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;
203 * DPDK callback to close the device.
205 * Destroy all queues and objects, free memory.
208 * Pointer to Ethernet device structure.
211 nfb_eth_dev_close(struct rte_eth_dev *dev)
214 uint16_t nb_rx = dev->data->nb_rx_queues;
215 uint16_t nb_tx = dev->data->nb_tx_queues;
217 nfb_eth_dev_stop(dev);
219 for (i = 0; i < nb_rx; i++) {
220 nfb_eth_rx_queue_release(dev->data->rx_queues[i]);
221 dev->data->rx_queues[i] = NULL;
223 dev->data->nb_rx_queues = 0;
224 for (i = 0; i < nb_tx; i++) {
225 nfb_eth_tx_queue_release(dev->data->tx_queues[i]);
226 dev->data->tx_queues[i] = NULL;
228 dev->data->nb_tx_queues = 0;
232 * DPDK callback to retrieve physical link information.
235 * Pointer to Ethernet device structure.
237 * Storage for current link status.
240 * 0 on success, a negative errno value otherwise.
243 nfb_eth_link_update(struct rte_eth_dev *dev,
244 int wait_to_complete __rte_unused)
247 struct nc_rxmac_status status;
248 struct rte_eth_link link;
249 memset(&link, 0, sizeof(link));
251 struct pmd_internals *internals = dev->data->dev_private;
253 status.speed = MAC_SPEED_UNKNOWN;
255 link.link_speed = ETH_SPEED_NUM_NONE;
256 link.link_status = ETH_LINK_DOWN;
257 link.link_duplex = ETH_LINK_FULL_DUPLEX;
258 link.link_autoneg = ETH_LINK_SPEED_FIXED;
260 if (internals->rxmac[0] != NULL) {
261 nc_rxmac_read_status(internals->rxmac[0], &status);
263 switch (status.speed) {
265 link.link_speed = ETH_SPEED_NUM_10G;
268 link.link_speed = ETH_SPEED_NUM_40G;
271 link.link_speed = ETH_SPEED_NUM_100G;
274 link.link_speed = ETH_SPEED_NUM_NONE;
279 for (i = 0; i < internals->max_rxmac; ++i) {
280 nc_rxmac_read_status(internals->rxmac[i], &status);
282 if (status.enabled && status.link_up) {
283 link.link_status = ETH_LINK_UP;
288 rte_eth_linkstatus_set(dev, &link);
294 * DPDK callback to bring the link UP.
297 * Pointer to Ethernet device structure.
300 * 0 on success, a negative errno value otherwise.
303 nfb_eth_dev_set_link_up(struct rte_eth_dev *dev)
305 struct pmd_internals *internals = (struct pmd_internals *)
306 dev->data->dev_private;
309 for (i = 0; i < internals->max_rxmac; ++i)
310 nc_rxmac_enable(internals->rxmac[i]);
312 for (i = 0; i < internals->max_txmac; ++i)
313 nc_txmac_enable(internals->txmac[i]);
319 * DPDK callback to bring the link DOWN.
322 * Pointer to Ethernet device structure.
325 * 0 on success, a negative errno value otherwise.
328 nfb_eth_dev_set_link_down(struct rte_eth_dev *dev)
330 struct pmd_internals *internals = (struct pmd_internals *)
331 dev->data->dev_private;
334 for (i = 0; i < internals->max_rxmac; ++i)
335 nc_rxmac_disable(internals->rxmac[i]);
337 for (i = 0; i < internals->max_txmac; ++i)
338 nc_txmac_disable(internals->txmac[i]);
344 * DPDK callback to set primary MAC address.
347 * Pointer to Ethernet device structure.
349 * MAC address to register.
352 * 0 on success, a negative errno value otherwise.
