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 <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);
  74 static inline int mlx4_is_bonded(struct mlx4_dev *dev)
  75 {
  76         return !!(dev->flags & MLX4_FLAG_BONDED);
  77 }
  78
  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 static inline u64 mlx4_mac_to_u64(u8 *addr)
  96 {
  97         u64 mac = 0;
  98         int i;
  99
 100         for (i = 0; i < ETH_ALEN; i++) {
 101                 mac <<= 8;
 102                 mac |= addr[i];
 103         }
 104         return mac;
 105 }
 106
 107 static inline void mlx4_u64_to_mac(u8 *addr, u64 mac)
 108 {
 109         int i;
 110
 111         for (i = ETH_ALEN; i > 0; i--) {
 112                 addr[i - 1] = mac & 0xFF;
 113                 mac >>= 8;
 114         }
 115 }
 116
 117 #endif /* MLX4_DRIVER_H */