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 | ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_IPV4};
  83 struct rss_type_match_hdr hint_2 = {
  84         ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_UDP |
  85         ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_NONFRAG_IPV4_UDP};
  86 struct rss_type_match_hdr hint_3 = {
  87         ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_TCP |
  88         ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_NONFRAG_IPV4_TCP};
  89 struct rss_type_match_hdr hint_4 = {
  90         ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_SCTP |
  91         ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_NONFRAG_IPV4_SCTP};
  92 struct rss_type_match_hdr hint_5 = {
  93         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_IPV6};
  94 struct rss_type_match_hdr hint_6 = {
  95         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_UDP |
  96         ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_NONFRAG_IPV6_UDP};
  97 struct rss_type_match_hdr hint_7 = {
  98         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_TCP |
  99         ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_NONFRAG_IPV6_TCP};
 100 struct rss_type_match_hdr hint_8 = {
 101         ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_SCTP |
 102         ICE_FLOW_SEG_HDR_IPV_OTHER, ETH_RSS_NONFRAG_IPV6_SCTP};
 103 struct rss_type_match_hdr hint_9 = {
 104         ICE_FLOW_SEG_HDR_GTPU_EH, ETH_RSS_IPV4};
 105 struct rss_type_match_hdr hint_10 = {
 106         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_IPV4};
 107 struct rss_type_match_hdr hint_11 = {
 108         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_NONFRAG_IPV4_UDP};
 109 struct rss_type_match_hdr hint_12 = {
 110         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_NONFRAG_IPV4_TCP};
 111 struct rss_type_match_hdr hint_13 = {
 112         ICE_FLOW_SEG_HDR_PPPOE, ETH_RSS_NONFRAG_IPV4_SCTP};
 113 struct rss_type_match_hdr hint_14 = {
 114         ICE_FLOW_SEG_HDR_GTPU_EH, ETH_RSS_NONFRAG_IPV4_UDP};
 115 struct rss_type_match_hdr hint_15 = {
 116         ICE_FLOW_SEG_HDR_GTPU_EH, ETH_RSS_NONFRAG_IPV4_TCP};
 117
 118 /* Supported pattern for os default package. */
 119 static struct ice_pattern_match_item ice_hash_pattern_list_os[] = {
 120         {pattern_eth_ipv4,      ICE_INSET_NONE, &hint_1},
 121         {pattern_eth_ipv4_udp,  ICE_INSET_NONE, &hint_2},
 122         {pattern_eth_ipv4_tcp,  ICE_INSET_NONE, &hint_3},
 123         {pattern_eth_ipv4_sctp, ICE_INSET_NONE, &hint_4},
 124         {pattern_eth_ipv6,      ICE_INSET_NONE, &hint_5},
 125         {pattern_eth_ipv6_udp,  ICE_INSET_NONE, &hint_6},
 126         {pattern_eth_ipv6_tcp,  ICE_INSET_NONE, &hint_7},
 127         {pattern_eth_ipv6_sctp, ICE_INSET_NONE, &hint_8},
 128         {pattern_empty,         ICE_INSET_NONE, &hint_0},
 129 };
 130
 131 /* Supported pattern for comms package. */
 132 static struct ice_pattern_match_item ice_hash_pattern_list_comms[] = {
 133         {pattern_eth_ipv4,                  ICE_INSET_NONE,  &hint_1},
 134         {pattern_eth_ipv4_udp,              ICE_INSET_NONE,  &hint_2},
 135         {pattern_eth_ipv4_tcp,              ICE_INSET_NONE,  &hint_3},
 136         {pattern_eth_ipv4_sctp,             ICE_INSET_NONE,  &hint_4},
 137         {pattern_eth_ipv6,                  ICE_INSET_NONE,  &hint_5},
 138         {pattern_eth_ipv6_udp,              ICE_INSET_NONE,  &hint_6},
 139         {pattern_eth_ipv6_tcp,              ICE_INSET_NONE,  &hint_7},
 140         {pattern_eth_ipv6_sctp,             ICE_INSET_NONE,  &hint_8},
 141         {pattern_empty,                     ICE_INSET_NONE,  &hint_0},
 142         {pattern_eth_ipv4_gtpu_eh_ipv4,     ICE_INSET_NONE,  &hint_9},
 143         {pattern_eth_ipv4_gtpu_eh_ipv4_udp, ICE_INSET_NONE,  &hint_14},
 144         {pattern_eth_ipv4_gtpu_eh_ipv4_tcp, ICE_INSET_NONE,  &hint_15},
 145         {pattern_eth_pppoes_ipv4,           ICE_INSET_NONE,  &hint_10},
 146         {pattern_eth_pppoes_ipv4_udp,       ICE_INSET_NONE,  &hint_11},
 147         {pattern_eth_pppoes_ipv4_tcp,       ICE_INSET_NONE,  &hint_12},
 148         {pattern_eth_pppoes_ipv4_sctp,      ICE_INSET_NONE,  &hint_13},
 149 };
 150
 151 /**
 152  * The first member is input set combination,
 153  * the second member is hash fields.