355 nfb_eth_mac_addr_set(struct rte_eth_dev *dev,
356 struct rte_ether_addr *mac_addr)
360 struct rte_eth_dev_data *data = dev->data;
361 struct pmd_internals *internals = (struct pmd_internals *)
364 if (!rte_is_valid_assigned_ether_addr(mac_addr))
367 for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
369 mac |= mac_addr->addr_bytes[i] & 0xFF;
372 for (i = 0; i < internals->max_rxmac; ++i)
373 nc_rxmac_set_mac(internals->rxmac[i], 0, mac, 1);
375 rte_ether_addr_copy(mac_addr, data->mac_addrs);
379 static const struct eth_dev_ops ops = {
380 .dev_start = nfb_eth_dev_start,
381 .dev_stop = nfb_eth_dev_stop,
382 .dev_set_link_up = nfb_eth_dev_set_link_up,
383 .dev_set_link_down = nfb_eth_dev_set_link_down,
384 .dev_close = nfb_eth_dev_close,
385 .dev_configure = nfb_eth_dev_configure,
386 .dev_infos_get = nfb_eth_dev_info,
387 .promiscuous_enable = nfb_eth_promiscuous_enable,
388 .promiscuous_disable = nfb_eth_promiscuous_disable,
389 .allmulticast_enable = nfb_eth_allmulticast_enable,
390 .allmulticast_disable = nfb_eth_allmulticast_disable,
391 .rx_queue_start = nfb_eth_rx_queue_start,
392 .rx_queue_stop = nfb_eth_rx_queue_stop,
393 .tx_queue_start = nfb_eth_tx_queue_start,
394 .tx_queue_stop = nfb_eth_tx_queue_stop,
395 .rx_queue_setup = nfb_eth_rx_queue_setup,
396 .tx_queue_setup = nfb_eth_tx_queue_setup,
397 .rx_queue_release = nfb_eth_rx_queue_release,
398 .tx_queue_release = nfb_eth_tx_queue_release,
399 .link_update = nfb_eth_link_update,
400 .stats_get = nfb_eth_stats_get,
401 .stats_reset = nfb_eth_stats_reset,
402 .mac_addr_set = nfb_eth_mac_addr_set,
406 * DPDK callback to initialize an ethernet device
409 * Pointer to ethernet device structure
412 * 0 on success, a negative errno value otherwise.
415 nfb_eth_dev_init(struct rte_eth_dev *dev)
417 struct rte_eth_dev_data *data = dev->data;
418 struct pmd_internals *internals = (struct pmd_internals *)
420 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
421 struct rte_pci_addr *pci_addr = &pci_dev->addr;
422 struct rte_ether_addr eth_addr_init;
423 struct rte_kvargs *kvlist;
425 RTE_LOG(INFO, PMD, "Initializing NFB device (" PCI_PRI_FMT ")\n",
426 pci_addr->domain, pci_addr->bus, pci_addr->devid,
429 snprintf(internals->nfb_dev, PATH_MAX,
430 "/dev/nfb/by-pci-slot/" PCI_PRI_FMT,
431 pci_addr->domain, pci_addr->bus, pci_addr->devid,
434 /* Check validity of device args */
435 if (dev->device->devargs != NULL &&
436 dev->device->devargs->args != NULL &&
437 strlen(dev->device->devargs->args) > 0) {
438 kvlist = rte_kvargs_parse(dev->device->devargs->args,
440 if (kvlist == NULL) {
441 RTE_LOG(ERR, PMD, "Failed to parse device arguments %s",
442 dev->device->devargs->args);
443 rte_kvargs_free(kvlist);
446 rte_kvargs_free(kvlist);
450 * Get number of available DMA RX and TX queues, which is maximum
451 * number of queues that can be created and store it in private device
454 internals->nfb = nfb_open(internals->nfb_dev);
455 if (internals->nfb == NULL) {
456 RTE_LOG(ERR, PMD, "nfb_open(): failed to open %s",
460 data->nb_rx_queues = ndp_get_rx_queue_available_count(internals->nfb);
461 data->nb_tx_queues = ndp_get_tx_queue_available_count(internals->nfb);
463 RTE_LOG(INFO, PMD, "Available NDP queues RX: %u TX: %u\n",
464 data->nb_rx_queues, data->nb_tx_queues);
466 nfb_nc_rxmac_init(internals->nfb,
468 &internals->max_rxmac);
469 nfb_nc_txmac_init(internals->nfb,
