1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019 Cesnet
3 * Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
9 #include <netcope/rxmac.h>
10 #include <netcope/txmac.h>
12 #include <rte_ethdev_pci.h>
13 #include <rte_kvargs.h>
15 #include "nfb_stats.h"
18 #include "nfb_rxmode.h"
24 static const struct rte_ether_addr eth_addr = {
25 .addr_bytes = { 0x00, 0x11, 0x17, 0x00, 0x00, 0x00 }
29 * Open all RX DMA queues
32 * Pointer to nfb device.
34 * Pointer to output array of nc_rxmac
35 * @param[out] max_rxmac
36 * Pointer to output max index of rxmac
39 nfb_nc_rxmac_init(struct nfb_device *nfb,
40 struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC],
44 while ((rxmac[*max_rxmac] = nc_rxmac_open_index(nfb, *max_rxmac)))
49 * Open all TX DMA queues
52 * Pointer to nfb device.
54 * Pointer to output array of nc_txmac
55 * @param[out] max_rxmac
56 * Pointer to output max index of txmac
59 nfb_nc_txmac_init(struct nfb_device *nfb,
60 struct nc_txmac *txmac[RTE_MAX_NC_TXMAC],
64 while ((txmac[*max_txmac] = nc_txmac_open_index(nfb, *max_txmac)))
69 * Close all RX DMA queues
72 * Pointer to array of nc_rxmac
74 * Maximum index of rxmac
77 nfb_nc_rxmac_deinit(struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC],
80 for (; max_rxmac > 0; --max_rxmac) {
81 nc_rxmac_close(rxmac[max_rxmac]);
82 rxmac[max_rxmac] = NULL;
87 * Close all TX DMA queues
90 * Pointer to array of nc_txmac
92 * Maximum index of txmac
95 nfb_nc_txmac_deinit(struct nc_txmac *txmac[RTE_MAX_NC_TXMAC],
98 for (; max_txmac > 0; --max_txmac) {
99 nc_txmac_close(txmac[max_txmac]);
100 txmac[max_txmac] = NULL;
105 * DPDK callback to start the device.
107 * Start device by starting all configured queues.
110 * Pointer to Ethernet device structure.
113 * 0 on success, a negative errno value otherwise.
116 nfb_eth_dev_start(struct rte_eth_dev *dev)
120 uint16_t nb_rx = dev->data->nb_rx_queues;
121 uint16_t nb_tx = dev->data->nb_tx_queues;
123 for (i = 0; i < nb_rx; i++) {
124 ret = nfb_eth_rx_queue_start(dev, i);
129 for (i = 0; i < nb_tx; i++) {
130 ret = nfb_eth_tx_queue_start(dev, i);
138 for (i = 0; i < nb_tx; i++)
139 nfb_eth_tx_queue_stop(dev, i);
141 for (i = 0; i < nb_rx; i++)
142 nfb_eth_rx_queue_stop(dev, i);
147 * DPDK callback to stop the device.
149 * Stop device by stopping all configured queues.
152 * Pointer to Ethernet device structure.
155 nfb_eth_dev_stop(struct rte_eth_dev *dev)
158 uint16_t nb_rx = dev->data->nb_rx_queues;
159 uint16_t nb_tx = dev->data->nb_tx_queues;
161 for (i = 0; i < nb_tx; i++)
162 nfb_eth_tx_queue_stop(dev, i);
164 for (i = 0; i < nb_rx; i++)
165 nfb_eth_rx_queue_stop(dev, i);
169 * DPDK callback for Ethernet device configuration.
172 * Pointer to Ethernet device structure.
175 * 0 on success, a negative errno value otherwise.
178 nfb_eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
184 * DPDK callback to get information about the device.
187 * Pointer to Ethernet device structure.
189 * Info structure output buffer.
192 nfb_eth_dev_info(struct rte_eth_dev *dev,
193 struct rte_eth_dev_info *dev_info)
195 dev_info->max_mac_addrs = 1;
196 dev_info->max_rx_pktlen = (uint32_t)-1;
197 dev_info->max_rx_queues = dev->data->nb_rx_queues;
198 dev_info->max_tx_queues = dev->data->nb_tx_queues;
199 dev_info->speed_capa = ETH_LINK_SPEED_100G;
205 * DPDK callback to close the device.
