133 lines
3.1 KiB
Text
133 lines
3.1 KiB
Text
#include <core.p4>
|
|
#include <sume_switch.p4>
|
|
#include "headers.p4"
|
|
|
|
/********************************************************************************
|
|
* Header
|
|
*/
|
|
|
|
typedef bit<48> EthAddr_t;
|
|
header Ethernet_h {
|
|
EthAddr_t dstAddr;
|
|
EthAddr_t srcAddr;
|
|
bit<16> etherType;
|
|
}
|
|
|
|
struct Parsed_packet {
|
|
Ethernet_h ethernet;
|
|
}
|
|
|
|
// user defined metadata: can be used to share information between
|
|
// TopParser, TopPipe, and TopDeparser
|
|
struct user_metadata_t {
|
|
bit<8> unused;
|
|
}
|
|
|
|
// digest_data, MUST be 256 bits -- what is this used for?
|
|
struct digest_data_t {
|
|
bit<256> unused;
|
|
}
|
|
|
|
|
|
/********************************************************************************
|
|
* Parser
|
|
*/
|
|
|
|
@Xilinx_MaxPacketRegion(1024)
|
|
parser TopParser(packet_in b,
|
|
out Parsed_packet p,
|
|
out user_metadata_t user_metadata,
|
|
out digest_data_t digest_data,
|
|
inout sume_metadata_t sume_metadata) {
|
|
state start {
|
|
b.extract(p.ethernet);
|
|
user_metadata.unused = 0;
|
|
digest_data.unused = 0;
|
|
|
|
transition accept;
|
|
}
|
|
}
|
|
|
|
/********************************************************************************
|
|
* Main
|
|
*/
|
|
control TopPipe(inout Parsed_packet p,
|
|
inout user_metadata_t user_metadata,
|
|
inout digest_data_t digest_data,
|
|
inout sume_metadata_t sume_metadata) {
|
|
|
|
action swap_eth_addresses() {
|
|
EthAddr_t temp = p.ethernet.dstAddr;
|
|
p.ethernet.dstAddr = p.ethernet.srcAddr;
|
|
p.ethernet.srcAddr = temp;
|
|
|
|
/* set egress port */
|
|
sume_metadata.dst_port = sume_metadata.src_port;
|
|
}
|
|
|
|
action send_to_port1() {
|
|
sume_metadata.dst_port = 1;
|
|
}
|
|
|
|
action send_to_all_ports() {
|
|
/* Taken from commands.txt of the "int" project:
|
|
table_cam_add_entry forward set_output_port 0xffffffffffff => 0b01010101
|
|
|
|
python convert:
|
|
>>> 0b01010101
|
|
85
|
|
|
|
*/
|
|
sume_metadata.dst_port = 85;
|
|
}
|
|
|
|
action do_nothing() {
|
|
EthAddr_t temp = p.ethernet.dstAddr;
|
|
}
|
|
|
|
table lookup_table {
|
|
key = {
|
|
p.ethernet.dstAddr: exact;
|
|
}
|
|
|
|
actions = {
|
|
swap_eth_addresses;
|
|
do_nothing;
|
|
send_to_port1;
|
|
send_to_all_ports;
|
|
}
|
|
size = 64;
|
|
// default_action = swap_eth_addresses; // test_mirror(): in gen_testdata.py
|
|
// default_action = send_to_port1; // test_port1()
|
|
default_action = send_to_all_ports; // test_allports():
|
|
}
|
|
|
|
apply {
|
|
lookup_table.apply();
|
|
}
|
|
}
|
|
|
|
/********************************************************************************
|
|
* Deparser
|
|
*/
|
|
|
|
@Xilinx_MaxPacketRegion(1024)
|
|
control TopDeparser(packet_out b,
|
|
in Parsed_packet p,
|
|
in user_metadata_t user_metadata,
|
|
inout digest_data_t digest_data,
|
|
inout sume_metadata_t sume_metadata) {
|
|
apply {
|
|
b.emit(p.ethernet);
|
|
}
|
|
}
|
|
|
|
/********************************************************************************
|
|
* Switch
|
|
*/
|
|
|
|
SimpleSumeSwitch(
|
|
TopParser(),
|
|
TopPipe(),
|
|
TopDeparser()
|
|
) main;
|