drivers/net/iavf/iavf_hash.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation
   3  */
   4
   5 #include <sys/queue.h>
   6 #include <stdio.h>
   7 #include <errno.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <stdarg.h>
  12
  13 #include <rte_debug.h>
  14 #include <rte_ether.h>
  15 #include <rte_ethdev_driver.h>
  16 #include <rte_log.h>
  17 #include <rte_malloc.h>
  18 #include <rte_eth_ctrl.h>
  19 #include <rte_tailq.h>
  20 #include <rte_flow_driver.h>
  21
  22 #include "iavf_log.h"
  23 #include "iavf.h"
  24 #include "iavf_generic_flow.h"
  25
  26 #define IAVF_PHINT_NONE                         0
  27 #define IAVF_PHINT_GTPU                         BIT_ULL(0)
  28 #define IAVF_PHINT_GTPU_EH                      BIT_ULL(1)
  29 #define IAVF_PHINT_GTPU_EH_DWN                  BIT_ULL(2)
  30 #define IAVF_PHINT_GTPU_EH_UP                   BIT_ULL(3)
  31 #define IAVF_PHINT_OUTER_IPV4                   BIT_ULL(4)
  32 #define IAVF_PHINT_OUTER_IPV6                   BIT_ULL(5)
  33
  34 #define IAVF_PHINT_GTPU_MSK     (IAVF_PHINT_GTPU        | \
  35                                  IAVF_PHINT_GTPU_EH     | \
  36                                  IAVF_PHINT_GTPU_EH_DWN | \
  37                                  IAVF_PHINT_GTPU_EH_UP)
  38
  39 #define IAVF_PHINT_LAYERS_MSK   (IAVF_PHINT_OUTER_IPV4  | \
  40                                  IAVF_PHINT_OUTER_IPV6)
  41
  42 #define IAVF_GTPU_EH_DWNLINK    0
  43 #define IAVF_GTPU_EH_UPLINK     1
  44
  45 struct iavf_hash_match_type {
  46         uint64_t hash_type;
  47         struct virtchnl_proto_hdrs *proto_hdrs;
  48         uint64_t pattern_hint;
  49 };
  50
  51 struct iavf_rss_meta {
  52         struct virtchnl_proto_hdrs proto_hdrs;
  53         enum virtchnl_rss_algorithm rss_algorithm;
  54 };
  55
  56 struct iavf_hash_flow_cfg {
  57         struct virtchnl_rss_cfg *rss_cfg;
  58         bool simple_xor;
  59 };
  60
  61 static int
  62 iavf_hash_init(struct iavf_adapter *ad);
  63 static int
  64 iavf_hash_create(struct iavf_adapter *ad, struct rte_flow *flow, void *meta,
  65                  struct rte_flow_error *error);
  66 static int
  67 iavf_hash_destroy(struct iavf_adapter *ad, struct rte_flow *flow,
  68                   struct rte_flow_error *error);
  69 static void
  70 iavf_hash_uninit(struct iavf_adapter *ad);
  71 static void
  72 iavf_hash_free(struct rte_flow *flow);
  73 static int
  74 iavf_hash_parse_pattern_action(struct iavf_adapter *ad,
  75                                struct iavf_pattern_match_item *array,
  76                                uint32_t array_len,
  77                                const struct rte_flow_item pattern[],
  78                                const struct rte_flow_action actions[],
  79                                void **meta,
  80                                struct rte_flow_error *error);
  81
  82 #define FIELD_SELECTOR(proto_hdr_field) \
  83                 (1UL << ((proto_hdr_field) & PROTO_HDR_FIELD_MASK))
  84 #define BUFF_NOUSED                     0
  85
  86 #define proto_hdr_eth { \
  87         VIRTCHNL_PROTO_HDR_ETH, \
  88         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) | \
  89         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST), {BUFF_NOUSED} }
  90
  91 #define proto_hdr_svlan { \
  92         VIRTCHNL_PROTO_HDR_S_VLAN, \
  93         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID), {BUFF_NOUSED} }
  94
  95 #define proto_hdr_cvlan { \
  96         VIRTCHNL_PROTO_HDR_C_VLAN, \
  97         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID), {BUFF_NOUSED} }
  98
  99 #define proto_hdr_ipv4 { \
 100         VIRTCHNL_PROTO_HDR_IPV4, \
 101         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | \
 102         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST), {BUFF_NOUSED} }
 103
 104 #define proto_hdr_ipv4_with_prot { \
 105         VIRTCHNL_PROTO_HDR_IPV4, \
 106         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | \
 107         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) | \
 108         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), {BUFF_NOUSED} }
 109
 110 #define proto_hdr_ipv6 { \
 111         VIRTCHNL_PROTO_HDR_IPV6, \
 112         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | \
 113         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), {BUFF_NOUSED} }
 114
 115 #define proto_hdr_ipv6_with_prot { \
 116         VIRTCHNL_PROTO_HDR_IPV6, \
 117         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | \
 118         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) | \
 119         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), {BUFF_NOUSED} }
 120
 121 #define proto_hdr_udp { \
 122         VIRTCHNL_PROTO_HDR_UDP, \
 123         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) | \
 124         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT), {BUFF_NOUSED} }
 125
 126 #define proto_hdr_tcp { \
 127         VIRTCHNL_PROTO_HDR_TCP, \
 128         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) | \
 129         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT), {BUFF_NOUSED} }
 130
 131 #define proto_hdr_sctp { \
 132         VIRTCHNL_PROTO_HDR_SCTP, \
