1/*
2 * Copyright (c) 2004-2008 Voltaire, Inc. All rights reserved.
3 * Copyright (c) 2002-2005 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_slvl_rcv_t.
39 * This object represents the SLtoVL Receiver 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_passivelock.h>
50#include <complib/cl_debug.h>
51#include <opensm/osm_madw.h>
52#include <opensm/osm_log.h>
53#include <opensm/osm_node.h>
54#include <opensm/osm_subnet.h>
55#include <opensm/osm_helper.h>
56#include <opensm/osm_sm.h>
57
58/**********************************************************************
59 **********************************************************************/
60/*
61 * WE MIGHT ONLY RECEIVE A GET or SET responses
62 */
63void osm_slvl_rcv_process(IN void *context, IN void *p_data)
64{
65	osm_sm_t *sm = context;
66	osm_madw_t *p_madw = p_data;
67	ib_slvl_table_t *p_slvl_tbl;
68	ib_smp_t *p_smp;
69	osm_port_t *p_port;
70	osm_physp_t *p_physp;
71	osm_node_t *p_node;
72	osm_slvl_context_t *p_context;
73	ib_net64_t port_guid;
74	ib_net64_t node_guid;
75	uint8_t out_port_num, in_port_num;
76
77	CL_ASSERT(sm);
78
79	OSM_LOG_ENTER(sm->p_log);
80
81	CL_ASSERT(p_madw);
82
83	p_smp = osm_madw_get_smp_ptr(p_madw);
84	p_context = osm_madw_get_slvl_context_ptr(p_madw);
85	p_slvl_tbl = (ib_slvl_table_t *) ib_smp_get_payload_ptr(p_smp);
86
87	port_guid = p_context->port_guid;
88	node_guid = p_context->node_guid;
89
90	CL_ASSERT(p_smp->attr_id == IB_MAD_ATTR_SLVL_TABLE);
91
92	cl_plock_excl_acquire(sm->p_lock);
93	p_port = osm_get_port_by_guid(sm->p_subn, port_guid);
94
95	if (!p_port) {
96		cl_plock_release(sm->p_lock);
97		OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2C06: "
98			"No port object for port with GUID 0x%" PRIx64
99			"\n\t\t\t\tfor parent node GUID 0x%" PRIx64
100			", TID 0x%" PRIx64 "\n",
101			cl_ntoh64(port_guid),
102			cl_ntoh64(node_guid), cl_ntoh64(p_smp->trans_id));
103		goto Exit;
104	}
105
106	p_node = p_port->p_node;
107	CL_ASSERT(p_node);
108
109	/* in case of a non switch node the attr modifier should be ignored */
110	if (osm_node_get_type(p_node) == IB_NODE_TYPE_SWITCH) {
111		out_port_num =
112		    (uint8_t) cl_ntoh32(p_smp->attr_mod & 0xFF000000);
113		in_port_num =
114		    (uint8_t) cl_ntoh32((p_smp->attr_mod & 0x00FF0000) << 8);
115		p_physp = osm_node_get_physp_ptr(p_node, out_port_num);
116	} else {
117		p_physp = p_port->p_physp;
118		out_port_num = p_physp->port_num;
119		in_port_num = 0;
120	}
121
122	/*
123	   We do not mind if this is a result of a set or get - all we want is to update
124	   the subnet.
125	 */
126	OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
127		"Got SLtoVL get response in_port_num %u out_port_num %u with "
128		"GUID 0x%" PRIx64 " for parent node GUID 0x%" PRIx64 ", TID 0x%"
129		PRIx64 "\n", in_port_num, out_port_num, cl_ntoh64(port_guid),
130		cl_ntoh64(node_guid), cl_ntoh64(p_smp->trans_id));
131
132	/*
133	   Determine if we encountered a new Physical Port.
134	   If so, Ignore it.
135	 */
136	if (!p_physp) {
137		OSM_LOG(sm->p_log, OSM_LOG_ERROR,
138			"Got invalid port number %u\n", out_port_num);
139		goto Exit;
140	}
141
142	osm_dump_slvl_map_table(sm->p_log,
143				port_guid, in_port_num,
144				out_port_num, p_slvl_tbl, OSM_LOG_DEBUG);
145
146	osm_physp_set_slvl_tbl(p_physp, p_slvl_tbl, in_port_num);
147
148Exit:
149	cl_plock_release(sm->p_lock);
150
151	OSM_LOG_EXIT(sm->p_log);
152}
153