From cc742d48579e4f76e5d3230d87e22f71f76f9301 Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Tue, 31 Aug 2021 18:15:47 +0200 Subject: ethernet: T2241: check if interface supports changing speed/duplex settings Not all interface drivers have the ability to change the speed and duplex settings. Known drivers with this limitation are vmxnet3, virtio_net and xen_netfront. If this driver is detected, an error will be presented to the user. --- src/conf_mode/interfaces-ethernet.py | 3 ++- src/migration-scripts/interfaces/20-to-21 | 15 +++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/conf_mode/interfaces-ethernet.py b/src/conf_mode/interfaces-ethernet.py index 27c4a7c38..889f4856f 100755 --- a/src/conf_mode/interfaces-ethernet.py +++ b/src/conf_mode/interfaces-ethernet.py @@ -85,7 +85,8 @@ def verify(ethernet): speed = ethernet['speed'] duplex = ethernet['duplex'] if not ethtool.check_speed_duplex(speed, duplex): - raise ConfigError(f'Adapter does not support speed "{speed}" and duplex "{duplex}"!') + raise ConfigError(f'Adapter does not support changing speed and duplex '\ + f'settings to: {speed}/{duplex}!') if 'ring_buffer' in ethernet: max_rx = ethtool.get_rx_buffer() diff --git a/src/migration-scripts/interfaces/20-to-21 b/src/migration-scripts/interfaces/20-to-21 index 4b0e70d35..bd89dcdb4 100755 --- a/src/migration-scripts/interfaces/20-to-21 +++ b/src/migration-scripts/interfaces/20-to-21 @@ -89,6 +89,21 @@ for ifname in config.list_nodes(base): if config.exists(base + [ifname, 'offload', 'ufo']): config.delete(base + [ifname, 'offload', 'ufo']) + # Also while processing the interface configuration, not all adapters support + # changing the speed and duplex settings. If the desired speed and duplex + # values do not work for the NIC driver, we change them back to the default + # value of "auto" - which will be applied if the CLI node is deleted. + speed_path = base + [ifname, 'speed'] + duplex_path = base + [ifname, 'duplex'] + # speed and duplex must always be set at the same time if not set to "auto" + if config.exists(speed_path) and config.exists(duplex_path): + speed = config.return_value(speed_path) + duplex = config.return_value(duplex_path) + if speed != 'auto' and duplex != 'auto': + if not eth.check_speed_duplex(speed, duplex): + config.delete(speed_path) + config.delete(duplex_path) + try: with open(file_name, 'w') as f: f.write(config.to_string()) -- cgit v1.2.3