 133         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) | \
 134         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT), {BUFF_NOUSED} }
 135
 136 #define proto_hdr_esp { \
 137         VIRTCHNL_PROTO_HDR_ESP, \
 138         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI), {BUFF_NOUSED} }
 139
 140 #define proto_hdr_ah { \
 141         VIRTCHNL_PROTO_HDR_AH, \
 142         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI), {BUFF_NOUSED} }
 143
 144 #define proto_hdr_l2tpv3 { \
 145         VIRTCHNL_PROTO_HDR_L2TPV3, \
 146         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID), {BUFF_NOUSED} }
 147
 148 #define proto_hdr_pfcp { \
 149         VIRTCHNL_PROTO_HDR_PFCP, \
 150         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID), {BUFF_NOUSED} }
 151
 152 #define proto_hdr_gtpc { \
 153         VIRTCHNL_PROTO_HDR_GTPC, 0, {BUFF_NOUSED} }
 154
 155 #define TUNNEL_LEVEL_OUTER              0
 156 #define TUNNEL_LEVEL_INNER              1
 157
 158 /* proto_hdrs template */
 159 struct virtchnl_proto_hdrs outer_ipv4_tmplt = {
 160         TUNNEL_LEVEL_OUTER, 4,
 161         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4}
 162 };
 163
 164 struct virtchnl_proto_hdrs outer_ipv4_udp_tmplt = {
 165         TUNNEL_LEVEL_OUTER, 5,
 166         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 167          proto_hdr_ipv4_with_prot,
 168          proto_hdr_udp}
 169 };
 170
 171 struct virtchnl_proto_hdrs outer_ipv4_tcp_tmplt = {
 172         TUNNEL_LEVEL_OUTER, 5,
 173         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 174          proto_hdr_ipv4_with_prot,
 175          proto_hdr_tcp}
 176 };
 177
 178 struct virtchnl_proto_hdrs outer_ipv4_sctp_tmplt = {
 179         TUNNEL_LEVEL_OUTER, 5,
 180         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4,
 181          proto_hdr_sctp}
 182 };
 183
 184 struct virtchnl_proto_hdrs outer_ipv6_tmplt = {
 185         TUNNEL_LEVEL_OUTER, 4,
 186         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6}
 187 };
 188
 189 struct virtchnl_proto_hdrs outer_ipv6_udp_tmplt = {
 190         TUNNEL_LEVEL_OUTER, 5,
 191         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 192          proto_hdr_ipv6_with_prot,
 193          proto_hdr_udp}
 194 };
 195
 196 struct virtchnl_proto_hdrs outer_ipv6_tcp_tmplt = {
 197         TUNNEL_LEVEL_OUTER, 5,
 198         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 199          proto_hdr_ipv6_with_prot,
 200          proto_hdr_tcp}
 201 };
 202
 203 struct virtchnl_proto_hdrs outer_ipv6_sctp_tmplt = {
 204         TUNNEL_LEVEL_OUTER, 5,
 205         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6,
 206          proto_hdr_sctp}
 207 };
 208
 209 struct virtchnl_proto_hdrs inner_ipv4_tmplt = {
 210         TUNNEL_LEVEL_INNER, 1, {proto_hdr_ipv4}
 211 };
 212
 213 struct virtchnl_proto_hdrs inner_ipv4_udp_tmplt = {
 214         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4_with_prot, proto_hdr_udp}
 215 };
 216
 217 struct virtchnl_proto_hdrs inner_ipv4_tcp_tmplt = {
 218         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4_with_prot, proto_hdr_tcp}
 219 };
 220
 221 struct virtchnl_proto_hdrs inner_ipv4_sctp_tmplt = {
 222         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4, proto_hdr_sctp}
 223 };
 224
 225 struct virtchnl_proto_hdrs inner_ipv6_tmplt = {
 226         TUNNEL_LEVEL_INNER, 1, {proto_hdr_ipv6}
 227 };
 228
 229 struct virtchnl_proto_hdrs inner_ipv6_udp_tmplt = {
 230         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6_with_prot, proto_hdr_udp}
 231 };
 232
 233 struct virtchnl_proto_hdrs inner_ipv6_tcp_tmplt = {
 234         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6_with_prot, proto_hdr_tcp}
 235 };
 236
 237 struct virtchnl_proto_hdrs inner_ipv6_sctp_tmplt = {
 238         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6, proto_hdr_sctp}
 239 };
 240
 241 struct virtchnl_proto_hdrs ipv4_esp_tmplt = {
 242         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_esp}
 243 };
 244
 245 struct virtchnl_proto_hdrs ipv4_udp_esp_tmplt = {
 246         TUNNEL_LEVEL_OUTER, 3,
 247         {proto_hdr_ipv4, proto_hdr_udp, proto_hdr_esp}
 248 };
 249
 250 struct virtchnl_proto_hdrs ipv4_ah_tmplt = {
 251         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_ah}
 252 };
 253
 254 struct virtchnl_proto_hdrs ipv6_esp_tmplt = {
 255         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_esp}
 256 };
 257
 258 struct virtchnl_proto_hdrs ipv6_udp_esp_tmplt = {
 259         TUNNEL_LEVEL_OUTER, 3,
 260         {proto_hdr_ipv6, proto_hdr_udp, proto_hdr_esp}
 261 };
 262
 263 struct virtchnl_proto_hdrs ipv6_ah_tmplt = {
 264         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_ah}
 265 };
 266
 267 struct virtchnl_proto_hdrs ipv4_l2tpv3_tmplt = {
 268         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_l2tpv3}
 269 };
 270
 271 struct virtchnl_proto_hdrs ipv6_l2tpv3_tmplt = {
 272         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_l2tpv3}
 273 };
 274
 275 struct virtchnl_proto_hdrs ipv4_pfcp_tmplt = {
 276         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_pfcp}
 277 };
 278
 279 struct virtchnl_proto_hdrs ipv6_pfcp_tmplt = {
