Reference in a new issue

Blame

Copy permalink

Reference in a new issue

Copy permalink

Vineeth Vijayan 9e9590f5e0 s390/cio: Do not unregister the subchannel based on DNV ... [ Upstream commit 8c58a22968 ] Starting with commit 2297791c92 ("s390/cio: dont unregister subchannel from child-drivers"), CIO does not unregister subchannels when the attached device is invalid or unavailable. Instead, it allows subchannels to exist without a connected device. However, if the DNV value is 0, such as, when all the CHPIDs of a subchannel are configured in standby state, the subchannel is unregistered, which contradicts the current subchannel specification. Update the logic so that subchannels are not unregistered based on the DNV value. Also update the SCHIB information even if the DNV bit is zero. Suggested-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com> Fixes: 2297791c92 ("s390/cio: dont unregister subchannel from child-drivers") Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-12-05 14:01:11 +01:00
..
block	s390/dasd: fix error recovery leading to data corruption on ESE devices	2024-08-12 10:31:08 -06:00
char	s390/sclp_vt220: Convert newlines to CRLF instead of LFCR	2024-10-16 11:32:32 +02:00
cio	s390/cio: Do not unregister the subchannel based on DNV	2024-12-05 14:01:11 +01:00
crypto	s390/pkey_pckmo: Return with success for valid protected key types	2024-10-16 11:32:32 +02:00
net	net: Add struct kernel_ethtool_ts_info	2024-07-15 08:02:26 -07:00
scsi	s390/zfcp: use new address translation helpers	2024-03-13 09:23:48 +01:00
virtio	s390/virtio_ccw: Fix dma_parm pointer not set up	2024-12-05 14:01:10 +01:00
Makefile	s390: remove pointless drivers-y in drivers/s390/Makefile	2019-09-16 13:21:51 +02:00