |
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unsigned int phy_supported_speeds(struct phy_device *phy, |
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unsigned int *speeds, |
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unsigned int size); |
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/** |
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* phy_modes - map phy_interface_t enum to device tree binding of phy-mode |
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* @interface: enum phy_interface_t value |
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* |
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* Description: maps enum &phy_interface_t defined in this file |
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* into the device tree binding of 'phy-mode', so that Ethernet |
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* device driver can get PHY interface from device tree. |
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*/ |
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static inline const char *phy_modes(phy_interface_t interface) |
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{ |
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switch (interface) { |
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case PHY_INTERFACE_MODE_NA: |
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return ""; |
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case PHY_INTERFACE_MODE_INTERNAL: |
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return "internal"; |
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case PHY_INTERFACE_MODE_MII: |
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return "mii"; |
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case PHY_INTERFACE_MODE_GMII: |
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return "gmii"; |
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case PHY_INTERFACE_MODE_SGMII: |
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return "sgmii"; |
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case PHY_INTERFACE_MODE_TBI: |
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return "tbi"; |
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case PHY_INTERFACE_MODE_REVMII: |
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return "rev-mii"; |
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case PHY_INTERFACE_MODE_RMII: |
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return "rmii"; |
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case PHY_INTERFACE_MODE_RGMII: |
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return "rgmii"; |
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case PHY_INTERFACE_MODE_RGMII_ID: |
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return "rgmii-id"; |
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case PHY_INTERFACE_MODE_RGMII_RXID: |
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return "rgmii-rxid"; |
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case PHY_INTERFACE_MODE_RGMII_TXID: |
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return "rgmii-txid"; |
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case PHY_INTERFACE_MODE_RTBI: |
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return "rtbi"; |
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case PHY_INTERFACE_MODE_SMII: |
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return "smii"; |
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case PHY_INTERFACE_MODE_XGMII: |
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return "xgmii"; |
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case PHY_INTERFACE_MODE_XLGMII: |
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return "xlgmii"; |
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case PHY_INTERFACE_MODE_MOCA: |
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return "moca"; |
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case PHY_INTERFACE_MODE_QSGMII: |
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return "qsgmii"; |
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case PHY_INTERFACE_MODE_TRGMII: |
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return "trgmii"; |
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case PHY_INTERFACE_MODE_1000BASEX: |
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return "1000base-x"; |
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case PHY_INTERFACE_MODE_2500BASEX: |
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return "2500base-x"; |
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case PHY_INTERFACE_MODE_5GBASER: |
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return "5gbase-r"; |
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case PHY_INTERFACE_MODE_RXAUI: |
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return "rxaui"; |
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case PHY_INTERFACE_MODE_XAUI: |
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return "xaui"; |
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case PHY_INTERFACE_MODE_10GBASER: |
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return "10gbase-r"; |
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case PHY_INTERFACE_MODE_USXGMII: |
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return "usxgmii"; |
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case PHY_INTERFACE_MODE_10GKR: |
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return "10gbase-kr"; |
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case PHY_INTERFACE_MODE_100BASEX: |
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return "100base-x"; |
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default: |
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return "unknown"; |
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} |
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} |
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#define PHY_INIT_TIMEOUT 100000 |
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#define PHY_FORCE_TIMEOUT 10 |
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#define PHY_MAX_ADDR 32 |
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/* Used when trying to connect to a specific phy (mii bus id:phy device id) */ |
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#define PHY_ID_FMT "%s:%02x" |
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#define MII_BUS_ID_SIZE 61 |
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struct device; |
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struct phylink; |
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struct sfp_bus; |
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struct sfp_upstream_ops; |
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struct sk_buff; |
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/** |
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* struct mdio_bus_stats - Statistics counters for MDIO busses |
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* @transfers: Total number of transfers, i.e. @writes + @reads |
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* @errors: Number of MDIO transfers that returned an error |
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* @writes: Number of write transfers |
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* @reads: Number of read transfers |
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* @syncp: Synchronisation for incrementing statistics |
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*/ |
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struct mdio_bus_stats { |
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u64_stats_t transfers; |
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u64_stats_t errors; |
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u64_stats_t writes; |
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u64_stats_t reads; |
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/* Must be last, add new statistics above */ |
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struct u64_stats_sync syncp; |
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}; |
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/** |
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* struct phy_package_shared - Shared information in PHY packages |
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* @addr: Common PHY address used to combine PHYs in one package |
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* @refcnt: Number of PHYs connected to this shared data |
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* @flags: Initialization of PHY package |
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* @priv_size: Size of the shared private data @priv |
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* @priv: Driver private data shared across a PHY package |
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* |
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* Represents a shared structure between different phydev's in the same |
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* package, for example a quad PHY. See phy_package_join() and |
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* phy_package_leave(). |
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*/ |
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struct phy_package_shared { |
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int addr; |
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refcount_t refcnt; |
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unsigned long flags; |
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size_t priv_size; |
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/* private data pointer */ |
