#!/usr/bin/env python3
#
# Copyright (c) 2018-2021 NVIDIA CORPORATION & AFFILIATES.
# Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

"""
This utility reset the given SFP module.
"""

import sys
import errno
from python_sdk_api.sx_api import *

# Check if SFP port number is provided
if len(sys.argv) < 2:
    print("SFP module number or LPM is missed.")
    print("Usage: sfpreset.py <SFP module>")
    sys.exit(errno.EINVAL)

# Init SDK API
rc, handle = sx_api_open(None)
if rc != SX_STATUS_SUCCESS:
    print("Failed to open api handle.\nPlease check that SDK is running.")
    sys.exit(errno.EACCES)

# Get SFP module number
sfp_module = int(sys.argv[1]) - 1

rc = sx_mgmt_phy_mod_reset(handle, sfp_module)
assert rc == SX_STATUS_SUCCESS, "sx_mgmt_phy_mod_reset failed, rc = %d" % rc

sx_api_close(handle)