| Line 25... |
Line 25... |
(
|
(
|
output gmii_txclk,
|
output gmii_txclk,
|
output reg gmii_txctrl,
|
output reg gmii_txctrl,
|
output reg [7:0] gmii_txdata
|
output reg [7:0] gmii_txdata
|
);
|
);
|
|
parameter giga_mode = 1;
|
|
|
reg gmii_txclk_offset;
|
reg gmii_txclk_offset;
|
initial begin
|
initial begin
|
gmii_txclk_offset = 1'b0;
|
gmii_txclk_offset = 1'b0;
|
forever #4 gmii_txclk_offset = !gmii_txclk_offset;
|
forever #4 gmii_txclk_offset = !gmii_txclk_offset;
|
| Line 41... |
Line 42... |
reg eof_tx;
|
reg eof_tx;
|
reg pcap_endian_tx;
|
reg pcap_endian_tx;
|
reg [31:0] pcap_4bytes_tx;
|
reg [31:0] pcap_4bytes_tx;
|
reg [31:0] packet_leng_tx;
|
reg [31:0] packet_leng_tx;
|
reg [ 7:0] packet_byte_tx;
|
reg [ 7:0] packet_byte_tx;
|
|
|
|
generate
|
|
if (giga_mode) begin
|
initial
|
initial
|
begin : feeder_tx
|
begin : feeder_tx
|
gmii_txctrl = 1'b0;
|
gmii_txctrl = 1'b0;
|
gmii_txdata = 4'd0;
|
gmii_txdata = 8'd0;
|
#100;
|
#100;
|
feeder_file_tx = $fopen("nic_drv_bfm/ptpdv2_tx.pcap","rb");
|
feeder_file_tx = $fopen("nic_drv_bfm/ptpdv2_tx.pcap","rb");
|
if (feeder_file_tx == 0)
|
if (feeder_file_tx == 0)
|
begin
|
begin
|
$display("Failed to open ptpdv2_tx.pcap!");
|
$display("Failed to open ptpdv2_tx.pcap!");
|
| Line 124... |
Line 128... |
$fclose(feeder_file_tx);
|
$fclose(feeder_file_tx);
|
gmii_txctrl = 1'b0;
|
gmii_txctrl = 1'b0;
|
gmii_txdata = 8'h00;
|
gmii_txdata = 8'h00;
|
end
|
end
|
end
|
end
|
|
end
|
|
else begin
|
|
initial
|
|
begin : feeder_tx
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'd0;
|
|
#100;
|
|
feeder_file_tx = $fopen("nic_drv_bfm/ptpdv2_tx.pcap","rb");
|
|
if (feeder_file_tx == 0)
|
|
begin
|
|
$display("Failed to open ptpdv2_tx.pcap!");
|
|
disable feeder_tx;
|
|
end
|
|
else
|
|
begin
|
|
// test pcap file endian
|
|
r_tx = $fread(pcap_4bytes_tx, feeder_file_tx);
|
|
pcap_endian_tx = (pcap_4bytes_tx == 32'ha1b2c3d4)? 1:0;
|
|
s_tx = $fseek(feeder_file_tx, -4, 1);
|
|
// skip pcap file header 24*8
|
|
s_tx = $fseek(feeder_file_tx, 24, 1);
|
|
// read packet content
|
|
eof_tx = 0;
|
|
num_tx = 0;
|
|
while (!eof_tx & !$feof(feeder_file_tx))
|
|
begin : fileread_loop
|
|
// skip frame header (8+4)*8
|
|
start_addr_tx = $ftell(feeder_file_tx);
|
|
s_tx = $fseek(feeder_file_tx, 8+4, 1);
|
|
// get frame length big endian 4*8
|
|
r_tx = $fread(packet_leng_tx, feeder_file_tx);
|
|
packet_leng_tx = pcap_endian_tx?
|
|
{packet_leng_tx[31:24], packet_leng_tx[23:16], packet_leng_tx[15: 8], packet_leng_tx[ 7: 0]}:
|
|
{packet_leng_tx[ 7: 0], packet_leng_tx[15: 8], packet_leng_tx[23:16], packet_leng_tx[31:24]};
|
|
// check whether end of file
|
|
if (r_tx == 0)
|
|
begin
|
|
eof_tx = 1;
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
disable fileread_loop;
|
|
end
|
|
// send ifg 96bit=12*8
|
|
repeat (12)
|
|
begin
|
|
@(posedge gmii_txclk_offset)
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
@(posedge gmii_txclk_offset)
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
end
|
|
// send frame preamble and sfd 55555555555555d5=8*8
|
|
repeat (7)
|
|
begin
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b1;
|
|
gmii_txdata = 4'h5;
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b1;
|
|
gmii_txdata = 4'h5;
|
|
end
|
|
@(posedge gmii_txclk_offset)
|
|
gmii_txctrl = 1'b1;
|
|
gmii_txdata = 4'h5;
|
|
@(posedge gmii_txclk_offset)
|
|
gmii_txctrl = 1'b1;
|
|
gmii_txdata = 4'hd;
|
|
// send frame content
|
|
for (index_tx=0; index_tx<packet_leng_tx; index_tx=index_tx+1)
|
|
begin
|
|
r_tx = $fread(packet_byte_tx, feeder_file_tx);
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b1;
|
|
gmii_txdata = packet_byte_tx[3:0];
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b1;
|
|
gmii_txdata = packet_byte_tx[7:4];
|
|
// check whether end of file
|
|
if (r_tx == 0)
|
|
begin
|
|
eof_tx = 1;
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
@(posedge gmii_txclk_offset);
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
disable fileread_loop;
|
|
end
|
|
end
|
|
end_addr_tx = $ftell(feeder_file_tx);
|
|
num_tx = num_tx + 1;
|
|
end
|
|
$fclose(feeder_file_tx);
|
|
gmii_txctrl = 1'b0;
|
|
gmii_txdata = 4'h0;
|
|
end
|
|
end
|
|
end
|
|
endgenerate
|
|
|
endmodule
|
endmodule
|
|
|
No newline at end of file
|
No newline at end of file
|
