drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c

Extension

.c

Size

11665 bytes

Lines

494

Domain

Driver Families

Bucket

drivers/net

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.
• 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/printk.h
• linux/pci.h
• linux/spinlock.h
• linux/mutex.h
• linux/netdevice.h
• linux/seq_file.h
• linux/workqueue.h
• linux/completion.h
• pcie_priv.h
• bus.h
• shm_ipc.h
• core.h
• debug.h
• util.h
• qtn_hw_ids.h

Detected Declarations

• function qtnf_pcie_control_tx
• function qtnf_pcie_alloc_skb_array
• function qtnf_pcie_bringup_fw_async
• function qtnf_dbg_mps_show
• function qtnf_dbg_msi_show
• function qtnf_dbg_shm_stats
• function qtnf_pcie_fw_boot_done
• function qtnf_tune_pcie_mps
• function qtnf_pcie_init_irq
• function qtnf_pcie_control_rx_callback
• function qtnf_pcie_init_shm_ipc
• function qtnf_pcie_probe
• function qtnf_pcie_free_shm_ipc
• function qtnf_pcie_remove
• function qtnf_pcie_suspend
• function qtnf_pcie_resume

Annotated Snippet

static struct pci_driver qtnf_pcie_drv_data = {
	.name = DRV_NAME,
	.id_table = qtnf_pcie_devid_table,
	.probe = qtnf_pcie_probe,
	.remove = qtnf_pcie_remove,
#ifdef CONFIG_PM_SLEEP
	.driver = {
		.pm = &qtnf_pcie_pm_ops,
	},
#endif
};

module_pci_driver(qtnf_pcie_drv_data)

MODULE_AUTHOR("Quantenna Communications");
MODULE_DESCRIPTION("Quantenna PCIe bus driver for 802.11 wireless LAN.");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/printk.h`, `linux/pci.h`, `linux/spinlock.h`, `linux/mutex.h`, `linux/netdevice.h`, `linux/seq_file.h`, `linux/workqueue.h`.
• Detected declarations: `function qtnf_pcie_control_tx`, `function qtnf_pcie_alloc_skb_array`, `function qtnf_pcie_bringup_fw_async`, `function qtnf_dbg_mps_show`, `function qtnf_dbg_msi_show`, `function qtnf_dbg_shm_stats`, `function qtnf_pcie_fw_boot_done`, `function qtnf_tune_pcie_mps`, `function qtnf_pcie_init_irq`, `function qtnf_pcie_control_rx_callback`.
• Atlas domain: Driver Families / drivers/net.
• 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.