207 * Destroy all queues and objects, free memory.
210 * Pointer to Ethernet device structure.
213 nfb_eth_dev_close(struct rte_eth_dev *dev)
215 struct pmd_internals *internals = dev->data->dev_private;
217 uint16_t nb_rx = dev->data->nb_rx_queues;
218 uint16_t nb_tx = dev->data->nb_tx_queues;
220 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
223 nfb_eth_dev_stop(dev);
225 nfb_nc_rxmac_deinit(internals->rxmac, internals->max_rxmac);
226 nfb_nc_txmac_deinit(internals->txmac, internals->max_txmac);
228 for (i = 0; i < nb_rx; i++) {
229 nfb_eth_rx_queue_release(dev->data->rx_queues[i]);
230 dev->data->rx_queues[i] = NULL;
232 dev->data->nb_rx_queues = 0;
233 for (i = 0; i < nb_tx; i++) {
234 nfb_eth_tx_queue_release(dev->data->tx_queues[i]);
235 dev->data->tx_queues[i] = NULL;
237 dev->data->nb_tx_queues = 0;
243 * DPDK callback to retrieve physical link information.
246 * Pointer to Ethernet device structure.
248 * Storage for current link status.
251 * 0 on success, a negative errno value otherwise.
254 nfb_eth_link_update(struct rte_eth_dev *dev,
255 int wait_to_complete __rte_unused)
258 struct nc_rxmac_status status;
259 struct rte_eth_link link;
260 memset(&link, 0, sizeof(link));
262 struct pmd_internals *internals = dev->data->dev_private;
264 status.speed = MAC_SPEED_UNKNOWN;
266 link.link_speed = ETH_SPEED_NUM_NONE;
267 link.link_status = ETH_LINK_DOWN;
268 link.link_duplex = ETH_LINK_FULL_DUPLEX;
269 link.link_autoneg = ETH_LINK_SPEED_FIXED;
271 if (internals->rxmac[0] != NULL) {
272 nc_rxmac_read_status(internals->rxmac[0], &status);
274 switch (status.speed) {
276 link.link_speed = ETH_SPEED_NUM_10G;
279 link.link_speed = ETH_SPEED_NUM_40G;
282 link.link_speed = ETH_SPEED_NUM_100G;
285 link.link_speed = ETH_SPEED_NUM_NONE;
290 for (i = 0; i < internals->max_rxmac; ++i) {
291 nc_rxmac_read_status(internals->rxmac[i], &status);
293 if (status.enabled && status.link_up) {
294 link.link_status = ETH_LINK_UP;
299 rte_eth_linkstatus_set(dev, &link);
305 * DPDK callback to bring the link UP.
308 * Pointer to Ethernet device structure.
311 * 0 on success, a negative errno value otherwise.
314 nfb_eth_dev_set_link_up(struct rte_eth_dev *dev)
316 struct pmd_internals *internals = (struct pmd_internals *)
317 dev->data->dev_private;
320 for (i = 0; i < internals->max_rxmac; ++i)
321 nc_rxmac_enable(internals->rxmac[i]);
323 for (i = 0; i < internals->max_txmac; ++i)
324 nc_txmac_enable(internals->txmac[i]);
330 * DPDK callback to bring the link DOWN.
333 * Pointer to Ethernet device structure.
336 * 0 on success, a negative errno value otherwise.
339 nfb_eth_dev_set_link_down(struct rte_eth_dev *dev)
341 struct pmd_internals *internals = (struct pmd_internals *)
342 dev->data->dev_private;
345 for (i = 0; i < internals->max_rxmac; ++i)
346 nc_rxmac_disable(internals->rxmac[i]);
348 for (i = 0; i < internals->max_txmac; ++i)
349 nc_txmac_disable(internals->txmac[i]);
355 * DPDK callback to set primary MAC address.
358 * Pointer to Ethernet device structure.
360 * MAC address to register.
363 * 0 on success, a negative errno value otherwise.
