1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/en/devlink.c
new file mode 100644
index 000000000..b69f9d10c
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/devlink.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2020, Mellanox Technologies inc.  All rights reserved. */
+
+#include "en/devlink.h"
+#include "eswitch.h"
+
+static void
+mlx5e_devlink_get_port_parent_id(struct mlx5_core_dev *dev, struct netdev_phys_item_id *ppid)
+{
+	u64 parent_id;
+
+	parent_id = mlx5_query_nic_system_image_guid(dev);
+	ppid->id_len = sizeof(parent_id);
+	memcpy(ppid->id, &parent_id, sizeof(parent_id));
+}
+
+int mlx5e_devlink_port_register(struct mlx5e_priv *priv)
+{
+	struct devlink *devlink = priv_to_devlink(priv->mdev);
+	struct devlink_port_attrs attrs = {};
+	struct netdev_phys_item_id ppid = {};
+	struct devlink_port *dl_port;
+	unsigned int dl_port_index;
+	int ret;
+
+	if (mlx5_core_is_pf(priv->mdev)) {
+		attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+		attrs.phys.port_number = mlx5_get_dev_index(priv->mdev);
+		if (MLX5_ESWITCH_MANAGER(priv->mdev)) {
+			mlx5e_devlink_get_port_parent_id(priv->mdev, &ppid);
+			memcpy(attrs.switch_id.id, ppid.id, ppid.id_len);
+			attrs.switch_id.id_len = ppid.id_len;
+		}
+		dl_port_index = mlx5_esw_vport_to_devlink_port_index(priv->mdev,
+								     MLX5_VPORT_UPLINK);
+	} else {
+		attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL;
+		dl_port_index = mlx5_esw_vport_to_devlink_port_index(priv->mdev, 0);
+	}
+
+	dl_port = mlx5e_devlink_get_dl_port(priv);
+	memset(dl_port, 0, sizeof(*dl_port));
+	devlink_port_attrs_set(dl_port, &attrs);
+
+	if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_MLX5E_LOCKED_FLOW))
+		devl_lock(devlink);
+	ret = devl_port_register(devlink, dl_port, dl_port_index);
+	if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_MLX5E_LOCKED_FLOW))
+		devl_unlock(devlink);
+
+	return ret;
+}
+
+void mlx5e_devlink_port_type_eth_set(struct mlx5e_priv *priv)
+{
+	struct devlink_port *dl_port = mlx5e_devlink_get_dl_port(priv);
+
+	devlink_port_type_eth_set(dl_port, priv->netdev);
+}
+
+void mlx5e_devlink_port_unregister(struct mlx5e_priv *priv)
+{
+	struct devlink_port *dl_port = mlx5e_devlink_get_dl_port(priv);
+	struct devlink *devlink = priv_to_devlink(priv->mdev);
+
+	if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_MLX5E_LOCKED_FLOW))
+		devl_lock(devlink);
+	devl_port_unregister(dl_port);
+	if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_MLX5E_LOCKED_FLOW))
+		devl_unlock(devlink);
+}
+
+struct devlink_port *mlx5e_get_devlink_port(struct net_device *dev)
+{
+	struct mlx5e_priv *priv = netdev_priv(dev);
+
+	if (!netif_device_present(dev))
+		return NULL;
+
+	return mlx5e_devlink_get_dl_port(priv);
+}