Subversion Repositories esoc

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-- Object        : Package work.package_esoc_configuration

-- Last modified : Thu Oct 10 12:38:17 2013.

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library ieee, std;

use ieee.std_logic_1164.all;

use std.textio.all;

use ieee.numeric_std.all;

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-- Package declaration: ESoC Configuration items

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package package_esoc_configuration is

-- Manufacturer and device ID

constant  esoc_id: std_logic_vector(31 downto 0):= X"71022" & X"001";

-- Version information (version.release)

constant  esoc_version: integer                 := 1;

constant  esoc_release: integer                 := 0;

-- Mode of operation

type esoc_modes is (normal, simulation);

constant esoc_mode: esoc_modes                  := simulation;

-- Boot from ROM

type esoc_brom_modes is (disabled, enabled);

constant esoc_brom_mode: esoc_brom_modes        := disabled;

-- Port count configuration (maximum is 16)

constant  esoc_port_count: integer              := 8;

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-- Package declaration: ESoC Address Mapping

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-- Address mapping

constant  esoc_base                             : integer := 0;                         -- Boundaries of eSoc memory

constant  esoc_size                             : integer := 65280;

constant  esoc_testbench_base                   : integer := 65280;                     -- Base address = 0xFF00

constant  esoc_testbench_size                   : integer := 8;

constant  esoc_search_engine_base               : integer := 34832;                     -- Base address = 0x8810

constant  esoc_search_engine_size               : integer := 8;

constant  esoc_bus_arbiter_base                 : integer := 34816;                     -- Base address = 0x8808 for ID 1

constant  esoc_bus_arbiter_size                 : integer := 8;                         -- Base address = 0x8800 for ID 0

constant  esoc_control_base                     : integer := 32768;                     -- Base address = 0x8000

constant  esoc_control_size                     : integer := 8;

constant  esoc_port_mac_base                    : integer := 0;                         -- Base address = port_base + port_nr * port_base_offset

constant  esoc_port_mac_size                    : integer := 256;

constant  esoc_port_mal_base                    : integer := 384;

constant  esoc_port_mal_size                    : integer := 8;

constant  esoc_port_proc_base                   : integer := 400;

constant  esoc_port_proc_size                   : integer := 16;

constant  esoc_port_base_offset                 : integer := 2048;

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-- Package declaration: ESoC Design items

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-- Configuration of clock and clock enables 

constant clk_control_freq                       : integer := 50000000;

constant clk_data_freq                          : integer := 125000000;

constant clk_search_freq                        : integer := 100000000;

constant clk_search_en_div_1s                   : integer := clk_search_freq/1;         -- 1s enable    --> 100MHz / 1Hz

constant clk_search_en_div_1s_sim               : integer := clk_search_freq/100000;    -- 10us enable  --> 100MHz / 100kHz

-- Number of metastability flip flops

constant  esoc_meta_ffs                         : integer := 2;

-- Ethernet Packet Known Values

constant  esoc_ethernet_uc_mc_bc                : integer := 40;                        -- if bit 40 of the DA is 0 it is a uni cast else a multicast or even broadcast

constant  esoc_ethernet_vlan_type               : std_logic_vector(15 downto 0) := X"8100";

constant  esoc_ethernet_vlan_qos                : std_logic_vector(11 downto 0) := X"000";

constant  esoc_ethernet_ipv4_type               : std_logic_vector(15 downto 0) := X"0800";

constant  esoc_ethernet_ipv6_type                : std_logic_vector(15 downto 0) := X"8808";

-- Entity ESoC Port Mal[Inbound] to ESoC Port Processor[Search]

-- Record stored in Header Fifo format (start positions)

constant  esoc_inbound_header_dmac_hi           : integer := 80;                        -- Position of destination MAC in header fifo entry, length is 48 bits

constant  esoc_inbound_header_dmac_lo           : integer := 64;                        -- Position of destination and source MAC in header fifo entry, length is 48 bits

constant  esoc_inbound_header_smac_hi           : integer := 48;                        -- Position of destination and source MAC in header fifo entry, length is 48 bits

constant  esoc_inbound_header_smac_lo           : integer := 16;                        -- Position of source MAC in header fifo entry, length is 48 bits

constant  esoc_inbound_header_vlan              : integer := 4;                         -- Position of vlan ID in header fifo entry, length is 12 bits

constant  esoc_inbound_header_unused3_flag      : integer := 3;                         -- Position of ... flag in header fifo entry, length is 1 bit

constant  esoc_inbound_header_unused2_flag      : integer := 2;                         -- Position of ... flag in header fifo entry, length is 1 bit

constant  esoc_inbound_header_unused1_flag      : integer := 1;                         -- Position of ... flag in header fifo entry, length is 1 bit

constant  esoc_inbound_header_vlan_flag         : integer := 0;                         -- Position of vlan tagged packet flag in header fifo entry, length is 1 bit

-- Entity ESoC Port Mal[Inbound] to ESoC Port Processor[Inbound Control]

