drivers/net/ice/ice_dcf_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation
   3  */
   4
   5 #include <errno.h>
   6 #include <stdbool.h>
   7 #include <sys/types.h>
   8 #include <unistd.h>
   9
  10 #include <rte_interrupts.h>
  11 #include <rte_debug.h>
  12 #include <rte_pci.h>
  13 #include <rte_atomic.h>
  14 #include <rte_eal.h>
  15 #include <rte_ether.h>
  16 #include <ethdev_pci.h>
  17 #include <rte_kvargs.h>
  18 #include <rte_malloc.h>
  19 #include <rte_memzone.h>
  20 #include <rte_dev.h>
  21
  22 #include <iavf_devids.h>
  23
  24 #include "ice_generic_flow.h"
  25 #include "ice_dcf_ethdev.h"
  26 #include "ice_rxtx.h"
  27
  28 static int
  29 ice_dcf_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
  30                                 struct rte_eth_udp_tunnel *udp_tunnel);
  31 static int
  32 ice_dcf_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
  33                                 struct rte_eth_udp_tunnel *udp_tunnel);
  34
  35 static uint16_t
  36 ice_dcf_recv_pkts(__rte_unused void *rx_queue,
  37                   __rte_unused struct rte_mbuf **bufs,
  38                   __rte_unused uint16_t nb_pkts)
  39 {
  40         return 0;
  41 }
  42
  43 static uint16_t
  44 ice_dcf_xmit_pkts(__rte_unused void *tx_queue,
  45                   __rte_unused struct rte_mbuf **bufs,
  46                   __rte_unused uint16_t nb_pkts)
  47 {
  48         return 0;
  49 }
  50
  51 static int
  52 ice_dcf_init_rxq(struct rte_eth_dev *dev, struct ice_rx_queue *rxq)
  53 {
  54         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
  55         struct rte_eth_dev_data *dev_data = dev->data;
  56         struct iavf_hw *hw = &dcf_ad->real_hw.avf;
  57         uint16_t buf_size, max_pkt_len;
  58
  59         buf_size = rte_pktmbuf_data_room_size(rxq->mp) - RTE_PKTMBUF_HEADROOM;
  60         rxq->rx_hdr_len = 0;
  61         rxq->rx_buf_len = RTE_ALIGN(buf_size, (1 << ICE_RLAN_CTX_DBUF_S));
  62         max_pkt_len = RTE_MIN((uint32_t)
  63                               ICE_SUPPORT_CHAIN_NUM * rxq->rx_buf_len,
  64                               dev->data->dev_conf.rxmode.max_rx_pkt_len);
  65
  66         /* Check if the jumbo frame and maximum packet length are set
  67          * correctly.
  68          */
  69         if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
  70                 if (max_pkt_len <= ICE_ETH_MAX_LEN ||
  71                     max_pkt_len > ICE_FRAME_SIZE_MAX) {
  72                         PMD_DRV_LOG(ERR, "maximum packet length must be "
  73                                     "larger than %u and smaller than %u, "
  74                                     "as jumbo frame is enabled",
  75                                     (uint32_t)ICE_ETH_MAX_LEN,
  76                                     (uint32_t)ICE_FRAME_SIZE_MAX);
  77                         return -EINVAL;
  78                 }
  79         } else {
  80                 if (max_pkt_len < RTE_ETHER_MIN_LEN ||
  81                     max_pkt_len > ICE_ETH_MAX_LEN) {
  82                         PMD_DRV_LOG(ERR, "maximum packet length must be "
  83                                     "larger than %u and smaller than %u, "
  84                                     "as jumbo frame is disabled",
  85                                     (uint32_t)RTE_ETHER_MIN_LEN,
  86                                     (uint32_t)ICE_ETH_MAX_LEN);
  87                         return -EINVAL;
  88                 }
  89         }
  90
  91         rxq->max_pkt_len = max_pkt_len;
  92         if ((dev_data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SCATTER) ||
  93             (rxq->max_pkt_len + 2 * ICE_VLAN_TAG_SIZE) > buf_size) {
  94                 dev_data->scattered_rx = 1;
  95         }
  96         rxq->qrx_tail = hw->hw_addr + IAVF_QRX_TAIL1(rxq->queue_id);
  97         IAVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
  98         IAVF_WRITE_FLUSH(hw);
  99
 100         return 0;
 101 }
 102
 103 static int
 104 ice_dcf_init_rx_queues(struct rte_eth_dev *dev)
 105 {
 106         struct ice_rx_queue **rxq =
 107                 (struct ice_rx_queue **)dev->data->rx_queues;
 108         int i, ret;
 109
 110         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 111                 if (!rxq[i] || !rxq[i]->q_set)
 112                         continue;
 113                 ret = ice_dcf_init_rxq(dev, rxq[i]);
 114                 if (ret)
 115                         return ret;
 116         }
 117
 118         ice_set_rx_function(dev);
 119         ice_set_tx_function(dev);
 120
 121         return 0;
 122 }
 123
 124 #define IAVF_MISC_VEC_ID                RTE_INTR_VEC_ZERO_OFFSET
 125 #define IAVF_RX_VEC_START               RTE_INTR_VEC_RXTX_OFFSET
 126
 127 #define IAVF_ITR_INDEX_DEFAULT          0
 128 #define IAVF_QUEUE_ITR_INTERVAL_DEFAULT 32 /* 32 us */
 129 #define IAVF_QUEUE_ITR_INTERVAL_MAX     8160 /* 8160 us */
 130
 131 static inline uint16_t
 132 iavf_calc_itr_interval(int16_t interval)
 133 {
 134         if (interval < 0 || interval > IAVF_QUEUE_ITR_INTERVAL_MAX)
 135                 interval = IAVF_QUEUE_ITR_INTERVAL_DEFAULT;
 136
 137         /* Convert to hardware count, as writing each 1 represents 2 us */
 138         return interval / 2;
 139 }
 140
 141 static int
 142 ice_dcf_config_rx_queues_irqs(struct rte_eth_dev *dev,
 143                                      struct rte_intr_handle *intr_handle)
 144 {
 145         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 146         struct ice_dcf_hw *hw = &adapter->real_hw;
 147         uint16_t interval, i;
 148         int vec;
 149
 150         if (rte_intr_cap_multiple(intr_handle) &&
 151             dev->data->dev_conf.intr_conf.rxq) {
 152                 if (rte_intr_efd_enable(intr_handle, dev->data->nb_rx_queues))
 153                         return -1;
 154         }
 155
 156         if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
 157                 intr_handle->intr_vec =
 158                         rte_zmalloc("intr_vec",
 159                                     dev->data->nb_rx_queues * sizeof(int), 0);
 160                 if (!intr_handle->intr_vec) {
 161                         PMD_DRV_LOG(ERR, "Failed to allocate %d rx intr_vec",
 162                                     dev->data->nb_rx_queues);
 163                         return -1;
 164                 }
 165         }
 166
 167         if (!dev->data->dev_conf.intr_conf.rxq ||
 168             !rte_intr_dp_is_en(intr_handle)) {
 169                 /* Rx interrupt disabled, Map interrupt only for writeback */
 170                 hw->nb_msix = 1;
 171                 if (hw->vf_res->vf_cap_flags &
 172                     VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) {
 173                         /* If WB_ON_ITR supports, enable it */
 174                         hw->msix_base = IAVF_RX_VEC_START;
 175                         IAVF_WRITE_REG(&hw->avf,
 176                                        IAVF_VFINT_DYN_CTLN1(hw->msix_base - 1),
 177                                        IAVF_VFINT_DYN_CTLN1_ITR_INDX_MASK |
 178                                        IAVF_VFINT_DYN_CTLN1_WB_ON_ITR_MASK);
 179                 } else {
 180                         /* If no WB_ON_ITR offload flags, need to set
 181                          * interrupt for descriptor write back.
