Commit a13bf78f authored by Longfang Liu's avatar Longfang Liu Committed by Alex Williamson
Browse files

Documentation: add debugfs description for hisi migration 



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: default avatarLongfang Liu <liulongfang@huawei.com>
Reviewed-by: default avatarShameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Link: https://lore.kernel.org/r/20241112073322.54550-5-liulongfang@huawei.com


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent b398f917

Documentation/ABI/testing/debugfs-hisi-migration

0 → 100644
+25 −0
Original line number Diff line number Diff line 
What:		/sys/kernel/debug/vfio/<device>/migration/hisi_acc/dev_data

Date:		Jan 2025

KernelVersion:  6.13

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:		Jan 2025

KernelVersion:  6.13

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:		Jan 2025

KernelVersion:  6.13

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.