HPI To XTCA Mapping Specification
Because HPI is widely used on AdvancedTCA systems, the SA Forum published a Mapping Specification, labeled SAIM-HPI-B.01.01-ATCA in January 2006. The purpose of this specification is to provide guidance to implementers of HPI management interfaces on a recommended way to model this complex system architecture with HPI. In February 2010 a new mapping specification, SAIM-HPI-B.03.02-xTCA was published that revises this mapping and extends it to MicroTCA systems.
The HPI to xTCA mapping specification defines a way to represent the manageability of an xTCA platform in HPI in a single HPI Domain. Entity Path naming of xTCA system components is specified, and Management Instruments are defined that reflect the platform management information and control functions available in these platforms.
The mapping specification also defines Resources for the xTCA chassis, shelf manager, carrier manager and other FRUs. In the original version of the specification, Resources were defined and required for all “Slots” in the chassis or on carrier cards that could potentially host FRUs. In the update published in 2010, these Slot resources were made optional.
The HPI to xTCA Mapping Specification serves two audiences. The first consists of platform developers who want to incorporate an HPI interface into an AdvancedTCA or MicroTCA platform. The specification provides a template for modeling the systems.
The second audience consists of HPI users that wish to create portable application or middleware programs across multiple AdvancedTCA or MicroTCA platforms. However, HPI users that wish to provide portable programs for both xTCA and other hardware platform architectures do not necessarily need to reference the HPI to xTCA Mapping Specification. This is because HPI implementations that follow the HPI to xTCA Mapping Specification will present basic platform management capabilities in a way that is discoverable and usable via the standard HPI interface. Some platform management capabilities that are unique to xTCA platforms are not usable without referencing the Mapping Specification, but these may be reasonably ignored by most general purpose HPI user applications.
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