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
osm_lft_rcv_process(IN void * context,IN void * data)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 }
126