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/* note that this pointer is shared between different phydevs and |
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* the user has to take care of appropriate locking. It is allocated |
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* and freed automatically by phy_package_join() and |
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* phy_package_leave(). |
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*/ |
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void *priv; |
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}; |
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/* used as bit number in atomic bitops */ |
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#define PHY_SHARED_F_INIT_DONE 0 |
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#define PHY_SHARED_F_PROBE_DONE 1 |
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/** |
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* struct mii_bus - Represents an MDIO bus |
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* |
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* @owner: Who owns this device |
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* @name: User friendly name for this MDIO device, or driver name |
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* @id: Unique identifier for this bus, typical from bus hierarchy |
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* @priv: Driver private data |
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* |
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* The Bus class for PHYs. Devices which provide access to |
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* PHYs should register using this structure |
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*/ |
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struct mii_bus { |
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struct module *owner; |
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const char *name; |
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char id[MII_BUS_ID_SIZE]; |
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void *priv; |
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/** @read: Perform a read transfer on the bus */ |
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int (*read)(struct mii_bus *bus, int addr, int regnum); |
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/** @write: Perform a write transfer on the bus */ |
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int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val); |
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/** @reset: Perform a reset of the bus */ |
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int (*reset)(struct mii_bus *bus); |
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/** @stats: Statistic counters per device on the bus */ |
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struct mdio_bus_stats stats[PHY_MAX_ADDR]; |
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/** |
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* @mdio_lock: A lock to ensure that only one thing can read/write |
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* the MDIO bus at a time |
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*/ |
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struct mutex mdio_lock; |
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/** @parent: Parent device of this bus */ |
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struct device *parent; |
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/** @state: State of bus structure */ |
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enum { |
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MDIOBUS_ALLOCATED = 1, |
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MDIOBUS_REGISTERED, |
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MDIOBUS_UNREGISTERED, |
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MDIOBUS_RELEASED, |
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} state; |
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/** @dev: Kernel device representation */ |
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struct device dev; |
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/** @mdio_map: list of all MDIO devices on bus */ |
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struct mdio_device *mdio_map[PHY_MAX_ADDR]; |
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/** @phy_mask: PHY addresses to be ignored when probing */ |
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u32 phy_mask; |
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/** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */ |
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u32 phy_ignore_ta_mask; |
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/** |
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* @irq: An array of interrupts, each PHY's interrupt at the index |
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* matching its address |
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*/ |
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int irq[PHY_MAX_ADDR]; |
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/** @reset_delay_us: GPIO reset pulse width in microseconds */ |
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int reset_delay_us; |
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/** @reset_post_delay_us: GPIO reset deassert delay in microseconds */ |
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int reset_post_delay_us; |
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/** @reset_gpiod: Reset GPIO descriptor pointer */ |
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struct gpio_desc *reset_gpiod; |
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/** @probe_capabilities: bus capabilities, used for probing */ |
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enum { |
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MDIOBUS_NO_CAP = 0, |
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MDIOBUS_C22, |
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MDIOBUS_C45, |
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MDIOBUS_C22_C45, |
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} probe_capabilities; |
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/** @shared_lock: protect access to the shared element */ |
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struct mutex shared_lock; |
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/** @shared: shared state across different PHYs */ |
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struct phy_package_shared *shared[PHY_MAX_ADDR]; |
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}; |
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#define to_mii_bus(d) container_of(d, struct mii_bus, dev) |
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struct mii_bus *mdiobus_alloc_size(size_t size); |
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/** |
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* mdiobus_alloc - Allocate an MDIO bus structure |
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* |
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* The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready |
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* for the driver to register the bus. |
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*/ |
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static inline struct mii_bus *mdiobus_alloc(void) |
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{ |
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return mdiobus_alloc_size(0); |
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} |
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int __mdiobus_register(struct mii_bus *bus, struct module *owner); |
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int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus, |
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struct module *owner); |
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#define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE) |
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#define devm_mdiobus_register(dev, bus) \ |
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__devm_mdiobus_register(dev, bus, THIS_MODULE) |
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void mdiobus_unregister(struct mii_bus *bus); |
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void mdiobus_free(struct mii_bus *bus); |
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struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv); |
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static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev) |
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{ |
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return devm_mdiobus_alloc_size(dev, 0); |
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} |
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struct mii_bus *mdio_find_bus(const char *mdio_name); |
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struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); |
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#define PHY_INTERRUPT_DISABLED false |
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#define PHY_INTERRUPT_ENABLED true |
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/** |
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* enum phy_state - PHY state machine states: |
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* |
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* @PHY_DOWN: PHY device and driver are not ready for anything. probe |
