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35 #include <rte_ethdev.h>
37 #include <rte_malloc.h>
38 #include <rte_memcpy.h>
39 #include <rte_memory.h>
42 #include "virtual_pmd.h"
44 #define MAX_PKT_BURST 512
46 static const char *virtual_ethdev_driver_name = "Virtual PMD";
48 struct virtual_ethdev_private {
49 struct eth_dev_ops dev_ops;
50 struct rte_eth_stats eth_stats;
52 struct rte_ring *rx_queue;
53 struct rte_ring *tx_queue;
55 int tx_burst_fail_count;
58 struct virtual_ethdev_queue {
64 virtual_ethdev_start_success(struct rte_eth_dev *eth_dev __rte_unused)
66 eth_dev->data->dev_started = 1;
72 virtual_ethdev_start_fail(struct rte_eth_dev *eth_dev __rte_unused)
74 eth_dev->data->dev_started = 0;
78 static void virtual_ethdev_stop(struct rte_eth_dev *eth_dev __rte_unused)
81 struct virtual_ethdev_private *prv = eth_dev->data->dev_private;
83 eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
84 eth_dev->data->dev_started = 0;
85 while (rte_ring_dequeue(prv->rx_queue, &pkt) != -ENOENT)
86 rte_pktmbuf_free(pkt);
88 while (rte_ring_dequeue(prv->tx_queue, &pkt) != -ENOENT)
89 rte_pktmbuf_free(pkt);
93 virtual_ethdev_close(struct rte_eth_dev *dev __rte_unused)
97 virtual_ethdev_configure_success(struct rte_eth_dev *dev __rte_unused)
103 virtual_ethdev_configure_fail(struct rte_eth_dev *dev __rte_unused)
109 virtual_ethdev_info_get(struct rte_eth_dev *dev __rte_unused,
110 struct rte_eth_dev_info *dev_info)
112 dev_info->driver_name = virtual_ethdev_driver_name;
113 dev_info->max_mac_addrs = 1;
115 dev_info->max_rx_pktlen = (uint32_t)2048;
117 dev_info->max_rx_queues = (uint16_t)128;
118 dev_info->max_tx_queues = (uint16_t)512;
120 dev_info->min_rx_bufsize = 0;
124 virtual_ethdev_rx_queue_setup_success(struct rte_eth_dev *dev,
125 uint16_t rx_queue_id, uint16_t nb_rx_desc __rte_unused,
126 unsigned int socket_id,
127 const struct rte_eth_rxconf *rx_conf __rte_unused,
128 struct rte_mempool *mb_pool __rte_unused)
130 struct virtual_ethdev_queue *rx_q;
132 rx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
133 sizeof(struct virtual_ethdev_queue), 0, socket_id);
138 rx_q->port_id = dev->data->port_id;
139 rx_q->queue_id = rx_queue_id;
141 dev->data->rx_queues[rx_queue_id] = rx_q;
147 virtual_ethdev_rx_queue_setup_fail(struct rte_eth_dev *dev __rte_unused,
148 uint16_t rx_queue_id __rte_unused, uint16_t nb_rx_desc __rte_unused,
149 unsigned int socket_id __rte_unused,
150 const struct rte_eth_rxconf *rx_conf __rte_unused,
151 struct rte_mempool *mb_pool __rte_unused)
157 virtual_ethdev_tx_queue_setup_success(struct rte_eth_dev *dev,
158 uint16_t tx_queue_id, uint16_t nb_tx_desc __rte_unused,
159 unsigned int socket_id,
160 const struct rte_eth_txconf *tx_conf __rte_unused)
162 struct virtual_ethdev_queue *tx_q;
164 tx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
165 sizeof(struct virtual_ethdev_queue), 0, socket_id);
170 tx_q->port_id = dev->data->port_id;
171 tx_q->queue_id = tx_queue_id;
173 dev->data->tx_queues[tx_queue_id] = tx_q;
179 virtual_ethdev_tx_queue_setup_fail(struct rte_eth_dev *dev __rte_unused,
180 uint16_t tx_queue_id __rte_unused, uint16_t nb_tx_desc __rte_unused,
181 unsigned int socket_id __rte_unused,
182 const struct rte_eth_txconf *tx_conf __rte_unused)
188 virtual_ethdev_rx_queue_release(void *q __rte_unused)
193 virtual_ethdev_tx_queue_release(void *q __rte_unused)
198 virtual_ethdev_link_update_success(struct rte_eth_dev *bonded_eth_dev,
199 int wait_to_complete __rte_unused)
201 if (!bonded_eth_dev->data->dev_started)
