drivers/net/ice/ice_hash.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 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 "ice_logs.h"
  23 #include "base/ice_type.h"
  24 #include "base/ice_flow.h"
  25 #include "ice_ethdev.h"
  26 #include "ice_generic_flow.h"
  27
  28 struct rss_type_match_hdr {
  29         uint32_t hdr_mask;
  30         uint64_t eth_rss_hint;
  31 };
  32
  33 struct ice_hash_match_type {
  34         uint64_t hash_type;
  35         uint64_t hash_flds;
  36 };
  37
  38 struct rss_meta {
  39         uint32_t pkt_hdr;
  40         uint64_t hash_flds;
  41         uint8_t hash_function;
  42 };
  43
  44 struct ice_hash_flow_cfg {
  45         bool simple_xor;
  46         struct ice_rss_cfg rss_cfg;
  47 };
  48
  49 static int
  50 ice_hash_init(struct ice_adapter *ad);
  51
  52 static int
  53 ice_hash_create(struct ice_adapter *ad,
  54                 struct rte_flow *flow,
  55                 void *meta,
  56                 struct rte_flow_error *error);
  57
  58 static int
  59 ice_hash_destroy(struct ice_adapter *ad,
  60                 struct rte_flow *flow,
  61                 struct rte_flow_error *error);
  62
  63 static void
  64 ice_hash_uninit(struct ice_adapter *ad);
  65
  66 static void
  67 ice_hash_free(struct rte_flow *flow);
  68
  69 static int
  70 ice_hash_parse_pattern_action(struct ice_adapter *ad,
  71                         struct ice_pattern_match_item *array,
  72                         uint32_t array_len,
  73                         const struct rte_flow_item pattern[],
  74                         const struct rte_flow_action actions[],
  75                         void **meta,
  76                         struct rte_flow_error *error);
  77
  78 /* The first member is protocol header, the second member is ETH_RSS_*. */
  79 struct rss_type_match_hdr hint_0 = {
  80         ICE_FLOW_SEG_HDR_NONE,  0};
  81 struct rss_type_match_hdr hint_1 = {
  82         ICE_FLOW_SEG_HDR_IPV4,  ETH_RSS_IPV4};
  83 struct rss_type_match_hdr hint_2 = {
  84         ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_UDP, ETH_RSS_NONFRAG_IPV4_UDP};
  85 struct rss_type_match_hdr hint_3 = {
  86         ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_TCP, ETH_RSS_NONFRAG_IPV4_TCP};
  87 struct rss_type_match_hdr hint_4 = {
  88         ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_SCTP, ETH_RSS_NONFRAG_IPV4_SCTP};
  89 struct rss_type_match_hdr hint_5 = {
  90         ICE_FLOW_SEG_HDR_IPV6,  ETH_RSS_IPV6};
  91 struct rss_type_match_hdr hint_6 = {
  92         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_UDP, ETH_RSS_NONFRAG_IPV6_UDP};
  93 struct rss_type_match_hdr hint_7 = {
  94         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_TCP, ETH_RSS_NONFRAG_IPV6_TCP};
  95 struct rss_type_match_hdr hint_8 = {