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* should be called if and only if the PHY is in this state, |
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* given that the PHY device exists. |
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* - PHY driver probe function will set the state to @PHY_READY |
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* |
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* @PHY_READY: PHY is ready to send and receive packets, but the |
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* controller is not. By default, PHYs which do not implement |
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* probe will be set to this state by phy_probe(). |
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* - start will set the state to UP |
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* |
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* @PHY_UP: The PHY and attached device are ready to do work. |
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* Interrupts should be started here. |
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* - timer moves to @PHY_NOLINK or @PHY_RUNNING |
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* |
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* @PHY_NOLINK: PHY is up, but not currently plugged in. |
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* - irq or timer will set @PHY_RUNNING if link comes back |
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* - phy_stop moves to @PHY_HALTED |
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* |
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* @PHY_RUNNING: PHY is currently up, running, and possibly sending |
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* and/or receiving packets |
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* - irq or timer will set @PHY_NOLINK if link goes down |
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* - phy_stop moves to @PHY_HALTED |
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* |
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* @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending |
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* is not expected to work, carrier will be indicated as down. PHY will be |
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* poll once per second, or on interrupt for it current state. |
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* Once complete, move to UP to restart the PHY. |
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* - phy_stop aborts the running test and moves to @PHY_HALTED |
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* |
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* @PHY_HALTED: PHY is up, but no polling or interrupts are done. Or |
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* PHY is in an error state. |
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* - phy_start moves to @PHY_UP |
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*/ |
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enum phy_state { |
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PHY_DOWN = 0, |
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PHY_READY, |
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PHY_HALTED, |
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PHY_UP, |
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PHY_RUNNING, |
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PHY_NOLINK, |
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PHY_CABLETEST, |
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}; |
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#define MDIO_MMD_NUM 32 |
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|
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/** |
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* struct phy_c45_device_ids - 802.3-c45 Device Identifiers |
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* @devices_in_package: IEEE 802.3 devices in package register value. |
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* @mmds_present: bit vector of MMDs present. |
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* @device_ids: The device identifer for each present device. |
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*/ |
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struct phy_c45_device_ids { |
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u32 devices_in_package; |
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u32 mmds_present; |
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u32 device_ids[MDIO_MMD_NUM]; |
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}; |
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|
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struct macsec_context; |
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struct macsec_ops; |
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|
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/** |
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* struct phy_device - An instance of a PHY |
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* |
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* @mdio: MDIO bus this PHY is on |
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* @drv: Pointer to the driver for this PHY instance |
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* @phy_id: UID for this device found during discovery |
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* @c45_ids: 802.3-c45 Device Identifiers if is_c45. |
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* @is_c45: Set to true if this PHY uses clause 45 addressing. |
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* @is_internal: Set to true if this PHY is internal to a MAC. |
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* @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc. |
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* @is_gigabit_capable: Set to true if PHY supports 1000Mbps |
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* @has_fixups: Set to true if this PHY has fixups/quirks. |
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* @suspended: Set to true if this PHY has been suspended successfully. |
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* @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus. |
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* @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. |
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* @loopback_enabled: Set true if this PHY has been loopbacked successfully. |
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* @downshifted_rate: Set true if link speed has been downshifted. |
|
* @is_on_sfp_module: Set true if PHY is located on an SFP module. |
|
* @mac_managed_pm: Set true if MAC driver takes of suspending/resuming PHY |
|
* @state: State of the PHY for management purposes |
|
* @dev_flags: Device-specific flags used by the PHY driver. |
|
* @irq: IRQ number of the PHY's interrupt (-1 if none) |
|
* @phy_timer: The timer for handling the state machine |
|
* @phylink: Pointer to phylink instance for this PHY |
|
* @sfp_bus_attached: Flag indicating whether the SFP bus has been attached |
|
* @sfp_bus: SFP bus attached to this PHY's fiber port |
|
* @attached_dev: The attached enet driver's device instance ptr |
|
* @adjust_link: Callback for the enet controller to respond to changes: in the |
|
* link state. |
|
* @phy_link_change: Callback for phylink for notification of link change |
|
* @macsec_ops: MACsec offloading ops. |
|
* |
|
* @speed: Current link speed |
|
* @duplex: Current duplex |
|
* @port: Current port |
|
* @pause: Current pause |
|
* @asym_pause: Current asymmetric pause |
|
* @supported: Combined MAC/PHY supported linkmodes |
|
* @advertising: Currently advertised linkmodes |
|
* @adv_old: Saved advertised while power saving for WoL |
|
* @lp_advertising: Current link partner advertised linkmodes |
|
* @eee_broken_modes: Energy efficient ethernet modes which should be prohibited |
|
* @autoneg: Flag autoneg being used |
|
* @link: Current link state |
|
* @autoneg_complete: Flag auto negotiation of the link has completed |
|
* @mdix: Current crossover |
|
* @mdix_ctrl: User setting of crossover |
|
* @interrupts: Flag interrupts have been enabled |
|
* @interface: enum phy_interface_t value |
|
* @skb: Netlink message for cable diagnostics |
|
* @nest: Netlink nest used for cable diagnostics |
|
* @ehdr: nNtlink header for cable diagnostics |
|
* @phy_led_triggers: Array of LED triggers |
|
* @phy_num_led_triggers: Number of triggers in @phy_led_triggers |
|
* @led_link_trigger: LED trigger for link up/down |
|
* @last_triggered: last LED trigger for link speed |
|
* @master_slave_set: User requested master/slave configuration |
|
* @master_slave_get: Current master/slave advertisement |
|
* @master_slave_state: Current master/slave configuration |
|
* @mii_ts: Pointer to time stamper callbacks |
|
* @lock: Mutex for serialization access to PHY |
|
* @state_queue: Work queue for state machine |
|
* @shared: Pointer to private data shared by phys in one package |
|
* @priv: Pointer to driver private data |
|
* |
|
* interrupts currently only supports enabled or disabled, |
|
* but could be changed in the future to support enabling |
|
* and disabling specific interrupts |
|
* |
|
* Contains some infrastructure for polling and interrupt |
|
* handling, as well as handling shifts in PHY hardware state |
|
*/ |
|
struct phy_device { |
|
struct mdio_device mdio; |
|
|
|
/* Information about the PHY type */ |
|
/* And management functions */ |
|
struct phy_driver *drv; |
|
|
|
u32 phy_id; |
|
|
|
struct phy_c45_device_ids c45_ids; |
|
unsigned is_c45:1; |
|
unsigned is_internal:1; |
|
unsigned is_pseudo_fixed_link:1; |
|
unsigned is_gigabit_capable:1; |
|
unsigned has_fixups:1; |
|
unsigned suspended:1; |
|
unsigned suspended_by_mdio_bus:1; |
|
unsigned sysfs_links:1; |
|
unsigned loopback_enabled:1; |
|
unsigned downshifted_rate:1; |
|
unsigned is_on_sfp_module:1; |
|
unsigned mac_managed_pm:1; |
|
|
|
unsigned autoneg:1; |
|
/* The most recently read link state */ |
|
unsigned link:1; |
|
unsigned autoneg_complete:1; |
|
|
|
/* Interrupts are enabled */ |
|
unsigned interrupts:1; |
|
|
|
enum phy_state state; |
|
|
|
u32 dev_flags; |
|
|
|
phy_interface_t interface; |
|
|
|
/* |
|
* forced speed & duplex (no autoneg) |
|
* partner speed & duplex & pause (autoneg) |
|
*/ |
|
int speed; |
|
int duplex; |
|
int port; |
|
int pause; |
|
int asym_pause; |
|
u8 master_slave_get; |
|
u8 master_slave_set; |
|
u8 master_slave_state; |
|
|
|
/* Union of PHY and Attached devices' supported link modes */ |
|
/* See ethtool.h for more info */ |
|
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported); |
|
__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); |
|
__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); |
|
/* used with phy_speed_down */ |
|
__ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old); |
|
|
|
/* Energy efficient ethernet modes which should be prohibited */ |
|
u32 eee_broken_modes; |
|
|
|
#ifdef CONFIG_LED_TRIGGER_PHY |
|
struct phy_led_trigger *phy_led_triggers; |
|
unsigned int phy_num_led_triggers; |
|
struct phy_led_trigger *last_triggered; |
|
|
|
struct phy_led_trigger *led_link_trigger; |
|
#endif |
|
|
|
/* |
|
* Interrupt number for this PHY |
|
* -1 means no interrupt |
|
*/ |
|
int irq; |
|
|
|
/* private data pointer */ |
|
/* For use by PHYs to maintain extra state */ |
|
void *priv; |
|
|
|
/* shared data pointer */ |
|
/* For use by PHYs inside the same package that need a shared state. */ |
|
struct phy_package_shared *shared; |
|
|
|
/* Reporting cable test results */ |
|
struct sk_buff *skb; |
|
void *ehdr; |
|
struct nlattr *nest; |
|
|
|
/* Interrupt and Polling infrastructure */ |
|
struct delayed_work state_queue; |
|
|
|
struct mutex lock; |
|
|
|
/* This may be modified under the rtnl lock */ |
|
bool sfp_bus_attached; |
|
struct sfp_bus *sfp_bus; |
|
struct phylink *phylink; |
|
struct net_device *attached_dev; |
|
struct mii_timestamper *mii_ts; |
|
|
|
u8 mdix; |
|
u8 mdix_ctrl; |
|
|
|
void (*phy_link_change)(struct phy_device *phydev, bool up); |
|
void (*adjust_link)(struct net_device *dev); |
|
|
|
#if IS_ENABLED(CONFIG_MACSEC) |
|
/* MACsec management functions */ |
|
const struct macsec_ops *macsec_ops; |
|
#endif |
|
}; |
|
|
|
static inline struct phy_device *to_phy_device(const struct device *dev) |
|
{ |
|
return container_of(to_mdio_device(dev), struct phy_device, mdio); |
|
} |
|
|
|
/** |
|
* struct phy_tdr_config - Configuration of a TDR raw test |
|
* |
|
* @first: Distance for first data collection point |
|
* @last: Distance for last data collection point |
|
* @step: Step between data collection points |
|
* @pair: Bitmap of cable pairs to collect data for |
|
* |
|
* A structure containing possible configuration parameters |
|
* for a TDR cable test. The driver does not need to implement |
|
* all the parameters, but should report what is actually used. |
|
* All distances are in centimeters. |
|
*/ |
|
struct phy_tdr_config { |
|
u32 first; |
|
u32 last; |
|
u32 step; |
|
s8 pair; |
|
}; |
|
#define PHY_PAIR_ALL -1 |
|
|
|
/** |
|
* struct phy_driver - Driver structure for a particular PHY type |
|
* |
|
* @mdiodrv: Data common to all MDIO devices |
|
* @phy_id: The result of reading the UID registers of this PHY |
|
* type, and ANDing them with the phy_id_mask. This driver |
|
* only works for PHYs with IDs which match this field |
|
* @name: The friendly name of this PHY type |
|
* @phy_id_mask: Defines the important bits of the phy_id |
|
* @features: A mandatory list of features (speed, duplex, etc) |
|
* supported by this PHY |
|
* @flags: A bitfield defining certain other features this PHY |
|
* supports (like interrupts) |
|
* @driver_data: Static driver data |
|
* |
|
* All functions are optional. If config_aneg or read_status |
|
* are not implemented, the phy core uses the genphy versions. |
|
* Note that none of these functions should be called from |
|
* interrupt time. The goal is for the bus read/write functions |
|
* to be able to block when the bus transaction is happening, |
|
* and be freed up by an interrupt (The MPC85xx has this ability, |
|
* though it is not currently supported in the driver). |
|
*/ |
|
struct phy_driver { |
|
struct mdio_driver_common mdiodrv; |
|
u32 phy_id; |
|
char *name; |
|
u32 phy_id_mask; |
|
const unsigned long * const features; |
|
u32 flags; |
|
const void *driver_data; |
|
|
|
/** |
|
* @soft_reset: Called to issue a PHY software reset |
|
*/ |
|
int (*soft_reset)(struct phy_device *phydev); |
|
|
|
/** |
|
* @config_init: Called to initialize the PHY, |
|
* including after a reset |
|
*/ |
|
int (*config_init)(struct phy_device *phydev); |
|
|
|
/** |
|
* @probe: Called during discovery. Used to set |
|
* up device-specific structures, if any |
|
*/ |
|
int (*probe)(struct phy_device *phydev); |
|
|
|
/** |
|
* @get_features: Probe the hardware to determine what |
|
* abilities it has. Should only set phydev->supported. |
|
*/ |
|
int (*get_features)(struct phy_device *phydev); |
|
|
|
/* PHY Power Management */ |
|
/** @suspend: Suspend the hardware, saving state if needed */ |
|
int (*suspend)(struct phy_device *phydev); |
|
/** @resume: Resume the hardware, restoring state if needed */ |
|
int (*resume)(struct phy_device *phydev); |
|
|
|
/** |
|
* @config_aneg: Configures the advertisement and resets |
|
* autonegotiation if phydev->autoneg is on, |
|
* forces the speed to the current settings in phydev |
|
* if phydev->autoneg is off |
|
*/ |
|
int (*config_aneg)(struct phy_device *phydev); |
|
|
|
/** @aneg_done: Determines the auto negotiation result */ |
|
int (*aneg_done)(struct phy_device *phydev); |
|
|
|
/** @read_status: Determines the negotiated speed and duplex */ |
|
int (*read_status)(struct phy_device *phydev); |
|
|
|
/** |
|
* @config_intr: Enables or disables interrupts. |
|
* It should also clear any pending interrupts prior to enabling the |
|
* IRQs and after disabling them. |
|
*/ |
|
int (*config_intr)(struct phy_device *phydev); |
|
|
|
/** @handle_interrupt: Override default interrupt handling */ |
|
irqreturn_t (*handle_interrupt)(struct phy_device *phydev); |
|
|
|
/** @remove: Clears up any memory if needed */ |
|
void (*remove)(struct phy_device *phydev); |
|
|
|
/** |
|
* @match_phy_device: Returns true if this is a suitable |
|
* driver for the given phydev. If NULL, matching is based on |
|
* phy_id and phy_id_mask. |
|
*/ |
|
int (*match_phy_device)(struct phy_device *phydev); |
|
|
|
/** |
|
* @set_wol: Some devices (e.g. qnap TS-119P II) require PHY |
|
* register changes to enable Wake on LAN, so set_wol is |
|
* provided to be called in the ethernet driver's set_wol |
|
* function. |
|
*/ |
|
int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); |
|
|
|
/** |
|
* @get_wol: See set_wol, but for checking whether Wake on LAN |
|
* is enabled. |
|
*/ |
|
void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); |
|
|
|
/** |
|
* @link_change_notify: Called to inform a PHY device driver |
|
* when the core is about to change the link state. This |
|
* callback is supposed to be used as fixup hook for drivers |
|
* that need to take action when the link state |
|
* changes. Drivers are by no means allowed to mess with the |
|
* PHY device structure in their implementations. |
|
*/ |
|
void (*link_change_notify)(struct phy_device *dev); |
|
|
|
/** |
|
* @read_mmd: PHY specific driver override for reading a MMD |
|
* register. This function is optional for PHY specific |
|
* drivers. When not provided, the default MMD read function |
|
* will be used by phy_read_mmd(), which will use either a |
|
* direct read for Clause 45 PHYs or an indirect read for |
|
* Clause 22 PHYs. devnum is the MMD device number within the |
|
* PHY device, regnum is the register within the selected MMD |
|
* device. |
|
*/ |
|
int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum); |
|
|
|
/** |
|
* @write_mmd: PHY specific driver override for writing a MMD |
|
* register. This function is optional for PHY specific |
|
* drivers. When not provided, the default MMD write function |
|
* will be used by phy_write_mmd(), which will use either a |
|
* direct write for Clause 45 PHYs, or an indirect write for |
|
* Clause 22 PHYs. devnum is the MMD device number within the |
|
* PHY device, regnum is the register within the selected MMD |
|
* device. val is the value to be written. |
|
*/ |
|
int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum, |
|
u16 val); |
|
|
|
/** @read_page: Return the current PHY register page number */ |
|
int (*read_page)(struct phy_device *dev); |
|
/** @write_page: Set the current PHY register page number */ |
|
int (*write_page)(struct phy_device *dev, int page); |
|
|
|
/** |
|
* @module_info: Get the size and type of the eeprom contained |
|
* within a plug-in module |
|
*/ |
|
int (*module_info)(struct phy_device *dev, |
|
struct ethtool_modinfo *modinfo); |
|
|
|
/** |
|
* @module_eeprom: Get the eeprom information from the plug-in |
|
* module |
|
*/ |
|
int (*module_eeprom)(struct phy_device *dev, |
|
struct ethtool_eeprom *ee, u8 *data); |
|
|
|
/** @cable_test_start: Start a cable test */ |
|
int (*cable_test_start)(struct phy_device *dev); |
|
|
|
/** @cable_test_tdr_start: Start a raw TDR cable test */ |
|
int (*cable_test_tdr_start)(struct phy_device *dev, |
|
