drivers/infiniband/hw/erdma/erdma_main.c

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/hw/erdma/erdma_main.c

Extension

.c

Size

16139 bytes

Lines

684

Domain

Driver Families

Bucket

drivers/infiniband

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• net/addrconf.h
• rdma/erdma-abi.h
• erdma.h
• erdma_cm.h
• erdma_verbs.h

Detected Declarations

• function erdma_netdev_event
• function erdma_enum_and_get_netdev
• function erdma_device_register
• function erdma_comm_irq_handler
• function erdma_request_vectors
• function erdma_comm_irq_init
• function erdma_comm_irq_uninit
• function erdma_device_init
• function erdma_device_uninit
• function erdma_hw_reset
• function erdma_wait_hw_init_done
• function erdma_probe_dev
• function erdma_remove_dev
• function erdma_dev_attrs_init
• function erdma_device_config
• function erdma_res_cb_init
• function erdma_res_cb_free
• function erdma_ib_device_add
• function erdma_ib_device_remove
• function erdma_probe
• function erdma_remove
• function erdma_init_module
• function erdma_exit_module
• module init erdma_init_module

Annotated Snippet

static struct pci_driver erdma_pci_driver = {
	.name = DRV_MODULE_NAME,
	.id_table = erdma_pci_tbl,
	.probe = erdma_probe,
	.remove = erdma_remove
};

MODULE_DEVICE_TABLE(pci, erdma_pci_tbl);

static __init int erdma_init_module(void)
{
	int ret;

	ret = erdma_cm_init();
	if (ret)
		return ret;

	ret = pci_register_driver(&erdma_pci_driver);
	if (ret)
		erdma_cm_exit();

	return ret;
}

static void __exit erdma_exit_module(void)
{
	pci_unregister_driver(&erdma_pci_driver);

	erdma_cm_exit();
}

module_init(erdma_init_module);
module_exit(erdma_exit_module);

Annotation

• Immediate include surface: `linux/module.h`, `net/addrconf.h`, `rdma/erdma-abi.h`, `erdma.h`, `erdma_cm.h`, `erdma_verbs.h`.
• Detected declarations: `function erdma_netdev_event`, `function erdma_enum_and_get_netdev`, `function erdma_device_register`, `function erdma_comm_irq_handler`, `function erdma_request_vectors`, `function erdma_comm_irq_init`, `function erdma_comm_irq_uninit`, `function erdma_device_init`, `function erdma_device_uninit`, `function erdma_hw_reset`.
• Atlas domain: Driver Families / drivers/infiniband.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• 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.