contrib/ofed/management/opensm/opensm/osm_sa_sw_info_record.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_sir_rcv_t.
  39  * This object represents the SwitchInfo 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_debug.h>
  50 #include <complib/cl_qlist.h>
  51 #include <vendor/osm_vendor_api.h>
  52 #include <opensm/osm_node.h>
  53 #include <opensm/osm_helper.h>
  54 #include <opensm/osm_pkey.h>
  55 #include <opensm/osm_sa.h>
  56
  57 typedef struct osm_sir_item {
  58         cl_list_item_t list_item;
  59         ib_switch_info_record_t rec;
  60 } osm_sir_item_t;
  61
  62 typedef struct osm_sir_search_ctxt {
  63         const ib_switch_info_record_t *p_rcvd_rec;
  64         ib_net64_t comp_mask;
  65         cl_qlist_t *p_list;
  66         osm_sa_t *sa;
  67         const osm_physp_t *p_req_physp;
  68 } osm_sir_search_ctxt_t;
  69
  70 /**********************************************************************
  71  **********************************************************************/
  72 static ib_api_status_t
  73 __osm_sir_rcv_new_sir(IN osm_sa_t * sa,
  74                       IN const osm_switch_t * const p_sw,
  75                       IN cl_qlist_t * const p_list, IN ib_net16_t const lid)
  76 {
  77         osm_sir_item_t *p_rec_item;
  78         ib_api_status_t status = IB_SUCCESS;
  79
  80         OSM_LOG_ENTER(sa->p_log);
  81
  82         p_rec_item = malloc(sizeof(*p_rec_item));
  83         if (p_rec_item == NULL) {
  84                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 5308: "
  85                         "rec_item alloc failed\n");
  86                 status = IB_INSUFFICIENT_RESOURCES;
  87                 goto Exit;
  88         }
  89
  90         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
  91                 "New SwitchInfoRecord: lid %u\n", cl_ntoh16(lid));
  92
  93         memset(p_rec_item, 0, sizeof(*p_rec_item));
  94
  95         p_rec_item->rec.lid = lid;
  96         p_rec_item->rec.switch_info = p_sw->switch_info;
  97
  98         cl_qlist_insert_tail(p_list, &p_rec_item->list_item);
  99
 100 Exit:
 101         OSM_LOG_EXIT(sa->p_log);
 102         return (status);
 103 }
 104
 105 /**********************************************************************
 106  **********************************************************************/
 107 static void
 108 __osm_sir_rcv_create_sir(IN osm_sa_t * sa,
 109                          IN const osm_switch_t * const p_sw,
 110                          IN cl_qlist_t * const p_list,
 111                          IN ib_net16_t const match_lid,
 112                          IN const osm_physp_t * const p_req_physp)
 113 {
 114         osm_port_t *p_port;
 115         const osm_physp_t *p_physp;
 116         uint16_t match_lid_ho;
 117         ib_net16_t min_lid_ho;
 118         ib_net16_t max_lid_ho;
 119
 120         OSM_LOG_ENTER(sa->p_log);
 121
 122         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 123                 "Looking for SwitchInfoRecord with LID: %u\n",
 124                 cl_ntoh16(match_lid));
 125
 126         /* In switches, the port guid is the node guid. */
 127         p_port =
 128             osm_get_port_by_guid(sa->p_subn, p_sw->p_node->node_info.port_guid);
 129         if (!p_port) {
 130                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 530A: "
 131                         "Failed to find Port by Node Guid:0x%016" PRIx64
 132                         "\n", cl_ntoh64(p_sw->p_node->node_info.node_guid));
 133                 goto Exit;
 134         }
 135
 136         /* check that the requester physp and the current physp are under
 137            the same partition. */
 138         p_physp = p_port->p_physp;
 139         if (!p_physp) {
 140                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 530B: "
 141                         "Failed to find default physical Port by Node Guid:0x%016"
 142                         PRIx64 "\n",
 143                         cl_ntoh64(p_sw->p_node->node_info.node_guid));
 144                 goto Exit;
 145         }
 146         if (!osm_physp_share_pkey(sa->p_log, p_req_physp, p_physp))
 147                 goto Exit;
 148
 149         /* get the port 0 of the switch */
 150         osm_port_get_lid_range_ho(p_port, &min_lid_ho, &max_lid_ho);
 151
 152         match_lid_ho = cl_ntoh16(match_lid);
