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_ipv4,               IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 363         {iavf_pattern_eth_ipv4_gtpu_ipv4_udp,           IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 364         {iavf_pattern_eth_ipv4_gtpu_ipv4_tcp,           IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 365         {iavf_pattern_eth_ipv6_gtpu_ipv4,               IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 366         {iavf_pattern_eth_ipv6_gtpu_ipv4_udp,           IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 367         {iavf_pattern_eth_ipv6_gtpu_ipv4_tcp,           IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 368         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4,            IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 369         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4_udp,        IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 370         {iavf_pattern_eth_ipv4_gtpu_eh_ipv4_tcp,        IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 371         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4,            IAVF_RSS_TYPE_GTPU_IPV4,        &inner_ipv4_tmplt},
 372         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4_udp,        IAVF_RSS_TYPE_GTPU_IPV4_UDP,    &inner_ipv4_udp_tmplt},
 373         {iavf_pattern_eth_ipv6_gtpu_eh_ipv4_tcp,        IAVF_RSS_TYPE_GTPU_IPV4_TCP,    &inner_ipv4_tcp_tmplt},
 374         {iavf_pattern_eth_ipv4_esp,                     IAVF_RSS_TYPE_IPV4_ESP,         &ipv4_esp_tmplt},
 375         {iavf_pattern_eth_ipv4_udp_esp,                 IAVF_RSS_TYPE_IPV4_ESP,         &ipv4_udp_esp_tmplt},
 376         {iavf_pattern_eth_ipv4_ah,                      IAVF_RSS_TYPE_IPV4_AH,          &ipv4_ah_tmplt},
 377         {iavf_pattern_eth_ipv4_l2tpv3,                  IAVF_RSS_TYPE_IPV4_L2TPV3,      &ipv4_l2tpv3_tmplt},
 378         {iavf_pattern_eth_ipv4_pfcp,                    IAVF_RSS_TYPE_IPV4_PFCP,        &ipv4_pfcp_tmplt},
 379         {iavf_pattern_eth_ipv4_gtpc,                    ETH_RSS_IPV4,                   &ipv4_udp_gtpc_tmplt},
 380         /* IPv6 */
 381         {iavf_pattern_eth_ipv6,                         IAVF_RSS_TYPE_OUTER_IPV6,       &outer_ipv6_tmplt},
 382         {iavf_pattern_eth_ipv6_udp,                     IAVF_RSS_TYPE_OUTER_IPV6_UDP,   &outer_ipv6_udp_tmplt},
 383         {iavf_pattern_eth_ipv6_tcp,                     IAVF_RSS_TYPE_OUTER_IPV6_TCP,   &outer_ipv6_tcp_tmplt},
 384         {iavf_pattern_eth_ipv6_sctp,                    IAVF_RSS_TYPE_OUTER_IPV6_SCTP,  &outer_ipv6_sctp_tmplt},
 385         {iavf_pattern_eth_vlan_ipv6,                    IAVF_RSS_TYPE_VLAN_IPV6,        &outer_ipv6_tmplt},
 386         {iavf_pattern_eth_vlan_ipv6_udp,                IAVF_RSS_TYPE_VLAN_IPV6_UDP,    &outer_ipv6_udp_tmplt},
 387         {iavf_pattern_eth_vlan_ipv6_tcp,                IAVF_RSS_TYPE_VLAN_IPV6_TCP,    &outer_ipv6_tcp_tmplt},
 388         {iavf_pattern_eth_vlan_ipv6_sctp,               IAVF_RSS_TYPE_VLAN_IPV6_SCTP,   &outer_ipv6_sctp_tmplt},
 389         {iavf_pattern_eth_ipv4_gtpu_ipv6,               IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 390         {iavf_pattern_eth_ipv4_gtpu_ipv6_udp,           IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 391         {iavf_pattern_eth_ipv4_gtpu_ipv6_tcp,           IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 392         {iavf_pattern_eth_ipv6_gtpu_ipv6,               IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 393         {iavf_pattern_eth_ipv6_gtpu_ipv6_udp,           IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 394         {iavf_pattern_eth_ipv6_gtpu_ipv6_tcp,           IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 395         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6,            IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 396         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6_udp,        IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 397         {iavf_pattern_eth_ipv4_gtpu_eh_ipv6_tcp,        IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 398         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6,            IAVF_RSS_TYPE_GTPU_IPV6,        &inner_ipv6_tmplt},
 399         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6_udp,        IAVF_RSS_TYPE_GTPU_IPV6_UDP,    &inner_ipv6_udp_tmplt},
 400         {iavf_pattern_eth_ipv6_gtpu_eh_ipv6_tcp,        IAVF_RSS_TYPE_GTPU_IPV6_TCP,    &inner_ipv6_tcp_tmplt},
