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#!/usr/libexec/platform-python -s # -*- python -*- # -*- coding: utf-8 -*- # Copyright (C) 2008 Red Hat Inc. # # This application is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; version 2. # # This application 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. from __future__ import unicode_literals, print_function import getopt import ethtool import sys def usage(): print('''Usage: pethtool [OPTIONS] [<interface>] -h|--help Give this help list -c|--show-coalesce Show coalesce options -C|--coalesce Set coalesce options [adaptive-rx on|off] [adaptive-tx on|off] [rx-usecs N] [rx-frames N] [rx-usecs-irq N] [rx-frames-irq N] [tx-usecs N] [tx-frames N] [tx-usecs-irq N] [tx-frames-irq N] [stats-block-usecs N] [pkt-rate-low N] [rx-usecs-low N] [rx-frames-low N] [tx-usecs-low N] [tx-frames-low N] [pkt-rate-high N] [rx-usecs-high N] [rx-frames-high N] [tx-usecs-high N] [tx-frames-high N] [sample-interval N] -g|--show-ring Show ring parameters -G|--set-ring Set ring parameters [rx N] [rx-mini N] [rx-jumbo N] [tx N] -i|--driver Show driver information -k|--show-offload Get protocol offload information -K|--offload Set protocol offload [ tso on|off ]''') tab = '' def printtab(msg): print(tab + msg) all_devices = [] ethtool_coalesce_msgs = ( ('stats-block-usecs', 'stats_block_coalesce_usecs'), ('sample-interval', 'rate_sample_interval'), ('pkt-rate-low', 'pkt_rate_low'), ('pkt-rate-high', 'pkt_rate_high'), ('\n'), ('rx-usecs', 'rx_coalesce_usecs'), ('rx-frames', 'rx_max_coalesced_frames'), ('rx-usecs-irq', 'rx_coalesce_usecs_irq'), ('rx-frames-irq', 'rx_max_coalesced_frames_irq'), ('\n'), ('tx-usecs', 'tx_coalesce_usecs'), ('tx-frames', 'tx_max_coalesced_frames'), ('tx-usecs-irq', 'tx_coalesce_usecs_irq'), ('tx-frames-irq', 'tx_max_coalesced_frames_irq'), ('\n'), ('rx-usecs-low', 'rx_coalesce_usecs_low'), ('rx-frame-low', 'rx_max_coalesced_frames_low'), ('tx-usecs-low', 'tx_coalesce_usecs_low'), ('tx-frame-low', 'tx_max_coalesced_frames_low'), ('\n'), ('rx-usecs-high', 'rx_coalesce_usecs_high'), ('rx-frame-high', 'rx_max_coalesced_frames_high'), ('tx-usecs-high', 'tx_coalesce_usecs_high'), ('tx-frame-high', 'tx_max_coalesced_frames_high'), ) def get_coalesce_dict_entry(ethtool_name): if ethtool_name == 'adaptive-rx': return 'use_adaptive_rx_coalesce' if ethtool_name == 'adaptive-tx': return 'use_adaptive_tx_coalesce' for name in ethtool_coalesce_msgs: if name[0] == ethtool_name: return name[1] return None def show_coalesce(interface, args=None): printtab('Coalesce parameters for %s:' % interface) try: coal = ethtool.get_coalesce(interface) except IOError: printtab(' NOT supported!') return printtab('Adaptive RX: %s TX: %s' % (coal['use_adaptive_rx_coalesce'] and 'on' or 'off', coal['use_adaptive_tx_coalesce'] and 'on' or 'off')) printed = ['use_adaptive_rx_coalesce', 'use_adaptive_tx_coalesce'] for tunable in ethtool_coalesce_msgs: if tunable[0] == '\n': print else: printtab('%s: %s' % (tunable[0], coal[tunable[1]])) printed.append(tunable[1]) coalkeys = coal.keys() if len(coalkeys) != len(printed): print for tunable in coalkeys: if tunable not in printed: printtab('%s %s' % (tunable, coal[tunable])) def set_coalesce(interface, args): try: coal = ethtool.get_coalesce(interface) except IOError: printtab('Interrupt coalescing NOT supported on %s!' % interface) return changed = False args = [a.lower() for a in args] for arg, value in [(args[i], args[i + 1]) for i in range(0, len(args), 2)]: real_arg = get_coalesce_dict_entry(arg) if not real_arg: continue if value == 'on': value = 1 elif value == 'off': value = 0 else: try: value = int(value) except: continue if coal[real_arg] != value: coal[real_arg] = value changed = True if not changed: return ethtool.set_coalesce(interface, coal) def show_offload(interface, args=None): try: sg = ethtool.get_sg(interface) and 'on' or 'off' except IOError: sg = 'not supported' try: tso = ethtool.get_tso(interface) and 'on' or 'off' except IOError: tso = 'not supported' try: ufo = ethtool.get_ufo(interface) and 'on' or 'off' except IOError: ufo = 'not supported' try: gso = ethtool.get_gso(interface) and 