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kernel/linux-imx6_3.14.28/Documentation/ABI/stable/sysfs-bus-xen-backend 2.47 KB
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  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.