const struct phy_tdr_config *config); |
|
|
|
/** |
|
* @cable_test_get_status: Once per second, or on interrupt, |
|
* request the status of the test. |
|
*/ |
|
int (*cable_test_get_status)(struct phy_device *dev, bool *finished); |
|
|
|
/* Get statistics from the PHY using ethtool */ |
|
/** @get_sset_count: Number of statistic counters */ |
|
int (*get_sset_count)(struct phy_device *dev); |
|
/** @get_strings: Names of the statistic counters */ |
|
void (*get_strings)(struct phy_device *dev, u8 *data); |
|
/** @get_stats: Return the statistic counter values */ |
|
void (*get_stats)(struct phy_device *dev, |
|
struct ethtool_stats *stats, u64 *data); |
|
|
|
/* Get and Set PHY tunables */ |
|
/** @get_tunable: Return the value of a tunable */ |
|
int (*get_tunable)(struct phy_device *dev, |
|
struct ethtool_tunable *tuna, void *data); |
|
/** @set_tunable: Set the value of a tunable */ |
|
int (*set_tunable)(struct phy_device *dev, |
|
struct ethtool_tunable *tuna, |
|
const void *data); |
|
/** @set_loopback: Set the loopback mood of the PHY */ |
|
int (*set_loopback)(struct phy_device *dev, bool enable); |
|
/** @get_sqi: Get the signal quality indication */ |
|
int (*get_sqi)(struct phy_device *dev); |
|
/** @get_sqi_max: Get the maximum signal quality indication */ |
|
int (*get_sqi_max)(struct phy_device *dev); |
|
}; |
|
#define to_phy_driver(d) container_of(to_mdio_common_driver(d), \ |
|
struct phy_driver, mdiodrv) |
|
|
|
#define PHY_ANY_ID "MATCH ANY PHY" |
|
#define PHY_ANY_UID 0xffffffff |
|
|
|
#define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0) |
|
#define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4) |
|
#define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10) |
|
|
|
/* A Structure for boards to register fixups with the PHY Lib */ |
|
struct phy_fixup { |
|
struct list_head list; |
|
char bus_id[MII_BUS_ID_SIZE + 3]; |
|
u32 phy_uid; |
|
u32 phy_uid_mask; |
|
int (*run)(struct phy_device *phydev); |
|
}; |
|
|
|
const char *phy_speed_to_str(int speed); |
|
const char *phy_duplex_to_str(unsigned int duplex); |
|
|
|
/* A structure for mapping a particular speed and duplex |
|
* combination to a particular SUPPORTED and ADVERTISED value |
|
*/ |
|
struct phy_setting { |
|
u32 speed; |
|
u8 duplex; |
|
u8 bit; |
|
}; |
|
|
|
const struct phy_setting * |
|
phy_lookup_setting(int speed, int duplex, const unsigned long *mask, |
|
bool exact); |
|
size_t phy_speeds(unsigned int *speeds, size_t size, |
|
unsigned long *mask); |
|
void of_set_phy_supported(struct phy_device *phydev); |
|
void of_set_phy_eee_broken(struct phy_device *phydev); |
|
int phy_speed_down_core(struct phy_device *phydev); |
|
|
|
/** |
|
* phy_is_started - Convenience function to check whether PHY is started |
|
* @phydev: The phy_device struct |
|
*/ |
|
static inline bool phy_is_started(struct phy_device *phydev) |
|
{ |
|
return phydev->state >= PHY_UP; |
|
} |
|
|
|
void phy_resolve_aneg_pause(struct phy_device *phydev); |
|
void phy_resolve_aneg_linkmode(struct phy_device *phydev); |
|
void phy_check_downshift(struct phy_device *phydev); |
|
|
|
/** |
|
* phy_read - Convenience function for reading a given PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to read |
|
* |
|
* NOTE: MUST NOT be called from interrupt context, |
|
* because the bus read/write functions may wait for an interrupt |
|
* to conclude the operation. |
|
*/ |
|
static inline int phy_read(struct phy_device *phydev, u32 regnum) |
|
{ |
|
return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); |
|
} |
|
|
|
#define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \ |
|
timeout_us, sleep_before_read) \ |
|
({ \ |
|
int __ret = read_poll_timeout(phy_read, val, (cond) || val < 0, \ |
|
sleep_us, timeout_us, sleep_before_read, phydev, regnum); \ |
|
if (val < 0) \ |
|
__ret = val; \ |
|
if (__ret) \ |
|
phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \ |
|
__ret; \ |
|
}) |
|
|
|
|
|
/** |
|
* __phy_read - convenience function for reading a given PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to read |
|
* |
|
* The caller must have taken the MDIO bus lock. |
|
*/ |
|
static inline int __phy_read(struct phy_device *phydev, u32 regnum) |
|
{ |
|
return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); |
|
} |
|
|
|
/** |
|
* phy_write - Convenience function for writing a given PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to write |
|
* @val: value to write to @regnum |
|
* |
|
* NOTE: MUST NOT be called from interrupt context, |
|
* because the bus read/write functions may wait for an interrupt |
|
* to conclude the operation. |
|
*/ |
|
static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val) |
|
{ |
|
return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val); |
|
} |
|
|
|
/** |
|
* __phy_write - Convenience function for writing a given PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to write |
|
* @val: value to write to @regnum |
|
* |
|
* The caller must have taken the MDIO bus lock. |
|
*/ |
|
static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val) |
|
{ |
|
return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, |
|
val); |
|
} |
|
|
|
/** |
|
* __phy_modify_changed() - Convenience function for modifying a PHY register |
|
* @phydev: a pointer to a &struct phy_device |
|
* @regnum: register number |
|
* @mask: bit mask of bits to clear |
|
* @set: bit mask of bits to set |
|
* |
|
* Unlocked helper function which allows a PHY register to be modified as |
|
* new register value = (old register value & ~mask) | set |
|
* |
|
* Returns negative errno, 0 if there was no change, and 1 in case of change |
|
*/ |
|
static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum, |
|
u16 mask, u16 set) |
|
{ |
|
return __mdiobus_modify_changed(phydev->mdio.bus, phydev->mdio.addr, |
|
regnum, mask, set); |
|
} |
|
|
|
/* |
|
* phy_read_mmd - Convenience function for reading a register |
|
* from an MMD on a given PHY. |
|
*/ |
|
int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); |
|
|
|
/** |
|
* phy_read_mmd_poll_timeout - Periodically poll a PHY register until a |
|
* condition is met or a timeout occurs |
|
* |
|
* @phydev: The phy_device struct |
|
* @devaddr: The MMD to read from |
|
* @regnum: The register on the MMD to read |
|
* @val: Variable to read the register into |
|
* @cond: Break condition (usually involving @val) |
|
* @sleep_us: Maximum time to sleep between reads in us (0 |
|
* tight-loops). Should be less than ~20ms since usleep_range |
|
* is used (see Documentation/timers/timers-howto.rst). |
|
* @timeout_us: Timeout in us, 0 means never timeout |
|
* @sleep_before_read: if it is true, sleep @sleep_us before read. |
|
* Returns 0 on success and -ETIMEDOUT upon a timeout. In either |
|
* case, the last read value at @args is stored in @val. Must not |
|
* be called from atomic context if sleep_us or timeout_us are used. |
|
*/ |
|
#define phy_read_mmd_poll_timeout(phydev, devaddr, regnum, val, cond, \ |
|
sleep_us, timeout_us, sleep_before_read) \ |
|
({ \ |
|
int __ret = read_poll_timeout(phy_read_mmd, val, (cond) || val < 0, \ |
|
sleep_us, timeout_us, sleep_before_read, \ |
|
phydev, devaddr, regnum); \ |
|
if (val < 0) \ |
|
__ret = val; \ |
|
if (__ret) \ |
|
phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \ |
|
__ret; \ |
|
}) |
|
|
|
/* |
|
* __phy_read_mmd - Convenience function for reading a register |
|
* from an MMD on a given PHY. |
|
*/ |
|
int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); |
|
|
|
/* |
|
* phy_write_mmd - Convenience function for writing a register |
|
* on an MMD on a given PHY. |
|
*/ |
|
int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); |
|
|
|
/* |
|
* __phy_write_mmd - Convenience function for writing a register |
|
* on an MMD on a given PHY. |
|
*/ |
|
int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); |
|
|
|
int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, |
|
u16 set); |
|
int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, |
|
u16 set); |
|
int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set); |
|
int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set); |
|
|
|
int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum, |
|
u16 mask, u16 set); |
|
int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum, |
|
u16 mask, u16 set); |
|
int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum, |
|
u16 mask, u16 set); |
|
int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum, |
|
u16 mask, u16 set); |
|
|
|
/** |
|
* __phy_set_bits - Convenience function for setting bits in a PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to write |
|
* @val: bits to set |
|
* |
|
* The caller must have taken the MDIO bus lock. |
|
*/ |
|
static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val) |
|
{ |
|
return __phy_modify(phydev, regnum, 0, val); |
|
} |
|
|
|
/** |
|
* __phy_clear_bits - Convenience function for clearing bits in a PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to write |
|
* @val: bits to clear |
|
* |
|
* The caller must have taken the MDIO bus lock. |
|
*/ |
|
static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum, |
|
u16 val) |
|
{ |
|
return __phy_modify(phydev, regnum, val, 0); |
|
} |
|
|
|
/** |
|
* phy_set_bits - Convenience function for setting bits in a PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to write |
|
* @val: bits to set |
|
*/ |
|
static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val) |
|
{ |
|
return phy_modify(phydev, regnum, 0, val); |
|
} |
|
|
|
/** |
|
* phy_clear_bits - Convenience function for clearing bits in a PHY register |
|
* @phydev: the phy_device struct |
|
* @regnum: register number to write |
|
* @val: bits to clear |
|
*/ |
|
static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val) |
|
{ |
|
