drivers/net/can/sja1000/plx_pci.c

File Facts

System

Linux kernel

Corpus path

drivers/net/can/sja1000/plx_pci.c

Extension

.c

Size

21139 bytes

Lines

721

Domain

Driver Families

Bucket

drivers/net

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.
• 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/kernel.h
• linux/module.h
• linux/interrupt.h
• linux/netdevice.h
• linux/delay.h
• linux/slab.h
• linux/pci.h
• linux/can/dev.h
• linux/io.h
• sja1000.h

Detected Declarations

• struct plx_pci_card
• struct plx_pci_channel_map
• struct plx_pci_card_info
• function plx_pci_read_reg
• function plx_pci_write_reg
• function plx_pci_check_sja1000
• function plx_pci_reset_common
• function plx9056_pci_reset_common
• function plx_pci_reset_marathon_pci
• function plx_pci_reset_marathon_pcie
• function plx_pci_reset_asem_dual_can_raw
• function plx_pci_del_card
• function plx_pci_add_card

Annotated Snippet

static struct pci_driver plx_pci_driver = {
	.name = DRV_NAME,
	.id_table = plx_pci_tbl,
	.probe = plx_pci_add_card,
	.remove = plx_pci_del_card,
};

module_pci_driver(plx_pci_driver);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/interrupt.h`, `linux/netdevice.h`, `linux/delay.h`, `linux/slab.h`, `linux/pci.h`, `linux/can/dev.h`.
• Detected declarations: `struct plx_pci_card`, `struct plx_pci_channel_map`, `struct plx_pci_card_info`, `function plx_pci_read_reg`, `function plx_pci_write_reg`, `function plx_pci_check_sja1000`, `function plx_pci_reset_common`, `function plx9056_pci_reset_common`, `function plx_pci_reset_marathon_pci`, `function plx_pci_reset_marathon_pcie`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: pattern implementation candidate.

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.