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from collections import namedtuple, OrderedDict
import trex_stl_stats
from trex_stl_types import *
StreamOnPort = namedtuple('StreamOnPort', ['compiled_stream', 'metadata'])
########## utlity ############
def mult_to_factor (mult, max_bps_l2, max_pps, line_util):
if mult['type'] == 'raw':
return mult['value']
if mult['type'] == 'bps':
return mult['value'] / max_bps_l2
if mult['type'] == 'pps':
return mult['value'] / max_pps
if mult['type'] == 'percentage':
return mult['value'] / line_util
# describes a single port
class Port(object):
STATE_DOWN = 0
STATE_IDLE = 1
STATE_STREAMS = 2
STATE_TX = 3
STATE_PAUSE = 4
PortState = namedtuple('PortState', ['state_id', 'state_name'])
STATES_MAP = {STATE_DOWN: "DOWN",
STATE_IDLE: "IDLE",
STATE_STREAMS: "IDLE",
STATE_TX: "ACTIVE",
STATE_PAUSE: "PAUSE"}
def __init__ (self, port_id, speed, driver, user, comm_link, session_id):
self.port_id = port_id
self.state = self.STATE_IDLE
self.handler = None
self.comm_link = comm_link
self.transmit = comm_link.transmit
self.transmit_batch = comm_link.transmit_batch
self.user = user
self.driver = driver
self.speed = speed
self.streams = {}
self.profile = None
self.session_id = session_id
self.port_stats = trex_stl_stats.CPortStats(self)
self.next_available_id = long(1)
def err(self, msg):
return RC_ERR("port {0} : {1}".format(self.port_id, msg))
def ok(self, data = ""):
return RC_OK(data)
def get_speed_bps (self):
return (self.speed * 1000 * 1000 * 1000)
# take the port
def acquire(self, force = False):
params = {"port_id": self.port_id,
"user": self.user,
"session_id": self.session_id,
"force": force}
command = RpcCmdData("acquire", params)
rc = self.transmit(command.method, command.params)
if rc.good():
self.handler = rc.data()
return self.ok()
else:
return self.err(rc.err())
# release the port
def release(self):
params = {"port_id": self.port_id,
"handler": self.handler}
command = RpcCmdData("release", params)
rc = self.transmit(command.method, command.params)
self.handler = None
if rc.good():
return self.ok()
else:
return self.err(rc.err())
def is_acquired(self):
return (self.handler != None)
def is_active(self):
return(self.state == self.STATE_TX ) or (self.state == self.STATE_PAUSE)
def is_transmitting (self):
return (self.state == self.STATE_TX)
def is_paused (self):
return (self.state == self.STATE_PAUSE)
def sync(self):
params = {"port_id": self.port_id}
command = RpcCmdData("get_port_status", params)
rc = self.transmit(command.method, command.params)
if rc.bad():
return self.err(rc.err())
# sync the port
port_state = rc.data()['state']
if port_state == "DOWN":
self.state = self.STATE_DOWN
elif port_state == "IDLE":
self.state = self.STATE_IDLE
elif port_state == "STREAMS":
self.state = self.STATE_STREAMS
elif port_state == "TX":
self.state = self.STATE_TX
elif port_state == "PAUSE":
self.state = self.STATE_PAUSE
else:
raise Exception("port {0}: bad state received from server '{1}'".format(self.port_id, port_state))
# TODO: handle syncing the streams into stream_db
self.next_available_id = long(rc.data()['max_stream_id']) + 1
return self.ok()
# return TRUE if write commands
def is_port_writable (self):
# operations on port can be done on state idle or state streams
return ((self.state == self.STATE_IDLE) or (self.state == self.STATE_STREAMS))
def __allocate_stream_id (self):
id = self.next_available_id
self.next_available_id += 1
return id
# add streams
def add_streams (self, streams_list):
if not self.is_acquired():
return self.err("port is not owned")
if not self.is_port_writable():
return self.err("Please stop port before attempting to add streams")
# listify
streams_list = streams_list if isinstance(streams_list, list) else [streams_list]
lookup = {}
# allocate IDs
for stream in streams_list:
if stream.get_id() == None:
stream.set_id(self.__allocate_stream_id())
lookup[stream.get_name()] = stream.get_id()
# resolve names
for stream in streams_list:
next_id = -1
next = stream.get_next()
if next:
if not next in lookup:
return self.err("stream dependency error - unable to find '{0}'".format(next))
next_id = lookup[next]
