drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

   1 /*
   2  * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <net/flow_dissector.h>
  34 #include <net/sch_generic.h>
  35 #include <net/pkt_cls.h>
  36 #include <net/tc_act/tc_gact.h>
  37 #include <net/tc_act/tc_skbedit.h>
  38 #include <linux/mlx5/fs.h>
  39 #include <linux/mlx5/device.h>
  40 #include <linux/rhashtable.h>
  41 #include <net/switchdev.h>
  42 #include <net/tc_act/tc_mirred.h>
  43 #include <net/tc_act/tc_vlan.h>
  44 #include <net/tc_act/tc_tunnel_key.h>
  45 #include <net/vxlan.h>
  46 #include "en.h"
  47 #include "en_tc.h"
  48 #include "eswitch.h"
  49 #include "vxlan.h"
  50
  51 struct mlx5e_tc_flow {
  52         struct rhash_head       node;
  53         u64                     cookie;
  54         struct mlx5_flow_handle *rule;
  55         struct list_head        encap; /* flows sharing the same encap */
  56         struct mlx5_esw_flow_attr *attr;
  57 };
  58
  59 enum {
  60         MLX5_HEADER_TYPE_VXLAN = 0x0,
  61         MLX5_HEADER_TYPE_NVGRE = 0x1,
  62 };
  63
  64 #define MLX5E_TC_TABLE_NUM_ENTRIES 1024
  65 #define MLX5E_TC_TABLE_NUM_GROUPS 4
  66
  67 static struct mlx5_flow_handle *
  68 mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
  69                       struct mlx5_flow_spec *spec,
  70                       u32 action, u32 flow_tag)
  71 {
  72         struct mlx5_core_dev *dev = priv->mdev;
  73         struct mlx5_flow_destination dest = { 0 };
  74         struct mlx5_flow_act flow_act = {
  75                 .action = action,
  76                 .flow_tag = flow_tag,
  77                 .encap_id = 0,
  78         };
  79         struct mlx5_fc *counter = NULL;
  80         struct mlx5_flow_handle *rule;
  81         bool table_created = false;
  82
  83         if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
  84                 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
  85                 dest.ft = priv->fs.vlan.ft.t;
  86         } else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
  87                 counter = mlx5_fc_create(dev, true);
  88                 if (IS_ERR(counter))
  89                         return ERR_CAST(counter);
  90
  91                 dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
  92                 dest.counter = counter;
  93         }
  94
  95         if (IS_ERR_OR_NULL(priv->fs.tc.t)) {
  96                 priv->fs.tc.t =
  97                         mlx5_create_auto_grouped_flow_table(priv->fs.ns,
  98                                                             MLX5E_TC_PRIO,
  99                                                             MLX5E_TC_TABLE_NUM_ENTRIES,
 100                                                             MLX5E_TC_TABLE_NUM_GROUPS,
 101                                                             0, 0);
 102                 if (IS_ERR(priv->fs.tc.t)) {
 103                         netdev_err(priv->netdev,
 104                                    "Failed to create tc offload table\n");
 105                         rule = ERR_CAST(priv->fs.tc.t);
 106                         goto err_create_ft;
 107                 }
 108
 109                 table_created = true;
 110         }
 111
 112         spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
 113         rule = mlx5_add_flow_rules(priv->fs.tc.t, spec, &flow_act, &dest, 1);
 114
 115         if (IS_ERR(rule))
 116                 goto err_add_rule;
 117
 118         return rule;
 119
 120 err_add_rule:
 121         if (table_created) {
 122                 mlx5_destroy_flow_table(priv->fs.tc.t);
 123                 priv->fs.tc.t = NULL;
 124         }
 125 err_create_ft:
 126         mlx5_fc_destroy(dev, counter);
 127
 128         return rule;
 129 }
 130
 131 static struct mlx5_flow_handle *
 132 mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 133                       struct mlx5_flow_spec *spec,
 134                       struct mlx5_esw_flow_attr *attr)
 135 {
 136         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 137         int err;
 138
 139         err = mlx5_eswitch_add_vlan_action(esw, attr);
 140         if (err)
 141                 return ERR_PTR(err);
 142
 143         return mlx5_eswitch_add_offloaded_rule(esw, spec, attr);
 144 }
 145
 146 static void mlx5e_detach_encap(struct mlx5e_priv *priv,
 147                                struct mlx5e_tc_flow *flow) {
 148         struct list_head *next = flow->encap.next;
 149
 150         list_del(&flow->encap);
 151         if (list_empty(next)) {
 152                 struct mlx5_encap_entry *e;
 153
 154                 e = list_entry(next, struct mlx5_encap_entry, flows);
 155                 if (e->n) {
 156                         mlx5_encap_dealloc(priv->mdev, e->encap_id);
 157                         neigh_release(e->n);
 158                 }
 159                 hlist_del_rcu(&e->encap_hlist);
 160                 kfree(e);
 161         }
 162 }
 163
 164 static void mlx5e_tc_del_flow(struct mlx5e_priv *priv,
 165                               struct mlx5e_tc_flow *flow)
 166 {
 167         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 168         struct mlx5_fc *counter = NULL;
 169
 170         counter = mlx5_flow_rule_counter(flow->rule);
 171
 172         mlx5_del_flow_rules(flow->rule);
 173
 174         if (esw && esw->mode == SRIOV_OFFLOADS) {
 175                 mlx5_eswitch_del_vlan_action(esw, flow->attr);
 176                 if (flow->attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP)
 177                         mlx5e_detach_encap(priv, flow);
 178         }
 179
 180         mlx5_fc_destroy(priv->mdev, counter);
 181
 182         if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) {
 183                 mlx5_destroy_flow_table(priv->fs.tc.t);
 184                 priv->fs.tc.t = NULL;
 185         }
 186 }
 187
 188 static void parse_vxlan_attr(struct mlx5_flow_spec *spec,
 189                              struct tc_cls_flower_offload *f)
 190 {
 191         void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
