net/mlx5: Add support to create match definer

Introduce new APIs to create and destroy flow matcher
for given format id.

Flow match definer object is used for defining the fields and
mask used for the hash calculation. User should mask the desired
fields like done in the match criteria.

This object is assigned to flow group of type hash. In this flow
group type, packets lookup is done based on the hash result.

This patch also adds the required bits to create such flow group.

Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

2 files changed, 253 insertions, 27 deletions

diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 259fcc168340..7a43fec63a35 100644
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -98,6 +98,7 @@ enum {
 
 struct mlx5_pkt_reformat;
 struct mlx5_modify_hdr;
+struct mlx5_flow_definer;
 struct mlx5_flow_table;
 struct mlx5_flow_group;
 struct mlx5_flow_namespace;
@@ -258,6 +259,13 @@ struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 						 void *modify_actions);
 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
 				struct mlx5_modify_hdr *modify_hdr);
+struct mlx5_flow_definer *
+mlx5_create_match_definer(struct mlx5_core_dev *dev,
+			  enum mlx5_flow_namespace_type ns_type, u16 format_id,
+			  u32 *match_mask);
+void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
+				struct mlx5_flow_definer *definer);
+int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
 
 struct mlx5_pkt_reformat_params {
 	int type;
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index db1d9c69c1fa..8f41145bc6ef 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -94,6 +94,7 @@ enum {
 enum {
 	MLX5_OBJ_TYPE_GENEVE_TLV_OPT = 0x000b,
 	MLX5_OBJ_TYPE_VIRTIO_NET_Q = 0x000d,
+	MLX5_OBJ_TYPE_MATCH_DEFINER = 0x0018,
 	MLX5_OBJ_TYPE_MKEY = 0xff01,
 	MLX5_OBJ_TYPE_QP = 0xff02,
 	MLX5_OBJ_TYPE_PSV = 0xff03,
@@ -1731,7 +1732,7 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         flex_parser_id_outer_first_mpls_over_gre[0x4];
 	u8         flex_parser_id_outer_first_mpls_over_udp_label[0x4];
 
-	u8	   reserved_at_6e0[0x10];
+	u8         max_num_match_definer[0x10];
 	u8	   sf_base_id[0x10];
 
 	u8         flex_parser_id_gtpu_dw_2[0x4];
@@ -1746,7 +1747,7 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 
 	u8	   reserved_at_760[0x20];
 	u8	   vhca_tunnel_commands[0x40];
-	u8	   reserved_at_7c0[0x40];
+	u8         match_definer_format_supported[0x40];
 };
 
 struct mlx5_ifc_cmd_hca_cap_2_bits {
@@ -5666,6 +5667,236 @@ struct mlx5_ifc_query_fte_in_bits {
 	u8         reserved_at_120[0xe0];
 };
 
