1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/net/ethernet/tehuti/tn40_phy.c b/drivers/net/ethernet/tehuti/tn40_phy.c
new file mode 100644
index 000000000000..39eef7ca7958
--- /dev/null
+++ b/drivers/net/ethernet/tehuti/tn40_phy.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) Tehuti Networks Ltd. */
+
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/phylink.h>
+
+#include "tn40.h"
+
+static struct tn40_priv *tn40_config_to_priv(struct phylink_config *config)
+{
+	return container_of(config, struct tn40_priv, phylink_config);
+}
+
+static void tn40_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)
+{
+	struct tn40_priv *priv = tn40_config_to_priv(config);
+
+	tn40_set_link_speed(priv, speed);
+	netif_wake_queue(priv->ndev);
+}
+
+static void tn40_link_down(struct phylink_config *config, unsigned int mode,
+			   phy_interface_t interface)
+{
+	struct tn40_priv *priv = tn40_config_to_priv(config);
+
+	netif_stop_queue(priv->ndev);
+	tn40_set_link_speed(priv, 0);
+}
+
+static void tn40_mac_config(struct phylink_config *config, unsigned int mode,
+			    const struct phylink_link_state *state)
+{
+}
+
+static const struct phylink_mac_ops tn40_mac_ops = {
+	.mac_config = tn40_mac_config,
+	.mac_link_up = tn40_link_up,
+	.mac_link_down = tn40_link_down,
+};
+
+int tn40_phy_register(struct tn40_priv *priv)
+{
+	struct phylink_config *config;
+	struct phy_device *phydev;
+	struct phylink *phylink;
+
+	phydev = phy_find_first(priv->mdio);
+	if (!phydev) {
+		dev_err(&priv->pdev->dev, "PHY isn't found\n");
+		return -ENODEV;
+	}
+
+	config = &priv->phylink_config;
+	config->dev = &priv->ndev->dev;
+	config->type = PHYLINK_NETDEV;
+	config->mac_capabilities = MAC_10000FD;
+	__set_bit(PHY_INTERFACE_MODE_XAUI, config->supported_interfaces);
+
+	phylink = phylink_create(config, NULL, PHY_INTERFACE_MODE_XAUI,
+				 &tn40_mac_ops);
+	if (IS_ERR(phylink))
+		return PTR_ERR(phylink);
+
+	priv->phydev = phydev;
+	priv->phylink = phylink;
+	return 0;
+}
+
+void tn40_phy_unregister(struct tn40_priv *priv)
+{
+	phylink_destroy(priv->phylink);
+}