xref: /freebsd-11-stable/contrib/ofed/opensm/include/opensm/osm_router.h

/*
 * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
 * Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved.
 * Copyright (c) 1996-2003 Intel Corporation. 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.
 *
 */

/*
 * Abstract:
 * 	Declaration of osm_router_t.
 *	This object represents an IBA router.
 *	This object is part of the OpenSM family of objects.
 */

#ifndef _OSM_ROUTER_H_
#define _OSM_ROUTER_H_

#include <iba/ib_types.h>
#include <opensm/osm_base.h>
#include <opensm/osm_madw.h>
#include <opensm/osm_node.h>
#include <opensm/osm_port.h>
#include <opensm/osm_mcast_tbl.h>
#include <opensm/osm_port_profile.h>

#ifdef __cplusplus
#  define BEGIN_C_DECLS extern "C" {
#  define END_C_DECLS   }
#else				/* !__cplusplus */
#  define BEGIN_C_DECLS
#  define END_C_DECLS
#endif				/* __cplusplus */

BEGIN_C_DECLS
/****h* OpenSM/Router
* NAME
*	Router
*
* DESCRIPTION
*	The Router object encapsulates the information needed by the
*	OpenSM to manage routers.  The OpenSM allocates one router object
*	per router in the IBA subnet.
*
*	The Router object is not thread safe, thus callers must provide
*	serialization.
*
*	This object should be treated as opaque and should be
*	manipulated only through the provided functions.
*
* AUTHOR
*	Hal Rosenstock, Voltaire
*
*********/
/****s* OpenSM: Router/osm_router_t
* NAME
*	osm_router_t
*
* DESCRIPTION
*	Router structure.
*
*	This object should be treated as opaque and should
*	be manipulated only through the provided functions.
*
* SYNOPSIS
*/
typedef struct osm_router {
	cl_map_item_t map_item;
	osm_port_t *p_port;
} osm_router_t;
/*
* FIELDS
*	map_item
*		Linkage structure for cl_qmap.  MUST BE FIRST MEMBER!
*
*	p_port
*		Pointer to the Port object for this router.
*
* SEE ALSO
*	Router object
*********/

/****f* OpenSM: Router/osm_router_delete
* NAME
*	osm_router_delete
*
* DESCRIPTION
*	Destroys and deallocates the object.
*
* SYNOPSIS
*/
void osm_router_delete(IN OUT osm_router_t ** pp_rtr);
/*
* PARAMETERS
*	p_rtr
*		[in] Pointer to the object to destroy.
*
* RETURN VALUE
*	None.
*
* NOTES
*
* SEE ALSO
*	Router object, osm_router_new
*********/

/****f* OpenSM: Router/osm_router_new
* NAME
*	osm_router_new
*
* DESCRIPTION
*	The osm_router_new function initializes a Router object for use.
*
* SYNOPSIS
*/
osm_router_t *osm_router_new(IN osm_port_t * p_port);
/*
* PARAMETERS
*	p_node
*		[in] Pointer to the node object of this router
*
* RETURN VALUES
*	Pointer to the new initialized router object.
*
* NOTES
*
* SEE ALSO
*	Router object, osm_router_new
*********/

/****f* OpenSM: Router/osm_router_get_port_ptr
* NAME
*	osm_router_get_port_ptr
*
* DESCRIPTION
*	Returns a pointer to the Port object for this router.
*
* SYNOPSIS
*/
static inline osm_port_t *osm_router_get_port_ptr(IN const osm_router_t * p_rtr)
{
	return p_rtr->p_port;
}

/*
* PARAMETERS
*	p_rtr
*		[in] Pointer to an osm_router_t object.
*
* RETURN VALUES
*	Returns a pointer to the Port object for this router.
*
* NOTES
*
* SEE ALSO
*	Router object
*********/

/****f* OpenSM: Router/osm_router_get_node_ptr
* NAME
*	osm_router_get_node_ptr
*
* DESCRIPTION
*	Returns a pointer to the Node object for this router.
*
* SYNOPSIS
*/
static inline osm_node_t *osm_router_get_node_ptr(IN const osm_router_t * p_rtr)
{
	return p_rtr->p_port->p_node;
}

/*
* PARAMETERS
*	p_rtr
*		[in] Pointer to an osm_router_t object.
*
* RETURN VALUES
*	Returns a pointer to the Node object for this router.
*
* NOTES
*
* SEE ALSO
*	Router object
*********/

END_C_DECLS
#endif				/* _OSM_ROUTER_H_ */