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 <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 dev->data->dev_started = 0;
163 for (i = 0; i < nb_tx; i++)
164 nfb_eth_tx_queue_stop(dev, i);
166 for (i = 0; i < nb_rx; i++)
167 nfb_eth_rx_queue_stop(dev, i);
173 * DPDK callback for Ethernet device configuration.
176 * Pointer to Ethernet device structure.
179 * 0 on success, a negative errno value otherwise.
182 nfb_eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
188 * DPDK callback to get information about the device.
191 * Pointer to Ethernet device structure.
193 * Info structure output buffer.
196 nfb_eth_dev_info(struct rte_eth_dev *dev,
197 struct rte_eth_dev_info *dev_info)
199 dev_info->max_mac_addrs = 1;
200 dev_info->max_rx_pktlen = (uint32_t)-1;
201 dev_info->max_rx_queues = dev->data->nb_rx_queues;
202 dev_info->max_tx_queues = dev->data->nb_tx_queues;
203 dev_info->speed_capa = ETH_LINK_SPEED_100G;
209 * DPDK callback to close the device.
211 * Destroy all queues and objects, free memory.
214 * Pointer to Ethernet device structure.
217 nfb_eth_dev_close(struct rte_eth_dev *dev)
219 struct pmd_internals *internals = dev->data->dev_private;
221 uint16_t nb_rx = dev->data->nb_rx_queues;
222 uint16_t nb_tx = dev->data->nb_tx_queues;
225 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
228 ret = nfb_eth_dev_stop(dev);
230 nfb_nc_rxmac_deinit(internals->rxmac, internals->max_rxmac);
231 nfb_nc_txmac_deinit(internals->txmac, internals->max_txmac);
233 for (i = 0; i < nb_rx; i++) {
234 nfb_eth_rx_queue_release(dev->data->rx_queues[i]);
235 dev->data->rx_queues[i] = NULL;
237 dev->data->nb_rx_queues = 0;
238 for (i = 0; i < nb_tx; i++) {
239 nfb_eth_tx_queue_release(dev->data->tx_queues[i]);
240 dev->data->tx_queues[i] = NULL;
242 dev->data->nb_tx_queues = 0;
248 * DPDK callback to retrieve physical link information.
251 * Pointer to Ethernet device structure.
253 * Storage for current link status.
256 * 0 on success, a negative errno value otherwise.
259 nfb_eth_link_update(struct rte_eth_dev *dev,
260 int wait_to_complete __rte_unused)
263 struct nc_rxmac_status status;
264 struct rte_eth_link link;
265 memset(&link, 0, sizeof(link));
267 struct pmd_internals *internals = dev->data->dev_private;
269 status.speed = MAC_SPEED_UNKNOWN;
271 link.link_speed = ETH_SPEED_NUM_NONE;
272 link.link_status = ETH_LINK_DOWN;
273 link.link_duplex = ETH_LINK_FULL_DUPLEX;
274 link.link_autoneg = ETH_LINK_SPEED_FIXED;
276 if (internals->rxmac[0] != NULL) {
277 nc_rxmac_read_status(internals->rxmac[0], &status);
279 switch (status.speed) {
281 link.link_speed = ETH_SPEED_NUM_10G;
284 link.link_speed = ETH_SPEED_NUM_40G;
287 link.link_speed = ETH_SPEED_NUM_100G;
290 link.link_speed = ETH_SPEED_NUM_NONE;
295 for (i = 0; i < internals->max_rxmac; ++i) {
296 nc_rxmac_read_status(internals->rxmac[i], &status);
298 if (status.enabled && status.link_up) {
299 link.link_status = ETH_LINK_UP;
304 rte_eth_linkstatus_set(dev, &link);
310 * DPDK callback to bring the link UP.
313 * Pointer to Ethernet device structure.
316 * 0 on success, a negative errno value otherwise.
319 nfb_eth_dev_set_link_up(struct rte_eth_dev *dev)
321 struct pmd_internals *internals = (struct pmd_internals *)
322 dev->data->dev_private;
325 for (i = 0; i < internals->max_rxmac; ++i)
326 nc_rxmac_enable(internals->rxmac[i]);
328 for (i = 0; i < internals->max_txmac; ++i)
329 nc_txmac_enable(internals->txmac[i]);
335 * DPDK callback to bring the link DOWN.
338 * Pointer to Ethernet device structure.
341 * 0 on success, a negative errno value otherwise.
