xref: /dpdk/drivers/net/softnic/rte_eth_softnic.c (revision 68a03efeed657e6e05f281479b33b51102797e15)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2017 Intel Corporation
3  */
4 
5 #include <stdint.h>
6 #include <stdlib.h>
7 #include <string.h>
8 
9 #include <ethdev_driver.h>
10 #include <ethdev_vdev.h>
11 #include <rte_malloc.h>
12 #include <rte_bus_vdev.h>
13 #include <rte_kvargs.h>
14 #include <rte_errno.h>
15 #include <rte_ring.h>
16 #include <rte_tm_driver.h>
17 #include <rte_mtr_driver.h>
18 
19 #include "rte_eth_softnic.h"
20 #include "rte_eth_softnic_internals.h"
21 
22 #define PMD_PARAM_FIRMWARE                                 "firmware"
23 #define PMD_PARAM_CONN_PORT                                "conn_port"
24 #define PMD_PARAM_CPU_ID                                   "cpu_id"
25 #define PMD_PARAM_SC                                       "sc"
26 #define PMD_PARAM_TM_N_QUEUES                              "tm_n_queues"
27 #define PMD_PARAM_TM_QSIZE0                                "tm_qsize0"
28 #define PMD_PARAM_TM_QSIZE1                                "tm_qsize1"
29 #define PMD_PARAM_TM_QSIZE2                                "tm_qsize2"
30 #define PMD_PARAM_TM_QSIZE3                                "tm_qsize3"
31 #define PMD_PARAM_TM_QSIZE4                                "tm_qsize4"
32 #define PMD_PARAM_TM_QSIZE5                                "tm_qsize5"
33 #define PMD_PARAM_TM_QSIZE6                                "tm_qsize6"
34 #define PMD_PARAM_TM_QSIZE7                                "tm_qsize7"
35 #define PMD_PARAM_TM_QSIZE8                                "tm_qsize8"
36 #define PMD_PARAM_TM_QSIZE9                                "tm_qsize9"
37 #define PMD_PARAM_TM_QSIZE10                               "tm_qsize10"
38 #define PMD_PARAM_TM_QSIZE11                               "tm_qsize11"
39 #define PMD_PARAM_TM_QSIZE12                               "tm_qsize12"
40 
41 
42 static const char * const pmd_valid_args[] = {
43 	PMD_PARAM_FIRMWARE,
44 	PMD_PARAM_CONN_PORT,
45 	PMD_PARAM_CPU_ID,
46 	PMD_PARAM_SC,
47 	PMD_PARAM_TM_N_QUEUES,
48 	PMD_PARAM_TM_QSIZE0,
49 	PMD_PARAM_TM_QSIZE1,
50 	PMD_PARAM_TM_QSIZE2,
51 	PMD_PARAM_TM_QSIZE3,
52 	PMD_PARAM_TM_QSIZE4,
53 	PMD_PARAM_TM_QSIZE5,
54 	PMD_PARAM_TM_QSIZE6,
55 	PMD_PARAM_TM_QSIZE7,
56 	PMD_PARAM_TM_QSIZE8,
57 	PMD_PARAM_TM_QSIZE9,
58 	PMD_PARAM_TM_QSIZE10,
59 	PMD_PARAM_TM_QSIZE11,
60 	PMD_PARAM_TM_QSIZE12,
61 	NULL
62 };
63 
64 static const char welcome[] =
65 	"\n"
66 	"Welcome to Soft NIC!\n"
67 	"\n";
68 
69 static const char prompt[] = "softnic> ";
70 
71 static const struct softnic_conn_params conn_params_default = {
72 	.welcome = welcome,
73 	.prompt = prompt,
74 	.addr = "0.0.0.0",
75 	.port = 0,
76 	.buf_size = 1024 * 1024,
77 	.msg_in_len_max = 1024,
78 	.msg_out_len_max = 1024 * 1024,
79 	.msg_handle = softnic_cli_process,
80 	.msg_handle_arg = NULL,
81 };
82 
83 RTE_LOG_REGISTER(pmd_softnic_logtype, pmd.net.softnic, NOTICE);
84 
85 #define PMD_LOG(level, fmt, args...) \
86 	rte_log(RTE_LOG_ ## level, pmd_softnic_logtype, \
87 		"%s(): " fmt "\n", __func__, ##args)
88 
89 static int
90 pmd_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
91 	struct rte_eth_dev_info *dev_info)
92 {
93 	dev_info->max_rx_pktlen = UINT32_MAX;
