include/linux/mlx4/driver.h

/*
 * Copyright (c) 2006 Cisco Systems, Inc.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef MLX4_DRIVER_H
#define MLX4_DRIVER_H

#include <net/devlink.h>
#include <linux/mlx4/device.h>

struct mlx4_dev;

#define MLX4_MAC_MASK	   0xffffffffffffULL

enum mlx4_dev_event {
	MLX4_DEV_EVENT_CATASTROPHIC_ERROR,
	MLX4_DEV_EVENT_PORT_UP,
	MLX4_DEV_EVENT_PORT_DOWN,
	MLX4_DEV_EVENT_PORT_REINIT,
	MLX4_DEV_EVENT_PORT_MGMT_CHANGE,
	MLX4_DEV_EVENT_SLAVE_INIT,
	MLX4_DEV_EVENT_SLAVE_SHUTDOWN,
};

enum {
	MLX4_INTFF_BONDING	= 1 << 0
};

struct mlx4_interface {
	void *			(*add)	 (struct mlx4_dev *dev);
	void			(*remove)(struct mlx4_dev *dev, void *context);
	void			(*event) (struct mlx4_dev *dev, void *context,
					  enum mlx4_dev_event event, unsigned long param);
	void *			(*get_dev)(struct mlx4_dev *dev, void *context, u8 port);
	void			(*activate)(struct mlx4_dev *dev, void *context);
	struct list_head	list;
	enum mlx4_protocol	protocol;
	int			flags;
};

int mlx4_register_interface(struct mlx4_interface *intf);
void mlx4_unregister_interface(struct mlx4_interface *intf);

int mlx4_bond(struct mlx4_dev *dev);
int mlx4_unbond(struct mlx4_dev *dev);
static inline int mlx4_is_bonded(struct mlx4_dev *dev)
{
	return !!(dev->flags & MLX4_FLAG_BONDED);
}

static inline int mlx4_is_mf_bonded(struct mlx4_dev *dev)
{
	return (mlx4_is_bonded(dev) && mlx4_is_mfunc(dev));
}

struct mlx4_port_map {
	u8	port1;
	u8	port2;
};

int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p);

void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port);

struct devlink_port *mlx4_get_devlink_port(struct mlx4_dev *dev, int port);

static inline u64 mlx4_mac_to_u64(u8 *addr)
{
	u64 mac = 0;
	int i;

	for (i = 0; i < ETH_ALEN; i++) {
		mac <<= 8;
		mac |= addr[i];
	}
	return mac;
}

static inline void mlx4_u64_to_mac(u8 *addr, u64 mac)
{
	int i;

	for (i = ETH_ALEN; i > 0; i--) {
		addr[i - 1] = mac & 0xFF;
		mac >>= 8;
	}
}

#endif /* MLX4_DRIVER_H */