 280         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_pfcp}
 281 };
 282
 283 struct virtchnl_proto_hdrs ipv4_udp_gtpc_tmplt = {
 284         TUNNEL_LEVEL_OUTER, 3, {proto_hdr_ipv4, proto_hdr_udp, proto_hdr_gtpc}
 285 };
 286
 287 struct virtchnl_proto_hdrs ipv6_udp_gtpc_tmplt = {
 288         TUNNEL_LEVEL_OUTER, 3, {proto_hdr_ipv6, proto_hdr_udp, proto_hdr_gtpc}
 289 };
 290
 291 /* rss type super set */
 292
 293 /* IPv4 outer */
 294 #define IAVF_RSS_TYPE_OUTER_IPV4        (ETH_RSS_ETH | ETH_RSS_IPV4)
 295 #define IAVF_RSS_TYPE_OUTER_IPV4_UDP    (IAVF_RSS_TYPE_OUTER_IPV4 | \
 296                                          ETH_RSS_NONFRAG_IPV4_UDP)
 297 #define IAVF_RSS_TYPE_OUTER_IPV4_TCP    (IAVF_RSS_TYPE_OUTER_IPV4 | \
 298                                          ETH_RSS_NONFRAG_IPV4_TCP)
 299 #define IAVF_RSS_TYPE_OUTER_IPV4_SCTP   (IAVF_RSS_TYPE_OUTER_IPV4 | \
 300                                          ETH_RSS_NONFRAG_IPV4_SCTP)
 301 /* IPv6 outer */
 302 #define IAVF_RSS_TYPE_OUTER_IPV6        (ETH_RSS_ETH | ETH_RSS_IPV6)
 303 #define IAVF_RSS_TYPE_OUTER_IPV6_UDP    (IAVF_RSS_TYPE_OUTER_IPV6 | \
 304                                          ETH_RSS_NONFRAG_IPV6_UDP)
 305 #define IAVF_RSS_TYPE_OUTER_IPV6_TCP    (IAVF_RSS_TYPE_OUTER_IPV6 | \
 306                                          ETH_RSS_NONFRAG_IPV6_TCP)
 307 #define IAVF_RSS_TYPE_OUTER_IPV6_SCTP   (IAVF_RSS_TYPE_OUTER_IPV6 | \
 308                                          ETH_RSS_NONFRAG_IPV6_SCTP)
 309 /* VLAN IPV4 */
 310 #define IAVF_RSS_TYPE_VLAN_IPV4         (IAVF_RSS_TYPE_OUTER_IPV4 | \
 311                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 312 #define IAVF_RSS_TYPE_VLAN_IPV4_UDP     (IAVF_RSS_TYPE_OUTER_IPV4_UDP | \
 313                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 314 #define IAVF_RSS_TYPE_VLAN_IPV4_TCP     (IAVF_RSS_TYPE_OUTER_IPV4_TCP | \
 315                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 316 #define IAVF_RSS_TYPE_VLAN_IPV4_SCTP    (IAVF_RSS_TYPE_OUTER_IPV4_SCTP | \
 317                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 318 /* VLAN IPv6 */
 319 #define IAVF_RSS_TYPE_VLAN_IPV6         (IAVF_RSS_TYPE_OUTER_IPV6 | \
 320                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 321 #define IAVF_RSS_TYPE_VLAN_IPV6_UDP     (IAVF_RSS_TYPE_OUTER_IPV6_UDP | \
 322                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 323 #define IAVF_RSS_TYPE_VLAN_IPV6_TCP     (IAVF_RSS_TYPE_OUTER_IPV6_TCP | \
 324                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 325 #define IAVF_RSS_TYPE_VLAN_IPV6_SCTP    (IAVF_RSS_TYPE_OUTER_IPV6_SCTP | \
 326                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 327 /* IPv4 inner */
 328 #define IAVF_RSS_TYPE_INNER_IPV4        ETH_RSS_IPV4
 329 #define IAVF_RSS_TYPE_INNER_IPV4_UDP    (ETH_RSS_IPV4 | \
 330                                          ETH_RSS_NONFRAG_IPV4_UDP)
 331 #define IAVF_RSS_TYPE_INNER_IPV4_TCP    (ETH_RSS_IPV4 | \
 332                                          ETH_RSS_NONFRAG_IPV4_TCP)
 333 #define IAVF_RSS_TYPE_INNER_IPV4_SCTP   (ETH_RSS_IPV4 | \
 334                                          ETH_RSS_NONFRAG_IPV4_SCTP)
 335 /* IPv6 inner */
 336 #define IAVF_RSS_TYPE_INNER_IPV6        ETH_RSS_IPV6
 337 #define IAVF_RSS_TYPE_INNER_IPV6_UDP    (ETH_RSS_IPV6 | \
 338                                          ETH_RSS_NONFRAG_IPV6_UDP)
 339 #define IAVF_RSS_TYPE_INNER_IPV6_TCP    (ETH_RSS_IPV6 | \
 340                                          ETH_RSS_NONFRAG_IPV6_TCP)
 341 #define IAVF_RSS_TYPE_INNER_IPV6_SCTP   (ETH_RSS_IPV6 | \
 342                                          ETH_RSS_NONFRAG_IPV6_SCTP)
 343 /* GTPU IPv4 */
 344 #define IAVF_RSS_TYPE_GTPU_IPV4         (IAVF_RSS_TYPE_INNER_IPV4 | \
 345                                          ETH_RSS_GTPU)
 346 #define IAVF_RSS_TYPE_GTPU_IPV4_UDP     (IAVF_RSS_TYPE_INNER_IPV4_UDP | \
 347                                          ETH_RSS_GTPU)
 348 #define IAVF_RSS_TYPE_GTPU_IPV4_TCP     (IAVF_RSS_TYPE_INNER_IPV4_TCP | \
 349                                          ETH_RSS_GTPU)
 350 /* GTPU IPv6 */
 351 #define IAVF_RSS_TYPE_GTPU_IPV6         (IAVF_RSS_TYPE_INNER_IPV6 | \
 352                                          ETH_RSS_GTPU)
 353 #define IAVF_RSS_TYPE_GTPU_IPV6_UDP     (IAVF_RSS_TYPE_INNER_IPV6_UDP | \
 354                                          ETH_RSS_GTPU)
 355 #define IAVF_RSS_TYPE_GTPU_IPV6_TCP     (IAVF_RSS_TYPE_INNER_IPV6_TCP | \
 356                                          ETH_RSS_GTPU)
 357 /* ESP, AH, L2TPV3 and PFCP */
 358 #define IAVF_RSS_TYPE_IPV4_ESP          (ETH_RSS_ESP | ETH_RSS_IPV4)
 359 #define IAVF_RSS_TYPE_IPV4_AH           (ETH_RSS_AH | ETH_RSS_IPV4)
 360 #define IAVF_RSS_TYPE_IPV6_ESP          (ETH_RSS_ESP | ETH_RSS_IPV6)
 361 #define IAVF_RSS_TYPE_IPV6_AH           (ETH_RSS_AH | ETH_RSS_IPV6)
 362 #define IAVF_RSS_TYPE_IPV4_L2TPV3       (ETH_RSS_L2TPV3 | ETH_RSS_IPV4)
 363 #define IAVF_RSS_TYPE_IPV6_L2TPV3       (ETH_RSS_L2TPV3 | ETH_RSS_IPV6)
 364 #define IAVF_RSS_TYPE_IPV4_PFCP         (ETH_RSS_PFCP | ETH_RSS_IPV4)
 365 #define IAVF_RSS_TYPE_IPV6_PFCP         (ETH_RSS_PFCP | ETH_RSS_IPV6)
 366
 367 /**
 368  * Supported pattern for hash.
