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