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Message-ID: <20221126102911.2921820-3-xuhaoyue1@hisilicon.com>
Date:   Sat, 26 Nov 2022 18:29:07 +0800
From:   Haoyue Xu <xuhaoyue1@...ilicon.com>
To:     <jgg@...dia.com>, <leon@...nel.org>
CC:     <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <xuhaoyue1@...ilicon.com>
Subject: [PATCH for-next 2/6] RDMA/hns: Fix AH attr queried by query_qp

From: Chengchang Tang <tangchengchang@...wei.com>

The queried AH attr is invalid. This patch fix it.

This problem is found by rdma-core test test_mr_rereg_pd

ERROR: test_mr_rereg_pd (tests.test_mr.MRTest)
Test that cover rereg MR's PD with this flow:
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./tests/test_mr.py", line 157, in test_mr_rereg_pd
    self.restate_qps()
  File "./tests/test_mr.py", line 113, in restate_qps
    self.server.qp.to_rts(self.server_qp_attr)
  File "qp.pyx", line 1137, in pyverbs.qp.QP.to_rts
  File "qp.pyx", line 1123, in pyverbs.qp.QP.to_rtr
pyverbs.pyverbs_error.PyverbsRDMAError: Failed to modify QP state to RTR.
Errno: 22, Invalid argument

Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Signed-off-by: Chengchang Tang <tangchengchang@...wei.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 93c677239686..a8f8c790d31d 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5470,6 +5470,8 @@ static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
 
 		rdma_ah_set_sl(&qp_attr->ah_attr,
 			       hr_reg_read(&context, QPC_SL));
+		rdma_ah_set_port_num(&qp_attr->ah_attr, hr_qp->port + 1);
+		rdma_ah_set_ah_flags(&qp_attr->ah_attr, IB_AH_GRH);
 		grh->flow_label = hr_reg_read(&context, QPC_FL);
 		grh->sgid_index = hr_reg_read(&context, QPC_GMV_IDX);
 		grh->hop_limit = hr_reg_read(&context, QPC_HOPLIMIT);
-- 
2.30.0

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