 369  * The first member is pattern item type,
 370  * the second member is input set mask,
 371  * the third member is virtchnl_proto_hdrs template
 372  */
 373 static struct iavf_pattern_match_item iavf_hash_pattern_list[] = {
 374         /* IPv4 */
 375         {iavf_pattern_eth_ipv4,                         IAVF_RSS_TYPE_OUTER_IPV4,       &outer_ipv4_tmplt},
 376         {iavf_pattern_eth_ipv4_udp,                     IAVF_RSS_TYPE_OUTER_IPV4_UDP,   &outer_ipv4_udp_tmplt},
 377         {iavf_pattern_eth_ipv4_tcp,                     IAVF_RSS_TYPE_OUTER_IPV4_TCP,   &outer_ipv4_tcp_tmplt},
 378         {iavf_pattern_eth_ipv4_sctp,                    IAVF_RSS_TYPE_OUTER_IPV4_SCTP,  &outer_ipv4_sctp_tmplt},
 379         {iavf_pattern_eth_vlan_ipv4,                    IAVF_RSS_TYPE_VLAN_IPV4,        &outer_ipv4_tmplt},
 380         {iavf_pattern_eth_vlan_ipv4_udp,                IAVF_RSS_TYPE_VLAN_IPV4_UDP,    &outer_ipv4_udp_tmplt},
 381         {iavf_pattern_eth_vlan_ipv4_tcp,                IAVF_RSS_TYPE_VLAN_IPV4_TCP,    &outer_ipv4_tcp_tmplt},
 382         {iavf_pattern_eth_vlan_ipv4_sctp,               IAVF_RSS_TYPE_VLAN_IPV4_SCTP,   &outer_ipv4_sctp_tmplt},
 383         {iavf_pattern_eth_ipv4_gtpu,                    ETH_RSS_IPV4,                   &outer_ipv4_udp_tmplt},
 384         {iavf_pattern_eth_ipv4_gtpu_ipv4,               IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 385         {iavf_pattern_eth_ipv4_gtpu_ipv4_udp,           IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 386         {iavf_pattern_eth_ipv4_gtpu_ipv4_tcp,           IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 387         {iavf_pattern_eth_ipv6_gtpu_ipv4,               IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 388         {iavf_pattern_eth_ipv6_gtpu_ipv4_udp,           IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 389         {iavf_pattern_eth_ipv6_gtpu_ipv4_tcp,           IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 390         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4,            IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 391         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4_udp,        IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 392         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4_tcp,        IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 393         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4,            IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 394         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4_udp,        IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 395         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4_tcp,        IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 396         {iavf_pattern_eth_ipv4_esp,                     IAVF_RSS_TYPE_IPV4_ESP,         &ipv4_esp_tmplt},
 397         {iavf_pattern_eth_ipv4_udp_esp,                 IAVF_RSS_TYPE_IPV4_ESP,         &ipv4_udp_esp_tmplt},
 398         {iavf_pattern_eth_ipv4_ah,                      IAVF_RSS_TYPE_IPV4_AH,          &ipv4_ah_tmplt},
 399         {iavf_pattern_eth_ipv4_l2tpv3,                  IAVF_RSS_TYPE_IPV4_L2TPV3,      &ipv4_l2tpv3_tmplt},
 400         {iavf_pattern_eth_ipv4_pfcp,                    IAVF_RSS_TYPE_IPV4_PFCP,        &ipv4_pfcp_tmplt},
 401         {iavf_pattern_eth_ipv4_gtpc,                    ETH_RSS_IPV4,                   &ipv4_udp_gtpc_tmplt},
 402         /* IPv6 */
 403         {iavf_pattern_eth_ipv6,                         IAVF_RSS_TYPE_OUTER_IPV6,       &outer_ipv6_tmplt},
 404         {iavf_pattern_eth_ipv6_udp,                     IAVF_RSS_TYPE_OUTER_IPV6_UDP,   &outer_ipv6_udp_tmplt},
 405         {iavf_pattern_eth_ipv6_tcp,                     IAVF_RSS_TYPE_OUTER_IPV6_TCP,   &outer_ipv6_tcp_tmplt},
 406         {iavf_pattern_eth_ipv6_sctp,                    IAVF_RSS_TYPE_OUTER_IPV6_SCTP,  &outer_ipv6_sctp_tmplt},
 407         {iavf_pattern_eth_vlan_ipv6,                    IAVF_RSS_TYPE_VLAN_IPV6,        &outer_ipv6_tmplt},
 408         {iavf_pattern_eth_vlan_ipv6_udp,                IAVF_RSS_TYPE_VLAN_IPV6_UDP,    &outer_ipv6_udp_tmplt},
 409         {iavf_pattern_eth_vlan_ipv6_tcp,                IAVF_RSS_TYPE_VLAN_IPV6_TCP,    &outer_ipv6_tcp_tmplt},
 410         {iavf_pattern_eth_vlan_ipv6_sctp,               IAVF_RSS_TYPE_VLAN_IPV6_SCTP,   &outer_ipv6_sctp_tmplt},
 411         {iavf_pattern_eth_ipv6_gtpu,                    ETH_RSS_IPV6,                   &outer_ipv6_udp_tmplt},
 412         {iavf_pattern_eth_ipv4_gtpu_ipv6,               IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 413         {iavf_pattern_eth_ipv4_gtpu_ipv6_udp,           IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 414         {iavf_pattern_eth_ipv4_gtpu_ipv6_tcp,           IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 415         {iavf_pattern_eth_ipv6_gtpu_ipv6,               IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 416         {iavf_pattern_eth_ipv6_gtpu_ipv6_udp,           IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 417         {iavf_pattern_eth_ipv6_gtpu_ipv6_tcp,           IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 418         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6,            IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 419         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6_udp,        IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 420         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6_tcp,        IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 421         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6,            IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 422         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6_udp,        IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 423         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6_tcp,        IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 424         {iavf_pattern_eth_ipv6_esp,                     IAVF_RSS_TYPE_IPV6_ESP,         &ipv6_esp_tmplt},
 425         {iavf_pattern_eth_ipv6_udp_esp,                 IAVF_RSS_TYPE_IPV6_ESP,         &ipv6_udp_esp_tmplt},
 426         {iavf_pattern_eth_ipv6_ah,                      IAVF_RSS_TYPE_IPV6_AH,          &ipv6_ah_tmplt},
 427         {iavf_pattern_eth_ipv6_l2tpv3,                  IAVF_RSS_TYPE_IPV6_L2TPV3,      &ipv6_l2tpv3_tmplt},
 428         {iavf_pattern_eth_ipv6_pfcp,                    IAVF_RSS_TYPE_IPV6_PFCP,        &ipv6_pfcp_tmplt},
 429         {iavf_pattern_eth_ipv6_gtpc,                    ETH_RSS_IPV6,                   &ipv6_udp_gtpc_tmplt},
 430 };
 431
 432 struct virtchnl_proto_hdrs *iavf_hash_default_hdrs[] = {
 433         &inner_ipv4_tmplt,
 434         &inner_ipv4_udp_tmplt,
 435         &inner_ipv4_tcp_tmplt,
 436         &inner_ipv4_sctp_tmplt,
 437         &inner_ipv6_tmplt,
 438         &inner_ipv6_udp_tmplt,
 439         &inner_ipv6_tcp_tmplt,
 440         &inner_ipv6_sctp_tmplt,
 441 };
 442
 443 static struct iavf_flow_engine iavf_hash_engine = {
 444         .init = iavf_hash_init,
 445         .create = iavf_hash_create,
 446         .destroy = iavf_hash_destroy,
 447         .uninit = iavf_hash_uninit,
 448         .free = iavf_hash_free,
 449         .type = IAVF_FLOW_ENGINE_HASH,
 450 };
 451
 452 /* Register parser for comms package. */
 453 static struct iavf_flow_parser iavf_hash_parser = {
 454         .engine = &iavf_hash_engine,
 455         .array = iavf_hash_pattern_list,
 456         .array_len = RTE_DIM(iavf_hash_pattern_list),
 457         .parse_pattern_action = iavf_hash_parse_pattern_action,
