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1549d13f4c
linux/drivers/s390/cio
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Jan Glauber 1549d13f4c s390/qdio: Cleanup error handling to drivers 
Various improvements of qdio error reporting to the
upper-layer drivers (qeth, zfcp):

- Split QDIO_ERROR_ACTIVATE_CHECK_CONDITION into:

  QDIO_ERROR_ACTIVATE: qdio termination interrupt
  QDIO_ERROR_GET_BUF_STATE: QIOASSIST eqbs error
  QDIO_ERROR_SET_BUF_STATE: QIOASSIST sqbs error

  Add QDIO_ERROR_FATAL / QDIO_ERROR_TEMPORARY masks
  to ease recovery decision in upper-layer drivers.

- Don't (ab-)use qdio handler errors as return codes
  for do_QDIO but use standard error codes:

  -ENOBUFS: temporary target CC=2 condition
  -EBUSY: unresolved SIGA-W CC=2 busy condition
  -EIO: I/O error (CC=1, CC=3)

- Remove unneeded memory clobber from SIGA-R
- Remove EX_TABLE entry on SIGA-W, we want to see these errors

Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-16 14:42:36 +02:00
..
airq.c [S390] cio: airq - fix array boundary 2009-03-26 15:24:14 +01:00
blacklist.c s390: Convert vmalloc/memset to vzalloc 2011-09-15 13:55:02 +02:00
blacklist.h
ccwgroup.c cio: remove {get,put}_driver 2012-01-24 16:00:35 -08:00
ccwreq.c [S390] cio: add message for timeouts on internal I/O 2011-10-30 15:16:41 +01:00
chp.c s390: add missing module.h/export.h includes 2011-10-31 19:30:58 -04:00
chp.h [S390] cio: update descriptor in chsc_chp_vary 2010-10-25 16:10:18 +02:00
chsc_sch.c compat: fix compile breakage on s390 2012-02-27 07:54:27 -08:00
chsc_sch.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
chsc.c [S390] cio: fix chsc_chp_vary 2011-12-01 13:32:18 +01:00
chsc.h [S390] cio: obtain mdc value per channel path 2011-01-05 12:47:28 +01:00
cio_debug.h
cio.c [S390] rework idle code 2012-03-11 11:59:28 -04:00
cio.h [S390] hibernate: directly trigger subchannel evaluation 2011-12-01 13:32:17 +01:00
cmf.c module_param: avoid bool abuse, add bint for special cases. 2012-01-13 09:32:17 +10:30
crw.c Disintegrate asm/system.h for S390 2012-03-28 18:30:02 +01:00
css.c [S390] hibernate: directly trigger subchannel evaluation 2011-12-01 13:32:17 +01:00
css.h [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
device_fsm.c [S390] cio: provide fake irb for transport mode IO 2011-12-01 13:32:18 +01:00
device_id.c [S390] cio: use all available paths for some internal I/O 2010-08-09 18:12:54 +02:00
device_ops.c [S390] cio: provide fake irb for transport mode IO 2011-12-01 13:32:18 +01:00
device_pgid.c [S390] cio: notify drivers of channel path events 2010-10-25 16:10:19 +02:00
device_status.c [S390] cio: remove intretry flag 2009-12-07 12:51:31 +01:00
device.c cio: remove {get,put}_driver 2012-01-24 16:00:35 -08:00
device.h [S390] fix mismatch in summation of I/O IRQ statistics 2011-10-30 15:16:15 +01:00
fcx.c [S390] drivers: Correct size given to memset 2009-12-18 17:43:32 +01:00
idset.c [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
idset.h [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
io_sch.h [S390] cio: provide fake irb for transport mode IO 2011-12-01 13:32:18 +01:00
ioasm.h [S390] cio: move asms to generic header 2011-03-15 17:08:23 +01:00
isc.c [S390] cio: introduce isc_(un)register functions. 2008-07-14 10:02:11 +02:00
itcw.c [S390] cio: reduce memory consumption of itcw structures 2011-01-05 12:47:29 +01:00
Makefile [S390] qdio: convert global statistics to per-device stats 2010-01-04 09:05:58 +01:00
orb.h [S390] cio: move orb definitions to separate header 2011-03-15 17:08:23 +01:00
qdio_debug.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
qdio_debug.h [S390] qdio: rework debug feature logging 2008-12-25 13:38:59 +01:00
qdio_main.c s390/qdio: Cleanup error handling to drivers 2012-05-16 14:42:36 +02:00
qdio_setup.c [S390] qdio: log all adapter characteristics 2012-03-23 11:13:24 +01:00
qdio_thinint.c [S390] qdio: prevent dsci access without adapter interrupts 2011-10-30 15:16:47 +01:00
qdio.h [S390] qdio: prevent dsci access without adapter interrupts 2011-10-30 15:16:47 +01:00