 154  */
 155 struct ice_hash_match_type ice_hash_type_list[] = {
 156         {ETH_RSS_IPV4 | ETH_RSS_L3_SRC_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 157         {ETH_RSS_IPV4 | ETH_RSS_L3_DST_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 158         {ETH_RSS_IPV4,                                                          ICE_FLOW_HASH_IPV4},
 159         {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)},
 160         {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)},
 161         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 162         {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)},
 163         {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)},
 164         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 165         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 166         {ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 167         {ETH_RSS_NONFRAG_IPV4_UDP,                                              ICE_HASH_UDP_IPV4},
 168         {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)},
 169         {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)},
 170         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 171         {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)},
 172         {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)},
 173         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 174         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 175         {ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 176         {ETH_RSS_NONFRAG_IPV4_TCP,                                              ICE_HASH_TCP_IPV4},
 177         {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)},
 178         {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)},
 179         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
 180         {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)},
 181         {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)},
 182         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L3_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
 183         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L4_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 184         {ETH_RSS_NONFRAG_IPV4_SCTP | ETH_RSS_L4_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 185         {ETH_RSS_NONFRAG_IPV4_SCTP,                                             ICE_HASH_SCTP_IPV4},
 186         {ETH_RSS_IPV6 | ETH_RSS_L3_SRC_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 187         {ETH_RSS_IPV6 | ETH_RSS_L3_DST_ONLY,                                    BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 188         {ETH_RSS_IPV6,                                                          ICE_FLOW_HASH_IPV6},
 189         {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)},
 190         {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)},
 191         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 192         {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)},
 193         {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)},
 194         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 195         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 196         {ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 197         {ETH_RSS_NONFRAG_IPV6_UDP,                                              ICE_HASH_UDP_IPV6},
 198         {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)},
 199         {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)},
 200         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 201         {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)},
 202         {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)},
 203         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L3_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 204         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L4_SRC_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 205         {ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_L4_DST_ONLY,                        BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 206         {ETH_RSS_NONFRAG_IPV6_TCP,                                              ICE_HASH_TCP_IPV6},
 207         {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)},
 208         {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)},
 209         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 210         {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)},
 211         {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)},
 212         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L3_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 213         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L4_SRC_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 214         {ETH_RSS_NONFRAG_IPV6_SCTP | ETH_RSS_L4_DST_ONLY,                       BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 215         {ETH_RSS_NONFRAG_IPV6_SCTP,                                             ICE_HASH_SCTP_IPV6},
 216 };
 217
 218 static struct ice_flow_engine ice_hash_engine = {
 219         .init = ice_hash_init,
 220         .create = ice_hash_create,
 221         .destroy = ice_hash_destroy,
 222         .uninit = ice_hash_uninit,
 223         .free = ice_hash_free,
 224         .type = ICE_FLOW_ENGINE_HASH,
 225 };
 226
 227 /* Register parser for os package. */
