Util axis fifo tb

library/drivers/common/scoreboard.sv

@@ -2,27 +2,63 @@
 
 package scoreboard_pkg;
 
-  import xil_common_vip_pkg::*;
-  import axi4stream_vip_pkg::*;
-  import axi_vip_pkg::*;
   import logger_pkg::*;
-  import x_monitor_pkg::*;
-  import mailbox_pkg::*;
+  import adi_common_pkg::*;
+  import pub_sub_pkg::*;
 
-  class scoreboard extends adi_component;
+  class scoreboard #(type data_type = int) extends adi_component;
 
-    typedef enum bit { CYCLIC=0, ONESHOT } sink_type_t;
-    protected sink_type_t sink_type;
+    class subscriber_class extends adi_subscriber #(data_type);
+
+      protected scoreboard #(data_type) scoreboard_ref;
+
+      protected data_type byte_stream [$];
+
+      function new(
+        input string name,
+        input scoreboard #(data_type) scoreboard_ref,
+        input adi_component parent = null);
+
+        super.new(name, parent);
+
+        this.scoreboard_ref = scoreboard_ref;
+      endfunction: new
+
+      virtual function void update(input data_type data [$]);
+        this.info($sformatf("Data received: %d", data.size()), ADI_VERBOSITY_MEDIUM);
+        while (data.size()) begin
+          this.byte_stream.push_back(data.pop_front());
+        end
+
+        if (this.scoreboard_ref.get_enabled()) begin
+          this.scoreboard_ref.compare_transaction();
+        end
+      endfunction: update
+
+      function data_type get_data();
+        return this.byte_stream.pop_front();
+      endfunction: get_data
+
+      function void put_data(data_type data);
+        this.byte_stream.push_back(data);
+      endfunction: put_data
 
-    // List of analysis ports from the monitors
-    protected x_monitor source_monitor;
-    protected x_monitor sink_monitor;
+      function int get_size();
+        return this.byte_stream.size();
+      endfunction: get_size
 
-    protected logic [7:0] source_byte_stream [$];
-    protected logic [7:0] sink_byte_stream [$];
+      function void clear_stream();
+        this.byte_stream.delete();
+      endfunction: clear_stream
 
-    protected int source_byte_stream_size;
-    protected int sink_byte_stream_size;
+    endclass: subscriber_class
+
+
+    subscriber_class subscriber_source;
+    subscriber_class subscriber_sink;
+
+    typedef enum bit { CYCLIC=0, ONESHOT } sink_type_t;
+    protected sink_type_t sink_type;
 
     // counters and synchronizers
     protected bit enabled;
@@ -31,8 +67,6 @@ package scoreboard_pkg;
     // protected event end_of_first_cycle;
     protected event byte_streams_empty;
     protected event stop_scoreboard;
-    protected event source_transaction_event;
-    protected event sink_transaction_event;
 
     // constructor
     function new(
@@ -41,186 +75,86 @@ package scoreboard_pkg;
 
       super.new(name, parent);
 
+      this.subscriber_source = new("Subscriber Source", this);
+      this.subscriber_sink = new("Subscriber Sink", this);
+
       this.enabled = 0;
       this.sink_type = ONESHOT;
-      this.source_byte_stream_size = 0;
-      this.sink_byte_stream_size = 0;
       this.byte_streams_empty_sig = 1;
-
     endfunction: new
 
-    // connect the analysis ports of the monitor to the scoreboard
-    function void set_source_stream(
-      x_monitor source_monitor);
-
-      this.source_monitor = source_monitor;
-
-    endfunction: set_source_stream
-
-    function void set_sink_stream(
-      x_monitor sink_monitor);
-
-      this.sink_monitor = sink_monitor;
-
-    endfunction: set_sink_stream 
-
     // run task
     task run();
-
-      fork
-        this.enabled = 1;
-        this.get_source_transaction();
-        this.get_sink_transaction();
-        this.compare_transaction();
-      join_none
-
+      this.enabled = 1;
+
+      this.info($sformatf("Scoreboard enabled"), ADI_VERBOSITY_MEDIUM);
     endtask: run
 
     // stop scoreboard
     task stop();
       this.enabled = 0;
-      ->>stop_scoreboard;
       this.clear_streams();
-      #1step;
+      this.byte_streams_empty_sig = 1;
     endtask: stop
 
+    function bit get_enabled();
+      return this.enabled;
+    endfunction: get_enabled
+
     // set sink type
     function void set_sink_type(input bit sink_type);
-
       if (!this.enabled) begin
         this.sink_type = sink_type_t'(sink_type);
       end else begin
         this.error($sformatf("Can not configure sink_type while scoreboard is running."));
       end
-
     endfunction: set_sink_type
 
-    // clear source and sink byte streams
-    function void clear_streams();
-      this.source_byte_stream.delete();
-      this.sink_byte_stream.delete();
-
-      this.source_byte_stream_size = 0;
-      this.sink_byte_stream_size = 0;
-    endfunction: clear_streams
-
     // get sink type
     function bit get_sink_type();
       return this.sink_type;
-    endfunction
+    endfunction: get_sink_type
+
+    // clear source and sink byte streams
+    protected function void clear_streams();
+      this.subscriber_source.clear_stream();
+      this.subscriber_source.clear_stream();
+    endfunction: clear_streams
 
