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example/KR260: Add support for 10GBASE-R on KR260

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2025-02-22 23:01:52 -08:00
parent db8b1fc27e
commit 4a439783f1
10 changed files with 633 additions and 144 deletions
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158
example/KR260/fpga/rtl/fpga.sv
View File

@@ -24,7 +24,9 @@ module fpga #
// device family
parameter string FAMILY = "zynquplus",
// Use 90 degree clock for RGMII transmit
parameter logic USE_CLK90 = 1'b1
parameter logic USE_CLK90 = 1'b1,
// SFP rate selection (0 for 1G, 1 for 10G)
parameter logic SFP_RATE = 1'b1
)
(
/*
@@ -386,10 +388,13 @@ phy3_rx_ctl_idelay (
.CNTVALUEOUT()
);
// 1000BASE-X SFP
// SFP
wire sfp_tx_p_int;
wire sfp_tx_n_int;
wire sfp_gmii_clk_int;
wire sfp_gmii_rst_int;
wire sfp_gmii_clk_en_int;
wire sfp_gmii_clk_en_int = 1'b1;
wire [7:0] sfp_gmii_txd_int;
wire sfp_gmii_tx_en_int;
wire sfp_gmii_tx_er_int;
@@ -397,82 +402,92 @@ wire [7:0] sfp_gmii_rxd_int;
wire sfp_gmii_rx_dv_int;
wire sfp_gmii_rx_er_int;
wire sfp_gmii_txuserclk2;
wire sfp_gmii_resetdone;
if (SFP_RATE == 0) begin : sfp_phy
// 1000BASE-X
assign sfp_gmii_clk_int = sfp_gmii_txuserclk2;
wire sfp_gmii_txuserclk2;
wire sfp_gmii_resetdone;
taxi_sync_reset #(
.N(4)
)
sync_reset_sfp_inst (
.clk(sfp_gmii_clk_int),
.rst(rst_125mhz_int || !sfp_gmii_resetdone),
.out(sfp_gmii_rst_int)
);
assign sfp_gmii_clk_int = sfp_gmii_txuserclk2;
wire [15:0] sfp_status_vect;
taxi_sync_reset #(
.N(4)
)
sync_reset_sfp_inst (
.clk(sfp_gmii_clk_int),
.rst(rst_125mhz_int || !sfp_gmii_resetdone),
.out(sfp_gmii_rst_int)
);
wire sfp_status_link_status = sfp_status_vect[0];
wire sfp_status_link_synchronization = sfp_status_vect[1];
wire sfp_status_rudi_c = sfp_status_vect[2];
wire sfp_status_rudi_i = sfp_status_vect[3];
wire sfp_status_rudi_invalid = sfp_status_vect[4];
wire sfp_status_rxdisperr = sfp_status_vect[5];
wire sfp_status_rxnotintable = sfp_status_vect[6];
wire sfp_status_phy_link_status = sfp_status_vect[7];
wire [1:0] sfp_status_remote_fault_encdg = sfp_status_vect[9:8];
wire [1:0] sfp_status_speed = sfp_status_vect[11:10];
wire sfp_status_duplex = sfp_status_vect[12];
wire sfp_status_remote_fault = sfp_status_vect[13];
wire [1:0] sfp_status_pause = sfp_status_vect[15:14];
wire [15:0] sfp_status_vect;
wire [4:0] sfp_config_vect;
wire sfp_status_link_status = sfp_status_vect[0];
wire sfp_status_link_synchronization = sfp_status_vect[1];