 228 static struct ice_flow_parser ice_hash_parser_os = {
 229         .engine = &ice_hash_engine,
 230         .array = ice_hash_pattern_list_os,
 231         .array_len = RTE_DIM(ice_hash_pattern_list_os),
 232         .parse_pattern_action = ice_hash_parse_pattern_action,
 233         .stage = ICE_FLOW_STAGE_RSS,
 234 };
 235
 236 /* Register parser for comms package. */
 237 static struct ice_flow_parser ice_hash_parser_comms = {
 238         .engine = &ice_hash_engine,
 239         .array = ice_hash_pattern_list_comms,
 240         .array_len = RTE_DIM(ice_hash_pattern_list_comms),
 241         .parse_pattern_action = ice_hash_parse_pattern_action,
 242         .stage = ICE_FLOW_STAGE_RSS,
 243 };
 244
 245 RTE_INIT(ice_hash_engine_init)
 246 {
 247         struct ice_flow_engine *engine = &ice_hash_engine;
 248         ice_register_flow_engine(engine);
 249 }
 250
 251 static int
 252 ice_hash_init(struct ice_adapter *ad)
 253 {
 254         struct ice_flow_parser *parser = NULL;
 255
 256         if (ad->hw.dcf_enabled)
 257                 return 0;
 258
 259         if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
 260                 parser = &ice_hash_parser_os;
 261         else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
 262                 parser = &ice_hash_parser_comms;
 263         else
 264                 return -EINVAL;
 265
 266         return ice_register_parser(parser, ad);
 267 }
 268
 269 static int
 270 ice_hash_check_inset(const struct rte_flow_item pattern[],
 271                 struct rte_flow_error *error)
 272 {
 273         const struct rte_flow_item *item = pattern;
 274
 275         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 276                 if (item->last) {
 277                         rte_flow_error_set(error, EINVAL,
 278                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
 279                                         "Not support range");
 280                         return -rte_errno;
 281                 }
 282
 283                 /* Ignore spec and mask. */
 284                 if (item->spec || item->mask) {
 285                         rte_flow_error_set(error, EINVAL,
 286                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
 287                                         "Invalid spec/mask.");
 288                         return -rte_errno;
 289                 }
 290         }
 291
 292         return 0;
 293 }
 294
 295 static int
 296 ice_hash_parse_action(struct ice_pattern_match_item *pattern_match_item,
 297                 const struct rte_flow_action actions[],
 298                 void **meta,
 299                 struct rte_flow_error *error)
 300 {
 301         const struct rte_flow_action *action;
 302         enum rte_flow_action_type action_type;
 303         const struct rte_flow_action_rss *rss;
 304         struct rss_type_match_hdr *m = (struct rss_type_match_hdr *)
 305                                 (pattern_match_item->meta);
 306         uint32_t type_list_len = RTE_DIM(ice_hash_type_list);
 307         struct ice_hash_match_type *type_match_item;
 308         uint64_t rss_hf;
 309         uint16_t i;
 310
 311         /* Supported action is RSS. */
 312         for (action = actions; action->type !=
 313                 RTE_FLOW_ACTION_TYPE_END; action++) {
 314                 action_type = action->type;
 315                 switch (action_type) {
 316                 case RTE_FLOW_ACTION_TYPE_RSS:
 317                         rss = action->conf;
 318                         rss_hf = rss->types;
 319
 320                         /**
 321                          * Check simultaneous use of SRC_ONLY and DST_ONLY
 322                          * of the same level.
 323                          */
 324                         rss_hf = rte_eth_rss_hf_refine(rss_hf);
 325
 326                         /* Check if pattern is empty. */
 327                         if (pattern_match_item->pattern_list !=
 328                                 pattern_empty && rss->func ==
 329                                 RTE_ETH_HASH_FUNCTION_SIMPLE_XOR)
 330                                 return rte_flow_error_set(error, ENOTSUP,
 331                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 332                                         "Not supported flow");
 333
 334                         /* Check if rss types match pattern. */
 335                         if (rss->func != RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
 336                                 if (((rss_hf & ETH_RSS_IPV4) != m->eth_rss_hint) &&
 337                                 ((rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) != m->eth_rss_hint) &&
 338                                 ((rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) != m->eth_rss_hint) &&
 339                                 ((rss_hf & ETH_RSS_NONFRAG_IPV4_SCTP) != m->eth_rss_hint) &&
 340                                 ((rss_hf & ETH_RSS_IPV6) != m->eth_rss_hint) &&
 341                                 ((rss_hf & ETH_RSS_NONFRAG_IPV6_UDP) != m->eth_rss_hint) &&
 342                                 ((rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) != m->eth_rss_hint) &&
 343                                 ((rss_hf & ETH_RSS_NONFRAG_IPV6_SCTP) != m->eth_rss_hint))
 344                                         return rte_flow_error_set(error,
