WSL2-Linux-Kernel/include/linux/phy.h

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/*
* Framework and drivers for configuring and reading different PHYs
* Based on code in sungem_phy.c and gianfar_phy.c
*
* Author: Andy Fleming
*
* Copyright (c) 2004 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __PHY_H
#define __PHY_H
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/linkmode.h>
#include <linux/mdio.h>
#include <linux/mii.h>
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/mod_devicetable.h>
#include <linux/atomic.h>
PHYLIB: IRQ event workqueue handling fixes Keep track of disable_irq_nosync() invocations and call enable_irq() the right number of times if work has been cancelled that would include them. Now that the call to flush_work_keventd() (problematic because of rtnl_mutex being held) has been replaced by cancel_work_sync() another issue has arisen and been left unresolved. As the MDIO bus cannot be accessed from the interrupt context the PHY interrupt handler uses disable_irq_nosync() to prevent from looping and schedules some work to be done as a softirq, which, apart from handling the state change of the originating PHY, is responsible for reenabling the interrupt. Now if the interrupt line is shared by another device and a call to the softirq handler has been cancelled, that call to enable_irq() never happens and the other device cannot use its interrupt anymore as its stuck disabled. I decided to use a counter rather than a flag because there may be more than one call to phy_change() cancelled in the queue -- a real one and a fake one triggered by free_irq() if DEBUG_SHIRQ is used, if nothing else. Therefore because of its nesting property enable_irq() has to be called the right number of times to match the number disable_irq_nosync() was called and restore the original state. This DEBUG_SHIRQ feature is also the reason why free_irq() has to be called before cancel_work_sync(). While at it I updated the comment about phy_stop_interrupts() being called from `keventd' -- this is no longer relevant as the use of cancel_work_sync() makes such an approach unnecessary. OTOH a similar comment referring to flush_scheduled_work() in phy_stop() still applies as using cancel_work_sync() there would be dangerous. Checked with checkpatch.pl and at the run time (with and without DEBUG_SHIRQ). Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Andy Fleming <afleming@freescale.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-29 09:42:14 +04:00
#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_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_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features)
/*
* Set phydev->irq to PHY_POLL if interrupts are not supported,
* or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if
* the attached driver handles the interrupt
*/
#define PHY_POLL -1
#define PHY_IGNORE_INTERRUPT -2
#define PHY_HAS_INTERRUPT 0x00000001
#define PHY_IS_INTERNAL 0x00000002
#define PHY_RST_AFTER_CLK_EN 0x00000004
#define MDIO_DEVICE_IS_PHY 0x80000000
/* Interface Mode definitions */
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_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_MOCA,
PHY_INTERFACE_MODE_QSGMII,
PHY_INTERFACE_MODE_TRGMII,
PHY_INTERFACE_MODE_1000BASEX,
PHY_INTERFACE_MODE_2500BASEX,
PHY_INTERFACE_MODE_RXAUI,
PHY_INTERFACE_MODE_XAUI,
/* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */
PHY_INTERFACE_MODE_10GKR,
PHY_INTERFACE_MODE_MAX,
} phy_interface_t;
/**
* phy_supported_speeds - return all speeds currently supported by a phy device
* @phy: The phy device to return supported speeds of.
* @speeds: buffer to store supported speeds in.
* @size: size of speeds buffer.
*
* Description: Returns the number of supported speeds, and
* fills the speeds * buffer with the supported speeds. If speeds buffer is
* too small to contain * all currently supported speeds, will return as
* many speeds as can fit.
