drivers/net/ice/ice_rxtx.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #include <rte_ethdev_driver.h>
   6 #include <rte_net.h>
   7
   8 #include "rte_pmd_ice.h"
   9 #include "ice_rxtx.h"
  10
  11 #define ICE_TX_CKSUM_OFFLOAD_MASK (              \
  12                 PKT_TX_IP_CKSUM |                \
  13                 PKT_TX_L4_MASK |                 \
  14                 PKT_TX_TCP_SEG |                 \
  15                 PKT_TX_OUTER_IP_CKSUM)
  16
  17 /* Offset of mbuf dynamic field for protocol extraction data */
  18 int rte_net_ice_dynfield_proto_xtr_metadata_offs = -1;
  19
  20 /* Mask of mbuf dynamic flags for protocol extraction type */
  21 uint64_t rte_net_ice_dynflag_proto_xtr_vlan_mask;
  22 uint64_t rte_net_ice_dynflag_proto_xtr_ipv4_mask;
  23 uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_mask;
  24 uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask;
  25 uint64_t rte_net_ice_dynflag_proto_xtr_tcp_mask;
  26
  27 static inline uint64_t
  28 ice_rxdid_to_proto_xtr_ol_flag(uint8_t rxdid)
  29 {
  30         static uint64_t *ol_flag_map[] = {
  31                 [ICE_RXDID_COMMS_AUX_VLAN] =
  32                                 &rte_net_ice_dynflag_proto_xtr_vlan_mask,
  33                 [ICE_RXDID_COMMS_AUX_IPV4] =
  34                                 &rte_net_ice_dynflag_proto_xtr_ipv4_mask,
  35                 [ICE_RXDID_COMMS_AUX_IPV6] =
  36                                 &rte_net_ice_dynflag_proto_xtr_ipv6_mask,
  37                 [ICE_RXDID_COMMS_AUX_IPV6_FLOW] =
  38                                 &rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask,
  39                 [ICE_RXDID_COMMS_AUX_TCP] =
  40                                 &rte_net_ice_dynflag_proto_xtr_tcp_mask,
  41         };
  42         uint64_t *ol_flag;
  43
  44         ol_flag = rxdid < RTE_DIM(ol_flag_map) ? ol_flag_map[rxdid] : NULL;
  45
  46         return ol_flag != NULL ? *ol_flag : 0ULL;
  47 }
  48
  49 static inline uint8_t
  50 ice_proto_xtr_type_to_rxdid(uint8_t xtr_type)
  51 {
  52         static uint8_t rxdid_map[] = {
  53                 [PROTO_XTR_NONE]      = ICE_RXDID_COMMS_GENERIC,
  54                 [PROTO_XTR_VLAN]      = ICE_RXDID_COMMS_AUX_VLAN,
  55                 [PROTO_XTR_IPV4]      = ICE_RXDID_COMMS_AUX_IPV4,
  56                 [PROTO_XTR_IPV6]      = ICE_RXDID_COMMS_AUX_IPV6,
  57                 [PROTO_XTR_IPV6_FLOW] = ICE_RXDID_COMMS_AUX_IPV6_FLOW,
  58                 [PROTO_XTR_TCP]       = ICE_RXDID_COMMS_AUX_TCP,
  59         };
  60
  61         return xtr_type < RTE_DIM(rxdid_map) ?
  62                                 rxdid_map[xtr_type] : ICE_RXDID_COMMS_GENERIC;
  63 }
  64
  65 static enum ice_status
  66 ice_program_hw_rx_queue(struct ice_rx_queue *rxq)
  67 {
  68         struct ice_vsi *vsi = rxq->vsi;
  69         struct ice_hw *hw = ICE_VSI_TO_HW(vsi);
  70         struct rte_eth_dev *dev = ICE_VSI_TO_ETH_DEV(rxq->vsi);
  71         struct ice_rlan_ctx rx_ctx;
  72         enum ice_status err;
  73         uint16_t buf_size, len;
  74         struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
  75         uint32_t rxdid = ICE_RXDID_COMMS_GENERIC;
  76         uint32_t regval;
  77
  78         /* Set buffer size as the head split is disabled. */
  79         buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) -
  80                               RTE_PKTMBUF_HEADROOM);
  81         rxq->rx_hdr_len = 0;
  82         rxq->rx_buf_len = RTE_ALIGN(buf_size, (1 << ICE_RLAN_CTX_DBUF_S));
  83         len = ICE_SUPPORT_CHAIN_NUM * rxq->rx_buf_len;
  84         rxq->max_pkt_len = RTE_MIN(len,
  85                                    dev->data->dev_conf.rxmode.max_rx_pkt_len);
  86
  87         if (rxmode->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
  88                 if (rxq->max_pkt_len <= RTE_ETHER_MAX_LEN ||
  89                     rxq->max_pkt_len > ICE_FRAME_SIZE_MAX) {
  90                         PMD_DRV_LOG(ERR, "maximum packet length must "
  91                                     "be larger than %u and smaller than %u,"
  92                                     "as jumbo frame is enabled",
  93                                     (uint32_t)RTE_ETHER_MAX_LEN,
  94                                     (uint32_t)ICE_FRAME_SIZE_MAX);
  95                         return -EINVAL;
  96                 }
  97         } else {
  98                 if (rxq->max_pkt_len < RTE_ETHER_MIN_LEN ||
  99                     rxq->max_pkt_len > RTE_ETHER_MAX_LEN) {
 100                         PMD_DRV_LOG(ERR, "maximum packet length must be "
 101                                     "larger than %u and smaller than %u, "
 102                                     "as jumbo frame is disabled",
 103                                     (uint32_t)RTE_ETHER_MIN_LEN,
 104                                     (uint32_t)RTE_ETHER_MAX_LEN);
 105                         return -EINVAL;
 106                 }
 107         }
 108
 109         memset(&rx_ctx, 0, sizeof(rx_ctx));
 110
 111         rx_ctx.base = rxq->rx_ring_dma / ICE_QUEUE_BASE_ADDR_UNIT;
 112         rx_ctx.qlen = rxq->nb_rx_desc;
 113         rx_ctx.dbuf = rxq->rx_buf_len >> ICE_RLAN_CTX_DBUF_S;
 114         rx_ctx.hbuf = rxq->rx_hdr_len >> ICE_RLAN_CTX_HBUF_S;
 115         rx_ctx.dtype = 0; /* No Header Split mode */
 116 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
 117         rx_ctx.dsize = 1; /* 32B descriptors */
 118 #endif
 119         rx_ctx.rxmax = rxq->max_pkt_len;
 120         /* TPH: Transaction Layer Packet (TLP) processing hints */
 121         rx_ctx.tphrdesc_ena = 1;
 122         rx_ctx.tphwdesc_ena = 1;
 123         rx_ctx.tphdata_ena = 1;
 124         rx_ctx.tphhead_ena = 1;
 125         /* Low Receive Queue Threshold defined in 64 descriptors units.
 126          * When the number of free descriptors goes below the lrxqthresh,
 127          * an immediate interrupt is triggered.
 128          */
 129         rx_ctx.lrxqthresh = 2;
 130         /*default use 32 byte descriptor, vlan tag extract to L2TAG2(1st)*/
 131         rx_ctx.l2tsel = 1;
 132         rx_ctx.showiv = 0;
 133         rx_ctx.crcstrip = (rxq->crc_len == 0) ? 1 : 0;
 134
 135         rxdid = ice_proto_xtr_type_to_rxdid(rxq->proto_xtr);
 136
 137         PMD_DRV_LOG(DEBUG, "Port (%u) - Rx queue (%u) is set with RXDID : %u",
 138                     rxq->port_id, rxq->queue_id, rxdid);
 139
 140         /* Enable Flexible Descriptors in the queue context which
 141          * allows this driver to select a specific receive descriptor format
 142          */
 143         regval = (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) &
 144                 QRXFLXP_CNTXT_RXDID_IDX_M;
 145
 146         /* increasing context priority to pick up profile ID;
 147          * default is 0x01; setting to 0x03 to ensure profile
 148          * is programming if prev context is of same priority
 149          */
 150         regval |= (0x03 << QRXFLXP_CNTXT_RXDID_PRIO_S) &
 151                 QRXFLXP_CNTXT_RXDID_PRIO_M;
 152
 153         ICE_WRITE_REG(hw, QRXFLXP_CNTXT(rxq->reg_idx), regval);
 154
 155         err = ice_clear_rxq_ctx(hw, rxq->reg_idx);
 156         if (err) {
 157                 PMD_DRV_LOG(ERR, "Failed to clear Lan Rx queue (%u) context",
 158                             rxq->queue_id);
 159                 return -EINVAL;
 160         }
 161         err = ice_write_rxq_ctx(hw, &rx_ctx, rxq->reg_idx);
 162         if (err) {
 163                 PMD_DRV_LOG(ERR, "Failed to write Lan Rx queue (%u) context",
 164                             rxq->queue_id);
 165                 return -EINVAL;
 166         }
 167
 168         buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) -
 169                               RTE_PKTMBUF_HEADROOM);
 170
 171         /* Check if scattered RX needs to be used. */
 172         if (rxq->max_pkt_len > buf_size)
 173                 dev->data->scattered_rx = 1;
 174
 175         rxq->qrx_tail = hw->hw_addr + QRX_TAIL(rxq->reg_idx);
 176
 177         /* Init the Rx tail register*/
 178         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 179
 180         return 0;
 181 }
 182
 183 /* Allocate mbufs for all descriptors in rx queue */
 184 static int
 185 ice_alloc_rx_queue_mbufs(struct ice_rx_queue *rxq)
 186 {
 187         struct ice_rx_entry *rxe = rxq->sw_ring;
 188         uint64_t dma_addr;
 189         uint16_t i;
 190
 191         for (i = 0; i < rxq->nb_rx_desc; i++) {
 192                 volatile union ice_rx_flex_desc *rxd;
 193                 struct rte_mbuf *mbuf = rte_mbuf_raw_alloc(rxq->mp);
 194
 195                 if (unlikely(!mbuf)) {
 196                         PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
 197                         return -ENOMEM;
 198                 }
 199
 200                 rte_mbuf_refcnt_set(mbuf, 1);
 201                 mbuf->next = NULL;
 202                 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 203                 mbuf->nb_segs = 1;
 204                 mbuf->port = rxq->port_id;
 205
 206                 dma_addr =
 207                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
 208
 209                 rxd = &rxq->rx_ring[i];
 210                 rxd->read.pkt_addr = dma_addr;
 211                 rxd->read.hdr_addr = 0;
 212 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
 213                 rxd->read.rsvd1 = 0;
 214                 rxd->read.rsvd2 = 0;
 215 #endif
 216                 rxe[i].mbuf = mbuf;
 217         }
 218
 219         return 0;
 220 }
 221
 222 /* Free all mbufs for descriptors in rx queue */
 223 static void
 224 _ice_rx_queue_release_mbufs(struct ice_rx_queue *rxq)
 225 {
 226         uint16_t i;
 227
 228         if (!rxq || !rxq->sw_ring) {
 229                 PMD_DRV_LOG(DEBUG, "Pointer to sw_ring is NULL");
 230                 return;
 231         }
 232
 233         for (i = 0; i < rxq->nb_rx_desc; i++) {
 234                 if (rxq->sw_ring[i].mbuf) {
 235                         rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
 236                         rxq->sw_ring[i].mbuf = NULL;
 237                 }
 238         }
 239         if (rxq->rx_nb_avail == 0)
 240                 return;
 241         for (i = 0; i < rxq->rx_nb_avail; i++)
 242                 rte_pktmbuf_free_seg(rxq->rx_stage[rxq->rx_next_avail + i]);
 243
 244         rxq->rx_nb_avail = 0;
 245 }
 246
 247 /* turn on or off rx queue
 248  * @q_idx: queue index in pf scope
 249  * @on: turn on or off the queue
 250  */
 251 static int
 252 ice_switch_rx_queue(struct ice_hw *hw, uint16_t q_idx, bool on)
 253 {
 254         uint32_t reg;
 255         uint16_t j;
 256
 257         /* QRX_CTRL = QRX_ENA */
 258         reg = ICE_READ_REG(hw, QRX_CTRL(q_idx));
 259
 260         if (on) {
 261                 if (reg & QRX_CTRL_QENA_STAT_M)
 262                         return 0; /* Already on, skip */
 263                 reg |= QRX_CTRL_QENA_REQ_M;
 264         } else {
 265                 if (!(reg & QRX_CTRL_QENA_STAT_M))
 266                         return 0; /* Already off, skip */
 267                 reg &= ~QRX_CTRL_QENA_REQ_M;
 268         }
 269
 270         /* Write the register */
 271         ICE_WRITE_REG(hw, QRX_CTRL(q_idx), reg);
 272         /* Check the result. It is said that QENA_STAT
 273          * follows the QENA_REQ not more than 10 use.
 274          * TODO: need to change the wait counter later
 275          */
 276         for (j = 0; j < ICE_CHK_Q_ENA_COUNT; j++) {
 277                 rte_delay_us(ICE_CHK_Q_ENA_INTERVAL_US);
 278                 reg = ICE_READ_REG(hw, QRX_CTRL(q_idx));
 279                 if (on) {
 280                         if ((reg & QRX_CTRL_QENA_REQ_M) &&
 281                             (reg & QRX_CTRL_QENA_STAT_M))
 282                                 break;
 283                 } else {
 284                         if (!(reg & QRX_CTRL_QENA_REQ_M) &&
 285                             !(reg & QRX_CTRL_QENA_STAT_M))
 286                                 break;
 287                 }
 288         }
 289
 290         /* Check if it is timeout */
 291         if (j >= ICE_CHK_Q_ENA_COUNT) {
 292                 PMD_DRV_LOG(ERR, "Failed to %s rx queue[%u]",
 293                             (on ? "enable" : "disable"), q_idx);
 294                 return -ETIMEDOUT;
 295         }
 296
 297         return 0;
 298 }
 299
 300 static inline int
 301 ice_check_rx_burst_bulk_alloc_preconditions(struct ice_rx_queue *rxq)
 302 {
 303         int ret = 0;
 304
 305         if (!(rxq->rx_free_thresh >= ICE_RX_MAX_BURST)) {
 306                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
 307                              "rxq->rx_free_thresh=%d, "
 308                              "ICE_RX_MAX_BURST=%d",
 309                              rxq->rx_free_thresh, ICE_RX_MAX_BURST);
 310                 ret = -EINVAL;
 311         } else if (!(rxq->rx_free_thresh < rxq->nb_rx_desc)) {
 312                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
 313                              "rxq->rx_free_thresh=%d, "
 314                              "rxq->nb_rx_desc=%d",
 315                              rxq->rx_free_thresh, rxq->nb_rx_desc);
 316                 ret = -EINVAL;
 317         } else if (rxq->nb_rx_desc % rxq->rx_free_thresh != 0) {
 318                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
 319                              "rxq->nb_rx_desc=%d, "
 320                              "rxq->rx_free_thresh=%d",
 321                              rxq->nb_rx_desc, rxq->rx_free_thresh);
 322                 ret = -EINVAL;
 323         }
 324
 325         return ret;
 326 }
 327
 328 /* reset fields in ice_rx_queue back to default */
 329 static void
 330 ice_reset_rx_queue(struct ice_rx_queue *rxq)
 331 {
 332         unsigned int i;
 333         uint16_t len;
 334
 335         if (!rxq) {
 336                 PMD_DRV_LOG(DEBUG, "Pointer to rxq is NULL");
 337                 return;
 338         }
 339
 340         len = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);
 341
 342         for (i = 0; i < len * sizeof(union ice_rx_flex_desc); i++)
 343                 ((volatile char *)rxq->rx_ring)[i] = 0;
 344
 345         memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
 346         for (i = 0; i < ICE_RX_MAX_BURST; ++i)
 347                 rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
 348
 349         rxq->rx_nb_avail = 0;
 350         rxq->rx_next_avail = 0;
 351         rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
 352
 353         rxq->rx_tail = 0;
 354         rxq->nb_rx_hold = 0;
 355         rxq->pkt_first_seg = NULL;
 356         rxq->pkt_last_seg = NULL;
 357
 358         rxq->rxrearm_start = 0;
 359         rxq->rxrearm_nb = 0;
 360 }
 361
 362 int
 363 ice_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 364 {
 365         struct ice_rx_queue *rxq;
 366         int err;
 367         struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 368
 369         PMD_INIT_FUNC_TRACE();
 370
 371         if (rx_queue_id >= dev->data->nb_rx_queues) {
 372                 PMD_DRV_LOG(ERR, "RX queue %u is out of range %u",
 373                             rx_queue_id, dev->data->nb_rx_queues);
 374                 return -EINVAL;
 375         }
 376
 377         rxq = dev->data->rx_queues[rx_queue_id];
 378         if (!rxq || !rxq->q_set) {
 379                 PMD_DRV_LOG(ERR, "RX queue %u not available or setup",
 380                             rx_queue_id);
 381                 return -EINVAL;
 382         }
 383
 384         err = ice_program_hw_rx_queue(rxq);
 385         if (err) {
 386                 PMD_DRV_LOG(ERR, "fail to program RX queue %u",
 387                             rx_queue_id);
 388                 return -EIO;
 389         }
 390
 391         err = ice_alloc_rx_queue_mbufs(rxq);
 392         if (err) {
 393                 PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
 394                 return -ENOMEM;
 395         }
 396
 397         /* Init the RX tail register. */
 398         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 399
 400         err = ice_switch_rx_queue(hw, rxq->reg_idx, true);
 401         if (err) {
 402                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
 403                             rx_queue_id);
 404
 405                 rxq->rx_rel_mbufs(rxq);
 406                 ice_reset_rx_queue(rxq);
 407                 return -EINVAL;
 408         }
 409
 410         dev->data->rx_queue_state[rx_queue_id] =
 411                 RTE_ETH_QUEUE_STATE_STARTED;
 412
 413         return 0;
 414 }
 415
 416 int
 417 ice_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 418 {
 419         struct ice_rx_queue *rxq;
 420         int err;
 421         struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 422
 423         if (rx_queue_id < dev->data->nb_rx_queues) {
 424                 rxq = dev->data->rx_queues[rx_queue_id];
 425
 426                 err = ice_switch_rx_queue(hw, rxq->reg_idx, false);
 427                 if (err) {
 428                         PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
 429                                     rx_queue_id);
 430                         return -EINVAL;
 431                 }
 432                 rxq->rx_rel_mbufs(rxq);
 433                 ice_reset_rx_queue(rxq);
 434                 dev->data->rx_queue_state[rx_queue_id] =
 435                         RTE_ETH_QUEUE_STATE_STOPPED;
 436         }
 437
 438         return 0;
 439 }
 440
 441 int
 442 ice_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 443 {
 444         struct ice_tx_queue *txq;
 445         int err;
 446         struct ice_vsi *vsi;
 447         struct ice_hw *hw;
 448         struct ice_aqc_add_tx_qgrp txq_elem;
 449         struct ice_tlan_ctx tx_ctx;
 450
 451         PMD_INIT_FUNC_TRACE();
 452
 453         if (tx_queue_id >= dev->data->nb_tx_queues) {
 454                 PMD_DRV_LOG(ERR, "TX queue %u is out of range %u",
 455                             tx_queue_id, dev->data->nb_tx_queues);
 456                 return -EINVAL;
 457         }
 458
 459         txq = dev->data->tx_queues[tx_queue_id];
 460         if (!txq || !txq->q_set) {
 461                 PMD_DRV_LOG(ERR, "TX queue %u is not available or setup",
 462                             tx_queue_id);
 463                 return -EINVAL;
 464         }
 465
 466         vsi = txq->vsi;
 467         hw = ICE_VSI_TO_HW(vsi);
 468
 469         memset(&txq_elem, 0, sizeof(txq_elem));
 470         memset(&tx_ctx, 0, sizeof(tx_ctx));
 471         txq_elem.num_txqs = 1;
 472         txq_elem.txqs[0].txq_id = rte_cpu_to_le_16(txq->reg_idx);
 473
 474         tx_ctx.base = txq->tx_ring_dma / ICE_QUEUE_BASE_ADDR_UNIT;
 475         tx_ctx.qlen = txq->nb_tx_desc;
 476         tx_ctx.pf_num = hw->pf_id;
 477         tx_ctx.vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_PF;
 478         tx_ctx.src_vsi = vsi->vsi_id;
 479         tx_ctx.port_num = hw->port_info->lport;
 480         tx_ctx.tso_ena = 1; /* tso enable */
 481         tx_ctx.tso_qnum = txq->reg_idx; /* index for tso state structure */
 482         tx_ctx.legacy_int = 1; /* Legacy or Advanced Host Interface */
 483
 484         ice_set_ctx((uint8_t *)&tx_ctx, txq_elem.txqs[0].txq_ctx,
 485                     ice_tlan_ctx_info);
 486
 487         txq->qtx_tail = hw->hw_addr + QTX_COMM_DBELL(txq->reg_idx);
 488
 489         /* Init the Tx tail register*/
 490         ICE_PCI_REG_WRITE(txq->qtx_tail, 0);
 491
 492         /* Fix me, we assume TC always 0 here */
 493         err = ice_ena_vsi_txq(hw->port_info, vsi->idx, 0, tx_queue_id, 1,
 494                         &txq_elem, sizeof(txq_elem), NULL);
 495         if (err) {
 496                 PMD_DRV_LOG(ERR, "Failed to add lan txq");
 497                 return -EIO;
 498         }
 499         /* store the schedule node id */
 500         txq->q_teid = txq_elem.txqs[0].q_teid;
 501
 502         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 503         return 0;
 504 }
 505
 506 static enum ice_status
 507 ice_fdir_program_hw_rx_queue(struct ice_rx_queue *rxq)
 508 {
 509         struct ice_vsi *vsi = rxq->vsi;
 510         struct ice_hw *hw = ICE_VSI_TO_HW(vsi);
 511         uint32_t rxdid = ICE_RXDID_LEGACY_1;
 512         struct ice_rlan_ctx rx_ctx;
 513         enum ice_status err;
 514         uint32_t regval;
 515
 516         rxq->rx_hdr_len = 0;
 517         rxq->rx_buf_len = 1024;
 518
 519         memset(&rx_ctx, 0, sizeof(rx_ctx));
 520
 521         rx_ctx.base = rxq->rx_ring_dma / ICE_QUEUE_BASE_ADDR_UNIT;
 522         rx_ctx.qlen = rxq->nb_rx_desc;
 523         rx_ctx.dbuf = rxq->rx_buf_len >> ICE_RLAN_CTX_DBUF_S;
 524         rx_ctx.hbuf = rxq->rx_hdr_len >> ICE_RLAN_CTX_HBUF_S;
 525         rx_ctx.dtype = 0; /* No Header Split mode */
 526         rx_ctx.dsize = 1; /* 32B descriptors */
 527         rx_ctx.rxmax = RTE_ETHER_MAX_LEN;
 528         /* TPH: Transaction Layer Packet (TLP) processing hints */
 529         rx_ctx.tphrdesc_ena = 1;
 530         rx_ctx.tphwdesc_ena = 1;
 531         rx_ctx.tphdata_ena = 1;
 532         rx_ctx.tphhead_ena = 1;
 533         /* Low Receive Queue Threshold defined in 64 descriptors units.
