The nova.pci.utils
Module¶
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get_function_by_ifname
(ifname)¶ Given the device name, returns the PCI address of a device and returns True if the address in a physical function.
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get_ifname_by_pci_address
(pci_addr, pf_interface=False)¶ Get the interface name based on a VF’s pci address
The returned interface name is either the parent PF’s or that of the VF itself based on the argument of pf_interface.
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get_pci_address
(domain, bus, slot, func)¶
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get_pci_address_fields
(pci_addr)¶
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get_vf_num_by_pci_address
(pci_addr)¶ Get the VF number based on a VF’s pci address
A VF is associated with an VF number, which ip link command uses to configure it. This number can be obtained from the PCI device filesystem.
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is_physical_function
(domain, bus, slot, function)¶
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parse_address
(address)¶ Returns (domain, bus, slot, function) from PCI address that is stored in PciDevice DB table.
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pci_device_prop_match
(pci_dev, specs)¶ Check if the pci_dev meet spec requirement
Specs is a list of PCI device property requirements. An example of device requirement that the PCI should be either: a) Device with vendor_id as 0x8086 and product_id as 0x8259, or b) Device with vendor_id as 0x10de and product_id as 0x10d8:
- [{“vendor_id”:”8086”, “product_id”:”8259”},
- {“vendor_id”:”10de”, “product_id”:”10d8”}]