contrib/ofed/management/opensm/opensm/osm_node_desc_rcv.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_nd_rcv_t.
  39  * This object represents the NodeDescription Receiver object.
  40  * This object is part of the opensm family of objects.
  41  */
  42
  43 #if HAVE_CONFIG_H
  44 #  include <config.h>
  45 #endif                          /* HAVE_CONFIG_H */
  46
  47 #include <string.h>
  48 #include <iba/ib_types.h>
  49 #include <complib/cl_qmap.h>
  50 #include <complib/cl_passivelock.h>
  51 #include <complib/cl_debug.h>
  52 #include <opensm/osm_madw.h>
  53 #include <opensm/osm_log.h>
  54 #include <opensm/osm_node.h>
  55 #include <opensm/osm_opensm.h>
  56 #include <opensm/osm_subnet.h>
  57
  58 /**********************************************************************
  59  **********************************************************************/
  60 static void
  61 __osm_nd_rcv_process_nd(IN osm_sm_t * sm,
  62                         IN osm_node_t * const p_node,
  63                         IN const ib_node_desc_t * const p_nd)
  64 {
  65         char *tmp_desc;
  66         char print_desc[IB_NODE_DESCRIPTION_SIZE + 1];
  67
  68         OSM_LOG_ENTER(sm->p_log);
  69
  70         memcpy(&p_node->node_desc.description, p_nd, sizeof(*p_nd));
  71
  72         /* also set up a printable version */
  73         memcpy(print_desc, p_nd, sizeof(*p_nd));
  74         print_desc[IB_NODE_DESCRIPTION_SIZE] = '\0';
  75         tmp_desc = remap_node_name(sm->p_subn->p_osm->node_name_map,
  76                         cl_ntoh64(osm_node_get_node_guid(p_node)),
  77                         print_desc);
  78
  79         /* make a copy for this node to "own" */
  80         if (p_node->print_desc)
  81                 free(p_node->print_desc);
  82         p_node->print_desc = tmp_desc;
  83
  84         OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
  85                 "Node 0x%" PRIx64 "\n\t\t\t\tDescription = %s\n",
  86                 cl_ntoh64(osm_node_get_node_guid(p_node)), p_node->print_desc);
  87
  88         OSM_LOG_EXIT(sm->p_log);
  89 }
  90
  91 /**********************************************************************
  92  **********************************************************************/
  93 void osm_nd_rcv_process(IN void *context, IN void *data)
  94 {
  95         osm_sm_t *sm = context;
  96         osm_madw_t *p_madw = data;
  97         ib_node_desc_t *p_nd;
  98         ib_smp_t *p_smp;
  99         osm_node_t *p_node;
 100         ib_net64_t node_guid;
 101
 102         CL_ASSERT(sm);
 103
 104         OSM_LOG_ENTER(sm->p_log);
 105
 106         CL_ASSERT(p_madw);
 107
 108         p_smp = osm_madw_get_smp_ptr(p_madw);
 109         p_nd = (ib_node_desc_t *) ib_smp_get_payload_ptr(p_smp);
 110
 111         /*
 112            Acquire the node object and add the node description.
 113          */
 114
 115         node_guid = osm_madw_get_nd_context_ptr(p_madw)->node_guid;
 116         CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
 117         p_node = osm_get_node_by_guid(sm->p_subn, node_guid);
 118         if (!p_node) {
 119                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 0B01: "
 120                         "NodeDescription received for nonexistent node "
 121                         "0x%" PRIx64 "\n", cl_ntoh64(node_guid));
 122         } else {
 123                 __osm_nd_rcv_process_nd(sm, p_node, p_nd);
 124         }
 125
 126         CL_PLOCK_RELEASE(sm->p_lock);
 127         OSM_LOG_EXIT(sm->p_log);
 128 }