 534          * When the number of free descriptors goes below the lrxqthresh,
 535          * an immediate interrupt is triggered.
 536          */
 537         rx_ctx.lrxqthresh = 2;
 538         /*default use 32 byte descriptor, vlan tag extract to L2TAG2(1st)*/
 539         rx_ctx.l2tsel = 1;
 540         rx_ctx.showiv = 0;
 541         rx_ctx.crcstrip = (rxq->crc_len == 0) ? 1 : 0;
 542
 543         /* Enable Flexible Descriptors in the queue context which
 544          * allows this driver to select a specific receive descriptor format
 545          */
 546         regval = (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) &
 547                 QRXFLXP_CNTXT_RXDID_IDX_M;
 548
 549         /* increasing context priority to pick up profile ID;
 550          * default is 0x01; setting to 0x03 to ensure profile
 551          * is programming if prev context is of same priority
 552          */
 553         regval |= (0x03 << QRXFLXP_CNTXT_RXDID_PRIO_S) &
 554                 QRXFLXP_CNTXT_RXDID_PRIO_M;
 555
 556         ICE_WRITE_REG(hw, QRXFLXP_CNTXT(rxq->reg_idx), regval);
 557
 558         err = ice_clear_rxq_ctx(hw, rxq->reg_idx);
 559         if (err) {
 560                 PMD_DRV_LOG(ERR, "Failed to clear Lan Rx queue (%u) context",
 561                             rxq->queue_id);
 562                 return -EINVAL;
 563         }
 564         err = ice_write_rxq_ctx(hw, &rx_ctx, rxq->reg_idx);
 565         if (err) {
 566                 PMD_DRV_LOG(ERR, "Failed to write Lan Rx queue (%u) context",
 567                             rxq->queue_id);
 568                 return -EINVAL;
 569         }
 570
 571         rxq->qrx_tail = hw->hw_addr + QRX_TAIL(rxq->reg_idx);
 572
 573         /* Init the Rx tail register*/
 574         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 575
 576         return 0;
 577 }
 578
 579 int
 580 ice_fdir_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 581 {
 582         struct ice_rx_queue *rxq;
 583         int err;
 584         struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 585         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 586
 587         PMD_INIT_FUNC_TRACE();
 588
 589         rxq = pf->fdir.rxq;
 590         if (!rxq || !rxq->q_set) {
 591                 PMD_DRV_LOG(ERR, "FDIR RX queue %u not available or setup",
 592                             rx_queue_id);
 593                 return -EINVAL;
 594         }
 595
 596         err = ice_fdir_program_hw_rx_queue(rxq);
 597         if (err) {
 598                 PMD_DRV_LOG(ERR, "fail to program FDIR RX queue %u",
 599                             rx_queue_id);
 600                 return -EIO;
 601         }
 602
 603         /* Init the RX tail register. */
 604         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 605
 606         err = ice_switch_rx_queue(hw, rxq->reg_idx, true);
 607         if (err) {
 608                 PMD_DRV_LOG(ERR, "Failed to switch FDIR RX queue %u on",
 609                             rx_queue_id);
 610
 611                 ice_reset_rx_queue(rxq);
 612                 return -EINVAL;
 613         }
 614
 615         return 0;
 616 }
 617
 618 int
 619 ice_fdir_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 620 {
 621         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 622         struct ice_tx_queue *txq;
 623         int err;
 624         struct ice_vsi *vsi;
 625         struct ice_hw *hw;
 626         struct ice_aqc_add_tx_qgrp txq_elem;
 627         struct ice_tlan_ctx tx_ctx;
 628
 629         PMD_INIT_FUNC_TRACE();
 630
 631         txq = pf->fdir.txq;
 632         if (!txq || !txq->q_set) {
 633                 PMD_DRV_LOG(ERR, "FDIR TX queue %u is not available or setup",
 634                             tx_queue_id);
 635                 return -EINVAL;
 636         }
 637
 638         vsi = txq->vsi;
 639         hw = ICE_VSI_TO_HW(vsi);
 640
 641         memset(&txq_elem, 0, sizeof(txq_elem));
 642         memset(&tx_ctx, 0, sizeof(tx_ctx));
 643         txq_elem.num_txqs = 1;
 644         txq_elem.txqs[0].txq_id = rte_cpu_to_le_16(txq->reg_idx);
 645
 646         tx_ctx.base = txq->tx_ring_dma / ICE_QUEUE_BASE_ADDR_UNIT;
 647         tx_ctx.qlen = txq->nb_tx_desc;
 648         tx_ctx.pf_num = hw->pf_id;
 649         tx_ctx.vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_PF;
 650         tx_ctx.src_vsi = vsi->vsi_id;
 651         tx_ctx.port_num = hw->port_info->lport;
 652         tx_ctx.tso_ena = 1; /* tso enable */
 653         tx_ctx.tso_qnum = txq->reg_idx; /* index for tso state structure */
 654         tx_ctx.legacy_int = 1; /* Legacy or Advanced Host Interface */
 655
 656         ice_set_ctx((uint8_t *)&tx_ctx, txq_elem.txqs[0].txq_ctx,
 657                     ice_tlan_ctx_info);
 658
 659         txq->qtx_tail = hw->hw_addr + QTX_COMM_DBELL(txq->reg_idx);
 660
 661         /* Init the Tx tail register*/
 662         ICE_PCI_REG_WRITE(txq->qtx_tail, 0);
 663
 664         /* Fix me, we assume TC always 0 here */
 665         err = ice_ena_vsi_txq(hw->port_info, vsi->idx, 0, tx_queue_id, 1,
 666                               &txq_elem, sizeof(txq_elem), NULL);
 667         if (err) {
 668                 PMD_DRV_LOG(ERR, "Failed to add FDIR txq");
 669                 return -EIO;
 670         }
 671         /* store the schedule node id */
 672         txq->q_teid = txq_elem.txqs[0].q_teid;
 673
 674         return 0;
 675 }
 676
 677 /* Free all mbufs for descriptors in tx queue */
 678 static void
 679 _ice_tx_queue_release_mbufs(struct ice_tx_queue *txq)
 680 {
 681         uint16_t i;
 682
 683         if (!txq || !txq->sw_ring) {
 684                 PMD_DRV_LOG(DEBUG, "Pointer to txq or sw_ring is NULL");
 685                 return;
 686         }
 687
 688         for (i = 0; i < txq->nb_tx_desc; i++) {
 689                 if (txq->sw_ring[i].mbuf) {
 690                         rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
 691                         txq->sw_ring[i].mbuf = NULL;
 692                 }
 693         }
 694 }
 695
 696 static void
 697 ice_reset_tx_queue(struct ice_tx_queue *txq)
 698 {
 699         struct ice_tx_entry *txe;
 700         uint16_t i, prev, size;
 701
 702         if (!txq) {
 703                 PMD_DRV_LOG(DEBUG, "Pointer to txq is NULL");
 704                 return;
 705         }
 706
 707         txe = txq->sw_ring;
 708         size = sizeof(struct ice_tx_desc) * txq->nb_tx_desc;
 709         for (i = 0; i < size; i++)
 710                 ((volatile char *)txq->tx_ring)[i] = 0;
 711
 712         prev = (uint16_t)(txq->nb_tx_desc - 1);
 713         for (i = 0; i < txq->nb_tx_desc; i++) {
 714                 volatile struct ice_tx_desc *txd = &txq->tx_ring[i];
 715
 716                 txd->cmd_type_offset_bsz =
 717                         rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DESC_DONE);
 718                 txe[i].mbuf =  NULL;
 719                 txe[i].last_id = i;
 720                 txe[prev].next_id = i;
 721                 prev = i;
 722         }
 723
 724         txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
 725         txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
 726
 727         txq->tx_tail = 0;
 728         txq->nb_tx_used = 0;
 729
 730         txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
 731         txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
 732 }
 733
 734 int
 735 ice_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 736 {
 737         struct ice_tx_queue *txq;
 738         struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 739         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 740         struct ice_vsi *vsi = pf->main_vsi;
 741         enum ice_status status;
 742         uint16_t q_ids[1];
 743         uint32_t q_teids[1];
 744         uint16_t q_handle = tx_queue_id;
 745
 746         if (tx_queue_id >= dev->data->nb_tx_queues) {
 747                 PMD_DRV_LOG(ERR, "TX queue %u is out of range %u",
 748                             tx_queue_id, dev->data->nb_tx_queues);
 749                 return -EINVAL;
 750         }
 751
 752         txq = dev->data->tx_queues[tx_queue_id];
 753         if (!txq) {
 754                 PMD_DRV_LOG(ERR, "TX queue %u is not available",
 755                             tx_queue_id);
 756                 return -EINVAL;
 757         }
 758
 759         q_ids[0] = txq->reg_idx;
 760         q_teids[0] = txq->q_teid;
 761
 762         /* Fix me, we assume TC always 0 here */
 763         status = ice_dis_vsi_txq(hw->port_info, vsi->idx, 0, 1, &q_handle,
 764                                 q_ids, q_teids, ICE_NO_RESET, 0, NULL);
 765         if (status != ICE_SUCCESS) {
 766                 PMD_DRV_LOG(DEBUG, "Failed to disable Lan Tx queue");
 767                 return -EINVAL;
 768         }
 769
 770         txq->tx_rel_mbufs(txq);
 771         ice_reset_tx_queue(txq);
 772         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 773
 774         return 0;
 775 }
 776
 777 int
 778 ice_fdir_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 779 {
 780         struct ice_rx_queue *rxq;
 781         int err;
 782         struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 783         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 784
 785         rxq = pf->fdir.rxq;
 786
 787         err = ice_switch_rx_queue(hw, rxq->reg_idx, false);
 788         if (err) {
 789                 PMD_DRV_LOG(ERR, "Failed to switch FDIR RX queue %u off",
 790                             rx_queue_id);
 791                 return -EINVAL;
 792         }
 793         rxq->rx_rel_mbufs(rxq);
 794
 795         return 0;
 796 }
 797
 798 int
 799 ice_fdir_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 800 {
 801         struct ice_tx_queue *txq;
 802         struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 803         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 804         struct ice_vsi *vsi = pf->main_vsi;
 805         enum ice_status status;
 806         uint16_t q_ids[1];
 807         uint32_t q_teids[1];
 808         uint16_t q_handle = tx_queue_id;
 809
 810         txq = pf->fdir.txq;
 811         if (!txq) {
 812                 PMD_DRV_LOG(ERR, "TX queue %u is not available",
 813                             tx_queue_id);
 814                 return -EINVAL;
 815         }
 816         vsi = txq->vsi;
 817
 818         q_ids[0] = txq->reg_idx;
 819         q_teids[0] = txq->q_teid;
 820
 821         /* Fix me, we assume TC always 0 here */
 822         status = ice_dis_vsi_txq(hw->port_info, vsi->idx, 0, 1, &q_handle,
 823                                  q_ids, q_teids, ICE_NO_RESET, 0, NULL);
 824         if (status != ICE_SUCCESS) {
 825                 PMD_DRV_LOG(DEBUG, "Failed to disable Lan Tx queue");
 826                 return -EINVAL;
 827         }
 828
 829         txq->tx_rel_mbufs(txq);
 830
 831         return 0;
 832 }
 833
 834 int
 835 ice_rx_queue_setup(struct rte_eth_dev *dev,
 836                    uint16_t queue_idx,
 837                    uint16_t nb_desc,
 838                    unsigned int socket_id,
 839                    const struct rte_eth_rxconf *rx_conf,
 840                    struct rte_mempool *mp)
 841 {
 842         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 843         struct ice_adapter *ad =
 844                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
 845         struct ice_vsi *vsi = pf->main_vsi;
 846         struct ice_rx_queue *rxq;
 847         const struct rte_memzone *rz;
 848         uint32_t ring_size;
 849         uint16_t len;
 850         int use_def_burst_func = 1;
 851
 852         if (nb_desc % ICE_ALIGN_RING_DESC != 0 ||
 853             nb_desc > ICE_MAX_RING_DESC ||
 854             nb_desc < ICE_MIN_RING_DESC) {
 855                 PMD_INIT_LOG(ERR, "Number (%u) of receive descriptors is "
 856                              "invalid", nb_desc);
 857                 return -EINVAL;
 858         }
 859
 860         /* Free memory if needed */
 861         if (dev->data->rx_queues[queue_idx]) {
 862                 ice_rx_queue_release(dev->data->rx_queues[queue_idx]);
 863                 dev->data->rx_queues[queue_idx] = NULL;
 864         }
 865
 866         /* Allocate the rx queue data structure */
 867         rxq = rte_zmalloc_socket(NULL,
 868                                  sizeof(struct ice_rx_queue),
 869                                  RTE_CACHE_LINE_SIZE,
 870                                  socket_id);
 871         if (!rxq) {
 872                 PMD_INIT_LOG(ERR, "Failed to allocate memory for "
 873                              "rx queue data structure");
 874                 return -ENOMEM;
 875         }
 876         rxq->mp = mp;
 877         rxq->nb_rx_desc = nb_desc;
 878         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 879         rxq->queue_id = queue_idx;
 880
 881         rxq->reg_idx = vsi->base_queue + queue_idx;
 882         rxq->port_id = dev->data->port_id;
 883         if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC)
 884                 rxq->crc_len = RTE_ETHER_CRC_LEN;
 885         else
 886                 rxq->crc_len = 0;
 887
 888         rxq->drop_en = rx_conf->rx_drop_en;
 889         rxq->vsi = vsi;
 890         rxq->rx_deferred_start = rx_conf->rx_deferred_start;
 891         rxq->proto_xtr = pf->proto_xtr != NULL ?
 892                          pf->proto_xtr[queue_idx] : PROTO_XTR_NONE;
 893
 894         /* Allocate the maximun number of RX ring hardware descriptor. */
 895         len = ICE_MAX_RING_DESC;
 896
 897         /**
 898          * Allocating a little more memory because vectorized/bulk_alloc Rx
 899          * functions doesn't check boundaries each time.
 900          */
 901         len += ICE_RX_MAX_BURST;
 902
 903         /* Allocate the maximum number of RX ring hardware descriptor. */
 904         ring_size = sizeof(union ice_rx_flex_desc) * len;
 905         ring_size = RTE_ALIGN(ring_size, ICE_DMA_MEM_ALIGN);
 906         rz = rte_eth_dma_zone_reserve(dev, "rx_ring", queue_idx,
 907                                       ring_size, ICE_RING_BASE_ALIGN,
 908                                       socket_id);
 909         if (!rz) {
 910                 ice_rx_queue_release(rxq);
 911                 PMD_INIT_LOG(ERR, "Failed to reserve DMA memory for RX");
 912                 return -ENOMEM;
 913         }
 914
 915         /* Zero all the descriptors in the ring. */
 916         memset(rz->addr, 0, ring_size);
 917
 918         rxq->rx_ring_dma = rz->iova;
 919         rxq->rx_ring = rz->addr;
 920
 921         /* always reserve more for bulk alloc */
 922         len = (uint16_t)(nb_desc + ICE_RX_MAX_BURST);
 923
 924         /* Allocate the software ring. */
 925         rxq->sw_ring = rte_zmalloc_socket(NULL,
 926                                           sizeof(struct ice_rx_entry) * len,
 927                                           RTE_CACHE_LINE_SIZE,
 928                                           socket_id);
 929         if (!rxq->sw_ring) {
 930                 ice_rx_queue_release(rxq);
 931                 PMD_INIT_LOG(ERR, "Failed to allocate memory for SW ring");
 932                 return -ENOMEM;
 933         }
 934
 935         ice_reset_rx_queue(rxq);
 936         rxq->q_set = true;
 937         dev->data->rx_queues[queue_idx] = rxq;
 938         rxq->rx_rel_mbufs = _ice_rx_queue_release_mbufs;
 939
 940         use_def_burst_func = ice_check_rx_burst_bulk_alloc_preconditions(rxq);
 941
 942         if (!use_def_burst_func) {
 943                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
 944                              "satisfied. Rx Burst Bulk Alloc function will be "
 945                              "used on port=%d, queue=%d.",
 946                              rxq->port_id, rxq->queue_id);
 947         } else {
 948                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
 949                              "not satisfied, Scattered Rx is requested. "
 950                              "on port=%d, queue=%d.",
 951                              rxq->port_id, rxq->queue_id);
 952                 ad->rx_bulk_alloc_allowed = false;
 953         }
 954
 955         return 0;
 956 }
 957
 958 void
 959 ice_rx_queue_release(void *rxq)
 960 {
 961         struct ice_rx_queue *q = (struct ice_rx_queue *)rxq;
 962
 963         if (!q) {
 964                 PMD_DRV_LOG(DEBUG, "Pointer to rxq is NULL");
 965                 return;
 966         }
 967
 968         q->rx_rel_mbufs(q);
 969         rte_free(q->sw_ring);
 970         rte_free(q);
 971 }
 972
 973 int
 974 ice_tx_queue_setup(struct rte_eth_dev *dev,
 975                    uint16_t queue_idx,
 976                    uint16_t nb_desc,
 977                    unsigned int socket_id,
 978                    const struct rte_eth_txconf *tx_conf)
 979 {
 980         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 981         struct ice_vsi *vsi = pf->main_vsi;
 982         struct ice_tx_queue *txq;
 983         const struct rte_memzone *tz;
 984         uint32_t ring_size;
 985         uint16_t tx_rs_thresh, tx_free_thresh;
 986         uint64_t offloads;
 987
 988         offloads = tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
 989
 990         if (nb_desc % ICE_ALIGN_RING_DESC != 0 ||
 991             nb_desc > ICE_MAX_RING_DESC ||
 992             nb_desc < ICE_MIN_RING_DESC) {
 993                 PMD_INIT_LOG(ERR, "Number (%u) of transmit descriptors is "
 994                              "invalid", nb_desc);
 995                 return -EINVAL;
 996         }
 997
 998         /**
 999          * The following two parameters control the setting of the RS bit on
1000          * transmit descriptors. TX descriptors will have their RS bit set
1001          * after txq->tx_rs_thresh descriptors have been used. The TX
1002          * descriptor ring will be cleaned after txq->tx_free_thresh
1003          * descriptors are used or if the number of descriptors required to
1004          * transmit a packet is greater than the number of free TX descriptors.