wire sfp_status_rudi_c = sfp_status_vect[2];
wire sfp_status_rudi_i = sfp_status_vect[3];
wire sfp_status_rudi_invalid = sfp_status_vect[4];
wire sfp_status_rxdisperr = sfp_status_vect[5];
wire sfp_status_rxnotintable = sfp_status_vect[6];
wire sfp_status_phy_link_status = sfp_status_vect[7];
wire [1:0] sfp_status_remote_fault_encdg = sfp_status_vect[9:8];
wire [1:0] sfp_status_speed = sfp_status_vect[11:10];
wire sfp_status_duplex = sfp_status_vect[12];
wire sfp_status_remote_fault = sfp_status_vect[13];
wire [1:0] sfp_status_pause = sfp_status_vect[15:14];
assign sfp_config_vect[4] = 1'b0; // autonegotiation enable
assign sfp_config_vect[3] = 1'b0; // isolate
assign sfp_config_vect[2] = 1'b0; // power down
assign sfp_config_vect[1] = 1'b0; // loopback enable
assign sfp_config_vect[0] = 1'b0; // unidirectional enable
wire [4:0] sfp_config_vect;
basex_pcs_pma_0
sfp_pcspma (
.gtrefclk_p(sfp_mgt_refclk_p),
.gtrefclk_n(sfp_mgt_refclk_n),
.gtrefclk_out(),
.txn(sfp_tx_n),
.txp(sfp_tx_p),
.rxn(sfp_rx_n),
.rxp(sfp_rx_p),
.independent_clock_bufg(clk_62mhz_int),
.userclk_out(),
.userclk2_out(sfp_gmii_txuserclk2),
.rxuserclk_out(),
.rxuserclk2_out(),
.gtpowergood(),
.resetdone(sfp_gmii_resetdone),
.pma_reset_out(),
.mmcm_locked_out(),
.gmii_txd(sfp_gmii_txd_int),
.gmii_tx_en(sfp_gmii_tx_en_int),
.gmii_tx_er(sfp_gmii_tx_er_int),
.gmii_rxd(sfp_gmii_rxd_int),
.gmii_rx_dv(sfp_gmii_rx_dv_int),
.gmii_rx_er(sfp_gmii_rx_er_int),
.gmii_isolate(),
.configuration_vector(sfp_config_vect),
.status_vector(sfp_status_vect),
.reset(rst_125mhz_int),
.signal_detect(1'b1)
);
assign sfp_config_vect[4] = 1'b0; // autonegotiation enable
assign sfp_config_vect[3] = 1'b0; // isolate
assign sfp_config_vect[2] = 1'b0; // power down
assign sfp_config_vect[1] = 1'b0; // loopback enable
assign sfp_config_vect[0] = 1'b0; // unidirectional enable
assign sfp_gmii_clk_en_int = 1'b1;
basex_pcs_pma_0
sfp_pcspma (
.gtrefclk_p(sfp_mgt_refclk_p),
.gtrefclk_n(sfp_mgt_refclk_n),
.gtrefclk_out(),
.txn(sfp_tx_n),
.txp(sfp_tx_p),
.rxn(sfp_rx_n),
.rxp(sfp_rx_p),
.independent_clock_bufg(clk_62mhz_int),
.userclk_out(),
.userclk2_out(sfp_gmii_txuserclk2),
.rxuserclk_out(),
.rxuserclk2_out(),
.gtpowergood(),
.resetdone(sfp_gmii_resetdone),
.pma_reset_out(),
.mmcm_locked_out(),
.gmii_txd(sfp_gmii_txd_int),
.gmii_tx_en(sfp_gmii_tx_en_int),
.gmii_tx_er(sfp_gmii_tx_er_int),
.gmii_rxd(sfp_gmii_rxd_int),
.gmii_rx_dv(sfp_gmii_rx_dv_int),
