eth: Support 32-bit sync gearbox in 10G MAC

Signed-off-by: Alex Forencich <alex@alexforencich.com>

src/eth/tb/taxi_axis_xgmii_rx_32/Makefile

@@ -35,6 +35,7 @@ VERILOG_SOURCES := $(call uniq_base,$(call process_f_files,$(VERILOG_SOURCES)))
 
 # module parameters
 export PARAM_DATA_W := 32
+export PARAM_GBX_IF_EN := 0
 export PARAM_PTP_TS_EN := 1
 export PARAM_PTP_TS_W := 96
 

src/eth/tb/taxi_axis_xgmii_rx_32/test_taxi_axis_xgmii_rx_32.py

@@ -39,6 +39,8 @@ class TB:
 
         self.ptp_clock = PtpClockSimTime(ts_tod=dut.ptp_ts, clock=dut.clk)
 
+        dut.xgmii_rx_valid.setimmediatevalue(1)
+
         dut.cfg_rx_max_pkt_len.setimmediatevalue(0)
         dut.cfg_rx_enable.setimmediatevalue(0)
 
@@ -305,6 +307,7 @@ def test_taxi_axis_xgmii_rx_32(request):
     parameters = {}
 
     parameters['DATA_W'] = 32
+    parameters['GBX_IF_EN'] = 0
     parameters['PTP_TS_EN'] = 1
     parameters['PTP_TS_W'] = 96
 

src/eth/tb/taxi_axis_xgmii_rx_32/test_taxi_axis_xgmii_rx_32.sv

@@ -19,6 +19,7 @@ module test_taxi_axis_xgmii_rx_32 #
 (
     /* verilator lint_off WIDTHTRUNC */
     parameter DATA_W = 32,
+    parameter logic GBX_IF_EN = 1'b0,
     parameter logic PTP_TS_EN = 1'b0,
     parameter PTP_TS_W = 96
     /* verilator lint_on WIDTHTRUNC */
@@ -33,6 +34,7 @@ logic rst;
 
 logic [DATA_W-1:0] xgmii_rxd;
 logic [CTRL_W-1:0] xgmii_rxc;
+logic xgmii_rx_valid;
 
 taxi_axis_if #(.DATA_W(DATA_W), .USER_EN(1), .USER_W(USER_W)) m_axis_rx();
 
@@ -61,6 +63,7 @@ logic stat_rx_err_preamble;
 taxi_axis_xgmii_rx_32 #(
     .DATA_W(DATA_W),
     .CTRL_W(CTRL_W),
+    .GBX_IF_EN(GBX_IF_EN),
     .PTP_TS_EN(PTP_TS_EN),
     .PTP_TS_W(PTP_TS_W)
 )
@@ -73,6 +76,7 @@ uut (
      */
     .xgmii_rxd(xgmii_rxd),
     .xgmii_rxc(xgmii_rxc),
+    .xgmii_rx_valid(xgmii_rx_valid),
 
     /*
      * AXI4-Stream output (source)

src/eth/tb/taxi_axis_xgmii_tx_32/Makefile

@@ -35,6 +35,8 @@ VERILOG_SOURCES := $(call uniq_base,$(call process_f_files,$(VERILOG_SOURCES)))
 
 # module parameters
 export PARAM_DATA_W := 32
+export PARAM_GBX_IF_EN := 0
+export PARAM_GBX_CNT := 1
 export PARAM_PADDING_EN := 1
 export PARAM_DIC_EN := 1
 export PARAM_MIN_FRAME_LEN := 64

src/eth/tb/taxi_axis_xgmii_tx_32/test_taxi_axis_xgmii_tx_32.py

@@ -520,6 +520,8 @@ def test_taxi_axis_xgmii_tx_32(request, dic_en):
     parameters = {}
 
     parameters['DATA_W'] = 32
+    parameters['GBX_IF_EN'] = 0
+    parameters['GBX_CNT'] = 1
     parameters['PADDING_EN'] = 1
     parameters['DIC_EN'] = dic_en
     parameters['MIN_FRAME_LEN'] = 64

src/eth/tb/taxi_axis_xgmii_tx_32/test_taxi_axis_xgmii_tx_32.sv

@@ -19,6 +19,8 @@ module test_taxi_axis_xgmii_tx_32 #
 (
     /* verilator lint_off WIDTHTRUNC */
     parameter DATA_W = 32,
+    parameter logic GBX_IF_EN = 1'b0,
+    parameter GBX_CNT = 1,
     parameter logic PADDING_EN = 1'b1,
     parameter logic DIC_EN = 1'b1,
     parameter MIN_FRAME_LEN = 64,
@@ -41,6 +43,10 @@ taxi_axis_if #(.DATA_W(PTP_TS_W), .KEEP_W(1), .ID_EN(1), .ID_W(TX_TAG_W)) m_axis
 
 logic [DATA_W-1:0] xgmii_txd;
 logic [CTRL_W-1:0] xgmii_txc;
+logic xgmii_tx_valid;
+logic [GBX_CNT-1:0] tx_gbx_req_sync;
+logic tx_gbx_req_stall;
+logic [GBX_CNT-1:0] tx_gbx_sync;
 
 logic [PTP_TS_W-1:0] ptp_ts;
 
@@ -64,6 +70,8 @@ logic stat_tx_err_underflow;
 taxi_axis_xgmii_tx_32 #(
     .DATA_W(DATA_W),
     .CTRL_W(CTRL_W),
+    .GBX_IF_EN(GBX_IF_EN),
+    .GBX_CNT(GBX_CNT),
     .PADDING_EN(PADDING_EN),
     .DIC_EN(DIC_EN),
     .MIN_FRAME_LEN(MIN_FRAME_LEN),
@@ -86,6 +94,10 @@ uut (
      */
     .xgmii_txd(xgmii_txd),
     .xgmii_txc(xgmii_txc),
+    .xgmii_tx_valid(xgmii_tx_valid),
+    .tx_gbx_req_sync(tx_gbx_req_sync),
+    .tx_gbx_req_stall(tx_gbx_req_stall),
+    .tx_gbx_sync(tx_gbx_sync),
 
     /*
      * PTP