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41ad9f8ee6
enum ice_pkt_flags contains values such as ICE_PKT_FLAGS_VLAN and ICE_PKT_FLAGS_TUNNEL, but actually the flags words which they refer to contain a range of unrelated values - e.g. word 0 (ICE_PKT_FLAGS_VLAN) contains fields such as from_network and ucast, which have nothing to do with VLAN. Rename each enum value to ICE_PKT_FLAGS_MDID<number>, so it's clear in which flags word does some value reside. Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
468 lines
12 KiB
C
468 lines
12 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2019, Intel Corporation. */
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#ifndef _ICE_PROTOCOL_TYPE_H_
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#define _ICE_PROTOCOL_TYPE_H_
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#define ICE_IPV6_ADDR_LENGTH 16
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/* Each recipe can match up to 5 different fields. Fields to match can be meta-
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* data, values extracted from packet headers, or results from other recipes.
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* One of the 5 fields is reserved for matching the switch ID. So, up to 4
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* recipes can provide intermediate results to another one through chaining,
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* e.g. recipes 0, 1, 2, and 3 can provide intermediate results to recipe 4.
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*/
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#define ICE_NUM_WORDS_RECIPE 4
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/* Max recipes that can be chained */
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#define ICE_MAX_CHAIN_RECIPE 5
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/* 1 word reserved for switch ID from allowed 5 words.
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* So a recipe can have max 4 words. And you can chain 5 such recipes
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* together. So maximum words that can be programmed for look up is 5 * 4.
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*/
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#define ICE_MAX_CHAIN_WORDS (ICE_NUM_WORDS_RECIPE * ICE_MAX_CHAIN_RECIPE)
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/* Field vector index corresponding to chaining */
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#define ICE_CHAIN_FV_INDEX_START 47
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enum ice_protocol_type {
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ICE_MAC_OFOS = 0,
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ICE_MAC_IL,
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ICE_ETYPE_OL,
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ICE_ETYPE_IL,
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ICE_VLAN_OFOS,
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ICE_IPV4_OFOS,
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ICE_IPV4_IL,
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ICE_IPV6_OFOS,
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ICE_IPV6_IL,
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ICE_TCP_IL,
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ICE_UDP_OF,
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ICE_UDP_ILOS,
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ICE_VXLAN,
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ICE_GENEVE,
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ICE_NVGRE,
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ICE_GTP,
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ICE_GTP_NO_PAY,
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ICE_PPPOE,
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ICE_L2TPV3,
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ICE_VLAN_EX,
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ICE_VLAN_IN,
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ICE_HW_METADATA,
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ICE_VXLAN_GPE,
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ICE_SCTP_IL,
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ICE_PROTOCOL_LAST
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};
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enum ice_sw_tunnel_type {
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ICE_NON_TUN = 0,
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ICE_SW_TUN_AND_NON_TUN,
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ICE_SW_TUN_VXLAN,
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ICE_SW_TUN_GENEVE,
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ICE_SW_TUN_NVGRE,
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ICE_SW_TUN_GTPU,
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ICE_SW_TUN_GTPC,
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ICE_ALL_TUNNELS /* All tunnel types including NVGRE */
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};
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/* Decoders for ice_prot_id:
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* - F: First
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* - I: Inner
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* - L: Last
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* - O: Outer
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* - S: Single
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*/
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enum ice_prot_id {
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ICE_PROT_ID_INVAL = 0,
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ICE_PROT_MAC_OF_OR_S = 1,
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ICE_PROT_MAC_IL = 4,
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ICE_PROT_ETYPE_OL = 9,
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ICE_PROT_ETYPE_IL = 10,
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ICE_PROT_IPV4_OF_OR_S = 32,
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ICE_PROT_IPV4_IL = 33,
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ICE_PROT_IPV6_OF_OR_S = 40,
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ICE_PROT_IPV6_IL = 41,
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ICE_PROT_TCP_IL = 49,
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ICE_PROT_UDP_OF = 52,
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ICE_PROT_UDP_IL_OR_S = 53,
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ICE_PROT_GRE_OF = 64,
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ICE_PROT_ESP_F = 88,
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ICE_PROT_ESP_2 = 89,
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ICE_PROT_SCTP_IL = 96,
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ICE_PROT_ICMP_IL = 98,
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ICE_PROT_ICMPV6_IL = 100,
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ICE_PROT_PPPOE = 103,
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ICE_PROT_L2TPV3 = 104,
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ICE_PROT_ARP_OF = 118,
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ICE_PROT_META_ID = 255, /* when offset == metadata */
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ICE_PROT_INVALID = 255 /* when offset == ICE_FV_OFFSET_INVAL */
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};
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#define ICE_VNI_OFFSET 12 /* offset of VNI from ICE_PROT_UDP_OF */
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#define ICE_MAC_OFOS_HW 1
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#define ICE_MAC_IL_HW 4
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#define ICE_ETYPE_OL_HW 9
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#define ICE_ETYPE_IL_HW 10
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#define ICE_VLAN_OF_HW 16
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#define ICE_VLAN_OL_HW 17
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#define ICE_IPV4_OFOS_HW 32
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#define ICE_IPV4_IL_HW 33
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#define ICE_IPV6_OFOS_HW 40
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#define ICE_IPV6_IL_HW 41
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#define ICE_TCP_IL_HW 49
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#define ICE_UDP_ILOS_HW 53
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#define ICE_GRE_OF_HW 64
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#define ICE_PPPOE_HW 103
