contrib/ofed/opensm/opensm/osm_lin_fwd_rcv.c

   1 /*
   2  * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
   3  * Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved.
   4  * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
   5  * Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
   6  * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
   7  *
   8  * This software is available to you under a choice of one of two
   9  * licenses.  You may choose to be licensed under the terms of the GNU
  10  * General Public License (GPL) Version 2, available from the file
  11  * COPYING in the main directory of this source tree, or the
  12  * OpenIB.org BSD license below:
  13  *
  14  *     Redistribution and use in source and binary forms, with or
  15  *     without modification, are permitted provided that the following
  16  *     conditions are met:
  17  *
  18  *      - Redistributions of source code must retain the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer.
  21  *
  22  *      - Redistributions in binary form must reproduce the above
  23  *        copyright notice, this list of conditions and the following
  24  *        disclaimer in the documentation and/or other materials
  25  *        provided with the distribution.
  26  *
  27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  31  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  32  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  33  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  34  * SOFTWARE.
  35  *
  36  */
  37
  38 /*
  39  * Abstract:
  40  *    Implementation of osm_lft_rcv_t.
  41  * This object represents the Linear Forwarding Table Receiver object.
  42  * This object is part of the opensm family of objects.
  43  */
  44
  45 #if HAVE_CONFIG_H
  46 #  include <config.h>
  47 #endif                          /* HAVE_CONFIG_H */
  48
  49 #include <string.h>
  50 #include <complib/cl_debug.h>
  51 #include <opensm/osm_file_ids.h>
  52 #define FILE_ID OSM_FILE_LIN_FWD_RCV_C
  53 #include <opensm/osm_switch.h>
  54 #include <opensm/osm_sm.h>
  55 #include <opensm/osm_event_plugin.h>
  56 #include <opensm/osm_opensm.h>
  57
  58 void osm_lft_rcv_process(IN void *context, IN void *data)
  59 {
  60         osm_sm_t *sm = context;
  61         osm_madw_t *p_madw = data;
  62         ib_smp_t *p_smp;
  63         uint32_t block_num;
  64         osm_switch_t *p_sw;
  65         osm_lft_context_t *p_lft_context;
  66         uint8_t *p_block;
  67         ib_net64_t node_guid;
  68         osm_epi_lft_change_event_t lft_change;
  69         ib_api_status_t status;
  70
  71         CL_ASSERT(sm);
  72
  73         OSM_LOG_ENTER(sm->p_log);
  74
  75         CL_ASSERT(p_madw);
  76
  77         p_smp = osm_madw_get_smp_ptr(p_madw);
  78         p_block = ib_smp_get_payload_ptr(p_smp);
  79         block_num = cl_ntoh32(p_smp->attr_mod);
  80
  81         /*
  82            Acquire the switch object for this switch.
  83          */
  84         p_lft_context = osm_madw_get_lft_context_ptr(p_madw);
  85         node_guid = p_lft_context->node_guid;
  86
  87         if (ib_smp_get_status(p_smp)) {
  88                 OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
  89                         "MAD status 0x%x received\n",
  90                         cl_ntoh16(ib_smp_get_status(p_smp)));
  91                 goto Exit;
  92         }
  93
  94         CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
  95         p_sw = osm_get_switch_by_guid(sm->p_subn, node_guid);
  96
  97         if (!p_sw) {
  98                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 0401: "
  99                         "LFT received for nonexistent node "
 100                         "0x%" PRIx64 "\n", cl_ntoh64(node_guid));
 101         } else {
 102                 status = osm_switch_set_lft_block(p_sw, p_block, block_num);
 103                 if (status == IB_SUCCESS) {
 104                         if (sm->p_subn->first_time_master_sweep == FALSE) {
 105                                 lft_change.p_sw = p_sw;
 106                                 lft_change.flags = LFT_CHANGED_BLOCK;
 107                                 lft_change.lft_top = 0;
 108                                 lft_change.block_num = block_num;
 109                                 osm_opensm_report_event(sm->p_subn->p_osm,
 110                                                         OSM_EVENT_ID_LFT_CHANGE,
 111                                                         &lft_change);
 112                         }
 113                 } else {
 114                         OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 0402: "
 115                                 "Setting forwarding table block %u failed (%s)"
 116                                 ", Switch 0x%" PRIx64 " %s\n", block_num,
 117                                 ib_get_err_str(status), cl_ntoh64(node_guid),
 118                                 p_sw->p_node->print_desc);
 119                 }
 120         }
 121
 122         CL_PLOCK_RELEASE(sm->p_lock);
 123 Exit:
 124         OSM_LOG_EXIT(sm->p_log);
 125 }