1 /*
2  * Copyright (c) 2006 Cisco Systems, Inc.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #ifndef MLX4_DRIVER_H
34 #define MLX4_DRIVER_H
35 
36 #include <net/devlink.h>
37 #include <linux/mlx4/device.h>
38 
39 struct mlx4_dev;
40 
41 #define MLX4_MAC_MASK	   0xffffffffffffULL
42 
43 enum mlx4_dev_event {
44 	MLX4_DEV_EVENT_CATASTROPHIC_ERROR,
45 	MLX4_DEV_EVENT_PORT_UP,
46 	MLX4_DEV_EVENT_PORT_DOWN,
47 	MLX4_DEV_EVENT_PORT_REINIT,
48 	MLX4_DEV_EVENT_PORT_MGMT_CHANGE,
49 	MLX4_DEV_EVENT_SLAVE_INIT,
50 	MLX4_DEV_EVENT_SLAVE_SHUTDOWN,
51 };
52 
53 enum {
54 	MLX4_INTFF_BONDING	= 1 << 0
55 };
56 
57 struct mlx4_interface {
58 	void *			(*add)	 (struct mlx4_dev *dev);
59 	void			(*remove)(struct mlx4_dev *dev, void *context);
60 	void			(*event) (struct mlx4_dev *dev, void *context,
61 					  enum mlx4_dev_event event, unsigned long param);
62 	void *			(*get_dev)(struct mlx4_dev *dev, void *context, u8 port);
63 	void			(*activate)(struct mlx4_dev *dev, void *context);
64 	struct list_head	list;
65 	enum mlx4_protocol	protocol;
66 	int			flags;
67 };
68 
69 int mlx4_register_interface(struct mlx4_interface *intf);
70 void mlx4_unregister_interface(struct mlx4_interface *intf);
71 
72 int mlx4_bond(struct mlx4_dev *dev);
73 int mlx4_unbond(struct mlx4_dev *dev);
mlx4_is_bonded(struct mlx4_dev * dev)74 static inline int mlx4_is_bonded(struct mlx4_dev *dev)
75 {
76 	return !!(dev->flags & MLX4_FLAG_BONDED);
77 }
78 
mlx4_is_mf_bonded(struct mlx4_dev * dev)79 static inline int mlx4_is_mf_bonded(struct mlx4_dev *dev)
80 {
81 	return (mlx4_is_bonded(dev) && mlx4_is_mfunc(dev));
82 }
83 
84 struct mlx4_port_map {
85 	u8	port1;
86 	u8	port2;
87 };
88 
89 int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p);
90 
91 void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port);
92 
93 struct devlink_port *mlx4_get_devlink_port(struct mlx4_dev *dev, int port);
94 
95 #endif /* MLX4_DRIVER_H */
96