l2_fm_dn.tcl

基于IBM的NPU

# Sample testcase generator script for layer-2 FM egress LID tree
#

proc l2_fm_down { testcase } {

   set h0    [ $testcase find_memory h0 ]
   set dram3 [ $testcase find_memory dram3 ]
   set zbt   [ $testcase find_memory zbt ]

puts ""
puts "Create DN direct table"

#------------------------------------------------------------------------
#  Create and configure a full match ( FM ) tree for egress
#------------------------------------------------------------------------
set fm [ $testcase create_tree 43 ]
$fm configure                   -name fm_tree_down
$fm configure                   -tree_type 0
$fm configure                   -key_max_num_bits 32
$fm configure                   -pscb_block fm_down_pscb_mem
$fm configure                   -leaf_block fm_down_leaf_mem
$fm configure                   -dt_block   fm_down_dt_mem
$fm configure                   -leaf_num_user_bytes 3

#------------------------------------------------------------------------
# Insert keys
#------------------------------------------------------------------------
# control overhead is 5 bytes (40 bits)
# key is 4 bytes (32 bits)
# leaf data is 3 bytes (24 bits)
# total is 12 bytes (96 bits)
#              ***********  Lid ***************       QID
$fm insert_key 00000000000000000000000000000000 -data 000000
$fm insert_key 00000000000000010000000100000001 -data 000001
$fm insert_key 00000000000000100000001000000010 -data 000002
$fm insert_key 00000000000000110000001100000011 -data 000003
$fm insert_key 00000000000001000000010000000100 -data 000004
$fm insert_key 00000000000001010000010100000101 -data 000005
$fm insert_key 00000000000001100000011000000110 -data 000006
$fm insert_key 00000000000001110000011100000111 -data 000007
$fm insert_key 00000000000010000000100000001000 -data 000008
$fm insert_key 00000000000010010000100100001001 -data 000009
$fm insert_key 00000000000000000001000000010000 -data 00000a
$fm insert_key 00000000000000010001000100010001 -data 00000b
$fm insert_key 00000000000000100001001000010010 -data 00000c
$fm insert_key 00000000000000110001001100010011 -data 00000d
$fm insert_key 00000000000001000001010000010100 -data 00000e
$fm insert_key 00000000000001010001010100010101 -data 00000f
$fm insert_key 00000000000001100001011000010110 -data 000010
$fm insert_key 00000000000001110001011100010111 -data 000011
$fm insert_key 00000000000010000001100000011000 -data 000012
$fm insert_key 00000000000010010001100100011001 -data 000013
$fm insert_key 00000000000100000010000000100000 -data 000014
$fm insert_key 00000000000000010010000100100001 -data 000015
$fm insert_key 00000000000000100010001000100010 -data 000016
$fm insert_key 00000000000000110010001100100011 -data 000017
$fm insert_key 00000000000001000010010000100100 -data 000018
$fm insert_key 00000000000001010010010100100101 -data 000019
$fm insert_key 00000000000001100010011000100110 -data 00001a
$fm insert_key 00000000000001110010011100100111 -data 00001b
$fm insert_key 00000000000010000010100000101000 -data 00001c
$fm insert_key 00000000000010010010100100101001 -data 00001d
$fm insert_key 00000000000000000011000000110000 -data 00001e
$fm insert_key 00000000000000010011000100110001 -data 00001f
$fm insert_key 00000000000000100011001000110010 -data 000020
$fm insert_key 00000000000000110011001100110011 -data 000021
$fm insert_key 00000000000001000011010000110100 -data 000022
$fm insert_key 00000000000001010011010100110101 -data 000023
$fm insert_key 00000000000001100011011000110110 -data 000024
$fm insert_key 00000000000001110011011100110111 -data 000025
$fm insert_key 00000000000010000011100000111000 -data 000026
$fm insert_key 00000000000010010011100100111001 -data 000027

#------------------------------------------------------------------------

#  Check
#------------------------------------------------------------------------
puts "key 00043434 should go to 34: [ $fm find_key 00000000000001000011010000110100 ]"

#------------------------------------------------------------------------
#  Allocate memory blocks
#------------------------------------------------------------------------
# sram H0 is 128 bits wide - Dn is 96 bits - will fit with height = 1
#
$h0         allocate fm_down_leaf_mem -size [ $fm cget -num_leaves ]
$dram3      allocate fm_down_dt_mem -size [ $fm cget -dt_size ] 
$zbt        allocate fm_down_pscb_mem  -size [ expr 2 * [ $fm cget -num_pscbs ] ]

}