diff options
Diffstat (limited to 'usrp2/fpga/simple_gemac/simple_gemac_wrapper.v')
| -rw-r--r-- | usrp2/fpga/simple_gemac/simple_gemac_wrapper.v | 106 |
1 files changed, 55 insertions, 51 deletions
diff --git a/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v b/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v index 8da77f096..de445476c 100644 --- a/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v +++ b/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v @@ -1,44 +1,46 @@ module simple_gemac_wrapper - (input clk125, input reset, - // GMII - output GMII_GTX_CLK, output GMII_TX_EN, output GMII_TX_ER, output [7:0] GMII_TXD, - input GMII_RX_CLK, input GMII_RX_DV, input GMII_RX_ER, input [7:0] GMII_RXD, - - // Flow Control Interface - input pause_req, input [15:0] pause_time, - - // Client FIFO Interfaces - input sys_clk, - output [35:0] rx_f36_data, output rx_f36_src_rdy, input rx_f36_dst_rdy, - input [35:0] tx_f36_data, input tx_f36_src_rdy, output tx_f36_dst_rdy, - - // Wishbone Interface - input wb_clk, input wb_rst, input wb_stb, input wb_cyc, output wb_ack, input wb_we, - input [7:0] wb_adr, input [31:0] wb_dat_i, output [31:0] wb_dat_o, - - // MIIM - inout mdio, output mdc, - output [31:0] debug); - - wire [7:0] rx_data, tx_data; - wire tx_clk, tx_valid, tx_error, tx_ack; - wire rx_clk, rx_valid, rx_error, rx_ack; - - wire [47:0] ucast_addr, mcast_addr; - wire pass_ucast, pass_mcast, pass_bcast, pass_pause, pass_all, pause_en; - - wire rst_rxclk, rst_txclk; + #(parameter RXFIFOSIZE=9, + parameter TXFIFOSIZE=6) + (input clk125, input reset, + // GMII + output GMII_GTX_CLK, output GMII_TX_EN, output GMII_TX_ER, output [7:0] GMII_TXD, + input GMII_RX_CLK, input GMII_RX_DV, input GMII_RX_ER, input [7:0] GMII_RXD, + + // Client FIFO Interfaces + input sys_clk, + output [35:0] rx_f36_data, output rx_f36_src_rdy, input rx_f36_dst_rdy, + input [35:0] tx_f36_data, input tx_f36_src_rdy, output tx_f36_dst_rdy, + + // Wishbone Interface + input wb_clk, input wb_rst, input wb_stb, input wb_cyc, output wb_ack, input wb_we, + input [7:0] wb_adr, input [31:0] wb_dat_i, output [31:0] wb_dat_o, + + // MIIM + inout mdio, output mdc, + output [31:0] debug); + + wire [7:0] rx_data, tx_data; + wire tx_clk, tx_valid, tx_error, tx_ack; + wire rx_clk, rx_valid, rx_error, rx_ack; + + wire [47:0] ucast_addr, mcast_addr; + wire pass_ucast, pass_mcast, pass_bcast, pass_pause, pass_all; + wire pause_request_en, pause_respect_en; + wire [15:0] pause_time, pause_thresh, pause_time_req, rx_fifo_space; + + wire tx_reset, rx_reset; reset_sync reset_sync_tx (.clk(tx_clk),.reset_in(reset),.reset_out(tx_reset)); reset_sync reset_sync_rx (.clk(rx_clk),.reset_in(reset),.reset_out(rx_reset)); - + simple_gemac simple_gemac (.clk125(clk125), .reset(reset), .GMII_GTX_CLK(GMII_GTX_CLK), .GMII_TX_EN(GMII_TX_EN), .GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD), .GMII_RX_CLK(GMII_RX_CLK), .GMII_RX_DV(GMII_RX_DV), .