 192                                        outer_headers);
 193         void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
 194                                        outer_headers);
 195         void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
 196                                     misc_parameters);
 197         void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
 198                                     misc_parameters);
 199
 200         MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ip_protocol);
 201         MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP);
 202
 203         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
 204                 struct flow_dissector_key_keyid *key =
 205                         skb_flow_dissector_target(f->dissector,
 206                                                   FLOW_DISSECTOR_KEY_ENC_KEYID,
 207                                                   f->key);
 208                 struct flow_dissector_key_keyid *mask =
 209                         skb_flow_dissector_target(f->dissector,
 210                                                   FLOW_DISSECTOR_KEY_ENC_KEYID,
 211                                                   f->mask);
 212                 MLX5_SET(fte_match_set_misc, misc_c, vxlan_vni,
 213                          be32_to_cpu(mask->keyid));
 214                 MLX5_SET(fte_match_set_misc, misc_v, vxlan_vni,
 215                          be32_to_cpu(key->keyid));
 216         }
 217 }
 218
 219 static int parse_tunnel_attr(struct mlx5e_priv *priv,
 220                              struct mlx5_flow_spec *spec,
 221                              struct tc_cls_flower_offload *f)
 222 {
 223         void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
 224                                        outer_headers);
 225         void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
 226                                        outer_headers);
 227
 228         struct flow_dissector_key_control *enc_control =
 229                 skb_flow_dissector_target(f->dissector,
 230                                           FLOW_DISSECTOR_KEY_ENC_CONTROL,
 231                                           f->key);
 232
 233         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) {
 234                 struct flow_dissector_key_ports *key =
 235                         skb_flow_dissector_target(f->dissector,
 236                                                   FLOW_DISSECTOR_KEY_ENC_PORTS,
 237                                                   f->key);
 238                 struct flow_dissector_key_ports *mask =
 239                         skb_flow_dissector_target(f->dissector,
 240                                                   FLOW_DISSECTOR_KEY_ENC_PORTS,
 241                                                   f->mask);
 242
 243                 /* Full udp dst port must be given */
 244                 if (memchr_inv(&mask->dst, 0xff, sizeof(mask->dst)))
 245                         goto vxlan_match_offload_err;
 246
 247                 if (mlx5e_vxlan_lookup_port(priv, be16_to_cpu(key->dst)) &&
 248                     MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap))
 249                         parse_vxlan_attr(spec, f);
 250                 else {
 251                         netdev_warn(priv->netdev,
 252                                     "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->dst));
 253                         return -EOPNOTSUPP;
 254                 }
 255
 256                 MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 257                          udp_dport, ntohs(mask->dst));
 258                 MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 259                          udp_dport, ntohs(key->dst));
 260
 261                 MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 262                          udp_sport, ntohs(mask->src));
 263                 MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 264                          udp_sport, ntohs(key->src));
 265         } else { /* udp dst port must be given */
 266 vxlan_match_offload_err:
 267                 netdev_warn(priv->netdev,
 268                             "IP tunnel decap offload supported only for vxlan, must set UDP dport\n");
 269                 return -EOPNOTSUPP;
 270         }
 271
 272         if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
 273                 struct flow_dissector_key_ipv4_addrs *key =
 274                         skb_flow_dissector_target(f->dissector,
 275                                                   FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS,
 276                                                   f->key);
 277                 struct flow_dissector_key_ipv4_addrs *mask =
 278                         skb_flow_dissector_target(f->dissector,
 279                                                   FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS,
 280                                                   f->mask);
 281                 MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 282                          src_ipv4_src_ipv6.ipv4_layout.ipv4,
 283                          ntohl(mask->src));
 284                 MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 285                          src_ipv4_src_ipv6.ipv4_layout.ipv4,
 286                          ntohl(key->src));
 287
 288                 MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 289                          dst_ipv4_dst_ipv6.ipv4_layout.ipv4,
 290                          ntohl(mask->dst));
 291                 MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 292                          dst_ipv4_dst_ipv6.ipv4_layout.ipv4,
 293                          ntohl(key->dst));
 294
 295                 MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype);
 296                 MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP);
 297         }
 298
 299         /* Enforce DMAC when offloading incoming tunneled flows.
