xref: /dpdk/drivers/net/enic/enic_ethdev.c (revision a5d7a3f77ddc3c3ae18bce04d7555b458360cc65)
1 /*
2  * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
4  *
5  * Copyright (c) 2014, Cisco Systems, Inc.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  *
33  */
34 
35 #include <stdio.h>
36 #include <stdint.h>
37 
38 #include <rte_dev.h>
39 #include <rte_pci.h>
40 #include <rte_ethdev.h>
41 #include <rte_string_fns.h>
42 
43 #include "vnic_intr.h"
44 #include "vnic_cq.h"
45 #include "vnic_wq.h"
46 #include "vnic_rq.h"
47 #include "vnic_enet.h"
48 #include "enic.h"
49 
50 #ifdef RTE_LIBRTE_ENIC_DEBUG
51 #define ENICPMD_FUNC_TRACE() \
52 	RTE_LOG(DEBUG, PMD, "ENICPMD trace: %s\n", __func__)
53 #else
54 #define ENICPMD_FUNC_TRACE() (void)0
55 #endif
56 
57 /*
58  * The set of PCI devices this driver supports
59  */
60 #define CISCO_PCI_VENDOR_ID 0x1137
61 static const struct rte_pci_id pci_id_enic_map[] = {
62 	{ RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
63 	{ RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
64 	{.vendor_id = 0, /* sentinel */},
65 };
66 
67 static int
68 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
69 			enum rte_filter_op filter_op, void *arg)
70 {
71 	struct enic *enic = pmd_priv(eth_dev);
72 	int ret = 0;
73 
74 	ENICPMD_FUNC_TRACE();
75 	if (filter_op == RTE_ETH_FILTER_NOP)
76 		return 0;
77 
78 	if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
79 		return -EINVAL;
80 
81 	switch (filter_op) {
82 	case RTE_ETH_FILTER_ADD:
83 	case RTE_ETH_FILTER_UPDATE:
84 		ret = enic_fdir_add_fltr(enic,
85 			(struct rte_eth_fdir_filter *)arg);
86 		break;
87 
88 	case RTE_ETH_FILTER_DELETE:
89 		ret = enic_fdir_del_fltr(enic,
90 			(struct rte_eth_fdir_filter *)arg);
91 		break;
92 
93 	case RTE_ETH_FILTER_STATS:
94 		enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
95 		break;
96 
97 	case RTE_ETH_FILTER_FLUSH:
98 	case RTE_ETH_FILTER_INFO:
99 		dev_warning(enic, "unsupported operation %u", filter_op);
100 		ret = -ENOTSUP;
101 		break;
102 	default:
103 		dev_err(enic, "unknown operation %u", filter_op);
104 		ret = -EINVAL;
105 		break;
106 	}
107 	return ret;
108 }
109 
110 static int
111 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
112 		     enum rte_filter_type filter_type,
113 		     enum rte_filter_op filter_op,
114 		     void *arg)
115 {
116 	int ret = -EINVAL;
117 
118 	if (RTE_ETH_FILTER_FDIR == filter_type)
119 		ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
120 	else
121 		dev_warning(enic, "Filter type (%d) not supported",
122 			filter_type);
123 
124 	return ret;
125 }
126 
127 static void enicpmd_dev_tx_queue_release(void *txq)
128 {
129 	ENICPMD_FUNC_TRACE();
130 	enic_free_wq(txq);
131 }
132 
133 static int enicpmd_dev_setup_intr(struct enic *enic)
134 {
135 	int ret;
136 	unsigned int index;
137 
138 	ENICPMD_FUNC_TRACE();
139 
140 	/* Are we done with the init of all the queues? */
141 	for (index = 0; index < enic->cq_count; index++) {
142 		if (!enic->cq[index].ctrl)
143 			break;
144 	}
145 	if (enic->cq_count != index)
146 		return 0;