94 	dev_info->max_rx_queues = UINT16_MAX;
95 	dev_info->max_tx_queues = UINT16_MAX;
96 
97 	return 0;
98 }
99 
100 static int
101 pmd_dev_configure(struct rte_eth_dev *dev __rte_unused)
102 {
103 	return 0;
104 }
105 
106 static int
107 pmd_rx_queue_setup(struct rte_eth_dev *dev,
108 	uint16_t rx_queue_id,
109 	uint16_t nb_rx_desc,
110 	unsigned int socket_id __rte_unused,
111 	const struct rte_eth_rxconf *rx_conf __rte_unused,
112 	struct rte_mempool *mb_pool __rte_unused)
113 {
114 	char name[NAME_SIZE];
115 	struct pmd_internals *p = dev->data->dev_private;
116 	struct softnic_swq *swq;
117 
118 	struct softnic_swq_params params = {
119 		.size = nb_rx_desc,
120 	};
121 
122 	snprintf(name, sizeof(name), "RXQ%u", rx_queue_id);
123 
124 	swq = softnic_swq_create(p,
125 		name,
126 		&params);
127 	if (swq == NULL)
128 		return -1;
129 
130 	dev->data->rx_queues[rx_queue_id] = swq->r;
131 	return 0;
132 }
133 
134 static int
135 pmd_tx_queue_setup(struct rte_eth_dev *dev,
136 	uint16_t tx_queue_id,
137 	uint16_t nb_tx_desc,
138 	unsigned int socket_id __rte_unused,
139 	const struct rte_eth_txconf *tx_conf __rte_unused)
140 {
141 	char name[NAME_SIZE];
142 	struct pmd_internals *p = dev->data->dev_private;
143 	struct softnic_swq *swq;
144 
145 	struct softnic_swq_params params = {
146 		.size = nb_tx_desc,
147 	};
148 
149 	snprintf(name, sizeof(name), "TXQ%u", tx_queue_id);
150 
151 	swq = softnic_swq_create(p,
152 		name,
153 		&params);
154 	if (swq == NULL)
155 		return -1;
156 
157 	dev->data->tx_queues[tx_queue_id] = swq->r;
158 	return 0;
159 }
160 
161 static int
162 pmd_dev_start(struct rte_eth_dev *dev)
163 {
164 	struct pmd_internals *p = dev->data->dev_private;
165 	int status;
166 
167 	/* Firmware */
168 	status = softnic_cli_script_process(p,
169 		p->params.firmware,
170 		conn_params_default.msg_in_len_max,
171 		conn_params_default.msg_out_len_max);
172 	if (status)
173 		return status;
174 
175 	/* Link UP */
176 	dev->data->dev_link.link_status = ETH_LINK_UP;
177 
178 	return 0;
179 }
180 
181 static int
182 pmd_dev_stop(struct rte_eth_dev *dev)
183 {
184 	struct pmd_internals *p = dev->data->dev_private;
185 
186 	/* Link DOWN */
187 	dev->data->dev_link.link_status = ETH_LINK_DOWN;
188 
189 	/* Firmware */
190 	softnic_pipeline_disable_all(p);
191 	softnic_pipeline_free(p);
192 	softnic_table_action_profile_free(p);
193 	softnic_port_in_action_profile_free(p);
194 	softnic_tap_free(p);
195 	softnic_tmgr_free(p);
196 	softnic_link_free(p);
197 	softnic_softnic_swq_free_keep_rxq_txq(p);
198 	softnic_mempool_free(p);
199 
200 	tm_hierarchy_free(p);
201 	softnic_mtr_free(p);
202 
203 	return 0;
204 }
205 
206 static void
207 pmd_free(struct pmd_internals *p)
208 {
209 	if (p == NULL)
210 		return;
211 
212 	if (p->params.conn_port)
213 		softnic_conn_free(p->conn);
214 
215 	softnic_thread_free(p);
216 	softnic_pipeline_free(p);
217 	softnic_table_action_profile_free(p);
218 	softnic_port_in_action_profile_free(p);
219 	softnic_tap_free(p);
220 	softnic_tmgr_free(p);
221 	softnic_link_free(p);
222 	softnic_swq_free(p);
223 	softnic_mempool_free(p);
224 
225 	tm_hierarchy_free(p);
226 	softnic_mtr_free(p);
227 
228 	rte_free(p);
229 }
230 
231 static int
