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Diffstat (limited to 'fpga/usrp3/lib/rfnoc/packet_resizer.v')
-rw-r--r-- | fpga/usrp3/lib/rfnoc/packet_resizer.v | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/fpga/usrp3/lib/rfnoc/packet_resizer.v b/fpga/usrp3/lib/rfnoc/packet_resizer.v deleted file mode 100644 index 5d2675df5..000000000 --- a/fpga/usrp3/lib/rfnoc/packet_resizer.v +++ /dev/null @@ -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 |