 458         .stage = IAVF_FLOW_STAGE_RSS,
 459 };
 460
 461 static int
 462 iavf_hash_default_set(struct iavf_adapter *ad, bool add)
 463 {
 464         struct virtchnl_rss_cfg *rss_cfg;
 465         uint16_t i;
 466
 467         rss_cfg = rte_zmalloc("iavf rss rule",
 468                               sizeof(struct virtchnl_rss_cfg), 0);
 469         if (!rss_cfg)
 470                 return -ENOMEM;
 471
 472         for (i = 0; i < RTE_DIM(iavf_hash_default_hdrs); i++) {
 473                 rss_cfg->proto_hdrs = *iavf_hash_default_hdrs[i];
 474                 rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
 475
 476                 iavf_add_del_rss_cfg(ad, rss_cfg, add);
 477         }
 478
 479         return 0;
 480 }
 481
 482 RTE_INIT(iavf_hash_engine_init)
 483 {
 484         struct iavf_flow_engine *engine = &iavf_hash_engine;
 485
 486         iavf_register_flow_engine(engine);
 487 }
 488
 489 static int
 490 iavf_hash_init(struct iavf_adapter *ad)
 491 {
 492         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
 493         struct iavf_flow_parser *parser;
 494         int ret;
 495
 496         if (vf->vf_reset)
 497                 return -EIO;
 498
 499         if (!vf->vf_res)
 500                 return -EINVAL;
 501
 502         if (!(vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF))
 503                 return -ENOTSUP;
 504
 505         parser = &iavf_hash_parser;
 506
 507         ret = iavf_register_parser(parser, ad);
 508         if (ret) {
 509                 PMD_DRV_LOG(ERR, "fail to register hash parser");
 510                 return ret;
 511         }
 512
 513         ret = iavf_hash_default_set(ad, true);
 514         if (ret) {
 515                 PMD_DRV_LOG(ERR, "fail to set default RSS");
 516                 iavf_unregister_parser(parser, ad);
 517         }
 518
 519         return ret;
 520 }
 521
 522 static int
 523 iavf_hash_parse_pattern(const struct rte_flow_item pattern[], uint64_t *phint,
 524                         struct rte_flow_error *error)
 525 {
 526         const struct rte_flow_item *item = pattern;
 527         const struct rte_flow_item_gtp_psc *psc;
 528
 529         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 530                 if (item->last) {
 531                         rte_flow_error_set(error, EINVAL,
 532                                            RTE_FLOW_ERROR_TYPE_ITEM, item,
 533                                            "Not support range");
 534                         return -rte_errno;
 535                 }
 536
 537                 switch (item->type) {
 538                 case RTE_FLOW_ITEM_TYPE_IPV4:
 539                         if (!(*phint & IAVF_PHINT_GTPU_MSK))
 540                                 *phint |= IAVF_PHINT_OUTER_IPV4;
 541                         break;
 542                 case RTE_FLOW_ITEM_TYPE_IPV6:
 543                         if (!(*phint & IAVF_PHINT_GTPU_MSK))
 544                                 *phint |= IAVF_PHINT_OUTER_IPV6;
 545                         break;
 546                 case RTE_FLOW_ITEM_TYPE_GTPU:
 547                         *phint |= IAVF_PHINT_GTPU;
 548                         break;
 549                 case RTE_FLOW_ITEM_TYPE_GTP_PSC:
 550                         *phint |= IAVF_PHINT_GTPU_EH;
 551                         psc = item->spec;
 552                         if (!psc)
 553                                 break;
 554                         else if (psc->pdu_type == IAVF_GTPU_EH_UPLINK)
 555                                 *phint |= IAVF_PHINT_GTPU_EH_UP;
 556                         else if (psc->pdu_type == IAVF_GTPU_EH_DWNLINK)
 557                                 *phint |= IAVF_PHINT_GTPU_EH_DWN;
 558                         break;
 559                 default:
 560                         break;
 561                 }
 562         }
 563
 564         return 0;
 565 }
 566
 567 #define REFINE_PROTO_FLD(op, fld) \
 568         VIRTCHNL_##op##_PROTO_HDR_FIELD(hdr, VIRTCHNL_PROTO_HDR_##fld)
 569 #define REPALCE_PROTO_FLD(fld_1, fld_2) \
 570 do { \
 571         REFINE_PROTO_FLD(DEL, fld_1);   \
 572         REFINE_PROTO_FLD(ADD, fld_2);   \
 573 } while (0)
 574
 575 /* refine proto hdrs base on l2, l3, l4 rss type */
 576 static void
 577 iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 578                             uint64_t rss_type)
 579 {
 580         struct virtchnl_proto_hdr *hdr;
 581         int i;
 582
 583         for (i = 0; i < proto_hdrs->count; i++) {
 584                 hdr = &proto_hdrs->proto_hdr[i];
 585                 switch (hdr->type) {
 586                 case VIRTCHNL_PROTO_HDR_ETH:
 587                         if (!(rss_type & ETH_RSS_ETH))
 588                                 hdr->field_selector = 0;
 589                         else if (rss_type & ETH_RSS_L2_SRC_ONLY)
 590                                 REFINE_PROTO_FLD(DEL, ETH_DST);
 591                         else if (rss_type & ETH_RSS_L2_DST_ONLY)
 592                                 REFINE_PROTO_FLD(DEL, ETH_SRC);
 593                         break;
 594                 case VIRTCHNL_PROTO_HDR_IPV4:
 595                         if (rss_type &
 596                             (ETH_RSS_IPV4 |
 597                              ETH_RSS_NONFRAG_IPV4_UDP |
 598                              ETH_RSS_NONFRAG_IPV4_TCP |
 599                              ETH_RSS_NONFRAG_IPV4_SCTP)) {
 600                                 if (rss_type & ETH_RSS_L3_SRC_ONLY) {
 601                                         REFINE_PROTO_FLD(DEL, IPV4_DST);
 602                                 } else if (rss_type & ETH_RSS_L3_DST_ONLY) {
 603                                         REFINE_PROTO_FLD(DEL, IPV4_SRC);
 604                                 } else if (rss_type &
 605                                          (ETH_RSS_L4_SRC_ONLY |
 606                                           ETH_RSS_L4_DST_ONLY)) {
 607                                         REFINE_PROTO_FLD(DEL, IPV4_DST);
 608                                         REFINE_PROTO_FLD(DEL, IPV4_SRC);
 609                                 }
 610                         } else {
 611                                 hdr->field_selector = 0;
 612                         }
 613                         break;
 614                 case VIRTCHNL_PROTO_HDR_IPV6:
 615                         if (rss_type &
 616                             (ETH_RSS_IPV6 |
 617                              ETH_RSS_NONFRAG_IPV6_UDP |
 618                              ETH_RSS_NONFRAG_IPV6_TCP |
 619                              ETH_RSS_NONFRAG_IPV6_SCTP)) {
 620                                 if (rss_type & ETH_RSS_L3_SRC_ONLY) {
 621                                         REFINE_PROTO_FLD(DEL, IPV6_DST);
 622                                 } else if (rss_type & ETH_RSS_L3_DST_ONLY) {
 623                                         REFINE_PROTO_FLD(DEL, IPV6_SRC);
 624                                 } else if (rss_type &
 625                                          (ETH_RSS_L4_SRC_ONLY |
 626                                           ETH_RSS_L4_DST_ONLY)) {
 627                                         REFINE_PROTO_FLD(DEL, IPV6_DST);
 628                                         REFINE_PROTO_FLD(DEL, IPV6_SRC);
 629                                 }
 630                         } else {
 631                                 hdr->field_selector = 0;
 632                         }
 633                         if (rss_type & RTE_ETH_RSS_L3_PRE64) {
 634                                 if (REFINE_PROTO_FLD(TEST, IPV6_SRC))
 635                                         REPALCE_PROTO_FLD(IPV6_SRC,
