1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /* Copyright (c) 2021, Intel Corporation
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
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9 * this list of conditions and the following disclaimer.
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19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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33 #ifndef _ICE_PROTOCOL_TYPE_H_
34 #define _ICE_PROTOCOL_TYPE_H_
35 #include "ice_flex_type.h"
36 #define ICE_IPV6_ADDR_LENGTH 16
38 /* Each recipe can match up to 5 different fields. Fields to match can be meta-
39 * data, values extracted from packet headers, or results from other recipes.
40 * One of the 5 fields is reserved for matching the switch ID. So, up to 4
41 * recipes can provide intermediate results to another one through chaining,
42 * e.g. recipes 0, 1, 2, and 3 can provide intermediate results to recipe 4.
44 #define ICE_NUM_WORDS_RECIPE 4
46 /* Max recipes that can be chained */
47 #define ICE_MAX_CHAIN_RECIPE 5
49 /* 1 word reserved for switch ID from allowed 5 words.
50 * So a recipe can have max 4 words. And you can chain 5 such recipes
51 * together. So maximum words that can be programmed for look up is 5 * 4.
53 #define ICE_MAX_CHAIN_WORDS (ICE_NUM_WORDS_RECIPE * ICE_MAX_CHAIN_RECIPE)
55 /* Field vector index corresponding to chaining */
56 #define ICE_CHAIN_FV_INDEX_START 47
58 enum ice_protocol_type {
79 enum ice_sw_tunnel_type {
81 ICE_SW_TUN_AND_NON_TUN,
83 ICE_SW_TUN_GENEVE, /* GENEVE matches only non-VLAN pkts */
84 ICE_SW_TUN_GENEVE_VLAN, /* GENEVE matches both VLAN and non-VLAN pkts */
85 ICE_SW_TUN_VXLAN, /* VXLAN matches only non-VLAN pkts */
86 ICE_SW_TUN_VXLAN_VLAN, /* VXLAN matches both VLAN and non-VLAN pkts */
88 ICE_SW_TUN_UDP, /* This means all "UDP" tunnel types: VXLAN-GPE, VXLAN
91 ICE_SW_TUN_IPV4_GTP_IPV4_TCP,
92 ICE_SW_TUN_IPV4_GTP_IPV4_UDP,
93 ICE_SW_TUN_IPV4_GTP_IPV6_TCP,
94 ICE_SW_TUN_IPV4_GTP_IPV6_UDP,
95 ICE_SW_TUN_IPV6_GTP_IPV4_TCP,
96 ICE_SW_TUN_IPV6_GTP_IPV4_UDP,
97 ICE_SW_TUN_IPV6_GTP_IPV6_TCP,
98 ICE_SW_TUN_IPV6_GTP_IPV6_UDP,
99 ICE_ALL_TUNNELS /* All tunnel types including NVGRE */
102 /* Decoders for ice_prot_id:
110 ICE_PROT_ID_INVAL = 0,
111 ICE_PROT_MAC_OF_OR_S = 1,
114 ICE_PROT_MAC_IN_MAC = 7,
115 ICE_PROT_ETYPE_OL = 9,
116 ICE_PROT_ETYPE_IL = 10,
118 ICE_PROT_EVLAN_O = 16,
119 ICE_PROT_VLAN_O = 17,
120 ICE_PROT_VLAN_IF = 18,
121 ICE_PROT_MPLS_OL_MINUS_1 = 27,
122 ICE_PROT_MPLS_OL_OR_OS = 28,
123 ICE_PROT_MPLS_IL = 29,
124 ICE_PROT_IPV4_OF_OR_S = 32,
125 ICE_PROT_IPV4_IL = 33,
126 ICE_PROT_IPV6_OF_OR_S = 40,
127 ICE_PROT_IPV6_IL = 41,
128 ICE_PROT_IPV6_FRAG = 47,
129 ICE_PROT_TCP_IL = 49,
130 ICE_PROT_UDP_OF = 52,
131 ICE_PROT_UDP_IL_OR_S = 53,
132 ICE_PROT_GRE_OF = 64,
136 ICE_PROT_SCTP_IL = 96,
137 ICE_PROT_ICMP_IL = 98,
138 ICE_PROT_ICMPV6_IL = 100,
139 ICE_PROT_VRRP_F = 101,
141 ICE_PROT_ATAOE_OF = 114,
142 ICE_PROT_CTRL_OF = 116,
143 ICE_PROT_LLDP_OF = 117,
144 ICE_PROT_ARP_OF = 118,
145 ICE_PROT_EAPOL_OF = 120,
146 ICE_PROT_META_ID = 255, /* when offset == metaddata */
147 ICE_PROT_INVALID = 255 /* when offset == ICE_FV_OFFSET_INVAL */
150 #define ICE_VNI_OFFSET 12 /* offset of VNI from ICE_PROT_UDP_OF */
152 #define ICE_MAC_OFOS_HW 1
153 #define ICE_MAC_IL_HW 4