 182                          */
 183                         hw->msix_base = IAVF_MISC_VEC_ID;
 184
 185                         /* set ITR to max */
 186                         interval =
 187                         iavf_calc_itr_interval(IAVF_QUEUE_ITR_INTERVAL_MAX);
 188                         IAVF_WRITE_REG(&hw->avf, IAVF_VFINT_DYN_CTL01,
 189                                        IAVF_VFINT_DYN_CTL01_INTENA_MASK |
 190                                        (IAVF_ITR_INDEX_DEFAULT <<
 191                                         IAVF_VFINT_DYN_CTL01_ITR_INDX_SHIFT) |
 192                                        (interval <<
 193                                         IAVF_VFINT_DYN_CTL01_INTERVAL_SHIFT));
 194                 }
 195                 IAVF_WRITE_FLUSH(&hw->avf);
 196                 /* map all queues to the same interrupt */
 197                 for (i = 0; i < dev->data->nb_rx_queues; i++)
 198                         hw->rxq_map[hw->msix_base] |= 1 << i;
 199         } else {
 200                 if (!rte_intr_allow_others(intr_handle)) {
 201                         hw->nb_msix = 1;
 202                         hw->msix_base = IAVF_MISC_VEC_ID;
 203                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 204                                 hw->rxq_map[hw->msix_base] |= 1 << i;
 205                                 intr_handle->intr_vec[i] = IAVF_MISC_VEC_ID;
 206                         }
 207                         PMD_DRV_LOG(DEBUG,
 208                                     "vector %u are mapping to all Rx queues",
 209                                     hw->msix_base);
 210                 } else {
 211                         /* If Rx interrupt is reuquired, and we can use
 212                          * multi interrupts, then the vec is from 1
 213                          */
 214                         hw->nb_msix = RTE_MIN(hw->vf_res->max_vectors,
 215                                               intr_handle->nb_efd);
 216                         hw->msix_base = IAVF_MISC_VEC_ID;
 217                         vec = IAVF_MISC_VEC_ID;
 218                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 219                                 hw->rxq_map[vec] |= 1 << i;
 220                                 intr_handle->intr_vec[i] = vec++;
 221                                 if (vec >= hw->nb_msix)
 222                                         vec = IAVF_RX_VEC_START;
 223                         }
 224                         PMD_DRV_LOG(DEBUG,
 225                                     "%u vectors are mapping to %u Rx queues",
 226                                     hw->nb_msix, dev->data->nb_rx_queues);
 227                 }
 228         }
 229
 230         if (ice_dcf_config_irq_map(hw)) {
 231                 PMD_DRV_LOG(ERR, "config interrupt mapping failed");
 232                 return -1;
 233         }
 234         return 0;
 235 }
 236
 237 static int
 238 alloc_rxq_mbufs(struct ice_rx_queue *rxq)
 239 {
 240         volatile union ice_rx_flex_desc *rxd;
 241         struct rte_mbuf *mbuf = NULL;
 242         uint64_t dma_addr;
 243         uint16_t i;
 244
 245         for (i = 0; i < rxq->nb_rx_desc; i++) {
 246                 mbuf = rte_mbuf_raw_alloc(rxq->mp);
 247                 if (unlikely(!mbuf)) {
 248                         PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
 249                         return -ENOMEM;
 250                 }
 251
 252                 rte_mbuf_refcnt_set(mbuf, 1);
 253                 mbuf->next = NULL;
 254                 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 255                 mbuf->nb_segs = 1;
 256                 mbuf->port = rxq->port_id;
 257
 258                 dma_addr =
 259                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
 260
 261                 rxd = &rxq->rx_ring[i];
 262                 rxd->read.pkt_addr = dma_addr;
 263                 rxd->read.hdr_addr = 0;
 264 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
 265                 rxd->read.rsvd1 = 0;
 266                 rxd->read.rsvd2 = 0;
 267 #endif
 268
 269                 rxq->sw_ring[i].mbuf = (void *)mbuf;
 270         }
 271
 272         return 0;
 273 }
 274
 275 static int
 276 ice_dcf_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 277 {
 278         struct ice_dcf_adapter *ad = dev->data->dev_private;
 279         struct iavf_hw *hw = &ad->real_hw.avf;
 280         struct ice_rx_queue *rxq;
 281         int err = 0;
 282
 283         if (rx_queue_id >= dev->data->nb_rx_queues)
 284                 return -EINVAL;
 285
 286         rxq = dev->data->rx_queues[rx_queue_id];
 287
 288         err = alloc_rxq_mbufs(rxq);
 289         if (err) {
 290                 PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
 291                 return err;
 292         }
 293
 294         rte_wmb();
 295
 296         /* Init the RX tail register. */
 297         IAVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 298         IAVF_WRITE_FLUSH(hw);
 299
 300         /* Ready to switch the queue on */
 301         err = ice_dcf_switch_queue(&ad->real_hw, rx_queue_id, true, true);
 302         if (err) {
 303                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
 304                             rx_queue_id);