232 pmd_dev_close(struct rte_eth_dev *dev)
233 {
234 	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
235 		return 0;
236 
237 	pmd_free(dev->data->dev_private);
238 	dev->data->dev_private = NULL; /* already freed */
239 	dev->data->mac_addrs = NULL; /* statically allocated */
240 	return 0;
241 }
242 
243 static int
244 pmd_link_update(struct rte_eth_dev *dev __rte_unused,
245 	int wait_to_complete __rte_unused)
246 {
247 	return 0;
248 }
249 
250 static int
251 pmd_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
252 		 const struct rte_flow_ops **ops)
253 {
254 	*ops = &pmd_flow_ops;
255 	return 0;
256 }
257 
258 static int
259 pmd_tm_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
260 {
261 	*(const struct rte_tm_ops **)arg = &pmd_tm_ops;
262 
263 	return 0;
264 }
265 
266 static int
267 pmd_mtr_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
268 {
269 	*(const struct rte_mtr_ops **)arg = &pmd_mtr_ops;
270 
271 	return 0;
272 }
273 
274 static const struct eth_dev_ops pmd_ops = {
275 	.dev_configure = pmd_dev_configure,
276 	.dev_start = pmd_dev_start,
277 	.dev_stop = pmd_dev_stop,
278 	.dev_close = pmd_dev_close,
279 	.link_update = pmd_link_update,
280 	.dev_infos_get = pmd_dev_infos_get,
281 	.rx_queue_setup = pmd_rx_queue_setup,
282 	.tx_queue_setup = pmd_tx_queue_setup,
283 	.flow_ops_get = pmd_flow_ops_get,
284 	.tm_ops_get = pmd_tm_ops_get,
285 	.mtr_ops_get = pmd_mtr_ops_get,
286 };
287 
288 static uint16_t
289 pmd_rx_pkt_burst(void *rxq,
290 	struct rte_mbuf **rx_pkts,
291 	uint16_t nb_pkts)
292 {
293 	return (uint16_t)rte_ring_sc_dequeue_burst(rxq,
294 		(void **)rx_pkts,
295 		nb_pkts,
296 		NULL);
297 }
298 
299 static uint16_t
300 pmd_tx_pkt_burst(void *txq,
301 	struct rte_mbuf **tx_pkts,
302 	uint16_t nb_pkts)
303 {
304 	return (uint16_t)rte_ring_sp_enqueue_burst(txq,
305 		(void **)tx_pkts,
306 		nb_pkts,
307 		NULL);
308 }
309 
310 static void *
311 pmd_init(struct pmd_params *params)
312 {
313 	struct pmd_internals *p;
314 	int status;
315 
316 	p = rte_zmalloc_socket(params->name,
317 		sizeof(struct pmd_internals),
318 		0,
319 		params->cpu_id);
320 	if (p == NULL)
321 		return NULL;
322 
323 	/* Params */
324 	memcpy(&p->params, params, sizeof(p->params));
325 
326 	/* Resources */
327 	tm_hierarchy_init(p);
328 	softnic_mtr_init(p);
329 
330 	softnic_mempool_init(p);
331 	softnic_swq_init(p);
332 	softnic_link_init(p);
333 	softnic_tmgr_init(p);
334 	softnic_tap_init(p);
335 	softnic_cryptodev_init(p);
336 	softnic_port_in_action_profile_init(p);
337 	softnic_table_action_profile_init(p);
338 	softnic_pipeline_init(p);
339 
340 	status = softnic_thread_init(p);
341 	if (status) {
342 		rte_free(p);
343 		return NULL;
344 	}
345 
346 	if (params->conn_port) {
347 		struct softnic_conn_params conn_params;
348 
349 		memcpy(&conn_params, &conn_params_default, sizeof(conn_params));
350 		conn_params.port = p->params.conn_port;
351 		conn_params.msg_handle_arg = p;
352 
353 		p->conn = softnic_conn_init(&conn_params);
354 		if (p->conn == NULL) {
355 			softnic_thread_free(p);
356 			rte_free(p);
357 			return NULL;
358 		}
359 	}
360 
361 	return p;
362 }
363 
364 static struct rte_ether_addr eth_addr = {
365 	.addr_bytes = {0},
366 };
367 
368 static int
