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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Framework and drivers for configuring and reading different PHYs
- * Based on code in sungem_phy.c and (long-removed) gianfar_phy.c
- *
- * Author: Andy Fleming
- *
- * Copyright (c) 2004 Freescale Semiconductor, Inc.
- */
- #ifndef __PHY_H
- #define __PHY_H
- #include <linux/compiler.h>
- #include <linux/spinlock.h>
- #include <linux/ethtool.h>
- #include <linux/linkmode.h>
- #include <linux/netlink.h>
- #include <linux/mdio.h>
- #include <linux/mii.h>
- #include <linux/mii_timestamper.h>
- #include <linux/module.h>
- #include <linux/timer.h>
- #include <linux/workqueue.h>
- #include <linux/mod_devicetable.h>
- #include <linux/u64_stats_sync.h>
- #include <linux/irqreturn.h>
- #include <linux/iopoll.h>
- #include <linux/refcount.h>
- #include <linux/android_kabi.h>
- #include <linux/atomic.h>
- #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
- SUPPORTED_TP | \
- SUPPORTED_MII)
- #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
- SUPPORTED_10baseT_Full)
- #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
- SUPPORTED_100baseT_Full)
- #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
- SUPPORTED_1000baseT_Full)
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init;
- extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
- #define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features)
- #define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features)
- #define PHY_GBIT_FEATURES ((unsigned long *)&phy_gbit_features)
- #define PHY_GBIT_FIBRE_FEATURES ((unsigned long *)&phy_gbit_fibre_features)
- #define PHY_GBIT_ALL_PORTS_FEATURES ((unsigned long *)&phy_gbit_all_ports_features)
- #define PHY_10GBIT_FEATURES ((unsigned long *)&phy_10gbit_features)
- #define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features)
- #define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features)
- extern const int phy_basic_ports_array[3];
- extern const int phy_fibre_port_array[1];
- extern const int phy_all_ports_features_array[7];
- extern const int phy_10_100_features_array[4];
- extern const int phy_basic_t1_features_array[3];
- extern const int phy_gbit_features_array[2];
- extern const int phy_10gbit_features_array[1];
- /*
- * Set phydev->irq to PHY_POLL if interrupts are not supported,
- * or not desired for this PHY. Set to PHY_MAC_INTERRUPT if
- * the attached MAC driver handles the interrupt
- */
- #define PHY_POLL -1
- #define PHY_MAC_INTERRUPT -2
- #define PHY_IS_INTERNAL 0x00000001
- #define PHY_RST_AFTER_CLK_EN 0x00000002
- #define PHY_POLL_CABLE_TEST 0x00000004
- #define MDIO_DEVICE_IS_PHY 0x80000000
- /**
- * enum phy_interface_t - Interface Mode definitions
- *
- * @PHY_INTERFACE_MODE_NA: Not Applicable - don't touch
- * @PHY_INTERFACE_MODE_INTERNAL: No interface, MAC and PHY combined
- * @PHY_INTERFACE_MODE_MII: Media-independent interface
- * @PHY_INTERFACE_MODE_GMII: Gigabit media-independent interface
- * @PHY_INTERFACE_MODE_SGMII: Serial gigabit media-independent interface
- * @PHY_INTERFACE_MODE_TBI: Ten Bit Interface
- * @PHY_INTERFACE_MODE_REVMII: Reverse Media Independent Interface
- * @PHY_INTERFACE_MODE_RMII: Reduced Media Independent Interface
- * @PHY_INTERFACE_MODE_REVRMII: Reduced Media Independent Interface in PHY role
- * @PHY_INTERFACE_MODE_RGMII: Reduced gigabit media-independent interface
- * @PHY_INTERFACE_MODE_RGMII_ID: RGMII with Internal RX+TX delay
- * @PHY_INTERFACE_MODE_RGMII_RXID: RGMII with Internal RX delay
- * @PHY_INTERFACE_MODE_RGMII_TXID: RGMII with Internal RX delay
- * @PHY_INTERFACE_MODE_RTBI: Reduced TBI
- * @PHY_INTERFACE_MODE_SMII: Serial MII
- * @PHY_INTERFACE_MODE_XGMII: 10 gigabit media-independent interface
- * @PHY_INTERFACE_MODE_XLGMII:40 gigabit media-independent interface
- * @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax
- * @PHY_INTERFACE_MODE_QSGMII: Quad SGMII
- * @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII
- * @PHY_INTERFACE_MODE_100BASEX: 100 BaseX
- * @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX
- * @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX
- * @PHY_INTERFACE_MODE_5GBASER: 5G BaseR
- * @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI
- * @PHY_INTERFACE_MODE_XAUI: 10 Gigabit Attachment Unit Interface
- * @PHY_INTERFACE_MODE_10GBASER: 10G BaseR
- * @PHY_INTERFACE_MODE_25GBASER: 25G BaseR
- * @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII
- * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
- * @PHY_INTERFACE_MODE_QUSGMII: Quad Universal SGMII
- * @PHY_INTERFACE_MODE_1000BASEKX: 1000Base-KX - with Clause 73 AN
- * @PHY_INTERFACE_MODE_MAX: Book keeping
- *
- * Describes the interface between the MAC and PHY.
