This patch sends IB_EVENT_QP_LAST_WQE_REACHED event on a QP that is in
error state and associated with an SRQ. This behaviour is incorporated
in flush_qp() which is called when QP transitions to error state.
Supports SRQ drain functionality added by commit 844bc12e6da3 ("IB/core:
add support for draining Shared receive queues")
Signed-off-by: Anumula Murali Mohan Reddy <anumula@xxxxxxxxxxx>
Signed-off-by: Potnuri Bharat Teja <bharat@xxxxxxxxxxx>
---
drivers/infiniband/hw/cxgb4/qp.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 7b5c4522b426..10f61bc16dd5 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -1599,6 +1599,7 @@ static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp,
int count;
int rq_flushed = 0, sq_flushed;
unsigned long flag;
+ struct ib_event ev;
pr_debug("qhp %p rchp %p schp %p\n", qhp, rchp, schp);
@@ -1607,6 +1608,14 @@ static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp,
if (schp != rchp)
spin_lock(&schp->lock);
spin_lock(&qhp->lock);
+ if (qhp->srq) {
+ if (qhp->attr.state == C4IW_QP_STATE_ERROR && qhp->ibqp.event_handler) {
+ ev.device = qhp->ibqp.device;
+ ev.element.qp = &qhp->ibqp;
+ ev.event = IB_EVENT_QP_LAST_WQE_REACHED;
+ qhp->ibqp.event_handler(&ev, qhp->ibqp.qp_context);
+ }
+ }
if (qhp->wq.flushed) {
spin_unlock(&qhp->lock);
--
2.39.3