*/
unsigned int phy_supported_speeds(struct phy_device *phy,
unsigned int *speeds,
unsigned int size);
/**
* It maps 'enum phy_interface_t' found in include/linux/phy.h
* 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_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_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_RXAUI:
return "rxaui";
case PHY_INTERFACE_MODE_XAUI:
return "xaui";
case PHY_INTERFACE_MODE_10GKR:
return "10gbase-kr";
default:
return "unknown";
}
}
#define PHY_INIT_TIMEOUT 100000
#define PHY_STATE_TIME 1
#define PHY_FORCE_TIMEOUT 10
#define PHY_AN_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
/* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
#define MII_ADDR_C45 (1<<30)
struct device;
phylink: add phylink infrastructure The link between the ethernet MAC and its PHY has become more complex as the interface evolves. This is especially true with serdes links, where the part of the PHY is effectively integrated into the MAC. Serdes links can be connected to a variety of devices, including SFF modules soldered down onto the board with the MAC, a SFP cage with a hotpluggable SFP module which may contain a PHY or directly modulate the serdes signals onto optical media with or without a PHY, or even a classical PHY connection. Moreover, the negotiation information on serdes links comes in two varieties - SGMII mode, where the PHY provides its speed/duplex/flow control information to the MAC, and 1000base-X mode where both ends exchange their abilities and each resolve the link capabilities. This means we need a more flexible means to support these arrangements, particularly with the hotpluggable nature of SFP, where the PHY can be attached or detached after the network device has been brought up. Ethtool information can come from multiple sources: - we may have a PHY operating in either SGMII or 1000base-X mode, in which case we take ethtool/mii data directly from the PHY. - we may have a optical SFP module without a PHY, with the MAC operating in 1000base-X mode - the ethtool/mii data needs to come from the MAC. - we may have a copper SFP module with a PHY whic can't be accessed, which means we need to take ethtool/mii data from the MAC. Phylink aims to solve this by providing an intermediary between the MAC and PHY, providing a safe way for PHYs to be hotplugged, and allowing a SFP driver to reconfigure the serdes connection. Phylink also takes over support of fixed link connections, where the speed/duplex/flow control are fixed, but link status may be controlled by a GPIO signal. By avoiding the fixed-phy implementation, phylink can provide a faster response to link events: fixed-phy has to wait for phylib to operate its state machine, which can take several seconds. In comparison, phylink takes milliseconds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> - remove sync status - rework supported and advertisment handling - add 1000base-x speed for fixed links - use functionality exported from phy-core, reworking __phylink_ethtool_ksettings_set for it Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25 17:03:13 +03:00
struct phylink;
struct sk_buff;
/*
* 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;
int (*read)(struct mii_bus *bus, int addr, int regnum);
int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
int (*reset)(struct mii_bus *bus);
/*
* A lock to ensure that only one thing can read/write
* the MDIO bus at a time
*/
struct mutex mdio_lock;
struct device *parent;
enum {
MDIOBUS_ALLOCATED = 1,
MDIOBUS_REGISTERED,
MDIOBUS_UNREGISTERED,
MDIOBUS_RELEASED,
} state;
struct device dev;
/* list of all PHYs on bus */
struct mdio_device *mdio_map[PHY_MAX_ADDR];
/* PHY addresses to be ignored when probing */
u32 phy_mask;
/* PHY addresses to ignore the TA/read failure */
u32 phy_ignore_ta_mask;
/*
* An array of interrupts, each PHY's interrupt at the index
* matching its address
*/
int irq[PHY_MAX_ADDR];
/* GPIO reset pulse width in microseconds */
int reset_delay_us;
/* RESET GPIO descriptor pointer */
struct gpio_desc *reset_gpiod;
};
#define to_mii_bus(d) container_of(d, struct mii_bus, dev)
struct mii_bus *mdiobus_alloc_size(size_t);
static inline struct mii_bus *mdiobus_alloc(void)
{
return mdiobus_alloc_size(0);
}
int __mdiobus_register(struct mii_bus *bus, struct module *owner);
#define mdiobus_register(bus) __mdiobus_register(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);
}
void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
#define PHY_INTERRUPT_DISABLED 0x0
#define PHY_INTERRUPT_ENABLED 0x80000000
/* PHY state machine states:
*
* 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, depending on the PHY, set
* the state to STARTING or READY
*
* STARTING: PHY device is coming up, and the ethernet driver is
* not ready. PHY drivers may set this in the probe function.
* If they do, they are responsible for making sure the state is
* eventually set to indicate whether the PHY is UP or READY,
* depending on the state when the PHY is done starting up.
* - PHY driver will set the state to READY
* - start will set the state to PENDING
*
* 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(). If the PHY
* driver knows the PHY is ready, and the PHY state is STARTING,
* then it sets this STATE.
* - start will set the state to UP
*
* PENDING: PHY device is coming up, but the ethernet driver is
* ready. phy_start will set this state if the PHY state is
* STARTING.
* - PHY driver will set the state to UP when the PHY is ready
*
* UP: The PHY and attached device are ready to do work.
* Interrupts should be started here.
* - timer moves to AN
*
* AN: The PHY is currently negotiating the link state. Link is
* therefore down for now. phy_timer will set this state when it
* detects the state is UP. config_aneg will set this state
* whenever called with phydev->autoneg set to AUTONEG_ENABLE.
* - If autonegotiation finishes, but there's no link, it sets
* the state to NOLINK.
