source: mainline/uspace/srv/net/nil/eth/eth.h@ f63a591d

/*
 * Copyright (c) 2009 Lukas Mejdrech
 * All rights reserved.
 *
 * 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 name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup eth
 *  @{
 */

/** @file
 *  Ethernet module.
 */

#ifndef __NET_ETH_H__
#define __NET_ETH_H__

#include <fibril_synch.h>
#include <ipc/services.h>

#include <net/device.h>
#include <adt/measured_strings.h>

/** Type definition of the Ethernet global data.
 *  @see eth_globals
 */
typedef struct eth_globals      eth_globals_t;

/** Type definition of the Ethernet device specific data.
 *  @see eth_device
 */
typedef struct eth_device       eth_device_t;

/** Type definition of the Ethernet device specific data pointer.
 *  @see eth_device
 */
typedef eth_device_t *          eth_device_ref;

/** Type definition of the Ethernet protocol specific data.
 *  @see eth_proto
 */
typedef struct eth_proto        eth_proto_t;

/** Type definition of the Ethernet protocol specific data pointer.
 *  @see eth_proto
 */
typedef eth_proto_t *           eth_proto_ref;

/** Ethernet device map.
 *  Maps devices to the Ethernet device specific data.
 *  @see device.h
 */
DEVICE_MAP_DECLARE(eth_devices, eth_device_t)

/** Ethernet protocol map.
 *  Maps protocol identifiers to the Ethernet protocol specific data.
 *  @see int_map.h
 */
INT_MAP_DECLARE(eth_protos, eth_proto_t)

/** Ethernet device specific data.
 */
struct  eth_device{
        /** Device identifier.
         */
        device_id_t device_id;
        /** Device driver service.
         */
        services_t service;
        /** Driver phone.
         */
        int phone;
        /** Maximal transmission unit.
         */
        size_t mtu;
        /** Various device flags.
         *  @see ETH_DUMMY
         *  @see ETH_MODE_MASK
         */
        int flags;
        /** Actual device hardware address.
         */
        measured_string_ref addr;
        /** Actual device hardware address data.
         */
        char * addr_data;
};

/** Ethernet protocol specific data.
 */
struct eth_proto{
        /** Protocol service.
         */
        services_t service;
        /** Protocol identifier.
         */
        int protocol;
        /** Protocol module phone.
         */
        int phone;
};

/** Ethernet global data.
 */
struct  eth_globals{
        /** Networking module phone.
         */
        int net_phone;
        /** Safety lock for devices.
         */
        fibril_rwlock_t devices_lock;
        /** All known Ethernet devices.
         */
        eth_devices_t devices;
        /** Safety lock for protocols.
         */
        fibril_rwlock_t protos_lock;
        /** Protocol map.
         *  Service phone map for each protocol.
         */
        eth_protos_t protos;
        /** Broadcast device hardware address.
         */
        measured_string_ref broadcast_addr;
};

#endif

/** @}
 */