net/mlx5: Add HW definitions for IPsec packet offload

Add all needed bits to support IPsec packet offload mode.
Reviewed-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

drivers/net/ethernet/mellanox/mlx5/core/lib/aso.h

@@ -71,6 +71,7 @@ enum {
 };
 
 enum {
+	MLX5_ACCESS_ASO_OPC_MOD_IPSEC = 0x0,
 	MLX5_ACCESS_ASO_OPC_MOD_FLOW_METER = 0x2,
 	MLX5_ACCESS_ASO_OPC_MOD_MACSEC = 0x5,
 };

include/linux/mlx5/mlx5_ifc.h

@@ -445,7 +445,10 @@ struct mlx5_ifc_flow_table_prop_layout_bits {
 	u8         max_modify_header_actions[0x8];
 	u8         max_ft_level[0x8];
 
-	u8         reserved_at_40[0x6];
+	u8         reformat_add_esp_trasport[0x1];
+	u8         reserved_at_41[0x2];
+	u8         reformat_del_esp_trasport[0x1];
+	u8         reserved_at_44[0x2];
 	u8         execute_aso[0x1];
 	u8         reserved_at_47[0x19];
 
@@ -638,8 +641,10 @@ struct mlx5_ifc_fte_match_set_misc2_bits {
 	u8         reserved_at_1a0[0x8];
 
 	u8         macsec_syndrome[0x8];
+	u8         ipsec_syndrome[0x8];
+	u8         reserved_at_1b8[0x8];
 
-	u8         reserved_at_1b0[0x50];
+	u8         reserved_at_1c0[0x40];
 };
 
 struct mlx5_ifc_fte_match_set_misc3_bits {
@@ -6384,6 +6389,9 @@ enum mlx5_reformat_ctx_type {
 	MLX5_REFORMAT_TYPE_L2_TO_L2_TUNNEL = 0x2,
 	MLX5_REFORMAT_TYPE_L3_TUNNEL_TO_L2 = 0x3,
 	MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL = 0x4,
+	MLX5_REFORMAT_TYPE_ADD_ESP_TRANSPORT_OVER_IPV4 = 0x5,
+	MLX5_REFORMAT_TYPE_DEL_ESP_TRANSPORT = 0x8,
+	MLX5_REFORMAT_TYPE_ADD_ESP_TRANSPORT_OVER_IPV6 = 0xb,
 	MLX5_REFORMAT_TYPE_INSERT_HDR = 0xf,
 	MLX5_REFORMAT_TYPE_REMOVE_HDR = 0x10,
 	MLX5_REFORMAT_TYPE_ADD_MACSEC = 0x11,
@@ -11563,6 +11571,41 @@ enum {
 	MLX5_IPSEC_OBJECT_ICV_LEN_16B,
 };
 
+enum {
+	MLX5_IPSEC_ASO_REG_C_0_1 = 0x0,
+	MLX5_IPSEC_ASO_REG_C_2_3 = 0x1,
+	MLX5_IPSEC_ASO_REG_C_4_5 = 0x2,
+	MLX5_IPSEC_ASO_REG_C_6_7 = 0x3,
+};
+
+enum {
+	MLX5_IPSEC_ASO_MODE              = 0x0,
+	MLX5_IPSEC_ASO_REPLAY_PROTECTION = 0x1,
+	MLX5_IPSEC_ASO_INC_SN            = 0x2,
+};
+
+struct mlx5_ifc_ipsec_aso_bits {
+	u8         valid[0x1];
+	u8         reserved_at_201[0x1];
+	u8         mode[0x2];
+	u8         window_sz[0x2];
+	u8         soft_lft_arm[0x1];
+	u8         hard_lft_arm[0x1];
+	u8         remove_flow_enable[0x1];
+	u8         esn_event_arm[0x1];
+	u8         reserved_at_20a[0x16];
+
+	u8         remove_flow_pkt_cnt[0x20];
+
+	u8         remove_flow_soft_lft[0x20];
+
+	u8         reserved_at_260[0x80];
+
+	u8         mode_parameter[0x20];
+
+	u8         replay_protection_window[0x100];
+};
+
 struct mlx5_ifc_ipsec_obj_bits {
 	u8         modify_field_select[0x40];
 	u8         full_offload[0x1];
@@ -11584,7 +11627,11 @@ struct mlx5_ifc_ipsec_obj_bits {
 
 	u8         implicit_iv[0x40];
 
-	u8         reserved_at_100[0x700];
+	u8         reserved_at_100[0x8];
+	u8         ipsec_aso_access_pd[0x18];
+	u8         reserved_at_120[0xe0];
+
+	struct mlx5_ifc_ipsec_aso_bits ipsec_aso;
 };
 
 struct mlx5_ifc_create_ipsec_obj_in_bits {