 305                 return err;
 306         }
 307
 308         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 309
 310         return 0;
 311 }
 312
 313 static inline void
 314 reset_rx_queue(struct ice_rx_queue *rxq)
 315 {
 316         uint16_t len;
 317         uint32_t i;
 318
 319         if (!rxq)
 320                 return;
 321
 322         len = rxq->nb_rx_desc + ICE_RX_MAX_BURST;
 323
 324         for (i = 0; i < len * sizeof(union ice_rx_flex_desc); i++)
 325                 ((volatile char *)rxq->rx_ring)[i] = 0;
 326
 327         memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
 328
 329         for (i = 0; i < ICE_RX_MAX_BURST; i++)
 330                 rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
 331
 332         /* for rx bulk */
 333         rxq->rx_nb_avail = 0;
 334         rxq->rx_next_avail = 0;
 335         rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
 336
 337         rxq->rx_tail = 0;
 338         rxq->nb_rx_hold = 0;
 339         rxq->pkt_first_seg = NULL;
 340         rxq->pkt_last_seg = NULL;
 341 }
 342
 343 static inline void
 344 reset_tx_queue(struct ice_tx_queue *txq)
 345 {
 346         struct ice_tx_entry *txe;
 347         uint32_t i, size;
 348         uint16_t prev;
 349
 350         if (!txq) {
 351                 PMD_DRV_LOG(DEBUG, "Pointer to txq is NULL");
 352                 return;
 353         }
 354
 355         txe = txq->sw_ring;
 356         size = sizeof(struct ice_tx_desc) * txq->nb_tx_desc;
 357         for (i = 0; i < size; i++)
 358                 ((volatile char *)txq->tx_ring)[i] = 0;
 359
 360         prev = (uint16_t)(txq->nb_tx_desc - 1);
 361         for (i = 0; i < txq->nb_tx_desc; i++) {
 362                 txq->tx_ring[i].cmd_type_offset_bsz =
 363                         rte_cpu_to_le_64(IAVF_TX_DESC_DTYPE_DESC_DONE);
 364                 txe[i].mbuf =  NULL;
 365                 txe[i].last_id = i;
 366                 txe[prev].next_id = i;
 367                 prev = i;
 368         }
 369
 370         txq->tx_tail = 0;
 371         txq->nb_tx_used = 0;
 372
 373         txq->last_desc_cleaned = txq->nb_tx_desc - 1;
 374         txq->nb_tx_free = txq->nb_tx_desc - 1;
 375
 376         txq->tx_next_dd = txq->tx_rs_thresh - 1;
 377         txq->tx_next_rs = txq->tx_rs_thresh - 1;
 378 }
 379
 380 static int
 381 ice_dcf_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 382 {
 383         struct ice_dcf_adapter *ad = dev->data->dev_private;
 384         struct ice_dcf_hw *hw = &ad->real_hw;
 385         struct ice_rx_queue *rxq;
 386         int err;
 387
 388         if (rx_queue_id >= dev->data->nb_rx_queues)
 389                 return -EINVAL;
 390
 391         err = ice_dcf_switch_queue(hw, rx_queue_id, true, false);
 392         if (err) {
 393                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
 394                             rx_queue_id);
 395                 return err;
 396         }
 397
 398         rxq = dev->data->rx_queues[rx_queue_id];
 399         rxq->rx_rel_mbufs(rxq);
 400         reset_rx_queue(rxq);
 401         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 402
 403         return 0;
 404 }
 405
 406 static int
 407 ice_dcf_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 408 {
 409         struct ice_dcf_adapter *ad = dev->data->dev_private;
 410         struct iavf_hw *hw = &ad->real_hw.avf;
 411         struct ice_tx_queue *txq;
 412         int err = 0;
 413
 414         if (tx_queue_id >= dev->data->nb_tx_queues)
 415                 return -EINVAL;
 416
 417         txq = dev->data->tx_queues[tx_queue_id];
 418
 419         /* Init the RX tail register. */
 420         txq->qtx_tail = hw->hw_addr + IAVF_QTX_TAIL1(tx_queue_id);
 421         IAVF_PCI_REG_WRITE(txq->qtx_tail, 0);
 422         IAVF_WRITE_FLUSH(hw);
 423
 424         /* Ready to switch the queue on */
 425         err = ice_dcf_switch_queue(&ad->real_hw, tx_queue_id, false, true);
 426
 427         if (err) {
 428                 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on",
 429                             tx_queue_id);
 430                 return err;
 431         }
 432
 433         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 434
 435         return 0;
 436 }
 437
 438 static int
 439 ice_dcf_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 440 {
 441         struct ice_dcf_adapter *ad = dev->data->dev_private;
 442         struct ice_dcf_hw *hw = &ad->real_hw;
 443         struct ice_tx_queue *txq;
 444         int err;
 445
 446         if (tx_queue_id >= dev->data->nb_tx_queues)
 447                 return -EINVAL;
 448
 449         err = ice_dcf_switch_queue(hw, tx_queue_id, false, false);
 450         if (err) {
 451                 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u off",
 452                             tx_queue_id);
 453                 return err;
 454         }
 455
 456         txq = dev->data->tx_queues[tx_queue_id];
 457         txq->tx_rel_mbufs(txq);
 458         reset_tx_queue(txq);
 459         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 460
 461         return 0;
 462 }
 463
 464 static int
 465 ice_dcf_start_queues(struct rte_eth_dev *dev)
 466 {
 467         struct ice_rx_queue *rxq;