- */
- typedef enum {
- PHY_INTERFACE_MODE_NA,
- PHY_INTERFACE_MODE_INTERNAL,
- PHY_INTERFACE_MODE_MII,
- PHY_INTERFACE_MODE_GMII,
- PHY_INTERFACE_MODE_SGMII,
- PHY_INTERFACE_MODE_TBI,
- PHY_INTERFACE_MODE_REVMII,
- PHY_INTERFACE_MODE_RMII,
- PHY_INTERFACE_MODE_REVRMII,
- PHY_INTERFACE_MODE_RGMII,
- PHY_INTERFACE_MODE_RGMII_ID,
- PHY_INTERFACE_MODE_RGMII_RXID,
- PHY_INTERFACE_MODE_RGMII_TXID,
- PHY_INTERFACE_MODE_RTBI,
- PHY_INTERFACE_MODE_SMII,
- PHY_INTERFACE_MODE_XGMII,
- PHY_INTERFACE_MODE_XLGMII,
- PHY_INTERFACE_MODE_MOCA,
- PHY_INTERFACE_MODE_QSGMII,
- PHY_INTERFACE_MODE_TRGMII,
- PHY_INTERFACE_MODE_100BASEX,
- PHY_INTERFACE_MODE_1000BASEX,
- PHY_INTERFACE_MODE_2500BASEX,
- PHY_INTERFACE_MODE_5GBASER,
- PHY_INTERFACE_MODE_RXAUI,
- PHY_INTERFACE_MODE_XAUI,
- /* 10GBASE-R, XFI, SFI - single lane 10G Serdes */
- PHY_INTERFACE_MODE_10GBASER,
- PHY_INTERFACE_MODE_25GBASER,
- PHY_INTERFACE_MODE_USXGMII,
- /* 10GBASE-KR - with Clause 73 AN */
- PHY_INTERFACE_MODE_10GKR,
- PHY_INTERFACE_MODE_QUSGMII,
- PHY_INTERFACE_MODE_1000BASEKX,
- PHY_INTERFACE_MODE_MAX,
- } phy_interface_t;
- /* PHY interface mode bitmap handling */
- #define DECLARE_PHY_INTERFACE_MASK(name) \
- DECLARE_BITMAP(name, PHY_INTERFACE_MODE_MAX)
- static inline void phy_interface_zero(unsigned long *intf)
- {
- bitmap_zero(intf, PHY_INTERFACE_MODE_MAX);
- }
- static inline bool phy_interface_empty(const unsigned long *intf)
- {
- return bitmap_empty(intf, PHY_INTERFACE_MODE_MAX);
- }
- static inline void phy_interface_and(unsigned long *dst, const unsigned long *a,
- const unsigned long *b)
- {
- bitmap_and(dst, a, b, PHY_INTERFACE_MODE_MAX);
- }
- static inline void phy_interface_or(unsigned long *dst, const unsigned long *a,
- const unsigned long *b)
- {
- bitmap_or(dst, a, b, PHY_INTERFACE_MODE_MAX);
- }
- static inline void phy_interface_set_rgmii(unsigned long *intf)
- {
- __set_bit(PHY_INTERFACE_MODE_RGMII, intf);
- __set_bit(PHY_INTERFACE_MODE_RGMII_ID, intf);
- __set_bit(PHY_INTERFACE_MODE_RGMII_RXID, intf);
- __set_bit(PHY_INTERFACE_MODE_RGMII_TXID, intf);
- }
- /*
- * phy_supported_speeds - return all speeds currently supported by a PHY device
- */
- unsigned int phy_supported_speeds(struct phy_device *phy,
- unsigned int *speeds,
- unsigned int size);
- /**
- * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
- * @interface: enum phy_interface_t value
- *
- * Description: maps enum &phy_interface_t defined in this file
- * into the device tree binding of 'phy-mode', so that Ethernet
- * device driver can get PHY interface from device tree.
