tree 3bbad2e48bb773ac4b6f8e0efb4214c75cede7f5
parent c4621a62649a56f155a96dfc5de479be226f0768
author Sebastian Ott <sebott@linux.vnet.ibm.com> 1238519765 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1238519826 +0200

[S390] cio: introduce notifier for boxed state

If a ccw device did not respond in time during internal io, we set it
into boxed state. With this patch we have the following behaviour:
 * the ccw driver will get a notification if the device was online and
   goes into the boxed state
 * if the device was disconnected and got boxed nothing special is to be
   done (it will be handled in reprobing later)
 * if the device got boxed while initial sensing it will be unregistered

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>