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 proto_hdr_ecpri { \
 156         VIRTCHNL_PROTO_HDR_ECPRI, \
 157         FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ECPRI_PC_RTC_ID), {BUFF_NOUSED} }
 158
 159 #define TUNNEL_LEVEL_OUTER              0
 160 #define TUNNEL_LEVEL_INNER              1
 161
 162 /* proto_hdrs template */
 163 struct virtchnl_proto_hdrs outer_ipv4_tmplt = {
 164         TUNNEL_LEVEL_OUTER, 4,
 165         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4}
 166 };
 167
 168 struct virtchnl_proto_hdrs outer_ipv4_udp_tmplt = {
 169         TUNNEL_LEVEL_OUTER, 5,
 170         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 171          proto_hdr_ipv4_with_prot,
 172          proto_hdr_udp}
 173 };
 174
 175 struct virtchnl_proto_hdrs outer_ipv4_tcp_tmplt = {
 176         TUNNEL_LEVEL_OUTER, 5,
 177         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 178          proto_hdr_ipv4_with_prot,
 179          proto_hdr_tcp}
 180 };
 181
 182 struct virtchnl_proto_hdrs outer_ipv4_sctp_tmplt = {
 183         TUNNEL_LEVEL_OUTER, 5,
 184         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4,
 185          proto_hdr_sctp}
 186 };
 187
 188 struct virtchnl_proto_hdrs outer_ipv6_tmplt = {
 189         TUNNEL_LEVEL_OUTER, 4,
 190         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6}
 191 };
 192
 193 struct virtchnl_proto_hdrs outer_ipv6_udp_tmplt = {
 194         TUNNEL_LEVEL_OUTER, 5,
 195         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 196          proto_hdr_ipv6_with_prot,
 197          proto_hdr_udp}
 198 };
 199
 200 struct virtchnl_proto_hdrs outer_ipv6_tcp_tmplt = {
 201         TUNNEL_LEVEL_OUTER, 5,
 202         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
 203          proto_hdr_ipv6_with_prot,
 204          proto_hdr_tcp}
 205 };
 206
 207 struct virtchnl_proto_hdrs outer_ipv6_sctp_tmplt = {
 208         TUNNEL_LEVEL_OUTER, 5,
 209         {proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6,
 210          proto_hdr_sctp}
 211 };
 212
 213 struct virtchnl_proto_hdrs inner_ipv4_tmplt = {
 214         TUNNEL_LEVEL_INNER, 1, {proto_hdr_ipv4}
 215 };
 216
 217 struct virtchnl_proto_hdrs inner_ipv4_udp_tmplt = {
 218         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4_with_prot, proto_hdr_udp}
 219 };
 220
 221 struct virtchnl_proto_hdrs inner_ipv4_tcp_tmplt = {
 222         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4_with_prot, proto_hdr_tcp}
 223 };
 224
 225 struct virtchnl_proto_hdrs inner_ipv4_sctp_tmplt = {
 226         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4, proto_hdr_sctp}
 227 };
 228
 229 struct virtchnl_proto_hdrs inner_ipv6_tmplt = {
 230         TUNNEL_LEVEL_INNER, 1, {proto_hdr_ipv6}
 231 };
 232
 233 struct virtchnl_proto_hdrs inner_ipv6_udp_tmplt = {
 234         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6_with_prot, proto_hdr_udp}
 235 };
 236
 237 struct virtchnl_proto_hdrs inner_ipv6_tcp_tmplt = {
 238         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6_with_prot, proto_hdr_tcp}
 239 };
 240
 241 struct virtchnl_proto_hdrs inner_ipv6_sctp_tmplt = {
 242         TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6, proto_hdr_sctp}
 243 };
 244
 245 struct virtchnl_proto_hdrs ipv4_esp_tmplt = {
 246         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_esp}
 247 };
 248
 249 struct virtchnl_proto_hdrs ipv4_udp_esp_tmplt = {
 250         TUNNEL_LEVEL_OUTER, 3,
 251         {proto_hdr_ipv4, proto_hdr_udp, proto_hdr_esp}
 252 };
 253
 254 struct virtchnl_proto_hdrs ipv4_ah_tmplt = {
 255         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_ah}
 256 };
 257
 258 struct virtchnl_proto_hdrs ipv6_esp_tmplt = {
 259         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_esp}
 260 };
 261
 262 struct virtchnl_proto_hdrs ipv6_udp_esp_tmplt = {
 263         TUNNEL_LEVEL_OUTER, 3,
 264         {proto_hdr_ipv6, proto_hdr_udp, proto_hdr_esp}
 265 };
 266
 267 struct virtchnl_proto_hdrs ipv6_ah_tmplt = {
 268         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_ah}
 269 };
 270
 271 struct virtchnl_proto_hdrs ipv4_l2tpv3_tmplt = {
 272         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_l2tpv3}
 273 };
 274
 275 struct virtchnl_proto_hdrs ipv6_l2tpv3_tmplt = {
 276         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_l2tpv3}
 277 };
 278
 279 struct virtchnl_proto_hdrs ipv4_pfcp_tmplt = {
 280         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_pfcp}
 281 };
 282
 283 struct virtchnl_proto_hdrs ipv6_pfcp_tmplt = {
 284         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_pfcp}
 285 };
 286
 287 struct virtchnl_proto_hdrs ipv4_udp_gtpc_tmplt = {
 288         TUNNEL_LEVEL_OUTER, 3, {proto_hdr_ipv4, proto_hdr_udp, proto_hdr_gtpc}
 289 };
 290
 291 struct virtchnl_proto_hdrs ipv6_udp_gtpc_tmplt = {
 292         TUNNEL_LEVEL_OUTER, 3, {proto_hdr_ipv6, proto_hdr_udp, proto_hdr_gtpc}
 293 };
 294
 295 struct virtchnl_proto_hdrs eth_ecpri_tmplt = {
 296         TUNNEL_LEVEL_OUTER, 2, {proto_hdr_eth, proto_hdr_ecpri}
