SocLib Components General Index

RingGateway

1) Functional Description

In a clusterized architecture, clusters are connected to the global interconnect through dedicated interfaces : RingGateways. One RingGateway component is attached to one ring interconnect. This hardware component is composed of two components :

• HalfGatewayInitiator : handles incoming commands and outcoming responses to and from the interconnect to which it is attached
• HalfGatewayTarget : handles outcoming commands and incoming responses to and from the interconnect to which it is attached.

HGI : Half Gateway Initiator HGT : Half Gateway Target

2) Component definition & usage

source:trunk/soclib/soclib/module/network_component/ring_gateway/caba/metadata/ring_gateway.sd

3) CABA implementation

CABA sources

• interface : source:trunk/soclib/soclib/module/network_component/ring_gateway/caba/source/include/ring_gateway.h
• implementation : source:trunk/soclib/soclib/module/network_component/ring_gateway/caba/source/src/ring_gateway.cpp

CABA Constructor parameters

RingGateway( sc_module_name insname,                     // instance name
             const soclib::common::MappingTable &mt,     // mapping table
             const soclib::common::IntTab &ringid,       // global subsystem index
             bool  alloc_init,                           // default initiator token owner
             bool  alloc_target,                         // default target token owner
	     bool  local,                                // routing parameter
             const int &half_gateway_fifo_depth);        // half gateway fifo depth

CABA ports

• sc_in<bool> p_clk; Global system clock
• sc_in<bool> p_resetn; Global system reset
• soclib::caba::RingIn p_ring_in; Ring input port
• soclib::caba::RingOut p_ring_out; Ring output port
• soclib::caba::GateInitiator p_gate_initiator; Port to gate target
• soclib::caba::GateTarget p_gate_target; Port to gate initiator

4) TLMT implementation

The TLM-T implementation is not available yet.