drivers/net/enic/enic_clsf.c

   1 /*
   2  * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * Copyright (c) 2014, Cisco Systems, Inc.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  * notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  * notice, this list of conditions and the following disclaimer in
  17  * the documentation and/or other materials provided with the
  18  * distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  */
  34
  35 #include <libgen.h>
  36
  37 #include <rte_ethdev.h>
  38 #include <rte_malloc.h>
  39 #include <rte_hash.h>
  40 #include <rte_byteorder.h>
  41 #include <rte_ip.h>
  42 #include <rte_tcp.h>
  43 #include <rte_udp.h>
  44 #include <rte_sctp.h>
  45 #include <rte_eth_ctrl.h>
  46
  47 #include "enic_compat.h"
  48 #include "enic.h"
  49 #include "wq_enet_desc.h"
  50 #include "rq_enet_desc.h"
  51 #include "cq_enet_desc.h"
  52 #include "vnic_enet.h"
  53 #include "vnic_dev.h"
  54 #include "vnic_wq.h"
  55 #include "vnic_rq.h"
  56 #include "vnic_cq.h"
  57 #include "vnic_intr.h"
  58 #include "vnic_nic.h"
  59
  60 #ifdef RTE_MACHINE_CPUFLAG_SSE4_2
  61 #include <rte_hash_crc.h>
  62 #define DEFAULT_HASH_FUNC       rte_hash_crc
  63 #else
  64 #include <rte_jhash.h>
  65 #define DEFAULT_HASH_FUNC       rte_jhash
  66 #endif
  67
  68 #define ENICPMD_CLSF_HASH_ENTRIES       ENICPMD_FDIR_MAX
  69
  70 void enic_fdir_stats_get(struct enic *enic, struct rte_eth_fdir_stats *stats)
  71 {
  72         *stats = enic->fdir.stats;
  73 }
  74
  75 void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *info)
  76 {
  77         info->mode = (enum rte_fdir_mode)enic->fdir.modes;
  78         info->flow_types_mask[0] = enic->fdir.types_mask;
  79 }
  80
  81 void enic_fdir_info(struct enic *enic)
  82 {
  83         enic->fdir.modes = (u32)RTE_FDIR_MODE_PERFECT;
  84         enic->fdir.types_mask  = 1 << RTE_ETH_FLOW_NONFRAG_IPV4_UDP |
  85                                  1 << RTE_ETH_FLOW_NONFRAG_IPV4_TCP;
  86         if (enic->adv_filters) {
  87                 enic->fdir.types_mask |= 1 << RTE_ETH_FLOW_NONFRAG_IPV4_OTHER |
  88                                          1 << RTE_ETH_FLOW_NONFRAG_IPV4_SCTP |
  89                                          1 << RTE_ETH_FLOW_NONFRAG_IPV6_UDP |
  90                                          1 << RTE_ETH_FLOW_NONFRAG_IPV6_TCP |
  91                                          1 << RTE_ETH_FLOW_NONFRAG_IPV6_SCTP |
  92                                          1 << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER;
  93                 enic->fdir.copy_fltr_fn = copy_fltr_v2;
  94         } else {
  95                 enic->fdir.copy_fltr_fn = copy_fltr_v1;
  96         }
  97 }
  98
  99 static void
 100 enic_set_layer(struct filter_generic_1 *gp, unsigned int flag,
 101                enum filter_generic_1_layer layer, void *mask, void *val,
 102                unsigned int len)
 103 {
 104         gp->mask_flags |= flag;
 105         gp->val_flags |= gp->mask_flags;
 106         memcpy(gp->layer[layer].mask, mask, len);
 107         memcpy(gp->layer[layer].val, val, len);
 108 }
 109
 110 /* Copy Flow Director filter to a VIC ipv4 filter (for Cisco VICs
 111  * without advanced filter support.
 112  */
 113 void
 114 copy_fltr_v1(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
 115              __rte_unused struct rte_eth_fdir_masks *masks)
 116 {
 117         fltr->type = FILTER_IPV4_5TUPLE;
 118         fltr->u.ipv4.src_addr = rte_be_to_cpu_32(
 119                 input->flow.ip4_flow.src_ip);
 120         fltr->u.ipv4.dst_addr = rte_be_to_cpu_32(
 121                 input->flow.ip4_flow.dst_ip);
 122         fltr->u.ipv4.src_port = rte_be_to_cpu_16(
 123                 input->flow.udp4_flow.src_port);
 124         fltr->u.ipv4.dst_port = rte_be_to_cpu_16(
 125                 input->flow.udp4_flow.dst_port);
 126
 127         if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_TCP)
 128                 fltr->u.ipv4.protocol = PROTO_TCP;
 129         else
 130                 fltr->u.ipv4.protocol = PROTO_UDP;
 131
 132         fltr->u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
 133 }
 134
 135 /* Copy Flow Director filter to a VIC generic filter (requires advanced
 136  * filter support.