202 bonded_eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
208 virtual_ethdev_link_update_fail(struct rte_eth_dev *bonded_eth_dev __rte_unused,
209 int wait_to_complete __rte_unused)
215 virtual_ethdev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
217 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
220 rte_memcpy(stats, &dev_private->eth_stats, sizeof(*stats));
226 virtual_ethdev_stats_reset(struct rte_eth_dev *dev)
228 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
231 while (rte_ring_dequeue(dev_private->tx_queue, &pkt) == -ENOBUFS)
232 rte_pktmbuf_free(pkt);
234 /* Reset internal statistics */
235 memset(&dev_private->eth_stats, 0, sizeof(dev_private->eth_stats));
239 virtual_ethdev_promiscuous_mode_enable(struct rte_eth_dev *dev __rte_unused)
243 virtual_ethdev_promiscuous_mode_disable(struct rte_eth_dev *dev __rte_unused)
247 static const struct eth_dev_ops virtual_ethdev_default_dev_ops = {
248 .dev_configure = virtual_ethdev_configure_success,
249 .dev_start = virtual_ethdev_start_success,
250 .dev_stop = virtual_ethdev_stop,
251 .dev_close = virtual_ethdev_close,
252 .dev_infos_get = virtual_ethdev_info_get,
253 .rx_queue_setup = virtual_ethdev_rx_queue_setup_success,
254 .tx_queue_setup = virtual_ethdev_tx_queue_setup_success,
255 .rx_queue_release = virtual_ethdev_rx_queue_release,
256 .tx_queue_release = virtual_ethdev_tx_queue_release,
257 .link_update = virtual_ethdev_link_update_success,
258 .stats_get = virtual_ethdev_stats_get,
259 .stats_reset = virtual_ethdev_stats_reset,
260 .promiscuous_enable = virtual_ethdev_promiscuous_mode_enable,
261 .promiscuous_disable = virtual_ethdev_promiscuous_mode_disable
266 virtual_ethdev_start_fn_set_success(uint16_t port_id, uint8_t success)
268 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
269 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
270 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
273 dev_ops->dev_start = virtual_ethdev_start_success;
275 dev_ops->dev_start = virtual_ethdev_start_fail;
280 virtual_ethdev_configure_fn_set_success(uint16_t port_id, uint8_t success)
282 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
283 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
284 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
287 dev_ops->dev_configure = virtual_ethdev_configure_success;
289 dev_ops->dev_configure = virtual_ethdev_configure_fail;
293 virtual_ethdev_rx_queue_setup_fn_set_success(uint16_t port_id, uint8_t success)
295 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
296 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
297 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
300 dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_success;
302 dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_fail;
306 virtual_ethdev_tx_queue_setup_fn_set_success(uint16_t port_id, uint8_t success)
308 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
309 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
310 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
313 dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_success;
315 dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_fail;
319 virtual_ethdev_link_update_fn_set_success(uint16_t port_id, uint8_t success)
321 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
322 struct virtual_ethdev_private *dev_private = dev->data->dev_private;
323 struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
326 dev_ops->link_update = virtual_ethdev_link_update_success;
