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https://opencores.org/ocsvn/udp_ip_stack/udp_ip_stack/trunk
Subversion Repositories udp_ip_stack
[/] [udp_ip_stack/] [tags/] [v2.0/] [rtl/] [vhdl/] [ipv4_types.vhd] - Rev 22
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-- -- -- Purpose: This package defines types for use in IPv4 library IEEE; use IEEE.STD_LOGIC_1164.all; use work.axi.all; use work.arp_types.all; package ipv4_types is constant IP_BC_ADDR : std_logic_vector (31 downto 0) := x"ffffffff"; constant MAC_BC_ADDR : std_logic_vector (47 downto 0) := x"ffffffffffff"; -------------- -- IPv4 TX -- -------------- -- coding for result in tx constant IPTX_RESULT_NONE : std_logic_vector (1 downto 0) := "00"; constant IPTX_RESULT_SENDING : std_logic_vector (1 downto 0) := "01"; constant IPTX_RESULT_ERR : std_logic_vector (1 downto 0) := "10"; constant IPTX_RESULT_SENT : std_logic_vector (1 downto 0) := "11"; type ipv4_tx_header_type is record protocol : std_logic_vector (7 downto 0); data_length : STD_LOGIC_VECTOR (15 downto 0); -- user data size, bytes dst_ip_addr : STD_LOGIC_VECTOR (31 downto 0); end record; type ipv4_tx_type is record hdr : ipv4_tx_header_type; -- header to tx data : axi_out_type; -- tx axi bus end record; -------------- -- IPv4 RX -- -------------- -- coding for last_error_code in rx hdr constant RX_EC_NONE : std_logic_vector (3 downto 0) := x"0"; constant RX_EC_ET_ETH : std_logic_vector (3 downto 0) := x"1"; -- early termination in ETH hdr phase constant RX_EC_ET_IP : std_logic_vector (3 downto 0) := x"2"; -- early termination in IP hdr phase constant RX_EC_ET_USER : std_logic_vector (3 downto 0) := x"3"; -- early termination in USER DATA phase type ipv4_rx_header_type is record is_valid : std_logic; protocol : std_logic_vector (7 downto 0); data_length : STD_LOGIC_VECTOR (15 downto 0); -- user data size, bytes src_ip_addr : STD_LOGIC_VECTOR (31 downto 0); num_frame_errors : std_logic_vector (7 downto 0); last_error_code : std_logic_vector (3 downto 0); -- see RX_EC_xxx constants is_broadcast : std_logic; -- set if the msg received is a broadcast end record; type ipv4_rx_type is record hdr : ipv4_rx_header_type; -- header received data : axi_in_type; -- rx axi bus end record; type ip_control_type is record arp_controls : arp_control_type; end record; ------------ -- UDP TX -- ------------ -- coding for result in tx constant UDPTX_RESULT_NONE : std_logic_vector (1 downto 0) := "00"; constant UDPTX_RESULT_SENDING : std_logic_vector (1 downto 0) := "01"; constant UDPTX_RESULT_ERR : std_logic_vector (1 downto 0) := "10"; constant UDPTX_RESULT_SENT : std_logic_vector (1 downto 0) := "11"; type udp_tx_header_type is record dst_ip_addr : STD_LOGIC_VECTOR (31 downto 0); dst_port : STD_LOGIC_VECTOR (15 downto 0); src_port : STD_LOGIC_VECTOR (15 downto 0); data_length : STD_LOGIC_VECTOR (15 downto 0); -- user data size, bytes checksum : STD_LOGIC_VECTOR (15 downto 0); end record; type udp_tx_type is record hdr : udp_tx_header_type; -- header received data : axi_out_type; -- tx axi bus end record; ------------ -- UDP RX -- ------------ type udp_rx_header_type is record is_valid : std_logic; src_ip_addr : STD_LOGIC_VECTOR (31 downto 0); src_port : STD_LOGIC_VECTOR (15 downto 0); dst_port : STD_LOGIC_VECTOR (15 downto 0); data_length : STD_LOGIC_VECTOR (15 downto 0); -- user data size, bytes end record; type udp_rx_type is record hdr : udp_rx_header_type; -- header received data : axi_in_type; -- rx axi bus end record; type udp_addr_type is record ip_addr : STD_LOGIC_VECTOR (31 downto 0); port_num : STD_LOGIC_VECTOR (15 downto 0); end record; type udp_control_type is record ip_controls : ip_control_type; end record; end ipv4_types;
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