- */
- static inline const char *phy_modes(phy_interface_t interface)
- {
- switch (interface) {
- case PHY_INTERFACE_MODE_NA:
- return "";
- case PHY_INTERFACE_MODE_INTERNAL:
- return "internal";
- case PHY_INTERFACE_MODE_MII:
- return "mii";
- case PHY_INTERFACE_MODE_GMII:
- return "gmii";
- case PHY_INTERFACE_MODE_SGMII:
- return "sgmii";
- case PHY_INTERFACE_MODE_TBI:
- return "tbi";
- case PHY_INTERFACE_MODE_REVMII:
- return "rev-mii";
- case PHY_INTERFACE_MODE_RMII:
- return "rmii";
- case PHY_INTERFACE_MODE_REVRMII:
- return "rev-rmii";
- case PHY_INTERFACE_MODE_RGMII:
- return "rgmii";
- case PHY_INTERFACE_MODE_RGMII_ID:
- return "rgmii-id";
- case PHY_INTERFACE_MODE_RGMII_RXID:
- return "rgmii-rxid";
- case PHY_INTERFACE_MODE_RGMII_TXID:
- return "rgmii-txid";
- case PHY_INTERFACE_MODE_RTBI:
- return "rtbi";
- case PHY_INTERFACE_MODE_SMII:
- return "smii";
- case PHY_INTERFACE_MODE_XGMII:
- return "xgmii";
- case PHY_INTERFACE_MODE_XLGMII:
- return "xlgmii";
- case PHY_INTERFACE_MODE_MOCA:
- return "moca";
- case PHY_INTERFACE_MODE_QSGMII:
- return "qsgmii";
- case PHY_INTERFACE_MODE_TRGMII:
- return "trgmii";
- case PHY_INTERFACE_MODE_1000BASEX:
- return "1000base-x";
- case PHY_INTERFACE_MODE_1000BASEKX:
- return "1000base-kx";
- case PHY_INTERFACE_MODE_2500BASEX:
- return "2500base-x";
- case PHY_INTERFACE_MODE_5GBASER:
- return "5gbase-r";
- case PHY_INTERFACE_MODE_RXAUI:
- return "rxaui";
- case PHY_INTERFACE_MODE_XAUI:
- return "xaui";
- case PHY_INTERFACE_MODE_10GBASER:
- return "10gbase-r";
- case PHY_INTERFACE_MODE_25GBASER:
- return "25gbase-r";
- case PHY_INTERFACE_MODE_USXGMII:
- return "usxgmii";
- case PHY_INTERFACE_MODE_10GKR:
- return "10gbase-kr";
- case PHY_INTERFACE_MODE_100BASEX:
- return "100base-x";
- case PHY_INTERFACE_MODE_QUSGMII:
- return "qusgmii";
- default:
- return "unknown";
- }
- }
- #define PHY_INIT_TIMEOUT 100000
- #define PHY_FORCE_TIMEOUT 10
- #define PHY_MAX_ADDR 32
- /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
- #define PHY_ID_FMT "%s:%02x"
- #define MII_BUS_ID_SIZE 61
- struct device;
- struct phylink;
- struct sfp_bus;
- struct sfp_upstream_ops;
- struct sk_buff;
- /**
- * struct mdio_bus_stats - Statistics counters for MDIO busses
- * @transfers: Total number of transfers, i.e. @writes + @reads
- * @errors: Number of MDIO transfers that returned an error
- * @writes: Number of write transfers
- * @reads: Number of read transfers
- * @syncp: Synchronisation for incrementing statistics
- */
- struct mdio_bus_stats {
- u64_stats_t transfers;
- u64_stats_t errors;
- u64_stats_t writes;
- u64_stats_t reads;
- /* Must be last, add new statistics above */
- struct u64_stats_sync syncp;
- };
- /**
- * struct phy_package_shared - Shared information in PHY packages
- * @addr: Common PHY address used to combine PHYs in one package
- * @refcnt: Number of PHYs connected to this shared data
- * @flags: Initialization of PHY package
- * @priv_size: Size of the shared private data @priv
- * @priv: Driver private data shared across a PHY package
- *
- * Represents a shared structure between different phydev's in the same
- * package, for example a quad PHY. See phy_package_join() and
- * phy_package_leave().