 636                                                           IPV6_PREFIX64_SRC);
 637                                 if (REFINE_PROTO_FLD(TEST, IPV6_DST))
 638                                         REPALCE_PROTO_FLD(IPV6_DST,
 639                                                           IPV6_PREFIX64_DST);
 640                         }
 641                         break;
 642                 case VIRTCHNL_PROTO_HDR_UDP:
 643                         if (rss_type &
 644                             (ETH_RSS_NONFRAG_IPV4_UDP |
 645                              ETH_RSS_NONFRAG_IPV6_UDP)) {
 646                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 647                                         REFINE_PROTO_FLD(DEL, UDP_DST_PORT);
 648                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 649                                         REFINE_PROTO_FLD(DEL, UDP_SRC_PORT);
 650                                 else if (rss_type &
 651                                          (ETH_RSS_L3_SRC_ONLY |
 652                                           ETH_RSS_L3_DST_ONLY))
 653                                         hdr->field_selector = 0;
 654                         } else {
 655                                 hdr->field_selector = 0;
 656                         }
 657                         break;
 658                 case VIRTCHNL_PROTO_HDR_TCP:
 659                         if (rss_type &
 660                             (ETH_RSS_NONFRAG_IPV4_TCP |
 661                              ETH_RSS_NONFRAG_IPV6_TCP)) {
 662                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 663                                         REFINE_PROTO_FLD(DEL, TCP_DST_PORT);
 664                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 665                                         REFINE_PROTO_FLD(DEL, TCP_SRC_PORT);
 666                                 else if (rss_type &
 667                                          (ETH_RSS_L3_SRC_ONLY |
 668                                           ETH_RSS_L3_DST_ONLY))
 669                                         hdr->field_selector = 0;
 670                         } else {
 671                                 hdr->field_selector = 0;
 672                         }
 673                         break;
 674                 case VIRTCHNL_PROTO_HDR_SCTP:
 675                         if (rss_type &
 676                             (ETH_RSS_NONFRAG_IPV4_SCTP |
 677                              ETH_RSS_NONFRAG_IPV6_SCTP)) {
 678                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 679                                         REFINE_PROTO_FLD(DEL, SCTP_DST_PORT);
 680                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 681                                         REFINE_PROTO_FLD(DEL, SCTP_SRC_PORT);
 682                                 else if (rss_type &
 683                                          (ETH_RSS_L3_SRC_ONLY |
 684                                           ETH_RSS_L3_DST_ONLY))
 685                                         hdr->field_selector = 0;
 686                         } else {
 687                                 hdr->field_selector = 0;
 688                         }
 689                         break;
 690                 case VIRTCHNL_PROTO_HDR_S_VLAN:
 691                         if (!(rss_type & ETH_RSS_S_VLAN))
 692                                 hdr->field_selector = 0;
 693                         break;
 694                 case VIRTCHNL_PROTO_HDR_C_VLAN:
 695                         if (!(rss_type & ETH_RSS_C_VLAN))
 696                                 hdr->field_selector = 0;
 697                         break;
 698                 case VIRTCHNL_PROTO_HDR_L2TPV3:
 699                         if (!(rss_type & ETH_RSS_L2TPV3))
 700                                 hdr->field_selector = 0;
 701                         break;
 702                 case VIRTCHNL_PROTO_HDR_ESP:
 703                         if (!(rss_type & ETH_RSS_ESP))
 704                                 hdr->field_selector = 0;
 705                         break;
 706                 case VIRTCHNL_PROTO_HDR_AH:
 707                         if (!(rss_type & ETH_RSS_AH))
 708                                 hdr->field_selector = 0;
 709                         break;
 710                 case VIRTCHNL_PROTO_HDR_PFCP:
 711                         if (!(rss_type & ETH_RSS_PFCP))
 712                                 hdr->field_selector = 0;
 713                         break;
 714                 default:
 715                         break;
 716                 }
 717         }
 718 }
 719
 720 /* refine proto hdrs base on gtpu rss type */
 721 static void
 722 iavf_refine_proto_hdrs_gtpu(struct virtchnl_proto_hdrs *proto_hdrs,
 723                             uint64_t rss_type)
 724 {
 725         struct virtchnl_proto_hdr *hdr;
 726         int i;
 727
 728         if (!(rss_type & ETH_RSS_GTPU))
 729                 return;
 730
 731         for (i = 0; i < proto_hdrs->count; i++) {
 732                 hdr = &proto_hdrs->proto_hdr[i];
 733                 switch (hdr->type) {
 734                 case VIRTCHNL_PROTO_HDR_GTPU_IP:
 735                         REFINE_PROTO_FLD(ADD, GTPU_IP_TEID);
 736                         break;
 737                 default:
 738                         break;
 739                 }
 740         }
 741 }
 742
 743 static void
 744 iavf_refine_proto_hdrs_by_pattern(struct virtchnl_proto_hdrs *proto_hdrs,
 745                                   uint64_t phint)
 746 {
 747         struct virtchnl_proto_hdr *hdr1;
 748         struct virtchnl_proto_hdr *hdr2;
 749         int i, shift_count = 1;
 750
 751         if (!(phint & IAVF_PHINT_GTPU_MSK))
 752                 return;
 753
 754         if (phint & IAVF_PHINT_LAYERS_MSK)
 755                 shift_count++;
 756
 757         if (proto_hdrs->tunnel_level == TUNNEL_LEVEL_INNER) {
 758                 /* shift headers layer */
 759                 for (i = proto_hdrs->count - 1 + shift_count;
 760                      i > shift_count - 1; i--) {
 761                         hdr1 = &proto_hdrs->proto_hdr[i];
 762                         hdr2 = &proto_hdrs->proto_hdr[i - shift_count];
 763                         *hdr1 = *hdr2;
 764                 }
 765
 766                 if (shift_count == 1) {
 767                         /* adding gtpu header at layer 0 */
 768                         hdr1 = &proto_hdrs->proto_hdr[0];
 769                 } else {
 770                         /* adding gtpu header and outer ip header */
 771                         hdr1 = &proto_hdrs->proto_hdr[1];
 772                         hdr2 = &proto_hdrs->proto_hdr[0];
 773                         hdr2->field_selector = 0;
 774                         proto_hdrs->count++;
 775                         proto_hdrs->tunnel_level = TUNNEL_LEVEL_OUTER;
 776
 777                         if (phint & IAVF_PHINT_OUTER_IPV4)
 778                                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr2, IPV4);
 779                         else if (phint & IAVF_PHINT_OUTER_IPV6)
 780                                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr2, IPV6);
 781                 }
 782         } else {
 783                 hdr1 = &proto_hdrs->proto_hdr[proto_hdrs->count];
 784         }
 785
 786         hdr1->field_selector = 0;
 787         proto_hdrs->count++;
 788
 789         if (phint & IAVF_PHINT_GTPU_EH_DWN)
 790                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_DWN);
 791         else if (phint & IAVF_PHINT_GTPU_EH_UP)
 792                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_UP);