* - If aneg finishes with link, it sets the state to RUNNING,
* and calls adjust_link
* - If autonegotiation did not finish after an arbitrary amount
* of time, autonegotiation should be tried again if the PHY
* supports "magic" autonegotiation (back to AN)
* - If it didn't finish, and no magic_aneg, move to FORCING.
*
* NOLINK: PHY is up, but not currently plugged in.
* - If the timer notes that the link comes back, we move to RUNNING
* - config_aneg moves to AN
* - phy_stop moves to HALTED
*
* FORCING: PHY is being configured with forced settings
* - if link is up, move to RUNNING
* - If link is down, we drop to the next highest setting, and
* retry (FORCING) after a timeout
* - phy_stop moves to HALTED
*
* RUNNING: PHY is currently up, running, and possibly sending
* and/or receiving packets
* - timer will set CHANGELINK if we're polling (this ensures the
* link state is polled every other cycle of this state machine,
* which makes it every other second)
* - irq will set CHANGELINK
* - config_aneg will set AN
* - phy_stop moves to HALTED
*
* CHANGELINK: PHY experienced a change in link state
* - timer moves to RUNNING if link
* - timer moves to NOLINK if the link is down
* - phy_stop moves to HALTED
*
* HALTED: PHY is up, but no polling or interrupts are done. Or
* PHY is in an error state.
*
* - phy_start moves to RESUMING
*
* RESUMING: PHY was halted, but now wants to run again.
* - If we are forcing, or aneg is done, timer moves to RUNNING
* - If aneg is not done, timer moves to AN
* - phy_stop moves to HALTED
*/
enum phy_state {
PHY_DOWN = 0,
PHY_STARTING,
PHY_READY,
PHY_PENDING,
PHY_UP,
PHY_AN,
PHY_RUNNING,
PHY_NOLINK,
PHY_FORCING,
PHY_CHANGELINK,
PHY_HALTED,
PHY_RESUMING
};
/**
* struct phy_c45_device_ids - 802.3-c45 Device Identifiers
* @devices_in_package: Bit vector of devices present.
* @device_ids: The device identifer for each present device.
*/
struct phy_c45_device_ids {
u32 devices_in_package;
u32 device_ids[8];
};
/* phy_device: An instance of a PHY
*
* drv: Pointer to the driver for this PHY instance
* phy_id: UID for this device found during discovery
* c45_ids: 802.3-c45 Device Identifers 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.
* has_fixups: Set to true if this phy has fixups/quirks.
* suspended: Set to true if this phy has been suspended successfully.
* sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
* loopback_enabled: Set true if this phy has been loopbacked successfully.
* state: state of the PHY for management purposes
* dev_flags: Device-specific flags used by the PHY driver.
* link_timeout: The number of timer firings to wait before the
* giving up on the current attempt at acquiring a link
* irq: IRQ number of the PHY's interrupt (-1 if none)
* phy_timer: The timer for handling the state machine
* phy_queue: A work_queue for the phy_mac_interrupt
* 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.
*
* speed, duplex, pause, supported, advertising, lp_advertising,
* and autoneg are used like in mii_if_info
*
* 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 has_fixups:1;
unsigned suspended:1;
unsigned sysfs_links:1;
unsigned loopback_enabled:1;
unsigned autoneg:1;
/* The most recently read link state */
unsigned link: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 pause;
int asym_pause;
/* Enabled Interrupts */
u32 interrupts;
/* Union of PHY and Attached devices' supported modes */
/* See mii.h for more info */
u32 supported;
u32 advertising;
u32 lp_advertising;
/* Energy efficient ethernet modes which should be prohibited */
u32 eee_broken_modes;
int link_timeout;
#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;
/* Interrupt and Polling infrastructure */
struct work_struct phy_queue;
struct delayed_work state_queue;
struct mutex lock;
phylink: add phylink infrastructure The link between the ethernet MAC and its PHY has become more complex as the interface evolves. This is especially true with serdes links, where the part of the PHY is effectively integrated into the MAC. Serdes links can be connected to a variety of devices, including SFF modules soldered down onto the board with the MAC, a SFP cage with a hotpluggable SFP module which may contain a PHY or directly modulate the serdes signals onto optical media with or without a PHY, or even a classical PHY connection. Moreover, the negotiation information on serdes links comes in two varieties - SGMII mode, where the PHY provides its speed/duplex/flow control information to the MAC, and 1000base-X mode where both ends exchange their abilities and each resolve the link capabilities. This means we need a more flexible means to support these arrangements, particularly with the hotpluggable nature of SFP, where the PHY can be attached or detached after the network device has been brought up. Ethtool information can come from multiple sources: - we may have a PHY operating in either SGMII or 1000base-X mode, in which case we take ethtool/mii data directly from the PHY. - we may have a optical SFP module without a PHY, with the MAC operating in 1000base-X mode - the ethtool/mii data needs to come from the MAC. - we may have a copper