1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) 2014-2021 Netronome Systems, Inc. 3 * All rights reserved. 4 * 5 * Small portions derived from code Copyright(c) 2010-2015 Intel Corporation. 6 */ 7 8 /* 9 * vim:shiftwidth=8:noexpandtab 10 * 11 * @file dpdk/pmd/nfp_ethdev.c 12 * 13 * Netronome vNIC DPDK Poll-Mode Driver: Main entry point 14 */ 15 16 #include <rte_common.h> 17 #include <ethdev_driver.h> 18 #include <ethdev_pci.h> 19 #include <rte_dev.h> 20 #include <rte_ether.h> 21 #include <rte_malloc.h> 22 #include <rte_memzone.h> 23 #include <rte_mempool.h> 24 #include <rte_service_component.h> 25 #include <rte_alarm.h> 26 #include "eal_firmware.h" 27 28 #include "nfpcore/nfp_cpp.h" 29 #include "nfpcore/nfp_nffw.h" 30 #include "nfpcore/nfp_hwinfo.h" 31 #include "nfpcore/nfp_mip.h" 32 #include "nfpcore/nfp_rtsym.h" 33 #include "nfpcore/nfp_nsp.h" 34 35 #include "nfp_common.h" 36 #include "nfp_rxtx.h" 37 #include "nfp_logs.h" 38 #include "nfp_ctrl.h" 39 #include "nfp_cpp_bridge.h" 40 41 static int 42 nfp_net_pf_read_mac(struct nfp_pf_dev *pf_dev, int port) 43 { 44 struct nfp_eth_table *nfp_eth_table; 45 struct nfp_net_hw *hw = NULL; 46 47 /* Grab a pointer to the correct physical port */ 48 hw = pf_dev->ports[port]; 49 50 nfp_eth_table = nfp_eth_read_ports(pf_dev->cpp); 51 52 nfp_eth_copy_mac((uint8_t *)&hw->mac_addr, 53 (uint8_t *)&nfp_eth_table->ports[port].mac_addr); 54 55 free(nfp_eth_table); 56 return 0; 57 } 58 59 static int 60 nfp_net_start(struct rte_eth_dev *dev) 61 { 62 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); 63 struct rte_intr_handle *intr_handle = pci_dev->intr_handle; 64 uint32_t new_ctrl, update = 0; 65 struct nfp_net_hw *hw; 66 struct nfp_pf_dev *pf_dev; 67 struct rte_eth_conf *dev_conf; 68 struct rte_eth_rxmode *rxmode; 69 uint32_t intr_vector; 70 int ret; 71 72 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); 73 pf_dev = NFP_NET_DEV_PRIVATE_TO_PF(dev->data->dev_private); 74 75 PMD_INIT_LOG(DEBUG, "Start"); 76 77 /* Disabling queues just in case... */ 78 nfp_net_disable_queues(dev); 79 80 /* Enabling the required queues in the device */ 81 nfp_net_enable_queues(dev); 82 83 /* check and configure queue intr-vector mapping */ 84 if (dev->data->dev_conf.intr_conf.rxq != 0) { 85 if (pf_dev->multiport) { 86 PMD_INIT_LOG(ERR, "PMD rx interrupt is not supported " 87 "with NFP multiport PF"); 88 return -EINVAL; 89 } 90 if (rte_intr_type_get(intr_handle) == 91 RTE_INTR_HANDLE_UIO) { 92 /* 93 * Better not to share LSC with RX interrupts. 94 * Unregistering LSC interrupt handler 95 */ 96 rte_intr_callback_unregister(pci_dev->intr_handle, 97 nfp_net_dev_interrupt_handler, (void *)dev); 98 99 if (dev->data->nb_rx_queues > 1) { 100 PMD_INIT_LOG(ERR, "PMD rx interrupt only " 101 "supports 1 queue with UIO"); 102 return -EIO; 103 } 104 } 105 intr_vector = dev->data->nb_rx_queues; 106 if (rte_intr_efd_enable(intr_handle, intr_vector)) 107 return -1; 108 109 nfp_configure_rx_interrupt(dev, intr_handle); 110 update = NFP_NET_CFG_UPDATE_MSIX; 111 } 112 113 rte_intr_enable(intr_handle); 114 115 new_ctrl = nfp_check_offloads(dev); 116 117 /* Writing configuration parameters in the device */ 118 nfp_net_params_setup(hw); 119 120 dev_conf = &dev->data->dev_conf; 121 rxmode = &dev_conf->rxmode; 122 123 if (rxmode->mq_mode & RTE_ETH_MQ_RX_RSS) { 124 nfp_net_rss_config_default(dev); 125 update |= NFP_NET_CFG_UPDATE_RSS; 126 if (hw->cap & NFP_NET_CFG_CTRL_RSS2) 127 new_ctrl |= NFP_NET_CFG_CTRL_RSS2; 128 else 129 new_ctrl |= NFP_NET_CFG_CTRL_RSS; 130 } 131 132 /* Enable device */ 133 new_ctrl |= NFP_NET_CFG_CTRL_ENABLE; 134 135 update |= NFP_NET_CFG_UPDATE_GEN | NFP_NET_CFG_UPDATE_RING; 136 137 if (hw->cap & NFP_NET_CFG_CTRL_RINGCFG) 138 new_ctrl |= NFP_NET_CFG_CTRL_RINGCFG; 139 140 nn_cfg_writel(hw, NFP_NET_CFG_CTRL, new_ctrl); 141 if (nfp_net_reconfig(hw, new_ctrl, update) < 0) 142 return -EIO; 143 144 /* 145 * Allocating rte mbufs for configured rx queues. 