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authorStefano Garzarella <sgarzare@redhat.com>2021-11-26 17:47:52 +0100
committerMichael S. Tsirkin <mst@redhat.com>2022-01-15 00:50:52 +0100
commit9c25cdeb5f3ca9ef0d683ee8c29b7cb61a174165 (patch)
treeec13242c7838ddba038aef964ae0ced0ed489386
parentifcvf/vDPA: fix misuse virtio-net device config size for blk dev (diff)
downloadlinux-9c25cdeb5f3ca9ef0d683ee8c29b7cb61a174165.tar.xz
linux-9c25cdeb5f3ca9ef0d683ee8c29b7cb61a174165.zip
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>
-rw-r--r--Documentation/ABI/testing/sysfs-bus-vdpa37
-rw-r--r--MAINTAINERS1
2 files changed, 38 insertions, 0 deletions
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: 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.
diff --git a/MAINTAINERS b/MAINTAINERS
index fb18ce7168aa..d10667bcc3cf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -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/