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Message-ID: <9bfc0185-dbd3-3511-23f2-983312c04f39@hisilicon.com>
Date: Tue, 2 Apr 2024 10:55:41 +0800
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Subject: Re: [PATCH for-next] RDMA/hns: Support DSCP
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To: Leon Romanovsky <leon@kernel.org>
CC: <jgg@ziepe.ca>, <linux-rdma@vger.kernel.org>, <linuxarm@huawei.com>,
	<linux-kernel@vger.kernel.org>
References: <20240315093551.1650088-1-huangjunxian6@hisilicon.com>
 <20240401114853.GA73174@unreal>
 <1f786e1b-e8ff-1d6f-7c4d-89724eda6712@hisilicon.com>
 <20240401181204.GC11187@unreal>
From: Junxian Huang <huangjunxian6@hisilicon.com>
In-Reply-To: <20240401181204.GC11187@unreal>
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On 2024/4/2 2:12, Leon Romanovsky wrote:
> On Mon, Apr 01, 2024 at 09:25:39PM +0800, Junxian Huang wrote:
>>
>>
>> On 2024/4/1 19:48, Leon Romanovsky wrote:
>>> 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@hisilicon.com>
>>>> ---
>>>>  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?
>>
>> TC mode indicates whether the HW is configured as DSCP mode or VLAN priority
>> mode currently.
>>
>>> 2. Did you post rdma-core PR?
>>
>> Not yet. I was meant to wait until this patch is applied. Should I post it
>> right now?
> 
> Yes, for any UAPI changes, we require to have rdma-core PR.
> 
> Thanks
> 

PR has been posted.

Thanks,
Junxian

>>
>> Junxian
>>
>>>
>>> Thanks