contrib/ofed/management/opensm/opensm/osm_mtree.c

   1 /*
   2  * Copyright (c) 2004-2008 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  *    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 <complib/cl_debug.h>
  48 #include <opensm/osm_mtree.h>
  49
  50 /**********************************************************************
  51  **********************************************************************/
  52 static void
  53 osm_mtree_node_init(IN osm_mtree_node_t * const p_mtn,
  54                     IN const osm_switch_t * const p_sw)
  55 {
  56         uint32_t i;
  57
  58         CL_ASSERT(p_mtn);
  59         CL_ASSERT(p_sw);
  60
  61         memset(p_mtn, 0, sizeof(*p_mtn));
  62
  63         p_mtn->p_sw = (osm_switch_t *) p_sw;
  64         p_mtn->max_children = p_sw->num_ports;
  65
  66         for (i = 0; i < p_mtn->max_children; i++)
  67                 p_mtn->child_array[i] = NULL;
  68 }
  69
  70 /**********************************************************************
  71  **********************************************************************/
  72 osm_mtree_node_t *osm_mtree_node_new(IN const osm_switch_t * const p_sw)
  73 {
  74         osm_mtree_node_t *p_mtn;
  75
  76         p_mtn = malloc(sizeof(osm_mtree_node_t) +
  77                        sizeof(void *) * (p_sw->num_ports - 1));
  78
  79         if (p_mtn != NULL)
  80                 osm_mtree_node_init(p_mtn, p_sw);
  81
  82         return (p_mtn);
  83 }
  84
  85 /**********************************************************************
  86  **********************************************************************/
  87 void osm_mtree_destroy(IN osm_mtree_node_t * p_mtn)
  88 {
  89         uint32_t i;
  90
  91         if (p_mtn == NULL)
  92                 return;
  93
  94         if (p_mtn->child_array != NULL)
  95                 for (i = 0; i < p_mtn->max_children; i++)
  96                         if ((p_mtn->child_array[i] != NULL) &&
  97                             (p_mtn->child_array[i] != OSM_MTREE_LEAF))
  98                                 osm_mtree_destroy(p_mtn->child_array[i]);
  99
 100         free(p_mtn);
 101 }
 102
 103 /**********************************************************************
 104  **********************************************************************/
 105 #if 0
 106 static void __osm_mtree_dump(IN osm_mtree_node_t * p_mtn)
 107 {
 108         uint32_t i;
 109
 110         if (p_mtn == NULL)
 111                 return;
 112
 113         printf("GUID:0x%016" PRIx64 " max_children:%u\n",
 114                cl_ntoh64(p_mtn->p_sw->p_node->node_info.node_guid),
 115                p_mtn->max_children);
 116         if (p_mtn->child_array != NULL) {
 117                 for (i = 0; i < p_mtn->max_children; i++) {
 118                         printf("i=%d\n", i);
 119                         if ((p_mtn->child_array[i] != NULL)
 120                             && (p_mtn->child_array[i] != OSM_MTREE_LEAF))
 121                                 __osm_mtree_dump(p_mtn->child_array[i]);
 122                 }
 123         }
 124 }
 125 #endif