'on' or 'off' except IOError: gso = 'not supported' try: gro = ethtool.get_gro(interface) and 'on' or 'off' except IOError: gro = 'not supported' printtab('scatter-gather: %s' % sg) printtab('tcp segmentation offload: %s' % tso) printtab('udp fragmentation offload: %s' % ufo) printtab('generic segmentation offload: %s' % gso) printtab('generic receive offload: %s' % gro) def set_offload(interface, args): cmd, value = [a.lower() for a in args] if cmd == 'tso': value = value == 'on' and 1 or 0 try: ethtool.set_tso(interface, value) except: pass elif cmd == 'gso': value = value == 'on' and 1 or 0 try: ethtool.set_gso(interface, value) except: pass elif cmd == 'gro': value = value == 'on' and 1 or 0 try: ethtool.set_gro(interface, value) except: pass ethtool_ringparam_msgs = ( ('Pre-set maximums', ), ('RX:\t\t', 'rx_max_pending'), ('RX Mini:\t', 'rx_mini_max_pending'), ('RX Jumbo:\t', 'rx_jumbo_max_pending'), ('TX:\t\t', 'tx_max_pending'), ('Current hardware settings', ), ('RX:\t\t', 'rx_pending'), ('RX Mini:\t', 'rx_mini_pending'), ('RX Jumbo:\t', 'rx_jumbo_pending'), ('TX:\t\t', 'tx_pending'), ) def show_ring(interface, args=None): printtab('Ring parameters for %s:' % interface) try: ring = ethtool.get_ringparam(interface) except IOError: printtab(' NOT supported!') return printed = [] for tunable in ethtool_ringparam_msgs: if len(tunable) == 1: printtab('%s:' % tunable[0]) else: printtab('%s %s' % (tunable[0], ring[tunable[1]])) printed.append(tunable[1]) ringkeys = ring.keys() if len(ringkeys) != len(printed): print for tunable in ringkeys: if tunable not in printed: printtab('%s %s' % (tunable, ring[tunable])) ethtool_ringparam_map = { 'rx': 'rx_pending', 'rx-mini': 'rx_mini_pending', 'rx-jumbo': 'rx_jumbo_pending', 'tx': 'tx_pending', } def set_ringparam(interface, args): try: ring = ethtool.get_ringparam(interface) except IOError: printtab('ring parameters NOT supported on %s!' % interface) return changed = False args = [a.lower() for a in args] for arg, value in [(args[i], args[i + 1]) for i in range(0, len(args), 2)]: if arg not in ethtool_ringparam_map: continue try: value = int(value) except: continue real_arg = ethtool_ringparam_map[arg] if ring[real_arg] != value: ring[real_arg] = value changed = True if not changed: return ethtool.set_ringparam(interface, ring) def show_driver(interface, args=None): try: driver = ethtool.get_module(interface) except IOError: driver = 'not implemented' try: bus = ethtool.get_businfo(interface) except IOError: bus = 'not available' printtab('driver: %s' % driver) printtab('bus-info: %s' % bus) def run_cmd(cmd, interface, args): global tab, all_devices active_devices = ethtool.get_active_devices() if not interface: tab = ' ' for interface in all_devices: inactive = ' (not active)' if interface in active_devices: inactive = '' print('%s%s:' % (interface, inactive)) cmd(interface, args) else: cmd(interface, args) def run_cmd_noargs(cmd, args): if args: run_cmd(cmd, args[0], None) else: global all_devices all_devices = ethtool.get_devices() run_cmd(cmd, None, None) def main(): global all_devices try: opts, args = getopt.getopt(sys.argv[1:], 'hcCgGikK', ('help', 'show-coalesce', 'coalesce', 'show-ring', 'set-ring', 'driver', 'show-offload', 'offload')) except getopt.GetoptError as err: usage() print(err) sys.exit(2) if not opts: usage() sys.exit(0) for o, a in opts: if o in ('-h', '--help'): usage() return elif o in ('-c', '--show-coalesce'): run_cmd_noargs(show_coalesce, args) break elif o in ('-i', '--driver'): run_cmd_noargs(show_driver, args) break elif o in ('-k', '--show-offload'): run_cmd_noargs(show_offload, args) break elif o in ('-g', '--show-ring'): run_cmd_noargs(show_ring, args) break elif o in ('-K', '--offload', '-C', '--coalesce', '-G', '--set-ring'): all_devices = ethtool.get_devices() if len(args) < 2: usage() sys.exit(1) if args[0] not in all_devices: interface = None else: interface = args[0] args = args[1:] if o in ('-K', '--offload'): cmd = set_offload elif o in ('-C', '--coalesce'): cmd = set_coalesce elif o in ('-G', '--set-ring'): cmd = set_ringparam run_cmd(cmd, interface, args) break if __name__ == '__main__': main()