.gmii_rx_er(sfp_gmii_rx_er_int),
.gmii_isolate(),
.configuration_vector(sfp_config_vect),
.status_vector(sfp_status_vect),
.reset(rst_125mhz_int),
.signal_detect(1'b1)
);
end else begin
// 10GBASE-R
assign sfp_tx_p = sfp_tx_p_int;
assign sfp_tx_n = sfp_tx_n_int;
end
fpga_core #(
.SIM(SIM),
.VENDOR(VENDOR),
.FAMILY(FAMILY),
.USE_CLK90(USE_CLK90)
.USE_CLK90(USE_CLK90),
.SFP_RATE(SFP_RATE)
)
core_inst (
/*
@@ -509,8 +524,15 @@ core_inst (
.phy3_reset_n(phy3_reset_n),
/*
* Ethernet: 1000BASE-X SFP
* Ethernet: SFP+
*/
.sfp_rx_p(sfp_rx_p),
.sfp_rx_n(sfp_rx_n),
.sfp_tx_p(sfp_tx_p_int),
.sfp_tx_n(sfp_tx_n_int),
.sfp_mgt_refclk_p(sfp_mgt_refclk_p),
.sfp_mgt_refclk_n(sfp_mgt_refclk_n),
.sfp_gmii_clk(sfp_gmii_clk_int),
.sfp_gmii_rst(sfp_gmii_rst_int),
.sfp_gmii_clk_en(sfp_gmii_clk_en_int),
@@ -520,10 +542,12 @@ core_inst (
.sfp_gmii_txd(sfp_gmii_txd_int),
.sfp_gmii_tx_en(sfp_gmii_tx_en_int),
.sfp_gmii_tx_er(sfp_gmii_tx_er_int),
.sfp_tx_disable(sfp_tx_disable),
.sfp_tx_fault(sfp_tx_fault_int),
.sfp_rx_los(sfp_rx_los_int),
.sfp_mod_abs(sfp_mod_abs_int),
.sfp_i2c_scl_i(sfp_i2c_scl_i),
.sfp_i2c_scl_o(sfp_i2c_scl_o),
.sfp_i2c_scl_t(sfp_i2c_scl_t),

421
example/KR260/fpga/rtl/fpga_core.sv
View File

@@ -24,7 +24,9 @@ module fpga_core #
// device family
parameter string FAMILY = "zynquplus",
// Use 90 degree clock for RGMII transmit
parameter logic USE_CLK90 = 1'b1
parameter logic USE_CLK90 = 1'b1,
// SFP rate selection (0 for 1G, 1 for 10G)
parameter logic SFP_RATE = 1'b1
)
(
/*
@@ -61,8 +63,15 @@ module fpga_core #
output wire logic phy3_reset_n,
/*
* Ethernet: 1000BASE-X SFP
* Ethernet: SFP+
*/
input wire logic sfp_rx_p,
input wire logic sfp_rx_n,
output wire logic sfp_tx_p,
output wire logic sfp_tx_n,
input wire logic sfp_mgt_refclk_p,
input wire logic sfp_mgt_refclk_n,
input wire logic sfp_gmii_clk,
input wire logic sfp_gmii_rst,
input wire logic sfp_gmii_clk_en,
@@ -77,6 +86,7 @@ module fpga_core #
input wire logic sfp_tx_fault,
input wire logic sfp_rx_los,
input wire logic sfp_mod_abs,
input wire logic sfp_i2c_scl_i,
output wire logic sfp_i2c_scl_o,
output wire logic sfp_i2c_scl_t,
@@ -222,74 +232,359 @@ phy3_eth_mac_inst (
// SFP+
assign sfp_tx_disable = 1'b0;
taxi_axis_if #(.DATA_W(8), .ID_W(8)) axis_sfp_eth();
taxi_axis_if #(.DATA_W(96), .KEEP_W(1), .ID_W(8)) axis_sfp_tx_cpl();
if (SFP_RATE == 0) begin : sfp_mac
taxi_eth_mac_1g_fifo #(
.PADDING_EN(1),
.MIN_FRAME_LEN(64),
.TX_FIFO_DEPTH(16384),