 401         {iavf_pattern_eth_ipv6_esp,                     IAVF_RSS_TYPE_IPV6_ESP,         &ipv6_esp_tmplt},
 402         {iavf_pattern_eth_ipv6_udp_esp,                 IAVF_RSS_TYPE_IPV6_ESP,         &ipv6_udp_esp_tmplt},
 403         {iavf_pattern_eth_ipv6_ah,                      IAVF_RSS_TYPE_IPV6_AH,          &ipv6_ah_tmplt},
 404         {iavf_pattern_eth_ipv6_l2tpv3,                  IAVF_RSS_TYPE_IPV6_L2TPV3,      &ipv6_l2tpv3_tmplt},
 405         {iavf_pattern_eth_ipv6_pfcp,                    IAVF_RSS_TYPE_IPV6_PFCP,        &ipv6_pfcp_tmplt},
 406         {iavf_pattern_eth_ipv6_gtpc,                    ETH_RSS_IPV6,                   &ipv6_udp_gtpc_tmplt},
 407 };
 408
 409 struct virtchnl_proto_hdrs *iavf_hash_default_hdrs[] = {
 410         &inner_ipv4_tmplt,
 411         &inner_ipv4_udp_tmplt,
 412         &inner_ipv4_tcp_tmplt,
 413         &inner_ipv4_sctp_tmplt,
 414         &inner_ipv6_tmplt,
 415         &inner_ipv6_udp_tmplt,
 416         &inner_ipv6_tcp_tmplt,
 417         &inner_ipv6_sctp_tmplt,
 418 };
 419
 420 static struct iavf_flow_engine iavf_hash_engine = {
 421         .init = iavf_hash_init,
 422         .create = iavf_hash_create,
 423         .destroy = iavf_hash_destroy,
 424         .uninit = iavf_hash_uninit,
 425         .free = iavf_hash_free,
 426         .type = IAVF_FLOW_ENGINE_HASH,
 427 };
 428
 429 /* Register parser for comms package. */
 430 static struct iavf_flow_parser iavf_hash_parser = {
 431         .engine = &iavf_hash_engine,
 432         .array = iavf_hash_pattern_list,
 433         .array_len = RTE_DIM(iavf_hash_pattern_list),
 434         .parse_pattern_action = iavf_hash_parse_pattern_action,
 435         .stage = IAVF_FLOW_STAGE_RSS,
 436 };
 437
 438 static int
 439 iavf_hash_default_set(struct iavf_adapter *ad, bool add)
 440 {
 441         struct virtchnl_rss_cfg *rss_cfg;
 442         uint16_t i;
 443
 444         rss_cfg = rte_zmalloc("iavf rss rule",
 445                               sizeof(struct virtchnl_rss_cfg), 0);
 446         if (!rss_cfg)
 447                 return -ENOMEM;
 448
 449         for (i = 0; i < RTE_DIM(iavf_hash_default_hdrs); i++) {
 450                 rss_cfg->proto_hdrs = *iavf_hash_default_hdrs[i];
 451                 rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
 452
 453                 iavf_add_del_rss_cfg(ad, rss_cfg, add);
 454         }
 455
 456         return 0;
 457 }
 458
 459 RTE_INIT(iavf_hash_engine_init)
 460 {
 461         struct iavf_flow_engine *engine = &iavf_hash_engine;
 462
 463         iavf_register_flow_engine(engine);
 464 }
 465
 466 static int
 467 iavf_hash_init(struct iavf_adapter *ad)
 468 {
 469         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
 470         struct iavf_flow_parser *parser;
 471         int ret;
 472
 473         if (vf->vf_reset)
 474                 return -EIO;
 475
 476         if (!vf->vf_res)
 477                 return -EINVAL;
 478
 479         if (!(vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF))
 480                 return -ENOTSUP;
 481
 482         parser = &iavf_hash_parser;
 483
 484         ret = iavf_register_parser(parser, ad);
 485         if (ret) {
 486                 PMD_DRV_LOG(ERR, "fail to register hash parser");
 487                 return ret;
 488         }
 489
 490         ret = iavf_hash_default_set(ad, true);
 491         if (ret) {
 492                 PMD_DRV_LOG(ERR, "fail to set default RSS");
 493                 iavf_unregister_parser(parser, ad);
 494         }
 495
 496         return ret;
 497 }
 498
 499 static int
 500 iavf_hash_parse_pattern(struct iavf_pattern_match_item *pattern_match_item,
 501                         const struct rte_flow_item pattern[], uint64_t *phint,
 502                         struct rte_flow_error *error)
 503 {
 504         const struct rte_flow_item *item = pattern;
 505         const struct rte_flow_item_gtp_psc *psc;
 506
 507         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 508                 if (item->last) {
 509                         rte_flow_error_set(error, EINVAL,
 510                                            RTE_FLOW_ERROR_TYPE_ITEM, item,
 511                                            "Not support range");
 512                         return -rte_errno;
 513                 }
 514
 515                 switch (item->type) {
 516                 case RTE_FLOW_ITEM_TYPE_GTPU:
 517                         *phint |= IAVF_PHINT_GTPU;
