Add a new method to io_service::send_io to check whether the destination
is ready for data, to make it possible to poll send_io rather than block
waiting for flow control credits.
- Implement I/O service detach link methods
- The I/O service manager instantiates new I/O services or connects
links to existing I/O services based on options provided by the user
in stream_args.
- Add a streamer ID parameter to methods to create transports so that
the I/O service manager can group transports appropriately when using
offload threads.
- Change X300 and MPMD to use I/O service manager to connect links to
I/O services.
- There is now a single I/O service manager per rfnoc_graph (and it is
also stored in the graph)
- The I/O service manager now also knows the device args for the
rfnoc_graph it was created with, and can make decisions based upon
those (e.g, use a specific I/O service for DPDK, share cores between
streamers, etc.)
- The I/O Service Manager does not get any decision logic with this
commit, though
- The MB ifaces for mpmd and x300 now access this global I/O service
manager
- Add configuration of link parameters with overrides
Co-Authored-By: Martin Braun <martin.braun@ettus.com>
Co-Authored-By: Aaron Rossetto <aaron.rossetto@ni.com>
The offload_io_service executes another I/O service instance within an
offload thread, and provides synchronization mechanisms to communicate
with clients. Frame buffers are passed from the offload thread to the
client and back via single-producer, single-consumer queues.
