diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index e436ead..906119f 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -881,7 +881,7 @@
 	/*
 	 * Make actual HW queue 2x to avoid cdix_inc overflows.
 	 */
-	hwentries = entries * 2;
+	hwentries = min(entries * 2, T4_MAX_IQ_SIZE);
 
 	/*
 	 * Make HW queue at least 64 entries so GTS updates aren't too