contrib/ofed/management/opensm/opensm/osm_sa_slvl_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_slvl_rec_rcv_t.
  39  * This object represents the SLtoVL Mapping Query 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_port.h>
  55 #include <opensm/osm_node.h>
  56 #include <opensm/osm_helper.h>
  57 #include <opensm/osm_pkey.h>
  58 #include <opensm/osm_sa.h>
  59
  60 typedef struct osm_slvl_item {
  61         cl_list_item_t list_item;
  62         ib_slvl_table_record_t rec;
  63 } osm_slvl_item_t;
  64
  65 typedef struct osm_slvl_search_ctxt {
  66         const ib_slvl_table_record_t *p_rcvd_rec;
  67         ib_net64_t comp_mask;
  68         uint8_t in_port_num;
  69         cl_qlist_t *p_list;
  70         osm_sa_t *sa;
  71         const osm_physp_t *p_req_physp;
  72 } osm_slvl_search_ctxt_t;
  73
  74 /**********************************************************************
  75  **********************************************************************/
  76 static void
  77 __osm_sa_slvl_create(IN osm_sa_t * sa,
  78                      IN const osm_physp_t * const p_physp,
  79                      IN osm_slvl_search_ctxt_t * const p_ctxt,
  80                      IN uint8_t in_port_idx)
  81 {
  82         osm_slvl_item_t *p_rec_item;
  83         uint16_t lid;
  84         ib_api_status_t status = IB_SUCCESS;
  85
  86         OSM_LOG_ENTER(sa->p_log);
  87
  88         p_rec_item = malloc(sizeof(*p_rec_item));
  89         if (p_rec_item == NULL) {
  90                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2602: "
  91                         "rec_item alloc failed\n");
  92                 status = IB_INSUFFICIENT_RESOURCES;
  93                 goto Exit;
  94         }
  95
  96         if (p_physp->p_node->node_info.node_type != IB_NODE_TYPE_SWITCH)
  97                 lid = p_physp->port_info.base_lid;
  98         else
  99                 lid = osm_node_get_base_lid(p_physp->p_node, 0);
 100
 101         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 102                 "New SLtoVL Map for: OUT port 0x%016" PRIx64
 103                 ", lid 0x%X, port %u to In Port:%u\n",
 104                 cl_ntoh64(osm_physp_get_port_guid(p_physp)),
 105                 cl_ntoh16(lid), osm_physp_get_port_num(p_physp), in_port_idx);
 106
 107         memset(p_rec_item, 0, sizeof(*p_rec_item));
 108
 109         p_rec_item->rec.lid = lid;
 110         p_rec_item->rec.out_port_num = osm_physp_get_port_num(p_physp);
 111         p_rec_item->rec.in_port_num = in_port_idx;
 112         p_rec_item->rec.slvl_tbl =
 113             *(osm_physp_get_slvl_tbl(p_physp, in_port_idx));
 114
 115         cl_qlist_insert_tail(p_ctxt->p_list, &p_rec_item->list_item);
 116
 117 Exit:
 118         OSM_LOG_EXIT(sa->p_log);
 119 }
 120
 121 /**********************************************************************
 122  **********************************************************************/
 123 static void
 124 __osm_sa_slvl_by_comp_mask(IN osm_sa_t * sa,
 125                            IN const osm_port_t * const p_port,
 126                            osm_slvl_search_ctxt_t * const p_ctxt)
 127 {
 128         const ib_slvl_table_record_t *p_rcvd_rec;
 129         ib_net64_t comp_mask;
 130         const osm_physp_t *p_out_physp, *p_in_physp;
 131         uint8_t in_port_num, out_port_num;
 132         uint8_t num_ports;
 133         uint8_t in_port_start, in_port_end;
 134         uint8_t out_port_start, out_port_end;
 135         const osm_physp_t *p_req_physp;
 136
 137         OSM_LOG_ENTER(sa->p_log);
 138
 139         p_rcvd_rec = p_ctxt->p_rcvd_rec;
 140         comp_mask = p_ctxt->comp_mask;
 141         num_ports = osm_node_get_num_physp(p_port->p_node);
 142         in_port_start = 0;
 143         in_port_end = num_ports - 1;
 144         out_port_start = 0;
 145         out_port_end = num_ports - 1;
 146         p_req_physp = p_ctxt->p_req_physp;
 147
 148         if (p_port->p_node->node_info.node_type != IB_NODE_TYPE_SWITCH) {
 149                 OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 150                         "Using Physical Default Port Number: 0x%X (for End Node)\n",
 151                         p_port->p_physp->port_num);
 152                 p_out_physp = p_port->p_physp;
 153                 /* check that the p_out_physp and the p_req_physp share a pkey */
 154                 if (osm_physp_share_pkey
 155                     (sa->p_log, p_req_physp, p_out_physp))
 156                         __osm_sa_slvl_create(sa, p_out_physp, p_ctxt, 0);
 157         } else {
 158                 if (comp_mask & IB_SLVL_COMPMASK_OUT_PORT)
 159                         out_port_start = out_port_end =
 160                             p_rcvd_rec->out_port_num;
 161                 if (comp_mask & IB_SLVL_COMPMASK_IN_PORT)
 162                         in_port_start = in_port_end = p_rcvd_rec->in_port_num;
 163
 164                 for (out_port_num = out_port_start;
 165                      out_port_num <= out_port_end; out_port_num++) {
 166                         p_out_physp =
 167                             osm_node_get_physp_ptr(p_port->p_node,
 168                                                    out_port_num);
 169                         if (!p_out_physp)
 170                                 continue;
 171
 172                         for (in_port_num = in_port_start;
 173                              in_port_num <= in_port_end; in_port_num++) {
 174 #if 0
 175                                 if (out_port_num && out_port_num == in_port_num)
 176                                         continue;
 177 #endif
 178
 179                                 p_in_physp =
 180                                     osm_node_get_physp_ptr(p_port->p_node,
 181                                                            in_port_num);