 300          * Flow counters require a match on the DMAC.
 301          */
 302         MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16);
 303         MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0);
 304         ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 305                                      dmac_47_16), priv->netdev->dev_addr);
 306
 307         /* let software handle IP fragments */
 308         MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1);
 309         MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0);
 310
 311         return 0;
 312 }
 313
 314 static int __parse_cls_flower(struct mlx5e_priv *priv,
 315                               struct mlx5_flow_spec *spec,
 316                               struct tc_cls_flower_offload *f,
 317                               u8 *min_inline)
 318 {
 319         void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
 320                                        outer_headers);
 321         void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
 322                                        outer_headers);
 323         u16 addr_type = 0;
 324         u8 ip_proto = 0;
 325
 326         *min_inline = MLX5_INLINE_MODE_L2;
 327
 328         if (f->dissector->used_keys &
 329             ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
 330               BIT(FLOW_DISSECTOR_KEY_BASIC) |
 331               BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
 332               BIT(FLOW_DISSECTOR_KEY_VLAN) |
 333               BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
 334               BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
 335               BIT(FLOW_DISSECTOR_KEY_PORTS) |
 336               BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) |
 337               BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) |
 338               BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) |
 339               BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) |
 340               BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL))) {
 341                 netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",
 342                             f->dissector->used_keys);
 343                 return -EOPNOTSUPP;
 344         }
 345
 346         if ((dissector_uses_key(f->dissector,
 347                                 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) ||
 348              dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) ||
 349              dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) &&
 350             dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) {
 351                 struct flow_dissector_key_control *key =
 352                         skb_flow_dissector_target(f->dissector,
 353                                                   FLOW_DISSECTOR_KEY_ENC_CONTROL,
 354                                                   f->key);
 355                 switch (key->addr_type) {
 356                 case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
 357                         if (parse_tunnel_attr(priv, spec, f))
 358                                 return -EOPNOTSUPP;
 359                         break;
 360                 case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
 361                         netdev_warn(priv->netdev,
 362                                     "IPv6 tunnel decap offload isn't supported\n");
 363                 default:
 364                         return -EOPNOTSUPP;
 365                 }
 366
 367                 /* In decap flow, header pointers should point to the inner
 368                  * headers, outer header were already set by parse_tunnel_attr
 369                  */
 370                 headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
 371                                          inner_headers);
 372                 headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
 373                                          inner_headers);
 374         }
 375
 376         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
 377                 struct flow_dissector_key_control *key =
 378                         skb_flow_dissector_target(f->dissector,
 379                                                   FLOW_DISSECTOR_KEY_CONTROL,
 380                                                   f->key);
 381
 382                 struct flow_dissector_key_control *mask =
 383                         skb_flow_dissector_target(f->dissector,
 384                                                   FLOW_DISSECTOR_KEY_CONTROL,
 385                                                   f->mask);
 386                 addr_type = key->addr_type;
 387
 388                 if (mask->flags & FLOW_DIS_IS_FRAGMENT) {
 389                         MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1);
 390                         MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag,
 391                                  key->flags & FLOW_DIS_IS_FRAGMENT);
 392
 393                         /* the HW doesn't need L3 inline to match on frag=no */
 394                         if (key->flags & FLOW_DIS_IS_FRAGMENT)
 395                                 *min_inline = MLX5_INLINE_MODE_IP;
 396                 }
 397         }
 398
 399         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
 400                 struct flow_dissector_key_basic *key =
 401                         skb_flow_dissector_target(f->dissector,
 402                                                   FLOW_DISSECTOR_KEY_BASIC,
 403                                                   f->key);
 404                 struct flow_dissector_key_basic *mask =
 405                         skb_flow_dissector_target(f->dissector,
 406                                                   FLOW_DISSECTOR_KEY_BASIC,
 407                                                   f->mask);
 408                 ip_proto = key->ip_proto;
 409
 410                 MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype,