 518                         break;
 519                 case RTE_FLOW_ITEM_TYPE_GTP_PSC:
 520                         *phint |= IAVF_PHINT_GTPU_EH;
 521                         psc = item->spec;
 522                         if (!psc)
 523                                 break;
 524                         else if (psc->pdu_type == IAVF_GTPU_EH_UPLINK)
 525                                 *phint |= IAVF_PHINT_GTPU_EH_UP;
 526                         else if (psc->pdu_type == IAVF_GTPU_EH_DWNLINK)
 527                                 *phint |= IAVF_PHINT_GTPU_EH_DWN;
 528                         break;
 529                 default:
 530                         break;
 531                 }
 532         }
 533
 534         /* update and restore pattern hint */
 535         *phint |= *(uint64_t *)(pattern_match_item->meta);
 536
 537         return 0;
 538 }
 539
 540 /* refine proto hdrs base on l2, l3, l4 rss type */
 541 static void
 542 iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 543                             uint64_t rss_type)
 544 {
 545         struct virtchnl_proto_hdr *hdr;
 546         int i;
 547
 548         for (i = 0; i < proto_hdrs->count; i++) {
 549                 hdr = &proto_hdrs->proto_hdr[i];
 550                 switch (hdr->type) {
 551                 case VIRTCHNL_PROTO_HDR_ETH:
 552                         if (!(rss_type & ETH_RSS_ETH))
 553                                 hdr->field_selector = 0;
 554                         else if (rss_type & ETH_RSS_L2_SRC_ONLY)
 555                                 VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 556                                         VIRTCHNL_PROTO_HDR_ETH_DST);
 557                         else if (rss_type & ETH_RSS_L2_DST_ONLY)
 558                                 VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 559                                         VIRTCHNL_PROTO_HDR_ETH_SRC);
 560                         break;
 561                 case VIRTCHNL_PROTO_HDR_IPV4:
 562                         if (rss_type &
 563                             (ETH_RSS_IPV4 |
 564                              ETH_RSS_NONFRAG_IPV4_UDP |
 565                              ETH_RSS_NONFRAG_IPV4_TCP |
 566                              ETH_RSS_NONFRAG_IPV4_SCTP)) {
 567                                 if (rss_type & ETH_RSS_L3_SRC_ONLY)
 568                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 569                                                 VIRTCHNL_PROTO_HDR_IPV4_DST);
 570                                 else if (rss_type & ETH_RSS_L3_DST_ONLY)
 571                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 572                                                 VIRTCHNL_PROTO_HDR_IPV4_SRC);
 573                                 else if (rss_type &
 574                                          (ETH_RSS_L4_SRC_ONLY |
 575                                           ETH_RSS_L4_DST_ONLY))
 576                                         hdr->field_selector = 0;
 577                         } else {
 578                                 hdr->field_selector = 0;
 579                         }
 580                         break;
 581                 case VIRTCHNL_PROTO_HDR_IPV6:
 582                         if (rss_type &
 583                             (ETH_RSS_IPV6 |
 584                              ETH_RSS_NONFRAG_IPV6_UDP |
 585                              ETH_RSS_NONFRAG_IPV6_TCP |
 586                              ETH_RSS_NONFRAG_IPV6_SCTP)) {
 587                                 if (rss_type & ETH_RSS_L3_SRC_ONLY)
 588                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 589                                                 VIRTCHNL_PROTO_HDR_IPV6_DST);
 590                                 else if (rss_type & ETH_RSS_L3_DST_ONLY)
 591                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 592                                                 VIRTCHNL_PROTO_HDR_IPV6_SRC);
 593                                 else if (rss_type &
 594                                          (ETH_RSS_L4_SRC_ONLY |
 595                                           ETH_RSS_L4_DST_ONLY))
 596                                         hdr->field_selector = 0;
 597                         } else {
 598                                 hdr->field_selector = 0;
 599                         }
 600                         break;
 601                 case VIRTCHNL_PROTO_HDR_UDP:
 602                         if (rss_type &