146 * This requires queues being enabled before 147 */ 148 if (nfp_net_rx_freelist_setup(dev) < 0) { 149 ret = -ENOMEM; 150 goto error; 151 } 152 153 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 154 /* Configure the physical port up */ 155 nfp_eth_set_configured(hw->cpp, hw->nfp_idx, 1); 156 else 157 nfp_eth_set_configured(dev->process_private, 158 hw->nfp_idx, 1); 159 160 hw->ctrl = new_ctrl; 161 162 return 0; 163 164 error: 165 /* 166 * An error returned by this function should mean the app 167 * exiting and then the system releasing all the memory 168 * allocated even memory coming from hugepages. 169 * 170 * The device could be enabled at this point with some queues 171 * ready for getting packets. This is true if the call to 172 * nfp_net_rx_freelist_setup() succeeds for some queues but 173 * fails for subsequent queues. 174 * 175 * This should make the app exiting but better if we tell the 176 * device first. 177 */ 178 nfp_net_disable_queues(dev); 179 180 return ret; 181 } 182 183 /* Stop device: disable rx and tx functions to allow for reconfiguring. */ 184 static int 185 nfp_net_stop(struct rte_eth_dev *dev) 186 { 187 struct nfp_net_hw *hw; 188 189 PMD_INIT_LOG(DEBUG, "Stop"); 190 191 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); 192 193 nfp_net_disable_queues(dev); 194 195 /* Clear queues */ 196 nfp_net_stop_tx_queue(dev); 197 198 nfp_net_stop_rx_queue(dev); 199 200 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 201 /* Configure the physical port down */ 202 nfp_eth_set_configured(hw->cpp, hw->nfp_idx, 0); 203 else 204 nfp_eth_set_configured(dev->process_private, 205 hw->nfp_idx, 0); 206 207 return 0; 208 } 209 210 /* Set the link up. */ 211 static int 212 nfp_net_set_link_up(struct rte_eth_dev *dev) 213 { 214 struct nfp_net_hw *hw; 215 216 PMD_DRV_LOG(DEBUG, "Set link up"); 217 218 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); 219 220 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 221 /* Configure the physical port down */ 222 return nfp_eth_set_configured(hw->cpp, hw->nfp_idx, 1); 223 else 224 return nfp_eth_set_configured(dev->process_private, 225 hw->nfp_idx, 1); 226 } 227 228 /* Set the link down. */ 229 static int 230 nfp_net_set_link_down(struct rte_eth_dev *dev) 231 { 232 struct nfp_net_hw *hw; 233 234 PMD_DRV_LOG(DEBUG, "Set link down"); 235 236 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); 237 238 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 239 /* Configure the physical port down */ 240 return nfp_eth_set_configured(hw->cpp, hw->nfp_idx, 0); 241 else 242 return nfp_eth_set_configured(dev->process_private, 243 hw->nfp_idx, 0); 244 } 245 246 /* Reset and stop device. The device can not be restarted. */ 247 static int 248 nfp_net_close(struct rte_eth_dev *dev) 249 { 250 struct nfp_net_hw *hw; 251 struct rte_pci_device *pci_dev; 252 struct nfp_pf_dev *pf_dev; 253 int i; 254 255 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 256 return 0; 257 258 PMD_INIT_LOG(DEBUG, "Close"); 259 260 pf_dev = NFP_NET_DEV_PRIVATE_TO_PF(dev->data->dev_private); 261 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); 262 pci_dev = RTE_ETH_DEV_TO_PCI(dev); 263 264 /* 265 * We assume that the DPDK application is stopping all the 266 * threads/queues before calling the device close function. 267 */ 268 269 nfp_net_disable_queues(dev); 270 271 /* Clear queues */ 272 nfp_net_close_tx_queue(dev); 273 274 nfp_net_close_rx_queue(dev); 275 276 /* Cancel possible impending LSC work here before releasing the port*/ 277 rte_eal_alarm_cancel(nfp_net_dev_interrupt_delayed_handler, 278 (void *)dev); 279 280 /* Only free PF resources after all physical ports have been closed */ 281 /* Mark this port as unused and free device priv resources*/ 282 nn_cfg_writeb(hw, NFP_NET_CFG_LSC, 0xff); 283 pf_dev->ports[hw->idx] = NULL; 284 rte_eth_dev_release_port(dev); 285 286 for (i = 0; i < pf_dev->total_phyports; i++) { 287 /* Check to see if ports are still in use */ 288 if (pf_dev->ports[i]) 289 return 0; 290 } 291 292 /* Now it is safe to free all PF resources */ 293 PMD_INIT_LOG(INFO, "Freeing PF resources"); 294 nfp_cpp_area_free(pf_dev->ctrl_area); 295 nfp_cpp_area_free(pf_dev->hwqueues_area); 296 free(pf_dev->hwinfo); 297 free(pf_dev->sym_tbl); 298 nfp_cpp_free(pf_dev->cpp); 299 rte_free(pf_dev); 300 301 rte_intr_disable(pci_dev->intr_handle); 302 303 /* unregister callback func from eal lib */ 304 rte_intr_callback_unregister(pci_dev->intr_handle, 305 