147 	for (index = 0; index < enic->wq_count; index++) {
148 		if (!enic->wq[index].ctrl)
149 			break;
150 	}
151 	if (enic->wq_count != index)
152 		return 0;
153 	/* check start of packet (SOP) RQs only in case scatter is disabled. */
154 	for (index = 0; index < enic->rq_count; index++) {
155 		if (!enic->rq[enic_sop_rq(index)].ctrl)
156 			break;
157 	}
158 	if (enic->rq_count != index)
159 		return 0;
160 
161 	ret = enic_alloc_intr_resources(enic);
162 	if (ret) {
163 		dev_err(enic, "alloc intr failed\n");
164 		return ret;
165 	}
166 	enic_init_vnic_resources(enic);
167 
168 	ret = enic_setup_finish(enic);
169 	if (ret)
170 		dev_err(enic, "setup could not be finished\n");
171 
172 	return ret;
173 }
174 
175 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
176 	uint16_t queue_idx,
177 	uint16_t nb_desc,
178 	unsigned int socket_id,
179 	__rte_unused const struct rte_eth_txconf *tx_conf)
180 {
181 	int ret;
182 	struct enic *enic = pmd_priv(eth_dev);
183 
184 	ENICPMD_FUNC_TRACE();
185 	if (queue_idx >= ENIC_WQ_MAX) {
186 		dev_err(enic,
187 			"Max number of TX queues exceeded.  Max is %d\n",
188 			ENIC_WQ_MAX);
189 		return -EINVAL;
190 	}
191 
192 	eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
193 
194 	ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
195 	if (ret) {
196 		dev_err(enic, "error in allocating wq\n");
197 		return ret;
198 	}
199 
200 	return enicpmd_dev_setup_intr(enic);
201 }
202 
203 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
204 	uint16_t queue_idx)
205 {
206 	struct enic *enic = pmd_priv(eth_dev);
207 
208 	ENICPMD_FUNC_TRACE();
209 
210 	enic_start_wq(enic, queue_idx);
211 
212 	return 0;
213 }
214 
215 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
216 	uint16_t queue_idx)
217 {
218 	int ret;
219 	struct enic *enic = pmd_priv(eth_dev);
220 
221 	ENICPMD_FUNC_TRACE();
222 
223 	ret = enic_stop_wq(enic, queue_idx);
224 	if (ret)
225 		dev_err(enic, "error in stopping wq %d\n", queue_idx);
226 
227 	return ret;
228 }
229 
230 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
231 	uint16_t queue_idx)
232 {
233 	struct enic *enic = pmd_priv(eth_dev);
234 
235 	ENICPMD_FUNC_TRACE();
236 
237 	enic_start_rq(enic, queue_idx);
238 
239 	return 0;
240 }
241 
242 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
243 	uint16_t queue_idx)
244 {
245 	int ret;
246 	struct enic *enic = pmd_priv(eth_dev);
247 
248 	ENICPMD_FUNC_TRACE();
249 
250 	ret = enic_stop_rq(enic, queue_idx);
251 	if (ret)
252 		dev_err(enic, "error in stopping rq %d\n", queue_idx);
253 
254 	return ret;
255 }
256 
257 static void enicpmd_dev_rx_queue_release(void *rxq)
258 {
259 	ENICPMD_FUNC_TRACE();
260 	enic_free_rq(rxq);
261 }
262 
263 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
264 	uint16_t queue_idx,
265 	uint16_t nb_desc,
266 	unsigned int socket_id,
267 	const struct rte_eth_rxconf *rx_conf,
268 	struct rte_mempool *mp)
269 {
270 	int ret;
271 	struct enic *enic = pmd_priv(eth_dev);
272 
273 	ENICPMD_FUNC_TRACE();
274 	/* With Rx scatter support, two RQs are now used on VIC per RQ used
275 	 * by the application.
