drivers/net/i40e/i40e_fdir.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2015 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_ether.h>
  14 #include <ethdev_driver.h>
  15 #include <rte_log.h>
  16 #include <rte_memzone.h>
  17 #include <rte_malloc.h>
  18 #include <rte_arp.h>
  19 #include <rte_ip.h>
  20 #include <rte_udp.h>
  21 #include <rte_tcp.h>
  22 #include <rte_sctp.h>
  23 #include <rte_hash_crc.h>
  24 #include <rte_bitmap.h>
  25
  26 #include "i40e_logs.h"
  27 #include "base/i40e_type.h"
  28 #include "base/i40e_prototype.h"
  29 #include "i40e_ethdev.h"
  30 #include "i40e_rxtx.h"
  31
  32 #define I40E_FDIR_MZ_NAME          "FDIR_MEMZONE"
  33 #ifndef IPV6_ADDR_LEN
  34 #define IPV6_ADDR_LEN              16
  35 #endif
  36
  37 #ifndef IPPROTO_L2TP
  38 #define IPPROTO_L2TP              115
  39 #endif
  40
  41 #define I40E_FDIR_PKT_LEN                   512
  42 #define I40E_FDIR_IP_DEFAULT_LEN            420
  43 #define I40E_FDIR_IP_DEFAULT_TTL            0x40
  44 #define I40E_FDIR_IP_DEFAULT_VERSION_IHL    0x45
  45 #define I40E_FDIR_TCP_DEFAULT_DATAOFF       0x50
  46 #define I40E_FDIR_IPv6_DEFAULT_VTC_FLOW     0x60000000
  47
  48 #define I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS   0xFF
  49 #define I40E_FDIR_IPv6_PAYLOAD_LEN          380
  50 #define I40E_FDIR_UDP_DEFAULT_LEN           400
  51 #define I40E_FDIR_GTP_DEFAULT_LEN           384
  52 #define I40E_FDIR_INNER_IP_DEFAULT_LEN      384
  53 #define I40E_FDIR_INNER_IPV6_DEFAULT_LEN    344
  54
  55 #define I40E_FDIR_GTPC_DST_PORT             2123
  56 #define I40E_FDIR_GTPU_DST_PORT             2152
  57 #define I40E_FDIR_GTP_VER_FLAG_0X30         0x30
  58 #define I40E_FDIR_GTP_VER_FLAG_0X32         0x32
  59 #define I40E_FDIR_GTP_MSG_TYPE_0X01         0x01
  60 #define I40E_FDIR_GTP_MSG_TYPE_0XFF         0xFF
  61
  62 #define I40E_FDIR_ESP_DST_PORT              4500
  63
  64 /* Wait time for fdir filter programming */
  65 #define I40E_FDIR_MAX_WAIT_US 10000
  66
  67 /* Wait count and interval for fdir filter flush */
  68 #define I40E_FDIR_FLUSH_RETRY       50
  69 #define I40E_FDIR_FLUSH_INTERVAL_MS 5
  70
  71 #define I40E_COUNTER_PF           2
  72 /* Statistic counter index for one pf */
  73 #define I40E_COUNTER_INDEX_FDIR(pf_id)   (0 + (pf_id) * I40E_COUNTER_PF)
  74
  75 #define I40E_FDIR_FLOWS ( \
  76         (1ULL << RTE_ETH_FLOW_FRAG_IPV4) | \
  77         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_UDP) | \
  78         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_TCP) | \
  79         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_SCTP) | \
  80         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_OTHER) | \
  81         (1ULL << RTE_ETH_FLOW_FRAG_IPV6) | \
  82         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_UDP) | \
  83         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_TCP) | \
  84         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_SCTP) | \
  85         (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER) | \
  86         (1ULL << RTE_ETH_FLOW_L2_PAYLOAD))
  87
  88 static int i40e_fdir_filter_convert(const struct i40e_fdir_filter_conf *input,
  89                          struct i40e_fdir_filter *filter);
  90 static struct i40e_fdir_filter *
  91 i40e_sw_fdir_filter_lookup(struct i40e_fdir_info *fdir_info,
  92                         const struct i40e_fdir_input *input);
  93 static int i40e_sw_fdir_filter_insert(struct i40e_pf *pf,
  94                                    struct i40e_fdir_filter *filter);
  95 static int
  96 i40e_flow_fdir_filter_programming(struct i40e_pf *pf,
  97                                   enum i40e_filter_pctype pctype,
  98                                   const struct i40e_fdir_filter_conf *filter,
  99                                   bool add, bool wait_status);
 100
 101 static int
 102 i40e_fdir_rx_queue_init(struct i40e_rx_queue *rxq)
 103 {
 104         struct i40e_hw *hw = I40E_VSI_TO_HW(rxq->vsi);
 105         struct i40e_hmc_obj_rxq rx_ctx;
 106         int err = I40E_SUCCESS;
 107
 108         memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
 109         /* Init the RX queue in hardware */
 110         rx_ctx.dbuff = I40E_RXBUF_SZ_1024 >> I40E_RXQ_CTX_DBUFF_SHIFT;
 111         rx_ctx.hbuff = 0;
 112         rx_ctx.base = rxq->rx_ring_phys_addr / I40E_QUEUE_BASE_ADDR_UNIT;
 113         rx_ctx.qlen = rxq->nb_rx_desc;
 114 #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
 115         rx_ctx.dsize = 1;
 116 #endif
 117         rx_ctx.dtype = i40e_header_split_none;
 118         rx_ctx.hsplit_0 = I40E_HEADER_SPLIT_NONE;
 119         rx_ctx.rxmax = I40E_ETH_MAX_LEN;
 120         rx_ctx.tphrdesc_ena = 1;
 121         rx_ctx.tphwdesc_ena = 1;
 122         rx_ctx.tphdata_ena = 1;
 123         rx_ctx.tphhead_ena = 1;
 124         rx_ctx.lrxqthresh = 2;
 125         rx_ctx.crcstrip = 0;
 126         rx_ctx.l2tsel = 1;
 127         rx_ctx.showiv = 0;
 128         rx_ctx.prefena = 1;
 129
 130         err = i40e_clear_lan_rx_queue_context(hw, rxq->reg_idx);
 131         if (err != I40E_SUCCESS) {
 132                 PMD_DRV_LOG(ERR, "Failed to clear FDIR RX queue context.");
 133                 return err;
 134         }
 135         err = i40e_set_lan_rx_queue_context(hw, rxq->reg_idx, &rx_ctx);
 136         if (err != I40E_SUCCESS) {
 137                 PMD_DRV_LOG(ERR, "Failed to set FDIR RX queue context.");
 138                 return err;
 139         }
 140         rxq->qrx_tail = hw->hw_addr +
 141                 I40E_QRX_TAIL(rxq->vsi->base_queue);
 142
 143         rte_wmb();
 144         /* Init the RX tail regieter. */
 145         I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 146
 147         return err;
 148 }
 149
 150 /*
 151  * i40e_fdir_setup - reserve and initialize the Flow Director resources
 152  * @pf: board private structure
 153  */
 154 int
 155 i40e_fdir_setup(struct i40e_pf *pf)
 156 {
 157         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
 158         struct i40e_vsi *vsi;
 159         int err = I40E_SUCCESS;
 160         char z_name[RTE_MEMZONE_NAMESIZE];
 161         const struct rte_memzone *mz = NULL;
 162         struct rte_eth_dev *eth_dev = pf->adapter->eth_dev;
 163         uint16_t i;
 164
 165         if ((pf->flags & I40E_FLAG_FDIR) == 0) {
 166                 PMD_INIT_LOG(ERR, "HW doesn't support FDIR");
 167                 return I40E_NOT_SUPPORTED;
 168         }
 169
 170         PMD_DRV_LOG(INFO, "FDIR HW Capabilities: num_filters_guaranteed = %u,"
 171                         " num_filters_best_effort = %u.",
 172                         hw->func_caps.fd_filters_guaranteed,
 173                         hw->func_caps.fd_filters_best_effort);
 174
 175         vsi = pf->fdir.fdir_vsi;
 176         if (vsi) {
 177                 PMD_DRV_LOG(INFO, "FDIR initialization has been done.");
 178                 return I40E_SUCCESS;
 179         }
 180
 181         /* make new FDIR VSI */
 182         vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR, pf->main_vsi, 0);
 183         if (!vsi) {
 184                 PMD_DRV_LOG(ERR, "Couldn't create FDIR VSI.");
 185                 return I40E_ERR_NO_AVAILABLE_VSI;
 186         }
 187         pf->fdir.fdir_vsi = vsi;
 188
 189         /*Fdir tx queue setup*/
 190         err = i40e_fdir_setup_tx_resources(pf);
 191         if (err) {
 192                 PMD_DRV_LOG(ERR, "Failed to setup FDIR TX resources.");
 193                 goto fail_setup_tx;
 194         }
 195
 196         /*Fdir rx queue setup*/
 197         err = i40e_fdir_setup_rx_resources(pf);
 198         if (err) {
 199                 PMD_DRV_LOG(ERR, "Failed to setup FDIR RX resources.");
 200                 goto fail_setup_rx;
 201         }
 202
 203         err = i40e_tx_queue_init(pf->fdir.txq);
 204         if (err) {
 205                 PMD_DRV_LOG(ERR, "Failed to do FDIR TX initialization.");
 206                 goto fail_mem;
 207         }
 208
 209         /* need switch on before dev start*/
 210         err = i40e_switch_tx_queue(hw, vsi->base_queue, TRUE);
 211         if (err) {
 212                 PMD_DRV_LOG(ERR, "Failed to do fdir TX switch on.");
 213                 goto fail_mem;
 214         }
 215
 216         /* Init the rx queue in hardware */
 217         err = i40e_fdir_rx_queue_init(pf->fdir.rxq);
 218         if (err) {
 219                 PMD_DRV_LOG(ERR, "Failed to do FDIR RX initialization.");
 220                 goto fail_mem;
 221         }
 222
 223         /* switch on rx queue */
 224         err = i40e_switch_rx_queue(hw, vsi->base_queue, TRUE);
 225         if (err) {
 226                 PMD_DRV_LOG(ERR, "Failed to do FDIR RX switch on.");
 227                 goto fail_mem;
 228         }
 229
 230         /* enable FDIR MSIX interrupt */
 231         vsi->nb_used_qps = 1;
 232         i40e_vsi_queues_bind_intr(vsi, I40E_ITR_INDEX_NONE);
 233         i40e_vsi_enable_queues_intr(vsi);
 234
 235         /* reserve memory for the fdir programming packet */
 236         snprintf(z_name, sizeof(z_name), "%s_%s_%d",
 237                         eth_dev->device->driver->name,
 238                         I40E_FDIR_MZ_NAME,
 239                         eth_dev->data->port_id);
 240         mz = i40e_memzone_reserve(z_name, I40E_FDIR_PKT_LEN *
 241                         I40E_FDIR_PRG_PKT_CNT, SOCKET_ID_ANY);
 242         if (!mz) {
 243                 PMD_DRV_LOG(ERR, "Cannot init memzone for "
 244                                  "flow director program packet.");
 245                 err = I40E_ERR_NO_MEMORY;
 246                 goto fail_mem;
 247         }
 248
 249         for (i = 0; i < I40E_FDIR_PRG_PKT_CNT; i++) {
 250                 pf->fdir.prg_pkt[i] = (uint8_t *)mz->addr +
 251                         I40E_FDIR_PKT_LEN * i;
 252                 pf->fdir.dma_addr[i] = mz->iova +
 253                         I40E_FDIR_PKT_LEN * i;
 254         }
 255
 256         pf->fdir.match_counter_index = I40E_COUNTER_INDEX_FDIR(hw->pf_id);
 257         pf->fdir.fdir_actual_cnt = 0;
 258         pf->fdir.fdir_guarantee_free_space =
 259                 pf->fdir.fdir_guarantee_total_space;
 260
 261         PMD_DRV_LOG(INFO, "FDIR setup successfully, with programming queue %u.",
 262                     vsi->base_queue);
 263         return I40E_SUCCESS;
 264
 265 fail_mem:
 266         i40e_dev_rx_queue_release(pf->fdir.rxq);
 267         pf->fdir.rxq = NULL;
 268 fail_setup_rx:
 269         i40e_dev_tx_queue_release(pf->fdir.txq);
 270         pf->fdir.txq = NULL;
 271 fail_setup_tx:
 272         i40e_vsi_release(vsi);
 273         pf->fdir.fdir_vsi = NULL;
 274         return err;
 275 }
 276
 277 /*
 278  * i40e_fdir_teardown - release the Flow Director resources
 279  * @pf: board private structure
 280  */
 281 void
 282 i40e_fdir_teardown(struct i40e_pf *pf)
 283 {
 284         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
 285         struct i40e_vsi *vsi;
 286         struct rte_eth_dev *dev = pf->adapter->eth_dev;
 287
 288         vsi = pf->fdir.fdir_vsi;
 289         if (!vsi)
 290                 return;
 291
 292         /* disable FDIR MSIX interrupt */
 293         i40e_vsi_queues_unbind_intr(vsi);
 294         i40e_vsi_disable_queues_intr(vsi);
 295
 296         int err = i40e_switch_tx_queue(hw, vsi->base_queue, FALSE);
 297         if (err)
 298                 PMD_DRV_LOG(DEBUG, "Failed to do FDIR TX switch off");
 299         err = i40e_switch_rx_queue(hw, vsi->base_queue, FALSE);
 300         if (err)
 301                 PMD_DRV_LOG(DEBUG, "Failed to do FDIR RX switch off");
 302
 303         i40e_dev_rx_queue_release(pf->fdir.rxq);
 304         rte_eth_dma_zone_free(dev, "fdir_rx_ring", pf->fdir.rxq->queue_id);
 305         pf->fdir.rxq = NULL;
 306         i40e_dev_tx_queue_release(pf->fdir.txq);
 307         rte_eth_dma_zone_free(dev, "fdir_tx_ring", pf->fdir.txq->queue_id);
 308         pf->fdir.txq = NULL;
 309         i40e_vsi_release(vsi);
 310         pf->fdir.fdir_vsi = NULL;
 311 }
 312
 313 /* check whether the flow director table in empty */
 314 static inline int
 315 i40e_fdir_empty(struct i40e_hw *hw)
 316 {
 317         uint32_t guarant_cnt, best_cnt;
 318
 319         guarant_cnt = (uint32_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
 320                                  I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
 321                                  I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
 322         best_cnt = (uint32_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
 323                               I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
 324                               I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
 325         if (best_cnt + guarant_cnt > 0)
 326                 return -1;
 327
 328         return 0;
 329 }
 330
 331 /*
 332  * Initialize the configuration about bytes stream extracted as flexible payload
 333  * and mask setting
 334  */
 335 static inline void
 336 i40e_init_flx_pld(struct i40e_pf *pf)
 337 {
 338         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
 339         uint8_t pctype;
 340         int i, index;
 341         uint16_t flow_type;
 342
 343         /*
 344          * Define the bytes stream extracted as flexible payload in
 345          * field vector. By default, select 8 words from the beginning
 346          * of payload as flexible payload.
