phosphor-fan-presence, branch master

Speed up sensor presence detect

2018-05-04T05:52:54+00:00

This partially reverts GIT hash c72b8911

Add PID control option to fan controller

2018-05-04T05:52:54+00:00

Add fan shutdown option to stop rotors after chassis powerdown

2018-05-04T05:52:54+00:00

Allow per-zone preconditions

2018-05-04T05:52:54+00:00

This lays the groundwork for CPU population-dependent fan control

Allow override of deviation with absolute minimum RPM

2018-04-29T01:52:15+00:00

If the devation is less than zero, treat as an absolute minimum RPM value

Rename remove object interface function

2018-04-12T14:40:54+00:00

Update the removeObjIntf function name to removeObjectInterface. This was requested per a review comment. Tested: N/A Change-Id: I52589724685bb5b8d92d3da22072b63b43f69a01 Signed-off-by: Matthew Barth

Generate InterfacesRemoved signal events

2018-03-30T14:48:57+00:00

In the case that an interface containing a property used within an event is removed from dbus, that event can subscribe to the InterfacesRemoved signal. When an InterfacesRemoved signal is received by fan control, the corresponding interface (and all associated properties) is removed from the cache used by all events. *Note: This area of signal subscription/handling code generation is intended to be re-worked under openbmc/openbmc#2911. This is the reason for supporting a different yaml layout for the InterfacesRemoved signal. Tested: Generated code constructs InterfacesRemoved signals correctly Resolves openbmc/openbmc#2223 Change-Id: Idc3e8db4e7dc07a2bb6898d3cc30ab775362dd35 Signed-off-by: Matthew Barth

Add InterfacesRemoved signal handling

2018-03-30T14:48:49+00:00

When an InterfacesRemoved signal is received for a subscribed object path, each interface returned is checked against the interface which was defined for each object on the event. When these are equal, the interface (and all associated properties) are removed from the shared cache of event properties. Tested: Manually added an InterfacesRemoved signal Verified interface was removed from object path in cache Change-Id: I348d82f14e0cfba2b18a81a9f54c6cb06b586797 Signed-off-by: Matthew Barth

Minimize service name mapper lookups

2018-03-12T15:29:43+00:00

Retrieve the service names from the cached dataset within the zone for a path and interface, updating the cache when not found. This is used when initializing property values and service name owners. Additional performance enhancements to use `GetSubTree` prior to processing a set speed event will be included under openbmc/openbmc#2911. This will keep unnecessary `GetSubTree` lookups from occurring for paths/interfaces that don't exist to further improve upon initializing properties fan control is defined to use. Tested: First path updates service name cache for all paths sharing the same interface First missing interface on a path updates service name cache for all paths sharing that interface Verify mapper lookups for X number of paths sharing the same interface is reduced to (X-(X-1)) NameOwnerChanged events read/update the same set of service name cache Change-Id: Ia235b36ba5ae8cda38342d7521f3d87080c2970a Signed-off-by: Matthew Barth

Get a property without service name lookup

2018-03-12T15:29:43+00:00

Expand on the current getProperty functions to allow a service name to be passed in so a mapper lookup is not necessary. Tested: A property value is read from a message where the service is given Change-Id: Ia0450163744c9f89a26a053ec2cfb44ae761426d Signed-off-by: Matthew Barth