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+#ifndef NETDEV_PCS_H
+#define NETDEV_PCS_H
+
+#include <linux/phy.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+
+struct device_node;
+struct ethtool_cmd;
+struct fwnode_handle;
+struct net_device;
+
+enum {
+ MLO_PAUSE_NONE,
+ MLO_PAUSE_RX = BIT(0),
+ MLO_PAUSE_TX = BIT(1),
+ MLO_PAUSE_TXRX_MASK = MLO_PAUSE_TX | MLO_PAUSE_RX,
+ MLO_PAUSE_AN = BIT(2),
+
+ MLO_AN_PHY = 0, /* Conventional PHY */
+ MLO_AN_FIXED, /* Fixed-link mode */
+ MLO_AN_INBAND, /* In-band protocol */
+
+ /* MAC_SYM_PAUSE and MAC_ASYM_PAUSE are used when configuring our
+ * autonegotiation advertisement. They correspond to the PAUSE and
+ * ASM_DIR bits defined by 802.3, respectively.
+ *
+ * The following table lists the values of tx_pause and rx_pause which
+ * might be requested in mac_link_up. The exact values depend on either
+ * the results of autonegotation (if MLO_PAUSE_AN is set) or user
+ * configuration (if MLO_PAUSE_AN is not set).
+ *
+ * MAC_SYM_PAUSE MAC_ASYM_PAUSE MLO_PAUSE_AN tx_pause/rx_pause
+ * ============= ============== ============ ==================
+ * 0 0 0 0/0
+ * 0 0 1 0/0
+ * 0 1 0 0/0, 0/1, 1/0, 1/1
+ * 0 1 1 0/0, 1/0
+ * 1 0 0 0/0, 1/1
+ * 1 0 1 0/0, 1/1
+ * 1 1 0 0/0, 0/1, 1/0, 1/1
+ * 1 1 1 0/0, 0/1, 1/1
+ *
+ * If you set MAC_ASYM_PAUSE, the user may request any combination of
+ * tx_pause and rx_pause. You do not have to support these
+ * combinations.
+ *
+ * However, you should support combinations of tx_pause and rx_pause
+ * which might be the result of autonegotation. For example, don't set
+ * MAC_SYM_PAUSE unless your device can support tx_pause and rx_pause
+ * at the same time.
+ */
+ MAC_SYM_PAUSE = BIT(0),
+ MAC_ASYM_PAUSE = BIT(1),
+ MAC_10HD = BIT(2),
+ MAC_10FD = BIT(3),
+ MAC_10 = MAC_10HD | MAC_10FD,
+ MAC_100HD = BIT(4),
+ MAC_100FD = BIT(5),
+ MAC_100 = MAC_100HD | MAC_100FD,
+ MAC_1000HD = BIT(6),
+ MAC_1000FD = BIT(7),
+ MAC_1000 = MAC_1000HD | MAC_1000FD,
+ MAC_2500FD = BIT(8),
+ MAC_5000FD = BIT(9),
+ MAC_10000FD = BIT(10),
+ MAC_20000FD = BIT(11),
+ MAC_25000FD = BIT(12),
+ MAC_40000FD = BIT(13),
+ MAC_50000FD = BIT(14),
+ MAC_56000FD = BIT(15),
+ MAC_100000FD = BIT(16),
+ MAC_200000FD = BIT(17),
+ MAC_400000FD = BIT(18),
+};
+
+static inline bool phylink_autoneg_inband(unsigned int mode)
+{
+ return mode == MLO_AN_INBAND;
+}
+
+/**
+ * struct phylink_link_state - link state structure
+ * @advertising: ethtool bitmask containing advertised link modes
+ * @lp_advertising: ethtool bitmask containing link partner advertised link
+ * modes
+ * @interface: link &typedef phy_interface_t mode
+ * @speed: link speed, one of the SPEED_* constants.
+ * @duplex: link duplex mode, one of DUPLEX_* constants.