366 nfb_eth_mac_addr_set(struct rte_eth_dev *dev,
367 struct rte_ether_addr *mac_addr)
371 struct rte_eth_dev_data *data = dev->data;
372 struct pmd_internals *internals = (struct pmd_internals *)
375 if (!rte_is_valid_assigned_ether_addr(mac_addr))
378 for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
380 mac |= mac_addr->addr_bytes[i] & 0xFF;
383 for (i = 0; i < internals->max_rxmac; ++i)
384 nc_rxmac_set_mac(internals->rxmac[i], 0, mac, 1);
386 rte_ether_addr_copy(mac_addr, data->mac_addrs);
390 static const struct eth_dev_ops ops = {
391 .dev_start = nfb_eth_dev_start,
392 .dev_stop = nfb_eth_dev_stop,
393 .dev_set_link_up = nfb_eth_dev_set_link_up,
394 .dev_set_link_down = nfb_eth_dev_set_link_down,
395 .dev_close = nfb_eth_dev_close,
396 .dev_configure = nfb_eth_dev_configure,
397 .dev_infos_get = nfb_eth_dev_info,
398 .promiscuous_enable = nfb_eth_promiscuous_enable,
399 .promiscuous_disable = nfb_eth_promiscuous_disable,
400 .allmulticast_enable = nfb_eth_allmulticast_enable,
401 .allmulticast_disable = nfb_eth_allmulticast_disable,
402 .rx_queue_start = nfb_eth_rx_queue_start,
403 .rx_queue_stop = nfb_eth_rx_queue_stop,
404 .tx_queue_start = nfb_eth_tx_queue_start,
405 .tx_queue_stop = nfb_eth_tx_queue_stop,
406 .rx_queue_setup = nfb_eth_rx_queue_setup,
407 .tx_queue_setup = nfb_eth_tx_queue_setup,
408 .rx_queue_release = nfb_eth_rx_queue_release,
409 .tx_queue_release = nfb_eth_tx_queue_release,
410 .link_update = nfb_eth_link_update,
411 .stats_get = nfb_eth_stats_get,
412 .stats_reset = nfb_eth_stats_reset,
413 .mac_addr_set = nfb_eth_mac_addr_set,
417 * DPDK callback to initialize an ethernet device
420 * Pointer to ethernet device structure
423 * 0 on success, a negative errno value otherwise.
426 nfb_eth_dev_init(struct rte_eth_dev *dev)
428 struct rte_eth_dev_data *data = dev->data;
429 struct pmd_internals *internals = (struct pmd_internals *)
431 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
432 struct rte_pci_addr *pci_addr = &pci_dev->addr;
433 struct rte_ether_addr eth_addr_init;
434 struct rte_kvargs *kvlist;
436 RTE_LOG(INFO, PMD, "Initializing NFB device (" PCI_PRI_FMT ")\n",
437 pci_addr->domain, pci_addr->bus, pci_addr->devid,
440 snprintf(internals->nfb_dev, PATH_MAX,
441 "/dev/nfb/by-pci-slot/" PCI_PRI_FMT,
442 pci_addr->domain, pci_addr->bus, pci_addr->devid,
445 /* Check validity of device args */
446 if (dev->device->devargs != NULL &&
447 dev->device->devargs->args != NULL &&
448 strlen(dev->device->devargs->args) > 0) {
449 kvlist = rte_kvargs_parse(dev->device->devargs->args,
451 if (kvlist == NULL) {
452 RTE_LOG(ERR, PMD, "Failed to parse device arguments %s",
453 dev->device->devargs->args);
454 rte_kvargs_free(kvlist);
457 rte_kvargs_free(kvlist);
461 * Get number of available DMA RX and TX queues, which is maximum
462 * number of queues that can be created and store it in private device
465 internals->nfb = nfb_open(internals->nfb_dev);
466 if (internals->nfb == NULL) {
467 RTE_LOG(ERR, PMD, "nfb_open(): failed to open %s",
471 data->nb_rx_queues = ndp_get_rx_queue_available_count(internals->nfb);
472 data->nb_tx_queues = ndp_get_tx_queue_available_count(internals->nfb);
474 RTE_LOG(INFO, PMD, "Available NDP queues RX: %u TX: %u\n",
475 data->nb_rx_queues, data->nb_tx_queues);