328 dev_ops->link_update = virtual_ethdev_link_update_fail;
333 virtual_ethdev_rx_burst_success(void *queue __rte_unused,
334 struct rte_mbuf **bufs,
337 struct rte_eth_dev *vrtl_eth_dev;
338 struct virtual_ethdev_queue *pq_map;
339 struct virtual_ethdev_private *dev_private;
343 pq_map = (struct virtual_ethdev_queue *)queue;
344 vrtl_eth_dev = &rte_eth_devices[pq_map->port_id];
345 dev_private = vrtl_eth_dev->data->dev_private;
347 rx_count = rte_ring_dequeue_burst(dev_private->rx_queue, (void **) bufs,
350 /* increments ipackets count */
351 dev_private->eth_stats.ipackets += rx_count;
353 /* increments ibytes count */
354 for (i = 0; i < rx_count; i++)
355 dev_private->eth_stats.ibytes += rte_pktmbuf_pkt_len(bufs[i]);
361 virtual_ethdev_rx_burst_fail(void *queue __rte_unused,
362 struct rte_mbuf **bufs __rte_unused,
363 uint16_t nb_pkts __rte_unused)
369 virtual_ethdev_tx_burst_success(void *queue, struct rte_mbuf **bufs,
372 struct virtual_ethdev_queue *tx_q = queue;
374 struct rte_eth_dev *vrtl_eth_dev;
375 struct virtual_ethdev_private *dev_private;
379 vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
380 dev_private = vrtl_eth_dev->data->dev_private;
382 if (!vrtl_eth_dev->data->dev_link.link_status)
385 nb_pkts = rte_ring_enqueue_burst(dev_private->tx_queue, (void **)bufs,
388 /* increment opacket count */
389 dev_private->eth_stats.opackets += nb_pkts;
391 /* increment obytes count */
392 for (i = 0; i < nb_pkts; i++)
393 dev_private->eth_stats.obytes += rte_pktmbuf_pkt_len(bufs[i]);
399 virtual_ethdev_tx_burst_fail(void *queue, struct rte_mbuf **bufs,
402 struct rte_eth_dev *vrtl_eth_dev = NULL;
403 struct virtual_ethdev_queue *tx_q = NULL;
404 struct virtual_ethdev_private *dev_private = NULL;
409 vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
410 dev_private = vrtl_eth_dev->data->dev_private;
412 if (dev_private->tx_burst_fail_count < nb_pkts) {
413 int successfully_txd = nb_pkts - dev_private->tx_burst_fail_count;
415 /* increment opacket count */
416 dev_private->eth_stats.opackets += successfully_txd;
418 /* free packets in burst */
419 for (i = 0; i < successfully_txd; i++) {
420 /* free packets in burst */
422 rte_pktmbuf_free(bufs[i]);
427 return successfully_txd;
435 virtual_ethdev_rx_burst_fn_set_success(uint16_t port_id, uint8_t success)
437 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
440 vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
442 vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_fail;
447 virtual_ethdev_tx_burst_fn_set_success(uint16_t port_id, uint8_t success)
449 struct virtual_ethdev_private *dev_private = NULL;
450 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
452 dev_private = vrtl_eth_dev->data->dev_private;
455 vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
457 vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_fail;
459 dev_private->tx_burst_fail_count = 0;
463 virtual_ethdev_tx_burst_fn_set_tx_pkt_fail_count(uint16_t port_id,
464 uint8_t packet_fail_count)
466 struct virtual_ethdev_private *dev_private = NULL;
467 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
470 dev_private = vrtl_eth_dev->data->dev_private;
471 dev_private->tx_burst_fail_count = packet_fail_count;
475 virtual_ethdev_set_link_status(uint16_t port_id, uint8_t link_status)
477 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
479 vrtl_eth_dev->data->dev_link.link_status = link_status;
483 virtual_ethdev_simulate_link_status_interrupt(uint16_t port_id,
486 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
