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| author |   Aviad Yehezkel <aviadye@mellanox.com> | 2018-01-18 16:02:17 +0200 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2018-03-07 15:54:36 -0800 |
| commit | cb01008390bb0645d4728c7f8825e32d4b540a30 (patch) | |
| tree | ec990afb3dab495e42606a158c9a5ecdb199fa3a /include | |
| parent | net/mlx5e: Added common function for to_ipsec_sa_entry (diff) | |
| download | linux-dev-cb01008390bb0645d4728c7f8825e32d4b540a30.tar.xz linux-dev-cb01008390bb0645d4728c7f8825e32d4b540a30.zip | |
net/mlx5: IPSec, Add support for ESN
Currently ESN is not supported with IPSec device offload.
This patch adds ESN support to IPsec device offload.
Implementing new xfrm device operation to synchronize offloading device
ESN with xfrm received SN. New QP command to update SA state at the
following:
ESN 1 ESN 2 ESN 3
|-----------*-----------|-----------*-----------|-----------*
^ ^ ^ ^ ^ ^
^ - marks where QP command invoked to update the SA ESN state
machine.
| - marks the start of the ESN scope (0-2^32-1). At this point move SA
ESN overlap bit to zero and increment ESN.
* - marks the middle of the ESN scope (2^31). At this point move SA
ESN overlap bit to one.
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Yossef Efraim <yossefe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mlx5/accel.h | 2 | ||||
| -rw-r--r-- | include/linux/mlx5/mlx5_ifc_fpga.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mlx5/accel.h b/include/linux/mlx5/accel.h index 6c694709b0a2..70e7e5673ce9 100644 --- a/include/linux/mlx5/accel.h +++ b/include/linux/mlx5/accel.h @@ -110,6 +110,8 @@ enum mlx5_accel_ipsec_cap { MLX5_ACCEL_IPSEC_CAP_IPV6 = 1 << 3, MLX5_ACCEL_IPSEC_CAP_LSO = 1 << 4, MLX5_ACCEL_IPSEC_CAP_RX_NO_TRAILER = 1 << 5, + MLX5_ACCEL_IPSEC_CAP_ESN = 1 << 6, + MLX5_ACCEL_IPSEC_CAP_TX_IV_IS_ESN = 1 << 7, }; #ifdef CONFIG_MLX5_ACCEL diff --git a/include/linux/mlx5/mlx5_ifc_fpga.h b/include/linux/mlx5/mlx5_ifc_fpga.h index debcc57de43a..ec052491ba3d 100644 --- a/include/linux/mlx5/mlx5_ifc_fpga.h +++ b/include/linux/mlx5/mlx5_ifc_fpga.h @@ -468,6 +468,8 @@ struct mlx5_ifc_fpga_ipsec_cmd_cap { } __packed; enum mlx5_ifc_fpga_ipsec_sa_flags { + MLX5_FPGA_IPSEC_SA_ESN_EN = BIT(0), + MLX5_FPGA_IPSEC_SA_ESN_OVERLAP = BIT(1), MLX5_FPGA_IPSEC_SA_IPV6 = BIT(2), MLX5_FPGA_IPSEC_SA_DIR_SX = BIT(3), MLX5_FPGA_IPSEC_SA_SPI_EN = BIT(4), |