nfp_net_dev_interrupt_handler, (void *)dev); 306 307 /* 308 * The ixgbe PMD disables the pcie master on the 309 * device. The i40e does not... 310 */ 311 312 return 0; 313 } 314 315 /* Initialise and register driver with DPDK Application */ 316 static const struct eth_dev_ops nfp_net_nfd3_eth_dev_ops = { 317 .dev_configure = nfp_net_configure, 318 .dev_start = nfp_net_start, 319 .dev_stop = nfp_net_stop, 320 .dev_set_link_up = nfp_net_set_link_up, 321 .dev_set_link_down = nfp_net_set_link_down, 322 .dev_close = nfp_net_close, 323 .promiscuous_enable = nfp_net_promisc_enable, 324 .promiscuous_disable = nfp_net_promisc_disable, 325 .link_update = nfp_net_link_update, 326 .stats_get = nfp_net_stats_get, 327 .stats_reset = nfp_net_stats_reset, 328 .dev_infos_get = nfp_net_infos_get, 329 .dev_supported_ptypes_get = nfp_net_supported_ptypes_get, 330 .mtu_set = nfp_net_dev_mtu_set, 331 .mac_addr_set = nfp_net_set_mac_addr, 332 .vlan_offload_set = nfp_net_vlan_offload_set, 333 .reta_update = nfp_net_reta_update, 334 .reta_query = nfp_net_reta_query, 335 .rss_hash_update = nfp_net_rss_hash_update, 336 .rss_hash_conf_get = nfp_net_rss_hash_conf_get, 337 .rx_queue_setup = nfp_net_rx_queue_setup, 338 .rx_queue_release = nfp_net_rx_queue_release, 339 .tx_queue_setup = nfp_net_nfd3_tx_queue_setup, 340 .tx_queue_release = nfp_net_tx_queue_release, 341 .rx_queue_intr_enable = nfp_rx_queue_intr_enable, 342 .rx_queue_intr_disable = nfp_rx_queue_intr_disable, 343 }; 344 345 static const struct eth_dev_ops nfp_net_nfdk_eth_dev_ops = { 346 .dev_configure = nfp_net_configure, 347 .dev_start = nfp_net_start, 348 .dev_stop = nfp_net_stop, 349 .dev_set_link_up = nfp_net_set_link_up, 350 .dev_set_link_down = nfp_net_set_link_down, 351 .dev_close = nfp_net_close, 352 .promiscuous_enable = nfp_net_promisc_enable, 353 .promiscuous_disable = nfp_net_promisc_disable, 354 .link_update = nfp_net_link_update, 355 .stats_get = nfp_net_stats_get, 356 .stats_reset = nfp_net_stats_reset, 357 .dev_infos_get = nfp_net_infos_get, 358 .dev_supported_ptypes_get = nfp_net_supported_ptypes_get, 359 .mtu_set = nfp_net_dev_mtu_set, 360 .mac_addr_set = nfp_net_set_mac_addr, 361 .vlan_offload_set = nfp_net_vlan_offload_set, 362 .reta_update = nfp_net_reta_update, 363 .reta_query = nfp_net_reta_query, 364 .rss_hash_update = nfp_net_rss_hash_update, 365 .rss_hash_conf_get = nfp_net_rss_hash_conf_get, 366 .rx_queue_setup = nfp_net_rx_queue_setup, 367 .rx_queue_release = nfp_net_rx_queue_release, 368 .tx_queue_setup = nfp_net_nfdk_tx_queue_setup, 369 .tx_queue_release = nfp_net_tx_queue_release, 370 .rx_queue_intr_enable = nfp_rx_queue_intr_enable, 371 .rx_queue_intr_disable = nfp_rx_queue_intr_disable, 372 }; 373 374 static inline int 375 nfp_net_ethdev_ops_mount(struct nfp_net_hw *hw, struct rte_eth_dev *eth_dev) 376 { 377 switch (NFD_CFG_CLASS_VER_of(hw->ver)) { 378 case NFP_NET_CFG_VERSION_DP_NFD3: 379 eth_dev->dev_ops = &nfp_net_nfd3_eth_dev_ops; 380 break; 381 case NFP_NET_CFG_VERSION_DP_NFDK: 382 if (NFD_CFG_MAJOR_VERSION_of(hw->ver) < 5) { 383 PMD_DRV_LOG(ERR, "NFDK must use ABI 5 or newer, found: %d", 384 NFD_CFG_MAJOR_VERSION_of(hw->ver)); 385 return -EINVAL; 386 } 387 eth_dev->dev_ops = &nfp_net_nfdk_eth_dev_ops; 388 break; 389 default: 390 PMD_DRV_LOG(ERR, "The version of firmware is not correct."); 391 return -EINVAL; 392 } 393 394 eth_dev->rx_queue_count = nfp_net_rx_queue_count; 395 eth_dev->rx_pkt_burst = &nfp_net_recv_pkts; 396 eth_dev->tx_pkt_burst = &nfp_net_nfd3_xmit_pkts; 397 398 return 0; 399 } 400 401 static int 402 nfp_net_init(struct rte_eth_dev *eth_dev) 403 { 404 struct rte_pci_device *pci_dev; 405 struct nfp_pf_dev *pf_dev; 406 struct nfp_net_hw *hw; 407 struct rte_ether_addr *tmp_ether_addr; 408 uint64_t rx_bar_off = 0; 409 uint64_t tx_bar_off = 0; 410 uint32_t start_q; 411 int stride = 4; 412 int port = 0; 413 int err; 414 415 PMD_INIT_FUNC_TRACE(); 416 417 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev); 418 419 /* Use backpointer here to the PF of this eth_dev */ 420 pf_dev = NFP_NET_DEV_PRIVATE_TO_PF(eth_dev->data->dev_private); 421 422 /* NFP can not handle DMA addresses requiring more than 40 bits */ 423 if (rte_mem_check_dma_mask(40)) { 424 RTE_LOG(ERR, PMD, 425 "device %s can not be used: restricted dma mask to 40 bits!