 468         struct ice_tx_queue *txq;
 469         int nb_rxq = 0;
 470         int nb_txq, i;
 471
 472         for (nb_txq = 0; nb_txq < dev->data->nb_tx_queues; nb_txq++) {
 473                 txq = dev->data->tx_queues[nb_txq];
 474                 if (txq->tx_deferred_start)
 475                         continue;
 476                 if (ice_dcf_tx_queue_start(dev, nb_txq) != 0) {
 477                         PMD_DRV_LOG(ERR, "Fail to start queue %u", nb_txq);
 478                         goto tx_err;
 479                 }
 480         }
 481
 482         for (nb_rxq = 0; nb_rxq < dev->data->nb_rx_queues; nb_rxq++) {
 483                 rxq = dev->data->rx_queues[nb_rxq];
 484                 if (rxq->rx_deferred_start)
 485                         continue;
 486                 if (ice_dcf_rx_queue_start(dev, nb_rxq) != 0) {
 487                         PMD_DRV_LOG(ERR, "Fail to start queue %u", nb_rxq);
 488                         goto rx_err;
 489                 }
 490         }
 491
 492         return 0;
 493
 494         /* stop the started queues if failed to start all queues */
 495 rx_err:
 496         for (i = 0; i < nb_rxq; i++)
 497                 ice_dcf_rx_queue_stop(dev, i);
 498 tx_err:
 499         for (i = 0; i < nb_txq; i++)
 500                 ice_dcf_tx_queue_stop(dev, i);
 501
 502         return -1;
 503 }
 504
 505 static int
 506 ice_dcf_dev_start(struct rte_eth_dev *dev)
 507 {
 508         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
 509         struct rte_intr_handle *intr_handle = dev->intr_handle;
 510         struct ice_adapter *ad = &dcf_ad->parent;
 511         struct ice_dcf_hw *hw = &dcf_ad->real_hw;
 512         int ret;
 513
 514         ad->pf.adapter_stopped = 0;
 515
 516         hw->num_queue_pairs = RTE_MAX(dev->data->nb_rx_queues,
 517                                       dev->data->nb_tx_queues);
 518
 519         ret = ice_dcf_init_rx_queues(dev);
 520         if (ret) {
 521                 PMD_DRV_LOG(ERR, "Fail to init queues");
 522                 return ret;
 523         }
 524
 525         if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 526                 ret = ice_dcf_init_rss(hw);
 527                 if (ret) {
 528                         PMD_DRV_LOG(ERR, "Failed to configure RSS");
 529                         return ret;
 530                 }
 531         }
 532
 533         ret = ice_dcf_configure_queues(hw);
 534         if (ret) {
 535                 PMD_DRV_LOG(ERR, "Fail to config queues");
 536                 return ret;
 537         }
 538
 539         ret = ice_dcf_config_rx_queues_irqs(dev, intr_handle);
 540         if (ret) {
 541                 PMD_DRV_LOG(ERR, "Fail to config rx queues' irqs");
 542                 return ret;
 543         }
 544
 545         if (dev->data->dev_conf.intr_conf.rxq != 0) {
 546                 rte_intr_disable(intr_handle);
 547                 rte_intr_enable(intr_handle);
 548         }
 549
 550         ret = ice_dcf_start_queues(dev);
 551         if (ret) {
 552                 PMD_DRV_LOG(ERR, "Failed to enable queues");
 553                 return ret;
 554         }
 555
 556         ret = ice_dcf_add_del_all_mac_addr(hw, true);
 557         if (ret) {
 558                 PMD_DRV_LOG(ERR, "Failed to add mac addr");
 559                 return ret;
 560         }
 561
 562         dev->data->dev_link.link_status = ETH_LINK_UP;
 563
 564         return 0;
 565 }
 566
 567 static void
 568 ice_dcf_stop_queues(struct rte_eth_dev *dev)
 569 {
 570         struct ice_dcf_adapter *ad = dev->data->dev_private;
 571         struct ice_dcf_hw *hw = &ad->real_hw;
 572         struct ice_rx_queue *rxq;
 573         struct ice_tx_queue *txq;
 574         int ret, i;
 575
 576         /* Stop All queues */
 577         ret = ice_dcf_disable_queues(hw);
 578         if (ret)
 579                 PMD_DRV_LOG(WARNING, "Fail to stop queues");
 580
 581         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 582                 txq = dev->data->tx_queues[i];
 583                 if (!txq)
 584                         continue;
 585                 txq->tx_rel_mbufs(txq);
 586                 reset_tx_queue(txq);
 587                 dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
 588         }
 589         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 590                 rxq = dev->data->rx_queues[i];
 591                 if (!rxq)
 592                         continue;
 593                 rxq->rx_rel_mbufs(rxq);
 594                 reset_rx_queue(rxq);
 595                 dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
 596         }
 597 }
 598
 599 static int
 600 ice_dcf_dev_stop(struct rte_eth_dev *dev)
 601 {
 602         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
 603         struct rte_intr_handle *intr_handle = dev->intr_handle;
 604         struct ice_adapter *ad = &dcf_ad->parent;
 605
 606         if (ad->pf.adapter_stopped == 1) {
 607                 PMD_DRV_LOG(DEBUG, "Port is already stopped");
 608                 return 0;
 609         }
 610
 611         /* Stop the VF representors for this device */
 612         ice_dcf_vf_repr_stop_all(dcf_ad);
 613
 614         ice_dcf_stop_queues(dev);
 615
 616         rte_intr_efd_disable(intr_handle);
