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hw-mgmt: events: Add support for SDK OFFLINE event for handling flow …
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…with in service firmware upgrade

In order to prevent "mlxsw_minimal" driver access to ASIC during in
service firmware upgrade flow, SDK will raise "OFFLINE" 'udev' event
at early beginning of such flow. When this event is received,
hw-managemnet will remove "mlxsw_minimal" driver.
There is no need to implement opposite "ONLINE" event, since this flow
is ended up with "kexec".

Signed-off-by: Vadim Pasternak <[email protected]>
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vadimp-nvidia committed Jan 17, 2021
1 parent 3f13473 commit 6c64a72
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1 change: 1 addition & 0 deletions usr/lib/udev/rules.d/50-hw-management-events.rules
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Expand Up @@ -269,3 +269,4 @@ SUBSYSTEM=="i2c", DEVPATH=="/devices/platform/mlxplat/i2c_mlxcpld*/i2c-*/i2c-*/*
# SDK
SUBSYSTEM=="pci", DRIVERS=="sx_core", ACTION=="add", RUN+="/usr/bin/hw-management-thermal-events.sh add sxcore add"
SUBSYSTEM=="pci", DRIVERS=="sx_core", ACTION=="remove", RUN+="/usr/bin/hw-management-thermal-events.sh rm sxcore remove"
SUBSYSTEM=="pci", DRIVERS=="sx_core", ACTION=="offline", RUN+="/usr/bin/hw-management-thermal-events.sh rm sxcore remove"

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