SFP module with a PHY whic can't be accessed, which means we need to take ethtool/mii data from the MAC. Phylink aims to solve this by providing an intermediary between the MAC and PHY, providing a safe way for PHYs to be hotplugged, and allowing a SFP driver to reconfigure the serdes connection. Phylink also takes over support of fixed link connections, where the speed/duplex/flow control are fixed, but link status may be controlled by a GPIO signal. By avoiding the fixed-phy implementation, phylink can provide a faster response to link events: fixed-phy has to wait for phylib to operate its state machine, which can take several seconds. In comparison, phylink takes milliseconds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> - remove sync status - rework supported and advertisment handling - add 1000base-x speed for fixed links - use functionality exported from phy-core, reworking __phylink_ethtool_ksettings_set for it Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25 17:03:13 +03:00
struct phylink *phylink;
struct net_device *attached_dev;
u8 mdix;
u8 mdix_ctrl;
void (*phy_link_change)(struct phy_device *, bool up, bool do_carrier);
void (*adjust_link)(struct net_device *dev);
};
#define to_phy_device(d) container_of(to_mdio_device(d), \
struct phy_device, mdio)
/* struct phy_driver: Driver structure for a particular PHY type
*
* driver_data: static driver data
* 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 list of features (speed, duplex, etc) supported
* by this PHY
* flags: A bitfield defining certain other features this PHY
* supports (like interrupts)
*
* 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;
/*
* Called to issue a PHY software reset
*/
int (*soft_reset)(struct phy_device *phydev);
/*
* Called to initialize the PHY,
* including after a reset
*/
int (*config_init)(struct phy_device *phydev);
/*
* Called during discovery. Used to set
* up device-specific structures, if any
*/
int (*probe)(struct phy_device *phydev);
/* PHY Power Management */
int (*suspend)(struct phy_device *phydev);
int (*resume)(struct phy_device *phydev);
/*
* 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);
/* Determines the auto negotiation result */
int (*aneg_done)(struct phy_device *phydev);
/* Determines the negotiated speed and duplex */
int (*read_status)(struct phy_device *phydev);
/* Clears any pending interrupts */
int (*ack_interrupt)(struct phy_device *phydev);
/* Enables or disables interrupts */
int (*config_intr)(struct phy_device *phydev);
/*
* Checks if the PHY generated an interrupt.
* For multi-PHY devices with shared PHY interrupt pin
*/
int (*did_interrupt)(struct phy_device *phydev);
/* Clears up any memory if needed */
void (*remove)(struct phy_device *phydev);
/* 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);
/* Handles ethtool queries for hardware time stamping. */
int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
/* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
/*
* Requests a Rx timestamp for 'skb'. If the skb is accepted,
* the phy driver promises to deliver it using netif_rx() as
* soon as a timestamp becomes available. One of the
* PTP_CLASS_ values is passed in 'type'. The function must
* return true if the skb is accepted for delivery.
*/
bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
/*
* Requests a Tx timestamp for 'skb'. The phy driver promises
* to deliver it using skb_complete_tx_timestamp() as soon as a
* timestamp becomes available. One of the PTP_CLASS_ values
* is passed in 'type'.
*/
void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
/* 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);
/* See set_wol, but for checking whether Wake on LAN is enabled. */
void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
/*
* 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);
/*
* 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);
/*
* 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);
int (*read_page)(struct phy_device *dev);
int (*write_page)(struct phy_device *dev, int page);
/* 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);
/* Get the eeprom information from the plug-in module */
int (*module_eeprom)(struct phy_device *dev,
struct ethtool_eeprom *ee, u8 *data);
/* Get statistics from the phy using ethtool */
int (*get_sset_count)(struct phy_device *dev);
void (*get_strings)(struct phy_device *dev, u8 *data);
void (*get_stats)(struct phy_device *dev,
struct ethtool_stats *stats, u64 *data);
/* Get and Set PHY tunables */
int (*get_tunable)(struct phy_device *dev,
struct ethtool_tunable *tuna, void *data);
int (*set_tunable)(struct phy_device *dev,
struct ethtool_tunable *tuna,
const void *data);
int (*set_loopback)(struct phy_device *dev, bool enable);
};
#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
/* 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,
size_t maxbit, bool exact);
size_t phy_speeds(unsigned int *speeds, size_t size,
unsigned long *mask, size_t maxbit);
void phy_resolve_aneg_linkmode(struct phy_device *phydev);
/**
* phy_read_mmd - Convenience function for reading a register
* from an MMD on a given PHY.