 603                             (ETH_RSS_NONFRAG_IPV4_UDP |
 604                              ETH_RSS_NONFRAG_IPV6_UDP)) {
 605                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 606                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 607                                             VIRTCHNL_PROTO_HDR_UDP_DST_PORT);
 608                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 609                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 610                                             VIRTCHNL_PROTO_HDR_UDP_SRC_PORT);
 611                                 else if (rss_type &
 612                                          (ETH_RSS_L3_SRC_ONLY |
 613                                           ETH_RSS_L3_DST_ONLY))
 614                                         hdr->field_selector = 0;
 615                         } else {
 616                                 hdr->field_selector = 0;
 617                         }
 618                         break;
 619                 case VIRTCHNL_PROTO_HDR_TCP:
 620                         if (rss_type &
 621                             (ETH_RSS_NONFRAG_IPV4_TCP |
 622                              ETH_RSS_NONFRAG_IPV6_TCP)) {
 623                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 624                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 625                                             VIRTCHNL_PROTO_HDR_TCP_DST_PORT);
 626                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 627                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 628                                             VIRTCHNL_PROTO_HDR_TCP_SRC_PORT);
 629                                 else if (rss_type &
 630                                          (ETH_RSS_L3_SRC_ONLY |
 631                                           ETH_RSS_L3_DST_ONLY))
 632                                         hdr->field_selector = 0;
 633                         } else {
 634                                 hdr->field_selector = 0;
 635                         }
 636                         break;
 637                 case VIRTCHNL_PROTO_HDR_SCTP:
 638                         if (rss_type &
 639                             (ETH_RSS_NONFRAG_IPV4_SCTP |
 640                              ETH_RSS_NONFRAG_IPV6_SCTP)) {
 641                                 if (rss_type & ETH_RSS_L4_SRC_ONLY)
 642                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 643                                             VIRTCHNL_PROTO_HDR_SCTP_DST_PORT);
 644                                 else if (rss_type & ETH_RSS_L4_DST_ONLY)
 645                                         VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
 646                                             VIRTCHNL_PROTO_HDR_TCP_SRC_PORT);
 647                                 else if (rss_type &
 648                                          (ETH_RSS_L3_SRC_ONLY |
 649                                           ETH_RSS_L3_DST_ONLY))
 650                                         hdr->field_selector = 0;
 651                         } else {
 652                                 hdr->field_selector = 0;
 653                         }
 654                         break;
 655                 case VIRTCHNL_PROTO_HDR_S_VLAN:
 656                         if (!(rss_type & ETH_RSS_S_VLAN))
 657                                 hdr->field_selector = 0;
 658                         break;
 659                 case VIRTCHNL_PROTO_HDR_C_VLAN:
 660                         if (!(rss_type & ETH_RSS_C_VLAN))
 661                                 hdr->field_selector = 0;
 662                         break;
 663                 case VIRTCHNL_PROTO_HDR_L2TPV3:
 664                         if (!(rss_type & ETH_RSS_L2TPV3))
 665                                 hdr->field_selector = 0;
 666                         break;
 667                 case VIRTCHNL_PROTO_HDR_ESP:
 668                         if (!(rss_type & ETH_RSS_ESP))
 669                                 hdr->field_selector = 0;
 670                         break;
 671                 case VIRTCHNL_PROTO_HDR_AH:
 672                         if (!(rss_type & ETH_RSS_AH))
 673                                 hdr->field_selector = 0;
 674                         break;
 675                 case VIRTCHNL_PROTO_HDR_PFCP:
 676                         if (!(rss_type & ETH_RSS_PFCP))
 677                                 hdr->field_selector = 0;