 297 };
 298
 299 struct virtchnl_proto_hdrs ipv4_ecpri_tmplt = {
 300         TUNNEL_LEVEL_OUTER, 3, {proto_hdr_ipv4, proto_hdr_udp, proto_hdr_ecpri}
 301 };
 302
 303 /* rss type super set */
 304
 305 /* IPv4 outer */
 306 #define IAVF_RSS_TYPE_OUTER_IPV4        (ETH_RSS_ETH | ETH_RSS_IPV4)
 307 #define IAVF_RSS_TYPE_OUTER_IPV4_UDP    (IAVF_RSS_TYPE_OUTER_IPV4 | \
 308                                          ETH_RSS_NONFRAG_IPV4_UDP)
 309 #define IAVF_RSS_TYPE_OUTER_IPV4_TCP    (IAVF_RSS_TYPE_OUTER_IPV4 | \
 310                                          ETH_RSS_NONFRAG_IPV4_TCP)
 311 #define IAVF_RSS_TYPE_OUTER_IPV4_SCTP   (IAVF_RSS_TYPE_OUTER_IPV4 | \
 312                                          ETH_RSS_NONFRAG_IPV4_SCTP)
 313 /* IPv6 outer */
 314 #define IAVF_RSS_TYPE_OUTER_IPV6        (ETH_RSS_ETH | ETH_RSS_IPV6)
 315 #define IAVF_RSS_TYPE_OUTER_IPV6_UDP    (IAVF_RSS_TYPE_OUTER_IPV6 | \
 316                                          ETH_RSS_NONFRAG_IPV6_UDP)
 317 #define IAVF_RSS_TYPE_OUTER_IPV6_TCP    (IAVF_RSS_TYPE_OUTER_IPV6 | \
 318                                          ETH_RSS_NONFRAG_IPV6_TCP)
 319 #define IAVF_RSS_TYPE_OUTER_IPV6_SCTP   (IAVF_RSS_TYPE_OUTER_IPV6 | \
 320                                          ETH_RSS_NONFRAG_IPV6_SCTP)
 321 /* VLAN IPV4 */
 322 #define IAVF_RSS_TYPE_VLAN_IPV4         (IAVF_RSS_TYPE_OUTER_IPV4 | \
 323                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 324 #define IAVF_RSS_TYPE_VLAN_IPV4_UDP     (IAVF_RSS_TYPE_OUTER_IPV4_UDP | \
 325                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 326 #define IAVF_RSS_TYPE_VLAN_IPV4_TCP     (IAVF_RSS_TYPE_OUTER_IPV4_TCP | \
 327                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 328 #define IAVF_RSS_TYPE_VLAN_IPV4_SCTP    (IAVF_RSS_TYPE_OUTER_IPV4_SCTP | \
 329                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 330 /* VLAN IPv6 */
 331 #define IAVF_RSS_TYPE_VLAN_IPV6         (IAVF_RSS_TYPE_OUTER_IPV6 | \
 332                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 333 #define IAVF_RSS_TYPE_VLAN_IPV6_UDP     (IAVF_RSS_TYPE_OUTER_IPV6_UDP | \
 334                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 335 #define IAVF_RSS_TYPE_VLAN_IPV6_TCP     (IAVF_RSS_TYPE_OUTER_IPV6_TCP | \
 336                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 337 #define IAVF_RSS_TYPE_VLAN_IPV6_SCTP    (IAVF_RSS_TYPE_OUTER_IPV6_SCTP | \
 338                                          ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 339 /* IPv4 inner */
 340 #define IAVF_RSS_TYPE_INNER_IPV4        ETH_RSS_IPV4
 341 #define IAVF_RSS_TYPE_INNER_IPV4_UDP    (ETH_RSS_IPV4 | \
 342                                          ETH_RSS_NONFRAG_IPV4_UDP)
 343 #define IAVF_RSS_TYPE_INNER_IPV4_TCP    (ETH_RSS_IPV4 | \
 344                                          ETH_RSS_NONFRAG_IPV4_TCP)
 345 #define IAVF_RSS_TYPE_INNER_IPV4_SCTP   (ETH_RSS_IPV4 | \
 346                                          ETH_RSS_NONFRAG_IPV4_SCTP)
 347 /* IPv6 inner */
 348 #define IAVF_RSS_TYPE_INNER_IPV6        ETH_RSS_IPV6
 349 #define IAVF_RSS_TYPE_INNER_IPV6_UDP    (ETH_RSS_IPV6 | \
 350                                          ETH_RSS_NONFRAG_IPV6_UDP)
 351 #define IAVF_RSS_TYPE_INNER_IPV6_TCP    (ETH_RSS_IPV6 | \
 352                                          ETH_RSS_NONFRAG_IPV6_TCP)
 353 #define IAVF_RSS_TYPE_INNER_IPV6_SCTP   (ETH_RSS_IPV6 | \
 354                                          ETH_RSS_NONFRAG_IPV6_SCTP)
 355 /* GTPU IPv4 */
 356 #define IAVF_RSS_TYPE_GTPU_IPV4         (IAVF_RSS_TYPE_INNER_IPV4 | \
 357                                          ETH_RSS_GTPU)
 358 #define IAVF_RSS_TYPE_GTPU_IPV4_UDP     (IAVF_RSS_TYPE_INNER_IPV4_UDP | \
 359                                          ETH_RSS_GTPU)
 360 #define IAVF_RSS_TYPE_GTPU_IPV4_TCP     (IAVF_RSS_TYPE_INNER_IPV4_TCP | \
 361                                          ETH_RSS_GTPU)
 362 /* GTPU IPv6 */
 363 #define IAVF_RSS_TYPE_GTPU_IPV6         (IAVF_RSS_TYPE_INNER_IPV6 | \
 364                                          ETH_RSS_GTPU)
 365 #define IAVF_RSS_TYPE_GTPU_IPV6_UDP     (IAVF_RSS_TYPE_INNER_IPV6_UDP | \
 366                                          ETH_RSS_GTPU)
 367 #define IAVF_RSS_TYPE_GTPU_IPV6_TCP     (IAVF_RSS_TYPE_INNER_IPV6_TCP | \
 368                                          ETH_RSS_GTPU)
 369 /* ESP, AH, L2TPV3 and PFCP */
 370 #define IAVF_RSS_TYPE_IPV4_ESP          (ETH_RSS_ESP | ETH_RSS_IPV4)
 371 #define IAVF_RSS_TYPE_IPV4_AH           (ETH_RSS_AH | ETH_RSS_IPV4)
 372 #define IAVF_RSS_TYPE_IPV6_ESP          (ETH_RSS_ESP | ETH_RSS_IPV6)
 373 #define IAVF_RSS_TYPE_IPV6_AH           (ETH_RSS_AH | ETH_RSS_IPV6)
 374 #define IAVF_RSS_TYPE_IPV4_L2TPV3       (ETH_RSS_L2TPV3 | ETH_RSS_IPV4)
 375 #define IAVF_RSS_TYPE_IPV6_L2TPV3       (ETH_RSS_L2TPV3 | ETH_RSS_IPV6)
 376 #define IAVF_RSS_TYPE_IPV4_PFCP         (ETH_RSS_PFCP | ETH_RSS_IPV4)
 377 #define IAVF_RSS_TYPE_IPV6_PFCP         (ETH_RSS_PFCP | ETH_RSS_IPV6)
 378
 379 /**
 380  * Supported pattern for hash.