\n", 426 pci_dev->device.name); 427 return -ENODEV; 428 } 429 430 port = ((struct nfp_net_hw *)eth_dev->data->dev_private)->idx; 431 if (port < 0 || port > 7) { 432 PMD_DRV_LOG(ERR, "Port value is wrong"); 433 return -ENODEV; 434 } 435 436 /* 437 * Use PF array of physical ports to get pointer to 438 * this specific port 439 */ 440 hw = pf_dev->ports[port]; 441 442 PMD_INIT_LOG(DEBUG, "Working with physical port number: %d, " 443 "NFP internal port number: %d", port, hw->nfp_idx); 444 445 /* For secondary processes, the primary has done all the work */ 446 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 447 return 0; 448 449 rte_eth_copy_pci_info(eth_dev, pci_dev); 450 451 hw->device_id = pci_dev->id.device_id; 452 hw->vendor_id = pci_dev->id.vendor_id; 453 hw->subsystem_device_id = pci_dev->id.subsystem_device_id; 454 hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id; 455 456 PMD_INIT_LOG(DEBUG, "nfp_net: device (%u:%u) %u:%u:%u:%u", 457 pci_dev->id.vendor_id, pci_dev->id.device_id, 458 pci_dev->addr.domain, pci_dev->addr.bus, 459 pci_dev->addr.devid, pci_dev->addr.function); 460 461 hw->ctrl_bar = (uint8_t *)pci_dev->mem_resource[0].addr; 462 if (hw->ctrl_bar == NULL) { 463 PMD_DRV_LOG(ERR, 464 "hw->ctrl_bar is NULL. BAR0 not configured"); 465 return -ENODEV; 466 } 467 468 if (port == 0) { 469 hw->ctrl_bar = pf_dev->ctrl_bar; 470 } else { 471 if (pf_dev->ctrl_bar == NULL) 472 return -ENODEV; 473 /* Use port offset in pf ctrl_bar for this ports control bar */ 474 hw->ctrl_bar = pf_dev->ctrl_bar + (port * NFP_PF_CSR_SLICE_SIZE); 475 } 476 477 PMD_INIT_LOG(DEBUG, "ctrl bar: %p", hw->ctrl_bar); 478 479 hw->ver = nn_cfg_readl(hw, NFP_NET_CFG_VERSION); 480 481 if (nfp_net_ethdev_ops_mount(hw, eth_dev)) 482 return -EINVAL; 483 484 hw->max_rx_queues = nn_cfg_readl(hw, NFP_NET_CFG_MAX_RXRINGS); 485 hw->max_tx_queues = nn_cfg_readl(hw, NFP_NET_CFG_MAX_TXRINGS); 486 487 /* Work out where in the BAR the queues start. */ 488 switch (pci_dev->id.device_id) { 489 case PCI_DEVICE_ID_NFP3800_PF_NIC: 490 case PCI_DEVICE_ID_NFP4000_PF_NIC: 491 case PCI_DEVICE_ID_NFP6000_PF_NIC: 492 start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_TXQ); 493 tx_bar_off = nfp_pci_queue(pci_dev, start_q); 494 start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_RXQ); 495 rx_bar_off = nfp_pci_queue(pci_dev, start_q); 496 break; 497 default: 498 PMD_DRV_LOG(ERR, "nfp_net: no device ID matching"); 499 err = -ENODEV; 500 goto dev_err_ctrl_map; 501 } 502 503 PMD_INIT_LOG(DEBUG, "tx_bar_off: 0x%" PRIx64 "", tx_bar_off); 504 PMD_INIT_LOG(DEBUG, "rx_bar_off: 0x%" PRIx64 "", rx_bar_off); 505 506 hw->tx_bar = pf_dev->hw_queues + tx_bar_off; 507 hw->rx_bar = pf_dev->hw_queues + rx_bar_off; 508 eth_dev->data->dev_private = hw; 509 510 PMD_INIT_LOG(DEBUG, "ctrl_bar: %p, tx_bar: %p, rx_bar: %p", 511 hw->ctrl_bar, hw->tx_bar, hw->rx_bar); 512 513 nfp_net_cfg_queue_setup(hw); 514 515 /* Get some of the read-only fields from the config BAR */ 516 hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP); 517 hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU); 518 hw->mtu = RTE_ETHER_MTU; 519 hw->flbufsz = RTE_ETHER_MTU; 520 521 /* VLAN insertion is incompatible with LSOv2 */ 522 if (hw->cap & NFP_NET_CFG_CTRL_LSO2) 523 hw->cap &= ~NFP_NET_CFG_CTRL_TXVLAN; 524 525 if (NFD_CFG_MAJOR_VERSION_of(hw->ver) < 2) 526 hw->rx_offset = NFP_NET_RX_OFFSET; 527 else 528 hw->rx_offset = nn_cfg_readl(hw, NFP_NET_CFG_RX_OFFSET_ADDR); 529 530 PMD_INIT_LOG(INFO, "VER: %u.%u, Maximum supported MTU: %d", 531 NFD_CFG_MAJOR_VERSION_of(hw->ver), 532 NFD_CFG_MINOR_VERSION_of(hw->ver), hw->max_mtu); 533 534 PMD_INIT_LOG(INFO, "CAP: %#x, %s%s%s%s%s%s%s%s%s%s%s%s%s%s", hw->cap, 535 hw->cap & NFP_NET_CFG_CTRL_PROMISC ? "PROMISC " : "", 536 hw->cap & NFP_NET_CFG_CTRL_L2BC ? "L2BCFILT " : "", 537 hw->cap & NFP_NET_CFG_CTRL_L2MC ? "L2MCFILT " : "", 538 hw->cap & NFP_NET_CFG_CTRL_RXCSUM ? "RXCSUM " : "", 539 hw->cap & NFP_NET_CFG_CTRL_TXCSUM ? "TXCSUM " : "", 540 hw->cap & NFP_NET_CFG_CTRL_RXVLAN ? "RXVLAN " : "", 541 hw->cap & NFP_NET_CFG_CTRL_TXVLAN ? "TXVLAN " : "", 542 hw->cap & NFP_NET_CFG_CTRL_SCATTER ? "SCATTER " : "", 