276 	 */
277 	if (queue_idx * 2 >= ENIC_RQ_MAX) {
278 		dev_err(enic,
279 			"Max number of RX queues exceeded.  Max is %d. This PMD uses 2 RQs on VIC per RQ used by DPDK.\n",
280 			ENIC_RQ_MAX);
281 		return -EINVAL;
282 	}
283 
284 	eth_dev->data->rx_queues[queue_idx] =
285 		(void *)&enic->rq[enic_sop_rq(queue_idx)];
286 
287 	ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc);
288 	if (ret) {
289 		dev_err(enic, "error in allocating rq\n");
290 		return ret;
291 	}
292 
293 	enic->rq[queue_idx].rx_free_thresh = rx_conf->rx_free_thresh;
294 	dev_debug(enic, "Set queue_id:%u free thresh:%u\n", queue_idx,
295 			enic->rq[queue_idx].rx_free_thresh);
296 
297 	return enicpmd_dev_setup_intr(enic);
298 }
299 
300 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
301 	uint16_t vlan_id, int on)
302 {
303 	struct enic *enic = pmd_priv(eth_dev);
304 	int err;
305 
306 	ENICPMD_FUNC_TRACE();
307 	if (on)
308 		err = enic_add_vlan(enic, vlan_id);
309 	else
310 		err = enic_del_vlan(enic, vlan_id);
311 	return err;
312 }
313 
314 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
315 {
316 	struct enic *enic = pmd_priv(eth_dev);
317 
318 	ENICPMD_FUNC_TRACE();
319 
320 	if (mask & ETH_VLAN_STRIP_MASK) {
321 		if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
322 			enic->ig_vlan_strip_en = 1;
323 		else
324 			enic->ig_vlan_strip_en = 0;
325 	}
326 	enic_set_rss_nic_cfg(enic);
327 
328 
329 	if (mask & ETH_VLAN_FILTER_MASK) {
330 		dev_warning(enic,
331 			"Configuration of VLAN filter is not supported\n");
332 	}
333 
334 	if (mask & ETH_VLAN_EXTEND_MASK) {
335 		dev_warning(enic,
336 			"Configuration of extended VLAN is not supported\n");
337 	}
338 }
339 
340 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
341 {
342 	int ret;
343 	struct enic *enic = pmd_priv(eth_dev);
344 
345 	ENICPMD_FUNC_TRACE();
346 	ret = enic_set_vnic_res(enic);
347 	if (ret) {
348 		dev_err(enic, "Set vNIC resource num  failed, aborting\n");
349 		return ret;
350 	}
351 
352 	if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
353 		eth_dev->data->dev_conf.rxmode.header_split) {
354 		/* Enable header-data-split */
355 		enic_set_hdr_split_size(enic,
356 			eth_dev->data->dev_conf.rxmode.split_hdr_size);
357 	}
358 
359 	enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
360 	enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
361 	return 0;
362 }
363 
364 /* Start the device.
365  * It returns 0 on success.
366  */
367 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
368 {
369 	struct enic *enic = pmd_priv(eth_dev);
370 
371 	ENICPMD_FUNC_TRACE();
372 	return enic_enable(enic);
373 }
374 
375 /*
376  * Stop device: disable rx and tx functions to allow for reconfiguring.
377  */
378 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
379 {
380 	struct rte_eth_link link;
381 	struct enic *enic = pmd_priv(eth_dev);
382 
383 	ENICPMD_FUNC_TRACE();
384 	enic_disable(enic);
385 	memset(&link, 0, sizeof(link));
386 	rte_atomic64_cmpset((uint64_t *)&eth_dev->data->dev_link,
387 		*(uint64_t *)&eth_dev->data->dev_link,
388 		*(uint64_t *)&link);
389 }
390 
391 /*
392  * Stop device.
