i40e: fix crash on DCB query
[dpdk.git] / app / test / virtual_pmd.c
1 /*-
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32  */
33
34 #include <rte_mbuf.h>
35 #include <rte_ethdev.h>
36 #include <rte_malloc.h>
37 #include <rte_memcpy.h>
38 #include <rte_memory.h>
39 #include <rte_ring.h>
40
41 #include "virtual_pmd.h"
42
43 #define MAX_PKT_BURST 512
44
45 static const char *virtual_ethdev_driver_name = "Virtual PMD";
46
47 struct virtual_ethdev_private {
48         struct eth_dev_ops dev_ops;
49         struct rte_eth_stats eth_stats;
50
51         struct rte_ring *rx_queue;
52         struct rte_ring *tx_queue;
53
54         int tx_burst_fail_count;
55 };
56
57 struct virtual_ethdev_queue {
58         int port_id;
59         int queue_id;
60 };
61
62 static int
63 virtual_ethdev_start_success(struct rte_eth_dev *eth_dev __rte_unused)
64 {
65         eth_dev->data->dev_started = 1;
66
67         return 0;
68 }
69
70 static int
71 virtual_ethdev_start_fail(struct rte_eth_dev *eth_dev __rte_unused)
72 {
73         eth_dev->data->dev_started = 0;
74
75         return -1;
76 }
77 static void  virtual_ethdev_stop(struct rte_eth_dev *eth_dev __rte_unused)
78 {
79         void *pkt = NULL;
80         struct virtual_ethdev_private *prv = eth_dev->data->dev_private;
81
82         eth_dev->data->dev_link.link_status = 0;
83         eth_dev->data->dev_started = 0;
84         while (rte_ring_dequeue(prv->rx_queue, &pkt) != -ENOENT)
85                 rte_pktmbuf_free(pkt);
86
87         while (rte_ring_dequeue(prv->tx_queue, &pkt) != -ENOENT)
88                 rte_pktmbuf_free(pkt);
89 }
90
91 static void
92 virtual_ethdev_close(struct rte_eth_dev *dev __rte_unused)
93 {}
94
95 static int
96 virtual_ethdev_configure_success(struct rte_eth_dev *dev __rte_unused)
97 {
98         return 0;
99 }
100
101 static int
102 virtual_ethdev_configure_fail(struct rte_eth_dev *dev __rte_unused)
103 {
104         return -1;
105 }
106
107 static void
108 virtual_ethdev_info_get(struct rte_eth_dev *dev __rte_unused,
109                 struct rte_eth_dev_info *dev_info)
110 {
111         dev_info->driver_name = virtual_ethdev_driver_name;
112         dev_info->max_mac_addrs = 1;
113
114         dev_info->max_rx_pktlen = (uint32_t)2048;
115
116         dev_info->max_rx_queues = (uint16_t)128;
117         dev_info->max_tx_queues = (uint16_t)512;
118
119         dev_info->min_rx_bufsize = 0;
120         dev_info->pci_dev = NULL;
121 }
122
123 static int
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)
129 {
130         struct virtual_ethdev_queue *rx_q;
131
132         rx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
133                         sizeof(struct virtual_ethdev_queue), 0, socket_id);
134
135         if (rx_q == NULL)
136                 return -1;
137
138         rx_q->port_id = dev->data->port_id;
139         rx_q->queue_id = rx_queue_id;
140
141         dev->data->rx_queues[rx_queue_id] = rx_q;
142
143         return 0;
144 }
145
146 static int
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)
152 {
153         return -1;
154 }
155
156 static int
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)
161 {
162         struct virtual_ethdev_queue *tx_q;
163
164         tx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
165                         sizeof(struct virtual_ethdev_queue), 0, socket_id);
166
167         if (tx_q == NULL)
168                 return -1;
169
170         tx_q->port_id = dev->data->port_id;
171         tx_q->queue_id = tx_queue_id;
172
173         dev->data->tx_queues[tx_queue_id] = tx_q;
174
175         return 0;
176 }
177
178 static int
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)
183 {
184         return -1;
185 }
186
187 static void
188 virtual_ethdev_rx_queue_release(void *q __rte_unused)
189 {
190 }
191
192 static void
193 virtual_ethdev_tx_queue_release(void *q __rte_unused)
194 {
195 }
196
197 static int
198 virtual_ethdev_link_update_success(struct rte_eth_dev *bonded_eth_dev,
199                 int wait_to_complete __rte_unused)
200 {
201         if (!bonded_eth_dev->data->dev_started)
202                 bonded_eth_dev->data->dev_link.link_status = 0;
203
204         return 0;
205 }
206
207 static int
208 virtual_ethdev_link_update_fail(struct rte_eth_dev *bonded_eth_dev __rte_unused,
209                 int wait_to_complete __rte_unused)
210 {
211         return -1;
212 }
213
214 static void
215 virtual_ethdev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
216 {
217         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
218
219         if (stats)
220                 rte_memcpy(stats, &dev_private->eth_stats, sizeof(*stats));
221 }
222
223 static void
224 virtual_ethdev_stats_reset(struct rte_eth_dev *dev)
225 {
226         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
227         void *pkt = NULL;
228
229         while (rte_ring_dequeue(dev_private->tx_queue, &pkt) == -ENOBUFS)
230                         rte_pktmbuf_free(pkt);
231
