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USE ieee.std_logic_1164.ALL;
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USE ieee.std_logic_1164.ALL;
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use IEEE.NUMERIC_STD.ALL;
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use IEEE.NUMERIC_STD.ALL;
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use work.axi.all;
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use work.axi.all;
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use work.ipv4_types.all;
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use work.ipv4_types.all;
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use work.arp_types.all;
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use work.arp_types.all;
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use work.arp;
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use work.arpv2;
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entity IP_complete_nomac is
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entity IP_complete_nomac is
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generic (
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generic (
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CLOCK_FREQ : integer := 125000000; -- freq of data_in_clk -- needed to timout cntr
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CLOCK_FREQ : integer := 125000000; -- freq of data_in_clk -- needed to timout cntr
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ARP_TIMEOUT : integer := 60 -- ARP response timeout (s)
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ARP_TIMEOUT : integer := 60; -- ARP response timeout (s)
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ARP_MAX_PKT_TMO : integer := 5; -- # wrong nwk pkts received before set error
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MAX_ARP_ENTRIES : integer := 255 -- max entries in the ARP store
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);
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);
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Port (
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Port (
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-- IP Layer signals
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-- IP Layer signals
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ip_tx_start : in std_logic;
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ip_tx_start : in std_logic;
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ip_tx : in ipv4_tx_type; -- IP tx cxns
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ip_tx : in ipv4_tx_type; -- IP tx cxns
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mac_rx_tready : out std_logic; -- tells mac that we are ready to take data
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mac_rx_tready : out std_logic; -- tells mac that we are ready to take data
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mac_rx_tlast : in std_logic -- indicates last byte of the trame
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mac_rx_tlast : in std_logic -- indicates last byte of the trame
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);
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);
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end IP_complete_nomac;
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end IP_complete_nomac;
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architecture structural of IP_complete_nomac is
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architecture structural of IP_complete_nomac is
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COMPONENT IPv4
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COMPONENT IPv4
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PORT(
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PORT(
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-- IP Layer signals
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-- IP Layer signals
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END COMPONENT;
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END COMPONENT;
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COMPONENT arp
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COMPONENT arp
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generic (
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generic (
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CLOCK_FREQ : integer := 125000000; -- freq of data_in_clk -- needed to timout cntr
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CLOCK_FREQ : integer := 125000000; -- freq of data_in_clk -- needed to timout cntr
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ARP_TIMEOUT : integer := 60 -- ARP response timeout (s)
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ARP_TIMEOUT : integer := 60; -- ARP response timeout (s)
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ARP_MAX_PKT_TMO : integer := 1; -- (added for compatibility with arpv2. this value not used in this impl)
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MAX_ARP_ENTRIES : integer := 1 -- (added for compatibility with arpv2. this value not used in this impl)
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);
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);
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Port (
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Port (
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-- lookup request signals
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-- lookup request signals
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arp_req_req : in arp_req_req_type;
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arp_req_req : in arp_req_req_type;
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arp_req_rslt : out arp_req_rslt_type;
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arp_req_rslt : out arp_req_rslt_type;
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first : out std_logic; -- indicates first byte of frame
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first : out std_logic; -- indicates first byte of frame
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last : out std_logic -- indicates last byte of frame
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last : out std_logic -- indicates last byte of frame
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);
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);
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END COMPONENT;
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END COMPONENT;
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-------------------
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-- Configuration
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--
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-- Enable one of the following to specify which
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-- implementation of the ARP layer to use
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-------------------
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-- for arp_layer : arp use entity work.arp; -- single slot arbitrator
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for arp_layer : arp use entity work.arpv2; -- multislot arbitrator
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---------------------------
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---------------------------
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-- Signals
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-- Signals
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---------------------------
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---------------------------
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-- ARP REQUEST
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-- ARP REQUEST
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-- Instantiate the ARP layer
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-- Instantiate the ARP layer
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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arp_layer : arp
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arp_layer : arp
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generic map (
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generic map (
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CLOCK_FREQ => CLOCK_FREQ,
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CLOCK_FREQ => CLOCK_FREQ,
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ARP_TIMEOUT => ARP_TIMEOUT
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ARP_TIMEOUT => ARP_TIMEOUT,
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ARP_MAX_PKT_TMO => ARP_MAX_PKT_TMO,
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MAX_ARP_ENTRIES => MAX_ARP_ENTRIES
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)
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)
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Port map(
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Port map(
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-- request signals
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-- request signals
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arp_req_req => arp_req_req_int,
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arp_req_req => arp_req_req_int,
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arp_req_rslt => arp_req_rslt_int,
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arp_req_rslt => arp_req_rslt_int,
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);
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);
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end structural;
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end structural;
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