d9b0c6fbf7
Drop pycodestyle for code style checking in favor of black. Black is much faster, stable PEP8 compliant code style checker offering also automatic formatting. It aims to be very stable and produce smallest diffs. It's used by many small and big projects. Running checkstyle with black takes a few seconds with a terse output. Thus, test-checkstyle-diff is no longer necessary. Expand scope of checkstyle to all python files in the repo, replacing test-checkstyle with checkstyle-python. Also, fixstyle-python is now available for automatic style formatting. Note: python virtualenv has been consolidated in test/Makefile, test/requirements*.txt which will eventually be moved to a central location. This is required to simply the automated generation of docker executor images in the CI. Type: improvement Change-Id: I022a326603485f58585e879ac0f697fceefbc9c8 Signed-off-by: Klement Sekera <klement.sekera@gmail.com> Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
329 lines
11 KiB
Python
329 lines
11 KiB
Python
# Copyright (c) 2016 Cisco and/or its affiliates.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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"""VPP PCI Utility libraries"""
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import re
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import logging
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from vpplib.VPPUtil import VPPUtil
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DPDK_SCRIPT = "/vpp/vpp-config/scripts/dpdk-devbind.py"
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# PCI Device id regular expresssion
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PCI_DEV_ID_REGEX = "[0-9A-Fa-f]+:[0-9A-Fa-f]+:[0-9A-Fa-f]+.[0-9A-Fa-f]+"
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class VppPCIUtil(object):
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"""
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PCI Utilities
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"""
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@staticmethod
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def _create_device_list(device_string):
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"""
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Returns a list of PCI devices
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:param device_string: The devices string from dpdk_devbind
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:returns: The device list
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:rtype: dictionary
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"""
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devices = {}
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ids = re.findall(PCI_DEV_ID_REGEX, device_string)
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descriptions = re.findall(r"\'([\s\S]*?)\'", device_string)
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unused = re.findall(r"unused=\w+|unused=", device_string)
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for i, j in enumerate(ids):
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device = {"description": descriptions[i]}
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if unused:
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device["unused"] = unused[i].split("=")[1].split(",")
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cmd = "ls /sys/bus/pci/devices/{}/driver/module/drivers".format(ids[i])
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret == 0:
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device["driver"] = stdout.split(":")[1].rstrip("\n")
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cmd = "cat /sys/bus/pci/devices/{}/numa_node".format(ids[i])
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret != 0:
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raise RuntimeError("{} failed {} {}".format(cmd, stderr, stdout))
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numa_node = stdout.rstrip("\n")
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if numa_node == "-1":
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device["numa_node"] = "0"
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else:
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device["numa_node"] = numa_node
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interfaces = []
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device["interfaces"] = []
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cmd = "ls /sys/bus/pci/devices/{}/net".format(ids[i])
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret == 0:
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interfaces = stdout.rstrip("\n").split()
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device["interfaces"] = interfaces
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l2_addrs = []
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for intf in interfaces:
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cmd = "cat /sys/bus/pci/devices/{}/net/{}/address".format(ids[i], intf)
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret != 0:
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raise RuntimeError("{} failed {} {}".format(cmd, stderr, stdout))
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l2_addrs.append(stdout.rstrip("\n"))
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device["l2addr"] = l2_addrs
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devices[ids[i]] = device
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return devices
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def __init__(self, node):
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self._node = node
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self._dpdk_devices = {}
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self._kernel_devices = {}
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self._other_devices = {}
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self._crypto_dpdk_devices = {}
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self._crypto_kernel_devices = {}
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self._crypto_other_devices = {}
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self._link_up_devices = {}
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def get_all_devices(self):
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"""
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Returns a list of all the devices
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"""
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node = self._node
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rootdir = node["rootdir"]
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dpdk_script = rootdir + DPDK_SCRIPT
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cmd = dpdk_script + " --status"
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret != 0:
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raise RuntimeError(
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"{} failed on node {} {}".format(cmd, node["host"], stderr)
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)
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# Get the network devices using the DPDK
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# First get everything after using DPDK
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stda = stdout.split("Network devices using DPDK-compatible driver")[1]
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# Then get everything before using kernel driver
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using_dpdk = stda.split("Network devices using kernel driver")[0]
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self._dpdk_devices = self._create_device_list(using_dpdk)
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# Get the network devices using the kernel
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stda = stdout.split("Network devices using kernel driver")[1]
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using_kernel = stda.split("Other network devices")[0]
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self._kernel_devices = self._create_device_list(using_kernel)
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# Get the other network devices
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stda = stdout.split("Other network devices")[1]
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other = stda.split("Crypto devices using DPDK-compatible driver")[0]
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self._other_devices = self._create_device_list(other)
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# Get the crypto devices using the DPDK
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stda = stdout.split("Crypto devices using DPDK-compatible driver")[1]
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crypto_using_dpdk = stda.split("Crypto devices using kernel driver")[0]
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self._crypto_dpdk_devices = self._create_device_list(crypto_using_dpdk)
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# Get the network devices using the kernel
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stda = stdout.split("Crypto devices using kernel driver")[1]
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crypto_using_kernel = stda.split("Other crypto devices")[0]
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self._crypto_kernel_devices = self._create_device_list(crypto_using_kernel)
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# Get the other network devices
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crypto_other = stdout.split("Other crypto devices")[1]
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self._crypto_other_devices = self._create_device_list(crypto_other)
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# Get the devices used by the kernel
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for devk in self._kernel_devices.items():
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dvid = devk[0]
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device = devk[1]
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for i in device["interfaces"]:
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cmd = "ip addr show " + i
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret != 0:
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raise RuntimeError(
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"{} failed on node {} {}".format(cmd, node["host"], stderr)
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)
