linux-kernel - Re: [PATCH v11 4/4] Documentation: add debugfs description for hisi migration

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Message-ID: <f56da6a9-5b4d-fb3e-d96e-bd46991443fd@huawei.com>
Date: Mon, 4 Nov 2024 16:00:11 +0800
From: liulongfang <liulongfang@...wei.com>
To: Alex Williamson <alex.williamson@...hat.com>
CC: <jgg@...dia.com>, <shameerali.kolothum.thodi@...wei.com>,
	<jonathan.cameron@...wei.com>, <kvm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linuxarm@...neuler.org>
Subject: Re: [PATCH v11 4/4] Documentation: add debugfs description for hisi
 migration

On 2024/11/1 6:09, Alex Williamson wrote:
> On Fri, 25 Oct 2024 17:01:43 +0800
> Longfang Liu <liulongfang@...wei.com> wrote:
> 
>> Add a debugfs document description file to help users understand
>> how to use the hisilicon accelerator live migration driver's
>> debugfs.
>>
>> Update the file paths that need to be maintained in MAINTAINERS
>>
>> Signed-off-by: Longfang Liu <liulongfang@...wei.com>
>> Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>
>> ---
>>  .../ABI/testing/debugfs-hisi-migration        | 25 +++++++++++++++++++
>>  1 file changed, 25 insertions(+)
>>  create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration
>>
>> diff --git a/Documentation/ABI/testing/debugfs-hisi-migration b/Documentation/ABI/testing/debugfs-hisi-migration
>> new file mode 100644
>> index 000000000000..89e4fde5ec6a
>> --- /dev/null
>> +++ b/Documentation/ABI/testing/debugfs-hisi-migration
>> @@ -0,0 +1,25 @@
>> +What:		/sys/kernel/debug/vfio/<device>/migration/hisi_acc/dev_data
>> +Date:		Oct 2024
>> +KernelVersion:  6.12
> 
> We're currently targeting v6.13, which is likely Jan 2025.  Thanks,
>

OK!

Thanks.
Longfang.

> Alex
> 
>> +Contact:	Longfang Liu <liulongfang@...wei.com>
>> +Description:	Read the configuration data and some status data
>> +		required for device live migration. These data include device
>> +		status data, queue configuration data, some task configuration
>> +		data and device attribute data. The output format of the data
>> +		is defined by the live migration driver.
>> +
>> +What:		/sys/kernel/debug/vfio/<device>/migration/hisi_acc/migf_data
>> +Date:		Oct 2024
>> +KernelVersion:  6.12
>> +Contact:	Longfang Liu <liulongfang@...wei.com>
>> +Description:	Read the data from the last completed live migration.
>> +		This data includes the same device status data as in "dev_data".
>> +		The migf_data is the dev_data that is migrated.
>> +
>> +What:		/sys/kernel/debug/vfio/<device>/migration/hisi_acc/cmd_state
>> +Date:		Oct 2024
>> +KernelVersion:  6.12
>> +Contact:	Longfang Liu <liulongfang@...wei.com>
>> +Description:	Used to obtain the device command sending and receiving
>> +		channel status. Returns failure or success logs based on the
>> +		results.
> 
> 
> .
>