net/mlx5: Add flow-steering commands for FPGA IPSec implementation

In order to add a context to the FPGA, we need to get both the software
transform context (which includes the keys, etc) and the
source/destination IPs (which are included in the steering
rule). Therefore, we register new set of firmware like commands for
the FPGA. Each time a rule is added, the steering core infrastructure
calls the FPGA command layer. If the rule is intended for the FPGA,
it combines the IPs information with the software transformation
context and creates the respective hardware transform.
Afterwards, it calls the standard steering command layer.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/mlx5/accel.h b/include/linux/mlx5/accel.h
index da6de465ea6d..6c694709b0a2 100644
--- a/include/linux/mlx5/accel.h
+++ b/include/linux/mlx5/accel.h
@@ -121,6 +121,8 @@ mlx5_accel_esp_create_xfrm(struct mlx5_core_dev *mdev,
 			   const struct mlx5_accel_esp_xfrm_attrs *attrs,
 			   u32 flags);
 void mlx5_accel_esp_destroy_xfrm(struct mlx5_accel_esp_xfrm *xfrm);
+int mlx5_accel_esp_modify_xfrm(struct mlx5_accel_esp_xfrm *xfrm,
+			       const struct mlx5_accel_esp_xfrm_attrs *attrs);
 
 #else
 
@@ -132,6 +134,9 @@ mlx5_accel_esp_create_xfrm(struct mlx5_core_dev *mdev,
 			   u32 flags) { return ERR_PTR(-EOPNOTSUPP); }
 static inline void
 mlx5_accel_esp_destroy_xfrm(struct mlx5_accel_esp_xfrm *xfrm) {}
+static inline int
+mlx5_accel_esp_modify_xfrm(struct mlx5_accel_esp_xfrm *xfrm,
+			   const struct mlx5_accel_esp_xfrm_attrs *attrs) { return -EOPNOTSUPP; }
 
 #endif
 #endif