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linux-stable/include/linux/phy.h
Russell King (Oracle) 8e20f591f2 net: phy: add phy_interface_t bitmap support 
Add support for a bitmap for phy interface modes, which includes:
- a macro to declare the interface bitmap
- an inline helper to zero the interface bitmap
- an inline helper to detect an empty interface bitmap
- inline helpers to do a bitwise AND and OR operations on two interface
  bitmaps

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-26 15:10:36 +01:00

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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/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[2];
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: Median-independent interface
* @PHY_INTERFACE_MODE_GMII: Gigabit median-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: ??? 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_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_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_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";
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
* @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)
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_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);
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_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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