+ * @pause: link pause state, described by MLO_PAUSE_* constants.
+ * @rate_matching: rate matching being performed, one of the RATE_MATCH_*
+ * constants. If rate matching is taking place, then the speed/duplex of
+ * the medium link mode (@speed and @duplex) and the speed/duplex of the phy
+ * interface mode (@interface) are different.
+ * @link: true if the link is up.
+ * @an_enabled: true if autonegotiation is enabled/desired.
+ * @an_complete: true if autonegotiation has completed.
+ */
+struct phylink_link_state {
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
+ phy_interface_t interface;
+ int speed;
+ int duplex;
+ int pause;
+ int rate_matching;
+ unsigned int link:1;
+ unsigned int an_enabled:1;
+ unsigned int an_complete:1;
+};
+
+enum phylink_op_type {
+ PHYLINK_NETDEV = 0,
+ PHYLINK_DEV,
+};
+
+/**
+ * struct phylink_config - PHYLINK configuration structure
+ * @dev: a pointer to a struct device associated with the MAC
+ * @type: operation type of PHYLINK instance
+ * @legacy_pre_march2020: driver has not been updated for March 2020 updates
+ * (See commit 7cceb599d15d ("net: phylink: avoid mac_config calls")
+ * @poll_fixed_state: if true, starts link_poll,
+ * if MAC link is at %MLO_AN_FIXED mode.
+ * @mac_managed_pm: if true, indicate the MAC driver is responsible for PHY PM.
+ * @ovr_an_inband: if true, override PCS to MLO_AN_INBAND
+ * @get_fixed_state: callback to execute to determine the fixed link state,
+ * if MAC link is at %MLO_AN_FIXED mode.
+ * @supported_interfaces: bitmap describing which PHY_INTERFACE_MODE_xxx
+ * are supported by the MAC/PCS.
+ * @mac_capabilities: MAC pause/speed/duplex capabilities.
+ */
+struct phylink_config {
+ struct device *dev;
+ enum phylink_op_type type;
+ bool legacy_pre_march2020;
+ bool poll_fixed_state;
+ bool mac_managed_pm;
+ bool ovr_an_inband;
+ void (*get_fixed_state)(struct phylink_config *config,
+ struct phylink_link_state *state);
+ DECLARE_PHY_INTERFACE_MASK(supported_interfaces);
+ unsigned long mac_capabilities;
+};
+
+/**
+ * struct phylink_mac_ops - MAC operations structure.
+ * @validate: Validate and update the link configuration.
+ * @mac_select_pcs: Select a PCS for the interface mode.
+ * @mac_pcs_get_state: Read the current link state from the hardware.
+ * @mac_prepare: prepare for a major reconfiguration of the interface.
+ * @mac_config: configure the MAC for the selected mode and state.
+ * @mac_finish: finish a major reconfiguration of the interface.
+ * @mac_an_restart: restart 802.3z BaseX autonegotiation.
+ * @mac_link_down: take the link down.
+ * @mac_link_up: allow the link to come up.
+ *
+ * The individual methods are described more fully below.
+ */
+struct phylink_mac_ops {
+ void (*validate)(struct phylink_config *config,
+ unsigned long *supported,
+ struct phylink_link_state *state);
+ struct phylink_pcs *(*mac_select_pcs)(struct phylink_config *config,
+ phy_interface_t interface);
+ void (*mac_pcs_get_state)(struct phylink_config *config,
+ struct phylink_link_state *state);
+ int (*mac_prepare)(struct phylink_config *config, unsigned int mode,
+ phy_interface_t iface);
+ void (*mac_config)(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state);
+ int (*mac_finish)(struct phylink_config *config, unsigned int mode,
+ phy_interface_t iface);
+ void (*mac_an_restart)(struct phylink_config *config);
+ void (*mac_link_down)(struct phylink_config *config, unsigned int mode,
+ phy_interface_t interface);
+ void (*mac_link_up)(struct phylink_config *config,
+ struct phy_device *phy, unsigned int mode,
+ phy_interface_t interface, int speed, int duplex,
+ bool tx_pause, bool rx_pause);
+};
+
+#if 0 /* For kernel-doc purposes only. */
+/**
+ * validate - Validate and update the link configuration
+ * @config: a pointer to a &struct phylink_config.