 137  */
 138 void
 139 copy_fltr_v2(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
 140              struct rte_eth_fdir_masks *masks)
 141 {
 142         struct filter_generic_1 *gp = &fltr->u.generic_1;
 143         int i;
 144
 145         fltr->type = FILTER_DPDK_1;
 146         memset(gp, 0, sizeof(*gp));
 147
 148         if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_UDP) {
 149                 struct udp_hdr udp_mask, udp_val;
 150                 memset(&udp_mask, 0, sizeof(udp_mask));
 151                 memset(&udp_val, 0, sizeof(udp_val));
 152
 153                 if (input->flow.udp4_flow.src_port) {
 154                         udp_mask.src_port = masks->src_port_mask;
 155                         udp_val.src_port = input->flow.udp4_flow.src_port;
 156                 }
 157                 if (input->flow.udp4_flow.dst_port) {
 158                         udp_mask.dst_port = masks->dst_port_mask;
 159                         udp_val.dst_port = input->flow.udp4_flow.dst_port;
 160                 }
 161
 162                 enic_set_layer(gp, FILTER_GENERIC_1_UDP, FILTER_GENERIC_1_L4,
 163                                &udp_mask, &udp_val, sizeof(struct udp_hdr));
 164         } else if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_TCP) {
 165                 struct tcp_hdr tcp_mask, tcp_val;
 166                 memset(&tcp_mask, 0, sizeof(tcp_mask));
 167                 memset(&tcp_val, 0, sizeof(tcp_val));
 168
 169                 if (input->flow.tcp4_flow.src_port) {
 170                         tcp_mask.src_port = masks->src_port_mask;
 171                         tcp_val.src_port = input->flow.tcp4_flow.src_port;
 172                 }
 173                 if (input->flow.tcp4_flow.dst_port) {
 174                         tcp_mask.dst_port = masks->dst_port_mask;
 175                         tcp_val.dst_port = input->flow.tcp4_flow.dst_port;
 176                 }
 177
 178                 enic_set_layer(gp, FILTER_GENERIC_1_TCP, FILTER_GENERIC_1_L4,
 179                                &tcp_mask, &tcp_val, sizeof(struct tcp_hdr));
 180         } else if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_SCTP) {
 181                 struct sctp_hdr sctp_mask, sctp_val;
 182                 memset(&sctp_mask, 0, sizeof(sctp_mask));
 183                 memset(&sctp_val, 0, sizeof(sctp_val));
 184
 185                 if (input->flow.sctp4_flow.src_port) {
 186                         sctp_mask.src_port = masks->src_port_mask;
 187                         sctp_val.src_port = input->flow.sctp4_flow.src_port;
 188                 }
 189                 if (input->flow.sctp4_flow.dst_port) {
 190                         sctp_mask.dst_port = masks->dst_port_mask;
 191                         sctp_val.dst_port = input->flow.sctp4_flow.dst_port;
 192                 }
 193                 if (input->flow.sctp4_flow.verify_tag) {
 194                         sctp_mask.tag = 0xffffffff;
 195                         sctp_val.tag = input->flow.sctp4_flow.verify_tag;
 196                 }
 197
 198                 /* v4 proto should be 132, override ip4_flow.proto */
 199                 input->flow.ip4_flow.proto = 132;
 200
 201                 enic_set_layer(gp, 0, FILTER_GENERIC_1_L4, &sctp_mask,
 202                                &sctp_val, sizeof(struct sctp_hdr));
 203         }
 204
 205         if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_UDP ||
 206             input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_TCP ||
 207             input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_SCTP ||
 208             input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV4_OTHER) {
 209                 struct ipv4_hdr ip4_mask, ip4_val;
 210                 memset(&ip4_mask, 0, sizeof(struct ipv4_hdr));
 211                 memset(&ip4_val, 0, sizeof(struct ipv4_hdr));
 212
 213                 if (input->flow.ip4_flow.tos) {
 214                         ip4_mask.type_of_service = 0xff;
 215                         ip4_val.type_of_service = input->flow.ip4_flow.tos;
 216                 }
 217                 if (input->flow.ip4_flow.ttl) {
 218                         ip4_mask.time_to_live = 0xff;
 219                         ip4_val.time_to_live = input->flow.ip4_flow.ttl;
 220                 }
 221                 if (input->flow.ip4_flow.proto) {
 222                         ip4_mask.next_proto_id = 0xff;
 223                         ip4_val.next_proto_id = input->flow.ip4_flow.proto;
