xref: /freebsd/contrib/ofed/opensm/include/opensm/osm_sm_mad_ctrl.h (revision 02e9120893770924227138ba49df1edb3896112a)
1 /*
2  * Copyright (c) 2004-2009 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_sm_mad_ctrl_t.
39  *	This object represents a controller that receives the IBA NodeInfo
40  *	attribute from a node.
41  *	This object is part of the OpenSM family of objects.
42  */
43 
44 #ifndef _OSM_SM_MAD_CTRL_H_
45 #define _OSM_SM_MAD_CTRL_H_
46 
47 #include <complib/cl_passivelock.h>
48 #include <complib/cl_dispatcher.h>
49 #include <opensm/osm_base.h>
50 #include <opensm/osm_stats.h>
51 #include <opensm/osm_madw.h>
52 #include <opensm/osm_mad_pool.h>
53 #include <opensm/osm_subnet.h>
54 #include <opensm/osm_log.h>
55 #include <opensm/osm_vl15intf.h>
56 
57 #ifdef __cplusplus
58 #  define BEGIN_C_DECLS extern "C" {
59 #  define END_C_DECLS   }
60 #else				/* !__cplusplus */
61 #  define BEGIN_C_DECLS
62 #  define END_C_DECLS
63 #endif				/* __cplusplus */
64 
65 BEGIN_C_DECLS
66 /****h* OpenSM/SM MAD Controller
67 * NAME
68 *	SM MAD Controller
69 *
70 * DESCRIPTION
71 *	The SM MAD Controller object encapsulates
72 *	the information	needed to receive MADs from the transport layer.
73 *
74 *	The SM MAD Controller object is thread safe.
75 *
76 *	This object should be treated as opaque and should be
77 *	manipulated only through the provided functions.
78 *
79 * AUTHOR
80 *	Steve King, Intel
81 *
82 *********/
83 /****s* OpenSM: SM MAD Controller/osm_sm_mad_ctrl_t
84 * NAME
85 *	osm_sm_mad_ctrl_t
86 *
87 * DESCRIPTION
88 *	SM MAD Controller structure.
89 *
90 *	This object should be treated as opaque and should
91 *	be manipulated only through the provided functions.
92 *
93 * SYNOPSIS
94 */
95 typedef struct osm_sm_mad_ctrl {
96 	osm_log_t *p_log;
97 	osm_subn_t *p_subn;
98 	osm_mad_pool_t *p_mad_pool;
99 	osm_vl15_t *p_vl15;
100 	osm_vendor_t *p_vendor;
101 	osm_bind_handle_t h_bind;
102 	cl_plock_t *p_lock;
103 	cl_dispatcher_t *p_disp;
104 	cl_disp_reg_handle_t h_disp;
105 	osm_stats_t *p_stats;
106 } osm_sm_mad_ctrl_t;
107 /*
108 * FIELDS
109 *	p_log
110 *		Pointer to the log object.
111 *
112 *	p_subn
113 *		Pointer to the subnet object.
114 *
115 *	p_mad_pool
116 *		Pointer to the MAD pool.
117 *
118 *	p_vendor
119 *		Pointer to the vendor specific interfaces object.
120 *
121 *	h_bind
122 *		Bind handle returned by the transport layer.
123 *
124 *	p_lock
125 *		Pointer to the serializing lock.
126 *
127 *	p_disp
128 *		Pointer to the Dispatcher.
129 *
130 *	h_disp
131 *		Handle returned from dispatcher registration.
132 *
133 *	p_stats
134 *		Pointer to the OpenSM statistics block.
135 *
136 * SEE ALSO
137 *	SM MAD Controller object
138 *	SM MADr object
139 *********/
140 
141 /****f* OpenSM: SM MAD Controller/osm_sm_mad_ctrl_construct
142 * NAME
143 *	osm_sm_mad_ctrl_construct
144 *
145 * DESCRIPTION
146 *	This function constructs a SM MAD Controller object.
147 *
148 * SYNOPSIS
149 */
150 void osm_sm_mad_ctrl_construct(IN osm_sm_mad_ctrl_t * p_ctrl);
151 /*
152 * PARAMETERS
153 *	p_ctrl
154 *		[in] Pointer to a SM MAD Controller
155 *		object to construct.
156 *
157 * RETURN VALUE
158 *	This function does not return a value.
159 *
160 * NOTES
161 *	Allows calling osm_sm_mad_ctrl_init, and osm_sm_mad_ctrl_destroy.
162 *
163 *	Calling osm_sm_mad_ctrl_construct is a prerequisite to calling any other
164 *	method except osm_sm_mad_ctrl_init.
165 *
166 * SEE ALSO
167 *	SM MAD Controller object, osm_sm_mad_ctrl_init,
168 *	osm_sm_mad_ctrl_destroy
169 *********/
170 
171 /****f* OpenSM: SM MAD Controller/osm_sm_mad_ctrl_destroy
172 * NAME
173 *	osm_sm_mad_ctrl_destroy
174 *
175 * DESCRIPTION
176 *	The osm_sm_mad_ctrl_destroy function destroys the object, releasing
177 *	all resources.
