diff options
| author | Yossi Kuperman <yossiku@mellanox.com> | 2017-10-22 19:45:45 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-03-07 15:53:18 -0800 |
| commit | 788a8210764ce2977095010931959c87b60c2f51 (patch) | |
| tree | 96d961776baccf9e6d88f6b6283e4fa1d7b307af /drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h | |
| parent | 581fdddee420cebe2cb781cb3c84c82676a86949 (diff) | |
net/mlx5e: IPSec, Add support for ESP trailer removal by hardware
Current hardware decrypts and authenticates incoming ESP packets.
Subsequently, the software extracts the nexthdr field, truncates the
trailer and adjusts csum accordingly.
With this patch and a capable device, the trailer is being removed
by the hardware and the nexthdr field is conveyed via PET. This way
we avoid both the need to access the trailer (cache miss) and to
compute its relative checksum, which significantly improve
the performance.
Experiment shows that trailer removal improves the performance by
2Gbps, (netperf). Both forwarding and host-to-host configurations.
Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h index 56e00baf16cc..bffc3ed0574a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h @@ -77,6 +77,7 @@ struct mlx5e_ipsec_stats { struct mlx5e_ipsec { struct mlx5e_priv *en_priv; DECLARE_HASHTABLE(sadb_rx, MLX5E_IPSEC_SADB_RX_BITS); + bool no_trailer; spinlock_t sadb_rx_lock; /* Protects sadb_rx and halloc */ struct ida halloc; struct mlx5e_ipsec_sw_stats sw_stats; |