 381  * The first member is pattern item type,
 382  * the second member is input set mask,
 383  * the third member is virtchnl_proto_hdrs template
 384  */
 385 static struct iavf_pattern_match_item iavf_hash_pattern_list[] = {
 386         /* IPv4 */
 387         {iavf_pattern_eth_ipv4,                         IAVF_RSS_TYPE_OUTER_IPV4,       &outer_ipv4_tmplt},
 388         {iavf_pattern_eth_ipv4_udp,                     IAVF_RSS_TYPE_OUTER_IPV4_UDP,   &outer_ipv4_udp_tmplt},
 389         {iavf_pattern_eth_ipv4_tcp,                     IAVF_RSS_TYPE_OUTER_IPV4_TCP,   &outer_ipv4_tcp_tmplt},
 390         {iavf_pattern_eth_ipv4_sctp,                    IAVF_RSS_TYPE_OUTER_IPV4_SCTP,  &outer_ipv4_sctp_tmplt},
 391         {iavf_pattern_eth_vlan_ipv4,                    IAVF_RSS_TYPE_VLAN_IPV4,        &outer_ipv4_tmplt},
 392         {iavf_pattern_eth_vlan_ipv4_udp,                IAVF_RSS_TYPE_VLAN_IPV4_UDP,    &outer_ipv4_udp_tmplt},
 393         {iavf_pattern_eth_vlan_ipv4_tcp,                IAVF_RSS_TYPE_VLAN_IPV4_TCP,    &outer_ipv4_tcp_tmplt},
 394         {iavf_pattern_eth_vlan_ipv4_sctp,               IAVF_RSS_TYPE_VLAN_IPV4_SCTP,   &outer_ipv4_sctp_tmplt},
 395         {iavf_pattern_eth_ipv4_gtpu,                    ETH_RSS_IPV4,                   &outer_ipv4_udp_tmplt},
 396         {iavf_pattern_eth_ipv4_gtpu_ipv4,               IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 397         {iavf_pattern_eth_ipv4_gtpu_ipv4_udp,           IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 398         {iavf_pattern_eth_ipv4_gtpu_ipv4_tcp,           IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 399         {iavf_pattern_eth_ipv6_gtpu_ipv4,               IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 400         {iavf_pattern_eth_ipv6_gtpu_ipv4_udp,           IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 401         {iavf_pattern_eth_ipv6_gtpu_ipv4_tcp,           IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 402         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4,            IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 403         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4_udp,        IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 404         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4_tcp,        IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 405         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4,            IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 406         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4_udp,        IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 407         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4_tcp,        IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 408         {iavf_pattern_eth_ipv4_esp,                     IAVF_RSS_TYPE_IPV4_ESP,         &ipv4_esp_tmplt},
 409         {iavf_pattern_eth_ipv4_udp_esp,                 IAVF_RSS_TYPE_IPV4_ESP,         &ipv4_udp_esp_tmplt},
 410         {iavf_pattern_eth_ipv4_ah,                      IAVF_RSS_TYPE_IPV4_AH,          &ipv4_ah_tmplt},
 411         {iavf_pattern_eth_ipv4_l2tpv3,                  IAVF_RSS_TYPE_IPV4_L2TPV3,      &ipv4_l2tpv3_tmplt},
 412         {iavf_pattern_eth_ipv4_pfcp,                    IAVF_RSS_TYPE_IPV4_PFCP,        &ipv4_pfcp_tmplt},
 413         {iavf_pattern_eth_ipv4_gtpc,                    ETH_RSS_IPV4,                   &ipv4_udp_gtpc_tmplt},
 414         {iavf_pattern_eth_ecpri,                        ETH_RSS_ECPRI,                  &eth_ecpri_tmplt},
 415         {iavf_pattern_eth_ipv4_ecpri,                   ETH_RSS_ECPRI,                  &ipv4_ecpri_tmplt},
 416         /* IPv6 */
 417         {iavf_pattern_eth_ipv6,                         IAVF_RSS_TYPE_OUTER_IPV6,       &outer_ipv6_tmplt},
 418         {iavf_pattern_eth_ipv6_udp,                     IAVF_RSS_TYPE_OUTER_IPV6_UDP,   &outer_ipv6_udp_tmplt},
 419         {iavf_pattern_eth_ipv6_tcp,                     IAVF_RSS_TYPE_OUTER_IPV6_TCP,   &outer_ipv6_tcp_tmplt},
 420         {iavf_pattern_eth_ipv6_sctp,                    IAVF_RSS_TYPE_OUTER_IPV6_SCTP,  &outer_ipv6_sctp_tmplt},
 421         {iavf_pattern_eth_vlan_ipv6,                    IAVF_RSS_TYPE_VLAN_IPV6,        &outer_ipv6_tmplt},
 422         {iavf_pattern_eth_vlan_ipv6_udp,                IAVF_RSS_TYPE_VLAN_IPV6_UDP,    &outer_ipv6_udp_tmplt},
 423         {iavf_pattern_eth_vlan_ipv6_tcp,                IAVF_RSS_TYPE_VLAN_IPV6_TCP,    &outer_ipv6_tcp_tmplt},
 424         {iavf_pattern_eth_vlan_ipv6_sctp,               IAVF_RSS_TYPE_VLAN_IPV6_SCTP,   &outer_ipv6_sctp_tmplt},
 425         {iavf_pattern_eth_ipv6_gtpu,                    ETH_RSS_IPV6,                   &outer_ipv6_udp_tmplt},
 426         {iavf_pattern_eth_ipv4_gtpu_ipv6,               IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 427         {iavf_pattern_eth_ipv4_gtpu_ipv6_udp,           IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 428         {iavf_pattern_eth_ipv4_gtpu_ipv6_tcp,           IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 429         {iavf_pattern_eth_ipv6_gtpu_ipv6,               IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 430         {iavf_pattern_eth_ipv6_gtpu_ipv6_udp,           IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 431         {iavf_pattern_eth_ipv6_gtpu_ipv6_tcp,           IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 432         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6,            IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 433         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6_udp,        IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 434         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6_tcp,        IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 435         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6,            IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 436         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6_udp,        IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 437         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6_tcp,        IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 438         {iavf_pattern_eth_ipv6_esp,                     IAVF_RSS_TYPE_IPV6_ESP,         &ipv6_esp_tmplt},