369 pmd_ethdev_register(struct rte_vdev_device *vdev,
370 	struct pmd_params *params,
371 	void *dev_private)
372 {
373 	struct rte_eth_dev *dev;
374 
375 	/* Ethdev entry allocation */
376 	dev = rte_eth_dev_allocate(params->name);
377 	if (!dev)
378 		return -ENOMEM;
379 
380 	/* dev */
381 	dev->rx_pkt_burst = pmd_rx_pkt_burst;
382 	dev->tx_pkt_burst = pmd_tx_pkt_burst;
383 	dev->tx_pkt_prepare = NULL;
384 	dev->dev_ops = &pmd_ops;
385 	dev->device = &vdev->device;
386 
387 	/* dev->data */
388 	dev->data->dev_private = dev_private;
389 	dev->data->dev_link.link_speed = ETH_SPEED_NUM_100G;
390 	dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
391 	dev->data->dev_link.link_autoneg = ETH_LINK_FIXED;
392 	dev->data->dev_link.link_status = ETH_LINK_DOWN;
393 	dev->data->mac_addrs = &eth_addr;
394 	dev->data->promiscuous = 1;
395 	dev->data->numa_node = params->cpu_id;
396 
397 	rte_eth_dev_probing_finish(dev);
398 
399 	return 0;
400 }
401 
402 static int
403 get_string(const char *key __rte_unused, const char *value, void *extra_args)
404 {
405 	if (!value || !extra_args)
406 		return -EINVAL;
407 
408 	*(char **)extra_args = strdup(value);
409 
410 	if (!*(char **)extra_args)
411 		return -ENOMEM;
412 
413 	return 0;
414 }
415 
416 static int
417 get_uint32(const char *key __rte_unused, const char *value, void *extra_args)
418 {
419 	if (!value || !extra_args)
420 		return -EINVAL;
421 
422 	*(uint32_t *)extra_args = strtoull(value, NULL, 0);
423 
424 	return 0;
425 }
426 
427 static int
428 get_uint16(const char *key __rte_unused, const char *value, void *extra_args)
429 {
430 	if (!value || !extra_args)
431 		return -EINVAL;
432 
433 	*(uint16_t *)extra_args = strtoull(value, NULL, 0);
434 
435 	return 0;
436 }
437 
438 static int
439 pmd_parse_args(struct pmd_params *p, const char *params)
440 {
441 	struct rte_kvargs *kvlist;
442 	int ret = 0;
443 
444 	kvlist = rte_kvargs_parse(params, pmd_valid_args);
445 	if (kvlist == NULL)
446 		return -EINVAL;
447 
448 	/* Set default values */
449 	memset(p, 0, sizeof(*p));
450 	p->firmware = SOFTNIC_FIRMWARE;
451 	p->cpu_id = SOFTNIC_CPU_ID;
452 	p->sc = SOFTNIC_SC;
453 	p->tm.n_queues = SOFTNIC_TM_N_QUEUES;
454 	p->tm.qsize[0] = SOFTNIC_TM_QUEUE_SIZE;
455 	p->tm.qsize[1] = SOFTNIC_TM_QUEUE_SIZE;
456 	p->tm.qsize[2] = SOFTNIC_TM_QUEUE_SIZE;
457 	p->tm.qsize[3] = SOFTNIC_TM_QUEUE_SIZE;
458 	p->tm.qsize[4] = SOFTNIC_TM_QUEUE_SIZE;
459 	p->tm.qsize[5] = SOFTNIC_TM_QUEUE_SIZE;
460 	p->tm.qsize[6] = SOFTNIC_TM_QUEUE_SIZE;
461 	p->tm.qsize[7] = SOFTNIC_TM_QUEUE_SIZE;
462 	p->tm.qsize[8] = SOFTNIC_TM_QUEUE_SIZE;
463 	p->tm.qsize[9] = SOFTNIC_TM_QUEUE_SIZE;
464 	p->tm.qsize[10] = SOFTNIC_TM_QUEUE_SIZE;
465 	p->tm.qsize[11] = SOFTNIC_TM_QUEUE_SIZE;
466 	p->tm.qsize[12] = SOFTNIC_TM_QUEUE_SIZE;
467 
468 	/* Firmware script (optional) */
469 	if (rte_kvargs_count(kvlist, PMD_PARAM_FIRMWARE) == 1) {
470 		ret = rte_kvargs_process(kvlist, PMD_PARAM_FIRMWARE,
471 			&get_string, &p->firmware);
472 		if (ret < 0)
473 			goto out_free;
474 	}
475 
476 	/* Connection listening port (optional) */
477 	if (rte_kvargs_count(kvlist, PMD_PARAM_CONN_PORT) == 1) {
478 		ret = rte_kvargs_process(kvlist, PMD_PARAM_CONN_PORT,
479 			&get_uint16, &p->conn_port);
480 		if (ret < 0)