* @phydev: The phy_device struct
* @devad: The MMD to read from
* @regnum: The register on the MMD to read
*
* Same rules as for phy_read();
*/
int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
/**
* 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);
}
/**
* __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);
}
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);
/**
* __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_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_IGNORE_INTERRUPT
*/
static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
{
return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_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)
{
return phydev->irq == PHY_POLL;
}
/**
* 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_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;
}
/**
* phy_write_mmd - Convenience function for writing a register
* on an MMD on a given PHY.
* @phydev: The phy_device struct
* @devad: The MMD to read from
* @regnum: The register on the MMD to read
* @val: value to write to @regnum
*
* Same rules as for phy_write();
*/
int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
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(struct phy_device *phydev, int page, u32 regnum,
u16 mask, u16 set);
struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
bool is_c45,
struct phy_c45_device_ids *c45_ids);
#if IS_ENABLED(CONFIG_PHYLIB)
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
int phy_device_register(struct phy_device *phy);
void phy_device_free(struct phy_device *phydev);
#else
static inline
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
{
return NULL;
}
static inline int phy_device_register(struct phy_device *phy)
{
return 0;
}
static inline void phy_device_free(struct phy_device *phydev) { }
#endif /* CONFIG_PHYLIB */
void phy_device_remove(struct phy_device *phydev);
int phy_init_hw(struct phy_device *phydev);
int phy_suspend(struct phy_device *phydev);
int phy_resume(struct phy_device *phydev);
int __phy_resume(struct phy_device *phydev);
int phy_loopback(struct phy_device *phydev, bool enable);
struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
phy_interface_t interface);
struct phy_device *phy_find_first(struct mii_bus *bus);
int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
u32 flags, phy_interface_t interface);
int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
void (*handler)(struct net_device *),
phy_interface_t interface);
struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
void (*handler)(struct net_device *),
phy_interface_t interface);
void phy_disconnect(struct phy_device *phydev);
void phy_detach(struct phy_device *phydev);
void phy_start(struct phy_device *phydev);
void phy_stop(struct phy_device *phydev);
int phy_start_aneg(struct phy_device *phydev);
int phy_aneg_done(struct phy_device *phydev);
int phy_speed_down(struct phy_device *phydev, bool sync);
int phy_speed_up(struct phy_device *phydev);
int phy_stop_interrupts(struct phy_device *phydev);
int phy_restart_aneg(struct phy_device *phydev);
int phy_reset_after_clk_enable(struct phy_device *phydev);
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);
}
void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
__printf(2, 3);
void phy_attached_info(struct phy_device *phydev);
/* Clause 22 PHY */
int genphy_config_init(struct phy_device *phydev);
int genphy_setup_forced(struct phy_device *phydev);
int genphy_restart_aneg(struct phy_device *phydev);
int genphy_config_aneg(struct phy_device *phydev);
int genphy_aneg_done(struct phy_device *phydev);
int genphy_update_link(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);
static inline int genphy_no_soft_reset(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 45 PHY */
int genphy_c45_restart_aneg(struct phy_device *phydev);
int genphy_c45_aneg_done(struct phy_device *phydev);
int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask);
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_disable_aneg(struct phy_device *phydev);
int genphy_c45_read_mdix(struct phy_device *phydev);
/* The gen10g_* functions are the old Clause 45 stub */
int gen10g_config_aneg(struct phy_device *phydev);
int gen10g_read_status(struct phy_device *phydev);
int gen10g_no_soft_reset(struct phy_device *phydev);
int gen10g_config_init(struct phy_device *phydev);
int gen10g_suspend(struct phy_device *phydev);
int gen10g_resume(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_state_machine(struct work_struct *work);
void phy_change_work(struct work_struct *work);
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_trigger_machine(struct phy_device *phydev);
int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
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_start_interrupts(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_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);
