linux/drivers/s390
Harald Freudenberger be53479101 s390/zcrypt: improve special ap message cmd handling
There exist very few ap messages which need to have the 'special' flag
enabled. This flag tells the firmware layer to do some pre- and maybe
postprocessing. However, it may happen that this special flag is
enabled but the firmware is unable to deal with this kind of message
and thus returns with reply code 0x41. For example older firmware may
not know the newest messages triggered by the zcrypt device driver and
thus react with reject and the named reply code. Unfortunately this
reply code is not known to the zcrypt error routines and thus default
behavior is to switch the ap queue offline.

This patch now makes the ap error routine aware of the reply code and
so userspace is informed about the bad processing result but the queue
is not switched to offline state any more.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-11-30 07:22:05 +01:00
..
block s390 updates for the 4.20 merge window 2018-10-23 11:14:47 +01:00
char mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
cio s390/cio: Fix cleanup when unsupported IDA format is used 2018-11-13 11:45:17 +01:00
crypto s390/zcrypt: improve special ap message cmd handling 2018-11-30 07:22:05 +01:00
net s390/qeth: fix length check in SNMP processing 2018-11-28 11:16:54 -08:00
scsi s390/dasd,zfcp: fix gcc 8 stringop-truncation warnings 2018-07-02 11:24:52 +02:00
virtio mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
Makefile kbuild: rename built-in.o to built-in.a 2018-03-26 02:01:19 +09:00