477 nfb_nc_rxmac_init(internals->nfb,
479 &internals->max_rxmac);
480 nfb_nc_txmac_init(internals->nfb,
482 &internals->max_txmac);
484 /* Set rx, tx burst functions */
485 dev->rx_pkt_burst = nfb_eth_ndp_rx;
486 dev->tx_pkt_burst = nfb_eth_ndp_tx;
488 /* Set function callbacks for Ethernet API */
492 nfb_eth_link_update(dev, 0);
494 /* Allocate space for one mac address */
495 data->mac_addrs = rte_zmalloc(data->name, sizeof(struct rte_ether_addr),
496 RTE_CACHE_LINE_SIZE);
497 if (data->mac_addrs == NULL) {
498 RTE_LOG(ERR, PMD, "Could not alloc space for MAC address!\n");
499 nfb_close(internals->nfb);
503 rte_eth_random_addr(eth_addr_init.addr_bytes);
504 eth_addr_init.addr_bytes[0] = eth_addr.addr_bytes[0];
505 eth_addr_init.addr_bytes[1] = eth_addr.addr_bytes[1];
506 eth_addr_init.addr_bytes[2] = eth_addr.addr_bytes[2];
508 nfb_eth_mac_addr_set(dev, ð_addr_init);
510 data->promiscuous = nfb_eth_promiscuous_get(dev);
511 data->all_multicast = nfb_eth_allmulticast_get(dev);
512 internals->rx_filter_original = data->promiscuous;
514 RTE_LOG(INFO, PMD, "NFB device ("
515 PCI_PRI_FMT ") successfully initialized\n",
516 pci_addr->domain, pci_addr->bus, pci_addr->devid,
523 * DPDK callback to uninitialize an ethernet device
526 * Pointer to ethernet device structure
529 * 0 on success, a negative errno value otherwise.
532 nfb_eth_dev_uninit(struct rte_eth_dev *dev)
534 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
535 struct rte_pci_addr *pci_addr = &pci_dev->addr;
537 nfb_eth_dev_close(dev);
539 RTE_LOG(INFO, PMD, "NFB device ("
540 PCI_PRI_FMT ") successfully uninitialized\n",
541 pci_addr->domain, pci_addr->bus, pci_addr->devid,
547 static const struct rte_pci_id nfb_pci_id_table[] = {
548 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_40G2) },
549 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_100G2) },
550 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_200G2QL) },
551 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3) },
552 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3D) },
557 * DPDK callback to register a PCI device.
559 * This function spawns Ethernet devices out of a given PCI device.
562 * PCI driver structure (nfb_driver).
564 * PCI device information.
567 * 0 on success, a negative errno value otherwise.
570 nfb_eth_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
571 struct rte_pci_device *pci_dev)
573 return rte_eth_dev_pci_generic_probe(pci_dev,
574 sizeof(struct pmd_internals), nfb_eth_dev_init);
578 * DPDK callback to remove a PCI device.
580 * This function removes all Ethernet devices belong to a given PCI device.
583 * Pointer to the PCI device.
586 * 0 on success, the function cannot fail.
589 nfb_eth_pci_remove(struct rte_pci_device *pci_dev)
591 return rte_eth_dev_pci_generic_remove(pci_dev, nfb_eth_dev_uninit);
594 static struct rte_pci_driver nfb_eth_driver = {
595 .id_table = nfb_pci_id_table,
596 .probe = nfb_eth_pci_probe,
597 .remove = nfb_eth_pci_remove,
600 RTE_PMD_REGISTER_PCI(RTE_NFB_DRIVER_NAME, nfb_eth_driver);
601 RTE_PMD_REGISTER_PCI_TABLE(RTE_NFB_DRIVER_NAME, nfb_pci_id_table);
602 RTE_PMD_REGISTER_KMOD_DEP(RTE_NFB_DRIVER_NAME, "* nfb");
603 RTE_PMD_REGISTER_PARAM_STRING(RTE_NFB_DRIVER_NAME, TIMESTAMP_ARG "=<0|1>");