232         /* Reset internal statistics */
233         memset(&dev_private->eth_stats, 0, sizeof(dev_private->eth_stats));
234 }
235
236 static void
237 virtual_ethdev_promiscuous_mode_enable(struct rte_eth_dev *dev __rte_unused)
238 {}
239
240 static void
241 virtual_ethdev_promiscuous_mode_disable(struct rte_eth_dev *dev __rte_unused)
242 {}
243
244
245 static const struct eth_dev_ops virtual_ethdev_default_dev_ops = {
246         .dev_configure = virtual_ethdev_configure_success,
247         .dev_start = virtual_ethdev_start_success,
248         .dev_stop = virtual_ethdev_stop,
249         .dev_close = virtual_ethdev_close,
250         .dev_infos_get = virtual_ethdev_info_get,
251         .rx_queue_setup = virtual_ethdev_rx_queue_setup_success,
252         .tx_queue_setup = virtual_ethdev_tx_queue_setup_success,
253         .rx_queue_release = virtual_ethdev_rx_queue_release,
254         .tx_queue_release = virtual_ethdev_tx_queue_release,
255         .link_update = virtual_ethdev_link_update_success,
256         .stats_get = virtual_ethdev_stats_get,
257         .stats_reset = virtual_ethdev_stats_reset,
258         .promiscuous_enable = virtual_ethdev_promiscuous_mode_enable,
259         .promiscuous_disable = virtual_ethdev_promiscuous_mode_disable
260 };
261
262
263 void
264 virtual_ethdev_start_fn_set_success(uint8_t port_id, uint8_t success)
265 {
266         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
267         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
268         struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
269
270         if (success)
271                 dev_ops->dev_start = virtual_ethdev_start_success;
272         else
273                 dev_ops->dev_start = virtual_ethdev_start_fail;
274
275 }
276
277 void
278 virtual_ethdev_configure_fn_set_success(uint8_t port_id, uint8_t success)
279 {
280         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
281         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
282         struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
283
284         if (success)
285                 dev_ops->dev_configure = virtual_ethdev_configure_success;
286         else
287                 dev_ops->dev_configure = virtual_ethdev_configure_fail;
288 }
289
290 void
291 virtual_ethdev_rx_queue_setup_fn_set_success(uint8_t port_id, uint8_t success)
292 {
293         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
294         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
295         struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
296
297         if (success)
298                 dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_success;
299         else
300                 dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_fail;
301 }
302
303 void
304 virtual_ethdev_tx_queue_setup_fn_set_success(uint8_t port_id, uint8_t success)
305 {
306         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
307         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
308         struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
309
310         if (success)
311                 dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_success;
312         else
313                 dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_fail;
314 }
315
316 void
317 virtual_ethdev_link_update_fn_set_success(uint8_t port_id, uint8_t success)
318 {
319         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
320         struct virtual_ethdev_private *dev_private = dev->data->dev_private;
321         struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
322
323         if (success)
324                 dev_ops->link_update = virtual_ethdev_link_update_success;
325         else
326                 dev_ops->link_update = virtual_ethdev_link_update_fail;
327 }
328
329
330 static uint16_t
331 virtual_ethdev_rx_burst_success(void *queue __rte_unused,
332                                                          struct rte_mbuf **bufs,
333                                                          uint16_t nb_pkts)
334 {
335         struct rte_eth_dev *vrtl_eth_dev;
336         struct virtual_ethdev_queue *pq_map;
337         struct virtual_ethdev_private *dev_private;
338
339         int rx_count, i;
340
341         pq_map = (struct virtual_ethdev_queue *)queue;
342         vrtl_eth_dev = &rte_eth_devices[pq_map->port_id];
343         dev_private = vrtl_eth_dev->data->dev_private;
344
345         rx_count = rte_ring_dequeue_burst(dev_private->rx_queue, (void **) bufs,
346                         nb_pkts);
347
348         /* increments ipackets count */
349         dev_private->eth_stats.ipackets += rx_count;
350
351         /* increments ibytes count */
352         for (i = 0; i < rx_count; i++)
353                 dev_private->eth_stats.ibytes += rte_pktmbuf_pkt_len(bufs[i]);
354
355         return rx_count;
356 }
357
358 static uint16_t
359 virtual_ethdev_rx_burst_fail(void *queue __rte_unused,
