[PATCH 4.14 042/217] IB/rxe: Fix missing completion for mem_reg work requests

From: Greg Kroah-Hartman
Date: Thu Aug 23 2018 - 04:22:24 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Vijay Immanuel <vijayi@xxxxxxxxxxxxxxxxx>

[ Upstream commit 375dc53d032fc11e98036b5f228ad13f7c5933f5 ]

Run the completer task to post a work completion after processing
a memory registration or invalidate work request. This covers the
case where the memory registration or invalidate was the last work
request posted to the qp.

Signed-off-by: Vijay Immanuel <vijayi@xxxxxxxxxxxxxxxxx>
Reviewed-by: Yonatan Cohen <yonatanc@xxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/sw/rxe/rxe_req.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -645,6 +645,9 @@ next_wqe:
} else {
goto exit;
}
+ if ((wqe->wr.send_flags & IB_SEND_SIGNALED) ||
+ qp->sq_sig_type == IB_SIGNAL_ALL_WR)
+ rxe_run_task(&qp->comp.task, 1);
qp->req.wqe_index = next_index(qp->sq.queue,
qp->req.wqe_index);
goto next_wqe;