1005          *
1006          * The following constraints must be satisfied:
1007          *  - tx_rs_thresh must be greater than 0.
1008          *  - tx_rs_thresh must be less than the size of the ring minus 2.
1009          *  - tx_rs_thresh must be less than or equal to tx_free_thresh.
1010          *  - tx_rs_thresh must be a divisor of the ring size.
1011          *  - tx_free_thresh must be greater than 0.
1012          *  - tx_free_thresh must be less than the size of the ring minus 3.
1013          *  - tx_free_thresh + tx_rs_thresh must not exceed nb_desc.
1014          *
1015          * One descriptor in the TX ring is used as a sentinel to avoid a H/W
1016          * race condition, hence the maximum threshold constraints. When set
1017          * to zero use default values.
1018          */
1019         tx_free_thresh = (uint16_t)(tx_conf->tx_free_thresh ?
1020                                     tx_conf->tx_free_thresh :
1021                                     ICE_DEFAULT_TX_FREE_THRESH);
1022         /* force tx_rs_thresh to adapt an aggresive tx_free_thresh */
1023         tx_rs_thresh =
1024                 (ICE_DEFAULT_TX_RSBIT_THRESH + tx_free_thresh > nb_desc) ?
1025                         nb_desc - tx_free_thresh : ICE_DEFAULT_TX_RSBIT_THRESH;
1026         if (tx_conf->tx_rs_thresh)
1027                 tx_rs_thresh = tx_conf->tx_rs_thresh;
1028         if (tx_rs_thresh + tx_free_thresh > nb_desc) {
1029                 PMD_INIT_LOG(ERR, "tx_rs_thresh + tx_free_thresh must not "
1030                                 "exceed nb_desc. (tx_rs_thresh=%u "
1031                                 "tx_free_thresh=%u nb_desc=%u port = %d queue=%d)",
1032                                 (unsigned int)tx_rs_thresh,
1033                                 (unsigned int)tx_free_thresh,
1034                                 (unsigned int)nb_desc,
1035                                 (int)dev->data->port_id,
1036                                 (int)queue_idx);
1037                 return -EINVAL;
1038         }
1039         if (tx_rs_thresh >= (nb_desc - 2)) {
1040                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the "
1041                              "number of TX descriptors minus 2. "
1042                              "(tx_rs_thresh=%u port=%d queue=%d)",
1043                              (unsigned int)tx_rs_thresh,
1044                              (int)dev->data->port_id,
1045                              (int)queue_idx);
1046                 return -EINVAL;
1047         }
1048         if (tx_free_thresh >= (nb_desc - 3)) {
1049                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the "
1050                              "tx_free_thresh must be less than the "
1051                              "number of TX descriptors minus 3. "
1052                              "(tx_free_thresh=%u port=%d queue=%d)",
1053                              (unsigned int)tx_free_thresh,
1054                              (int)dev->data->port_id,
1055                              (int)queue_idx);
1056                 return -EINVAL;
1057         }
1058         if (tx_rs_thresh > tx_free_thresh) {
1059                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than or "
1060                              "equal to tx_free_thresh. (tx_free_thresh=%u"
1061                              " tx_rs_thresh=%u port=%d queue=%d)",
1062                              (unsigned int)tx_free_thresh,
1063                              (unsigned int)tx_rs_thresh,
1064                              (int)dev->data->port_id,
1065                              (int)queue_idx);
1066                 return -EINVAL;
1067         }
1068         if ((nb_desc % tx_rs_thresh) != 0) {
1069                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be a divisor of the "
1070                              "number of TX descriptors. (tx_rs_thresh=%u"
1071                              " port=%d queue=%d)",
1072                              (unsigned int)tx_rs_thresh,
1073                              (int)dev->data->port_id,
1074                              (int)queue_idx);
1075                 return -EINVAL;
1076         }
1077         if (tx_rs_thresh > 1 && tx_conf->tx_thresh.wthresh != 0) {
1078                 PMD_INIT_LOG(ERR, "TX WTHRESH must be set to 0 if "
1079                              "tx_rs_thresh is greater than 1. "
1080                              "(tx_rs_thresh=%u port=%d queue=%d)",
1081                              (unsigned int)tx_rs_thresh,
1082                              (int)dev->data->port_id,
1083                              (int)queue_idx);
1084                 return -EINVAL;
1085         }
1086
1087         /* Free memory if needed. */
1088         if (dev->data->tx_queues[queue_idx]) {
1089                 ice_tx_queue_release(dev->data->tx_queues[queue_idx]);
1090                 dev->data->tx_queues[queue_idx] = NULL;
1091         }
1092
1093         /* Allocate the TX queue data structure. */
1094         txq = rte_zmalloc_socket(NULL,
1095                                  sizeof(struct ice_tx_queue),
1096                                  RTE_CACHE_LINE_SIZE,
1097                                  socket_id);
1098         if (!txq) {
1099                 PMD_INIT_LOG(ERR, "Failed to allocate memory for "
1100                              "tx queue structure");
1101                 return -ENOMEM;
1102         }
1103
1104         /* Allocate TX hardware ring descriptors. */
1105         ring_size = sizeof(struct ice_tx_desc) * ICE_MAX_RING_DESC;
1106         ring_size = RTE_ALIGN(ring_size, ICE_DMA_MEM_ALIGN);
1107         tz = rte_eth_dma_zone_reserve(dev, "tx_ring", queue_idx,
1108                                       ring_size, ICE_RING_BASE_ALIGN,
1109                                       socket_id);
1110         if (!tz) {
1111                 ice_tx_queue_release(txq);
1112                 PMD_INIT_LOG(ERR, "Failed to reserve DMA memory for TX");
1113                 return -ENOMEM;
1114         }
1115
1116         txq->nb_tx_desc = nb_desc;
1117         txq->tx_rs_thresh = tx_rs_thresh;
1118         txq->tx_free_thresh = tx_free_thresh;
1119         txq->pthresh = tx_conf->tx_thresh.pthresh;
1120         txq->hthresh = tx_conf->tx_thresh.hthresh;
1121         txq->wthresh = tx_conf->tx_thresh.wthresh;
1122         txq->queue_id = queue_idx;
1123
1124         txq->reg_idx = vsi->base_queue + queue_idx;
1125         txq->port_id = dev->data->port_id;
1126         txq->offloads = offloads;
1127         txq->vsi = vsi;
1128         txq->tx_deferred_start = tx_conf->tx_deferred_start;
1129
1130         txq->tx_ring_dma = tz->iova;
1131         txq->tx_ring = tz->addr;
1132
1133         /* Allocate software ring */
1134         txq->sw_ring =
1135                 rte_zmalloc_socket(NULL,
1136                                    sizeof(struct ice_tx_entry) * nb_desc,
1137                                    RTE_CACHE_LINE_SIZE,
1138                                    socket_id);
1139         if (!txq->sw_ring) {
1140                 ice_tx_queue_release(txq);
1141                 PMD_INIT_LOG(ERR, "Failed to allocate memory for SW TX ring");
1142                 return -ENOMEM;
1143         }
1144
1145         ice_reset_tx_queue(txq);
1146         txq->q_set = true;
1147         dev->data->tx_queues[queue_idx] = txq;
1148         txq->tx_rel_mbufs = _ice_tx_queue_release_mbufs;
1149         ice_set_tx_function_flag(dev, txq);
1150
1151         return 0;
1152 }
1153
1154 void
1155 ice_tx_queue_release(void *txq)
1156 {
1157         struct ice_tx_queue *q = (struct ice_tx_queue *)txq;
1158
1159         if (!q) {
1160                 PMD_DRV_LOG(DEBUG, "Pointer to TX queue is NULL");
1161                 return;
1162         }
1163
1164         q->tx_rel_mbufs(q);
1165         rte_free(q->sw_ring);
1166         rte_free(q);
1167 }
1168
1169 void
1170 ice_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
1171                  struct rte_eth_rxq_info *qinfo)
1172 {
1173         struct ice_rx_queue *rxq;
1174
1175         rxq = dev->data->rx_queues[queue_id];
1176
1177         qinfo->mp = rxq->mp;
1178         qinfo->scattered_rx = dev->data->scattered_rx;
1179         qinfo->nb_desc = rxq->nb_rx_desc;
1180
1181         qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
1182         qinfo->conf.rx_drop_en = rxq->drop_en;
1183         qinfo->conf.rx_deferred_start = rxq->rx_deferred_start;
1184 }
1185
1186 void
1187 ice_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
1188                  struct rte_eth_txq_info *qinfo)
1189 {
1190         struct ice_tx_queue *txq;
1191
1192         txq = dev->data->tx_queues[queue_id];
1193
1194         qinfo->nb_desc = txq->nb_tx_desc;
1195
1196         qinfo->conf.tx_thresh.pthresh = txq->pthresh;
1197         qinfo->conf.tx_thresh.hthresh = txq->hthresh;
1198         qinfo->conf.tx_thresh.wthresh = txq->wthresh;
1199
1200         qinfo->conf.tx_free_thresh = txq->tx_free_thresh;
1201         qinfo->conf.tx_rs_thresh = txq->tx_rs_thresh;
1202         qinfo->conf.offloads = txq->offloads;
1203         qinfo->conf.tx_deferred_start = txq->tx_deferred_start;
1204 }
1205
1206 uint32_t
1207 ice_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1208 {
1209 #define ICE_RXQ_SCAN_INTERVAL 4
1210         volatile union ice_rx_flex_desc *rxdp;
1211         struct ice_rx_queue *rxq;
1212         uint16_t desc = 0;
1213
1214         rxq = dev->data->rx_queues[rx_queue_id];
1215         rxdp = &rxq->rx_ring[rxq->rx_tail];
1216         while ((desc < rxq->nb_rx_desc) &&
1217                rte_le_to_cpu_16(rxdp->wb.status_error0) &
1218                (1 << ICE_RX_FLEX_DESC_STATUS0_DD_S)) {
1219                 /**
1220                  * Check the DD bit of a rx descriptor of each 4 in a group,
1221                  * to avoid checking too frequently and downgrading performance
1222                  * too much.
1223                  */
1224                 desc += ICE_RXQ_SCAN_INTERVAL;
1225                 rxdp += ICE_RXQ_SCAN_INTERVAL;
1226                 if (rxq->rx_tail + desc >= rxq->nb_rx_desc)
1227                         rxdp = &(rxq->rx_ring[rxq->rx_tail +
1228                                  desc - rxq->nb_rx_desc]);
1229         }
1230
1231         return desc;
1232 }
1233
1234 #define ICE_RX_FLEX_ERR0_BITS   \
1235         ((1 << ICE_RX_FLEX_DESC_STATUS0_HBO_S) |        \
1236          (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_IPE_S) |   \
1237          (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_L4E_S) |   \
1238          (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_EIPE_S) |  \
1239          (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_EUDPE_S) | \
1240          (1 << ICE_RX_FLEX_DESC_STATUS0_RXE_S))
1241
1242 /* Rx L3/L4 checksum */
1243 static inline uint64_t
1244 ice_rxd_error_to_pkt_flags(uint16_t stat_err0)
1245 {
1246         uint64_t flags = 0;
1247
1248         /* check if HW has decoded the packet and checksum */
1249         if (unlikely(!(stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_L3L4P_S))))
1250                 return 0;
1251
1252         if (likely(!(stat_err0 & ICE_RX_FLEX_ERR0_BITS))) {
1253                 flags |= (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD);
1254                 return flags;
1255         }
1256
1257         if (unlikely(stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_IPE_S)))
1258                 flags |= PKT_RX_IP_CKSUM_BAD;
1259         else
1260                 flags |= PKT_RX_IP_CKSUM_GOOD;
1261
1262         if (unlikely(stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_L4E_S)))
1263                 flags |= PKT_RX_L4_CKSUM_BAD;
1264         else
1265                 flags |= PKT_RX_L4_CKSUM_GOOD;
1266
1267         if (unlikely(stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_XSUM_EIPE_S)))
1268                 flags |= PKT_RX_EIP_CKSUM_BAD;
1269
1270         return flags;
1271 }
1272
1273 static inline void
1274 ice_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union ice_rx_flex_desc *rxdp)
1275 {
1276         if (rte_le_to_cpu_16(rxdp->wb.status_error0) &
1277             (1 << ICE_RX_FLEX_DESC_STATUS0_L2TAG1P_S)) {
1278                 mb->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
1279                 mb->vlan_tci =
1280                         rte_le_to_cpu_16(rxdp->wb.l2tag1);
1281                 PMD_RX_LOG(DEBUG, "Descriptor l2tag1: %u",
1282                            rte_le_to_cpu_16(rxdp->wb.l2tag1));
1283         } else {
1284                 mb->vlan_tci = 0;
1285         }
1286
1287 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
1288         if (rte_le_to_cpu_16(rxdp->wb.status_error1) &
1289             (1 << ICE_RX_FLEX_DESC_STATUS1_L2TAG2P_S)) {
1290                 mb->ol_flags |= PKT_RX_QINQ_STRIPPED | PKT_RX_QINQ |
1291                                 PKT_RX_VLAN_STRIPPED | PKT_RX_VLAN;
1292                 mb->vlan_tci_outer = mb->vlan_tci;
1293                 mb->vlan_tci = rte_le_to_cpu_16(rxdp->wb.l2tag2_2nd);
1294                 PMD_RX_LOG(DEBUG, "Descriptor l2tag2_1: %u, l2tag2_2: %u",
1295                            rte_le_to_cpu_16(rxdp->wb.l2tag2_1st),
1296                            rte_le_to_cpu_16(rxdp->wb.l2tag2_2nd));
1297         } else {
1298                 mb->vlan_tci_outer = 0;
1299         }
1300 #endif
1301         PMD_RX_LOG(DEBUG, "Mbuf vlan_tci: %u, vlan_tci_outer: %u",
1302                    mb->vlan_tci, mb->vlan_tci_outer);
1303 }
1304
1305 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
1306 #define ICE_RX_PROTO_XTR_VALID \
1307         ((1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD4_VALID_S) | \
1308          (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD5_VALID_S))
1309
1310 static void
1311 ice_rxd_to_proto_xtr(struct rte_mbuf *mb,
1312                      volatile struct ice_32b_rx_flex_desc_comms *desc)
1313 {
1314         uint16_t stat_err = rte_le_to_cpu_16(desc->status_error1);
1315         uint32_t metadata;
1316         uint64_t ol_flag;
1317
1318         if (unlikely(!(stat_err & ICE_RX_PROTO_XTR_VALID)))
1319                 return;
1320
1321         ol_flag = ice_rxdid_to_proto_xtr_ol_flag(desc->rxdid);
1322         if (unlikely(!ol_flag))
1323                 return;
1324
1325         mb->ol_flags |= ol_flag;
1326
1327         metadata = stat_err & (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD4_VALID_S) ?
1328                                 rte_le_to_cpu_16(desc->flex_ts.flex.aux0) : 0;
1329
1330         if (likely(stat_err & (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD5_VALID_S)))
1331                 metadata |= rte_le_to_cpu_16(desc->flex_ts.flex.aux1) << 16;
1332
1333         *RTE_NET_ICE_DYNF_PROTO_XTR_METADATA(mb) = metadata;
1334 }
1335 #endif
1336
1337 static inline void
1338 ice_rxd_to_pkt_fields(struct rte_mbuf *mb,
1339                       volatile union ice_rx_flex_desc *rxdp)
1340 {
1341         volatile struct ice_32b_rx_flex_desc_comms *desc =
1342                         (volatile struct ice_32b_rx_flex_desc_comms *)rxdp;
1343         uint16_t stat_err;
1344
1345         stat_err = rte_le_to_cpu_16(desc->status_error0);
1346         if (likely(stat_err & (1 << ICE_RX_FLEX_DESC_STATUS0_RSS_VALID_S))) {
1347                 mb->ol_flags |= PKT_RX_RSS_HASH;
1348                 mb->hash.rss = rte_le_to_cpu_32(desc->rss_hash);
1349         }
1350
1351 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
1352         if (desc->flow_id != 0xFFFFFFFF) {
1353                 mb->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
1354                 mb->hash.fdir.hi = rte_le_to_cpu_32(desc->flow_id);
1355         }
1356
1357         if (unlikely(rte_net_ice_dynf_proto_xtr_metadata_avail()))
1358                 ice_rxd_to_proto_xtr(mb, desc);
1359 #endif
1360 }
1361
1362 #define ICE_LOOK_AHEAD 8
1363 #if (ICE_LOOK_AHEAD != 8)
1364 #error "PMD ICE: ICE_LOOK_AHEAD must be 8\n"
1365 #endif
1366 static inline int
1367 ice_rx_scan_hw_ring(struct ice_rx_queue *rxq)
1368 {
1369         volatile union ice_rx_flex_desc *rxdp;
1370         struct ice_rx_entry *rxep;
1371         struct rte_mbuf *mb;
1372         uint16_t stat_err0;
1373         uint16_t pkt_len;
1374         int32_t s[ICE_LOOK_AHEAD], nb_dd;
1375         int32_t i, j, nb_rx = 0;
1376         uint64_t pkt_flags = 0;
1377         uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
1378
1379         rxdp = &rxq->rx_ring[rxq->rx_tail];
1380         rxep = &rxq->sw_ring[rxq->rx_tail];
1381
1382         stat_err0 = rte_le_to_cpu_16(rxdp->wb.status_error0);
1383
1384         /* Make sure there is at least 1 packet to receive */
1385         if (!(stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_DD_S)))
1386                 return 0;
1387
1388         /**
1389          * Scan LOOK_AHEAD descriptors at a time to determine which
1390          * descriptors reference packets that are ready to be received.
