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linux/drivers/s390
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
..
block [S390] drivers/s390/block/dasd_eckd.c: add missing dasd_sfree_request 2012-04-11 14:28:24 +02:00
char [S390] s390/char/vmur.c: fix memory leak 2012-04-11 14:28:24 +02:00
cio s390/qdio: Cleanup error handling to drivers 2012-05-16 14:42:36 +02:00
crypto Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
kvm [S390] irq: external interrupt code passing 2012-03-11 11:59:29 -04:00
net s390/qdio: Cleanup error handling to drivers 2012-05-16 14:42:36 +02:00
scsi compat: fix compile breakage on s390 2012-02-27 07:54:27 -08:00
Makefile