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/queue.h>
   8 #include <sys/types.h>
   9 #include <unistd.h>
  10
  11 #include <rte_interrupts.h>
  12 #include <rte_debug.h>
  13 #include <rte_pci.h>
  14 #include <rte_atomic.h>
  15 #include <rte_eal.h>
  16 #include <rte_ether.h>
  17 #include <ethdev_pci.h>
  18 #include <rte_kvargs.h>
  19 #include <rte_malloc.h>
  20 #include <rte_memzone.h>
  21 #include <rte_dev.h>
  22
  23 #include <iavf_devids.h>
  24
  25 #include "ice_generic_flow.h"
  26 #include "ice_dcf_ethdev.h"
  27 #include "ice_rxtx.h"
  28
  29 static int
  30 ice_dcf_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
  31                                 struct rte_eth_udp_tunnel *udp_tunnel);
  32 static int
  33 ice_dcf_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
  34                                 struct rte_eth_udp_tunnel *udp_tunnel);
  35
  36 static int
  37 ice_dcf_dev_init(struct rte_eth_dev *eth_dev);
  38
  39 static int
  40 ice_dcf_dev_uninit(struct rte_eth_dev *eth_dev);
  41
  42 static uint16_t
  43 ice_dcf_recv_pkts(__rte_unused void *rx_queue,
  44                   __rte_unused struct rte_mbuf **bufs,
  45                   __rte_unused uint16_t nb_pkts)
  46 {
  47         return 0;
  48 }
  49
  50 static uint16_t
  51 ice_dcf_xmit_pkts(__rte_unused void *tx_queue,
  52                   __rte_unused struct rte_mbuf **bufs,
  53                   __rte_unused uint16_t nb_pkts)
  54 {
  55         return 0;
  56 }
  57
  58 static int
  59 ice_dcf_init_rxq(struct rte_eth_dev *dev, struct ice_rx_queue *rxq)
  60 {
  61         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
  62         struct rte_eth_dev_data *dev_data = dev->data;
  63         struct iavf_hw *hw = &dcf_ad->real_hw.avf;
  64         uint16_t buf_size, max_pkt_len;
  65
  66         buf_size = rte_pktmbuf_data_room_size(rxq->mp) - RTE_PKTMBUF_HEADROOM;
  67         rxq->rx_hdr_len = 0;
  68         rxq->rx_buf_len = RTE_ALIGN(buf_size, (1 << ICE_RLAN_CTX_DBUF_S));
  69         max_pkt_len = RTE_MIN((uint32_t)
  70                               ICE_SUPPORT_CHAIN_NUM * rxq->rx_buf_len,
  71                               dev->data->dev_conf.rxmode.max_rx_pkt_len);
  72
  73         /* Check if the jumbo frame and maximum packet length are set
  74          * correctly.
  75          */
  76         if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
  77                 if (max_pkt_len <= ICE_ETH_MAX_LEN ||
  78                     max_pkt_len > ICE_FRAME_SIZE_MAX) {
  79                         PMD_DRV_LOG(ERR, "maximum packet length must be "
  80                                     "larger than %u and smaller than %u, "
  81                                     "as jumbo frame is enabled",
  82                                     (uint32_t)ICE_ETH_MAX_LEN,
  83                                     (uint32_t)ICE_FRAME_SIZE_MAX);
  84                         return -EINVAL;
  85                 }
  86         } else {
  87                 if (max_pkt_len < RTE_ETHER_MIN_LEN ||
  88                     max_pkt_len > ICE_ETH_MAX_LEN) {
  89                         PMD_DRV_LOG(ERR, "maximum packet length must be "
  90                                     "larger than %u and smaller than %u, "
  91                                     "as jumbo frame is disabled",
  92                                     (uint32_t)RTE_ETHER_MIN_LEN,
  93                                     (uint32_t)ICE_ETH_MAX_LEN);
  94                         return -EINVAL;
  95                 }
  96         }
  97
  98         rxq->max_pkt_len = max_pkt_len;
  99         if ((dev_data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SCATTER) ||
 100             (rxq->max_pkt_len + 2 * ICE_VLAN_TAG_SIZE) > buf_size) {
 101                 dev_data->scattered_rx = 1;
 102         }
 103         rxq->qrx_tail = hw->hw_addr + IAVF_QRX_TAIL1(rxq->queue_id);
 104         IAVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 105         IAVF_WRITE_FLUSH(hw);
 106
 107         return 0;
 108 }
 109
 110 static int
 111 ice_dcf_init_rx_queues(struct rte_eth_dev *dev)
 112 {
 113         struct ice_rx_queue **rxq =
 114                 (struct ice_rx_queue **)dev->data->rx_queues;
 115         int i, ret;
 116
 117         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 118                 if (!rxq[i] || !rxq[i]->q_set)
 119                         continue;
 120                 ret = ice_dcf_init_rxq(dev, rxq[i]);
 121                 if (ret)
 122                         return ret;
 123         }
 124
 125         ice_set_rx_function(dev);
 126         ice_set_tx_function(dev);
 127
 128         return 0;
 129 }
 130
 131 #define IAVF_MISC_VEC_ID                RTE_INTR_VEC_ZERO_OFFSET
 132 #define IAVF_RX_VEC_START               RTE_INTR_VEC_RXTX_OFFSET
 133
 134 #define IAVF_ITR_INDEX_DEFAULT          0
 135 #define IAVF_QUEUE_ITR_INTERVAL_DEFAULT 32 /* 32 us */
 136 #define IAVF_QUEUE_ITR_INTERVAL_MAX     8160 /* 8160 us */
 137
 138 static inline uint16_t
 139 iavf_calc_itr_interval(int16_t interval)
 140 {
 141         if (interval < 0 || interval > IAVF_QUEUE_ITR_INTERVAL_MAX)
 142                 interval = IAVF_QUEUE_ITR_INTERVAL_DEFAULT;
 143
 144         /* Convert to hardware count, as writing each 1 represents 2 us */
 145         return interval / 2;
 146 }
 147
 148 static int
 149 ice_dcf_config_rx_queues_irqs(struct rte_eth_dev *dev,
 150                                      struct rte_intr_handle *intr_handle)
 151 {
 152         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 153         struct ice_dcf_hw *hw = &adapter->real_hw;
 154         uint16_t interval, i;
 155         int vec;
 156
 157         if (rte_intr_cap_multiple(intr_handle) &&
 158             dev->data->dev_conf.intr_conf.rxq) {
 159                 if (rte_intr_efd_enable(intr_handle, dev->data->nb_rx_queues))
 160                         return -1;
 161         }
 162
 163         if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
 164                 intr_handle->intr_vec =
 165                         rte_zmalloc("intr_vec",
 166                                     dev->data->nb_rx_queues * sizeof(int), 0);
 167                 if (!intr_handle->intr_vec) {
 168                         PMD_DRV_LOG(ERR, "Failed to allocate %d rx intr_vec",
 169                                     dev->data->nb_rx_queues);
 170                         return -1;
 171                 }
 172         }
 173
 174         if (!dev->data->dev_conf.intr_conf.rxq ||
 175             !rte_intr_dp_is_en(intr_handle)) {
 176                 /* Rx interrupt disabled, Map interrupt only for writeback */
 177                 hw->nb_msix = 1;
 178                 if (hw->vf_res->vf_cap_flags &
 179                     VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) {
 180                         /* If WB_ON_ITR supports, enable it */
 181                         hw->msix_base = IAVF_RX_VEC_START;
 182                         /* Set the ITR for index zero, to 2us to make sure that
 183                          * we leave time for aggregation to occur, but don't
 184                          * increase latency dramatically.
 185                          */
 186                         IAVF_WRITE_REG(&hw->avf,
 187                                        IAVF_VFINT_DYN_CTLN1(hw->msix_base - 1),
 188                                        (0 << IAVF_VFINT_DYN_CTLN1_ITR_INDX_SHIFT) |
 189                                        IAVF_VFINT_DYN_CTLN1_WB_ON_ITR_MASK |
 190                                        (2UL << IAVF_VFINT_DYN_CTLN1_INTERVAL_SHIFT));
 191                 } else {
 192                         /* If no WB_ON_ITR offload flags, need to set
 193                          * interrupt for descriptor write back.
 194                          */
 195                         hw->msix_base = IAVF_MISC_VEC_ID;
 196
 197                         /* set ITR to max */
 198                         interval =
 199                         iavf_calc_itr_interval(IAVF_QUEUE_ITR_INTERVAL_MAX);
 200                         IAVF_WRITE_REG(&hw->avf, IAVF_VFINT_DYN_CTL01,
 201                                        IAVF_VFINT_DYN_CTL01_INTENA_MASK |
 202                                        (IAVF_ITR_INDEX_DEFAULT <<
 203                                         IAVF_VFINT_DYN_CTL01_ITR_INDX_SHIFT) |
 204                                        (interval <<
 205                                         IAVF_VFINT_DYN_CTL01_INTERVAL_SHIFT));
 206                 }
 207                 IAVF_WRITE_FLUSH(&hw->avf);
 208                 /* map all queues to the same interrupt */
 209                 for (i = 0; i < dev->data->nb_rx_queues; i++)
 210                         hw->rxq_map[hw->msix_base] |= 1 << i;
 211         } else {
 212                 if (!rte_intr_allow_others(intr_handle)) {
 213                         hw->nb_msix = 1;
 214                         hw->msix_base = IAVF_MISC_VEC_ID;
 215                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 216                                 hw->rxq_map[hw->msix_base] |= 1 << i;
 217                                 intr_handle->intr_vec[i] = IAVF_MISC_VEC_ID;
 218                         }
 219                         PMD_DRV_LOG(DEBUG,
 220                                     "vector %u are mapping to all Rx queues",
 221                                     hw->msix_base);
 222                 } else {
 223                         /* If Rx interrupt is reuquired, and we can use
 224                          * multi interrupts, then the vec is from 1
 225                          */
 226                         hw->nb_msix = RTE_MIN(hw->vf_res->max_vectors,
 227                                               intr_handle->nb_efd);
 228                         hw->msix_base = IAVF_MISC_VEC_ID;
 229                         vec = IAVF_MISC_VEC_ID;
 230                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 231                                 hw->rxq_map[vec] |= 1 << i;
 232                                 intr_handle->intr_vec[i] = vec++;
 233                                 if (vec >= hw->nb_msix)
 234                                         vec = IAVF_RX_VEC_START;
 235                         }
 236                         PMD_DRV_LOG(DEBUG,
 237                                     "%u vectors are mapping to %u Rx queues",
 238                                     hw->nb_msix, dev->data->nb_rx_queues);
 239                 }
 240         }
 241
 242         if (ice_dcf_config_irq_map(hw)) {
 243                 PMD_DRV_LOG(ERR, "config interrupt mapping failed");
 244                 return -1;
 245         }
 246         return 0;
 247 }
 248
 249 static int
 250 alloc_rxq_mbufs(struct ice_rx_queue *rxq)
 251 {
 252         volatile union ice_rx_flex_desc *rxd;
 253         struct rte_mbuf *mbuf = NULL;
 254         uint64_t dma_addr;
 255         uint16_t i;
 256
 257         for (i = 0; i < rxq->nb_rx_desc; i++) {
 258                 mbuf = rte_mbuf_raw_alloc(rxq->mp);
 259                 if (unlikely(!mbuf)) {
 260                         PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
 261                         return -ENOMEM;
 262                 }
 263
 264                 rte_mbuf_refcnt_set(mbuf, 1);
 265                 mbuf->next = NULL;
 266                 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 267                 mbuf->nb_segs = 1;
 268                 mbuf->port = rxq->port_id;
 269
 270                 dma_addr =
 271                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
 272
 273                 rxd = &rxq->rx_ring[i];
 274                 rxd->read.pkt_addr = dma_addr;
 275                 rxd->read.hdr_addr = 0;
 276 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
 277                 rxd->read.rsvd1 = 0;
 278                 rxd->read.rsvd2 = 0;
 279 #endif
 280
 281                 rxq->sw_ring[i].mbuf = (void *)mbuf;
 282         }
 283
 284         return 0;
 285 }
 286
 287 static int
 288 ice_dcf_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 289 {
 290         struct ice_dcf_adapter *ad = dev->data->dev_private;
 291         struct iavf_hw *hw = &ad->real_hw.avf;
 292         struct ice_rx_queue *rxq;
 293         int err = 0;
 294
 295         if (rx_queue_id >= dev->data->nb_rx_queues)
 296                 return -EINVAL;
 297
 298         rxq = dev->data->rx_queues[rx_queue_id];
 299
 300         err = alloc_rxq_mbufs(rxq);
 301         if (err) {
 302                 PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
 303                 return err;
 304         }
 305
 306         rte_wmb();
 307
 308         /* Init the RX tail register. */
 309         IAVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 310         IAVF_WRITE_FLUSH(hw);
 311
 312         /* Ready to switch the queue on */
 313         err = ice_dcf_switch_queue(&ad->real_hw, rx_queue_id, true, true);
 314         if (err) {
 315                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
 316                             rx_queue_id);
