Previously, if user space keeps sending abnormal wqe, queue.prod will keep increasing while queue.index doesn't. Once queue.index==queue.prod in next round, req_next_wqe() will treat queue as empty. In such case, no new completion would be generated. Update wqe_index for each wqe completion so that req_next_wqe() can get next wqe properly. Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- drivers/infiniband/sw/rxe/rxe_req.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c index 9d98237389cf..4ffc4ebd6e28 100644 --- a/drivers/infiniband/sw/rxe/rxe_req.c +++ b/drivers/infiniband/sw/rxe/rxe_req.c @@ -759,6 +759,8 @@ int rxe_requester(void *arg) if (ah) rxe_put(ah); err: + /* update wqe_index for each wqe completion */ + qp->req.wqe_index = queue_next_index(qp->sq.queue, qp->req.wqe_index); wqe->state = wqe_state_error; __rxe_do_task(&qp->comp.task); -- 2.31.1
