| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Copyright (c) 2019, Intel Corporation. */ |
| |
| #ifndef _ICE_PROTOCOL_TYPE_H_ |
| #define _ICE_PROTOCOL_TYPE_H_ |
| #define ICE_IPV6_ADDR_LENGTH 16 |
| |
| /* Each recipe can match up to 5 different fields. Fields to match can be meta- |
| * data, values extracted from packet headers, or results from other recipes. |
| * One of the 5 fields is reserved for matching the switch ID. So, up to 4 |
| * recipes can provide intermediate results to another one through chaining, |
| * e.g. recipes 0, 1, 2, and 3 can provide intermediate results to recipe 4. |
| */ |
| #define ICE_NUM_WORDS_RECIPE 4 |
| |
| /* Max recipes that can be chained */ |
| #define ICE_MAX_CHAIN_RECIPE 5 |
| |
| /* 1 word reserved for switch ID from allowed 5 words. |
| * So a recipe can have max 4 words. And you can chain 5 such recipes |
| * together. So maximum words that can be programmed for look up is 5 * 4. |
| */ |
| #define ICE_MAX_CHAIN_WORDS (ICE_NUM_WORDS_RECIPE * ICE_MAX_CHAIN_RECIPE) |
| |
| /* Field vector index corresponding to chaining */ |
| #define ICE_CHAIN_FV_INDEX_START 47 |
| |
| enum ice_protocol_type { |
| ICE_MAC_OFOS = 0, |
| ICE_MAC_IL, |
| ICE_ETYPE_OL, |
| ICE_VLAN_OFOS, |
| ICE_IPV4_OFOS, |
| ICE_IPV4_IL, |
| ICE_IPV6_OFOS, |
| ICE_IPV6_IL, |
| ICE_TCP_IL, |
| ICE_UDP_OF, |
| ICE_UDP_ILOS, |
| ICE_VXLAN, |
| ICE_GENEVE, |
| ICE_NVGRE, |
| ICE_VXLAN_GPE, |
| ICE_SCTP_IL, |
| ICE_PROTOCOL_LAST |
| }; |
| |
| enum ice_sw_tunnel_type { |
| ICE_NON_TUN = 0, |
| ICE_SW_TUN_VXLAN, |
| ICE_SW_TUN_GENEVE, |
| ICE_SW_TUN_NVGRE, |
| ICE_ALL_TUNNELS /* All tunnel types including NVGRE */ |
| }; |
| |
| /* Decoders for ice_prot_id: |
| * - F: First |
| * - I: Inner |
| * - L: Last |
| * - O: Outer |
| * - S: Single |
| */ |
| enum ice_prot_id { |
| ICE_PROT_ID_INVAL = 0, |
| ICE_PROT_MAC_OF_OR_S = 1, |
| ICE_PROT_MAC_IL = 4, |
| ICE_PROT_ETYPE_OL = 9, |
| ICE_PROT_ETYPE_IL = 10, |
| ICE_PROT_IPV4_OF_OR_S = 32, |
| ICE_PROT_IPV4_IL = 33, |
| ICE_PROT_IPV6_OF_OR_S = 40, |
| ICE_PROT_IPV6_IL = 41, |
| ICE_PROT_TCP_IL = 49, |
| ICE_PROT_UDP_OF = 52, |
| ICE_PROT_UDP_IL_OR_S = 53, |
| ICE_PROT_GRE_OF = 64, |
| ICE_PROT_ESP_F = 88, |
| ICE_PROT_ESP_2 = 89, |
| ICE_PROT_SCTP_IL = 96, |
| ICE_PROT_ICMP_IL = 98, |
| ICE_PROT_ICMPV6_IL = 100, |
| ICE_PROT_PPPOE = 103, |
| ICE_PROT_L2TPV3 = 104, |
| ICE_PROT_ARP_OF = 118, |
| ICE_PROT_META_ID = 255, /* when offset == metadata */ |
| ICE_PROT_INVALID = 255 /* when offset == ICE_FV_OFFSET_INVAL */ |
| }; |
| |
| #define ICE_VNI_OFFSET 12 /* offset of VNI from ICE_PROT_UDP_OF */ |
| |
| #define ICE_MAC_OFOS_HW 1 |
| #define ICE_MAC_IL_HW 4 |
| #define ICE_ETYPE_OL_HW 9 |
| #define ICE_VLAN_OF_HW 16 |
| #define ICE_VLAN_OL_HW 17 |
| #define ICE_IPV4_OFOS_HW 32 |
| #define ICE_IPV4_IL_HW 33 |
| #define ICE_IPV6_OFOS_HW 40 |
| #define ICE_IPV6_IL_HW 41 |
| #define ICE_TCP_IL_HW 49 |
| #define ICE_UDP_ILOS_HW 53 |
| #define ICE_GRE_OF_HW 64 |
| |
| #define ICE_UDP_OF_HW 52 /* UDP Tunnels */ |
| #define ICE_META_DATA_ID_HW 255 /* this is used for tunnel type */ |
| |
| #define ICE_MDID_SIZE 2 |
| #define ICE_TUN_FLAG_MDID 21 |
| #define ICE_TUN_FLAG_MDID_OFF (ICE_MDID_SIZE * ICE_TUN_FLAG_MDID) |
| #define ICE_TUN_FLAG_MASK 0xFF |
| |
