/* 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 … /* 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. * Therefore, up to 5 recipes can provide intermediate results to another one * through chaining, e.g. recipes 0, 1, 2, 3 and 4 can provide intermediate * results to recipe 5. Note that one of the fields in one of the recipes must * always be reserved for matching the switch ID. */ #define ICE_NUM_WORDS_RECIPE … /* Max recipes that can be chained, not including the last one, which combines * intermediate results. */ #define ICE_MAX_CHAIN_RECIPE … /* Total max recipes in chain recipe (including intermediate results) */ #define ICE_MAX_CHAIN_RECIPE_RES … /* A recipe can have max 5 words, and 5 recipes can be chained together (using * the 6th one, which would contain only result indexes). So maximum words that * can be programmed for lookup is 5 * 5 (not including intermediate results). */ #define ICE_MAX_CHAIN_WORDS … /* Field vector index corresponding to chaining */ #define ICE_CHAIN_FV_INDEX_START … enum ice_protocol_type { … }; enum ice_sw_tunnel_type { … }; /* Decoders for ice_prot_id: * - F: First * - I: Inner * - L: Last * - O: Outer * - S: Single */ enum ice_prot_id { … }; #define ICE_VNI_OFFSET … #define ICE_MAC_OFOS_HW … #define ICE_MAC_IL_HW … #define ICE_ETYPE_OL_HW … #define ICE_ETYPE_IL_HW … #define ICE_VLAN_OF_HW … #define ICE_VLAN_OL_HW … #define ICE_IPV4_OFOS_HW … #define ICE_IPV4_IL_HW … #define ICE_IPV6_OFOS_HW … #define ICE_IPV6_IL_HW … #define ICE_TCP_IL_HW … #define ICE_UDP_ILOS_HW … #define ICE_GRE_OF_HW … #define ICE_PPPOE_HW … #define ICE_L2TPV3_HW … #define ICE_UDP_OF_HW … #define ICE_TUN_FLAG_FV_IND … /* Mapping of software defined protocol ID to hardware defined protocol ID */ struct ice_protocol_entry { … }; struct ice_ether_hdr { … }; struct ice_ethtype_hdr { … }; struct ice_ether_vlan_hdr { … }; struct ice_vlan_hdr { … }; struct ice_ipv4_hdr { … }; struct ice_ipv6_hdr { … }; struct ice_sctp_hdr { … }; struct ice_l4_hdr { … }; struct ice_udp_tnl_hdr { … }; struct ice_udp_gtp_hdr { … }; struct ice_pfcp_hdr { … } __packed __aligned(…); struct ice_pppoe_hdr { … }; struct ice_l2tpv3_sess_hdr { … }; struct ice_nvgre_hdr { … }; /* Metadata information * * Not all MDIDs can be used by switch block. It depends on package version. * * MDID 16 (Rx offset) * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | A | B | Reserved | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * A = Source port where the transaction came from (3b). * * B = Destination TC of the packet. The TC is relative to a port (5b). * * MDID 17 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | PTYPE | Reserved | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * PTYPE = Encodes the packet type (10b). * * MDID 18 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Packet length | R | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * Packet length = Length of the packet in bytes * (packet always carriers CRC) (14b). * R = Reserved (2b). * * MDID 19 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Source VSI | Reserved | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * Source VSI = Source VSI of packet loopbacked in switch (for egress) (10b). */ #define ICE_MDID_SOURCE_VSI_MASK … /* * MDID 20 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |A|B|C|D|E|F|R|R|G|H|I|J|K|L|M|N| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * A = DSI - set for DSI RX pkts. * B = ipsec_decrypted - invalid on NIC. * C = marker - this is a marker packet. * D = from_network - for TX sets to 0 * for RX: * * 1 - packet is from external link * * 0 - packet source is from internal * E = source_interface_is_rx - reflect the physical interface from where the * packet was received: * * 1 - Rx * * 0 - Tx * F = from_mng - The bit signals that the packet's origin is the management. * G = ucast - Outer L2 MAC address is unicast. * H = mcast - Outer L2 MAC address is multicast. * I = bcast - Outer L2 MAC address is broadcast. * J = second_outer_mac_present - 2 outer MAC headers are present in the packet. * K = STAG or BVLAN - Outer L2 header has STAG (ethernet type 0x88a8) or * BVLAN (ethernet type 0x88a8). * L = ITAG - Outer L2 header has ITAG *ethernet type 0x88e7) * M = EVLAN (0x8100) - Outer L2 header has EVLAN (ethernet type 0x8100) * N = EVLAN (0x9100) - Outer L2 header has EVLAN (ethernet type 0x9100) */ #define ICE_PKT_FROM_NETWORK … #define ICE_PKT_VLAN_STAG … #define ICE_PKT_VLAN_ITAG … #define ICE_PKT_VLAN_EVLAN … #define ICE_PKT_VLAN_MASK … /* MDID 21 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |A|B|C|D|E|F|G|H|I|J|R|R|K|L|M|N| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * A = VLAN (0x8100) - Outer L2 header has VLAN (ethernet type 0x8100) * B = NSHoE - Outer L2 header has NSH (ethernet type 0x894f) * C = MPLS (0x8847) - There is at least 1 MPLS tag in the outer header * (ethernet type 0x8847) * D = MPLS (0x8848) - There is at least 1 MPLS tag in the outer header * (ethernet type 0x8848) * E = multi MPLS - There is more than a single MPLS tag in the outer header * F = inner MPLS - There is inner MPLS tag in the packet * G = tunneled MAC - Set if the packet includes a tunneled MAC * H = tunneled VLAN - Same as VLAN, but for a tunneled header * I = pkt_is_frag - Packet is fragmented (ipv4 or ipv6) * J = ipv6_ext - The packet has routing or destination ipv6 extension in inner * or outer ipv6 headers * K = RoCE - UDP packet detected as RoCEv2 * L = UDP_XSUM_0 - Set to 1 if L4 checksum is 0 in a UDP packet * M = ESP - This is a ESP packet * N = NAT_ESP - This is a ESP packet encapsulated in UDP NAT */ #define ICE_PKT_TUNNEL_MAC … #define ICE_PKT_TUNNEL_VLAN … #define ICE_PKT_TUNNEL_MASK … /* MDID 22 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |A|B|C|D|E|F| G |H|I|J| K |L|M| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * A = fin - fin flag in tcp header * B = sync - sync flag in tcp header * C = rst - rst flag in tcp header * D = psh - psh flag in tcp header * E = ack - ack flag in tcp header * F = urg - urg flag in tcp header * G = tunnel type (3b) - Flags used to decode tunnel type: * * b000 - not a VXLAN/Geneve/GRE tunnel * * b001 - VXLAN-GPE * * b010 - VXLAN (non-GPE) * * b011 - Geneve * * b100 - GRE (no key, no xsum) * * b101 - GREK (key, no xsum) * * b110 - GREC (no key, xsum) * * b111 - GREKC (key, xsum) * H = UDP_GRE - Packet is UDP (VXLAN or VLAN_GPE or Geneve or MPLSoUDP or GRE) * tunnel * I = OAM - VXLAN/Geneve/tunneled NSH packet with the OAM bit set * J = tunneled NSH - Packet has NSHoGRE or NSHoUDP * K = switch (2b) - Direction on switch * * b00 - normal * * b01 - TX force only LAN * * b10 - TX disable LAN * * b11 - direct to VSI * L = swpe - Represents SWPE bit in TX command * M = sw_cmd - Switch command * * MDID 23 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |A|B|C|D| R |E|F|R| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * A = MAC error - Produced by MAC according to L2 error conditions * B = PPRS no offload - FIFO overflow in PPRS or any problematic condition in * PPRS ANA * C = abort - Set when malicious packet is detected * D = partial analysis - ANA's analysing got cut in the middle * (header > 504B etc.) * E = FLM - Flow director hit indication * F = FDLONG - Flow direector long bucket indication * */ #define ICE_MDID_SIZE … #define ICE_META_DATA_ID_HW … enum ice_hw_metadata_id { … }; enum ice_hw_metadata_offset { … }; enum ice_pkt_flags { … }; struct ice_hw_metadata { … }; ice_prot_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 { … }; /* Extractions to be looked up for a given recipe */ struct ice_prot_lkup_ext { … }; #endif /* _ICE_PROTOCOL_TYPE_H_ */
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