diff options
| author | Lijun Ou <oulijun@huawei.com> | 2018-09-30 11:00:32 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-10-04 00:21:17 +0200 |
| commit | 157b52a08da68b650a6b5bcaf427d39a5d016a36 (patch) | |
| tree | 7917410455a2fad31b45774ce80238251202feb7 /drivers/infiniband/hw | |
| parent | RDMA/hns: Limit the size of extend sge of sq (diff) | |
| download | linux-157b52a08da68b650a6b5bcaf427d39a5d016a36.tar.xz linux-157b52a08da68b650a6b5bcaf427d39a5d016a36.zip | |
RDMA/hns: Configure ecn field of ip header
In order to compatible with the third party RoCE device, The hardware
modify the set method for the ecn field of ip header in new hip08
version. The high 6bit of tclass be assigned for dscp field of packet.
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 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index d563d2955597..3408fc59d417 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3640,8 +3640,15 @@ static int hns_roce_v2_modify_qp(struct ib_qp *ibqp, V2_QPC_BYTE_24_HOP_LIMIT_M, V2_QPC_BYTE_24_HOP_LIMIT_S, 0); - roce_set_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_TC_M, - V2_QPC_BYTE_24_TC_S, grh->traffic_class); + if (hr_dev->pci_dev->revision == 0x21 && + gid_attr->gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) + roce_set_field(context->byte_24_mtu_tc, + V2_QPC_BYTE_24_TC_M, V2_QPC_BYTE_24_TC_S, + grh->traffic_class >> 2); + else + roce_set_field(context->byte_24_mtu_tc, + V2_QPC_BYTE_24_TC_M, V2_QPC_BYTE_24_TC_S, + grh->traffic_class); roce_set_field(qpc_mask->byte_24_mtu_tc, V2_QPC_BYTE_24_TC_M, V2_QPC_BYTE_24_TC_S, 0); roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_FL_M, |