 182                                 if (!p_in_physp)
 183                                         continue;
 184
 185                                 /* if the requester and the p_out_physp don't share a pkey -
 186                                    continue */
 187                                 if (!osm_physp_share_pkey
 188                                     (sa->p_log, p_req_physp, p_out_physp))
 189                                         continue;
 190
 191                                 __osm_sa_slvl_create(sa, p_out_physp, p_ctxt,
 192                                                      in_port_num);
 193                         }
 194                 }
 195         }
 196         OSM_LOG_EXIT(sa->p_log);
 197 }
 198
 199 /**********************************************************************
 200  **********************************************************************/
 201 static void
 202 __osm_sa_slvl_by_comp_mask_cb(IN cl_map_item_t * const p_map_item,
 203                               IN void *context)
 204 {
 205         const osm_port_t *const p_port = (osm_port_t *) p_map_item;
 206         osm_slvl_search_ctxt_t *const p_ctxt =
 207             (osm_slvl_search_ctxt_t *) context;
 208
 209         __osm_sa_slvl_by_comp_mask(p_ctxt->sa, p_port, p_ctxt);
 210 }
 211
 212 /**********************************************************************
 213  **********************************************************************/
 214 void osm_slvl_rec_rcv_process(IN void *ctx, IN void *data)
 215 {
 216         osm_sa_t *sa = ctx;
 217         osm_madw_t *p_madw = data;
 218         const ib_sa_mad_t *p_rcvd_mad;
 219         const ib_slvl_table_record_t *p_rcvd_rec;
 220         const osm_port_t *p_port = NULL;
 221         cl_qlist_t rec_list;
 222         osm_slvl_search_ctxt_t context;
 223         ib_api_status_t status = IB_SUCCESS;
 224         ib_net64_t comp_mask;
 225         osm_physp_t *p_req_physp;
 226
 227         CL_ASSERT(sa);
 228
 229         OSM_LOG_ENTER(sa->p_log);
 230
 231         CL_ASSERT(p_madw);
 232
 233         p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw);
 234         p_rcvd_rec =
 235             (ib_slvl_table_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad);
 236         comp_mask = p_rcvd_mad->comp_mask;
 237
 238         CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_SLVL_RECORD);
 239
 240         /* we only support SubnAdmGet and SubnAdmGetTable methods */
 241         if (p_rcvd_mad->method != IB_MAD_METHOD_GET &&
 242             p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) {
 243                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2604: "
 244                         "Unsupported Method (%s)\n",
 245                         ib_get_sa_method_str(p_rcvd_mad->method));
 246                 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR);
 247                 goto Exit;
 248         }
 249
 250         /* update the requester physical port. */
 251         p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn,
 252                                                 osm_madw_get_mad_addr_ptr
 253                                                 (p_madw));
 254         if (p_req_physp == NULL) {
 255                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2603: "
 256                         "Cannot find requester physical port\n");
 257                 goto Exit;
 258         }
 259
 260         cl_qlist_init(&rec_list);
 261
 262         context.p_rcvd_rec = p_rcvd_rec;
 263         context.p_list = &rec_list;
 264         context.comp_mask = p_rcvd_mad->comp_mask;
 265         context.sa = sa;
 266         context.in_port_num = p_rcvd_rec->in_port_num;
 267         context.p_req_physp = p_req_physp;
 268
 269         cl_plock_acquire(sa->p_lock);
 270
 271         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 272                 "Got Query Lid:%u(%02X), In-Port:0x%02X(%02X), Out-Port:0x%02X(%02X)\n",
 273                 cl_ntoh16(p_rcvd_rec->lid),
 274                 (comp_mask & IB_SLVL_COMPMASK_LID) != 0,
 275                 p_rcvd_rec->in_port_num,
 276                 (comp_mask & IB_SLVL_COMPMASK_IN_PORT) != 0,
 277                 p_rcvd_rec->out_port_num,
 278                 (comp_mask & IB_SLVL_COMPMASK_OUT_PORT) != 0);
 279
 280         /*
 281            If the user specified a LID, it obviously narrows our
 282            work load, since we don't have to search every port
 283          */
 284         if (comp_mask & IB_SLVL_COMPMASK_LID) {
 285                 status =
 286                     osm_get_port_by_base_lid(sa->p_subn, p_rcvd_rec->lid,
 287                                              &p_port);
 288                 if ((status != IB_SUCCESS) || (p_port == NULL)) {
 289                         status = IB_NOT_FOUND;
 290                         OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2608: "
 291                                 "No port found with LID %u\n",
 292                                 cl_ntoh16(p_rcvd_rec->lid));
 293                 }
 294         }
 295
 296         if (status == IB_SUCCESS) {
 297                 /* if we have a unique port - no need for a port search */
 298                 if (p_port)
 299                         /*  this does the loop on all the port phys ports */
 300                         __osm_sa_slvl_by_comp_mask(sa, p_port, &context);
 301                 else
 302                         cl_qmap_apply_func(&sa->p_subn->port_guid_tbl,
 303                                            __osm_sa_slvl_by_comp_mask_cb,
 304                                            &context);
 305         }
 306
 307         cl_plock_release(sa->p_lock);
 308
 309         osm_sa_respond(sa, p_madw, sizeof(ib_slvl_table_record_t), &rec_list);
 310
 311 Exit:
 312         OSM_LOG_EXIT(sa->p_log);
 313 }