+ * @supported: ethtool bitmask for supported link modes.
+ * @state: a pointer to a &struct phylink_link_state.
+ *
+ * Clear bits in the @supported and @state->advertising masks that
+ * are not supportable by the MAC.
+ *
+ * Note that the PHY may be able to transform from one connection
+ * technology to another, so, eg, don't clear 1000BaseX just
+ * because the MAC is unable to BaseX mode. This is more about
+ * clearing unsupported speeds and duplex settings. The port modes
+ * should not be cleared; phylink_set_port_modes() will help with this.
+ *
+ * When @config->supported_interfaces has been set, phylink will iterate
+ * over the supported interfaces to determine the full capability of the
+ * MAC. The validation function must not print errors if @state->interface
+ * is set to an unexpected value.
+ *
+ * When @config->supported_interfaces is empty, phylink will call this
+ * function with @state->interface set to %PHY_INTERFACE_MODE_NA, and
+ * expects the MAC driver to return all supported link modes.
+ *
+ * If the @state->interface mode is not supported, then the @supported
+ * mask must be cleared.
+ */
+void validate(struct phylink_config *config, unsigned long *supported,
+ struct phylink_link_state *state);
+/**
+ * mac_select_pcs: Select a PCS for the interface mode.
+ * @config: a pointer to a &struct phylink_config.
+ * @interface: PHY interface mode for PCS
+ *
+ * Return the &struct phylink_pcs for the specified interface mode, or
+ * NULL if none is required, or an error pointer on error.
+ *
+ * This must not modify any state. It is used to query which PCS should
+ * be used. Phylink will use this during validation to ensure that the
+ * configuration is valid, and when setting a configuration to internally
+ * set the PCS that will be used.
+ */
+struct phylink_pcs *mac_select_pcs(struct phylink_config *config,
+ phy_interface_t interface);
+
+/**
+ * mac_pcs_get_state() - Read the current inband link state from the hardware
+ * @config: a pointer to a &struct phylink_config.
+ * @state: a pointer to a &struct phylink_link_state.
+ *
+ * Read the current inband link state from the MAC PCS, reporting the
+ * current speed in @state->speed, duplex mode in @state->duplex, pause
+ * mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
+ * negotiation completion state in @state->an_complete, and link up state
+ * in @state->link. If possible, @state->lp_advertising should also be
+ * populated.
+ *
+ * Note: This is a legacy method. This function will not be called unless
+ * legacy_pre_march2020 is set in &struct phylink_config and there is no
+ * PCS attached.
+ */
+void mac_pcs_get_state(struct phylink_config *config,
+ struct phylink_link_state *state);
+
+/**
+ * mac_prepare() - prepare to change the PHY interface mode
+ * @config: a pointer to a &struct phylink_config.
+ * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @iface: interface mode to switch to
+ *
+ * phylink will call this method at the beginning of a full initialisation
+ * of the link, which includes changing the interface mode or at initial
+ * startup time. It may be called for the current mode. The MAC driver
+ * should perform whatever actions are required, e.g. disabling the
+ * Serdes PHY.
+ *
+ * This will be the first call in the sequence:
+ * - mac_prepare()
+ * - mac_config()
+ * - pcs_config()
+ * - possible pcs_an_restart()
+ * - mac_finish()
+ *
+ * Returns zero on success, or negative errno on failure which will be
+ * reported to the kernel log.
+ */
+int mac_prepare(struct phylink_config *config, unsigned int mode,
+ phy_interface_t iface);
+
+/**
+ * mac_config() - configure the MAC for the selected mode and state
+ * @config: a pointer to a &struct phylink_config.
+ * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @state: a pointer to a &struct phylink_link_state.
