Merge branch 'isa_mvb_meter' into 'devel'

Isa mvb meter

See merge request ndk/ndk-fpga!145

Author: radek-isa

comp/mvb_tools/ver/mvb_speed.sv

@@ -0,0 +1,97 @@
+/*
+ * mvb_speed.sv : Speed meter of Multi-Value bus
+ * Author(s): Radek Iša <[email protected]>
+ * Copyright (C) 2025 CESNET z. s. p. o.
+ * SPDX-License-Identifier: BSD-3-Clause
+*/
+
+
+class mvb_speed_data;
+    int unsigned data;
+
+    function new ();
+        this.reset();
+    endfunction
+
+    function int unsigned data_get();
+        return data;
+    endfunction
+
+    function void reset();
+        data = 0;
+    endfunction
+
+    function void add();
+        data += 1;
+    endfunction
+endclass
+
+class mvb_speed_cbs_rx #(ITEM_WIDTH) extends sv_common_pkg::DriverCbs;
+
+    mvb_speed_data data;
+
+    function new (mvb_speed_data data);
+        this.data = data;
+    endfunction
+
+    virtual task post_tx(sv_common_pkg::Transaction transaction, string inst);
+        MvbTransaction #(ITEM_WIDTH) tr;
+        $cast(tr, transaction);
+
+        data.add();
+    endtask
+endclass
+
+class mvb_speed_cbs_tx #(ITEM_WIDTH) extends sv_common_pkg::MonitorCbs;
+
+    mvb_speed_data data;
+
+    function new (mvb_speed_data data);
+        this.data = data;
+    endfunction
+
+    virtual task post_rx(sv_common_pkg::Transaction transaction, string inst);
+        MvbTransaction #(ITEM_WIDTH) tr;
+        $cast(tr, transaction);
+
+        data.add();
+    endtask
+endclass
+
+class mvb_speed #(type T_CBS);
+
+    string inst;
+    bit enabled;
+    mvb_speed_data data;
+    real           speed = 0;
+    T_CBS          cbs;
+    time delay = 10000ns;
+
+    function new(string inst = "");
+        data = new();
+        cbs  = new(data);
+        this.inst = inst;
+    endfunction
+
+    virtual task setEnabled();
+        enabled = 1;
+        fork
+            this.run();
+        join_none;
+    endtask
+
+    virtual task setDisabled();
+        enabled = 0;
+    endtask
+
+    virtual task run();
+        const int unsigned const_tns_to_mts = (1s/1ns)/1_000_000; //Transactions per ns to M transactions per second
+        while(enabled) begin
+            #(delay);
+
+            speed = real'(data.data_get())*const_tns_to_mts/(delay/1ns);
+            $write("%s speed %4.2f Mts (Mega transaction per seconds)\n", inst, speed);
+            data.reset();
+        end
+    endtask
+endclass

comp/mvb_tools/ver/sv_mvb_pkg.sv

@@ -27,5 +27,6 @@ package sv_mvb_pkg;
     `include "mvb_responder.sv"
     `include "mvb_driver.sv"
     `include "mvb_coverage.sv"
+    `include "mvb_speed.sv"
 
 endpackage

comp/ver/pcie/ram.sv

@@ -82,7 +82,7 @@ class ram #(ADDR_WIDTH, MPS, MRRS) extends sv_common_pkg::Driver;
         end
     endtask
 
-    function data_display(string dir, byte unsigned data[], logic [ADDR_WIDTH-1:0] addr, int unsigned tag);
+    function void data_display(string dir, byte unsigned data[], logic [ADDR_WIDTH-1:0] addr, int unsigned tag);
             $timeformat(-9, 3, " ns", 8);
             $write("Time: %t: ", $time);
             $write("PCIe %s %s : %6d B <= %x (tag %x)\n", inst, dir, data.size(), addr, tag);