Add missing documentation of sysfs ABI for vDPA bus in
the new Documentation/ABI/testing/sysfs-bus-vdpa file.

Signed-off-by: Stefano Garzarella <[email protected]>
---
 Documentation/ABI/testing/sysfs-bus-vdpa | 37 ++++++++++++++++++++++++
 MAINTAINERS                              |  1 +
 2 files changed, 38 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-vdpa

diff --git a/Documentation/ABI/testing/sysfs-bus-vdpa 
b/Documentation/ABI/testing/sysfs-bus-vdpa
new file mode 100644
index 000000000000..4e55761a39df
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-vdpa
@@ -0,0 +1,37 @@
+What:          /sys/bus/vdpa/driver_autoprobe
+Date:          March 2020
+Contact:       [email protected]
+Description:
+               This file determines whether new devices are immediately bound
+               to a driver after the creation. It initially contains 1, which
+               means the kernel automatically binds devices to a compatible
+               driver immediately after they are created.
+
+               Writing "0" to this file disable this feature, any other string
+               enable it.
+
+What:          /sys/bus/vdpa/driver_probe
+Date:          March 2020
+Contact:       [email protected]
+Description:
+               Writing a device name to this file will cause the kernel binds
+               devices to a compatible driver.
+
+               This can be useful when /sys/bus/vdpa/driver_autoprobe is
+               disabled.
+
+What:          /sys/bus/vdpa/drivers/.../bind
+Date:          March 2020
+Contact:       [email protected]
+Description:
+               Writing a device name to this file will cause the driver to
+               attempt to bind to the device. This is useful for overriding
+               default bindings.
+
+What:          /sys/bus/vdpa/drivers/.../unbind
+Date:          March 2020
+Contact:       [email protected]
+Description:
+               Writing a device name to this file will cause the driver to
+               attempt to unbind from the device. This may be useful when
+               overriding default bindings.
diff --git a/MAINTAINERS b/MAINTAINERS
index 5250298d2817..36ea80b4ba63 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20104,6 +20104,7 @@ M:      "Michael S. Tsirkin" <[email protected]>
 M:     Jason Wang <[email protected]>
 L:     [email protected]
 S:     Maintained
+F:     Documentation/ABI/testing/sysfs-bus-vdpa
 F:     Documentation/devicetree/bindings/virtio/
 F:     drivers/block/virtio_blk.c
 F:     drivers/crypto/virtio/
-- 
2.31.1

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