diff options
Diffstat (limited to 'src')
| -rwxr-xr-x | src/conf_mode/vpp.py | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/src/conf_mode/vpp.py b/src/conf_mode/vpp.py deleted file mode 100755 index 82c2f236e..000000000 --- a/src/conf_mode/vpp.py +++ /dev/null @@ -1,207 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2023 VyOS maintainers and contributors -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 2 or later as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. - -import os -from psutil import virtual_memory - -from pathlib import Path -from re import search as re_search, MULTILINE as re_M - -from vyos.config import Config -from vyos.configdep import set_dependents, call_dependents -from vyos.configdict import node_changed -from vyos.ifconfig import Section -from vyos.utils.boot import boot_configuration_complete -from vyos.utils.process import call -from vyos.utils.process import rc_cmd -from vyos.utils.system import sysctl_read -from vyos.utils.system import sysctl_apply -from vyos.template import render - -from vyos import ConfigError -from vyos import airbag -from vyos.vpp import VPPControl -from vyos.vpp import HostControl - -airbag.enable() - -service_name = 'vpp' -service_conf = Path(f'/run/vpp/{service_name}.conf') -systemd_override = '/run/systemd/system/vpp.service.d/10-override.conf' - -# Free memory required for VPP -# 2 GB for hugepages + 1 GB for other services -MIN_AVAILABLE_MEMORY: int = 3 * 1024**3 - - -def _get_pci_address_by_interface(iface) -> str: - rc, out = rc_cmd(f'ethtool -i {iface}') - # if ethtool command was successful - if rc == 0 and out: - regex_filter = r'^bus-info: (?P<address>\w+:\w+:\w+\.\w+)$' - re_obj = re_search(regex_filter, out, re_M) - # if bus-info with PCI address found - if re_obj: - address = re_obj.groupdict().get('address', '') - return address - # use VPP - maybe interface already attached to it - vpp_control = VPPControl(attempts=20, interval=500) - pci_addr = vpp_control.get_pci_addr(iface) - if pci_addr: - return pci_addr - # raise error if PCI address was not found - raise ConfigError(f'Cannot find PCI address for interface {iface}') - - -def get_config(config=None): - if config: - conf = config - else: - conf = Config() - - base = ['vpp'] - base_ethernet = ['interfaces', 'ethernet'] - - # find interfaces removed from VPP - removed_ifaces = [] - tmp = node_changed(conf, base + ['interface']) - if tmp: - for removed_iface in tmp: - pci_address: str = _get_pci_address_by_interface(removed_iface) - removed_ifaces.append({ - 'iface_name': removed_iface, - 'iface_pci_addr': pci_address - }) - # add an interface to a list of interfaces that need - # to be reinitialized after the commit - set_dependents('ethernet', conf, removed_iface) - - if not conf.exists(base): - return {'removed_ifaces': removed_ifaces} - - config = conf.get_config_dict(base, key_mangling=('-', '_'), - no_tag_node_value_mangle=True, - get_first_key=True, - with_recursive_defaults=True) - - if 'interface' in config: - for iface, iface_config in config['interface'].items(): - # add an interface to a list of interfaces that need - # to be reinitialized after the commit - set_dependents('ethernet', conf, iface) - - # Get PCI address auto - if iface_config['pci'] == 'auto': - config['interface'][iface]['pci'] = _get_pci_address_by_interface(iface) - - config['other_interfaces'] = conf.get_config_dict(base_ethernet, key_mangling=('-', '_'), - get_first_key=True, no_tag_node_value_mangle=True) - - if removed_ifaces: - config['removed_ifaces'] = removed_ifaces - - return config - - -def verify(config): - # bail out early - looks like removal from running config - if not config or (len(config) == 1 and 'removed_ifaces' in config): - return None - - if 'interface' not in config: - raise ConfigError('"interface" is required but not set!') - - if 'cpu' in config: - if 'corelist_workers' in config['cpu'] and 'main_core' not in config[ - 'cpu']: - raise ConfigError('"cpu main-core" is required but not set!') - - memory_available: int = virtual_memory().available - if memory_available < MIN_AVAILABLE_MEMORY: - raise ConfigError( - 'Not enough free memory to start VPP:\n' - f'available: {round(memory_available / 1024**3, 1)}GB\n' - f'required: {round(MIN_AVAILABLE_MEMORY / 1024**3, 1)}GB') - - -def generate(config): - if not config or (len(config) == 1 and 'removed_ifaces' in config): - # Remove old config and return - service_conf.unlink(missing_ok=True) - return None - - render(service_conf, 'vpp/startup.conf.j2', config) - render(systemd_override, 'vpp/override.conf.j2', config) - - # apply default sysctl values from - # https://github.com/FDio/vpp/blob/v23.06/src/vpp/conf/80-vpp.conf - sysctl_config: dict[str, str] = { - 'vm.nr_hugepages': '1024', - 'vm.max_map_count': '3096', - 'vm.hugetlb_shm_group': '0', - 'kernel.shmmax': '2147483648' - } - # we do not want to reduce `kernel.shmmax` - kernel_shmnax_current: str = sysctl_read('kernel.shmmax') - if int(kernel_shmnax_current) > int(sysctl_config['kernel.shmmax']): - sysctl_config['kernel.shmmax'] = kernel_shmnax_current - - if not sysctl_apply(sysctl_config): - raise ConfigError('Cannot configure sysctl parameters for VPP') - - return None - - -def apply(config): - if not config or (len(config) == 1 and 'removed_ifaces' in config): - call(f'systemctl stop {service_name}.service') - else: - call('systemctl daemon-reload') - call(f'systemctl restart {service_name}.service') - - # Initialize interfaces removed from VPP - for iface in config.get('removed_ifaces', []): - host_control = HostControl() - # rescan PCI to use a proper driver - host_control.pci_rescan(iface['iface_pci_addr']) - # rename to the proper name - iface_new_name: str = host_control.get_eth_name(iface['iface_pci_addr']) - host_control.rename_iface(iface_new_name, iface['iface_name']) - - if 'interface' in config: - # connect to VPP - # must be performed multiple attempts because API is not available - # immediately after the service restart - vpp_control = VPPControl(attempts=20, interval=500) - for iface, _ in config['interface'].items(): - # Create lcp - if iface not in Section.interfaces(): - vpp_control.lcp_pair_add(iface, iface) - - # reinitialize interfaces, but not during the first boot - if boot_configuration_complete(): - call_dependents() - - -if __name__ == '__main__': - try: - c = get_config() - verify(c) - generate(c) - apply(c) - except ConfigError as e: - print(e) - exit(1) |