| #define ICE_TUN_FLAG_FV_IND 2 |
| |
| /* Mapping of software defined protocol ID to hardware defined protocol ID */ |
| struct ice_protocol_entry { |
| enum ice_protocol_type type; |
| u8 protocol_id; |
| }; |
| |
| struct ice_ether_hdr { |
| u8 dst_addr[ETH_ALEN]; |
| u8 src_addr[ETH_ALEN]; |
| }; |
| |
| struct ice_ethtype_hdr { |
| __be16 ethtype_id; |
| }; |
| |
| struct ice_ether_vlan_hdr { |
| u8 dst_addr[ETH_ALEN]; |
| u8 src_addr[ETH_ALEN]; |
| __be32 vlan_id; |
| }; |
| |
| struct ice_vlan_hdr { |
| __be16 type; |
| __be16 vlan; |
| }; |
| |
| struct ice_ipv4_hdr { |
| u8 version; |
| u8 tos; |
| __be16 total_length; |
| __be16 id; |
| __be16 frag_off; |
| u8 time_to_live; |
| u8 protocol; |
| __be16 check; |
| __be32 src_addr; |
| __be32 dst_addr; |
| }; |
| |
| struct ice_ipv6_hdr { |
| __be32 be_ver_tc_flow; |
| __be16 payload_len; |
| u8 next_hdr; |
| u8 hop_limit; |
| u8 src_addr[ICE_IPV6_ADDR_LENGTH]; |
| u8 dst_addr[ICE_IPV6_ADDR_LENGTH]; |
| }; |
| |
| struct ice_sctp_hdr { |
| __be16 src_port; |
| __be16 dst_port; |
| __be32 verification_tag; |
| __be32 check; |
| }; |
| |
| struct ice_l4_hdr { |
| __be16 src_port; |
| __be16 dst_port; |
| __be16 len; |
| __be16 check; |
| }; |
| |
| struct ice_udp_tnl_hdr { |
| __be16 field; |
| __be16 proto_type; |
| __be32 vni; /* only use lower 24-bits */ |
| }; |
| |
| struct ice_nvgre_hdr { |
| __be16 flags; |
| __be16 protocol; |
| __be32 tni_flow; |
| }; |
| |
| union ice_prot_hdr { |
| struct ice_ether_hdr eth_hdr; |
| struct ice_ethtype_hdr ethertype; |
| struct ice_vlan_hdr vlan_hdr; |
| struct ice_ipv4_hdr ipv4_hdr; |
| struct ice_ipv6_hdr ipv6_hdr; |
| struct ice_l4_hdr l4_hdr; |
| struct ice_sctp_hdr sctp_hdr; |
| struct ice_udp_tnl_hdr tnl_hdr; |
| struct ice_nvgre_hdr nvgre_hdr; |
| }; |
| |
| /* This is mapping table entry that maps every word within a given protocol |
| * structure to the real byte offset as per the specification of that |
| * protocol header. |
| * for e.g. dst address is 3 words in ethertype header and corresponding bytes |
| * are 0, 2, 3 in the actual packet header and src address is at 4, 6, 8 |
| */ |
| struct ice_prot_ext_tbl_entry { |
| enum ice_protocol_type prot_type; |
| /* Byte offset into header of given protocol type */ |
| u8 offs[sizeof(union ice_prot_hdr)]; |
| }; |
| |
| /* Extractions to be looked up for a given recipe */ |
| struct ice_prot_lkup_ext { |
| u16 prot_type; |
| u8 n_val_words; |
| /* create a buffer to hold max words per recipe */ |
| u16 field_off[ICE_MAX_CHAIN_WORDS]; |
| u16 field_mask[ICE_MAX_CHAIN_WORDS]; |
| |
| struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS]; |
| |
| /* Indicate field offsets that have field vector indices assigned */ |
| DECLARE_BITMAP(done, ICE_MAX_CHAIN_WORDS); |
| }; |
| |
| struct ice_pref_recipe_group { |
| u8 n_val_pairs; /* Number of valid pairs */ |
| struct ice_fv_word pairs[ICE_NUM_WORDS_RECIPE]; |
| u16 mask[ICE_NUM_WORDS_RECIPE]; |
| }; |
| |
| struct ice_recp_grp_entry { |
| struct list_head l_entry; |
| |
| #define ICE_INVAL_CHAIN_IND 0xFF |
| u16 rid; |
| u8 chain_idx; |
| u16 fv_idx[ICE_NUM_WORDS_RECIPE]; |
| u16 fv_mask[ICE_NUM_WORDS_RECIPE]; |
| struct ice_pref_recipe_group r_group; |
| }; |
| #endif /* _ICE_PROTOCOL_TYPE_H_ */ |