perf(dma-calypte-ver): wait for send last packet before m_env.used() is

called

Author: radek-isa

comp/dma/dma_calypte/comp/rx/uvm/tbench/tests/base.sv

@@ -54,13 +54,14 @@ class base#(USER_REGIONS, USER_REGION_SIZE, USER_BLOCK_SIZE, USER_ITEM_WIDTH, PC
         end_time = $time();
         `uvm_info(this.get_full_name(), $sformatf("\n\tVirtual sequence finished (%0d ns). Environment used: %0d", end_time/1ns, m_env.used()), UVM_LOW);
 
-        while((end_time + 200us) > $time() && (m_env.used() != 0)) begin
+        #(2us); //wait to send last packet to DUT. This prevent when last packet is not DUT yet and m_env.used() is called.
+        // The last packet can be stored in MFB sequence and environment doesnt have to see it.
+        // this means that m_env.used() can return 0 and last packet can be send to DUT.
+        while((end_time + 200us) > $time() && m_env.used() != 0) begin
             #(600ns);
             `uvm_info(this.get_full_name(), "\n\tWaiting after virtual sequence finished.", UVM_MEDIUM);
         end
 
-        #(1us)
-
         for (int unsigned chan = 0; chan < CHANNELS; chan++) begin
             m_env.m_regmodel.m_regmodel.channel[chan].sent_packets_cnt.write(status_r, {32'h1, 32'h1});
             m_env.m_regmodel.m_regmodel.channel[chan].sent_packets_cnt.read(status_r, pkt_cnt[chan]);