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d3683c0552
linux/drivers/s390/cio
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Vineeth Vijayan d3683c0552 s390/cio: add dev_busid sysfs entry for each subchannel 
Introduce dev_busid, which exports the device-id associated with the
io-subchannel (and message-subchannel). The dev_busid indicates that of
the device which may be physically installed on the corrosponding
subchannel. The dev_busid value "none" indicates that the subchannel
is not valid, there is no I/O device currently associated with the
subchannel.

The dev_busid information would be helpful to write device-specific
udev-rules associated with the subchannel. The dev_busid interface would
be available even when the sch is not bound to any driver or if there is
no operational device connected on it. Hence this attribute can be used to
write udev-rules which are specific to the device associated with the
subchannel.

Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2021-08-18 10:01:27 +02:00
..
airq.c s390: add struct tpi_info to struct pt_regs 2021-06-07 17:07:01 +02:00
blacklist.c s390/cio: cio_ignore_proc_seq_next should increase position index 2020-02-17 18:01:57 +01:00
blacklist.h s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
ccwgroup.c s390/ccwgroup: use BUS_NOTIFY_UNBOUND_DRIVER to trigger ungrouping 2021-06-07 17:07:00 +02:00
ccwreq.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
chp.c s390/cio: dont call css_wait_for_slow_path() inside a lock 2021-06-18 16:41:19 +02:00
chp.h s390/cio: Add support for FCES status notification 2020-11-16 08:14:38 -07:00
chsc_sch.c s390/cio: remove pm support from chsc subchannel driver 2020-12-02 18:19:25 +01:00
chsc_sch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
chsc.c s390/cio: dont call css_wait_for_slow_path() inside a lock 2021-06-18 16:41:19 +02:00
chsc.h s390/cio: Export information about Endpoint-Security Capability 2020-11-16 08:14:37 -07:00
cio_debug.h s390/cio: introduce CIO debugfs directory 2021-03-22 11:36:04 +01:00
cio_debugfs.c s390/cio: introduce CIO debugfs directory 2021-03-22 11:36:04 +01:00
cio_inject.c s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
cio_inject.h s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
cio.c s390: add struct tpi_info to struct pt_regs 2021-06-07 17:07:01 +02:00
cio.h s390/cio: add tpi.h header file 2021-06-07 17:07:01 +02:00
cmf.c s390/cmf: get rid of register asm 2021-06-28 11:18:28 +02:00
crw.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
css.c s390/cio: add dev_busid sysfs entry for each subchannel 2021-08-18 10:01:27 +02:00
css.h s390/cio: remove pm support from css-bus driver 2020-12-02 18:19:25 +01:00
device_fsm.c s390/time,idle: get rid of unsigned long long 2021-03-08 10:46:27 +01:00
device_id.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
device_ops.c s390/cio: Helper functions to read CSSID, IID, and CHID 2020-09-15 13:21:46 -07:00
device_pgid.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
device_status.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
device.c s390/cio: remove invalid condition on IO_SCH_UNREG 2021-04-30 17:17:01 +02:00
device.h s390/cio: remove pm support from ccw bus driver 2020-12-02 18:19:25 +01:00
eadm_sch.c s390/cio: remove pm support from eadm-sch drivers 2020-12-02 18:19:24 +01:00
eadm_sch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fcx.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idset.c s390/cio: Remove unused inline function idset_sch_get_first 2020-05-20 10:22:49 +02:00
idset.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io_sch.h s390/cio: remove pm support from ccw bus driver 2020-12-02 18:19:25 +01:00
ioasm.c s390/ioasm: use symbolic names for asm operands 2021-06-28 11:18:29 +02:00
ioasm.h s390: assume diag308 set always works 2018-04-10 07:38:59 +02:00
isc.c s390: cio: add SPDX identifiers to the remaining files 2017-11-24 14:28:41 +01:00
itcw.c s390/cio: fix kernel-doc usage 2018-02-05 07:34:52 +01:00
Makefile s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
orb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qdio_debug.c s390/qdio: remove remaining tasklet & timer code 2021-07-27 09:39:18 +02:00
qdio_debug.h s390/qdio: cleanly split alloc and establish 2020-04-06 13:13:50 +02:00
qdio_main.c s390/qdio: remove unneeded siga-sync for Output Queue 2021-07-27 09:39:18 +02:00
qdio_setup.c s390/qdio: remove remaining tasklet & timer code 2021-07-27 09:39:18 +02:00
qdio_thinint.c s390/qdio: track time of last data IRQ for each device 2021-02-09 15:57:04 +01:00
qdio.h s390/qdio: remove unused macros 2021-07-27 09:39:19 +02:00
scm.c bus_find_device: Unify the match callback with class_find_device 2019-06-24 05:22:31 +02:00
trace.c s390/cio: Remove tracing for rchp instruction 2019-05-08 15:01:22 +02:00
trace.h s390: use struct tpi_info in lowcore.h 2021-06-07 17:07:01 +02:00
vfio_ccw_async.c vfio-ccw: make vfio_ccw_async_region_ops static 2019-07-29 18:05:03 +02:00
vfio_ccw_chp.c vfio-ccw: Fix a build error due to missing include of linux/slab.h 2020-07-03 11:41:31 +02:00
vfio_ccw_cp.c vfio-ccw: Check initialized flag in cp_init() 2021-05-12 12:59:50 +02:00
vfio_ccw_cp.h vfio-ccw: Refactor how the traces are built 2019-10-17 11:35:56 +02:00
vfio_ccw_drv.c vfio-ccw: Serialize FSM IDLE state with I/O completion 2021-05-12 12:59:50 +02:00
vfio_ccw_fsm.c vfio-ccw: Reset FSM state to IDLE inside FSM 2021-05-12 12:59:50 +02:00
vfio_ccw_ops.c vfio-ccw: Reset FSM state to IDLE inside FSM 2021-05-12 12:59:50 +02:00
vfio_ccw_private.h vfio-ccw: Wire in the request callback 2020-12-03 16:21:08 -07:00
vfio_ccw_trace.c vfio-ccw: Add trace for CRW event 2020-06-03 11:28:19 +02:00
vfio_ccw_trace.h vfio-ccw: Add trace for CRW event 2020-06-03 11:28:19 +02:00