 617         if (intr_handle->intr_vec) {
 618                 rte_free(intr_handle->intr_vec);
 619                 intr_handle->intr_vec = NULL;
 620         }
 621
 622         ice_dcf_add_del_all_mac_addr(&dcf_ad->real_hw, false);
 623         dev->data->dev_link.link_status = ETH_LINK_DOWN;
 624         ad->pf.adapter_stopped = 1;
 625         dcf_ad->real_hw.tm_conf.committed = false;
 626
 627         return 0;
 628 }
 629
 630 static int
 631 ice_dcf_dev_configure(struct rte_eth_dev *dev)
 632 {
 633         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
 634         struct ice_adapter *ad = &dcf_ad->parent;
 635
 636         ad->rx_bulk_alloc_allowed = true;
 637         ad->tx_simple_allowed = true;
 638
 639         if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
 640                 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
 641
 642         return 0;
 643 }
 644
 645 static int
 646 ice_dcf_dev_info_get(struct rte_eth_dev *dev,
 647                      struct rte_eth_dev_info *dev_info)
 648 {
 649         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 650         struct ice_dcf_hw *hw = &adapter->real_hw;
 651
 652         dev_info->max_mac_addrs = 1;
 653         dev_info->max_rx_queues = hw->vsi_res->num_queue_pairs;
 654         dev_info->max_tx_queues = hw->vsi_res->num_queue_pairs;
 655         dev_info->min_rx_bufsize = ICE_BUF_SIZE_MIN;
 656         dev_info->max_rx_pktlen = ICE_FRAME_SIZE_MAX;
 657         dev_info->hash_key_size = hw->vf_res->rss_key_size;
 658         dev_info->reta_size = hw->vf_res->rss_lut_size;
 659         dev_info->flow_type_rss_offloads = ICE_RSS_OFFLOAD_ALL;
 660
 661         dev_info->rx_offload_capa =
 662                 DEV_RX_OFFLOAD_VLAN_STRIP |
 663                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 664                 DEV_RX_OFFLOAD_UDP_CKSUM |
 665                 DEV_RX_OFFLOAD_TCP_CKSUM |
 666                 DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
 667                 DEV_RX_OFFLOAD_SCATTER |
 668                 DEV_RX_OFFLOAD_JUMBO_FRAME |
 669                 DEV_RX_OFFLOAD_VLAN_FILTER |
 670                 DEV_RX_OFFLOAD_RSS_HASH;
 671         dev_info->tx_offload_capa =
 672                 DEV_TX_OFFLOAD_VLAN_INSERT |
 673                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 674                 DEV_TX_OFFLOAD_UDP_CKSUM |
 675                 DEV_TX_OFFLOAD_TCP_CKSUM |
 676                 DEV_TX_OFFLOAD_SCTP_CKSUM |
 677                 DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
 678                 DEV_TX_OFFLOAD_TCP_TSO |
 679                 DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
 680                 DEV_TX_OFFLOAD_GRE_TNL_TSO |
 681                 DEV_TX_OFFLOAD_IPIP_TNL_TSO |
 682                 DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
 683                 DEV_TX_OFFLOAD_MULTI_SEGS;
 684
 685         dev_info->default_rxconf = (struct rte_eth_rxconf) {
 686                 .rx_thresh = {
 687                         .pthresh = ICE_DEFAULT_RX_PTHRESH,
 688                         .hthresh = ICE_DEFAULT_RX_HTHRESH,
 689                         .wthresh = ICE_DEFAULT_RX_WTHRESH,
 690                 },
 691                 .rx_free_thresh = ICE_DEFAULT_RX_FREE_THRESH,
 692                 .rx_drop_en = 0,
 693                 .offloads = 0,
 694         };
 695
 696         dev_info->default_txconf = (struct rte_eth_txconf) {
 697                 .tx_thresh = {
 698                         .pthresh = ICE_DEFAULT_TX_PTHRESH,
 699                         .hthresh = ICE_DEFAULT_TX_HTHRESH,
 700                         .wthresh = ICE_DEFAULT_TX_WTHRESH,
 701                 },
 702                 .tx_free_thresh = ICE_DEFAULT_TX_FREE_THRESH,
 703                 .tx_rs_thresh = ICE_DEFAULT_TX_RSBIT_THRESH,
 704                 .offloads = 0,
 705         };
 706
 707         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 708                 .nb_max = ICE_MAX_RING_DESC,
 709                 .nb_min = ICE_MIN_RING_DESC,
 710                 .nb_align = ICE_ALIGN_RING_DESC,
 711         };
 712
 713         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 714                 .nb_max = ICE_MAX_RING_DESC,
 715                 .nb_min = ICE_MIN_RING_DESC,
 716                 .nb_align = ICE_ALIGN_RING_DESC,
 717         };
 718
 719         return 0;
 720 }
 721
 722 static int
 723 ice_dcf_dev_promiscuous_enable(__rte_unused struct rte_eth_dev *dev)
 724 {
 725         return 0;
 726 }
 727
 728 static int
 729 ice_dcf_dev_promiscuous_disable(__rte_unused struct rte_eth_dev *dev)
 730 {
 731         return 0;
 732 }
 733
 734 static int
 735 ice_dcf_dev_allmulticast_enable(__rte_unused struct rte_eth_dev *dev)
 736 {
 737         return 0;
 738 }
 739
 740 static int
 741 ice_dcf_dev_allmulticast_disable(__rte_unused struct rte_eth_dev *dev)
 742 {
 743         return 0;
 744 }
 745
 746 static int
 747 ice_dcf_dev_flow_ops_get(struct rte_eth_dev *dev,
 748                          const struct rte_flow_ops **ops)
 749 {
 750         if (!dev)
 751                 return -EINVAL;
 752
 753         *ops = &ice_flow_ops;
 754         return 0;
 755 }
 756
 757 #define ICE_DCF_32_BIT_WIDTH (CHAR_BIT * 4)
 758 #define ICE_DCF_48_BIT_WIDTH (CHAR_BIT * 6)
