| Line 43... |
Line 43... |
reg [15:0] ptp_seqid;
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reg [15:0] ptp_seqid;
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always @(posedge rst or posedge clk) begin
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always @(posedge rst or posedge clk) begin
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if (rst) begin
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if (rst) begin
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int_cnt <= 10'd0;
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int_cnt <= 10'd0;
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bypass_ipv4_cnt <= 10'd0;
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bypass_ipv4_cnt <= 10'd0;
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bypass_ipv6_cnt <= 10'd0;
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bypass_udp_cnt <= 10'd0;
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bypass_udp_cnt <= 10'd0;
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end
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end
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else begin
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else begin
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if (int_valid_d1 && int_sop_d1)
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if (int_valid_d1 && int_sop_d1)
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int_cnt <= 10'd0;
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int_cnt <= 10'd0;
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else if (int_valid_d1)
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else if (int_valid_d1)
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int_cnt <= int_cnt + 10'd1 - bypass_vlan - (bypass_ipv4 || bypass_udp);
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int_cnt <= int_cnt + 10'd1 - bypass_vlan - (bypass_ipv4 || bypass_ipv6 || bypass_udp);
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if (int_valid_d1 && int_sop_d1)
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if (int_valid_d1 && int_sop_d1)
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bypass_ipv4_cnt <= 10'd0;
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bypass_ipv4_cnt <= 10'd0;
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else if (int_valid_d1 && bypass_ipv4)
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else if (int_valid_d1 && bypass_ipv4)
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bypass_ipv4_cnt <= bypass_ipv4_cnt + 10'd1;
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bypass_ipv4_cnt <= bypass_ipv4_cnt + 10'd1;
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if (int_valid_d1 && int_sop_d1)
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if (int_valid_d1 && int_sop_d1)
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bypass_ipv6_cnt <= 10'd0;
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else if (int_valid_d1 && bypass_ipv6)
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bypass_ipv6_cnt <= bypass_ipv6_cnt + 10'd1;
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if (int_valid_d1 && int_sop_d1)
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bypass_udp_cnt <= 10'd0;
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bypass_udp_cnt <= 10'd0;
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else if (int_valid_d1 && bypass_udp)
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else if (int_valid_d1 && bypass_udp)
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bypass_udp_cnt <= bypass_udp_cnt + 10'd1;
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bypass_udp_cnt <= bypass_udp_cnt + 10'd1;
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end
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end
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end
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end
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always @(posedge rst or posedge clk) begin
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always @(posedge rst or posedge clk) begin
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if (rst) begin
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if (rst) begin
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bypass_vlan <= 1'b0;
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bypass_vlan <= 1'b0;
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bypass_ipv4 <= 1'b0;
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bypass_ipv4 <= 1'b0;
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bypass_ipv6 <= 1'b0;
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found_udp <= 1'b0;
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found_udp <= 1'b0;
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bypass_udp <= 1'b0;
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bypass_udp <= 1'b0;
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ptp_l2 <= 1'b0;
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ptp_l2 <= 1'b0;
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ptp_l4 <= 1'b0;
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ptp_l4 <= 1'b0;
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ptp_event <= 1'b0;
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ptp_event <= 1'b0;
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end
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end
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else if (int_valid_d1 && int_sop_d1) begin
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else if (int_valid_d1 && int_sop_d1) begin
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bypass_vlan <= 1'b0;
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bypass_vlan <= 1'b0;
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bypass_ipv4 <= 1'b0;
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bypass_ipv4 <= 1'b0;
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bypass_ipv6 <= 1'b0;
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found_udp <= 1'b0;
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found_udp <= 1'b0;
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bypass_udp <= 1'b0;
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bypass_udp <= 1'b0;
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ptp_l2 <= 1'b0;
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ptp_l2 <= 1'b0;
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ptp_l4 <= 1'b0;
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ptp_l4 <= 1'b0;