return phy_modify(phydev, regnum, val, 0); |
|
} |
|
|
|
/** |
|
* __phy_set_bits_mmd - Convenience function for setting bits in a register |
|
* on MMD |
|
* @phydev: the phy_device struct |
|
* @devad: the MMD containing register to modify |
|
* @regnum: register number to modify |
|
* @val: bits to set |
|
* |
|
* The caller must have taken the MDIO bus lock. |
|
*/ |
|
static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad, |
|
u32 regnum, u16 val) |
|
{ |
|
return __phy_modify_mmd(phydev, devad, regnum, 0, val); |
|
} |
|
|
|
/** |
|
* __phy_clear_bits_mmd - Convenience function for clearing bits in a register |
|
* on MMD |
|
* @phydev: the phy_device struct |
|
* @devad: the MMD containing register to modify |
|
* @regnum: register number to modify |
|
* @val: bits to clear |
|
* |
|
* The caller must have taken the MDIO bus lock. |
|
*/ |
|
static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad, |
|
u32 regnum, u16 val) |
|
{ |
|
return __phy_modify_mmd(phydev, devad, regnum, val, 0); |
|
} |
|
|
|
/** |
|
* phy_set_bits_mmd - Convenience function for setting bits in a register |
|
* on MMD |
|
* @phydev: the phy_device struct |
|
* @devad: the MMD containing register to modify |
|
* @regnum: register number to modify |
|
* @val: bits to set |
|
*/ |
|
static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad, |
|
u32 regnum, u16 val) |
|
{ |
|
return phy_modify_mmd(phydev, devad, regnum, 0, val); |
|
} |
|
|
|
/** |
|
* phy_clear_bits_mmd - Convenience function for clearing bits in a register |
|
* on MMD |
|
* @phydev: the phy_device struct |
|
* @devad: the MMD containing register to modify |
|
* @regnum: register number to modify |
|
* @val: bits to clear |
|
*/ |
|
static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad, |
|
u32 regnum, u16 val) |
|
{ |
|
return phy_modify_mmd(phydev, devad, regnum, val, 0); |
|
} |
|
|
|
/** |
|
* phy_interrupt_is_valid - Convenience function for testing a given PHY irq |
|
* @phydev: the phy_device struct |
|
* |
|
* NOTE: must be kept in sync with addition/removal of PHY_POLL and |
|
* PHY_MAC_INTERRUPT |
|
*/ |
|
static inline bool phy_interrupt_is_valid(struct phy_device *phydev) |
|
{ |
|
return phydev->irq != PHY_POLL && phydev->irq != PHY_MAC_INTERRUPT; |
|
} |
|
|
|
/** |
|
* phy_polling_mode - Convenience function for testing whether polling is |
|
* used to detect PHY status changes |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_polling_mode(struct phy_device *phydev) |
|
{ |
|
if (phydev->state == PHY_CABLETEST) |
|
if (phydev->drv->flags & PHY_POLL_CABLE_TEST) |
|
return true; |
|
|
|
return phydev->irq == PHY_POLL; |
|
} |
|
|
|
/** |
|
* phy_has_hwtstamp - Tests whether a PHY time stamp configuration. |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_has_hwtstamp(struct phy_device *phydev) |
|
{ |
|
return phydev && phydev->mii_ts && phydev->mii_ts->hwtstamp; |
|
} |
|
|
|
/** |
|
* phy_has_rxtstamp - Tests whether a PHY supports receive time stamping. |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_has_rxtstamp(struct phy_device *phydev) |
|
{ |
|
return phydev && phydev->mii_ts && phydev->mii_ts->rxtstamp; |
|
} |
|
|
|
/** |
|
* phy_has_tsinfo - Tests whether a PHY reports time stamping and/or |
|
* PTP hardware clock capabilities. |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_has_tsinfo(struct phy_device *phydev) |
|
{ |
|
return phydev && phydev->mii_ts && phydev->mii_ts->ts_info; |
|
} |
|
|
|
/** |
|
* phy_has_txtstamp - Tests whether a PHY supports transmit time stamping. |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_has_txtstamp(struct phy_device *phydev) |
|
{ |
|
return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp; |
|
} |
|
|
|
static inline int phy_hwtstamp(struct phy_device *phydev, struct ifreq *ifr) |
|
{ |
|
return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr); |
|
} |
|
|
|
static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb, |
|
int type) |
|
{ |
|
return phydev->mii_ts->rxtstamp(phydev->mii_ts, skb, type); |
|
} |
|
|
|
static inline int phy_ts_info(struct phy_device *phydev, |
|
struct ethtool_ts_info *tsinfo) |
|
{ |
|
return phydev->mii_ts->ts_info(phydev->mii_ts, tsinfo); |
|
} |
|
|
|
static inline void phy_txtstamp(struct phy_device *phydev, struct sk_buff *skb, |
|
int type) |
|
{ |
|
phydev->mii_ts->txtstamp(phydev->mii_ts, skb, type); |
|
} |
|
|
|
/** |
|
* phy_is_internal - Convenience function for testing if a PHY is internal |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_is_internal(struct phy_device *phydev) |
|
{ |
|
return phydev->is_internal; |
|
} |
|
|
|
/** |
|
* phy_on_sfp - Convenience function for testing if a PHY is on an SFP module |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_on_sfp(struct phy_device *phydev) |
|
{ |
|
return phydev->is_on_sfp_module; |
|
} |
|
|
|
/** |
|
* phy_interface_mode_is_rgmii - Convenience function for testing if a |
|
* PHY interface mode is RGMII (all variants) |
|
* @mode: the &phy_interface_t enum |
|
*/ |
|
static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode) |
|
{ |
|
return mode >= PHY_INTERFACE_MODE_RGMII && |
|
mode <= PHY_INTERFACE_MODE_RGMII_TXID; |
|
}; |
|
|
|
/** |
|
* phy_interface_mode_is_8023z() - does the PHY interface mode use 802.3z |
|
* negotiation |
|
* @mode: one of &enum phy_interface_t |
|
* |
|
* Returns true if the PHY interface mode uses the 16-bit negotiation |
|
* word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding) |
|
*/ |
|
static inline bool phy_interface_mode_is_8023z(phy_interface_t mode) |
|
{ |
|
return mode == PHY_INTERFACE_MODE_1000BASEX || |
|
mode == PHY_INTERFACE_MODE_2500BASEX; |
|
} |
|
|
|
/** |
|
* phy_interface_is_rgmii - Convenience function for testing if a PHY interface |
|
* is RGMII (all variants) |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_interface_is_rgmii(struct phy_device *phydev) |
|
{ |
|
return phy_interface_mode_is_rgmii(phydev->interface); |
|
}; |
|
|
|
/** |
|
* phy_is_pseudo_fixed_link - Convenience function for testing if this |
|
* PHY is the CPU port facing side of an Ethernet switch, or similar. |
|
* @phydev: the phy_device struct |
|
*/ |
|
static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev) |
|
{ |
|
return phydev->is_pseudo_fixed_link; |
|
} |
|
|
|
int phy_save_page(struct phy_device *phydev); |
|
int phy_select_page(struct phy_device *phydev, int page); |
|
int phy_restore_page(struct phy_device *phydev, int oldpage, int ret); |
|
int phy_read_paged(struct phy_device *phydev, int page, u32 regnum); |
|
int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val); |
|
int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum, |
|
u16 mask, u16 set); |
|
int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum, |
|
u16 mask, u16 set); |
|
|
|
struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id, |
|
bool is_c45, |
|
struct phy_c45_device_ids *c45_ids); |
|
#if IS_ENABLED(CONFIG_PHYLIB) |
|
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); |
|
int phy_device_register(struct phy_device *phy); |
|
void phy_device_free(struct phy_device *phydev); |
|
#else |
|
static inline |
|
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45) |
|
{ |
|
return NULL; |
|
} |
|
|
|
static inline int phy_device_register(struct phy_device *phy) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline void phy_device_free(struct phy_device *phydev) { } |
|
#endif /* CONFIG_PHYLIB */ |
|
void phy_device_remove(struct phy_device *phydev); |
|
int phy_init_hw(struct phy_device *phydev); |
|
int phy_suspend(struct phy_device *phydev); |
|
int phy_resume(struct phy_device *phydev); |
|
int __phy_resume(struct phy_device *phydev); |
|
int phy_loopback(struct phy_device *phydev, bool enable); |
|
void phy_sfp_attach(void *upstream, struct sfp_bus *bus); |
|
void phy_sfp_detach(void *upstream, struct sfp_bus *bus); |
|
int phy_sfp_probe(struct phy_device *phydev, |
|
const struct sfp_upstream_ops *ops); |
|
struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, |
|
phy_interface_t interface); |
|
struct phy_device *phy_find_first(struct mii_bus *bus); |
|
int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, |
|
u32 flags, phy_interface_t interface); |
|
int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, |
|
void (*handler)(struct net_device *), |
|
phy_interface_t interface); |
|
struct phy_device *phy_connect(struct net_device *dev, const char *bus_id, |
|
void (*handler)(struct net_device *), |
|
phy_interface_t interface); |
|
void phy_disconnect(struct phy_device *phydev); |
|
void phy_detach(struct phy_device *phydev); |
|
void phy_start(struct phy_device *phydev); |
|
void phy_stop(struct phy_device *phydev); |
|
int phy_start_aneg(struct phy_device *phydev); |
|
int phy_aneg_done(struct phy_device *phydev); |
|
int phy_speed_down(struct phy_device *phydev, bool sync); |
|
int phy_speed_up(struct phy_device *phydev); |
|
|
|
int phy_restart_aneg(struct phy_device *phydev); |
|
int phy_reset_after_clk_enable(struct phy_device *phydev); |
|
|
|
#if IS_ENABLED(CONFIG_PHYLIB) |
|
int phy_start_cable_test(struct phy_device *phydev, |
|
struct netlink_ext_ack *extack); |
|
int phy_start_cable_test_tdr(struct phy_device *phydev, |
|
struct netlink_ext_ack *extack, |
|
const struct phy_tdr_config *config); |
|
#else |
|
static inline |
|
int phy_start_cable_test(struct phy_device *phydev, |
|
struct netlink_ext_ack *extack) |
|
{ |
|
NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support"); |
|
return -EOPNOTSUPP; |
|
} |
|
static inline |
|
int phy_start_cable_test_tdr(struct phy_device *phydev, |
|
struct netlink_ext_ack *extack, |
|
const struct phy_tdr_config *config) |
|
{ |
|
NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support"); |
|
return -EOPNOTSUPP; |
|
} |
|
#endif |
|
|
|
