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[FreeBSD/releng/9.2.git] / contrib / ofed / management / opensm / opensm / osm_sa_class_port_info.c
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_cpi_rcv_t.
39  * This object represents the ClassPortInfo 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_qmap.h>
50 #include <complib/cl_passivelock.h>
51 #include <complib/cl_debug.h>
52 #include <complib/cl_qlist.h>
53 #include <vendor/osm_vendor_api.h>
54 #include <opensm/osm_helper.h>
55 #include <opensm/osm_sa.h>
56
57 #define MAX_MSECS_TO_RTV 24
58 /* Precalculated table in msec (index is related to encoded value) */
59 /* 4.096 usec * 2 ** n (where n = 8 - 31) */
60 const static uint32_t __msecs_to_rtv_table[MAX_MSECS_TO_RTV] = {
61         1, 2, 4, 8,
62         16, 33, 67, 134,
63         268, 536, 1073, 2147,
64         4294, 8589, 17179, 34359,
65         68719, 137438, 274877, 549755,
66         1099511, 2199023, 4398046, 8796093
67 };
68
69 /**********************************************************************
70  **********************************************************************/
71 static void
72 __osm_cpi_rcv_respond(IN osm_sa_t * sa,
73                       IN const osm_madw_t * const p_madw)
74 {
75         osm_madw_t *p_resp_madw;
76         const ib_sa_mad_t *p_sa_mad;
77         ib_sa_mad_t *p_resp_sa_mad;
78         ib_class_port_info_t *p_resp_cpi;
79         ib_gid_t zero_gid;
80         uint8_t rtv;
81
82         OSM_LOG_ENTER(sa->p_log);
83
84         memset(&zero_gid, 0, sizeof(ib_gid_t));
85
86         /*
87            Get a MAD to reply. Address of Mad is in the received mad_wrapper
88          */
89         p_resp_madw = osm_mad_pool_get(sa->p_mad_pool, p_madw->h_bind,
90                                        MAD_BLOCK_SIZE, &p_madw->mad_addr);
91         if (!p_resp_madw) {
92                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 1408: "
93                         "Unable to allocate MAD\n");
94                 goto Exit;
95         }
96
97         p_sa_mad = osm_madw_get_sa_mad_ptr(p_madw);
98         p_resp_sa_mad = osm_madw_get_sa_mad_ptr(p_resp_madw);
99
100         memcpy(p_resp_sa_mad, p_sa_mad, IB_SA_MAD_HDR_SIZE);
101         p_resp_sa_mad->method |= IB_MAD_METHOD_RESP_MASK;
102         /* C15-0.1.5 - always return SM_Key = 0 (table 185 p 884) */
103         p_resp_sa_mad->sm_key = 0;
104
105         p_resp_cpi =
106             (ib_class_port_info_t *) ib_sa_mad_get_payload_ptr(p_resp_sa_mad);
107
108         /* finally do it (the job) man ! */
109         p_resp_cpi->base_ver = 1;
110         p_resp_cpi->class_ver = 2;
111         /* Calculate encoded response time value */
112         /* transaction timeout is in msec */
113         if (sa->p_subn->opt.transaction_timeout >
114             __msecs_to_rtv_table[MAX_MSECS_TO_RTV - 1])
115                 rtv = MAX_MSECS_TO_RTV - 1;
116         else {
117                 for (rtv = 0; rtv < MAX_MSECS_TO_RTV; rtv++) {
118                         if (sa->p_subn->opt.transaction_timeout <=
119                             __msecs_to_rtv_table[rtv])
120                                 break;
121                 }
122         }
123         rtv += 8;
124         ib_class_set_resp_time_val(p_resp_cpi, rtv);
125         p_resp_cpi->redir_gid = zero_gid;
126         p_resp_cpi->redir_tc_sl_fl = 0;
127         p_resp_cpi->redir_lid = 0;
128         p_resp_cpi->redir_pkey = 0;
129         p_resp_cpi->redir_qp = CL_NTOH32(1);
130         p_resp_cpi->redir_qkey = IB_QP1_WELL_KNOWN_Q_KEY;
131         p_resp_cpi->trap_gid = zero_gid;
132         p_resp_cpi->trap_tc_sl_fl = 0;
133         p_resp_cpi->trap_lid = 0;
134         p_resp_cpi->trap_pkey = 0;
135         p_resp_cpi->trap_hop_qp = 0;
136         p_resp_cpi->trap_qkey = IB_QP1_WELL_KNOWN_Q_KEY;
137
138         /* set specific capability mask bits */
139         /* we do not support the following options/optional records:
140            OSM_CAP_IS_SUBN_OPT_RECS_SUP :
141            RandomForwardingTableRecord,
142            ServiceAssociationRecord
143            other optional records supported "under the table"
