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

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
Extension
.h
Size
6905 bytes
Lines
260
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct mlx5e_accel_tx_state {
#ifdef CONFIG_MLX5_EN_TLS
	struct mlx5e_accel_tx_tls_state tls;
#endif
#ifdef CONFIG_MLX5_EN_IPSEC
	struct mlx5e_accel_tx_ipsec_state ipsec;
#endif
#ifdef CONFIG_MLX5_EN_PSP
	struct mlx5e_accel_tx_psp_state psp_st;
#endif
};

static inline bool mlx5e_accel_tx_begin(struct net_device *dev,
					struct mlx5e_txqsq *sq,
					struct sk_buff *skb,
					struct mlx5e_accel_tx_state *state)
{
#ifdef CONFIG_MLX5_EN_TLS
	/* May send WQEs. */
	if (tls_is_skb_tx_device_offloaded(skb))
		if (unlikely(!mlx5e_ktls_handle_tx_skb(dev, sq, skb,
						       &state->tls)))
			return false;
#endif

#ifdef CONFIG_MLX5_EN_PSP
	if (mlx5e_psp_is_offload(skb, dev)) {
		if (unlikely(!mlx5e_psp_handle_tx_skb(dev, skb, &state->psp_st)))
			return false;
	}
#endif

#ifdef CONFIG_MLX5_EN_IPSEC
	if (test_bit(MLX5E_SQ_STATE_IPSEC, &sq->state) && xfrm_offload(skb)) {
		if (unlikely(!mlx5e_ipsec_handle_tx_skb(dev, skb, &state->ipsec)))
			return false;
	}
#endif

#ifdef CONFIG_MLX5_MACSEC
	if (unlikely(mlx5e_macsec_skb_is_offload(skb))) {
		struct mlx5e_priv *priv = netdev_priv(dev);

		if (unlikely(!mlx5e_macsec_handle_tx_skb(priv->macsec, skb)))
			return false;
	}
#endif

	return true;
}

static inline unsigned int mlx5e_accel_tx_ids_len(struct mlx5e_txqsq *sq,
						  struct sk_buff *skb,
						  struct mlx5e_accel_tx_state *state)
{
#ifdef CONFIG_MLX5_EN_PSP
	if (mlx5e_psp_is_offload_state(&state->psp_st))
		return mlx5e_psp_tx_ids_len(&state->psp_st);
#endif

#ifdef CONFIG_MLX5_EN_IPSEC
	if (test_bit(MLX5E_SQ_STATE_IPSEC, &sq->state))
		return mlx5e_ipsec_tx_ids_len(&state->ipsec);
#endif

	return 0;
}

/* Part of the eseg touched by TX offloads */
#define MLX5E_ACCEL_ESEG_LEN offsetof(struct mlx5_wqe_eth_seg, mss)

static inline void mlx5e_accel_tx_eseg(struct mlx5e_priv *priv,
				       struct sk_buff *skb,
				       struct mlx5e_accel_tx_state *accel,
				       struct mlx5_wqe_eth_seg *eseg, u16 ihs)
{
#ifdef CONFIG_MLX5_EN_PSP
	if (mlx5e_psp_is_offload_state(&accel->psp_st))
		mlx5e_psp_tx_build_eseg(priv, skb, &accel->psp_st, eseg);
#endif

#ifdef CONFIG_MLX5_EN_IPSEC
	if (xfrm_offload(skb))
		mlx5e_ipsec_tx_build_eseg(priv, skb, eseg);
#endif

#ifdef CONFIG_MLX5_MACSEC
	if (unlikely(mlx5e_macsec_skb_is_offload(skb)))
		mlx5e_macsec_tx_build_eseg(priv->macsec, skb, eseg);
#endif

Annotation

Implementation Notes