IB/ipath: Implement IB_EVENT_QP_LAST_WQE_REACHED

This patch implements the IB_EVENT_QP_LAST_WQE_REACHED event which is
needed by ib_ipoib to destroy the QP when used in connected mode.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 53259daeb4f8..5c29b2bfea17 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -1497,11 +1497,21 @@ send_ack:
 static void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err)
 {
         unsigned long flags;
+        int lastwqe;
 
         spin_lock_irqsave(&qp->s_lock, flags);
         qp->state = IB_QPS_ERR;
-        ipath_error_qp(qp, err);
+        lastwqe = ipath_error_qp(qp, err);
         spin_unlock_irqrestore(&qp->s_lock, flags);
+
+        if (lastwqe) {
+                struct ib_event ev;
+
+                ev.device = qp->ibqp.device;
+                ev.element.qp = &qp->ibqp;
+                ev.event = IB_EVENT_QP_LAST_WQE_REACHED;
+                qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);
+        }
 }
 
 static inline void ipath_update_ack_queue(struct ipath_qp *qp, unsigned n)