543 hw->cap & NFP_NET_CFG_CTRL_GATHER ? "GATHER " : "", 544 hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR ? "LIVE_ADDR " : "", 545 hw->cap & NFP_NET_CFG_CTRL_LSO ? "TSO " : "", 546 hw->cap & NFP_NET_CFG_CTRL_LSO2 ? "TSOv2 " : "", 547 hw->cap & NFP_NET_CFG_CTRL_RSS ? "RSS " : "", 548 hw->cap & NFP_NET_CFG_CTRL_RSS2 ? "RSSv2 " : ""); 549 550 hw->ctrl = 0; 551 552 hw->stride_rx = stride; 553 hw->stride_tx = stride; 554 555 PMD_INIT_LOG(INFO, "max_rx_queues: %u, max_tx_queues: %u", 556 hw->max_rx_queues, hw->max_tx_queues); 557 558 /* Initializing spinlock for reconfigs */ 559 rte_spinlock_init(&hw->reconfig_lock); 560 561 /* Allocating memory for mac addr */ 562 eth_dev->data->mac_addrs = rte_zmalloc("mac_addr", 563 RTE_ETHER_ADDR_LEN, 0); 564 if (eth_dev->data->mac_addrs == NULL) { 565 PMD_INIT_LOG(ERR, "Failed to space for MAC address"); 566 err = -ENOMEM; 567 goto dev_err_queues_map; 568 } 569 570 nfp_net_pf_read_mac(pf_dev, port); 571 nfp_net_write_mac(hw, (uint8_t *)&hw->mac_addr); 572 573 tmp_ether_addr = (struct rte_ether_addr *)&hw->mac_addr; 574 if (!rte_is_valid_assigned_ether_addr(tmp_ether_addr)) { 575 PMD_INIT_LOG(INFO, "Using random mac address for port %d", port); 576 /* Using random mac addresses for VFs */ 577 rte_eth_random_addr(&hw->mac_addr[0]); 578 nfp_net_write_mac(hw, (uint8_t *)&hw->mac_addr); 579 } 580 581 /* Copying mac address to DPDK eth_dev struct */ 582 rte_ether_addr_copy((struct rte_ether_addr *)hw->mac_addr, 583 ð_dev->data->mac_addrs[0]); 584 585 if (!(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR)) 586 eth_dev->data->dev_flags |= RTE_ETH_DEV_NOLIVE_MAC_ADDR; 587 588 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS; 589 590 PMD_INIT_LOG(INFO, "port %d VendorID=0x%x DeviceID=0x%x " 591 "mac=" RTE_ETHER_ADDR_PRT_FMT, 592 eth_dev->data->port_id, pci_dev->id.vendor_id, 593 pci_dev->id.device_id, 594 hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2], 595 hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]); 596 597 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 598 /* Registering LSC interrupt handler */ 599 rte_intr_callback_register(pci_dev->intr_handle, 600 nfp_net_dev_interrupt_handler, (void *)eth_dev); 601 /* Telling the firmware about the LSC interrupt entry */ 602 nn_cfg_writeb(hw, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX); 603 /* Recording current stats counters values */ 604 nfp_net_stats_reset(eth_dev); 605 } 606 607 return 0; 608 609 dev_err_queues_map: 610 nfp_cpp_area_free(hw->hwqueues_area); 611 dev_err_ctrl_map: 612 nfp_cpp_area_free(hw->ctrl_area); 613 614 return err; 615 } 616 617 #define DEFAULT_FW_PATH "/lib/firmware/netronome" 618 619 static int 620 nfp_fw_upload(struct rte_pci_device *dev, struct nfp_nsp *nsp, char *card) 621 { 622 struct nfp_cpp *cpp = nsp->cpp; 623 void *fw_buf; 624 char fw_name[125]; 625 char serial[40]; 626 size_t fsize; 627 628 /* Looking for firmware file in order of priority */ 629 630 /* First try to find a firmware image specific for this device */ 631 snprintf(serial, sizeof(serial), 632 "serial-%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x", 633 cpp->serial[0], cpp->serial[1], cpp->serial[2], cpp->serial[3], 634 cpp->serial[4], cpp->serial[5], cpp->interface >> 8, 635 cpp->interface & 0xff); 636 637 snprintf(fw_name, sizeof(fw_name), "%s/%s.nffw", DEFAULT_FW_PATH, 638 serial); 639 640 PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name); 641 if (rte_firmware_read(fw_name, &fw_buf, &fsize) == 0) 642 goto load_fw; 643 /* Then try the PCI name */ 644 snprintf(fw_name, sizeof(fw_name), "%s/pci-%s.nffw", DEFAULT_FW_PATH, 645 dev->device.name); 646 647 PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name); 648 if (rte_firmware_read(fw_name, &fw_buf, &fsize) == 0) 649 goto load_fw; 650 651 /* Finally try the card type and media */ 652 snprintf(fw_name, sizeof(fw_name), "%s/%s", DEFAULT_FW_PATH, card); 653 PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name); 654 if (rte_firmware_read(fw_name, &fw_buf, &fsize) < 0) { 655 PMD_DRV_LOG(INFO, "Firmware file %s not found.", fw_name); 656 return -ENOENT; 657 } 658 659 load_fw: 660 PMD_DRV_LOG(INFO, "Firmware file found at %s with size: %zu", 661 