 411                          ntohs(mask->n_proto));
 412                 MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype,
 413                          ntohs(key->n_proto));
 414
 415                 MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol,
 416                          mask->ip_proto);
 417                 MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
 418                          key->ip_proto);
 419
 420                 if (mask->ip_proto)
 421                         *min_inline = MLX5_INLINE_MODE_IP;
 422         }
 423
 424         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
 425                 struct flow_dissector_key_eth_addrs *key =
 426                         skb_flow_dissector_target(f->dissector,
 427                                                   FLOW_DISSECTOR_KEY_ETH_ADDRS,
 428                                                   f->key);
 429                 struct flow_dissector_key_eth_addrs *mask =
 430                         skb_flow_dissector_target(f->dissector,
 431                                                   FLOW_DISSECTOR_KEY_ETH_ADDRS,
 432                                                   f->mask);
 433
 434                 ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
 435                                              dmac_47_16),
 436                                 mask->dst);
 437                 ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 438                                              dmac_47_16),
 439                                 key->dst);
 440
 441                 ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
 442                                              smac_47_16),
 443                                 mask->src);
 444                 ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 445                                              smac_47_16),
 446                                 key->src);
 447         }
 448
 449         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) {
 450                 struct flow_dissector_key_vlan *key =
 451                         skb_flow_dissector_target(f->dissector,
 452                                                   FLOW_DISSECTOR_KEY_VLAN,
 453                                                   f->key);
 454                 struct flow_dissector_key_vlan *mask =
 455                         skb_flow_dissector_target(f->dissector,
 456                                                   FLOW_DISSECTOR_KEY_VLAN,
 457                                                   f->mask);
 458                 if (mask->vlan_id || mask->vlan_priority) {
 459                         MLX5_SET(fte_match_set_lyr_2_4, headers_c, vlan_tag, 1);
 460                         MLX5_SET(fte_match_set_lyr_2_4, headers_v, vlan_tag, 1);
 461
 462                         MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id);
 463                         MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id);
 464
 465                         MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority);
 466                         MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority);
 467                 }
 468         }
 469
 470         if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
 471                 struct flow_dissector_key_ipv4_addrs *key =
 472                         skb_flow_dissector_target(f->dissector,
 473                                                   FLOW_DISSECTOR_KEY_IPV4_ADDRS,
 474                                                   f->key);
 475                 struct flow_dissector_key_ipv4_addrs *mask =
 476                         skb_flow_dissector_target(f->dissector,
 477                                                   FLOW_DISSECTOR_KEY_IPV4_ADDRS,
 478                                                   f->mask);
 479
 480                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
 481                                     src_ipv4_src_ipv6.ipv4_layout.ipv4),
 482                        &mask->src, sizeof(mask->src));
 483                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 484                                     src_ipv4_src_ipv6.ipv4_layout.ipv4),
 485                        &key->src, sizeof(key->src));
 486                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
 487                                     dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
 488                        &mask->dst, sizeof(mask->dst));
 489                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 490                                     dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
 491                        &key->dst, sizeof(key->dst));
 492
 493                 if (mask->src || mask->dst)
 494                         *min_inline = MLX5_INLINE_MODE_IP;
 495         }
 496
 497         if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
 498                 struct flow_dissector_key_ipv6_addrs *key =
 499                         skb_flow_dissector_target(f->dissector,
 500                                                   FLOW_DISSECTOR_KEY_IPV6_ADDRS,
 501                                                   f->key);
 502                 struct flow_dissector_key_ipv6_addrs *mask =
 503                         skb_flow_dissector_target(f->dissector,
 504                                                   FLOW_DISSECTOR_KEY_IPV6_ADDRS,
 505                                                   f->mask);
 506
 507                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
 508                                     src_ipv4_src_ipv6.ipv6_layout.ipv6),
 509                        &mask->src, sizeof(mask->src));
 510                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 511                                     src_ipv4_src_ipv6.ipv6_layout.ipv6),
 512                        &key->src, sizeof(key->src));
 513
 514                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