393  */
394 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
395 {
396 	struct enic *enic = pmd_priv(eth_dev);
397 
398 	ENICPMD_FUNC_TRACE();
399 	enic_remove(enic);
400 }
401 
402 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
403 	__rte_unused int wait_to_complete)
404 {
405 	struct enic *enic = pmd_priv(eth_dev);
406 	int ret;
407 	int link_status = 0;
408 
409 	ENICPMD_FUNC_TRACE();
410 	link_status = enic_get_link_status(enic);
411 	ret = (link_status == enic->link_status);
412 	enic->link_status = link_status;
413 	eth_dev->data->dev_link.link_status = link_status;
414 	eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
415 	eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
416 	return ret;
417 }
418 
419 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
420 	struct rte_eth_stats *stats)
421 {
422 	struct enic *enic = pmd_priv(eth_dev);
423 
424 	ENICPMD_FUNC_TRACE();
425 	enic_dev_stats_get(enic, stats);
426 }
427 
428 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
429 {
430 	struct enic *enic = pmd_priv(eth_dev);
431 
432 	ENICPMD_FUNC_TRACE();
433 	enic_dev_stats_clear(enic);
434 }
435 
436 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
437 	struct rte_eth_dev_info *device_info)
438 {
439 	struct enic *enic = pmd_priv(eth_dev);
440 
441 	ENICPMD_FUNC_TRACE();
442 	/* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
443 	device_info->max_rx_queues = enic->conf_rq_count / 2;
444 	device_info->max_tx_queues = enic->conf_wq_count;
445 	device_info->min_rx_bufsize = ENIC_MIN_MTU;
446 	device_info->max_rx_pktlen = enic->rte_dev->data->mtu
447 				   + ETHER_HDR_LEN + 4;
448 	device_info->max_mac_addrs = 1;
449 	device_info->rx_offload_capa =
450 		DEV_RX_OFFLOAD_VLAN_STRIP |
451 		DEV_RX_OFFLOAD_IPV4_CKSUM |
452 		DEV_RX_OFFLOAD_UDP_CKSUM  |
453 		DEV_RX_OFFLOAD_TCP_CKSUM;
454 	device_info->tx_offload_capa =
455 		DEV_TX_OFFLOAD_VLAN_INSERT |
456 		DEV_TX_OFFLOAD_IPV4_CKSUM  |
457 		DEV_TX_OFFLOAD_UDP_CKSUM   |
458 		DEV_TX_OFFLOAD_TCP_CKSUM;
459 	device_info->default_rxconf = (struct rte_eth_rxconf) {
460 		.rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
461 	};
462 }
463 
464 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
465 {
466 	static const uint32_t ptypes[] = {
467 		RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
468 		RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
469 		RTE_PTYPE_L4_TCP,
470 		RTE_PTYPE_L4_UDP,
471 		RTE_PTYPE_L4_FRAG,
472 		RTE_PTYPE_L4_NONFRAG,
473 		RTE_PTYPE_UNKNOWN
474 	};
475 
476 	if (dev->rx_pkt_burst == enic_recv_pkts)
477 		return ptypes;
478 	return NULL;
479 }
480 
481 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
482 {
483 	struct enic *enic = pmd_priv(eth_dev);
484 
485 	ENICPMD_FUNC_TRACE();
486 	enic->promisc = 1;
487 	enic_add_packet_filter(enic);
488 }
489 
490 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
491 {
492 	struct enic *enic = pmd_priv(eth_dev);
493 
494 	ENICPMD_FUNC_TRACE();
495 	enic->promisc = 0;
496 	enic_add_packet_filter(enic);
497 }
498 
499 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
500 {
501 	struct enic *enic = pmd_priv(eth_dev);
502 
503 	ENICPMD_FUNC_TRACE();
504 	enic->allmulti = 1;
505 	enic_add_packet_filter(enic);
506 }
507 
508 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
509 {
510 	struct enic *enic = pmd_priv(eth_dev);
511 
512 	ENICPMD_FUNC_TRACE();
513 	enic->allmulti = 0;
514 	enic_add_packet_filter(enic);
515 }
516 
517 static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
518 	struct ether_addr *mac_addr,
519 	__rte_unused uint32_t index, __rte_unused uint32_t pool)
520 {
521 	struct enic *enic = pmd_priv(eth_dev);
522 
523 	ENICPMD_FUNC_TRACE();
524 	enic_set_mac_address(enic, mac_addr->addr_bytes);
525 }
526 
527 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, __rte_unused uint32_t index)
528 {
529 	struct enic *enic = pmd_priv(eth_dev);
530 
531 	ENICPMD_FUNC_TRACE();
