drivers/net/ethernet/microchip/lan966x/lan966x_mqprio.c

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/microchip/lan966x/lan966x_mqprio.c

Extension

.c

Size

502 bytes

Lines

29

Domain

Driver Families

Bucket

drivers/net

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• lan966x_main.h

Detected Declarations

• function lan966x_mqprio_add
• function lan966x_mqprio_del

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0+

#include "lan966x_main.h"

int lan966x_mqprio_add(struct lan966x_port *port, u8 num_tc)
{
	u8 i;

	if (num_tc != NUM_PRIO_QUEUES) {
		netdev_err(port->dev, "Only %d traffic classes supported\n",
			   NUM_PRIO_QUEUES);
		return -EINVAL;
	}

	netdev_set_num_tc(port->dev, num_tc);

	for (i = 0; i < num_tc; ++i)
		netdev_set_tc_queue(port->dev, i, 1, i);

	return 0;
}

int lan966x_mqprio_del(struct lan966x_port *port)
{
	netdev_reset_tc(port->dev);

	return 0;
}

Annotation

• Immediate include surface: `lan966x_main.h`.
• Detected declarations: `function lan966x_mqprio_add`, `function lan966x_mqprio_del`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.

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.