ceph/src/spdk/dpdk/drivers/net/ice/base/ice_protocol_type.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2001-2019
   3  */
   4
   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
   9
  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.
  15  */
  16 #define ICE_NUM_WORDS_RECIPE 4
  17
  18 /* Max recipes that can be chained */
  19 #define ICE_MAX_CHAIN_RECIPE 5
  20
  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.
  24  */
  25 #define ICE_MAX_CHAIN_WORDS (ICE_NUM_WORDS_RECIPE * ICE_MAX_CHAIN_RECIPE)
  26
  27 /* Field vector index corresponding to chaining */
  28 #define ICE_CHAIN_FV_INDEX_START 47
  29
  30 enum ice_protocol_type {
  31         ICE_MAC_OFOS = 0,
  32         ICE_MAC_IL,
  33         ICE_IPV4_OFOS,
  34         ICE_IPV4_IL,
  35         ICE_IPV6_IL,
  36         ICE_IPV6_OFOS,
  37         ICE_TCP_IL,
  38         ICE_UDP_ILOS,
  39         ICE_SCTP_IL,
  40         ICE_VXLAN,
  41         ICE_GENEVE,
  42         ICE_VXLAN_GPE,
  43         ICE_NVGRE,
  44         ICE_PROTOCOL_LAST
  45 };
  46
  47 enum ice_sw_tunnel_type {
  48         ICE_NON_TUN,
  49         ICE_SW_TUN_VXLAN_GPE,
  50         ICE_SW_TUN_GENEVE,
  51         ICE_SW_TUN_VXLAN,
  52         ICE_SW_TUN_NVGRE,
  53         ICE_SW_TUN_UDP, /* This means all "UDP" tunnel types: VXLAN-GPE, VXLAN
  54                          * and GENEVE
  55                          */
  56         ICE_ALL_TUNNELS /* All tunnel types including NVGRE */
  57 };
  58
  59 /* Decoders for ice_prot_id:
  60  * - F: First
  61  * - I: Inner
  62  * - L: Last
  63  * - O: Outer
  64  * - S: Single
  65  */
  66 enum ice_prot_id {
  67         ICE_PROT_ID_INVAL       = 0,
  68         ICE_PROT_MAC_OF_OR_S    = 1,
  69         ICE_PROT_MAC_O2         = 2,
  70         ICE_PROT_MAC_IL         = 4,
  71         ICE_PROT_MAC_IN_MAC     = 7,
  72         ICE_PROT_ETYPE_OL       = 9,
  73         ICE_PROT_ETYPE_IL       = 10,
  74         ICE_PROT_PAY            = 15,
  75         ICE_PROT_EVLAN_O        = 16,
  76         ICE_PROT_VLAN_O         = 17,
  77         ICE_PROT_VLAN_IF        = 18,
  78         ICE_PROT_MPLS_OL_MINUS_1 = 27,
  79         ICE_PROT_MPLS_OL_OR_OS  = 28,
  80         ICE_PROT_MPLS_IL        = 29,
  81         ICE_PROT_IPV4_OF_OR_S   = 32,
  82         ICE_PROT_IPV4_IL        = 33,
  83         ICE_PROT_IPV6_OF_OR_S   = 40,
  84         ICE_PROT_IPV6_IL        = 41,
  85         ICE_PROT_IPV6_FRAG      = 47,
  86         ICE_PROT_TCP_IL         = 49,
  87         ICE_PROT_UDP_OF         = 52,
  88         ICE_PROT_UDP_IL_OR_S    = 53,
  89         ICE_PROT_GRE_OF         = 64,
  90         ICE_PROT_NSH_F          = 84,
  91         ICE_PROT_ESP_F          = 88,
  92         ICE_PROT_ESP_2          = 89,
  93         ICE_PROT_SCTP_IL        = 96,
  94         ICE_PROT_ICMP_IL        = 98,
  95         ICE_PROT_ICMPV6_IL      = 100,
  96         ICE_PROT_VRRP_F         = 101,
  97         ICE_PROT_OSPF           = 102,
  98         ICE_PROT_ATAOE_OF       = 114,
  99         ICE_PROT_CTRL_OF        = 116,
 100         ICE_PROT_LLDP_OF        = 117,
 101         ICE_PROT_ARP_OF         = 118,
 102         ICE_PROT_EAPOL_OF       = 120,
 103         ICE_PROT_META_ID        = 255, /* when offset == metaddata */
 104         ICE_PROT_INVALID        = 255  /* when offset == 0xFF */
 105 };
 106
 107
 108 #define ICE_MAC_OFOS_HW         1
 109 #define ICE_MAC_IL_HW           4
 110 #define ICE_IPV4_OFOS_HW        32
 111 #define ICE_IPV4_IL_HW          33
 112 #define ICE_IPV6_OFOS_HW        40
 113 #define ICE_IPV6_IL_HW          41
 114 #define ICE_TCP_IL_HW           49
 115 #define ICE_UDP_ILOS_HW         53
 116 #define ICE_SCTP_IL_HW          96
 117
 118 /* ICE_UDP_OF is used to identify all 3 tunnel types
 119  * VXLAN, GENEVE and VXLAN_GPE. To differentiate further