360                                                          struct rte_mbuf **bufs __rte_unused,
361                                                          uint16_t nb_pkts __rte_unused)
362 {
363         return 0;
364 }
365
366 static uint16_t
367 virtual_ethdev_tx_burst_success(void *queue, struct rte_mbuf **bufs,
368                 uint16_t nb_pkts)
369 {
370         struct virtual_ethdev_queue *tx_q = (struct virtual_ethdev_queue *)queue;
371
372         struct rte_eth_dev *vrtl_eth_dev;
373         struct virtual_ethdev_private *dev_private;
374
375         int i;
376
377         vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
378         dev_private = vrtl_eth_dev->data->dev_private;
379
380         if (!vrtl_eth_dev->data->dev_link.link_status)
381                 nb_pkts = 0;
382         else
383                 nb_pkts = rte_ring_enqueue_burst(dev_private->tx_queue, (void **)bufs,
384                                 nb_pkts);
385
386         /* increment opacket count */
387         dev_private->eth_stats.opackets += nb_pkts;
388
389         /* increment obytes count */
390         for (i = 0; i < nb_pkts; i++)
391                 dev_private->eth_stats.obytes += rte_pktmbuf_pkt_len(bufs[i]);
392
393         return nb_pkts;
394 }
395
396 static uint16_t
397 virtual_ethdev_tx_burst_fail(void *queue, struct rte_mbuf **bufs,
398                 uint16_t nb_pkts)
399 {
400         struct rte_eth_dev *vrtl_eth_dev = NULL;
401         struct virtual_ethdev_queue *tx_q = NULL;
402         struct virtual_ethdev_private *dev_private = NULL;
403
404         int i;
405
406         tx_q = (struct virtual_ethdev_queue *)queue;
407         vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
408         dev_private = vrtl_eth_dev->data->dev_private;
409
410         if (dev_private->tx_burst_fail_count < nb_pkts) {
411                 int successfully_txd = nb_pkts - dev_private->tx_burst_fail_count;
412
413                 /* increment opacket count */
414                 dev_private->eth_stats.opackets += successfully_txd;
415
416                 /* free packets in burst */
417                 for (i = 0; i < successfully_txd; i++) {
418                         /* free packets in burst */
419                         if (bufs[i] != NULL)
420                                 rte_pktmbuf_free(bufs[i]);
421
422                         bufs[i] = NULL;
423                 }
424
425                 return successfully_txd;
426         }
427
428         return 0;
429 }
430
431
432 void
433 virtual_ethdev_rx_burst_fn_set_success(uint8_t port_id, uint8_t success)
434 {
435         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
436
437         if (success)
438                 vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
439         else
440                 vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_fail;
441 }
442
443
444 void
445 virtual_ethdev_tx_burst_fn_set_success(uint8_t port_id, uint8_t success)
446 {
447         struct virtual_ethdev_private *dev_private = NULL;
448         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
449
450         dev_private = vrtl_eth_dev->data->dev_private;
451
452         if (success)
453                 vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
454         else
455                 vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_fail;
456
457         dev_private->tx_burst_fail_count = 0;
458 }
459
460 void
461 virtual_ethdev_tx_burst_fn_set_tx_pkt_fail_count(uint8_t port_id,
462                 uint8_t packet_fail_count)
463 {
464         struct virtual_ethdev_private *dev_private = NULL;
465         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
466
467
468         dev_private = vrtl_eth_dev->data->dev_private;
469         dev_private->tx_burst_fail_count = packet_fail_count;
470 }
471
472 void
473 virtual_ethdev_set_link_status(uint8_t port_id, uint8_t link_status)
474 {
475         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
476
477         vrtl_eth_dev->data->dev_link.link_status = link_status;
478 }
479
480 void
481 virtual_ethdev_simulate_link_status_interrupt(uint8_t port_id,
482                 uint8_t link_status)
483 {
484         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
485
486         vrtl_eth_dev->data->dev_link.link_status = link_status;
487
488         _rte_eth_dev_callback_process(vrtl_eth_dev, RTE_ETH_EVENT_INTR_LSC);
489 }
490
491 int
492 virtual_ethdev_add_mbufs_to_rx_queue(uint8_t port_id,
493                 struct rte_mbuf **pkt_burst, int burst_length)
494 {
495         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
496         struct virtual_ethdev_private *dev_private =
497                         vrtl_eth_dev->data->dev_private;
498
499         return rte_ring_enqueue_burst(dev_private->rx_queue, (void **)pkt_burst,
500                         burst_length);
501 }
502
503 int
504 virtual_ethdev_get_mbufs_from_tx_queue(uint8_t port_id,
505                 struct rte_mbuf **pkt_burst, int burst_length)
