Sensor Discovery and Manageability for Pluggable DC-MHS Designs.pdf

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1、When considering DC-MHS-based platform designs,it is important to consider ascalable and vendor-agnostic approach to discovering,interfacing,and firmwareprovisioning for the HPM,modular IO,accelerators,sensors,and other peripheraldevices.DC-MHS workstreams are currently defining a plug-and-play arch

2、itecturethat can address these,and other related factors,with the DC-MHS composablearchitecture.In this presentation,we will explore different methods of enabling the BMC on theDC-SCM card to perform accurate thermal management by providing temperaturesensor information for the platform using differ

3、ent HPM cards.We will delve into thepros and cons of each option starting with a BMC-centric approach that utilizesOpenBMC Entity Manager and an HPM Definition file,and then through to a designthat abstracts the sensor interface.The goal of these designs is to allow the BMC tocommunicate with HPM se

4、nsors without prior knowledge of the HPM configuration.Sensor Discovery and Manageability for Pluggable DC-MHS DesignsTodd Rosedahl,Senior System Architect,JabilAdonay Berhe,Product Marketing Manager,AMISensor Discovery and Manageability for Pluggable DC-MHS DesignsSustainable Scalable Computation I

5、nfrastructureGoal:Achieving a Plug-n-Play EcosystemOff-the-Shelf Host Processor Module(HPM)InteroperabilityDC-SCM card should operate seamlessly DC-SCM and HPM should be fully functionalMinimal compatibility issuesDC-SCM and HPM development should be IndependentCo-design not requiredDifferent Silico

6、nDifferent temperature sensorsDifferent device typesDifferent topologies Different thermal requirementsExample Scenario:Three(3)HPM Boards WithSource:DC-MHS R1 Overview SpecSensor TypeSensor LocationSupported InterfacesTopologyBehind a mux/notThermal trip limits and actions Shutdowns,Fan speed adjus