     // wait until source and sink byte streams are empty, full check
     task wait_until_complete();
       if (this.byte_streams_empty_sig)
         return;
-      @byte_streams_empty;
-    endtask
-
-    // get transaction data from source monitor
-    task get_source_transaction();
-
-      logic [7:0] source_byte;
-
-      forever begin
-        fork begin
-          fork
-            this.source_monitor.wait_for_transaction_event();
-            @stop_scoreboard;
-          join_any
-          disable fork;
-        end join
-        if (this.enabled == 0)
-          break;
-
-        this.source_monitor.get_key();
-        for (int i=0; i<this.source_monitor.mailbox.num(); ++i) begin
-          this.source_monitor.mailbox.get(source_byte);
-          this.source_monitor.mailbox.put(source_byte);
-          this.source_byte_stream.push_front(source_byte);
-        end
-        this.source_byte_stream_size += this.source_monitor.mailbox.num();
-        this.info($sformatf("Source transaction received, size: %d - %d", this.source_monitor.mailbox.num(), this.source_byte_stream_size), ADI_VERBOSITY_MEDIUM);
-        ->>source_transaction_event;
-        this.source_monitor.put_key();
-      end
-
-    endtask: get_source_transaction
-
-    // get transaction data from sink monitor
-    task get_sink_transaction();
-
-      logic [7:0] sink_byte;
-
-      forever begin
-        fork begin
-          fork
-            this.sink_monitor.wait_for_transaction_event();
-            @stop_scoreboard;
-          join_any
-          disable fork;
-        end join
-
-        if (this.enabled == 0)
-          break;
-
-        this.sink_monitor.get_key();
-        for (int i=0; i<this.sink_monitor.mailbox.num(); ++i) begin
-          this.sink_monitor.mailbox.get(sink_byte);
-          this.sink_monitor.mailbox.put(sink_byte);
-          this.sink_byte_stream.push_front(sink_byte);
-        end
-        this.sink_byte_stream_size += this.sink_monitor.mailbox.num();
-        this.info($sformatf("Sink transaction received, size: %d - %d", this.sink_monitor.mailbox.num(), this.sink_byte_stream_size), ADI_VERBOSITY_MEDIUM);
-        ->>sink_transaction_event;
-        this.sink_monitor.put_key();
-      end
-
-    endtask: get_sink_transaction
+      @this.byte_streams_empty;
+    endtask: wait_until_complete
 
     // compare the collected data
-    virtual task compare_transaction();
-
-      logic [7:0] source_byte;
-      logic [7:0] sink_byte;
-
-      this.info($sformatf("Started"), ADI_VERBOSITY_MEDIUM);
-
-      forever begin : tx_path
-        if (this.enabled == 0)
-          break;
-        if ((this.source_byte_stream_size > 0) &&
-              (this.sink_byte_stream_size > 0)) begin
-          byte_streams_empty_sig = 0;
-          source_byte = this.source_byte_stream.pop_back();
-          if (this.sink_type == CYCLIC)
-            this.source_byte_stream.push_front(source_byte);
-          else
-            this.source_byte_stream_size--;
-          sink_byte = this.sink_byte_stream.pop_back();
-          this.sink_byte_stream_size--;
-          this.info($sformatf("Source-sink data: exp %h - rcv %h", source_byte, sink_byte), ADI_VERBOSITY_MEDIUM);
-          if (source_byte != sink_byte) begin
-            this.error($sformatf("Failed at: exp %h - rcv %h", source_byte, sink_byte));
-          end
-        end else begin
-          if ((this.source_byte_stream_size == 0) &&
-              (this.sink_byte_stream_size == 0)) begin
-            byte_streams_empty_sig = 1;
-            ->>byte_streams_empty;
-          end
-          fork begin
-            fork
-              @source_transaction_event;
-              @sink_transaction_event;
-              @stop_scoreboard;
-            join_any
-            byte_streams_empty_sig = 0;
-            disable fork;
-          end join
+    virtual function void compare_transaction();
+      data_type source_byte;
+      data_type sink_byte;
+
+      if (this.enabled == 0)
+        return;
+
+      while ((this.subscriber_source.get_size() > 0) &&
+            (this.subscriber_sink.get_size() > 0)) begin
+        byte_streams_empty_sig = 0;
+        source_byte = this.subscriber_source.get_data();
+        if (this.sink_type == CYCLIC)
+          this.subscriber_source.put_data(source_byte);
+        sink_byte = this.subscriber_sink.get_data();
+        this.info($sformatf("Source-sink data: exp %h - rcv %h", source_byte, sink_byte), ADI_VERBOSITY_MEDIUM);
+        if (source_byte != sink_byte) begin
+          this.error($sformatf("Failed at: exp %h - rcv %h", source_byte, sink_byte));
         end
       end
 
-    endtask /* compare_transaction */
+      if ((this.subscriber_source.get_size() == 0) &&
+          (this.subscriber_sink.get_size() == 0)) begin
+        this.byte_streams_empty_sig = 1;
+        ->this.byte_streams_empty;
+      end
+    endfunction: compare_transaction
 
   endclass