471 &internals->max_txmac);
473 /* Set rx, tx burst functions */
474 dev->rx_pkt_burst = nfb_eth_ndp_rx;
475 dev->tx_pkt_burst = nfb_eth_ndp_tx;
477 /* Set function callbacks for Ethernet API */
481 nfb_eth_link_update(dev, 0);
483 /* Allocate space for one mac address */
484 data->mac_addrs = rte_zmalloc(data->name, sizeof(struct rte_ether_addr),
485 RTE_CACHE_LINE_SIZE);
486 if (data->mac_addrs == NULL) {
487 RTE_LOG(ERR, PMD, "Could not alloc space for MAC address!\n");
488 nfb_close(internals->nfb);
492 rte_eth_random_addr(eth_addr_init.addr_bytes);
493 eth_addr_init.addr_bytes[0] = eth_addr.addr_bytes[0];
494 eth_addr_init.addr_bytes[1] = eth_addr.addr_bytes[1];
495 eth_addr_init.addr_bytes[2] = eth_addr.addr_bytes[2];
497 nfb_eth_mac_addr_set(dev, ð_addr_init);
499 data->promiscuous = nfb_eth_promiscuous_get(dev);
500 data->all_multicast = nfb_eth_allmulticast_get(dev);
501 internals->rx_filter_original = data->promiscuous;
503 RTE_LOG(INFO, PMD, "NFB device ("
504 PCI_PRI_FMT ") successfully initialized\n",
505 pci_addr->domain, pci_addr->bus, pci_addr->devid,
512 * DPDK callback to uninitialize an ethernet device
515 * Pointer to ethernet device structure
518 * 0 on success, a negative errno value otherwise.
521 nfb_eth_dev_uninit(struct rte_eth_dev *dev)
523 struct rte_eth_dev_data *data = dev->data;
524 struct pmd_internals *internals = (struct pmd_internals *)
527 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
528 struct rte_pci_addr *pci_addr = &pci_dev->addr;
530 nfb_nc_rxmac_deinit(internals->rxmac, internals->max_rxmac);
531 nfb_nc_txmac_deinit(internals->txmac, internals->max_txmac);
533 RTE_LOG(INFO, PMD, "NFB device ("
534 PCI_PRI_FMT ") successfully uninitialized\n",
535 pci_addr->domain, pci_addr->bus, pci_addr->devid,
541 static const struct rte_pci_id nfb_pci_id_table[] = {
542 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_40G2) },
543 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_100G2) },
544 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_200G2QL) },
545 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3) },
546 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3D) },
551 * DPDK callback to register a PCI device.
553 * This function spawns Ethernet devices out of a given PCI device.
556 * PCI driver structure (nfb_driver).
558 * PCI device information.
561 * 0 on success, a negative errno value otherwise.
564 nfb_eth_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
565 struct rte_pci_device *pci_dev)
567 return rte_eth_dev_pci_generic_probe(pci_dev,
568 sizeof(struct pmd_internals), nfb_eth_dev_init);
572 * DPDK callback to remove a PCI device.
574 * This function removes all Ethernet devices belong to a given PCI device.
577 * Pointer to the PCI device.
580 * 0 on success, the function cannot fail.
583 nfb_eth_pci_remove(struct rte_pci_device *pci_dev)
585 return rte_eth_dev_pci_generic_remove(pci_dev, nfb_eth_dev_uninit);
588 static struct rte_pci_driver nfb_eth_driver = {
589 .id_table = nfb_pci_id_table,
590 .probe = nfb_eth_pci_probe,
591 .remove = nfb_eth_pci_remove,
594 RTE_PMD_REGISTER_PCI(RTE_NFB_DRIVER_NAME, nfb_eth_driver);
595 RTE_PMD_REGISTER_PCI_TABLE(RTE_NFB_DRIVER_NAME, nfb_pci_id_table);
596 RTE_PMD_REGISTER_KMOD_DEP(RTE_NFB_DRIVER_NAME, "* nfb");
597 RTE_PMD_REGISTER_PARAM_STRING(RTE_NFB_DRIVER_NAME, TIMESTAMP_ARG "=<0|1>");