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Refractored Breakout Mode CLI subcommand with speed fix #7

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Dec 13, 2019
Merged

Refractored Breakout Mode CLI subcommand with speed fix #7

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78 changes: 6 additions & 72 deletions config/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,16 +35,6 @@
SYSLOG_IDENTIFIER = "config"
PORT_STR = "Ethernet"


# Regex for breakout mode
BRKOUT_PATTERN = r'(\d{1,3})x(\d{1,3}G)(\[\d{1,3}G\])?(\((\d{1,3})\))?'

""" [TODOFIX | IGNORE]: will change the logic like this
i.e. BREAKOUT_CFG_FILE = get_path_to_port_config_file(),
once the sfputil file gets compatible with platform.json
"""


(platform, hwsku) = get_platform_and_hwsku()
BREAKOUT_CFG_FILE = get_port_config_file_name(hwsku, platform)

Expand Down Expand Up @@ -99,61 +89,6 @@ def readJsonFile(fileName):
raise Exception(str(e))
return result


def _get_child_interface_speed_dict(intf, brkout_mode, lane_len):
"""
Returns list of interfaces needed to be deleted or added
to change from running breakout mode to target breakout mode
"""

try:
parent_intf_id = re.search("Ethernet(\d+)", intf)
if parent_intf_id is not None:
id = parent_intf_id.group(1)
else:
raise Exception("parent interface index should not be None.")
except re.error as e:
raise Exception("Invalid regular expression: {}\n Error: {}".format(e.args[0]), e)

# Logic for ASYMMETRIC breakout mode
if re.search("\+",brkout_mode) is not None:
brkout_parts = brkout_mode.split("+")
match_list = [re.match(BRKOUT_PATTERN, i).groups() for i in brkout_parts]
if match_list is not None:
intf_del_list = []
for k in match_list:
num_lane_used, speed, alt_speed, assigned_lane = k[0], k[1], k[2], k[4]
if assigned_lane and num_lane_used:
if intf_del_list:
intf_del_list = [PORT_STR+str(int(id)+int(i)) for i in range(0, int(assigned_lane), int(assigned_lane)/int(num_lane_used))]
child_intf_dict.update(OrderedDict(( i, speed.encode("utf-8")) for i in intf_del_list))
else:
intf_del_list = [PORT_STR+str(int(id)+int(i)) for i in range(0, int(assigned_lane), int(assigned_lane)/int(num_lane_used))]
child_intf_dict = OrderedDict(( i, speed.encode("utf-8")) for i in intf_del_list)
id = int(id) + int(str(assigned_lane))
else:
raise Exception('Not found...')
else:
raise Exception("match_list should not be None.")

# Logic for SYMMETRIC breakout mode
else:
match_list = [re.match(BRKOUT_PATTERN, brkout_mode).groups()]
if match_list is not None:
num_lane_used = match_list[0][0]
if num_lane_used:
intf_del_list = [PORT_STR+str(int(id)+int(i)) for i in range(0,int(lane_len), int(lane_len)/int(num_lane_used))]
else:
raise Exception('Not found...')
else:
raise Exception("match_list should not be None.")
if intf_del_list:
child_intf_dict = OrderedDict(( i, match_list[0][1]) for i in intf_del_list)
else:
raise Exception('Not Found the list of delete interfaces ')
return child_intf_dict


def _get_option(ctx,args,incomplete):
""" Provides dynamic mode option as per user argument i.e. interface name """
global all_mode_options
Expand All @@ -172,8 +107,6 @@ def _get_option(ctx,args,incomplete):
all_mode_options = [str(c) for c in breakout_mode_options if incomplete in c]
return all_mode_options



#
# Helper functions
#
Expand Down Expand Up @@ -1535,7 +1468,8 @@ def breakout(ctx, interface_name, mode, verbose):
sys.exit(0)

# Get list of interfaces to be deleted
del_intf_dict = _get_child_interface_speed_dict(interface_name, cur_brkout_mode,lane_len )
del_ports = parse_platform_json_file(BREAKOUT_CFG_FILE, interface_name, target_brkout_mode=cur_brkout_mode)
del_intf_dict = {intf: del_ports[intf]["speed"] for intf in del_ports}
if del_intf_dict:
for intf in del_intf_dict.keys():
# First, Shut down interface
Expand All @@ -1562,7 +1496,8 @@ def breakout(ctx, interface_name, mode, verbose):
raise click.Abort()

""" Interface Addition Logic """
add_intf_dict = _get_child_interface_speed_dict(interface_name, target_brkout_mode, lane_len)
add_ports = parse_platform_json_file(BREAKOUT_CFG_FILE, interface_name, target_brkout_mode=target_brkout_mode)
add_intf_dict = {intf: add_ports[intf]["speed"] for intf in add_ports}
if add_intf_dict:
click.echo("Ports to be added : \n {}".format(json.dumps(add_intf_dict, indent=4)))
else:
Expand All @@ -1581,11 +1516,10 @@ def breakout(ctx, interface_name, mode, verbose):

click.secho("\nFinal list of ports to be deleted : \n {} \nFinal list of ports to be added : \n {}".format(json.dumps(del_intf_dict, indent=4), json.dumps(add_intf_dict, indent=4), fg='green', blink=True))
if len(add_intf_dict.keys()) != 0:
ports = parse_platform_json_file(BREAKOUT_CFG_FILE, interface_name, target_brkout_mode)
port_dict = {}
for intf in add_intf_dict:
if intf in ports.keys():
port_dict[intf] = ports[intf]
if intf in add_ports.keys():
port_dict[intf] = add_ports[intf]

with open('new_port_config.json', 'w') as f: # writing JSON object
json.dump(port_dict, f, indent=4)
Expand Down