stream.fields['next_stream_id'] = next_id
batch = []
for stream in streams_list:
params = {"handler": self.handler,
"port_id": self.port_id,
"stream_id": stream.get_id(),
"stream": stream.to_json()}
cmd = RpcCmdData('add_stream', params)
batch.append(cmd)
# meta data for show streams
self.streams[stream.get_id()] = StreamOnPort(stream.to_json(),
Port._generate_stream_metadata(stream))
rc = self.transmit_batch(batch)
if not rc:
return self.err(rc.err())
# the only valid state now
self.state = self.STATE_STREAMS
return self.ok()
# remove stream from port
def remove_streams (self, stream_id_list):
if not self.is_acquired():
return self.err("port is not owned")
if not self.is_port_writable():
return self.err("Please stop port before attempting to remove streams")
# single element to list
stream_id_list = stream_id_list if isinstance(stream_id_list, list) else [stream_id_list]
# verify existance
if not all([stream_id in self.streams for stream_id in stream_id_list]):
return self.err("stream {0} does not exists".format(stream_id))
batch = []
for stream_id in stream_id_list:
params = {"handler": self.handler,
"port_id": self.port_id,
"stream_id": stream_id}
cmd = RpcCmdData('remove_stream', params)
batch.append(cmd)
del self.streams[stream_id]
rc = self.transmit_batch(batch)
if not rc:
return self.err(rc.err())
self.state = self.STATE_STREAMS if (len(self.streams) > 0) else self.STATE_IDLE
return self.ok()
# remove all the streams
def remove_all_streams (self):
if not self.is_acquired():
return self.err("port is not owned")
if not self.is_port_writable():
return self.err("Please stop port before attempting to remove streams")
params = {"handler": self.handler,
"port_id": self.port_id}
rc = self.transmit("remove_all_streams", params)
if not rc:
return self.err(rc.err())
self.streams = {}
self.state = self.STATE_IDLE
return self.ok()
# get a specific stream
def get_stream (self, stream_id):
if stream_id in self.streams:
return self.streams[stream_id]
else:
return None
def get_all_streams (self):
return self.streams
# start traffic
def start (self, mul, duration, force):
if not self.is_acquired():
return self.err("port is not owned")
if self.state == self.STATE_DOWN:
return self.err("Unable to start traffic - port is down")
if self.state == self.STATE_IDLE:
return self.err("Unable to start traffic - no streams attached to port")
if self.state == self.STATE_TX:
return self.err("Unable to start traffic - port is already transmitting")
params = {"handler": self.handler,
"port_id": self.port_id,
"mul": mul,
"duration": duration,
"force": force}
rc = self.transmit("start_traffic", params)
if rc.bad():
return self.err(rc.err())
self.state = self.STATE_TX
return self.ok()
# stop traffic
# with force ignores the cached state and sends the command
def stop (self, force = False):
if not self.is_acquired():
return self.err("port is not owned")
# port is already stopped
if not force:
if (self.state == self.STATE_IDLE) or (self.state == self.state == self.STATE_STREAMS):
return self.ok()
params = {"handler": self.handler,
"port_id": self.port_id}
rc = self.transmit("stop_traffic", params)
if rc.bad():
return self.err(rc.err())
# only valid state after stop
self.state = self.STATE_STREAMS
return self.ok()
def pause (self):
if not self.is_acquired():
return self.err("port is not owned")
if (self.state != self.STATE_TX) :
return self.err("port is not transmitting")
params = {"handler": self.handler,
"port_id": self.port_id}
rc = self.transmit("pause_traffic", params)
if rc.bad():
return self.err(rc.err())
# only valid state after stop
self.state = self.STATE_PAUSE
return self.ok()
def resume (self):
if not self.is_acquired():
return self.err("port is not owned")
if (self.state != self.STATE_PAUSE) :
return self.err("port is not in pause mode")
params = {"handler": self.handler,
"port_id": self.port_id}
rc = self.transmit("resume_traffic", params)
if rc.bad():
return self.err(rc.err())
# only valid state after stop
self.state = self.STATE_TX
return self.ok()
def update (self, mul, force):
if not self.is_acquired():
return self.err("port is not owned")
if (self.state != self.STATE_TX) :