 347          */
 348         for (i = I40E_FLXPLD_L2_IDX; i < I40E_MAX_FLXPLD_LAYER; i++) {
 349                 index = i * I40E_MAX_FLXPLD_FIED;
 350                 pf->fdir.flex_set[index].src_offset = 0;
 351                 pf->fdir.flex_set[index].size = I40E_FDIR_MAX_FLEXWORD_NUM;
 352                 pf->fdir.flex_set[index].dst_offset = 0;
 353                 I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(index), 0x0000C900);
 354                 I40E_WRITE_REG(hw,
 355                         I40E_PRTQF_FLX_PIT(index + 1), 0x0000FC29);/*non-used*/
 356                 I40E_WRITE_REG(hw,
 357                         I40E_PRTQF_FLX_PIT(index + 2), 0x0000FC2A);/*non-used*/
 358                 pf->fdir.flex_pit_flag[i] = 0;
 359         }
 360
 361         /* initialize the masks */
 362         for (pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
 363              pctype <= I40E_FILTER_PCTYPE_L2_PAYLOAD; pctype++) {
 364                 flow_type = i40e_pctype_to_flowtype(pf->adapter, pctype);
 365
 366                 if (flow_type == RTE_ETH_FLOW_UNKNOWN)
 367                         continue;
 368                 pf->fdir.flex_mask[pctype].word_mask = 0;
 369                 i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), 0);
 370                 for (i = 0; i < I40E_FDIR_BITMASK_NUM_WORD; i++) {
 371                         pf->fdir.flex_mask[pctype].bitmask[i].offset = 0;
 372                         pf->fdir.flex_mask[pctype].bitmask[i].mask = 0;
 373                         i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), 0);
 374                 }
 375         }
 376 }
 377
 378 #define I40E_VALIDATE_FLEX_PIT(flex_pit1, flex_pit2) do { \
 379         if ((flex_pit2).src_offset < \
 380                 (flex_pit1).src_offset + (flex_pit1).size) { \
 381                 PMD_DRV_LOG(ERR, "src_offset should be not" \
 382                         " less than than previous offset" \
 383                         " + previous FSIZE."); \
 384                 return -EINVAL; \
 385         } \
 386 } while (0)
 387
 388 /*
 389  * i40e_srcoff_to_flx_pit - transform the src_offset into flex_pit structure,
 390  * and the flex_pit will be sorted by it's src_offset value
 391  */
 392 static inline uint16_t
 393 i40e_srcoff_to_flx_pit(const uint16_t *src_offset,
 394                         struct i40e_fdir_flex_pit *flex_pit)
 395 {
 396         uint16_t src_tmp, size, num = 0;
 397         uint16_t i, k, j = 0;
 398
 399         while (j < I40E_FDIR_MAX_FLEX_LEN) {
 400                 size = 1;
 401                 for (; j < I40E_FDIR_MAX_FLEX_LEN - 1; j++) {
 402                         if (src_offset[j + 1] == src_offset[j] + 1)
 403                                 size++;
 404                         else
 405                                 break;
 406                 }
 407                 src_tmp = src_offset[j] + 1 - size;
 408                 /* the flex_pit need to be sort by src_offset */
 409                 for (i = 0; i < num; i++) {
 410                         if (src_tmp < flex_pit[i].src_offset)
 411                                 break;
 412                 }
 413                 /* if insert required, move backward */
 414                 for (k = num; k > i; k--)
 415                         flex_pit[k] = flex_pit[k - 1];
 416                 /* insert */
 417                 flex_pit[i].dst_offset = j + 1 - size;
 418                 flex_pit[i].src_offset = src_tmp;
 419                 flex_pit[i].size = size;
 420                 j++;
 421                 num++;
 422         }
 423         return num;
 424 }
 425
 426 /* i40e_check_fdir_flex_payload -check flex payload configuration arguments */
 427 static inline int
 428 i40e_check_fdir_flex_payload(const struct rte_eth_flex_payload_cfg *flex_cfg)
 429 {
 430         struct i40e_fdir_flex_pit flex_pit[I40E_FDIR_MAX_FLEX_LEN];
 431         uint16_t num, i;
 432
 433         for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i++) {
 434                 if (flex_cfg->src_offset[i] >= I40E_MAX_FLX_SOURCE_OFF) {
 435                         PMD_DRV_LOG(ERR, "exceeds maxmial payload limit.");
 436                         return -EINVAL;
 437                 }
 438         }
 439
 440         memset(flex_pit, 0, sizeof(flex_pit));
 441         num = i40e_srcoff_to_flx_pit(flex_cfg->src_offset, flex_pit);
 442         if (num > I40E_MAX_FLXPLD_FIED) {
 443                 PMD_DRV_LOG(ERR, "exceeds maxmial number of flex fields.");
 444                 return -EINVAL;
 445         }
 446         for (i = 0; i < num; i++) {
 447                 if (flex_pit[i].size & 0x01 || flex_pit[i].dst_offset & 0x01 ||
 448                         flex_pit[i].src_offset & 0x01) {
 449                         PMD_DRV_LOG(ERR, "flexpayload should be measured"
 450                                 " in word");
 451                         return -EINVAL;
 452                 }
 453                 if (i != num - 1)
 454                         I40E_VALIDATE_FLEX_PIT(flex_pit[i], flex_pit[i + 1]);
 455         }
 456         return 0;
 457 }
 458
 459 /*
 460  * i40e_check_fdir_flex_conf -check if the flex payload and mask configuration
 461  * arguments are valid
 462  */
 463 static int
 464 i40e_check_fdir_flex_conf(const struct i40e_adapter *adapter,
 465                           const struct rte_eth_fdir_flex_conf *conf)
 466 {
 467         const struct rte_eth_flex_payload_cfg *flex_cfg;
 468         const struct rte_eth_fdir_flex_mask *flex_mask;
 469         uint16_t mask_tmp;
 470         uint8_t nb_bitmask;
 471         uint16_t i, j;
 472         int ret = 0;
 473         enum i40e_filter_pctype pctype;
 474
 475         if (conf == NULL) {
 476                 PMD_DRV_LOG(INFO, "NULL pointer.");
 477                 return -EINVAL;
 478         }
 479         /* check flexible payload setting configuration */
 480         if (conf->nb_payloads > RTE_ETH_L4_PAYLOAD) {
 481                 PMD_DRV_LOG(ERR, "invalid number of payload setting.");
 482                 return -EINVAL;
 483         }
 484         for (i = 0; i < conf->nb_payloads; i++) {
 485                 flex_cfg = &conf->flex_set[i];
 486                 if (flex_cfg->type > RTE_ETH_L4_PAYLOAD) {
 487                         PMD_DRV_LOG(ERR, "invalid payload type.");
 488                         return -EINVAL;
 489                 }
 490                 ret = i40e_check_fdir_flex_payload(flex_cfg);
 491                 if (ret < 0) {
 492                         PMD_DRV_LOG(ERR, "invalid flex payload arguments.");
 493                         return -EINVAL;
 494                 }
 495         }
 496
 497         /* check flex mask setting configuration */
 498         if (conf->nb_flexmasks >= RTE_ETH_FLOW_MAX) {
 499                 PMD_DRV_LOG(ERR, "invalid number of flex masks.");
 500                 return -EINVAL;
 501         }
 502         for (i = 0; i < conf->nb_flexmasks; i++) {
 503                 flex_mask = &conf->flex_mask[i];
 504                 pctype = i40e_flowtype_to_pctype(adapter, flex_mask->flow_type);
 505                 if (pctype == I40E_FILTER_PCTYPE_INVALID) {
 506                         PMD_DRV_LOG(WARNING, "invalid flow type.");
 507                         return -EINVAL;
 508                 }
 509                 nb_bitmask = 0;
 510                 for (j = 0; j < I40E_FDIR_MAX_FLEX_LEN; j += sizeof(uint16_t)) {
 511                         mask_tmp = I40E_WORD(flex_mask->mask[j],
 512                                              flex_mask->mask[j + 1]);
 513                         if (mask_tmp != 0x0 && mask_tmp != UINT16_MAX) {
 514                                 nb_bitmask++;
 515                                 if (nb_bitmask > I40E_FDIR_BITMASK_NUM_WORD) {
 516                                         PMD_DRV_LOG(ERR, " exceed maximal"
 517                                                 " number of bitmasks.");
 518                                         return -EINVAL;
 519                                 }
 520                         }
 521                 }
 522         }
 523         return 0;
 524 }
 525
 526 /*
 527  * i40e_set_flx_pld_cfg -configure the rule how bytes stream is extracted as flexible payload
 528  * @pf: board private structure
 529  * @cfg: the rule how bytes stream is extracted as flexible payload
 530  */
 531 static void
 532 i40e_set_flx_pld_cfg(struct i40e_pf *pf,
 533                          const struct rte_eth_flex_payload_cfg *cfg)
 534 {
 535         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
 536         struct i40e_fdir_flex_pit flex_pit[I40E_MAX_FLXPLD_FIED];
 537         uint32_t flx_pit, flx_ort;
 538         uint16_t num, min_next_off;  /* in words */
 539         uint8_t field_idx = 0;
 540         uint8_t layer_idx = 0;
 541         uint16_t i;
 542
 543         if (cfg->type == RTE_ETH_L2_PAYLOAD)
 544                 layer_idx = I40E_FLXPLD_L2_IDX;
 545         else if (cfg->type == RTE_ETH_L3_PAYLOAD)
 546                 layer_idx = I40E_FLXPLD_L3_IDX;
 547         else if (cfg->type == RTE_ETH_L4_PAYLOAD)
 548                 layer_idx = I40E_FLXPLD_L4_IDX;
 549
 550         memset(flex_pit, 0, sizeof(flex_pit));
 551         num = RTE_MIN(i40e_srcoff_to_flx_pit(cfg->src_offset, flex_pit),
 552                       RTE_DIM(flex_pit));
 553
 554         if (num) {
 555                 flx_ort = (1 << I40E_GLQF_ORT_FLX_PAYLOAD_SHIFT) |
 556                           (num << I40E_GLQF_ORT_FIELD_CNT_SHIFT) |
 557                           (layer_idx * I40E_MAX_FLXPLD_FIED);
 558                 I40E_WRITE_GLB_REG(hw, I40E_GLQF_ORT(33 + layer_idx), flx_ort);
 559         }
 560
 561         for (i = 0; i < num; i++) {
 562                 field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i;
 563                 /* record the info in fdir structure */
 564                 pf->fdir.flex_set[field_idx].src_offset =
 565                         flex_pit[i].src_offset / sizeof(uint16_t);
 566                 pf->fdir.flex_set[field_idx].size =
 567                         flex_pit[i].size / sizeof(uint16_t);
 568                 pf->fdir.flex_set[field_idx].dst_offset =
 569                         flex_pit[i].dst_offset / sizeof(uint16_t);
