12 Oct, 2007
1 commit
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There was the possibilty that an action like ccw_device_set_offline()
triggered by a device gone machine check might trigger a not oper
event. Unfortunately, this could lead to the situation that we tried
to unregister a subchannel twice: Once from the slow path evaluation,
and once via the not oper event.Fix this by always using the same mechanism (css_schedule_eval()) for
triggering the unregister. This makes sure that unregistration will
only be done once. As an added bonus, it also simplyfies the code.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
06 Feb, 2007
1 commit
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Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky
08 Dec, 2006
2 commits
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- create a 'pseudo_subchannel' per channel subsystem (the 'orphanage')
- use the orphanage as a shelter for ccw_devices that can't remain on the same
subchannelSigned-off-by: Cornelia Huck
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Martin Schwidefsky -
Signed-off-by: Martin Schwidefsky
27 Oct, 2006
1 commit
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ccw_device_register() is only called from io_subchannel_register()
and io_subchannel_probe() and will never be called for possible
non-io subchannels.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
11 Oct, 2006
1 commit
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The grace period handling introduced needless complexity. It didn't
help the dasd driver (which can handle terminated I/O just well),
and it doesn't help for long running channel programs (which won't
complete during the grace period anyway). Terminating I/O using a
path that just disappeared immediately is much more consistent with
what the user expects.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
29 Jun, 2006
2 commits
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Fixes for several channel measurement facility bugs:
* Blocks copied from the hardware might not be consistent. Solve this
by moving the copying into idle state and repeating the copying.
* avg_sample_interval changed with every read, even though no new block
was available. Solve this by storing a timestamp when the last new
block was received.
* Several locking issues.
* Measurements were not reenabled after a disconnected device became
available again.
* Remove #defines for ioctls that were never implemented.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky -
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
07 Jan, 2006
1 commit
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This patch introduces a struct subchannel_id containing the subchannel number
(formerly referred to as "irq") and switches code formerly relying on the
subchannel number over to it.While we're touching inline assemblies anyway, make sure they have correct
memory constraints.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
