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-rw-r--r--usrp2/fifo/packet_router.v206
1 files changed, 123 insertions, 83 deletions
diff --git a/usrp2/fifo/packet_router.v b/usrp2/fifo/packet_router.v
index 6cf022b11..9d18c3c42 100644
--- a/usrp2/fifo/packet_router.v
+++ b/usrp2/fifo/packet_router.v
@@ -88,9 +88,17 @@ module packet_router
.out(my_ip_addr),.changed()
);
+ //setting register to program the UDP ctrl ports
+ wire [15:0] ctrl_udp_port, other_udp_port;
+ setting_reg #(.my_addr(CTRL_BASE+2)) sreg_ctrl_ports(
+ .clk(stream_clk),.rst(stream_rst),
+ .strobe(set_stb),.addr(set_addr),.in(set_data),
+ .out({other_udp_port, ctrl_udp_port}),.changed()
+ );
+
//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_udp_ports(
+ setting_reg #(.my_addr(CTRL_BASE+3)) 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()
@@ -99,7 +107,7 @@ module packet_router
//setting register for CPU output handshake
wire [31:0] _sreg_cpu_out_ctrl;
wire cpu_out_hs_ctrl = _sreg_cpu_out_ctrl[0];
- setting_reg #(.my_addr(CTRL_BASE+3)) sreg_cpu_out_ctrl(
+ setting_reg #(.my_addr(CTRL_BASE+4)) sreg_cpu_out_ctrl(
.clk(stream_clk),.rst(stream_rst),
.strobe(set_stb),.addr(set_addr),.in(set_data),
.out(_sreg_cpu_out_ctrl),.changed()
@@ -109,7 +117,7 @@ module packet_router
wire [31:0] _sreg_cpu_inp_ctrl;
wire cpu_inp_hs_ctrl = _sreg_cpu_inp_ctrl[0];
wire [BUF_SIZE-1:0] cpu_inp_line_count = _sreg_cpu_inp_ctrl[BUF_SIZE-1+16:0+16];
- setting_reg #(.my_addr(CTRL_BASE+4)) sreg_cpu_inp_ctrl(
+ setting_reg #(.my_addr(CTRL_BASE+5)) sreg_cpu_inp_ctrl(
.clk(stream_clk),.rst(stream_rst),
.strobe(set_stb),.addr(set_addr),.in(set_data),
.out(_sreg_cpu_inp_ctrl),.changed()
@@ -135,9 +143,9 @@ module packet_router
////////////////////////////////////////////////////////////////////
//streaming signals from the crossbar to the combiner
- wire [35:0] crs_inp_data;
- wire crs_inp_valid;
- wire crs_inp_ready;
+ wire [35:0] ext_inp_data;
+ wire ext_inp_valid;
+ wire ext_inp_ready;
//dummy signals for valve/xbar below
wire [35:0] _eth_inp_data;
@@ -155,7 +163,7 @@ module packet_router
.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),
- .data1_o(crs_inp_data), .src1_rdy_o(crs_inp_valid), .dst1_rdy_i(crs_inp_ready)
+ .data1_o(ext_inp_data), .src1_rdy_o(ext_inp_valid), .dst1_rdy_i(ext_inp_ready)
);
////////////////////////////////////////////////////////////////////
@@ -169,9 +177,9 @@ module packet_router
////////////////////////////////////////////////////////////////////
//streaming signals from the inspector to the crossbar
- wire [35:0] crs_out_data;
- wire crs_out_valid;
- wire crs_out_ready;
+ wire [35:0] ext_out_data;
+ wire ext_out_valid;
+ wire ext_out_ready;
//dummy signals for valve/xbar below
wire [35:0] _eth_out_data;
@@ -181,7 +189,7 @@ module packet_router
crossbar36 com_out_xbar (
.clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .cross(~master_mode_flag),
.data0_i(com_out_data), .src0_rdy_i(com_out_valid), .dst0_rdy_o(com_out_ready),
- .data1_i(crs_out_data), .src1_rdy_i(crs_out_valid), .dst1_rdy_o(crs_out_ready),
+ .data1_i(ext_out_data), .src1_rdy_i(ext_out_valid), .dst1_rdy_o(ext_out_ready),
.data0_o(_eth_out_data), .src0_rdy_o(_eth_out_valid), .dst0_rdy_i(_eth_out_ready),
.data1_o(ser_out_data), .src1_rdy_o(ser_out_valid), .dst1_rdy_i(ser_out_ready)
);
@@ -196,8 +204,7 @@ module packet_router
// Communication output source combiner (feeds UDP proto machine)
// - DSP framer
// - CPU input
- // - Error input
- // - Crossbar input
+ // - ERR input
////////////////////////////////////////////////////////////////////
//streaming signals from the dsp framer to the combiner
@@ -369,37 +376,42 @@ module packet_router
////////////////////////////////////////////////////////////////////
// Communication input inspector
- // - inspect com input and send it to CPU, DSP, or COM
+ // - inspect com input and send it to DSP, EXT, CPU, or BOTH
////////////////////////////////////////////////////////////////////
localparam COM_INSP_STATE_READ_COM_PRE = 0;
localparam COM_INSP_STATE_READ_COM = 1;
localparam COM_INSP_STATE_WRITE_REGS = 2;
localparam COM_INSP_STATE_WRITE_LIVE = 3;
- localparam COM_INSP_DEST_FP_THIS = 0;
- localparam COM_INSP_DEST_FP_OTHER = 1;
- localparam COM_INSP_DEST_SP_BOTH = 2;
+ localparam COM_INSP_DEST_DSP = 0;
+ localparam COM_INSP_DEST_EXT = 1;
+ localparam COM_INSP_DEST_CPU = 2;
+ localparam COM_INSP_DEST_BOF = 3;
localparam COM_INSP_MAX_NUM_DREGS = 13; //padded_eth + ip + udp + seq + vrt_hdr
localparam COM_INSP_DREGS_DSP_OFFSET = 11; //offset to start dsp at
//output inspector interfaces
- wire [35:0] com_insp_out_fp_this_data;
- wire com_insp_out_fp_this_valid;
- wire com_insp_out_fp_this_ready;
+ wire [35:0] com_insp_out_dsp_data;
+ wire com_insp_out_dsp_valid;
+ wire com_insp_out_dsp_ready;
+
+ wire [35:0] com_insp_out_ext_data;
+ wire com_insp_out_ext_valid;
+ wire com_insp_out_ext_ready;
- wire [35:0] com_insp_out_fp_other_data;
- wire com_insp_out_fp_other_valid;
- wire com_insp_out_fp_other_ready;
+ wire [35:0] com_insp_out_cpu_data;
+ wire com_insp_out_cpu_valid;
+ wire com_insp_out_cpu_ready;
- wire [35:0] com_insp_out_sp_both_data;
- wire com_insp_out_sp_both_valid;
- wire com_insp_out_sp_both_ready;
+ wire [35:0] com_insp_out_bof_data;
+ wire com_insp_out_bof_valid;
+ wire com_insp_out_bof_ready;
//connect this fast-path signals directly to the DSP out
- assign dsp_out_data = com_insp_out_fp_this_data;
- assign dsp_out_valid = com_insp_out_fp_this_valid;
- assign com_insp_out_fp_this_ready = dsp_out_ready;
+ assign dsp_out_data = com_insp_out_dsp_data;
+ assign dsp_out_valid = com_insp_out_dsp_valid;
+ assign com_insp_out_dsp_ready = dsp_out_ready;
reg [1:0] com_insp_state;
reg [1:0] com_insp_dest;
@@ -409,22 +421,24 @@ module packet_router
reg [35:0] com_insp_dregs [COM_INSP_MAX_NUM_DREGS-1:0];
//Inspection logic:
- wire com_inp_dregs_is_data = 1'b1
+ wire com_insp_is_ip_udp = 1'b1
&& (com_insp_dregs[3][15:0] == 16'h800) //ethertype IPv4
&& (com_insp_dregs[6][23:16] == 8'h11) //protocol UDP
- && (com_insp_dregs[9][15:0] == dsp0_udp_port) //UDP data port
- && (com_inp_data[15:0] != 16'h0) //VRT packet size
;
-
- wire com_inp_dregs_my_ip_match = (my_ip_addr == com_insp_dregs[8][31:0])? 1'b1 : 1'b0;
- wire com_inp_dregs_is_data_here = com_inp_dregs_is_data & com_inp_dregs_my_ip_match;
- wire com_inp_dregs_is_data_there = com_inp_dregs_is_data & ~com_inp_dregs_my_ip_match;
+ wire com_insp_is_bcast = 1'b1
+ && (com_insp_dregs[0][15:0] == 16'hffff) //ethernet dst mac
+ && (com_insp_dregs[1][31:0] == 32'hffffffff) //ethernet dst mac
+ ;
+ wire com_insp_is_ip_match = (my_ip_addr == com_insp_dregs[8][31:0])? 1'b1 : 1'b0;
+ wire com_insp_is_dsp0_port = (com_insp_dregs[9][15:0] == dsp0_udp_port)? 1'b1 : 1'b0;
+ wire com_insp_is_ctrl_port = (com_insp_dregs[9][15:0] == ctrl_udp_port)? 1'b1 : 1'b0;
+ wire com_insp_is_vrt_pkt = (com_inp_data[15:0] != 16'h0)? 1'b1 : 1'b0;
//Inspector output flags special case:
//Inject SOF into flags at first DSP line.
wire [3:0] com_insp_out_flags = (
(com_insp_dreg_count == COM_INSP_DREGS_DSP_OFFSET) &&
- (com_insp_dest == COM_INSP_DEST_FP_THIS)
+ (com_insp_dest == COM_INSP_DEST_DSP)
)? 4'b0001 : com_insp_dregs[com_insp_dreg_count][35:32];
//The communication inspector ouput data and valid signals:
@@ -440,21 +454,24 @@ module packet_router
//The communication inspector ouput ready signal:
//Mux between the various destination ready signals.
wire com_insp_out_ready =
- (com_insp_dest == COM_INSP_DEST_FP_THIS) ? com_insp_out_fp_this_ready : (
- (com_insp_dest == COM_INSP_DEST_FP_OTHER)? com_insp_out_fp_other_ready : (
- (com_insp_dest == COM_INSP_DEST_SP_BOTH) ? com_insp_out_sp_both_ready : (
- 1'b0)));
+ (com_insp_dest == COM_INSP_DEST_DSP)? com_insp_out_dsp_ready : (
+ (com_insp_dest == COM_INSP_DEST_EXT)? com_insp_out_ext_ready : (
+ (com_insp_dest == COM_INSP_DEST_CPU)? com_insp_out_cpu_ready : (
+ (com_insp_dest == COM_INSP_DEST_BOF)? com_insp_out_bof_ready : (
+ 1'b0))));
//Always connected output data lines.
- assign com_insp_out_fp_this_data = com_insp_out_data;
- assign com_insp_out_fp_other_data = com_insp_out_data;
- assign com_insp_out_sp_both_data = com_insp_out_data;
+ assign com_insp_out_dsp_data = com_insp_out_data;
+ assign com_insp_out_ext_data = com_insp_out_data;
+ assign com_insp_out_cpu_data = com_insp_out_data;
+ assign com_insp_out_bof_data = com_insp_out_data;
//Destination output valid signals:
//Comes from inspector valid when destination is selected, and otherwise low.