 570                 flx_pit = MK_FLX_PIT(pf->fdir.flex_set[field_idx].src_offset,
 571                                 pf->fdir.flex_set[field_idx].size,
 572                                 pf->fdir.flex_set[field_idx].dst_offset);
 573
 574                 I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(field_idx), flx_pit);
 575         }
 576         min_next_off = pf->fdir.flex_set[field_idx].src_offset +
 577                                 pf->fdir.flex_set[field_idx].size;
 578
 579         for (; i < I40E_MAX_FLXPLD_FIED; i++) {
 580                 /* set the non-used register obeying register's constrain */
 581                 flx_pit = MK_FLX_PIT(min_next_off, NONUSE_FLX_PIT_FSIZE,
 582                            NONUSE_FLX_PIT_DEST_OFF);
 583                 I40E_WRITE_REG(hw,
 584                         I40E_PRTQF_FLX_PIT(layer_idx * I40E_MAX_FLXPLD_FIED + i),
 585                         flx_pit);
 586                 min_next_off++;
 587         }
 588 }
 589
 590 /*
 591  * i40e_set_flex_mask_on_pctype - configure the mask on flexible payload
 592  * @pf: board private structure
 593  * @pctype: packet classify type
 594  * @flex_masks: mask for flexible payload
 595  */
 596 static void
 597 i40e_set_flex_mask_on_pctype(struct i40e_pf *pf,
 598                 enum i40e_filter_pctype pctype,
 599                 const struct rte_eth_fdir_flex_mask *mask_cfg)
 600 {
 601         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
 602         struct i40e_fdir_flex_mask *flex_mask;
 603         uint32_t flxinset, fd_mask;
 604         uint16_t mask_tmp;
 605         uint8_t i, nb_bitmask = 0;
 606
 607         flex_mask = &pf->fdir.flex_mask[pctype];
 608         memset(flex_mask, 0, sizeof(struct i40e_fdir_flex_mask));
 609         for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i += sizeof(uint16_t)) {
 610                 mask_tmp = I40E_WORD(mask_cfg->mask[i], mask_cfg->mask[i + 1]);
 611                 if (mask_tmp != 0x0) {
 612                         flex_mask->word_mask |=
 613                                 I40E_FLEX_WORD_MASK(i / sizeof(uint16_t));
 614                         if (mask_tmp != UINT16_MAX) {
 615                                 /* set bit mask */
 616                                 flex_mask->bitmask[nb_bitmask].mask = ~mask_tmp;
 617                                 flex_mask->bitmask[nb_bitmask].offset =
 618                                         i / sizeof(uint16_t);
 619                                 nb_bitmask++;
 620                         }
 621                 }
 622         }
 623         /* write mask to hw */
 624         flxinset = (flex_mask->word_mask <<
 625                 I40E_PRTQF_FD_FLXINSET_INSET_SHIFT) &
 626                 I40E_PRTQF_FD_FLXINSET_INSET_MASK;
 627         i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), flxinset);
 628
 629         for (i = 0; i < nb_bitmask; i++) {
 630                 fd_mask = (flex_mask->bitmask[i].mask <<
 631                         I40E_PRTQF_FD_MSK_MASK_SHIFT) &
 632                         I40E_PRTQF_FD_MSK_MASK_MASK;
 633                 fd_mask |= ((flex_mask->bitmask[i].offset +
 634                         I40E_FLX_OFFSET_IN_FIELD_VECTOR) <<
 635                         I40E_PRTQF_FD_MSK_OFFSET_SHIFT) &
 636                         I40E_PRTQF_FD_MSK_OFFSET_MASK;
 637                 i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), fd_mask);
 638         }
 639 }
 640
 641 /*
 642  * Enable/disable flow director RX processing in vector routines.
 643  */
 644 void
 645 i40e_fdir_rx_proc_enable(struct rte_eth_dev *dev, bool on)
 646 {
 647         int32_t i;
 648
 649         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 650                 struct i40e_rx_queue *rxq = dev->data->rx_queues[i];
 651                 if (!rxq)
 652                         continue;
 653                 rxq->fdir_enabled = on;
 654         }
 655         PMD_DRV_LOG(DEBUG, "Flow Director processing on RX set to %d", on);
 656 }
 657
 658 /*
 659  * Configure flow director related setting
 660  */
 661 int
 662 i40e_fdir_configure(struct rte_eth_dev *dev)
 663 {
 664         struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 665         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 666         struct rte_eth_fdir_flex_conf *conf;
 667         enum i40e_filter_pctype pctype;
 668         uint32_t val;
 669         uint8_t i;
 670         int ret = 0;
 671
 672         /*
 673         * configuration need to be done before
 674         * flow director filters are added
 675         * If filters exist, flush them.
 676         */
 677         if (i40e_fdir_empty(hw) < 0) {
 678                 ret = i40e_fdir_flush(dev);
 679                 if (ret) {
 680                         PMD_DRV_LOG(ERR, "failed to flush fdir table.");
 681                         return ret;
 682                 }
 683         }
 684
 685         /* enable FDIR filter */
 686         val = i40e_read_rx_ctl(hw, I40E_PFQF_CTL_0);
 687         val |= I40E_PFQF_CTL_0_FD_ENA_MASK;
 688         i40e_write_rx_ctl(hw, I40E_PFQF_CTL_0, val);
 689
 690         i40e_init_flx_pld(pf); /* set flex config to default value */
 691
 692         conf = &dev->data->dev_conf.fdir_conf.flex_conf;
 693         ret = i40e_check_fdir_flex_conf(pf->adapter, conf);
 694         if (ret < 0) {
 695                 PMD_DRV_LOG(ERR, " invalid configuration arguments.");
 696                 return -EINVAL;
 697         }
 698
 699         if (!pf->support_multi_driver) {
 700                 /* configure flex payload */
 701                 for (i = 0; i < conf->nb_payloads; i++)
 702                         i40e_set_flx_pld_cfg(pf, &conf->flex_set[i]);
 703                 /* configure flex mask*/
 704                 for (i = 0; i < conf->nb_flexmasks; i++) {
 705                         if (hw->mac.type == I40E_MAC_X722) {
 706                                 /* get pctype value in fd pctype register */
 707                                 pctype = (enum i40e_filter_pctype)
 708                                           i40e_read_rx_ctl(hw,
 709                                                 I40E_GLQF_FD_PCTYPES(
 710                                                 (int)i40e_flowtype_to_pctype(
 711                                                 pf->adapter,
 712                                                 conf->flex_mask[i].flow_type)));
 713                         } else {
 714                                 pctype = i40e_flowtype_to_pctype(pf->adapter,
 715                                                   conf->flex_mask[i].flow_type);
 716                         }
 717
 718                         i40e_set_flex_mask_on_pctype(pf, pctype,
 719                                                      &conf->flex_mask[i]);
 720                 }
 721         } else {
 722                 PMD_DRV_LOG(ERR, "Not support flexible payload.");
 723         }
 724
 725         /* Enable FDIR processing in RX routines */
 726         i40e_fdir_rx_proc_enable(dev, 1);
 727
 728         return ret;
 729 }
 730
 731
 732 static struct i40e_customized_pctype *
 733 i40e_flow_fdir_find_customized_pctype(struct i40e_pf *pf, uint8_t pctype)
 734 {
 735         struct i40e_customized_pctype *cus_pctype;
 736         enum i40e_new_pctype i = I40E_CUSTOMIZED_GTPC;
 737
 738         for (; i < I40E_CUSTOMIZED_MAX; i++) {
 739                 cus_pctype = &pf->customized_pctype[i];
 740                 if (pctype == cus_pctype->pctype)
 741                         return cus_pctype;
 742         }
 743         return NULL;
 744 }
 745
 746 static inline int
 747 fill_ip6_head(const struct i40e_fdir_input *fdir_input, unsigned char *raw_pkt,
 748                 uint8_t next_proto, uint8_t len, uint16_t *ether_type)
 749 {
 750         struct rte_ipv6_hdr *ip6;
 751
 752         ip6 = (struct rte_ipv6_hdr *)raw_pkt;
 753
 754         *ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
 755         ip6->vtc_flow = rte_cpu_to_be_32(I40E_FDIR_IPv6_DEFAULT_VTC_FLOW |
 756                 (fdir_input->flow.ipv6_flow.tc << I40E_FDIR_IPv6_TC_OFFSET));
 757         ip6->payload_len = rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
 758         ip6->proto = fdir_input->flow.ipv6_flow.proto ?
 759                 fdir_input->flow.ipv6_flow.proto : next_proto;
 760         ip6->hop_limits = fdir_input->flow.ipv6_flow.hop_limits ?
 761                 fdir_input->flow.ipv6_flow.hop_limits :
 762                 I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS;
 763         /**
 764          * The source and destination fields in the transmitted packet
 765          * need to be presented in a reversed order with respect
 766          * to the expected received packets.
 767          */
 768         rte_memcpy(&ip6->src_addr, &fdir_input->flow.ipv6_flow.dst_ip,
 769                 IPV6_ADDR_LEN);
 770         rte_memcpy(&ip6->dst_addr, &fdir_input->flow.ipv6_flow.src_ip,
 771                 IPV6_ADDR_LEN);
 772         len += sizeof(struct rte_ipv6_hdr);
 773
 774         return len;
 775 }
 776
 777 static inline int
 778 fill_ip4_head(const struct i40e_fdir_input *fdir_input, unsigned char *raw_pkt,
 779                 uint8_t next_proto, uint8_t len, uint16_t *ether_type)
 780 {
 781         struct rte_ipv4_hdr *ip4;
 782
 783         ip4 = (struct rte_ipv4_hdr *)raw_pkt;
 784
 785         *ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
 786         ip4->version_ihl = I40E_FDIR_IP_DEFAULT_VERSION_IHL;
 787         /* set len to by default */
 788         ip4->total_length = rte_cpu_to_be_16(I40E_FDIR_IP_DEFAULT_LEN);
 789         ip4->time_to_live = fdir_input->flow.ip4_flow.ttl ?
 790                 fdir_input->flow.ip4_flow.ttl :
 791                 I40E_FDIR_IP_DEFAULT_TTL;
 792         ip4->type_of_service = fdir_input->flow.ip4_flow.tos;
 793         ip4->next_proto_id = fdir_input->flow.ip4_flow.proto ?
 794                 fdir_input->flow.ip4_flow.proto : next_proto;
 795         /**
 796          * The source and destination fields in the transmitted packet
 797          * need to be presented in a reversed order with respect
 798          * to the expected received packets.
