linux-toradex.git/drivers/s390/cio/qdio_debug.c, branch v3.2.68

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-07T03:44:47+00:00

* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include 
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include 
  net: sch_generic remove redundant use of 
  net: inet_timewait_sock doesnt need 
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h

s390: add missing module.h/export.h includes

2011-10-31T23:30:58+00:00

Fix several compile errors on s390 caused by splitting module.h.

Some include additions [e.g. qdio_setup.c, zfcp_qdio.c] are in
anticipation of pending changes queued for s390 that increase
the modular use footprint.

[PG: added additional obvious changes since Heiko's original patch]

Signed-off-by: Heiko Carstens 
Signed-off-by: Paul Gortmaker

[S390] qdio: add timestamp for last queue scan time

2011-10-30T14:16:45+00:00

Add a timestamp per queue and update the timestamp when the queue is
scanned. Add the queue timestamps and the timestamp of the last
adapter interrupt to the debugfs output. The timestamps are useful
for debugging stall conditions.

Signed-off-by: Jan Glauber 
Signed-off-by: Martin Schwidefsky

qdio: support asynchronous delivery of storage blocks

2011-08-13T08:10:16+00:00

This patch introduces support for asynchronous delivery of storage blocks for
Hipersockets. Upper layers may exploit this functionality to reuse SBALs for
which the delivery status is still pending.

Signed-off-by: Einar Lueck 
Signed-off-by: Jan Glauber 
Signed-off-by: Frank Blaschka 
Signed-off-by: David S. Miller

[S390] qdio: Use kstrtoul_from_user

2011-08-03T14:44:21+00:00

This patch replaces the code for getting an unsigned long from a
userspace buffer by a simple call to kstroul_from_user.
This makes it easier to read and less error prone.

Signed-off-by: Peter Huewe 
Acked-by: Jan Glauber 
Signed-off-by: Heiko Carstens

[S390] qdio: outbound queue full counter

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

Add a counter for outbound queue full events to the qdio statistics.

Signed-off-by: Jan Glauber 
Signed-off-by: Martin Schwidefsky

qdio: extend API to allow polling

2010-09-08T21:31:00+00:00

Extend the qdio API to allow polling in the upper-layer driver. This
is needed by qeth to use NAPI.

To use the new interface the upper-layer driver must specify the
queue_start_poll(). This callback is used to signal the upper-layer
driver that is has initiative and must process the inbound queue by
calling qdio_get_next_buffers(). If the upper-layer driver wants to
stop polling it calls qdio_start_irq().

Since adapter interrupts are not completely stoppable qdio implements
a software bit QDIO_QUEUE_IRQS_DISABLED to safely disable interrupts for an
input queue.

The old interface is preserved and will be used as is by zfcp.

Signed-off-by: Jan Glauber 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Frank Blaschka 
Signed-off-by: David S. Miller

[S390] remove unused qdio flags in zfcp and qeth

2010-03-08T11:25:30+00:00

zfcp and qeth are setting flags for the qdio-layer, but these flags
are not used in qdio. Patch removes the flag definitions from qdio
and their settings in zfcp and qeth.

Cc: Jan Glauber 
Cc: Christof Schmitt 
Signed-off-by: Ursula Braun 
Signed-off-by: Martin Schwidefsky

[S390] qdio: account processed SBAL during queue scan

2010-02-26T21:37:30+00:00

Add counters for the number of processed SBALs. The numbers summarize
how many SBALs were processed at each queue scan and indicate the
utilization of the queue. Furthermore the number of unsuccessfull
queue scans, SBAL errors and the total number of processed
SBALs are accounted.

Also regroup struct qdio_q to move read-mostly and write-mostly data
into different cachelines.

Signed-off-by: Jan Glauber 
Signed-off-by: Martin Schwidefsky

[S390] qdio: convert global statistics to per-device stats

2010-01-04T08:05:58+00:00

Revamp the qdio performance statistics and move them from procfs to
debugfs using the seq_file interface. Since the statistics are not
intended for the general user the removal of /proc/qdio_perf should
not surprise anyone.

The per device statistics are disabled by default, writing 1 to
//qdio//statistics enables the
statistics for the given device.

Signed-off-by: Jan Glauber 
Signed-off-by: Martin Schwidefsky