uhd: Introduce I/O service manager

- 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>

1 files changed, 8 insertions, 4 deletions

diff --git a/host/lib/rfnoc/link_stream_manager.cpp b/host/lib/rfnoc/link_stream_manager.cpp
index c0d79c519..59b80b59e 100644
--- a/host/lib/rfnoc/link_stream_manager.cpp
+++ b/host/lib/rfnoc/link_stream_manager.cpp
@@ -222,7 +222,8 @@ public:
         const sep_addr_t dst_addr,
         const sw_buff_t pyld_buff_fmt,
         const sw_buff_t mdata_buff_fmt,
-        const device_addr_t& xport_args)
+        const device_addr_t& xport_args,
+        const std::string& streamer_id)
     {
         _ensure_ep_is_reachable(dst_addr);
 
@@ -244,14 +245,16 @@ public:
             {src_epid, dst_epid},
             pyld_buff_fmt,
             mdata_buff_fmt,
-            xport_args);
+            xport_args,
+            streamer_id);
     }
 
     virtual chdr_rx_data_xport::uptr create_device_to_host_data_stream(
         sep_addr_t src_addr,
         const sw_buff_t pyld_buff_fmt,
         const sw_buff_t mdata_buff_fmt,
-        const device_addr_t& xport_args)
+        const device_addr_t& xport_args,
+        const std::string& streamer_id)
     {
         _ensure_ep_is_reachable(src_addr);
 
@@ -273,7 +276,8 @@ public:
             {src_epid, dst_epid},
             pyld_buff_fmt,
             mdata_buff_fmt,
-            xport_args);
+            xport_args,
+            streamer_id);
     }
 
 private: