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