.TX_FRAME_FIFO(1),
.RX_FIFO_DEPTH(16384),
.RX_FRAME_FIFO(1)
)
sfp_eth_mac_inst (
.rx_clk(sfp_gmii_clk),
.rx_rst(sfp_gmii_rst),
.tx_clk(sfp_gmii_clk),
.tx_rst(sfp_gmii_rst),
.logic_clk(clk),
.logic_rst(rst),
taxi_axis_if #(.DATA_W(8), .ID_W(8)) axis_sfp_eth();
taxi_axis_if #(.DATA_W(96), .KEEP_W(1), .ID_W(8)) axis_sfp_tx_cpl();
/*
* Transmit interface (AXI stream)
*/
.s_axis_tx(axis_sfp_eth),
.m_axis_tx_cpl(axis_sfp_tx_cpl),
taxi_eth_mac_1g_fifo #(
.PADDING_EN(1),
.MIN_FRAME_LEN(64),
.TX_FIFO_DEPTH(16384),
.TX_FRAME_FIFO(1),
.RX_FIFO_DEPTH(16384),
.RX_FRAME_FIFO(1)
)
sfp_eth_mac_inst (
.rx_clk(sfp_gmii_clk),
.rx_rst(sfp_gmii_rst),
.tx_clk(sfp_gmii_clk),
.tx_rst(sfp_gmii_rst),
.logic_clk(clk),
.logic_rst(rst),
/*
* Receive interface (AXI stream)
*/
.m_axis_rx(axis_sfp_eth),
/*
* Transmit interface (AXI stream)
*/
.s_axis_tx(axis_sfp_eth),
.m_axis_tx_cpl(axis_sfp_tx_cpl),
/*
* GMII interface
*/
.gmii_rxd(sfp_gmii_rxd),
.gmii_rx_dv(sfp_gmii_rx_dv),
.gmii_rx_er(sfp_gmii_rx_er),
.gmii_txd(sfp_gmii_txd),
.gmii_tx_en(sfp_gmii_tx_en),
.gmii_tx_er(sfp_gmii_tx_er),
/*
* Receive interface (AXI stream)
*/
.m_axis_rx(axis_sfp_eth),
/*
* Control
*/
.rx_clk_enable(sfp_gmii_clk_en),
.tx_clk_enable(sfp_gmii_clk_en),
.rx_mii_select(1'b0),
.tx_mii_select(1'b0),
/*
* GMII interface
*/
.gmii_rxd(sfp_gmii_rxd),
.gmii_rx_dv(sfp_gmii_rx_dv),
.gmii_rx_er(sfp_gmii_rx_er),
.gmii_txd(sfp_gmii_txd),
.gmii_tx_en(sfp_gmii_tx_en),
.gmii_tx_er(sfp_gmii_tx_er),
/*
* Status
*/
.tx_error_underflow(),
.tx_fifo_overflow(),
.tx_fifo_bad_frame(),
.tx_fifo_good_frame(),
.rx_error_bad_frame(),
.rx_error_bad_fcs(),
.rx_fifo_overflow(),
.rx_fifo_bad_frame(),
.rx_fifo_good_frame(),
/*
* Control
*/
.rx_clk_enable(sfp_gmii_clk_en),
.tx_clk_enable(sfp_gmii_clk_en),
.rx_mii_select(1'b0),
.tx_mii_select(1'b0),
/*
* Configuration
*/
.cfg_ifg(8'd12),
.cfg_tx_enable(1'b1),
.cfg_rx_enable(1'b1)
);
/*
* Status
*/
.tx_error_underflow(),
.tx_fifo_overflow(),
.tx_fifo_bad_frame(),
.tx_fifo_good_frame(),
.rx_error_bad_frame(),
.rx_error_bad_fcs(),
.rx_fifo_overflow(),
.rx_fifo_bad_frame(),
.rx_fifo_good_frame(),
/*
* Configuration
*/
.cfg_ifg(8'd12),
.cfg_tx_enable(1'b1),
.cfg_rx_enable(1'b1)
);
end else begin : sfp_mac
wire sfp_tx_clk;
wire sfp_tx_rst;
wire sfp_rx_clk;
wire sfp_rx_rst;
wire sfp_rx_status;
wire sfp_gtpowergood;
wire sfp_mgt_refclk;
wire sfp_mgt_refclk_int;
wire sfp_mgt_refclk_bufg;
wire sfp_rst;
taxi_axis_if #(.DATA_W(64), .ID_W(8)) axis_sfp_tx[0:0]();