178 *
179 * SYNOPSIS
180 */
181 void osm_sm_mad_ctrl_destroy(IN osm_sm_mad_ctrl_t * p_ctrl);
182 /*
183 * PARAMETERS
184 *	p_ctrl
185 *		[in] Pointer to the object to destroy.
186 *
187 * RETURN VALUE
188 *	This function does not return a value.
189 *
190 * NOTES
191 *	Performs any necessary cleanup of the specified
192 *	SM MAD Controller object.
193 *	Further operations should not be attempted on the destroyed object.
194 *	This function should only be called after a call to
195 *	osm_sm_mad_ctrl_construct or osm_sm_mad_ctrl_init.
196 *
197 * SEE ALSO
198 *	SM MAD Controller object, osm_sm_mad_ctrl_construct,
199 *	osm_sm_mad_ctrl_init
200 *********/
201 
202 /****f* OpenSM: SM MAD Controller/osm_sm_mad_ctrl_init
203 * NAME
204 *	osm_sm_mad_ctrl_init
205 *
206 * DESCRIPTION
207 *	The osm_sm_mad_ctrl_init function initializes a
208 *	SM MAD Controller object for use.
209 *
210 * SYNOPSIS
211 */
212 ib_api_status_t osm_sm_mad_ctrl_init(IN osm_sm_mad_ctrl_t * p_ctrl,
213 				     IN osm_subn_t * p_subn,
214 				     IN osm_mad_pool_t * p_mad_pool,
215 				     IN osm_vl15_t * p_vl15,
216 				     IN osm_vendor_t * p_vendor,
217 				     IN osm_log_t * p_log,
218 				     IN osm_stats_t * p_stats,
219 				     IN cl_plock_t * p_lock,
220 				     IN cl_dispatcher_t * p_disp);
221 /*
222 * PARAMETERS
223 *	p_ctrl
224 *		[in] Pointer to an osm_sm_mad_ctrl_t object to initialize.
225 *
226 *	p_mad_pool
227 *		[in] Pointer to the MAD pool.
228 *
229 *	p_vl15
230 *		[in] Pointer to the VL15 interface object.
231 *
232 *	p_vendor
233 *		[in] Pointer to the vendor specific interfaces object.
234 *
235 *	p_log
236 *		[in] Pointer to the log object.
237 *
238 *	p_stats
239 *		[in] Pointer to the OpenSM stastics block.
240 *
241 *	p_lock
242 *		[in] Pointer to the OpenSM serializing lock.
243 *
244 *	p_disp
245 *		[in] Pointer to the OpenSM central Dispatcher.
246 *
247 * RETURN VALUES
248 *	IB_SUCCESS if the SM MAD Controller object was initialized
249 *	successfully.
250 *
251 * NOTES
252 *	Allows calling other SM MAD Controller methods.
253 *
254 * SEE ALSO
255 *	SM MAD Controller object, osm_sm_mad_ctrl_construct,
256 *	osm_sm_mad_ctrl_destroy
257 *********/
258 
259 /****f* OpenSM: SM/osm_sm_mad_ctrl_bind
260 * NAME
261 *	osm_sm_mad_ctrl_bind
262 *
263 * DESCRIPTION
264 *	Binds the SM MAD Controller object to a port guid.
265 *
266 * SYNOPSIS
267 */
268 ib_api_status_t osm_sm_mad_ctrl_bind(IN osm_sm_mad_ctrl_t * p_ctrl,
269 				     IN ib_net64_t port_guid);
270 /*
271 * PARAMETERS
272 *	p_ctrl
273 *		[in] Pointer to an osm_sm_mad_ctrl_t object to initialize.
274 *
275 *	port_guid
276 *		[in] Local port GUID with which to bind.
277 *
278 *
279 * RETURN VALUES
280 *	None
281 *
282 * NOTES
283 *	A given SM MAD Controller object can only be bound to one
284 *	port at a time.
285 *
286 * SEE ALSO
287 *********/
288 
289 /****f* OpenSM: SM/osm_sm_mad_ctrl_get_bind_handle
290 * NAME
291 *	osm_sm_mad_ctrl_get_bind_handle
292 *
293 * DESCRIPTION
294 *	Returns the bind handle.
295 *
296 * SYNOPSIS
297 */
298 static inline osm_bind_handle_t
299 osm_sm_mad_ctrl_get_bind_handle(IN const osm_sm_mad_ctrl_t * p_ctrl)
300 {
301 	return p_ctrl->h_bind;
302 }
303 
304 /*
305 * PARAMETERS
306 *	p_ctrl
307 *		[in] Pointer to an osm_sm_mad_ctrl_t object.
308 *
309 * RETURN VALUES
310 *	Returns the bind handle, which may be OSM_BIND_INVALID_HANDLE
311 *	if no port has been bound.
312 *
313 * NOTES
314 *	A given SM MAD Controller object can only be bound to one
315 *	port at a time.
316 *
317 * SEE ALSO
318 *********/
319 
320 END_C_DECLS
321 #endif				/* _OSM_SM_MAD_CTRL_H_ */
322