1391          */
1392         for (i = 0; i < ICE_RX_MAX_BURST; i += ICE_LOOK_AHEAD,
1393              rxdp += ICE_LOOK_AHEAD, rxep += ICE_LOOK_AHEAD) {
1394                 /* Read desc statuses backwards to avoid race condition */
1395                 for (j = ICE_LOOK_AHEAD - 1; j >= 0; j--)
1396                         s[j] = rte_le_to_cpu_16(rxdp[j].wb.status_error0);
1397
1398                 rte_smp_rmb();
1399
1400                 /* Compute how many status bits were set */
1401                 for (j = 0, nb_dd = 0; j < ICE_LOOK_AHEAD; j++)
1402                         nb_dd += s[j] & (1 << ICE_RX_FLEX_DESC_STATUS0_DD_S);
1403
1404                 nb_rx += nb_dd;
1405
1406                 /* Translate descriptor info to mbuf parameters */
1407                 for (j = 0; j < nb_dd; j++) {
1408                         mb = rxep[j].mbuf;
1409                         pkt_len = (rte_le_to_cpu_16(rxdp[j].wb.pkt_len) &
1410                                    ICE_RX_FLX_DESC_PKT_LEN_M) - rxq->crc_len;
1411                         mb->data_len = pkt_len;
1412                         mb->pkt_len = pkt_len;
1413                         mb->ol_flags = 0;
1414                         stat_err0 = rte_le_to_cpu_16(rxdp[j].wb.status_error0);
1415                         pkt_flags = ice_rxd_error_to_pkt_flags(stat_err0);
1416                         mb->packet_type = ptype_tbl[ICE_RX_FLEX_DESC_PTYPE_M &
1417                                 rte_le_to_cpu_16(rxdp[j].wb.ptype_flex_flags0)];
1418                         ice_rxd_to_vlan_tci(mb, &rxdp[j]);
1419                         ice_rxd_to_pkt_fields(mb, &rxdp[j]);
1420
1421                         mb->ol_flags |= pkt_flags;
1422                 }
1423
1424                 for (j = 0; j < ICE_LOOK_AHEAD; j++)
1425                         rxq->rx_stage[i + j] = rxep[j].mbuf;
1426
1427                 if (nb_dd != ICE_LOOK_AHEAD)
1428                         break;
1429         }
1430
1431         /* Clear software ring entries */
1432         for (i = 0; i < nb_rx; i++)
1433                 rxq->sw_ring[rxq->rx_tail + i].mbuf = NULL;
1434
1435         PMD_RX_LOG(DEBUG, "ice_rx_scan_hw_ring: "
1436                    "port_id=%u, queue_id=%u, nb_rx=%d",
1437                    rxq->port_id, rxq->queue_id, nb_rx);
1438
1439         return nb_rx;
1440 }
1441
1442 static inline uint16_t
1443 ice_rx_fill_from_stage(struct ice_rx_queue *rxq,
1444                        struct rte_mbuf **rx_pkts,
1445                        uint16_t nb_pkts)
1446 {
1447         uint16_t i;
1448         struct rte_mbuf **stage = &rxq->rx_stage[rxq->rx_next_avail];
1449
1450         nb_pkts = (uint16_t)RTE_MIN(nb_pkts, rxq->rx_nb_avail);
1451
1452         for (i = 0; i < nb_pkts; i++)
1453                 rx_pkts[i] = stage[i];
1454
1455         rxq->rx_nb_avail = (uint16_t)(rxq->rx_nb_avail - nb_pkts);
1456         rxq->rx_next_avail = (uint16_t)(rxq->rx_next_avail + nb_pkts);
1457
1458         return nb_pkts;
1459 }
1460
1461 static inline int
1462 ice_rx_alloc_bufs(struct ice_rx_queue *rxq)
1463 {
1464         volatile union ice_rx_flex_desc *rxdp;
1465         struct ice_rx_entry *rxep;
1466         struct rte_mbuf *mb;
1467         uint16_t alloc_idx, i;
1468         uint64_t dma_addr;
1469         int diag;
1470
1471         /* Allocate buffers in bulk */
1472         alloc_idx = (uint16_t)(rxq->rx_free_trigger -
1473                                (rxq->rx_free_thresh - 1));
1474         rxep = &rxq->sw_ring[alloc_idx];
1475         diag = rte_mempool_get_bulk(rxq->mp, (void *)rxep,
1476                                     rxq->rx_free_thresh);
1477         if (unlikely(diag != 0)) {
1478                 PMD_RX_LOG(ERR, "Failed to get mbufs in bulk");
1479                 return -ENOMEM;
1480         }
1481
1482         rxdp = &rxq->rx_ring[alloc_idx];
1483         for (i = 0; i < rxq->rx_free_thresh; i++) {
1484                 if (likely(i < (rxq->rx_free_thresh - 1)))
1485                         /* Prefetch next mbuf */
1486                         rte_prefetch0(rxep[i + 1].mbuf);
1487
1488                 mb = rxep[i].mbuf;
1489                 rte_mbuf_refcnt_set(mb, 1);
1490                 mb->next = NULL;
1491                 mb->data_off = RTE_PKTMBUF_HEADROOM;
1492                 mb->nb_segs = 1;
1493                 mb->port = rxq->port_id;
1494                 dma_addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(mb));
1495                 rxdp[i].read.hdr_addr = 0;
1496                 rxdp[i].read.pkt_addr = dma_addr;
1497         }
1498
1499         /* Update rx tail regsiter */
1500         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_free_trigger);
1501
1502         rxq->rx_free_trigger =
1503                 (uint16_t)(rxq->rx_free_trigger + rxq->rx_free_thresh);
1504         if (rxq->rx_free_trigger >= rxq->nb_rx_desc)
1505                 rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
1506
1507         return 0;
1508 }
1509
1510 static inline uint16_t
1511 rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1512 {
1513         struct ice_rx_queue *rxq = (struct ice_rx_queue *)rx_queue;
1514         uint16_t nb_rx = 0;
1515         struct rte_eth_dev *dev;
1516
1517         if (!nb_pkts)
1518                 return 0;
1519
1520         if (rxq->rx_nb_avail)
1521                 return ice_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
1522
1523         nb_rx = (uint16_t)ice_rx_scan_hw_ring(rxq);
1524         rxq->rx_next_avail = 0;
1525         rxq->rx_nb_avail = nb_rx;
1526         rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_rx);
1527
1528         if (rxq->rx_tail > rxq->rx_free_trigger) {
1529                 if (ice_rx_alloc_bufs(rxq) != 0) {
1530                         uint16_t i, j;
1531
1532                         dev = ICE_VSI_TO_ETH_DEV(rxq->vsi);
1533                         dev->data->rx_mbuf_alloc_failed +=
1534                                 rxq->rx_free_thresh;
1535                         PMD_RX_LOG(DEBUG, "Rx mbuf alloc failed for "
1536                                    "port_id=%u, queue_id=%u",
1537                                    rxq->port_id, rxq->queue_id);
1538                         rxq->rx_nb_avail = 0;
1539                         rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx);
1540                         for (i = 0, j = rxq->rx_tail; i < nb_rx; i++, j++)
1541                                 rxq->sw_ring[j].mbuf = rxq->rx_stage[i];
1542
1543                         return 0;
1544                 }
1545         }
1546
1547         if (rxq->rx_tail >= rxq->nb_rx_desc)
1548                 rxq->rx_tail = 0;
1549
1550         if (rxq->rx_nb_avail)
1551                 return ice_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
1552
1553         return 0;
1554 }
1555
1556 static uint16_t
1557 ice_recv_pkts_bulk_alloc(void *rx_queue,
1558                          struct rte_mbuf **rx_pkts,
1559                          uint16_t nb_pkts)
1560 {
1561         uint16_t nb_rx = 0;
1562         uint16_t n;
1563         uint16_t count;
1564
1565         if (unlikely(nb_pkts == 0))
1566                 return nb_rx;
1567
1568         if (likely(nb_pkts <= ICE_RX_MAX_BURST))
1569                 return rx_recv_pkts(rx_queue, rx_pkts, nb_pkts);
1570
1571         while (nb_pkts) {
1572                 n = RTE_MIN(nb_pkts, ICE_RX_MAX_BURST);
1573                 count = rx_recv_pkts(rx_queue, &rx_pkts[nb_rx], n);
1574                 nb_rx = (uint16_t)(nb_rx + count);
1575                 nb_pkts = (uint16_t)(nb_pkts - count);
1576                 if (count < n)
1577                         break;
1578         }
1579
1580         return nb_rx;
1581 }
1582
1583 static uint16_t
1584 ice_recv_scattered_pkts(void *rx_queue,
1585                         struct rte_mbuf **rx_pkts,
1586                         uint16_t nb_pkts)
1587 {
1588         struct ice_rx_queue *rxq = rx_queue;
1589         volatile union ice_rx_flex_desc *rx_ring = rxq->rx_ring;
1590         volatile union ice_rx_flex_desc *rxdp;
1591         union ice_rx_flex_desc rxd;
1592         struct ice_rx_entry *sw_ring = rxq->sw_ring;
1593         struct ice_rx_entry *rxe;
1594         struct rte_mbuf *first_seg = rxq->pkt_first_seg;
1595         struct rte_mbuf *last_seg = rxq->pkt_last_seg;
1596         struct rte_mbuf *nmb; /* new allocated mbuf */
1597         struct rte_mbuf *rxm; /* pointer to store old mbuf in SW ring */
1598         uint16_t rx_id = rxq->rx_tail;
1599         uint16_t nb_rx = 0;
1600         uint16_t nb_hold = 0;
1601         uint16_t rx_packet_len;
1602         uint16_t rx_stat_err0;
1603         uint64_t dma_addr;
1604         uint64_t pkt_flags;
1605         uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
1606         struct rte_eth_dev *dev;
1607
1608         while (nb_rx < nb_pkts) {
1609                 rxdp = &rx_ring[rx_id];
1610                 rx_stat_err0 = rte_le_to_cpu_16(rxdp->wb.status_error0);
1611
1612                 /* Check the DD bit first */
1613                 if (!(rx_stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_DD_S)))
1614                         break;
1615
1616                 /* allocate mbuf */
1617                 nmb = rte_mbuf_raw_alloc(rxq->mp);
1618                 if (unlikely(!nmb)) {
1619                         dev = ICE_VSI_TO_ETH_DEV(rxq->vsi);
1620                         dev->data->rx_mbuf_alloc_failed++;
1621                         break;
1622                 }
1623                 rxd = *rxdp; /* copy descriptor in ring to temp variable*/
1624
1625                 nb_hold++;
1626                 rxe = &sw_ring[rx_id]; /* get corresponding mbuf in SW ring */
1627                 rx_id++;
1628                 if (unlikely(rx_id == rxq->nb_rx_desc))
1629                         rx_id = 0;
1630
1631                 /* Prefetch next mbuf */
1632                 rte_prefetch0(sw_ring[rx_id].mbuf);
1633
1634                 /**
1635                  * When next RX descriptor is on a cache line boundary,
1636                  * prefetch the next 4 RX descriptors and next 8 pointers
1637                  * to mbufs.
1638                  */
1639                 if ((rx_id & 0x3) == 0) {
1640                         rte_prefetch0(&rx_ring[rx_id]);
1641                         rte_prefetch0(&sw_ring[rx_id]);
1642                 }
1643
1644                 rxm = rxe->mbuf;
1645                 rxe->mbuf = nmb;
1646                 dma_addr =
1647                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
1648
1649                 /* Set data buffer address and data length of the mbuf */
1650                 rxdp->read.hdr_addr = 0;
1651                 rxdp->read.pkt_addr = dma_addr;
1652                 rx_packet_len = rte_le_to_cpu_16(rxd.wb.pkt_len) &
1653                                 ICE_RX_FLX_DESC_PKT_LEN_M;
1654                 rxm->data_len = rx_packet_len;
1655                 rxm->data_off = RTE_PKTMBUF_HEADROOM;
1656
1657                 /**
1658                  * If this is the first buffer of the received packet, set the
1659                  * pointer to the first mbuf of the packet and initialize its
1660                  * context. Otherwise, update the total length and the number
1661                  * of segments of the current scattered packet, and update the
1662                  * pointer to the last mbuf of the current packet.
1663                  */
1664                 if (!first_seg) {
1665                         first_seg = rxm;
1666                         first_seg->nb_segs = 1;
1667                         first_seg->pkt_len = rx_packet_len;
1668                 } else {
1669                         first_seg->pkt_len =
1670                                 (uint16_t)(first_seg->pkt_len +
1671                                            rx_packet_len);
1672                         first_seg->nb_segs++;
1673                         last_seg->next = rxm;
1674                 }
1675
1676                 /**
1677                  * If this is not the last buffer of the received packet,
1678                  * update the pointer to the last mbuf of the current scattered
1679                  * packet and continue to parse the RX ring.
1680                  */
1681                 if (!(rx_stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_EOF_S))) {
1682                         last_seg = rxm;
1683                         continue;
1684                 }
1685
1686                 /**
1687                  * This is the last buffer of the received packet. If the CRC
1688                  * is not stripped by the hardware:
1689                  *  - Subtract the CRC length from the total packet length.
1690                  *  - If the last buffer only contains the whole CRC or a part
1691                  *  of it, free the mbuf associated to the last buffer. If part
1692                  *  of the CRC is also contained in the previous mbuf, subtract
1693                  *  the length of that CRC part from the data length of the
1694                  *  previous mbuf.
1695                  */
1696                 rxm->next = NULL;
1697                 if (unlikely(rxq->crc_len > 0)) {
1698                         first_seg->pkt_len -= RTE_ETHER_CRC_LEN;
1699                         if (rx_packet_len <= RTE_ETHER_CRC_LEN) {
1700                                 rte_pktmbuf_free_seg(rxm);
1701                                 first_seg->nb_segs--;
1702                                 last_seg->data_len =
1703                                         (uint16_t)(last_seg->data_len -
1704                                         (RTE_ETHER_CRC_LEN - rx_packet_len));
1705                                 last_seg->next = NULL;
1706                         } else
1707                                 rxm->data_len = (uint16_t)(rx_packet_len -
1708                                                            RTE_ETHER_CRC_LEN);
1709                 }
1710
1711                 first_seg->port = rxq->port_id;
1712                 first_seg->ol_flags = 0;
1713                 first_seg->packet_type = ptype_tbl[ICE_RX_FLEX_DESC_PTYPE_M &
1714                         rte_le_to_cpu_16(rxd.wb.ptype_flex_flags0)];
1715                 ice_rxd_to_vlan_tci(first_seg, &rxd);
1716                 ice_rxd_to_pkt_fields(first_seg, &rxd);
1717                 pkt_flags = ice_rxd_error_to_pkt_flags(rx_stat_err0);
1718                 first_seg->ol_flags |= pkt_flags;
1719                 /* Prefetch data of first segment, if configured to do so. */
1720                 rte_prefetch0(RTE_PTR_ADD(first_seg->buf_addr,
1721                                           first_seg->data_off));
1722                 rx_pkts[nb_rx++] = first_seg;
1723                 first_seg = NULL;
1724         }
1725
1726         /* Record index of the next RX descriptor to probe. */
1727         rxq->rx_tail = rx_id;
1728         rxq->pkt_first_seg = first_seg;
1729         rxq->pkt_last_seg = last_seg;
1730
1731         /**
1732          * If the number of free RX descriptors is greater than the RX free
1733          * threshold of the queue, advance the Receive Descriptor Tail (RDT)
1734          * register. Update the RDT with the value of the last processed RX
1735          * descriptor minus 1, to guarantee that the RDT register is never
1736          * equal to the RDH register, which creates a "full" ring situtation
1737          * from the hardware point of view.
1738          */
1739         nb_hold = (uint16_t)(nb_hold + rxq->nb_rx_hold);
1740         if (nb_hold > rxq->rx_free_thresh) {
1741                 rx_id = (uint16_t)(rx_id == 0 ?
1742                                    (rxq->nb_rx_desc - 1) : (rx_id - 1));
1743                 /* write TAIL register */
1744                 ICE_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
1745                 nb_hold = 0;
1746         }
1747         rxq->nb_rx_hold = nb_hold;
1748
1749         /* return received packet in the burst */
1750         return nb_rx;
1751 }
1752
1753 const uint32_t *
1754 ice_dev_supported_ptypes_get(struct rte_eth_dev *dev)
1755 {
1756         struct ice_adapter *ad =
1757                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1758         const uint32_t *ptypes;
1759
1760         static const uint32_t ptypes_os[] = {
1761                 /* refers to ice_get_default_pkt_type() */
1762                 RTE_PTYPE_L2_ETHER,
1763                 RTE_PTYPE_L2_ETHER_TIMESYNC,
1764                 RTE_PTYPE_L2_ETHER_LLDP,
1765                 RTE_PTYPE_L2_ETHER_ARP,
1766                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
1767                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
1768                 RTE_PTYPE_L4_FRAG,
1769                 RTE_PTYPE_L4_ICMP,
1770                 RTE_PTYPE_L4_NONFRAG,
1771                 RTE_PTYPE_L4_SCTP,
1772                 RTE_PTYPE_L4_TCP,
1773                 RTE_PTYPE_L4_UDP,
1774                 RTE_PTYPE_TUNNEL_GRENAT,
1775                 RTE_PTYPE_TUNNEL_IP,
1776                 RTE_PTYPE_INNER_L2_ETHER,
1777                 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
1778                 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
1779                 RTE_PTYPE_INNER_L4_FRAG,
1780                 RTE_PTYPE_INNER_L4_ICMP,
1781                 RTE_PTYPE_INNER_L4_NONFRAG,
1782                 RTE_PTYPE_INNER_L4_SCTP,
1783                 RTE_PTYPE_INNER_L4_TCP,
1784                 RTE_PTYPE_INNER_L4_UDP,
1785                 RTE_PTYPE_UNKNOWN
1786         };
1787
1788         static const uint32_t ptypes_comms[] = {
1789                 /* refers to ice_get_default_pkt_type() */
1790                 RTE_PTYPE_L2_ETHER,
1791                 RTE_PTYPE_L2_ETHER_TIMESYNC,
1792                 RTE_PTYPE_L2_ETHER_LLDP,
1793                 RTE_PTYPE_L2_ETHER_ARP,
1794                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
1795                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
1796                 RTE_PTYPE_L4_FRAG,
1797                 RTE_PTYPE_L4_ICMP,
1798                 RTE_PTYPE_L4_NONFRAG,
1799                 RTE_PTYPE_L4_SCTP,
1800                 RTE_PTYPE_L4_TCP,
1801                 RTE_PTYPE_L4_UDP,
1802                 RTE_PTYPE_TUNNEL_GRENAT,
1803                 RTE_PTYPE_TUNNEL_IP,
1804                 RTE_PTYPE_INNER_L2_ETHER,
1805                 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
1806                 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
1807                 RTE_PTYPE_INNER_L4_FRAG,
1808                 RTE_PTYPE_INNER_L4_ICMP,
1809                 RTE_PTYPE_INNER_L4_NONFRAG,
1810                 RTE_PTYPE_INNER_L4_SCTP,
1811                 RTE_PTYPE_INNER_L4_TCP,
1812                 RTE_PTYPE_INNER_L4_UDP,
1813                 RTE_PTYPE_TUNNEL_GTPC,
1814                 RTE_PTYPE_TUNNEL_GTPU,
1815                 RTE_PTYPE_L2_ETHER_PPPOE,
1816                 RTE_PTYPE_UNKNOWN
1817         };
1818
1819         if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
1820                 ptypes = ptypes_comms;
1821         else
1822                 ptypes = ptypes_os;
1823
1824         if (dev->rx_pkt_burst == ice_recv_pkts ||
1825             dev->rx_pkt_burst == ice_recv_pkts_bulk_alloc ||
1826             dev->rx_pkt_burst == ice_recv_scattered_pkts)
1827                 return ptypes;
1828
1829 #ifdef RTE_ARCH_X86
1830         if (dev->rx_pkt_burst == ice_recv_pkts_vec ||
1831             dev->rx_pkt_burst == ice_recv_scattered_pkts_vec ||
1832             dev->rx_pkt_burst == ice_recv_pkts_vec_avx2 ||
1833             dev->rx_pkt_burst == ice_recv_scattered_pkts_vec_avx2)
1834                 return ptypes;
1835 #endif
1836
1837         return NULL;
1838 }
1839
1840 int
1841 ice_rx_descriptor_status(void *rx_queue, uint16_t offset)
1842 {
1843         volatile union ice_rx_flex_desc *rxdp;
1844         struct ice_rx_queue *rxq = rx_queue;
1845         uint32_t desc;
1846
1847         if (unlikely(offset >= rxq->nb_rx_desc))
1848                 return -EINVAL;
1849
1850         if (offset >= rxq->nb_rx_desc - rxq->nb_rx_hold)
1851                 return RTE_ETH_RX_DESC_UNAVAIL;
1852
1853         desc = rxq->rx_tail + offset;
1854         if (desc >= rxq->nb_rx_desc)
1855                 desc -= rxq->nb_rx_desc;
1856
1857         rxdp = &rxq->rx_ring[desc];
1858         if (rte_le_to_cpu_16(rxdp->wb.status_error0) &
1859             (1 << ICE_RX_FLEX_DESC_STATUS0_DD_S))
1860                 return RTE_ETH_RX_DESC_DONE;
1861
1862         return RTE_ETH_RX_DESC_AVAIL;
1863 }
1864
1865 int
1866 ice_tx_descriptor_status(void *tx_queue, uint16_t offset)
1867 {
1868         struct ice_tx_queue *txq = tx_queue;
1869         volatile uint64_t *status;
1870         uint64_t mask, expect;
1871         uint32_t desc;
1872
1873         if (unlikely(offset >= txq->nb_tx_desc))
1874                 return -EINVAL;
1875
1876         desc = txq->tx_tail + offset;
1877         /* go to next desc that has the RS bit */
1878         desc = ((desc + txq->tx_rs_thresh - 1) / txq->tx_rs_thresh) *
1879                 txq->tx_rs_thresh;
1880         if (desc >= txq->nb_tx_desc) {
1881                 desc -= txq->nb_tx_desc;
1882                 if (desc >= txq->nb_tx_desc)
1883                         desc -= txq->nb_tx_desc;
1884         }
1885
1886         status = &txq->tx_ring[desc].cmd_type_offset_bsz;
1887         mask = rte_cpu_to_le_64(ICE_TXD_QW1_DTYPE_M);
1888         expect = rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DESC_DONE <<
1889                                   ICE_TXD_QW1_DTYPE_S);
1890         if ((*status & mask) == expect)
1891                 return RTE_ETH_TX_DESC_DONE;
1892
1893         return RTE_ETH_TX_DESC_FULL;
1894 }
1895
1896 void
1897 ice_free_queues(struct rte_eth_dev *dev)
1898 {
1899         uint16_t i;
1900
1901         PMD_INIT_FUNC_TRACE();
1902
1903         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1904                 if (!dev->data->rx_queues[i])
1905                         continue;
1906                 ice_rx_queue_release(dev->data->rx_queues[i]);
1907                 dev->data->rx_queues[i] = NULL;
1908         }
1909         dev->data->nb_rx_queues = 0;
1910
1911         for (i = 0; i < dev->data->nb_tx_queues; i++) {
1912                 if (!dev->data->tx_queues[i])
1913                         continue;
1914                 ice_tx_queue_release(dev->data->tx_queues[i]);
1915                 dev->data->tx_queues[i] = NULL;
1916         }
1917         dev->data->nb_tx_queues = 0;
1918 }
1919
1920 #define ICE_FDIR_NUM_TX_DESC  ICE_MIN_RING_DESC
1921 #define ICE_FDIR_NUM_RX_DESC  ICE_MIN_RING_DESC
1922
1923 int
1924 ice_fdir_setup_tx_resources(struct ice_pf *pf)
1925 {
1926         struct ice_tx_queue *txq;
1927         const struct rte_memzone *tz = NULL;
1928         uint32_t ring_size;
1929         struct rte_eth_dev *dev;
1930
1931         if (!pf) {
1932                 PMD_DRV_LOG(ERR, "PF is not available");
1933                 return -EINVAL;
1934         }
1935
1936         dev = pf->adapter->eth_dev;
1937
1938         /* Allocate the TX queue data structure. */
1939         txq = rte_zmalloc_socket("ice fdir tx queue",
1940                                  sizeof(struct ice_tx_queue),
1941                                  RTE_CACHE_LINE_SIZE,
1942                                  SOCKET_ID_ANY);
1943         if (!txq) {
1944                 PMD_DRV_LOG(ERR, "Failed to allocate memory for "
1945                             "tx queue structure.");
1946                 return -ENOMEM;
1947         }
1948
1949         /* Allocate TX hardware ring descriptors. */
1950         ring_size = sizeof(struct ice_tx_desc) * ICE_FDIR_NUM_TX_DESC;
1951         ring_size = RTE_ALIGN(ring_size, ICE_DMA_MEM_ALIGN);
1952
1953         tz = rte_eth_dma_zone_reserve(dev, "fdir_tx_ring",
1954                                       ICE_FDIR_QUEUE_ID, ring_size,
1955                                       ICE_RING_BASE_ALIGN, SOCKET_ID_ANY);
1956         if (!tz) {
1957                 ice_tx_queue_release(txq);
1958                 PMD_DRV_LOG(ERR, "Failed to reserve DMA memory for TX.");
1959                 return -ENOMEM;
1960         }
1961
1962         txq->nb_tx_desc = ICE_FDIR_NUM_TX_DESC;
1963         txq->queue_id = ICE_FDIR_QUEUE_ID;
1964         txq->reg_idx = pf->fdir.fdir_vsi->base_queue;
1965         txq->vsi = pf->fdir.fdir_vsi;
1966
1967         txq->tx_ring_dma = tz->iova;
1968         txq->tx_ring = (struct ice_tx_desc *)tz->addr;
1969         /*
1970          * don't need to allocate software ring and reset for the fdir
1971          * program queue just set the queue has been configured.
