1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2020 Intel Corporation
5 #ifndef _ICE_PROTOCOL_TYPE_H_
6 #define _ICE_PROTOCOL_TYPE_H_
7 #include "ice_flex_type.h"
8 #define ICE_IPV6_ADDR_LENGTH 16
10 /* Each recipe can match up to 5 different fields. Fields to match can be meta-
11 * data, values extracted from packet headers, or results from other recipes.
12 * One of the 5 fields is reserved for matching the switch ID. So, up to 4
13 * recipes can provide intermediate results to another one through chaining,
14 * e.g. recipes 0, 1, 2, and 3 can provide intermediate results to recipe 4.
16 #define ICE_NUM_WORDS_RECIPE 4
18 /* Max recipes that can be chained */
19 #define ICE_MAX_CHAIN_RECIPE 5
21 /* 1 word reserved for switch ID from allowed 5 words.
22 * So a recipe can have max 4 words. And you can chain 5 such recipes
23 * together. So maximum words that can be programmed for look up is 5 * 4.
25 #define ICE_MAX_CHAIN_WORDS (ICE_NUM_WORDS_RECIPE * ICE_MAX_CHAIN_RECIPE)
27 /* Field vector index corresponding to chaining */
28 #define ICE_CHAIN_FV_INDEX_START 47
30 enum ice_protocol_type {
57 enum ice_sw_tunnel_type {
59 ICE_SW_TUN_AND_NON_TUN,
61 ICE_SW_TUN_GENEVE, /* GENEVE matches only non-VLAN pkts */
62 ICE_SW_TUN_GENEVE_VLAN, /* GENEVE matches both VLAN and non-VLAN pkts */
63 ICE_SW_TUN_VXLAN, /* VXLAN matches only non-VLAN pkts */
64 ICE_SW_TUN_VXLAN_VLAN, /* VXLAN matches both VLAN and non-VLAN pkts */
66 ICE_SW_TUN_UDP, /* This means all "UDP" tunnel types: VXLAN-GPE, VXLAN
76 ICE_SW_TUN_PPPOE_IPV4,
77 ICE_SW_TUN_PPPOE_IPV4_TCP,
78 ICE_SW_TUN_PPPOE_IPV4_UDP,
79 ICE_SW_TUN_PPPOE_IPV6,
80 ICE_SW_TUN_PPPOE_IPV6_TCP,
81 ICE_SW_TUN_PPPOE_IPV6_UDP,
86 ICE_SW_TUN_IPV4_NAT_T,
87 ICE_SW_TUN_IPV6_NAT_T,
88 ICE_SW_TUN_IPV4_L2TPV3,
89 ICE_SW_TUN_IPV6_L2TPV3,
90 ICE_SW_TUN_PROFID_IPV6_ESP,
91 ICE_SW_TUN_PROFID_IPV6_AH,
92 ICE_SW_TUN_PROFID_MAC_IPV6_L2TPV3,
93 ICE_SW_TUN_PROFID_IPV6_NAT_T,
94 ICE_SW_TUN_PROFID_IPV4_PFCP_NODE,
95 ICE_SW_TUN_PROFID_IPV4_PFCP_SESSION,
96 ICE_SW_TUN_PROFID_IPV6_PFCP_NODE,
97 ICE_SW_TUN_PROFID_IPV6_PFCP_SESSION,
98 ICE_ALL_TUNNELS /* All tunnel types including NVGRE */
101 /* Decoders for ice_prot_id:
109 ICE_PROT_ID_INVAL = 0,
110 ICE_PROT_MAC_OF_OR_S = 1,
113 ICE_PROT_MAC_IN_MAC = 7,
114 ICE_PROT_ETYPE_OL = 9,
115 ICE_PROT_ETYPE_IL = 10,
117 ICE_PROT_EVLAN_O = 16,
118 ICE_PROT_VLAN_O = 17,
119 ICE_PROT_VLAN_IF = 18,
120 ICE_PROT_MPLS_OL_MINUS_1 = 27,
121 ICE_PROT_MPLS_OL_OR_OS = 28,
122 ICE_PROT_MPLS_IL = 29,
123 ICE_PROT_IPV4_OF_OR_S = 32,
124 ICE_PROT_IPV4_IL = 33,
125 ICE_PROT_IPV6_OF_OR_S = 40,
126 ICE_PROT_IPV6_IL = 41,
127 ICE_PROT_IPV6_FRAG = 47,
128 ICE_PROT_TCP_IL = 49,
129 ICE_PROT_UDP_OF = 52,
130 ICE_PROT_UDP_IL_OR_S = 53,
131 ICE_PROT_GRE_OF = 64,
135 ICE_PROT_SCTP_IL = 96,
136 ICE_PROT_ICMP_IL = 98,
137 ICE_PROT_ICMPV6_IL = 100,
138 ICE_PROT_VRRP_F = 101,
140 ICE_PROT_PPPOE = 103,
141 ICE_PROT_L2TPV3 = 104,
142 ICE_PROT_ATAOE_OF = 114,
143 ICE_PROT_CTRL_OF = 116,
144 ICE_PROT_LLDP_OF = 117,
145 ICE_PROT_ARP_OF = 118,
146 ICE_PROT_EAPOL_OF = 120,
147 ICE_PROT_META_ID = 255, /* when offset == metaddata */
148 ICE_PROT_INVALID = 255 /* when offset == ICE_FV_OFFSET_INVAL */
151 #define ICE_VNI_OFFSET 12 /* offset of VNI from ICE_PROT_UDP_OF */
153 #define ICE_MAC_OFOS_HW 1
154 #define ICE_MAC_IL_HW 4
155 #define ICE_ETYPE_OL_HW 9
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_ESP_HW 88
165 #define ICE_SCTP_IL_HW 96
166 #define ICE_PPPOE_HW 103
