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

liulongfang
2024-11-04T08:00:27Z

On 2024/11/1 6:09, Alex Williamson wrote:
> On Fri, 25 Oct 2024 17:01:43 +0800
> Longfang Liu <liulongfang@huawei.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@huawei.com>
>> Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.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@huawei.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@huawei.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@huawei.com>
>> +Description: Used to obtain the device command sending and receiving
>> + channel status. Returns failure or success logs based on the
>> + results.
>
>
> .
>