1972          */
1973         txq->q_set = true;
1974         pf->fdir.txq = txq;
1975
1976         txq->tx_rel_mbufs = _ice_tx_queue_release_mbufs;
1977
1978         return ICE_SUCCESS;
1979 }
1980
1981 int
1982 ice_fdir_setup_rx_resources(struct ice_pf *pf)
1983 {
1984         struct ice_rx_queue *rxq;
1985         const struct rte_memzone *rz = NULL;
1986         uint32_t ring_size;
1987         struct rte_eth_dev *dev;
1988
1989         if (!pf) {
1990                 PMD_DRV_LOG(ERR, "PF is not available");
1991                 return -EINVAL;
1992         }
1993
1994         dev = pf->adapter->eth_dev;
1995
1996         /* Allocate the RX queue data structure. */
1997         rxq = rte_zmalloc_socket("ice fdir rx queue",
1998                                  sizeof(struct ice_rx_queue),
1999                                  RTE_CACHE_LINE_SIZE,
2000                                  SOCKET_ID_ANY);
2001         if (!rxq) {
2002                 PMD_DRV_LOG(ERR, "Failed to allocate memory for "
2003                             "rx queue structure.");
2004                 return -ENOMEM;
2005         }
2006
2007         /* Allocate RX hardware ring descriptors. */
2008         ring_size = sizeof(union ice_32byte_rx_desc) * ICE_FDIR_NUM_RX_DESC;
2009         ring_size = RTE_ALIGN(ring_size, ICE_DMA_MEM_ALIGN);
2010
2011         rz = rte_eth_dma_zone_reserve(dev, "fdir_rx_ring",
2012                                       ICE_FDIR_QUEUE_ID, ring_size,
2013                                       ICE_RING_BASE_ALIGN, SOCKET_ID_ANY);
2014         if (!rz) {
2015                 ice_rx_queue_release(rxq);
2016                 PMD_DRV_LOG(ERR, "Failed to reserve DMA memory for RX.");
2017                 return -ENOMEM;
2018         }
2019
2020         rxq->nb_rx_desc = ICE_FDIR_NUM_RX_DESC;
2021         rxq->queue_id = ICE_FDIR_QUEUE_ID;
2022         rxq->reg_idx = pf->fdir.fdir_vsi->base_queue;
2023         rxq->vsi = pf->fdir.fdir_vsi;
2024
2025         rxq->rx_ring_dma = rz->iova;
2026         memset(rz->addr, 0, ICE_FDIR_NUM_RX_DESC *
2027                sizeof(union ice_32byte_rx_desc));
2028         rxq->rx_ring = (union ice_rx_flex_desc *)rz->addr;
2029
2030         /*
2031          * Don't need to allocate software ring and reset for the fdir
2032          * rx queue, just set the queue has been configured.
2033          */
2034         rxq->q_set = true;
2035         pf->fdir.rxq = rxq;
2036
2037         rxq->rx_rel_mbufs = _ice_rx_queue_release_mbufs;
2038
2039         return ICE_SUCCESS;
2040 }
2041
2042 uint16_t
2043 ice_recv_pkts(void *rx_queue,
2044               struct rte_mbuf **rx_pkts,
2045               uint16_t nb_pkts)
2046 {
2047         struct ice_rx_queue *rxq = rx_queue;
2048         volatile union ice_rx_flex_desc *rx_ring = rxq->rx_ring;
2049         volatile union ice_rx_flex_desc *rxdp;
2050         union ice_rx_flex_desc rxd;
2051         struct ice_rx_entry *sw_ring = rxq->sw_ring;
2052         struct ice_rx_entry *rxe;
2053         struct rte_mbuf *nmb; /* new allocated mbuf */
2054         struct rte_mbuf *rxm; /* pointer to store old mbuf in SW ring */
2055         uint16_t rx_id = rxq->rx_tail;
2056         uint16_t nb_rx = 0;
2057         uint16_t nb_hold = 0;
2058         uint16_t rx_packet_len;
2059         uint16_t rx_stat_err0;
2060         uint64_t dma_addr;
2061         uint64_t pkt_flags;
2062         uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
2063         struct rte_eth_dev *dev;
2064
2065         while (nb_rx < nb_pkts) {
2066                 rxdp = &rx_ring[rx_id];
2067                 rx_stat_err0 = rte_le_to_cpu_16(rxdp->wb.status_error0);
2068
2069                 /* Check the DD bit first */
2070                 if (!(rx_stat_err0 & (1 << ICE_RX_FLEX_DESC_STATUS0_DD_S)))
2071                         break;
2072
2073                 /* allocate mbuf */
2074                 nmb = rte_mbuf_raw_alloc(rxq->mp);
2075                 if (unlikely(!nmb)) {
2076                         dev = ICE_VSI_TO_ETH_DEV(rxq->vsi);
2077                         dev->data->rx_mbuf_alloc_failed++;
2078                         break;
2079                 }
2080                 rxd = *rxdp; /* copy descriptor in ring to temp variable*/
2081
2082                 nb_hold++;
2083                 rxe = &sw_ring[rx_id]; /* get corresponding mbuf in SW ring */
2084                 rx_id++;
2085                 if (unlikely(rx_id == rxq->nb_rx_desc))
2086                         rx_id = 0;
2087                 rxm = rxe->mbuf;
2088                 rxe->mbuf = nmb;
2089                 dma_addr =
2090                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
2091
2092                 /**
2093                  * fill the read format of descriptor with physic address in
2094                  * new allocated mbuf: nmb
2095                  */
2096                 rxdp->read.hdr_addr = 0;
2097                 rxdp->read.pkt_addr = dma_addr;
2098
2099                 /* calculate rx_packet_len of the received pkt */
2100                 rx_packet_len = (rte_le_to_cpu_16(rxd.wb.pkt_len) &
2101                                  ICE_RX_FLX_DESC_PKT_LEN_M) - rxq->crc_len;
2102
2103                 /* fill old mbuf with received descriptor: rxd */
2104                 rxm->data_off = RTE_PKTMBUF_HEADROOM;
2105                 rte_prefetch0(RTE_PTR_ADD(rxm->buf_addr, RTE_PKTMBUF_HEADROOM));
2106                 rxm->nb_segs = 1;
2107                 rxm->next = NULL;
2108                 rxm->pkt_len = rx_packet_len;
2109                 rxm->data_len = rx_packet_len;
2110                 rxm->port = rxq->port_id;
2111                 rxm->packet_type = ptype_tbl[ICE_RX_FLEX_DESC_PTYPE_M &
2112                         rte_le_to_cpu_16(rxd.wb.ptype_flex_flags0)];
2113                 ice_rxd_to_vlan_tci(rxm, &rxd);
2114                 ice_rxd_to_pkt_fields(rxm, &rxd);
2115                 pkt_flags = ice_rxd_error_to_pkt_flags(rx_stat_err0);
2116                 rxm->ol_flags |= pkt_flags;
2117                 /* copy old mbuf to rx_pkts */
2118                 rx_pkts[nb_rx++] = rxm;
2119         }
2120         rxq->rx_tail = rx_id;
2121         /**
2122          * If the number of free RX descriptors is greater than the RX free
2123          * threshold of the queue, advance the receive tail register of queue.
2124          * Update that register with the value of the last processed RX
2125          * descriptor minus 1.
2126          */
2127         nb_hold = (uint16_t)(nb_hold + rxq->nb_rx_hold);
2128         if (nb_hold > rxq->rx_free_thresh) {
2129                 rx_id = (uint16_t)(rx_id == 0 ?
2130                                    (rxq->nb_rx_desc - 1) : (rx_id - 1));
2131                 /* write TAIL register */
2132                 ICE_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
2133                 nb_hold = 0;
2134         }
2135         rxq->nb_rx_hold = nb_hold;
2136
2137         /* return received packet in the burst */
2138         return nb_rx;
2139 }
2140
2141 static inline void
2142 ice_parse_tunneling_params(uint64_t ol_flags,
2143                             union ice_tx_offload tx_offload,
2144                             uint32_t *cd_tunneling)
2145 {
2146         /* EIPT: External (outer) IP header type */
2147         if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
2148                 *cd_tunneling |= ICE_TX_CTX_EIPT_IPV4;
2149         else if (ol_flags & PKT_TX_OUTER_IPV4)
2150                 *cd_tunneling |= ICE_TX_CTX_EIPT_IPV4_NO_CSUM;
2151         else if (ol_flags & PKT_TX_OUTER_IPV6)
2152                 *cd_tunneling |= ICE_TX_CTX_EIPT_IPV6;
2153
2154         /* EIPLEN: External (outer) IP header length, in DWords */
2155         *cd_tunneling |= (tx_offload.outer_l3_len >> 2) <<
2156                 ICE_TXD_CTX_QW0_EIPLEN_S;
2157
2158         /* L4TUNT: L4 Tunneling Type */
2159         switch (ol_flags & PKT_TX_TUNNEL_MASK) {
2160         case PKT_TX_TUNNEL_IPIP:
2161                 /* for non UDP / GRE tunneling, set to 00b */
2162                 break;
2163         case PKT_TX_TUNNEL_VXLAN:
2164         case PKT_TX_TUNNEL_GTP:
2165         case PKT_TX_TUNNEL_GENEVE:
2166                 *cd_tunneling |= ICE_TXD_CTX_UDP_TUNNELING;
2167                 break;
2168         case PKT_TX_TUNNEL_GRE:
2169                 *cd_tunneling |= ICE_TXD_CTX_GRE_TUNNELING;
2170                 break;
2171         default:
2172                 PMD_TX_LOG(ERR, "Tunnel type not supported");
2173                 return;
2174         }
2175
2176         /* L4TUNLEN: L4 Tunneling Length, in Words
2177          *
2178          * We depend on app to set rte_mbuf.l2_len correctly.
2179          * For IP in GRE it should be set to the length of the GRE
2180          * header;
2181          * For MAC in GRE or MAC in UDP it should be set to the length
2182          * of the GRE or UDP headers plus the inner MAC up to including
2183          * its last Ethertype.
2184          * If MPLS labels exists, it should include them as well.
2185          */
2186         *cd_tunneling |= (tx_offload.l2_len >> 1) <<
2187                 ICE_TXD_CTX_QW0_NATLEN_S;
2188
2189         if ((ol_flags & PKT_TX_OUTER_UDP_CKSUM) &&
2190             (ol_flags & PKT_TX_OUTER_IP_CKSUM) &&
2191             (*cd_tunneling & ICE_TXD_CTX_UDP_TUNNELING))
2192                 *cd_tunneling |= ICE_TXD_CTX_QW0_L4T_CS_M;
2193 }
2194
2195 static inline void
2196 ice_txd_enable_checksum(uint64_t ol_flags,
2197                         uint32_t *td_cmd,
2198                         uint32_t *td_offset,
2199                         union ice_tx_offload tx_offload)
2200 {
2201         /* Set MACLEN */
2202         if (ol_flags & PKT_TX_TUNNEL_MASK)
2203                 *td_offset |= (tx_offload.outer_l2_len >> 1)
2204                         << ICE_TX_DESC_LEN_MACLEN_S;
2205         else
2206                 *td_offset |= (tx_offload.l2_len >> 1)
2207                         << ICE_TX_DESC_LEN_MACLEN_S;
2208
2209         /* Enable L3 checksum offloads */
2210         if (ol_flags & PKT_TX_IP_CKSUM) {
2211                 *td_cmd |= ICE_TX_DESC_CMD_IIPT_IPV4_CSUM;
2212                 *td_offset |= (tx_offload.l3_len >> 2) <<
2213                               ICE_TX_DESC_LEN_IPLEN_S;
2214         } else if (ol_flags & PKT_TX_IPV4) {
2215                 *td_cmd |= ICE_TX_DESC_CMD_IIPT_IPV4;
2216                 *td_offset |= (tx_offload.l3_len >> 2) <<
2217                               ICE_TX_DESC_LEN_IPLEN_S;
2218         } else if (ol_flags & PKT_TX_IPV6) {
2219                 *td_cmd |= ICE_TX_DESC_CMD_IIPT_IPV6;
2220                 *td_offset |= (tx_offload.l3_len >> 2) <<
2221                               ICE_TX_DESC_LEN_IPLEN_S;
2222         }
2223
2224         if (ol_flags & PKT_TX_TCP_SEG) {
2225                 *td_cmd |= ICE_TX_DESC_CMD_L4T_EOFT_TCP;
2226                 *td_offset |= (tx_offload.l4_len >> 2) <<
2227                               ICE_TX_DESC_LEN_L4_LEN_S;
2228                 return;
2229         }
2230
2231         /* Enable L4 checksum offloads */
2232         switch (ol_flags & PKT_TX_L4_MASK) {
2233         case PKT_TX_TCP_CKSUM:
2234                 *td_cmd |= ICE_TX_DESC_CMD_L4T_EOFT_TCP;
2235                 *td_offset |= (sizeof(struct rte_tcp_hdr) >> 2) <<
2236                               ICE_TX_DESC_LEN_L4_LEN_S;
2237                 break;
2238         case PKT_TX_SCTP_CKSUM:
2239                 *td_cmd |= ICE_TX_DESC_CMD_L4T_EOFT_SCTP;
2240                 *td_offset |= (sizeof(struct rte_sctp_hdr) >> 2) <<
2241                               ICE_TX_DESC_LEN_L4_LEN_S;
2242                 break;
2243         case PKT_TX_UDP_CKSUM:
2244                 *td_cmd |= ICE_TX_DESC_CMD_L4T_EOFT_UDP;
2245                 *td_offset |= (sizeof(struct rte_udp_hdr) >> 2) <<
2246                               ICE_TX_DESC_LEN_L4_LEN_S;
2247                 break;
2248         default:
2249                 break;
2250         }
2251 }
2252
2253 static inline int
2254 ice_xmit_cleanup(struct ice_tx_queue *txq)
2255 {
2256         struct ice_tx_entry *sw_ring = txq->sw_ring;
2257         volatile struct ice_tx_desc *txd = txq->tx_ring;
2258         uint16_t last_desc_cleaned = txq->last_desc_cleaned;
2259         uint16_t nb_tx_desc = txq->nb_tx_desc;
2260         uint16_t desc_to_clean_to;
2261         uint16_t nb_tx_to_clean;
2262
2263         /* Determine the last descriptor needing to be cleaned */
2264         desc_to_clean_to = (uint16_t)(last_desc_cleaned + txq->tx_rs_thresh);
2265         if (desc_to_clean_to >= nb_tx_desc)
2266                 desc_to_clean_to = (uint16_t)(desc_to_clean_to - nb_tx_desc);
2267
2268         /* Check to make sure the last descriptor to clean is done */
2269         desc_to_clean_to = sw_ring[desc_to_clean_to].last_id;
2270         if (!(txd[desc_to_clean_to].cmd_type_offset_bsz &
2271             rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DESC_DONE))) {
2272                 PMD_TX_FREE_LOG(DEBUG, "TX descriptor %4u is not done "
2273                                 "(port=%d queue=%d) value=0x%"PRIx64"\n",
2274                                 desc_to_clean_to,
2275                                 txq->port_id, txq->queue_id,
2276                                 txd[desc_to_clean_to].cmd_type_offset_bsz);
2277                 /* Failed to clean any descriptors */
2278                 return -1;
2279         }
2280
2281         /* Figure out how many descriptors will be cleaned */
2282         if (last_desc_cleaned > desc_to_clean_to)
2283                 nb_tx_to_clean = (uint16_t)((nb_tx_desc - last_desc_cleaned) +
2284                                             desc_to_clean_to);
2285         else
2286                 nb_tx_to_clean = (uint16_t)(desc_to_clean_to -
2287                                             last_desc_cleaned);
2288
2289         /* The last descriptor to clean is done, so that means all the
2290          * descriptors from the last descriptor that was cleaned
2291          * up to the last descriptor with the RS bit set
2292          * are done. Only reset the threshold descriptor.
2293          */
2294         txd[desc_to_clean_to].cmd_type_offset_bsz = 0;
2295
2296         /* Update the txq to reflect the last descriptor that was cleaned */
2297         txq->last_desc_cleaned = desc_to_clean_to;
2298         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + nb_tx_to_clean);
2299
2300         return 0;
2301 }
2302
2303 /* Construct the tx flags */
2304 static inline uint64_t
2305 ice_build_ctob(uint32_t td_cmd,
2306                uint32_t td_offset,
2307                uint16_t size,
2308                uint32_t td_tag)
2309 {
2310         return rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DATA |
2311                                 ((uint64_t)td_cmd << ICE_TXD_QW1_CMD_S) |
2312                                 ((uint64_t)td_offset << ICE_TXD_QW1_OFFSET_S) |
2313                                 ((uint64_t)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
2314                                 ((uint64_t)td_tag << ICE_TXD_QW1_L2TAG1_S));
2315 }
2316
2317 /* Check if the context descriptor is needed for TX offloading */
2318 static inline uint16_t
2319 ice_calc_context_desc(uint64_t flags)
2320 {
2321         static uint64_t mask = PKT_TX_TCP_SEG |
2322                 PKT_TX_QINQ |
2323                 PKT_TX_OUTER_IP_CKSUM |
2324                 PKT_TX_TUNNEL_MASK;
2325
2326         return (flags & mask) ? 1 : 0;
2327 }
2328
2329 /* set ice TSO context descriptor */
2330 static inline uint64_t
2331 ice_set_tso_ctx(struct rte_mbuf *mbuf, union ice_tx_offload tx_offload)
2332 {
2333         uint64_t ctx_desc = 0;
2334         uint32_t cd_cmd, hdr_len, cd_tso_len;
2335
2336         if (!tx_offload.l4_len) {
2337                 PMD_TX_LOG(DEBUG, "L4 length set to 0");
2338                 return ctx_desc;
2339         }
2340
2341         hdr_len = tx_offload.l2_len + tx_offload.l3_len + tx_offload.l4_len;
2342         hdr_len += (mbuf->ol_flags & PKT_TX_TUNNEL_MASK) ?
