perftune.py: add support for Azure netvsc driver #3190
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mykaul
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@fruch - please test. |
this looks like the code I've suggested, and already tested |
mykaul
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Jan 1, 2026
| def nic_is_vlan_iface(self, nic): | ||
| return self.__nic_is_vlan_iface.get(nic, False) | ||
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| def nic_has_slaves(self, nic): |
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initial commit has this nice comment here, not sure why it was removed, but OK:
# Azure 'netvsc' interface has a symbolic link 'lower_<parent_interface_name>' under
# /sys/class/net/<interface name>.
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cause now it's not specific to Azure netvsc
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From CoPi:
I have fixed the issue by adding support for Azure's netvsc driver in perftune.py.
The changes include:
Added nic_is_netvsc_iface method to NetPerfTuner class to identify interfaces using the hv_netvsc driver.
Updated nic_is_hw_iface to exclude netvsc interfaces, so they are treated as composite interfaces.
Updated nic_is_composite_iface to include netvsc interfaces.
Modified _learn_slaves_one to correctly identify the underlying physical device (VF) for netvsc interfaces by looking for lower* links in sysfs.
Updated the tune method to print the correct interface type when configuring netvsc interfaces.
These changes ensure that perftune.py can correctly identify and tune the underlying physical network device when running in Azure with accelerated networking enabled.
Fixes: #2534