1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
6 #include <rte_ethdev.h>
7 #include <ethdev_driver.h>
9 #include <rte_bus_pci.h>
10 #include <rte_malloc.h>
11 #include <rte_memcpy.h>
12 #include <rte_memory.h>
15 #include "virtual_pmd.h"
17 #define MAX_PKT_BURST 512
19 static const char *virtual_ethdev_driver_name = "Virtual PMD";
21 struct virtual_ethdev_private {
22 struct eth_dev_ops dev_ops;
23 struct rte_eth_stats eth_stats;
25 struct rte_ring *rx_queue;
26 struct rte_ring *tx_queue;
28 int tx_burst_fail_count;
31 struct virtual_ethdev_queue {
37 virtual_ethdev_start_success(struct rte_eth_dev *eth_dev __rte_unused)
39 eth_dev->data->dev_started = 1;
45 virtual_ethdev_start_fail(struct rte_eth_dev *eth_dev __rte_unused)
47 eth_dev->data->dev_started = 0;
51 static int virtual_ethdev_stop(struct rte_eth_dev *eth_dev __rte_unused)
54 struct virtual_ethdev_private *prv = eth_dev->data->dev_private;
56 eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
57 eth_dev->data->dev_started = 0;
58 while (rte_ring_dequeue(prv->rx_queue, &pkt) != -ENOENT)
59 rte_pktmbuf_free(pkt);
61 while (rte_ring_dequeue(prv->tx_queue, &pkt) != -ENOENT)
62 rte_pktmbuf_free(pkt);
68 virtual_ethdev_close(struct rte_eth_dev *dev __rte_unused)
74 virtual_ethdev_configure_success(struct rte_eth_dev *dev __rte_unused)
80 virtual_ethdev_configure_fail(struct rte_eth_dev *dev __rte_unused)
86 virtual_ethdev_info_get(struct rte_eth_dev *dev __rte_unused,
87 struct rte_eth_dev_info *dev_info)
89 dev_info->driver_name = virtual_ethdev_driver_name;
90 dev_info->max_mac_addrs = 1;
92 dev_info->max_rx_pktlen = (uint32_t)2048;
94 dev_info->max_rx_queues = (uint16_t)128;
95 dev_info->max_tx_queues = (uint16_t)512;
97 dev_info->min_rx_bufsize = 0;
103 virtual_ethdev_rx_queue_setup_success(struct rte_eth_dev *dev,
104 uint16_t rx_queue_id, uint16_t nb_rx_desc __rte_unused,
105 unsigned int socket_id,
106 const struct rte_eth_rxconf *rx_conf __rte_unused,
107 struct rte_mempool *mb_pool __rte_unused)
109 struct virtual_ethdev_queue *rx_q;
111 rx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
112 sizeof(struct virtual_ethdev_queue), 0, socket_id);
117 rx_q->port_id = dev->data->port_id;
118 rx_q->queue_id = rx_queue_id;
120 dev->data->rx_queues[rx_queue_id] = rx_q;
126 virtual_ethdev_rx_queue_setup_fail(struct rte_eth_dev *dev __rte_unused,
127 uint16_t rx_queue_id __rte_unused, uint16_t nb_rx_desc __rte_unused,
128 unsigned int socket_id __rte_unused,
129 const struct rte_eth_rxconf *rx_conf __rte_unused,
130 struct rte_mempool *mb_pool __rte_unused)
136 virtual_ethdev_tx_queue_setup_success(struct rte_eth_dev *dev,
137 uint16_t tx_queue_id, uint16_t nb_tx_desc __rte_unused,
138 unsigned int socket_id,
139 const struct rte_eth_txconf *tx_conf __rte_unused)
141 struct virtual_ethdev_queue *tx_q;
143 tx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
144 sizeof(struct virtual_ethdev_queue), 0, socket_id);
149 tx_q->port_id = dev->data->port_id;
150 tx_q->queue_id = tx_queue_id;
152 dev->data->tx_queues[tx_queue_id] = tx_q;
158 virtual_ethdev_tx_queue_setup_fail(struct rte_eth_dev *dev __rte_unused,
159 uint16_t tx_queue_id __rte_unused, uint16_t nb_tx_desc __rte_unused,
160 unsigned int socket_id __rte_unused,
161 const struct rte_eth_txconf *tx_conf __rte_unused)
167 virtual_ethdev_rx_queue_release(void *q __rte_unused)
172 virtual_ethdev_tx_queue_release(void *q __rte_unused)
177 virtual_ethdev_link_update_success(struct rte_eth_dev *bonded_eth_dev,
178 int wait_to_complete __rte_unused)
180 if (!bonded_eth_dev->data->dev_started)