 515                                     dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
 516                        &mask->dst, sizeof(mask->dst));
 517                 memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
 518                                     dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
 519                        &key->dst, sizeof(key->dst));
 520
 521                 if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY ||
 522                     ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY)
 523                         *min_inline = MLX5_INLINE_MODE_IP;
 524         }
 525
 526         if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
 527                 struct flow_dissector_key_ports *key =
 528                         skb_flow_dissector_target(f->dissector,
 529                                                   FLOW_DISSECTOR_KEY_PORTS,
 530                                                   f->key);
 531                 struct flow_dissector_key_ports *mask =
 532                         skb_flow_dissector_target(f->dissector,
 533                                                   FLOW_DISSECTOR_KEY_PORTS,
 534                                                   f->mask);
 535                 switch (ip_proto) {
 536                 case IPPROTO_TCP:
 537                         MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 538                                  tcp_sport, ntohs(mask->src));
 539                         MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 540                                  tcp_sport, ntohs(key->src));
 541
 542                         MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 543                                  tcp_dport, ntohs(mask->dst));
 544                         MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 545                                  tcp_dport, ntohs(key->dst));
 546                         break;
 547
 548                 case IPPROTO_UDP:
 549                         MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 550                                  udp_sport, ntohs(mask->src));
 551                         MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 552                                  udp_sport, ntohs(key->src));
 553
 554                         MLX5_SET(fte_match_set_lyr_2_4, headers_c,
 555                                  udp_dport, ntohs(mask->dst));
 556                         MLX5_SET(fte_match_set_lyr_2_4, headers_v,
 557                                  udp_dport, ntohs(key->dst));
 558                         break;
 559                 default:
 560                         netdev_err(priv->netdev,
 561                                    "Only UDP and TCP transport are supported\n");
 562                         return -EINVAL;
 563                 }
 564
 565                 if (mask->src || mask->dst)
 566                         *min_inline = MLX5_INLINE_MODE_TCP_UDP;
 567         }
 568
 569         return 0;
 570 }
 571
 572 static int parse_cls_flower(struct mlx5e_priv *priv,
 573                             struct mlx5_flow_spec *spec,
 574                             struct tc_cls_flower_offload *f)
 575 {
 576         struct mlx5_core_dev *dev = priv->mdev;
 577         struct mlx5_eswitch *esw = dev->priv.eswitch;
 578         struct mlx5_eswitch_rep *rep = priv->ppriv;
 579         u8 min_inline;
 580         int err;
 581
 582         err = __parse_cls_flower(priv, spec, f, &min_inline);
 583
 584         if (!err && esw->mode == SRIOV_OFFLOADS &&
 585             rep->vport != FDB_UPLINK_VPORT) {
 586                 if (min_inline > esw->offloads.inline_mode) {
 587                         netdev_warn(priv->netdev,
 588                                     "Flow is not offloaded due to min inline setting, required %d actual %d\n",
 589                                     min_inline, esw->offloads.inline_mode);
 590                         return -EOPNOTSUPP;
 591                 }
 592         }
 593
 594         return err;
 595 }
 596
 597 static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 598                                 u32 *action, u32 *flow_tag)
 599 {
 600         const struct tc_action *a;
 601         LIST_HEAD(actions);
 602
 603         if (tc_no_actions(exts))
 604                 return -EINVAL;
 605
 606         *flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
 607         *action = 0;
 608
 609         tcf_exts_to_list(exts, &actions);
 610         list_for_each_entry(a, &actions, list) {
 611                 /* Only support a single action per rule */
 612                 if (*action)
 613                         return -EINVAL;
 614
 615                 if (is_tcf_gact_shot(a)) {
 616                         *action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
 617                         if (MLX5_CAP_FLOWTABLE(priv->mdev,
 618                                                flow_table_properties_nic_receive.flow_counter))
 619                                 *action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
 620                         continue;
 621                 }
 622
 623                 if (is_tcf_skbedit_mark(a)) {
 624                         u32 mark = tcf_skbedit_mark(a);
 625
 626                         if (mark & ~MLX5E_TC_FLOW_ID_MASK) {
 627                                 netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n",
 628                                             mark);
 629                                 return -EINVAL;
 630                         }
 631
 632                         *flow_tag = mark;
 633                         *action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
 634                         continue;
 635                 }
 636
 637                 return -EINVAL;
 638         }
 639
 640         return 0;
 641 }
 642
 643 static inline int cmp_encap_info(struct mlx5_encap_info *a,
 644                                  struct mlx5_encap_info *b)
 645 {
