1 files changed, 100 insertions, 0 deletions
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
new file mode 100644
index 000000000000..3fef6e5fea82
--- /dev/null
+++ b/include/linux/phylink.h
@@ -0,0 +1,100 @@
+#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 net_device;
+
+enum {
+	MLO_PAUSE_NONE,
+	MLO_PAUSE_ASYM = BIT(0),
+	MLO_PAUSE_SYM = BIT(1),
+
+	MLO_AN_PHY = 0,
+	MLO_AN_FIXED,
+	MLO_AN_SGMII,
+	MLO_AN_8023Z,
+};
+
+struct phylink_link_state {
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
+	int speed;
+	int duplex;
+	int pause;
+	unsigned int link:1;
+	unsigned int an_enabled:1;
+	unsigned int an_complete:1;
+};
+
+struct phylink_mac_ops {
+	/**
+	 * @validate_support:
+	 *
+	 * Validate and update the support mask provided by a PHY or
+	 * module.  Unsupported link modes should be cleared by the
+	 * MAC.
+	 *
+	 * Note: the PHY may be able to transform from one connection
+	 * technology to another, so, eg, don't clear 1000base-X just
+	 * because the MAC is unable to support it.  This is more about
+	 * clearing unsupported speeds and duplex settings.
+	 */
+	void (*validate_support)(struct net_device *, unsigned int mode,
+				 unsigned long *support);
+
+	/**
+	 * @validate_advert:
+	 *
+	 * Validate and update the advertisment mask, clearing bits that
+	 * can not be advertised in the chosen mode or with each other.
+	 */
+	void (*validate_advert)(struct net_device *, unsigned int mode,
+				const unsigned long *support,
+				unsigned long *advert);
+
+	/* Read the current link state from the hardware */
+	int (*mac_link_state)(struct net_device *, struct phylink_link_state *);
+
+	/* Configure the MAC */
+	void (*mac_config)(struct net_device *, unsigned int mode,
+			   const struct phylink_link_state *);
+	void (*mac_an_restart)(struct net_device *, unsigned int mode);
+
+	void (*mac_link_down)(struct net_device *, unsigned int mode);
+	void (*mac_link_up)(struct net_device *, unsigned int mode);
+};
+
+struct phylink *phylink_create(struct net_device *, struct device_node *,
+	phy_interface_t iface, const struct phylink_mac_ops *ops);
+void phylink_destroy(struct phylink *);
+
+int phylink_connect_phy(struct phylink *, struct phy_device *);
+int phylink_of_phy_connect(struct phylink *, struct device_node *);
+void phylink_disconnect_phy(struct phylink *);
+
+void phylink_mac_change(struct phylink *, bool up);
+
+void phylink_start(struct phylink *);
+void phylink_stop(struct phylink *);
+
+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_mii_ioctl(struct phylink *, struct ifreq *, int);
+
+#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)
+
+#endif