module eth_mac_10g #
(
    parameter DATA_WIDTH = 64,
    parameter KEEP_WIDTH = (DATA_WIDTH/8),
    parameter CTRL_WIDTH = (DATA_WIDTH/8),
    parameter ENABLE_PADDING = 1,
    parameter ENABLE_DIC = 1,
    parameter MIN_FRAME_LENGTH = 64,
    parameter PTP_PERIOD_NS = 4'h6,
    parameter PTP_PERIOD_FNS = 16'h6666,
    parameter TX_PTP_TS_ENABLE = 0,
    parameter TX_PTP_TS_WIDTH = 96,
    parameter TX_PTP_TAG_ENABLE = TX_PTP_TS_ENABLE,
    parameter TX_PTP_TAG_WIDTH = 16,
    parameter RX_PTP_TS_ENABLE = 0,
    parameter RX_PTP_TS_WIDTH = 96,
    parameter TX_USER_WIDTH = (TX_PTP_TAG_ENABLE ? TX_PTP_TAG_WIDTH : 0) + 1,
    parameter RX_USER_WIDTH = (RX_PTP_TS_ENABLE ? RX_PTP_TS_WIDTH : 0) + 1
)
(
    input  wire                         rx_clk,
    input  wire                         rx_rst,
    input  wire                         tx_clk,
    input  wire                         tx_rst,

    /*
     * AXI input
     */
    input  wire [DATA_WIDTH-1:0]        tx_axis_tdata,
    input  wire [KEEP_WIDTH-1:0]        tx_axis_tkeep,
    input  wire                         tx_axis_tvalid,
    output wire                         tx_axis_tready,
    input  wire                         tx_axis_tlast,
    input  wire [TX_USER_WIDTH-1:0]     tx_axis_tuser,

    /*
     * AXI output
     */
    output wire [DATA_WIDTH-1:0]        rx_axis_tdata,
    output wire [KEEP_WIDTH-1:0]        rx_axis_tkeep,
    output wire                         rx_axis_tvalid,
    output wire                         rx_axis_tlast,
    output wire [RX_USER_WIDTH-1:0]     rx_axis_tuser,

    /*
     * XGMII interface
     */
    input  wire [DATA_WIDTH-1:0]        xgmii_rxd,
    input  wire [CTRL_WIDTH-1:0]        xgmii_rxc,
    output wire [DATA_WIDTH-1:0]        xgmii_txd,
    output wire [CTRL_WIDTH-1:0]        xgmii_txc,

    /*
     * PTP
     */
    input  wire [TX_PTP_TS_WIDTH-1:0]   tx_ptp_ts,
    input  wire [RX_PTP_TS_WIDTH-1:0]   rx_ptp_ts,
    output wire [TX_PTP_TS_WIDTH-1:0]   tx_axis_ptp_ts,
    output wire [TX_PTP_TAG_WIDTH-1:0]  tx_axis_ptp_ts_tag,
    output wire                         tx_axis_ptp_ts_valid,

    /*
     * Status
     */
    output wire [1:0]                   tx_start_packet,
    output wire                         tx_error_underflow,
    output wire [1:0]                   rx_start_packet,
    output wire                         rx_error_bad_frame,
    output wire                         rx_error_bad_fcs,

    /*
     * Configuration
     */
    input  wire [7:0]                   ifg_delay
);

// bus width assertions
initial begin
    if (DATA_WIDTH != 32 && DATA_WIDTH != 64) begin
        $error("Error: Interface width must be 32 or 64");
        $finish;
    end

    if (KEEP_WIDTH * 8 != DATA_WIDTH || CTRL_WIDTH * 8 != DATA_WIDTH) begin
        $error("Error: Interface requires byte (8-bit) granularity");
        $finish;
    end
end

generate

if (DATA_WIDTH == 64) begin

axis_xgmii_rx_64 #(
    .DATA_WIDTH(DATA_WIDTH),
    .KEEP_WIDTH(KEEP_WIDTH),
    .CTRL_WIDTH(CTRL_WIDTH),
    .PTP_PERIOD_NS(PTP_PERIOD_NS),
    .PTP_PERIOD_FNS(PTP_PERIOD_FNS),
    .PTP_TS_ENABLE(RX_PTP_TS_ENABLE),
    .PTP_TS_WIDTH(RX_PTP_TS_WIDTH),
    .USER_WIDTH(RX_USER_WIDTH)
)
axis_xgmii_rx_inst (
    .clk(rx_clk),
    .rst(rx_rst),
    .xgmii_rxd(xgmii_rxd),
    .xgmii_rxc(xgmii_rxc),
    .m_axis_tdata(rx_axis_tdata),
    .m_axis_tkeep(rx_axis_tkeep),
    .m_axis_tvalid(rx_axis_tvalid),
    .m_axis_tlast(rx_axis_tlast),
    .m_axis_tuser(rx_axis_tuser),
    .ptp_ts(rx_ptp_ts),
    .start_packet(rx_start_packet),
    .error_bad_frame(rx_error_bad_frame),
    .error_bad_fcs(rx_error_bad_fcs)
);

