drivers/misc/lan966x_pci.c

File Facts

System

Linux kernel

Corpus path

drivers/misc/lan966x_pci.c

Extension

.c

Size

5436 bytes

Lines

216

Domain

Driver Families

Bucket

drivers/misc

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/device.h
• linux/irq.h
• linux/irqdomain.h
• linux/module.h
• linux/of_platform.h
• linux/pci.h
• linux/pci_ids.h
• linux/slab.h

Detected Declarations

• struct pci_dev_intr_ctrl
• struct lan966x_pci
• function pci_dev_irq_domain_map
• function pci_dev_irq_handler
• function pci_dev_remove_intr_ctrl
• function devm_pci_dev_remove_intr_ctrl
• function devm_pci_dev_create_intr_ctrl
• function lan966x_pci_load_overlay
• function lan966x_pci_unload_overlay
• function lan966x_pci_probe
• function lan966x_pci_remove

Annotated Snippet

static struct pci_driver lan966x_pci_driver = {
	.name = "mchp_lan966x_pci",
	.id_table = lan966x_pci_ids,
	.probe = lan966x_pci_probe,
	.remove = lan966x_pci_remove,
};
module_pci_driver(lan966x_pci_driver);

MODULE_AUTHOR("Herve Codina <herve.codina@bootlin.com>");
MODULE_DESCRIPTION("Microchip LAN966x PCI driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/device.h`, `linux/irq.h`, `linux/irqdomain.h`, `linux/module.h`, `linux/of_platform.h`, `linux/pci.h`, `linux/pci_ids.h`, `linux/slab.h`.
• Detected declarations: `struct pci_dev_intr_ctrl`, `struct lan966x_pci`, `function pci_dev_irq_domain_map`, `function pci_dev_irq_handler`, `function pci_dev_remove_intr_ctrl`, `function devm_pci_dev_remove_intr_ctrl`, `function devm_pci_dev_create_intr_ctrl`, `function lan966x_pci_load_overlay`, `function lan966x_pci_unload_overlay`, `function lan966x_pci_probe`.
• Atlas domain: Driver Families / drivers/misc.
• Implementation status: pattern implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.