fw_name, fsize); 662 PMD_DRV_LOG(INFO, "Uploading the firmware ..."); 663 nfp_nsp_load_fw(nsp, fw_buf, fsize); 664 PMD_DRV_LOG(INFO, "Done"); 665 666 free(fw_buf); 667 668 return 0; 669 } 670 671 static int 672 nfp_fw_setup(struct rte_pci_device *dev, 673 struct nfp_cpp *cpp, 674 struct nfp_eth_table *nfp_eth_table, 675 struct nfp_hwinfo *hwinfo) 676 { 677 struct nfp_nsp *nsp; 678 const char *nfp_fw_model; 679 char card_desc[100]; 680 int err = 0; 681 682 nfp_fw_model = nfp_hwinfo_lookup(hwinfo, "assembly.partno"); 683 684 if (nfp_fw_model) { 685 PMD_DRV_LOG(INFO, "firmware model found: %s", nfp_fw_model); 686 } else { 687 PMD_DRV_LOG(ERR, "firmware model NOT found"); 688 return -EIO; 689 } 690 691 if (nfp_eth_table->count == 0 || nfp_eth_table->count > 8) { 692 PMD_DRV_LOG(ERR, "NFP ethernet table reports wrong ports: %u", 693 nfp_eth_table->count); 694 return -EIO; 695 } 696 697 PMD_DRV_LOG(INFO, "NFP ethernet port table reports %u ports", 698 nfp_eth_table->count); 699 700 PMD_DRV_LOG(INFO, "Port speed: %u", nfp_eth_table->ports[0].speed); 701 702 snprintf(card_desc, sizeof(card_desc), "nic_%s_%dx%d.nffw", 703 nfp_fw_model, nfp_eth_table->count, 704 nfp_eth_table->ports[0].speed / 1000); 705 706 nsp = nfp_nsp_open(cpp); 707 if (nsp == NULL) { 708 PMD_DRV_LOG(ERR, "NFP error when obtaining NSP handle"); 709 return -EIO; 710 } 711 712 nfp_nsp_device_soft_reset(nsp); 713 err = nfp_fw_upload(dev, nsp, card_desc); 714 715 nfp_nsp_close(nsp); 716 return err; 717 } 718 719 static int 720 nfp_init_phyports(struct nfp_pf_dev *pf_dev) 721 { 722 int i; 723 int ret = 0; 724 struct nfp_net_hw *hw; 725 struct rte_eth_dev *eth_dev; 726 struct nfp_eth_table *nfp_eth_table; 727 728 nfp_eth_table = nfp_eth_read_ports(pf_dev->cpp); 729 if (nfp_eth_table == NULL) { 730 PMD_INIT_LOG(ERR, "Error reading NFP ethernet table"); 731 return -EIO; 732 } 733 734 /* Loop through all physical ports on PF */ 735 for (i = 0; i < pf_dev->total_phyports; i++) { 736 const unsigned int numa_node = rte_socket_id(); 737 char port_name[RTE_ETH_NAME_MAX_LEN]; 738 739 snprintf(port_name, sizeof(port_name), "%s_port%d", 740 pf_dev->pci_dev->device.name, i); 741 742 /* Allocate a eth_dev for this phyport */ 743 eth_dev = rte_eth_dev_allocate(port_name); 744 if (eth_dev == NULL) { 745 ret = -ENODEV; 746 goto port_cleanup; 747 } 748 749 /* Allocate memory for this phyport */ 750 eth_dev->data->dev_private = 751 rte_zmalloc_socket(port_name, sizeof(struct nfp_net_hw), 752 RTE_CACHE_LINE_SIZE, numa_node); 753 if (eth_dev->data->dev_private == NULL) { 754 ret = -ENOMEM; 755 rte_eth_dev_release_port(eth_dev); 756 goto port_cleanup; 757 } 758 759 hw = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); 760 761 /* Add this device to the PF's array of physical ports */ 762 pf_dev->ports[i] = hw; 763 764 hw->pf_dev = pf_dev; 765 hw->cpp = pf_dev->cpp; 766 hw->eth_dev = eth_dev; 767 hw->idx = i; 768 hw->nfp_idx = nfp_eth_table->ports[i].index; 769 hw->is_phyport = true; 770 771 eth_dev->device = &pf_dev->pci_dev->device; 772 773 /* ctrl/tx/rx BAR mappings and remaining init happens in 774 * nfp_net_init 775 */ 776 ret = nfp_net_init(eth_dev); 777 if (ret) { 778 ret = -ENODEV; 779 goto port_cleanup; 780 } 781 782 rte_eth_dev_probing_finish(eth_dev); 783 784 } /* End loop, all ports on this PF */ 785 ret = 0; 786 goto eth_table_cleanup; 787 788 port_cleanup: 789 for (i = 0; i < pf_dev->total_phyports; i++) { 790 if (pf_dev->ports[i] && pf_dev->ports[i]->eth_dev) { 791 struct rte_eth_dev *tmp_dev; 792 tmp_dev = pf_dev->ports[i]->eth_dev; 793 rte_eth_dev_release_port(tmp_dev); 794 pf_dev->ports[i] = NULL; 795 } 796 } 797 eth_table_cleanup: 798 free(nfp_eth_table); 799 800 return ret; 801 } 802 803 static int 804 nfp_pf_init(struct rte_pci_device *pci_dev) 805 { 806 int err; 807 int ret = 0; 808 uint64_t addr; 809 int total_ports; 810 struct nfp_cpp *cpp; 811 struct nfp_pf_dev *pf_dev; 812 struct nfp_hwinfo *hwinfo; 813 char name[RTE_ETH_NAME_MAX_LEN]; 814 struct nfp_rtsym_table *sym_tbl; 815 struct nfp_eth_table *nfp_eth_table; 816 817 if (pci_dev == NULL) 818 return -ENODEV; 819 820 /* 821 * When device bound to UIO, the device could be used, by mistake, 822 * by two DPDK apps, and the UIO