LXR linux/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
  39struct mlx4_dev;
  40
  41#define MLX4_MAC_MASK      0xffffffffffffULL
  42
  43enum 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
  53enum {
  54        MLX4_INTFF_BONDING      = 1 << 0
  55};
  56
  57struct 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
  69int mlx4_register_interface(struct mlx4_interface *intf);
  70void mlx4_unregister_interface(struct mlx4_interface *intf);
  71
  72int mlx4_bond(struct mlx4_dev *dev);
  73int mlx4_unbond(struct mlx4_dev *dev);
  74static inline int mlx4_is_bonded(struct mlx4_dev *dev)
  75{
  76        return !!(dev->flags & MLX4_FLAG_BONDED);
  77}
  78
  79static inline int mlx4_is_mf_bonded(struct mlx4_dev *dev)
  80{
  81        return (mlx4_is_bonded(dev) && mlx4_is_mfunc(dev));
  82}
  83
  84struct mlx4_port_map {
  85        u8      port1;
  86        u8      port2;
  87};
  88
  89int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p);
  90
  91void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port);
  92
  93struct devlink_port *mlx4_get_devlink_port(struct mlx4_dev *dev, int port);
  94
  95static 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
 107static 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 */
 118