2343                    tx_offload.outer_l2_len + tx_offload.outer_l3_len : 0;
2344
2345         cd_cmd = ICE_TX_CTX_DESC_TSO;
2346         cd_tso_len = mbuf->pkt_len - hdr_len;
2347         ctx_desc |= ((uint64_t)cd_cmd << ICE_TXD_CTX_QW1_CMD_S) |
2348                     ((uint64_t)cd_tso_len << ICE_TXD_CTX_QW1_TSO_LEN_S) |
2349                     ((uint64_t)mbuf->tso_segsz << ICE_TXD_CTX_QW1_MSS_S);
2350
2351         return ctx_desc;
2352 }
2353
2354 /* HW requires that TX buffer size ranges from 1B up to (16K-1)B. */
2355 #define ICE_MAX_DATA_PER_TXD \
2356         (ICE_TXD_QW1_TX_BUF_SZ_M >> ICE_TXD_QW1_TX_BUF_SZ_S)
2357 /* Calculate the number of TX descriptors needed for each pkt */
2358 static inline uint16_t
2359 ice_calc_pkt_desc(struct rte_mbuf *tx_pkt)
2360 {
2361         struct rte_mbuf *txd = tx_pkt;
2362         uint16_t count = 0;
2363
2364         while (txd != NULL) {
2365                 count += DIV_ROUND_UP(txd->data_len, ICE_MAX_DATA_PER_TXD);
2366                 txd = txd->next;
2367         }
2368
2369         return count;
2370 }
2371
2372 uint16_t
2373 ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2374 {
2375         struct ice_tx_queue *txq;
2376         volatile struct ice_tx_desc *tx_ring;
2377         volatile struct ice_tx_desc *txd;
2378         struct ice_tx_entry *sw_ring;
2379         struct ice_tx_entry *txe, *txn;
2380         struct rte_mbuf *tx_pkt;
2381         struct rte_mbuf *m_seg;
2382         uint32_t cd_tunneling_params;
2383         uint16_t tx_id;
2384         uint16_t nb_tx;
2385         uint16_t nb_used;
2386         uint16_t nb_ctx;
2387         uint32_t td_cmd = 0;
2388         uint32_t td_offset = 0;
2389         uint32_t td_tag = 0;
2390         uint16_t tx_last;
2391         uint16_t slen;
2392         uint64_t buf_dma_addr;
2393         uint64_t ol_flags;
2394         union ice_tx_offload tx_offload = {0};
2395
2396         txq = tx_queue;
2397         sw_ring = txq->sw_ring;
2398         tx_ring = txq->tx_ring;
2399         tx_id = txq->tx_tail;
2400         txe = &sw_ring[tx_id];
2401
2402         /* Check if the descriptor ring needs to be cleaned. */
2403         if (txq->nb_tx_free < txq->tx_free_thresh)
2404                 (void)ice_xmit_cleanup(txq);
2405
2406         for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) {
2407                 tx_pkt = *tx_pkts++;
2408
2409                 td_cmd = 0;
2410                 ol_flags = tx_pkt->ol_flags;
2411                 tx_offload.l2_len = tx_pkt->l2_len;
2412                 tx_offload.l3_len = tx_pkt->l3_len;
2413                 tx_offload.outer_l2_len = tx_pkt->outer_l2_len;
2414                 tx_offload.outer_l3_len = tx_pkt->outer_l3_len;
2415                 tx_offload.l4_len = tx_pkt->l4_len;
2416                 tx_offload.tso_segsz = tx_pkt->tso_segsz;
2417                 /* Calculate the number of context descriptors needed. */
2418                 nb_ctx = ice_calc_context_desc(ol_flags);
2419
2420                 /* The number of descriptors that must be allocated for
2421                  * a packet equals to the number of the segments of that
2422                  * packet plus the number of context descriptor if needed.
2423                  * Recalculate the needed tx descs when TSO enabled in case
2424                  * the mbuf data size exceeds max data size that hw allows
2425                  * per tx desc.
2426                  */
2427                 if (ol_flags & PKT_TX_TCP_SEG)
2428                         nb_used = (uint16_t)(ice_calc_pkt_desc(tx_pkt) +
2429                                              nb_ctx);
2430                 else
2431                         nb_used = (uint16_t)(tx_pkt->nb_segs + nb_ctx);
2432                 tx_last = (uint16_t)(tx_id + nb_used - 1);
2433
2434                 /* Circular ring */
2435                 if (tx_last >= txq->nb_tx_desc)
2436                         tx_last = (uint16_t)(tx_last - txq->nb_tx_desc);
2437
2438                 if (nb_used > txq->nb_tx_free) {
2439                         if (ice_xmit_cleanup(txq) != 0) {
2440                                 if (nb_tx == 0)
2441                                         return 0;
2442                                 goto end_of_tx;
2443                         }
2444                         if (unlikely(nb_used > txq->tx_rs_thresh)) {
2445                                 while (nb_used > txq->nb_tx_free) {
2446                                         if (ice_xmit_cleanup(txq) != 0) {
2447                                                 if (nb_tx == 0)
2448                                                         return 0;
2449                                                 goto end_of_tx;
2450                                         }
2451                                 }
2452                         }
2453                 }
2454
2455                 /* Descriptor based VLAN insertion */
2456                 if (ol_flags & (PKT_TX_VLAN | PKT_TX_QINQ)) {
2457                         td_cmd |= ICE_TX_DESC_CMD_IL2TAG1;
2458                         td_tag = tx_pkt->vlan_tci;
2459                 }
2460
2461                 /* Fill in tunneling parameters if necessary */
2462                 cd_tunneling_params = 0;
2463                 if (ol_flags & PKT_TX_TUNNEL_MASK)
2464                         ice_parse_tunneling_params(ol_flags, tx_offload,
2465                                                    &cd_tunneling_params);
2466
2467                 /* Enable checksum offloading */
2468                 if (ol_flags & ICE_TX_CKSUM_OFFLOAD_MASK) {
2469                         ice_txd_enable_checksum(ol_flags, &td_cmd,
2470                                                 &td_offset, tx_offload);
2471                 }
2472
2473                 if (nb_ctx) {
2474                         /* Setup TX context descriptor if required */
2475                         volatile struct ice_tx_ctx_desc *ctx_txd =
2476                                 (volatile struct ice_tx_ctx_desc *)
2477                                         &tx_ring[tx_id];
2478                         uint16_t cd_l2tag2 = 0;
2479                         uint64_t cd_type_cmd_tso_mss = ICE_TX_DESC_DTYPE_CTX;
2480
2481                         txn = &sw_ring[txe->next_id];
2482                         RTE_MBUF_PREFETCH_TO_FREE(txn->mbuf);
2483                         if (txe->mbuf) {
2484                                 rte_pktmbuf_free_seg(txe->mbuf);
2485                                 txe->mbuf = NULL;
2486                         }
2487
2488                         if (ol_flags & PKT_TX_TCP_SEG)
2489                                 cd_type_cmd_tso_mss |=
2490                                         ice_set_tso_ctx(tx_pkt, tx_offload);
2491
2492                         ctx_txd->tunneling_params =
2493                                 rte_cpu_to_le_32(cd_tunneling_params);
2494
2495                         /* TX context descriptor based double VLAN insert */
2496                         if (ol_flags & PKT_TX_QINQ) {
2497                                 cd_l2tag2 = tx_pkt->vlan_tci_outer;
2498                                 cd_type_cmd_tso_mss |=
2499                                         ((uint64_t)ICE_TX_CTX_DESC_IL2TAG2 <<
2500                                          ICE_TXD_CTX_QW1_CMD_S);
2501                         }
2502                         ctx_txd->l2tag2 = rte_cpu_to_le_16(cd_l2tag2);
2503                         ctx_txd->qw1 =
2504                                 rte_cpu_to_le_64(cd_type_cmd_tso_mss);
2505
2506                         txe->last_id = tx_last;
2507                         tx_id = txe->next_id;
2508                         txe = txn;
2509                 }
2510                 m_seg = tx_pkt;
2511
2512                 do {
2513                         txd = &tx_ring[tx_id];
2514                         txn = &sw_ring[txe->next_id];
2515
2516                         if (txe->mbuf)
2517                                 rte_pktmbuf_free_seg(txe->mbuf);
2518                         txe->mbuf = m_seg;
2519
2520                         /* Setup TX Descriptor */
2521                         slen = m_seg->data_len;
2522                         buf_dma_addr = rte_mbuf_data_iova(m_seg);
2523
2524                         while ((ol_flags & PKT_TX_TCP_SEG) &&
2525                                 unlikely(slen > ICE_MAX_DATA_PER_TXD)) {
2526                                 txd->buf_addr = rte_cpu_to_le_64(buf_dma_addr);
2527                                 txd->cmd_type_offset_bsz =
2528                                 rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DATA |
2529                                 ((uint64_t)td_cmd << ICE_TXD_QW1_CMD_S) |
2530                                 ((uint64_t)td_offset << ICE_TXD_QW1_OFFSET_S) |
2531                                 ((uint64_t)ICE_MAX_DATA_PER_TXD <<
2532                                  ICE_TXD_QW1_TX_BUF_SZ_S) |
2533                                 ((uint64_t)td_tag << ICE_TXD_QW1_L2TAG1_S));
2534
2535                                 buf_dma_addr += ICE_MAX_DATA_PER_TXD;
2536                                 slen -= ICE_MAX_DATA_PER_TXD;
2537
2538                                 txe->last_id = tx_last;
2539                                 tx_id = txe->next_id;
2540                                 txe = txn;
2541                                 txd = &tx_ring[tx_id];
2542                                 txn = &sw_ring[txe->next_id];
2543                         }
2544
2545                         txd->buf_addr = rte_cpu_to_le_64(buf_dma_addr);
2546                         txd->cmd_type_offset_bsz =
2547                                 rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DATA |
2548                                 ((uint64_t)td_cmd << ICE_TXD_QW1_CMD_S) |
2549                                 ((uint64_t)td_offset << ICE_TXD_QW1_OFFSET_S) |
2550                                 ((uint64_t)slen << ICE_TXD_QW1_TX_BUF_SZ_S) |
2551                                 ((uint64_t)td_tag << ICE_TXD_QW1_L2TAG1_S));
2552
2553                         txe->last_id = tx_last;
2554                         tx_id = txe->next_id;
2555                         txe = txn;
2556                         m_seg = m_seg->next;
2557                 } while (m_seg);
2558
2559                 /* fill the last descriptor with End of Packet (EOP) bit */
2560                 td_cmd |= ICE_TX_DESC_CMD_EOP;
2561                 txq->nb_tx_used = (uint16_t)(txq->nb_tx_used + nb_used);
2562                 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_used);
2563
2564                 /* set RS bit on the last descriptor of one packet */
2565                 if (txq->nb_tx_used >= txq->tx_rs_thresh) {
2566                         PMD_TX_FREE_LOG(DEBUG,
2567                                         "Setting RS bit on TXD id="
2568                                         "%4u (port=%d queue=%d)",
2569                                         tx_last, txq->port_id, txq->queue_id);
2570
2571                         td_cmd |= ICE_TX_DESC_CMD_RS;
2572
2573                         /* Update txq RS bit counters */
2574                         txq->nb_tx_used = 0;
2575                 }
2576                 txd->cmd_type_offset_bsz |=
2577                         rte_cpu_to_le_64(((uint64_t)td_cmd) <<
2578                                          ICE_TXD_QW1_CMD_S);
2579         }
2580 end_of_tx:
2581         /* update Tail register */
2582         ICE_PCI_REG_WRITE(txq->qtx_tail, tx_id);
2583         txq->tx_tail = tx_id;
2584
2585         return nb_tx;
2586 }
2587
2588 static inline int __attribute__((always_inline))
2589 ice_tx_free_bufs(struct ice_tx_queue *txq)
2590 {
2591         struct ice_tx_entry *txep;
2592         uint16_t i;
2593
2594         if ((txq->tx_ring[txq->tx_next_dd].cmd_type_offset_bsz &
2595              rte_cpu_to_le_64(ICE_TXD_QW1_DTYPE_M)) !=
2596             rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DESC_DONE))
2597                 return 0;
2598
2599         txep = &txq->sw_ring[txq->tx_next_dd - (txq->tx_rs_thresh - 1)];
2600
2601         for (i = 0; i < txq->tx_rs_thresh; i++)
2602                 rte_prefetch0((txep + i)->mbuf);
2603
2604         if (txq->offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE) {
2605                 for (i = 0; i < txq->tx_rs_thresh; ++i, ++txep) {
2606                         rte_mempool_put(txep->mbuf->pool, txep->mbuf);
2607                         txep->mbuf = NULL;
2608                 }
2609         } else {
2610                 for (i = 0; i < txq->tx_rs_thresh; ++i, ++txep) {
2611                         rte_pktmbuf_free_seg(txep->mbuf);
2612                         txep->mbuf = NULL;
2613                 }
2614         }
2615
2616         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh);
2617         txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh);
2618         if (txq->tx_next_dd >= txq->nb_tx_desc)
2619                 txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
2620
2621         return txq->tx_rs_thresh;
2622 }
2623
2624 static int
2625 ice_tx_done_cleanup_full(struct ice_tx_queue *txq,
2626                         uint32_t free_cnt)
2627 {
2628         struct ice_tx_entry *swr_ring = txq->sw_ring;
2629         uint16_t i, tx_last, tx_id;
2630         uint16_t nb_tx_free_last;
2631         uint16_t nb_tx_to_clean;
2632         uint32_t pkt_cnt;
2633
2634         /* Start free mbuf from the next of tx_tail */
2635         tx_last = txq->tx_tail;
2636         tx_id  = swr_ring[tx_last].next_id;
2637
2638         if (txq->nb_tx_free == 0 && ice_xmit_cleanup(txq))
2639                 return 0;
2640
2641         nb_tx_to_clean = txq->nb_tx_free;
2642         nb_tx_free_last = txq->nb_tx_free;
2643         if (!free_cnt)
2644                 free_cnt = txq->nb_tx_desc;
2645
2646         /* Loop through swr_ring to count the amount of
2647          * freeable mubfs and packets.
2648          */
2649         for (pkt_cnt = 0; pkt_cnt < free_cnt; ) {
2650                 for (i = 0; i < nb_tx_to_clean &&
2651                         pkt_cnt < free_cnt &&
2652                         tx_id != tx_last; i++) {
2653                         if (swr_ring[tx_id].mbuf != NULL) {
2654                                 rte_pktmbuf_free_seg(swr_ring[tx_id].mbuf);
2655                                 swr_ring[tx_id].mbuf = NULL;
2656
2657                                 /*
2658                                  * last segment in the packet,
2659                                  * increment packet count
2660                                  */
2661                                 pkt_cnt += (swr_ring[tx_id].last_id == tx_id);
2662                         }
2663
2664                         tx_id = swr_ring[tx_id].next_id;
2665                 }
2666
2667                 if (txq->tx_rs_thresh > txq->nb_tx_desc -
2668                         txq->nb_tx_free || tx_id == tx_last)
2669                         break;
2670
2671                 if (pkt_cnt < free_cnt) {
2672                         if (ice_xmit_cleanup(txq))
2673                                 break;
2674
2675                         nb_tx_to_clean = txq->nb_tx_free - nb_tx_free_last;
2676                         nb_tx_free_last = txq->nb_tx_free;
2677                 }
2678         }
2679
2680         return (int)pkt_cnt;
2681 }
2682
2683 #ifdef RTE_ARCH_X86
2684 static int
2685 ice_tx_done_cleanup_vec(struct ice_tx_queue *txq __rte_unused,
2686                         uint32_t free_cnt __rte_unused)
2687 {
2688         return -ENOTSUP;
2689 }
2690 #endif
2691
2692 static int
2693 ice_tx_done_cleanup_simple(struct ice_tx_queue *txq,
2694                         uint32_t free_cnt)
2695 {
2696         int i, n, cnt;
2697
2698         if (free_cnt == 0 || free_cnt > txq->nb_tx_desc)
2699                 free_cnt = txq->nb_tx_desc;
2700
2701         cnt = free_cnt - free_cnt % txq->tx_rs_thresh;
2702
2703         for (i = 0; i < cnt; i += n) {
2704                 if (txq->nb_tx_desc - txq->nb_tx_free < txq->tx_rs_thresh)
2705                         break;
2706
2707                 n = ice_tx_free_bufs(txq);
2708
2709                 if (n == 0)
2710                         break;
2711         }
2712
2713         return i;
2714 }
2715
2716 int
2717 ice_tx_done_cleanup(void *txq, uint32_t free_cnt)
2718 {
2719         struct ice_tx_queue *q = (struct ice_tx_queue *)txq;
2720         struct rte_eth_dev *dev = &rte_eth_devices[q->port_id];
2721         struct ice_adapter *ad =
2722                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
2723
2724 #ifdef RTE_ARCH_X86
2725         if (ad->tx_vec_allowed)
2726                 return ice_tx_done_cleanup_vec(q, free_cnt);
2727 #endif
2728         if (ad->tx_simple_allowed)
2729                 return ice_tx_done_cleanup_simple(q, free_cnt);
2730         else
2731                 return ice_tx_done_cleanup_full(q, free_cnt);
2732 }
2733
2734 /* Populate 4 descriptors with data from 4 mbufs */
2735 static inline void
2736 tx4(volatile struct ice_tx_desc *txdp, struct rte_mbuf **pkts)
2737 {
2738         uint64_t dma_addr;
2739         uint32_t i;
2740
2741         for (i = 0; i < 4; i++, txdp++, pkts++) {
2742                 dma_addr = rte_mbuf_data_iova(*pkts);
2743                 txdp->buf_addr = rte_cpu_to_le_64(dma_addr);
2744                 txdp->cmd_type_offset_bsz =
2745                         ice_build_ctob((uint32_t)ICE_TD_CMD, 0,
2746                                        (*pkts)->data_len, 0);
2747         }
2748 }
2749
2750 /* Populate 1 descriptor with data from 1 mbuf */
2751 static inline void
2752 tx1(volatile struct ice_tx_desc *txdp, struct rte_mbuf **pkts)
2753 {
2754         uint64_t dma_addr;
2755
2756         dma_addr = rte_mbuf_data_iova(*pkts);
2757         txdp->buf_addr = rte_cpu_to_le_64(dma_addr);
2758         txdp->cmd_type_offset_bsz =
2759                 ice_build_ctob((uint32_t)ICE_TD_CMD, 0,
2760                                (*pkts)->data_len, 0);
2761 }
2762
2763 static inline void
2764 ice_tx_fill_hw_ring(struct ice_tx_queue *txq, struct rte_mbuf **pkts,
2765                     uint16_t nb_pkts)
2766 {
2767         volatile struct ice_tx_desc *txdp = &txq->tx_ring[txq->tx_tail];
2768         struct ice_tx_entry *txep = &txq->sw_ring[txq->tx_tail];
2769         const int N_PER_LOOP = 4;
2770         const int N_PER_LOOP_MASK = N_PER_LOOP - 1;
2771         int mainpart, leftover;
2772         int i, j;
2773
2774         /**
2775          * Process most of the packets in chunks of N pkts.  Any
2776          * leftover packets will get processed one at a time.