- */
- struct phy_package_shared {
- int addr;
- refcount_t refcnt;
- unsigned long flags;
- size_t priv_size;
- /* private data pointer */
- /* note that this pointer is shared between different phydevs and
- * the user has to take care of appropriate locking. It is allocated
- * and freed automatically by phy_package_join() and
- * phy_package_leave().
- */
- void *priv;
- };
- /* used as bit number in atomic bitops */
- #define PHY_SHARED_F_INIT_DONE 0
- #define PHY_SHARED_F_PROBE_DONE 1
- /**
- * struct mii_bus - Represents an MDIO bus
- *
- * @owner: Who owns this device
- * @name: User friendly name for this MDIO device, or driver name
- * @id: Unique identifier for this bus, typical from bus hierarchy
- * @priv: Driver private data
- *
- * The Bus class for PHYs. Devices which provide access to
- * PHYs should register using this structure
- */
- struct mii_bus {
- struct module *owner;
- const char *name;
- char id[MII_BUS_ID_SIZE];
- void *priv;
- /** @read: Perform a read transfer on the bus */
- int (*read)(struct mii_bus *bus, int addr, int regnum);
- /** @write: Perform a write transfer on the bus */
- int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
- /** @reset: Perform a reset of the bus */
- int (*reset)(struct mii_bus *bus);
- /** @stats: Statistic counters per device on the bus */
- struct mdio_bus_stats stats[PHY_MAX_ADDR];
- /**
- * @mdio_lock: A lock to ensure that only one thing can read/write
- * the MDIO bus at a time
- */
- struct mutex mdio_lock;
- /** @parent: Parent device of this bus */
- struct device *parent;
- /** @state: State of bus structure */
- enum {
- MDIOBUS_ALLOCATED = 1,
- MDIOBUS_REGISTERED,
- MDIOBUS_UNREGISTERED,
- MDIOBUS_RELEASED,
- } state;
- /** @dev: Kernel device representation */
- struct device dev;
- /** @mdio_map: list of all MDIO devices on bus */
- struct mdio_device *mdio_map[PHY_MAX_ADDR];
- /** @phy_mask: PHY addresses to be ignored when probing */
- u32 phy_mask;
- /** @phy_ignore_ta_mask: PHY addresses to ignore the TA/read failure */
- u32 phy_ignore_ta_mask;
- /**
- * @irq: An array of interrupts, each PHY's interrupt at the index
- * matching its address
- */
- int irq[PHY_MAX_ADDR];
- /** @reset_delay_us: GPIO reset pulse width in microseconds */
- int reset_delay_us;
- /** @reset_post_delay_us: GPIO reset deassert delay in microseconds */
- int reset_post_delay_us;
- /** @reset_gpiod: Reset GPIO descriptor pointer */
- struct gpio_desc *reset_gpiod;
- /** @probe_capabilities: bus capabilities, used for probing */
- enum {
- MDIOBUS_NO_CAP = 0,
- MDIOBUS_C22,
- MDIOBUS_C45,
- MDIOBUS_C22_C45,
- } probe_capabilities;
- /** @shared_lock: protect access to the shared element */
- struct mutex shared_lock;
- /** @shared: shared state across different PHYs */
- struct phy_package_shared *shared[PHY_MAX_ADDR];
- };
- #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
- struct mii_bus *mdiobus_alloc_size(size_t size);
- /**
- * mdiobus_alloc - Allocate an MDIO bus structure
- *
- * The internal state of the MDIO bus will be set of MDIOBUS_ALLOCATED ready
- * for the driver to register the bus.
- */
- static inline struct mii_bus *mdiobus_alloc(void)
- {
- return mdiobus_alloc_size(0);
- }
- int __mdiobus_register(struct mii_bus *bus, struct module *owner);
- int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
- struct module *owner);
- #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
- #define devm_mdiobus_register(dev, bus) \
- __devm_mdiobus_register(dev, bus, THIS_MODULE)
- void mdiobus_unregister(struct mii_bus *bus);
- void mdiobus_free(struct mii_bus *bus);
- struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
- static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
- {
- return devm_mdiobus_alloc_size(dev, 0);
- }
- struct mii_bus *mdio_find_bus(const char *mdio_name);
- struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
- #define PHY_INTERRUPT_DISABLED false
- #define PHY_INTERRUPT_ENABLED true
- /**
- * enum phy_state - PHY state machine states:
- *
- * @PHY_DOWN: PHY device and driver are not ready for anything. probe
- * should be called if and only if the PHY is in this state,
- * given that the PHY device exists.
