contrib/ofed/opensm/opensm/osm_sa_slvl_record.c

   1 /*
   2  * Copyright (c) 2004-2009 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  * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * OpenIB.org BSD license below:
  12  *
  13  *     Redistribution and use in source and binary forms, with or
  14  *     without modification, are permitted provided that the following
  15  *     conditions are met:
  16  *
  17  *      - Redistributions of source code must retain the above
  18  *        copyright notice, this list of conditions and the following
  19  *        disclaimer.
  20  *
  21  *      - Redistributions in binary form must reproduce the above
  22  *        copyright notice, this list of conditions and the following
  23  *        disclaimer in the documentation and/or other materials
  24  *        provided with the distribution.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33  * SOFTWARE.
  34  *
  35  */
  36
  37 /*
  38  * Abstract:
  39  *    Implementation of osm_slvl_rec_rcv_t.
  40  * This object represents the SLtoVL Mapping Query Receiver object.
  41  * This object is part of the opensm family of objects.
  42  */
  43
  44 #if HAVE_CONFIG_H
  45 #  include <config.h>
  46 #endif                          /* HAVE_CONFIG_H */
  47
  48 #include <string.h>
  49 #include <iba/ib_types.h>
  50 #include <complib/cl_qmap.h>
  51 #include <complib/cl_passivelock.h>
  52 #include <complib/cl_debug.h>
  53 #include <complib/cl_qlist.h>
  54 #include <opensm/osm_file_ids.h>
  55 #define FILE_ID OSM_FILE_SA_SLVL_RECORD_C
  56 #include <vendor/osm_vendor_api.h>
  57 #include <opensm/osm_port.h>
  58 #include <opensm/osm_node.h>
  59 #include <opensm/osm_helper.h>
  60 #include <opensm/osm_pkey.h>
  61 #include <opensm/osm_sa.h>
  62
  63 #define SA_SLVL_RESP_SIZE SA_ITEM_RESP_SIZE(slvl_rec)
  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 static void sa_slvl_create(IN osm_sa_t * sa, IN const osm_physp_t * p_physp,
  75                            IN osm_slvl_search_ctxt_t * p_ctxt,
  76                            IN uint8_t in_port_idx)
  77 {
  78         osm_sa_item_t *p_rec_item;
  79         uint16_t lid;
  80
  81         OSM_LOG_ENTER(sa->p_log);
  82
  83         p_rec_item = malloc(SA_SLVL_RESP_SIZE);
  84         if (p_rec_item == NULL) {
  85                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2602: "
  86                         "rec_item alloc failed\n");
  87                 goto Exit;
  88         }
  89
  90         if (p_physp->p_node->node_info.node_type != IB_NODE_TYPE_SWITCH)
  91                 lid = p_physp->port_info.base_lid;
  92         else
  93                 lid = osm_node_get_base_lid(p_physp->p_node, 0);
  94
  95         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
  96                 "New SLtoVL Map for: OUT port 0x%016" PRIx64
  97                 ", lid 0x%X, port %u to In Port:%u\n",
  98                 cl_ntoh64(osm_physp_get_port_guid(p_physp)),
  99                 cl_ntoh16(lid), osm_physp_get_port_num(p_physp), in_port_idx);
 100
 101         memset(p_rec_item, 0, SA_SLVL_RESP_SIZE);
 102
 103         p_rec_item->resp.slvl_rec.lid = lid;
 104         if (p_physp->p_node->node_info.node_type == IB_NODE_TYPE_SWITCH) {
 105                 p_rec_item->resp.slvl_rec.out_port_num = osm_physp_get_port_num(p_physp);
 106                 p_rec_item->resp.slvl_rec.in_port_num = in_port_idx;
 107         }
 108         p_rec_item->resp.slvl_rec.slvl_tbl =
 109             *(osm_physp_get_slvl_tbl(p_physp, in_port_idx));
 110
 111         cl_qlist_insert_tail(p_ctxt->p_list, &p_rec_item->list_item);
 112
 113 Exit:
 114         OSM_LOG_EXIT(sa->p_log);
 115 }
 116
 117 static void sa_slvl_by_comp_mask(IN osm_sa_t * sa, IN const osm_port_t * p_port,
 118                                  osm_slvl_search_ctxt_t * p_ctxt)
 119 {
 120         const ib_slvl_table_record_t *p_rcvd_rec;
 121         ib_net64_t comp_mask;
 122         const osm_physp_t *p_out_physp, *p_in_physp;
 123         uint8_t in_port_num, out_port_num;