+ *
+ * Note - not all members of @state are valid. In particular,
+ * @state->lp_advertising, @state->link, @state->an_complete are never
+ * guaranteed to be correct, and so any mac_config() implementation must
+ * never reference these fields.
+ *
+ * Note: For legacy March 2020 drivers (drivers with legacy_pre_march2020 set
+ * in their &phylnk_config and which don't have a PCS), this function will be
+ * called on each link up event, and to also change the in-band advert. For
+ * non-legacy drivers, it will only be called to reconfigure the MAC for a
+ * "major" change in e.g. interface mode. It will not be called for changes
+ * in speed, duplex or pause modes or to change the in-band advertisement.
+ * In any case, it is strongly preferred that speed, duplex and pause settings
+ * are handled in the mac_link_up() method and not in this method.
+ *
+ * (this requires a rewrite - please refer to mac_link_up() for situations
+ * where the PCS and MAC are not tightly integrated.)
+ *
+ * In all negotiation modes, as defined by @mode, @state->pause indicates the
+ * pause settings which should be applied as follows. If %MLO_PAUSE_AN is not
+ * set, %MLO_PAUSE_TX and %MLO_PAUSE_RX indicate whether the MAC should send
+ * pause frames and/or act on received pause frames respectively. Otherwise,
+ * the results of in-band negotiation/status from the MAC PCS should be used
+ * to control the MAC pause mode settings.
+ *
+ * The action performed depends on the currently selected mode:
+ *
+ * %MLO_AN_FIXED, %MLO_AN_PHY:
+ * Configure for non-inband negotiation mode, where the link settings
+ * are completely communicated via mac_link_up(). The physical link
+ * protocol from the MAC is specified by @state->interface.
+ *
+ * @state->advertising may be used, but is not required.
+ *
+ * Older drivers (prior to the mac_link_up() change) may use @state->speed,
+ * @state->duplex and @state->pause to configure the MAC, but this is
+ * deprecated; such drivers should be converted to use mac_link_up().
+ *
+ * Other members of @state must be ignored.
+ *
+ * Valid state members: interface, advertising.
+ * Deprecated state members: speed, duplex, pause.
+ *
+ * %MLO_AN_INBAND:
+ * place the link in an inband negotiation mode (such as 802.3z
+ * 1000base-X or Cisco SGMII mode depending on the @state->interface
+ * mode). In both cases, link state management (whether the link
+ * is up or not) is performed by the MAC, and reported via the
+ * mac_pcs_get_state() callback. Changes in link state must be made
+ * by calling phylink_mac_change().
+ *
+ * Interface mode specific details are mentioned below.
+ *
+ * If in 802.3z mode, the link speed is fixed, dependent on the
+ * @state->interface. Duplex and pause modes are negotiated via
+ * the in-band configuration word. Advertised pause modes are set
+ * according to the @state->an_enabled and @state->advertising
+ * flags. Beware of MACs which only support full duplex at gigabit
+ * and higher speeds.
+ *
+ * If in Cisco SGMII mode, the link speed and duplex mode are passed
+ * in the serial bitstream 16-bit configuration word, and the MAC
+ * should be configured to read these bits and acknowledge the
+ * configuration word. Nothing is advertised by the MAC. The MAC is
+ * responsible for reading the configuration word and configuring
+ * itself accordingly.
+ *
+ * Valid state members: interface, an_enabled, pause, advertising.
+ *
+ * Implementations are expected to update the MAC to reflect the
+ * requested settings - i.o.w., if nothing has changed between two
+ * calls, no action is expected. If only flow control settings have
+ * changed, flow control should be updated *without* taking the link
+ * down. This "update" behaviour is critical to avoid bouncing the
+ * link up status.
+ */
+void mac_config(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state);
+
+/**
+ * mac_finish() - finish a to change the PHY interface mode
+ * @config: a pointer to a &struct phylink_config.
+ * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @iface: interface mode to switch to
+ *
+ * phylink will call this if it called mac_prepare() to allow the MAC to
+ * complete any necessary steps after the MAC and PCS have been configured
+ * for the @mode and @iface. E.g. a MAC driver may wish to re-enable the
+ * Serdes PHY here if it was previously disabled by mac_prepare().
+ *
+ * Returns zero on success, or negative errno on failure which will be
+ * reported to the kernel log.
+ */
+int mac_finish(struct phylink_config *config, unsigned int mode,
+ phy_interface_t iface);
+
+/**
+ * mac_an_restart() - restart 802.3z BaseX autonegotiation
+ * @config: a pointer to a &struct phylink_config.
+ *
+ * Note: This is a legacy method. This function will not be called unless
+ * legacy_pre_march2020 is set in &struct phylink_config and there is no
+ * PCS attached.
+ */
+void mac_an_restart(struct phylink_config *config);
+
+/**
+ * mac_link_down() - take the link down
+ * @config: a pointer to a &struct phylink_config.
+ * @mode: link autonegotiation mode
+ * @interface: link &typedef phy_interface_t mode
+ *
+ * If @mode is not an in-band negotiation mode (as defined by
+ * phylink_autoneg_inband()), force the link down and disable any
+ * Energy Efficient Ethernet MAC configuration. Interface type
+ * selection must be done in mac_config().
+ */
+void mac_link_down(struct phylink_config *config, unsigned int mode,
+ phy_interface_t interface);
+
+/**
+ * mac_link_up() - allow the link to come up
+ * @config: a pointer to a &struct phylink_config.
+ * @phy: any attached phy
+ * @mode: link autonegotiation mode
+ * @interface: link &typedef phy_interface_t mode
+ * @speed: link speed
+ * @duplex: link duplex
+ * @tx_pause: link transmit pause enablement status
+ * @rx_pause: link receive pause enablement status
+ *
+ * Configure the MAC for an established link.
+ *
+ * @speed, @duplex, @tx_pause and @rx_pause indicate the finalised link
+ * settings, and should be used to configure the MAC block appropriately
+ * where these settings are not automatically conveyed from the PCS block,
+ * or if in-band negotiation (as defined by phylink_autoneg_inband(@mode))
+ * is disabled.
+ *
+ * Note that when 802.3z in-band negotiation is in use, it is possible
+ * that the user wishes to override the pause settings, and this should
+ * be allowed when considering the implementation of this method.
+ *
+ * If in-band negotiation mode is disabled, allow the link to come up. If
+ * @phy is non-%NULL, configure Energy Efficient Ethernet by calling
+ * phy_init_eee() and perform appropriate MAC configuration for EEE.
+ * Interface type selection must be done in mac_config().
+ */
+void mac_link_up(struct phylink_config *config, struct phy_device *phy,
+ unsigned int mode, phy_interface_t interface,
+ int speed, int duplex, bool tx_pause, bool rx_pause);
+#endif
+
+struct phylink_pcs_ops;
+
+/**
+ * struct phylink_pcs - PHYLINK PCS instance
+ * @ops: a pointer to the &struct phylink_pcs_ops structure
+ * @poll: poll the PCS for link changes
+ *
+ * This structure is designed to be embedded within the PCS private data,
+ * and will be passed between phylink and the PCS.
+ */
+struct phylink_pcs {
+ const struct phylink_pcs_ops *ops;
+ bool poll;
+};
+
+/**
+ * struct phylink_pcs_ops - MAC PCS operations structure.
+ * @pcs_validate: validate the link configuration.
+ * @pcs_get_state: read the current MAC PCS link state from the hardware.
+ * @pcs_config: configure the MAC PCS for the selected mode and state.
+ * @pcs_an_restart: restart 802.3z BaseX autonegotiation.
+ * @pcs_link_up: program the PCS for the resolved link configuration
+ * (where necessary).