 759 #define ICE_DCF_48_BIT_MASK  RTE_LEN2MASK(ICE_DCF_48_BIT_WIDTH, uint64_t)
 760
 761 static void
 762 ice_dcf_stat_update_48(uint64_t *offset, uint64_t *stat)
 763 {
 764         if (*stat >= *offset)
 765                 *stat = *stat - *offset;
 766         else
 767                 *stat = (uint64_t)((*stat +
 768                         ((uint64_t)1 << ICE_DCF_48_BIT_WIDTH)) - *offset);
 769
 770         *stat &= ICE_DCF_48_BIT_MASK;
 771 }
 772
 773 static void
 774 ice_dcf_stat_update_32(uint64_t *offset, uint64_t *stat)
 775 {
 776         if (*stat >= *offset)
 777                 *stat = (uint64_t)(*stat - *offset);
 778         else
 779                 *stat = (uint64_t)((*stat +
 780                         ((uint64_t)1 << ICE_DCF_32_BIT_WIDTH)) - *offset);
 781 }
 782
 783 static void
 784 ice_dcf_update_stats(struct virtchnl_eth_stats *oes,
 785                      struct virtchnl_eth_stats *nes)
 786 {
 787         ice_dcf_stat_update_48(&oes->rx_bytes, &nes->rx_bytes);
 788         ice_dcf_stat_update_48(&oes->rx_unicast, &nes->rx_unicast);
 789         ice_dcf_stat_update_48(&oes->rx_multicast, &nes->rx_multicast);
 790         ice_dcf_stat_update_48(&oes->rx_broadcast, &nes->rx_broadcast);
 791         ice_dcf_stat_update_32(&oes->rx_discards, &nes->rx_discards);
 792         ice_dcf_stat_update_48(&oes->tx_bytes, &nes->tx_bytes);
 793         ice_dcf_stat_update_48(&oes->tx_unicast, &nes->tx_unicast);
 794         ice_dcf_stat_update_48(&oes->tx_multicast, &nes->tx_multicast);
 795         ice_dcf_stat_update_48(&oes->tx_broadcast, &nes->tx_broadcast);
 796         ice_dcf_stat_update_32(&oes->tx_errors, &nes->tx_errors);
 797         ice_dcf_stat_update_32(&oes->tx_discards, &nes->tx_discards);
 798 }
 799
 800
 801 static int
 802 ice_dcf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 803 {
 804         struct ice_dcf_adapter *ad = dev->data->dev_private;
 805         struct ice_dcf_hw *hw = &ad->real_hw;
 806         struct virtchnl_eth_stats pstats;
 807         int ret;
 808
 809         ret = ice_dcf_query_stats(hw, &pstats);
 810         if (ret == 0) {
 811                 ice_dcf_update_stats(&hw->eth_stats_offset, &pstats);
 812                 stats->ipackets = pstats.rx_unicast + pstats.rx_multicast +
 813                                 pstats.rx_broadcast - pstats.rx_discards;
 814                 stats->opackets = pstats.tx_broadcast + pstats.tx_multicast +
 815                                                 pstats.tx_unicast;
 816                 stats->imissed = pstats.rx_discards;
 817                 stats->oerrors = pstats.tx_errors + pstats.tx_discards;
 818                 stats->ibytes = pstats.rx_bytes;
 819                 stats->ibytes -= stats->ipackets * RTE_ETHER_CRC_LEN;
 820                 stats->obytes = pstats.tx_bytes;
 821         } else {
 822                 PMD_DRV_LOG(ERR, "Get statistics failed");
 823         }
 824         return ret;
 825 }
 826
 827 static int
 828 ice_dcf_stats_reset(struct rte_eth_dev *dev)
 829 {
 830         struct ice_dcf_adapter *ad = dev->data->dev_private;
 831         struct ice_dcf_hw *hw = &ad->real_hw;
 832         struct virtchnl_eth_stats pstats;
 833         int ret;
 834
 835         /* read stat values to clear hardware registers */
 836         ret = ice_dcf_query_stats(hw, &pstats);
 837         if (ret != 0)
 838                 return ret;
 839
 840         /* set stats offset base on current values */
 841         hw->eth_stats_offset = pstats;
 842
 843         return 0;
 844 }
 845
 846 static void
 847 ice_dcf_free_repr_info(struct ice_dcf_adapter *dcf_adapter)
 848 {
 849         if (dcf_adapter->repr_infos) {
 850                 rte_free(dcf_adapter->repr_infos);
 851                 dcf_adapter->repr_infos = NULL;
 852         }
 853 }
 854
 855 static int
 856 ice_dcf_init_repr_info(struct ice_dcf_adapter *dcf_adapter)
 857 {
 858         dcf_adapter->repr_infos =
 859                         rte_calloc("ice_dcf_rep_info",
 860                                    dcf_adapter->real_hw.num_vfs,
 861                                    sizeof(dcf_adapter->repr_infos[0]), 0);
 862         if (!dcf_adapter->repr_infos) {
 863                 PMD_DRV_LOG(ERR, "Failed to alloc memory for VF representors\n");
 864                 return -ENOMEM;
 865         }
 866
 867         return 0;
 868 }
 869
 870 static int
 871 ice_dcf_dev_close(struct rte_eth_dev *dev)
 872 {
 873         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 874
 875         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 876                 return 0;
 877
 878         ice_dcf_free_repr_info(adapter);
 879         ice_dcf_uninit_parent_adapter(dev);
 880         ice_dcf_uninit_hw(dev, &adapter->real_hw);
 881
 882         return 0;
 883 }
 884
 885 int
 886 ice_dcf_link_update(struct rte_eth_dev *dev,
 887                     __rte_unused int wait_to_complete)
 888 {
 889         struct ice_dcf_adapter *ad = dev->data->dev_private;
 890         struct ice_dcf_hw *hw = &ad->real_hw;
 891         struct rte_eth_link new_link;
 892
 893         memset(&new_link, 0, sizeof(new_link));
 894
 895         /* Only read status info stored in VF, and the info is updated
 896          * when receive LINK_CHANGE event from PF by virtchnl.