532 	enic_del_mac_address(enic);
533 }
534 
535 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
536 {
537 	struct enic *enic = pmd_priv(eth_dev);
538 
539 	ENICPMD_FUNC_TRACE();
540 	return enic_set_mtu(enic, mtu);
541 }
542 
543 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
544 	.dev_configure        = enicpmd_dev_configure,
545 	.dev_start            = enicpmd_dev_start,
546 	.dev_stop             = enicpmd_dev_stop,
547 	.dev_set_link_up      = NULL,
548 	.dev_set_link_down    = NULL,
549 	.dev_close            = enicpmd_dev_close,
550 	.promiscuous_enable   = enicpmd_dev_promiscuous_enable,
551 	.promiscuous_disable  = enicpmd_dev_promiscuous_disable,
552 	.allmulticast_enable  = enicpmd_dev_allmulticast_enable,
553 	.allmulticast_disable = enicpmd_dev_allmulticast_disable,
554 	.link_update          = enicpmd_dev_link_update,
555 	.stats_get            = enicpmd_dev_stats_get,
556 	.stats_reset          = enicpmd_dev_stats_reset,
557 	.queue_stats_mapping_set = NULL,
558 	.dev_infos_get        = enicpmd_dev_info_get,
559 	.dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
560 	.mtu_set              = enicpmd_mtu_set,
561 	.vlan_filter_set      = enicpmd_vlan_filter_set,
562 	.vlan_tpid_set        = NULL,
563 	.vlan_offload_set     = enicpmd_vlan_offload_set,
564 	.vlan_strip_queue_set = NULL,
565 	.rx_queue_start       = enicpmd_dev_rx_queue_start,
566 	.rx_queue_stop        = enicpmd_dev_rx_queue_stop,
567 	.tx_queue_start       = enicpmd_dev_tx_queue_start,
568 	.tx_queue_stop        = enicpmd_dev_tx_queue_stop,
569 	.rx_queue_setup       = enicpmd_dev_rx_queue_setup,
570 	.rx_queue_release     = enicpmd_dev_rx_queue_release,
571 	.rx_queue_count       = NULL,
572 	.rx_descriptor_done   = NULL,
573 	.tx_queue_setup       = enicpmd_dev_tx_queue_setup,
574 	.tx_queue_release     = enicpmd_dev_tx_queue_release,
575 	.dev_led_on           = NULL,
576 	.dev_led_off          = NULL,
577 	.flow_ctrl_get        = NULL,
578 	.flow_ctrl_set        = NULL,
579 	.priority_flow_ctrl_set = NULL,
580 	.mac_addr_add         = enicpmd_add_mac_addr,
581 	.mac_addr_remove      = enicpmd_remove_mac_addr,
582 	.filter_ctrl          = enicpmd_dev_filter_ctrl,
583 };
584 
585 struct enic *enicpmd_list_head = NULL;
586 /* Initialize the driver
587  * It returns 0 on success.
588  */
589 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
590 {
591 	struct rte_pci_device *pdev;
592 	struct rte_pci_addr *addr;
593 	struct enic *enic = pmd_priv(eth_dev);
594 
595 	ENICPMD_FUNC_TRACE();
596 
597 	enic->port_id = eth_dev->data->port_id;
598 	enic->rte_dev = eth_dev;
599 	eth_dev->dev_ops = &enicpmd_eth_dev_ops;
600 	eth_dev->rx_pkt_burst = &enic_recv_pkts;
601 	eth_dev->tx_pkt_burst = &enic_xmit_pkts;
602 
603 	pdev = eth_dev->pci_dev;
604 	rte_eth_copy_pci_info(eth_dev, pdev);
605 	enic->pdev = pdev;
606 	addr = &pdev->addr;
607 
608 	snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
609 		addr->domain, addr->bus, addr->devid, addr->function);
610 
611 	return enic_probe(enic);
612 }
613 
614 static struct eth_driver rte_enic_pmd = {
615 	.pci_drv = {
616 		.name = "rte_enic_pmd",
617 		.id_table = pci_id_enic_map,
618 		.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
619 	},
620 	.eth_dev_init = eth_enicpmd_dev_init,
621 	.dev_private_size = sizeof(struct enic),
622 };
623 
624 /* Driver initialization routine.
625  * Invoked once at EAL init time.
626  * Register as the [Poll Mode] Driver of Cisco ENIC device.
627  */
628 static int
629 rte_enic_pmd_init(__rte_unused const char *name,
630 	 __rte_unused const char *params)
631 {
632 	ENICPMD_FUNC_TRACE();
633 
634 	rte_eth_driver_register(&rte_enic_pmd);
635 	return 0;
636 }
637 
638 static struct rte_driver rte_enic_driver = {
639 	.type = PMD_PDEV,
640 	.init = rte_enic_pmd_init,
641 };
642 
643 PMD_REGISTER_DRIVER(rte_enic_driver, enic);
644 DRIVER_REGISTER_PCI_TABLE(enic, pci_id_enic_map);
645