- * - PHY driver probe function will set the state to @PHY_READY
- *
- * @PHY_READY: PHY is ready to send and receive packets, but the
- * controller is not. By default, PHYs which do not implement
- * probe will be set to this state by phy_probe().
- * - start will set the state to UP
- *
- * @PHY_UP: The PHY and attached device are ready to do work.
- * Interrupts should be started here.
- * - timer moves to @PHY_NOLINK or @PHY_RUNNING
- *
- * @PHY_NOLINK: PHY is up, but not currently plugged in.
- * - irq or timer will set @PHY_RUNNING if link comes back
- * - phy_stop moves to @PHY_HALTED
- *
- * @PHY_RUNNING: PHY is currently up, running, and possibly sending
- * and/or receiving packets
- * - irq or timer will set @PHY_NOLINK if link goes down
- * - phy_stop moves to @PHY_HALTED
- *
- * @PHY_CABLETEST: PHY is performing a cable test. Packet reception/sending
- * is not expected to work, carrier will be indicated as down. PHY will be
- * poll once per second, or on interrupt for it current state.
- * Once complete, move to UP to restart the PHY.
- * - phy_stop aborts the running test and moves to @PHY_HALTED
- *
- * @PHY_HALTED: PHY is up, but no polling or interrupts are done. Or
- * PHY is in an error state.
- * - phy_start moves to @PHY_UP
- */
- enum phy_state {
- PHY_DOWN = 0,
- PHY_READY,
- PHY_HALTED,
- PHY_UP,
- PHY_RUNNING,
- PHY_NOLINK,
- PHY_CABLETEST,
- };
- #define MDIO_MMD_NUM 32
- /**
- * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
- * @devices_in_package: IEEE 802.3 devices in package register value.
- * @mmds_present: bit vector of MMDs present.
- * @device_ids: The device identifer for each present device.
- */
- struct phy_c45_device_ids {
- u32 devices_in_package;
- u32 mmds_present;
- u32 device_ids[MDIO_MMD_NUM];
- };
- struct macsec_context;
- struct macsec_ops;
- /**
- * struct phy_device - An instance of a PHY
- *
- * @mdio: MDIO bus this PHY is on
- * @drv: Pointer to the driver for this PHY instance
- * @phy_id: UID for this device found during discovery
- * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
- * @is_c45: Set to true if this PHY uses clause 45 addressing.
- * @is_internal: Set to true if this PHY is internal to a MAC.
- * @is_pseudo_fixed_link: Set to true if this PHY is an Ethernet switch, etc.
- * @is_gigabit_capable: Set to true if PHY supports 1000Mbps
- * @has_fixups: Set to true if this PHY has fixups/quirks.
- * @suspended: Set to true if this PHY has been suspended successfully.
- * @suspended_by_mdio_bus: Set to true if this PHY was suspended by MDIO bus.
- * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
- * @loopback_enabled: Set true if this PHY has been loopbacked successfully.
- * @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.
- *
- * - Bits [15:0] are free to use by the PHY driver to communicate
- * driver specific behavior.
- * - Bits [23:16] are currently reserved for future use.
- * - Bits [31:24] are reserved for defining generic
- * PHY driver behavior.