+ */
+struct phylink_pcs_ops {
+ int (*pcs_validate)(struct phylink_pcs *pcs, unsigned long *supported,
+ const struct phylink_link_state *state);
+ void (*pcs_get_state)(struct phylink_pcs *pcs,
+ struct phylink_link_state *state);
+ int (*pcs_config)(struct phylink_pcs *pcs, unsigned int mode,
+ phy_interface_t interface,
+ const unsigned long *advertising,
+ bool permit_pause_to_mac);
+ void (*pcs_an_restart)(struct phylink_pcs *pcs);
+ void (*pcs_link_up)(struct phylink_pcs *pcs, unsigned int mode,
+ phy_interface_t interface, int speed, int duplex);
+};
+
+#if 0 /* For kernel-doc purposes only. */
+/**
+ * pcs_validate() - validate the link configuration.
+ * @pcs: a pointer to a &struct phylink_pcs.
+ * @supported: ethtool bitmask for supported link modes.
+ * @state: a const pointer to a &struct phylink_link_state.
+ *
+ * Validate the interface mode, and advertising's autoneg bit, removing any
+ * media ethtool link modes that would not be supportable from the supported
+ * mask. Phylink will propagate the changes to the advertising mask. See the
+ * &struct phylink_mac_ops validate() method.
+ *
+ * Returns -EINVAL if the interface mode/autoneg mode is not supported.
+ * Returns non-zero positive if the link state can be supported.
+ */
+int pcs_validate(struct phylink_pcs *pcs, unsigned long *supported,
+ const struct phylink_link_state *state);
+
+/**
+ * pcs_get_state() - Read the current inband link state from the hardware
+ * @pcs: a pointer to a &struct phylink_pcs.
+ * @state: a pointer to a &struct phylink_link_state.
+ *
+ * Read the current inband link state from the MAC PCS, reporting the
+ * current speed in @state->speed, duplex mode in @state->duplex, pause
+ * mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
+ * negotiation completion state in @state->an_complete, and link up state
+ * in @state->link. If possible, @state->lp_advertising should also be
+ * populated.
+ *
+ * When present, this overrides mac_pcs_get_state() in &struct
+ * phylink_mac_ops.
+ */
+void pcs_get_state(struct phylink_pcs *pcs,
+ struct phylink_link_state *state);
+
+/**
+ * pcs_config() - Configure the PCS mode and advertisement
+ * @pcs: a pointer to a &struct phylink_pcs.
+ * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @interface: interface mode to be used
+ * @advertising: adertisement ethtool link mode mask
+ * @permit_pause_to_mac: permit forwarding pause resolution to MAC
+ *
+ * Configure the PCS for the operating mode, the interface mode, and set
+ * the advertisement mask. @permit_pause_to_mac indicates whether the
+ * hardware may forward the pause mode resolution to the MAC.
+ *
+ * When operating in %MLO_AN_INBAND, inband should always be enabled,
+ * otherwise inband should be disabled.
+ *
+ * For SGMII, there is no advertisement from the MAC side, the PCS should
+ * be programmed to acknowledge the inband word from the PHY.
+ *
+ * For 1000BASE-X, the advertisement should be programmed into the PCS.
+ *
+ * For most 10GBASE-R, there is no advertisement.
+ */
+int pcs_config(struct phylink_pcs *pcs, unsigned int mode,
+ phy_interface_t interface, const unsigned long *advertising,
+ bool permit_pause_to_mac);
+
+/**
+ * pcs_an_restart() - restart 802.3z BaseX autonegotiation
+ * @pcs: a pointer to a &struct phylink_pcs.
+ *
+ * When PCS ops are present, this overrides mac_an_restart() in &struct
+ * phylink_mac_ops.
+ */
+void pcs_an_restart(struct phylink_pcs *pcs);
+
+/**
+ * pcs_link_up() - program the PCS for the resolved link configuration
+ * @pcs: a pointer to a &struct phylink_pcs.
