diff options
Diffstat (limited to 'fpga/usrp2/fifo')
| -rw-r--r-- | fpga/usrp2/fifo/dsp_framer36.v | 5 | ||||
| -rw-r--r-- | fpga/usrp2/fifo/packet_router.v | 48 |
2 files changed, 36 insertions, 17 deletions
diff --git a/fpga/usrp2/fifo/dsp_framer36.v b/fpga/usrp2/fifo/dsp_framer36.v index 34a05d91e..f7d7fb68e 100644 --- a/fpga/usrp2/fifo/dsp_framer36.v +++ b/fpga/usrp2/fifo/dsp_framer36.v @@ -2,7 +2,7 @@ // Frame DSP packets with a header line to be handled by the protocol machine module dsp_framer36 - #(parameter BUF_SIZE = 9) + #(parameter BUF_SIZE = 9, parameter PORT_SEL = 0) ( input clk, input rst, input clr, input [35:0] inp_data, input inp_valid, output inp_ready, @@ -29,8 +29,9 @@ module dsp_framer36 //The header is generated here from the count. wire [31:0] dsp_frm_data_bram; wire [15:0] dsp_frm_bytes = {dsp_frm_count, 2'b00}; + wire [1:0] port_sel_bits = PORT_SEL; assign out_data = - (dsp_frm_state == DSP_FRM_STATE_WRITE_HDR)? {4'b0001, 16'b1, dsp_frm_bytes} : ( + (dsp_frm_state == DSP_FRM_STATE_WRITE_HDR)? {4'b0001, 13'b0, port_sel_bits, 1'b1, dsp_frm_bytes} : ( (dsp_frm_addr == dsp_frm_count) ? {4'b0010, dsp_frm_data_bram} : ( {4'b0000, dsp_frm_data_bram})); assign out_valid = ( diff --git a/fpga/usrp2/fifo/packet_router.v b/fpga/usrp2/fifo/packet_router.v index 161b59016..bad8fb7fc 100644 --- a/fpga/usrp2/fifo/packet_router.v +++ b/fpga/usrp2/fifo/packet_router.v @@ -33,7 +33,8 @@ module packet_router // Input Interfaces (in to router) input [35:0] ser_inp_data, input ser_inp_valid, output ser_inp_ready, - input [35:0] dsp_inp_data, input dsp_inp_valid, output dsp_inp_ready, + input [35:0] dsp0_inp_data, input dsp0_inp_valid, output dsp0_inp_ready, + input [35:0] dsp1_inp_data, input dsp1_inp_valid, output dsp1_inp_ready, input [35:0] eth_inp_data, input eth_inp_valid, output eth_inp_ready, input [35:0] err_inp_data, input err_inp_valid, output err_inp_ready, @@ -83,11 +84,11 @@ module packet_router ); //setting register to program the UDP data ports - wire [15:0] dsp0_udp_port, dsp1_udp_port; - setting_reg #(.my_addr(CTRL_BASE+2)) sreg_data_ports( + wire [15:0] dsp_udp_port; + setting_reg #(.my_addr(CTRL_BASE+2), .width(16)) sreg_data_ports( .clk(stream_clk),.rst(stream_rst), .strobe(set_stb),.addr(set_addr),.in(set_data), - .out({dsp1_udp_port, dsp0_udp_port}),.changed() + .out(dsp_udp_port),.changed() ); //assign status output signals @@ -116,6 +117,11 @@ module packet_router wire _eth_inp_valid; wire _eth_inp_ready; + // dummy signals to connect fifo_short + wire [35:0] _com_inp_data; + wire _com_inp_valid; + wire _com_inp_ready; + valve36 eth_inp_valve ( .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .shutoff(~master_mode_flag), .data_i(eth_inp_data), .src_rdy_i(eth_inp_valid), .dst_rdy_o(eth_inp_ready), @@ -126,10 +132,17 @@ module packet_router .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .cross(~master_mode_flag), .data0_i(_eth_inp_data), .src0_rdy_i(_eth_inp_valid), .dst0_rdy_o(_eth_inp_ready), .data1_i(ser_inp_data), .src1_rdy_i(ser_inp_valid), .dst1_rdy_o(ser_inp_ready), - .data0_o(com_inp_data), .src0_rdy_o(com_inp_valid), .dst0_rdy_i(com_inp_ready), + .data0_o(_com_inp_data), .src0_rdy_o(_com_inp_valid), .dst0_rdy_i(_com_inp_ready), .data1_o(ext_inp_data), .src1_rdy_o(ext_inp_valid), .dst1_rdy_i(ext_inp_ready) ); + // short fifo in the packet inspection path to help timing + fifo_short #(.WIDTH(36)) com_inp_fifo + (.clk(stream_clk), .reset(stream_rst), .clear(stream_clr), + .datain(_com_inp_data), .src_rdy_i(_com_inp_valid), .dst_rdy_o(_com_inp_ready), + .dataout(com_inp_data), .src_rdy_o(com_inp_valid), .dst_rdy_i(com_inp_ready), + .space(), .occupied() ); + //////////////////////////////////////////////////////////////////// // Communication output sink crossbar // When in master mode: @@ -172,9 +185,9 @@ module packet_router //////////////////////////////////////////////////////////////////// //streaming signals from the dsp framer to the combiner - wire [35:0] dsp_frm_data; - wire dsp_frm_valid; - wire dsp_frm_ready; + wire [35:0] dsp0_frm_data, dsp1_frm_data; + wire dsp0_frm_valid, dsp1_frm_valid; + wire dsp0_frm_ready, dsp1_frm_ready; //dummy signals to join the the muxes below wire [35:0] _combiner0_data, _combiner1_data; @@ -183,14 +196,14 @@ module packet_router fifo36_mux _com_output_combiner0( .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), - .data0_i(dsp_frm_data), .src0_rdy_i(dsp_frm_valid), .dst0_rdy_o(dsp_frm_ready), + .data0_i(dsp0_frm_data), .src0_rdy_i(dsp0_frm_valid), .dst0_rdy_o(dsp0_frm_ready), .data1_i(err_inp_data), .src1_rdy_i(err_inp_valid), .dst1_rdy_o(err_inp_ready), .data_o(_combiner0_data), .src_rdy_o(_combiner0_valid), .dst_rdy_i(_combiner0_ready) ); fifo36_mux _com_output_combiner1( .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), - .data0_i(32'b0), .src0_rdy_i(1'b0), .dst0_rdy_o(), //mux out from dsp1 can go here + .data0_i(dsp1_frm_data), .src0_rdy_i(dsp1_frm_valid), .dst0_rdy_o(dsp1_frm_ready), .data1_i(cpu_inp_data), .src1_rdy_i(cpu_inp_valid), .dst1_rdy_o(cpu_inp_ready), .data_o(_combiner1_data), .src_rdy_o(_combiner1_valid), .dst_rdy_i(_combiner1_ready) ); @@ -364,7 +377,7 @@ module packet_router end //UDP data port and VRT: - else if ((com_insp_dregs_udp_dst_port == dsp0_udp_port) && (com_insp_dregs_vrt_size != 16'h0)) begin + else if ((com_insp_dregs_udp_dst_port == dsp_udp_port) && (com_insp_dregs_vrt_size != 16'h0)) begin com_insp_dest <= COM_INSP_DEST_DSP; com_insp_dreg_count <= COM_INSP_DREGS_DSP_OFFSET; end @@ -448,11 +461,16 @@ module packet_router //////////////////////////////////////////////////////////////////// // DSP input framer //////////////////////////////////////////////////////////////////// + dsp_framer36 #(.BUF_SIZE(BUF_SIZE), .PORT_SEL(0)) dsp0_framer36( + .clk(stream_clk), .rst(stream_rst), .clr(stream_clr), + .inp_data(dsp0_inp_data), .inp_valid(dsp0_inp_valid), .inp_ready(dsp0_inp_ready), + .out_data(dsp0_frm_data), .out_valid(dsp0_frm_valid), .out_ready(dsp0_frm_ready) + ); - dsp_framer36 #(.BUF_SIZE(BUF_SIZE)) dsp0_framer36( + dsp_framer36 #(.BUF_SIZE(BUF_SIZE), .PORT_SEL(2)) dsp1_framer36( .clk(stream_clk), .rst(stream_rst), .clr(stream_clr), - .inp_data(dsp_inp_data), .inp_valid(dsp_inp_valid), .inp_ready(dsp_inp_ready), - .out_data(dsp_frm_data), .out_valid(dsp_frm_valid), .out_ready(dsp_frm_ready) + .inp_data(dsp1_inp_data), .inp_valid(dsp1_inp_valid), .inp_ready(dsp1_inp_ready), + .out_data(dsp1_frm_data), .out_valid(dsp1_frm_valid), .out_ready(dsp1_frm_ready) ); //////////////////////////////////////////////////////////////////// @@ -508,7 +526,7 @@ module packet_router assign debug = { //inputs to the router (8) - dsp_inp_ready, dsp_inp_valid, + dsp0_inp_ready, dsp0_inp_valid, ser_inp_ready, ser_inp_valid, eth_inp_ready, eth_inp_valid, cpu_inp_ready, cpu_inp_valid, |