 224                 }
 225                 if (input->flow.ip4_flow.src_ip) {
 226                         ip4_mask.src_addr =  masks->ipv4_mask.src_ip;
 227                         ip4_val.src_addr = input->flow.ip4_flow.src_ip;
 228                 }
 229                 if (input->flow.ip4_flow.dst_ip) {
 230                         ip4_mask.dst_addr =  masks->ipv4_mask.dst_ip;
 231                         ip4_val.dst_addr = input->flow.ip4_flow.dst_ip;
 232                 }
 233
 234                 enic_set_layer(gp, FILTER_GENERIC_1_IPV4, FILTER_GENERIC_1_L3,
 235                                &ip4_mask, &ip4_val, sizeof(struct ipv4_hdr));
 236         }
 237
 238         if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_UDP) {
 239                 struct udp_hdr udp_mask, udp_val;
 240                 memset(&udp_mask, 0, sizeof(udp_mask));
 241                 memset(&udp_val, 0, sizeof(udp_val));
 242
 243                 if (input->flow.udp6_flow.src_port) {
 244                         udp_mask.src_port = masks->src_port_mask;
 245                         udp_val.src_port = input->flow.udp6_flow.src_port;
 246                 }
 247                 if (input->flow.udp6_flow.dst_port) {
 248                         udp_mask.dst_port = masks->dst_port_mask;
 249                         udp_val.dst_port = input->flow.udp6_flow.dst_port;
 250                 }
 251                 enic_set_layer(gp, FILTER_GENERIC_1_UDP, FILTER_GENERIC_1_L4,
 252                                &udp_mask, &udp_val, sizeof(struct udp_hdr));
 253         } else if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_TCP) {
 254                 struct tcp_hdr tcp_mask, tcp_val;
 255                 memset(&tcp_mask, 0, sizeof(tcp_mask));
 256                 memset(&tcp_val, 0, sizeof(tcp_val));
 257
 258                 if (input->flow.tcp6_flow.src_port) {
 259                         tcp_mask.src_port = masks->src_port_mask;
 260                         tcp_val.src_port = input->flow.tcp6_flow.src_port;
 261                 }
 262                 if (input->flow.tcp6_flow.dst_port) {
 263                         tcp_mask.dst_port = masks->dst_port_mask;
 264                         tcp_val.dst_port = input->flow.tcp6_flow.dst_port;
 265                 }
 266                 enic_set_layer(gp, FILTER_GENERIC_1_TCP, FILTER_GENERIC_1_L4,
 267                                &tcp_mask, &tcp_val, sizeof(struct tcp_hdr));
 268         } else if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_SCTP) {
 269                 struct sctp_hdr sctp_mask, sctp_val;
 270                 memset(&sctp_mask, 0, sizeof(sctp_mask));
 271                 memset(&sctp_val, 0, sizeof(sctp_val));
 272
 273                 if (input->flow.sctp6_flow.src_port) {
 274                         sctp_mask.src_port = masks->src_port_mask;
 275                         sctp_val.src_port = input->flow.sctp6_flow.src_port;
 276                 }
 277                 if (input->flow.sctp6_flow.dst_port) {
 278                         sctp_mask.dst_port = masks->dst_port_mask;
 279                         sctp_val.dst_port = input->flow.sctp6_flow.dst_port;
 280                 }
 281                 if (input->flow.sctp6_flow.verify_tag) {
 282                         sctp_mask.tag = 0xffffffff;
 283                         sctp_val.tag = input->flow.sctp6_flow.verify_tag;
 284                 }
 285
 286                 /* v4 proto should be 132, override ipv6_flow.proto */
 287                 input->flow.ipv6_flow.proto = 132;
 288
 289                 enic_set_layer(gp, 0, FILTER_GENERIC_1_L4, &sctp_mask,
 290                                &sctp_val, sizeof(struct sctp_hdr));
 291         }
 292
 293         if (input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_UDP ||
 294             input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_TCP ||
 295             input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_SCTP ||
 296             input->flow_type == RTE_ETH_FLOW_NONFRAG_IPV6_OTHER) {
 297                 struct ipv6_hdr ipv6_mask, ipv6_val;
 298                 memset(&ipv6_mask, 0, sizeof(struct ipv6_hdr));
 299                 memset(&ipv6_val, 0, sizeof(struct ipv6_hdr));
 300
 301                 if (input->flow.ipv6_flow.proto) {
 302                         ipv6_mask.proto = 0xff;
 303                         ipv6_val.proto = input->flow.ipv6_flow.proto;
 304                 }
