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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2013-01-28 22:29:43 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-02-14 18:55:07 +0400 |
| commit | 69f5576f6c8c9d0f0b3670ee7c807a194b4c40f4 (patch) | |
| tree | 0872aa245fb0c5b0a4decb14e7bd71726baa995e /drivers/s390/cio/io_sch.h | |
| parent | b4b3d128c821d70112ac0096d5c1440f5ed9f718 (diff) | |
| download | linux-69f5576f6c8c9d0f0b3670ee7c807a194b4c40f4.tar.xz | |
s390/cio: dont abort verification after missing irq
Do not abort path verification when waiting for an interrupt timed out.
Use path_noirq_mask to keep track of the paths used for this (also
maintain a path_notoper_mask for debugging purposes). If the timeout
happend to be during an operation where we query or alter the state of
path groups set the pgid_unknown flag.
With this change we allow usage of devices which have such ill-behaved
paths (if at least one path is operational).
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/io_sch.h')
| -rw-r--r-- | drivers/s390/cio/io_sch.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h index 76253dfcc1be..b108f4a5c7dd 100644 --- a/drivers/s390/cio/io_sch.h +++ b/drivers/s390/cio/io_sch.h @@ -126,6 +126,10 @@ struct ccw_device_private { u8 pgid_valid_mask; /* mask of valid PGIDs */ u8 pgid_todo_mask; /* mask of PGIDs to be adjusted */ u8 pgid_reset_mask; /* mask of PGIDs which were reset */ + u8 path_noirq_mask; /* mask of paths for which no irq was + received */ + u8 path_notoper_mask; /* mask of paths which were found + not operable */ u8 path_gone_mask; /* mask of paths, that became unavailable */ u8 path_new_mask; /* mask of paths, that became available */ struct { @@ -145,6 +149,7 @@ struct ccw_device_private { unsigned int resuming:1; /* recognition while resume */ unsigned int pgroup:1; /* pathgroup is set up */ unsigned int mpath:1; /* multipathing is set up */ + unsigned int pgid_unknown:1;/* unknown pgid state */ unsigned int initialized:1; /* set if initial reference held */ } __attribute__((packed)) flags; unsigned long intparm; /* user interruption parameter */ |