[ModuleBase] Add get_midplane_down_reason() API - #705
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rameshraghupathy
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Signed-off-by: Charles Tsai <chartsai@nvidia.com>
Signed-off-by: Charles Tsai <chartsai@nvidia.com>
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Signed-off-by: Charles Tsai <chartsai@nvidia.com>
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Why I did it
Modular chassis and SmartSwitch platforms need a standard way to report why a module's
midplane went down.
ModuleBaseexposes reachability but does not expose the reason.This API is part of the DPU robustness HLD.
Work item tracking
How I did it
ModuleBase.get_midplane_down_reason()with a(reason, description)returncontract.
ChassisBase.REBOOT_CAUSE_*constants instead ofredefining equivalent constants in
ModuleBase.get_midplane_down_reasonto the parameterized test that verifies base methodsraise
NotImplementedError.How to verify it
cd src/sonic-platform-common pytest tests/module_base_test.pyThe targeted test suite passed with 117 tests.
Which release branch to backport (provide reason below if selected)
Description for the changelog
Add ModuleBase API for reporting midplane down reasons