net/mlx5: Geneve, Add flow table capabilities for Geneve decap with TLV options

Introduce specification for Geneve decap flow with encapsulation options
and allow creation of rules that are matching on Geneve TLV options.
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/fs_core.h

@@ -152,7 +152,7 @@ struct mlx5_ft_underlay_qp {
 	u32 qpn;
 };
 
-#define MLX5_FTE_MATCH_PARAM_RESERVED	reserved_at_800
+#define MLX5_FTE_MATCH_PARAM_RESERVED	reserved_at_a00
 /* Calculate the fte_match_param length and without the reserved length.
  * Make sure the reserved field is the last.
  */

include/linux/mlx5/device.h

@@ -1001,7 +1001,8 @@ enum {
 	MLX5_MATCH_OUTER_HEADERS	= 1 << 0,
 	MLX5_MATCH_MISC_PARAMETERS	= 1 << 1,
 	MLX5_MATCH_INNER_HEADERS	= 1 << 2,
-
+	MLX5_MATCH_MISC_PARAMETERS_2	= 1 << 3,
+	MLX5_MATCH_MISC_PARAMETERS_3	= 1 << 4,
 };
 
 enum {
@@ -1045,6 +1046,7 @@ enum mlx5_mpls_supported_fields {
 };
 
 enum mlx5_flex_parser_protos {
+	MLX5_FLEX_PROTO_GENEVE	      = 1 << 3,
 	MLX5_FLEX_PROTO_CW_MPLS_GRE   = 1 << 4,
 	MLX5_FLEX_PROTO_CW_MPLS_UDP   = 1 << 5,
 };

include/linux/mlx5/mlx5_ifc.h

@@ -86,6 +86,11 @@ enum {
 
 enum {
 	MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM = (1ULL << MLX5_OBJ_TYPE_SW_ICM),
+	MLX5_GENERAL_OBJ_TYPES_CAP_GENEVE_TLV_OPT = (1ULL << 11),
+};
+
+enum {
+	MLX5_OBJ_TYPE_GENEVE_TLV_OPT = 0x000b,
 };
 
 enum {
@@ -339,7 +344,8 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
 	u8         inner_tcp_flags[0x1];
 	u8         reserved_at_37[0x9];
 
-	u8         reserved_at_40[0x5];
+	u8         geneve_tlv_option_0_data[0x1];
+	u8         reserved_at_41[0x4];
 	u8         outer_first_mpls_over_udp[0x4];
 	u8         outer_first_mpls_over_gre[0x4];
 	u8         inner_first_mpls[0x4];
@@ -528,6 +534,12 @@ struct mlx5_ifc_fte_match_set_misc2_bits {
 	u8         reserved_at_1a0[0x60];
 };
 
+struct mlx5_ifc_fte_match_set_misc3_bits {
+	u8         reserved_at_0[0x120];
+	u8         geneve_tlv_option_0_data[0x20];
+	u8         reserved_at_140[0xc0];
+};
+
 struct mlx5_ifc_cmd_pas_bits {
 	u8         pa_h[0x20];
 
@@ -1247,9 +1259,13 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8	   num_of_uars_per_page[0x20];
 
 	u8         flex_parser_protocols[0x20];
-	u8         reserved_at_560[0x20];
 
-	u8         reserved_at_580[0x3c];
+	u8         max_geneve_tlv_options[0x8];
+	u8         reserved_at_568[0x3];
+	u8         max_geneve_tlv_option_data_len[0x5];
+	u8         reserved_at_570[0x10];
+
+	u8         reserved_at_580[0x1c];
 	u8         mini_cqe_resp_stride_index[0x1];
 	u8         cqe_128_always[0x1];
 	u8         cqe_compression_128[0x1];
@@ -1283,7 +1299,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 
 	u8         uctx_cap[0x20];
 
-	u8	   reserved_at_6c0[0x140];
+	u8         reserved_at_6c0[0x4];
+	u8         flex_parser_id_geneve_tlv_option_0[0x4];
+	u8         reserved_at_6c8[0x138];
 };
 
 enum mlx5_flow_destination_type {
@@ -1341,7 +1359,9 @@ struct mlx5_ifc_fte_match_param_bits {
 
 	struct mlx5_ifc_fte_match_set_misc2_bits misc_parameters_2;
 
-	u8         reserved_at_800[0x800];
+	struct mlx5_ifc_fte_match_set_misc3_bits misc_parameters_3;
+
+	u8         reserved_at_a00[0x600];
 };
 
 enum {
@@ -4850,6 +4870,7 @@ enum {
 	MLX5_QUERY_FLOW_GROUP_OUT_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS  = 0x1,
 	MLX5_QUERY_FLOW_GROUP_OUT_MATCH_CRITERIA_ENABLE_INNER_HEADERS    = 0x2,
 	MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_2 = 0x3,
+	MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_3 = 0x4,
 };
 
 struct mlx5_ifc_query_flow_group_out_bits {
@@ -9545,6 +9566,20 @@ struct mlx5_ifc_sw_icm_bits {
 	u8         sw_icm_start_addr[0x40];
 
 	u8         reserved_at_c0[0x140];
+}; 
+
+struct mlx5_ifc_geneve_tlv_option_bits {
+	u8         modify_field_select[0x40];
+
+	u8         reserved_at_40[0x18];
+	u8         geneve_option_fte_index[0x8];
+
+	u8         option_class[0x10];
+	u8         option_type[0x8];
+	u8         reserved_at_78[0x3];
+	u8         option_data_length[0x5];
+
+	u8         reserved_at_80[0x180];
 };
 
 struct mlx5_ifc_create_umem_in_bits {
@@ -9589,6 +9624,11 @@ struct mlx5_ifc_create_sw_icm_in_bits {
 	struct mlx5_ifc_sw_icm_bits		      sw_icm;
 };
 
+struct mlx5_ifc_create_geneve_tlv_option_in_bits {
+	struct mlx5_ifc_general_obj_in_cmd_hdr_bits   hdr;
+	struct mlx5_ifc_geneve_tlv_option_bits        geneve_tlv_opt;
+};
+
 struct mlx5_ifc_mtrc_string_db_param_bits {
 	u8         string_db_base_address[0x20];