[v2,15/15] opensm: Cause status of unicast routing attempt to propogate to callers of osm_ucast_mgr_process().

Commit Message

Jim Schutt March 10, 2010, 6:06 p.m. UTC

None

Patch

diff --git a/opensm/opensm/osm_state_mgr.c b/opensm/opensm/osm_state_mgr.c
index 96ad348..e666034 100644
--- a/opensm/opensm/osm_state_mgr.c
+++ b/opensm/opensm/osm_state_mgr.c
@@ -1140,7 +1140,11 @@  static void do_sweep(osm_sm_t * sm)
 		/* Re-program the switches fully */
 		sm->p_subn->ignore_existing_lfts = TRUE;
 
-		osm_ucast_mgr_process(&sm->ucast_mgr);
+		if (osm_ucast_mgr_process(&sm->ucast_mgr)) {
+			OSM_LOG_MSG_BOX(sm->p_log, OSM_LOG_VERBOSE,
+					"REROUTE FAILED");
+			return;
+		}
 		osm_qos_setup(sm->p_subn->p_osm);
 
 		/* Reset flag */
@@ -1299,12 +1303,14 @@  repeat_discovery:
 			"LID ASSIGNMENT COMPLETE - STARTING SWITCH TABLE CONFIG");
 
 	/*
-	 * Proceed with unicast forwarding table configuration.
+	 * Proceed with unicast forwarding table configuration; repeat
+	 * if unicast routing fails.
 	 */
 
 	if (!sm->ucast_mgr.cache_valid ||
 	    osm_ucast_cache_process(&sm->ucast_mgr))
-		osm_ucast_mgr_process(&sm->ucast_mgr);
+		if (osm_ucast_mgr_process(&sm->ucast_mgr))
+			goto repeat_discovery;
 
 	osm_qos_setup(sm->p_subn->p_osm);
 
diff --git a/opensm/opensm/osm_ucast_mgr.c b/opensm/opensm/osm_ucast_mgr.c
index fbc9244..8ea2e52 100644
--- a/opensm/opensm/osm_ucast_mgr.c
+++ b/opensm/opensm/osm_ucast_mgr.c
@@ -955,6 +955,7 @@  int osm_ucast_mgr_process(IN osm_ucast_mgr_t * p_mgr)
 	osm_opensm_t *p_osm;
 	struct osm_routing_engine *p_routing_eng;
 	cl_qmap_t *p_sw_guid_tbl;
+	int failed = 0;
 
 	OSM_LOG_ENTER(p_mgr->p_log);
 
@@ -973,7 +974,8 @@  int osm_ucast_mgr_process(IN osm_ucast_mgr_t * p_mgr)
 
 	p_osm->routing_engine_used = NULL;
 	while (p_routing_eng) {
-		if (!ucast_mgr_route(p_routing_eng, p_osm))
+		failed = ucast_mgr_route(p_routing_eng, p_osm);
+		if (!failed)
 			break;
 		p_routing_eng = p_routing_eng->next;
 	}
@@ -984,9 +986,11 @@  int osm_ucast_mgr_process(IN osm_ucast_mgr_t * p_mgr)
 		struct osm_routing_engine *r = p_osm->default_routing_engine;
 
 		r->build_lid_matrices(r->context);
-		r->ucast_build_fwd_tables(r->context);
-		p_osm->routing_engine_used = r;
-		osm_ucast_mgr_set_fwd_tables(p_mgr);
+		failed = r->ucast_build_fwd_tables(r->context);
+		if (!failed) {
+			p_osm->routing_engine_used = r;
+			osm_ucast_mgr_set_fwd_tables(p_mgr);
+		}
 	}
 
 	if (p_osm->routing_engine_used) {
@@ -1006,7 +1010,7 @@  int osm_ucast_mgr_process(IN osm_ucast_mgr_t * p_mgr)
 Exit:
 	CL_PLOCK_RELEASE(p_mgr->p_lock);
 	OSM_LOG_EXIT(p_mgr->p_log);
-	return 0;
+	return failed;
 }
 
 static int ucast_build_lid_matrices(void *context)