/*

 * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.

 * Copyright (c) 2002-2007 Mellanox Technologies LTD. All rights reserved.

 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.

 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.

 *

 * This software is available to you under a choice of one of two

 * licenses.  You may choose to be licensed under the terms of the GNU

 * General Public License (GPL) Version 2, available from the file

 * COPYING in the main directory of this source tree, or the

 * OpenIB.org BSD license below:

 *

 *     Redistribution and use in source and binary forms, with or

 *     without modification, are permitted provided that the following

 *     conditions are met:

 *

 *      - Redistributions of source code must retain the above

 *        copyright notice, this list of conditions and the following

 *        disclaimer.

 *

 *      - Redistributions in binary form must reproduce the above

 *        copyright notice, this list of conditions and the following

 *        disclaimer in the documentation and/or other materials

 *        provided with the distribution.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 *

 */

/*

 * Abstract:

 *    Implementation of osm_nd_rcv_t.

 * This object represents the NodeDescription Receiver object.

 * This object is part of the opensm family of objects.

 */

#if HAVE_CONFIG_H

#  include <config.h>

#endif				/* HAVE_CONFIG_H */

#include <string.h>

#include <iba/ib_types.h>

#include <complib/cl_qmap.h>

#include <complib/cl_passivelock.h>

#include <complib/cl_debug.h>

#include <opensm/osm_file_ids.h>

#define FILE_ID OSM_FILE_NODE_DESC_RCV_C

#include <opensm/osm_madw.h>

#include <opensm/osm_log.h>

#include <opensm/osm_node.h>

#include <opensm/osm_opensm.h>

#include <opensm/osm_subnet.h>

static void nd_rcv_process_nd(IN osm_sm_t * sm, IN osm_node_t * p_node,

			      IN const ib_node_desc_t * p_nd)

{

	char *tmp_desc;

	char print_desc[IB_NODE_DESCRIPTION_SIZE + 1];

	OSM_LOG_ENTER(sm->p_log);

	memcpy(&p_node->node_desc.description, p_nd, sizeof(*p_nd));

	/* also set up a printable version */

	memcpy(print_desc, p_nd, sizeof(*p_nd));

	print_desc[IB_NODE_DESCRIPTION_SIZE] = '\0';

	tmp_desc = remap_node_name(sm->p_subn->p_osm->node_name_map,

				   cl_ntoh64(osm_node_get_node_guid(p_node)),

				   print_desc);

	/* make a copy for this node to "own" */

	if (p_node->print_desc)

		free(p_node->print_desc);

	p_node->print_desc = tmp_desc;

#ifdef ENABLE_OSM_PERF_MGR

	/* update the perfmgr entry if available */

	osm_perfmgr_update_nodename(&sm->p_subn->p_osm->perfmgr,

				cl_ntoh64(osm_node_get_node_guid(p_node)),

				p_node->print_desc);

#endif				/* ENABLE_OSM_PERF_MGR */

	OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,

		"Node 0x%" PRIx64 ", Description = %s\n",

		cl_ntoh64(osm_node_get_node_guid(p_node)), p_node->print_desc);

	OSM_LOG_EXIT(sm->p_log);

}

void osm_nd_rcv_process(IN void *context, IN void *data)

{

	osm_sm_t *sm = context;

	osm_madw_t *p_madw = data;

	ib_node_desc_t *p_nd;

	ib_smp_t *p_smp;

	osm_node_t *p_node;

	ib_net64_t node_guid;

	CL_ASSERT(sm);

	OSM_LOG_ENTER(sm->p_log);

	CL_ASSERT(p_madw);

	p_smp = osm_madw_get_smp_ptr(p_madw);

	if (ib_smp_get_status(p_smp)) {

		OSM_LOG(sm->p_log, OSM_LOG_DEBUG,

			"MAD status 0x%x received\n",

			cl_ntoh16(ib_smp_get_status(p_smp)));

		goto Exit;

	}

	p_nd = ib_smp_get_payload_ptr(p_smp);

	/* Acquire the node object and add the node description. */

	node_guid = osm_madw_get_nd_context_ptr(p_madw)->node_guid;

	CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);

	p_node = osm_get_node_by_guid(sm->p_subn, node_guid);

	if (!p_node)

		OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 0B01: "

			"NodeDescription received for nonexistent node "

			"0x%" PRIx64 "\n", cl_ntoh64(node_guid));

	else

		nd_rcv_process_nd(sm, p_node, p_nd);

	CL_PLOCK_RELEASE(sm->p_lock);

Exit:

	OSM_LOG_EXIT(sm->p_log);

}