+ * @mode: link autonegotiation mode
+ * @interface: link &typedef phy_interface_t mode
+ * @speed: link speed
+ * @duplex: link duplex
+ *
+ * This call will be made just before mac_link_up() to inform the PCS of
+ * the resolved link parameters. For example, a PCS operating in SGMII
+ * mode without in-band AN needs to be manually configured for the link
+ * and duplex setting. Otherwise, this should be a no-op.
+ */
+void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
+ phy_interface_t interface, int speed, int duplex);
+#endif
+
+void phylink_caps_to_linkmodes(unsigned long *linkmodes, unsigned long caps);
+unsigned long phylink_get_capabilities(phy_interface_t interface,
+ unsigned long mac_capabilities,
+ int rate_matching);
+void phylink_generic_validate(struct phylink_config *config,
+ unsigned long *supported,
+ struct phylink_link_state *state);
+
+struct phylink *phylink_create(struct phylink_config *, struct fwnode_handle *,
+ phy_interface_t iface,
+ const struct phylink_mac_ops *mac_ops);
+void phylink_destroy(struct phylink *);
+bool phylink_expects_phy(struct phylink *pl);
+
+int phylink_connect_phy(struct phylink *, struct phy_device *);
+int phylink_of_phy_connect(struct phylink *, struct device_node *, u32 flags);
+int phylink_fwnode_phy_connect(struct phylink *pl,
+ struct fwnode_handle *fwnode,
+ u32 flags);
+void phylink_disconnect_phy(struct phylink *);
+
+void phylink_mac_change(struct phylink *, bool up);
+
+void phylink_start(struct phylink *);
+void phylink_stop(struct phylink *);
+
+void phylink_suspend(struct phylink *pl, bool mac_wol);
+void phylink_resume(struct phylink *pl);
+
+void phylink_ethtool_get_wol(struct phylink *, struct ethtool_wolinfo *);
+int phylink_ethtool_set_wol(struct phylink *, struct ethtool_wolinfo *);
+
+int phylink_ethtool_ksettings_get(struct phylink *,
+ struct ethtool_link_ksettings *);
+int phylink_ethtool_ksettings_set(struct phylink *,
+ const struct ethtool_link_ksettings *);
+int phylink_ethtool_nway_reset(struct phylink *);
+void phylink_ethtool_get_pauseparam(struct phylink *,
+ struct ethtool_pauseparam *);
+int phylink_ethtool_set_pauseparam(struct phylink *,
+ struct ethtool_pauseparam *);
+int phylink_get_eee_err(struct phylink *);
+int phylink_init_eee(struct phylink *, bool);
+int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
+int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);
+int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
+int phylink_speed_down(struct phylink *pl, bool sync);
+int phylink_speed_up(struct phylink *pl);
+
+#define phylink_zero(bm) \
+ bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)
+#define __phylink_do_bit(op, bm, mode) \
+ op(ETHTOOL_LINK_MODE_ ## mode ## _BIT, bm)
+
+#define phylink_set(bm, mode) __phylink_do_bit(__set_bit, bm, mode)
+#define phylink_clear(bm, mode) __phylink_do_bit(__clear_bit, bm, mode)
+#define phylink_test(bm, mode) __phylink_do_bit(test_bit, bm, mode)
+
+void phylink_set_port_modes(unsigned long *bits);
+
+void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state,
+ u16 bmsr, u16 lpa);
+void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,
+ struct phylink_link_state *state);
+int phylink_mii_c22_pcs_encode_advertisement(phy_interface_t interface,
+ const unsigned long *advertising);
+int phylink_mii_c22_pcs_config(struct mdio_device *pcs, unsigned int mode,
+ phy_interface_t interface,
+ const unsigned long *advertising);
+void phylink_mii_c22_pcs_an_restart(struct mdio_device *pcs);
+
+void phylink_mii_c45_pcs_get_state(struct mdio_device *pcs,
+ struct phylink_link_state *state);
+
+void phylink_decode_usxgmii_word(struct phylink_link_state *state,
+ uint16_t lpa);
+#endif