taxi_axis_if #(.DATA_W(96), .KEEP_W(1), .ID_W(8)) axis_sfp_tx_cpl[0:0]();
taxi_axis_if #(.DATA_W(64), .ID_W(8)) axis_sfp_rx[0:0]();
if (SIM) begin
assign sfp_gtpowergood = 1'b1;
assign sfp_mgt_refclk = sfp_mgt_refclk_p;
assign sfp_mgt_refclk_int = sfp_mgt_refclk_p;
assign sfp_mgt_refclk_bufg = sfp_mgt_refclk_int;
end else begin
IBUFDS_GTE4 ibufds_gte3_sfp_mgt_refclk_inst (
.I (sfp_mgt_refclk_p),
.IB (sfp_mgt_refclk_n),
.CEB (1'b0),
.O (sfp_mgt_refclk),
.ODIV2 (sfp_mgt_refclk_int)
);
BUFG_GT bufg_gt_sfp_mgt_refclk_inst (
.CE (sfp_gtpowergood),
.CEMASK (1'b1),
.CLR (1'b0),
.CLRMASK (1'b1),
.DIV (3'd0),
.I (sfp_mgt_refclk_int),
.O (sfp_mgt_refclk_bufg)
);
end
taxi_sync_reset #(
.N(4)
)
sfp_sync_reset_inst (
.clk(sfp_mgt_refclk_bufg),
.rst(rst),
.out(sfp_rst)
);
taxi_eth_mac_25g_us #(
.SIM(SIM),
.VENDOR(VENDOR),
.FAMILY(FAMILY),
.CNT(1),
// GT type
.GT_TYPE("GTH"),
// PHY parameters
.PADDING_EN(1'b1),
.DIC_EN(1'b1),
.MIN_FRAME_LEN(64),
.PTP_TS_EN(1'b0),
.PTP_TS_FMT_TOD(1'b1),
.PTP_TS_W(96),
.PRBS31_EN(1'b0),
.TX_SERDES_PIPELINE(1),
.RX_SERDES_PIPELINE(1),
.COUNT_125US(125000/6.4)
)
sfp_mac_inst (
.xcvr_ctrl_clk(clk),
.xcvr_ctrl_rst(sfp_rst),
/*
* Common
*/
.xcvr_gtpowergood_out(sfp_gtpowergood),
.xcvr_gtrefclk00_in(sfp_mgt_refclk),
.xcvr_qpll0lock_out(),
.xcvr_qpll0clk_out(),
.xcvr_qpll0refclk_out(),
/*
* Serial data
*/
.xcvr_txp(sfp_tx_p),
.xcvr_txn(sfp_tx_n),
.xcvr_rxp(sfp_rx_p),
.xcvr_rxn(sfp_rx_n),
/*
* MAC clocks
*/
.rx_clk(sfp_rx_clk),
.rx_rst_in('0),
.rx_rst_out(sfp_rx_rst),
.tx_clk(sfp_tx_clk),
.tx_rst_in('0),
.tx_rst_out(sfp_tx_rst),
.ptp_sample_clk('0),
/*
* Transmit interface (AXI stream)
*/
.s_axis_tx(axis_sfp_tx),
.m_axis_tx_cpl(axis_sfp_tx_cpl),
/*
* Receive interface (AXI stream)
*/
.m_axis_rx(axis_sfp_rx),
/*
* PTP clock
*/
.tx_ptp_ts('0),
.tx_ptp_ts_step('0),
.rx_ptp_ts('0),
.rx_ptp_ts_step('0),
/*
* Link-level Flow Control (LFC) (IEEE 802.3 annex 31B PAUSE)
*/
.tx_lfc_req('0),
.tx_lfc_resend('0),
.rx_lfc_en('0),
.rx_lfc_req(),
.rx_lfc_ack('0),
/*
* Priority Flow Control (PFC) (IEEE 802.3 annex 31D PFC)
*/
.tx_pfc_req('0),
.tx_pfc_resend('0),
.rx_pfc_en('0),
.rx_pfc_req(),
.rx_pfc_ack('0),
/*
* Pause interface
*/
.tx_lfc_pause_en('0),
.tx_pause_req('0),
.tx_pause_ack(),
/*
* Status
*/
.tx_start_packet(),
.tx_error_underflow(),
.rx_start_packet(),
.rx_error_count(),
.rx_error_bad_frame(),
.rx_error_bad_fcs(),
.rx_bad_block(),
.rx_sequence_error(),
.rx_block_lock(),
