update issue2: MTC big read transasction

tests/cocotb/issues/issue2.py

@@ -24,39 +24,35 @@ def ms_add_cursor(name, time=None):
     ms.cmd(f"wave cursor add")
     ms.cmd(f'wave cursor configure -name {{{name}}} -time {{{time}}} -lock 1')
 
+async def get_dev_init(dut):
+    dev = NFBDevice(dut)
+    await dev.init()
+    return dev, dev.nfb
 
-async def wr_rd(c, length):
+
+async def wr_rd(c, length, offset=0):
     data = bytes([(j%256) for j in range(length)])
-    await e(c.write)(0, data)
-    rdata = await e(c.read)(0, length)
+    await e(c.write)(offset, data)
+    rdata = await e(c.read)(offset, length)
     assert rdata == data, f'writen: {list(data)}, readen: {list(rdata)}'
 
-@cocotb.test()
+
+@cocotb.test(timeout_time=400, timeout_unit='us')
 async def mtc_big_write_tr(dut):
-    ms_add_cursor("CQ WR REQ", "0.1us")
-    ms_add_cursor("CQ RD REQ", "0.104us")
-    ms_add_cursor("bad cq_data ", "1.42us")
+    dev, nfb = await get_dev_init(dut)
+    c = nfb.comp_open("cesnet,ofm,mi_test_space")
+
+    await wr_rd(c, 126, 3)
 
-    dev = NFBDevice(dut)
-    await dev.init()
-    c = dev.nfb.comp_open("cesnet,ofm,mi_test_space")
 
-    # This one will pass through
-    #await wr_rd(c, 32)
 
-    # This one transfers correctly 32B, 4B incorrectly and then stucks!
-    await with_timeout(
-        wr_rd(c, 36),
-        10, 'us',
-    )
-    )
 
 
 
 core = NFBDevice.core_instance_from_top(cocotb.top)
+core_path = ms.cocotb2path(core)
 
 pci_core = core.pcie_i.pcie_core_i
-
 MiBus(core.pcie_i, 'MI', 0, label='MI_PCIe').add_wave()
-ms.cmd(f"log -recursive {ms.cocotb2path(core)}/*")
-ms.cmd('add wave sim:/fpga/cm_i/pcie_i/pcie_ctrl_g(0)/pcie_ctrl_i/mtc_i/*')
+ms.cmd(f"log -recursive {core_path}/*")
+ms.cmd(f'add wave {core_path}/pcie_i/pcie_ctrl_g(0)/pcie_ctrl_i/mtc_i/*')