  96         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_SCTP, ETH_RSS_NONFRAG_IPV6_SCTP};
  97 struct rss_type_match_hdr hint_9 = {
  98         ICE_FLOW_SEG_HDR_GTPU_IP,       ETH_RSS_IPV4};
  99 struct rss_type_match_hdr hint_10 = {
 100         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_IPV4};
 101 struct rss_type_match_hdr hint_11 = {
 102         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_NONFRAG_IPV4_UDP};
 103 struct rss_type_match_hdr hint_12 = {
 104         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_NONFRAG_IPV4_TCP};
 105 struct rss_type_match_hdr hint_13 = {
 106         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_NONFRAG_IPV4_SCTP};
 107
 108 /* Supported pattern for os default package. */
 109 static struct ice_pattern_match_item ice_hash_pattern_list_os[] = {
 110         {pattern_eth_ipv4,      ICE_INSET_NONE, &hint_1},
 111         {pattern_eth_ipv4_udp,  ICE_INSET_NONE, &hint_2},
 112         {pattern_eth_ipv4_tcp,  ICE_INSET_NONE, &hint_3},
 113         {pattern_eth_ipv4_sctp, ICE_INSET_NONE, &hint_4},
 114         {pattern_eth_ipv6,      ICE_INSET_NONE, &hint_5},
 115         {pattern_eth_ipv6_udp,  ICE_INSET_NONE, &hint_6},
 116         {pattern_eth_ipv6_tcp,  ICE_INSET_NONE, &hint_7},
 117         {pattern_eth_ipv6_sctp, ICE_INSET_NONE, &hint_8},
 118         {pattern_empty,         ICE_INSET_NONE, &hint_0},
 119 };
 120
 121 /* Supported pattern for comms package. */
 122 static struct ice_pattern_match_item ice_hash_pattern_list_comms[] = {
 123         {pattern_eth_ipv4,                  ICE_INSET_NONE,  &hint_1},
 124         {pattern_eth_ipv4_udp,              ICE_INSET_NONE,  &hint_2},
 125         {pattern_eth_ipv4_tcp,              ICE_INSET_NONE,  &hint_3},
 126         {pattern_eth_ipv4_sctp,             ICE_INSET_NONE,  &hint_4},
 127         {pattern_eth_ipv6,                  ICE_INSET_NONE,  &hint_5},
 128         {pattern_eth_ipv6_udp,              ICE_INSET_NONE,  &hint_6},
 129         {pattern_eth_ipv6_tcp,              ICE_INSET_NONE,  &hint_7},
 130         {pattern_eth_ipv6_sctp,             ICE_INSET_NONE,  &hint_8},
 131         {pattern_empty,                     ICE_INSET_NONE,  &hint_0},
 132         {pattern_eth_ipv4_gtpu_eh_ipv4,     ICE_INSET_NONE,  &hint_9},
 133         {pattern_eth_ipv4_gtpu_eh_ipv4_udp, ICE_INSET_NONE,  &hint_9},
 134         {pattern_eth_ipv4_gtpu_eh_ipv4_tcp, ICE_INSET_NONE,  &hint_9},
 135         {pattern_eth_pppoes_ipv4,           ICE_INSET_NONE,  &hint_10},
 136         {pattern_eth_pppoes_ipv4_udp,       ICE_INSET_NONE,  &hint_11},
 137         {pattern_eth_pppoes_ipv4_tcp,       ICE_INSET_NONE,  &hint_12},
 138         {pattern_eth_pppoes_ipv4_sctp,      ICE_INSET_NONE,  &hint_13},
 139 };
 140
 141 /**
 142  * The first member is input set combination,
 143  * the second member is hash fields.