+struct mlx5_ifc_match_definer_format_0_bits {
+	u8         reserved_at_0[0x100];
+
+	u8         metadata_reg_c_0[0x20];
+
+	u8         metadata_reg_c_1[0x20];
+
+	u8         outer_dmac_47_16[0x20];
+
+	u8         outer_dmac_15_0[0x10];
+	u8         outer_ethertype[0x10];
+
+	u8         reserved_at_180[0x1];
+	u8         sx_sniffer[0x1];
+	u8         functional_lb[0x1];
+	u8         outer_ip_frag[0x1];
+	u8         outer_qp_type[0x2];
+	u8         outer_encap_type[0x2];
+	u8         port_number[0x2];
+	u8         outer_l3_type[0x2];
+	u8         outer_l4_type[0x2];
+	u8         outer_first_vlan_type[0x2];
+	u8         outer_first_vlan_prio[0x3];
+	u8         outer_first_vlan_cfi[0x1];
+	u8         outer_first_vlan_vid[0xc];
+
+	u8         outer_l4_type_ext[0x4];
+	u8         reserved_at_1a4[0x2];
+	u8         outer_ipsec_layer[0x2];
+	u8         outer_l2_type[0x2];
+	u8         force_lb[0x1];
+	u8         outer_l2_ok[0x1];
+	u8         outer_l3_ok[0x1];
+	u8         outer_l4_ok[0x1];
+	u8         outer_second_vlan_type[0x2];
+	u8         outer_second_vlan_prio[0x3];
+	u8         outer_second_vlan_cfi[0x1];
+	u8         outer_second_vlan_vid[0xc];
+
+	u8         outer_smac_47_16[0x20];
+
+	u8         outer_smac_15_0[0x10];
+	u8         inner_ipv4_checksum_ok[0x1];
+	u8         inner_l4_checksum_ok[0x1];
+	u8         outer_ipv4_checksum_ok[0x1];
+	u8         outer_l4_checksum_ok[0x1];
+	u8         inner_l3_ok[0x1];
+	u8         inner_l4_ok[0x1];
+	u8         outer_l3_ok_duplicate[0x1];
+	u8         outer_l4_ok_duplicate[0x1];
+	u8         outer_tcp_cwr[0x1];
+	u8         outer_tcp_ece[0x1];
+	u8         outer_tcp_urg[0x1];
+	u8         outer_tcp_ack[0x1];
+	u8         outer_tcp_psh[0x1];
+	u8         outer_tcp_rst[0x1];
+	u8         outer_tcp_syn[0x1];
+	u8         outer_tcp_fin[0x1];
+};
+
+struct mlx5_ifc_match_definer_format_22_bits {
+	u8         reserved_at_0[0x100];
+
+	u8         outer_ip_src_addr[0x20];
+
+	u8         outer_ip_dest_addr[0x20];
+
+	u8         outer_l4_sport[0x10];
+	u8         outer_l4_dport[0x10];
+
+	u8         reserved_at_160[0x1];
+	u8         sx_sniffer[0x1];
+	u8         functional_lb[0x1];
+	u8         outer_ip_frag[0x1];
+	u8         outer_qp_type[0x2];
+	u8         outer_encap_type[0x2];
+	u8         port_number[0x2];
+	u8         outer_l3_type[0x2];
+	u8         outer_l4_type[0x2];
+	u8         outer_first_vlan_type[0x2];
+	u8         outer_first_vlan_prio[0x3];
+	u8         outer_first_vlan_cfi[0x1];
+	u8         outer_first_vlan_vid[0xc];
+
+	u8         metadata_reg_c_0[0x20];
+
+	u8         outer_dmac_47_16[0x20];
+
+	u8         outer_smac_47_16[0x20];
+
+	u8         outer_smac_15_0[0x10];
+	u8         outer_dmac_15_0[0x10];
+};
+
+struct mlx5_ifc_match_definer_format_23_bits {
+	u8         reserved_at_0[0x100];
+
+	u8         inner_ip_src_addr[0x20];
+
+	u8         inner_ip_dest_addr[0x20];
+
+	u8         inner_l4_sport[0x10];
+	u8         inner_l4_dport[0x10];
+
+	u8         reserved_at_160[0x1];
+	u8         sx_sniffer[0x1];
+	u8         functional_lb[0x1];
+	u8         inner_ip_frag[0x1];
+	u8         inner_qp_type[0x2];
+	u8         inner_encap_type[0x2];
+	u8         port_number[0x2];
+	u8         inner_l3_type[0x2];
+	u8         inner_l4_type[0x2];
+	u8         inner_first_vlan_type[0x2];
+	u8         inner_first_vlan_prio[0x3];
+	u8         inner_first_vlan_cfi[0x1];
+	u8         inner_first_vlan_vid[0xc];
+
+	u8         tunnel_header_0[0x20];
+
+	u8         inner_dmac_47_16[0x20];
+
+	u8         inner_smac_47_16[0x20];
+
+	u8         inner_smac_15_0[0x10];
+	u8         inner_dmac_15_0[0x10];
+};
+
+struct mlx5_ifc_match_definer_format_29_bits {
+	u8         reserved_at_0[0xc0];
+
+	u8         outer_ip_dest_addr[0x80];
+
+	u8         outer_ip_src_addr[0x80];
+
+	u8         outer_l4_sport[0x10];
+	u8         outer_l4_dport[0x10];
+
+	u8         reserved_at_1e0[0x20];
+};
+
+struct mlx5_ifc_match_definer_format_30_bits {
+	u8         reserved_at_0[0xa0];
+
+	u8         outer_ip_dest_addr[0x80];
+
+	u8         outer_ip_src_addr[0x80];
+
+	u8         outer_dmac_47_16[0x20];
+
+	u8         outer_smac_47_16[0x20];
+
+	u8         outer_smac_15_0[0x10];
+	u8         outer_dmac_15_0[0x10];
+};
+
+struct mlx5_ifc_match_definer_format_31_bits {
+	u8         reserved_at_0[0xc0];
+
+	u8         inner_ip_dest_addr[0x80];
+
+	u8         inner_ip_src_addr[0x80];
+
+	u8         inner_l4_sport[0x10];
+	u8         inner_l4_dport[0x10];
+
+	u8         reserved_at_1e0[0x20];
+};
+
+struct mlx5_ifc_match_definer_format_32_bits {
+	u8         reserved_at_0[0xa0];
+
+	u8         inner_ip_dest_addr[0x80];
+
+	u8         inner_ip_src_addr[0x80];
+
+	u8         inner_dmac_47_16[0x20];
+
+	u8         inner_smac_47_16[0x20];
+
+	u8         inner_smac_15_0[0x10];
+	u8         inner_dmac_15_0[0x10];
+};
+
+struct mlx5_ifc_match_definer_bits {
+	u8         modify_field_select[0x40];
+
+	u8         reserved_at_40[0x40];
+
+	u8         reserved_at_80[0x10];
+	u8         format_id[0x10];
+
+	u8         reserved_at_a0[0x160];
+
+	u8         match_mask[16][0x20];
+};
+
+struct mlx5_ifc_general_obj_in_cmd_hdr_bits {
+	u8         opcode[0x10];
+	u8         uid[0x10];
+
+	u8         vhca_tunnel_id[0x10];
+	u8         obj_type[0x10];
+
+	u8         obj_id[0x20];
+
+	u8         reserved_at_60[0x20];
+};
+
+struct mlx5_ifc_general_obj_out_cmd_hdr_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         obj_id[0x20];
+
+	u8         reserved_at_60[0x20];
+};
+
+struct mlx5_ifc_create_match_definer_in_bits {
+	struct mlx5_ifc_general_obj_in_cmd_hdr_bits general_obj_in_cmd_hdr;
+
+	struct mlx5_ifc_match_definer_bits obj_context;
+};
+
+struct mlx5_ifc_create_match_definer_out_bits {
+	struct mlx5_ifc_general_obj_out_cmd_hdr_bits general_obj_out_cmd_hdr;
+};
+
 enum {
 	MLX5_QUERY_FLOW_GROUP_OUT_MATCH_CRITERIA_ENABLE_OUTER_HEADERS    = 0x0,
 	MLX5_QUERY_FLOW_GROUP_OUT_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS  = 0x1,
@@ -8140,6 +8371,11 @@ struct mlx5_ifc_create_flow_group_out_bits {
 };
 