344 nfb_eth_dev_set_link_down(struct rte_eth_dev *dev)
346 struct pmd_internals *internals = (struct pmd_internals *)
347 dev->data->dev_private;
350 for (i = 0; i < internals->max_rxmac; ++i)
351 nc_rxmac_disable(internals->rxmac[i]);
353 for (i = 0; i < internals->max_txmac; ++i)
354 nc_txmac_disable(internals->txmac[i]);
360 * DPDK callback to set primary MAC address.
363 * Pointer to Ethernet device structure.
365 * MAC address to register.
368 * 0 on success, a negative errno value otherwise.
371 nfb_eth_mac_addr_set(struct rte_eth_dev *dev,
372 struct rte_ether_addr *mac_addr)
376 struct rte_eth_dev_data *data = dev->data;
377 struct pmd_internals *internals = (struct pmd_internals *)
380 if (!rte_is_valid_assigned_ether_addr(mac_addr))
383 for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
385 mac |= mac_addr->addr_bytes[i] & 0xFF;
388 for (i = 0; i < internals->max_rxmac; ++i)
389 nc_rxmac_set_mac(internals->rxmac[i], 0, mac, 1);
391 rte_ether_addr_copy(mac_addr, data->mac_addrs);
395 static const struct eth_dev_ops ops = {
396 .dev_start = nfb_eth_dev_start,
397 .dev_stop = nfb_eth_dev_stop,
398 .dev_set_link_up = nfb_eth_dev_set_link_up,
399 .dev_set_link_down = nfb_eth_dev_set_link_down,
400 .dev_close = nfb_eth_dev_close,
401 .dev_configure = nfb_eth_dev_configure,
402 .dev_infos_get = nfb_eth_dev_info,
403 .promiscuous_enable = nfb_eth_promiscuous_enable,
404 .promiscuous_disable = nfb_eth_promiscuous_disable,
405 .allmulticast_enable = nfb_eth_allmulticast_enable,
406 .allmulticast_disable = nfb_eth_allmulticast_disable,
407 .rx_queue_start = nfb_eth_rx_queue_start,
408 .rx_queue_stop = nfb_eth_rx_queue_stop,
409 .tx_queue_start = nfb_eth_tx_queue_start,
410 .tx_queue_stop = nfb_eth_tx_queue_stop,
411 .rx_queue_setup = nfb_eth_rx_queue_setup,
412 .tx_queue_setup = nfb_eth_tx_queue_setup,
413 .rx_queue_release = nfb_eth_rx_queue_release,
414 .tx_queue_release = nfb_eth_tx_queue_release,
415 .link_update = nfb_eth_link_update,
416 .stats_get = nfb_eth_stats_get,
417 .stats_reset = nfb_eth_stats_reset,
418 .mac_addr_set = nfb_eth_mac_addr_set,
422 * DPDK callback to initialize an ethernet device
425 * Pointer to ethernet device structure
428 * 0 on success, a negative errno value otherwise.
431 nfb_eth_dev_init(struct rte_eth_dev *dev)
433 struct rte_eth_dev_data *data = dev->data;
434 struct pmd_internals *internals = (struct pmd_internals *)
436 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
437 struct rte_pci_addr *pci_addr = &pci_dev->addr;
438 struct rte_ether_addr eth_addr_init;
439 struct rte_kvargs *kvlist;
441 RTE_LOG(INFO, PMD, "Initializing NFB device (" PCI_PRI_FMT ")\n",
442 pci_addr->domain, pci_addr->bus, pci_addr->devid,
445 snprintf(internals->nfb_dev, PATH_MAX,
446 "/dev/nfb/by-pci-slot/" PCI_PRI_FMT,
447 pci_addr->domain, pci_addr->bus, pci_addr->devid,
450 /* Check validity of device args */
451 if (dev->device->devargs != NULL &&
452 dev->device->devargs->args != NULL &&
453 strlen(dev->device->devargs->args) > 0) {
454 kvlist = rte_kvargs_parse(dev->device->devargs->args,
456 if (kvlist == NULL) {
457 RTE_LOG(ERR, PMD, "Failed to parse device arguments %s",
458 dev->device->devargs->args);
459 rte_kvargs_free(kvlist);
462 rte_kvargs_free(kvlist);
466 * Get number of available DMA RX and TX queues, which is maximum
467 * number of queues that can be created and store it in private device
470 internals->nfb = nfb_open(internals->nfb_dev);
471 if (internals->nfb == NULL) {
472 RTE_LOG(ERR, PMD, "nfb_open(): failed to open %s",