- assign com_insp_out_fp_this_valid = (com_insp_dest == COM_INSP_DEST_FP_THIS) ? com_insp_out_valid : 1'b0;
- assign com_insp_out_fp_other_valid = (com_insp_dest == COM_INSP_DEST_FP_OTHER)? com_insp_out_valid : 1'b0;
- assign com_insp_out_sp_both_valid = (com_insp_dest == COM_INSP_DEST_SP_BOTH) ? com_insp_out_valid : 1'b0;
+ assign com_insp_out_dsp_valid = (com_insp_dest == COM_INSP_DEST_DSP)? com_insp_out_valid : 1'b0;
+ assign com_insp_out_ext_valid = (com_insp_dest == COM_INSP_DEST_EXT)? com_insp_out_valid : 1'b0;
+ assign com_insp_out_cpu_valid = (com_insp_dest == COM_INSP_DEST_CPU)? com_insp_out_valid : 1'b0;
+ assign com_insp_out_bof_valid = (com_insp_dest == COM_INSP_DEST_BOF)? com_insp_out_valid : 1'b0;
//The communication inspector ouput ready signal:
//Always ready when storing to data registers,
@@ -484,20 +501,36 @@ module packet_router
COM_INSP_STATE_READ_COM: begin
if (com_inp_ready & com_inp_valid) begin
com_insp_dregs[com_insp_dreg_count] <= com_inp_data;
- if (com_inp_dregs_is_data_here & com_insp_dreg_counter_done) begin
- com_insp_dest <= COM_INSP_DEST_FP_THIS;
- com_insp_state <= COM_INSP_STATE_WRITE_REGS;
- com_insp_dreg_count <= COM_INSP_DREGS_DSP_OFFSET;
- end
- else if (com_inp_dregs_is_data_there & com_insp_dreg_counter_done) begin
- com_insp_dest <= COM_INSP_DEST_FP_OTHER;
+ if (com_insp_dreg_counter_done | com_inp_data[33]) begin
com_insp_state <= COM_INSP_STATE_WRITE_REGS;
- com_insp_dreg_count <= 0;
- end
- else if (com_inp_data[33] | com_insp_dreg_counter_done) begin
- com_insp_dest <= COM_INSP_DEST_SP_BOTH;
- com_insp_state <= COM_INSP_STATE_WRITE_REGS;
- com_insp_dreg_count <= 0;
+
+ //---------- begin inspection decision -----------//
+ if (com_insp_is_bcast | com_inp_data[33]) begin
+ com_insp_dest <= COM_INSP_DEST_BOF;
+ com_insp_dreg_count <= 0;
+ end
+
+ else if (~com_insp_is_ip_udp) begin
+ com_insp_dest <= COM_INSP_DEST_CPU;
+ com_insp_dreg_count <= 0;
+ end
+
+ else if (~com_insp_is_ip_match) begin
+ com_insp_dest <= COM_INSP_DEST_EXT;
+ com_insp_dreg_count <= 0;
+ end
+
+ else if (com_insp_is_dsp0_port & com_insp_is_vrt_pkt) begin
+ com_insp_dest <= COM_INSP_DEST_DSP;
+ com_insp_dreg_count <= COM_INSP_DREGS_DSP_OFFSET;
+ end
+
+ else begin
+ com_insp_dest <= COM_INSP_DEST_CPU;
+ com_insp_dreg_count <= 0;
+ end
+ //---------- end inspection decision -------------//
+
end
else begin
com_insp_dreg_count <= com_insp_dreg_count_next;
@@ -531,28 +564,35 @@ module packet_router
end
////////////////////////////////////////////////////////////////////
- // Serdes crossbar output source
- // - combine slow-path data with fast-path other data
- // - slow-path data is duplicated to this and CPU out
+ // Splitter and output muxes for the bof packets
+ // - split the bof packets into two streams
+ // - mux split packets into cpu out and ext out
////////////////////////////////////////////////////////////////////
- //dummy signals to join the the splitter and mux below
- wire [35:0] _sp_split_to_mux_data;
- wire _sp_split_to_mux_valid;
- wire _sp_split_to_mux_ready;
+ //dummy signals to join the the splitter and muxes below
+ wire [35:0] _split_to_ext_data, _split_to_cpu_data;
+ wire _split_to_ext_valid, _split_to_cpu_valid;
