linux/drivers/s390/block
Jan Höppner 19508b2047 s390/dasd: Display FC Endpoint Security information via sysfs
Add a new sysfs attribute (fc_security) per device and per operational
channel path. The information of the current FC Endpoint Security state
is received through the CIO layer.

The state of the FC Endpoint Security can be either "Unsupported",
"Authentication", or "Encryption".

For example:
$ cat /sys/bus/ccw/devices/0.0.c600/fc_security
Encryption

If any of the operational paths is in a state different from all
others, the device sysfs attribute will display the additional state
"Inconsistent".

The sysfs attributes per paths are organised in a new directory called
"paths_info" with subdirectories for each path.

/sys/bus/ccw/devices/0.0.c600/paths_info/
├── 0.38
│   └── fc_security
├── 0.39
│   └── fc_security
├── 0.3a
│   └── fc_security
└── 0.3b
    └── fc_security

Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-16 08:14:38 -07:00
..
dasd_3990_erp.c s390/dasd: Fix comment spelling 2020-03-17 20:50:19 +01:00
dasd_alias.c s390/dasd: fix endless loop after read unit address configuration 2019-08-01 20:46:14 -06:00
dasd_devmap.c s390/dasd: Display FC Endpoint Security information via sysfs 2020-11-16 08:14:38 -07:00
dasd_diag.c s390/dasd: Use struct_size() helper 2020-07-15 08:47:11 -06:00
dasd_diag.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dasd_eckd.c s390/dasd: Display FC Endpoint Security information via sysfs 2020-11-16 08:14:38 -07:00
dasd_eckd.h s390: Replace zero-length array with flexible-array member 2020-02-27 16:02:21 +01:00
dasd_eer.c s390/dasd: Handle out-of-space constraint 2019-07-11 20:39:54 +02:00
dasd_erp.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dasd_fba.c s390/dasd: Remove unused parameter from dasd_generic_probe() 2020-11-16 08:14:38 -07:00
dasd_fba.h s390/dasd: fix typo in copyright statement 2019-12-20 11:52:01 -07:00
dasd_genhd.c dasd: cleanup dasd_scan_partitions 2020-09-23 10:43:19 -06:00
dasd_int.h s390/dasd: Display FC Endpoint Security information via sysfs 2020-11-16 08:14:38 -07:00
dasd_ioctl.c dasd: implement ->set_read_only to hook into BLKROSET processing 2020-11-16 08:14:29 -07:00
dasd_proc.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
dasd.c s390/dasd: Remove unused parameter from dasd_generic_probe() 2020-11-16 08:14:38 -07:00
dcssblk.c dcssblk: don't set bd_block_size in ->open 2020-07-01 08:08:15 -06:00
Kconfig s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig 2020-04-17 08:05:27 -06:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scm_blk.c blk-mq: move failure injection out of blk_mq_complete_request 2020-06-24 09:15:57 -06:00
scm_blk.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
scm_drv.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xpram.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00