linux-kernel - Re: [PATCH v10 3/5] hisi_acc_vfio_pci: register debugfs for hisilicon migration driver

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Message-ID: <fa3d47a1-0af5-f8ba-d14c-8d9a756e2c23@huawei.com>
Date:   Tue, 16 May 2023 17:40:36 +0800
From:   liulongfang <liulongfang@...wei.com>
To:     Jason Gunthorpe <jgg@...dia.com>
CC:     <alex.williamson@...hat.com>,
        <shameerali.kolothum.thodi@...wei.com>,
        <jonathan.cameron@...wei.com>, <cohuck@...hat.com>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...neuler.org>
Subject: Re: [PATCH v10 3/5] hisi_acc_vfio_pci: register debugfs for hisilicon
 migration driver

On 2023/4/21 22:31, Jason Gunthorpe wrote:
> On Fri, Apr 21, 2023 at 11:32:47AM +0800, liulongfang wrote:
> 
>> Thank you for your suggestion, but the current debugfs method can already
>> meet the functional requirements of verification testing and
>> problem location.
> 
> To be clear, I'm against adding selftest code in this manner. We have
> many frameworks for kernel teesting, please pick one and integrate
> with it.
> 

Hi, Jason:
The purpose of this hisi_acc_vf_debug_restore function is to obtain the
migration status data of the migration device. It is a debug operation.
Just to obtain this status data, user need to complete the few steps
of live migration.
Therefore, it is a debug function here, not a self-test function.

Thanks,
Longfang.
> Jason
> .
>