跳转至

输入查询内容
    本页内容

    具体阻塞 socket：IMP 连接与响应返回

    环境：VCS W-2024.09-SP2-8。1.2 使用 uvm-1.2，2.0 使用 uvm-ieee-2020-2.0。

    实验检查观察值是否符合预期；成功复现问题不代表问题已修复。

    结果对比

    观察内容 UVM 1.2 UVM 2.0
    阻塞 socket 返回 UVM_TLM_OK_RESPONSE（1=是） response_ok 1 1
    非法地址返回 UVM_TLM_ADDRESS_ERROR_RESPONSE（1=是） bad_address_rejected 1 1
    阻塞 socket 目标 IMP 的 b_transport 调用次数 target_calls 2 2

    运行命令

    目录与环境准备；从解包根目录执行：

    1
    uv run tools/run_uvm_review.py --case socket_migration_probe --variants 12,20

    最小源码

    socket_migration_probe.sv

    socket_migration_probe.sv 
     1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
    `timescale 1ns/1ps
`include "uvm_macros.svh"
import uvm_pkg::*;

class payload_target extends uvm_component;
  uvm_tlm_b_target_socket#(payload_target) socket;
  int calls;
  function new(string name, uvm_component parent);
    super.new(name, parent);
    socket = new("socket", this, this);
  endfunction
  virtual task b_transport(uvm_tlm_generic_payload tx, uvm_tlm_time delay);
    calls++;
    if (tx.get_command() == UVM_TLM_WRITE_COMMAND && tx.get_address() == 'h20)
      tx.set_response_status(UVM_TLM_OK_RESPONSE);
    else tx.set_response_status(UVM_TLM_ADDRESS_ERROR_RESPONSE);
  endtask
endclass

class socket_test extends uvm_test;
  `uvm_component_utils(socket_test)
  uvm_tlm_b_initiator_socket#() socket;
  payload_target target;
  function new(string name, uvm_component parent); super.new(name, parent); endfunction
  function void build_phase(uvm_phase phase);
    super.build_phase(phase);
    socket = new("socket", this);
    target = new("target", this);
  endfunction
  function void connect_phase(uvm_phase phase);
    socket.connect(target.socket);
  endfunction
  task run_phase(uvm_phase phase);
    uvm_tlm_generic_payload tx = new("tx");
    uvm_tlm_time delay = new("delay");
    phase.raise_objection(this);
    tx.set_command(UVM_TLM_WRITE_COMMAND);
    tx.set_address('h20);
    socket.b_transport(tx, delay);
    $display("REVIEW|response_ok|%0d", tx.get_response_status() == UVM_TLM_OK_RESPONSE);
    tx.set_address('h24);
    socket.b_transport(tx, delay);
    $display("REVIEW|bad_address_rejected|%0d", tx.get_response_status() == UVM_TLM_ADDRESS_ERROR_RESPONSE);
    $display("REVIEW|target_calls|%0d", target.calls);
    $display("REVIEW|done|1");
    phase.drop_objection(this);
  endtask
endclass

module socket_migration_probe;
  initial run_test("socket_test");
endmodule

    全部用例 · 证据摘要

    版本适用范围