int phy_cable_test_result(struct phy_device *phydev, u8 pair, u16 result); |
|
int phy_cable_test_fault_length(struct phy_device *phydev, u8 pair, |
|
u16 cm); |
|
|
|
static inline void phy_device_reset(struct phy_device *phydev, int value) |
|
{ |
|
mdio_device_reset(&phydev->mdio, value); |
|
} |
|
|
|
#define phydev_err(_phydev, format, args...) \ |
|
dev_err(&_phydev->mdio.dev, format, ##args) |
|
|
|
#define phydev_info(_phydev, format, args...) \ |
|
dev_info(&_phydev->mdio.dev, format, ##args) |
|
|
|
#define phydev_warn(_phydev, format, args...) \ |
|
dev_warn(&_phydev->mdio.dev, format, ##args) |
|
|
|
#define phydev_dbg(_phydev, format, args...) \ |
|
dev_dbg(&_phydev->mdio.dev, format, ##args) |
|
|
|
static inline const char *phydev_name(const struct phy_device *phydev) |
|
{ |
|
return dev_name(&phydev->mdio.dev); |
|
} |
|
|
|
static inline void phy_lock_mdio_bus(struct phy_device *phydev) |
|
{ |
|
mutex_lock(&phydev->mdio.bus->mdio_lock); |
|
} |
|
|
|
static inline void phy_unlock_mdio_bus(struct phy_device *phydev) |
|
{ |
|
mutex_unlock(&phydev->mdio.bus->mdio_lock); |
|
} |
|
|
|
void phy_attached_print(struct phy_device *phydev, const char *fmt, ...) |
|
__printf(2, 3); |
|
char *phy_attached_info_irq(struct phy_device *phydev) |
|
__malloc; |
|
void phy_attached_info(struct phy_device *phydev); |
|
|
|
/* Clause 22 PHY */ |
|
int genphy_read_abilities(struct phy_device *phydev); |
|
int genphy_setup_forced(struct phy_device *phydev); |
|
int genphy_restart_aneg(struct phy_device *phydev); |
|
int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart); |
|
int genphy_config_eee_advert(struct phy_device *phydev); |
|
int __genphy_config_aneg(struct phy_device *phydev, bool changed); |
|
int genphy_aneg_done(struct phy_device *phydev); |
|
int genphy_update_link(struct phy_device *phydev); |
|
int genphy_read_lpa(struct phy_device *phydev); |
|
int genphy_read_status_fixed(struct phy_device *phydev); |
|
int genphy_read_status(struct phy_device *phydev); |
|
int genphy_suspend(struct phy_device *phydev); |
|
int genphy_resume(struct phy_device *phydev); |
|
int genphy_loopback(struct phy_device *phydev, bool enable); |
|
int genphy_soft_reset(struct phy_device *phydev); |
|
irqreturn_t genphy_handle_interrupt_no_ack(struct phy_device *phydev); |
|
|
|
static inline int genphy_config_aneg(struct phy_device *phydev) |
|
{ |
|
return __genphy_config_aneg(phydev, false); |
|
} |
|
|
|
static inline int genphy_no_config_intr(struct phy_device *phydev) |
|
{ |
|
return 0; |
|
} |
|
int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad, |
|
u16 regnum); |
|
int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum, |
|
u16 regnum, u16 val); |
|
|
|
/* Clause 37 */ |
|
int genphy_c37_config_aneg(struct phy_device *phydev); |
|
int genphy_c37_read_status(struct phy_device *phydev); |
|
|
|
/* Clause 45 PHY */ |
|
int genphy_c45_restart_aneg(struct phy_device *phydev); |
|
int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart); |
|
int genphy_c45_aneg_done(struct phy_device *phydev); |
|
int genphy_c45_read_link(struct phy_device *phydev); |
|
int genphy_c45_read_lpa(struct phy_device *phydev); |
|
int genphy_c45_read_pma(struct phy_device *phydev); |
|
int genphy_c45_pma_setup_forced(struct phy_device *phydev); |
|
int genphy_c45_an_config_aneg(struct phy_device *phydev); |
|
int genphy_c45_an_disable_aneg(struct phy_device *phydev); |
|
int genphy_c45_read_mdix(struct phy_device *phydev); |
|
int genphy_c45_pma_read_abilities(struct phy_device *phydev); |
|
int genphy_c45_read_status(struct phy_device *phydev); |
|
int genphy_c45_config_aneg(struct phy_device *phydev); |
|
|
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/* Generic C45 PHY driver */ |
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extern struct phy_driver genphy_c45_driver; |
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/* The gen10g_* functions are the old Clause 45 stub */ |
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int gen10g_config_aneg(struct phy_device *phydev); |
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static inline int phy_read_status(struct phy_device *phydev) |
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{ |
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if (!phydev->drv) |
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return -EIO; |
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if (phydev->drv->read_status) |
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return phydev->drv->read_status(phydev); |
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else |
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return genphy_read_status(phydev); |
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} |
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void phy_driver_unregister(struct phy_driver *drv); |
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void phy_drivers_unregister(struct phy_driver *drv, int n); |
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int phy_driver_register(struct phy_driver *new_driver, struct module *owner); |
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int phy_drivers_register(struct phy_driver *new_driver, int n, |
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struct module *owner); |
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void phy_error(struct phy_device *phydev); |
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void phy_state_machine(struct work_struct *work); |
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void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies); |
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void phy_trigger_machine(struct phy_device *phydev); |
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void phy_mac_interrupt(struct phy_device *phydev); |
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void phy_start_machine(struct phy_device *phydev); |
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void phy_stop_machine(struct phy_device *phydev); |
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void phy_ethtool_ksettings_get(struct phy_device *phydev, |
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struct ethtool_link_ksettings *cmd); |
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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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int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); |
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int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); |
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int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd); |
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int phy_disable_interrupts(struct phy_device *phydev); |
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void phy_request_interrupt(struct phy_device *phydev); |
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void phy_free_interrupt(struct phy_device *phydev); |
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void phy_print_status(struct phy_device *phydev); |
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int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); |
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void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode); |
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void phy_advertise_supported(struct phy_device *phydev); |
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void phy_support_sym_pause(struct phy_device *phydev); |
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void phy_support_asym_pause(struct phy_device *phydev); |
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void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx, |
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bool autoneg); |
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void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx); |
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bool phy_validate_pause(struct phy_device *phydev, |
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struct ethtool_pauseparam *pp); |
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void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause); |
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s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev, |
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const int *delay_values, int size, bool is_rx); |
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void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv, |
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bool *tx_pause, bool *rx_pause); |
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int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, |
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int (*run)(struct phy_device *)); |
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int phy_register_fixup_for_id(const char *bus_id, |
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int (*run)(struct phy_device *)); |
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int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, |
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int (*run)(struct phy_device *)); |
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int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask); |
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int phy_unregister_fixup_for_id(const char *bus_id); |
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int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask); |
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int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); |
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int phy_get_eee_err(struct phy_device *phydev); |