481 			goto out_free;
482 	}
483 
484 	/* CPU ID (optional) */
485 	if (rte_kvargs_count(kvlist, PMD_PARAM_CPU_ID) == 1) {
486 		ret = rte_kvargs_process(kvlist, PMD_PARAM_CPU_ID,
487 			&get_uint32, &p->cpu_id);
488 		if (ret < 0)
489 			goto out_free;
490 	}
491 
492 	/* Service cores (optional) */
493 	if (rte_kvargs_count(kvlist, PMD_PARAM_SC) == 1) {
494 		ret = rte_kvargs_process(kvlist, PMD_PARAM_SC,
495 			&get_uint32, &p->sc);
496 		if (ret < 0)
497 			goto out_free;
498 	}
499 
500 	/* TM number of queues (optional) */
501 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_N_QUEUES) == 1) {
502 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_N_QUEUES,
503 			&get_uint32, &p->tm.n_queues);
504 		if (ret < 0)
505 			goto out_free;
506 	}
507 
508 	/* TM queue size 0 .. 3 (optional) */
509 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE0) == 1) {
510 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE0,
511 			&get_uint32, &p->tm.qsize[0]);
512 		if (ret < 0)
513 			goto out_free;
514 	}
515 
516 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE1) == 1) {
517 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE1,
518 			&get_uint32, &p->tm.qsize[1]);
519 		if (ret < 0)
520 			goto out_free;
521 	}
522 
523 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE2) == 1) {
524 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE2,
525 			&get_uint32, &p->tm.qsize[2]);
526 		if (ret < 0)
527 			goto out_free;
528 	}
529 
530 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE3) == 1) {
531 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE3,
532 			&get_uint32, &p->tm.qsize[3]);
533 		if (ret < 0)
534 			goto out_free;
535 	}
536 
537 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE4) == 1) {
538 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE4,
539 			&get_uint32, &p->tm.qsize[4]);
540 		if (ret < 0)
541 			goto out_free;
542 	}
543 
544 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE5) == 1) {
545 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE5,
546 			&get_uint32, &p->tm.qsize[5]);
547 		if (ret < 0)
548 			goto out_free;
549 	}
550 
551 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE6) == 1) {
552 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE6,
553 			&get_uint32, &p->tm.qsize[6]);
554 		if (ret < 0)
555 			goto out_free;
556 	}
557 
558 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE7) == 1) {
559 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE7,
560 			&get_uint32, &p->tm.qsize[7]);
561 		if (ret < 0)
562 			goto out_free;
563 	}
564 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE8) == 1) {
565 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE8,
566 			&get_uint32, &p->tm.qsize[8]);
567 		if (ret < 0)
568 			goto out_free;
569 	}
570 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE9) == 1) {
571 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE9,
572 			&get_uint32, &p->tm.qsize[9]);
573 		if (ret < 0)
574 			goto out_free;
575 	}
576 
577 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE10) == 1) {
578 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE10,
579 			&get_uint32, &p->tm.qsize[10]);
580 		if (ret < 0)
581 			goto out_free;
582 	}
583 