 799          */
 800         ip4->src_addr = fdir_input->flow.ip4_flow.dst_ip;
 801         ip4->dst_addr = fdir_input->flow.ip4_flow.src_ip;
 802         len += sizeof(struct rte_ipv4_hdr);
 803
 804         return len;
 805 }
 806
 807 static inline int
 808 i40e_flow_fdir_fill_eth_ip_head(struct i40e_pf *pf,
 809                                 const struct i40e_fdir_input *fdir_input,
 810                                 unsigned char *raw_pkt,
 811                                 bool vlan)
 812 {
 813         struct i40e_customized_pctype *cus_pctype = NULL;
 814         static uint8_t vlan_frame[] = {0x81, 0, 0, 0};
 815         uint16_t *ether_type;
 816         uint8_t len = 2 * sizeof(struct rte_ether_addr);
 817         uint8_t pctype = fdir_input->pctype;
 818         bool is_customized_pctype = fdir_input->flow_ext.customized_pctype;
 819         static const uint8_t next_proto[] = {
 820                 [I40E_FILTER_PCTYPE_FRAG_IPV4] = IPPROTO_IP,
 821                 [I40E_FILTER_PCTYPE_NONF_IPV4_TCP] = IPPROTO_TCP,
 822                 [I40E_FILTER_PCTYPE_NONF_IPV4_UDP] = IPPROTO_UDP,
 823                 [I40E_FILTER_PCTYPE_NONF_IPV4_SCTP] = IPPROTO_SCTP,
 824                 [I40E_FILTER_PCTYPE_NONF_IPV4_OTHER] = IPPROTO_IP,
 825                 [I40E_FILTER_PCTYPE_FRAG_IPV6] = IPPROTO_NONE,
 826                 [I40E_FILTER_PCTYPE_NONF_IPV6_TCP] = IPPROTO_TCP,
 827                 [I40E_FILTER_PCTYPE_NONF_IPV6_UDP] = IPPROTO_UDP,
 828                 [I40E_FILTER_PCTYPE_NONF_IPV6_SCTP] = IPPROTO_SCTP,
 829                 [I40E_FILTER_PCTYPE_NONF_IPV6_OTHER] = IPPROTO_NONE,
 830         };
 831
 832         rte_memcpy(raw_pkt, &fdir_input->flow.l2_flow.dst,
 833                 sizeof(struct rte_ether_addr));
 834         rte_memcpy(raw_pkt + sizeof(struct rte_ether_addr),
 835                 &fdir_input->flow.l2_flow.src,
 836                 sizeof(struct rte_ether_addr));
 837         raw_pkt += 2 * sizeof(struct rte_ether_addr);
 838
 839         if (vlan && fdir_input->flow_ext.vlan_tci) {
 840                 rte_memcpy(raw_pkt, vlan_frame, sizeof(vlan_frame));
 841                 rte_memcpy(raw_pkt + sizeof(uint16_t),
 842                            &fdir_input->flow_ext.vlan_tci,
 843                            sizeof(uint16_t));
 844                 raw_pkt += sizeof(vlan_frame);
 845                 len += sizeof(vlan_frame);
 846         }
 847         ether_type = (uint16_t *)raw_pkt;
 848         raw_pkt += sizeof(uint16_t);
 849         len += sizeof(uint16_t);
 850
 851         if (is_customized_pctype) {
 852                 cus_pctype = i40e_flow_fdir_find_customized_pctype(pf, pctype);
 853                 if (!cus_pctype) {
 854                         PMD_DRV_LOG(ERR, "unknown pctype %u.",
 855                                     fdir_input->pctype);
 856                         return -1;
 857                 }
 858         }
 859
 860         if (pctype == I40E_FILTER_PCTYPE_L2_PAYLOAD)
 861                 *ether_type = fdir_input->flow.l2_flow.ether_type;
 862         else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_TCP ||
 863                  pctype == I40E_FILTER_PCTYPE_NONF_IPV4_UDP ||
 864                  pctype == I40E_FILTER_PCTYPE_NONF_IPV4_SCTP ||
 865                  pctype == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER ||
 866                  pctype == I40E_FILTER_PCTYPE_FRAG_IPV4 ||
 867                  pctype == I40E_FILTER_PCTYPE_NONF_IPV6_TCP ||
 868                  pctype == I40E_FILTER_PCTYPE_NONF_IPV6_UDP ||
 869                  pctype == I40E_FILTER_PCTYPE_NONF_IPV6_SCTP ||
 870                  pctype == I40E_FILTER_PCTYPE_NONF_IPV6_OTHER ||
 871                  pctype == I40E_FILTER_PCTYPE_FRAG_IPV6 ||
 872                  is_customized_pctype) {
 873                 if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_TCP ||
 874                         pctype == I40E_FILTER_PCTYPE_NONF_IPV4_UDP ||
 875                         pctype == I40E_FILTER_PCTYPE_NONF_IPV4_SCTP ||
 876                         pctype == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER ||
 877                         pctype == I40E_FILTER_PCTYPE_FRAG_IPV4) {
 878                         len = fill_ip4_head(fdir_input, raw_pkt,
 879                                         next_proto[pctype], len, ether_type);
 880                 } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_TCP ||
 881                         pctype == I40E_FILTER_PCTYPE_NONF_IPV6_UDP ||
 882                         pctype == I40E_FILTER_PCTYPE_NONF_IPV6_SCTP ||
 883                         pctype == I40E_FILTER_PCTYPE_NONF_IPV6_OTHER ||
 884                         pctype == I40E_FILTER_PCTYPE_FRAG_IPV6) {
 885                         len = fill_ip6_head(fdir_input, raw_pkt,
 886                                         next_proto[pctype], len,
 887                                         ether_type);
 888                 } else if (cus_pctype->index == I40E_CUSTOMIZED_GTPC ||
 889                          cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV4 ||
 890                          cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV6 ||
 891                          cus_pctype->index == I40E_CUSTOMIZED_GTPU) {
 892                         len = fill_ip4_head(fdir_input, raw_pkt, IPPROTO_UDP,
 893                                         len, ether_type);
 894                 } else if (cus_pctype->index == I40E_CUSTOMIZED_IPV4_L2TPV3) {
 895                         len = fill_ip4_head(fdir_input, raw_pkt, IPPROTO_L2TP,
 896                                         len, ether_type);
 897                 } else if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV4) {
 898                         len = fill_ip4_head(fdir_input, raw_pkt, IPPROTO_ESP,
 899                                         len, ether_type);
 900                 } else if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV4_UDP) {
 901                         len = fill_ip4_head(fdir_input, raw_pkt, IPPROTO_UDP,
 902                                         len, ether_type);
 903                 } else if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV4_UDP) {
 904                         len = fill_ip4_head(fdir_input, raw_pkt, IPPROTO_UDP,
 905                                         len, ether_type);
 906                 } else if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV6)
 907                         len = fill_ip6_head(fdir_input, raw_pkt, IPPROTO_ESP,
 908                                         len, ether_type);
 909                 else if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV6_UDP)
 910                         len = fill_ip6_head(fdir_input, raw_pkt, IPPROTO_UDP,
 911                                         len, ether_type);
 912                 else if (cus_pctype->index == I40E_CUSTOMIZED_IPV6_L2TPV3)
 913                         len = fill_ip6_head(fdir_input, raw_pkt, IPPROTO_L2TP,
 914                                         len, ether_type);
 915         } else {
 916                 PMD_DRV_LOG(ERR, "unknown pctype %u.", fdir_input->pctype);
 917                 return -1;
 918         }
 919
 920         return len;
 921 }
 922
 923 /**
 924  * i40e_flow_fdir_construct_pkt - construct packet based on fields in input
 925  * @pf: board private structure
 926  * @fdir_input: input set of the flow director entry
 927  * @raw_pkt: a packet to be constructed
 928  */
 929 static int
 930 i40e_flow_fdir_construct_pkt(struct i40e_pf *pf,
 931                              const struct i40e_fdir_input *fdir_input,
 932                              unsigned char *raw_pkt)
 933 {
 934         unsigned char *payload = NULL;
 935         unsigned char *ptr;
 936         struct rte_udp_hdr *udp;
 937         struct rte_tcp_hdr *tcp;
 938         struct rte_sctp_hdr *sctp;
 939         struct rte_flow_item_gtp *gtp;
 940         struct rte_ipv4_hdr *gtp_ipv4;
 941         struct rte_ipv6_hdr *gtp_ipv6;
 942         struct rte_flow_item_l2tpv3oip *l2tpv3oip;
 943         struct rte_flow_item_esp *esp;
 944         struct rte_ipv4_hdr *esp_ipv4;
 945         struct rte_ipv6_hdr *esp_ipv6;
 946
 947         uint8_t size, dst = 0;
 948         uint8_t i, pit_idx, set_idx = I40E_FLXPLD_L4_IDX; /* use l4 by default*/
 949         int len;
 950         uint8_t pctype = fdir_input->pctype;
 951         struct i40e_customized_pctype *cus_pctype;
 952
 953         /* raw pcket template - just copy contents of the raw packet */
 954         if (fdir_input->flow_ext.pkt_template) {
 955                 memcpy(raw_pkt, fdir_input->flow.raw_flow.packet,
 956                        fdir_input->flow.raw_flow.length);
 957                 return 0;
 958         }
 959
 960         /* fill the ethernet and IP head */
 961         len = i40e_flow_fdir_fill_eth_ip_head(pf, fdir_input, raw_pkt,
 962                                               !!fdir_input->flow_ext.vlan_tci);
 963         if (len < 0)
 964                 return -EINVAL;
 965
 966         /* fill the L4 head */
 967         if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_UDP) {
 968                 udp = (struct rte_udp_hdr *)(raw_pkt + len);
 969                 payload = (unsigned char *)udp + sizeof(struct rte_udp_hdr);
 970                 /**
 971                  * The source and destination fields in the transmitted packet
 972                  * need to be presented in a reversed order with respect
 973                  * to the expected received packets.
 974                  */
 975                 udp->src_port = fdir_input->flow.udp4_flow.dst_port;
 976                 udp->dst_port = fdir_input->flow.udp4_flow.src_port;
 977                 udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
 978         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_TCP) {
 979                 tcp = (struct rte_tcp_hdr *)(raw_pkt + len);
 980                 payload = (unsigned char *)tcp + sizeof(struct rte_tcp_hdr);
 981                 /**
 982                  * The source and destination fields in the transmitted packet
 983                  * need to be presented in a reversed order with respect
 984                  * to the expected received packets.
 985                  */
 986                 tcp->src_port = fdir_input->flow.tcp4_flow.dst_port;
 987                 tcp->dst_port = fdir_input->flow.tcp4_flow.src_port;
 988                 tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
 989         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_SCTP) {
 990                 sctp = (struct rte_sctp_hdr *)(raw_pkt + len);
 991                 payload = (unsigned char *)sctp + sizeof(struct rte_sctp_hdr);
 992                 /**
 993                  * The source and destination fields in the transmitted packet
 994                  * need to be presented in a reversed order with respect
 995                  * to the expected received packets.
 996                  */
 997                 sctp->src_port = fdir_input->flow.sctp4_flow.dst_port;
 998                 sctp->dst_port = fdir_input->flow.sctp4_flow.src_port;
 999                 sctp->tag = fdir_input->flow.sctp4_flow.verify_tag;
1000         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER ||
1001                    pctype == I40E_FILTER_PCTYPE_FRAG_IPV4) {
1002                 payload = raw_pkt + len;
1003                 set_idx = I40E_FLXPLD_L3_IDX;
1004         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_UDP) {
1005                 udp = (struct rte_udp_hdr *)(raw_pkt + len);
1006                 payload = (unsigned char *)udp + sizeof(struct rte_udp_hdr);
1007                 /**
1008                  * The source and destination fields in the transmitted packet
1009                  * need to be presented in a reversed order with respect
1010                  * to the expected received packets.
1011                  */
1012                 udp->src_port = fdir_input->flow.udp6_flow.dst_port;
1013                 udp->dst_port = fdir_input->flow.udp6_flow.src_port;
1014                 udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
1015         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_TCP) {
1016                 tcp = (struct rte_tcp_hdr *)(raw_pkt + len);
1017                 payload = (unsigned char *)tcp + sizeof(struct rte_tcp_hdr);
1018                 /**
1019                  * The source and destination fields in the transmitted packet
1020                  * need to be presented in a reversed order with respect
1021                  * to the expected received packets.
1022                  */
1023                 tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
1024                 tcp->src_port = fdir_input->flow.udp6_flow.dst_port;
1025                 tcp->dst_port = fdir_input->flow.udp6_flow.src_port;
1026         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_SCTP) {
1027                 sctp = (struct rte_sctp_hdr *)(raw_pkt + len);
1028                 payload = (unsigned char *)sctp + sizeof(struct rte_sctp_hdr);
1029                 /**
1030                  * The source and destination fields in the transmitted packet
1031                  * need to be presented in a reversed order with respect
1032                  * to the expected received packets.
