drivers/net/ethernet/mellanox/mlx5/core/qos.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/mellanox/mlx5/core/qos.h

Extension

.h

Size

1106 bytes

Lines

31

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

• mlx5_core.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __MLX5_QOS_H
#define __MLX5_QOS_H

#include "mlx5_core.h"

#define MLX5_DEBUG_QOS_MASK BIT(4)

#define qos_err(mdev, fmt, ...) \
	mlx5_core_err(mdev, "QoS: " fmt, ##__VA_ARGS__)
#define qos_warn(mdev, fmt, ...) \
	mlx5_core_warn(mdev, "QoS: " fmt, ##__VA_ARGS__)
#define qos_dbg(mdev, fmt, ...) \
	mlx5_core_dbg_mask(mdev, MLX5_DEBUG_QOS_MASK, "QoS: " fmt, ##__VA_ARGS__)

bool mlx5_qos_is_supported(struct mlx5_core_dev *mdev);
int mlx5_qos_max_leaf_nodes(struct mlx5_core_dev *mdev);

int mlx5_qos_create_leaf_node(struct mlx5_core_dev *mdev, u32 parent_id,
			      u32 bw_share, u32 max_avg_bw, u32 *id);
int mlx5_qos_create_inner_node(struct mlx5_core_dev *mdev, u32 parent_id,
			       u32 bw_share, u32 max_avg_bw, u32 *id);
int mlx5_qos_create_root_node(struct mlx5_core_dev *mdev, u32 *id);
int mlx5_qos_update_node(struct mlx5_core_dev *mdev, u32 bw_share,
			 u32 max_avg_bw, u32 id);
int mlx5_qos_destroy_node(struct mlx5_core_dev *mdev, u32 id);

#endif

Annotation

• Immediate include surface: `mlx5_core.h`.
• 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.