 124         uint8_t num_ports;
 125         uint8_t in_port_start, in_port_end;
 126         uint8_t out_port_start, out_port_end;
 127         const osm_physp_t *p_req_physp;
 128
 129         OSM_LOG_ENTER(sa->p_log);
 130
 131         p_rcvd_rec = p_ctxt->p_rcvd_rec;
 132         comp_mask = p_ctxt->comp_mask;
 133         num_ports = osm_node_get_num_physp(p_port->p_node);
 134         in_port_start = 0;
 135         in_port_end = num_ports - 1;
 136         out_port_start = 0;
 137         out_port_end = num_ports - 1;
 138         p_req_physp = p_ctxt->p_req_physp;
 139
 140         if (p_port->p_node->node_info.node_type != IB_NODE_TYPE_SWITCH) {
 141                 OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 142                         "Using Physical Default Port Number: 0x%X (for End Node)\n",
 143                         p_port->p_physp->port_num);
 144                 p_out_physp = p_port->p_physp;
 145                 /* check that the p_out_physp and the p_req_physp share a pkey */
 146                 if (osm_physp_share_pkey(sa->p_log, p_req_physp, p_out_physp,
 147                                          sa->p_subn->opt.allow_both_pkeys))
 148                         sa_slvl_create(sa, p_out_physp, p_ctxt, 0);
 149         } else {
 150                 if (comp_mask & IB_SLVL_COMPMASK_OUT_PORT)
 151                         out_port_start = out_port_end =
 152                             p_rcvd_rec->out_port_num;
 153                 if (comp_mask & IB_SLVL_COMPMASK_IN_PORT)
 154                         in_port_start = in_port_end = p_rcvd_rec->in_port_num;
 155
 156                 for (out_port_num = out_port_start;
 157                      out_port_num <= out_port_end; out_port_num++) {
 158                         p_out_physp =
 159                             osm_node_get_physp_ptr(p_port->p_node,
 160                                                    out_port_num);
 161                         if (!p_out_physp)
 162                                 continue;
 163
 164                         for (in_port_num = in_port_start;
 165                              in_port_num <= in_port_end; in_port_num++) {
 166 #if 0
 167                                 if (out_port_num && out_port_num == in_port_num)
 168                                         continue;
 169 #endif
 170
 171                                 p_in_physp =
 172                                     osm_node_get_physp_ptr(p_port->p_node,
 173                                                            in_port_num);
 174                                 if (!p_in_physp)
 175                                         continue;
 176
 177                                 /* if the requester and the p_out_physp don't share a pkey -
 178                                    continue */
 179                                 if (!osm_physp_share_pkey(sa->p_log, p_req_physp, p_out_physp,
 180                                                           sa->p_subn->opt.allow_both_pkeys))
 181                                         continue;
 182
 183                                 sa_slvl_create(sa, p_out_physp, p_ctxt,
 184                                                in_port_num);
 185                         }
 186                 }
 187         }
 188         OSM_LOG_EXIT(sa->p_log);
 189 }
 190
 191 static void sa_slvl_by_comp_mask_cb(IN cl_map_item_t * p_map_item, IN void *cxt)
 192 {
 193         const osm_port_t *p_port = (osm_port_t *) p_map_item;
 194         osm_slvl_search_ctxt_t *p_ctxt = cxt;
 195
 196         sa_slvl_by_comp_mask(p_ctxt->sa, p_port, p_ctxt);
 197 }
 198
 199 void osm_slvl_rec_rcv_process(IN void *ctx, IN void *data)
 200 {
 201         osm_sa_t *sa = ctx;
 202         osm_madw_t *p_madw = data;
 203         const ib_sa_mad_t *p_rcvd_mad;
 204         const ib_slvl_table_record_t *p_rcvd_rec;
 205         const osm_port_t *p_port = NULL;
 206         cl_qlist_t rec_list;
 207         osm_slvl_search_ctxt_t context;
 208         ib_api_status_t status = IB_SUCCESS;
 209         ib_net64_t comp_mask;