 305                 for (i = 0; i < 4; i++) {
 306                         *(uint32_t *)&ipv6_mask.src_addr[i * 4] =
 307                                         masks->ipv6_mask.src_ip[i];
 308                         *(uint32_t *)&ipv6_val.src_addr[i * 4] =
 309                                         input->flow.ipv6_flow.src_ip[i];
 310                 }
 311                 for (i = 0; i < 4; i++) {
 312                         *(uint32_t *)&ipv6_mask.dst_addr[i * 4] =
 313                                         masks->ipv6_mask.src_ip[i];
 314                         *(uint32_t *)&ipv6_val.dst_addr[i * 4] =
 315                                         input->flow.ipv6_flow.dst_ip[i];
 316                 }
 317                 if (input->flow.ipv6_flow.tc) {
 318                         ipv6_mask.vtc_flow = 0x00ff0000;
 319                         ipv6_val.vtc_flow = input->flow.ipv6_flow.tc << 16;
 320                 }
 321                 if (input->flow.ipv6_flow.hop_limits) {
 322                         ipv6_mask.hop_limits = 0xff;
 323                         ipv6_val.hop_limits = input->flow.ipv6_flow.hop_limits;
 324                 }
 325
 326                 enic_set_layer(gp, FILTER_GENERIC_1_IPV6, FILTER_GENERIC_1_L3,
 327                                &ipv6_mask, &ipv6_val, sizeof(struct ipv6_hdr));
 328         }
 329 }
 330
 331 int enic_fdir_del_fltr(struct enic *enic, struct rte_eth_fdir_filter *params)
 332 {
 333         int32_t pos;
 334         struct enic_fdir_node *key;
 335         /* See if the key is in the table */
 336         pos = rte_hash_del_key(enic->fdir.hash, params);
 337         switch (pos) {
 338         case -EINVAL:
 339         case -ENOENT:
 340                 enic->fdir.stats.f_remove++;
 341                 return -EINVAL;
 342         default:
 343                 /* The entry is present in the table */
 344                 key = enic->fdir.nodes[pos];
 345
 346                 /* Delete the filter */
 347                 vnic_dev_classifier(enic->vdev, CLSF_DEL,
 348                         &key->fltr_id, NULL);
 349                 rte_free(key);
 350                 enic->fdir.nodes[pos] = NULL;
 351                 enic->fdir.stats.free++;
 352                 enic->fdir.stats.remove++;
 353                 break;
 354         }
 355         return 0;
 356 }
 357
 358 int enic_fdir_add_fltr(struct enic *enic, struct rte_eth_fdir_filter *params)
 359 {
 360         struct enic_fdir_node *key;
 361         struct filter_v2 fltr;
 362         int32_t pos;
 363         u8 do_free = 0;
 364         u16 old_fltr_id = 0;
 365         u32 flowtype_supported;
 366         u16 flex_bytes;
 367         u16 queue;
 368
 369         memset(&fltr, 0, sizeof(fltr));
 370         flowtype_supported = enic->fdir.types_mask
 371                              & (1 << params->input.flow_type);
 372
 373         flex_bytes = ((params->input.flow_ext.flexbytes[1] << 8 & 0xFF00) |
 374                 (params->input.flow_ext.flexbytes[0] & 0xFF));
 375
 376         if (!enic->fdir.hash ||
 377                 (params->input.flow_ext.vlan_tci & 0xFFF) ||
 378                 !flowtype_supported || flex_bytes ||
 379                 params->action.behavior /* drop */) {
 380                 enic->fdir.stats.f_add++;
 381                 return -ENOTSUP;
 382         }
 383
 384         /* Get the enicpmd RQ from the DPDK Rx queue */
 385         queue = enic_rte_rq_idx_to_sop_idx(params->action.rx_queue);
 386
 387         if (!enic->rq[queue].in_use)
 388                 return -EINVAL;
 389
 390         /* See if the key is already there in the table */
 391         pos = rte_hash_del_key(enic->fdir.hash, params);
 392         switch (pos) {
 393         case -EINVAL:
 394                 enic->fdir.stats.f_add++;
 395                 return -EINVAL;
 396         case -ENOENT:
 397                 /* Add a new classifier entry */
 398                 if (!enic->fdir.stats.free) {
 399                         enic->fdir.stats.f_add++;
 400                         return -ENOSPC;
 401                 }
 402                 key = rte_zmalloc("enic_fdir_node",
 403                                   sizeof(struct enic_fdir_node), 0);
 404                 if (!key) {
 405                         enic->fdir.stats.f_add++;
 406                         return -ENOMEM;
 407                 }
 408                 break;
 409         default:
 410                 /* The entry is already present in the table.
