diff mbox series

[for-next,1/9] RDMA/hns: Don't modify rq next block addr in HIP09 QPC

Message ID 20240906093444.3571619-2-huangjunxian6@hisilicon.com (mailing list archive)
State Accepted
Headers show
Series RDMA/hns: Bugfixes and one improvement | expand

Commit Message

Junxian Huang Sept. 6, 2024, 9:34 a.m. UTC 
The field 'rq next block addr' in QPC can be updated by driver only
on HIP08. On HIP09 HW updates this field while driver is not allowed.

Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 621b057fb9da..a166b476977f 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -4423,12 +4423,14 @@  static int config_qp_rq_buf(struct hns_roce_dev *hr_dev,
 		     upper_32_bits(to_hr_hw_page_addr(mtts[0])));
 	hr_reg_clear(qpc_mask, QPC_RQ_CUR_BLK_ADDR_H);
 
-	context->rq_nxt_blk_addr = cpu_to_le32(to_hr_hw_page_addr(mtts[1]));
-	qpc_mask->rq_nxt_blk_addr = 0;
-
-	hr_reg_write(context, QPC_RQ_NXT_BLK_ADDR_H,
-		     upper_32_bits(to_hr_hw_page_addr(mtts[1])));
-	hr_reg_clear(qpc_mask, QPC_RQ_NXT_BLK_ADDR_H);
+	if (hr_dev->pci_dev->revision == PCI_REVISION_ID_HIP08) {
+		context->rq_nxt_blk_addr =
+				cpu_to_le32(to_hr_hw_page_addr(mtts[1]));
+		qpc_mask->rq_nxt_blk_addr = 0;
+		hr_reg_write(context, QPC_RQ_NXT_BLK_ADDR_H,
+			     upper_32_bits(to_hr_hw_page_addr(mtts[1])));
+		hr_reg_clear(qpc_mask, QPC_RQ_NXT_BLK_ADDR_H);
+	}
 
 	return 0;
 }