lkml.org 
[lkml]   [2023]   [Jan]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v7 4/5] Documentation: add debugfs description for hisi_acc_vfio_pci
    Date
    Add a debugfs document description file to help users understand
    how to use the accelerator live migration driver's debugfs.

    Signed-off-by: Longfang Liu <liulongfang@huawei.com>
    ---
    .../ABI/testing/debugfs-hisi-migration | 32 +++++++++++++++++++
    1 file changed, 32 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..d644a497c464
    --- /dev/null
    +++ b/Documentation/ABI/testing/debugfs-hisi-migration
    @@ -0,0 +1,32 @@
    +What: /sys/kernel/debug/vfio_mig/<bdf>/state
    +Date: Jan 2023
    +Contact: linux-kernel@vger.kernel.org
    +Description: Read the live migration status of the VF device.
    + The status of these live migrations includes:
    + ERROR, RUNNING, STOP, STOP_COPY, RESUMING.
    +
    +What: /sys/kernel/debug/vfio_mig/<bdf>/mig_data
    +Date: Jan 2023
    +Contact: linux-kernel@vger.kernel.org
    +Description: Read the live migration data of the VF device.
    + The output format of the data is defined by the live
    + migration driver.
    +
    +What: /sys/kernel/debug/vfio_mig/<bdf>/mig_attr
    +Date: Jan 2023
    +Contact: linux-kernel@vger.kernel.org
    +Description: Read the live migration attributes of the VF device.
    + The output format of the attributes is defined by the live
    + migration driver.
    +
    +What: /sys/kernel/debug/vfio_mig/<bdf>/debug
    +Date: Jan 2023
    +Contact: linux-kernel@vger.kernel.org
    +Description: This debug file supports "echo" command write operations.
    + The command is actually represented by an integer number, and the
    + specific meaning is defined by the corresponding device driver.
    + For example, three commands are defined in the HiSilicon accelerator
    + live migration driver:
    + 0: State save
    + 1: State resume
    + 2: IO test
    --
    2.24.0
    \
     
     \ /
      Last update: 2023-03-26 23:48    [W:7.643 / U:0.020 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site