From 1b28dc4b9a0a4abc11b0557a63f937840264ae14 Mon Sep 17 00:00:00 2001 From: Alex Forencich Date: Mon, 7 Apr 2025 13:32:03 -0700 Subject: [PATCH] eth: Check stats outputs in AXI stream GMII RX module testbench Signed-off-by: Alex Forencich --- .../test_taxi_axis_gmii_rx.py | 74 +++++++++++++++++++ 1 file changed, 74 insertions(+) diff --git a/tb/eth/taxi_axis_gmii_rx/test_taxi_axis_gmii_rx.py b/tb/eth/taxi_axis_gmii_rx/test_taxi_axis_gmii_rx.py index 760de99..2083dc5 100644 --- a/tb/eth/taxi_axis_gmii_rx/test_taxi_axis_gmii_rx.py +++ b/tb/eth/taxi_axis_gmii_rx/test_taxi_axis_gmii_rx.py @@ -48,6 +48,26 @@ class TB: dut.cfg_rx_max_pkt_len.setimmediatevalue(0) dut.cfg_rx_enable.setimmediatevalue(0) + self.stats = {} + self.stats["rx_start_packet"] = 0 + self.stats["stat_rx_byte"] = 0 + self.stats["stat_rx_pkt_len"] = 0 + self.stats["stat_rx_pkt_fragment"] = 0 + self.stats["stat_rx_pkt_jabber"] = 0 + self.stats["stat_rx_pkt_ucast"] = 0 + self.stats["stat_rx_pkt_mcast"] = 0 + self.stats["stat_rx_pkt_bcast"] = 0 + self.stats["stat_rx_pkt_vlan"] = 0 + self.stats["stat_rx_pkt_good"] = 0 + self.stats["stat_rx_pkt_bad"] = 0 + self.stats["stat_rx_err_oversize"] = 0 + self.stats["stat_rx_err_bad_fcs"] = 0 + self.stats["stat_rx_err_bad_block"] = 0 + self.stats["stat_rx_err_framing"] = 0 + self.stats["stat_rx_err_preamble"] = 0 + + cocotb.start_soon(self._run_stats_counters()) + async def reset(self): self.dut.rst.setimmediatevalue(0) await RisingEdge(self.dut.clk) @@ -59,6 +79,15 @@ class TB: await RisingEdge(self.dut.clk) await RisingEdge(self.dut.clk) + for stat in self.stats: + self.stats[stat] = 0 + + async def _run_stats_counters(self): + while True: + await RisingEdge(self.dut.clk) + for stat in self.stats: + self.stats[stat] += int(getattr(self.dut, stat).value) + def set_enable_generator(self, generator=None): if self._enable_cr is not None: self._enable_cr.kill() @@ -95,9 +124,14 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12, enable_ test_frames = [payload_data(x) for x in payload_lengths()] tx_frames = [] + total_bytes = 0 + total_pkts = 0 + for test_data in test_frames: test_frame = GmiiFrame.from_payload(test_data, tx_complete=tx_frames.append) await tb.source.send(test_frame) + total_bytes += max(len(test_data), 60)+4 + total_pkts += 1 for test_data in test_frames: rx_frame = await tb.sink.recv() @@ -119,6 +153,26 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12, enable_ assert tb.sink.empty() + for stat, val in tb.stats.items(): + tb.log.info("%s: %d", stat, val) + + assert tb.stats["rx_start_packet"] == total_pkts + assert tb.stats["stat_rx_byte"] == total_bytes + assert tb.stats["stat_rx_pkt_len"] == total_bytes + assert tb.stats["stat_rx_pkt_fragment"] == 0 + assert tb.stats["stat_rx_pkt_jabber"] == 0 + assert tb.stats["stat_rx_pkt_ucast"] == total_pkts + assert tb.stats["stat_rx_pkt_mcast"] == 0 + assert tb.stats["stat_rx_pkt_bcast"] == 0 + assert tb.stats["stat_rx_pkt_vlan"] == 0 + assert tb.stats["stat_rx_pkt_good"] == total_pkts + assert tb.stats["stat_rx_pkt_bad"] == 0 + assert tb.stats["stat_rx_err_oversize"] == 0 + assert tb.stats["stat_rx_err_bad_fcs"] == 0 + assert tb.stats["stat_rx_err_bad_block"] == 0 + assert tb.stats["stat_rx_err_framing"] == 0 + assert tb.stats["stat_rx_err_preamble"] == 0 + await RisingEdge(dut.clk) await RisingEdge(dut.clk) @@ -157,6 +211,26 @@ async def run_test_oversize(dut, ifg=12, enable_gen=None, mii_sel=False): assert tb.sink.empty() + for stat, val in tb.stats.items(): + tb.log.info("%s: %d", stat, val) + + assert tb.stats["rx_start_packet"] == 3 + assert tb.stats["stat_rx_byte"] == 64*2+1519 + assert tb.stats["stat_rx_pkt_len"] == 64*2+1519 + assert tb.stats["stat_rx_pkt_fragment"] == 0 + assert tb.stats["stat_rx_pkt_jabber"] == 0 + assert tb.stats["stat_rx_pkt_ucast"] == 3 + assert tb.stats["stat_rx_pkt_mcast"] == 0 + assert tb.stats["stat_rx_pkt_bcast"] == 0 + assert tb.stats["stat_rx_pkt_vlan"] == 0 + assert tb.stats["stat_rx_pkt_good"] == 2 + assert tb.stats["stat_rx_pkt_bad"] == 1 + assert tb.stats["stat_rx_err_oversize"] == 1 + assert tb.stats["stat_rx_err_bad_fcs"] == 0 + assert tb.stats["stat_rx_err_bad_block"] == 0 + assert tb.stats["stat_rx_err_framing"] == 0 + assert tb.stats["stat_rx_err_preamble"] == 0 + await RisingEdge(dut.clk) await RisingEdge(dut.clk)