181 bonded_eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
187 virtual_ethdev_link_update_fail(struct rte_eth_dev *bonded_eth_dev __rte_unused,
188 int wait_to_complete __rte_unused)
194 virtual_ethdev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
196 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
199 rte_memcpy(stats, &dev_private->eth_stats, sizeof(*stats));
205 virtual_ethdev_stats_reset(struct rte_eth_dev *dev)
207 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
210 while (rte_ring_dequeue(dev_private->tx_queue, &pkt) == -ENOBUFS)
211 rte_pktmbuf_free(pkt);
213 /* Reset internal statistics */
214 memset(&dev_private->eth_stats, 0, sizeof(dev_private->eth_stats));
220 virtual_ethdev_promiscuous_mode_enable(struct rte_eth_dev *dev __rte_unused)
226 virtual_ethdev_promiscuous_mode_disable(struct rte_eth_dev *dev __rte_unused)
232 virtual_ethdev_mac_address_set(__rte_unused struct rte_eth_dev *dev,
233 __rte_unused struct rte_ether_addr *addr)
238 static const struct eth_dev_ops virtual_ethdev_default_dev_ops = {
239 .dev_configure = virtual_ethdev_configure_success,
240 .dev_start = virtual_ethdev_start_success,
241 .dev_stop = virtual_ethdev_stop,
242 .dev_close = virtual_ethdev_close,
243 .dev_infos_get = virtual_ethdev_info_get,
244 .rx_queue_setup = virtual_ethdev_rx_queue_setup_success,
245 .tx_queue_setup = virtual_ethdev_tx_queue_setup_success,
246 .rx_queue_release = virtual_ethdev_rx_queue_release,
247 .tx_queue_release = virtual_ethdev_tx_queue_release,
248 .link_update = virtual_ethdev_link_update_success,
249 .mac_addr_set = virtual_ethdev_mac_address_set,
250 .stats_get = virtual_ethdev_stats_get,
251 .stats_reset = virtual_ethdev_stats_reset,
252 .promiscuous_enable = virtual_ethdev_promiscuous_mode_enable,
253 .promiscuous_disable = virtual_ethdev_promiscuous_mode_disable
257 virtual_ethdev_start_fn_set_success(uint16_t port_id, uint8_t success)
259 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
260 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
261 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
264 dev_ops->dev_start = virtual_ethdev_start_success;
266 dev_ops->dev_start = virtual_ethdev_start_fail;
271 virtual_ethdev_configure_fn_set_success(uint16_t port_id, uint8_t success)
273 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
274 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
275 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
278 dev_ops->dev_configure = virtual_ethdev_configure_success;
280 dev_ops->dev_configure = virtual_ethdev_configure_fail;
284 virtual_ethdev_rx_queue_setup_fn_set_success(uint16_t port_id, uint8_t success)
286 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
287 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
288 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
291 dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_success;
293 dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_fail;
297 virtual_ethdev_tx_queue_setup_fn_set_success(uint16_t port_id, uint8_t success)
299 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
300 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
301 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
304 dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_success;
306 dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_fail;
310 virtual_ethdev_link_update_fn_set_success(uint16_t port_id, uint8_t success)
312 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
313 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
314 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