 317                 return err;
 318         }
 319
 320         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 321
 322         return 0;
 323 }
 324
 325 static inline void
 326 reset_rx_queue(struct ice_rx_queue *rxq)
 327 {
 328         uint16_t len;
 329         uint32_t i;
 330
 331         if (!rxq)
 332                 return;
 333
 334         len = rxq->nb_rx_desc + ICE_RX_MAX_BURST;
 335
 336         for (i = 0; i < len * sizeof(union ice_rx_flex_desc); i++)
 337                 ((volatile char *)rxq->rx_ring)[i] = 0;
 338
 339         memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
 340
 341         for (i = 0; i < ICE_RX_MAX_BURST; i++)
 342                 rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
 343
 344         /* for rx bulk */
 345         rxq->rx_nb_avail = 0;
 346         rxq->rx_next_avail = 0;
 347         rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
 348
 349         rxq->rx_tail = 0;
 350         rxq->nb_rx_hold = 0;
 351         rxq->pkt_first_seg = NULL;
 352         rxq->pkt_last_seg = NULL;
 353 }
 354
 355 static inline void
 356 reset_tx_queue(struct ice_tx_queue *txq)
 357 {
 358         struct ice_tx_entry *txe;
 359         uint32_t i, size;
 360         uint16_t prev;
 361
 362         if (!txq) {
 363                 PMD_DRV_LOG(DEBUG, "Pointer to txq is NULL");
 364                 return;
 365         }
 366
 367         txe = txq->sw_ring;
 368         size = sizeof(struct ice_tx_desc) * txq->nb_tx_desc;
 369         for (i = 0; i < size; i++)
 370                 ((volatile char *)txq->tx_ring)[i] = 0;
 371
 372         prev = (uint16_t)(txq->nb_tx_desc - 1);
 373         for (i = 0; i < txq->nb_tx_desc; i++) {
 374                 txq->tx_ring[i].cmd_type_offset_bsz =
 375                         rte_cpu_to_le_64(IAVF_TX_DESC_DTYPE_DESC_DONE);
 376                 txe[i].mbuf =  NULL;
 377                 txe[i].last_id = i;
 378                 txe[prev].next_id = i;
 379                 prev = i;
 380         }
 381
 382         txq->tx_tail = 0;
 383         txq->nb_tx_used = 0;
 384
 385         txq->last_desc_cleaned = txq->nb_tx_desc - 1;
 386         txq->nb_tx_free = txq->nb_tx_desc - 1;
 387
 388         txq->tx_next_dd = txq->tx_rs_thresh - 1;
 389         txq->tx_next_rs = txq->tx_rs_thresh - 1;
 390 }
 391
 392 static int
 393 ice_dcf_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 394 {
 395         struct ice_dcf_adapter *ad = dev->data->dev_private;
 396         struct ice_dcf_hw *hw = &ad->real_hw;
 397         struct ice_rx_queue *rxq;
 398         int err;
 399
 400         if (rx_queue_id >= dev->data->nb_rx_queues)
 401                 return -EINVAL;
 402
 403         err = ice_dcf_switch_queue(hw, rx_queue_id, true, false);
 404         if (err) {
 405                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
 406                             rx_queue_id);
 407                 return err;
 408         }
 409
 410         rxq = dev->data->rx_queues[rx_queue_id];
 411         rxq->rx_rel_mbufs(rxq);
 412         reset_rx_queue(rxq);
 413         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 414
 415         return 0;
 416 }
 417
 418 static int
 419 ice_dcf_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 420 {
 421         struct ice_dcf_adapter *ad = dev->data->dev_private;
 422         struct iavf_hw *hw = &ad->real_hw.avf;
 423         struct ice_tx_queue *txq;
 424         int err = 0;
 425
 426         if (tx_queue_id >= dev->data->nb_tx_queues)
 427                 return -EINVAL;
 428
 429         txq = dev->data->tx_queues[tx_queue_id];
 430
 431         /* Init the RX tail register. */
 432         txq->qtx_tail = hw->hw_addr + IAVF_QTX_TAIL1(tx_queue_id);
 433         IAVF_PCI_REG_WRITE(txq->qtx_tail, 0);
 434         IAVF_WRITE_FLUSH(hw);
 435
 436         /* Ready to switch the queue on */
 437         err = ice_dcf_switch_queue(&ad->real_hw, tx_queue_id, false, true);
 438
 439         if (err) {
 440                 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on",
 441                             tx_queue_id);
 442                 return err;
 443         }
 444
 445         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 446
 447         return 0;
 448 }
 449
 450 static int
 451 ice_dcf_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 452 {
 453         struct ice_dcf_adapter *ad = dev->data->dev_private;
 454         struct ice_dcf_hw *hw = &ad->real_hw;
 455         struct ice_tx_queue *txq;
 456         int err;
 457
 458         if (tx_queue_id >= dev->data->nb_tx_queues)
 459                 return -EINVAL;
 460
 461         err = ice_dcf_switch_queue(hw, tx_queue_id, false, false);
 462         if (err) {
 463                 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u off",
 464                             tx_queue_id);
 465                 return err;
 466         }
 467
 468         txq = dev->data->tx_queues[tx_queue_id];
 469         txq->tx_rel_mbufs(txq);
 470         reset_tx_queue(txq);
 471         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 472
 473         return 0;
 474 }
 475
 476 static int
 477 ice_dcf_start_queues(struct rte_eth_dev *dev)
 478 {
 479         struct ice_rx_queue *rxq;
 480         struct ice_tx_queue *txq;
 481         int nb_rxq = 0;
 482         int nb_txq, i;
 483
 484         for (nb_txq = 0; nb_txq < dev->data->nb_tx_queues; nb_txq++) {
 485                 txq = dev->data->tx_queues[nb_txq];
 486                 if (txq->tx_deferred_start)
 487                         continue;
 488                 if (ice_dcf_tx_queue_start(dev, nb_txq) != 0) {
 489                         PMD_DRV_LOG(ERR, "Fail to start queue %u", nb_txq);
 490                         goto tx_err;
 491                 }
 492         }
 493
 494         for (nb_rxq = 0; nb_rxq < dev->data->nb_rx_queues; nb_rxq++) {
 495                 rxq = dev->data->rx_queues[nb_rxq];