 345                                         ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 346                                         action, "Not supported RSS types");
 347                         }
 348
 349                         if (rss->level)
 350                                 return rte_flow_error_set(error, ENOTSUP,
 351                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 352                                         "a nonzero RSS encapsulation level is not supported");
 353
 354                         if (rss->key_len)
 355                                 return rte_flow_error_set(error, ENOTSUP,
 356                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 357                                         "a nonzero RSS key_len is not supported");
 358
 359                         if (rss->queue)
 360                                 return rte_flow_error_set(error, ENOTSUP,
 361                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 362                                         "a non-NULL RSS queue is not supported");
 363
 364                         /* Check hash function and save it to rss_meta. */
 365                         if (rss->func ==
 366                                 RTE_ETH_HASH_FUNCTION_SIMPLE_XOR)
 367                                 ((struct rss_meta *)*meta)->hash_function =
 368                                 RTE_ETH_HASH_FUNCTION_SIMPLE_XOR;
 369
 370                         if (rss->func ==
 371                                 RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
 372                                 ((struct rss_meta *)*meta)->hash_function =
 373                                 RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ;
 374
 375                         type_match_item = rte_zmalloc("ice_type_match_item",
 376                                         sizeof(struct ice_hash_match_type), 0);
 377                         if (!type_match_item) {
 378                                 rte_flow_error_set(error, EINVAL,
 379                                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 380                                         "No memory for type_match_item");
 381                                 return -ENOMEM;
 382                         }
 383
 384                         /* Find matched hash fields according to hash type. */
 385                         for (i = 0; i < type_list_len; i++) {
 386                                 if (rss_hf ==
 387                                         ice_hash_type_list[i].hash_type) {
 388                                         type_match_item->hash_type =
 389                                                 ice_hash_type_list[i].hash_type;
 390                                         type_match_item->hash_flds =
 391                                                 ice_hash_type_list[i].hash_flds;
 392                                 }
 393                         }
 394
 395                         /* Save hash fileds to rss_meta. */
 396                         ((struct rss_meta *)*meta)->hash_flds =
 397                                         type_match_item->hash_flds;
 398
 399                         rte_free(type_match_item);
 400                         break;
 401
 402                 case RTE_FLOW_ACTION_TYPE_END:
 403                         break;
 404
 405                 default:
 406                         rte_flow_error_set(error, EINVAL,
 407                                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 408                                         "Invalid action.");
 409                         return -rte_errno;
 410                 }
 411         }
 412
 413         return 0;
 414 }
 415
 416 static int
 417 ice_hash_parse_pattern_action(__rte_unused struct ice_adapter *ad,
 418                         struct ice_pattern_match_item *array,
 419                         uint32_t array_len,
 420                         const struct rte_flow_item pattern[],
 421                         const struct rte_flow_action actions[],
 422                         void **meta,
 423                         struct rte_flow_error *error)
 424 {
 425         int ret = 0;
 426         struct ice_pattern_match_item *pattern_match_item;
 427         struct rss_meta *rss_meta_ptr;
 428
 429         rss_meta_ptr = rte_zmalloc(NULL, sizeof(*rss_meta_ptr), 0);
 430         if (!rss_meta_ptr) {
 431                 rte_flow_error_set(error, EINVAL,
 432                                 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 433                                 "No memory for rss_meta_ptr");
 434                 return -ENOMEM;
 435         }
 436
 437         /* Check rss supported pattern and find matched pattern. */
 438         pattern_match_item = ice_search_pattern_match_item(pattern,
 439                                         array, array_len, error);
 440         if (!pattern_match_item) {
 441                 ret = -rte_errno;
 442                 goto error;
 443         }
 444
 445         ret = ice_hash_check_inset(pattern, error);
 446         if (ret)
 447                 goto error;
 448
 449         /* Save protocol header to rss_meta. */
 450         rss_meta_ptr->pkt_hdr = ((struct rss_type_match_hdr *)
 451                 (pattern_match_item->meta))->hdr_mask;
 452
 453         /* Check rss action. */
 454         ret = ice_hash_parse_action(pattern_match_item, actions,
 455                                     (void **)&rss_meta_ptr, error);
 456
 457 error:
 458         if (!ret && meta)