 144  */
 145 struct ice_hash_match_type ice_hash_type_list[] = {
 146         {ETH_RSS_IPV4 | ETH_RSS_L3_SRC_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 147         {ETH_RSS_IPV4 | ETH_RSS_L3_DST_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 148         {ETH_RSS_IPV4,                                                          ICE_FLOW_HASH_IPV4},
 149         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 150         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 151         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 152         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 153         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 154         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 155         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 156         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 157         {ETH_RSS_NONFRAG_IPV4_UDP,                                              ICE_HASH_UDP_IPV4},
 158         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 159         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 160         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 161         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 162         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 163         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 164         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 165         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 166         {ETH_RSS_NONFRAG_IPV4_TCP,                                              ICE_HASH_TCP_IPV4},
 167         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_SRC_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 168         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_DST_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 169         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 170         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_SRC_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 171         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_DST_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 172         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 173         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L4_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 174         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L4_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 175         {ETH_RSS_NONFRAG_IPV4_SCTP,                                             ICE_HASH_SCTP_IPV4},
 176         {ETH_RSS_IPV6 | ETH_RSS_L3_SRC_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 177         {ETH_RSS_IPV6 | ETH_RSS_L3_DST_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 178         {ETH_RSS_IPV6,                                                          ICE_FLOW_HASH_IPV6},
 179         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 180         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 181         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 182         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 183         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 184         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 185         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 186         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 187         {ETH_RSS_NONFRAG_IPV6_UDP,                                              ICE_HASH_UDP_IPV6},
 188         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 189         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 190         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 191         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_SRC_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 192         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_DST_ONLY,  BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 193         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 194         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 195         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 196         {ETH_RSS_NONFRAG_IPV6_TCP,                                              ICE_HASH_TCP_IPV6},
 197         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_SRC_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 198         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_SRC_ONLY | ETH_RSS_L4_DST_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 199         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 200         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_SRC_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 201         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_DST_ONLY | ETH_RSS_L4_DST_ONLY, BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 202         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 203         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L4_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 204         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L4_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 205         {ETH_RSS_NONFRAG_IPV6_SCTP,                                             ICE_HASH_SCTP_IPV6},
 206 };
 207
 208 static struct ice_flow_engine ice_hash_engine = {
 209         .init = ice_hash_init,
 210         .create = ice_hash_create,
 211         .destroy = ice_hash_destroy,
 212         .uninit = ice_hash_uninit,
