Re: [PATCH for-next 0/3] RDMA/hns: Add more debugging information for rdma-tool

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On 2023/8/19 19:32, Leon Romanovsky wrote:
> On Wed, Aug 16, 2023 at 05:18:09PM +0800, Junxian Huang wrote:
>> 1. #1: The first patch supports dumping QP/CQ/MR context entirely in raw
>>        data with rdma-tool.
>>
>> 2. #2: The second patch supports query of HW stats with rdma-tool.
>>
>> 3. #3: The last patch supports query of SW stats with rdma-tool.
>>
>> Chengchang Tang (3):
>>   RDMA/hns: Dump whole QP/CQ/MR resource in raw
>>   RDMA/hns: Support hns HW stats
> 
> These two patches generate static analyzer warnings.
> ➜  kernel git:(wip/leon-for-next) mkt ci --rev 0a68261bbbe5
> 0a68261bbbe5 (HEAD -> build) RDMA/hns: Dump whole QP/CQ/MR resource in raw
> WARNING: 'informations' may be misspelled - perhaps 'information'?
> #7:
> rdma-tool, but these informations are not enough. It is very
>                      ^^^^^^^^^^^^
> ➜  kernel git:(wip/leon-for-next) mkt ci
> 5a87279591a1 (HEAD -> build) RDMA/hns: Support hns HW stats
> drivers/infiniband/hw/hns/hns_roce_hw_v2.c:1651:35: warning: restricted __le16 degrades to integer
> 

OK,I'll fix them in V2.

>>   RDMA/hns: Support hns SW stats
> 
> This is not support SW stats, but actually implementation of SW
> statistics which you exposed through rdmatool. That tool is

Yes,

> not right place for such information and debugfs will be better
> fit.
> 
> Thanks
> 

but from what I have seen, efa and bnxt_re drivers also use rdmatool
to expose SW statisics.

And could you please explain why rdmatool is not suitable for this?

Junxian

>>
>>  drivers/infiniband/hw/hns/hns_roce_ah.c       |   6 +-
>>  drivers/infiniband/hw/hns/hns_roce_cmd.c      |  19 ++-
>>  drivers/infiniband/hw/hns/hns_roce_cq.c       |  15 +-
>>  drivers/infiniband/hw/hns/hns_roce_device.h   |  50 ++++++
>>  drivers/infiniband/hw/hns/hns_roce_hw_v2.c    |  59 +++++++
>>  drivers/infiniband/hw/hns/hns_roce_hw_v2.h    |   1 +
>>  drivers/infiniband/hw/hns/hns_roce_main.c     | 152 +++++++++++++++++-
>>  drivers/infiniband/hw/hns/hns_roce_mr.c       |  26 ++-
>>  drivers/infiniband/hw/hns/hns_roce_pd.c       |  10 +-
>>  drivers/infiniband/hw/hns/hns_roce_qp.c       |   8 +-
>>  drivers/infiniband/hw/hns/hns_roce_restrack.c |  75 +--------
>>  drivers/infiniband/hw/hns/hns_roce_srq.c      |   6 +-
>>  12 files changed, 325 insertions(+), 102 deletions(-)
>>
>> --
>> 2.30.0
>>



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