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ptp_event <= 1'b0;
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ptp_event <= 1'b0;
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| Line 102... |
Line 110... |
else if (int_valid_d1 && bypass_ipv4_cnt==10'd4)
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else if (int_valid_d1 && bypass_ipv4_cnt==10'd4)
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bypass_ipv4 <= 1'b0;
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bypass_ipv4 <= 1'b0;
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// bypass ipv6
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// bypass ipv6
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// ether_type == ip, ip_version == 6
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// ether_type == ip, ip_version == 6
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// TO BE ADDED HERE
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if (int_valid_d1 && int_cnt==10'd3 && bypass_ipv4_cnt==10'd0 &&
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int_data_d1[31:16]==16'h86dd && int_data_d1[15:12]==4'h6)
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bypass_ipv6 <= 1'b1;
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else if (int_valid_d1 && bypass_ipv6_cnt==10'd9)
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bypass_ipv6 <= 1'b0;
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// check if it is UDP
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// check if it is UDP
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// ipv4_protocol == udp
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// ipv4_protocol == udp
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if (int_valid_d1 && bypass_ipv4_cnt==10'd1 && int_data_d1[ 7: 0]== 8'h11)
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if (int_valid_d1 && bypass_ipv4_cnt==10'd1 && int_data_d1[ 7: 0]== 8'h11)
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found_udp <= 1'b1;
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found_udp <= 1'b1;
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// ipv6_protocol == udp
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// ipv6_protocol == udp
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// TO BE ADDED HERE
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else if (int_valid_d1 && bypass_ipv6_cnt==10'd1 && int_data_d1[31:24]== 8'h11)
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found_udp <= 1'b1;
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// bypass udp
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// bypass udp
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// ipv4_udp
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// ipv4_udp
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if (int_valid_d1 && bypass_ipv4_cnt==10'd4 && bypass_udp_cnt==10'd0 && found_udp)
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if (int_valid_d1 && bypass_ipv4_cnt==10'd4 && bypass_udp_cnt==10'd0 && found_udp)
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bypass_udp <= 1'b1;
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bypass_udp <= 1'b1;
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else if (int_valid_d1 && bypass_udp_cnt==10'd2)
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else if (int_valid_d1 && bypass_udp_cnt==10'd2)
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bypass_udp <= 1'b0;
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bypass_udp <= 1'b0;
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// ipv6_udp
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// ipv6_udp
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// TO BE ADDED HERE
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else if (int_valid_d1 && bypass_ipv6_cnt==10'd9 && bypass_udp_cnt==10'd0 && found_udp)
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bypass_udp <= 1'b1;
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else if (int_valid_d1 && bypass_udp_cnt==10'd2)
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bypass_udp <= 1'b0;
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// check if it is L2 PTP
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// check if it is L2 PTP
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// ether_type == ptp
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// ether_type == ptp
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if (int_valid_d1 && int_cnt==10'd3 && int_data_d1[31:16]==16'h88F7)
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if (int_valid_d1 && int_cnt==10'd3 && int_data_d1[31:16]==16'h88F7)
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ptp_l2 <= 1'b1;
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ptp_l2 <= 1'b1;
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// check if it is L4 PTP
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// check if it is L4 PTP
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// ipv4_udp_dest_port == ptp_event
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// udp_dest_port == ptp_event
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if (int_valid_d1 && bypass_udp_cnt==10'd0 && bypass_udp && int_data_d1[31:16]==16'h013f)
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if (int_valid_d1 && bypass_udp_cnt==10'd0 && bypass_udp && int_data_d1[31:16]==16'h013f)
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ptp_l4 <= 1'b1;
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ptp_l4 <= 1'b1;
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// ipv6_udp_dest_port == ptp_event
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// TO BE ADDED HERE
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// check if it is PTP Event message
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// check if it is PTP Event message
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if (int_valid_d1 && int_cnt==10'd3 && int_data_d1[31:16]==16'h88F7 && (int_data_d1[11: 8]== 4'h0 || int_data_d1[11:8]==4'h2))
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if (int_valid_d1 && int_cnt==10'd3 && int_data_d1[31:16]==16'h88F7 && (int_data_d1[11: 8]== 4'h0 || int_data_d1[11:8]==4'h2))
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// ptp_message_id == sync || delay_req
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// ptp_message_id == sync || delay_req
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ptp_event <= 1'b1;
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ptp_event <= 1'b1;
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