 678                         break;
 679                 default:
 680                         break;
 681                 }
 682         }
 683 }
 684
 685 /* refine proto hdrs base on gtpu rss type */
 686 static void
 687 iavf_refine_proto_hdrs_gtpu(struct virtchnl_proto_hdrs *proto_hdrs,
 688                             uint64_t rss_type)
 689 {
 690         struct virtchnl_proto_hdr *hdr;
 691         int i;
 692
 693         if (!(rss_type & ETH_RSS_GTPU))
 694                 return;
 695
 696         for (i = 0; i < proto_hdrs->count; i++) {
 697                 hdr = &proto_hdrs->proto_hdr[i];
 698                 switch (hdr->type) {
 699                 case VIRTCHNL_PROTO_HDR_GTPU_IP:
 700                         VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr,
 701                                 VIRTCHNL_PROTO_HDR_GTPU_IP_TEID);
 702                         break;
 703                 default:
 704                         break;
 705                 }
 706         }
 707 }
 708
 709 static void
 710 iavf_refine_proto_hdrs_by_pattern(struct virtchnl_proto_hdrs *proto_hdrs,
 711                                   uint64_t phint)
 712 {
 713         struct virtchnl_proto_hdr *hdr1;
 714         struct virtchnl_proto_hdr *hdr2;
 715         int i;
 716
 717         if (!(phint & IAVF_PHINT_GTPU_MSK) ||
 718             proto_hdrs->tunnel_level == 0)
 719                 return;
 720
 721         /* shift headers 1 layer */
 722         for (i = proto_hdrs->count; i > 0; i--) {
 723                 hdr1 = &proto_hdrs->proto_hdr[i];
 724                 hdr2 = &proto_hdrs->proto_hdr[i - 1];
 725
 726                 *hdr1 = *hdr2;
 727         }
 728
 729         /* adding gtpu header at layer 0 */
 730         proto_hdrs->count++;
 731         hdr1 = &proto_hdrs->proto_hdr[0];
 732         hdr1->field_selector = 0;
 733
 734         if (phint & IAVF_PHINT_GTPU_EH_DWN)
 735                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_DWN);
 736         else if (phint & IAVF_PHINT_GTPU_EH_UP)
 737                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_UP);
 738         else if (phint & IAVF_PHINT_GTPU_EH)
 739                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH);
 740         else if (phint & IAVF_PHINT_GTPU)
 741                 VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_IP);
 742 }
 743
 744 static void iavf_refine_proto_hdrs(struct virtchnl_proto_hdrs *proto_hdrs,
 745                                    uint64_t rss_type, uint64_t phint)
 746 {
 747         iavf_refine_proto_hdrs_l234(proto_hdrs, rss_type);
 748         iavf_refine_proto_hdrs_by_pattern(proto_hdrs, phint);
 749         iavf_refine_proto_hdrs_gtpu(proto_hdrs, rss_type);
 750 }
 751
 752 static uint64_t invalid_rss_comb[] = {
 753         ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP,
 754         ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP,
 755         RTE_ETH_RSS_L3_PRE32 | RTE_ETH_RSS_L3_PRE40 |
 756         RTE_ETH_RSS_L3_PRE48 | RTE_ETH_RSS_L3_PRE56 |
 757         RTE_ETH_RSS_L3_PRE96
 758 };
 759
 760 static bool
 761 iavf_any_invalid_rss_type(uint64_t rss_type, uint64_t allow_rss_type)
 762 {
 763         uint32_t i;
 764
 765         /* check invalid combination */
 766         for (i = 0; i < RTE_DIM(invalid_rss_comb); i++) {
 767                 if (__builtin_popcountll(rss_type & invalid_rss_comb[i]) > 1)
 768                         return true;
 769         }
 770
 771         /* check not allowed RSS type */
 772 #define _RSS_ATTR_ (ETH_RSS_L3_SRC_ONLY         | \
 773                     ETH_RSS_L3_DST_ONLY         | \
 774                     ETH_RSS_L4_SRC_ONLY         | \
 775                     ETH_RSS_L4_DST_ONLY         | \
 776                     ETH_RSS_L2_SRC_ONLY         | \
 777                     ETH_RSS_L2_DST_ONLY         | \
 778                     RTE_ETH_RSS_L3_PRE32        | \
 779                     RTE_ETH_RSS_L3_PRE40        | \
 780                     RTE_ETH_RSS_L3_PRE48        | \
 781                     RTE_ETH_RSS_L3_PRE56        | \
 782                     RTE_ETH_RSS_L3_PRE64        | \
 783                     RTE_ETH_RSS_L3_PRE96)
 784
 785         rss_type &= ~_RSS_ATTR_;
 786
 787         return ((rss_type & allow_rss_type) != rss_type);
 788 }
 789
 790 static int
 791 iavf_hash_parse_action(struct iavf_pattern_match_item *match_item,
 792                        const struct rte_flow_action actions[],
