xfcp: Add XFCP statistics counter module

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

rtl/xfcp/taxi_xfcp_mod_stats.f

@@ -0,0 +1,5 @@
+taxi_xfcp_mod_stats.sv
+taxi_xfcp_mod_axil.sv
+../stats/taxi_stats_counter.sv
+../axi/taxi_axil_if.sv
+../axis/taxi_axis_if.sv

rtl/xfcp/taxi_xfcp_mod_stats.sv

@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: CERN-OHL-S-2.0
+/*
+
+Copyright (c) 2025 FPGA Ninja, LLC
+
+Authors:
+- Alex Forencich
+
+*/
+
+`resetall
+`timescale 1ns / 1ps
+`default_nettype none
+
+/*
+ * XFCP statistics counter module
+ */
+module taxi_xfcp_mod_stats #
+(
+    parameter logic [15:0] XFCP_ID_TYPE = 16'h8080,
+    parameter XFCP_ID_STR = "Statistics",
+    parameter logic [8*16-1:0] XFCP_EXT_ID = 0,
+    parameter XFCP_EXT_ID_STR = "",
+    // Statistics counter (bits)
+    parameter STAT_COUNT_W = 32,
+    // Pipeline length
+    parameter STAT_PIPELINE = 2
+)
+(
+    input  wire logic  clk,
+    input  wire logic  rst,
+
+    /*
+     * XFCP upstream port
+     */
+    taxi_axis_if.snk   xfcp_usp_ds,
+    taxi_axis_if.src   xfcp_usp_us,
+
+    /*
+     * Statistics increment input
+     */
+    taxi_axis_if.snk   s_axis_stat
+);
+
+taxi_axil_if #(
+    .DATA_W(32),
+    .ADDR_W(s_axis_stat.ID_W+$clog2(STAT_COUNT_W))
+) axil_if();
+
+taxi_stats_counter #(
+    .STAT_COUNT_W(STAT_COUNT_W),
+    .PIPELINE(STAT_PIPELINE)
+)
+stats_counter_inst (
+    .clk(clk),
+    .rst(rst),
+
+    /*
+     * Statistics increment input
+     */
+    .s_axis_stat(s_axis_stat),
+
+    /*
+     * AXI Lite register interface
+     */
+    .s_axil_wr(axil_if),
+    .s_axil_rd(axil_if)
+);
+
+taxi_xfcp_mod_axil #(
+    .XFCP_ID_TYPE(XFCP_ID_TYPE),
+    .XFCP_ID_STR(XFCP_ID_STR),
+    .XFCP_EXT_ID(XFCP_EXT_ID),
+    .XFCP_EXT_ID_STR(XFCP_EXT_ID_STR),
+    .COUNT_SIZE(16)
+)
+xfcp_mod_axil_inst (
+    .clk(clk),
+    .rst(rst),
+
+    /*
+     * XFCP upstream port
+     */
+    .xfcp_usp_ds(xfcp_usp_ds),
+    .xfcp_usp_us(xfcp_usp_us),
+
+    /*
+     * AXI lite master interface
+     */
+    .m_axil_wr(axil_if),
+    .m_axil_rd(axil_if)
+);
+
+endmodule
+
+`resetall