Subversion Repositories srdydrdy_lib

// Address size for number of ports.  Default value 4,

// which will allow design to scale up to 16 ports

`define PORT_ASZ    4

// We will have only 4 ports in our sample design

`define NUM_PORTS   4

// Data structure from parser to FIB.  Contains MAC DA,

// MAC SA, and source port

`define PAR_DATA_SZ (48+48+4)

`define PAR_MACDA    47:0

`define PAR_MACSA    95:48

`define PAR_SRCPORT  99:96

// number of entries in FIB table

`define FIB_ENTRIES   256

`define FIB_ASZ       $clog2(`FIB_ENTRIES)

// FIB entry definition

`define FIB_ENTRY_SZ  60

`define FIB_MACADDR   47:0     // MAC address

`define FIB_AGE       55:48    // 8 bit age counter

`define FIB_PORT      59:56    // associated port

`define FIB_MAX_AGE   255      // maximum value of age timer

`define MULTICAST     48'h0100000000  // multicast bit

// Packet control codes

`define PCC_SOP     2'b01    // Start of packet

`define PCC_DATA    2'b00    // data word

`define PCC_EOP     2'b10    // End of packet

`define PCC_BADEOP  2'b11    // End of packet w/ error

// Packet Ring Word

`define PRW_SZ       70

`define PRW_DATA     63:0      // 64 bits of packet data

`define PRW_PCC      65:64     // packet control code

`define PRW_VALID    68:66     // # of valid bytes modulo 8

`define PRW_PVEC     69        // indicates this is port vector word