 793                        uint64_t pattern_hint, void **meta,
 794                        struct rte_flow_error *error)
 795 {
 796         struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)*meta;
 797         struct virtchnl_proto_hdrs *proto_hdrs;
 798         enum rte_flow_action_type action_type;
 799         const struct rte_flow_action_rss *rss;
 800         const struct rte_flow_action *action;
 801         uint64_t rss_type;
 802
 803         /* Supported action is RSS. */
 804         for (action = actions; action->type !=
 805                 RTE_FLOW_ACTION_TYPE_END; action++) {
 806                 action_type = action->type;
 807                 switch (action_type) {
 808                 case RTE_FLOW_ACTION_TYPE_RSS:
 809                         rss = action->conf;
 810                         rss_type = rss->types;
 811
 812                         if (rss->func ==
 813                             RTE_ETH_HASH_FUNCTION_SIMPLE_XOR){
 814                                 rss_meta->rss_algorithm =
 815                                         VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC;
 816                                 return rte_flow_error_set(error, ENOTSUP,
 817                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 818                                         "function simple_xor is not supported");
 819                         } else if (rss->func ==
 820                                    RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
 821                                 rss_meta->rss_algorithm =
 822                                         VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
 823                         } else {
 824                                 rss_meta->rss_algorithm =
 825                                         VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
 826                         }
 827
 828                         if (rss->level)
 829                                 return rte_flow_error_set(error, ENOTSUP,
 830                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 831                                         "a nonzero RSS encapsulation level is not supported");
 832
 833                         if (rss->key_len)
 834                                 return rte_flow_error_set(error, ENOTSUP,
 835                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 836                                         "a nonzero RSS key_len is not supported");
 837
 838                         if (rss->queue_num)
 839                                 return rte_flow_error_set(error, ENOTSUP,
 840                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 841                                         "a non-NULL RSS queue is not supported");
 842
 843                         /**
 844                          * Check simultaneous use of SRC_ONLY and DST_ONLY
 845                          * of the same level.
 846                          */
 847                         rss_type = rte_eth_rss_hf_refine(rss_type);
 848
 849                         if (iavf_any_invalid_rss_type(rss_type,
 850                                         match_item->input_set_mask))
 851                                 return rte_flow_error_set(error, ENOTSUP,
 852                                                 RTE_FLOW_ERROR_TYPE_ACTION,
 853                                                 action, "RSS type not supported");
 854                         proto_hdrs = match_item->meta;
 855                         rss_meta->proto_hdrs = *proto_hdrs;
 856                         iavf_refine_proto_hdrs(&rss_meta->proto_hdrs,
 857                                                rss_type, pattern_hint);
 858                         break;
 859
 860                 case RTE_FLOW_ACTION_TYPE_END:
 861                         break;
 862
 863                 default:
 864                         rte_flow_error_set(error, EINVAL,
 865                                            RTE_FLOW_ERROR_TYPE_ACTION, action,
 866                                            "Invalid action.");
 867                         return -rte_errno;
 868                 }
 869         }
 870
 871         return 0;
 872 }
 873
 874 static int
 875 iavf_hash_parse_pattern_action(__rte_unused struct iavf_adapter *ad,
 876                                struct iavf_pattern_match_item *array,
 877                                uint32_t array_len,
 878                                const struct rte_flow_item pattern[],
