drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.h

Extension

.h

Size

2290 bytes

Lines

78

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• net/psp/types.h
• en.h

Detected Declarations

• struct mlx5e_psp_stats
• struct mlx5e_psp
• function mlx5_is_psp_device
• function mlx5_accel_psp_fs_init_rx_tables
• function mlx5_accel_psp_fs_cleanup_rx_tables
• function mlx5_accel_psp_fs_cleanup_tx_tables
• function mlx5e_psp_register
• function mlx5e_psp_cleanup

Annotated Snippet

struct mlx5e_psp_stats {
	u64 psp_rx_pkts;
	u64 psp_rx_bytes;
	u64 psp_rx_pkts_auth_fail;
	u64 psp_rx_bytes_auth_fail;
	u64 psp_rx_pkts_frame_err;
	u64 psp_rx_bytes_frame_err;
	u64 psp_rx_pkts_drop;
	u64 psp_rx_bytes_drop;
	u64 psp_tx_pkts;
	u64 psp_tx_bytes;
	u64 psp_tx_pkts_drop;
	u64 psp_tx_bytes_drop;
};

struct mlx5e_psp {
	struct psp_dev *psp;
	struct psp_dev_caps caps;
	struct mlx5e_psp_fs *fs;
	atomic_t tx_key_cnt;
	atomic_t tx_drop;
};

static inline bool mlx5_is_psp_device(struct mlx5_core_dev *mdev)
{
	if (!MLX5_CAP_GEN(mdev, psp))
		return false;

	if (!MLX5_CAP_PSP(mdev, psp_crypto_offload) ||
	    !MLX5_CAP_PSP(mdev, psp_crypto_esp_aes_gcm_128_encrypt) ||
	    !MLX5_CAP_PSP(mdev, psp_crypto_esp_aes_gcm_128_decrypt))
		return false;

	return true;
}

int mlx5_accel_psp_fs_init_rx_tables(struct mlx5e_priv *priv);
void mlx5_accel_psp_fs_cleanup_rx_tables(struct mlx5e_priv *priv);
int mlx5_accel_psp_fs_init_tx_tables(struct mlx5e_priv *priv);
void mlx5_accel_psp_fs_cleanup_tx_tables(struct mlx5e_priv *priv);
void mlx5e_psp_register(struct mlx5e_priv *priv);
void mlx5e_psp_unregister(struct mlx5e_priv *priv);
int mlx5e_psp_init(struct mlx5e_priv *priv);
void mlx5e_psp_cleanup(struct mlx5e_priv *priv);
#else
static inline int mlx5_accel_psp_fs_init_rx_tables(struct mlx5e_priv *priv)
{
	return 0;
}

static inline void mlx5_accel_psp_fs_cleanup_rx_tables(struct mlx5e_priv *priv) { }
static inline int mlx5_accel_psp_fs_init_tx_tables(struct mlx5e_priv *priv)
{
	return 0;
}

static inline void mlx5_accel_psp_fs_cleanup_tx_tables(struct mlx5e_priv *priv) { }
static inline bool mlx5_is_psp_device(struct mlx5_core_dev *mdev)
{
	return false;
}

static inline void mlx5e_psp_register(struct mlx5e_priv *priv) { }
static inline void mlx5e_psp_unregister(struct mlx5e_priv *priv) { }
static inline int mlx5e_psp_init(struct mlx5e_priv *priv) { return 0; }
static inline void mlx5e_psp_cleanup(struct mlx5e_priv *priv) { }
#endif /* CONFIG_MLX5_EN_PSP */
#endif /* __MLX5E_ACCEL_PSP_H__ */

Annotation

• Immediate include surface: `net/psp/types.h`, `en.h`.
• Detected declarations: `struct mlx5e_psp_stats`, `struct mlx5e_psp`, `function mlx5_is_psp_device`, `function mlx5_accel_psp_fs_init_rx_tables`, `function mlx5_accel_psp_fs_cleanup_rx_tables`, `function mlx5_accel_psp_fs_cleanup_tx_tables`, `function mlx5e_psp_register`, `function mlx5e_psp_cleanup`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.