 793         else if (phint & IAVF_PHINT_GTPU_EH)
 794                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH);
 795         else if (phint & IAVF_PHINT_GTPU)
 796                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_IP);
 797 }
 798
 799 static void iavf_refine_proto_hdrs(struct virtchnl_proto_hdrs *proto_hdrs,
 800                                    uint64_t rss_type, uint64_t phint)
 801 {
 802         iavf_refine_proto_hdrs_l234(proto_hdrs, rss_type);
 803         iavf_refine_proto_hdrs_by_pattern(proto_hdrs, phint);
 804         iavf_refine_proto_hdrs_gtpu(proto_hdrs, rss_type);
 805 }
 806
 807 static uint64_t invalid_rss_comb[] = {
 808         ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP,
 809         ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP,
 810         RTE_ETH_RSS_L3_PRE32 | RTE_ETH_RSS_L3_PRE40 |
 811         RTE_ETH_RSS_L3_PRE48 | RTE_ETH_RSS_L3_PRE56 |
 812         RTE_ETH_RSS_L3_PRE96
 813 };
 814
 815 struct rss_attr_type {
 816         uint64_t attr;
 817         uint64_t type;
 818 };
 819
 820 #define VALID_RSS_IPV4_L4       (ETH_RSS_NONFRAG_IPV4_UDP       | \
 821                                  ETH_RSS_NONFRAG_IPV4_TCP       | \
 822                                  ETH_RSS_NONFRAG_IPV4_SCTP)
 823
 824 #define VALID_RSS_IPV6_L4       (ETH_RSS_NONFRAG_IPV6_UDP       | \
 825                                  ETH_RSS_NONFRAG_IPV6_TCP       | \
 826                                  ETH_RSS_NONFRAG_IPV6_SCTP)
 827
 828 #define VALID_RSS_IPV4          (ETH_RSS_IPV4 | VALID_RSS_IPV4_L4)
 829 #define VALID_RSS_IPV6          (ETH_RSS_IPV6 | VALID_RSS_IPV6_L4)
 830 #define VALID_RSS_L3            (VALID_RSS_IPV4 | VALID_RSS_IPV6)
 831 #define VALID_RSS_L4            (VALID_RSS_IPV4_L4 | VALID_RSS_IPV6_L4)
 832
 833 #define VALID_RSS_ATTR          (ETH_RSS_L3_SRC_ONLY    | \
 834                                  ETH_RSS_L3_DST_ONLY    | \
 835                                  ETH_RSS_L4_SRC_ONLY    | \
 836                                  ETH_RSS_L4_DST_ONLY    | \
 837                                  ETH_RSS_L2_SRC_ONLY    | \
 838                                  ETH_RSS_L2_DST_ONLY    | \
 839                                  RTE_ETH_RSS_L3_PRE64)
 840
 841 #define INVALID_RSS_ATTR        (RTE_ETH_RSS_L3_PRE32   | \
 842                                  RTE_ETH_RSS_L3_PRE40   | \
 843                                  RTE_ETH_RSS_L3_PRE48   | \
 844                                  RTE_ETH_RSS_L3_PRE56   | \
 845                                  RTE_ETH_RSS_L3_PRE96)
 846
 847 static struct rss_attr_type rss_attr_to_valid_type[] = {
 848         {ETH_RSS_L2_SRC_ONLY | ETH_RSS_L2_DST_ONLY,     ETH_RSS_ETH},
 849         {ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY,     VALID_RSS_L3},
 850         {ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY,     VALID_RSS_L4},
 851         /* current ipv6 prefix only supports prefix 64 bits*/
 852         {RTE_ETH_RSS_L3_PRE64,                          VALID_RSS_IPV6},
 853         {INVALID_RSS_ATTR,                              0}
 854 };
 855
 856 static bool
 857 iavf_any_invalid_rss_type(enum rte_eth_hash_function rss_func,
 858                           uint64_t rss_type, uint64_t allow_rss_type)
 859 {
 860         uint32_t i;
 861
 862         /**
 863          * Check if l3/l4 SRC/DST_ONLY is set for SYMMETRIC_TOEPLITZ
 864          * hash function.
 865          */
 866         if (rss_func == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
 867                 if (rss_type & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY |
 868                     ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY))
 869                         return true;
 870         }
 871
 872         /* check invalid combination */
 873         for (i = 0; i < RTE_DIM(invalid_rss_comb); i++) {
 874                 if (__builtin_popcountll(rss_type & invalid_rss_comb[i]) > 1)
 875                         return true;
 876         }
 877
 878         /* check invalid RSS attribute */
 879         for (i = 0; i < RTE_DIM(rss_attr_to_valid_type); i++) {
 880                 struct rss_attr_type *rat = &rss_attr_to_valid_type[i];
 881
 882                 if (rat->attr & rss_type && !(rat->type & rss_type))
 883                         return true;
 884         }
 885
 886         /* check not allowed RSS type */
 887         rss_type &= ~VALID_RSS_ATTR;
 888
 889         return ((rss_type & allow_rss_type) != rss_type);
 890 }
 891
 892 static int
 893 iavf_hash_parse_action(struct iavf_pattern_match_item *match_item,
 894                        const struct rte_flow_action actions[],
 895                        uint64_t pattern_hint, void **meta,
 896                        struct rte_flow_error *error)
 897 {
 898         struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)*meta;
 899         struct virtchnl_proto_hdrs *proto_hdrs;
 900         enum rte_flow_action_type action_type;
 901         const struct rte_flow_action_rss *rss;
 902         const struct rte_flow_action *action;
 903         uint64_t rss_type;
 904
 905         /* Supported action is RSS. */
 906         for (action = actions; action->type !=
 907                 RTE_FLOW_ACTION_TYPE_END; action++) {
 908                 action_type = action->type;
 909                 switch (action_type) {
 910                 case RTE_FLOW_ACTION_TYPE_RSS:
 911                         rss = action->conf;
 912                         rss_type = rss->types;
 913
 914                         if (rss->func ==
 915                             RTE_ETH_HASH_FUNCTION_SIMPLE_XOR){
 916                                 rss_meta->rss_algorithm =
 917                                         VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC;
 918                                 return rte_flow_error_set(error, ENOTSUP,
 919                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 920                                         "function simple_xor is not supported");
 921                         } else if (rss->func ==
 922                                    RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
 923                                 rss_meta->rss_algorithm =
 924                                         VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
 925                         } else {
 926                                 rss_meta->rss_algorithm =
 927                                         VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
 928                         }
 929
 930                         if (rss->level)
 931                                 return rte_flow_error_set(error, ENOTSUP,
 932                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 933                                         "a nonzero RSS encapsulation level is not supported");
 934
 935                         if (rss->key_len)
 936                                 return rte_flow_error_set(error, ENOTSUP,
 937                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 938                                         "a nonzero RSS key_len is not supported");
 939
 940                         if (rss->queue_num)
 941                                 return rte_flow_error_set(error, ENOTSUP,
 942                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 943                                         "a non-NULL RSS queue is not supported");
 944
 945                         /**
 946                          * Check simultaneous use of SRC_ONLY and DST_ONLY
 947                          * of the same level.
