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[for-next,3/3] RDMA/hns: Bugfix for SCC hem free

Message ID 1554614619-27024-4-git-send-email-oulijun@huawei.com (mailing list archive)
State Accepted
Delegated to: Jason Gunthorpe
Headers show
Series Hip08 fixes | expand

Commit Message

Lijun Ou April 7, 2019, 5:23 a.m. UTC 
From: Yangyang Li <liyangyang20@huawei.com>

The method of hem free for SCC context is different from qp
context.

In the current version, if free SCC hem during the execution of
qp free, there may be smmu error as below:
[  355.879916] arm-smmu-v3 arm-smmu-v3.1.auto: event 0x10 received:
[  355.885922] arm-smmu-v3 arm-smmu-v3.1.auto:  0x00007d0000000010
[  355.891840] arm-smmu-v3 arm-smmu-v3.1.auto:  0x000012000000017c
[  355.897752] arm-smmu-v3 arm-smmu-v3.1.auto:  0x00000000000009e0
[  355.903663] arm-smmu-v3 arm-smmu-v3.1.auto:  0x0000000000000000

As SCC context is still used by hardware after qp free,
we can solve this problem by removing SCC hem free from
hns_roce_qp_free.

Fixes: 6a157f7d1b14 ("RDMA/hns: Add SCC context allocation support for hip08")
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
---
 drivers/infiniband/hw/hns/hns_roce_qp.c | 3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 57c76ea..66cdf62 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -274,9 +274,6 @@  void hns_roce_qp_free(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp)
 	wait_for_completion(&hr_qp->free);
 
 	if ((hr_qp->ibqp.qp_type) != IB_QPT_GSI) {
-		if (hr_dev->caps.sccc_entry_sz)
-			hns_roce_table_put(hr_dev, &qp_table->sccc_table,
-					   hr_qp->qpn);
 		if (hr_dev->caps.trrl_entry_sz)
 			hns_roce_table_put(hr_dev, &qp_table->trrl_table,
 					   hr_qp->qpn);