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