drivers/infiniband/ulp/srpt/ib_srpt.c

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/ulp/srpt/ib_srpt.c

Extension

.c

Size

108880 bytes

Lines

3988

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/hex.h
• linux/init.h
• linux/slab.h
• linux/err.h
• linux/ctype.h
• linux/kthread.h
• linux/string.h
• linux/delay.h
• linux/atomic.h
• linux/inet.h
• rdma/ib_cache.h
• scsi/scsi_proto.h
• scsi/scsi_tcq.h
• target/target_core_base.h
• target/target_core_fabric.h
• ib_srpt.h

Detected Declarations

• struct srpt_memory_cache_entry
• struct port_and_port_id
• function srpt_set_u64_x
• function srpt_get_u64_x
• function srpt_cache_put
• function srpt_set_ch_state
• function srpt_event_handler
• function srpt_srq_event
• function srpt_qp_event
• function c_list
• function srpt_get_class_port_info
• function srpt_get_iou
• function srpt_get_ioc
• function srpt_get_svc_entries
• function srpt_mgmt_method_get
• function srpt_mad_send_handler
• function srpt_mad_recv_handler
• function srpt_format_guid
• function srpt_refresh_port
• function srpt_unregister_mad_agent
• function srpt_free_ioctx
• function srpt_free_ioctx_ring
• function srpt_set_cmd_state
• function srpt_test_and_set_cmd_state
• function srpt_post_recv
• function srpt_zerolength_write
• function srpt_zerolength_write_done
• function srpt_alloc_rw_ctxs
• function srpt_free_rw_ctxs
• function srpt_get_desc_tbl
• function srpt_init_ch_qp
• function srpt_ch_qp_rtr
• function srpt_ch_qp_rts
• function srpt_ch_qp_err
• function srpt_abort_cmd
• function check_stop_free
• function srpt_build_cmd_rsp
• function srpt_build_tskmgmt_rsp
• function srpt_check_stop_free
• function srpt_handle_cmd
• function srp_tmr_to_tcm
• function srpt_handle_tsk_mgmt
• function srpt_handle_new_iu
• function srpt_recv_done
• function srpt_process_wait_list
• function srpt_get_send_ioctx
• function srpt_create_ch_ib
• function srpt_destroy_ch_ib

Annotated Snippet

module_init(srpt_init_module);
module_exit(srpt_cleanup_module);

Annotation

• Immediate include surface: `linux/module.h`, `linux/hex.h`, `linux/init.h`, `linux/slab.h`, `linux/err.h`, `linux/ctype.h`, `linux/kthread.h`, `linux/string.h`.
• Detected declarations: `struct srpt_memory_cache_entry`, `struct port_and_port_id`, `function srpt_set_u64_x`, `function srpt_get_u64_x`, `function srpt_cache_put`, `function srpt_set_ch_state`, `function srpt_event_handler`, `function srpt_srq_event`, `function srpt_qp_event`, `function c_list`.
• 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.