Harald Freudenberger 43cd68d700 s390/zcrypt: make sysfs reset attribute trigger queue reset ... [ Upstream commit 42a87d4103 ] Until now there is no way to reset a AP queue or card. Driving a card or queue offline and online again does only toggle the 'software' online state. The only way to trigger a (hardware) reset is by running hot-unplug/hot-plug for example on the HMC. This patch makes the queue reset attribute in sysfs writable. Writing into this attribute triggers a reset on the AP queue's state machine. So the AP queue is flushed and state machine runs through the initial states which cause a reset (PQAP(RAPQ)) and a re-registration to interrupts (PQAP(AQIC)) if available. The reset sysfs attribute is writable by root only. So only an administrator is allowed to initiate a reset of AP queues. Please note that the queue's counter values are left untouched by the reset. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-12-05 09:20:04 +01:00
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block	s390/dasd: fix endless loop after read unit address configuration	2019-08-06 19:06:55 +02:00
char	s390/kasan: avoid instrumentation of early C code	2019-11-24 08:20:44 +01:00
cio	s390/cio: avoid calling strlen on null pointer	2019-10-11 18:21:08 +02:00
crypto	s390/zcrypt: make sysfs reset attribute trigger queue reset	2019-12-05 09:20:04 +01:00
net	s390/qeth: invoke softirqs after napi_schedule()	2019-11-20 18:46:51 +01:00
scsi	scsi: zfcp: fix reaction on bit error threshold notification	2019-10-29 09:19:48 +01:00
virtio	virtio/s390: fix race on airq_areas[]	2019-09-16 08:22:23 +02:00
Makefile	kbuild: rename built-in.o to built-in.a	2018-03-26 02:01:19 +09:00