2777          */
2778         mainpart = nb_pkts & ((uint32_t)~N_PER_LOOP_MASK);
2779         leftover = nb_pkts & ((uint32_t)N_PER_LOOP_MASK);
2780         for (i = 0; i < mainpart; i += N_PER_LOOP) {
2781                 /* Copy N mbuf pointers to the S/W ring */
2782                 for (j = 0; j < N_PER_LOOP; ++j)
2783                         (txep + i + j)->mbuf = *(pkts + i + j);
2784                 tx4(txdp + i, pkts + i);
2785         }
2786
2787         if (unlikely(leftover > 0)) {
2788                 for (i = 0; i < leftover; ++i) {
2789                         (txep + mainpart + i)->mbuf = *(pkts + mainpart + i);
2790                         tx1(txdp + mainpart + i, pkts + mainpart + i);
2791                 }
2792         }
2793 }
2794
2795 static inline uint16_t
2796 tx_xmit_pkts(struct ice_tx_queue *txq,
2797              struct rte_mbuf **tx_pkts,
2798              uint16_t nb_pkts)
2799 {
2800         volatile struct ice_tx_desc *txr = txq->tx_ring;
2801         uint16_t n = 0;
2802
2803         /**
2804          * Begin scanning the H/W ring for done descriptors when the number
2805          * of available descriptors drops below tx_free_thresh. For each done
2806          * descriptor, free the associated buffer.
2807          */
2808         if (txq->nb_tx_free < txq->tx_free_thresh)
2809                 ice_tx_free_bufs(txq);
2810
2811         /* Use available descriptor only */
2812         nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
2813         if (unlikely(!nb_pkts))
2814                 return 0;
2815
2816         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
2817         if ((txq->tx_tail + nb_pkts) > txq->nb_tx_desc) {
2818                 n = (uint16_t)(txq->nb_tx_desc - txq->tx_tail);
2819                 ice_tx_fill_hw_ring(txq, tx_pkts, n);
2820                 txr[txq->tx_next_rs].cmd_type_offset_bsz |=
2821                         rte_cpu_to_le_64(((uint64_t)ICE_TX_DESC_CMD_RS) <<
2822                                          ICE_TXD_QW1_CMD_S);
2823                 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
2824                 txq->tx_tail = 0;
2825         }
2826
2827         /* Fill hardware descriptor ring with mbuf data */
2828         ice_tx_fill_hw_ring(txq, tx_pkts + n, (uint16_t)(nb_pkts - n));
2829         txq->tx_tail = (uint16_t)(txq->tx_tail + (nb_pkts - n));
2830
2831         /* Determin if RS bit needs to be set */
2832         if (txq->tx_tail > txq->tx_next_rs) {
2833                 txr[txq->tx_next_rs].cmd_type_offset_bsz |=
2834                         rte_cpu_to_le_64(((uint64_t)ICE_TX_DESC_CMD_RS) <<
2835                                          ICE_TXD_QW1_CMD_S);
2836                 txq->tx_next_rs =
2837                         (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh);
2838                 if (txq->tx_next_rs >= txq->nb_tx_desc)
2839                         txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
2840         }
2841
2842         if (txq->tx_tail >= txq->nb_tx_desc)
2843                 txq->tx_tail = 0;
2844
2845         /* Update the tx tail register */
2846         ICE_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
2847
2848         return nb_pkts;
2849 }
2850
2851 static uint16_t
2852 ice_xmit_pkts_simple(void *tx_queue,
2853                      struct rte_mbuf **tx_pkts,
2854                      uint16_t nb_pkts)
2855 {
2856         uint16_t nb_tx = 0;
2857
2858         if (likely(nb_pkts <= ICE_TX_MAX_BURST))
2859                 return tx_xmit_pkts((struct ice_tx_queue *)tx_queue,
2860                                     tx_pkts, nb_pkts);
2861
2862         while (nb_pkts) {
2863                 uint16_t ret, num = (uint16_t)RTE_MIN(nb_pkts,
2864                                                       ICE_TX_MAX_BURST);
2865
2866                 ret = tx_xmit_pkts((struct ice_tx_queue *)tx_queue,
2867                                    &tx_pkts[nb_tx], num);
2868                 nb_tx = (uint16_t)(nb_tx + ret);
2869                 nb_pkts = (uint16_t)(nb_pkts - ret);
2870                 if (ret < num)
2871                         break;
2872         }
2873
2874         return nb_tx;
2875 }
2876
2877 void __attribute__((cold))
2878 ice_set_rx_function(struct rte_eth_dev *dev)
2879 {
2880         PMD_INIT_FUNC_TRACE();
2881         struct ice_adapter *ad =
2882                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
2883 #ifdef RTE_ARCH_X86
2884         struct ice_rx_queue *rxq;
2885         int i;
2886         bool use_avx2 = false;
2887
2888         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
2889                 if (!ice_rx_vec_dev_check(dev) && ad->rx_bulk_alloc_allowed) {
2890                         ad->rx_vec_allowed = true;
2891                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
2892                                 rxq = dev->data->rx_queues[i];
2893                                 if (rxq && ice_rxq_vec_setup(rxq)) {
2894                                         ad->rx_vec_allowed = false;
2895                                         break;
2896                                 }
2897                         }
2898
2899                         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
2900                         rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1)
2901                                 use_avx2 = true;
2902
2903                 } else {
2904                         ad->rx_vec_allowed = false;
2905                 }
2906         }
2907
2908         if (ad->rx_vec_allowed) {
2909                 if (dev->data->scattered_rx) {
2910                         PMD_DRV_LOG(DEBUG,
2911                                         "Using %sVector Scattered Rx (port %d).",
2912                                         use_avx2 ? "avx2 " : "",
2913                                         dev->data->port_id);
2914                         dev->rx_pkt_burst = use_avx2 ?
2915                                         ice_recv_scattered_pkts_vec_avx2 :
2916                                         ice_recv_scattered_pkts_vec;
2917                 } else {
2918                         PMD_DRV_LOG(DEBUG, "Using %sVector Rx (port %d).",
2919                                         use_avx2 ? "avx2 " : "",
2920                                         dev->data->port_id);
2921                         dev->rx_pkt_burst = use_avx2 ?
2922                                                 ice_recv_pkts_vec_avx2 :
2923                                                 ice_recv_pkts_vec;
2924                 }
2925                 return;
2926         }
2927
2928 #endif
2929
2930         if (dev->data->scattered_rx) {
2931                 /* Set the non-LRO scattered function */
2932                 PMD_INIT_LOG(DEBUG,
2933                              "Using a Scattered function on port %d.",
2934                              dev->data->port_id);
2935                 dev->rx_pkt_burst = ice_recv_scattered_pkts;
2936         } else if (ad->rx_bulk_alloc_allowed) {
2937                 PMD_INIT_LOG(DEBUG,
2938                              "Rx Burst Bulk Alloc Preconditions are "
2939                              "satisfied. Rx Burst Bulk Alloc function "
2940                              "will be used on port %d.",
2941                              dev->data->port_id);
2942                 dev->rx_pkt_burst = ice_recv_pkts_bulk_alloc;
2943         } else {
2944                 PMD_INIT_LOG(DEBUG,
2945                              "Rx Burst Bulk Alloc Preconditions are not "
2946                              "satisfied, Normal Rx will be used on port %d.",
2947                              dev->data->port_id);
2948                 dev->rx_pkt_burst = ice_recv_pkts;
2949         }
2950 }
2951
2952 static const struct {
2953         eth_rx_burst_t pkt_burst;
2954         const char *info;
2955 } ice_rx_burst_infos[] = {
2956         { ice_recv_scattered_pkts,          "Scalar Scattered" },
2957         { ice_recv_pkts_bulk_alloc,         "Scalar Bulk Alloc" },
2958         { ice_recv_pkts,                    "Scalar" },
2959 #ifdef RTE_ARCH_X86
2960         { ice_recv_scattered_pkts_vec_avx2, "Vector AVX2 Scattered" },
2961         { ice_recv_pkts_vec_avx2,           "Vector AVX2" },
2962         { ice_recv_scattered_pkts_vec,      "Vector SSE Scattered" },
2963         { ice_recv_pkts_vec,                "Vector SSE" },
2964 #endif
2965 };
2966
2967 int
2968 ice_rx_burst_mode_get(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id,
2969                       struct rte_eth_burst_mode *mode)
2970 {
2971         eth_rx_burst_t pkt_burst = dev->rx_pkt_burst;
2972         int ret = -EINVAL;
2973         unsigned int i;
2974
2975         for (i = 0; i < RTE_DIM(ice_rx_burst_infos); ++i) {
2976                 if (pkt_burst == ice_rx_burst_infos[i].pkt_burst) {
2977                         snprintf(mode->info, sizeof(mode->info), "%s",
2978                                  ice_rx_burst_infos[i].info);
2979                         ret = 0;
2980                         break;
2981                 }
2982         }
2983
2984         return ret;
2985 }
2986
2987 void __attribute__((cold))
2988 ice_set_tx_function_flag(struct rte_eth_dev *dev, struct ice_tx_queue *txq)
2989 {
2990         struct ice_adapter *ad =
2991                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
2992
2993         /* Use a simple Tx queue if possible (only fast free is allowed) */
2994         ad->tx_simple_allowed =
2995                 (txq->offloads ==
2996                 (txq->offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE) &&
2997                 txq->tx_rs_thresh >= ICE_TX_MAX_BURST);
2998
2999         if (ad->tx_simple_allowed)
3000                 PMD_INIT_LOG(DEBUG, "Simple Tx can be enabled on Tx queue %u.",
3001                              txq->queue_id);
3002         else
3003                 PMD_INIT_LOG(DEBUG,
3004                              "Simple Tx can NOT be enabled on Tx queue %u.",
3005                              txq->queue_id);
3006 }
3007
3008 /*********************************************************************
3009  *
3010  *  TX prep functions
3011  *
3012  **********************************************************************/
3013 /* The default values of TSO MSS */
3014 #define ICE_MIN_TSO_MSS            64
3015 #define ICE_MAX_TSO_MSS            9728
3016 #define ICE_MAX_TSO_FRAME_SIZE     262144
3017 uint16_t
3018 ice_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
3019               uint16_t nb_pkts)
3020 {
3021         int i, ret;
3022         uint64_t ol_flags;
3023         struct rte_mbuf *m;
3024
3025         for (i = 0; i < nb_pkts; i++) {
3026                 m = tx_pkts[i];
3027                 ol_flags = m->ol_flags;
3028
3029                 if (ol_flags & PKT_TX_TCP_SEG &&
3030                     (m->tso_segsz < ICE_MIN_TSO_MSS ||
3031                      m->tso_segsz > ICE_MAX_TSO_MSS ||
3032                      m->pkt_len > ICE_MAX_TSO_FRAME_SIZE)) {
3033                         /**
3034                          * MSS outside the range are considered malicious
3035                          */
3036                         rte_errno = EINVAL;
3037                         return i;
3038                 }
3039
3040 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
3041                 ret = rte_validate_tx_offload(m);
3042                 if (ret != 0) {
3043                         rte_errno = -ret;
3044                         return i;
3045                 }
3046 #endif
3047                 ret = rte_net_intel_cksum_prepare(m);
3048                 if (ret != 0) {
3049                         rte_errno = -ret;
3050                         return i;
3051                 }
3052         }
3053         return i;
3054 }
3055
3056 void __attribute__((cold))
3057 ice_set_tx_function(struct rte_eth_dev *dev)
3058 {
3059         struct ice_adapter *ad =
3060                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
3061 #ifdef RTE_ARCH_X86
3062         struct ice_tx_queue *txq;
3063         int i;
3064         bool use_avx2 = false;
3065
3066         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
3067                 if (!ice_tx_vec_dev_check(dev)) {
3068                         ad->tx_vec_allowed = true;
3069                         for (i = 0; i < dev->data->nb_tx_queues; i++) {
3070                                 txq = dev->data->tx_queues[i];
3071                                 if (txq && ice_txq_vec_setup(txq)) {
3072                                         ad->tx_vec_allowed = false;
3073                                         break;
3074                                 }
3075                         }
3076
3077                         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
3078                         rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1)
3079                                 use_avx2 = true;
3080
3081                 } else {
3082                         ad->tx_vec_allowed = false;
3083                 }
3084         }
3085
3086         if (ad->tx_vec_allowed) {
3087                 PMD_DRV_LOG(DEBUG, "Using %sVector Tx (port %d).",
3088                             use_avx2 ? "avx2 " : "",
3089                             dev->data->port_id);
3090                 dev->tx_pkt_burst = use_avx2 ?
3091                                     ice_xmit_pkts_vec_avx2 :
3092                                     ice_xmit_pkts_vec;
3093                 dev->tx_pkt_prepare = NULL;
3094
3095                 return;
3096         }
3097 #endif
3098
3099         if (ad->tx_simple_allowed) {
3100                 PMD_INIT_LOG(DEBUG, "Simple tx finally be used.");
3101                 dev->tx_pkt_burst = ice_xmit_pkts_simple;
3102                 dev->tx_pkt_prepare = NULL;
3103         } else {
3104                 PMD_INIT_LOG(DEBUG, "Normal tx finally be used.");
3105                 dev->tx_pkt_burst = ice_xmit_pkts;
3106                 dev->tx_pkt_prepare = ice_prep_pkts;
3107         }
3108 }
3109
3110 static const struct {
3111         eth_tx_burst_t pkt_burst;
3112         const char *info;
3113 } ice_tx_burst_infos[] = {
3114         { ice_xmit_pkts_simple,   "Scalar Simple" },
3115         { ice_xmit_pkts,          "Scalar" },
3116 #ifdef RTE_ARCH_X86
3117         { ice_xmit_pkts_vec_avx2, "Vector AVX2" },
3118         { ice_xmit_pkts_vec,      "Vector SSE" },
3119 #endif
3120 };
3121
3122 int
3123 ice_tx_burst_mode_get(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id,
3124                       struct rte_eth_burst_mode *mode)
3125 {
3126         eth_tx_burst_t pkt_burst = dev->tx_pkt_burst;
3127         int ret = -EINVAL;
3128         unsigned int i;
3129
3130         for (i = 0; i < RTE_DIM(ice_tx_burst_infos); ++i) {
3131                 if (pkt_burst == ice_tx_burst_infos[i].pkt_burst) {
3132                         snprintf(mode->info, sizeof(mode->info), "%s",
3133                                  ice_tx_burst_infos[i].info);
3134                         ret = 0;
3135                         break;
3136                 }
3137         }
3138
3139         return ret;
3140 }
3141
3142 /* For each value it means, datasheet of hardware can tell more details
3143  *
3144  * @note: fix ice_dev_supported_ptypes_get() if any change here.
3145  */
3146 static inline uint32_t
3147 ice_get_default_pkt_type(uint16_t ptype)
3148 {
3149         static const uint32_t type_table[ICE_MAX_PKT_TYPE]
3150                 __rte_cache_aligned = {
3151                 /* L2 types */
3152                 /* [0] reserved */
3153                 [1] = RTE_PTYPE_L2_ETHER,
3154                 [2] = RTE_PTYPE_L2_ETHER_TIMESYNC,
3155                 /* [3] - [5] reserved */
3156                 [6] = RTE_PTYPE_L2_ETHER_LLDP,
3157                 /* [7] - [10] reserved */
3158                 [11] = RTE_PTYPE_L2_ETHER_ARP,
3159                 /* [12] - [21] reserved */
3160
3161                 /* Non tunneled IPv4 */
3162                 [22] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3163                        RTE_PTYPE_L4_FRAG,
3164                 [23] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3165                        RTE_PTYPE_L4_NONFRAG,
3166                 [24] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3167                        RTE_PTYPE_L4_UDP,
3168                 /* [25] reserved */
3169                 [26] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3170                        RTE_PTYPE_L4_TCP,
3171                 [27] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3172                        RTE_PTYPE_L4_SCTP,
3173                 [28] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3174                        RTE_PTYPE_L4_ICMP,
3175
3176                 /* IPv4 --> IPv4 */
3177                 [29] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3178                        RTE_PTYPE_TUNNEL_IP |
3179                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3180                        RTE_PTYPE_INNER_L4_FRAG,
3181                 [30] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3182                        RTE_PTYPE_TUNNEL_IP |
3183                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3184                        RTE_PTYPE_INNER_L4_NONFRAG,
3185                 [31] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3186                        RTE_PTYPE_TUNNEL_IP |
3187                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3188                        RTE_PTYPE_INNER_L4_UDP,
3189                 /* [32] reserved */
3190                 [33] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3191                        RTE_PTYPE_TUNNEL_IP |
3192                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3193                        RTE_PTYPE_INNER_L4_TCP,
3194                 [34] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3195                        RTE_PTYPE_TUNNEL_IP |
3196                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3197                        RTE_PTYPE_INNER_L4_SCTP,
3198                 [35] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3199                        RTE_PTYPE_TUNNEL_IP |
3200                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3201                        RTE_PTYPE_INNER_L4_ICMP,
3202
3203                 /* IPv4 --> IPv6 */
3204                 [36] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3205                        RTE_PTYPE_TUNNEL_IP |
3206                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3207                        RTE_PTYPE_INNER_L4_FRAG,
3208                 [37] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3209                        RTE_PTYPE_TUNNEL_IP |
3210                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3211                        RTE_PTYPE_INNER_L4_NONFRAG,
3212                 [38] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3213                        RTE_PTYPE_TUNNEL_IP |
3214                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3215                        RTE_PTYPE_INNER_L4_UDP,
3216                 /* [39] reserved */
3217                 [40] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3218                        RTE_PTYPE_TUNNEL_IP |
3219                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3220                        RTE_PTYPE_INNER_L4_TCP,
3221                 [41] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3222                        RTE_PTYPE_TUNNEL_IP |
3223                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3224                        RTE_PTYPE_INNER_L4_SCTP,
3225                 [42] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3226                        RTE_PTYPE_TUNNEL_IP |
3227                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3228                        RTE_PTYPE_INNER_L4_ICMP,
3229
3230                 /* IPv4 --> GRE/Teredo/VXLAN */
3231                 [43] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3232                        RTE_PTYPE_TUNNEL_GRENAT,
3233
3234                 /* IPv4 --> GRE/Teredo/VXLAN --> IPv4 */
3235                 [44] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3236                        RTE_PTYPE_TUNNEL_GRENAT |
3237                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3238                        RTE_PTYPE_INNER_L4_FRAG,
3239                 [45] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3240                        RTE_PTYPE_TUNNEL_GRENAT |
3241                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3242                        RTE_PTYPE_INNER_L4_NONFRAG,
3243                 [46] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3244                        RTE_PTYPE_TUNNEL_GRENAT |
3245                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3246                        RTE_PTYPE_INNER_L4_UDP,
3247                 /* [47] reserved */
3248                 [48] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3249                        RTE_PTYPE_TUNNEL_GRENAT |
3250                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3251                        RTE_PTYPE_INNER_L4_TCP,
3252                 [49] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3253                        RTE_PTYPE_TUNNEL_GRENAT |
3254                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3255                        RTE_PTYPE_INNER_L4_SCTP,
3256                 [50] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3257                        RTE_PTYPE_TUNNEL_GRENAT |
3258                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3259                        RTE_PTYPE_INNER_L4_ICMP,
3260
3261                 /* IPv4 --> GRE/Teredo/VXLAN --> IPv6 */
3262                 [51] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3263                        RTE_PTYPE_TUNNEL_GRENAT |
3264                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3265                        RTE_PTYPE_INNER_L4_FRAG,
3266                 [52] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3267                        RTE_PTYPE_TUNNEL_GRENAT |
3268                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3269                        RTE_PTYPE_INNER_L4_NONFRAG,
3270                 [53] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3271                        RTE_PTYPE_TUNNEL_GRENAT |
3272                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3273                        RTE_PTYPE_INNER_L4_UDP,
3274                 /* [54] reserved */
3275                 [55] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3276                        RTE_PTYPE_TUNNEL_GRENAT |
3277                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3278                        RTE_PTYPE_INNER_L4_TCP,
3279                 [56] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3280                        RTE_PTYPE_TUNNEL_GRENAT |
3281                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3282                        RTE_PTYPE_INNER_L4_SCTP,
3283                 [57] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3284                        RTE_PTYPE_TUNNEL_GRENAT |
3285                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3286                        RTE_PTYPE_INNER_L4_ICMP,
3287
3288                 /* IPv4 --> GRE/Teredo/VXLAN --> MAC */
3289                 [58] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3290                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER,
3291
3292                 /* IPv4 --> GRE/Teredo/VXLAN --> MAC --> IPv4 */
3293                 [59] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3294                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3295                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3296                        RTE_PTYPE_INNER_L4_FRAG,
3297                 [60] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3298                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3299                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3300                        RTE_PTYPE_INNER_L4_NONFRAG,
3301                 [61] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3302                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3303                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3304                        RTE_PTYPE_INNER_L4_UDP,
3305                 /* [62] reserved */
3306                 [63] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3307                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3308                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3309                        RTE_PTYPE_INNER_L4_TCP,
3310                 [64] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3311                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3312                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3313                        RTE_PTYPE_INNER_L4_SCTP,
3314                 [65] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3315                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3316                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3317                        RTE_PTYPE_INNER_L4_ICMP,
3318
3319                 /* IPv4 --> GRE/Teredo/VXLAN --> MAC --> IPv6 */
3320                 [66] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3321                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3322                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3323                        RTE_PTYPE_INNER_L4_FRAG,
3324                 [67] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3325                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3326                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3327                        RTE_PTYPE_INNER_L4_NONFRAG,
3328                 [68] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3329                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3330                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3331                        RTE_PTYPE_INNER_L4_UDP,
3332                 /* [69] reserved */
3333                 [70] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3334                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3335                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3336                        RTE_PTYPE_INNER_L4_TCP,
3337                 [71] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3338                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3339                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3340                        RTE_PTYPE_INNER_L4_SCTP,