 213         .free = ice_hash_free,
 214         .type = ICE_FLOW_ENGINE_HASH,
 215 };
 216
 217 /* Register parser for os package. */
 218 static struct ice_flow_parser ice_hash_parser_os = {
 219         .engine = &ice_hash_engine,
 220         .array = ice_hash_pattern_list_os,
 221         .array_len = RTE_DIM(ice_hash_pattern_list_os),
 222         .parse_pattern_action = ice_hash_parse_pattern_action,
 223         .stage = ICE_FLOW_STAGE_RSS,
 224 };
 225
 226 /* Register parser for comms package. */
 227 static struct ice_flow_parser ice_hash_parser_comms = {
 228         .engine = &ice_hash_engine,
 229         .array = ice_hash_pattern_list_comms,
 230         .array_len = RTE_DIM(ice_hash_pattern_list_comms),
 231         .parse_pattern_action = ice_hash_parse_pattern_action,
 232         .stage = ICE_FLOW_STAGE_RSS,
 233 };
 234
 235 RTE_INIT(ice_hash_engine_init)
 236 {
 237         struct ice_flow_engine *engine = &ice_hash_engine;
 238         ice_register_flow_engine(engine);
 239 }
 240
 241 static int
 242 ice_hash_init(struct ice_adapter *ad)
 243 {
 244         struct ice_flow_parser *parser = NULL;
 245
 246         if (ad->hw.dcf_enabled)
 247                 return 0;
 248
 249         if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
 250                 parser = &ice_hash_parser_os;
 251         else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
 252                 parser = &ice_hash_parser_comms;
 253         else
 254                 return -EINVAL;
 255
 256         return ice_register_parser(parser, ad);
 257 }
 258
 259 static int
 260 ice_hash_check_inset(const struct rte_flow_item pattern[],
 261                 struct rte_flow_error *error)
 262 {
 263         const struct rte_flow_item *item = pattern;
 264
 265         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 266                 if (item->last) {
 267                         rte_flow_error_set(error, EINVAL,
 268                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
 269                                         "Not support range");
 270                         return -rte_errno;
 271                 }
 272
 273                 /* Ignore spec and mask. */
 274                 if (item->spec || item->mask) {
 275                         rte_flow_error_set(error, EINVAL,
 276                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
 277                                         "Invalid spec/mask.");
 278                         return -rte_errno;
 279                 }
 280         }
 281
 282         return 0;
 283 }
 284
 285 static int
 286 ice_hash_parse_action(struct ice_pattern_match_item *pattern_match_item,
 287                 const struct rte_flow_action actions[],
 288                 void **meta,
 289                 struct rte_flow_error *error)
 290 {
 291         const struct rte_flow_action *action;
 292         enum rte_flow_action_type action_type;
 293         const struct rte_flow_action_rss *rss;
 294         struct rss_type_match_hdr *m = (struct rss_type_match_hdr *)
 295                                 (pattern_match_item->meta);
 296         uint32_t type_list_len = RTE_DIM(ice_hash_type_list);
 297         struct ice_hash_match_type *type_match_item;
 298         uint64_t rss_hf;
 299         uint16_t i;
 300
 301         /* Supported action is RSS. */
 302         for (action = actions; action->type !=
 303                 RTE_FLOW_ACTION_TYPE_END; action++) {
 304                 action_type = action->type;
 305                 switch (action_type) {
 306                 case RTE_FLOW_ACTION_TYPE_RSS:
 307                         rss = action->conf;
 308                         rss_hf = rss->types;
 309
 310                         /**
 311                          * Check simultaneous use of SRC_ONLY and DST_ONLY
 312                          * of the same level.
 313                          */
 314                         rss_hf = rte_eth_rss_hf_refine(rss_hf);
 315
 316                         /* Check if pattern is empty. */
 317                         if (pattern_match_item->pattern_list !=
 318                                 pattern_empty && rss->func ==
 319                                 RTE_ETH_HASH_FUNCTION_SIMPLE_XOR)
 320                                 return rte_flow_error_set(error, ENOTSUP,
 321                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 322                                         "Not supported flow");
 323
 324                         /* Check if rss types match pattern. */
 325                         if (rss->func != RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
 326                                 if (((rss_hf & ETH_RSS_IPV4) != m->eth_rss_hint) &&
 327                                 ((rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) != m->eth_rss_hint) &&
 328                                 ((rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) != m->eth_rss_hint) &&
 329                                 ((rss_hf & ETH_RSS_NONFRAG_IPV4_SCTP) != m->eth_rss_hint) &&
 330                                 ((rss_hf & ETH_RSS_IPV6) != m->eth_rss_hint) &&
 331                                 ((rss_hf & ETH_RSS_NONFRAG_IPV6_UDP) != m->eth_rss_hint) &&
 332                                 ((rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) != m->eth_rss_hint) &&
 333                                 ((rss_hf & ETH_RSS_NONFRAG_IPV6_SCTP) != m->eth_rss_hint))
 334                                         return rte_flow_error_set(error,
