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-rw-r--r--fpga/usrp3/lib/rfnoc/packet_resizer.v70
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diff --git a/fpga/usrp3/lib/rfnoc/packet_resizer.v b/fpga/usrp3/lib/rfnoc/packet_resizer.v
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--- a/fpga/usrp3/lib/rfnoc/packet_resizer.v
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@@ -1,70 +0,0 @@
-//
-// Copyright 2014 Ettus Research LLC
-// Copyright 2018 Ettus Research, a National Instruments Company
-//
-// SPDX-License-Identifier: LGPL-3.0-or-later
-//
-// Not necessarily that useful in general, but a good test block
-
-module packet_resizer
- #(parameter SR_PKT_SIZE=1)
- (input clk, input reset,
- input [15:0] next_dst_sid,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
- input [31:0] i_tdata, input [127:0] i_tuser, input i_tlast, input i_tvalid, output i_tready,
- output [31:0] o_tdata, output [127:0] o_tuser, output o_tlast, output o_tvalid, input o_tready);
-
- wire [15:0] pkt_size;
- reg [15:0] count;
- reg first_packet_in_burst = 1'b1;
-
- setting_reg #(.my_addr(SR_PKT_SIZE), .width(16)) reg_pkt_size
- (.clk(clk), .rst(reset), .strobe(set_stb), .addr(set_addr), .in(set_data),
- .out(pkt_size));
-
- // Parse i_tuser
- wire [1:0] TYPE_in = i_tuser[127:126];
- wire TSI_in = i_tuser[125];
- wire EOB_in = i_tuser[124];
- wire [11:0] SEQ_in = i_tuser[123:112];
- wire [15:0] LEN_in = i_tuser[111:96];
- wire [15:0] SRC_in = i_tuser[95:80];
- wire [15:0] DST_in = i_tuser[79:64];
- wire [63:0] TIME_in = i_tuser[63:0];
-
- // Generate o_tuser
- wire [1:0] TYPE_out = TYPE_in;
- wire TSI_out = TSI_in & first_packet_in_burst;
- wire EOB_out = EOB_in & i_tlast;
- wire [11:0] SEQ_out = SEQ_in; // Doesn't actually matter, it gets overwritten by chdr_framer
- wire [15:0] LEN_out = LEN_in; // Only the bottom 2 bits actually matter, rest gets overwritten
- wire [15:0] SRC_out = DST_in;
- wire [15:0] DST_out = next_dst_sid;
- wire [63:0] TIME_out = TIME_in;
-
- // Pass nearly everything through unchanged
- assign o_tdata = i_tdata;
- assign o_tlast = (count == pkt_size) | EOB_out;
- assign o_tuser = { TYPE_out, TSI_out, EOB_out, SEQ_out, LEN_out, SRC_out, DST_out, TIME_out };
-
- assign o_tvalid = i_tvalid;
- assign i_tready = o_tready;
-
- always @(posedge clk)
- if(reset)
- count <= 16'd4;
- else
- if(o_tvalid & o_tready)
- if(o_tlast)
- count <= 16'd4;
- else
- count <= count + 16'd4;
-
- always @(posedge clk)
- if(reset)
- first_packet_in_burst <= 1'b1;
- else
- if(o_tvalid & o_tready & o_tlast)
- first_packet_in_burst <= EOB_out;
-
-endmodule // packet_resizer