476 data->nb_rx_queues = ndp_get_rx_queue_available_count(internals->nfb);
477 data->nb_tx_queues = ndp_get_tx_queue_available_count(internals->nfb);
479 RTE_LOG(INFO, PMD, "Available NDP queues RX: %u TX: %u\n",
480 data->nb_rx_queues, data->nb_tx_queues);
482 nfb_nc_rxmac_init(internals->nfb,
484 &internals->max_rxmac);
485 nfb_nc_txmac_init(internals->nfb,
487 &internals->max_txmac);
489 /* Set rx, tx burst functions */
490 dev->rx_pkt_burst = nfb_eth_ndp_rx;
491 dev->tx_pkt_burst = nfb_eth_ndp_tx;
493 /* Set function callbacks for Ethernet API */
497 nfb_eth_link_update(dev, 0);
499 /* Allocate space for one mac address */
500 data->mac_addrs = rte_zmalloc(data->name, sizeof(struct rte_ether_addr),
501 RTE_CACHE_LINE_SIZE);
502 if (data->mac_addrs == NULL) {
503 RTE_LOG(ERR, PMD, "Could not alloc space for MAC address!\n");
504 nfb_close(internals->nfb);
508 rte_eth_random_addr(eth_addr_init.addr_bytes);
509 eth_addr_init.addr_bytes[0] = eth_addr.addr_bytes[0];
510 eth_addr_init.addr_bytes[1] = eth_addr.addr_bytes[1];
511 eth_addr_init.addr_bytes[2] = eth_addr.addr_bytes[2];
513 nfb_eth_mac_addr_set(dev, ð_addr_init);
515 data->promiscuous = nfb_eth_promiscuous_get(dev);
516 data->all_multicast = nfb_eth_allmulticast_get(dev);
517 internals->rx_filter_original = data->promiscuous;
519 dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
521 RTE_LOG(INFO, PMD, "NFB device ("
522 PCI_PRI_FMT ") successfully initialized\n",
523 pci_addr->domain, pci_addr->bus, pci_addr->devid,
530 * DPDK callback to uninitialize an ethernet device
533 * Pointer to ethernet device structure
536 * 0 on success, a negative errno value otherwise.
539 nfb_eth_dev_uninit(struct rte_eth_dev *dev)
541 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
542 struct rte_pci_addr *pci_addr = &pci_dev->addr;
544 nfb_eth_dev_close(dev);
546 RTE_LOG(INFO, PMD, "NFB device ("
547 PCI_PRI_FMT ") successfully uninitialized\n",
548 pci_addr->domain, pci_addr->bus, pci_addr->devid,
554 static const struct rte_pci_id nfb_pci_id_table[] = {
555 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_40G2) },
556 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_100G2) },
557 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_200G2QL) },
558 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3) },
559 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3D) },
564 * DPDK callback to register a PCI device.
566 * This function spawns Ethernet devices out of a given PCI device.
569 * PCI driver structure (nfb_driver).
571 * PCI device information.
574 * 0 on success, a negative errno value otherwise.
577 nfb_eth_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
578 struct rte_pci_device *pci_dev)
580 return rte_eth_dev_pci_generic_probe(pci_dev,
581 sizeof(struct pmd_internals), nfb_eth_dev_init);
585 * DPDK callback to remove a PCI device.
587 * This function removes all Ethernet devices belong to a given PCI device.
590 * Pointer to the PCI device.
593 * 0 on success, the function cannot fail.
596 nfb_eth_pci_remove(struct rte_pci_device *pci_dev)
598 return rte_eth_dev_pci_generic_remove(pci_dev, nfb_eth_dev_uninit);
601 static struct rte_pci_driver nfb_eth_driver = {
602 .id_table = nfb_pci_id_table,
603 .probe = nfb_eth_pci_probe,
604 .remove = nfb_eth_pci_remove,
607 RTE_PMD_REGISTER_PCI(RTE_NFB_DRIVER_NAME, nfb_eth_driver);
608 RTE_PMD_REGISTER_PCI_TABLE(RTE_NFB_DRIVER_NAME, nfb_pci_id_table);
609 RTE_PMD_REGISTER_KMOD_DEP(RTE_NFB_DRIVER_NAME, "* nfb");
610 RTE_PMD_REGISTER_PARAM_STRING(RTE_NFB_DRIVER_NAME, TIMESTAMP_ARG "=<0|1>");