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eth: Fix ordered set detection in 64-bit BASE-R RX

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
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Alex Forencich
2026-07-23 23:10:38 -07:00
parent 0f142c9e7d
commit a860d0631e
1 changed files with 35 additions and 30 deletions
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65
src/eth/rtl/taxi_axis_baser_rx_64.sv
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@@ -743,37 +743,42 @@ always_ff @(posedge clk) begin
end
// ordered sets
if (encoded_rx_data[7:4] == BLOCK_TYPE_CTRL[7:4]) begin
if (encoded_rx_hdr[0] == SYNC_CTRL[0]) begin
if (encoded_rx_data[7:4] == BLOCK_TYPE_CTRL[7:4]) begin
rx_os_match_reg <= '0;
rx_idle_match_reg <= {rx_idle_match_reg[0], 1'b1};
end
if (encoded_rx_data[7:4] == BLOCK_TYPE_OS_4[7:4] || encoded_rx_data[7:4] == BLOCK_TYPE_OS_04[7:4]) begin
rx_os_reg <= encoded_rx_data[63:40];
rx_os_sig_reg <= encoded_rx_data[39:36] == O_SIG_OS;
if ((encoded_rx_data[7:0] == BLOCK_TYPE_OS_4 || encoded_rx_data[7:0] == BLOCK_TYPE_OS_04) || (encoded_rx_data[39:36] == O_SEQ_OS || encoded_rx_data[39:36] == O_SIG_OS)) begin
rx_os_valid_reg <= 1'b1;
if (rx_os_reg == encoded_rx_data[63:40]) begin
rx_os_match_reg <= {rx_os_match_reg[0], 1'b1};
end else begin
rx_os_match_reg <= '0;
end
end else begin
rx_os_match_reg <= '0;
end
rx_idle_match_reg <= '0;
end else if (encoded_rx_data[7:4] == BLOCK_TYPE_OS_0[7:4] || encoded_rx_data[7:4] == BLOCK_TYPE_OS_START[7:4]) begin
rx_os_reg <= encoded_rx_data[31:8];
rx_os_sig_reg <= encoded_rx_data[35:32] == O_SIG_OS;
if ((encoded_rx_data[7:0] == BLOCK_TYPE_OS_0 || encoded_rx_data[7:0] == BLOCK_TYPE_OS_START) || (encoded_rx_data[35:32] == O_SEQ_OS || encoded_rx_data[35:32] == O_SIG_OS)) begin
rx_os_valid_reg <= 1'b1;
if (rx_os_reg == encoded_rx_data[31:8]) begin
rx_os_match_reg <= {rx_os_match_reg[0], 1'b1};
end else begin
rx_os_match_reg <= '0;
end
end else begin
rx_os_match_reg <= '0;
end
rx_idle_match_reg <= '0;
end
end else begin
rx_os_match_reg <= '0;
rx_idle_match_reg <= {rx_idle_match_reg[0], 1'b1};
end
if (encoded_rx_data[7:4] == BLOCK_TYPE_OS_4[7:4] || encoded_rx_data[7:4] == BLOCK_TYPE_OS_04[7:4]) begin
rx_os_reg <= encoded_rx_data[63:40];
rx_os_sig_reg <= encoded_rx_data[39:36] == O_SIG_OS;
if ((encoded_rx_data[7:0] == BLOCK_TYPE_OS_4 || encoded_rx_data[7:0] == BLOCK_TYPE_OS_04) || (encoded_rx_data[39:36] == O_SEQ_OS || encoded_rx_data[39:36] == O_SIG_OS)) begin
rx_os_valid_reg <= 1'b1;
if (rx_os_reg == encoded_rx_data[63:40]) begin
rx_os_match_reg <= {rx_os_match_reg[0], 1'b1};
end else begin
rx_os_match_reg <= '0;
end
end else begin
rx_os_match_reg <= '0;
end
rx_idle_match_reg <= '0;
end else if (encoded_rx_data[7:4] == BLOCK_TYPE_OS_0[7:4] || encoded_rx_data[7:4] == BLOCK_TYPE_OS_START[7:4]) begin
rx_os_reg <= encoded_rx_data[31:8];
rx_os_sig_reg <= encoded_rx_data[35:32] == O_SIG_OS;
if ((encoded_rx_data[7:0] == BLOCK_TYPE_OS_0 || encoded_rx_data[7:0] == BLOCK_TYPE_OS_START) || (encoded_rx_data[35:32] == O_SEQ_OS || encoded_rx_data[35:32] == O_SIG_OS)) begin
rx_os_valid_reg <= 1'b1;
if (rx_os_reg == encoded_rx_data[31:8]) begin
rx_os_match_reg <= {rx_os_match_reg[0], 1'b1};
end else begin
rx_os_match_reg <= '0;
end
end else begin
rx_os_match_reg <= '0;
end
rx_idle_match_reg <= '0;
end