1033                  */
1034                 sctp->src_port = fdir_input->flow.sctp6_flow.dst_port;
1035                 sctp->dst_port = fdir_input->flow.sctp6_flow.src_port;
1036                 sctp->tag = fdir_input->flow.sctp6_flow.verify_tag;
1037         } else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_OTHER ||
1038                    pctype == I40E_FILTER_PCTYPE_FRAG_IPV6) {
1039                 payload = raw_pkt + len;
1040                 set_idx = I40E_FLXPLD_L3_IDX;
1041         } else if (pctype == I40E_FILTER_PCTYPE_L2_PAYLOAD) {
1042                 payload = raw_pkt + len;
1043                 /**
1044                  * ARP packet is a special case on which the payload
1045                  * starts after the whole ARP header
1046                  */
1047                 if (fdir_input->flow.l2_flow.ether_type ==
1048                                 rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP))
1049                         payload += sizeof(struct rte_arp_hdr);
1050                 set_idx = I40E_FLXPLD_L2_IDX;
1051         } else if (fdir_input->flow_ext.customized_pctype) {
1052                 /* If customized pctype is used */
1053                 cus_pctype = i40e_flow_fdir_find_customized_pctype(pf, pctype);
1054                 if (cus_pctype->index == I40E_CUSTOMIZED_GTPC ||
1055                     cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV4 ||
1056                     cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV6 ||
1057                     cus_pctype->index == I40E_CUSTOMIZED_GTPU) {
1058                         udp = (struct rte_udp_hdr *)(raw_pkt + len);
1059                         udp->dgram_len =
1060                                 rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
1061
1062                         gtp = (struct rte_flow_item_gtp *)
1063                                 ((unsigned char *)udp +
1064                                         sizeof(struct rte_udp_hdr));
1065                         gtp->msg_len =
1066                                 rte_cpu_to_be_16(I40E_FDIR_GTP_DEFAULT_LEN);
1067                         gtp->teid = fdir_input->flow.gtp_flow.teid;
1068                         gtp->msg_type = I40E_FDIR_GTP_MSG_TYPE_0X01;
1069
1070                         /* GTP-C message type is not supported. */
1071                         if (cus_pctype->index == I40E_CUSTOMIZED_GTPC) {
1072                                 udp->dst_port =
1073                                       rte_cpu_to_be_16(I40E_FDIR_GTPC_DST_PORT);
1074                                 gtp->v_pt_rsv_flags =
1075                                         I40E_FDIR_GTP_VER_FLAG_0X32;
1076                         } else {
1077                                 udp->dst_port =
1078                                       rte_cpu_to_be_16(I40E_FDIR_GTPU_DST_PORT);
1079                                 gtp->v_pt_rsv_flags =
1080                                         I40E_FDIR_GTP_VER_FLAG_0X30;
1081                         }
1082
1083                         if (cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV4) {
1084                                 gtp->msg_type = I40E_FDIR_GTP_MSG_TYPE_0XFF;
1085                                 gtp_ipv4 = (struct rte_ipv4_hdr *)
1086                                         ((unsigned char *)gtp +
1087                                          sizeof(struct rte_flow_item_gtp));
1088                                 gtp_ipv4->version_ihl =
1089                                         I40E_FDIR_IP_DEFAULT_VERSION_IHL;
1090                                 gtp_ipv4->next_proto_id = IPPROTO_IP;
1091                                 gtp_ipv4->total_length =
1092                                         rte_cpu_to_be_16(
1093                                                 I40E_FDIR_INNER_IP_DEFAULT_LEN);
1094                                 payload = (unsigned char *)gtp_ipv4 +
1095                                         sizeof(struct rte_ipv4_hdr);
1096                         } else if (cus_pctype->index ==
1097                                    I40E_CUSTOMIZED_GTPU_IPV6) {
1098                                 gtp->msg_type = I40E_FDIR_GTP_MSG_TYPE_0XFF;
1099                                 gtp_ipv6 = (struct rte_ipv6_hdr *)
1100                                         ((unsigned char *)gtp +
1101                                          sizeof(struct rte_flow_item_gtp));
1102                                 gtp_ipv6->vtc_flow =
1103                                         rte_cpu_to_be_32(
1104                                                I40E_FDIR_IPv6_DEFAULT_VTC_FLOW |
1105                                                (0 << I40E_FDIR_IPv6_TC_OFFSET));
1106                                 gtp_ipv6->proto = IPPROTO_NONE;
1107                                 gtp_ipv6->payload_len =
1108                                         rte_cpu_to_be_16(
1109                                               I40E_FDIR_INNER_IPV6_DEFAULT_LEN);
1110                                 gtp_ipv6->hop_limits =
1111                                         I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS;
1112                                 payload = (unsigned char *)gtp_ipv6 +
1113                                         sizeof(struct rte_ipv6_hdr);
1114                         } else
1115                                 payload = (unsigned char *)gtp +
1116                                         sizeof(struct rte_flow_item_gtp);
1117                 } else if (cus_pctype->index == I40E_CUSTOMIZED_IPV4_L2TPV3 ||
1118                            cus_pctype->index == I40E_CUSTOMIZED_IPV6_L2TPV3) {
1119                         l2tpv3oip = (struct rte_flow_item_l2tpv3oip *)(raw_pkt
1120                                                                        + len);
1121
1122                         if (cus_pctype->index == I40E_CUSTOMIZED_IPV4_L2TPV3)
1123                                 l2tpv3oip->session_id =
1124                                  fdir_input->flow.ip4_l2tpv3oip_flow.session_id;
1125                         else
1126                                 l2tpv3oip->session_id =
1127                                  fdir_input->flow.ip6_l2tpv3oip_flow.session_id;
1128                         payload = (unsigned char *)l2tpv3oip +
1129                                 sizeof(struct rte_flow_item_l2tpv3oip);
1130                 } else if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV4 ||
1131                         cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV6 ||
1132                         cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV4_UDP ||
1133                         cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV6_UDP) {
1134                         if (cus_pctype->index == I40E_CUSTOMIZED_ESP_IPV4) {
1135                                 esp_ipv4 = (struct rte_ipv4_hdr *)
1136                                         (raw_pkt + len);
1137                                 esp = (struct rte_flow_item_esp *)esp_ipv4;
1138                                 esp->hdr.spi =
1139                                         fdir_input->flow.esp_ipv4_flow.spi;
1140                                 payload = (unsigned char *)esp +
1141                                         sizeof(struct rte_esp_hdr);
1142                                 len += sizeof(struct rte_esp_hdr);
1143                         } else if (cus_pctype->index ==
1144                                         I40E_CUSTOMIZED_ESP_IPV4_UDP) {
1145                                 esp_ipv4 = (struct rte_ipv4_hdr *)
1146                                         (raw_pkt + len);
1147                                 udp = (struct rte_udp_hdr *)esp_ipv4;
1148                                 udp->dst_port = rte_cpu_to_be_16
1149                                         (I40E_FDIR_ESP_DST_PORT);
1150
1151                                 udp->dgram_len = rte_cpu_to_be_16
1152                                                 (I40E_FDIR_UDP_DEFAULT_LEN);
1153                                 esp = (struct rte_flow_item_esp *)
1154                                         ((unsigned char *)esp_ipv4 +
1155                                                 sizeof(struct rte_udp_hdr));
1156                                 esp->hdr.spi =
1157                                         fdir_input->flow.esp_ipv4_udp_flow.spi;
1158                                 payload = (unsigned char *)esp +
1159                                         sizeof(struct rte_esp_hdr);
1160                                 len += sizeof(struct rte_udp_hdr) +
1161                                                 sizeof(struct rte_esp_hdr);
1162                         } else if (cus_pctype->index ==
1163                                         I40E_CUSTOMIZED_ESP_IPV6) {
1164                                 esp_ipv6 = (struct rte_ipv6_hdr *)
1165                                         (raw_pkt + len);
1166                                 esp = (struct rte_flow_item_esp *)esp_ipv6;
1167                                 esp->hdr.spi =
1168                                         fdir_input->flow.esp_ipv6_flow.spi;
1169                                 payload = (unsigned char *)esp +
1170                                         sizeof(struct rte_esp_hdr);
1171                                 len += sizeof(struct rte_esp_hdr);
1172                         } else if (cus_pctype->index ==
1173                                         I40E_CUSTOMIZED_ESP_IPV6_UDP) {
1174                                 esp_ipv6 = (struct rte_ipv6_hdr *)
1175                                         (raw_pkt + len);
1176                                 udp = (struct rte_udp_hdr *)esp_ipv6;
1177                                 udp->dst_port = rte_cpu_to_be_16
1178                                         (I40E_FDIR_ESP_DST_PORT);
1179
1180                                 udp->dgram_len = rte_cpu_to_be_16
1181                                         (I40E_FDIR_UDP_DEFAULT_LEN);
1182                                 esp = (struct rte_flow_item_esp *)
1183                                         ((unsigned char *)esp_ipv6 +
1184                                                 sizeof(struct rte_udp_hdr));
1185                                 esp->hdr.spi =
1186                                         fdir_input->flow.esp_ipv6_udp_flow.spi;
1187                                 payload = (unsigned char *)esp +
1188                                         sizeof(struct rte_esp_hdr);
1189                                 len += sizeof(struct rte_udp_hdr) +
1190                                                 sizeof(struct rte_esp_hdr);
1191                         }
1192                 }
1193         } else {
1194                 PMD_DRV_LOG(ERR, "unknown pctype %u.", fdir_input->pctype);
1195                 return -1;
1196         }
1197
1198         /* fill the flexbytes to payload */
1199         for (i = 0; i < I40E_MAX_FLXPLD_FIED; i++) {
1200                 pit_idx = set_idx * I40E_MAX_FLXPLD_FIED + i;
1201                 size = pf->fdir.flex_set[pit_idx].size;
1202                 if (size == 0)
1203                         continue;
1204                 dst = pf->fdir.flex_set[pit_idx].dst_offset * sizeof(uint16_t);
1205                 ptr = payload +
1206                       pf->fdir.flex_set[pit_idx].src_offset * sizeof(uint16_t);
1207                 (void)rte_memcpy(ptr,
1208                                  &fdir_input->flow_ext.flexbytes[dst],
1209                                  size * sizeof(uint16_t));
1210         }
1211
1212         return 0;
1213 }
1214
1215 /* Construct the tx flags */
1216 static inline uint64_t
1217 i40e_build_ctob(uint32_t td_cmd,
1218                 uint32_t td_offset,
1219                 unsigned int size,
1220                 uint32_t td_tag)
1221 {
1222         return rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DATA |
1223                         ((uint64_t)td_cmd  << I40E_TXD_QW1_CMD_SHIFT) |
1224                         ((uint64_t)td_offset << I40E_TXD_QW1_OFFSET_SHIFT) |
1225                         ((uint64_t)size  << I40E_TXD_QW1_TX_BUF_SZ_SHIFT) |
1226                         ((uint64_t)td_tag  << I40E_TXD_QW1_L2TAG1_SHIFT));
1227 }
1228
1229 /*
1230  * check the programming status descriptor in rx queue.