167 #define ICE_L2TPV3_HW 104
169 /* ICE_UDP_OF is used to identify all 3 tunnel types
170 * VXLAN, GENEVE and VXLAN_GPE. To differentiate further
171 * need to use flags from the field vector
173 #define ICE_UDP_OF_HW 52 /* UDP Tunnels */
174 #define ICE_GRE_OF_HW 64 /* NVGRE */
175 #define ICE_META_DATA_ID_HW 255 /* this is used for tunnel type */
177 #define ICE_MDID_SIZE 2
178 #define ICE_TUN_FLAG_MDID 21
179 #define ICE_TUN_FLAG_MDID_OFF (ICE_MDID_SIZE * ICE_TUN_FLAG_MDID)
180 #define ICE_TUN_FLAG_MASK 0xFF
181 #define ICE_TUN_FLAG_VLAN_MASK 0x01
182 #define ICE_TUN_FLAG_FV_IND 2
184 #define ICE_PROTOCOL_MAX_ENTRIES 16
186 /* Mapping of software defined protocol ID to hardware defined protocol ID */
187 struct ice_protocol_entry {
188 enum ice_protocol_type type;
192 struct ice_ether_hdr {
193 u8 dst_addr[ETH_ALEN];
194 u8 src_addr[ETH_ALEN];
197 struct ice_ethtype_hdr {
201 struct ice_ether_vlan_hdr {
202 u8 dst_addr[ETH_ALEN];
203 u8 src_addr[ETH_ALEN];
207 struct ice_vlan_hdr {
212 struct ice_ipv4_hdr {
225 struct ice_le_ver_tc_flow {
236 struct ice_ipv6_hdr {
237 __be32 be_ver_tc_flow;
241 u8 src_addr[ICE_IPV6_ADDR_LENGTH];
242 u8 dst_addr[ICE_IPV6_ADDR_LENGTH];
245 struct ice_sctp_hdr {
248 __be32 verification_tag;
259 struct ice_udp_tnl_hdr {
262 __be32 vni; /* only use lower 24-bits */
265 struct ice_udp_gtp_hdr {
270 __be16 rsrvd_seq_nbr;
279 struct ice_pppoe_hdr {
284 __be16 ppp_prot_id; /* control and data only */
287 struct ice_pfcp_hdr {
296 struct ice_l2tpv3_sess_hdr {
314 struct ice_nat_t_hdr {
315 struct ice_esp_hdr esp;
325 struct ice_ether_hdr eth_hdr;
326 struct ice_ethtype_hdr ethertype;
327 struct ice_vlan_hdr vlan_hdr;
328 struct ice_ipv4_hdr ipv4_hdr;
329 struct ice_ipv6_hdr ipv6_hdr;
330 struct ice_l4_hdr l4_hdr;
331 struct ice_sctp_hdr sctp_hdr;
332 struct ice_udp_tnl_hdr tnl_hdr;
333 struct ice_nvgre nvgre_hdr;
334 struct ice_udp_gtp_hdr gtp_hdr;
335 struct ice_pppoe_hdr pppoe_hdr;
336 struct ice_pfcp_hdr pfcp_hdr;
337 struct ice_l2tpv3_sess_hdr l2tpv3_sess_hdr;
338 struct ice_esp_hdr esp_hdr;
339 struct ice_ah_hdr ah_hdr;
340 struct ice_nat_t_hdr nat_t_hdr;
343 /* This is mapping table entry that maps every word within a given protocol
344 * structure to the real byte offset as per the specification of that
346 * for e.g. dst address is 3 words in ethertype header and corresponding bytes
347 * are 0, 2, 3 in the actual packet header and src address is at 4, 6, 8
349 struct ice_prot_ext_tbl_entry {
350 enum ice_protocol_type prot_type;
351 /* Byte offset into header of given protocol type */
352 u8 offs[sizeof(union ice_prot_hdr)];
355 /* Extractions to be looked up for a given recipe */
356 struct ice_prot_lkup_ext {
359 /* create a buffer to hold max words per recipe */
360 u16 field_off[ICE_MAX_CHAIN_WORDS];
361 u16 field_mask[ICE_MAX_CHAIN_WORDS];
363 struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS];
365 /* Indicate field offsets that have field vector indices assigned */
366 ice_declare_bitmap(done, ICE_MAX_CHAIN_WORDS);
369 struct ice_pref_recipe_group {
370 u8 n_val_pairs; /* Number of valid pairs */
371 struct ice_fv_word pairs[ICE_NUM_WORDS_RECIPE];
372 u16 mask[ICE_NUM_WORDS_RECIPE];
375 struct ice_recp_grp_entry {
376 struct LIST_ENTRY_TYPE l_entry;
378 #define ICE_INVAL_CHAIN_IND 0xFF
381 u16 fv_idx[ICE_NUM_WORDS_RECIPE];
382 u16 fv_mask[ICE_NUM_WORDS_RECIPE];
383 struct ice_pref_recipe_group r_group;
385 #endif /* _ICE_PROTOCOL_TYPE_H_ */