 897          */
 898         switch (hw->link_speed) {
 899         case 10:
 900                 new_link.link_speed = ETH_SPEED_NUM_10M;
 901                 break;
 902         case 100:
 903                 new_link.link_speed = ETH_SPEED_NUM_100M;
 904                 break;
 905         case 1000:
 906                 new_link.link_speed = ETH_SPEED_NUM_1G;
 907                 break;
 908         case 10000:
 909                 new_link.link_speed = ETH_SPEED_NUM_10G;
 910                 break;
 911         case 20000:
 912                 new_link.link_speed = ETH_SPEED_NUM_20G;
 913                 break;
 914         case 25000:
 915                 new_link.link_speed = ETH_SPEED_NUM_25G;
 916                 break;
 917         case 40000:
 918                 new_link.link_speed = ETH_SPEED_NUM_40G;
 919                 break;
 920         case 50000:
 921                 new_link.link_speed = ETH_SPEED_NUM_50G;
 922                 break;
 923         case 100000:
 924                 new_link.link_speed = ETH_SPEED_NUM_100G;
 925                 break;
 926         default:
 927                 new_link.link_speed = ETH_SPEED_NUM_NONE;
 928                 break;
 929         }
 930
 931         new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
 932         new_link.link_status = hw->link_up ? ETH_LINK_UP :
 933                                              ETH_LINK_DOWN;
 934         new_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
 935                                 ETH_LINK_SPEED_FIXED);
 936
 937         return rte_eth_linkstatus_set(dev, &new_link);
 938 }
 939
 940 /* Add UDP tunneling port */
 941 static int
 942 ice_dcf_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
 943                                 struct rte_eth_udp_tunnel *udp_tunnel)
 944 {
 945         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 946         struct ice_adapter *parent_adapter = &adapter->parent;
 947         struct ice_hw *parent_hw = &parent_adapter->hw;
 948         int ret = 0;
 949
 950         if (!udp_tunnel)
 951                 return -EINVAL;
 952
 953         switch (udp_tunnel->prot_type) {
 954         case RTE_TUNNEL_TYPE_VXLAN:
 955                 ret = ice_create_tunnel(parent_hw, TNL_VXLAN,
 956                                         udp_tunnel->udp_port);
 957                 break;
 958         case RTE_TUNNEL_TYPE_ECPRI:
 959                 ret = ice_create_tunnel(parent_hw, TNL_ECPRI,
 960                                         udp_tunnel->udp_port);
 961                 break;
 962         default:
 963                 PMD_DRV_LOG(ERR, "Invalid tunnel type");
 964                 ret = -EINVAL;
 965                 break;
 966         }
 967
 968         return ret;
 969 }
 970
 971 /* Delete UDP tunneling port */
 972 static int
 973 ice_dcf_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
 974                                 struct rte_eth_udp_tunnel *udp_tunnel)
 975 {
 976         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 977         struct ice_adapter *parent_adapter = &adapter->parent;
 978         struct ice_hw *parent_hw = &parent_adapter->hw;
 979         int ret = 0;
 980
 981         if (!udp_tunnel)
 982                 return -EINVAL;
 983
 984         switch (udp_tunnel->prot_type) {
 985         case RTE_TUNNEL_TYPE_VXLAN:
 986         case RTE_TUNNEL_TYPE_ECPRI:
 987                 ret = ice_destroy_tunnel(parent_hw, udp_tunnel->udp_port, 0);
 988                 break;
 989         default:
 990                 PMD_DRV_LOG(ERR, "Invalid tunnel type");
 991                 ret = -EINVAL;
 992                 break;
 993         }
 994
 995         return ret;
 996 }
 997
 998 static int
 999 ice_dcf_tm_ops_get(struct rte_eth_dev *dev __rte_unused,
1000                 void *arg)
1001 {
1002         if (!arg)
1003                 return -EINVAL;
1004
1005         *(const void **)arg = &ice_dcf_tm_ops;
1006
1007         return 0;
1008 }
1009
1010 static const struct eth_dev_ops ice_dcf_eth_dev_ops = {
1011         .dev_start               = ice_dcf_dev_start,
1012         .dev_stop                = ice_dcf_dev_stop,
1013         .dev_close               = ice_dcf_dev_close,
1014         .dev_configure           = ice_dcf_dev_configure,
1015         .dev_infos_get           = ice_dcf_dev_info_get,
1016         .rx_queue_setup          = ice_rx_queue_setup,
1017         .tx_queue_setup          = ice_tx_queue_setup,
1018         .rx_queue_release        = ice_rx_queue_release,
1019         .tx_queue_release        = ice_tx_queue_release,
1020         .rx_queue_start          = ice_dcf_rx_queue_start,
1021         .tx_queue_start          = ice_dcf_tx_queue_start,
1022         .rx_queue_stop           = ice_dcf_rx_queue_stop,
1023         .tx_queue_stop           = ice_dcf_tx_queue_stop,
1024         .link_update             = ice_dcf_link_update,
1025         .stats_get               = ice_dcf_stats_get,
1026         .stats_reset             = ice_dcf_stats_reset,
1027         .promiscuous_enable      = ice_dcf_dev_promiscuous_enable,
1028         .promiscuous_disable     = ice_dcf_dev_promiscuous_disable,
1029         .allmulticast_enable     = ice_dcf_dev_allmulticast_enable,
1030         .allmulticast_disable    = ice_dcf_dev_allmulticast_disable,
1031         .flow_ops_get            = ice_dcf_dev_flow_ops_get,
1032         .udp_tunnel_port_add     = ice_dcf_dev_udp_tunnel_port_add,
1033         .udp_tunnel_port_del     = ice_dcf_dev_udp_tunnel_port_del,
1034         .tm_ops_get              = ice_dcf_tm_ops_get,
1035 };
1036
1037 static int
1038 ice_dcf_dev_init(struct rte_eth_dev *eth_dev)
1039 {
1040         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
1041
1042         eth_dev->dev_ops = &ice_dcf_eth_dev_ops;
1043         eth_dev->rx_pkt_burst = ice_dcf_recv_pkts;
1044         eth_dev->tx_pkt_burst = ice_dcf_xmit_pkts;
1045
1046         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1047                 return 0;
1048
1049         eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1050
1051         adapter->real_hw.vc_event_msg_cb = ice_dcf_handle_pf_event_msg;
1052         if (ice_dcf_init_hw(eth_dev, &adapter->real_hw) != 0) {
1053                 PMD_INIT_LOG(ERR, "Failed to init DCF hardware");
1054                 return -1;
1055         }
1056
1057         if (ice_dcf_init_parent_adapter(eth_dev) != 0) {
1058                 PMD_INIT_LOG(ERR, "Failed to init DCF parent adapter");
1059                 ice_dcf_uninit_hw(eth_dev, &adapter->real_hw);
1060                 return -1;
1061         }
1062
1063         return 0;
1064 }
1065
1066 static int
1067 ice_dcf_dev_uninit(struct rte_eth_dev *eth_dev)
1068 {