 210         osm_physp_t *p_req_physp;
 211
 212         CL_ASSERT(sa);
 213
 214         OSM_LOG_ENTER(sa->p_log);
 215
 216         CL_ASSERT(p_madw);
 217
 218         p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw);
 219         p_rcvd_rec =
 220             (ib_slvl_table_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad);
 221         comp_mask = p_rcvd_mad->comp_mask;
 222
 223         CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_SLVL_RECORD);
 224
 225         /* we only support SubnAdmGet and SubnAdmGetTable methods */
 226         if (p_rcvd_mad->method != IB_MAD_METHOD_GET &&
 227             p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) {
 228                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2604: "
 229                         "Unsupported Method (%s) for SL2VLRecord request\n",
 230                         ib_get_sa_method_str(p_rcvd_mad->method));
 231                 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR);
 232                 goto Exit;
 233         }
 234
 235         cl_plock_acquire(sa->p_lock);
 236
 237         /* update the requester physical port */
 238         p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn,
 239                                                 osm_madw_get_mad_addr_ptr
 240                                                 (p_madw));
 241         if (p_req_physp == NULL) {
 242                 cl_plock_release(sa->p_lock);
 243                 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2603: "
 244                         "Cannot find requester physical port\n");
 245                 goto Exit;
 246         }
 247         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 248                 "Requester port GUID 0x%" PRIx64 "\n",
 249                 cl_ntoh64(osm_physp_get_port_guid(p_req_physp)));
 250
 251         cl_qlist_init(&rec_list);
 252
 253         context.p_rcvd_rec = p_rcvd_rec;
 254         context.p_list = &rec_list;
 255         context.comp_mask = p_rcvd_mad->comp_mask;
 256         context.sa = sa;
 257         context.in_port_num = p_rcvd_rec->in_port_num;
 258         context.p_req_physp = p_req_physp;
 259
 260         OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
 261                 "Got Query Lid:%u(%02X), In-Port:0x%02X(%02X), Out-Port:0x%02X(%02X)\n",
 262                 cl_ntoh16(p_rcvd_rec->lid),
 263                 (comp_mask & IB_SLVL_COMPMASK_LID) != 0,
 264                 p_rcvd_rec->in_port_num,
 265                 (comp_mask & IB_SLVL_COMPMASK_IN_PORT) != 0,
 266                 p_rcvd_rec->out_port_num,
 267                 (comp_mask & IB_SLVL_COMPMASK_OUT_PORT) != 0);
 268
 269         /*
 270            If the user specified a LID, it obviously narrows our
 271            work load, since we don't have to search every port
 272          */
 273         if (comp_mask & IB_SLVL_COMPMASK_LID) {
 274                 p_port = osm_get_port_by_lid(sa->p_subn, p_rcvd_rec->lid);
 275                 if (!p_port) {
 276                         status = IB_NOT_FOUND;
 277                         OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2608: "
 278                                 "No port found with LID %u\n",
 279                                 cl_ntoh16(p_rcvd_rec->lid));
 280                 }
 281         }
 282
 283         if (status == IB_SUCCESS) {
 284                 /* if we have a unique port - no need for a port search */
 285                 if (p_port)
 286                         /*  this does the loop on all the port phys ports */
 287                         sa_slvl_by_comp_mask(sa, p_port, &context);
 288                 else
 289                         cl_qmap_apply_func(&sa->p_subn->port_guid_tbl,
 290                                            sa_slvl_by_comp_mask_cb, &context);
 291         }
 292
 293         cl_plock_release(sa->p_lock);
 294
 295         osm_sa_respond(sa, p_madw, sizeof(ib_slvl_table_record_t), &rec_list);
 296
 297 Exit:
 298         OSM_LOG_EXIT(sa->p_log);
 299 }