From 5ee89f46096626ca8aac37da9237635e3d17766a Mon Sep 17 00:00:00 2001
From: Christian Breunig <christian@breunig.cc>
Date: Sun, 3 Mar 2024 20:24:46 +0100
Subject: vyos.ethtool: T6083: use JSON input data for ethernet interface
flow-control settings
---
python/vyos/ethtool.py | 21 +++++++-----------
smoketest/scripts/cli/test_interfaces_ethernet.py | 27 +++++++++++++++++++++++
2 files changed, 35 insertions(+), 13 deletions(-)
diff --git a/python/vyos/ethtool.py b/python/vyos/ethtool.py
index ccbb97ad4..473c98d0c 100644
--- a/python/vyos/ethtool.py
+++ b/python/vyos/ethtool.py
@@ -62,8 +62,7 @@ class Ethtool:
_driver_name = None
_auto_negotiation = False
_auto_negotiation_supported = None
- _flow_control = False
- _flow_control_enabled = None
+ _flow_control = None
_eee = False
_eee_enabled = None
@@ -115,12 +114,9 @@ class Ethtool:
# Get current flow control settings, but this is not supported by
# all NICs (e.g. vmxnet3 does not support is)
- out, _ = popen(f'ethtool --show-pause {ifname}')
- if len(out.splitlines()) > 1:
- self._flow_control = True
- # read current flow control setting, this returns:
- # ['Autonegotiate:', 'on']
- self._flow_control_enabled = out.splitlines()[1].split()[-1]
+ out, err = popen(f'ethtool --json --show-pause {ifname}')
+ if not bool(err):
+ self._flow_control = loads(out)
# Get current Energy Efficient Ethernet (EEE) settings, but this is
# not supported by all NICs (e.g. vmxnet3 does not support is)
@@ -207,15 +203,14 @@ class Ethtool:
def check_flow_control(self):
""" Check if the NIC supports flow-control """
- if self.get_driver_name() in _drivers_without_speed_duplex_flow:
- return False
- return self._flow_control
+ return bool(self._flow_control)
def get_flow_control(self):
- if self._flow_control_enabled == None:
+ if self._flow_control == None:
raise ValueError('Interface does not support changing '\
'flow-control settings!')
- return self._flow_control_enabled
+
+ return 'on' if bool(self._flow_control[0]['autonegotiate']) else 'off'
def check_eee(self):
""" Check if the NIC supports eee """
diff --git a/smoketest/scripts/cli/test_interfaces_ethernet.py b/smoketest/scripts/cli/test_interfaces_ethernet.py
index 9bf6a1a61..8f387b23d 100755
--- a/smoketest/scripts/cli/test_interfaces_ethernet.py
+++ b/smoketest/scripts/cli/test_interfaces_ethernet.py
@@ -31,6 +31,7 @@ from vyos.ifconfig import Section
from vyos.pki import CERT_BEGIN
from vyos.utils.process import cmd
from vyos.utils.process import process_named_running
+from vyos.utils.process import popen
from vyos.utils.file import read_file
from vyos.utils.network import is_ipv6_link_local
@@ -304,6 +305,8 @@ class EthernetInterfaceTest(BasicInterfaceTest.TestCase):
def test_ethtool_ring_buffer(self):
for interface in self._interfaces:
+ # We do not use vyos.ethtool here to not have any chance
+ # for invalid testcases. Re-gain data by hand
tmp = cmd(f'sudo ethtool --json --show-ring {interface}')
tmp = loads(tmp)
max_rx = str(tmp[0]['rx-max'])
@@ -327,5 +330,29 @@ class EthernetInterfaceTest(BasicInterfaceTest.TestCase):
self.assertEqual(max_rx, rx)
self.assertEqual(max_tx, tx)
+ def test_ethtool_flow_control(self):
+ for interface in self._interfaces:
+ # Disable flow-control
+ self.cli_set(self._base_path + [interface, 'disable-flow-control'])
+ # Check current flow-control state on ethernet interface
+ out, err = popen(f'sudo ethtool --json --show-pause {interface}')
+ # Flow-control not supported - test if it bails out with a proper
+ # this is a dynamic path where err = 1 on VMware, but err = 0 on
+ # a physical box.
+ if bool(err):
+ with self.assertRaises(ConfigSessionError):
+ self.cli_commit()
+ else:
+ out = loads(out)
+ # Flow control is on
+ self.assertTrue(out[0]['autonegotiate'])
+
+ # commit change on CLI to disable-flow-control and re-test
+ self.cli_commit()
+
+ out, err = popen(f'sudo ethtool --json --show-pause {interface}')
+ out = loads(out)
+ self.assertFalse(out[0]['autonegotiate'])
+
if __name__ == '__main__':
unittest.main(verbosity=2)
--
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