The atomic operation not support to inline. Besides, the
standard atomic operation only support a sge and the sge
place in wqe. This patch mainly ajdust the code.
Fix: 384f881("RDMA/hns: Add atomic support")
Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 31 ++++++++++++++++++++----------
1 file changed, 21 insertions(+), 10 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index f2bf9b5..e3d9f1d 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -467,18 +467,14 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
rc_sq_wqe->rkey =
cpu_to_le32(atomic_wr(wr)->rkey);
rc_sq_wqe->va =
- cpu_to_le32(atomic_wr(wr)->remote_addr);
- wqe += sizeof(struct hns_roce_v2_wqe_data_seg);
- set_atomic_seg(wqe, atomic_wr(wr));
+ cpu_to_le64(atomic_wr(wr)->remote_addr);
break;
case IB_WR_ATOMIC_FETCH_AND_ADD:
hr_op = HNS_ROCE_V2_WQE_OP_ATOM_FETCH_AND_ADD;
rc_sq_wqe->rkey =
cpu_to_le32(atomic_wr(wr)->rkey);
rc_sq_wqe->va =
- cpu_to_le32(atomic_wr(wr)->remote_addr);
- wqe += sizeof(struct hns_roce_v2_wqe_data_seg);
- set_atomic_seg(wqe, atomic_wr(wr));
+ cpu_to_le64(atomic_wr(wr)->remote_addr);
break;
case IB_WR_MASKED_ATOMIC_CMP_AND_SWP:
hr_op =
@@ -497,10 +493,25 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
V2_RC_SEND_WQE_BYTE_4_OPCODE_M,
V2_RC_SEND_WQE_BYTE_4_OPCODE_S, hr_op);
- ret = set_rwqe_data_seg(ibqp, wr, rc_sq_wqe, wqe,
- &sge_ind, bad_wr);
- if (ret)
- goto out;
+ if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP ||
+ wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD) {
+ struct hns_roce_v2_wqe_data_seg *dseg;
+
+ dseg = wqe;
+ set_data_seg_v2(dseg, wr->sg_list);
+ wqe += sizeof(struct hns_roce_v2_wqe_data_seg);
+ set_atomic_seg(wqe, atomic_wr(wr));
+ roce_set_field(rc_sq_wqe->byte_16,
+ V2_RC_SEND_WQE_BYTE_16_SGE_NUM_M,
+ V2_RC_SEND_WQE_BYTE_16_SGE_NUM_S,
+ wr->num_sge);
+ } else {
+ ret = set_rwqe_data_seg(ibqp, wr, rc_sq_wqe,
+ wqe, &sge_ind, bad_wr);
+ if (ret)
+ goto out;
+ }
+
ind++;
} else {
dev_err(dev, "Illegal qp_type(0x%x)\n", ibqp->qp_type);
--
1.9.1
