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