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docs: document sysfs ABI for vDPA bus 

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

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20211126164753.181829-2-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Stefano Garzarella 2021-11-26 17:47:52 +01:00 committed by Michael S. Tsirkin
parent 0f420c383a
commit 9c25cdeb5f
2 changed files with 38 additions and 0 deletions
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37
Documentation/ABI/testing/sysfs-bus-vdpa Normal file
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What: /sys/bus/vdpa/driver_autoprobe
Date: March 2020
Contact: virtualization@lists.linux-foundation.org
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: virtualization@lists.linux-foundation.org
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: virtualization@lists.linux-foundation.org
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: virtualization@lists.linux-foundation.org
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.

1
MAINTAINERS
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@ -20132,6 +20132,7 @@ M: "Michael S. Tsirkin" <mst@redhat.com>
M: Jason Wang <jasowang@redhat.com>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-vdpa
F: Documentation/devicetree/bindings/virtio/
F: drivers/block/virtio_blk.c
F: drivers/crypto/virtio/