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, 6 insertions, 4 deletions

diff --git a/host/lib/rfnoc/graph_stream_manager.cpp b/host/lib/rfnoc/graph_stream_manager.cpp
index dba913998..f8acab9f2 100644
--- a/host/lib/rfnoc/graph_stream_manager.cpp
+++ b/host/lib/rfnoc/graph_stream_manager.cpp
@@ -189,7 +189,8 @@ public:
         const sw_buff_t pyld_buff_fmt,
         const sw_buff_t mdata_buff_fmt,
         const uhd::transport::adapter_id_t adapter,
-        const device_addr_t& xport_args)
+        const device_addr_t& xport_args,
+        const std::string& streamer_id)
     {
         device_id_t dev = _check_dst_and_find_src(
             src_addr, adapter, uhd::transport::link_type_t::RX_DATA);
@@ -198,7 +199,7 @@ public:
         allocs.rx++;
         _alloc_map[chosen] = allocs;
         return _link_mgrs.at(dev)->create_device_to_host_data_stream(
-            src_addr, pyld_buff_fmt, mdata_buff_fmt, xport_args);
+            src_addr, pyld_buff_fmt, mdata_buff_fmt, xport_args, streamer_id);
     }
 
     virtual chdr_tx_data_xport::uptr create_host_to_device_data_stream(
@@ -206,7 +207,8 @@ public:
         const sw_buff_t pyld_buff_fmt,
         const sw_buff_t mdata_buff_fmt,
         const uhd::transport::adapter_id_t adapter,
-        const device_addr_t& xport_args)
+        const device_addr_t& xport_args,
+        const std::string& streamer_id)
     {
         device_id_t dev = _check_dst_and_find_src(
             dst_addr, adapter, uhd::transport::link_type_t::TX_DATA);
@@ -215,7 +217,7 @@ public:
         allocs.tx++;
         _alloc_map[chosen] = allocs;
         return _link_mgrs.at(dev)->create_host_to_device_data_stream(
-            dst_addr, pyld_buff_fmt, mdata_buff_fmt, xport_args);
+            dst_addr, pyld_buff_fmt, mdata_buff_fmt, xport_args, streamer_id);
     }
 
     std::vector<uhd::transport::adapter_id_t> get_adapters(sep_addr_t addr) const