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Date: Tue, 8 Jul 2025 16:12:09 +0300
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Subject: Re: [PATCH rdma-next 7/8] IB: Extend UVERBS_METHOD_REG_MR to get DMAH
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Junxian Huang <huangjunxian6@hisilicon.com>,
 Leon Romanovsky <leon@kernel.org>, Yishai Hadas <yishaih@nvidia.com>,
 Bernard Metzler <bmt@zurich.ibm.com>, Bryan Tan <bryan-bt.tan@broadcom.com>,
 Chengchang Tang <tangchengchang@huawei.com>,
 Cheng Xu <chengyou@linux.alibaba.com>, Christian Benvenuti
 <benve@cisco.com>,
 Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>,
 Edward Srouji <edwards@nvidia.com>, Kai Shen <kaishen@linux.alibaba.com>,
 Kalesh AP <kalesh-anakkur.purayil@broadcom.com>,
 Konstantin Taranov <kotaranov@microsoft.com>, linux-rdma@vger.kernel.org,
 Long Li <longli@microsoft.com>, Michael Margolin <mrgolin@amazon.com>,
 Michal Kalderon <mkalderon@marvell.com>,
 Mustafa Ismail <mustafa.ismail@intel.com>,
 Nelson Escobar <neescoba@cisco.com>, Potnuri Bharat Teja
 <bharat@chelsio.com>, Selvin Xavier <selvin.xavier@broadcom.com>,
 Tatyana Nikolova <tatyana.e.nikolova@intel.com>,
 Vishnu Dasa <vishnu.dasa@broadcom.com>, Zhu Yanjun <zyjzyj2000@gmail.com>
References: <cover.1751907231.git.leon@kernel.org>
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 <4e151293-76f5-b44d-5045-d699e16a316d@hisilicon.com>
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 <20250708122943.GW1410929@nvidia.com>
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From: Gal Pressman <gal.pressman@linux.dev>
In-Reply-To: <20250708122943.GW1410929@nvidia.com>
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On 08/07/2025 15:29, Jason Gunthorpe wrote:
> On Tue, Jul 08, 2025 at 09:03:12AM +0300, Gal Pressman wrote:
>> On 08/07/2025 5:27, Junxian Huang wrote:
>>> Could you change hns part as below? We have an error counter in the err_out label.
>>
>> Same for EFA.
> 
> Yuk, why?
> 
> If we want to count system call failures it should not be done in
> drivers.

Why is this check different than others?

EFA counts failures from incompatible udata/abi, or even
ib_copy_from_data() errors, isn't it similar?