 459                 *meta = rss_meta_ptr;
 460         else
 461                 rte_free(rss_meta_ptr);
 462         rte_free(pattern_match_item);
 463
 464         return ret;
 465 }
 466
 467 static int
 468 ice_hash_create(struct ice_adapter *ad,
 469                 struct rte_flow *flow,
 470                 void *meta,
 471                 struct rte_flow_error *error)
 472 {
 473         struct ice_pf *pf = &ad->pf;
 474         struct ice_hw *hw = ICE_PF_TO_HW(pf);
 475         struct ice_vsi *vsi = pf->main_vsi;
 476         int ret;
 477         uint32_t reg;
 478         struct ice_hash_flow_cfg *filter_ptr;
 479
 480         uint32_t headermask = ((struct rss_meta *)meta)->pkt_hdr;
 481         uint64_t hash_field = ((struct rss_meta *)meta)->hash_flds;
 482         uint8_t hash_function = ((struct rss_meta *)meta)->hash_function;
 483
 484         filter_ptr = rte_zmalloc("ice_rss_filter",
 485                                 sizeof(struct ice_hash_flow_cfg), 0);
 486         if (!filter_ptr) {
 487                 rte_flow_error_set(error, EINVAL,
 488                                 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 489                                 "No memory for filter_ptr");
 490                 return -ENOMEM;
 491         }
 492
 493         if (hash_function == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
 494                 /* Enable registers for simple_xor hash function. */
 495                 reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
 496                 reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
 497                         (2 << VSIQF_HASH_CTL_HASH_SCHEME_S);
 498                 ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
 499
 500                 filter_ptr->simple_xor = 1;
 501
 502                 goto out;
 503         } else {
 504                 filter_ptr->rss_cfg.packet_hdr = headermask;
 505                 filter_ptr->rss_cfg.hashed_flds = hash_field;
 506                 filter_ptr->rss_cfg.symm =
 507                         (hash_function ==
 508                                 RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ);
 509
 510                 ret = ice_add_rss_cfg(hw, vsi->idx,
 511                                 filter_ptr->rss_cfg.hashed_flds,
 512                                 filter_ptr->rss_cfg.packet_hdr,
 513                                 filter_ptr->rss_cfg.symm);
 514                 if (ret) {
 515                         rte_flow_error_set(error, EINVAL,
 516                                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 517                                         "rss flow create fail");
 518                         goto error;
 519                 }
 520         }
 521
 522 out:
 523         flow->rule = filter_ptr;
 524         rte_free(meta);
 525         return 0;
 526
 527 error:
 528         rte_free(filter_ptr);
 529         rte_free(meta);
 530         return -rte_errno;
 531 }
 532
 533 static int
 534 ice_hash_destroy(struct ice_adapter *ad,
 535                 struct rte_flow *flow,
 536                 struct rte_flow_error *error)
 537 {
 538         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(ad);
 539         struct ice_hw *hw = ICE_PF_TO_HW(pf);
 540         struct ice_vsi *vsi = pf->main_vsi;
 541         int ret;
 542         uint32_t reg;
 543         struct ice_hash_flow_cfg *filter_ptr;
 544
 545         filter_ptr = (struct ice_hash_flow_cfg *)flow->rule;
 546
 547         if (filter_ptr->simple_xor == 1) {
 548                 /* Return to symmetric_toeplitz state. */
 549                 reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
 550                 reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
 551                         (1 << VSIQF_HASH_CTL_HASH_SCHEME_S);
 552                 ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
 553         } else {
 554                 ret = ice_rem_rss_cfg(hw, vsi->idx,
 555                                 filter_ptr->rss_cfg.hashed_flds,
 556                                 filter_ptr->rss_cfg.packet_hdr);
 557                 /* Fixme: Ignore the error if a rule does not exist.
 558                  * Currently a rule for inputset change or symm turn on/off
 559                  * will overwrite an exist rule, while application still
 560                  * have 2 rte_flow handles.
 561                  **/
 562                 if (ret && ret != ICE_ERR_DOES_NOT_EXIST) {
 563                         rte_flow_error_set(error, EINVAL,
 564                                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 565                                         "rss flow destroy fail");
 566                         goto error;
 567                 }
 568         }
 569
 570         rte_free(filter_ptr);
 571         return 0;
 572
 573 error:
 574         rte_free(filter_ptr);
 575         return -rte_errno;
 576 }
 577
 578 static void
 579 ice_hash_uninit(struct ice_adapter *ad)
 580 {
 581         if (ad->hw.dcf_enabled)
 582                 return;
 583
 584         if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
 585                 ice_unregister_parser(&ice_hash_parser_os, ad);
 586         else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
 587                 ice_unregister_parser(&ice_hash_parser_comms, ad);
 588 }
 589
 590 static void
 591 ice_hash_free(struct rte_flow *flow)
 592 {
 593         rte_free(flow->rule);
 594 }