commit 59f740a6aeb2cde2f79fe0df38262d4c1ef35cd8
author Zach Brown <zach.brown@oracle.com> Tue Aug 03 13:52:47 2010 -0700
committer Andy Grover <andy.grover@oracle.com> Wed Sep 08 18:16:50 2010 -0700
tree e05c12cc5c8892bcca3928deb62121b1ee4cedd0
parent 4518071ac1bcb76c64a55a3fddb39fb3d39add41

RDS/IB: print string constants in more places

This prints the constant identifier for work completion status and rdma
cm event types, like we already do for IB event types.

A core string array helper is added that each string type uses.

Signed-off-by: Zach Brown <zach.brown@oracle.com>

net/rds/rdma_transport.c

diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index 550d348..e6ed10a 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -36,6 +36,34 @@
 
 static struct rdma_cm_id *rds_rdma_listen_id;
 
+static char *rds_cm_event_strings[] = {
+#define RDS_CM_EVENT_STRING(foo) \
+		[RDMA_CM_EVENT_##foo] = __stringify(RDMA_CM_EVENT_##foo)
+	RDS_CM_EVENT_STRING(ADDR_RESOLVED),
+	RDS_CM_EVENT_STRING(ADDR_ERROR),
+	RDS_CM_EVENT_STRING(ROUTE_RESOLVED),
+	RDS_CM_EVENT_STRING(ROUTE_ERROR),
+	RDS_CM_EVENT_STRING(CONNECT_REQUEST),
+	RDS_CM_EVENT_STRING(CONNECT_RESPONSE),
+	RDS_CM_EVENT_STRING(CONNECT_ERROR),
+	RDS_CM_EVENT_STRING(UNREACHABLE),
+	RDS_CM_EVENT_STRING(REJECTED),
+	RDS_CM_EVENT_STRING(ESTABLISHED),
+	RDS_CM_EVENT_STRING(DISCONNECTED),
+	RDS_CM_EVENT_STRING(DEVICE_REMOVAL),
+	RDS_CM_EVENT_STRING(MULTICAST_JOIN),
+	RDS_CM_EVENT_STRING(MULTICAST_ERROR),
+	RDS_CM_EVENT_STRING(ADDR_CHANGE),
+	RDS_CM_EVENT_STRING(TIMEWAIT_EXIT),
+#undef RDS_CM_EVENT_STRING
+};
+
+static char *rds_cm_event_str(enum rdma_cm_event_type type)
+{
+	return rds_str_array(rds_cm_event_strings,
+			     ARRAY_SIZE(rds_cm_event_strings), type);
+};
+
 int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id,
 			      struct rdma_cm_event *event)
 {
@@ -44,8 +72,8 @@
 	struct rds_transport *trans;
 	int ret = 0;
 
-	rdsdebug("conn %p id %p handling event %u\n", conn, cm_id,
-		 event->event);
+	rdsdebug("conn %p id %p handling event %u (%s)\n", conn, cm_id,
+		 event->event, rds_cm_event_str(event->event));
 
 	if (cm_id->device->node_type == RDMA_NODE_RNIC)
 		trans = &rds_iw_transport;
@@ -109,7 +137,8 @@
 
 	default:
 		/* things like device disconnect? */
-		printk(KERN_ERR "RDS: unknown event %u!\n", event->event);
+		printk(KERN_ERR "RDS: unknown event %u (%s)!\n",
+		       event->event, rds_cm_event_str(event->event));
 		break;
 	}
 
@@ -117,7 +146,8 @@
 	if (conn)
 		mutex_unlock(&conn->c_cm_lock);
 
-	rdsdebug("id %p event %u handling ret %d\n", cm_id, event->event, ret);
+	rdsdebug("id %p event %u (%s) handling ret %d\n", cm_id, event->event,
+		 rds_cm_event_str(event->event), ret);
 
 	return ret;
 }