 439         {iavf_pattern_eth_ipv6_udp_esp,                 IAVF_RSS_TYPE_IPV6_ESP,         &ipv6_udp_esp_tmplt},
 440         {iavf_pattern_eth_ipv6_ah,                      IAVF_RSS_TYPE_IPV6_AH,          &ipv6_ah_tmplt},
 441         {iavf_pattern_eth_ipv6_l2tpv3,                  IAVF_RSS_TYPE_IPV6_L2TPV3,      &ipv6_l2tpv3_tmplt},
 442         {iavf_pattern_eth_ipv6_pfcp,                    IAVF_RSS_TYPE_IPV6_PFCP,        &ipv6_pfcp_tmplt},
 443         {iavf_pattern_eth_ipv6_gtpc,                    ETH_RSS_IPV6,                   &ipv6_udp_gtpc_tmplt},
 444 };
 445
 446 struct virtchnl_proto_hdrs *iavf_hash_default_hdrs[] = {
 447         &inner_ipv4_tmplt,
 448         &inner_ipv4_udp_tmplt,
 449         &inner_ipv4_tcp_tmplt,
 450         &inner_ipv4_sctp_tmplt,
 451         &inner_ipv6_tmplt,
 452         &inner_ipv6_udp_tmplt,
 453         &inner_ipv6_tcp_tmplt,
 454         &inner_ipv6_sctp_tmplt,
 455 };
 456
 457 static struct iavf_flow_engine iavf_hash_engine = {
 458         .init = iavf_hash_init,
 459         .create = iavf_hash_create,
 460         .destroy = iavf_hash_destroy,
 461         .uninit = iavf_hash_uninit,
 462         .free = iavf_hash_free,
 463         .type = IAVF_FLOW_ENGINE_HASH,
 464 };
 465
 466 /* Register parser for comms package. */
 467 static struct iavf_flow_parser iavf_hash_parser = {
 468         .engine = &iavf_hash_engine,
 469         .array = iavf_hash_pattern_list,
 470         .array_len = RTE_DIM(iavf_hash_pattern_list),
 471         .parse_pattern_action = iavf_hash_parse_pattern_action,
 472         .stage = IAVF_FLOW_STAGE_RSS,
 473 };
 474
 475 static int
 476 iavf_hash_default_set(struct iavf_adapter *ad, bool add)
 477 {
 478         struct virtchnl_rss_cfg *rss_cfg;
 479         uint16_t i;
 480
 481         rss_cfg = rte_zmalloc("iavf rss rule",
 482                               sizeof(struct virtchnl_rss_cfg), 0);
 483         if (!rss_cfg)
 484                 return -ENOMEM;
 485
 486         for (i = 0; i < RTE_DIM(iavf_hash_default_hdrs); i++) {
 487                 rss_cfg->proto_hdrs = *iavf_hash_default_hdrs[i];
 488                 rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
 489
 490                 iavf_add_del_rss_cfg(ad, rss_cfg, add);
 491         }
 492
 493         return 0;
 494 }
 495
 496 RTE_INIT(iavf_hash_engine_init)
 497 {
 498         struct iavf_flow_engine *engine = &iavf_hash_engine;
 499
 500         iavf_register_flow_engine(engine);
 501 }
 502
 503 static int
 504 iavf_hash_init(struct iavf_adapter *ad)
 505 {
 506         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
 507         struct iavf_flow_parser *parser;
 508         int ret;
 509
 510         if (vf->vf_reset)
 511                 return -EIO;
 512
 513         if (!vf->vf_res)
 514                 return -EINVAL;
 515
 516         if (!(vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF))
 517                 return -ENOTSUP;
 518
 519         parser = &iavf_hash_parser;
 520
 521         ret = iavf_register_parser(parser, ad);
 522         if (ret) {
 523                 PMD_DRV_LOG(ERR, "fail to register hash parser");
 524                 return ret;
 525         }
 526
 527         ret = iavf_hash_default_set(ad, true);
 528         if (ret) {
 529                 PMD_DRV_LOG(ERR, "fail to set default RSS");
 530                 iavf_unregister_parser(parser, ad);
 531         }
 532
 533         return ret;
 534 }
 535
 536 static int
 537 iavf_hash_parse_pattern(const struct rte_flow_item pattern[], uint64_t *phint,
 538                         struct rte_flow_error *error)
 539 {
 540         const struct rte_flow_item *item = pattern;
 541         const struct rte_flow_item_gtp_psc *psc;
 542         const struct rte_flow_item_ecpri *ecpri;
 543         struct rte_ecpri_common_hdr ecpri_common;
 544
 545         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 546                 if (item->last) {
 547                         rte_flow_error_set(error, EINVAL,
 548                                            RTE_FLOW_ERROR_TYPE_ITEM, item,
 549                                            "Not support range");
 550                         return -rte_errno;
 551                 }
 552
 553                 switch (item->type) {
 554                 case RTE_FLOW_ITEM_TYPE_IPV4:
 555                         if (!(*phint & IAVF_PHINT_GTPU_MSK))
 556                                 *phint |= IAVF_PHINT_OUTER_IPV4;
 557                         break;
 558                 case RTE_FLOW_ITEM_TYPE_IPV6:
 559                         if (!(*phint & IAVF_PHINT_GTPU_MSK))
 560                                 *phint |= IAVF_PHINT_OUTER_IPV6;
 561                         break;
 562                 case RTE_FLOW_ITEM_TYPE_GTPU:
 563                         *phint |= IAVF_PHINT_GTPU;
 564                         break;
 565                 case RTE_FLOW_ITEM_TYPE_GTP_PSC:
 566                         *phint |= IAVF_PHINT_GTPU_EH;
 567                         psc = item->spec;
 568                         if (!psc)
 569                                 break;
 570                         else if (psc->pdu_type == IAVF_GTPU_EH_UPLINK)
 571                                 *phint |= IAVF_PHINT_GTPU_EH_UP;
 572                         else if (psc->pdu_type == IAVF_GTPU_EH_DWNLINK)
 573                                 *phint |= IAVF_PHINT_GTPU_EH_DWN;
 574                         break;
 575                 case RTE_FLOW_ITEM_TYPE_ECPRI:
 576                         ecpri = item->spec;
 577                         ecpri_common.u32 = rte_be_to_cpu_32(
 578                                                 ecpri->hdr.common.u32);
 579                         if (!ecpri)
 580                                 break;
 581                         else if (ecpri_common.type !=
 582                                  RTE_ECPRI_MSG_TYPE_IQ_DATA) {
 583                                 rte_flow_error_set(error, EINVAL,
 584                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
 585                                         "Unsupported common type.");
 586                                 return -rte_errno;
 587                         }
 588                         break;
 589                 default:
 590                         break;
 591                 }
 592         }
 593
 594         return 0;
 595 }
 596
 597 #define REFINE_PROTO_FLD(op, fld) \
 598         VIRTCHNL_##op##_PROTO_HDR_FIELD(hdr, VIRTCHNL_PROTO_HDR_##fld)
