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 **********************************************************************/
60static 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 **********************************************************************/
93void 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}
129