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#define ICE_L2TPV3_HW 104
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#define ICE_UDP_OF_HW 52 /* UDP Tunnels */
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#define ICE_TUN_FLAG_FV_IND 2
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/* Mapping of software defined protocol ID to hardware defined protocol ID */
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struct ice_protocol_entry {
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enum ice_protocol_type type;
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u8 protocol_id;
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};
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struct ice_ether_hdr {
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u8 dst_addr[ETH_ALEN];
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u8 src_addr[ETH_ALEN];
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};
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struct ice_ethtype_hdr {
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__be16 ethtype_id;
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};
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struct ice_ether_vlan_hdr {
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u8 dst_addr[ETH_ALEN];
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u8 src_addr[ETH_ALEN];
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__be32 vlan_id;
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};
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struct ice_vlan_hdr {
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__be16 type;
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__be16 vlan;
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};
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struct ice_ipv4_hdr {
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u8 version;
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u8 tos;
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__be16 total_length;
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__be16 id;
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__be16 frag_off;
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u8 time_to_live;
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u8 protocol;
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__be16 check;
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__be32 src_addr;
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__be32 dst_addr;
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};
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struct ice_ipv6_hdr {
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__be32 be_ver_tc_flow;
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__be16 payload_len;
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u8 next_hdr;
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u8 hop_limit;
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u8 src_addr[ICE_IPV6_ADDR_LENGTH];
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u8 dst_addr[ICE_IPV6_ADDR_LENGTH];
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};
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struct ice_sctp_hdr {
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__be16 src_port;
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__be16 dst_port;
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__be32 verification_tag;
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__be32 check;
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};
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struct ice_l4_hdr {
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__be16 src_port;
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__be16 dst_port;
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__be16 len;
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__be16 check;
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};
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struct ice_udp_tnl_hdr {
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__be16 field;
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__be16 proto_type;
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__be32 vni; /* only use lower 24-bits */
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};
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struct ice_udp_gtp_hdr {
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u8 flags;
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u8 msg_type;
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__be16 rsrvd_len;
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__be32 teid;
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__be16 rsrvd_seq_nbr;
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u8 rsrvd_n_pdu_nbr;
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u8 rsrvd_next_ext;
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u8 rsvrd_ext_len;
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u8 pdu_type;
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u8 qfi;
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u8 rsvrd;
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};
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struct ice_pppoe_hdr {
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u8 rsrvd_ver_type;
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u8 rsrvd_code;
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__be16 session_id;
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__be16 length;
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__be16 ppp_prot_id; /* control and data only */
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};
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struct ice_l2tpv3_sess_hdr {
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__be32 session_id;
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__be64 cookie;
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};
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struct ice_nvgre_hdr {
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__be16 flags;
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__be16 protocol;
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__be32 tni_flow;
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};
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/* Metadata information
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*
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* Not all MDIDs can be used by switch block. It depends on package version.
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*
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* MDID 16 (Rx offset)
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | A | B | Reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* A = Source port where the transaction came from (3b).
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*
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* B = Destination TC of the packet. The TC is relative to a port (5b).
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*
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* MDID 17
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | PTYPE | Reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* PTYPE = Encodes the packet type (10b).
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*
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* MDID 18
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Packet length | R |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* Packet length = Length of the packet in bytes
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* (packet always carriers CRC) (14b).
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* R = Reserved (2b).
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*
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* MDID 19
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Source VSI | Reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* Source VSI = Source VSI of packet loopbacked in switch (for egress) (10b).
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*/
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#define ICE_MDID_SOURCE_VSI_MASK GENMASK(9, 0)
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/*
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* MDID 20
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* |A|B|C|D|E|F|R|R|G|H|I|J|K|L|M|N|
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* A = DSI - set for DSI RX pkts.
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* B = ipsec_decrypted - invalid on NIC.
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* C = marker - this is a marker packet.