144
145            OSM_CAP_IS_MULTIPATH_SUP:
146            TraceRecord
147
148            OSM_CAP_IS_REINIT_SUP:
149            For reinitialization functionality.
150
151            So not sending traps, but supporting Get(Notice) and Set(Notice).
152          */
153
154         /* Note host notation replaced later */
155 #if defined (VENDOR_RMPP_SUPPORT) && defined (DUAL_SIDED_RMPP)
156         p_resp_cpi->cap_mask = OSM_CAP_IS_SUBN_GET_SET_NOTICE_SUP |
157             OSM_CAP_IS_PORT_INFO_CAPMASK_MATCH_SUPPORTED |
158             OSM_CAP_IS_MULTIPATH_SUP;
159 #else
160         p_resp_cpi->cap_mask = OSM_CAP_IS_SUBN_GET_SET_NOTICE_SUP |
161             OSM_CAP_IS_PORT_INFO_CAPMASK_MATCH_SUPPORTED;
162 #endif
163         if (sa->p_subn->opt.qos)
164                 ib_class_set_cap_mask2(p_resp_cpi, OSM_CAP2_IS_QOS_SUPPORTED);
165
166         if (!sa->p_subn->opt.disable_multicast)
167                 p_resp_cpi->cap_mask |= OSM_CAP_IS_UD_MCAST_SUP;
168         p_resp_cpi->cap_mask = cl_hton16(p_resp_cpi->cap_mask);
169
170         if (osm_log_is_active(sa->p_log, OSM_LOG_FRAMES))
171                 osm_dump_sa_mad(sa->p_log, p_resp_sa_mad, OSM_LOG_FRAMES);
172
173         osm_sa_send(sa, p_resp_madw, FALSE);
174
175 Exit:
176         OSM_LOG_EXIT(sa->p_log);
177 }
178
179 /**********************************************************************
180  * This code actually handles the call
181  **********************************************************************/
182 void osm_cpi_rcv_process(IN void *context, IN void *data)
183 {
184         osm_sa_t *sa = context;
185         osm_madw_t *p_madw = data;
186         const ib_sa_mad_t *p_sa_mad;
187
188         OSM_LOG_ENTER(sa->p_log);
189
190         CL_ASSERT(p_madw);
191
192         p_sa_mad = osm_madw_get_sa_mad_ptr(p_madw);
193
194         /* we only support GET */
195         if (p_sa_mad->method != IB_MAD_METHOD_GET) {
196                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 1403: "
197                         "Unsupported Method (%s)\n",
198                         ib_get_sa_method_str(p_sa_mad->method));
199                 osm_sa_send_error(sa, p_madw, IB_SA_MAD_STATUS_REQ_INVALID);
200                 goto Exit;
201         }
202
203         CL_ASSERT(p_sa_mad->attr_id == IB_MAD_ATTR_CLASS_PORT_INFO);
204
205         /*
206            CLASS PORT INFO does not really look on the SMDB - no lock required.
207          */
208
209         __osm_cpi_rcv_respond(sa, p_madw);
210
211 Exit:
212         OSM_LOG_EXIT(sa->p_log);
213 }