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Linux/include/linux/mlx4/driver.h

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  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 */
118 

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