pothosware / pothosfpga

Pothos FPGA computational offload and buffer integration support

Pothos FPGA support

The Pothos FPGA support package is a demonstration of creating a structured FPGA design that can be interfaced with the Pothos Framework for the purposes of direct buffer access, and using the framework blocks and topology to configure FPGA processing and streaming.

pothosfpga's Issues

interconnect module

• arbitrary lane configurations
• arbitrary input and output streams
• configuration protocol

combiner stream block

• The combiner stream block has many inputs and one output
• The inputs and outputs follow the RV stream standard (packet aware)
• Only one input port can be serviced at a time
• An entire packet must be transferred before another port is serviced

multi-lane outgress module

• arbitrary number of lanes flow through
• each lane to splitter using dest bus
• splitters to combiner for outgress

duplicator stream block with enable bits

• The duplicator block has one input and many outputs.
• The inputs and outputs use the RV streaming standard (packet aware)
• The input is duplicated to each output with the associated enable bit set
• A change in the enable setting cannot affect an ongoing packet transfer

external source sink packet support

use Pothos::Packet to drive packet signals over the bus

unit test packets through splitter

unit test packets through combiner

multi-lane ingress module

• arbitrary number of lanes flow through
• ingress stream to splitter
• splitter to combiner per lane