916f9da112
Intel Logan Beach NICs have additional fields in the cgu output, resulting in failures when converting it into a dict. Updated the logic for cgu_output_to_dict() to find the start and end of the "input" table. Once the start and end lines of the table are identified, then the other required fields can be located based on the known offset from the table. This also allows any future lines added to the table to handled without requiring additional code changes. Updated the unit tests to cover both the Logan Beach and Westport Channel cgu output formats. Test plan: PASS: Unit tests passing PASS: Build notificationservice-base image and test on both NIC types. Story: 2010270 Task: 46870 Signed-off-by: Cole Walker <cole.walker@windriver.com> Change-Id: Ib6716f38ea3c64a68e7162bb5d4f2154fa399a8c
138 lines
5.1 KiB
Python
138 lines
5.1 KiB
Python
#
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# Copyright (c) 2022 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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import logging
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import os
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import re
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from trackingfunctionsdk.common.helpers import constants
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from trackingfunctionsdk.common.helpers import log_helper
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LOG = logging.getLogger(__name__)
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log_helper.config_logger(LOG)
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class CguHandler:
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def __init__(self, config_file, nmea_serialport=None, pci_addr=None,
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cgu_path=None):
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self.config_file = config_file
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self.nmea_serialport = nmea_serialport
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self.pci_addr = pci_addr
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self.cgu_path = cgu_path
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self.cgu_output_raw = ""
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self.cgu_output_parsed = {}
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def get_gnss_nmea_serialport_from_ts2phc_config(self):
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# Read a tstphc config file and return the ts2phc.nmea_serialport
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nmea_serialport = None
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try:
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with open(self.config_file, 'r') as infile:
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for line in infile:
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if constants.NMEA_SERIALPORT in line:
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nmea_serialport = line.split(' ')[1].strip('\n')
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break
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self.nmea_serialport = nmea_serialport
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return
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except (FileNotFoundError, PermissionError) as err:
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LOG.error(err)
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raise
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def convert_nmea_serialport_to_pci_addr(self, log_file="/logs/kern.log"):
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# Parse the nmea_serialport value into a PCI address so that we can
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# later find the cgu
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# Returns the address or None
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pci_addr = None
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# Get only the ttyGNSS_1800_0 portion of the path
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nmea_serialport = self.nmea_serialport.split('/')[2]
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LOG.debug("Looking for nmea_serialport value: %s" % nmea_serialport)
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with open(log_file, 'r') as file:
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for line in file:
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if nmea_serialport in line:
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# Regex split to make any number of spaces the delimiter
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# Eg.: ... ice 0000:18:00.0: ttyGNSS_1800_0 registered
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# Becomes: 0000:18:00.0
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pci_addr = re.split(' +', line)[7].strip(':')
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LOG.debug("Found with PCI addr: %s" % pci_addr)
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break
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self.pci_addr = pci_addr
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def get_cgu_path_from_pci_addr(self):
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# Search for a cgu file using the given pci address
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cgu_path = "/ice/" + self.pci_addr + "/cgu"
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if os.path.exists(cgu_path):
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LOG.debug("PCI address %s has cgu path %s" %
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(self.pci_addr, cgu_path))
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self.cgu_path = cgu_path
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return
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else:
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LOG.error("Could not find cgu path for PCI address %s" %
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self.pci_addr)
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raise FileNotFoundError
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def read_cgu(self):
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# Read a given cgu path and return the output in a parseable structure
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cgu_output = None
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if os.path.exists(self.cgu_path):
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with open(self.cgu_path, 'r') as infile:
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cgu_output = infile.read()
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self.cgu_output_raw = cgu_output
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def cgu_output_to_dict(self):
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# Take raw cgu output and parse it into a dict
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cgu_output = self.cgu_output_raw.splitlines()
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cgu_dict = {'input': {},
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'EEC DPLL': {
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'Current reference': '',
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'Status': ''
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},
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'PPS DPLL': {
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'Current reference': '',
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'Status': '',
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'Phase offset': ''
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}
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}
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# Get the input state table start and end lines
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# Can vary in length depending on NIC types
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for index, line in enumerate(cgu_output):
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if "input (idx)" in line:
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table_start = index + 2
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if "EEC DPLL:" in line:
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dpll_start = index
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table_end = index - 1
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for line in cgu_output[table_start:table_end]:
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# Build a dict out of the table
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dict_to_insert = {
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re.split(' +', line)[1]: {
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'state': re.split(' +', line)[4],
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'priority': {
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'EEC': re.split(' +', line)[6],
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'PPS': re.split(' +', line)[8]
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}
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}
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}
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cgu_dict['input'].update(dict_to_insert)
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# Add the DPLL data below the table
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# Set the line offsets for each item we want
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eec_current_ref = dpll_start + 1
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eec_status = dpll_start + 2
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pps_current_ref = dpll_start + 5
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pps_status = dpll_start + 6
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pps_phase_offset = dpll_start + 7
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cgu_dict['EEC DPLL']['Current reference'] = \
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re.split('[ \t]+', cgu_output[eec_current_ref])[-1]
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cgu_dict['EEC DPLL']['Status'] = re.split('[ \t]+', cgu_output[eec_status])[-1]
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cgu_dict['PPS DPLL']['Current reference'] = \
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re.split('[ \t]+', cgu_output[pps_current_ref])[-1]
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cgu_dict['PPS DPLL']['Status'] = re.split('[ \t]+', cgu_output[pps_status])[-1]
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cgu_dict['PPS DPLL']['Phase offset'] = \
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re.split('[ \t]+', cgu_output[pps_phase_offset])[-1]
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self.cgu_output_parsed = cgu_dict
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