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7 Commits

Author SHA1 Message Date
Sebastian Ott
aebfa669d9 s390/scm: process availability 
Let the bus code process scm availability information and
notify scm device drivers about the new state.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2013-03-07 09:52:24 +01:00
Sebastian Ott
4fa3c01964 s390/scm_blk: suspend writes 
Stop writing to scm after certain error conditions such as a concurrent
firmware upgrade. Resume to normal state once scm_blk_set_available is
called (due to an scm availability notification).

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2013-03-07 09:52:23 +01:00
Sebastian Ott
93481c9020 s390/scm_drv: extend notify callback 
Extend the notify callback of scm_driver by an event parameter
to allow to distinguish between different notifications.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2013-03-07 09:52:21 +01:00
Sebastian Ott
c3e6d407c0 s390/scm: remove superfluous lock 
Remove the spinlock from struct scm_device. drvdata and attributes
are guarded via device_lock.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2012-09-26 15:45:09 +02:00
Sebastian Ott
40ff4cc066 s390: add scm notification 
Detect an scm change notification in store event information.
Update affected scm devices and notify their drivers.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2012-09-26 15:44:59 +02:00
Sebastian Ott
1d1c8f78be s390: add scm bus driver 
Bus driver to manage Storage Class Memory.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2012-09-26 15:44:59 +02:00
Sebastian Ott
d2fc439b99 s390: add eadm related structures 
Add structures to be used by the eadm subchannel driver.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2012-09-26 15:44:57 +02:00