diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index ae2e8b2..071d733 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -317,7 +317,7 @@
 	idr_for_each(&qpd->devp->qpidr, count_idrs, &count);
 	spin_unlock_irq(&qpd->devp->lock);
 
-	qpd->bufsize = count * 128;
+	qpd->bufsize = count * 180;
 	qpd->buf = vmalloc(qpd->bufsize);
 	if (!qpd->buf) {
 		kfree(qpd);