1231  * done after Programming Flow Director is programmed on
1232  * tx queue
1233  */
1234 static inline int
1235 i40e_check_fdir_programming_status(struct i40e_rx_queue *rxq)
1236 {
1237         volatile union i40e_rx_desc *rxdp;
1238         uint64_t qword1;
1239         uint32_t rx_status;
1240         uint32_t len, id;
1241         uint32_t error;
1242         int ret = 0;
1243
1244         rxdp = &rxq->rx_ring[rxq->rx_tail];
1245         qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
1246         rx_status = (qword1 & I40E_RXD_QW1_STATUS_MASK)
1247                         >> I40E_RXD_QW1_STATUS_SHIFT;
1248
1249         if (rx_status & (1 << I40E_RX_DESC_STATUS_DD_SHIFT)) {
1250                 len = qword1 >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT;
1251                 id = (qword1 & I40E_RX_PROG_STATUS_DESC_QW1_PROGID_MASK) >>
1252                             I40E_RX_PROG_STATUS_DESC_QW1_PROGID_SHIFT;
1253
1254                 if (len  == I40E_RX_PROG_STATUS_DESC_LENGTH &&
1255                     id == I40E_RX_PROG_STATUS_DESC_FD_FILTER_STATUS) {
1256                         error = (qword1 &
1257                                 I40E_RX_PROG_STATUS_DESC_QW1_ERROR_MASK) >>
1258                                 I40E_RX_PROG_STATUS_DESC_QW1_ERROR_SHIFT;
1259                         if (error == (0x1 <<
1260                                 I40E_RX_PROG_STATUS_DESC_FD_TBL_FULL_SHIFT)) {
1261                                 PMD_DRV_LOG(ERR, "Failed to add FDIR filter"
1262                                             " (FD_ID %u): programming status"
1263                                             " reported.",
1264                                             rxdp->wb.qword0.hi_dword.fd_id);
1265                                 ret = -1;
1266                         } else if (error == (0x1 <<
1267                                 I40E_RX_PROG_STATUS_DESC_NO_FD_ENTRY_SHIFT)) {
1268                                 PMD_DRV_LOG(ERR, "Failed to delete FDIR filter"
1269                                             " (FD_ID %u): programming status"
1270                                             " reported.",
1271                                             rxdp->wb.qword0.hi_dword.fd_id);
1272                                 ret = -1;
1273                         } else
1274                                 PMD_DRV_LOG(ERR, "invalid programming status"
1275                                             " reported, error = %u.", error);
1276                 } else
1277                         PMD_DRV_LOG(INFO, "unknown programming status"
1278                                     " reported, len = %d, id = %u.", len, id);
1279                 rxdp->wb.qword1.status_error_len = 0;
1280                 rxq->rx_tail++;
1281                 if (unlikely(rxq->rx_tail == rxq->nb_rx_desc))
1282                         rxq->rx_tail = 0;
1283                 if (rxq->rx_tail == 0)
1284                         I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
1285                 else
1286                         I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail - 1);
1287         }
1288
1289         return ret;
1290 }
1291
1292 static inline void
1293 i40e_fdir_programming_status_cleanup(struct i40e_rx_queue *rxq)
1294 {
1295         uint16_t retry_count = 0;
1296
1297         /* capture the previous error report(if any) from rx ring */
1298         while ((i40e_check_fdir_programming_status(rxq) < 0) &&
1299                         (++retry_count < I40E_FDIR_NUM_RX_DESC))
1300                 PMD_DRV_LOG(INFO, "error report captured.");
1301 }
1302
1303 static int
1304 i40e_fdir_filter_convert(const struct i40e_fdir_filter_conf *input,
1305                          struct i40e_fdir_filter *filter)
1306 {
1307         rte_memcpy(&filter->fdir, input, sizeof(struct i40e_fdir_filter_conf));
1308         if (input->input.flow_ext.pkt_template) {
1309                 filter->fdir.input.flow.raw_flow.packet = NULL;
1310                 filter->fdir.input.flow.raw_flow.length =
1311                         rte_hash_crc(input->input.flow.raw_flow.packet,
1312                                      input->input.flow.raw_flow.length,
1313                                      input->input.flow.raw_flow.pctype);
1314         }
1315         return 0;
1316 }
1317
1318 /* Check if there exists the flow director filter */
1319 static struct i40e_fdir_filter *
1320 i40e_sw_fdir_filter_lookup(struct i40e_fdir_info *fdir_info,
1321                         const struct i40e_fdir_input *input)
1322 {
1323         int ret;
1324
1325         if (input->flow_ext.pkt_template)
1326                 ret = rte_hash_lookup_with_hash(fdir_info->hash_table,
1327                                                 (const void *)input,
1328                                                 input->flow.raw_flow.length);
1329         else
1330                 ret = rte_hash_lookup(fdir_info->hash_table,
1331                                       (const void *)input);
1332         if (ret < 0)
1333                 return NULL;
1334
1335         return fdir_info->hash_map[ret];
1336 }
1337
1338 /* Add a flow director filter into the SW list */
1339 static int
1340 i40e_sw_fdir_filter_insert(struct i40e_pf *pf, struct i40e_fdir_filter *filter)
1341 {
1342         struct i40e_fdir_info *fdir_info = &pf->fdir;
1343         struct i40e_fdir_filter *hash_filter;
1344         int ret;
1345
1346         if (filter->fdir.input.flow_ext.pkt_template)
1347                 ret = rte_hash_add_key_with_hash(fdir_info->hash_table,
1348                                  &filter->fdir.input,
1349                                  filter->fdir.input.flow.raw_flow.length);
1350         else
1351                 ret = rte_hash_add_key(fdir_info->hash_table,
1352                                        &filter->fdir.input);
1353         if (ret < 0) {
1354                 PMD_DRV_LOG(ERR,
1355                             "Failed to insert fdir filter to hash table %d!",
1356                             ret);
1357                 return ret;
1358         }
1359
1360         if (fdir_info->hash_map[ret])
1361                 return -1;
1362
1363         hash_filter = &fdir_info->fdir_filter_array[ret];
1364         rte_memcpy(hash_filter, filter, sizeof(*filter));
1365         fdir_info->hash_map[ret] = hash_filter;
1366         TAILQ_INSERT_TAIL(&fdir_info->fdir_list, hash_filter, rules);
1367
1368         return 0;
1369 }
1370
1371 /* Delete a flow director filter from the SW list */
1372 int
1373 i40e_sw_fdir_filter_del(struct i40e_pf *pf, struct i40e_fdir_input *input)
1374 {
1375         struct i40e_fdir_info *fdir_info = &pf->fdir;
1376         struct i40e_fdir_filter *filter;
1377         int ret;
1378
1379         if (input->flow_ext.pkt_template)
1380                 ret = rte_hash_del_key_with_hash(fdir_info->hash_table,
1381                                                  input,
1382                                                  input->flow.raw_flow.length);
1383         else
1384                 ret = rte_hash_del_key(fdir_info->hash_table, input);
1385         if (ret < 0) {
1386                 PMD_DRV_LOG(ERR,
1387                             "Failed to delete fdir filter to hash table %d!",
1388                             ret);
1389                 return ret;
1390         }
1391         filter = fdir_info->hash_map[ret];
1392         fdir_info->hash_map[ret] = NULL;
1393
1394         TAILQ_REMOVE(&fdir_info->fdir_list, filter, rules);
1395
1396         return 0;
1397 }
1398
1399 struct rte_flow *
1400 i40e_fdir_entry_pool_get(struct i40e_fdir_info *fdir_info)
1401 {
1402         struct rte_flow *flow = NULL;
1403         uint64_t slab = 0;
1404         uint32_t pos = 0;
1405         uint32_t i = 0;
1406         int ret;
1407
1408         if (fdir_info->fdir_actual_cnt >=
1409                         fdir_info->fdir_space_size) {
1410                 PMD_DRV_LOG(ERR, "Fdir space full");
1411                 return NULL;
1412         }
1413
1414         ret = rte_bitmap_scan(fdir_info->fdir_flow_pool.bitmap, &pos,
1415                         &slab);
1416
1417         /* normally this won't happen as the fdir_actual_cnt should be
1418          * same with the number of the set bits in fdir_flow_pool,
1419          * but anyway handle this error condition here for safe
1420          */
1421         if (ret == 0) {
1422                 PMD_DRV_LOG(ERR, "fdir_actual_cnt out of sync");
1423                 return NULL;
1424         }
1425
1426         i = rte_bsf64(slab);
1427         pos += i;
1428         rte_bitmap_clear(fdir_info->fdir_flow_pool.bitmap, pos);
1429         flow = &fdir_info->fdir_flow_pool.pool[pos].flow;
1430
1431         memset(flow, 0, sizeof(struct rte_flow));
1432
1433         return flow;
1434 }
1435
1436 void
1437 i40e_fdir_entry_pool_put(struct i40e_fdir_info *fdir_info,
1438                 struct rte_flow *flow)
1439 {
1440         struct i40e_fdir_entry *f;
1441
1442         f = FLOW_TO_FLOW_BITMAP(flow);
1443         rte_bitmap_set(fdir_info->fdir_flow_pool.bitmap, f->idx);
1444 }
1445
1446 static int
1447 i40e_flow_store_flex_pit(struct i40e_pf *pf,
1448                          struct i40e_fdir_flex_pit *flex_pit,
1449                          enum i40e_flxpld_layer_idx layer_idx,
1450                          uint8_t raw_id)
1451 {
1452         uint8_t field_idx;
1453
1454         field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + raw_id;
1455         /* Check if the configuration is conflicted */
1456         if (pf->fdir.flex_pit_flag[layer_idx] &&
1457             (pf->fdir.flex_set[field_idx].src_offset != flex_pit->src_offset ||
1458              pf->fdir.flex_set[field_idx].size != flex_pit->size ||
1459              pf->fdir.flex_set[field_idx].dst_offset != flex_pit->dst_offset))
1460                 return -1;
1461
1462         /* Check if the configuration exists. */
1463         if (pf->fdir.flex_pit_flag[layer_idx] &&
1464             (pf->fdir.flex_set[field_idx].src_offset == flex_pit->src_offset &&
1465              pf->fdir.flex_set[field_idx].size == flex_pit->size &&
1466              pf->fdir.flex_set[field_idx].dst_offset == flex_pit->dst_offset))
1467                 return 1;
1468
1469         pf->fdir.flex_set[field_idx].src_offset =
1470                 flex_pit->src_offset;
1471         pf->fdir.flex_set[field_idx].size =
1472                 flex_pit->size;
1473         pf->fdir.flex_set[field_idx].dst_offset =
1474                 flex_pit->dst_offset;
1475
1476         return 0;
1477 }
1478
1479 static void
1480 i40e_flow_set_fdir_flex_pit(struct i40e_pf *pf,
1481                             enum i40e_flxpld_layer_idx layer_idx,
1482                             uint8_t raw_id)
1483 {
1484         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
1485         uint32_t flx_pit, flx_ort;
1486         uint16_t min_next_off = 0;
1487         uint8_t field_idx;
1488         uint8_t i;
1489
1490         if (raw_id) {
1491                 flx_ort = (1 << I40E_GLQF_ORT_FLX_PAYLOAD_SHIFT) |
1492                           (raw_id << I40E_GLQF_ORT_FIELD_CNT_SHIFT) |
1493                           (layer_idx * I40E_MAX_FLXPLD_FIED);
1494                 I40E_WRITE_GLB_REG(hw, I40E_GLQF_ORT(33 + layer_idx), flx_ort);
1495         }
1496
1497         /* Set flex pit */
1498         for (i = 0; i < raw_id; i++) {
1499                 field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i;
1500                 flx_pit = MK_FLX_PIT(pf->fdir.flex_set[field_idx].src_offset,
1501                                      pf->fdir.flex_set[field_idx].size,
1502                                      pf->fdir.flex_set[field_idx].dst_offset);
1503
1504                 I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(field_idx), flx_pit);
1505                 min_next_off = pf->fdir.flex_set[field_idx].src_offset +
1506                         pf->fdir.flex_set[field_idx].size;
1507         }
1508
1509         for (; i < I40E_MAX_FLXPLD_FIED; i++) {
1510                 /* set the non-used register obeying register's constrain */
1511                 field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i;
1512                 flx_pit = MK_FLX_PIT(min_next_off, NONUSE_FLX_PIT_FSIZE,
1513                                      NONUSE_FLX_PIT_DEST_OFF);
1514                 I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(field_idx), flx_pit);
1515                 min_next_off++;
1516         }
1517 }
1518
1519 static int
1520 i40e_flow_store_flex_mask(struct i40e_pf *pf,
1521                           enum i40e_filter_pctype pctype,
1522                           uint8_t *mask)
1523 {
1524         struct i40e_fdir_flex_mask flex_mask;
1525         uint8_t nb_bitmask = 0;
1526         uint16_t mask_tmp;
1527         uint8_t i;
1528
1529         memset(&flex_mask, 0, sizeof(struct i40e_fdir_flex_mask));
1530         for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i += sizeof(uint16_t)) {
1531                 mask_tmp = I40E_WORD(mask[i], mask[i + 1]);
1532                 if (mask_tmp) {
1533                         flex_mask.word_mask |=
1534                                 I40E_FLEX_WORD_MASK(i / sizeof(uint16_t));
1535                         if (mask_tmp != UINT16_MAX) {
1536                                 flex_mask.bitmask[nb_bitmask].mask = ~mask_tmp;
1537                                 flex_mask.bitmask[nb_bitmask].offset =
1538                                         i / sizeof(uint16_t);
1539                                 nb_bitmask++;
1540                                 if (nb_bitmask > I40E_FDIR_BITMASK_NUM_WORD)
1541                                         return -1;
1542                         }
1543                 }
1544         }
1545         flex_mask.nb_bitmask = nb_bitmask;
1546
1547         if (pf->fdir.flex_mask_flag[pctype] &&
1548             (memcmp(&flex_mask, &pf->fdir.flex_mask[pctype],
1549                     sizeof(struct i40e_fdir_flex_mask))))
1550                 return -2;
1551         else if (pf->fdir.flex_mask_flag[pctype] &&
1552                  !(memcmp(&flex_mask, &pf->fdir.flex_mask[pctype],
1553                           sizeof(struct i40e_fdir_flex_mask))))
1554                 return 1;
1555
1556         memcpy(&pf->fdir.flex_mask[pctype], &flex_mask,
1557                sizeof(struct i40e_fdir_flex_mask));
1558         return 0;
1559 }
1560
1561 static void
1562 i40e_flow_set_fdir_flex_msk(struct i40e_pf *pf,
1563                             enum i40e_filter_pctype pctype)
1564 {
1565         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
1566         struct i40e_fdir_flex_mask *flex_mask;
1567         uint32_t flxinset, fd_mask;
1568         uint8_t i;
1569
1570         /* Set flex mask */
1571         flex_mask = &pf->fdir.flex_mask[pctype];
1572         flxinset = (flex_mask->word_mask <<
1573                     I40E_PRTQF_FD_FLXINSET_INSET_SHIFT) &
1574                 I40E_PRTQF_FD_FLXINSET_INSET_MASK;
1575         i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), flxinset);
1576
1577         for (i = 0; i < flex_mask->nb_bitmask; i++) {
1578                 fd_mask = (flex_mask->bitmask[i].mask <<
1579                            I40E_PRTQF_FD_MSK_MASK_SHIFT) &
1580                            I40E_PRTQF_FD_MSK_MASK_MASK;
1581                 fd_mask |= ((flex_mask->bitmask[i].offset +
1582                              I40E_FLX_OFFSET_IN_FIELD_VECTOR) <<
1583                             I40E_PRTQF_FD_MSK_OFFSET_SHIFT) &
1584                                 I40E_PRTQF_FD_MSK_OFFSET_MASK;
1585                 i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), fd_mask);
1586         }
1587
1588         pf->fdir.flex_mask_flag[pctype] = 1;
1589 }
1590
1591 static inline unsigned char *
1592 i40e_find_available_buffer(struct rte_eth_dev *dev)
1593 {
1594         struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
1595         struct i40e_fdir_info *fdir_info = &pf->fdir;
1596         struct i40e_tx_queue *txq = pf->fdir.txq;
1597
1598         /* no available buffer
1599          * search for more available buffers from the current
1600          * descriptor, until an unavailable one
1601          */
1602         if (fdir_info->txq_available_buf_count <= 0) {
1603                 uint16_t tmp_tail;
1604                 volatile struct i40e_tx_desc *tmp_txdp;
1605
1606                 tmp_tail = txq->tx_tail;
1607                 tmp_txdp = &txq->tx_ring[tmp_tail + 1];
1608
1609                 do {
1610                         if ((tmp_txdp->cmd_type_offset_bsz &
1611                                         rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) ==
1612                                         rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
1613                                 fdir_info->txq_available_buf_count++;
1614                         else
1615                                 break;
1616
1617                         tmp_tail += 2;
1618                         if (tmp_tail >= txq->nb_tx_desc)
1619                                 tmp_tail = 0;
1620                 } while (tmp_tail != txq->tx_tail);
1621         }
1622
1623         if (fdir_info->txq_available_buf_count > 0)
1624                 fdir_info->txq_available_buf_count--;
1625         else
1626                 return NULL;
1627         return (unsigned char *)fdir_info->prg_pkt[txq->tx_tail >> 1];
1628 }
1629
1630 /**
1631  * i40e_flow_add_del_fdir_filter - add or remove a flow director filter.