 646         return memcmp(a, b, sizeof(*a));
 647 }
 648
 649 static inline int hash_encap_info(struct mlx5_encap_info *info)
 650 {
 651         return jhash(info, sizeof(*info), 0);
 652 }
 653
 654 static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv,
 655                                    struct net_device *mirred_dev,
 656                                    struct net_device **out_dev,
 657                                    struct flowi4 *fl4,
 658                                    struct neighbour **out_n,
 659                                    __be32 *saddr,
 660                                    int *out_ttl)
 661 {
 662         struct rtable *rt;
 663         struct neighbour *n = NULL;
 664         int ttl;
 665
 666 #if IS_ENABLED(CONFIG_INET)
 667         rt = ip_route_output_key(dev_net(mirred_dev), fl4);
 668         if (IS_ERR(rt))
 669                 return PTR_ERR(rt);
 670 #else
 671         return -EOPNOTSUPP;
 672 #endif
 673
 674         if (!switchdev_port_same_parent_id(priv->netdev, rt->dst.dev)) {
 675                 pr_warn("%s: can't offload, devices not on same HW e-switch\n", __func__);
 676                 ip_rt_put(rt);
 677                 return -EOPNOTSUPP;
 678         }
 679
 680         ttl = ip4_dst_hoplimit(&rt->dst);
 681         n = dst_neigh_lookup(&rt->dst, &fl4->daddr);
 682         ip_rt_put(rt);
 683         if (!n)
 684                 return -ENOMEM;
 685
 686         *out_n = n;
 687         *saddr = fl4->saddr;
 688         *out_ttl = ttl;
 689         *out_dev = rt->dst.dev;
 690
 691         return 0;
 692 }
 693
 694 static int gen_vxlan_header_ipv4(struct net_device *out_dev,
 695                                  char buf[],
 696                                  unsigned char h_dest[ETH_ALEN],
 697                                  int ttl,
 698                                  __be32 daddr,
 699                                  __be32 saddr,
 700                                  __be16 udp_dst_port,
 701                                  __be32 vx_vni)
 702 {
 703         int encap_size = VXLAN_HLEN + sizeof(struct iphdr) + ETH_HLEN;
 704         struct ethhdr *eth = (struct ethhdr *)buf;
 705         struct iphdr  *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr));
 706         struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr));
 707         struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr));
 708
 709         memset(buf, 0, encap_size);
 710
 711         ether_addr_copy(eth->h_dest, h_dest);
 712         ether_addr_copy(eth->h_source, out_dev->dev_addr);
 713         eth->h_proto = htons(ETH_P_IP);
 714
 715         ip->daddr = daddr;
 716         ip->saddr = saddr;
 717
 718         ip->ttl = ttl;
 719         ip->protocol = IPPROTO_UDP;
 720         ip->version = 0x4;
 721         ip->ihl = 0x5;
 722
 723         udp->dest = udp_dst_port;
 724         vxh->vx_flags = VXLAN_HF_VNI;
 725         vxh->vx_vni = vxlan_vni_field(vx_vni);
 726
 727         return encap_size;
 728 }
 729
 730 static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv,
 731                                           struct net_device *mirred_dev,
 732                                           struct mlx5_encap_entry *e,
 733                                           struct net_device **out_dev)
 734 {
 735         int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size);
 736         struct neighbour *n = NULL;
 737         struct flowi4 fl4 = {};
 738         char *encap_header;
 739         int encap_size;
 740         __be32 saddr = 0;
 741         int ttl = 0;
 742         int err;
 743
 744         encap_header = kzalloc(max_encap_size, GFP_KERNEL);
 745         if (!encap_header)
 746                 return -ENOMEM;
 747
 748         switch (e->tunnel_type) {
 749         case MLX5_HEADER_TYPE_VXLAN:
 750                 fl4.flowi4_proto = IPPROTO_UDP;
 751                 fl4.fl4_dport = e->tun_info.tp_dst;
 752                 break;
 753         default:
 754                 err = -EOPNOTSUPP;
 755                 goto out;
 756         }
 757         fl4.daddr = e->tun_info.daddr;
 758
 759         err = mlx5e_route_lookup_ipv4(priv, mirred_dev, out_dev,
 760                                       &fl4, &n, &saddr, &ttl);
 761         if (err)
 762                 goto out;
 763
 764         e->n = n;
 765         e->out_dev = *out_dev;
 766
 767         if (!(n->nud_state & NUD_VALID)) {
 768                 pr_warn("%s: can't offload, neighbour to %pI4 invalid\n", __func__, &fl4.daddr);
 769                 err = -EOPNOTSUPP;
 770                 goto out;
 771         }
 772
 773         neigh_ha_snapshot(e->h_dest, n, *out_dev);
 774
 775         switch (e->tunnel_type) {
 776         case MLX5_HEADER_TYPE_VXLAN:
 777                 encap_size = gen_vxlan_header_ipv4(*out_dev, encap_header,
 778                                                    e->h_dest, ttl,
 779                                                    e->tun_info.daddr,
 780                                                    saddr, e->tun_info.tp_dst,
 781                                                    e->tun_info.tun_id);
 782                 break;
 783         default:
 784                 err = -EOPNOTSUPP;
 785                 goto out;
 786         }
 787
 788         err = mlx5_encap_alloc(priv->mdev, e->tunnel_type,
 789                                encap_size, encap_header, &e->encap_id);
 790 out:
 791         if (err && n)
 792                 neigh_release(n);
 793         kfree(encap_header);
 794         return err;
 795 }
 796
 797 static int mlx5e_attach_encap(struct mlx5e_priv *priv,
 798                               struct ip_tunnel_info *tun_info,
 799                               struct net_device *mirred_dev,
 800                               struct mlx5_esw_flow_attr *attr)
 801 {
 802         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 803         unsigned short family = ip_tunnel_info_af(tun_info);
 804         struct ip_tunnel_key *key = &tun_info->key;
 805         struct mlx5_encap_info info;
