text: /*
   * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
   * Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved.
   * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
   * Copyright (c) 2009 Sun Microsystems, Inc. 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_lft_rcv_t.
   * This object represents the Linear Forwarding Table 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 <complib/cl_debug.h>
  #include <opensm/osm_file_ids.h>
  #define FILE_ID OSM_FILE_LIN_FWD_RCV_C
  #include <opensm/osm_switch.h>
  #include <opensm/osm_sm.h>
  #include <opensm/osm_event_plugin.h>
  #include <opensm/osm_opensm.h>
  
  void osm_lft_rcv_process(IN void *context, IN void *data)
  {
  	osm_sm_t *sm = context;
  	osm_madw_t *p_madw = data;
  	ib_smp_t *p_smp;
  	uint32_t block_num;
  	osm_switch_t *p_sw;
  	osm_lft_context_t *p_lft_context;
  	uint8_t *p_block;
  	ib_net64_t node_guid;
  	osm_epi_lft_change_event_t lft_change;
  	ib_api_status_t status;
  
  	CL_ASSERT(sm);
  
  	OSM_LOG_ENTER(sm->p_log);
  
  	CL_ASSERT(p_madw);
  
  	p_smp = osm_madw_get_smp_ptr(p_madw);
  	p_block = ib_smp_get_payload_ptr(p_smp);
  	block_num = cl_ntoh32(p_smp->attr_mod);
  
  	/*
  	   Acquire the switch object for this switch.
  	 */
  	p_lft_context = osm_madw_get_lft_context_ptr(p_madw);
  	node_guid = p_lft_context->node_guid;
  
  	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;
  	}
  
  	CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
  	p_sw = osm_get_switch_by_guid(sm->p_subn, node_guid);
  
  	if (!p_sw) {
  		OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 0401: "
  			"LFT received for nonexistent node "
  			"0x%" PRIx64 "\n", cl_ntoh64(node_guid));
  	} else {
  		status = osm_switch_set_lft_block(p_sw, p_block, block_num);
  		if (status == IB_SUCCESS) {
  			if (sm->p_subn->first_time_master_sweep == FALSE) {
  				lft_change.p_sw = p_sw;
  				lft_change.flags = LFT_CHANGED_BLOCK;
  				lft_change.lft_top = 0;
  				lft_change.block_num = block_num;
  				osm_opensm_report_event(sm->p_subn->p_osm,
  							OSM_EVENT_ID_LFT_CHANGE,
  							&lft_change);
  			}
  		} else {
  			OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 0402: "
  				"Setting forwarding table block %u failed (%s)"
  				", Switch 0x%" PRIx64 " %s\n", block_num,
  				ib_get_err_str(status), cl_ntoh64(node_guid),
  				p_sw->p_node->print_desc);
  		}
  	}
  
  	CL_PLOCK_RELEASE(sm->p_lock);
  Exit:
  	OSM_LOG_EXIT(sm->p_log);
  }
  