 335                                         ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 336                                         action, "Not supported RSS types");
 337                         }
 338
 339                         if (rss->level)
 340                                 return rte_flow_error_set(error, ENOTSUP,
 341                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 342                                         "a nonzero RSS encapsulation level is not supported");
 343
 344                         if (rss->key_len)
 345                                 return rte_flow_error_set(error, ENOTSUP,
 346                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 347                                         "a nonzero RSS key_len is not supported");
 348
 349                         if (rss->queue)
 350                                 return rte_flow_error_set(error, ENOTSUP,
 351                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 352                                         "a non-NULL RSS queue is not supported");
 353
 354                         /* Check hash function and save it to rss_meta. */
 355                         if (rss->func ==
 356                                 RTE_ETH_HASH_FUNCTION_SIMPLE_XOR)
 357                                 ((struct rss_meta *)*meta)->hash_function =
 358                                 RTE_ETH_HASH_FUNCTION_SIMPLE_XOR;
 359
 360                         if (rss->func ==
 361                                 RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
 362                                 ((struct rss_meta *)*meta)->hash_function =
 363                                 RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ;
 364
 365                         type_match_item = rte_zmalloc("ice_type_match_item",
 366                                         sizeof(struct ice_hash_match_type), 0);
 367                         if (!type_match_item) {
 368                                 rte_flow_error_set(error, EINVAL,
 369                                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 370                                         "No memory for type_match_item");
 371                                 return -ENOMEM;
 372                         }
 373
 374                         /* Find matched hash fields according to hash type. */
 375                         for (i = 0; i < type_list_len; i++) {
 376                                 if (rss_hf ==
 377                                         ice_hash_type_list[i].hash_type) {
 378                                         type_match_item->hash_type =
 379                                                 ice_hash_type_list[i].hash_type;
 380                                         type_match_item->hash_flds =
 381                                                 ice_hash_type_list[i].hash_flds;
 382                                 }
 383                         }
 384
 385                         /* Save hash fileds to rss_meta. */
 386                         ((struct rss_meta *)*meta)->hash_flds =
 387                                         type_match_item->hash_flds;
 388
 389                         rte_free(type_match_item);
 390                         break;
 391
 392                 case RTE_FLOW_ACTION_TYPE_END:
 393                         break;
 394
 395                 default:
 396                         rte_flow_error_set(error, EINVAL,
 397                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 398                                         "Invalid action.");
 399                         return -rte_errno;
 400                 }
 401         }
 402
 403         return 0;
 404 }
 405
 406 static int
 407 ice_hash_parse_pattern_action(__rte_unused struct ice_adapter *ad,
 408                         struct ice_pattern_match_item *array,
 409                         uint32_t array_len,
 410                         const struct rte_flow_item pattern[],
 411                         const struct rte_flow_action actions[],
 412                         void **meta,
 413                         struct rte_flow_error *error)
 414 {
 415         int ret = 0;
 416         struct ice_pattern_match_item *pattern_match_item;
 417         struct rss_meta *rss_meta_ptr;
 418
 419         rss_meta_ptr = rte_zmalloc(NULL, sizeof(*rss_meta_ptr), 0);
 420         if (!rss_meta_ptr) {
 421                 rte_flow_error_set(error, EINVAL,
 422                                 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 423                                 "No memory for rss_meta_ptr");
 424                 return -ENOMEM;
 425         }
 426
 427         /* Check rss supported pattern and find matched pattern. */
 428         pattern_match_item = ice_search_pattern_match_item(pattern,
 429                                         array, array_len, error);
 430         if (!pattern_match_item) {
 431                 ret = -rte_errno;
 432                 goto error;
 433         }
 434
 435         ret = ice_hash_check_inset(pattern, error);
 436         if (ret)
 437                 goto error;
 438
 439         /* Save protocol header to rss_meta. */
 440         rss_meta_ptr->pkt_hdr = ((struct rss_type_match_hdr *)
 441                 (pattern_match_item->meta))->hdr_mask;
 442
 443         /* Check rss action. */
 444         ret = ice_hash_parse_action(pattern_match_item, actions,
 445                                     (void **)&rss_meta_ptr, error);
 446