1632  * @pf: board private structure
1633  * @filter: fdir filter entry
1634  * @add: 0 - delete, 1 - add
1635  */
1636 int
1637 i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
1638                               const struct i40e_fdir_filter_conf *filter,
1639                               bool add)
1640 {
1641         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1642         struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
1643         enum i40e_flxpld_layer_idx layer_idx = I40E_FLXPLD_L2_IDX;
1644         struct i40e_fdir_info *fdir_info = &pf->fdir;
1645         uint8_t flex_mask[I40E_FDIR_MAX_FLEX_LEN];
1646         struct i40e_fdir_filter check_filter; /* Check if the filter exists */
1647         struct i40e_fdir_flex_pit flex_pit;
1648         enum i40e_filter_pctype pctype;
1649         struct i40e_fdir_filter *node;
1650         unsigned char *pkt = NULL;
1651         bool cfg_flex_pit = true;
1652         bool wait_status = true;
1653         uint8_t field_idx;
1654         int ret = 0;
1655         int i;
1656
1657         if (pf->fdir.fdir_vsi == NULL) {
1658                 PMD_DRV_LOG(ERR, "FDIR is not enabled");
1659                 return -ENOTSUP;
1660         }
1661
1662         if (filter->action.rx_queue >= pf->dev_data->nb_rx_queues) {
1663                 PMD_DRV_LOG(ERR, "Invalid queue ID");
1664                 return -EINVAL;
1665         }
1666         if (filter->input.flow_ext.is_vf &&
1667             filter->input.flow_ext.dst_id >= pf->vf_num) {
1668                 PMD_DRV_LOG(ERR, "Invalid VF ID");
1669                 return -EINVAL;
1670         }
1671         if (filter->input.flow_ext.pkt_template) {
1672                 if (filter->input.flow.raw_flow.length > I40E_FDIR_PKT_LEN ||
1673                     !filter->input.flow.raw_flow.packet) {
1674                         PMD_DRV_LOG(ERR, "Invalid raw packet template"
1675                                 " flow filter parameters!");
1676                         return -EINVAL;
1677                 }
1678                 pctype = filter->input.flow.raw_flow.pctype;
1679         } else {
1680                 pctype = filter->input.pctype;
1681         }
1682
1683         /* Check if there is the filter in SW list */
1684         memset(&check_filter, 0, sizeof(check_filter));
1685         i40e_fdir_filter_convert(filter, &check_filter);
1686
1687         if (add) {
1688                 if (filter->input.flow_ext.is_flex_flow) {
1689                         for (i = 0; i < filter->input.flow_ext.raw_id; i++) {
1690                                 layer_idx = filter->input.flow_ext.layer_idx;
1691                                 field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i;
1692                                 flex_pit = filter->input.flow_ext.flex_pit[field_idx];
1693
1694                                 /* Store flex pit to SW */
1695                                 ret = i40e_flow_store_flex_pit(pf, &flex_pit,
1696                                                                layer_idx, i);
1697                                 if (ret < 0) {
1698                                         PMD_DRV_LOG(ERR, "Conflict with the"
1699                                                     " first flexible rule.");
1700                                         return -EINVAL;
1701                                 } else if (ret > 0) {
1702                                         cfg_flex_pit = false;
1703                                 }
1704                         }
1705
1706                         if (cfg_flex_pit)
1707                                 i40e_flow_set_fdir_flex_pit(pf, layer_idx,
1708                                                 filter->input.flow_ext.raw_id);
1709
1710                         /* Store flex mask to SW */
1711                         for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i++)
1712                                 flex_mask[i] =
1713                                         filter->input.flow_ext.flex_mask[i];
1714
1715                         ret = i40e_flow_store_flex_mask(pf, pctype, flex_mask);
1716                         if (ret == -1) {
1717                                 PMD_DRV_LOG(ERR, "Exceed maximal"
1718                                             " number of bitmasks");
1719                                 return -EINVAL;
1720                         } else if (ret == -2) {
1721                                 PMD_DRV_LOG(ERR, "Conflict with the"
1722                                             " first flexible rule");
1723                                 return -EINVAL;
1724                         } else if (ret == 0) {
1725                                 i40e_flow_set_fdir_flex_msk(pf, pctype);
1726                         }
1727                 }
1728
1729                 ret = i40e_sw_fdir_filter_insert(pf, &check_filter);
1730                 if (ret < 0) {
1731                         PMD_DRV_LOG(ERR,
1732                                     "Conflict with existing flow director rules!");
1733                         return -EINVAL;
1734                 }
1735
1736                 if (fdir_info->fdir_invalprio == 1 &&
1737                                 fdir_info->fdir_guarantee_free_space > 0)
1738                         wait_status = false;
1739         } else {
1740                 if (filter->input.flow_ext.is_flex_flow)
1741                         layer_idx = filter->input.flow_ext.layer_idx;
1742
1743                 node = i40e_sw_fdir_filter_lookup(fdir_info,
1744                                 &check_filter.fdir.input);
1745                 if (!node) {
1746                         PMD_DRV_LOG(ERR,
1747                                     "There's no corresponding flow firector filter!");
1748                         return -EINVAL;
1749                 }
1750
1751                 ret = i40e_sw_fdir_filter_del(pf, &node->fdir.input);
1752                 if (ret < 0) {
1753                         PMD_DRV_LOG(ERR,
1754                                         "Error deleting fdir rule from hash table!");
1755                         return -EINVAL;
1756                 }
1757
1758                 pf->fdir.flex_mask_flag[pctype] = 0;
1759
1760                 if (fdir_info->fdir_invalprio == 1)
1761                         wait_status = false;
1762         }
1763
1764         /* find a buffer to store the pkt */
1765         pkt = i40e_find_available_buffer(dev);
1766         if (pkt == NULL)
1767                 goto error_op;
1768
1769         memset(pkt, 0, I40E_FDIR_PKT_LEN);
1770         ret = i40e_flow_fdir_construct_pkt(pf, &filter->input, pkt);
1771         if (ret < 0) {
1772                 PMD_DRV_LOG(ERR, "construct packet for fdir fails.");
1773                 goto error_op;
1774         }
1775
1776         if (hw->mac.type == I40E_MAC_X722) {
1777                 /* get translated pctype value in fd pctype register */
1778                 pctype = (enum i40e_filter_pctype)i40e_read_rx_ctl(
1779                         hw, I40E_GLQF_FD_PCTYPES((int)pctype));
1780         }
1781
1782         ret = i40e_flow_fdir_filter_programming(pf, pctype, filter, add,
1783                         wait_status);
1784         if (ret < 0) {
1785                 PMD_DRV_LOG(ERR, "fdir programming fails for PCTYPE(%u).",
1786                             pctype);
1787                 goto error_op;
1788         }
1789
1790         if (filter->input.flow_ext.is_flex_flow) {
1791                 if (add) {
1792                         fdir_info->flex_flow_count[layer_idx]++;
1793                         pf->fdir.flex_pit_flag[layer_idx] = 1;
1794                 } else {
1795                         fdir_info->flex_flow_count[layer_idx]--;
1796                         if (!fdir_info->flex_flow_count[layer_idx])
1797                                 pf->fdir.flex_pit_flag[layer_idx] = 0;
1798                 }
1799         }
1800
1801         if (add) {
1802                 fdir_info->fdir_actual_cnt++;
1803                 if (fdir_info->fdir_invalprio == 1 &&
1804                                 fdir_info->fdir_guarantee_free_space > 0)
1805                         fdir_info->fdir_guarantee_free_space--;
1806         } else {
1807                 fdir_info->fdir_actual_cnt--;
1808                 if (fdir_info->fdir_invalprio == 1 &&
1809                                 fdir_info->fdir_guarantee_free_space <
1810                                 fdir_info->fdir_guarantee_total_space)
1811                         fdir_info->fdir_guarantee_free_space++;
1812         }
1813
1814         return ret;
1815
1816 error_op:
1817         /* roll back */
1818         if (add)
1819                 i40e_sw_fdir_filter_del(pf, &check_filter.fdir.input);
1820         else
1821                 i40e_sw_fdir_filter_insert(pf, &check_filter);
1822
1823         return ret;
1824 }
1825
1826 /*
1827  * i40e_flow_fdir_filter_programming - Program a flow director filter rule.
1828  * Is done by Flow Director Programming Descriptor followed by packet
1829  * structure that contains the filter fields need to match.