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* D = from_network - for TX sets to 0
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* for RX:
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* * 1 - packet is from external link
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* * 0 - packet source is from internal
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* E = source_interface_is_rx - reflect the physical interface from where the
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* packet was received:
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* * 1 - Rx
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* * 0 - Tx
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* F = from_mng - The bit signals that the packet's origin is the management.
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* G = ucast - Outer L2 MAC address is unicast.
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* H = mcast - Outer L2 MAC address is multicast.
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* I = bcast - Outer L2 MAC address is broadcast.
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* J = second_outer_mac_present - 2 outer MAC headers are present in the packet.
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* K = STAG or BVLAN - Outer L2 header has STAG (ethernet type 0x88a8) or
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* BVLAN (ethernet type 0x88a8).
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* L = ITAG - Outer L2 header has ITAG *ethernet type 0x88e7)
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* M = EVLAN (0x8100) - Outer L2 header has EVLAN (ethernet type 0x8100)
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* N = EVLAN (0x9100) - Outer L2 header has EVLAN (ethernet type 0x9100)
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*/
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#define ICE_PKT_FROM_NETWORK BIT(3)
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#define ICE_PKT_VLAN_STAG BIT(12)
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#define ICE_PKT_VLAN_ITAG BIT(13)
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#define ICE_PKT_VLAN_EVLAN (BIT(14) | BIT(15))
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#define ICE_PKT_VLAN_MASK (ICE_PKT_VLAN_STAG | ICE_PKT_VLAN_ITAG | \
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ICE_PKT_VLAN_EVLAN)
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/* MDID 21
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* |A|B|C|D|E|F|G|H|I|J|R|R|K|L|M|N|
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* A = VLAN (0x8100) - Outer L2 header has VLAN (ethernet type 0x8100)
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* B = NSHoE - Outer L2 header has NSH (ethernet type 0x894f)
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* C = MPLS (0x8847) - There is at least 1 MPLS tag in the outer header
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* (ethernet type 0x8847)
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* D = MPLS (0x8848) - There is at least 1 MPLS tag in the outer header
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* (ethernet type 0x8848)
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* E = multi MPLS - There is more than a single MPLS tag in the outer header
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* F = inner MPLS - There is inner MPLS tag in the packet
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* G = tunneled MAC - Set if the packet includes a tunneled MAC
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* H = tunneled VLAN - Same as VLAN, but for a tunneled header
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* I = pkt_is_frag - Packet is fragmented (ipv4 or ipv6)
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* J = ipv6_ext - The packet has routing or destination ipv6 extension in inner
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* or outer ipv6 headers
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* K = RoCE - UDP packet detected as RoCEv2
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* L = UDP_XSUM_0 - Set to 1 if L4 checksum is 0 in a UDP packet
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* M = ESP - This is a ESP packet
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* N = NAT_ESP - This is a ESP packet encapsulated in UDP NAT
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*/
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#define ICE_PKT_TUNNEL_MAC BIT(6)
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#define ICE_PKT_TUNNEL_VLAN BIT(7)
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#define ICE_PKT_TUNNEL_MASK (ICE_PKT_TUNNEL_MAC | ICE_PKT_TUNNEL_VLAN)
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/* MDID 22
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* |A|B|C|D|E|F| G |H|I|J| K |L|M|
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* A = fin - fin flag in tcp header
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* B = sync - sync flag in tcp header
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* C = rst - rst flag in tcp header
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* D = psh - psh flag in tcp header
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* E = ack - ack flag in tcp header
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* F = urg - urg flag in tcp header
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* G = tunnel type (3b) - Flags used to decode tunnel type:
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* * b000 - not a VXLAN/Geneve/GRE tunnel
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* * b001 - VXLAN-GPE
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* * b010 - VXLAN (non-GPE)
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* * b011 - Geneve
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* * b100 - GRE (no key, no xsum)
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* * b101 - GREK (key, no xsum)
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* * b110 - GREC (no key, xsum)
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* * b111 - GREKC (key, xsum)
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* H = UDP_GRE - Packet is UDP (VXLAN or VLAN_GPE or Geneve or MPLSoUDP or GRE)
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* tunnel
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* I = OAM - VXLAN/Geneve/tunneled NSH packet with the OAM bit set
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* J = tunneled NSH - Packet has NSHoGRE or NSHoUDP
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* K = switch (2b) - Direction on switch
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* * b00 - normal
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* * b01 - TX force only LAN
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* * b10 - TX disable LAN
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* * b11 - direct to VSI
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* L = swpe - Represents SWPE bit in TX command
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* M = sw_cmd - Switch command
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*
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* MDID 23
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* |A|B|C|D| R |E|F|R|
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* A = MAC error - Produced by MAC according to L2 error conditions
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* B = PPRS no offload - FIFO overflow in PPRS or any problematic condition in
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* PPRS ANA
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* C = abort - Set when malicious packet is detected
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* D = partial analysis - ANA's analysing got cut in the middle
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* (header > 504B etc.)
