drivers/infiniband/hw/ocrdma/ocrdma_main.c

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/hw/ocrdma/ocrdma_main.c

Extension

.c

Size

11618 bytes

Lines

430

Domain

Driver Families

Bucket

drivers/infiniband

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• 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.
• 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/module.h
• linux/idr.h
• rdma/ib_verbs.h
• rdma/ib_user_verbs.h
• rdma/ib_addr.h
• rdma/ib_mad.h
• linux/netdevice.h
• net/addrconf.h
• ocrdma.h
• ocrdma_verbs.h
• ocrdma_ah.h
• be_roce.h
• ocrdma_hw.h
• ocrdma_stats.h
• rdma/ocrdma-abi.h

Detected Declarations

• function ocrdma_link_layer
• function ocrdma_port_immutable
• function get_dev_fw_str
• function hw_rev_show
• function hca_type_show
• function ocrdma_register_device
• function ocrdma_alloc_resources
• function ocrdma_free_resources
• function ocrdma_remove_free
• function ocrdma_remove
• function ocrdma_dispatch_port_active
• function ocrdma_dispatch_port_error
• function ocrdma_shutdown
• function ocrdma_event_handler
• function ocrdma_update_link_state
• function ocrdma_init_module
• function ocrdma_exit_module
• module init ocrdma_init_module

Annotated Snippet

module_init(ocrdma_init_module);
module_exit(ocrdma_exit_module);

Annotation

• Immediate include surface: `linux/module.h`, `linux/idr.h`, `rdma/ib_verbs.h`, `rdma/ib_user_verbs.h`, `rdma/ib_addr.h`, `rdma/ib_mad.h`, `linux/netdevice.h`, `net/addrconf.h`.
• Detected declarations: `function ocrdma_link_layer`, `function ocrdma_port_immutable`, `function get_dev_fw_str`, `function hw_rev_show`, `function hca_type_show`, `function ocrdma_register_device`, `function ocrdma_alloc_resources`, `function ocrdma_free_resources`, `function ocrdma_remove_free`, `function ocrdma_remove`.
• Atlas domain: Driver Families / drivers/infiniband.
• Implementation status: integration 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.