 806         struct mlx5_encap_entry *e;
 807         struct net_device *out_dev;
 808         uintptr_t hash_key;
 809         bool found = false;
 810         int tunnel_type;
 811         int err;
 812
 813         /* udp dst port must be set */
 814         if (!memchr_inv(&key->tp_dst, 0, sizeof(key->tp_dst)))
 815                 goto vxlan_encap_offload_err;
 816
 817         /* setting udp src port isn't supported */
 818         if (memchr_inv(&key->tp_src, 0, sizeof(key->tp_src))) {
 819 vxlan_encap_offload_err:
 820                 netdev_warn(priv->netdev,
 821                             "must set udp dst port and not set udp src port\n");
 822                 return -EOPNOTSUPP;
 823         }
 824
 825         if (mlx5e_vxlan_lookup_port(priv, be16_to_cpu(key->tp_dst)) &&
 826             MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) {
 827                 info.tp_dst = key->tp_dst;
 828                 info.tun_id = tunnel_id_to_key32(key->tun_id);
 829                 tunnel_type = MLX5_HEADER_TYPE_VXLAN;
 830         } else {
 831                 netdev_warn(priv->netdev,
 832                             "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->tp_dst));
 833                 return -EOPNOTSUPP;
 834         }
 835
 836         switch (family) {
 837         case AF_INET:
 838                 info.daddr = key->u.ipv4.dst;
 839                 break;
 840         case AF_INET6:
 841                 netdev_warn(priv->netdev,
 842                             "IPv6 tunnel encap offload isn't supported\n");
 843         default:
 844                 return -EOPNOTSUPP;
 845         }
 846
 847         hash_key = hash_encap_info(&info);
 848
 849         hash_for_each_possible_rcu(esw->offloads.encap_tbl, e,
 850                                    encap_hlist, hash_key) {
 851                 if (!cmp_encap_info(&e->tun_info, &info)) {
 852                         found = true;
 853                         break;
 854                 }
 855         }
 856
 857         if (found) {
 858                 attr->encap = e;
 859                 return 0;
 860         }
 861
 862         e = kzalloc(sizeof(*e), GFP_KERNEL);
 863         if (!e)
 864                 return -ENOMEM;
 865
 866         e->tun_info = info;
 867         e->tunnel_type = tunnel_type;
 868         INIT_LIST_HEAD(&e->flows);
 869
 870         err = mlx5e_create_encap_header_ipv4(priv, mirred_dev, e, &out_dev);
 871         if (err)
 872                 goto out_err;
 873
 874         attr->encap = e;
 875         hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key);
 876
 877         return err;
 878
 879 out_err:
 880         kfree(e);
 881         return err;
 882 }
 883
 884 static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 885                                 struct mlx5e_tc_flow *flow)
 886 {
 887         struct mlx5_esw_flow_attr *attr = flow->attr;
 888         struct ip_tunnel_info *info = NULL;
 889         const struct tc_action *a;
 890         LIST_HEAD(actions);
 891         bool encap = false;
 892         int err;
 893
 894         if (tc_no_actions(exts))
 895                 return -EINVAL;
 896
 897         memset(attr, 0, sizeof(*attr));
 898         attr->in_rep = priv->ppriv;
 899
 900         tcf_exts_to_list(exts, &actions);
 901         list_for_each_entry(a, &actions, list) {
 902                 if (is_tcf_gact_shot(a)) {
 903                         attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP |
 904                                         MLX5_FLOW_CONTEXT_ACTION_COUNT;
 905                         continue;
 906                 }
 907
 908                 if (is_tcf_mirred_egress_redirect(a)) {
 909                         int ifindex = tcf_mirred_ifindex(a);
 910                         struct net_device *out_dev;
 911                         struct mlx5e_priv *out_priv;
 912
 913                         out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex);
 914
 915                         if (switchdev_port_same_parent_id(priv->netdev,
 916                                                           out_dev)) {
 917                                 attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
 918                                         MLX5_FLOW_CONTEXT_ACTION_COUNT;
 919                                 out_priv = netdev_priv(out_dev);
 920                                 attr->out_rep = out_priv->ppriv;
 921                         } else if (encap) {
 922                                 err = mlx5e_attach_encap(priv, info,
 923                                                          out_dev, attr);
 924                                 if (err)
 925                                         return err;
 926                                 list_add(&flow->encap, &attr->encap->flows);
 927                                 attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP |
 928                                         MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
 929                                         MLX5_FLOW_CONTEXT_ACTION_COUNT;
 930                                 out_priv = netdev_priv(attr->encap->out_dev);
 931                                 attr->out_rep = out_priv->ppriv;
 932                         } else {
 933                                 pr_err("devices %s %s not on same switch HW, can't offload forwarding\n",
 934                                        priv->netdev->name, out_dev->name);
 935                                 return -EINVAL;
 936                         }
 937                         continue;
 938                 }
 939
 940                 if (is_tcf_tunnel_set(a)) {
 941                         info = tcf_tunnel_info(a);
 942                         if (info)
 943                                 encap = true;
 944                         else
 945                                 return -EOPNOTSUPP;
 946                         continue;
 947                 }
 948
 949                 if (is_tcf_vlan(a)) {