return self.err("port is not transmitting")
params = {"handler": self.handler,
"port_id": self.port_id,
"mul": mul,
"force": force}
rc = self.transmit("update_traffic", params)
if rc.bad():
return self.err(rc.err())
return self.ok()
def validate (self):
if not self.is_acquired():
return self.err("port is not owned")
if (self.state == self.STATE_DOWN):
return self.err("port is down")
if (self.state == self.STATE_IDLE):
return self.err("no streams attached to port")
params = {"handler": self.handler,
"port_id": self.port_id}
rc = self.transmit("validate", params)
if rc.bad():
return self.err(rc.err())
self.profile = rc.data()
return self.ok()
def get_profile (self):
return self.profile
def print_profile (self, mult, duration):
if not self.get_profile():
return
rate = self.get_profile()['rate']
graph = self.get_profile()['graph']
print format_text("Profile Map Per Port\n", 'underline', 'bold')
factor = mult_to_factor(mult, rate['max_bps_l2'], rate['max_pps'], rate['max_line_util'])
print "Profile max BPS L2 (base / req): {:^12} / {:^12}".format(format_num(rate['max_bps_l2'], suffix = "bps"),
format_num(rate['max_bps_l2'] * factor, suffix = "bps"))
print "Profile max BPS L1 (base / req): {:^12} / {:^12}".format(format_num(rate['max_bps_l1'], suffix = "bps"),
format_num(rate['max_bps_l1'] * factor, suffix = "bps"))
print "Profile max PPS (base / req): {:^12} / {:^12}".format(format_num(rate['max_pps'], suffix = "pps"),
format_num(rate['max_pps'] * factor, suffix = "pps"),)
print "Profile line util. (base / req): {:^12} / {:^12}".format(format_percentage(rate['max_line_util']),
format_percentage(rate['max_line_util'] * factor))
# duration
exp_time_base_sec = graph['expected_duration'] / (1000 * 1000)
exp_time_factor_sec = exp_time_base_sec / factor
# user configured a duration
if duration > 0:
if exp_time_factor_sec > 0:
exp_time_factor_sec = min(exp_time_factor_sec, duration)
else:
exp_time_factor_sec = duration
print "Duration (base / req): {:^12} / {:^12}".format(format_time(exp_time_base_sec),
format_time(exp_time_factor_sec))
print "\n"
def get_port_state_name(self):
return self.STATES_MAP.get(self.state, "Unknown")
################# stats handler ######################
def generate_port_stats(self):
return self.port_stats.generate_stats()
def generate_port_status(self):
return {"type": self.driver,
"maximum": "{speed} Gb/s".format(speed=self.speed),
"status": self.get_port_state_name()
}
def clear_stats(self):
return self.port_stats.clear_stats()
def get_stats (self):
return self.port_stats.get_stats()
def invalidate_stats(self):
return self.port_stats.invalidate()
################# stream printout ######################
def generate_loaded_streams_sum(self, stream_id_list):
if self.state == self.STATE_DOWN or self.state == self.STATE_STREAMS:
return {}
streams_data = {}
if not stream_id_list:
# if no mask has been provided, apply to all streams on port
stream_id_list = self.streams.keys()
streams_data = {stream_id: self.streams[stream_id].metadata.get('stream_sum', ["N/A"] * 6)
for stream_id in stream_id_list
if stream_id in self.streams}
return {"referring_file" : "",
"streams" : streams_data}
@staticmethod
def _generate_stream_metadata(stream):
meta_dict = {}
# create packet stream description
#pkt_bld_obj = packet_builder.CTRexPktBuilder()
#pkt_bld_obj.load_from_stream_obj(compiled_stream_obj)
# generate stream summary based on that
#next_stream = "None" if stream['next_stream_id']==-1 else stream['next_stream_id']
meta_dict['stream_sum'] = OrderedDict([("id", stream.get_id()),
("packet_type", "FIXME!!!"),
("L2 len", "FIXME!!! +++4"),
("mode", "FIXME!!!"),
("rate_pps", "FIXME!!!"),
("next_stream", "FIXME!!!")
])
return meta_dict
################# events handler ######################
def async_event_port_stopped (self):
self.state = self.STATE_STREAMS
def async_event_port_started (self):
self.state = self.STATE_TX
def async_event_port_paused (self):
self.state = self.STATE_PAUSE
def async_event_port_resumed (self):
self.state = self.STATE_TX
def async_event_forced_acquired (self):
self.handler = None
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