Reinier van der Walle
--- a/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
+++ b/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
  END GENERATE;
  
  gen_dp_fifo_dc : IF g_use_dual_clock=TRUE GENERATE  
-    u_common_spulse : ENTITY common_lib.common_spulse
-    PORT MAP (
-      in_rst  => wr_rst,
-      in_clk  => wr_clk,
-      in_pulse  => snk_in.eop,
-      out_rst => rd_rst,
-      out_clk => rd_clk,
-      out_pulse => crossed_domain_snk_in_eop
-    );
+    -- Transfer eop across clock domain
--- a/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
+++ b/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
        state     <= s_idle;
        i_src_out <= c_dp_sosi_rst;
        received_eop <= FALSE;
+        expecting_eop <= FALSE;
      ELSIF rising_edge(rd_clk) THEN
        xon_reg   <= nxt_xon_reg;
        state     <= nxt_state;
        i_src_out <= nxt_src_out;
        IF crossed_domain_snk_in_eop = '1' THEN
-          received_eop <= TRUE;
+          IF expecting_eop THEN
--- a/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
+++ b/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
        state     <= s_idle;
        i_src_out <= c_dp_sosi_rst;
        received_eop <= FALSE;
+        expecting_eop <= FALSE;
--- a/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
+++ b/libraries/base/dp/src/vhdl/dp_fifo_fill_eop.vhd
 -- Purpose:
 --   The FIFO starts outputting data when the output is ready and it has been
 --   filled with more than g_fifo_fill words or an eop signal has been received. 
--- a/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd 0 → 100644
+      dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, i) DOWNTO field_lo(c_hdr_field_arr, i)) <= c_hdr_field_arr(i).default(c_hdr_field_arr(i).size-1 DOWNTO 0);
+    END LOOP;
+    -- Overwrite fields comming from inputs
+    dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, "eth_src_mac") DOWNTO field_lo(c_hdr_field_arr, "eth_src_mac")) <= arp_sha;
+    dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, "arp_sha")     DOWNTO field_lo(c_hdr_field_arr, "arp_sha")) <= arp_sha;
+    dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, "arp_spa")     DOWNTO field_lo(c_hdr_field_arr, "arp_spa")) <= arp_spa;
+    dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, "arp_tpa")     DOWNTO field_lo(c_hdr_field_arr, "arp_tpa")) <= arp_tpa;
+  END PROCESS;
+     
+  -- pps counter process setting sop, eop and valid
+  p_dp_pps : PROCESS (dp_clk, dp_rst)
+  BEGIN
+    IF dp_rst = '1' THEN
+      trigger <= FALSE;
+      pps_cnt <= 0;
+      dp_field_blk_snk_in.sop <= '0';
--- a/libraries/io/nw_10GbE/src/vhdl/nw_ping_response.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/src/vhdl/nw_ping_response.vhd 0 → 100644
+  CONSTANT c_cin_w : NATURAL := 4;
+  CONSTANT c_pipeline : NATURAL := c_network_total_header_64b_nof_words + 5; -- Header length and 5 more pipeline cycles to allow for the other states
+
+  TYPE t_state IS (s_idle, s_capture, s_check, s_sum, s_output, s_wait);
+  
+  TYPE t_reg IS RECORD
+    state  : t_state;
+    word_cnt : NATURAL RANGE 0 TO c_network_total_header_64b_nof_words;
+    hdr_words_arr : t_network_total_header_64b_arr;
+    hdr_fields : t_network_total_header;
+    hdr_response : t_network_total_header_64b_arr;
+    ip_checksum : STD_LOGIC_VECTOR(c_halfword_w -1 DOWNTO 0);
+    icmp_checksum : STD_LOGIC_VECTOR(c_halfword_w -1 DOWNTO 0);
+    ip_sum : UNSIGNED(c_halfword_w + c_cin_w -1 DOWNTO 0);
+    src_out : t_dp_sosi;
+    
--- a/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd 0 → 100644
+USE common_lib.common_field_pkg.ALL;
+USE common_lib.common_network_layers_pkg.ALL;
+USE dp_lib.dp_stream_pkg.ALL;
+USE dp_lib.tb_dp_pkg.ALL;
+
+
+ENTITY tb_nw_arp_request IS
+GENERIC (
+  g_test_backpressure : BOOLEAN := TRUE
+        );
+END tb_nw_arp_request;
+
+
+ARCHITECTURE tb OF tb_nw_arp_request IS
+
+
--- a/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd 0 → 100644
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+--
+-------------------------------------------------------------------------------
+
--- a/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd 0 → 100644
+-------------------------------------------------------------------------------
+--
+-- Copyright (C) 2020
--- a/libraries/io/nw_10GbE/src/vhdl/nw_ping_response.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/src/vhdl/nw_ping_response.vhd 0 → 100644
+LIBRARY IEEE, common_lib, dp_lib, technology_lib, tech_mac_10g_lib;
--- a/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd 0 → 100644
+++ b/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd 0 → 100644
+LIBRARY IEEE, common_lib, dp_lib, technology_lib;
--- a/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd
+++ b/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd
    IF dp_rst = '1' THEN
      trigger <= FALSE;
      pps_cnt <= 0;
-      dp_field_blk_snk_in.sop <= '0';
-      dp_field_blk_snk_in.eop <= '0';
-      dp_field_blk_snk_in.valid <= '0';
+      dp_field_blk_snk_in c_dp_sosi_rst;
--- a/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd
+++ b/libraries/io/nw_10GbE/tb/vhdl/tb_nw_arp_request.vhd
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+-- 
+--     http://www.apache.org/licenses/LICENSE-2.0
+-- 
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
 --
 -------------------------------------------------------------------------------

+-------------------------------------------------------------------------------
+-- Author: R. van der Walle
+