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chreipl-fcp-mpath: toolset skeleton with initial set of udev rules

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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>
This commit is contained in:
Benjamin Block
2021-09-17 12:10:28 +02:00
committed by Jan Höppner
parent a80c14d72c
commit 2ea20094d0
5 changed files with 112 additions and 3 deletions
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Makefile
+1 -1
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@@ -16,7 +16,7 @@ TOOL_DIRS = zipl zdump fdasd dasdfmt dasdview tunedasd \
vmconvert vmcp man mon_tools dasdinfo vmur cpuplugd ipl_tools \
ziomon iucvterm hyptop cmsfs-fuse qethqoat zfcpdump zdsfs cpumf \
systemd hmcdrvfs cpacfstats zdev dump2tar zkey netboot etc zpcictl \
genprotimg lsstp hsci hsavmcore
genprotimg lsstp hsci hsavmcore chreipl-fcp-mpath
SUB_DIRS = $(BASELIB_DIRS) $(LIB_DIRS) $(TOOL_DIRS)