 599 #define REPALCE_PROTO_FLD(fld_1, fld_2) \
 600 do { \
 601         REFINE_PROTO_FLD(DEL, fld_1);   \
 602         REFINE_PROTO_FLD(ADD, fld_2);   \
 603 } while (0)
 604
 605 /* refine proto hdrs base on l2, l3, l4 rss type */
 606 static void
 607 iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 608                             uint64_t rss_type)
 609 {
 610         struct virtchnl_proto_hdr *hdr;
 611         int i;
 612
 613         for (i = 0; i < proto_hdrs->count; i++) {
 614                 hdr = &proto_hdrs->proto_hdr[i];
 615                 switch (hdr->type) {
 616                 case VIRTCHNL_PROTO_HDR_ETH:
 617                         if (!(rss_type & ETH_RSS_ETH))
 618                                 hdr->field_selector = 0;
 619                         else if (rss_type & ETH_RSS_L2_SRC_ONLY)
 620                                 REFINE_PROTO_FLD(DEL, ETH_DST);
 621                         else if (rss_type & ETH_RSS_L2_DST_ONLY)
 622                                 REFINE_PROTO_FLD(DEL, ETH_SRC);
 623                         break;
 624                 case VIRTCHNL_PROTO_HDR_IPV4:
 625                         if (rss_type &
 626                             (ETH_RSS_IPV4 |
 627                              ETH_RSS_NONFRAG_IPV4_UDP |
 628                              ETH_RSS_NONFRAG_IPV4_TCP |
 629                              ETH_RSS_NONFRAG_IPV4_SCTP)) {
 630                                 if (rss_type & ETH_RSS_L3_SRC_ONLY) {
 631                                         REFINE_PROTO_FLD(DEL, IPV4_DST);
 632                                 } else if (rss_type & ETH_RSS_L3_DST_ONLY) {
 633                                         REFINE_PROTO_FLD(DEL, IPV4_SRC);
 634                                 } else if (rss_type &
 635                                          (ETH_RSS_L4_SRC_ONLY |
 636                                           ETH_RSS_L4_DST_ONLY)) {
 637                                         REFINE_PROTO_FLD(DEL, IPV4_DST);
 638                                         REFINE_PROTO_FLD(DEL, IPV4_SRC);
 639                                 }
 640                         } else {
 641                                 hdr->field_selector = 0;
 642                         }
 643                         break;
 644                 case VIRTCHNL_PROTO_HDR_IPV6:
 645                         if (rss_type &
 646                             (ETH_RSS_IPV6 |
 647                              ETH_RSS_NONFRAG_IPV6_UDP |
 648                              ETH_RSS_NONFRAG_IPV6_TCP |
 649                              ETH_RSS_NONFRAG_IPV6_SCTP)) {
 650                                 if (rss_type & ETH_RSS_L3_SRC_ONLY) {
 651                                         REFINE_PROTO_FLD(DEL, IPV6_DST);
 652                                 } else if (rss_type & ETH_RSS_L3_DST_ONLY) {
 653                                         REFINE_PROTO_FLD(DEL, IPV6_SRC);
 654                                 } else if (rss_type &
 655                                          (ETH_RSS_L4_SRC_ONLY |
 656                                           ETH_RSS_L4_DST_ONLY)) {
 657                                         REFINE_PROTO_FLD(DEL, IPV6_DST);
 658                                         REFINE_PROTO_FLD(DEL, IPV6_SRC);
 659                                 }
 660                         } else {
 661                                 hdr->field_selector = 0;
 662                         }
 663                         if (rss_type & RTE_ETH_RSS_L3_PRE64) {
 664                                 if (REFINE_PROTO_FLD(TEST, IPV6_SRC))
 665                                         REPALCE_PROTO_FLD(IPV6_SRC,
 666                                                           IPV6_PREFIX64_SRC);
 667                                 if (REFINE_PROTO_FLD(TEST, IPV6_DST))
 668                                         REPALCE_PROTO_FLD(IPV6_DST,
 669                                                           IPV6_PREFIX64_DST);
 670                         }
 671                         break;
 672                 case VIRTCHNL_PROTO_HDR_UDP:
 673                         if (rss_type &
 674                             (ETH_RSS_NONFRAG_IPV4_UDP |
 675                              ETH_RSS_NONFRAG_IPV6_UDP)) {
 676                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 677                                         REFINE_PROTO_FLD(DEL, UDP_DST_PORT);
 678                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 679                                         REFINE_PROTO_FLD(DEL, UDP_SRC_PORT);
 680                                 else if (rss_type &
 681                                          (ETH_RSS_L3_SRC_ONLY |
 682                                           ETH_RSS_L3_DST_ONLY))
 683                                         hdr->field_selector = 0;
 684                         } else {
 685                                 hdr->field_selector = 0;
 686                         }
 687                         break;
 688                 case VIRTCHNL_PROTO_HDR_TCP:
 689                         if (rss_type &
 690                             (ETH_RSS_NONFRAG_IPV4_TCP |
 691                              ETH_RSS_NONFRAG_IPV6_TCP)) {
 692                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 693                                         REFINE_PROTO_FLD(DEL, TCP_DST_PORT);
 694                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 695                                         REFINE_PROTO_FLD(DEL, TCP_SRC_PORT);
 696                                 else if (rss_type &
 697                                          (ETH_RSS_L3_SRC_ONLY |
 698                                           ETH_RSS_L3_DST_ONLY))
 699                                         hdr->field_selector = 0;
 700                         } else {
 701                                 hdr->field_selector = 0;
 702                         }
 703                         break;
 704                 case VIRTCHNL_PROTO_HDR_SCTP:
 705                         if (rss_type &
 706                             (ETH_RSS_NONFRAG_IPV4_SCTP |
 707                              ETH_RSS_NONFRAG_IPV6_SCTP)) {
 708                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 709                                         REFINE_PROTO_FLD(DEL, SCTP_DST_PORT);