driver does not avoid it. This 823 * could lead to a serious problem when configuring the NFP CPP 824 * interface. Here we avoid this telling to the CPP init code to 825 * use a lock file if UIO is being used. 826 */ 827 if (pci_dev->kdrv == RTE_PCI_KDRV_VFIO) 828 cpp = nfp_cpp_from_device_name(pci_dev, 0); 829 else 830 cpp = nfp_cpp_from_device_name(pci_dev, 1); 831 832 if (cpp == NULL) { 833 PMD_INIT_LOG(ERR, "A CPP handle can not be obtained"); 834 ret = -EIO; 835 goto error; 836 } 837 838 hwinfo = nfp_hwinfo_read(cpp); 839 if (hwinfo == NULL) { 840 PMD_INIT_LOG(ERR, "Error reading hwinfo table"); 841 ret = -EIO; 842 goto error; 843 } 844 845 nfp_eth_table = nfp_eth_read_ports(cpp); 846 if (nfp_eth_table == NULL) { 847 PMD_INIT_LOG(ERR, "Error reading NFP ethernet table"); 848 ret = -EIO; 849 goto hwinfo_cleanup; 850 } 851 852 if (nfp_fw_setup(pci_dev, cpp, nfp_eth_table, hwinfo)) { 853 PMD_INIT_LOG(ERR, "Error when uploading firmware"); 854 ret = -EIO; 855 goto eth_table_cleanup; 856 } 857 858 /* Now the symbol table should be there */ 859 sym_tbl = nfp_rtsym_table_read(cpp); 860 if (sym_tbl == NULL) { 861 PMD_INIT_LOG(ERR, "Something is wrong with the firmware" 862 " symbol table"); 863 ret = -EIO; 864 goto eth_table_cleanup; 865 } 866 867 total_ports = nfp_rtsym_read_le(sym_tbl, "nfd_cfg_pf0_num_ports", &err); 868 if (total_ports != (int)nfp_eth_table->count) { 869 PMD_DRV_LOG(ERR, "Inconsistent number of ports"); 870 ret = -EIO; 871 goto sym_tbl_cleanup; 872 } 873 874 PMD_INIT_LOG(INFO, "Total physical ports: %d", total_ports); 875 876 if (total_ports <= 0 || total_ports > 8) { 877 PMD_INIT_LOG(ERR, "nfd_cfg_pf0_num_ports symbol with wrong value"); 878 ret = -ENODEV; 879 goto sym_tbl_cleanup; 880 } 881 /* Allocate memory for the PF "device" */ 882 snprintf(name, sizeof(name), "nfp_pf%d", 0); 883 pf_dev = rte_zmalloc(name, sizeof(*pf_dev), 0); 884 if (pf_dev == NULL) { 885 ret = -ENOMEM; 886 goto sym_tbl_cleanup; 887 } 888 889 /* Populate the newly created PF device */ 890 pf_dev->cpp = cpp; 891 pf_dev->hwinfo = hwinfo; 892 pf_dev->sym_tbl = sym_tbl; 893 pf_dev->total_phyports = total_ports; 894 895 if (total_ports > 1) 896 pf_dev->multiport = true; 897 898 pf_dev->pci_dev = pci_dev; 899 900 /* Map the symbol table */ 901 pf_dev->ctrl_bar = nfp_rtsym_map(pf_dev->sym_tbl, "_pf0_net_bar0", 902 pf_dev->total_phyports * 32768, &pf_dev->ctrl_area); 903 if (pf_dev->ctrl_bar == NULL) { 904 PMD_INIT_LOG(ERR, "nfp_rtsym_map fails for _pf0_net_ctrl_bar"); 905 ret = -EIO; 906 goto pf_cleanup; 907 } 908 909 PMD_INIT_LOG(DEBUG, "ctrl bar: %p", pf_dev->ctrl_bar); 910 911 /* configure access to tx/rx vNIC BARs */ 912 switch (pci_dev->id.device_id) { 913 case PCI_DEVICE_ID_NFP3800_PF_NIC: 914 addr = NFP_PCIE_QUEUE(NFP_PCIE_QCP_NFP3800_OFFSET, 915 0, NFP_PCIE_QUEUE_NFP3800_MASK); 916 break; 917 case PCI_DEVICE_ID_NFP4000_PF_NIC: 918 case PCI_DEVICE_ID_NFP6000_PF_NIC: 919 addr = NFP_PCIE_QUEUE(NFP_PCIE_QCP_NFP6000_OFFSET, 920 0, NFP_PCIE_QUEUE_NFP6000_MASK); 921 break; 922 default: 923 PMD_INIT_LOG(ERR, "nfp_net: no device ID matching"); 924 err = -ENODEV; 925 goto ctrl_area_cleanup; 926 } 927 928 pf_dev->hw_queues = nfp_cpp_map_area(pf_dev->cpp, 0, 0, 929 addr, NFP_QCP_QUEUE_AREA_SZ, 930 &pf_dev->hwqueues_area); 931 if (pf_dev->hw_queues == NULL) { 932 PMD_INIT_LOG(ERR, "nfp_rtsym_map fails for net.qc"); 933 ret = -EIO; 934 goto ctrl_area_cleanup; 935 } 936 937 PMD_INIT_LOG(DEBUG, "tx/rx bar address: 0x%p", pf_dev->hw_queues); 938 939 /* 940 * Initialize and prep physical ports now 941 * This will loop through all physical ports 942 */ 943 ret = nfp_init_phyports(pf_dev); 944 if (ret) { 945 PMD_INIT_LOG(ERR, "Could not create physical ports"); 946 goto hwqueues_cleanup; 947 } 948 949 /* register the CPP bridge service here for primary use */ 950 nfp_register_cpp_service(pf_dev->cpp); 951 952 return 0; 953 954 hwqueues_cleanup: 955 nfp_cpp_area_free(pf_dev->hwqueues_area); 956 ctrl_area_cleanup: 957 nfp_cpp_area_free(pf_dev->ctrl_area); 958 pf_cleanup: 959 rte_free(pf_dev); 960 sym_tbl_cleanup: 961 free(sym_tbl); 962 eth_table_cleanup: 963 free(nfp_eth_table); 964 hwinfo_cleanup: 965 free(hwinfo); 966 error: 967 return ret; 968 } 969 970 /* 971 * When