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD), - .pause_req(pause_req), .pause_time(pause_time), .pause_en(pause_en), + .pause_req(pause_req), .pause_time_req(pause_time_req), + .pause_respect_en(pause_respect_en), .ucast_addr(ucast_addr), .mcast_addr(mcast_addr), .pass_ucast(pass_ucast), .pass_mcast(pass_mcast), .pass_bcast(pass_bcast), .pass_pause(pass_pause), .pass_all(pass_all), @@ -55,18 +57,20 @@ module simple_gemac_wrapper .mdio(mdio), .mdc(mdc), .ucast_addr(ucast_addr), .mcast_addr(mcast_addr), .pass_ucast(pass_ucast), .pass_mcast(pass_mcast), .pass_bcast(pass_bcast), - .pass_pause(pass_pause), .pass_all(pass_all), .pause_en(pause_en) ); + .pass_pause(pass_pause), .pass_all(pass_all), + .pause_respect_en(pause_respect_en), .pause_request_en(pause_request_en), + .pause_time(pause_time), .pause_thresh(pause_thresh) ); // RX FIFO Chain - wire rx_ll_sof, rx_ll_eof, rx_ll_src_rdy, rx_ll_dst_rdy; - - wire rx_ll_sof2, rx_ll_eof2, rx_ll_src_rdy2, rx_ll_dst_rdy2; - wire rx_ll_sof2_n, rx_ll_eof2_n, rx_ll_src_rdy2_n, rx_ll_dst_rdy2_n; - - wire [7:0] rx_ll_data, rx_ll_data2; - - wire [35:0] rx_f36_data_int1; - wire rx_f36_src_rdy_int1, rx_f36_dst_rdy_int1; + wire rx_ll_sof, rx_ll_eof, rx_ll_src_rdy, rx_ll_dst_rdy; + + wire rx_ll_sof2, rx_ll_eof2, rx_ll_src_rdy2, rx_ll_dst_rdy2; + wire rx_ll_sof2_n, rx_ll_eof2_n, rx_ll_src_rdy2_n, rx_ll_dst_rdy2_n; + + wire [7:0] rx_ll_data, rx_ll_data2; + + wire [35:0] rx_f36_data_int1; + wire rx_f36_src_rdy_int1, rx_f36_dst_rdy_int1; rxmac_to_ll8 rx_adapt (.clk(rx_clk), .reset(rx_reset), .clear(0), @@ -92,21 +96,21 @@ module simple_gemac_wrapper .ll_src_rdy_n(rx_ll_src_rdy2_n), .ll_dst_rdy_n(rx_ll_dst_rdy2_n), .f36_data(rx_f36_data_int1), .f36_src_rdy_o(rx_f36_src_rdy_int1), .f36_dst_rdy_i(rx_f36_dst_rdy_int1)); - fifo_2clock_cascade #(.WIDTH(36), .SIZE(6)) rx_2clk_fifo + fifo_2clock_cascade #(.WIDTH(36), .SIZE(RXFIFOSIZE)) rx_2clk_fifo (.wclk(rx_clk), .datain(rx_f36_data_int1), - .src_rdy_i(rx_f36_src_rdy_int1), .dst_rdy_o(rx_f36_dst_rdy_int1), .space(), + .src_rdy_i(rx_f36_src_rdy_int1), .dst_rdy_o(rx_f36_dst_rdy_int1), .space(rx_fifo_space), .rclk(sys_clk), .dataout(rx_f36_data), .src_rdy_o(rx_f36_src_rdy), .dst_rdy_i(rx_f36_dst_rdy), .occupied(), .arst(reset)); // TX FIFO Chain - wire tx_ll_sof, tx_ll_eof, tx_ll_src_rdy, tx_ll_dst_rdy; - wire tx_ll_sof2, tx_ll_eof2, tx_ll_src_rdy2, tx_ll_dst_rdy2; - wire tx_ll_sof2_n, tx_ll_eof2_n, tx_ll_src_rdy2_n, tx_ll_dst_rdy2_n; - wire [7:0] tx_ll_data, tx_ll_data2; - wire [35:0] tx_f36_data_int1; - wire tx_f36_src_rdy_int1, tx_f36_dst_rdy_int1; - - fifo_2clock #(.WIDTH(36), .SIZE(6)) tx_2clk_fifo + wire tx_ll_sof, tx_ll_eof, tx_ll_src_rdy, tx_ll_dst_rdy; + wire tx_ll_sof2, tx_ll_eof2, tx_ll_src_rdy2, tx_ll_dst_rdy2; + wire tx_ll_sof2_n, tx_ll_eof2_n, tx_ll_src_rdy2_n, tx_ll_dst_rdy2_n; + wire [7:0] tx_ll_data, tx_ll_data2; + wire [35:0] tx_f36_data_int1; + wire tx_f36_src_rdy_int1, tx_f36_dst_rdy_int1; + + fifo_2clock #(.WIDTH(36), .SIZE(TXFIFOSIZE)) tx_2clk_fifo (.wclk(sys_clk), .datain(tx_f36_data), .src_rdy_i(tx_f36_src_rdy), .dst_rdy_o(tx_f36_dst_rdy), .space(), .rclk(tx_clk), .dataout(tx_f36_data_int1), |