def run(self, app, sonata_fields):
self.logger.info('run')
# compile app to p4
self.logger.info('init P4 application object')
self.app = P4Application(app, sonata_fields)
self.logger.info('generate p4 code and commands')
p4_src = self.app.get_p4_code()
write_to_file(self.P4_COMPILED, p4_src)
p4_commands = self.app.get_commands()
commands_string = "\n".join(p4_commands)
# self.logger.info("Commands: " + commands_string)
write_to_file(self.P4_COMMANDS, commands_string)
# compile p4 to json
self.logger.info('compile p4 code to json')
# TODO: uncomment this line
self.dataplane.compile_p4(self.P4_COMPILED, self.JSON_P4_COMPILED)
# initialize dataplane and run the configuration
self.logger.info(
'initialize the dataplane with the json configuration')
# TODO: uncomment this line
self.dataplane.initialize(self.JSON_P4_COMPILED, self.P4_COMMANDS)
# start the emitter
if self.em_conf:
self.logger.info('start the emitter')
em = Emitter(self.em_conf, self.app.get_header_formats())
em_thread = Thread(name='emitter', target=em.start)
em_thread.setDaemon(True)
em_thread.start()
def update(self, filter_update):
self.logger.info('update')
# Reset the data plane registers/tables before pushing the new delta config
# self.dataplane.reset_switch_state()
# Get the commands to add new filter flow rules
commands = self.app.get_update_commands(filter_update)
commands_string = "\n".join(commands)
write_to_file(self.P4_DELTA_COMMANDS, commands_string)
self.dataplane.send_commands(self.JSON_P4_COMPILED, self.P4_COMMANDS)
self.dataplane.send_commands(self.JSON_P4_COMPILED, self.P4_DELTA_COMMANDS)
def delete_entries_from_table(number_of_entries, table_name, dataplane,
JSON_P4_COMPILED, P4_DELTA_COMMANDS, logger):
start = time.time()
commands = []
for i in range(0, number_of_entries):
CMD = "table_delete %s %s" % (table_name, i)
commands.append(CMD)
commands_string = "\n".join(commands)
# print commands_string
write_to_file(P4_DELTA_COMMANDS, commands_string)
dataplane.send_commands(JSON_P4_COMPILED, P4_DELTA_COMMANDS)
end = time.time()
logger.info("delete|" + str(number_of_entries) + "|" + str(start) + "|" +
str(end))
def add_entries_to_table(number_of_entries, table_name, p4_dataplane_obj,
JSON_P4_COMPILED, P4_DELTA_COMMANDS, logger):
start = time.time()
commands = []
for i in range(0, number_of_entries):
IP = "%d.%d.0.0" % (random.randint(0, 255), random.randint(0, 255))
CMD = "table_add %s _nop %s/16 =>" % (table_name, IP)
commands.append(CMD)
commands_string = "\n".join(commands)
# print commands_string
write_to_file(P4_DELTA_COMMANDS, commands_string)
p4_dataplane_obj.send_commands(JSON_P4_COMPILED, P4_DELTA_COMMANDS)
end = time.time()
logger.info("update|" + str(number_of_entries) + "|" + str(start) + "|" +
str(end))
CLI_PATH = BMV2_SWITCH_BASE + target_conf['cli_path']
THRIFTPORT = target_conf['thriftport']
P4_COMMANDS = COMPILED_SRCS + target_conf['p4_commands']
P4_DELTA_COMMANDS = COMPILED_SRCS + target_conf['p4_delta_commands']
# interfaces
interfaces = {
'receiver': ['m-veth-1', 'out-veth-1'],
'sender': ['m-veth-2', 'out-veth-2'],
'original': ['m-veth-3', 'out-veth-3']
}
p4_src, p4_commands, registers = get_sequential_code(NUMBER_OF_REGISTERS)
write_to_file(P4_COMPILED, p4_src)
commands_string = "\n".join(p4_commands)
write_to_file(P4_COMMANDS, commands_string)
dataplane = P4DataPlane(interfaces, SWITCH_PATH, CLI_PATH, THRIFTPORT,
P4C_BM_SCRIPT)
dataplane.compile_p4(P4_COMPILED, JSON_P4_COMPILED)
dataplane.create_interfaces()
cmd = dataplane.switch_path + " >/dev/null 2>&1"
get_out(cmd)
# initialize_the_switch(JSON_P4_COMPILED, SWITCH_PATH)
Switch(JSON_P4_COMPILED, SWITCH_PATH).start()
time.sleep(1)
THRIFTPORT = target_conf['thriftport']
P4_COMMANDS = COMPILED_SRCS + target_conf['p4_commands']
P4_DELTA_COMMANDS = COMPILED_SRCS + target_conf['p4_delta_commands']
# interfaces
interfaces = {
'receiver': ['m-veth-1', 'out-veth-1'],
'sender': ['m-veth-2', 'out-veth-2'],
'original': ['m-veth-3', 'out-veth-3']
}
p4_src, p4_commands, filter_table_name = get_sequential_code(
NUMBER_OF_QUERIES, MAX_TABLE_ENTRIES)
write_to_file(P4_COMPILED, p4_src)
commands_string = "\n".join(p4_commands)
write_to_file(P4_COMMANDS, commands_string)
dataplane = P4DataPlane(interfaces, SWITCH_PATH, CLI_PATH, THRIFTPORT,
P4C_BM_SCRIPT)
dataplane.compile_p4(P4_COMPILED, JSON_P4_COMPILED)
dataplane.create_interfaces()
cmd = dataplane.switch_path + " >/dev/null 2>&1"
get_out(cmd)
# initialize_the_switch(JSON_P4_COMPILED, SWITCH_PATH)
Switch(JSON_P4_COMPILED, SWITCH_PATH).start()