rfnoc: Restrict to inline I/O service based on link restrictions

For links that do not support releasing buffers out of order, restrict
the I/O service manager to always select the inline I/O service.

2 files changed, 36 insertions, 0 deletions

diff --git a/host/lib/include/uhdlib/transport/link_if.hpp b/host/lib/include/uhdlib/transport/link_if.hpp
index 6f533603e..55755948c 100644
--- a/host/lib/include/uhdlib/transport/link_if.hpp
+++ b/host/lib/include/uhdlib/transport/link_if.hpp
@@ -57,6 +57,15 @@ public:
      */
     virtual adapter_id_t get_send_adapter_id() const = 0;
 
+    /*!
+     * Returns whether this link type supports releasing the frame buffers
+     * in an order different from that in which they were acquired.
+     */
+    virtual bool supports_send_buff_out_of_order() const
+    {
+        return true;
+    }
+
     send_link_if()                    = default;
     send_link_if(const send_link_if&) = delete;
     send_link_if& operator=(const send_link_if&) = delete;
@@ -102,6 +111,15 @@ public:
      */
     virtual adapter_id_t get_recv_adapter_id() const = 0;
 
+    /*!
+     * Returns whether this link type supports releasing the frame buffers
+     * in an order different from that in which they were acquired.
+     */
+    virtual bool supports_recv_buff_out_of_order() const
+    {
+        return true;
+    }
+
     recv_link_if()                    = default;
     recv_link_if(const recv_link_if&) = delete;
     recv_link_if& operator=(const recv_link_if&) = delete;
diff --git a/host/lib/include/uhdlib/transport/nirio_link.hpp b/host/lib/include/uhdlib/transport/nirio_link.hpp
index 055874146..2335e311c 100644
--- a/host/lib/include/uhdlib/transport/nirio_link.hpp
+++ b/host/lib/include/uhdlib/transport/nirio_link.hpp
@@ -104,6 +104,24 @@ public:
         return _adapter_id;
     }
 
+    /*!
+     * Returns whether this link type supports releasing the frame buffers
+     * in an order different from that in which they were acquired.
+     */
+    bool supports_send_buff_out_of_order() const
+    {
+        return false;
+    }
+
+    /*!
+     * Returns whether this link type supports releasing the frame buffers
+     * in an order different from that in which they were acquired.
+     */
+    bool supports_recv_buff_out_of_order() const
+    {
+        return false;
+    }
+
 private:
     using recv_link_base_t = recv_link_base<nirio_link>;
     using send_link_base_t = send_link_base<nirio_link>;