drivers/infiniband/hw/qedr/main.c

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/hw/qedr/main.c

Extension

.c

Size

27781 bytes

Lines

1054

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
• rdma/ib_verbs.h
• rdma/ib_addr.h
• rdma/ib_user_verbs.h
• rdma/iw_cm.h
• rdma/ib_mad.h
• linux/netdevice.h
• linux/iommu.h
• linux/pci.h
• net/addrconf.h
• linux/qed/qed_chain.h
• linux/qed/qed_if.h
• qedr.h
• verbs.h
• rdma/qedr-abi.h
• qedr_iw_cm.h

Detected Declarations

• function qedr_ib_dispatch_event
• function qedr_link_layer
• function qedr_get_dev_fw_str
• function qedr_roce_port_immutable
• function qedr_iw_port_immutable
• function hw_rev_show
• function hca_type_show
• function qedr_iw_register_device
• function qedr_roce_register_device
• function qedr_register_device
• function qedr_alloc_mem_sb
• function qedr_free_mem_sb
• function qedr_free_resources
• function qedr_alloc_resources
• function qedr_pci_set_atomic
• function qedr_irq_handler
• function qedr_sync_free_irqs
• function qedr_req_msix_irqs
• function qedr_setup_irqs
• function qedr_set_device_attr
• function qedr_unaffiliated_event
• function qedr_affiliated_event
• function qedr_init_hw
• function qedr_stop_hw
• function qedr_remove
• function qedr_close
• function qedr_shutdown
• function qedr_open
• function qedr_mac_address_change
• function qedr_notify
• function qedr_init_module
• function qedr_exit_module
• module init qedr_init_module

Annotated Snippet

module_init(qedr_init_module);
module_exit(qedr_exit_module);

Annotation

• Immediate include surface: `linux/module.h`, `rdma/ib_verbs.h`, `rdma/ib_addr.h`, `rdma/ib_user_verbs.h`, `rdma/iw_cm.h`, `rdma/ib_mad.h`, `linux/netdevice.h`, `linux/iommu.h`.
• Detected declarations: `function qedr_ib_dispatch_event`, `function qedr_link_layer`, `function qedr_get_dev_fw_str`, `function qedr_roce_port_immutable`, `function qedr_iw_port_immutable`, `function hw_rev_show`, `function hca_type_show`, `function qedr_iw_register_device`, `function qedr_roce_register_device`, `function qedr_register_device`.
• 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.