1830  * @pf: board private structure
1831  * @pctype: pctype
1832  * @filter: fdir filter entry
1833  * @add: 0 - delete, 1 - add
1834  */
1835 static int
1836 i40e_flow_fdir_filter_programming(struct i40e_pf *pf,
1837                                   enum i40e_filter_pctype pctype,
1838                                   const struct i40e_fdir_filter_conf *filter,
1839                                   bool add, bool wait_status)
1840 {
1841         struct i40e_tx_queue *txq = pf->fdir.txq;
1842         struct i40e_rx_queue *rxq = pf->fdir.rxq;
1843         const struct i40e_fdir_action *fdir_action = &filter->action;
1844         volatile struct i40e_tx_desc *txdp;
1845         volatile struct i40e_filter_program_desc *fdirdp;
1846         uint32_t td_cmd;
1847         uint16_t vsi_id;
1848         uint8_t dest;
1849         uint32_t i;
1850
1851         PMD_DRV_LOG(INFO, "filling filter programming descriptor.");
1852         fdirdp = (volatile struct i40e_filter_program_desc *)
1853                                 (&txq->tx_ring[txq->tx_tail]);
1854
1855         fdirdp->qindex_flex_ptype_vsi =
1856                         rte_cpu_to_le_32((fdir_action->rx_queue <<
1857                                           I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
1858                                           I40E_TXD_FLTR_QW0_QINDEX_MASK);
1859
1860         fdirdp->qindex_flex_ptype_vsi |=
1861                         rte_cpu_to_le_32((fdir_action->flex_off <<
1862                                           I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
1863                                           I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
1864
1865         fdirdp->qindex_flex_ptype_vsi |=
1866                         rte_cpu_to_le_32((pctype <<
1867                                           I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
1868                                           I40E_TXD_FLTR_QW0_PCTYPE_MASK);
1869
1870         if (filter->input.flow_ext.is_vf)
1871                 vsi_id = pf->vfs[filter->input.flow_ext.dst_id].vsi->vsi_id;
1872         else
1873                 /* Use LAN VSI Id by default */
1874                 vsi_id = pf->main_vsi->vsi_id;
1875         fdirdp->qindex_flex_ptype_vsi |=
1876                 rte_cpu_to_le_32(((uint32_t)vsi_id <<
1877                                   I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
1878                                   I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
1879
1880         fdirdp->dtype_cmd_cntindex =
1881                         rte_cpu_to_le_32(I40E_TX_DESC_DTYPE_FILTER_PROG);
1882
1883         if (add)
1884                 fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
1885                                 I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE <<
1886                                 I40E_TXD_FLTR_QW1_PCMD_SHIFT);
1887         else
1888                 fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
1889                                 I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE <<
1890                                 I40E_TXD_FLTR_QW1_PCMD_SHIFT);
1891
1892         if (fdir_action->behavior == I40E_FDIR_REJECT)
1893                 dest = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
1894         else if (fdir_action->behavior == I40E_FDIR_ACCEPT)
1895                 dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
1896         else if (fdir_action->behavior == I40E_FDIR_PASSTHRU)
1897                 dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_OTHER;
1898         else {
1899                 PMD_DRV_LOG(ERR, "Failed to program FDIR filter: unsupported fdir behavior.");
1900                 return -EINVAL;
1901         }
1902
1903         fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32((dest <<
1904                                 I40E_TXD_FLTR_QW1_DEST_SHIFT) &
1905                                 I40E_TXD_FLTR_QW1_DEST_MASK);
1906
1907         fdirdp->dtype_cmd_cntindex |=
1908                 rte_cpu_to_le_32((fdir_action->report_status <<
1909                                 I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) &
1910                                 I40E_TXD_FLTR_QW1_FD_STATUS_MASK);
1911
1912         fdirdp->dtype_cmd_cntindex |=
1913                         rte_cpu_to_le_32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
1914         fdirdp->dtype_cmd_cntindex |=
1915                         rte_cpu_to_le_32(
1916                         ((uint32_t)pf->fdir.match_counter_index <<
1917                         I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
1918                         I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
1919
1920         fdirdp->fd_id = rte_cpu_to_le_32(filter->soft_id);
1921
1922         PMD_DRV_LOG(INFO, "filling transmit descriptor.");
1923         txdp = &txq->tx_ring[txq->tx_tail + 1];
1924         txdp->buffer_addr = rte_cpu_to_le_64(pf->fdir.dma_addr[txq->tx_tail >> 1]);
1925
1926         td_cmd = I40E_TX_DESC_CMD_EOP |
1927                  I40E_TX_DESC_CMD_RS  |
1928                  I40E_TX_DESC_CMD_DUMMY;
1929
1930         txdp->cmd_type_offset_bsz =
1931                 i40e_build_ctob(td_cmd, 0, I40E_FDIR_PKT_LEN, 0);
1932
1933         txq->tx_tail += 2; /* set 2 descriptors above, fdirdp and txdp */
1934         if (txq->tx_tail >= txq->nb_tx_desc)
1935                 txq->tx_tail = 0;
1936         /* Update the tx tail register */
1937         rte_wmb();
1938
1939         /* fdir program rx queue cleanup */
1940         i40e_fdir_programming_status_cleanup(rxq);
1941
1942         I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
1943
1944         if (wait_status) {
1945                 for (i = 0; i < I40E_FDIR_MAX_WAIT_US; i++) {
1946                         if ((txdp->cmd_type_offset_bsz &
1947                                         rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) ==
1948                                         rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
1949                                 break;
1950                         rte_delay_us(1);
1951                 }
1952                 if (i >= I40E_FDIR_MAX_WAIT_US) {
1953                         PMD_DRV_LOG(ERR,
1954                             "Failed to program FDIR filter: time out to get DD on tx queue.");
1955                         return -ETIMEDOUT;
1956                 }
1957                 /* totally delay 10 ms to check programming status*/
1958                 rte_delay_us(I40E_FDIR_MAX_WAIT_US);
1959                 if (i40e_check_fdir_programming_status(rxq) < 0) {
1960                         PMD_DRV_LOG(ERR,
1961                             "Failed to program FDIR filter: programming status reported.");
1962                         return -ETIMEDOUT;
1963                 }
1964         }
1965
1966         return 0;
1967 }
1968
1969 /*
1970  * i40e_fdir_flush - clear all filters of Flow Director table
1971  * @pf: board private structure
1972  */
1973 int
1974 i40e_fdir_flush(struct rte_eth_dev *dev)
1975 {
1976         struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
1977         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
1978         uint32_t reg;
1979         uint16_t guarant_cnt, best_cnt;
1980         uint16_t i;
1981
1982         I40E_WRITE_REG(hw, I40E_PFQF_CTL_1, I40E_PFQF_CTL_1_CLEARFDTABLE_MASK);
1983         I40E_WRITE_FLUSH(hw);
1984
1985         for (i = 0; i < I40E_FDIR_FLUSH_RETRY; i++) {
1986                 rte_delay_ms(I40E_FDIR_FLUSH_INTERVAL_MS);
1987                 reg = I40E_READ_REG(hw, I40E_PFQF_CTL_1);
1988                 if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK))
1989                         break;
1990         }
1991         if (i >= I40E_FDIR_FLUSH_RETRY) {
1992                 PMD_DRV_LOG(ERR, "FD table did not flush, may need more time.");
1993                 return -ETIMEDOUT;
1994         }
1995         guarant_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
1996                                 I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
1997                                 I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
1998         best_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
1999                                 I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
2000                                 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
2001         if (guarant_cnt != 0 || best_cnt != 0) {
2002                 PMD_DRV_LOG(ERR, "Failed to flush FD table.");
2003                 return -ENOSYS;
2004         } else
2005                 PMD_DRV_LOG(INFO, "FD table Flush success.");
2006         return 0;
2007 }
2008
2009 static inline void
2010 i40e_fdir_info_get_flex_set(struct i40e_pf *pf,
2011                         struct rte_eth_flex_payload_cfg *flex_set,
2012                         uint16_t *num)
2013 {
2014         struct i40e_fdir_flex_pit *flex_pit;
2015         struct rte_eth_flex_payload_cfg *ptr = flex_set;
2016         uint16_t src, dst, size, j, k;
2017         uint8_t i, layer_idx;
2018
2019         for (layer_idx = I40E_FLXPLD_L2_IDX;
2020              layer_idx <= I40E_FLXPLD_L4_IDX;
2021              layer_idx++) {
2022                 if (layer_idx == I40E_FLXPLD_L2_IDX)
2023                         ptr->type = RTE_ETH_L2_PAYLOAD;
2024                 else if (layer_idx == I40E_FLXPLD_L3_IDX)
2025                         ptr->type = RTE_ETH_L3_PAYLOAD;
2026                 else if (layer_idx == I40E_FLXPLD_L4_IDX)
2027                         ptr->type = RTE_ETH_L4_PAYLOAD;
2028
2029                 for (i = 0; i < I40E_MAX_FLXPLD_FIED; i++) {
2030                         flex_pit = &pf->fdir.flex_set[layer_idx *
2031                                 I40E_MAX_FLXPLD_FIED + i];
2032                         if (flex_pit->size == 0)
2033                                 continue;
2034                         src = flex_pit->src_offset * sizeof(uint16_t);
2035                         dst = flex_pit->dst_offset * sizeof(uint16_t);
2036                         size = flex_pit->size * sizeof(uint16_t);
2037                         for (j = src, k = dst; j < src + size; j++, k++)
2038                                 ptr->src_offset[k] = j;
2039                 }
2040                 (*num)++;
2041                 ptr++;
2042         }
2043 }
2044
2045 static inline void
2046 i40e_fdir_info_get_flex_mask(struct i40e_pf *pf,
2047                         struct rte_eth_fdir_flex_mask *flex_mask,
2048                         uint16_t *num)
2049 {
2050         struct i40e_fdir_flex_mask *mask;
2051         struct rte_eth_fdir_flex_mask *ptr = flex_mask;
2052         uint16_t flow_type;
2053         uint8_t i, j;
2054         uint16_t off_bytes, mask_tmp;
2055
2056         for (i = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2057              i <= I40E_FILTER_PCTYPE_L2_PAYLOAD;
2058              i++) {
2059                 mask =  &pf->fdir.flex_mask[i];
2060                 flow_type = i40e_pctype_to_flowtype(pf->adapter,
2061                                                     (enum i40e_filter_pctype)i);
2062                 if (flow_type == RTE_ETH_FLOW_UNKNOWN)
2063                         continue;
2064
2065                 for (j = 0; j < I40E_FDIR_MAX_FLEXWORD_NUM; j++) {
2066                         if (mask->word_mask & I40E_FLEX_WORD_MASK(j)) {
2067                                 ptr->mask[j * sizeof(uint16_t)] = UINT8_MAX;
2068                                 ptr->mask[j * sizeof(uint16_t) + 1] = UINT8_MAX;
2069                         } else {
2070                                 ptr->mask[j * sizeof(uint16_t)] = 0x0;
2071                                 ptr->mask[j * sizeof(uint16_t) + 1] = 0x0;
2072                         }
2073                 }
2074                 for (j = 0; j < I40E_FDIR_BITMASK_NUM_WORD; j++) {
2075                         off_bytes = mask->bitmask[j].offset * sizeof(uint16_t);
2076                         mask_tmp = ~mask->bitmask[j].mask;
2077                         ptr->mask[off_bytes] &= I40E_HI_BYTE(mask_tmp);
2078                         ptr->mask[off_bytes + 1] &= I40E_LO_BYTE(mask_tmp);
2079                 }
2080                 ptr->flow_type = flow_type;
2081                 ptr++;
2082                 (*num)++;
2083         }
2084 }
2085
2086 /*
2087  * i40e_fdir_info_get - get information of Flow Director
2088  * @pf: ethernet device to get info from
2089  * @fdir: a pointer to a structure of type *rte_eth_fdir_info* to be filled with
2090  *    the flow director information.
2091  */
2092 void
2093 i40e_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir)
2094 {
2095         struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
2096         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
2097         uint16_t num_flex_set = 0;
2098         uint16_t num_flex_mask = 0;
2099         uint16_t i;
2100
2101         if (dev->data->dev_conf.fdir_conf.mode == RTE_FDIR_MODE_PERFECT)
2102                 fdir->mode = RTE_FDIR_MODE_PERFECT;
2103         else
2104                 fdir->mode = RTE_FDIR_MODE_NONE;
2105
2106         fdir->guarant_spc =
2107                 (uint32_t)hw->func_caps.fd_filters_guaranteed;
2108         fdir->best_spc =
2109                 (uint32_t)hw->func_caps.fd_filters_best_effort;
2110         fdir->max_flexpayload = I40E_FDIR_MAX_FLEX_LEN;
2111         fdir->flow_types_mask[0] = I40E_FDIR_FLOWS;
2112         for (i = 1; i < RTE_FLOW_MASK_ARRAY_SIZE; i++)
2113                 fdir->flow_types_mask[i] = 0ULL;
2114         fdir->flex_payload_unit = sizeof(uint16_t);
2115         fdir->flex_bitmask_unit = sizeof(uint16_t);
2116         fdir->max_flex_payload_segment_num = I40E_MAX_FLXPLD_FIED;
2117         fdir->flex_payload_limit = I40E_MAX_FLX_SOURCE_OFF;
2118         fdir->max_flex_bitmask_num = I40E_FDIR_BITMASK_NUM_WORD;
2119
2120         i40e_fdir_info_get_flex_set(pf,
2121                                 fdir->flex_conf.flex_set,
2122                                 &num_flex_set);
2123         i40e_fdir_info_get_flex_mask(pf,
2124                                 fdir->flex_conf.flex_mask,
2125                                 &num_flex_mask);
2126
2127         fdir->flex_conf.nb_payloads = num_flex_set;
2128         fdir->flex_conf.nb_flexmasks = num_flex_mask;
2129 }
2130
2131 /*
2132  * i40e_fdir_stat_get - get statistics of Flow Director
2133  * @pf: ethernet device to get info from
2134  * @stat: a pointer to a structure of type *rte_eth_fdir_stats* to be filled with
2135  *    the flow director statistics.
2136  */
2137 void
2138 i40e_fdir_stats_get(struct rte_eth_dev *dev, struct rte_eth_fdir_stats *stat)
2139 {
2140         struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
2141         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
2142         uint32_t fdstat;
2143
2144         fdstat = I40E_READ_REG(hw, I40E_PFQF_FDSTAT);
2145         stat->guarant_cnt =
2146                 (uint32_t)((fdstat & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
2147                             I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
2148         stat->best_cnt =
2149                 (uint32_t)((fdstat & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
2150                             I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
2151 }
2152
2153 /* Restore flow director filter */
2154 void
2155 i40e_fdir_filter_restore(struct i40e_pf *pf)
2156 {
2157         struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(pf->main_vsi);
2158         struct i40e_fdir_filter_list *fdir_list = &pf->fdir.fdir_list;
2159         struct i40e_fdir_filter *f;
2160         struct i40e_hw *hw = I40E_PF_TO_HW(pf);
2161         uint32_t fdstat;
2162         uint32_t guarant_cnt;  /**< Number of filters in guaranteed spaces. */
2163         uint32_t best_cnt;     /**< Number of filters in best effort spaces. */
2164
2165         TAILQ_FOREACH(f, fdir_list, rules)
2166                 i40e_flow_add_del_fdir_filter(dev, &f->fdir, TRUE);
2167
2168         fdstat = I40E_READ_REG(hw, I40E_PFQF_FDSTAT);
2169         guarant_cnt =
2170                 (uint32_t)((fdstat & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
2171                            I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
2172         best_cnt =
2173                 (uint32_t)((fdstat & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
2174                            I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
2175
2176         PMD_DRV_LOG(INFO, "FDIR: Guarant count: %d,  Best count: %d",
2177                     guarant_cnt, best_cnt);
2178 }