 153         if (match_lid_ho) {
 154                 /*
 155                    We validate that the lid belongs to this switch.
 156                  */
 157                 OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 158                         "Comparing LID: %u <= %u <= %u\n",
 159                         min_lid_ho, match_lid_ho, max_lid_ho);
 160
 161                 if (match_lid_ho < min_lid_ho || match_lid_ho > max_lid_ho)
 162                         goto Exit;
 163
 164         }
 165
 166         __osm_sir_rcv_new_sir(sa, p_sw, p_list, osm_port_get_base_lid(p_port));
 167
 168 Exit:
 169         OSM_LOG_EXIT(sa->p_log);
 170 }
 171
 172 /**********************************************************************
 173  **********************************************************************/
 174 static void
 175 __osm_sir_rcv_by_comp_mask(IN cl_map_item_t * const p_map_item,
 176                            IN void *context)
 177 {
 178         const osm_sir_search_ctxt_t *const p_ctxt =
 179             (osm_sir_search_ctxt_t *) context;
 180         const osm_switch_t *const p_sw = (osm_switch_t *) p_map_item;
 181         const ib_switch_info_record_t *const p_rcvd_rec = p_ctxt->p_rcvd_rec;
 182         const osm_physp_t *const p_req_physp = p_ctxt->p_req_physp;
 183         osm_sa_t *sa = p_ctxt->sa;
 184         ib_net64_t const comp_mask = p_ctxt->comp_mask;
 185         ib_net16_t match_lid = 0;
 186
 187         OSM_LOG_ENTER(p_ctxt->sa->p_log);
 188
 189         osm_dump_switch_info(p_ctxt->sa->p_log,
 190                              &p_sw->switch_info, OSM_LOG_VERBOSE);
 191
 192         if (comp_mask & IB_SWIR_COMPMASK_LID) {
 193                 match_lid = p_rcvd_rec->lid;
 194                 if (!match_lid)
 195                         goto Exit;
 196         }
 197
 198         __osm_sir_rcv_create_sir(sa, p_sw, p_ctxt->p_list,
 199                                  match_lid, p_req_physp);
 200
 201 Exit:
 202         OSM_LOG_EXIT(p_ctxt->sa->p_log);
 203 }
 204
 205 /**********************************************************************
 206  **********************************************************************/
 207 void osm_sir_rcv_process(IN void *ctx, IN void *data)
 208 {
 209         osm_sa_t *sa = ctx;
 210         osm_madw_t *p_madw = data;
 211         const ib_sa_mad_t *sad_mad;
 212         const ib_switch_info_record_t *p_rcvd_rec;
 213         cl_qlist_t rec_list;
 214         osm_sir_search_ctxt_t context;
 215         osm_physp_t *p_req_physp;
 216
 217         CL_ASSERT(sa);
 218
 219         OSM_LOG_ENTER(sa->p_log);
 220
 221         CL_ASSERT(p_madw);
 222
 223         sad_mad = osm_madw_get_sa_mad_ptr(p_madw);
 224         p_rcvd_rec =
 225             (ib_switch_info_record_t *) ib_sa_mad_get_payload_ptr(sad_mad);
 226
 227         CL_ASSERT(sad_mad->attr_id == IB_MAD_ATTR_SWITCH_INFO_RECORD);
 228
 229         /* we only support SubnAdmGet and SubnAdmGetTable methods */
 230         if (sad_mad->method != IB_MAD_METHOD_GET &&
 231             sad_mad->method != IB_MAD_METHOD_GETTABLE) {
 232                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 5305: "
 233                         "Unsupported Method (%s)\n",
 234                         ib_get_sa_method_str(sad_mad->method));
 235                 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR);
 236                 goto Exit;
 237         }
 238
 239         /* update the requester physical port. */
 240         p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn,
 241                                                 osm_madw_get_mad_addr_ptr
 242                                                 (p_madw));
 243         if (p_req_physp == NULL) {
 244                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 5304: "
 245                         "Cannot find requester physical port\n");
 246                 goto Exit;
 247         }
 248
 249         if (osm_log_is_active(sa->p_log, OSM_LOG_DEBUG))
 250                 osm_dump_switch_info_record(sa->p_log, p_rcvd_rec,
 251                                             OSM_LOG_DEBUG);
 252
 253         cl_qlist_init(&rec_list);
 254
 255         context.p_rcvd_rec = p_rcvd_rec;
 256         context.p_list = &rec_list;
 257         context.comp_mask = sad_mad->comp_mask;
 258         context.sa = sa;
 259         context.p_req_physp = p_req_physp;
 260
 261         cl_plock_acquire(sa->p_lock);
 262
 263         /* Go over all switches */
 264         cl_qmap_apply_func(&sa->p_subn->sw_guid_tbl,
 265                            __osm_sir_rcv_by_comp_mask, &context);
 266
 267         cl_plock_release(sa->p_lock);
 268
 269         osm_sa_respond(sa, p_madw, sizeof(ib_switch_info_record_t), &rec_list);
 270
 271 Exit:
 272         OSM_LOG_EXIT(sa->p_log);
 273 }