drivers/vfio/pci/pds/pci_drv.c

File Facts

System

Linux kernel

Corpus path

drivers/vfio/pci/pds/pci_drv.c

Extension

.c

Size

5645 bytes

Lines

194

Domain

Driver Families

Bucket

drivers/vfio

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/pci.h
• linux/types.h
• linux/vfio.h
• linux/pds/pds_common.h
• linux/pds/pds_core_if.h
• linux/pds/pds_adminq.h
• vfio_dev.h
• pci_drv.h
• cmds.h

Detected Declarations

• function pds_vfio_recovery
• function pds_vfio_pci_notify_handler
• function pds_vfio_pci_register_event_handler
• function pds_vfio_pci_unregister_event_handler
• function pds_vfio_pci_probe
• function pds_vfio_pci_remove
• function pds_vfio_pci_aer_reset_done

Annotated Snippet

static struct pci_driver pds_vfio_pci_driver = {
	.name = KBUILD_MODNAME,
	.id_table = pds_vfio_pci_table,
	.probe = pds_vfio_pci_probe,
	.remove = pds_vfio_pci_remove,
	.err_handler = &pds_vfio_pci_err_handlers,
	.driver_managed_dma = true,
};

module_pci_driver(pds_vfio_pci_driver);

MODULE_IMPORT_NS("IOMMUFD");
MODULE_DESCRIPTION(PDS_VFIO_DRV_DESCRIPTION);
MODULE_AUTHOR("Brett Creeley <brett.creeley@amd.com>");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/pci.h`, `linux/types.h`, `linux/vfio.h`, `linux/pds/pds_common.h`, `linux/pds/pds_core_if.h`, `linux/pds/pds_adminq.h`, `vfio_dev.h`.
• Detected declarations: `function pds_vfio_recovery`, `function pds_vfio_pci_notify_handler`, `function pds_vfio_pci_register_event_handler`, `function pds_vfio_pci_unregister_event_handler`, `function pds_vfio_pci_probe`, `function pds_vfio_pci_remove`, `function pds_vfio_pci_aer_reset_done`.
• Atlas domain: Driver Families / drivers/vfio.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.