linux-toradex.git/arch/s390/include/asm/ccwdev.h, branch v3.4.8

[S390] fix mismatch in summation of I/O IRQ statistics

2011-10-30T14:16:15+00:00

Current IRQ statistics support does not show detail counts for I/O
interrupts which are processed internally only. The result is a
summation count which is way off such as this one:

           CPU0       CPU1       CPU2
I/O:       1331        710        442
[...]
QAI:         15         16         16   [I/O] QDIO Adapter Interrupt
QDI:          1          0          0   [I/O] QDIO Interrupt
DAS:        706        645        381   [I/O] DASD
C15:         26         10          0   [I/O] 3215
C70:          0          0          0   [I/O] 3270
TAP:          0          0          0   [I/O] Tape
VMR:          0          0          0   [I/O] Unit Record Devices
LCS:          0          0          0   [I/O] LCS
CLW:          0          0          0   [I/O] CLAW
CTC:          0          0          0   [I/O] CTC
APB:          0          0          0   [I/O] AP Bus

Fix this by moving I/O interrupt accounting into the common I/O layer.

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

[S390] ccw_driver: remove duplicate members

2011-03-23T09:15:59+00:00

Remove the owner and name members of struct
ccw_driver and convert all drivers to store
this data in the embedded struct device_driver.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] cio: obtain mdc value per channel path

2011-01-05T11:47:28+00:00

Add support to accumulate the number of 64K-bytes blocks all paths
to a device at least support for a transport command.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] cio: notify drivers of channel path events

2010-10-25T14:10:19+00:00

This patch adds a notification mechanism to inform ccw drivers
about changes to channel paths, which occured while the device
is online.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] cio: CHSC SIOSL Support

2010-08-09T16:12:53+00:00

A Linux interface for the CHSC command
store-I/O-operation-status-and-initiate-logging (SIOSL).
Model-dependent logging within the channel subsystem can be invoked
via a helper function or a writable subchannel device attribute.

Signed-off-by: Michael Ernst 
Signed-off-by: Martin Schwidefsky

[S390] cio: unit check handling during internal I/O

2010-05-26T21:27:09+00:00

Send unit checks that occur during internal I/O to the device driver
and react according to its return code.

Signed-off-by: Michael Ernst 
Signed-off-by: Martin Schwidefsky

[S390] cio: split PGID settings and status

2009-12-07T11:51:31+00:00

Split setting (driver wants feature enabled) and status (feature
setup was successful) for PGID related ccw device features so that
setup errors can be detected. Previously, incorrectly handled setup
errors could in rare cases lead to erratic I/O behavior and
permanently unusuable devices.

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

[S390] cio: force console function

2009-06-16T08:31:11+00:00

If something goes wrong in a suspend / resume cycle a ccw based console
if very likely in the suspended state and cannot print anything.
Introduce ccw_device_force_console to force the wake up of the console
device to be able to print the oops message. The console device drivers
should use this function only if the system paniced.

Signed-off-by: Martin Schwidefsky

[S390] pm: ccw bus power management callbacks

2009-06-16T08:31:08+00:00

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

[S390] move include/asm-s390 to arch/s390/include/asm

2008-08-01T18:42:05+00:00

Signed-off-by: Martin Schwidefsky