 496                 if (rxq->rx_deferred_start)
 497                         continue;
 498                 if (ice_dcf_rx_queue_start(dev, nb_rxq) != 0) {
 499                         PMD_DRV_LOG(ERR, "Fail to start queue %u", nb_rxq);
 500                         goto rx_err;
 501                 }
 502         }
 503
 504         return 0;
 505
 506         /* stop the started queues if failed to start all queues */
 507 rx_err:
 508         for (i = 0; i < nb_rxq; i++)
 509                 ice_dcf_rx_queue_stop(dev, i);
 510 tx_err:
 511         for (i = 0; i < nb_txq; i++)
 512                 ice_dcf_tx_queue_stop(dev, i);
 513
 514         return -1;
 515 }
 516
 517 static int
 518 ice_dcf_dev_start(struct rte_eth_dev *dev)
 519 {
 520         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
 521         struct rte_intr_handle *intr_handle = dev->intr_handle;
 522         struct ice_adapter *ad = &dcf_ad->parent;
 523         struct ice_dcf_hw *hw = &dcf_ad->real_hw;
 524         int ret;
 525
 526         if (hw->resetting) {
 527                 PMD_DRV_LOG(ERR,
 528                             "The DCF has been reset by PF, please reinit first");
 529                 return -EIO;
 530         }
 531
 532         ad->pf.adapter_stopped = 0;
 533
 534         hw->num_queue_pairs = RTE_MAX(dev->data->nb_rx_queues,
 535                                       dev->data->nb_tx_queues);
 536
 537         ret = ice_dcf_init_rx_queues(dev);
 538         if (ret) {
 539                 PMD_DRV_LOG(ERR, "Fail to init queues");
 540                 return ret;
 541         }
 542
 543         if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 544                 ret = ice_dcf_init_rss(hw);
 545                 if (ret) {
 546                         PMD_DRV_LOG(ERR, "Failed to configure RSS");
 547                         return ret;
 548                 }
 549         }
 550
 551         ret = ice_dcf_configure_queues(hw);
 552         if (ret) {
 553                 PMD_DRV_LOG(ERR, "Fail to config queues");
 554                 return ret;
 555         }
 556
 557         ret = ice_dcf_config_rx_queues_irqs(dev, intr_handle);
 558         if (ret) {
 559                 PMD_DRV_LOG(ERR, "Fail to config rx queues' irqs");
 560                 return ret;
 561         }
 562
 563         if (dev->data->dev_conf.intr_conf.rxq != 0) {
 564                 rte_intr_disable(intr_handle);
 565                 rte_intr_enable(intr_handle);
 566         }
 567
 568         ret = ice_dcf_start_queues(dev);
 569         if (ret) {
 570                 PMD_DRV_LOG(ERR, "Failed to enable queues");
 571                 return ret;
 572         }
 573
 574         ret = ice_dcf_add_del_all_mac_addr(hw, true);
 575         if (ret) {
 576                 PMD_DRV_LOG(ERR, "Failed to add mac addr");
 577                 return ret;
 578         }
 579
 580         dev->data->dev_link.link_status = ETH_LINK_UP;
 581
 582         return 0;
 583 }
 584
 585 static void
 586 ice_dcf_stop_queues(struct rte_eth_dev *dev)
 587 {
 588         struct ice_dcf_adapter *ad = dev->data->dev_private;
 589         struct ice_dcf_hw *hw = &ad->real_hw;
 590         struct ice_rx_queue *rxq;
 591         struct ice_tx_queue *txq;
 592         int ret, i;
 593
 594         /* Stop All queues */
 595         ret = ice_dcf_disable_queues(hw);
 596         if (ret)
 597                 PMD_DRV_LOG(WARNING, "Fail to stop queues");
 598
 599         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 600                 txq = dev->data->tx_queues[i];
 601                 if (!txq)
 602                         continue;
 603                 txq->tx_rel_mbufs(txq);
 604                 reset_tx_queue(txq);
 605                 dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
 606                 dev->data->tx_queues[i] = NULL;
 607         }
 608         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 609                 rxq = dev->data->rx_queues[i];
 610                 if (!rxq)
 611                         continue;
 612                 rxq->rx_rel_mbufs(rxq);
 613                 reset_rx_queue(rxq);
 614                 dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
 615                 dev->data->rx_queues[i] = NULL;
 616         }
 617 }
 618
 619 static int
 620 ice_dcf_dev_stop(struct rte_eth_dev *dev)
 621 {
 622         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
 623         struct rte_intr_handle *intr_handle = dev->intr_handle;
 624         struct ice_adapter *ad = &dcf_ad->parent;
 625
 626         if (ad->pf.adapter_stopped == 1) {
 627                 PMD_DRV_LOG(DEBUG, "Port is already stopped");
 628                 return 0;
 629         }
 630
 631         /* Stop the VF representors for this device */
 632         ice_dcf_vf_repr_stop_all(dcf_ad);
 633
 634         ice_dcf_stop_queues(dev);
 635
 636         rte_intr_efd_disable(intr_handle);
 637         if (intr_handle->intr_vec) {
 638                 rte_free(intr_handle->intr_vec);
 639                 intr_handle->intr_vec = NULL;
 640         }
 641
 642         ice_dcf_add_del_all_mac_addr(&dcf_ad->real_hw, false);
 643         dev->data->dev_link.link_status = ETH_LINK_DOWN;
 644         ad->pf.adapter_stopped = 1;
 645
 646         return 0;
 647 }
 648
 649 static int
 650 ice_dcf_dev_configure(struct rte_eth_dev *dev)
 651 {
 652         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
 653         struct ice_adapter *ad = &dcf_ad->parent;
 654
 655         ad->rx_bulk_alloc_allowed = true;
 656         ad->tx_simple_allowed = true;
 657
 658         if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
 659                 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
 660
 661         return 0;
 662 }
 663
 664 static int
 665 ice_dcf_dev_info_get(struct rte_eth_dev *dev,
 666                      struct rte_eth_dev_info *dev_info)
 667 {
 668         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 669         struct ice_dcf_hw *hw = &adapter->real_hw;
 670
 671         dev_info->max_mac_addrs = 1;
 672         dev_info->max_rx_queues = hw->vsi_res->num_queue_pairs;
 673         dev_info->max_tx_queues = hw->vsi_res->num_queue_pairs;
 674         dev_info->min_rx_bufsize = ICE_BUF_SIZE_MIN;
 675         dev_info->max_rx_pktlen = ICE_FRAME_SIZE_MAX;
 676         dev_info->hash_key_size = hw->vf_res->rss_key_size;
 677         dev_info->reta_size = hw->vf_res->rss_lut_size;
 678         dev_info->flow_type_rss_offloads = ICE_RSS_OFFLOAD_ALL;
 679
 680         dev_info->rx_offload_capa =
 681                 DEV_RX_OFFLOAD_VLAN_STRIP |
 682                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 683                 DEV_RX_OFFLOAD_UDP_CKSUM |
 684                 DEV_RX_OFFLOAD_TCP_CKSUM |
 685                 DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
 686                 DEV_RX_OFFLOAD_SCATTER |
 687                 DEV_RX_OFFLOAD_JUMBO_FRAME |
 688                 DEV_RX_OFFLOAD_VLAN_FILTER |
 689                 DEV_RX_OFFLOAD_RSS_HASH;
 690         dev_info->tx_offload_capa =
 691                 DEV_TX_OFFLOAD_VLAN_INSERT |
 692                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 693                 DEV_TX_OFFLOAD_UDP_CKSUM |
 694                 DEV_TX_OFFLOAD_TCP_CKSUM |
 695                 DEV_TX_OFFLOAD_SCTP_CKSUM |
 696                 DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
 697                 DEV_TX_OFFLOAD_TCP_TSO |
 698                 DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
 699                 DEV_TX_OFFLOAD_GRE_TNL_TSO |
 700                 DEV_TX_OFFLOAD_IPIP_TNL_TSO |
 701                 DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
 702                 DEV_TX_OFFLOAD_MULTI_SEGS;
 703
 704         dev_info->default_rxconf = (struct rte_eth_rxconf) {
 705                 .rx_thresh = {
 706                         .pthresh = ICE_DEFAULT_RX_PTHRESH,
 707                         .hthresh = ICE_DEFAULT_RX_HTHRESH,
 708                         .wthresh = ICE_DEFAULT_RX_WTHRESH,
 709                 },
 710                 .rx_free_thresh = ICE_DEFAULT_RX_FREE_THRESH,
 711                 .rx_drop_en = 0,
 712                 .offloads = 0,
 713         };
 714
 715         dev_info->default_txconf = (struct rte_eth_txconf) {
 716                 .tx_thresh = {
 717                         .pthresh = ICE_DEFAULT_TX_PTHRESH,
 718                         .hthresh = ICE_DEFAULT_TX_HTHRESH,
 719                         .wthresh = ICE_DEFAULT_TX_WTHRESH,
 720                 },
 721                 .tx_free_thresh = ICE_DEFAULT_TX_FREE_THRESH,
 722                 .tx_rs_thresh = ICE_DEFAULT_TX_RSBIT_THRESH,
 723                 .offloads = 0,
 724         };
 725
 726         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 727                 .nb_max = ICE_MAX_RING_DESC,
 728                 .nb_min = ICE_MIN_RING_DESC,
 729                 .nb_align = ICE_ALIGN_RING_DESC,
 730         };
 731
 732         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 733                 .nb_max = ICE_MAX_RING_DESC,
 734                 .nb_min = ICE_MIN_RING_DESC,
 735                 .nb_align = ICE_ALIGN_RING_DESC,
 736         };
 737
 738         return 0;
 739 }
 740
 741 static int
 742 ice_dcf_dev_promiscuous_enable(__rte_unused struct rte_eth_dev *dev)
 743 {
 744         return 0;
 745 }
 746
 747 static int
 748 ice_dcf_dev_promiscuous_disable(__rte_unused struct rte_eth_dev *dev)
 749 {
 750         return 0;
 751 }
 752
 753 static int
 754 ice_dcf_dev_allmulticast_enable(__rte_unused struct rte_eth_dev *dev)
 755 {
 756         return 0;
 757 }
 758
 759 static int
 760 ice_dcf_dev_allmulticast_disable(__rte_unused struct rte_eth_dev *dev)
 761 {
 762         return 0;
 763 }
 764
 765 static int
 766 ice_dcf_dev_flow_ops_get(struct rte_eth_dev *dev,
 767                          const struct rte_flow_ops **ops)
 768 {
 769         if (!dev)
 770                 return -EINVAL;
 771
 772         *ops = &ice_flow_ops;
 773         return 0;
 774 }
 775
 776 #define ICE_DCF_32_BIT_WIDTH (CHAR_BIT * 4)
 777 #define ICE_DCF_48_BIT_WIDTH (CHAR_BIT * 6)
 778 #define ICE_DCF_48_BIT_MASK  RTE_LEN2MASK(ICE_DCF_48_BIT_WIDTH, uint64_t)
 779
 780 static void
 781 ice_dcf_stat_update_48(uint64_t *offset, uint64_t *stat)
 782 {
 783         if (*stat >= *offset)
 784                 *stat = *stat - *offset;
 785         else
 786                 *stat = (uint64_t)((*stat +
 787                         ((uint64_t)1 << ICE_DCF_48_BIT_WIDTH)) - *offset);
 788
 789         *stat &= ICE_DCF_48_BIT_MASK;
 790 }
 791
 792 static void
 793 ice_dcf_stat_update_32(uint64_t *offset, uint64_t *stat)
 794 {
 795         if (*stat >= *offset)
 796                 *stat = (uint64_t)(*stat - *offset);
 797         else
 798                 *stat = (uint64_t)((*stat +
 799                         ((uint64_t)1 << ICE_DCF_32_BIT_WIDTH)) - *offset);
 800 }
 801
 802 static void
 803 ice_dcf_update_stats(struct virtchnl_eth_stats *oes,
 804                      struct virtchnl_eth_stats *nes)
 805 {
 806         ice_dcf_stat_update_48(&oes->rx_bytes, &nes->rx_bytes);
 807         ice_dcf_stat_update_48(&oes->rx_unicast, &nes->rx_unicast);
 808         ice_dcf_stat_update_48(&oes->rx_multicast, &nes->rx_multicast);
 809         ice_dcf_stat_update_48(&oes->rx_broadcast, &nes->rx_broadcast);
 810         ice_dcf_stat_update_32(&oes->rx_discards, &nes->rx_discards);
 811         ice_dcf_stat_update_48(&oes->tx_bytes, &nes->tx_bytes);
 812         ice_dcf_stat_update_48(&oes->tx_unicast, &nes->tx_unicast);
 813         ice_dcf_stat_update_48(&oes->tx_multicast, &nes->tx_multicast);
 814         ice_dcf_stat_update_48(&oes->tx_broadcast, &nes->tx_broadcast);
 815         ice_dcf_stat_update_32(&oes->tx_errors, &nes->tx_errors);
 816         ice_dcf_stat_update_32(&oes->tx_discards, &nes->tx_discards);
 817 }
 818
 819
 820 static int
 821 ice_dcf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 822 {
 823         struct ice_dcf_adapter *ad = dev->data->dev_private;
 824         struct ice_dcf_hw *hw = &ad->real_hw;
 825         struct virtchnl_eth_stats pstats;
 826         int ret;
 827
 828         if (hw->resetting) {
 829                 PMD_DRV_LOG(ERR,
 830                             "The DCF has been reset by PF, please reinit first");
 831                 return -EIO;
 832         }
 833
 834         ret = ice_dcf_query_stats(hw, &pstats);
 835         if (ret == 0) {
 836                 ice_dcf_update_stats(&hw->eth_stats_offset, &pstats);
 837                 stats->ipackets = pstats.rx_unicast + pstats.rx_multicast +
 838                                 pstats.rx_broadcast - pstats.rx_discards;
 839                 stats->opackets = pstats.tx_broadcast + pstats.tx_multicast +
 840                                                 pstats.tx_unicast;
 841                 stats->imissed = pstats.rx_discards;
 842                 stats->oerrors = pstats.tx_errors + pstats.tx_discards;
 843                 stats->ibytes = pstats.rx_bytes;
 844                 stats->ibytes -= stats->ipackets * RTE_ETHER_CRC_LEN;
 845                 stats->obytes = pstats.tx_bytes;
 846         } else {
 847                 PMD_DRV_LOG(ERR, "Get statistics failed");
 848         }
 849         return ret;
 850 }
 851
 852 static int
 853 ice_dcf_stats_reset(struct rte_eth_dev *dev)
 854 {
 855         struct ice_dcf_adapter *ad = dev->data->dev_private;
 856         struct ice_dcf_hw *hw = &ad->real_hw;
 857         struct virtchnl_eth_stats pstats;
 858         int ret;
 859
 860         if (hw->resetting)
 861                 return 0;
 862
 863         /* read stat values to clear hardware registers */
 864         ret = ice_dcf_query_stats(hw, &pstats);
 865         if (ret != 0)
 866                 return ret;
 867
 868         /* set stats offset base on current values */
 869         hw->eth_stats_offset = pstats;
 870
 871         return 0;
 872 }
 873
 874 static void
 875 ice_dcf_free_repr_info(struct ice_dcf_adapter *dcf_adapter)
 876 {
 877         if (dcf_adapter->repr_infos) {
 878                 rte_free(dcf_adapter->repr_infos);
 879                 dcf_adapter->repr_infos = NULL;
 880         }
 881 }
 882
 883 static int
 884 ice_dcf_init_repr_info(struct ice_dcf_adapter *dcf_adapter)
 885 {
 886         dcf_adapter->repr_infos =
 887                         rte_calloc("ice_dcf_rep_info",
 888                                    dcf_adapter->real_hw.num_vfs,
 889                                    sizeof(dcf_adapter->repr_infos[0]), 0);
 890         if (!dcf_adapter->repr_infos) {
 891                 PMD_DRV_LOG(ERR, "Failed to alloc memory for VF representors\n");
 892                 return -ENOMEM;
 893         }
 894
 895         return 0;
 896 }
 897
 898 static int
 899 ice_dcf_dev_close(struct rte_eth_dev *dev)
 900 {
 901         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 902
 903         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 904                 return 0;
 905
 906         (void)ice_dcf_dev_stop(dev);
 907
 908         ice_dcf_free_repr_info(adapter);
 909         ice_dcf_uninit_parent_adapter(dev);
 910         ice_dcf_uninit_hw(dev, &adapter->real_hw);
 911
 912         return 0;
 913 }
 914
 915 int
 916 ice_dcf_link_update(struct rte_eth_dev *dev,
 917                     __rte_unused int wait_to_complete)
 918 {
 919         struct ice_dcf_adapter *ad = dev->data->dev_private;
 920         struct ice_dcf_hw *hw = &ad->real_hw;
 921         struct rte_eth_link new_link;
 922
 923         memset(&new_link, 0, sizeof(new_link));
 924
 925         /* Only read status info stored in VF, and the info is updated
 926          * when receive LINK_CHANGE event from PF by virtchnl.
 927          */
 928         switch (hw->link_speed) {
 929         case 10:
 930                 new_link.link_speed = ETH_SPEED_NUM_10M;
 931                 break;
 932         case 100:
 933                 new_link.link_speed = ETH_SPEED_NUM_100M;
 934                 break;
 935         case 1000:
 936                 new_link.link_speed = ETH_SPEED_NUM_1G;
 937                 break;
 938         case 10000:
 939                 new_link.link_speed = ETH_SPEED_NUM_10G;
 940                 break;
 941         case 20000:
 942                 new_link.link_speed = ETH_SPEED_NUM_20G;
 943                 break;
 944         case 25000:
 945                 new_link.link_speed = ETH_SPEED_NUM_25G;
 946                 break;
 947         case 40000:
 948                 new_link.link_speed = ETH_SPEED_NUM_40G;
 949                 break;
 950         case 50000:
 951                 new_link.link_speed = ETH_SPEED_NUM_50G;
 952                 break;
 953         case 100000:
 954                 new_link.link_speed = ETH_SPEED_NUM_100G;
 955                 break;
 956         default:
 957                 new_link.link_speed = ETH_SPEED_NUM_NONE;
 958                 break;
 959         }
 960
 961         new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
 962         new_link.link_status = hw->link_up ? ETH_LINK_UP :
 963                                              ETH_LINK_DOWN;
 964         new_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
 965                                 ETH_LINK_SPEED_FIXED);
 966
 967         return rte_eth_linkstatus_set(dev, &new_link);
 968 }
 969
 970 /* Add UDP tunneling port */
 971 static int
 972 ice_dcf_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
 973                                 struct rte_eth_udp_tunnel *udp_tunnel)
 974 {
 975         struct ice_dcf_adapter *adapter = dev->data->dev_private;
 976         struct ice_adapter *parent_adapter = &adapter->parent;
