kernel.git/drivers/s390/cio/css.c, branch linux-2.6.34.y

[S390] add hook to reenable mss after hibernation

2010-04-22T15:17:19Z

Reenable multiple subchannel sets after hibernation, prior to the device callbacks. Cc: Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] cio: allow enable_facility from outside init functions

2010-04-22T15:17:19Z

Prepare chsc_enable_facility to be used from outside init functions. Use static memory for the chsc call and protect its access by a spinlock (although there is no concurrent usage). Cc: Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] cio: trigger subchannel event at resume time

2010-02-26T21:37:30Z

ccw_device_pm_restore: trigger subchannel event to better handle changes to the subchannel device. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] cio: make wait_events interruptible

2010-02-26T21:37:29Z

Make the potentially long blocking wait_event's used by the cio settle mechanism interruptible. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] cio: introduce cio_settle

2010-02-26T21:37:29Z

This patch introduces a proc file cio_settle. A write request to this file is blocked until all queued cio actions are handled. This will allow userspace to wait for pending work affecting device availability after changing cio_ignore or the hardware configuration. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] cio: consolidate workqueues

2010-02-26T21:37:29Z

We used to maintain 2 singlethreaded workqueues for synchronization and to trigger work from interrupt context. Since our latest cio changes we only use one of these workqueues. So get rid of the unused workqueue, rename the remaining one to "cio_work_q" and move its ownership to the channel subsystem driver. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

const: constify remaining dev_pm_ops

2009-12-15T16:53:25Z

Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[S390] cio: introduce subchannel todos

2009-12-07T11:51:30Z

Ensure that current and future users of sch->work do not overwrite each other by introducing a single mechanism for delayed subchannel work. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky

[S390] cio: introduce parent-initiated device move

2009-12-07T11:51:29Z

Change the initiative to update subchannel-ccw device associations to the subchannel: when there is an indication that the internal association no longer reflects the current hardware state, mark each affected subchannel as requiring attention. Once processing reaches a subchannel, determine the correct association for that subchannel at that time and perform the necessary device_move operations. This change fixes problems with the previous approach which would leave devices in an inconsistent state when a new hardware change occurred while a device_move was already scheduled. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky

[S390] cio: introduce consistent subchannel scanning

2009-09-22T20:58:42Z

Previously, there were multiple subchannel scanning mechanisms which could potentially conflict with each other. Fix this problem by moving blacklist and ccw driver triggered scanning to the existing evaluation method. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky