linux-kernel - [RFC PATCH rdma-next 07/10] RDMA/rxe: Set BTH's SE to zero for FLUSH packet

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Date:   Tue, 28 Dec 2021 16:07:14 +0800
From:   Li Zhijian <lizhijian@...fujitsu.com>
To:     <linux-rdma@...r.kernel.org>, <zyjzyj2000@...il.com>,
        <jgg@...pe.ca>, <aharonl@...dia.com>, <leon@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <mbloch@...dia.com>,
        <liweihang@...wei.com>, <liangwenpeng@...wei.com>,
        <yangx.jy@...fujitsu.com>, <rpearsonhpe@...il.com>,
        <y-goto@...itsu.com>, Li Zhijian <lizhijian@...fujitsu.com>
Subject: [RFC PATCH rdma-next 07/10] RDMA/rxe: Set BTH's SE to zero for FLUSH packet

The SPEC said:
oA19-6: FLUSH BTH header field solicited event (SE) indication shall be
set to zero.

Signed-off-by: Li Zhijian <lizhijian@...fujitsu.com>
---
 drivers/infiniband/sw/rxe/rxe_req.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
index a3e9351873e2..082c5f76f29b 100644
--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -401,7 +401,9 @@ static struct sk_buff *init_req_packet(struct rxe_qp *qp,
 			(pkt->mask & RXE_END_MASK) &&
 			((pkt->mask & (RXE_SEND_MASK)) ||
 			(pkt->mask & (RXE_WRITE_MASK | RXE_IMMDT_MASK)) ==
-			(RXE_WRITE_MASK | RXE_IMMDT_MASK));
+			(RXE_WRITE_MASK | RXE_IMMDT_MASK)) &&
+			/* oA19-6: always set SE to zero */
+			!(pkt->mask & RXE_FETH_MASK);
 
 	qp_num = (pkt->mask & RXE_DETH_MASK) ? ibwr->wr.ud.remote_qpn :
 					 qp->attr.dest_qp_num;
-- 
2.31.1