 977         struct ice_hw *parent_hw = &parent_adapter->hw;
 978         int ret = 0;
 979
 980         if (!udp_tunnel)
 981                 return -EINVAL;
 982
 983         switch (udp_tunnel->prot_type) {
 984         case RTE_TUNNEL_TYPE_VXLAN:
 985                 ret = ice_create_tunnel(parent_hw, TNL_VXLAN,
 986                                         udp_tunnel->udp_port);
 987                 break;
 988         case RTE_TUNNEL_TYPE_ECPRI:
 989                 ret = ice_create_tunnel(parent_hw, TNL_ECPRI,
 990                                         udp_tunnel->udp_port);
 991                 break;
 992         default:
 993                 PMD_DRV_LOG(ERR, "Invalid tunnel type");
 994                 ret = -EINVAL;
 995                 break;
 996         }
 997
 998         return ret;
 999 }
1000
1001 /* Delete UDP tunneling port */
1002 static int
1003 ice_dcf_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1004                                 struct rte_eth_udp_tunnel *udp_tunnel)
1005 {
1006         struct ice_dcf_adapter *adapter = dev->data->dev_private;
1007         struct ice_adapter *parent_adapter = &adapter->parent;
1008         struct ice_hw *parent_hw = &parent_adapter->hw;
1009         int ret = 0;
1010
1011         if (!udp_tunnel)
1012                 return -EINVAL;
1013
1014         switch (udp_tunnel->prot_type) {
1015         case RTE_TUNNEL_TYPE_VXLAN:
1016         case RTE_TUNNEL_TYPE_ECPRI:
1017                 ret = ice_destroy_tunnel(parent_hw, udp_tunnel->udp_port, 0);
1018                 break;
1019         default:
1020                 PMD_DRV_LOG(ERR, "Invalid tunnel type");
1021                 ret = -EINVAL;
1022                 break;
1023         }
1024
1025         return ret;
1026 }
1027
1028 static int
1029 ice_dcf_tm_ops_get(struct rte_eth_dev *dev __rte_unused,
1030                 void *arg)
1031 {
1032         if (!arg)
1033                 return -EINVAL;
1034
1035         *(const void **)arg = &ice_dcf_tm_ops;
1036
1037         return 0;
1038 }
1039
1040 static int
1041 ice_dcf_dev_reset(struct rte_eth_dev *dev)
1042 {
1043         int ret;
1044
1045         ret = ice_dcf_dev_uninit(dev);
1046         if (ret)
1047                 return ret;
1048
1049         ret = ice_dcf_dev_init(dev);
1050
1051         return ret;
1052 }
1053
1054 static const struct eth_dev_ops ice_dcf_eth_dev_ops = {
1055         .dev_start               = ice_dcf_dev_start,
1056         .dev_stop                = ice_dcf_dev_stop,
1057         .dev_close               = ice_dcf_dev_close,
1058         .dev_reset               = ice_dcf_dev_reset,
1059         .dev_configure           = ice_dcf_dev_configure,
1060         .dev_infos_get           = ice_dcf_dev_info_get,
1061         .rx_queue_setup          = ice_rx_queue_setup,
1062         .tx_queue_setup          = ice_tx_queue_setup,
1063         .rx_queue_release        = ice_rx_queue_release,
1064         .tx_queue_release        = ice_tx_queue_release,
1065         .rx_queue_start          = ice_dcf_rx_queue_start,
1066         .tx_queue_start          = ice_dcf_tx_queue_start,
1067         .rx_queue_stop           = ice_dcf_rx_queue_stop,
1068         .tx_queue_stop           = ice_dcf_tx_queue_stop,
1069         .link_update             = ice_dcf_link_update,
1070         .stats_get               = ice_dcf_stats_get,
1071         .stats_reset             = ice_dcf_stats_reset,
1072         .promiscuous_enable      = ice_dcf_dev_promiscuous_enable,
1073         .promiscuous_disable     = ice_dcf_dev_promiscuous_disable,
1074         .allmulticast_enable     = ice_dcf_dev_allmulticast_enable,
1075         .allmulticast_disable    = ice_dcf_dev_allmulticast_disable,
1076         .flow_ops_get            = ice_dcf_dev_flow_ops_get,
1077         .udp_tunnel_port_add     = ice_dcf_dev_udp_tunnel_port_add,
1078         .udp_tunnel_port_del     = ice_dcf_dev_udp_tunnel_port_del,
1079         .tm_ops_get              = ice_dcf_tm_ops_get,
1080 };
1081
1082 static int
1083 ice_dcf_dev_init(struct rte_eth_dev *eth_dev)
1084 {
1085         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
1086
1087         adapter->real_hw.resetting = false;
1088         eth_dev->dev_ops = &ice_dcf_eth_dev_ops;
1089         eth_dev->rx_pkt_burst = ice_dcf_recv_pkts;
1090         eth_dev->tx_pkt_burst = ice_dcf_xmit_pkts;
1091
1092         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1093                 return 0;
1094
1095         eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1096
1097         adapter->real_hw.vc_event_msg_cb = ice_dcf_handle_pf_event_msg;
1098         if (ice_dcf_init_hw(eth_dev, &adapter->real_hw) != 0) {
1099                 PMD_INIT_LOG(ERR, "Failed to init DCF hardware");
1100                 return -1;
1101         }
1102
1103         if (ice_dcf_init_parent_adapter(eth_dev) != 0) {
1104                 PMD_INIT_LOG(ERR, "Failed to init DCF parent adapter");
1105                 ice_dcf_uninit_hw(eth_dev, &adapter->real_hw);
1106                 return -1;
1107         }
1108
1109         return 0;
1110 }
1111
1112 static int
1113 ice_dcf_dev_uninit(struct rte_eth_dev *eth_dev)
1114 {
1115         ice_dcf_dev_close(eth_dev);
1116
1117         return 0;
1118 }
1119
1120 static int
1121 ice_dcf_cap_check_handler(__rte_unused const char *key,
1122                           const char *value, __rte_unused void *opaque)
1123 {
1124         if (strcmp(value, "dcf"))
1125                 return -1;
1126
1127         return 0;
1128 }
1129
1130 static int
1131 ice_dcf_cap_selected(struct rte_devargs *devargs)
1132 {
1133         struct rte_kvargs *kvlist;
1134         const char *key = "cap";
1135         int ret = 0;
1136
1137         if (devargs == NULL)
1138                 return 0;
1139
1140         kvlist = rte_kvargs_parse(devargs->args, NULL);
1141         if (kvlist == NULL)
1142                 return 0;
1143
1144         if (!rte_kvargs_count(kvlist, key))
