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19508b2047
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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.