diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.h new file mode 100644 index 000000000..347380a2c --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */ + +#ifndef __MLX5_EN_ACCEL_MACSEC_H__ +#define __MLX5_EN_ACCEL_MACSEC_H__ + +#ifdef CONFIG_MLX5_EN_MACSEC + +#include <linux/mlx5/driver.h> +#include <net/macsec.h> +#include <net/dst_metadata.h> + +/* Bit31 - 30: MACsec marker, Bit15-0: MACsec id */ +#define MLX5_MACEC_RX_FS_ID_MAX USHRT_MAX /* Must be power of two */ +#define MLX5_MACSEC_RX_FS_ID_MASK MLX5_MACEC_RX_FS_ID_MAX +#define MLX5_MACSEC_METADATA_MARKER(metadata) ((((metadata) >> 30) & 0x3) == 0x1) +#define MLX5_MACSEC_RX_METADAT_HANDLE(metadata) ((metadata) & MLX5_MACSEC_RX_FS_ID_MASK) + +struct mlx5e_priv; +struct mlx5e_macsec; + +struct mlx5e_macsec_stats { + u64 macsec_rx_pkts; + u64 macsec_rx_bytes; + u64 macsec_rx_pkts_drop; + u64 macsec_rx_bytes_drop; + u64 macsec_tx_pkts; + u64 macsec_tx_bytes; + u64 macsec_tx_pkts_drop; + u64 macsec_tx_bytes_drop; +}; + +void mlx5e_macsec_build_netdev(struct mlx5e_priv *priv); +int mlx5e_macsec_init(struct mlx5e_priv *priv); +void mlx5e_macsec_cleanup(struct mlx5e_priv *priv); +bool mlx5e_macsec_handle_tx_skb(struct mlx5e_macsec *macsec, struct sk_buff *skb); +void mlx5e_macsec_tx_build_eseg(struct mlx5e_macsec *macsec, + struct sk_buff *skb, + struct mlx5_wqe_eth_seg *eseg); + +static inline bool mlx5e_macsec_skb_is_offload(struct sk_buff *skb) +{ + struct metadata_dst *md_dst = skb_metadata_dst(skb); + + return md_dst && (md_dst->type == METADATA_MACSEC); +} + +static inline bool mlx5e_macsec_is_rx_flow(struct mlx5_cqe64 *cqe) +{ + return MLX5_MACSEC_METADATA_MARKER(be32_to_cpu(cqe->ft_metadata)); +} + +void mlx5e_macsec_offload_handle_rx_skb(struct net_device *netdev, struct sk_buff *skb, + struct mlx5_cqe64 *cqe); +bool mlx5e_is_macsec_device(const struct mlx5_core_dev *mdev); +void mlx5e_macsec_get_stats_fill(struct mlx5e_macsec *macsec, void *macsec_stats); +struct mlx5e_macsec_stats *mlx5e_macsec_get_stats(struct mlx5e_macsec *macsec); + +#else + +static inline void mlx5e_macsec_build_netdev(struct mlx5e_priv *priv) {} +static inline int mlx5e_macsec_init(struct mlx5e_priv *priv) { return 0; } +static inline void mlx5e_macsec_cleanup(struct mlx5e_priv *priv) {} +static inline bool mlx5e_macsec_skb_is_offload(struct sk_buff *skb) { return false; } +static inline bool mlx5e_macsec_is_rx_flow(struct mlx5_cqe64 *cqe) { return false; } +static inline void mlx5e_macsec_offload_handle_rx_skb(struct net_device *netdev, + struct sk_buff *skb, + struct mlx5_cqe64 *cqe) +{} +static inline bool mlx5e_is_macsec_device(const struct mlx5_core_dev *mdev) { return false; } +#endif /* CONFIG_MLX5_EN_MACSEC */ + +#endif /* __MLX5_ACCEL_EN_MACSEC_H__ */ |