.rx_high_ber(),
.rx_status(sfp_rx_status),
.stat_tx_mcf(),
.stat_rx_mcf(),
.stat_tx_lfc_pkt(),
.stat_tx_lfc_xon(),
.stat_tx_lfc_xoff(),
.stat_tx_lfc_paused(),
.stat_tx_pfc_pkt(),
.stat_tx_pfc_xon(),
.stat_tx_pfc_xoff(),
.stat_tx_pfc_paused(),
.stat_rx_lfc_pkt(),
.stat_rx_lfc_xon(),
.stat_rx_lfc_xoff(),
.stat_rx_lfc_paused(),
.stat_rx_pfc_pkt(),
.stat_rx_pfc_xon(),
.stat_rx_pfc_xoff(),
.stat_rx_pfc_paused(),
/*
* Configuration
*/
.cfg_ifg('{1{8'd12}}),
.cfg_tx_enable('1),
.cfg_rx_enable('1),
.cfg_tx_prbs31_enable('0),
.cfg_rx_prbs31_enable('0),
.cfg_mcf_rx_eth_dst_mcast('{1{48'h01_80_C2_00_00_01}}),
.cfg_mcf_rx_check_eth_dst_mcast('1),
.cfg_mcf_rx_eth_dst_ucast('{1{48'd0}}),
.cfg_mcf_rx_check_eth_dst_ucast('0),
.cfg_mcf_rx_eth_src('{1{48'd0}}),
.cfg_mcf_rx_check_eth_src('0),
.cfg_mcf_rx_eth_type('{1{16'h8808}}),
.cfg_mcf_rx_opcode_lfc('{1{16'h0001}}),
.cfg_mcf_rx_check_opcode_lfc('1),
.cfg_mcf_rx_opcode_pfc('{1{16'h0101}}),
.cfg_mcf_rx_check_opcode_pfc('1),
.cfg_mcf_rx_forward('0),
.cfg_mcf_rx_enable('0),
.cfg_tx_lfc_eth_dst('{1{48'h01_80_C2_00_00_01}}),
.cfg_tx_lfc_eth_src('{1{48'h80_23_31_43_54_4C}}),
.cfg_tx_lfc_eth_type('{1{16'h8808}}),
.cfg_tx_lfc_opcode('{1{16'h0001}}),
.cfg_tx_lfc_en('0),
.cfg_tx_lfc_quanta('{1{16'hffff}}),
.cfg_tx_lfc_refresh('{1{16'h7fff}}),
.cfg_tx_pfc_eth_dst('{1{48'h01_80_C2_00_00_01}}),
.cfg_tx_pfc_eth_src('{1{48'h80_23_31_43_54_4C}}),
.cfg_tx_pfc_eth_type('{1{16'h8808}}),
.cfg_tx_pfc_opcode('{1{16'h0101}}),
.cfg_tx_pfc_en('0),
.cfg_tx_pfc_quanta('{1{'{8{16'hffff}}}}),
.cfg_tx_pfc_refresh('{1{'{8{16'h7fff}}}}),
.cfg_rx_lfc_opcode('{1{16'h0001}}),
.cfg_rx_lfc_en('0),
.cfg_rx_pfc_opcode('{1{16'h0101}}),
.cfg_rx_pfc_en('0)
);
taxi_axis_async_fifo #(
.DEPTH(16384),
.RAM_PIPELINE(2),
.FRAME_FIFO(1),
.USER_BAD_FRAME_VALUE(1'b1),
.USER_BAD_FRAME_MASK(1'b1),
.DROP_OVERSIZE_FRAME(1),
.DROP_BAD_FRAME(1),
.DROP_WHEN_FULL(1)
)
sfp_mac_fifo (
/*
* AXI4-Stream input (sink)
*/
.s_clk(sfp_rx_clk),
.s_rst(sfp_rx_rst),
.s_axis(axis_sfp_rx[0]),
/*
* AXI4-Stream output (source)
*/
.m_clk(sfp_tx_clk),
.m_rst(sfp_tx_rst),
.m_axis(axis_sfp_tx[0]),
/*
* Pause
*/
.s_pause_req(1'b0),
.s_pause_ack(),
.m_pause_req(1'b0),
.m_pause_ack(),
/*
* Status
*/
.s_status_depth(),
.s_status_depth_commit(),
.s_status_overflow(),
.s_status_bad_frame(),
.s_status_good_frame(),
.m_status_depth(),
.m_status_depth_commit(),
.m_status_overflow(),
.m_status_bad_frame(),
.m_status_good_frame()
);
end
endmodule