drivers/scsi/hptiop.c

File Facts

System

Linux kernel

Corpus path

drivers/scsi/hptiop.c

Extension

.c

Size

46355 bytes

Lines

1700

Domain

Driver Families

Bucket

drivers/scsi

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
• linux/types.h
• linux/string.h
• linux/kernel.h
• linux/pci.h
• linux/interrupt.h
• linux/errno.h
• linux/delay.h
• linux/timer.h
• linux/spinlock.h
• linux/gfp.h
• linux/uaccess.h
• asm/io.h
• asm/div64.h
• scsi/scsi_cmnd.h
• scsi/scsi_device.h
• scsi/scsi.h
• scsi/scsi_tcq.h
• scsi/scsi_host.h
• hptiop.h

Detected Declarations

• function iop_wait_ready_itl
• function iop_wait_ready_mv
• function iop_wait_ready_mvfrey
• function hptiop_request_callback_itl
• function hptiop_drain_outbound_queue_itl
• function iop_intr_itl
• function mv_outbound_read
• function mv_inbound_write
• function hptiop_request_callback_mv
• function iop_intr_mv
• function hptiop_request_callback_mvfrey
• function iop_intr_mvfrey
• function iop_send_sync_request_itl
• function iop_send_sync_request_mv
• function iop_send_sync_request_mvfrey
• function hptiop_post_msg_itl
• function hptiop_post_msg_mv
• function hptiop_post_msg_mvfrey
• function iop_send_sync_msg
• function iop_get_config_itl
• function iop_get_config_mv
• function iop_get_config_mvfrey
• function iop_set_config_itl
• function iop_set_config_mv
• function iop_set_config_mvfrey
• function hptiop_enable_intr_itl
• function hptiop_enable_intr_mv
• function hptiop_enable_intr_mvfrey
• function hptiop_initialize_iop
• function hptiop_map_pci_bar_itl
• function hptiop_unmap_pci_bar_itl
• function hptiop_map_pci_bar_mv
• function hptiop_map_pci_bar_mvfrey
• function hptiop_unmap_pci_bar_mv
• function hptiop_unmap_pci_bar_mvfrey
• function hptiop_message_callback
• function free_req
• function hptiop_finish_scsi_req
• function hptiop_host_request_callback_itl
• function hptiop_iop_request_callback_itl
• function hptiop_intr
• function hptiop_buildsgl
• function scsi_for_each_sg
• function hptiop_post_req_itl
• function hptiop_post_req_mv
• function hptiop_post_req_mvfrey
• function hptiop_reset_comm_itl
• function hptiop_reset_comm_mv

Annotated Snippet

static struct pci_driver hptiop_pci_driver = {
	.name       = driver_name,
	.id_table   = hptiop_id_table,
	.probe      = hptiop_probe,
	.remove     = hptiop_remove,
	.shutdown   = hptiop_shutdown,
};

static int __init hptiop_module_init(void)
{
	printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
	return pci_register_driver(&hptiop_pci_driver);
}

static void __exit hptiop_module_exit(void)
{
	pci_unregister_driver(&hptiop_pci_driver);
}


module_init(hptiop_module_init);
module_exit(hptiop_module_exit);

MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/types.h`, `linux/string.h`, `linux/kernel.h`, `linux/pci.h`, `linux/interrupt.h`, `linux/errno.h`, `linux/delay.h`.
• Detected declarations: `function iop_wait_ready_itl`, `function iop_wait_ready_mv`, `function iop_wait_ready_mvfrey`, `function hptiop_request_callback_itl`, `function hptiop_drain_outbound_queue_itl`, `function iop_intr_itl`, `function mv_outbound_read`, `function mv_inbound_write`, `function hptiop_request_callback_mv`, `function iop_intr_mv`.
• Atlas domain: Driver Families / drivers/scsi.
• 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.