1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c b/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c
new file mode 100644
index 000000000000..6c3452cf5d7d
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025, Intel Corporation. */
+
+#include "ixgbe.h"
+#include "devlink.h"
+
+static const struct devlink_ops ixgbe_devlink_ops = {
+};
+
+/**
+ * ixgbe_allocate_devlink - Allocate devlink instance
+ * @dev: device to allocate devlink for
+ *
+ * Allocate a devlink instance for this physical function.
+ *
+ * Return: pointer to the device adapter structure on success,
+ * ERR_PTR(-ENOMEM) when allocation failed.
+ */
+struct ixgbe_adapter *ixgbe_allocate_devlink(struct device *dev)
+{
+	struct ixgbe_adapter *adapter;
+	struct devlink *devlink;
+
+	devlink = devlink_alloc(&ixgbe_devlink_ops, sizeof(*adapter), dev);
+	if (!devlink)
+		return ERR_PTR(-ENOMEM);
+
+	adapter = devlink_priv(devlink);
+	adapter->devlink = devlink;
+
+	return adapter;
+}
+
+/**
+ * ixgbe_devlink_set_switch_id - Set unique switch ID based on PCI DSN
+ * @adapter: pointer to the device adapter structure
+ * @ppid: struct with switch id information
+ */
+static void ixgbe_devlink_set_switch_id(struct ixgbe_adapter *adapter,
+					struct netdev_phys_item_id *ppid)
+{
+	u64 id = pci_get_dsn(adapter->pdev);
+
+	ppid->id_len = sizeof(id);
+	put_unaligned_be64(id, &ppid->id);
+}
+
+/**
+ * ixgbe_devlink_register_port - Register devlink port
+ * @adapter: pointer to the device adapter structure
+ *
+ * Create and register a devlink_port for this physical function.
+ *
+ * Return: 0 on success, error code on failure.
+ */
+int ixgbe_devlink_register_port(struct ixgbe_adapter *adapter)
+{
+	struct devlink_port *devlink_port = &adapter->devlink_port;
+	struct devlink *devlink = adapter->devlink;
+	struct device *dev = &adapter->pdev->dev;
+	struct devlink_port_attrs attrs = {};
+	int err;
+
+	attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+	attrs.phys.port_number = adapter->hw.bus.func;
+	ixgbe_devlink_set_switch_id(adapter, &attrs.switch_id);
+
+	devlink_port_attrs_set(devlink_port, &attrs);
+
+	err = devl_port_register(devlink, devlink_port, 0);
+	if (err) {
+		dev_err(dev,
+			"devlink port registration failed, err %d\n", err);
+	}
+
+	return err;
+}