-- Record stored in Info Fifo format (start positions)

constant  esoc_inbound_info_length              : integer := 20;                        -- Position of packet length in info fifo entry

constant  esoc_inbound_info_length_size         : integer := 12;                        -- Size of packet length in info fifo entry

constant  esoc_inbound_info_vlan_tci            : integer := 4;                         -- Position of vlan tag in info fifo entry, length is 16 bits

constant  esoc_inbound_info_unused3_flag        : integer := 3;                         -- Position of ... flag in info fifo entry, length is 1 bit

constant  esoc_inbound_info_unused2_flag        : integer := 2;                         -- Position of ... flag in info fifo entry, length is 1 bit

constant  esoc_inbound_info_unused1_flag        : integer := 1;                         -- Position of ... flag in info fifo entry, length is 1 bit

constant  esoc_inbound_info_vlan_flag           : integer := 0;                         -- Position of vlan tagged packet flag in info fifo entry, length is 1 bit

-- Entity ESoC Port Processor[Outbound Control] to ESoC Port Mal[Outbound]

-- Record stored in Info Fifo format (start positions)

constant  esoc_outbound_info_length             : integer := 4;                         -- Position of packet length in info fifo entry

constant  esoc_outbound_info_length_size        : integer := 12;                        -- Size of packet length in info fifo entry

constant  esoc_outbound_info_unused3_flag       : integer := 3;                         -- Position of ... flag in info fifo entry, length is 1 bit

constant  esoc_outbound_info_unused2_flag       : integer := 2;                         -- Position of ... flag in info fifo entry, length is 1 bit

constant  esoc_outbound_info_vlan_flag          : integer := 1;                         -- Position of vlan tagged packet flag in info fifo entry, length is 1 bit

constant  esoc_outbound_info_error_flag         : integer := 0;                         -- Position of error flag in info fifo entry, length is 1 bit

-- Entity ESoC Port Processor[Inbound Control] to ESoC Port Processor[Outbound Control]

-- Record prepended for each packet transferred over data bus (start positions)

constant  esoc_dbus_packet_info_sport          : integer := 32;                         -- Position of ESoC source port in prependeded packet info DWORD, length is 4 bits

constant  esoc_dbus_packet_info_length         : integer := 20;                         -- Position of packet length in prependeded packet info DWORD

constant  esoc_dbus_packet_info_length_size    : integer := 12;                         -- Size of packet length in prependeded packet info DWORD

constant  esoc_dbus_packet_info_vlan_tci       : integer := 4;                          -- Position of vlan tag in prependeded packet info DWORD, length is 16 bits

constant  esoc_dbus_packet_info_unused3_flag   : integer := 3;                          -- Position of ... flag in prependeded packet info DWORD, length is 1 bit

constant  esoc_dbus_packet_info_unused2_flag   : integer := 2;                          -- Position of ... flag in prependeded packet info DWORD, length is 1 bit

constant  esoc_dbus_packet_info_unused1_flag   : integer := 1;                          -- Position of ... flag in prependeded packet info DWORD, length is 1 bit

constant  esoc_dbus_packet_info_vlan_flag      : integer := 0;                          -- Position of vlan tagged packet flag in prependeded packet info DWORD, length is 1 bit

-- Entity ESoC Port Processor[Search] to ESoC Search Engine

-- Record transferred over search bus (start positions)

constant  esoc_search_bus_sport  : integer := 48;                                       -- Position of ESoC source port, length is 16 bits

constant  esoc_search_bus_vlan   : integer := 48;                                       -- Position of VLAN ID in table entry, length is 12 bit

constant  esoc_search_bus_mac    : integer := 0;                                        -- Position of MAC address in table entry, length is 48 bit

-- Entity ESoC Search Engine configuration

constant  esoc_search_engine_col_depth         : integer := 7;                          -- Depth of collision buffer in number of entries, valid values 0 up to 7, results in a depth of 0 to 7 additional entries. 

constant  esoc_search_engine_hash_delay        : integer := 1;                          -- Hash delay is determined by XOR tree and RAM latency (=1 clock)

-- Entity ESoC Search Engine

-- Record in MAC/VLAN Learning table

constant  esoc_search_entry_valid             : integer := 79;                         -- Position of entry valid flag in table entry, length is 1 bit

constant  esoc_search_entry_update            : integer := 78;                         -- Position of update flag for aging protocol in table entry, length is 1 bit

constant  esoc_search_entry_unused2           : integer := 77;                         -- 

constant  esoc_search_entry_unused1           : integer := 76;                         -- 

constant  esoc_search_entry_destination       : integer := 60;                         -- Position of destination ports in table entry, length is 16 bit

constant  esoc_search_entry_vlan              : integer := 48;                         -- Position of VLAN ID in table entry, length is 12 bit

constant  esoc_search_entry_mac               : integer := 0;                          -- Position of MAC address in table entry, length is 48 bit

end package_esoc_configuration;

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-- Package definitions

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package body package_esoc_configuration is

end package_esoc_configuration;