Hardware mock implementation

Background

For testing qrsa components or simulating the entire module, we need mocks for hardware. We also need a clear interface layer for both mock hardware and real hardware.

Implementation Proposal

Use embedded-hal as an interface for mock hardware and real hardware.

Tasks

• Design interfaces for hardware components (Interface definition should be flexible for future devices)
• Implement those interfaces on hardware abstraction layer with hal library
• Tests

Hardware Monitor

Background

Hardware monitor is a component that is responsible for link-level entanglement generation and monitoring link cost.

Implementation Proposal

For communicating with BSA and EPPS, HM uses tokio to manipulate the socket.

Tasks

• Design interfaces between Hardware components (Start link generation)
• Design interfaces between RuleEngine (link entanglement ready)
• Design interfaces between next-hop Hardware Monitor (tomography negotiation)
• Design interfaces between Routing Daemon (notify link cost)
• Implementation of these interfaces
• Test

We need a concrete and precise design for overall components to implement the full fine working software.

• Full sequence diagram for qrsa components
• Interface design
• Data structure design

Connection Manager

Implementations

• Receive application requirements
• Create a Connection Setup Request and forward it (Initiator)
• Receive Connection Setup Request, push performance information, and forward it (Repeater/Router)
• Receive Connection Setup Request and extract performance information (Responder)
• Create RuleSets and create/send Connection Setup Response with them (Responder)
• Provide RuleSet to Rule Engine for responder itself (Responder)
• Receive a Connection Setup Response and get/forward RuleSet (Initiator/Repeater/Router)
• Send Link Allocation Update and get negotiated LA
• Send Barrier

Considerations

• Selective compile
• Async

Testing

• Unit testing
• Create several connection manager instances and test them in realistic situation.