osm_router.h revision 219820
1/*
2 * Copyright (c) 2004-2007 Voltaire, Inc. All rights reserved.
3 * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved.
4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses.  You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 *     Redistribution and use in source and binary forms, with or
13 *     without modification, are permitted provided that the following
14 *     conditions are met:
15 *
16 *      - Redistributions of source code must retain the above
17 *        copyright notice, this list of conditions and the following
18 *        disclaimer.
19 *
20 *      - Redistributions in binary form must reproduce the above
21 *        copyright notice, this list of conditions and the following
22 *        disclaimer in the documentation and/or other materials
23 *        provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 *
34 */
35
36/*
37 * Abstract:
38 * 	Declaration of osm_router_t.
39 *	This object represents an IBA router.
40 *	This object is part of the OpenSM family of objects.
41 */
42
43#ifndef _OSM_ROUTER_H_
44#define _OSM_ROUTER_H_
45
46#include <iba/ib_types.h>
47#include <opensm/osm_base.h>
48#include <opensm/osm_madw.h>
49#include <opensm/osm_node.h>
50#include <opensm/osm_port.h>
51#include <opensm/osm_mcast_tbl.h>
52#include <opensm/osm_port_profile.h>
53
54#ifdef __cplusplus
55#  define BEGIN_C_DECLS extern "C" {
56#  define END_C_DECLS   }
57#else				/* !__cplusplus */
58#  define BEGIN_C_DECLS
59#  define END_C_DECLS
60#endif				/* __cplusplus */
61
62BEGIN_C_DECLS
63/****h* OpenSM/Router
64* NAME
65*	Router
66*
67* DESCRIPTION
68*	The Router object encapsulates the information needed by the
69*	OpenSM to manage routers.  The OpenSM allocates one router object
70*	per router in the IBA subnet.
71*
72*	The Router object is not thread safe, thus callers must provide
73*	serialization.
74*
75*	This object should be treated as opaque and should be
76*	manipulated only through the provided functions.
77*
78* AUTHOR
79*	Hal Rosenstock, Voltaire
80*
81*********/
82/****s* OpenSM: Router/osm_router_t
83* NAME
84*	osm_router_t
85*
86* DESCRIPTION
87*	Router structure.
88*
89*	This object should be treated as opaque and should
90*	be manipulated only through the provided functions.
91*
92* SYNOPSIS
93*/
94typedef struct osm_router {
95	cl_map_item_t map_item;
96	osm_port_t *p_port;
97} osm_router_t;
98/*
99* FIELDS
100*	map_item
101*		Linkage structure for cl_qmap.  MUST BE FIRST MEMBER!
102*
103*	p_port
104*		Pointer to the Port object for this router.
105*
106* SEE ALSO
107*	Router object
108*********/
109
110/****f* OpenSM: Router/osm_router_delete
111* NAME
112*	osm_router_delete
113*
114* DESCRIPTION
115*	Destroys and deallocates the object.
116*
117* SYNOPSIS
118*/
119void osm_router_delete(IN OUT osm_router_t ** const pp_rtr);
120/*
121* PARAMETERS
122*	p_rtr
123*		[in] Pointer to the object to destroy.
124*
125* RETURN VALUE
126*	None.
127*
128* NOTES
129*
130* SEE ALSO
131*	Router object, osm_router_new
132*********/
133
134/****f* OpenSM: Router/osm_router_new
135* NAME
136*	osm_router_new
137*
138* DESCRIPTION
139*	The osm_router_new function initializes a Router object for use.
140*
141* SYNOPSIS
142*/
143osm_router_t *osm_router_new(IN osm_port_t * const p_port);
144/*
145* PARAMETERS
146*	p_node
147*		[in] Pointer to the node object of this router
148*
149* RETURN VALUES
150*	Pointer to the new initialized router object.
151*
152* NOTES
153*
154* SEE ALSO
155*	Router object, osm_router_new
156*********/
157
158/****f* OpenSM: Router/osm_router_get_port_ptr
159* NAME
160*	osm_router_get_port_ptr
161*
162* DESCRIPTION
163*	Returns a pointer to the Port object for this router.
164*
165* SYNOPSIS
166*/
167static inline osm_port_t *osm_router_get_port_ptr(IN const osm_router_t *
168						  const p_rtr)
169{
170	return (p_rtr->p_port);
171}
172
173/*
174* PARAMETERS
175*	p_rtr
176*		[in] Pointer to an osm_router_t object.
177*
178* RETURN VALUES
179*	Returns a pointer to the Port object for this router.
180*
181* NOTES
182*
183* SEE ALSO
184*	Router object
185*********/
186
187/****f* OpenSM: Router/osm_router_get_node_ptr
188* NAME
189*	osm_router_get_node_ptr
190*
191* DESCRIPTION
192*	Returns a pointer to the Node object for this router.
193*
194* SYNOPSIS
195*/
196static inline osm_node_t *osm_router_get_node_ptr(IN const osm_router_t *
197						  const p_rtr)
198{
199	return (p_rtr->p_port->p_node);
200}
201
202/*
203* PARAMETERS
204*	p_rtr
205*		[in] Pointer to an osm_router_t object.
206*
207* RETURN VALUES
208*	Returns a pointer to the Node object for this router.
209*
210* NOTES
211*
212* SEE ALSO
213*	Router object
214*********/
215
216END_C_DECLS
217#endif				/* _OSM_ROUTER_H_ */
218