 710                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 711                                         REFINE_PROTO_FLD(DEL, SCTP_SRC_PORT);
 712                                 else if (rss_type &
 713                                          (ETH_RSS_L3_SRC_ONLY |
 714                                           ETH_RSS_L3_DST_ONLY))
 715                                         hdr->field_selector = 0;
 716                         } else {
 717                                 hdr->field_selector = 0;
 718                         }
 719                         break;
 720                 case VIRTCHNL_PROTO_HDR_S_VLAN:
 721                         if (!(rss_type & ETH_RSS_S_VLAN))
 722                                 hdr->field_selector = 0;
 723                         break;
 724                 case VIRTCHNL_PROTO_HDR_C_VLAN:
 725                         if (!(rss_type & ETH_RSS_C_VLAN))
 726                                 hdr->field_selector = 0;
 727                         break;
 728                 case VIRTCHNL_PROTO_HDR_L2TPV3:
 729                         if (!(rss_type & ETH_RSS_L2TPV3))
 730                                 hdr->field_selector = 0;
 731                         break;
 732                 case VIRTCHNL_PROTO_HDR_ESP:
 733                         if (!(rss_type & ETH_RSS_ESP))
 734                                 hdr->field_selector = 0;
 735                         break;
 736                 case VIRTCHNL_PROTO_HDR_AH:
 737                         if (!(rss_type & ETH_RSS_AH))
 738                                 hdr->field_selector = 0;
 739                         break;
 740                 case VIRTCHNL_PROTO_HDR_PFCP:
 741                         if (!(rss_type & ETH_RSS_PFCP))
 742                                 hdr->field_selector = 0;
 743                         break;
 744                 case VIRTCHNL_PROTO_HDR_ECPRI:
 745                         if (!(rss_type & ETH_RSS_ECPRI))
 746                                 hdr->field_selector = 0;
 747                         break;
 748                 default:
 749                         break;
 750                 }
 751         }
 752 }
 753
 754 /* refine proto hdrs base on gtpu rss type */
 755 static void
 756 iavf_refine_proto_hdrs_gtpu(struct virtchnl_proto_hdrs *proto_hdrs,
 757                             uint64_t rss_type)
 758 {
 759         struct virtchnl_proto_hdr *hdr;
 760         int i;
 761
 762         if (!(rss_type & ETH_RSS_GTPU))
 763                 return;
 764
 765         for (i = 0; i < proto_hdrs->count; i++) {
 766                 hdr = &proto_hdrs->proto_hdr[i];
 767                 switch (hdr->type) {
 768                 case VIRTCHNL_PROTO_HDR_GTPU_IP:
 769                         REFINE_PROTO_FLD(ADD, GTPU_IP_TEID);
 770                         break;
 771                 default:
 772                         break;
 773                 }
 774         }
 775 }
 776
 777 static void
 778 iavf_refine_proto_hdrs_by_pattern(struct virtchnl_proto_hdrs *proto_hdrs,
 779                                   uint64_t phint)
 780 {
 781         struct virtchnl_proto_hdr *hdr1;
 782         struct virtchnl_proto_hdr *hdr2;
 783         int i, shift_count = 1;
 784
 785         if (!(phint & IAVF_PHINT_GTPU_MSK))
 786                 return;
 787
 788         if (phint & IAVF_PHINT_LAYERS_MSK)
 789                 shift_count++;
 790
 791         if (proto_hdrs->tunnel_level == TUNNEL_LEVEL_INNER) {
 792                 /* shift headers layer */
 793                 for (i = proto_hdrs->count - 1 + shift_count;
 794                      i > shift_count - 1; i--) {
 795                         hdr1 = &proto_hdrs->proto_hdr[i];
 796                         hdr2 = &proto_hdrs->proto_hdr[i - shift_count];
 797                         *hdr1 = *hdr2;
 798                 }
 799
 800                 if (shift_count == 1) {
 801                         /* adding gtpu header at layer 0 */
 802                         hdr1 = &proto_hdrs->proto_hdr[0];
 803                 } else {
 804                         /* adding gtpu header and outer ip header */
 805                         hdr1 = &proto_hdrs->proto_hdr[1];
 806                         hdr2 = &proto_hdrs->proto_hdr[0];
 807                         hdr2->field_selector = 0;
 808                         proto_hdrs->count++;
 809                         proto_hdrs->tunnel_level = TUNNEL_LEVEL_OUTER;
 810
 811                         if (phint & IAVF_PHINT_OUTER_IPV4)
 812                                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr2, IPV4);
 813                         else if (phint & IAVF_PHINT_OUTER_IPV6)
 814                                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr2, IPV6);
 815                 }
 816         } else {
 817                 hdr1 = &proto_hdrs->proto_hdr[proto_hdrs->count];
 818         }
 819
 820         hdr1->field_selector = 0;
 821         proto_hdrs->count++;
 822
 823         if (phint & IAVF_PHINT_GTPU_EH_DWN)
 824                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_DWN);
 825         else if (phint & IAVF_PHINT_GTPU_EH_UP)
 826                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_UP);
 827         else if (phint & IAVF_PHINT_GTPU_EH)
 828                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH);
 829         else if (phint & IAVF_PHINT_GTPU)
 830                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_IP);
 831 }
 832
 833 static void iavf_refine_proto_hdrs(struct virtchnl_proto_hdrs *proto_hdrs,
 834                                    uint64_t rss_type, uint64_t phint)
 835 {
 836         iavf_refine_proto_hdrs_l234(proto_hdrs, rss_type);
 837         iavf_refine_proto_hdrs_by_pattern(proto_hdrs, phint);
 838         iavf_refine_proto_hdrs_gtpu(proto_hdrs, rss_type);
 839 }
 840
 841 static uint64_t invalid_rss_comb[] = {
 842         ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP,
 843         ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP,
 844         RTE_ETH_RSS_L3_PRE32 | RTE_ETH_RSS_L3_PRE40 |
 845         RTE_ETH_RSS_L3_PRE48 | RTE_ETH_RSS_L3_PRE56 |
 846         RTE_ETH_RSS_L3_PRE96
 847 };
 848
 849 struct rss_attr_type {
 850         uint64_t attr;
 851         uint64_t type;
 852 };
 853
 854 #define VALID_RSS_IPV4_L4       (ETH_RSS_NONFRAG_IPV4_UDP       | \
 855                                  ETH_RSS_NONFRAG_IPV4_TCP       | \