488 vrtl_eth_dev->data->dev_link.link_status = link_status;
490 _rte_eth_dev_callback_process(vrtl_eth_dev, RTE_ETH_EVENT_INTR_LSC,
495 virtual_ethdev_add_mbufs_to_rx_queue(uint16_t port_id,
496 struct rte_mbuf **pkt_burst, int burst_length)
498 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
499 struct virtual_ethdev_private *dev_private =
500 vrtl_eth_dev->data->dev_private;
502 return rte_ring_enqueue_burst(dev_private->rx_queue, (void **)pkt_burst,
507 virtual_ethdev_get_mbufs_from_tx_queue(uint16_t port_id,
508 struct rte_mbuf **pkt_burst, int burst_length)
510 struct virtual_ethdev_private *dev_private;
511 struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
513 dev_private = vrtl_eth_dev->data->dev_private;
514 return rte_ring_dequeue_burst(dev_private->tx_queue, (void **)pkt_burst,
520 virtual_ethdev_create(const char *name, struct ether_addr *mac_addr,
521 uint8_t socket_id, uint8_t isr_support)
523 struct rte_pci_device *pci_dev = NULL;
524 struct rte_eth_dev *eth_dev = NULL;
525 struct rte_pci_driver *pci_drv = NULL;
526 struct rte_pci_id *id_table = NULL;
527 struct virtual_ethdev_private *dev_private = NULL;
528 char name_buf[RTE_RING_NAMESIZE];
531 /* now do all data allocation - for eth_dev structure, dummy pci driver
532 * and internal (dev_private) data
535 pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, socket_id);
539 pci_drv = rte_zmalloc_socket(name, sizeof(*pci_drv), 0, socket_id);
543 id_table = rte_zmalloc_socket(name, sizeof(*id_table), 0, socket_id);
544 if (id_table == NULL)
546 id_table->device_id = 0xBEEF;
548 dev_private = rte_zmalloc_socket(name, sizeof(*dev_private), 0, socket_id);
549 if (dev_private == NULL)
552 snprintf(name_buf, sizeof(name_buf), "%s_rxQ", name);
553 dev_private->rx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
555 if (dev_private->rx_queue == NULL)
558 snprintf(name_buf, sizeof(name_buf), "%s_txQ", name);
559 dev_private->tx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
561 if (dev_private->tx_queue == NULL)
564 /* reserve an ethdev entry */
565 eth_dev = rte_eth_dev_allocate(name);
569 pci_dev->device.numa_node = socket_id;
570 pci_dev->device.name = eth_dev->data->name;
571 pci_drv->driver.name = virtual_ethdev_driver_name;
572 pci_drv->id_table = id_table;
575 pci_drv->drv_flags |= RTE_PCI_DRV_INTR_LSC;
577 pci_drv->drv_flags &= ~RTE_PCI_DRV_INTR_LSC;
580 eth_dev->device = &pci_dev->device;
581 eth_dev->device->driver = &pci_drv->driver;
583 eth_dev->data->nb_rx_queues = (uint16_t)1;
584 eth_dev->data->nb_tx_queues = (uint16_t)1;
586 eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
587 eth_dev->data->dev_link.link_speed = ETH_SPEED_NUM_10G;
588 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
590 eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
591 if (eth_dev->data->mac_addrs == NULL)
594 memcpy(eth_dev->data->mac_addrs, mac_addr,
595 sizeof(*eth_dev->data->mac_addrs));
597 eth_dev->data->dev_started = 0;
598 eth_dev->data->promiscuous = 0;
599 eth_dev->data->scattered_rx = 0;
600 eth_dev->data->all_multicast = 0;
602 eth_dev->data->dev_private = dev_private;
604 /* Copy default device operation functions */
605 dev_private->dev_ops = virtual_ethdev_default_dev_ops;
606 eth_dev->dev_ops = &dev_private->dev_ops;
608 pci_dev->device.driver = &pci_drv->driver;
609 eth_dev->device = &pci_dev->device;
611 eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
612 eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
614 return eth_dev->data->port_id;
620 rte_free(dev_private);