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lstate = re.findall(r"state \w+", stdout)[0].split(" ")[1]
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# Take care of the links that are UP
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if lstate == "UP":
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device["linkup"] = True
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self._link_up_devices[dvid] = device
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for devl in self._link_up_devices.items():
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dvid = devl[0]
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del self._kernel_devices[dvid]
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def get_dpdk_devices(self):
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"""
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Returns a list the dpdk devices
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"""
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return self._dpdk_devices
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def get_kernel_devices(self):
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"""
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Returns a list the kernel devices
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"""
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return self._kernel_devices
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def get_other_devices(self):
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"""
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Returns a list the other devices
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"""
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return self._other_devices
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def get_crypto_dpdk_devices(self):
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"""
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Returns a list the crypto dpdk devices
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"""
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return self._crypto_dpdk_devices
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def get_crypto_kernel_devices(self):
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"""
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Returns a list the crypto kernel devices
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"""
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return self._crypto_kernel_devices
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def get_crypto_other_devices(self):
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"""
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Returns a list the crypto other devices
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"""
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return self._crypto_other_devices
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def get_link_up_devices(self):
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"""
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Returns a list the link up devices
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"""
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return self._link_up_devices
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@staticmethod
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def vpp_create_interface(interfaces, device_id, device):
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"""
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Create an interface using the device is and device
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"""
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name = "port" + str(len(interfaces))
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interfaces[name] = {}
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interfaces[name]["pci_address"] = device_id
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interfaces[name]["numa_node"] = device["numa_node"]
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if "l2addr" in device:
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l2_addrs = device["l2addr"]
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for i, j in enumerate(l2_addrs):
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if i > 0:
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mname = "mac_address" + str(i + 1)
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interfaces[name][mname] = l2_addrs[i]
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else:
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interfaces[name]["mac_address"] = l2_addrs[i]
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@staticmethod
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def show_vpp_devices(devices, show_interfaces=True, show_header=True):
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"""
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show the vpp devices specified in the argument
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:param devices: A list of devices
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:param show_interfaces: show the kernel information
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:param show_header: Display the header if true
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:type devices: dict
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:type show_interfaces: bool
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:type show_header: bool
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"""
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if show_interfaces:
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header = "{:15} {:25} {:50}".format(
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"PCI ID", "Kernel Interface(s)", "Description"
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)
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else:
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header = "{:15} {:50}".format("PCI ID", "Description")
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dashseparator = "-" * (len(header) - 2)
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if show_header is True:
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print(header)
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print(dashseparator)
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for dit in devices.items():
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dvid = dit[0]
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device = dit[1]
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if show_interfaces:
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interfaces = device["interfaces"]
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interface = ""
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for i, j in enumerate(interfaces):
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if i > 0:
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interface += "," + interfaces[i]
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else:
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interface = interfaces[i]
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print(
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"{:15} {:25} {:50}".format(dvid, interface, device["description"])
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)
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else:
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print("{:15} {:50}".format(dvid, device["description"]))
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@staticmethod
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def unbind_vpp_device(node, device_id):
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"""
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unbind the device specified
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:param node: Node dictionary with cpuinfo.
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:param device_id: The device id
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:type node: dict
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:type device_id: string
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"""
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rootdir = node["rootdir"]
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dpdk_script = rootdir + DPDK_SCRIPT
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cmd = dpdk_script + " -u " + " " + device_id
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret != 0:
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raise RuntimeError(
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"{} failed on node {} {} {}".format(cmd, node["host"], stdout, stderr)
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)
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@staticmethod
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def bind_vpp_device(node, driver, device_id):
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"""
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bind the device specified
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:param node: Node dictionary with cpuinfo.
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:param driver: The driver
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:param device_id: The device id
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:type node: dict
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:type driver: string
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:type device_id: string
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:returns ret: Command return code
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"""
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rootdir = node["rootdir"]
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dpdk_script = rootdir + DPDK_SCRIPT
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cmd = dpdk_script + " -b " + driver + " " + device_id
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(ret, stdout, stderr) = VPPUtil.exec_command(cmd)
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if ret != 0:
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logging.error(
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"{} failed on node {}".format(cmd, node["host"], stdout, stderr)
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)
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logging.error("{} {}".format(stdout, stderr))
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return ret
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