xref: /freebsd/contrib/ofed/opensm/opensm/osm_mtree.c (revision 148a8da8)
1 /*
2  * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
3  * Copyright (c) 2002-2006 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  *    Implementation of osm_mtree_node_t.
39  * This file implements the Multicast Tree object.
40  */
41 
42 #if HAVE_CONFIG_H
43 #  include <config.h>
44 #endif				/* HAVE_CONFIG_H */
45 
46 #include <stdlib.h>
47 #include <opensm/osm_file_ids.h>
48 #define FILE_ID OSM_FILE_MTREE_C
49 #include <complib/cl_debug.h>
50 #include <opensm/osm_mtree.h>
51 
52 osm_mtree_node_t *osm_mtree_node_new(IN const osm_switch_t * p_sw)
53 {
54 	osm_mtree_node_t *p_mtn;
55 	uint32_t i;
56 
57 	p_mtn = malloc(sizeof(osm_mtree_node_t) +
58 		       sizeof(void *) * (p_sw->num_ports - 1));
59 	if (!p_mtn)
60 		return NULL;
61 
62 	memset(p_mtn, 0, sizeof(*p_mtn));
63 	p_mtn->p_sw = p_sw;
64 	p_mtn->max_children = p_sw->num_ports;
65 	for (i = 0; i < p_mtn->max_children; i++)
66 		p_mtn->child_array[i] = NULL;
67 
68 	return p_mtn;
69 }
70 
71 void osm_mtree_destroy(IN osm_mtree_node_t * p_mtn)
72 {
73 	uint8_t i;
74 
75 	if (p_mtn == NULL)
76 		return;
77 
78 	for (i = 0; i < p_mtn->max_children; i++)
79 		if ((p_mtn->child_array[i] != NULL) &&
80 		    (p_mtn->child_array[i] != OSM_MTREE_LEAF))
81 			osm_mtree_destroy(p_mtn->child_array[i]);
82 
83 	free(p_mtn);
84 }
85 
86 #if 0
87 static void mtree_dump(IN osm_mtree_node_t * p_mtn)
88 {
89 	uint32_t i;
90 
91 	if (p_mtn == NULL)
92 		return;
93 
94 	printf("GUID:0x%016" PRIx64 " max_children:%u\n",
95 	       cl_ntoh64(p_mtn->p_sw->p_node->node_info.node_guid),
96 	       p_mtn->max_children);
97 	if (p_mtn->child_array != NULL) {
98 		for (i = 0; i < p_mtn->max_children; i++) {
99 			printf("i=%d\n", i);
100 			if ((p_mtn->child_array[i] != NULL)
101 			    && (p_mtn->child_array[i] != OSM_MTREE_LEAF))
102 				mtree_dump(p_mtn->child_array[i]);
103 		}
104 	}
105 }
106 #endif
107