- * @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
- * @host_interfaces: PHY interface modes supported by host
- * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
- * @autoneg: Flag autoneg being used
- * @rate_matching: Current rate matching mode
- * @link: Current link state
- * @autoneg_complete: Flag auto negotiation of the link has completed
- * @mdix: Current crossover
- * @mdix_ctrl: User setting of crossover
- * @pma_extable: Cached value of PMA/PMD Extended Abilities Register
- * @interrupts: Flag interrupts have been enabled
- * @irq_suspended: Flag indicating PHY is suspended and therefore interrupt
- * handling shall be postponed until PHY has resumed
- * @irq_rerun: Flag indicating interrupts occurred while PHY was suspended,
- * requiring a rerun of the interrupt handler after resume
- * @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
- * @psec: Pointer to Power Sourcing Equipment control struct
- * @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;
- unsigned irq_suspended:1;
- unsigned irq_rerun:1;
- int rate_matching;
- 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);
- /* Host supported PHY interface types. Should be ignored if empty. */
- DECLARE_PHY_INTERFACE_MASK(host_interfaces);
- /* 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;
- struct pse_control *psec;
- u8 mdix;
- u8 mdix_ctrl;
- int pma_extable;
- 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
- ANDROID_KABI_RESERVE(1);
- ANDROID_KABI_RESERVE(2);
- ANDROID_KABI_RESERVE(3);
- ANDROID_KABI_RESERVE(4);
- };
- 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);
- /**
- * @get_rate_matching: Get the supported type of rate matching for a
- * particular phy interface. This is used by phy consumers to determine
- * whether to advertise lower-speed modes for that interface. It is
- * assumed that if a rate matching mode is supported on an interface,
- * then that interface's rate can be adapted to all slower link speeds
- * supported by the phy. If iface is %PHY_INTERFACE_MODE_NA, and the phy
- * supports any kind of rate matching for any interface, then it must
- * return that rate matching mode (preferring %RATE_MATCH_PAUSE to
- * %RATE_MATCH_CRS). If the interface is not supported, this should
- * return %RATE_MATCH_NONE.
- */
- int (*get_rate_matching)(struct phy_device *phydev,
- phy_interface_t iface);
- /* 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);
- ANDROID_KABI_RESERVE(1);
- ANDROID_KABI_RESERVE(2);
- };
- #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);
- const char *phy_rate_matching_to_str(int rate_matching);
- int phy_interface_num_ports(phy_interface_t interface);
- /* 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)
- int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
- struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
- struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);
- struct phy_device *device_phy_find_device(struct device *dev);
- struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode);
- 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 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
- {
- return 0;
- }
- static inline
- struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
- {
- return 0;
- }
- static inline
- struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode)
- {
- return NULL;
- }
- static inline struct phy_device *device_phy_find_device(struct device *dev)
- {
- return NULL;
- }
- static inline
- struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode)
- {
- return NULL;
- }
- 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_get_c45_ids(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_config_aneg(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_err_probe(_phydev, err, format, args...) \
- dev_err_probe(&_phydev->mdio.dev, err, 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_read_master_slave(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_pma_baset1_setup_master_slave(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_pma_baset1_read_master_slave(struct phy_device *phydev);
- int genphy_c45_read_status(struct phy_device *phydev);
- int genphy_c45_baset1_read_status(struct phy_device *phydev);
- int genphy_c45_config_aneg(struct phy_device *phydev);
- int genphy_c45_loopback(struct phy_device *phydev, bool enable);
- int genphy_c45_pma_resume(struct phy_device *phydev);
- int genphy_c45_pma_suspend(struct phy_device *phydev);
- int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable);
- /* Generic C45 PHY driver */
- extern struct phy_driver genphy_c45_driver;
- /* The gen10g_* functions are the old Clause 45 stub */
- int gen10g_config_aneg(struct phy_device *phydev);
- static inline int phy_read_status(struct phy_device *phydev)
- {
- if (!phydev->drv)
- return -EIO;
- if (phydev->drv->read_status)
- return phydev->drv->read_status(phydev);
- else
- return genphy_read_status(phydev);
- }
- void phy_driver_unregister(struct phy_driver *drv);
- void phy_drivers_unregister(struct phy_driver *drv, int n);
- int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
- int phy_drivers_register(struct phy_driver *new_driver, int n,
- struct module *owner);
- void phy_error(struct phy_device *phydev);
- void phy_state_machine(struct work_struct *work);
- void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
- void phy_trigger_machine(struct phy_device *phydev);
- void phy_mac_interrupt(struct phy_device *phydev);
- void phy_start_machine(struct phy_device *phydev);
- void phy_stop_machine(struct phy_device *phydev);
- void phy_ethtool_ksettings_get(struct phy_device *phydev,
- struct ethtool_link_ksettings *cmd);
- int phy_ethtool_ksettings_set(struct phy_device *phydev,
- const struct ethtool_link_ksettings *cmd);
- int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
- int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
- int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
- int phy_disable_interrupts(struct phy_device *phydev);
- void phy_request_interrupt(struct phy_device *phydev);
- void phy_free_interrupt(struct phy_device *phydev);
- void phy_print_status(struct phy_device *phydev);
- int phy_get_rate_matching(struct phy_device *phydev,
- phy_interface_t iface);
- void phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
- void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
- void phy_advertise_supported(struct phy_device *phydev);
- void phy_support_sym_pause(struct phy_device *phydev);
- void phy_support_asym_pause(struct phy_device *phydev);
- void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
- bool autoneg);
- void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
- bool phy_validate_pause(struct phy_device *phydev,
- struct ethtool_pauseparam *pp);
- void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
- s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
- const int *delay_values, int size, bool is_rx);
- void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
- bool *tx_pause, bool *rx_pause);
- int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
- int (*run)(struct phy_device *));
- int phy_register_fixup_for_id(const char *bus_id,
- int (*run)(struct phy_device *));
- int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
- int (*run)(struct phy_device *));
- int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
- int phy_unregister_fixup_for_id(const char *bus_id);
- int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
- int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
- int phy_get_eee_err(struct phy_device *phydev);
- int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
- int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
- int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
- void phy_ethtool_get_wol(struct phy_device *phydev,
- struct ethtool_wolinfo *wol);
- int phy_ethtool_get_link_ksettings(struct net_device *ndev,
- struct ethtool_link_ksettings *cmd);
- int phy_ethtool_set_link_ksettings(struct net_device *ndev,
- const struct ethtool_link_ksettings *cmd);
- int phy_ethtool_nway_reset(struct net_device *ndev);
- int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size);
- void phy_package_leave(struct phy_device *phydev);
- int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
- int addr, size_t priv_size);
- #if IS_ENABLED(CONFIG_PHYLIB)
- int __init mdio_bus_init(void);
- void mdio_bus_exit(void);
- #endif
- int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
- int phy_ethtool_get_sset_count(struct phy_device *phydev);
- int phy_ethtool_get_stats(struct phy_device *phydev,
- struct ethtool_stats *stats, u64 *data);
- static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
- {
- struct phy_package_shared *shared = phydev->shared;
- if (!shared)
- return -EIO;
- return mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
- }
- static inline int __phy_package_read(struct phy_device *phydev, u32 regnum)
- {
- struct phy_package_shared *shared = phydev->shared;
- if (!shared)
- return -EIO;
- return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
- }
- static inline int phy_package_write(struct phy_device *phydev,
- u32 regnum, u16 val)
- {
- struct phy_package_shared *shared = phydev->shared;
- if (!shared)
- return -EIO;
- return mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
- }
- static inline int __phy_package_write(struct phy_device *phydev,
- u32 regnum, u16 val)
- {
- struct phy_package_shared *shared = phydev->shared;
- if (!shared)
- return -EIO;
- return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
- }
- static inline bool __phy_package_set_once(struct phy_device *phydev,
- unsigned int b)
- {
- struct phy_package_shared *shared = phydev->shared;
- if (!shared)
- return false;
- return !test_and_set_bit(b, &shared->flags);
- }
- static inline bool phy_package_init_once(struct phy_device *phydev)
- {
- return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
- }
- static inline bool phy_package_probe_once(struct phy_device *phydev)
- {
- return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
- }
- extern struct bus_type mdio_bus_type;
- struct mdio_board_info {
- const char *bus_id;
- char modalias[MDIO_NAME_SIZE];
- int mdio_addr;
- const void *platform_data;
- };
- #if IS_ENABLED(CONFIG_MDIO_DEVICE)
- int mdiobus_register_board_info(const struct mdio_board_info *info,
- unsigned int n);
- #else
- static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
- unsigned int n)
- {
- return 0;
- }
- #endif
- /**
- * phy_module_driver() - Helper macro for registering PHY drivers
- * @__phy_drivers: array of PHY drivers to register
- * @__count: Numbers of members in array
- *
- * Helper macro for PHY drivers which do not do anything special in module
- * init/exit. Each module may only use this macro once, and calling it
- * replaces module_init() and module_exit().
- */
- #define phy_module_driver(__phy_drivers, __count) \
- static int __init phy_module_init(void) \
- { \
- return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
- } \
- module_init(phy_module_init); \
- static void __exit phy_module_exit(void) \
- { \
- phy_drivers_unregister(__phy_drivers, __count); \
- } \
- module_exit(phy_module_exit)
- #define module_phy_driver(__phy_drivers) \
- phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
- bool phy_driver_is_genphy(struct phy_device *phydev);
- bool phy_driver_is_genphy_10g(struct phy_device *phydev);
- #endif /* __PHY_H */
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