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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2009-03-31 19:16:05 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-03-31 19:17:06 +0200 |
| commit | 47593bfa1056d306fde067b28dd8617009be4121 (patch) | |
| tree | 3bbad2e48bb773ac4b6f8e0efb4214c75cede7f5 /arch/s390 | |
| parent | c4621a62649a56f155a96dfc5de479be226f0768 (diff) | |
| download | lwn-47593bfa1056d306fde067b28dd8617009be4121.tar.gz lwn-47593bfa1056d306fde067b28dd8617009be4121.zip | |
[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>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/cio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index 6dccb071aec3..619bf94b11f1 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -456,6 +456,8 @@ struct ciw { #define CIO_OPER 0x0004 /* Sick revalidation of device. */ #define CIO_REVALIDATE 0x0008 +/* Device did not respond in time. */ +#define CIO_BOXED 0x0010 /** * struct ccw_dev_id - unique identifier for ccw devices |