1145                 goto exit;
1146
1147         /* dcf capability selected when there's a key-value pair: cap=dcf */
1148         if (rte_kvargs_process(kvlist, key,
1149                                ice_dcf_cap_check_handler, NULL) < 0)
1150                 goto exit;
1151
1152         ret = 1;
1153
1154 exit:
1155         rte_kvargs_free(kvlist);
1156         return ret;
1157 }
1158
1159 static int
1160 eth_ice_dcf_pci_probe(__rte_unused struct rte_pci_driver *pci_drv,
1161                       struct rte_pci_device *pci_dev)
1162 {
1163         struct rte_eth_devargs eth_da = { .nb_representor_ports = 0 };
1164         struct ice_dcf_vf_repr_param repr_param;
1165         char repr_name[RTE_ETH_NAME_MAX_LEN];
1166         struct ice_dcf_adapter *dcf_adapter;
1167         struct rte_eth_dev *dcf_ethdev;
1168         uint16_t dcf_vsi_id;
1169         int i, ret;
1170
1171         if (!ice_dcf_cap_selected(pci_dev->device.devargs))
1172                 return 1;
1173
1174         ret = rte_eth_devargs_parse(pci_dev->device.devargs->args, &eth_da);
1175         if (ret)
1176                 return ret;
1177
1178         ret = rte_eth_dev_pci_generic_probe(pci_dev,
1179                                             sizeof(struct ice_dcf_adapter),
1180                                             ice_dcf_dev_init);
1181         if (ret || !eth_da.nb_representor_ports)
1182                 return ret;
1183         if (eth_da.type != RTE_ETH_REPRESENTOR_VF)
1184                 return -ENOTSUP;
1185
1186         dcf_ethdev = rte_eth_dev_allocated(pci_dev->device.name);
1187         if (dcf_ethdev == NULL)
1188                 return -ENODEV;
1189
1190         dcf_adapter = dcf_ethdev->data->dev_private;
1191         ret = ice_dcf_init_repr_info(dcf_adapter);
1192         if (ret)
1193                 return ret;
1194
1195         if (eth_da.nb_representor_ports > dcf_adapter->real_hw.num_vfs ||
1196             eth_da.nb_representor_ports >= RTE_MAX_ETHPORTS) {
1197                 PMD_DRV_LOG(ERR, "the number of port representors is too large: %u",
1198                             eth_da.nb_representor_ports);
1199                 ice_dcf_free_repr_info(dcf_adapter);
1200                 return -EINVAL;
1201         }
1202
1203         dcf_vsi_id = dcf_adapter->real_hw.vsi_id | VIRTCHNL_DCF_VF_VSI_VALID;
1204
1205         repr_param.dcf_eth_dev = dcf_ethdev;
1206         repr_param.switch_domain_id = 0;
1207
1208         for (i = 0; i < eth_da.nb_representor_ports; i++) {
1209                 uint16_t vf_id = eth_da.representor_ports[i];
1210                 struct rte_eth_dev *vf_rep_eth_dev;
1211
1212                 if (vf_id >= dcf_adapter->real_hw.num_vfs) {
1213                         PMD_DRV_LOG(ERR, "VF ID %u is out of range (0 ~ %u)",
1214                                     vf_id, dcf_adapter->real_hw.num_vfs - 1);
1215                         ret = -EINVAL;
1216                         break;
1217                 }
1218
1219                 if (dcf_adapter->real_hw.vf_vsi_map[vf_id] == dcf_vsi_id) {
1220                         PMD_DRV_LOG(ERR, "VF ID %u is DCF's ID.\n", vf_id);
1221                         ret = -EINVAL;
1222                         break;
1223                 }
1224
1225                 repr_param.vf_id = vf_id;
1226                 snprintf(repr_name, sizeof(repr_name), "net_%s_representor_%u",
1227                          pci_dev->device.name, vf_id);
1228                 ret = rte_eth_dev_create(&pci_dev->device, repr_name,
1229                                          sizeof(struct ice_dcf_vf_repr),
1230                                          NULL, NULL, ice_dcf_vf_repr_init,
1231                                          &repr_param);
1232                 if (ret) {
1233                         PMD_DRV_LOG(ERR, "failed to create DCF VF representor %s",
1234                                     repr_name);
1235                         break;
1236                 }
1237
1238                 vf_rep_eth_dev = rte_eth_dev_allocated(repr_name);
1239                 if (!vf_rep_eth_dev) {
1240                         PMD_DRV_LOG(ERR,
1241                                     "Failed to find the ethdev for DCF VF representor: %s",
1242                                     repr_name);
1243                         ret = -ENODEV;
1244                         break;
1245                 }
1246
1247                 dcf_adapter->repr_infos[vf_id].vf_rep_eth_dev = vf_rep_eth_dev;
1248                 dcf_adapter->num_reprs++;
1249         }
1250
1251         return ret;
1252 }
1253
1254 static int
1255 eth_ice_dcf_pci_remove(struct rte_pci_device *pci_dev)
1256 {
1257         struct rte_eth_dev *eth_dev;
1258
1259         eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
1260         if (!eth_dev)
1261                 return 0;
1262
1263         if (eth_dev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR)
1264                 return rte_eth_dev_pci_generic_remove(pci_dev,
1265                                                       ice_dcf_vf_repr_uninit);
1266         else
1267                 return rte_eth_dev_pci_generic_remove(pci_dev,
1268                                                       ice_dcf_dev_uninit);
1269 }
1270
1271 static const struct rte_pci_id pci_id_ice_dcf_map[] = {
1272         { RTE_PCI_DEVICE(IAVF_INTEL_VENDOR_ID, IAVF_DEV_ID_ADAPTIVE_VF) },
1273         { .vendor_id = 0, /* sentinel */ },
1274 };
1275
1276 static struct rte_pci_driver rte_ice_dcf_pmd = {
1277         .id_table = pci_id_ice_dcf_map,
1278         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
1279         .probe = eth_ice_dcf_pci_probe,
1280         .remove = eth_ice_dcf_pci_remove,
1281 };
1282
1283 RTE_PMD_REGISTER_PCI(net_ice_dcf, rte_ice_dcf_pmd);
1284 RTE_PMD_REGISTER_PCI_TABLE(net_ice_dcf, pci_id_ice_dcf_map);
1285 RTE_PMD_REGISTER_KMOD_DEP(net_ice_dcf, "* igb_uio | vfio-pci");
1286 RTE_PMD_REGISTER_PARAM_STRING(net_ice_dcf, "cap=dcf");