From: David Vrabel <david.vrabel@citrix.com>
Add ABI documentation for the /sys/bus/xen-backend sysfs files,
including those specific to blkback devices.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
Documentation/ABI/stable/sysfs-bus-xen-backend | 75 ++++++++++++++++++++++++
1 files changed, 75 insertions(+), 0 deletions(-)
create mode 100644 Documentation/ABI/stable/sysfs-bus-xen-backend
diff --git a/Documentation/ABI/stable/sysfs-bus-xen-backend
b/Documentation/ABI/stable/sysfs-bus-xen-backend
new file mode 100644
index 0000000..3d5951c
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-bus-xen-backend
@@ -0,0 +1,75 @@
+What: /sys/bus/xen-backend/devices/*/devtype
+Date: Feb 2009
+KernelVersion: 2.6.38
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ The type of the device. e.g., one of: ''vbd''
(block),
+ ''vif'' (network), or ''vfb''
(framebuffer).
+
+What: /sys/bus/xen-backend/devices/*/nodename
+Date: Feb 2009
+KernelVersion: 2.6.38
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ XenStore node (under /local/domain/NNN/) for this
+ backend device.
+
+What: /sys/bus/xen-backend/devices/vbd-*/physical_device
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ The major:minor number (in hexidecimal) of the
+ physical device providing the storage for this backend
+ block device.
+
+What: /sys/bus/xen-backend/devices/vbd-*/mode
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Whether the block device is read-only (''r'')
or
+ read-write (''w'').
+
+What: /sys/bus/xen-backend/devices/vbd-*/statistics/f_req
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Number of flush requests from the frontend.
+
+What: /sys/bus/xen-backend/devices/vbd-*/statistics/oo_req
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Number of requests delayed because the backend was too
+ busy processing previous requests.
+
+What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_req
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Number of read requests from the frontend.
+
+What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_sect
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Number of sectors read by the frontend.
+
+What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_req
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Number of write requests from the frontend.
+
+What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_sect
+Date: April 2011
+KernelVersion: 3.0
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Number of sectors written by the frontend.
--
1.7.2.5
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel