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diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
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+/*
+ * Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_DRIVER_H
+#define MLX4_DRIVER_H
+
+#include <linux/mlx4/device.h>
+
+struct mlx4_dev;
+
+enum mlx4_dev_event {
+ MLX4_DEV_EVENT_CATASTROPHIC_ERROR,
+ MLX4_DEV_EVENT_PORT_UP,
+ MLX4_DEV_EVENT_PORT_DOWN,
+ MLX4_DEV_EVENT_PORT_REINIT,
+};
+
+struct mlx4_interface {
+ void * (*add) (struct mlx4_dev *dev);
+ void (*remove)(struct mlx4_dev *dev, void *context);
+ void (*event) (struct mlx4_dev *dev, void *context,
+ enum mlx4_dev_event event, int port);
+ void * (*get_dev)(struct mlx4_dev *dev, void *context, u8 port);
+ struct list_head list;
+ enum mlx4_protocol protocol;
+};
+
+int mlx4_register_interface(struct mlx4_interface *intf);
+void mlx4_unregister_interface(struct mlx4_interface *intf);
+
+void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port);
+
+#endif /* MLX4_DRIVER_H */