3341                 [72] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3342                        RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3343                        RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3344                        RTE_PTYPE_INNER_L4_ICMP,
3345                 /* [73] - [87] reserved */
3346
3347                 /* Non tunneled IPv6 */
3348                 [88] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3349                        RTE_PTYPE_L4_FRAG,
3350                 [89] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3351                        RTE_PTYPE_L4_NONFRAG,
3352                 [90] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3353                        RTE_PTYPE_L4_UDP,
3354                 /* [91] reserved */
3355                 [92] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3356                        RTE_PTYPE_L4_TCP,
3357                 [93] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3358                        RTE_PTYPE_L4_SCTP,
3359                 [94] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3360                        RTE_PTYPE_L4_ICMP,
3361
3362                 /* IPv6 --> IPv4 */
3363                 [95] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3364                        RTE_PTYPE_TUNNEL_IP |
3365                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3366                        RTE_PTYPE_INNER_L4_FRAG,
3367                 [96] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3368                        RTE_PTYPE_TUNNEL_IP |
3369                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3370                        RTE_PTYPE_INNER_L4_NONFRAG,
3371                 [97] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3372                        RTE_PTYPE_TUNNEL_IP |
3373                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3374                        RTE_PTYPE_INNER_L4_UDP,
3375                 /* [98] reserved */
3376                 [99] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3377                        RTE_PTYPE_TUNNEL_IP |
3378                        RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3379                        RTE_PTYPE_INNER_L4_TCP,
3380                 [100] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3381                         RTE_PTYPE_TUNNEL_IP |
3382                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3383                         RTE_PTYPE_INNER_L4_SCTP,
3384                 [101] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3385                         RTE_PTYPE_TUNNEL_IP |
3386                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3387                         RTE_PTYPE_INNER_L4_ICMP,
3388
3389                 /* IPv6 --> IPv6 */
3390                 [102] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3391                         RTE_PTYPE_TUNNEL_IP |
3392                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3393                         RTE_PTYPE_INNER_L4_FRAG,
3394                 [103] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3395                         RTE_PTYPE_TUNNEL_IP |
3396                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3397                         RTE_PTYPE_INNER_L4_NONFRAG,
3398                 [104] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3399                         RTE_PTYPE_TUNNEL_IP |
3400                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3401                         RTE_PTYPE_INNER_L4_UDP,
3402                 /* [105] reserved */
3403                 [106] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3404                         RTE_PTYPE_TUNNEL_IP |
3405                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3406                         RTE_PTYPE_INNER_L4_TCP,
3407                 [107] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3408                         RTE_PTYPE_TUNNEL_IP |
3409                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3410                         RTE_PTYPE_INNER_L4_SCTP,
3411                 [108] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3412                         RTE_PTYPE_TUNNEL_IP |
3413                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3414                         RTE_PTYPE_INNER_L4_ICMP,
3415
3416                 /* IPv6 --> GRE/Teredo/VXLAN */
3417                 [109] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3418                         RTE_PTYPE_TUNNEL_GRENAT,
3419
3420                 /* IPv6 --> GRE/Teredo/VXLAN --> IPv4 */
3421                 [110] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3422                         RTE_PTYPE_TUNNEL_GRENAT |
3423                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3424                         RTE_PTYPE_INNER_L4_FRAG,
3425                 [111] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3426                         RTE_PTYPE_TUNNEL_GRENAT |
3427                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3428                         RTE_PTYPE_INNER_L4_NONFRAG,
3429                 [112] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3430                         RTE_PTYPE_TUNNEL_GRENAT |
3431                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3432                         RTE_PTYPE_INNER_L4_UDP,
3433                 /* [113] reserved */
3434                 [114] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3435                         RTE_PTYPE_TUNNEL_GRENAT |
3436                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3437                         RTE_PTYPE_INNER_L4_TCP,
3438                 [115] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3439                         RTE_PTYPE_TUNNEL_GRENAT |
3440                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3441                         RTE_PTYPE_INNER_L4_SCTP,
3442                 [116] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3443                         RTE_PTYPE_TUNNEL_GRENAT |
3444                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3445                         RTE_PTYPE_INNER_L4_ICMP,
3446
3447                 /* IPv6 --> GRE/Teredo/VXLAN --> IPv6 */
3448                 [117] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3449                         RTE_PTYPE_TUNNEL_GRENAT |
3450                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3451                         RTE_PTYPE_INNER_L4_FRAG,
3452                 [118] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3453                         RTE_PTYPE_TUNNEL_GRENAT |
3454                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3455                         RTE_PTYPE_INNER_L4_NONFRAG,
3456                 [119] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3457                         RTE_PTYPE_TUNNEL_GRENAT |
3458                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3459                         RTE_PTYPE_INNER_L4_UDP,
3460                 /* [120] reserved */
3461                 [121] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3462                         RTE_PTYPE_TUNNEL_GRENAT |
3463                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3464                         RTE_PTYPE_INNER_L4_TCP,
3465                 [122] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3466                         RTE_PTYPE_TUNNEL_GRENAT |
3467                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3468                         RTE_PTYPE_INNER_L4_SCTP,
3469                 [123] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3470                         RTE_PTYPE_TUNNEL_GRENAT |
3471                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3472                         RTE_PTYPE_INNER_L4_ICMP,
3473
3474                 /* IPv6 --> GRE/Teredo/VXLAN --> MAC */
3475                 [124] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3476                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER,
3477
3478                 /* IPv6 --> GRE/Teredo/VXLAN --> MAC --> IPv4 */
3479                 [125] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3480                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3481                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3482                         RTE_PTYPE_INNER_L4_FRAG,
3483                 [126] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3484                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3485                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3486                         RTE_PTYPE_INNER_L4_NONFRAG,
3487                 [127] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3488                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3489                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3490                         RTE_PTYPE_INNER_L4_UDP,
3491                 /* [128] reserved */
3492                 [129] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3493                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3494                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3495                         RTE_PTYPE_INNER_L4_TCP,
3496                 [130] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3497                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3498                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3499                         RTE_PTYPE_INNER_L4_SCTP,
3500                 [131] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3501                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3502                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3503                         RTE_PTYPE_INNER_L4_ICMP,
3504
3505                 /* IPv6 --> GRE/Teredo/VXLAN --> MAC --> IPv6 */
3506                 [132] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3507                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3508                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3509                         RTE_PTYPE_INNER_L4_FRAG,
3510                 [133] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3511                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3512                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3513                         RTE_PTYPE_INNER_L4_NONFRAG,
3514                 [134] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3515                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3516                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3517                         RTE_PTYPE_INNER_L4_UDP,
3518                 /* [135] reserved */
3519                 [136] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3520                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3521                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3522                         RTE_PTYPE_INNER_L4_TCP,
3523                 [137] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3524                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3525                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3526                         RTE_PTYPE_INNER_L4_SCTP,
3527                 [138] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3528                         RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
3529                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3530                         RTE_PTYPE_INNER_L4_ICMP,
3531                 /* [139] - [299] reserved */
3532
3533                 /* PPPoE */
3534                 [300] = RTE_PTYPE_L2_ETHER_PPPOE,
3535                 [301] = RTE_PTYPE_L2_ETHER_PPPOE,
3536
3537                 /* PPPoE --> IPv4 */
3538                 [302] = RTE_PTYPE_L2_ETHER_PPPOE |
3539                         RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3540                         RTE_PTYPE_L4_FRAG,
3541                 [303] = RTE_PTYPE_L2_ETHER_PPPOE |
3542                         RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3543                         RTE_PTYPE_L4_NONFRAG,
3544                 [304] = RTE_PTYPE_L2_ETHER_PPPOE |
3545                         RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3546                         RTE_PTYPE_L4_UDP,
3547                 [305] = RTE_PTYPE_L2_ETHER_PPPOE |
3548                         RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3549                         RTE_PTYPE_L4_TCP,
3550                 [306] = RTE_PTYPE_L2_ETHER_PPPOE |
3551                         RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3552                         RTE_PTYPE_L4_SCTP,
3553                 [307] = RTE_PTYPE_L2_ETHER_PPPOE |
3554                         RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3555                         RTE_PTYPE_L4_ICMP,
3556
3557                 /* PPPoE --> IPv6 */
3558                 [308] = RTE_PTYPE_L2_ETHER_PPPOE |
3559                         RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3560                         RTE_PTYPE_L4_FRAG,
3561                 [309] = RTE_PTYPE_L2_ETHER_PPPOE |
3562                         RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3563                         RTE_PTYPE_L4_NONFRAG,
3564                 [310] = RTE_PTYPE_L2_ETHER_PPPOE |
3565                         RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3566                         RTE_PTYPE_L4_UDP,
3567                 [311] = RTE_PTYPE_L2_ETHER_PPPOE |
3568                         RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3569                         RTE_PTYPE_L4_TCP,
3570                 [312] = RTE_PTYPE_L2_ETHER_PPPOE |
3571                         RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3572                         RTE_PTYPE_L4_SCTP,
3573                 [313] = RTE_PTYPE_L2_ETHER_PPPOE |
3574                         RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3575                         RTE_PTYPE_L4_ICMP,
3576                 /* [314] - [324] reserved */
3577
3578                 /* IPv4/IPv6 --> GTPC/GTPU */
3579                 [325] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3580                         RTE_PTYPE_TUNNEL_GTPC,
3581                 [326] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3582                         RTE_PTYPE_TUNNEL_GTPC,
3583                 [327] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3584                         RTE_PTYPE_TUNNEL_GTPC,
3585                 [328] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3586                         RTE_PTYPE_TUNNEL_GTPC,
3587                 [329] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3588                         RTE_PTYPE_TUNNEL_GTPU,
3589                 [330] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3590                         RTE_PTYPE_TUNNEL_GTPU,
3591
3592                 /* IPv4 --> GTPU --> IPv4 */
3593                 [331] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3594                         RTE_PTYPE_TUNNEL_GTPU |
3595                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3596                         RTE_PTYPE_INNER_L4_FRAG,
3597                 [332] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3598                         RTE_PTYPE_TUNNEL_GTPU |
3599                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3600                         RTE_PTYPE_INNER_L4_NONFRAG,
3601                 [333] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3602                         RTE_PTYPE_TUNNEL_GTPU |
3603                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3604                         RTE_PTYPE_INNER_L4_UDP,
3605                 [334] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3606                         RTE_PTYPE_TUNNEL_GTPU |
3607                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3608                         RTE_PTYPE_INNER_L4_TCP,
3609                 [335] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3610                         RTE_PTYPE_TUNNEL_GTPU |
3611                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3612                         RTE_PTYPE_INNER_L4_ICMP,
3613
3614                 /* IPv6 --> GTPU --> IPv4 */
3615                 [336] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3616                         RTE_PTYPE_TUNNEL_GTPU |
3617                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3618                         RTE_PTYPE_INNER_L4_FRAG,
3619                 [337] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3620                         RTE_PTYPE_TUNNEL_GTPU |
3621                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3622                         RTE_PTYPE_INNER_L4_NONFRAG,
3623                 [338] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3624                         RTE_PTYPE_TUNNEL_GTPU |
3625                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3626                         RTE_PTYPE_INNER_L4_UDP,
3627                 [339] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3628                         RTE_PTYPE_TUNNEL_GTPU |
3629                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3630                         RTE_PTYPE_INNER_L4_TCP,
3631                 [340] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3632                         RTE_PTYPE_TUNNEL_GTPU |
3633                         RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
3634                         RTE_PTYPE_INNER_L4_ICMP,
3635
3636                 /* IPv4 --> GTPU --> IPv6 */
3637                 [341] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3638                         RTE_PTYPE_TUNNEL_GTPU |
3639                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3640                         RTE_PTYPE_INNER_L4_FRAG,
3641                 [342] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3642                         RTE_PTYPE_TUNNEL_GTPU |
3643                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3644                         RTE_PTYPE_INNER_L4_NONFRAG,
3645                 [343] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3646                         RTE_PTYPE_TUNNEL_GTPU |
3647                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3648                         RTE_PTYPE_INNER_L4_UDP,
3649                 [344] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3650                         RTE_PTYPE_TUNNEL_GTPU |
3651                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3652                         RTE_PTYPE_INNER_L4_TCP,
3653                 [345] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
3654                         RTE_PTYPE_TUNNEL_GTPU |
3655                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3656                         RTE_PTYPE_INNER_L4_ICMP,
3657
3658                 /* IPv6 --> GTPU --> IPv6 */
3659                 [346] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3660                         RTE_PTYPE_TUNNEL_GTPU |
3661                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3662                         RTE_PTYPE_INNER_L4_FRAG,
3663                 [347] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3664                         RTE_PTYPE_TUNNEL_GTPU |
3665                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3666                         RTE_PTYPE_INNER_L4_NONFRAG,
3667                 [348] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3668                         RTE_PTYPE_TUNNEL_GTPU |
3669                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3670                         RTE_PTYPE_INNER_L4_UDP,
3671                 [349] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3672                         RTE_PTYPE_TUNNEL_GTPU |
3673                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3674                         RTE_PTYPE_INNER_L4_TCP,
3675                 [350] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
3676                         RTE_PTYPE_TUNNEL_GTPU |
3677                         RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
3678                         RTE_PTYPE_INNER_L4_ICMP,
3679                 /* All others reserved */
3680         };
3681
3682         return type_table[ptype];
3683 }
3684
3685 void __attribute__((cold))
3686 ice_set_default_ptype_table(struct rte_eth_dev *dev)
3687 {
3688         struct ice_adapter *ad =
3689                 ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
3690         int i;
3691
3692         for (i = 0; i < ICE_MAX_PKT_TYPE; i++)
3693                 ad->ptype_tbl[i] = ice_get_default_pkt_type(i);
3694 }
3695
3696 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_PROGID_S 1
3697 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_PROGID_M \
3698                         (0x3UL << ICE_RX_PROG_STATUS_DESC_WB_QW1_PROGID_S)
3699 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_PROG_ADD 0
3700 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_PROG_DEL 0x1
3701
3702 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_S   4
3703 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_M   \
3704         (1 << ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_S)
3705 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_PROF_S      5
3706 #define ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_PROF_M      \
3707         (1 << ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_PROF_S)
3708
3709 /*
3710  * check the programming status descriptor in rx queue.
3711  * done after Programming Flow Director is programmed on
3712  * tx queue
3713  */
3714 static inline int
3715 ice_check_fdir_programming_status(struct ice_rx_queue *rxq)
3716 {
3717         volatile union ice_32byte_rx_desc *rxdp;
3718         uint64_t qword1;
3719         uint32_t rx_status;
3720         uint32_t error;
3721         uint32_t id;
3722         int ret = -EAGAIN;
3723
3724         rxdp = (volatile union ice_32byte_rx_desc *)
3725                 (&rxq->rx_ring[rxq->rx_tail]);
3726         qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
3727         rx_status = (qword1 & ICE_RXD_QW1_STATUS_M)
3728                         >> ICE_RXD_QW1_STATUS_S;
3729
3730         if (rx_status & (1 << ICE_RX_DESC_STATUS_DD_S)) {
3731                 ret = 0;
3732                 error = (qword1 & ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_M) >>
3733                         ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_S;
3734                 id = (qword1 & ICE_RX_PROG_STATUS_DESC_WB_QW1_PROGID_M) >>
3735                         ICE_RX_PROG_STATUS_DESC_WB_QW1_PROGID_S;
3736                 if (error) {
3737                         if (id == ICE_RX_PROG_STATUS_DESC_WB_QW1_PROG_ADD)
3738                                 PMD_DRV_LOG(ERR, "Failed to add FDIR rule.");
3739                         else if (id == ICE_RX_PROG_STATUS_DESC_WB_QW1_PROG_DEL)
3740                                 PMD_DRV_LOG(ERR, "Failed to remove FDIR rule.");
3741                         ret = -EINVAL;
3742                         goto err;
3743                 }
3744                 error = (qword1 & ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_PROF_M) >>
3745                         ICE_RX_PROG_STATUS_DESC_WB_QW1_FAIL_PROF_S;
3746                 if (error) {
3747                         PMD_DRV_LOG(ERR, "Failed to create FDIR profile.");
3748                         ret = -EINVAL;
3749                 }
3750 err:
3751                 rxdp->wb.qword1.status_error_len = 0;
3752                 rxq->rx_tail++;
3753                 if (unlikely(rxq->rx_tail == rxq->nb_rx_desc))
3754                         rxq->rx_tail = 0;
3755                 if (rxq->rx_tail == 0)
3756                         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
3757                 else
3758                         ICE_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail - 1);
3759         }
3760
3761         return ret;
3762 }
3763
3764 #define ICE_FDIR_MAX_WAIT_US 10000
3765
3766 int
3767 ice_fdir_programming(struct ice_pf *pf, struct ice_fltr_desc *fdir_desc)
3768 {
3769         struct ice_tx_queue *txq = pf->fdir.txq;
3770         struct ice_rx_queue *rxq = pf->fdir.rxq;
3771         volatile struct ice_fltr_desc *fdirdp;
3772         volatile struct ice_tx_desc *txdp;
3773         uint32_t td_cmd;
3774         uint16_t i;
3775
3776         fdirdp = (volatile struct ice_fltr_desc *)
3777                 (&txq->tx_ring[txq->tx_tail]);
3778         fdirdp->qidx_compq_space_stat = fdir_desc->qidx_compq_space_stat;
3779         fdirdp->dtype_cmd_vsi_fdid = fdir_desc->dtype_cmd_vsi_fdid;
3780
3781         txdp = &txq->tx_ring[txq->tx_tail + 1];
3782         txdp->buf_addr = rte_cpu_to_le_64(pf->fdir.dma_addr);
3783         td_cmd = ICE_TX_DESC_CMD_EOP |
3784                 ICE_TX_DESC_CMD_RS  |
3785                 ICE_TX_DESC_CMD_DUMMY;
3786
3787         txdp->cmd_type_offset_bsz =
3788                 ice_build_ctob(td_cmd, 0, ICE_FDIR_PKT_LEN, 0);
3789
3790         txq->tx_tail += 2;
3791         if (txq->tx_tail >= txq->nb_tx_desc)
3792                 txq->tx_tail = 0;
3793         /* Update the tx tail register */
3794         ICE_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
3795         for (i = 0; i < ICE_FDIR_MAX_WAIT_US; i++) {
3796                 if ((txdp->cmd_type_offset_bsz &
3797                      rte_cpu_to_le_64(ICE_TXD_QW1_DTYPE_M)) ==
3798                     rte_cpu_to_le_64(ICE_TX_DESC_DTYPE_DESC_DONE))
3799                         break;
3800                 rte_delay_us(1);
3801         }
3802         if (i >= ICE_FDIR_MAX_WAIT_US) {
3803                 PMD_DRV_LOG(ERR,
3804                             "Failed to program FDIR filter: time out to get DD on tx queue.");
3805                 return -ETIMEDOUT;
3806         }
3807
3808         for (; i < ICE_FDIR_MAX_WAIT_US; i++) {
3809                 int ret;
3810
3811                 ret = ice_check_fdir_programming_status(rxq);
3812                 if (ret == -EAGAIN)
3813                         rte_delay_us(1);
3814                 else
3815                         return ret;
3816         }
3817
3818         PMD_DRV_LOG(ERR,
3819                     "Failed to program FDIR filter: programming status reported.");
3820         return -ETIMEDOUT;
3821
3822
3823 }