Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:		/sys/block/rnbd<N>/rnbd/unmap_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Date:		Feb 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) KernelVersion:	5.7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) Description:	To unmap a volume, "normal" or "force" has to be written to:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 		/sys/block/rnbd<N>/rnbd/unmap_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 		When "normal" is used, the operation will fail with EBUSY if any process
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 		is using the device.  When "force" is used, the device is also unmapped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 		when device is in use.  All I/Os that are in progress will fail.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		Example::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		  # echo "normal" > /sys/block/rnbd0/rnbd/unmap_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) What:		/sys/block/rnbd<N>/rnbd/state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) Date:		Feb 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) KernelVersion:	5.7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) Description:	The file contains the current state of the block device. The state file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		returns "open" when the device is successfully mapped from the server
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		and accepting I/O requests. When the connection to the server gets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		disconnected in case of an error (e.g. link failure), the state file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		returns "closed" and all I/O requests submitted to it will fail with -EIO.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) What:		/sys/block/rnbd<N>/rnbd/session
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) Date:		Feb 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) KernelVersion:	5.7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) Description:	RNBD uses RTRS session to transport the data between client and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		server.  The entry "session" contains the name of the session, that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		was used to establish the RTRS session.  It's the same name that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		was passed as server parameter to the map_device entry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) What:		/sys/block/rnbd<N>/rnbd/mapping_path
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) Date:		Feb 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) KernelVersion:	5.7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) Description:	Contains the path that was passed as "device_path" to the map_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) What:		/sys/block/rnbd<N>/rnbd/access_mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) Date:		Feb 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) KernelVersion:	5.7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) Contact:	Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) Description:	Contains the device access mode: ro, rw or migration.