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);
phy: add the EEE support and the way to access to the MMD registers. This patch adds the support for the Energy-Efficient Ethernet (EEE) to the Physical Abstraction Layer. To support the EEE we have to access to the MMD registers 3.20 and 7.60/61. So two new functions have been added to read/write the MMD registers (clause 45). An Ethernet driver (I tested the stmmac) can invoke the phy_init_eee to properly check if the EEE is supported by the PHYs and it can also set the clock stop enable bit in the 3.0 register. The phy_get_eee_err can be used for reporting the number of time where the PHY failed to complete its normal wake sequence. In the end, this patch also adds the EEE ethtool support implementing: o phy_ethtool_set_eee o phy_ethtool_get_eee v1: initial patch v2: fixed some errors especially on naming convention v3: renamed again the mmd read/write functions thank to Ben's feedback v4: moved file to phy.c and added the ethtool support. v5: fixed phy_adv_to_eee, phy_eee_to_supported, phy_eee_to_adv return values according to ethtool API (thanks to Ben's feedback). Renamed some macros to avoid too long names. v6: fixed kernel-doc comments to be properly parsed. Fixed the phy_init_eee function: we need to check which link mode was autonegotiated and then the corresponding bits in 7.60 and 7.61 registers. v7: reviewed the way to get the negotiated settings. v8: fixed a problem in the phy_init_eee return value erroneously added when included the phy_read_status call. v9: do not remove the MDIO_AN_EEE_ADV_100TX and MDIO_AN_EEE_ADV_1000T and fixed the eee_{cap,lp,adv} declaration as "int" instead of u16. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-28 01:14:38 +04:00
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);
phy: add the EEE support and the way to access to the MMD registers. This patch adds the support for the Energy-Efficient Ethernet (EEE) to the Physical Abstraction Layer. To support the EEE we have to access to the MMD registers 3.20 and 7.60/61. So two new functions have been added to read/write the MMD registers (clause 45). An Ethernet driver (I tested the stmmac) can invoke the phy_init_eee to properly check if the EEE is supported by the PHYs and it can also set the clock stop enable bit in the 3.0 register. The phy_get_eee_err can be used for reporting the number of time where the PHY failed to complete its normal wake sequence. In the end, this patch also adds the EEE ethtool support implementing: o phy_ethtool_set_eee o phy_ethtool_get_eee v1: initial patch v2: fixed some errors especially on naming convention v3: renamed again the mmd read/write functions thank to Ben's feedback v4: moved file to phy.c and added the ethtool support. v5: fixed phy_adv_to_eee, phy_eee_to_supported, phy_eee_to_adv return values according to ethtool API (thanks to Ben's feedback). Renamed some macros to avoid too long names. v6: fixed kernel-doc comments to be properly parsed. Fixed the phy_init_eee function: we need to check which link mode was autonegotiated and then the corresponding bits in 7.60 and 7.61 registers. v7: reviewed the way to get the negotiated settings. v8: fixed a problem in the phy_init_eee return value erroneously added when included the phy_read_status call. v9: do not remove the MDIO_AN_EEE_ADV_100TX and MDIO_AN_EEE_ADV_1000T and fixed the eee_{cap,lp,adv} declaration as "int" instead of u16. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-28 01:14:38 +04:00
#if IS_ENABLED(CONFIG_PHYLIB)
int __init mdio_bus_init(void);
void mdio_bus_exit(void);
#endif
/* Inline function for use within net/core/ethtool.c (built-in) */
static inline int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data)
{
if (!phydev->drv)
return -EIO;
mutex_lock(&phydev->lock);
phydev->drv->get_strings(phydev, data);
mutex_unlock(&phydev->lock);
return 0;
}
static inline int phy_ethtool_get_sset_count(struct phy_device *phydev)
{
int ret;
if (!phydev->drv)
return -EIO;
if (phydev->drv->get_sset_count &&
phydev->drv->get_strings &&
phydev->drv->get_stats) {
mutex_lock(&phydev->lock);
ret = phydev->drv->get_sset_count(phydev);
mutex_unlock(&phydev->lock);
return ret;
}
return -EOPNOTSUPP;
}
static inline int phy_ethtool_get_stats(struct phy_device *phydev,
struct ethtool_stats *stats, u64 *data)
{
if (!phydev->drv)
return -EIO;
mutex_lock(&phydev->lock);
phydev->drv->get_stats(phydev, stats, data);
mutex_unlock(&phydev->lock);
return 0;
}
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
/**
* module_phy_driver() - Helper macro for registering PHY drivers
* @__phy_drivers: array of PHY drivers to register
*
* 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))
#endif /* __PHY_H */