 950                         if (tcf_vlan_action(a) == VLAN_F_POP) {
 951                                 attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
 952                         } else if (tcf_vlan_action(a) == VLAN_F_PUSH) {
 953                                 if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q))
 954                                         return -EOPNOTSUPP;
 955
 956                                 attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
 957                                 attr->vlan = tcf_vlan_push_vid(a);
 958                         }
 959                         continue;
 960                 }
 961
 962                 if (is_tcf_tunnel_release(a)) {
 963                         attr->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP;
 964                         continue;
 965                 }
 966
 967                 return -EINVAL;
 968         }
 969         return 0;
 970 }
 971
 972 int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol,
 973                            struct tc_cls_flower_offload *f)
 974 {
 975         struct mlx5e_tc_table *tc = &priv->fs.tc;
 976         int err = 0;
 977         bool fdb_flow = false;
 978         u32 flow_tag, action;
 979         struct mlx5e_tc_flow *flow;
 980         struct mlx5_flow_spec *spec;
 981         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 982
 983         if (esw && esw->mode == SRIOV_OFFLOADS)
 984                 fdb_flow = true;
 985
 986         if (fdb_flow)
 987                 flow = kzalloc(sizeof(*flow) +
 988                                sizeof(struct mlx5_esw_flow_attr),
 989                                GFP_KERNEL);
 990         else
 991                 flow = kzalloc(sizeof(*flow), GFP_KERNEL);
 992
 993         spec = mlx5_vzalloc(sizeof(*spec));
 994         if (!spec || !flow) {
 995                 err = -ENOMEM;
 996                 goto err_free;
 997         }
 998
 999         flow->cookie = f->cookie;
1000
1001         err = parse_cls_flower(priv, spec, f);
1002         if (err < 0)
1003                 goto err_free;
1004
1005         if (fdb_flow) {
1006                 flow->attr  = (struct mlx5_esw_flow_attr *)(flow + 1);
1007                 err = parse_tc_fdb_actions(priv, f->exts, flow);
1008                 if (err < 0)
1009                         goto err_free;
1010                 flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr);
1011         } else {
1012                 err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag);
1013                 if (err < 0)
1014                         goto err_free;
1015                 flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag);
1016         }
1017
1018         if (IS_ERR(flow->rule)) {
1019                 err = PTR_ERR(flow->rule);
1020                 goto err_free;
1021         }
1022
1023         err = rhashtable_insert_fast(&tc->ht, &flow->node,
1024                                      tc->ht_params);
1025         if (err)
1026                 goto err_del_rule;
1027
1028         goto out;
1029
1030 err_del_rule:
1031         mlx5_del_flow_rules(flow->rule);
1032
1033 err_free:
1034         kfree(flow);
1035 out:
1036         kvfree(spec);
1037         return err;
1038 }
1039
1040 int mlx5e_delete_flower(struct mlx5e_priv *priv,
1041                         struct tc_cls_flower_offload *f)
1042 {
1043         struct mlx5e_tc_flow *flow;
1044         struct mlx5e_tc_table *tc = &priv->fs.tc;
1045
1046         flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
1047                                       tc->ht_params);
1048         if (!flow)
1049                 return -EINVAL;
1050
1051         rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params);
1052
1053         mlx5e_tc_del_flow(priv, flow);
1054
1055
1056         kfree(flow);
1057
1058         return 0;
1059 }
1060
1061 int mlx5e_stats_flower(struct mlx5e_priv *priv,
1062                        struct tc_cls_flower_offload *f)
1063 {
1064         struct mlx5e_tc_table *tc = &priv->fs.tc;
1065         struct mlx5e_tc_flow *flow;
1066         struct tc_action *a;
1067         struct mlx5_fc *counter;
1068         LIST_HEAD(actions);
1069         u64 bytes;
1070         u64 packets;
1071         u64 lastuse;
1072
1073         flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
1074                                       tc->ht_params);
1075         if (!flow)
1076                 return -EINVAL;
1077
1078         counter = mlx5_flow_rule_counter(flow->rule);
1079         if (!counter)
1080                 return 0;
1081
1082         mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse);
1083
1084         tcf_exts_to_list(f->exts, &actions);
1085         list_for_each_entry(a, &actions, list)
1086                 tcf_action_stats_update(a, bytes, packets, lastuse);
1087
1088         return 0;
1089 }
1090
1091 static const struct rhashtable_params mlx5e_tc_flow_ht_params = {
1092         .head_offset = offsetof(struct mlx5e_tc_flow, node),
1093         .key_offset = offsetof(struct mlx5e_tc_flow, cookie),
1094         .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie),
1095         .automatic_shrinking = true,
1096 };
1097
1098 int mlx5e_tc_init(struct mlx5e_priv *priv)
1099 {
1100         struct mlx5e_tc_table *tc = &priv->fs.tc;
1101
1102         tc->ht_params = mlx5e_tc_flow_ht_params;
1103         return rhashtable_init(&tc->ht, &tc->ht_params);
1104 }
1105
1106 static void _mlx5e_tc_del_flow(void *ptr, void *arg)
1107 {
1108         struct mlx5e_tc_flow *flow = ptr;
1109         struct mlx5e_priv *priv = arg;
1110
1111         mlx5e_tc_del_flow(priv, flow);
1112         kfree(flow);
1113 }
1114
1115 void mlx5e_tc_cleanup(struct mlx5e_priv *priv)
1116 {
1117         struct mlx5e_tc_table *tc = &priv->fs.tc;
1118
1119         rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv);
1120
1121         if (!IS_ERR_OR_NULL(tc->t)) {
1122                 mlx5_destroy_flow_table(tc->t);
1123                 tc->t = NULL;
1124         }
1125 }