drivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c

Extension

.c

Size

9875 bytes

Lines

388

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.
• 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/bits.h
• linux/delay.h
• linux/dev_printk.h
• linux/io.h
• linux/iopoll.h
• linux/module.h
• linux/pci.h
• linux/slab.h
• linux/stmmac.h
• dwmac4.h
• stmmac.h
• stmmac_libpci.h

Detected Declarations

• struct motorcomm_efuse_patch
• struct dwmac_motorcomm_priv
• function motorcomm_efuse_read_byte
• function motorcomm_efuse_read_patch
• function motorcomm_efuse_get_patch_value
• function motorcomm_efuse_read_mac
• function motorcomm_deassert_mdio_phy_reset
• function motorcomm_reset
• function motorcomm_init
• function motorcomm_resume
• function motorcomm_default_plat_data
• function motorcomm_free_irq
• function motorcomm_setup_irq
• function motorcomm_probe
• function motorcomm_remove

Annotated Snippet

static struct pci_driver dwmac_motorcomm_pci_driver = {
	.name = DRIVER_NAME,
	.id_table = dwmac_motorcomm_pci_id_table,
	.probe = motorcomm_probe,
	.remove = motorcomm_remove,
	.driver = {
		.pm = &stmmac_simple_pm_ops,
	},
};

module_pci_driver(dwmac_motorcomm_pci_driver);

MODULE_DESCRIPTION("DWMAC glue driver for Motorcomm PCI Ethernet controllers");
MODULE_AUTHOR("Yao Zi <me@ziyao.cc>");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/bits.h`, `linux/delay.h`, `linux/dev_printk.h`, `linux/io.h`, `linux/iopoll.h`, `linux/module.h`, `linux/pci.h`, `linux/slab.h`.
• Detected declarations: `struct motorcomm_efuse_patch`, `struct dwmac_motorcomm_priv`, `function motorcomm_efuse_read_byte`, `function motorcomm_efuse_read_patch`, `function motorcomm_efuse_get_patch_value`, `function motorcomm_efuse_read_mac`, `function motorcomm_deassert_mdio_phy_reset`, `function motorcomm_reset`, `function motorcomm_init`, `function motorcomm_resume`.
• Atlas domain: Driver Families / drivers/net.
• 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.