static int ucast_mgr_route(struct osm_routing_engine *r, osm_opensm_t *osm)
{
int ret;
OSM_LOG(&osm->log, OSM_LOG_VERBOSE,
"building routing with \'%s\' routing algorithm...\n", r->name);
if (!r->build_lid_matrices ||
(ret = r->build_lid_matrices(r->context)) > 0)
ret = osm_ucast_mgr_build_lid_matrices(&osm->sm.ucast_mgr);
if (ret < 0) {
OSM_LOG(&osm->log, OSM_LOG_ERROR,
"%s: cannot build lid matrices.\n", r->name);
return ret;
}
if (!r->ucast_build_fwd_tables ||
(ret = r->ucast_build_fwd_tables(r->context)) > 0)
ret = ucast_mgr_build_lfts(&osm->sm.ucast_mgr);
if (ret < 0) {
OSM_LOG(&osm->log, OSM_LOG_ERROR,
"%s: cannot build fwd tables.\n", r->name);
return ret;
}
osm->routing_engine_used = osm_routing_engine_type(r->name);
return 0;
}
int osm_ucast_mgr_process(IN osm_ucast_mgr_t * const p_mgr)
{
osm_opensm_t *p_osm;
struct osm_routing_engine *p_routing_eng;
cl_qmap_t *p_sw_guid_tbl;
OSM_LOG_ENTER(p_mgr->p_log);
p_sw_guid_tbl = &p_mgr->p_subn->sw_guid_tbl;
p_osm = p_mgr->p_subn->p_osm;
p_routing_eng = p_osm->routing_engine_list;
CL_PLOCK_EXCL_ACQUIRE(p_mgr->p_lock);
/*
If there are no switches in the subnet, we are done.
*/
if (cl_qmap_count(p_sw_guid_tbl) == 0 ||
ucast_mgr_setup_all_switches(p_mgr->p_subn) < 0)
goto Exit;
p_osm->routing_engine_used = OSM_ROUTING_ENGINE_TYPE_NONE;
while (p_routing_eng) {
if (!ucast_mgr_route(p_routing_eng, p_osm))
break;
p_routing_eng = p_routing_eng->next;
}
if (p_osm->routing_engine_used == OSM_ROUTING_ENGINE_TYPE_NONE) {
/* If configured routing algorithm failed, use default MinHop */
osm_ucast_mgr_build_lid_matrices(p_mgr);
ucast_mgr_build_lfts(p_mgr);
p_osm->routing_engine_used = OSM_ROUTING_ENGINE_TYPE_MINHOP;
}
OSM_LOG(p_mgr->p_log, OSM_LOG_INFO,
"%s tables configured on all switches\n",
osm_routing_engine_type_str(p_osm->routing_engine_used));
if (p_mgr->p_subn->opt.use_ucast_cache)
p_mgr->cache_valid = TRUE;
Exit:
CL_PLOCK_RELEASE(p_mgr->p_lock);
OSM_LOG_EXIT(p_mgr->p_log);
return 0;
}
static int ucast_mgr_route(struct osm_routing_engine *r, osm_opensm_t * osm)
{
int ret;
OSM_LOG(&osm->log, OSM_LOG_VERBOSE,
"building routing with \'%s\' routing algorithm...\n", r->name);
/* Set the before each lft build to keep the routes in place between sweeps */
if (osm->subn.opt.scatter_ports)
srandom(osm->subn.opt.scatter_ports);
if (!r->build_lid_matrices ||
(ret = r->build_lid_matrices(r->context)) > 0)
ret = osm_ucast_mgr_build_lid_matrices(&osm->sm.ucast_mgr);
if (ret < 0) {
OSM_LOG(&osm->log, OSM_LOG_ERROR,
"%s: cannot build lid matrices\n", r->name);
return ret;
}
if (!r->ucast_build_fwd_tables ||
(ret = r->ucast_build_fwd_tables(r->context)) > 0)
ret = ucast_mgr_build_lfts(&osm->sm.ucast_mgr);
if (ret < 0) {
OSM_LOG(&osm->log, OSM_LOG_ERROR,
"%s: cannot build fwd tables\n", r->name);
return ret;
