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