154 #define ICE_ETYPE_OL_HW 9
155 #define ICE_VLAN_OF_HW 16
156 #define ICE_VLAN_OL_HW 17
157 #define ICE_IPV4_OFOS_HW 32
158 #define ICE_IPV4_IL_HW 33
159 #define ICE_IPV6_OFOS_HW 40
160 #define ICE_IPV6_IL_HW 41
161 #define ICE_TCP_IL_HW 49
162 #define ICE_UDP_ILOS_HW 53
163 #define ICE_SCTP_IL_HW 96
165 /* ICE_UDP_OF is used to identify all 3 tunnel types
166 * VXLAN, GENEVE and VXLAN_GPE. To differentiate further
167 * need to use flags from the field vector
169 #define ICE_UDP_OF_HW 52 /* UDP Tunnels */
170 #define ICE_GRE_OF_HW 64 /* NVGRE */
171 #define ICE_META_DATA_ID_HW 255 /* this is used for tunnel type */
173 #define ICE_MDID_SIZE 2
174 #define ICE_TUN_FLAG_MDID 21
175 #define ICE_TUN_FLAG_MDID_OFF (ICE_MDID_SIZE * ICE_TUN_FLAG_MDID)
176 #define ICE_TUN_FLAG_MASK 0xFF
177 #define ICE_TUN_FLAG_VLAN_MASK 0x01
178 #define ICE_TUN_FLAG_FV_IND 2
180 #define ICE_PROTOCOL_MAX_ENTRIES 16
182 /* Mapping of software defined protocol ID to hardware defined protocol ID */
183 struct ice_protocol_entry {
184 enum ice_protocol_type type;
188 struct ice_ether_hdr {
189 u8 dst_addr[ETH_ALEN];
190 u8 src_addr[ETH_ALEN];
193 struct ice_ethtype_hdr {
197 struct ice_ether_vlan_hdr {
198 u8 dst_addr[ETH_ALEN];
199 u8 src_addr[ETH_ALEN];
203 struct ice_vlan_hdr {
208 struct ice_ipv4_hdr {
221 struct ice_le_ver_tc_flow {
232 struct ice_ipv6_hdr {
233 __be32 be_ver_tc_flow;
237 u8 src_addr[ICE_IPV6_ADDR_LENGTH];
238 u8 dst_addr[ICE_IPV6_ADDR_LENGTH];
241 struct ice_sctp_hdr {
244 __be32 verification_tag;
255 struct ice_udp_tnl_hdr {
258 __be32 vni; /* only use lower 24-bits */
261 struct ice_udp_gtp_hdr {
266 __be16 rsrvd_seq_nbr;
282 struct ice_ether_hdr eth_hdr;
283 struct ice_ethtype_hdr ethertype;
284 struct ice_vlan_hdr vlan_hdr;
285 struct ice_ipv4_hdr ipv4_hdr;
286 struct ice_ipv6_hdr ipv6_hdr;
287 struct ice_l4_hdr l4_hdr;
288 struct ice_sctp_hdr sctp_hdr;
289 struct ice_udp_tnl_hdr tnl_hdr;
290 struct ice_nvgre nvgre_hdr;
291 struct ice_udp_gtp_hdr gtp_hdr;
294 /* This is mapping table entry that maps every word within a given protocol
295 * structure to the real byte offset as per the specification of that
297 * for e.g. dst address is 3 words in ethertype header and corresponding bytes
298 * are 0, 2, 3 in the actual packet header and src address is at 4, 6, 8
300 struct ice_prot_ext_tbl_entry {
301 enum ice_protocol_type prot_type;
302 /* Byte offset into header of given protocol type */
303 u8 offs[sizeof(union ice_prot_hdr)];
306 /* Extractions to be looked up for a given recipe */
307 struct ice_prot_lkup_ext {
310 /* create a buffer to hold max words per recipe */
311 u16 field_off[ICE_MAX_CHAIN_WORDS];
312 u16 field_mask[ICE_MAX_CHAIN_WORDS];
314 struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS];
316 /* Indicate field offsets that have field vector indices assigned */
317 ice_declare_bitmap(done, ICE_MAX_CHAIN_WORDS);
320 struct ice_pref_recipe_group {
321 u8 n_val_pairs; /* Number of valid pairs */
322 struct ice_fv_word pairs[ICE_NUM_WORDS_RECIPE];
323 u16 mask[ICE_NUM_WORDS_RECIPE];
326 struct ice_recp_grp_entry {
327 struct LIST_ENTRY_TYPE l_entry;
329 #define ICE_INVAL_CHAIN_IND 0xFF
332 u16 fv_idx[ICE_NUM_WORDS_RECIPE];
333 u16 fv_mask[ICE_NUM_WORDS_RECIPE];
334 struct ice_pref_recipe_group r_group;
336 #endif /* _ICE_PROTOCOL_TYPE_H_ */