 856                                  ETH_RSS_NONFRAG_IPV4_SCTP)
 857
 858 #define VALID_RSS_IPV6_L4       (ETH_RSS_NONFRAG_IPV6_UDP       | \
 859                                  ETH_RSS_NONFRAG_IPV6_TCP       | \
 860                                  ETH_RSS_NONFRAG_IPV6_SCTP)
 861
 862 #define VALID_RSS_IPV4          (ETH_RSS_IPV4 | VALID_RSS_IPV4_L4)
 863 #define VALID_RSS_IPV6          (ETH_RSS_IPV6 | VALID_RSS_IPV6_L4)
 864 #define VALID_RSS_L3            (VALID_RSS_IPV4 | VALID_RSS_IPV6)
 865 #define VALID_RSS_L4            (VALID_RSS_IPV4_L4 | VALID_RSS_IPV6_L4)
 866
 867 #define VALID_RSS_ATTR          (ETH_RSS_L3_SRC_ONLY    | \
 868                                  ETH_RSS_L3_DST_ONLY    | \
 869                                  ETH_RSS_L4_SRC_ONLY    | \
 870                                  ETH_RSS_L4_DST_ONLY    | \
 871                                  ETH_RSS_L2_SRC_ONLY    | \
 872                                  ETH_RSS_L2_DST_ONLY    | \
 873                                  RTE_ETH_RSS_L3_PRE64)
 874
 875 #define INVALID_RSS_ATTR        (RTE_ETH_RSS_L3_PRE32   | \
 876                                  RTE_ETH_RSS_L3_PRE40   | \
 877                                  RTE_ETH_RSS_L3_PRE48   | \
 878                                  RTE_ETH_RSS_L3_PRE56   | \
 879                                  RTE_ETH_RSS_L3_PRE96)
 880
 881 static struct rss_attr_type rss_attr_to_valid_type[] = {
 882         {ETH_RSS_L2_SRC_ONLY | ETH_RSS_L2_DST_ONLY,     ETH_RSS_ETH},
 883         {ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY,     VALID_RSS_L3},
 884         {ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY,     VALID_RSS_L4},
 885         /* current ipv6 prefix only supports prefix 64 bits*/
 886         {RTE_ETH_RSS_L3_PRE64,                          VALID_RSS_IPV6},
 887         {INVALID_RSS_ATTR,                              0}
 888 };
 889
 890 static bool
 891 iavf_any_invalid_rss_type(enum rte_eth_hash_function rss_func,
 892                           uint64_t rss_type, uint64_t allow_rss_type)
 893 {
 894         uint32_t i;
 895
 896         /**
 897          * Check if l3/l4 SRC/DST_ONLY is set for SYMMETRIC_TOEPLITZ
 898          * hash function.
 899          */
 900         if (rss_func == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
 901                 if (rss_type & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY |
 902                     ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY))
 903                         return true;
 904         }
 905
 906         /* check invalid combination */
 907         for (i = 0; i < RTE_DIM(invalid_rss_comb); i++) {
 908                 if (__builtin_popcountll(rss_type & invalid_rss_comb[i]) > 1)
 909                         return true;
 910         }
 911
 912         /* check invalid RSS attribute */
 913         for (i = 0; i < RTE_DIM(rss_attr_to_valid_type); i++) {
 914                 struct rss_attr_type *rat = &rss_attr_to_valid_type[i];
 915
 916                 if (rat->attr & rss_type && !(rat->type & rss_type))
 917                         return true;
 918         }
 919
 920         /* check not allowed RSS type */
 921         rss_type &= ~VALID_RSS_ATTR;
 922
 923         return ((rss_type & allow_rss_type) != rss_type);
 924 }
 925
 926 static int
 927 iavf_hash_parse_action(struct iavf_pattern_match_item *match_item,
 928                        const struct rte_flow_action actions[],
 929                        uint64_t pattern_hint, void **meta,
 930                        struct rte_flow_error *error)
 931 {
 932         struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)*meta;
 933         struct virtchnl_proto_hdrs *proto_hdrs;
 934         enum rte_flow_action_type action_type;
 935         const struct rte_flow_action_rss *rss;
 936         const struct rte_flow_action *action;
 937         uint64_t rss_type;
 938
 939         /* Supported action is RSS. */
 940         for (action = actions; action->type !=
 941                 RTE_FLOW_ACTION_TYPE_END; action++) {
 942                 action_type = action->type;
 943                 switch (action_type) {
 944                 case RTE_FLOW_ACTION_TYPE_RSS:
 945                         rss = action->conf;
 946                         rss_type = rss->types;
 947
 948                         if (rss->func ==
 949                             RTE_ETH_HASH_FUNCTION_SIMPLE_XOR){
 950                                 rss_meta->rss_algorithm =
 951                                         VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC;
 952                                 return rte_flow_error_set(error, ENOTSUP,
 953                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 954                                         "function simple_xor is not supported");
 955                         } else if (rss->func ==
 956                                    RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
 957                                 rss_meta->rss_algorithm =
 958                                         VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
 959                         } else {
 960                                 rss_meta->rss_algorithm =
 961                                         VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
 962                         }
 963
 964                         if (rss->level)
 965                                 return rte_flow_error_set(error, ENOTSUP,
 966                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 967                                         "a nonzero RSS encapsulation level is not supported");
 968
 969                         if (rss->key_len)
 970                                 return rte_flow_error_set(error, ENOTSUP,
 971                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 972                                         "a nonzero RSS key_len is not supported");
 973
 974                         if (rss->queue_num)
 975                                 return rte_flow_error_set(error, ENOTSUP,
 976                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 977                                         "a non-NULL RSS queue is not supported");
 978
 979                         /**
 980                          * Check simultaneous use of SRC_ONLY and DST_ONLY
 981                          * of the same level.