 879                                const struct rte_flow_action actions[],
 880                                void **meta,
 881                                struct rte_flow_error *error)
 882 {
 883         struct iavf_pattern_match_item *pattern_match_item;
 884         struct iavf_rss_meta *rss_meta_ptr;
 885         uint64_t phint = IAVF_PHINT_NONE;
 886         int ret = 0;
 887
 888         rss_meta_ptr = rte_zmalloc(NULL, sizeof(*rss_meta_ptr), 0);
 889         if (!rss_meta_ptr) {
 890                 rte_flow_error_set(error, EINVAL,
 891                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 892                                    "No memory for rss_meta_ptr");
 893                 return -ENOMEM;
 894         }
 895
 896         /* Check rss supported pattern and find matched pattern. */
 897         pattern_match_item =
 898                 iavf_search_pattern_match_item(pattern, array, array_len,
 899                                                error);
 900         if (!pattern_match_item) {
 901                 ret = -rte_errno;
 902                 goto error;
 903         }
 904
 905         ret = iavf_hash_parse_pattern(pattern_match_item, pattern, &phint,
 906                                       error);
 907         if (ret)
 908                 goto error;
 909
 910         ret = iavf_hash_parse_action(pattern_match_item, actions, phint,
 911                                      (void **)&rss_meta_ptr, error);
 912
 913 error:
 914         if (!ret && meta)
 915                 *meta = rss_meta_ptr;
 916         else
 917                 rte_free(rss_meta_ptr);
 918
 919         rte_free(pattern_match_item);
 920
 921         return ret;
 922 }
 923
 924 static int
 925 iavf_hash_create(__rte_unused struct iavf_adapter *ad,
 926                  __rte_unused struct rte_flow *flow, void *meta,
 927                  __rte_unused struct rte_flow_error *error)
 928 {
 929         struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)meta;
 930         struct virtchnl_rss_cfg *rss_cfg;
 931         int ret = 0;
 932
 933         rss_cfg = rte_zmalloc("iavf rss rule",
 934                               sizeof(struct virtchnl_rss_cfg), 0);
 935         if (!rss_cfg) {
 936                 rte_flow_error_set(error, EINVAL,
 937                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 938                                    "No memory for rss rule");
 939                 return -ENOMEM;
 940         }
 941
 942         rss_cfg->proto_hdrs = rss_meta->proto_hdrs;
 943         rss_cfg->rss_algorithm = rss_meta->rss_algorithm;
 944
 945         ret = iavf_add_del_rss_cfg(ad, rss_cfg, true);
 946         if (!ret) {
 947                 flow->rule = rss_cfg;
 948         } else {
 949                 PMD_DRV_LOG(ERR, "fail to add RSS configure");
 950                 rte_flow_error_set(error, -ret,
 951                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 952                                    "Failed to add rss rule.");
 953                 rte_free(rss_cfg);
 954                 return -rte_errno;
 955         }
 956
 957         rte_free(meta);
 958
 959         return ret;
 960 }
 961
 962 static int
 963 iavf_hash_destroy(__rte_unused struct iavf_adapter *ad,
 964                   struct rte_flow *flow,
 965                   __rte_unused struct rte_flow_error *error)
 966 {
 967         struct virtchnl_rss_cfg *rss_cfg;
 968         int ret = 0;
 969
 970         rss_cfg = (struct virtchnl_rss_cfg *)flow->rule;
 971
 972         ret = iavf_add_del_rss_cfg(ad, rss_cfg, false);
 973         if (ret) {
 974                 PMD_DRV_LOG(ERR, "fail to del RSS configure");
 975                 rte_flow_error_set(error, -ret,
 976                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 977                                    "Failed to delete rss rule.");
 978                 return -rte_errno;
 979         }
 980         return ret;
 981 }
 982
 983 static void
 984 iavf_hash_uninit(struct iavf_adapter *ad)
 985 {
 986         struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
 987
 988         if (vf->vf_reset)
 989                 return;
 990
 991         if (iavf_hash_default_set(ad, false))
 992                 PMD_DRV_LOG(ERR, "fail to delete default RSS");
 993
 994         iavf_unregister_parser(&iavf_hash_parser, ad);
 995 }
 996
 997 static void
 998 iavf_hash_free(struct rte_flow *flow)
 999 {
1000         rte_free(flow->rule);
1001 }