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RDMA/hns: Don't modify rq next block addr in HIP09 QPC

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[ Upstream commit 6928d264e328e0cb5ee7663003a6e46e4cba0a7e ]

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: 926a01dc00 ("RDMA/hns: Add QP operations support for hip08 SoC")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20240906093444.3571619-2-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Junxian Huang
2024-09-06 17:34:36 +08:00
committed by Greg Kroah-Hartman
parent 92434724a1
commit 35932d8624
1 changed files with 8 additions and 6 deletions
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14
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@@ -4572,12 +4572,14 @@ 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;
}