 982                          */
 983                         rss_type = rte_eth_rss_hf_refine(rss_type);
 984
 985                         if (iavf_any_invalid_rss_type(rss->func, rss_type,
 986                                         match_item->input_set_mask))
 987                                 return rte_flow_error_set(error, ENOTSUP,
 988                                                 RTE_FLOW_ERROR_TYPE_ACTION,
 989                                                 action, "RSS type not supported");
 990                         proto_hdrs = match_item->meta;
 991                         rss_meta->proto_hdrs = *proto_hdrs;
 992                         iavf_refine_proto_hdrs(&rss_meta->proto_hdrs,
 993                                                rss_type, pattern_hint);
 994                         break;
 995
 996                 case RTE_FLOW_ACTION_TYPE_END:
 997                         break;
 998
 999                 default:
1000                         rte_flow_error_set(error, EINVAL,
1001                                            RTE_FLOW_ERROR_TYPE_ACTION, action,
1002                                            "Invalid action.");
1003                         return -rte_errno;
1004                 }
1005         }
1006
1007         return 0;
1008 }
1009
1010 static int
1011 iavf_hash_parse_pattern_action(__rte_unused struct iavf_adapter *ad,
1012                                struct iavf_pattern_match_item *array,
1013                                uint32_t array_len,
1014                                const struct rte_flow_item pattern[],
1015                                const struct rte_flow_action actions[],
1016                                void **meta,
1017                                struct rte_flow_error *error)
1018 {
1019         struct iavf_pattern_match_item *pattern_match_item;
1020         struct iavf_rss_meta *rss_meta_ptr;
1021         uint64_t phint = IAVF_PHINT_NONE;
1022         int ret = 0;
1023
1024         rss_meta_ptr = rte_zmalloc(NULL, sizeof(*rss_meta_ptr), 0);
1025         if (!rss_meta_ptr) {
1026                 rte_flow_error_set(error, EINVAL,
1027                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1028                                    "No memory for rss_meta_ptr");
1029                 return -ENOMEM;
1030         }
1031
1032         /* Check rss supported pattern and find matched pattern. */
1033         pattern_match_item =
1034                 iavf_search_pattern_match_item(pattern, array, array_len,
1035                                                error);
1036         if (!pattern_match_item) {
1037                 ret = -rte_errno;
1038                 goto error;
1039         }
1040
1041         ret = iavf_hash_parse_pattern(pattern, &phint, error);
1042         if (ret)
1043                 goto error;
1044
1045         ret = iavf_hash_parse_action(pattern_match_item, actions, phint,
1046                                      (void **)&rss_meta_ptr, error);
1047
1048 error:
1049         if (!ret && meta)
1050                 *meta = rss_meta_ptr;
1051         else
1052                 rte_free(rss_meta_ptr);
1053
1054         rte_free(pattern_match_item);
1055
1056         return ret;
1057 }
1058
1059 static int
1060 iavf_hash_create(__rte_unused struct iavf_adapter *ad,
1061                  __rte_unused struct rte_flow *flow, void *meta,
1062                  __rte_unused struct rte_flow_error *error)
1063 {
1064         struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)meta;
1065         struct virtchnl_rss_cfg *rss_cfg;
1066         int ret = 0;
1067
1068         rss_cfg = rte_zmalloc("iavf rss rule",
1069                               sizeof(struct virtchnl_rss_cfg), 0);
1070         if (!rss_cfg) {
1071                 rte_flow_error_set(error, EINVAL,
1072                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1073                                    "No memory for rss rule");
1074                 return -ENOMEM;
1075         }
1076
1077         rss_cfg->proto_hdrs = rss_meta->proto_hdrs;
1078         rss_cfg->rss_algorithm = rss_meta->rss_algorithm;
1079
1080         ret = iavf_add_del_rss_cfg(ad, rss_cfg, true);
1081         if (!ret) {
1082                 flow->rule = rss_cfg;
1083         } else {
1084                 PMD_DRV_LOG(ERR, "fail to add RSS configure");
1085                 rte_flow_error_set(error, -ret,
1086                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1087                                    "Failed to add rss rule.");
1088                 rte_free(rss_cfg);
1089                 return -rte_errno;
1090         }
1091
1092         rte_free(meta);
1093
1094         return ret;
1095 }
1096
1097 static int
1098 iavf_hash_destroy(__rte_unused struct iavf_adapter *ad,
1099                   struct rte_flow *flow,
1100                   __rte_unused struct rte_flow_error *error)
1101 {
1102         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
1103         struct virtchnl_rss_cfg *rss_cfg;
1104         int ret = 0;
1105
1106         if (vf->vf_reset)
1107                 return 0;
1108
1109         rss_cfg = (struct virtchnl_rss_cfg *)flow->rule;
1110
1111         ret = iavf_add_del_rss_cfg(ad, rss_cfg, false);
1112         if (ret) {
1113                 PMD_DRV_LOG(ERR, "fail to del RSS configure");
1114                 rte_flow_error_set(error, -ret,
1115                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1116                                    "Failed to delete rss rule.");
1117                 return -rte_errno;
1118         }
1119         return ret;
1120 }
1121
1122 static void
1123 iavf_hash_uninit(struct iavf_adapter *ad)
1124 {
1125         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
1126
1127         if (vf->vf_reset)
1128                 return;
1129
1130         if (!vf->vf_res)
1131                 return;
1132
1133         if (!(vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF))
1134                 return;
1135
1136         if (iavf_hash_default_set(ad, false))
1137                 PMD_DRV_LOG(ERR, "fail to delete default RSS");
1138
1139         iavf_unregister_parser(&iavf_hash_parser, ad);
1140 }
1141
1142 static void
1143 iavf_hash_free(struct rte_flow *flow)
1144 {
1145         rte_free(flow->rule);
1146 }