include/linux/mlx4/driver.h

   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 <linux/mlx4/device.h>
  37
  38 struct mlx4_dev;
  39
  40 #define MLX4_MAC_MASK      0xffffffffffffULL
  41
  42 enum mlx4_dev_event {
  43         MLX4_DEV_EVENT_CATASTROPHIC_ERROR,
  44         MLX4_DEV_EVENT_PORT_UP,
  45         MLX4_DEV_EVENT_PORT_DOWN,
  46         MLX4_DEV_EVENT_PORT_REINIT,
  47         MLX4_DEV_EVENT_PORT_MGMT_CHANGE,
  48         MLX4_DEV_EVENT_SLAVE_INIT,
  49         MLX4_DEV_EVENT_SLAVE_SHUTDOWN,
  50 };
  51
  52 struct mlx4_interface {
  53         void *                  (*add)   (struct mlx4_dev *dev);
  54         void                    (*remove)(struct mlx4_dev *dev, void *context);
  55         void                    (*event) (struct mlx4_dev *dev, void *context,
  56                                           enum mlx4_dev_event event, unsigned long param);
  57         void *                  (*get_dev)(struct mlx4_dev *dev, void *context, u8 port);
  58         struct list_head        list;
  59         enum mlx4_protocol      protocol;
  60 };
  61
  62 int mlx4_register_interface(struct mlx4_interface *intf);
  63 void mlx4_unregister_interface(struct mlx4_interface *intf);
  64
  65 void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port);
  66
  67 static inline u64 mlx4_mac_to_u64(u8 *addr)
  68 {
  69         u64 mac = 0;
  70         int i;
  71
  72         for (i = 0; i < ETH_ALEN; i++) {
  73                 mac <<= 8;
  74                 mac |= addr[i];
  75         }
  76         return mac;
  77 }
  78
  79 #endif /* MLX4_DRIVER_H */