}
osm->routing_engine_used = r;
osm_ucast_mgr_set_fwd_tables(&osm->sm.ucast_mgr);
return 0;
}
static int ucast_build_lid_matrices(void *context)
{
return osm_ucast_mgr_build_lid_matrices(context);
}
/* UPDN callback function */
static int updn_lid_matrices(void *ctx)
{
updn_t *p_updn = ctx;
cl_map_item_t *item;
osm_switch_t *p_sw;
int ret = 0;
OSM_LOG_ENTER(&p_updn->p_osm->log);
for (item = cl_qmap_head(&p_updn->p_osm->subn.sw_guid_tbl);
item != cl_qmap_end(&p_updn->p_osm->subn.sw_guid_tbl);
item = cl_qmap_next(item)) {
p_sw = (osm_switch_t *)item;
p_sw->priv = create_updn_node(p_sw);
if (!p_sw->priv) {
OSM_LOG(&(p_updn->p_osm->log), OSM_LOG_ERROR, "ERR AA0C: "
"cannot create updn node\n");
OSM_LOG_EXIT(&p_updn->p_osm->log);
return -1;
}
}
/* First setup root nodes */
p_updn->num_roots = 0;
if (p_updn->p_osm->subn.opt.root_guid_file) {
OSM_LOG(&p_updn->p_osm->log, OSM_LOG_DEBUG,
"UPDN - Fetching root nodes from file \'%s\'\n",
p_updn->p_osm->subn.opt.root_guid_file);
ret = parse_node_map(p_updn->p_osm->subn.opt.root_guid_file,
rank_root_node, p_updn);
if (ret) {
OSM_LOG(&p_updn->p_osm->log, OSM_LOG_ERROR, "ERR AA02: "
"cannot parse root guids file \'%s\'\n",
p_updn->p_osm->subn.opt.root_guid_file);
osm_ucast_mgr_build_lid_matrices(&p_updn->p_osm->sm.ucast_mgr);
updn_find_root_nodes_by_min_hop(p_updn);
} else if (p_updn->p_osm->subn.opt.connect_roots &&
p_updn->num_roots > 1)
osm_ucast_mgr_build_lid_matrices(&p_updn->p_osm->sm.ucast_mgr);
} else {
osm_ucast_mgr_build_lid_matrices(&p_updn->p_osm->sm.ucast_mgr);
updn_find_root_nodes_by_min_hop(p_updn);
}
if (p_updn->p_osm->subn.opt.ids_guid_file) {
OSM_LOG(&p_updn->p_osm->log, OSM_LOG_DEBUG,
"UPDN - update node ids from file \'%s\'\n",
p_updn->p_osm->subn.opt.ids_guid_file);
ret = parse_node_map(p_updn->p_osm->subn.opt.ids_guid_file,
update_id, p_updn->p_osm);
if (ret)
OSM_LOG(&p_updn->p_osm->log, OSM_LOG_ERROR, "ERR AA03: "
"cannot parse node ids file \'%s\'\n",
p_updn->p_osm->subn.opt.ids_guid_file);
}
/* Only if there are assigned root nodes do the algorithm, otherwise perform do nothing */
if (p_updn->num_roots) {
OSM_LOG(&p_updn->p_osm->log, OSM_LOG_DEBUG,
"activating UPDN algorithm\n");
ret = updn_build_lid_matrices(p_updn);
} else {
OSM_LOG(&p_updn->p_osm->log, OSM_LOG_INFO,
"disabling UPDN algorithm, no root nodes were found\n");
ret = -1;
}
if (OSM_LOG_IS_ACTIVE_V2(&p_updn->p_osm->log, OSM_LOG_ROUTING))
osm_dump_qmap_to_file(p_updn->p_osm, "opensm-updn-roots.dump",
&p_updn->p_osm->subn.sw_guid_tbl,
dump_roots, NULL);
for (item = cl_qmap_head(&p_updn->p_osm->subn.sw_guid_tbl);
item != cl_qmap_end(&p_updn->p_osm->subn.sw_guid_tbl);
item = cl_qmap_next(item)) {
p_sw = (osm_switch_t *) item;
delete_updn_node(p_sw->priv);
}
OSM_LOG_EXIT(&p_updn->p_osm->log);
return ret;
}