317 dev_ops->link_update = virtual_ethdev_link_update_success;
319 dev_ops->link_update = virtual_ethdev_link_update_fail;
324 virtual_ethdev_rx_burst_success(void *queue __rte_unused,
325 struct rte_mbuf **bufs,
328 struct rte_eth_dev *vrtl_eth_dev;
329 struct virtual_ethdev_queue *pq_map;
330 struct virtual_ethdev_private *dev_private;
334 pq_map = (struct virtual_ethdev_queue *)queue;
335 vrtl_eth_dev = &rte_eth_devices[pq_map->port_id];
336 dev_private = vrtl_eth_dev->data->dev_private;
338 rx_count = rte_ring_dequeue_burst(dev_private->rx_queue, (void **) bufs,
341 /* increments ipackets count */
342 dev_private->eth_stats.ipackets += rx_count;
344 /* increments ibytes count */
345 for (i = 0; i < rx_count; i++)
346 dev_private->eth_stats.ibytes += rte_pktmbuf_pkt_len(bufs[i]);
352 virtual_ethdev_rx_burst_fail(void *queue __rte_unused,
353 struct rte_mbuf **bufs __rte_unused,
354 uint16_t nb_pkts __rte_unused)
360 virtual_ethdev_tx_burst_success(void *queue, struct rte_mbuf **bufs,
363 struct virtual_ethdev_queue *tx_q = queue;
365 struct rte_eth_dev *vrtl_eth_dev;
366 struct virtual_ethdev_private *dev_private;
370 vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
371 dev_private = vrtl_eth_dev->data->dev_private;
373 if (!vrtl_eth_dev->data->dev_link.link_status)
376 nb_pkts = rte_ring_enqueue_burst(dev_private->tx_queue, (void **)bufs,
379 /* increment opacket count */
380 dev_private->eth_stats.opackets += nb_pkts;
382 /* increment obytes count */
383 for (i = 0; i < nb_pkts; i++)
384 dev_private->eth_stats.obytes += rte_pktmbuf_pkt_len(bufs[i]);
390 virtual_ethdev_tx_burst_fail(void *queue, struct rte_mbuf **bufs,
393 struct rte_eth_dev *vrtl_eth_dev = NULL;
394 struct virtual_ethdev_queue *tx_q = NULL;
395 struct virtual_ethdev_private *dev_private = NULL;
400 vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
401 dev_private = vrtl_eth_dev->data->dev_private;
403 if (dev_private->tx_burst_fail_count < nb_pkts) {
404 int successfully_txd = nb_pkts - dev_private->tx_burst_fail_count;
406 /* increment opacket count */
407 dev_private->eth_stats.opackets += successfully_txd;
409 /* free packets in burst */
410 for (i = 0; i < successfully_txd; i++) {
411 /* free packets in burst */
413 rte_pktmbuf_free(bufs[i]);
418 return successfully_txd;
426 virtual_ethdev_rx_burst_fn_set_success(uint16_t port_id, uint8_t success)
428 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
431 vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
433 vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_fail;
438 virtual_ethdev_tx_burst_fn_set_success(uint16_t port_id, uint8_t success)
440 struct virtual_ethdev_private *dev_private = NULL;
441 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
443 dev_private = vrtl_eth_dev->data->dev_private;
446 vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
448 vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_fail;
450 dev_private->tx_burst_fail_count = 0;
454 virtual_ethdev_tx_burst_fn_set_tx_pkt_fail_count(uint16_t port_id,
455 uint8_t packet_fail_count)
457 struct virtual_ethdev_private *dev_private = NULL;
458 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
461 dev_private = vrtl_eth_dev->data->dev_private;
462 dev_private->tx_burst_fail_count = packet_fail_count;
466 virtual_ethdev_set_link_status(uint16_t port_id, uint8_t link_status)
468 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
470 vrtl_eth_dev->data->dev_link.link_status = link_status;
474 virtual_ethdev_simulate_link_status_interrupt(uint16_t port_id,
477 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
