Re: [PATCH for-next] RDMA/hns: Support DSCP

[Leon Romanovsky]

On Fri, Mar 15, 2024 at 05:35:51PM +0800, Junxian Huang wrote:
> Add support for DSCP configuration. For DSCP, get dscp-prio mapping
> via hns3 nic driver api .get_dscp_prio() and fill the SL (in WQE for
> UD or in QPC for RC) with the priority value. The prio-tc mapping is
> configured to HW by hns3 nic driver. HW will select a corresponding
> TC according to SL and the prio-tc mapping.
> 
> Signed-off-by: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
> ---
>  drivers/infiniband/hw/hns/hns_roce_ah.c     | 32 +++++---
>  drivers/infiniband/hw/hns/hns_roce_device.h |  6 ++
>  drivers/infiniband/hw/hns/hns_roce_hw_v2.c  | 86 ++++++++++++++++-----
>  drivers/infiniband/hw/hns/hns_roce_qp.c     | 13 ++++
>  include/uapi/rdma/hns-abi.h                 |  9 ++-
>  5 files changed, 117 insertions(+), 29 deletions(-)

1. What is TC mode?
2. Did you post rdma-core PR?

Thanks