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;
}
static int ucast_dor_build_lfts(void *context)
{
osm_ucast_mgr_t *mgr = context;
int ret;
mgr->is_dor = 1;
ret = ucast_mgr_build_lfts(mgr);
mgr->is_dor = 0;
return ret;
}
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_lfts(void *context)
{
return ucast_mgr_build_lfts(context);
}
