> -----Original Message----- > From: liulongfang <liulongfang@xxxxxxxxxx> > Sent: Tuesday, July 30, 2024 1:15 PM > To: alex.williamson@xxxxxxxxxx; jgg@xxxxxxxxxx; Shameerali Kolothum > Thodi <shameerali.kolothum.thodi@xxxxxxxxxx>; Jonathan Cameron > <jonathan.cameron@xxxxxxxxxx> > Cc: kvm@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; > linuxarm@xxxxxxxxxxxxx; liulongfang <liulongfang@xxxxxxxxxx> > Subject: [PATCH v7 4/4] 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: Longfang Liu <liulongfang@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..053f3ebba9b1 > --- /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: Jul 2024 > +KernelVersion: 6.11 > +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: Jul 2024 > +KernelVersion: 6.11 > +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". > + And some device status data after the migration is > completed. Actually what info is different from dev_data here? Only that it is the dev_data after a migration is attempted/completed, right? Thanks, Shameer > + > +What: > /sys/kernel/debug/vfio/<device>/migration/hisi_acc/cmd_state > +Date: Jul 2024 > +KernelVersion: 6.11 > +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. > -- > 2.24.0