1069         ice_dcf_dev_close(eth_dev);
1070
1071         return 0;
1072 }
1073
1074 static int
1075 ice_dcf_cap_check_handler(__rte_unused const char *key,
1076                           const char *value, __rte_unused void *opaque)
1077 {
1078         if (strcmp(value, "dcf"))
1079                 return -1;
1080
1081         return 0;
1082 }
1083
1084 static int
1085 ice_dcf_cap_selected(struct rte_devargs *devargs)
1086 {
1087         struct rte_kvargs *kvlist;
1088         const char *key = "cap";
1089         int ret = 0;
1090
1091         if (devargs == NULL)
1092                 return 0;
1093
1094         kvlist = rte_kvargs_parse(devargs->args, NULL);
1095         if (kvlist == NULL)
1096                 return 0;
1097
1098         if (!rte_kvargs_count(kvlist, key))
1099                 goto exit;
1100
1101         /* dcf capability selected when there's a key-value pair: cap=dcf */
1102         if (rte_kvargs_process(kvlist, key,
1103                                ice_dcf_cap_check_handler, NULL) < 0)
1104                 goto exit;
1105
1106         ret = 1;
1107
1108 exit:
1109         rte_kvargs_free(kvlist);
1110         return ret;
1111 }
1112
1113 static int
1114 eth_ice_dcf_pci_probe(__rte_unused struct rte_pci_driver *pci_drv,
1115                       struct rte_pci_device *pci_dev)
1116 {
1117         struct rte_eth_devargs eth_da = { .nb_representor_ports = 0 };
1118         struct ice_dcf_vf_repr_param repr_param;
1119         char repr_name[RTE_ETH_NAME_MAX_LEN];
1120         struct ice_dcf_adapter *dcf_adapter;
1121         struct rte_eth_dev *dcf_ethdev;
1122         uint16_t dcf_vsi_id;
1123         int i, ret;
1124
1125         if (!ice_dcf_cap_selected(pci_dev->device.devargs))
1126                 return 1;
1127
1128         ret = rte_eth_devargs_parse(pci_dev->device.devargs->args, &eth_da);
1129         if (ret)
1130                 return ret;
1131
1132         ret = rte_eth_dev_pci_generic_probe(pci_dev,
1133                                             sizeof(struct ice_dcf_adapter),
1134                                             ice_dcf_dev_init);
1135         if (ret || !eth_da.nb_representor_ports)
1136                 return ret;
1137         if (eth_da.type != RTE_ETH_REPRESENTOR_VF)
1138                 return -ENOTSUP;
1139
1140         dcf_ethdev = rte_eth_dev_allocated(pci_dev->device.name);
1141         if (dcf_ethdev == NULL)
1142                 return -ENODEV;
1143
1144         dcf_adapter = dcf_ethdev->data->dev_private;
1145         ret = ice_dcf_init_repr_info(dcf_adapter);
1146         if (ret)
1147                 return ret;
1148
1149         if (eth_da.nb_representor_ports > dcf_adapter->real_hw.num_vfs ||
1150             eth_da.nb_representor_ports >= RTE_MAX_ETHPORTS) {
1151                 PMD_DRV_LOG(ERR, "the number of port representors is too large: %u",
1152                             eth_da.nb_representor_ports);
1153                 ice_dcf_free_repr_info(dcf_adapter);
1154                 return -EINVAL;
1155         }
1156
1157         dcf_vsi_id = dcf_adapter->real_hw.vsi_id | VIRTCHNL_DCF_VF_VSI_VALID;
1158
1159         repr_param.dcf_eth_dev = dcf_ethdev;
1160         repr_param.switch_domain_id = 0;
1161
1162         for (i = 0; i < eth_da.nb_representor_ports; i++) {
1163                 uint16_t vf_id = eth_da.representor_ports[i];
1164                 struct rte_eth_dev *vf_rep_eth_dev;
1165
1166                 if (vf_id >= dcf_adapter->real_hw.num_vfs) {
1167                         PMD_DRV_LOG(ERR, "VF ID %u is out of range (0 ~ %u)",
1168                                     vf_id, dcf_adapter->real_hw.num_vfs - 1);
1169                         ret = -EINVAL;
1170                         break;
1171                 }
1172
1173                 if (dcf_adapter->real_hw.vf_vsi_map[vf_id] == dcf_vsi_id) {
1174                         PMD_DRV_LOG(ERR, "VF ID %u is DCF's ID.\n", vf_id);
1175                         ret = -EINVAL;
1176                         break;
1177                 }
1178
1179                 repr_param.vf_id = vf_id;
1180                 snprintf(repr_name, sizeof(repr_name), "net_%s_representor_%u",
1181                          pci_dev->device.name, vf_id);
1182                 ret = rte_eth_dev_create(&pci_dev->device, repr_name,
1183                                          sizeof(struct ice_dcf_vf_repr),
1184                                          NULL, NULL, ice_dcf_vf_repr_init,
1185                                          &repr_param);
1186                 if (ret) {
1187                         PMD_DRV_LOG(ERR, "failed to create DCF VF representor %s",
1188                                     repr_name);
1189                         break;
1190                 }
1191
1192                 vf_rep_eth_dev = rte_eth_dev_allocated(repr_name);
1193                 if (!vf_rep_eth_dev) {
1194                         PMD_DRV_LOG(ERR,
1195                                     "Failed to find the ethdev for DCF VF representor: %s",
1196                                     repr_name);
1197                         ret = -ENODEV;
1198                         break;
1199                 }
1200
1201                 dcf_adapter->repr_infos[vf_id].vf_rep_eth_dev = vf_rep_eth_dev;
1202                 dcf_adapter->num_reprs++;
1203         }
1204
1205         return ret;
1206 }
1207
1208 static int
1209 eth_ice_dcf_pci_remove(struct rte_pci_device *pci_dev)
1210 {
1211         struct rte_eth_dev *eth_dev;
1212
1213         eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
1214         if (!eth_dev)
1215                 return 0;
1216
1217         if (eth_dev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR)
1218                 return rte_eth_dev_pci_generic_remove(pci_dev,
1219                                                       ice_dcf_vf_repr_uninit);
1220         else
1221                 return rte_eth_dev_pci_generic_remove(pci_dev,
1222                                                       ice_dcf_dev_uninit);
1223 }
1224
1225 static const struct rte_pci_id pci_id_ice_dcf_map[] = {
1226         { RTE_PCI_DEVICE(IAVF_INTEL_VENDOR_ID, IAVF_DEV_ID_ADAPTIVE_VF) },
1227         { .vendor_id = 0, /* sentinel */ },
1228 };
1229
1230 static struct rte_pci_driver rte_ice_dcf_pmd = {
1231         .id_table = pci_id_ice_dcf_map,
1232         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
1233         .probe = eth_ice_dcf_pci_probe,
1234         .remove = eth_ice_dcf_pci_remove,
1235 };
1236
1237 RTE_PMD_REGISTER_PCI(net_ice_dcf, rte_ice_dcf_pmd);
1238 RTE_PMD_REGISTER_PCI_TABLE(net_ice_dcf, pci_id_ice_dcf_map);
1239 RTE_PMD_REGISTER_KMOD_DEP(net_ice_dcf, "* igb_uio | vfio-pci");
1240 RTE_PMD_REGISTER_PARAM_STRING(net_ice_dcf, "cap=dcf");