+ wire _split_to_ext_ready, _split_to_cpu_ready;
- splitter36 crs_out_src0(
+ splitter36 bof_out_splitter(
.clk(stream_clk), .rst(stream_rst), .clr(stream_clr),
- .inp_data(com_insp_out_sp_both_data), .inp_valid(com_insp_out_sp_both_valid), .inp_ready(com_insp_out_sp_both_ready),
- .out0_data(_sp_split_to_mux_data), .out0_valid(_sp_split_to_mux_valid), .out0_ready(_sp_split_to_mux_ready),
- .out1_data(cpu_out_data), .out1_valid(cpu_out_valid), .out1_ready(cpu_out_ready)
+ .inp_data(com_insp_out_bof_data), .inp_valid(com_insp_out_bof_valid), .inp_ready(com_insp_out_bof_ready),
+ .out0_data(_split_to_ext_data), .out0_valid(_split_to_ext_valid), .out0_ready(_split_to_ext_ready),
+ .out1_data(_split_to_cpu_data), .out1_valid(_split_to_cpu_valid), .out1_ready(_split_to_cpu_ready)
+ );
+
+ fifo36_mux ext_out_mux(
+ .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+ .data0_i(com_insp_out_ext_data), .src0_rdy_i(com_insp_out_ext_valid), .dst0_rdy_o(com_insp_out_ext_ready),
+ .data1_i(_split_to_ext_data), .src1_rdy_i(_split_to_ext_valid), .dst1_rdy_o(_split_to_ext_ready),
+ .data_o(ext_out_data), .src_rdy_o(ext_out_valid), .dst_rdy_i(ext_out_ready)
);
- fifo36_mux crs_out_src1(
+ fifo36_mux cpu_out_mux(
.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
- .data0_i(com_insp_out_fp_other_data), .src0_rdy_i(com_insp_out_fp_other_valid), .dst0_rdy_o(com_insp_out_fp_other_ready),
- .data1_i(_sp_split_to_mux_data), .src1_rdy_i(_sp_split_to_mux_valid), .dst1_rdy_o(_sp_split_to_mux_ready),
- .data_o(crs_out_data), .src_rdy_o(crs_out_valid), .dst_rdy_i(crs_out_ready)
+ .data0_i(com_insp_out_cpu_data), .src0_rdy_i(com_insp_out_cpu_valid), .dst0_rdy_o(com_insp_out_cpu_ready),
+ .data1_i(_split_to_cpu_data), .src1_rdy_i(_split_to_cpu_valid), .dst1_rdy_o(_split_to_cpu_ready),
+ .data_o(cpu_out_data), .src_rdy_o(cpu_out_valid), .dst_rdy_i(cpu_out_ready)
);
////////////////////////////////////////////////////////////////////
@@ -607,7 +647,7 @@ module packet_router
fifo36_mux com_out_mux(
.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
- .data0_i(crs_inp_data), .src0_rdy_i(crs_inp_valid), .dst0_rdy_o(crs_inp_ready),
+ .data0_i(ext_inp_data), .src0_rdy_i(ext_inp_valid), .dst0_rdy_o(ext_inp_ready),
.data1_i(_com_out_data), .src1_rdy_i(_com_out_valid), .dst1_rdy_o(_com_out_ready),
.data_o(com_out_data), .src_rdy_o(com_out_valid), .dst_rdy_i(com_out_ready)
);
@@ -630,16 +670,16 @@ module packet_router
cpu_out_ready, cpu_out_valid,
//inspector interfaces (8)
- com_inp_ready, com_inp_valid,
- com_insp_out_fp_this_ready, com_insp_out_fp_this_valid,
- com_insp_out_fp_other_ready, com_insp_out_fp_other_valid,
- com_insp_out_sp_both_ready, com_insp_out_sp_both_valid,
+ com_insp_out_dsp_ready, com_insp_out_dsp_valid,
+ com_insp_out_ext_ready, com_insp_out_ext_valid,
+ com_insp_out_cpu_ready, com_insp_out_cpu_valid,
+ com_insp_out_bof_ready, com_insp_out_bof_valid,
//other interfaces (8)
- crs_inp_ready, crs_inp_valid,
+ ext_inp_ready, ext_inp_valid,
com_out_ready, com_out_valid,
- crs_out_ready, crs_out_valid,
- _sp_split_to_mux_ready, _sp_split_to_mux_valid
+ ext_out_ready, ext_out_valid,
+ com_inp_ready, com_inp_valid
};
endmodule // packet_router
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 01:20:31 +0000