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* E = FLM - Flow director hit indication
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* F = FDLONG - Flow direector long bucket indication
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*
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*/
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#define ICE_MDID_SIZE 2
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#define ICE_META_DATA_ID_HW 255
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enum ice_hw_metadata_id {
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ICE_SOURCE_PORT_MDID = 16,
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ICE_PTYPE_MDID = 17,
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ICE_PACKET_LENGTH_MDID = 18,
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ICE_SOURCE_VSI_MDID = 19,
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ICE_PKT_VLAN_MDID = 20,
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ICE_PKT_TUNNEL_MDID = 21,
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ICE_PKT_TCP_MDID = 22,
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ICE_PKT_ERROR_MDID = 23,
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};
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enum ice_hw_metadata_offset {
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ICE_SOURCE_PORT_MDID_OFFSET = ICE_MDID_SIZE * ICE_SOURCE_PORT_MDID,
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ICE_PTYPE_MDID_OFFSET = ICE_MDID_SIZE * ICE_PTYPE_MDID,
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ICE_PACKET_LENGTH_MDID_OFFSET = ICE_MDID_SIZE * ICE_PACKET_LENGTH_MDID,
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ICE_SOURCE_VSI_MDID_OFFSET = ICE_MDID_SIZE * ICE_SOURCE_VSI_MDID,
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ICE_PKT_VLAN_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_VLAN_MDID,
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ICE_PKT_TUNNEL_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_TUNNEL_MDID,
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ICE_PKT_TCP_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_TCP_MDID,
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ICE_PKT_ERROR_MDID_OFFSET = ICE_MDID_SIZE * ICE_PKT_ERROR_MDID,
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};
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enum ice_pkt_flags {
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ICE_PKT_FLAGS_MDID20 = 0,
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ICE_PKT_FLAGS_MDID21 = 1,
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ICE_PKT_FLAGS_MDID22 = 2,
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ICE_PKT_FLAGS_MDID23 = 3,
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};
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struct ice_hw_metadata {
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__be16 source_port;
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__be16 ptype;
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__be16 packet_length;
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__be16 source_vsi;
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__be16 flags[4];
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};
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union ice_prot_hdr {
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struct ice_ether_hdr eth_hdr;
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struct ice_ethtype_hdr ethertype;
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struct ice_vlan_hdr vlan_hdr;
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struct ice_ipv4_hdr ipv4_hdr;
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struct ice_ipv6_hdr ipv6_hdr;
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struct ice_l4_hdr l4_hdr;
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struct ice_sctp_hdr sctp_hdr;
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struct ice_udp_tnl_hdr tnl_hdr;
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struct ice_nvgre_hdr nvgre_hdr;
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struct ice_udp_gtp_hdr gtp_hdr;
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struct ice_pppoe_hdr pppoe_hdr;
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struct ice_l2tpv3_sess_hdr l2tpv3_sess_hdr;
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struct ice_hw_metadata metadata;
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};
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/* This is mapping table entry that maps every word within a given protocol
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* structure to the real byte offset as per the specification of that
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* protocol header.
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* for e.g. dst address is 3 words in ethertype header and corresponding bytes
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* are 0, 2, 3 in the actual packet header and src address is at 4, 6, 8
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*/
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struct ice_prot_ext_tbl_entry {
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enum ice_protocol_type prot_type;
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/* Byte offset into header of given protocol type */
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u8 offs[sizeof(union ice_prot_hdr)];
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};
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/* Extractions to be looked up for a given recipe */
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struct ice_prot_lkup_ext {
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u16 prot_type;
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u8 n_val_words;
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/* create a buffer to hold max words per recipe */
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u16 field_off[ICE_MAX_CHAIN_WORDS];
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u16 field_mask[ICE_MAX_CHAIN_WORDS];
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struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS];
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/* Indicate field offsets that have field vector indices assigned */
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DECLARE_BITMAP(done, ICE_MAX_CHAIN_WORDS);
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};
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struct ice_pref_recipe_group {
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u8 n_val_pairs; /* Number of valid pairs */
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struct ice_fv_word pairs[ICE_NUM_WORDS_RECIPE];
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u16 mask[ICE_NUM_WORDS_RECIPE];
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};
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struct ice_recp_grp_entry {
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struct list_head l_entry;
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#define ICE_INVAL_CHAIN_IND 0xFF
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u16 rid;
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u8 chain_idx;
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u16 fv_idx[ICE_NUM_WORDS_RECIPE];
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u16 fv_mask[ICE_NUM_WORDS_RECIPE];
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struct ice_pref_recipe_group r_group;
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};
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#endif /* _ICE_PROTOCOL_TYPE_H_ */
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