Benjamin Block 2ea20094d0 chreipl-fcp-mpath: toolset skeleton with initial set of udev rules ...

Add a new tool to s390-tools: chreipl-fcp-mpath. A toolset based on udev
to change the active re-IPL target if the current target goes into an
error-state, due to for example a pulled cable.

Add the base infrastructure consisting of a Makefile and a base set of
udev rules. Integrate the Makefile into s390-tools Make machinery.

The rules filter events base on the event subject type (dm-multipath,
scsi disk), udev action (change, or add), and device mapper action
(path failure, or path reinstated). No further processing is done right
now in case of a match; if neither of these criteria matches, the
rules exit, and the toolset won't be invoked.

Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

2021-11-10 15:12:10 +01:00

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