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int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); |
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int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); |
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int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); |
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void phy_ethtool_get_wol(struct phy_device *phydev, |
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struct ethtool_wolinfo *wol); |
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int phy_ethtool_get_link_ksettings(struct net_device *ndev, |
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struct ethtool_link_ksettings *cmd); |
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int phy_ethtool_set_link_ksettings(struct net_device *ndev, |
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const struct ethtool_link_ksettings *cmd); |
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int phy_ethtool_nway_reset(struct net_device *ndev); |
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int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size); |
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void phy_package_leave(struct phy_device *phydev); |
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int devm_phy_package_join(struct device *dev, struct phy_device *phydev, |
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int addr, size_t priv_size); |
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#if IS_ENABLED(CONFIG_PHYLIB) |
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int __init mdio_bus_init(void); |
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void mdio_bus_exit(void); |
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#endif |
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int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data); |
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int phy_ethtool_get_sset_count(struct phy_device *phydev); |
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int phy_ethtool_get_stats(struct phy_device *phydev, |
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struct ethtool_stats *stats, u64 *data); |
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static inline int phy_package_read(struct phy_device *phydev, u32 regnum) |
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{ |
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struct phy_package_shared *shared = phydev->shared; |
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if (!shared) |
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return -EIO; |
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return mdiobus_read(phydev->mdio.bus, shared->addr, regnum); |
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} |
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static inline int __phy_package_read(struct phy_device *phydev, u32 regnum) |
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{ |
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struct phy_package_shared *shared = phydev->shared; |
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if (!shared) |
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return -EIO; |
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return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum); |
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} |
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static inline int phy_package_write(struct phy_device *phydev, |
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u32 regnum, u16 val) |
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{ |
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struct phy_package_shared *shared = phydev->shared; |
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if (!shared) |
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return -EIO; |
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return mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val); |
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} |
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static inline int __phy_package_write(struct phy_device *phydev, |
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u32 regnum, u16 val) |
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{ |
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struct phy_package_shared *shared = phydev->shared; |
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if (!shared) |
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return -EIO; |
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return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val); |
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} |
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static inline bool __phy_package_set_once(struct phy_device *phydev, |
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unsigned int b) |
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{ |
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struct phy_package_shared *shared = phydev->shared; |
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if (!shared) |
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return false; |
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return !test_and_set_bit(b, &shared->flags); |
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} |
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static inline bool phy_package_init_once(struct phy_device *phydev) |
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{ |
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return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE); |
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} |
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static inline bool phy_package_probe_once(struct phy_device *phydev) |
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{ |
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return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE); |
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} |
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extern struct bus_type mdio_bus_type; |
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struct mdio_board_info { |
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const char *bus_id; |
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char modalias[MDIO_NAME_SIZE]; |
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int mdio_addr; |
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const void *platform_data; |
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}; |
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#if IS_ENABLED(CONFIG_MDIO_DEVICE) |
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int mdiobus_register_board_info(const struct mdio_board_info *info, |
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unsigned int n); |
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#else |
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static inline int mdiobus_register_board_info(const struct mdio_board_info *i, |
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unsigned int n) |
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{ |
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return 0; |
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} |
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#endif |
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/** |
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* phy_module_driver() - Helper macro for registering PHY drivers |
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* @__phy_drivers: array of PHY drivers to register |
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* @__count: Numbers of members in array |
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* |
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* Helper macro for PHY drivers which do not do anything special in module |
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* init/exit. Each module may only use this macro once, and calling it |
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* replaces module_init() and module_exit(). |
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*/ |
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#define phy_module_driver(__phy_drivers, __count) \ |
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static int __init phy_module_init(void) \ |
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{ \ |
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return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \ |
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} \ |
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module_init(phy_module_init); \ |
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static void __exit phy_module_exit(void) \ |
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{ \ |
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phy_drivers_unregister(__phy_drivers, __count); \ |
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} \ |
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module_exit(phy_module_exit) |
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#define module_phy_driver(__phy_drivers) \ |
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phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers)) |
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bool phy_driver_is_genphy(struct phy_device *phydev); |
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bool phy_driver_is_genphy_10g(struct phy_device *phydev); |
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#endif /* __PHY_H */
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