linux-toradex.git/drivers/s390/cio/css.c, branch v2.6.19.2

[S390] cio: css_probe_device() must be called enabled.

2006-10-27T10:39:17+00:00

Move css_probe_device() behind giving up the lock for the old subchannel
in css_evaluate_known_subchannel() so we aren't disabled when we call it.

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky

[S390] cio: remove casts from/to (void *).

2006-10-11T13:31:47+00:00

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky

[S390] cio: subchannel evaluation function operates without lock

2006-09-20T14:00:01+00:00

css_evaluate_subchannel() operates subchannel without lock which can
lead to erratic behavior caused by concurrent device access. Also
split evaluation function to make it more readable.

Signed-off-by: Peter Oberparleiter 
Signed-off-by: Martin Schwidefsky

[S390] path grouping and path verifications fixes.

2006-07-12T14:40:19+00:00

1. Multipath devices for which SetPGID is not supported are not handled well.
   Use NOP ccws for path verification (sans path grouping) when SetPGID is not
   supported.
2. Check for PGIDs already set with SensePGID on _all_ paths (not just the
   first one) and try to find a common one. Moan if no common PGID can be
   found (and use NOP verification). If no PGIDs have been set, use the css
   global PGID (as before). (Rationale: SetPGID will get a command reject if
   the PGID it tries to set does not match the already set PGID.)
3. Immediately before reboot, issue RESET CHANNEL PATH (rcp) on all chpids. This
   will remove the old PGIDs. rcp will generate solicited CRWs which can be
   savely ignored by the machine check handler (all other actions create
   unsolicited CRWs).

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky

[S390] subchannel register/unregister mutex.

2006-07-12T14:39:50+00:00

Add a reg_mutex to prevent unregistering a subchannel before it has been
registered. Since 2.6.17, we've seen oopses in kslowcrw when a device is
found to be not operational during sense id when doing initial device
recognition; it is not clear yet why that particular problem was not (yet)
observed with earlier kernels...

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky

[S390] cio async subchannel reprobe.

2006-06-29T12:57:03+00:00

Changes in the DASD driver require an asynchronous implementation of the
subchannel reprobe loop. This loop was so far only used by the blacklisting
mechanism but is now available to all CCW device drivers.

Signed-off-by: Peter Oberparleiter 
Signed-off-by: Martin Schwidefsky

[PATCH] s390: kzalloc() conversion in drivers/s390

2006-03-24T15:33:18+00:00

Convert all kmalloc + memset sequences in drivers/s390 to kzalloc usage.

Signed-off-by: Eric Sesterhenn 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] s390: channel path measurements

2006-03-24T15:33:16+00:00

Gather extended measurements for channel paths from the channel subsystem and
expose them to userspace via a sysfs attribute.

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] "s390: multiple subchannel sets support" fix

2006-03-15T05:43:02+00:00

It seems this patch got dropped (it was in addition to the `s390:
improve response code handling in chsc_enable_facility()' patch).

Acked-by: Cornelia Huck 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] s390: Remove CVS generated information

2006-02-01T16:53:23+00:00

- Remove all CVS generated information like e.g. revision IDs from
  drivers/s390 and include/asm-s390 (none present in arch/s390).

- Add newline at end of arch/s390/lib/Makefile to avoid diff message.

Acked-by: Andreas Herrmann 
Acked-by: Frank Pavlic 
Signed-off-by: Heiko Carstens 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds