1 /*
2  * Copyright (c) 2006-2009 Voltaire, Inc. All rights reserved.
3  * Copyright (c) 2002-2012 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_guid_mgr_t.
39  * This object implements the GUID manager 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_debug.h>
50 #include <complib/cl_qlist.h>
51 #include <opensm/osm_file_ids.h>
52 #define FILE_ID OSM_FILE_GUID_MGR_C
53 #include <opensm/osm_port.h>
54 #include <opensm/osm_node.h>
55 #include <opensm/osm_guid.h>
56 #include <opensm/osm_opensm.h>
57 
58 static void guidinfo_set(IN osm_sa_t *sa, IN osm_port_t *p_port,
59 			 IN uint8_t block_num)
60 {
61 	uint8_t payload[IB_SMP_DATA_SIZE];
62 	osm_madw_context_t context;
63 	ib_api_status_t status;
64 
65 	memcpy(payload,
66 	       &((*p_port->p_physp->p_guids)[block_num * GUID_TABLE_MAX_ENTRIES]),
67 	       sizeof(ib_guid_info_t));
68 
69 	context.gi_context.node_guid = osm_node_get_node_guid(p_port->p_node);
70 	context.gi_context.port_guid = osm_physp_get_port_guid(p_port->p_physp);
71 	context.gi_context.set_method = TRUE;
72 	context.gi_context.port_num = osm_physp_get_port_num(p_port->p_physp);
73 
74 	status = osm_req_set(sa->sm, osm_physp_get_dr_path_ptr(p_port->p_physp),
75 			     payload, sizeof(payload), IB_MAD_ATTR_GUID_INFO,
76 			     cl_hton32((uint32_t)block_num), FALSE,
77 			     ib_port_info_get_m_key(&p_port->p_physp->port_info),
78 					            CL_DISP_MSGID_NONE, &context);
79 	if (status != IB_SUCCESS)
80 		OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 5109: "
81 			"Failure initiating GUIDInfo request (%s)\n",
82 			ib_get_err_str(status));
83 }
84 
85 osm_guidinfo_work_obj_t *osm_guid_work_obj_new(IN osm_port_t * p_port,
86 					       IN uint8_t block_num)
87 {
88 	osm_guidinfo_work_obj_t *p_obj;
89 
90 	/*
91 	   clean allocated memory to avoid assertion when trying to insert to
92 	   qlist.
93 	   see cl_qlist_insert_tail(): CL_ASSERT(p_list_item->p_list != p_list)
94 	*/
95 	p_obj = calloc(1, sizeof(*p_obj));
96 	if (p_obj) {
97 		p_obj->p_port = p_port;
98 		p_obj->block_num = block_num;
99 	}
100 
101 	return p_obj;
102 }
103 
104 void osm_guid_work_obj_delete(IN osm_guidinfo_work_obj_t * p_wobj)
105 {
106 	free(p_wobj);
107 }
108 
109 int osm_queue_guidinfo(IN osm_sa_t *sa, IN osm_port_t *p_port,
110 		      IN uint8_t block_num)
111 {
112 	osm_guidinfo_work_obj_t *p_obj;
113 	int status = 1;
114 
115 	p_obj = osm_guid_work_obj_new(p_port, block_num);
116 	if (p_obj)
117 		cl_qlist_insert_tail(&sa->p_subn->alias_guid_list,
118 				     &p_obj->list_item);
119 	else {
120 		OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 510F: "
121 			"Memory allocation of guid work object failed\n");
122 		status = 0;
123 	}
124 
125 	return status;
126 }
127 
128 void osm_guid_mgr_process(IN osm_sm_t * sm) {
129 	osm_guidinfo_work_obj_t *p_obj;
130 
131 	OSM_LOG_ENTER(sm->p_log);
132 
133 	OSM_LOG(sm->p_log, OSM_LOG_DEBUG, "Processing alias guid list\n");
134 
135 	CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
136 	while (cl_qlist_count(&sm->p_subn->alias_guid_list)) {
137 		p_obj = (osm_guidinfo_work_obj_t *) cl_qlist_remove_head(&sm->p_subn->alias_guid_list);
138 		guidinfo_set(&sm->p_subn->p_osm->sa, p_obj->p_port,
139 			     p_obj->block_num);
140 		osm_guid_work_obj_delete(p_obj);
141 	}
142 
143 	CL_PLOCK_RELEASE(sm->p_lock);
144 	OSM_LOG_EXIT(sm->p_log);
145 }
146