attaching to the NFP4000/6000 PF on a secondary process there 972 * is no need to initialise the PF again. Only minimal work is required 973 * here 974 */ 975 static int 976 nfp_pf_secondary_init(struct rte_pci_device *pci_dev) 977 { 978 int i; 979 int err; 980 int total_ports; 981 struct nfp_cpp *cpp; 982 struct nfp_net_hw *hw; 983 struct nfp_rtsym_table *sym_tbl; 984 985 if (pci_dev == NULL) 986 return -ENODEV; 987 988 /* 989 * When device bound to UIO, the device could be used, by mistake, 990 * by two DPDK apps, and the UIO driver does not avoid it. This 991 * could lead to a serious problem when configuring the NFP CPP 992 * interface. Here we avoid this telling to the CPP init code to 993 * use a lock file if UIO is being used. 994 */ 995 if (pci_dev->kdrv == RTE_PCI_KDRV_VFIO) 996 cpp = nfp_cpp_from_device_name(pci_dev, 0); 997 else 998 cpp = nfp_cpp_from_device_name(pci_dev, 1); 999 1000 if (cpp == NULL) { 1001 PMD_INIT_LOG(ERR, "A CPP handle can not be obtained"); 1002 return -EIO; 1003 } 1004 1005 /* 1006 * We don't have access to the PF created in the primary process 1007 * here so we have to read the number of ports from firmware 1008 */ 1009 sym_tbl = nfp_rtsym_table_read(cpp); 1010 if (sym_tbl == NULL) { 1011 PMD_INIT_LOG(ERR, "Something is wrong with the firmware" 1012 " symbol table"); 1013 return -EIO; 1014 } 1015 1016 total_ports = nfp_rtsym_read_le(sym_tbl, "nfd_cfg_pf0_num_ports", &err); 1017 1018 for (i = 0; i < total_ports; i++) { 1019 struct rte_eth_dev *eth_dev; 1020 char port_name[RTE_ETH_NAME_MAX_LEN]; 1021 1022 snprintf(port_name, sizeof(port_name), "%s_port%d", 1023 pci_dev->device.name, i); 1024 1025 PMD_DRV_LOG(DEBUG, "Secondary attaching to port %s", port_name); 1026 eth_dev = rte_eth_dev_attach_secondary(port_name); 1027 if (eth_dev == NULL) { 1028 RTE_LOG(ERR, EAL, 1029 "secondary process attach failed, ethdev doesn't exist"); 1030 return -ENODEV; 1031 } 1032 1033 hw = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); 1034 1035 if (nfp_net_ethdev_ops_mount(hw, eth_dev)) 1036 return -EINVAL; 1037 1038 eth_dev->process_private = cpp; 1039 1040 rte_eth_dev_probing_finish(eth_dev); 1041 } 1042 1043 /* Register the CPP bridge service for the secondary too */ 1044 nfp_register_cpp_service(cpp); 1045 1046 return 0; 1047 } 1048 1049 static int 1050 nfp_pf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, 1051 struct rte_pci_device *dev) 1052 { 1053 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 1054 return nfp_pf_init(dev); 1055 else 1056 return nfp_pf_secondary_init(dev); 1057 } 1058 1059 static const struct rte_pci_id pci_id_nfp_pf_net_map[] = { 1060 { 1061 RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME, 1062 PCI_DEVICE_ID_NFP3800_PF_NIC) 1063 }, 1064 { 1065 RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME, 1066 PCI_DEVICE_ID_NFP4000_PF_NIC) 1067 }, 1068 { 1069 RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME, 1070 PCI_DEVICE_ID_NFP6000_PF_NIC) 1071 }, 1072 { 1073 .vendor_id = 0, 1074 }, 1075 }; 1076 1077 static int 1078 nfp_pci_uninit(struct rte_eth_dev *eth_dev) 1079 { 1080 struct rte_pci_device *pci_dev; 1081 uint16_t port_id; 1082 1083 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev); 1084 1085 /* Free up all physical ports under PF */ 1086 RTE_ETH_FOREACH_DEV_OF(port_id, &pci_dev->device) 1087 rte_eth_dev_close(port_id); 1088 /* 1089 * Ports can be closed and freed but hotplugging is not 1090 * currently supported 1091 */ 1092 return -ENOTSUP; 1093 } 1094 1095 static int 1096 eth_nfp_pci_remove(struct rte_pci_device *pci_dev) 1097 { 1098 return rte_eth_dev_pci_generic_remove(pci_dev, nfp_pci_uninit); 1099 } 1100 1101 static struct rte_pci_driver rte_nfp_net_pf_pmd = { 1102 .id_table = pci_id_nfp_pf_net_map, 1103 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC, 1104 .probe = nfp_pf_pci_probe, 1105 .remove = eth_nfp_pci_remove, 1106 }; 1107 1108 RTE_PMD_REGISTER_PCI(net_nfp_pf, rte_nfp_net_pf_pmd); 1109 RTE_PMD_REGISTER_PCI_TABLE(net_nfp_pf, pci_id_nfp_pf_net_map); 1110 RTE_PMD_REGISTER_KMOD_DEP(net_nfp_pf, "* igb_uio | uio_pci_generic | vfio"); 1111 /* 1112 * Local variables: 1113 * c-file-style: "Linux" 1114 * indent-tabs-mode: t 1115 * End: 1116 */ 1117