584 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE11) == 1) {
585 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE11,
586 			&get_uint32, &p->tm.qsize[11]);
587 		if (ret < 0)
588 			goto out_free;
589 	}
590 
591 	if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE12) == 1) {
592 		ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE12,
593 			&get_uint32, &p->tm.qsize[12]);
594 		if (ret < 0)
595 			goto out_free;
596 	}
597 
598 out_free:
599 	rte_kvargs_free(kvlist);
600 	return ret;
601 }
602 
603 static int
604 pmd_probe(struct rte_vdev_device *vdev)
605 {
606 	struct pmd_params p;
607 	const char *params;
608 	int status = 0;
609 
610 	void *dev_private;
611 	const char *name = rte_vdev_device_name(vdev);
612 
613 	PMD_LOG(INFO, "Probing device \"%s\"", name);
614 
615 	/* Parse input arguments */
616 	params = rte_vdev_device_args(vdev);
617 	if (!params)
618 		return -EINVAL;
619 
620 	status = pmd_parse_args(&p, params);
621 	if (status)
622 		return status;
623 
624 	p.name = name;
625 
626 	/* Allocate and initialize soft ethdev private data */
627 	dev_private = pmd_init(&p);
628 	if (dev_private == NULL)
629 		return -ENOMEM;
630 
631 	/* Register soft ethdev */
632 	PMD_LOG(INFO, "Creating soft ethdev \"%s\"", p.name);
633 
634 	status = pmd_ethdev_register(vdev, &p, dev_private);
635 	if (status) {
636 		pmd_free(dev_private);
637 		return status;
638 	}
639 
640 	return 0;
641 }
642 
643 static int
644 pmd_remove(struct rte_vdev_device *vdev)
645 {
646 	struct rte_eth_dev *dev = NULL;
647 
648 	if (!vdev)
649 		return -EINVAL;
650 
651 	PMD_LOG(INFO, "Removing device \"%s\"", rte_vdev_device_name(vdev));
652 
653 	/* Find the ethdev entry */
654 	dev = rte_eth_dev_allocated(rte_vdev_device_name(vdev));
655 	if (dev == NULL)
656 		return 0; /* port already released */
657 
658 	pmd_dev_close(dev);
659 	rte_eth_dev_release_port(dev);
660 
661 	return 0;
662 }
663 
664 static struct rte_vdev_driver pmd_softnic_drv = {
665 	.probe = pmd_probe,
666 	.remove = pmd_remove,
667 };
668 
669 RTE_PMD_REGISTER_VDEV(net_softnic, pmd_softnic_drv);
670 RTE_PMD_REGISTER_PARAM_STRING(net_softnic,
671 	PMD_PARAM_FIRMWARE "=<string> "
672 	PMD_PARAM_CONN_PORT "=<uint16> "
673 	PMD_PARAM_CPU_ID "=<uint32> "
674 	PMD_PARAM_TM_N_QUEUES "=<uint32> "
675 	PMD_PARAM_TM_QSIZE0 "=<uint32> "
676 	PMD_PARAM_TM_QSIZE1 "=<uint32> "
677 	PMD_PARAM_TM_QSIZE2 "=<uint32> "
678 	PMD_PARAM_TM_QSIZE3 "=<uint32>"
679 	PMD_PARAM_TM_QSIZE4 "=<uint32> "
680 	PMD_PARAM_TM_QSIZE5 "=<uint32> "
681 	PMD_PARAM_TM_QSIZE6 "=<uint32> "
682 	PMD_PARAM_TM_QSIZE7 "=<uint32> "
683 	PMD_PARAM_TM_QSIZE8 "=<uint32> "
684 	PMD_PARAM_TM_QSIZE9 "=<uint32> "
685 	PMD_PARAM_TM_QSIZE10 "=<uint32> "
686 	PMD_PARAM_TM_QSIZE11 "=<uint32>"
687 	PMD_PARAM_TM_QSIZE12 "=<uint32>"
688 );
689 
690 int
691 rte_pmd_softnic_manage(uint16_t port_id)
692 {
693 	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
694 	struct pmd_internals *softnic;
695 
696 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
697 	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
698 #endif
699 
700 	softnic = dev->data->dev_private;
701 
702 	softnic_conn_poll_for_conn(softnic->conn);
703 
704 	softnic_conn_poll_for_msg(softnic->conn);
705 
706 	return 0;
707 }
708