axis_xgmii_tx_64 #(
    .DATA_WIDTH(DATA_WIDTH),
    .KEEP_WIDTH(KEEP_WIDTH),
    .CTRL_WIDTH(CTRL_WIDTH),
    .ENABLE_PADDING(ENABLE_PADDING),
    .ENABLE_DIC(ENABLE_DIC),
    .MIN_FRAME_LENGTH(MIN_FRAME_LENGTH),
    .PTP_PERIOD_NS(PTP_PERIOD_NS),
    .PTP_PERIOD_FNS(PTP_PERIOD_FNS),
    .PTP_TS_ENABLE(TX_PTP_TS_ENABLE),
    .PTP_TS_WIDTH(TX_PTP_TS_WIDTH),
    .PTP_TAG_ENABLE(TX_PTP_TAG_ENABLE),
    .PTP_TAG_WIDTH(TX_PTP_TAG_WIDTH),
    .USER_WIDTH(TX_USER_WIDTH)
)
axis_xgmii_tx_inst (
    .clk(tx_clk),
    .rst(tx_rst),
    .s_axis_tdata(tx_axis_tdata),
    .s_axis_tkeep(tx_axis_tkeep),
    .s_axis_tvalid(tx_axis_tvalid),
    .s_axis_tready(tx_axis_tready),
    .s_axis_tlast(tx_axis_tlast),
    .s_axis_tuser(tx_axis_tuser),
    .xgmii_txd(xgmii_txd),
    .xgmii_txc(xgmii_txc),
    .ptp_ts(tx_ptp_ts),
    .m_axis_ptp_ts(tx_axis_ptp_ts),
    .m_axis_ptp_ts_tag(tx_axis_ptp_ts_tag),
    .m_axis_ptp_ts_valid(tx_axis_ptp_ts_valid),
    .ifg_delay(ifg_delay),
    .start_packet(tx_start_packet),
    .error_underflow(tx_error_underflow)
);

end else begin

axis_xgmii_rx_32 #(
    .DATA_WIDTH(DATA_WIDTH),
    .KEEP_WIDTH(KEEP_WIDTH),
    .CTRL_WIDTH(CTRL_WIDTH),
    .PTP_TS_ENABLE(RX_PTP_TS_ENABLE),
    .PTP_TS_WIDTH(RX_PTP_TS_WIDTH),
    .USER_WIDTH(RX_USER_WIDTH)
)
axis_xgmii_rx_inst (
    .clk(rx_clk),
    .rst(rx_rst),
    .xgmii_rxd(xgmii_rxd),
    .xgmii_rxc(xgmii_rxc),
    .m_axis_tdata(rx_axis_tdata),
    .m_axis_tkeep(rx_axis_tkeep),
    .m_axis_tvalid(rx_axis_tvalid),
    .m_axis_tlast(rx_axis_tlast),
    .m_axis_tuser(rx_axis_tuser),
    .ptp_ts(rx_ptp_ts),
    .start_packet(rx_start_packet[0]),
    .error_bad_frame(rx_error_bad_frame),
    .error_bad_fcs(rx_error_bad_fcs)
);

assign rx_start_packet[1] = 1'b0;

axis_xgmii_tx_32 #(
    .DATA_WIDTH(DATA_WIDTH),
    .KEEP_WIDTH(KEEP_WIDTH),
    .CTRL_WIDTH(CTRL_WIDTH),
    .ENABLE_PADDING(ENABLE_PADDING),
    .ENABLE_DIC(ENABLE_DIC),
    .MIN_FRAME_LENGTH(MIN_FRAME_LENGTH),
    .PTP_TS_ENABLE(TX_PTP_TS_ENABLE),
    .PTP_TS_WIDTH(TX_PTP_TS_WIDTH),
    .PTP_TAG_ENABLE(TX_PTP_TAG_ENABLE),
    .PTP_TAG_WIDTH(TX_PTP_TAG_WIDTH),
    .USER_WIDTH(TX_USER_WIDTH)
)
axis_xgmii_tx_inst (
    .clk(tx_clk),
    .rst(tx_rst),
    .s_axis_tdata(tx_axis_tdata),
    .s_axis_tkeep(tx_axis_tkeep),
    .s_axis_tvalid(tx_axis_tvalid),
    .s_axis_tready(tx_axis_tready),
    .s_axis_tlast(tx_axis_tlast),
    .s_axis_tuser(tx_axis_tuser),
    .xgmii_txd(xgmii_txd),
    .xgmii_txc(xgmii_txc),
    .ptp_ts(tx_ptp_ts),
    .m_axis_ptp_ts(tx_axis_ptp_ts),
    .m_axis_ptp_ts_tag(tx_axis_ptp_ts_tag),
    .m_axis_ptp_ts_valid(tx_axis_ptp_ts_valid),
    .ifg_delay(ifg_delay),
    .start_packet(tx_start_packet[0])
);

assign tx_start_packet[1] = 1'b0;

end

endgenerate

endmodule