diff options
| author | Lijun Ou <oulijun@huawei.com> | 2018-09-30 11:00:38 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-10-04 00:21:18 +0200 |
| commit | d9581bf358c0578600940fc8d1f3b8f069870225 (patch) | |
| tree | 6dc76cb4c81a81cdd0b601479ad7f1777a7182af /drivers/infiniband/hw | |
| parent | RDMA/hns: Add vlan enable bit for hip08 (diff) | |
| download | linux-d9581bf358c0578600940fc8d1f3b8f069870225.tar.xz linux-d9581bf358c0578600940fc8d1f3b8f069870225.zip | |
RDMA/hns: Bugfix for atomic operation
The atomic operation not supported inline. Besides, the standard atomic
operation only support a sge and the sge is placed in the wqe.
Fix: 384f881("RDMA/hns: Add atomic support")
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 31 |
1 files 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 f2bf9b5c5faf..e3d9f1de8899 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); |