Commit ae720bdb authored by Li Zhijian's avatar Li Zhijian Committed by Jason Gunthorpe
Browse files

RDMA/rxe: Generate error completion for error requester QP state 

As per IBTA specification, all subsequent WQEs while QP is in error state
should be completed with a flush error.

Here we check QP_STATE_ERROR after req_next_wqe() so that rxe_completer()
has chance to be called where it will set CQ state to FLUSH ERROR and the
completion can associate with its WQE.

Link: https://lore.kernel.org/r/1658307368-1851-3-git-send-email-lizhijian@fujitsu.com


Signed-off-by: default avatarLi Zhijian <lizhijian@fujitsu.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent dea4266f

drivers/infiniband/sw/rxe/rxe_req.c

+12 −1
Original line number Diff line number Diff line
@@ -635,9 +635,20 @@ int rxe_requester(void *arg) 
	if (!rxe_get(qp))

		return -EAGAIN;



	if (unlikely(!qp->valid || qp->req.state == QP_STATE_ERROR))

	if (unlikely(!qp->valid))

		goto exit;



	if (unlikely(qp->req.state == QP_STATE_ERROR)) {

		wqe = req_next_wqe(qp);

		if (wqe)

			/*

			 * Generate an error completion for error qp state

			 */

			goto err;

		else

			goto exit;

	}



	if (unlikely(qp->req.state == QP_STATE_RESET)) {

		qp->req.wqe_index = queue_get_consumer(q,

						QUEUE_TYPE_FROM_CLIENT);