 948                          */
 949                         rss_type = rte_eth_rss_hf_refine(rss_type);
 950
 951                         if (iavf_any_invalid_rss_type(rss->func, rss_type,
 952                                         match_item->input_set_mask))
 953                                 return rte_flow_error_set(error, ENOTSUP,
 954                                                 RTE_FLOW_ERROR_TYPE_ACTION,
 955                                                 action, "RSS type not supported");
 956                         proto_hdrs = match_item->meta;
 957                         rss_meta->proto_hdrs = *proto_hdrs;
 958                         iavf_refine_proto_hdrs(&rss_meta->proto_hdrs,
 959                                                rss_type, pattern_hint);
 960                         break;
 961
 962                 case RTE_FLOW_ACTION_TYPE_END:
 963                         break;
 964
 965                 default:
 966                         rte_flow_error_set(error, EINVAL,
 967                                            RTE_FLOW_ERROR_TYPE_ACTION, action,
 968                                            "Invalid action.");
 969                         return -rte_errno;
 970                 }
 971         }
 972
 973         return 0;
 974 }
 975
 976 static int
 977 iavf_hash_parse_pattern_action(__rte_unused struct iavf_adapter *ad,
 978                                struct iavf_pattern_match_item *array,
 979                                uint32_t array_len,
 980                                const struct rte_flow_item pattern[],
 981                                const struct rte_flow_action actions[],
 982                                void **meta,
 983                                struct rte_flow_error *error)
 984 {
 985         struct iavf_pattern_match_item *pattern_match_item;
 986         struct iavf_rss_meta *rss_meta_ptr;
 987         uint64_t phint = IAVF_PHINT_NONE;
 988         int ret = 0;
 989
 990         rss_meta_ptr = rte_zmalloc(NULL, sizeof(*rss_meta_ptr), 0);
 991         if (!rss_meta_ptr) {
 992                 rte_flow_error_set(error, EINVAL,
 993                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 994                                    "No memory for rss_meta_ptr");
 995                 return -ENOMEM;
 996         }
 997
 998         /* Check rss supported pattern and find matched pattern. */
 999         pattern_match_item =
1000                 iavf_search_pattern_match_item(pattern, array, array_len,
1001                                                error);
1002         if (!pattern_match_item) {
1003                 ret = -rte_errno;
1004                 goto error;
1005         }
1006
1007         ret = iavf_hash_parse_pattern(pattern, &phint, error);
1008         if (ret)
1009                 goto error;
1010
1011         ret = iavf_hash_parse_action(pattern_match_item, actions, phint,
1012                                      (void **)&rss_meta_ptr, error);
1013
1014 error:
1015         if (!ret && meta)
1016                 *meta = rss_meta_ptr;
1017         else
1018                 rte_free(rss_meta_ptr);
1019
1020         rte_free(pattern_match_item);
1021
1022         return ret;
1023 }
1024
1025 static int
1026 iavf_hash_create(__rte_unused struct iavf_adapter *ad,
1027                  __rte_unused struct rte_flow *flow, void *meta,
1028                  __rte_unused struct rte_flow_error *error)
1029 {
1030         struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)meta;
1031         struct virtchnl_rss_cfg *rss_cfg;
1032         int ret = 0;
1033
1034         rss_cfg = rte_zmalloc("iavf rss rule",
1035                               sizeof(struct virtchnl_rss_cfg), 0);
1036         if (!rss_cfg) {
1037                 rte_flow_error_set(error, EINVAL,
1038                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1039                                    "No memory for rss rule");
1040                 return -ENOMEM;
1041         }
1042
1043         rss_cfg->proto_hdrs = rss_meta->proto_hdrs;
1044         rss_cfg->rss_algorithm = rss_meta->rss_algorithm;
1045
1046         ret = iavf_add_del_rss_cfg(ad, rss_cfg, true);
1047         if (!ret) {
1048                 flow->rule = rss_cfg;
1049         } else {
1050                 PMD_DRV_LOG(ERR, "fail to add RSS configure");
1051                 rte_flow_error_set(error, -ret,
1052                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1053                                    "Failed to add rss rule.");
1054                 rte_free(rss_cfg);
1055                 return -rte_errno;
1056         }
1057
1058         rte_free(meta);
1059
1060         return ret;
1061 }
1062
1063 static int
1064 iavf_hash_destroy(__rte_unused struct iavf_adapter *ad,
1065                   struct rte_flow *flow,
1066                   __rte_unused struct rte_flow_error *error)
1067 {
1068         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
1069         struct virtchnl_rss_cfg *rss_cfg;
1070         int ret = 0;
1071
1072         if (vf->vf_reset)
1073                 return 0;
1074
1075         rss_cfg = (struct virtchnl_rss_cfg *)flow->rule;
1076
1077         ret = iavf_add_del_rss_cfg(ad, rss_cfg, false);
1078         if (ret) {
1079                 PMD_DRV_LOG(ERR, "fail to del RSS configure");
1080                 rte_flow_error_set(error, -ret,
1081                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1082                                    "Failed to delete rss rule.");
1083                 return -rte_errno;
1084         }
1085         return ret;
1086 }
1087
1088 static void
1089 iavf_hash_uninit(struct iavf_adapter *ad)
1090 {
1091         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
1092
1093         if (vf->vf_reset)
1094                 return;
1095
1096         if (iavf_hash_default_set(ad, false))
1097                 PMD_DRV_LOG(ERR, "fail to delete default RSS");
1098
1099         iavf_unregister_parser(&iavf_hash_parser, ad);
1100 }
1101
1102 static void
1103 iavf_hash_free(struct rte_flow *flow)
1104 {
1105         rte_free(flow->rule);
1106 }