mirror of
https://github.com/openvswitch/ovs
synced 2025-08-23 18:37:36 +00:00
40 lines
1.3 KiB
Python
40 lines
1.3 KiB
Python
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#!/usr/bin/env python3
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# Copyright (c) 2024 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from pathlib import Path
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import os
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import sys
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# The tester might want to select a PCI device, if so, trust it.
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if 'DPDK_PCI_ADDR' in os.environ:
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print(os.environ['DPDK_PCI_ADDR'])
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sys.exit(0)
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for device in sorted(Path('/sys/bus/pci/devices').iterdir()):
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class_path = device / 'class'
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# Only consider Network class devices
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if class_path.read_text().strip() != '0x020000':
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continue
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kmod_path = device / 'driver' / 'module'
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kmod_name = kmod_path.resolve().name
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# Only care about devices bound to vfio_pci or igb_uio.
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if kmod_name not in ['vfio_pci', 'igb_uio']:
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continue
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print(device.resolve().name)
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sys.exit(0)
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sys.exit(1)
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