 411                  * Check if there is a change in queue
 412                  */
 413                 key = enic->fdir.nodes[pos];
 414                 enic->fdir.nodes[pos] = NULL;
 415                 if (unlikely(key->rq_index == queue)) {
 416                         /* Nothing to be done */
 417                         enic->fdir.stats.f_add++;
 418                         pos = rte_hash_add_key(enic->fdir.hash, params);
 419                         if (pos < 0) {
 420                                 dev_err(enic, "Add hash key failed\n");
 421                                 return pos;
 422                         }
 423                         enic->fdir.nodes[pos] = key;
 424                         dev_warning(enic,
 425                                 "FDIR rule is already present\n");
 426                         return 0;
 427                 }
 428
 429                 if (likely(enic->fdir.stats.free)) {
 430                         /* Add the filter and then delete the old one.
 431                          * This is to avoid packets from going into the
 432                          * default queue during the window between
 433                          * delete and add
 434                          */
 435                         do_free = 1;
 436                         old_fltr_id = key->fltr_id;
 437                 } else {
 438                         /* No free slots in the classifier.
 439                          * Delete the filter and add the modified one later
 440                          */
 441                         vnic_dev_classifier(enic->vdev, CLSF_DEL,
 442                                 &key->fltr_id, NULL);
 443                         enic->fdir.stats.free++;
 444                 }
 445
 446                 break;
 447         }
 448
 449         key->filter = *params;
 450         key->rq_index = queue;
 451
 452         enic->fdir.copy_fltr_fn(&fltr, &params->input,
 453                                 &enic->rte_dev->data->dev_conf.fdir_conf.mask);
 454
 455         if (!vnic_dev_classifier(enic->vdev, CLSF_ADD, &queue, &fltr)) {
 456                 key->fltr_id = queue;
 457         } else {
 458                 dev_err(enic, "Add classifier entry failed\n");
 459                 enic->fdir.stats.f_add++;
 460                 rte_free(key);
 461                 return -1;
 462         }
 463
 464         if (do_free)
 465                 vnic_dev_classifier(enic->vdev, CLSF_DEL, &old_fltr_id, NULL);
 466         else{
 467                 enic->fdir.stats.free--;
 468                 enic->fdir.stats.add++;
 469         }
 470
 471         pos = rte_hash_add_key(enic->fdir.hash, params);
 472         if (pos < 0) {
 473                 enic->fdir.stats.f_add++;
 474                 dev_err(enic, "Add hash key failed\n");
 475                 return pos;
 476         }
 477
 478         enic->fdir.nodes[pos] = key;
 479         return 0;
 480 }
 481
 482 void enic_clsf_destroy(struct enic *enic)
 483 {
 484         u32 index;
 485         struct enic_fdir_node *key;
 486         /* delete classifier entries */
 487         for (index = 0; index < ENICPMD_FDIR_MAX; index++) {
 488                 key = enic->fdir.nodes[index];
 489                 if (key) {
 490                         vnic_dev_classifier(enic->vdev, CLSF_DEL,
 491                                 &key->fltr_id, NULL);
 492                         rte_free(key);
 493                         enic->fdir.nodes[index] = NULL;
 494                 }
 495         }
 496
 497         if (enic->fdir.hash) {
 498                 rte_hash_free(enic->fdir.hash);
 499                 enic->fdir.hash = NULL;
 500         }
 501 }
 502
 503 int enic_clsf_init(struct enic *enic)
 504 {
 505         char clsf_name[RTE_HASH_NAMESIZE];
 506         struct rte_hash_parameters hash_params = {
 507                 .name = clsf_name,
 508                 .entries = ENICPMD_CLSF_HASH_ENTRIES,
 509                 .key_len = sizeof(struct rte_eth_fdir_filter),
 510                 .hash_func = DEFAULT_HASH_FUNC,
 511                 .hash_func_init_val = 0,
 512                 .socket_id = SOCKET_ID_ANY,
 513         };
 514         snprintf(clsf_name, RTE_HASH_NAMESIZE, "enic_clsf_%s", enic->bdf_name);
 515         enic->fdir.hash = rte_hash_create(&hash_params);
 516         memset(&enic->fdir.stats, 0, sizeof(enic->fdir.stats));
 517         enic->fdir.stats.free = ENICPMD_FDIR_MAX;
 518         return NULL == enic->fdir.hash;
 519 }