 120  * need to use flags from the field vector
 121  */
 122 #define ICE_UDP_OF_HW   52 /* UDP Tunnels */
 123 #define ICE_GRE_OF_HW   64 /* NVGRE */
 124 #define ICE_META_DATA_ID_HW 255 /* this is used for tunnel type */
 125
 126 #define ICE_TUN_FLAG_MASK 0xFF
 127 #define ICE_TUN_FLAG_FV_IND 2
 128
 129 #define ICE_PROTOCOL_MAX_ENTRIES 16
 130
 131 /* Mapping of software defined protocol ID to hardware defined protocol ID */
 132 struct ice_protocol_entry {
 133         enum ice_protocol_type type;
 134         u8 protocol_id;
 135 };
 136
 137
 138 struct ice_ether_hdr {
 139         u8 dst_addr[ETH_ALEN];
 140         u8 src_addr[ETH_ALEN];
 141         u16 ethtype_id;
 142 };
 143
 144 struct ice_ether_vlan_hdr {
 145         u8 dst_addr[ETH_ALEN];
 146         u8 src_addr[ETH_ALEN];
 147         u32 vlan_id;
 148 };
 149
 150 struct ice_ipv4_hdr {
 151         u8 version;
 152         u8 tos;
 153         u16 total_length;
 154         u16 id;
 155         u16 frag_off;
 156         u8 time_to_live;
 157         u8 protocol;
 158         u16 check;
 159         u32 src_addr;
 160         u32 dst_addr;
 161 };
 162
 163 struct ice_ipv6_hdr {
 164         u8 version;
 165         u8 tc;
 166         u16 flow_label;
 167         u16 payload_len;
 168         u8 next_hdr;
 169         u8 hop_limit;
 170         u8 src_addr[ICE_IPV6_ADDR_LENGTH];
 171         u8 dst_addr[ICE_IPV6_ADDR_LENGTH];
 172 };
 173
 174 struct ice_sctp_hdr {
 175         u16 src_port;
 176         u16 dst_port;
 177         u32 verification_tag;
 178         u32 check;
 179 };
 180
 181 struct ice_l4_hdr {
 182         u16 src_port;
 183         u16 dst_port;
 184         u16 len;
 185         u16 check;
 186 };
 187
 188 struct ice_udp_tnl_hdr {
 189         u16 field;
 190         u16 proto_type;
 191         u16 vni;
 192 };
 193
 194 struct ice_nvgre {
 195         u16 tni;
 196         u16 flow_id;
 197 };
 198
 199 union ice_prot_hdr {
 200                 struct ice_ether_hdr eth_hdr;
 201                 struct ice_ipv4_hdr ipv4_hdr;
 202                 struct ice_ipv6_hdr ice_ipv6_ofos_hdr;
 203                 struct ice_l4_hdr l4_hdr;
 204                 struct ice_sctp_hdr sctp_hdr;
 205                 struct ice_udp_tnl_hdr tnl_hdr;
 206                 struct ice_nvgre nvgre_hdr;
 207 };
 208
 209 /* This is mapping table entry that maps every word within a given protocol
 210  * structure to the real byte offset as per the specification of that
 211  * protocol header.
 212  * for e.g. dst address is 3 words in ethertype header and corresponding bytes
 213  * are 0, 2, 3 in the actual packet header and src address is at 4, 6, 8
 214  */
 215 struct ice_prot_ext_tbl_entry {
 216         enum ice_protocol_type prot_type;
 217         /* Byte offset into header of given protocol type */
 218         u8 offs[sizeof(union ice_prot_hdr)];
 219 };
 220
 221 /* Extractions to be looked up for a given recipe */
 222 struct ice_prot_lkup_ext {
 223         u16 prot_type;
 224         u8 n_val_words;
 225         /* create a buffer to hold max words per recipe */
 226         u16 field_off[ICE_MAX_CHAIN_WORDS];
 227
 228         struct ice_fv_word fv_words[ICE_MAX_CHAIN_WORDS];
 229
 230         /* Indicate field offsets that have field vector indices assigned */
 231         ice_declare_bitmap(done, ICE_MAX_CHAIN_WORDS);
 232 };
 233
 234 struct ice_pref_recipe_group {
 235         u8 n_val_pairs;         /* Number of valid pairs */
 236         struct ice_fv_word pairs[ICE_NUM_WORDS_RECIPE];
 237 };
 238
 239 struct ice_recp_grp_entry {
 240         struct LIST_ENTRY_TYPE l_entry;
 241
 242 #define ICE_INVAL_CHAIN_IND 0xFF
 243         u16 rid;
 244         u8 chain_idx;
 245         u16 fv_idx[ICE_NUM_WORDS_RECIPE];
 246         struct ice_pref_recipe_group r_group;
 247 };
 248 #endif /* _ICE_PROTOCOL_TYPE_H_ */