 447 error:
 448         if (!ret && meta)
 449                 *meta = rss_meta_ptr;
 450         else
 451                 rte_free(rss_meta_ptr);
 452         rte_free(pattern_match_item);
 453
 454         return ret;
 455 }
 456
 457 static int
 458 ice_hash_create(struct ice_adapter *ad,
 459                 struct rte_flow *flow,
 460                 void *meta,
 461                 struct rte_flow_error *error)
 462 {
 463         struct ice_pf *pf = &ad->pf;
 464         struct ice_hw *hw = ICE_PF_TO_HW(pf);
 465         struct ice_vsi *vsi = pf->main_vsi;
 466         int ret;
 467         uint32_t reg;
 468         struct ice_hash_flow_cfg *filter_ptr;
 469
 470         uint32_t headermask = ((struct rss_meta *)meta)->pkt_hdr;
 471         uint64_t hash_field = ((struct rss_meta *)meta)->hash_flds;
 472         uint8_t hash_function = ((struct rss_meta *)meta)->hash_function;
 473
 474         filter_ptr = rte_zmalloc("ice_rss_filter",
 475                                 sizeof(struct ice_hash_flow_cfg), 0);
 476         if (!filter_ptr) {
 477                 rte_flow_error_set(error, EINVAL,
 478                                 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 479                                 "No memory for filter_ptr");
 480                 return -ENOMEM;
 481         }
 482
 483         if (hash_function == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
 484                 /* Enable registers for simple_xor hash function. */
 485                 reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
 486                 reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
 487                         (2 << VSIQF_HASH_CTL_HASH_SCHEME_S);
 488                 ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
 489
 490                 filter_ptr->simple_xor = 1;
 491
 492                 goto out;
 493         } else {
 494                 filter_ptr->rss_cfg.packet_hdr = headermask;
 495                 filter_ptr->rss_cfg.hashed_flds = hash_field;
 496                 filter_ptr->rss_cfg.symm =
 497                         (hash_function ==
 498                                 RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ);
 499
 500                 ret = ice_add_rss_cfg(hw, vsi->idx,
 501                                 filter_ptr->rss_cfg.hashed_flds,
 502                                 filter_ptr->rss_cfg.packet_hdr,
 503                                 filter_ptr->rss_cfg.symm);
 504                 if (ret) {
 505                         rte_flow_error_set(error, EINVAL,
 506                                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 507                                         "rss flow create fail");
 508                         goto error;
 509                 }
 510         }
 511
 512 out:
 513         flow->rule = filter_ptr;
 514         rte_free(meta);
 515         return 0;
 516
 517 error:
 518         rte_free(filter_ptr);
 519         rte_free(meta);
 520         return -rte_errno;
 521 }
 522
 523 static int
 524 ice_hash_destroy(struct ice_adapter *ad,
 525                 struct rte_flow *flow,
 526                 struct rte_flow_error *error)
 527 {
 528         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(ad);
 529         struct ice_hw *hw = ICE_PF_TO_HW(pf);
 530         struct ice_vsi *vsi = pf->main_vsi;
 531         int ret;
 532         uint32_t reg;
 533         struct ice_hash_flow_cfg *filter_ptr;
 534
 535         filter_ptr = (struct ice_hash_flow_cfg *)flow->rule;
 536
 537         if (filter_ptr->simple_xor == 1) {
 538                 /* Return to symmetric_toeplitz state. */
 539                 reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
 540                 reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
 541                         (1 << VSIQF_HASH_CTL_HASH_SCHEME_S);
 542                 ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
 543         } else {
 544                 ret = ice_rem_rss_cfg(hw, vsi->idx,
 545                                 filter_ptr->rss_cfg.hashed_flds,
 546                                 filter_ptr->rss_cfg.packet_hdr);
 547                 /* Fixme: Ignore the error if a rule does not exist.
 548                  * Currently a rule for inputset change or symm turn on/off
 549                  * will overwrite an exist rule, while application still
 550                  * have 2 rte_flow handles.
 551                  **/
 552                 if (ret && ret != ICE_ERR_DOES_NOT_EXIST) {
 553                         rte_flow_error_set(error, EINVAL,
 554                                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 555                                         "rss flow destroy fail");
 556                         goto error;
 557                 }
 558         }
 559
 560         rte_free(filter_ptr);
 561         return 0;
 562
 563 error:
 564         rte_free(filter_ptr);
 565         return -rte_errno;
 566 }
 567
 568 static void
 569 ice_hash_uninit(struct ice_adapter *ad)
 570 {
 571         if (ad->hw.dcf_enabled)
 572                 return;
 573
 574         if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
 575                 ice_unregister_parser(&ice_hash_parser_os, ad);
 576         else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
 577                 ice_unregister_parser(&ice_hash_parser_comms, ad);
 578 }
 579
 580 static void
 581 ice_hash_free(struct rte_flow *flow)
 582 {
 583         rte_free(flow->rule);
 584 }