479 vrtl_eth_dev->data->dev_link.link_status = link_status;
481 rte_eth_dev_callback_process(vrtl_eth_dev, RTE_ETH_EVENT_INTR_LSC,
486 virtual_ethdev_add_mbufs_to_rx_queue(uint16_t port_id,
487 struct rte_mbuf **pkt_burst, int burst_length)
489 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
490 struct virtual_ethdev_private *dev_private =
491 vrtl_eth_dev->data->dev_private;
493 return rte_ring_enqueue_burst(dev_private->rx_queue, (void **)pkt_burst,
498 virtual_ethdev_get_mbufs_from_tx_queue(uint16_t port_id,
499 struct rte_mbuf **pkt_burst, int burst_length)
501 struct virtual_ethdev_private *dev_private;
502 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
504 dev_private = vrtl_eth_dev->data->dev_private;
505 return rte_ring_dequeue_burst(dev_private->tx_queue, (void **)pkt_burst,
511 virtual_ethdev_create(const char *name, struct rte_ether_addr *mac_addr,
512 uint8_t socket_id, uint8_t isr_support)
514 struct rte_pci_device *pci_dev = NULL;
515 struct rte_eth_dev *eth_dev = NULL;
516 struct rte_pci_driver *pci_drv = NULL;
517 struct rte_pci_id *id_table = NULL;
518 struct virtual_ethdev_private *dev_private = NULL;
519 char name_buf[RTE_RING_NAMESIZE];
522 /* now do all data allocation - for eth_dev structure, dummy pci driver
523 * and internal (dev_private) data
526 pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, socket_id);
530 pci_drv = rte_zmalloc_socket(name, sizeof(*pci_drv), 0, socket_id);
534 id_table = rte_zmalloc_socket(name, sizeof(*id_table), 0, socket_id);
535 if (id_table == NULL)
537 id_table->device_id = 0xBEEF;
539 dev_private = rte_zmalloc_socket(name, sizeof(*dev_private), 0, socket_id);
540 if (dev_private == NULL)
543 snprintf(name_buf, sizeof(name_buf), "%s_rxQ", name);
544 dev_private->rx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
546 if (dev_private->rx_queue == NULL)
549 snprintf(name_buf, sizeof(name_buf), "%s_txQ", name);
550 dev_private->tx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
552 if (dev_private->tx_queue == NULL)
555 /* reserve an ethdev entry */
556 eth_dev = rte_eth_dev_allocate(name);
560 pci_dev->device.numa_node = socket_id;
561 pci_dev->device.name = eth_dev->data->name;
562 pci_drv->driver.name = virtual_ethdev_driver_name;
563 pci_drv->id_table = id_table;
566 pci_drv->drv_flags |= RTE_PCI_DRV_INTR_LSC;
568 pci_drv->drv_flags &= ~RTE_PCI_DRV_INTR_LSC;
571 eth_dev->device = &pci_dev->device;
572 eth_dev->device->driver = &pci_drv->driver;
574 eth_dev->data->nb_rx_queues = (uint16_t)1;
575 eth_dev->data->nb_tx_queues = (uint16_t)1;
577 eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
578 eth_dev->data->dev_link.link_speed = ETH_SPEED_NUM_10G;
579 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
581 eth_dev->data->mac_addrs = rte_zmalloc(name, RTE_ETHER_ADDR_LEN, 0);
582 if (eth_dev->data->mac_addrs == NULL)
585 memcpy(eth_dev->data->mac_addrs, mac_addr,
586 sizeof(*eth_dev->data->mac_addrs));
588 eth_dev->data->dev_started = 0;
589 eth_dev->data->promiscuous = 0;
590 eth_dev->data->scattered_rx = 0;
591 eth_dev->data->all_multicast = 0;
593 eth_dev->data->dev_private = dev_private;
595 /* Copy default device operation functions */
596 dev_private->dev_ops = virtual_ethdev_default_dev_ops;
597 eth_dev->dev_ops = &dev_private->dev_ops;
599 pci_dev->device.driver = &pci_drv->driver;
600 eth_dev->device = &pci_dev->device;
602 eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
603 eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
605 rte_eth_dev_probing_finish(eth_dev);
607 return eth_dev->data->port_id;
613 rte_free(dev_private);