From 31169fa8a763e36f6276632139da46b1aca3a7af Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Sat, 28 Aug 2021 17:42:33 +0200 Subject: vyos.ifconfig: T3619: only set offloading options if supported by NIC In the past we always told ethtool to change the offloading settings, even if this was not supported by the underlaying driver. This commit will only change the offloading options if they differ from the current state of the NIC and only if it's supported by the NIC. If the NIC does not support setting the offloading options, a message will be displayed for the user: vyos@vyos# set interfaces ethernet eth2 offload gro vyos@vyos# commit [ interfaces ethernet eth2 ] Adapter does not support changing large-receive-offload settings! --- python/vyos/ifconfig/ethernet.py | 81 +++++++++++++++++++++++++++++++++------- 1 file changed, 67 insertions(+), 14 deletions(-) diff --git a/python/vyos/ifconfig/ethernet.py b/python/vyos/ifconfig/ethernet.py index 07b31a12a..fbff789eb 100644 --- a/python/vyos/ifconfig/ethernet.py +++ b/python/vyos/ifconfig/ethernet.py @@ -16,6 +16,7 @@ import os import re +from vyos.ethtool import Ethtool from vyos.ifconfig.interface import Interface from vyos.util import run from vyos.util import dict_search @@ -41,7 +42,7 @@ class EthernetIf(Interface): @staticmethod def feature(ifname, option, value): - run(f'ethtool -K {ifname} {option} {value}','ifconfig') + run(f'ethtool -K {ifname} {option} {value}') return False _command_set = {**Interface._command_set, **{ @@ -84,6 +85,10 @@ class EthernetIf(Interface): }, }} + def __init__(self, ifname, **kargs): + super().__init__(ifname, **kargs) + self.ethtool = Ethtool(ifname) + def get_driver_name(self): """ Return the driver name used by NIC. Some NICs don't support all @@ -228,8 +233,16 @@ class EthernetIf(Interface): >>> i.set_gro(True) """ if not isinstance(state, bool): - raise ValueError("Value out of range") - return self.set_interface('gro', 'on' if state else 'off') + raise ValueError('Value out of range') + + enabled, fixed = self.ethtool.get_generic_receive_offload() + if not fixed: + enabled = 'on' if enabled else 'off' + if enabled != state: + return self.set_interface('gro', 'on' if state else 'off') + + print('Adapter does not support changing generic-receive-offload settings!') + return False def set_gso(self, state): """ @@ -240,8 +253,16 @@ class EthernetIf(Interface): >>> i.set_gso(True) """ if not isinstance(state, bool): - raise ValueError("Value out of range") - return self.set_interface('gso', 'on' if state else 'off') + raise ValueError('Value out of range') + + enabled, fixed = self.ethtool.get_generic_segmentation_offload() + if not fixed: + enabled = 'on' if enabled else 'off' + if enabled != state: + return self.set_interface('gro', 'on' if state else 'off') + + print('Adapter does not support changing generic-segmentation-offload settings!') + return False def set_lro(self, state): """ @@ -252,12 +273,20 @@ class EthernetIf(Interface): >>> i.set_lro(True) """ if not isinstance(state, bool): - raise ValueError("Value out of range") - return self.set_interface('lro', 'on' if state else 'off') + raise ValueError('Value out of range') + + enabled, fixed = self.ethtool.get_large_receive_offload() + if not fixed: + enabled = 'on' if enabled else 'off' + if enabled != state: + return self.set_interface('gro', 'on' if state else 'off') + + print('Adapter does not support changing large-receive-offload settings!') + return False def set_rps(self, state): if not isinstance(state, bool): - raise ValueError("Value out of range") + raise ValueError('Value out of range') rps_cpus = '0' if state: @@ -282,8 +311,16 @@ class EthernetIf(Interface): >>> i.set_sg(True) """ if not isinstance(state, bool): - raise ValueError("Value out of range") - return self.set_interface('sg', 'on' if state else 'off') + raise ValueError('Value out of range') + + enabled, fixed = self.ethtool.get_scatter_gather() + if not fixed: + enabled = 'on' if enabled else 'off' + if enabled != state: + return self.set_interface('gro', 'on' if state else 'off') + + print('Adapter does not support changing scatter-gather settings!') + return False def set_tso(self, state): """ @@ -295,8 +332,16 @@ class EthernetIf(Interface): >>> i.set_tso(False) """ if not isinstance(state, bool): - raise ValueError("Value out of range") - return self.set_interface('tso', 'on' if state else 'off') + raise ValueError('Value out of range') + + enabled, fixed = self.ethtool.get_tcp_segmentation_offload() + if not fixed: + enabled = 'on' if enabled else 'off' + if enabled != state: + return self.set_interface('gro', 'on' if state else 'off') + + print('Adapter does not support changing tcp-segmentation-offload settings!') + return False def set_ufo(self, state): """ @@ -308,8 +353,16 @@ class EthernetIf(Interface): >>> i.set_udp_offload(True) """ if not isinstance(state, bool): - raise ValueError("Value out of range") - return self.set_interface('ufo', 'on' if state else 'off') + raise ValueError('Value out of range') + + enabled, fixed = self.ethtool.get_udp_fragmentation_offload() + if not fixed: + enabled = 'on' if enabled else 'off' + if enabled != state: + return self.set_interface('gro', 'on' if state else 'off') + + print('Adapter does not support changing udp-fragmentation-offload settings!') + return False def set_ring_buffer(self, b_type, b_size): """ -- cgit v1.2.3