 enum {
+	MLX5_CREATE_FLOW_GROUP_IN_GROUP_TYPE_TCAM_SUBTABLE  = 0x0,
+	MLX5_CREATE_FLOW_GROUP_IN_GROUP_TYPE_HASH_SPLIT     = 0x1,
+};
+
+enum {
 	MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_OUTER_HEADERS     = 0x0,
 	MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS   = 0x1,
 	MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_INNER_HEADERS     = 0x2,
@@ -8160,7 +8396,9 @@ struct mlx5_ifc_create_flow_group_in_bits {
 	u8         reserved_at_60[0x20];
 
 	u8         table_type[0x8];
-	u8         reserved_at_88[0x18];
+	u8         reserved_at_88[0x4];
+	u8         group_type[0x4];
+	u8         reserved_at_90[0x10];
 
 	u8         reserved_at_a0[0x8];
 	u8         table_id[0x18];
@@ -8175,7 +8413,10 @@ struct mlx5_ifc_create_flow_group_in_bits {
 
 	u8         end_flow_index[0x20];
 
-	u8         reserved_at_140[0xa0];
+	u8         reserved_at_140[0x10];
+	u8         match_definer_id[0x10];
+
+	u8         reserved_at_160[0x80];
 
 	u8         reserved_at_1e0[0x18];
 	u8         match_criteria_enable[0x8];
@@ -10671,29 +10912,6 @@ struct mlx5_ifc_dealloc_memic_out_bits {
 	u8         reserved_at_40[0x40];
 };
 
-struct mlx5_ifc_general_obj_in_cmd_hdr_bits {
-	u8         opcode[0x10];
-	u8         uid[0x10];
-
-	u8         vhca_tunnel_id[0x10];
-	u8         obj_type[0x10];
-
-	u8         obj_id[0x20];
-
-	u8         reserved_at_60[0x20];
-};
-
-struct mlx5_ifc_general_obj_out_cmd_hdr_bits {
-	u8         status[0x8];
-	u8         reserved_at_8[0x18];
-
-	u8         syndrome[0x20];
-
-	u8         obj_id[0x20];
-
-	u8         reserved_at_60[0x20];
-};
-
 struct mlx5_ifc_umem_bits {
 	u8         reserved_at_0[0x80];