506 {
507         struct virtual_ethdev_private *dev_private;
508         struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
509
510         dev_private = vrtl_eth_dev->data->dev_private;
511         return rte_ring_dequeue_burst(dev_private->tx_queue, (void **)pkt_burst,
512                 burst_length);
513 }
514
515 static uint8_t
516 get_number_of_sockets(void)
517 {
518         int sockets = 0;
519         int i;
520         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
521
522         for (i = 0; i < RTE_MAX_MEMSEG && ms[i].addr != NULL; i++) {
523                 if (sockets < ms[i].socket_id)
524                         sockets = ms[i].socket_id;
525         }
526         /* Number of sockets = maximum socket_id + 1 */
527         return ++sockets;
528 }
529
530 int
531 virtual_ethdev_create(const char *name, struct ether_addr *mac_addr,
532                 uint8_t socket_id, uint8_t isr_support)
533 {
534         struct rte_pci_device *pci_dev = NULL;
535         struct rte_eth_dev *eth_dev = NULL;
536         struct eth_driver *eth_drv = NULL;
537         struct rte_pci_driver *pci_drv = NULL;
538         struct rte_pci_id *id_table = NULL;
539         struct virtual_ethdev_private *dev_private = NULL;
540         char name_buf[RTE_RING_NAMESIZE];
541
542
543         /* now do all data allocation - for eth_dev structure, dummy pci driver
544          * and internal (dev_private) data
545          */
546
547         if (socket_id >= get_number_of_sockets())
548                 goto err;
549
550         pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, socket_id);
551         if (pci_dev == NULL)
552                 goto err;
553
554         eth_drv = rte_zmalloc_socket(name, sizeof(*eth_drv), 0, socket_id);
555         if (eth_drv == NULL)
556                 goto err;
557
558         pci_drv = rte_zmalloc_socket(name, sizeof(*pci_drv), 0, socket_id);
559         if (pci_drv == NULL)
560                 goto err;
561
562         id_table = rte_zmalloc_socket(name, sizeof(*id_table), 0, socket_id);
563         if (id_table == NULL)
564                 goto err;
565         id_table->device_id = 0xBEEF;
566
567         dev_private = rte_zmalloc_socket(name, sizeof(*dev_private), 0, socket_id);
568         if (dev_private == NULL)
569                 goto err;
570
571         snprintf(name_buf, sizeof(name_buf), "%s_rxQ", name);
572         dev_private->rx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
573                         0);
574         if (dev_private->rx_queue == NULL)
575                 goto err;
576
577         snprintf(name_buf, sizeof(name_buf), "%s_txQ", name);
578         dev_private->tx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
579                         0);
580         if (dev_private->tx_queue == NULL)
581                 goto err;
582
583         /* reserve an ethdev entry */
584         eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
585         if (eth_dev == NULL)
586                 goto err;
587
588         pci_dev->numa_node = socket_id;
589         pci_drv->name = virtual_ethdev_driver_name;
590         pci_drv->id_table = id_table;
591
592         if (isr_support)
593                 pci_drv->drv_flags |= RTE_PCI_DRV_INTR_LSC;
594         else
595                 pci_drv->drv_flags &= ~RTE_PCI_DRV_INTR_LSC;
596
597
598         eth_drv->pci_drv = (struct rte_pci_driver)(*pci_drv);
599         eth_dev->driver = eth_drv;
600
601         eth_dev->data->nb_rx_queues = (uint16_t)1;
602         eth_dev->data->nb_tx_queues = (uint16_t)1;
603
604         TAILQ_INIT(&(eth_dev->link_intr_cbs));
605
606         eth_dev->data->dev_link.link_status = 0;
607         eth_dev->data->dev_link.link_speed = ETH_LINK_SPEED_10000;
608         eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
609
610         eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
611         if (eth_dev->data->mac_addrs == NULL)
612                 goto err;
613
614         memcpy(eth_dev->data->mac_addrs, mac_addr,
615                         sizeof(*eth_dev->data->mac_addrs));
616
617         eth_dev->data->dev_started = 0;
618         eth_dev->data->promiscuous = 0;
619         eth_dev->data->scattered_rx = 0;
620         eth_dev->data->all_multicast = 0;
621
622         eth_dev->data->dev_private = dev_private;
623
624         /* Copy default device operation functions */
625         dev_private->dev_ops = virtual_ethdev_default_dev_ops;
626         eth_dev->dev_ops = &dev_private->dev_ops;
627
628         eth_dev->pci_dev = pci_dev;
629         eth_dev->pci_dev->driver = &eth_drv->pci_drv;
630
631         eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
632         eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
633
634         return eth_dev->data->port_id;
635
636 err:
637         rte_free(pci_dev);
638         rte_free(pci_drv);
639         rte_free(eth_drv);
640         rte_free(id_table);
641         rte_free(dev_private);
642
643         return -1;
644 }